Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1358)
- Arts and Humanities (841)
- Social and Behavioral Sciences (660)
- Physical Sciences and Mathematics (597)
- Agriculture (353)
-
- Engineering (319)
- Medicine and Health Sciences (312)
- Animal Sciences (296)
- Environmental Sciences (228)
- Veterinary Medicine (207)
- Philosophy (175)
- Biology (165)
- Psychology (150)
- Aesthetics (148)
- Chemistry (144)
- Plant Sciences (130)
- Education (113)
- Oceanography and Atmospheric Sciences and Meteorology (113)
- Communication (109)
- Fine Arts (109)
- English Language and Literature (102)
- Entomology (98)
- Veterinary Pathology and Pathobiology (96)
- Music (95)
- Civil and Environmental Engineering (84)
- History (80)
- Ecology and Evolutionary Biology (79)
- Anthropology (74)
- Sociology (74)
- French and Francophone Language and Literature (60)
- Keyword
-
- Biology (466)
- Agriculture (355)
- Education (164)
- Psychology (161)
- Literature (126)
-
- General (110)
- Chemistry (105)
- Animal culture and nutrition (96)
- Louisiana (94)
- Microbiology (87)
- Zoology (82)
- Animal physiology (78)
- Obesity (72)
- Clinical (69)
- Food science and technology (67)
- Ecology (57)
- Health sciences (56)
- Inflammation (52)
- Climate change (51)
- Yearbook (49)
- Louisiana Agricultural Experiment Station. (48)
- Biochemistry (47)
- Engineering (47)
- History (42)
- Agricultural (41)
- Entomology (41)
- Faculty senate (41)
- Veterinary science (41)
- Cryopreservation (40)
- Language (38)
- Publication Year
- Publication
-
- Faculty Publications (2609)
- LSU Historical Dissertations and Theses (1929)
- LSU Master's Theses (1807)
- LSU Doctoral Dissertations (1577)
- Honors Capstones (379)
-
- LSU Agricultural Experiment Station Reports (347)
- Louisiana Agriculture (220)
- Division of Basic Science Faculty Publications (156)
- 1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era (147)
- Civil War Book Review (92)
- Clinical Research Faculty Publications (88)
- LSU General Catalog (51)
- LSU Faculty Senate Publications (42)
- Gumbo Yearbook (36)
- Population and Public Health Science Faculty Publications (33)
- Taboo: The Journal of Culture and Education (26)
- Louisiana Summary: Agriculture and Natural Resources (17)
- Distinguished Undergraduate Researcher Program (14)
- LSU AgCenter Bulletins (14)
- Research Matters & RNR Newsletters (14)
- Cenobium Yearbook (13)
- Student Senate Enrolled Legislation (12)
- Comparative Woman (11)
- LSU Press Seasonal Catalogs (11)
- Research Magazine (11)
- Components (10)
- Friends of the LSU Libraries (10)
- Tête à Tête: Journal of Francophone Studies (10)
- Horticulture Hints (8)
- The Journal of Balanced Literacy Research and Instruction (8)
- Publication Type
- File Type
Articles 6481 - 6510 of 9772
Full-Text Articles in Entire DC Network
The Effects Of Nutrient Enrichment On The Decomposition Of Belowground Organic Matter In A Sagittaria Lancifolia - Dominated Oligohaline Marsh, Kristen Raye Laursen
The Effects Of Nutrient Enrichment On The Decomposition Of Belowground Organic Matter In A Sagittaria Lancifolia - Dominated Oligohaline Marsh, Kristen Raye Laursen
LSU Master's Theses
Wetlands improve water quality through sedimentation and the uptake of excess nutrients. As human population increases in the coastal zone, wetlands receive greater nutrient inputs. These additional nutrients may accelerate microbial activity, leading to faster decomposition rates. This decomposition could exceed belowground organic matter production, resulting in a net reduction in soil organic matter accumulation and vertical marsh accretion. The effects of nutrient enrichment on belowground organic matter decomposition in subtropical marshes have received little attention. As such, this research examined the effects of four levels of nitrogen combined with two levels of phosphorus enrichment on belowground decomposition through the …
Accelerating The Transition To A Sustainable Society, Christopher Brian Bennett
Accelerating The Transition To A Sustainable Society, Christopher Brian Bennett
LSU Master's Theses
As human populations increase, available land and resources decrease, and we begin to better understand the impacts of human activity on the environment, a strategy for human development that meets both the needs of society and the environment is being increasingly called upon. This movement has come to be known as sustainability. While this term is prevalent in the design and planning communities, it is important that this concept be brought to the attention of the general public, whom will ultimately decide the success or failure of this scheme. The question then is how to begin implementation of sustainable practices, …
B.S., Michael P. Redmond
B.S., Michael P. Redmond
LSU Master's Theses
This is a novel about a hack of a novelist who guides a fraud of a novelist around an allegorical version of the United States of America. It tests the limits of its readers’ patience with irony and metafiction. Themes that are explored, mocked, and then explored again include belief, identity, reality, geography, the intersections of the aforementioned, and the comical futility of such exploration. Abandon all hope, ye who enter here.
Mortality Of Pen-Raised White-Tailed Deer (Odocoileus Virginianus) Released On Three Areas In Louisiana, Barret Keith Fortier
Mortality Of Pen-Raised White-Tailed Deer (Odocoileus Virginianus) Released On Three Areas In Louisiana, Barret Keith Fortier
LSU Master's Theses
I monitored 60 radio-collared and tagged pen-raised white-tailed deer (Odocoileus virginianus) to ascertain mortality rates on three areas in Louisiana from April 2001 - April 2002. Two of 60 were not used in the analysis because mortality occurred from complications with darting and an affixed radio-collar. Study deer were exposed to legal hunting mortality only if they emigrated from the three study areas. Twenty deer were released to the wild on the Louisiana State University Deer Study Area (LSUDSA) (4,810 ha), where 9 of 20 (45%) suffered mortality. Harvest accounted for 56%, vehicles 22%, and other 22% of the mortality …
"Don't Pooh-Pooh Our Poo Poo": Penalty, Subsidy, And Refusal To Fund In The Aftermath Of National Endowment For The Arts V. Finley, James Gaddy
LSU Master's Theses
Legal scholars said the National Endowment for the Arts v. Finley decision would create a "chilling effect" in government subsidy programs, and it unlawfully expanded the government speech doctrine. By analyzing cases that subsequently use Finley for a substantive part of their rationale, this article argues the opposite: the courts have rejected the government's attempts to interpret the decision as one that allows viewpoint discrimination and have not allowed the government to further a broad reading of the decision. The article also argues that, under the government speech doctrine, Finley provides the controlling precedent for truly "hybrid speech" cases where …
Feeding Ecology And Morphometric Analysis Of Paddlefish, Polyodon Spathula, In The Mermentau River, Louisiana, Nicole Adele Smith
Feeding Ecology And Morphometric Analysis Of Paddlefish, Polyodon Spathula, In The Mermentau River, Louisiana, Nicole Adele Smith
LSU Master's Theses
Little is known about the morphometrics and the feeding ecology of paddlefish in Louisiana. I examined the morphometrics and feeding ecology of paddlefish from the Mermentau River, Louisiana from March 2002 to February 2003. Paddlefish were examined morphometrically by taking measurements of eye-fork length (EFL), body cavity length (BCL), girth (G), vent girth (VG), mouth vertical (MTB), mouth horizontal (MSS), and mouth gullet bottom (MGB) to determine which parameters would give a better estimate of weight (W). Regression analysis resulted in a morphometric model of the form: logW = 10.10 + 1.52 (logEFL) + 1.21 (logG) + 0.24 (logVG) (r2 …
Tyranny, Natural Law, And Secession, Geoffrey Plauche
Tyranny, Natural Law, And Secession, Geoffrey Plauche
LSU Master's Theses
This thesis is an examination of the problem of tyranny from the perspective of radical libertarianism. History is to be seen as a race and conflict between liberty and power. After a brief introduction, the second section of this thesis is devoted to sketching out a natural law and natural rights theory. With this as the foundation, the third section analyzes the seminal work of Étienne de la Boétie’s The Discourse of Voluntary Servitude in which he elucidates the nature of tyranny and the psychology of subjection. All governments, even the worst tyranny, rest upon general popular acceptance. Religious and …
Fecal Steroid Excretion Of Rats Fed Rice Bran Oil And Oryzanol, Zhaoli Dai
Fecal Steroid Excretion Of Rats Fed Rice Bran Oil And Oryzanol, Zhaoli Dai
LSU Master's Theses
Rice bran oil (RBO) has been considered healthy cooking oil with potent effects to reduce the risks of atherosclerosis and coronary heart disease. The relatively high level of unsaponifiable components contributes to the healthy benefits of RBO. This study investigated the possibility that the cholesterol-lowering effects of oryzanol are through increased fecal steroid excretion. The objective was to compare fecal cholesterol and bile acid excretion as well as bioavailability among different forms of oryzanol. The correlation between bioactivity and bioavailability of oryzanol was investigated as well. Forty-seven female breeder rats were used as animal models. Oryzanol was added to an …
Methods To Induce Earlier Onset Of Cyclicity In Transitional Mares, Abdulhakeem Hashim Aljarrah
Methods To Induce Earlier Onset Of Cyclicity In Transitional Mares, Abdulhakeem Hashim Aljarrah
LSU Master's Theses
The purpose of this study was to investigate methods to induce earlier onset of cyclicity in transitional mares. Two experiments were conducted evaluating the effect of follicular aspiration to advance the onset of cyclicity, more succinctly define criteria for selection of mares for follicular aspiration and to compare aspiration to deslorelin treatment for initiating cyclicity in transitional mares. In Experiment 1, anestrous mares were assigned to control (n=6) or follicular aspiration (n=11). The control mares were monitored twice weekly, until ovulation was detected. The aspiration mares were similarly monitored until a follicle >35 mm was identified, then transvaginal ultrasound guided …
The Fate Of Bifenthrin And Fipronil In Pine Bark Nursery Media, Russell Stanley Harris, Iii
The Fate Of Bifenthrin And Fipronil In Pine Bark Nursery Media, Russell Stanley Harris, Iii
LSU Master's Theses
Concerns over the adverse effects of pesticides on human health and the environment have led to the development of stricter pesticide regulations and the outright banning of many pesticides in the U.S. Bifenthrin and fipronil are important pesticides used in the nursery industry for the control of imported fire ants (Solenopsis invicta Buren, S. richteri Forel, and their hybrids) to meet the requirements of the Imported Fire Ant Quarantine. Nurseries typically use highly-organic media ("soilless" media) and little is known about the fate of these pesticides when used with these media. Our research measured the influence of irrigation frequency and …
Evolution Of Base Substitution Gradients In Primate Mitochondrial Genomes, Sameer Raina
Evolution Of Base Substitution Gradients In Primate Mitochondrial Genomes, Sameer Raina
LSU Master's Theses
The availability of large amounts of genetic data from the mitochondrial DNA of species has created an unprecedented opportunity for the study of evolutionary processes. Being our closest relatives on the evolutionary tree the primates are a prime candidate for the study of evolutionary processes. The availability of large amounts of genetic data from the primates allows us to study and compare results from different phylogenetic reconstruction methods and to study and trace rudimentary evolutionary processes within the primate lineage. The evolutionary process studied here is the response of the nucleotide frequency ratios to single-strandedness of sites during mitochondrial DNA …
Impact Of Static Flexion Duration On The Development Of A Neuromuscular Disorder Of The Lumbar Spine, Rebecca Victoria Labry
Impact Of Static Flexion Duration On The Development Of A Neuromuscular Disorder Of The Lumbar Spine, Rebecca Victoria Labry
LSU Master's Theses
Many occupational groups work under adverse conditions in which their spinal columns are fully flexed under load for substantial periods of time. This study was designed to determine the response of the lumbar spine to a static load of a substantial duration under a range of load magnitudes. The impact of static loads of 20, 40 and 60N were applied over 30 min flexion, 10 min rest, and 30 min flexion (for a total of one hour exposure) followed by a 7 h rest. Lumbar viscoelastic creep (laxity) and reflex electromyographic (EMG) activity were monitored over both flexion periods and …
Food Safety Knowledge And Practices Of Food Recovery Agency Workers Before And After Food Safety Training, Sara Katherine Waggoner
Food Safety Knowledge And Practices Of Food Recovery Agency Workers Before And After Food Safety Training, Sara Katherine Waggoner
LSU Master's Theses
Many food recovery agencies depend on donated food, and its safety is critical for the health of vulnerable populations. A food safety curriculum was developed for agency volunteers and paid staff of the Lower Mississippi Delta region. Examples of topics in the curriculum included: personal hygiene, food storage, transporting food safely, and HACCP. Food Safety Knowledge Pre- and Posttests (20 questions) were identical, and validity and reliability were established prior to use. Paired t-tests were performed to determine the effectiveness of the curriculum (n=190). A Food Safety Practices Survey (10 questions) demonstrating attitudes and behaviors regarding food safety practices in …
The Myth Of Eternal Preservation: Patterns Of Damage In Egyptian Mummies, Ellen Salter-Pedersen
The Myth Of Eternal Preservation: Patterns Of Damage In Egyptian Mummies, Ellen Salter-Pedersen
LSU Master's Theses
Mummification can preserve a body for several millennia, but it is a popular misconception that these bodies are in pristine condition. The activities of tomb robbers, archaeological excavation and transportation, and the embalming process itself may damage the body. This thesis examines published reports on Egyptian mummies from museums in the United States, Europe, and Egypt for the presence of osteological fractures, dislocations and other related damage. These reports include biographical information and the results of investigations made by one or more of the following techniques: unwrapping, autopsying, x-raying, and CT-scanning. Data on 275 Egyptian mummies were collected and examined …
"Never Could Read No Road Map": Geographic Perspectives On The Grateful Dead, Daniel R. Culli
"Never Could Read No Road Map": Geographic Perspectives On The Grateful Dead, Daniel R. Culli
LSU Master's Theses
The Grateful Dead hold a unique niche in the musical, social, and cultural history of the United States. However, while the volume of available academic literature concerning the band is increasing, the Grateful Dead remain to be nearly ignored by academia and, to this point apparently, completely ignored by cultural geographers. This paper introduces the Grateful Dead into the field of geography. I analyze the geography of certain aspects of the band, such as its context in San Francisco, the carnival atmosphere of the entire phenomenon, the over 2300 tour dates, as well as the huge catalog of lyrics sung …
Design And Development Of A Process Control Temperature System For Eastern Oyster Crassostrea Virginica Research, Praveen Kolar
Design And Development Of A Process Control Temperature System For Eastern Oyster Crassostrea Virginica Research, Praveen Kolar
LSU Master's Theses
A process-control temperature system was designed and developed for facilitating somatic cell research on eastern oyster Crassostrea virginica. The system consisted of sixteen independent tanks capable of individual temperature regimes controlled by a central computer. Food grade 250-L tanks were used to hold 60 oysters per tank. Each tank was equipped with heating and cooling mechanisms. Immersion heaters were used for heating and a pump and a stainless steel heat exchangers immersed in chilled water (~ 7°C) were used for cooling. Type-T thermocouples along with a CIOEXP32 multiplexer board (Measurement Computing Inc.) were used to measure water temperatures. Control was …
Phylogenetic Influence Of Complex, Evolutionary Models: A Bayesian Approach, Neeraja M. Krishnan
Phylogenetic Influence Of Complex, Evolutionary Models: A Bayesian Approach, Neeraja M. Krishnan
LSU Master's Theses
Molecular evolution recovers the history of living species by comparing genetic information, exploring genome structure and function from an evolutionary perspective. Here we infer substitution rates and ancestral reconstructions, to better understand mutation responses to some known biochemical phenomena. Mutation processes are commonly inferred using parsimony, maximum likelihood and Bayesian. Parsimony is not explicitly model-based, and is statistically biased due to unrealistic assumptions. The model-based maximum likelihood approaches become computationally inefficient while analyzing large or high-dimensional datasets, leaving little opportunities to incorporate complex evolutionary models. We implemented a posterior probability (Bayesian) approach that evaluates evolutionary models, applying it to primate …
Comparison Studies Of The Mechanistic Formation Of Polyhalogentaed Dibenzo-P-Dioxins And Furans From The Thermal Degradation Of 2-Bromophenol And 2-Chlorophenol, Catherine Spearing Evans
Comparison Studies Of The Mechanistic Formation Of Polyhalogentaed Dibenzo-P-Dioxins And Furans From The Thermal Degradation Of 2-Bromophenol And 2-Chlorophenol, Catherine Spearing Evans
LSU Doctoral Dissertations
Emissions of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) and polybrominated dibenzo-p-dioxins and furans (PBDD/Fs) from hazardous waste incinerators, and many other sources for combustion have been considered environmentally hazardous and a major health threat. Recently, a growing number of materials containing brominated hydrocarbons, commonly used flame retardants, have been disposed in municipal and hazardous waste incinerators. This results in the increased potential for formation of PBDD/Fs and other hazardous combustion by-products. In contrast to chlorinated hydrocarbons, the reactions of brominated hydrocarbons have been studied only minimally. In fact, studies have shown that brominated phenols form higher yields of PBDD/Fs than the …
Ctp: Phosphoethanolamine Cytidylytransferase And Dag: Cdp-Ethanolamine Ethanolaminephosphotransferase In The Cdp-Ethanolamine Pathway Of Chlamydomonas Reinhardtti, Wenyu Yang
LSU Doctoral Dissertations
Chlamydomonas reinhardtii Dangeard does not have two major phospholipids, PS and PC. This fact renders C. reinhardtii a desirable system for investigations of the PE biosynthetic pathway and its regulation independent of PC and PS biosynthesis. The cDNA coding for ECT protein in C. reinhardtii was cloned from a cDNA library. The ECT cDNA encodes a protein of 443 amino acid residues. The ECT protein in C. reinhardtii has a repetitive internal sequence in its N- and C-terminal halves. Each repeat half of the protein has a HXGH motif, a site considered to be in the catalytic domain. The protein …
Faunal Succession Of Necrophilous Insects Associated With High-Pofile Wildlife Carcasses In Louisiana, Erin Jean Grindley Watson
Faunal Succession Of Necrophilous Insects Associated With High-Pofile Wildlife Carcasses In Louisiana, Erin Jean Grindley Watson
LSU Doctoral Dissertations
The same entomological criteria used in estimating time of death for humans are applicable for deceased wildlife. Necrophilous insects associated with animal carcasses can provide wildlife law enforcement with valuable information necessary for postmortem interval estimation, and ultimately, to incriminate poachers. The purpose of this research was twofold: to establish species composition, faunal succession patterns, and species and life stage interactions of necrophilous insects associated with three wildlife species; and to identify new methods of evaluating succession patterns using statistical measures. Twenty-one large vertebrate carcasses were monitored throughout decomposition in a mixed flatwood forest in East Baton Rouge Parish, LA …
Rates Of Molecular Evolution And Their Application To Neotropical Avian Biogeography, Christopher C. Witt
Rates Of Molecular Evolution And Their Application To Neotropical Avian Biogeography, Christopher C. Witt
LSU Doctoral Dissertations
The tempo of evolution and the causes of rate variation among lineages are central foci of evolutionary biology. I evaluated two hypothesized sources of variation in molecular evolutionary rate, and I applied a variable molecular clock to estimate the timescale of diversification in three families of Neotropical birds. First, I examined the phylogenetic evidence for molecular punctuated equilibrium, the hypothesis that speciation drives accelerated molecular evolution. Recent findings that rates of DNA evolution and speciation are linked implicate molecular punctuated equilibrium as an important cause of rate variation among lineages. I used phylogenetic simulations to test this reported link, and …
William Faulkner And The Oral Text, Gregory Alan Borse
William Faulkner And The Oral Text, Gregory Alan Borse
LSU Doctoral Dissertations
The disjunction between the oral and the literate in the works of William Faulkner reveals the different ways these distinct modes of organization combine to structure a text. The oral in Faulkner's fiction makes its presence known not only as offset speech but also as a mode of action and narrative whose logic is conjunctive rather than disjunctive. According to the literate mode, a form organizes novelistic matter. According to the oral mode, forces that function as signs rather than organizers of their form rule the action and narrative. When the disjunction between the oral and the literate is so …
Storytelling From The Margins: The Healing Narratives Of J. California Cooper, Cynthia Downing Bryant
Storytelling From The Margins: The Healing Narratives Of J. California Cooper, Cynthia Downing Bryant
LSU Doctoral Dissertations
This study examines the therapeutic qualities of selected short stories and novels by contemporary African American woman writer, J. California Cooper. Specifically, I examine the manner in which Cooper's texts can be appreciated as "healing narratives." Healing narratives, as defined in this study, are those texts in which the author consciously creates fictitious representations of reality, while employing the concept of hope as a central and guiding factor. Those aspects of the narrative that have the ability to heal or "lay hands on" a reader vary because the effectiveness of the story depends upon how well the reader can identify …
Development Of Chicken Polyclonal And Mouse Monoclonal-Based Enyzyme Immunoassays For The Detection Of Β-Cyclocitral In Catfish Pond Water, Cate Nakaweesa Munene
Development Of Chicken Polyclonal And Mouse Monoclonal-Based Enyzyme Immunoassays For The Detection Of Β-Cyclocitral In Catfish Pond Water, Cate Nakaweesa Munene
LSU Doctoral Dissertations
The Catfish industry faces a problem of off-flavors due to odorous compounds produced by cyanobacteria and blue-green algae. Beta-Cyclocitral imparts a hay-woody odor to pond water and fish tissues. At present there are no reliable pond treatment methods available to control these off-flavors. To monitor the levels of this compound for quality control, rapid, sensitive and inexpensive methods are needed. The major goal of this study was to develop enzyme-linked immunoflow assays based on monoclonal and polyclonal antibodies that are specific and sensitive enough to detect beta-cyclocitral in catfish pond water. Beta-Cyclocitral-PPD conjugate was prepared and used to immunize two …
The Diagnosis Of Dementia In Persons With Mental Retardation: Validating Methods Of Assessment, Joanne Bielecki
The Diagnosis Of Dementia In Persons With Mental Retardation: Validating Methods Of Assessment, Joanne Bielecki
LSU Doctoral Dissertations
The usual assessment instruments for the diagnosis of dementia are often difficult to use among individuals with mental retardation. This study investigates whether a modified method based on Visser et al. (1997) can identify a dementing process. Ninety individuals diagnosed with severe and profound mental retardation were studied. One half of the participants were diagnosed with Down's syndrome. The participants were equally assigned to one of three groups based on perceived risk of dementia. A differential prevalence design was used. Both cross sectional and longitudinal analyses were utilized in this study. Results indicate that the Visser et al. (1997) method …
Seasonal Occurrence Of Phyllophaga Species And Biological Studies Of Phyllophage Ephilida (Say) On Sweet Potato, Ipomoea Batatas (L) Lam, In Louisiana, Aboubacar Diagne
Seasonal Occurrence Of Phyllophaga Species And Biological Studies Of Phyllophage Ephilida (Say) On Sweet Potato, Ipomoea Batatas (L) Lam, In Louisiana, Aboubacar Diagne
LSU Doctoral Dissertations
The biology of Phyllophaga ephilida (Say) was studied in Louisiana with both laboratory and field experiments from 1998 through 2003. The seasonal occurrence of common adult Phyllophaga species in sweet potato growing areas was surveyed with blacklight traps. P. ephilida and P. crinita (Burmeister) were the most common species at all locations. The attractiveness of seven methyl esters of L-isoleucine and L-valine blends to P. ephilida males was evaluated in sweet potato fields in 1999 and 2000. The 100% methyl ester of L-isoleucine was significantly more attractive than all other blend ratios that were tested. The life cycle of P. …
Optimization Of Agrobacterium Mediated Cotton Transformation Using Shoot Apices Explants And Quantitative Trait Loci Analysis Of Yield And Yield Component Traits In Upland Cotton (Gossypium Hirsutum), Baogong Jiang
LSU Doctoral Dissertations
Cotton (Gossypium spp) is an important world crop. Although great improvements have been achieved through traditional breeding methods, cotton breeders are facing many problems, i.e., narrow genetic base, inability to use alien genes and difficulty in breaking gene linkages. Genetic transformations and quantitative trait loci (QTL) analyses are main tools used by breeders to overcome these problems. In this dissertation, an optimized cotton regeneration system from shoot apices was developed. The regeneration rate was increased to 85% by combining rooting induction, indole acetic acid (IAA) shock and graft techniques. The regeneration system is genotype-independent and the whole process takes 12 …
The Use Of Altrenogest To Control Reproductive Function In Beef Cattle, Clarence Edward Ferguson
The Use Of Altrenogest To Control Reproductive Function In Beef Cattle, Clarence Edward Ferguson
LSU Doctoral Dissertations
There has been great controversy involving progesterone (P4) levels during early pregnancy in cattle. The objectives of these experiments were to determine the effect of an early low dose administration of P4 or altrenogest (ALT) on pregnancy rates in repeat breeder (RPB) females, if an increase in pregnancy rates could result from a direct effect of P4 on the embryo and if ALT could support pregnancy in the absence of a functional CL. Firstly, ALT was evaluated for use as a progestin in cattle by synchronizing estrus in beef heifers. There were no differences in the …
Dna Binding Properties Of Histone-Like Protein Hu From Deinoccus Radiodurans Suggest Involvement In Dna Recombination, Sharmistha Ghosh
Dna Binding Properties Of Histone-Like Protein Hu From Deinoccus Radiodurans Suggest Involvement In Dna Recombination, Sharmistha Ghosh
LSU Doctoral Dissertations
The Histone-like protein HU is ubiquitous in eubacteria. Usually with a length of ~90 amino acids, they are predominantly homodimeric, with sequence and structural homology. Escherichia coli HU is involved in DNA repair and recombination. The crystal structure of Anabaena HU shows that it binds DNA with prolines intercalating into the DNA backbone, introducing two kinks at a spacing of 9 bp and bending the DNA through a variable angle of 105-140°. Deinococcus radiodurans is a gram positive mesophile, capable of reconstituting its genome from 1000-2000 double strand breaks incurred due to exposure to environmental extremes. In the first study, …
Influence Of The Marsh Edge On The Structure And Trophic Ecology Of The Fish And Macroinvertebrate Community In A Louisiana Estuarine Ecosystem, Guillermo Duque
Influence Of The Marsh Edge On The Structure And Trophic Ecology Of The Fish And Macroinvertebrate Community In A Louisiana Estuarine Ecosystem, Guillermo Duque
LSU Doctoral Dissertations
Habitat degradation of saltmarsh ecosystems reduces the suitability of the marsh as permanent environments for resident species and seasonal nursery grounds for transient fauna. This study was conducted in Terrebonne-Timbalier bays near Cocodrie, Louisiana. Fishes and macroinvertebrates were collected using a drop sampler in marsh-edge and open-water habitat types, in three locations (i.e., pond, channel, and bay), and four seasons (Fall of 2000, Winter of 2000-2001, and Spring and Summer of 2001). The specific objectives of this study were: (1) to determine the difference in composition and structure of fish and macroinvertebrate communities, (2) to establish the food habits of …