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Articles 1111 - 1140 of 2496
Full-Text Articles in Life Sciences
Metabolic Preconditioning Of Mammalian Cells: Approaches For Increasing Biostability After Desiccation, Apurva Shrihari Borcar
Metabolic Preconditioning Of Mammalian Cells: Approaches For Increasing Biostability After Desiccation, Apurva Shrihari Borcar
LSU Doctoral Dissertations
Selected species in nature are able to tolerate prolonged periods of severe water stress. Survival of cellular desiccation in these anhydrobiotic organisms is conferred by a number of mechanisms including accumulation of stabilizing solutes, such as trehalose, and expression of Late Embryogenesis Abundant (LEA) proteins. An additional feature shared by some anhydrobiotic animals is the capacity to suppress mitochondrial oxidative phosphorylation in preparation for desiccation. These mechanisms improve the physiological robustness of cells to stress. The primary aim of this dissertation is to evaluate forms of metabolic preconditioning and to test the most propitious as a means to improve desiccation …
Molecular Genetics Of Salinity Tolerance In Rice (Oryza Sativa L.), Teresa Bermejo De Leon
Molecular Genetics Of Salinity Tolerance In Rice (Oryza Sativa L.), Teresa Bermejo De Leon
LSU Doctoral Dissertations
Due to the threat of salinity stress to Louisiana rice production, an effort was made to understand the molecular genetics of salinity tolerance with the overall goal of developing salt tolerant varieties. The objectives of this study were to 1) determine if salinity tolerance exist in the US rice varieties, 2) map the additive and epistatic QTLs for traits related to seedling salinity tolerance in recombinant inbred lines (RILs) using genotyping-by-sequencing (GBS)-derived SNP markers, and 3) identify and validate stable QTLs and their effects in introgression lines (ILs) of Pokkali in Bengal background. All experiments for phenotypic characterization were conducted …
The Effects Of Using Knee Wraps On Back Squat And Vertical Jump Performance., Cardyl Trionfante
The Effects Of Using Knee Wraps On Back Squat And Vertical Jump Performance., Cardyl Trionfante
LSU Doctoral Dissertations
Using knee wraps (KW) as an ergogenic aid has been commonly practiced in various sports such as powerlifting, strongman, and Olympic weightlifting. There is limited research investigating the effects of using KW during back squat (BS) and none regarding vertical jump (VJ). This dissertation investigates the effects of wearing KW on BS and VJ performance through a series of studies. The first study was designed to observe acute and long term effects of using KW on VJ performance. VJ performance decreased when KW were worn and was not considered an ergogenic aid for VJ. The second study was designed to …
The Role Of Burkholderia Thailandensis-Encoded Marr Homologs In Response To Host-Derived Signals, Ashish Gupta
The Role Of Burkholderia Thailandensis-Encoded Marr Homologs In Response To Host-Derived Signals, Ashish Gupta
LSU Doctoral Dissertations
Multiple antibiotic resistance regulator (MarR) family is the most ubiquitous category of transcriptional regulators that exists among different bacteria and archaea. MarR family transcriptional regulators have been studied for their involvement in various biological processes, such as environmental chemical response, pathogenicity, and environmental stress responses. This work elucidates the role of MarR homologs MftR (major facilitator transcriptional regulator) and BifR (biofilm regulator) in the soil bacterium Burkholderia thailandensis. Burkholderia thailandensis-encoded MarR homolog MftR is divergently oriented to a gene that encodes the efflux pump MftP (major facilitator transport protein). MftR binds two cognate sites (each site consist of 9 bp …
Structure And Functional Potential Of Microbial Communities In Subglacial Lake Whillans And At The Ross Ice Shelf Grounding Zone, West Antarctica, Amanda Marie Achberger
Structure And Functional Potential Of Microbial Communities In Subglacial Lake Whillans And At The Ross Ice Shelf Grounding Zone, West Antarctica, Amanda Marie Achberger
LSU Doctoral Dissertations
The abundance of liquid water found beneath the Antarctic Ice Sheet (AIS) is thought to provide a suitable habitat for microbial life. However, the thick ice sheet has posed a significant obstacle to accessing this isolated system and as a consequence, little data exists to infer ecosystem processes occurring beneath ice sheets. To address this deficit, data generated through 16S rRNA (genes and molecules) and metagenomic sequencing was used to evaluate the diversity and potential metabolic function of communities inhabiting Subglacial Lake Whillans (SLW) and the ocean basin into which it discharges (Whillans Ice Stream grounding zone; WIS-GZ). The analysis …
Characterization Of Xylella Fastidiosa In Rabbiteye Blueberry, Mary Helen Ferguson
Characterization Of Xylella Fastidiosa In Rabbiteye Blueberry, Mary Helen Ferguson
LSU Doctoral Dissertations
Xylella fastidiosa colonizes the xylem of a wide range of plants and causes symptoms in many of them. It was of interest to determine how widespread X. fastidiosa was and what its potential impact might be in rabbiteye blueberry. X. fastidiosa was detected from two of 17 Louisiana orchards from which samples were collected. A yield study was conducted at one of these orchards, and mean yields of X. fastidiosa-positive plants were 55% and 62% less than those of X. fastidiosa-negative plants in 2013 and 2014, respectively. Average berry weight was also lower in X. fastidiosa-positive plants. However, plants that …
Cardiovascular And Autonomic Nervous System Function: Impact Of Glucose Ingestion, Hydration Status And Exercise In Heated Environments, Kate Suzanne Early
Cardiovascular And Autonomic Nervous System Function: Impact Of Glucose Ingestion, Hydration Status And Exercise In Heated Environments, Kate Suzanne Early
LSU Doctoral Dissertations
Cardiovascular function is under the influence of autonomic nervous system, both of which can be assessed non-invasively. The purpose of this dissertation was to examine these non-invasive markers of cardiovascular and autonomic function and their relationships with exercise training, glucose ingestion and hydration status. A series of three studies were conducted to gain insight to various influences on cardiovascular and autonomic function. The first study examined the influence of exercise training of brachial artery flow-mediated dilation (BAFMD) using meta-analytic techniques. Sixty-six studies included in the analysis demonstrated exercise training improves BAFMD compared to controls. Results indicated exercise training significantly alters …
How Do Social Norms Affect Physical Activity And Performance On An Endurance Task?, Keith David Randazzo
How Do Social Norms Affect Physical Activity And Performance On An Endurance Task?, Keith David Randazzo
LSU Doctoral Dissertations
Despite the extensive benefits associated with a physically active life style, less than 50% of US adults engage in recommended levels of physical activity (PA), so finding ways to structure environments to promote PA is an important concern. Social norms, conceptualized as an individual’s perception of peer behavior, provide a framework for exploring factors that influence decisions to be physically active. Although researchers have investigated how social norms influence a variety of behaviors, the PA domain has not been fully explored. The focus of this dissertation is to apply social norms theories to investigate how normative information influences PA intentions …
Isolation And Identification Of Foodborne Pathogens And Spoilage Bacteria In Environmental And Food Samples, Myriam Evelyn Gutierrez Barberena
Isolation And Identification Of Foodborne Pathogens And Spoilage Bacteria In Environmental And Food Samples, Myriam Evelyn Gutierrez Barberena
LSU Doctoral Dissertations
Escherichia coli O157:H7 has become an important problem for human health in the United States. Scientific studies indicate cattle herds as primary reservoirs of E. coli O157:H7. To diagnose this pathogen, proper isolation and identification methods are crucial. From five different culture media, CT-SMAC and CHROMagar™ O157 results analyzed simultaneously were the best option for an effective detection of environmental E. coli O157. Despite extensive research at feedlots and dairy farms, there is limited information available on the prevalence of E. coli O157:H7 at cow/calf operations. From 28 small-scale cow/calf operations in the state of Louisiana, we observed an 8% …
An Assessment Of The Economic Feasibility Of Establishing A Biofuel Industry In The State Of Louisiana, Alessandro Holzapfel
An Assessment Of The Economic Feasibility Of Establishing A Biofuel Industry In The State Of Louisiana, Alessandro Holzapfel
LSU Master's Theses
As national interests continue to encourage the development of advanced cellulosic biofuels, through legislation, research support and other means, a wide range of alternative agricultural crops are being evaluated in various regions of the country as potential feedstock material for biofuel processing facilities. Previous research has shown that both energy cane and sweet sorghum can be successfully grown in Louisiana. This study evaluated the economic feasibility of utilizing energy cane and sweet sorghum as biofuel feedstock crops. Economic analysis focused on two primary factors: estimation of feedstock cost and optimal location of processing facilities. Five cropping sequences were evaluated in …
An Investigation Of The Generalizability Of Buoyancy From Academics To Athletics, Jackie Rae Victoriano
An Investigation Of The Generalizability Of Buoyancy From Academics To Athletics, Jackie Rae Victoriano
LSU Master's Theses
Buoyancy, the ability of an individual to handle everyday setbacks, has been applied successfully to academics, and has implications for performance and well-being. The purpose of this investigation was to determine if the concept of buoyancy can be successfully applied to the domain of sports (i.e., athletic buoyancy). This study sought to examine the relationship between academic and athletic buoyancy, as well as the efficacy of five sport-oriented predictors (5Cs), confidence, coordination (planning), commitment, composure (anxiety), and control, on both athletic and academic buoyancy. Sport club athletes (N = 285) aged 18 to 31 years completed a one-time survey assessing …
Dietary Plant Lectins May Be An ‘Unknown Etiology’ In Parkinson’S Disease And Dietary Bioactive Compounds Affect Lifespan And Fat Storage Aspects Of Caenorhabditis Elegans, Mingming Wang
LSU Doctoral Dissertations
Dietary bioactive compounds benefit health while some might induce pathological processes. Parkinson’s disease (PD) is the second most common neurodegenerative disease. Braak and Hawkes hypothesized that the gastrointestinal tract may be a potential site of neuronal invasion by an “unknown pathogen” leading to some Parkinsonism. Neurotoxin botulinum or ricin can trans-synaptically transport in nervous system. Our hypothesis 1: dietary plant lectins might be responsible for the “unknown pathogen” causing PD. Pomegranate juice (PJ) have antioxidant and anti-obesity effects. Our hypothesis 2: PJ increases lifespan in C. elegans and reduces fat storage. Study 1: Post-feeding rhodamine or TRITC tagged dietary lectins …
Transatlantic Trade And Investment Partnership: Implications To Global Wine Market, Natalia Antosova
Transatlantic Trade And Investment Partnership: Implications To Global Wine Market, Natalia Antosova
LSU Master's Theses
Transatlantic Trade and Investment Partnership was first introduced in 2013, with the goal of liberalization of the trade and investments, better coordination of trade by specific regulations, enhancing intellectual property protection and lifting government’s impediments to trade. This Thesis is concerned on potential implications of the TTIP on the wine industry in the European Union and particular consequences related to EU wine producers. The literature review of this paper is developed with the purpose to bring general knowledge in the matter of the TTIP. In addition, linkages of the TTIP with the political economy are provided in the latter part …
Developing And Characterization Of Catfish Skin Hydrolysates Including Antioxidant And Antimicrobial Properties, Cesar Augusto Galindo Perez
Developing And Characterization Of Catfish Skin Hydrolysates Including Antioxidant And Antimicrobial Properties, Cesar Augusto Galindo Perez
LSU Master's Theses
Catfish skin (CS) contains considerable amount of protein that may be hydrolyzed enzymatically to generate hydrolysates (CSH) which may have antioxidant and antimicrobial properties. The generation of natural compounds with these properties is of special interest to the food industry. The objective of this study was to develop and characterize CSH including antioxidant and antimicrobial properties. CSH were produced from different enzymatic reaction periods using alkaline protease, and their characterization, antioxidant, antimicrobial, and some functional properties were evaluated. A selected CSH was analyzed for peptide composition and partial amino acid sequences. The color analysis showed that darker, more yellow, and …
Characterization Of Sulfur Chemistry In Louisiana Coastal Wetland Soils Using X-Ray Absorption Fine Structure (Xafs) Spectroscopy, Negar Dehghani Tafti
Characterization Of Sulfur Chemistry In Louisiana Coastal Wetland Soils Using X-Ray Absorption Fine Structure (Xafs) Spectroscopy, Negar Dehghani Tafti
LSU Master's Theses
Sulfur is one of the most abundant elements in the environment, which plays a vital role in the growth and functioning of plants and microorganisms. It is found in an extended variety of species in gases, liquid, and solid forms and present in various nature systems. Wetlands are one of the largest global sinks/sources of sulfur. Being existing in a variety of oxidation states, sulfur contributes to biogeochemical cycles of coastal wetlands through involving in humification processes as well as influence on metal sulfide formation and consequently, methanogenesis and greenhouse gas emission. In this study, we have evaluated sulfur chemistry …
The Effect Of Dietary Salt Intake On The Subcellular Distribution Of Epithelial Na+ Channels In Vasopressin And Oxytocin Synthesizing Neurons In The Rat Hypothalamus, Richard Frank Guidry
The Effect Of Dietary Salt Intake On The Subcellular Distribution Of Epithelial Na+ Channels In Vasopressin And Oxytocin Synthesizing Neurons In The Rat Hypothalamus, Richard Frank Guidry
Honors Capstones
No abstract provided.
Failure Of A Heterologous Recombinant Sca5/Ompb Protein-Based Vaccine To Elicit Effective Protective Immunity Against Rickettsia Rickettsii Infections In C3h/Hen Mice, Sean P. Riley, Marissa M. Cardwell, Yvonne G. Chan, Ludovic Pruneau, Fabio Del Piero, Juan J. Martinez
Failure Of A Heterologous Recombinant Sca5/Ompb Protein-Based Vaccine To Elicit Effective Protective Immunity Against Rickettsia Rickettsii Infections In C3h/Hen Mice, Sean P. Riley, Marissa M. Cardwell, Yvonne G. Chan, Ludovic Pruneau, Fabio Del Piero, Juan J. Martinez
Faculty Publications
Spotted fever group (SFG) rickettsial species are obligate intracellular tick-borne pathogens that are responsible for important human diseases. Previous reports have demonstrated the feasibility of using recombinant surface cell antigen Sca5/OmpB to elicit protective immunity against homologous challenges using murine models of Mediterranean spotted fever and Rocky Mountain spotted fever. In addition, the feasibility of generating cross-protective immunity against related rickettsial species has also been established, but the molecular basis for these phenomena was not explored. Here, we demonstrate that vaccination of C3H/HeN mice with a recombinant OmpB domain derived from Rickettsia conorii induced high titer humoral immune responses that …
Gazetteer And Site-Based History Of The Ornithology Of Sabah. Malaysian Borneo, Frederick H. Sheldon
Gazetteer And Site-Based History Of The Ornithology Of Sabah. Malaysian Borneo, Frederick H. Sheldon
Occasional Papers of the Museum of Natural Science, Louisiana State University
The gazetteer lists sites in the state of Sabah, Malaysia, where birds have been collected, studied, or watched. Its purpose is to identify locations for research and birding in Sabah and to provide a brief scientific history of the more important sites. Each site description includes latitude, longitude, and general information on location. For many sites, elevation, habitat, scientific or birdwatching importance, historical notes, citations of key papers, specimen records, and records of certain species are also included.
Louisiana Agriculture Summer, 2015, Lsu Agcenter
Louisiana Agriculture Summer, 2015, Lsu Agcenter
Louisiana Agriculture
No abstract provided.
Isolation And Characterization Of A Novel Extremely Halophilic Euryarchaeota From Hypersaline Cinders And Sediment, Shannon Mcduff
Isolation And Characterization Of A Novel Extremely Halophilic Euryarchaeota From Hypersaline Cinders And Sediment, Shannon Mcduff
Honors Capstones
No abstract provided.
Studies To Elucidate The Location And Function Of Stat5a/Pyruvate Dehydrogenase Complex In Adipocytes, Hardy Hang
Studies To Elucidate The Location And Function Of Stat5a/Pyruvate Dehydrogenase Complex In Adipocytes, Hardy Hang
Honors Capstones
No abstract provided.
Employing Extracellular Vesicles To Overcome Immunological Barriers To Aav- Mediated Gene Transfer & Ethical And Policy Implications Of Orphan Drug Development And Accessibility, Zachary Fitzpatrick
Employing Extracellular Vesicles To Overcome Immunological Barriers To Aav- Mediated Gene Transfer & Ethical And Policy Implications Of Orphan Drug Development And Accessibility, Zachary Fitzpatrick
Honors Capstones
No abstract provided.
The Influence Of Polyamines On The Hypotonic Shock Response In The Euryhaline Teleost, Fundulus Grandis, Keith Lasko
The Influence Of Polyamines On The Hypotonic Shock Response In The Euryhaline Teleost, Fundulus Grandis, Keith Lasko
Honors Capstones
No abstract provided.
Synthesis, Functionalization, And Characterization Of Metallic And Organic Nanoparticles For Biomedical Applications, Christopher Brian Sylvester
Synthesis, Functionalization, And Characterization Of Metallic And Organic Nanoparticles For Biomedical Applications, Christopher Brian Sylvester
Honors Capstones
No abstract provided.
Ph Dependence Of Dna Binding Of Dna Polymerase 1klenow-Like Fragments From D. Radiodurans, T. Aquaticus,And .E Coli, Katelyn Jackson
Ph Dependence Of Dna Binding Of Dna Polymerase 1klenow-Like Fragments From D. Radiodurans, T. Aquaticus,And .E Coli, Katelyn Jackson
Honors Capstones
No abstract provided.
A Comparison Of Nutrient Intake, Nutrient Adequacy, Diet Quality, And Obesity Prevalence In Low-Income Children (2-18 Yr) Based On Participation In The Supplemental Nutrition Assistance Program: Nhanes 2003-2010, Matthew J. Landry
Honors Capstones
No abstract provided.
Shell Matrix Protein Gene Composition In Two Marine Bivalve Species, Saxidomus Gigantea And Mytilus Trossulus., Katie Benson
Shell Matrix Protein Gene Composition In Two Marine Bivalve Species, Saxidomus Gigantea And Mytilus Trossulus., Katie Benson
Honors Capstones
No abstract provided.
Characterization Of A Novel Retrotransposon In New World Monkeys, Sreeja Sanampudi
Characterization Of A Novel Retrotransposon In New World Monkeys, Sreeja Sanampudi
Honors Capstones
No abstract provided.
Does Cognitive Stress Result Into The Contextual Interference Effect?, Andrea Taylor Moss
Does Cognitive Stress Result Into The Contextual Interference Effect?, Andrea Taylor Moss
Honors Capstones
No abstract provided.