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Lsu General Catalog 1995-1996, Louisiana State University And Agricultural And Mechanical College Jan 1995

Lsu General Catalog 1995-1996, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.

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Recurrences In Driven Quantum Systems, V. Poduri, D. A. Browne, U. Patil Jan 1995

Recurrences In Driven Quantum Systems, V. Poduri, D. A. Browne, U. Patil

Faculty Publications

We calculate the recombination probability for an atom interferometric experiment in which the beams interfere after one of them has been exposed to an intense laser. We choose a model one-dimensional atomic potential and find that if the intensity of the laser is large, there are recurrences in the recombination probability as a function of time, irrespective of the frequency of excitation. This implies that the particles exposed to the laser have a large amplitude to be in the localized initial state in spite of having sufficient energy to escape from the binding potential. © 1995 The American Physical Society.

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Head-On Collision Of Two Black Holes: Comparison Of Different Approaches, Peter Anninos, Richard H. Price, Jorge Pullin, Edward Seidel, Wai Mo Suen Jan 1995

Head-On Collision Of Two Black Holes: Comparison Of Different Approaches, Peter Anninos, Richard H. Price, Jorge Pullin, Edward Seidel, Wai Mo Suen

Faculty Publications

A benchmark problem for numerical relativity has been the head-on collision of two black holes starting from the ''Misner initial data,'' a closed form momentarily stationary solution to the constraint equations with an adjustable closeness parameter μ0. We show here how an electric mixture of approximation methods can provide both an efficient means of determining the time development of the initial data and a good understanding of the physics of the problem. When the Misner data are chosen to correspond to holes initially very close together, a common horizon surrounds both holes and the geometry exterior to the horizon can …

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Knot Polynomial States Of Quantum Gravity In Terms Of Loops And Extended Loops: Some Remarks, Cayetano Di Bartolo, Rodolfo Gambini, Jorge Griego, Jorge Pullin Jan 1995

Knot Polynomial States Of Quantum Gravity In Terms Of Loops And Extended Loops: Some Remarks, Cayetano Di Bartolo, Rodolfo Gambini, Jorge Griego, Jorge Pullin

Faculty Publications

In this paper we review the status of several solutions to all the constraints of quantum gravity that have been proposed in terms of loops and extended loops, based on knot polynomials. We discuss pitfalls of several of the results, and in particular the issues of covariance and regularization of the constraints in terms of extended loops. We also propose a formalism for "thickened out loops," which does not face the covariance problems of extended loops and may allow to regularize expressions in a consistent manner. © 1995 American Institute of Physics.

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Study Of Two Instrumental Variable Methods For Closed-Loop Multivariable System Identification., Jeannette Santos-Cordero Jan 1995

Study Of Two Instrumental Variable Methods For Closed-Loop Multivariable System Identification., Jeannette Santos-Cordero

LSU Historical Dissertations and Theses

New control strategies are based on the model of the process and it is thus necessary to identify the systems to be controlled. It is also often necessary to identify them during closed-loop operation in order to maintain efficient operation and product quality. Some results of multivariable closed-loop identification carried out on a simulated 2 x 2 linear time-invariant system, using two new versions of instrumental variable methods called IV4D and IV4UP as the identification methods, are presented. In each case pseudorandom binary signals (PRBS), or dithers, are applied to the outputs of the feedback controllers. Algorithms IV4D and IV4UP …

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Solution Behavior Of Cascade Polymers., Keunok Han Yu Jan 1995

Solution Behavior Of Cascade Polymers., Keunok Han Yu

LSU Historical Dissertations and Theses

This thesis consists of four chapters. In the first, a general introduction is presented. Chapter 2 deals with the characterization of polyamidoamine (PAMAM) cascade polymers. Diffusion coefficients of four different generations (generation 3, 5, 7, and 9) of PAMAMs were measured in aqueous solutions by dynamic light scattering. Generation 3 and 5 were characterized again, after labeling with fluorescein isothiocyanate, by fluorescence photobleaching recovery. The dynamic light scattering results depended on the concentration of added salt in the low salt limit, while the fluorescence values were almost independent of salt concentration. The polyelectrolyte effects, or solution nonidealities, strongly affected light …

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An Empirical Analysis Of Criteria Utilized To Determine Hospital Revenue Bond Ratings., Ann L. Watkins Jan 1995

An Empirical Analysis Of Criteria Utilized To Determine Hospital Revenue Bond Ratings., Ann L. Watkins

LSU Historical Dissertations and Theses

The hospital industry has undergone radical changes in the past fifteen years with respect to the production and distribution of health care services. The introduction of Medicare's prospective payment system, the struggle to retain physicians and competitive bidding for managed care contracts have created increasing risks for hospitals. Coupled with the increased amount of debt sold by health care issuers, these changes have made determining the information utilized in predicting hospital revenue bond ratings a topic of significant interest to investors, creditors and regulators. The primary purpose of this study was to develop an initial model which might be used …

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Use Of A Natural Swamp For Wastewater Treatment., Xiaowei Zhang Jan 1995

Use Of A Natural Swamp For Wastewater Treatment., Xiaowei Zhang

LSU Historical Dissertations and Theses

The purposes of this research were to determine the possibility of using a natural forested swamp for advanced wastewater treatment in coastal Louisiana, and to evaluate the wastewater impact on the ecosystem. The study was performed by comparing two portions of a nutrient deficient swamp separated by a ridge. One portion received secondarily treated municipal wastewater at a rate of $6.3\times10\sp6$ L/day and the other served as a control. Concentrations of BOD$\sb5$, TSS, DO, EC, TDS, pH, N, P, S, CI, K, Ca, Mg, Na and trace metals were monitored. Results showed that the wastewater added nutrients into the swamp. …

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Development Of An Optimal Systems Criteria In The Performance Evaluation Of A Crawfish Sorting Machine., Rommel Gaac Tangonan Jan 1995

Development Of An Optimal Systems Criteria In The Performance Evaluation Of A Crawfish Sorting Machine., Rommel Gaac Tangonan

LSU Historical Dissertations and Theses

This study aimed to: (1) establish a set of optimally configured guidelines for performance testing of crawfish sorting machines; (2) examine biophysical characteristics of crawfish and machine-related design parameters; and, (3) write computer programs covering the essential aspects of the crawfish sorting process. Three crawfish sorting machines were tested in the Spring of 1994 and 1995: (1) cylindrical roller sorter machine, (2) diverging vane belt sorter machine, and (3) grid shaker sorter machine. Both the cylindrical roller sorter and the diverging vane belt sorter separated crawfish into four groups: peeler, medium, large and jumbo; the grid shaker sorter, however, separated …

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Using Drawing Tasks To Communicate Ideas About Photosynthesis: A Conceptual Change Strategy For Use In The Elementary School Classroom., Byron Levy Launey Jan 1995

Using Drawing Tasks To Communicate Ideas About Photosynthesis: A Conceptual Change Strategy For Use In The Elementary School Classroom., Byron Levy Launey

LSU Historical Dissertations and Theses

It is difficult for a teacher to determine if a learner has acquired an accurate concept of the topic being taught. Most of the children in this study had sufficient language skills to communicate successfully with their teachers even though they held inappropriate concepts of photosynthesis. This study examined the use of drawing tasks to assess children's ideas related to photosynthesis in an elementary-grade classroom. Two research questions guided the study to determine if this strategy was a valid improvement over traditional methods of classroom instruction. The first question asked if elementary-grade students receiving instruction about photosynthesis would acquire and …

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Synthesis, Characterization, And Diels-Alder Reactivity Of Polymers Containing The 2,3,6,7-Anthracenetetracarboxyl Unit., James Larry Morris Jan 1995

Synthesis, Characterization, And Diels-Alder Reactivity Of Polymers Containing The 2,3,6,7-Anthracenetetracarboxyl Unit., James Larry Morris

LSU Historical Dissertations and Theses

Anthracene is a fluorescent molecule that undergoes chemical reactions as a Diels-Alder diene. Incorporation of the anthracene nucleus into a polymer system imparts upon it the characteristics of anthracene. This work in concerned with the synthesis of a suitable 2,3,6,7-anthracenetetracarboxylic acid based monomer. The monomer is then polymerized and the resultant polymer is crosslinked in a Diels-Alder reaction. The synthesis of 2,3,6,7-anthracene derivatives is underdeveloped. The difficulty in the synthesis of these compounds has probably precluded their development. Herein is described the synthesis of 2,3,6,7-anthracenetetracarboxylic acid in three simple steps inexpensively and in high yield. Older methods required more steps …

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A Two Dimensional Vertically Integrated Moving Boundary Hydrodynamic Model In Curvilinear Coordinates., Vibhas Aravamuthan Jan 1995

A Two Dimensional Vertically Integrated Moving Boundary Hydrodynamic Model In Curvilinear Coordinates., Vibhas Aravamuthan

LSU Historical Dissertations and Theses

A two dimensional, vertically averaged, hydrodynamic mathematical model on an adaptive boundary fitted grid is developed. This model addresses numerous drawbacks in the traditional finite difference models and incorporates such features as moving boundaries due to tidal incursion, and the ability to resolve irregular coastline geometries. A semi-implicit finite difference scheme is developed in order to overcome time step restrictions due to the gravity wave stability criterion. An eulerian-lagrangian formulation is used to solve the hydrodynamic equations on unsteady grid systems. The model is applied to study circulation features in Lake Pontchartrain (a medium sized physical system) and to the …

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Gelatin Of Rodlike Polymers., Deborah L. Tipton Jan 1995

Gelatin Of Rodlike Polymers., Deborah L. Tipton

LSU Historical Dissertations and Theses

Gelation of rodlike polymers was studied by a variety of techniques. Fourier transform video microscopy was used to quantitatively study poly(p-phenylenebenzobisthiazole) in sulfuric acid on a preformed gel and as the gelation process occurred. Differential scanning calorimetry was used to determine the extent of the solvent shell surrounding molecules of hydroxypropyl cellulose upon gel formation and melting. Various light scattering experiments were performed on gels made from poly($\gamma$-benzyl-$\alpha$,L-glutamate) in toluene. Some of the analysis is geared towards a percolative type mechanism. The results and some suggestions for further work are presented.

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The Effect Of Tuning Stimulus Vibrato, Timbre, And Frequency On Tuning Accuracy Of University, High School, And Junior High School Instrumentalists., Wilma L. Benson Jan 1995

The Effect Of Tuning Stimulus Vibrato, Timbre, And Frequency On Tuning Accuracy Of University, High School, And Junior High School Instrumentalists., Wilma L. Benson

LSU Historical Dissertations and Theses

The purpose of this study was to examine intonation in response to a variety of conventional stimuli. Specifically, the tuning accuracy of university, high school, and junior high school woodwind, brass, and string instrumentalists was compared when responding to taped stimuli of A = 440 Hz played on oboe non-vibrato and oboe with vibrato; and pitches produced electronically on a Korg$\sp{\rm TM}$ tuner of A = 430 Hz; A = 435 Hz; and A = 445 Hz. In question were the effects of vibrato, timbre, and frequency on tuning accuracy. Subjects (N = 198) were university music students (n = …

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The Influence Of Subject Sophistication On The Ability To Feign Mild Head Injury Symptoms., Roy Clayton Martin Jan 1995

The Influence Of Subject Sophistication On The Ability To Feign Mild Head Injury Symptoms., Roy Clayton Martin

LSU Historical Dissertations and Theses

The present study examined the effects that personal experience with head injury, task specific instruction and brain injury knowledge have on the ability to feign postconcussion symptoms and neuropsychological performance patterns seen in mild head injured patients. A sample of non-head injured and head injured college students served as the experimental subjects. These subjects were randomly assigned to conditions in which they were told to either do their best, feign deficits consistent with mild head injury without task specific instruction, or feign deficits while given task specific instruction. Subjects were also classified into one of two head injury knowledge groups …

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Achievement Goals And Motivational Climates For Physical Education., Jerry Wilson Boone Jan 1995

Achievement Goals And Motivational Climates For Physical Education., Jerry Wilson Boone

LSU Historical Dissertations and Theses

The focus of this study was the examination of relationships of dispositional goal orientations and perceived motivational climates to learning strategies, attributions for causes of success, practice patterns, and achievement. The study also examined the effects of an intervention designed to implement mastery focused strategies in physical education. Specifically, the research questions addressed were: (a) How do students' dispositional goal orientations relate to the perceived motivational climate in physical education classes? (b) How do students' goal orientations and the perceived motivational climate relate to attributions for success and learning strategies employed in a physical education class? (c) Are practice patterns …

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Applications Of Some Robust Statistics In Forestry., Kunjin Shi Jan 1995

Applications Of Some Robust Statistics In Forestry., Kunjin Shi

LSU Historical Dissertations and Theses

All statistical procedures are based on a set of assumptions, such as normality, independence and linearity. In practical applications, these assumptions can rarely be satisfied completely. Deviation from classical parametric assumptions may result in loss of efficiency or even lead to misleading conclusions. Robust statistics that have been extensively studied in the past two decades provide alternatives to deal with such problems. This research was designed to investigate the applicability of robust estimation of population means and robust linear regression in forestry. Five robust estimators, Huber's minimax estimator, Hampel's three parameter redescending estimator, Andrew's wave estimator, Tukey's biweight estimator, and …

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A Validation Study Of The Adolescent Behavior Checklist Using Clinical And Non-Clinical Samples., Christina Duncan Adams Jan 1995

A Validation Study Of The Adolescent Behavior Checklist Using Clinical And Non-Clinical Samples., Christina Duncan Adams

LSU Historical Dissertations and Theses

The purpose of this study was to evaluate the discriminant validity of scores from the Adolescent Behavior Checklist (ABC), an adolescent self-report measure of ADHD symptomatology for adolescents ages 11-17 years (n = 60). Validity was assessed through correlational, univariate, and discriminant function analyses using three groups: (1) adolescents diagnosed with ADHD; (2) adolescents currently experiencing a mood and/or anxiety disorder; and (3) adolescents with no major psychological disorder. Convergent and divergent validity of the ABC factor scores was demonstrated through correlational results with: (1) parent- and adolescent-report of ADHD symptoms during structured psychiatric interviews; and, (2) scores on questionnaires …

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Tectonic Subsidence Of The Cretaceous Western Interior Basin, United States., Ming Pang Jan 1995

Tectonic Subsidence Of The Cretaceous Western Interior Basin, United States., Ming Pang

LSU Historical Dissertations and Theses

The tectonic subsidence history recorded in middle Cenomanian to early Campanian (96 to 80 Ma) strata in the U.S. Cretaceous Western Interior basin was studied by applying two-dimensional flexural backstripping techniques to six regional stratigraphic sections across different segments of the basin. Results indicate that tectonic subsidence over the 16 m.y. study interval consists of two distinct components: a westward-increasing flexural subsidence confined within a few hundred kilometers of the thrust belt, and a spatially uniform "residual" subsidence that affected the entire basin. The residual subsidence does not represent signals of eustatic sea level changes but instead reflects epeirogenic movements …

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Articulation Of French Programs Between Secondary And Postsecondary Institutions: Language And Culture Performance Achieved By High School Students Enrolled In French Ii And College Students Enrolled In Second Semester Of French., Fatima Chajia Jan 1995

Articulation Of French Programs Between Secondary And Postsecondary Institutions: Language And Culture Performance Achieved By High School Students Enrolled In French Ii And College Students Enrolled In Second Semester Of French., Fatima Chajia

LSU Historical Dissertations and Theses

The purpose of this dissertation was to examine whether or not there are differences in the performance achieved by high school students (enrolled in French II) and college students (enrolled in second semester of French), on tests of culture, listening, reading, grammar, speaking and writing. The results from the background questionnaires and the six tests show that: (1) Selfplacement is the most common procedure used by university false-beginners; (2) Overall, college students scored significantly higher than their high school counterparts on all six tests; (3) College true- and false-beginners scored significantly higher than high school students on tests of listening, …

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Development Of A Femtosecond Time-Resolved Raman Spectrometer For Hemoglobin Studies., Junbo Chen Jan 1995

Development Of A Femtosecond Time-Resolved Raman Spectrometer For Hemoglobin Studies., Junbo Chen

LSU Historical Dissertations and Theses

A femtosecond time-resolved Raman spectrometer is developed to study the ultrafast dynamics of hemoprotein. The laser system consists of a dye laser synchronously pumped by the SHG of compressed ML Nd:YAG laser pulse, and a Ti:sapphire regenerative amplifier using chirped-pulse-amplification technique. The laser system provides 350 fs pulses output with 0.4 mJ/pulse energy at the repetition rate of 1 kHz. The tunability covers the whole Ti:sapphire lasing range with the use of different laser dye. Femtosecond time-resolved resonance Raman experiment shows that the ligand photodissociation quantum yield depends on the nature of ligand. With three ligands studied, CO has about …

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The Effects Of Teacher Efficacy, School Climate, And Stages Of Concern On The Implementation Of A Physical Science Program., Jennifer B. Baird Jan 1995

The Effects Of Teacher Efficacy, School Climate, And Stages Of Concern On The Implementation Of A Physical Science Program., Jennifer B. Baird

LSU Historical Dissertations and Theses

This study investigated the implementation of a physical science education innovation in a large, urban school system. The program began in the summer of 1993 with the selection of two teachers from each of seventeen elementary schools. Participants were selected by program staff from among a pool of applicants with an interest in science education. The goals of the program included retraining teachers to implement hands-on, inquiry-based physical science and performance-based assessments. Teachers were provided with instructional materials, including science kits, and on-going support and assistance from science and assessment specialists. Specifically, the study examined the relationship between the independent …

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Data Analysis Using Reconstructability Theory., Deky Dicky Joe Gouw Jan 1995

Data Analysis Using Reconstructability Theory., Deky Dicky Joe Gouw

LSU Historical Dissertations and Theses

In this dissertation, we develop a new data analysis method using reconstructability theory, particularly k-systems theory. K-systems or Klir systems theory is a branch of reconstructability theory and provides a setting wherein common problems in statistics can be solved using the power of information theory by invoking the maximum entropy principle. The method is superior over classical statistical data analysis. The approach starts with the concept of variable interaction in reconstructability analysis (RA), We then use the RA definition of interaction to improve the quality of main and interaction effects in data analysis. With classical statistical data analysis, we need …

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The Efficacy Of Scaffolding Strategies In Holistic Language Intervention On Language And Phonologically Delayed Children., Monica Lynne Bradshaw Jan 1995

The Efficacy Of Scaffolding Strategies In Holistic Language Intervention On Language And Phonologically Delayed Children., Monica Lynne Bradshaw

LSU Historical Dissertations and Theses

This study investigated the efficacy of scaffolding strategies within holistic language intervention with six language and phonologically delayed preschool children. The scaffolding condition was compared to two experimental controls using either wh-questions or print awareness techniques. It was hypothesizsd that the use of scaffolding strategies would result in greater semantic displacement, syntactic complexity, and phonological complexity than the use of either the wh-questions or print awareness controls. Efficacy of the conditions was measured by (a) semantic levels, (b) mean length of utterance, and (c) percent of words produced correctly. An alternating treatment was employed in the single-subject study. The subjects …

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A Comparison Of Ecological Factors Affecting Two Species Of Lotic Molluscs., Paul David Johnson Jan 1995

A Comparison Of Ecological Factors Affecting Two Species Of Lotic Molluscs., Paul David Johnson

LSU Historical Dissertations and Theses

This study examined habitat-mediated differences in the population structure of two species of stream molluscs, the Louisiana pearl-shell mussel, Margaritifera hembeli, a protected species, and Elimia semicarinata, a pleurocerid gastropod. In 1991 I located Margaritifera hembeli in a drainage system where it was previously unknown, and describe here the distribution of M. hembeli in the Bayou Rigolette drainage in Grant Parish, Louisiana. The mussel was limited to small second- and third-order lotic systems. Of several physicochemical and habitat parameters, specific conductance, Ca$\sp{+2}$ concentration, sediment particle size, sediment compaction and channel width were most important in explaining abundance. Substratum stability was …

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Notions Of Happiness In Rousseau's "Julie"., Peter Buttross Jr Jan 1995

Notions Of Happiness In Rousseau's "Julie"., Peter Buttross Jr

LSU Historical Dissertations and Theses

This enquiry first establishes both the importance and the general meaning of the notions of happiness in Rousseau's corpus. Both private and public happiness are seen as the overarching intent of his life as a thinker. The possibility of a tertiary notion of happiness--between private and public--is presented with the introduction of the subject work Julie; or The New Heloise. Themes considered at some length are passion/virtue, happiness/duty, love/friendship, as well as the notions of Platonic and courtly love--not to mention the dichotomy motion/rest. At the end of Part One of the novel, the lovers are forcibly separated, and the …

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Gas Kick Behavior During Bullheading Operations In Vertical Wells., William Leo Koederitz Jan 1995

Gas Kick Behavior During Bullheading Operations In Vertical Wells., William Leo Koederitz

LSU Historical Dissertations and Theses

An experimental study to investigate the bullheading method of well control was performed. The primary focus of the investigation was the downward displacement of gas by liquid, requiring consideration of counter-current flow behavior. Experiments were conducted in a full-scale well, using a computer-controlled downhole fracture simulation system; water and low-viscosity drilling mud were used for bullheading fluids. The results from these experiments provided simple models for the estimation of removal efficiency and maximum pump pressure during bullheading operations. These models are empirical and are limited to conditions within the range of the experimental data. A two-phase flow analysis of the …

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The Effects Of Shear Stress On The Crystallization Kinetics Of Syndiotactic Polystyrene., Douglas Henry Krzystowczyk Jan 1995

The Effects Of Shear Stress On The Crystallization Kinetics Of Syndiotactic Polystyrene., Douglas Henry Krzystowczyk

LSU Historical Dissertations and Theses

Industrial polymer processes involve the application of heat and stress, often resulting in deformations at high shear rates and molecular orientation. This affects both the crystallization rates and the melting temperature of semi-crystalline polymers. Knowledge of the variance of these properties are vital commercially due to their effect on processing techniques, production rates and mechanical properties. An experimental apparatus was designed and constructed that allowed the study of the effects of shear on syndiotactic polystyrene melt samples. This apparatus consisted of a parallel plate rheometer that used changes in shear stress, as well as infrared detection equipment that utilized changes …

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A Cross-Case Analysis Of Middle School Reading Teachers' Theoretical Orientations As They Relate To Classroom Practices., Shirley Theriot Fogleman Jan 1995

A Cross-Case Analysis Of Middle School Reading Teachers' Theoretical Orientations As They Relate To Classroom Practices., Shirley Theriot Fogleman

LSU Historical Dissertations and Theses

Each interaction between teachers and students is a reflection of the theory that these professionals, sometimes unknowingly, posit about what should be occurring in their classrooms. The purpose of this study is to explore the differences between middle school language arts teachers' beliefs about how children actually read a text, and how these teachers translate these beliefs into classroom practices. The beliefs we hold about reading comprehension are essential to our understanding about how we should instruct and assess our students in our classes. Leu and Kinzer (1988) refer to two beliefs' frameworks of comprehension in reading, based on the …

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The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden Jan 1995

The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden

LSU Historical Dissertations and Theses

The purpose of the study was to investigate the effects of the CAI design features--metacognitive advice and control of instructional sequence upon student achievement and attitude toward the instructional program and content. The topic of the CAI was designing comparative research to control threats to internal validity. Four versions of the CAI were created based upon the combinations of the bi-level independent variables--metacognitive advice and control of instructional sequence. The participants of the study were graduate students from four departments at Louisiana State University. The independent variables were metacognitive advice, control of instructional sequence, and the participant's self-directed learning readiness …

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