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The Relationship Between A Series Of Vitamin D Levels And A Blood Glucose Level In Pregnant Women In The Upper Midwest, Jeanine Louise Senti

Theses and Dissertations

Hyperglycemia during pregnancy is associated with adverse outcomes for both mother and offspring. In order to facilitate glucose delivery to the fetus, insulin resistance increases as gestation progresses which results in hyperglycemia if the mother’s body is unable to compensate by producing adequate insulin in response to these changes in glucose metabolism. Evidence suggests that calcidiol (vitamin D) influences insulin sensitivity and glucose metabolism in the non-pregnant population yet there are inconsistent findings on the effects of calcidiol on maternal glucose levels during pregnancy. A secondary analysis was completed on a de-identified data set. The original prospective study included a …

Control Of Bovine Pyruvate Carboxylase Expression By Saturated And Unsaturated Fatty Acids And Impact On Fatty Acid Metabolism, Katherine Elizabeth Boesche

Open Access Dissertations

Pyruvate carboxylase (PC; EC 6.4.1.1) ostensibly links carbohydrate and lipid metabolism by supplying oxaloacetate (OAA) from the carboxylation of pyruvate. The OAA pool is necessary in maintaining the anaplerotic supply of carbons to the TCA cycle, and to promote the complete oxidation, to CO2, of acetyl-CoA. The actions of PC in supplying OAA are critical during periods of increased cellular lipid load, including the negative energy balance experienced by periparturient dairy cows. The bovine PC gene contains three promoter sequences, with products of the proximal promoter (PCP1) being specific to glucogenic and lipogenic tissues. Previous work links control of bovine …

Investigation Of Acute Stress Impact On Nursery Pig Gastrointestinal Function And Ability Of Bioactive Components Of Garlic To Mitigate Stress-Induced Physiological Changes, Nathan Lane Horn

Open Access Dissertations

Experiments were conducted to determine the effect of post-weaning feed and water deprivation on nursery pig growth performance, gastrointestinal function, and ability of garlic-derived diallyl disulfide (DADS) and diallyl trisulfide (DATS) to mitigate deprivation-induced effects. For the first experiment, the effects of a 24-h post-weaning feed, water, or feed + water deprivation event on nursery pig growth and intestinal characteristics were determined. Water deprivation more severely impacted nursery pig growth and intestinal measurements compared to feed deprivation. The water deprivation event resulted in an increase in serum stress markers and altered intestinal morphology and tight junction gene expression during the …

Health Care Resource Use, Health Care Expenditures And Absenteeism Costs Associated With Osteoarthritis, Jyothi Menon

Open Access Dissertations

Menon, Jyothi, Ph.D., Purdue University, December 2015. Health Care Resource Use, Health Care Expenditures and Absenteeism Costs Associated with Osteoarthritis. Major Professor: Joseph Thomas III.

Manganese Toxicity: Accumulation In Bone, Effect On Brain Neurochemistry, And Impact On Adult Neurogenesis, Stefanie O'Neal

Open Access Dissertations

O’Neal, Stefanie L. Ph.D., Purdue University, December 2015. Manganese Toxicity: Accumulation in Bone, Effect on Neurochemistry, Impact on Adult Neurogenesis. Major Professor: Wei Zheng.

Associations Between The Built Environment And Physical Activity From Analyses Of Spatial Clusters, Trail Use, And Locations Where Physical Activity Occurs, Kosuke Tamura

Open Access Dissertations

Over the past two decades, an increasing number of scientific studies have examined associations between the built environment and physical activity and obesity. These studies have documented positive associations between environmental variables, such as population density, street connectivity, and composite measures of neighborhood walkability and physical activity. Studies have also shown inverse relationships between the presence of neighborhood grocery stores and recreational facilities and obesity. Despite this evidence, there continues to be limitations in built environment studies conducted to date. The three dissertation studies described here were designed to address several different aspects of built environment research that warrant greater …

Economic Development And Child Nutrition In Nepal, Ganesh Thapa

Open Access Dissertations

Child malnutrition rates in Nepal are among the highest in the world. Government and non-governmental agencies are actively seeking various pathways that might be useful to improve child nutrition outcomes in Nepal, fill gaps in understanding surrounding nutrition drivers, and shorten the time required to attain the Millennium Development Goals. This dissertation includes three essays that use a range of data, including nationally representative data on the growth of children nutrition below five years of age, to identify potential pathways for improving child nutrition in Nepal.

Notch Signaling Regulates Adipogenesis And Energy Metabolism, Pengpeng Bi

Open Access Dissertations

Evolutionarily unprepared for high caloric diets and sedentary lifestyles, humans are now unprecedentedly susceptible to obesity and its associated metabolic disorders. Obesity is resulted from malfunction of the overloaded white adipocytes, which are the primary default storage sites of energy surplus. Another two types of adipocytes can also be found in human: beige and brown adipocytes. In opposite to white adipocytes, beige and brown adipocytes ameliorate obesity by burning lipids for thermogenesis. Thus, an increase in beige/brown adipocyte content in adipose tissue, termed browning would raise energy expenditure and reduce adiposity.

Effects Of High-Protein And High-Fiber Breakfasts On Preschoolers' Feelings Of Fullness, Diet Quality And Memory, Mary Catherine Brauchla

Open Access Dissertations

ABSTRACT

Antecedents And Consequences Of Consumer – Customized Product Identification: An Identity Theory Perspective, Soyeon Kwon

Open Access Dissertations

Customization is considered one of the key sources of value creation in a highly competitive and segmented market. Recent research has demonstrated that the key to successful customization experiences lies in the degree to which consumers feel connected to a product that is customized. This study investigated consumers’ psychological connection to customized products by exploring the variable, “consumer-customized product identification (C-C identification).” Building upon identity theory and research on “extended self,” this study investigated (1) two key antecedents that influence C-C identification, (2) attitudinal and behavioral consequences of C-C identification, and (3) the moderating role of product involvement in C-C …

Dietary And Exercise Effects On Neural Responses To Visual Food Stimuli In Overweight And Obese Adults, Richard Sayer

Open Access Dissertations

Results from human neuroimaging studies consistently demonstrate that obesity is associated with altered neural reward processing of food-relevant cues. These observations have caused some investigators to question whether behavioral interventions such as dietary manipulations or physical activity might modulate processing of food cues in reward-related brain regions. The use of functional magnetic resonance imaging (fMRI) to measure neural responses to visual food stimuli is a commonly utilized paradigm for assessing neural reward responses relating to ingestive behavior of foods in humans. Using this study design, limited evidence suggests that increases in dietary protein and participation in acute and chronic aerobic …

Essays On Nudging Customers’ Behaviors: Evidence From Online Grocery Shopping And Crowdfunding, Na Zhang

Open Access Dissertations

The dissertation consists of three essays that employ predictive analytics, structural modeling techniques and field experiments to understand and nudge customers’ behaviors in two types of online engagement platforms. The first one is customers’ purchase behaviors in an online grocery store and the other is customer’ contribution behaviors in a reward-based crowdfunding platform. In both contexts, we study how to actively nudge their behaviors. In Chapter 2, we investigates how, when dealing with products that are available in limited quantities, customers may be nudged to purchase them. Specifically, our main problem is to identify targeted customers to receive the limited …

Cultivating Multicultural Education In Islamic Schools In The U.S: Teachers' Perspectives About Diversity In Islamic Schools, Kadriye El-Atwani

Open Access Dissertations

The purpose of this study was to examine the perspectives of six teachers who have taught in Islamic schools in the U.S. to comprehend the general context of multicultural education in Islamic schools. This study was designed as a descriptive collective case study primarily to investigate how racial, class, national, language and gender diversity were observed in six different Islamic schools’ climates and classrooms. Designing this research as a collective case study fostered the exploration of various social dynamics among Muslim communities in the U.S., and exemplified different characteristics of Muslim communities through the six cases. Key findings and analyses …

Race. Nation. Zombie: Imperial Masculinities Gazing At The Undead, Adryan Glasgow

Open Access Dissertations

This dissertation argues that zombie narratives have always been about white masculinity and that colonialism is the true living dead monster. The zombie is not the load-bearing signifier in these stories. It is the white men who act as representatives of empire that embody tropes and evolve. This dissertation examines the survivor masculinity in zombie films over time to see how hegemonic masculinity has adapted to a range of national crises. I argue that the failure of white masculinities in these films and novel is rooted in the limited ways of knowing inherent in the Imperial Gaze. Starting in the …

Habit Formation In A Rodent Model Of Alcoholism: Genetic Susceptibility, Alcohol-Specific Effects, And Pharmacological Manipulation, David Scott O'Tousa

Open Access Dissertations

Habit formation is a well-characterized process involving a shift from response-outcome as the leading driving force underlying action to a stimulus-response mechanistic process. It is hypothesized that a transition from goal-directed behavior to habitual behavior is driven by a transition of the bulk of cognitive load from neocortical toward lower neurological mechanisms. While many neurotransmitter systems have a demonstrated involvement in this process, the dopamine system is particularly implicated. Habit formation is assessed through the maintenance of extinction responding for an undesired, or devalued, outcome.

Drug Delivery To Solid Tumors Via Polymeric Nanoparticles, Sara Ahmed

Open Access Dissertations

A main challenge in chemotherapy is to deliver an anti-cancer drug selectively to tumor and avoid off-target exposure to other body tissues and organs. Nanoparticles (NPs) have been considered a promising approach for tumor drug delivery, with popularity attributable to the famous “Enhanced Permeability and Retention effect”, where small particles enter tumor tissues through leaky vasculature and be retained there. Currently, the phagocytic clearance of NPs is avoided by coating NP surface with Polyethylene glycol (PEG). Although successful in prolonging NPs circulation, PEG prevents proper interaction of NPs with the target cells, known as “PEG dilemma”. Low molecular weight chitosan …

Relationships Between Behavioral Measures And Productivity In Growing Beef Cattle, Kelsey Bruno

Theses and Dissertations--Animal and Food Sciences

The relationships between behavioral measures, growth performance, and immunocompetence in receiving beef steers were explored in three experiments. Specifically, exit velocity (EV) and objective chute score (OCS) were examined as temperament measures. In experiment 1, no main effects or interactions with degradable intake protein (DIP) or interactions between temperament measures were observed (P ≥ 0.11); however, high OCS steers had greater intake and gain:feed (P < 0.10) and slow EV steers had higher intake and gain (P < 0.10) than their counterparts. In experiment 2, during week two of social observations, dominance hierarchy rankings were dependent on OCS and EV (P < 0.05); slow EV steers also had increased antibody responses and gain (P < 0.10) and high OCS steers had increased gain (P < 0.10). In experiment 3, subjective chute scores and OCS were positively correlated (P < 0.01) and both EV and OCS treatments changed over time (P < 0.10); intake, vaccine titer response, and gain:feed responses to monensin were dependent on OCS treatment (P < 0.10). The studies suggest that temperament, measured by EV and OCS, affects growth performance and health related measures and is related to social dominance behavior in receiving beef steers.

An Evaluation Of Precision Dairy Farming Technology Adoption, Perception, Effectiveness, And Use, Matthew Richard Borchers

Theses and Dissertations--Animal and Food Sciences

Precision dairy farming technologies provide a variety of functions to dairy farmers. Little is known about dairy producer perception of these technologies. A study was performed to understand dairy producer perception of parameters monitored by precision dairy farming technologies. Calving has potential to be predicted using these same parameters and technologies. A second study was performed using two commercially marketed technologies in calving prediction. In order for these technologies to generate accurate and useful information for dairy farm use, they must accurately quantify these parameters. The final study evaluated the accuracy of five commercially marketed technologies in monitoring feeding, rumination, …

Effects Of Post-Hatch Holding Time And Early Nutrition Strategies On Growth Performance, Carcass And Skeletal Characteristics Of Young Chickens, Marquisha A. Paul

Theses and Dissertations--Animal and Food Sciences

The study objectives of this thesis were to evaluate the effects of delayed feeding and specific aspects of the Programmed Nutrition (PN) feeding strategy (Alltech, Inc.) on growth performance, carcass characteristics, and skeletal characteristics of commercial broiler chicks through market age, as well as investigate the effects of breed and the PN feeding strategy on early growth and development. When commercial broiler chicks were fed reduced nutrient diets, delayed feeding decreased early growth performance and carcass yield (P<0.05), whereas post-hatch PN conditioning for 72 hours improved early growth performance and alleviated the negative effects of delayed feeding on carcass yield (P<0.05). Through market age, delayed feeding improved Gain: Feed (P<0.05), while PN had the opposite effect. Interactive effects and main effects of delayed feeding and PN were observed for tissue mineral concentration (P<0.05). PN lowered bone ash % (P<0.05) and increased meat oxidation of broiler chicks during storage (P<0.05). PN also had negative effects on early growth performance and bone breaking strength (P<0.05) of various meat-type breeds, but especially for non-commercial, moderate-growing or fast-growing breeds. In conclusion, PN may be suitable for commercial broiler chicks that experience delayed feeding and are fed reduced nutrient diets.

Algae Or Yeast Supplementation For Lactating Dairy Cows, Maegan E. Weatherly

Theses and Dissertations--Animal and Food Sciences

The objective of the first study was to quantify the effects of feeding Schizochytrium sp. microalgae (SP-1, Alltech, Inc., Nicholasville, KY) on milk fat and DHA content. Eight cows were fed: 0, 100, 300, or 600 g of algae per day. Fat percentage was greater (P < 0.05) for cows on treatments 0 g and 100 g than for cows on treatments 300 g and 600 g (P < 0.05). Docosahexaenoic acid in milk was greater for cows on treatment 300 and 600 than for cows on treatment 0 and 100 (P < 0.05).

The objective of the second study was to assess yeast supplementation effects on high and low forage dairy cow diets. Four cows were assigned to 1 of 4 treatments: 1) low forage (LF), 2) low forage with 10 g/d yeast (Yea-Sacc®; Alltech Inc., Nicholasville, KY; LFY), 3) high …

Using The Indicator Amino Acid Oxidation Technique To Study Threonine Requirements In Horses Fed Different Feed Compositions, Chanhee Mok

Theses and Dissertations--Animal and Food Sciences

Threonine has been reported to be the second limiting amino acid in typical equine diets, but its actual requirement has not been determined in horses. The indicator amino acid oxidation (IAAO) method has been successfully used for evaluating amino acid metabolism and requirements in animals and humans. The objective of this research was to use the IAAO method to estimate threonine requirements in mature horses fed two different feed compositions. In the first study, 6 Thoroughbred mares (4 – 16 years old) received each of 6 levels of threonine intake in a high concentrate diet, in a randomly determined order. …

Impact Of Starch Source On Equine Hindgut Microbial Ecology, Brittany Elizabeth Davis Harlow

Theses and Dissertations--Animal and Food Sciences

Grain inclusion in equine diets can allow starch to reach the hindgut where bacteria compete for the substrate. The hypothesis was that starch introduction would cause a source-dependent press disturbance in equine fecal microflora. Fecal cell suspensions were prepared by differential centrifugation and re-suspension in media with ground corn, oats or wheat. At 24 h, corn had more amylolytics and Group D Gram-positive cocci (GPC), and fewer lactate-utilizing (LU) bacteria and lactobacilli than oats, with wheat being intermediate. Predominant amylolytics were identified by their 16S RNA gene sequence as Enterococcus faecalis (corn, wheat) and Streptococcus bovis (oats). In an in …

Vol. 40, No. 4: Holiday 2015, School Of Medicine & Health Sciences

North Dakota Medicine Archive

No abstract provided.

Law, Bioethics, And Medical Futility: Defining Patient Rights At The End Of Life, Frederick R. Parker Jr.

University of Arkansas at Little Rock Law Review

No abstract provided.

The Effect Of An Online Coping Skill Application On Relapsing-Remitting Multiple Sclerosis Sufferers, Jennifer H. Garrison

Walden Dissertations and Doctoral Studies

Many individuals with multiple sclerosis (MS) are classified as having relapsing-remitting MS (RRMS), a form of the illness that requires constant symptom management for suffers to achieve optimum outcomes. There are only a few community-based educational programs that exist to help RRMS sufferers cope with their illness; the effectiveness of those that have been fielded has not yet been adequately assessed. The research questions of this study were to determine if an online training development module would increase the coping skills of those affected by RRMS and if the online educational module would be more effective at improving the coping …

Program For Healthcare Personnel To Improve Anti-Hypertensive Medication Adherence In Black Adults, Verena D. Johnson

Walden Dissertations and Doctoral Studies

Medication nonadherence is a healthcare problem that costs the United States billions of dollars annually. The purpose of this project was to propose an evidence-based program for healthcare personnel to increase the rate of medication adherence in hypertensive Black adults who require daily, oral medication. The transtheoretical model of change was used to explain the process of change and to identify approaches to changing non-adherent behaviors related to medications. Motivational interviewing was used to explain the process that nurse-educators would use to guide patients through the stages of change. In the initial step of this quality improvement program, a convenience …

Learned Helplessness And Depression: Comparison Of Skilled Nursing And Assisted Living Facilities, Paul Lynn Susic

Walden Dissertations and Doctoral Studies

Research with geriatric populations suggests high levels of clinical depression and greater financial and psychological costs of treatment in long-term care facilities with more restrictive care. Research on learned helplessness, a construct separate from depression, suggests learned helplessness and perceived control are useful theories for the study of elder depression, but the relationship between depression and learned helplessness in this population is not clear. This cross-sectional quantitative study examined the relationship between depression and learned helplessness by comparing residents over age 65 in less restrictive assisted living (n =42) versus those in more restrictive skilled nursing facilities (n =63). Data …

A Mindfulness-Based Stress Reduction Psychoeducational Program In Postpartum Support Groups, Marina Pesserl

Walden Dissertations and Doctoral Studies

Postpartum Depression (PPD) affects 15% of women after childbirth. Its etiology includes psychoneuroimmunologic factors with long-lasting postpartum stressors that lead to allostatic overload. Using mindfulness-based stress reduction (MBSR) for PPD has not yet been studied. Addressing this literature gap, the potential benefits of including an 8-week MBSR component based on Beck's theory of PPD at support groups were examined in this phenomenological study based on a sample of 10 women and 2 group facilitators. Purposes of the study included describing the experience of PPD and the MBSR program, identifying the stage of behavioral change of the participants, and describing the …

Teachers' Perceptions Of Multimodal Literacies In Middle School Health Literacy Programs, Cynthia Darlene Jackson-Howard

Walden Dissertations and Doctoral Studies

Health literacy, defined as the ability to understand and use health information to make informed decisions, is critical to maintaining health; however, not all U.S. states mandate strategies to improve adolescents' health literacy. Moreover, many middle school teachers are often unaware of how their roles could improve the health literacy of their students. Multimodal literacies help students to create meaning through viewing print-based resources and using digital technologies. The purpose of this study was to investigate teachers' perceptions of the effectiveness of multimodal literacies on adolescents' overall health literacy via the introduction of health literacy programs into the curriculum. This …

Growing A Student Organic Garden Within The Context Of University Sustainability Initiatives, Leslie A. Duram, Laura L. Williams

Publications

Abstract:

Purpose- The purpose of this paper is to examine the evolution of a student organic garden at a large public university, as an example of student initiatives that promote both campus sustainability and student-focused sustainability education on campus.

Design/ Methodology/ Approach- The authors conducted quantitative and qualitative analysis to document the evolution of the university’s Local Organic Gardening Initiative of Carbondale (LOGIC), which is the student initiated and operated organic garden.

Findings- The student organic garden evolved in three stages, each of which had specific goals and accomplishments. Stage I (establishment): students in Geography courses took action to get …