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Stability Of Catfish Methyl Esters Under Normal Versus Accelerated Storage Conditions, Saowalee Jongrattananon
Stability Of Catfish Methyl Esters Under Normal Versus Accelerated Storage Conditions, Saowalee Jongrattananon
Theses and Dissertations
Oxidative storage stability was conducted to determine the optimum antioxidant for the production of catfish methyl esters (CFME) for use as biodiesel. Peroxide value, anisidine value, 2-thiobarbituric reaction substances, acid value, iodine value, UV absorbance, and induction period were measured. Antioxidant, stability parameters changed over a storage time of one year when stored at 25°C. The CFME were not stable to oxidation without the addition of TBHQ. When stored at 25°C, oxidative parameters indicated that CFME was a stable product that met oxidative stability standards when TBHQ was added. When held at 80°C for 28 days, the samples with TBHQ …
Instructional Leadership: Perceptions Of Mississippi Career And Technical Education Administrators And Teachers, Leanne Freeman (Cheryl Leanne Freeman) Long
Instructional Leadership: Perceptions Of Mississippi Career And Technical Education Administrators And Teachers, Leanne Freeman (Cheryl Leanne Freeman) Long
Theses and Dissertations
The purpose of this study was to determine perceptions of instructional leadership behaviors from Mississippi secondary career and technical education administrators and teachers in order to assist career and technical education administrators in becoming better instructional leaders. This research was conducted for the following purposes: (a) to determine which perceived instructional leadership behavior teachers consider most important, (b) to determine which perceived instructional leadership behavior administrators consider most important, (c) to determine if a difference exists in perceived instructional leadership behaviors between administrators and teachers, (d) to determine if a difference exists in perceived instructional leadership behaviors between career and …
Molecular And Biochemical Analysis Of Water Stress Induced Responses In Grape, Ramesh Katam
Molecular And Biochemical Analysis Of Water Stress Induced Responses In Grape, Ramesh Katam
Theses and Dissertations
Water stress affects vine productivity, disease tolerance, and enological characteristics of grape. Florida Hybrid Bunch grape are developed through hybridization of local grape spp with Vitis vinifera. These cultivars are mostly grown in southeast region of United States. Water deficit conditions resulted due to failure of rains in the region has developed concern among Florida grape growers to increase water use efficiency of grape. The goal of this research is to identify genes and proteins differentially expressed in response to water stress and to correlate these changes with enological characteristics. Investigating transcripts and proteins will allow us to correlate them …
Morphological And Physiological Changes In Laying Hens In Various Stages Of Non-Feed Withdrawal Molt, Ann Laster Mcdonald
Morphological And Physiological Changes In Laying Hens In Various Stages Of Non-Feed Withdrawal Molt, Ann Laster Mcdonald
Theses and Dissertations
Molting is a natural occurrence in the Avian species that can include a period of fasting. Animal rights groups view the longepted standard industry practice as inhumane. Based on influences from these groups and the recommendation of its scientific committee, United Egg Producers (UEP) requires members of its Animal Care Certified Program use a noneed withdrawal molting program, even though the morphological and physiological effects of this method have not been studied in depth and the existing literature provides contradictory results. Research regarding how to induce a noneed withdrawal molt has been performed using feed that is nutrient deficient or …
Formulation Of A Fruit Slush Using Evaporated Sweet Whey, Reginald Carl Sean Johnson
Formulation Of A Fruit Slush Using Evaporated Sweet Whey, Reginald Carl Sean Johnson
Theses and Dissertations
Wheyruit slush formulas were evaluated prior to consumer testing of pre-selected formulated beverages. Varying ingredients were prepared in accordance to a factorial design of maximum use of whey and minimum use of additional ingredients. Whey was obtained from the Mississippi State University Dairy Processing Plant and evaporated. The evaporated sweet whey was combined with blueberries, cherry concentrate, Splenda®, water and ice. Sensory tests were conducted to evaluate appearance, flavor and overall acceptability of formulations. Panelists were asked to participate in a survey to elaborate personal perceptions of the products. Formulation of 125mL whey and 30g blueberries had the higher acceptability …
Implementation And Evaluation Of A Health Promotion Program On University Campuses, Michelle Lanphere Lee
Implementation And Evaluation Of A Health Promotion Program On University Campuses, Michelle Lanphere Lee
Theses and Dissertations
Obesity is a national epidemic with approximately 66% of American adults overweight or obese, and more than 30% of Mississippians having a body mass index (BMI) of 30 or greater. Only 23% of adults eat the daily recommended servings of fruits and vegetables and 75% have sedentary lifestyles. Diet and exercise play pivotal roles in preventing chronic diseases. Mississippi In Motion (MIM) is a research based, peer-reviewed curriculum for a 12-week community program designed to promote healthy eating and physical activity, encourage social support, and build self-efficacy. Program objectives are for participants to consume 5-9 servings of fruits and vegetables, …
Social Support, Weight Loss Attempts And Satisfaction, Allison Drew
Social Support, Weight Loss Attempts And Satisfaction, Allison Drew
Theses and Dissertations
Objective: The purpose of this study was to determine the extent to which the presence of social support correlates with attempts at weight loss in the past 12 months, attempts not to gain weight in the past 12 months, and participants’ satisfaction with their weight status. Methods: We used a cross-sectional study design using data collected by the 2003-2004 and 2005-2006 National Health and Nutrition Examination Surveys (NHANES) (CDC). For this study we included males and females, of multiple ethnicities, and a range of ages from 40 to 70 + years. Participants with missing data on height and weight were …
A Correlational Study: The Relationship Between Physical Activity Levels, Physical Self-Worth, And Global Self-Worth In High School Physical Education Students, Ashley Danelle Eyre
A Correlational Study: The Relationship Between Physical Activity Levels, Physical Self-Worth, And Global Self-Worth In High School Physical Education Students, Ashley Danelle Eyre
Theses and Dissertations
The purpose of this study was to determine the relationship between physical activity levels, physical self-worth, and its sub-domains; (a) skill, (b) body attractiveness, (c) fitness and conditioning, and (d) strength, and overall global self-worth in high school students. One-Hundred and sixty-seven students (male = 66;female = 101) from the western United States, ages 13-18, participated in this study. Each participant completed a minimum of four days of physical activity (PA) data collection and completed the self-worth questionnaire. Pedometers were used to collect PA levels, calculating mean step counts, and the Children and Youth Physical Self-Perception Profile (CY-PSPP) was used …
Season Of Birth And Risk For Schizophrenia, Seth Roberts
Season Of Birth And Risk For Schizophrenia, Seth Roberts
Theses and Dissertations
Background: Schizophrenia is a chronic, debilitating mental disorder characterized by positive (e.g., hallucinations, delusions) and negative (e.g., catatonia, flat affect) signs and symptoms. Many studies suggest that individuals born in winter or spring months are at increased risk for schizophrenia. Study Objectives: 1) To determine whether season of birth affects risk for schizophrenia in the Irish Study of High Density Schizophrenia Families (ISHDSF). 2) To examine, by computer simulation, power to detect genetic associations with schizophrenia under a variety of conditions and using different analytic strategies. 3) To test whether specific genes are associated with schizophrenia in the Irish Case …
Effect Of Metro Living On Oral Cancers In Virginia: 2001-2005, Preeti Sastry
Effect Of Metro Living On Oral Cancers In Virginia: 2001-2005, Preeti Sastry
Theses and Dissertations
Background: Forty percent of all head and neck cancers occur in the oral cavity. According to ICD-O (International classification of diseases for oncology) C00-C14 includes cancers of the lip, oral cavity and pharynx. Studies have indicated that increased population density or Metro living have increased oral cancer incidence. The objectives of this study are to look at the distribution of Oral and Oro pharyngeal Cancers in Virginia from 2001-2005 The study aims to determine if there is an association between metro living (beale code 3) and advanced Oral Cancers. This study is also being done to determine if Metro living …
The Effect Of Liquid Hot Filling Temperature On Blow-Molded Hdpe Bottle Properties, Benjamin S. Hudson
The Effect Of Liquid Hot Filling Temperature On Blow-Molded Hdpe Bottle Properties, Benjamin S. Hudson
Theses and Dissertations
The occurrence of deformation in plastic bottles is a common problem in the bottling industry where bottles are blow molded, hot filled at high temperatures and sealed. Plastics have unique properties that make it difficult to predict when and why such changes may occur. The root cause of such deformation is unknown by many bottle producers and recent attempts have been made to minimize the occurrence of such defects. The purpose of this research is to determine which variables involved in the bottle production process influence bottle shape. Earlier variables that were tested included both blow molding resin and total …
Using Pedometers As A Valid Method Of Determining Physical Activity Intensity Level, Alan M. Groves
Using Pedometers As A Valid Method Of Determining Physical Activity Intensity Level, Alan M. Groves
Theses and Dissertations
As researchers explore the benefits of using pedometers to assess physical activity they are discovering that intensity of physical activity may be estimated from steps per minute (SPM). The purpose of this study was to determine the SPM and kilocalories (kcals) expended associated with moderate physical activity in middle school students (12 - 14 years old). Methods: Ninety-three (49 boys, 44 girls) middle school youth between the ages of 12 and 14, walked on a treadmill at four different speeds (4.0, 4.8, 5.64, and 6.4 km/h) for three minutes at each speed. Each participant wore a pedometer in order to …
Does Light Control Algal Abundance In Large River Systems?, Amy Macdonald
Does Light Control Algal Abundance In Large River Systems?, Amy Macdonald
Theses and Dissertations
A limited amount of research has been done to investigate the factors influencing algal abundance in large river systems. This study examines light as the primary factor that controls algal abundance in the Upper Mississippi, Missouri and Ohio Rivers. Data were collected for 2004 in conjunction with the Environmental Monitoring Assessment Program- Great River Ecosystems EMAP-GRE project using EPA approved methods. Chlorophyll a concentrations were 34.6 µg•L-1 in the Upper Mississippi, 19.8 µg•L-1 in Missouri River and 9 µg•L-1 in the Ohio River for 2004. Chlorophyll a concentrations were significantly different among the three rivers (p<0.0001) but not between years. Inter-river variation could be loosely correlated with light availability: mean Average Irradiance Dosages, which consider factors that affect light climate (depth, transparency, velocity, surface irradiance), by river corresponded with mean chlorophyll a levels by river. Intra-river variation seemed to be due to both the influence of light and nutrients.
Teacher And Technology: How Faculty Resource Centers Can Enhance Higher Education Teaching And Learning, John T. Freden
Teacher And Technology: How Faculty Resource Centers Can Enhance Higher Education Teaching And Learning, John T. Freden
Theses and Dissertations
As many classrooms around the world utilize instructional technology to attempt to enhance student learning, the faculty resource centers that support this instructional technology are sometimes left out of the equation. This study asks the question "What can faculty resource centers do to help teachers integrate instructional technology to improve student learning?" To help answer this question surveys were sent out to educators at two different higher education institutions. Questions were asked in a survey about the educators' background information, instructional technology, and faculty resource centers. The , information gathered from this survey is useful to faculty resource centers as …
Tolerance And Accumulation Of Copper, Lead And Zinc By Ceratopteris Richardii, Dorothy Jelagat Cheruiyot
Tolerance And Accumulation Of Copper, Lead And Zinc By Ceratopteris Richardii, Dorothy Jelagat Cheruiyot
Theses and Dissertations
Environmental contamination has increased rapidly in recent years. There is a need to develop cheap and environmentally friendly remediation methods. Numerous studies have evaluated the ability plants to remove contaminants from the environment. The present study evaluated the ability of Ceratopteris richardii gametophytes and sporophytes to tolerate copper, lead and zinc and for the sporophytes to accumulate the three metals in their shoots. Spores were sown in plant medium treated with varying concentrations of Cu, Pb and Zn. Fifteen-day- old sporophytes were transferred into medium mixed with varying concentrations of the three metals. Ceratopteris richardii tolerated and accumulated each of …
Resurrecting Speranza: Lady Jane Wilde As The Celtic Sovereignty, Heather Lorene Tolen
Resurrecting Speranza: Lady Jane Wilde As The Celtic Sovereignty, Heather Lorene Tolen
Theses and Dissertations
This thesis explores the ways in which Lady Jane Wilde, writing under the pen name of Speranza, established ethos among a poor, uneducated, Catholic populace from whom she was socially and religiously disconnected. Additionally, it raises questions as to Lady Wilde's exclusion from the roster of Irish literary voices who are commonly associated with the Irish Literary Revival, inasmuch as Lady Wilde played a critical, inceptive role in that movement. Lady Jane Wilde, mother of Oscar Wilde, was an ardent nationalist who lived in Victorian Ireland. She contributed thirty-nine poems and several essays to the Nation newspaper—a nationalist publication—under the …
Effects Of Motivational Interviewing On Levels Of Physical Activity In Older Adults, Anna M. Pignol
Effects Of Motivational Interviewing On Levels Of Physical Activity In Older Adults, Anna M. Pignol
Theses and Dissertations
In Canada, 68% of women and 53% of men 65 and older are inactive. Physical activity is crucial for older adults being able to maintain physical and mental health, as well as quality of life. Even the frail, chronically ill, and very old adults can increase mobility and functioning through physical activity. The current study examined the effects of Motivational Interviewing (MI) on levels of physical activity in older adults. A total of 86 participants aged 55 and older were recruited in Prince Edward Island. Participants were randomly assigned by gender to the intervention plus information or to an information …
Hair, Feces And Breath Isotope Fractionation In Alpacas (Llama Pacos), Llamas (Llama Glama) And Guanacos (Llama Guanacoe) From Bolivia And Chile, Lino Constancio Lopez Lopez
Hair, Feces And Breath Isotope Fractionation In Alpacas (Llama Pacos), Llamas (Llama Glama) And Guanacos (Llama Guanacoe) From Bolivia And Chile, Lino Constancio Lopez Lopez
Theses and Dissertations
This study was conducted to determinate carbon and nitrogen isotope fractionation in Bolivian and Chilean alpaca, llama and guanaco, hair, breath, plasma and feces. We also wanted to determine forage selection for these camelids using stable isotope technology. From the data, niche feeding and diet selection habits will determinate based on fecal composition. Bolivian sites were located near the high snow Altiplano Mountains at Tomarapi, Sajama, and at the Technical University Oruro's research center at Condoriri, Bolivia. Chilean samples were collected at INIA's (Instituto Nacional de Investigacion Agropecuaria) Kampenaike Research Station, Punta Arenas, Chile. Bolivian alpacas and llamas were 3 …
Physical Mapping Of Ribosomal Genes In New World Members Of The Genus Chenopodium Using Fluorescence In Situ Hybridization, Maria C. Sederberg
Physical Mapping Of Ribosomal Genes In New World Members Of The Genus Chenopodium Using Fluorescence In Situ Hybridization, Maria C. Sederberg
Theses and Dissertations
The genus Chenopodium contains many economically important species in the New World, but is relatively understudied and poorly understood, especially in terms of evolutionary relationships. A better understanding of the structure of this genus could significantly help in breeding efforts on its cultivated members, notably the tetraploid C. quinoa and also certain varieties of C. berlandieri, also tetraploid. Of special concern is determining which diploid weed species are the most likely ancestors for C. quinoa, C. berlandieri, and the other tetraploid members of subsection Cellulata. The phylogeny can be understood in part by examining the ribosomal RNA loci and observing …
Applications Of The Bivariate Gamma Distribution In Nutritional Epidemiology And Medical Physics, Jolene Barker
Applications Of The Bivariate Gamma Distribution In Nutritional Epidemiology And Medical Physics, Jolene Barker
Theses and Dissertations
In this thesis the utility of a bivariate gamma distribution is explored. In the field of nutritional epidemiology a nutrition density transformation is used to reduce collinearity. This phenomenon will be shown to result due to the independent variables following a bivariate gamma model. In the field of radiation oncology paired comparison of variances is often performed. The bivariate gamma model is also appropriate for fitting correlated variances. A method for simulating bivariate gamma random variables is presented. This method is used to generate data from several bivariate gamma models and the asymptotic properties of a test statistic, suggested for …
Experimental Polychondritis: Induced Vs. Spontaneous., Jennifer L. Lamoureux
Experimental Polychondritis: Induced Vs. Spontaneous., Jennifer L. Lamoureux
Theses and Dissertations
We demonstrate evidence supporting two independent hypotheses related to experimental polychondritis: (1) co-expression of a “nonpathogenic” HLA-DQ allele with a “pathogenic” allele results in enhanced susceptibility to disease; and (2) age related immunological changes allow for the spontaneous onset of disease. Relapsing polychondritis (RP), a human autoimmune disease of unknown etiology in which cartilaginous sites are destroyed by cyclic inflammatory episodes, occurs most commonly during middle age. Collagen-induced polychondritis (CIP) develops in heterologous type II collagen (CII) immunized young (6–8 wk old) mice expressing HLA-DQ6α8β transgenes (tg) regardless of gender, and mirrors clinical RP. Although both DQ6αβ8αβ tg and DQ6α8β …
Risk Factors, Chronic Disease, And Functionality Of Native American And Alaskan Native Elder Populations., Leander Russell Mcdonald
Risk Factors, Chronic Disease, And Functionality Of Native American And Alaskan Native Elder Populations., Leander Russell Mcdonald
Theses and Dissertations
Functional limitation rates are lower for American Indian and Alaskan Native elders although they experience higher rates of chronic disease. Research concerning the relationship between functional limitation, chronic disease and health risk factors among American Indian and Alaskan Native elder populations is limited. This paper contains results of an analysis of chronic disease's affect on functional limitation and the affect of health risk factors on chronic disease from a survey of 9,296 Native elders representing over 100 tribes from 88 sites. The self-reported data were gathered by elder providers using face-to-face interviewing and a standardized survey instrument. The sampling design …
Program Approach For Childheaded Households In Zambia, Samson Chama
Program Approach For Childheaded Households In Zambia, Samson Chama
Theses and Dissertations
Using an emergent design, this study developed a program approach for young people in the child headed households of Zambia. Phase I dealt with prior ethnography, Phase II focused on independent living services, and Phase III concerned translation to Zambia. A total of 36 participants from Richmond, consisting of 20 Richmond Department of Social Services workers and youth and 16 Africans, were recruited. Three major themes emerged: feasibility, content, and quality. Lessons learned about translational research highlight the need for uniformity in a cultural screen’s composition. This might enhance the richness of perspectives on young people. Lessons for the Department …
The Antioxidant Defense Network: Synergistic Combinations To Prevent Oxidative Damage, Amy Marie Clement
The Antioxidant Defense Network: Synergistic Combinations To Prevent Oxidative Damage, Amy Marie Clement
Theses and Dissertations
One of the matchless ironies of the human body is its requirement for the highly reactive oxygen molecule, which has been clearly implicated in many diseases and the aging processes. Oxidants produced by metabolic processes damage cells by starting chemical chain reactions including oxidation of DNA and proteins as well as lipid peroxidation. Damage to DNA can cause mutations and lead to cancer if not reversed by DNA repair mechanisms. Damage to proteins causes enzyme inhibition, denaturation and protein degradation. Lipid peroxidation can cause cell lysis as well as creating mutagenic and carcinogenic by-products. The human body contains antioxidants and …
Adequacy Of Labor Epidural Information For Informed Consent, Darla J. Adams
Adequacy Of Labor Epidural Information For Informed Consent, Darla J. Adams
Theses and Dissertations
Legally and ethically, obtaining informed consent for labor epidural analgesia means that the patient has a substantial understanding of the risks and benefits of the procedure. The purpose of this study was to determine if labor epidural analgesia education provided by Certified Registered Nurse Anesthetists (CRNAs) to expectant women during antenatal childbirth education classes improved the recall of risks associated with labor epidural analgesia. This study also determined pregnant women's sources of labor epidural information and the perceived adequacy of that information. The role of the antenatal childbirth education class as an opportunity for labor epidural education from trained anesthesia …
Characterization Of Adrenergic Receptor Subtypes In The Rodent Hippocampus, Christopher A. Knudson
Characterization Of Adrenergic Receptor Subtypes In The Rodent Hippocampus, Christopher A. Knudson
Theses and Dissertations
Catecholaminergic input, acting through adrenergic receptors (AR), serves an important role in regulating the activity of the hippocampus; however, the synaptic elements whereby the abundant input mediates its actions remains obscure. Immunohistochemical and molecular biological techniques and a variety of experimental animal models, were used to examine the adrenergic receptor profiles displayed by distinct populations of neurons (interneurons and principal cells) or glial in rodent hippocampus. In the adult rat, immunoreactive puncta for eight of the nine adrenergic receptor subtypes were differentially distributed amongst regional glia, blood vessels, and neurons of the subiculum, hippocampus proper and dentate gyrus. Developmentally, there …
An Examination Of The Prevalence Of Obesity And Student Performance In A Low Socioeconomic School District, Mary L. Hillones
An Examination Of The Prevalence Of Obesity And Student Performance In A Low Socioeconomic School District, Mary L. Hillones
Theses and Dissertations
Since few studies exist that examine the relationships between adolescent obesity and academic performance, the purpose of this study was to examine the impact of obesity on high school students’ academic performance in a low socioeconomic school district. The topics addressed in this study included prevalence of overweight and obesity in high school students and the impact of overweight and obesity on student academic performance. The potential population of this study consisted of 236 high school students aged 14 to 19 years old enrolled in a rural Mississippi school district in grades 9 -12. However, only 35 students had usable …
A Comparison Of The Effects Of Online Synchronous Versus Online Asynchronous Versus Traditional Approaches On Learner Achievement Via Education Of Mississippi Child Care Providers, Carla Caldwell Stanford
A Comparison Of The Effects Of Online Synchronous Versus Online Asynchronous Versus Traditional Approaches On Learner Achievement Via Education Of Mississippi Child Care Providers, Carla Caldwell Stanford
Theses and Dissertations
The purpose of this quasi-experimental study was to compare three types of instruction: online synchronous, online asynchronous, and traditional, and assess which would yield more learner achievement. Participants for the online groups volunteered then were randomly assigned to either the online synchronous or the online asynchronous. Participants for the traditional group were also voluntary but were not randomly assigned; all that volunteered for the traditional group were accepted. In the final sample, a total of 96 Mississippi child care professionals completed the course Early Learning Guidelines: Lesson Plans and Thematic Units for Three Year Old Children: 31 in the online …
Characterization Of Fresh Muscle Pigments In Channel Catfish And Their Influence By Chilling Stress, Youkai Lu
Characterization Of Fresh Muscle Pigments In Channel Catfish And Their Influence By Chilling Stress, Youkai Lu
Theses and Dissertations
Color and color components are important quality attributes for fresh channel catfish muscle. The objective of the present research was to obtain inside understanding regarding color distribution, color component stability and the pre-slaughter conditions influence on color and color components and other quality attributes. Catfish fillets were rendered to be paler and redder on iced storage; and paler, less red and less yellow by ice-water chilling process. Visual classified “reddish” catfish fillets had higher heme-protein content than “white” fillets and these pigments were derived mainly from hemoglobin. Pre-slaughter live fish chilling in ice water and bleeding at slaughter also slightly …
Physiological Impact Of Hematocrit Level During Stress In Broilers, Lindsay Hale Mcwilliams
Physiological Impact Of Hematocrit Level During Stress In Broilers, Lindsay Hale Mcwilliams
Theses and Dissertations
Initial experiments evaluated the impact of hematocrit on a bird’s ability to adapt to stress and what physiological mechanisms occurred to maintain oxygen carrying capacity (OCC). A final experiment was conducted to obtain proteomic evaluation of protein expression in monocytes of unstressed broilers. In initial experiments, ACTH treatment was applied to hematocrit separated broilers. Experiments evaluated effects of ACTH on broilers with low (19 to 22%, Experiment 1; 18-21%, Experiment 3), high (25 to 28%, Experiment 1; 24 to 27%, Experiment 3) or non-selected hematocrit levels (Experiment 2 and 3). After 4 d of ACTH, all treated birds had significantly …