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2008

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Nu Skin Enterprises: Market Research Project, Jay An, Brian Carroll, Tim Headrick, Abby Sheffield Jan 2008

Nu Skin Enterprises: Market Research Project, Jay An, Brian Carroll, Tim Headrick, Abby Sheffield

Student Works

Nu Skin's vision is to raise the percentage of customers that order online from 17 percent to 40 percent by the end of 2008. With this ambitious goal in mind, the BYU team tailored its research to help them move forward. The central question is, how can Nu Skin increase its conversion rate of those who visit nuskinusa.com to those who actually make purchases through the site. We hope to answer the following peripheral questions as well: (1.) Why do people order by phone rather than online, and (2.) How can Nu Skin improve its site to increase the percentage …

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Quantitative Trait Locus Mapping For Seed Mineral Concentrations In Two Arabidopsis Thaliana Recombinant Inbred Populations, Brian M. Waters, Michael A. Grusak Jan 2008

Quantitative Trait Locus Mapping For Seed Mineral Concentrations In Two Arabidopsis Thaliana Recombinant Inbred Populations, Brian M. Waters, Michael A. Grusak

Department of Agronomy and Horticulture: Faculty Publications

Biofortification of foods, achieved by increasing the concentrations of minerals such as iron (Fe) and zinc (Zn), is a goal of plant scientists. Understanding genes that influence seed mineral concentration in a model plant such as Arabidopsis could help in the development of nutritionally enhanced crop cultivars. Quantitative trait locus (QTL) mapping for seed concentrations of calcium (Ca), copper (Cu), Fe, potassium (K), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S), and Zn was performed using two recombinant inbred line (RIL) populations, Columbia (Col) × Landsberg erecta (Ler) and Cape Verde Islands (Cvi) × Ler, grown …

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Chemical And Sensory Properties Of Beef Of Known Source And Finished On Wet Distillers Grains Diets Containing Varying Types And Levels Of Roughage, B. E. Jenschke, Joshua R. Benton, Chris R. Calkins, Timothy P. Carr, Kent M. Eskridge, Terry Klopfenstein, Galen E. Erickson Jan 2008

Chemical And Sensory Properties Of Beef Of Known Source And Finished On Wet Distillers Grains Diets Containing Varying Types And Levels Of Roughage, B. E. Jenschke, Joshua R. Benton, Chris R. Calkins, Timothy P. Carr, Kent M. Eskridge, Terry Klopfenstein, Galen E. Erickson

Department of Animal Science: Faculty Publications

Beef knuckles (n = 160) were obtained from source-verified cattle finished on 30% wet distillers grains plus solubles enriched with varying levels of alfalfa hay (4 or 8%), corn silage (6 or 12%), or corn stalks (3 or 6%) based on NDF. Proximate analysis, pH, oxidation-reduction potential, fatty acid composition, and sensory analysis were conducted on the rectus femoris muscle to determine if roughage inclusion, in conjunction with wet distillers grains plus solubles and cattle source, affects beef flavor with particular interest in liver-like off-flavor. Proximate analysis, fat content, and oxidation-reduction potential were unaffected (P ≥ 0.129) by diet or …

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Frontmatter And Contents Jan 2008

Frontmatter And Contents

Nebraska Beef Cattle Reports

Appreciation is also expressed to the following Research Technicians, Unit Managers, and Crew involved in the Research Programs at our various locations.

Agricultural Research & Development Center, Ithaca:
Josh Benton
Jeff Bergman
Matt Greenquist
Rodney Lamb
Walker Luedtke
Allison Miller
Karl Moline
Mark Nelson
Chuck Rezac
Ken Rezac
Mark Schroeder
Matt Sillivan
Andrea Schwarz
Doug Watson

Animal Science Department, Lincoln:
Crystal Buckner
Deb Clopton
Ruth Diedrichsen
Jeryl Hauptman
Blaine Jenschke
Tommi Jones
Matt Luebbe
Nathan Meyer
Clyde Naber
Calvin Schrock

Gudmundsen Sandhills Laboratory, Whitman:
Andy Applegarth
Jay Holthus
Jackie Musgrave
John Nollette
Ryan Sexson

Panhandle Research & Extension Center, Scottsbluff: …

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Allies Not Adversaries: Teaching Collaboration To The Next Generation Of Doctors And Lawyers To Address Social Inequality, Elizabeth Tobin Tyler Jan 2008

Allies Not Adversaries: Teaching Collaboration To The Next Generation Of Doctors And Lawyers To Address Social Inequality, Elizabeth Tobin Tyler

Pro Bono Collaborative Staff Publications

Recent reports from the Carnegie Foundation for the Advancement of Teaching, as well as from other medical and legal educators, stress that professional training of doctors and lawyers focuses too narrowly on knowledge-based learning, and not enough on context-based problem solving, professionalism, and ethics. Tracing recent calls from both legal and medical educators to increase the teaching of ethics, social responsibility, the lawyer-client and doctor-patient relationship, and holistic problem-solving, this article offers a model of interdisciplinary medical-legal education focused on developing practitioners sensitive to the needs of diverse and disenfranchised clients and patients. It highlights a burgeoning medical-legal partnership model, …

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Evaluation Of Aflatoxin-Related Products From Ozonated Corn, Alfredo Domingo Prudente, Jr. Jan 2008

Evaluation Of Aflatoxin-Related Products From Ozonated Corn, Alfredo Domingo Prudente, Jr.

LSU Doctoral Dissertations

This study assessed the efficacy of the ozonation process in degrading aflatoxin in corn, and investigated the chemical reaction between aflatoxin and gaseous ozone. Ozonation (12-13 wt%) totally degraded aflatoxin B1 in a model system. Conversion of aflatoxin into polar compounds was observed during ozonolysis of 100 µg aflatoxin B1 in an aqueous environment and in solid form. Seven intermediate reaction products were separated by two-dimensional thin layer chromatography. HPLC analysis of ozonated AFB1 revealed the presence of six major peaks. MALDI-MS analysis detected compounds that have higher molecular weights than AFB1. The dichloromethane fraction contained compounds with molecular ion …

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The Effects Of Food Deprivation On Caffeine And Food Reinforcement In Females, Lauren Baillie Jan 2008

The Effects Of Food Deprivation On Caffeine And Food Reinforcement In Females, Lauren Baillie

LSU Master's Theses

This study examined the reinforcing value of caffeine and food in a sample of 14 normal-weight females who indicated some degree of dietary restraint, and consumed caffeine daily. Eligible individuals participated in two sessions, one of which required a 24-hour fast. During both sessions, participants completed measures assessing caffeine withdrawal symptoms, urge to drink caffeine, hunger, and a multiple-choice questionnaire (MCQ) requiring them to earn points towards either snack foods or caffeinated beverages. There were no significant differences between the fasting and non-fasting conditions on MCQ scores, though the means were in the predicted direction (i.e., participants appeared to work …

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Changes In Body Image And Body Weight And Shape Goals Associated With Weight Loss And Maintenance In Overweight/Obese Adults Diagnosed With Type 2 Diabetes Mellitus, Amy Rzeznikiewicz Bachand Jan 2008

Changes In Body Image And Body Weight And Shape Goals Associated With Weight Loss And Maintenance In Overweight/Obese Adults Diagnosed With Type 2 Diabetes Mellitus, Amy Rzeznikiewicz Bachand

LSU Doctoral Dissertations

The primary aim of this study was to test for changes in body image in males and females in a randomized controlled trial of weight loss for older overweight/obese adults who have been diagnosed with type 2 diabetes (Look AHEAD: Action for Health in Diabetes). A computerized morphing assessment program (The Body Morph Assessment; BMA 2.0) was used to assess estimates of perceived current body size (CBS), ideal body size (IBS), acceptable body size (ABS), body dissatisfaction based on the discrepancy between participants’ perceived CBS and IBS (CBS-IBS) and ABS (CBS-ABS), as well as participants’ weight loss goals in terms …

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Multimedia Mathematics Intervention For Math-Delayed Middle School Students, Lisa L. Stokes Jan 2008

Multimedia Mathematics Intervention For Math-Delayed Middle School Students, Lisa L. Stokes

LSU Doctoral Dissertations

The purpose of this study is to determine if the Sharpening Math Skills Lab technology-mediated mathematics instructional practices for math-delayed middle school students have positive effects on their mathematics achievement and spatial visualization ability and to gauge student engagement in learning, implementation of the principles of instructional design, and attitudes toward mathematics instruction. The results of a recent meta-analysis report a range of significantly positive to significantly negative effect sizes which establish a need for further evaluation of academic achievement utilizing technology-mediated mathematics programs at the middle school level (Slavin, Lake, & Groff, 2007). The literature (Moreno & Mayer, 2000) …

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Characterization And Comparison Of Cell Frequency, Growth, And Multipotential Differentiation Of Adult Mesenchymal Stromal Cells Derived From Equine Bone Marrow And Adipose Tissue, Martin Andreas Vidal Jan 2008

Characterization And Comparison Of Cell Frequency, Growth, And Multipotential Differentiation Of Adult Mesenchymal Stromal Cells Derived From Equine Bone Marrow And Adipose Tissue, Martin Andreas Vidal

LSU Doctoral Dissertations

Equine bone marrow-derived mesenchymal stromal cells (MSCs) and adipose tissue-derived stromal cells (ASCs) were compared for frequency within their respective tissues, cell doubling characteristics and differentiation multipotential in culture based on histochemical staining and compositional analysis. Equine MSCs and ASCs from young adult horses were harvested and isolated from sternal bone marrow and supragluteal subcutaneous adipose tissue, respectively, and grown up to passage 10 (P10) to determine cell doubling characteristics. Limit dilution assays were performed on primary and passaged (P2, P4) MSCs and ASCs to determine the frequency of colony forming units with a fibroblastic phenotype (CFU-F), and the frequency …

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Molecular Diversity And Coat Protein Expression Of Sweet Potato Leaf Curl Virus, Dina Lida Gutierrez Reynoso Jan 2008

Molecular Diversity And Coat Protein Expression Of Sweet Potato Leaf Curl Virus, Dina Lida Gutierrez Reynoso

LSU Doctoral Dissertations

Leaf curl virus diseases have been reported in sweetpotato throughout the world. One of the causal agents is Sweet potato leaf curl virus (SPLCV) which belongs to the genus Begomovirus (family Geminiviridae). In the United States, SPLCV has been found infecting an ornamental sweetpotato and several breeding lines but not in sweetpotatoes grown for commercial production. SPLCV does not cause symptoms on Beauregard, the predominant sweetpotato cultivar in the US, but it can reduce its yield. Since SPLCV could become an important constraint for sweetpotato production; diagnosis, identification, and characterization are essential steps to develop an effective management program. The …

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Heterogeneous Catalyzed Macromolecular Hydrogenations In Oscillating Systems, Alan Bussard Jan 2008

Heterogeneous Catalyzed Macromolecular Hydrogenations In Oscillating Systems, Alan Bussard

LSU Doctoral Dissertations

An examination of novel oscillatory (alternating gas and liquid phase) reactors and heterogeneous catalysts for multi-phase macromolecular reactions was carried out. A monolith-containing square die with Pd/Al2O3 catalysts was used to successfully hydrogenate poly(styrene) (PS). The inherent pulse behavior of the extruder was found to be sufficient to approach intrinsic kinetics at low polymer concentrations. At higher (10 wt% PS) concentrations, forced pulsing was shown to have a greater impact on observed reaction rates. Selectivity with this extruder-fed reactor was better than with a stirred tank in all cases, due to a more plug-flow-like residence time distribution. While accurate control …

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Wax Extraction And Characterization From Full-Fat And Defatted Rice Bran, Junghong Kim Jan 2008

Wax Extraction And Characterization From Full-Fat And Defatted Rice Bran, Junghong Kim

LSU Doctoral Dissertations

Rice bran oil (RBO) contains 3-4% waxes (rice bran wax, RBW), which are composed of wax esters (WE), hydrocarbons, and other minor constituents. Saponified rice bran wax esters (RBWE) generate fatty acids, long chain alcohols, and phytosterols. Phytosterols and long chain fatty alcohols (policosanol) are known to reduce serum cholesterol and inhibit hepatic cholesterol synthesis. The yields and RBWE contents of RBO and RBW extracted from full-fat RB (FFRB) and defatted RB (DFRB) were determined using 6 different conditions with Soxhlet and Microwave-assisted extraction (MAE). The compositions of WEs from RBO and RBW were also compared. RBW was obtained from …

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An Analysis Of Marine Protected Areas Legislation In The Caribbean Lesser Antilles, Barry James Bleichner Jan 2008

An Analysis Of Marine Protected Areas Legislation In The Caribbean Lesser Antilles, Barry James Bleichner

LSU Master's Theses

Historically, marine resources and ecosystems were believed to be limitless and exploitation of those resources occurred with little regard to future consequences. Recent studies suggests that this belief is misplaced, as research indicates that many of these marine resources face extinction if protective measures are not implemented soon. Marine protected areas, or MPAs have garnered increasing attention as a means to effectively protect and conserve marine resources. Establishment and management of marine protected areas typically require implementing legislation in order to provide a legal basis for enforcement of MPA rules and regulations. The intent of this research was to determine …

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Replication Of Viruses Responsible For Sweet Potato Virus Disease In Resistant And Susceptible Sweepotato Genotypes And Identification Of Molecular Markers Linked To Resistance, Douglas Watuku Miano Jan 2008

Replication Of Viruses Responsible For Sweet Potato Virus Disease In Resistant And Susceptible Sweepotato Genotypes And Identification Of Molecular Markers Linked To Resistance, Douglas Watuku Miano

LSU Doctoral Dissertations

Virus diseases are a major constraint to sweetpotato production in East Africa. The most important is the Sweet potato virus disease (SPVD), a result of co-infection of Sweet potato chlorotic stunt virus (SPCSV) and Sweet potato feathery mottle virus (SPFMV). Studies were done on different aspects of resistance to SPVD, and to determine the presence of Sweet potato virus G (SPVG), Sweet potato virus 2 (SPV2), and Sweet potato leaf curl virus (SPLCV), viruses that have not been reported infecting sweetpotato in Kenya. None of the samples reacted to antisera for either SPVG or SPV-2. SPLCV was detected infecting sweetpotato …

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Enzymatic Production And Biological Activities Of Cellobio-Oligosaccharides From Lignocellulose, Misook Kim Jan 2008

Enzymatic Production And Biological Activities Of Cellobio-Oligosaccharides From Lignocellulose, Misook Kim

LSU Doctoral Dissertations

Cellulose is the most abundant biopolymer in nature and is the major component of lignocellulosic biomass. It has potential to produce not only glucose but value¨Cadded products such as cellobiose and oligosaccharides. Typically, enzymatic hydrolysis of cellulose produces glucose and a small amount of cellobiose. Modification of cellulase solutions altered ratio of glucose to cellobiose produced. The addition of glucose oxidase, gluconolactone, or gluconic acid significantly increased the amount of cellobiose remaining at the end of cellulose hydrolysis. Addition of glucose oxidase resulted in cellobiose being 23.7% of the product sugars from pure cellulose and 14.1% from ligonocellulose (sugarcane bagasse). …

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The Diet Of Saltmarsh Consumers, Kari Ann Galvan Jan 2008

The Diet Of Saltmarsh Consumers, Kari Ann Galvan

LSU Doctoral Dissertations

Salt marshes are areas of high primary production that in turn support high secondary production. Macrophytes, phytoplankton and a variety of benthic algae all contribute to the high primary productivity. Each has the potential to contribute to the saltmarsh food web making it difficult to determine organic matter resources important to secondary production in salt marshes. Furthermore, our understanding of saltmarsh food webs is complicated by anthropogenic effects such as nutrient inputs and exploitation of key predators. I utilized a combination of natural abundance stable isotopes, isotope tracer additions, gut content analysis and manipulative experiments to determine the diets of …

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The Use Endocrine Markers To Predict And Monitor Performance In Strengh [Sic] And Power Activities, Jason B. Winchester Jan 2008

The Use Endocrine Markers To Predict And Monitor Performance In Strengh [Sic] And Power Activities, Jason B. Winchester

LSU Doctoral Dissertations

Hormones are typically considered to be chemical messengers, which are designed to be released from specific cells where they are carried to their target tissues for binding to receptors. It is this binding of a hormone molecule to its specific receptor which allows for an action to occur (Hadley and Levine 2006). Testosterone is the predominant androgen in the majority of mammalian species and is largely responsible for regulation of reproduction and maintenance of sexual function. In addition, in adult mammals, T has multiple other roles including the growth of muscle and bone, hematopoesis, blood coagulation, development and regulation of …

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A Longitudinal Study Of Married Women's Probability Of Being Housewives In Reforming Urban China, Chiung-Yin Hu Jan 2008

A Longitudinal Study Of Married Women's Probability Of Being Housewives In Reforming Urban China, Chiung-Yin Hu

LSU Doctoral Dissertations

This study examines married women’s employment status and the factors associated with their being full-time housewives between 1989 and 2004 in urban China. I argue that the transition from a command economy to a market-oriented economy since the early 1980s has had negative impacts on married women’s labor force participation. Using six waves of the Chinese Health and Nutrition Survey (1989, 1991, 1993, 1997, 2000, and 2004), I find that the percentages of full-time housewives in urban China tripled in just 15 years, and the largest amount of growth occurred in the most recent period. Regression analyses confirm that married …

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Iron And Zinc Physiology In Sweetpotato, Mary Catherine Singleton Jan 2008

Iron And Zinc Physiology In Sweetpotato, Mary Catherine Singleton

LSU Master's Theses

Sweetpotato [Ipomoea batatas (L.) Lam.] is an important provider of nutrition in developing countries. High productivity in the form of starch and beta carotene richness underlies its potential. A sweetpotato with adequate levels of iron and zinc would greatly aid efforts to reduce dietary deficiencies of iron and zinc. The objective of this work is to document the physiological accumulation of iron and zinc in sweetpotato during development and the mechanisms responsible for iron uptake. Six varieties (‘IPS 163, ‘Beauregard’,‘Koto-puki’, ‘Pung-mi’, ‘Duanyanghon’, and ‘Xushu 18’) were compared to understand iron and zinc accumulation during development. Results showed that micronutrient content …

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Assessing The Effectiveness Of The Response To Instruction Model For English Language Learners By Utilizing A Non-Language-Based Intervention, Chisato Komatsu Jan 2008

Assessing The Effectiveness Of The Response To Instruction Model For English Language Learners By Utilizing A Non-Language-Based Intervention, Chisato Komatsu

LSU Doctoral Dissertations

The purpose of the current investigation was to examine the use of the Response to Intervention (RTI) model for English Language learners (ELLs) by using a computerized constant time delay procedure (CTD) that de-emphasized the use of language. Forty-five ELLs, 22 native English speakers, and five students with a diagnosis of mild mental retardation participated in the study. A computer-administered CTD procedure was utilized for paired associate tasks. The study found differences and patterns in students’ performances that could be used to differentiate responders and non-responders to intervention. An interesting finding was that once the students were divided into groups …

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Trophic Control Of Saltmarsh Invertebrates, David Samuel Johnson Jan 2008

Trophic Control Of Saltmarsh Invertebrates, David Samuel Johnson

LSU Doctoral Dissertations

Top-down (consumer) versus bottom-up (resource) control of food webs has long interested ecologists. Here, I take advantage of a full-factorial design of ecosystem-wide manipulations of nutrient additions (loading rates 10x above background) and the significant reduction (~60%) of a key predator, the killifish Fundulus heteroclitus, in the tidal creeks of the Plum Island Estuary, Massachusetts. Prior to manipulations, annelids numerically constituted 97% of the infaunal community and the largest scale (creeks) accounted for little spatial variability in annelid populations and diversities. Tidal creeks were similar based on diversity indices, abundance, and community patterns, suggesting the tidal creeks are appropriate replicates/experimental …

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Speaking The Language Of Integration: A Case Study Of South Boulevard Foreign Language Academic Immersion Magnet, Heather Kathleen Olson Beal Jan 2008

Speaking The Language Of Integration: A Case Study Of South Boulevard Foreign Language Academic Immersion Magnet, Heather Kathleen Olson Beal

LSU Doctoral Dissertations

Racial segregation and an achievement gap persist despite the promises of Brown vs. Board of Education (1954). In Baton Rouge, Louisiana, public schools are 83% Black, while nearly one-third of all children attend private schools which are 86% White. South Boulevard (SB) Foreign Language Academic Immersion Magnet Elementary is a counterexample because it has achieved integration and academic achievement well above district and state averages on high stakes tests. This research explores the culture of SB’s immersion magnet program in relation to its success as an integrated public school with high student achievement and explores the factors that motivated a …

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Landscape Analysis Of Vegetation Change In Coastal Louisiana Following Hurricanes Katrina And Rita, Gregory Dean Steyer Jan 2008

Landscape Analysis Of Vegetation Change In Coastal Louisiana Following Hurricanes Katrina And Rita, Gregory Dean Steyer

LSU Doctoral Dissertations

Investigations of hurricane disturbances on coastal vegetated communities are common, but relatively few are comprehensive across broad geographic regions. The 2005 hurricanes, Katrina and Rita, exposed Louisiana coastal landscapes to physical modifications and extensive and prolonged flooding, resulting in measurable physicochemical changes. This research used remote sensing and field investigations to regionally assess (1) porewater salinity and sulfide impacts to and recovery of coastal Louisiana vegetation communities, and (2) the importance of mineral sediment deposition on accretionary processes. Hurricane effects were most direct and prominent in eastern Louisiana from Katrina and western Louisiana from Rita, compared to central Louisiana exposed …

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Degradation And Water Quality Dynamics Of Sugarcane Residue In South Louisiana, Jose Roberto Deras Jan 2008

Degradation And Water Quality Dynamics Of Sugarcane Residue In South Louisiana, Jose Roberto Deras

LSU Doctoral Dissertations

PURPOSE: This research was conducted to assess methods to manage the residue blanket to avoid open field burning in sugarcane. Experiments were conducted in the state of Louisiana to evaluate methods to asses and potentially reduce water quality issues. METHODS: Concentrations and frequencies of biological compost tea were sprayed on sugarcane combine-harvester residue blanket to increase degradation rate and reduce potential for runoff water to transport nutrients and sediments that may impair water bodies, while sustaining suitable sugarcane yield. Carbon dioxide evolution rate (mg CO2-C) and CO2 fluxes were measured in laboratory and in open field conditions; as an index …

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An Evaluation Of The Perceived Obstacles For Policy Officials Regulating The Post Harvest Treatment Of Raw Oysters To Control The Human Health Vibrio Vulnificus Problem, Amy Leah Oestringer Jan 2008

An Evaluation Of The Perceived Obstacles For Policy Officials Regulating The Post Harvest Treatment Of Raw Oysters To Control The Human Health Vibrio Vulnificus Problem, Amy Leah Oestringer

LSU Master's Theses

Vibrio vulnificus is the leading pathogen linked to seafood-associated deaths. This naturally occurring marine bacterium presents a human health risk when it is consumed in raw oysters. Hospitalization is necessary in 90 % Vibrio vulnificus illnesses and 40% end in death. (CDC) Several guidelines and regulations have been enacted to combat this human health issue, but have failed to reduce the steadily rising illness rate. Post-harvest processing requirements for raw oysters could be used to reduce illness rates. A survey was conducted to measure the perceived obstacles that regulators and industry representatives of the raw oyster industry face in policymaking …

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Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr Jan 2008

Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr

LSU Master's Theses

In recent years, the use of genetic markers has become more and more prevalent in beef breeding programs. This research focused on four previously identified single nucleotide polymorphisms in a leptin gene on chromosome 4 of beef cows. The SNP were E2FB, T945M, UA1, and UA2. Beef cows used in this research were maintained at the Louisiana State University AgCenter Central Research Station. Cows consisted of purebred Bos tauras and Bos indicus cattle as well as crossbreds. The objectives were to estimate genotypic and allelic frequencies for each SNP and to determine the influence of cow breed type, cow age, …

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Effect Of The SmartstepTm Stabilization System On Balance In Older Adults In An Independent Living Residence, Ann L. Livengood Jan 2008

Effect Of The SmartstepTm Stabilization System On Balance In Older Adults In An Independent Living Residence, Ann L. Livengood

University of Kentucky Doctoral Dissertations

An increase in postural sway is one of the risk factors that have been linked to an increased incidence of falls in the older adult population. Researchers have shown that peripheral sensation is crucial in maintaining a static posture for adults of all ages. It has been reported that older adults have decreased tactile sensation of the plantar surface of their feet. and when the sensory feedback was increased older adults had improved postural control. It was hypothesized that facilitation of the sole of the foot with the use of a semirigid foot orthotic would result in improved postural stability …

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The Role Of Spiders In The Detrital Food Web Of An Eastern Deciduous Forest, Erin Elizabeth Hladilek Jan 2008

The Role Of Spiders In The Detrital Food Web Of An Eastern Deciduous Forest, Erin Elizabeth Hladilek

University of Kentucky Doctoral Dissertations

Historically, terrestrial food web research has focused on describing the structure of aboveground grazing webs, and determining how interactions among plants, herbivores and higher trophic levels influence primary productivity. Detrital food webs however, play a significant role in regulation of ecosystem dynamics through direct impacts on decomposition. Unraveling the complex nature of detrital food web structure is critical to developing a better understanding of ecosystem function. Therefore the primary objective of this research was to describe the structure of the leaf-litter food web in a temperate deciduous forest, with emphasis on interactions between a community of generalist predators, the forest-floor …

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Brachial Artery Flow Mediated Vasodilation: Effect Of Chemical Analytes, Diet, Exercise, And Genetic Markers, Joanie Brocato Wilson Jan 2008

Brachial Artery Flow Mediated Vasodilation: Effect Of Chemical Analytes, Diet, Exercise, And Genetic Markers, Joanie Brocato Wilson

LSU Doctoral Dissertations

The goal of this research was to gain a better understanding of interplay between molecular biology, physiology, biochemistry, functionality with disease and interventions. The primary findings of the first study were that there was a significant inverse correlation between homocysteine and brachial artery flow mediated dilation (BAFMD) and baseline brachial artery diameter. Interestingly, there was a significant difference in BAFMD between methylene tetrahydrofolate reductase (MTHFR) genotype groups. Regression analysis indicated that the MTHFR genotype, homocysteine and age were significant predictors of BAFMD. The second study revealed that vascular reactivity as measured by BAFMD was modifiable. A meta-analysis of 22 intervention …

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