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1996

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Pilot-Scale Solvent Sublation For The Removal Of Hydrophobic Compounds From Wastewaters., Jeffrey Scott Smith Jan 1996

Pilot-Scale Solvent Sublation For The Removal Of Hydrophobic Compounds From Wastewaters., Jeffrey Scott Smith

LSU Historical Dissertations and Theses

Solvent sublation is a nonfoaming adsorptive bubble process which exploits the surface active nature of organic compounds in their removal from aqueous systems. Gas bubbles are introduced into an aqueous media and are buoyed upward to an immiscible organic solvent. As the bubbles rise, organic materials are selectively adsorbed from the aqueous phase and transported to the overlying, quiescent solvent layer. This dissertation studied three-phase, continuous solvent sublation of pyrene and pentachlorophenol from simulated wastewater at the pilot-scale. Steady-state removal efficiencies as high as 96% for pyrene and 94% for pentachlorophenol were demonstrated and were significantly greater than the corresponding …

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The Role Of Seed Banks, Disturbance, And Sea Level Rise In Determining The Plant Community Structure Of Oligohaline Coastal Marshes., Andrew Hamilton Baldwin Jan 1996

The Role Of Seed Banks, Disturbance, And Sea Level Rise In Determining The Plant Community Structure Of Oligohaline Coastal Marshes., Andrew Hamilton Baldwin

LSU Historical Dissertations and Theses

Coastal wetlands worldwide are threatened by sea level rise, which is expected to affect the growth and survival of wetland vegetation by increasing water level and salinity. While the effects of salinity and inundation on adult vegetation of oligohaline marshes have been widely studied, the species composition of the seed bank and its response to elevated salinity and water level have not been examined. Additionally, the role of disturbances of different intensities in structuring marsh plant communities and possible interactions between disturbance and rising sea level have received little attention. Disturbances in coastal marshes include nonlethal disturbances such as fire …

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The Impact Of Total Sleep Deprivation On Neuropsychological Functioning., Paul Gale Binks Jan 1996

The Impact Of Total Sleep Deprivation On Neuropsychological Functioning., Paul Gale Binks

LSU Historical Dissertations and Theses

Extended sleep deprivation has been shown to produce impairments in sustained attention and vigilance, especially if the deprivation period is greater than 48 hours. However little is known about the effects of sleep deprivation on performance of cognitive tasks considered to be measures of higher cortical functioning such as cognitive flexibility and the capacity to shift response set. These two activities are associated with intact functioning of the frontal lobes of the cerebral cortex while attention and vigilance tasks are not considered to be part of this type of cognitive activity and are not associated with frontal lobe function. One …

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The Relationship Of Hemolymph Sugar, Juvenile Hormone And Biogenic Amines To The Three Behavioral States Of Mature Honey Bees., Janko Bozic Jan 1996

The Relationship Of Hemolymph Sugar, Juvenile Hormone And Biogenic Amines To The Three Behavioral States Of Mature Honey Bees., Janko Bozic

LSU Historical Dissertations and Theses

Differences in sugar titers, JH synthesis rate and biogenic amine metabolism correlated with three distinct activity groups or mature bees: resting bees, followers and dancers. Dancers had lower trehalose titers than followers or resting bees. In absconding bees trehalose titers were even lower, due to greatly elevated locomotor activity. The collecting and transferring of food by dancers and followers resulted in a higher glucose titer than in resting bees. Followers had a higher-JH synthesis rate than dancers, suggesting that JH could be an internal motivational stimulus to recruit followers to forage. Dancers and followers collect and transfer food and therefore …

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Work Motivation And Perceived Organizational Effectiveness In Middle Schools., Cynthia Young Wren Jan 1996

Work Motivation And Perceived Organizational Effectiveness In Middle Schools., Cynthia Young Wren

LSU Historical Dissertations and Theses

The primary purpose of this study was to determine the linkage between work motivation derived from the expectancy theory and perceived organizational effectiveness derived from the Parsonian framework. School characteristics of community type, school size, and school socioeconomic status were used as predictor variables in the study. A secondary purpose was to examine these linkages in middle schools and to examine changes over time. Mixed methodologies, including quantitative and qualitative research techniques, were employed. The data were analyzed using the school and the individual teacher as units of analyses. To test the hypotheses, a multiple regression procedure was employed. The …

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Children's Relative Influence In Purchase Decision-Making: A Multi-Theoretical Approach., Laura Ann Willis Williams Jan 1996

Children's Relative Influence In Purchase Decision-Making: A Multi-Theoretical Approach., Laura Ann Willis Williams

LSU Historical Dissertations and Theses

Sociological changes in the American family have positioned children to wield greater power in family purchase decisions. Although past descriptive research has confirmed that children are an important source of power in the household, this research has not explored the conceptual justification for the observed patterns of children's relative influence. To fill this gap in the family decision-making literature, this research develops a multi-theoretical conceptual model to explain children's relative influence in a purchase context. Social power theory, resource theory, social exchange theory, and social comparison theory were the conceptual frameworks for this research. Six studies were conducted, including a …

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Walker Percy's Return To The Feminine., John Patrick Zmirak Jr Jan 1996

Walker Percy's Return To The Feminine., John Patrick Zmirak Jr

LSU Historical Dissertations and Theses

What has been lacking in the corpus of interpretation of Walker Percy's work is a synthesis of approaches, a reading of the novels that unites the philosophical, psychological, theological, and linguistic insights that have accrued over three decades of criticism, and applies them to the vexing question of sexuality within his novels. In the present work, Percy's four central, non-satiric novels, The Moviegoer, The Last Gentleman, Lancelot and The Second Coming, are analyzed in the light of the Christian allegorical tradition, which employs sexual categories to explicate the meta-physical order, and to inform sexuality with meaning. In each of Percy's …

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"Goodbye, Mamma. I'M Off To Yokohama": The Office Of War Information And Tin Pan Alley In World War Ii., Kathleen Ellen Rahtz Smith Jan 1996

"Goodbye, Mamma. I'M Off To Yokohama": The Office Of War Information And Tin Pan Alley In World War Ii., Kathleen Ellen Rahtz Smith

LSU Historical Dissertations and Theses

The quest for the Great American War Song of World War II occupied the American music industry for most of the war years. But, to the amazement of the United States government's Office of War Information and the music industry, the songwriters of the era could not create a martial tune that had a lasting impact on the American public. Prior to World War II there had always been a song or songs readily identifiable with past conflicts. Following Pearl Harbor, Tin Pan Alley rushed to write the Great American War Song; however, to the bemusement of the music industry, …

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Robust Sensor Fusion Algorithms: Calibration And Cost Minimization., Richard Ree Brooks Jan 1996

Robust Sensor Fusion Algorithms: Calibration And Cost Minimization., Richard Ree Brooks

LSU Historical Dissertations and Theses

A system reacting to its environment requires sensor input to model the environment. Unfortunately, sensors are electromechanical devices subject to physical limitations. It is challenging for a system to robustly evaluate sensor data which is of questionable accuracy and dependability. Sensor fusion addresses this problem by taking inputs from several sensors and merging the individual sensor readings into a single logical reading. The use of heterogeneous physical sensors allows a logical sensor to be less sensitive to the limitations of any single sensor technology, and the use of multiple identical sensors allows the system to tolerate failures of some of …

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An Attempt To Classify The Production And Regulation Of Cyclooxygenase-2 During Ovulation And Luteolysis., James Robert Broussard Jan 1996

An Attempt To Classify The Production And Regulation Of Cyclooxygenase-2 During Ovulation And Luteolysis., James Robert Broussard

LSU Historical Dissertations and Theses

A series of experiments were designed to determine the cyclooxygenase (COX) isoform responsible for prostaglandin release during ovulation and luteolysis. Initially, a reliable, serum-free culture system was developed to produce large numbers of bovine granulosa cells originally harvested from the small antral follicles of abattoir ovaries. This method allowed adequate numbers of cells to be obtained for the subsequent study involving cyclooxygenase regulation. In a second experiment, bovine granulosa cells from small antral follicles were isolated and cultured as in the first experiment for 6 days. Granulosa cells were then exposed to medium alone or medium containing arachidonic acid (10 …

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Pseudospin Symmetry In Heavy Deformed Nuclei., Andrey L. Blokhin Jan 1996

Pseudospin Symmetry In Heavy Deformed Nuclei., Andrey L. Blokhin

LSU Historical Dissertations and Theses

The origin and validity of pseudospin symmetry, which is characteristic for heavy atomic nuclei ($A \ge 100$), are discussed. The transformation to the pseudospin representation for physically significant operators is performed by means of specially designed analytical techniques. The many-particle helicity operator is found to accomplish the transformation to the pseudospin basis in the scope of realistic nuclear models. Estimates based on both nonrelativistic mean-field and relativistic Dirac-Brueckner results show that in the helicity-transformed space nucleons move in a finite-depth, strongly nonlocal, potential with an effectively reduced spin-orbit strength. Since the chirality operation is the limiting case of the helicity …

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Some Lifting Problems In Arithmetic Equivalence., Nancy C. Colwell Jan 1996

Some Lifting Problems In Arithmetic Equivalence., Nancy C. Colwell

LSU Historical Dissertations and Theses

The main theorem in this dissertation provides a partial answer to the following question: Given a $\doubz\sb{p}$-extension $F{\sb\infty} /F$ and a finite extension $K/F$, where F is a number field and p a prime number, to what extent does the K-splitting behavior the prime ideals of F determine the Iwasawa invariants of the $\doubz\sb{p}$-extension $K{\cdot}F{\sb\infty}/K$. The answer is that if two fields K and L are arithmetically equivalent over F, then $K{\cdot}F{\sb\infty} /K$ and $L{\cdot}F{\sb\infty} /L$ have exactly the same Iwasawa invariants for any $\doubz\sb{p}$-extension $F{\sb\infty} /F$, so long as p is not an exceptional divisor for K and L …

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Nitrogen Accumulation By Rice., Arthur Bufogle Jr Jan 1996

Nitrogen Accumulation By Rice., Arthur Bufogle Jr

LSU Historical Dissertations and Theses

Consumption of rice is worldwide, and the rice-eating population is expanding rapidly. Breeding high yielding varieties has helped increase rice production. However, effective management practices have also been useful, and will probably become more vital as breeding efforts approach the genetic limits of the rice plant. Nitrogen (N) management is particularly important in reducing N losses and increasing grain yield. The objectives of this study were (1) to determine the amount of N accumulation by rice at different stages of plant development, (2) to determine if differences in N accumulation exist between rice varieties, and (3) to determine if differences …

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Existence And Uniqueness Theorems For Some White Noise Integral Equations., Dongya Zou Jan 1996

Existence And Uniqueness Theorems For Some White Noise Integral Equations., Dongya Zou

LSU Historical Dissertations and Theses

Let $({\cal S})\sbsp{\beta}{*},0\le\beta<1,$ be the Kondratiev-Streit spaces of generalized functions. Let $f:\lbrack 0,T\rbrack\times ({\cal S})\sbsp{\beta}{*}\to ({\cal S})\sbsp{\beta}{*},$ be weakly measurable, and satisfy a growth condition and a Lipschitz condition. Let $\theta :\lbrack 0, T\rbrack\to ({\cal S})\sbsp{\beta}{*},$ be weakly measurable and satisfy a growth condition. Then it is shown that the white noise integral equation $X\sb{t}=\theta\sb{t}+\int\sbsp{0}{t}f(s, X\sb{s})ds,0\le t\le T,$ has a unique solution in $({\cal S})\sbsp{\beta}{*}$, where the integral is a white noise integral in the Pettis or Bochner sense. This result is extended to ${\cal M}\sp*$, the Meyer-Yan distribution space. Some special equations are also solved explicitly. For $F\in L\sp2({\bf R}\sp+)$, let $A\sb{s}=\int\sbsp{-\infty}{s} F(s-u)\partial\sb{u}du,\ E\sb{s}= {\rm exp}(A\sb{s}),$ and $A\sbsp{s}{*},\ E\sbsp{s}{*}$ be their duals, respectively. The equation $X\sb{t}=\theta\sb{t}+\int\sbsp{0}{t} A\sbsp{s}{*}X\sb{s}ds, t\in\lbrack 0,T\rbrack,$ is solved in $({\cal S})\sp*$ or $(L\sp2)$, and the equation $X\sb{t}=\theta\sb{t}+\int\sbsp{0}{t} E\sbsp{s}{*}X\sb{s}ds, t\in\lbrack 0, T\rbrack,$ is solved in ${\cal M}\sp*,$ where $\theta$ is as above. Moreover, under certain conditions on $\theta,\Phi:\lbrack 0,T\rbrack\to ({\cal S})\sp*$ and $\sigma:\lbrack 0,T\rbrack\sp2\to{\bf R},$ the Volterra equation $X\sb{t}=\theta\sb{t}+\int\sbsp{0}{t}\sigma(t,s)\Phi\sb{s}\ {\rm o}\ X\sb{s}ds, t\in\lbrack 0,T\rbrack,$ is also solved, and its solution is in ${\cal M}\sp*, ({\cal S})\sbsp{\beta}{*},$ or $(L\sp2),$ depending on the growth conditions for $\theta$ and $\Phi.$ Finally, for a suitable deterministic function f, the white noise partial differential equation ${\partial u\over\partial t}=\Delta u+:e\sp{\dot B\sb{x}}: {\rm o}\thinspace u, u(0,x)=f(x),x\in{\bf R}\sp{n}, t\in\lbrack 0,\infty),$ is solved in ${\cal M}\sp*$.

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Szasz-Muntz Theorems For Nilpotent Lie Groups., Darwyn C. Cook Jan 1996

Szasz-Muntz Theorems For Nilpotent Lie Groups., Darwyn C. Cook

LSU Historical Dissertations and Theses

The classical Szasz-Muntz theorem says that for $f\ \in\ L\sp2(\lbrack 0, 1\rbrack )$ and $\{n\sb{k}\}\sbsp{k=1}{\infty}$ a strictly increasing sequence of positive integers,$$\int\limits\sbsp{0}{1}x\sp{n\sb{j}}f(x)dx=0\ \forall j\Rightarrow f=0\Leftrightarrow\sum\sbsp{j=1}{\infty}{{1}\over{n\sb{j}}}=\infty.$$We have generalized this theorem to compactly supported functions on $\Re\sp{n}$ and to an interesting class of nilpotent Lie groups. On $\Re\sp{n}$ we rephrased the condition above on an integral against a monomial as a condition on the derivative of the Fourier transform $\ f$. For compactly supported f this transform has an entire extension to complex n-space, and these derivatives are coefficients in a Taylor series expansion of $\ f$. In the nilpotent Lie groups …

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Dynamic Storage Allocation Using Simon's Model Of Information Usage., Rachelle Folse Cope Jan 1996

Dynamic Storage Allocation Using Simon's Model Of Information Usage., Rachelle Folse Cope

LSU Historical Dissertations and Theses

In today's rapidly changing field of Management Information Systems (MIS) one problem faced by organizations is the consumption of storage capacity due to the growing base of software assets. Research has shown that very few firms effectively monitor program usage. Storage management issues arise due to the fact that many of the programs occupying valuable storage space are used infrequently. In this dissertation, we apply Simon's model of information usage in order to model the dynamic behavior of program usage. This methodology enables organizations to identify the changing usage frequencies of software assets. We propose a classification scheme which MIS …

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Fluorescence Polarization Studies: A Global View Of Molecular Photoionization Dynamics Over An Extended Energy Range., Romith Ranjan Das Jan 1996

Fluorescence Polarization Studies: A Global View Of Molecular Photoionization Dynamics Over An Extended Energy Range., Romith Ranjan Das

LSU Historical Dissertations and Theses

The experimental technique of measuring the degree of polarization of the fluorescence from electronically excited molecular ions is used to determine the alignment of N$\sb2$, CO and N$\sb2$O photoions over an extended range of excitation energy. The polarization of $\rm CO\sp+(B\sp2\Sigma\sp+\to\ X\sp2\Sigma\sp+),\ N\sb2\sp+(B\sp2\Sigma\sb{u}\sp+\ \to \ X\sp2\Sigma\sb{g}\sp+)$, and $\rm N\sb2O\sp+\ (A\sp2\Sigma\sp+\ \to\ X\sp2\Pi)$ fluorescence over a 200 eV photon energy range is used to interpret the oscillator strength distributions for normally unresolved degenerate ionization channels. The results show the influence of a CO $4\sigma\to k\sigma$ shape resonance clearly, and agreement between theory and experiment is excellent. The N$\sb2$O experimental results indicate …

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Satisfaction With Health Care: A Predictor Of Hemodialysis Patient Compliance., Pamela Gay Davis Jan 1996

Satisfaction With Health Care: A Predictor Of Hemodialysis Patient Compliance., Pamela Gay Davis

LSU Historical Dissertations and Theses

Several studies in general medical populations have demonstrated the positive relation between satisfaction with health care and compliance with treatment recommendations. Overall, the compliance literature suggests that the behavior of the health care provider can influence patient compliance and the resulting health outcome. However, the relation between patient satisfaction and compliance with the hemodialysis regimen has not been examined. Because of this populations' frequent and extensive interaction with the dialysis staff, exploration of the effects of satisfaction with these relationships and the care provided on patient compliance appears to be an important health care issue. This study evaluated the ability …

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The Study Of High Energy Heavy Nucleus Interactions In Nuclear Emulsion Chambers Using Digital Image Processing., Philip Vern Deines-Jones Jan 1996

The Study Of High Energy Heavy Nucleus Interactions In Nuclear Emulsion Chambers Using Digital Image Processing., Philip Vern Deines-Jones

LSU Historical Dissertations and Theses

Nuclear emulsion chambers with lead targets have been exposed to a 158 GeV per nucleon beam of $\sp{208}$pb nuclei, by far the heaviest ion accelerated to such a high energy to date. These interactions frequently produce more than 1000 charged particles. In order to measure multiplicities and secondary particle trajectories in these extremely large events, an automatic CCD-based microscope system has been developed to analyze images, count secondary tracks, measure their trajectories, and estimate their charge. Based on the analysis of 40 high-multiplicity Pb-Pb events measured using this system, we assess the degree to which these interactions can be described …

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Cognitive Differences And Their Predictive Ability On Reading Performance In Skilled And Unskilled Readers., Mary Elizabeth Carter Jan 1996

Cognitive Differences And Their Predictive Ability On Reading Performance In Skilled And Unskilled Readers., Mary Elizabeth Carter

LSU Historical Dissertations and Theses

The present study examined the relationships among short-term memory, working memory, phonological awareness, and reading performance as measured by an informal reading inventory. Relationships between and among the tasks, their predictive importance with regard to word recognition, accuracy, fluency, and comprehension, and their ability to discriminate among groups of readers were investigated. A battery of tests comprising 14 cognitive variables and 24 reading variables was individually administered to 105 fourth and fifth grade normally achieving readers, unidentified unskilled readers, and school identified unskilled readers. Results revealed that working memory, phonological awareness, and syntactic awareness tasks were significantly intercorrelated among themselves, …

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The Effect Of Membrane Structure On Lipid Peroxidation And Its Inhibition., Tammy Renee Dugas Jan 1996

The Effect Of Membrane Structure On Lipid Peroxidation And Its Inhibition., Tammy Renee Dugas

LSU Historical Dissertations and Theses

Lipid peroxidation is the process by which lipids in the cell membrane undergo free radical-initiated oxidation. The resulting cell damage has been implicated in the onset of many diseases, including as cancer, aging, and stroke. Lipid oxidation has been studied in a variety of membrane models, including homogeneous solution, micelles, liposomes, and microsomes. The kinetics for free radical reactions proven to occur during lipid oxidation in homogeneous solution have been thoroughly elucidated. These kinetics were also shown to apply to oxidation in micelles. This dissertation presents evidence that the kinetics of more biologically realistic membrane models such as liposomes may …

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Applications Of Grobner Bases To Linear Codes., Jeanne Fitzgerald Jan 1996

Applications Of Grobner Bases To Linear Codes., Jeanne Fitzgerald

LSU Historical Dissertations and Theses

Put $A={\bf F}\sb{q}\lbrack x\sb1,\...,x\sb{s}\rbrack,$ and let I be an ideal of A. Let $P\sb1,\...,P\sb{n}$ be all the ${\bf F}\sb{q}$-rational points of $V(I)$. Define a map $\varphi:A/I\to{\bf F}\sbsp{q}{n}$ by $\varphi(\tilde f)=(f(P\sb1),\...,f(P\sb{n})),$ where f is any preimage of $\tilde f$ under the canonical map from A to $A/I.$ Let $\{\tilde f\sb{i}\vert i\in {\bf N}\}$ be a basis of $A/I$ as an ${\bf F}\sb{q}$-vector space. Define the affine variety code C and its dual $C\sp\perp$ by$$C=\varphi(\langle\tilde f\sb1,\...,\tilde f\sb{m}\rangle);$$C$\sp\perp$ is the orthogonal complement of C with respect to the usual inner product in ${\bf F}\sbsp{q}{n}$. We show that any linear code can be expressed …

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The Application Of Network Analysis To The Study Of Differentially Effective Schools., Maryann Maxwell Durland Jan 1996

The Application Of Network Analysis To The Study Of Differentially Effective Schools., Maryann Maxwell Durland

LSU Historical Dissertations and Theses

This study applied network analysis to the exploration of the structural characteristics of differentially effective elementary schools within the framework of school effectiveness research. The study took place in two parts: a Pilot Study, using archived data, and a Field Study, using data from a stratified sample of differentially effective schools. The Centrality-Cohesiveness Model of School Effectiveness, developed through the Pilot Study, defined a communication structure as a function of the leadership status of the principal (defined by the principal's centrality) and the cohesiveness of the faculty (defined as network density). Quantitative results from both the Pilot Study and the …

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Longitudinal Dispersion And Interstitial Velocity Relationship In Subsurface Flow Constructed Wetlands., Gianna M. Cothren Jan 1996

Longitudinal Dispersion And Interstitial Velocity Relationship In Subsurface Flow Constructed Wetlands., Gianna M. Cothren

LSU Historical Dissertations and Theses

Treatment of municipal and rural wastewater using subsurface flow constructed wetlands (SFCW's) is growing in popularity. These systems often consist of an excavated cell containing 2-3 in. rock with the wastewater level maintained below the media surface. A SFCW is a natural form of wastewater treatment which removes organics and nutrients based on the attached growth of microorganisms on crushed rocks where biological reactions take place. The currently accepted design procedure is based on the first order plug flow model, although tracer studies have shown that flow conditions are not well represented by the plug flow condition. This design rationale …

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Faculty Characteristics That Are Associated With The Retention Of Doctoral Students., Bonnie Chaney Cooper Jan 1996

Faculty Characteristics That Are Associated With The Retention Of Doctoral Students., Bonnie Chaney Cooper

LSU Historical Dissertations and Theses

The primary purpose of this study was to elicit perceptions of doctoral-student advisors regarding issues and processes associated with graduate dissertation research experiences in the schools of vocational education. A mailed survey was sent to teacher educators from the 21 member institutions of the University Council for Vocational Education (UCVE) who had served as chair to at least one doctoral committee. A researcher-designed instrument which used selected scales from other research was sent to the survey population. Statistical analyses were conducted on 144 completed surveys which represented a usable response rate of 76%. The completion rate among faculty's doctoral-student advisees …

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The Role Of Environmental Attitudes In Incentive-Based Environmental Management: The Case Of The Wetland Reserve Program., Assane Diagne Jan 1996

The Role Of Environmental Attitudes In Incentive-Based Environmental Management: The Case Of The Wetland Reserve Program., Assane Diagne

LSU Historical Dissertations and Theses

Environmental policy in the United States is increasingly relying on incentive-based mechanisms (IBM). Incentive-based mechanisms, are voluntary environmental management instruments based on free market environmentalism, a framework that attempts to harness market forces. A multi-disciplinary approach was developed to evaluate participation decisions in IBM's such as the Wetland Reserve Program. This approach extended the traditional utility maximization approach to choice behavior by including alternative measures of environmental attitudes based on the theory of reasoned action or the New Environmental Paradigm. The addition of these psychological constructs conceptually improved the utility maximization by allowing the consideration of well established determinants of …

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Contextual Influences On Consumer Perceptions Of Tensile Price Claims In Retail Advertisements., Katherine A. Fraccastoro Jan 1996

Contextual Influences On Consumer Perceptions Of Tensile Price Claims In Retail Advertisements., Katherine A. Fraccastoro

LSU Historical Dissertations and Theses

This dissertation was undertaken to contribute to the discipline of marketing by answering three important research questions: (1) "what are the effects of exaggerated tensile price claims as compared to plausible tensile price claims?", (2) "which alternative framework (assimilation contrast theory or the anchoring and adjustment framework) provides the most suitable explanation of the effects of exaggerated tensile price claims on consumer perceptions and discount expectancies?", and (3) "what role do two contextual variables (consistency and sale-rationale) play in moderating the relationship between the consumer price perception variables and the discount expectancies?". To this end, two experiments were performed with …

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Relationships Between Brain Biogenic Amines And Reproductive And Defense Behavior In Honey Bees (Apis Mellifera L.)., Jeffrey Wayne Harris Jan 1996

Relationships Between Brain Biogenic Amines And Reproductive And Defense Behavior In Honey Bees (Apis Mellifera L.)., Jeffrey Wayne Harris

LSU Historical Dissertations and Theses

This dissertation represents an attempt to relate behavioral states of worker honey bees to brain levels of biogenic amines. The first chapter describes the results of experiments which indicated that brain levels of octopamine, dopamine and serotonin were affected by factors including the degree of handling stress, worker age, season of sampling and the source colony from which the workers were sampled. These results helped shape the methods employed in the subsequent chapters. The second and third chapters relate changes in brain dopamine levels to worker honey bee ovarian development. In particular, chapter II showed that an increase in brain …

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The Effects Of Ama Contributions In The United States Senate: An Analysis Of Roll Call Votes, 1979--1992., Karen Gutermuth Jan 1996

The Effects Of Ama Contributions In The United States Senate: An Analysis Of Roll Call Votes, 1979--1992., Karen Gutermuth

LSU Historical Dissertations and Theses

Based on the economic theory of regulation, our model portrays U.S. senators as utility-maximizing agents and the American Medical Association (AMA) as a rational contributor. We use contributions from the AMA's political arm, the American Political Action Committee (AMPAC), and roll call votes in the U.S. Senate from 1979-1992 to test for AMPAC contributions effects, to test the hypothesis that the AMA "rewards" senators for their voting behavior, and to determine the role of issue specificity. We use pooled, cross-sectional data in a simultaneous Probit-Tobit-Generalized Least Squares framework and extend the traditional analyses by examining alternative timing specifications, election year …

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Teachers' Perceptions Of The Principal/Superintendent Relationship And The Organizational Climate Of The School: Do They Correlate?, Catherine Hall Glascock Jan 1996

Teachers' Perceptions Of The Principal/Superintendent Relationship And The Organizational Climate Of The School: Do They Correlate?, Catherine Hall Glascock

LSU Historical Dissertations and Theses

This exploratory study examines teachers' perceptions of the principal/superintendent relationship in terms of hierarchical independence and influence, and whether those teachers' perceptions correlate with perceptions of the organizational climate of the school. A new instrument (TAI) was developed to measure the principal/superintendent relationship. After a literature review, panel of experts, and a principal intern class, a fourteen item instrument was used with the teachers. In order to hold some extraneous variables constant, only principals and superintendents who held office for at least three years were acceptable for the study. Factor analysis was conducted and the results indicate that while the …

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