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Articles 5191 - 5220 of 7527
Full-Text Articles in Entire DC Network
Small Farming Systems For The Midwest And Reintegrating Agriculture And Community In The Midwest, Richard Olson, Lisa Bauer
Small Farming Systems For The Midwest And Reintegrating Agriculture And Community In The Midwest, Richard Olson, Lisa Bauer
CARI Extension and Education Materials for Sustainable Agriculture
Part I: Small Farming Systems for the Midwest Small farms are real farms. 1 John Ikerd
A time to act for family-sized farms. 7 Chuck Hassebrook
Successful systems for market gardening 13 Lynn Byczynski
Hogs, hoop houses, and holistic management: A diversified crop/livestock farm 23 Tom Frantzen
Trees and herbs: A multi-storied agricultural system for southeastern Iowa 29 Tom Wahl, Kathy Dice
Integrating quality of life, economic and environmental issues: An agroecosystem analysis of Amish farming 39 Deborah Stinner, Richard Moore, Benjamin Stinner, Fred Hitzhusen
Adding value: Pastured-poultry, direct marketing and other strategies 47 Muriel Barrett
Integrating management-intensive grazing with …
Hydrogen-Deuterium Exchange And Ultraviolet Resonance Raman Spectroscopy Of Bacteria In A Complex Food Matrix, Gregory P. Harhay, Gregory R. Siragusa
Hydrogen-Deuterium Exchange And Ultraviolet Resonance Raman Spectroscopy Of Bacteria In A Complex Food Matrix, Gregory P. Harhay, Gregory R. Siragusa
Roman L. Hruska U.S. Meat Animal Research Center: Reports
The rapid identification and quantification of pathogenic foodborne bacteria is a national research priority. Data collected with a new spectrochemical method suggests that resonance Raman spectroscopy can rapidly and selectively identify and quantify bacteria in foods and other complex biomatrices. This method utilizes hydrogen-deuterium exchange (HDE) to resolve the spectral fingerprints of individual components in the overlapped regions of the ultraviolet resonance Raman spectra of heterogeneous samples. We illustrate this concept with HDE-induced changes in the spectra of bacteria and beef carcass wash samples. The data presented here suggest that the combination of ultraviolet resonance Raman spectroscopy and HDE can …
Vol. 3, No. 1: Women Migrants Play Positive Role, Jonathan Crush, Vincent Williams
Vol. 3, No. 1: Women Migrants Play Positive Role, Jonathan Crush, Vincent Williams
Southern African Migration Programme
No abstract provided.
Flea News 57 (January 1999), Robert E. Lewis
Flea News 57 (January 1999), Robert E. Lewis
Flea News
Mailing list changes
Miscellanea: The following article concerning plague in prairie dogs in Texas is taken from the July-August issue of the Technical Information Bulletin of the Armed Forces Pest Management Board.
Siphonaptera literature
American Society Of Parasitologists Newsletter, V. 21, No. 4, December 31, 1999, Scott Lyell Gardner
American Society Of Parasitologists Newsletter, V. 21, No. 4, December 31, 1999, Scott Lyell Gardner
American Society of Parasitologists: Newsletter
An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.
1999 Acts Of Synod, Crcna
1999 Acts Of Synod, Crcna
Agendas and Acts of Synod
Ancaster, ON: Wayne A. Brouwer, president; Stanely P. Mast, vice-president; George Vandervelde, first clerk; Henry P. Kranenberg, second clerk
Inflammatory Proteins In Alzheimer's Disease, Maria Nikolaeva
Inflammatory Proteins In Alzheimer's Disease, Maria Nikolaeva
All-Inclusive List of Electronic Theses and Dissertations
Alzheimer's disease (AD) is clinically characterized by progressive mental decline. The pathomorphology of AD includes the accumulation of abnormal filaments, known as neurofibrillary tangles or NFT, within the nerve cells and of extracellular deposits of amyloid fibers surrounded by dystrophic neurites that form senile plaques. Many inflammatory proteins have been found in association with lesions in AD brain, but the role of the inflammatory reactions in AD pathogenesis is not known. The goal of this study was to analyze the relationship between the inflammatory and neuropathological changes in AD brain through examining the density of lesions immunoreactive for inflammatory proteins …
Considerations For The School Psychologist When Providing Services For Maltreated Foster Children: A Developmental Perspective, Linda Webster
Considerations For The School Psychologist When Providing Services For Maltreated Foster Children: A Developmental Perspective, Linda Webster
Benerd College Faculty Articles
As the body of research on attachment grows, attachment theory is being increasingly utilized by psychologists as a useful way of conceptualizing the problem behaviors that many foster children present. In addition, this paper explores Bowlby’s (1988) model of developmental pathways as a means to understand both normal and abnormal processes and patterns of adaptation and maladaptation. The empirical bases connecting the theoretical principles of attachment with child maltreatment are discussed, and a theoretical rationale for assessment and intervention with attachment-disordered foster children with an emphasis on modifying the child’s negative working model of attachment relationships is presented.
“There Is Nothing More Divine Than These, Except Man”: Thomas Moffett And Insect Sociality, Monique Bourque
“There Is Nothing More Divine Than These, Except Man”: Thomas Moffett And Insect Sociality, Monique Bourque
Quidditas
When Thoomas Moffett wrote in the Theater of Insects that "there is nothing more divine than these, except Man," he asked his readers some pointed questions about insects, and made some blunt statements:
where is Nature more to be seen than in the smallest matters, where she is entirely all? for in great bodies the workmanship is easie, the matter being ductile; but in these that are so small and despicable, and almost nothing, what care? how great is the effect of it? how unspeakable is the perfection? ... Do you require Prudence? regard the Ant; Do you desire Justice? …
1999 Platte River Basin Ecosystem Symposium Proceedings
1999 Platte River Basin Ecosystem Symposium Proceedings
Water Current Newsletter
No abstract provided.
Between Monster And Machine: Rethinking The Judicial Function, Lee Anne Fennell
Between Monster And Machine: Rethinking The Judicial Function, Lee Anne Fennell
Articles
No abstract provided.
Theodore Dru Alison Cockerell, Sue Ann Gardner
Theodore Dru Alison Cockerell, Sue Ann Gardner
University of Nebraska-Lincoln Libraries: Faculty Publications
Theodore Dru Alison Cockerell, entomologist and systematic biologist, published nearly 4,000 papers, some of them only a few lines long. Cockerell’s special interest in bees led him to describe and name specimens from the United States, the West Indies, Honduras, the Philippines, Africa, and Asia. He published at least 5,500 names for species and varieties of bees and almost 150 names for genera and subgenera. It has been estimated that this represented over a quarter of all known species of bees during his lifetime. Above all, however, Cockerell was a general systematist. In addition to extensive studies of bees and …
Family Cluster Of Rocky Mountain Spotted Fever, James E. Childs, Timothy F. Jones, Allen S. Craig, Christopher D. Paddock, Don B. Mckechnie, Sherif R. Zaki, William Schaffner
Family Cluster Of Rocky Mountain Spotted Fever, James E. Childs, Timothy F. Jones, Allen S. Craig, Christopher D. Paddock, Don B. Mckechnie, Sherif R. Zaki, William Schaffner
Zoonotics and Wildlife Disease: Publications
Soon after a patient from Tennessee died of Rocky Mountain spotted fever (RMSF), several family members developed symptoms suggestive of the disease and were treated presumptively for RMSF. Fifty-four persons visiting the index patient's home were interviewed; serum samples were collected from 35. Three additional cases of RMSF were confirmed, all of which occurred in firstdegree relatives. Time spent at the family home and going into the surrounding woods were significantly associated with developing antibodies to Rickettsia rickettsii. Ticks were collected and examined for rickettsiae by polymerase chain reaction analysis. Because hyperendemic foci and family clusters of RMSF can …
Molecular Cloning And Characterization Of The Ehrlichia Chaffeensis Variable-Length Pcr Target: An Antigen-Expressing Gene That Exhibits Interstrain Variation, John W. Sumner, James E. Childs, Christopher D. Paddock
Molecular Cloning And Characterization Of The Ehrlichia Chaffeensis Variable-Length Pcr Target: An Antigen-Expressing Gene That Exhibits Interstrain Variation, John W. Sumner, James E. Childs, Christopher D. Paddock
Zoonotics and Wildlife Disease: Publications
A clone expressing an immunoreactive protein with an apparent molecular mass of 44 kDa was selected from an Ehrlichia chaffeensis Arkansas genomic library by probing with anti-E. chaffeensis hyperimmune mouse ascitic fluid. Nucleotide sequencing revealed an open reading frame (ORF) capable of encoding a 198-aminoacid polypeptide. The ORF contained four imperfect, direct, tandem 90-bp repeats. The nucleotide and deduced amino acid sequences did not show close homologies to entries in the molecular databases. PCR with primers whose sequences matched the sequences flanking the ORF was performed with DNA samples extracted from cell cultures infected with nine different isolates of E. …
Serologic Testing For Human Granulocytic Ehrlichiosis At A National Referral Center, James A. Comer, William L. Nicholson, James G. Olson, James E. Childs
Serologic Testing For Human Granulocytic Ehrlichiosis At A National Referral Center, James A. Comer, William L. Nicholson, James G. Olson, James E. Childs
Zoonotics and Wildlife Disease: Publications
An indirect immunofluorescence assay (IFA) was used to identify patients with antibodies reactive to the human granulocytic ehrlichiosis (HGE) agent. Serum samples collected from clinically ill individuals were submitted to the Centers for Disease Control and Prevention by physicians via state health departments from throughout the United States and tested against a panel of ehrlichial and rickettsial pathogens. Antibodies reactive to the HGE agent were detected in 142 (8.9%) of 1,602 individuals tested. There were 19 confirmed and 59 probable (n = 78) cases of HGE as defined by seroconversion or a fourfold or higher titer to the HGE agent …
Report Of The Poplar Working Group, Steve Strauss
Report Of The Poplar Working Group, Steve Strauss
United States Department of Energy: Publications
Poplars consist of all species of the genus Populus, including cottonwoods, aspens, and the many interspecies hybrids in common use (Dickmann and Stuart 1983). Our working group focused on the fungal pathogens, arthropod herbivores, and weed competitors of Populus in the United States. However, bacterial and viral diseases of Populus are significant in Europe, and genetic engineering approaches toward their control or management are being studied. The key aspects of poplar biology important to understanding the use of pest resistance genes are described below.
Metal Oxide Surfaces And Their Interactions With Aqueous Solutions And Microbial Organisms, Gordon E. Brown Jr., Victor Henrich, William Casey, David Clark, Carrick Eggleston, Andrew Felmy Andrew Felmy, D. Wayne Goodman, Michael Gratzel, Gary Maciel, Maureen I. Mccarthy, Kenneth H. Nealson, Dimitri Sverjensky, Michael Toney, John M. Zachara
Metal Oxide Surfaces And Their Interactions With Aqueous Solutions And Microbial Organisms, Gordon E. Brown Jr., Victor Henrich, William Casey, David Clark, Carrick Eggleston, Andrew Felmy Andrew Felmy, D. Wayne Goodman, Michael Gratzel, Gary Maciel, Maureen I. Mccarthy, Kenneth H. Nealson, Dimitri Sverjensky, Michael Toney, John M. Zachara
United States Department of Energy: Publications
During the past decade, interest in chemical reactions occurring at metal oxide-aqueous solution interfaces has increased significantly because of their importance in a variety of fields, including atmospheric chemistry, heterogeneous catalysis and photocatalysis, chemical sensing, corrosion science, environmental chemistry and geochemistry, metallurgy and ore beneficiation, metal oxide crystal growth, soil science, semiconductor manufacturing and cleaning, and tribology. The metal oxide-aqueous solution interface is reactive due to acid-base, ligand-exchange, and/or redox chemistry involving protons (hydronium ions), hydroxyl groups, aqueous metal ions, and aqueous organic species and also complexes among these species. Interfacial localization of those species (adsorption) may result from electrostatic, …
Baleen Whales: Conservation Issues And The Status Of The Most Endangered Populations, Phillip Clapham, Sharon Young, Robert L. Brownell Jr.
Baleen Whales: Conservation Issues And The Status Of The Most Endangered Populations, Phillip Clapham, Sharon Young, Robert L. Brownell Jr.
United States Department of Commerce: Staff Publications
Most species of baleen whales were subject to intensive overexploitation by commercial whaling in this and previous centuries, and many populations were reduced to small fractions of their original sizes. Here, we review the status of baleen whale stocks, with an emphasis on those that are known or thought to be critically endangered. Current data suggest that, of the various threats potentially affecting baleen whales, only entanglement in fishing gear and ship strikes may be significant at the population level, and then only in those populations which are already at critically low abundance. The impact of some problems (vessel harassment, …
Hunting And Social Behaviour Of Leopard Seals (Hydrurga Leptonyx) At Seal Island, South Shetland Islands, Antarctica, Lisa M. Hiruki, Michael K. Schwartz, Peter L. Boveng
Hunting And Social Behaviour Of Leopard Seals (Hydrurga Leptonyx) At Seal Island, South Shetland Islands, Antarctica, Lisa M. Hiruki, Michael K. Schwartz, Peter L. Boveng
United States Department of Commerce: Staff Publications
The hunting behavior of leopard seals Hydrurga leptonyx was monitored opportunistically at Seal Island, South Shetland Islands, during the austral summers from 1986/87 to 1994/95. Leopard seals used several methods to catch Antarctic fur seal pups Arctocephalus gazella and chinstrap penguins Pygoscelis antarctica, and individuals showed different hunting styles and hunting success. One to two leopard seals per year were responsible for an average of 60% of observed captures of fur seal pups. Leopard seals preyed on penguins throughout the summer, but preyed on fur seal pups only between late December and mid-February. Hunting behavior differed significantly between different …
Sensitivity Of Fish Embryos To Weathered Crude Oil: Part Ii. Increased Mortality Of Pink Salmon (Oncorhynchus Gorbuscha) Embryos Incubating Downstream From Weathered Exxon Valdez Crude Oil, Ron A. Heintz, Jeffrey W. Short, Stanley D. Rice
Sensitivity Of Fish Embryos To Weathered Crude Oil: Part Ii. Increased Mortality Of Pink Salmon (Oncorhynchus Gorbuscha) Embryos Incubating Downstream From Weathered Exxon Valdez Crude Oil, Ron A. Heintz, Jeffrey W. Short, Stanley D. Rice
United States Department of Commerce: Staff Publications
We incubated pink salmon embryos under three exposure conditions, direct contact with oil-coated gravel, effluent from oil-coated gravel, and direct contact with gravel coated with very weathered oil (VWO). Embryo mortalities and polynuclear aromatic hydrocarbon (PAH) accumulation in embryo tissues during the direct-contact and effluent exposure experiments were not significantly different, indicating that PAH accumulation was mediated by aqueous transport. Mortality rates for embryos exposed initially to a total PAH concentration (TPAH) of 1.0 ppb were significantly higher than controls when the PAH were derived from VWO. The same aqueous TPAH concentration failed to increase mortality rates when the PAH …
Bacterial Toxins: Friends Or Foes?, Clare K. Schmitt, Karen C. Meysick, Alison D. O'Brien
Bacterial Toxins: Friends Or Foes?, Clare K. Schmitt, Karen C. Meysick, Alison D. O'Brien
Uniformed Services University of the Health Sciences
Many emerging and reemerging bacterial pathogens synthesize toxins that serve as primary virulence factors. We highlight seven bacterial toxins produced by well-established or newly emergent pathogenic microbes. These toxins, which affect eukaryotic cells by a variety of means, include Staphylococcus aureus α-toxin, Shiga toxin, cytotoxic necrotizing factor type 1, Escherichia coli heat-stable toxin, botulinum and tetanus neurotoxins, and S. aureus toxic-shock syndrome toxin. For each, we discuss the information available on its synthesis and structure, mode of action, and contribution to virulence. We also review the role certain toxins have played in unraveling signal pathways in eukaryotic cells and summarize …
Areas Susceptible To Irrigation-Induced Selenium Contamination Of Water And Biota In The Western United States, Ralph L. Seiler, Joseph P. Skorupa, Lorri A. Peltz
Areas Susceptible To Irrigation-Induced Selenium Contamination Of Water And Biota In The Western United States, Ralph L. Seiler, Joseph P. Skorupa, Lorri A. Peltz
United States Geological Survey: Publications
The U.S. Department of the Interior (DOI) studied contamination induced by irrigation drainage in 26 areas of the Western United States during 1986–95. Comprehensive compilation, synthesis, and evaluation of the data resulting from these studies were initiated by DOI in 1992. Soils and ground water in irrigated areas of the West can contain high concentrations of selenium because of (1) residual selenium from the soil’s parent rock beneath irrigated land; (2) selenium derived from rocks in mountains upland from irrigated land by erosion and transport along local drainages, and (3) selenium brought into the area in surface water imported for …
Tws Wildlife Damage Management Working Group Newsletter: Winter 1999 - Volume 6(1)
Tws Wildlife Damage Management Working Group Newsletter: Winter 1999 - Volume 6(1)
TWS Wildlife Damage Management Working Group Newsletter
Forward -- Scott Craven; Next Edition Deadlines; 1999 Wildlife Damage Management Working Group Officers:; Tws 6th Annual Conference Working Group Sponsored Sessions; Proceedings Of The 18th Vertebrate Pest Conference Held March 2-5, 1998 In Costa Mesa, Ca Are Now Available; Announcing The Availability Of A New Publication And Video On Managing Urban Canada Geese; Wildlife Damage Management Around The World - Part 3; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter:Spring 1999 - Volume 6(2)
Tws Wildlife Damage Management Working Group Newsletter:Spring 1999 - Volume 6(2)
TWS Wildlife Damage Management Working Group Newsletter
Forward -- Scott Craven; 1999 Wildlife Damage Management Working Group Officers:; Contributors To This Issue; Wildlife Damage Management Around The World - Part 4; Wildlife Damage Management In Mexico; Next Edition Deadlines; Conditioned Food Avoidance For Predator Depredation Alert; Preliminary Program 6th Annual Conference * September 7-11, 1999; Tws 6th Annual Conference Working Group Sponsored Sessions; In Memory: William D. Fitzwater; Next Edition Deadlines; In Memoriam: Jack H. Berryman; A Wildlife Contraception Technical Review Committee; Call For Papers 19th Vertebrate Pest Conference; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter: Summer 1999 - Volume 6(3)
Tws Wildlife Damage Management Working Group Newsletter: Summer 1999 - Volume 6(3)
TWS Wildlife Damage Management Working Group Newsletter
Forward -- Scott Craven; Draft Agenda TWS Wildlife Damage Management Working Group; TWS 6th Annual Conference Working Group Sponsored Sessions; Preliminary Program 6th Annual Conference * September 7-11, 1999; TWS Nashville 2000 7th Annual Conference Of The Wildlife Society Nashville, Tennessee •September 12-16, 2000; An Empirical Model For Predicting Suburban Deer Populations; Application For Membership / The Wildlife Society
Tws Wildlife Damage Management Working Group Newsletter: Fall 1999 – Volume 6(4)
Tws Wildlife Damage Management Working Group Newsletter: Fall 1999 – Volume 6(4)
TWS Wildlife Damage Management Working Group Newsletter
Forward - Scott Craven; Minutes Of Tws’’ss Wildlife Damage Management Working Group 1999 Annual Meeting, Austin, Texas; A New Name And Format!!!!!!; 1999 Wildlife Damage Management Working Group Officers; Prospective Student; Wildlife Damage Conferences:: When,, Where,, And Why?; Stupid Pest Tricks -- ((Or What Your Best Extension Call Was All About)); The Electronics!!!!; WDAMAGE lListserv URBAN IPM llistserve; HDWILD listserv; FERALCAT Listserv The Prevention And Control Of Wildlife Damage Manual; NWCOA News ;Raccoon Roundworm Brochure; Beyond 2000:: Realiitiies Of Global Wolf Restoration;19th Vertebrate Pest Conference; Application for Membership / The Wildlife Society
Predation Of Artificial Ground Nests On White-Tailed Prairie Dog Colonies, Bruce W. Baker, Thomas R. Stanley, James A. Sedgwick
Predation Of Artificial Ground Nests On White-Tailed Prairie Dog Colonies, Bruce W. Baker, Thomas R. Stanley, James A. Sedgwick
United States Geological Survey: Staff Publications
Prairie dog (Cynomys spp.) colonies are unique to prairie and shrub-steppe landscapes. However, widespread eradication, habitat loss, and sylvatic plague (Yersinia pestis) have reduced their numbers by 98% since historical times. Birds associated with prairie dogs also are declining. Potential nest predators, such as coyotes (Canis latrans), swift foxes (Vulpes velox), and badgers (Taxidea taxus), may be attracted to colonies where a high concentration of prairie dogs serve as available prey. Increased abundance of small mammals, including prairie dogs, also may increase the risk of predation for birds nesting on colonies. …
Trace-Element Concentrations In Streambed Sediment Across The Conterminous United States, Karen Rice
Trace-Element Concentrations In Streambed Sediment Across The Conterminous United States, Karen Rice
United States Geological Survey: Staff Publications
Trace-element concentrations in 541 streambed-sediment samples collected from 20 study areas across the conterminous United States were examined as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. Sediment samples were sieved and the <63-μm fraction was retained for determination of total concentrations of trace elements. Aluminum, iron, titanium, and organic carbon were weakly or not at all correlated with the nine trace elements examined: arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, and zinc. Four different methods of accounting for background/ baseline concentrations were examined; however, normalization was not required because field sieving removed most of the background differences between samples. The sum of concentrations of trace elements characteristic of urban settings-copper, mercury, lead, and zinc-was well correlated with population density, nationwide. Median concentrations of seven trace elements (all nine examined except arsenic and selenium) were enriched in samples collected from urban settings relative to agricultural or forested settings. Forty-nine percent of the sites sampled in urban settings had concentrations of one or more trace elements that exceeded levels at which adverse biological effects could occur in aquatic biota.
Factors Related To The Recovery Of Subalpine Woodland On Mauna Kea, Hawaii, Steven C. Hess, Paul C. Banko, Gregory J. Brenner, James D. Jacobi
Factors Related To The Recovery Of Subalpine Woodland On Mauna Kea, Hawaii, Steven C. Hess, Paul C. Banko, Gregory J. Brenner, James D. Jacobi
United States Geological Survey: Staff Publications
We measured mature tree and sapling density, tree associations, crown size, age structure, recovery from ungulate browsing, and grass cover at four study sites in two types of subalpine woodland on Mauna Kea volcano, island of Hawaii. Beginning in 1981, introduced ungulates were reduced in number to allow regeneration of Sophora chrysophylla (mamane) in habitat supporting the endangered Hawaiian finch, Loxioides bailleui (palila). We found Sophora regeneration at all four study sites, but regeneration was higher in mixed species woodland with codominant Myoporum sandwicense (naio) than in areas where Sophora dominated. Regeneration of Myoporum was uniformly very low in comparison. …
Gender Differences In The Relationships Among Ses, Family History Of Alcohol Disorders And Alcohol Dependence, Geoffrey M. Curran, Scott F. Stoltenberg, Elizabeth M. Hill, Sharon A. Mudd, Frederic C. Blow, Robert A. Zucker
Gender Differences In The Relationships Among Ses, Family History Of Alcohol Disorders And Alcohol Dependence, Geoffrey M. Curran, Scott F. Stoltenberg, Elizabeth M. Hill, Sharon A. Mudd, Frederic C. Blow, Robert A. Zucker
Department of Psychology: Faculty Publications
Objective: Potential moderator and mediator roles of several measures of socioeconomic status (SES) were investigated for the relationship between a family history of alcoholism( FH) and alcohol dependence symptoms in adulthood. Method: These analyses were performed with a sample of 931 men and 385 women participating in studies at the Alcohol Research Center, University of Michigan. Hierarchical multiple regression equations were used to assess whether SES mediated and moderated relationships between FH and alcohol dependence symptoms. Results: In general, measures of SES (education, occupation, personal and household income) were more important predictors of alcohol dependence symptoms among men, while FH …