Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Graduate Theses, Dissertations, and Problem Reports (ETD)

Discipline
Keyword
Publication Year
File Type

Articles 2281 - 2310 of 2809

Full-Text Articles in Entire DC Network

Regulation Of P-Glycoprotein And Abcp Transporters, Dhanashri Ramkrishna Kolwankar May 2003

Regulation Of P-Glycoprotein And Abcp Transporters, Dhanashri Ramkrishna Kolwankar

Graduate Theses, Dissertations, and Problem Reports (ETD)

The placenta plays an important role in modulating xenobiotic passage from mother to fetus. Smoking is known to induce cytochrome P450 1Al (CYP1A1) expression in the placenta, however its effect on P-glycoprotein (P-gp) and ABC transporter in placenta (ABCP) levels in placenta is not known. In-vitro studies in hepatocytes have reported induction of P-gp mRNA by some polycyclic aromatic hydrocarbons. To examine whether smoking can affect placental P-gp and ABCP, their expression and activity were determined in placentas from smokers and non-smokers. Uptake of [3H]-vinblastine and [3H]-mitoxantrone was used to measure P-gp and ABCP function, respectively and CYP1A1 activity (positive …

Go to article

Population Dynamics Of Selected Lepidoptera Associated With Gypsy Moth [Lymantria Dispar (L.)] In Central Appalachia, Sandra Raimondo May 2003

Population Dynamics Of Selected Lepidoptera Associated With Gypsy Moth [Lymantria Dispar (L.)] In Central Appalachia, Sandra Raimondo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the wealth of research conducted on gypsy moth [(Lymantria dispar L.)(Lymantriidae: Lepidoptera)] populations dynamics, quantitative analysis of the native lepidopteran community in which gypsy moth has become naturalized is extremely limited. This study examined the population dynamics of native Lepidoptera in two gypsy moth management areas in West Virginia and Virginia. Data were collected between 1995 and 2001 on 18 plots distributed on two national forests (Monongahela National Forest, WV and George Washington National Forest, VA). Four lepidopteran sampling techniques (gypsy moth egg mass surveys, canvas bands and foliage clippings for larval sampling, and light trap samples for adults) …

Go to article

Seasonal Movement And Macro-Habitat Use Of Largemouth Bass (Micropterus Salmoides) In An Ohio River Navigation Pool, Jason Gregory Freund May 2003

Seasonal Movement And Macro-Habitat Use Of Largemouth Bass (Micropterus Salmoides) In An Ohio River Navigation Pool, Jason Gregory Freund

Graduate Theses, Dissertations, and Problem Reports (ETD)

Largemouth bass provide an important recreational fishery in the Ohio River. Our objectives were to determine critical over-wintering and spawning habitats of largemouth bass in the Belleville Pool of the Ohio River. We surgically implanted radio-transmitters in 39 adult largemouth bass and tracked them over a 23-month period. Our results demonstrate the importance of off-channel habitats in the life history of largemouth bass in large river systems. Sedimentation, resulting in a loss of embayment quality and surface area, is an important problem and thus merits increased attention. Restoration and protection efforts to improve largemouth bass fisheries in large river systems …

Go to article

Molecular Mechanisms Of G Protein-Receptor Coupling, Hongzheng Ma Jan 2003

Molecular Mechanisms Of G Protein-Receptor Coupling, Hongzheng Ma

Graduate Theses, Dissertations, and Problem Reports (ETD)

A variety of extracellular signals are transmitted into the cell interior by interactions with a superfamily of heptahelical cell surface receptors. Heterotrimeric G proteins mediate the signal transduction by coupling these receptors to intracellular effector proteins. The molecular mechanisms in G protein-receptor coupling processes are still not completely understood. In this project, two aspects of G protein-receptor coupling were examined: (1) the G protein-coupling properties of the five human muscarinic acetylcholine receptors (mAChRs); (2) a novel regulatory mechanism by a newly identified G protein signal regulator, Activator of G-protein Signaling 3 (AGS3). To study the regulation of G protein-receptor coupling, …

Go to article

A New Model For The Assessment Of Nonpoint Source Pollution Using Gis And Virtual Intelligence., Seyed Razi Gaskari Jan 2003

A New Model For The Assessment Of Nonpoint Source Pollution Using Gis And Virtual Intelligence., Seyed Razi Gaskari

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today, nonpoint source (NPS) pollution remains as the leading cause of water quality problems in the United States (USEPA, 1996). The most common NPS pollutants are sediment (i.e. total suspended solids, TSS) and nutrients (i.e. total nitrogen, TN). These wash into water bodies from agricultural land, construction sites, and other areas of disturbance. To develop the virtual non-point source assessment system (VNPSAS) model, monitoring gauges were selected for data extraction from West Virginia and also the western part of Virginia. A geographic information system (GIS) was used as a productive environment for data extraction and spatial analysis. The information for …

Go to article

Sequence And Distribution Of The Neotyphodium Lolii Peptide Synthetase Gene Ipsa., Prapassorn Damrongkool Jan 2003

Sequence And Distribution Of The Neotyphodium Lolii Peptide Synthetase Gene Ipsa., Prapassorn Damrongkool

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neotyphodium lolii is a fungal endophyte of perennial ryegrass (Lolium perenne). Like related endophytes of other grasses, it increases the grass host's fitness. Endophyte-infected grasses have greater resistance to biotic and abiotic stress, and thus are highly competitive. However, the endophytes also produce toxins that cause toxicoses in grazing animals. N. lolii produces a large amount of lolitrems, which are thought to cause ryegrass staggers in mammals. The fungus also produces a smaller amount of a highly toxic ergopeptine ergovaline. In this dissertation, I have characterized, sequenced and surveyed the distribution of peptide synthetase gene IpsA that is required for …

Go to article

A Study Of Classic Films And Their Portrayal Of The Mentally Ill., Allison Marie Plants Jan 2003

A Study Of Classic Films And Their Portrayal Of The Mentally Ill., Allison Marie Plants

Graduate Theses, Dissertations, and Problem Reports (ETD)

The media have an enormous influence on the way the public views mental illness. Their frequent and often flawed portrayals of the mentally ill cause negative feelings to develop. Media framing plays a powerful role in the portrayal of the mentally ill. The way the media portray the mentally ill directly affects how they are viewed in real life.

Go to article

Apoptosis-Necrosis Paradox: Implications To The Pathogenesis Of Inflammatory Disorders., Djordje Medan Jan 2003

Apoptosis-Necrosis Paradox: Implications To The Pathogenesis Of Inflammatory Disorders., Djordje Medan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The first section of this work addressed the relationship between apoptotic and necrotic cell death and their role in inflammatory lung injury induced by endotoxin. Pulmonary administration of lipopolysaccharide (LPS) into the lung of mice caused a time-dependent increase in the levels of pro-inflammatory cytokine TNF-α and inflammatory cell influx in the bronchoalveolar lavage (BAL) fluids. Control mice showed only resident alveolar macrophages with no apoptosis as determined by terminal deoxyribonucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) and histone-bound DNA fragmentation assays. In contrast, LPS-treated mice showed clear apoptosis of BAL cells. Microscopic studies confirmed the presence of apoptotic neutrophils and …

Go to article

A Qualitative And Quantitative Analysis Of Stereotypical Representations On Television Dramas., Rachel Massanet Jan 2003

A Qualitative And Quantitative Analysis Of Stereotypical Representations On Television Dramas., Rachel Massanet

Graduate Theses, Dissertations, and Problem Reports (ETD)

The stereotyping of minorities on television and in films has been a prominent practice since the beginning of the media era. Although there has been an increase in the visibility of positive minority characters, the portrayal of some of these characters is still negatively stereotypical. The importance in this research lies in the fact that negative representation can cause viewer’s to make false assumptions about minority cultures, which in turn can negatively impact society. People from homogenous areas are introduced to these images and see them as real. The research in this paper shows that in the television drama world, …

Go to article

The Effects Of Superimposing The Same Vs. Qualitatively Different Food On Responding Maintained By A Variable-Interval Schedule Of Reinforcement., Jessie-Sue Milo Jan 2003

The Effects Of Superimposing The Same Vs. Qualitatively Different Food On Responding Maintained By A Variable-Interval Schedule Of Reinforcement., Jessie-Sue Milo

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the effects of response-independent delivery of same vs. qualitatively different food than the reinforcer on rats' lever pressing. During baselines, a variable-interval schedule delivered either pellets or milk. A fixed-time schedule then was superimposed which delivered either response-independent pellets or milk. The order of reinforcer and responseindependent food presentation was counterbalanced across subjects, such that in four different conditions each rat was exposed to each combination of reinforcer and response-independent food presentations. Similarity of the response-independent food to the reinforcer did not differentially disrupt response rates. Response-independent milk decreased response rates more than response-independent pellets. Postreinforcement pausing …

Go to article

Impact Of A Grazing Management Regime As An Internal Parasite Control In Sheep Managed Under Usda's National Organic Program: A Case Study., Bernard James O'Doherty Jan 2003

Impact Of A Grazing Management Regime As An Internal Parasite Control In Sheep Managed Under Usda's National Organic Program: A Case Study., Bernard James O'Doherty

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this study was to identify an effective internal parasite control for sheep managed under USDA's NOP. The case study involved the sheep flock of the WVU Organic Farming Systems Experiment over a period of 27 months, March 2001 to July 2003. A 3-day-duration/5-week-rest grazing regime was implemented to control internal parasites. The parasite burden was measured by fecal analysis (fecal egg counts). Prior to implementation of the prescribed grazing regime, parasite levels were moderate and comparable to conventionally managed flocks in the local area. After implementation of prescribed grazing regime, parasite levels were lowered to almost undetectable …

Go to article

An Analysis Of West Virginia Lamb Marketing Alternatives., Doolarie Singh-Knights Jan 2003

An Analysis Of West Virginia Lamb Marketing Alternatives., Doolarie Singh-Knights

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study provides a comprehensive overview of the current lamb production and marketing environments in WV in view of current and prospective industry changes. Production and marketing inefficiencies, declining demand together with stiff competition from foreign supplies are significant challenges facing the sheep industry. A survey was developed and administered to WV sheep producers to characterize their production and marketing environment, as well as their marketing needs and concerns. Lamb sale transactions from livestock auctions markets in WV were analyzed to determine price trends and price discovery models in the WV sheep industry. The SAS (Statistical Analysis System, 1985) Kruskal-Wallis …

Go to article

Second Natures: Media, Masculinity And The Natural World In Twentieth-Century American Literature And Film., Jeanne E. Hamming Jan 2003

Second Natures: Media, Masculinity And The Natural World In Twentieth-Century American Literature And Film., Jeanne E. Hamming

Graduate Theses, Dissertations, and Problem Reports (ETD)

This multidisciplinary dissertation examines the cultural anxieties associated with masculine identity in relation to both technology and nature in key literary texts and contemporary films of the twentieth-century: Ray Bradbury's “The Veldt” and The Martian Chronicles, Philip K. Dick's Do Androids Dream of Electric Sheep?, James Dickey's Deliverance , Don DeLillo's White Noise, Fight Club, American Psycho, Brazil, 12 Monkeys, and Dark City. Exploring the theoretical intersections of technoculture, ecocriticism, and gender studies, this dissertation analyzes the relationship between masculine identity and nature, as it is mediated by American technoculture. This relationship is marked by a discernible cultural malaise—a sense …

Go to article

Experimental Support For The Use Of Story Telling To Guide Behavior: The Effects Of Story Telling On Multiple And Mixed Fixed Ratio (Fr) /Differential Reinforcement Of Low Rate (Drl) Schedule Responding., Michelle Heffner Jan 2003

Experimental Support For The Use Of Story Telling To Guide Behavior: The Effects Of Story Telling On Multiple And Mixed Fixed Ratio (Fr) /Differential Reinforcement Of Low Rate (Drl) Schedule Responding., Michelle Heffner

Graduate Theses, Dissertations, and Problem Reports (ETD)

Story telling is universal, and the significance of stories may lie in their ability to guide behavior. An informal analysis of story telling suggests that stories provide a model of behavior, establish motivation, and stimulate the development of self-generated rules. In psychotherapy, stories illustrate points, suggest solutions, improve client insight, increase motivation, and establish rapport (Barker, 1996; Zeig, 1980). Despite the popular use of stories across theoretical orientations and treatment approaches, it is not clear if stories facilitate behavior change. Observational and correlational data suggest that stories may guide behavior, but there is no experimental support for these findings. The …

Go to article

Gender, Gender Role, And Gender Role-Orientation Of Exercise Task: Effects On Cardiovascular Reactivity And Confidence., Andria Leigh Doyle Jan 2003

Gender, Gender Role, And Gender Role-Orientation Of Exercise Task: Effects On Cardiovascular Reactivity And Confidence., Andria Leigh Doyle

Graduate Theses, Dissertations, and Problem Reports (ETD)

The present study was conducted to examine gender and gender role differences in cardiovascular reactivity and confidence in relation to performing gender role-oriented exercise tasks. Sixty-four participants were selected to view videos of male and female models performing two exercise tasks [baton twirling (the feminine gender role-oriented task) and martial arts (the masculine gender role-oriented task)]. Participants then completed the exercise tasks while following along with the same video models. Heart rate (HR) and systolic and diastolic blood pressure (SBP and DBP) were measured during experimental conditions. Participants completed questionnaires to assess their level of confidence to perform each exercise …

Go to article

Uric Acid As An Antioxidant And The Effect Of Changes In Plasma Uric Acid Concentrations On Broiler Susceptibility To Ascites, And, The Effect Of Diet And Strain On Growth, Feed Efficiency, And Amino Acid Retention In Hybrid Bluegill., Beth M. Stinefelt Jan 2003

Uric Acid As An Antioxidant And The Effect Of Changes In Plasma Uric Acid Concentrations On Broiler Susceptibility To Ascites, And, The Effect Of Diet And Strain On Growth, Feed Efficiency, And Amino Acid Retention In Hybrid Bluegill., Beth M. Stinefelt

Graduate Theses, Dissertations, and Problem Reports (ETD)

Study one investigated the ability of uric acid (UA) to scavenge reactive oxygen species (ROS) and the ability of UA to protect against ROS-mediated damage. Hydroxyl and superoxide radical ESR signals were reduced by addition of UA (P< 0.05). UA prevented lipid peroxidation in RAW 264.7 cells exposed to silica (P< 0.015). UA inhibited hydroxyl-mediated damage to λ Hind III DNA. The objective of study two was to determine the effect of changes in plasma UA (PUA) on growth and ascites development in broilers. Chicks were fed a grower diet supplemented with 0.5 moles inosine/kg feed to raise PUA, 15 mg allopurinol/kg body weight/day to lower PUA, or a control diet. Birds were housed in two environmental chambers; one had conditions to promote ascites while the second was held at standard conditions. Although dietary treatment had an effect on PUA, no effect of diet on performance or development of ascites was observed.

Go to article

An Examination Of The Habitat Requirements Of The Endangered Virginia Northern Flying Squirrel (Glaucomys Sabrinus Fuscus) By Assessing Nesting Sites, Habitat Use And The Development Of A Habitat Model., Jennifer M. Menzel Jan 2003

An Examination Of The Habitat Requirements Of The Endangered Virginia Northern Flying Squirrel (Glaucomys Sabrinus Fuscus) By Assessing Nesting Sites, Habitat Use And The Development Of A Habitat Model., Jennifer M. Menzel

Graduate Theses, Dissertations, and Problem Reports (ETD)

Little is known about nest tree use of the endangered Virginia northern flying squirrel. I compared characteristics of nest trees used by Virginia northern flying squirrels with randomly selected trees during summer and fall of 2000 and 2001. I tracked 13 squirrels to 59 nest trees. Sixty-nine percent of the nests were in cavities and 31% were leaf nests. Yellow birch, black birch and American beech were selected for nest trees more than expected. Nest trees were in larger and taller trees than trees in the surrounding area. There were a significant number of trees located near skidder and hiking …

Go to article

Portmanteau, Peggy Ann Edwards Jan 2003

Portmanteau, Peggy Ann Edwards

Graduate Theses, Dissertations, and Problem Reports (ETD)

Portmanteau is a blend of two words incorporated to make a new meaning. In my painting I combine two animals to make a new life form. The weak, defenseless animals get armament and the fierce, dominant carnivores are made less threatening so that man will not find it necessary to destroy them. My animals are hybrids and with hybridity anything is possible because hybridity is about making meaning without being bound by actuality. My hybrid animals are whimsical and funny but I create them for a serious reason. I want people to look at them and see that they are …

Go to article

An Evaluation Of Vegetation And Wildlife Communities In Mitigation And Natural Wetlands Of West Virginia., Collins K. Balcombe Jan 2003

An Evaluation Of Vegetation And Wildlife Communities In Mitigation And Natural Wetlands Of West Virginia., Collins K. Balcombe

Graduate Theses, Dissertations, and Problem Reports (ETD)

The goal of this study was to evaluate the relative success of mitigation wetlands in West Virginia in supporting vegetation, invertebrate, and wildlife communities. Eleven mitigation wetlands were compared to 4 naturally occurring reference wetlands. For all vegetation species sampled, species richness (no. species/quadrat; P = 0.035), evenness (P = 0.033), and diversity (P = 0.025) were higher in mitigation than reference wetlands. Mean weighted averages per quadrat were similar between mitigation and reference wetlands (P = 0.242). Differences in vegetation composition between wetland types were reflected through ordination using Detrended Correspondence Analysis (DCA). Both mitigation and natural wetlands met …

Go to article

Modeling Direct Farm Marketing In West Virginia: A Spatial, Policy, And Profitability Analysis., Jesse Ernest Gandee Jan 2003

Modeling Direct Farm Marketing In West Virginia: A Spatial, Policy, And Profitability Analysis., Jesse Ernest Gandee

Graduate Theses, Dissertations, and Problem Reports (ETD)

This analysis uses economic modeling techniques to analyze direct farm marketing sales, profits, and public policy in West Virginia. To investigate factors that affect county direct farm marketing, the impact of consumer demographic, land, and spatial variables upon county direct farm marketing sales is tested. The results reveal that income, education, land characteristics, and adjacent metropolitan areas influence direct farm marketing sales. An Input-Output (I-O) model is used to analyze a direct farm marketing public policy in the Mountain State. The results from the model portray a disproportionate amount of West Virginia food production contributing to marketing services and a …

Go to article

Ergot Alkaloids And Herbivory In Model Animals, And, Variation In An Ergot Alkaloid Biosynthesis Gene., Andrea B. Sedlock Jan 2003

Ergot Alkaloids And Herbivory In Model Animals, And, Variation In An Ergot Alkaloid Biosynthesis Gene., Andrea B. Sedlock

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neotyphodium spp. are members of the fungal family Clavicipitaceae that grow endophytically within several important forage grasses, imparting benefits to the host grass. Several species produce toxic ergopeptines that are thought to adversely affect mammalian health. Inclusion of 1% agar in endophyte-infected seed diets was found to ameliorate some of the consequences of feeding endophyte-infected seeds to mice. Based upon feeding preferences of rabbits and mice, it seems that ergot alkaloids are not critical factors for deterring feeding on endophyte-infected plants by these animals, but the presence of the fungus appeared to deter rabbits. Intron-containing fragments of lysergyl peptide synthetase …

Go to article

Aquatic-Terrestrial Linkages In Appalachian Streams: Influence Of Riparian Inputs On Stream Habitat, Brook Trout Populations, And Trophic Dynamics., John A. Sweka Jan 2003

Aquatic-Terrestrial Linkages In Appalachian Streams: Influence Of Riparian Inputs On Stream Habitat, Brook Trout Populations, And Trophic Dynamics., John A. Sweka

Graduate Theses, Dissertations, and Problem Reports (ETD)

Riparian zones play a major role in the structure and function of headwater stream ecosystems. Inputs of leaf litter from riparian zones are the primary energy source for secondary production in these streams and inputs of large woody debris (LWD) help shape stream habitat. Riparian zones of Appalachian streams were degraded by past timber harvest activities. Streamside management zones (SMZs) now protect the riparian zone by limiting timber harvest activities near streams. The objective of this study was to examine aquatic-terrestrial linkages and how habitat and food resources influence brook trout ( Salvelinus fontinalis) populations in Appalachian streams. LWD was …

Go to article

The Rescaling Of The Innu., Janice M. Hardin Jan 2003

The Rescaling Of The Innu., Janice M. Hardin

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis examines the interaction between the Innu of Labrador, an indigenous people in Canada, and the state since the middle twentieth century. The changing spatiality of this interaction can be understood through the analysis of the politics of scale. The scale of Innu social practices has historically been wide-ranging and fluid. Since the 1950s, the state has been increasingly involved in development projects on the lands the Innu have traditionally occupied. The state’s solution to the unwanted presence of the Innu was to settle, and therefore rescale, them in two settlements in the 1960s. The Innu’s struggle to regain …

Go to article

Surface Mines As Landscape Features: Contrasting Microclimate And Forest Composition Among Open, Edge And Interior., Sheila A. Kazar Jan 2003

Surface Mines As Landscape Features: Contrasting Microclimate And Forest Composition Among Open, Edge And Interior., Sheila A. Kazar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Surface mining disturbs thousands of hectares of forest every year in the Appalachian region resulting in the creation of forest edges. In this study, variability in air temperature and moisture, soil temperature and moisture, photosynthetically active radiation and wind velocity are quantified for open, edge and interior environments of reclaimed surface mines in north central West Virginia. Tree species composition, soil pH and compaction were also examined. Mean daily air and soil temperature, wind velocity and photosynthetically active radiation are lower, and soil and air moisture higher inside the forest than in the open or at the edge. Soil temperature, …

Go to article

Particle-Induced Pulmonary Inflammation And Fibrosis: Role Of Inflammatory Mediators In The Initiation And Progression Of Occupational Lung Disease., Patti C. Zeidler Jan 2003

Particle-Induced Pulmonary Inflammation And Fibrosis: Role Of Inflammatory Mediators In The Initiation And Progression Of Occupational Lung Disease., Patti C. Zeidler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pulmonary fibrosis due to acute or chronic occupational exposures is the leading cause of work-related illness in the U.S. according to the 2002 report by the American Lung Association. Asbestosis and silicosis are well described lung diseases that result from asbestos fiber or crystalline silica inhalation, respectively. This study investigated the underlying lung inflammatory and fibrotic mechanisms involved in the response caused by exposure to crystalline silica (α-quartz) or JM-100 glass, chrysotile asbestos, and ceramic fibers. Two topics were investigated: (1) The role of fiber dimension and chemical composition in the response of alveolar macrophages (AMs). (2) The role of …

Go to article

Consumer Preferences For Genetically Modified Fish And Seafood: An Econometric Approach., Brian S. Bennett Jan 2003

Consumer Preferences For Genetically Modified Fish And Seafood: An Econometric Approach., Brian S. Bennett

Graduate Theses, Dissertations, and Problem Reports (ETD)

Genetic modification (GM) is a rapidly growing technology that can improve productivity and profitability for producers; however consumer acceptance of this technology is not fully understood, particularly as it relates to fish and seafood. The purpose of this study is to evaluate consumer perceptions of GM foods in general, and fresh fish and seafood in particular. A phone survey of a random sample of US households was conducted. A qualitative choice (Logit) model was used for estimation. LIMDEP was the computer package used to analyze the data. The marginal effects were also estimated. Results show that older, higher income, non …

Go to article

A Study Of The Sexual Content In Top-Rated Shows Among Teenage Audiences For The 1998-1999 Television Season., Shannon M. Summers Jan 2003

A Study Of The Sexual Content In Top-Rated Shows Among Teenage Audiences For The 1998-1999 Television Season., Shannon M. Summers

Graduate Theses, Dissertations, and Problem Reports (ETD)

This project examines the sexual content in top-rated shows amongst teenage audiences. Cultivation theory and social learning theory (SLT) are the basis of the study to help determine what impact sexual portrayals on television have on this young audience. Scripts from the top shows from one television season were examined to determine first, how much sexual content existed in the scripts, and second, what type of sexual content it was in the form of gender-based dyadic communication. The most significant criteria analyzed was whether or not the content glorified sex or showed sexual consequences. The study found that the majority …

Go to article

The Relationship Between Self-Efficacy Expectations And Career-Choice., Geraldine January Jan 2003

The Relationship Between Self-Efficacy Expectations And Career-Choice., Geraldine January

Graduate Theses, Dissertations, and Problem Reports (ETD)

Analysis of responses from (N = 64) undergraduate students enrolled in Learning Strategies and Orientation courses on the Career Decision Making Self-Efficacy scale and the Occupational Self-Efficacy Scale, revealed that participants who selected male-dominated careers scored higher on the goal selection subscale compared to participants in the female-dominated group. Similar results were observed for career decision-making, self-efficacy and major status. As predicted, the scores for males on the OSES indicated that males reported equally higher scores for male and female-dominated occupations, whereas females reported higher self-efficacy for female-dominated occupations compared to male-dominated occupations.

Go to article

An Advanced Data Acquisition System And Noise Analysis On The Aluminum Reduction Process., Congxia Dai Jan 2003

An Advanced Data Acquisition System And Noise Analysis On The Aluminum Reduction Process., Congxia Dai

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Aluminum reduction process is a nonlinear, time varying electro-chemical process, during which alumina is electrolyzed to produce molten aluminum. Al2O3 A main concern of the aluminum reduction process is the ‘Current Efficiency’-an indicator of the productivity of aluminum reduction cells. How to achieve higher current efficiency with lower energy consumption has always been a central objective of aluminum reduction process control in aluminum reduction industry. Noise is generally considered hostile to cell Current Efficiency. Therefore noise control is an important issue in commercial cell automatic control system. A key contribution of this research is the examination of the effects …

Go to article

The Effect Of L-Dopa On Contrast Sensitivity In Normal Subjects Using Functional Magnetic Resonance Imaging., Saloni Sharma Jan 2003

The Effect Of L-Dopa On Contrast Sensitivity In Normal Subjects Using Functional Magnetic Resonance Imaging., Saloni Sharma

Graduate Theses, Dissertations, and Problem Reports (ETD)

Dopaminergic agonists such as L-dopa may improve visual sensitivity in subjects with abnormal vision, and possibly in subjects with normal vision. The aim of this study was to evaluate the effects of L-dopa on the contrast sensitivity function (CSF) psychophysically and physiologically in 14 healthy subjects. Subjects received either 250mg L-dopa/25mg Carbidopa or placebo. Functional magnetic resonance imaging (fMRI) and perceptual performance data was collected while subjects viewed stimuli over a range of spatial frequencies, at threshold (barely visible) contrast. The results suggest that contrast sensitivity did not significantly improve after L-dopa administration, and stimulus induced neural activation in visual …

Go to article

First Prev Next Last