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Full-Text Articles in Life Sciences

Conferred Immunity Against The H1n1 Type A Influenza Virus In Madin-Darby Canine Kidney Cells Via Cecropin B Transfection Therapy., Tomasz P. Stryjewski Nov 2007

Conferred Immunity Against The H1n1 Type A Influenza Virus In Madin-Darby Canine Kidney Cells Via Cecropin B Transfection Therapy., Tomasz P. Stryjewski

Honors Theses

No abstract provided.


Louisiana Agriculture Fall, 2007, Lsu Agcenter Oct 2007

Louisiana Agriculture Fall, 2007, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Louisiana Agriculture Summer, 2007, Lsu Agcenter Jul 2007

Louisiana Agriculture Summer, 2007, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Analysis Of The Tfc6 Promoter In Saccharomyces Cerevisiae: Transcriptional Regulation Through Tf Iiic Binding At Etc6, Daniel Edwards May 2007

Analysis Of The Tfc6 Promoter In Saccharomyces Cerevisiae: Transcriptional Regulation Through Tf Iiic Binding At Etc6, Daniel Edwards

Honors Theses

No abstract provided.


Bacteria Homolog Of Frataxin, Cyay, And Its Role In The Interaction With The Isc System, Simon Yeung May 2007

Bacteria Homolog Of Frataxin, Cyay, And Its Role In The Interaction With The Isc System, Simon Yeung

Honors Theses

No abstract provided.


A Checklist Of The Amphibians And Reptiles Of México, Ernest A. Liner May 2007

A Checklist Of The Amphibians And Reptiles Of México, Ernest A. Liner

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Video Game Addiction: Truth Or Fiction, Lyles Thibodeaux-Harmony May 2007

Video Game Addiction: Truth Or Fiction, Lyles Thibodeaux-Harmony

Honors Theses

No abstract provided.


Viscosity And Gravity Effects On The Kinetics Of E. Coli Alkaline Phosphatase, Sujatha Muralidharan May 2007

Viscosity And Gravity Effects On The Kinetics Of E. Coli Alkaline Phosphatase, Sujatha Muralidharan

Honors Theses

No abstract provided.


A Sine-Based Dichotomous Key For Primate Identification, Jacquelyn W. Zimmerman Apr 2007

A Sine-Based Dichotomous Key For Primate Identification, Jacquelyn W. Zimmerman

Honors Theses

No abstract provided.


Louisiana Agriculture Spring, 2007, Lsu Agcenter Apr 2007

Louisiana Agriculture Spring, 2007, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


The Purification Of Helicobacter Pylori Urease Β Subunit Protein And Dna For Vaccine Production, Alyson Moll Apr 2007

The Purification Of Helicobacter Pylori Urease Β Subunit Protein And Dna For Vaccine Production, Alyson Moll

Honors Theses

No abstract provided.


Louisiana Agriculture Winter, 2007, Lsu Agcenter Jan 2007

Louisiana Agriculture Winter, 2007, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Analysis Of The Impact Of Fish Imports On Domestic Crawfish Prices And Economic Welfare Using Inverse Demand Systems, Young-Jae Lee Jan 2007

Analysis Of The Impact Of Fish Imports On Domestic Crawfish Prices And Economic Welfare Using Inverse Demand Systems, Young-Jae Lee

LSU Doctoral Dissertations

This study is mainly intended to determine quantitatively the economic effects of crawfish imports on the domestic crawfish industry. Inverse demand systems are used to estimate the price and scale flexibility as an indicator for the effects of imports on crawfish domestic price. A variety of algebraic forms for empirical consumer allocation models have been developed. Economic theory, however, does not provide the necessary fundamental criteria to choose ex ante among the alternative specifications. Bartern (1993) and Brown, Lee, and Seale (1995) examined a family of inverse demand systems, showing that the integrated demand system, in its own right, has …


Analysis Of Trade On El Salvador Post Dollarization, Jorge Raul Rivera Jan 2007

Analysis Of Trade On El Salvador Post Dollarization, Jorge Raul Rivera

LSU Master's Theses

Dollarization has been suggested as an option for emerging economies. This policy might, among other goals, promote trade between a country adopting the dollar and the United States. Recent research suggests that adopting a common currency increases bilateral trade. Those findings have been widely critiqued for the lack of consistency over different currencies specially the case of dollarization. This thesis is primarily concerned with the impact of dollarization in El Salvador regarding bilateral trade flows. Utilizing the framework of the Gravity Model, bilateral trade flows for 13 trading partners of El Salvador were examined. This study found that dollarization has …


An Analysis Of The Processor Preferences For The Adoption Of Potential Crawfish Peeling Machines, Darius J. Lewis Jan 2007

An Analysis Of The Processor Preferences For The Adoption Of Potential Crawfish Peeling Machines, Darius J. Lewis

LSU Master's Theses

Over the past decade, the peeling segment of the Louisiana crawfish industry has faced the challenge of remaining competitive in an increasingly global market. Since the mid-1990’s, there has been escalated discussion among Louisiana crawfish processors on the need for a crawfish peeling machine. The International Trade Commission determined that the U.S. crawfish industry had been “materially injured” by the imported tailmeat and ruled China was, in fact, dumping crawfish in the U.S. by selling below fair market value in the host country. The development of a suitable crawfish peeling machine could potentially increase production and lower cost of production, …


Assessing Ethnorelative Pedagogical Preparedness In Pete Programs, Joe W. Burden Jan 2007

Assessing Ethnorelative Pedagogical Preparedness In Pete Programs, Joe W. Burden

LSU Doctoral Dissertations

Previously, multicultural education literature has highlighted the increase of ethnically diverse students' growth in American public K-12 schools (Articles & McClafferty, 1998; Ladson-Billings, 1994). On the other hand, the literature reveals that many teachers are failing to appropriately exhibit culturally relevant pedagogical competence to accommodate the growth of students of color in American schools (NCDTF, 2004). Oftentimes, this contributes to the development of pre-service teachers that lack culturally relevant pedagogical preparation to teach students of color in American K-12 schools (Burden, Hodge, O'Bryant & Harrison, 2004; Ambrosio, Seguin, & Hogan, 2001). Thus, this study sought out to better understand how …


Equine Obesity-Related Hyperleptinemia, Nan Killen Huff Jan 2007

Equine Obesity-Related Hyperleptinemia, Nan Killen Huff

LSU Doctoral Dissertations

Plasma leptin concentrations in obese adult horses have been shown to vary widely, and horses tend to fit into two groups: low leptin (<10 ng/mL) and hyperleptinemic (10 to 50 ng/mL). Observations over time revealed that the hyperleptinemic condition was consistent, possibly indicating a relatively permanent underlying cause. Based on these observations, three experimental approaches were used to further study equine obesity-related hyperleptinemia. The first experiment determined the prevalence of hyperleptinemia among postpartum, lactating mares, evaluated its consequence on their re-breeding success, and investigated correlations between leptin levels in lactating and non-lactating mares. Postpartum mares (n = 198) and non-foaling mares (n = 31) were categorized based on their leptin status: normoleptinemic or hyperleptinemic. Leptin in the lactating mares averaged 4.8 ng/mL, and 11 of the 198 (13%) displayed hyperleptinemia. Leptin in the non-lactating mares averaged 7.5 ng/mL, with 9 mares (29%) displaying hyperleptinemia. Of the 198 lactating mares bred, 81% became pregnant; there was no effect of leptin status on re-breeding success. To study one possible cause for hyperleptinemia in well-fed horses, a second experiment explored polymorphism(s) within exon 2 of the equine leptin gene. The DNA from five hyperleptinemic and five normal mares of high body condition was used to analyze exon 2 of the leptin gene for polymorphisms. Based on the 10 mares tested, there was no polymorphism in exon 2 of the equine leptin gene; therefore, polymorphism is not a likely explanation for the high vs. low leptin difference. The third experiment explored the possible effects of hyperleptinemia on the endocrine and immune systems. Endotoxin was given to mares and geldings to investigate the role and/or regulation of leptin in the pro-inflammatory cytokine response. Of the endpoints measured, only platelet count differed between normal and hyperleptinemic horses. Endotoxin infusion caused the expected pro-inflammatory cytokine and endocrine responses, but leptin status was not a significant factor for any endpoint. It is concluded that hyperleptinemia in mares is not associated with polymorphism in exon 2 of the leptin gene, does not affect re-breeding rates of foaling mares, and does not alter the endotoxin-induced responses of the endocrine and immune systems.


Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez Jan 2007

Chromosomal Stability And Epigenetic Modifications Of Fibroblast Cells Used For Nuclear Transfer, Angelica Maria Giraldo Gomez

LSU Doctoral Dissertations

Investigations into the importance of the nuclear integrity of the donor cell prior to nuclear transfer (NT) are limited. In Experiment 1, the proliferative characteristics, chromosomal stability and level of histone phosphorylation in cell lines established by explants and enzymatic dissociation at different population doublings (PDs) were investigated. The cells divided at a constant rate and cell cycle length increased only at the end of the proliferative stage. The level of aneuploidies was high and remained elevated throughout the study independent of the technique used to establish the primary culture. High levels of multinucleated cells and abnormal spindle configurations were …


Spatial Econometric Analysis Of Agglomeration Economies Associated With The Geographical Distribution Of The U.S. Biotech Industry, Pramod Reddy Sambidi Jan 2007

Spatial Econometric Analysis Of Agglomeration Economies Associated With The Geographical Distribution Of The U.S. Biotech Industry, Pramod Reddy Sambidi

LSU Doctoral Dissertations

This dissertation analyzed spatial agglomeration economies associated with the geographical distribution of the U.S. biotech industry. Three location issues associated with the biotech industry were addressed in the study. The first study utilized a Bayesian spatial tobit model and examined the overall and regional differences in factors affecting the location of the U.S. biotech industry. The second study examined the inter- and intra-industry spatial association of biotech related research and development (R&D) and testing facilities across all contiguous U.S. counties employing a Spatial Two-Stage Least Squares model. Finally, the interdependence between different subsectors of the U.S. biotech industry was analyzed …


Intracellular Lipids In Bos Indicus And Box Taurus Oocytes, Casey Bryant Ballard Jan 2007

Intracellular Lipids In Bos Indicus And Box Taurus Oocytes, Casey Bryant Ballard

LSU Master's Theses

It has been proposed that Bos indicus when compared with Bos taurus embryos are more sensitive to cryopreservation procedures due to higher intracellular lipid content of the embryos. With cyropreservation of Bos indicus embryos increasing for export, it is essential to improve the viability of these cryopreserved embryos. In Experiment I, M-II oocytes from mice, pigs and cows were subjected to two different procedures to evaluate lipid content. The lipid content present in pig oocytes was significantly (P<0.05) higher when compared with mouse and cow oocytes. Pig oocytes had a lower settling point in the sucrose buoyant density gradient and higher Nile Red units, which indicated higher lipids present in the oocytes. In Experiment II, it was determined that M-II oocytes aspirated from superstimulated Brahman donors were significantly higher (P<0.05) in lipid content compared with English breed donors. The lipid content present in Brahman oocytes was higher when compared with English breeds when tested with a sucrose buoyant density gradient and Nile Red staining. In addition, donor females with higher body condition scores were significantly (P<0.05) higher in oocyte lipid content when compared with donor females of lower body condition scores. Furthermore, animal body condition scores, cholesterol and triglyceride levels prior to oocyte aspiration may be indicators of intracellular lipids in the oocytes and embryos. To our knowledge, this is the first report that evaluated intracellular lipid content of M-II oocytes of different beef breed types using a sucrose buoyant density gradient and Nile Red staining.


Record-Keeping Systems Adoption By Louisiana Dairy Farmers, Elisabeth Grisham Jan 2007

Record-Keeping Systems Adoption By Louisiana Dairy Farmers, Elisabeth Grisham

LSU Master's Theses

Fifty Louisiana dairy farmers were interviewed to gather production amounts, costs of production, management techniques, technologies adopted, and demographic information. These data were used to analyze what record-keeping systems the farmers were adopting and to what extent the systems were being used. Logit, ordered probit, negative binomial regression, OLS regression, and double hurdle models were used to determine adoption and intensity. In this study, age was found to decrease the probability that a farmer would believe their computer was not at all useful and also of limited usefulness, while increasing the probability that a farmer would believe the computer was …


Modeling The Eu-Us Cereal Trade - The Post 'Agenda 2000' Analysis, Sachin Chintawar Jan 2007

Modeling The Eu-Us Cereal Trade - The Post 'Agenda 2000' Analysis, Sachin Chintawar

LSU Master's Theses

Significant changes in attitudes toward farm policy and trade have occurred within the European Union and the United States in the past decade. Trade negotiations under the General Agreement on Tariff and Trade (GATT) specifically the Agreement on Agriculture (AoA) and later under the Doha Round of the World Trade Organization (WTO) have bought about considerable changes in the market structure in the cereals trade. Bilateral trade has further been impacted by the cessation of concession treaties like the Blair House Accord that expired at the end of the 2004 marketing year (WTO). Domestic budget pressures in the United States …


Psychological Correlates Of Exercise Behavior Among Adolescents, Kevin C. Paul Jan 2007

Psychological Correlates Of Exercise Behavior Among Adolescents, Kevin C. Paul

LSU Master's Theses

According to the 2003 Youth Risk Behavior Surveillance Survey, 33% of youth in grades 9-12 participated in an insufficient amount of vigorous and moderate physical activity (PA), and 11% reported no vigorous and moderate PA. Although researchers have examined the psychological correlates of exercise behavior among youth, limited research investigating moderators of the theories of reasoned action (TRA; Ajzen & Fishbein, 1980) and planned behavior (TPB; Ajzen, 1985) in this population exists. Therefore, the main purpose of this study was to examine socioeconomic status (SES) as a moderator of the psychological correlates of exercise intention and behavior using the TRA/TPB …


Liability, Institutions, And Determinants Of Landowner Access Policies For Fee-Based Recreation On Private Lands, James Emery Henderson Jan 2007

Liability, Institutions, And Determinants Of Landowner Access Policies For Fee-Based Recreation On Private Lands, James Emery Henderson

LSU Doctoral Dissertations

Landowners in the Lower Mississippi Valley or Delta may be willing to consider alternative land uses for some acreage, particularly for marginal agricultural lands. Recreational hunting, fishing, and wildlife watching opportunities on private land for public use may be a possible way to provide income to landowners and restore marginal lands as a contributor to the local economy. Previous studies have identified that landowners often chose not to engage in recreational leasing due to liability concerns. Thus, an institutional change that reduces liability risk to landowners may increase the amount of private land available for public recreation and reduce transaction …


Quantification Of Muscle Fatigue In Cerebal Palsy And Its Relationship To Impairments And Function, Noelle G. Moreau Jan 2007

Quantification Of Muscle Fatigue In Cerebal Palsy And Its Relationship To Impairments And Function, Noelle G. Moreau

LSU Doctoral Dissertations

Three experiments were designed to explore the measurement of muscle fatigue in people with cerebral palsy (CP). The four aims were to 1) develop a feasible and reliable isokinetic protocol to assess muscle fatigue of the knee flexors and extensors in this population, 2) determine if muscle fatigue of the knee flexors and extensors in people with CP differs from subjects without a motor disorder, 3) determine whether muscle fatigue is related to functional measures of activity and participation, and 4) investigate possible contributing factors of muscle fatigue. Results show that muscle fatigue can be reliably assessed through an isokinetic …


Cold Adaption Behaviors Of Vibrio Vulnificus And Vibio Parahaemolyticus In Oysters, Chiung-Ta Wu Jan 2007

Cold Adaption Behaviors Of Vibrio Vulnificus And Vibio Parahaemolyticus In Oysters, Chiung-Ta Wu

LSU Master's Theses

Vibrio vulnificus is an estuarine bacterium that can cause primary septicemia as well as other serious wound infections. Vibrio parahaemolyticus is a gram-negative, halophilic bacterium that may cause gastroenteritis, diarrhea, headache, vomiting, nausea, abdominal cramps and is the leading cause of gastroenteritis in United States. Consumption of raw oysters is believed to closely relate with infection with Vibrio vulnificus and Vibrio parahaemolyticus. All strains of V. parahaemolyticus produce tlh genes and the major virulence factors of V.parahaemolyticus are the tdh and trh genes. This study was conducted to determine if Vibrio vulnificus and Vibrio parahaemolyticus clinical and environmental strains display …


Cryopreservation Of White-Tail Deer Epididymal Sperm For Artificial Insemination, Jesse Ray Saenz Jan 2007

Cryopreservation Of White-Tail Deer Epididymal Sperm For Artificial Insemination, Jesse Ray Saenz

LSU Master's Theses

The ability to cryopreserve epididymal sperm from mature postmortem bucks has long been of interest to both wildlife conservationists and deer ranchers. Increased understanding of the cryobiology of epididymal sperm from a non domestic species, such as White-tail deer, could aid in development of future protocols to assist in the preservation of endangered species. In Experiment I, results showed that after cooling postmortem bull testes for 22 hours, no significant difference was noted between sperm parameters of epididymal sperm collected at room temperature or at a cool enviorment. In Experiment II, it was shown that White-tail deer sperm could be …


Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison Jan 2007

Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison

LSU Doctoral Dissertations

The general objective of this dissertation was to investigate physical function in osteoarthritis (OA) and total knee replacement (TKA) patients. First, a validation study was performed to evaluate the validity of the Continuous Scale Physical Functional Performance (CS-PFP10) test in knee OA awaiting TKA. The CS-PFP10 scores were compared to the Western Ontario and McMaster Universities OA Index (WOMAC), The Knee Society’s Clinical Rating System (KSS), and the Short Form 36-item health survey (SF-36) physical function scores. It was hypothesized that at least moderate associations between the CS-PFP10 test scores and the WOMAC, KSS, and SF-36 scores in TKA candidates …


The Influence Of Morningglory (Ipomoea Lacunosa), Hemp Sesbania (Sesbania Exaltata), And Johnsongrass (Sorghum Halepense) On Reproduction Of Rotylenchulus Reniformis On Cotton Gossypium Hirsutum L. And Soybean Glycine Max. (L.) Merrill, Michael John Pontif Jan 2007

The Influence Of Morningglory (Ipomoea Lacunosa), Hemp Sesbania (Sesbania Exaltata), And Johnsongrass (Sorghum Halepense) On Reproduction Of Rotylenchulus Reniformis On Cotton Gossypium Hirsutum L. And Soybean Glycine Max. (L.) Merrill, Michael John Pontif

LSU Doctoral Dissertations

Microplot studies were conducted to evaluate the effects of cotton (LA. 887), soybean (Pioneer 96B21), and three endemic weed species, pitted morningglory (Ipomoea lacunosa), hemp sesbania (Sesbania exaltata), and johnsongrass (Sorghum halepense), on reproduction of the reniform nematode, (Rotylenchulus reniformis). Over two microplot trials the co-culture of cotton with any of the three weeds suppressed numbers of reniform nematode juveniles in soil. When grown singly, reniform nematode reproductive values after 60 days on cotton averaged 69.0, while those for morningglory, hemp sesbania, and johnsongrass averaged 42.0, 23.5, and 18.0, respectively. Reproductive values for cotton co-cultured with morningglory averaged 38.7. Those …


Effect Of Culture Conditions On Gene Expression In Manipulated Bovine Embryos, Megan Nicole Purpera Jan 2007

Effect Of Culture Conditions On Gene Expression In Manipulated Bovine Embryos, Megan Nicole Purpera

LSU Master's Theses

Numerous studies have reported aberrant gene expression levels attributed to suboptimal in vitro culture conditions presented to embryos. Since the culture environment is a common aspect of both in vitro production (IVP) and nuclear transfer (NT), research focusing on the in vitro culture system will have the potential to improve both techniques. This study investigated the effects of different culture systems and protein sources on the developmental competence of IVP embryos measured by cleavage and blastocyst rates, cell number, and relative abundance of oct-4, nanog, connexin 43, and GLUT-1 transcripts when compared to in vivo embryos. Experiment 1 compared IVP …