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An Investigation Into Use Of The Freshwater Gastropod Viviparus As A Recorder Of Past Climatic Change, Melanie Bugler Jan 2011

An Investigation Into Use Of The Freshwater Gastropod Viviparus As A Recorder Of Past Climatic Change, Melanie Bugler

Other Faculty of Science and Engineering Theses

Through isotopic analysis of Viviparus lentus (V. lentus) a high resolution record of stepwise changes in δ18O and δ13C across the Eocene / Oligocene transition and Oi-1 glacial maximum has been produced for the continental Solent Group strata, Isle of Wight (UK). Comparison of this V. lentus δ18Ocarb. record with high resolution marine δ18Ocarb. records shows that similar isotopic shifts exist in the near coastal continental and marine realms. In order to calculate palaeotemperatures from this new continental record an investigation into the biology of modern Viviparus and its effect on the isotopic composition of its shell carbonate was undertaken. …

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Optimisation Of The Rearing Diets For Early Life Stages Of The European Lobster, Homarus Gammarus, To Enhance Growth, Survival And Health Using Biotic Dietary Supplements., Carly Daniels Jan 2011

Optimisation Of The Rearing Diets For Early Life Stages Of The European Lobster, Homarus Gammarus, To Enhance Growth, Survival And Health Using Biotic Dietary Supplements., Carly Daniels

Other Faculty of Science and Engineering Theses

The series of experiments that comprises this thesis consider the use of prebiotics and probiotics to improve success in European lobster Homarus gammarus culture. Research was conducted at the National Lobster Hatchery and The University of Plymouth, UK between April 2007 and March 2010. Great potential was revealed for the application of biotics as dietary supplements in the culture of larval and juvenile H. gammarus. Specific biotics, namely; prebiotic mannon oligosaccharide (MOS) and probiotic Sanolife® (Bacillus spp.) were revealed to increase growth and survival during the culture of early lobster life stages. Lobsters that showed enhanced development and/or survival were …

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Models For Evaluation Of Supply Chain Risk With Application To Healthcare Management, Ford Guangfu Zeng Jan 2011

Models For Evaluation Of Supply Chain Risk With Application To Healthcare Management, Ford Guangfu Zeng

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Over the past two decades, supply chain management has come to be a key component of organization competitiveness and effectiveness. In the same period, most organizations have put a great deal of effort into improving their own and their supplier's supply chain performance. To a large extent, much of this effort has been aimed at improving the efficiency of supply chain operations. However, organizations have ignored or played down the risks from supply chain disruptions when developing supply strategies, which focus on cost reduction. It is proposed, therefore, that one such standard measure should measure the risk involved with organizations …

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Mathematical Optimization Techniques For Managing Selective Catalytic Reduction For Coal-Fired Power Plants, Passakorn Phananiramai Jan 2011

Mathematical Optimization Techniques For Managing Selective Catalytic Reduction For Coal-Fired Power Plants, Passakorn Phananiramai

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Coal is one of the most important energy sources in the U.S. However, it is also one of the biggest air polluters where the major emissions generated from coal combustion are oxides of nitrogen (NOx). NOx leads to ozone formation and make people more susceptible to respiratory illness. The US Environmental Protection Agency (EPA) has steadily tightened the regulation for NOx emissions that can be discharged into the atmosphere. Many techniques and technologies can all assist with NOx removal. However, to meet upcoming EPA mandates, more aggressive technique such as Selective Catalytic Reduction (SCR) is highly recommended. SCR is an …

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Risk Behavior, Personal Assets And Social Support In The Lesbian And Gay Adult Populations: How These Contribute To Suicidality?, Elizabeth Sabre Jan 2011

Risk Behavior, Personal Assets And Social Support In The Lesbian And Gay Adult Populations: How These Contribute To Suicidality?, Elizabeth Sabre

Social Work Theses - Archive

The purpose of this exploratory study is threefold 1) to assess whether risk factors for suicide among LG individuals older than age 18 are the same as those among heterosexual individuals; 2) to assess whether suicidality decreases for the LG population; and 3) to identify what factors are associated with this decrease if there is one. Are the risk behaviors that are correlated with suicide risk among heterosexuals comparably correlated among LG individuals? What is the relationship between developmental assets and suicide risk among LG? The research was done online, through social networking sites. The findings were that the main …

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Modernization And Contraception In Kenya From 1998 To 2008-2009., Diana Alaka Opollo Jan 2011

Modernization And Contraception In Kenya From 1998 To 2008-2009., Diana Alaka Opollo

Social Work Dissertations - Archive

The objective of this study is to examine the factors that influence contraceptive use in Kenya. More specifically, the study focuses on the determinants of membership in two categories of contraceptive use: modern contraception methods and other contraception methods. Additionally, the study will describe the differences in contraceptive use between 1998 and 2008-2009 and attempt to examine what factors caused and propelled changes. In order to explain the categorical variations, this study uses two theories: modernization theory and human capital theory. In describing changes between 1998 and 2008-2009, this study will examine both individual as well as societal factors related …

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Understanding And Promoting The Notion Of Sustainable Development In Countries Of The Developing World, Aminata Lambratu Wurie Jan 2011

Understanding And Promoting The Notion Of Sustainable Development In Countries Of The Developing World, Aminata Lambratu Wurie

Social Work Theses - Archive

God created all humans equal and we all deserve the opportunity to have our basic needs met. This thesis discusses the fundamentals of sustainable development and explains the importance of achieving these measures in order to keep us humans safe, healthy, and prosperous and our Earth functioning properly. The purpose of this paper is to stimulate conversation and action about the state of our planet and its inhabitants; regarding our environmental, social, and economic wellbeing. This work particularly focuses on countries where people are suffering, and fighting to solve extreme poverty, amidst their wealth of blessings. It confers special attention …

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Acculturative Stress And Post-Traumatic Stress Disorder Among Latino And Asian Immigrants, Yajaira Villeda Jan 2011

Acculturative Stress And Post-Traumatic Stress Disorder Among Latino And Asian Immigrants, Yajaira Villeda

Social Work Theses - Archive

Mental health needs for immigrants are complicated by previous trauma and living in a new country. This study examined acculturative stress (AS) and post-traumatic stress disorder (PTSD) among immigrants by conducting a secondary data analysis of the 2002 to 2003 National Latino American and Asian American Study (N=3,259). The primary acculturative stressors identified were limited contact with family and friends, difficulties interacting with others due to language limitations and not receiving the same respect as in the country of origin. Latinos experienced more acculturative stress than Asians. Measures of sex, age, race, education, age of immigration, length of stay in …

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The Effects Of Personal Trauma History And Working With Clients With Similar Trauma On Well-Being Among Mental Health Counselors, Joel Chaverri Jan 2011

The Effects Of Personal Trauma History And Working With Clients With Similar Trauma On Well-Being Among Mental Health Counselors, Joel Chaverri

Social Work Theses - Archive

Several studies have researched burnout, compassion fatigue, secondary trauma, vicarious trauma, and shared trauma of practicing mental health professionals. Yet few have focused directly on the impact of personal trauma history on well-being. This study was an online exploratory design investigating the relationships among counselor personal trauma history, well-being, and the effects of seeing clients with similar trauma. Personal trauma history was determined through a demographical survey, and well-being analyzed using the Oxford Happiness Questionnaire (OHQ) and Posttraumatic Stress Disorder Checklist (PCL). The study examined several demographic variables to determine whether a model exits to predict counselor well-being. While the …

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Determinants Of Modern Contraceptive Use In Cameroon From 1991 To 2004, Consoler Tenug Teboh Jan 2011

Determinants Of Modern Contraceptive Use In Cameroon From 1991 To 2004, Consoler Tenug Teboh

Social Work Dissertations - Archive

The purpose of this research is to examine the determinants of contraceptive use among women ages 15-49 of childbearing age (WCA) and to describe the compositional and processual changes that have taken place in Cameroon between 1991 and 2004. The study constituted a sample size of 3,871 and 10,656 15 to 49 year old women of childbearing from 1991 and 2004 Cameroon Demographic and Health Survey datasets respectively. Regression results confirmed that there was considerable support for the hypotheses in 1991 and 2004 except for age at first marriage which was significant but contradictory to the direction proposed in the …

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Personal And Organizational Factors That Influence The Likelihood That Adult Protective Services Workers Will Remain On The Job Long-Term, Traci Alisia Perry Jan 2011

Personal And Organizational Factors That Influence The Likelihood That Adult Protective Services Workers Will Remain On The Job Long-Term, Traci Alisia Perry

Social Work Dissertations - Archive

A secondary data analysis will be used to examine data that was originally collected as part of a cross-sectional survey of adult protective service workers from May 2005 to June 2007. The purpose of this study to gain a better understanding of the socio-demographic and organizational factors that may influence the decision of APS workers to remain on the job in state, public welfare agencies. Data will be analyzed from a sample of 673 APS workers in Texas who completed questionnaires after completing classroom and field training in the Protective Services Training Institute. Hierarchical multiple regression and moderation data analyses …

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Us Poets Laureate: A Literary And Cultural History, Toni M. Holland Jan 2011

Us Poets Laureate: A Literary And Cultural History, Toni M. Holland

English Dissertations - Archive

In 1985 the US Congress changed the title of Consultant in Poetry to the Library of Congress, which was created in 1937, to Poet Laureate Consultant in Poetry. The significance in the change is a signal to enhance awareness of American poetry to the general reading public. This dissertation is an initial look at these poets who from a government-sponsored platform represent American letters. The high profile of the position allows for a means by which the role of the poet is performed as an ambassador of poetry. Who is selected to represent the nation, how each laureate's work is …

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The Commentary On Female Self-Discipline In Susanna Rowson's Charlotte Temple And Hannah Webster Foster's The Coquette, Jin Kim Jan 2011

The Commentary On Female Self-Discipline In Susanna Rowson's Charlotte Temple And Hannah Webster Foster's The Coquette, Jin Kim

English Theses - Archive

This thesis studies Susanna Rowson's Charlotte Temple and Hannah Webster Foster's The Coquette to explore the embedded commentary about the discourse of female selfdiscipline in the two novels. As two best-selling seduction stories in post-Revolutionary America, Charlotte Temple and The Coquette have often been discussed in terms of what the authors assert about the cultural emphasis on women's virtue in the early Republic through their stories about a young woman suffering and dying as a result of seduction and abandonment. In this thesis, I argue that Rowson and Foster use their narratives to study the particular rhetoric of rewards that …

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Visualizing Economic Development With Arcgis Explorer, Andrew J. Milson, Megan L. Webster Jan 2011

Visualizing Economic Development With Arcgis Explorer, Andrew J. Milson, Megan L. Webster

Curriculum and Instruction Faculty Publications - Archive

No abstract provided.

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Sig En La Nube: Websig Para La Enseñanza De La Geografía, Andrew J. Milson Jan 2011

Sig En La Nube: Websig Para La Enseñanza De La Geografía, Andrew J. Milson

Curriculum and Instruction Faculty Publications - Archive

There is no doubt among most geography educators that GIS is an important tool for teaching and learning, but its use has been slowed by issues such as the cost of the software and the management of large spatial data files. The move to cloud computing is one trend that is promising for GIS in education. The "cloud" refers to a virtual network that provides many users with access to files, services, and applications. In this article I argue that cloud computing and WebGIS have the potential to transform geography education. I will describe three case studies that make use …

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Targeted Nanoparticles For Cancer Therapy: Promises And Challenge, Kytai Truong Nguyen Jan 2011

Targeted Nanoparticles For Cancer Therapy: Promises And Challenge, Kytai Truong Nguyen

Bioengineering Faculty Publications - Archive

No abstract provided.

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A Counterbalanced Cross-Over Study Of The Effects Of Visual, Auditory And No Feedback On Performance Measures In A Simulated Cardiopulmonary Resuscitation, Carolyn Cason, Cynthia Trowbridge, Susan M. Baxley, Mark D. Ricard Jan 2011

A Counterbalanced Cross-Over Study Of The Effects Of Visual, Auditory And No Feedback On Performance Measures In A Simulated Cardiopulmonary Resuscitation, Carolyn Cason, Cynthia Trowbridge, Susan M. Baxley, Mark D. Ricard

Kinesiology Faculty Publications & Presentations - Archive

Background: Previous research has demonstrated that trained rescuers have difficulties achieving and maintaining the correct depth and rate of chest compressions during both in and out of hospital cardiopulmonary resuscitation (CPR). Feedback on rate and depth mitigate decline in performance quality but not completely with the residual performance decline attributed to rescuer fatigue. The purpose of this study was to examine the effects of feedback (none, auditory only and visual only) on the quality of CPR and rescuer fatigue. Methods: Fifteen female volunteers performed 10 minutes of 30:2 CPR in each of three feedback conditions: none, auditory only, and visual …

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Verbal Behavior Of Mice And Men: Preference For Multiple Schedules Of Reinforcement As An Indicator Of The Evolution Of Verbal Behavior, Adrianne Eileen Lewis Jan 2011

Verbal Behavior Of Mice And Men: Preference For Multiple Schedules Of Reinforcement As An Indicator Of The Evolution Of Verbal Behavior, Adrianne Eileen Lewis

Psychology Theses - Archive

The evolution of verbal behavior in humans is believed to have appeared in the form of a complex operant behavior. According to behaviorists, the development verbal behavior which is exclusive to Homo sapiens could have been the result of an increased sensitivity to environmental stimuli in the form of another person. Previous animal research by Roark and Kopp (2008) found that sensitivity to environmental stimuli (as indicated by a preference to respond to a multiple schedule of reinforcement) and a preference to respond to additional cues could be a precursor to the evolution of verbal behavior in Sprague Dawley rats. …

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Competition Between Dorsal Root Reflex And Sympathetic Activity On Neurogenic Inflammation, Ailing Li Jan 2011

Competition Between Dorsal Root Reflex And Sympathetic Activity On Neurogenic Inflammation, Ailing Li

Psychology Theses - Archive

Neurogenic inflammation is caused by the inflammatory substances released from the peripheral terminals of afferent fibers. Vasodilation is one of the cardinal signs of neurogenic inflammation. It is thought that neurogenic inflammation is closely related with dorsal root reflex (DRR). DRRs are the antidromic action potentials that can be elicited by noxious stimuli and promote the release of inflammatory substances from the nerve terminals to facilitate neurogenic inflammation, like increase of the vasodilation. Some studies have proved that DRR can propagate bilaterally after being induced unilaterally. However, in our previous studies, we didn't observe significant increase of contralateral blood perfusion, …

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The Synthesis, Optical Properties And Biological Applications Of Mn2+, Cu2+ And Ag+ Doped Zns Nanoparticles, Lun Ma Jan 2011

The Synthesis, Optical Properties And Biological Applications Of Mn2+, Cu2+ And Ag+ Doped Zns Nanoparticles, Lun Ma

Physics Dissertations - Archive

As a typical wide-band gap IIB-VI semiconductor, ZnS and ZnS based materials have been extensively studied and used in a variety of applications such as electroluminescence and cathodoluminescence displays, solar cells, and other optoelectronic devices. The most attractive feature of ZnS is its ability to be doped with most transition and/or rare earth metal ions, which allows a wide range of tunable electronic and optical properties. The nanosized ZnS based particles perform unique physical and chemical properties that dramatically differ from their bulk materials due to quantum size confinement. In this dissertation, Mn2+, Cu2+ and Ag+ doped ZnS water soluble …

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Embeddedness Versus Isolation In Dissonance-Induced Attitude Change, Rebecca L. Robinson Jan 2011

Embeddedness Versus Isolation In Dissonance-Induced Attitude Change, Rebecca L. Robinson

Psychology Theses - Archive

The argument is made that embedded and isolated attitudes differ in the magnitude and effects of cognitive dissonance in an induced-compliance paradigm. Individuals who engaged in counterattitudinal advocacy with an embedded attitude experienced increased negative affect but decreased attitude change compared to those who engaged in counterattitudinal advocacy with an isolated attitude. Traditional choice condition effects were also found to be different when the attitude was embedded versus isolated, with the embedded attitude characterized by a reversal of the expected effects typically seen with isolated attitudes. It is argued that induced-compliance dissonance studies have historically been restricted to one-sided isolated …

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Fundamental Dynamical Equations For Two And Four-Component Spinors In Galilean And Minkowski Space-Time, Randal Huegele Jan 2011

Fundamental Dynamical Equations For Two And Four-Component Spinors In Galilean And Minkowski Space-Time, Randal Huegele

Physics Dissertations - Archive

A search for new fundamental (Galilean and Poincaré invariant) dynamical equations for free elementary particles represented by spinor state functions is conducted in Galilean and Minkowski space-time. A dynamical equation is considered as fundamental if it is invariant under the symmetry operations of the group of the spacetime metric and if its state functions transform like the irreducible representations of the group of the metric. It is shown that there are no Galilean invariant equations for two-component spinor wave functions thus the Pauli equation is not fundamental. It is formally proved that the Lévy-Leblond and Schrö̈dinger equations are the only …

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Religious Orientation And Responses To Anxiety: The Mediating Role Of Trust, Jennifer Rae Jones Jan 2011

Religious Orientation And Responses To Anxiety: The Mediating Role Of Trust, Jennifer Rae Jones

Psychology Dissertations - Archive

This research experimentally manipulated death anxiety and examined its effects on social, spiritual, and self-support. Individual level of religiosity was examined as a moderating variable. Various forms of trust were examined as potential mediators of the relationship between death anxiety and sources of support. The participants' ages ranged from 17-48 (M = 22.13 SD = 6.30), including 141 females and 39 males. A marginally significant interaction (p = .09) was found between experimental condition and participant level of religiosity in predicting general support by God, such that intrinsic religiosity predicted general support by God most strongly in the anxiety condition, …

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An Animal Model Of Conditioned Placebo Analgesia, Christopher T. Mcnabb Jan 2011

An Animal Model Of Conditioned Placebo Analgesia, Christopher T. Mcnabb

Psychology Theses - Archive

Research on placebo analgesia (PA) has called for the further elucidation of underlying neural mechanisms. Animal models allow for experimental manipulations that are not possible or feasible in human research such as brain lesions. Therefore, an animal model would be ideally suited to expand upon human PA literature; however, there is currently no animal model of PA. This study used a classical conditioning paradigm in an effort to induce an analgesic response to placebo treatment in rats. Thirty eight female Sprague-Dawley rats underwent an L5 spinal nerve ligation (L5 SNL) to induce a chronic neuropathic pain condition. Animals were conditioned …

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Creating And Studying "Instant Enemies" And Instant Allies" In Same-Sex Dyadic Interactions, Anna E. Park Jan 2011

Creating And Studying "Instant Enemies" And Instant Allies" In Same-Sex Dyadic Interactions, Anna E. Park

Psychology Theses - Archive

The present study was designed to investigate the “instant enemy” and “instant ally” phenomena. Forty-three pairs of unacquainted college students interacted in same-sex and same-race pairs for 10 minutes. In the enemy condition, the dyads consisted of one participant who was liberal and one participant who was conservative. In the ally condition, both participants were either liberal or both participants were conservative. It was expected that dyads consisting of political opposites would behave like “instant enemies,” whereas dyads consisting of participants with similar political attitudes would behave more like “instant allies.” This general prediction was expected to be reflected in …

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Evaluation Of A Randomized Clinical Trial Of A Psychoeducational Intervention On Long-Term Quality Of Life, Negative Affect, Progression And Survival In Head And Neck Cancer Patients, Lara Anne Trevino Jan 2011

Evaluation Of A Randomized Clinical Trial Of A Psychoeducational Intervention On Long-Term Quality Of Life, Negative Affect, Progression And Survival In Head And Neck Cancer Patients, Lara Anne Trevino

Psychology Dissertations - Archive

The relationship between psychological and physiological factors that impact health is an important consideration for daily life, illness prevention, treatment, and recovery in cancer patients. Psychological functioning may impact overall immune functioning, which may affect efficacy of cancer treatment and disease outcomes. Unfortunately, how psychological variables and quality of life during treatment may impact progression or survival has not been systematically studied. There is a growing body of research suggesting that psychological factors are important predictors of quality of life among cancer survivors. The purpose of the present study was to evaluate the effects of a randomized clinical trial of …

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Sex, Drugs, And Work: The Associations Of Personality Characteristics, Risky Sex, Substance Use, And Work Behavior In Young Adult Restaurant Workers, Robyn D. Petree Jan 2011

Sex, Drugs, And Work: The Associations Of Personality Characteristics, Risky Sex, Substance Use, And Work Behavior In Young Adult Restaurant Workers, Robyn D. Petree

Psychology Dissertations - Archive

Personality characteristics among young adult (18 - 29 years old) restaurant workers were examined in relation to substance use, risky sexual behavior, and several work outcomes. High sensation seekers and emerging adults were associated with more alcohol and drug use, lower levels of work engagement, and higher levels of intent to quit. Sensation seeking was also related to shorter job tenure. Emerging adulthood was also related to more days absent from work, more sexual partners, and having more unprotected sex. These findings are particularly important for the restaurant industry, one of the largest employers of young adults who are often …

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Measurement Invariance Of The Sf-12 Across Ethnic Groups Among Women In Postpartum, Tamer Farouk Desouky Jan 2011

Measurement Invariance Of The Sf-12 Across Ethnic Groups Among Women In Postpartum, Tamer Farouk Desouky

Psychology Theses - Archive

Purpose: The purpose of this study was to examine differential item functioning (DIF) as a plausible cause of subgroup variation in the short-form health survey (SF-12). Methods: Cross sectional secondary data analysis of postpartum women (n = 655) who participated in a prospective cohort longitudinal design was conducted. Hypotheses predicted that subgroups would exhibit DIF among items measuring physical health as assessed by the SF-12. If DIF is found then other postpartum related variables, such as social support and parity, will explain DIF through mediation analysis. A Multiple Indicator Multiple Cause (MIMIC) model was used to examine DIF among these …

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Implementation Of Complexity Reduction Algorithm For Intra Mode Selection In H.264/Avc, Santosh Kumar Muniyappa Jan 2011

Implementation Of Complexity Reduction Algorithm For Intra Mode Selection In H.264/Avc, Santosh Kumar Muniyappa

Electrical Engineering Theses - Archive

For applications with low computational capabilities like handheld devices, it is necessary that the encoding complexity is minimal. But H.264, which is the most widely accepted video platform employs several powerful coding techniques that increase encoding complexity. Hence, the objective of this thesis is to implement an algorithm which reduces the encoding complexity by about 25%, but retains the quality of the existing intra prediction algorithm. H.264 offers nine modes for intra prediction of 4x4 luminance blocks, which includes DC prediction and eight directional modes (N4). For regions with less spatial detail, H.264 supports 16x16 intra coding, where in one …

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Low Complexity Avs-M Using Machine Learning Algorithm C4.5, Pragnesh Ramolia Jan 2011

Low Complexity Avs-M Using Machine Learning Algorithm C4.5, Pragnesh Ramolia

Electrical Engineering Theses - Archive

AVS China is the latest video coding standard developed by the AVS work group of China employing the latest video coding tools for achieving high compression while preserving the quality of the video [15]. AVS China video standard has been proven superior to the existing video standards such as MPEG-2 and MPEG-4 part 2, in terms of reduced complexity and coding efficiency. AVS is a set of integrated standard system which contains systems, video, audio and media copyright management. AVS-M, the 7th part of the system is video codec targeting mobile devices. AVS-M uses high efficiency tools like macroblock portioning, …

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