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Articles 1 - 30 of 48
Full-Text Articles in Life Sciences
Louisiana Agriculture Fall, 2008, Lsu Agcenter
Louisiana Agriculture Fall, 2008, Lsu Agcenter
Louisiana Agriculture
No abstract provided.
Louisiana Agriculture Summer, 2008, Lsu Agcenter
Louisiana Agriculture Summer, 2008, Lsu Agcenter
Louisiana Agriculture
No abstract provided.
Xylose-Fermenting Yeast Species Found In The Wood Of Southeast Louisiana, Claire Reuter
Xylose-Fermenting Yeast Species Found In The Wood Of Southeast Louisiana, Claire Reuter
Honors Theses
No abstract provided.
Characterization Of A Non-Cytoplasmically Localized Dps Protein From Deinococcus Radiodurans, Brian Reon
Characterization Of A Non-Cytoplasmically Localized Dps Protein From Deinococcus Radiodurans, Brian Reon
Honors Theses
No abstract provided.
Toxic Gene Expression In Escherichia Coli Using Trpl As A Repressor, Ian Primm
Toxic Gene Expression In Escherichia Coli Using Trpl As A Repressor, Ian Primm
Honors Theses
No abstract provided.
Feasibility And Desirability Of Ethanol Production In The State Of Louisiana, John David Barreca
Feasibility And Desirability Of Ethanol Production In The State Of Louisiana, John David Barreca
Honors Theses
No abstract provided.
Responses Of The Sea Catfish, Ariopsis Felis, To Chemical Defenses From The Sea Hare, Aplysia Californica, Sheybani Arman
Responses Of The Sea Catfish, Ariopsis Felis, To Chemical Defenses From The Sea Hare, Aplysia Californica, Sheybani Arman
Honors Theses
No abstract provided.
Polyphasic Taxonomy Of A Group Of Globally Dispersed, Desiccation-Resistant Strains Of The Microvirga/Balneimonas Cluster, Bradley Tolar
Polyphasic Taxonomy Of A Group Of Globally Dispersed, Desiccation-Resistant Strains Of The Microvirga/Balneimonas Cluster, Bradley Tolar
Honors Theses
No abstract provided.
Louisiana Agriculture Spring, 2008, Lsu Agcenter
Louisiana Agriculture Spring, 2008, Lsu Agcenter
Louisiana Agriculture
No abstract provided.
Hatchability Of End Of Lay Egg Production Broiler Breeder Eggs As Influenced By Prestorage Warming, Kyle Homan
Hatchability Of End Of Lay Egg Production Broiler Breeder Eggs As Influenced By Prestorage Warming, Kyle Homan
Honors Theses
No abstract provided.
The Effects Of Epidermal Growth Factor And Basic Fibroblast Growth Factor On Cryopreserved Human Adipose Derived Stem Cells In Culture: Proliferation, Adipogenesis, And Osteogenesis, Teddi Leigh Hebert
Honors Theses
No abstract provided.
Modeling Electric Fields In Microfluidic Devices, Micah Fincher
Modeling Electric Fields In Microfluidic Devices, Micah Fincher
Honors Theses
No abstract provided.
Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra
Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra
LSU Master's Theses
The rice stink bug (Oebalus pugnax) is the major pest of late-season rice in Louisiana. Prior studies indicate that large populations of mosquitoes are often present in rice fields during the time that rice fields are infested with rice stink bugs. Lambda-cyhalothrin (Karate®) is widely used to control rice stink bugs. The purpose of this study was to determine if application of the insecticide Karate® at a rate of 0.033 kg/ha, for rice stink bug control had an effect on the population of mosquitoes in rice fields. This effect was assessed by monitoring natural populations of mosquitoes before and after …
Louisiana Agriculture Winter, 2009, Lsu Agcenter
Louisiana Agriculture Winter, 2009, Lsu Agcenter
Louisiana Agriculture
No abstract provided.
Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt
Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt
LSU Master's Theses
Unstressed and stressed quail hens selected for exaggerated (HS, high stress) rather than reduced (LS, low stress) plasma corticosterone (B) response to brief restraint deposit more B into their eggs than do their LS hen counterparts. HS hens implanted with B also show reduced egg lay when compared to LS- and HS-control and LS-B-implanted hens. Herein, the effects of stress line on length of egg incubation (LEI) and chick body weight at emergence (BWTE) (Exp. 1) and the interactive influences of line with maternal B-treatment (sub-Q control, CON-, or B-implants) on LEI (Exp. 2) and on egg fertility (FERT), total …
Systematically Increasing Contextual Interference Is Beneficial For Learning Novel Motor Skills, Jared Marak Porter
Systematically Increasing Contextual Interference Is Beneficial For Learning Novel Motor Skills, Jared Marak Porter
LSU Doctoral Dissertations
Traditionally, contextual interference (CI) has been investigated by the use of extreme low and high levels of CI (blocked and random practice schedules); with results generally suggesting that higher rather than lower amounts of CI facilitated motor skill learning (Magill & Hall, 1990). To better understand the CI effect, two experiments were conducted investigating an alternative form of practice schedule. Practice using this alternative schedule provided novices experiences with systematic increases in CI, which were compared to traditional blocked and random scheduling. Experiment 1 tested the hypothesis that practicing variations of the same tasks with systematic increases in CI would …
Survival, Growth, And Behavior Of Helicoverpa Zea (Boddie) And Heliothis Virescens (F.) (Lepidoptera: Noctuidae) On Genetically Engineered Cotton Expressing The Vip3a Insecticidal Protein, Padma Latha Bommireddy
Survival, Growth, And Behavior Of Helicoverpa Zea (Boddie) And Heliothis Virescens (F.) (Lepidoptera: Noctuidae) On Genetically Engineered Cotton Expressing The Vip3a Insecticidal Protein, Padma Latha Bommireddy
LSU Doctoral Dissertations
Larval behavior, survivorship, and injury potential of Helicoverpa zea (Boddie), and tobacco budworm, Heliothis virescens (F.), was evaluated on cotton plants genetically engineered to express Bacillus thuringiensis (Bt) insecticidal proteins, Vip3A and Vip3A +Cry 1Ab (VipCot™). Larvae (2-d-old) of both species were infested on plant terminals of vegetative or flowering stage cotton plants. Regardless of species, more larvae migrated from the plant terminals of Vip3A and VipCot plants compared to larvae infested on a conventional non-Bt cotton line (Coker 312). Larval (2-d-old) survivorship on VipCot™ plant structures was generally lower than that on similar structures of the Vip3A cotton line. …
A Comparison Of Fall-Related Psychological Measures In A Community-Based Setting, Delilah Susanne Moore
A Comparison Of Fall-Related Psychological Measures In A Community-Based Setting, Delilah Susanne Moore
LSU Doctoral Dissertations
Falls and the fall-related psychological concerns associated with these events pose a serious public health problem among aging adults. Fall-related psychological instruments can be useful in quantifying important endpoints for fall prevention programs (Jorstad et al., 2005), yet no research currently exists to justify the use of these psychological instruments in a community-based falls risk screening. Therefore, the purpose of this dissertation was to examine the psychometric properties of several fall-related psychological measures in a falls risk screening context by: (a) examining the reliability and validity of the Falls Efficacy Scale-International (FES-I), Activities-specific Balance Confidence (ABC), modified Survey of Activities …
Wax Extraction And Characterization From Full-Fat And Defatted Rice Bran, Junghong Kim
Wax Extraction And Characterization From Full-Fat And Defatted Rice Bran, Junghong Kim
LSU Doctoral Dissertations
Rice bran oil (RBO) contains 3-4% waxes (rice bran wax, RBW), which are composed of wax esters (WE), hydrocarbons, and other minor constituents. Saponified rice bran wax esters (RBWE) generate fatty acids, long chain alcohols, and phytosterols. Phytosterols and long chain fatty alcohols (policosanol) are known to reduce serum cholesterol and inhibit hepatic cholesterol synthesis. The yields and RBWE contents of RBO and RBW extracted from full-fat RB (FFRB) and defatted RB (DFRB) were determined using 6 different conditions with Soxhlet and Microwave-assisted extraction (MAE). The compositions of WEs from RBO and RBW were also compared. RBW was obtained from …
Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister
Development And Quality Evaluation Of Pre- And Post-Workout Sport Beverages, Maria Christine Pfister
LSU Master's Theses
Athletes and gym goers are continuously searching for sports supplements that will set them apart from others. Resistance training is a popular form of exercise that enables one to increase in strength and power. Resistance or strength training, however, results in several degradation processes. A popular way of enhancing workouts and recovering after workouts is through the consumption of sports drinks. In study one, a preliminary study, eight pre-workout and eight post-workout sports drinks were formulated that contained whey proteins, sugars, natural fruit flavors, and other vitamins and supplements. A consumer acceptance test was preliminarily conducted to evaluate consumer acceptability …
The Effects Of Quercetin On Skeletal Muscle Mitochondrial Biogenesis And Oxphos Regulation, Jeff Lee Soileau
The Effects Of Quercetin On Skeletal Muscle Mitochondrial Biogenesis And Oxphos Regulation, Jeff Lee Soileau
LSU Master's Theses
A high fat diet causes a reduction in the expression of the genes of the electron transport chain, mitochondrial carrier proteins, and PGC-1α and PGC-1ß mRNA. Mitochondrial dysfunction has been linked to numerous chronic diseases. The antioxidant quercetin has been shown to protect against damage caused by exogenous and endogenous free radicals. The purpose of this study was to determine if quercetin would protect the genes of mitochondrial biogenesis (PGC-1α and PGC-1ß) and OXPHOS regulation (NDUFB5 and SDHB) from the downregulation caused by consumption of a high fat diet. The quadriceps muscle was removed from 21 male, C57BL/6J mice that …
Estimating The Economic Impacts Of Hurricane Damage On Coastal Fishing Infrastructure, Tanza Erlambang
Estimating The Economic Impacts Of Hurricane Damage On Coastal Fishing Infrastructure, Tanza Erlambang
LSU Master's Theses
Two severe Hurricanes, Katrina and Rita, caused devastating damages in the northern Gulf of Mexico during late summer and early fall 2005. Louisiana was the most heavily impacted state, where both storms made initial landfall. The storms caused billions of dollars in damages to public and private infrastructure, with particularly strong impacts to coastal fishing businesses. Numerous assessments of coastal fisheries infrastructure damage were developed by state and federal agencies following the storms. The range of estimates varied greatly (from $275 million to $3.5 billion), because of a wide range of methods and assumptions. This study describes two alternative damage …
Molecular Diversity And Coat Protein Expression Of Sweet Potato Leaf Curl Virus, Dina Lida Gutierrez Reynoso
Molecular Diversity And Coat Protein Expression Of Sweet Potato Leaf Curl Virus, Dina Lida Gutierrez Reynoso
LSU Doctoral Dissertations
Leaf curl virus diseases have been reported in sweetpotato throughout the world. One of the causal agents is Sweet potato leaf curl virus (SPLCV) which belongs to the genus Begomovirus (family Geminiviridae). In the United States, SPLCV has been found infecting an ornamental sweetpotato and several breeding lines but not in sweetpotatoes grown for commercial production. SPLCV does not cause symptoms on Beauregard, the predominant sweetpotato cultivar in the US, but it can reduce its yield. Since SPLCV could become an important constraint for sweetpotato production; diagnosis, identification, and characterization are essential steps to develop an effective management program. The …
Enzymatic Production And Biological Activities Of Cellobio-Oligosaccharides From Lignocellulose, Misook Kim
Enzymatic Production And Biological Activities Of Cellobio-Oligosaccharides From Lignocellulose, Misook Kim
LSU Doctoral Dissertations
Cellulose is the most abundant biopolymer in nature and is the major component of lignocellulosic biomass. It has potential to produce not only glucose but value¨Cadded products such as cellobiose and oligosaccharides. Typically, enzymatic hydrolysis of cellulose produces glucose and a small amount of cellobiose. Modification of cellulase solutions altered ratio of glucose to cellobiose produced. The addition of glucose oxidase, gluconolactone, or gluconic acid significantly increased the amount of cellobiose remaining at the end of cellulose hydrolysis. Addition of glucose oxidase resulted in cellobiose being 23.7% of the product sugars from pure cellulose and 14.1% from ligonocellulose (sugarcane bagasse). …
Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis
Maternal Corticosterone Influences On Fear Responses In Offspring Of Quail Divergent Stress Response Lines, Kyndal A. Davis
LSU Master's Theses
Increased fearfulness has been associated with adrenocortical activation. Maternal corticosterone (B) treatment increases egg yolk B, and elevated B in ovo enhances chick avoidance of humans. Quail selected for exaggerated (high stress, HS) as opposed to reduced (low stress, LS) plasma B response to stress are more fearful, and more B is found in the egg yolks of HS than LS hens. Therefore, the underlying fearfulness (tonic immobility, TI) and timidity (hole-in-the-wall box, HWB, emergence) responses were assessed in chicks hatched from eggs of LS and HS hens implanted with silastic tubes containing no B (CON) or B (B-IMPLANT) during …
Examination Of Blueberry Anthocyanins In Prevention Of Age-Related Macular Degeneration Through Retinal Pigment Epithelial Cell Culture Study, Naomi Marie Sundalius
Examination Of Blueberry Anthocyanins In Prevention Of Age-Related Macular Degeneration Through Retinal Pigment Epithelial Cell Culture Study, Naomi Marie Sundalius
LSU Master's Theses
This research investigated the ability of blueberry anthocyanins to inhibit the uptake of N-retinyl-N-retinylidene ethanolamine (A2E) by retinal pigment epithelial (RPE) cells as quantified by pigment epithelial derived factor (PEDF) levels in RPE cells. The A2E was synthesized and identified by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Freeze dried blueberry powder of 50/50 blend (Tifblue/Rubel) anthocyanins were extracted by acetone and concentrated through chromatography. A RPE cell culture study investigating four treatments using a combination of 100 ìM A2E in DMSO and 100 ìg of blueberry anthocyanins in DMSO was tested. The treatments included: (A) control RPE cells; (B) RPE …
Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil
Succession Of Coleoptera On Freshly Killed Loblolly Pine (Pinus Taeda L.) And Southern Red Oak (Quercus Falcata Michaux) In Louisiana, Stephanie Gil
LSU Master's Theses
Wood is important in forest ecology because its large biomass serves as a nutritional substrate and habitat for many organisms, including Coleoptera, and beetles contribute greatly to nutrient recycling in forests. Overlapping complexes of beetles invade dead wood according to the species of tree, ambient conditions, and most importantly, stage of decomposition. Beetle succession was studied in loblolly pines (Pinus taeda L.) and southern red oaks (Quercus falcata Michx.) by documenting beetle arrival and residency in cut, reassembled, and standing bolts. Twelve trees of each species at Feliciana Preserve in West Feliciana parish, LA were felled during October 2004 and …
Antidumping Investigation In Agriculture: Issues Of Trade Diversion-Named Vs Non-Named Countries, Nandini Bandyopadhyay
Antidumping Investigation In Agriculture: Issues Of Trade Diversion-Named Vs Non-Named Countries, Nandini Bandyopadhyay
LSU Master's Theses
This study addresses the issue of antidumping investigations and their effect on trade of agricultural products. The question which this study addresses is whether antidumping is helping domestic industries or is simply diverting trade away from the named countries to the non- named countries (countries not mentioned in the antidumping petition). Antidumping has emerged as an important tool in the hands of importing countries over the last two decades The World Trade Organization (WTO) has defined dumping as a situation of international price discrimination. Dumping occurs when exporting countries are selling the product in the international market at a price …
The Utilization Of Red Blood Cells In Diets For Swine And Poultry, Emily Dawn Frugé
The Utilization Of Red Blood Cells In Diets For Swine And Poultry, Emily Dawn Frugé
LSU Master's Theses
The purpose of this research was to determine if increasing levels of RBC would affect growth performance and carcass characteristics of finishing pigs and growth performance of broilers. Three experiments were conducted to determine the effect of incremental levels of red blood cells (RBC; 0 to 4% and 0 to 2%), and thus increasing levels of dietary Leu on growth performance and linear carcass measurements of finishing pigs. Our results suggest that feeding 3 or 4% RBC causes a decrease in growth performance. However, feeding 1 or 2% RBC in the diets of finishing pigs had no detrimental effects on …
Evaluation Of Aflatoxin-Related Products From Ozonated Corn, Alfredo Domingo Prudente, Jr.
Evaluation Of Aflatoxin-Related Products From Ozonated Corn, Alfredo Domingo Prudente, Jr.
LSU Doctoral Dissertations
This study assessed the efficacy of the ozonation process in degrading aflatoxin in corn, and investigated the chemical reaction between aflatoxin and gaseous ozone. Ozonation (12-13 wt%) totally degraded aflatoxin B1 in a model system. Conversion of aflatoxin into polar compounds was observed during ozonolysis of 100 µg aflatoxin B1 in an aqueous environment and in solid form. Seven intermediate reaction products were separated by two-dimensional thin layer chromatography. HPLC analysis of ozonated AFB1 revealed the presence of six major peaks. MALDI-MS analysis detected compounds that have higher molecular weights than AFB1. The dichloromethane fraction contained compounds with molecular ion …