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Applications Of Band Ratioing At Fort Irwin, California., Alexander Wright Taylor
Applications Of Band Ratioing At Fort Irwin, California., Alexander Wright Taylor
LSU Historical Dissertations and Theses
This dissertation describes the results of two projects that demonstrate the power of band ratioing of remote sensing data. The first method, Band Ratio Differencing (BRD), challenges the more traditional techniques for detecting environmental disturbance of the surface in and terrains. These traditional techniques are inadequate because they cannot identify the nature of the change (physical, chemical, biological) or the processes (natural, anthropogenic) involved in causing the change. In contrast, BRD of Landsat TM data has the advantage of providing information about changes in the composition of alluvial surfaces. These compositional changes, when combined with empirical field data provides insight …
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 …
Effects Of Selected Polycyclic Aromatic Hydrocarbons On Cell Proliferation, Protein Phosphorylation, And Intracellular Calcium Concentration In Lepomis Macrochirus., Helen Runnels Connelly
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 …
Living Arrangements Of The Elderly In The United States: Comparing Whites, Blacks, Hispanics, And Asians' Households., Kiyomi Ando
Living Arrangements Of The Elderly In The United States: Comparing Whites, Blacks, Hispanics, And Asians' Households., Kiyomi Ando
LSU Historical Dissertations and Theses
My dissertation analyzed the living arrangements of the elderly, focusing on differences across gender and racial/ethnic lines. Drawing upon rational choice and family solidarity theoretical perspectives. I derived hypotheses dealing with the effects of individual resources, cultural characteristics, and geographic context on the elderly's living arrangements. These hypotheses were empirically tested using logistic regression models to estimate the odds of the elderly choosing from among three options of living arrangements--independent living, joint living, and dependent living. Separate models were applied to non-Hispanic white, African American, Hispanic, and Asian subsamples. Data were from the 1990 Census Public Use Sample (PUMS-L). The …
Temporal Variation In Larval Fish Condition Indices., Michael John Burger
Temporal Variation In Larval Fish Condition Indices., Michael John Burger
LSU Historical Dissertations and Theses
A sensitive methodology for the determination of RNA and DNA concentrations was developed which allowed for the quantification of nanogram amounts of both DNA and RNA. The method uses a combination of thiazole orange, a non-specific nucleic acid stain, and the RNA degrading enzyme RNase. Thiazole orange had high fluorescence yield. The fluorescence was additive for combinations of RNA and DNA. The addition of proteinase-K increased the fluorescence of the tissue sample by 100%. Recovery of nucleic acid standards added to tissue extracts yielded $\sim$100% recovery. The method is compatible with assays for protein concentration and electron transport system (ETS) …
Assessing Applicant "Fit" Within The Selection Process: Which Interviewer Perceptions Matter?, Dawn Ebe Haptonstahl
Assessing Applicant "Fit" Within The Selection Process: Which Interviewer Perceptions Matter?, Dawn Ebe Haptonstahl
LSU Historical Dissertations and Theses
The research literature has noted that organizations are moving beyond simply hiring individuals with the necessary knowledge, skills, and abilities (KSAs) that fulfill the requirements of the job--employers are also looking for people who can fit in with a particular work group or even an entire organization. This study tested an exploratory model that predicted recruiter selection decisions from their evaluations of applicants' person-job (P-J), person-group (P-G), and person-organization (P-O) fit. The model also postulated that P-G and P-O fit would be predicted by the perceived congruence (similarity) of work values between applicants and groups/organizations, Hypotheses were field-tested with 64 …
A Normative Study Of The Psychopathology Instrument For Mentally Retarded Adults (Pimra)., Kelley Lynne Francis
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. …
The Clarity Of The Modern: Or, The Ambiguities Of Henry James And Wallace Stevens., Gregory Angelo Marks
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 …
Coincidence And Class In The Victorian Novel., Beverly Maddox Moon
Coincidence And Class In The Victorian Novel., Beverly Maddox Moon
LSU Historical Dissertations and Theses
In the Victorian novels of this study, Coincidence and Class in the Victorian Novel, coincidence is an unacknowledged paradigm for class mobility. Its role for the most part unremarked, coincidence moves money and property into the hands of the protagonist, allowing the transition between classes to take place. In Charlotte Bronte's Jane Eyre and Villette, and Wilkie Collins' The Woman in White, coincidence is a paradox in that it accomplishes two very different ends, resolution and conflict, simultaneously. As a narrative device, coincidence camouflages narrative gaps, arranging resolution within the text by allowing improved class position; as a narrative strategy, …
Predicting Driving Ability In Alzheimer's Disease Patients., Judith Rosemary O'Jile
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 …
The Socialization Of Indian Scientific Writers Into Western Scientific Discourse Communities., Sumita Roy
The Socialization Of Indian Scientific Writers Into Western Scientific Discourse Communities., Sumita Roy
LSU Historical Dissertations and Theses
This research studies the socialization of Indian science writers into western discourse communities. More specifically, it seeks to identify the writing problems that beginner Indian science writers face and the strategies that they adopt in overcoming them while writing dissertations or research articles. Primary information was gathered by interviewing 11 Indian graduate students and 17 faculty members from India (West Bengal) and the USA on the basis of a five-page questionnaire. Respondents were classified into three groups according to their places of training and writing skills. Three to five sets of rough drafts from each group were studied to note …
Development Of A Quantitative Polymerase Chain Reaction Procedure For Analysis Of Cytokine Responses To Strongylus Vulgaris In Ponies., Cyprianna Ellen Swiderski
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 …
American Medusa, American Sphinx: The Female Gaze And Knowledge In Modern Fiction And Film., Janet Clare Wondra
American Medusa, American Sphinx: The Female Gaze And Knowledge In Modern Fiction And Film., Janet Clare Wondra
LSU Historical Dissertations and Theses
Two major arguments define this study, the first being that the gaze, a concept borrowed from film theory, provides a productive approach to many literary texts, whether central to the canon, like The Sound and the Fury and The Great Gatsby, or relatively new to critical attention, like Nella Larsen's Passing. Locating and following the gaze enables literary critics to bring into focus the power relations within narratives and the scopic negotiations by which hierarchies of privilege are established and maintained. Second, the study both argues and demonstrates that feminist film theory has prematurely closed important avenues of investigation by …
On The Second Stiefel-Whitney Class Of Scaled Trace Forms Of Central Simple Algebras., Rosali Brusamarello
On The Second Stiefel-Whitney Class Of Scaled Trace Forms Of Central Simple Algebras., Rosali Brusamarello
LSU Historical Dissertations and Theses
In this work we compute the second Stiefel-Whitney class $w\sb2$ of the scaled trace form $Q\sb{A,a}(x)={\bf tr}\sb{A/k}(ax\sp2),$ where A is a central simple algebra over a perfect field k of characteristic different from two, $a\in A$ is a fixed element, and ${\bf tr}\sb{A/k}$ is the reduced trace. The first three chapters provide background material about quadratic forms, central simple algebras, group cohomology, and representations of linear algebraic groups. The fourth chapter presents two known results about the second Stiefel-Whitney class of trace forms: Serre's formula for the case of etale algebras and Saltman's formula for the case of central simple …
Using Mathematical Modeling For The Prediction Of Success In Developmental Math., Kathy Rogers Autrey
Using Mathematical Modeling For The Prediction Of Success In Developmental Math., Kathy Rogers Autrey
LSU Historical Dissertations and Theses
This exploratory study was primarily designed to determine the possibility of developing a discriminant model to predict success in developmental mathematics. The sample included 402 students enrolled in a developmental math class at Northwestern State University, a small public school in North Louisiana, in the fall semester of 1996. Demographic, achievement and attitudinal variables were used in the development of the model. High school GPA, social enrichment scores from the College Student Inventory, and black were factors identified as significant in the model. Although limited in its predictive ability, the model does provide faculty and advisors with additional information to …
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
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 …
Antimycobacterial Natural Products From Higher Plants., Charles Lowell Cantrell
Antimycobacterial Natural Products From Higher Plants., Charles Lowell Cantrell
LSU Historical Dissertations and Theses
Two-hundred and thirty crude organic extracts from 118 plant species distributed among ten families of higher plants have been evaluated for antimycobacterial activity against Mycobacterium tuberculosis (H$\sb{37}$Rv) and M. avium using the BACTEC 460 radiorespirometric assay. At 100 $\mu$g/ml, twenty-four and ten of the extracts caused more than 95% inhibition of growth of M. tuberculosis and M. avium, respectively. Bioactive chromatographic fractions of Borrichia frutescens (Asteraceae) provided two new triterpenes and one known cycloartenol. In radiorespirometric bioassays against M. tuberculosis, the new (24R)-24,25-epoxycycloartan-3-one and the known (24R)-24,25-epoxycycloartan-3$\beta$-ol exhibited minimum inhibitory concentrations (MICs) of 8 $\mu$g/ml. In contrast, the new (23R)-3-oxolanosta-8,24-dien-23-ol …
Dietary Nitrogen And Energy Metabolism In The Ruminant: Effect Of Source Of Nitrogen., Angelica Maris Chapa
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 …
The Control Of Time In Renaissance England: Marlowe, Shakespeare, Jonson, And Donne., Eric C. Brown
The Control Of Time In Renaissance England: Marlowe, Shakespeare, Jonson, And Donne., Eric C. Brown
LSU Historical Dissertations and Theses
While critics have much analyzed the idea of time, they have left largely unchronicled an important Renaissance conception. Time the destroyer or devourer and time the creator or revealer of truth are familiar early modern tropes. But the inversion of this power structure--humanity not controlled by but controlling time--was equally pervasive. Especially apparent are inversions in which time is acted upon as an instrument objectified for use and abuse. Marlowe, Shakespeare, Jonson, and Donne all explore this notion of time as controllable instrument, alternately condemning or glorifying time's debasement, enfeeblement, subjugation, and manipulation. For Marlowe, the control of time manifests …
The Effects Of Gender And Race On Physician Treatment Of Patient Emotion., Vaughn A. Decoster
The Effects Of Gender And Race On Physician Treatment Of Patient Emotion., Vaughn A. Decoster
LSU Historical Dissertations and Theses
This study established theoretical and empirical foundations for the investigation into how physicians deal with (treat) patient emotion. The questions posed, "Do physicians employ specific strategies to treat patient emotion?" and "What are the effects of physician-patient social characteristics (gender and race) on emotion treatment?" Coalescing two seemingly incongruent perspectives (social constructionism and Kemper's social relational theory), I clarified the conceptual basis for the emotion management of other people. From these perspectives, I developed a three stage theory to describe and explain the physician treatment of patient emotion (triaging, diagnosing, and treatment), as well as appreciate the effects of social …
Marginal Employment In The United States: 1971-1993., Nicole Thomson Flynn
Marginal Employment In The United States: 1971-1993., Nicole Thomson Flynn
LSU Historical Dissertations and Theses
In this dissertation, I examine trends in production and the concomitant demographic transformation of the labor force, in the context a series of economic cycles since 1969. Using these three forces as a backdrop, I first consider changes in employment hardship and the forces contributing to underemployment during periods following economic recessions. Then, I examine differences between men and women for employment outcomes. Next, to explain hardship during these periods, I include important demographic and geographic factors related to underemployment. Finally, I examine the impact of labor market context on individual outcomes. Based on the transformation of work, I explain …
Characterization Ofp53 Gene Sequence In Exons 5-8 Of The Western Mosquito Fish, Gambusia Affinis., Neeraja Kondapi Erraguntla
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, …
The Optimal Implementation Of On-Line Optimization For Chemical And Refinery Processes., Xueyu Chen
The Optimal Implementation Of On-Line Optimization For Chemical And Refinery Processes., Xueyu Chen
LSU Historical Dissertations and Theses
On-line optimization is an effective approach for process operation and economic improvement and source reduction in chemical and refinery processes. On-line optimization involves three steps of work as: data validation, parameter estimation, and economic optimization. This research evaluated statistical algorithms for gross error detection, data reconciliation, and parameter estimation, and developed an open-form steady state process model for the Monsanto designed sulfuric acid process of IMC Agrico Company. The plant model was used to demonstrate improved economics and reduced emissions from on-line optimization and to test the methodology of on-line optimization. Also, a modified compensation strategy was proposed to improve …
Adjective Acquisition: Developmental Changes In The Use Of The Shape Bias, Syntax, Shape Consistency, And Semantic Attributes., Lenore Carol Frigo
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 …
Using Academic And Demographic Variables To Predict Success In The General Education Curriculum., Steven Giles Horton
Using Academic And Demographic Variables To Predict Success In The General Education Curriculum., Steven Giles Horton
LSU Historical Dissertations and Theses
Student success and attrition in all levels of education is becoming a more important issue in an age where education dollars are diminishing while various schools of higher learning are increasing. As a result, schools are reevaluating their current programs of study in an attempt to determine if both students and universities are fulfilling their respective goals. This process of reevaluation has several fundamental considerations, one of these which is addressed in this study--the effectiveness of prerequisite requirements and other demographic variables on predicting the success of students in courses in the general education curriculum. The purpose of this study, …
Clinical Laboratory Science University Faculty Learning Types And The Use Of Information Technology In The Classroom., Cynthia Susan Handley
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 …
Leadership In Effective Middle Schools: A Shared Or Solitary Activity., Robin Frances Garrett Jarvis
Leadership In Effective Middle Schools: A Shared Or Solitary Activity., Robin Frances Garrett Jarvis
LSU Historical Dissertations and Theses
The primary purpose of this study was to identify and examine patterns of leadership within effective middle schools. A three phase research methodology including both quantitative and qualitative techniques was utilized. Phase I of the study involved the development of the Faculty Involvement Survey. Phase II was conducted with a sample of 46 differentially effective 6th-8th grade middle schools in Louisiana. Data collection for this phase consisted of the administration of the Faculty Involvement Survey which was aimed at determining the instructional leadership structure of the school. Four leadership patterns ranging from principal only to overall faculty involvement were identified. …
Secondary Control: Examining The Influence Of School Restructuring On High School Delinquency., Michael O. Maume
Secondary Control: Examining The Influence Of School Restructuring On High School Delinquency., Michael O. Maume
LSU Historical Dissertations and Theses
Recent years have seen extensive debate on the multitude of problems plaguing secondary education in the United States, and the problem of school crime and deviance is gaining a sizable share of the attention. A wave of school reform sometimes labeled the "restructuring" movement suggests that major organizational changes in schools, especially public schools, can positively affect student achievement and commitment to educational goals. Yet there has been practically no attention paid to the possible effects of restructuring on reducing delinquency in schools. I examine the impact of high school restructuring on school delinquency using a broad conception of delinquency …
Comparative Structure And Function Of Intrinsic Gill Muscles In Freshwater Bivalve Molluscs., Scott Medler
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 …
Color Measurement And Reflectance Spectroscopy Of Total Suspended Solids For Remote Sensing And Environmental Monitoring Of Aquatic Ecosystems., Dean Leslie Muirhead
Color Measurement And Reflectance Spectroscopy Of Total Suspended Solids For Remote Sensing And Environmental Monitoring Of Aquatic Ecosystems., Dean Leslie Muirhead
LSU Historical Dissertations and Theses
Water color and water quality are related in complex and poorly understood ways. Suspended particulates, such as phytoplankton, bacteria, and soil particles, contribute significantly to the color and quality of natural water bodies by absorbing and scattering sunlight. There is currently no standard method to measure the color and optical properties of total suspended solids (TSS). Remote sensing algorithms estimate TSS concentrations from observed values of reflectance. There are spectral differences in TSS over time and space. A convenient, inexpensive, and quick method is developed and evaluated to quantify optical differences between different TSS. The technique links the traditional TSS …