Digital Commons Network^™

Prebiotic Galactooligosaccharides Reduce Adherence Of Enteropathogenic Escherichia Coli To Tissue Culture Cells, Kari Schoaf, George L. Mulvey, Glen D. Armstrong, Robert W. Hutkins

Department of Food Science and Technology: Faculty Publications

Prebiotic oligosaccharides are thought to provide beneficial effects in the gastrointestinal tract of humans and animals by stimulating growth of selected members of the intestinal microflora. Another means by which prebiotic oligosaccharides may confer health benefits is via their antiadhesive activity. Specifically, these oligosaccharides may directly inhibit infections by enteric pathogens due to their ability to act as structural mimics of the pathogen binding sites that coat the surface of gastrointestinal epithelial cells. In this study, the ability of commercial prebiotics to inhibit attachment of microcolony-forming enteropathogenic Escherichia coli (EPEC) was investigated. The adherence of EPEC strain E2348/69 on HEp-2 …

Does Seed-Caching Experience Affect Spatial Memory Performance By Pinyon Jays?, B. Lucas Stafford, Russell P. Balda, Alan Kamil

Papers in Behavior in Biological Sciences

Food-storing birds use spatial memory to find previously cached food items. Throughout winter, pinyon jays (Gymnorhinus cyanocephalus) rely heavily on cached pinyon pine (Pinus edulis) seeds. Because of a recent severe drought, pinyon pine trees had not produced a significant seed crop for several years. Therefore, 1- and 2-year-old birds never had the opportunity to cache and recover seeds and birds 4 or more years of age had not recovered seeds in 3 years. This study examined whether natural but extreme variability in experience might result in differences in abstract spatial memory ability during a non-cache …

Protective Effect Of Black And Green Tea Against Carbon Tetrachloride-Induced Oxidative Stress In Rats, Khalid S. Almurshed

Saudi Medical Journal

OBJECTIVE: To assess the effects of green and black tea on carbon tetrachloride (CCl4)-induced oxidative stress in rats. METHODS: This study was completed in the period of January to April 2005. Male wistar albino rats (6 weeks old) were randomly assigned to one of 3 diets (12 rats/group), control diet, black tea diet, or green tea diet. At the end of dietary treatment, a single dose of CCl4 (2.5 ml/kg intraperitoneally) in paraffin (1:1 v/v) was given to 6 rats in each group after overnight fasting. The remaining 6 rats of each group received the same amount of paraffin only …

Diphyllobothriasis In Saudi Arabia, Ibrahim S. Alkhalife, Rafiaa R. Hassan, Ahmed A. Abdel-Hameed, Laila A. Al-Khayal

Saudi Medical Journal

We described a Saudi patient infected with Diphyllobothrium latum D. latum. A 38-year-old male presented, complaining of passing worms. He had a history of recent travel to Europe and South East Asia. Stools examination revealed typical D. latum eggs. He was treated with praziquantel followed by saline purge, after which he discharged an intact tapeworm. Macroscopic and microscopic examinations of the worm confirmed the diagnosis of D. latum. This is the first case of diphyllobothriasis to be reported in Saudi Arabia. The epidemiology and methods of prevention of diphyllobothriasis are discussed.

Karyotypes Of Eight Species Of Leptodactylus (Anura, Leptodactylidae) With A Description Of A New Karyotype For The Genus, Renata Cecília Amaro-Ghilardi, Gabriel Skuk, Rafael O. De Sá, Miguel Trefaut Rodrigues, Yatiyo Yonenaga-Yassuda

Biology Faculty Publications

Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus. Eight species of the Neotropical genus Leptodactylus were karyologically studied: seven of them (L. gracilis, L. mystacinus, L. petersii, L. pustulatus, L. macrosternum, L. ocellatus, L. labyrinthicus) presented 2n=22 and L. silvanimbus showed a distinctive karyotype with 2n=24. Nucleolar organizer regions (Ag-NORs) were detected in two different pairs of chromosomes: pair 4 at the proximal region of the long arm of one individual of L. mystacinus from São Paulo state and of L. petersii; and …

In This Apple For Teacher An Apple From Eve - Reanalyzing The Intelligent Design Debate From A Curricular Perspective, Mary Katherine Hackney

North Carolina Law Review

No abstract provided.

Art, The Social Enzyme: The Emergence Of An Art Community In The Rio Grande Valley, Heaven Lashley

Theses and Dissertations - UTB/UTPA

This study explores the emergence of an art community in the Rio Grande Valley (RGV) region of South Texas. In researching this objective, I relied on observations at many gallery public functions where I had the opportunity to observe the interactions between prospective buyers, gallery owners and artists. I also visited with gallery owners and artists many times in small group settings where I raised open ended questions about the region's artists and other historical developments that would allow me to put together a cohesive story about the emergence of the art community

This study began as an unstructured exploration …

“Let Every One Of Us Take His Gun And Put Himself In The Ranks”: The Louisiana Native Guard's Defiance Of Antebellum Ideas Of Gender And Race, 1861–1863, Jeremy B. Taylor

Theses and Dissertations - UTB/UTPA

The Louisiana Native Guards are an appropriate topic for the study of the relationship between gender and race in Civil War era America. After Louisiana seceded in 1861, free men of color from New Orleans began an odyssey that led them to fight on both sides of the conflict. They eventually became the first black regiment mustered into the United States military and the only one to have black officers.

This study will attempt to demonstrate how the men of the Louisiana Native Guard helped redefine the nineteenth century ideas of manliness. Through their soldiering these men demonstrated qualities associated …

Designing Web Sites For Customer Loyalty Across Business Domains: A Multilevel Analysis, S. Mithas, Narayanasamy Ramasubbu, M. S. Krishnan, C. Fornell

Research Collection School Of Computing and Information Systems

Web Sites are important components of Internet strategy for organizations. This paper develops a theoretical model for understanding the effect of Web site design elements on customer loyalty to a Web site. We show the relevance of the business domain of a Web site to gain a contextual understanding of relative importance of Web site design elements. We use a hierarchical linear modeling approach to model multilevel and cross-level interactions that have not been explicitly considered in previous research. By analyzing, data on more than 12,000 online customer surveys for 43 Web sites in several business domains, we find that …

The Distribution Of Lianas And Their Change In Abundance In Temperate Forests Over The Past 45 Years, Ronald A. Londre, Stefan A. Schnitzer

Biological Sciences Faculty Research and Publications

Lianas (woody vines) are an important and dynamic component of many forests throughout the world, and increases in CO₂, mean winter temperature, and forest fragmentation may promote their growth and proliferation in temperate forests. In this study, we used a 45‐year data set to test the hypothesis that lianas have increased in abundance and basal area in the interiors of 14 deciduous temperate forests in Wisconsin (USA) since 1959. We also censused woody plants along a gradient from the forest edge to the interior in seven of these forests to test the hypothesis that the abundance of lianas …

Rapid Isolation Of Dna From The Mucus Of Asian Arowana (Scleropages Formosus, Osteoglossidae), Nantarika Chansue

The Thai Journal of Veterinary Medicine

Owing to arowana being listed in CITES, DNA diagnostics should not rely on conventional methods of obtaining tissue samples. A non-invasive method of obtaining material containing DNA has been developed. Mucus samples for DNA isolation can be obtained by cotton swabbing the arowana body surface with subsequent purification of DNA fragments by using phenol/chloroform. DNA sample quality is assessed by UV absorbancy at wave lengths of 260 nm and 280 nm, as well as by calculating the absorbancy ratio involving 260 nm/280 nm results in order to determine DNA sample quality and quantity. Electrophoresis is employed to assess DNA quantity …

Genetically Modified Mosquitoes: A New Strategy To Control Mosquito Borne Diseases, Padet Siriyasatien, Usavadee Thavara

The Thai Journal of Veterinary Medicine

Mosquito borne diseases remain a major human and animal health concern in many areas of the world. Chemical control strategy faces a number of problems including the development of insecticide resistance in mosquitoes, the impact of insecticides on human and animal health and the environment and the constant inability to control mosquitoes effectively. Advances in the knowledge about mosquito-pathogen relationships and the molecular biology of mosquitoes make it now possible to produce mosquito strains that are unable to transmit various parasites or viruses. Strategies of using the genetically modified mosquitoes to control mosquito borne diseases are discussed here.

An Exploratory Look At The Four Addresses On Accounting In The 10th Edition Of John C. Colt's The Science Of Double Entry Bookkeeping, Richard Vangermeersch

Special Collections (Miscellaneous)

Four public addresses , written by convicted murder John C. Colt from about 1836 to 1841 have not been noted in the accounting history literature. This paper explores the importance of these addresses compiled in the 10th edition of The Science of double entry book keeping and brings them into current literature.

Challenging Gender Stereotypes In The Classroom: How Students Respond To "Dreamworlds", Angela Bailly

Theses and Dissertations

Students do not arrive in our classrooms as blank slates. When we, as Iructors, attempt to challenge them with a new wav of thinking about a topic, it's often difficult to know the impact of that exposure. It is even more difficult to cjliscover how students integrate the new information. This study explores the integration of Dreamworlds II: Desire/Sex/Power in Music Video into the lives of nineteen undergraduates. Dreamworlds II is a film concerning music videos and how they present images of women. It challenges the viewer to think about the cortsequences of these images and the alternatives that could …

Tic: Term Intersection Clustering Of Text Documents, Casey R. Bartman

Masters Theses

Preliminary work performed by the author [3] investigated the clustering of text documents based upon the Boolean intersection of document term sets. In that algorithm, documents were associated with terms and the resulting sets of terms were intersected. If the intersection of the sets produced a set equal to or larger than a predefined minimum support level, that new set was considered a relevant cluster. The algorithm’s first intersections were carried out at a three term level, allowing overlap of clusters at this level. Documents that were clustered were removed from further consideration and the process repeated at the two …

Autocad/Art: A Happy Medium, Christopher Grisby

Theses and Dissertations

Many artistic students struggle in computer-aided drafting (CADr) courses because they are unable to relate to the software and/or assignments, while technical students miss out on their own design and inventiveness because of the same software and assignments. This independent study is a project design with the purpose to demonstrate how AutoCAD® can be used as an artistic tool in creating two-dimensional portraits. Auto Desk's AutoCAD® is a standard program used in drafting courses to produce mechanical and architectural drawings. The specific goal of the study was to produce a practical model outlining the details of the AutoCAD@/art project so …

Genetic Resolution Of The Enigmatic Lesser Antillean Distribution Of The Frog Leptodactylus Validus (Anura, Leptodactylidae), Keneth Yanek, W. R. Heyer, Rafael O. De Sá

Biology Faculty Publications

Leptodactylus validus has an unusual distribution, inhabiting Trinidad, Tobago, and the Lesser Antilles, but not the mainland of South America. This distribution is inconsistent with other distribution patterns observed for these islands. Although slight variation in adult morphology has been observed among the different island populations of L. validus, call data suggest the presence of a single species. Calls of L. pallidirostris from Venezuela and Brazil suggested that this taxon might be conspecific with L. validus. Sequence data from the 12S and 16S mt rDNA genes indicate that L. validus represents a single species throughout its distribution and is conspecific …

A Comparison Of The Amely Gene Sequence In Argali (Ovis Ammon) And Domestic (Ovis Aries) Sheep, Kimberly Elwood

Undergraduate Honors Capstone Projects

Amelogenin (AMEL) is a gene responsible for tooth bud development. It is located on the X-chromosome, thus called AMELX, in mammals. AMEL has been shown to be present in fish, amphibians, and reptiles, though the exact location on the chromosome has not been determined. Amelogenin-like gene (AMELY), an AMEL homolog encoded on the Y-chromosome in some mammals, including sheep, cattle, deer, bears, humans, and some primates, is shorter than the sequence on the X-chromosome. It is unknown whether AMELY is transcriptionally active, but it has been found to be useful for human sexing purposes in forensics, archaeology and prenatal diagnosis, …

Outsiders As Innovators In The Life Sciences, Michael Dietrich

Dartmouth Scholarship

An introduction to the book Outsider Scientists: Routes to Innovation in Biology edited by Oren Harman and Michael Dietrich

Inefficient Customs In International Law, Eugene Kontorovich

William & Mary Law Review

This Article explores whether and when rules of customary international law (CIL) can be expected to be efficient. Customary rules are often regarded as desirable because in certain circumstances, they promote the welfare of the group in which they arise. Unless these circumstances apply among states, the efficiency arguments for the legalization of customary norms do not apply. The Article takes as its central observation the divergent treatment of custom in domestic and international law. In international law, if a customary behavior of states can be identified, it is automatically elevated to the status of legal obligation without any independent …

Moritz Busch's Die Mormonen And The Conversion Of Karl G. Maeser, A. Legrand Richards

BYU Studies

Karl G. Maeser’s contributions to the education of nineteenth-century Latter-day Saints had a profound impact on the history of Mormonism, an impact that has reverberated to today. The narrative surrounding Maeser’s conversion has been told and retold for over a century now in the enculturation of students into Brigham Young University’s heritage. This essay seeks to better understand and contextualize the events surrounding Maeser’s conversion and, more specifically, to discuss the text that was most influential in his conversion—the less-than-friendly Die Mormonen by Moritz Busch (1821–99).

Spatial And Seasonal Variation In Wildlife-Vehicle Collisions, Jonathan M. Conard, Philip S. Gipson

The Prairie Naturalist

To understand seasonal variation in the number of wildlife-vehicle collisions and the influence of land cover type on collision distribution we counted road-kill carcasses for 84 weeks along a 40 km route on two state highways in northeastern Kansas. We noted land cover type adjacent to each road-kill and tested the null hypothesis that road-kills were distributed randomly with respect to land cover type. Wildlife-vehicle collisions were not distributed randomly in relation to land cover availability. Instead, collisions occurred more often then expected adjacent to riparian areas and less often than expected adjacent to agricultural fields. Wildlife-vehicle collisions varied seasonally …

Amphibians And Reptiles In A Mixed-Grass Prairie In Northwestern North Dakota, Robert K. Murphy, Robert F. Danley, Patricia K. Moore

The Prairie Naturalist

There have been almost no surveys of herpetofauna at 109 km² Lostwood National Wildlife Refuge (LNWR) or surrounding counties in northwestern North Dakota, an area possibly undergoing significant environmental change from fossil fuel extraction and use. We used 30 m drift fences to survey amphibian and reptile species in prairie-wetland transition zones at LNWR during mid-May to early-July in 1985 to 1987, and again in 1999 and 2000. We captured only four amphibian and two reptilian species and noted one other reptilian species incidental to our survey. Several species expected to occur in the area were not detected.

Integration Of Art And Environmental Education: The Centro De Educación Creativa In Monteverde, Costa Rica, December 2006, Veronica Harried

Monteverde Institute: Tropical Ecology and Conservation

Population growth and deforestation are negatively affecting biodiversity in the Tropics, necessitating environmental education for local populations. Arts education increases the ability to comprehend complex information, enhance creativity and provide problem solving skills (Longley 1999, Siegesmund 1998). Together, environmental education and Arts education can enhance ecological processes and conservation themes in students’ minds so they are retained well into their adulthood. This increases the likelihood that these individuals will make environmentally informed decisions throughout their lives (Gurevitz 2000). In this project, I incorporate current Arts curriculum guidelines from the United States into the Costa Rican environmental curriculum used at the …

Changes In Bird Species Distribution In Four Altitudinal Zones In Monteverde, Costa Rica, December 2006, Grant Connette

Monteverde Institute: Tropical Ecology and Conservation

The impact of climate change on ecosystems has been demonstrated by studies of upper elevation amphibians (Pounds 1997). In spite of this, the degree to which climate change affects birds is not as clear. Two previous studies have found the upward movement of many species of birds in the Monteverde area (Donnelly 1998, Palm 2003). I surveyed birds in four altitudinal zones on the less studied Atlantic slope of the Monteverde Cloud Forest Preserve and compared my findings to the bird distributions reported by Michael Fogden in 1993. I found significant upward movement of bird species (sign test, p < 0.05) as well as a general decline in the abundances of certain bird species (x2 = 27.65, df = 3, p < 0.001). The majority of these declines are probably linked to the reforestation of the Peñas Blancas valley but climate change is likely responsible for the upslope movement and increased abundance of higher elevation birds.

Mosquitos Associated With Equine West Nile Virus Cases In Southeastern Georgia, Calvin William Hancock

College of Graduate Studies: Theses & Dissertations

Mosquito populations associated with equine and avian cases of West Nile Virus infections in five counties in southeastern Georgia were sampled in 2003 and 2004. More than 10,500 mosquitoes representing over 20 species were collected at 25 sites using light traps and vacuum aspirators. Of these, 8,500 mosquitoes were tested for the presence of West Nile Virus, Eastern Equine Encephalitis Virus, and Saint Louis Encephalitis Virus in 411 separate pools of 1-50 mosquitoes. No virus positive mosquitoes were detected. Blood meals from 377 engorged specimens caught at these sites were identified as of mammalian, avian, or reptile/amphibian origin using serological …

Biomolecular Tuning Of Electronic Transport Properties Of Carbon Nanotubes Via Antibody Functionalization, Kasif Teker, Dr. Eric Wickstrom, Balaji Panchapakesan

Department of Biochemistry and Molecular Biology Faculty Papers

Carbon nanotubes (CNTs) are remarkable solidstate nanomaterials due to their unique electrical and mechanical properties. The electronic properties of nanotubes combined with biological molecules such as proteins could make miniature devices for biological sensing applications. In this paper, the noncovalent interaction of single-wall CNTs with antibodies is presented for its potential applications for detecting overexpressed cell surface receptors in breast cancer cells. The degree of binding of antibodies on CNTs was found to be more than 80% for an extended sampling area by confocal microscopy. The key to achieve such high degree of functionalization is due to the separation of …

Copyright Claims For Meteosat And Landsat Images Under Court Challenge, Martha Mejía·Kaiser

Journal of Space Law

No abstract provided.

Molecular Systematics And Population Structure In The North American Endemic Fish Genus Cycleptus (Teleostei: Catostomidae), Michael Lee Bessert

School of Biological Sciences: Dissertations, Theses, and Student Research

The overarching theme of this research was to investigate hierarchical levels of relatedness in natural populations of the cycleptid fishes (blue suckers), a widespread genus in North America that is of conservation concern throughout. Phylogenetic analysis of mitochondrial DNA sequences revealed that the two described Cycleptus species, C. elongatus and C. meridionalis are not reciprocally monophyletic, yet do not share any haplotypes. Although lineage sorting is incomplete, Bayesian coalescent analyses indicate that the two groups diverged early in the Pleistocene and have been reproductively isolated since. Whether they should be synonymized as C.elongatus and recognized as subspecies is open for …

Changes In Land Cover And Soil Conditions For The Yabelo District Of The Borana Plateau, 1973-2003, D. Layne Coppock, Sintayehu Mesele, Heluf Gebrekidan, Lemma Gizachew

Environment and Society Faculty Publications

It has been proposed that the Borana Plateau has markedly changed in terms of land cover and land use in recent decades, but no hard data have been available to critically assess this claim. In addition, systematic analysis of soil properties has been limited. Research was designed to measure changes in land cover/land use over 30 years in the 400-km2 Yabelo District of southern Ethiopia using three satellite images taken at an average interval of 15 years. Samples were also collected to assess variation in the physical and chemical properties of dominant soils. Results indicated that Yabelo District has indeed …