Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1531 - 1560 of 4162

Full-Text Articles in Entire DC Network

2-Deoxyglucose Inhibits Induction Of Chemokine Expression In 3t3-L1 Adipocytes And Adipose Tissue Explants, Ryan W. Grant, Jacqueline I. Boudreaux, Jacqueline M. Stephens Jan 2017

2-Deoxyglucose Inhibits Induction Of Chemokine Expression In 3t3-L1 Adipocytes And Adipose Tissue Explants, Ryan W. Grant, Jacqueline I. Boudreaux, Jacqueline M. Stephens

Faculty Publications

© 2016 The Obesity Society Objective: To determine the influence of glycolytic inhibition on the adipocyte inflammatory response. Methods: To determine the effect of 2-deoxyglucose (2-DOG) on the inflammatory response, mature 3T3-L1 adipocytes were co-treated with 2-DOG and LPS or TNF. To determine the effect of endoplasmic reticulum stress on TNF-induced induction of chemokines, adipocytes were pretreated with thapsigargin or salubrinal. Chemokine mRNA levels were determined using quantitative real-time PCR, and secretion of CCL2 was determined by Western blot. Results: 2-DOG treatment reduced the ability of LPS and TNF to induce CCL2 mRNA levels and reduced secreted CCL2 protein levels …

Go to article

Oncostatin M Impairs Brown Adipose Tissue Thermogenic Function And The Browning Of Subcutaneous White Adipose Tissue, David Sánchez-Infantes, Rubén Cereijo, Marion Peyrou, Irene Piquer-Garcia, Jacqueline M. Stephens, Francesc Villarroya Jan 2017

Oncostatin M Impairs Brown Adipose Tissue Thermogenic Function And The Browning Of Subcutaneous White Adipose Tissue, David Sánchez-Infantes, Rubén Cereijo, Marion Peyrou, Irene Piquer-Garcia, Jacqueline M. Stephens, Francesc Villarroya

Faculty Publications

© 2016 The Obesity Society Objective: Since oncostatin m (OSM) is elevated in adipose tissue in conditions of obesity and type 2 diabetes in mice and humans, the aim of this study was to determine whether this cytokine plays a crucial role in the impairment of brown adipose tissue (BAT) activity and browning capacity that has been observed in people with obesity. Methods: C57BL/6J mice rendered obese by high-fat diet, their lean controls, and C57BL/6J mice fed a standard diet and implanted subcutaneously with a mini pump through a surgical procedure to deliver OSM or placebo were used. Preadipocytes or …

Go to article

The Biogeography Of Sodium In Neotropical Figs (Moraceae), Adriana Bravo, Kyle E. Harms Jan 2017

The Biogeography Of Sodium In Neotropical Figs (Moraceae), Adriana Bravo, Kyle E. Harms

Faculty Publications

© 2016 The Association for Tropical Biology and Conservation Sodium is essential for animals but not for most plants. Terrestrial sodium comes largely from marine aerosols, so inland ecosystems should have greater potential for sodium limitation than coastal ecosystems. We report a significant decrease of sodium in fruits of four Neotropical Ficus species with distance from presumed marine source.

Go to article

Sex-Specific Inhibition And Stimulation Of Worker-Reproductive Transition In A Termite, Qian Sun, Kenneth F. Haynes, Jordan D. Hampton, Xuguo Zhou Jan 2017

Sex-Specific Inhibition And Stimulation Of Worker-Reproductive Transition In A Termite, Qian Sun, Kenneth F. Haynes, Jordan D. Hampton, Xuguo Zhou

Faculty Publications

In social insects, the postembryonic development of individuals exhibits strong phenotypic plasticity in response to the environment, thus generating the caste system. Different from eusocial Hymenoptera, in which queens dominate reproduction and inhibit worker fertility, the primary reproductive caste in termites (kings and queens) can be replaced by neotenic reproductives derived from functionally sterile individuals. Feedback regulation of nestmate differentiation into reproductives has been suggested, but the sex specificity remains inconclusive. In the eastern subterranean termite, Reticulitermes flavipes, we tested the hypothesis that neotenic reproductives regulate worker-reproductive transition in a sex-specific manner. With this R. flavipes system, we demonstrate a …

Go to article

Biology And Management Of The Buck Moth, Hemileuca Maia (Lepidoptera: Saturniidae), T. D. Schowalter, D. R. Ring Jan 2017

Biology And Management Of The Buck Moth, Hemileuca Maia (Lepidoptera: Saturniidae), T. D. Schowalter, D. R. Ring

Faculty Publications

The genus Hemileuca Walker (Lepidoptera: Saturniidae) is widespread across North America, with about 20 species, including the buck moth, Hemileuca maia (Drury). This species is important as a periodic defoliator in oak forests of the eastern United States but is not considered to be destructive to forest resources. Buck moth populations are regulated naturally by environmental factors, particularly foliage quality, predators, parasitoids, and pathogens. The buck moth has become a species of conservation concern in northern states, where it is threatened by habitat loss, fire suppression and other anthropogenic changes in habitat conditions, and perhaps by parasitoids introduced to control …

Go to article

Biology And Management Of The Texas Leafcutting Ant (Hymenoptera: Formicidae), T. D. Schowalter, D. R. Ring Jan 2017

Biology And Management Of The Texas Leafcutting Ant (Hymenoptera: Formicidae), T. D. Schowalter, D. R. Ring

Faculty Publications

Leafcutting ants are primarily a tropical group, but three species, particularly the Texas leafcutting ant, Atta texana (Buckley) (Hymenoptera: Formicidae), occur in the southern United States. Leafcutting ants provide an example of the complexity of ecological interactions. As a result of extensive defoliation and nest excavation, these ants influence vegetation cover, soil structure, and water fluxes over a significant portion of the landscape. They also can be severe forest and crop pests, and collapse of their extensive underground colonies can undermine roads and structures. In Texas, they are considered the second most important pest in pine plantations, following southern pine …

Go to article

Biology And Management Of The Forest Tent Caterpillar (Lepidoptera: Lasiocampidae), Timothy D. Schowalter Jan 2017

Biology And Management Of The Forest Tent Caterpillar (Lepidoptera: Lasiocampidae), Timothy D. Schowalter

Faculty Publications

The forest tent caterpillar, Malacosoma disstria Hübner (Lepidoptera: Lasiocampidae) is a widespread defoliator that is native throughout most of the continental United States and Canada south of 61°N latitude. Larvae feed on a wide variety of hosts across their geographic range, but local populations perform best on local host species. Defoliation during outbreaks can strip preferred trees of all foliage and cause substantial branch mortality and growth reduction but generally does not cause much tree mortality, at least not directly. Defoliation in recreational areas reduces visitation because migrating caterpillars are viewed as nuisances and defoliated trees as unsightly. The insects, …

Go to article

2017 Annual Report, Louisiana Rice Research Board, Lsu Agcenter Jan 2017

2017 Annual Report, Louisiana Rice Research Board, Lsu Agcenter

Louisiana Rice Research Board Annual Report

No abstract provided.

Go to article

Accelerometer-Measured Physical Activity Is Not Associated With Two-Year Weight Change In African-Origin Adults From Five Diverse Populations, Lara R. Dugas, Stephanie Kliethermes, Jacob Plange-Rhule, Liping Tong, Pascal Bovet, Terrence E. Forrester, Estelle V. Lambert, Dale A. Schoeller, Ramon A. Durazo-Arvizu, David A. Shoham, Guichan Cao, Soren Brage, Ulf Ekelund, Richard S. Cooper, Amy Luke Jan 2017

Accelerometer-Measured Physical Activity Is Not Associated With Two-Year Weight Change In African-Origin Adults From Five Diverse Populations, Lara R. Dugas, Stephanie Kliethermes, Jacob Plange-Rhule, Liping Tong, Pascal Bovet, Terrence E. Forrester, Estelle V. Lambert, Dale A. Schoeller, Ramon A. Durazo-Arvizu, David A. Shoham, Guichan Cao, Soren Brage, Ulf Ekelund, Richard S. Cooper, Amy Luke

Faculty Publications

Background. Increasing population-levels of physical activity (PA) is a controversial strategy for managing the obesity epidemic, given the conflicting evidence for weight loss from PA alone per se. We measured PA and weight change in a three-year prospective cohort study in young adults from five countries (Ghana, South Africa, Jamaica, Seychelles and USA). Methods. A total of 1,944 men and women had baseline data, and at least 1 follow- up examination including measures of anthropometry (weight/BMI), and objective PA (accelerometer, 7-day) following the three-year study period. PA was explored as 1-minute bouts of moderate and vigorous PA (MVPA) as well …

Go to article

Eco-Health Linkages: Assessing The Role Of Ecosystem Goods And Services On Human Health Using Causal Criteria Analysis, Rebeca De Jesus Crespo, Richard Fulford Jan 2017

Eco-Health Linkages: Assessing The Role Of Ecosystem Goods And Services On Human Health Using Causal Criteria Analysis, Rebeca De Jesus Crespo, Richard Fulford

Faculty Publications

No abstract provided.

Go to article

Characterization Of Biobased Polyurethane Foams Employing Lignin Fractionated From Microwave Liquefied Switchgrass, Xingyan Huang, Cornelis F. De Hoop, Jiulong Xie, Chung Yun Hse, Jinqiu Qi, Tingxing Hu Jan 2017

Characterization Of Biobased Polyurethane Foams Employing Lignin Fractionated From Microwave Liquefied Switchgrass, Xingyan Huang, Cornelis F. De Hoop, Jiulong Xie, Chung Yun Hse, Jinqiu Qi, Tingxing Hu

Faculty Publications

Lignin samples fractionated from microwave liquefied switchgrass were applied in the preparation of semirigid polyurethane (PU) foams without purification. The objective of this study was to elucidate the influence of lignin in the PU matrix on the morphological, chemical, mechanical, and thermal properties of the PU foams. The scanning electron microscopy (SEM) images revealed that lignin with 5 and 10% content in the PU foams did not influence the cell shape and size. The foam cell size became larger by increasing the lignin content to 15%. Fourier transform infrared spectroscopy (FTIR) indicated that chemical interactions occurred between the lignin hydroxyl …

Go to article

Gge Biplot Projection In Discriminating The Efficiency Of Popcorn Lines To Use Nitrogen, Adriano Dos Santos, Antônio Teixeira Do Amaral Júnior, Railan Do Nascimento Ferreira Kurosawa, Ismael Fernando Schegoscheski Gerhardt, Roberto Fritsche Neto Jan 2017

Gge Biplot Projection In Discriminating The Efficiency Of Popcorn Lines To Use Nitrogen, Adriano Dos Santos, Antônio Teixeira Do Amaral Júnior, Railan Do Nascimento Ferreira Kurosawa, Ismael Fernando Schegoscheski Gerhardt, Roberto Fritsche Neto

Faculty Publications

Nitrogen is essential for sustaining life on the planet, and it is the most important nutrient for obtaining high agricultural production. However, their use leads to the release of nitrous oxide with a global warming potential 296 times higher than the CO2 molecule, making it a challenge to reduce their use in agriculture. The objective of this research was to identify efficient popcorn inbred lines and responsive nitrogen use and exhibit a good expansion volume. For this, 29 inbred lines from the Germplasm Collection of Darcy Ribeiro North Fluminense State University (UENF) were evaluated at two contrasting levels of nitrogen …

Go to article

Tropical Maize Selection Indexes Genotypes For Efficiency In Use Of Nutrients: Phosphorus, Gabriel Gonçalves Dos Reis, Felipe Bermudez Pereira, Italo Stefanine Correia Granato, Júlio César Dovale, Roberto Fritsche-Neto Jan 2017

Tropical Maize Selection Indexes Genotypes For Efficiency In Use Of Nutrients: Phosphorus, Gabriel Gonçalves Dos Reis, Felipe Bermudez Pereira, Italo Stefanine Correia Granato, Júlio César Dovale, Roberto Fritsche-Neto

Faculty Publications

Brazil generates an annual demand for more than 2.83 million tons of phosphate fertilizers. Part of this is due to low P use efficiency (PUE) by plants, particularly in current maize cultivars. Thus, the aim of this study was to create indexes that allow accurate selection of maize genotypes with high PUE under conditions of either low or high P availability. The experiment was conducted in a greenhouse (20°45'14"S; 42°52'53"W) at the Universidade Federal de Viçosa in October 2010. We evaluated 39 experimental hybrid combinations and 14 maize inbred lines with divergent PUE under two conditions of P availability. The …

Go to article

Modelling Aspects Of Oviduct Fluid Formation In Vitro, Constantine A. Simintiras, Thomas Fröhlich, Thozhukat Sathyapalan, Georg J. Arnold, Susanne E. Ulbrich, Henry J. Leese, Roger G. Sturmey Jan 2017

Modelling Aspects Of Oviduct Fluid Formation In Vitro, Constantine A. Simintiras, Thomas Fröhlich, Thozhukat Sathyapalan, Georg J. Arnold, Susanne E. Ulbrich, Henry J. Leese, Roger G. Sturmey

Faculty Publications

Oviduct fluid is the microenvironment that supports early reproductive processes including fertilisation, embryo cleavage and genome activation. However, the composition and regulation of this critical environment remain rather poorly defined. This study uses an in vitro preparation of the bovine oviduct epithelium to investigate the formation and composition of in vitro-derived oviduct fluid (ivDOF) within a controlled environment. We confirm the presence of oviduct-specific glycoprotein 1 in ivDOF and show that the amino acid and carbohydrate content resembles that of previously reported in vivo data. In parallel, using a different culture system, a panel of oviduct epithelial solute carrier genes …

Go to article

Dual Roles Of Oxidative Stress In Metal Carcinogenesis, Jie Xu, James T.F. Wise, Lei Wang, Kortney Schumann, Zhuo Zhang, Xianglin Shi Jan 2017

Dual Roles Of Oxidative Stress In Metal Carcinogenesis, Jie Xu, James T.F. Wise, Lei Wang, Kortney Schumann, Zhuo Zhang, Xianglin Shi

Faculty Publications

It has been well established that environmental and occupational exposure to heavy metal causes cancer in several organs. Although the exact mechanism of heavy metal carcinogenesis remains elusive, metal-generated reactive oxygen species (ROS) are essential. ROS can play two roles in metal carcinogenesis; two stages in the process of metal carcinogenesis differ in the amounts of ROS activating a dual redox-mediated mechanism. In the early stage of metal carcinogenesis, ROS acts in an oncogenic role. However, in the late stage of metal carcinogenesis, ROS plays an antioncogenic role. Similarly, NF-E2–related factor 2 (Nrf2) also has two different roles, which makes …

Go to article

Poultry Litter Ash Reduces Phosphorus Losses During Greenhouse Production Of Lantana Camara L. ‘New Gold’, Daniel E. Wells, Jeffrey S. Beasley, Lewis A. Gaston, Edward W. Bush, Maureen E. Thiessen Jan 2017

Poultry Litter Ash Reduces Phosphorus Losses During Greenhouse Production Of Lantana Camara L. ‘New Gold’, Daniel E. Wells, Jeffrey S. Beasley, Lewis A. Gaston, Edward W. Bush, Maureen E. Thiessen

Faculty Publications

Phosphorus (P) fertilizers with high water-solubility are often applied in excessive amounts to porous horticultural substrates to produce high-quality plants. As a result, high P losses during containerized plant production have presented an environmental challenge to responsible growers. Poultry litter ash (PLA), a byproduct of bioenergy production, contains P concentrations comparable to conventional P fertilizers but is characterized as having lower water-solubility. Therefore, a series of experiments were conducted to characterize effects of PLA on container-plant growth and P leaching. PLA was compared with superphosphate (SP), a highly water-soluble P source, in ratios of 0:100, 25:75, 50:50, 75:25, and 100:0 …

Go to article

Accuracy And Simultaneous Selection Gains For N-Stress Tolerance And N-Use Efficiency In Maize Tropical Lines, Leandro De Freitas Mendonça, Ítalo Stefanine Correia Granato, Filipe Couto Alves, Pedro Patric Pinho Morais, Miriam Suzane Vidotti, Roberto Fritsche-Neto Jan 2017

Accuracy And Simultaneous Selection Gains For N-Stress Tolerance And N-Use Efficiency In Maize Tropical Lines, Leandro De Freitas Mendonça, Ítalo Stefanine Correia Granato, Filipe Couto Alves, Pedro Patric Pinho Morais, Miriam Suzane Vidotti, Roberto Fritsche-Neto

Faculty Publications

Maize plants can be N-use efficient or N-stress tolerant. The first have high yields in favorable environments but is drastically affected under stress conditions; whereas the second show satisfactory yields in stressful environments but only moderate ones under optimal conditions. In this context, our aim was to assess the possibility of selecting tropical maize lines that are simultaneously N-stress tolerant and N-use efficient and check for differences between simultaneous selection statistical methods. Sixty-four tropical maize lines were evaluated for Nitrogen Agronomic Efficiency (NAE) and Low Nitrogen Tolerance (LNTI) response indices and two per se selection indices, Low Nitrogen Agronomic Efficiency …

Go to article

Measuring The Effects Of Recycled Water On The Growth Of Three Algal Species: Tisochrysis Lutea, Chaetcoeros Calcitrans, And C. Muelleri In A Commercial-Scale Oyster Hatchery, Lisa Marie Bourassa Jan 2017

Measuring The Effects Of Recycled Water On The Growth Of Three Algal Species: Tisochrysis Lutea, Chaetcoeros Calcitrans, And C. Muelleri In A Commercial-Scale Oyster Hatchery, Lisa Marie Bourassa

LSU Master's Theses

Algal production is often the limiting factor in large-scale oyster hatcheries, and constant, reliable production is required to grow enough algae to support all oyster larvae and broodstock grown and conditioned in a hatchery. The algal rooms in the Michael C. Voisin Oyster Hatchery at Grand Isle, LA are temperature-controlled to maintain consistent temperature, but this hatchery is also unique in its ability to recycle natural seawater pumped from the northern Gulf of Mexico. Effects of recycling seawater on algal production in an oyster hatchery, however, are undocumented. In this study, Tisochrysis lutea, Chaetoceros calcitrans and C. muelleri were grown …

Go to article

Evaluation Of Biochar As A Feed Additive In Commercial Broiler Diets, Brandon Michael Cheron Jan 2017

Evaluation Of Biochar As A Feed Additive In Commercial Broiler Diets, Brandon Michael Cheron

LSU Master's Theses

Two experiments were conducted to evaluate sugarcane biochar as a feed ingredient in commercial broiler diets. Experiment 1 was conducted for 11 days using 300 male Ross 708 broilers. Broilers were allotted to one of five treatment diets containing 0%, 0.5%, 1.0%, 2%, or 4% biochar. Experiment 2 was conducted for 19 days using 450 male Ross 708 broilers. Chicks were allotted to one of 9 treatment diets containing 0%, 0.25%, 0.5%, 0.75%, 1%, 1.25%, 1.5%, 1.75% or 2% biochar. Broilers and feed were weighed at day 0 and 10 in experiment 1 and day 0, 10 and 18 in …

Go to article

Comparative Viability Of Spray Dried Lactobacilli Affected By Different Protective Agents And Storage Conditions, Vondel Vandeker Reyes Ortega Jan 2017

Comparative Viability Of Spray Dried Lactobacilli Affected By Different Protective Agents And Storage Conditions, Vondel Vandeker Reyes Ortega

LSU Master's Theses

Because of their health benefits, probiotics are a significant part of the functional food industry. Spray drying is reported as the most common method used in the food industry to encapsulate probiotics. The objectives of this study were to investigate the effects of protective agents on the viability of lactobacilli after spray drying and during storage at different conditions and to evaluate spray drying conditions to produce these probiotic powders. Lactobacillus plantarum NRRL B-4496 (LP) and Lactobacillus acidophilus NRRL B-4495 (LA) were separately grown (~109 CFU/ml) and suspended in a 200 g/L solution of high maize starch (HM); maltodextrin (MD); …

Go to article

Evaluation Of The Microbial Quality Of Cantaloupe Fruit Produced On Raised Or Flat Beds Following A Flooding Event, Isaack Kikway Jan 2017

Evaluation Of The Microbial Quality Of Cantaloupe Fruit Produced On Raised Or Flat Beds Following A Flooding Event, Isaack Kikway

LSU Master's Theses

Floodwater can contain microbial contaminants such as plant and foodborne pathogens and can compromise the quality of fresh fruit and vegetables produced in Louisiana. The goal of this research was to determine the impact of flooding on microbial quality (foodborne and plant pathogens) of cantaloupe fruit produced on raised or flat beds. Cantaloupe fruit produced on 30 cm raised beds or flat ground, were flooded with a mixture of surface and well water spiked with three generic Escherichia coli strains (ATCC 23716, 25922, 11775). Mean baseline generic Escherichia coli and total coliform populations in flood water (mixture of spiked well …

Go to article

Physiological And Psychological Well-Being During The Spring Season In Female Soccer Players, Adam Conrad Lowe Jan 2017

Physiological And Psychological Well-Being During The Spring Season In Female Soccer Players, Adam Conrad Lowe

LSU Master's Theses

Female student-athletes are an understudied population that are exposed to athletic stressors in addition to academic and social stressors. This study is designed to investigate the physiological and psychological well-being during the spring season in female Division I soccer players. During the 2017 spring season, participants competed in five matches over five weeks and participated in three to four soccer training sessions in between match days. To measure well-being, both objective and subjective measures were used. Activation state was collected via the Activation Deactivation Adjective Checklist (AD-ACL) before all matches. Heart rate and heart rate variability were measured during all …

Go to article

Pots, Pans, And Politics: Feasting In Early Horizon Nepeña, Peru, Kenneth Edward Sutherland Jan 2017

Pots, Pans, And Politics: Feasting In Early Horizon Nepeña, Peru, Kenneth Edward Sutherland

LSU Master's Theses

This thesis explores Early Horizon (900 – 200 BCE) feasting practices visible through the pottery assemblage at three archaeological complexes in the lower Nepeña Valley, north-central coast of Peru. Ceramic vessels were used for production, transportation, and storage of foods consumed for daily subsistence and during feasting events at the settlement of Caylán, a large town or city interpreted as the primary center of a multi-tiered polity. Secondary settlements at Samanco, a small coastal town, and Huambacho, an elite ceremonial center, indicate the complexity of this polity. Analysis of ceramic rim sherds reveals the types of vessels used at these …

Go to article

Susceptibility Of The Southern House Mosquito, Culex Quinquefasciatus, In East Baton Rouge Parish To Larval Insecticides, Nicholas Alexander Delisi Jan 2017

Susceptibility Of The Southern House Mosquito, Culex Quinquefasciatus, In East Baton Rouge Parish To Larval Insecticides, Nicholas Alexander Delisi

LSU Master's Theses

Mosquito control districts in Louisiana focus their efforts on Culex quinquefasciatus, the primary vector of West Nile virus in the southern United States, with rigorous larvicide treatments. However, the development of resistant populations of Cx. quinquefasciatus in response to extensive insecticide application has been demonstrated repeatedly. Examining changes in insecticide susceptibility and larvicide efficacy in real world scenarios can help inform mosquito control districts as to whether or not their treatments are killing mosquitoes. We hypothesized that frequent larvicide applications for the control of mosquitoes in East Baton Rouge Parish had lowered susceptibility of wild Cx. quinquefasciatus to insecticides, and …

Go to article

The Effect Of Storage Temperature And Time On The Quality Of Spray Dried Egg Powder, Fallon Polette Salinas Gonzalez Jan 2017

The Effect Of Storage Temperature And Time On The Quality Of Spray Dried Egg Powder, Fallon Polette Salinas Gonzalez

LSU Master's Theses

Dehydration is a good approach for egg preservation. However, dried egg products may still suffer from deterioration if stored in an abused temperature environment or prolonged times. Storage conditions can induce undesirable reactions and loss of functionality and quality. The objective of this study was to evaluate the physicochemical characteristics and functionality of spray dried egg yolk powders, which included plain whole egg (PLWE), free flow yolk (FFY), enzyme modified yolk (EMY), and free flow whole egg (FFWE) stored at 4 °C, 25 °C, 43 °C or 54 °C, over a 2-month period; and provide useful suggestions to maximize quality …

Go to article

The Immediate And Extended Effect Of Diet And Exercise On Metabolic Flexibility, Timothy Allerton Jan 2017

The Immediate And Extended Effect Of Diet And Exercise On Metabolic Flexibility, Timothy Allerton

LSU Doctoral Dissertations

Metabolic inflexibility is an emerging physiological marker indicative of metabolic dysfunction and associated with type 2 diabetes (T2D) and obesity. Exercise is a potent stimulus to improve metabolic health, however, not much is known about the acute effects of exercise on metabolic flexibility (METFLEX). The purpose of this dissertation was study the time-course of diet and exercise and its effects on METFLEX. Three studies were conducted to investigate molecular and clinical aspects of diet and exercise and how these stimuli may alter the metabolic response to fuel. The first study was conducted on obesity-prone, Osborne-Mendel (OM) and obesity-resistant S5B/Pl (S5B) …

Go to article

Assessing The Effects Of The Smartphone As A Learning Tool On The Academic Achievement And Motivation Of High School Agriculture Students In Louisiana, Henry Eric Smith Jan 2017

Assessing The Effects Of The Smartphone As A Learning Tool On The Academic Achievement And Motivation Of High School Agriculture Students In Louisiana, Henry Eric Smith

LSU Doctoral Dissertations

Perhaps the most influential device in modern society is the smartphone. Over 90% of Americans aged 18-29 own a smartphone and 74% of teenagers reported using a smartphone as their primary internet connection. Students perceived that using smartphones in the classroom aided learning. However, two-thirds of American high schools ban students from using phones in the classroom. Secondary science curriculum focuses on subjects that regard the biodiversity of plant and animal species, but disregard the student’s ability to identify species. Consequently, secondary students in general are very poor at identifying species of trees. Previous research supports the idea that advanced …

Go to article

Lignocellulosic Syrup Production From Energy Cane Bagasse And Fumaric Acid Fermentation, Fang Deng Jan 2017

Lignocellulosic Syrup Production From Energy Cane Bagasse And Fumaric Acid Fermentation, Fang Deng

LSU Doctoral Dissertations

Lignocellulosic syrup from dilute ammonia pretreated energy cane bagasse is a promising fermentable sugar feedstock that can improve the logistics associated with long-distance transportation, long-time storage, and year-round supply of lignocellulosic biomass to processing industries. However, non-sugar compounds such as organic acids, furans and phenolic compounds formed during pretreatment can have negative effects on downstream processes such as fermentation. This dissertation focused on addressing challenges associated with the bioconversion of energy cane bagasse to syrup and its fermentation to fumaric acid. The first goal (Chapter 2) was to evaluate the removal of non-sugar compounds with minimal sugar losses from dilute …

Go to article

Three Essays On Consumption Behavior, Credit, And Labor Supply Of Farm Households In Sub-Saharan Africa: Evidence From Uganda, Seydina Ousmane Sene Jan 2017

Three Essays On Consumption Behavior, Credit, And Labor Supply Of Farm Households In Sub-Saharan Africa: Evidence From Uganda, Seydina Ousmane Sene

LSU Doctoral Dissertations

Consumption patterns, credit, and labor supply are determinants of human welfare, and also indicators of a country's economic progress, poverty, and inequalities. In this study, I review many of the stylized facts regarding consumption behaviors, credit, and the decision to engage in off-farm labor supply. I also put the life cycle model into an empirical model and perform testing. This is done in a three-essay format with a focus on the country of Uganda. In the first essay, I test whether farm households’ consumption behavior is consistent with an optimization process predicted by economic theory. In essay II, I evaluate …

Go to article

The Roles Of Avr4 In Fungal Virulence,Cercosporin Biosynthesis And Its Potential Use In Host Induced Gene Silencing For Controlling Cercospora Leaf Blight Disease Of Soybeans, Josielle Santos Rezende Jan 2017

The Roles Of Avr4 In Fungal Virulence,Cercosporin Biosynthesis And Its Potential Use In Host Induced Gene Silencing For Controlling Cercospora Leaf Blight Disease Of Soybeans, Josielle Santos Rezende

LSU Doctoral Dissertations

The AVR4 effector, secreted by Cladosporium fulvum, has been demonstrated to be involved in pathogen virulence. Recent studies further demonstrated that Avr4 is highly conserved among several Cercospora species, indicating a potential important role of this gene in fungal virulence. Therefore, investigation to determine whether this fungal effector gene is present in Cercospora cf. flagellaris (previously known as C. kikuchii), the causal agent of soybean cercospora leaf blight (CLB) disease, and whether it plays any role in CLB disease development, is of great interest. In the present study, the Avr4 gene from C. cf. flagellaris was cloned and mutants lacking …

Go to article

First Prev Next Last