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2005

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Development, Evaluation And Characterization Of Protein-Isoflavone Enriched Soymilk, Janette Ethel-Pessi Saidu Jan 2005

Development, Evaluation And Characterization Of Protein-Isoflavone Enriched Soymilk, Janette Ethel-Pessi Saidu

LSU Doctoral Dissertations

Adequate provision of soy isoflavone and protein in soybean products is essential in meeting the soy health claim and the promotion of a healthy product. Commercial soymilks contain inadequate amounts of protein and isoflavone to meet the FDA recommended 25g and 40-50mg/day level, respectively, in 1-2 servings. This research study set out to investigate the possibility of producing a protein-isoflavone enriched (PIE) soymilk by incorporating soy germ in soymilk to provide the recommended FDA level in 1-2 servings. Three PIE soymilks containing 25 (SG25), 30 (SG30), and 35% (SG35) germ were prepared and compared to 100% whole soybean milk (WSB-control) …

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The Effects Of Aluminum Concentration On Growth Responses In Six Spartina Alterniflora Genotypes, Daniel Farrell Becker Jan 2005

The Effects Of Aluminum Concentration On Growth Responses In Six Spartina Alterniflora Genotypes, Daniel Farrell Becker

LSU Master's Theses

Elevated soluble aluminum concentrations can adversely affect plant growth. During a drought, wetland soils may experience higher than normal soluble aluminum due to the oxidation of metal sulfides and resulting decreases in pH, which mobilizes metallic cations. Louisiana coastal salt marshes were subject to a record-setting drought in the winter and spring of 2000 which was coincident with the die-off of large expanses of salt marsh, termed " brown marsh ". Spartina alterniflora was the primary plant species affected. However, because some individuals within large areas of die-off survived the brown marsh event, they may have been the more resistant …

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Patient Satisfaction With Nurse Practitioner Delivered Primary Health Care Services, Lucie J. Agosta Jan 2005

Patient Satisfaction With Nurse Practitioner Delivered Primary Health Care Services, Lucie J. Agosta

LSU Doctoral Dissertations

The purpose of this study was to explore and determine the degree of client satisfaction with utilization of primary healthcare services delivered by a nurse practitioner in the Employee Health Services department of a not for profit hospital in the Southern United States. The Nurse Practitioner Satisfaction Survey (NPSS), a 28-item Likert-type survey instrument was specifically developed for this study and administered to a sample of 300 clients. Overall high levels of patient satisfaction with nurse practitioner delivered health care services were demonstrated. The mean general satisfaction score was determined to be 86.86 / 90, with mean communication and scheduling …

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Development Of Non-Dairy Frozen Dessert Containing Soy Protein And Coconut Milk, Luciana Soler Jan 2005

Development Of Non-Dairy Frozen Dessert Containing Soy Protein And Coconut Milk, Luciana Soler

LSU Master's Theses

As consumers have pursued healthier lifestyles in recent years, consumption of soy foods has risen steadily, encouraged by scientific studies showing health benefits from these products. There is a large market for ice cream in the United States. However, since ice cream contains dairy ingredients, a number of Americans are not able to consume it because of dietary habits due to religious beliefs, lactose intolerance, vegetarianism or other related ideologies. For years, these groups of consumers have been able to substitute ice cream with frozen desserts containing soy protein as a substitute for milk protein, but never in the United …

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Antimicrobial Effects Of Copper And Brass Ions On The Growth Of Listeria Monocytogenes At Different Temperatures, Ph And Nutrients, Aisha Abushelaibi Jan 2005

Antimicrobial Effects Of Copper And Brass Ions On The Growth Of Listeria Monocytogenes At Different Temperatures, Ph And Nutrients, Aisha Abushelaibi

LSU Doctoral Dissertations

Listeria monocytogenes has been recognized as a human pathogen since 1929. This pathogen is found in many foods and listeriosis infections affect approximately 2,500 people in the United States each year, according to the Centers for Disease Control and Prevention. Of those infected with L. monocytogenes approximately 500 die as a result of the illness. Listeria monocytogenes is a bacterium, commonly found in water, soil, plant material, animals and human. Today, different methods are used by food manufacturers, to reduce the risk of Listeria monocytogenes, such as antimicrobial agents, heating, irradiation, and fermentation. The ability of the bacteria to grow …

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Effects Of A Primary Care Weight Management Intervention On Physical Activity In Low-Income African American Women, Gareth R. Dutton Jan 2005

Effects Of A Primary Care Weight Management Intervention On Physical Activity In Low-Income African American Women, Gareth R. Dutton

LSU Doctoral Dissertations

Although physical inactivity is associated with numerous medical conditions, most individuals do not engage in recommended levels of physical activity. Certain subgroups of the population are particularly inactive, including women, African Americans, and individuals with lower income and less education. While research suggests that interventions targeting physical activity can produce significant improvements in activity and cardiorespiratory fitness, there is less research examining physical activity interventions for these at-risk groups. In particular, there is a lack of research examining primary care physical activity interventions among low-income, African American women. The purpose of the current study was to examine the effects of …

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Effect Of Plant Residue And Water Management Practices On Soil Redox Chemistry, Methane Emission, And Rice Productivity, Manoch Kongchum Jan 2005

Effect Of Plant Residue And Water Management Practices On Soil Redox Chemistry, Methane Emission, And Rice Productivity, Manoch Kongchum

LSU Doctoral Dissertations

Approximately 5 % of rice growing area in Louisiana experience poor seedling or stand development attributed to anaerobic decomposition of excess plant residue, which create strongly reducing or toxic soil conditions. This study investigated plant residue and flooding regime effects on soil properties as related to rice growth and seedling development. Field experiments were conducted at several commercial farms in Southwest Louisiana (which have experienced problem with rice stand development) to relate observed restricted rice growth to soil redox chemistry and other chemical and physical properties. Field experiments were also conducted at the Crowley Rice Research Station in which various …

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Non-Medical Skills And Competencies Needed By Paraprofessional Caregivers, Martha L. Dix Jan 2005

Non-Medical Skills And Competencies Needed By Paraprofessional Caregivers, Martha L. Dix

LSU Doctoral Dissertations

This research effort was intended to identify the non-medical job skills projected to be needed by in-home paraprofessional caregivers of today and beyond as indicated by a Delphi panel of caregiving experts from public and private business areas as well as academia. Thirty Delphi participants were selected based on a qualifying questionnaire. Actual respondents, however, numbered 29 for Round 1, 24 for Round 2 and 23 for Round 3. Each round asked participants to respond to a survey as prompted by an open ended statement. Within the Round 1 process, participants indicated which non-medical skills from the prepared list they …

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Effects Of Ozonation And Addition Of Amino Acids On Properties Of Rice Starches, Hee-Joung An Jan 2005

Effects Of Ozonation And Addition Of Amino Acids On Properties Of Rice Starches, Hee-Joung An

LSU Doctoral Dissertations

In this study, the effects of ozonation and the addition of amino acids on rice starches were determined in terms of pasting properties by using rapid visco-analyzer, thermal characteristics by using differential scanning calorimeter, crystallinity by using x-ray diffraction, and resistant starch yield. Results from viscosity analysis showed that the addition of lysine (6%) to ozonated Sigma rice starch significantly reduced peak viscosity (PV), minimum viscosity (MV), final viscosity (FV), and setback (SBK) by 918, 1024, 1023, and 105 cP, respectively. Moreover, it decreased pasting time, resulting in the faster swelling upon heating and less rigid gel formation upon cooling. …

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Winter Bird Use Of The Chinese Tallow Tree In Louisiana, Michael John Baldwin Jan 2005

Winter Bird Use Of The Chinese Tallow Tree In Louisiana, Michael John Baldwin

LSU Master's Theses

Chinese tallow (Triadica sebifera) is a non-native invasive tree that is of particular concern in the Southeastern United States. It has become naturalized in a variety of habitats and can be found in monospecific stands. The use of tallow woodlands by overwintering birds is poorly documented. I compared use of tallow woodlands to use of bottomland hardwood forests by birds in the Mermentau River Basin, Louisiana. Species richness and evenness were greater in the bottomland hardwood sites. Three species were more abundant in tallow woodlands, six species were more common in bottomland hardwoods, and six species exhibited no difference between …

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A Radiographic Study Of The Impact Of Race And Sex On 1st And 2nd Molar Development, Suzanne Price Jan 2005

A Radiographic Study Of The Impact Of Race And Sex On 1st And 2nd Molar Development, Suzanne Price

LSU Master's Theses

The assessment of child development requires standards in order to compare an apparent physiologic age to an actual chronological age. In assessing chronological age of an individual, the use of multiple indicators is ideal and important in determining age at death. For individuals under the age of about 21 years, dental development is the most reliable indicator of age. Research aimed at understanding the variation in tooth formation due to race and sex will help to more accurately determine the age at death of remains of subadult individuals. This project examined the impact of race, sex, and time period on …

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Estimating The Postmortem Interval In Forensic Cases Through The Analysis Of Postmortem Deterioration Of Human Head Hair, Jamie Hughes Collier Jan 2005

Estimating The Postmortem Interval In Forensic Cases Through The Analysis Of Postmortem Deterioration Of Human Head Hair, Jamie Hughes Collier

LSU Master's Theses

Establishing the postmortem interval (PMI) of a decedent is one of the most important responsibilities a forensic investigator may face. An accurate PMI may aid in the identification of not only the victim, but also a suspect. Although many methods for determining time since death have been proposed, there is still a need to establish more reliable dating techniques. This study determines whether head hair from an individual deteriorates uniformly and if so, what association cuticle damage, fungal growth, and changes in proximal end morphology may have with PMI. Fifteen to 25 scalp hairs were pulled from nine cadavers located …

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Control Of Vibrio Vulnificus And Vibrio Parahaemolyticus In Oysters, Ligia Virginia Antonia Da Silva Jan 2005

Control Of Vibrio Vulnificus And Vibrio Parahaemolyticus In Oysters, Ligia Virginia Antonia Da Silva

LSU Doctoral Dissertations

Vibrio vulnificus and Vibrio parahaemolyticus are gram-negative halophilic bacteria found in the natural aquatic environment. V. vulnifcus and V. parahaemolyticus have been implicated in foodborne illness and can cause gastroenteritis that has been associated with consumption of raw or undercooked seafood. V. vulnificus can cause primary septicemia after its ingestion, and secondary septicemia through skin lesions in individuals with preexisting conditions such as elevated serum iron levels. Bacteriophages, viruses that invade and lyse bacteria, specific to V. vulnificus and V. parahaemolyticus are naturally found in seawater and oysters. Every summer, the oyster industry is threatened by recall of oysters due …

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Food Safety And Sanitation Issues In Day Care Centers, Elizabeth Katherine Smith Jan 2005

Food Safety And Sanitation Issues In Day Care Centers, Elizabeth Katherine Smith

LSU Doctoral Dissertations

Day care center reports from the Louisiana Board of Health Sanitarians were generated from day care centers participating in the Child and Adult Care Food Program (CACFP) in the state of Louisiana. The types of violations reported included temperature abuse, lack of handwashing supplies, spoiled food, incorrect dishwashing procedures, and physical plant problems. A survey was developed and mailed to all 50 state CACFP Directors requesting information on the sanitary violations reported by their state sanitarians for day care centers participating in CACFP. The violations cited by the individual state CACFP Directors were similar to those reported by the Louisiana …

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High Temperature Stress Responses Of Salvia Splendens And Viola X Wittrockiana, Seenivasan Natarajan Jan 2005

High Temperature Stress Responses Of Salvia Splendens And Viola X Wittrockiana, Seenivasan Natarajan

LSU Doctoral Dissertations

One of the greatest impediments affecting growth and development of bedding plants is high temperature stress. The deleterious effects of high temperature stress are the most pronounced during plug transplant and/or during the transition period from the nursery to the landscape. High temperature stress responses were investigated in Salvia splendens and Viola x wittrockiana to determine the morphological and physiological mechanism associated with the heat tolerance. Two genotypes for each species were used; a heat tolerant Vista and a heat sensitive Sizzler cultivar of salvia and Crystal Bowl Purple (CBP) a heat tolerant and Majestic Giant Red (MGR) a heat …

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Effectiveness Of The 4-H Advisory Committee Process As Perceived By 4-H Professionals And Advisory Committee Members, Mark Gerard Tassin Jan 2005

Effectiveness Of The 4-H Advisory Committee Process As Perceived By 4-H Professionals And Advisory Committee Members, Mark Gerard Tassin

LSU Doctoral Dissertations

The 4-H advisory process is crucial to program development in the 4-H youth development program in Louisiana. Parish 4-H advisory committees in each of the 64 parishes are involved in the addressing the needs of the clientele. The primary purpose of this study was to determine the effectiveness of the 4-H Advisory Process as perceived by 4-H professionals in Louisiana and primary stakeholder groups of the LSU Agricultural Center’s 4-H Program. Data for the study were obtained through surveys completed by 104 4-H youth development professionals and 142 parish 4-H advisory committee members. Additionally, six parish advisory committee members were …

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Effects Of Body Size On Goose Behavior: Lesser Snow Goose And Ross's Goose, Jon Einar Jonsson Jan 2005

Effects Of Body Size On Goose Behavior: Lesser Snow Goose And Ross's Goose, Jon Einar Jonsson

LSU Doctoral Dissertations

Body size is highly variable among geese, both at intra- and interspecific levels. Interspecific variation in several behaviors has been attributed to differences in body size in geese: incubation constancy, tendency to maintain family units, and time spent foraging. Body size has important physiological implications for birds, mostly because mass-specific metabolic rate is greater for birds of smaller mass. The Body-size Hypothesis predicts that smaller species deplete their energy reserves at relatively faster rates than do larger species. Hypotheses and conclusions concerning effects of body size on waterfowl behavior often are based on comparisons of species that confront different climates, …

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Effect Of Chromium Propionate And Fat Source On Growth, Carcass Traits, And Meat Quality In Swine And The Effect Of Chromium Propionate On Growth And Carcass Traits In Broilers, Ashunti Ria Jackson Jan 2005

Effect Of Chromium Propionate And Fat Source On Growth, Carcass Traits, And Meat Quality In Swine And The Effect Of Chromium Propionate On Growth And Carcass Traits In Broilers, Ashunti Ria Jackson

LSU Master's Theses

Three experiments were conducted to determine the effects of the chromium propionate (CrProp) in swine and poultry diets. Two broiler experiments, each utilizing 1,460 Ross X Ross broilers, were conducted to evaluate the effects of 0, 200, 400, or 800 ppb CrProp on growth performance and carcass traits in 0 to 42 and 0 to 49 d-old broilers. In Exp. 1, 400 ppb Cr decreased (P < 0.10) ADG and G:F in the grower phase, but mortality was reduced (P < 0.10) in broilers fed 200 ppb or 800 ppb Cr. In the finisher phase, G:F was increased (P < 0.10) in broilers fed all dietary levels of Cr, and mortality was reduced (P < 0.10) in broilers fed 200 and 400 ppb Cr. Chromium did not affect the overall growth data or carcass traits. In Exp. 2, CrProp did not affect growth performance. The results indicated that Cr as CrProp improved G:F in the later phases of growth and reduced mortality in Exp. 1 but not in Exp. 2. In Exp. 3, 108 crossbred Yorkshire gilts were used to examine the effects of 0 or 200 ppb CrProp on iodine value, fatty acid profile of fat, growth, carcass traits, and pork quality from gilts fed tallow or choice white grease (CWG). Chromium decreased (P < 0.03) 10th rib back fat and increased (P < 0.02) percent muscle. Gain:feed was increased (P < 0.003) and ADFI decreased by fat addition. Fat increased hot carcass weight (P < 0.07) and dressing percent (P < 0.02). Average back fat, 9th rib CL, and total loss were decreased (P = 0.02 to 0.04) by tallow. Belly width was increased (P < 0.08) by tallow, but belly bending on both the teatline and scribe side were increased (P = 0.004 to 0.01) by CWG. Iodine values on belly and loin samples were increased (P < 0.001) by CWG. Overall, Cr affected BF and percent muscle and the inclusion of tallow decreased (P = 0.03 to 0.09) belly and loin iodine value further than CWG or no added fat.

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Associating Molecular Markers With Phenotypes In Sweetpotatoes And Liriopogons Using Multivariate Statistical Modeling, Thomas Mwamburi Mcharo Jan 2005

Associating Molecular Markers With Phenotypes In Sweetpotatoes And Liriopogons Using Multivariate Statistical Modeling, Thomas Mwamburi Mcharo

LSU Doctoral Dissertations

Two horticultural crops, the ornamental liriopogon and the sweetpotato [Ipomoea batatas (L.) Lam.], were analyzed for morphological, quantitative and molecular marker variation using Amplified Fragment Length Polymorphism (AFLP) and various multivariate statistical techniques. Ornamental cultivars in genera Liriope and Ophiopogon were analyzed for relatedness using AFLP marker data and statistical clustering methods. Marker data did not substantiate the separation of these two genera. Greater than 95 % of the total genetic variability present was attributed to within group variation (P < 0.05). Trait-linked molecular markers were identified using Quantitative trait loci (QTL) analysis, logistic regression and discriminant analysis in the studies involving sweetpotato. The traits studied included dry matter content, virus disease resistance, root-knot nematode resistance, sugar content and -carotene content. Analysis of molecular variance found significant (P <0.001) differences between two phenotypic groups from unrelated genotypes for dry matter data. Using 14 markers selected through discriminant analysis the phenotypic grouping was validated with a zero error rate. Eighty-seven F1 sweetpotato genotypes from a cross of ‘Tanzania’ and ‘Wagabolige’ landraces were used to generate AFLP and random amplified polymorphic DNA (RAPD) marker profiles for this study. One AFLP marker linked to sweetpotato chlorotic stunt closterovirus resistance and one RAPD marker linked to sweetpotato feathery mottle virus resistance previously identified by traditional mapping strategies were selected plus new markers. Two diverse F1 populations of sweetpotato were used to identify and select markers suitable for identification of plants possessing a resistant reaction to southern root-knot nematode race 3 [Meloidogyne incognita (Kofoid and White) Chitwood]. Results for plant nematode resistance indicated a binomial distribution among the genotypes for population 1 and a normal distribution for population 2. A comparison of the power of discriminant analysis models for southern root-knot nematode resistance class prediction achieved 88% classification efficiencies. An F1 population of 73 clones consisting of parents and half-sibs was grouped into 2 phenotypic classes based on their sugar and ß-carotene content. Logistic regression and discriminant analysis selected meaningful markers that had significant associations with each of the traits. These results validated discriminant analysis and logistic regression as meaningful trait-linked marker selection methods.

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Hydrophobic Guar Gum Derivatives Prepared By Controlled Grafting Processes For Hydraulic Facturing Applications, Ahmad Bahamdan Jan 2005

Hydrophobic Guar Gum Derivatives Prepared By Controlled Grafting Processes For Hydraulic Facturing Applications, Ahmad Bahamdan

LSU Doctoral Dissertations

The synthesis of new water soluble guar gum derivatives is described. Introduction of polyalkoxyalkyleneamide grafts to guar gum or hydroxyopropyl guar was achieved in a three step process: carboxymethylation with sodium chloroacetate, esterification with dimethyl sulfate and amidation with a series of polyalkoxyalkylene-amines. The process steps were followed using infrared spectroscopy; the grafted guar derivatives were characterized using FT-IR and 1H NMR. A series of hydroxypropyl guar derivatives with degrees of carboxymethylations ranging from 0.15-0.25 were modified with polyalkoxyalkyleneamines with molecular weights ranging from 300-3000. The ratio of oxypropylene to oxoethylene units in the polyalkoxyalkyleneamines was varied from 9/1 …

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The Effect Of Dietary Phosphorus Level And Phytase Supplementation On Growth Performance, Bone Breaking Strength, And Phosphorus Excretion In Broilers, Syrena Powell Jan 2005

The Effect Of Dietary Phosphorus Level And Phytase Supplementation On Growth Performance, Bone Breaking Strength, And Phosphorus Excretion In Broilers, Syrena Powell

LSU Master's Theses

This research was conducted to determine the effects of feeding different P levels with and without phytase supplementation on broiler growth performance, bone breaking strength (BBS), and P excretion. An experiment with 4 trials was conducted with 7,840 Ross x Ross straight run broilers. For each trial, 1,960 broilers were allotted on d 0 to 4 treatments with 7 replications per treatment with 70 broilers per replication. The broilers were fed a 4 period feeding program consisting of starter (0 to 14 d), grower (14 to 32 d), finisher (32 to 41 d), and withdrawal (41 to 50 d) periods. …

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Sacred Trust: The Voluntary Removal And Reburial Of Human Remains From A Historic Cemetery In Louisiana, Christian Williamson Jan 2005

Sacred Trust: The Voluntary Removal And Reburial Of Human Remains From A Historic Cemetery In Louisiana, Christian Williamson

LSU Master's Theses

Members of the Randolph family, a prominent plantation family that has lived in Louisiana since the late eighteenth century, contacted a team of anthropologists from Louisiana State University to help recover thirteen individuals from St. Mary’s Cemetery in Bayou Goula, Louisiana. The cemetery had been abandoned since 1970, its graves overgrown with weeds and desecrated by vandals. Of the thirteen individuals recovered, three sets of remains did not have associated grave markers. These three were taken back to the lab and analyzed using standard forensic procedures. Documentary research on the history of the cemetery, the once associated church, and the …

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L-Glutamine Supplementation: Effects On Recovery From Exercise, Tavis Joseph Piattoly Jan 2005

L-Glutamine Supplementation: Effects On Recovery From Exercise, Tavis Joseph Piattoly

LSU Master's Theses

Clinical evidence supports the use for exogenous glutamine in the maintenance of muscle mass and immune system function in critically ill patients. Relatively little research has examined the benefits of glutamine for athletes engaged in heavy exercise training, despite a possible link between overtraining and glutamine. PURPOSE: To examine the influence of Glutamine on time to exhaustion and power after a prolonged bout of exercise. METHODS: Twelve men (Age: 19 to 30y) involved in cycle training were asked to participate in the study. All participants performed a Symptom-Limited Graded Exercise Test (SL-GXT) using the Astrand Cycle protocol. On a subsequent …

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Adoption In New Orleans: What Agencies Are Doing To Promote It, Emily Barbara Rivers Jan 2005

Adoption In New Orleans: What Agencies Are Doing To Promote It, Emily Barbara Rivers

LSU Master's Theses

Unplanned and unwanted pregnancies are a national concern in the United States. In addition, many people exist who would like to become parents, but cannot or do not reproduce biologically. While adoption could offer a solution to this problem, the actual number of adoptions that take place is very small. This study examined what adoption agencies in the New Orleans area are doing to promote themselves to women with unwanted pregnancies. In-depth interviews were conducted with five adoption agencies. Three of the five agencies reported using various methods of targeting women with unwanted pregnancies. These methods included public posters, flyers …

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Effect Of Phosphorus And Potassium Fertility On Fruit Quality And Growth Of Tabasco Pepper (Capsicum Frutescens) In Hydroponic Culture, Manuel Estuardo Aldana Jan 2005

Effect Of Phosphorus And Potassium Fertility On Fruit Quality And Growth Of Tabasco Pepper (Capsicum Frutescens) In Hydroponic Culture, Manuel Estuardo Aldana

LSU Master's Theses

Effects of P and K fertilization on Tabasco plant growth and fruit quality were evaluated in a preliminary experiment conducted in fall 2002; 4 levels of P (0.25, 1.0, 1.75, and 2.5 mM) and 4 levels of K (0.75, 1.75, 2.75, and 3.75 mM) in hydroponic culture with a factorial randomized design. The main growth experiment was conducted in spring/summer growing period of 2003. This experiment consisted of 8 treatments; 4 levels of P (P1 0.25, P2 1.25, P3 2.5, and P4 3.75 mM) and 4 levels of K (K1 0.25, K2 1.25, K3 2.5, and K4 3.75 mM). The …

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Using The Biodatamation Strategy To Learn Introductory College Biology: Value-Added Effects On Selected Students' Conceptual Understanding And Conceptual Integration Of The Processes Of Photosynthesis And Celluar Respiration, Jewel Jurovich Reuter Jan 2005

Using The Biodatamation Strategy To Learn Introductory College Biology: Value-Added Effects On Selected Students' Conceptual Understanding And Conceptual Integration Of The Processes Of Photosynthesis And Celluar Respiration, Jewel Jurovich Reuter

LSU Doctoral Dissertations

The purpose of this exploratory research was to study how students learn photosynthesis and cellular respiration and to determine the value added to the student's learning by each of the three technology-scaffolded learning strategy components (animated concept presentations and WebQuest-style activities, data collection, and student-constructed animations) of the BioDatamation™ (BDM) Program. BDM learning strategies utilized the Theory of Interacting Visual Fields™ (TIVF) (Reuter & Wandersee, 2002a, 2002b; 2003a, 2003b) which holds that meaningful knowledge is hierarchically constructed using the past, present, and future visual fields, with visual metacognitive components that are derived from the principles of Visual Behavior (Jones,1995), Human …

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In Vitro And In Vivo Anti-Angiogenic Activities Of Milk Sphingolipids, Rishipal Rastrapal Bansode Jan 2005

In Vitro And In Vivo Anti-Angiogenic Activities Of Milk Sphingolipids, Rishipal Rastrapal Bansode

LSU Doctoral Dissertations

Anti-angiogenic therapies aimed at halting new blood vessel formation are now being extensively studied as inhibitors of excessive angiogenesis. Conversely, compounds with ability to stimulate angiogenesis are being considered as a therapeutic approach for insufficient angiogenesis. Food-borne bioactive compounds such as genistein, resveratrol, curcumin, the Bowman-Birk inhibitor, and catechins are being potentially established as good candidates for angioprevention. The aim of our study was to determine the anti-or pro-angiogenic activity of milk-based glycosphingolipids such as C6-ceramide (Cer), Sphingomyelin (SPM) and Glucosylceramide (GluCer), in vitro, using breast cancer (MCF-7), colon cancer (Caco-2) and prostate cancer (DU-145) cell-lines, on angiogenic factors such …

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Comparative Studies Of Sperm Cryopreservation Of Diploid And Tetraploid Pacific Oysters, Qiaoxiang Dong Jan 2005

Comparative Studies Of Sperm Cryopreservation Of Diploid And Tetraploid Pacific Oysters, Qiaoxiang Dong

LSU Doctoral Dissertations

This dissertation addressed comparative studies of sperm cryopreservation of diploid and tetraploid Pacific oysters, Crassostrea gigas, with an emphasis on the development of standardized and optimized protocols. This includes comparative ultrastructural differences between sperm from diploid and tetraploid oysters, methods for the rapid estimation of sperm concentration, optimization of cryopreservation, and evaluation of the mechanisms for sperm agglutination (formation of clumps or elongated "noodles") in thawed samples. Currently, cryopreserved sperm has not been commercialized in any aquatic species, and standardization and optimization could greatly benefit the potential commercialization of its use. In oysters specifically, cryopreserved sperm from tetraploids would facilitate …

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Marie Darrieussecq Et Ses Truismes, Carla Bota Jan 2005

Marie Darrieussecq Et Ses Truismes, Carla Bota

LSU Master's Theses

The purpose of this thesis is to analyze the relationship between language and themes in Marie Darrieussecq's novel Truismes. Having as its core the theme of metamorphosis, Truismes tells the story of a young woman who after passing through a multitude of experiences transforms into a pig. The character's journey through the metamorphosis is marked by excesses. The excess manifests itself at all levels: in the physical and mental transformation of the female character, in the description of the secondary characters, in the composition of the environment that sustains the narration, and ultimately in the language. By using Julia Kristeva's …

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Exogenous Enzymes And Organic Acids In The Nutrition Of Broiler Chicks: Effects On Growth Performance And In Vitro And In Vivo Digestion, Tuoying Ao Jan 2005

Exogenous Enzymes And Organic Acids In The Nutrition Of Broiler Chicks: Effects On Growth Performance And In Vitro And In Vivo Digestion, Tuoying Ao

University of Kentucky Doctoral Dissertations

Studies were conducted to investigate the interactive effects of exogenous enzymes andorganic acids on in vitro and in vivo nutrient digestion and growth performance of broiler chicks.In Study 1, five exogenous enzyme products including ??-glucanase, xylanase, amylase, ??-galactosidase and protease, were assayed in triplicate at their optimum pH levels and at pH levelsof 3.0, 6.0, 6.5, 7.0 and 7.5, which were used to simulate pH levels found in the gizzard, the diet,the crop, and the proximal and distal parts of small intestine, respectively. The pH gradient wasobtained by dissolving the enzymes in different buffers. Results suggested that the pH levelscommonly …

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