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Articles 961 - 990 of 1943
Full-Text Articles in Entire DC Network
Effects Of Exercise On Bmi Z-Score In Overweight And Obese Children And Adolescents: A Systematic Review With Meta-Analysis, George A Kelley, Kristi S Kelley, Russell R Pate
Effects Of Exercise On Bmi Z-Score In Overweight And Obese Children And Adolescents: A Systematic Review With Meta-Analysis, George A Kelley, Kristi S Kelley, Russell R Pate
Faculty & Staff Scholarship
No abstract provided.
Measuring Legume Content In Pastures Using Digital Photographs, Edward Barrow Rayburn
Measuring Legume Content In Pastures Using Digital Photographs, Edward Barrow Rayburn
Faculty & Staff Scholarship
No abstract provided.
Visual Reference Guide For Estimating Legume Content In Pastures, Edward Barrow Rayburn, James T. Green
Visual Reference Guide For Estimating Legume Content In Pastures, Edward Barrow Rayburn, James T. Green
Faculty & Staff Scholarship
No abstract provided.
In Vitro Recapitulation Of Functional Microvessel Using Microfluidic Platform, Xiang Li
In Vitro Recapitulation Of Functional Microvessel Using Microfluidic Platform, Xiang Li
Graduate Theses, Dissertations, and Problem Reports (ETD)
Microfluidic technologies have enabled in vitro studies to mimic in vivo microvessel environment with sufficient complexity. However, there are still existing knowledge gaps and lack of convincing evidence to demonstrate and quantify key features of a functional microvessel. In this dissertation, a physiologically realistic microvessel model was developed with a stable and mature endothelium for studying complex vascular phenomena, such as endothelial cell signaling and barrier functions with the microscopic resolution at individual cellular levels. With advanced micromanufacturing and microfluidic technologies, two types of cost-efficient, easy to operate and reproducible microchannel network devices were fabricated, and the fabricated microchannels mimicked …
High Salt Diet-Induced Alteration In Vascular Reactivity In Wild-Type And Adenosine A2a Receptor Null Mice, Isha Pradhan
High Salt Diet-Induced Alteration In Vascular Reactivity In Wild-Type And Adenosine A2a Receptor Null Mice, Isha Pradhan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Alteration in vascular reactivity serves as a marker for cardiovascular disease. Enhancement of vasodilatory response through adenosine A2A receptor (A2AAR) signaling against high salt (HS) diet is speculated to be an adaptive response as salt-sensitive rats showed upregulation of A 2AAR and cyp-epoxygenases but salt-resistant rats did not. However, no direct evidence is available showing the compensatory role of A2A AR signaling upon salt loading. For this, understanding the functional and biochemical outcome of HS diet on vascular tone regulation and its underlying signaling mechanism in the presence and absence of A 2AAR is required. This dissertation was carried out …
A Poultry Litter Marker Gene Correlates With Pathogen And Indicator Bacteria Deposition On, Growth In And Transport From Poultry Bedding, Kameswari Sirisha Mantha
A Poultry Litter Marker Gene Correlates With Pathogen And Indicator Bacteria Deposition On, Growth In And Transport From Poultry Bedding, Kameswari Sirisha Mantha
Graduate Theses, Dissertations, and Problem Reports (ETD)
Poultry is one of the major contributors of inputs to U.S. environmental waters due to the large number of poultry grown per year in the U.S. and litter disposal practices. Two studies were conducted during this research: (1) to determine the temporal rate of deposition and growth or decay of microorganisms in poultry litter originating from poultry feces and (2) the release and transport of poultry litter associated microorganisms from soiled poultry litter applied as fertilizer through soil columns under simulated rainfall. First, deposition studies were conducted to evaluate the deposition rate of microorganisms on poultry bedding during the growth …
The Effects Of A Happiness Intervention On Measures Of Psychological Well-Being And Motivation To Quit Smoking Among Smokers With Depressive Symptoms, Kelly A. Bailey
The Effects Of A Happiness Intervention On Measures Of Psychological Well-Being And Motivation To Quit Smoking Among Smokers With Depressive Symptoms, Kelly A. Bailey
Graduate Theses, Dissertations, and Problem Reports (ETD)
Depressed smokers are a group of individuals whose health and overall functioning can benefit from interventions aimed to enhance well-being. Researchers have recently found significant relations between positive affect and smoking cessation success, and between low affect and smoking relapse, and unsuccessful abstinence (Cook et al., 2010; Leventhal et al., 2008, 2009; Niemiec, 2010). The examination of the effects of happiness interventions for a population considered to be “underserved” has only just begun (Borrelli, 2010, p. 2; Kahler et al., 2013). In this study, the independent variable was a happiness intervention and the outcome variables were psychological well-being and motivation …
Grazing Management Practices Among West Virginia Beef Producers, Marcus T. Mccartney
Grazing Management Practices Among West Virginia Beef Producers, Marcus T. Mccartney
Graduate Theses, Dissertations, and Problem Reports (ETD)
The importance of sustainability has been recognized around the globe due to significant concerns about the unintended social, environmental, and economic effects of rapid population growth, economic growth and natural resource consumption and since has been implemented into government policies. Agriculture can significantly affect sustainability. It is vital to understand the current practices of farmers to promote best practices where needed and to continue to support and encourage best practices being utilized.;The purpose of this study was to determine the current grazing management practices among West Virginia beef producers. A descriptive research design using a mailed questionnaire was used to …
The Use Of Hand Bacteria As A Human Biometric Identifier, Amanda Holbert
The Use Of Hand Bacteria As A Human Biometric Identifier, Amanda Holbert
Graduate Theses, Dissertations, and Problem Reports (ETD)
Molecular and bio-molecular biometrics are an advancing field that involves the analysis of a person's unique biological markers at a molecular level to ascertain identity. Bacteria communities found on the skin of the human hand have shown to be highly diverse and to have a low percentage of similarity between individuals. The goal of this research effort is to see if a person's demographics, primarily ethnicity, share a relationship with the bacteria communities that exist on their hand. A sample collection was carried out in which the left and right inner palms of 250 individuals were swabbed to obtain a …
Aquaponic Production Of Lettuce (Lactuca Sativa L.) Using Effluent From A Cold Water Flow-Through Aquaculture System, Gaylynn Elise Johnson
Aquaponic Production Of Lettuce (Lactuca Sativa L.) Using Effluent From A Cold Water Flow-Through Aquaculture System, Gaylynn Elise Johnson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Aquaponics is the integration of aquaculture (the rearing of fish) and hydroponics (the conventional method of soilless farming). Effluent produced from the production of fish can be utilized as a source of nutrients by plants for growth in a hydroponic subsystem. Lettuce (Lactuca sativa) is an economically important vegetable crop that can be grown aquaponically. However, the suitability of lettuce for production in cold water flow-through systems (FTSs) is poorly described. The purpose of this study was to evaluate the growth, market rating, and nutrient uptake of lettuce grown in a cold water FTS. Three objectives were established to examine …
Factors That Are Associated With Readiness To Transition From Pediatric To Adult Health Care In Cystic Fibrosis, Lindsay A. Corman
Factors That Are Associated With Readiness To Transition From Pediatric To Adult Health Care In Cystic Fibrosis, Lindsay A. Corman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Life expectancy of patients with Cystic Fibrosis (CF) has been increasing, with most children with CF expected to live at least into middle age adult years. Consequently, the majority of patients with CF will have to transition from a pediatric to an adult clinic. Unfortunately, few transition programs exist that attend to the physical, developmental, and psychological factors of adolescents with CF who need to transfer to adult clinics. Moreover, to date, there is a dearth of quantitative research that has been conducted to assess factors that may influence readiness to transition. The purpose of this study is to examine …
The Development Of An Insect Succession Model Suitable For Time-Since-Death Statistics, Anne E. Perez
The Development Of An Insect Succession Model Suitable For Time-Since-Death Statistics, Anne E. Perez
Graduate Theses, Dissertations, and Problem Reports (ETD)
For academic carrion insect succession studies to be applicable to forensic casework, the study must provide statistically defensible postmortem interval (PMI) estimates. Multiple statistical approaches have been used to describe insect succession, but no study to date has been able to determine a confidence interval about a succession based PMI estimate. The ability to reject PMI values, and thereby create a confidence interval is determined by statistical power, of which sample size is a positive correlate. A proposed model established prospective sample sizes for desired levels of statistical power, indicating a target sample size of ~50 carcasses for estimating PMI …
The Role Of Self-Efficacy In Predicting Treatment Adherence In Youth With Cystic Fibrosis, Margo M. Szabo
The Role Of Self-Efficacy In Predicting Treatment Adherence In Youth With Cystic Fibrosis, Margo M. Szabo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Adolescents with cystic fibrosis (CF) demonstrate relatively poor treatment adherence in comparison to other age groups, which can lead to adverse health outcomes. Though previous research has examined various factors associated with treatment adherence in pediatric CF samples, no studies to date have explored the interrelations among self-efficacy, parental style, level of responsibility for CF care, and treatment adherence in this population. Therefore, the purpose of this study was to examine the role of self-efficacy, parental style, and level of responsibility for CF care in predicting treatment adherence in adolescents with CF. A sample of 59 adolescents with CF (M …
Ion Current Rectification In Nanomicro-Fluidic Interfaces And Pulsed Glow Discharge Time-Of-Flight Mass Spectrometric Chemical Speciation, Han Wang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Microfluidics continues to be of interest for analyzing chemical and biological samples because of the disposability, portability, low sample consumption, fast analysis time, and parallel analysis potential for multiple samples in a single device. To improve microfluidic device functionality, integrated systems-nanofluidic/microfluidic interfaces (NMIs) have been fabricated for concentrating samples and performing as molecular gates. Ion current rectification has been confirmed in NMI with an asymmetric system. In chapter 2, the asymmetry of the NMI is systematically altered by varying the inner diameter of the nanocapillary membrane (NCM) reservoir, and the current rectification factor is observed to increase as the inner …
Socio-Demographic And Behavioral Factors Associated With Hiv Testing And Hiv Seropositivity Among Women And Children In Sub-Saharan Africa: A Population-Based Multilevel Analysis, Zelalem T. Haile
Graduate Theses, Dissertations, and Problem Reports (ETD)
Introduction: In sub-Saharan Africa, HIV/AIDS is one of the leading causes of mortality that disproportionately affects women and children. In this sub-region, 57% of those living with HIV are women and is home for 90% of children under the age of 15 that are living with HIV. This study examined socio-demographic and behavioral factors associated with HIV testing and HIV seropositivity among women and children using nationally representative data.;Methods: The study employed a cross-sectional study design using data from Demographic and Health Survey and AIDS Indicator Survey, conducted between the years 2006 and 2012 from 25 countries in sub-Saharan Africa. …
Assessment Of West Virginia Public Healthcare Professionals' Knowledge, Attitudes And Behaviors Regarding Of The Oral Implications Of Hpv Following An Educational Presentation, Renee Cooper-Frantz
Assessment Of West Virginia Public Healthcare Professionals' Knowledge, Attitudes And Behaviors Regarding Of The Oral Implications Of Hpv Following An Educational Presentation, Renee Cooper-Frantz
Graduate Theses, Dissertations, and Problem Reports (ETD)
Human Papillomavirus (HPV), the most common sexually transmitted infection in the United States, was firmly linked to a new subset of oropharyngeal squamous cell carcinomas (OSCC's) in late 2007. With growing rates of West Virginians affected by HPV-related oral cancers it becomes pertinent to verify that public healthcare professionals of all disciplines are aware of this causal relationship and educating their patients. The purpose of this study was to determine the knowledge level, attitudes and behaviors of a convenience sample of West Virginia's public healthcare professionals regarding the oral implications of HPV before and after and educational presentation. A pre- …
Health-Promoting Behaviors And Well Being Among Middle-Aged And Older Adults, Valerie K. Blake
Health-Promoting Behaviors And Well Being Among Middle-Aged And Older Adults, Valerie K. Blake
Graduate Theses, Dissertations, and Problem Reports (ETD)
The primary goal of this study was to evaluate the influence of adherence to nutrition guidelines and engaging in regular physical activity on the physical and psychological dimensions of well-being in a sample of middle-aged and older adults. All available sociodemographic indicators were also analyzed in order to investigate potential interactions. A structural equation model was constructed utilizing data from 348 middle-aged and older adults who completed the Health Behavior and Knowledge Survey. Results indicated the model was a good fit to the data, accounting for 40.4% of the variance in physical well-being and 26.3% of variance in psychological well-being. …
Altered Hemodynamic Control In The Skeletal Muscle Microcirculation In The Metabolic Syndrome: The Emergence Of A New Attractor, Joshua Thomas Butcher
Altered Hemodynamic Control In The Skeletal Muscle Microcirculation In The Metabolic Syndrome: The Emergence Of A New Attractor, Joshua Thomas Butcher
Graduate Theses, Dissertations, and Problem Reports (ETD)
Peripheral vascular disease is a pathological disease state whereby the peripheral vascular system becomes progressively limited in its ability to adequately perfuse extremities despite increases in metabolic demand. One of the primary risk factors for development of peripheral disease is the Metabolic Syndrome. It is the presentation of three simultaneous comorbidities, with obesity being the most common denominator in most metabolic syndrome patients, but also including a pro-inflammatory state, pro-oxidant state, pro-thrombotic state, increased blood pressure, atherogenic dyslipidemia, or insulin resistance. Currently, the population of the United States is approximately 75% overweight, obese, or extremely obese and the prevalence of …
Introduction To Pasture Ecology, Edward Barrow Rayburn
Introduction To Pasture Ecology, Edward Barrow Rayburn
Faculty & Staff Scholarship
WVU-Extension fact sheet
Meeting The Demand For Local Food In West Virginia: An Analysis Of Factors Influencing Producers' Market Participation And Expansion Decisions, Ruth Mary Oldham
Meeting The Demand For Local Food In West Virginia: An Analysis Of Factors Influencing Producers' Market Participation And Expansion Decisions, Ruth Mary Oldham
Graduate Theses, Dissertations, and Problem Reports (ETD)
Increasing demand in local food markets in WV offers a new or enhanced income generation opportunity to small producers. An ostensible gap in supply to meet this demand sparks an investigation of the factors that influence producers' decisions, as reflected by their behavior and intentions, to participate and expand in local food markets. The factors that influence both the behavior of current commercial producers and potential new entrants are identified through analysis of data collected through a survey of producers identified by field professionals. Specifically, the influence of motivational and place-based sociocultural characteristics, based on guidance from social psychology Theory …
Improving Opportunities For Small Flock Egg Production And Proper Evaluation Of Glucanase For Commercial Poultry, Angela Elsie Lamp
Improving Opportunities For Small Flock Egg Production And Proper Evaluation Of Glucanase For Commercial Poultry, Angela Elsie Lamp
Graduate Theses, Dissertations, and Problem Reports (ETD)
Consumers of pastured hen eggs have justified paying an associated premium price because they perceive animal welfare, sustainability, and nutrition are enhanced compared to conventionally produced eggs. The objective of Study 1 (Chapter 2) was to implement practical management strategies to increase eicosapentaenoic acid (EPA) and docosahexaenoic acid ( DHA) composition of eggs (Experiment 1) and to determine if the same diet formulation would produce an enhanced EPA and DHA egg composition and effect hen health when pasture access and hen breed varied (Experiment 2). For Experiment 1, four dietary treatments were utilized: 1) Basal, 2) Basal + 0.5% Sardine …
Management Structure Impact On Economic Success Of Farmers Markets, H. R. Scott
Management Structure Impact On Economic Success Of Farmers Markets, H. R. Scott
Graduate Theses, Dissertations, and Problem Reports (ETD)
Farmers markets have been a part of the food industry in the United States for almost as long as history (Webber, 2010). With farmers markets increasing in popularity and numbers, a need exists to determine why some markets thrive while others fail. A review of literature yielded some regional information however no information specific to West Virginia has been found. The purpose of this study is to determine the role of management has on the economic success of farmers markets in West Virginia. This research uses descriptive correlational research in doing comparison of the management styles in the market and …
Grazing Impacts On Sediment Production And Runoff From Single And Mixed Species Grazing, Brittany Parks
Grazing Impacts On Sediment Production And Runoff From Single And Mixed Species Grazing, Brittany Parks
Graduate Theses, Dissertations, and Problem Reports (ETD)
With growing human populations, we need to produce more food. Food production requires growing crops and raising livestock with existing and suitable land resources, potentially causing nutrient (phosphorus (P) and nitrogen (N)) pollution. For purposes of this study, the runoff potential for the mixed and single species grassland grazing will be examined. Mixed species grazing refers to cattle and sheep grazing concurrently in the same area; while single species grazing refers to cattle grazing alone. Understanding the environmental effects of mixed grazing as compared to a single species grazing systems will help to improve farming and agricultural practices that increase …
Microbial Genome Evolution Due To Multifaceted Symbiosis Within The Tsetse Fly (Diptera: Glossinidae), Anna Kathleen Snyder
Microbial Genome Evolution Due To Multifaceted Symbiosis Within The Tsetse Fly (Diptera: Glossinidae), Anna Kathleen Snyder
Graduate Theses, Dissertations, and Problem Reports (ETD)
Microbes are capable of rapid genetic modification, enabling the habitation of a wide field of niches, including forming interdependent associations with macroscopic hosts. While ancient multipartite mutualisms have been shown to involve metabolic complementation, little is known concerning the early genomic adaptations leading towards co-residence within a novel host. The overall objective of this research is to gain insight on genome evolution resulting from symbiosis, particularly by examining bacteria with varying levels of host dependency and times of establishment. The tsetse fly (Diptera: Glossinidae) serves as a relatively simple model system to investigate evolutionary aspects of symbiosis, while also maintaining …
Stressors And Coping Behaviors Of Female Peer Leaders Participating In College Club Sports, Leigh A. Bryant
Stressors And Coping Behaviors Of Female Peer Leaders Participating In College Club Sports, Leigh A. Bryant
Graduate Theses, Dissertations, and Problem Reports (ETD)
Peer leadership positions on collegiate club sport teams can be valuable opportunities for students to develop leadership skills, maintain healthy habits, create friendships, and foster organizational and personal connections across the university setting. Nevertheless, involvement in club sports can create stress over and above the many stressors that college students may encounter during their undergraduate experience. This study focused on exploring female leaders' perceived stressors inside and outside of the sport setting, and the ways in which they coped with them. Participants ( N = 7) were interviewed based on nominations from their respective teammates. Interviews were conducted using a …
Association Of Individual And Combined Metabolic Risk Factors With Cancer, Ruchi Bhandari
Association Of Individual And Combined Metabolic Risk Factors With Cancer, Ruchi Bhandari
Graduate Theses, Dissertations, and Problem Reports (ETD)
Introduction: The prevalence of metabolic risk factors (MRFs), individually and in the aggregate, is growing rapidly. There is limited biologic and epidemiologic evidence indicating an association between MRFs and cancer. The goal of this dissertation was to examine the association between individual and combined MRFs with subsequent risk of overall and site-specific cancers of the breast, digestive system, and lung.;Methods: A systematic review with meta-analysis on the association between metabolic syndrome (a cluster of MRFs) and breast cancer was conducted. In addition, associations between MRFs and risk of overall and site-specific cancers were assessed by multivariable Cox proportional hazards regression …
Influence Of Weight Loss On Metabolic And Mitochondrial Function In The Mature Horse, Jennie L. Zambito
Influence Of Weight Loss On Metabolic And Mitochondrial Function In The Mature Horse, Jennie L. Zambito
Graduate Theses, Dissertations, and Problem Reports (ETD)
Obesity causes a multitude of metabolic issues in the horse, yet stepwise alterations in glucose and lipid metabolism, mitochondrial capacity and oxidant status during weight loss have yet to be analyzed. Skeletal muscle contains subsarcolemmal (SSM) and interfibrillar (IFM) mitochondria, which respond differently to physiological stimuli, impacting tissue and whole body oxidant status. We hypothesized that 8 light-type horses would display improvements in skeletal muscle mitochondrial subpopulation function and decreases in circulating oxidant status markers during weight loss from an obese (7 to 8) to moderate (5) body condition score (BCS). Additionally, we hypothesized improvements in morphometric measurements, circulating metabolic …
Characterizing Peripheral Cellular And Humoral Immune Responses To Haemonchus Contortus In Sheep, Jesica Rae Jacobs
Characterizing Peripheral Cellular And Humoral Immune Responses To Haemonchus Contortus In Sheep, Jesica Rae Jacobs
Graduate Theses, Dissertations, and Problem Reports (ETD)
Gastrointestinal nematode parasitism is the most widely reported health concern among sheep producers worldwide. The most concerning of which is Haemonchus contortus; a blood-sucking nematode found in the abomasum of sheep. Worldwide anthelminthic resistance has prompted exploration of alternative methods of parasite control. Many studies have shown St. Croix hair sheep posses an immunologically mediated resistance to H. contortus infection, however no studies have utilized a true parasite naive animal for immune characterization. In this study, development of peripheral immune response was characterized in parasite resistant St. Croix lambs and parasite susceptible Suffolk crossbred Lambs. Lambs were separated into three …
The Effects Of Artificial Photoperiod On Age At Puberty In Fall-Born Ewe Lambs, Matthew Lewis Deacon
The Effects Of Artificial Photoperiod On Age At Puberty In Fall-Born Ewe Lambs, Matthew Lewis Deacon
Graduate Theses, Dissertations, and Problem Reports (ETD)
A study, conducted in two replicates, examined the effects of an artificial photoperiod on puberty in fall-born ewe lambs. Replicate I was initiated in December 2011 with prepubertal Dorset ewe lambs (n = 44). Replicate II was initiated beginning in December 2012 and included prepubertal Dorset, Suffolk x Dorset and Texel x Dorset ewe lambs (n = 52). All lambs were weighed at the initiation of each replicate and randomized to one of two treatments, control or treated, based on age, weight, breed and type of birth and rearing. Control ewe lambs were housed in a barn with exposure to …
Evaluation Of A Nurse-Led Intervention To Improve Palliative Care For Select Medical Intensive Care Patients, Lori A. Constantine
Evaluation Of A Nurse-Led Intervention To Improve Palliative Care For Select Medical Intensive Care Patients, Lori A. Constantine
Graduate Theses, Dissertations, and Problem Reports (ETD)
Body: Twenty percent of all Americans die in an intensive care unit (ICU) or shortly thereafter. For most of these patients, relentless and distressing symptoms are commonplace. Review of local data reveals opportunity for improvement in the palliative care offered to hospitalized patients. To address this need for improved palliative care, the Volunteer Hospital Association's (VHA) Communication and Care Bundle will be implemented in a local medical ICU, using Roger's (2003) diffusion of innovations (DOI) as the theoretical base.;Evaluation: Communication and Care Bundle within a given time frames, for select medical ICU patients. ICU length of stay and patient mortality …