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Articles 3181 - 3210 of 5148
Full-Text Articles in Entire DC Network
The Effects Of Resveratrol On Oxidative Stress And Muscle Atrophy, Janna Renee Jackson
The Effects Of Resveratrol On Oxidative Stress And Muscle Atrophy, Janna Renee Jackson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Resveratrol (3,5,4,trihydroxystilbene) is a naturally occurring polyphenol found in over seventy plant species that has been shown to have anti-oxidant, anti-apoptotic and anti-aging properties. Resveratrols' capacity to enhance the endogenous anti-oxidant system, upregulate anti-apoptotic proteins and improve mitochondrial function, presumably through the activation of the N AD+ dependent deacetylase Sirtuin1, suggests that supplementation with resveratrol may potentially protect skeletal muscle from the detrimental effects of increases in oxidative stress and the subsequent increase in apoptotic signaling that are present in many atrophic conditions. Therefore, the major goals of this dissertation are to further understand the interplay between oxidative stress and …
Sense Of Community, Collective Efficacy, And Perceived Police Efficacy: Research From A Social Cognitive Perspective, Ellen Belchior Rodrigues
Sense Of Community, Collective Efficacy, And Perceived Police Efficacy: Research From A Social Cognitive Perspective, Ellen Belchior Rodrigues
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research investigates the relationship between two aspects of social cohesion on perceived police efficacy: (1) Sense of community, which is related to individual belonging and attachment to a place, as well as and trust and influence among residents; and (2) Collective efficacy, which is defined as cohesion among residents, combined with shared expectations for the social control of public spaces. Based in social disorganization theory and social cognitive theory, this study analyzes to what extent sense of community and collective efficacy affect perceptions of police work. This study was conducted in with residents from four neighborhoods from Wilmington, DE. …
The Influence Of Nursing Curriculum In Associate Degree Nursing Programs On The Development Of Nursing Professionalism In Graduating Nursing Students, Cristina M. Riter
The Influence Of Nursing Curriculum In Associate Degree Nursing Programs On The Development Of Nursing Professionalism In Graduating Nursing Students, Cristina M. Riter
Graduate Theses, Dissertations, and Problem Reports (ETD)
Nursing professionalism is assumed to develop during the educational process, with the model of the baccalaureate degree program. There have been few studies on the development of professionalism in beginning nursing students, especially those in a two-year associate degree nursing program. This research study explored the concept of professional development in reaction to the increased number of associate degree registered nurses in this country since the inception of the associate degree nursing programs in the 1950s. The impact of the registered nursing shortage on the nursing profession and the educational preparedness of future registered nurses was also explored. The research …
Resurgence Of Temporal Patterns Of Responding, Carlos Renato Xavier Cancado
Resurgence Of Temporal Patterns Of Responding, Carlos Renato Xavier Cancado
Graduate Theses, Dissertations, and Problem Reports (ETD)
The resurgence of temporal patterns of key pecking by pigeons was studied in two experiments. In Experiment 1, positively accelerated and linear patterns of responding were established under a discrete-trial multiple fixed-interval (FI) variable-interval (VI) schedule. Subsequently, responding on a different key produced reinforcers according to a VI schedule. When extinction was in effect, resurgence of previously established temporal patterns was observed for each pigeon. That is, positively accelerated and linear patterns recurred in the presence of the stimuli previously correlated with the FI and VI components of the multiple schedule, respectively---suggesting that these temporal patterns, although not directly reinforced, …
Changes In Body Mass Index And Short-Term Healthcare Expenditures In A Medicare Population, Tricia Lee Wilkins
Changes In Body Mass Index And Short-Term Healthcare Expenditures In A Medicare Population, Tricia Lee Wilkins
Graduate Theses, Dissertations, and Problem Reports (ETD)
Purpose. The main objective of the study was to estimate the short-term changes in healthcare expenditures that result from weight gain or loss in a population of Medicare patients using longitudinal data. Changes in total healthcare expenditures and its components (inpatient, outpatient, prescription, dental and other) by changes in body mass index (BMI) categories were analyzed.;To examine the relationship between BMI changes and expenditures, three specifications of expenditures were used. The primary measure of expenditures was relative changes in expenditures transformed into log-ratio. Under the log-ratio approach positive values indicate increased expenditures, and negative values indicate decreased expenditures. Other measures …
Optimized Trusted Information Sharing, Joseph M. D'Alessandro
Optimized Trusted Information Sharing, Joseph M. D'Alessandro
Graduate Theses, Dissertations, and Problem Reports (ETD)
As the digital world expands the building of trust and the retention of privacy in information sharing becomes paramount. A major impediment to information sharing is a lack of trust between the parties, based on security and privacy concerns, as well as information asymmetry. Several technological solutions have been proposed to solve this problem, including our's: a trusted enclave with a Continuous Compliance Assurance (CCA) mechanism. Of the work surrounding these proposed solutions, no attention has been directed toward studying the issues of performance surrounding processing of this nature. Studies have shown that ignoring the performance of a system can …
Correlation Between Flexural Strength And Denture Base Acrylic Thickness Overlaying Implant Stud Attachments, Khaled N. Alawadhi
Correlation Between Flexural Strength And Denture Base Acrylic Thickness Overlaying Implant Stud Attachments, Khaled N. Alawadhi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives. To investigate the effect of acrylic resin thickness and the stud attachment housings on the maximum breaking load, flexural strength and flexural modulus of denture base acrylic resins overlying implant overdenture attachments.;Methods. Fifty-two rectangular specimens were fabricated from high impact denture acrylic resin (Lucitone 199). Forty specimens contain 2.00 mm height Locator attachment titanium denture caps with black processing males, 12 specimens did not include the denture cap. All specimens were fabricated according to ANSI/ADA SPECIFICATION NO. 12-2002 for testing denture base resin with constant measurements of 64 mm in length, 10 mm in width, and variable testing thickness. …
Passive Thermal Management Of Solar Heat Flux Through Building Roof Structures, Emily Deanna Pertl
Passive Thermal Management Of Solar Heat Flux Through Building Roof Structures, Emily Deanna Pertl
Graduate Theses, Dissertations, and Problem Reports (ETD)
The impact of rising energy prices on household costs and the overall economy has increasingly become a focal point of public concern. During a typical summer day, solar radiation heats up a building for the majority of the day through the windows, walls, doors, and especially the roof. To maintain comfort in summer, the heat gained must be removed by a cooling system and similarly in winter, the heat lost must be replaced by a heating system. Heating and cooling are both major contributors to energy expenditures in most building structures, and as a result, energy savings focused on these …
Reovirus As A Probe To Study Induction Of Anti-Viral Immunity And Modulation Of Peanut Allergy, Ronald J. Fecek Jr.
Reovirus As A Probe To Study Induction Of Anti-Viral Immunity And Modulation Of Peanut Allergy, Ronald J. Fecek Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
Infectious diarrheal diseases are a major burden to human health worldwide. A proportion of those diarrheal diseases are caused by enteric viruses that gain access through the gastrointestinal tract. Consequently, the human gastrointestinal mucosa represents an important route of entry for enteric viruses. Enteric viruses are taken up by gastrointestinal mucosal dendritic cells (DCs) that induce and shape adaptive immunity, however, activation of mucosal DCs by enteric viruses is poorly understood. The research presented in this dissertation is focused on deciphering the requirements for activation of murine DCs in response to an enteric virus as well as the subsequent generation …
The Role Of Autonomy In Suicidal Ideation Among Older Adults, Alisa A. O'Riley
The Role Of Autonomy In Suicidal Ideation Among Older Adults, Alisa A. O'Riley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Although rates of death by suicide in older adults in the United States appear to be decreasing, older adults remain at higher risk for completed suicide than any other age group (Center for Disease Control, 2005). In looking at suicidal behavior in particular, several researchers (e.g. Caine & Conwell, 2001) have suggested that one important way one might begin to understand risk factors for suicide in late life is to identify distal factors that put older adults at risk for suicidal behavior. This study explicitly set out to examine one possible distal risk factor. That is, a strong emphasis on …
Escape From Stimuli Correlated With Transitions Across Lean And Rich Schedules Of Reinforcement, August F. Holtyn
Escape From Stimuli Correlated With Transitions Across Lean And Rich Schedules Of Reinforcement, August F. Holtyn
Graduate Theses, Dissertations, and Problem Reports (ETD)
On a multiple-schedule of reinforcement, when a rich component is followed by a relatively lean component, responding is interrupted by extended pausing. The present experiment examined whether the discriminative stimulus correlated with this rich to lean transition acquired aversive properties. Four pigeons were exposed to a compound schedule with two fixed-ratio components programmed on the center key. One component ended with the delivery of a rich reinforcer (7-s access to grain) and the second with a lean reinforcer (1-s access). Each component was correlated with a distinctive key color. At the beginning of some components, a side key was activated. …
Jimmy Choos Vs. Ariats: The Presentation Of Masculinity In The Online Sex Ads Of Men Who Have Sex With Men, Adam Thomas Babich
Jimmy Choos Vs. Ariats: The Presentation Of Masculinity In The Online Sex Ads Of Men Who Have Sex With Men, Adam Thomas Babich
Graduate Theses, Dissertations, and Problem Reports (ETD)
The concept of masculinity should be understood in terms of its fluidity. One cannot say that there is a specific "white" masculinity or a specific "straight" masculinity; rather, masculinity is constantly changing. The inherent problem of defining masculinity has not deterred researches but has fueled a large and growing body of literature dedicated to studying masculinity's dynamic process of change. For a long time, gay men have been regarded as a group who is incapable of possessing masculinity; indeed according to hegemonic masculinity, gay men must be excluded. However, research has shown that gay men are rejecting this notion and …
Improving The Academic Self-Efficacy Of Middle School Girls Toward The Study Of Mathematics Through The Use Of Theatrical Infusion, Aimee L. Richards
Improving The Academic Self-Efficacy Of Middle School Girls Toward The Study Of Mathematics Through The Use Of Theatrical Infusion, Aimee L. Richards
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine the impact of theatrical infusion on the academic self-efficacy toward the study of mathematics in middle school girls. A group of middle school girls participated in a program entitled Starring...Math. This five session program presented mathematical concepts through the use of theatrical infusion. The group of participants was composed of twenty-one girls in sixth, seventh and eighth grades.;Part I: Everyday Math Tasks of the Mathematics Self-Efficacy Scale (Betz & Hackett, 1989) was administered at three occasions: (1) prior to the start of the program, (2) at the end of the program and, …
The Cold War And Decolonization In British Guiana: The Anglo-American Intervention And Guianese Nationalist Politics, Joshua David Esposito
The Cold War And Decolonization In British Guiana: The Anglo-American Intervention And Guianese Nationalist Politics, Joshua David Esposito
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis examines the end of colonial rule in British Guiana and what it tells us about the relationship between decolonization and the Cold War. It explores how the end of a four hundred year period of European nation-state domination of the world led to a complex shift in global power structures and considerable conflict. From 1953 to 1966 nationalist leaders in British Guiana struggled to achieve independence from Great Britain and fought to establish their position in the future government of Guyana. Colonialism, however, left a unique imprint on British Guiana's cultural development, and created a volatile society that …
Assessing The Cumulative Impact Of Disturbance On Canopy Structure And Chemistry In Appalachian Forests, Lindsay N. Deel
Assessing The Cumulative Impact Of Disturbance On Canopy Structure And Chemistry In Appalachian Forests, Lindsay N. Deel
Graduate Theses, Dissertations, and Problem Reports (ETD)
Eastern forests experience a range of disturbance events over time, from stand-replacing disturbances, such as clear cuts, to ephemeral disturbances, such as insect outbreaks. By understanding the cumulative impact of disturbances on canopy structure and chemistry, we can gain insight into management strategies, assess a variety of ecosystem services, and even contribute to a larger body of knowledge on global climate change. I transformed a series of Landsat images spanning approximately 25 years into cumulative disturbance maps covering Green Ridge State Forest and Savage River State Forest in western Maryland. Intensive field surveys collected during the summer of 2009 provided …
Literacy Knowledge Among Teachers: Considerations For Implementation Of The Rti Initiative, Amy F. Conner Love
Literacy Knowledge Among Teachers: Considerations For Implementation Of The Rti Initiative, Amy F. Conner Love
Graduate Theses, Dissertations, and Problem Reports (ETD)
A literacy knowledge assessment survey was designed to assess in-service teachers' literacy knowledge and determine the effect of professional training in reading instruction, teaching credentials, and years of experience on their literacy knowledge. This quantitative study used descriptive statistics to examine the relationship between variables of teacher demographics (professional development participation, professional development content, courses taken at a college or university, teaching credentials, and years of experience), comparisons between teachers who teach elementary general education, secondary general education (English/language arts), special education, and those who are reading teachers/reading specialists/literacy coaches, and comparisons between novice and veteran teachers. This study was …
Colonial Sugar Production In Nyanza: (Kibos-Muhoroni) The Asian Initiative, The Genesis, And Development Of Kenya's Sugar Industry, 1903--1963, Godriver A. N. Wanga Odhiambo
Colonial Sugar Production In Nyanza: (Kibos-Muhoroni) The Asian Initiative, The Genesis, And Development Of Kenya's Sugar Industry, 1903--1963, Godriver A. N. Wanga Odhiambo
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study analyses Asian sugar production in colonial Nyanza examines the Asian initiative and the development of commercial cane farming in Central Nyanza. Therefore, the work provides a different perspective on Asian initiative in agriculture and provides a framework on which to understand the persistent state of insufficiency in Kenya's sugar industry.;The study mainly relied on primary sources, secondary sources and oral interviews. These sources were derived from the Kenya National Archives, Nairobi, Syracuse University's Bird Library, Ohio University Library, Moi University Library Eldoret and West Virginia University Library. The primary materials included annual reports of the Department of Agriculture, …
The Impacts Of Longwall Mining On Groundwater Systems -- A Case Of Cumberland Mine Panels B5 And B6, Xinzhi Du
The Impacts Of Longwall Mining On Groundwater Systems -- A Case Of Cumberland Mine Panels B5 And B6, Xinzhi Du
Graduate Theses, Dissertations, and Problem Reports (ETD)
The longwall mining method is a commonly used method of coal extraction that involves the complete removal of large, rectangular panels of coal. Since it causes subsidence through the overlying strata to the ground surface, the surface-and ground-water above the longwall panels may be affected and drained into the lower levels. The purpose of this study is to determine the effects of longwall mining subsidence on surface- and ground-water systems by using a groundwater flow model: Ground Water Vista (GWV).;To setup the GWV model, the Globe Information System software (ArcMap) was used to determine the geometry and boundary conditions of …
One-Room Schools And Their Role In The Development Of The Appalachian Hills Of West Virginia: 1863--1940s, James Seth Caudill
One-Room Schools And Their Role In The Development Of The Appalachian Hills Of West Virginia: 1863--1940s, James Seth Caudill
Graduate Theses, Dissertations, and Problem Reports (ETD)
One-room schools provided the educational settings for the majority of West Virginians until well into the twentieth century. The distribution of the population throughout the rural, rolling, and mountainous terrain resulted in the location of schools within walking distance for most students. The school population consisted of students of various ages and different grades contained in one room. Teachers required diverse skills, in order to perform as academic instructor, nurse, custodian, and entertainment leader at recess. The rural schools gave students in these communities an opportunity to achieve an education, offering both academics and life lessons. The thesis will examine …
Relationships Of Developmental Traits In Young Alpaca Crias And Lambs, Sara Elizabeth Lewis
Relationships Of Developmental Traits In Young Alpaca Crias And Lambs, Sara Elizabeth Lewis
Graduate Theses, Dissertations, and Problem Reports (ETD)
Successful reproduction in alpacas is highly dependent upon postnatal survival, which in turn is dependent upon a pattern of continuous gain in weight as an indicator of health. Weighing alpacas is the primary method used to assess their general health. Unfortunately, the measurement of cria weight is not always a simple, routine, or easy determination. The purpose of this study was to determine if, as in other species such as cattle and horses, morphometric body measurements can be used to estimate weight. In this study, continuous weight and girth measurements were taken on 34 alpaca cria. Age and girth were …
Phosphorus Nutrition In Broilers, Staci Ann Loop
Phosphorus Nutrition In Broilers, Staci Ann Loop
Graduate Theses, Dissertations, and Problem Reports (ETD)
Due to depleting resources, high feed ingredient costs, and eutrophication, phosphorus nutrition in broilers has been a topic of concern for many years. The amount of damage being done to the environment by phosphorus runoff in some states has led to regulations that require broiler litter to have decreased phosphorous with the use of a phytase enzyme. There are many phytase products on the market, however, these enzymes are not all equally effective. Companies may rely only on feed manufacture retention data instead of conducting live bird performance research to test the actual efficacy of the enzyme. The first study …
The Effect Of Cannula Design Upon Apically Extruded Sodium Hypochlorite During Endodontic Therapy, Gavin L. Criser
The Effect Of Cannula Design Upon Apically Extruded Sodium Hypochlorite During Endodontic Therapy, Gavin L. Criser
Graduate Theses, Dissertations, and Problem Reports (ETD)
This in vitro study investigates the effect of cannula design on the amount of apically extruded sodium hypochlorite during non surgical root canal therapy. Ten human, extracted, single canal teeth were decoronated and instrumented and randomly assigned to two different treatment groups BO (blown out apices) and NBO (non-blown out apices). Three different cannula designs (Max-i-Probe, Pro-Rinse, Monoject) were compared in respect to the amount of extruded root canal irrigant yielded beyond the root apex. The results of this study support the conclusion that safe ended, side vented cannula design reduces the possibility of extruding sodium hypochlorite beyond the root …
Determining Efficacy Of A Thermally Processed Exogenous Enzyme Cocktail For Broilers, Kala Renea Beaman
Determining Efficacy Of A Thermally Processed Exogenous Enzyme Cocktail For Broilers, Kala Renea Beaman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Feed ingredient price has influenced nutritionists to maximize diet nutrient availability through use of exogenous enzymes. Poultry are almost exclusively fed pelleted diets that entails feed being subjected to conditions of high moisture, temperature and pressure that could partially denature added enzymes. Exogenous enzyme efficacy may be decreased or completely lost if enzymes are not able to survive the pelleting process. The objective of the current studies was to properly assess the efficacy of a commercially available exogenous enzyme cocktail subjected to increasing steam conditioning temperatures during pelleting (82, 88, 93°C). Dietary treatments consisted of nutritionally adequate diets or Positive …
Communicative Facework In Marital Dissolution And Post-Dissolution Processes, Brandi N. Frisby
Communicative Facework In Marital Dissolution And Post-Dissolution Processes, Brandi N. Frisby
Graduate Theses, Dissertations, and Problem Reports (ETD)
Divorce affects nearly 24,000 adults (U.S. Bureau of the Census, 2008) and one million children yearly (Amato, 2000), often with negative consequences for those who are involved (Amato, 2000; Kiecolt-Glaser & Newton, 2001). Unlike previous research which focused on predictors of divorce, this dissertation (2 studies) focused on the communicative processes that occur when divorce is initiated and in turning points which comprise the interactions in post-divorce relationships. In study one, participants (N = 69) reported on the conversation where the decision to divorce was made, the face threats and facework which were communicated during that conversation, and the individual …
A Comparison Of Parent-Child Interaction Therapy And Treatment As Usual With Families With A History Of Child Abuse And Neglect And Intimate Partner Violence, Kimberly P. Foley
A Comparison Of Parent-Child Interaction Therapy And Treatment As Usual With Families With A History Of Child Abuse And Neglect And Intimate Partner Violence, Kimberly P. Foley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Child abuse and neglect (CAN) and intimate partner violence (IPV) are serious public health issues that need to be addressed. In 2005, a reported 899,000 children throughout the United States, the District of Columbia, and Puerto Rico were the victims of either abuse or neglect resulting in the death of 1,460 children under 18-years-of-age (US Department of Health and Human Services, 2005). In the United States each year, adult women are subjected to over 5 million IPV incidences and which result in the death of approximately 1,300 women (APA, 2005). A meta-analysis of 31 studies conducted by Appel and Holden …
Three Essays On Institutions And Economic Development, Sanjukta Roy
Three Essays On Institutions And Economic Development, Sanjukta Roy
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation consists of three essays that look into different types of institutions and their relation with various aspects of economic development. The essays explore the role of financial institutions, political institutions and the role of a free media in the context of economic development. Chapter 2 elaborates on how foreign direct investment (henceforth FDI) inflow into an economy can contribute towards the freedom of the institution of media. Chapter 3 analyzes how a free media can help mitigate terrorism incidents and strengthen a democracy for the same cause. Chapter 4 investigates how the development of financial institutions, namely financial …
Recommendations For Biomechanics In The Physical Education Teacher Education Curriculum, Susan M. Ross
Recommendations For Biomechanics In The Physical Education Teacher Education Curriculum, Susan M. Ross
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine the critical biomechanics competencies physical educators need to learn, and delineate learning environments and instructional methods for delivering core biomechanics competencies within the physical education teacher education curriculum. An initial list of theoretical and applied biomechanics competencies was constructed using the knowledge and skills recommended by the Guidelines and Standards for Undergraduate Biomechanics and three textbook sources. A two-round, modified Delphi procedure involved the repeated circulation of a survey to a small panel of content experts. The study sample included biomechanics specialists, physical education teacher educators, and K-12 physical education teachers. The …
Mountaineer Boys And Girls Club Public Relations Campaign Professional Project, Lisa K. Brown
Mountaineer Boys And Girls Club Public Relations Campaign Professional Project, Lisa K. Brown
Graduate Theses, Dissertations, and Problem Reports (ETD)
The task of sustaining a nonprofit organization in a small town can be challenging. These organizations rely on public relations to communicate with the public and maintain their funding. This professional project provides the Mountaineer Boys and Girls Club ("the Club") in Morgantown, West Virginia, with a public relations campaign. The campaign is designed to assist the Club with increasing donations, extending stewardship and increasing website visits from a relationship management perspective. The project also offers other nonprofit staff members with a guide to use when creating their own public relations plans.
Goal Framing Of Health Related Behaviors: What Factors Contribute To The Persuasiveness Of A Message?, Sarah A. Stoner
Goal Framing Of Health Related Behaviors: What Factors Contribute To The Persuasiveness Of A Message?, Sarah A. Stoner
Graduate Theses, Dissertations, and Problem Reports (ETD)
There is evidence that the manner in which relevant information is framed can influence decisions that are based on that information. That is, information may be presented in a positive frame (i.e., describing benefits gained from engaging in behaviors) or in a negative frame (i.e., describing losses from not engaging in behaviors). The effect of information frame on older adults' decision to comply or not comply with health behavior recommendations is unclear due to a paucity of research. In an attempt to understand factors that influence older adult healthy behavior decision making, the current study examined variables that might predict …
Dietary Cholesterol Effects On Learning, Memory And Amyloid Beta: Learning And Memory Effects On Brain Cholesterol And Sulfatide Levels, Deya S. Darwish
Dietary Cholesterol Effects On Learning, Memory And Amyloid Beta: Learning And Memory Effects On Brain Cholesterol And Sulfatide Levels, Deya S. Darwish
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recent studies have revealed ambiguous findings on the effects of dietary cholesterol on learning. In one study by Schreurs and coworkers it was reported that a 2% cholesterol diet had a positive effect on learning. However, it was realized that metals, specifically copper, could potentially exacerbate the aggregation of amyloid beta (Abeta), a protein associated with Alzheimer's disease (AD) leading to the formation of Abeta plaques. In a subsequent publication by Sparks and Schreurs it was reported that a 2% cholesterol diet with the addition of 0.12 ppm copper had a detrimental effect on learning and resulted in the formation …