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Avian Feeding Guild Diversity In Sun-Grown And Shade-Grown Coffee Farms In San Luis Valley, Monteverde, Costa Rica, 2006, Anna Richey, Toria Waldron

Monteverde Institute: Tropical Ecology and Conservation

Three coffee farms were studied to determine avian feeding guild diversity differences between sun-grown and shade-grown plots in San Luis Valley, Monteverde, Costa Rica. Sun-grown and shade-grown plots were observed on three coffee farms, species were identified by sight, and separated into feeding guilds. Using the Shannon-Weiner Diversity Index, we found a significantly greater overall avian diversity in sun-grown plots (Modified t-test, t= -4.00, df = 267.36). We also found no significant difference in feeding guild diversity between sun-grown and shade-grown plots, but found a significant difference within insectivorous and omnivorous feeding guilds supporting greater diversity in the sun-grown plots …

[Macrofungal Abundance And Distribution During The Wet Season In Monteverde, Costa Rica--Supporting Materials--Additions To The Database Of Fungi At The Estación Biológica De Monteverde], August 2006, Jason Prior, Matthew Prior

Monteverde Institute: Tropical Ecology and Conservation

Includes morphological and taxonomic keys to newly identified fungi that were collected around the Biological Station in Monteverde in the summer of 2006, an alphabetical species list and a family and species list of the newly identified fungi, and the data sheets and images of each newly identified fungus.

Water Solubility Characteristics Of Hydrophobically Modified Polyethyleneimines, Jennifer N. Williams

Browse all Theses and Dissertations

Commercially available polyethyleneimines varying in molecular weights and viscosities were synthetically modified in order to increase their hydrophobicity when dissolved in water. Used as additives for inkjet industry inks, these polymers have been designed to promote interaction between formulated inks and paper, while increasing the water-fastness of these water-soluble inks once they are dried on bond paper. Waterfastness, the ability of an ink to maintain print integrity once it becomes wet, as well as optical density, solubility, pH, molecular weight, polydispersity and viscosity are amongst the characteristics analyzed. The modifications of these polyethyleneimines (PEis) with alkyl bromides and alkyl epoxides …

Arsenic Exposure Is Associated With Decreased Dna Repair In Vitro And In Individuals Exposed To Drinking Water Arsenic, Angeline S. Andrew, Jefferey L. Burgess, Maria M. Meza, Eugene Demidenko, Mary G. Waugh, Joshua W. Hamilton, Margaret R. Karagas

Dartmouth Scholarship

The mechanism(s) by which arsenic exposure contributes to human cancer risk is unknown; however, several indirect cocarcinogenesis mechanisms have been proposed. Many studies support the role of As in altering one or more DNA repair processes. In the present study we used individual-level exposure data and biologic samples to investigate the effects of As exposure on nucleotide excision repair in two study populations, focusing on the excision repair cross-complement 1 (ERCC1) component. We measured drinking water, urinary, or toenail As levels and obtained cryopreserved lymphocytes of a subset of individuals enrolled in epidemiologic studies in New Hampshire (USA) and Sonora …

Evolutionary Psychology: A Critique, David J. Buller

Faculty Books & Book Chapters

No abstract provided.

Design And Manufacturing Of Functionally Graded Materials With Polymer Chain And Nano-Reinforcement Orientation For Compressive Applications, Sanjay Varma Kalidindi

Theses and Dissertations - UTB/UTPA

Functionally Graded Materials for compressive applications were designed and manufactured by tailoring the properties of Pure Polyethylene (PE) and Vapor Grown Carbon Nanofiber (VGCNF) Reinforced PE Composites. Properties of NRPC have been extensively studied. Properties are dependent on parameters such as the reinforcement/matrix interaction; reinforcement volume fraction, orientation, dispersion, and packing, and the final matrix microstructure. However, there is limited literature on their properties under compression loading. Compression strength studies for high density PE reinforced with VGCNF for different fiber volume fraction (0%, 5%, 10% and 15%) were carried out. The role of interface and alignment was studied. Samples were …

Another Shade Of Brown: A Historical Study Of “Brown V. Board Of Education” And Its Impact On The Education Of Mexican Americans In Edinburg, Texas In The Rio Grande Valley Of South Texas, Beverly F. Ashley-Fridie

Theses and Dissertations - UTB/UTPA

The decision of Brown v. Board of Education to desegregate schools in the United States fifty-two years ago was approached with hesitation by many school districts. For half of those fifty-two years, school desegregation proceeded at a snail's pace in southern and northern school districts as civil rights lawyers waged trench warfare in federal courts. Even though it was "law," many school districts ignored the mandate or suffered from the "with all deliberate speed" syndrome. The focus of this study was to investigate the educational segregation and desegregation of students in the Edinburg Consolidated Independent School District (ECISD).

In this …

Motor Vehicle Collisions With Large Animals, Masoud O. Bashir, Fikri M. Abu-Zidan

Saudi Medical Journal

Motor vehicle collisions MVC with large animals are a worldwide problem. In this review, we aim to analyze the mechanisms and patterns of human injuries caused by MVC with large animals and various ways to prevent them. Reported studies on large animals that can cause such accidents include the moose, camels, deer, and kangaroos. The moose causes a typical rear-and downward deformity of the roof of the car. The camel falls on the roof of the car causing cervical and head injury to the occupants. Injuries caused by kangaroos and deer are usually mild. Injuries may be caused by direct …

Determination Of Fungal Frequency And Comparison Of Allergic Symptoms Related With Buildings And Fungi In Afyon, Turkey, Ayse Orman, Elif Korcan, Muhsin Konuk, Emel Kurt, Dilek Toprak, Alaaddin Ay

Saudi Medical Journal

OBJECTIVE: To investigate the respiratory symptoms and atopic sensitization to fungi and its relation with the building type where school children were attending. We also compared the prevalence of sensitization to different fungi and respiratory symptoms in 2 different school buildings in a particular area of Turkey. METHODS: Using simple random sampling, 301 school children aged 16-19 years attending a high school in 2 different school buildings (old and new buildings) were recruited and agreed to participate in the study. The study was conducted in Afyonkarahisar, Turkey from August 2003 to August 2004. Information on allergic diseases, building related symptoms …

Influences Of Watershed Urban Development On Habitat Heterogeneity And Native Fish Diversity In A Ridge And Valley Stream In Southeastern Tennessee, Nicholas B. Cookson

Masters Theses and Doctoral Dissertations

The present study examined relationships of landscape features with instream environmental conditions and fish assemblage attributes in a third-order Ridge and Valley stream in the Chattanooga, Tennessee area. Stream water quality, habitat, and fish assemblages were sampled in May-June 2005 at seven sites (drainage areas <17 km2) in the Mountain Creek system (Tennessee River drainage). Watershed urban land use (predominantly residential) ranged from 1.62 % to 18.97 % and housing density from 49 housing units/km2 to 72 housing units/km2. Natural riparian land cover at the sites ranged from 26.9 % to 53.1 %. A total of22 species offish and 3,686 individuals was found at the seven sites. Native species richness per drainage area ranged from 0.12 species/km2 to 1.15 species/km2 at the individual sites. Species evenness ranged from 0.56 to 0.79. Index of biotic integrity ratings varied from poor to good. Watershed urban land use was negatively correlated with species richness, species evenness, variation in stream shape, and variation in current velocity. Housing density in the watershed was positively correlated with sediment depth and negatively correlated with species richness, substrate diversity, and variation in stream shape. Riparian natural cover was positively correlated with variation in current velocity. Results of this study emphasize the negative influence of watershed residential land use on stream habitat heterogeneity and native fish diversity.

Genetic Considerations For The Conservation And Management Of Yellowstone Cutthroat Trout (Oncorhynchus Clarkii Bouvieri) In Yellowstone National Park, David J. Janetski

Theses and Dissertations

A key component to conservation is an accurate understanding of genetic subdivision within a species. Despite their ecological and economic importance, relatively little is understood about the genetic structuring of Yellowstone cutthroat trout in Yellowstone National Park. Here, we use traditional (Fst, Rst, Nm, and AMOVA) and modern (Bayesian assignment tests, coalescent theory, and nested clade analysis) analytical approaches to describe the population genetic subdivision of cutthroat trout spawning populations in Yellowstone Lake and to identify genetically distinct population segments throughout Yellowstone National Park. Evidence for restricted gene flow between spawning populations within Yellowstone Lake was detected using nested clade …

Cold Climate In The Eastern Australian Mid- To Late Permian May Reflect Cold Upwelling Waters, Andrew T. Jones, Tracy D. Frank, Christopher R. Fielding

Department of Earth and Atmospheric Sciences: Faculty Publications

A suite of ice-rafted dropstones and glendonites throughout the Permian succession of eastern Australia indicates the cold climate associated with the late Paleozoic ice age persisted longest in this part of Gondwana. Paradoxically, these cold climate indicators are preserved in transgressive and highstand facies and formed at mid to high latitudes at a time when paleofloral and sedimentological data suggest equable onshore environments during the intervening lowstands and temperate conditions at the pole. These apparent inconsistencies suggest that eastern Australia was anomalously cold in the context of post-Sakmarian Gondwanan climates, and the distribution of sedimentary indicators could indicate localized cooling …

Susceptibility Of Greater Sage-Grouse To Experimental Infection With West Nile Virus, Larry Clark, Jeffrey Hall, Robert Mclean, Michael Dunbar, Kaci Klenk, Richard Bowen, Cynthia A. Smeraski

United States Department of Agriculture Wildlife Services: Staff Publications

Populations of greater sage-grouse (Centrocercus urophasianus) have declined 45– 80% in North America since 1950. Although much of this decline has been attributed to habitat loss, recent field studies have indicated that West Nile virus (WNV) has had a significant negative impact on local populations of grouse. We confirm the susceptibility of greater sage-grouse to WNV infection in laboratory experimental studies. Grouse were challenged by subcutaneous injection of WNV (103.2 plaque-forming units [PFUs]). All grouse died within 6 days of infection. The Kaplan-Meier estimate for 50% survival was 4.5 days. Mean peak viremia for nonvaccinated birds was 106.4 PFUs/ml (6100.2 …

A Simulation Model For Determining Cost-Effectiveness Of Fences For Reducing Deer Damage, Kurt C. Vercauteren, Michael J. Lavelle, Scott E. Hygnstrom

United States Department of Agriculture Wildlife Services: Staff Publications

The installation of fences to protect agricultural products, natural resources, or other areas from deer (Odocoileus spp.) can be expensive and potential benefits of fencing are difficult to quantify. A rational method is needed to help evaluate whether fencing can be cost-effective and which fence designs will be optimal for particular applications. We describe an interactive, dynamic simulation model that conducts economic analyses and predicts economic benefit associated with fences for crops relative to area and perimeter of protected plot, value of crop, percentage of crop damaged by deer annually prior to fencing, efficacy of fence, and costs of fence …

Virion-Associated Restriction Endonucleases Of Chloroviruses, Irina V. Agarkova, David Dunigan, James L. Van Etten

Nebraska Center for Virology: Faculty Publications

Chloroviruses are large, double-stranded-DNA, plaque-forming viruses that infect certain eukaryotic chlorella- like green algae. The prototype of the genus is Paramecium bursaria chlorella virus 1 (PBCV-1). Chlorovirus genomes contain various amounts of methylated nucleotides due to virus-encoded DNA methyltransferases (MTases); about 25% of the MTases are associated with companion DNA site-specific (restriction) endonucleases (REases). These enzymes constitute virally encoded restriction-modification (R/M) systems. Although several of the chlorovirus R/M systems are characterized, their biological functions are unknown. The PBCV-1 proteome reveals that two virus-encoded REases, but not their companion MTases, are virion associated, suggesting that viral REases might help degrade the …

Vegetative Treatment Systems For Open Lot Runoff: Review Of Literature, Richard K. Koelsch, Jeffrey Lorimer, Kyle Mankin

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

Runoff from open lot livestock systems (beef and dairy) defined as Concentrated Animal Feeding Operations (CAFO) must be controlled by systems designed and managed to prevent the release of manure-contaminated runoff for storms equal to or less than a 25-year, 24-hour design storm. This performance standard has been attained for open lot systems with some combination of clean water diversion, settling basins, runoff collection ponds and irrigation systems (baseline system).

An alternative approach is to rely on overland flow and infiltration into cropland with perennial forage or grasses for treatment of open lot runoff. Such vegetative systems have been researched …

Comparison Of Antigenic Sites Of The Envelope Glycoprotein Of The Iranian Isolate Of Human T-Cell Leukemia Virus Type 1 With Different Subtypes Of The Virus, Hassan Mohabatkar, Sahar Sadeghi

Saudi Medical Journal

OBJECTIVE: Human T-cell leukemia virus type 1 (HTLV-1) is an enveloped retrovirus, which is associated with a T-cell malignancy known as adult T-cell leukemia (ATL). Variation in the HTLV-1 envelope nucleotide sequence has been extensively documented and has been used to classify HTLV-1 isolates into different subtypes. The virus occurs in at least 3 subtypes, which have been named A, B, and C. We conducted this study to compare the antigenic proprieties of the Iranian isolate of HTLV-1 with the homologous region of different subtypes of the virus. METHODS: This study took place in the Department of Biology, College of …

Development Of An Ultra Rapid And Simple Multiplex Polymerase Chain Reaction Technique For Detection Of Salmonella Typhi, Karami Ali, Ahmadi Zeynab, Safiri Zahra, Khalilpour Akbar, Morrovati Saeid

Saudi Medical Journal

OBJECTIVE: To make a rapid and definite diagnosis of Salmonella enteritis, using an ultra rapid multiplex polymerase chain reaction (PCR) detection method for major Salmonella serotypes, such as Salmonella typhi, Salmonella Typhimurium and Salmonella Havana. METHODS: We performed this study at the Research Center of Molecular Biology, Institute of Military Medicine, Bagyatallah University of Medical Sciences, Iran from June 2004 to July 2005. The PCR primers for tyv (rfbE), prt (rfbS) and invA genes were designed and used for the rapid identification of Salmonella enterica serovars Typhi and Paratyphi A with multiplex PCR. By using simple DNA extraction method in …

Seroprevalence Of Herpes Simplex Virus Types 1 And 2, Epstein-Barr Virus, And Cytomegalovirus In Children With Acute Lymphoblastic Leukemia In Egypt, Samah A. Loutfy, Mohamed F. Ibrahim, Mohamed M. Hafez

Saudi Medical Journal

OBJECTIVE: Viral infection, especially caused by herpes viruses, is now recognized as an important cause of morbidity and mortality in immunocompromised cancer patients. This study aimed at studying seroprevalence of 3 herpes viruses Herpes simplex virus types 1 and 2 (HSV 1 and 2), Epstein-Barr virus (EBV), and cytomegalovirus (CMV) in children with acute lymphoblastic leukemia (ALL). METHODS: We conducted this study on 68 newly diagnosed pediatric patients with ALL presented to the Pediatric Oncology Service of National Cancer Institute, Cairo University, Egypt from November 2001 to June 2003. We used enzyme-linked immunosorbent assay in detecting HSV 1 and 2, …

Reliability Of Vascularized Fibula In Maintaining Arthrodesis Following Extra-Articular Wide Excisions Of Malignant Musculoskeletal Tumors, Gursel Leblebicioglu

Saudi Medical Journal

OBJECTIVE: To evaluate the reliability of vascularized fibula transfer in maintaining arthrodesis following wide excision of malignant tumors located at the metaphyseal ends of long bones. METHODS: Fourteen patients underwent wide extra-articular excisions followed by arthrodesis with vascularized fibula and its variants at the Department of Orthopedic Surgery and Traumatology, University of Hacettepe Medical School, Ankara, Turkey, in the period from 1996 to 2003. There were 9 males and 5 females. Their mean age was 28 years (ranging 12-52 years). The mean follow-up time was 68 months (range 28-110 months). The most common diagnosis was malignant giant cell tumor (6), …

Congenital Factor X Deficiency Of Coagulation Revealed By Epistaxis, Samir Atmani, Rachid Aouragh, Kaltoum El-Alaoui, Abdelhak Bouharrou, Moustapha Hida

Saudi Medical Journal

No abstract provided.

Effects Of Erythropoietin On Fracture Healing In Rats, Murat Bozlar, Aydiner Kalaci, Bahadir Aslan, Lutfu Baktiroglu, Ahmet N. Yanat, Arzu Tasci

Saudi Medical Journal

No abstract provided.

Effects Of Moderate Alcohol Consumption On Serum Marker Enzymes Of Rabbits, M. Sabih Aktas, Ismail Celik

Saudi Medical Journal

No abstract provided.

A Study On Children And Adolescents With Disabilities In Kahramanmaras, Turkey, Lale Donbak, Mustafa Celik, Mustafa Celik, Ilter Demirhan

Saudi Medical Journal

No abstract provided.

Brucella Seropositivity In South And Southeast Turkey, Gurol Emekdas, Gonul Aslan, Seda Tezcan, Pinar Ciragil, Mehmet R. Bayraktar, Yusuf Onlen, Esin Aktas, Vusiat Bosnak, Arzu Kanik

Saudi Medical Journal

No abstract provided.

Trading Sex: Voluntary Or Coerced? The Experiences Of Homeless Youth, Kimberly A. Tyler, Katherine Johnson

Department of Sociology: Faculty Publications

This study examined the circumstances surrounding a homeless youth’s “decision” to trade sex for food, money, shelter, or drugs. Forty homeless youth in 4 Midwestern states participated in individual, in-depth qualitative interviews. Interviewers recruited youth through both service agencies and street outreach. The findings revealed that approximately one third of the sample had some experience with trading sex, whether it was in the form of having traded sex, having been propositioned to trade sex but having refused, or having friends or acquaintances that had traded sex. Young people ‘s reports indicated that they had traded sex for things they deemed …

Aspidoderidae From North America, With The Description Of A New Species Of Aspidodera (Nematoda: Heterakoidea), F. Agustin Jimenez-Ruiz, Scott Lyell Gardner, Andrea S. Varela-Stokes

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Aspidodera sogandaresi n. sp. (Heterakoidea: Aspidoderidae) from Dasypus novemcinctus Linnaeus, 1758 is herein described. This nematode occurs in armadillos from as far south as the canal zone of Panama, north through central Mexico, and into the southern United States. Previously identified as Aspidodera fasciata (Schneider, 1866), this new species has blunt projections on the lips and lateral expansions at the distal tips of the spicules, whereas A. fasciata has conspicuous digitiform projections on the lips, and a terminal round expansion at the tips of the spicules. Other species of the family present in North America include Aspidodera binansata Railliet and …

Isolation Of An Active Lv1 Gene From Cattle Indicates That Tripartite Motif Protein-Mediated Innate Immunity To Retroviral Infection Is Widespread Among Mammals, Laura M.J. Ylinen, Zuzana Keckesova, Benjamin L.J. Webb, Robert J.M. Gifford, Timothy P.L. Smith, Greg J. Towers

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Lv1/TRIM5α (tripartite motif 5α) has recently emerged as an important factor influencing species-specific permissivity to retroviral infection in a range of primates, including humans. Old World monkey TRIM5α blocks human immunodeficiency virus type 1 (HIV-1) infectivity, and the human and New World monkey TRIM5α proteins are inactive against HIV-1 but active against divergent murine (N-tropic murine leukemia virus [MLV-N]) and simian (simian immunodeficiency virus from rhesus macaque [SIVmac]) retroviruses, respectively. Here we demonstrate antiviral activity of the first nonprimate TRIM protein, from cattle, active against divergent retroviruses, including HIV-1. The number of closely related human TRIM sequences makes assignment of …

Attitudes And Perceptions Regarding Hypnosis Of North Dakota Certified Registered Nurse Anesthetists, Michelle L. Resler

Theses and Dissertations

The purpose of the study was to identify North Dakota certified registered nurse anesthetists’ (CRNAs) attitudes and perceptions of hypnosis and if they believe it would be realistic to use hypnosis in the surgical setting. A voluntary descriptive, cross sectional study design was used to obtain accurate and current information. The population of the study consisted of all the North Dakota CRNAs, who v/ere 2005-2006 members of the NDANA (North Dakota Association of Nurse Anesthetists); more than 90% of North Dakota CRNAs are members of NDANA. A current list of NDANA CRNAs was obtained (N=182). All current members were invited …

Implications Of Bismarck Public Schools Secondary Course Sequencing On Student Academic Achievement And Post Secondary Readiness, John M. Salwei

Theses and Dissertations

No abstract provided.