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
File Type

Articles 7351 - 7380 of 9753

Full-Text Articles in Entire DC Network

Feeding Habits And Gut Fauna Of Zootermopsis Angusticollis (Isoptera: Termopsidae) In Response To Wood Species And Fungal Associates, M. E. Mankowski, T. D. Schowalter, J. J. Morrell, B. Lyons Jan 1998

Feeding Habits And Gut Fauna Of Zootermopsis Angusticollis (Isoptera: Termopsidae) In Response To Wood Species And Fungal Associates, M. E. Mankowski, T. D. Schowalter, J. J. Morrell, B. Lyons

Faculty Publications

Feeding preferences and consumption were evaluated to measure rate of wood consumption and the response of the gut fauna of Zootermopsis angusticollis to 4 conifers and 2 fungal species. In both choice and forced-feeding tests, exposure to Trichoderma viride Pers.:Fr. reduced consumption of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] and western hemlock [Tsuga heterophylla (Raf.) Sarg.] but did not affect noble fir (Abies procera Rehd.) or western redcedar (Thuja plicata Donn ex D. Don). Exposure to Stereum sanguinolentum Albertini & Schwein.:Fr. increased consumption of Douglas-fir but reduced consumption of western hemlock in a choice feeding test and increased consumption of Douglas-fir …

Go to article

Louisiana Agriculture Magazine, Winter 1998, Lsu Agricultural Experiment Station Jan 1998

Louisiana Agriculture Magazine, Winter 1998, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Go to article

The Pulses Of The Body Romantic Vegetarianism And Its Cultural Contexts, Timothy Morton Jan 1998

The Pulses Of The Body Romantic Vegetarianism And Its Cultural Contexts, Timothy Morton

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Go to article

Three Necessary Drugs, Simon Varey Jan 1998

Three Necessary Drugs, Simon Varey

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Go to article

Reading Burke's Rhetoric, George Mcelroy Jan 1998

Reading Burke's Rhetoric, George Mcelroy

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Go to article

Imitation And Authorship In Poems On Affairs Of State, James A. Winn Jan 1998

Imitation And Authorship In Poems On Affairs Of State, James A. Winn

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Go to article

Book Review Corner Jan 1998

Book Review Corner

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

Go to article

A Physical Model Of Warped Galaxy Disks, Kimberly C.B. New, Joel E. Tohline, Juhan Frank, Horst M. Väth Jan 1998

A Physical Model Of Warped Galaxy Disks, Kimberly C.B. New, Joel E. Tohline, Juhan Frank, Horst M. Väth

Faculty Publications

Warped H 1 gas layers in the outer regions of spiral galaxies usually display a noticeably twisted structure. This structure almost certainly arises primarily as a result of differential precession in the H I disk as it settles toward a preferred orientation in an underlying dark halo potential well that is not spherically symmetric. In an attempt to better understand the structure and evolution of these twisted, warped disk structures, we have adopted the "twist equation" formalism originally developed by Petterson to study accretion onto compact objects. Utilizing more recent treatments of this formalism, we have generalized the twist equation …

Go to article

Sex Ratio Variation Between Ejaculates Within Sire Evaluated By Polymerase Chain Reaction, Calving, And Farrowing Records, J. E. Chandler, H. C. Steinholt-Chenevert, R. W. Adkinson, E. B. Moser Jan 1998

Sex Ratio Variation Between Ejaculates Within Sire Evaluated By Polymerase Chain Reaction, Calving, And Farrowing Records, J. E. Chandler, H. C. Steinholt-Chenevert, R. W. Adkinson, E. B. Moser

Faculty Publications

Ejaculates from sires were examined by polymerase chain reaction to determine percentage of sperm bearing the Y chromosome. Results were verified by examining the percentage of male calves per ejaculate used in artificial insemination (AI) and the percentage of male piglets per litter from a controlled mating program. Spermatozoal DNA was amplified by polymerase chain reaction with specific primers for the Y chromosome. Image analysis measured the fluorescent intensity of the 194-bp band. Ejaculates were compared with a pooled standard of spermatozoal DNA equated to a 50% Y-bearing sperm ejaculate. Calving data were obtained from information collected for the National …

Go to article

Removal Of Bovine Serum Albumin From Cow's Milk Using Chicken Egg-Yolk Antibodies Immobilized On Chitosan Gel, Jack N. Losso, John Vanderstoep, Shuryo Nakai Jan 1998

Removal Of Bovine Serum Albumin From Cow's Milk Using Chicken Egg-Yolk Antibodies Immobilized On Chitosan Gel, Jack N. Losso, John Vanderstoep, Shuryo Nakai

Faculty Publications

Polyclonal chicken antibodies raised against bovine serum albumin (BSA) were immobilized on chitosan gel for the immunoaffinity isolation of BSA from cow's milk. Antibodies (IgY) against BSA were isolated from egg-yolk, purified and antibody reactivity to antigen was measured. lgY developed against BSA was reduced by 2-mercaptoethylamine. The reactivities of reduced and whole IgY against BSA were not significantly different. The reduced IgY was covalently linked to chitosan gel through stable covalent thioether linkages using sulfo-succinimidyl-4-(N-maleimidomethyl)cyclohexane-1-carboxylate (sulfo-SMCC) as a cross-linker. The density of antibody IgY immobilized on chitosan gel was approximately 3-5 mg per ml of chitosan gel. The ligand-binding …

Go to article

The Role Of Hyperinsulinemia, The Sympathetic Nervous System And Nitric Oxide In Cardiovascular Function During The Development Of Obesity-Induced Hypertension., Agatha T. Borne Jan 1998

The Role Of Hyperinsulinemia, The Sympathetic Nervous System And Nitric Oxide In Cardiovascular Function During The Development Of Obesity-Induced Hypertension., Agatha T. Borne

LSU Historical Dissertations and Theses

The interaction of hyperinsulinemia, the sympathetic nervous system (SNS) and nitric oxide (NO) was examined in lean and obese unilaterally lumbar sympathectomized dogs. Six lean and six obese dogs were studied while on a treadmill, during hyperinsulinemic euglycemic clamp (HIEC) procedures with and without concurrent nitric oxide synthase (NOS) inhibition with nitro-L-arginine (LNA). Changes in plasma insulin, femoral vascular resistance (FVR), heart rate (HR) and mean arterial pressure (MAP) were measured prior to and during a 7-week overfeeding period, and response to LNA administration was examined in the lean and obese state. Body weight increased from 19.9 $\pm$ 0.70 to …

Go to article

Effects Of Selected Polycyclic Aromatic Hydrocarbons On Cell Proliferation, Protein Phosphorylation, And Intracellular Calcium Concentration In Lepomis Macrochirus., Helen Runnels Connelly Jan 1998

Effects Of Selected Polycyclic Aromatic Hydrocarbons On Cell Proliferation, Protein Phosphorylation, And Intracellular Calcium Concentration In Lepomis Macrochirus., Helen Runnels Connelly

LSU Historical Dissertations and Theses

Polycyclic aromatic hydrocarbons (PAH) have been demonstrated to affect signal transduction in higher vertebrates. In this research, the freshwater species of fish, Lepomis macrochirus (bluegill) was used to test the effects of a 14-day diet of PAH on lymphocyte signal transduction. PAH tested included: 2-aminoanthracene (2-AA), 2-methylnaphthalene (2-MN), 9,10-dimethylanthracene (9,10-DMA), and a mixture of these three compounds (MIX). Individual compounds were tested at a total PAH dose of 3.1 $\pm$ 0.01mg over the 14 day period. The MIX diet was a total PAH dose of 0.13 $\pm$ 0.01mg 2-AA, 0.19 + 0.01mg 9,10-DMA, and 0.22 $\pm$ 0.02mg 2-MN over the …

Go to article

A Normative Study Of The Psychopathology Instrument For Mentally Retarded Adults (Pimra)., Kelley Lynne Francis Jan 1998

A Normative Study Of The Psychopathology Instrument For Mentally Retarded Adults (Pimra)., Kelley Lynne Francis

LSU Historical Dissertations and Theses

Indices were established for the Psychopathology Instrument for Mentally Retarded Adults (PIMRA) to signify that a particular score warranted further assessment. The subjects were 431 individuals with mild and moderate mental retardation in state schools and developmental centers in Texas and Louisiana. Almost 65% of the sample met the cutoff for further assessment using the newly established criteria, while approximately 40% of the sample had elevations on two or more of the subscales. Critical items were identified for the Schizophrenia, Affective Disorders, Somatoform Disorders, and Adjustment Disorders subscales. No significant differences were noted for gender with respect to the subscales. …

Go to article

The Clarity Of The Modern: Or, The Ambiguities Of Henry James And Wallace Stevens., Gregory Angelo Marks Jan 1998

The Clarity Of The Modern: Or, The Ambiguities Of Henry James And Wallace Stevens., Gregory Angelo Marks

LSU Historical Dissertations and Theses

Clarity, in all its various guises, was before the advent of Romanticism looked upon as an unquestioned focus of attention and irrefutable goal of human endeavor. Conversely, ambiguity was seen negatively: it was in language an obstacle to communication; in ethics, an indecisiveness failing action; and in ontology and aesthetics, a slovenly disorder. With Romanticism, this basic consensus regarding these terms ends. No longer an expression of censure, ambiguity is imagined as a liberatory force. Clarity, if attainable at all, is dismissed as mere rigidity. The works of Americans Henry James and Wallace Stevens embody and enact this tension and …

Go to article

Predicting Driving Ability In Alzheimer's Disease Patients., Judith Rosemary O'Jile Jan 1998

Predicting Driving Ability In Alzheimer's Disease Patients., Judith Rosemary O'Jile

LSU Historical Dissertations and Theses

Studies have shown that individuals with Alzheimer's disease have a greater number of automobile crashes than normal elderly controls. Assessment of driving ability is usually conducted by use of an on-the-road examination. These examinations are costly, time intensive, and sometimes dangerous. Finding other measures that are predictive of driving ability will enable screening of patients to decrease the number of on-road examinations. Alzheimer's disease patients and normal elderly control subjects were administered neuropsychological measures as well as the Driver Performance Test (DPT) and Driver Risk Index (DRI), both videotaped tests of driving knowledge and risk assessment. Driving histories based on …

Go to article

Development Of A Quantitative Polymerase Chain Reaction Procedure For Analysis Of Cytokine Responses To Strongylus Vulgaris In Ponies., Cyprianna Ellen Swiderski Jan 1998

Development Of A Quantitative Polymerase Chain Reaction Procedure For Analysis Of Cytokine Responses To Strongylus Vulgaris In Ponies., Cyprianna Ellen Swiderski

LSU Historical Dissertations and Theses

The effect of oral vaccination with radiation-attenuated Strongylus vulgaris larvae on the cytokine responses of ponies to oral challenge with S. vulgaris was examined. Message was quantified using RT-PCR by interpolation against a plasmid-derived standard curve. PCR product was detected using the Perkin-Elmer QPCR System 5000. Standard curves were analyzed with a two parameter exponential rise to maximum fit of the data. By altering the cycling parameters to maintain $\beta$-actin amplification within its exponential phase, $\beta$-actin was used as a normalization factor. The assay resolves 2 fold changes in message, has a linear dynamic range on the order of 3 …

Go to article

Evaluation Of The Toxicological Consequences Of Dietary Exposure To Individual Classes Of Polycyclic Aromatic Hydrocarbons Or A Mixture In The Fischer-344 Rat., Mary Durand Boudreau Jan 1998

Evaluation Of The Toxicological Consequences Of Dietary Exposure To Individual Classes Of Polycyclic Aromatic Hydrocarbons Or A Mixture In The Fischer-344 Rat., Mary Durand Boudreau

LSU Historical Dissertations and Theses

There is special concern about the potential health effects of by-products released into the environment after combustion or conversion of fossil fuels. Polycyclic aromatic hydrocarbons (PAH), while initially released largely into the atmosphere, are subsequently deposited in soil and water and on foods. Although the significance of PAH contamination with regard to environmentally caused diseases and cancer in humans is difficult to estimate, it is suggested that the potential hazards may be underestimated. In an effort to understand the potential adverse health effects of PAHs, a comprehensive study was undertaken to determine the metabolic fate of selected PAHs as individual …

Go to article

Dietary Nitrogen And Energy Metabolism In The Ruminant: Effect Of Source Of Nitrogen., Angelica Maris Chapa Jan 1998

Dietary Nitrogen And Energy Metabolism In The Ruminant: Effect Of Source Of Nitrogen., Angelica Maris Chapa

LSU Historical Dissertations and Theses

Three experiments were conducted to determine the effects of dietary nitrogen on the energy status of ruminants and the feasibility of using L-carnitine to prevent the negative effects associated with overfeeding nitrogen. The objectives of the first experiment were to monitor the nitrogen and energy status of cows grazing ryegrass pastures through the measurement of key blood metabolites and insulin and to determine the protein supplementation scheme which would maximize milk yield and maintain plasma urea nitrogen levels below dangerous levels. In the first experiment, the protein supplement that supplied excess total protein exerted negative effects on body condition and …

Go to article

Characterization Ofp53 Gene Sequence In Exons 5-8 Of The Western Mosquito Fish, Gambusia Affinis., Neeraja Kondapi Erraguntla Jan 1998

Characterization Ofp53 Gene Sequence In Exons 5-8 Of The Western Mosquito Fish, Gambusia Affinis., Neeraja Kondapi Erraguntla

LSU Historical Dissertations and Theses

Cancer is a multistage disease that involves both genetic and epigenetic factors. The number of physical and chemical agents with which human beings come in contact on a regular basis is increasing everyday. Somatic mutations can result due to such exposures and trigger uncontrolled cell division resulting in cancer. The p53 tumor suppressor gene has been identified in several vertebrate species ranging from man to fish. In addition, inactivation of p53 has been observed in a wide variety of tumors. Fish models are becoming increasingly popular for assessing environmental exposure. Low background incidence of mutations, relatively low cost tumor studies, …

Go to article

Adjective Acquisition: Developmental Changes In The Use Of The Shape Bias, Syntax, Shape Consistency, And Semantic Attributes., Lenore Carol Frigo Jan 1998

Adjective Acquisition: Developmental Changes In The Use Of The Shape Bias, Syntax, Shape Consistency, And Semantic Attributes., Lenore Carol Frigo

LSU Historical Dissertations and Theses

When learning vocabulary, children must determine the meaning of each word that they hear. In hypothesizing about word meanings, children follow certain principles that simplify vocabulary acquisition. Among these principles are several that lead children to follow a shape bias. Under the shape bias, children assume that words extend to objects that share a common shape. This shape bias is useful for learning count nouns, which often include whole-object shape as an important aspect of meaning. However, the shape bias is not useful for the development of other word classes, such as adjectives. In this study, several variables were examined …

Go to article

Clinical Laboratory Science University Faculty Learning Types And The Use Of Information Technology In The Classroom., Cynthia Susan Handley Jan 1998

Clinical Laboratory Science University Faculty Learning Types And The Use Of Information Technology In The Classroom., Cynthia Susan Handley

LSU Historical Dissertations and Theses

This study was designed to explore the status of learning types of clinical laboratory science university faculty and their use of information technology in the classroom. Traditionally clinical laboratory science education has been lecture and lab sessions. However, with the advent of the information age, professors are moving from the role of lecturer to facilitator. Some professors are in tune with the new information tools while others are not interested at all. This research had a two-fold purpose: (1) to explore who was using technology in the classroom and identify what they were using, and (2) to search for a …

Go to article

Comparative Structure And Function Of Intrinsic Gill Muscles In Freshwater Bivalve Molluscs., Scott Medler Jan 1998

Comparative Structure And Function Of Intrinsic Gill Muscles In Freshwater Bivalve Molluscs., Scott Medler

LSU Historical Dissertations and Theses

The lamellibranch gill is used for various vital functions ranging from food capture to ion regulation. The foundation for many of these functions is the transport of water through the gill. This dissertation examines the organization of intrinsic gill muscles and the associated connective tissue in the freshwater bivalve Dreissena polymorpha with comparisons made to Corbicula fluminea and Toxolasma texasensis. Gill muscles can be divided into two groups: those associated with the connective tissue sheets that underlie external and internal gill epithelia; and those encased in connective tissue bands oriented perpendicular to the bases of gill filaments. The sets of …

Go to article

Atmosphere Effects Revisited: The Effect Of Atmosphere On Judgments Of Validity Using Thematic Syllogisms., Roberta Elizabeth Love Jan 1998

Atmosphere Effects Revisited: The Effect Of Atmosphere On Judgments Of Validity Using Thematic Syllogisms., Roberta Elizabeth Love

LSU Historical Dissertations and Theses

Syllogisms having conclusions consistent with atmosphere are shown to be accepted at significantly higher rates than those having conclusions inconsistent with atmosphere. Furthermore, there is strong evidence that the dual influences of quality and quantity, independently affect acceptance rates. The first experiment also indicates a main effect of gender on acceptance rates to certain invalid syllogisms (those with conclusions inconsistent with quality, or quantity, or both). The second experiment replicates the atmosphere effect found in the first experiment and extends it to valid syllogisms and indeterminate invalids consistent with both quality and quantity. It also proposes an alternative to the …

Go to article

Characterization And Biodegradation Of Crawfish And Agricultural Processing By-Product Compost., Mounir Yehia Minkara Jan 1998

Characterization And Biodegradation Of Crawfish And Agricultural Processing By-Product Compost., Mounir Yehia Minkara

LSU Historical Dissertations and Theses

Disposal of crawfish processing wastes poses a challenging problem to the rapidly expanding crawfish industry. Co-composting is examined as a waste management alternative to landfill disposal. Wood chips, rice hulls, bagasse, and bark were evaluated for use as bulking agents in composting crawfish processing residuals. Use of bagasse as a bulking agent led to the largest reduction in volatile solids, organic-C, particle size, and compost volume. Finished compost using bagasse contained the greatest concentration of N. Self-heating patterns and decomposition of crawfish residuals were satisfactory using all four bulking agents. The finished products of all compost mixtures were stable and …

Go to article

The Effect Of Pulmonary Infection (Actinobacillus Pleuropneumoniae), Endotoxin And Dexamethasone On Enrofloxacin Pharmacokinetic Parameters In Swine., Lynn O. Post Jan 1998

The Effect Of Pulmonary Infection (Actinobacillus Pleuropneumoniae), Endotoxin And Dexamethasone On Enrofloxacin Pharmacokinetic Parameters In Swine., Lynn O. Post

LSU Historical Dissertations and Theses

Efficacy studies are often done on diseased animals while pharmacokinetic studies are done on healthy animals. Disease models are inherently difficult to standardize because of the many variables associated with measuring pharmacokinetic parameters in abnormal animals. Information derived from pharmacokinetic studies with diseased animals could be useful to determine if therapeutic doses of a drug or antimicrobial becomes less effective or toxic due to changes in distribution and clearance. The objectives of this study were to: characterize a pulmonary infection model in swine using Actinobacillus pleuropneumoniae; evaluate the pharmacokinetic changes associated with the pulmonary infection model and dexamethasone after the …

Go to article

Gaining And Controlling Access To The Arena: Stories Of Ties In A Technological Dispute., Tobias Albert Ten Eyck Jan 1998

Gaining And Controlling Access To The Arena: Stories Of Ties In A Technological Dispute., Tobias Albert Ten Eyck

LSU Historical Dissertations and Theses

This is a study of the stories told about distribution of resources and structural constraints which operate within newspaper arenas that were experienced by reporters and sources involved in coverage of food irradiation between 1987 and 1996 at two regional newspapers (Louisiana and Florida). Using an unstructured interview instrument, I conducted interviews with 40 sources and 12 newspaper reporters, which I used to construct a framework in which to show how cultural, economic and social capital are used for getting and blocking action in the newspaper arenas. These interviews show that while cultural capital was the most prominent type of …

Go to article

Autobiography From St. Augustine To David Antin: Examining The Construction Of The Self As Mutually Reflective Of Cultural Developments In Science And Technology, Art, And Literary Theory., Jessica Lynn Faust Jan 1998

Autobiography From St. Augustine To David Antin: Examining The Construction Of The Self As Mutually Reflective Of Cultural Developments In Science And Technology, Art, And Literary Theory., Jessica Lynn Faust

LSU Historical Dissertations and Theses

In this study, I look at the mutually reflective changes in society and autobiography in works definitive for their various periods: Augustine's The Confessions from antiquity; Rousseau's The Confessions from the eighteenth century; the autobiographical writings of Gertrude Stein, from the modernist period; and, most importantly here, the focus on the development of David Antin's work as representative of both postmodernism and current culture. Specifically, I consider the construction of the self in respect to art, literary theory, memory research, and science and technology. During the second half of the twentieth century, computers have permeated almost every facet of society. …

Go to article

Rousseau And The Lyric Natural: The Self As Representation., Pamela Diane Gay Jan 1998

Rousseau And The Lyric Natural: The Self As Representation., Pamela Diane Gay

LSU Historical Dissertations and Theses

Jean-Jacques Rousseau's work for the lyric stage comprises several opera libretti (Les Muses galantes and La Decouverte du nouveau monde), an intermede ( Le Devin du village), a scene lyrique ( Pygmalion) and an unfinished opera (Daphnis et Chloce ). These works use as a motif the figure of nature while continually defining and redefining, in a sort of spiral development, the self. Nature represents for Rousseau and others of his century a paradigm allowing for small segments of history to be presented as an evenly construed narrative. For Rousseau, the construction of a narrative in Le Second Discours marks …

Go to article

Computer-Assisted Instruction: Enhancements For Language-Learning Applications., William Lawrence Harrell Jr Jan 1998

Computer-Assisted Instruction: Enhancements For Language-Learning Applications., William Lawrence Harrell Jr

LSU Historical Dissertations and Theses

Presently, computer-assisted instruction is in use in many educational venues. Unfortunately, the application of computer-assisted language learning at a distance has virtually been ignored. This is an opportunity that needs to be explored. In order to do so, a number of considerations must be attended to. First, effective monitor display design is critical for the optimal presentation of distance learning material. Second, gender and equity factors that impact computer use must be understood to minimize the detrimental effects they might have on computer-assisted distance learning. Third, the needs of students involved with the particularly-demanding application of distance learning principles of …

Go to article

Autobiographical Memory In Mild And Moderate Dementia Of The Alzheimer's Type., Judith Parks Levy Jan 1998

Autobiographical Memory In Mild And Moderate Dementia Of The Alzheimer's Type., Judith Parks Levy

LSU Historical Dissertations and Theses

Alzheimer's disease (AD) is a progressive disease that particularly affects memory with difficulties starting insidiously and gradually progressing. Anterograde amnesia for semantic and episodic types of declarative knowledge becomes the most prominent and disproportionately impaired cognitive symptom. By the middle stages of the disease, this memory loss progresses to severe impairment. The neuropathology of early AD involves the hippocampal complex, which is involved in new learning and storage of recent experiences. As the disease progresses, it involves neocortical areas, which are involved in the storage of more remote memories. Participants, including minimal stage AD, mild stage AD, moderate stage AD, …

Go to article

First Prev Next Last