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Prostaglandin H Synthase Catalyzes The Oxidation Of 4-Chlorobiphenyl Metabolites, And The In Vivo Effects On Prostaglandin Production, Orarat Wangpradit 2011 University of Iowa

Prostaglandin H Synthase Catalyzes The Oxidation Of 4-Chlorobiphenyl Metabolites, And The In Vivo Effects On Prostaglandin Production, Orarat Wangpradit

Theses and Dissertations

Polychlorinated biphenyls (PCBs) exert a broad range of toxicity via both parent compounds and their metabolites. Our previous study showed that hydroquinone (H2Q) metabolites of PCBs act as cosubstrates for prostaglandin H synthase (PGHS), and are oxidized by this enzyme to corresponding quinones (Q). The goal of this thesis is to illuminate the PGHS-mediated toxicity of lower chlorinated PCBs. It is hypothesized that PGHS catalyzes two sequential one-electron oxidations of PCB-H2Q to semiquinone (SQ), and Q that interact with biomolecules, such as amino acids, glutathione (GSH), protein, and DNA. In addition, the oxidation of H2Q by PGHS results in an ...


Hermetic On-Farm Storage For Maize Weevil Control In East Africa, Ali Yakubu, Carl J. Bern, Joel R. Coats, Theodore B. Bailey 2011 Iowa State University

Hermetic On-Farm Storage For Maize Weevil Control In East Africa, Ali Yakubu, Carl J. Bern, Joel R. Coats, Theodore B. Bailey

Agricultural and Biosystems Engineering Publications

Maize (Zea mays L.) consumption makes up over half of daily caloric intake of persons in East Africa and adequate supply is necessary for food security for subsistence farmers, as well as for domestic stability. Hermetic post-harvest maize storage is an attractive non-chemical control strategy for maize weevil,Sitophilus zeamais (Motsch.), which is the principal cause of insect damage to stored maize grain. Laboratory experiments were conducted on instrumented hermetic and non-hermetic containers to measure effects of temperature (10 vs. 27°C) and maize moistures (6.3 to 16%) on maize weevil biology and mortality rate, and to quantify weevil ...


Kentucky Warbler (Vol. 87, No. 2), Kentucky Library Research Collections 2011 Western Kentucky University

Kentucky Warbler (Vol. 87, No. 2), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.


The Western Kentucky University Teaching Gardens: Landscape Design And Establishment Plan, Claudia Stetter 2011 Western Kentucky University

The Western Kentucky University Teaching Gardens: Landscape Design And Establishment Plan, Claudia Stetter

Masters Theses & Specialist Projects

The purpose of this thesis is to design a landscape plan for Teaching Gardens at the Western Kentucky University Agriculture Research and Education Center. The landscape plans were selected based upon the available 5.3 acres surrounding the greenhouse, vineyard, and Exposition Center. Planning included goals and objectives, analysis of the available site, landscape design plans, and connecting the Teaching Gardens to the current curriculum. This thesis also includes related areas to the development of Teaching Gardens such as: summary of courses with related topics to Teaching Gardens, programs that will be used throughout the community, and a listing of ...


Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft 2011 Western Kentucky University

Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft

Masters Theses & Specialist Projects

Understanding climatic impacts is important if we are to comprehend the relationship between climate and society. Weather phenomena can have environmental, economical, and social impacts. Drought is the natural hazard that affects people the most. It is also the most complex and least understood. There is no one universally accepted definition for drought which makes its examination difficult. Droughts’ duration is also difficult to determine because it has no clearly defined onset and end. Also, drought varies both geographically and temporally making uniform drought monitoring difficult. Since drought is difficult to monitor and access, drought impacts are often poorly documented ...


A Prevalence Study Of Southeast Origin Sale Barn Beef Cattle, Comingled In Warren County, Kentucky, Persistently Infected With Bovine Viral Diarrhea Virus, Including The Effects Of Season And Body Weight, Sarah Elizabeth Thomas 2011 Western Kentucky University

A Prevalence Study Of Southeast Origin Sale Barn Beef Cattle, Comingled In Warren County, Kentucky, Persistently Infected With Bovine Viral Diarrhea Virus, Including The Effects Of Season And Body Weight, Sarah Elizabeth Thomas

Masters Theses & Specialist Projects

Bovine viral diarrhea (BVD) is an economically important disease of cattle. Calves persistently infected (PI) with the bovine viral diarrhea virus (BVDV) are a powerful agent for spread of the virus. A total of 24,423 southeast origin beef cattle comingled at three Warren County, Kentucky locations were tested from November 2007 to June 2010 for PI BVDV. A total of 97 head tested positive for PI BVDV, giving an average overall prevalence of 0.397%.
Calves tested were subdivided into categories for additional calculations of dependence. A total of 8,910 were categorized by weight range upon testing (300-399 ...


First Microsatellites From Spodoptera Frugiperda (Lepidoptera: Noctuidae) And Their Potential Use For Population Genetics, R. S. Arias, Carlos A. Blanco, Maribel Portilla, Gordon L. Snodgrass, Brian E. Scheffler 2011 USDA-ARS MSA Genomics and Bioinformatics Research Unit

First Microsatellites From Spodoptera Frugiperda (Lepidoptera: Noctuidae) And Their Potential Use For Population Genetics, R. S. Arias, Carlos A. Blanco, Maribel Portilla, Gordon L. Snodgrass, Brian E. Scheffler

Publications from USDA-ARS / UNL Faculty

This is the first report of sequence-specific microsatellite markers (simple sequence repeats [SSRs]) of fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), an economically important pest of crops on the Americas.Weisolated 192 microsatellite markers by using pyrosequencing and screened 15 individuals from eight isofamilies collected from three geographical areas: Puerto Rico (PR), Texas (TX), and Mississippi (MS). Isofamilies resistant to Cry toxins from Bacillus thuringiensis (Berliner) (Bacillales: Bacillaceae) also were included. Cluster analysis was performed to determine the potential use of these SSRs in discriminating populations, and colonies were grouped with a reliability of 100% estimated by bootstrap ...


Comparison Of Whole-Genome Amplifications For Microsatellite Genotyping Of Rotylenchulus Reniformis, R. S. Arias, Salliana R. Stetina, Brian E. Scheffler 2011 USDA-ARS MSA Genomics and Bioinformatics Research Unit

Comparison Of Whole-Genome Amplifications For Microsatellite Genotyping Of Rotylenchulus Reniformis, R. S. Arias, Salliana R. Stetina, Brian E. Scheffler

Publications from USDA-ARS / UNL Faculty

Currently, a large number of microsatellites are available for Rotylenchulus reniformis (reniform nematode); however, two barriers exist for genotyping samples from different geographical areas. The limited amount of nucleic acids obtained from single nematodes which would require their multiplication to obtain enough DNA for testing; and the strictly regulated transport of live samples and multiplication in greenhouse for being a plant pathogen. Whole-genome amplification (WGA) of samples consisting of one and five dead gravid females with their associated egg masses was successfully performed on disrupted tissue using three commercial kits. DNA yield after WGA ranged from 0.5 to 8 ...


Sensory Evaluations Of Usda Select Strip Loin Steaks Enhanced With Sodium And Potassium Phosphates And Usda Choice Strip Loin Steaks For Comparable Palatability Factors, Lindsey Reynolds 2011 Western Kentucky University

Sensory Evaluations Of Usda Select Strip Loin Steaks Enhanced With Sodium And Potassium Phosphates And Usda Choice Strip Loin Steaks For Comparable Palatability Factors, Lindsey Reynolds

Masters Theses & Specialist Projects

The cyclic nature of the beef industry is dependent on the supply and demand transaction initiated by consumers’ acceptability of quality meat products. When purchasing beef at the grocery store, consumers are dependent on USDA grades and visual appraisal; consumers expect consistency in products. Upon this appraisal, quality is determined by the color, marbling content, and texture of a particular retail cut, as well as cooked characteristics of tenderness, flavor, and juiciness. Variability in meat tenderness is a major quality defect of beef (Morgan et al., 1991b; Smith et al., 1992). A common practice used by beef processors to extend ...


The Effects Of Multispecies Grazing On Pasture Management And Utilization, Chelsea Williams 2011 Western Kentucky University

The Effects Of Multispecies Grazing On Pasture Management And Utilization, Chelsea Williams

Masters Theses & Specialist Projects

Multispecies grazing research was conducted using meat-type goats (Capra hircus L.) and Jersey heifers (Bos taurus L.) to determine the relationships between multiple grazing treatments and pasture utilization. The study was conducted for 60 days on the Western Kentucky University Farm in Bowling Green, KY. Cattle and goats have shown to differ in grazing preferences and to be economically important to the area. Grazing treatments included goats and cattle grazing simultaneously, sequentially, and goats grazing alone. A typical established Kentucky pasture was utilized with no weed management practices employed. Predominant forage species included tall fescue (Festuca arundinacea Schreb.), orchardgrass (Dactylis ...


Effects Of Regional Cold Fronts And Localized Weather Phenomena On Autumn Migration Of Raptors And Landbirds In Southwest Idaho, Robert A. Miller, Jay D. Carlisle, Gregory S. Kaltenecker 2011 Boise State University

Effects Of Regional Cold Fronts And Localized Weather Phenomena On Autumn Migration Of Raptors And Landbirds In Southwest Idaho, Robert A. Miller, Jay D. Carlisle, Gregory S. Kaltenecker

Intermountain Bird Observatory Publications and Presentations

Weather has a significant effect on avian migration, but whether the influence is similar across diverse geographic regions and across all species remains to be determined. We evaluated the effect of regional cold fronts and localized weather phenomena on the timing of autumn migration of multiple species of landbirds and raptors in southwest Idaho. The focus of the analysis was on total landbirds and the ten most common landbird species, along with total raptors and the eight most common raptor species. Using 13 years of data from the Idaho Bird Observatory in southwest Idaho (1997–2009), including standardized mist-net captures ...


Knowledge And Beliefs Among Health Care Workers Regarding Hepatitis B Infection And Needle Stick Injuries At A Tertiary Care Hospital, Karachi, Faiza Habib, Durreshahwar K Khan, Shan-E Abbas, Faiza Bhatti, Afia Zafar 2011 Aga Khan University

Knowledge And Beliefs Among Health Care Workers Regarding Hepatitis B Infection And Needle Stick Injuries At A Tertiary Care Hospital, Karachi, Faiza Habib, Durreshahwar K Khan, Shan-E Abbas, Faiza Bhatti, Afia Zafar

Department of Pathology and Laboratory Medicine

Hepatitis B virus (HBV) infection is a recognized occupational risk for health care workers (HCWs). This study aimed to assess the knowledge and beliefs of HCWs regarding HBV transmission and needle stick injuries (NSIs). A cross-sectional questionnaire based KAP study was conducted at Civil Hospital, Karachi, during the period of January to September 2006. HCWs were inquired about possible modes of HBV transmission and association with NSIs. Data were entered using EpiInfo 6.04d software. Statistical analysis was performed using SPSS 12.5 software. A total of 343 HCWs participated, and those answered at least 5 correct modes of HBV ...


An Investigation Of Stratigraphic Evidence For An Abrupt Climatic Event 8200 Yr Bp In Valle De Las Morrenas, Costa Rica, Brian Thomas Watson 2011 University of Tennessee - Knoxville

An Investigation Of Stratigraphic Evidence For An Abrupt Climatic Event 8200 Yr Bp In Valle De Las Morrenas, Costa Rica, Brian Thomas Watson

Masters Theses

Lago de las Morrenas 4 (9.498056° [degrees] N, 83.486111° [degrees] W, 3466 m elev.) is the lowest lake in a chain of glacial lakes located in the Valle de las Morrenas, a valley facing almost due north from Cerro Chirripó, the highest peak in the Cordillera de Talamanca in Costa Rica. Coarse resolution analyses of pollen, microscopic charcoal, and loss-on-ignition of a ca. 10,000 year sediment record from Lago de las Morrenas 4 was carried out to complement and extend previous research on the environmental history of the Chirripó highlands and to provide context for high-resolution sampling ...


The High Cost Of Cheap Coal; Why Can't We Move To Renewable Energy, Cameron Dale Bartlett 2011 Utah State University

The High Cost Of Cheap Coal; Why Can't We Move To Renewable Energy, Cameron Dale Bartlett

Undergraduate Honors Capstone Projects

This article addresses the historic and current use of coal as the main source of electric power throughout the United States. Coal powered power plants remain an important part of the history and industrialization of the United States, even though there are many detrimental health and environmental impacts associated with its use. A slowly growing trend has been emerging with research on and use of renewable energy to replace fossil fuels, such as coal. Greater public awareness and involvement will help drive the slowly emerging use of renewable energy. This article looks at the current barriers that are prohibiting the ...


Application Of Habitat And Occupancy Modeling To A Wood Duck Next Box Program, Jason D. Carlisle 2011 Utah State University

Application Of Habitat And Occupancy Modeling To A Wood Duck Next Box Program, Jason D. Carlisle

Undergraduate Honors Capstone Projects

Programs to augment wood duck (Aix sponsa) nesting habitat by providing artificial nest boxes are commonly implemented. In northern Utah, where such programs are relatively new, I proposed a method to identify sites suitable for deployment of next boxes through a combination of habitat and occupancy modeling using site-specific, biotic, and abiotic, data collected from 105 next boxes over one nesting season in Cache County, Utah. An inductive habitat model was first developed which identified possibly suitable habitat (8.74% of county) based on proximity to hydrologic features. Next, based on comparing competing single-species, single-season, occupancy models using a modified ...


Host And Distribution Lists Of Chiggers (Trombiculidae And Leeuwenhoekiidae), Of North American Wild Vertebrates North Of Mexico, Brianne L. Walters, John O. Whitaker Jr., Nicholas S. Gikas, William J. Wrenn 2011 Indiana State University

Host And Distribution Lists Of Chiggers (Trombiculidae And Leeuwenhoekiidae), Of North American Wild Vertebrates North Of Mexico, Brianne L. Walters, John O. Whitaker Jr., Nicholas S. Gikas, William J. Wrenn

Faculty Publications from the Harold W. Manter Laboratory of Parasitology

Information concerning chiggers found on wild vertebrates of North America north of Mexico is summarized. Included are lists a) of the chiggers organized taxonomically, b) hosts from which each species has been reported, and c) states and provinces with references for each separate record


Phylogenetic Diversification Of The Globin Gene Superfamily In Chordates, Jay F. Storz, Juan C. Opazo, Federico G. Hoffmann 2011 University of Nebraska-Lincoln

Phylogenetic Diversification Of The Globin Gene Superfamily In Chordates, Jay F. Storz, Juan C. Opazo, Federico G. Hoffmann

Jay F. Storz Publications

Phylogenetic reconstructions provide a means of inferring the branching relationships among members of multigene families that have diversified via successive rounds of gene duplication and divergence. Such reconstructions can illuminate the pathways by which particular expression patterns and protein functions evolved. For example, phylogenetic analyses can reveal cases in which similar expression patterns or functional properties evolved independently in different lineages, either through convergence, parallelism, or evolutionary reversals. The purpose of this article is to provide a robust phylogenetic framework for interpreting experimental data and for generating hypotheses about the functional evolution of globin proteins in chordate animals. To do ...


Protein Structure – Based Method For Identification Of Horizontal Gene Transfer In Bacteria, Swetha Billa 2011 University of Nebraska-Lincoln

Protein Structure – Based Method For Identification Of Horizontal Gene Transfer In Bacteria, Swetha Billa

Computer Science and Engineering: Theses, Dissertations, and Student Research

Horizontal Gene Transfer is defined as the movement of genetic material from one strain of species to another. Bacteria, being an asexual organism were always believed to transfer genes vertically. But recent studies provide evidence that shows bacteria can also transfer genes horizontally.

HGT plays a major role in evolution and medicine. It is the major contributor in bacterial evolution, enabling species to acquire genes to adapt to the new environments. Bacteria are also believed to develop drug resistance to antibiotics through the phenomenon of HGT. Therefore further study of HGT and its implications is necessary to understand the effects ...


Effects Of Feeding High Levels Of Wet Distillers Grains And Straw On Beef Quality, Siroj Pokharel 2011 University of Nebraska - Lincoln

Effects Of Feeding High Levels Of Wet Distillers Grains And Straw On Beef Quality, Siroj Pokharel

Theses and Dissertations in Animal Science

This research was conducted to investigate the effects of feeding high levels of wet distillers grains plus solubles (WDGS) with straw on fatty acids profiles, lipid stability, retail color, and proximate composition (fats and moisture) of aged beef. Cattle (n = 336; 270 ± 9 kg) were fed corn/5% straw; 40 Distillers grain (WDGS)/5% straw; 70 WDGS/8% straw; 70 WDGS/25% straw; 77.5 WDGS/9% straw; 77.5 WDGS/17% straw, and 85 WDGS/10% straw on dry matter (DM) basis. There were significant increases in the proportions of polyunsaturated fatty acids (PUFA), omega 6, omega 3, and ...


Assessing The Stability, Biological Transfer And Developmental Impact Of Environmentally Relevant Nitrosamines Using A Chicken Egg Model, Nikita Joshi 2011 University of Nebraska – Lincoln

Assessing The Stability, Biological Transfer And Developmental Impact Of Environmentally Relevant Nitrosamines Using A Chicken Egg Model, Nikita Joshi

Toxicology Program Dissertations & Theses

Nitrosamines comprise a large group of potentially toxic compounds occurring in the environment as by-products of various manufacturing, agricultural and natural processes. Nitrosamines are produced from reaction of nitrite with a suitable secondary amine in an acidic matrix; these acidic conditions can occur in environmental media and in the mammalian gastrointestinal (GI) tract. This research focused on the stability, transfer, and impacts of the environmentally relevant nitrosamines, N-nitrosodimethylamine (NDMA), N-nitrosmorpholine (NMOR), and N-nitrosoatrazine (NNAT) (formed from reaction of nitrite with dimethylamine, morpholine, and atrazine), using the chicken egg and embryo model systems. Chicken eggs were used to ...


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