Digital Commons Network^™

Improving Sample Collection Of Trace Particles Of Mock Explosive On Nano Coated Sensor, Daniel Woldemichael Yebo

Electronic Theses and Dissertations

In protection against explosive-based terrorism, development and mass deployment of miniature sensors can play a tremendous role. In trace explosive detection, one of the challenges is bringing explosive vapor samples from the environment to the sensor element. Such collection of a selective and sufficient amount of air sample will enable the device detect the explosive at lower concentration. This can be done by adsorption of the explosive vapor on a substrate. This research implements the idea by developing a nano coated sensor on a lead zirconate titanate (PZT) substrate. The effects of varying the amount of polyethyleneimine in the nano …

Differentiated Phonics Lessons Effect On Fluency And School Culture, Margaret Quinlan Boyd

Electronic Theses and Dissertations

This mixed-methods study investigates the effect of differentiated phonics lessons on reading fluency and examines the effect of these lessons on student and teacher perceptions of school culture. The study examines quantitative data on the effectiveness of the skill lessons. The qualitative findings examine the impact of the lessons on the dynamics of school culture as perceived by students and teachers given the opportunity to interact with wider and varying school groups. The understandings gained from the combination of the quantitative and qualitative data interpret the effect of the structure of differentiated across grade-level lessons on school culture.

Starved: Food Deserts In The Mississippi Delta, Novelette L. Brown

Electronic Theses and Dissertations

This thesis examines the impact of food deserts on obesity, and builds a case for additional research on rural food deserts independent from urban ones. The Mississippi Delta consistently presents the highest obesity rates within the state, yet both the third unhealthiest county (Quitman) and the healthiest (DeSoto) are located in that region. One of the reasons there is such a large discrepancy between the health rankings of DeSoto and Quitman counties is that DeSoto is contained within the Greater Memphis Metropolitan Area, but Quitman is entirely rural. Previous research has focused on the prevalence of urban food deserts and …

Fit Of The Tripartite Model With Residential Youth Referred For Externalizing Problems, Eu Gene Chin

Electronic Theses and Dissertations

The tripartite model of anxiety and depression (Clark & Watson, 1991) has received strong support among adult, adolescent, and child populations. Clinical samples of children and adolescents in these studies, however, have usually been referred for treatment of anxiety and depression. This study investigated the fit of the tripartite model for children and adolescents in a large, inpatient facility who were referred primarily for externalizing problems. Structural Equation Modeling was used to test the tripartite model relationship between negative affect, positive affect, and mood symptoms. Multiple fit indices were used to provide a reliable and conservative evaluation of the model. …

The Influences Of Gender And Race On The Attachment Styles Within A Criminal Population, Morgan Litchfield Bryant

Electronic Theses and Dissertations

This study utilizes tenets of attachment theory to examine how patterns of relating to parental figures vary according to the race and gender of subjects residing in a correctional facility. The study can perhaps influence rehabilitation services within the prison system and modify anti-recidivism programs attended by individuals released from a correctional facility. Second year doctoral students originally collected the data. The participants in the study were given the Adult Scale of Parental Attachment (ASPA) and a general questionnaire in an effort to gather information regarding race, gender, and patterns of relating. The participants were above the age of 18, …

Good Neighbors: Agents Of Change In The New Rural South, 1900 To 1940, Thomas Wayne Copeland

Electronic Theses and Dissertations

This work paints an intimate portrait of rural people who lived in the hill counties of northeast Mississippi and southwest Arkansas between 1900 and 1940. Howard County, Arkansas and Union County, Mississippi serve as the representative counties for each hill-country region. Howard County is located in the foothills of the Ouachita Mountains, and Union County is located in the foothills of the Appalachian Mountains. This study identifies who in the rural communities was most responsible for bringing positive changes to their communities, questions what motivated their efforts, and evaluates their successes and failures. To this end, the work first examines …

Storm Spotting And Amateur Radio: A Field Guide For Volunteer Storm Spotters, Michael Patrick Corey

Electronic Theses and Dissertations

Volunteers have played a critical part in relaying weather information since the middle 19th century. The effort of these volunteers has helped safeguard life and property when severe weather threatens. For almost 100 years Amateur Radio operators have played a critical part in severe weather preparedness and response. Amateur Radio operators not only bring a willingness to serve, but communications skills that provide an added benefit to any storm spotter program. The National Weather Service recognized this when developing the SKYWARN program during the 1960’s. Amateur Radio and the National Weather Service have developed over the last 40 years a …

The French Chef And The Cold War: Julia Child And The Mask Of Contained Domesticity, Hillary Ann Hamblen

Electronic Theses and Dissertations

Most scholarly studies and even general personal reflections about Julia Child portray her as a figure that changed the face of cooking, cookbooks, and cooking television for audiences of the late twentieth and twenty first centuries. While this is true, many of these studies and reflections do not acknowledge Child's ability to change mainstream ideas by conforming to some of them. While Child radicalized perceptions toward food and those who cook, she also represented a domestic woman and a wife. While Child's politics were indeed liberal, for the most part, her lifestyle was actually quite moderate. This project is an …

The Heavy Hand Of Government: An Economic Study Of Obesity, Kanybek Imanakovich Sagynbekov

Electronic Theses and Dissertations

Although there is extensive theoretical and empirical coverage of the incentive effect of an income tax on labor supply in the economics literature, there is no study of the secondary behavioral effects of an income tax. In this thesis, I explore the relationship among income, marginal income tax, and body weight. Namely, I show that under general conditions the Engel curve for the optimal weight is an inverted U-shaped function and the effect of the marginal income tax upon weight is non-linear. The empirical investigation uses two datasets: a panel dataset with 459 state-level observations for US states from 1992 …

Pharmacy-Level Quality Measures And The Consumer: Preferences And Attitudes, Zainab S. Shahpurwala

Electronic Theses and Dissertations

Objectives. To determine the perceptions of consumers toward community pharmacy quality measures and compare their perceptions regarding their pharmacy's overall quality before and after exposure to these measures. To explore the use of evaluative criteria applied by consumers to determine their preference for information related to these measures. Methods. Focus groups were used to refine attributes and levels used in the quantitative phase of the study. An Internet-based survey was administered to a national, online, consumer panel of community pharmacy patrons using maintenance medications. Descriptive statistics, MANOVA and t-tests were used to determine and compare perceptions related to the community …

Best Practices For Disaster Coverage: An Analysis Of How The Herald Newspaper And Wlox-Tv Covered Hurricane Katrina, Nicole R. Sheriff

Electronic Theses and Dissertations

A substantial amount of research has been done on Hurricane Katrina and its effects on New Orleans, Louisiana. However, few studies have focused on how the Mississippi Gulf Coast was affected by the hurricane. The purpose of this study is to bring attention to the reporting efforts of WLOX-TV and The Herald newspaper to cover Hurricane Katrina. This case study analyzes the practices WLOX and The Herald used to cover the hurricane and to explore which practices could be implemented in other newsrooms in the future. A total of four interviews were conducted with members from the newsrooms who had …

The Impact Of Pre-K Programs On Student Achievement And Instructional Leadership In Rural Mississippi School Districts, Jeremy Eugene Stinson

Electronic Theses and Dissertations

In 2011, Mississippi continues to be the only state in the southern region without a single state-funded pre-k program (NIEER, 2007), and all preschool funds in the state are currently allotted to Head Start. Witte and Trowbridge (2004) warned that the combination of pre-k programs could be the reason for highly fragmented systems of state funding, policies, and regulations. The purpose of this mixed methods study was to investigate whether differences exist between preschool groups in three North Mississippi school districts and to determine the degree to which stakeholders in the programs practice instructional leadership. From a quantitative perspective, the …

Pharmacokinetic Evaluation Of A Novel Compound, Sn79, A Putative Sigma-2 Receptor Antagonist, By Intravenous And Oral Administration In Rats, Harsha Vinnakota

Electronic Theses and Dissertations

Considering the alarming rates at which substance drug abuse, especially cocaine, is increasing in today's society, there is a lot of impetus on the development of medications that can effectively help alleviate its toxicity and addiction. The affinity of cocaine to sigma receptors (sigma-1 and sigma-2) rendered the hypothesis that blocking sigma receptors could be a possible mechanism to attenuate cocaine-induced toxicity and addiction. In this view, SN79, a synthetic compound with selectivity to both sigma-1 and sigma-2 receptors garnered our attraction for its use as an antagonist. This dissertation encompasses detailed investigation of SN79 from drug discovery and development …

The Strategic Value Driver Model: A Methodology For Examining Value Drivers For A New Pharmaceutical Product In Diabetes, Sumit Verma

Electronic Theses and Dissertations

Objective. Objective The primary objective of this study was to explore a new methodological framework—Strategic Value Driver Model (SVDM), for examining value drivers for new pharmaceutical inhaled insulin in diabetes. Methods. A cross-sectional, internet-based survey was used to collect a sample of 483 Type 2 diabetic patients via national panel of diabetic patients. The sample had two subgroups—insulin-naïve (52.9%, n=255) and insulin-user (47.1%, n=227) patients. The comparative performance of insulin syringes/vials, insulin pen and inhaled insulin was captured on four product attributes (i.e., safety, convenience, clinical efficacy and cost) after asking the patients to report the importance of these attributes. …

Reforming Tastes: Taste As A Print Aesthetic In American Cookery Writing, Sarah Wurgler Walden

Electronic Theses and Dissertations

Many eighteenth-century philosophers such as Kant and Hume worked to develop discourses of taste as a means of standardizing cultural behaviors. Using physical taste as a metaphor for aesthetic perception and judgment, these writers could both define and abstract group boundaries. As American writers worked to distinguish their nation from their British forebears, many recognized the utility of taste-based discourse and worked to develop cultural tastes around shared principles of egalitarianism and democracy. Cookbooks and domestic writing soon engaged these discourses, as it was the task of women to cultivate a virtuous citizenry, and—through domestic print culture—to demonstrate the deleterious …

Crashsmith Dope: The Role Of Media In The Development Of Professional Baseball In New York From 1919-1929, Ryan Mcgregor Whittington

Electronic Theses and Dissertations

John McGraw's New York Giants were the premier team of the Deadball Era, which stretched from 1900–1919. Led by McGraw and his ace pitcher, Christy Mathewson, the Giants epitomized the Deadball Era with their strong pitching and hard-nosed style of play. In 1919 however, The New York Times and The Sporting News chronicled a surge in the number of home runs that would continue through the 1920s until the entire sport embraced a new era of baseball. This thesis details the role played by these two newspapers in the rise of the Live Ball Era, the New York Yankees, and …

The Relationship Between Patterns Of Relating And Academic Self-Concept, Ji Woong Yang

Electronic Theses and Dissertations

The purpose of this study was to explore the relationship between patterns of relating to both parents and academic self-concept. Also, this study examined the differences between academically high-achieving college students and academically at-risk college students in patterns of relating and academic self-concept. One hundred sixty one college students participated in this study. Of the 161 participants, 90 were recruited from an academic support program and 71 were recruited from an honors college. Participants completed a research packet including the Adult Scale of Parental Aattachment (Snow et al., 2007), Self Description Questionnaire III (Marsh, 1992), and the Demographic Questionnaire. Results …

Natural Products Chemistry Of Leads Acting On Mrsa, Hcv, Malaria, And Depression Disorders, Mohamed Ali Mohamed Ali Ibrahim

Electronic Theses and Dissertations

Nature has proven to be an endless source of abundant diversity of chemical entities with varying biological activities. The World Health Organization (WHO) estimates that 80% of the world's population depends on traditional medicine for treating their everyday health problems. According to Gordon Cragg, former director of the natural products branch of the NCI, ″Nature has produced wonderfully complex molecules that no synthetic chemist could ever dream up.″ Moreover, he emphasized that over 60% of cancer therapeutics have been derived from nature whether directly through isolation or indirectly through semi-synthesis. Various examples have been reported such as extracts from Catharanthus …

Quantification Of An Ultrasound Test Apparatus And Its Potential Use To Control Nuisance Species In Commercial Aquaculture Settings, Bradley T. Goodwiller

Electronic Theses and Dissertations

As one step in the investigation of using acoustics to improve aquaculture production, work was pursued on the possible use of ultrasound to control the Bolbophorus trematode in commercial catfish ponds. The trematode population can be controlled by eliminating the host ram's horn snail via exposure to high amplitude ultrasound. Initial laboratory tests indicated that a commercially available sonicator (operating at 20 kHz) is capable of killing individual snails in fish tanks. More thorough testing indicated efficiency rates of approximately 35% on batches of 10 snails. In addition to the snails killed immediately, there was evidence that the sonication technique …

Comorbid Depression And Anxiety As Predictors Of Adolescent Substance Use In A Rural And Ethnically Diverse Community Sample, Michael James Mcdermott

Electronic Theses and Dissertations

Drug use among adolescents is one of the nation's most significant public health concerns, with an estimated 47% to 56% of adolescents engaging in illicit substance use before completing high school. Negative consequences often associated with adolescent substance use frequently result in severe emotional and physical problems and serve to illustrate the growing importance of identifying associated risk factors. It is likely that psychological risk factors play an important role in the initiation and continued use of drugs among adolescents. In particular, mood and anxiety disorders have emerged as two such psychological risk factors. Unfortunately, studies examining this relationship have …

Market Response To Food And Drug Administration's Safety Warnings: A Case Study Using An Interrupted Time Series Analysis Of The Medicare Database For 2006-2008, Hafiz Oko-Osi

Electronic Theses and Dissertations

Objectives: To evaluate the impact of a safety warning on the utilization rates of thiazolidinedione oral anti-diabetes medication using an interrupted time series analysis. Methods: We extracted data from a five percent national sample of Medicare Part D beneficiaries for the periods between January 2006 and December 2008. Beneficiaries with Part D claims for thiazolidinediones were classified into appropriate-use, at risk, and contraindicated groups based on certain comorbid conditions. We assessed the effects of the May 2007 FDA safety warning about an ongoing safety review of rosiglitazone's potential to increase cardiovascular risks on thiazolidinedione utilization rates using an interrupted time …

Factors That Physicians Find Encouraging And Discouraging About Electronic Prescribing: A Quantitative Study, Krutika Satish Jariwala

Electronic Theses and Dissertations

Research objective. While the adoption of e-prescribing is growing, the Institute of Medicine's recommendations that all prescriptions be routed electronically by 2010 certainly has not been met. Therefore, the objective of this study is to compare the factors that physicians find encouraging and discouraging about e-prescribing based on their e-prescribing adoption status. Study design. Cross-sectional, descriptive design. An Internet-based survey was sent to national convenience sample of physicians. Using e-prescribing literature, 44 items were developed concerning various factors related to the adoption of e-prescribing. Physicians rated how much the factors encouraged them or discouraged them about e-prescribing. Analysis procedures included …

Factors Affecting Community Pharmacy Owners' Attitudes Toward And Likelihood To Adopt Rxsync Service(Sm), Namita Joshi

Electronic Theses and Dissertations

Factors affecting community pharmacy owners' attitudes toward and likelihood to adopt RxSync ServiceSM. Objective. There is an increased recognition of the role of pharmacists in the provision of patient care services. Therefore, understanding factors that affect pharmacists' attitudes and likelihood to implement pharmacy services is warranted. The objective of this study is to examine how community pharmacy owners' entrepreneurial and demographic characteristics, perceptions of pharmacy service characteristics (perceived benefit, perceived compatibility, and perceived complexity), workload perceptions, and the number of pharmacy services they already offer, affect their attitude toward and likelihood to adopt RxSync ServiceSM, a newly developed prescription management …

Design And Synthesis Of Novel Benzimidazoles And Aminothiazoles As Small Molecule Inhibitors Of Cdk5/P25, Prashi Jain

Electronic Theses and Dissertations

This dissertation describes the design, synthesis and biological evaluation of novel CDK5/p25 small molecule inhibitors. Cyclin dependent kinase 5 (CDK5) is a proline directed serine/threonine kinase which plays an important role in the pathology of Alzheimer's disease (AD). CDK5/p25 has been implicated in hyperphosphorylation of tau protein which forms neurofibrillary tangles (NFTs), a contributing factor to the pathology of Alzheimer's disease (AD). Based on the deposited X-ray crystal structure of CDK5/p25 with a non-selective CDK inhibitor R-Roscovitine (PDB ID: 1UNL), eight series of novel compounds with a benzimidazole core were designed, synthesized and tested as inhibitors of CDK5/p25. An efficient …

Daily Nocturnal Melatonin Supplementation In Perimenopausal Women: A Randomized, Double-Blind, Placebo-Controlled Pilot Study Examining The Effects Of Melatonin On Bone Health And Quality Of Life, Mary Kotlarczyk

Electronic Theses and Dissertations

Objective: The purpose of this pilot study was to assess the effects of nightly melatonin supplementation on primary endpoints of bone health and secondary endpoints of quality of life in perimenopausal women.

Methods: A total of 18 perimenopausal women were randomized to receive melatonin, 3 mg p.o., (n=13) or placebo (n=5) nightly for six months. Bone density was measured by calcaneal ultrasound. Osteocalcin (OC), a bone formation marker, and amino-terminal cross-linking telopeptide of type I collagen (NTX), a bone resorption marker, were measured in serum samples taken bimonthly to assess changes in bone turnover. Participants completed the Menopause-Specific Quality of …

The Relationship Between Academic Achievement And Economic Level At Selected High Schools In Western Pennsylvania And Their Impact On The Degree And Success Of Parental Inovlvement Strategies, Harry Bauman

Electronic Theses and Dissertations

Education accountability has risen due to the requirements of the federal No Child Left Behind Act of 2001 (NCLB) legislation, and practitioners are working harder, and with more creativity, than at any other time in recent history to find ways to improve student achievement. If a school fails to meet what has been determined to be "adequate yearly progress" (AYP), a mandated set of prescriptive guidelines, requirements and sanctions, are imposed by the government. One of these requirements is that an improvement plan be developed and approved by the department of education. This plan must include a listing of policies …

Living With Schizophrenia: A Phenomenological Investigation, Andri Yennari

Electronic Theses and Dissertations

This study investigated the experience of living with schizophrenia through seven participants' accounts of the way they have been perceived and treated by others, as well as the way they viewed themselves after having been identified with the diagnosis of schizophrenia. Participants were recruited through psychologists at the mental health facility where they received treatment and were interviewed by the researcher in that facility.

To analyze the data of this study, an empirical phenomenological method was used to explicate the meaning of schizophrenia as it was experienced and lived by participants. A hermeneutic component was included to interpret the data …

Gay Identity Formation: An (Auto)Ethnographic Look At Gay Volleyball, G. Keilan Rickard

Electronic Theses and Dissertations

From September of 2004 until May of 2010, I was part of the SCVL, a gay volleyball league in Pittsburgh, PA. At the same time, I was a graduate student, working to advance my status within the Academy. In this study, I use autoethnography to talk about my experiences at the nexus of these two institutions: the SCVL and the Academy. I take the reader through a year in the life of the SCVL (2008-2009) and discuss ways in which its perennial practices contributed to my gay identity development. Well, sort of. It hasn't always been clear to me the …

Conversational Circles Influencing Athletic Policymaking During Development, Implementation, Litigation, And Enforcement Of Title Ix Of The Education Amendments Of 1972 Of The Civil Rights Act Of 1965, Jeannie Mae Lane

Electronic Theses and Dissertations

The purpose of this historical research was to identify and describe distinct conversational circles developing in separate and overlapping decision-making communities during the implementation and enforcement of Title IX of the Education Amendments of 1972 to the Civil Rights Act of 1964. Specifically, the study focused on identifying conversational circles that emerged in legislative, judicial, print media, and educational spheres. These Conversational Circles appeared to influence gender equity policy making in college and university athletics throughout the United States. Specific attention in this dissertation was turned to legislative, judicial development and media coverage in The New York Times, The Chronicle …

Influence Of Vegetation On Sediment Bacterial Community Structure, Microbial Enzyme Activities And Phosphorus Retention In Constructed Freshwater Wetlands, Rani Menon

Electronic Theses and Dissertations

Agricultural activities are major sources of non-point pollutants causing eutrophication. Constructed wetlands are used as a best management practice for sequestration of nutrients from agricultural runoff. This dissertation focuses on the influence of vegetation on bacterial community structure, microbial enzyme activities, and phosphorus retention capacity of constructed wetland systems. A greenhouse experiment was conducted using unvegetated or vegetated mesocosms with Juncus effusus, Carex lurida or Dichanthelium acuminatum var. acuminatum in monoculture or mixed culture.

To study the influence of vegetation on the bacterial community structure and microbial enzyme activities, sediment samples were taken from monoculture mesocosms in the greenhouse. β-1,4-glucosidase, …