TY - CPAPER T1 - Certifying Wildland Recreationists: Lessons from the Tragedy of the Commons T2 - American Sociological Association AN - 61750362; 92S25897 AB - In an investigation of the values, attitudes, & behavior hierarchy among urban, ethnically & racially diverse visitors to recreation sites of 2 national forests in southern Calif, survey data were obtained from 270 Anglos, Hispanics, Mexican Americans, & Central Americans. The most frequently held value was "to have fun & enjoyment in life." Attitudes about particular recreation activities indicated that resting on weekends, attending movies, fishing, jogging, snow skiing, & tennis were the activities most likely to reinforce these values. These findings do not support the belief that behaviors follow attitudes; the influence of other factors on behavior are discussed. JF - American Sociological Association AU - Chavez, Deborah J Y1 - 1992///0, PY - 1992 DA - 0, 1992 KW - recreational activities, attitudes vs behaviors, California national forest visitors KW - survey data KW - California KW - Attitudes KW - Recreation KW - Behavior KW - Parks KW - Forestry KW - proceeding KW - 2656: environmental interactions; environmental interactions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61750362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Sociological+Association&rft.atitle=Certifying+Wildland+Recreationists%3A+Lessons+from+the+Tragedy+of+the+Commons&rft.au=Chavez%2C+Deborah+J&rft.aulast=Chavez&rft.aufirst=Deborah&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Sociological+Association&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1992 N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Postglacial climate changes and the occurrence of regional erosion surfaces, Midwest, USA AN - 52716329; 1997-035296 JF - International Geological Congress, Abstracts--Congres Geologique Internationale, Resumes AU - Olson, Carolyn G AU - Anonymous Y1 - 1992 PY - 1992 DA - 1992 SP - 387 PB - [International Geological Congress], [location varies] VL - 29 KW - upper Wisconsinan KW - United States KW - Quaternary KW - Illinois KW - erosion surfaces KW - clastic sediments KW - postglacial environment KW - erosion features KW - till KW - paleoclimatology KW - Iowa KW - Holocene KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - Illinoian KW - Indiana KW - sediments KW - Pleistocene KW - loess KW - Midwest KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52716329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts--Congres+Geologique+Internationale%2C+Resumes&rft.atitle=Postglacial+climate+changes+and+the+occurrence+of+regional+erosion+surfaces%2C+Midwest%2C+USA&rft.au=Olson%2C+Carolyn+G%3BAnonymous&rft.aulast=Olson&rft.aufirst=Carolyn&rft.date=1992-01-01&rft.volume=29&rft.issue=&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts--Congres+Geologique+Internationale%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 29th international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique, Vandoeuvre-les-Nancy, France N1 - Date revised - 1997-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - Cenozoic; clastic sediments; erosion features; erosion surfaces; Holocene; Illinoian; Illinois; Indiana; Iowa; loess; Midwest; paleoclimatology; Pleistocene; postglacial environment; Quaternary; sediments; till; United States; upper Pleistocene; upper Wisconsinan; Wisconsinan ER - TY - JOUR T1 - Twelve years of abandoned mineland reclamation activities by the United States Department of Agriculture-Soil Conservation Service in Southwest Pennsylvania AN - 51055291; 1996-080190 JF - ASAE Publication AU - Bogovich, Wayne M AU - Younos, T AU - Diplas, P AU - Mostaghimi, S Y1 - 1992 PY - 1992 DA - 1992 SP - 230 EP - 239 PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 14-92 SN - 0197-1662, 0197-1662 KW - United States KW - organic residues KW - reclamation KW - government agencies KW - coal fields KW - U. S. Department of Agriculture KW - remediation KW - sedimentary rocks KW - coal KW - mobility KW - abandoned mines KW - soils KW - programs KW - mines KW - toxic materials KW - acid mine drainage KW - pollutants KW - drainage KW - surface water KW - pollution KW - preventive measures KW - southwestern Pennsylvania KW - Pennsylvania KW - tailings KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51055291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASAE+Publication&rft.atitle=Twelve+years+of+abandoned+mineland+reclamation+activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+Wayne+M%3BYounos%2C+T%3BDiplas%2C+P%3BMostaghimi%2C+S&rft.aulast=Bogovich&rft.aufirst=Wayne&rft.date=1992-01-01&rft.volume=14-92&rft.issue=&rft.spage=230&rft.isbn=0929355377&rft.btitle=&rft.title=ASAE+Publication&rft.issn=01971662&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Land reclamation; advances in research & technology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 6 N1 - PubXState - MI N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; coal; coal fields; drainage; government agencies; land use; mines; mobility; organic residues; Pennsylvania; pollutants; pollution; preventive measures; programs; reclamation; remediation; sedimentary rocks; soils; southwestern Pennsylvania; surface water; tailings; toxic materials; U. S. Department of Agriculture; United States ER - TY - JOUR T1 - Using USDA Soil Conservation Service county soils data with a geographic information system AN - 50977970; 1993-011694 JF - ASTM Special Technical Publication. STP AU - Franchek, Richard J AU - Biggam, Peter F A2 - Johnson, A. I. A2 - Pettersson, C. B. A2 - Fulton, J. L. Y1 - 1992 PY - 1992 DA - 1992 SP - 115 EP - 121 PB - American Society for Testing and Materials, Philadelphia, PA VL - 1126 SN - 0066-0558, 0066-0558 KW - standards KW - soils KW - geographic information systems KW - cartography KW - information systems KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50977970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Using+USDA+Soil+Conservation+Service+county+soils+data+with+a+geographic+information+system&rft.au=Franchek%2C+Richard+J%3BBiggam%2C+Peter+F&rft.aulast=Franchek&rft.aufirst=Richard&rft.date=1992-01-01&rft.volume=1126&rft.issue=&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 3 N1 - PubXState - PA N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - cartography; geographic information systems; information systems; soils; standards ER - TY - JOUR T1 - A user-friendly, contaminant transport software package for the preliminary assessment of soil and groundwater contamination; an overview of TETrans AN - 50963661; 1995-004723 JF - ASTM Special Technical Publication. STP AU - Corwin, Dennis L A2 - Hoddinott, Keith B. Y1 - 1992 PY - 1992 DA - 1992 SP - 65 EP - 80 PB - American Society for Testing and Materials, Philadelphia, PA VL - 1158 SN - 0066-0558, 0066-0558 KW - soils KW - experimental studies KW - solutions KW - pollutants KW - data processing KW - unsaturated zone KW - pollution KW - adsorption KW - vegetation KW - TETrans KW - ground water KW - models KW - computer programs KW - transport KW - mass balance KW - boron KW - trace elements KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50963661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=A+user-friendly%2C+contaminant+transport+software+package+for+the+preliminary+assessment+of+soil+and+groundwater+contamination%3B+an+overview+of+TETrans&rft.au=Corwin%2C+Dennis+L&rft.aulast=Corwin&rft.aufirst=Dennis&rft.date=1992-01-01&rft.volume=1158&rft.issue=&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Superfund risk assessment in soil contamination studies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 37 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - adsorption; boron; computer programs; data processing; experimental studies; ground water; mass balance; models; pollutants; pollution; soils; solutions; TETrans; trace elements; transport; unsaturated zone; vegetation ER - TY - JOUR T1 - Production of erosion control stone AN - 50961042; 1995-039330 JF - ASTM Special Technical Publication. STP AU - Schauberger, Herman AU - Arrand, Colin O D AU - Major, Jeffrey D A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 113 EP - 121 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - size distribution KW - blasting KW - erosion control KW - durability KW - quarries KW - production KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50961042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Production+of+erosion+control+stone&rft.au=Schauberger%2C+Herman%3BArrand%2C+Colin+O+D%3BMajor%2C+Jeffrey+D&rft.aulast=Schauberger&rft.aufirst=Herman&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=113&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - blasting; durability; erosion control; production; quarries; rock mechanics; size distribution ER - TY - JOUR T1 - Proposed standard for sizes of stone for erosion control AN - 50960718; 1995-039331 JF - ASTM Special Technical Publication. STP AU - Marek, Charles R A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 122 EP - 130 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - standard rocks KW - erosion KW - erosion control KW - soil erosion KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50960718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Proposed+standard+for+sizes+of+stone+for+erosion+control&rft.au=Marek%2C+Charles+R&rft.aulast=Marek&rft.aufirst=Charles&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=122&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 6 N1 - PubXState - PA N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - erosion; erosion control; riprap; rock mechanics; soil erosion; standard rocks ER - TY - JOUR T1 - Riprap quality criteria in standard specifications and engineering guidance AN - 50959906; 1995-039332 JF - ASTM Special Technical Publication. STP AU - Lutton, Richard J AU - Wong, G Sam A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 131 EP - 140 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - absorption KW - frost action KW - erosion control KW - durability KW - abrasion KW - testing KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Riprap+quality+criteria+in+standard+specifications+and+engineering+guidance&rft.au=Lutton%2C+Richard+J%3BWong%2C+G+Sam&rft.aulast=Lutton&rft.aufirst=Richard&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=131&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 9 N1 - PubXState - PA N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - abrasion; absorption; durability; erosion control; frost action; riprap; rock mechanics; testing ER - TY - JOUR T1 - The mechanism of freeze-thaw deterioration of rock in the Great Lakes region AN - 50959849; 1995-039327 JF - ASTM Special Technical Publication. STP AU - Lienhart, David A A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 77 EP - 87 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - North America KW - degradation KW - Great Lakes region KW - frost action KW - durability KW - elastic constants KW - heterogeneity KW - porosity KW - permeability KW - Young's modulus KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=The+mechanism+of+freeze-thaw+deterioration+of+rock+in+the+Great+Lakes+region&rft.au=Lienhart%2C+David+A&rft.aulast=Lienhart&rft.aufirst=David&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=77&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 14 N1 - PubXState - PA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - degradation; durability; elastic constants; frost action; Great Lakes region; heterogeneity; North America; permeability; porosity; rock mechanics; Young's modulus ER - TY - JOUR T1 - Evaluation of limestone and dolomite armor stone durability from observations in the Great Lakes region AN - 50959808; 1995-039328 JF - ASTM Special Technical Publication. STP AU - Erickson, Ronald L A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 88 EP - 93 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - North America KW - Great Lakes region KW - erosion KW - durability KW - stress KW - weathering KW - porosity KW - rock mechanics KW - observations KW - laboratory studies KW - engineering geology KW - testing KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Evaluation+of+limestone+and+dolomite+armor+stone+durability+from+observations+in+the+Great+Lakes+region&rft.au=Erickson%2C+Ronald+L&rft.aulast=Erickson&rft.aufirst=Ronald&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=88&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - durability; engineering geology; erosion; Great Lakes region; laboratory studies; North America; observations; porosity; rock mechanics; stress; testing; weathering ER - TY - JOUR T1 - Fractals, pore potential, and Sphinx limestone durability AN - 50959779; 1995-039323 JF - ASTM Special Technical Publication. STP AU - Yerrapragada, Srinivas S AU - Tambe, Sanjeev S AU - Gauri, K L A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 38 EP - 45 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - limestone KW - archaeology KW - North Africa KW - durability KW - weathering KW - porosity KW - Sphinx KW - rock mechanics KW - measurement KW - Egypt KW - engineering geology KW - sedimentary rocks KW - biomicrite KW - Africa KW - carbonate rocks KW - fractals KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Fractals%2C+pore+potential%2C+and+Sphinx+limestone+durability&rft.au=Yerrapragada%2C+Srinivas+S%3BTambe%2C+Sanjeev+S%3BGauri%2C+K+L&rft.aulast=Yerrapragada&rft.aufirst=Srinivas&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=38&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 13 N1 - PubXState - PA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - Africa; archaeology; biomicrite; carbonate rocks; durability; Egypt; engineering geology; fractals; limestone; measurement; North Africa; porosity; rock mechanics; sedimentary rocks; Sphinx; weathering ER - TY - JOUR T1 - Verification of rock durability evaluation procedures using petroglyphs and Indian rock art AN - 50959236; 1995-039322 JF - ASTM Special Technical Publication. STP AU - Johnson, Terry L AU - Abt, Steven R AU - Fliegel, Myron H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 29 EP - 37 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - physical properties KW - archaeology KW - erosion control KW - durability KW - petroglyphs KW - art KW - Indian rock art KW - testing KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Verification+of+rock+durability+evaluation+procedures+using+petroglyphs+and+Indian+rock+art&rft.au=Johnson%2C+Terry+L%3BAbt%2C+Steven+R%3BFliegel%2C+Myron+H&rft.aulast=Johnson&rft.aufirst=Terry&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=29&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - PA N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - archaeology; art; durability; erosion control; Indian rock art; petroglyphs; physical properties; riprap; rock mechanics; testing ER - TY - JOUR T1 - Durability and specification conformance testing of rock used for erosion control AN - 50959216; 1995-039319 JF - ASTM Special Technical Publication. STP A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 140 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - engineering geology KW - symposia KW - erosion control KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Durability+and+specification+conformance+testing+of+rock+used+for+erosion+control&rft.au=&rft.aulast=&rft.aufirst=&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - PubXState - PA N1 - Document feature - illus. incl. tables N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - engineering geology; erosion control; rock mechanics; symposia ER - TY - JOUR T1 - The influence of fabric and composition on the durability of Appalachian shales AN - 50959133; 1995-039321 JF - ASTM Special Technical Publication. STP AU - Vallejo, Luis E AU - Welsh, Robert A, Jr AU - Lovell, C William AU - Robinson, Michael K A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 15 EP - 28 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - North America KW - pressure KW - X-ray diffraction data KW - erosion KW - shale KW - durability KW - Appalachians KW - Eastern U.S. KW - rock mechanics KW - engineering geology KW - sedimentary rocks KW - pore pressure KW - fabric KW - clastic rocks KW - slabbing KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50959133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=The+influence+of+fabric+and+composition+on+the+durability+of+Appalachian+shales&rft.au=Vallejo%2C+Luis+E%3BWelsh%2C+Robert+A%2C+Jr%3BLovell%2C+C+William%3BRobinson%2C+Michael+K&rft.aulast=Vallejo&rft.aufirst=Luis&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=15&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - PA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - Appalachians; clastic rocks; durability; Eastern U.S.; engineering geology; erosion; fabric; North America; pore pressure; pressure; rock mechanics; sedimentary rocks; shale; slabbing; United States; X-ray diffraction data ER - TY - JOUR T1 - Petrographic examination of large stone durability AN - 50958540; 1995-039329 JF - ASTM Special Technical Publication. STP AU - Wong, G S AU - Lutton, R J A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 94 EP - 109 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - riprap KW - X-ray diffraction data KW - frost action KW - durability KW - petrography KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50958540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Petrographic+examination+of+large+stone+durability&rft.au=Wong%2C+G+S%3BLutton%2C+R+J&rft.aulast=Wong&rft.aufirst=G&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=94&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 4 N1 - PubXState - PA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - durability; frost action; petrography; riprap; rock mechanics; X-ray diffraction data ER - TY - JOUR T1 - Insoluble residue of carbonate rock and its applications to the durability assessment of rock riprap AN - 50957668; 1995-039325 JF - ASTM Special Technical Publication. STP AU - Fisher, Henry H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 62 EP - 68 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - Monroe County Ohio KW - Pennsylvanian KW - Paleozoic KW - durability KW - Noble County Ohio KW - Carboniferous KW - Permian KW - rock mechanics KW - measurement KW - riprap KW - sedimentary rocks KW - insoluble residues KW - applications KW - carbonate rocks KW - southeastern Ohio KW - Ohio KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Insoluble+residue+of+carbonate+rock+and+its+applications+to+the+durability+assessment+of+rock+riprap&rft.au=Fisher%2C+Henry+H&rft.aulast=Fisher&rft.aufirst=Henry&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=62&rft.isbn=0803114893&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 7 N1 - PubXState - PA N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - applications; carbonate rocks; Carboniferous; durability; insoluble residues; measurement; Monroe County Ohio; Noble County Ohio; Ohio; Paleozoic; Pennsylvanian; Permian; riprap; rock mechanics; sedimentary rocks; southeastern Ohio; United States ER - TY - JOUR T1 - A mill abrasion test for wear resistance of armour stone AN - 50957527; 1995-039324 JF - ASTM Special Technical Publication. STP AU - Latham, John-Paul A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 46 EP - 61 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - strength KW - durability KW - abrasion KW - testing KW - fabric KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=A+mill+abrasion+test+for+wear+resistance+of+armour+stone&rft.au=Latham%2C+John-Paul&rft.aulast=Latham&rft.aufirst=John-Paul&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=46&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 13 N1 - PubXState - PA N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - abrasion; durability; fabric; rock mechanics; strength; testing ER - TY - JOUR T1 - Bureau of Reclamation experience in testing of riprap for erosion control of embankment dams AN - 50957496; 1995-039320 JF - ASTM Special Technical Publication. STP AU - Farrar, J A A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 3 EP - 14 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - embankments KW - rockfill dams KW - reservoirs KW - U. S. Bureau of Reclamation KW - exploration KW - riprap KW - engineering geology KW - controls KW - physical properties KW - Western U.S. KW - erosion control KW - dams KW - design KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50957496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Bureau+of+Reclamation+experience+in+testing+of+riprap+for+erosion+control+of+embankment+dams&rft.au=Farrar%2C+J+A&rft.aulast=Farrar&rft.aufirst=J&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=3&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 15 N1 - PubXState - PA N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - controls; dams; design; embankments; engineering geology; erosion control; exploration; physical properties; reservoirs; riprap; rockfill dams; U. S. Bureau of Reclamation; United States; Western U.S. ER - TY - JOUR T1 - Environmental testing of rock used as erosion protection in arid environments AN - 50956930; 1995-039326 JF - ASTM Special Technical Publication. STP AU - Duffy, Dennis M AU - Hatzell, Hilda H A2 - McElroy, Charles H. A2 - Lienhart, David A. Y1 - 1992 PY - 1992 DA - 1992 SP - 69 EP - 76 PB - American Society for Testing and Materials, Philadelphia, PA SN - 0066-0558, 0066-0558 KW - United States KW - engineering geology KW - terrestrial environment KW - erosion control KW - durability KW - arid environment KW - Arizona KW - testing KW - diurnal variations KW - rock mechanics KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50956930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASTM+Special+Technical+Publication.+STP&rft.atitle=Environmental+testing+of+rock+used+as+erosion+protection+in+arid+environments&rft.au=Duffy%2C+Dennis+M%3BHatzell%2C+Hilda+H&rft.aulast=Duffy&rft.aufirst=Dennis&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=69&rft.isbn=0803114893&rft.btitle=&rft.title=ASTM+Special+Technical+Publication.+STP&rft.issn=00660558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Durability and specification conformance testing of rock used for erosion control N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1995-01-01 N1 - Number of references - 3 N1 - PubXState - PA N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASTTA8 N1 - SubjectsTermNotLitGenreText - arid environment; Arizona; diurnal variations; durability; engineering geology; erosion control; rock mechanics; terrestrial environment; testing; United States ER - TY - JOUR T1 - Our agricultural landscape; improving image preservation and end-user image access through laser disk technology AN - 50380114; 1993-002370 JF - Abstracts with Programs - Geological Society of America AU - Fusonie, Alan AU - Young, Ronald AU - Myers, Richard AU - Anonymous Y1 - 1992 PY - 1992 DA - 1992 SP - 167 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - data processing KW - agriculture KW - laser disks KW - landscapes KW - preservation KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50380114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Our+agricultural+landscape%3B+improving+image+preservation+and+end-user+image+access+through+laser+disk+technology&rft.au=Fusonie%2C+Alan%3BYoung%2C+Ronald%3BMyers%2C+Richard%3BAnonymous&rft.aulast=Fusonie&rft.aufirst=Alan&rft.date=1992-01-01&rft.volume=24&rft.issue=7&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1992 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - agriculture; data processing; landscapes; laser disks; preservation; United States ER - TY - JOUR T1 - Effect of logging on subsurface pipeflow and erosion; coastal Northern California, USA AN - 50315660; 1993-035793 JF - IAHS-AISH Publication AU - Ziemer, R R A2 - Walling, D. E. A2 - Davies, T. R. A2 - Hasholt, B. Y1 - 1992 PY - 1992 DA - 1992 SP - 187 EP - 197 PB - International Association of Hydrological Sciences, [Louvain] VL - 209 SN - 0144-7815, 0144-7815 KW - United States KW - California KW - pressure KW - sediment transport KW - erosion KW - pore pressure KW - drainage basins KW - suspended materials KW - Northern California KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50315660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Effect+of+logging+on+subsurface+pipeflow+and+erosion%3B+coastal+Northern+California%2C+USA&rft.au=Ziemer%2C+R+R&rft.aulast=Ziemer&rft.aufirst=R&rft.date=1992-01-01&rft.volume=209&rft.issue=&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Erosion, debris flows and environment in mountain regions N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 21 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - California; drainage basins; erosion; Northern California; pore pressure; pressure; sediment transport; suspended materials; United States ER - TY - JOUR T1 - Developing a floodplain sand and gravel mine reclamation program in the Amite River basin of Louisiana AN - 50216033; 1994-046690 JF - ASAE Publication AU - Vernon, Robert D AU - Autin, Whitney J AU - Mossa, Joann A2 - Younos, Tamim A2 - Diplas, P. A2 - Mostaghimi, S. Y1 - 1992 PY - 1992 DA - 1992 SP - 240 EP - 245 PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 14-92 SN - 0197-1662, 0197-1662 KW - United States KW - floodplains KW - reclamation KW - Denham Springs Louisiana KW - Gulf Coastal Plain KW - sands KW - gravel deposits KW - hydrographs KW - fluvial features KW - environmental geology KW - Louisiana KW - Amite River KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50216033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ASAE+Publication&rft.atitle=Developing+a+floodplain+sand+and+gravel+mine+reclamation+program+in+the+Amite+River+basin+of+Louisiana&rft.au=Vernon%2C+Robert+D%3BAutin%2C+Whitney+J%3BMossa%2C+Joann&rft.aulast=Vernon&rft.aufirst=Robert&rft.date=1992-01-01&rft.volume=14-92&rft.issue=&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=ASAE+Publication&rft.issn=01971662&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Proceedings of the International symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 4 N1 - PubXState - MI N1 - Document feature - 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Amite River; Denham Springs Louisiana; environmental geology; floodplains; fluvial features; gravel deposits; Gulf Coastal Plain; hydrographs; Louisiana; reclamation; sands; United States ER - TY - JOUR T1 - Estimating flood damage to vegetated deep soil spillways AN - 25898871; 2001-33-001647 (CE); 0126589 (EN) AB - Although design guides are available, there is presently no procedure available for predicting damage and/or failure of a vegetated earth spillway subjected to flood flow conditions. The limited data available for vegetated spillways constructed in deep soil deposits are examined and shown to have sufficient consistency to allow calibration of simplified relations for use in damage estimation for spillways having similar geologic and hydraulic conditions. The nature of the data and the assumptions underlying these simplifications are discussed. Application of the relations with appropriate engineering judgment provides a means of damage and/or failure prediction until more analytic procedures become available. JF - APPL ENG AGRIC AU - Temple, D M AD - USDA-Agricultural Research Service, Stillwater, OK, USA PY - 1992 SP - 237 EP - 242 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 2 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Spillways KW - Damage KW - Floods KW - Failure KW - Hydraulics KW - Construction KW - Deposits KW - Geology KW - Calibration KW - Article KW - EE 632:HYDRAULICS, PNEUMATICS AND RELATED EQUIPMENT KW - EE 405:CONSTRUCTION AND EQUIPMENT AND METHODS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 442:FLOOD CONTROL KW - EE 441:DAMS AND RESERVOIRS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25898871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=APPL+ENG+AGRIC&rft.atitle=Estimating+flood+damage+to+vegetated+deep+soil+spillways&rft.au=Temple%2C+D+M&rft.aulast=Temple&rft.aufirst=D&rft.date=1992-01-01&rft.volume=8&rft.issue=2&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=APPL+ENG+AGRIC&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Real-time irrigation scheduling of cotton with an automated pan evaporation system. AN - 25845507; 0036849 (EN); 0036849 (CI) AB - High frequency irrigation control necessitates real-time monitoring of soil water, plant water status or atmospheric evaporative demand. The research objective was to determine the suitability of real-time control of subsurface drip irrigation using automated evaporation pan measurements. Hourly electronic measurement of water loss from an evaporation pan was a critical feedback control element in the irrigation scheduling of a high frequency subsurface drip system (SDI) used to irrigate cotton. The water level in the class 'A' pan was monitored continuously using a micrologger to measure the output of the electronic water level sensor. The crop water needs were calculated by multiplying the evaporation from the pan by a pan and crop coefficient. When the calculated water need was equal to or greater than 2 mm (0.08 in.) in 1990 and 1 mm (0.04 in.) in 1991, the micrologger automatically activated the irrigation system. Data were automatically transmitted daily to the station computer via telephone. Water was added each night to the pan automatically to refill the pan to a constant level. After installation and testing, the control system worked automatically without manual intervention for two growing seasons. JF - Applied Engineering in Agriculture AU - Phene, C J AU - DeTar, W R AU - Clark, DA AD - USDA-Agricultural Research Service-WMRL, Fresno, CA, USA PY - 1992 SP - 787 EP - 793 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 6 SN - 0883-8542, 0883-8542 KW - Environmental Engineering (EN); Computer & Information Systems (CI) KW - Scheduling KW - Cotton KW - Evaporation KW - Equipment KW - Measurements KW - Automation KW - Control systems KW - Article KW - EE 723.5:COMPUTER APPLICATIONS (EN) KW - EE 821.3:Agricultural Methods KW - EE 821.3:AGRICULTURAL METHODS KW - EE 723.5:Computer Applications (CI) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25845507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Infestation+and+dispersal+of+Noctuidonema+guyanense+%28Nematoda%3A+Aphelenchoididae%29+on+Spodoptera+frugiperda+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Rogers%2C+CE%3BMarti%2C+OG+Jr&rft.aulast=Rogers&rft.aufirst=CE&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Knowledge-based system for environmental design of stream modifications. AN - 25683067; 2001-33-001633 (CE); 0005861 (EN) AB - A knowledge-based, microcomputer software package was developed for preliminary selection of environmental features for use with streambank protection projects, straightened and enlarged channels, and flood control levees. The system contains a module for each of the three major alteration types: bank protection, levees, and channels. Each module queries the user for information regarding environmental factors to be protected and a description of the project setting, with the internal logic configured to minimize the number of questions asked. System output consists of a list of environmental design features suitable for the specific location and descriptive information. Help screens explain why certain questions are asked, define terms, and suggest responses or sources of information. At the conclusion of a consultation, additional help screens may be displayed that provide a discussion of each recommended feature, a list of existing projects that incorporate the feature, and a bibliography. The streambank protection module screens a master list of 20 methods based on the dominant erosion mechanisms operative at the project site, and the channel module performs a rough channel stability assessment using regime equations. The latest version of the software aids in feature selection, but does not design channel alterations. However, the software interfaces with routines that perform basic hydraulic computations (e.g., composite roughness, normal depth, riprap size) for steady flow in order to allow users to quickly evaluate feasibility of in-channel environmental features. A survey of users indicated that the package has been used by entry-level and experienced professionals to perform a limited range of specialized tasks. Seventy-four percent of the users described the software as a useful instrument for planning and preliminary design. JF - Applied Engineering in Agriculture AU - Shields, FD Jr AU - Aziz, N M AD - USDA-Natl Sedimentation Lab, Oxford, MS, USA PY - 1992 SP - 553 EP - 562 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 8 IS - 4 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Computer programs KW - Design engineering KW - Levees KW - Streambanks KW - Selection KW - Position (location) KW - Expansion KW - Hydraulics KW - Modification KW - Stability KW - Banks KW - Preliminary designs KW - Logic KW - Flood control KW - Mathematical analysis KW - Erosion mechanisms KW - Bibliographies KW - Output KW - Realizability KW - Article KW - EE 723.4.1:EXPERT SYSTEMS KW - EE 631.1:FLUID FLOW (GENERAL) (EN) KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25683067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Engineering+in+Agriculture&rft.atitle=Knowledge-based+system+for+environmental+design+of+stream+modifications.&rft.au=Shields%2C+FD+Jr%3BAziz%2C+N+M&rft.aulast=Shields&rft.aufirst=FD&rft.date=1992-01-01&rft.volume=8&rft.issue=4&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Applied+Engineering+in+Agriculture&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - CONF T1 - Harvesting small trees and forest residues. AN - 25664610; 0037057 (EN); 0037057 (CI) AB - Eight countries collaborated and shared technical information on the harvesting of small trees and forest residues in a three year program. Proceedings and reports from workshops and reviews are summarized in a review of activities and harvesting systems of the participating countries. Four databases were developed for harvesting and transportation of these materials. JF - Biomass and Bioenergy AU - Stokes, Bryce J Y1 - 1992 PY - 1992 DA - 1992 SP - 131 EP - 147 VL - 2 IS - 1-6 KW - Environmental Engineering (EN); Computer & Information Systems (CI) KW - Harvesting KW - Database systems KW - Wood fuels KW - Renewable energy resources KW - Transportation KW - EE 821.4:AGRICULTURAL PRODUCTS (EN) KW - EE 525.1:Energy Resources KW - EE 723.3:Database Systems KW - EE 821.4:Agricultural Products KW - EE 811.2:Wood and Wood Products (CI) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25664610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Biomass+and+Bioenergy&rft.atitle=Harvesting+small+trees+and+forest+residues.&rft.au=Stokes%2C+Bryce+J&rft.aulast=Stokes&rft.aufirst=Bryce&rft.date=1992-01-01&rft.volume=2&rft.issue=1-6&rft.spage=131&rft.isbn=&rft.btitle=&rft.title=Biomass+and+Bioenergy&rft.issn=09619534&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Comparison of Photography, Videography, and SPOT-1 HRV Digital Observations for Salinity Assessment in the San Joaquin Valley of California AN - 19245396; 9310653 AB - Information on the extent and severity of soil salinity is needed to engineer water-delivery and drainage improvements, and to monitor the effectiveness of reclamation efforts. Procedures to help meet these needs were developed from soil salinity, plant height and cover measurements, and digitized color/infrared photography, narrow-band videography, and Satellite Positioning and Tracking 1 (SPOT-1) high-resolution visible (HRV) scanner observations for four salt-affected cotton fields in the San Joaquin Valley (California). Unsupervised classification procedures were used to develop seven-category spectral maps by field. Regression equations were developed from the salinity measurements in the surface 30 cm and photographic spectral data at 100-200 sample sites per field for estimating the soil salinity throughout the field in that depth interval. These equations were applied to estimate the salinity of each of the approximately 100,000 pixels per field, and the salinity categories corresponding to the spectral ones were mapped. The spectral-classification maps and the estimated-salinity maps corresponded well, as documented by a coincidence-matrix analysis that determined the fraction of pixels classified the same in both approaches. The findings demonstrate that spectral observations which sense plant growth responses can help determine the occurrence and severity of soil salinity and argue for salinity surveys during the crop, rather than the fallow, season. Higher correlations were found for the photography than for the videography and HRV observations. The HRV sampling interval (20 m) was basically incompatible with the ground sampling pattern. However, any of the systems could be used to assess salinity or monitor reclamation. (See also W94-00972) (Author's abstract) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 268-282. 3 fig, 7 tab, 22 ref. AU - Wiegand, CL AU - Rhoades, J D AU - Everitt, J H AU - Escobar, DE AD - USDA, ARS, Remote Sensing Research Unit, 2413 E. Highway 83, Weslaco, TX 78596-8344 Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Photography KW - *Remote sensing KW - *Saline soils KW - *San Joaquin Valley KW - *Satellite technology KW - *Soil surveys KW - *Videography KW - California KW - Drainage KW - Irrigation KW - Mapping KW - Regression analysis KW - Soil classification KW - Soil restoration KW - Spectral analysis KW - Vegetation KW - SW 1030:Use of water of impaired quality KW - SW 5040:Data acquisition KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19245396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Development+of+the+phytophagous+arthropod+community+on+apple+as+affected+by+orchard+management.&rft.au=Brown%2C+M+W%3BWelker%2C+W+V&rft.aulast=Brown&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Wetland Restoration, Enhancement, or Creation: A New Chapter in the USDA-SCS Engineering Field Handbook AN - 19245028; 9310643 AB - The Soil Conservation Service (SCS) developed a new chapter for the SCS Field Handbook in response to a growing national emphasis on wetland restoration. The chapter grew out of a revision of the chapter on dikes, levees and wetland development. The chapter is considered to be a technical document written to provide field personnel with a guide to planning, design, implementation, maintenance, and monitoring of wetland restoration, creation, and enhancement projects. The wetland functions addressed in the chapter are: (1) education and research; (2) erosion control; (3) fish and shellfish production or habitat; (4) flood storage; (5) flood conveyance; (6) food production; (7) habitat for threatened and endangered species; (8) historic, cultural and archeological aspects; (9) open space and aesthetic quality; (10) recreation; (11) sediment control; (12) timber production; (13) water supply; (14) water quality improvement; and (15) wildlife habitat. Surface feature surveys should include: (1) a location sketch showing property boundaries, bench marks, permanent features, orientation, and wetland location; (2) profiles and cross sections describing typical or critical parameters of existing conditions; and (3) location and elevation of necessary soil borings. Major factors in the water budget of the wetland include: precipitation, storm water runoff, evaporation and transpiration, base surface flow, groundwater flow, pumped water, tidal flows, surface water storage, and pore-water storage. Vegetative considerations include: goals and objectives, water supply, nature and condition of the substrate, water depth, slope, length of the growing season, surrounding habitats and land uses, wind and wave energies, currents and velocities, and cost. (See also W94-00972) (Brunone-PTT) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 170-175. 1 ref. AU - Boyd, W H AU - Gray, R L AD - Midwest National Technical Center, USDA Soil Conservation Service, Lincoln, Nebraska Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Department of Agriculture KW - *Environmental protection KW - *Handbooks KW - *Soil Conservation Service KW - *Wetland creation KW - *Wetland enhancement KW - *Wetland restoration KW - Aquatic plants KW - Erosion control KW - Hydrologic budget KW - Sediment control KW - Surveys KW - Water supply KW - Wildlife habitats KW - SW 3070:Water quality control KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19245028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Wetland+Restoration%2C+Enhancement%2C+or+Creation%3A+A+New+Chapter+in+the+USDA-SCS+Engineering+Field+Handbook&rft.au=Boyd%2C+W+H%3BGray%2C+R+L&rft.aulast=Boyd&rft.aufirst=W&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Twelve Years of Abandoned Mineland Reclamation Activities by the United States Department of Agriculture-Soil Conservation Service in Southwest Pennsylvania AN - 19244767; 9310649 AB - One-sixth of all abandoned coal-mine land in the United States is in the twelve southwestern counties of Pennsylvania. The Surface Mining Control Act of 1977 established several programs to reclaim abandoned coal mine land, one of which is the Rural Abandoned Mine Program. Sites reclaimed to date have all been Priority I sites, defined as those which present an imminent danger to life and property. 136 sites totalling 1137 acres (460 ha) have been reclaimed in the twelve counties over the last 12 years. One of the biggest problems associated with black gob piles is their potential toxicity to vegetation. A soil covering has been used on two of the 136 sites. Black locust and arnot bristly locust have been propagated on sites from seed during the vegetation phase of reclamation. During construction, both temporary and permanent measures for the control of erosion and sedimentation are installed, including: straw-bale barriers, filter-fabric fence, sediment basins and rock filter dams. Before reconstruction, many of the sites had high rates of sediment leaving the site. Surface-water control practices are used to stabilize the soil material and reduce the amount of gully erosion; examples are diversions, vegetated waterways, and rock-lined waterways. Mine openings and air shafts may discharge water and poorly-oxygenated air, and 183 openings have been closed to prevent access. Wetlands have been constructed on 11 sites to mitigate acid mine drainage. The average total cost of reclamation is approximately 9500 dollars per acre. (See also W94-00972) (Brunone-PTT) JF - IN: Land Reclamation: Advances in Research & Technology. ASAE Publication 14-92. American Society of Agricultural Engineers, St. Joseph, Michigan. 1992. p 230-239. 10 fig, 6 ref. AU - Bogovich, WM AD - Area III, USDA-SCS, Somerset Area Office, Somerset, Pennsylvania Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Coal mining effects KW - *Department of Agriculture KW - *Environmental restoration KW - *Land reclamation KW - *Mining KW - *Pennsylvania KW - *Soil Conservation Service KW - Acid mine drainage KW - Costs KW - Erosion control KW - Hazards KW - Legislation KW - Sediment control KW - Soil stabilization KW - Strip mines KW - Surface Mining Control Act KW - Toxicity KW - Vegetation establishment KW - Waste capping KW - Wetland construction KW - SW 3070:Water quality control KW - SW 2080:Watershed protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19244767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Twelve+Years+of+Abandoned+Mineland+Reclamation+Activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+WM&rft.aulast=Bogovich&rft.aufirst=WM&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Using USDA Soil Conservation Service County Soils Data with a Geographic Information System AN - 19139066; 9303632 AB - A county level soil data set for use in geographic information systems is being developed by the US Department of Agriculture Soil Conservation Service. In addition, attribute information will be developed to provide information that is based on soil characteristics. Santa Rosa County, Florida soil survey was used as a sample data set to illustrate the use of the data. Interpretations on severe limitations for septic tank absorption fields and flooding frequency were developed for the county. This is a small sample of the types of information that are available. The main difficulties encountered in using the data are the size of the spatial and attribute information and the identification of needed information from the attribute tables. (See also W93-03621) (Author's abstract) JF - IN: Geographic Information Systems (GIS) and Mapping--Practices and Standards. STP 1126, 1992. American Society for Testing and Materials, Philadelphia, PA. p 115-121, 3 fig, 3 ref, append. AU - Franchek, R J AU - Biggam, P F AD - Soil Conservation Service, National Cartographic Center, PO Box 6567, Fort Worth, TX Y1 - 1992 PY - 1992 DA - 1992 KW - Water Resources Abstracts KW - *Data interpretation KW - *Digital map data KW - *Florida KW - *Geographic information systems KW - *Santa Rosa County KW - *Soil Conservation Service KW - *Soil properties KW - Data acquisition KW - Flood frequency KW - Septic tanks KW - Surveys KW - SW 0845:Water in soils KW - SW 5080:Evaluation, processing and publication UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19139066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Using+USDA+Soil+Conservation+Service+County+Soils+Data+with+a+Geographic+Information+System&rft.au=Franchek%2C+R+J%3BBiggam%2C+P+F&rft.aulast=Franchek&rft.aufirst=R&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Susceptibility of porcine intestine to pilus-mediated adhesion by some isolates of piliated enterotoxigenic Escherichia coli increases with age AN - 16966426; 3619879 AB - Two porcine isolates of enterotoxigenic Escherichia coli (ETEC) (serogroup O157 and O141) derived from fatal cases of postweaning diarrhea and lacking K88, K99, F41, and 987P pili (4P super(-) ETEC) were tested for adhesiveness to small-intestinal epithelia of pigs of different ages. Neither strain adhered to isolated intestinal brush borders of newborn (1-day-old) pigs in the presence of mannose. However, mannose-resistant adhesion occurred when brush borders from 10-day- and 3- and 6-week-old pigs were used. Electron microscopy revealed that both strains produced fine (3.5-nm) and type 1 pili at 37 degree C but only type 1 pili at 18 degree C. Mannose-resistant in vitro adhesion to brush borders of older pigs correlated with the presence of fine pili. These strains produced predominantly fine pili in ligated intestinal loops of both older and newborn pigs, but adherence was greater in loops in older pigs. Immunoelectron microscopic studies, using antiserum raised against piliated bacteria and absorbed with nonpiliated bacteria, of samples from brush border adherence studies revealed labelled appendages between adherent bacteria and intestinal microvilli. Orogastric inoculation of pigs weaned at 10 and 21 days of age indicated significantly higher levels of adhesion by the ETEC to the ileal epithelia of older pigs than to that of younger ones. We suggest that small-intestinal adhesion and colonization by these ETEC isolates is dependent on receptors that develop progressively with age during the first 3 weeks after birth. Furthermore, our data are consistent with the hypothesis that the fine pili described mediate intestinal adhesion by the 4P super(-) ETEC strains studied. JF - Infection and Immunity AU - Nagy, B AU - Casey, T A AU - Whipp, S C AU - Moon, H W AD - Physiopathol. Res. Unit, Natl. Anim. Dis. Cent., USDA Agric. Res. Serv., Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1258 EP - 1294 VL - 60 IS - 4 SN - 0019-9567, 0019-9567 KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - diarrhea KW - Escherichia coli KW - role KW - cell adhesion KW - electron microscopy KW - pili KW - brush border membranes KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16966426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Susceptibility+of+porcine+intestine+to+pilus-mediated+adhesion+by+some+isolates+of+piliated+enterotoxigenic+Escherichia+coli+increases+with+age&rft.au=Nagy%2C+B%3BCasey%2C+T+A%3BWhipp%2C+S+C%3BMoon%2C+H+W&rft.aulast=Nagy&rft.aufirst=B&rft.date=1992-01-01&rft.volume=60&rft.issue=4&rft.spage=1258&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; brush border membranes; cell adhesion; pili; role; diarrhea; electron microscopy ER - TY - JOUR T1 - Surface proteins of two aflatoxin-producing isolates of Aspergillus flavus and Aspergillus parasiticus mycelia. 1. A comparative immunochemical profile AN - 16950021; 3615950 AB - The surface antigens from Aspergillus flavus and Aspergillus parasiticus mycelia were characterized by immunochemical analysis on agarose gels. Results of immunoabsorption experiments showed that at least two antigens present in A. flavus were not detected in A. parasiticus. Semiquantitative and qualitative assays by line and crossed immunoelectrophoresis showed extreme heterogeneity in precipitin formation between the two fungi. A major antigen in A. parasiticus appeared in trace amounts in A. flavus; that antigen might be useful as a chemical marker in species identification studies. The avidity of antibody responses varied between the two isolates but the homology of the profiles support their close phylogenetic relationship as members of the same genus. JF - Journal of Agricultural and Food Chemistry AU - Neucere, J N AU - Ullah, AHJ AU - Cleveland, TE AD - South. Reg. Res. Cent., ARS-USDA, P.O. Box 19687, New Orleans, LA 70179, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1610 EP - 1612 VL - 40 IS - 9 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - cell surface KW - proteins KW - Aspergillus parasiticus KW - A 01002:Acids, amino acids, peptides & proteins KW - K 03025:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16950021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Surface+proteins+of+two+aflatoxin-producing+isolates+of+Aspergillus+flavus+and+Aspergillus+parasiticus+mycelia.+1.+A+comparative+immunochemical+profile&rft.au=Neucere%2C+J+N%3BUllah%2C+AHJ%3BCleveland%2C+TE&rft.aulast=Neucere&rft.aufirst=J&rft.date=1992-01-01&rft.volume=40&rft.issue=9&rft.spage=1610&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; Aspergillus parasiticus; cell surface; proteins ER - TY - JOUR T1 - Cutinase production by Streptomyces spp. AN - 16945749; 3617794 AB - Forty-five Streptomyces strains, including representatives of the plant pathogens S. acidiscabies, S. scabies, and S. ipomoea, were screened for ability to produce enzymes (cutinases) capable of hydrolyzing the insoluble plant biopolyester cutin. Initially, all strains were tested for production of extracellular esterase in liquid shake (250 rpm) cultures at room temperature in defined (glycerol-asparagine) or complex (tryptone-yeast extract with or without addition of mannitol) broth media supplemented with either tomato or apple cutin. Esterase activity was determined by a spectrophotometric assay utilizing the model substrate p-nitrophenyl butyrate. Of the five strains exhibiting highest esterase activity, four (S. acidiscabies ATCC 49003, S. "scabies" ATCC 15485 and IMRU 3018, and S. badius ATCC 19888) were confirmed to produce enzymes with cutin-degrading activity (cutinases). Confirmation of extracellular cutinase production was accomplished by use of a new high-performance liquid chromatography method for separation and quantification of released cutin monomers. Monomer identification was confirmed by GC/MS analyses. Cutinase production was induced 2- to 17-fold by inclusion of cutin in the media. To our knowledge this constitutes the first report of cutinase production by Streptomyces spp. other than S. scabies. JF - Current Microbiology AU - Fett, W F AU - Gerard, H C AU - Moreau, R A AU - Osman, S F AU - Jones, LE AD - USDA-ARS-ERRC, Plant Sci. Res. Unit, 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 165 EP - 171 VL - 25 IS - 3 SN - 0343-8651, 0343-8651 KW - cutin KW - cutinase KW - effects on KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Streptomyces KW - extracellular enzymes KW - production KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16945749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Cutinase+production+by+Streptomyces+spp.&rft.au=Fett%2C+W+F%3BGerard%2C+H+C%3BMoreau%2C+R+A%3BOsman%2C+S+F%3BJones%2C+LE&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=25&rft.issue=3&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - extracellular enzymes; production; Streptomyces ER - TY - JOUR T1 - When it's hot, it's hot... or maybe it's not! (Surface flaming may not portend extensive soil heating) AN - 16872473; 3575257 AB - Fire effects on a plant community, soil, and air are not apparent when judged only by surface fire intensity. The fire severity or fire impact can be described by the temperatures reached within the forest floor and the duration of heating experienced in the vegetation, forest floor, and underlying mineral soil. Temporal distributions of temperatures illustrate heat flow in duff and mineral soil in three instrumented plots: two with slash fuel over moist duff and one with litter fuel over dry duff. Fires in the two slash fuel plots produced substantial flame lengths but minimal heating in the underlying mineral soil. In contrast, smoldering combustion in the dry duff plot produced long duration heating with nearly complete duff consumption and lethal temperatures at the mineral soil surface. Moisture content of duff and soil were key variables for determining fire impact on the forest floor. JF - International Journal of Wildland Fire AU - Hartford, R A AU - Frandsen, W H AD - USDA, For. Serv., Intermountain Res. Stn., Intermountain Fire Sci. Lab., P.O. Box 8089, Missoula, MT 59807, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 144 VL - 2 IS - 3 SN - 1049-8001, 1049-8001 KW - wildfire KW - temporal distributions KW - smoldering KW - Health & Safety Science Abstracts KW - vegetation KW - USA, Rocky Mts. KW - temperature KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16872473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=When+it%27s+hot%2C+it%27s+hot...+or+maybe+it%27s+not%21+%28Surface+flaming+may+not+portend+extensive+soil+heating%29&rft.au=Hartford%2C+R+A%3BFrandsen%2C+W+H&rft.aulast=Hartford&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Rocky Mts.; temperature; vegetation ER - TY - JOUR T1 - Responses of breeding bald eagles, Haliaeetus leucocephalis, to human activities in Northcentral Michigan AN - 16809620; 3551055 AB - To characterize disturbance and analyze eagle response, we recorded 714 events of potentially disturbing human activity near six pairs of Bald Eagles (Haliaeetus leucocephalus) breeding in northcentral Michigan in 1990. Vehicles and pedestrians elicited the highest response frequencies, but aircraft and aquatic activities were the most common. Magnitude of response was inversely proportional to median distance-to-disturbance. Seventy-five percent of all alert and flight responses occurred when activity was within 500 m and 200 m, respectively. Adults responded more frequently than nestlings, and at greater distances-to-disturbance when perched away from nests. May was the peak month for human activity, most of which occurred on weekends (60%) and after noon (72%). Classification tree (CART) models are used to assess disturbance-specific response frequencies and to formulate management considerations. JF - Canadian field-naturalist. Ottawa ON AU - Grubb, T G AU - Bowerman, W W AU - Giesy, J P AU - Dawson, G A AD - USDA Forest Serv., Rocky Mtn. Forest & Range Exp. Stn., 2500 S. Pine Knoll Dr., Flagstaff, AZ 86001, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 443 EP - 453 VL - 106 IS - 4 SN - 0008-3550, 0008-3550 KW - Haliaeetus leucocephalis KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - USA, Michigan KW - aquatic birds KW - breeding KW - anthropogenic factors KW - environmental conditions KW - mathematical models KW - Freshwater KW - behavioural responses KW - Q5 08523:Conservation, wildlife management and recreation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16809620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+field-naturalist.+Ottawa+ON&rft.atitle=Responses+of+breeding+bald+eagles%2C+Haliaeetus+leucocephalis%2C+to+human+activities+in+Northcentral+Michigan&rft.au=Grubb%2C+T+G%3BBowerman%2C+W+W%3BGiesy%2C+J+P%3BDawson%2C+G+A&rft.aulast=Grubb&rft.aufirst=T&rft.date=1992-01-01&rft.volume=106&rft.issue=4&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Canadian+field-naturalist.+Ottawa+ON&rft.issn=00083550&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - aquatic birds; breeding; anthropogenic factors; environmental conditions; mathematical models; behavioural responses; USA, Michigan; Freshwater ER - TY - JOUR T1 - A simple and efficient method for the oligodeoxyribonucleotide-directed mutagenesis of double-stranded plasmid DNA AN - 16775822; 3533168 AB - A method for the oligodeoxyribonucleotide-directed mutagenesis of double-stranded DNA without the necessity for phenotypic selection is described. Plasmids denatured with alkali and purified by adsorption to and elution from nitrocellulose have single-stranded regions where primers can hybridize and serve as templates for a T7 DNA polymerase-catalyzed synthesis of complementary mutant DNA strands. When this procedure was carried out such that the original nonmutant strand contained uracil, mutation frequencies of between 30% and 40% were obtained. The technique has been used to generate mutant genes in plasmids of a wide variety of sizes. The largest plasmid manipulated and successfully mutagenized was 22 kb. The method is rapid and efficient and is not dependent upon either f1 phage vectors or the presence of restriction sites in the vicinity of the sequence targeted for mutation. JF - Gene AU - Jung, R AU - Scott, M P AU - Oliveira, LO AU - Nielsen, N C AD - USDA/ARS, Agron. Dep., Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 17 EP - 24 VL - 121 IS - 1 SN - 0378-1119, 0378-1119 KW - nitrocellulose KW - oligodeoxyribonucleotides KW - DNA-directed DNA polymerase KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - mutagenesis KW - DNA KW - plasmids KW - phage T7 KW - methodology KW - J 02725:DNA KW - N 14610:Occurrence, isolation & assay UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16775822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gene&rft.atitle=A+simple+and+efficient+method+for+the+oligodeoxyribonucleotide-directed+mutagenesis+of+double-stranded+plasmid+DNA&rft.au=Jung%2C+R%3BScott%2C+M+P%3BOliveira%2C+LO%3BNielsen%2C+N+C&rft.aulast=Jung&rft.aufirst=R&rft.date=1992-01-01&rft.volume=121&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - phage T7; plasmids; DNA; mutagenesis; methodology ER - TY - JOUR T1 - Spore and geosmin production by Streptomyces tendae on several media AN - 16762177; 3527619 AB - Geosmin (1,10-trans-dimethyl-trans-9-decalol) is produced by several microbial taxa and can impart musty/earthy off-flavors to food, potable water, and aquaculture-raised fish. The bacterium Streptomyces tendae (ATCC 31160) was grown on Hickey-Tresner (HT), Streptomyces (STR), Actinomyces (ACT), and American Type Culture Collection sporulation agar (ATCC). The greatest fresh biomass occurred on ATCC and the least on HT media. Sporulation occurred on ATCC and HT but not on STR and ACT media. Cultures produced geosmin on each media. However, sporulating cultures contained more geosmin than nonsporulating cultures. Cultures grown on ACT medium did not produce geosmin prior to 48 h after inoculation, and neither basic, acidic, nor enzymatic hydrolysis released geosmin, indicating that changes in geosmin content were due to de novo biosynthesis rather than release of bound metabolite. JF - Journal of Agricultural and Food Chemistry AU - Dionigi, C P AU - Millie, D F AU - Spanier, A M AU - Johnsen, P B AD - Food Flavor Qual. Res. Unit, ARS-USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 122 EP - 125 VL - 40 IS - 1 SN - 0021-8561, 0021-8561 KW - geosmin KW - Chemoreception Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Streptomyces tendae KW - production KW - off flavor KW - spores KW - food KW - contamination KW - R 18122:Taints & off-flavors KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16762177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Spore+and+geosmin+production+by+Streptomyces+tendae+on+several+media&rft.au=Dionigi%2C+C+P%3BMillie%2C+D+F%3BSpanier%2C+A+M%3BJohnsen%2C+P+B&rft.aulast=Dionigi&rft.aufirst=C&rft.date=1992-01-01&rft.volume=40&rft.issue=1&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces tendae; spores; production; food; contamination; off flavor ER - TY - JOUR T1 - Survival and growth of stem fragments from various Hydrilla races AN - 16761466; 3530997 AB - Fragments from sixteen separate races of hydrilla [Hydrilla verticillata, (L.f.) Royle] collected worldwide were evaluated in outside aquaria for ability to survive and grow. Differences were observed between races in their potential to establish and grow from fragments. Total biomass varied approximately sevenfold between the least and most productive races. The difference between the initial fragment and final weights ranged from 14 to 250 fold. Survival varied between 10 and 73%. A significant negative relationship was observed between first root development time and biomass. The number of rooted nodes which developed on stolons was the best single predictor of biomass production. Rates of root development on fragments of the various hydrilla races are criteria that may be useful in predicting the ability of the races to become established. Differences in shoot and root development were observed between races in their responses to applied plant growth regulators. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manag. Lab., ARS-USDA, 3205 College Ave., Ft. Lauderdale, FL 33314, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 129 EP - 135 VL - 55 IS - 3 SN - 0098-4590, 0098-4590 KW - stem fragments KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - aquatic plants KW - Freshwater KW - Hydrilla verticillata KW - colonization KW - weeds KW - survival KW - growth KW - D 04640:Other angiosperms KW - Q1 08424:Age and growth UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16761466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Survival+and+growth+of+stem+fragments+from+various+Hydrilla+races&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1992-01-01&rft.volume=55&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - aquatic plants; weeds; survival; colonization; growth; Hydrilla verticillata; Freshwater ER - TY - JOUR T1 - MARYBLYT super(TM): A computer model for the predicting of fire blight disease in apples and pears AN - 16752715; 3517512 AB - MARYBLYT super(TM) is a comprehensive computer program for predicting outbreaks of fire blight disease in apples and pears. The program is fully compiled in Pascal and operates on most IBM-compatible personal computers, including many laptop units. The model system predicts and identifies specific infection events and forecasts the appearance of symptoms for four distinct types of infections. The program is timed with host development, not calender date, and is responsible to daily and cumulative temperatures as well as wetting events, hail and high winds. MARYBLYT super(TM) can be operated in real time to provide an up-to-date assessment on infection risks and disease development, then switched quickly into a simulation mode to make predictions using forecast weather data. Visual messages and audible signals warn the user of potential infections, prompt treatment decisions and advise when to survey for symptoms. JF - COMPUT. ELECTR. AGRIC. AU - Lightner, G W AU - Steiner, P W AD - Appalachian Fruit Res. Stn., USDA-ARS, 45 Wiltshire Rd., Kearneysville, WV 25430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 249 EP - 260 VL - 7 IS - 3 KW - fire blight disease KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - computer programs KW - fruits KW - prediction KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16752715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=COMPUT.+ELECTR.+AGRIC.&rft.atitle=MARYBLYT+super%28TM%29%3A+A+computer+model+for+the+predicting+of+fire+blight+disease+in+apples+and+pears&rft.au=Lightner%2C+G+W%3BSteiner%2C+P+W&rft.aulast=Lightner&rft.aufirst=G&rft.date=1992-01-01&rft.volume=7&rft.issue=3&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=COMPUT.+ELECTR.+AGRIC.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - prediction; fruits; computer programs ER - TY - JOUR T1 - Suppression of aerial hyphae by staling products of Postia placenta AN - 16750893; 3517497 AB - Isolate ME20 is a wild-type monokaryotic strain of the brown-rot fungus Postia placenta that does not cause significant weight losses in standard soil-wood block decay tests. It also fails to form aerial hyphae in liquid and agar culture. This abnormal morphological feature may be caused by the same aberrant physiology that prevents the strain from efficiently degrading wood. Aerial hyphae formation was suppressed in MAD698, a standard floccose strain of P. placenta, when spent media from 14-day-old ME20 cultures made up 40% of more of the nutrient medium. Spent media from MAD698 cultures caused a similar effect but only at 80% and 100% concentrations. This suppression does not appear to be caused by nutrient deprivation or by the activity of extracellular autolytic enzymes. The suppressive factor has a molecular weight of < 10,000 Da, is resistant to boiling, and thus probably non-enzymatic. The inhibition of aerial hyphae formation is probably due to unidentified, low molecular weight staling products. JF - International Biodeterioration & Biodegradation AU - Micales, JA AD - USDA For. Serv., Forest Products Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 285 EP - 302 VL - 30 IS - 4 SN - 0964-8305, 0964-8305 KW - Postia placenta KW - hyphae formation KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - degradation KW - wood KW - inhibition KW - brown rot KW - A 01046:Deterioration & treatment of timber KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16750893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Suppression+of+aerial+hyphae+by+staling+products+of+Postia+placenta&rft.au=Micales%2C+JA&rft.aulast=Micales&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=30&rft.issue=4&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - brown rot; inhibition; wood; degradation ER - TY - JOUR T1 - Molecular genetic mapping of soybean: Map utilization AN - 16747462; 3513354 AB - Studies were conducted to (i) identify molecular probes that have a high probability of detecting polymorphisms among soybean [Glycine max (L.) Merr.] genotypes, (ii) determine the potential for analyzing genome structure using a molecular genetic map, and (iii) demonstrate the feasibility of a molecular pedigree analysis using mapped RFLP markers. Genomic DNA of 51 genotypes representing U.S. midwestern soybean germplasm was digested with the restriction enzymes HindIII, DraI, EcoRI, EcoRV, and TaqI. A random sample of 32 probes detected polymorphisms between paired comparisons of the 51 genotypes with a frequency from 0 to 72%. On average, no enzyme was strikingly better than any other for detecting polymorphisms. Homeologous chromosomal segments were detected, although they were clearly only remnants with recombination distance disparities and many rearrangements. The soybean genome, if indeed an ancient tetraploid, appears to be highly shuffled or diploidized. RFLP data were compared with the pedigrees of the cultivars Harosoy, Corsoy, Williams, and Clark, using from 58 to 105 mapped markers. Markers on Linkage Groups A and E were analyzed in detail to determine the map positions of polymorphisms and to identify chromosomal segments involved in cultivar development. The polymorphism percentage as detected by molecular markers coincided with genetic distance expectations based on pedigrees. These studies have demonstrated that probe-enzyme combinations can be identified that will be applicable to discerning differences among a broad range of genotypes. Additionally, it has been demonstrated that a detailed RFLP map can be used to increase our understanding of genome evolution and genome structure and, when combined with pedigrees, can be used to determine the ancestral sources of markers in a given cultivar's genome. JF - Crop Science AU - Shoemaker, R C AU - Guffy, R D AU - Lorenzen, L L AU - Specht, JE AD - USDA-ARS, Field Crops Res., Dep. Agron., Iowa State Univ., Ames, IA 50011 Y1 - 1992 PY - 1992 DA - 1992 SP - 1091 EP - 1098 VL - 32 IS - 5 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts KW - genetics KW - polymorphism KW - genomes KW - mapping KW - Glycine max KW - evolution KW - W2 32065:Plants KW - G 07352:Dicotyledons (miscellaneous) KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16747462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+temperature+on+life+history+characteristics+of+Anisopteromalus+calandrae+%28Hymenoptera%3A+Pteromalidae%29+parasitizing+maize+weevil+larvae+in+corn+kernels.&rft.au=Smith%2C+L&rft.aulast=Smith&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genetics; polymorphism; genomes; mapping; evolution; Glycine max ER - TY - JOUR T1 - Cell biology & molecular genetics. Analysis of culture-induced variation in soybean AN - 16739518; 3513355 AB - Genetic variation among culture-regenerated crop plants can be a source of novel and desirable genetic diversity, or it can be a source of detrimental and agronomically unfavorable phenotypic variability. The objectives of this research were to determine the frequency and types of somaclonal variants obtained from culture regenerated soybeans [Glycine max (L.) Merr.]. Four hundred seventy-five plants were regenerated from nine soybean cultivars via direct somatic embryogenesis from cotyledons of immature zygotic embryos. Their R sub(1), R sub(2), and R sub(3) progeny were scored for qualitative variation and inheritance of variant phenotypes. In each generation, sufficient numbers of progeny from R sub(0), R sub(1), and R sub(2) plants were grown to ensure a 95% probability of recovering a homozygous recessive phenotype, assuming single-gene inheritance. Phenotypic variation was observed in the R sub(0), R sub(1), R sub(2), and R sub(3) generations. Variant phenotypes included partial sterility (R sub(0), R sub(1), R sub(2)), complete sterility (R sub(0)), abnormal leaf morphology (R sub(0), R sub(1), R sub(2), R sub(3)), chlorophyll chimeras (R sub(2), R sub(3)), chlorophyll-deficiencies (R sub(2), R sub(3)), changes in growth habit (R sub(2), R sub(3)), yellow edges on cotyledons (R sub(3)), no unifoliates (R sub(3)), dwarf plants (R sub(2)), yellow-green plants (R sub(3)), and isozyme variants (R sub(2)). Inheritance studies of chlorophyll-deficient, curled leaf, and wrinkled leaf plants confirmed that these traits were genetically controlled. Segregation for genetically controlled traits initially was observed in the R sub(2) generation. This study produced variant phenotypes not previously reported that have potential for contributing to the understanding of the soybean genome. JF - Crop Science AU - Amberger, LA AU - Palmer, R G AU - Shoemaker, R C AD - USDA-ARS, Field Crops Res., Dep. Agron., Iowa State Univ., Ames, IA 50011 Y1 - 1992 PY - 1992 DA - 1992 SP - 1103 EP - 1108 VL - 32 IS - 5 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts KW - regeneration KW - phenotypes KW - genomes KW - crops KW - genetic variance KW - Glycine max KW - W2 32065:Plants KW - G 07352:Dicotyledons (miscellaneous) KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16739518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Cell+biology+%26amp%3B+molecular+genetics.+Analysis+of+culture-induced+variation+in+soybean&rft.au=Amberger%2C+LA%3BPalmer%2C+R+G%3BShoemaker%2C+R+C&rft.aulast=Amberger&rft.aufirst=LA&rft.date=1992-01-01&rft.volume=32&rft.issue=5&rft.spage=1103&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - regeneration; phenotypes; genomes; crops; genetic variance; Glycine max ER - TY - JOUR T1 - Assay for measuring relative potency of leptospiral bacterins containing serovar Pomona AN - 16731069; 3515910 AB - An enzyme-linked immunosorbent assay (ELISA) was developed for the quantitation of leptospiral antigen in bacterins containing Leptospira interrogans serovar pomona type kennewicki. A monoclonal antibody (MAb), 2D7, which is directed against a surface antigen on whole cells of L. interrogans serovar pomona type kennewicki, was used in the assay. The capture of antigen in bacterins by a polyclonal antiserum was followed by the addition of the 2D7 ascites fluid, an anti-mouse conjugate and substrate. Biologicals evaluated with this system included preparations containing type kennewicki antigen (homologous) and those not containing type kennewicki antigen (heterologous). Heterologous bacterins gave optical density (OD) values comparable to those of blank wells. Homologous bacterins yielded OD values equal to or greater than those of the National Veterinary Services Laboratories (NVSL) reference pomona bacterin. The relative potencies (RP) of 84 licensed commercial Leptospira pomona bacterin serials were evaluated against the NVSL reference pomona bacterin using the NVSL Relative Potency computer program. Random samples of 1, 2, 3 and 5 ml dose products were selected for evaluation with this system. All products tested passed the hamster potency assay required for leptospiral bacterins. This ELISA system enables detection of antigen in bacterins containing L. interrogans serovar pomona type kennewicki and demonstrates the potential for in vitro testing of leptospiral bacterins. JF - Biologicals AU - Ruby, K W AU - Cardella, MA AU - Knudtson, WU AD - Natl. Vet. Serv. Lab., Vet. Serv., Anim. and Plant Health Inspect. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 259 EP - 266 VL - 20 IS - 4 SN - 1045-1056, 1045-1056 KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - Leptospira interrogans KW - quantitation KW - bacterins KW - antigens KW - enzyme-linked immunosorbent assay KW - J 02831:Techniques and reagents KW - F 06723:Other labelling methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16731069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biologicals&rft.atitle=Assay+for+measuring+relative+potency+of+leptospiral+bacterins+containing+serovar+Pomona&rft.au=Ruby%2C+K+W%3BCardella%2C+MA%3BKnudtson%2C+WU&rft.aulast=Ruby&rft.aufirst=K&rft.date=1992-01-01&rft.volume=20&rft.issue=4&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Biologicals&rft.issn=10451056&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Leptospira interrogans; bacterins; antigens; quantitation; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Effects of large woody debris removal on physical characteristics of a sand-bed river AN - 16724399; 3712976 AB - Removal of large woody debris (LWD) is one of the most widely practised stream alterations, particularly in sand-bed rivers of the south-eastern USA. Selective removal of LWD has been proposed as an alternative to orthodox non-selective clearing in order to conserve ecological resources, but methods for comparing hydraulic and environmental effects of selective and non-selective removal have not been developed. Conservation of stream habitats requires quantification of LWD removal impacts on physical habitat. Physical characteristics of straightened, sand-bed reaches of the south fork of the Obion River in western Tennessee, USA that were rich in LWD were compared with those in similar reaches where debris had recently been removed using selective removal guidelines. The mean volume of LWD per unit water volume was 0.0545 in the uncleared reaches, but nearly 60% lower (0.0225) in the cleared reach. A simple technique for predicting hydraulic roughness in channels with varying amounts of LWD was developed. Hydraulic roughness as measured by the Darcy-Weisbach friction factor, was about 400% greater in uncleared reaches at base flow but declined to a level about 35% greater than for the cleared reaches at higher flows. Predicted friction factors were within 35% of measured friction factors at higher flows. Physical habitat diversity in this channelized sand-bed stream was strongly related to the density of LWD. Flow conditions in the uncleared reaches were more heterogeneous than in the cleared reach, especially at low flow. At low flow, uncleared reaches tended to be shallower, have lower velocities, slightly finer bed material, and more heterogeneous conditions overall. Shannon indices based on depth and velocity were an average of 48% higher in uncleared reaches. Bed sediments underneath and immediately adjacent to LWD formations were finer and contained more organic matter than sediments distant from LWD. However, when all bed samples were considered, organic content was positively correlated with median grain size. JF - Aquatic Conservation: Marine and Freshwater Ecosystems AU - Shields, FD Jr AU - Smith, R H AD - USDA-ARS, Natl. Sediment. Lab., Oxford, MS 38655-1157, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 145 EP - 163 VL - 2 IS - 2 SN - 1062-7613, 1062-7613 KW - USA, Tennessee, Obion R. KW - ecosystem analysis KW - microenvironments KW - microhabitats KW - river basin management KW - sediment properties KW - stream flow rate KW - streams KW - water flow KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - wood KW - Freshwater KW - river beds KW - USA, Tennessee KW - ecosystem management KW - hydrodynamics KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04310:Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16724399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.atitle=Effects+of+large+woody+debris+removal+on+physical+characteristics+of+a+sand-bed+river&rft.au=Shields%2C+FD+Jr%3BSmith%2C+R+H&rft.aulast=Shields&rft.aufirst=FD&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.issn=10627613&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wood; ecosystem management; river basin management; stream flow rate; hydrodynamics; sediment properties; microhabitats; river beds; ecosystem analysis; microenvironments; water flow; streams; USA, Tennessee; Freshwater ER - TY - JOUR T1 - Electrophoretic analysis of cationic proteins extracted from aflatoxin-resistant/susceptible varieties of corn AN - 16715746; 3505024 AB - The cationic proteins from two varieties of corn, Zea mays L., that are resistant (Yellow Creole) and susceptible (Huffman) to aflatoxin contamination were characterized by electrophoresis. Under native conditions, cathodic electrophoresis showed a cluster of proteins at R sub(f) = 5.0-6.5 in Yellow Creole that was not evident in Huffman. SDS-PAGE showed approximately 12 bands that ranged between 14 and 43 kDa in both varieties. The profiles were different, both qualitatively and quantitatively. The major proteins in Yellow Creole clustered around 20 kDa on the gel and those in Huffman around 25 kDa. Qualitative variations of proteins by two-dimensional electrophoresis were evident, especially within the pH range 6.7-8.0 and around 27 and 92 kDa. The results are discussed in connection with the possible role of polypeptides as antifungal agents in species of corn. JF - Journal of Agricultural and Food Chemistry AU - Neucere, J N AD - Southern Reg. Res. Cent., ARS-USDA, P.O. Box 19687, New Orleans, LA 70124, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1422 EP - 1424 VL - 40 IS - 8 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - aflatoxins KW - analysis KW - Zea mays KW - susceptibility KW - resistance KW - proteins KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16715746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+conidial+color+on+inactivation+of+several+entomogenous+fungi+%28Hyphomycetes%29+by+simulated+sunlight.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus flavus; Zea mays; aflatoxins; resistance; susceptibility; proteins; analysis; mycotoxins ER - TY - JOUR T1 - Detection of fungal contamination in corn: Potential of FTIR-PAS and -DRS AN - 16714755; 3505028 AB - Evaluation of agricultural grains, such as corn, suffers from a lack of techniques that can analyze solid materials. Two techniques, photoacoustic spectroscopy (PAS) and diffuse reflectance spectroscopy (DRS), were coupled to a Fourier transform infrared (FTIR) spectrometer to provide information about the mid-infrared absorption spectra of corn. Spectra generated from corn that was infected with Fusarium moniliforme or Aspergillus flavus, two mycotoxin producers, were dramatically different from those of uninfected corn. For F. moniliforme, enhanced spectral differences were associated with elevated culture toxicity. Preliminary studies to appraise the sensitivity of the methodology were conducted utilizing DRS. These indicated that spectra of corn contaminated at the 3% level (dry weight basis) with F. moniliforme were distinguishable from spectral variations associated with compositional divergence of different corn varieties. PAS was a more sensitive technique for detecting such fungal contaminations. Unfortunately, from a practical standpoint, PAS can presently analyze only one intact kernel at a time. JF - Journal of Agricultural and Food Chemistry AU - Greene, R V AU - Gordon, SH AU - Jackson, MA AU - Bennett, G A AU - McClelland, J F AU - Jones, R W AD - Biopolymer Res., Ferment. Biochem. Res. and Mycotoxin Res., Natl. Cent. Agric. Util. Res., ARS-USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1144 EP - 1149 VL - 40 IS - 7 SN - 0021-8561, 0021-8561 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Aspergillus flavus KW - Fusarium moniliforme KW - detection KW - Zea mays KW - grain KW - mycotoxins KW - A 01022:Mycotoxins KW - K 03082:Mycotoxins KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16714755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Detection+of+fungal+contamination+in+corn%3A+Potential+of+FTIR-PAS+and+-DRS&rft.au=Greene%2C+R+V%3BGordon%2C+SH%3BJackson%2C+MA%3BBennett%2C+G+A%3BMcClelland%2C+J+F%3BJones%2C+R+W&rft.aulast=Greene&rft.aufirst=R&rft.date=1992-01-01&rft.volume=40&rft.issue=7&rft.spage=1144&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium moniliforme; Aspergillus flavus; Zea mays; mycotoxins; detection; grain ER - TY - JOUR T1 - Reversed-phase high-performance liquid chromatographic separation of potato glycoalkaloids and hydrolysis products on acidic columns AN - 16711306; 3505808 AB - As part of a program of potato improvement, improved procedures were developed for reversed-phase high-performance liquid chromatographic (HPLC) separation of the alkaloids present in commercial potatoes: the two major glycoalkaloids, alpha -chaconine and alpha -solanine; hydrolysis products or metabolites derived from these two compounds, the so-called beta - and gamma -chaconines and solanines; and their aglycon, solanidine. For comparison, we also included the glycoside solasonine, present in wild potatoes, and its aglycon solasodine. Column "acidity", caused by active silanol sites on the packing's surface, was found to strongly influence chromatographic separation of Solanum alkaloids. Ten commercially available HPLC columns with reversed-phase packings in a total of 13 configurations were evaluated for relative acidity, with the aid of two standards: diphenhydramine and 5-(p-methylphenyl)-5-phenylhydantoin. Resolution of the glycoalkaloids improved with increasing acidity. JF - Journal of Agricultural and Food Chemistry AU - Friedman, M AU - Levin, CE AD - Food Saf. Res. Unit, Western Reg. Res. Cent., ARS-USDA, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2157 EP - 2163 VL - 40 IS - 11 SN - 0021-8561, 0021-8561 KW - glycoalkaloids KW - Toxicology Abstracts KW - separation KW - Solanum KW - hydrolysis KW - high-performance liquid chromatography KW - products KW - X 24120:Food, additives & contaminants KW - X 24172:Plants KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16711306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Reversed-phase+high-performance+liquid+chromatographic+separation+of+potato+glycoalkaloids+and+hydrolysis+products+on+acidic+columns&rft.au=Friedman%2C+M%3BLevin%2C+CE&rft.aulast=Friedman&rft.aufirst=M&rft.date=1992-01-01&rft.volume=40&rft.issue=11&rft.spage=2157&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum; hydrolysis; products; separation; high-performance liquid chromatography ER - TY - JOUR T1 - Subunit interactions of rubisco activase: Polyethylene glycol promotes self-association, stimulates ATPase and activation activities, and enhances interactions with rubisco. AN - 16700318; 2980380 AB - The effect of polyethylene glycol on the enzymatic and physical properties of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase was examined. JF - Archives of Biochemistry and Biophysics AU - Salvucci, ME AD - USDA-ARS and Agron. Dep., Univ. Kentucky, Lexington, KY 40546-0076, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 688 EP - 696 VL - 298 IS - 2 SN - 0003-9861, 0003-9861 KW - Spinacia oleracea KW - activity KW - enhancement KW - interaction KW - polyethylene glycol KW - ribulose-bisphosphate carboxylase KW - subunits KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16700318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Biochemistry+and+Biophysics&rft.atitle=Subunit+interactions+of+rubisco+activase%3A+Polyethylene+glycol+promotes+self-association%2C+stimulates+ATPase+and+activation+activities%2C+and+enhances+interactions+with+rubisco.&rft.au=Salvucci%2C+ME&rft.aulast=Salvucci&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Production of hydroxybenzoic acids by Bradyrhizobium japonicum strains after treatment with glyphosate. AN - 16674919; 3050378 AB - Glyphosate (N-(phosphonomethyl) glycine) effects on the growth and metabolism of the nitrogen-fixing soybean (Glycine max ) symbiont Bradyrhizobium japonicum were investigated. In higher plants glyphosate inhibits the shikimic acid pathway, causing accumulations of shikimic acid and certain benzoic acids, such as protocatechuic (PCA) and gallic acid. We sought to determine whether glyphosate also causes the accumulation of shikimic acid-derived benzoic acids in B. japonicum . Three strains (USDA 110, 123, and 138) were grown in defined media lacking aromatic amino acids. Glyphosate at concentrations of 0.5 and 1 mM was inhibitory but not lethal. Cell death occurred in response to 5 mM glyphosate, and rapid death was observed at 10 mM. Accumulations of 1 mM PCA were observed in the culture media of strains 123 and 138. Only trace amounts of PCA accumulated in untreated controls or in strain 110 cultures. All strains were able to metabolize PCA in the absence of glyphosate. The high levels of PCA produced by B. japonicum strains may alter the symbiotic interactions between this bacterium and glyphosate-resistant varieties of soybean. JF - Journal of Agricultural and Food Chemistry AU - Moorman, T B AU - Becerril, J M AU - Lydon, J AU - Duke, SO AD - Natl. Soil Tilth Lab., USDA-ARS, 2150 Pammel Dr., Ames, IA 50011, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 289 EP - 293 VL - 40 IS - 2 SN - 0021-8561, 0021-8561 KW - glyphosate KW - hydroxybenzoic acid KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - symbiosis KW - Bradyrhizobium japonicum KW - nitrogen fixation KW - Glycine max KW - A 01051:Nitrogen cycle KW - J 02812:Antibacterial Agents: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16674919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Production+of+hydroxybenzoic+acids+by+Bradyrhizobium+japonicum+strains+after+treatment+with+glyphosate.&rft.au=Moorman%2C+T+B%3BBecerril%2C+J+M%3BLydon%2C+J%3BDuke%2C+SO&rft.aulast=Moorman&rft.aufirst=T&rft.date=1992-01-01&rft.volume=40&rft.issue=2&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; nitrogen fixation; symbiosis ER - TY - JOUR T1 - Evaluation of the efficacy of an oil-emulsion bacterin for protecting chickens against Salmonella enteritidis . AN - 16661968; 3023648 AB - To assess the potential protective efficacy of a Salmonella enteritidis bacterin, an acetone-killed oil-emulsion vaccine was prepared from a phage type 13a S. enteritidis strain and administered subcutaneously to hens in two experiments. Hens were housed individually, and every other hen was vaccinated (at 23 weeks of age in one experiment and at 45 weeks in the other). A second (booster) bacterin injection was administered 6 weeks later in both experiments. Three weeks after the second vaccination, all hens were challenged with an oral dose of approximately 10 super(9) cells of a heterologous (phage type 14b) S. enteritidis) strain. In both trials, S. enteritidis was isolated from fewer internal organs (spleens, ovaries, and oviducts) and pools of egg contents from vaccinated hens than from unvaccinated control hens. Vaccination did not, however, affect the percentage of hens that shed S. enteritidis in feces in either experiment. JF - Avian Diseases AU - Gast, R K AU - Stone, H D AU - Holt, P S AU - Beard, C W AD - USDA-ARS, Southeast Poult. Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 992 EP - 999 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - immunity KW - efficacy KW - colonization KW - vaccination KW - Salmonella enteritidis KW - J 02834:Vaccination and immunization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16661968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Evaluation+of+the+efficacy+of+an+oil-emulsion+bacterin+for+protecting+chickens+against+Salmonella+enteritidis+.&rft.au=Gast%2C+R+K%3BStone%2C+H+D%3BHolt%2C+P+S%3BBeard%2C+C+W&rft.aulast=Gast&rft.aufirst=R&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=992&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; vaccination; efficacy; immunity; colonization; gastrointestinal tract ER - TY - JOUR T1 - Effect of used litter from floor pens of adult broilers on salmonella colonization of broiler chicks. AN - 16631640; 3023615 AB - The effect of used pine-shaving litter from broiler floor pens on Salmonella colonization resistance was evaluated in broiler chicks. One-day-old chicks were placed in floor pens on fresh unused litter or on used litter. All chicks were challenged orally with 10 super(4) S. typhimurium) at 3 days of age. The study was replicated in three trials with used litter that was collected and stored for 1 day (Trial 1), 4 days (Trial 2), or 50 days (Trial 3) before the start of each trial. Cecal concentrations of volatile fatty acids (VFAs) were significantly higher (P < 0.05) in chicks placed on used litter than in chicks on new litter. In all three trials, the number of Salmonella in the cecal contents and the number of Salmonella cecal-culture-positive chicks was significantly lower (P < 0.01) at 10 days and 20 days of age in the chicks on used litter than in the chicks on new litter. The results indicated that newly hatched chicks reared on used litter had higher cecal VFA concentrations and higher resistance to Salmonella colonization than chicks reared on new litter. JF - Avian Diseases AU - Corrier, DE AU - Hinton, A Jr AU - Hargis, B AU - DeLoach, J R AD - USDA-ARS, Food Anim. Protect. Res. Lab., Route 5, Box 810, College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 897 EP - 902 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - fatty acids KW - cecum KW - resistance KW - Salmonella typhimurium KW - culture KW - colonization KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16631640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+used+litter+from+floor+pens+of+adult+broilers+on+salmonella+colonization+of+broiler+chicks.&rft.au=Corrier%2C+DE%3BHinton%2C+A+Jr%3BHargis%2C+B%3BDeLoach%2C+J+R&rft.aulast=Corrier&rft.aufirst=DE&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; colonization; cecum; fatty acids; culture; resistance ER - TY - JOUR T1 - Biodegradation of 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid by dichlorophenol-adapted microorganisms from freshwater, anaerobic sediments. AN - 16621387; 2989719 AB - Reductive dechlorination of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) was investigated in anaerobic sediments by non-adapted microorganisms and by microorganisms adapted to either 2,4- or 3,4-dichlorophenol (DCP). The rate of dechlorination of 2,4-D was increased by adaptation of sediment microorganisms to 2,4-DCP while dechlorination by sediment microorganisms adapted to 3,4-DCP displayed a lag phase similar to non-adapted sediment slurries. Both 2,4- and 3,4-DCP-adapted microorganisms produced 4-chlorophenoxyacetic acid by ortho-chlorine removal. Lag phases prior to dechlorination of the initial addition of 2,4,5-T by DCP-adapted sediment microorganisms were comparable to those from non-adapted sediment slurries. However, the rates of dechlorination increased upon subsequent additions of 2,4,5-T. Biodegradation of 2,4,5-T by sediment microorganisms adapted to 2,4- and/or 3,4-DCP produced 2,5-D as the initial intermediate followed by 3-chlorophenol and phenol indicating a para > ortho > meta order of dechlorination. Dechlorination of 2,4,5-T, by either adapted or non-adapted sediment microorganisms, progressed without detection of 2,4,5-trichlorophenol as an intermediate. JF - Applied Microbiology and Biotechnology AU - Bryant, F O AD - Russell ARC/USDA, P.O. Box 5677, Coll. Stn. Rd., Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 276 EP - 281 VL - 38 IS - 2 SN - 0175-7598, 0175-7598 KW - 2,4,5-I KW - 2,4,5-trichlorophenoxyacetic acid KW - 2,4-D KW - 2,4-dichlorophenoxyacetic acid KW - freshwater lakes KW - ASFA 1: Biological Sciences & Living Resources; ASFA Marine Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - chlorinated hydrocarbons KW - biodegradation KW - Freshwater KW - dechlorination KW - bacteria KW - sediments KW - microorganisms KW - Q1 08206:Physiology, biochemistry, biophysics KW - Q4 27480:Environmental Applications/Impact KW - A 01016:Microbial degradation KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16621387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Biodegradation+of+2%2C4-dichlorophenoxyacetic+acid+and+2%2C4%2C5-trichlorophenoxyacetic+acid+and+2%2C4%2C5-trichlorophenoxyacetic+acid+by+dichlorophenol-adapted+microorganisms+from+freshwater%2C+anaerobic+sediments.&rft.au=Bryant%2C+F+O&rft.aulast=Bryant&rft.aufirst=F&rft.date=1992-01-01&rft.volume=38&rft.issue=2&rft.spage=276&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; biodegradation; freshwater lakes; dechlorination; bacteria; sediments; microorganisms; Freshwater ER - TY - JOUR T1 - Effect of virginiamycin on serum carotenoid levels and long, segmented, filamentous organisms in broiler chicks. AN - 16606958; 3023652 AB - Virginiamycin (Stafac 20)) was mixed with feed at three levels recommended for chickens-5.5, 11, and 22 mg/kg (respectively 5, 10 and 20 g/ton)-and fed to broiler chicks. When fed from 1 day through 2 weeks of age, the drug appeared to retard infection of the lower small intestine by long, segmented, filamentous organisms (LSFOs), and at 2 weeks of age serum carotenoids in treated chicks were significantly higher than levels found in unmedicated chicks. However, as chicks were grown out to 4 and 6 weeks of age, the drug did not completely prevent eventual LSFO infection, even at the highest dose, and mean serum carotenoid levels in treated chicks were not significantly different from levels in control chicks. However, chicks fed at the level of 22 mg/kg had fewer LSFOs. Withdrawal of virginiamycin from treated chicks at 4 weeks of age allowed LSFO infection to occur but did not significantly affect serum carotenoid levels. When the drug was fed for 2 weeks at 22 mg/kg to 2-week-old chicks already infected with LSFOs, the bacteria could no longer be detected, suggesting that virginiamycin may aid the natural decline in LSFO population. Coincident with this treatment, serum carotenoids were higher, but not significantly so. Virginiamycin did not significantly increase the mean body weights of chicks in any of these experiments. JF - Avian Diseases AU - Allen, P C AD - USDA-ARS, Livestock and Poult. Sci. Inst., Protozoan Dis. Lab., Build. 1040, Rm 100A, BARC-East, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 852 EP - 857 VL - 36 IS - 4 SN - 0005-2086, 0005-2086 KW - chickens KW - carotenoids KW - virginiamycin KW - Microbiology Abstracts B: Bacteriology KW - animal breeding KW - bacteria KW - infection KW - viruses KW - serological tests KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16606958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+virginiamycin+on+serum+carotenoid+levels+and+long%2C+segmented%2C+filamentous+organisms+in+broiler+chicks.&rft.au=Allen%2C+P+C&rft.aulast=Allen&rft.aufirst=P&rft.date=1992-01-01&rft.volume=36&rft.issue=4&rft.spage=852&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - bacteria; viruses; infection; animal breeding; serological tests ER - TY - JOUR T1 - Immunotoxicity of ochratoxin A to growing gilts. AN - 16599082; 2991835 AB - Ochratoxin A (OA) was incorporated in the diets of growing gilts (mean body weight, 20.1 kg) at a concentration of 2.5 mg of OA/kg of feed and was fed continuously for 35 days. Humoral and cell-mediated immunologic measurements were evaluated to determine the effects of OA on immune function in swine. Cutaneous basophil hypersensitivity to phytohemagglutinin (PHA), delayed hypersensitivity to tuberculin, PHA-induced lymphocyte blastogenesis, interleukin-2 production, total and isotype immunoglobulin concentrations, antibody response to chicken RBC, and macrophage activation were used to evaluate immune function. Gilts treated with OA had reduced cutaneous basophil hypersensitivity response to PHA, reduced delayed hypersensitivity to tuberculin, decreased stimulation index for lymphoblastogenesis, decreased interleukin-2 production when lymphocytes were stimulated with concanavalin A, and decreased number and phagocytic activity of macrophages. JF - American Journal of Veterinary Research AU - Harvey, R B AU - Elissalde, M H AU - Kubena, L F AU - Weaver, E A AU - Corrier, DE AU - Clement, BA AD - USDA, Agric. Res. Serv., Food Anim. Prot. Res. Lab., College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1966 EP - 1970 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - ochratoxin A KW - pigs KW - Immunology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - immune system KW - Penicillium KW - Aspergillus KW - interleukin 2 KW - toxicity KW - mycotoxins KW - immunosuppression KW - lymphoblasts KW - phagocytosis KW - hypersensitivity KW - K 03082:Mycotoxins KW - X 24171:Microbial KW - F 06791:Experimental UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16599082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Immunotoxicity+of+ochratoxin+A+to+growing+gilts.&rft.au=Harvey%2C+R+B%3BElissalde%2C+M+H%3BKubena%2C+L+F%3BWeaver%2C+E+A%3BCorrier%2C+DE%3BClement%2C+BA&rft.aulast=Harvey&rft.aufirst=R&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1966&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aspergillus; Penicillium; immune system; toxicity; hypersensitivity; lymphoblasts; interleukin 2; phagocytosis; immunosuppression; mycotoxins ER - TY - JOUR T1 - Identification and inheritance of metribuzin tolerance in wild soybean AN - 16569711; 3652238 AB - An economically important agronomic trait that has not been evaluated extensively in the wild soybean (Glycine soja Sieb. & Zucc.) is tolerance to herbicides. Identification and genetic characterization of tolerance to a widely used herbicide, metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)- one], in G. soja may help provide greater diversity in the gene pool for this trait. This study was conducted to identify tolerance to metribuzin in the wild soybean and to determine the genetic control of the trait. Crosses were made between metribuzin-tolerant G. soja selections and metribuzin-sensitive selections of G. max (L.) Merr. The F sub(1), F sub(2), and F sub(3) populations from these crosses were grown hydroponically, and evaluated for reaction to a concentration of 125 mu g L super(-1) metribuzin. (DBO) JF - Crop Science AU - Kilen, T C AU - He, Guohao AD - USDA-ARS, Soybean Prod. Res. Unit, P.O. Box 196, Stoneville, MS 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 684 EP - 685 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - metribuzin KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Glycine soja KW - germplasm KW - tolerance KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16569711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Identification+and+inheritance+of+metribuzin+tolerance+in+wild+soybean&rft.au=Kilen%2C+T+C%3BHe%2C+Guohao&rft.aulast=Kilen&rft.aufirst=T&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=684&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - germplasm; tolerance; Glycine soja ER - TY - JOUR T1 - Variability of malate dehydrogenase among cotton cultivars with differing fiber traits AN - 16569688; 3652236 AB - Little is understood about the biochemical basis of differences in quantitative traits of cotton (Gossypium hirsutum L.) fiber. Malate dehydrogenase (MDH) is implicated as an enzyme that may have an effect on extension growth during the development of cotton fiber. Our objectives were, first, to determine if variability among cultivars exists for MDH, and, second, to determine if variability in MDH can be correlated with quantitative traits of fiber. Twenty-four cultivars G. hirsutum were chosen. Polyacrylamide gel electrophoresis was used to search for MDH allozyme variation in etiolated cotyledons. Additionally, MDH activity in developing fiber was measured. All cultivars were grown in 1990 at two sites near Stoneville, MS. At 12 days post anthesis (DPA), immature bolls were harvested and the fiber separated from the ovules. (DBO) JF - Crop Science AU - Kloth, R H AD - USDA-ARS, Cotton Physiol. and Genet. Res. Unit, P.O. Box 345, Stoneville, MS 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 617 EP - 621 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - malate dehydrogenase KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - fibers KW - cultivars KW - isoenzymes KW - Gossypium hirsutum KW - W2 32440:Plant breeding KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16569688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Variability+of+malate+dehydrogenase+among+cotton+cultivars+with+differing+fiber+traits&rft.au=Kloth%2C+R+H&rft.aulast=Kloth&rft.aufirst=R&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - fibers; cultivars; isoenzymes; Gossypium hirsutum ER - TY - JOUR T1 - Physiological effects of red phosphorus smoke inhalation on prairie dogs and rock doves. AN - 16531528; 2968461 AB - Pulmonary function, blood chemistry, and hematology studies were conducted with prairie dogs (Cynomys ludovicianus ) and rock doves (Columba livia ) under resting conditions to assess environmental risk of exposing wildlife species to multiple applications of red phosphorus/butyl rubber smoke (0.0, 1.0, and 4.0 mg/L). Four daily 80-min smoke exposures had no significant physiological effect on prairie dogs. However, with rock doves, two daily 80-min smoke exposures resulted in elevated respiratory frequency in two males followed by death, a significant concentration x day effect on carbon dioxide production, respiratory exchange ratio, metabolic rate, lymphocytes, and heterophiles, and a significant sex x concentration effect on hemoglobin and methemoglobin. Although results showed that rock doves are more vulnerable to red phosphorus/butyl rubber smoke than prairie dogs, it appears that exposure to the smoke is unlikely to pose a significant risk to either species under field conditions. JF - Environmental Toxicology and Chemistry AU - Johns, B E AU - Thompson, R D AU - Crane, KA AD - USDA, Anim. and Plant Health Inspection Serv., Sci. and Technol., Denver Wildl. Res. Cent., Denver, CO 80225-0226, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1345 EP - 1353 VL - 11 IS - 9 SN - 0730-7268, 0730-7268 KW - red phosphorus smoke KW - haematology KW - red phosphorus KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - inhalation KW - smoke KW - lung KW - Cynomys ludovicianus KW - Columba livia KW - H SE1.21:WILDLIFE KW - X 24240:Miscellaneous KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16531528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Physiological+effects+of+red+phosphorus+smoke+inhalation+on+prairie+dogs+and+rock+doves.&rft.au=Johns%2C+B+E%3BThompson%2C+R+D%3BCrane%2C+KA&rft.aulast=Johns&rft.aufirst=B&rft.date=1992-01-01&rft.volume=11&rft.issue=9&rft.spage=1345&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Cynomys ludovicianus; Columba livia; inhalation; lung; smoke ER - TY - JOUR T1 - Investment decisions and transferable discharge permits: An empirical study of water quality management under policy uncertainty. AN - 16497815; 2949192 AB - The problem of investment decisions for sources participating in transferable discharge permit (TDP) markets has not received much attention. One way TDPs offer potential savings is with their ability to influence development in a region. Static models have assessed the potential savings of TDPs but do not explicitly consider investment decisions; thus they do not capture this long run role nor that of policy uncertainty and tend to understate both the cost saving potential and the difficulty in achieving it. This paper addresses both problems by emphasizing the temporal dimension of TDPs. A two-period investment model investigates the magnitude of these potential savings and the effects of two types of policy uncertainty upon expected gains from permit trading. JF - Environmental & Resource Economics AU - Letson, D AD - Resour. and Technol. Div., Econ. Res. Serv., USDA, Rm. 438E, 1301 New York Ave., NW, Washington, DC 20005-4788, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 441 EP - 458 VL - 2 IS - 5 SN - 0924-6460, 0924-6460 KW - environmental management KW - transferable discharge permit (TDP) KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Marine KW - wastewater treatment KW - environment management KW - regional planning KW - Brackish KW - Freshwater KW - USA KW - economics KW - water quality control KW - pollution control KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16497815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+%26+Resource+Economics&rft.atitle=Investment+decisions+and+transferable+discharge+permits%3A+An+empirical+study+of+water+quality+management+under+policy+uncertainty.&rft.au=Letson%2C+D&rft.aulast=Letson&rft.aufirst=D&rft.date=1992-01-01&rft.volume=2&rft.issue=5&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Environmental+%26+Resource+Economics&rft.issn=09246460&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - wastewater treatment; regional planning; environment management; economics; water quality control; pollution control; USA; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Enzymatic activities of citrus leaves from plants resistant and susceptible to citrus bacterial canker disease. AN - 16495468; 2935996 AB - The activities of catalase (EC 1.11.1.6; CAT), peroxidase (EC 1.11.1.7; POD), polyphenoloxidase (EC 1.10.3.1; PPO), glucose-6-phosphate dehydrogenase (EC 1.1.1.49; G6PDH), 6-phosphogluconate dehydrogenase (EC 1.1.1.44; 6PGDH), isocitrate dehydrogenase (EC 1.1.1.42; ICDH), and the total phenolic content in citrus leaves differing in susceptibility to infection by strains of Xanthomonas campestris pv. citri (Xcc) were determined. The levels of oxidative enzymes (CAT, POD and PPO), pentose-phosphate cycle enzymes (G6PDH and 6PGDH), and the total phenolic contents were higher in Xcc resistant plants (Yuzu, Dancy, Cleopatra, and Kawano Wase) than in susceptible plants (citrumelo, lemon, Rough lemon and grapefruit). However, the glycolysis-tricarboxylic acid cycle enzyme, ICDH, was lower in Xcc resistant plants than in susceptible plants. JF - Environmental and Experimental Botany AU - Jiao, HJ AU - Wang, SY AU - Civerolo, EL AD - Fruit Lab., ARS-USDA, Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 465 EP - 470 VL - 32 IS - 4 SN - 0098-8472, 0098-8472 KW - pv.citri KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Citrus KW - enzymatic activity KW - leaves KW - canker KW - susceptibility KW - infection KW - resistance KW - Xanthomonas campestris KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16495468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Experimental+Botany&rft.atitle=Enzymatic+activities+of+citrus+leaves+from+plants+resistant+and+susceptible+to+citrus+bacterial+canker+disease.&rft.au=Jiao%2C+HJ%3BWang%2C+SY%3BCiverolo%2C+EL&rft.aulast=Jiao&rft.aufirst=HJ&rft.date=1992-01-01&rft.volume=32&rft.issue=4&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Experimental+Botany&rft.issn=00988472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Xanthomonas campestris; Citrus; infection; leaves; enzymatic activity; canker; resistance; susceptibility ER - TY - JOUR T1 - Differential digestibilities of channel catfish, bluegill, and gizzard shad: In vitro standards for gastric digestion by seabirds. AN - 16494379; 2945726 AB - The author determined relative rates of digestion of three fish species in vitro by mimicking the gastric juices of piscivorous birds. Bluegill (Lepomis macrochirus ) were digested more slowly than Channel Catfish (Ictalurus punctatus ) and Gizzard Shad (Dorosoma cepedianum ). Digestion kinetics of Bluegill were linear; those of Channel Catfish and Gizzard Shad nonlinear. These digestibility data may be used to predict in vivo digestibility, to correct estimates of food habits of individuals in field studies where gut contents are sampled, or to estimate nutritional contribution of different fish to the diets of birds. JF - Colonial Waterbirds AU - Brugger, KE AD - USDA/APHIS Denver Wildl. Res. Cent., Florida Field Stn., 2820 E. University Ave., Gainesville, FL 32601, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 257 EP - 260 VL - 15 IS - 2 SN - 0738-6028, 0738-6028 KW - avifauna KW - comparative studies KW - comparison KW - food selection KW - freshwater fish KW - marine birds KW - marine fish KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine KW - Dorosoma cepedianum KW - Ictalurus punctatus KW - Aves KW - digestibility KW - Lepomis macrochirus KW - D 04671:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Q1 08366:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16494379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Colonial+Waterbirds&rft.atitle=Differential+digestibilities+of+channel+catfish%2C+bluegill%2C+and+gizzard+shad%3A+In+vitro+standards+for+gastric+digestion+by+seabirds.&rft.au=Brugger%2C+KE&rft.aulast=Brugger&rft.aufirst=KE&rft.date=1992-01-01&rft.volume=15&rft.issue=2&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Colonial+Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - comparative studies; freshwater fish; digestibility; marine birds; marine fish; food selection; avifauna; comparison; Aves; Dorosoma cepedianum; Lepomis macrochirus; Ictalurus punctatus; Marine ER - TY - JOUR T1 - Determination of nitroimidazole metabolites in swine and turkey muscle by liquid chromatography. AN - 16493410; 2944192 AB - The method described can determine hydroxy dimetridazole hydroxy ipronidazole in turkey and swine muscle tissue at levels of 2 ppb. After an initial extraction with ethyl acetate and subsequent evaporation, the samples are solvated in acid and back-extracted. A C sub(18) solid-phase extraction is performed after neutralization of the acidic extract. The basis for quantitation was an external standard containing both analytes. After performing 10 recovery curves with blank control tissue spiked at 0, 1, 2, and 4 ppb, the mean recoveries of hydroxy dimetridazole and hydroxy ipronidazole were 61.8 and 64.6%, respectively. Recovery variation was less than 20% for both analytes over all 10 curves. The performance of the extraction method was verified in tissues incurred through the dosing of live animals. JF - Journal of AOAC International AU - Mallinson, ET III AU - Henry, A C AU - Rowe, L AD - USDA, Food Saf. and Inspect. Serv., Midwest. Lab., Saint Louis, MO 63115, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 790 EP - 796 VL - 75 IS - 5 SN - 1060-3271, 1060-3271 KW - nitroimidazole KW - determination KW - methodology KW - meat KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - liquid chromatography KW - metabolites KW - X 24120:Food, additives & contaminants KW - X 24222:Analytical procedures KW - H SE4.20:POISONS AND POISONING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16493410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+AOAC+International&rft.atitle=Determination+of+nitroimidazole+metabolites+in+swine+and+turkey+muscle+by+liquid+chromatography.&rft.au=Mallinson%2C+ET+III%3BHenry%2C+A+C%3BRowe%2C+L&rft.aulast=Mallinson&rft.aufirst=ET&rft.date=1992-01-01&rft.volume=75&rft.issue=5&rft.spage=790&rft.isbn=&rft.btitle=&rft.title=Journal+of+AOAC+International&rft.issn=10603271&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - metabolites; liquid chromatography; determination; methodology; meat ER - TY - JOUR T1 - Suppression of house flies (Diptera: Muscidae) on New York and Maryland dairies using releases of Muscidifurax raptor (Hymenoptera: Pteromalidae) in an integrated management program. AN - 16484366; 2934175 AB - Releases of Muscidifurax raptor (Girault & Sanders) were integrated with weekly removal of calf bedding and infrequent use of pyrethrin space sprays for management of house flies, Musca domestica L., on seven dairy farms in New York and Maryland; six other farms were used as controls. Baited traps were used for supplemental outdoor fly control on release farms in Maryland. Parasitoid releases were made by weekly placement of either 25,000 (in New York) or 20,000 (in Maryland) parasitized house fly pupae in screen bags on each farm, resulting in weekly release rates of 12,000 and 9,600 female parasitoids per farm per week, respectively. Overall season-long fly pupal mortality (as measured by sentinel fly pupae) was 65 and 38% on release farms in New York and Maryland, respectively, compared with 30 and 26% on control farms. JF - Environmental Entomology AU - Geden, C J AU - Rutz, DA AU - Miller, R W AU - Steinkraus, D C AD - USDA-ARS, Med. and Vet. Entomol. Res. Lab., P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1419 EP - 1426 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - Musca domestica KW - integrated control KW - pest control KW - Hymenoptera KW - USA, Maryland KW - Muscidifurax raptor KW - dairies KW - USA, New York KW - management KW - Diptera KW - Muscidae KW - Pteromalidae KW - Z 05206:Medical & veterinary entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16484366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Suppression+of+house+flies+%28Diptera%3A+Muscidae%29+on+New+York+and+Maryland+dairies+using+releases+of+Muscidifurax+raptor+%28Hymenoptera%3A+Pteromalidae%29+in+an+integrated+management+program.&rft.au=Geden%2C+C+J%3BRutz%2C+DA%3BMiller%2C+R+W%3BSteinkraus%2C+D+C&rft.aulast=Geden&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1419&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Musca domestica; Muscidifurax raptor; Muscidae; Diptera; Pteromalidae; Hymenoptera; USA, New York; USA, Maryland; pest control; integrated control; management; dairies ER - TY - JOUR T1 - Geographical variation in alfalfa accessions for resistance to two isolates of Peronospora trifoliorum . AN - 16483772; 2937507 AB - We evaluated the resistance of 631 plant introduction accessions PIs of alfalfa (Medicago sativa L.) from 50 countries, to two isolates (I-7 and I-8) of Peronospora trifoliorum de Bary, causal fungus of alfalfa downy mildew. The objectives were to investigate the association of alfalfa subspecies, basic germplasm source, fall dormancy, and regions of origin, with levels of resistance to P. trifoliorum . Differences between mean percentages of resistance to the fungus isolates were tested for statistical significance with t-prime tests, or LSD tests, adjusted in accordance with Bonferroni's inequalities. Five M. sativa subspecies were included: falcata , x varia, sativa , x hemicycla , and caerulea . The mean proportions of plants resistant to one isolate were not significantly different from the proportions resistance to the other isolate within any subspecies. Hence, genetic ancestry of the plants apparently was unrelated to isolate-specific resistance. Mean percentages of resistant plants ranged from 26.8 (subsp. falcata ), to 6.3 (subsp. caerulea ). Subspecies sativa accessions averaged 15.4% resistant plants. Significant differences between isolates within individual accessions were found in 160 accessions. The PIs with significantly more plants resistant to I-7 than to I-8 were from South and Central America, the Mediterranean area, and Australia. Plant introductions with significantly more plants resistant to isolate I-8 than to I-7 were from northern Europe and North America. This isolate-specific resistance did not appear to be associated with the geographic centers of origin of the basic types of alfalfa germplasms. JF - Crop Science AU - Skinner, D Z AU - Stuteville, D L AD - USDA-ARS and Dep. Agron., Kansas State Univ., Manhattan, KS 66506, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1467 EP - 1470 VL - 32 IS - 6 SN - 0011-183X, 0011-183X KW - Peronospora trifoliorum KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - disease resistance KW - inheritance KW - geographical variations KW - isolates KW - downy mildew KW - cultivars KW - Medicago sativa KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16483772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Geographical+variation+in+alfalfa+accessions+for+resistance+to+two+isolates+of+Peronospora+trifoliorum+.&rft.au=Skinner%2C+D+Z%3BStuteville%2C+D+L&rft.aulast=Skinner&rft.aufirst=D&rft.date=1992-01-01&rft.volume=32&rft.issue=6&rft.spage=1467&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Medicago sativa; downy mildew; cultivars; isolates; geographical variations; disease resistance; inheritance ER - TY - JOUR T1 - Biological control of Helicoverpa zea (Lepidoptera: Noctuidae) with Steinernema carpocapsae (Rhabditida: Steinernematidae) in corn used as a trap crop. AN - 16481890; 2934129 AB - The planting of corn borders as a trap crop for the melon fly, Bactrocera cucurbitae Coquillet, potentially could cause increased infestation rates of Helicoverpa zea (Boddie) in adjacent tomatoes. The potential of the entomopathogenic nematode Steinernema carpocapsae Weiser for control of H. zea in corn borders was explored in research conducted both in Oahu and Maui, HI. Field tests were conducted to determine the concentration response of H. zea to S. carpocapsae in Oahu. The most effective of the treatments tested were 4,000 and 40,000 nematodes per millimeter of water, causing 57.6 plus or minus 5.4 and 74.5 plus or minus 17.4% mortality, respectively, 6 d after treatment. In corn border trials with tomatoes, treated corn had 15 times fewer living H. zea larvae and 97% less damage to corn ears than in untreated corn. JF - Environmental Entomology AU - Purcell, M AU - Johnson, M W AU - Lebeck, L M AU - Hara, AH AD - USDA-ARS Trop. Fruit and Veg. Lab., P.O. Box 1330, Kappa, Kauai, HI 96746, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1441 EP - 1447 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - biological control KW - Steinernema carpocapsae KW - treatment KW - planting KW - Helicoverpa zea KW - Lepidoptera KW - trapping KW - Zea mays KW - Noctuidae KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16481890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Biological+control+of+Helicoverpa+zea+%28Lepidoptera%3A+Noctuidae%29+with+Steinernema+carpocapsae+%28Rhabditida%3A+Steinernematidae%29+in+corn+used+as+a+trap+crop.&rft.au=Purcell%2C+M%3BJohnson%2C+M+W%3BLebeck%2C+L+M%3BHara%2C+AH&rft.aulast=Purcell&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1441&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Zea mays; Helicoverpa zea; Noctuidae; Lepidoptera; Steinernema carpocapsae; biological control; trapping; treatment; planting ER - TY - JOUR T1 - Qualitative effects associated with red phosphorus smoke inhalation exposures in two wildlife species: Prairie dogs and rock doves. AN - 16478802; 2932536 AB - Effects of red phosphorus/butyl rubber (RP/BR) smoke on two wildlife species, prairie dogs and rock doves (pigeons), were evaluated in laboratory range-finding experiments. Prairie dogs exposed to either 2.0, 4.0, or 6.0 mg/L concentrations of smoke showed no mortality within 30 days after one to four 1-h exposure sessions. Rock doves exposed to either 3.0 or 6.0 mg/L concentrations over 1-4 sessions, hower, showed 26% mortality within 8 days postexposure. Male rock doves were much more vulnerable to RP/BR smoke effects, with 42% mortality, in contrast to 6% in the females. Assessments indicated affected or lost vocalization capability in both species, abnormal body postures in rock doves, and increased respiratory congestion in prairie dogs postexposure. Neither species showed definite, consistent effects in gross necropsy and histopathology assessments. Only a few of the rock doves in 6.0 mg/L groups showed signs of excess mucus or exudate in their nasal passages and larynges. JF - Inhalation Toxicology AU - Shumake, SA AU - Sterner, R T AU - Johns, B E AU - Thomson, R D AU - Bush, F AU - Crane, KA AU - Gaddis, SE AU - Church, G W AU - Jenny, AL AD - USDA/APHIS/S&T, Denver Wildl. Res. Cent., Build. 16, Fed. Cent., Denver, CO 80225-0266, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 411 EP - 431 VL - 4 IS - 4 SN - 0895-8378, 0895-8378 KW - red phosphorus smoke KW - Toxicology Abstracts KW - inhalation KW - toxicity KW - Cynomys ludovicianus KW - Columba livia KW - X 24240:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16478802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Responses+of+microbial+populations+in+the+rhizosphere+to+deposition+of+simulated+acidic+rain+onto+foliage+and%2For+soil&rft.au=Shafer&rft.aulast=Shafer&rft.aufirst=&rft.date=1992-01-01&rft.volume=76&rft.issue=3&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Cynomys ludovicianus; Columba livia; inhalation; toxicity ER - TY - JOUR T1 - Experimental reintroduction of red-cockaded woodpeckers. AN - 16477324; 2930017 AB - The Red-cockaded Woodpecker (Picoides borealis ) is an endangered species endemic to the pine forests of the southeastern United States. Deforestation and habitat alteration have severely affected Red-cockaded Woodpecker populations; current populations are isolated and most are declining. The species has been extirpated from significant areas of suitable or potentially suitable habitat. Previous efforts to relocate Red-cockaded Woodpecker breeding pairs met with limited success. The recent improvements in cavity-construction techniques and experience in translocating individual birds convinced us that it was time to revisit the issue of the reintroduction of breeding pairs to vacant habitat. JF - Auk AU - Rudolph, C D AU - Conner, R N AU - Carrie, D K AU - Schaefer, R R AD - Wildl. Habit. and Silvic. Lab., South. Forest Exp. Stn., USDA Forest Serv., Nacogdoches, TX 75962, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 914 EP - 916 VL - 109 IS - 4 SN - 0004-8038, 0004-8038 KW - Ecology Abstracts KW - Picoides borealis KW - wildlife management KW - USA, Texas KW - reintroduction KW - D 04700:Management KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16477324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Experimental+reintroduction+of+red-cockaded+woodpeckers.&rft.au=Rudolph%2C+C+D%3BConner%2C+R+N%3BCarrie%2C+D+K%3BSchaefer%2C+R+R&rft.aulast=Rudolph&rft.aufirst=C&rft.date=1992-01-01&rft.volume=109&rft.issue=4&rft.spage=914&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Picoides borealis; USA, Texas; wildlife management; reintroduction ER - TY - JOUR T1 - Hydrolysis of orange peel with pectinase and cellulase enzymes. AN - 16469562; 2918702 AB - Hydrolysis of polysaccharides in comminuted orange peel by commercial cellulase and pectinase enzymes has been investigated. High levels of conversion to monomeric sugars were observed after treatment with pectinase enzyme, but cellulase enzyme achieved only limited solubilization. The combination of cellulase and pectinase enzymes appears to be a most efficient system for enzymatic hydrolysis of polysaccharides in orange peel. JF - Biotechnology Letters AU - Grohmann, K AU - Baldwin, E A AD - USDA, ARS, SAA Citrus and Subtrop. Prod. Lab., 600 Ave. S, NW, Winter Haven, FL 33883, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1169 EP - 1174 VL - 14 IS - 12 SN - 0141-5492, 0141-5492 KW - cellulase KW - orange peel KW - pectinase KW - polysaccharides KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Citrus sinensis KW - hydrolysis KW - W2 32350:Carbohydrates KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16469562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Letters&rft.atitle=Hydrolysis+of+orange+peel+with+pectinase+and+cellulase+enzymes.&rft.au=Grohmann%2C+K%3BBaldwin%2C+E+A&rft.aulast=Grohmann&rft.aufirst=K&rft.date=1992-01-01&rft.volume=14&rft.issue=12&rft.spage=1169&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Letters&rft.issn=01415492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hydrolysis; Citrus sinensis ER - TY - JOUR T1 - Occurrence of alginate gene sequences among members of the pseudomonad rRNA homology groups I-IV. AN - 16459980; 2925901 AB - Total genomic DNA of 13 pseudomonads representing rRNA homology groups I-IV were screened for sequences homologous to four Pseudomonas aeruginosa alginate (alg) genes by Southern hybridization. Biotinylated probes for three structural genes (algA, algC and algD) and one regulatory gene (algR1) were prepared. Genomic DNA of strains representing group I (P. syringae pv. glycinea, P. viridiflava and P. corrugata ) hybridized with all four gene probes. Hybridizing fragments were of differing sizes, indicating that evolutionary divergence among group I members has occurred. P. corrugata has not been reported to synthesize alginate. Genomic DNA from representatives of groups II-IV gave no or very weak hybridization with the probes except for algC. This study indicates that the ability to produce alginic acid as an exopolysaccharide among the pseudomonads is restricted to members of rRNA homology group I in agreement with earlier physiological studies. JF - FEMS Microbiology Letters AU - Fett, W F AU - Wijey, C AU - Lifson, E R AD - Plant Sci. Res. Unit, USDA, ARS, ERRC, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 151 EP - 158 VL - 99 IS - 2-3 SN - 0378-1097, 0378-1097 KW - alginate KW - alginic acid KW - alg gene KW - Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - genes KW - Pseudomonas KW - production KW - sequence KW - N 14510:Occurrence, isolation & assay KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16459980?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology+Letters&rft.atitle=Occurrence+of+alginate+gene+sequences+among+members+of+the+pseudomonad+rRNA+homology+groups+I-IV.&rft.au=Fett%2C+W+F%3BWijey%2C+C%3BLifson%2C+E+R&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=99&rft.issue=2-3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology+Letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas; genes; sequence; production ER - TY - JOUR T1 - Enumeration and characterization of bacterial colonists of a submersed aquatic plant, Eurasian watermilfoil (Myriophyllum spicatum L.). AN - 16453094; 2920513 AB - A simple procedure for enumerating and grouping the bacterial colonists of Eurasian watermilfoil (Myriophyllum spicatum L.) is described. Colony characteristics of bacteria associated with M. spicatum were better defined and more stable on nutrient-poor, diluted nutrient broth agar than on high-nutrient media. Acinetobacter, Cytophaga, Flavobacterium, Moraxella, Pseudomonas and/or Alcaligenes , and Vibrio/Aeromonas spp., as well as two highly fastidious unidentified bacterial groups (gram-negative rods and gram-negative cocci), were associated with cultured watermilfoil during January, February, May, June, July, and August 1988. In Lake Wingra (Madison, Wis.), Micrococcus spp. and enterobacters were also associated with Eurasian watermilfoil during July, August, and October 1987. JF - Applied and Environmental Microbiology AU - Chand, T AU - Harris, R F AU - Andrews, J H AD - ARS-USDA, 45 Wiltshire Rd., Kearneysville, WV 25430-9802, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3374 EP - 3379 VL - 58 IS - 10 SN - 0099-2240, 0099-2240 KW - USA, Wisconsin, Madison, Wingra L. KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Myriophyllum spicatum KW - aquatic plants KW - Freshwater KW - colonization KW - population structure KW - bacteria KW - seasonal variations KW - population dynamics KW - Q1 08483:Species interactions: general KW - J 02905:Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16453094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Enumeration+and+characterization+of+bacterial+colonists+of+a+submersed+aquatic+plant%2C+Eurasian+watermilfoil+%28Myriophyllum+spicatum+L.%29.&rft.au=Chand%2C+T%3BHarris%2C+R+F%3BAndrews%2C+J+H&rft.aulast=Chand&rft.aufirst=T&rft.date=1992-01-01&rft.volume=58&rft.issue=10&rft.spage=3374&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - population structure; bacteria; aquatic plants; seasonal variations; population dynamics; colonization; Myriophyllum spicatum; Freshwater ER - TY - JOUR T1 - Evidence for arsenic essentiality. AN - 16447053; 2911021 AB - Recent studies have suggested that arsenic has a physiological role that affects the formation of various metabolites of methionine metabolism including taurine an the polyamines. The concentration of plasma taurine is decreased in arsenic-deprived rats and hamsters. The hepatic concentration of polyamines and specific activity of an enzyme necessary for the synthesis of spermidine and spermine, S-adenosylmethionine decarboxylase, are also decreased in arsenic-deprived rats. Thus, evidence has been obtained which indicates that arsenic is of physiological importance, especially when methionine metabolism is stressed. Any possible nutritional requirement by humans can be estimated only by using data from animal studies. The arsenic requirement for growing chicks and rats has been suggested to be near 25 ng/g diet. Thus, a possible human requirement is 12 mu g/day. The reported arsenic content of diets from various parts of the world indicates that the average intake of arsenic is in the range of 12-40 mu g. Fish, grain and cereal products contribute most arsenic to the diet. JF - Environmental Geochemistry and Health AU - Uthus, E O AD - USDA-ARS, Grand Forks Hum. Nutr. Res. Cent. P.O. Box 7166, University Station, Grand Forks, ND 58202-7166, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 55 EP - 58 VL - 14 IS - 2 SN - 0269-4042, 0269-4042 KW - arsenic KW - methionine KW - humans KW - Toxicology Abstracts; Health & Safety Science Abstracts KW - metabolism KW - diets KW - nutrients KW - physiology KW - X 24120:Food, additives & contaminants KW - H SE4.8.6:DIET UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16447053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geochemistry+and+Health&rft.atitle=Occurrence+of+alginate+gene+sequences+among+members+of+the+pseudomonad+rRNA+homology+groups+I-IV.&rft.au=Fett%2C+W+F%3BWijey%2C+C%3BLifson%2C+E+R&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=99&rft.issue=2-3&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology+Letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special issue: Arsenic. N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - arsenic; nutrients; physiology; diets; metabolism; humans ER - TY - JOUR T1 - A pathogenesis study of foot-and-mouth disease in cattle, using in situ hybridization. AN - 16435266; 2909041 AB - Eight calves were exposed in an aerosol chamber to nebulized foot-and-mouth disease virus. Animals were euthanized at intervals and various tissues examined by in situ hybridization using a biotinylated RNA probe corresponding to a portion of the viral gene coding for the polymerase enzyme. Large amounts of viral nucleic acid were found in coronary band, interdigital cleft and tongue as early as six hours postexposure, indicating a very rapid delivery from the portal of entry to the predilection sites for lesion development. This occurred well before the onset of viremia which by virus isolation was not detectable until 30 hours postexposure. The in situ hybridization signal in these tissues decreased in intensity and extent with time to focally positive areas, occasionally surrounding a vesicle. Other epidermal sites not normally thought of as sites for foot-and-mouth lesion development, such as carpus and eyelid, also had some viral nucleic acid detectable at various time intervals. In the lung by in situ hybridization, alveolar septa had viral nucleic acid early in infection (6-18 h postexposure) while later (36-96 h postexposure), the in situ hybridization signal was prominent in alveolar macrophages. JF - CAN. J. VET. RES./REV. CAN. RECH. VET. AU - Brown, C C AU - Meyer, R F AU - Olander, HJ AU - House, C AU - Mebus, CA AD - Foreign Anim. Dis. Lab., Natl. Vet. Serv. Lab., APHIS-USDA, P.O. Box 848, Greenport, NY 11944, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 189 EP - 193 VL - 56 IS - 3 KW - cattle KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Virology & AIDS Abstracts KW - foot-and-mouth disease virus KW - RNA KW - hybridization analysis KW - pathogenesis KW - foot-and-mouth disease KW - probes KW - W2 32410:Veterinary Medicine: Diagnosis KW - V 22142:Symptomatology, pathology & etiology KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16435266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CAN.+J.+VET.+RES.%2FREV.+CAN.+RECH.+VET.&rft.atitle=A+pathogenesis+study+of+foot-and-mouth+disease+in+cattle%2C+using+in+situ+hybridization.&rft.au=Brown%2C+C+C%3BMeyer%2C+R+F%3BOlander%2C+HJ%3BHouse%2C+C%3BMebus%2C+CA&rft.aulast=Brown&rft.aufirst=C&rft.date=1992-01-01&rft.volume=56&rft.issue=3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=CAN.+J.+VET.+RES.%2FREV.+CAN.+RECH.+VET.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - RNA; hybridization analysis; pathogenesis; probes; foot-and-mouth disease; foot-and-mouth disease virus ER - TY - JOUR T1 - Monophosphoryl lipid A-induced immune enhancement of Brucella abortus salt-extractable protein and lipopolysaccharide vaccines in BALB/c mice. AN - 16432161; 2906800 AB - A study was conducted to determine the effect of monophosphoryl lipid A (MPL) and trehalose dimycolate (TDM) as adjuvants on the protective responses in BALB/c mice vaccinated with Brucella abortus salt-extractable protein (BCSP) or proteinase-K treated B. abortus lipopolysaccharide (PKLPS). Mice were vaccinated with different doses of BCSP or PKLPS given alone or in combination with MPL or TDM. Mice were challenge-exposed 4 weeks later with virulent B. abortus strain 2308. Two weeks after challenge exposure, the number of B. abortus colony-forming units (CFU) per spleen, spleen weights, and spleen cell interleukin 1 production were measured. Serum IgG and IgM concentrations specific for vaccinal immunogens were measured before and after challenge exposure with B. abortus . JF - American Journal of Veterinary Research AU - Tabatabai, L B AU - Pugh, GW Jr AU - Stevens, M G AU - Phillips, M AU - McDonald, T J AD - USDA-ARS, Natl. Anim. Dis. Cent., P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1900 EP - 1907 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - lipid A KW - lipopolysaccharides KW - mice KW - monophosphoryl lipid A KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology KW - vaccines KW - immunological enhancement KW - Brucella abortus KW - brucellosis KW - J 02834:Vaccination and immunization KW - J 02862:Infection KW - F 06807:Active immunization KW - W2 32365:Vaccines KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16432161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Monophosphoryl+lipid+A-induced+immune+enhancement+of+Brucella+abortus+salt-extractable+protein+and+lipopolysaccharide+vaccines+in+BALB%2Fc+mice.&rft.au=Tabatabai%2C+L+B%3BPugh%2C+GW+Jr%3BStevens%2C+M+G%3BPhillips%2C+M%3BMcDonald%2C+T+J&rft.aulast=Tabatabai&rft.aufirst=L&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1900&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - vaccines; immunological enhancement; brucellosis; Brucella abortus ER - TY - JOUR T1 - Bacterial survival, lymph node changes, and immunologic response of cattle vaccinated with standard and mutant strains of Brucella abortus . AN - 16431989; 2906769 AB - Forty-eight cattle were used in 4 experiments; 6-week-old calves in experiments 1-3 (n = 24) and 10-month-old heifers in experiment 4 (n = 24). In experiments 1-3, 7 groups of 3 calves each were inoculated SC with 5 strains of Brucella abortus : virulent strain 2308 (2 groups), vaccine strain 19 (2 groups), and mutant strains RB51, 19 Delta 31K, and 19 Delta SOD. Sera and lymph node tissues were examined at 2-week intervals for evidence of infection. At postinoculation (PI) week 12, 2 calves in each group were given dexamethasone for 5 days. Calves were then euthanatized and lymphoid tissue, spleen, liver, and bone marrow were examined for evidence of B. abortus . JF - American Journal of Veterinary Research AU - Cheville, N F AU - Jensen, A E AU - Halling, S M AU - Tatum, F M AU - Morfitt, D C AU - Hennager, S G AU - Frerichs, WM AU - Schurig, G AD - Brucellosis Res. Unit, NADC-ARS, and Diag. Bacteriol. Lab., Anim. and Plant Health Insp. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1881 EP - 1888 VL - 53 IS - 10 SN - 0002-9645, 0002-9645 KW - cattle KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology KW - lymph nodes KW - Brucella abortus KW - strains KW - brucellosis KW - immune response KW - vaccination KW - mutants KW - J 02834:Vaccination and immunization KW - J 02862:Infection KW - F 06807:Active immunization KW - W2 32365:Vaccines KW - W2 32415:Veterinary Medicine: Therapy KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16431989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Bacterial+survival%2C+lymph+node+changes%2C+and+immunologic+response+of+cattle+vaccinated+with+standard+and+mutant+strains+of+Brucella+abortus+.&rft.au=Cheville%2C+N+F%3BJensen%2C+A+E%3BHalling%2C+S+M%3BTatum%2C+F+M%3BMorfitt%2C+D+C%3BHennager%2C+S+G%3BFrerichs%2C+WM%3BSchurig%2C+G&rft.aulast=Cheville&rft.aufirst=N&rft.date=1992-01-01&rft.volume=53&rft.issue=10&rft.spage=1881&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - lymph nodes; brucellosis; strains; immune response; vaccination; mutants; Brucella abortus ER - TY - JOUR T1 - Carrier state of channel catfish infected with Edwardsiella ictaluri . AN - 16431147; 2902661 AB - Channel catfish Ictalurus punctatus that were naturally exposed to Edwardsiella ictaluri were acquired from a catfish farmer and transported to the laboratory. The 6-month-old channel catfish had a normal appearance without symptoms of enteric septicemia of catfish (ESC). For 5 d, one group of channel catfish was given feed containing the antibiotic Romet-30) (8 kg/tonne) at a daily rate of 1% (about 20 g/fish), and the other group received feed without medication. About one-third of the channel catfish in the untreated group developed clinical signs of ESC and died within 3 d after transportation to the laboratory; survivors were killed after 11 d because of their poor condition. The group of channel catfish treated with Romet-30 had no signs of ESC or deaths caused by ESC. The presence of E. ictaluri in the trunk kidney of treated channel catfish was demonstrated by a microscopic immunofluorescence method and selective enrichment culture at 90 and 270 d. The percentage of treated channel catfish positive for the presence of E. ictaluri increased from about 40 to 70% between 90 and 270 d. The percentage of treated channel catfish positive for antibodies against E. ictaluri increased from 44 to 82% between 30 and 270 d. Challenge infection of these fish with E. ictaluri showed that most were protected from ESC. The results show that healthy channel catfish exposed to E. ictaluri and subsequently treated with Romet-30 can be carriers of E. ictaluri and may serve as a reservoir of infection for fish susceptible to ESC. JF - Journal of Aquatic Animal Health AU - Klesius, PH AD - Fish Dis. and Parasites Res. Lab., ARS-USDA, PO Box 952, Auburn, AL 36830, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 227 EP - 230 VL - 4 IS - 3 SN - 0899-7659, 0899-7659 KW - bacterial diseases KW - carriers KW - enteric septicemia KW - fish culture KW - pathogenic bacteria KW - septicaemia KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts B: Bacteriology; ASFA Aquaculture Abstracts KW - Edwardsiella ictaluri KW - epidemiology KW - Freshwater KW - Ictalurus punctatus KW - infectious diseases KW - immunology KW - J 02862:Infection KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16431147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Animal+Health&rft.atitle=Carrier+state+of+channel+catfish+infected+with+Edwardsiella+ictaluri+.&rft.au=Klesius%2C+PH&rft.aulast=Klesius&rft.aufirst=PH&rft.date=1992-01-01&rft.volume=4&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - pathogenic bacteria; infectious diseases; immunology; septicaemia; fish culture; epidemiology; bacterial diseases; carriers; Edwardsiella ictaluri; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Expression of Streptomyces sp. cholesterol oxidase in Lactobacillus casei . AN - 16428155; 2902637 AB - Three strains of Lactobacillus casei were electrotransformed with pNCO937, an 8.1-kb recombinant plasmid carrier of a Streptomyces sp. cholesterol oxidase gene. Transformation frequency was generally low and strain-dependent, ranging from 6 to 40 transformants/ mu g DNA. L. casei transformants stably maintained pNCO937 with no indication of deletion mutational events. Transformants produced active cholesterol oxidase and sonicated cells formed 4-cholesten-3-one from both free and lipoprotein-bound cholesterol. L. casei shows promise as a host suitable for studying heterologous gene expression in lactobacilli. JF - Applied Microbiology and Biotechnology AU - Somkuti, G A AU - Solaiman, DKY AU - Steinberg, D H AD - USDA-ARS, Eastern Reg. Res. Cent., 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 330 EP - 334 VL - 37 IS - 3 SN - 0175-7598, 0175-7598 KW - cholesterol oxidase KW - Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Lactobacillus casei KW - transformation KW - Streptomyces KW - gene expression KW - G 07320:Bacterial genetics KW - J 02728:Enzymes KW - N 14674:Transformation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16428155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Survival+and+growth+of+stem+fragments+from+various+Hydrilla+races&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1992-01-01&rft.volume=55&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces; Lactobacillus casei; gene expression; transformation ER - TY - JOUR T1 - Identification of floral compounds of night-blooming jessamine attractive to cabbage looper moths. AN - 16427547; 2900319 AB - Collections of volatile chemicals emitted from flowers of night-blooming jessamine, Cestrum nocturnum L., yielded three principal chemicals; benzaldehyde, benzyl acetate, and phenylacetaldehyde. Female cabbage looper moths, Trichoplusia ni (Huebner), exhibited upwind oriented flight and contact with dispensers that released an artificial blend of synthetic compounds similar to the natural blend from jessamine flowers. Observed behaviors in response to phenylacetaldehyde alone were not significantly different from those to the complete blend, although moths also oriented to benzyl acetate. Based on these results, phenylacetaldehyde alone may provide optimum attraction of cabbage looper moths to the flowers and to artificial lures. The plants displayed a diel periodicity in the release of these compounds coincident with the diel pattern of feeding activity of cabbage looper moths. Moth feeding occurs principally at and immediately after dusk, and the production of the floral odor peaked in the first 2 h of the scotophase. JF - Environmental Entomology AU - Heath, R R AU - Landolt, P J AU - Dueben, B AU - Lenczewski, B AD - Insect Attract., Behav., and Basic Biol. Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 854 EP - 859 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - emission KW - feeding behaviour KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts; Chemoreception Abstracts KW - Lepidoptera KW - Cestrum nocturnum KW - Noctuidae KW - flowers KW - attractants KW - Trichoplusia ni KW - volatiles KW - diel periodicity KW - D 04659:Insects KW - Y 25693:Insects KW - Z 05175:Pheromones, repellents & attractants KW - R 18052:Feeding UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16427547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Identification+of+floral+compounds+of+night-blooming+jessamine+attractive+to+cabbage+looper+moths.&rft.au=Heath%2C+R+R%3BLandolt%2C+P+J%3BDueben%2C+B%3BLenczewski%2C+B&rft.aulast=Heath&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=854&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trichoplusia ni; Cestrum nocturnum; Noctuidae; Lepidoptera; attractants; volatiles; flowers; diel periodicity ER - TY - JOUR T1 - Effects of temperature and age on daily changes in pheromone titer in laboratory-reared and wild gypsy moth (Lepidoptera: Lymantriidae). AN - 16426468; 2900113 AB - Effects of temperature, age, and photoperiod on pheromone titer in the pheromone gland of gypsy moth, Lymantria dispar (L.), were studied with the aid of gas chromatography. In laboratory-reared females, daily rhythmic changes in pheromone content were observed with peaks occurring toward the evening and increasing in quantity with female age. In wild females held in outdoor cages under very hot afternoon conditions, maximum pheromone titer was observed in the early morning and minimum titer in the afternoon. However, pheromone-oriented flight activity of the wild males was lowest in the morning and highest in the afternoon. Temperatures of 33 and 35 degree C caused decline in pheromone titer to near zero in laboratory-reared and wild females, respectively. Calling behavior was not dependent on the presence of pheromone in the gland; it occurred in newly emerged females before pheromone could be detected and in females held at temperatures that inhibited pheromone production. JF - Environmental Entomology AU - Giebultowicz, J M AU - Webb, R E AU - Raina, A K AU - Ridgway, R L AD - Insect Neurobiol. and Hormone Lab., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 822 EP - 826 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - temperature KW - effects on KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts; Chemoreception Abstracts KW - Lepidoptera KW - levels KW - age KW - flight activity KW - sex pheromone KW - Lymantria dispar KW - D 04659:Insects KW - Y 25653:Insects KW - R 18051:Reproductive behavior KW - Z 05179:Glands & secretions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16426468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+temperature+and+age+on+daily+changes+in+pheromone+titer+in+laboratory-reared+and+wild+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29.&rft.au=Giebultowicz%2C+J+M%3BWebb%2C+R+E%3BRaina%2C+A+K%3BRidgway%2C+R+L&rft.aulast=Giebultowicz&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=822&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lepidoptera; Lymantria dispar; age; sex pheromone; levels; flight activity ER - TY - JOUR T1 - The Anaplasma marginale msp5 gene encodes a 19-kilodalton protein conserved in all recognized Anaplasma species. AN - 16425832; 2905101 AB - Immunization with Anaplasma marginale outer membranes induced immunity against clinical disease which correlated with antibody titer to outer membrane proteins, including a 19-kDa protein. This 19-kDa protein, designated major surface protein 5 (MSP-5), was encoded by a single-copy 633-bp gene. The molecular mass of MSP-5, defined in immunoblots by binding to monoclonal antibody ANAF16C1, was conserved among all recognized species of Anaplasma : A. marginale, A. centrale , and A. ovis . Recombinant MSP-5, which absorbed the antibody reactivity of bovine immune serum to native MSP-5, was recognized by anti-A. marginale and anti-A. centrale immune sera in a competitive inhibition assay with monoclonal antibody ANAF16C1. The presence of antibody to the epitope defined by monoclonal antibody ANAF16C1 in all postinfection sera tested indicates that this epitope is a potential diagnostic antigen for use in identifying persistently infected cattle. JF - Infection and Immunity AU - Visser, E S AU - McGuire, T C AU - Palmer, G H AU - Davis, W C AU - Shkap, V AU - Pipano, E AU - Knowles, D P, Jr AD - Anim. Dis. Res. Unit, USDA-ARS, Service, Pullman, WA 99164-7030, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 5139 EP - 5144 VL - 60 IS - 12 SN - 0019-9567, 0019-9567 KW - msp5 gene KW - MSP-5 protein KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - membrane proteins KW - genes KW - conservation KW - outer membranes KW - identification KW - Anaplasma marginale KW - G 07320:Bacterial genetics KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16425832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=The+Anaplasma+marginale+msp5+gene+encodes+a+19-kilodalton+protein+conserved+in+all+recognized+Anaplasma+species.&rft.au=Visser%2C+E+S%3BMcGuire%2C+T+C%3BPalmer%2C+G+H%3BDavis%2C+W+C%3BShkap%2C+V%3BPipano%2C+E%3BKnowles%2C+D+P%2C+Jr&rft.aulast=Visser&rft.aufirst=E&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5139&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anaplasma marginale; genes; identification; conservation; membrane proteins; outer membranes ER - TY - JOUR T1 - Almond brown line and decline: A new disease probably caused by a mycoplasma-like organism. AN - 16425027; 2899724 AB - Young almond (Prunus dulcis , cvs Carmel, Peerless and Price) orchards established on the plum rootstock Marianna 2624 (P. cerasifera x P. munsoniana ) contained tress that exhibited poor terminal shoot growth and wilted, chlorotic leaves. The scion/rootstock graft union showed an external splitting of the bark and an internal line of necrotic bark tissues that extended into the woody cylinder of the union, which was deeply pitted. Affected trees declined. The disease was named almond brown line and decline (ABLD). Graft-inoculations on the almond scion portion of healthy trees, but not the plum rootstock portion, with the peach yellow leafroll mycoplasma-like organism (PYLR-MLO) caused symptoms resembling ABLD. Laboratory and glasshouse assays of several symptomatic trees did not detect tomato ringspot virus and two ilarviruses. These results suggest that an MLO, possibly PYLR-MLO, may be the causal agent of ABLD and that Marianna 2624 is probably resistant to the PYLR-MLO. JF - Annals of Applied Biology AU - Uyemoto, J K AU - Connell, J H AU - Hasey, J K AU - Luhn, C F AD - USDA-ARS, Dep. Plant Pathol., Univ. California, Davis, CA 95616, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 417 EP - 424 VL - 120 IS - 3 SN - 0003-4746, 0003-4746 KW - almond brown line and decline KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Prunus dulcis KW - infection KW - mycoplasma-like organisms KW - J 02880:Plant diseases KW - A 01027:Fruit trees UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16425027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+Applied+Biology&rft.atitle=Almond+brown+line+and+decline%3A+A+new+disease+probably+caused+by+a+mycoplasma-like+organism.&rft.au=Uyemoto%2C+J+K%3BConnell%2C+J+H%3BHasey%2C+J+K%3BLuhn%2C+C+F&rft.aulast=Uyemoto&rft.aufirst=J&rft.date=1992-01-01&rft.volume=120&rft.issue=3&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Annals+of+Applied+Biology&rft.issn=00034746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus dulcis; mycoplasma-like organisms; infection ER - TY - JOUR T1 - DNA structures contributing to the instability of recombinant plasmids in Streptococcus thermophilus . AN - 16422609; 2905212 AB - Bifunctional shuttle vector (pBN183) and recombinant plasmids (pDCO2 and pDCO3) carrying a Streptomyces cholesterol oxidase gene (choA) were deleted to varying degrees in Streptococcus thermophilus . Restriction mapping of the deleted plasmids led to the identification of deletion prone regions in the transforming DNAs. Sequence analysis revealed that direct repeats and hairpin structures occurred in these regions, suggesting that they are deleterious to the stability of plasmids in S. thermophilus . JF - Biotechnology Letters AU - Solaiman, DKY AU - Somkuti, G A AD - USDA-ARS, Eastern Reg. Res. Cent., 600 E. Mermaid Lane, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 753 EP - 758 VL - 14 IS - 9 SN - 0141-5492, 0141-5492 KW - plasmid pBN183 KW - plasmid pDCO2 KW - plasmid pDCO3 KW - var.thermophilus KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - deletion KW - restriction endonuclease mapping KW - stability KW - plasmids KW - Streptococcus salivarius KW - N 14682:Cloning vectors KW - J 02760:Plasmids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16422609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Letters&rft.atitle=DNA+structures+contributing+to+the+instability+of+recombinant+plasmids+in+Streptococcus+thermophilus+.&rft.au=Solaiman%2C+DKY%3BSomkuti%2C+G+A&rft.aulast=Solaiman&rft.aufirst=DKY&rft.date=1992-01-01&rft.volume=14&rft.issue=9&rft.spage=753&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Letters&rft.issn=01415492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptococcus salivarius; plasmids; stability; restriction endonuclease mapping; deletion ER - TY - JOUR T1 - Ovine pulmonary surfactant induces killing of Pasteurella haemolytica, Escherichia coli , and Klebsiella pneumoniae by normal serum. AN - 16419813; 2905375 AB - Pulmonary surfactant has been shown to play an important role in bacterial clearance at the alveolar surface in the lung. This study describes a bactericidal mechanism in which ovine pulmonary surfactant induces killing of Pasteurella haemolytica by normal serum. To demonstrate killing, six bacterial species were incubated first with pulmonary surfactant for 60 min at 37 degree C and then with serum for an additional 60 min at 37 degree C. P. haemolytica type A1 strains 82-25 and L101, a P. haemolytica type 2 strain, Escherichia coli , and Klebsiella pneumoniae were susceptible and Pasteurella multocida, Serratia marcescens , and Pseudomonas aeruginosa were not susceptible to killing by ovine pulmonary surfactant and normal serum. No bacteria incubated with bovine pulmonary surfactant were killed by normal serum. Although the species origin of pulmonary surfactant was selective, the species origin of serum was not. P. haemolytica incubated with ovine pulmonary surfactant was killed by fetal calf serum, gnotobiotic calf serum, pooled normal sheep serum, pooled normal rabbit serum, and pooled guinea pig serum. Ultrastructurally, killed P. haemolytica suspensions contained dead cells and cells distorted with vacuoles between the cytoplasmic membrane and the cytoplasm. The mechanism of killing did not correlate with concentrations of complement or lysozyme or titers of residual antibody in either the pulmonary surfactant or the serum, and killing was reduced by preincubation of surfactant with P. haemolytica lipopolysaccharide. Preliminary characterization of both surfactant and serum implicate a low-molecular-weight proteinaceous component in the surfactant and serum albumin in the serum. This mechanism may help clear certain gram-negative bacteria from the lungs of sheep as a part of the pulmonary innate defense system. JF - Infection and Immunity AU - Brogden, KA AD - Respir. Dis. Res. Unit, Natl. Anim. Dis. Cent., ARS/USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 5182 EP - 5189 VL - 60 IS - 12 SN - 0019-9567, 0019-9567 KW - effects on KW - sheep KW - Microbiology Abstracts B: Bacteriology KW - lung KW - Pasteurella haemolytica KW - surfactants KW - Escherichia coli KW - serum bactericidal activity KW - Klebsiella pneumoniae KW - J 02862:Infection KW - J 02833:Immune response and immune mechanisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16419813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=Ovine+pulmonary+surfactant+induces+killing+of+Pasteurella+haemolytica%2C+Escherichia+coli+%2C+and+Klebsiella+pneumoniae+by+normal+serum.&rft.au=Brogden%2C+KA&rft.aulast=Brogden&rft.aufirst=KA&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5182&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pasteurella haemolytica; Escherichia coli; Klebsiella pneumoniae; serum bactericidal activity; lung; surfactants ER - TY - JOUR T1 - Gypsy moth invasion in North America: A quantitative analysis. AN - 16417956; 2901696 AB - The gypsy moth, Lymantria dispar (L.), was accidentally introduced to North America in 1868 or 1869. Since that time, the range of this insect has spread to include most of the northeastern states in the US and eastern provinces of Canada. We compiled historical records of gypsy moth invasion in North America and assembled these data in a geographical information system (GIS). Data indicated that three distinct periods occurred during which spread rates differed: a a high rate (9.45 km/year) from 1900 to 1915, a low rate (2.82 km/year) from 1916 to 1965, and a very high rate (20.78 km/year) from 1966 to 1990. Furthermore, expansion was slower (7.61 km/year) during the period of 1966-1990 in counties where the mean minimum temperature was less than 7 degree (C). The rate of range expansion was independently calculated as 2.5 km/year from estimates of r, the intrinsic rate of increase, and D, the diffusion coefficient (dispersal magnitude) and a simple spread model. JF - Journal of Biogeography AU - Liebhold, AM AU - Halverson, JA AU - Elmes, G A AD - Northeast. Forest Exp. Stn., USDA Forest Serv., 180 Canfield St., Morgantown, WV 26505, SUA Y1 - 1992 PY - 1992 DA - 1992 SP - 513 EP - 520 VL - 19 IS - 5 SN - 0305-0270, 0305-0270 KW - Ecology Abstracts; Entomology Abstracts KW - North America KW - quantitation KW - Lepidoptera KW - Lymantriidae KW - population establishment KW - invasions KW - pest attack KW - Lymantria dispar KW - Z 05204:Dispersal & migration KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16417956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biogeography&rft.atitle=Gypsy+moth+invasion+in+North+America%3A+A+quantitative+analysis.&rft.au=Liebhold%2C+AM%3BHalverson%2C+JA%3BElmes%2C+G+A&rft.aulast=Liebhold&rft.aufirst=AM&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Lymantriidae; Lepidoptera; North America; quantitation; pest attack; invasions; population establishment ER - TY - JOUR T1 - Effect of weather variable on methyl parathion disappearance from cotton foliage. AN - 16416620; 2897870 AB - Foliar persistence times of insecticide residues affect the insecticides efficacy, its potential for pollution of nontarget areas, and worker reentry times. Information concerning pesticide foliar persistence is needed to develop and improve models that predict the environmental fate of applied pesticides. Weather factors reported to affect the rate of pesticide disappearance from foliage include rain, wind, temperature, sunlight, and relative humidity (Willis and McDowell, 1987). Rain has the most dramatic effect on residues, especially if it occurs within 24 h after pesticide application. The effects of weather variables on pesticide persistence on plants has been studied extensively by Nigg and coworkers in Florida citrus (Nigg et al., 1977a, 1977b, 1978, 1979; Nigg and Allen, 1979; Nigg and Stamper, 1980). The importance of one variable over the others in being a better predictor of pesticide disappearance from foliage usually depends on the prevailing environmental conditions during individual studies. JF - Bulletin of Environmental Contamination and Toxicology AU - Willis, G H AU - McDowell, L L AU - Smith, S AU - Southwick, L M AD - USDA-ARS, Soil and Water Res. Unit, P.O. Box 25071, University Station, Baton Rouge, LA 70894-5071, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 394 EP - 400 VL - 48 IS - 3 SN - 0007-4861, 0007-4861 KW - methyl parathion KW - fate KW - Pollution Abstracts KW - insecticides KW - plants KW - meteorology KW - Gossypium hirsutum KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16416620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Effect+of+weather+variable+on+methyl+parathion+disappearance+from+cotton+foliage.&rft.au=Willis%2C+G+H%3BMcDowell%2C+L+L%3BSmith%2C+S%3BSouthwick%2C+L+M&rft.aulast=Willis&rft.aufirst=G&rft.date=1992-01-01&rft.volume=48&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Gossypium hirsutum; insecticides; meteorology; plants ER - TY - JOUR T1 - Fermentation of xylans by Butyrivibrio fibrisolvens and Thermoanaerobacter strains B6A: Utilization of uronic acids and xylanolytic activities. AN - 16406603; 2889801 AB - Butyrivibrio fibrisolvens and Thermoanaerobacter strain B6A are xylanolytic anaerobes isolated from rumen and geothermal sources respectively. Both organisms fermented larchwood xylan, oatspelt xylan, or 4-O-methylglucuronoaxylan, extensively utilizing both the monosaccharide (glucose, xylose, arabinose) and uronic acid components. Citrus pectin or polygalacturonate also supported growth of both organisms, but only B. fibrisolvens was able to use the monomers glucuronate or galacturonate as the sole added energy source. Strain B6A was able to utilize these two uronic acids when glucose, xylose, arabinose, or oatspelt xylan was also provided as a second energy source. Xylanase, xylosidase, and arabinofuranosidase activities were found to be produced by strain B6A, but the levels and distribution (cell bound vs. culture fluid) were influenced by growth substrate. JF - Current Microbiology AU - Hespell, R B AD - Ferment. Biochem. Res., Natl. Cent. Agric. Util. Res., USDA, 1815 University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 189 EP - 195 VL - 25 IS - 4 SN - 0343-8651, 0343-8651 KW - xylan KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - cellulolytic enzymes KW - fermentation KW - Butyrivibrio fibrisolvens KW - Thermoanaerobacter KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16406603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Fermentation+of+xylans+by+Butyrivibrio+fibrisolvens+and+Thermoanaerobacter+strains+B6A%3A+Utilization+of+uronic+acids+and+xylanolytic+activities.&rft.au=Hespell%2C+R+B&rft.aulast=Hespell&rft.aufirst=R&rft.date=1992-01-01&rft.volume=25&rft.issue=4&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Butyrivibrio fibrisolvens; Thermoanaerobacter; fermentation; cellulolytic enzymes ER - TY - JOUR T1 - Enzymatic characterization of subcellular samples from gypsy moth larval midgut following differential centrifugation and fractionation on Percoll-sucrose gradient. AN - 16405147; 2891729 AB - A method is described for isolation of an enriched fraction of plasma membranes from gypsy moth (Lymantria dispar ) larval midgut tissue. Following differential centrifugation of tissue homogenate, a microsomal sample is obtained and fractionated on a Percoll)-sucrose gradient that yields 2 distinct regions of high protein concentration: one enriched in plasma membranes, the other in mitochondrial membranes. The procedure is relatively rapid, being completed within approximately 5 h. Protein yields and accompanying specific activities are reported for marker enzymes used to indicate the presence of plasma membranes (leucine aminopeptidase and alkaline phosphatase), endoplasmic reticulum (NADPH-cytochrome c reductase), and mitochondria (succinate dehydrogenase). The apparent differences between the plasma membrane enriched fraction vs. brush border membrane vesicles prepared from insect midguts are discussed, as is the suitability of the plasma membrane enriched fraction for ATP-dependent calcium ion transport studies. JF - Archives of Insect Biochemistry and Physiology AU - Sheppard, CA AU - Loeb, MJ AD - USDA-ARS, Insect Biocontrol Lab., Build. 011A, Rm. 214, BARC-W., Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 205 VL - 21 IS - 3 SN - 0739-4462, 0739-4462 KW - Lymantria dispar KW - enzymatic activity KW - isolation KW - larvae KW - midgut KW - plasma membranes KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16405147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Insect+Biochemistry+and+Physiology&rft.atitle=Enzymatic+characterization+of+subcellular+samples+from+gypsy+moth+larval+midgut+following+differential+centrifugation+and+fractionation+on+Percoll-sucrose+gradient.&rft.au=Sheppard%2C+CA%3BLoeb%2C+MJ&rft.aulast=Sheppard&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Archives+of+Insect+Biochemistry+and+Physiology&rft.issn=07394462&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - larvae; isolation; plasma membranes; enzymatic activity; midgut ER - TY - JOUR T1 - Tropical forests as sinks of atmospheric carbon. AN - 16402951; 2891476 AB - Changes in land use and rates of carbon accumulation by land use including mature, logged, and fallow tropical forests, and degraded tropical lands are used to estimate the role that the tropical landscape serves as sinks of atmospheric carbon. Results indicate that in 1980 tropical lands may remove between 1.5 and 3.2 Pg C from the atmosphere. We excluded from the analysis some 900 million ha of open tropical forests that could also be removing carbon from the atmosphere and an additional 0.5-0.6 Pg C year super(-1) sink associated with carbon export by rivers and in wood products. Our analysis challenges assumptions about the steady-state condition of the carbon budget of mature tropical forests and suggests that large areas of the tropical landscape are recovering from disturbance and act as atmospheric carbon sinks. We focus attention on sinks of atmospheric carbon only. In 1980, the estimated accumulation of carbon in the recovering landscape was equal to the net carbon flux due to tropical deforestation. JF - Forest Ecology and Management AU - Lugo, A E AU - Brown, S AD - Inst. Trop. For., USDA Forest Serv. Southern Forest Exp. Stn., Call Box 25000, Rio Piedras, PR 00928-2500, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 239 EP - 255 VL - 54 IS - 1-4 SN - 0378-1127, 0378-1127 KW - carbon sinks KW - carbon KW - Ecology Abstracts KW - forests KW - tropical environment KW - atmospheric conditions KW - reduction KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16402951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Tropical+forests+as+sinks+of+atmospheric+carbon.&rft.au=Lugo%2C+A+E%3BBrown%2C+S&rft.aulast=Lugo&rft.aufirst=A&rft.date=1992-01-01&rft.volume=54&rft.issue=1-4&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - atmospheric conditions; tropical environment; forests; reduction ER - TY - JOUR T1 - COP1, an Arabidopsis regulatory gene, encodes a protein with both a zinc-binding motif and a G sub( beta ) homologous domain. AN - 16394513; 2876215 AB - Plant seedling development is capable of following 1 of 2 distinct morphogenic pathways: Skotomorphogenesis in darkness and photomorphogenesis in light. Dark-grown Arabidopsis seedlings with recessive mutations at the constitutively photomorphogenic (COP1) locus indicate that the wild-type COP1 protein represses photomorphogenesis in darkness and that light reverses this repressive activity. Using a T-DNA-tagged mutant, we have cloned the COP1 locus. The amino-terminal half of the encoded protein contains a conserved zinc-binding motif, whereas the carboxyl-terminal half contains a domain homologous to the WD-40 repeat motif of G sub( beta ) proteins. The presence of both a putative DNA-binding motif and a G protein-related domain in a single polypeptide suggests that COP1 may be the first of a new class of regulatory molecules. JF - Cell AU - Deng, Xing-Wang AU - Matsui, M AU - Wei, Ning AU - Wagner, D AU - Chu, A M AU - Feldmann, KA AU - Quail, PH AD - Univ. California, Berkeley, USDA Plant Gene, Expression Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 791 EP - 801 VL - 71 IS - 5 SN - 0092-8674, 0092-8674 KW - Arabidopsis KW - COP1 gene KW - genes KW - guanine nucleotide-binding protein KW - nucleotide sequence KW - zinc finger KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - N 14640:Structure & sequence KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16394513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Tropical+forest+biomass+estimation+from+truncated+stand+tables.&rft.au=Gillespie%2C+AJR%3BBrown%2C+S%3BLugo%2C+A+E&rft.aulast=Gillespie&rft.aufirst=AJR&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; genes ER - TY - JOUR T1 - Sensitive detection and identification of mycoplasma-like organisms in plants by polymerase chain reactions. AN - 16394219; 2882834 AB - DNA amplification by polymerase chain reactions (PCR) was employed to detect host plant infection by several mycoplasma-like organisms (MLOs), including the aster yellows (AY), dwarf aster yellows (DAY), and periwinkle little leaf (O-1) MLOs. For PCR, two pairs of oligonucleotide primers, designated AY18pm and AY10pm, respectively, were synthesized on the basis of partial sequences of cloned AY MLO DNA fragments AY18 and AY10. Reaction mixtures containing primer pair AY18pm yielded a DNA product of 1.6 Kbp, when template consisted of DNA extracted from AY MLO- or DAY MLO-infected Catharanthus roseus (periwinkle). A DNA product of 1.0 Kbp was obtained with primer pair AY19pm, when template consisted of DNA extracted from C. roseus infected by AYMLO, DAY MLO, or periwinkle little leaf (strain O-1) MLO. MLO-specific bands were observed when reaction mixtures contained as little as 5 pg total nucleic acid from infected plants. No PCR product was observed when reaction mixtures contained only DNA from healthy plants or DNA from plants infected by western X MLO or by tomato big bud MLO. The findings indicated that the PCR system is useful for sensitive detection and differentiation of MLOs in infected hosts. JF - Biochemical and Biophysical Research Communications AU - Schaff, D AU - Lee, Ing-Ming AU - Davis, R E AD - Microbiol. and Plant Pathol. Lab., ARS-USDA, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1503 EP - 1509 VL - 186 IS - 3 SN - 0006-291X, 0006-291X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Catharanthus roseus KW - detection KW - mycoplasma-like organisms KW - polymerase chain reaction KW - A 01028:Others KW - J 02710:Identification, taxonomy and typing KW - W2 32425:Plant Diseases: Diagnosis KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16394219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Relations+between+activity+of+Dendroctonus+rufipennis+Kirby+on+Lutz+spruce+and+blue+stain+associated+with+Leptographium+abietinum+%28Peck%29+Wingfield.&rft.au=Reynolds%2C+K+M&rft.aulast=Reynolds&rft.aufirst=K&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - detection; mycoplasma-like organisms; polymerase chain reaction; Catharanthus roseus ER - TY - JOUR T1 - Insect cuticle-degrading enzymes from the entomogenous fungus Beauveria bassiana . AN - 16392438; 2865951 AB - Beauveria bassiana is a promising agent for biological control of agricultural insect pests. Its broad host range includes both the Greater Wax Moth (Galleria mellonella ) and the cabbage looper (Trichoplusia ni ). Five strains of B. bassiana from the Agricultural Research Service Culture Collection were obtained and grown on defined media and a medium containing purified cuticle from either G. mellonella or T. ni . The production of cuticle-degrading enzymes (such as proteases, chitinases, and esterase) was examined. Natural strain variability in enzyme levels was significant, and there was no evidence of coordinated expression. Further, enzyme expression differed considerably as a function of cuticle source. The results suggest that it may be possible to tailor biological control agents against specific targets. Natural strain variability could be used to rationally develop improved mycoinsecticides. JF - Fungal Genetics and Biology AU - Gupta, S C AU - Leathers, T D AU - El-Sayed, G N AU - Ignoffo, C M AD - Biol. Control Infects Lab., USDA, ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 132 EP - 137 VL - 16 IS - 2 SN - 0147-5975, 0147-5975 KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Pyralidae KW - Trichoplusia ni KW - cuticles KW - Beauveria bassiana KW - degradation KW - biological control KW - enzymes KW - Lepidoptera KW - Noctuidae KW - Galleria mellonella KW - entomopathogenic fungi KW - Insecta KW - A 01006:Enzymes & cofactors KW - K 03020:Fungi KW - Z 05182:Pathology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16392438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fungal+Genetics+and+Biology&rft.atitle=Insect+cuticle-degrading+enzymes+from+the+entomogenous+fungus+Beauveria+bassiana+.&rft.au=Gupta%2C+S+C%3BLeathers%2C+T+D%3BEl-Sayed%2C+G+N%3BIgnoffo%2C+C+M&rft.aulast=Gupta&rft.aufirst=S&rft.date=1992-01-01&rft.volume=16&rft.issue=2&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Fungal+Genetics+and+Biology&rft.issn=01475975&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - cuticles; biological control; degradation; enzymes; entomopathogenic fungi; Pyralidae; Trichoplusia ni; Beauveria bassiana; Noctuidae; Galleria mellonella; Lepidoptera; Insecta ER - TY - JOUR T1 - Purification and characterization of wheat alpha -gliadin synthesized in the yeast, Saccharomyces cerevisiae . AN - 16392425; 2874075 AB - The development of efficient methods for production and purification of plant seed storage proteins in heterologous microbial hosts would facilitate structure-function studies of these proteins. This report describes such methods applied to the production and isolation of wheat alpha -gliadin, a prolamine-type seed storage protein, from Saccharomyces cerevisiae . The alpha -gliadin isolated from yeast elutes at the same position in HPLC as the A-gliadin fraction purified from wheat flour. N-terminal amino acid (aa) sequencing reveals that the signal peptide is removed from the gliadin precursor in yeast cells. About two-third of the molecules have the same N terminus as A-gliadin made in wheat endosperm cells. The remaining third of the alpha -gliadin is apparently cleaved at a similar processing site three aa closer to the N terminus of the prepeptide. JF - Gene AU - Blechl, A E AU - Thrasher, K S AU - Vensel, W H AU - Greene, F C AD - USDA-ARS, Western Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 119 EP - 127 VL - 116 IS - 2 SN - 0378-1119, 0378-1119 KW - Saccharomyces cerevisiae KW - Triticum aestivum KW - alpha -gliadin KW - characterization KW - purification KW - synthesis KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03025:Fungi KW - W2 32340:Other peptides, proteins, amino acids KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16392425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Gene&rft.atitle=Purification+and+characterization+of+wheat+alpha+-gliadin+synthesized+in+the+yeast%2C+Saccharomyces+cerevisiae+.&rft.au=Blechl%2C+A+E%3BThrasher%2C+K+S%3BVensel%2C+W+H%3BGreene%2C+F+C&rft.aulast=Blechl&rft.aufirst=A&rft.date=1992-01-01&rft.volume=116&rft.issue=2&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Gene&rft.issn=03781119&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - characterization; purification; synthesis ER - TY - JOUR T1 - Pathogenicity of porcine enterotoxigenic Escherichia coli that do not express K88, K99, F41, or 987P adhesins. AN - 16387519; 2879738 AB - Three-week-old weaned and colostrum-deprived neonatal (< 1 day old) pigs were inoculated to determine the pathogenicity of 2 enterotoxigenic Escherichia coli isolates that do not express K88, K99, F41, or 987P adhesins (strains 2134 and 2171). Strains 2134 and 2171 were isolated from pigs that had diarrhea after weaning attributable to enterotoxigenic E. coli infection. We found that both strains of E. coli adhered in the ileum and caused diarrhea in pigs of both age groups. Indirect immunofluorescence with these absorbed antisera revealed adherent bacteria in frozen sections of ileum from pigs infected with either strain. We concluded that these strains are pathogenic and express a common surface antigen that may be a novel adhesin in E. coli strains that cause diarrhea in weaned pigs. JF - American Journal of Veterinary Research AU - Casey, T A AU - Nagy, B AU - Moon, H W AD - Physiopathol. Res. Unit, Natl. Anim. Dis. Cent., USDA-ARS, P.O. Bxo 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1488 EP - 1492 VL - 53 IS - 9 SN - 0002-9645, 0002-9645 KW - adhesins KW - pigs KW - Toxicology Abstracts; Microbiology Abstracts B: Bacteriology KW - expression KW - Escherichia coli KW - pathogenicity KW - J 02862:Infection KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16387519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Differences+in+Monterey+pine+pest+populations+in+urban+and+natural+forests.&rft.au=Nowak%2C+D+J%3BMcBride%2C+J+R&rft.aulast=Nowak&rft.aufirst=D&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; pathogenicity; expression ER - TY - JOUR T1 - Spatial characteristics and effects of fall density and weather on overwintering loss of pear psylla (Homoptera: Psyllidae). AN - 16386947; 2872170 AB - Overwintering loss of pear psylla, Cacopsylla pyricola Foerster, in the Yakima area of Washington and the Medford area of Oregon, was estimated as the difference between the peak beat tray count obtained in fall and the peak count obtained the following spring. Thirty five orchards were sampled over 13 yr at Yakima, and 12 orchards were sampled for 10 yr at Medford. Overwintering loss increased linearly with peak fall counts. Loss coefficients were greater than or equal to 0.90 in three of four regions at Yakima and in all 12 orchards at Medford. Peak spring counts were independent of peak fall counts in three of four regions at Yakima and at 6 of 12 orchards at Medford. At Yakima, peak spring count was positively correlated with November precipitation and negatively correlated with November and January temperature; overwintering loss increased with increasing January temperature and decreased with increasing November precipitation. JF - Environmental Entomology AU - Horton AU - Higbee, B S AU - Unruh, T R AU - Westigard, PH AD - USDA-ARS, 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1319 EP - 1332 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - effects on KW - Entomology Abstracts; Ecology Abstracts KW - population density KW - population decline KW - Psyllidae KW - spatial distribution KW - overwintering KW - weather KW - Homoptera KW - Cacopsylla pyricola KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Spatial+characteristics+and+effects+of+fall+density+and+weather+on+overwintering+loss+of+pear+psylla+%28Homoptera%3A+Psyllidae%29.&rft.au=Horton%3BHigbee%2C+B+S%3BUnruh%2C+T+R%3BWestigard%2C+PH&rft.aulast=Horton&rft.aufirst=&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1319&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cacopsylla pyricola; Psyllidae; Homoptera; overwintering; weather; spatial distribution; population density; population decline ER - TY - JOUR T1 - Coyote coexistence with wolves on the Kenai Peninsula, Alaska. AN - 16386863; 2881009 AB - Coyote food habits, home range, and interactions with wolves were examined on the Kenai Peninsula, Alaska (1976-1980), to determine mechanisms of competition between the two species. Scat analyses (percent frequency occurrence) indicated coyotes relied primarily on snowshoe hare, porcupine, and small mammals. Coyote home range overlapped those of wolves and averaged 104.0 plus or minus 44.6 (SE) and 70.2 plus or minus 10.4 km super(2) for males and females, respectively. The ratio of coyotes to wolves captured on public roads was 10:1, while the ratio on roads closed to vehicles access was 0.71:1. Eight instances of wolves killing coyotes are reported. Lack of or minimal exploitation competition appears to allow coexistence of wolves and coyotes, while interference competition is believed to account for the difference in canid abundance near the two road types. JF - Canadian Journal of Zoology/Revue Canadienne de Zoologie AU - Thurber, J M AU - Peterson, RO AU - Woolington, J D AU - Vucetich, JA AD - USDA For. Serv., 801 Adams St., Iron River, MI 49935, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2494 EP - 2498 VL - 70 IS - 12 SN - 0008-4301, 0008-4301 KW - aggressive behaviour KW - Animal Behavior Abstracts; Ecology Abstracts KW - home range KW - coexistence KW - USA, Alaska, Kenai Peninsula KW - Canis latrans KW - interspecific relationships KW - Canis lupus KW - Y 25537:Mammals (excluding primates) KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.atitle=Coyote+coexistence+with+wolves+on+the+Kenai+Peninsula%2C+Alaska.&rft.au=Thurber%2C+J+M%3BPeterson%2C+RO%3BWoolington%2C+J+D%3BVucetich%2C+JA&rft.aulast=Thurber&rft.aufirst=J&rft.date=1992-01-01&rft.volume=70&rft.issue=12&rft.spage=2494&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.issn=00084301&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Canis lupus; Canis latrans; USA, Alaska, Kenai Peninsula; interspecific relationships; home range; coexistence ER - TY - JOUR T1 - Epizootiological investigation of an outbreak of pullorum disease in an integrated broiler operation. AN - 16386114; 2880614 AB - An integrated broiler company experienced a major outbreak of pullorum disease during 1990. The outbreak resulted in the distribution of Salmonella pullorum infected birds to more than 150 roaster flocks in five states. Twenty-two parent (multiplier) breeder flocks became infected. An epizootiological investigation uncovered a grandparent male line breeder flock as the index flock supplying males to the affected parent flocks. Transmission apparently occurred vertically through the egg and horizontally by contact in the hatcheries and by placement of chicks on contaminated litter. JF - Avian Diseases AU - Johnson, D C AU - David, M AU - Goldsmith, S AD - USDA, Anim. and Plant Health Insp. Serv., Vet. Serv., 1000 Iris Dr., Suite G, Conyers, GA 30207, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 770 EP - 775 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - infection KW - outbreaks KW - pullorum disease KW - Salmonella pullorum KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16386114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Epizootiological+investigation+of+an+outbreak+of+pullorum+disease+in+an+integrated+broiler+operation.&rft.au=Johnson%2C+D+C%3BDavid%2C+M%3BGoldsmith%2C+S&rft.aulast=Johnson&rft.aufirst=D&rft.date=1992-01-01&rft.volume=36&rft.issue=3&rft.spage=770&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella pullorum; pullorum disease; infection; outbreaks ER - TY - JOUR T1 - Occurrence of Salmonella enteritidis in the U.S. commercial egg industry: Report on a national spent hen survey. AN - 16385885; 2880812 AB - In order to estimate the prevalence and distribution of Salmonella enteritidis in U.S. commercial egg-production flocks, a survey of spent laying hens was conducted over a 3-month period. Seven of the 10 largest spent-hen processing plants in the United States participated. Ceca were sampled twice weekly from birds presented for slaughter at these plants. Samples were cultured for Salmonella and S. enteritidis , and S. enteritidis isolates were phage-typed. Overall, 23,431 pooled cecal samples were collected from a total of 405 layer houses. Salmonella (any serotype) and S. enteritidis were recovered from 24% and 3% of the pooled samples, respectively. The distribution of S. enteritidis phage types was consistent with data reported by others. JF - Avian Diseases AU - Ebel, ED AU - David, MJ AU - Mason, J AD - USDA, Anim. and Plant Health Insp. Serv., Vet. Serv., 6525 Belcrest Rd., Rm. 205, Hyattsville, MD 20782, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 646 EP - 654 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - incidence KW - egg production KW - food industry KW - chickens KW - Health & Safety Science Abstracts; Microbiology Abstracts B: Bacteriology KW - USA KW - Salmonella enteritidis KW - J 02862:Infection KW - H SE2.21:FARM ANIMAL DISEASES UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16385885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Fire+regimes+for+pine-grassland+communities+in+the+southeastern+United+States.&rft.au=Waldrop%2C+T+A%3BWhite%2C+D+L%3BJones%2C+S+M&rft.aulast=Waldrop&rft.aufirst=T&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; USA; incidence; egg production; food industry ER - TY - CONF T1 - Evaluating changes in forest condition potentially related to acidic deposition: An example using red spruce. AN - 16385511; 2872183 AB - To develop an expectation of change in radial growth in the absence of high levels of acidic deposition, radial growth chronologies of red spruce (Picea rubens Sarg.) from forest survey data in northern Maine were analyzed. The entire radial growth chronology was analyzed for possible influences of disturbance events and stand development. Two periods of large growth reductions are evident over the past 60 years. In the early 1930s, a trend of decreased radial growth was preceded by growth increases in the 1920s. The 1920s increase resulted from the release of understory trees and recovery of surviving trees, following a severe budworm epidemic. Likewise, a trend of decreased radial growth after 1960 was preceded by a growth increase in the 1940s. Release of the red spruce trees in the 1940s is believed in part to be the result of a regional birch decline that began in the mid-1930s. JF - Forest Ecology and Management AU - Reams, G A AU - Peterson, CE Jr Y1 - 1992 PY - 1992 DA - 1992 SP - 5 EP - 16 VL - 51 IS - 1-4 KW - stand structure KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - growth rate KW - acid deposition KW - Picea rubens KW - mortality KW - USA, Maine KW - pollution effects KW - D 04635:Conifers KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16385511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Evaluating+changes+in+forest+condition+potentially+related+to+acidic+deposition%3A+An+example+using+red+spruce.&rft.au=Reams%2C+G+A%3BPeterson%2C+CE+Jr&rft.aulast=Reams&rft.aufirst=G&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Microbiological and histopathological effects of an induced-molt fasting procedure on a Salmonella enteritidis infection in chickens. AN - 16384084; 2880577 AB - A study was undertaken to determine if a 2-week feed-removal protocol, as is used by industry to induce a molt in aging hens, would affect the course of a Salmonella enteritidis infection. Histological examination of the intestinal tract of S. enteritidis -infected molted hens showed increased inflammation in the epithelium and lamina propria of colons and ceca, compared with unmolted infected hens. JF - Avian Diseases AU - Holt, P S AU - Porter, RE Jr AD - USDA-ARS, Southeast Poultry Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 610 EP - 618 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - infection KW - moulting KW - Salmonella enteritidis KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16384084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Microbiological+and+histopathological+effects+of+an+induced-molt+fasting+procedure+on+a+Salmonella+enteritidis+infection+in+chickens.&rft.au=Holt%2C+P+S%3BPorter%2C+RE+Jr&rft.aulast=Holt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=48&rft.issue=3-4&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; infection; moulting ER - TY - JOUR T1 - Distribution and frequency of a gene for resistance to white pine blister rust in natural populations of sugar pine. AN - 16383837; 2878991 AB - The gametic frequency of a dominant allele (R) for resistance to white pine blister rust, a disease caused by an introduced pathogen (Cronartium ribicola ), in natural populations of sugar pine was estimated by the kind of leaf symptom expressed after artificial inoculation of wind-pollinated seedlings from susceptible seed-parent genotypes (rr). Gene frequency increased clinally from near 0 in the southern Cascade Range to 0.08 in the southern Sierra Nevada, but it was not correlated with any major climatic gradient. Because R expresses a typical hypersensitivity response to pathogenesis, it has probably always functioned in disease resistance. A candidate pathogen for this function is C. occidentale , cause of pinyon blister rust, and a close relative of C. ribicola . Increase in allele frequency was positively associated with the proximity of sugar pine to single-leaf pinyon pine populations. Although sugar pine is not presently a natural host of pinyon rust, R may be a relict gene that protected sugar pine from this endemic pathogen in recent geologic epochs, when both pines are known to have been more intimately associated. JF - Canadian Journal of Botany/Revue Canadien de Botanique AU - Kinloch, BB Jr AD - Inst. Forest Genet., Pac. Southwest Res. Stn., USDA Forest Serv., Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1319 EP - 1323 VL - 70 IS - 7 SN - 0008-4026, 0008-4026 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - Pinus lambertiana KW - Cronartium ribicola KW - genes KW - resistance KW - frequency KW - blister rust KW - distribution KW - K 03089:Fungi: plant KW - A 01030:General KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16383837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Botany%2FRevue+Canadien+de+Botanique&rft.atitle=Distribution+and+frequency+of+a+gene+for+resistance+to+white+pine+blister+rust+in+natural+populations+of+sugar+pine.&rft.au=Kinloch%2C+BB+Jr&rft.aulast=Kinloch&rft.aufirst=BB&rft.date=1992-01-01&rft.volume=70&rft.issue=7&rft.spage=1319&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Botany%2FRevue+Canadien+de+Botanique&rft.issn=00084026&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - disease resistance; genes; resistance; frequency; blister rust; distribution; Pinus lambertiana; Cronartium ribicola ER - TY - JOUR T1 - Helicoverpa zea (Lepidoptera: Noctuidae) pupa production in fruiting corn in northeast Mexico and south Texas. AN - 16382503; 2864142 AB - Populations of corn earworm, Helicoverpa zea (Boddie), pupae produced in approximately equals 200,000 ha of corn growing in the Lower Rio Grande Valley of northeast Tamaulipas Mexico and south Texas were estimated. Pupae were excavated from two soil samples (1 m super(2)) in 90-120 cornfields each year between 1985 and 1988 following larval development on ear-stage corn. Mean plant populations in the fields ranged from 5.6 per meter of row in 1987 to 6.8 per meter of row in 1986, while ear infestation by H. zea) larvae ranged from 76.9% in 1987 to 93.6% in 1986. The total number of corn earworm prepupae, pupae, and exuviae excavated ranged from an average 1.1 insects per square meter in 1987 to 3.8 insects per square meter in 1985. Correlation analysis indicated that only 58% of the variation in the number of corn earworm excavated from the 1-m super(2) soil samples was correlated with the variation in the number of infested plants per meter of row. JF - Environmental Entomology AU - Raulston, J R AU - Pair, S D AU - Loera, J AU - Sparks, AN AU - Wolf, W W AU - Westbrook, J K AU - Fitt, G P AU - Rogers, CE AD - USDA-ARS-SPA, Subtrop. Cotton Insects Res. Unit, 2413 E. Hwy. 83, Weslaco, TX 78596, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1393 EP - 1397 VL - 21 IS - 6 SN - 0046-225X, 0046-225X KW - Mexico, Northeast KW - Entomology Abstracts; Ecology Abstracts KW - migration KW - population levels KW - pupae KW - Helicoverpa zea KW - production KW - Lepidoptera KW - USA, Texas KW - Noctuidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16382503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Helicoverpa+zea+%28Lepidoptera%3A+Noctuidae%29+pupa+production+in+fruiting+corn+in+northeast+Mexico+and+south+Texas.&rft.au=Raulston%2C+J+R%3BPair%2C+S+D%3BLoera%2C+J%3BSparks%2C+AN%3BWolf%2C+W+W%3BWestbrook%2C+J+K%3BFitt%2C+G+P%3BRogers%2C+CE&rft.aulast=Raulston&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=6&rft.spage=1393&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Helicoverpa zea; Noctuidae; Lepidoptera; USA, Texas; migration; production; population levels; pupae ER - TY - JOUR T1 - Biology of Tricrania stansburyi , a meloid beetle cleptoparasite of the bee Osmia lignaria propinqua (Hymenoptera: Megachilidae). AN - 16376808; 2865875 AB - A life-cycle chronology of Tricrania stansburyi (Haldeman) developed from results obtained in this study demonstrates that this meloid species is univoltine, individuals mate more than once as they emerge from host nests, dispersal is accomplished by flight, adults apparently do not feed and are short-lived (1-2 wk), fecundity is high (>900 eggs per female), parasitism is accomplished through phoresy by the first instar (triungulin), meloid larvae develop through seven instars, the entire host cell provision is consumed by the first instars (sixth and seventh instars do not feed), and only one meloid larva survives multiple parasitism of any host cell. Results were also obtained on courtship, mating, sex ratio (female-biased), preferred egg deposition sites, new host records (7 species), preferential discrimination of triungulins to various host species, function of silken strands produced by triungulins, environmental triggers that initiate combat between triungulins, and biological traits that influence annual rates of parasitism by T. stansburyi . JF - Annals of the Entomological Society of America AU - Torchio, P F AU - Bosch, J AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84332-5310, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 713 EP - 721 VL - 85 IS - 6 SN - 0013-8746, 0013-8746 KW - Osmia lignaria propinqua KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - development KW - Tricrania stansburyi KW - Megachilidae KW - Hymenoptera KW - Meloidae KW - Coleoptera KW - life cycle KW - kleptoparasitism KW - Y 25533:Insects KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16376808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+Entomological+Society+of+America&rft.atitle=Biology+of+Tricrania+stansburyi+%2C+a+meloid+beetle+cleptoparasite+of+the+bee+Osmia+lignaria+propinqua+%28Hymenoptera%3A+Megachilidae%29.&rft.au=Torchio%2C+P+F%3BBosch%2C+J&rft.aulast=Torchio&rft.aufirst=P&rft.date=1992-01-01&rft.volume=85&rft.issue=6&rft.spage=713&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+Entomological+Society+of+America&rft.issn=00138746&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tricrania stansburyi; Meloidae; Coleoptera; Megachilidae; Hymenoptera; life cycle; development; kleptoparasitism ER - TY - CONF T1 - Impacts of acidic deposition on high-elevation spruce-fir forests: Results from the Spruce-Fir Research Cooperative. AN - 16375677; 2863156 AB - In the northeastern US, spruce-fir forests are experiencing visible decline, with large numbers of standing dead trees (> 50% on some mountains). Results from a number of research projects suggest red spruce is particularly sensitive to winter injury, that cloudwater inputs increase that susceptibility, and that repeated winter injury may play a role in red spruce decline in the northeastern US. Increased rates of dark respiration, reduced photosynthesis, and reduced foliar chlorophyll levels have been measured for red spruce, at sites receiving high cloudwater deposition in the southern Appalachians relative to trees receiving lower deposition, and these physiological changes may be contributing to reduced growth of red spruce saplings. Effects of acid anion deposition on soil aluminum levels could have important implications for soil and tissue cation levels. The relative role of the particular mechanisms associated with acidic deposition may with natural biotic and abiotic factors. JF - Forest Ecology and Management AU - Adams, M B AU - Eagar, C Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 205 VL - 51 IS - 1-4 KW - montane environments KW - cold tolerance KW - environmental factors KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - Abies KW - acid deposition KW - Picea KW - D 04635:Conifers KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16375677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Impacts+of+acidic+deposition+on+high-elevation+spruce-fir+forests%3A+Results+from+the+Spruce-Fir+Research+Cooperative.&rft.au=Adams%2C+M+B%3BEagar%2C+C&rft.aulast=Adams&rft.aufirst=M&rft.date=1992-01-01&rft.volume=51&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Summer habitat use by Columbian sharp-tailed grouse in western Idaho. AN - 16374790; 2864831 AB - We studied summer habitat use by Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus ) in western Idaho during 1983-85. Vegetative and topographic measurements were recorded at 716 locations of 15 radio-tagged grouse and at 180 random sites within the major vegetation/cover types in the study area. The mean size of summer home ranges was 1.87 plus or minus 1.14 km super(2). Of eight cover types identified in the study area, individual grouse used the big sagebrush (Artemisia tridentata)) cover type more than or in proportion to availability, the low sagebrush (A. arbuscula ) type in proportion to availability, and avoided the shrubby eriogonum (Eriogonum spp.) type. Characteristics of the big sagebrush cover type that Sharp-tailed Grouse preferred include moderate vegetative cover, high plant species diversity, and high structural diversity. Grouse used areas of dense cover (i.e., mountain shrub and riparian cover types) primarily for escape cover. JF - Great Basin Naturalist AU - Saab, V A AU - Marks, J S AD - USDA For. Serv., Intermountain Res. Stn., 316 E. Myrtle St., Boise, ID 83702, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 166 EP - 173 VL - 52 IS - 2 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - USA, Idaho KW - Tympanuchus phasianellus columbianus KW - summer KW - habitat utilization KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16374790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Summer+habitat+use+by+Columbian+sharp-tailed+grouse+in+western+Idaho.&rft.au=Saab%2C+V+A%3BMarks%2C+J+S&rft.aulast=Saab&rft.aufirst=V&rft.date=1992-01-01&rft.volume=16&rft.issue=2&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Fungal+Genetics+and+Biology&rft.issn=01475975&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Tympanuchus phasianellus columbianus; USA, Idaho; habitat utilization; summer ER - TY - JOUR T1 - Stratification of habitats for identifying habitat selection by Merriam's turkeys. AN - 16374448; 2864964 AB - Habitat selection patterns of Merriam's Turkeys were compared in hierarchical analyses of three levels of habitat stratification. Habitat descriptions in first-level analyses were based on dominant species of vegetation. Habitat descriptions in second-level analyses were based on dominant species of vegetation and overstory canopy cover. Habitat descriptions in third-level analyses were based on dominant species of vegetation, overstory canopy cover, and structural stages (dbh categories). First-level analyses showed turkeys selected for ponderosa pine and selected against meadow habitats. No conclusions could be drawn regarding forest management on habitat selection of turkeys at this level of habitat stratification. Second-level analyses showed that selection of ponderosa pine and aspen/birch habitats varied among seasons. Implications for forest management activities on turkeys at this level of habitat stratification could be made. Third-level analyses added little to conclusions of habitat selection patterns drawn from second-level analyses and increased chances for Type II errors. Habitat selection patterns of Merriam's Turkeys were best described when habitats were stratified by dominant species of vegetation and overstory canopy cover. JF - Great Basin Naturalist AU - Rumble, MA AU - Anderson, SH AD - USDA Forest Serv., 501 F. St. Joseph St., South Dakota Sch. Mines, Rapid City, SD 57701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 144 VL - 52 IS - 2 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - USA, South Dakota KW - forest management KW - vegetation patterns KW - stratification KW - identification KW - habitat selection KW - statistical analysis KW - Meleagris gallopavo merriami KW - D 04671:Birds KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16374448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Stratification+of+habitats+for+identifying+habitat+selection+by+Merriam%27s+turkeys.&rft.au=Rumble%2C+MA%3BAnderson%2C+SH&rft.aulast=Rumble&rft.aufirst=MA&rft.date=1992-01-01&rft.volume=52&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Meleagris gallopavo merriami; USA, South Dakota; habitat selection; stratification; vegetation patterns; forest management; identification; statistical analysis ER - TY - JOUR T1 - Effects of sediment transport on survival of salmonid embryos in a natural stream: A simulation approach. AN - 16372319; 2869649 AB - A model is presented that simulates the effects of streamflow and sediment transport on survival of salmonid embryos incubating in spawning gravels in a natural channel. Components of the model include a 6-yr streamflow record, an empirical bedload-transport function, a relation between transport and infiltration of sandy bedload into a gravel bed, effects of fine-sediment infiltration on gravel properties, and functions relating embryo survival to gravel properties. High-flow events drive temporal variations in survival; cross-channel variations in bedload transport cause spatial variations. Expected survival, as a result, varies widely from year to year and between spawning runs in a single year. Alternative functions from previous research that relate survival to fine-sediment concentration in spawning gravel and to intergravel rates of flow yield categorically different results. The relative uncertainty of the components of this model indicates that the greatest research needs are to understand how sediment transport affects the intergravel environment and how these changes affect embryo development and survival. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Lisle, TE AU - Lewis, J AD - USDA Forest Serv., Pacific Southwest Res. Stn., 1700 Bayview Dr., Arcata, CA 95521, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2337 EP - 2344 VL - 49 IS - 11 SN - 0706-652X, 0706-652X KW - Ecology Abstracts KW - models KW - embryos KW - sediments KW - streams KW - survival KW - Salmonidae KW - D 04003:Modeling, mathematics, computer applications KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16372319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Effects+of+sediment+transport+on+survival+of+salmonid+embryos+in+a+natural+stream%3A+A+simulation+approach.&rft.au=Lisle%2C+TE%3BLewis%2C+J&rft.aulast=Lisle&rft.aufirst=TE&rft.date=1992-01-01&rft.volume=49&rft.issue=11&rft.spage=2337&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - Salmonidae; models; sediments; survival; embryos; streams ER - TY - JOUR T1 - Identification and analysis of a genomic strain cluster of mycoplasmalike organisms associated with Canadian peach (eastern) X disease, western X disease, and clover yellow edge. AN - 16370051; 2861270 AB - Genetic interrelatedness among 13 strains of mycoplasmalike organisms (MLOs) from various sources was evaluated by dot hybridization and restriction fragment length polymorphism analyses using cloned DNA probes derived from Canadian peach X (CX) and western X (WX) MLOs. Dot hybridization analysis indicated that CX, WX, and clover yellow edge MLOs are closely related and form a distinct strain cluster that is only distantly related to the 10 other MLOs. Similarity coefficients derived from restriction fragment length polymorphism analysis revealed that CX, WX, and clover yellow edge MLOs represent three distinct genomic types. JF - Journal of Bacteriology AU - Lee, I-M AU - Gunderden, DE AU - Davis, R E AU - Chiykowski, L N AD - Microbiol. and Plant Pathol. Lab., USDA Agric. Res. Serv., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 6694 EP - 6698 VL - 174 IS - 20 SN - 0021-9193, 0021-9193 KW - peach X disease KW - clover yellow edge KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - western X disease KW - X disease KW - hybridization analysis KW - restriction fragment length polymorphism KW - identification KW - Trifolium KW - mycoplasma-like organisms KW - Prunus persica KW - J 02880:Plant diseases KW - A 01027:Fruit trees KW - A 01025:Leguminous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16370051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Identification+and+analysis+of+a+genomic+strain+cluster+of+mycoplasmalike+organisms+associated+with+Canadian+peach+%28eastern%29+X+disease%2C+western+X+disease%2C+and+clover+yellow+edge.&rft.au=Lee%2C+I-M%3BGunderden%2C+DE%3BDavis%2C+R+E%3BChiykowski%2C+L+N&rft.aulast=Lee&rft.aufirst=I-M&rft.date=1992-01-01&rft.volume=174&rft.issue=20&rft.spage=6694&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus persica; Trifolium; mycoplasma-like organisms; identification; hybridization analysis; western X disease; restriction fragment length polymorphism; X disease ER - TY - JOUR T1 - Absence of genotoxicity of potato alkaloids alpha -chaconine, alpha -solanine and solanidine in the Ames Salmonella and adult and foetal erythrocyte micronucleus assays. AN - 16368243; 2861752 AB - To assess whether reported toxicities of potato-derived glycoalkaloids could be the result of interactions with cellular DNA, the genotoxic effects of alpha -solanine, alpha -chaconine and solanidine were studied, using the Ames test (Salmonella strains TA98 and TA100), the mouse peripheral blood micronucleus test and the mouse transplacental micronucleus test. The Ames test for mutagenicity with alpha -solanine was weakly positive in TA100 with S-9 activation (29 revertants per millimole per plate). However, pooled data from duplicate tests gave a negative effect. Pooled data from two experiments with alpha -chaconine gave a weak positive response in TA98 without microsomes (17 revertants per millimole per plate). The micronucleus tests for clastogenicity using male mouse and foetal blood were negative. The absence of mutagenicity and clastogenicity suggests lack of damage to intracellular DNA for potato alkaloid toxicity. JF - Food and Chemical Toxicology AU - Friedman, M AU - Henika, PR AD - Food Safety Res. Unit, USDA - ARS Western Reg. Res. Cent., 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 689 EP - 694 VL - 30 IS - 8 SN - 0278-6915, 0278-6915 KW - alpha -chaconine KW - alpha -solanine KW - solanidine KW - Toxicology Abstracts KW - Solanum tuberosum KW - genotoxicity KW - Ames test KW - micronuclei KW - X 24120:Food, additives & contaminants KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16368243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Absence+of+genotoxicity+of+potato+alkaloids+alpha+-chaconine%2C+alpha+-solanine+and+solanidine+in+the+Ames+Salmonella+and+adult+and+foetal+erythrocyte+micronucleus+assays.&rft.au=Friedman%2C+M%3BHenika%2C+PR&rft.aulast=Friedman&rft.aufirst=M&rft.date=1992-01-01&rft.volume=30&rft.issue=8&rft.spage=689&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; genotoxicity; Ames test; micronuclei ER - TY - JOUR T1 - Use of concanavalin A in the purification of juvenile hormone esterase from the hemolymph and the fat body of Lymantria dispar . AN - 16367048; 2854349 AB - A new method for the purification of juvenile hormone esterase (JHE) exploits the ability of Sepharose-coupled concanavalin A to bind to glycoproteins. Preparation of homogeneous esterase from the plasma of the gypsy moth, Lymantria dispar , was accomplished by a procedure employing polyethylene glycol (PEG) precipitation. Superose-12 gel filtration, concanavalin A-Sepharose affinity chromatography and mono-Q FPLC. The 62 kDa plasma glycoprotein was purified 1325-fold by the four-step procedure with an 8% recovery of the original activity. A specific activity of 2650 nmol of juvenile hormone III (JH III) hydrolyzed per min per mg of protein at 28 degree C was determined for the purified enzyme. Concanavalin A-Sepharose chromatography also was used in the partial purification of JHE from the last stadium fat body of gypsy moth larvae. Western blots showed that the fat body enzyme was similar in size to JHE purified from the plasma. JF - Insect Biochemistry and Molecular Biology AU - Valaitis, A AD - USDA, For. Serv., Northeast. For. Exp. Stn., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 639 EP - 648 VL - 22 IS - 7 SN - 0965-1748, 0965-1748 KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - body KW - concanavalin A KW - haemolymph KW - juvenile-hormone esterase KW - purification KW - use KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16367048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Use+of+concanavalin+A+in+the+purification+of+juvenile+hormone+esterase+from+the+hemolymph+and+the+fat+body+of+Lymantria+dispar+.&rft.au=Valaitis%2C+A&rft.aulast=Valaitis&rft.aufirst=A&rft.date=1992-01-01&rft.volume=22&rft.issue=7&rft.spage=639&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - body; use; purification ER - TY - JOUR T1 - The effect of acetone on the viability of chicken anemia agent. AN - 16364696; 2860130 AB - To study the effect of acetone on the viability of CAA, a sample of CAA with a known titer was treated with 90% acetone for 24 hours at room temperature. The remaining viable CAA was quantitated by titrating the treated preparation in MDCC-MSB1 cell culture. Results indicated that CAA is very resistant to inactivation by acetone. JF - Avian Diseases AU - Taylor, S P AD - Biol. Virol. Lab., Natl. Vet. Serv. Lab., Anim. and Plant Health Insp. Serv., Vet. Serv., USDA, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 753 EP - 754 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - chicken anemia agent KW - acetone KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts KW - antiviral activity KW - A 01068:Antiviral & viricidal KW - V 22100:Antiviral agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16364696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=The+effect+of+acetone+on+the+viability+of+chicken+anemia+agent.&rft.au=Taylor%2C+S+P&rft.aulast=Taylor&rft.aufirst=S&rft.date=1992-01-01&rft.volume=52&rft.issue=2&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - antiviral activity ER - TY - JOUR T1 - Binding of Salmonella strains to immobilized intestinal mucosal preparations from broiler chickens. AN - 16363478; 2847221 AB - The binding kinetics of radiolabeled Salmonella california 1989/O (mannose-sensitive hemagglutinin-positive (MSHA+)) to immobilized mucus or enterocytes isolated from broiler ceca and inhibition of binding by D-mannose and sodium metaperiodate were characteristic of adherence of mannose-sensitive type 1 fimbriae of bacteria to eukaryotic mannose-containing receptors. Binding by radiolabeled strains 1989/O (in the presence of D-mannose) and S. typhimurium S 7471 N (MSHA-, non-fimbriated) indicated non-specific binding that was characterized by less binding to enterocytes and mucus and lack of inhibition by carbohydrates or prior treatment with sodium metaperiodate. JF - Avian Diseases AU - Craven, SE AU - Cox, NA AU - Bailey, J S AU - Blankenship, L C AD - Poult. Microbiol. Saf. Res. Unit, R.B. Russell Agric. Res. Cent., Agric. Res. Serv., USDA, Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 296 EP - 303 VL - 36 IS - 2 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - mucosa KW - cell surface KW - intestine KW - immobilization KW - cell adhesion KW - Salmonella KW - J 02862:Infection KW - J 02721:Cell cycle, morphology and motility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16363478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Binding+of+Salmonella+strains+to+immobilized+intestinal+mucosal+preparations+from+broiler+chickens.&rft.au=Craven%2C+SE%3BCox%2C+NA%3BBailey%2C+J+S%3BBlankenship%2C+L+C&rft.aulast=Craven&rft.aufirst=SE&rft.date=1992-01-01&rft.volume=36&rft.issue=2&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella; mucosa; immobilization; cell adhesion; cell surface; intestine ER - TY - JOUR T1 - Atmospheric dry deposition on pines in the Eastern Brook Lake Watershed, Sierra Nevada, California. AN - 16362814; 2857450 AB - Atmospheric dry deposition to branches of Pinus contorta and P. albicaulis was measured during summer 1987 in a sub-alpine zone at Eastern Brook Lake Watershed (EBLW), eastern Sierra Nevada, California. Deposition fluxes of anions and cations to the pine branches were low, several times lower than the values determined near the Emerald Lake Watershed (ELW), another sub-alpine location in the western Sierra Nevada. The sums of deposition fluxes of the measured cations and anions to pine surfaces were similar, in contrast to the ELW location where the sums of cation fluxes were much higher than the sums of anion fluxes. JF - Atmospheric Environment, Part A AU - Bytnerowicz, A AU - Dawson, P J AU - Morrison, CL AU - Poe, M P AD - USDA Forest Serv. Pacific Southwest Res. Stn., 4955 Canyon Crest Dr., Riverside, CA 92507, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3195 EP - 3201 VL - 26A IS - 17 SN - 0004-6981, 0004-6981 KW - USA, California, Sierra Nevada KW - Pollution Abstracts KW - forests KW - anions KW - Pinus albicaulis KW - Pinus contorta KW - watersheds KW - atmosphere KW - nitrogen KW - dry deposition KW - cations KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16362814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment%2C+Part+A&rft.atitle=Atmospheric+dry+deposition+on+pines+in+the+Eastern+Brook+Lake+Watershed%2C+Sierra+Nevada%2C+California.&rft.au=Bytnerowicz%2C+A%3BDawson%2C+P+J%3BMorrison%2C+CL%3BPoe%2C+M+P&rft.aulast=Bytnerowicz&rft.aufirst=A&rft.date=1992-01-01&rft.volume=26A&rft.issue=17&rft.spage=3195&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment%2C+Part+A&rft.issn=00046981&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus contorta; Pinus albicaulis; atmosphere; anions; nitrogen; cations; watersheds; dry deposition; forests ER - TY - JOUR T1 - Full-fat soybean meal utilization by fish. AN - 16362557; 2853089 AB - Full-fat soybean meal (FFSBM) contains slightly lower crude protein but much higher oil than defatted soybean meal. Like defatted soybean meal, FFSBM has one of the best amino acid profiles among vegetable proteins in meeting the essential amino acid requirements of fish. FFSBM is also a good source of linoleic and linolenic acids and phospholipids. There is little phosphorus present in FFSBM and it is mostly in the form of phytic acid which is not highly available for fish and hampers the utilization of other minerals. Raw soybeans also contain several anti-nutritional factors known to affect the growth and health of fish. However, several methods of heat treatment have been successfully used to inactivate or eliminate anti-nutritional factors that improve the nutritive value of FFSBM. Research information shows that the nutritive value of properly heated FFSBM for fish is comparable to, if not better than, defatted soybean meal reconstituted with soybean oil. JF - Asian fisheries science. Metro Manila AU - Lim, C AU - Akiyama, D M AD - USDA-ARS-PW, Trop. Aquacult. Res. Unit, Oceanic Inst., Makapuu Point, P.O. Box 25280, Honolulu, HI 96795, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 181 EP - 197 VL - 5 IS - 2 SN - 0116-6514, 0116-6514 KW - soybean meal KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - artificial feeding KW - fish culture KW - diets KW - nutritive value KW - Glycine max KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16362557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Asian+fisheries+science.+Metro+Manila&rft.atitle=Full-fat+soybean+meal+utilization+by+fish.&rft.au=Lim%2C+C%3BAkiyama%2C+D+M&rft.aulast=Lim&rft.aufirst=C&rft.date=1992-01-01&rft.volume=5&rft.issue=2&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Asian+fisheries+science.+Metro+Manila&rft.issn=01166514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - artificial feeding; fish culture; diets; nutritive value; Glycine max ER - TY - JOUR T1 - Influence of fat content on uptake and depuration of the off-flavor 2-methylisoborneol by channel catfish (Ictalurus punctatus ). AN - 16358996; 2849727 AB - Channel catfish (Ictalurus punctatus ) of different tissue fat contents (0.5-11.0%) were held in water containing approximately 0.5 mu g/L of the off-flavor compound 2-methylisoborneol (MIB) for various times. A new analytical method was developed to quantify tissue burdens of MIB. Fish showed significant bioconcentration of MIB after 2 h and equilibrium by 24 h. The fatter fish (> 2.5% muscle fat) accumulated nearly three times more MIB than lean fish (< 2%). Purging fish in MIB-free water indicated that leaner fish depurate faster (8 h) than fatter fish (48 h). Fat content had more influence in determining the time for return to acceptable flavor than initial MIB concentration. Managing catfish production to harvest leaner fish could minimize the impact of off-flavor on fish producers. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Johnsen, P B AU - Lloyd, S W AD - USDA Agric. Res. Serv., Food Unit, Box 19687, New Orleans, LA 70179, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2406 EP - 2411 VL - 49 IS - 11 SN - 0706-652X, 0706-652X KW - methylisoborneol KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - fishery economics KW - self purification KW - fish culture KW - correlation analysis KW - Freshwater KW - taste KW - acceptance tests KW - Ictalurus punctatus KW - bioaccumulation KW - aquaculture products KW - fats KW - quality control KW - organoleptic properties KW - Q3 08582:Fish culture KW - Q1 08627:Food quality and standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16358996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Influence+of+fat+content+on+uptake+and+depuration+of+the+off-flavor+2-methylisoborneol+by+channel+catfish+%28Ictalurus+punctatus+%29.&rft.au=Johnsen%2C+P+B%3BLloyd%2C+S+W&rft.aulast=Johnsen&rft.aufirst=P&rft.date=1992-01-01&rft.volume=49&rft.issue=11&rft.spage=2406&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fishery economics; aquaculture products; self purification; fish culture; quality control; fats; correlation analysis; acceptance tests; taste; organoleptic properties; bioaccumulation; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Production of polyclonal antibodies in rabbits is simplified using perforated plastic golf balls. AN - 16353830; 2844675 AB - Production of polyclonal antibodies in the lumen of a perforated golf ball implanted surgically under the skin of a rabbit offers advantages over conventional techniques. Less stress is placed on the rabbit because bleeding is eliminated, complete adjuvants are not used and animal handling is minimized. The technique also offers the advantage that large amounts of antibody-containing fluid can be removed easily from the ball. We describe the surgical protocol and demonstrate use of this technique to produce high-titered antibodies to plant and plant proteins. JF - Biotechniques AU - Ried, J L AU - Walker-Simmons, M K AU - Everard, J D AU - Diani, J AD - USDA-ARS, Johnson Hall 209, Washington State Univ., Pullman, WA 99164-6420, USA Y1 - 1992 PY - 1992 DA - 1992 VL - 12 IS - 5 SN - 0736-6205, 0736-6205 KW - plastic golf balls KW - rabbits KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - immunization KW - anti KW - plastics KW - antibodies KW - plants KW - plant viruses KW - implantation KW - production KW - proteins KW - W2 32375:Antibodies KW - W 30965:Miscellaneous, Reviews KW - W2 32240:Immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16353830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechniques&rft.atitle=Production+of+polyclonal+antibodies+in+rabbits+is+simplified+using+perforated+plastic+golf+balls.&rft.au=Ried%2C+J+L%3BWalker-Simmons%2C+M+K%3BEverard%2C+J+D%3BDiani%2C+J&rft.aulast=Ried&rft.aufirst=J&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - immunization; anti; plastics; antibodies; plants; plant viruses; implantation; proteins; production ER - TY - JOUR T1 - Factors affecting wiregrass (Aristida stricta Michx.) cover on uncut and site prepared sandhills areas in central Florida. AN - 16352250; 2850711 AB - Because wiregrass (Aristida stricta Michx.) is a critical component of the longleaf pine (Pinus palustris Mill.) community of the southeastern Coastal Plain, USA, providing the fuel for recurring surface fires, we need restoration techniques which favor or at least maintain it. The study objective was to investigate what factors influence wiregrass cover in mature longleaf stands and in areas recently site prepared for re-establishment of longleaf pine. All sandhills sites which had been given hexazinone during site preparation for reforestation to longleaf pine in the past 5 years in the Ocala National Forest, Florida, USA, were sampled during the late summer and autumn of 1990. Regression analyses showed wiregrass cover was greater on areas treated to reduce oak cover with the herbicide hexazinone when dry conditions prevailed the month following application. Moisture had the reverse effect on sites chopped to reduce scrub oaks, with wiregrass cover decreasing with drier conditions. JF - Ecological Engineering AU - Outcalt, K W AD - USDA Forest Serv., Southeastern Forest Exp. Stn., Univ. Florida, P.O. Box 14524, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 245 EP - 251 VL - 1 IS - 3 SN - 0925-8574, 0925-8574 KW - Ecology Abstracts KW - environmental factors KW - Aristida stricta KW - cover KW - USA, Florida KW - clear cutting KW - Pinus palustris KW - environmental restoration KW - soil moisture KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Engineering&rft.atitle=Factors+affecting+wiregrass+%28Aristida+stricta+Michx.%29+cover+on+uncut+and+site+prepared+sandhills+areas+in+central+Florida.&rft.au=Outcalt%2C+K+W&rft.aulast=Outcalt&rft.aufirst=K&rft.date=1992-01-01&rft.volume=1&rft.issue=3&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Ecological+Engineering&rft.issn=09258574&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus palustris; Aristida stricta; USA, Florida; environmental factors; cover; soil moisture; clear cutting; environmental restoration ER - TY - JOUR T1 - Comparative phytotoxicity of the fumonisins, AAL-toxin and yeast sphingolipids in Lemna minor L. (duckweed). AN - 16352060; 2852890 AB - Fumonisin B sub(1) and AAL-toxin, both of which contain sphingolipid-like substituents, are water-soluble metabolites of Fusarium moniliforme) and Alternaria alternata , respectively. These two toxins were compared to each other and to tetraacetyl-phytosphingosine (TAPS) and triacetyl-dihydrosphingosine (TADS) for effects on chlorophyll production and growth in Lemna minor L. (duckweed). Fumonisin B sub(1) (0.7 mu g), TAPS, and TADS all produced parallel effects on growth rate and chlorophyll content; however, FB sub(1) did so at a 33-fold lower concentration. The AAL-toxin at 0.7 mu g affects chlorophyll content more than plant growth (36% versus 73%, respectively), whereas at 3.3 mu g concentration, the growth rate was less than 50% and chlorophyll content was reduced by 80%. JF - Archives of Environmental Contamination and Toxicology AU - Vesonder, R F AU - Peterson, R E AU - Labeda, D AU - Abbas, H K AD - Natl. Cent. Agric. Util. Res., ARS/USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 464 EP - 467 VL - 23 IS - 4 SN - 0090-4341, 0090-4341 KW - AAL toxins KW - biological poisons KW - fumonisin B1 KW - fumonisins KW - phytotoxicity KW - phytotoxins KW - sphingolipids KW - tetraacetylphytosphingosine KW - toxicity tests KW - triacetyldihydrosphingosine KW - ASFA 1: Biological Sciences & Living Resources; Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lemna minor KW - aquatic plants KW - Freshwater KW - Alternaria alternata KW - Fusarium moniliforme KW - pest control KW - yeasts KW - Q1 08206:Physiology, biochemistry, biophysics KW - A 01014:Others KW - K 03040:Fungi KW - P 2000:FRESHWATER POLLUTION KW - Q1 08485:Species interactions: pests and control KW - A 01023:Others KW - K 03035:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Twelve+Years+of+Abandoned+Mineland+Reclamation+Activities+by+the+United+States+Department+of+Agriculture-Soil+Conservation+Service+in+Southwest+Pennsylvania&rft.au=Bogovich%2C+WM&rft.aulast=Bogovich&rft.aufirst=WM&rft.date=1992-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - pest control; biological poisons; aquatic plants; toxicity tests; yeasts; phytotoxicity; sphingolipids; phytotoxins; Fusarium moniliforme; Lemna minor; Alternaria alternata; Freshwater ER - TY - JOUR T1 - New forestry principles from ecosystem analysis of Pacific Northwest forests. AN - 16350804; 2850669 AB - Forest management practices on Federal lands in the Pacific Northwest of the United States have been the center of intense controversy. Conflicting value systems, new information, and new perspectives have fueled the debate over the balance between timber production and preservation of natural ecosystems. In this paper we consider examples from three aspects of forest management: (1) management of forest stands, (2) management of the patchwork of forest stands at the landscape scale, and (3) management of streams and riparian networks. In each of these cases we examine: management practices and perspectives of the recent past, findings from ecosystem research that are leading to change in those practices, resulting changes in management practices, and future research directions. We also suggest a path for future change, including systems for managing in the face of uncertainty. JF - Ecological Applications AU - Swanson, F J AU - Franklin, J F AD - USDA Forest Serv., Pacific Northwest Res. Stn., 3200 Jefferson Way, Corvallis, OR 97331, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 262 EP - 274 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - Ecology Abstracts KW - ecosystem analysis KW - forest management KW - USA, Pacific Northwest KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16350804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=New+forestry+principles+from+ecosystem+analysis+of+Pacific+Northwest+forests.&rft.au=Swanson%2C+F+J%3BFranklin%2C+J+F&rft.aulast=Swanson&rft.aufirst=F&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=262&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Pacific Northwest; forest management; ecosystem analysis ER - TY - JOUR T1 - Nitrosamines in rubber bands used for orthodontic purposes. AN - 16346775; 2852998 AB - Fourteen samples from eight brands of elastic-rubber bands used in orthodontics were tested for their nitrosamine content. The presence of N-nitrosodibutylamine and N-nitrosopiperidine was confirmed. The potential for nitrosamine formation from accelerating agents used for vulcanization and from other nitrosatable amines, which may be present in rubber exposed to salivary nitrite, justifies further investigations. JF - Food and Chemical Toxicology AU - Fiddler, W AU - Pensabene, J AU - Sphon, J AU - Andrzejewski, D AD - USDA-ARS-ERRC, 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 325 EP - 326 VL - 30 IS - 4 SN - 0278-6915, 0278-6915 KW - rubber bands KW - orthodontics KW - dental prosthetics KW - nitrosamines KW - Health & Safety Science Abstracts; Toxicology Abstracts KW - X 24200:Nitrosamines & related compounds KW - H SM3.3:HAZARD DETERMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16346775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Nitrosamines+in+rubber+bands+used+for+orthodontic+purposes.&rft.au=Fiddler%2C+W%3BPensabene%2C+J%3BSphon%2C+J%3BAndrzejewski%2C+D&rft.aulast=Fiddler&rft.aufirst=W&rft.date=1992-01-01&rft.volume=30&rft.issue=4&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - nitrosamines; orthodontics; dental prosthetics ER - TY - JOUR T1 - Simulations of horizontal roll vortex development above lines of extreme surface heating. AN - 16345385; 2851066 AB - A two-dimensional nonhydrostatic, coupled, earth/atmospheric model has been used to simulate mean and turbulent atmospheric characteristics near lines of extreme surface heating. Prognostic equations are used to solve for the horizontal and vertical wind components, potential temperature, and turbulent kinetic energy (TKE). The model computes nonhydrostatic pressure deviations from a derived atmospheric continuity equation. Horizontal pressure gradients generated from surface heating are calculated from thermal wind principles. Model simulations indicate the development of buoyancy-induced horizontal roll vortices near regions with surface temperatures typical of wildland fires. Model results are qualitatively similar to previous wind-tunnel experiments. JF - International Journal of Wildland Fire AU - Heilman, W E AU - Fast, J D AD - USDA Forest Serv., 1407 South Harrison Rd., East Lansing, MI 48823, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 55 EP - 68 VL - 2 IS - 2 SN - 1049-8001, 1049-8001 KW - vortices KW - environmental management KW - Health & Safety Science Abstracts KW - wind KW - atmosphere KW - turbulence KW - simulation KW - fires KW - velocity KW - H SE8.27:FIRES IN NATURAL ENVIRONMENTS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16345385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=Simulations+of+horizontal+roll+vortex+development+above+lines+of+extreme+surface+heating.&rft.au=Heilman%2C+W+E%3BFast%2C+J+D&rft.aulast=Heilman&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Wildland+Fire&rft.issn=10498001&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - fires; simulation; atmosphere; turbulence; velocity; wind ER - TY - JOUR T1 - Timing of infestation by the Colorado potato beetle (Coleoptera: Chrysomelidae) on the suppressive effect of field released stinkbugs (Hemiptera: Pentatomidae) in Washington. AN - 16344018; 2844446 AB - Delaying infestation of potatoes by overwintering Colorado potato beetles Leptinotarsa decemlineata (Say) by either 10 or 20 d following plant emergence increased damage to the potatoes. The egg deposition period was reduced from 5 to 3 wk; both increased rates of egg deposition and feeding occurred over a shorter period of time. Potatoes infested at plant emergence by Colorado potato beetle had fourth instars feeding during a 4-wk period of time while infestation 20 d after plant emergence reduced this feeding period to 2 wk and resulted in significantly greater defoliation than those infested at plant emergence. Delayed infestation by either 10 or 20 d had a negative effect on predation by Perillus bioculatus (Fabr.). Potato plants infested by Colorado potato beetles at plant emergence with releases of P. bioculatus 4 d later had the greatest percentage reduction in fourth instars and provided significantly greater foliage protection than plants infested at 10 or 20 d after plant emergence. JF - Environmental Entomology AU - Biever, K D AU - Chauvin, R L AD - Fruit and Veg. Insect Res. Unit, USDA, Agric. Res. Serv., 3706 W. Nob Hill Blvd., Yakima, WA 98902, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1212 EP - 1219 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Entomology Abstracts KW - Perillus bioculatus KW - USA, Washington KW - biological control KW - population levels KW - Coleoptera KW - Pentatomidae KW - Leptinotarsa decemlineata KW - Chrysomelidae KW - Hemiptera KW - pest attack KW - infestation KW - Z 05207:Agricultural & general applied entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16344018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Timing+of+infestation+by+the+Colorado+potato+beetle+%28Coleoptera%3A+Chrysomelidae%29+on+the+suppressive+effect+of+field+released+stinkbugs+%28Hemiptera%3A+Pentatomidae%29+in+Washington.&rft.au=Biever%2C+K+D%3BChauvin%2C+R+L&rft.aulast=Biever&rft.aufirst=K&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1212&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - population levels; biological control; infestation; pest attack; Perillus bioculatus; Coleoptera; Pentatomidae; Leptinotarsa decemlineata; Hemiptera; Chrysomelidae; USA, Washington ER - TY - JOUR T1 - New perspectives for sustainable natural resources management. AN - 16343073; 2850799 AB - The USDA Forest Service is taking a new direction in its research and management programs in response to changing views of land and natural resources. The changes reflect the complexity of society's concerns and expectations for national forest management, including biological diversity, ecological function and balance, product yields, social values, and the beauty and integrity of natural environments. The new direction involved a shift in management focus from sustaining yields of competing resource outputs to sustaining ecosystems. More than ever, management of public lands and resources requires knowledge about ecosystems, including relationships to human values, activities, and patterns of resource use. Also required are new roles for scientists, including closed partnerships with managers to achieve large-scale studies and adaptive management of public lands and resources. JF - Ecological Applications AU - Kessler, W B AU - Salwasser, H AU - Cartwright, CW Jr AU - Caplan, JA AD - USDA Forest Serv., P.O. Box 96090, Washington, DC 20090-6090, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 221 EP - 225 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - US Forest Service KW - Ecology Abstracts KW - government policy KW - USA KW - sustainable development KW - resource management KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16343073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=New+perspectives+for+sustainable+natural+resources+management.&rft.au=Kessler%2C+W+B%3BSalwasser%2C+H%3BCartwright%2C+CW+Jr%3BCaplan%2C+JA&rft.aulast=Kessler&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA; sustainable development; resource management; government policy ER - TY - JOUR T1 - Nitrogen metabolism of normal and high-seed-protein soybean. AN - 16340944; 2845453 AB - Nitrogen metabolism differences, including N sub(2) fixation, between high- and normal-seed-protein soybean (Glycine max) (L.) Merr.) lines of equivalent plant maturity and seed yielding ability have not been determined in field tests. A replicated field experiment was conducted in 1985 and 1986 to determine such differences on a Mattapex silt loam (fine, silty, mixed, mesic Aqualfic Hapludult) with low soil N. The study used the nodulating-nonnodulating N difference method to estimate N sub(2) fixation of two soybean lines with contrasting seed protein levels. Eight sequential harvests were conducted from R5 (beginning seed) to combine harvest for the dry weights and N contents of vegetative and reproductive portions of the plants. The greater N accumulation by the high-protein line resulted from N sub(2) fixation being sustained until the late R6 (full seed) stage. Nodule occupancy by strains of Bradyrhizobium japonicum) was similar for the high- and normal-seed-protein lines. JF - Crop Science AU - Leffel, R C AU - Cregan, P B AU - Bolgiano AU - Thibeau, D J AD - USDA-ARS, Soybean and Alfalfa Res. Lab., Plant Sci. Inst., Build. 011, HH 19, Beltsville Agric. Res. Center, West Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 747 EP - 750 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - nitrogen KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - metabolism KW - cultivars KW - seeds KW - Bradyrhizobium japonicum KW - proteins KW - nitrogen fixation KW - Glycine max KW - A 01051:Nitrogen cycle UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16340944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Nitrogen+metabolism+of+normal+and+high-seed-protein+soybean.&rft.au=Leffel%2C+R+C%3BCregan%2C+P+B%3BBolgiano%3BThibeau%2C+D+J&rft.aulast=Leffel&rft.aufirst=R&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=747&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; Bradyrhizobium japonicum; nitrogen fixation; cultivars; seeds; proteins; metabolism ER - TY - JOUR T1 - The role of Ca super(2+)-dependent proteases (calpains) in post mortem proteolysis and meat tenderness. AN - 16339126; 2840445 AB - This manuscript summarizes research results from our laboratory regarding the role of endogenous proteases in post mortem proteolysis resulting in meat tenderization. Proteolysis of key myofibrillar proteins is the principal reason for ultrastructural changes in skeletal muscle associated with meat tenderization. The authors have concluded that calpains are the main proteolytic system responsible for post mortem proteolysis, and that one of the main regulators of calpains is their endogenous inhibitor, calpastatin. JF - Biochimie. Paris AU - Koohmaraie, M AD - USDA, ARS, Roman L. Hruska US Meat Anim. Res. Cent., P.O. Box 166, Clay Cent., NE 68933, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 239 EP - 245 VL - 74 IS - 3 SN - 0300-9084, 0300-9084 KW - calpain KW - carcasses KW - meat tenderization KW - postmortem KW - proteolysis KW - reviews KW - role KW - Microbiology Abstracts B: Bacteriology; Calcium & Calcified Tissue Abstracts KW - T 20029:Enzymes KW - J:20320 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16339126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Infection+and+Immunity&rft.atitle=The+Anaplasma+marginale+msp5+gene+encodes+a+19-kilodalton+protein+conserved+in+all+recognized+Anaplasma+species.&rft.au=Visser%2C+E+S%3BMcGuire%2C+T+C%3BPalmer%2C+G+H%3BDavis%2C+W+C%3BShkap%2C+V%3BPipano%2C+E%3BKnowles%2C+D+P%2C+Jr&rft.aulast=Visser&rft.aufirst=E&rft.date=1992-01-01&rft.volume=60&rft.issue=12&rft.spage=5139&rft.isbn=&rft.btitle=&rft.title=Infection+and+Immunity&rft.issn=00199567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - reviews; role; proteolysis; carcasses ER - TY - JOUR T1 - Mapping Phytophthora resistance loci in soybean with restriction fragment length polymorphism markers. AN - 16336817; 2845860 AB - Phytophthora root rot, caused by Phytophthora megasperma Drechs. f. sp. glycinea T. Kuan & D.C. Erwin, is one of the most serious diseases of soybean (Glycine max (L.) Merr.). Six loci with alleles giving race-specific resistance of soybean to phytophthora have been reported. The first objective of this study was to map the phytophthora resistance (Rps) loci using restriction fragment length polymorphism (RFLP) markers. The second objective was to map the Rj2 locus for ineffective nodulation with RFLP markers, because of the linkage of Rj2 to Rps2. The mapping was conducted using a series of "Williams" near-isogenic lines (NILs) with each having one or two phytophthora resistance alleles. JF - Crop Science AU - Diers, B W AU - Mansur, L AU - Imsande, J AU - Shoemaker, R C AD - USDA-ARS, Field Crops Res. and Dep. Agron. and Zool./Genet., Iowa State Univ., Ames, IA 50011, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 377 EP - 383 VL - 32 IS - 2 SN - 0011-183X, 0011-183X KW - Phytophthora megasperma glycinea KW - f.sp.glycinea KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Agricultural and Environmental Biotechnology Abstracts; Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - disease resistance KW - restriction fragment length polymorphism KW - loci KW - Phytophthora megasperma KW - Glycine max KW - root rot KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07354:Dicotyledons (crops) KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16336817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Mapping+Phytophthora+resistance+loci+in+soybean+with+restriction+fragment+length+polymorphism+markers.&rft.au=Diers%2C+B+W%3BMansur%2C+L%3BImsande%2C+J%3BShoemaker%2C+R+C&rft.aulast=Diers&rft.aufirst=B&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - disease resistance; restriction fragment length polymorphism; loci; root rot; Phytophthora megasperma; Glycine max ER - TY - JOUR T1 - Binding of riboflavin to lipophorin and a hexameric protein in the hemolymph of Heliothis virescens . AN - 16335231; 2843282 AB - The hemolymph of late final instar Heliothis virescens larvae was analyzed for riboflavin and its metabolic derivatives. Riboflavin levels in the hemolymph were found to be relatively high at this developmental stage (ca 25 mu g/ml hemolymph) and all of the flavin was associated with high molecular weight proteins. Based on the recovery of riboflavin with purified hemolymph protein preparations, approx. 15% of the total was bound to lipophorin and the remainder to a hexameric storage protein comprised of 82 kDa subunits, designated p82. The recovery of p82-bound riboflavin was not quantitative, a result attributable to the effects of sample dilution during purification. The p82 hexamer (but not lipophorin, arylphorin or other hemolymph proteins) was bound by a flavinyl-agarose affinity matrix, which provided independent confirmation of its identity as a flavin-binding protein. JF - Insect Biochemistry and Molecular Biology AU - Miller, S G AU - Silhacek, D L AD - Insect Attractants, Behav. and Basic Biol. Res. Lab., ARS, USDA, P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 571 EP - 583 VL - 22 IS - 6 SN - 0965-1748, 0965-1748 KW - Heliothis virescens KW - Lepidoptera KW - Noctuidae KW - binding KW - haemolymph KW - lipophorin KW - riboflavin KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05170:Circulatory system UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16335231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Binding+of+riboflavin+to+lipophorin+and+a+hexameric+protein+in+the+hemolymph+of+Heliothis+virescens+.&rft.au=Miller%2C+S+G%3BSilhacek%2C+D+L&rft.aulast=Miller&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - binding ER - TY - JOUR T1 - Screening of nonfilamentous bacteria for production of cutin-degrading enzymes. AN - 16334517; 2846483 AB - Two hundred thirty-two nonfilamentous bacterial strains, including saprophytes, plant pathogens, and opportunistic plant human pathogens, were screened for the ability to produce cutinases (cutin-degrading esterases). Initially, esterase activity of culture filtrates of strains grown in nutrient broth-yeast extract medium supplemented with 0.4% apple or tomato cutin was determined by a spectrophotometric assay utilizing the model substrate p-nitrophenyl butyrate. The culture filtrates of the 10 Pseudomonas aeruginosa strains tested exhibited the highest esterase activity, with value of > 500 nmol/min/ml. Of these 10 strains, 3 (K799, 1499A, and ADR41352) demonstrated significant induction (10-fold or above) of esterase activity by addition of cutin to nutrient broth-yeast extract medium. The ability of culture filtrates of the three strains to cause release of apple cutin monomers was confirmed by a novel high-performance liquid chromatography technique. JF - Applied and Environmental Microbiology AU - Fett, W F AU - Gerard, H C AU - Moreau, R A AU - Osman, S F AU - Jones, LE AD - Plant Sci. Res. Unit, Eastern Reg. Res. Cent., Agric. Res. Serv., USDA, Philadelphia, PA 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2123 EP - 2130 VL - 58 IS - 7 SN - 0099-2240, 0099-2240 KW - cutin KW - esterase KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - degradation KW - bacteria KW - Pseudomonas aeruginosa KW - production KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Screening+of+nonfilamentous+bacteria+for+production+of+cutin-degrading+enzymes.&rft.au=Fett%2C+W+F%3BGerard%2C+H+C%3BMoreau%2C+R+A%3BOsman%2C+S+F%3BJones%2C+LE&rft.aulast=Fett&rft.aufirst=W&rft.date=1992-01-01&rft.volume=58&rft.issue=7&rft.spage=2123&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - degradation; bacteria; production; Pseudomonas aeruginosa ER - TY - JOUR T1 - The economic potential for improved fiber recovery from recycled papermills. AN - 16334196; 2840255 AB - Improvement in the efficiency of secondary fiber papermills through fiber recovery from mill tailings or reject streams is important. Improved contaminant removal, reduced sludge disposal cost, and increased economic performance can be obtained using fluid shear field principles. This paper looks at the economic feasibility of using this principle to improve fiber recovery and contaminant removal from a recycled papermill recycling old newspaper into newsprint. JF - Forest Products Journal AU - Marcin, T C AU - Klungness, J H AD - USDA Forest Serv., Forest Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 21 EP - 26 VL - 42 IS - 9 SN - 0015-7473, 0015-7473 KW - Pollution Abstracts KW - recycling KW - paper industry wastes KW - economics KW - sludge disposal KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Products+Journal&rft.atitle=The+economic+potential+for+improved+fiber+recovery+from+recycled+papermills.&rft.au=Marcin%2C+T+C%3BKlungness%2C+J+H&rft.aulast=Marcin&rft.aufirst=T&rft.date=1992-01-01&rft.volume=42&rft.issue=9&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Forest+Products+Journal&rft.issn=00157473&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - paper industry wastes; sludge disposal; recycling; economics ER - TY - JOUR T1 - Differentiation of pathogenic and non-pathogenic serotype 1 Marek's disease viruses (MDVs) by the polymerase chain reaction amplification of the tandem direct repeats within the MDV genome. AN - 16333443; 2845397 AB - There are no simple, direct methods to reliably distinguish oncogenic serotype 1 Marek's disease viruses (MDVs) from their attenuated variants. The present study was an attempt to apply polymerase chain reaction (PCR) to develop a rapid and sensitive assay for the presence of the MDV genome. PCR oligos were chosen to flank the 132-base-pair tandem direct repeats in the serotype 1 MDV genome. The PCR reaction was specific for serotype 1 MDVs, amplifying fragments corresponding to one to three copies of the tandem repeats present in Md11/8, JM/102W, and GA viruses. A high-molecular-weight DNA smear was observed when the DNA from an attenuated Md11/100 was PCR-amplified. Use of the PCR technique allowed the detection of two copies of the 132-base-pair repeat in the DNA extracted from MDV-induced lymphomas removed from two chickens. JF - Avian Diseases AU - Silva, R F AD - USDA-ARS, Avian Dis. and Oncol. Lab., 3606 E. Mount Hope Rd., East Lansing, MI 48823, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 521 EP - 528 VL - 36 IS - 3 SN - 0005-2086, 0005-2086 KW - Marek's disease virus KW - non-pathogenic strains KW - pathogenic strains KW - repeated sequence KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Virology & AIDS Abstracts KW - gene amplification KW - identification KW - genomes KW - pathogenicity KW - polymerase chain reaction KW - W2 32410:Veterinary Medicine: Diagnosis KW - V 22141:Diagnosis KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16333443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Differentiation+of+pathogenic+and+non-pathogenic+serotype+1+Marek%27s+disease+viruses+%28MDVs%29+by+the+polymerase+chain+reaction+amplification+of+the+tandem+direct+repeats+within+the+MDV+genome.&rft.au=Silva%2C+R+F&rft.aulast=Silva&rft.aufirst=R&rft.date=1992-01-01&rft.volume=36&rft.issue=3&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - gene amplification; identification; genomes; pathogenicity; polymerase chain reaction ER - TY - JOUR T1 - Use of pathogen filtrate to differentiate physiological resistance of dry bean to white mold disease. AN - 16332115; 2842709 AB - White mold, caused by Sclerotinia sclerotiorum (Lib.) de Bary, is a major concern to the dry bean (Phaseolus vulgaris L.) industry because it reduces yield. Incorporating partial physiological resistance (PPR) into bean is one strategy to combat the disease, but this requires a reliable screening technique. The objective of this work was to develop a reliable screening method to identify bean germplasm that express PPR to S. sclerotiorum . An in vitro method that assayed weight of calli formed on a medium amended with crude culture filtrate of S. sclerotiorum was evaluated. JF - Crop Science AU - Miklas, P N AU - Grafton, K F AU - Secor, G A AU - McClean, P E AD - USDA-ARS, Tropical Agric. Res. Stn., P.O. Box 70, Mayaguez, 00681 Puerto Rico Y1 - 1992 PY - 1992 DA - 1992 SP - 310 EP - 312 VL - 32 IS - 2 SN - 0011-183X, 0011-183X KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - screening KW - resistance KW - Phaseolus vulgaris KW - white mold KW - Sclerotinia sclerotiorum KW - K 03089:Fungi: plant KW - A 01030:General KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16332115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Use+of+pathogen+filtrate+to+differentiate+physiological+resistance+of+dry+bean+to+white+mold+disease.&rft.au=Miklas%2C+P+N%3BGrafton%2C+K+F%3BSecor%2C+G+A%3BMcClean%2C+P+E&rft.aulast=Miklas&rft.aufirst=P&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phaseolus vulgaris; Sclerotinia sclerotiorum; white mold; resistance; screening ER - TY - JOUR T1 - Latent-period responses of stem rust in tall fescue incubated at four temperatures. AN - 16331905; 2842673 AB - Stem rust, caused by Puccinia graminis Pers.:Pers. subsp. graminicola Z. Urban, has recently been found on tall fescue (Festuca arundinacea L.) grown for seed in western Oregon. Development of stem rust in the field is affected, to a large extent, by environmental conditions. We conducted controlled environment studies to determine the effect of incubation temperature on development of uredinia in five tall fescue cultivars. Differences in latent period (time from inoculation to urediniospore production) were observed for stem rust development in tall fescue incubated at 10, 18, 25, and 27 degree C. Maximum number of erumpent pustules occurred 18, 12, 9, and 8 d after inoculation at 10, 18, 25, and 27 degree C, respectively. JF - Crop Science AU - Welty, R E AU - Barker, R E AD - USDA-ARS, Natl. Forage Seed Prod. Res. Cent., Oregon State Univ., 3450 S.W. Campus Way, Corvallis, OR 97331-7102, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 589 EP - 592 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - subsp.graminicola KW - temperature KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Festuca arundinacea KW - latent period KW - stem rust KW - Puccinia graminis KW - A 01018:Animal foods KW - K 03089:Fungi: plant UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16331905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Latent-period+responses+of+stem+rust+in+tall+fescue+incubated+at+four+temperatures.&rft.au=Campbell%2C+B+C%3BBragg%2C+T+S%3BTurner%2C+CE&rft.aulast=Campbell&rft.aufirst=B&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Puccinia graminis; Festuca arundinacea; stem rust; latent period ER - TY - JOUR T1 - Riboflavin production during growth of Micrococcus luteus on pyridine. AN - 16329406; 2843656 AB - Micrococcus luteus produced 29 mu M riboflavin during growth on 6.5 mM pyridine but not during growth on other substrates. On the basis of the results of radiolabelling studies, riboflavin was not directly synthesized from pyridine. Pyridine may interfere with riboflavin biosynthesis or elicit a general stress response in M. luteus . JF - Applied and Environmental Microbiology AU - Sims, G K AU - O'Loughlin, E J AD - ARS-USDA, W-321 Turner Hall, 1102 South Goodwin, Univ. Illinois, Urbana, IL 61801, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 3423 EP - 3425 VL - 58 IS - 10 SN - 0099-2240, 0099-2240 KW - pyridine KW - riboflavine KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - biosynthesis KW - Micrococcus luteus KW - A 01006:Enzymes & cofactors KW - J 02724:Pigments and vitamins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16329406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Riboflavin+production+during+growth+of+Micrococcus+luteus+on+pyridine.&rft.au=Sims%2C+G+K%3BO%27Loughlin%2C+E+J&rft.aulast=Sims&rft.aufirst=G&rft.date=1992-01-01&rft.volume=58&rft.issue=10&rft.spage=3423&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Micrococcus luteus; biodegradation; biosynthesis ER - TY - JOUR T1 - Induced mutations of a genetic suppressor of resistance to wheat stem rust. AN - 16328450; 2842968 AB - A genetic suppressor of resistance to stem rust, Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn., of wheat (Triticum aestivum L.) is on the long arm of chromosome 7D. Mutation or inactivation of the suppressor gene would allow expression of the suppressed resistance genes already present in hexaploid wheat or of resistance genes transferred to wheat from diploid or tetraploid relatives. Our objective was to induce a mutation of the suppressor gene and describe its inheritance. Seed treatment of the hexaploid wheat cultivar Canthatch (CTH) with ethyl methanesulfonate produced 15 stem rust-resistant mutants. The mutant lines were tested for reaction to 13 races of stem rust, and crossed with CTH and 7D aneuploids of CTH and "Chinese Spring" (CS). JF - Crop Science AU - Williams, N D AU - Miller, J D AU - Klindworth, D L AD - USDA-ARS, Northern Crop Sci. Lab., P.O. Box 5677, State Univ. Station, Fargo, ND 58105-5677, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 612 EP - 616 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - f.sp.tritici KW - tritici KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Triticum aestivum KW - suppressors KW - genes KW - mutation KW - resistance KW - inheritance KW - Puccinia graminis KW - stem rust KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16328450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Molecular+characterization+of+6-phosphofructo-1-kinase+purified+from+Lymantria+dispar+.&rft.au=Valaitis%3BKemp%2C+R+G&rft.aulast=Valaitis&rft.aufirst=&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genes; suppressors; mutation; resistance; inheritance; stem rust; Triticum aestivum; Puccinia graminis ER - TY - JOUR T1 - Influence of temperature and moisture on vegetative propagule germination of Potamogeton species: Implications for aquatic plant management. AN - 16327905; 2832743 AB - Laboratory experiments indicated that Potamogeton nodosus winter buds and Potamogeton pectinatus tubers germinated in response to water-saturated substrate at 15, 20, and 25 degree C. Outdoor experiments with intact sediment cores indicated that winter buds of Potamogeton gramineus also germinated in response to saturating conditions at low temperatures (10-15 degree C). P. gramineus winter buds and P. pectinatus tubers, collected from irrigation canals during the winters of 1985 and 1986, germinated within 10 days of being placed at 25 degree C, indicating that germination was inhibited by environmental conditions and not by innate dormancy. Measurements made in the springs of 1985, 1986, 1987, and 1989 in the Byrnes canal, demonstrated that terrestrial forms of P. gramineus were present at densities ranging from 50 to 746 m super(-2), accounting for 30-96% of the total number of winter buds present per square meter. Penetration of accumulated rainwater into the sediment appeared to influence germination of P. gramineus winter buds and may explain why deep winter buds do not germinate prior to the canal filling with water in the spring. The ability to induce formation of terrestrial forms may lead to new management approaches. JF - Aquatic Botany AU - Spencer, D F AU - Ksander, G G AD - USDA-ARS Aquat. Weed Lab., Univ. California, Davis, CA 95616-8537, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 351 EP - 364 VL - 43 IS - 4 SN - 0304-3770, 0304-3770 KW - temperature KW - vegetative propagules KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - asexual reproduction KW - aquatic plants KW - Freshwater KW - dormancy KW - Potamogeton KW - water content KW - temperature effects KW - management KW - germination KW - D 04640:Other angiosperms KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Botany&rft.atitle=Influence+of+temperature+and+moisture+on+vegetative+propagule+germination+of+Potamogeton+species%3A+Implications+for+aquatic+plant+management.&rft.au=Spencer%2C+D+F%3BKsander%2C+G+G&rft.aulast=Spencer&rft.aufirst=D&rft.date=1992-01-01&rft.volume=43&rft.issue=4&rft.spage=351&rft.isbn=&rft.btitle=&rft.title=Aquatic+Botany&rft.issn=03043770&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - asexual reproduction; aquatic plants; water content; temperature effects; management; dormancy; temperature; germination; Potamogeton; Freshwater ER - TY - JOUR T1 - Attraction of female papaya fruit fly (Diptera: Tephritidae) to male pheromone and host fruit. AN - 16327536; 2840492 AB - A green papaya fruit or an extract of green papaya fruit peel increased unmated female papaya fruit fly (Toxotrypana curvicauda Gerstaecker) attraction to male pheromone at low pheromone release rates. Green papaya peel extract also increased mated female attraction to male pheromone, but only at the highest pheromone release rates tested. Such enhanced responses may aid the ability of females to locate hosts by responding to a combination of male pheromone released from host fruit and fruit odor. JF - Environmental Entomology AU - Landolt, P J AU - Reed, H C AU - Heath, R R AD - Insect-Attractants, Behav., and Basic Biol. Res. Lab., USDA, ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1154 EP - 1159 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Toxotrypana curvicauda KW - Tephritidae KW - attractancy KW - kairomones KW - Diptera KW - sex pheromone KW - Z 05193:Orientation KW - D 04659:Insects KW - Y 25653:Insects KW - R 18052:Feeding KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Attraction+of+female+papaya+fruit+fly+%28Diptera%3A+Tephritidae%29+to+male+pheromone+and+host+fruit.&rft.au=Landolt%2C+P+J%3BReed%2C+H+C%3BHeath%2C+R+R&rft.aulast=Landolt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1154&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxotrypana curvicauda; Tephritidae; Diptera; sex pheromone; kairomones; attractancy ER - TY - JOUR T1 - Phylogeny of symbiotic bacteria of four weevil species (Coleoptera: Curculionidae) based on analysis of 16S ribosomal DNA. AN - 16326916; 2844240 AB - In this report, molecular phylogenetic analysis of 16S ribosomal RNAs indicates that symbiotes from taxonomically divergent weevils are descendents of distinctly separate bacterial lineages. The intracellular symbiotes of two rhyncophorine weevils, Sitophilus oryzae L. and Sitophilus zeamais Mots, descended from the same hypothetical ancestor and share a common lineage with the secondary symbiote of the pea aphid, Acyrthosiphon pisum (Harris). These symbiotes are members of the Enterobacteriaceae in the gamma -3 subgroup of the Proteobacteria. The symbiotes of two cleonine weevils, Bangasternus orientalis (Capiomont) and Rhinocyllus conicus (Froelich), are phylogenetically distinct from the symbiotes found in the rhyncophorines and are members of a branch of the alpha -subdivision which include the cytoplasmic incompatibility microorganisms of insects (CIMS), Ehrlichia and Anaplasma . The implication of genetic divergence of bacterial symbiotes to weevil speciation is discussed. JF - Insect Biochemistry and Molecular Biology AU - Campbell, B C AU - Bragg, T S AU - Turner, CE AD - West. Reg. Res. Cent., USDA-ARS, 800 Buchanan St., Albany, CA 94710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 415 EP - 421 VL - 22 IS - 5 SN - 0965-1748, 0965-1748 KW - rRNA 16S KW - Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Coleoptera KW - phylogeny KW - symbionts KW - Anaplasma KW - ribosomes KW - Ehrlichia KW - Curculionidae KW - bacteria KW - DNA KW - Enterobacteriaceae KW - J 02725:DNA KW - J 02870:Invertebrate bacteriology KW - Z 05200:Symbiosis & commensalism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16326916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Purification+and+characterization+of+vitellogenin+from+the+gypsy+moth%2C+Lymantria+dispar+.&rft.au=Hiremath%2C+S%3BEshita%2C+S&rft.aulast=Hiremath&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Curculionidae; Coleoptera; Enterobacteriaceae; Ehrlichia; Anaplasma; phylogeny; ribosomes; DNA; bacteria; symbionts ER - TY - JOUR T1 - Genes for resistance to stripe rust in "Tres: wheat. AN - 16325673; 2842975 AB - The genetic basis of stripe rust (Puccinia striiformis Westend.) resistance in the club wheat (Triticum aestivum L.) "Tres" was not previously known. This greenhouse, growth chamber, and field study was conducted to determine the inheritance of resistance in Tres and the relationship of genes for resistance in Tres to genes in other wheat cultivars. Tres was crossed with 20 wheat cultivars with genes Yr1, Yr2, Yr3a, Yr4a, Yr4b, Yr5 through Yr10, and 18 other genes for stripe rust resistance not officially named, and with "Michigan Amber", which is susceptible to all identified stripe rust races in North America. Seedlings of parents and F sub(1) and F sub(2) progeny from all crosses, back-crosses of "Chinese 166'/Tres, and F sub(3) progeny from Tres/"Lemhi" were tested for response to selected races. JF - Crop Science AU - Chen, Zianming AU - Line, R F AD - USDA-ARS, Pullman, WA 99164-6430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 692 EP - 696 VL - 32 IS - 3 SN - 0011-183X, 0011-183X KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - Puccinia striiformis KW - Triticum aestivum KW - genes KW - resistance KW - cultivars KW - stripe rust KW - A 01030:General KW - A 01026:Gramineous crops KW - G 07357:GENERAL KW - W 30965:Miscellaneous, Reviews KW - W2 32430:Plant Diseases: Control and resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16325673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Genes+for+resistance+to+stripe+rust+in+%22Tres%3A+wheat.&rft.au=Chen%2C+Zianming%3BLine%2C+R+F&rft.aulast=Chen&rft.aufirst=Zianming&rft.date=1992-01-01&rft.volume=32&rft.issue=3&rft.spage=692&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - genes; cultivars; resistance; stripe rust; Puccinia striiformis; Triticum aestivum ER - TY - JOUR T1 - Responses of Carpophilus hemipterus (Coleoptera: Nitidulidae) and other sap beetles to the pheromone of C. hemipterus and host-related coattractants in California field tests. AN - 16323811; 2841085 AB - The aggregation pheromone of Carpophilus hemipterus (L.), was field tested in California. A 4-d preliminary study in plantings of figs and stone fruits was followed by long-term studies in a date garden and a stone fruit orchard. The pheromone was most effective in combination with host-related coattractants. In the date garden, for example, traps baited with pheromone plus bread dough caught an overall mean of 1,152 C. hemipterus , but those baited with only the pheromone or dough caught only 23 and 3 per trap, respectively. In the date garden, peak response to the traps occurred during June, although temperatures were favorable for beetle flight throughout most of the year. In all experiments, both sexes responded similarly. JF - Environmental Entomology AU - Bartelt, R J AU - Dowd, P F AU - Vetter, R S AU - Shorey, H H AU - Baker, T C AD - USDA-Agric. Res. Serv., Natl. Cent. Agric. Util. Res., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1143 EP - 1153 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - pheromone traps KW - pest control KW - USA, California KW - attractants KW - Nitidulidae KW - Coleoptera KW - Carpophilus hemipterus KW - aggregation pheromone KW - Z 05193:Orientation KW - D 04659:Insects KW - R 18052:Feeding KW - Y 25883:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16323811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Responses+of+Carpophilus+hemipterus+%28Coleoptera%3A+Nitidulidae%29+and+other+sap+beetles+to+the+pheromone+of+C.+hemipterus+and+host-related+coattractants+in+California+field+tests.&rft.au=Bartelt%2C+R+J%3BDowd%2C+P+F%3BVetter%2C+R+S%3BShorey%2C+H+H%3BBaker%2C+T+C&rft.aulast=Bartelt&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1143&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Carpophilus hemipterus; Nitidulidae; Coleoptera; USA, California; attractants; aggregation pheromone; pest control; pheromone traps ER - TY - JOUR T1 - Watershed ecosystem analysis as a basis for multiple-use management of eastern forests. AN - 16323102; 2841041 AB - There is a need to incorporate more science into management decisions for Eastern forests, and thereby convincingly demonstrate to forest managers and the public why certain combinations of uses may or may not be compatible. One proven approach for doing this is to use watershed ecosystem analysis. Small watersheds, usually < 100 ha in area, serve as a convenient ecosystem for studying how forests function in terms of cycling energy, nutrients, and water. Results of these studies allow assessments of forest health and productivity, and evaluations of impacts of both natural and human-related disturbances. This paper provides illustrations of how watershed ecosystem analysis can be used to study the effects of current harvesting practices, acidic deposition, and past land use. The paper also shows how recommendations for land use are derived from watershed ecosystem analysis, and how they are put into practice. JF - Ecological Applications AU - Hornbeck, J W AU - Swank, W T AD - USDA Forest Serv., Northeast. Forest Exp. Stn., Durham, NH 03824, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 238 EP - 247 VL - 2 IS - 3 SN - 1051-0761, 1051-0761 KW - USA, Eastern KW - ecosystem analysis KW - multiple use of resources KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - forests KW - environment management KW - watersheds KW - USA, East KW - Freshwater KW - environmental surveys KW - resource management KW - D 04700:Management KW - Q5 08523:Conservation, wildlife management and recreation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16323102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Watershed+ecosystem+analysis+as+a+basis+for+multiple-use+management+of+eastern+forests.&rft.au=Hornbeck%2C+J+W%3BSwank%2C+W+T&rft.aulast=Hornbeck&rft.aufirst=J&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - multiple use of resources; forests; environment management; watersheds; environmental surveys; resource management; ecosystem analysis; USA, East; Freshwater ER - TY - JOUR T1 - Criteria for nest site selection in honey bees (Hymenoptera: Apidae): Preferences between pheromone attractants and cavity shapes. AN - 16322258; 2840525 AB - Nerolic acid, the second most abundant compound in the Nasonov pheromone of the honey bee, Apis mellifera L., was investigated to determine its importance as a component in synthetic attractants for honey bees of Africanized and European populations. Both populations of bees preferred synthetic pheromone blends containing nerolic acid in combination with citral and geraniol to those containing only citral and geraniol. These findings indicate that honey bee swarms of both Africanized and European populations recognize and respond in the same manner to synthetic Nasonov pheromone, and that nerolic acid exerts an important synergistic effect on the attractiveness of other Nasonov components. Nest cavity shape, tapered cylinder versus rectangular prism, apparently is not an important factor in cavity acceptance by honey bee swarms. JF - Environmental Entomology AU - Schmidt, JO AU - Thoenes, A C AD - Carl Hayden Bee Res. Cent., USDA-ARS, 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1130 EP - 1133 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Apis mellifera KW - breeding KW - Hymenoptera KW - Apidae KW - pheromones KW - site selection KW - D 04659:Insects KW - Y 25693:Insects KW - R 18054:Others KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16322258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Criteria+for+nest+site+selection+in+honey+bees+%28Hymenoptera%3A+Apidae%29%3A+Preferences+between+pheromone+attractants+and+cavity+shapes.&rft.au=Schmidt%2C+JO%3BThoenes%2C+A+C&rft.aulast=Schmidt&rft.aufirst=JO&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1130&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; pheromones; breeding; site selection ER - TY - JOUR T1 - Effects of spores dosage and temperature on pathogenic expressions of chalkbrood syndrome caused by Ascosphaera torchioi within larvae of Osmia lignaria propinqua (Hymenoptera: Megachilidae). AN - 16319835; 2841232 AB - The causative agent of chalkbrood in the mason bee Osmia lignaria propinqua Cresson is a fungus recently named Ascosphaera torchioi Youssef & McManus. The present study was undertaken to devise a methodology to measure the infectivity potential of this fungus accurately, based on laboratory experiments designed to assure consumption of all spores by host larvae reared under nonstressful environments. The levels of A. torchioi infection obtained in this study (0.36-8.5%) showed a linear correlation with increasing dose, and these low-level infections overlapped chalkbrood rates found in large field populations studied over a 15-yr period (0.4-2%). The infection rates reported in this study (0.36-8.5%) are, however, much lower than those induced in a recent series of related laboratory studies (57%). JF - Environmental Entomology AU - Torchio, P F AD - Bee Biol. and Syst. Lab., USDA-ARS, Utah State Univ., Logan, UT 84322-5310, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1086 EP - 1091 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - temperature KW - Ascosphaera torchioi KW - Osmia lignaria propinqua KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - dosage KW - pathogenicity KW - chalkbrood disease KW - spores KW - larvae KW - Megachilidae KW - Hymenoptera KW - D 04659:Insects KW - Z 05182:Pathology KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16319835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+spores+dosage+and+temperature+on+pathogenic+expressions+of+chalkbrood+syndrome+caused+by+Ascosphaera+torchioi+within+larvae+of+Osmia+lignaria+propinqua+%28Hymenoptera%3A+Megachilidae%29.&rft.au=Torchio%2C+P+F&rft.aulast=Torchio&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1086&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Megachilidae; Hymenoptera; chalkbrood disease; spores; dosage; pathogenicity; larvae ER - TY - JOUR T1 - Longevity and and germination of Edhazardia aedis (Microspora: Amblyosporidae) spores. AN - 16319076; 2842871 AB - Edhazardia aedis is a polymorphic microsporidium of mosquitoes that is both horizontally and vertically transmitted to its host. Because it is being developed for biological control of mosquitoes, detailed knowledge is needed regarding the longevity and germation of its fragile, mosquito-infectious spore. Spores responsible for horizontal transmission were extracted from 7--10-day-old larvae (reared from infected Aedes aegypti eggs) and purified by Ludox density gradient centrifugation. Mature spores were variable in specific gravity, being found throughout the 20 and 60% zone in Ludox gradients. The optimal environment for spore germination was dilute KCl at pH 10.0-11.0; ammonia inhibited germination. Osmotic inhibition was almost complete in both sucrose and polyethylene glycol at concentrations equivalent to 40 atm. JF - Biocontrol Science and Technology AU - Undeen, AH AU - Becnel, J J AD - USDA-ARS, Med. and Vet. Entomol. Res. Lab., P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 247 EP - 256 VL - 2 IS - 3 SN - 0958-3157, 0958-3157 KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - spores KW - Aedes aegypti KW - biological control KW - spore germination KW - Culicidae KW - Edhazardia aedis KW - longevity KW - pathogens KW - Diptera KW - K 03091:Protozoa: animal KW - Z 05182:Pathology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16319076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biocontrol+Science+and+Technology&rft.atitle=Longevity+and+and+germination+of+Edhazardia+aedis+%28Microspora%3A+Amblyosporidae%29+spores.&rft.au=Undeen%2C+AH%3BBecnel%2C+J+J&rft.aulast=Undeen&rft.aufirst=AH&rft.date=1992-01-01&rft.volume=2&rft.issue=3&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Biocontrol+Science+and+Technology&rft.issn=09583157&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - spores; biological control; spore germination; pathogens; longevity; Aedes aegypti; Culicidae; Edhazardia aedis; Diptera ER - TY - JOUR T1 - The dynamics of water in protein solutions: The field dispersion of deuterium NMR longitudinal relaxation. AN - 16318769; 2841560 AB - The analysis of the field dispersion of the super(2)H-NMR longitudinal relaxation of water in lysozyme, bovine serum albumin (BSA), alkaline phosphatase and hemocyanin solutions was attempted. In all cases, two independent relaxation contributions are required in order to fit the data. For typical globular proteins, the shortest correlation time (10 super(-8) s) is identified with the rotational correlation time of the protein monomer. A second orrelation time (10 super(-7) s)is attributed to protein polydispersity. JF - Biophysical Chemistry AU - Kakalis, L T AU - Kumosinski, T F AD - USDA, ARS, Eastern Reg. Res. Cent., 600 East Mermaid Lane, Philadelphia, PA, 19118, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 39 EP - 49 VL - 43 IS - 1 SN - 0301-4622, 0301-4622 KW - N.M.R. KW - alkaline phosphatase KW - bovine serum albumin KW - dynamics KW - hemocyanin KW - hydration KW - lysozyme KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16318769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biophysical+Chemistry&rft.atitle=The+dynamics+of+water+in+protein+solutions%3A+The+field+dispersion+of+deuterium+NMR+longitudinal+relaxation.&rft.au=Kakalis%2C+L+T%3BKumosinski%2C+T+F&rft.aulast=Kakalis&rft.aufirst=L&rft.date=1992-01-01&rft.volume=43&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Biophysical+Chemistry&rft.issn=03014622&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Purification and characterization of vitellogenin from the gypsy moth, Lymantria dispar . AN - 16316790; 2835707 AB - Vitellogenin (Vg), the precursor of vitellin (Vt), an abundant egg yolk protein, was purified from the hemolymph of the gypsy moth (Lymantria dispar ) using FPLC techniques. The purified protein gave a single band in native polyacrylamide gel electrophoretic analysis corresponding to a size of similar to 487 kDa. It consisted of three types of subunits of 190, 165 and 36 kDa (Vg190, Vg165 and Vg36, respectively). Sodium dodecyl sulfate-PAGE analysis of egg extracts showed the presence of three proteins having sizes identical to those of Vg subunits (Vt190, Vt165 and Vt36, respectively). The larger Vg subunits were found to share sequence homology by western blot analysis, peptide mapping, amino acid composition and N-terminal sequencing. The change in the proportion of these subunits observed during development suggested that Vg165 might be derived from Vg190. The N-terminal sequences of Vt165 and Vt36 were identical to their respective counterparts in Vg. This indicates that processing of Vg into Vt does not involve proteolytic cleavage at the N-termini of the subunits. JF - Insect Biochemistry and Molecular Biology AU - Hiremath, S AU - Eshita, S AD - USDA Forest Serv., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 605 EP - 611 VL - 22 IS - 6 SN - 0965-1748, 0965-1748 KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - amino acid sequence KW - gel electrophoresis KW - subunit structure KW - vitellogenin KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16316790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Purification+and+characterization+of+vitellogenin+from+the+gypsy+moth%2C+Lymantria+dispar+.&rft.au=Hiremath%2C+S%3BEshita%2C+S&rft.aulast=Hiremath&rft.aufirst=S&rft.date=1992-01-01&rft.volume=22&rft.issue=6&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - amino acid sequence; gel electrophoresis; subunit structure ER - TY - JOUR T1 - Regulation of seasonal egg hatch by plant phenology in Stethoconus japonicus (Heteroptera: Miridae), a specialist predator of Stephanitis pyrioides (Heteroptera: Tingidae). AN - 16315893; 2820998 AB - Stethoconus japonicus Schumacher altered its oviposition site on azalea, Rhododendron spp., plants as the summer progressed. During June, eggs were deposited mostly in the midrib on the new growth. As leaves aged, the oviposition site shifted to current year's stems and the leaf scars of year-old growth. Eggs of S. japonicus began to hatch in the field in late June when early instars of the second generation of its prey, the azalea lace bug, Stephanitis pyrioides (Scott), were present. The late hatch of this specialist predator resulted in synchrony with the second generation of its prey. Asynchrony and late hatch of overwintered eggs makes S. japonicus a suitable candidate for IPM programs because the predator may escape the effects of pesticides directed at the first generation of azalea lace bug nymphs. JF - Environmental Entomology AU - Neal, JW Jr AU - Haldemann, R L AD - Florist and Nursery Crops Lab., Build. 470, Plant Sci. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 793 EP - 798 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - Stephanitis pyrioides KW - Rhododendron KW - Stethoconus japonicus KW - Miridae KW - Tingidae KW - predators KW - egg production KW - pest control KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16315893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Wildland+Fire&rft.atitle=Simulations+of+horizontal+roll+vortex+development+above+lines+of+extreme+surface+heating.&rft.au=Heilman%2C+W+E%3BFast%2C+J+D&rft.aulast=Heilman&rft.aufirst=W&rft.date=1992-01-01&rft.volume=2&rft.issue=2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Wildland+Fire&rft.issn=10498001&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stethoconus japonicus; Stephanitis pyrioides; Rhododendron; Miridae; Tingidae; predators; egg production; pest control ER - TY - JOUR T1 - Area-wide effect on oribatid mites (Acari) following application of lindane for protection of lodgepole pine from bark beetle attack. AN - 16312824; 2820875 AB - The effect of lindane on numbers and community structure of oribatid mites was studied in northern Montana. Tress on five 0.4-ha plots were sprayed with lindane at 5.5 kg/ha (AI) in a simulated operational program to protect lodgepole pine from bark beetles. Sprayed plots and paired control plots were sampled before spray application and five times after treatment over a 2-yr period. Numbers of immature specimens changed more than numbers of adults. Both were significantly depressed 113 days after treatment. Two superfamilies were significantly affected after spraying. Of five measures of community structure, none demonstrated an effect; however, the powers of the statistical tests were quite low. The importance of statistical power in studies of effect of pesticides on nontarget species is discussed. Because the observed effects were short-lived and of relatively small amplitude, we conclude it is unlikely there is a lasting effect on the oribatid community. JF - Environmental Entomology AU - Hoy, J B AU - Shea, P J AD - Pacific Southwest Res. Stn., Forest Serv., USDA, P.O. Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 745 EP - 750 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - lindane KW - Ecology Abstracts; Entomology Abstracts KW - insecticides KW - pest control KW - Oribatida KW - Acari KW - USA, Montana KW - nontarget organisms KW - D 04660:Arachnids KW - D 04803:Pollution effects KW - Z 05205:Populations & general ecology KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16312824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Area-wide+effect+on+oribatid+mites+%28Acari%29+following+application+of+lindane+for+protection+of+lodgepole+pine+from+bark+beetle+attack.&rft.au=Hoy%2C+J+B%3BShea%2C+P+J&rft.aulast=Hoy&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oribatida; Acari; USA, Montana; insecticides; nontarget organisms; pest control ER - TY - JOUR T1 - Influence of maternal age and host deprivation on egg production and parasitization by Microplitis croceipes (Hym.: Braconidae). AN - 16312395; 2834244 AB - The effect of maternal age and host Heliothis virescens (F.) deprivation on egg production and allocation by Microplitis croceipes (Cresson) was determined in the laboratory on 0.5, 1.0, 3.0, 6.0, 9.0, and 12.0 days old parasitoids. In host-deprived parasitoids, newly-emerged (0.5-day old) females produced significantly fewer eggs than older ones; egg production peaked 3 to 6 days after emergence and declined thereafter. However, the number of eggs found in undeprived parasitoids at various ages suggested a cyclical pattern of egg production. The rate of parasitization by host-deprived M. croceipes was higher in 1.0 to 6.0 days old than in newly emerged or older females and was correlated strongly with egg production (r = 0.93). The first observation on premature larval hatching in M. croceipes was documented. JF - Entomophaga AU - Navasero, R AU - Elzen, G AD - Southern Field Crop Insect Manage. Lab., USDA, ARS, P.O. Box 346, Stoneville, MI 38776, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 37 EP - 44 VL - 37 IS - 1 SN - 0013-8959, 0013-8959 KW - host-parasite interaction KW - Ecology Abstracts; Entomology Abstracts KW - Lepidoptera KW - Braconidae KW - Microplitis croceipes KW - egg production KW - parasitism KW - Noctuidae KW - Hymenoptera KW - Heliothis virescens KW - Z 05201:Parasitism: entomophagous KW - D 04659:Insects KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16312395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomophaga&rft.atitle=Influence+of+maternal+age+and+host+deprivation+on+egg+production+and+parasitization+by+Microplitis+croceipes+%28Hym.%3A+Braconidae%29.&rft.au=Navasero%2C+R%3BElzen%2C+G&rft.aulast=Navasero&rft.aufirst=R&rft.date=1992-01-01&rft.volume=37&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Entomophaga&rft.issn=00138959&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Microplitis croceipes; Heliothis virescens; Hymenoptera; Braconidae; Lepidoptera; Noctuidae; parasitism; egg production ER - TY - JOUR T1 - Aquatic arthropods in California rice paddies: Effects of water-drainage versus continuous-flood regimes on abundance and species composition. AN - 16310717; 2823996 AB - In conjunction with experiments to evaluate water drainage as a control method for the rice water weevil, Lissorhoptrus oryzophilus , studies were performed to compare the abundance and species composition of aquatic arthropods in two sets of continuously flooded and temporarily drained but reflooded rice, Oryza sativa , paddies. A total of 1,736 individuals representing 22 arthropod taxa was collected. Few differences in abundance were detected; however, Notonecta spp. were significantly more abundant in reflooded paddies. Percentage similarity (PS) between paired treatments was > 0.50 on all but one date; relatively high PS values on the first sampling dates suggest that the aquatic arthropod community is able to recover rapidly following reflooding. Several taxa appear to possess traits that enhance survival in a rice paddy subjected to temporary drainage. Implications are discussed for the wide-scale use of drainage on California rice acreage. JF - Environmental Entomology AU - Hesler, L S AU - Grigarick, AL AD - Northern Grain Insects Res. Lab., USDA-ARS, Brookings, SD 57006, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 731 EP - 736 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - USA, California, Biggs KW - community structure KW - cultural control KW - nontarget organisms KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Entomology Abstracts KW - flooding KW - community composition KW - aquatic animals KW - Freshwater KW - pest control KW - USA, California KW - Insecta KW - agriculture KW - Oryza sativa KW - rice fields KW - Arthropoda KW - water levels KW - abundance KW - Q1 08463:Habitat community studies KW - Z 05210:Aquatic entomology KW - Q1 08485:Species interactions: pests and control KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16310717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Aquatic+arthropods+in+California+rice+paddies%3A+Effects+of+water-drainage+versus+continuous-flood+regimes+on+abundance+and+species+composition.&rft.au=Hesler%2C+L+S%3BGrigarick%2C+AL&rft.aulast=Hesler&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - flooding; community composition; water levels; pest control; aquatic animals; agriculture; rice fields; abundance; cultural control; community structure; nontarget organisms; Arthropoda; Oryza sativa; Insecta; USA, California; Freshwater ER - TY - JOUR T1 - Hog cholera diagnostic techniques. AN - 16307557; 2832857 AB - Clinical signs and lesions can sometimes provide the basis for a presumptive diagnosis of hog cholera (HC). However, an accurate diagnosis requires laboratory testing. The usual procedure for the detection of viral antigen is the examination of cryostat sections stained with fluorescein-conjugated HC antiserum. A more definitive technique is isolation of the virus in PK-15 cell cultures and identification of the viral antigen in cells using an HC fluorescent antibody conjugate. Hog cholera surveillance must rely on serology. The fluorescent antibody virus neutralization (FAVN) test is the classical technique, and HC and BVD antibody can usually be differentiated if HC-positive serum samples are tested against both viruses. Recently the enzyme-linked immunosorbent assay (ELISA) and peroxidase-labeled antibody tests have become the commonly used techniques. JF - Comparative Immunology, Microbiology and Infectious Diseases AU - Pearson, JE AD - USDA, APHIS, S&T, Natl. Vet. Serv. Lab., Diagn. Virology Lab., Ames, IA, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 213 EP - 219 VL - 15 IS - 3 SN - 0147-9571, 0147-9571 KW - Microbiology Abstracts B: Bacteriology KW - neutralization KW - isolation KW - cross-reactivity KW - hog cholera virus KW - diagnostic agents KW - enzyme-linked immunosorbent assay KW - J 02831:Techniques and reagents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16307557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+Immunology%2C+Microbiology+and+Infectious+Diseases&rft.atitle=Hog+cholera+diagnostic+techniques.&rft.au=Pearson%2C+JE&rft.aulast=Pearson&rft.aufirst=JE&rft.date=1992-01-01&rft.volume=15&rft.issue=3&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Comparative+Immunology%2C+Microbiology+and+Infectious+Diseases&rft.issn=01479571&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - hog cholera virus; isolation; cross-reactivity; enzyme-linked immunosorbent assay; neutralization; diagnostic agents ER - TY - JOUR T1 - Fate of starch-containing plastic films exposed in aquatic habitats. AN - 16307076; 2822911 AB - Plastic films containing cornstarch (40% dry weight) in combination with polyethylene (PE) and polyethylene-co-acrylic acid (EAA) were exposed to river and pond habitats for up to 60 days. Fourier transform infrared (FTIR) spectroscopic analysis of the starch-plastic films indicated that up to about 40% of starch in the films disappeared after 60 days' exposure. PE and EAA components were unchanged during this period. A diverse microbial biofilm quickly accumulated on each of the plastic films in both environments. Although the amount of biofilm accumulation was greater in the river environment than in the pond environment, there was little quantitative difference in the extent of biofilm formation on plastic films composed of PE, EAA, or starch-PE-EAA in either environment. All three types of plastic films were heavily colonized by a midge-fly larva (Dicrotendipes sp.) by 60 days of exposure in the aquatic environments, but only starch-containing plastic films showed any evidence of physical damage that could have been a result of ingestion of the plastic by the larvae (pond > river). JF - Current Microbiology AU - Imam, SH AU - Gould, J M AU - Gordon, SH AU - Kinney, M P AU - Ramsey, A M AU - Tosteson, T R AD - Biopolymer Res. Unit, Natl. Cent. Agric. Util. Res., Agric. Res. Serv., USDA, 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1 EP - 8 VL - 25 IS - 1 SN - 0343-8651, 0343-8651 KW - aquatic bacteria KW - aquatic environments KW - containing KW - starch KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; ASFA Marine Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - plastics KW - films KW - Freshwater KW - rivers KW - ponds KW - biofilms KW - aquatic environment KW - Q5 08503:Characteristics, behavior and fate KW - D 04310:Freshwater KW - Q4 27480:Environmental Applications/Impact KW - A 01016:Microbial degradation KW - J 02905:Water KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16307076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Microbiology&rft.atitle=Fate+of+starch-containing+plastic+films+exposed+in+aquatic+habitats.&rft.au=Imam%2C+SH%3BGould%2C+J+M%3BGordon%2C+SH%3BKinney%2C+M+P%3BRamsey%2C+A+M%3BTosteson%2C+T+R&rft.aulast=Imam&rft.aufirst=SH&rft.date=1992-01-01&rft.volume=25&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - ponds; biodegradation; plastics; biofilms; films; rivers; aquatic environment; starch; aquatic bacteria; containing; Freshwater ER - TY - JOUR T1 - Populations of Salmonella typhimurium in internal organs of experimentally infected carrier swine. AN - 16306277; 2832999 AB - Experiments were conducted to determine comparative populations of Salmonella typhimurium in the most commonly infected body organs of long-term carrier swine. Results of that study provided information indicating the locations in the body that probably should be targeted in efforts to reduce or eliminate the Salmonella carrier state. The objective of the study reported here was to determine the populations of S. typhimurium in tonsils, ileum, cecum, colon, mandibular lymph nodes, and ileocolic lymph nodes of experimentally infected long-term carrier swine. JF - American Journal of Veterinary Research AU - Wood, R L AU - Rose, R AD - Natl. Anim. Dis. Cent., Agric. Res. Serv., USDA, P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 653 EP - 658 VL - 53 IS - 5 SN - 0002-9645, 0002-9645 KW - tonsils KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - gnotobiotics KW - lymph nodes KW - infection KW - Salmonella typhimurium KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16306277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=Populations+of+Salmonella+typhimurium+in+internal+organs+of+experimentally+infected+carrier+swine.&rft.au=Wood%2C+R+L%3BRose%2C+R&rft.aulast=Wood&rft.aufirst=R&rft.date=1992-01-01&rft.volume=53&rft.issue=5&rft.spage=653&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; infection; gnotobiotics; gastrointestinal tract; lymph nodes ER - TY - JOUR T1 - Influence of conidial color on inactivation of several entomogenous fungi (Hyphomycetes) by simulated sunlight. AN - 16302900; 2813175 AB - Entomogeneous fungi with pigmented conidia varying from black to white (Aspergillus niger , black; mutant A. niger cinnamomeus , tan; Metarhizium anisopliae , dark green; Nomuraea rileyi , blue-green; mutant N. rileyi , yellow; and Beauveria bassiana , white) were exposed to simulated sunlight (SUV) for 2, 4, 8, 16, 24, and 32 h. The black conidia of A. niger were significantly more stable (14.8 plus or minus 2.7 h) to SUV than the lighter pigmented conidia of all the other isolates. The half-life of the other isolates ranged from 1.1 plus or minus 0.2 h (yellow conidia of N. rileyi ) to 2.0 plus or minus 0.6 h (tan-colored conidia of A. niger cinnamomeus ). Also, dry conidia of N. rileyi were more stable to SUV (half-life of 2.4 plus or minus 0.4 h) than wetted conidia (half-life of 1.6 plus or minus 0.2 h). Because black-pigmented conidia were more tolerant to SUV, it may be possible to incorporate, by selection or genetic engineering, this phenotypic character into potential mycopesticides. JF - Environmental Entomology AU - Ignoffo, C M AU - Garcia, C AD - Biol. Control Insects Res. Lab., USDA-ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 913 EP - 917 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - colour KW - Biotechnology and Bioengineering Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - inactivation KW - biological control KW - U.V. radiation KW - pigmentation KW - conidia KW - inoculum KW - Hyphomycetes KW - sunlight KW - entomopathogenic fungi KW - A 01014:Others KW - Z 05182:Pathology KW - W2 32445:Pest control KW - K 03088:Fungi: animal KW - W 30965:Miscellaneous, Reviews KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16302900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+conidial+color+on+inactivation+of+several+entomogenous+fungi+%28Hyphomycetes%29+by+simulated+sunlight.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - inactivation; U.V. radiation; biological control; pigmentation; conidia; inoculum; sunlight; entomopathogenic fungi; Hyphomycetes ER - TY - JOUR T1 - Molecular characterization of 6-phosphofructo-1-kinase purified from Lymantria dispar . AN - 16301528; 2819477 AB - A single protein band with an apparent molecular size of 83 kDa was observed after SDS-polyacrylamide gel electrophoresis and a specific activity of 96 units/mg was obtained for the purified enzyme. A 45% recovery of the total enzyme activity present in the whole body homogenate was obtained. A molecular size of 330 kDa for the native enzyme was determined through gel filtration studies. At low pH (6.4) the gypsy moth larval enzyme dissociated into inactive dimers. The enzyme displayed a sigmoidal fructose-6-phosphate saturation curve and was inhibited by high concentrations of ATP. Addition of fructose-2,6-bisphosphate decreased the cooperativity towards fructose-6-phosphate and relieved inhibition by high concentrations of ATP. AMP, ADP and cyclic-AMP were all activators of the gypsy moth enzyme with AMP being the greatest effector. Citrate, phosphoenolpyruvate and 3-phosphoglycerate were very poor inhibitors. JF - Insect Biochemistry and Molecular Biology AU - Valaitis AU - Kemp, R G AD - USDA Forest Serv., Northeast. Forest Exp. Stn., 359 Main Rd., Delaware, OH 43015, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 481 EP - 489 VL - 22 IS - 5 SN - 0965-1748, 0965-1748 KW - 6-phosphofructo-1-kinase KW - Lepidoptera KW - Lymantria dispar KW - Lymantriidae KW - characterization KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05173:Biochemistry & metabolism (incl. fat body) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=Molecular+characterization+of+6-phosphofructo-1-kinase+purified+from+Lymantria+dispar+.&rft.au=Valaitis%3BKemp%2C+R+G&rft.aulast=Valaitis&rft.aufirst=&rft.date=1992-01-01&rft.volume=22&rft.issue=5&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - characterization ER - TY - JOUR T1 - Structure, organization, and transcription of a cellobiohydrolase gene cluster from Phanerochaete chrysosporium . AN - 16301425; 2815523 AB - Restriction mapping and sequence analysis of cosmid clones revealed a cluster of three cellobiohydrolase genes in Phanerochaete chrysosporium. P. chrysosporium cbh1-1 and cbh1-2 are separated by only 750 bp and are located approximately 14 kb upstream from a cellulase gene previously cloned from P. chrysosporium . Within a well-conserved region, the deduced amino acid sequences of P. chrysosporium cbh-1 and cbh1-2 are, respectively, 80 and 69% homologous to that of the Trichoderma reesei cellobiohydrolase I gene. The conserved cellulose-binding domain typical of microbial cellulases is absent from cbh-1. Transcript levels of the three P. chrysosporium genes varied substantially, depending on culture conditions. cbh-1 and cbh-2 were not induced in the presence of cellulose, nor did they appear to be subject to glucose repression. Therefore, aspects of the chromosomal organization, structure, and transcription of these genes are unlike those of any previously described cellulase genes. JF - Applied and Environmental Microbiology AU - Covert, S F AU - Wymelenberg, A V AU - Cullen, D AD - Microb. and Biochem. Technol., Forest Prod. Lab., Forest Serv., USDA, 1 Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2168 EP - 2175 VL - 58 IS - 7 SN - 0099-2240, 0099-2240 KW - effects on KW - cbh1-1 gene KW - cbh1-2 gene KW - cellobiohydrolase KW - Phanerochaete chrysosporium KW - gene expression KW - genes KW - media (culture) KW - nucleotide sequence KW - restriction endonuclease mapping KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03079:Fungi KW - W 30134:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16301425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Structure%2C+organization%2C+and+transcription+of+a+cellobiohydrolase+gene+cluster+from+Phanerochaete+chrysosporium+.&rft.au=Covert%2C+S+F%3BWymelenberg%2C+A+V%3BCullen%2C+D&rft.aulast=Covert&rft.aufirst=S&rft.date=1992-01-01&rft.volume=58&rft.issue=7&rft.spage=2168&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phanerochaete chrysosporium; media (culture); genes; restriction endonuclease mapping; nucleotide sequence; gene expression ER - TY - JOUR T1 - Field evaluation of predation on Lygus hesperus (Hemiptera: Miridae) using a species- and stage-specific monoclonal antibody. AN - 16299978; 2820465 AB - Whole-body macerates of field-collected insects were examined to identify qualitatively hemipteran predators of Lygus hesperus Knight eggs and adult females using an enzyme-linked immunosorbent assay (ELISA). A L. hesperus species- and egg-specific monoclonal antibody (MAB) was used to detect the presence of L. hesperus egg antigen in these predators. The majority of the polyphagous predators assayed did not have L. hesperus egg antigen in their systems, indicating that they had not preyed on L. hesperus eggs or adult (gravid) females. Additionally, we tested the sensitivity of this MAB and the ELISA assay to L. hesperus eggs of variable ages in the laboratory. Younger eggs were more responsive to the MAB than older eggs. JF - Environmental Entomology AU - Hagler, J R AU - Cohen, A C AU - Bradley-Dunlop, D AU - Enriquez, F J AD - Western Cotton Res. Lab., USDA-ARS, Phoenix, AZ 85040, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 896 EP - 900 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - predation KW - Miridae KW - enzyme-linked immunosorbent assay KW - Lygus hesperus KW - serology KW - Insecta KW - Z 05205:Populations & general ecology KW - D 04001:Methodology - general KW - D 04659:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16299978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Field+evaluation+of+predation+on+Lygus+hesperus+%28Hemiptera%3A+Miridae%29+using+a+species-+and+stage-specific+monoclonal+antibody.&rft.au=Hagler%2C+J+R%3BCohen%2C+A+C%3BBradley-Dunlop%2C+D%3BEnriquez%2C+F+J&rft.aulast=Hagler&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=896&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lygus hesperus; Insecta; Miridae; predation; serology; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Mosquito (Diptera: Culicidae) adulticide drift into wildlife refuges of the Florida Keys. AN - 16297840; 2818521 AB - Drift residues of naled and fenthion, which were applied for mosquito control, were sampled with alpha -cellulose pads in pineland and hammock ecosystems of the Florida Keys in 1989. These included habitats of state and federally protected insect and cactus species on wildlife refuges with no-spray zones. Naled residues were detected up to 750 m downwind in a no-spray zone in pinelands 6 h after application to adjacent target areas. Fenthion residues were detected up to 50 m downwind in hammock 15 min after application to adjacent target areas. In controlled residue degradation experiments, technical naled did not disappear significantly from pads suspended vertically from wires or laid flat on the substrate over a 240-min period. Fenthion did not disappear significantly from pads laid on the substrate but did disappear partly from pads suspended from wires. JF - Environmental Entomology AU - Hennessey, M K AU - Nigg, H N AU - Habeck, D H AD - USDA-ARS, 13601 Old Cutler Rd., Miami, FL 33158, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 714 EP - 721 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - aquatic insects KW - pesticide residues KW - pollution dispersion KW - refuges KW - ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts KW - insecticides KW - Brackish KW - Culicidae KW - Freshwater KW - USA, Florida, Florida Keys KW - nature conservation KW - pest control KW - Diptera KW - Q5 08523:Conservation, wildlife management and recreation KW - Z 05206:Medical & veterinary entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Agricultural+and+Food+Chemistry&rft.atitle=Electrophoretic+analysis+of+cationic+proteins+extracted+from+aflatoxin-resistant%2Fsusceptible+varieties+of+corn&rft.au=Neucere%2C+J+N&rft.aulast=Neucere&rft.aufirst=J&rft.date=1992-01-01&rft.volume=40&rft.issue=8&rft.spage=1422&rft.isbn=&rft.btitle=&rft.title=Journal+of+Agricultural+and+Food+Chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - nature conservation; insecticides; pest control; pollution dispersion; refuges; aquatic insects; pesticide residues; Culicidae; Diptera; USA, Florida, Florida Keys; Brackish; Freshwater ER - TY - JOUR T1 - Biology and host specificity of Oncochila simplex (Hem.: Tingidae), a candidate for the biological control of leafy spurge Euphorbia esula L. "complex". AN - 16297520; 2820041 AB - In no-choice tests, neonate nymphs of O. simplex developed on plants of the genus Euphorbia (subgenus Esula ) and on lettuce and corn. In field trials, this lacebug completed a generation on Euphorbia lathyris L., but not on lettuce and corn. The development of neonate nymphs under forced conditions on lettuce and corn does not necessary indicate that these plants are suitable hosts in nature. Our hypothesis of the restricted host range of O. simplex is also supported by the literature, in which there are no reports of this species from lettuce, corn or other plants of agricultural importance. We conclude that O. simplex should be introduced as a biological control agent against leafy spurge in the United States. JF - Entomophaga AU - Pecora, P AU - Rizza, A AU - Stazi, M AD - European Biol. Control Lab., USDA-ARS, BP 4168, Agropolis, 34092 Montpellier, France Y1 - 1992 PY - 1992 DA - 1992 SP - 79 EP - 89 VL - 37 IS - 1 SN - 0013-8959, 0013-8959 KW - Oncochila simplex KW - Heteroptera KW - Ecology Abstracts; Entomology Abstracts KW - biological control KW - host specificity KW - Euphorbia esula KW - Tingidae KW - biology KW - Z 05205:Populations & general ecology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Entomophaga&rft.atitle=Biology+and+host+specificity+of+Oncochila+simplex+%28Hem.%3A+Tingidae%29%2C+a+candidate+for+the+biological+control+of+leafy+spurge+Euphorbia+esula+L.+%22complex%22.&rft.au=Pecora%2C+P%3BRizza%2C+A%3BStazi%2C+M&rft.aulast=Pecora&rft.aufirst=P&rft.date=1992-01-01&rft.volume=37&rft.issue=1&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Entomophaga&rft.issn=00138959&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Euphorbia esula; Tingidae; biological control; biology; host specificity ER - TY - JOUR T1 - Effect of temperature on life history characteristics of Anisopteromalus calandrae (Hymenoptera: Pteromalidae) parasitizing maize weevil larvae in corn kernels. AN - 16296138; 2820488 AB - The second generation of Anisopteromalus calandrae (Howard) collected from commercial stored corn in South Carolina was reared at constant temperatures of 20, 25, 30, and 35 degree C at 63% RH and a 12:12 (L:D) photoperiod. Hosts were medium to large larvae of Sitophilus zeamais Motschulsky reared on corn (21-23 d old at 25 degree C, 63% RH). Daily production of viable progeny, sex ratio, adult female survivorship, and development time were measured to calculate net reproductive rate (R sub(o)), generation time (T), intrinsic rate of increase (r sub(m)), and female adult life expectancy. Female longevity was greatest at 20 degree C (14.5 d median) and shortest at 30 and 35 degree C (6 d). Median female development time ranged from 44 d at 20 degree C to 10 d at 35 degree C. Mean number of progeny produced per female over her lifetime increased from 10.4 at 20 degree C to 42.6 at 35 degree C. JF - Environmental Entomology AU - Smith, L AD - Stored-Prod. Insects Res. and Dev. Lab., USDA-ARS, P.O. Box 22909, Svannah, GA 31403, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 877 EP - 887 VL - 21 IS - 4 SN - 0046-225X, 0046-225X KW - temperature KW - Ecology Abstracts; Entomology Abstracts KW - biological control KW - development KW - Anisopteromalus calandrae KW - parasitoids KW - Hymenoptera KW - Pteromalidae KW - D 04659:Insects KW - Z 05201:Parasitism: entomophagous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16296138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effect+of+temperature+on+life+history+characteristics+of+Anisopteromalus+calandrae+%28Hymenoptera%3A+Pteromalidae%29+parasitizing+maize+weevil+larvae+in+corn+kernels.&rft.au=Smith%2C+L&rft.aulast=Smith&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=4&rft.spage=877&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anisopteromalus calandrae; Pteromalidae; Hymenoptera; parasitoids; biological control; development ER - TY - JOUR T1 - Genetic strategies for reforestation in the face of global climate change. AN - 16295720; 2819260 AB - If global warming materializes as projected, natural or artificial regeneration of forests with local seed sources will become increasingly difficult. However, global warming is far from a certainty and predictions of its magnitude and timing vary at least twofold. In the face of such uncertainty, reforestation strategies should emphasize conservation, diversification, and broader deployment of species, seed sources, and families. Planting programs may have to deploy non-local seed sources, imported from further south or from lower elevations, which necessitates a system for conserving native gene pools in seed banks or clone banks. Planting a diverse array of species or seed sources is a hedge against the uncertainty inherent in current projections of warming. Most tree improvement programs already stress genetic diversity and deployment of multi-progeny mixes, but may better prepare for climate change by testing selections in an even wider set of environments than is now the case. JF - Forest Ecology and Management AU - Ledig, F T AU - Kitzmiller, J H AD - Inst. Forest Genet., Pac. Southwest Res. Stn., USDA Forest Serv., P.O. Box 245, Berkeley, CA 94701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 153 EP - 169 VL - 50 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Genetics Abstracts; Ecology Abstracts KW - strategy KW - environmental restoration KW - climatic changes KW - genetic engineering KW - reforestation KW - ecological genetics KW - global warming KW - G 07270:Ecological genetics KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16295720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Genetic+strategies+for+reforestation+in+the+face+of+global+climate+change.&rft.au=Ledig%2C+F+T%3BKitzmiller%2C+J+H&rft.aulast=Ledig&rft.aufirst=F&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - environmental restoration; reforestation; genetic engineering; strategy; global warming; climatic changes; ecological genetics ER - TY - JOUR T1 - Tracing black cutworm and armyworm (Lepidoptera: Noctuidae) northward migration using Pithecellobium and Calliandra pollen. AN - 16294557; 2814242 AB - Identifying the pollen attached to black cutworm, Agrotis ipsilon (Hufnagel), and armyworm, Pseudaletia unipuncta (Haworth), moths provided a powerful tool for recognizing food plants used by these noctuids before initiation of long-range movement. Pollen was found primarily on the proboscis and in decreasing frequency on the eyes, legs, and antennae. Fourteen moths collected in Iowa and Missouri were marked with the exotic pollens Pithecellobium spp. or Calliandra spp, or both. These plants are indigenous to southern climes, and the closes site of origin to the capture points is in southern Texas. From the closest plant location in Texas, these moths traveled 1,300 km to central Missouri, 1,450 km to northern Missouri, and 1,600 km to central Iowa. Moths captured in March probably originated greater than or equal to 600 km farther to the south than those captured in late April and May. JF - Environmental Entomology AU - Hendrix, WH III AU - Showers, W B AD - Corn Insect Res. Unit, USDA-ARS, Ankeny, IA 50021, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1092 EP - 1096 VL - 21 IS - 5 SN - 0046-225X, 0046-225X KW - Calliandra KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - Pithecellobium KW - Agrotis ipsilon KW - Lepidoptera KW - pollen KW - food plants KW - Noctuidae KW - migration KW - North America KW - attachment KW - tracking KW - Pseudaletia unipuncta KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Y 25653:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16294557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Tracing+black+cutworm+and+armyworm+%28Lepidoptera%3A+Noctuidae%29+northward+migration+using+Pithecellobium+and+Calliandra+pollen.&rft.au=Hendrix%2C+WH+III%3BShowers%2C+W+B&rft.aulast=Hendrix&rft.aufirst=WH&rft.date=1992-01-01&rft.volume=21&rft.issue=5&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Agrotis ipsilon; Pseudaletia unipuncta; Pithecellobium; Noctuidae; Lepidoptera; North America; tracking; migration; attachment; pollen; food plants ER - TY - JOUR T1 - Recognition of transition metal ions by peptides. Identification of specific metal-binding peptides in proteolytic digest maps by UV laser desorption time-of-flight mass spectrometry. AN - 16291940; 2814679 AB - Metal-binding peptides in proteolytic digest maps have been identified by matrix-assisted UV laser desorption time-of-flight mass spectrometry (LDTOF-MS). The plasma and milk metal transport protein chosen to demonstrate this process, histidine-rich glycoprotein, was purified and then digested with trypsin; the cleavage products were analyzed by LDTOF-MS with dihydroxybenzoic acid as the matrix. The selective interaction of specific peptides with one or more Cu atoms was observed when Cu(II) ions were added to the digest mixture. JF - FEBS Letters AU - Hutchens, T W AU - Nelson, R W AU - Yip, Tai-Tung AD - USDA/ARS Children's Nutr. Cent., Baylor Coll. Med., Dep. Pediatr., 1100 Bates, Houston, TX 77030, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 99 EP - 102 VL - 296 IS - 1 SN - 0014-5793, 0014-5793 KW - copper KW - histidine-rich glycoprotein KW - man KW - mechanisms KW - plasma KW - regulation KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16291940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEBS+Letters&rft.atitle=Recognition+of+transition+metal+ions+by+peptides.+Identification+of+specific+metal-binding+peptides+in+proteolytic+digest+maps+by+UV+laser+desorption+time-of-flight+mass+spectrometry.&rft.au=Hutchens%2C+T+W%3BNelson%2C+R+W%3BYip%2C+Tai-Tung&rft.aulast=Hutchens&rft.aufirst=T&rft.date=1992-01-01&rft.volume=296&rft.issue=1&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=FEBS+Letters&rft.issn=00145793&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Differences in Monterey pine pest populations in urban and natural forests. AN - 16278433; 2803504 AB - Monterey pines (Pinus radiata D. Don) planted along streets (i.e. street trees) within Carmel, California and its immediate vicinity, and naturally grown Monterey pine within adjacent native stands, were sampled with regard to intensity of visual stress characteristics, western dwarf mistletoe (Arceuthobium campylopodum f. typicum (Engelm.) Gill), and western gall rust (Peridermium harknessii J.P. Moore) infection, and frequency of sequoia pitch moth (Synanthedon sequoiae Hy. Edw.) and red turpentine beetle (Dendroctonus valens LeConte) attacks. The street trees were stratified into four geographic zones: one highly urban zone, two urban zones, and one suburban zone. Dwarf mistletoe infections generally were more common in the forest stand than on street trees in the highly urban and urban zones for trees less than 50 cm dbh and were positively correlated with stand density. Pitch moth attacks were more common in all street trees zones than the natural forest, and were positively correlated with amount of pruning and wounding, and negatively correlated with amount of crown closure and stress. JF - Forest Ecology and Management AU - Nowak, D J AU - McBride, J R AD - USDA Forest Serv., 5801 N. Pulaski Rd., Build. C, Chicago, IL, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 133 EP - 144 VL - 50 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Synanthedon sequoiae KW - Peridermium harknessii KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - Scolytidae KW - Sesiidae KW - USA, California, Carmel KW - Lepidoptera KW - pest status KW - rust KW - urban environments KW - Coleoptera KW - Pinus radiata KW - natural vegetation KW - Dendroctonus valens KW - K 03089:Fungi: plant KW - Z 05203:Relations to plants KW - D 04659:Insects KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16278433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Differences+in+Monterey+pine+pest+populations+in+urban+and+natural+forests.&rft.au=Nowak%2C+D+J%3BMcBride%2C+J+R&rft.aulast=Nowak&rft.aufirst=D&rft.date=1992-01-01&rft.volume=50&rft.issue=1-2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sesiidae; Scolytidae; Lepidoptera; Pinus radiata; Dendroctonus valens; Coleoptera; USA, California, Carmel; pest status; natural vegetation; urban environments; rust ER - TY - JOUR T1 - Field density estimates of Heliothis virescens (Lepidoptera: Noctuidae) from catches in sex pheromone-baited traps. AN - 16277907; 2803016 AB - The number of male tobacco budworm, Heliothis virescens (Fabricius), trapped on a daily basis in pheromone traps in individual cotton fields was compared to male and female adult densities measured by nocturnal field sampling. The decline of trap efficiency with increasing female density was demonstrated. A simple relationship for estimating H. virescens male density from the numbers trapped was derived as P male = (E sub(2)/13) super(2), where P male is density and E sub(2) is the two-day exponential average of number trapped. The standard error for the regression translates to an accuracy ratio of 2:1. The results compare favourably with previous research using mark-release-recapture methodology. Application of the formula is discussed. JF - Bulletin of Entomological Research AU - Witz, JA AU - Lopez, JD Jr AU - Latheef, MA AD - USDA-ARS, Crop Insect Pests Manage. Res. Unit, Rt. 5, Box 808, College Station, TX 77845, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 281 EP - 286 VL - 82 IS - 2 SN - 0007-4853, 0007-4853 KW - Ecology Abstracts; Entomology Abstracts KW - population density KW - methodology KW - Lepidoptera KW - pheromone traps KW - Noctuidae KW - Heliothis virescens KW - Z 05205:Populations & general ecology KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04002:Surveying and remote sensing KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Entomological+Research&rft.atitle=Field+density+estimates+of+Heliothis+virescens+%28Lepidoptera%3A+Noctuidae%29+from+catches+in+sex+pheromone-baited+traps.&rft.au=Witz%2C+JA%3BLopez%2C+JD+Jr%3BLatheef%2C+MA&rft.aulast=Witz&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=82&rft.issue=2&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Entomological+Research&rft.issn=00074853&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Heliothis virescens; Noctuidae; Lepidoptera; pheromone traps; population density; methodology ER - TY - JOUR T1 - Intra-colonial foraging specialism by honey bees (Apis mellifera ) (Hymenoptera: Apidae). AN - 16277803; 2802907 AB - Colonies of honey bees with two identifiable subfamilies were established. Returning foragers were captured and killed at two different sampling times. The mean volume and per cent soluble solids of crop contents were determined for each subfamily, as was the mean weight of the pollen pellets. No significant differences in nectar volume or concentration were detected between subfamilies within colonies. However, in a few colonies, significant subfamily by sampling-time interactions were present, suggesting that in these colonies subfamilies differed in their nectar and pollen collecting behavior at different times of day. The plant genera worked by pollen foragers were also determined. In four of six colonies, bees of different subfamilies were found to be majoring on different plant species. Implications of this intra-colonial variance in foraging behavior for colony fitness are discussed. JF - Behavioral Ecology and Sociobiology AU - Oldroyd, B P AU - Rinderer, TE AU - Buco, S M AD - USDA-ARS, Honey-Bee Breed., Genet. and Physiol. Res. Lab., 1157 Ben Hur Rd., Baton Rouge, LA 70820, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 291 EP - 295 VL - 30 IS - 5 SN - 0340-5443, 0340-5443 KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - foraging behavior KW - Apis mellifera KW - food selection KW - genetic relationship KW - Hymenoptera KW - Apidae KW - division of labor KW - Z 05208:Social entomology KW - Y 25493:Insects KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioral+Ecology+and+Sociobiology&rft.atitle=Intra-colonial+foraging+specialism+by+honey+bees+%28Apis+mellifera+%29+%28Hymenoptera%3A+Apidae%29.&rft.au=Oldroyd%2C+B+P%3BRinderer%2C+TE%3BBuco%2C+S+M&rft.aulast=Oldroyd&rft.aufirst=B&rft.date=1992-01-01&rft.volume=30&rft.issue=5&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Behavioral+Ecology+and+Sociobiology&rft.issn=03405443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Hymenoptera; Apidae; foraging behavior; food selection; genetic relationship; division of labor ER - TY - JOUR T1 - Effects of interactions among genotypically diverse nestmates on task specialization by foraging honey bees (Apis mellifera ). AN - 16277101; 2803130 AB - We present evidence supporting the hypothesis that an individual's pattern of task specialization is affected not only by her own genotype, but, indirectly, by the genotypes of her nestmates. Workers from two strains of honey bees, one selected for high pollen hoarding, the other for low pollen hoarding, were observed in colonies of their respective parent strains and in colonies of the other strain. Worker genotype and host-colony type affected foraging activity. Workers from the high strain fostered in low-strain colonies returned with pollen on 75.6% of total foraging trips, while workers from the high strain fostered in high-strain colonies returned with pollen on 53.5% of total trips. Workers from the low strain fostered in low-strain colonies returned with pollen on 34.8% of total foraging trips while workers from the low strain fostered in high-strain colonies returned with pollen on 2.6% of total trips. Similar results were obtained in a second experiment. We suggest that workers influence the behavior of their nestmates indirectly through their effects on the shared colony environment. JF - Behavioral Ecology and Sociobiology AU - Calderone, N W AU - Page, RE Jr AD - Bee Res. Lab., USDA-ARS, Build. 476, BARC-E., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 219 EP - 226 VL - 30 IS - 3-4 SN - 0340-5443, 0340-5443 KW - Animal Behavior Abstracts; Entomology Abstracts; Ecology Abstracts KW - foraging behavior KW - Apis mellifera KW - behavioral genetics KW - intraspecific relationships KW - Hymenoptera KW - Apidae KW - division of labor KW - Z 05208:Social entomology KW - Y 25453:Insects KW - D 04659:Insects KW - Y 25513:Insects KW - Z 05217:Behavioral genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16277101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Behavioral+Ecology+and+Sociobiology&rft.atitle=Effects+of+interactions+among+genotypically+diverse+nestmates+on+task+specialization+by+foraging+honey+bees+%28Apis+mellifera+%29.&rft.au=Calderone%2C+N+W%3BPage%2C+RE+Jr&rft.aulast=Calderone&rft.aufirst=N&rft.date=1992-01-01&rft.volume=30&rft.issue=3-4&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Behavioral+Ecology+and+Sociobiology&rft.issn=03405443&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; behavioral genetics; division of labor; intraspecific relationships; foraging behavior ER - TY - JOUR T1 - Development of the phytophagous arthropod community on apple as affected by orchard management. AN - 16275284; 2802134 AB - The phytophagous arthropod community in three apple orchards was sampled for the first 5 yr (1984-1988) after planting. One orchard was unmanaged, one was partially managed with pruning and weed control, and one was under full commercial management. For the first 2 yr there were no significant differences in arthropod diversity among the three orchards. In the third and subsequent years, diversity, as measured by species richness and Williams' index, was significantly lower in the commercially managed orchard than in the two reduced management orchards. In the fifth year, the commercially managed orchard had the most uneven distribution of species abundances and the partially managed orchard the most even. Within-year evenness values were more variable in the commercially managed orchard than in either of the reduced management orchards. JF - Environmental Entomology AU - Brown, M W AU - Welker, W V AD - Appalachian Fruit Res. Stn., USDA-ARS, 45 Wiltshire Rd., Kearneysville, WV 25430, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 485 EP - 492 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - agricultural practices KW - orchards KW - community development KW - Malus domestica KW - Insecta KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16275284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Development+of+the+phytophagous+arthropod+community+on+apple+as+affected+by+orchard+management.&rft.au=Brown%2C+M+W%3BWelker%2C+W+V&rft.aulast=Brown&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Insecta; Malus domestica; orchards; agricultural practices; community development ER - TY - JOUR T1 - Rangeland grasshopper (Orthoptera: Acrididae) community structure: A working hypothesis. AN - 16274560; 2802160 AB - Interspecific associations of rangeland grasshoppers studied in Gallatin Valley, Mont., during 1988-1990 when regional densities were low, showed a great deal of spatial variation. Although > 40 rangeland grasshopper species were collected valley-wide throughout this study, mean species richness at the habitat type level ranged from approximately equals 10-17; results suggest that species replacement occurred over the gradient of habitat types sampled. Based on the results of this and previous research, it appears that rangeland grasshopper communities consist of facultative assemblages of species. Because of the differences found in species composition at the habitat type level, the generalization of detailed experimental studies, beyond the habitat type level, must be done with caution. Lastly, it is clear that to understand rangeland grasshopper communities in general, large-scale observational studies designed to depict pattern must be conducted together with small-scale studies designed to elucidate process. JF - Environmental Entomology AU - Kemp, W P AD - Rangeland Insect Lab., USDA-ARS, Bozeman, MT 59717, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 461 EP - 470 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - Acrididae KW - Orthoptera KW - habitat utilization KW - community structure KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16274560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Rangeland+grasshopper+%28Orthoptera%3A+Acrididae%29+community+structure%3A+A+working+hypothesis.&rft.au=Kemp%2C+W+P&rft.aulast=Kemp&rft.aufirst=W&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acrididae; Orthoptera; USA, Montana; rangelands; community structure; habitat utilization ER - TY - JOUR T1 - Insect fauna of the heads and stems of native sunflowers (Asterales: Asteraceae) in eastern North Dakota. AN - 16274309; 2801668 AB - Insect fauna from the heads (capitula) and stems of six native sunflower species in eastern North Dakota and western Minnesota are reported. Eight insect species in six families of Coleoptera, Diptera, and Lepidoptera were recovered from the heads of six species of Helianthus . Heads of Helianthus annuus L. contained the greatest diversity of insect species. Insect species collected were also commonly found as pests of cultivated sunflower heads. The sunflower stem weevil, Cylindrocopturus adspersus (LeConte), was the only major insect pest of cultivated sunflower that was recovered from sunflower stems. It was most abundant in H. annuus . A single species of parasitoid, Nealiolus curculionis (Fitch), was reared from sunflower stem weevil larvae. Results suggest that some species of Helianthus have high potential as sources of insect resistance for incorporation into commercial sunflower. JF - Environmental Entomology AU - Charlet, L D AU - Brewer, G J AU - Beregovoy, V H AD - Noth. Crop Sci. Lab., USDA-ARS, State Univ. Stn., Fargo, ND 58105, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 493 EP - 500 VL - 21 IS - 3 SN - 0046-225X, 0046-225X KW - Ecology Abstracts; Entomology Abstracts KW - check lists KW - entomofauna KW - pests KW - USA, North Dakota KW - Insecta KW - Helianthus KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16274309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Insect+fauna+of+the+heads+and+stems+of+native+sunflowers+%28Asterales%3A+Asteraceae%29+in+eastern+North+Dakota.&rft.au=Charlet%2C+L+D%3BBrewer%2C+G+J%3BBeregovoy%2C+V+H&rft.aulast=Charlet&rft.aufirst=L&rft.date=1992-01-01&rft.volume=21&rft.issue=3&rft.spage=493&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Helianthus; Insecta; USA, North Dakota; pests; check lists; entomofauna ER - TY - JOUR T1 - Breeding bird communities in regenerating and mature broadleaf forests in the USA Lake States. AN - 16273900; 2805513 AB - When Lake States aspen tree canopy is removed by clearcut harvest, bird species turnover is almost complete. Bird species richness and total populations were highest in mature stands with well-developed understories and in regenerating stands about 4 years after clearcutting. However, species composition in regenerating stands was different to that in mature stands. Most bird species that are of regional concern were restricted to more mature stands. The lack of direct relationship between species richness and increasing stand age was related to compensatory trends in species populations among five foraging groups of birds. JF - Forest Ecology and Management AU - Probst, J R AU - Rakstad, D S AU - Rugg, D J AD - North Cent. Forest Exp. Stn., USDA Forest Serv., P.O. Box 898, Rhinelander, WI 54501, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 43 EP - 60 VL - 49 IS - 1-2 SN - 0378-1127, 0378-1127 KW - USA, Lake States KW - Ecology Abstracts KW - forests KW - Aves KW - breeding KW - regeneration KW - species richness KW - species-area relation KW - community structure KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Breeding+bird+communities+in+regenerating+and+mature+broadleaf+forests+in+the+USA+Lake+States.&rft.au=Probst%2C+J+R%3BRakstad%2C+D+S%3BRugg%2C+D+J&rft.aulast=Probst&rft.aufirst=J&rft.date=1992-01-01&rft.volume=4&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; regeneration; forests; species-area relation; breeding; community structure; species richness ER - TY - JOUR T1 - Nucleotide sequence of the second exon of a BoLA-DQB gene. AN - 16273294; 2798400 AB - The accumulation of nucleotide sequence information on the bovine mHC class II genes is important for defining the relations between genetic polymorphisms and disease. The outermost domain ( alpha 1 or beta 1) coded for by the second exon is of particular interest because it is believed this region of the protein forms the antigen-binding site. In this study, the nucleotide sequence of the beta 1 exon and 40 bp of flanking intron of a BoLa-DQB clone, Q2, has been determined. The nucleotide sequence is compared to the corresponding sequences of two previously described bovine DQB clones, Y1 and Q1. JF - Animal Genetics AU - Stone, R T AU - Muggli-Cockett, N E AD - USDA-ARS, US Meat Anim. Res. Cent., P.O. Box 166, Clay Cent., NE 68933-0166, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 273 EP - 274 VL - 23 IS - 3 SN - 0268-9146, 0268-9146 KW - DQB loci KW - Q2 locus KW - amino acid sequence KW - cDNA KW - cattle KW - genes KW - histocompatibility locus BoLA KW - nucleotide sequence KW - predictions KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids; Genetics Abstracts; Immunology Abstracts KW - N 14640:Structure & sequence KW - F 06824:Animal KW - G 07414:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Animal+Genetics&rft.atitle=Nucleotide+sequence+of+the+second+exon+of+a+BoLA-DQB+gene.&rft.au=Stone%2C+R+T%3BMuggli-Cockett%2C+N+E&rft.aulast=Stone&rft.aufirst=R&rft.date=1992-01-01&rft.volume=23&rft.issue=3&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Animal+Genetics&rft.issn=02689146&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - nucleotide sequence; cDNA; amino acid sequence; genes ER - TY - JOUR T1 - Fowl cholera epornitic: Antigenic characterization and virulence of selected Pasteurella multocida isolates. AN - 16273273; 2788640 AB - An epornitic of fowl cholera involving turkey flocks of several farms within a 15-mile radius in Utah was studied. Pasteurella multocida strains isolated from birds in affected flocks were antigenically characterized as A:1, A:3, and B:4, based on capsular sero-grouping somatic serotyping results. Experimental exposure of poults with each of two strains representing the rarely reported capsular group B indicated that both were virulent. JF - Avian Diseases AU - Rhoades, K R AU - Rimler, R B AU - Bagley, R A AD - USDA, Agric. Res. Serv., Natl. Anim. Dis. Cent., Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 84 EP - 87 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - turkeys KW - Microbiology Abstracts B: Bacteriology KW - cholera KW - serotyping KW - virulence KW - Pasteurella multocida KW - antigenicity KW - J 02832:Antigenic properties and virulence UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=High-affinity+iron+uptake+systems+present+in+Erwinia+carotovora+subsp.+carotovora+include+the+hydroxamate+siderophore+aerobactin.&rft.au=Ishimaru%2C+CA%3BLoper%2C+JE&rft.aulast=Ishimaru&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=174&rft.issue=9&rft.spage=2993&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pasteurella multocida; serotyping; cholera; antigenicity; virulence ER - TY - JOUR T1 - alpha -Amylases from three species of stored grain Coleoptera and their inhibition by wheat and corn proteinaceous inhibitors. AN - 16272200; 2791588 AB - Two alpha -amylase isozymes were isolated from adults of both the rice weevil, Sitophilus oryzae , and the red flour beetle, Tribolium castaneum , and a single alpha -amylase from adults of the yellow mealworm, Tenebrio molitor . All of the purified enzymes had similar amino acid compositions as well as physical and chemical properties. The apparent molecular masses ranged from 53 to 58 kDa. Circular dichroism measurements revealed approx. 33% alpha -helical content. V sub(max) and K sub(m) values ranged from 1.33 to 5.98 mM min super(-1) mg super(-1) and 0.76 to 5.57 mg ml super(-1), respectively, using starch as the substrate. An alpha -amylase inhibitor from wheat (WRP-25) inhibited all five enzymes, whereas an inhibitor from corn inhibited only enzymes from the red flour beetle and yellow mealworm. JF - Insect Biochemistry and Molecular Biology AU - Chen, Ming-Shun AU - Feng, Guohua AU - Zen, K C AU - Richardson, M AU - Valdes-Rodriguez, S AU - Reeck, G R AU - Kramer, K J AD - Grain Marketing Res. Lab., Agric. Res. Serv., USDA, 1515 College Ave., Manhattan, KS 66502, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 261 EP - 268 VL - 22 IS - 3 SN - 0965-1748, 0965-1748 KW - Coleoptera KW - Curculionidae KW - Tenebrionidae KW - Triticum aestivum KW - Zea mays KW - alpha -amylase KW - enzymatic activity KW - inhibition KW - proteins KW - stored products KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Entomology Abstracts KW - Z 05203:Relations to plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16272200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Insect+Biochemistry+and+Molecular+Biology&rft.atitle=alpha+-Amylases+from+three+species+of+stored+grain+Coleoptera+and+their+inhibition+by+wheat+and+corn+proteinaceous+inhibitors.&rft.au=Chen%2C+Ming-Shun%3BFeng%2C+Guohua%3BZen%2C+K+C%3BRichardson%2C+M%3BValdes-Rodriguez%2C+S%3BReeck%2C+G+R%3BKramer%2C+K+J&rft.aulast=Chen&rft.aufirst=Ming-Shun&rft.date=1992-01-01&rft.volume=22&rft.issue=3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Insect+Biochemistry+and+Molecular+Biology&rft.issn=09651748&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - stored products; inhibition; enzymatic activity; proteins ER - TY - JOUR T1 - Use of pilocarpine-induced alimentary secretions to measure intestinal shedding of Salmonella enteritidis in chickens. AN - 16271508; 2788718 AB - A technique has been developed that uses the parasympathomimetic drug pilocarpine to induce alimentary secretions in chickens for measuring local immune responses to Salmonella enteritidis strain SE6. A study was conducted to determine if these secretions could also be used to detect intestinal SE6 shedding. In separate small experiments, alimentary secretions induced by pilocarpine alone also had significantly more SE6 isolations than did cloacal swabs on two of three sampling times examined. Direct culture of feces resulted in numerically but not significantly greater SE6 isolations than did cloacal swabs on two of three sampling times. The results indicate that induced intestinal material is a better sample source than cloacal swabs for detecting S. enteritidis intestinal infections in chickens and could have many applications in intestinal pathogenesis research. JF - Avian Diseases AU - Holt, P S AU - Porter, RE Jr AD - USDA, Agric. Res. Serv., Southeast Poultry Res. Lab., 934 College Station Rd., Athens, GA 30605, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 54 EP - 58 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - chickens KW - pilocarpine KW - Microbiology Abstracts B: Bacteriology KW - gastrointestinal tract KW - secretions KW - infection KW - immune response KW - contamination KW - Salmonella enteritidis KW - J 02831:Techniques and reagents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16271508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Use+of+pilocarpine-induced+alimentary+secretions+to+measure+intestinal+shedding+of+Salmonella+enteritidis+in+chickens.&rft.au=Holt%2C+P+S%3BPorter%2C+RE+Jr&rft.aulast=Holt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=36&rft.issue=1&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella enteritidis; infection; immune response; secretions; gastrointestinal tract; contamination ER - TY - JOUR T1 - Effects of selected secondary metabolites of Fusarium moniliforme on unscheduled synthesis of DNA by rat primary hepatocytes. AN - 16268855; 2796254 AB - The Fusarium moniliforme mycotoxins--fusarin C, fumonisin B sub(1), moniliformin and bikaverin--ware evaluated for genotoxicity by their ability to induce unscheduled DNA synthesis (UDS) in primary rat hepatocytes. Isolated hepatocytes were exposed to several concentrations of moniliformin (5.0-500 mu M), bikaverin (1.0-550 mu M), fumonisin B sub(1) (0.5-250 mu M), or fusarin C (1.0-100 mu M). Aflatoxin B sub(1), a known inducer of UDS, was included as a positive control. UDS was determined by autoradiography of cells after their exposure to ( super(3)H)thymidine. The highest doses of fusarin C and bikaverin caused cell death, but no cytotoxicity was observed in cells exposed to moniliformin or fumonisin B sub(1). Fumonisin B sub(1), moniliformin and bikaverin were not genotoxic in the UDS assay. The results of the UDS assay with fusarin C were inconclusive since a marginal effect on UDS was obtained. JF - Food and Chemical Toxicology AU - Norred, W P AU - Plattner, R D AU - Vesonder, R F AU - Bacon, C W AU - Voss, KA AD - Toxicol. and Mycotoxin Res. Unit, Richard B. Russell Agric. Res. Cent., USDA/ARS, P.O. Box 5677, Athens, GA 30601, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 233 EP - 237 VL - 30 IS - 3 SN - 0278-6915, 0278-6915 KW - unscheduled KW - rats KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Fusarium moniliforme KW - DNA biosynthesis KW - hepatocytes KW - mycotoxins KW - K 03082:Mycotoxins KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16268855?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+and+Chemical+Toxicology&rft.atitle=Effects+of+selected+secondary+metabolites+of+Fusarium+moniliforme+on+unscheduled+synthesis+of+DNA+by+rat+primary+hepatocytes.&rft.au=Norred%2C+W+P%3BPlattner%2C+R+D%3BVesonder%2C+R+F%3BBacon%2C+C+W%3BVoss%2C+KA&rft.aulast=Norred&rft.aufirst=W&rft.date=1992-01-01&rft.volume=30&rft.issue=3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Food+and+Chemical+Toxicology&rft.issn=02786915&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium moniliforme; mycotoxins; DNA biosynthesis; hepatocytes ER - TY - JOUR T1 - Roles of manganese and organic acid chelators in regulating lignin degradation and biosynthesis of peroxidases by Phanerochaete chrysosporium . AN - 16267519; 2803936 AB - We studied the effect of manganese and various organic chelators on the distribution, depolymerization, and mineralization of synthetic super(14)C-labeled lignins (DHP) in cultures of Phanerochaete chrysosporium . In the presence of high levels of manganese (Mn(II) or Mn(III)), along with a suitable chelator, lignin peroxidase (LiP) production was repressed and manganese peroxidase (MnP) production was stimulated. Even though partial lignin depolymerization was observed under these conditions, further depolymerization of the polymer to smaller compounds was more efficient when low levels of manganese were present. LiPs were prevalent under these latter conditions, but MnPs were also present. Mineralization was more efficient with low manganese. JF - Applied and Environmental Microbiology AU - Perez, J AU - Jeffries, T W AD - Inst. Microb. and Biochem. Technol., For. Prod. Lab., For. Serv., USDA, One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2402 EP - 2409 VL - 58 IS - 8 SN - 0099-2240, 0099-2240 KW - lignin KW - lignin peroxidase KW - manganese peroxidase KW - manganese KW - organic acids KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - chelating agents KW - depolymerization KW - Phanerochaete chrysosporium KW - biodegradation KW - regulation KW - biosynthesis KW - A 01006:Enzymes & cofactors KW - K 03020:Fungi KW - A 01016:Microbial degradation KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16267519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Roles+of+manganese+and+organic+acid+chelators+in+regulating+lignin+degradation+and+biosynthesis+of+peroxidases+by+Phanerochaete+chrysosporium+.&rft.au=Perez%2C+J%3BJeffries%2C+T+W&rft.aulast=Perez&rft.aufirst=J&rft.date=1992-01-01&rft.volume=58&rft.issue=8&rft.spage=2402&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phanerochaete chrysosporium; biodegradation; depolymerization; biosynthesis; regulation; chelating agents ER - TY - JOUR T1 - Tropical forest biomass estimation from truncated stand tables. AN - 16262579; 2796884 AB - Total aboveground forest biomass may be estimated through a variety of techniques based on commercial inventory stand and stock tables. Stand and stock tables from tropical countries commonly omit trees below a certain commercial limit, often greater than or equal to 35 cm. Biomass estimates made from such tables will fail to include from 25-45% of the total stand biomass. Using stand tables generated for large forested areas, we describe several methods of estimating the numbers of stems in one or two missing small-diameter classes (truncated stand tables) based on the numbers of stems in the larger size classes. We show that an exponential model reasonably approximates diameter distributions among most diameter classes in various types of tropical moist forest. The most accurate method of estimating the number of stems smaller (missing) diameter classes used the ratio of the numbers of stems in the two smallest diameter classes. The error of estimation of total stand biomass using this approach (10-12%) was always less than the error incurred by omitting the missing classes (25-45%). JF - Forest Ecology and Management AU - Gillespie, AJR AU - Brown, S AU - Lugo, A E AD - Inst. Trop. For., USDA Forest Serv., South. Forest Exp. Stn., Call Box 25000, Rio Piedras, Puerto Rico 00928-2500 Y1 - 1992 PY - 1992 DA - 1992 SP - 69 EP - 87 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - tropical environment KW - errors KW - biomass KW - forest practices KW - stand structure KW - methodology KW - D 04126:Tropical forests KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16262579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Nicole+Bourque%2C+L.&rft.aulast=Nicole+Bourque&rft.aufirst=L.&rft.date=1993-01-01&rft.volume=267&rft.issue=17&rft.spage=12068&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - forest practices; biomass; tropical environment; stand structure; errors; methodology ER - TY - JOUR T1 - A soybean vacuolar protein (P34) related to thiol proteases is synthesized as a glycoprotein precursor during seed maturation. AN - 16260548; 2785289 AB - We have examined the synthesis, posttranslational processing, and localization of soybean P34, a member of the papain superfamily. P34 has been identified as a constituent of oil storage organelles or oil bodies isolated from seed lysates and has been assumed to be one of the oil body proteins. Analysis of RNA indicates that the P34 genes are expressed only during seed maturation and that the P34 mRNA is related to other thiol protease mRNAs detectable in other organs and plants. JF - Journal of Biological Chemistry AU - Kalinski, A AU - Melroy, D L AU - Dwivedi, R S AU - Herman, E M AD - Plant Mol. Biol. Lab., USDA, Agric. Res. Serv., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 12068 EP - 12076 VL - 267 IS - 17 SN - 0021-9258, 0021-9258 KW - Glycine max KW - P34 gene KW - P34 protein KW - characterization KW - genes KW - thiol proteinase KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16260548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biological+Chemistry&rft.atitle=A+soybean+vacuolar+protein+%28P34%29+related+to+thiol+proteases+is+synthesized+as+a+glycoprotein+precursor+during+seed+maturation.&rft.au=Kalinski%2C+A%3BMelroy%2C+D+L%3BDwivedi%2C+R+S%3BHerman%2C+E+M&rft.aulast=Kalinski&rft.aufirst=A&rft.date=1992-01-01&rft.volume=267&rft.issue=17&rft.spage=12068&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - The effect of pH on the heat production and membrane resistance of Streptococcus bovis . AN - 16257200; 2792470 AB - Non-growing cultures of Streptococcus bovis JB1 which were incubated in 2-(N-moropholino) ethane-sulfonic acid (MES)-phosphate buffer (pH 6.8) and glucose (2 g/l) produced heat at a rate of 0.17 mW/mg protein, and this rate was proportional to the enthalpy change of the homolactic fermentation. When the pH was decreased from 6.8 to 5.8, heat production and glucose consumption increased, the electrical potential ( Delta psi ) declined, the chemical gradient of protons (Z Delta pII) increased, and there was a small increase in total protonmotive force ( Delta p). Further decreases in pH (5.8 to 4.5) caused a marked decrease in heat production and glucose consumption even though there was only a small decline in membrane voltage. JF - Archives of Microbiology AU - Russell, J B AD - Agric. Res. Serv., USDA and Sect. Microbiol., Cornell Univ., Ithaca, NY 14853, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 54 EP - 58 VL - 158 IS - 1 SN - 0302-8933, 0302-8933 KW - effects on KW - Microbiology Abstracts B: Bacteriology KW - Streptococcus bovis KW - membrane potential KW - fermentation KW - protonmotive force KW - production KW - heat KW - cell membranes KW - pH KW - J 02721:Cell cycle, morphology and motility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16257200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Microbiology&rft.atitle=The+effect+of+pH+on+the+heat+production+and+membrane+resistance+of+Streptococcus+bovis+.&rft.au=Russell%2C+J+B&rft.aulast=Russell&rft.aufirst=J&rft.date=1992-01-01&rft.volume=158&rft.issue=1&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Archives+of+Microbiology&rft.issn=03028933&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptococcus bovis; fermentation; pH; membrane potential; protonmotive force; heat; production; cell membranes ER - TY - JOUR T1 - Effect of feeding selected short-chain fatty acids on the in vivo attachment of Salmonella typhimurium in chick ceca. AN - 16256193; 2788369 AB - Two groups of 20 chicks each were fed 1% fatty acid continuously starting at 1 day of age, while a control group of 20 chicks received unsupplemented feed. At 2 days of age, chicks were inoculated orally with 1 ml of Salmonella typhimurium (1 x 10 super(6) colony-forming units/ml). Ceca were obtained from six chicks of each group at 7, 14, and 21 days of age. At 14 days of age, formic and propionic acids had statistically reduced Salmonella) recovery by 2.56 logs and 3.09 logs, respectively, compared with controls. At 21 days of age, both test groups showed significant reductions of approximately 3.6 logs compared with controls. There were no statistical differences in body weights among the groups at 21 days of age. JF - Avian Diseases AU - McHan, F AU - Shotts, E B AD - USDA, Agric. Res. Serv., Russell Res. Center, Athens, GA 30613, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 139 EP - 142 VL - 36 IS - 1 SN - 0005-2086, 0005-2086 KW - chickens KW - Microbiology Abstracts B: Bacteriology KW - adherence KW - fatty acids KW - cecum KW - feeding KW - Salmonella typhimurium KW - J 02862:Infection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16256193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Avian+Diseases&rft.atitle=Effect+of+feeding+selected+short-chain+fatty+acids+on+the+in+vivo+attachment+of+Salmonella+typhimurium+in+chick+ceca.&rft.au=McHan%2C+F%3BShotts%2C+E+B&rft.aulast=McHan&rft.aufirst=F&rft.date=1992-01-01&rft.volume=36&rft.issue=1&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Avian+Diseases&rft.issn=00052086&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Salmonella typhimurium; feeding; adherence; cecum; fatty acids ER - TY - JOUR T1 - The use of immobilized concanavalin A for separation of alternansucrase from dextransucrase in culture broth of Leuconostoc mesenteroides NRRL B-1355. AN - 16252010; 2782289 AB - Immobilized concanavalin A has been used to bind a polysaccharide-glucosyltransferase complex from Leuconostoc mesenteroides NRRL B-1355, which is capable of synthesizing the unusual D-glucan alternan from sucrose. The dextransucrase present in culture fluid passes through a column of immobilized concanavalin A without binding, while the portion of alternansucrase that does bind is eluted using 1-O-methyl alpha -D-mannopyranoside. JF - Biotechnology Techniques AU - Cote, G L AD - USDA, Agric. Res. Serv., Natl. Cent. Agric. Util. Res., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 45 EP - 48 VL - 6 IS - 1 SN - 0951-208X, 0951-208X KW - Leuconostoc mesenteroides KW - affinity chromatography KW - alternansucrase KW - binding KW - concanavalin A KW - dextransucrase KW - immobilization KW - separation KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - W 30401:Enzymes and cofactors KW - A 01006:Enzymes & cofactors KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16252010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Techniques&rft.atitle=The+use+of+immobilized+concanavalin+A+for+separation+of+alternansucrase+from+dextransucrase+in+culture+broth+of+Leuconostoc+mesenteroides+NRRL+B-1355.&rft.au=Cote%2C+G+L&rft.aulast=Cote&rft.aufirst=G&rft.date=1992-01-01&rft.volume=6&rft.issue=1&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Techniques&rft.issn=0951208X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - affinity chromatography; separation; binding; immobilization ER - TY - JOUR T1 - High-affinity iron uptake systems present in Erwinia carotovora subsp. carotovora include the hydroxamate siderophore aerobactin. AN - 16251551; 2786848 AB - The phytopathogenic bacterium Erwinia carotovora subsp. carotovora W3C105 produced the hydroxamate siderophore aerobactin under iron-limiting conditions. A survey of 22 diverse strains of E. carotovora revealed that strain W3C105 alone produced aerobactin. The ferric-aerobactin receptor of strain W3C105 was an 80-kDa protein, identified by immunoblots of Sarkosyl-soluble proteins obtained from E. carotovora cells grown in iron-depleted medium and probed with antiserum raised against the 74-kDa ferric-aerobactin receptor encoded by the pColV-K30 plasmid of Escherichia coli . Genes determining aerobactin biosynthesis and uptake were localized to an 11.3-kb EcoRI-HindIII chromosomal fragment of strain W3C105. The aerobactin biosynthesis genes of E. carotovora W3C105 hybridized to those of the pColV-K30 plasmid of E. coli , but the restriction patterns of the aerobactin regions of E. coli and E. carotovora differed. JF - Journal of Bacteriology AU - Ishimaru, CA AU - Loper, JE AD - USDA, Agric. Res. Serv., Hortic. Crops Res. Lab., 3420 N.W. Orchard Ave., Corvallis, OR 97330, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 2993 EP - 3003 VL - 174 IS - 9 SN - 0021-9193, 0021-9193 KW - subsp.carotovora KW - aerobactin KW - Erwinia carotovora carotovora KW - iron KW - Erwinia carotovora KW - biosynthesis KW - genes KW - isolation KW - restriction fragment length polymorphism KW - uptake KW - Biochemistry Abstracts 1: Biological Membranes (till 1993); Microbiology Abstracts B: Bacteriology KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16251551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=High-affinity+iron+uptake+systems+present+in+Erwinia+carotovora+subsp.+carotovora+include+the+hydroxamate+siderophore+aerobactin.&rft.au=Ishimaru%2C+CA%3BLoper%2C+JE&rft.aulast=Ishimaru&rft.aufirst=CA&rft.date=1992-01-01&rft.volume=174&rft.issue=9&rft.spage=2993&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Erwinia carotovora; biosynthesis; genes; isolation; restriction fragment length polymorphism; uptake ER - TY - JOUR T1 - Northern spotted owls: Influence of prey base and landscape character. AN - 16248049; 2770766 AB - We studied prey populations and the use and composition of home ranges of 47 Northern Spotted Owls (Strix occidentalis caurina ) over 12 mo in five landscapes in two forest types in southwestern Oregon. Owls in Washington used approximately equals 1700 ha of old forest annually and primarily one prey species; available prey biomass was 61 g/ha. Owls in Oregon Douglas-fir (Pseudotsuga menziesii ) forests used 813 plus or minus 133 ha (X super(-) plus or minus SE) of old forest annual and concentrated on two prey species that had a combined biomass of 244 g/ha. Owls in Oregon mixed-conifer forest used 454 plus or minus 84 ha of old forest annually and three primary prey whose availability averaged 338 g/ha. The amount of old forest used by owls studied for 2 yr was 40% greater in the 2nd yr than that used in the 1st yr. No increase in use of old forest was seen in the 3rd yr in Douglas-fir forest; 50% more old forest was used in 3 yr than in the 1st yr in mixed-conifer forest. The most common prey in Washington and Oregon was the northern flying squirrel (Glaucomys sabrinus ). JF - Ecological Monographs AU - Carey, AB AU - Horton, S P AU - Biswell, B L AD - USDA Forest Serv., Pacific Northwest Res. Stn., Olympia, WA 98502, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 223 EP - 250 VL - 62 IS - 2 SN - 0012-9615, 0012-9615 KW - Ecology Abstracts KW - forests KW - USA, Northwest KW - Strix occidentalis caurina KW - home range KW - prey KW - population dynamics KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16248049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Monographs&rft.atitle=Northern+spotted+owls%3A+Influence+of+prey+base+and+landscape+character.&rft.au=Carey%2C+AB%3BHorton%2C+S+P%3BBiswell%2C+B+L&rft.aulast=Carey&rft.aufirst=AB&rft.date=1992-01-01&rft.volume=62&rft.issue=2&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Ecological+Monographs&rft.issn=00129615&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Strix occidentalis caurina; USA, Northwest; population dynamics; prey; home range; forests ER - TY - JOUR T1 - Use of azidobestatin as a photoaffinity label to identify the active site peptide of leucine aminopeptidase. AN - 16246347; 2769346 AB - Beef lens leucine aminopeptidase (blLAP) can be considered prototypical of many enzymes in the family of peptidases. Bestatin, ((2S,3R)-(3-amino-3-hydroxy-4-phenyl-butanoyl)-L-leucine) is a nonhydrolyzable substrate analogue of a peptide, PheLeu, which is rapidly cleaved by blLAP. Bestatin incorporates elements of the putative tetrahedral intermediate, and this results in a >10 super(5)-fold enhancement of binding relative to analogous peptides. Bestatin is the most tightly bound inhibitor of many aminopeptidases. Bestatin was successively converted to nitrobestatin, p-aminobestatin, ( super(3)H)-p-aminobestatin, and finally ( super(3)H)-p-azidobestatin (pAB). Like bestatin, pAB is a slow binding inhibitor of LAP (K sub(i) super(*), the dissociation constant for the final complex, = similar to 4 x 10 super(-9); K sub(i), the dissociation constant for the initial collision complex, = similar to 10 super(-8)). The t sub(1/2) for binding of 2 X 10 super(-8) M and 8 X 10 super(-8) M bestatin are similar to 60 min and similar to 38 min, respectively. JF - Biochemistry (Washington) AU - Taylor, A AU - Peltier, C Z AU - Jahngen, EGE Jr AU - Laxman, E AU - Szewczuk, Z AU - Torre, F J AD - Lab. Nutr. and Vision Res., USDA Hum. Nutr. Res. Cent. Aging Tufts Univ., 711 Washington St., Boston, MA 02111, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 4141 EP - 4150 VL - 31 IS - 16 SN - 0006-2960, 0006-2960 KW - active sites KW - bestatin KW - binding KW - cattle KW - eye lens KW - identification KW - kinetics KW - leucine aminopeptidase KW - photoaffinity labelling KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Use+of+azidobestatin+as+a+photoaffinity+label+to+identify+the+active+site+peptide+of+leucine+aminopeptidase.&rft.au=Taylor%2C+A%3BPeltier%2C+C+Z%3BJahngen%2C+EGE+Jr%3BLaxman%2C+E%3BSzewczuk%2C+Z%3BTorre%2C+F+J&rft.aulast=Taylor&rft.aufirst=A&rft.date=1992-01-01&rft.volume=31&rft.issue=16&rft.spage=4141&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Novel paired starter culture system for sauerkraut, consisting of a nisin-resistant Leuconostoc mesenteroides strain and a nisin-producing Lactococcus lactis strain. AN - 16246114; 2761162 AB - Nisin-resistant Leuconostoc mesenteroides NCK293 and nisin-producing Lactococcus lactis subsp. lactis NCK401 were evaluated separately and in combination for growth and nisin production in a model sauerkraut fermentation. Strains were genetically marked and selectively enumerated by using antibiotic-containing media. The growth and survival of L. mesenteroides were similar in the presence and absence of Lactococcus lactis subsp. lactis . The growth of Lactococcus lactis subsp. lactis was not inhibited, although the maximum cell density was reduced and the population decline was more pronounced in the presence of L. mesenteroides . Nisin was detected within 24 h, and levels were relatively constant over the 12-day test period. The maximum cell populations and nisin levels achieved could be altered by changing the initial cell ratios of L. mesenteroides and Lactococcus lactis subsp. lactis . JF - Applied and Environmental Microbiology AU - Harris, L J AU - Fleming, H P AU - Klaenhammer, T R AD - Food Ferment. Lab., Agric. Res. Serv., USDA, and North Carolina Agric. Res. Serv., Raleigh, NC 27695-7624, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1484 EP - 1489 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - nisin KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lactococcus lactis KW - starter cultures KW - sauerkraut KW - antibiotic resistance KW - fermentation KW - Leuconostoc mesenteroides KW - biosynthesis KW - mixed culture KW - A 01017:Human foods KW - A 01095:Others KW - W2 32370:Antibiotics and antitumor agents KW - W 30965:Miscellaneous, Reviews KW - W2 32380:Food (including SCP) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16246114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Marcy%2C+William+L.%2C+IV&rft.aulast=Marcy&rft.aufirst=William&rft.date=2007-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9780549178668&rft.btitle=&rft.title=The+metamorphosis+of+the+drug+war+and+the+Cold+War+in+the+northern+Andes+and+Central+America+%281970%E2%80%932000%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - starter cultures; sauerkraut; antibiotic resistance; fermentation; biosynthesis; mixed culture; Lactococcus lactis; Leuconostoc mesenteroides ER - TY - JOUR T1 - Nutritional factors regulating growth and accumulation of phenazine 1-carboxylic acid by Pseudomonas fluorescens 2-79. AN - 16245140; 2777651 AB - Pseudomonas fluorescens strain 2-79 (NRRL B-15 132) is a biocontrol agent of take-all of wheat caused by the fungus Gaeumannomyces graminis var. tritici . Strain 2-79 produces the antibiotic phenazine 1-carboxylic acid, which acts as the primary mechanism of disease suppression. As a first step toward designing efficient methods of mass producing and formulating this biocontrol agent, the regulation of growth and antibiotic production by growth factors (including purines, pyrimidines, vitamins) and minerals (supplying B super(3+), Ca super(2+), Co super(2+), Cu super(2+), Fe super(2+), Mg super(2+), Mn super(2+), Mo super(6+), Zn super(2+)) was examined in defined liquid culture. Additions of boric acid and sulfates of iron and magnesium enhanced both cell and associated antibiotic accumulation. JF - Applied Microbiology and Biotechnology AU - Slininger, P J AU - Jackson, MA AD - Ferment. Biochem. Res., Natl. Cent. Agric. Util. Res., USDA, Agric. Res. Serv., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 388 EP - 392 VL - 37 IS - 3 SN - 0175-7598, 0175-7598 KW - antibiotics KW - phenazine 1-carboxylic acid KW - Pseudomonas fluorescens KW - biological control KW - biosynthesis KW - nutrient requirements KW - take-all KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01031:Antifungal & fungicidal agents KW - W 30513:Pest control KW - A 01095:Others KW - J 02781:Biosynthesis and physicochemical properties KW - W 30410:Antibiotics and antitumor agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16245140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Nutritional+factors+regulating+growth+and+accumulation+of+phenazine+1-carboxylic+acid+by+Pseudomonas+fluorescens+2-79.&rft.au=Slininger%2C+P+J%3BJackson%2C+MA&rft.aulast=Slininger&rft.aufirst=P&rft.date=1992-01-01&rft.volume=37&rft.issue=3&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudomonas fluorescens; biosynthesis; nutrient requirements; biological control; take-all ER - TY - JOUR T1 - Growing season trends in the Alaskan climate record. AN - 16244850; 2770908 AB - Linkages between presumed global climate change and agricultural production will enable the development of management strategies to meet the needs of a diverse and future world agricultural enterprise. This study evaluated characteristics trends in the growing length and dates of the last spring and first fall freezes at eight climate stations in Alaska between 1924 and 1989. Two minimum temperature criteria of 0 degree and -3 degree C were used in assessing freeze dates. Half of the stations had no change in growing season length over the last 65 years, whereas the other four stations has a lengthening of the season. Tendencies for longer seasons were in part a result of earlier spring freezes. The growing season shortened at three stations during the period 1940-70, which corresponded with declining Northern Hemisphere temperatures. The presence of changes in the growing season over the last 65 years was apparent in Alaska temperature records. JF - Arctic AU - Sharratt, B S AD - USDA Agric. Res. Serv., 309 O'Neill Build., Univ. Alaska, Fairbanks, AK 99775, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 124 EP - 127 VL - 45 IS - 2 SN - 0004-0843, 0004-0843 KW - growing season KW - Ecology Abstracts KW - historical account KW - USA, Alaska KW - agricultural practices KW - climatic changes KW - D 04100:Terrestrial ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16244850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Arctic&rft.atitle=Growing+season+trends+in+the+Alaskan+climate+record.&rft.au=Sharratt%2C+B+S&rft.aulast=Sharratt&rft.aufirst=B&rft.date=1992-01-01&rft.volume=45&rft.issue=2&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Arctic&rft.issn=00040843&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Alaska; climatic changes; agricultural practices; historical account ER - TY - JOUR T1 - Frequency and distribution of polygyne fire ants (Hymenoptera: Formicidae) in Florida. AN - 16243104; 2781682 AB - In order to determine the frequency and distribution of polygyne and monogyne fire ants (Solenopsis invicta ) in Florida, preselected sites were surveyed from Key West to Tallahassee. Polygyne colonies were found at 15% of infested sites--a frequency similar to other states in the southeastern United States, but much less than in Texas. Polygyny was most common in the region around Marion county, but smaller populations were also scattered across the state. The density of mounds at polygyne sites was more than twice that at monogyne sites (262 versus 115 mounds/ha), although mound diameters were about 20% smaller. Polygyne and monogyne queens averaged the same size (1.42 mm, head width), but monogyne queens were much heavier (24.3 mg versus 14.4 mg) due to their physogastry. As expected, workers in polygyne colonies were considerably smaller than those in monogyne colonies (0.28 mg versus 0.19 mg, dry fat-free). JF - Florida Entomologist AU - Porter, S D AD - Med. Vet. Entomol. Res. Lab., Agric. Res. Serv., USDA, P.O. Box 14565, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 248 EP - 257 VL - 75 IS - 2 SN - 0015-4040, 0015-4040 KW - Ecology Abstracts; Entomology Abstracts KW - USA, Florida KW - Formicidae KW - frequency KW - geographical variations KW - Solenopsis invicta KW - Hymenoptera KW - polygyny KW - Z 05208:Social entomology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16243104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Entomologist&rft.atitle=Frequency+and+distribution+of+polygyne+fire+ants+%28Hymenoptera%3A+Formicidae%29+in+Florida.&rft.au=Porter%2C+S+D&rft.aulast=Porter&rft.aufirst=S&rft.date=1992-01-01&rft.volume=75&rft.issue=2&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Florida+Entomologist&rft.issn=00154040&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Formicidae; Hymenoptera; Solenopsis invicta; USA, Florida; geographical variations; frequency; polygyny ER - TY - CONF T1 - The role of plantation forests in rehabilitating degraded tropical ecosystems. AN - 16241130; 2770728 AB - Plantations of multi-purpose tree species can play an important role in restoring productivity, ecosystem stability, and biological diversity to degraded tropical lands. The present study, conducted at a degraded coastal pasture site in Puerto Rico, compares 4.5-year-old Albizia lebbek (L.) Benth. plantation stands and adjacent control areas with respect to biomass production, understorey species diversity and nutrient storage patterns within vegetation, forest floor organic matter, and mineral soil compartments. Standing crop biomass of understorey vegetation, forest floor organic matter and fine (less than 2 mm) roots averaged 160 g m super(-2), 349 g m super(-2), and 362 g m super(-2) in the plantation plots and 420 g m super(-2), 311 g m super(-2), and 105 g m super(-2) in the control plots. Species richness was considerably greater in plantation than control plots for grasses, vines, and forbs. Seedlings of several secondary forest species were abundant in the plantation understorey but absent in control plots, suggesting an important role for such plantations in accelerating natural regeneration of native forest species on certain sites. JF - Agriculture, Ecosystems & Environment AU - Parrotta, JA Y1 - 1992 PY - 1992 DA - 1992 SP - 115 EP - 133 VL - 41 IS - 2 KW - Puerto Rico KW - Ecology Abstracts KW - tropical environment KW - forests KW - plantations KW - environmental restoration KW - environmental degradation KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16241130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=The+role+of+plantation+forests+in+rehabilitating+degraded+tropical+ecosystems.&rft.au=Parrotta%2C+JA&rft.aulast=Parrotta&rft.aufirst=JA&rft.date=1992-01-01&rft.volume=41&rft.issue=2&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Oak overstory/reproduction relations in two xeric ecosystems in Michigan. AN - 16241093; 2767707 AB - Average reproduction density of oaks in the northern pin oak-black oak/Deschampsia (PBD) ecosystem was approximately half that of the slightly less xeric black oak-white oak/Vaccinium (BWV) ecosystem. However, when variation in total overstory basal area and the basal area of large oaks (i.e. white oaks, of 30 cm diameter at breast height (dbh) or more and black oaks of 36 cm dbh or more) was accounted for, reproduction density of white oak and the black oak species-group (black, northern red, and northern pin oaks) did not differ significantly (P > 0.05) between ecosystems. High white oak reproduction density was associated with low stand basal area and high basal area of white oaks of 30 cm dbh or more. In contrast, high black oak reproduction density was associated with high overstory basal area and high basal area of black oaks of 36 cm dbh or more. In both ecosystems, the height of the tallest stem of oak reproduction per 5.5 m super(2) plot increased with decreasing overstory density for both white oak and black oaks. For a given overstory density, the frequency of occurrence of all size classes of oak reproduction was greater in the black oak-white oak/Vaccinium) ecosystem than in the pin oak-black oak/Deschampsia ecosystem. JF - Forest Ecology and Management AU - Johnson, P S AD - North Cent. Forest Exp. Stn., USDA Forest Serv., 1-26 Agric. Build., Univ. Missouri, Columbia, MO 65211, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 233 EP - 248 VL - 48 IS - 3-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - forests KW - USA, Michigan KW - plant communities KW - Quercus KW - reproduction KW - canopies KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16241093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Oak+overstory%2Freproduction+relations+in+two+xeric+ecosystems+in+Michigan.&rft.au=Johnson%2C+P+S&rft.aulast=Johnson&rft.aufirst=P&rft.date=1992-01-01&rft.volume=48&rft.issue=3-4&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Quercus; USA, Michigan; forests; canopies; reproduction; plant communities ER - TY - JOUR T1 - Effect of inoculant strain and organic matter content on kinetics of 2,4-dichlorophenoxyacetic acid degradation in soil. AN - 16237891; 2774752 AB - We monitored rates of degradation of soluble and sorbed 2,4-dichlorophenoxyacetic acid (2,4-D) in low-organic-matter soil at field capacity amended with 1, 10, or 100 mu g of 2,4-D per g of wet soil and inoculated with one of two bacterial strains (MI and 155) with similar maximum growth rates ( mu sub(max)) but significantly different half-saturation growth constants (K sub(s)). Concentrations of soluble 2,4-D were determined by analyzing samples of pore water pressed from soil, and concentrations of sorbed 2,4-D were determined by solvent extraction. Between 65 and 75% of the total 2,4-D was present in the soluble phase at equilibrium, resulting in soil solution concentrations of ca. 8, 60, and 600 mu g of 2,4-D per ml, respectively. Soluble 2,4-D was metabolized preferentially; this was followed by degradation of both sorbed (after desorption) and soluble 2,4-D. JF - Applied and Environmental Microbiology AU - Greer, LE AU - Shelton AD - Pestic. Degradation Lab., Agric. Res. Serv., USDA, 10300 Baltimore Ave., Beltsville, MD 20705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1459 EP - 1465 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - 2,4-D KW - inoculation KW - soil types KW - soils KW - Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - biodegradation KW - organic matter KW - adsorption KW - bacteria KW - soil KW - A 01054:Effect of herbicides KW - P 5000:LAND POLLUTION KW - J 02901:Soil and plants KW - W2 32510:Waste treatment, environment, pollution KW - W 30965:Miscellaneous, Reviews KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16237891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Effect+of+inoculant+strain+and+organic+matter+content+on+kinetics+of+2%2C4-dichlorophenoxyacetic+acid+degradation+in+soil.&rft.au=Greer%2C+LE%3BShelton&rft.aulast=Greer&rft.aufirst=LE&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1459&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - biodegradation; inoculation; soil types; bacteria; adsorption; organic matter; soil ER - TY - JOUR T1 - Availability of nesting sites as a limit to woodpecker populations. AN - 16234593; 2764341 AB - We determined availability of potential cavity sites in a second-growth beech-birch-maple (Fagus-Betula-Acer ) forest in central New York, USA and related these measures to estimates of woodpecker abundance from line-transect surveys. Nine habitat variables, including seven indicators of decay, were used to develop a model to discriminate between cavity trees and non-cavity trees. Presence of broken tops and broken branch stubs > 10 cm diameter were the best predictors of bird use. Using the model to classify trees as potential nest sites, we estimated the density of such trees as 80.7 trees/ha. This supply of potential cavity trees should have been sufficient to support potential maximum woodpecker populations, but our estimates of density for five species of woodpeckers were well below potential maximum woodpecker densities in northern hardwoods. Availability of suitable nest trees apparently was not limiting woodpeckers on the study area, thus efforts to maintain or increase woodpecker populations should not focus solely on providing potential cavity trees because other factors may be limiting. JF - Forest Ecology and Management AU - Welsh, CJE AU - Capen, DE AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Amherst, MA 01003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 31 EP - 41 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - Picidae KW - resource availability KW - nests KW - limiting factors KW - USA, New York KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Availability+of+nesting+sites+as+a+limit+to+woodpecker+populations.&rft.au=Welsh%2C+CJE%3BCapen%2C+DE&rft.aulast=Welsh&rft.aufirst=CJE&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picidae; USA, New York; resource availability; nests; limiting factors ER - TY - JOUR T1 - Changes in polyamine and glutathione contents of a green alga, Chlorogonium elongatum (Dang) France exposed to mercury. AN - 16234186; 2758127 AB - Effects of 5.0 and 10.0 mu g/ml mercury as mercuric chloride (HgCl sub(2)) (w/v) were studied on polyamine and glutathione contents of a green alga Chlorogonium elongatum) (Dang) France grown under culture conditions. Homospermidine (H-Spd) and 1,3-diaminopropane (Dap) have also been identified in this alga in addition to putrescine (Put), spermidine (Spd) and spermine (Spm), the typical representatives of the polyamine pool. Exposure to mercury resulted in an increase in the concentrations of Put and Dap, but a decrease in those of Spd, Spm and H-Spd. Mercury treatments increased the concentration of total glutathione, including both oxidized (GSSG) and reduced (GSH) glutathione. The GSH/GSSG ratio was higher in control samples than in mercury-treated samples. The possible role of polyamines and glutathione in detoxifying the heavy metal is discussed. JF - Environmental and Experimental Botany AU - Agrawal, S B AU - Agrawal, M AU - Lee, E H AU - Kramer, G F AU - Pillai, P AD - Climate Stress Lab., USDA/ARS, Beltsville Agric. Res. Cent., 10300 Baltimore Ave., Beltsville, MD 20705-2530, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 145 EP - 151 VL - 32 IS - 2 SN - 0098-8472, 0098-8472 KW - effects on KW - polyamines KW - glutathione KW - mercury KW - heavy metals KW - Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Chlorogonium elongatum KW - K 03099:Pollution KW - P 6000:TOXICOLOGY AND HEALTH KW - K 03063:Effects of physical & chemical factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16234186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+and+Experimental+Botany&rft.atitle=Changes+in+polyamine+and+glutathione+contents+of+a+green+alga%2C+Chlorogonium+elongatum+%28Dang%29+France+exposed+to+mercury.&rft.au=Agrawal%2C+S+B%3BAgrawal%2C+M%3BLee%2C+E+H%3BKramer%2C+G+F%3BPillai%2C+P&rft.aulast=Agrawal&rft.aufirst=S&rft.date=1992-01-01&rft.volume=32&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Environmental+and+Experimental+Botany&rft.issn=00988472&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chlorogonium elongatum; mercury; heavy metals ER - TY - JOUR T1 - Relating soil chemistry and plant relationships in wooded draws of the northern Great Plains. AN - 16231803; 2768960 AB - Soils of the green ash/chokecherry habitat type in northwestern South Dakota were evaluated for 22 properties to determine whether any could be correlated with density of chokecherry (Prunus virginiana ) and snowberry Symphoricarpos occidentalis ). Surface soils were moderately fertile, with high levels of all elements except phosphorus and nitrogen. Soils were fine textured, with moderately high cation exchange capacity and saturation percentages. However, soils were nonsaline-nonalkaline with low amounts of exchangeable sodium. None of the soil properties showed good correlation with chokecherry and snowberry densities. Greatest correlations were found between each of the shrub species and grass. JF - Great Basin Naturalist AU - Voorhees, ME AU - Uresk, D W AD - USDA Forest Serv., Rocky Mt. Forest and Range Exp. Stn., South Dakota Sch. Mines and Technol., 501 E. St. Joseph St., Rapid City, SD 57701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 35 EP - 40 VL - 52 IS - 1 SN - 0017-3614, 0017-3614 KW - Ecology Abstracts KW - relationship KW - USA, South Dakota KW - Symphoricarpos occidentalis KW - soil chemistry KW - plant communities KW - drainage systems KW - Prunus virginiana KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Great+Basin+Naturalist&rft.atitle=Relating+soil+chemistry+and+plant+relationships+in+wooded+draws+of+the+northern+Great+Plains.&rft.au=Voorhees%2C+ME%3BUresk%2C+D+W&rft.aulast=Voorhees&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=52&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Great+Basin+Naturalist&rft.issn=00173614&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus virginiana; Symphoricarpos occidentalis; USA, South Dakota; soil chemistry; relationship; plant communities; drainage systems ER - TY - JOUR T1 - Mixed-conifer seedling growth varies in response to overstory release. AN - 16231534; 2768073 AB - Five-year height growth of Pinus ponderosa, P. lambertiana, Libocedrus decurrens, Pseudotsuga menziesii , and Abies concolor seedlings was observed beneath a 25-year-old Pi. ponderosa plantation on the western slope of the Sierra Nevada, California. The plantation had been thinned to allow 15%, 34% and 58% of full sun (PFS) to reach the seedlings. All species except Pi. lambertiana responded in general accordance with accepted shade-tolerance rankings. Pinus lambertiana , like Pi. ponderosa , seemed intolerant of dense shade (15 and 34 PFS), but growth was similar to that of L. decurrens and Ps. menziesii under the thin canopy (58 PFS), suggesting a unique ability to respond with rapid growth to gaps in the canopy. JF - Forest Ecology and Management AU - Oliver, W W AU - Dolph, K L AD - Pacific Southwest Forest and Range Exp. Stn., USDA Forest Serv., 2400 Washington Ave., Redding, CA 96001, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 179 EP - 183 VL - 48 IS - 1-2 SN - 0378-1127, 0378-1127 KW - USA, California, Sierra Nevada KW - Ecology Abstracts KW - response KW - mixing KW - Pinaceae KW - growth rate KW - release KW - canopies KW - seedlings KW - D 04635:Conifers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Mixed-conifer+seedling+growth+varies+in+response+to+overstory+release.&rft.au=Oliver%2C+W+W%3BDolph%2C+K+L&rft.aulast=Oliver&rft.aufirst=W&rft.date=1992-01-01&rft.volume=48&rft.issue=1-2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinaceae; seedlings; growth rate; mixing; response; canopies; release ER - TY - JOUR T1 - Phylogeny, historical biogeography, and ecology of Anophryocephalus spp. (Eucestoda: Tetrabothriidae) among pinnipeds of the Holarctic during the late Tertiary and Pleistocene. AN - 16231487; 2757447 AB - Phylogenetic systematic analyses of Anophryocephalus spp. resulted in a single most-parsimonious cladogram (consistency index: 80%). Cladograms for pinniped hosts (phocids and otariids) and Anophryocephalus spp. were highly incongruent, corroborating a hypothesis for colonization as a dominant determinant of parasite diversification. Phoca (Pusa ) spp. in the Atlantic basin are postulated as the initial hosts; range expansion for hosts and parasites into the Pacific basin through the Arctic (ca. 3.0-2.5 million years ago) was followed by radiation of Anophryocephalus spp. among Phoca spp. and subsequent colonization of otariids (Eumetopias jubatus as typical hosts; ca. 2.0 million years ago). Host phylogeny and historical biogeography in conjunction with host distributions of these cestodes indicate evolution of Anophryocephalus was associated with dispersal and radiation of Phoca spp. in the Holarctic during the Late Pliocene and Pleistocene. Isolation in regional refugia and vicariance (during stadials) and subsequent range expansion and sequential colonization (interstadials) are postulated as the primary determinants of host--parasite diversification in the North Pacific during the late Tertiary and Quaternary. JF - Canadian Journal of Zoology/Revue Canadienne de Zoologie AU - Hoberg, E P AU - Adams, A M AD - USDA, Agric. Res. Serv., Biosyst. Parasitol. Lab., BARC East, Build. 1180, 10300 Baltimore Ave., Beltsville, MD 20715-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 703 EP - 719 VL - 70 IS - 4 SN - 0008-4301, 0008-4301 KW - Anophryocephalus KW - Pleistocene KW - host-parasite interactions KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Holarctic Region KW - Marine KW - parasites KW - phylogeny KW - Pinnipedia KW - biogeography KW - Tertiary KW - hosts KW - Cestoda KW - O 1070:Ecology/Community Studies KW - D 04672:Mammals KW - Q1 08484:Species interactions: parasites and diseases KW - Q1 08187:Palaeontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16231487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.atitle=Phylogeny%2C+historical+biogeography%2C+and+ecology+of+Anophryocephalus+spp.+%28Eucestoda%3A+Tetrabothriidae%29+among+pinnipeds+of+the+Holarctic+during+the+late+Tertiary+and+Pleistocene.&rft.au=Hoberg%2C+E+P%3BAdams%2C+A+M&rft.aulast=Hoberg&rft.aufirst=E&rft.date=1992-01-01&rft.volume=70&rft.issue=4&rft.spage=703&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Zoology%2FRevue+Canadienne+de+Zoologie&rft.issn=00084301&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Tertiary; parasites; phylogeny; hosts; Pleistocene; biogeography; host-parasite interactions; Pinnipedia; Cestoda; Holarctic Region; Marine ER - TY - JOUR T1 - Test assemblies for monitoring decay in wood exposed above ground. AN - 16229197; 2760607 AB - No method exists for quantitatively evaluating the durability of wood exposed above ground. The aim of this study was to develop a test assembly that would (1) be conducive to rapid decay, (2) exhibit minimal variation between replicates in decay response, and (3) lend itself to nondestructive testing in the field. Eighteen different designs for test units of southern pine sapwood were tested in an open field in southern Mississippi in the United States and in a rainforest in Panama. At both locations, test units were exposed above ground to natural infestations of wood decay fungi. No design seemed particularly advantageous in the tropical climate. In the temperate climate, onset of wood decay and frequency of failed units at given intervals of exposure were influenced by the size of the units. Two designs met experimental objectives. JF - International Biodeterioration & Biodegradation AU - De Groot, RC AD - USDA For. Serv., For. Prod. Lab., 1 Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 151 EP - 175 VL - 29 IS - 2 SN - 0964-8305, 0964-8305 KW - Pinus elliotti KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - tropical environment KW - temperate environments KW - monitoring KW - wood KW - Pinus taeda KW - equipment KW - Pinus echinata KW - decay fungi KW - decay KW - A 01046:Deterioration & treatment of timber KW - K 03098:Spoilage & biodegradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16229197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Biodeterioration+%26+Biodegradation&rft.atitle=Test+assemblies+for+monitoring+decay+in+wood+exposed+above+ground.&rft.au=De+Groot%2C+RC&rft.aulast=De+Groot&rft.aufirst=RC&rft.date=1992-01-01&rft.volume=29&rft.issue=2&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; Pinus echinata; wood; decay; decay fungi; monitoring; equipment; tropical environment; temperate environments ER - TY - JOUR T1 - Characterization of two nisin-producing Lactococcus lactis subsp. lactis strains isolated from a commercial sauerkraut fermentation. AN - 16228816; 2761107 AB - Two Lactococcus lactis subsp. lactis strains, NCK400 and LJH80, isolated from a commercial sauerkraut fermentation were shown to produce nisin. LJH80 was morphologically unstable and gave rise to two stable, nisin-producing (Nip super(+)) derivatives, NCK318-2 and NCK318-3. NCK400 and derivatives of LJH80 exhibited identical morphological and metabolic characteristics, but could be distinguished on the basis of plasmid profiles and genomic hybridization patterns to a DNA probe specific for the iso-ISS1 element, IS946. NCK318-2 and NCK318-3 harbored two and three plasmids, respectively, which hybridized with IS946. Plasmid DNA was not detected in NCK400, and DNA from this strain failed to hybridize with IS946. Despite the absence of detectable plasmid DNA in NCK400, nisin-negative derivatives (NCK402 and NCK403) were isolated after repeated transfer in broth at 37 degree C. Nisin-negative derivatives concurrently lost the ability to ferment sucrose and became sensitive to nisin. JF - Applied and Environmental Microbiology AU - Harris, L J AU - Fleming, H P AU - Klaenhammer, T R AD - Food Ferment. Lab., Agric. Res. Serv., USDA, and North Carolina Agric. Res. Serv., Raleigh, NC 27695-7624, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1477 EP - 1483 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - nisin KW - spaN gene KW - subsp.lactis KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Lactococcus lactis KW - sauerkraut KW - isolation KW - hybridization analysis KW - genes KW - fermentation KW - biotyping KW - biosynthesis KW - biochemical characteristics KW - A 01017:Human foods KW - A 01095:Others KW - W2 32370:Antibiotics and antitumor agents KW - W 30965:Miscellaneous, Reviews KW - W2 32380:Food (including SCP) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16228816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Characterization+of+two+nisin-producing+Lactococcus+lactis+subsp.+lactis+strains+isolated+from+a+commercial+sauerkraut+fermentation.&rft.au=Harris%2C+L+J%3BFleming%2C+H+P%3BKlaenhammer%2C+T+R&rft.aulast=Harris&rft.aufirst=L&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1477&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hybridization analysis; isolation; sauerkraut; genes; biotyping; fermentation; biochemical characteristics; biosynthesis; Lactococcus lactis ER - TY - JOUR T1 - Temporal variation in rangeland grasshopper (Orthoptera: Acrididae) communities in the steppe region of Montana, USA. AN - 16227979; 2760204 AB - A study was conducted to evaluate changes in rangeland grasshopper communities over a 5-year period in the Agropyron spicatum (Pursh) Scribn. and Smith and Bouteloua gracilis (H.B.K.) Lag. provinces of the steppe region on Montana, USA. Results showed that it was possible to categorize years into outbreak, non-outbreak, and transitional based on rangeland grasshopper intensity. Nearly twice as many species were observed in outbreak versus non-outbreak years. Of the 57 total grasshopper species collected over the entire study period, 16 species were found only during outbreak years and only two were found exclusively during non-outbreak years. Of the remaining 39 species collected during outbreak and non-outbreak years, 27 species showed no significant differences in the percentage of the community that they represented and 11 species showed significant increases. Results support the hypothesis that grasshopper communities overall are sensitive to temporal changes in resources, even though responses of individual species differed. JF - Canadian Entomologist AU - Kemp, W P AD - USDA Agric. Res. Serv., Rangeland Insect Lab., Bozeman, MT 59717-036, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 437 EP - 450 VL - 124 IS - 3 SN - 0008-347X, 0008-347X KW - Entomology Abstracts; Ecology Abstracts KW - community composition KW - Acrididae KW - Orthoptera KW - temporal variations KW - rangelands KW - USA, Montana KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16227979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Entomologist&rft.atitle=Temporal+variation+in+rangeland+grasshopper+%28Orthoptera%3A+Acrididae%29+communities+in+the+steppe+region+of+Montana%2C+USA.&rft.au=Kemp%2C+W+P&rft.aulast=Kemp&rft.aufirst=W&rft.date=1992-01-01&rft.volume=124&rft.issue=3&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Canadian+Entomologist&rft.issn=0008347X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Acrididae; Orthoptera; USA, Montana; temporal variations; rangelands; community composition ER - TY - JOUR T1 - Oxidative degradation of phenanthrene by the ligninolytic fungus Phanerochaete chrysosporium . AN - 16221145; 2760329 AB - The ligninolytic fungus Phanerochaete chrysosporium oxidized phenanthrene and phenanthrene-9,10-quinone (PQ) at their C-9 and C-10 positions to give a ring-fission product, 2,2'-diphenic acid (DPA), which was identified in chromatographic and isotope dilution experiments. DPA formation from phenanthrene was somewhat greater in low-nitrogen (ligninolytic) cultures than in high-nitrogen (nonligninolytic) cultures and did not occur in uninoculated cultures. The oxidation of PQ to DPA involved both fungal and abiotic mechanisms, was unaffected by the level of nitrogen added, and was significantly faster than the cleavage of phenanthrene to DPA. Phenanthrene-trans-9,10-dihydrodiol, which was previously shown to be the principal phenanthrene metabolite in nonligninolytic P. chrysosporium cultures, was not formed in the ligninolytic cultures employed here. JF - Applied and Environmental Microbiology AU - Hammel, KE AU - Gai, Wen Zhi AU - Green, B AU - Moen, MA AD - Inst. Microb. and Biochem. Technol., For. Prod. Lab., USDA, Madison, WI 35705, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1832 EP - 1838 VL - 58 IS - 6 SN - 0099-2240, 0099-2240 KW - phenanthrene KW - phenanthrenequinone KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Phanerochaete chrysosporium KW - metabolites KW - biodegradation KW - metabolic pathways KW - intermediates KW - oxidation KW - A 01016:Microbial degradation KW - W2 32510:Waste treatment, environment, pollution KW - K 03098:Spoilage & biodegradation KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16221145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Oxidative+degradation+of+phenanthrene+by+the+ligninolytic+fungus+Phanerochaete+chrysosporium+.&rft.au=Hammel%2C+KE%3BGai%2C+Wen+Zhi%3BGreen%2C+B%3BMoen%2C+MA&rft.aulast=Hammel&rft.aufirst=KE&rft.date=1992-01-01&rft.volume=58&rft.issue=6&rft.spage=1832&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - metabolites; biodegradation; metabolic pathways; intermediates; oxidation; Phanerochaete chrysosporium ER - TY - JOUR T1 - Evaluation of the nematode Steinernema carpocapsae to control fire ants in nursery stock. AN - 16217225; 2750422 JF - Florida Entomologist AU - Jouvenaz, D P AU - Martin, W R AD - USDA, ARS, Med. & Vet. Entomol. Res. Lab., 1600 S.W. 23rd Dr., Gainesville, FL 32608, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 148 EP - 151 VL - 75 IS - 1 SN - 0015-4040, 0015-4040 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Entomology Abstracts KW - Solenopsis invicta KW - Steinernema carpocapsae KW - biological control KW - pest control KW - Formicidae KW - horticulture KW - Hymenoptera KW - Nematoda KW - Z 05207:Agricultural & general applied entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16217225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Entomologist&rft.atitle=Evaluation+of+the+nematode+Steinernema+carpocapsae+to+control+fire+ants+in+nursery+stock.&rft.au=Jouvenaz%2C+D+P%3BMartin%2C+W+R&rft.aulast=Jouvenaz&rft.aufirst=D&rft.date=1992-01-01&rft.volume=75&rft.issue=1&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Florida+Entomologist&rft.issn=00154040&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - biological control; pest control; horticulture; Solenopsis invicta; Steinernema carpocapsae; Formicidae; Hymenoptera; Nematoda ER - TY - JOUR T1 - FORAGE: A model of forage intake in beef cattle. AN - 16214633; 2758018 AB - A deterministic simulation model (FORAGE) has been developed as an interface between the plant and animal components of a general rangeland ecosystem model (SPUR). The model predicts forage intake and diet selection of grazing beef cattle by simulating the mechanistic components of grazing behavior. Bite size, rate of biting, rate of intake and grazing time are modified by changes in sward characteristics. Sensitivity analyses revealed that the model is sensitive to underestimation of critical parameters. The model suggests that, when forage availability is limited, intake is limited by rate of intake and grazing time. JF - Ecological Modelling AU - Baker, B B AU - Bourdon, R M AU - Hanson, J D AD - USDA-ARS, Great Plains Syst. Res., 301 S. Howes, P.O. Box E, Fort Collins, CO 80522, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 257 EP - 279 VL - 60 IS - 3-4 SN - 0304-3800, 0304-3800 KW - FORAGE KW - diets KW - food availability KW - foraging behavior KW - grazing KW - livestock KW - mathematical models KW - Ecology Abstracts; Animal Behavior Abstracts KW - Y 25497:Mammals (excluding primates) KW - Y 25847:Mammals (excluding primates) KW - D 04672:Mammals KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16214633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=FORAGE%3A+A+model+of+forage+intake+in+beef+cattle.&rft.au=Baker%2C+B+B%3BBourdon%2C+R+M%3BHanson%2C+J+D&rft.aulast=Baker&rft.aufirst=B&rft.date=1992-01-01&rft.volume=60&rft.issue=3-4&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - foraging behavior; diets; grazing; food availability; livestock; mathematical models; FORAGE ER - TY - JOUR T1 - The relative success of Africanized and European honey-bees over a range of life-zones in Costa Rica. AN - 16213209; 2741223 AB - The reproductive success and biology of Africanized and European honey-bees (Apis mellifera ) were compared for a year over three life-zones from 900 m to 2800 m in Costa Rica, with the aim of identifying the factors which might limit the distribution of both bee types in tropical highlands. There was a significant difference in survivorship during the rainy season between European colonies given supplemental feedings and those not so fed; however, there were no significant differences in survivorship between the fed and unfed Africanized colonies. More European than Africanized colonies died from gradual weakening, and only Africanized colonies absconded. However, colony deaths and absconding occurred with approximately equal frequency over all elevations during the year. Almost three times as many Africanized as European colonies swarmed over the year. Although the majority of swarms occurred in the dry season at the lowest apiary, both bee types issued swarms at the highest elevation. JF - Journal of Applied Ecology AU - Spivak, M AD - Cent. Insect Sci., Univ. Arizona, c/o USDA Carl Hayden Bee Res. Cent., 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 150 EP - 162 VL - 29 IS - 1 SN - 0021-8901, 0021-8901 KW - Africanized vs. European KW - Ecology Abstracts; Entomology Abstracts KW - Costa Rica KW - Apis mellifera KW - ecological distribution KW - survival KW - Hymenoptera KW - breeding success KW - Apidae KW - Z 05205:Populations & general ecology KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16213209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Ecology&rft.atitle=The+relative+success+of+Africanized+and+European+honey-bees+over+a+range+of+life-zones+in+Costa+Rica.&rft.au=Spivak%2C+M&rft.aulast=Spivak&rft.aufirst=M&rft.date=1992-01-01&rft.volume=29&rft.issue=1&rft.spage=150&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Ecology&rft.issn=00218901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; Costa Rica; survival; breeding success; ecological distribution ER - TY - JOUR T1 - Identification and distribution of cross-pollinating honey-bees on almonds. AN - 16212818; 2741187 AB - Pollen on stigmas and the bodies of honey-bees foraging on almond blossoms was identified in 1988 and 1989. The percentage of blossoms setting nuts also was measured with respect to a tree limb's adjacent pollen source. Every honey-bee that we collected foraging on almond blossoms had self-pollen on its body and 90% or more had cross-pollen. In 1988, 60-92% of the foragers had non-almond pollen on their bodies, while in 1989 the percentages were 92-100%. In 1988 there was significantly more self- and cross-pollen on foragers' bodies than non-almond pollen with the exception of "Peerless" nectar collectors. However, in 1989 the percentages of cross- and non-almond pollen were equivalent except for "Price", and were significantly less than the percentages of self-pollen. In 1988, 42 multiplied by 1 - 81 multiplied by 2% of the stigmas we examined had self-pollen, 36 multiplied by 8 - 68 multiplied by 7% had cross-pollen, and 43 multiplied by 7 - 94 multiplied by 0% had non-almond pollen. In 1989, 60 multiplied by 0 - 100 multiplied by 0% of the stigmas had self-pollen, 10-100% had cross-pollen, and 80 multiplied by 0 - 100 multiplied by 0% had non-almond pollen. JF - Journal of Applied Ecology AU - Degrandi-Hoffman, G AU - Thorp, R AU - Loper, G AU - Eisikowitch, D AD - Carl Hayden Bee Res. and Biol. Control Cent., USDA-ARS, 2000 East Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 238 EP - 246 VL - 29 IS - 1 SN - 0021-8901, 0021-8901 KW - Ecology Abstracts; Entomology Abstracts KW - Prunus dulcis KW - foraging behavior KW - Apis mellifera KW - cross-pollination KW - Hymenoptera KW - apiculture KW - Apidae KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16212818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Ecology&rft.atitle=Identification+and+distribution+of+cross-pollinating+honey-bees+on+almonds.&rft.au=Degrandi-Hoffman%2C+G%3BThorp%2C+R%3BLoper%2C+G%3BEisikowitch%2C+D&rft.aulast=Degrandi-Hoffman&rft.aufirst=G&rft.date=1992-01-01&rft.volume=29&rft.issue=1&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Ecology&rft.issn=00218901&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prunus dulcis; Apis mellifera; Apidae; Hymenoptera; foraging behavior; cross-pollination; apiculture ER - TY - JOUR T1 - Characteristics of a new cellulolytic Clostridium sp. isolated from pig intestinal tract. AN - 16211454; 2734851 AB - Gram-positive, spore-forming, motile, cellulolytic rods were isolated from 10 super(7) dilutions of pig fecal samples. The pigs had previously been fed pure cultures of the ruminal cellulolytic organism Clostridium longisporum). Isolates formed terminal to subterminal spores, and a fermentable carbohydrate was required for growth. Besides cellulose, the isolates utilized cellobiose, glycogen, maltose, and starch. However, glucose, fructose, sucrose, pectin, and xylose were not used as energy sources. Major fermentation products included formate and butyrate. The isolates did not digest proteins from gelatin or milk. Unlike C. longisporum , which has limited ability to degrade cell wall components from grasses (switchgrass, bromegrass, and ryegrass), the swine isolates were equally effective in degrading these components from both alfalfa and grasses. JF - Applied and Environmental Microbiology AU - Varel, V H AU - Pond, W G AD - Roman L. Hruska U.S. Meat Anim. Res. Cent., Agric. Res. Serv., USDA, Clay Center, NE 68933, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1645 EP - 1649 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - cellulose KW - pigs KW - Microbiology Abstracts B: Bacteriology KW - Clostridium KW - degradation KW - cellulolytic bacteria KW - fermentation KW - intestinal microflora KW - biochemical characteristics KW - J 02861:Microflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16211454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Characteristics+of+a+new+cellulolytic+Clostridium+sp.+isolated+from+pig+intestinal+tract.&rft.au=Varel%2C+V+H%3BPond%2C+W+G&rft.aulast=Varel&rft.aufirst=V&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1645&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Clostridium; cellulolytic bacteria; intestinal microflora; biochemical characteristics; degradation; fermentation ER - TY - JOUR T1 - An experimental model for subclinical edema disease (Escherichia coli enterotoxemia) manifest as vascular necrosis in pigs. AN - 16211195; 2748083 AB - An experimental model for subclinical edema disease was developed in weanling pigs. In multiple experiments, 3-week-old pigs were weaned, then inoculated intragastrically with 10 super(10) colony-forming units of an SLT-IIv-positive strain of Escherichia coli originally isolated from a pig with edema disease (principals). Control pigs were inoculated with a nonpathogenic E. coli strain. Of 39 principals, 8 developed clinical edema disease within 14 days after inoculation. However, 20 of 21 principals that did not develop clinical signs of edema disease, but were submitted for necropsy examination at 14 days after inoculation, had characteristic vascular lesions of edema disease. Vascular lesions, found principally in ileum and brain, consisted of segmental necrosis of myocytes in the tunica media of small arteries and arterioles. JF - American Journal of Veterinary Research AU - Kausche, F M AU - Dean, E A AU - Arp, L H AU - Samuel, JE AU - Moon, H W AD - Natl. Anim. Dis. Cent., USDA, Agric. Res. Serv., P.O. Box 70, Ames, IA 50010, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 281 EP - 287 VL - 53 IS - 3 SN - 0002-9645, 0002-9645 KW - pigs KW - edema disease KW - Microbiology Abstracts B: Bacteriology; Toxicology Abstracts KW - enterotoxemia KW - Escherichia coli KW - animal models KW - X 24171:Microbial KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16211195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Veterinary+Research&rft.atitle=An+experimental+model+for+subclinical+edema+disease+%28Escherichia+coli+enterotoxemia%29+manifest+as+vascular+necrosis+in+pigs.&rft.au=Kausche%2C+F+M%3BDean%2C+E+A%3BArp%2C+L+H%3BSamuel%2C+JE%3BMoon%2C+H+W&rft.aulast=Kausche&rft.aufirst=F&rft.date=1992-01-01&rft.volume=53&rft.issue=3&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Veterinary+Research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; enterotoxemia; animal models ER - TY - JOUR T1 - Identification of peptides from the adenine binding domains of ATP and AMP in adenylate kinase: Isolation of photoaffinity-labeled peptides by metal chelate chromatography. AN - 16210531; 2741297 AB - Photoaffinity labeling with azidoadenine nucleotides was used to identify peptides from the ATP and AMP binding domains on chicken muscle adenylate kinase. Competition binding studies and enzyme assays showed that the 8-azido analogues of Ap sub(4)A and ATP modified only the MgATP super(2-) site of adenylate kinase, whereas the 2-zido analogue of ADP modified the enzyme at both the ATP and AMP sites. The positions of the two nucleotide binding sites on the enzyme were deduced by isolating and sequencing the modified peptides. JF - Biochemistry (Washington) AU - Salvucci, ME AU - Chavan, A J AU - Haley, B E AD - USDA-ARS, Univ. Kentucky, 107-A Anim. Pathol. Build., Lexington, KY 40546-0076, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 4479 EP - 4487 VL - 31 IS - 18 SN - 0006-2960, 0006-2960 KW - adenine KW - adenylate kinase KW - binding KW - chickens KW - domains KW - muscles KW - photoaffinity labelling KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16210531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Identification+of+peptides+from+the+adenine+binding+domains+of+ATP+and+AMP+in+adenylate+kinase%3A+Isolation+of+photoaffinity-labeled+peptides+by+metal+chelate+chromatography.&rft.au=Salvucci%2C+ME%3BChavan%2C+A+J%3BHaley%2C+B+E&rft.aulast=Salvucci&rft.aufirst=ME&rft.date=1992-01-01&rft.volume=31&rft.issue=18&rft.spage=4479&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 ER - TY - JOUR T1 - Infestation and dispersal of Noctuidonema guyanense (Nematoda: Aphelenchoididae) on Spodoptera frugiperda (Lepidoptera: Noctuidae). AN - 16207111; 2734819 AB - The distribution, dispersal, and population growth of an ectoparasitic nematode, Noctuidonema guyanense Remillet & Silvain, were studied on mating pairs of Spodoptera frugiperda (J. E. Smith) in the laboratory. Nematode populations were the greatest on terminal abdominal segments of wild S. frugiperda males. Eggs and neonates were predominant on abdominal segments eight to ten, whereas juveniles were distributed widely along a host's abdomen and thorax. Although female nematodes moved from infested male moths to noninfested female moths within 15 min after initiation of host mating, male and immature nematodes often did not transfer until 1.5-2.0 h after host copulation began. Nematodes migrated anteriorly to the fifth abdominal segment of new hosts in 4-7 h. Forty-eight percent of the host-matings resulted in the transfer of an average of 5.3 nematodes to new hosts. JF - Environmental Entomology AU - Rogers, CE AU - Marti, OG Jr AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 417 EP - 421 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Noctuidonema guyanense KW - Lepidoptera KW - Nematoda KW - Noctuidae KW - Spodoptera frugiperda KW - infestation KW - parasitism KW - population growth KW - spatial distribution KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Entomology Abstracts KW - D 04659:Insects KW - Z 05182:Pathology KW - W 30513:Pest control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16207111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Infestation+and+dispersal+of+Noctuidonema+guyanense+%28Nematoda%3A+Aphelenchoididae%29+on+Spodoptera+frugiperda+%28Lepidoptera%3A+Noctuidae%29.&rft.au=Rogers%2C+CE%3BMarti%2C+OG+Jr&rft.aulast=Rogers&rft.aufirst=CE&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Noctuidae; Lepidoptera; Nematoda; infestation; spatial distribution; population growth; parasitism ER - TY - JOUR T1 - Identification and cloning of Bradyrhizobium japonicum genes expressed strain selectively in soil and rhizosphere. AN - 16204675; 2734595 AB - The growth of Bradyrhizobium japonicum USDA 110 and USDA 438 in soil extract-supplemented medium led to transcription of a large amount of DNA not expressed in basal medium. Strain USDA 438 was more competitive for the nodulation of soybean than strain USDA 110. To identify and isolate DNA regions which were expressed specifically in strain USDA 438 but not in strain USDA 110 in response to soil extract or soybean root exudate, we developed a subtractive RNA hybridization procedure. Several cosmid clones which showed strain-specific gene expression were isolated from a USDA 438 gene library. Two clones enhanced competitive nodulation when mobilized to USDA 110. The method described may be useful for identifying genes expressed in response to environmental stimuli or genes expressed differently in related microbial strains. JF - Applied and Environmental Microbiology AU - Bhagwat, A A AU - Keister, D L AD - Soybean and Alfalfa Res. Lab., Build. 011, HH-19, BARC-W, Agric. Res. Ser., USDA, Beltsville, MD 20705-2350, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 1490 EP - 1495 VL - 58 IS - 5 SN - 0099-2240, 0099-2240 KW - Bradyrhizobium japonicum KW - Glycine max KW - cloning KW - gene expression KW - genes KW - nodulation KW - rhizosphere KW - soil KW - transcription KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01051:Nitrogen cycle KW - G 07320:Bacterial genetics KW - J 02901:Soil and plants KW - W 30514:Soil organisms KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16204675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Identification+and+cloning+of+Bradyrhizobium+japonicum+genes+expressed+strain+selectively+in+soil+and+rhizosphere.&rft.au=Bhagwat%2C+A+A%3BKeister%2C+D+L&rft.aulast=Bhagwat&rft.aufirst=A&rft.date=1992-01-01&rft.volume=58&rft.issue=5&rft.spage=1490&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; genes; cloning; gene expression; soil; rhizosphere; nodulation; transcription ER - TY - JOUR T1 - Data needs for avian conservation biology: Have we avoided critical research?. AN - 16199283; 2729775 JF - Condor AU - Verner, J AD - USDA Forest Serv., Pacific Southwest Res. Stn., 2081 E. Sierra Ave., Fresno, CA 93710, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 301 EP - 303 VL - 94 IS - 1 SN - 0010-5422, 0010-5422 KW - research programmes KW - Ecology Abstracts KW - Aves KW - conservation KW - D 04671:Birds KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Data+needs+for+avian+conservation+biology%3A+Have+we+avoided+critical+research%3F.&rft.au=Verner%2C+J&rft.aulast=Verner&rft.aufirst=J&rft.date=1992-01-01&rft.volume=94&rft.issue=1&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; conservation ER - TY - JOUR T1 - Short-term effects of Hurricane Gilbert on terrestrial bird populations on Jamaica. AN - 16199239; 2729769 AB - Four months after Hurricane Gilbert we resampled 10 habitats that were sampled previously in December 1987. Overall, we found no change in the total number of species nor in the mean number of individual birds detected. The mean number of individuals declined in three montane habitats (cloud forest, pine plantation, and coffee plantation), where structural damage to tree trunks and branches was often severe, and trees were still defoliated. In the mountains, higher proportions of nectarivores and fruit/seedeaters declined than insectivores. We found increased mean numbers of individuals in two lowland sites (wet limestone forest and mangroves), where structural damage to trees was also severe, but where new foliage was present. Mean numbers of individuals did not change in five other lowland habitats, despite varying levels of vegetation damage. Populations of several species declined in some habitats and increased in others, a pattern consistent with interhabitat migration. JF - Auk AU - Wunderle, JM Jr AU - Lodge, D J AU - Waide, R B AD - Inst. Trop. For., Southern Forest Exp. Stn., USDA Forest Serv., P.O. Box B, Palmer, Puerto Rico 00721 Y1 - 1992 PY - 1992 DA - 1992 SP - 148 EP - 166 VL - 109 IS - 1 SN - 0004-8038, 0004-8038 KW - Jamaica KW - Ecology Abstracts KW - Aves KW - population levels KW - hurricanes KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Short-term+effects+of+Hurricane+Gilbert+on+terrestrial+bird+populations+on+Jamaica.&rft.au=Wunderle%2C+JM+Jr%3BLodge%2C+D+J%3BWaide%2C+R+B&rft.aulast=Wunderle&rft.aufirst=JM&rft.date=1992-01-01&rft.volume=109&rft.issue=1&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; population levels; hurricanes ER - TY - JOUR T1 - Impact of pasture development on winter bird communities in Belize, Central America. AN - 16199161; 2729761 AB - We studied bird use of actively grazed and abandoned (2-4 years) pastures during February 1990 in Belize, where pastures often are maintained by repeated mowing. A total of 46 species was observed in the two pasture types, with 15 species detected in grazed and 39 in abandoned. Species richness for both migrants and residents was lower by >50% in grazed pastures. Overall abundance of birds was lower by nearly 70% in grazed pastures compared with the more structurally diverse abandoned pastures. Based on data from a concurrent study on bird use of forest interior habitat in Belize, 2-4 times more resident species would be expected in nearby broadleaved forests compared to an equal census effort in grazed pastures. In contrast, only about 1.5 times more migrant bird species would be predicted in broadleaved forest interior than in grazed pastures. JF - Condor AU - Saab, V A AU - Petit AD - USDA Forest Serv., Intermt. Res. Stn., 316 E. Myrtle, Boise, ID 83702, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 66 EP - 71 VL - 94 IS - 1 SN - 0010-5422, 0010-5422 KW - Ecology Abstracts KW - Aves KW - migration KW - community composition KW - Belize KW - pasture KW - winter KW - species richness KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Impact+of+pasture+development+on+winter+bird+communities+in+Belize%2C+Central+America.&rft.au=Saab%2C+V+A%3BPetit&rft.aulast=Saab&rft.aufirst=V&rft.date=1992-01-01&rft.volume=94&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Belize; community composition; species richness; migration; pasture; winter ER - TY - JOUR T1 - Are North American populations of gypsy moth (Lepidoptera: Lymantriidae) bimodal?. AN - 16191676; 2728143 AB - Previous studies indicate that North American gypsy moth, Lymantria dispar (L.), populations are driven by a numerically bimodal replacement rate model: N sub(t+1)/N sub(t) = f(N), where f(N) is bimodal, resulting in two equilibrium densities. Under this theory, populations are regulated about a low density equilibrium for many years until some perturbation (usually mass immigration) elevates populations to high densities, where they are regulated about a high-density equilibrium until crashing. In this paper, the evidence for and against numerical bimodality in gypsy moth populations is reviewed. The Melrose Highlands data (egg mass densities at 83 plots in New England from 1910 to 1931) were reexamined. These analyses indicated bimodality in f(N) when data were expressed as yearly means of several plots in a zone approximately equals 30 km in diameter, but there was no clear evidence of bimodality in the dynamics at individual plots. Density fluctuations in these relatively small plots (0.07 ha) were instead dominated by apparently random effects. JF - Environmental Entomology AU - Liebhold, AM AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Morgantown, WV 26505, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 221 EP - 229 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - reviews KW - Lepidoptera KW - Lymantriidae KW - life cycle KW - density dependence KW - population dynamics KW - Lymantria dispar KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Are+North+American+populations+of+gypsy+moth+%28Lepidoptera%3A+Lymantriidae%29+bimodal%3F.&rft.au=Liebhold%2C+AM&rft.aulast=Liebhold&rft.aufirst=AM&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lymantria dispar; Lymantriidae; Lepidoptera; population dynamics; life cycle; reviews; density dependence ER - TY - JOUR T1 - An analysis of the marginal value of cropland and nitrogen fertilizer use under alternative farm programs. AN - 16191526; 2730482 AB - The analysis in this paper is directed at estimating the impact on the marginal value of a crop base acre and on nitrogen fertilizer use of alternative farm programs designed to encourage planting flexibility in response to changing relative agricultural commodity prices. Four policy alternatives are considered: the current farm program, the Normal Crop Acreage option, the triple-base option, and the Lugar-Leahy (USDA) option. Encouraging planting flexibility via the Lugar-Leahy (USDA) option can be an effective way to reduce the excessive application of nitrogen fertilizer. Additionally, an effective farm policy designed to encourage growing crops besides those used to calculate the base acreage should detach any program deficiency payments from the number of program base acres. JF - Applied Mathematical Modelling AU - Huang, Wen-Yuan AU - Uri, N D AD - CED/SAB (Room 1240), USDA, 1301 New York Ave., NW, Washington, DC 20005, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 16 EP - 25 VL - 16 IS - 1 SN - 0307-904X, 0307-904X KW - agriculture KW - environmental impact KW - fertilizers KW - groundwater KW - groundwater pollution KW - mathematical models KW - nitrogen KW - Health & Safety Science Abstracts KW - H SE2.8.2:CHEMICALS (CORROSION) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Mathematical+Modelling&rft.atitle=An+analysis+of+the+marginal+value+of+cropland+and+nitrogen+fertilizer+use+under+alternative+farm+programs.&rft.au=Huang%2C+Wen-Yuan%3BUri%2C+N+D&rft.aulast=Huang&rft.aufirst=Wen-Yuan&rft.date=1992-01-01&rft.volume=16&rft.issue=1&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Applied+Mathematical+Modelling&rft.issn=0307904X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - agriculture; groundwater pollution; nitrogen; fertilizers; environmental impact; mathematical models; groundwater ER - TY - JOUR T1 - Influence of temperature on rate of development and color patterns of queen honey bees (Hymenoptera: Apidae). AN - 16190943; 2728134 AB - The effect of temperature on the rate of development and color patterns of two honey bee queen lines (black and yellow) was examined. The queens completed the postcapping period (last instar and pupal stages) in incubators maintained at temperatures corresponding with the natural range found in the brood nest: 30.5, 33.5, and 35.5 degree C. The black line required significantly fewer accumulated degree-days for development than the yellow line at all temperatures. The queens from both lines had significantly more yellow coloration on the integument when they completed the postcapping period at 35.5 degree C than at 30.5 degree C. These results suggest that brood nest temperatures play a more important role in the rate of development of queen lines and in the phenotypic expression of color patterns than has previously been recognized. JF - Environmental Entomology AU - Spivak, M AU - Zeltzer, A AU - DeGrandi-Hoffman, G AU - Martin, J H AD - Carl Hayden Bee Res. Cent., USDA-ARS, 2000 E. Allen Rd., Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 364 EP - 370 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - air temperature KW - development KW - Apis mellifera KW - queens KW - coloration KW - Hymenoptera KW - Apidae KW - D 04659:Insects KW - Z 05190:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Influence+of+temperature+on+rate+of+development+and+color+patterns+of+queen+honey+bees+%28Hymenoptera%3A+Apidae%29.&rft.au=Spivak%2C+M%3BZeltzer%2C+A%3BDeGrandi-Hoffman%2C+G%3BMartin%2C+J+H&rft.aulast=Spivak&rft.aufirst=M&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=364&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Apis mellifera; Apidae; Hymenoptera; development; coloration; air temperature; queens ER - TY - JOUR T1 - Fire regimes for pine-grassland communities in the southeastern United States. AN - 16190926; 2722938 AB - Four combinations of season and frequency of burning were applied in Coastal Plain loblolly pine stands over a 43-year period. Overstory species composition and growth were unaffected by treatment. Above-ground portions of small hardwoods (less than 12.5 cm d.b.h.) were killed and replaced by numerous sprouts under periodic summer, periodic winter, and annual winter burning regimes. With annual summer burning, small hardwoods and shrubs were killed and replaced by vegetation typical of grassland communities. Grasses and forbs also dominated the understory of annual winter burns but numerous hardwood sprouts survived. Study results emphasize that frequent burning over a long period is needed to create and maintain the pine-grassland community observed by the first European settlers of the southeast. JF - Forest Ecology and Management AU - Waldrop, T A AU - White, D L AU - Jones, S M AD - USDA Forest Serv., Southeastern Forest Exp. Stn., 239 Lehotsky Hall, Clemson, SC 29634-1003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 195 EP - 210 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - forests KW - species composition KW - Pinus taeda KW - grasslands KW - seasonal variations KW - burning KW - USA, Southeast KW - growth KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16190926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Fire+regimes+for+pine-grassland+communities+in+the+southeastern+United+States.&rft.au=Waldrop%2C+T+A%3BWhite%2C+D+L%3BJones%2C+S+M&rft.aulast=Waldrop&rft.aufirst=T&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus taeda; USA, Southeast; burning; species composition; growth; seasonal variations; grasslands; forests ER - TY - JOUR T1 - Effects of even-aged management on forest birds at northern hardwood stand interfaces. AN - 16186859; 2722851 AB - Breeding birds were counted along transects across edges of even-aged northern hardwood stands in the White Mountain National Forest, New Hampshire, U.S.A. Two replicate transects across each of 7 edge types representing 3 classes of contrast (abrupt, intermediate, and subtle) were sampled during June 1983-1985 to define species assemblages at stand edges and estimate the width and longevity of functional edges under even-aged management. Of 52 bird species, 28 occurred across all three classes of edges, but no unique species or assemblages were evident at the edges between stands. Across edges between young stands, bird species richness declined linearly from seedling stand interior, but no differences in cumulative bird species richness by edge contrast type were found. The proportion of edge-detected species was higher in the younger stand in all edge contrast types except the most subtle edge type between mature stands. JF - Forest Ecology and Management AU - DeGraaf, R M AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Univ. Massachusetts, Amherst, MA 01003, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 95 EP - 110 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - Aves KW - forest management KW - breeding KW - species richness KW - edge effect KW - D 04700:Management KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16186859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Effects+of+even-aged+management+on+forest+birds+at+northern+hardwood+stand+interfaces.&rft.au=DeGraaf%2C+R+M&rft.aulast=DeGraaf&rft.aufirst=R&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; forest management; species richness; edge effect; breeding ER - TY - JOUR T1 - Mating by the fall armyworm (Lepidoptera: Noctuidae): Frequency, duration, and effect of temperature. AN - 16184634; 2728133 AB - Mating by the fall armyworm, Spodoptera frugiperda (J.E. Smith), was studied in the laboratory. With the night cycle beginning at 2100 hours, 73-84% of the matings occurred between 2200 and 0300 hours. However, mating pairs were observed throughout the night. Most matings (80%) lasted longer than 45 min. Mean duration of mating averaged 130 min. Based on the number of spermatophores in the bursa copulatrix of mated females, female moths mated a mean of 3.7 times (range, 0-11) during their life span. Males mated a mean of 6.7 times (range, 0-15) during their life span. Matings by males were most frequent during the first three nights after their emergence. Although males mated throughout most of their adult life, the incidence of mating declined as the moths aged. The number of matings peaked at 25 and 30 degree C with little mating at 10 or 15 degree C. JF - Environmental Entomology AU - Simmons, A M AU - Marti, OG Jr AD - Insect Biol. and Popul. Manage. Res. Lab., USDA-ARS, Tifton, GA 31793-0748, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 371 EP - 375 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - photoperiod KW - Entomology Abstracts; Ecology Abstracts KW - air temperature KW - Spodoptera frugiperda KW - Noctuidae KW - mating KW - Lepidoptera KW - D 04659:Insects KW - Z 05190:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Mating+by+the+fall+armyworm+%28Lepidoptera%3A+Noctuidae%29%3A+Frequency%2C+duration%2C+and+effect+of+temperature.&rft.au=Simmons%2C+A+M%3BMarti%2C+OG+Jr&rft.aulast=Simmons&rft.aufirst=A&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=371&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Spodoptera frugiperda; Noctuidae; Lepidoptera; mating; air temperature ER - TY - JOUR T1 - Effects of time of day, adult food, and host fruit on incidence of calling by male Caribbean fruit flies (Diptera: Tephritidae). AN - 16184280; 2731398 AB - Male Caribbean fruit flies, Anastrepha suspensa (Loew), exhibited two distinct calling periods under greenhouse conditions, one within the first hour of daylight and another during mid to late afternoon. In the laboratory, males called only during the afternoon. In the greenhouse, this afternoon calling period was not observed when flies were deprived of food for that day. High rates of calling were observed in the afternoon, if flies were provided either a mixture of hydrolyzed torula yeast and cane sugar, or pure sucrose, but not if provided yeast alone, or deprived of food. Deprivation of sugar for 8 h resulted in a 30% reduction in calling rates in the afternoon, whereas such deprivation for 23 h (from late afternoon to midafternoon) nearly eliminated calling during that period. JF - Environmental Entomology AU - Landolt, P J AU - Sivinski, J AD - Insect Attractants, Behav., and Basic Biol. Res. Lab., USDA-ARS, Gainesville, FL 32604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 382 EP - 387 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - Chemoreception Abstracts; Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - environmental conditions KW - calling behavior KW - Tephritidae KW - Anastrepha suspensa KW - Diptera KW - sex pheromone KW - D 04659:Insects KW - Z 05194:Communication KW - Y 25363:Insects KW - R 18051:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Effects+of+time+of+day%2C+adult+food%2C+and+host+fruit+on+incidence+of+calling+by+male+Caribbean+fruit+flies+%28Diptera%3A+Tephritidae%29.&rft.au=Landolt%2C+P+J%3BSivinski%2C+J&rft.aulast=Landolt&rft.aufirst=P&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha suspensa; Tephritidae; Diptera; calling behavior; sex pheromone; environmental conditions ER - TY - JOUR T1 - Interaction of wild males and laboratory-adapted females of the Mexican fruit fly (Diptera: Tephritidae) in natural habitats. AN - 16167842; 2712760 AB - Despite > 40 yr of ecological and behavioral research on reproductive interactions involved in sterile insect release programs, experimental measurement of the intensity of intermale competition for mates and the role of sterile females in these programs has rarely been addressed. Experiments described in this study were designed to evaluate these factors. Virgin females from a mass-rearing strain (mass reared for 36 yr) of the Mexican fruit fly, Anastrepha ludens (Loew), were released and subsequently recaptured along with native Mexican fruit flies in natural habitats in Nuevo Leon, Mexico. Tests were carried out at six locations and replicated four times. Recaptured females were dissected to determine mating status. Data were analysed to determine whether the released females mated with native males, and to evaluate the influence of test site, test date, and wild male and female density on rates of recapture of the released females and their mating status. Results showed that 5-50% of the recaptured females mated with native males. This indicates that released females (even from a strain adapted to mass rearing) may occupy a significant amount of native male reproductive effort and that males in native populations have excess reproductive capacity. JF - Environmental Entomology AU - Mangan, R L AU - Moreno, D S AU - Sanchez, M AD - Crop Quality and Fruit Insects Res., USDA-ARS, 2301 S. International Blvd., Weslaco, TX 78596, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 294 EP - 300 VL - 21 IS - 2 SN - 0046-225X, 0046-225X KW - reproduction KW - release KW - females KW - Entomology Abstracts; Ecology Abstracts KW - Anastrepha ludens KW - biological control KW - sterility KW - Tephritidae KW - breeding success KW - Diptera KW - D 04659:Insects KW - Z 05207:Agricultural & general applied entomology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Interaction+of+wild+males+and+laboratory-adapted+females+of+the+Mexican+fruit+fly+%28Diptera%3A+Tephritidae%29+in+natural+habitats.&rft.au=Mangan%2C+R+L%3BMoreno%2C+D+S%3BSanchez%2C+M&rft.aulast=Mangan&rft.aufirst=R&rft.date=1992-01-01&rft.volume=21&rft.issue=2&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anastrepha ludens; Tephritidae; Diptera; biological control; sterility; breeding success ER - TY - JOUR T1 - Reclaiming fiber from newsprint dry methods. AN - 16155902; 2702790 AB - Economical and environmental considerations suggest the desirability of recycling old newspapers to newsprint in urban areas, using methods with reduced demand for process water. In bench-scale experiments, we successfully dry-fiberized old newspapers at moisture contents from 2 to 52%. Handsheets of acceptable appearance were made from dry-processed fiber by both air-laid and water-laid processes. Water-laid handsheets of dry-fiberized furnish had less strength than did handsheets from wet-processed fiber. Air-laid handsheets yielded lower density and has less tensile strength compared to water-laid handsheets of the same fiber. Methods for increasing tensile strength are suggested. JF - J. HAZARDOUS MATER. AU - Gunderson, DE AU - Scott, C T AU - Gleisner, R L AU - Harten, T M AD - USDA Forest Serv., Forest Prod. Lab., One Gifford Pinchot Dr., Madison, WI 53705-2398, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 297 EP - 311 VL - 29 IS - 2 KW - economics KW - newsprint KW - Health & Safety Science Abstracts; Pollution Abstracts KW - fibers KW - recycling KW - urban areas KW - H SI6.25:WASTE DISPOSAL KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16155902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J.+HAZARDOUS+MATER.&rft.atitle=Reclaiming+fiber+from+newsprint+dry+methods.&rft.au=Gunderson%2C+DE%3BScott%2C+C+T%3BGleisner%2C+R+L%3BHarten%2C+T+M&rft.aulast=Gunderson&rft.aufirst=DE&rft.date=1992-01-01&rft.volume=29&rft.issue=2&rft.spage=297&rft.isbn=&rft.btitle=&rft.title=J.+HAZARDOUS+MATER.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - recycling; fibers; urban areas ER - TY - JOUR T1 - Predicting digestible protein and digestible dry matter in tannin-containing forages consumed by ruminants. AN - 16150468; 2699138 AB - Equations for predicting digestible protein and digestible dry matter on the basis of laboratory analytical techniques (Robbins at el. 1987a, b) were tested with in vivo digestion trials using black-tailed deer (Odocoileus hemionus sitkensis ). Leaves of seven natural, tannin-containing forages and twigs from one browse species were fed fresh in total collection digestion trials. The equation for estimating digestible protein was based on the plant's crude protein content and a measure of the tannin's protein-precipitating capacity. The equation for estimating digestible dry matter was based on a measure of tanning astringency and the concentrations of neutral detergent fiber, lignin, cutin, and biogenic silica. Both equations predicted in vivo results accurately, although a slight modification of the laboratory technique was recommended for determining neutral detergent fiber. Sodium sulfite should be used when analyzing tannin-containing forb and shrub leaves and omitted for relatively tannin-free forages. JF - Ecology AU - Hanley, T A AU - Robbins, C T AU - Hagerman, A E AU - McArthur, C AD - USDA Forest Serv., Pacific Northwest Res. Stn., For. Sci. Lab., P.O. Box 20909, Juneau, AK 99802-0909, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 537 EP - 541 VL - 73 IS - 2 SN - 0012-9658, 0012-9658 KW - digestibility KW - models KW - protein KW - tannin KW - Ecology Abstracts KW - Odocoileus hemionus sitkensis KW - dry matter KW - D 04672:Mammals KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16150468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Predicting+digestible+protein+and+digestible+dry+matter+in+tannin-containing+forages+consumed+by+ruminants.&rft.au=Hanley%2C+T+A%3BRobbins%2C+C+T%3BHagerman%2C+A+E%3BMcArthur%2C+C&rft.aulast=Hanley&rft.aufirst=T&rft.date=1992-01-01&rft.volume=73&rft.issue=2&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Odocoileus hemionus sitkensis; dry matter ER - TY - JOUR T1 - New approach to mark insects for feeding and dispersal studies. AN - 16146582; 2697977 AB - This study examines the feasibility of marking Lygus hesperus Knight adults externally by submersion in rabbit immunoglobulin G (IgG) solution. Rabbit IgG retention time was measured in the laboratory on insects submerged in an IgG solution. We marked insects with rabbit IgG and ran an enzyme-linked immunosorbent assay (ELISA) with its complementary antibody (antirabbit IgG). We concurrently ran an ELISA assay using the same samples against an egg-specific L. hesperus monoclonal antibody (MAb) to measure the presence of L. hesperus egg antigen in the insect. A previously developed egg-specific MAb to L. hesperus enabled us to assay simultaneously adult females (which possess the egg antigen) and adult males for the presence of L. hesperus egg antigen. JF - Environmental Entomology AU - Hagler, J R AU - Cohen, A C AU - Bradley-Dunlop, D AU - Enriquez, F J AD - Honey Bee Biol., and Biocontrol Insects Lab., USDA-ARS, Tucson, AZ 85719, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 20 EP - 25 VL - 21 IS - 1 SN - 0046-225X, 0046-225X KW - Lygus hesperus KW - monoclonal antibodies KW - feeding behaviour KW - Heteroptera KW - Animal Behavior Abstracts; Ecology Abstracts; Entomology Abstracts KW - Miridae KW - dispersal KW - enzyme-linked immunosorbent assay KW - marking KW - Z 05204:Dispersal & migration KW - D 04659:Insects KW - Z 05199:Feeding KW - D 04002:Surveying and remote sensing KW - Y 25653:Insects KW - Y 25863:Insects KW - Z 05156:Techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16146582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=New+approach+to+mark+insects+for+feeding+and+dispersal+studies.&rft.au=Hagler%2C+J+R%3BCohen%2C+A+C%3BBradley-Dunlop%2C+D%3BEnriquez%2C+F+J&rft.aulast=Hagler&rft.aufirst=J&rft.date=1992-01-01&rft.volume=21&rft.issue=1&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Miridae; marking; dispersal; enzyme-linked immunosorbent assay ER - TY - JOUR T1 - Substitution of full-fat soybeans for commercial soybean meal in diets for shrimp, Penaeus vannamei . AN - 16145119; 2689620 AB - Five isonitrogenous, isocaloric diets containing 0, 8.95, 17.90, 26.85, or 35.8% double dry-extruded full-fat soybeans (FFSB) as replacement for 0, 7, 14, 21, and 28% commercial solvent-extracted soybean meal (SBM) were fed to juvenile Penaeus vannamei to satiation six times per day for 70 days. The water stability of pellets tested at 4 and 8 hours were not significantly (P > 0.05) different, although the diet with the highest level of FFSB had the lowest water stability consistently. Weight gains, survival, dry matter feed intake, feed conversion, and protein efficiency ratio were essentially the same for all diets. Whole body percentages of moisture, fat, crude protein, and ash were also similar for shrimp in all treatments. JF - Journal of Applied Aquaculture AU - Lim, C AU - Dominy, W AD - USDA-ARS-PW, Tropical Aquaculture Res. Unit, Oceanic Inst., Makapuu Point, P.O. Box 25280, Honolulu, HI 96825, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 35 EP - 46 VL - 1 IS - 3 SN - 1045-4438, 1045-4438 KW - Penaeus vannamei KW - diets KW - full-fat soybeans KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA Aquaculture Abstracts KW - feeding experiments KW - Marine KW - artificial feeding KW - animal nutrition KW - shrimp culture KW - feed KW - Q3 08583:Shellfish culture KW - Q1 08583:Shellfish culture KW - O 5060:Aquaculture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16145119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Aquaculture&rft.atitle=Substitution+of+full-fat+soybeans+for+commercial+soybean+meal+in+diets+for+shrimp%2C+Penaeus+vannamei+.&rft.au=Lim%2C+C%3BDominy%2C+W&rft.aulast=Lim&rft.aufirst=C&rft.date=1992-01-01&rft.volume=1&rft.issue=3&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Aquaculture&rft.issn=10454438&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - feeding experiments; animal nutrition; artificial feeding; feed; shrimp culture; Marine ER - TY - JOUR T1 - Relations between activity of Dendroctonus rufipennis Kirby on Lutz spruce and blue stain associated with Leptographium abietinum (Peck) Wingfield. AN - 16140630; 2683767 AB - Pruning and girdling treatments to frontalin-baited Lutz spruce (Picea x lutzii Little) trees were evaluated in 1987 and 1988 for their effect on five responses: number of spruce beetle (Dendroctonus rufipennis Kirby) attacks, length of egg galleries, percent of stem wood perimeter and area visibly affected by blue stain, and percent of cambial discoloration. All responses decreased significantly with sample height both in 1987 and 1988. Treatment generally had little or no effect on either spruce beetle activity or blue stain development; the only exception was the effect of treatment on percent cambial discoloration in 1987. For both years, spruce beetle activity and blue stain development were highly interrelated. Number of successful attacks was more highly correlated with the three blue-stain measures than was total number of attacks. For both years, gallery length was more highly correlated with the blue-stain measures than was the number of attacks. JF - Forest Ecology and Management AU - Reynolds, K M AD - USDA Forest Serv., Pacific Northwest Res. Stn., Inst. Northern Forestry, 308 Tanana Dr., Fairbanks, AK 99775-5500, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 71 EP - 86 VL - 47 IS - 1-4 SN - 0378-1127, 0378-1127 KW - pruning KW - Leptographium abietinum KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts KW - control programs KW - Scolytidae KW - Coleoptera KW - Dendroctonus rufipennis KW - Picea lutzii KW - K 03089:Fungi: plant KW - Z 05207:Agricultural & general applied entomology KW - A 01045:Diseases & treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16140630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Relations+between+activity+of+Dendroctonus+rufipennis+Kirby+on+Lutz+spruce+and+blue+stain+associated+with+Leptographium+abietinum+%28Peck%29+Wingfield.&rft.au=Reynolds%2C+K+M&rft.aulast=Reynolds&rft.aufirst=K&rft.date=1992-01-01&rft.volume=47&rft.issue=1-4&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Picea lutzii; Dendroctonus rufipennis; Scolytidae; Coleoptera; control programs ER - TY - JOUR T1 - Nitrogenase activity, nitrogen fixation, and nitrogen inputs by lupines at Mount St. Helens. AN - 16126297; 2678561 AB - We measured the timing and magnitude of nitrogenase activity and N sub(2) fixation by lupines colonizing early successional volcanic sites at Mount St. Helens. Nitrogenase activity (measured by acetylene reduction) in Lupinus lepidus) growing at a pyroclastic site exhibited significant diurnal trends, with lowest ethylene evolution rates at night. Nitrogenase activity also followed seasonal trends, with high rates in June, very low levels in August, the dry warm part of the season, and a partial recovery of nitrogenase activities measured at several sites suggested that rates of N sub(2) fixation were highest in L. lepidus) growing at disturbed low N sites. Adult lupine C and N composition also varied during the growing season, with trends correlated with seasonal patterns of nitrogenase activity. JF - Ecology AU - Halvorson, J J AU - Franz, E H AU - Smith, J L AU - Black, R A AD - USDA-ARS, Land Manage. and Water Conserv. Unit, 215 Johnson Hall-6421, Washington State Univ., Pullman, WA 99164, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 87 EP - 98 VL - 73 IS - 1 SN - 0012-9658, 0012-9658 KW - nitrogen fixation KW - nitrogenase KW - Ecology Abstracts KW - USA, Washington, Mount St. Helens KW - Lupinus lepidus KW - enzymatic activity KW - D 04637:Legumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Nitrogenase+activity%2C+nitrogen+fixation%2C+and+nitrogen+inputs+by+lupines+at+Mount+St.+Helens.&rft.au=Halvorson%2C+J+J%3BFranz%2C+E+H%3BSmith%2C+J+L%3BBlack%2C+R+A&rft.aulast=Halvorson&rft.aufirst=J&rft.date=1992-01-01&rft.volume=73&rft.issue=1&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lupinus lepidus; USA, Washington, Mount St. Helens; enzymatic activity ER - TY - JOUR T1 - Competition for resources between understory vegetation and overstory Pinus ponderosa in northeastern Oregon. AN - 16125704; 2678409 AB - The objective of this research was to determine which environmental resources, light, water, and/or nutrients, control understory plant production in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental design, with three 5.0-ha blocks, four treatments, and 44 plots, was established in the summer of 1985. Twenty plots (4 x 4 m) were trenched (root-reduction treatment) approximately equals 1 m in depth, and 24 non-trenched plots (root-control treatment) were used to assess the effects of root competition of overstory trees on understory plants. Trees were commercially thinned (canopy-reduction treatment) in half of each block (2.5 ha) during the winter and early spring of 1986, from a density of 345 to 148 trees/ha to increase light levels to the understory. Thinning significantly increased photosynthetically active radiation, decreased midday relative humidity, and increased midday air temperatures. JF - Ecological Applications AU - Riegel, G M AU - Miller, R F AU - Krueger, W C AD - USDA Forest Serv., Silvicult. Lab., 1027 N.W. Trenton Ave., Bend, OR 97701, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 71 EP - 85 VL - 2 IS - 1 SN - 1051-0761, 1051-0761 KW - competition KW - Ecology Abstracts KW - forests KW - Pinus ponderosa KW - understory KW - resource utilization KW - USA, Oregon KW - production KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16125704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Competition+for+resources+between+understory+vegetation+and+overstory+Pinus+ponderosa+in+northeastern+Oregon.&rft.au=Riegel%2C+G+M%3BMiller%2C+R+F%3BKrueger%2C+W+C&rft.aulast=Riegel&rft.aufirst=G&rft.date=1992-01-01&rft.volume=2&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus ponderosa; USA, Oregon; production; resource utilization; understory; forests ER - TY - JOUR T1 - Influence of thermal ecology on the mycosis of a rangeland grasshopper. AN - 16123758; 2675403 AB - The clearwinged grasshopper, Camnula pellucida , exploits incident solar radiation to raise internal body temperatures above ambient levels. Under adequate temperature and light conditions, grasshopper body temperatures may exceed air temperatures by 10 degree -15 degree C with both nymphs and adults preferring to thermoregulate near 40 degree C, their optimal temperature for development. Comparison of age-specific phenology data collected from field sites with projections from computer simulation studies on grasshopper development indicated that incident solar radiation can highly accelerate maturation of grasshoppers. Also, prolonged exposure to temperatures above 35 degree C is beneficial to grasshoppers, as it is detrimental to the fungal pathogen Entomophaga grylli (US pathotype I), which is a major cause of natural mortality in many species. E. grylli protoplasts grew little or not at all if incubated at a constant 35 degree C in tissue culture medium. JF - Ecology AU - Carruthers, R I AU - Larkin, T S AU - Firstencel, H AU - Feng, Z AD - USDA-Agric. Res. Serv., Plant Prot. Res. Unit, Cornell Univ., Ithaca, NY 14853, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 190 EP - 204 VL - 73 IS - 1 SN - 0012-9658, 0012-9658 KW - body temperature KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - Camnula pellucida KW - thermoregulation KW - mycosis KW - Orthoptera KW - solar radiation KW - Entomophaga grylli KW - D 04659:Insects KW - Z 05182:Pathology KW - K 03088:Fungi: animal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16123758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Influence+of+thermal+ecology+on+the+mycosis+of+a+rangeland+grasshopper.&rft.au=Carruthers%2C+R+I%3BLarkin%2C+T+S%3BFirstencel%2C+H%3BFeng%2C+Z&rft.aulast=Carruthers&rft.aufirst=R&rft.date=1992-01-01&rft.volume=73&rft.issue=1&rft.spage=190&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Camnula pellucida; Entomophaga grylli; Orthoptera; thermoregulation; solar radiation; mycosis ER - TY - JOUR T1 - Combinations of environmental factors and simulated sunlight affecting activity of inclusion bodies of the Heliothis (Lepidoptera: Noctuidae) nucleopolyhedrosis virus. AN - 16121523; 2675287 AB - When polyhedral inclusion bodies (PIB) of the singly embedded nucleopolyhedrosis virus of Heliothis, Baculovirus heliothis (HzSNPV), were exposed in water to simulated sunlight, there was about a 90% loss of its original viral activity, and the PIB were approximately equals 3 times more sensitive than dry PIB. The pH (at 3, 6, or 9) of the suspension had no significant effect on the extent of inactivation of PIB by simulated sunlight. Temperature of exposure (10, 22, 35, or 50 degree C) also had no effect on sensitivity of PIB exposed to simulated sunlight. Normally encountered field temperatures or pH, or both, coupled with exposure to sunlight, should not adversely affect the stability of PIB of HzSNPV. Presence of free water, however, can significantly increase the extent of PIB inactivation by sunlight. JF - Environmental Entomology AU - Ignoffo, C M AU - Garcia, C AD - Biol. Control Insects Res. Lab., USDA-ARS, Columbia, MO 65205, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 210 EP - 213 VL - 21 IS - 1 SN - 0046-225X, 0046-225X KW - Heliothis KW - Lepidoptera KW - Noctuidae KW - environmental factors KW - inclusion bodies KW - nuclear polyhedrosis virus KW - sunlight KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Virology & AIDS Abstracts; Entomology Abstracts KW - A 01014:Others KW - V 22160:Viral infections of invertebrates KW - W 30513:Pest control KW - Z 05207:Agricultural & general applied entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16121523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Entomology&rft.atitle=Combinations+of+environmental+factors+and+simulated+sunlight+affecting+activity+of+inclusion+bodies+of+the+Heliothis+%28Lepidoptera%3A+Noctuidae%29+nucleopolyhedrosis+virus.&rft.au=Ignoffo%2C+C+M%3BGarcia%2C+C&rft.aulast=Ignoffo&rft.aufirst=C&rft.date=1992-01-01&rft.volume=21&rft.issue=1&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - nuclear polyhedrosis virus; Noctuidae; Lepidoptera; environmental factors; sunlight; inclusion bodies ER - TY - JOUR T1 - Interaction of ruminal bacteria in the production and utilization of maltooligosaccharides from starch. AN - 16103910; 2654958 AB - The degradation and utilization of starch by three amylolytic and one nonamylolytic species of ruminal bacteria were studied. Pure cultures of Streptococcus bovis JB1, Butyrivibrio fibrisolvens 49, and Bacteroides ruminicola D31d rapidly hydrolyzed starch and maltooligosaccharides accumulated. The major starch hydrolytic products detected in S. bovis cultures were glucose, maltose, maltotriose, and maltotetraose. In addition to these oligosaccharides, B. fibrisolvens cultures produced maltopentaose. The products of starch hydrolysis by B. ruminicola were even more complex, yielding glucose through maltotetraose, maltohexaose, and maltoheptaose but little maltopentaose. JF - Applied and Environmental Microbiology AU - Cotta, MA AD - Ferment. Biochem. Unit, Natl. Cent. Agric. Util. Res., USDA Agric. Res. Serv., 1815 N. University St., Peoria, IL 61604, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 48 EP - 54 VL - 58 IS - 1 SN - 0099-2240, 0099-2240 KW - Streptococcus bovis KW - production KW - Bacteroides ruminicola KW - starch KW - oligosaccharides KW - Butyrivibrio fibrisolvens KW - hydrolysis KW - rumen microorganisms KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - J 02730:Carbohydrates KW - W 30406:Carbohydrates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16103910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Interaction+of+ruminal+bacteria+in+the+production+and+utilization+of+maltooligosaccharides+from+starch.&rft.au=Cotta%2C+MA&rft.aulast=Cotta&rft.aufirst=MA&rft.date=1992-01-01&rft.volume=58&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Butyrivibrio fibrisolvens; hydrolysis; rumen microorganisms ER - TY - CONF T1 - Antioxidants and growth regulators counter the effects of O sub(3) and SO sub(2) in crop plants. AN - 16103390; 2659894 AB - Antioxidant compounds such as ethylenediurea (EDU); N-(2-(2-oxo-l-imidazolidinyl) ethyl)-N'-phenylurea have been found to be effective in suppressing O sub(3)-induced leaf injury. Gibberellic acid (GA) inhibitors such as paclobutrazol, tetcyclaics and flurprimidol suppress visible SO sub(2)-induced injury. Antioxidant compounds are relatively ineffective in protecting plants from SO sub(2)-induced injury, while GA inhibitors are ineffective in protecting plants from O sub(3) injury. EDU and GA inhibitors do not alter the stomatal behavior, however they can induce resistance to air pollutants stress. Further-more EDU and paclobutrazol (PP sub(333)) do not alter foliar membrane lipid composition. EDU does not alter polyamine composition. This suggests that the mechanisms of plant tolerance to air pollutant exposure is probably biochemical rather than biophysical. Free radical scavenging enzymes or endogenous antioxidant compounds are more important than stomatal restriction of pollutant diffusion to the sensitive leaf mesophyll sites. JF - Agriculture, Ecosystems & Environment AU - Lee, E H AU - Kramer, G F AU - Rowland, R A AU - Agrawal, M Y1 - 1992 PY - 1992 DA - 1992 SP - 99 EP - 106 VL - 38 IS - 1-2 KW - ozone KW - sulphur dioxide KW - ethylenediurea KW - air pollutants KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - plants KW - enzymes KW - crops KW - H SE3.20:AIR POLLUTION/AIR QUALITY KW - R2 23040:Biological KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16103390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Antioxidants+and+growth+regulators+counter+the+effects+of+O+sub%283%29+and+SO+sub%282%29+in+crop+plants.&rft.au=Lee%2C+E+H%3BKramer%2C+G+F%3BRowland%2C+R+A%3BAgrawal%2C+M&rft.aulast=Lee&rft.aufirst=E&rft.date=1992-01-01&rft.volume=38&rft.issue=1-2&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Zone effects on watermelon plants at the Ebro Delta (Spain): Symptomatology. AN - 16102837; 2659831 AB - Symptoms thought to be of ozone (O sub(3)) injury were first observed at the Migiorn farm on the Ebro Delta in 1976. Since then, O sub(3) symptoms have been observed every growing season, including 1990. In 1987 the first account of the suspected symptoms was published by Salleras. In order to confirm the cause of the symptoms and to determine the effects on crops, an experimental field with open-top chambers was established on the farm in 1988. There were three treatments: ambient air (AA), charcoal-filtered air (CF) and non-filtered plots (NF), with five replicates each. Visible injury was followed during the growing season and the symptoms were much less developed in the CF treatment than in AA or NF treatments. It was concluded from these observations, and data on ozone concentrations that the Spanish Mediterranean coast has a significant air pollution problem. JF - Agriculture, Ecosystems & Environment AU - Reinert, R AU - Sanchez, B AU - Salleras, J M AU - Bermejo, V AU - Ochoa, MJ AU - Tarruel, A Y1 - 1992 PY - 1992 DA - 1992 SP - 41 EP - 49 VL - 38 IS - 1-2 KW - ozone KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Citrullus vulgaris KW - Spain KW - plants KW - air pollution KW - H SE3.20:AIR POLLUTION/AIR QUALITY KW - P 0000:AIR POLLUTION KW - P 5000:LAND POLLUTION KW - H SE2.20:CROP CONTAMINATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16102837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Zone+effects+on+watermelon+plants+at+the+Ebro+Delta+%28Spain%29%3A+Symptomatology.&rft.au=Reinert%2C+R%3BSanchez%2C+B%3BSalleras%2C+J+M%3BBermejo%2C+V%3BOchoa%2C+MJ%3BTarruel%2C+A&rft.aulast=Reinert&rft.aufirst=R&rft.date=1992-01-01&rft.volume=38&rft.issue=1-2&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Immune system of channel catfish: An overture on immunity to Edwardsiella ictaluri AN - 15682056; 3969665 AB - Edwardsiella ictaluri is a gram negative rod that causes enteric septicemia of catfish (ESC). The E. ictaluri disease complex includes acute and chronic ESC. One of the most economically important diseases of channel catfish, Ictalurus punctatus, ESC is difficult to control. Although the bacterium is usually susceptible to antibiotics, resistant strains are emerging. Immunization is a more attractive approach to control. Vaccine efficacy is not well documented, in part due to a lack of basic information about immune system components and their interactions after E. ictaluri infection. Channel catfish vaccinated by immersion in E. ictaluri bacterin are only partly protected against ESC. Specific antibody responses are poor in the vaccinates. E. ictaluri infection causes both humoral and cell-mediated immune responses. A vaccine that stimulates both types of immunity may provide better ESC immunity. Diagnosis of E. ictaluri infection is accomplished by detection of specific antibody. Recently the discovery of an immunodominant E. ictaluri exoantigen is allowing the development of accurate and rapid diagnostic tests that can detect infection before clinical ESC occurs. Health management programs for food animals depend on serological tests to detect early infections and carriers; the value of these tests is now realized in the channel catfish industry. This review documents factors that influence the immune responses of channel catfish. These factors include the influence of water temperature, seasons, stressful conditions, diet, and E. ictaluri carrier status (DBO). JF - Annual Review of Fish Diseases AU - Klesius, P AD - Agricultural Research Service, USDA, Animal, Parasite Research Laboratory, Auburn, AL 36830, USA Y1 - 1992 PY - 1992 DA - 1992 SP - 325 EP - 338 VL - 2 SN - 0959-8030, 0959-8030 KW - defense mechanisms KW - enteric septicemia KW - septicemia KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - fish diseases KW - Edwardsiella ictaluri KW - fish culture KW - freshwater aquaculture KW - immunity KW - Freshwater KW - bacterial diseases KW - Ictalurus punctatus KW - vaccination KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/15682056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Review+of+Fish+Diseases&rft.atitle=Immune+system+of+channel+catfish%3A+An+overture+on+immunity+to+Edwardsiella+ictaluri&rft.au=Klesius%2C+P&rft.aulast=Klesius&rft.aufirst=P&rft.date=1992-01-01&rft.volume=2&rft.issue=&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Annual+Review+of+Fish+Diseases&rft.issn=09598030&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fish diseases; fish culture; immunity; freshwater aquaculture; bacterial diseases; vaccination; Edwardsiella ictaluri; Ictalurus punctatus; Freshwater ER - TY - JOUR T1 - Responses of microbial populations in the rhizosphere to deposition of simulated acidic rain onto foliage and/or soil AN - 13710080; S199342818 AB - Simulated rain solutions were applied to seedlings of a sorghum X sudangrass hybrid in pots of non-sterile soil-sand mix on 16 d during a 6 week period. Solutions were adjusted with sulphuric and nitric acid to pH 4.9, 4.2, 3.5 or 2.8 and were applied as simulated rain to foliage and soil, foliage only or soil only. When applied to foliage alone, there was no effect on plant biomass or microbial population densities in the rhizosphere. However when the solution penetrated the soil, plant growth was stimulated and rhizosphere microbial populations increased 3- to 8-fold with increased solution acidity. There are 63 references. JF - Environmental Pollution AU - Shafer AD - USDA, North Carolina State University, Raleigh Y1 - 1992 PY - 1992 DA - 1992 SP - 267 EP - 278 VL - 76 IS - 3 SN - 0269-7491, 0269-7491 KW - Modelling (-general-) KW - Plants (see also aquatic macrophytes, grps below) KW - Aqualine Abstracts KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13710080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Responses+of+microbial+populations+in+the+rhizosphere+to+deposition+of+simulated+acidic+rain+onto+foliage+and%2For+soil&rft.au=Shafer&rft.aulast=Shafer&rft.aufirst=&rft.date=1992-01-01&rft.volume=76&rft.issue=3&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Relationship between water quality, phytoplankton community and off-flavours in channel catfish (Ictalurus punctatus) production ponds AN - 13692802; S199446066 AB - Off-flavour in the flesh of channel catfish (Ictalurus punctatus) and in the pond water was studied under 2 recirculation regimens in 12 0.04 ha ponds stocked with 15,000 fingerling channel catfish per ha. Water was recirculated through a biological filter by centrifugal pumping for 24 h in 6 ponds and for 12 h in the other 6 ponds. In each pond, food quality, phytoplankton populations, and geosmin and 2-methylisoborneol (MIB) concentrations were evaluated weekly during the last 8 weeks of the growing season (mid-September to early November). Food quality was determined from average taste panel scorers for earthy-musty flavours. Objectionable off-flavour was detected by the trained panel in 13.5 per cent of the 96 sample units (ponds X weeds). Levels of geosmin and MIB in the water ranged from 0.000 to 0.097 ug per litre for geosmin (excepting 1 measurement of 0.649 ug per litre), and 0.039 to 0.356 ug per litre for MIB. Off-flavour scores and concentrations of geosmin and MIB in water did not significantly differ between the 2 pond recirculation treatments. Objectionable off-flavour scores (greater than 1.0) were significantly correlated (P less than 0.05) with the prior week's MIB values and degree of Oscillatoria domination. MIB levels and Oscillatoria dynamics leading to dominance conditions were indicative of off-flavour problems in subsequent weeks and may be used in a predictive manner. JF - Aquaculture AU - Lorio, W J AU - Perschbacher, P W AU - Johnsen, P B AD - USDA Agricultural Research Service, Tishomingo, Okla. Y1 - 1992 PY - 1992 DA - 1992 SP - 285 EP - 292 VL - 106 IS - 3/4 SN - 0044-8486, 0044-8486 KW - Equipment KW - Fish (see also individual groups listed below) KW - Flesh KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13692802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquaculture&rft.atitle=Relationship+between+water+quality%2C+phytoplankton+community+and+off-flavours+in+channel+catfish+%28Ictalurus+punctatus%29+production+ponds&rft.au=Lorio%2C+W+J%3BPerschbacher%2C+P+W%3BJohnsen%2C+P+B&rft.aulast=Lorio&rft.aufirst=W&rft.date=1992-01-01&rft.volume=106&rft.issue=3%2F4&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Aquaculture&rft.issn=00448486&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Effects of farnesol and the off-flavor derivative geosmin on Streptomyces tendae. AN - 72659234; 1785920 AB - Effects of the sesquiterpene farnesol (3,7,11-trimethyl-2,6,10-dodecatrien-1-ol) and the sesquiterpene derivative geosmin (1,10-trans-dimethyl-trans-9-decalol) were investigated in a geosmin-producing actinomycete, Streptomyces tendae. Exposure to 300 microM farnesol reduced biomass (fresh matter) accumulation by 97% compared with biomass accumulation by controls, whereas an equal amount of geosmin did not affect biomass accumulation. Increasing exposure to farnesol corresponded with reduced optical density of the culture, reduced levels of geosmin, and reduced metabolic heat production compared with controls, while exogenous geosmin did not affect these parameters. Geosmin dissipated from unioculated medium more rapidly than farnesol, indicating that in addition to the lower toxicity of geosmin, the actual exposure to geosmin over time may be less than exposure to an equal amount of farnesol. Cultures grown on Actinomyces-B medium contained 99.5% less geosmin and were more sensitive to farnesol than those grown on Hickey-Tresner medium, indicating that geosmin synthesis was associated with reduced sensitivity to farnesol. Consumption of farnesyl moieties during geosmin synthesis may reduce the potential for farnesol-induced inhibition of growth and metabolism. JF - Applied and environmental microbiology AU - Dionigi, C P AU - Millie, D F AU - Johnsen, P B AD - Southern Regional Research Center, Agricultural Research Service, New Orleans, Louisiana 70179. Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 3429 EP - 3432 VL - 57 IS - 12 SN - 0099-2240, 0099-2240 KW - Naphthols KW - 0 KW - Farnesol KW - 4602-84-0 KW - geosmin KW - MYW912WXJ4 KW - Index Medicus KW - Hot Temperature KW - Kinetics KW - Streptomyces -- growth & development KW - Streptomyces -- metabolism KW - Farnesol -- pharmacology KW - Naphthols -- pharmacology KW - Streptomyces -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72659234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Effects+of+farnesol+and+the+off-flavor+derivative+geosmin+on+Streptomyces+tendae.&rft.au=Dionigi%2C+C+P%3BMillie%2C+D+F%3BJohnsen%2C+P+B&rft.aulast=Dionigi&rft.aufirst=C&rft.date=1991-12-01&rft.volume=57&rft.issue=12&rft.spage=3429&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-16 N1 - Date created - 1992-03-16 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 1984 Apr;47(4):814-20 [16346520] Appl Environ Microbiol. 1982 Mar;43(3):708-14 [16345978] Lipids. 1988 Jun;23(6):534-8 [3050345] FEBS Lett. 1981 Mar 23;125(2):220-2 [7227551] J Chromatogr. 1987 Nov 13;409:337-42 [3693488] J Appl Bacteriol. 1990 Apr;68(4):405-10 [2351622] Methods Enzymol. 1985;110:153-5 [2991703] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunocompetence and oxidant defense during ascorbate depletion of healthy men. AN - 72500635; 1962587 AB - To determine nonscorbutic effects of moderate vitamin C deficiency we measured immune function and oxidative damage in eight healthy men (25-43 y) who consumed 5-250 mg/d of ascorbic acid over 92 d on a metabolic unit. During ascorbic acid intakes of 5, 10, or 20 mg/d, subjects attained a state of moderate ascorbic acid deficiency as ascorbic acid concentrations in plasma, leucocytes, semen, and buccal cells dropped to less than 50% of baseline with no scorbutic symptoms observed. No changes in cell proliferation, erythrocyte antioxidant enzymes, and DNA strand breaks were observed; however, blood levels of glutathione and NAD(P) decreased during ascorbic acid deficiency, as did delayed hypersensitivity responsiveness. Concentrations of the oxidatively modified DNA base, 8-hydroxydeoxyguanosine in sperm DNA and fecapentaenes, ubiquitous fecal mutagens, were increased during ascorbic acid depletion. Moderate vitamin C deficiency, in the absence of scurvy, results in alteration of antioxidant chemistries and may permit increased oxidative damage. JF - The American journal of clinical nutrition AU - Jacob, R A AU - Kelley, D S AU - Pianalto, F S AU - Swendseid, M E AU - Henning, S M AU - Zhang, J Z AU - Ames, B N AU - Fraga, C G AU - Peters, J H AD - Western Human Nutrition Research Center, USDA Agricultural Research Service, Presidio of San Francisco, CA 94129. Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1302S EP - 1309S VL - 54 IS - 6 Suppl SN - 0002-9165, 0002-9165 KW - Oxidants KW - 0 KW - Polyenes KW - 1-(1-glycero)tetradeca-1,3,5,7,9-pentaene KW - 84000-58-8 KW - 1-(1-glycero)dodeca-1,3,5,7,9-pentaene KW - 84000-59-9 KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Abridged Index Medicus KW - Index Medicus KW - Humans KW - Polyenes -- analysis KW - Adult KW - Ascorbic Acid -- metabolism KW - Male KW - Ascorbic Acid Deficiency -- metabolism KW - Immunocompetence KW - Ascorbic Acid Deficiency -- immunology KW - Ascorbic Acid Deficiency -- physiopathology KW - Oxidants -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72500635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+journal+of+clinical+nutrition&rft.atitle=Immunocompetence+and+oxidant+defense+during+ascorbate+depletion+of+healthy+men.&rft.au=Jacob%2C+R+A%3BKelley%2C+D+S%3BPianalto%2C+F+S%3BSwendseid%2C+M+E%3BHenning%2C+S+M%3BZhang%2C+J+Z%3BAmes%2C+B+N%3BFraga%2C+C+G%3BPeters%2C+J+H&rft.aulast=Jacob&rft.aufirst=R&rft.date=1991-12-01&rft.volume=54&rft.issue=6+Suppl&rft.spage=1302S&rft.isbn=&rft.btitle=&rft.title=The+American+journal+of+clinical+nutrition&rft.issn=00029165&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-06 N1 - Date created - 1992-01-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Applying batch-determined retention properties to predict sulfate transport through soil columns AN - 50489238; 1992-015051 JF - Soil Science AU - Schnabel, R R AU - Potter, R M AU - Richie, E B Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 440 EP - 447 PB - Williams & Wilkins Company, Baltimore, MD VL - 152 IS - 6 SN - 0038-075X, 0038-075X KW - soils KW - sulfate ion KW - adsorption KW - geochemistry KW - pH KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50489238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Applying+batch-determined+retention+properties+to+predict+sulfate+transport+through+soil+columns&rft.au=Schnabel%2C+R+R%3BPotter%2C+R+M%3BRichie%2C+E+B&rft.aulast=Schnabel&rft.aufirst=R&rft.date=1991-12-01&rft.volume=152&rft.issue=6&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 28 N1 - PubXState - MD N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - adsorption; geochemistry; pH; soils; sulfate ion ER - TY - JOUR T1 - Effects of freezing on colloidal halloysite; implications for temperate soils AN - 50479775; 1992-008083 AB - The freezing of colloidal suspensions, extracted from N Idaho loess soils, results in the formation of silt- and sand-sized, stable, polycrystalline agglomerates that resist dispersion with agitation. XRD and TEM analyses showed that colloids are dominantly halloysite of 0.10-0.30 mu m diameter. The colloidal halloysite has anomalously high mole ratios of Si/Al and a high Fe content. Freeze-produced agglomerates are light yellow to yellowish-brown, occur in the form of plates, wedges, cuspates, or laths, and often exhibit uniform optical properties, suggesting a crystalline product. Selected area electron diffraction, however, indicates that the agglomerates are polycrystalline. With proper orientation, agglomerates produce acute bisectrix interference figures that are optically negative with variable 2V, generally < 30 degrees C. XRD analyses and IR spectra imply that the agglomerates are halloysite. Measured optical properties, however, are different from those reported for halloysite and may be affected by the high Fe content and polycrystalline nature of the agglomerates. Grains, exhibiting similar optical properties to laboratory-produced agglomerates, are a minor proportion of the very-fine sand fraction in some horizons of the soils studied. Freeze-aided agglomeration of colloidal material may be an important process in temperate climates. It may be overlooked because of particle destruction by soil pretreatment or morphological order and/or optical similarity to some micaceous minerals. JF - Clays and Clay Minerals AU - Blank, Robert R AU - Fosberg, Maynard A Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 642 EP - 650 PB - Clay Minerals Society, Clarkson, NY VL - 39 IS - 6 SN - 0009-8604, 0009-8604 KW - United States KW - soils KW - silicates KW - North America KW - Idaho KW - fragipans KW - X-ray diffraction data KW - clay mineralogy KW - U. S. Rocky Mountains KW - freezing KW - TEM data KW - Bitterroot Range KW - clay minerals KW - mineral composition KW - Clearwater River KW - areal studies KW - composition KW - sheet silicates KW - halloysite KW - Rocky Mountains KW - minerals KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Effects+of+freezing+on+colloidal+halloysite%3B+implications+for+temperate+soils&rft.au=Blank%2C+Robert+R%3BFosberg%2C+Maynard+A&rft.aulast=Blank&rft.aufirst=Robert&rft.date=1991-12-01&rft.volume=39&rft.issue=6&rft.spage=642&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1992-01-01 N1 - Number of references - 28 N1 - PubXState - NY N1 - Document feature - 4 tables, charts N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - areal studies; Bitterroot Range; clay mineralogy; clay minerals; Clearwater River; composition; fragipans; freezing; halloysite; Idaho; mineral composition; minerals; North America; Rocky Mountains; sheet silicates; silicates; soils; TEM data; U. S. Rocky Mountains; United States; X-ray diffraction data ER - TY - JOUR T1 - Tensile strength of thirty-three saturated repacked soils AN - 50463231; 1992-026846 JF - Soil Science Society of America Journal AU - Nearing, M A AU - Parker, S C AU - Bradford, J M AU - Elliot, W J Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1546 EP - 1551 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - soils KW - soil mechanics KW - saturated zone KW - materials, properties KW - statistical analysis KW - tensile strength KW - properties KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50463231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Tensile+strength+of+thirty-three+saturated+repacked+soils&rft.au=Nearing%2C+M+A%3BParker%2C+S+C%3BBradford%2C+J+M%3BElliot%2C+W+J&rft.aulast=Nearing&rft.aufirst=M&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1546&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 23 N1 - PubXState - WI N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - materials, properties; properties; saturated zone; soil mechanics; soils; statistical analysis; tensile strength ER - TY - JOUR T1 - System for collecting undisturbed cores from surface soils for micromorphological analysis AN - 50461189; 1992-026862 JF - Soil Science Society of America Journal AU - Rhoton, F E AU - McChesney, D S Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1796 EP - 1797 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - soils KW - morphology KW - sampling KW - micromorphology KW - techniques KW - instruments KW - cores KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50461189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=System+for+collecting+undisturbed+cores+from+surface+soils+for+micromorphological+analysis&rft.au=Rhoton%2C+F+E%3BMcChesney%2C+D+S&rft.aulast=Rhoton&rft.aufirst=F&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1796&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 7 N1 - PubXState - WI N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - cores; instruments; micromorphology; morphology; sampling; soils; techniques ER - TY - JOUR T1 - Infiltration patterns from simulated rainfall on a semiarid rangeland soil AN - 50461131; 1992-026857 JF - Soil Science Society of America Journal AU - Seyfried, Mark S Y1 - 1991/12// PY - 1991 DA - December 1991 SP - 1726 EP - 1734 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 6 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Nancy's Gulch KW - Idaho KW - terrestrial environment KW - semi-arid environment KW - atmospheric precipitation KW - water balance KW - southern Idaho KW - infiltration KW - movement KW - water regimes KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50461131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Infiltration+patterns+from+simulated+rainfall+on+a+semiarid+rangeland+soil&rft.au=Seyfried%2C+Mark+S&rft.aulast=Seyfried&rft.aufirst=Mark&rft.date=1991-12-01&rft.volume=55&rft.issue=6&rft.spage=1726&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 43 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Idaho; infiltration; movement; Nancy's Gulch; semi-arid environment; soils; southern Idaho; terrestrial environment; United States; water balance; water regimes ER - TY - JOUR T1 - Evaluation of the WEPP hillslope profile hydrology component on a semi-arid rangeland watershed AN - 50081971; 1996-012030 JF - International Winter Meeting - American Society of Agricultural Engineers AU - van der Zweep, R A AU - Stone, J J AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - soils KW - hydrology KW - terrestrial environment KW - erosion KW - semi-arid environment KW - data processing KW - watersheds KW - southeastern Arizona KW - prediction KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - Walnut Gulch watershed KW - runoff KW - Arizona KW - hydraulic conductivity KW - soil erosion KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Evaluation+of+the+WEPP+hillslope+profile+hydrology+component+on+a+semi-arid+rangeland+watershed&rft.au=van+der+Zweep%2C+R+A%3BStone%2C+J+J%3BAnonymous&rft.aulast=van+der+Zweep&rft.aufirst=R&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 18 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Paper No. 91-2552 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - Arizona; computer programs; data processing; erosion; hydraulic conductivity; hydrology; models; prediction; runoff; semi-arid environment; simulation; soil erosion; soils; southeastern Arizona; terrestrial environment; United States; Walnut Gulch watershed; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Validation of WEPP 91.5 with watershed data AN - 50081732; 1996-012019 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Kramer, Larry A AU - Hjelmfelt, Allen T, Jr AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - erosion KW - rills KW - data processing KW - watersheds KW - prediction KW - erosion features KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - runoff KW - sediments KW - basin management KW - soil erosion KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Validation+of+WEPP+91.5+with+watershed+data&rft.au=Kramer%2C+Larry+A%3BHjelmfelt%2C+Allen+T%2C+Jr%3BAnonymous&rft.aulast=Kramer&rft.aufirst=Larry&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 8 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Paper No. 91-2511 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - basin management; computer programs; data processing; erosion; erosion features; hydrology; models; prediction; rills; runoff; sediments; simulation; soil erosion; soils; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Revising EP400.1 for constructing irrigation wells AN - 50081312; 1996-012034 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Kranz, William AU - Hay, DeLynn R AU - Hardy, Leland AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - wells KW - regulations KW - pumping KW - government agencies KW - water management KW - U. S. Environmental Protection Agency KW - rates KW - preventive measures KW - irrigation KW - ground water KW - aquifers KW - boreholes KW - multiple aquifers KW - policy KW - discharge KW - water wells KW - water resources KW - construction KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Revising+EP400.1+for+constructing+irrigation+wells&rft.au=Kranz%2C+William%3BHay%2C+DeLynn+R%3BHardy%2C+Leland%3BAnonymous&rft.aulast=Kranz&rft.aufirst=William&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - 1 table N1 - SuppNotes - Paper No. 91-2564 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; boreholes; construction; discharge; government agencies; ground water; irrigation; land use; multiple aquifers; policy; preventive measures; pumping; rates; regulations; U. S. Environmental Protection Agency; water management; water resources; water wells; wells ER - TY - JOUR T1 - Shallow ground water and surface runoff instrumentation for small watersheds AN - 50081257; 1996-012024 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Cullum, R F AU - Schreiber, J D AU - Smith, S, Jr AU - Grissinger, E H AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - hydrology KW - water quality KW - concentration KW - experimental studies KW - monitoring KW - pollutants KW - Mississippi KW - watersheds KW - unsaturated zone KW - pollution KW - irrigation KW - ground water KW - aquifers KW - pressuremeters KW - detection KW - infiltration KW - runoff KW - shallow aquifers KW - tillage KW - nitrate ion KW - discharge KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50081257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Shallow+ground+water+and+surface+runoff+instrumentation+for+small+watersheds&rft.au=Cullum%2C+R+F%3BSchreiber%2C+J+D%3BSmith%2C+S%2C+Jr%3BGrissinger%2C+E+H%3BAnonymous&rft.aulast=Cullum&rft.aufirst=R&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 15 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2541 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; concentration; detection; discharge; experimental studies; ground water; hydrology; infiltration; instruments; irrigation; Mississippi; monitoring; nitrate ion; pollutants; pollution; pressuremeters; runoff; shallow aquifers; tillage; United States; unsaturated zone; water quality; watersheds ER - TY - JOUR T1 - Assessment of error in the Universal Soil Loss Equation using natural runoff plot data AN - 50079982; 1996-012033 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Risse, L M AU - Nearing, M A AU - Laflen, J M AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - erosion KW - Universal Soil Loss Equation KW - watersheds KW - prediction KW - mathematical models KW - erosion features KW - preferential flow KW - simulation KW - models KW - interactive techniques KW - errors KW - transport KW - infiltration KW - runoff KW - sediments KW - soil erosion KW - erodibility KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Assessment+of+error+in+the+Universal+Soil+Loss+Equation+using+natural+runoff+plot+data&rft.au=Risse%2C+L+M%3BNearing%2C+M+A%3BLaflen%2C+J+M%3BAnonymous&rft.aulast=Risse&rft.aufirst=L&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 20 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Paper No. 91-2558 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - erodibility; erosion; erosion features; errors; hydrology; infiltration; interactive techniques; mathematical models; models; prediction; preferential flow; runoff; sediments; simulation; soil erosion; soils; transport; Universal Soil Loss Equation; watersheds ER - TY - JOUR T1 - WEPP validation using rainfall simulator data AN - 50079952; 1996-012031 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Flanagan, Dennis C AU - Ferris, J E AU - Livingston, S J AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - erosion KW - rills KW - Universal Soil Loss Equation KW - data processing KW - watersheds KW - erosion features KW - preferential flow KW - simulation KW - interactive techniques KW - transport KW - sediments KW - soil erosion KW - soils KW - hydrology KW - rainfall KW - agriculture KW - prediction KW - models KW - computer programs KW - Water Erosion Prediction Project KW - infiltration KW - runoff KW - hydraulic conductivity KW - land use KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=WEPP+validation+using+rainfall+simulator+data&rft.au=Flanagan%2C+Dennis+C%3BFerris%2C+J+E%3BLivingston%2C+S+J%3BAnonymous&rft.aulast=Flanagan&rft.aufirst=Dennis&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 25 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Paper 91-2556 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agriculture; computer programs; data processing; erosion; erosion features; hydraulic conductivity; hydrology; infiltration; interactive techniques; land use; models; prediction; preferential flow; rainfall; rills; runoff; sediments; simulation; soil erosion; soils; transport; Universal Soil Loss Equation; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Newaukum River stream bank erosion control demonstration project AN - 50079101; 1996-012041 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Renner, Dean M AU - Meuer, Julian L AU - Bates, Ken AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - soils KW - embankments KW - Lewis County Washington KW - experimental studies KW - Washington KW - monitoring KW - erosion KW - Newaukum River KW - erosion features KW - vegetation KW - rivers KW - preventive measures KW - erosion control KW - fluvial features KW - waterways KW - soil erosion KW - construction KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Newaukum+River+stream+bank+erosion+control+demonstration+project&rft.au=Renner%2C+Dean+M%3BMeuer%2C+Julian+L%3BBates%2C+Ken%3BAnonymous&rft.aulast=Renner&rft.aufirst=Dean&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2581 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - construction; embankments; erosion; erosion control; erosion features; experimental studies; fluvial features; Lewis County Washington; monitoring; Newaukum River; preventive measures; rivers; soil erosion; soils; United States; vegetation; Washington; waterways ER - TY - JOUR T1 - Applying case-based reasoning techniques to the WEPP soil erosion model AN - 50077088; 1996-012048 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Myer, Charles R AU - Flanagan, Dennis C AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - erosion KW - Universal Soil Loss Equation KW - data processing KW - prediction KW - decision-making KW - calibration KW - erosion features KW - simulation KW - models KW - computer programs KW - Water Erosion Prediction Project KW - artificial intelligence KW - soil erosion KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Applying+case-based+reasoning+techniques+to+the+WEPP+soil+erosion+model&rft.au=Myer%2C+Charles+R%3BFlanagan%2C+Dennis+C%3BAnonymous&rft.aulast=Myer&rft.aufirst=Charles&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. N1 - SuppNotes - Paper No. 91-2625 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - artificial intelligence; calibration; computer programs; data processing; decision-making; erosion; erosion features; models; prediction; simulation; soil erosion; soils; Universal Soil Loss Equation; Water Erosion Prediction Project ER - TY - JOUR T1 - Green-Ampt and the curve number AN - 50077042; 1996-012046 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Van Mullem, Joseph A AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - soils KW - hydrology KW - rainfall KW - Green-Ampt model KW - watersheds KW - capillarity KW - ground water KW - models KW - recharge KW - physical properties KW - infiltration KW - runoff KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50077042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Green-Ampt+and+the+curve+number&rft.au=Van+Mullem%2C+Joseph+A%3BAnonymous&rft.aulast=Van+Mullem&rft.aufirst=Joseph&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2610 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - capillarity; Green-Ampt model; ground water; hydraulic conductivity; hydrology; infiltration; models; physical properties; rainfall; recharge; runoff; soils; watersheds ER - TY - JOUR T1 - Ground-water response in a mountainous watershed; testing of a conceptual model AN - 50076956; 1996-012025 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Flerchinger, G N AU - Deng, Y AU - Cooley, K R AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - watersheds KW - atmospheric precipitation KW - ground water KW - Reynolds Creek KW - mountains KW - hydrologic cycle KW - southwestern Idaho KW - snow KW - relief effects KW - climate effects KW - discharge KW - hydrology KW - Idaho KW - numerical models KW - confined aquifers KW - Owyhee Mountains KW - aquifers KW - models KW - recharge KW - pressuremeters KW - detection KW - shallow aquifers KW - meltwater KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Ground-water+response+in+a+mountainous+watershed%3B+testing+of+a+conceptual+model&rft.au=Flerchinger%2C+G+N%3BDeng%2C+Y%3BCooley%2C+K+R%3BAnonymous&rft.aulast=Flerchinger&rft.aufirst=G&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 11 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables, sketch map N1 - SuppNotes - Paper No. 91-2542 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; atmospheric precipitation; climate effects; confined aquifers; detection; discharge; ground water; hydrologic cycle; hydrology; Idaho; meltwater; models; mountains; numerical models; Owyhee Mountains; pressuremeters; recharge; relief effects; Reynolds Creek; shallow aquifers; snow; southwestern Idaho; United States; watersheds ER - TY - JOUR T1 - Restoration of a riparian wetland for agricultural water quality improvement AN - 50076732; 1996-012018 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Vellidis, George AU - Smith, Matt C AU - Lowrance, Richard AU - Hubbard, Robert K AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - United States KW - water quality KW - agricultural waste KW - reclamation KW - ecosystems KW - nonpoint sources KW - remediation KW - ground water KW - nitrate ion KW - discharge KW - Atlantic Coastal Plain KW - protection KW - hydrology KW - forests KW - experimental studies KW - pollutants KW - pollution KW - phosphorus KW - bioremediation KW - preventive measures KW - aquifers KW - nutrients KW - wetlands KW - infiltration KW - runoff KW - shallow aquifers KW - Georgia KW - waste disposal KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Restoration+of+a+riparian+wetland+for+agricultural+water+quality+improvement&rft.au=Vellidis%2C+George%3BSmith%2C+Matt+C%3BLowrance%2C+Richard%3BHubbard%2C+Robert+K%3BAnonymous&rft.aulast=Vellidis&rft.aufirst=George&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 16 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - sketch maps N1 - SuppNotes - Paper No. 91-2507 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agricultural waste; aquifers; Atlantic Coastal Plain; bioremediation; discharge; ecosystems; experimental studies; forests; Georgia; ground water; hydrology; infiltration; land use; nitrate ion; nonpoint sources; nutrients; phosphorus; pollutants; pollution; preventive measures; protection; reclamation; remediation; runoff; shallow aquifers; United States; waste disposal; water quality; wetlands ER - TY - JOUR T1 - Use of SCS Scheduler on high water table soils AN - 50076492; 1996-012053 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Admire, K E AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - wells KW - water use KW - United States KW - soils KW - Mississippi Delta KW - data processing KW - pollution KW - optimization KW - observation wells KW - irrigation KW - ground water KW - aquifers KW - computer programs KW - water table KW - interactive techniques KW - shallow aquifers KW - Louisiana KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50076492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Use+of+SCS+Scheduler+on+high+water+table+soils&rft.au=Admire%2C+K+E%3BAnonymous&rft.aulast=Admire&rft.aufirst=K&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 2 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Paper No. 91-2636 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - aquifers; computer programs; data processing; ground water; interactive techniques; irrigation; Louisiana; Mississippi Delta; observation wells; optimization; pollution; shallow aquifers; soils; United States; water resources; water table; water use; wells ER - TY - JOUR T1 - Validation of the WEPP model with rill erosion plot data AN - 50075975; 1996-012032 JF - International Winter Meeting - American Society of Agricultural Engineers AU - Elliot, William J AU - Elliot, Annette V AU - Wu, Qiong AU - Laflen, J M AU - Anonymous Y1 - 1991/12// PY - 1991 DA - December 1991 EP - variously paginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991, Winter KW - erosion KW - rills KW - Universal Soil Loss Equation KW - data processing KW - watersheds KW - erosion features KW - preferential flow KW - simulation KW - interactive techniques KW - transport KW - sediments KW - soil erosion KW - soils KW - hydrology KW - rainfall KW - agriculture KW - prediction KW - mathematical models KW - models KW - computer programs KW - Water Erosion Prediction Project KW - infiltration KW - runoff KW - hydraulic conductivity KW - land use KW - soil management KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50075975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Validation+of+the+WEPP+model+with+rill+erosion+plot+data&rft.au=Elliot%2C+William+J%3BElliot%2C+Annette+V%3BWu%2C+Qiong%3BLaflen%2C+J+M%3BAnonymous&rft.aulast=Elliot&rft.aufirst=William&rft.date=1991-12-01&rft.volume=1991%2C+Winter&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Winter+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international winter meeting, American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 21 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Paper No. 91-2557 N1 - Last updated - 2012-06-07 N1 - CODEN - #03996 N1 - SubjectsTermNotLitGenreText - agriculture; computer programs; data processing; erosion; erosion features; hydraulic conductivity; hydrology; infiltration; interactive techniques; land use; mathematical models; models; prediction; preferential flow; rainfall; rills; runoff; sediments; simulation; soil erosion; soil management; soils; transport; Universal Soil Loss Equation; Water Erosion Prediction Project; watersheds ER - TY - JOUR T1 - Inhibition of some mycotoxigenic fungi by iturin A, a peptidolipid produced by Bacillus subtilis. AN - 72643116; 1780001 AB - Bacillus subtilis produces peptidolipid compounds of the iturin group that have been shown to have antifungal properties, but not all fungal species are sensitive to these compounds. In this study, the activity of iturin A, produced by B. subtilis strain B-3, was tested. Paper disks impregnated with various concentrations of iturin A were placed on agar plates seeded with conidia of toxigenic species of Fusarium, Gerlacia, Penicillium or Aspergillus. Most isolates were inhibited at iturin A concentrations as low as 4 micrograms/disk. Penicillium italicum, P. viridicatum, A. ochraceus and A. versicolor were most strongly inhibited by the iturin whereas P. citrinum and A. parasiticus were least sensitive to iturin A. JF - Mycopathologia AU - Klich, M A AU - Lax, A R AU - Bland, J M AD - US Department of Agriculture, Southern Regional Research Center, New Orleans, LA 70179-0687. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 77 EP - 80 VL - 116 IS - 2 SN - 0301-486X, 0301-486X KW - Anti-Bacterial Agents KW - 0 KW - Antifungal Agents KW - Mycotoxins KW - Peptides KW - Peptides, Cyclic KW - iturin A KW - 52229-90-0 KW - Index Medicus KW - Aspergillus -- drug effects KW - Fusarium -- metabolism KW - Fusarium -- drug effects KW - Peptides, Cyclic -- biosynthesis KW - Penicillium -- metabolism KW - Biological Assay KW - Penicillium -- drug effects KW - Chromatography, Thin Layer KW - Aspergillus -- metabolism KW - Peptides, Cyclic -- pharmacology KW - Chromatography, High Pressure Liquid KW - Antifungal Agents -- biosynthesis KW - Fungi -- metabolism KW - Antifungal Agents -- pharmacology KW - Mycotoxins -- biosynthesis KW - Fungi -- drug effects KW - Bacillus subtilis -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72643116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Inhibition+of+some+mycotoxigenic+fungi+by+iturin+A%2C+a+peptidolipid+produced+by+Bacillus+subtilis.&rft.au=Klich%2C+M+A%3BLax%2C+A+R%3BBland%2C+J+M&rft.aulast=Klich&rft.aufirst=M&rft.date=1991-11-01&rft.volume=116&rft.issue=2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-12 N1 - Date created - 1992-03-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Supercritical fluid extraction/enzyme assay: a novel technique to screen for pesticide residues in meat products. AN - 72570518; 1757408 AB - The novel combination of supercritical fluid extraction (SFE) with an enzyme assay system has been used to screen meat products to detect the presence of pesticides. Analytes are collected in water by expanding supercritical carbon dioxide to atmospheric pressure through a restrictor and into an aqueous phase. The solution is then tested for the presence of pesticide residues by enzyme assay. Two experimental approaches have been used. Alachlor-fortified lard and bovine liver were monitored by static SFE coupled with an enzyme immunoassay. SFE of carbofuran-fortified frankfurters was coupled with an enzyme assay based on cholinesterase inhibition. A major benefit of the SFE/enzyme assay technique over conventional screening techniques is that the analyst is not exposed to organic solvents. JF - Journal - Association of Official Analytical Chemists AU - France, J E AU - King, J W AD - U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. PY - 1991 SP - 1013 EP - 1016 VL - 74 IS - 6 SN - 0004-5756, 0004-5756 KW - Acetamides KW - 0 KW - Cholinesterase Inhibitors KW - Dietary Fats KW - Pesticide Residues KW - Carbon Dioxide KW - 142M471B3J KW - alachlor KW - 24S2S61PXL KW - lard KW - SI6O3IW77Z KW - Carbofuran KW - SKF77S6Y67 KW - Index Medicus KW - Carbofuran -- analysis KW - Animals KW - Dietary Fats -- analysis KW - Cattle KW - Acetamides -- analysis KW - Atmospheric Pressure KW - Liver -- chemistry KW - Pesticide Residues -- analysis KW - Immunoenzyme Techniques -- instrumentation KW - Meat Products -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72570518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Supercritical+fluid+extraction%2Fenzyme+assay%3A+a+novel+technique+to+screen+for+pesticide+residues+in+meat+products.&rft.au=France%2C+J+E%3BKing%2C+J+W&rft.aulast=France&rft.aufirst=J&rft.date=1991-11-01&rft.volume=74&rft.issue=6&rft.spage=1013&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-06 N1 - Date created - 1992-02-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - An analytical survey of aflatoxins in tissues from swine grown in regions reporting 1988 aflatoxin-contaminated corn. AN - 72568823; 1757410 AB - A joint project was undertaken by the Food Safety and Inspection Service (FSIS) and the Agriculture Research Service branches of the U.S. Department of Agriculture to determine the presence of aflatoxins in the U.S. meat supply during a drought year. In 1988, high incidences of aflatoxins occurred in corn grown in regions of the Midwest, Southeast, and South. Six states were identified as having serious aflatoxin contamination in their corn crop: Virginia, North and South Carolina, Texas, Iowa, and Illinois. Swine liver and pillars of diaphragm (muscle) tissues were sampled by federal FSIS Inspectors in plants located in these states. A worstcase sampling plan was conducted. Samples were taken in January 1989 from hogs fed corn soon after harvest and in April 1989 from hogs fed corn originally stored and then fed in the spring. A modification of the official AOAC method for the thin-layer chromatography (TLC) determination of aflatoxins in animal tissue was used to permit quantitation by LC with fluorescence detection. The official AOAC TLC confirmation of identity method was used to confirm all positive samples with B1 concentrations greater than 0.04 ppb and M1 concentrations greater than 0.1 ppb. Sixty samples in the January group and 100 samples in the April group were assayed. Concentrations of aflatoxins B1 and M1 in the first group of pig livers ranged from 0.04 to 0.06 ppb. The identity of aflatoxin B1 was confirmed in all positive samples. Aflatoxin M1 could not be confirmed in any of the positive liver samples because the method was insufficiently sensitive for this aflatoxin.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Journal - Association of Official Analytical Chemists AU - Stubblefield, R D AU - Honstead, J P AU - Shotwell, O L AD - U.S. Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. PY - 1991 SP - 897 EP - 899 VL - 74 IS - 6 SN - 0004-5756, 0004-5756 KW - Aflatoxins KW - 0 KW - Aflatoxin M1 KW - 6795-23-9 KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Index Medicus KW - Swine KW - Animals KW - Muscles -- chemistry KW - Liver -- chemistry KW - Aflatoxin M1 -- analysis KW - Aflatoxin B1 -- analysis KW - Aflatoxins -- analysis KW - Zea mays KW - Food Contamination KW - Meat -- analysis KW - Animal Feed -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72568823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=An+analytical+survey+of+aflatoxins+in+tissues+from+swine+grown+in+regions+reporting+1988+aflatoxin-contaminated+corn.&rft.au=Stubblefield%2C+R+D%3BHonstead%2C+J+P%3BShotwell%2C+O+L&rft.aulast=Stubblefield&rft.aufirst=R&rft.date=1991-11-01&rft.volume=74&rft.issue=6&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-06 N1 - Date created - 1992-02-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Methods for inoculation and recovery of Salmonella from chicken eggs. AN - 72562190; 1754543 AB - Various methods of applying inoculum and recovering low numbers of artificially inoculated Salmonella typhimurium on eggs were evaluated. Inoculation methods tested were suspending cells in 1) .85% saline; 2) 1% peptone; 3) sterile chicken fecal paste; or 4) a 1:10 dilution of chicken feces in .85% saline. Sampling methods tested were 1) shell and membrane massage; and 2) mortar and pestle grinding of shells and membranes. The method that yielded the best recovery of low numbers of Salmonella was as follows: 1) apply cell suspension in 1% peptone to egg; 2) sample egg by a hand crush and massage of shell and membranes in 50 mL of buffered peptone; 3) incubate shell and membranes in buffered peptone overnight and then plate onto selective agar. Methods that did not improve sensitivity of recovery included varying the inoculum drying time, addition of FeSO4 or Cleland's reagent to the recovery medium, and varying the temperature of the inoculum to affect penetration. JF - Poultry science AU - Berrang, M E AU - Cox, N A AU - Bailey, J S AU - Blankenship, L C AD - USDA, Agricultural Research Service, Russell Research Center, Athens, Georgia 30613. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 2267 EP - 2270 VL - 70 IS - 11 SN - 0032-5791, 0032-5791 KW - Index Medicus KW - Animals KW - Egg Shell -- microbiology KW - Food Microbiology KW - Eggs -- microbiology KW - Chickens -- microbiology KW - Salmonella typhimurium -- isolation & purification KW - Salmonella typhimurium -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72562190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Methods+for+inoculation+and+recovery+of+Salmonella+from+chicken+eggs.&rft.au=Berrang%2C+M+E%3BCox%2C+N+A%3BBailey%2C+J+S%3BBlankenship%2C+L+C&rft.aulast=Berrang&rft.aufirst=M&rft.date=1991-11-01&rft.volume=70&rft.issue=11&rft.spage=2267&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-29 N1 - Date created - 1992-01-29 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of random mutagenesis upon potato spindle tuber viroid replication and symptom expression. AN - 72161027; 1926773 AB - A combination of random chemical mutagenesis plus temperature gradient gel electrophoresis was used to isolate a collection of 57 potato spindle tuber viroid (PSTV) cDNAs containing mutations distributed throughout the entire 359 nucleotide genome. Although the presence of multiple mutations was often associated with a loss of cDNA infectivity, infectious PSTV cDNAs containing as many as four unlinked alterations could be isolated. Several mutations in the pathogenicity domain and left terminal loop were stably maintained in the resulting progeny, but those which affect base pairing in secondary hairpins I and II were either lethal or rapidly reverted to wild-type. One stable C----U substitution which may promote significant structural rearrangement within the right side of the pathogenicity domain had no detectable effect upon symptom expression. The variable domains of several noninfectious mutants contained an A----G substitution which is likely to inhibit the in vitro formation of secondary hairpin II via stabilization of the native structure, and the lethal nature of this mutation was confirmed by oligonucleotide-directed mutagenesis. Several lines of evidence now point toward an essential role for secondary hairpin II in the replication of PSTV and related viroids. JF - Virology AU - Owens, R A AU - Thompson, S M AU - Steger, G AD - Microbiology and Plant Pathology Laboratory, Plant Sciences Institute-USDA-ARS Beltsville, Maryland 20705. Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 18 EP - 31 VL - 185 IS - 1 SN - 0042-6822, 0042-6822 KW - DNA, Viral KW - 0 KW - Oligodeoxyribonucleotides KW - Index Medicus KW - Nucleic Acid Denaturation KW - Base Sequence KW - Virulence -- genetics KW - Solanum tuberosum KW - Genetic Vectors KW - Molecular Sequence Data KW - Escherichia coli -- genetics KW - Plasmids KW - Nucleic Acid Conformation KW - DNA, Viral -- genetics KW - Cloning, Molecular KW - Virus Replication KW - Mutagenesis, Site-Directed KW - Viroids -- pathogenicity KW - Viroids -- physiology KW - Plant Viruses -- genetics KW - Genome, Viral KW - Plant Viruses -- physiology KW - Plant Viruses -- pathogenicity KW - Viroids -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72161027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Virology&rft.atitle=Effects+of+random+mutagenesis+upon+potato+spindle+tuber+viroid+replication+and+symptom+expression.&rft.au=Owens%2C+R+A%3BThompson%2C+S+M%3BSteger%2C+G&rft.aulast=Owens&rft.aufirst=R&rft.date=1991-11-01&rft.volume=185&rft.issue=1&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Virology&rft.issn=00426822&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-21 N1 - Date created - 1991-11-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Depth-of-erosion assessment using Fe-Mn nodule concentrations in surface horizons AN - 50486295; 1992-009974 JF - Soil Science AU - Rhoton, F E AU - Meyer, L D AU - McChesney, D S Y1 - 1991/11// PY - 1991 DA - November 1991 SP - 389 EP - 394 PB - Williams & Wilkins Company, Baltimore, MD VL - 152 IS - 5 SN - 0038-075X, 0038-075X KW - United States KW - soils KW - processes KW - secondary structures KW - Alamo, Tennessee KW - erosion KW - Mississippi KW - water erosion KW - Holly Springs, Mississippi KW - ferromanganese composition KW - concretions KW - Tennessee KW - soil erosion KW - sedimentary structures KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50486295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Depth-of-erosion+assessment+using+Fe-Mn+nodule+concentrations+in+surface+horizons&rft.au=Rhoton%2C+F+E%3BMeyer%2C+L+D%3BMcChesney%2C+D+S&rft.aulast=Rhoton&rft.aufirst=F&rft.date=1991-11-01&rft.volume=152&rft.issue=5&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 14 N1 - PubXState - MD N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - Alamo, Tennessee; concretions; erosion; ferromanganese composition; Holly Springs, Mississippi; Mississippi; processes; secondary structures; sedimentary structures; soil erosion; soils; Tennessee; United States; water erosion ER - TY - JOUR T1 - Analysis of corn and cultured corn for fumonisin B1 by HPLC and GC/MS by four laboratories. AN - 72579979; 1760472 JF - Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc AU - Plattner, R D AU - Ross, P F AU - Reagor, J AU - Stedelin, J AU - Rice, L G AD - US Department of Agriculture, National Center for Agricultural Utilization Research, Peoria, IL 61604. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 357 EP - 358 VL - 3 IS - 4 SN - 1040-6387, 1040-6387 KW - Fumonisins KW - 0 KW - Mycotoxins KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Swine KW - Animals KW - Fusarium -- isolation & purification KW - Gas Chromatography-Mass Spectrometry KW - Horses KW - Chromatography, High Pressure Liquid KW - Zea mays -- microbiology KW - Food Microbiology KW - Zea mays -- chemistry KW - Animal Feed -- analysis KW - Mycotoxins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72579979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.atitle=Analysis+of+corn+and+cultured+corn+for+fumonisin+B1+by+HPLC+and+GC%2FMS+by+four+laboratories.&rft.au=Plattner%2C+R+D%3BRoss%2C+P+F%3BReagor%2C+J%3BStedelin%2C+J%3BRice%2C+L+G&rft.aulast=Plattner&rft.aufirst=R&rft.date=1991-10-01&rft.volume=3&rft.issue=4&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Journal+of+veterinary+diagnostic+investigation+%3A+official+publication+of+the+American+Association+of+Veterinary+Laboratory+Diagnosticians%2C+Inc&rft.issn=10406387&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-12 N1 - Date created - 1992-02-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of chronic ethanol feeding on hepatic and extrahepatic distribution of vitamin E in rats. AN - 72566345; 1755507 AB - The effect of chronic ethanol feeding on the status of alpha- and gamma-tocopherol in plasma, liver, lung, and testes of Sprague-Dawley rats was characterized. Rats were pair-fed liquid diets containing 36% of total calories either as ethanol or isocaloric carbohydrates. After 3 weeks, ethanol ingestion resulted in a significant (p less than or equal to 0.05) increase in liver weight and induced fatty liver without affecting total body weight. Ethanol feeding did not affect the plasma concentration of alpha-tocopherol but doubled that of gamma-tocopherol. When expressed per milligram of tissue, liver alpha-tocopherol did not vary with ethanol ingestion, whereas gamma-tocopherol concentration increased 2.5 times that of control animals. However, the concentration of alpha-tocopherol expressed per milligram of total lipids was significantly (p less than or equal to 0.01) decreased in the liver with ethanol feeding. In contrast to the liver, ethanol feeding significantly increased alpha- and gamma-tocopherol levels per milligram of total lipids in the testes. The concentration of gamma-tocopherol (but not alpha-tocopherol) per milligram of lung tissue and per total lung was significantly (p less than or equal to 0.05) increased with ethanol feeding. These data indicate that chronic ethanol ingestion significantly alters the distribution of alpha-tocopherol and gamma-tocopherol in hepatic and extrahepatic tissues of the rat. JF - Alcoholism, clinical and experimental research AU - Meydani, M AU - Seitz, H K AU - Blumberg, J B AU - Russell, R M AD - USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts 02111. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 771 EP - 774 VL - 15 IS - 5 SN - 0145-6008, 0145-6008 KW - Vitamin E KW - 1406-18-4 KW - Index Medicus KW - Rats, Inbred Strains KW - Rats KW - Animals KW - Organ Size -- physiology KW - Testis -- pathology KW - Body Weight -- physiology KW - Tissue Distribution KW - Lung -- pathology KW - Male KW - Liver -- pathology KW - Alcoholism -- pathology KW - Vitamin E -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72566345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Alcoholism%2C+clinical+and+experimental+research&rft.atitle=Effect+of+chronic+ethanol+feeding+on+hepatic+and+extrahepatic+distribution+of+vitamin+E+in+rats.&rft.au=Meydani%2C+M%3BSeitz%2C+H+K%3BBlumberg%2C+J+B%3BRussell%2C+R+M&rft.aulast=Meydani&rft.aufirst=M&rft.date=1991-10-01&rft.volume=15&rft.issue=5&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Alcoholism%2C+clinical+and+experimental+research&rft.issn=01456008&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-28 N1 - Date created - 1992-01-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Aflatoxin production via cross-feeding of pathway intermediates during cofermentation of aflatoxin pathway-blocked Aspergillus parasiticus mutants. AN - 72539620; 1746952 AB - Cofermentation of Aspergillus parasiticus strains (SRRC 163 and SRRC 2043) blocked at different steps in the aflatoxin B1 (AFB1) biosynthetic pathway in a synthetic liquid medium or on seeds (cottonseed, corn kernels, and peanuts) resulted in production of AFB1. Strain SRRC 2043 accumulated O-methylsterigmatocystin (OMST), a late precursor in AFB1 biosynthesis, whereas SRRC 163 accumulated averantin, an early precursor in the pathway. Strain SRRC 2043 secreted large amounts of OMST in culture relative to the amounts of several other pathway intermediates secreted into media (by other AFB1 pathway-blocked strains). AFB1 production occurred even when colonies of SRRC 163 and SRRC 2043 strains (producing no detectable AFB1) were grown together on an agar medium while physically separated from each other by a filter membrane (0.22-micron pore size). In addition, when mycelia of strain SRRC 163 were added to culture filtrates (containing no mycelia but containing secreted OMST) of strain SRRC 2043, AFB1 production occurred. The results suggested a chemical (rather than genetic) mechanism of complementation for AFB1 production between AFB1 pathway-blocked strains, since no mycelial contact was required between these strains for AFB1 production. The mechanism for chemical complementation involves secretion of OMST by SRRC 2043 and subsequent absorption and conversion of OMST to AFB1 by mycelia of strain SRRC 163. JF - Applied and environmental microbiology AU - Cleveland, T E AU - Bhatnagar, D AU - Brown, R L AD - Southern Regional Research Center, U.S. Department of Agriculture, New Orleans, Louisiana 70124. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 2907 EP - 2911 VL - 57 IS - 10 SN - 0099-2240, 0099-2240 KW - Culture Media KW - 0 KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Index Medicus KW - Genetic Complementation Test KW - Aspergillus -- genetics KW - Aflatoxin B1 -- metabolism KW - Fermentation KW - Aflatoxin B1 -- biosynthesis KW - Aspergillus -- metabolism KW - Mutation KW - Aspergillus -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72539620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Aflatoxin+production+via+cross-feeding+of+pathway+intermediates+during+cofermentation+of+aflatoxin+pathway-blocked+Aspergillus+parasiticus+mutants.&rft.au=Cleveland%2C+T+E%3BBhatnagar%2C+D%3BBrown%2C+R+L&rft.aulast=Cleveland&rft.aufirst=T&rft.date=1991-10-01&rft.volume=57&rft.issue=10&rft.spage=2907&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-01-13 N1 - Date created - 1992-01-13 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Mycopathologia. 1990 Jul;111(1):39-45 [2233978] Appl Environ Microbiol. 1991 May;57(5):1340-5 [1854196] Microbiol Rev. 1988 Jun;52(2):274-95 [3137428] Appl Environ Microbiol. 1987 Jul;53(7):1711-3 [3116930] Appl Environ Microbiol. 1987 Jan;53(1):14-6 [3103529] Appl Environ Microbiol. 1987 May;53(5):1028-33 [3111363] Mycopathologia. 1989 Sep;107(2-3):75-83 [2515439] Prep Biochem. 1988;18(3):321-49 [3237648] Appl Environ Microbiol. 1987 Dec;53(12):2804-7 [3435144] Biochem Biophys Res Commun. 1990 Jan 15;166(1):38-42 [2405850] Adv Appl Microbiol. 1983;29:53-92 [6650265] J Gen Microbiol. 1979 Jul;113(1):127-36 [501330] Appl Environ Microbiol. 1976 May;31(5):743-5 [5954] J Agric Food Chem. 1975 Nov-Dec;23(6):1132-4 [1194578] J Am Oil Chem Soc. 1971 Feb;48(2):93-4 [5546372] Biochim Biophys Acta. 1964 May 11;86:418-20 [14171025] Can J Microbiol. 1987 Dec;33(12):1108-12 [3128394] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immediate and delayed molecular response of human keratinocytes to solar-simulated irradiation. AN - 72146486; 1656141 AB - The clinical and histologic events in human skin after a single ultraviolet exposure are well documented; and both in vitro and in vivo studies have established immunologic and mutagenic effects of ultraviolet rays on cells. However, little is known about the ultraviolet damage/repair response at the level of gene induction. This study examines the genetic response in cultured human keratinocytes exposed to a single solar-simulated ultraviolet dose and harvested at 1, 4, 8, 24, and 48 hours postirradiation for northern blot analysis using c-DNA probes to well studied stress related genes, heat shock protein 70 and ubiquitin; to a recently cloned gene associated with growth arrest and DNA damage (gadd 153); to c-myc and c-fos, two proto-oncogenes known to be associated with cell growth and differentiation; and to glyceraldehyde phosphate dehydrogenase, known to be involved in cellular intermediary metabolism, gadd 153 and c-fos mRNA levels are increased early (1-4 hours) in keratinocytes, at a time when the cells appear indistinguishable from nonirradiated controls. At the same early time points, the c-myc mRNA level is decreased. Heat shock protein 70 and ubiquitin transcripts are detectable under basal conditions but are not increased by ultraviolet exposure; although at later time points (24-48 hours), when there is morphologic evidence of cell damage and downregulation of the otherwise constitutively expressed gene glyceraldehyde phosphate dehydrogenase, their unchanged steady state levels of mRNA constitute relative over expression. Irradiation of cells with the same solar-simulated ultraviolet dose filtered to remove the shortest and most damaging wavelengths results in a similar pattern of early gene induction, even though cell growth and survival are unaffected. These data suggest that two classes of genes participate in the response to ultraviolet rays: early genes whose mRNA levels are increased (gadd 153, c-fos) or decreased (c-myc) before or independent of any morphologic evidence of cell damage and late genes that are relatively increased (heat shock protein 70, ubiquitin) or decreased (glyceraldehyde phosphate dehydrogenase) in expression when morphologic cell damage is present. The early events may be a direct response to ultraviolet irradiation, whereas the late events may represent a secondary response to stress. JF - Laboratory investigation; a journal of technical methods and pathology AU - Garmyn, M AU - Yaar, M AU - Holbrook, N AU - Gilchrest, B A AD - United States Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts. Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 471 EP - 478 VL - 65 IS - 4 SN - 0023-6837, 0023-6837 KW - gadd 153 KW - DNA Probes KW - 0 KW - Heat-Shock Proteins KW - Proto-Oncogene Proteins c-fos KW - Proto-Oncogene Proteins c-myc KW - RNA, Messenger KW - Ubiquitins KW - Glyceraldehyde-3-Phosphate Dehydrogenases KW - EC 1.2.1.- KW - Index Medicus KW - Blotting, Northern KW - Humans KW - Ubiquitins -- analysis KW - Heat-Shock Proteins -- analysis KW - Base Sequence KW - Cells, Cultured KW - Glyceraldehyde-3-Phosphate Dehydrogenases -- analysis KW - Proto-Oncogene Proteins c-fos -- analysis KW - Molecular Sequence Data KW - Cell Survival -- radiation effects KW - Proto-Oncogene Proteins c-myc -- analysis KW - Time Factors KW - Keratinocytes -- radiation effects KW - Ultraviolet Rays KW - Keratinocytes -- chemistry KW - RNA, Messenger -- radiation effects KW - Keratinocytes -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72146486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Laboratory+investigation%3B+a+journal+of+technical+methods+and+pathology&rft.atitle=Immediate+and+delayed+molecular+response+of+human+keratinocytes+to+solar-simulated+irradiation.&rft.au=Garmyn%2C+M%3BYaar%2C+M%3BHolbrook%2C+N%3BGilchrest%2C+B+A&rft.aulast=Garmyn&rft.aufirst=M&rft.date=1991-10-01&rft.volume=65&rft.issue=4&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Laboratory+investigation%3B+a+journal+of+technical+methods+and+pathology&rft.issn=00236837&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-07 N1 - Date created - 1991-11-07 N1 - Date revised - 2017-01-13 N1 - Gene symbol - gadd 153 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The Myth of the Coming Labor Shortage AN - 61280236; 92Z0103 AB - The assertion that the US faces a coming labor shortage, propagated by officials in both the Ronald Reagan & George Bush administrations, holds that rapid growth of high-skilled professional & technical occupations is increasing the demand for workers of higher skill, resulting in a mismatch between available jobs & available workers. This view, it is argued, is incorrect, because it overstates the anticipated growth of professional & technical jobs. It is maintained that a substantial upgrading of skills & wages cannot be achieved only by improving the skills of the most disadvantaged & relying on market forces to do the rest; rather, the skills of the work force as a whole, both new entrants & those already at work, must be upgraded. 2 References. W. Howard JF - The American Prospect AU - Mishel, Lawrence AU - Teixeira, Ruy A AD - c/o Teixeira -- Economic Research Service Dept Agriculture, 14th St & Independence Ave SW Washington DC 20250-0001 Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 98 EP - 103 IS - 7 SN - 1049-7285, 1049-7285 KW - labor shortage myth, US, skills issues KW - Myths KW - Labor Policy KW - Work Skills KW - Forces And Relations of Production KW - Labor Force KW - United States of America KW - Labor Supply KW - article KW - 0686: complex organization; modes of production, employment patterns, social division of labor UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61280236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+Prospect&rft.atitle=The+Myth+of+the+Coming+Labor+Shortage&rft.au=Mishel%2C+Lawrence%3BTeixeira%2C+Ruy+A&rft.aulast=Mishel&rft.aufirst=Lawrence&rft.date=1991-10-01&rft.volume=&rft.issue=7&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=The+American+Prospect&rft.issn=10497285&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - APROEY N1 - SubjectsTermNotLitGenreText - United States of America; Work Skills; Labor Supply; Labor Policy; Labor Force; Forces And Relations of Production; Myths ER - TY - JOUR T1 - Chemistry of smetitic and illitic phases in interstratified soil smectite AN - 50477219; 1992-016724 JF - Soil Science Society of America Journal AU - Laird, D A AU - Barak, P AU - Nater, E A AU - Dowdy, R H Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 1499 EP - 1504 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 5 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - silicates KW - clay KW - Minnesota KW - X-ray diffraction data KW - clastic sediments KW - clay mineralogy KW - smectite KW - illite KW - clay minerals KW - areal studies KW - southern Minnesota KW - sediments KW - sheet silicates KW - geochemistry KW - Mollisols KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50477219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Chemistry+of+smetitic+and+illitic+phases+in+interstratified+soil+smectite&rft.au=Laird%2C+D+A%3BBarak%2C+P%3BNater%2C+E+A%3BDowdy%2C+R+H&rft.aulast=Laird&rft.aufirst=D&rft.date=1991-10-01&rft.volume=55&rft.issue=5&rft.spage=1499&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 20 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - areal studies; clastic sediments; clay; clay mineralogy; clay minerals; geochemistry; illite; Minnesota; Mollisols; sediments; sheet silicates; silicates; smectite; soils; southern Minnesota; United States; X-ray diffraction data ER - TY - JOUR T1 - Hydrologic Impacts of Oak Harvesting and Evaluation of the Modified Universal Soil Loss Equation AN - 19137107; 9206165 AB - Two Sierra foothill watersheds were monitored to learn what effects selective oak removal would have on watershed hydrology and water quality. The data were also used to generate sediment rating curves and evaluate the modified universal soil loss equation (MUSLE). Annual sediment rating curves better accounted for the variability in precipitation events from year to year, which may be at least as important as total rainfall, on the amount of runoff and sediment yield. Measurements before and after oak removal indicated small but not statistically significant increases in the runoff/rainfall ratio and fewer tons of sediment leaving the watershed after cutting. The MUSLE predicted quite accurately when calibrated for these watersheds. (See also W92-06163) (Author's abstract) JF - In: Proceedings of the Symposium on Oak Woodlands and Hardwood Rangeland Management, October 31-November 2, 1990, Davis, CA. USDA Forest Service General Technical Report PSW-126, March 1991. p 221-224, 4 tab, 13 ref. AU - Epifanio, C R AU - Singer, MJ AU - Huang, X AD - USDA, Soil Conservation Service, Willows, CA Y1 - 1991/10// PY - 1991 DA - Oct 1991 KW - Water Resources Abstracts KW - *Forestry KW - *Oak trees KW - *Soil erosion KW - *Soil water KW - *Universal soil loss equation KW - Forest watersheds KW - Precipitation KW - Rainfall-runoff relationships KW - Sediment yield KW - SW 2060:Effects on water of human nonwater activities KW - SW 0860:Water and plants KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19137107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Hydrologic+Impacts+of+Oak+Harvesting+and+Evaluation+of+the+Modified+Universal+Soil+Loss+Equation&rft.au=Epifanio%2C+C+R%3BSinger%2C+MJ%3BHuang%2C+X&rft.aulast=Epifanio&rft.aufirst=C&rft.date=1991-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Exposing Loblolly Pine Seedlings to Acid Precipitation and Ozone: Effects on Soil Rhizosphere Chemistry AN - 19136768; 9204074 AB - Rhizosphere and non-rhizosphere soils were sampled in association with the roots of field-grown, 1-year-old loblolly pine (Pinus taeda L.) that had been exposed to simulated acid precipitation and ozone treatments. Soil samples adjacent to roots and from the bulk soil were analyzed separately for H(+), Al(3+), Ca(2+), and Mg(2+) concentrations. For the acid precipitation treatment, H(+) levels were significantly greater in the rhizosphere compared with the bulk soil, but no clear trend could be attributed to acidic precipitation levels. Hydrogen ion concentrations associated with the ozone levels, at times, differed significantly by treatment, but not between rhizosphere and bulk soil. Rain pH and ozone level produced no statistically significant distinction between rhizosphere and non-rhizosphere soil for Al(3+), Ca(2+), or Mg(2+). However, after combining rhizosphere and non-rhizosphere soil samples, Al(3+) concentrations were found to generally increase as rain pH decreased, whereas Ca(2+) and Mg(2+) followed the opposite pattern. No such pattern for ozone level was apparent. Significant interactions between acid precipitation and ozone treatments were not detected. (Author's abstract) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 4, p 828-832, October/December 1991. 1 fig, 4 tab, 20 ref. AU - Ruark, G A AU - Thornton, F C AU - Tiarks, A E AU - Lockaby, B G AU - Chappelka, AH AD - USDA-FS, 3041 Cornwallis Road, P.O. Box 12254, Research Triangle Park, NC 27709 Y1 - 1991/10// PY - 1991 DA - Oct 1991 KW - Water Resources Abstracts KW - *Acid rain KW - *Acid rain effects KW - *Air pollution effects KW - *Ozone KW - *Rhizosphere KW - *Trees KW - Acidity KW - Aluminum KW - Calcium KW - Cations KW - Hydrogen ion concentration KW - Magnesium KW - Pine trees KW - Root zone KW - Soil chemistry KW - Water pollution effects KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19136768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Exposing+Loblolly+Pine+Seedlings+to+Acid+Precipitation+and+Ozone%3A+Effects+on+Soil+Rhizosphere+Chemistry&rft.au=Ruark%2C+G+A%3BThornton%2C+F+C%3BTiarks%2C+A+E%3BLockaby%2C+B+G%3BChappelka%2C+AH&rft.aulast=Ruark&rft.aufirst=G&rft.date=1991-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Effects of U.S. Affirmative Action Programs on Women's Employment AN - 1761713158; 199202488 AB - The impact of equal employment opportunity (EEO) & affirmative action programs implemented in 1965 on the employment of females (Fs) vs males (Ms) in the US is examined using time-series data covering 1947-1988. Results show that Fs ages 20-54 benefited through greater employment stability during 1965-1980, but lost some gains during 1981-1988 during the Reagan administration; Ms in the same age group experienced the opposite effect. Findings also reveal that EEO & affirmative action programs increased the share of projected employment among Fs ages 20-64, while decreasing the share of projected employment of Ms in comparable age groups. 2 Tables, 34 References. Adapted from the source document. JF - Journal of Policy Modeling AU - Uri, Noel D AU - Mixon, J Wilson, Jr AD - Economic Research Service US Dept Agriculture, Washington DC 20005 Y1 - 1991/10// PY - 1991 DA - October 1991 SP - 367 EP - 382 VL - 13 IS - 3 SN - 0161-8938, 0161-8938 KW - female vs male employment, US KW - equal employment opportunity/affirmative action programs KW - 1947-1988 time-series data KW - Sexual Inequality KW - Working Women KW - Employment Opportunities KW - Affirmative Action KW - United States of America KW - Social Programs KW - article KW - 7210: social policy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761713158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocialservices&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Policy+Modeling&rft.atitle=Effects+of+U.S.+Affirmative+Action+Programs+on+Women%27s+Employment&rft.au=Uri%2C+Noel+D%3BMixon%2C+J+Wilson%2C+Jr&rft.aulast=Uri&rft.aufirst=Noel&rft.date=1991-10-01&rft.volume=13&rft.issue=3&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Journal+of+Policy+Modeling&rft.issn=01618938&rft_id=info:doi/ LA - English DB - Social Services Abstracts N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - United States of America; Working Women; Affirmative Action; Employment Opportunities; Sexual Inequality; Social Programs ER - TY - JOUR T1 - A zein signal sequence functions as a signal-anchor when fused to maize alcohol dehydrogenase. AN - 72109800; 1716987 AB - A chimeric gene, preZad, was constructed encoding a zein signal sequence fused precisely to the amino terminus of maize alcohol dehydrogenase 1. Translocation and processing of this chimeric preZad protein were assayed in vitro using a rabbit reticulocyte lysate translation system supplemented with canine pancreatic microsomes. PreZad was cotranslationally translocated across the vesicular membranes. Unexpectedly, the signal sequence was not removed although a suitable cleavage site was preserved and presented within the vesicle lumen. Failure to cleave the signal sequence was apparently not due to the lack of a beta-turn near the processing site. When a beta-turn was introduced near the cleavage site through site-directed mutagenesis, no processing was observed. PreZad was not solubilized by alkaline treatment of the microsomes, indicating an integral membrane association. Resistance to proteolysis, in the absence of detergent, indicates that preZad is associated with the membranes in a type II orientation (C-terminus in and N-terminus outside the vesicles). Analysis of truncated versions of preZad showed that it is the uncleaved signal sequence that functions as a signal-anchor. Changing the ratio of net charge flanking the signal sequence to less than 1 (N-terminal:C-terminal) did not alter the type II membrane orientation, as would have been predicted by the 'positive-in rule'. Our results provide additional insight into the role of the passenger protein and signal sequence-flanking regions in recognition of a signal peptidase processing site, and the orientation of insertion of a signal-anchor sequence into the endoplasmic reticulum membrane. JF - Biochimica et biophysica acta AU - Shatters, R G AU - Miernyk, J A AD - Seed Biosynthesis Research Unit, USDA, Agriculture Research Service, National Center for Agricultural Utilization Research, Peoria, IL. Y1 - 1991/09/30/ PY - 1991 DA - 1991 Sep 30 SP - 179 EP - 188 VL - 1068 IS - 2 SN - 0006-3002, 0006-3002 KW - preZad KW - Protein Precursors KW - 0 KW - Protein Sorting Signals KW - RNA KW - 63231-63-0 KW - Zein KW - 9010-66-6 KW - Alcohol Dehydrogenase KW - EC 1.1.1.1 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Protein Biosynthesis KW - Base Sequence KW - Chimera KW - Zea mays -- chemistry KW - Molecular Sequence Data KW - Transcription, Genetic KW - Amino Acid Sequence KW - Plasmids KW - Translocation, Genetic KW - RNA -- biosynthesis KW - Protein Conformation KW - Binding Sites KW - Protein Sorting Signals -- genetics KW - Zein -- genetics KW - Alcohol Dehydrogenase -- genetics KW - Protein Precursors -- genetics KW - Protein Sorting Signals -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72109800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochimica+et+biophysica+acta&rft.atitle=A+zein+signal+sequence+functions+as+a+signal-anchor+when+fused+to+maize+alcohol+dehydrogenase.&rft.au=Shatters%2C+R+G%3BMiernyk%2C+J+A&rft.aulast=Shatters&rft.aufirst=R&rft.date=1991-09-30&rft.volume=1068&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Biochimica+et+biophysica+acta&rft.issn=00063002&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-20 N1 - Date created - 1991-11-20 N1 - Date revised - 2017-01-13 N1 - Gene symbol - preZad N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Simple noninvasive method to test efficacy of drugs in the eradication of Helicobacter pylori infection: the example of combined bismuth subsalicylate and nitrofurantoin. AN - 85223591; pmid-1882794 AB - Eradication of Helicobacter pylori infections has proved to be difficult. There is a need both for improved therapies and for ways to rapidly identify therapies that show sufficient promise to be worth pursuing. The objectives of this study were to evaluate the value of a therapeutic regimen of a bismuth salt plus nitrofurantoin for eradication of infection by H. pylori and to determine the validity/utility of the urea breath test in monitoring the progress of a clinical trial. We used an 80% eradication rule to define a promising therapeutic regimen, i.e., a regimen that eradicated the infection (no evidence of infection by H. pylori 4 wk after termination of therapy) in at least 80% of the individuals treated. Eighteen men (median age 38) with documented infection by H. pylori completed the study. At the end-of-study evaluation, H. pylori infection was eradicated (negative urea breath test, culture, and histology) in only one of 18 (5.5%) subjects; 15 were positive by the urea breath test, 16 by culture, 15 by Warthin-Starry stain, and 16 by the presence of acute-on-chronic inflammation. Using the 80% eradication rule, any one of these tests alone would have identified that the combination of antimicrobials tested was not effective in the eradication of the infection. We conclude that the urea breath test is a simple, noninvasive, cost-effective method to separate promising from unpromising candidate therapies and for the evaluation of new therapeutic concepts. JF - The American Journal of Gastroenterology AU - Graham, D Y AU - Klein, P D AU - Evans, D G AU - Evans, D J AU - Alpert, L C AU - Opekun, A AU - Jerdack, G R AU - Morgan, D R AD - Department of Medicine, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas. PY - 1991 SP - 1158 EP - 1162 VL - 86 IS - 9 SN - 0002-9270, 0002-9270 KW - Support, U.S. Gov't, P.H.S. KW - Organometallic Compounds KW - Human KW - Salicylates KW - Urea KW - Helicobacter Infections KW - Bismuth KW - Drug Therapy, Combination KW - Nitrofurantoin KW - Adult KW - Middle Age KW - Enzyme-Linked Immunosorbent Assay KW - Support, U.S. Gov't, Non-P.H.S. KW - Support, Non-U.S. Gov't KW - Gastritis KW - Male KW - Helicobacter pylori KW - Breath Tests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85223591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+Journal+of+Gastroenterology&rft.atitle=Simple+noninvasive+method+to+test+efficacy+of+drugs+in+the+eradication+of+Helicobacter+pylori+infection%3A+the+example+of+combined+bismuth+subsalicylate+and+nitrofurantoin.&rft.au=Graham%2C+D+Y%3BKlein%2C+P+D%3BEvans%2C+D+G%3BEvans%2C+D+J%3BAlpert%2C+L+C%3BOpekun%2C+A%3BJerdack%2C+G+R%3BMorgan%2C+D+R&rft.aulast=Graham&rft.aufirst=D&rft.date=1991-09-01&rft.volume=86&rft.issue=9&rft.spage=1158&rft.isbn=&rft.btitle=&rft.title=The+American+Journal+of+Gastroenterology&rft.issn=00029270&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - Environmental protection during animal disease eradication programmes. AN - 72637956; 1782433 AB - This paper identifies animal disease eradication (ADE) programme activities which may have a negative impact on the environment. It suggests ways to lessen the impact of such activities without compromising the programme objectives. Reducing losses from livestock and poultry diseases with prevention, control and eradication programmes produces a net positive impact on the environment. An Environmental Impact Statement (EIS) should be integrated into the planning of any ADE programme. Decision-makers should give due consideration to the environmental effects of ADE programme activities, together with cost, personnel needs and other, more traditional, management concerns. A better environment will be a supplemental benefit from ADE programmes. JF - Revue scientifique et technique (International Office of Epizootics) AU - McDaniel, H A AD - Veterinary Services, United States Department of Agriculture (USDA), Hyattsville, MD 20782. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 867 EP - 884 VL - 10 IS - 3 SN - 0253-1933, 0253-1933 KW - Disinfectants KW - 0 KW - Pesticides KW - Index Medicus KW - Animals KW - Environmental Pollution -- prevention & control KW - Animal Diseases -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72637956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Revue+scientifique+et+technique+%28International+Office+of+Epizootics%29&rft.atitle=Environmental+protection+during+animal+disease+eradication+programmes.&rft.au=McDaniel%2C+H+A&rft.aulast=McDaniel&rft.aufirst=H&rft.date=1991-09-01&rft.volume=10&rft.issue=3&rft.spage=867&rft.isbn=&rft.btitle=&rft.title=Revue+scientifique+et+technique+%28International+Office+of+Epizootics%29&rft.issn=02531933&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-17 N1 - Date created - 1992-03-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunosuppressive effects of Fusarium moniliforme corn cultures in chickens. AN - 72631182; 1780260 AB - In the present study, the toxic and immunosuppressive effects of three isolates of Fusarium moniliforme (MRC 826, MRC 1069, and RRC 408) in male White Leghorn chickens were investigated. Chickens were fed diets containing .5, 5.0, or 25% of F. moniliforme corn cultures for 6 wk. About 30% of the chickens fed RRC 408 had leg weakness. Relative weights of bursae of Fabricius were lower in birds fed all doses of MRC 826. Birds fed 5.0 or 25% MRC 1069 had lower relative spleen weights. Thymus weights were lower in birds fed .5 and 5.0% RRC 408, but not in those fed 25%. Immunosuppressive effects were determined by measuring serum levels of primary and secondary agglutinin responses to SRBC and Brucella abortus. Birds fed 5.0 or 25% MRC 826 were immunosuppressed, as shown by low antibody titers to B. abortus in both the primary and secondary responses. Isolate MRC 1069 caused a decrease in secondary response to SRBC at 25% and B. abortus at the 5.0 and 25% of culture material. The RRC 408 isolated reduced the secondary response to SRBC at all doses and response to B. abortus at 5.0 and 25% of culture material. These results appear to be the first report that feed contaminated with F. moniliforme can produce deficiencies in the immune system of chickens. JF - Poultry science AU - Marijanovic, D R AU - Holt, P AU - Norred, W P AU - Bacon, C W AU - Voss, K A AU - Stancel, P C AU - Ragland, W L AD - USDA, Agricultural Research Service, Athens, Georgia 30613. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 1895 EP - 1901 VL - 70 IS - 9 SN - 0032-5791, 0032-5791 KW - Antibodies, Bacterial KW - 0 KW - Antigens, Bacterial KW - Mutagens KW - Polyenes KW - fusarin C KW - 79748-81-5 KW - Index Medicus KW - Animals KW - Bursa of Fabricius -- growth & development KW - Brucella abortus -- immunology KW - Mutagens -- toxicity KW - Antigens, Bacterial -- immunology KW - Bursa of Fabricius -- drug effects KW - Thymus Gland -- drug effects KW - Thymus Gland -- growth & development KW - Zea mays KW - Body Weight -- drug effects KW - Spleen -- growth & development KW - Polyenes -- toxicity KW - Antibodies, Bacterial -- biosynthesis KW - Spleen -- drug effects KW - Antibody Formation -- drug effects KW - Male KW - Organ Size -- drug effects KW - Immune Tolerance -- drug effects KW - Fusarium -- physiology KW - Food Microbiology KW - Chickens -- immunology KW - Chickens -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72631182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Immunosuppressive+effects+of+Fusarium+moniliforme+corn+cultures+in+chickens.&rft.au=Marijanovic%2C+D+R%3BHolt%2C+P%3BNorred%2C+W+P%3BBacon%2C+C+W%3BVoss%2C+K+A%3BStancel%2C+P+C%3BRagland%2C+W+L&rft.aulast=Marijanovic&rft.aufirst=D&rft.date=1991-09-01&rft.volume=70&rft.issue=9&rft.spage=1895&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-03-11 N1 - Date created - 1992-03-11 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Metabolism of meadowfoam oil fatty acids in mice. AN - 72586724; 1762520 AB - Meadowfoam oil is unusual because over 95% of the fatty acids are 20- and 22-carbon aliphatic acids with cis double bonds located principally at the 5- and/or 13-position. Since little information is available on the metabolism of the 5c-20:1 and 5c,13c-22:2 fatty acids, an exploratory study in mice was conducted to investigate the metabolism of purified samples of the free fatty acids isolated from meadowfoam oil, and to determine the effect of meadowfoam oil on weight gain and tissue lipid composition. Mice fed diets containing 5% by wt of the purified 5c-20:1 or 5c,13c-22:2 for 6 days exhibited no apparent physiological problems. Total liver lipids from mice fed the purified fatty acid diets contained mean values of 2.0% 5c-20:1 and 2.1% 5c,13c-22:2; total heart lipids contained 1.7% 5c-20:1 and 10.7% 5c,13c-22:2. Liver total phospholipids from mice fed a 5% meadowfoam oil diet for 19 wk contained 1.4% 5c-20:1 and 1.9% 5c,13c-22:2. There was no evidence of desaturation, elongation or retroconversion. Weight gain for mice fed the meadowfoam oil diet for 19 wk was similar to mice fed corn oil, and was higher than for mice fed hydrogenated cottonseed oil. Considering the high 5c-20:1 and 5c,13c-22:2 content of the diets, the percentages of these fatty acids in mouse tissue lipids from both the short- and long-term studies were low. Weight gain was surprisingly good since the meadowfoam oil diet was essential fatty acid-deficient. Results of this initial investigation suggest that the 5c-20:1 and 5c,13c-22:2 fatty acids were utilized primarily for energy.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Lipids AU - Emken, E A AU - Adlof, R O AU - Abraham, S AD - National Center for Agricultural Utilization Research, ARS, Peoria, Illinois 61604. Y1 - 1991/09// PY - 1991 DA - September 1991 SP - 736 EP - 742 VL - 26 IS - 9 SN - 0024-4201, 0024-4201 KW - Fatty Acids, Unsaturated KW - 0 KW - Plant Oils KW - Triglycerides KW - meadowfoam oil KW - Index Medicus KW - Body Weight KW - Plants -- chemistry KW - Animals KW - Myocardium -- chemistry KW - Subcellular Fractions -- chemistry KW - Food, Formulated KW - Mice KW - Diet KW - Mice, Inbred BALB C KW - Liver -- chemistry KW - Female KW - Plant Oils -- metabolism KW - Triglycerides -- toxicity KW - Fatty Acids, Unsaturated -- metabolism KW - Plant Oils -- toxicity KW - Triglycerides -- metabolism KW - Fatty Acids, Unsaturated -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72586724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lipids&rft.atitle=Metabolism+of+meadowfoam+oil+fatty+acids+in+mice.&rft.au=Emken%2C+E+A%3BAdlof%2C+R+O%3BAbraham%2C+S&rft.aulast=Emken&rft.aufirst=E&rft.date=1991-09-01&rft.volume=26&rft.issue=9&rft.spage=736&rft.isbn=&rft.btitle=&rft.title=Lipids&rft.issn=00244201&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-13 N1 - Date created - 1992-02-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Group Development in the Natural Environment. Expectations, Outcomes, and Techniques AN - 20805549; 10903667 AB - Implicit in many programs featuring a human-natural environment interaction has been the belief that group development is a desirable outcome. This study investigated the effectiveness of one natural environment-based program in facilitating the development of groups. In addition, the variables of gender, age, identification with the group, course type, and course length were also studied for their influence on group development. The results suggest that this particular type of program could be effective in enhancing group development. In addition, the variables of sex, type of course, and group identification had varying levels of impact on the development of individual groups. JF - Environment & Behavior AU - Ewert, Alan AU - Heywood, John AD - USDA Forest Service Y1 - 1991/09// PY - 1991 DA - Sep 1991 SP - 592 EP - 615 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU VL - 23 IS - 5 SN - 0013-9165, 0013-9165 KW - Environment Abstracts; Environmental Engineering Abstracts KW - Age KW - Gender KW - EE 10:General Environmental Engineering KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20805549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+%26+Behavior&rft.atitle=Group+Development+in+the+Natural+Environment.+Expectations%2C+Outcomes%2C+and+Techniques&rft.au=Ewert%2C+Alan%3BHeywood%2C+John&rft.aulast=Ewert&rft.aufirst=Alan&rft.date=1991-09-01&rft.volume=23&rft.issue=5&rft.spage=592&rft.isbn=&rft.btitle=&rft.title=Environment+%26+Behavior&rft.issn=00139165&rft_id=info:doi/10.1177%2F0013916591235004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Gender; Age DO - http://dx.doi.org/10.1177/0013916591235004 ER - TY - JOUR T1 - The influence of carbon and nitrogen nutrition on fusarin C biosynthesis by Fusarium moniliforme. AN - 72600363; 1769527 AB - The influence of various carbon and nitrogen sources on fusarin C synthesis was examined in submerged cultures of Fusarium moniliforme NRRL 13616. Using a zinc-deficient, synthetic medium, highest levels of fusarin C were produced by cultures grown with urea or ammonium sulfate as the nitrogen source and fructose, sucrose, or glucose as the carbon source. In media supplemented with various concentrations of glucose and ammonium sulfate, glucose concentrations which provided excess carbohydrate significantly increased fusarin C synthesis, regardless of the ammonium sulfate concentration. JF - FEMS microbiology letters AU - Jackson, M A AU - Freer, S N AD - National Center for Agricultural Utilization Research, USDA, Peoria, IL 61604. Y1 - 1991/08/15/ PY - 1991 DA - 1991 Aug 15 SP - 323 EP - 328 VL - 66 IS - 3 SN - 0378-1097, 0378-1097 KW - Mutagens KW - 0 KW - Polyenes KW - fusarin C KW - 79748-81-5 KW - Urea KW - 8W8T17847W KW - Glucose KW - IY9XDZ35W2 KW - Zinc KW - J41CSQ7QDS KW - Ammonium Sulfate KW - SU46BAM238 KW - Index Medicus KW - Urea -- metabolism KW - Glucose -- metabolism KW - Zinc -- metabolism KW - Ammonium Sulfate -- metabolism KW - Fusarium -- metabolism KW - Polyenes -- metabolism KW - Fusarium -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72600363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+microbiology+letters&rft.atitle=The+influence+of+carbon+and+nitrogen+nutrition+on+fusarin+C+biosynthesis+by+Fusarium+moniliforme.&rft.au=Jackson%2C+M+A%3BFreer%2C+S+N&rft.aulast=Jackson&rft.aufirst=M&rft.date=1991-08-15&rft.volume=66&rft.issue=3&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=FEMS+microbiology+letters&rft.issn=03781097&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-02-26 N1 - Date created - 1992-02-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Economic effects of horn fly (Diptera: Muscidae) populations on beef cattle exposed to three pesticide treatment regimes. AN - 72759131; 1842800 AB - Horn flies could not be maintained below 50 per animal with sprays or dusts during a 21-wk study. However, weights of cows and calves and condition scores of cows were not influenced by suppression of Haematobia irritans (L.) populations. Results show that cattle in northwest Florida can tolerate average populations of greater than or equal to 200 flies for 70 d with no adverse economic effects. Spray treatments providing the best fly control were Lintox-D and Ra-Vap. The most economical products for use were Del-Tox, Lintox-D, and Ra-Vap. JF - Journal of economic entomology AU - Hogsette, J A AU - Prichard, D L AU - Ruff, J P AD - USDA-ARS, Medical and Veterinary Entomology Research Laboratory, Gainesville, Florida 32604. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1270 EP - 1274 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Aerosols KW - 0 KW - Organothiophosphorus Compounds KW - Pesticides KW - Tetrachlorvinphos KW - DM33MW89QU KW - dioxathion KW - J2DF82JA7N KW - Index Medicus KW - Animals KW - Cattle KW - Female KW - Ectoparasitic Infestations -- drug therapy KW - Ectoparasitic Infestations -- economics KW - Ectoparasitic Infestations -- veterinary KW - Cattle Diseases -- drug therapy KW - Muscidae KW - Cattle Diseases -- economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72759131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Economic+effects+of+horn+fly+%28Diptera%3A+Muscidae%29+populations+on+beef+cattle+exposed+to+three+pesticide+treatment+regimes.&rft.au=Hogsette%2C+J+A%3BPrichard%2C+D+L%3BRuff%2C+J+P&rft.aulast=Hogsette&rft.aufirst=J&rft.date=1991-08-01&rft.volume=84&rft.issue=4&rft.spage=1270&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-01-27 N1 - Date created - 1993-01-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Interactions of carbaryl with susceptible and multiresistant house flies (Diptera: Muscidae). AN - 72756788; 1842792 AB - The in vivo and in vitro fate of [14C]carbaryl was compared in adult male and female house flies from an insecticide-susceptible (S) strain and a resistant (R) strain with multiple resistance to different classes of insecticides. Cuticular penetration of topically applied carbaryl (0.01 microgram/insect) was very rapid and rates were essentially the same among males and females of both strains. Rates of penetration were dramatically reduced as the concentration of applied carbaryl was increased over a range of 0.01-5.0 micrograms/insect. In vivo and in vitro tests demonstrated that the R strain had an enhanced capability for the metabolic degradation of carbaryl. In evaluations of topical toxicity and in vitro metabolic degradation, coadministration of the metabolic synergists piperonyl butoxide (a microsomal oxidase inhibitor) and S,S,S-tributyl phosphorothioate (DEF, an esterase inhibitor) with carbaryl provided conclusive evidence that microsomal oxidases were the major factor in enhanced metabolism and that hydrolytic enzymes had only a minor effect. Studies of the in vitro inhibition of acetylcholinesterase (AChE) activity by carbaryl demonstrated that there was no difference between males and females of a given strain and that the R strain AChE was considerably less sensitive to inhibition. These tests also indicated that homogenates of brains from the R strain contained more than one form of AChE with different sensitivities to the inhibitor. This information and results of toxicity tests with other insecticides suggest that the R strain is not homozygous in its resistance to carbaryl. JF - Journal of economic entomology AU - Bull, D L AU - Pryor, N W AD - Food Animal Protection Research Laboratory, USDA-ARS, College Station, Texas 77845. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1145 EP - 1153 VL - 84 IS - 4 SN - 0022-0493, 0022-0493 KW - Cholinesterase Inhibitors KW - 0 KW - Carbaryl KW - R890C8J3N1 KW - Index Medicus KW - Animals KW - Insecticide Resistance KW - Male KW - Female KW - Houseflies -- metabolism KW - Carbaryl -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72756788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Interactions+of+carbaryl+with+susceptible+and+multiresistant+house+flies+%28Diptera%3A+Muscidae%29.&rft.au=Bull%2C+D+L%3BPryor%2C+N+W&rft.aulast=Bull&rft.aufirst=D&rft.date=1991-08-01&rft.volume=84&rft.issue=4&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-01-27 N1 - Date created - 1993-01-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Solid-phase extraction of pesticides from water: possible interferences from dissolved organic material. AN - 72482219; 1952081 AB - A multiresidue analysis for trifluralin, simazine, atrazine, propazine, diazinon, parathion-methyl, alachlor, malathion, parathion, chlorpyrifos, pendimethalin, methidathion, and DEF in water that utilizes liquid-solid extraction (LSE) with octadecyl-bonded silica cartridges (C18BSCs) followed by gas chromatography/mass spectrometric analysis was developed. Recoveries of most pesticides were greater than 80% with C18BSCs from fortified water at concentration levels from about 1 to 500 ppb. Recoveries with C18BSCs, from an optically adjusted humic acid solution (10 ppm dissolved organic carbon) made to simulate a natural water with a high dissolved organic content, ranged from 29 to 153% and in general were lower than recoveries obtained from pure water. 14C-Labeled diazinon and parathion were recovered from the humic acid solution at levels of 57 and 68%, respectively, with C18BSCs; the remainder of the labeled pesticides was found in the cartridge eluents. Partition coefficients with human acid were calculated based on recovery of 14C-labeled pesticides from the C18BSCs. JF - Analytical chemistry AU - Johnson, W E AU - Fendinger, N J AU - Plimmer, J R AD - Natural Resources Institute, Environmental Chemistry Laboratory, USDA-ARS, Beltsville, Maryland 20705. Y1 - 1991/08/01/ PY - 1991 DA - 1991 Aug 01 SP - 1510 EP - 1513 VL - 63 IS - 15 SN - 0003-2700, 0003-2700 KW - Indicators and Reagents KW - 0 KW - Pesticide Residues KW - Pesticides KW - Water Pollutants, Chemical KW - Index Medicus KW - Pesticide Residues -- analysis KW - Pesticides -- analysis KW - Water Pollutants, Chemical -- analysis KW - Pesticides -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72482219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Solid-phase+extraction+of+pesticides+from+water%3A+possible+interferences+from+dissolved+organic+material.&rft.au=Johnson%2C+W+E%3BFendinger%2C+N+J%3BPlimmer%2C+J+R&rft.aulast=Johnson&rft.aufirst=W&rft.date=1991-08-01&rft.volume=63&rft.issue=15&rft.spage=1510&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-12-04 N1 - Date created - 1991-12-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Tumor necrosis factor as a potential mediator of acute metabolic and hormonal responses to endotoxemia in calves. AN - 72162465; 1928916 AB - The effects of coliform endotoxin (E) and recombinant bovine tumor necrosis factor alpha (TNF) were compared with respect to clinical signs of disease and changes in plasma metabolite and pituitary and pancreatic hormone concentrations in calves. In addition, changes in plasma TNF concentration during each challenge exposure were quantitated by use of radioimmunoassay. Healthy Holstein bull calves with mean body weight of 90 kg were each given, in order, on different days, saline solution (5.0 ml, IV, day 1, n = 4), E (type 055:B5, 1.0 micrograms/kg of body weight IV, day 2, n = 4) and TNF (5.0 micrograms/kg IV, day 9, n = 3). Jugular venous blood samples, rectal temperature reading, and PCV were obtained at hourly intervals before (2 hours) and after challenge exposure. The PCV increased (P less than 0.05) after E and TNF administrations for the first 5 hours, then returned to normal in calves given E, but decreased and remained low in calves given TNF through 24 hours. Plasma triglyceride and nonesterified free fatty acids concentrations were increased through 10 hours (P less than 0.05) after E administration, whereas triglyceride and nonesterified free fatty acids concentrations were not significantly affected by TNF administration. Increase in blood glucose concentration at 1 hour after administration of E and TNF was followed by prolonged hypoglycemia that lasted through 6 hours. Changes in plasma insulin concentration paralleled the observed changes in glucose concentration, initially increased at 2 hours after E and TNF (P less than 0.05) administrations, but then tended to decrease below control values thereafter.(ABSTRACT TRUNCATED AT 250 WORDS) JF - American journal of veterinary research AU - Kenison, D C AU - Elsasser, T H AU - Fayer, R AD - Ruminant Nutrition Laboratory, Livestock and Poultry Science Institute, USDA, Agricultural Research Service, Beltsville, MD 20705. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1320 EP - 1326 VL - 52 IS - 8 SN - 0002-9645, 0002-9645 KW - Blood Glucose KW - 0 KW - Endotoxins KW - Fatty Acids, Nonesterified KW - Insulin KW - Triglycerides KW - Tumor Necrosis Factor-alpha KW - Luteinizing Hormone KW - 9002-67-9 KW - Growth Hormone KW - 9002-72-6 KW - Index Medicus KW - Acute Disease KW - Triglycerides -- blood KW - Animals KW - Regression Analysis KW - Growth Hormone -- blood KW - Insulin -- blood KW - Blood Glucose -- analysis KW - Hematocrit -- veterinary KW - Cattle KW - Body Temperature KW - Luteinizing Hormone -- blood KW - Fatty Acids, Nonesterified -- blood KW - Male KW - Shock, Septic -- veterinary KW - Tumor Necrosis Factor-alpha -- toxicity KW - Tumor Necrosis Factor-alpha -- analysis KW - Shock, Septic -- etiology KW - Endotoxins -- toxicity KW - Cattle Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72162465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Tumor+necrosis+factor+as+a+potential+mediator+of+acute+metabolic+and+hormonal+responses+to+endotoxemia+in+calves.&rft.au=Kenison%2C+D+C%3BElsasser%2C+T+H%3BFayer%2C+R&rft.aulast=Kenison&rft.aufirst=D&rft.date=1991-08-01&rft.volume=52&rft.issue=8&rft.spage=1320&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-31 N1 - Date created - 1991-10-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of a hydrated sodium calcium aluminosilicate on growing turkey poults during aflatoxicosis. AN - 72149162; 1656420 AB - Effects of adding .5% of a hydrated sodium calcium aluminosilicate (HSCAS) to diets containing 1 or .5 mg aflatoxin (AF)/kg were determined in male turkey poults from 1 day to 3 wk of age. Body weight gains were significantly reduced by 51 and 19% in turkey poults fed 1 and .5 mg AF/kg, respectively; efficiency of feed utilization was not affected. There were no deaths in poults fed .5 mg AF/kg; however, the mortality rate was 88% in poults fed 1 mg AF/kg. The addition of .5% dietary HSCAS resulted in a 68% decrease in mortality to 28% for the 3-wk experimental period. Treatment-related changes in relative organ weights, hematological values, serum biochemical values, and enzyme activities were observed. The HSCAS in the absence of AF did not alter any of the parameters measured. The HSCAS diminished the adverse effects of AF on body weight gains, most relative organ weights, hematological values, serum biochemical values, and enzyme activities associated with .5 mg AF/kg, but not 1 mg AF/kg. These findings indicate that HSCAS may diminish many of the adverse effects of AF in an AF-sensitive species, the turkey. JF - Poultry science AU - Kubena, L F AU - Huff, W E AU - Harvey, R B AU - Yersin, A G AU - Elissalde, M H AU - Witzel, D A AU - Giroir, L E AU - Phillips, T D AU - Petersen, H D AD - USDA, Agricultural Research Service, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1823 EP - 1830 VL - 70 IS - 8 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - Enzymes KW - Zeolites KW - 1318-02-1 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Stomach, Avian -- drug effects KW - Enzymes -- blood KW - Blood Chemical Analysis KW - Liver -- drug effects KW - Kidney -- drug effects KW - Pancreas -- drug effects KW - Bursa of Fabricius -- drug effects KW - Male KW - Organ Size -- drug effects KW - Aflatoxins -- poisoning KW - Poultry Diseases -- prevention & control KW - Aluminum Silicates -- pharmacology KW - Turkeys KW - Mycotoxicosis -- prevention & control KW - Aluminum Silicates -- therapeutic use KW - Mycotoxicosis -- veterinary KW - Poultry Diseases -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72149162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Effects+of+a+hydrated+sodium+calcium+aluminosilicate+on+growing+turkey+poults+during+aflatoxicosis.&rft.au=Kubena%2C+L+F%3BHuff%2C+W+E%3BHarvey%2C+R+B%3BYersin%2C+A+G%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BGiroir%2C+L+E%3BPhillips%2C+T+D%3BPetersen%2C+H+D&rft.aulast=Kubena&rft.aufirst=L&rft.date=1991-08-01&rft.volume=70&rft.issue=8&rft.spage=1823&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-11-06 N1 - Date created - 1991-11-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The California 1980 Medfly Eradication Program: An Analysis of Decision Making under Nonroutine Conditions AN - 61263478; 92Y7230 AB - Information that was overlooked by advisors & managers in the 1980 California Medfly Eradication Program is discussed. While the medfly problem was approached from three different perspectives -- rational, organizational, cognitive -- information considered crucial under nonroutine conditions was obscured, & public attention & controversy over the program prevented interactive solutions. Conclusions note the importance of cross-cueing perspectives in order to identify sources of uncertainty, recognize feedback, & respond adaptively. 4 Tables, 2 Figures, 67 References. Adapted from the source document. JF - Technological Forecasting and Social Change AU - Lorraine, Hilary AD - USDA-APHIS-S&T American Embassy, APO Miami FL 34024 Y1 - 1991/08// PY - 1991 DA - August 1991 SP - 1 EP - 32 VL - 40 IS - 1 SN - 0040-1625, 0040-1625 KW - decision making, information use, nonroutine conditions, illustrative example KW - 1980 Medfly eradication program KW - California KW - Information KW - Decision Making KW - Utilization KW - article KW - 2462: policy, planning, forecasting; policy sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61263478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technological+Forecasting+and+Social+Change&rft.atitle=The+California+1980+Medfly+Eradication+Program%3A+An+Analysis+of+Decision+Making+under+Nonroutine+Conditions&rft.au=Lorraine%2C+Hilary&rft.aulast=Lorraine&rft.aufirst=Hilary&rft.date=1991-08-01&rft.volume=40&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Technological+Forecasting+and+Social+Change&rft.issn=00401625&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - TFSCB3 N1 - SubjectsTermNotLitGenreText - Decision Making; Information; Utilization ER - TY - JOUR T1 - Determination of ability of a thymidine kinase-negative deletion mutant of bovine herpesvirus-1 to cause abortion in cattle. AN - 72090295; 1654031 AB - The Cooper isolate of bovine herpesvirus-1, which causes abortion in cattle, was used to construct a thymidine kinase-negative (TK-) deletion mutant virus. Twelve heifers were inoculated IV at 25 to 29 weeks of pregnancy with either TK- or thymidine kinase-positive (TK+) Cooper virus. All heifers developed fevers of 1 to 2 C during the first week after inoculation. Temperatures of TK+ inoculates were slightly higher and remained above normal a few days longer than in TK- inoculates. Viremia was detected in 5 of 6 TK+ inoculates and in all 6 TK- inoculates. More virus isolations were made from nasal and vaginal swab specimens of TK+ inoculates than from swab specimens of TK- inoculates. All heifers developed virus neutralizing antibody within 14 days after inoculation and antibody titers were similar between the 2 groups. None of the TK- inoculated heifers aborted and their calves did not have neutralizing antibody at birth. Abortion occurred in 5 of 6 heifers given TK+ virus. All aborted fetuses were infected with bovine herpesvirus-1, as demonstrated by virus isolation or detection of viral antigen in fetal tissues. These results indicate that inactivation of the TK gene reduces abortifacient activity of bovine herpesvirus-1. JF - American journal of veterinary research AU - Miller, J M AU - Whetstone, C A AU - Bello, L J AU - Lawrence, W C AD - Virology Cattle Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, IA 50010. Y1 - 1991/07// PY - 1991 DA - July 1991 SP - 1038 EP - 1043 VL - 52 IS - 7 SN - 0002-9645, 0002-9645 KW - TK KW - Antibodies, Viral KW - 0 KW - Antigens, Viral KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Index Medicus KW - Animals KW - Open Reading Frames KW - Placenta -- microbiology KW - Plasmids KW - Autoradiography KW - Vagina -- microbiology KW - Antigens, Viral -- analysis KW - Pregnancy KW - Antibodies, Viral -- biosynthesis KW - Mutagenesis KW - Nasal Mucosa -- microbiology KW - Cattle KW - Body Temperature KW - Restriction Mapping KW - Neutralization Tests KW - Viremia -- veterinary KW - Immunohistochemistry KW - Female KW - Abortion, Veterinary -- microbiology KW - Herpesvirus 1, Bovine -- pathogenicity KW - Herpesvirus 1, Bovine -- immunology KW - Cattle Diseases -- microbiology KW - Thymidine Kinase -- genetics KW - Herpesvirus 1, Bovine -- genetics KW - Herpesvirus 1, Bovine -- enzymology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72090295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Determination+of+ability+of+a+thymidine+kinase-negative+deletion+mutant+of+bovine+herpesvirus-1+to+cause+abortion+in+cattle.&rft.au=Miller%2C+J+M%3BWhetstone%2C+C+A%3BBello%2C+L+J%3BLawrence%2C+W+C&rft.aulast=Miller&rft.aufirst=J&rft.date=1991-07-01&rft.volume=52&rft.issue=7&rft.spage=1038&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-17 N1 - Date created - 1991-10-17 N1 - Date revised - 2017-01-13 N1 - Gene symbol - TK N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of level of endophyte infection, nitrogen fertilization rate, grazing period, and paddock exchange on some chemical properties of four bovine tissues. AN - 72074708; 1653201 AB - Three grazing experiments were conducted to determine the effect of level of endophyte infection, rate of N fertilization of tall fescue grass, grazing period, and paddock exchange on selected chemical properties of four bovine carcass tissues. Samples of semitendinosus and longissimus muscle and of subcutaneous and perinephric adipose tissue were excised from the left side of each carcass. In Exp. 1, percentage of stearic acid was higher (P less than .05) and percentages of palmitoleic and oleic acid were lower (P less than .05) in all tissues from steers grazed on LELN Au-Triumph fescue than in tissues from steers grazed on LELN KY-31 fescue. Grazing periods of 175 or 245 d or paddock exchange (Exp. 2) had no significant effect on proximate composition of semitendinosus and longissimus muscles; however, moisture content was higher (P less than .05) in the semitendinosus muscle from steers grazed on 100% (100E) endophyte-infected KY-31 fescue. Forage treatment, grazing period, and paddock exchange (Exp. 2 and 3) had no significant effect on percentage of saturated fatty acids in the subcutaneous, semitendinosus, and longissimus tissue samples. In Exp. 2 and 3, percentages of saturated fatty acids were higher (P less than .05) in subcutaneous and perinephric adipose tissue samples from steers grazed on 100E than in samples from steers grazed on zero endophyte (OE) fescue.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Journal of animal science AU - Townsend, W E AU - Snook, M E AU - Stuedemann, J A AU - Wilson, R L AD - Poult. Processing and Meat Quality Res. Unit., USDA-ARS, Richard B. Russell Agricultural Research Center, Athens, GA 30613. Y1 - 1991/07// PY - 1991 DA - July 1991 SP - 2871 EP - 2882 VL - 69 IS - 7 SN - 0021-8812, 0021-8812 KW - Fatty Acids KW - 0 KW - Fatty Acids, Monounsaturated KW - Fertilizers KW - Oleic Acids KW - Palmitic Acids KW - Stearic Acids KW - Water KW - 059QF0KO0R KW - palmitoleic acid KW - 209B6YPZ4I KW - Oleic Acid KW - 2UMI9U37CP KW - stearic acid KW - 4ELV7Z65AP KW - Index Medicus KW - Water -- analysis KW - Oleic Acids -- analysis KW - Animals KW - Animal Feed KW - Hydrogen-Ion Concentration KW - Stearic Acids -- analysis KW - Palmitic Acids -- analysis KW - Time Factors KW - Fatty Acids -- analysis KW - Muscles -- chemistry KW - Food Microbiology KW - Cattle -- metabolism KW - Poaceae -- microbiology KW - Adipose Tissue -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72074708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+animal+science&rft.atitle=Effect+of+level+of+endophyte+infection%2C+nitrogen+fertilization+rate%2C+grazing+period%2C+and+paddock+exchange+on+some+chemical+properties+of+four+bovine+tissues.&rft.au=Townsend%2C+W+E%3BSnook%2C+M+E%3BStuedemann%2C+J+A%3BWilson%2C+R+L&rft.aulast=Townsend&rft.aufirst=W&rft.date=1991-07-01&rft.volume=69&rft.issue=7&rft.spage=2871&rft.isbn=&rft.btitle=&rft.title=Journal+of+animal+science&rft.issn=00218812&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-09 N1 - Date created - 1991-10-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Novel occurrence of cyclopiazonic acid in sunflower seeds. AN - 80703419; 1858315 AB - Cyclopiazonic acid (CPA), a secondary metabolite produced by several species of Aspergillus and Penicillium, was detected in moldy sunflower seed screenings fed to sows who experienced conception problems and feed refusal. Tandem mass spectrometry confirmed the CPA which was estimated by thin-layer chromatography (TLC) to be present at 10 ppm. A Penicillium species was isolated from the moldy seeds, but in culture it did not produce CPA. JF - Veterinary and human toxicology AU - Ross, P F AU - Rice, L G AU - Casper, H H AU - Crenshaw, J D AU - Richard, J L AD - Animal and Plant Health Inspection Service, Science and Technology, National Veterinary Services Laboratories, Ames, IA 50010. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 284 EP - 285 VL - 33 IS - 3 SN - 0145-6296, 0145-6296 KW - Indoles KW - 0 KW - cyclopiazonic acid KW - X9TLY4580Z KW - Index Medicus KW - Swine KW - Animals KW - Chromatography, Thin Layer -- veterinary KW - Mass Spectrometry -- veterinary KW - Appetite -- drug effects KW - Female KW - Seeds -- analysis KW - Indoles -- isolation & purification KW - Indoles -- poisoning KW - Swine Diseases -- chemically induced KW - Fertilization -- drug effects KW - Helianthus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80703419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+human+toxicology&rft.atitle=Novel+occurrence+of+cyclopiazonic+acid+in+sunflower+seeds.&rft.au=Ross%2C+P+F%3BRice%2C+L+G%3BCasper%2C+H+H%3BCrenshaw%2C+J+D%3BRichard%2C+J+L&rft.aulast=Ross&rft.aufirst=P&rft.date=1991-06-01&rft.volume=33&rft.issue=3&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+human+toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-23 N1 - Date created - 1991-08-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - The individual and combined toxicity of kojic acid and aflatoxin in broiler chickens. AN - 72081928; 1886843 AB - The individual and combined effects of kojic acid and aflatoxin were studied in male broiler chicks (Peterson x Hubbard). The experiment had a two by two factorial arrangement of treatments with dietary treatments of 0 and 2,500 mg kojic acid/kg feed and 0 and 2.5 mg aflatoxin/kg feed. The broilers were obtained at 1 day of age and housed in electrically heated batteries with feed and water available for ad libitum intake until they reached 3 wk of age. The toxicity of kojic acid was characterized by significant (P less than .05) reductions in body weight, the relative weight of the bursa of Fabricius, serum cholesterol concentration, and serum alkaline phosphatase activity, and by significant (P less than .05) increases in the relative weight of the pancreas, proventriculus, and gizzard, and serum concentrations of uric acid and triglycerides. Aflatoxicosis was characterized by significant (P less than .05) reductions in body weight, serum concentrations of total protein, albumin, cholesterol, and inorganic phosphorus, serum glutamic oxalacetic transaminase activity, and mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. Significant (P less than .05) increases in the relative weight of the liver, kidney, spleen, pancreas, proventriculus, and heart, and the serum pyruvic transaminase activity were also caused by aflatoxin alone. The only significant (P less than .05) interaction between kojic acid and aflatoxin, which can best be described as antagonistic, was seen through an increase in mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration. These data indicate that kojic acid is not an aflatoxin synergist at the levels used in the present study. JF - Poultry science AU - Giroir, L E AU - Huff, W E AU - Kubena, L F AU - Harvey, R B AU - Elissalde, M H AU - Witzel, D A AU - Yersin, A G AU - Ivie, G W AD - USDA, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 1351 EP - 1356 VL - 70 IS - 6 SN - 0032-5791, 0032-5791 KW - Aflatoxins KW - 0 KW - Mycotoxins KW - Pyrones KW - kojic acid KW - 6K23F1TT52 KW - Index Medicus KW - Animals KW - Drug Interactions KW - Random Allocation KW - Kidney -- drug effects KW - Heart -- drug effects KW - Proventriculus -- drug effects KW - Bursa of Fabricius -- drug effects KW - Pancreas -- drug effects KW - Liver -- drug effects KW - Body Weight -- drug effects KW - Mycotoxicosis -- etiology KW - Gizzard, Avian -- drug effects KW - Spleen -- drug effects KW - Male KW - Organ Size -- drug effects KW - Chickens -- physiology KW - Pyrones -- toxicity KW - Chickens -- blood KW - Chickens -- growth & development KW - Aflatoxins -- toxicity KW - Mycotoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72081928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=The+individual+and+combined+toxicity+of+kojic+acid+and+aflatoxin+in+broiler+chickens.&rft.au=Giroir%2C+L+E%3BHuff%2C+W+E%3BKubena%2C+L+F%3BHarvey%2C+R+B%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BYersin%2C+A+G%3BIvie%2C+G+W&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-06-01&rft.volume=70&rft.issue=6&rft.spage=1351&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-08 N1 - Date created - 1991-10-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Concentrations of fumonisin B1 in feeds associated with animal health problems. AN - 72081668; 1886638 AB - Ninety-eight samples of feeds associated with 44 cases of equine leukoencephalomalacia (ELEM) and 83 samples of feed associated with 42 cases of a porcine pulmonary edema syndrome (PPE) were analyzed for fumonisin B1 (FB1). For comparison purposes, 51 feed samples not associated with PPE or ELEM were also analyzed. Feed associated with ELEM contained FB1 ranging from less than 1 microgram/g to 126 micrograms/g with 75% of the cases having at least 1 sample above 10 micrograms/g. Feeds associated with PPE ranged from less than 1 microgram/g to 330 micrograms/g with 71% of the cases having at least 1 sample greater than 10 micrograms/g. Quantitation was by high performance liquid chromatography (HPLC)/fluorescence using the fluorescamine derivative with confirmation by thin layer chromatography (TLC) and/or gas chromatography/mass spectroscopy (GC/MS). JF - Mycopathologia AU - Ross, P F AU - Rice, L G AU - Plattner, R D AU - Osweiler, G D AU - Wilson, T M AU - Owens, D L AU - Nelson, H A AU - Richard, J L AD - US Department of Agriculture, Animal and Plant Health Inspection Service, National Veterinary Services Laboratories, Ames, IA 50010. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 129 EP - 135 VL - 114 IS - 3 SN - 0301-486X, 0301-486X KW - Carcinogens, Environmental KW - 0 KW - Fumonisins KW - Mycotoxins KW - fumonisin B1 KW - 3ZZM97XZ32 KW - Index Medicus KW - Swine KW - Pulmonary Edema -- veterinary KW - Animals KW - Carcinogens, Environmental -- adverse effects KW - Zea mays KW - Gas Chromatography-Mass Spectrometry KW - Horses KW - Encephalomalacia -- etiology KW - Chromatography, Thin Layer KW - Pulmonary Edema -- etiology KW - Carcinogens, Environmental -- analysis KW - Encephalomalacia -- veterinary KW - Chromatography, High Pressure Liquid KW - Swine Diseases -- etiology KW - Food Microbiology KW - Animal Feed -- adverse effects KW - Horse Diseases -- etiology KW - Mycotoxins -- adverse effects KW - Animal Feed -- analysis KW - Mycotoxins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72081668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mycopathologia&rft.atitle=Concentrations+of+fumonisin+B1+in+feeds+associated+with+animal+health+problems.&rft.au=Ross%2C+P+F%3BRice%2C+L+G%3BPlattner%2C+R+D%3BOsweiler%2C+G+D%3BWilson%2C+T+M%3BOwens%2C+D+L%3BNelson%2C+H+A%3BRichard%2C+J+L&rft.aulast=Ross&rft.aufirst=P&rft.date=1991-06-01&rft.volume=114&rft.issue=3&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Mycopathologia&rft.issn=0301486X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-07 N1 - Date created - 1991-10-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Red imported fire ant (Hymenoptera: Formicidae) control with a corn grit bait of fenoxycarb without soybean oil. AN - 72077543; 1885843 AB - The standard fenoxycarb fire ant bait formulation (Logic), composed of pregel defatted corn grits and soybean oil toxicant, was modified by eliminating the soybean oil. This formulation without soybean oil contained greater than 2 times more fenoxycarb and was as effective as the standard bait formulation against laboratory colonies of red imported fire ant, Solenopsis invicta Buren. In field tests, the modified and standard baits were equally effective in controlling fire ants after 6, 12, and 18 wk. Individual worker ants obtained from plots treated with fenoxycarb baits without soybean oil had greater than 47 times less fenoxycarb than did workers from the plots treated with the standard fenoxycarb baits containing soybean oil. JF - Journal of economic entomology AU - Williams, D F AU - Banks, W A AU - Vander Meer, R K AU - Lofgren, C S AD - Insects Affecting Man and Animals Research Laboratory, USDA-ARS, Gainesville, Florida 32604. Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 814 EP - 817 VL - 84 IS - 3 SN - 0022-0493, 0022-0493 KW - Carbamates KW - 0 KW - Phenylcarbamates KW - Soybean Oil KW - 8001-22-7 KW - fenoxycarb KW - JEN0LSV1G9 KW - Index Medicus KW - Animals KW - Zea mays KW - Ants KW - Insect Control -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72077543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+economic+entomology&rft.atitle=Red+imported+fire+ant+%28Hymenoptera%3A+Formicidae%29+control+with+a+corn+grit+bait+of+fenoxycarb+without+soybean+oil.&rft.au=Williams%2C+D+F%3BBanks%2C+W+A%3BVander+Meer%2C+R+K%3BLofgren%2C+C+S&rft.aulast=Williams&rft.aufirst=D&rft.date=1991-06-01&rft.volume=84&rft.issue=3&rft.spage=814&rft.isbn=&rft.btitle=&rft.title=Journal+of+economic+entomology&rft.issn=00220493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-09 N1 - Date created - 1991-10-09 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Soil erosion varies during the crop year AN - 52668179; 1997-075984 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Meyer, L D AU - Harmon, W C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - soils KW - hydrology KW - granulometry KW - erosion KW - rills KW - rainfall KW - agriculture KW - optimization KW - erosion rates KW - size distribution KW - runoff KW - sediments KW - interrill erosion KW - soil erosion KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52668179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Soil+erosion+varies+during+the+crop+year&rft.au=Meyer%2C+L+D%3BHarmon%2C+W+C%3BAnonymous&rft.aulast=Meyer&rft.aufirst=L&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 12 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2015 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; erosion; erosion rates; granulometry; hydrology; interrill erosion; land use; optimization; rainfall; rills; runoff; sediments; size distribution; soil erosion; soils ER - TY - JOUR T1 - Effect of time in system on water erosion parameters with ridge tillage AN - 52666616; 1997-075986 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Norton, L D AU - Brown, L C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - United States KW - soils KW - hydrology KW - experimental studies KW - erosion KW - shear stress KW - rainfall KW - drainage KW - agriculture KW - suspended materials KW - erosion rates KW - simulation KW - preventive measures KW - case studies KW - transport KW - Clinton County Ohio KW - tillage KW - soil erosion KW - erodibility KW - land use KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52666616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Effect+of+time+in+system+on+water+erosion+parameters+with+ridge+tillage&rft.au=Norton%2C+L+D%3BBrown%2C+L+C%3BAnonymous&rft.aulast=Norton&rft.aufirst=L&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 15 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Paper No. 91-2017 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; case studies; Clinton County Ohio; drainage; erodibility; erosion; erosion rates; experimental studies; hydrology; land use; Ohio; preventive measures; rainfall; shear stress; simulation; soil erosion; soils; suspended materials; tillage; transport; United States ER - TY - JOUR T1 - Watertable management and water quality research in Ohio AN - 52664402; 1997-075991 JF - International Summer Meeting - American Society of Agricultural Engineers AU - Fausey, Norman R AU - Ward, Brown C AU - Brown, Larry C AU - Anonymous Y1 - 1991/06// PY - 1991 DA - June 1991 EP - unpaginated PB - American Society of Agricultural Engineers, St. Joseph, MI VL - 1991 KW - United States KW - protection KW - hydrology KW - aquifer vulnerability KW - water quality KW - concentration KW - drainage KW - agriculture KW - water management KW - research KW - irrigation KW - ground water KW - aquifers KW - water table KW - Ohio State University KW - agrochemicals KW - runoff KW - sediments KW - shallow aquifers KW - nitrate ion KW - mobility KW - soil management KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52664402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.atitle=Watertable+management+and+water+quality+research+in+Ohio&rft.au=Fausey%2C+Norman+R%3BWard%2C+Brown+C%3BBrown%2C+Larry+C%3BAnonymous&rft.aulast=Fausey&rft.aufirst=Norman&rft.date=1991-06-01&rft.volume=1991&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Summer+Meeting+-+American+Society+of+Agricultural+Engineers&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 1991 international summer meeting of the American Society of Agricultural Engineers N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Availability - National Agricultural Library, Beltsville, MD, United States N1 - PubXState - MI N1 - SuppNotes - Paper No. 91-2024 N1 - Last updated - 2012-06-07 N1 - CODEN - #03997 N1 - SubjectsTermNotLitGenreText - agriculture; agrochemicals; aquifer vulnerability; aquifers; concentration; drainage; ground water; hydrology; irrigation; mobility; nitrate ion; Ohio; Ohio State University; protection; research; runoff; sediments; shallow aquifers; soil management; United States; water management; water quality; water table ER - TY - JOUR T1 - Aggregate stability of an eroded and desurfaced Typic Arguistoll AN - 50564883; 1991-036437 JF - Soil Science Society of America Journal AU - Gollany, H T AU - Schumacher, T E AU - Evenson, P D AU - Lindstrom, M J AU - Lemme, G D Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 811 EP - 816 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Lake County South Dakota KW - physical properties KW - soil surveys KW - surveys KW - properties KW - Madison South Dakota KW - Mollisols KW - South Dakota KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50564883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Aggregate+stability+of+an+eroded+and+desurfaced+Typic+Arguistoll&rft.au=Gollany%2C+H+T%3BSchumacher%2C+T+E%3BEvenson%2C+P+D%3BLindstrom%2C+M+J%3BLemme%2C+G+D&rft.aulast=Gollany&rft.aufirst=H&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Lake County South Dakota; Madison South Dakota; Mollisols; physical properties; properties; soil surveys; soils; South Dakota; surveys; United States ER - TY - JOUR T1 - Sodium-calcium exchange with anion exclusion and weathering corrections AN - 50558307; 1991-036431 JF - Soil Science Society of America Journal AU - Amrhein, C AU - Suarez, D L Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 698 EP - 706 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - calcium KW - Torriorthents KW - alkaline earth metals KW - metals KW - alkali metals KW - ion exchange KW - Torifluvents KW - sodium KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50558307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Sodium-calcium+exchange+with+anion+exclusion+and+weathering+corrections&rft.au=Amrhein%2C+C%3BSuarez%2C+D+L&rft.aulast=Amrhein&rft.aufirst=C&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=698&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 43 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; geochemistry; ion exchange; metals; sodium; soils; Torifluvents; Torriorthents ER - TY - JOUR T1 - Organic polymers' effect on soil shear strength and detachments by single raindrops AN - 50558062; 1991-036436 JF - Soil Science Society of America Journal AU - Barry, P V AU - Stott, D E AU - Turco, R F AU - Bradford, J M Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 799 EP - 804 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - organic materials KW - shear strength KW - organic compounds KW - rainfall KW - effects KW - properties KW - polymers KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50558062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Organic+polymers%27+effect+on+soil+shear+strength+and+detachments+by+single+raindrops&rft.au=Barry%2C+P+V%3BStott%2C+D+E%3BTurco%2C+R+F%3BBradford%2C+J+M&rft.aulast=Barry&rft.aufirst=P&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=799&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 39 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - effects; organic compounds; organic materials; polymers; properties; rainfall; shear strength; soils ER - TY - JOUR T1 - Kinetics of sulfate retention on soil as affected by solution pH and concentration AN - 50557998; 1991-036430 JF - Soil Science Society of America Journal AU - Schnabel, R R AU - Potter, R M Y1 - 1991/06// PY - 1991 DA - June 1991 SP - 693 EP - 698 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 3 SN - 0361-5995, 0361-5995 KW - soils KW - sulfate ion KW - Ultisols KW - kinetics KW - Hapludults KW - geochemistry KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50557998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Kinetics+of+sulfate+retention+on+soil+as+affected+by+solution+pH+and+concentration&rft.au=Schnabel%2C+R+R%3BPotter%2C+R+M&rft.aulast=Schnabel&rft.aufirst=R&rft.date=1991-06-01&rft.volume=55&rft.issue=3&rft.spage=693&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 19 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - geochemistry; Hapludults; kinetics; pH; soils; sulfate ion; Ultisols ER - TY - JOUR T1 - Soil Water Capacity Prediction AN - 19097458; 9200821 AB - Wet soils, those with low-tension water, are defined as soils holding water at a tension of 10 hPa or less. Data from soil clods equilibrated at 5 hPa absorption tensions were used to develop a regression equation for predicting the water contents of wet soils. A test using a different set of non-correlated data showed good agreement between results as predicted by the equation and measured values of soil water at 5 hPa. Soil clods equilibrated at 5 hPa tension held water that approximated the water quantity held after free wetting. (Author's abstract) JF - Geoderma GEDMAB, Vol. 49, No. 1/2, p 77-81, June 1991. 1 fig, 2 ref. AU - Berdanier, C R AU - Ross, S J AU - Grossman, R B AD - South National Technical Center, Soil Conservation Service, Department of Agriculture, Fort Worth, TX Y1 - 1991/06// PY - 1991 DA - Jun 1991 KW - Water Resources Abstracts KW - *Soil moisture retention KW - *Soil water KW - *Soil water potential KW - Absorption KW - Regression analysis KW - Statistical analysis KW - Tension KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19097458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Soil+Water+Capacity+Prediction&rft.au=Berdanier%2C+C+R%3BRoss%2C+S+J%3BGrossman%2C+R+B&rft.aulast=Berdanier&rft.aufirst=C&rft.date=1991-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Comparative fate of the tritiated trichothecene mycotoxin, T-2 toxin, in chickens and ducks. AN - 80693438; 1852689 AB - A tritiated preparation of the trichothecene mycotoxin, T-2 toxin, was administered as a single oral dose to 21-day-old male broiler (Hubbard x Hubbard) chickens and White Pekin ducks. There were few significant differences between the two species in metabolism, tissue retention, and excretion of T-2 toxin and its metabolites. On the basis of the data obtained, the differences in toxicological sensitivity to T-2 toxin known to exist between these two species cannot likely be attributed to differences in the metabolism or elimination of T-2 toxin from the body. JF - Poultry science AU - Giroir, L E AU - Ivie, G W AU - Huff, W E AD - USDA, Food Animal Protection Research Laboratory, College Station, Texas 77845. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 1138 EP - 1143 VL - 70 IS - 5 SN - 0032-5791, 0032-5791 KW - T-2 Toxin KW - I3FL5NM3MO KW - Index Medicus KW - Animals KW - Gizzard, Avian -- metabolism KW - Muscles -- metabolism KW - Chromatography, Thin Layer KW - Tissue Distribution KW - Male KW - Drug Residues -- pharmacokinetics KW - T-2 Toxin -- chemistry KW - T-2 Toxin -- pharmacokinetics KW - Ducks -- metabolism KW - Chickens -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80693438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Comparative+fate+of+the+tritiated+trichothecene+mycotoxin%2C+T-2+toxin%2C+in+chickens+and+ducks.&rft.au=Giroir%2C+L+E%3BIvie%2C+G+W%3BHuff%2C+W+E&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-05-01&rft.volume=70&rft.issue=5&rft.spage=1138&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-20 N1 - Date created - 1991-08-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A novel approach to analysis of transcriptional regulation in human cells: initial application to melanocytes and melanoma cells. AN - 80540857; 1850774 AB - An assay system for transcriptional profile analysis of cultured eukaryotic cells has been developed to simultaneously handle multiple samples in a rapid, sensitive, and internally controlled manner. The methodology incorporates a microtiter plate assay system, a rapid cell-harvest enzyme-assay technique, and the bacterial reporter genes beta-glucuronidase and beta-galactosidase. We demonstrate, using beta-actin and SV40 (late) transcription promoting sequences, that this technically refined microtiter-triton-lysate (MTL) assay methodology can readily differentiate between the transcriptional states of human melanocytes before and after pharmacologic stimulation and malignantly transformed versus normal cell environments. Differences in the transcriptional environments are revealed by the relative expression of transcription element probes. The transcriptional activity ratio of the beta-actin compared to the SV40 late transcription promoting sequences was approximately 1:2 in primary cultured melanocytes, 2:1 in 12-0-tetradecanoyl phorbol-13-acetate (TPA)-treated melanocytes and 1:4 in the Tang melanoma cell line. Because this MTL assay methodology can accommodate a panel of transcription element probes, we anticipate that the resultant transcriptional profiles will prove useful in deciphering the diverse transcriptional changes that occur within normally regulated and malignantly transformed cells. JF - The Journal of investigative dermatology AU - Grichnik, J M AU - Gilchrest, B A AD - United States Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts 02111. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 742 EP - 746 VL - 96 IS - 5 SN - 0022-202X, 0022-202X KW - Actins KW - 0 KW - beta-Galactosidase KW - EC 3.2.1.23 KW - Glucuronidase KW - EC 3.2.1.31 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Tumor Cells, Cultured KW - Cells, Cultured KW - Simian virus 40 -- genetics KW - Humans KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Glucuronidase -- analysis KW - beta-Galactosidase -- analysis KW - Actins -- pharmacology KW - Melanocytes -- metabolism KW - Transcription, Genetic KW - Melanoma -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80540857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+investigative+dermatology&rft.atitle=A+novel+approach+to+analysis+of+transcriptional+regulation+in+human+cells%3A+initial+application+to+melanocytes+and+melanoma+cells.&rft.au=Grichnik%2C+J+M%3BGilchrest%2C+B+A&rft.aulast=Grichnik&rft.aufirst=J&rft.date=1991-05-01&rft.volume=96&rft.issue=5&rft.spage=742&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+investigative+dermatology&rft.issn=0022202X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-31 N1 - Date created - 1991-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Chronic diuretic therapy with moderate doses of triamterene is not associated with folate deficiency. AN - 80528240; 2019791 AB - The diuretic drug triamterene has previously been shown to be a competitive inhibitor of folate absorption in the rat intestine (J Lab Clin Med 1986;108:272-6). We therefore investigated whether human subjects who are taking the drug on a long-term basis are at increased risk of folate deficiency. In each of two free-living populations, a study was performed to compare the folate status of triamterene users with those not taking the drug. The first population consisted of 272 elderly individuals not living in institutions who were participants in a nutrition status survey and who were taking a variety of antihypertensive medications; 32 of these individuals were daily users of triamterene. The hemoglobin concentration, red blood cell (RBC) count, and mean corpuscular volume (MCV) values were not significantly different between the triamterene users and nonusers. The female triamterene users had a slightly higher serum folate level than the female nonusers (p less than 0.04); a similar pattern was observed among the men, although the difference was not statistically significant. The second population consisted of 27 individuals attending a hypertension clinic; 18 subjects were taking 50 to 150 mg of triamterene per day and nine were taking antihypertensive drugs other than triamterene. The hemoglobin concentration, RBC count, MCV, serum folate values, and RBC folate values were found to not differ significantly between the triamterene users and the hypertensive controls (p greater than 0.05). These data suggest that chronic triamterene administration in individuals not living in institutions, at the doses examined in this study, is not associated with indications of folate deficiency. JF - The Journal of laboratory and clinical medicine AU - Mason, J B AU - Zimmerman, J AU - Otradovec, C L AU - Selhub, J AU - Rosenberg, I H AD - Bioavailability Laboratory, USDA Human Nutrition Research Center on Aging, Tufts University, Boston. Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 365 EP - 369 VL - 117 IS - 5 SN - 0022-2143, 0022-2143 KW - Triamterene KW - WS821Z52LQ KW - Abridged Index Medicus KW - Index Medicus KW - Dose-Response Relationship, Drug KW - Humans KW - Aged KW - Male KW - Hypertension -- metabolism KW - Female KW - Triamterene -- administration & dosage KW - Triamterene -- adverse effects KW - Folic Acid Deficiency -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80528240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+laboratory+and+clinical+medicine&rft.atitle=Chronic+diuretic+therapy+with+moderate+doses+of+triamterene+is+not+associated+with+folate+deficiency.&rft.au=Mason%2C+J+B%3BZimmerman%2C+J%3BOtradovec%2C+C+L%3BSelhub%2C+J%3BRosenberg%2C+I+H&rft.aulast=Mason&rft.aufirst=J&rft.date=1991-05-01&rft.volume=117&rft.issue=5&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+laboratory+and+clinical+medicine&rft.issn=00222143&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Remote sensing and landslide hazard assessment AN - 50517090; 1991-058450 JF - Proceedings of the Thematic Conference on Geologic Remote Sensing AU - McKean, J AU - Buechel, S AU - Gaydos, L J AU - Rogers, Robert H Y1 - 1991/05// PY - 1991 DA - May 1991 SP - 729 EP - 742 PB - Environmental Research Institute of Michigan, Ann Arbor, MI VL - 8 SN - 1067-0106, 1067-0106 KW - United States KW - geophysical surveys KW - geologic hazards KW - debris flows KW - San Francisco California KW - California KW - San Francisco County California KW - landslides KW - engineering geology KW - mass movements KW - surveys KW - risk assessment KW - applications KW - slope stability KW - San Mateo County California KW - remote sensing KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50517090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.atitle=Remote+sensing+and+landslide+hazard+assessment&rft.au=McKean%2C+J%3BBuechel%2C+S%3BGaydos%2C+L+J%3BRogers%2C+Robert+H&rft.aulast=McKean&rft.aufirst=J&rft.date=1991-05-01&rft.volume=8&rft.issue=&rft.spage=729&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Thematic+Conference+on+Geologic+Remote+Sensing&rft.issn=10670106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eighth thematic conference on Geologic remote sensing; exploration, engineering and environment N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 21 N1 - PubXState - MI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03135 N1 - SubjectsTermNotLitGenreText - applications; California; debris flows; engineering geology; geologic hazards; geophysical surveys; landslides; mass movements; remote sensing; risk assessment; San Francisco California; San Francisco County California; San Mateo County California; slope stability; surveys; United States ER - TY - JOUR T1 - Enzymological evidence for separate pathways for aflatoxin B1 and B2 biosynthesis. AN - 80536891; 1902378 AB - Aflatoxins B1 (AFB1) and B2 (AFB2) are biologically active secondary metabolites of Aspergillus flavus and Aspergillus parasiticus. These toxins are synthesized by the fungi from pathway precursors: sterigmatocystin (ST)----O-methylsterigmatocystin (OMST)----AFB1; dihydrosterigmatocystin (DHST)----dihydro-O-methylsterigmatocystin (DHOMST)----AFB2. The late stages of AFB1 synthesis are carried out by two enzyme activities, a methyltransferase (MT) (ST----OMST), and an oxidoreductase (OR) (OMST----AFB1). Properties of the purified MT have been identified in a previous investigation [Bhatnagar et al. (1988) Prep. Biochem. 18, 321]. In the current study, the OR was partially purified (150-fold of specific activity) from fungal cell-free extracts and characterized with extended investigation of the late stages of AFB1 and AFB2 synthesis. Whole cells of an isolate of A. flavus (SRRC 141), which produce only AFB2, were able to produce AFB1 in ST and OMST feeding studies; the results suggested that the enzymes involved in AFB2 biosynthesis also carry out AFB1 synthesis. Substrate competition experiments carried out with the OR showed that an increasing concentration of either OMST or DHOMST in the presence of a fixed, nonsaturating concentration of either DHOMST or OMST, respectively, resulted in a decline in production of one aflatoxin (B1 or B2) with a corresponding increase in the synthesis of the other toxin (B2 or B1). OMST was a preferred substrate (Km, 1.2 microM) for the oxidoreductase as compared to DHOMST (Km, 13.4 microM). Similar, substrate competition experiments showed that ST (Km, 2.0 microM) was a preferred substrate over DHST (Km, 22.5 microM) for a homogeneous MT.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Biochemistry AU - Bhatnagar, D AU - Cleveland, T E AU - Kingston, D G AD - Southern Regional Research Center, U.S. Department of Agriculture/Agricultural Research Service, New Orleans, Louisiana 70179. Y1 - 1991/04/30/ PY - 1991 DA - 1991 Apr 30 SP - 4343 EP - 4350 VL - 30 IS - 17 SN - 0006-2960, 0006-2960 KW - Aflatoxins KW - 0 KW - aflatoxin B2 KW - 7SKR7S646P KW - Aflatoxin B1 KW - 9N2N2Y55MH KW - Oxidoreductases KW - EC 1.- KW - Methyltransferases KW - EC 2.1.1.- KW - Index Medicus KW - Kinetics KW - Binding, Competitive KW - Chromatography, Liquid KW - Aflatoxins -- biosynthesis KW - Aspergillus -- enzymology KW - Oxidoreductases -- metabolism KW - Methyltransferases -- metabolism KW - Aspergillus -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80536891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Enzymological+evidence+for+separate+pathways+for+aflatoxin+B1+and+B2+biosynthesis.&rft.au=Bhatnagar%2C+D%3BCleveland%2C+T+E%3BKingston%2C+D+G&rft.aulast=Bhatnagar&rft.aufirst=D&rft.date=1991-04-30&rft.volume=30&rft.issue=17&rft.spage=4343&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-31 N1 - Date created - 1991-05-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Immunity induced in rats vaccinated with toxoid prepared from heat-labile toxin produced by Pasteurella multocida serogroup D. AN - 80660754; 2063548 AB - Rats were vaccinated with a toxoid (D-toxoid) prepared from purified heat-labile toxin (D-toxin) produced by Pasteurella multocida serogroup D. Vaccination of rats with D-toxoid prevented death and other effects of D-toxin (hepatic necrosis, development of elevated leukocyte counts, lymphopenia, neutrophilia, and elevated complement titers) that occurred in phosphate buffered saline (PBS)-vaccinated control rats. JF - Veterinary microbiology AU - Thurston, J R AU - Rimler, R B AU - Ackermann, M R AU - Cheville, N F AU - Sacks, J M AD - United States Department of Agriculture, Agricultural Research Service, Ames, IA 50010. Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 169 EP - 174 VL - 27 IS - 2 SN - 0378-1135, 0378-1135 KW - Bacterial Proteins KW - 0 KW - Bacterial Toxins KW - Pasteurella multocida toxin KW - Toxoids KW - Complement System Proteins KW - 9007-36-7 KW - Index Medicus KW - Rats KW - Weight Gain -- drug effects KW - Regression Analysis KW - Animals KW - Liver -- drug effects KW - Dose-Response Relationship, Drug KW - Complement System Proteins -- analysis KW - Male KW - Leukocyte Count KW - Pasteurella -- immunology KW - Vaccination -- veterinary KW - Toxoids -- immunology KW - Bacterial Toxins -- toxicity KW - Bacterial Toxins -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80660754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+microbiology&rft.atitle=Immunity+induced+in+rats+vaccinated+with+toxoid+prepared+from+heat-labile+toxin+produced+by+Pasteurella+multocida+serogroup+D.&rft.au=Thurston%2C+J+R%3BRimler%2C+R+B%3BAckermann%2C+M+R%3BCheville%2C+N+F%3BSacks%2C+J+M&rft.aulast=Thurston&rft.aufirst=J&rft.date=1991-04-01&rft.volume=27&rft.issue=2&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Veterinary+microbiology&rft.issn=03781135&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-08-07 N1 - Date created - 1991-08-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicity of extracts of tall larkspur (Delphinium barbeyi) in mice, hamsters, rats and sheep. AN - 80520618; 2017783 AB - Larkspur consumption is a major source of cattle losses on mountain and high plains rangelands of western North America. Our objective was to find a suitable laboratory animal model for measuring larkspur toxicity for subsequent use as an estimator of toxicity to cattle. The LD50 for subcutaneous injection and for oral gavage of extract from Delphinium barbeyi, a highly toxic and troublesome rangeland tall larkspur, was compared for mice, hamsters, rats and sheep. Similarity of primary clinical signs of poisoning and lack of significant difference in slope of the dose-response curves implied that the overall effect of the larkspur alkaloids was the same for all rodent species tested. Sheep were the most susceptible to poisoning by subcutaneous injection of larkspur extract with decreasing susceptibility in hamsters, mice and rats, but sheep had least susceptibility when comparing response to oral (by gavage) doses. Also, death occurred rapidly after gavage as compared with subcutaneous doses in mice, hamsters and rats, but was nearly the same for sheep. We conclude that, of the animals tested, mice would be the best choice for a bioassay of the toxicity of larkspur because of their high susceptibility, rapid response time, and small dose requirement. JF - Toxicology letters AU - Olsen, J D AU - Sisson, D V AD - United States Department of Agriculture, Poisonous Plant Research Laboratory, Logan, UT 84321. Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 33 EP - 41 VL - 56 IS - 1-2 SN - 0378-4274, 0378-4274 KW - Plant Extracts KW - 0 KW - Index Medicus KW - Administration, Oral KW - Animals KW - Dose-Response Relationship, Drug KW - Sheep KW - Mice KW - Rats KW - Rats, Inbred Strains KW - Injections, Subcutaneous KW - Lethal Dose 50 KW - Mesocricetus KW - Time Factors KW - Species Specificity KW - Cricetinae KW - Plant Extracts -- toxicity KW - Plant Extracts -- poisoning KW - Plant Extracts -- administration & dosage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80520618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+letters&rft.atitle=Toxicity+of+extracts+of+tall+larkspur+%28Delphinium+barbeyi%29+in+mice%2C+hamsters%2C+rats+and+sheep.&rft.au=Olsen%2C+J+D%3BSisson%2C+D+V&rft.aulast=Olsen&rft.aufirst=J&rft.date=1991-04-01&rft.volume=56&rft.issue=1-2&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Toxicology+letters&rft.issn=03784274&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-20 N1 - Date created - 1991-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Scaling water characteristics and hydraulic conductivity based on Gregson-Hector-McGowan approach AN - 50575031; 1991-032246 JF - Soil Science Society of America Journal AU - Ahuja, L R AU - Williams, R D Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 308 EP - 319 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - soils KW - experimental studies KW - water regimes KW - properties KW - hydraulic conductivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50575031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Scaling+water+characteristics+and+hydraulic+conductivity+based+on+Gregson-Hector-McGowan+approach&rft.au=Ahuja%2C+L+R%3BWilliams%2C+R+D&rft.aulast=Ahuja&rft.aufirst=L&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=308&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - experimental studies; hydraulic conductivity; properties; soils; water regimes ER - TY - JOUR T1 - Soil detachment by shallow flow at low slopes AN - 50572207; 1991-032250 JF - Soil Science Society of America Journal AU - Nearing, M A AU - Bradford, J M AU - Parker, S C Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 339 EP - 344 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - experimental studies KW - erosion KW - properties KW - Alfisols KW - Inceptisols KW - Haplaquepts KW - Indiana KW - detachability KW - surveys KW - hydraulic conductivity KW - soil erosion KW - Hapludalf KW - Ohio KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50572207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Soil+detachment+by+shallow+flow+at+low+slopes&rft.au=Nearing%2C+M+A%3BBradford%2C+J+M%3BParker%2C+S+C&rft.aulast=Nearing&rft.aufirst=M&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Alfisols; detachability; erosion; experimental studies; Haplaquepts; Hapludalf; hydraulic conductivity; Inceptisols; Indiana; Ohio; properties; soil erosion; soils; surveys; United States ER - TY - JOUR T1 - Soil detachment by single raindrops of varying kinetic energy AN - 50571312; 1991-032245 JF - Soil Science Society of America Journal AU - Sharma, P P AU - Gupta, S C AU - Rawls, W J Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 301 EP - 307 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - soils KW - erosion KW - Ultisols KW - water erosion KW - properties KW - Hapludolls KW - physical properties KW - rainsplash KW - Pellusterts KW - detachability KW - raindrops KW - Chromusterts KW - Haploborolls KW - soil erosion KW - kinetics KW - Hapludults KW - Mollisols KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50571312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Soil+detachment+by+single+raindrops+of+varying+kinetic+energy&rft.au=Sharma%2C+P+P%3BGupta%2C+S+C%3BRawls%2C+W+J&rft.aulast=Sharma&rft.aufirst=P&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 25 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Chromusterts; detachability; erosion; Haploborolls; Hapludolls; Hapludults; kinetics; Mollisols; Pellusterts; physical properties; properties; raindrops; rainsplash; soil erosion; soils; Ultisols; water erosion ER - TY - JOUR T1 - The taxadjunct problem AN - 50562303; 1991-032256 JF - Soil Science Society of America Journal AU - Nettleton, W D AU - Brasher, B R AU - Borst, G Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 421 EP - 427 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 2 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Virginia KW - South Carolina KW - Ultisols KW - Aridisols KW - California KW - Oregon KW - North Carolina KW - classification KW - Arizona KW - soil surveys KW - surveys KW - Chromusterts KW - taxonomy KW - Nevada KW - Mollisols KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50562303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=The+taxadjunct+problem&rft.au=Nettleton%2C+W+D%3BBrasher%2C+B+R%3BBorst%2C+G&rft.aulast=Nettleton&rft.aufirst=W&rft.date=1991-04-01&rft.volume=55&rft.issue=2&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 34 N1 - PubXState - WI N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Aridisols; Arizona; California; Chromusterts; classification; Mollisols; Nevada; North Carolina; Oregon; soil surveys; soils; South Carolina; surveys; taxonomy; Ultisols; United States; Virginia ER - TY - JOUR T1 - Ground water quality implications of soil conservation measures; an economic perspective AN - 50283955; 1994-011300 JF - Water Resources Bulletin AU - Setia, Parveen AU - Piper, Steven Y1 - 1991/04// PY - 1991 DA - April 1991 SP - 201 EP - 208 PB - American Water Resources Association, Herndon, VA VL - 27 IS - 2 SN - 0043-1370, 0043-1370 KW - United States KW - soils KW - water quality KW - migration KW - erosion KW - pollutants KW - herbicides KW - surface water KW - agriculture KW - pollution KW - mathematical models KW - ground water KW - Corn Belt KW - models KW - triazines KW - organic compounds KW - conservation KW - atrazine KW - runoff KW - economics KW - pesticides KW - leaching KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50283955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Ground+water+quality+implications+of+soil+conservation+measures%3B+an+economic+perspective&rft.au=Setia%2C+Parveen%3BPiper%2C+Steven&rft.aulast=Setia&rft.aufirst=Parveen&rft.date=1991-04-01&rft.volume=27&rft.issue=2&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1994-01-01 N1 - Number of references - 21 N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - WARBAQ N1 - SubjectsTermNotLitGenreText - agriculture; atrazine; conservation; Corn Belt; economics; erosion; ground water; herbicides; leaching; mathematical models; migration; models; organic compounds; pesticides; pollutants; pollution; runoff; soils; surface water; triazines; United States; water quality ER - TY - JOUR T1 - Forest Service photographs on laser video disc AN - 37181488; 1016888 JF - Agricultural history AU - Fish, Rick J AU - Fish, Rick J Y1 - 1991/04// PY - 1991 DA - Apr 1991 SP - 188 VL - 65 IS - 2 SN - 0002-1482, 0002-1482 KW - Photograph collections KW - Forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/37181488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Agricultural+history&rft.atitle=Forest+Service+photographs+on+laser+video+disc&rft.au=Fish%2C+Rick+J&rft.aulast=Fish&rft.aufirst=Rick&rft.date=1991-04-01&rft.volume=65&rft.issue=2&rft.spage=188&rft.isbn=&rft.btitle=&rft.title=Agricultural+history&rft.issn=00021482&rft_id=info:doi/ LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 9497; 5243 7197 8560 9511 4309 ER - TY - JOUR T1 - Dithyreanitrile: an unusual insect antifeedant from Dithyrea wislizenii. AN - 80490813; 2009944 AB - Dithyreanitrile, a novel sulfur-containing indole alkaloid, was isolated from the seeds of Dithyrea wislizenii (Cruciferae). Dithyreanitrile inhibits feeding of fall armyworm (Spodoptera frugiperda) and European corn borer (Ostrinia nubilalis) larvae. Dithyreanitrile, the first natural product with two sulfur atoms and a nitrile attached to the same carbon, was characterized by X-ray diffraction, spectroscopy, and chemical synthesis. JF - Experientia AU - Powell, R G AU - Mikolajczak, K L AU - Zilkowski, B W AU - Lu, H S AU - Mantus, E K AU - Clardy, J AD - USDA/ARS Northern Regional Research Center, Peoria, Illinois 61604. Y1 - 1991/03/15/ PY - 1991 DA - 1991 Mar 15 SP - 304 EP - 306 VL - 47 IS - 3 SN - 0014-4754, 0014-4754 KW - Alkaloids KW - 0 KW - dithyreanitrile KW - 128717-80-6 KW - Index Medicus KW - Animals KW - Seeds KW - X-Ray Diffraction KW - Magnetic Resonance Spectroscopy KW - Alkaloids -- toxicity KW - Alkaloids -- isolation & purification KW - Insects -- drug effects KW - Feeding Behavior -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80490813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experientia&rft.atitle=Dithyreanitrile%3A+an+unusual+insect+antifeedant+from+Dithyrea+wislizenii.&rft.au=Powell%2C+R+G%3BMikolajczak%2C+K+L%3BZilkowski%2C+B+W%3BLu%2C+H+S%3BMantus%2C+E+K%3BClardy%2C+J&rft.aulast=Powell&rft.aufirst=R&rft.date=1991-03-15&rft.volume=47&rft.issue=3&rft.spage=304&rft.isbn=&rft.btitle=&rft.title=Experientia&rft.issn=00144754&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-03 N1 - Date created - 1991-05-03 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A deficiency of the homeotic complex of the beetle Tribolium. AN - 72779450; 11536480 AB - In Drosophila, the establishment of regional commitments along most of the anterior/posterior axis of the developing embryo depends on two clusters of homeotic genes: the Antennapedia complex (ANT-C) and the bithorax complex (BX-C). The red flour beetle has a single complex (HOM-C) representing the homologues of the ANT-C and BX-C in juxtaposition. Beetles trans-heterozygous for two particular HOM-C mutations spontaneously generate a large deficiency, presumably by an exchange within the common region of two overlapping inversions. Genetic and molecular results indicate that this deficiency spans at least the interval between the Deformed and abdominal-A homologues. In deficiency homozygous embryos, all gnathal, thoracic and abdominal segments develop antennal appendages, suggesting that a gene(s) has been deleted that acts to distinguish trunk from head. There is no evidence that beetles have a homologue of the segmentation gene fushi tarazu of similar genomic location and function. On the basis of the genetic tractability, convenient genome size and organization of Tribolium, and its relatively long phylogenetic divergence from Drosophila (>300 million years), we have integrated developmental genetic and molecular analyses of the HOM-C. We isolated about 70 mutations in the complex representing at least six complementation groups. The homeotic phenotypes of adults and lethal embryos lead us to believe that these beetle genes are homologous with the Drosophila genes indicated in Fig. 1 (see text). JF - Nature AU - Stuart, J J AU - Brown, S J AU - Beeman, R W AU - Denell, R E AD - USDA, US Grain Marketing Research Laboratory, Manhattan, Kansas 66502, USA. Y1 - 1991/03/07/ PY - 1991 DA - 1991 Mar 07 SP - 72 EP - 74 VL - 350 IS - 6313 SN - 0028-0836, 0028-0836 KW - Space life sciences KW - NASA Discipline Number 93-10 KW - NASA Discipline Cell Biology KW - NASA Discipline Developmental Biology KW - NASA Program NSCORT KW - Non-NASA Center KW - Phenotype KW - Animals KW - Larva -- genetics KW - Genes, Lethal -- genetics KW - Drosophila -- genetics KW - Mutation KW - Larva -- growth & development KW - Tribolium -- embryology KW - Genes, Homeobox -- physiology KW - Tribolium -- growth & development KW - Mutagenesis -- genetics KW - Tribolium -- genetics KW - Genes, Homeobox -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72779450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=A+deficiency+of+the+homeotic+complex+of+the+beetle+Tribolium.&rft.au=Stuart%2C+J+J%3BBrown%2C+S+J%3BBeeman%2C+R+W%3BDenell%2C+R+E&rft.aulast=Stuart&rft.aufirst=J&rft.date=1991-03-07&rft.volume=350&rft.issue=6313&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1995-08-10 N1 - Date created - 1995-08-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determining organohalides in animal fats using gel permeation chromatographic cleanup: repeatability study. AN - 80624965; 2050618 AB - Evaluation of a previously published gel permeation chromatographic (GPC) procedure was undertaken to determine whether it can be used for additional organochlorine pesticides. After repeatability studies of many pesticides, the following compounds were approved for inclusion in the U.S. Department of Agriculture Domestic Residue Monitoring Program: coumaphos-S, stirophos, chlorpyrifos, ronnel, carbophenothion, chlorfenvinphos, phosalone, kepone, captan, linuron, and endosulfan I and II. Recoveries ranged from 54% for captan to 123% for ronnel. Ranges of CVs varied from 0-9.5% for carbophenothion to 7.1-47.7% for kepone. Although the minimum acceptable recovery of 50% was attained for all 12 pesticides, the anticipated CV of 20% was waived to include chlorpyrifos, endosulfan I and II, and kepone. For a multiresidue procedure involving approximately 40 compounds, these results were within the acceptable criteria. JF - Journal - Association of Official Analytical Chemists AU - Goodspeed, D P AU - Chestnut, L I AD - U.S. Department of Agriculture, Food Safety and Inspection Service, Science and Technology Western Laboratory, Alameda, CA 94501. PY - 1991 SP - 388 EP - 394 VL - 74 IS - 2 SN - 0004-5756, 0004-5756 KW - Fats KW - 0 KW - Hydrocarbons, Halogenated KW - Pesticide Residues KW - Index Medicus KW - Food Analysis -- methods KW - Animals KW - Reproducibility of Results KW - Chromatography, Gel KW - Calibration KW - Hydrocarbons, Halogenated -- analysis KW - Pesticide Residues -- analysis KW - Meat -- analysis KW - Fats -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80624965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Determining+organohalides+in+animal+fats+using+gel+permeation+chromatographic+cleanup%3A+repeatability+study.&rft.au=Goodspeed%2C+D+P%3BChestnut%2C+L+I&rft.aulast=Goodspeed&rft.aufirst=D&rft.date=1991-03-01&rft.volume=74&rft.issue=2&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-23 N1 - Date created - 1991-07-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxic effects of kojic acid in the diet of male broilers. AN - 80608438; 2047342 AB - The toxicological effects induced by the administration of kojic acid were characterized in young male broiler chickens (Hubbard x Peterson). The experimental design consisted of six dietary treatments of kojic acid (0, .5, 1, 2, 4, and 8 g/kg feed) and four replicates of 10 broilers per replicate. Kojic acid significantly (P less than .05) decreased growth rates at concentrations greater than 2 g basic acid/kg feed. Kojic acid in higher concentrations also significantly increased the relative weights of the proventriculus, gizzard, pancreas, and liver, and significantly decreased the relative weight of the bursa of Fabricius at necropsy (Day 21). Hematological changes included a significant increase in the number of red blood cells, a significant increase in packed-cell volume, and a significant decrease in mean corpuscular volume. Also occurring was a significant increase in the serum concentrations of total protein, albumin, cholesterol, and triglycerides. Hepatotoxicity of dietary kojic acid was evident through a significant increase in the activities of serum glutamic oxalacetic transaminase and creatine kinase and a significant decrease in the activity of alkaline phosphatase. A significant increase in serum uric acid concentration was indicative of nephrotoxicity, and a significant increase in serum glucose concentration was indicative of pancreatic toxicity. A significant decrease in colonic temperature was also observed. Because the toxic effects of kojic acid were only observed at concentrations greater than 2 g kojic acid/kg feed, this mycotoxin alone does not appear to pose a serious economic threat to the poultry industry. JF - Poultry science AU - Giroir, L E AU - Huff, W E AU - Kubena, L E AU - Harvey, R B AU - Elissalde, M H AU - Witzel, D A AU - Yersin, A G AU - Ivie, G W AD - USDA, Agricultural Research Service, Veterinary Toxicology and Entomology Research Laboratory, College Station, Texas 77840. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 499 EP - 503 VL - 70 IS - 3 SN - 0032-5791, 0032-5791 KW - Blood Proteins KW - 0 KW - Enzymes KW - Mycotoxins KW - Pyrones KW - kojic acid KW - 6K23F1TT52 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Enzymes -- blood KW - Animal Feed KW - Liver -- drug effects KW - Gizzard, Avian -- drug effects KW - Proventriculus -- drug effects KW - Pancreas -- drug effects KW - Bursa of Fabricius -- drug effects KW - Male KW - Blood Proteins -- drug effects KW - Organ Size -- drug effects KW - Chickens -- physiology KW - Pyrones -- toxicity KW - Chickens -- growth & development KW - Mycotoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80608438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Toxic+effects+of+kojic+acid+in+the+diet+of+male+broilers.&rft.au=Giroir%2C+L+E%3BHuff%2C+W+E%3BKubena%2C+L+E%3BHarvey%2C+R+B%3BElissalde%2C+M+H%3BWitzel%2C+D+A%3BYersin%2C+A+G%3BIvie%2C+G+W&rft.aulast=Giroir&rft.aufirst=L&rft.date=1991-03-01&rft.volume=70&rft.issue=3&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-15 N1 - Date created - 1991-07-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Development of a preliminary enzyme-linked immunosorbent assay for the herbicide trifluralin. AN - 80564611; 2032006 JF - Bulletin of environmental contamination and toxicology AU - Riggle, B AD - Central Great Plains Research Station, USDA-ARS, Akron, Colorado 80720. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 404 EP - 409 VL - 46 IS - 3 SN - 0007-4861, 0007-4861 KW - Herbicides KW - 0 KW - Indicators and Reagents KW - Pesticide Residues KW - Trifluralin KW - C8BX46QL7K KW - Index Medicus KW - Enzyme-Linked Immunosorbent Assay KW - Cross Reactions KW - Herbicides -- analysis KW - Pesticide Residues -- analysis KW - Trifluralin -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80564611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+environmental+contamination+and+toxicology&rft.atitle=Development+of+a+preliminary+enzyme-linked+immunosorbent+assay+for+the+herbicide+trifluralin.&rft.au=Riggle%2C+B&rft.aulast=Riggle&rft.aufirst=B&rft.date=1991-03-01&rft.volume=46&rft.issue=3&rft.spage=404&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+environmental+contamination+and+toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-21 N1 - Date created - 1991-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Food Safety and Inspection Service initiatives for tissue residue reduction in meat and poultry. AN - 80546056; 2026528 JF - Journal of the American Veterinary Medical Association AU - Norcross, M A AU - Brown, J L AD - Food Safety and Inspection Service, US Department of Agriculture, Washington, DC 20250. Y1 - 1991/03/01/ PY - 1991 DA - 1991 Mar 01 SP - 819 EP - 824 VL - 198 IS - 5 SN - 0003-1488, 0003-1488 KW - Anti-Bacterial Agents KW - 0 KW - Growth Substances KW - Hormones KW - Pesticide Residues KW - Sulfonamides KW - Pentachlorophenol KW - D9BSU0SE4T KW - Index Medicus KW - United States KW - Sulfonamides -- analysis KW - Animals KW - Poultry KW - Hormones -- analysis KW - Anti-Bacterial Agents -- analysis KW - Pesticide Residues -- analysis KW - Pentachlorophenol -- analysis KW - Growth Substances -- analysis KW - Meat -- standards KW - Food Contamination -- prevention & control KW - Animals, Domestic -- metabolism KW - Drug Residues -- analysis KW - Meat -- analysis KW - Food Inspection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80546056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Food+Safety+and+Inspection+Service+initiatives+for+tissue+residue+reduction+in+meat+and+poultry.&rft.au=Norcross%2C+M+A%3BBrown%2C+J+L&rft.aulast=Norcross&rft.aufirst=M&rft.date=1991-03-01&rft.volume=198&rft.issue=5&rft.spage=819&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-12 N1 - Date created - 1991-06-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Rapid preparation of pyrogen-free 2H2(18)O for human-nutrition studies. AN - 80466509; 2000811 AB - We describe a compact ultrafiltration system for the removal of pyrogens and bacteria from water labeled with the stable isotopes of deuterium and oxygen-18. The ultrafiltration system is constructed from readily available commercial components and can achieve complete removal of pyrogens and bacteria from 1L contaminated water within 30 min. By use of our procedure, loss of the isotopically labeled water by retention in the filtration system was minimal. The purified water is suitable for both oral and intravenous administration to healthy human subjects participating in nutrition studies. JF - The American journal of clinical nutrition AU - Wong, W W AU - Leggitt, J L AU - Clarke, L L AU - Klein, P D AD - USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 585 EP - 586 VL - 53 IS - 3 SN - 0002-9165, 0002-9165 KW - Oxygen Isotopes KW - 0 KW - Pyrogens KW - Deuterium KW - AR09D82C7G KW - Abridged Index Medicus KW - Index Medicus KW - Humans KW - Isotope Labeling KW - Ultrafiltration -- instrumentation KW - Sterilization -- methods KW - Water Microbiology KW - Ultrafiltration -- methods KW - Water Pollution, Chemical -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80466509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+American+journal+of+clinical+nutrition&rft.atitle=Rapid+preparation+of+pyrogen-free+2H2%2818%29O+for+human-nutrition+studies.&rft.au=Wong%2C+W+W%3BLeggitt%2C+J+L%3BClarke%2C+L+L%3BKlein%2C+P+D&rft.aulast=Wong&rft.aufirst=W&rft.date=1991-03-01&rft.volume=53&rft.issue=3&rft.spage=585&rft.isbn=&rft.btitle=&rft.title=The+American+journal+of+clinical+nutrition&rft.issn=00029165&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-04-10 N1 - Date created - 1991-04-10 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - A comparison of chloride, bromide, and sucrose dilution volumes in neonatal pigs. AN - 80459114; 1998011 AB - Use of 36Cl, 82Br, and [3H]sucrose to estimate extracellular water volume was evaluated in 14 piglets (7-14 days old). 36Cl and 82Br were distributed in approximately the same volume, but a period of 5-6 hr after injection was required to reach equilibrium in the neonatal pig. Dilution volumes calculated before equilibration (2-5 hr) for 36Cl (326 +/- 11 ml/kg) and 82Br (328 +/- 13 ml/kg) were different from equilibration (6-8 hr) phase volumes (356 +/- 13 ml/kg and 355 +/- 13 ml/kg, respectively; P less than 0.001). A 3-hr sample estimated the same volume distribution calculated by extrapolation of the 6- to 8-hr period because of the relationship between the two slopes of the plasma clearance curves. After the 82Br and 36Cl had achieved equilibration, each was distributed in a volume equivalent to total body chloride space (362 +/- 29 ml/kg) measured by neutron activation; no statistical differences were found (P = 0.6). The early equilibration phase measured a 10% smaller, faster exchangeable fraction of total body Cl. Sucrose dilution volume (332 +/- 19 ml/kg) required multiple plasma samples for extrapolation and measured a dilution volume 7% smaller (P less than 0.05) than total body chloride space. JF - Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) AU - Mørkeberg, J C AU - Sheng, H P AU - Huggins, R A AD - United States Department of Agriculture, Agricultural Research Service, Department of Pediatrics and Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas 77030. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 344 EP - 350 VL - 196 IS - 3 SN - 0037-9727, 0037-9727 KW - Chlorine KW - 4R7X1O2820 KW - Sucrose KW - 57-50-1 KW - Bromine KW - SBV4XY874G KW - Index Medicus KW - Swine KW - Animals KW - Plasma -- metabolism KW - Metabolic Clearance Rate KW - Urine -- chemistry KW - Extracellular Space -- metabolism KW - Bromine -- pharmacokinetics KW - Chlorine -- pharmacokinetics KW - Sucrose -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80459114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.atitle=A+comparison+of+chloride%2C+bromide%2C+and+sucrose+dilution+volumes+in+neonatal+pigs.&rft.au=M%C3%B8rkeberg%2C+J+C%3BSheng%2C+H+P%3BHuggins%2C+R+A&rft.aulast=M%C3%B8rkeberg&rft.aufirst=J&rft.date=1991-03-01&rft.volume=196&rft.issue=3&rft.spage=344&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Society+for+Experimental+Biology+and+Medicine.+Society+for+Experimental+Biology+and+Medicine+%28New+York%2C+N.Y.%29&rft.issn=00379727&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-04-02 N1 - Date created - 1991-04-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Defining and Measuring Poverty in the Nonmetropolitan United States Using the Survey of Income and Program Participation AN - 60065635; 91X7880 AB - Data from the Survey of Income & Program Participation (SIPP), developed by the US Census Bureau to obtain information for evaluating government income programs, demonstrate how poverty definitions affect the reported extent of poverty in both metropolitan & rural areas. SIPP results since 1983 (N ranging from 11,000 to 19,900) indicate that whatever definition of poverty is used, nonmetropolitan areas have higher poverty rates, confirming Current Population Survey data that rural poverty is a problem severe enough to warrant special attention. It is noted that rural poor are more likely to be white, elderly, disabled, & married in comparison to their urban counterparts. 5 Tables, 1 Figure, 34 References. Adapted from the source document. JF - Social Indicators Research AU - Hoppe, Robert A AD - Economic Research Service US Dept Agriculture, 14th St & Independence Ave SW Washington DC 20005 Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 123 EP - 151 VL - 24 IS - 2 SN - 0303-8300, 0303-8300 KW - US government income programs, poverty definition's impact, rural vs urban areas KW - census survey data KW - 1983 KW - Low Income Groups KW - Rural Urban Differences KW - Poverty KW - Government Policy KW - United States of America KW - Income Maintenance Programs KW - article KW - 0104: methodology and research technology; research methods KW - 2757: studies in poverty; studies in poverty UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/60065635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Social+Indicators+Research&rft.atitle=Defining+and+Measuring+Poverty+in+the+Nonmetropolitan+United+States+Using+the+Survey+of+Income+and+Program+Participation&rft.au=Hoppe%2C+Robert+A&rft.aulast=Hoppe&rft.aufirst=Robert&rft.date=1991-03-01&rft.volume=24&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Social+Indicators+Research&rft.issn=03038300&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-10-30 N1 - Last updated - 2016-09-28 N1 - CODEN - SINRDZ N1 - SubjectsTermNotLitGenreText - Income Maintenance Programs; United States of America; Government Policy; Poverty; Low Income Groups; Rural Urban Differences ER - TY - JOUR T1 - The pattern of cadmium in the environment of five Minnesota cities AN - 51049326; 1997-026624 AB - Soil samples were collected from Minneapolis, St Paul, Duluth, St Cloud and Rochester. The results show fundamental differences in soil Cd among cities. Cd levels for the combined data for all cities and communities in Minneapolis seem to be directly related to traffic flow, though Cd levels around house sides and in gardens do not follow patterns of traffic flow. St Paul has higher Cd values to the E of the city than to the W, probably related to the location of the sewage sludge incinerator. The study provides essential urban background information about both the basic environmental patterns of Cd, as well as processes which seem to operate to cause those patterns. JF - Environmental Geochemistry and Health AU - Mielke, H W AU - Adams, J L AU - Chaney, R L AU - Mielke, P W, Jr AU - Ravikumar, V C Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 29 EP - 34 PB - Science and Technology Letters, Kew VL - 13 IS - 1 SN - 0269-4042, 0269-4042 KW - United States KW - soils KW - Minnesota KW - pollutants KW - Duluth Minnesota KW - Saint Paul Minnesota KW - background level KW - Rochester Minnesota KW - pollution KW - Saint Louis County Minnesota KW - incinerators KW - Minneapolis Minnesota KW - Ramsey County Minnesota KW - metals KW - industrial waste KW - cadmium KW - surveys KW - Saint Cloud Minnesota KW - waste disposal KW - Hennepin County Minnesota KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51049326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geochemistry+and+Health&rft.atitle=The+pattern+of+cadmium+in+the+environment+of+five+Minnesota+cities&rft.au=Mielke%2C+H+W%3BAdams%2C+J+L%3BChaney%2C+R+L%3BMielke%2C+P+W%2C+Jr%3BRavikumar%2C+V+C&rft.aulast=Mielke&rft.aufirst=H&rft.date=1991-03-01&rft.volume=13&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Environmental+Geochemistry+and+Health&rft.issn=02694042&rft_id=info:doi/ L2 - http://www.springerlink.com/content/100162/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - background level; cadmium; Duluth Minnesota; Hennepin County Minnesota; incinerators; industrial waste; metals; Minneapolis Minnesota; Minnesota; pollutants; pollution; Ramsey County Minnesota; Rochester Minnesota; Saint Cloud Minnesota; Saint Louis County Minnesota; Saint Paul Minnesota; soils; surveys; United States; waste disposal ER - TY - JOUR T1 - Spatial sensitivity of time-domain reflectometry; discussion and reply AN - 50591574; 1991-024738 JF - Soil Science AU - Knight, J H AU - Baker, John M AU - Lascano, R J Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 254 EP - 257 PB - Williams & Wilkins Company, Baltimore, MD VL - 151 IS - 3 SN - 0038-075X, 0038-075X KW - soils KW - analysis KW - instruments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50591574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science&rft.atitle=Spatial+sensitivity+of+time-domain+reflectometry%3B+discussion+and+reply&rft.au=Knight%2C+J+H%3BBaker%2C+John+M%3BLascano%2C+R+J&rft.aulast=Knight&rft.aufirst=J&rft.date=1991-03-01&rft.volume=151&rft.issue=3&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Soil+Science&rft.issn=0038075X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 6 N1 - PubXState - MD N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Baker, J. M., and Lascano, R. J., Soil Sci., Vol. 147, p. 378-384, 1989 N1 - Last updated - 2012-06-07 N1 - CODEN - SOSCAK N1 - SubjectsTermNotLitGenreText - analysis; instruments; soils ER - TY - JOUR T1 - Soil forming processes in soils with cryic and frigid soil temperature regimes in Idaho AN - 50458227; 1992-025722 JF - Proceedings - International Soil Correlation Meeting (ISCOM) AU - Fosberg, Maynard A AU - Falen, A L AU - Blank, R R AU - Hipple, K W A2 - Kimble, J. M. Y1 - 1991/03// PY - 1991 DA - March 1991 SP - 43 EP - 53 PB - Soil Conservation Service, USDA, [Lincoln, NE] VL - 6 KW - United States KW - soils KW - morphology KW - Idaho KW - pedogenesis KW - parent materials KW - properties KW - climate KW - Aridisols KW - temperature KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50458227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.atitle=Soil+forming+processes+in+soils+with+cryic+and+frigid+soil+temperature+regimes+in+Idaho&rft.au=Fosberg%2C+Maynard+A%3BFalen%2C+A+L%3BBlank%2C+R+R%3BHipple%2C+K+W&rft.aulast=Fosberg&rft.aufirst=Maynard&rft.date=1991-03-01&rft.volume=6&rft.issue=&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+International+Soil+Correlation+Meeting+%28ISCOM%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international soil correlation meeting (VI ISCOM); Characterization, classification, and utilization of cold Aridisols and Vertisols; Montana, Idaho, and Wyoming, United States, and Saskatchewan, Canada N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 33 N1 - PubXState - NE] N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #03237 N1 - SubjectsTermNotLitGenreText - Aridisols; climate; Idaho; morphology; parent materials; pedogenesis; properties; soils; temperature; United States ER - TY - JOUR T1 - Wall and Corner Fire Tests on selected Wood Products AN - 21326354; 11633143 AB - As part of a fire growth program to develop and validate a com partment fire model, several bench-scale and full-scale tests were conducted. This paper reports the full-scale wall and corner test results of step 2 of this study. A room fire test following the ASTM proposed standard specifications was used for these full-scale tests. In step 1, we investigated the combination of factors for evaluating wood products in wall and corner fire tests. They were the position of the ignition source, power output from the source, and combination of lining materials. We concluded from the sensitivity study (step 1) that for wall and corner fire tests, a burner output program consisting of 40 kW expo sure for 5 min followed by 160 kW exposure for 5 min was the most informative. In this paper, step 2 of the research program, results from wall and corner tests using six wood materials having different flame spread indices (according to ASTM E 84) are given. The two-step burner setting was confirmed to be better than a constant setting for evaluating wood materials. The relative perfor mance of these materials was in line with their ASTM E 84 flame spread prop erties. Smoke release rates obtained by white-light and laser systems showed excellent agreement. Only rate of heat and smoke release, selected tempera tures, and heat fluxes are reported. The complete reduced data set will be pub lished later. JF - Journal of Fire Sciences AU - Tran, Hao C AU - Janssens, Marc L AD - USDA Forest Service Forest Products Laboratory One Gifford Pinchot Drive Madison, WI 53705-2398 Y1 - 1991/03// PY - 1991 DA - Mar 1991 SP - 106 EP - 124 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 9 IS - 2 SN - 0734-9041, 0734-9041 KW - Health & Safety Science Abstracts KW - Fires KW - Sensitivity KW - Wood KW - Smoke KW - Lasers KW - Research programs KW - H 7000:Fire Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21326354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fire+Sciences&rft.atitle=Wall+and+Corner+Fire+Tests+on+selected+Wood+Products&rft.au=Tran%2C+Hao+C%3BJanssens%2C+Marc+L&rft.aulast=Tran&rft.aufirst=Hao&rft.date=1991-03-01&rft.volume=9&rft.issue=2&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fire+Sciences&rft.issn=07349041&rft_id=info:doi/10.1177%2F073490419100900202 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-01-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Smoke; Sensitivity; Fires; Wood; Lasers; Research programs DO - http://dx.doi.org/10.1177/073490419100900202 ER - TY - JOUR T1 - Regional Characteristics of Land Use in Northeast and Southern Blue Ridge Province: Associations with Acid Rain Effects on Surface-Water Chemistry AN - 19131884; 9112120 AB - The Direct/Delayed Response Project (DDRP) is one of several studies being conducted by the United States Environmental Protection Agency to assess risk to surface waters from acidic deposition in the eastern United States. In one phase of DDRP, land use, wetland, and forest cover data were collected for statistical samples of 145 Northeast lake and 35 Southern Blue Ridge Province stream watersheds in the United States. Land use and other data were extrapolated from individual to target watershed populations. Project statistical design allows summarization of results for various subsets of the target population. Forest cover was the primary land use in both the Northeast lake and Southern Blue Ridge Province stream regions. In the Northeast, developed (agriculture and urban) land was positively associated with surface-water chemistry values for acid neutralizing capacity, Ca plus Mg, pH, and sulfate in the Pocono/Catskill subregion. Extensive wetlands and beaver activity occur in parts of the Northeast region, whereas topography limits wetland and riparian development in the Southern Blue Ridge Province. Northeast soils have low sulfate adsorption capacity, most watersheds are near sulfur steady state, and lake sulfate concentrations are controlled principally by levels of sulfur deposition. Net annual sulfur retention in Northeast watersheds is positively correlated with the occurrence of wetlands and beaver impoundments. In contrast , most Southern Blue Ridge Province soils have high sulfate adsorption capacities, resulting in high net watershed sulfur retention. At the present time, stream sulfate concentrations and percent sulfur retention are controlled principally by soil chemical properties related to adsorption rather than atmospheric deposition and land use. (Author's abstract) JF - Environmental Management EMNGDC, Vol. 15, No. 2, p 269-279, March/April 1991. 1 fig, 9 tab, 43 ref. AU - Liegel, L AU - Cassell, D AU - Stevens, D AU - Shaffer, P AU - Church, R AD - USDA Forest Service, US EPA Environmental Research Laboratory, 200 SW 35 Street, Corvallis, Oregon 97333 Y1 - 1991/03// PY - 1991 DA - Mar 1991 KW - Water Resources Abstracts KW - *Acid rain KW - *Acid rain effects KW - *Environmental chemistry KW - *Land use KW - *Path of pollutants KW - *Regional analysis KW - Acid lakes KW - Acid neutralizing capacity KW - Acid streams KW - Calcium KW - Lake acidification KW - Magnesium KW - Soil chemistry KW - Sulfates KW - Sulfur KW - Vegetation effects KW - Wetlands KW - SW 3020:Sources and fate of pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19131884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Regional+Characteristics+of+Land+Use+in+Northeast+and+Southern+Blue+Ridge+Province%3A+Associations+with+Acid+Rain+Effects+on+Surface-Water+Chemistry&rft.au=Liegel%2C+L%3BCassell%2C+D%3BStevens%2C+D%3BShaffer%2C+P%3BChurch%2C+R&rft.aulast=Liegel&rft.aufirst=L&rft.date=1991-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Effect of temperature history on the growth of Listeria monocytogenes Scott A at refrigeration temperatures. AN - 80615077; 1904762 AB - The effect of pre-inoculation temperature on the subsequent growth of Listeria monocytogenes Scott A at 5 degrees C was examined in microbiological medium, UHT milk, canned dog food, and raw ground beef (untreated and irradiation-sterilized). In microbiological medium, the duration of the lag phase was decreased when aerobic and anaerobic cultures were initially grown at less than or equal to 28 and less than or equal to 13 degrees C, respectively. Subsequent exponential growth rates and maximum population densities of the 5 degrees C cultures were not affected by temperature history. Differences in lag phase durations were also observed when L. monocytogenes initially cultured at 19 and 37 degrees C were grown at 5 degrees C in UHT milk and some of the canned dog food varieties. Growth of L. monocytogenes was not observed in either untreated or irradiation-sterilized raw ground beef. While temperature history can affect the growth kinetics of L. monocytogenes at 5 degrees C, it did not account for the lack of growth in raw meat, suggesting that there is an inhibitory condition or component in ground beef that is lost upon cooking. JF - International journal of food microbiology AU - Buchanan, R L AU - Klawitter, L A AD - Microbial Food Safety Research Unit, U.S. Department of Agriculture, ARS Eastern Regional Research Center, Philadelphia, PA 19118. Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 235 EP - 245 VL - 12 IS - 2-3 SN - 0168-1605, 0168-1605 KW - Culture Media KW - 0 KW - Index Medicus KW - Refrigeration KW - Animals KW - Temperature KW - Cold Temperature KW - Meat KW - Kinetics KW - Meat Products KW - Milk -- microbiology KW - Colony Count, Microbial KW - Food Irradiation KW - Aerobiosis KW - Anaerobiosis KW - Food Microbiology KW - Listeria monocytogenes -- growth & development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80615077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+journal+of+food+microbiology&rft.atitle=Effect+of+temperature+history+on+the+growth+of+Listeria+monocytogenes+Scott+A+at+refrigeration+temperatures.&rft.au=Buchanan%2C+R+L%3BKlawitter%2C+L+A&rft.aulast=Buchanan&rft.aufirst=R&rft.date=1991-02-01&rft.volume=12&rft.issue=2-3&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=International+journal+of+food+microbiology&rft.issn=01681605&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-22 N1 - Date created - 1991-07-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effect of ionizing radiation dose, temperature, and atmosphere on the survival of Salmonella typhimurium in sterile, mechanically deboned chicken meat. AN - 80548470; 2027844 AB - The response to gamma radiation (0 to 3.60 kGy; 100 krad = 1 kGy) of Salmonella typhimurium was tested in otherwise sterile, mechanically deboned chicken meat (MDCM) in the absence of competing microflora. Response was determined at temperatures of -20 to +20 C and when the MDCM was packaged in vacuum or in the presence of air. A central composite response-surface design was used to test the response of the pathogen to the treatments in a single experiment. Predictive equations were developed from the analyses of variances of the resulting data. The accuracy of each predictive equation was tested by further studies of the effects of gamma radiation on S. typhimurium in the presence or absence of air at -20, 0, and +20 C. All data were then analyzed to refine the predictive equations further. Both the original and the refined equations adequately predicted the response of S. typhimurium in MDCM to gamma radiation doses up to 3.60 kGy in the presence of air or in vacuo. Gamma irradiation was significantly more lethal for S. typhimurium in the presence of air and at higher temperatures. The final equations predict a reduction in the number of surviving Salmonella in MDCM irradiated to 1.50 kGy at -20 C of 2.53 logs in air or 2.12 logs if irradiated in vacuum. If the contaminated MDCM were to receive a dose of 3.0 kGy at -20 C in air, the number of Salmonella would be decreased by 4.78 logs, and if irradiated in vacuum, by 4.29 logs.(ABSTRACT TRUNCATED AT 250 WORDS) JF - Poultry science AU - Thayer, D W AU - Boyd, G AD - Food Safety Research Unit, USDA, Philadelphia, Pennsylvania 19118. Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 381 EP - 388 VL - 70 IS - 2 SN - 0032-5791, 0032-5791 KW - Index Medicus KW - Regression Analysis KW - Animals KW - Chickens KW - Analysis of Variance KW - Gamma Rays KW - Temperature KW - Air KW - Meat -- standards KW - Food Microbiology KW - Food Irradiation KW - Salmonella typhimurium -- growth & development KW - Salmonella typhimurium -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80548470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Poultry+science&rft.atitle=Effect+of+ionizing+radiation+dose%2C+temperature%2C+and+atmosphere+on+the+survival+of+Salmonella+typhimurium+in+sterile%2C+mechanically+deboned+chicken+meat.&rft.au=Thayer%2C+D+W%3BBoyd%2C+G&rft.aulast=Thayer&rft.aufirst=D&rft.date=1991-02-01&rft.volume=70&rft.issue=2&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Poultry+science&rft.issn=00325791&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-13 N1 - Date created - 1991-06-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Surface sealing in coastal plains loamy sands AN - 50582644; 1991-028631 JF - Soil Science Society of America Journal AU - Radcliffe, D E AU - West, L T AU - Hubbard, R K AU - Asmussen, Loris E Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 223 EP - 227 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 1 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - Paleudults KW - experimental studies KW - sealing KW - Ultisols KW - coastal plains KW - infiltration KW - soil surveys KW - surveys KW - Georgia KW - Udults KW - Kandiudults KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50582644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Surface+sealing+in+coastal+plains+loamy+sands&rft.au=Radcliffe%2C+D+E%3BWest%2C+L+T%3BHubbard%2C+R+K%3BAsmussen%2C+Loris+E&rft.aulast=Radcliffe&rft.aufirst=D&rft.date=1991-02-01&rft.volume=55&rft.issue=1&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - coastal plains; experimental studies; Georgia; infiltration; Kandiudults; Paleudults; sealing; soil surveys; soils; surveys; Udults; Ultisols; United States ER - TY - JOUR T1 - Suspension nebulization analysis of clays by inductively coupled plasma-atomic emission spectroscopy AN - 50581419; 1991-028633 JF - Soil Science Society of America Journal AU - Laird, D A AU - Dowdy, R H AU - Munter, R C Y1 - 1991/02// PY - 1991 DA - February 1991 SP - 274 EP - 278 PB - Soil Science Society of America, Madison, WI VL - 55 IS - 1 SN - 0361-5995, 0361-5995 KW - silicates KW - methods KW - experimental studies KW - inductively coupled plasma methods KW - X-ray diffraction data KW - clay mineralogy KW - suspension KW - kaolinite KW - illite KW - clay minerals KW - sheet silicates KW - applications KW - spectroscopy KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50581419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Suspension+nebulization+analysis+of+clays+by+inductively+coupled+plasma-atomic+emission+spectroscopy&rft.au=Laird%2C+D+A%3BDowdy%2C+R+H%3BMunter%2C+R+C&rft.aulast=Laird&rft.aufirst=D&rft.date=1991-02-01&rft.volume=55&rft.issue=1&rft.spage=274&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1991-01-01 N1 - Number of references - 12 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - applications; clay mineralogy; clay minerals; experimental studies; illite; inductively coupled plasma methods; kaolinite; methods; sheet silicates; silicates; spectroscopy; suspension; X-ray diffraction data ER - TY - JOUR T1 - National Estimates of the Recreational Value of Streamflow AN - 19121642; 9108942 AB - A practical method of valuing the recreational fishing benefits generated by a unit of water as it moves downstream is presented. A cross-sectional analysis was employed to estimate the change in individuals' fishing behavior due to a change in availability of fishery resources. A proxy for the availability of stream fishery resources is derived from the link between changes in streamflow consumption to changes in the quality of fishing downstream. The results show that marginal increases in streamflow can generate recreational benefits that exceed the marginal value of water in agriculture in some regions of the country. The estimated change in days fished due to an acre-foot change in streamflow varies across the United States, with most falling between 0.1 and 1 day ac ft. Although recreational fishing values for marginal streamflow changes were found to be less than $10.00 per acre-foot in most aggregated subareas, marginal values were found to exceed estimates of water's marginal values to irrigators in 51 of the 67 river basins that have a significant level of irrigation. (White-Reimer-PTT) JF - Water Resources Research WRERAQ, Vol. 27, No. 2, p 167-175, February 1991. 1 fig, 2 tab, 34 ref. AU - Hansen, L T AU - Hallam, A AD - Economic Research Service, USDA, Washington, D.C Y1 - 1991/02// PY - 1991 DA - Feb 1991 KW - Water Resources Abstracts KW - Economic aspects KW - Recreation demand KW - Sport fishing KW - Streamflow KW - Cost analysis KW - Irrigation KW - Stream fisheries KW - SW 4030:Cost allocation, cost sharing, pricing KW - SW 4040:Water demand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=National+Estimates+of+the+Recreational+Value+of+Streamflow&rft.au=Hansen%2C+L+T%3BHallam%2C+A&rft.aulast=Hansen&rft.aufirst=L&rft.date=1991-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - The Bureau of Reclamation's New Mandate for Irrigation Water Conservation: Purposes and Policy Alternatives AN - 19121586; 9108940 AB - Although the Bureau of Reclamation adopted a new mission as a water management agency, social purposes of the mission and methods of accomplishing the purposes remain undefined. A broad consensus agrees that a central feature of the agency's management program should be irrigation water conservation. Three purposes of irrigation water conservation were determined: achieving economic efficiency of water allocation; improving environmental quality of western river systems; and satisfying outstanding Native American water claims. Five policy instruments were identified as alternative methods of inducing conservation: quantity-based regulation; price-based regulation; transferable water use permits; conservation subsidies; and decentralization of ownership of Reclamation facilities. Present indications are that (1) price-based regulation may not produce water conservation, and (2) conservation policy instruments should be chosen with reference to their ability to achieve the purposes of federal water conservation policy. However, the policy framework developed still falls short of providing a full vision of the Bureau as a public agency with a true stewardship mission. (Author's abstract) JF - Water Resources Research WRERAQ, Vol. 27, No. 2, p 145-155, February 1991. 3 tab, 50 ref. AU - Moore, M R AD - Resources and Technology Division, Economic Research Service, U.S. Dept. of Agriculture, Washington, D.C Y1 - 1991/02// PY - 1991 DA - Feb 1991 KW - Water Resources Abstracts KW - Administrative agencies KW - Bureau of Reclamation KW - Irrigation KW - Water conservation KW - Water management KW - Economic aspects KW - Irrigation programs KW - Management planning KW - Policy making KW - SW 4020:Evaluation process KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=The+Bureau+of+Reclamation%27s+New+Mandate+for+Irrigation+Water+Conservation%3A+Purposes+and+Policy+Alternatives&rft.au=Moore%2C+M+R&rft.aulast=Moore&rft.aufirst=M&rft.date=1991-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - The threshold friction velocities and soil flux rates of selected soils in south-west New South Wales, Australia AN - 911675278; 2012-003671 JF - Acta Mechanica AU - Leys, J F A2 - Barndorff-Nielsen, O. E. A2 - Willetts, B. B. A2 - Christiansen, C. A2 - Hunt, J. C. R. A2 - Hutter, K. A2 - Moller, J. T. A2 - Rasmussen, K. R. A2 - Sorensen, M. A2 - Ziegler, F. Y1 - 1991 PY - 1991 DA - 1991 SP - 103 EP - 112 PB - Springer-Verlag, Vienna - New York VL - Suppl. 2 SN - 0001-5970, 0001-5970 KW - soils KW - experimental studies KW - Australasia KW - sediment transport KW - erosion KW - wind erosion KW - New South Wales Australia KW - friction KW - mathematical models KW - transport KW - velocity KW - Australia KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Mechanica&rft.atitle=The+threshold+friction+velocities+and+soil+flux+rates+of+selected+soils+in+south-west+New+South+Wales%2C+Australia&rft.au=Leys%2C+J+F&rft.aulast=Leys&rft.aufirst=J&rft.date=1991-01-01&rft.volume=Suppl.+2&rft.issue=&rft.spage=103&rft.isbn=3211822747&rft.btitle=&rft.title=Acta+Mechanica&rft.issn=00015970&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Australasia; Australia; erosion; experimental studies; friction; mathematical models; New South Wales Australia; sediment transport; soils; transport; velocity; wind erosion ER - TY - JOUR T1 - Studying metapopulation effects in predator-prey systems AN - 888105295; 15449980 AB - It has been suggested that many predator-prey systems persist, despite unstable local interactions, due to metapopulation processes: movement of individuals among largely independent local populations. I review 13 possible examples of this phenomenon all I could find in the literature-and find that each either lacks convincing data or is not a true metapopulation. Most of the examples rely on evidence of local extinction and recolonization, only a few using direct experimental methods; I discuss the advantages and disadvantages of these methods, as well as alternatives. I also consider the ways these systems deviate from having pure metapopulation structures, and conclude that most large-scale spatial population structures will not fit cleanly into a metapopulation vs. within-population dichotomy, but rather combine features of both. This will necessitate use of powerful and focused methodology (in particular, experimentation) to directly describe movement rates and patterns, rather than use of crude observational data (e.g. extinctions) to make inferences about movement. JF - Biological Journal of the Linnean Society AU - Taylor, Andrew D AD - U.S.D.A. Forest Service, Southern Forest Experiment Station, 2500 Shreveport Highway, Pineville, LA 71360, U.S.A. Y1 - 1991/01// PY - 1991 DA - Jan 1991 SP - 305 EP - 323 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 42 IS - 1-2 SN - 0024-4066, 0024-4066 KW - Animal Behavior Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - population structure KW - Data processing KW - Extinction KW - metapopulations KW - Reviews KW - Recolonization KW - extinction KW - Population structure KW - recolonization KW - Metapopulations KW - Y 25150:General/Miscellaneous KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888105295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biological+Journal+of+the+Linnean+Society&rft.atitle=Studying+metapopulation+effects+in+predator-prey+systems&rft.au=Taylor%2C+Andrew+D&rft.aulast=Taylor&rft.aufirst=Andrew&rft.date=1991-01-01&rft.volume=42&rft.issue=1-2&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Biological+Journal+of+the+Linnean+Society&rft.issn=00244066&rft_id=info:doi/10.1111%2Fj.1095-8312.1991.tb00565.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2013-12-16 N1 - SubjectsTermNotLitGenreText - Data processing; Extinction; Reviews; Recolonization; Population structure; Metapopulations; population structure; metapopulations; extinction; recolonization DO - http://dx.doi.org/10.1111/j.1095-8312.1991.tb00565.x ER - TY - JOUR T1 - Limonoid antifeedants from seed of Sandoricum koetjape. AN - 80604718; 2045819 AB - An extract of the seed of Sandoricum koetjape has yielded two new limonoids, sandoricin [1] and 6-hydroxysandoricin [2]. Both compounds are effective antifeedants when incorporated into artificial diets and fed to fall armyworm (Spodoptera frugiperda) or European corn borer (Ostrina nubilalis) larvae. Reduced growth rates and increased times to pupation were evident at lower dose levels while significant mortality was noted at higher dose levels. Structures of both compounds were determined by 1H nmr, 13C nmr, and ms and confirmed by X-ray crystallography. JF - Journal of natural products AU - Powell, R G AU - Mikolajczak, K L AU - Zilkowski, B W AU - Mantus, E K AU - Cherry, D AU - Clardy, J AD - USDA, Agricultural Research Service, Northern Regional Research Center, Peoria, Illinois 61604. PY - 1991 SP - 241 EP - 246 VL - 54 IS - 1 SN - 0163-3864, 0163-3864 KW - Insecticides KW - 0 KW - Limonins KW - Triterpenes KW - sandoricin KW - 133585-55-4 KW - 6-hydroxysandoricin KW - 133585-56-5 KW - Index Medicus KW - Seeds -- analysis KW - Molecular Structure KW - Animals KW - Larva KW - Chi-Square Distribution KW - Feeding Behavior -- drug effects KW - Plants -- analysis KW - Triterpenes -- chemistry KW - Moths -- physiology KW - Insecticides -- chemistry KW - Insecticides -- isolation & purification KW - Triterpenes -- pharmacology KW - Triterpenes -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80604718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+natural+products&rft.atitle=Limonoid+antifeedants+from+seed+of+Sandoricum+koetjape.&rft.au=Powell%2C+R+G%3BMikolajczak%2C+K+L%3BZilkowski%2C+B+W%3BMantus%2C+E+K%3BCherry%2C+D%3BClardy%2C+J&rft.aulast=Powell&rft.aufirst=R&rft.date=1991-01-01&rft.volume=54&rft.issue=1&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Journal+of+natural+products&rft.issn=01633864&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-07-17 N1 - Date created - 1991-07-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Dynamics of permethrin resistance in a colony of horn flies (Diptera: Muscidae). AN - 80568698; 2033620 AB - A colony of horn fly, Haematobia irritans (L.), was established from field-collected, resistant flies. Changes in resistance levels were monitored under a regimen with and without insecticide pressure. The colony remained closed with no introduction of susceptible flies. In the absence of permethrin pressure, resistance levels dropped to 2.5 times from an initial level of 17 times at LC50 and remained at that level from generation 12 through 33. In the presence of various insecticide pressure regimens, resistance increased to 500 times at LC90 by generation 86. In a separate study, susceptible colony flies were subjected to permethrin pressure, with first resistance evident in generation 16 and increasing to greater than 100 times at LC90 in generation 88. JF - Journal of medical entomology AU - Kunz, S E AD - Knipling-Bushland U.S. Livestock Insects Laboratory, USDA-ARS, Kerrville, Texas 78029. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 63 EP - 66 VL - 28 IS - 1 SN - 0022-2585, 0022-2585 KW - Insecticides KW - 0 KW - Pyrethrins KW - Permethrin KW - 509F88P9SZ KW - Index Medicus KW - Animals KW - Insecticide Resistance KW - Muscidae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80568698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+medical+entomology&rft.atitle=Dynamics+of+permethrin+resistance+in+a+colony+of+horn+flies+%28Diptera%3A+Muscidae%29.&rft.au=Kunz%2C+S+E&rft.aulast=Kunz&rft.aufirst=S&rft.date=1991-01-01&rft.volume=28&rft.issue=1&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Journal+of+medical+entomology&rft.issn=00222585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-24 N1 - Date created - 1991-06-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Multiresidue assay for benzimidazole anthelmintics by liquid chromatography and confirmation by gas chromatography/selected-ion monitoring electron impact mass spectrometry. AN - 80550650; 2026577 AB - A multiresidue method utilizing all-disposable labware has been developed for 8 benzimidazole anthelmintics from ovine, bovine, and swine muscle and liver tissues. After an initial extraction with ethyl acetate and subsequent evaporation, a 3-component extraction using hexane, ethanol, and 0.2N HCl was used for final cleanup. Clean extracts were produced for separation and determination by reverse-phase liquid chromatography at 298 nm, using methanol and aqueous buffer as mobile phase. A synthesized internal standard, 2-(n-butylmercapto)benzimidazole, was used for quantitation of all drugs. Results are included along with statistical information verifying the performance of the method. Spiked control tissues and incurred drug tissues were used for an intralaboratory study with a concentration range of 50-1470 ppb. A series of standard curves at 0, 50, 100, and 200 ppb were analyzed. Overall recovery at the 100 ppb level averaged 92% (CV 8%) in liver tissues, across all 3 species and 88% (CV 5%) in muscle tissues across all 3 species. Results were confirmed by gas chromatography/mass spectrometry with acid hydrolysis of the remaining extract in 2N HCl followed by re-extraction of the amine and derivatization to the tert-butyldimethylsilyl derivative. The anthelmintics were identified by gas chromatography/selected ion monitoring electron-impact mass spectrometry. Ion ratio measurements were taken and compared to standard material. CVs averaged 10% or less for all drugs tested. JF - Journal - Association of Official Analytical Chemists AU - Wilson, R T AU - Groneck, J M AU - Henry, A C AU - Rowe, L D AD - U.S. Department of Agriculture, Food Safety and Inspection Service, Midwestern Laboratory, St. Louis, MO 63115. PY - 1991 SP - 56 EP - 67 VL - 74 IS - 1 SN - 0004-5756, 0004-5756 KW - Anthelmintics KW - 0 KW - Benzimidazoles KW - Indicators and Reagents KW - Index Medicus KW - Swine KW - Animals KW - Muscles -- chemistry KW - Cattle KW - Sheep KW - Gas Chromatography-Mass Spectrometry KW - Chromatography, Liquid KW - Liver -- chemistry KW - Drug Residues -- analysis KW - Benzimidazoles -- analysis KW - Anthelmintics -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80550650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+-+Association+of+Official+Analytical+Chemists&rft.atitle=Multiresidue+assay+for+benzimidazole+anthelmintics+by+liquid+chromatography+and+confirmation+by+gas+chromatography%2Fselected-ion+monitoring+electron+impact+mass+spectrometry.&rft.au=Wilson%2C+R+T%3BGroneck%2C+J+M%3BHenry%2C+A+C%3BRowe%2C+L+D&rft.aulast=Wilson&rft.aufirst=R&rft.date=1991-01-01&rft.volume=74&rft.issue=1&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Journal+-+Association+of+Official+Analytical+Chemists&rft.issn=00045756&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-12 N1 - Date created - 1991-06-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Relative effects of feeding saturated fats and cholesterol on fluidity of rabbit lipoproteins. AN - 80540234; 1673898 AB - 1. The effects of saturated fat and cholesterol on lipoprotein fluidity were tested in New Zealand white rabbits fed diets containing corn oil (CO) or cocoa butter (CB) with and without added 0.2% cholesterol. 2. Saturated fats had little effect on fluidity in any lipoprotein fraction. 3. Cholesterol feeding dramatically reduced fluidity in VLDL and LDL, but minimal change was noted in HDL. 4. Cholesterol-fed rabbits were hypercholesteroloemic throughout the 10-month study. 5. The rabbits became adapted to cholesterol feeding as VLDL became more fluid with time. JF - Comparative biochemistry and physiology. A, Comparative physiology AU - Berlin, E AU - Shapiro, S G AU - Young, C AD - Lipid Nutrition Laboratory, Beltsville Human Nutrition Research Center, United States Department of Agriculture, MD 20705. Y1 - 1991 PY - 1991 DA - 1991 SP - 343 EP - 346 VL - 98 IS - 2 SN - 0300-9629, 0300-9629 KW - Cholesterol, Dietary KW - 0 KW - Dietary Fats KW - Lipoproteins KW - cocoa butter KW - 512OYT1CRR KW - Corn Oil KW - 8001-30-7 KW - Index Medicus KW - Animals KW - Corn Oil -- pharmacology KW - Rabbits KW - Hypercholesterolemia -- chemically induced KW - Male KW - Lipoproteins -- chemistry KW - Cholesterol, Dietary -- pharmacology KW - Dietary Fats -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80540234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comparative+biochemistry+and+physiology.+A%2C+Comparative+physiology&rft.atitle=Relative+effects+of+feeding+saturated+fats+and+cholesterol+on+fluidity+of+rabbit+lipoproteins.&rft.au=Berlin%2C+E%3BShapiro%2C+S+G%3BYoung%2C+C&rft.aulast=Berlin&rft.aufirst=E&rft.date=1991-01-01&rft.volume=98&rft.issue=2&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Comparative+biochemistry+and+physiology.+A%2C+Comparative+physiology&rft.issn=03009629&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-06-07 N1 - Date created - 1991-06-07 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Diminution of aflatoxin toxicity to growing lambs by dietary supplementation with hydrated sodium calcium aluminosilicate. AN - 80534407; 1850585 AB - Hydrated sodium calcium aluminosilicate (HSCAS), an anticaking agent for mixed feed, was added to the diets of growing wethers (mean body weight, 34.0 kg) and was evaluated for its ability to diminish the clinical signs of aflatoxicosis. The experimental design consisted of 4 treatment groups of 5 wethers each, consuming concentrations of 0 g of HSCAS and 0 g of aflatoxin (AF)/kg of feed (control; group 1); 20 g of HSCAS/kg (2.0%; group 2), 2.6 mg of AF/kg (group 3); or 20 g of HSCAS (2.0%) plus 2.6 mg of AF/kg (group 4). Wethers were maintained in indoor pens, with feed and water available ad libitum for 42 days. Lambs were observed twice daily and weighed weekly, and blood samples were obtained every 2 weeks for hematologic and serum biochemical analyses and for measurement of mitogen-induced lymphocyte-stimulation index. At the termination of the study, wethers were euthanatized and necropsied. Body weight gain was diminished significantly (P less than 0.05) by consumption of 2.6 mg of AF/kg of feed, whereas body weight of lambs consuming HSCAS plus AF did not differ from that of control wethers. The AF-alone treatment increased serum aspartate transaminase and gamma-glutamyltransferase activities, prothrombin time, and cholesterol, uric acid, and triglyceride values and decreased albumin, glucose, and urea nitrogen values, and urea-to-creatine ratio.(ABSTRACT TRUNCATED AT 250 WORDS) JF - American journal of veterinary research AU - Harvey, R B AU - Kubena, L F AU - Phillips, T D AU - Corrier, D E AU - Elissalde, M H AU - Huff, W E AD - United States Department of Agriculture, Food Animal Protection Research Laboratory, College Station, TX 77840. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 152 EP - 156 VL - 52 IS - 1 SN - 0002-9645, 0002-9645 KW - Aflatoxins KW - 0 KW - Aluminum Silicates KW - Zeolites KW - 1318-02-1 KW - Index Medicus KW - Animals KW - Random Allocation KW - Animal Feed -- toxicity KW - Mycotoxicosis -- prevention & control KW - Mycotoxicosis -- veterinary KW - Male KW - Aluminum Silicates -- pharmacology KW - Sheep KW - Food Contamination KW - Aflatoxins -- toxicity KW - Aflatoxins -- antagonists & inhibitors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80534407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Diminution+of+aflatoxin+toxicity+to+growing+lambs+by+dietary+supplementation+with+hydrated+sodium+calcium+aluminosilicate.&rft.au=Harvey%2C+R+B%3BKubena%2C+L+F%3BPhillips%2C+T+D%3BCorrier%2C+D+E%3BElissalde%2C+M+H%3BHuff%2C+W+E&rft.aulast=Harvey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=1&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Toxicity of pyrrolizidine alkaloids from Riddell groundsel (Senecio riddellii) to cattle. AN - 80530451; 2021243 AB - The toxicity of Riddell groundsel (Senecio riddellii) gavaged to calves at a known lethal rate was compared with the toxicity of riddelliine and riddelliine N-oxide, the pyrrolizidine alkaloids isolated from the plant, which were fed by intraruminal infusion. Doses of the alkaloids were adjusted to the amount determined to be in the plant and fed individually and in combination. The relative toxicosis in the calves was measured by clinical signs, serum enzyme changes, survival time to morbidity, and histologic changes. Calves fed Senecio riddellii by gavage for 20 consecutive days to provide 45 mg of total pyrrolizidine alkaloids/kg of body weight/d developed clinical signs and serum enzyme changes typical of seneciosis, with 100% morbidity. However, calves receiving riddelliine at 4.5 mg/kg/d for 20 days had neither serum enzyme changes nor clinical signs of pyrrolizidine alkaloidosis. Calves treated with riddelliine N-oxide (40.5 mg/kg/d), and with riddelliine (4.5 mg/kg/d) and riddelliine N-oxide (40.5 mg/kg/d) in combination, had 100% morbidity, although the latter group had fewer liver lesions. These results establish that the N-oxide form of the alkaloid alone is capable of inducing typical Senecio toxicosis in cattle and that the free base level of the plant cannot be considered to be the sole factor in assessing the toxicity of S riddellii. JF - American journal of veterinary research AU - Molyneux, R J AU - Johnson, A E AU - Olsen, J D AU - Baker, D C AD - Western Regional Research Center, USDA, Albany, CA 94710. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 146 EP - 151 VL - 52 IS - 1 SN - 0002-9645, 0002-9645 KW - Pyrrolizidine Alkaloids KW - 0 KW - riddelliine KW - 23246-96-0 KW - riddelliine N-oxide KW - 75056-11-0 KW - Index Medicus KW - Weight Gain -- drug effects KW - Animals KW - Cattle KW - Weight Loss -- drug effects KW - Intubation, Gastrointestinal -- veterinary KW - Female KW - Senecio KW - Plants, Toxic KW - Plant Poisoning -- pathology KW - Pyrrolizidine Alkaloids -- isolation & purification KW - Plant Poisoning -- veterinary KW - Pyrrolizidine Alkaloids -- administration & dosage KW - Pyrrolizidine Alkaloids -- toxicity KW - Cattle Diseases -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80530451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+journal+of+veterinary+research&rft.atitle=Toxicity+of+pyrrolizidine+alkaloids+from+Riddell+groundsel+%28Senecio+riddellii%29+to+cattle.&rft.au=Molyneux%2C+R+J%3BJohnson%2C+A+E%3BOlsen%2C+J+D%3BBaker%2C+D+C&rft.aulast=Molyneux&rft.aufirst=R&rft.date=1991-01-01&rft.volume=52&rft.issue=1&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=American+journal+of+veterinary+research&rft.issn=00029645&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-05-28 N1 - Date created - 1991-05-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Aspergillus flavus and aflatoxins B1, B2, and M1 in corn associated with equine death. AN - 80452584; 1670319 AB - Corn from an Arkansas farm, where three horses died and others became sick, was investigated for causative principles. Necropsy of the three horses revealed what appeared to be severe hepatic necrosis. Histopathological examination indicated a pattern of hepatic lesions that was suggestive of aflatoxin contamination of the feed. Mycological examination of the corn by dilution plating revealed 95% of the colonies as Aspergillus flavus. Chemical analysis of the corn for mycotoxins was positive for aflatoxin B1, B2, and M1 at concentrations of 114, 10, and 6 micrograms/Kg, respectively. Cyclopiazonic acid, sterigmatocystin, and the Fusarium toxins, vomitoxin (deoxynivalenol), T-2 toxin, and diacetoxyscirpenol, were not detected. The presence of aflatoxin metabolites in the moldy corn and the presence of appropriate lesions were compatible with the diagnosis, equine aflatoxicosis. JF - Archives of environmental contamination and toxicology AU - Vesonder, R AU - Haliburton, J AU - Stubblefield, R AU - Gilmore, W AU - Peterson, S AD - Northern Regional Research Center USDA-Agricultural Research Service, Peoria, Illinois 61604. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 151 EP - 153 VL - 20 IS - 1 SN - 0090-4341, 0090-4341 KW - Aflatoxins KW - 0 KW - Index Medicus KW - Animals KW - Necrosis KW - Aspergillus flavus KW - Food Contamination KW - Horses KW - Mice KW - Male KW - Female KW - Aflatoxins -- analysis KW - Horse Diseases -- chemically induced KW - Zea mays -- microbiology KW - Liver Diseases -- veterinary KW - Horse Diseases -- mortality KW - Mycotoxicosis -- pathology KW - Zea mays -- chemistry KW - Liver Diseases -- mortality KW - Mycotoxicosis -- mortality KW - Liver Diseases -- pathology KW - Animal Feed -- analysis KW - Mycotoxicosis -- veterinary KW - Aflatoxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80452584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Aspergillus+flavus+and+aflatoxins+B1%2C+B2%2C+and+M1+in+corn+associated+with+equine+death.&rft.au=Vesonder%2C+R%3BHaliburton%2C+J%3BStubblefield%2C+R%3BGilmore%2C+W%3BPeterson%2C+S&rft.aulast=Vesonder&rft.aufirst=R&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-28 N1 - Date created - 1991-03-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Biophysical alteration of lung surfactant by extracts of cotton dust. AN - 80444024; 1993159 AB - Byssinosis, a lung disease that can affect cotton mill workers, may be caused in part by lipopolysaccharides (LPS) from Gram negative bacteria. In vitro, LPS complexes with sheep lung surfactant (SLS). To determine whether LPS in extracts of cotton dust alters the biophysical characteristics of lung surfactant, aqueous extracts (1.0% w:v) of sterile surgical cotton (SSC) and a bulk raw cotton dust (1182DB) were prepared. Aliquots of the soluble extracts were incubated with SLS and studied by sucrose gradient centrifugation, surface tension analysis, and high pressure liquid chromatography (HPLC). The chromatography was employed to analyse for 3-hydroxymyristate (3-HM), a fatty acid indicating LPS. Also, purified Enterobacter agglomerans LPS and 3-HM as controls and as mixtures with SLS, were studied by HPLC. Sucrose gradient centrifugation showed that SLS-SSC, SLS-1182DB, and the SLS control had similar densities that differed from the remaining controls. The SLS-1182DB exhibited a floccule absent in the other samples. Surface tension values of SLS-SSC and SLS-1182DB differed significantly from all controls but only slightly from one another. 3-Hydroxymyristate was detected by HPLC in the 3-HM control, EA-LPS, SLS-EA-LPS, and SLS-1182DB, but not in SLS-SSC or the remaining controls. Apparently, 3-HM was below the HPLC detection range in SSC. The data indicate that LPS in the 1182DB, SSC and EA-LPS samples complexed with SLS. Floccule development in SLS-1182DB but not in SLS-EA-LPS suggests a further component(s) present in the bulk raw cotton dust, as well as LPS, which complexes with SLS. The data suggest that biophysical alterations to lung surfactant may play a part in the pathogenesis of byssinosis. JF - British journal of industrial medicine AU - DeLucca, A J AU - Brogden, K A AU - Catalano, E A AU - Morris, N M AD - Composition and Properties Research Unit, Southern Regional Research Center, New Orleans, Louisiana. Y1 - 1991/01// PY - 1991 DA - January 1991 SP - 41 EP - 47 VL - 48 IS - 1 SN - 0007-1072, 0007-1072 KW - Lipopolysaccharides KW - 0 KW - Myristic Acids KW - Pulmonary Surfactants KW - beta-hydroxymyristic acid KW - 1961-72-4 KW - Index Medicus KW - Centrifugation, Density Gradient KW - Animals KW - Surface Tension KW - Sheep KW - In Vitro Techniques KW - Disease Models, Animal KW - Flocculation KW - Myristic Acids -- metabolism KW - Chromatography, High Pressure Liquid KW - Byssinosis -- etiology KW - Lipopolysaccharides -- pharmacology KW - Enterobacter KW - Gossypium -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80444024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=British+journal+of+industrial+medicine&rft.atitle=Biophysical+alteration+of+lung+surfactant+by+extracts+of+cotton+dust.&rft.au=DeLucca%2C+A+J%3BBrogden%2C+K+A%3BCatalano%2C+E+A%3BMorris%2C+N+M&rft.aulast=DeLucca&rft.aufirst=A&rft.date=1991-01-01&rft.volume=48&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=British+journal+of+industrial+medicine&rft.issn=00071072&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-03-15 N1 - Date created - 1991-03-15 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Anal Biochem. 1970 Jul;36(1):225-6 [5482631] Annu Rev Med. 1976;27:127-41 [779593] Biken J. 1977 Mar;20(1):5-10 [880206] Ann Occup Hyg. 1978 Dec;21(3):239-50 [751550] J Clin Invest. 1979 May;63(5):1015-8 [447823] Am Rev Respir Dis. 1979 Aug;120(2):429-39 [112895] Environ Health Perspect. 1984 Apr;55:227-37 [6376100] Ann Intern Med. 1984 Aug;101(2):157-63 [6742645] J Chromatogr. 1984 Jun 8;308:19-29 [6746814] Am Rev Respir Dis. 1984 Aug;130(2):225-30 [6547813] Am Rev Respir Dis. 1985 Mar;131(3):439-60 [2858175] J Appl Physiol (1985). 1985 Nov;59(5):1402-9 [3840800] Agents Actions. 1985 Sep;16(6):521-6 [4072829] Am J Pathol. 1986 Jan;122(1):140-51 [3510552] Br J Ind Med. 1986 Mar;43(3):182-7 [3947581] Am J Vet Res. 1986 Apr;47(4):727-9 [3754402] Br J Ind Med. 1961 Apr;18:120-9 [13734460] Br J Ind Med. 1960 Oct;17:304-6 [13778564] Ann Intern Med. 1964 Jan;60:39-46 [14104855] Scand J Work Environ Health. 1985 Jun;11(3 Spec No):199-206 [4035322] J Clin Invest. 1981 Feb;67(2):370-5 [6780608] J Appl Physiol Respir Environ Exerc Physiol. 1981 Jul;51(1):1-7 [7263402] J Clin Invest. 1982 Sep;70(3):673-83 [6896715] Lab Invest. 1983 Apr;48(4):458-70 [6339812] Environ Health Perspect. 1983 Sep;51:81-4 [6315386] Environ Health Perspect. 1984 Apr;55:205-26 [6145585] Environ Health Perspect. 1986 Apr;66:97-103 [3709489] Infect Immun. 1986 Jun;52(3):644-9 [3754848] Am Ind Hyg Assoc J. 1986 Aug;47(8):437-42 [3751893] Appl Environ Microbiol. 1986 Sep;52(3):510-4 [3094448] Circ Shock. 1986;20(1):25-34 [3094976] Am Rev Respir Dis. 1987 Jan;135(1):83-6 [3541718] Toxicol Appl Pharmacol. 1987 May;88(3):354-69 [3107166] Br J Ind Med. 1987 Sep;44(9):577-9 [3663524] Lung. 1988;166(1):25-31 [2891880] Am Ind Hyg Assoc J. 1988 Feb;49(2):81-8 [3282417] J Clin Microbiol. 1988 Apr;26(4):778-80 [3366873] Am Rev Respir Dis. 1988 Jun;137(6):1441-8 [3059861] Am J Vet Res. 1989 Apr;50(4):555-9 [2712422] Can J Biochem Physiol. 1959 Jan;37(1):91-102 [13618766] N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Effects of dietary boron on calcium and mineral metabolism in the streptozotocin-injected, vitamin D3-deprived rat. AN - 72779837; 1669022 AB - Dietary boron, in concentrations similar to that found in human diets comprised mainly of fruits and vegetables, affects both mineral and energy metabolism. Therefore, the effects of boron on a model system with a perturbed metabolic insulin-vitamin D3 axis was examined. Weanling male rats were fed a ground corn-high protein casein-corn oil-based diet (0.06 mg B/kg; no supplemental vitamin D3) supplemented with B (as orthoboric acid) at 0 or 2.4 mg/kg. After 55 days, all rats were equilibrated in individual metabolic cages for 6 days. After another 6 days, one half of the rats in both dietary groups were injected intraperitoneally with streptozotocin (STZ). All rats were killed 3 days after STZ treatment. STZ affected many aspects of mineral metabolism as expected. Plasma ionized calcium concentrations fell by approximately 10% in STZ-treated rats. Brain and heart mineral metabolism was spared from the toxic effects of STZ whereas spleen mineral metabolism was especially vulnerable to STZ. Supplemental dietary boron increased urinary excretion of calcium in the non-STZ rats but did not affect the plasma concentrations of alkaline phosphatase, ionized calcium or the concentration of calcium in the brains, lungs, kidneys and spleens of those animals. Supplemental dietary boron temporarily reduced the abnormally elevated renal excretion of albumin, potassium and sodium during the acute phase of diabetes mellitus. On the other hand, physiological amounts of dietary boron exacerbated the abnormally elevated rate of collagen breakdown in the STZ animal. Finally, boron may have indirectly affected heart mineral metabolism because dietary boron did not affect cardiac boron concentrations but did affect cardiac copper, calcium, manganese, molybdenum and phosphorus concentrations, primarily in non-STZ rats. The findings suggest that dietary boron has both protective and regulatory roles in mineral metabolism. JF - Magnesium and trace elements AU - Hunt, C D AU - Herbel, J L AD - USDA, Grand Forks Human Nutrition Research Center, N. Dak. PY - 1991 SP - 387 EP - 408 VL - 10 IS - 5-6 SN - 1015-3845, 1015-3845 KW - Minerals KW - 0 KW - Trace Elements KW - Cholecalciferol KW - 1C6V77QF41 KW - Streptozocin KW - 5W494URQ81 KW - Sodium KW - 9NEZ333N27 KW - Magnesium KW - I38ZP9992A KW - Boron KW - N9E3X5056Q KW - Potassium KW - RWP5GA015D KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Animals KW - Kidney -- metabolism KW - Albuminuria KW - Liver -- metabolism KW - Brain -- metabolism KW - Trace Elements -- metabolism KW - Myocardium -- metabolism KW - Potassium -- metabolism KW - Calcium -- metabolism KW - Magnesium -- metabolism KW - Rats KW - Rats, Sprague-Dawley KW - Male KW - Sodium -- metabolism KW - Vitamin D Deficiency -- metabolism KW - Boron -- pharmacology KW - Diabetes Mellitus, Experimental -- metabolism KW - Cholecalciferol -- deficiency KW - Minerals -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72779837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnesium+and+trace+elements&rft.atitle=Effects+of+dietary+boron+on+calcium+and+mineral+metabolism+in+the+streptozotocin-injected%2C+vitamin+D3-deprived+rat.&rft.au=Hunt%2C+C+D%3BHerbel%2C+J+L&rft.aulast=Hunt&rft.aufirst=C&rft.date=1991-01-01&rft.volume=10&rft.issue=5-6&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Magnesium+and+trace+elements&rft.issn=10153845&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1993-10-22 N1 - Date created - 1993-10-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Plant resistance mechanisms to air pollutants: rhythms in ascorbic acid production during growth under ozone stress. AN - 72669006; 1797413 AB - Relationships between ozone (O3) tolerance and leaf ascorbic acid concentrations in O3-susceptible (O3-S) 'Hark' and O3-resistant (O3-R) 'Hood' soybean, Glycine max (L.) Merr., cultivars were examined with high-performance liquid chromatography (HPLC). Leaf samples were analyzed at 4 intervals during a 24 h period. Soybean cultivars grown in the greenhouse with charcoal filtered (CF) and nonfiltered (NF) air showed daily oscillations in ascorbic acid production. Highest ascorbic acid levels in leaves during light coincided with highest concentrations of photochemical oxidants in the atmosphere at 2:00 p.m. The resistant genotype produced more ascorbic acid in its trifoliate leaves than did the corresponding susceptible genotype. Under CF air (an O3-reduced environment) O3-S and O3-R cultivars showed rhythms in ascorbic acid production. In NF air (an O3 stress environment) the O3-R cultivar alone showed rhythms in ascorbic acid production. Results indicated that superior O3 tolerance in the Hood soybean cultivar (compared with Hark) was associated with a greater increase in endogenous levels of ascorbic acid. Ascorbic acid may scavenge free radicals and thereby protect cells from injury by O3 or other oxyradical products. Plants defend themselves against photochemical oxidant stress, such as O3, by several mechanisms. Experimental evidence indicates that antioxidant defense systems existing in plant tissues may function to protect cellular components from deleterious effects of photochemical oxidants through endogenous and exogenous controls. JF - Chronobiology international AU - Lee, E H AD - Climate Stress Laboratory, USDA, ARS, Beltsville, Maryland 20705. Y1 - 1991 PY - 1991 DA - 1991 SP - 93 EP - 102 VL - 8 IS - 2 SN - 0742-0528, 0742-0528 KW - Air Pollutants KW - 0 KW - Free Radical Scavengers KW - Ozone KW - 66H7ZZK23N KW - Ascorbic Acid KW - PQ6CK8PD0R KW - Index Medicus KW - Plant Development KW - Drug Resistance KW - Adaptation, Physiological KW - Air Pollutants -- toxicity KW - Soybeans KW - Ascorbic Acid -- biosynthesis KW - Plants -- metabolism KW - Periodicity KW - Plants -- drug effects KW - Ozone -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72669006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chronobiology+international&rft.atitle=Plant+resistance+mechanisms+to+air+pollutants%3A+rhythms+in+ascorbic+acid+production+during+growth+under+ozone+stress.&rft.au=Lee%2C+E+H&rft.aulast=Lee&rft.aufirst=E&rft.date=1991-01-01&rft.volume=8&rft.issue=2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Chronobiology+international&rft.issn=07420528&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1992-04-13 N1 - Date created - 1992-04-13 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Prevention of adverse effects of food browning. AN - 72108901; 1897392 AB - Amino-carbonyl interactions of food constituents encompass those changes commonly termed browning reactions. Such reactions are responsible for deleterious post-harvest changes during processing and storage and may adversely affect the appearance, organoleptic properties, nutritional quality, and safety of a wide spectrum of foods. A growing area of concern is nutritional carcinogenesis, in which nutritionally linked cancer has been associated with amino-carbonyl reaction products. Specific practical and theoretical approaches to prevent adverse effects of food browning include: (1) modification and removal of primary reactants and endproducts in the browning reaction; (2) prevention of deleterious browning reactions through the use of antioxidants; (3) blocking of in vivo toxicant formation from browning products by means of dietary modulation; (4) accurate estimation of low levels of browning products in whole foods and their removal through antibody complexation; and (5) stimulation of inactivation in vivo toxicants from browning products by use of amino acids and sulfur-rich proteins. JF - Advances in experimental medicine and biology AU - Friedman, M AD - USDA, ARS, Western Regional Research Center, Albany, CA 94710. Y1 - 1991 PY - 1991 DA - 1991 SP - 171 EP - 215 VL - 289 SN - 0065-2598, 0065-2598 KW - Carcinogens KW - 0 KW - Mutagens KW - Index Medicus KW - Animals KW - Vegetables KW - Beverages KW - Humans KW - Fruit KW - Carcinogens -- metabolism KW - Maillard Reaction KW - Mutagens -- metabolism KW - Neoplasms -- prevention & control KW - Neoplasms -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72108901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+experimental+medicine+and+biology&rft.atitle=Prevention+of+adverse+effects+of+food+browning.&rft.au=Friedman%2C+M&rft.aulast=Friedman&rft.aufirst=M&rft.date=1991-01-01&rft.volume=289&rft.issue=&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Advances+in+experimental+medicine+and+biology&rft.issn=00652598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-24 N1 - Date created - 1991-10-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - JOUR T1 - Formation, nutritional value, and safety of D-amino acids. AN - 72107915; 1897404 AB - The extent of racemization of L-amino acid residues to D-isomers in food proteins increases with pH, time, and temperature. The nutritional utilization of different D-amino acids vary widely, both in animals and humans. In addition, some D-amino acids may be deleterious. For example, although D-phenylalanine is nutritionally available as a source of L-phenylalanine, high concentrations of D-tyrosine inhibit the growth of mice. The antimetabolic effect of D-tyrosine can be minimized by increasing the L-phenylalanine content of the diet. Similarly, L-cysteine has a sparing effect on L-methionine when fed to mice; however, D-cysteine does not. The wide variation in the utilization of D-amino acids is exemplified by the fact that D-lysine is not utilized as a source of L-lysine, whereas the utilization of D-methionine as a source of the L-isomer for growth is dose-dependent, reaching 76% of the value obtained with L-methionine. Both D-serine and the mixture of L-L and L-D isomers of lysinoalanine induce histological changes in the rat kidneys. D-tyrosine, D-serine, and lysinoalanine are produced in significant amounts under the influence of even short periods of alkaline treatment. Unresolved is whether the biological effects of D-amino acids vary, depending on whether they are consumed in the free state or as part of a food protein. Possible, metabolic interaction, antagonism, or synergism among D-amino acids in vivo also merits further study. The described results with mice complement related studies with other species and contribute to the understanding of nutritional and toxicological consequences of ingesting D-amino acids. Such an understanding will make it possible to devise food processing conditions to minimize or prevent the formation of undesirable D-amino acids in food proteins and to prepare better and safer foods. JF - Advances in experimental medicine and biology AU - Friedman, M AD - Western Regional Research Center, U.S. Department of Agriculture, Albany, California 94710. Y1 - 1991 PY - 1991 DA - 1991 SP - 447 EP - 481 VL - 289 SN - 0065-2598, 0065-2598 KW - Amino Acids KW - 0 KW - Dietary Proteins KW - Proteins KW - Index Medicus KW - Dietary Proteins -- standards KW - Animals KW - Stereoisomerism KW - Dietary Proteins -- metabolism KW - Nutritive Value KW - Dose-Response Relationship, Drug KW - Humans KW - Dietary Proteins -- adverse effects KW - Weight Gain KW - Amino Acids -- standards KW - Amino Acids -- chemistry KW - Amino Acids -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72107915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+experimental+medicine+and+biology&rft.atitle=Formation%2C+nutritional+value%2C+and+safety+of+D-amino+acids.&rft.au=Friedman%2C+M&rft.aulast=Friedman&rft.aufirst=M&rft.date=1991-01-01&rft.volume=289&rft.issue=&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Advances+in+experimental+medicine+and+biology&rft.issn=00652598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1991-10-24 N1 - Date created - 1991-10-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-17 ER - TY - CPAPER T1 - The Algebraic Solution of the Inequality Process T2 - American Sociological Association AN - 61721053; 91S24908 AB - The inequality process is a stochastic model of competition for wealth in which having wealth is an advantage. An abstraction of the surplus theory of social stratification, the inequality process has been solved numerically for its sociological implications. Here, simplified versions of it are solved algebraically for its stationary distribution & then generalized. Analysis shows similarities between the well known Ehrenfest Diffusion Model & the inequality process, although the latter is a concentrating diffusion, whereas the usual form of the Ehrenfest Diffusion is a dissipating diffusion. JF - American Sociological Association AU - Angle, John C Y1 - 1991///0, PY - 1991 DA - 0, 1991 KW - inequality process, competition for wealth, algebraic solution KW - Income Inequality KW - Wealth KW - Theoretical Problems KW - Competition KW - Models KW - proceeding KW - 0161: methodology and research technology; models: mathematical & other UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61721053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Sociological+Association&rft.atitle=The+Algebraic+Solution+of+the+Inequality+Process&rft.au=Angle%2C+John+C&rft.aulast=Angle&rft.aufirst=John&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Sociological+Association&rft.issn=&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2009-03-10 N1 - Publication note - 1991 N1 - Last updated - 2016-09-28 ER - TY - JOUR T1 - Sealing abandoned farm wells in North Dakota; a practical approach AN - 52411330; 2000-005154 JF - Annual Meeting - Association of Engineering Geologists AU - Reed, Carol A AU - Fredrickson, Dean AU - Seelig, Bruce AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 904 EP - 911 PB - Association of Engineering Geologists, [location varies] VL - 34 SN - 0375-572X, 0375-572X KW - United States KW - methods KW - Barnes County North Dakota KW - sand KW - sealing KW - bentonite KW - clastic sediments KW - North Dakota KW - sedimentary rocks KW - abandoned water wells KW - sediments KW - cement KW - water wells KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+-+Association+of+Engineering+Geologists&rft.atitle=Sealing+abandoned+farm+wells+in+North+Dakota%3B+a+practical+approach&rft.au=Reed%2C+Carol+A%3BFredrickson%2C+Dean%3BSeelig%2C+Bruce%3BAnonymous&rft.aulast=Reed&rft.aufirst=Carol&rft.date=1991-01-01&rft.volume=34&rft.issue=&rft.spage=904&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+-+Association+of+Engineering+Geologists&rft.issn=0375572X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Association of Engineering Geologists 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - CAGPAV N1 - SubjectsTermNotLitGenreText - abandoned water wells; Barnes County North Dakota; bentonite; cement; clastic rocks; clastic sediments; methods; North Dakota; sand; sealing; sedimentary rocks; sediments; United States; water wells ER - TY - JOUR T1 - Soil erosion control; the 1990 Farm Bill AN - 51527783; 2006-085861 JF - Proceedings - Governor's Conference on the Management of the Illinois River System AU - Krapf, Thomas J AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 110 EP - 111 PB - [University of Illinois Water Resources Center], [Urbana, IL] VL - 3 KW - United States KW - soils KW - protection KW - water quality KW - Food Agriculture Conservation and Trade Act KW - erosion KW - legislation KW - agriculture KW - habitat KW - wetlands KW - erosion control KW - soil erosion KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51527783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Governor%27s+Conference+on+the+Management+of+the+Illinois+River+System&rft.atitle=Soil+erosion+control%3B+the+1990+Farm+Bill&rft.au=Krapf%2C+Thomas+J%3BAnonymous&rft.aulast=Krapf&rft.aufirst=Thomas&rft.date=1991-01-01&rft.volume=3&rft.issue=&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Governor%27s+Conference+on+the+Management+of+the+Illinois+River+System&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third biennial conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - IL] N1 - Last updated - 2012-06-07 N1 - CODEN - #03899 N1 - SubjectsTermNotLitGenreText - agriculture; erosion; erosion control; Food Agriculture Conservation and Trade Act; habitat; land use; legislation; protection; soil erosion; soils; United States; water quality; wetlands ER - TY - JOUR T1 - Recent progress in modelling water flow and chemical transport in the unsaturated zone AN - 50451789; 1992-030792 JF - IAHS-AISH Publication AU - Van Genuchten, Martinus T A2 - Kienitz, G. A2 - Milly, P. C. D. A2 - Van Genuchten, Martinus T. A2 - Rosbjerg, D. A2 - Shuttleworth, W. J. Y1 - 1991 PY - 1991 DA - 1991 SP - 169 EP - 183 PB - International Association of Hydrological Sciences, [Louvain] VL - 204 SN - 0144-7815, 0144-7815 KW - processes KW - sedimentation KW - data processing KW - unsaturated zone KW - solutes KW - hydrogeology KW - solution KW - ground water KW - models KW - transport KW - Richards equation KW - geochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50451789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=Recent+progress+in+modelling+water+flow+and+chemical+transport+in+the+unsaturated+zone&rft.au=Van+Genuchten%2C+Martinus+T&rft.aulast=Van+Genuchten&rft.aufirst=Martinus&rft.date=1991-01-01&rft.volume=204&rft.issue=&rft.spage=169&rft.isbn=0947571132&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Hydrological interactions between atmosphere, soil and vegetation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1992-01-01 N1 - Number of references - 83 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - data processing; geochemistry; ground water; hydrogeology; models; processes; Richards equation; sedimentation; solutes; solution; transport; unsaturated zone ER - TY - JOUR T1 - Understanding salt and sodium in soils, irrigation water and shallow groundwaters; a companion to the software program, SWAGMAN-Whatif AN - 50352014; 1993-015205 JF - CSIRO Water Resources Series AU - Robbins, C W AU - Meyer, W S AU - Prathapar, S A AU - White, R J G Y1 - 1991 PY - 1991 DA - 1991 SP - 24 PB - CSIRO Division Water Resour., Canberra, A.C.T. SN - 1032-1403, 1032-1403 KW - soils KW - toxic materials KW - chemically precipitated rocks KW - pollutants KW - reclamation KW - data processing KW - alkali metals KW - pollution KW - sodium KW - salinity KW - evaporites KW - irrigation KW - ground water KW - SWAGMAN-Whatif KW - computer programs KW - physical properties KW - sedimentary rocks KW - metals KW - salt KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50352014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Robbins%2C+C+W%3BMeyer%2C+W+S%3BPrathapar%2C+S+A%3BWhite%2C+R+J+G&rft.aulast=Robbins&rft.aufirst=C&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Understanding+salt+and+sodium+in+soils%2C+irrigation+water+and+shallow+groundwaters%3B+a+companion+to+the+software+program%2C+SWAGMAN-Whatif&rft.title=Understanding+salt+and+sodium+in+soils%2C+irrigation+water+and+shallow+groundwaters%3B+a+companion+to+the+software+program%2C+SWAGMAN-Whatif&rft.issn=10321403&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - Number of references - 14 N1 - PubXState - A.C.T. N1 - Document feature - illus. incl. 2 tables, block diag. N1 - SuppNotes - Includes 2 appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; chemically precipitated rocks; computer programs; data processing; evaporites; ground water; irrigation; metals; physical properties; pollutants; pollution; reclamation; salinity; salt; sedimentary rocks; sodium; soils; SWAGMAN-Whatif; toxic materials ER - TY - JOUR T1 - An inventory of Ohio soils; Holmes County AN - 50320140; 1993-039694 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Seaholm, J E AU - Graham, T E Y1 - 1991 PY - 1991 DA - 1991 SP - 52 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Holmes County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50320140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Seaholm%2C+J+E%3BGraham%2C+T+E&rft.aulast=Seaholm&rft.aufirst=J&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Holmes+County&rft.title=An+inventory+of+Ohio+soils%3B+Holmes+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - Holmes County Ohio; maps; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - An inventory of Ohio soils; Meigs County AN - 50318511; 1993-039695 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Gilmore, G M AU - Bottrell, G D Y1 - 1991 PY - 1991 DA - 1991 SP - 36 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Meigs County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50318511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gilmore%2C+G+M%3BBottrell%2C+G+D&rft.aulast=Gilmore&rft.aufirst=G&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Meigs+County&rft.title=An+inventory+of+Ohio+soils%3B+Meigs+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - maps; Meigs County Ohio; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - An inventory of Ohio soils; Muskingum County AN - 50318485; 1993-039693 JF - Progress Report - Ohio. Division of Soil and Water Conservation AU - Steiger, J R Y1 - 1991 PY - 1991 DA - 1991 SP - 77 PB - Ohio Division of Soil and Water Conservation, Columbus, OH SN - 0888-5141, 0888-5141 KW - Type: colored soils map KW - United States KW - soils KW - maps KW - Muskingum County Ohio KW - soil surveys KW - surveys KW - soils maps KW - Ohio KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50318485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Steiger%2C+J+R&rft.aulast=Steiger&rft.aufirst=J&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=An+inventory+of+Ohio+soils%3B+Muskingum+County&rft.title=An+inventory+of+Ohio+soils%3B+Muskingum+County&rft.issn=08885141&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1993-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRONDO N1 - SubjectsTermNotLitGenreText - maps; Muskingum County Ohio; Ohio; soil surveys; soils; soils maps; surveys; United States ER - TY - JOUR T1 - Leonardo da Vinci's tree and the law of channel widths; combining quantitative geomorphology and art in education AN - 50065762; 1996-016762 JF - Abstracts with Programs - Geological Society of America AU - Shepherd, Russell G AU - Ellis, Beverly N AU - Anonymous Y1 - 1991 PY - 1991 DA - 1991 SP - 321 EP - 322 PB - Geological Society of America (GSA), Boulder, CO VL - 23 IS - 5 SN - 0016-7592, 0016-7592 KW - K-12 education KW - quantitative geomorphology KW - channel geometry KW - elementary school KW - da Vinci, Leonardo KW - fluvial features KW - drainage patterns KW - channels KW - education KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50065762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Leonardo+da+Vinci%27s+tree+and+the+law+of+channel+widths%3B+combining+quantitative+geomorphology+and+art+in+education&rft.au=Shepherd%2C+Russell+G%3BEllis%2C+Beverly+N%3BAnonymous&rft.aulast=Shepherd&rft.aufirst=Russell&rft.date=1991-01-01&rft.volume=23&rft.issue=5&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 1991 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - channel geometry; channels; da Vinci, Leonardo; drainage patterns; education; elementary school; fluvial features; K-12 education; quantitative geomorphology ER - TY - JOUR T1 - Sensitivity of soil freezing simulated by the SHAW model AN - 25439096; 2001-63-033189 (CE); 2001-63-005439 (MT); 0125418 (EN) AB - Sensitivity analyses conducted on hydrologic models are useful for understanding the complicated interactions of hydrologic processes and for demonstrating the potential errors resulting from incorrect estimation of input parameters. The effects of typical changes (measurement errors or natural variability) in input parameters on soil freezing as simulated by the Simultaneous Heat and Water (SHAW) model were investigated. The SHAW model simulates the interrelated heat and water transfer within snow, residue, and soil using estimated or measured weather data. Simulated frost depth was found to be very sensitive to small changes in air temperature (1 degree C) and initial snow depth (10 cm). Simulated frost depth was also potentially sensitive to the specified soil temperature for the lower boundary depending on the proximity of frost depth to the depth of the simulated profile. Site, residue soil characteristics having the greatest impact on simulated frost were slope, thickness of the residue layer, thermal conductivity of soil particles, soil bulk density, and a surface roughness parameter. Soil hydraulic parameters had little effect on frost depth, but had a large impact on water movement toward the zone of freezing and ice content of the frozen soil. JF - TRANS ASAE AU - Flerchinger, G N AD - USDA-Agricultural Research Service, Boise, ID, USA PY - 1991 SP - 2381 EP - 2389 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 34 IS - 6 SN - 0001-2351, 0001-2351 KW - Civil Engineering (CE); Mechanical & Transportation Engineering (MT); Environmental Engineering (EN) KW - Ice KW - Depth profiling KW - Freezing KW - Residues KW - Errors KW - Sensitivity KW - Bulk density KW - Hydraulics KW - Boundaries KW - Thermal conductivity KW - Frozen soils KW - Variability KW - Climatology KW - Distance KW - Roughness KW - Article KW - EE 641:HEAT AND MASS TRANSFER KW - EE 444:WATER RESOURCES KW - EE 921:APPLIED MATHEMATICS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 931:APPLIED PHYSICS GENERALLY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25439096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=TRANS+ASAE&rft.atitle=Sensitivity+of+soil+freezing+simulated+by+the+SHAW+model&rft.au=Flerchinger%2C+G+N&rft.aulast=Flerchinger&rft.aufirst=G&rft.date=1991-01-01&rft.volume=34&rft.issue=6&rft.spage=2381&rft.isbn=&rft.btitle=&rft.title=TRANS+ASAE&rft.issn=00012351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Use of graphics to present the results of erosion models AN - 25422739; 2001-63-012195 (CE); 0114148 (EN) AB - This study shows how graphical representations of a watershed system can be used to analyze the runoff and sediment yield. Combining output data from an erosion model, such as runoff, sediment yield, and particle size distribution of the eroded sediment, onto a single screen on a computer monitor, permits immediate analysis as a rainfall event occurs. This study shows how the erosion models CREAMS and ANSWERS can be modified for simulations on small and large watersheds, using graphics to enhance the results. JF - APPL ENG AGRIC AU - Bingner, R L AD - USDA-ARS, Oxford, MS, USA PY - 1991 SP - 193 EP - 197 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 7 IS - 2 SN - 0883-8542, 0883-8542 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Sediments KW - Computer simulation KW - Watersheds KW - Erosion mechanisms KW - Runoff KW - Particle size distribution KW - Output KW - Erosion KW - Mathematical models KW - Rainfall KW - Combining KW - Article KW - EE 631:FLUID FLOW KW - EE 723:COMPUTER SOFTWARE, DATA HANDLING AND APPLICATIONS KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 444:WATER RESOURCES (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25422739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=APPL+ENG+AGRIC&rft.atitle=Use+of+graphics+to+present+the+results+of+erosion+models&rft.au=Bingner%2C+R+L&rft.aulast=Bingner&rft.aufirst=R&rft.date=1991-01-01&rft.volume=7&rft.issue=2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=APPL+ENG+AGRIC&rft.issn=08838542&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Runoff and peak discharges using Green-Ampt infiltration model AN - 25402349; 2001-63-012186 (CE); 0112735 (EN) AB - The Green-Ampt infiltration model is used to predict runoff from 12 rangeland and cropland watersheds in Montana and Wyoming. Soil parameters derived from data in standard USDA soil surveys are used, and 99 rainfall events are modeled. The runoff distributions obtained from the model are then used with a hydrograph model to predict the peak discharge from the watershed. Procedures are applied that adjusted the Green-Ampt infiltration parameters for various cover and condition classes. The model is applied to areas of up to 54 sq mi with a wide variety of soil and cover conditions. The runoff volumes and peak discharges are compared with the measured values and with those predicted by the Soil Conservation Service (SCS) curve-number procedure. The Green-Ampt model predicted both the runoff volume and peak discharge better than the curve-number model. The standard error of estimate was less for the Green-Ampt model in nine of 12 watersheds for runoff volumes and in 11 of 12 watersheds for peak discharges. JF - J HYDRAUL ENG AU - Van Mullem, JA AD - US Dept of Agr Soil Conservation Service, Bozeman, MT, USA PY - 1991 SP - 354 EP - 389 PB - American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA, 20191-4400, USA, [mailto:journal-services@asce.org], [URL:http://www.asce.org] VL - 117 IS - 3 SN - 0733-9429, 0733-9429 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Runoff KW - Watersheds KW - Infiltration KW - Standard error KW - Montana KW - Soil conservation KW - Adjustment KW - Rangelands KW - Rainfall KW - Article KW - EE 444:WATER RESOURCES KW - EE 471:MARINE SCIENCE AND OCEANOGRAPHY KW - EE 921:APPLIED MATHEMATICS (EN) KW - EE 483:SOIL MECHANICS AND FOUNDATIONS KW - EE 442:FLOOD CONTROL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25402349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=J+HYDRAUL+ENG&rft.atitle=Runoff+and+peak+discharges+using+Green-Ampt+infiltration+model&rft.au=Van+Mullem%2C+JA&rft.aulast=Van+Mullem&rft.aufirst=JA&rft.date=1991-01-01&rft.volume=117&rft.issue=3&rft.spage=354&rft.isbn=&rft.btitle=&rft.title=J+HYDRAUL+ENG&rft.issn=07339429&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Hydrologic effects of clearcutting and stripcutting loblolly pine in the coastal plain. AN - 25239329; 2001-23-004969; 2001-35-001133 (CE); 0126611 (EN) AB - Harvesting 29-year-old loblolly pine (Pinus taeda L.) plantations on six small catchments in the Coastal Plain of west Tennessee caused variable but generally minor increases of stormflow volumes during the four years following harvest. The increases were primarily associated with decreases of rainfall interception rather than with soil disturbance. Harvesting had no effect on stormflow volumes in six nearby catchments of 37-year-old loblolly pine to which the same treatments were applied. Postharvest increases of flow-weighted sediment concentrations averaged higher for the catchments with greater flows at both locations. During the fourth through eighth years after harvest, average sediment concentrations for harvested catchments at each location approximated closely the base rate of 62 mg L super(-1) previously defined for undisturbed pine types. Thus, relatively minor postharvest increases of stormflow volumes in the six 29-year-old plantations and increases of sediment concentrations in all 12 catchments were limited to about four years. Nevertheless, because of potential channel erosion, the findings confirm the need to extend stream management zones well up into drainages with intermittent and ephemeral flows wherever water quality is a concern. Despite certain undesirable effects of logging (baring of mineral soil, decreased weight and depth of forest floor, increased soil bulk density), the results demonstrate the high resilience developed by pine planted on severely eroded sites in the southern Coastal Plain. JF - Water Resources Bulletin AU - Ursic, S J AD - USDA Forest Service, Oxford, MS, USA PY - 1991 SP - 925 EP - 938 PB - AMERICAN WATER RESOURCES ASSOCIATION, 4 West Federal St, P O Box 1626, Middleburg, VA, 20118-1626, USA, [mailto:info@awra.org], [URL:http://www.awra.org] VL - 27 IS - 6 SN - 0043-1370, 0043-1370 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Catchments KW - Harvesting KW - Coastal environments KW - Sediments KW - Resources KW - Approximation KW - Plantations KW - Clearcutting KW - Rainfall KW - Logging KW - Bulk density KW - Management KW - Water quality KW - Resilience KW - Erosion KW - Forests KW - Drainage management KW - Drainage channels KW - Floors KW - Article KW - EE 483:SOIL MECHANICS AND FOUNDATIONS (EN) KW - EE 444:WATER RESOURCES KW - EE 821:AGRICULTURAL EQUIPMENT AND METHODS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25239329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Bulletin&rft.atitle=Hydrologic+effects+of+clearcutting+and+stripcutting+loblolly+pine+in+the+coastal+plain.&rft.au=Ursic%2C+S+J&rft.aulast=Ursic&rft.aufirst=S&rft.date=1991-01-01&rft.volume=27&rft.issue=6&rft.spage=925&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Bulletin&rft.issn=00431370&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Development and testing of a water management model (WATRCOM): development AN - 25183521; 2001-33-001885 (CE); 0121903 (EN) AB - Drainage is required in many agricultural watersheds in the southeastern United States for flood prevention and to sustain agricultural production. These drainage improvements often increase the severity of summer droughts by lowering water tables. A computer simulation model, WATRCOM, has been developed to assist in evaluating drainage improvements and the feasibility of using channel water level control. A finite element solution of the Boussinesq equation coupled with water balances in the unsaturated soil and on the surface is used to simulate water movement in three dimensions. Varying soil types and boundary conditions in land areas with irregular drainage channel networks can be considered. Model results are compared to published solutions for drainage to parallel drains. Solutions are also presented for flow in regions near intersecting drains and compared to solutions in regions with parallel drains. JF - TRANS ASAE AU - Parsons, JE AU - Skaggs, R W AU - Doty, C W AD - USDA-ARS, Florence, SC, USA PY - 1991 SP - 120 EP - 128 PB - American Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI, 49085-9659, USA, [mailto:hq@asae.org], [URL:http://www.asae.org] VL - 34 IS - 1 SN - 0001-2351, 0001-2351 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Drains KW - Agricultural management KW - Drainage channels KW - Drainage KW - Joining KW - Floods KW - Computer simulation KW - Watersheds KW - Land KW - Droughts KW - Drainage control KW - Networks KW - Finite element method KW - Water tables KW - Drainage management KW - Realizability KW - Water management KW - Article KW - EE 444:WATER RESOURCES KW - EE 631:FLUID FLOW KW - EE 723:COMPUTER SOFTWARE, DATA HANDLING AND APPLICATIONS KW - EE 821:AGRICULTURAL EQUIPMENT AND METHODS (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25183521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=TRANS+ASAE&rft.atitle=Development+and+testing+of+a+water+management+model+%28WATRCOM%29%3A+development&rft.au=Parsons%2C+JE%3BSkaggs%2C+R+W%3BDoty%2C+C+W&rft.aulast=Parsons&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=34&rft.issue=1&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=TRANS+ASAE&rft.issn=00012351&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Abrasion of crusted soils. Influence of abrader flux and soil properties AN - 25116397; 2001-63-012291 (CE); 0122429 (EN) AB - Surface crusts greatly affect soil susceptibility to wind erosion. Little is known about the effects of soil properties and environmental factors on crust abrasion. In this study, the influence of abrader flux, degree of crust consolidation, and selected soil properties on soil-crust erosion was evaluated and statistically modeled. Fourteen soils, representing a wide range of physical and chemical properties, were evaluated. Soils were subjected to simulated rainfall rates of either 25 or 64 mm h super(-1), air dried, and abraded at mass fluxes of 0.010, 0.025, and 0.050 kg m super(-1) s super(-1). Crust abrasion (abrasion coefficient, AC) was defined as the slope of the linear regression of cumulative soil loss vs. cumulative abrader passage. An analysis of variance indicated that abrader flux, crust consolidation level, soil properties, and their interactions significantly affected (P < 0.05) soil loss. The AC ranged from 3.179 m super(-1) for an organic soil to 0.002 m super(-1) for silt loam and clay soils. The range of AC for unconsolidated soils was from 5 to 5000 times greater than for crusted soils. The mean AC for unconsolidated soils was 40 and 70 times greater than for crusted soils created at rainfall rates of 25 and 64 mm h super(-1), respectively. Regression analyses revealed that the natural logarithm of AC was positively correlated with sand content and the cation-exchange capacity/clay ratio, and negatively correlated with abrader flux. JF - SOIL SCI SOC AM J AU - Zobeck, T M AD - USDA-ARS Conservation and Production Systems Research Unit, Big Spring, TX, USA PY - 1991 SP - 1091 EP - 1097 PB - Soil Science Society of America, 677 South Segoe Road, Madison, WI, 53711, USA, [mailto:lhendrickson@agronomy.org], [URL:http://www.soils.org] VL - 55 IS - 4 SN - 0361-5995, 0361-5995 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Abrasion KW - AC KW - Flux KW - Abrasion resistance KW - Correlation analysis KW - Clay (material) KW - Consolidation KW - Erosion KW - Rainfall KW - Regression analysis KW - Capacity KW - Loams KW - Coefficients KW - Cations KW - Fluxes KW - Variance KW - Mathematical models KW - Silts KW - Regression KW - Article KW - EE 443:METEOROLOGY KW - EE 454:ENVIRONMENTAL ENGINEERING (EN) KW - EE 802:CHEMICAL APPARATUS AND PLANTS KW - EE 483:SOIL MECHANICS AND FOUNDATIONS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/25116397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SOIL+SCI+SOC+AM+J&rft.atitle=Abrasion+of+crusted+soils.+Influence+of+abrader+flux+and+soil+properties&rft.au=Zobeck%2C+T+M&rft.aulast=Zobeck&rft.aufirst=T&rft.date=1991-01-01&rft.volume=55&rft.issue=4&rft.spage=1091&rft.isbn=&rft.btitle=&rft.title=SOIL+SCI+SOC+AM+J&rft.issn=03615995&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 ER - TY - JOUR T1 - Effect of Triploid Grass Carp on Submersed Aquatic Plants in Northern California Ponds AN - 19131043; 9200121 AB - Two ponds in Davis, California, were divided and stocked with the equivalent of 30 or 60 triploid grass carp, Ctenopharygodon idella Val. per hectare to determine effects on Eurasian watermilfoil, Myriophyllum spicatum L., sago pondweed, Potamogeton pectinatus L., and Chara sp. In the east pond, after 15 months, Eurasian watermilfoil had not been affected in the 30 fish/ha section and had been stimulated to grow in the 60 fish/ha section. Sago pondweed was reduced by 80% and 100% and Chara spp. was reduced by 2% and 72% at 30 and 60 fish/ha. At initial stocking, little Chara sp. was present in the section with 30 fish/ha. In the west pond, after 15 months, Eurasian watermilfoil had been reduced by 38% and 24%, and sago pondweed by 87% and 100% at 30 and 60 fish/ha. Based on these values, triploid grass carp preference was: sago pondweed > Chara > Eurasian watermilfoil (P < 0.05). A filamentous alga, Cladophora sp., disappeared from areas not surrounded by exclosures nine months after fish introduction. Nutritional variables of Kjeldahl nitrogen, fat, ash, and acid detergent fiber did not correlate with plant fresh weight consumed. (Author's abstract) JF - California Fish and Game CAFGAX, Vol. 77, No. 1, p 27-35, Winter 1991. 4 fig, 1 tab, 23 ref. AU - Pine, R T AU - Anderson, LWJ AD - USDA Aquatic Weed Control Research Lab., Davis, CA Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - *Aquatic plants KW - *Aquatic weed control KW - *Carp KW - *Limnology KW - *Ponds KW - Algae KW - California KW - Chara KW - Nutrients KW - Plant growth KW - Pondweeds KW - SW 0850:Lakes KW - SW 2010:Control of water on the surface UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19131043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Effect+of+Triploid+Grass+Carp+on+Submersed+Aquatic+Plants+in+Northern+California+Ponds&rft.au=Pine%2C+R+T%3BAnderson%2C+LWJ&rft.aulast=Pine&rft.aufirst=R&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Salinity, Nitrate and Water in Rangeland and Terraced Wheatland above Saline Seeps AN - 19121949; 9109328 AB - Saline seeps have emerged over the past 20 yr in some Southern Plains soils, in Oklahoma, which are cropped annually to winter wheat (Triticum aestivum). Saline seep development is a cumulative process associated with percolation of small increments of water over many years through saline strata in recharge areas to build up water tables over less permeable strata in lower slope positions. In this study, soluble salt, nitrate, water content were determined in Woodward soils (course silty, mixed, thermic Typic Ustochrepts) to a depth of 3 m in terraced farmland in adjacent native rangeland upslope from saline seeps. Significantly (P 0.05) was found in soluble salt content in farmland between terraces as compared to soluble salt in terrace channels. Greater amounts (P < 0.05) of nitrate and water were in the 3 m profiles under farmland than under native range. The soluble salt profiles indicate more water has percolated through the farmland than the rangeland. The implication is cultivated land, both in terrace channels and between terraces, is contributing salt and water to saline seep. An alternative explanation is terrace channels are the major recharge areas and lateral flow of this water leaches salt from farmland between the terraces. Using water before it percolates below the root zone is critical to the control of saline seep. Farm management practices such as rotating wheat with crops that have deeper roots such as sunflower, or use more water such as alfalfa, or double cropping of graze-out forage such as sorghum, may be useful in reducing seep formations. (Doyle-PTT) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 8-11, January/March 1991. 4 fig, 20 ref. AU - Berg, WA AU - Naney, J W AU - Smith, S J AD - USDA-ARS, 2000 18th Street, Woodward, OK 73801 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Groundwater movement KW - Path of pollutants KW - Saline soils KW - Salinity KW - Seeps KW - Agricultural practices KW - Agricultural watersheds KW - Agriculture KW - Leaching KW - Nitrates KW - Oklahoma KW - Percolation KW - Seep water KW - Wheat KW - SW 1030:Use of water of impaired quality KW - SW 2060:Effects on water of human nonwater activities KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Salinity%2C+Nitrate+and+Water+in+Rangeland+and+Terraced+Wheatland+above+Saline+Seeps&rft.au=Berg%2C+WA%3BNaney%2C+J+W%3BSmith%2C+S+J&rft.aulast=Berg&rft.aufirst=WA&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Cumulative Effects of Land Management on Soil and Water Resources: An Overview AN - 19121887; 9109327 AB - The concept of cumulative effects encompasses a broader spectrum of resources and land uses than has typically been evaluated in research. As management pressures in large drainage basins intensify, pristine areas may be subjected to multiple human activities. Timber harvesting, grazing, mining, recreation, site preparation, road construction, vegetation conversion as well as, agricultural applications of fertilizers, pesticides and herbicides can affect ecosystems both on site, and at great distances. Even though individual land uses may not significantly degrade environmental components such as soil productivity, water quality, or aquatic habitat, the combined effects of several activities may be unacceptable. Theoretically , cumulative effects of land management may also provide benefits to portions of ecosystems, such as increased stream productivity generated by nutrient inputs. Cumulative effects of land management must also be evaluated within the context of natural processes and events, such as large storms, wild fire, geochemical weathering, vegetation succession. This overview provides examples of cumulative effects of land management and introduces the papers that were presented at a special symposium held during the American Society of Agronomy meetings in 1989. (Author's abstract) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 1-3, January/March 1991. 27 ref. AU - Sidle, R C AU - Sharpley, AN AD - USDA-For Serv. Intermountain Res. Sta., 860 N. 1200 East Logan, UT 84321 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Ecological effects KW - Environmental effects KW - Land management KW - Land use KW - Agricultural practices KW - Construction KW - Cultivation KW - Grazing KW - Herbicides KW - Logging KW - Nutrients KW - Pesticides KW - SW 2060:Effects on water of human nonwater activities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19121887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Cumulative+Effects+of+Land+Management+on+Soil+and+Water+Resources%3A+An+Overview&rft.au=Sidle%2C+R+C%3BSharpley%2C+AN&rft.aulast=Sidle&rft.aufirst=R&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Probability of Sediment Yields from Surface Erosion on Granitic Roadfills in Idaho AN - 19107223; 9109333 AB - A series of 29 bordered plots, 1.8 m wide by 4.6 m long, was used to measure sediment yields from granitic roadfills on forest roads in the mountains of Idaho. Slope gradients on the plots ranged from 34 to 41 deg. Sediment yield data for the snowfree season were collected for 3 yr following road construction. Various site factors were tested by regression analysis for their effects on sediment yield, but only ground cover density and snowfree period rainfall erosivity were statistically significant. Analysis of 22 yr of snowfree period rainfall erosivity data showed that erosivity was log-normal distributed, and established the parameters for the probability density function. These data, coupled with the prediction equation from the regression model, were used in a Monte Carlo simulation model to define the probability of occurrence of sediment yields from granitic roadfills, given various levels of ground cover density. A prediction equation based on ground cover density and the snow free period erosivity index explained 55% of the variance in sediment yields. Recently published studies that update the slope gradient and slope length components of the Universal Soil Loss Equation were then used to extrapolate the results of the present study to all lengths and gradients of granitic roadfills. Roads associated with forest management activities were found to be the primary cause for serious downstream cumulative effects of sedimentation in the Idaho Batholith. Erosion control treatments such as the application of mulches, must accomplish site protection during the high erosion period before vegetation has had a chance to become established. (Doyle-PTT) JF - Journal of Environmental Quality JEVQAA, Vol. 20, No. 1, p 53-60 , January/March 1991. 2 fig, 2 tab, 32 ref. AU - Megahan, W F AU - Monsen, S B AU - Wilson, MD AD - Intermountain Research Station, Forest Service, USDA, 316 East Myrtle Street, Boise, ID 83702 Y1 - 1991/01// PY - 1991 DA - Jan 1991 KW - Water Resources Abstracts KW - Environmental effects KW - Erosion control KW - Idaho KW - Model studies KW - Roads KW - Sediment erosion KW - Sediment yield KW - Erosion KW - Road construction KW - Rock fill KW - Runoff KW - Sediment control KW - Simulation models KW - Statistical analysis KW - Stream degradation KW - SW 2060:Effects on water of human nonwater activities KW - SW 0870:Erosion and sedimentation KW - SW 2080:Watershed protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19107223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Probability+of+Sediment+Yields+from+Surface+Erosion+on+Granitic+Roadfills+in+Idaho&rft.au=Megahan%2C+W+F%3BMonsen%2C+S+B%3BWilson%2C+MD&rft.aulast=Megahan&rft.aufirst=W&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 ER - TY - CONF T1 - Outdoor recreation and global climate change: Resource management implications for behaviors, planning, and management AN - 16959127; 3809631 AB - Global climate change is of great concern for a substantial portion of the earth's population. A growing body of evidence suggests that global climate changes will affect future outdoor recreation opportunities and patterns of behavior. These changes will influence both the site and the user of the outdoor environment. This paper provides an overview of how global climate changes may affect outdoor recreation and potential strategies for dealing with these changes. JF - Society and Natural Resources AU - Ewert, A W Y1 - 1991 PY - 1991 DA - 1991 SP - 365 EP - 377 VL - 4 IS - 4 KW - Pollution Abstracts KW - recreation areas KW - environment management KW - resource management KW - climatic changes KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16959127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Society+and+Natural+Resources&rft.atitle=Outdoor+recreation+and+global+climate+change%3A+Resource+management+implications+for+behaviors%2C+planning%2C+and+management&rft.au=Ewert%2C+A+W&rft.aulast=Ewert&rft.aufirst=A&rft.date=1991-01-01&rft.volume=4&rft.issue=4&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Society+and+Natural+Resources&rft.issn=08941920&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Nitrogen effects on soil water extraction by tall fescue in northern Appalachia AN - 16812829; 3758704 AB - In the Appalachian region of the northeastern United States, droughty conditions in hill-land soils can cause moisture stress in and reduce yields of pasture grasses. The effect of N fertilization of tall fescue (Festuca arundinacea Schreb.) on the water extraction from shale soils commonly found in hill-land pastures in the Northeast was investigated. Tall fescue was grown on three shale-derived soils with total available water-holding capacities of 25.3, 14.4, and 4.9 cm. Nitrogen was applied at the rate of 0, 90, and 180 kg/ha of N in a split application (50% in the spring and 50% after the first harvest). Nitrogen fertilization increased soil water extraction by tall fescue only at soil water storage capacities of 250 mm or more of available water. On soils with less than 250 mm of available water storage capacity, tall fescue was able to exploit the soil water reserves with native amounts of N, but above-ground biomass and water use efficiency was improved with N fertilization. (DBO) JF - Journal of Soil and Water Conservation AU - Stout, W L AU - Shaffer, JA AU - Jung, G A AU - Staley, TE AU - Hill, RR Jr AD - U.S. Reg. Pasture Res. Lab., ARS-USDA, Univ. Park, PA 16802, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 150 EP - 152 VL - 46 IS - 2 SN - 0022-4561, 0022-4561 KW - effects on KW - nitrogen KW - USA, Appalachian Region KW - Ecology Abstracts KW - water KW - Festuca arundinacea KW - extraction KW - soil KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16812829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=Nitrogen+effects+on+soil+water+extraction+by+tall+fescue+in+northern+Appalachia&rft.au=Stout%2C+W+L%3BShaffer%2C+JA%3BJung%2C+G+A%3BStaley%2C+TE%3BHill%2C+RR+Jr&rft.aulast=Stout&rft.aufirst=W&rft.date=1991-01-01&rft.volume=46&rft.issue=2&rft.spage=150&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Festuca arundinacea; soil; water; extraction ER - TY - JOUR T1 - Detection of antibiotic and sulfonamide residues in bob veal calf tissues: 967 Cases (1987-1988) AN - 16801493; 3548803 AB - The data an antimicrobials in bob veal calves obtained by USDA-Food Safety Inspection Service (FSIS) during the fiscal year 1988 were reviewed. Of 3,095 calf antibiotic and sulfonamide test (cast)-positive carcass submissions, 967 were chosen by FSIS for antimicrobial residue analyses. Specimens of muscle, liver, and kidney were obtained at abattoirs as a part of the FSIS program, and the results were reviewed by calf submission. At least 1 tissue from each of 425 submissions contained neomycin. Unidentified microbial inhibitors were found in 291 submissions. Streptomycin was found in 86 carcass submissions, penicillin in 81, sulfamethazine in 73, tetracycline HCl in 59, and gentamicin in 53. Other monitored agents were found in < 50 submissions each. Only 257 submissions included evaluation for sulfonamides, but sulfamethazine was found in 28.4% of them. Chloramphenicol was not detected. JF - Journal of the American Veterinary Medical Association AU - Wilson, D J AU - Norman, B B AU - Franti, CE AD - U.S. Meat Anim. Res. Cent., USDA/ARS, P.O. Box 166, Clay Center, NE 68933, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 759 EP - 766 VL - 199 IS - 6 SN - 0003-1488, 0003-1488 KW - antibiotics KW - sulfonamides KW - cattle KW - Toxicology Abstracts KW - residues KW - meat KW - X 24120:Food, additives & contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16801493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Veterinary+Medical+Association&rft.atitle=Detection+of+antibiotic+and+sulfonamide+residues+in+bob+veal+calf+tissues%3A+967+Cases+%281987-1988%29&rft.au=Wilson%2C+D+J%3BNorman%2C+B+B%3BFranti%2C+CE&rft.aulast=Wilson&rft.aufirst=D&rft.date=1991-01-01&rft.volume=199&rft.issue=6&rft.spage=759&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Veterinary+Medical+Association&rft.issn=00031488&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - residues; meat ER - TY - JOUR T1 - Light requirements for growth of monoecious hydrilla from the Potomac River AN - 16750054; 3523996 AB - Estimates from laboratory and aquarium studies were obtained of light compensation levels for the race of monoecious hydrilla [Hydrilla verticillata (L.f.) Royle] established in the Potomac River and of the effects of reduced light levels on plant growth and development. Results of this investigation indicate that hydrilla growth is retarded at Photosynthetically Active Radiation (PAR) levels below 100 mu e/m super(2)/sec. This is approximately equivalent to Secchi disc transparency, which is 5% of incident solar PAR. Results suggest that depth and areal distribution of hydrilla in the Potomac River will be restricted to the limnetic zone. Growth should not occur below 1% of incident solar PAR, and probably will not occur below the 5% level. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manage. Lab., Agric. Res. Serv., USDA, 3205 College Ave., Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 204 EP - 214 VL - 54 IS - 3-4 SN - 0098-4590, 0098-4590 KW - range extension KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - light effects KW - USA, Potomac R. KW - aquatic plants KW - USA, Virginia KW - Freshwater KW - Hydrilla verticillata KW - light penetration KW - growth KW - D 04640:Other angiosperms KW - Q1 08221:General KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16750054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Light+requirements+for+growth+of+monoecious+hydrilla+from+the+Potomac+River&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=3-4&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - light effects; aquatic plants; growth; light penetration; range extension; Hydrilla verticillata; USA, Potomac R.; USA, Virginia; Freshwater ER - TY - JOUR T1 - Growth of various hydrilla races in waters of differing pH AN - 16749482; 3523060 AB - Fifteen races of hydrilla [Hydrilla verticillata (L.f.) Royle], collected throughout its geographical range, were grown for 5 weeks in natural water with the pH adjusted to 5, 7 and 9. Growth varied between as well as within races in response to individual pH. The largest growth increase occurred within the pH 7 treatment. A 700% difference occurred among races between the high and low ends of the response range. Growth response varied 5-fold between races at pH 5 and pH 9. Maximum growth of each race occurred at pH 7. Next best growth occurred at pH 5 with inhibition occurring in only 2 of 15 races. Reduced growth in 10 of 15 races at pH 9 may have been related to reduced free carbon dioxide supplies. Because growth was not completely inhibited is evidence that bicarbonate utilization mitigated the effects of limited availability of free carbon dioxide. Plants from the highly productive Queensland and Bangalore races exhibited a high tolerance for diverse pH. This indicates an ability to adapt, to colonize diverse habitats and to become more serious pests than races already established in the U.S. JF - Florida Scientist AU - Steward, K K AD - ARS-USDA, Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 117 EP - 125 VL - 54 IS - 2 SN - 0098-4590, 0098-4590 KW - freshwater weeds KW - races KW - water pH KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - aquatic plants KW - Freshwater KW - introduced species KW - Hydrilla verticillata KW - subpopulations KW - tolerance KW - pH effects KW - growth KW - Q1 08443:Population genetics KW - D 04640:Other angiosperms KW - Q1 08226:Physiology, biochemistry, biophysics KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16749482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Growth+of+various+hydrilla+races+in+waters+of+differing+pH&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=2&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - subpopulations; tolerance; aquatic plants; pH effects; introduced species; freshwater weeds; growth; water pH; races; Hydrilla verticillata; Freshwater ER - TY - JOUR T1 - Effects on plant growth of the HMG-CoA synthase inhibitor, 1233A/F-244/L-659,699, isolated from Scopulariopsis candidus AN - 16734644; 3517701 AB - While examining microorganisms for biologically active natural products, we isolated Scopulariopsis candidus (Accession No. UK 159 RRC) from sunflower seeds. Upon solid fermentation, this organism yielded the beta -lactone, (E,E)-11-[3'-(hydroxymethyl) 4'-oxo-2'-oxetanyl] 3,5,7-trimethyl-2,4-undecanoic acid, in a large quantity. This compound was originally obtained from an apparent Cephalosporium sp. and designated Antibiotic 1233A. Later, the same compound was isolated from an unspecified Scopulariopsis and from a Fusarium sp. Our report describes the effects of this metabolite and its synthetic tetrahydro derivative on the growth of plants and microorganisms. JF - Agricultural and Biological Chemistry AU - Jacyno, J M AU - Cutler, H G AU - Roberts, R G AU - Waters, R M AD - USDA-ARS, Richard B. Russell Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 3129 EP - 3131 VL - 55 IS - 12 SN - 0916-8451, 0916-8451 KW - HMG-CoA synthase KW - 1233A/F-244/L-659,699 KW - Scopulariopsis candidus KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - inhibitors KW - A 01014:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16734644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Effects+on+plant+growth+of+the+HMG-CoA+synthase+inhibitor%2C+1233A%2FF-244%2FL-659%2C699%2C+isolated+from+Scopulariopsis+candidus&rft.au=Jacyno%2C+J+M%3BCutler%2C+H+G%3BRoberts%2C+R+G%3BWaters%2C+R+M&rft.aulast=Jacyno&rft.aufirst=J&rft.date=1991-01-01&rft.volume=55&rft.issue=12&rft.spage=3129&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=09168451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - inhibitors ER - TY - JOUR T1 - Competitive interaction between monoecious hydrilla and American eelgrass on sediments of varying fertility AN - 16703639; 3533995 AB - Monoecious hydrilla [Hydrilla verticillata (L.f.) Royle] from the Potomac River and American eelgrass (Vallisneria americana Michx.) were grown in monoculture and in mixed culture on aquatic sediments of decreasing fertility to assess their ability to compete for nutrients. Biomass yield in hydrilla decreased with decreasing fertility and increased an average of 45% when grown intermixed with eelgrass. This was interpreted as evidence of within species competition. Biomass yield only decreased in eelgrass when grown on sand, evidence of lower nutrient requirements than hydrilla. Sediment fertility had little effect on nutrient concentrations in tissues, except that concentrations were depressed when plants were grown on sand alone. Reduced growth of hydrilla was not related to tissue concentrations of measured nutrients. Nutrient accumulation in plant tissues was most closely related to dry weight and was greatest in hydrilla. Potassium accumulation in plant tissues exceeded supplies in sediments indicating potassium uptake occurred from ambient water. Sediment potassium concentrations were increased by plant growth in some sediment treatments. JF - Florida Scientist AU - Steward, K K AD - Aquat. Plant Manage. Lab., ARS-USDA, Ft. Lauderdale, FL 33314, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 135 EP - 147 VL - 54 IS - 3-4 SN - 0098-4590, 0098-4590 KW - nutrient availability KW - nutrients (mineral) KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - biomass KW - aquatic plants KW - Freshwater KW - sediment chemistry KW - Hydrilla verticillata KW - USA KW - interspecific relationships KW - Vallisneria americana KW - competition KW - Q1 08483:Species interactions: general KW - D 04640:Other angiosperms KW - Q1 08221:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16703639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Florida+Scientist&rft.atitle=Competitive+interaction+between+monoecious+hydrilla+and+American+eelgrass+on+sediments+of+varying+fertility&rft.au=Steward%2C+K+K&rft.aulast=Steward&rft.aufirst=K&rft.date=1991-01-01&rft.volume=54&rft.issue=3-4&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Florida+Scientist&rft.issn=00984590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - interspecific relationships; biomass; aquatic plants; nutrients (mineral); sediment chemistry; competition; nutrient availability; Vallisneria americana; Hydrilla verticillata; USA; Freshwater ER - TY - JOUR T1 - Biological activity of (-)-harzianopyridone isolated from Trichoderma harzianum AN - 16703258; 3534296 AB - We report some of the biological properties of a laevorotatory sample, of unknown optical purity, of harzianopyridone. JF - Agricultural and Biological Chemistry AU - Cutler, H G AU - Jacyno, J M AD - USDA-ARS, Richard B. Russell Res. Cent., Athens, GA 30613, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 2629 EP - 2631 VL - 55 IS - 10 SN - 0916-8451, 0916-8451 KW - harzianopyridone KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - isolation KW - Trichoderma harzianum KW - biological activity KW - A 01014:Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16703258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Biological+Chemistry&rft.atitle=Biological+activity+of+%28-%29-harzianopyridone+isolated+from+Trichoderma+harzianum&rft.au=Cutler%2C+H+G%3BJacyno%2C+J+M&rft.aulast=Cutler&rft.aufirst=H&rft.date=1991-01-01&rft.volume=55&rft.issue=10&rft.spage=2629&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Biological+Chemistry&rft.issn=09168451&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Trichoderma harzianum; biological activity; isolation ER - TY - JOUR T1 - Artificial watershed acidification on the Fernow Experimental Forest. AN - 16662340; 3020302 AB - An artificial watershed acidification study was initiated on the Fernow Experimental Forest in December 1987. Acidification was induced by aerially applying ammonium sulfate fertilizer three times per year to a 34-ha watershed at an annual rate approximately double ambient nitrogen and sulfur inputs. A second watershed was maintained as a control. Stream water chemistry, principally during storms, and soil leachate chemistry have been monitored intensively to determine if acidification could be induced and to examine some of the biogeochemical factors involved in the acidification process. One year of pre-treatment data were collected for most parameters, and seven fertilizer applications have been made to date. Substantial information about stream chemistry responses during storms has been compiled, though stream chemistry has not been altered by the treatment. However, sulfate and nitrate concentrations in A-horizon leachate have increased since late 1989 on the treated watershed. No changes in leachate from lower horizons have been documented, probably because the B- and C-horizons are adsorbing excess anions effectively. JF - Proceedings of the West Virginia Academy of Science AU - Edwards, P J AU - Kochenderfer, J N AD - USDA Forest Serv., Northeastern Forest Exp. Stn., Timber and Watershed Lab., Parsons, WV 26287, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 72 EP - 81 VL - 63 IS - 2-4 KW - USA, West Virginia, Fernow Exp. Forest KW - soils KW - stream water chemistry KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Ecology Abstracts KW - forests KW - fertilizers KW - watersheds KW - Freshwater KW - USA KW - acidification KW - storms KW - leaching KW - Q5 08503:Characteristics, behavior and fate KW - D 04803:Pollution effects KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16662340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+West+Virginia+Academy+of+Science&rft.atitle=Artificial+watershed+acidification+on+the+Fernow+Experimental+Forest.&rft.au=Edwards%2C+P+J%3BKochenderfer%2C+J+N&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=63&rft.issue=2-4&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+West+Virginia+Academy+of+Science&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - forests; soils; fertilizers; watersheds; acidification; storms; leaching; USA; Freshwater ER - TY - CONF T1 - Enhancing sport fish production in seepage lakes of the Ocala National Forest in central Florida. AN - 16658780; 3017363 AB - The Ocala National Forest contains more than 600 lakes that cover approximately 18,000 acres. Most of these water bodies are seepage lakes that are very acid, poorly buffered, and therefore very low in productivity. In 1983, 40 of 59 lakes sampled on this forest were found to be oligatrophic. Evidence suggests that these lakes had recently acidified, and that acidic deposition was a possible cause. Agricultural lime was applied experimentally by three different methods to determine the potential of this fishery management practice to mitigate acidification. Significant improvement in water quality (pH, alkalinity, and conductivity) were observed following all three application methods. Largemouth bass (Micropterus salmoides ) average weight and biomass, as catch per unit effort, also increased significantly following two of the three lime application methods. Exceptional growth of largemouth bass was observed in the small seepage lake treated with both lime and fertilizer. JF - USDA FOREST SERV., WASHINGTON, DC (USA). 1991. AU - Grinstead, B G AU - Ebaugh, W P AU - Waite, W R AU - Watkins, CE AU - Cooper, J L AU - Hamre, R H Y1 - 1991 PY - 1991 DA - 1991 PB - USDA FOREST SERV., WASHINGTON, DC (USA) KW - USA, Florida, Ocala Natl. Forest KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - RM-207 KW - limestone KW - Micropterus salmoides KW - fish culture KW - biological production KW - game fish KW - Freshwater KW - habitat improvement (chemical) KW - Q3 08582:Fish culture KW - Q1 08582:Fish culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16658780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Enhancing+sport+fish+production+in+seepage+lakes+of+the+Ocala+National+Forest+in+central+Florida.&rft.au=Grinstead%2C+B+G%3BEbaugh%2C+W+P%3BWaite%2C+W+R%3BWatkins%2C+CE%3BCooper%2C+J+L%3BHamre%2C+R+H&rft.aulast=Grinstead&rft.aufirst=B&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Inheritance of resistance to race 4 of downy mildew derived from interspecific crosses in sunflower. AN - 16653134; 3039290 AB - Race 4 of downy mildew, incited by Plasmopara halstedii (Farl.) Berl. & de Toni, was first reported in sunflower (Helianthus annuus L.) in the USA during 1985. Resistance to this race was found in lines derived from interspecific crosses of cultivated sunflower with three species of wild sunflower. The objectives of this investigation were to determine the genetic control of resistance found in the interspecific crosses and to determine if this resistance was conditioned by the same or different genes. Ratios tested utilizing a chi-square analysis for goodness of fit for F sub(2) and BC sub(1)F sub(1) generations indicated that resistance to Race 4 was conditioned by a single, dominant gene in all sources. Four lines (HA 335, HA 336, Charata R4, and Wild Ornamental) were determined to have the same resistance gene Pl super(6). HA 335 and HA 336 were derived from wild H. annuus) 423 and H. annuus 432, respectively. The resistance gene in HA 339, derived from H. praecox Engelm. & Gray ssp. runyonii , proved to be different and was designated Pl super(7). The resistance gene in RHA 340, distinct from Pl super(6) and Pl super(7) and derived from H. argophyllus) Torrey & Gray, was designated Pl super(8). Using divergent resistance genes in sunflower commercial hybrids should decrease genetic vulnerability to changes in pathogenicity of downy mildew. However, additional wild species of sunflower should be collected and tested to identify new sources of resistance to downy mildew. JF - Crop Science AU - Miller, J F AU - Gulya, T J AD - USDA-ARS Oilseeds Res. Unit, Dep. Crop Weed Sci. ND State Univ., Fargo, ND 58105, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 40 EP - 43 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - genes KW - cross-breeding KW - inheritance KW - Plasmopara halstedii KW - resistance KW - Helianthus annuus KW - A 01028:Others KW - G 07352:Dicotyledons (miscellaneous) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16653134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Inheritance+of+resistance+to+race+4+of+downy+mildew+derived+from+interspecific+crosses+in+sunflower.&rft.au=Miller%2C+J+F%3BGulya%2C+T+J&rft.aulast=Miller&rft.aufirst=J&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Plasmopara halstedii; Helianthus annuus; resistance; inheritance; genes; cross-breeding ER - TY - JOUR T1 - Enzymatic conversion of beta -carotene into beta -apocarotenals and retinoids by human monkey, ferret, and rat tissues. AN - 16637690; 2940603 AB - Whether the conversion of beta -carotene into retinoids involves an enzymatic excentric cleavage mechanism was examined in vitro with homogenates prepared from human, monkey, ferret, and rat tissue. Using high-performance liquid chromatography, significant amounts of beta -apo-12'-, -10'-, and -8'-carotenals, retinal, and retinoic acid were found after incubation of intestinal homogenates of the four different species with beta -carotene in the presence of NAD super(+) and dithiothreitol. No beta -apo-carotenals or retinoids were detected in control incubations done without tissue homogenates. (DBO) JF - Archives of Biochemistry and Biophysics AU - Wang, Xiang-Dong AU - Tang, Guang-Wen AU - Fox, J G AU - Krinsky, NI AU - Russell, R M AD - USDA Hum. Nutr. Res. Cent., 711 Washington St., Boston, MA 02111, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 8 EP - 16 VL - 285 IS - 1 SN - 0003-9861, 0003-9861 KW - Mustela putorius KW - beta -apocarotenals KW - carotene KW - conversion KW - man KW - mechanisms KW - monkeys KW - pathways KW - rats KW - retinoids KW - Biochemistry Abstracts 3: Amino Acids, Peptides & Proteins (till 1993); Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16637690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Biochemistry+and+Biophysics&rft.atitle=Enzymatic+conversion+of+beta+-carotene+into+beta+-apocarotenals+and+retinoids+by+human+monkey%2C+ferret%2C+and+rat+tissues.&rft.au=Wang%2C+Xiang-Dong%3BTang%2C+Guang-Wen%3BFox%2C+J+G%3BKrinsky%2C+NI%3BRussell%2C+R+M&rft.aulast=Wang&rft.aufirst=Xiang-Dong&rft.date=1991-01-01&rft.volume=285&rft.issue=1&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Archives+of+Biochemistry+and+Biophysics&rft.issn=00039861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 ER - TY - CONF T1 - Innovative techniques for warmwater stream management. AN - 16602706; 3017288 AB - The southern United States contains thousands of kilometers of warmwater streams, a minority of these are actively managed. Past survey strategies for these streams primarily considered water quality and quantity, instream and riparian habitat, and fish and aquatic populations independently, without considering the relationship of one to the other. Beginning in the mid-1980's a shift to a more holistic management philosophy evolved as fisheries biologists began to implement western stream survey methodologies with southern modifications to entire watershed basins. Basin-wide survey and stream monitoring procedures have recently been developed to evaluate warmwater stream fisheries in several southern states. Case studies on several warmwater streams are reported to give some idea of the scale of projects currently under management. JF - USDA FOREST SERV., WASHINGTON, DC (USA). 1991. AU - Ebert, D J AU - Filipek, S P AU - Seehorn, ME AU - Cooper, J L AU - Hamre, R H Y1 - 1991 PY - 1991 DA - 1991 PB - USDA FOREST SERV., WASHINGTON, DC (USA) KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts KW - RM-207 KW - USA KW - ecosystem management KW - fishery management KW - Freshwater KW - environmental surveys KW - methodology KW - river fisheries KW - Q3 08581:Aquaculture: General KW - Q1 08581:General KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16602706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Innovative+techniques+for+warmwater+stream+management.&rft.au=Ebert%2C+D+J%3BFilipek%2C+S+P%3BSeehorn%2C+ME%3BCooper%2C+J+L%3BHamre%2C+R+H&rft.aulast=Ebert&rft.aufirst=D&rft.date=1991-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 ER - TY - JOUR T1 - Insert copy number, chromosome number, pollen stainability, and crossability of Agrobacterium -transformed diploid potato. AN - 16591690; 3023506 AB - Two 2n-pollen producing cultivated diploid, 2n=24, potato genotypes DM56.4 and US-W5337.3 were inoculated with binary Agrobacterium vectors. The T-DNA contained a neomycin phosphotransferase II coding region fused to a nopaline synthase promoter providing gene expression in plants and resistance to kanamycin. A total of 28 clones regenerated as adventitious shoots from callus tissue, growing on medium with kanamycin, was analyzed for chromosome number, pollen stainability, and crossability. Several clones were tested and found to retain crossability with diploid and tetraploid clones. Nine out of 10 of the regenerants from DM56.4 had been doubled; seven of these were tetraploids with 2n=48, one clone had 2n=49, and another 2n=46. Five of 14 regenerants of US-W5337.3 had been doubled, and three of these had fewer than 2n=48. Pollen stainability revealed that the tetraploid regenerants from DM56.4 were male sterile, whereas tetraploids from US-W5337.3 had stainable pollen. All of the diploid regenerants produced 2n pollen. Crossability of several diploid and tetraploid regenerants was high. The number of T-DNA inserts revealed by Southern blot analysis was also determined. Six, 10, and 9 regenerants had 1, 2, and 3 inserts of T-DNA, respectively. There were single regenerants each with 5, 6, or 7 inserts. Selection for higher insert number among regenerants should be feasible based on the range of insert number found. Identical restriction patterns within three groups of clones indicated that the 28 clones analyzed emerged from only 21 cells derived from independent transformation events. The variability in chromosome number and pollen stainability suggests that variation in other traits would be obtainable. JF - American Potato Journal AU - Brown, C R AU - Yang, C-P AU - Kwiatkowski, S AU - Adiwilaga, K D AD - ARS, USDA, and Washington State Univ. Agric. Res. Cent., Prosser, WA 99350, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 317 EP - 330 VL - 68 IS - 5 SN - 0003-0589, 0003-0589 KW - Microbiology Abstracts B: Bacteriology KW - Agrobacterium KW - cross-pollination KW - pollen KW - staining KW - diploids KW - karyotypes KW - Solanum tuberosum KW - copy number control KW - transformation KW - J 02901:Soil and plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16591690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Potato+Journal&rft.atitle=Insert+copy+number%2C+chromosome+number%2C+pollen+stainability%2C+and+crossability+of+Agrobacterium+-transformed+diploid+potato.&rft.au=Brown%2C+C+R%3BYang%2C+C-P%3BKwiatkowski%2C+S%3BAdiwilaga%2C+K+D&rft.aulast=Brown&rft.aufirst=C&rft.date=1991-01-01&rft.volume=68&rft.issue=5&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=American+Potato+Journal&rft.issn=00030589&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Solanum tuberosum; Agrobacterium; diploids; transformation; cross-pollination; copy number control; karyotypes; pollen; staining ER - TY - JOUR T1 - Positive identification of a lambda gt11 clone containing a region of fungal phytase gene by immunoprobe and sequence verification. AN - 16520807; 2960342 AB - As the initial step in a project to provide a more cost-effective source of the phytase enzyme, this paper reports on the use of a polyclonal antibody raised to phytase purified from an isolate of Aspergillus niger (A. ficuum) to screen an A. niger lambda gt11 expression library and the use of amino acid sequencing to identify a clone containing part of the fungal phytase gene. The described use of amino acid sequence fragments to verify the cloning of a gene has potential applications in other cloning projects. JF - Applied Microbiology and Biotechnology AU - Mullaney, E J AU - Gibson, D M AU - Ullah, AHJ AD - USDA, ARS, South. Reg. Res. Cent., 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 611 EP - 614 VL - 35 IS - 5 SN - 0175-7598, 0175-7598 KW - gene KW - phytase KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - identification KW - amino acid sequence KW - Aspergillus niger KW - K 03079:Fungi KW - W3 33310:Enzymes and cofactors KW - K 03020:Fungi KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16520807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Positive+identification+of+a+lambda+gt11+clone+containing+a+region+of+fungal+phytase+gene+by+immunoprobe+and+sequence+verification.&rft.au=Mullaney%2C+E+J%3BGibson%2C+D+M%3BUllah%2C+AHJ&rft.aulast=Mullaney&rft.aufirst=E&rft.date=1991-01-01&rft.volume=35&rft.issue=5&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - amino acid sequence; identification; Aspergillus niger ER - TY - JOUR T1 - Effects of global climatic change on forests in northwestern North America. AN - 16485331; 2938551 AB - The probable effects of some potential changes in regional climate are explored for the coniferous forests of the Pacific Northwest. The authors predict patterns of vegetational shifts, based on the output from computer simulations and from paleobotanical data on change during the Holocene (when climate was similar to that predicted for the near future). Conclusions are drawn about the responses of established forests in dry versus moist habitats, northern versus southern latitudes, and interior versus coastal environments. An emphasis is made on management needs required to save biodiversity in the region. JF - NORTHWEST ENVIRON. J. AU - Franklin, J F AU - Swanson, F J AU - Harmon, ME AU - Perry, DA AU - Spies, T A AU - Dale, V H AU - McKee, A AU - Ferrell, W K AU - Means, JE AD - USDA For. Serv., Pac. Northwest Res. Stn., Coll. For. Resour., Univ. Washington, Seattle, WA 98195, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 233 EP - 254 VL - 7 IS - 2 KW - effects on KW - Pollution Abstracts; Ecology Abstracts KW - forests KW - USA, Pacific Northwest KW - climatic changes KW - resource management KW - global warming KW - P 5000:LAND POLLUTION KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16485331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NORTHWEST+ENVIRON.+J.&rft.atitle=Effects+of+global+climatic+change+on+forests+in+northwestern+North+America.&rft.au=Franklin%2C+J+F%3BSwanson%2C+F+J%3BHarmon%2C+ME%3BPerry%2C+DA%3BSpies%2C+T+A%3BDale%2C+V+H%3BMcKee%2C+A%3BFerrell%2C+W+K%3BMeans%2C+JE&rft.aulast=Franklin&rft.aufirst=J&rft.date=1991-01-01&rft.volume=7&rft.issue=2&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=NORTHWEST+ENVIRON.+J.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - USA, Pacific Northwest; global warming; climatic changes; forests; resource management ER - TY - JOUR T1 - Non-random mating between Boophilus microplus and hybrids of B. microplus females and B. annulatus males, and its possible effect on sterile male hybrid control releases. AN - 16461487; 2924519 AB - When Boophilus microplus and Type-II hybrids (B. microplus females x B. annulatus males) were released simultaneously onto bovine hosts, mating between the two forms appeared not to be at random. There were more contypic and fewer intertypic matings than predicted under an assumption of panmixia. An examination of the patterns of matings revealed that more of the matings on the first two days of detachment were between the two sexes of B. microplus . Engorged females dropping on the last four days of maximum female detachment were predominantly hybrids mated to both B. microplus and hybrid males. The non-random mating pattern does not appear to be caused by assortative mating between B. microplus and Type-II hybrids, but because the B. microplus were competent to mate two days before the hybrids and the B. microplus males compete for males of both types better than the Type-II males. JF - Experimental and Applied Acarology AU - Hilburn, L R AU - Davey, R B AU - George, JE AU - Mathews Pound, J AD - Knipling-Bushland U.S. Livest. Insects Res. Lab., USDA-ARS, Kerrville, TX 78029-0232, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 23 EP - 36 VL - 11 IS - 1 SN - 0168-8162, 0168-8162 KW - non-random mating KW - Biotechnology and Bioengineering Abstracts; Animal Behavior Abstracts; Entomology Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Boophilus annulatus KW - hybrids KW - pest control KW - Boophilus microplus KW - Ixodidae KW - sterile-release KW - interference KW - Acari KW - mating KW - interspecific hybridization KW - Y 25422:Invertebrates (excluding insects) KW - Y 25882:Invertebrates (excluding insects) KW - Z 05206:Medical & veterinary entomology KW - W2 32445:Pest control KW - W 30965:Miscellaneous, Reviews KW - Z 05192:Reproductive behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16461487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experimental+and+Applied+Acarology&rft.atitle=Non-random+mating+between+Boophilus+microplus+and+hybrids+of+B.+microplus+females+and+B.+annulatus+males%2C+and+its+possible+effect+on+sterile+male+hybrid+control+releases.&rft.au=Hilburn%2C+L+R%3BDavey%2C+R+B%3BGeorge%2C+JE%3BMathews+Pound%2C+J&rft.aulast=Hilburn&rft.aufirst=L&rft.date=1991-01-01&rft.volume=11&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Experimental+and+Applied+Acarology&rft.issn=01688162&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - hybrids; pest control; sterile-release; interference; mating; interspecific hybridization; Boophilus annulatus; Boophilus microplus; Ixodidae; Acari ER - TY - JOUR T1 - Environmental gradients affect forest composition in the Luquillo Mountains of Puerto Rico. AN - 16412015; 2891887 AB - Twenty-five groups of 2 plots stratified by topography (ridge, slope and valley) were established at 50-m elevational increments between 620 and 970 m elevation in the Colorado forest of the Luquillo Mountains in Puerto Rico. Reciprocal averaging ordinations of the sample plot data produced groupings by topography, aspect and elevation. Reciprocal averaging also indicated environmental preferences for 39 tree species in a complex, montane habitat. Direct gradient analyses of 20 common tree species also showed topographic, aspectual and elevational preferences within the mountains. JF - Interciencia. Caracas AU - Weaver, P L AD - Inst. Trop. For., Southern Forest Exp. Stn., USDA For. Serv., Call Box 25000, Rio Piedras, PR 00928, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 142 EP - 151 VL - 16 IS - 3 SN - 0378-1844, 0378-1844 KW - effects on KW - Puerto Rico, Luquillo Mts. KW - Ecology Abstracts KW - tropical environment KW - species composition KW - environmental conditions KW - rain forests KW - gradients KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16412015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Interciencia.+Caracas&rft.atitle=Environmental+gradients+affect+forest+composition+in+the+Luquillo+Mountains+of+Puerto+Rico.&rft.au=Weaver%2C+P+L&rft.aulast=Weaver&rft.aufirst=P&rft.date=1991-01-01&rft.volume=16&rft.issue=3&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Interciencia.+Caracas&rft.issn=03781844&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2012-02-28 N1 - SubjectsTermNotLitGenreText - tropical environment; rain forests; environmental conditions; gradients; species composition ER - TY - JOUR T1 - WEPP. Soil erodibility experiments for rangeland and cropland soils. AN - 16406644; 2884137 AB - The Water Erosion Prediction Project (WEPP) combines knowledge of soil erosion processes with other important processes in a simulation model to predict soil erosion by water. WEPP models soil erosion as a process of rill and interrill detachment and transport. This is much different than the universal soil loss equation (USLE), in which the factors understood to affect soil erosion were quantified in an empirical technology. Because WEPP deals with soil erosion prediction in a different manner than the USLE, new soil erodibility parameters are required. This was identified early in the project as a critical component for the successful development of the WEPP technology. JF - Journal of Soil and Water Conservation AU - Laflen, J M AU - Elliot, W J AU - Simanton, J R AU - Holzhey, C S AU - Kohl, K D AD - Natl. Soil Erosion Res. Lab., Agric. Res. Serv., USDA, West Lafayette, IN 47907, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 39 EP - 44 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - erosion control KW - soils KW - Pollution Abstracts; Health & Safety Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - agriculture KW - mathematical models KW - soil erosion KW - land use KW - Q2 09123:Conservation KW - P 5000:LAND POLLUTION KW - H SE6.28:LANDSLIDES AND EROSION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16406644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=WEPP.+Soil+erodibility+experiments+for+rangeland+and+cropland+soils.&rft.au=Laflen%2C+J+M%3BElliot%2C+W+J%3BSimanton%2C+J+R%3BHolzhey%2C+C+S%3BKohl%2C+K+D&rft.aulast=Laflen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; erosion; erosion control; agriculture; mathematical models; soil erosion; land use ER - TY - JOUR T1 - Potassium and aldicarb-disulfoton effects on Verticillium wilt, yield, and quality of cotton. AN - 16396053; 2882934 AB - Optimum cotton (Gossypium hirsutum L.) yield with good fiber quality requires healthy vigorous plants throughout the season. Recently, verticillium wilt (Verticillium dahliae Kleb.) and K deficiency symptoms occurred during August and September in cotton grown on sandy loam soils of the Mississippi Delta. Symptoms developed earlier and faster in some cultivars compared with others. In a field study, applications of K and pesticides on verticillium wilt-K deficiency symptoms, yield and fiber quality of "DES 119" and "Stoneville 825" cottons were evaluated. Broadcast application and topsoil incorporation of 112 kg K ha super(-1) yr super(-1) reduced verticillium wilt-K deficiency symptoms from 12 to 7%, averaged across both cultivars, but did not affect lint yield. The root-gall (caused by Meloidogyne incognita (Kofoid & White) Chitwood) index was reduced from 2.7 to 2.5 and from 2.7 to 2.4 by K and aldicarb-PCNB-ETMT (5% 2-methyl-2-(methylthio)propionaldehyde-O-(methylcarbamoyl)oxime + 10% pentachloronitrobenzene + 2.5% 5-ethoxy-3-(trichloromethyl)-1,2,4-thiodiazole; 0.56 + 1.12 + 0.28 kg a.i. ha super(-1)), respectively. JF - Crop Science AU - Minton, E B AU - Ebelhar, M W AD - USDA-ARS, Cotton Physiol. and Genet. Res. Unit, Stoneville, MS 38776, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 209 EP - 212 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - potassium KW - aldicarb KW - disulfoton KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - wilt KW - yield KW - quality KW - Verticillium dahliae KW - Gossypium KW - A 01028:Others KW - K 03089:Fungi: plant KW - A 01031:Antifungal & fungicidal agents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16396053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Potassium+and+aldicarb-disulfoton+effects+on+Verticillium+wilt%2C+yield%2C+and+quality+of+cotton.&rft.au=Minton%2C+E+B%3BEbelhar%2C+M+W&rft.aulast=Minton&rft.aufirst=E&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gossypium; Verticillium dahliae; wilt; yield; quality ER - TY - JOUR T1 - Maize production impacts on groundwater quality. AN - 16387531; 2868406 AB - The cumulative effects of management practices on nitrate-nitrogen (NO sub(3)-N) leaching and groundwater quality are frequently difficult to document because of the time required for expression and the diversity of interacting processes involved. This work reports results of a N and water management program initiated by the Central Plate Natural Resource District (CPNRD) in Nebraska, USA. Cultural practices recommended by the CPNRD and reported by producers for the 1988 growing season, representing approximately 3900 fields covering 84,210 ha of irrigated corn indicated NO sub(3)-N contamination of groundwater was influenced by yield goals and fertilizer N application rates. Groundwater NO sub(3)-N concentrations were positively correlated with residual N in the surface 0.9 m of soil prior to the growing season, reflecting the effects of past N and water management practices. Yield goals in 1988 averaged 9% higher than the average 10.0 Mg/ha corn yield attained, which accounts for an average of about 20 kg N/ha in excess of the average N recommendation. Fertilizer N applied showed little relationship to fertilizer N recommended. Better education and more stringent measures may be required to address the select group of producers who fail to follow CPNRD recommendations. JF - Journal of Environmental Quality AU - Schepers, J S AU - Moravek, M G AU - Alberts, EE AU - Frank, K D AD - USDA-ARS, Dep. Agron., Univ. Nebraska, Lincoln, NE 68583-0915, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 12 EP - 16 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - government policies KW - government policy KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - agricultural pollution KW - fertilizers KW - water quality KW - nitrates KW - Freshwater KW - nitrogen KW - groundwater pollution KW - USA, Nebraska KW - leaching KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16387531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Maize+production+impacts+on+groundwater+quality.&rft.au=Schepers%2C+J+S%3BMoravek%2C+M+G%3BAlberts%2C+EE%3BFrank%2C+K+D&rft.aulast=Schepers&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - agricultural pollution; water quality; fertilizers; groundwater pollution; nitrates; leaching; nitrogen; government policies; USA, Nebraska; Freshwater ER - TY - JOUR T1 - Soybean seed coat structures: Relationship to weathering resistance and infection by the fungus Phomopsis phaseoli . AN - 16384711; 2878679 AB - The fungus Phomopsis phaseoli (Desmaz.) Sacc. (syn. P. sojae Lehman) incites a serious disease of soybean (Glycine max (L.) Merr.) seeds. This study was conducted to determine if an impermeable seed coat reduces infection by this fungus. Seeds of four soybean cultivars found in blotter tests to be infected by P. phaseoli in very low amounts (0-5%) and seeds of four other cultivars with high amounts of infection by this fungus (65-83%) were studied under scanning electron microscopy. Seed coats of cultivars with low P. phaseoli infection were found to lack pores, whereas those with high infection had multiple pores. In addition, seeds of the four cultivars with low infection had closed micropyles, whereas those with high infection had relatively open micropyles. This was reflected in their measurements: closed micropyles had an average area of 0.17 mm super(2), compared with 0.44 mm super(2) for the open ones. JF - Crop Science AU - Kulik, M M AU - Yaklich, R W AD - Soybean and Alfalfa Res., Plant Sci. Inst., USDA-ARS, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 108 EP - 113 VL - 31 IS - 1 SN - 0011-183X, 0011-183X KW - Phomopsis phaseoli KW - seed coat KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - structure KW - infection KW - seeds KW - Glycine max KW - K 03089:Fungi: plant KW - A 01025:Leguminous crops UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16384711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Soybean+seed+coat+structures%3A+Relationship+to+weathering+resistance+and+infection+by+the+fungus+Phomopsis+phaseoli+.&rft.au=Kulik%2C+M+M%3BYaklich%2C+R+W&rft.aulast=Kulik&rft.aufirst=M&rft.date=1991-01-01&rft.volume=31&rft.issue=1&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Glycine max; infection; structure; seeds ER - TY - JOUR T1 - RUSLE. Revised universal soil loss equation. AN - 16380270; 2877365 AB - There are many changes for estimating erosion by water in RUSLE, the revised universal soil loss equation. The changes include the following: Computerizing the algorithms to assist with the calculations. New rainfall-runoff erosivity term values (R) in the western United States, based on more than 1,200 gauge locations. Some revisions and additions for the eastern United States, including corrections for high R-factor areas with flat slopes to adjust for splash erosion associated with raindrops falling on ponded water. Development of a seasonally variable soil erodibility term (K). A subfactor approach for calculating the over-management term (C), with the subfactors representing considerations of prior land use, crop canopy, surface cover, and surface roughness. New slope length and steepness (LS) algorithms reflecting rill to interrill erosion ratios. The capacity to calculate LS products for slopes of varying shape. New conservation practice values (P) for rangelands, stripcrop rotations, contour factor values, and subsurface drainage. JF - Journal of Soil and Water Conservation AU - Renard, K G AU - Foster, G R AU - Weesies, G A AU - Porter, J P AD - ARS/USDA, Tucson, AZ 85719, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 30 EP - 33 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - RUSLE KW - erosion control KW - soils KW - ASFA 3: Aquatic Pollution & Environmental Quality; Health & Safety Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - erosion KW - mathematical models KW - Freshwater KW - conservation KW - runoff KW - soil conservation KW - soil erosion KW - aquatic environment KW - Q5 08523:Conservation, wildlife management and recreation KW - Q2 09264:Sediments and sedimentation KW - H SE6.28:LANDSLIDES AND EROSION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16380270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=RUSLE.+Revised+universal+soil+loss+equation.&rft.au=Renard%2C+K+G%3BFoster%2C+G+R%3BWeesies%2C+G+A%3BPorter%2C+J+P&rft.aulast=Renard&rft.aufirst=K&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; conservation; erosion; erosion control; runoff; soil conservation; mathematical models; soil erosion; aquatic environment; Freshwater ER - TY - JOUR T1 - Baseflow and stormflow transport of nutrients from mixed agricultural watersheds. AN - 16367998; 2856507 AB - The purposes of this study were to compare relative water and nutrient transports via storm runoff with amounts removed in continuous baseflow and to evaluate the influence of different management practices on such transport. Baseflow and storm runoff from four watersheds near Coshocton, Ohio, USA with different land use practices were measured, sampled, and analyzed for these comparisons. In two watersheds, 123 and 32.1 ha in size, containing woodland, pasture, and row crops, the majority of N moved from the watersheds in the storm runoff; however, 25 to 50% of the N transport was via baseflow. Although stormflow was the larger transport pathway for nutrients leaving a watershed, a sizable portion of the nutrients can be carried with the baseflow. This comparison of watersheds in an unglaciated area indicates that there is a negligible difference in the quality of water leaving an unfertilized wooded area or unfertilized pasture or a watershed that receives fertilization on 55% of its area. JF - Journal of Environmental Quality AU - Owens, L B AU - Edwards, WM AU - Keuren, R W AD - USDA-ARS, North Appalachian Exp. Watershed, P.O. Box 478, Coshocton, OH 43812, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 407 EP - 414 VL - 20 IS - 2 SN - 0047-2425, 0047-2425 KW - nutrients KW - nutrients (mineral) KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - fertilizers KW - watersheds KW - Freshwater KW - USA, Ohio, Coshocton KW - agricultural runoff KW - groundwater pollution KW - stormwater runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16367998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Baseflow+and+stormflow+transport+of+nutrients+from+mixed+agricultural+watersheds.&rft.au=Owens%2C+L+B%3BEdwards%2C+WM%3BKeuren%2C+R+W&rft.aulast=Owens&rft.aufirst=L&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - fertilizers; groundwater pollution; agricultural runoff; watersheds; nutrients (mineral); stormwater runoff; nutrients; USA, Ohio, Coshocton; Freshwater ER - TY - JOUR T1 - Transport and prediction of sulfate in agricultural runoff. AN - 16364818; 2856493 AB - The measurement and simulation of sulfate-S (SO sub(4)-S) mobility in agricultural watersheds is necessary to evaluate the effect of management practices on associated crop S deficiencies, enhanced leaching loss of nutrient cations, and acidification of percolation waters. The concentrations and amounts of SO sub(4)-S in runoff from six grassed and 13 cropped watersheds in the Southern Plains were, thus, measured over a 4-yr period. Sulfate-S transport in runoff was predicted using an equation describing the kinetics of SO sub(4)-S desorption from soil and compared with measured values. No SO sub(4)-S was added to any of the watersheds directly as S fertilizer or indirectly in N or P fertilizer material. No difference (at 5% level) in SO sub(4)-S concentration in runoff from grassed (mean annual value of 12.6 mg/L) and cropped (mean annual value of 11.0 mg/L) watersheds was observed. Differences in amounts (0.2-18.9 kg/ha/yr) were a function of runoff volume as influenced by land management. Measured and predicted SO sub(4)-S concentrations in runoff for individual events were not significantly different (at 5% level), with an average predictive standard error of 1.6 mg/L for all watersheds, representing 17% of the measured concentration. The equation may, thus, provide a predictive tool in agronomic and environmental studies of SO sub(4)-S movement in agricultural watersheds. JF - Journal of Environmental Quality AU - Sharpley, AN AU - Smith, S J AU - Jones, O R AU - Berg, WA AU - Coleman, G A AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702-1430, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 415 EP - 420 VL - 20 IS - 2 SN - 0047-2425, 0047-2425 KW - fate KW - percolation KW - sulphates KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - fertilizers KW - watersheds KW - Freshwater KW - agricultural runoff KW - pollutant persistence KW - acidification KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16364818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Transport+and+prediction+of+sulfate+in+agricultural+runoff.&rft.au=Sharpley%2C+AN%3BSmith%2C+S+J%3BJones%2C+O+R%3BBerg%2C+WA%3BColeman%2C+G+A&rft.aulast=Sharpley&rft.aufirst=AN&rft.date=1991-01-01&rft.volume=20&rft.issue=2&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - sulphates; fertilizers; agricultural runoff; pollutant persistence; watersheds; acidification; percolation; fate; Freshwater ER - TY - JOUR T1 - WEPP, a new generation of erosion prediction technology. AN - 16355072; 2856479 AB - Erosion prediction is the most widely used and most effective tool for soil conservation planning and design in the United States. Because it is impossible to monitor the influence of every farm and ranch management practice in all ecosystems under all weather conditions, erosion predictions are used to rank alternative practices with regard to their likely impact on erosion. These erosion predictions are thus an essential part of soil conservation programs in the United States. The prediction soil erosion by water has played an important role in the use, management, and assessment of land, not only in the United States, but in most regions of the world. The major tool has been the universal soil loss equation (USLE) developed by Wischmeier and Smith. JF - Journal of Soil and Water Conservation AU - Laflen, J M AU - Lane, L J AU - Foster, G R AD - Natl. Soil Erosion Res. Lab., Agric. Res. Serv., USDA, Purdue Univ., West Lafayette, IN 47907, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 34 EP - 38 VL - 46 IS - 1 SN - 0022-4561, 0022-4561 KW - erosion control KW - prediction KW - soils KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Health & Safety Science Abstracts KW - erosion KW - soil conservation KW - mathematical models KW - soil erosion KW - P 5000:LAND POLLUTION KW - H SE6.28:LANDSLIDES AND EROSION KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16355072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Soil+and+Water+Conservation&rft.atitle=WEPP%2C+a+new+generation+of+erosion+prediction+technology.&rft.au=Laflen%2C+J+M%3BLane%2C+L+J%3BFoster%2C+G+R&rft.aulast=Laflen&rft.aufirst=J&rft.date=1991-01-01&rft.volume=46&rft.issue=1&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Journal+of+Soil+and+Water+Conservation&rft.issn=00224561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - soils; erosion; erosion control; soil conservation; prediction; mathematical models; soil erosion ER - TY - JOUR T1 - Effects if channel restabilization on habitat diversity, Twentymile Creek, Mississippi. AN - 16352603; 2853616 AB - Twentymile Creek, a sand-bed stream draining a 450 km super(2) catchment in northeast Mississippi, was channelized prior to 1910, in 1938, and in 1966. Straightening and enlargement in 1966 was followed by channel instability--rapid bed degradation (2-4 m) and cross-section enlargement by 1.4 to 2.7 times. Grade control structures (GCS) (weirs with stone-protected stilling basins) and various types of streambank protection were constructed along the channel in the early 1980s to restore stability. Bank-line woody vegetation cover increased 8 per cent between 1981 and 1985 along Twentymile Creek but was stable along Mubby-chiwapa. Reaches above and below GCS were deeper with slower current velocities than elsewhere. Mean Shannon diversity indices based on physical data were similar for both streams, but were 58% higher for stations immediately above and below GCS than for other stations. Since construction of the GCS and bank protection measures, longitudinal berms have formed within the enlarged Twentymile Creek channel, creating a low-flow channel. JF - Regulated Rivers: Research & Management AU - Shields, FD Jr AU - Hoover, J J AD - USDA, Agric. Res. Serv., Natl. Sedimentation Lab., P.O. Box 1157, Oxford, MS 38655-1157, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 163 EP - 181 VL - 6 IS - 3 SN - 0886-9375, 0886-9375 KW - USA, Mississippi, Twentymile Creek KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - habitat KW - degradation KW - freshwater fish KW - environmental impact KW - channels KW - flood control KW - Freshwater KW - species diversity KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16352603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Effects+if+channel+restabilization+on+habitat+diversity%2C+Twentymile+Creek%2C+Mississippi.&rft.au=Shields%2C+FD+Jr%3BHoover%2C+J+J&rft.aulast=Shields&rft.aufirst=FD&rft.date=1991-01-01&rft.volume=6&rft.issue=3&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - habitat; degradation; freshwater fish; environmental impact; channels; flood control; species diversity; Freshwater ER - TY - JOUR T1 - Lactating cows become partially refractory to frequent intramammary endotoxin infusions: Recovery of milk yield despite a persistently high somatic cell count. AN - 16338294; 2839802 AB - Midlactation cows were infused with 10 mu g endotoxin in the same two homolateral quarters after each of several consecutive milkings to study the effect of prolonged, endotoxin-induced mastitis on lactational performance. The initial infusion induced an acute response with systemic involvement. Inflammation developed in infused quarters, and milk production declined and milk composition was altered in all quarters. Subsequent infusions failed to induce systemic responses. Furthermore, milk yield and composition in uninfused quarters returned to pretreatment levels despite further infusions. In infused quarters, milk yield, protein percentage and serum albumin concentration showed partial recovery during the endotoxin infusion period. In contrast, decreased lactose concentration, and increased cell count, N-acetyl- beta -D-glucosaminidase and lactoferrin levels persisted throughout the infusion period. After infusions were stopped, all measurements returned to near pretreatment levels. These data demonstrate that systemic, but not local, responses become refractory to multiple intramammary endotoxin infusions, and that multiple infusions have continued but little progressive or permanent, inhibitory effects on lactational performance despite a persistent mammary leucocytosis. JF - Research in Veterinary Science AU - Shuster, DE AU - Harmon, R J AD - Natl. Anim. Dis. Cent., USDA-Agric. Res. Serv., P.O. Box 70, Ames, IA 50010, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 272 EP - 277 VL - 51 IS - 3 SN - 0034-5288, 0034-5288 KW - cattle KW - Microbiology Abstracts B: Bacteriology; Toxicology Abstracts KW - lactation KW - endotoxins KW - mastitis KW - milk production KW - X 24171:Microbial KW - J 02823:In vitro and in vivo effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16338294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+Veterinary+Science&rft.atitle=Lactating+cows+become+partially+refractory+to+frequent+intramammary+endotoxin+infusions%3A+Recovery+of+milk+yield+despite+a+persistently+high+somatic+cell+count.&rft.au=Shuster%2C+DE%3BHarmon%2C+R+J&rft.aulast=Shuster&rft.aufirst=DE&rft.date=1991-01-01&rft.volume=51&rft.issue=3&rft.spage=272&rft.isbn=&rft.btitle=&rft.title=Research+in+Veterinary+Science&rft.issn=00345288&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - endotoxins; mastitis; lactation; milk production ER - TY - JOUR T1 - Progress in plant disease resistance research. AN - 16335915; 2843459 AB - The nature, application and dependability of plant disease resistance and the impact of the science of genetics is reviewed. Recent discoveries at population, cellular and molecular levels that have greatly expanded opportunities for conducting research on plant disease resistance are presented and breeding strategies for improved crop protection are summarized. Other issues discussed include progress made in understanding host-pathogen relationships; biological control, gene mapping and genetic engineering; low-input sustainable agriculture and integrated pest management; and the need for international scientific collaboration on crop improvement policies and methodologies. JF - FAO Plant Protection Bulletin AU - Mackenzie AD - USDA, Coop. State Res. Serv., Suite 330, Aerospace Build., 901 D St., SW, Washington, DC 20250-2200, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 147 EP - 154 VL - 39 IS - 4 SN - 0254-9727, 0254-9727 KW - Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - disease resistance KW - plant breeding KW - biological control KW - host-pathogen interactions KW - genetics KW - plant diseases KW - J 02880:Plant diseases KW - K 03089:Fungi: plant KW - V 22187:Control & treatment KW - A 01030:General KW - A 01024:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16335915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FAO+Plant+Protection+Bulletin&rft.atitle=Progress+in+plant+disease+resistance+research.&rft.au=Mackenzie&rft.aulast=Mackenzie&rft.aufirst=&rft.date=1991-01-01&rft.volume=39&rft.issue=4&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=FAO+Plant+Protection+Bulletin&rft.issn=02549727&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - plant diseases; disease resistance; host-pathogen interactions; genetics; plant breeding; biological control ER - TY - JOUR T1 - Effect of growth stage on soybean response to chronic ozone exposure. AN - 16334806; 2840447 AB - Four cultivars of soybean (Glycine max (L.) Merr., cv. Forrest, Davis, Bragg, and Ransom) were exposed to chronic doses of O sub(3) in open-top field chambers to determine if a relationship exists between growth stage and yield response to O sub(3). Sixteen different quarterly sequences represented all possible combinations of the C and N treatments. The mean 31-d O sub(3) concentration (7 h/d mean) in the N treatment was almost identical at 96 to 98 nL/L (ppb) for each quarter. In the sequence with N during all four quarters (NNNN), plants were exposed from emergence to physiological maturity. Models to estimate O sub(3)-yield relationships were developed separately for each cultivar using seasonal and quarterly O sub(3) statistics. JF - Journal of Environmental Quality AU - Heagle, A S AU - Miller, JE AU - Rawlings, JO AU - Vozzo, S F AD - Dep. Plant Pathol., USDA-ARS, North Carolina State Univ., Raleigh, NC 27695, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 562 EP - 570 VL - 20 IS - 3 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - ozone KW - crops KW - seasonal variations KW - growth KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16334806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Effect+of+growth+stage+on+soybean+response+to+chronic+ozone+exposure.&rft.au=Heagle%2C+A+S%3BMiller%2C+JE%3BRawlings%2C+JO%3BVozzo%2C+S+F&rft.aulast=Heagle&rft.aufirst=A&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=562&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - crops; growth; ozone; seasonal variations ER - TY - JOUR T1 - Application of ecological classification to environmental effects analysis. AN - 16329532; 2839668 AB - The primary objective of this article is to discuss how ecological classification may be used in assessing the effects of management practices upon a variety of resources (e.g., wildlife habitat, cattle forage, and watershed hydrologic function). A secondary objective is to outline the systematic process for ecosystem effects analysis the Northern Region of the US Forest Service is currently testing in their environmental assessment efforts. JF - Journal of Environmental Quality AU - Jensen, ME AU - McNicoll, CH AU - Prather, M AD - USDA-FS, Northern Reg., P.O. Box 7669, Federal Build., Missoula, MT 59807, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 24 EP - 30 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Forest Service Northern Region KW - USDA Northern Region KW - classification systems KW - environmental management KW - inland water environment KW - plants KW - vegetation KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts KW - environment management KW - ecosystems KW - Freshwater KW - ecology KW - resource management KW - hydrology KW - USA KW - land use KW - P 9000:ENVIRONMENTAL ACTION KW - Q5 08522:Protective measures and control KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16329532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Application+of+ecological+classification+to+environmental+effects+analysis.&rft.au=Jensen%2C+ME%3BMcNicoll%2C+CH%3BPrather%2C+M&rft.aulast=Jensen&rft.aufirst=ME&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrology; inland water environment; environment management; ecosystems; ecology; classification systems; resource management; land use; plants; vegetation; USA; Freshwater ER - TY - JOUR T1 - Response of net carbon exchange rate of soybean to ozone at different stages of growth and its relation to yield. AN - 16327358; 2840461 AB - Field experiments with soybean (Glycine max (Merr.) cv. Davis) were performed to determine the impact of O sub(3) exposure at different stages of plant development on net carbon exchange rate (NCER) and to establish the relationship between NCER and yield for different O sub(3) exposure periods. The growing season was divided into four quarters (Q1-Q4) of 31 d each for O sub(3) treatment. In each quarter, O sub(3) treatments in open-top chambers were either charcoal-filtered air (C) or nonfiltered air (N) to which O sub(3) was added to achieve approximately 100 nL L super(-1) O sub(3) (mean 7 h d super(-1) average for the quarter). Good linear relationships of yield and NCER were found when Q3 and Q4 or Q2, Q3, and Q4 data were combined. In all cases, however, Q4 data were essential to a good correlation between NCER and yield. JF - Journal of Environmental Quality AU - Miller, JE AU - Pursley, WA AU - Vozzo, S F AU - Heagle, A S AD - USDA-ARS, Air Qual. Program and Dep. Crop Sci., North Carolina State Univ., 1509 Varsity Dr., Raleigh, NC, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 571 EP - 575 VL - 20 IS - 3 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - photosynthesis KW - ozone KW - crops KW - pollution effects KW - growth KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16327358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Response+of+net+carbon+exchange+rate+of+soybean+to+ozone+at+different+stages+of+growth+and+its+relation+to+yield.&rft.au=Miller%2C+JE%3BPursley%2C+WA%3BVozzo%2C+S+F%3BHeagle%2C+A+S&rft.aulast=Miller&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=20&rft.issue=3&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - ozone; crops; photosynthesis; growth; pollution effects ER - TY - JOUR T1 - Hematologic and immunologic toxicity of deoxynivalenol (DON)-contaminated diets to growing chickens. AN - 16326384; 2842618 AB - Deoxynivalenol (3a,7a,15-trihydroxy-12,13-epoxytrichothec-9-en-one; (DON, vomitoxin)), is a mycotoxin which can be produced in various commodities by Fusarium species of fungi. Because DON induces changes in the hematopoietic system of chicks and alters immune response in mice and chicks, the objectives of the present study were: 1) to characterize the effects of DON-contaminated wheat diets on hematologic measurements, cell-mediated immune responses, and humoral immune responses of Leghorn chickens and 2) to measure the effects of diets formulated with purified DON on hematologic measurements and cell-mediated immune responses of broiler and Leghorn chicks. JF - Bulletin of Environmental Contamination and Toxicology AU - Harvey, R B AU - Kubena, L F AU - Huff, W E AU - Elissalde, M H AU - Phillips, T D AD - USDA, Agric. Res. Serv., Food Anim. Prot. Res. Lab., Route 5, Box 810, College Station, TX 77840, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 410 EP - 416 VL - 46 IS - 3 SN - 0007-4861, 0007-4861 KW - vomitoxin KW - haematology KW - chickens KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Fusarium KW - immunology KW - toxicity KW - mycotoxins KW - K 03082:Mycotoxins KW - X 24171:Microbial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16326384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Hematologic+and+immunologic+toxicity+of+deoxynivalenol+%28DON%29-contaminated+diets+to+growing+chickens.&rft.au=Harvey%2C+R+B%3BKubena%2C+L+F%3BHuff%2C+W+E%3BElissalde%2C+M+H%3BPhillips%2C+T+D&rft.aulast=Harvey&rft.aufirst=R&rft.date=1991-01-01&rft.volume=46&rft.issue=3&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fusarium; toxicity; immunology; mycotoxins ER - TY - JOUR T1 - Modeling the cumulative watershed effects of forest management strategies. AN - 16311412; 2824718 AB - There is increasing concern over the possibility of adverse cumulative watershed effects from intensive forest management. It is impractical to address many aspects of the problem experimentally because to do so would require studying large watersheds for 100 yr or more. One such aspect is the long-term effect of forest management strategies on erosion and sedimentation and the resultant damage to fish habitat. Is dispersing activities in time and space an effective way to minimize cumulative sedimentation effects? To address this problem, Monte Carlo simulations were conducted on four hypothetical 10,000-ha fifth-order forested watersheds. The parameters governing the simulations were based on recent data from coastal Oregon, USA and northwestern California. JF - Journal of Environmental Quality AU - Ziemer, R R AU - Lewis, J AU - Rice, R M AU - Lisle, TE AD - Pacific Southwest Res. Stn., USDA-FS, 1700 Bayview Dr., Arcata, CA 95521, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 36 EP - 42 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Marine KW - erosion KW - environmental impact KW - sedimentation KW - watersheds KW - Freshwater KW - simulation KW - Pisces KW - INE, USA, Oregon KW - habitat KW - forest industry KW - INE, USA, California KW - land use KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16311412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Modeling+the+cumulative+watershed+effects+of+forest+management+strategies.&rft.au=Ziemer%2C+R+R%3BLewis%2C+J%3BRice%2C+R+M%3BLisle%2C+TE&rft.aulast=Ziemer&rft.aufirst=R&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - habitat; erosion; forest industry; environmental impact; sedimentation; watersheds; simulation; land use; Pisces; INE, USA, Oregon; INE, USA, California; Marine; Freshwater ER - TY - JOUR T1 - Dinitrogen fixation potential and yield of hypernodulating soybean mutants: A field evaluation. AN - 16297104; 2806601 JF - Crop Science AU - Wu, S AU - Harper, JE AD - USDA-ARS, Plant Biol. and Genet. Res., Univ. Illinois, 1201 W. Gregory, Urbana, IL 61801, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1233 EP - 1240 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - hypernodulation mutants KW - nitrogen KW - Glycine max KW - Rhizobiaceae KW - fertilizers KW - inhibition KW - mutants KW - nitrogen fixation KW - nodulation KW - nutrient availability KW - yield KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - G 07355:GENERAL) KW - W 30514:Soil organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16297104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Dinitrogen+fixation+potential+and+yield+of+hypernodulating+soybean+mutants%3A+A+field+evaluation.&rft.au=Wu%2C+S%3BHarper%2C+JE&rft.aulast=Wu&rft.aufirst=S&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1233&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rhizobiaceae; Glycine max; nodulation; nitrogen fixation; inhibition; fertilizers; nutrient availability; yield; mutants ER - TY - JOUR T1 - Long-term ionic increases from a central Appalachian forested watershed. AN - 16296464; 2811509 AB - The electrical conductivity of stream water draining from an unmanaged and undisturbed control watershed has been increasing rather steadily, about 0.03 mS m super(-1) yr super(-1), since 1971. During this period, NO sub(3) super(-) and Ca super(2+) concentrations increased and were shown to mathematically account for the ionic contribution to conductivity; therefore, they are believed to be primarily responsible for the increase. However, the percentage of conductivity explained by the two ions was different over time. The percentage of conductivity attributable to NO sub(3) super(-) increased in a pattern very similar to concentration. In contrast, the percentage of conductivity attributable to Ca super(2+) decreased slightly over time. The Ca super(2+) is believed to be pairing with the NO sub(3) super(-) as the NO sub(3) super(-) ions leach through the soil. JF - Journal of Environmental Quality AU - Edwards, P J AU - Helvey, J D AD - USDA, For. Serv., Northeastern Forest Exp. Stn., Timber and Watershed Lab., P.O. Box 404, Nursery Bottom, Parsons, WV 26287, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 250 EP - 255 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Appalachian Mountains KW - soils KW - Pollution Abstracts KW - calcium KW - forests KW - watersheds KW - ions KW - nitrogen oxides KW - streams KW - leaching KW - P 2000:FRESHWATER POLLUTION KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16296464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Long-term+ionic+increases+from+a+central+Appalachian+forested+watershed.&rft.au=Edwards%2C+P+J%3BHelvey%2C+J+D&rft.aulast=Edwards&rft.aufirst=P&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - watersheds; forests; ions; streams; calcium; nitrogen oxides; leaching ER - TY - JOUR T1 - Swainsonine-induced high mountain disease in calves. AN - 16292696; 2809837 AB - Swainsonine, and indolizidine alkaloid in the locoweeds (certain species of the Astragalus and Oxytropis genera), was fed to young Holstein bull calves in their milk at high elevation (3090 m), and the incidence of high mountain disease (HMD) was compared with locoweed-fed and control calves. Five of 5 calves fed swainsonine and 5 of 5 calves fed fresh Oxytropis sericea showed outward signs of HMD, which included edema under the jaws, throat area and brisket and gross and microscopic lesions of HMD and locoweed poisoning. Grossly there were HMD lesions, including congestion of the liver, right ventricular hypertrophy, and dilatation and excessive fluid in the thoracic and abdominal cavities. Microscopically, the severe centrilobular lesions in the liver, edema of the pulmonary artery, severe edema and/or fibrosis of the roof of the right atrium were suggestive of HMD. JF - Veterinary and Human Toxicology AU - James, L F AU - Panter, KE AU - Broquist, H P AU - Hartley, W J AD - USDA/ARS Poisonous Plant Res. Lab., Logan, UT 84333, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 217 EP - 219 VL - 33 IS - 3 SN - 0145-6296, 0145-6296 KW - swainsonine KW - high mountain disease KW - cattle KW - Toxicology Abstracts KW - Oxytropis KW - Astragalus KW - X 24172:Plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16292696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Veterinary+and+Human+Toxicology&rft.atitle=Swainsonine-induced+high+mountain+disease+in+calves.&rft.au=James%2C+L+F%3BPanter%2C+KE%3BBroquist%2C+H+P%3BHartley%2C+W+J&rft.aulast=James&rft.aufirst=L&rft.date=1991-01-01&rft.volume=33&rft.issue=3&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Veterinary+and+Human+Toxicology&rft.issn=01456296&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Astragalus; Oxytropis ER - TY - JOUR T1 - Effects of spatial accumulation of runoff on watershed response. AN - 16287392; 2806520 AB - The drainage network accumulates upstream subwatershed runoff into a single downstream response, with runoff accumulating at network junctions. The effects of this accumulation on the magnitude and spatial variability of the downstream response are reviewed for simplified boundary conditions. Runoff parameters are runoff depth and corresponding unit area peak runoff rate. At the subwatershed level these parameters are referred to as d and q, respectively, and they vary from one subwatershed to another. At a downstream location, after accumulation by the drainage network, corresponding parameters are referred to as D and Q. Equations expressing the effects of runoff accumulation are formulated and discussed for uniform rainfall conditions. The review shows that the effects of runoff accumulation gain in importance as the number of upstream subwatersheds and the size of the watershed increase in the downstream direction. The review suggests that the role of spatial variability of upstream d and q in the determination of downstream D and Q diminishes as watershed size increases. However, nonuniform rainfall distributions and storm movement may overshadow the effects of runoff accumulation when watershed size increases beyond the size of the storm. JF - Journal of Environmental Quality AU - Garbrecht, J AD - USDA-ARS, Water Qual. and Watershed Res. Lab., P.O. Box 1430, Durant, OK 74702, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 31 EP - 35 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - models KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - hydrology KW - statistical analysis KW - watersheds KW - mathematical models KW - Freshwater KW - runoff KW - storms KW - stormwater runoff KW - P 2000:FRESHWATER POLLUTION KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16287392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Effects+of+spatial+accumulation+of+runoff+on+watershed+response.&rft.au=Garbrecht%2C+J&rft.aulast=Garbrecht&rft.aufirst=J&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - hydrology; models; runoff; statistical analysis; watersheds; mathematical models; storms; stormwater runoff; Freshwater ER - TY - JOUR T1 - Heritability of resistance to seed shattering in kleingrass. AN - 16284680; 2811791 AB - Seed shattering and nonuniformity of seed ripening in kleingrass, Panicum coloratum (L.), reduce the quantity of harvestable seed and contribute to diminished seed quality. In this study two populations were derived from an accession of kleingrass (PI 410177) that has superior seed retention. The objective was to determine the heritability of seed retention and the feasibility of developing improved germplasm from these populations. Variation for seed retention (SR) was demonstrated in these populations using a laboratory procedure for measuring SR. The heritability of SR was measured using parent-offspring regression. Narrow-sense heritabilities were similar and low in both populations (0.38 and 0.40), and genotype x environment interactions were a large component of the total variation. JF - Crop Science AU - Young, BA AD - USDA-ARS, Grassland, Soil and Water Res. Lab., Temple, TX 76502, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1156 EP - 1158 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - seed shattering KW - Panicum coloratum KW - heritability KW - plant breeding KW - resistance KW - seeds KW - strains KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - South Africa KW - W 30511:Plant breeding and aquaculture KW - G 07357:GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16284680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Heritability+of+resistance+to+seed+shattering+in+kleingrass.&rft.au=Young%2C+BA&rft.aulast=Young&rft.aufirst=BA&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1156&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Panicum coloratum; South Africa; resistance; strains; heritability; plant breeding; seeds ER - TY - JOUR T1 - Reduction of nitrate in aquifer microcosms by carbon additions. AN - 16284319; 2795423 AB - Aquifer microcosms were used to examine the effects of NO sub(3) super(-) and C amendments on groundwater from the Claiborne aquifer. Nitrate concentrations of 12.17 mg L super(-1) in aquifer microcosms were reduced 0.92%/d to 5.84 mg L super(-1) by the addition of 10 mg C L super(-1) for 35 d. Nitrate disappearance correlated with increases in number of denitrifiers and dissolved N sub(2)O concentration and decreases in dissolved oxygen, suggesting biological denitrification. Nitrate/chloride ratios decreased in microcosms with 10 mg C L super(-1) added and then increased when the C addition was removed. Carbon additions of 0.4 mg C L super(-1) had no effect on the microbial or chemical properties of the microcosms. JF - Journal of Environmental Quality AU - Obenhuber, D C AU - Lowrance, R AD - USDA-ARS, Southeast Watershed Res. Lab., Tifton, GA 31793, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 255 EP - 258 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - Pollution Abstracts KW - nitrates KW - aquifers KW - groundwater KW - carbon KW - contamination KW - microorganisms KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16284319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Reduction+of+nitrate+in+aquifer+microcosms+by+carbon+additions.&rft.au=Obenhuber%2C+D+C%3BLowrance%2C+R&rft.aulast=Obenhuber&rft.aufirst=D&rft.date=1991-01-01&rft.volume=20&rft.issue=1&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - aquifers; groundwater; nitrates; contamination; carbon; microorganisms ER - TY - JOUR T1 - Nodulation interaction of the soybean allele Rj2 with Asiatic isolates of Bradyrhizobium japonicum . AN - 16282726; 2806610 AB - The dominant allele Rj2 in soybean, Glycine max (L.) Merr., restricts nodulation with Bradyrhizobium japonicum (Jordan) strains USDA 7, USDA 14, and USDA 122, while the recessive allele rj2 permits normal nodulation. To determine the frequency of nodulation restriction by the Rj2 allele of soybean, 89 bradyrhizobial isolates from Asia were tested in Leonard jar culture for nodulation response with near isogenic plant lines differing at the Rj2 locus. Fifty-one percent of the isolates tested elicited the nodulation restriction of the Rj2 allele. No geographic pattern in the occurrence of Rj2-restricted strains was discerned. Nearly half (47%) of the isolates restricted by the Rj2 allele were from Serogroup 6. Twenty-one of 25 Serogroup 6 strains were restricted by the Rj2 allele. Since some strains in Serogroup 6 were not restricted by the Rj2 allele and some strains not in Serogroup 6 were restricted, specific serological reaction per se is not essential or necessary for eliciting the action of the Rj2 allele. It appears that the Rj2 rejection is not as related to serotype as had been assumed. JF - Crop Science AU - Devine, TE AU - Kuykendall, L D AU - O'Neill, J J AD - Plant Sci. Inst., USDA-ARS, Beltsville Agric. Res. Cent.-West, Beltsville, MD 20705, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1129 EP - 1131 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - Rj2 allele KW - Bradyrhizobium japonicum KW - Glycine max KW - alleles KW - nodulation KW - regulation KW - restriction KW - soil isolates KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Asia KW - A 01051:Nitrogen cycle KW - J 02901:Soil and plants KW - W 30511:Plant breeding and aquaculture KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16282726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Nodulation+interaction+of+the+soybean+allele+Rj2+with+Asiatic+isolates+of+Bradyrhizobium+japonicum+.&rft.au=Devine%2C+TE%3BKuykendall%2C+L+D%3BO%27Neill%2C+J+J&rft.aulast=Devine&rft.aufirst=TE&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1129&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Bradyrhizobium japonicum; Glycine max; Asia; soil isolates; nodulation; regulation; restriction; alleles ER - TY - JOUR T1 - Selection for resistance to Aphanomyces euteiches in red clover. AN - 16280483; 2808495 AB - Red clover (Trifolium pratense L.) is known to be a moderate host for Aphanomyces euteiches Drechs. Recently, an isolate of A. euteiches (Ae-572) was observed to be highly virulent on red clover. This research was conducted to determine inheritance of, and select for resistance to A. euteiches in red clover using an inoculated seedling assay. Resistant and susceptible red clover plants were intercrossed to study the inheritance of resistance. Frequency distributions of resistant and susceptible F sub(1) plants indicated that resistance to A. euteiches) is inherited as a quantitative trait. Three cycles of selection for resistance to A. euteiches in red clover resulted in significant improvement in resistance from the original selected population (cycle 0 = 3.64 mean disease severity index (DSI); Cycle 3 - 2.43 mean DSI). Narrow-sense heritability estimates were high enough (h super(2) sub(n) = 51% for Cycle 3) to assure that a recurrent selection program utilizing family selection could be used to improve red clover populations for resistance to A. euteiches). JF - Crop Science AU - Tofte, JE AU - Smith, R R AU - Grau, C R AD - Dep. Agron., Univ. Wisconsin-Madison and USDA-ARS, Madison, WI 53706, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1141 EP - 1144 VL - 31 IS - 5 SN - 0011-183X, 0011-183X KW - Aphanomyces euteiches KW - Trifolium pratense KW - inheritance KW - resistance KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03087:Fungi: human KW - W 30511:Plant breeding and aquaculture KW - A 01025:Leguminous crops KW - G 07355:GENERAL) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16280483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Crop+Science&rft.atitle=Selection+for+resistance+to+Aphanomyces+euteiches+in+red+clover.&rft.au=Tofte%2C+JE%3BSmith%2C+R+R%3BGrau%2C+C+R&rft.aulast=Tofte&rft.aufirst=JE&rft.date=1991-01-01&rft.volume=31&rft.issue=5&rft.spage=1141&rft.isbn=&rft.btitle=&rft.title=Crop+Science&rft.issn=0011183X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aphanomyces euteiches; Trifolium pratense; resistance; inheritance ER - TY - JOUR T1 - Blood fraction effects on the antibotulinal efficacy of nitrite in model beef sausages. AN - 16279942; 2800512 AB - Toxin production by Clostridium botulinum was studied in a model cured beef sausage containing 0-5% added dried bovine blood fractions. Controls which contained nitrite but without blood fractions, were toxic by bioassay in 3 wk at 27 degree C. Controls without nitrite or blood fractions were toxic at 1 wk, while model sausages supplemented with hemoglobin, red cells, or whole blood were toxic in 1-3 wk. Plasma yielded no detectable toxin for 4 to > 10 wk depending upon addition level. Sausages showing delayed toxigenesis had pH values lower than those which developed toxin earlier. These results demonstrated that use of blood fractions that increased iron levels in beef above 30 mu g/g interfered with the antibotulinal efficacy of sodium nitrite. JF - Journal of Food Science AU - Miller, A J AU - Menichillo, DA AD - USDA-ARS Eastern Reg. Res. Cent., 600 E. Mermaid Ln., Philadelphia, PA 19118, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 1158 EP - 1160 VL - 56 IS - 5 SN - 0022-1147, 0022-1147 KW - sodium nitrite KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - toxins KW - beef KW - blood KW - Clostridium botulinum KW - botulism KW - cured products KW - A 01017:Human foods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16279942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Food+Science&rft.atitle=Blood+fraction+effects+on+the+antibotulinal+efficacy+of+nitrite+in+model+beef+sausages.&rft.au=Miller%2C+A+J%3BMenichillo%2C+DA&rft.aulast=Miller&rft.aufirst=A&rft.date=1991-01-01&rft.volume=56&rft.issue=5&rft.spage=1158&rft.isbn=&rft.btitle=&rft.title=Journal+of+Food+Science&rft.issn=00221147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Clostridium botulinum; toxins; cured products; beef; blood; botulism ER - TY - JOUR T1 - Field decay of wheat straw and its effects on metribuzin and S-ethyl metribuzin sorption and elution from crop residues. AN - 16277074; 2795491 AB - Best agricultural management practices (BMP) are needed for minimizing the potential off-site transport of agricultural chemicals while retaining their chemical efficacy. Field and laboratory studies of herbicide-crop residue interactions in conservation tillage systems were conducted to determine weather-induced changes in wheat (Triticum aestivum L.) straw chemical composition, the capacity of plant residues to retain metribuzin and its S-ethyl analog, and the changes in herbicide sorption characteristics of these residues as they decay in the field. Although metribuzin and S-ethyl metribuzin are primarily soil-activated herbicides, they would still be effective for post-emergency control of Bromus spp. in winter wheat due to foliar absorption and slow release from the straw mulch. By the same token, the straw mulch is a temporary storage medium to alter these herbicides' environmental dispersion pattern and may be a significant mechanism of retardation of agricultural chemical movement to the subsurface of lands under conservation tillage. JF - Journal of Environmental Quality AU - Dao, TH AD - USDA-ARS, P.O. Box 1199, El Reno, OK 73036, USA Y1 - 1991 PY - 1991 DA - 1991 SP - 203 EP - 208 VL - 20 IS - 1 SN - 0047-2425, 0047-2425 KW - metribuzin KW - soils KW - Pollution Abstracts; Health & Safety Science Abstracts KW - residues KW - sorption KW - chemicals KW - Triticum aestivum KW - herbicides KW - agriculture KW - crops KW - P 5000