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1999

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Integrative Approach To Online Quality Management: Process Control And Packout Verification In An Intelligent Manufacturing Workcell., Turuvekere R. Sethumadhava Jan 1999

Integrative Approach To Online Quality Management: Process Control And Packout Verification In An Intelligent Manufacturing Workcell., Turuvekere R. Sethumadhava

LSU Historical Dissertations and Theses

The current global competition and the economic situation in the United States and the world is forcing industries to produce quality products quickly and at a competitive price. Many industries are aiming towards world class manufacturing objectives like responsive delivery, defect free product and declining cost. Industries in the present environment can survive and produce the quality products to customer expectations only if they implement new technologies. The key element in the success of industries is using the continuous process improvement strategies like reducing process variability and reducing response time to process deviations. Achieving quality in manufacturing processes is an …

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Elongational Rheology Of Polyethylene Melts., Bijan Seyfzadeh Jan 1999

Elongational Rheology Of Polyethylene Melts., Bijan Seyfzadeh

LSU Historical Dissertations and Theses

Elongational melt flow behavior is an important and fundamental concept underlying many industrial plastics operations which involve a rapid change of shape as for example fiber spinning and stretching, bottle blow molding, and film blowing and stretching. Under high process loads polymeric materials experience enormous stresses causing the molecular structure to gain considerable orientation. This event has significant effects on the melt flow behavior and can be measured in terms of elongational viscosity and changes in enthalpy and entropy. Different polymeric materials with unique molecular characteristics are expected to respond uniquely to the elongational deformation; hence, molecular parameters such as …

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An Engineering Equation Of State: Square-Well Statistical Associating Fluid Theory (Saft)., Hertanto Adidharma Jan 1999

An Engineering Equation Of State: Square-Well Statistical Associating Fluid Theory (Saft)., Hertanto Adidharma

LSU Historical Dissertations and Theses

Molecular thermodynamics is an engineering discipline rooted in molecular physics and physical chemistry and aimed at developing practical models that predict the properties of matter. The goal of this work is to develop a molecular thermodynamic model for predicting fluid densities, phase equilibria, and energy functions, such as enthalpy and heat capacity. Chemical engineers need these properties to develop and design new processes and materials, and to make these processes energy efficient and environmentally benign. The approach is to hypothesize a mathematical approximation that captures interactions among real molecules on the basis of a molecular theory called the statistical associating …

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Executive Compensation And The Investment Opportunity Sets Of Initial Public Offerings., Tanya S. Nowlin Jan 1999

Executive Compensation And The Investment Opportunity Sets Of Initial Public Offerings., Tanya S. Nowlin

LSU Historical Dissertations and Theses

This study examines how the components of CEO compensation contracts vary with characteristics of initial public offering firms (IPOs). There are two major steps in the analysis. The first step investigates whether IPOs exhibit variation in characteristics that theory predicts affect compensation contracts. The second step investigates whether these differences across firms are related to the use of accounting versus non-accounting performance evaluation measures, levels of base salary and cash bonuses, and the value of stock options for CEOs. Results from this study support the importance of modeling compensation components separately. Theoretical constructs differ depending on the type of compensation …

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Understanding Congressional Responsiveness., Phillip Jude Ardoin Jan 1999

Understanding Congressional Responsiveness., Phillip Jude Ardoin

LSU Historical Dissertations and Theses

This dissertation addresses a simple question: Why are some members of congress very responsive to the ideological preferences of their constituency while others appear to ignore their constituency? Although numerous scholars have explored this issue, they have consistently: (1) limited their analyses to the influence of member characteristics while ignoring the potentially significant influence of constituent factors and (2) failed to test a single comprehensive model of congressional responsiveness that considers the full range of member and constituent factors hypothesized to influence variation in congressional responsiveness. This dissertation directly addresses these two problems by developing and testing a comprehensive model …

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Convergent And Divergent Validity Of The Learning Transfer Questionnaire., Annette Irving Bookter Jan 1999

Convergent And Divergent Validity Of The Learning Transfer Questionnaire., Annette Irving Bookter

LSU Historical Dissertations and Theses

The Learning Transfer Questionnaire (LTQ) was developed as a comprehensive instrument to identify potential factors in the work environment that influence learning transfer (Holton & Bates, 1996). The purpose of the study was to examine the construct validity of the LTQ by focusing on convergent and divergent validity. Specific objectives included: to identify a set of theoretically-based, psychometrically-valid measures which could be used the examine the convergent and divergent validity; and, utilizing correlation analysis, to examine the associations between the 16 LTQ factors and the identified measures. Scales from seventeen measurement instruments were utilized as comparison measures to correlate with …

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Parental Participation In A Title I Family Literacy Program: Results From A Mixed -Model Study., Karen Boudreaux Jan 1999

Parental Participation In A Title I Family Literacy Program: Results From A Mixed -Model Study., Karen Boudreaux

LSU Historical Dissertations and Theses

A family literacy, Title I program was studied to determine the attitudes and beliefs which affect parental participation in a family literacy program. The theoretical framework of cultural capitol assumed that parents who chose to participate in a family literacy program possess different components in their cultural capitol than parents who choose not to participate. There were 3 Hypotheses and 6 Study Questions which guided this parallel mixed model study with dominant (qualitative)-less dominant (quantitative) design. A Title I Family Literacy Program located in a large, urban, public school system was the study site. The sample size consisted of 40 …

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Picosecond Resonance Raman Studies Of Interligand Electron Transfer Rates Of Ruthenium Polypyridal Complexes., Danny Ray Anderson Jan 1999

Picosecond Resonance Raman Studies Of Interligand Electron Transfer Rates Of Ruthenium Polypyridal Complexes., Danny Ray Anderson

LSU Historical Dissertations and Theses

Interest in ruthenium polypyridal complexes stems from the metal-to-ligand charge transfer state (MLCT) that can be generated by photons of sufficient energy and the interligand electron transfer (ILET) that occurs after this state. Direct measurements using picosecond resonance Raman spectroscopy were made to determine the rates of ILET in a series of mixed ligand ruthenium polypyridal complexes. To perform these studies, a novel regenerative amplified Nd:YAG laser system had to be designed and built at Louisiana State University. Once this system was completed, a apparatus was designed for measuring transient absorption spectra in the 200--300 nm wavelength range on a …

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"A Perfect War": Politics And Parties In Louisiana, 1824--1861., John Michael Sacher Jan 1999

"A Perfect War": Politics And Parties In Louisiana, 1824--1861., John Michael Sacher

LSU Historical Dissertations and Theses

My dissertation explores Louisiana's political development from 1824 to 1861. Many antebellum state studies have been written, but none focus specifically on Louisiana. While sharing the rest of the South's commitment to slavery and cotton, Louisiana possessed atypical attributes including: a unique ethnic composition, a sugar cane crop dependent upon a protective tariff, and the presence of New Orleans, the South's foremost commercial city. Louisiana's antebellum political situation resulted from the interaction of these distinctive traits with the characteristics that Louisiana shared in common with the rest of the United States. The primary focus of this political narrative is the …

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Helium And Heavy Ion Measurements With The Crres Satellite., Edmund Gary Clayton Jan 1999

Helium And Heavy Ion Measurements With The Crres Satellite., Edmund Gary Clayton

LSU Historical Dissertations and Theses

The CRRES satellite was in service from July 1990 to October 1991, during a period of high solar modulation and solar activity. The ONR-604 experiment aboard CRRES measured helium with isotopic resolution in the energy range 38--110 MeV/nucleon, and heavy ions through iron at 200--500 MeV/nucleon. Although solar modulation was high throughout the CRRES mission, the mission included periods of solar quiescence as well as a number of large solar flares and associated solar energetic particle events. Measurements were made of helium and heavy ions during both the quiet times and the flare periods. A study was made to search …

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Phase Equilibria Of Ethylene Copolymers In Sub- And Supercritical Fluids., Ka Chun Chan Jan 1999

Phase Equilibria Of Ethylene Copolymers In Sub- And Supercritical Fluids., Ka Chun Chan

LSU Historical Dissertations and Theses

Phase equilibria of polyethylene and ethylene-copolymers in sub- and supercritical solutions are investigated in this work. Fluid-liquid and fluid-solid phase transitions data are measured for tetracontane, a prototype of linear polyethylene, in sub- and supercritical propane, poly(ethylene-co -hexene-1) in suband supercritical. propane and ethylene + 1-hexene mixture, and poly(ethylene-co-octene-1) in sub- and supercritical propane and ethylene. The experiments are carried out in a batch optical cell equipped with a transmitted-light probe. The experimental data are correlated and predicted using two equations of state derived from of the Statistical Associating Fluid Theory (SAFT). In the case of tetracontane + propane, increasing …

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Territoriality And Commerce: Political Conflict Over The Panama Canal In Geographic Perspective., Robert William Aguirre Jan 1999

Territoriality And Commerce: Political Conflict Over The Panama Canal In Geographic Perspective., Robert William Aguirre

LSU Historical Dissertations and Theses

This dissertation examines the recurring conflict between the United States and the Republic of Panama regarding the Canal and the Canal Zone by analyzing three salient geographic issues: first, the extent to which international commerce or national security required the building of a canal in Central America; second, ambiguities arising out of notions of sovereignty and extraterritoriality in United States constitutional law; and third, the political controversies between an inland society and a maritime society in Panama itself The theoretical implications of Edward Fox's work in his geographic history of French politics and the works of Panamanian historians and sociologists …

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Preparing New Teachers To Use Technology: A Comparative Study Of Preservice Teacher Education Programs., Patricia Ann Duhon Jan 1999

Preparing New Teachers To Use Technology: A Comparative Study Of Preservice Teacher Education Programs., Patricia Ann Duhon

LSU Historical Dissertations and Theses

The purpose of this descriptive study was to describe and analyze the technology components in three teacher education programs, and to investigate the technological preparedness of recently graduated first-year elementary (K--5) teachers. The research questions addressed were: (a) How are the teacher education programs at each university in this study preparing students to integrate technology into their classrooms and instruction, and how do the programs compare? (b) How do recently graduated first-year teachers at each university rate their skills in using technology, and how do their ratings compare? (c) How and to what extent do recently graduated first-year teachers at …

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German Opera And Operetta At The New Orleans National Theatre, 1866--1878., H. Edward Dacus Jr Jan 1999

German Opera And Operetta At The New Orleans National Theatre, 1866--1878., H. Edward Dacus Jr

LSU Historical Dissertations and Theses

The New Orleans National Theatre was built in 1866 by a group of wealthy German-Americans for the purpose of providing a place for the performance of German theatrical productions. The theatre saw eight seasons between 1866 and 1878 in which some type of operatic productions were performed, generally from fall through early spring of 1866--1867, 1867--1868, 1868--1869, Winter 1870, 1870--1871, 1871--1872, 1872--1873, and 1877--1878. A local theatrical company functioned in six of those seasons, including 1866--1867, the fall of the 1867--1868 season, 1870--1871, 1871--1872, 1872--1873, and 1877--1878. During the intervening seasons, from 1868 through the Winter of 1870, operatic productions …

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Increasing Accuracy In Children's Verbal Self -Report Of Reinforcers., Gina Michelle Digiovanni Jan 1999

Increasing Accuracy In Children's Verbal Self -Report Of Reinforcers., Gina Michelle Digiovanni

LSU Historical Dissertations and Theses

Several studies have examined the relationship between self-report of behavior and actual behavior (Baer, Williams, Osnes, & Stokes, 1985; Bernstein & Michael, 1990; Risley & Hart, 1968). Results from such studies indicate poor correspondence between verbal self-report and actual behavior. This finding is particularly true for children (Guevremont, Osnes, & Stokes, 1986). However, few studies have examined conditions under which the accuracy of self-report procedures can be increased. The current study evaluated whether the accuracy of children's verbal self-report of reinforcers could be increased by modifying antecedent conditions. Specifically, the current study examined the effects of two antecedent variables (i.e., …

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Systematics Of The Common Garter Snake, Thamnophis Sirtalis., John Jeffrey Boundy Jan 1999

Systematics Of The Common Garter Snake, Thamnophis Sirtalis., John Jeffrey Boundy

LSU Historical Dissertations and Theses

Character variation was examined in the snake Thamnophis sirtalis . Initially, 187 characters were examined on five populations (OTUs). Only 12% of the characters failed to show geographic variation by ANOVA. A reduced data set of 72 characters remained after eliminating those that were invariant and correlated. The reduced data set was analyzed for interpopulation variation between 37 OTUs, of T. sirtalis. Numbers of significantly differentiated characters between OTUs, determined by ANOVA, were used to generate a UPGMA tree. The tree placed Texas and Chihuahuan populations as sister groups to all other OTUs, and grouped OTUs from west of the …

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Gaps In College Biology Students' Understanding Of Photosynthesis: Implications For Human Constructivist Learning Theory And College Classroom Practice., Phyllis Baudoin Griffard Jan 1999

Gaps In College Biology Students' Understanding Of Photosynthesis: Implications For Human Constructivist Learning Theory And College Classroom Practice., Phyllis Baudoin Griffard

LSU Historical Dissertations and Theses

The main research question of this study was: What gaps in biochemical understanding are revealed by a range of university introductory biology students as they work through a critically acclaimed multimedia program on photosynthesis, and what are the corresponding implications for elaboration of the Ausubel-Novak-Gowin Learning Theory (ANG, now Human Constructivism)? Twelve students, mixed for ability, gender and ethnicity, were recruited from two sections of "Bio 101." Before and after instruction in photosynthesis, in-depth clinical interviews were conducted during which participants completed a range of cognitive tasks such as sorting, concept mapping, explaining and predicting. Some tasks involved interacting with …

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The Perceptions Of Members Of Boards Of Directors For State Associations Serving Community-Based Development Organizations Regarding *Policy And Governance., Ernie Troy Hughes Jan 1999

The Perceptions Of Members Of Boards Of Directors For State Associations Serving Community-Based Development Organizations Regarding *Policy And Governance., Ernie Troy Hughes

LSU Historical Dissertations and Theses

The primary purpose of this study was to determine the perceptions of members of boards of directors for state associations serving CBDOs regarding policy and governance, procedures and how they are achieving organizational goals and objectives. The target population for the study was defined as members of boards of directors of state associations serving CBDOs. The instrument used in this study was a researcher designed questionnaire. It was comprised of two sections---demographics and perceptions of the roles, responsibilities, and accomplishments of the organization. As the literature review established, boards of directors play an important role in the life of associations …

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Development Of Pseudostationary Phases For Separations In Electrokinetic Chromatography., Judson Leroy Haynes Iii Jan 1999

Development Of Pseudostationary Phases For Separations In Electrokinetic Chromatography., Judson Leroy Haynes Iii

LSU Historical Dissertations and Theses

The research presented in this dissertation covers pseudo-stationary phase development for separations in electrokinetic chromatography (EKC). Micelles and cyclodextrins have traditionally served as the most popular pseudo-stationary phases (PSPs) used in EKC. However, the development and implementation of PSPs, which have improved properties over traditional ones, are necessary to extend the utility of electrokinetic chromatography. This dissertation covers research contributions, chapter by chapter, to the area of PSP development made by the author. In addition to this, Chapter 1 covers a brief history of chromatography and the fundamentals of capillary electrophoresis and EKC. The first pseudo-stationary phase developed was a …

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Input Manipulations, Working Memory, And Word Learning Abilities Of Children., Janice Elisabeth Horohov Jan 1999

Input Manipulations, Working Memory, And Word Learning Abilities Of Children., Janice Elisabeth Horohov

LSU Historical Dissertations and Theses

A storybook task was used to examine the word learning abilities of children with and without specific language impairment (SLI). Speech rate, sentence complexity and word type were manipulated within the narrative. A nonword repetition task also was used to examine the relation between working memory and word learning. Fifty-four children participated; a third were classified as SLI and the others served as either age-matched or language-matched controls. For comprehension, a significant main effect for word type was observed with verb scores higher than noun scores. Main effects for group, race, and rate also were observed and these were qualified …

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Relating Process Philosophy To The Classroom: An Exploration Of Alfred North Whitehead's Educational Vision., Janis Pardue Hill Jan 1999

Relating Process Philosophy To The Classroom: An Exploration Of Alfred North Whitehead's Educational Vision., Janis Pardue Hill

LSU Historical Dissertations and Theses

This dissertation is an exploration of the connections between the process philosophy and the educational thinking of Alfred North Whitehead. It develops the theory that Whitehead's philosophy of process is evident in "embryonic" form in his earlier educational writings, as well as The Aims of Education and Other Essays (1929), and that the complexities of process thinking are as intertwined and interconnected with the principles of process educational thought as the actual entity is intertwined and interconnected with the complex relations involved in its concrescence. The ultimate aim is to provide a clear picture of Whitehead's vision of education and …

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To Thine Own Self (And Thine Associates) Be True: The Strategic Management Of Competing Identities Among Academic Women., Shirley A. Keeton Jan 1999

To Thine Own Self (And Thine Associates) Be True: The Strategic Management Of Competing Identities Among Academic Women., Shirley A. Keeton

LSU Historical Dissertations and Theses

Social positions and social relationships are important in structuring self-concept. The self is often viewed as composed of identities related to the social positions an individual occupies. These identities are generally conceptualized as being organized hierarchically based on the individual's relative commitment to each. I contribute to this work by developing an Identity Management Model in which I propose three strategies (compartmentalization, amalgamation, and reprioritization) individuals use to manage completion among identities. In this model, I identify characteristics of (a) the identities, (b) the social environment and (c) the individual's social network that are likely to influence which strategy is …

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Political Liberalization In Post -Communist Central Asia: A Comparative Study., Muhammad Islam Jan 1999

Political Liberalization In Post -Communist Central Asia: A Comparative Study., Muhammad Islam

LSU Historical Dissertations and Theses

This dissertation seeks to explain variation in political liberalization among three post-communist Central Asian countries: Kazakhstan, Kyrgyzstan, and Uzbekistan. These countries share several common political outcomes such as the dominance of the executive and a high degree of statism. Yet they also witnessed significant variation in political liberalization within a short period of time after their independence in 1991. The fact that these countries share several common political, socioeconomic, cultural, and historical features makes the rise of this political variance more intriguing than the rise of the above, however, salient, common political outcomes among them within few years of their …

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The Influence Of Interpersonal Communication Variables On Group Attraction And Group Communication Satisfaction., Michelle Diane Kirtley Jan 1999

The Influence Of Interpersonal Communication Variables On Group Attraction And Group Communication Satisfaction., Michelle Diane Kirtley

LSU Historical Dissertations and Theses

This investigation explored the effects of the interpersonal communication concepts of willingness to communicate, self-monitoring, and loneliness on the group outcomes of group attraction and group communication satisfaction. Using the Willingness to Communicate Scale (McCroskey, & Richmond, 1990), Lennox and Wolfe's (1984) Revised Self-monitoring Scale, the Revised UCLA Loneliness Scale (Russell, Peplau, & Cutrona, 1980), an adaptation of Byrne's (1969) original Interpersonal Judgment Scale, and an adaptation of Hecht's (1978) Communication Satisfaction Inventory, communication dispositions were analyzed in relationship to group attraction and group communication satisfaction. Consistent with expectations, the results show that loneliness mediated reported group communication satisfaction. Individuals …

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College Students' Understanding Of Stereochemistry: Difficulties In Learning And Critical Junctures., Gary Lester Lyon Jan 1999

College Students' Understanding Of Stereochemistry: Difficulties In Learning And Critical Junctures., Gary Lester Lyon

LSU Historical Dissertations and Theses

Because stereochemistry is an important part of both high school and college chemistry curricula, a study of difficulties experienced by students in the learning of stereochemistry was undertaken in a one-semester college organic chemistry course. This study, conducted over the course of two semesters with more than two hundred students, utilized clinical interviews, concept maps, and student journals to identify these difficulties, which were then tabulated and categorized. Although student journals were not a productive source of information, the types of difficulties that emerged from the concept maps were compared and contrasted with those that emerged from the clinical interviews. …

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Numerical Simulation And Experimental Verification Of Cone Penetration Rate And Anisotropy In Cohesive Soils., Daekyu Kim Jan 1999

Numerical Simulation And Experimental Verification Of Cone Penetration Rate And Anisotropy In Cohesive Soils., Daekyu Kim

LSU Historical Dissertations and Theses

This research focuses on the effects of cone penetration rate and anisotropy on the results of piezocone penetration and subsequent dissipation tests. Finite element analyses, and miniature piezocone penetration and dissipation tests in a calibration chamber were performed, then the results were compared. The anisotropic elastoplastic-viscoplastic; bounding surface model was chosen as a soil model and it was implemented into a computer program, ANCALBR8. The isotropic/anisotropic triaxial compression, creep tests, and oedometer tests were performed to determine the model parameter values and verify the model. The model showed very good agreement with the triaxial test results. The theoretical formulation was …

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Executive Compensation, Performance, Board And Ownership Structure: A Simultaneous Equations Approach., Ayalew A. Lulseged Jan 1999

Executive Compensation, Performance, Board And Ownership Structure: A Simultaneous Equations Approach., Ayalew A. Lulseged

LSU Historical Dissertations and Theses

Incentive contracts and monitoring by boards of directors and blockholders are alternative internal mechanisms to ensure that managers act in the interests of shareholders. Most prior research on compensation and performance ignores endogeneity among board, ownership and compensation structure (mix of pay) variables. Ignoring the endogeneity leads to inconsistent parameter estimates. I address the endogeneity problem by using a simultaneous equations model. The three equations in the system are mix of pay, compensation and performance. The results are consistent with efficient contracting. Mix of pay depends on characteristics of the firm and alternative governance mechanisms. The relation between stockholders and …

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Determination Of Consolidation Characteristics In Fine Soils Evaluated By Piezocone Tests., Beyongseock Lim Jan 1999

Determination Of Consolidation Characteristics In Fine Soils Evaluated By Piezocone Tests., Beyongseock Lim

LSU Historical Dissertations and Theses

There has been an increasing trend to use the piezocone penetration test (PCPT) as an in situ tool of choice for determining the consolidation and flow characteristics of cohesive soils. The focus of this research is to study various factors that would affect the determination of consolidation characteristics in fine soils evaluated by piezocone tests. Immediate changes in excess pore pressure and tip resistance after penetration arrest for dissipation were experimentally identified. Undrained shear strength, influence of stress history, and lateral stress coefficient effects on the penetration pore pressure were investigated. By using a two-stage slurry consolidation technique, cohesive soil …

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Effects Of 4 X 4 Block Scheduling On Student Discipline, Faculty Collegiality, And Obstacles To Teaching In Louisiana High Schools., Mary Helen Smith Mccoy Jan 1999

Effects Of 4 X 4 Block Scheduling On Student Discipline, Faculty Collegiality, And Obstacles To Teaching In Louisiana High Schools., Mary Helen Smith Mccoy

LSU Historical Dissertations and Theses

During the last decade, the allocation of time emerged as an important reform initiative in secondary schools. For nearly a century, secondary school students attended approximately six to seven classes daily. In the early 1990s, more flexible scheduling configurations were proposed, including block scheduling. One block scheduling format, known as 4 x 4, allows students to attend four classes daily for 90-minute blocks of time. Block scheduling advocates claimed benefits for students, teachers, instructional innovation, and school climate, but provided little empirical base for these claims. The present study examined the effects of 4 x 4 block scheduling on four …

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The Effect Of Accurate/Inaccurate Teacher Instruction, High/Low Teacher Delivery, And On - /Off -Task Student Behavior On Musicians' Evaluation Of Teacher Effectiveness., Melissa Katia Madsen Jan 1999

The Effect Of Accurate/Inaccurate Teacher Instruction, High/Low Teacher Delivery, And On - /Off -Task Student Behavior On Musicians' Evaluation Of Teacher Effectiveness., Melissa Katia Madsen

LSU Historical Dissertations and Theses

The primary purpose of this investigation was to determine the effect of accurate/inaccurate teacher instruction, high/low teacher delivery and on-/off-task student behavior on musicians' evaluations of teaching effectiveness. An additional purpose of this study was to determine whether differences in the musicians' evaluative responses of teacher effectiveness would occur due to differences in their experience level. Subjects (N = 168) were musicians and were grouped accordingly: (1) grades 6--8; (2) grades 9--12; (3) undergraduate; and (4) experienced teacher. The subjects viewed and evaluated a videotape of eight teaching segments for teacher effectiveness. The segments had been simulated by the investigator …

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