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A Qualitative Evaluation Of The Louisiana Cooperative Extension Issues Programming Process Using Focus Group Interviews., Fred Eugene Baker Jan 1992

A Qualitative Evaluation Of The Louisiana Cooperative Extension Issues Programming Process Using Focus Group Interviews., Fred Eugene Baker

LSU Historical Dissertations and Theses

Evaluating programs is a necessary and vital function in the management of all organizations. In 1988, the Louisiana Cooperative Extension Service (LCES) began an intensive statewide process entitled "Issues Programming". This is a qualitative evaluation of that process. The study focused on the perceptions of extension agents and community leaders who participated in the process. Four focus group interviews were conducted, two each for agents and leaders. Geographic site selection provided for participant inclusion from all LCES administrative areas. The groups were asked a series of open ended questions designed to draw from them in-depth perceptions about the process in …

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Tournaments And Ideal Class Groups., Robert John Kingan Jan 1992

Tournaments And Ideal Class Groups., Robert John Kingan

LSU Historical Dissertations and Theses

In a series of papers published in the 1930's, L. Redei and H. Reichardt established a method for determining the 4-rank of the narrow ideal class group of a quadratic number field, essentially by finding the rank over ${\bf F}\sb2$ of a $\{0,1\}$-matrix determined by applying the Kronecker symbol to the prime divisors of the field discriminant. When this field is of the form ${\bf Q}(m\sp{1\over2}),$ with $m={\pm}p\sb1{\cdots}p\sb{n},$ each $p\sb{i}\equiv3$ (mod 4) prime, this matrix takes a form similar to that of the adjacency matrix for a tournament graph. Also, in this case we can find the 4-rank of the …

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Fatigue Effects On Manual Lifting Acceleration., Youngjoun Kim Jan 1992

Fatigue Effects On Manual Lifting Acceleration., Youngjoun Kim

LSU Historical Dissertations and Theses

The objective of this research was to study the effects of fatigue on lifting acceleration and posture caused by repetitive manual lifting. Electromyogram, oxygen consumption and heart rate were used as indices of a subject's physiological fatigue. Data were collected for a period of two hours of continuous lifting, at a rate of 4 lifts per minute using the free-style posture. A box of fixed dimensions (30cm x 30cm x 20cm) and fixed weight (15.9 Kg) was used as load. It was found that the average load acceleration increased with work duration. Peak acceleration was found to be maximum in …

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Assessment Of Depression In Adolescents: Relationship Between Iq, Depression, And Adaptive Behavior., Ramasamy Manikam Jan 1992

Assessment Of Depression In Adolescents: Relationship Between Iq, Depression, And Adaptive Behavior., Ramasamy Manikam

LSU Historical Dissertations and Theses

The primary focus of this investigation was to examine differences in depression, general psychopathology, and social skills among adolescents, and to identify the role of adaptive behavior between intelligence (I.Q.) and depression. One hundred adolescents, 13 through 17 years of age participated in this study. I.Q.s ranged between 40 to 130. Five levels of I.Q.s were studied (Above normal, Average, Borderline, Mild, Moderate). Three depression measures, the Child Depression Inventory (CDI), Reynolds Adolescent Depression Scale (RADS), Bellevue Index of Depression (BID), one social skills measure Matson Evaluation of Social Skills with Youngsters (MESSY), and one general psychopathology measure Psychopathology Instrument …

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Failure Predictions In Repairable Multi-Component Systems., Woodrow Thomas Roberts Jr Jan 1992

Failure Predictions In Repairable Multi-Component Systems., Woodrow Thomas Roberts Jr

LSU Historical Dissertations and Theses

The subject of this research is the prediction of failures in repairable multi-component systems from statistical models that utilize the historical failure data for the systems. Failures occurring in repairable systems are examples of a series of discrete events which occur randomly in a continuum. Such stochastic point processes are analyzed using the statistics of event series. The Crow nonhomogenous Poisson process, NHPP, model is recognized by the reliability community as being one of the best models for repairable systems. The objective of this research is to show that the Crow NHPP model, with its overall failure predictions for a …

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Nonlinear Inelastic Finite Element Analysis Of Reinforced Concrete Structures With Emphasis On Shear And Torsion. (Volumes I And Ii)., Ananth Ramaswamy Jan 1992

Nonlinear Inelastic Finite Element Analysis Of Reinforced Concrete Structures With Emphasis On Shear And Torsion. (Volumes I And Ii)., Ananth Ramaswamy

LSU Historical Dissertations and Theses

In this study a post-cracking formulation for the analysis of reinforced concrete structures has been proposed. The secant stiffness formulation considers the following nonlinearities: effects of tension-stiffening in concrete along the reinforcing direction(s), aggregate interlock model with variable shear based on crack confining stresses, and reduction of concrete compressive strength and stiffness after cracking as a function of stresses or strains. The cracking model is capable of simulating the effects of multiple non-orthogonal cracks at a point. This total stiffness formulation treats concrete unloading and reloading along a secant path and is capable of simulating the post-peak strain softening response. …

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Banach Space Valued Stochastic Differential Equations., Fariborz Asadian Jan 1992

Banach Space Valued Stochastic Differential Equations., Fariborz Asadian

LSU Historical Dissertations and Theses

Let $W(t,\omega)$ be a Brownian motion on an abstract Wiener space (i,H,B) corresponding to the canonical normal distribution on H. The well known theorem of Girsanov is proved for such a process with the perturbing term taking values in the Hilbert space H. Consider the stochastic integral equation $\xi(t) = x+\int\sbsp{0}{t}A(s,\xi(s))dW(s)+\int\sbsp{0}{t}\sigma(s,\xi(s))ds$ where x is in $B,\ A(\cdot,\cdot)$ and $\sigma(\cdot,\cdot)$ are bounded continuous functions from $\lbrack 0,\infty)\times B$ to $I+L\sb2(H)$ and H respectively. Here $L\sb2(H)$ denotes the collection of Hilbert Schmidt operators on H. Furthermore, suppose for every $s\ge 0$ the restriction of $A(s,\cdot)$ to H is invertible and $A(s,\cdot)$ and …

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Partisan Representational Form And Partisan Bias In United States State Lower-House Legislative Elections: A District-Level Approach., Kenneth Alan Wink Jan 1992

Partisan Representational Form And Partisan Bias In United States State Lower-House Legislative Elections: A District-Level Approach., Kenneth Alan Wink

LSU Historical Dissertations and Theses

I explore the relationship between partisan votes and partisan seat allocation in U.S. state lower-house elections. Specifically, I measure the representational form (the rate of partisan seat changes given particular partisan vote changes) and partisan bias (asymmetry in the seats-votes relationship) of 441 lower-house state legislative elections in 46 states from 1968 to 1987. I then test a number of hypotheses that have been advanced to explain variation in representational form and partisan bias. Values for representational form and partisan bias are generated by creating simulations from actual election results. I simulate seat gains made by Republicans given one percent …

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The Use Of Goal Setting And Contingency Contracting For Improving Children's Homework Performance., Deborah Lynn Miller Jan 1992

The Use Of Goal Setting And Contingency Contracting For Improving Children's Homework Performance., Deborah Lynn Miller

LSU Historical Dissertations and Theses

Research suggests that homework has favorable effects on learning and student achievement. However, research directed at improving homework completion and accuracy has been limited in scope. The present study examined the effects of goal setting and contingency contracting on children's homework performance. Subjects were four parent-child dyads in which the child exhibited clinically significant homework problems. Dependent variables of primary interest included direct observation of children's on-task behavior, work accuracy, and Homework Problem Checklist scores (Anesko, Schoiock, Ramirez, & Levine, 1987). Using a combination of multiple baseline and withdrawal (ABAB) designs, goal setting and contingency contracting produced significant improvements in …

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Predicting Success Of Minority Nursing Students On The "New" Nclex-Rn., Janet Simmons Rami Jan 1992

Predicting Success Of Minority Nursing Students On The "New" Nclex-Rn., Janet Simmons Rami

LSU Historical Dissertations and Theses

The purpose of this study was to identify academic variables that could be used to forecast success for minority, baccalaureate (BSN) students enrolled in higher education in the south. A second purpose was to develop a methodological framework for predicting success on the post-1988 versions of the National Council Licensure Examination for Registered Nurses (NCLEX-RN), that enhanced external validity, and generalizability. The best predictors of success for minority BSN nursing students were the Mosby assesstest, school comprehensive exit exams, GPA microbiology, the college cumulative GPA, nursing course cumulative GPA, and ACT composite. The sample included 216 Black graduates of three …

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An Investigation Of The Relationship Between Severity Of Specific Adhd Symptoms And Parent And Child Locus-Of-Control Orientation In The Expression Of Parental Stress., Esther Marie Winters Jan 1992

An Investigation Of The Relationship Between Severity Of Specific Adhd Symptoms And Parent And Child Locus-Of-Control Orientation In The Expression Of Parental Stress., Esther Marie Winters

LSU Historical Dissertations and Theses

This study investigated the effects of the child's specific ADHD symptoms, aggressive symptoms, and the parents' and child's locus of control orientation on parental stress. The frequently overlooked heterogeneous nature of the ADHD population was addressed, by assessing specific ADHD symptoms and the presence of aggressive symptomatology. Sixty boys, ages 6 to 12 years, diagnosed (using DSM-III-R criteria) as having ADHD by a licensed clinical psychologist in private practice, and their parents participated in the study. Parents were asked to sign a consent form and complete measures of parental locus of control and parenting stress. A children's locus of control …

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The Interference Of Non-Meaningful Learning On Subsequent Meaningful Learning., Dolores Pesek Simoneaux Jan 1992

The Interference Of Non-Meaningful Learning On Subsequent Meaningful Learning., Dolores Pesek Simoneaux

LSU Historical Dissertations and Theses

The purpose of this study is to develop a framework for the notions of meaningful and non-meaningful and to test for learning interference from a non-meaningful then meaningful instructional sequence. A review of the literature reveals that terminologies differ widely, but similarities in notions emerge. The terms meaningful and non-meaningful are employed here to indicate, respectively, richness in relationships, or a relative absence of relationships both within the knowledge structure, and in relation to previous knowledge. Based on a Piagetian framework of learning involving assimilation/accommodation and consequently disequilibrium, I hypothesize that non-meaningful learning tends to establish constructs that interfere with …

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Fourier Transform And Heat Equation In White Noise Analysis., Jung-Soon Kim Lee Jan 1992

Fourier Transform And Heat Equation In White Noise Analysis., Jung-Soon Kim Lee

LSU Historical Dissertations and Theses

In this dissertation, we study the Fourier transform and heat equation in the white noise set-up. It is known that the Fourier transform ${\cal F}$ can be defined on the space (${\cal S}$)* of generalized white noise functionals. We prove that ${\cal F}$ is the adjoint of a certain linear operator on the space (${\cal S}$) of test functionals. On the other hand, it is known that if f is a bounded Lip-1 function on an abstract Wiener space with Gaussian measures $P\sb{t},$ then $u(t)=P\sb{t}f$ solves the heat equation ${d\over dt}u(t)={1\over2}\Delta\sb{G}u(t)$ with initial condition u(0) = f where $\Delta\sb{G}$ is …

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Interactive Graphics-Based Musculotendon Modeling For Reconstructive Surgery Of The Hand., Inmo Yoon Jan 1992

Interactive Graphics-Based Musculotendon Modeling For Reconstructive Surgery Of The Hand., Inmo Yoon

LSU Historical Dissertations and Theses

This research has been directed at studying and developing a prototype research and clinical Computer Aided Design (CAD) tool to be used for planning tendon paths in hand reconstructive surgery. Of equal importance is the goal of having an educational tool for teaching hand biomechanics to students of this specialty. The application of CAD to rehabilitative surgery of the hand is a new field of endeavor. There are currently no existing commercial products designed to assist the orthopedic surgeon in planning these complex procedures. Additionally, orthopedic surgeons are not trained in mechanics, kinematics, math modeling, or the use of computers. …

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Assimilation Of Organic Contaminants In Wetlands: Processes And A Conceptual Model., John Howard Pardue Jan 1992

Assimilation Of Organic Contaminants In Wetlands: Processes And A Conceptual Model., John Howard Pardue

LSU Historical Dissertations and Theses

Laboratory studies and field measurements were conducted to quantify assimilative capacity of toxic organic contaminants in freshwater wetlands. Studies were conducted for hexachlorobenzene and naphthalene in a mineral-dominated bottomland hardwood forest and an organic matter-dominated freshwater marsh. In laboratory studies, sorption of hexachlorobenzene (HCB) in wetland soil and floodwater was strongly influenced by high levels of naturally occurring dissolved organic carbon (DOC). Organic matter-dominated wetlands (e.g., marshes) demonstrated no advantage over mineral-dominated wetlands (e.g., bottomland hardwood forests) for sorption of HCB due to partitioning in this DOC phase. Over the short-term, sorption of HCB was adequately described using a three-phase …

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Monte Carlo Studies Of The Critical Phenomena In Carbon Monoxide Oxidation., Bing Yu Jan 1992

Monte Carlo Studies Of The Critical Phenomena In Carbon Monoxide Oxidation., Bing Yu

LSU Historical Dissertations and Theses

It is well established that anisotropy does not affect the critical behavior of a system in thermodynamic equilibrium undergoing a second order phase transition. We study here an anisotropic kinetic model for heterogeneous catalysis which mimics the oxidation of CO on the (110) surface of a transition metal like Pd. In this model, the oxidation process occurs at an infinite reaction rate. We mapped out the phase diagram of possible steady states for various anisotropic reaction and absorption processes as a function of the O$\sb2$/CO adsorption rate and the CO diffusion rate. The phase diagram depends upon the amount of …

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Effects Of Sequence Length And Statistical Structure On Sequence-Specific Learning In A Serial Rt Task, Craig B. Neely Jan 1992

Effects Of Sequence Length And Statistical Structure On Sequence-Specific Learning In A Serial Rt Task, Craig B. Neely

Honors Capstones

No abstract provided.

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Reasoning Using Biological Content: Relationships Among Evidence, Theory, And Interpretation., Catherine Lee Cummins Jan 1992

Reasoning Using Biological Content: Relationships Among Evidence, Theory, And Interpretation., Catherine Lee Cummins

LSU Historical Dissertations and Theses

Theoretical sampling was used to select 30 high school biology and college zoology students who examined a simulation involving island biogeography. The literature base for the study was scientific reasoning, problem solving, and prescientific conceptions. The research questions were answered using qualitative and quantitative methods. The first research question was: What number and what type of variables would be used to evaluate biological data? The students used 19 categories of variables, and the most frequently used were size, distance, and food. The second research question was: Will students use the controlling variables strategy in this reasoning task? Only four students …

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Impact Of The Preservice Field Experience In Foreign Language Teaching: A Study Of The Development Of Preservice Teachers' Perspectives In Foreign Language Teaching. (Volumes I And Ii)., Denise Egea-Kuehne Jan 1992

Impact Of The Preservice Field Experience In Foreign Language Teaching: A Study Of The Development Of Preservice Teachers' Perspectives In Foreign Language Teaching. (Volumes I And Ii)., Denise Egea-Kuehne

LSU Historical Dissertations and Theses

Within the broader issue of teacher education, the focus of this study is on one of the most neglected areas of inquiry in the field of foreign languages, the preservice field experience, and the development of student teachers' perspectives of foreign language teaching. The following questions were specifically addressed: (1) What perspectives of foreign language teaching do student teachers hold upon completion of their program of university courses? (2) Is there an alteration of student teachers' perspectives of foreign language teaching during their student teaching semester? (3) What factors appear to influence student teachers' perspectives of foreign language teaching during …

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The Development, Validation, And Application Of A Two-Tier Diagnostic Instrument To Detect Misconceptions In The Areas Of Force, Heat, Light And Electricity., Bobby Jo Franklin Jan 1992

The Development, Validation, And Application Of A Two-Tier Diagnostic Instrument To Detect Misconceptions In The Areas Of Force, Heat, Light And Electricity., Bobby Jo Franklin

LSU Historical Dissertations and Theses

The purpose of this study was to investigate the concepts prevalent among students in specific physical science related classes and to identify what classroom teachers would do when confronted with this knowledge. A 40 item instrument, Misconception Identification in Science Questionnaire (MISQ), was developed to identify certain concepts in the areas of force, heat, light, and electricity and administered to 509 students. Interviews were conducted with a stratified sampling of 27 students to validate the instrument. Six teachers were observed and interviewed to determine teacher opinion relative to test usefulness, diagnostic testing in general and other instructional factors. Quantitative and …

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A Conjoint Analysis Of Wetland-Based Recreation: A Case Study Of Louisiana Waterfowl Hunting., Christopher Ec Gan Jan 1992

A Conjoint Analysis Of Wetland-Based Recreation: A Case Study Of Louisiana Waterfowl Hunting., Christopher Ec Gan

LSU Historical Dissertations and Theses

Conjoint analysis is a recent evolution in mathematical psychology that has been employed extensively in the marketing environment. The technique is concerned with measuring the joint effect of two or more independent variables on the ordering of a dependent variable. Conjoint analysis relates an individual's preferences to a set of prespecified attributes. The objective of conjoint analysis is to decomposed a set of responses to factorially designed stimuli in which the utility of each stimuli attribute can be inferred from the respondents' evaluations of the stimuli. In addition, conjoint analysis and its economic foundations are developed in the context of …

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Development Of Various Quantitative And Analytical Methods For The Analysis Of The Dynamics Of Fish Populations: An Application To The Spotted Seatrout Population In Coastal Louisiana., Thomas Earl Helser Jan 1992

Development Of Various Quantitative And Analytical Methods For The Analysis Of The Dynamics Of Fish Populations: An Application To The Spotted Seatrout Population In Coastal Louisiana., Thomas Earl Helser

LSU Historical Dissertations and Theses

Presented in this dissertation are analytical and quantitative methods developed for an experimental gillnet sampling program for the analysis of the dynamics of fish populations, illustrated here on Louisiana's spotted seatrout population. Chapter 1 presents a new method of estimating gillnet selectivity using a system of simultaneous equations and a non-linear iterative maximum likelihood approach. The model solution is a set of parameter estimates which mathematically describe the response surface of capture probabilities for fish of size-class j in mesh size i. As an extension to the nonlinear maximum likelihood gillnet selectivity model, Chapter 2 presents a second approach using …

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Development Of A Technique To Determine The Temperature Dependence Of The Refractive Index Of Carbonaceous Particulates., Barry James Stagg Jan 1992

Development Of A Technique To Determine The Temperature Dependence Of The Refractive Index Of Carbonaceous Particulates., Barry James Stagg

LSU Historical Dissertations and Theses

The complex refractive index of carbonaceous particulates is an important quantity in many areas of combustion research and practical applications. This property characterizes the radiative transport in luminous flames and plays a key role in the interpretation of conventional light scattering measurements. The purpose of the present study is to develop a technique which will allow the experimental determination of the temperature dependence of the refractive indices of carbonaceous materials and provide a predictive model for the variation of the indices. A high temperature ellipsometer system is developed that allows measurements of the intensity of polarized light reflected from the …

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From Their Perspective: Issues Of Schooling And Family Culture Of Four African-American First Generation College Students., Neari Francois Warner Jan 1992

From Their Perspective: Issues Of Schooling And Family Culture Of Four African-American First Generation College Students., Neari Francois Warner

LSU Historical Dissertations and Theses

The diversity of students entering today's colleges and universities makes it increasingly important that educators, theorists and other scholars strive toward a fuller understanding of the life conditions of minority groups. This research is designed to provide insight into the processes, pressures and people that shape the lives of one particular minority group, the African American non-traditional, first generation college student. In this research, I examine the school and family experiences of four of these students in an attempt (1) to provide data that contribute to the refutation of the stereotypical images and myths that are so pervasively used to …

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Ultrafast Study Of Photochemistry On Chromium Hexacarbonyl Using Resonance Raman Spectroscopy., Soo-Chang Yu Jan 1992

Ultrafast Study Of Photochemistry On Chromium Hexacarbonyl Using Resonance Raman Spectroscopy., Soo-Chang Yu

LSU Historical Dissertations and Theses

In this dissertation ultrafast photochemistry of Cr(CO)$\sb6$ using picosecond resonance Raman spectroscopy is studied. The advantage of the transient resonance Raman spectroscopy for this study is demonstrated along with a Raman differencing technique. This study is divided into two main parts. The first part deals with the property of the electronic excited state of the Cr(CO)$\sb6.$ The attempt to reveal the excited electronic structure of Cr(CO)$\sb6$ is tried with the help of Albrecht vibronic theory and wave packet description. Reaction coordinate and Jahn-Teller effects have been investigated in detail. Two possible reaction coordinates are found in contrast to the results …

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Jeremy Rifkin Challenges Recombinant Dna Research: A Rhetoric Of Heresy., Wiley Michael Futrell Jan 1992

Jeremy Rifkin Challenges Recombinant Dna Research: A Rhetoric Of Heresy., Wiley Michael Futrell

LSU Historical Dissertations and Theses

Western culture, in large part, is a product of scientific inquiry, technological development and the ability to harness some of nature's resources. Much of society looks to science for technology-related solutions to many of its ills. As it develops new technology, science necessarily seeks to understand and control the forces of nature. Although science assumes a prominent role in contemporary society, that prominence does not necessarily translate into cultural consensus on the progress achieved by technological developments. Another perspective is represented by those who contend that continued technological advancement is the source of existing problems, not the solution. As these …

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Students' Use Of Teacher Feedback During Badminton Instruction., Nyit Chin Keh Jan 1992

Students' Use Of Teacher Feedback During Badminton Instruction., Nyit Chin Keh

LSU Historical Dissertations and Theses

This study examined the relationship between teacher feedback variables, student process variables, and student achievement. Another purpose was to investigate the mediating role of student process variables in student achievement. The subjects were 41 college students enrolled in two beginning badminton classes, and an experienced physical education teacher volunteered to teach both classes. Ten 45 minute instructional sessions took place over a 5 week period. Each class session was videotaped for subsequent coding. Subjects were pretested, posttested, and given a retention test on three badminton skills, the forehand high serve, the forehand overhead clear, and the backhand overhead clear. Student …

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Parallel Geometric Algorithms., Fenglien Lee Jan 1992

Parallel Geometric Algorithms., Fenglien Lee

LSU Historical Dissertations and Theses

Geometric algorithms have many important applications in science and technology. Some geometric problems require fast response time that could not be achieved by traditional sequential algorithms. However, the speed, power and versatility of parallel computers can be exploited to develop efficient geometric algorithms as shown in this dissertation. Our study focuses on designing efficient parallel geometric algorithms and analyzing their computational complexities. In this research, first we developed a parallel algorithm to find the maxima of a set of N points in the d-dimensional space, d $>$ 3, on a hypercube SIMD machine. Our algorithm is a parallel implementation …

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Molecular Cloning, Expression And Site-Directed Mutagenesis Of A Complementary Dna Encoding Rabbit Muscle Fructose 6-Phosphate-1-Kinase., Jau-Yi Li Jan 1992

Molecular Cloning, Expression And Site-Directed Mutagenesis Of A Complementary Dna Encoding Rabbit Muscle Fructose 6-Phosphate-1-Kinase., Jau-Yi Li

LSU Historical Dissertations and Theses

This dissertation contains three parts based on my research project which investigates three aspects of rabbit muscle phosphofructokinase (ATP: D-fructose-6-phosphate-1-phosphotransferase, EC 2.7.1.11; PFK). The first part reports the isolation and characterization of two full-length rabbit muscle PFK cDNAs. The DNA sequences of these two cDNAs (cDNA-A and cDNA-B) show an identical coding sequence but heterogeneous 5$\sp\prime$untranslated regions. cDNA-A is formed by removal of a 1.7 Kb upstream intron while cDNA-B retains the 3$\sp\prime$region of this intron. The second part describes the expression of the cDNA in several bacterial hosts. Recombinant rabbit muscle PFK has been expressed at a significant level …

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Modeling Of Circulation And Transport In Terrebonne Bay, Louisiana And Its Implications For Oyster Harvesting Management., Ellen J. Prager Jan 1992

Modeling Of Circulation And Transport In Terrebonne Bay, Louisiana And Its Implications For Oyster Harvesting Management., Ellen J. Prager

LSU Historical Dissertations and Theses

Contamination of oyster-rich waters in south Louisiana by sewage-related wastes is believed to occur on a seasonally varying basis, and pose a serious threat to both human welfare and the local economy. Fluctuations in the meteorologic and oceanographic conditions in the region are believed to be responsible for the variability observed in bacterial concentrations. To gain a better understanding of the relationship between transport processes, environmental forcing, and the potential for contamination, a combined program of in situ measurements and numerical modeling techniques was conducted in the nearshore waters of Terrebonne Bay, Louisiana. A finite element model based on the …

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