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LSU Historical Dissertations and Theses

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Injection Of Species Under Electrical Field To Enhance Bioremediation., Fazle Rabbi Jan 1997

Injection Of Species Under Electrical Field To Enhance Bioremediation., Fazle Rabbi

LSU Historical Dissertations and Theses

Electrokinetics is one of the most viable alternatives for injecting/extracting water, organic and ionic species in low permeability soils as well as heterogeneous media because the transport processes are independent of the pore sizes. A better understanding of the principles offers the opportunity to employ multi-component species transport under electrical fields to inject electron acceptors, nutrients and other process additives for enhancement of in-situ bioremediation in low permeability and heterogeneous media. This study assesses the potential to employ and exploit the principles of multi-component species transport under electrical fields as mean to supplement, enhance and engineer in-situ bioremediation. It was …

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Radio-Frequency Impedance Measurements On Thin Films Of Yttrium Barium Copper Oxide., Vibha K. Pant Jan 1997

Radio-Frequency Impedance Measurements On Thin Films Of Yttrium Barium Copper Oxide., Vibha K. Pant

LSU Historical Dissertations and Theses

The Kosterlitz-Thouless phase transition in epitaxial films of YBCO of varying thickness is studied. The phase transition is found to occur in these films in both zero fields and in perpendicular and parallel magnetic fields up to 0.5 T. In addition, the same transition is seen in a lead film of thickness less than the penetration depth in lead. This measurement is used as a calibration to determine the penetration depth in YBCO for both the zero-field case and perpendicular-field case. Once the penetration depth is determined, the effective thickness of the superconducting layer is calculated for all the films. …

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Orientation Effects On African-American Engineering Students: The Lsu Case., Forest Dent Smith Jan 1997

Orientation Effects On African-American Engineering Students: The Lsu Case., Forest Dent Smith

LSU Historical Dissertations and Theses

Extended orientation courses continue to be introduced as curriculum offerings that assist students to persist in post-secondary institutions. Research on the outcomes of such courses in terms of student retention and achievement is, with regard to race, however, not proceeding at the same pace as orientation course research in general. The purpose of this study was to apply the attrition models of Tinto (1987) and Pascarella, Terenzini, and Wolfe (1986) and examine extended orientation as a contributing factor to the retention and achievement of African-American engineering students. The sample of the study consisted of 354 African-American students who were members …

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Coastal Restoration Using Pipeline-Conveyed Sediments., Catherine Faith Voisin Jan 1997

Coastal Restoration Using Pipeline-Conveyed Sediments., Catherine Faith Voisin

LSU Historical Dissertations and Theses

A spreadsheet program was successfully developed which determines the engineering requirements for pipeline transport of sediments from dredge sites to wetland restorations sites. The program called SLURRY.XLS involves several new correlations. A new correlation for determining the critical velocity of particle transport is presented. New correlations were statistically developed for determining the drag coefficient of particles. The spreadsheet also successfully determines settling velocities of the individual particle sizes in any settling regime. A second spreadsheet program entitled "CONSOL.XLS" uses geotechnical principles of consolidation for determining marsh surface elevation with and without hydraulic fill versus time. The CONSOL.XLS program permits the …

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Sediment Transport Processes In Coarse Gravel-Bed Rivers: An Example From Costa Rica., Karolien Johanna Zita Debusschere Jan 1997

Sediment Transport Processes In Coarse Gravel-Bed Rivers: An Example From Costa Rica., Karolien Johanna Zita Debusschere

LSU Historical Dissertations and Theses

This study was aimed at gaining a better understanding of the sedimentological and morphological characteristics of boulder-dominated, coarse gravel-bed rivers associated with alluvial fans in humid tropical climates and the transport processes of boulder-size clasts within these systems. The study focused on the Rio Toro Amarillo, a braided, coarse gravel-bed river in Costa Rica which drains an active volcano within the Atlantic Watershed of Costa Rica. The investigation involved mapping and measurement of the distribution of braid complexes and channels; gradient, grain-size distribution, lithofacies, and micromorphology of the channel-beds and bar surfaces; elevational differences between channel bed and bar surface; …

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The Moral Atmosphere Of The Elementary School And The Question Of Gender., Suzanne Beauclair Roy Jan 1997

The Moral Atmosphere Of The Elementary School And The Question Of Gender., Suzanne Beauclair Roy

LSU Historical Dissertations and Theses

The purpose of this qualitative study was to explore the moral atmosphere of the elementary school and ask: How does the elementary school principal contribute to the moral atmosphere of the elementary school? In addition to this question, this study also explored the likenesses and differences between male principals and female principals in regard to the degree to which the principal practiced either an "ethic of care" or an "ethic of justice." Four case studies were constructed using data collected from observations and interviews that were conducted in four elementary schools. Also, two female principals and two male principals were …

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The Effects Of Sleep Deprivation On Information Processing, New Learning, And Memory In Mildly Head-Injured Subjects With Post-Concussion Symptoms., Brian Betz Jan 1997

The Effects Of Sleep Deprivation On Information Processing, New Learning, And Memory In Mildly Head-Injured Subjects With Post-Concussion Symptoms., Brian Betz

LSU Historical Dissertations and Theses

Subjects who had sustained a mild head injury (MHI) and uninjured control subjects were examined before and after 36 hours of sleep deprivation. MHI subjects and uninjured controls were selected from among individuals who scored above the 50$\rm\sp{th}$ percentile on the Postconcussion Syndrome Checklist (PCSC), a measure designed to assess the frequency, intensity and duration of postconcussion symptoms. Sixty subjects were divided into four groups: Head injured/sleep deprived, head injured/non-sleep deprived, uninjured/sleep deprived, and uninjured/non-sleep deprived. Performance was compared among the groups on the Selective Reminding Test (SRT) and the Paced Auditory Serial Addition Test (PASAT), which are designed to …

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Fathers As Intervention Agents: Parent Training With Fathers Of Children With Developmental Disabilities., Deirdre West Russell Jan 1997

Fathers As Intervention Agents: Parent Training With Fathers Of Children With Developmental Disabilities., Deirdre West Russell

LSU Historical Dissertations and Theses

Previous research on parent training with children who have developmental disabilities has typically failed to include fathers. Compared to research on mothers of children with disabilities and fathers of normally developing children, little is known about fathers of children who have disabilities. In the present study, effects of behavioral parent training on fathers' parenting behaviors (instruction giving, positive attention, and correct consequences) were evaluated. The experimenter trained four fathers of children with developmental delays in the home using written handouts, verbal instructions, modeling, and performance feedback. Training was directed at increasing correct use of fathers' instruction giving, positive attention following …

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Lie Theory Of Differentiable Transformations On Banach-Type Manifolds., Amadou Belly Guisse Jan 1997

Lie Theory Of Differentiable Transformations On Banach-Type Manifolds., Amadou Belly Guisse

LSU Historical Dissertations and Theses

Let M be a manifold modeled on a Banach space B, and let U be an open subset of M containing the domain of some chart $\varphi$. The aim of this work is to set mathematical foundations (topological, algebraic geometrical) for the theory of pseudosemigroups of local transformations S on M and their infinitesimal generators $L\sp{r}(S,\ U).$ In the first part of this dissertation we define the topology of local uniform convergence, the most suitable in this case, similar to the compact open topology in the finite dimensional case, and show what relationship it has with different topologies. In the …

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The Counsel Group: Rhetorical And Political Contexts Of Court Counsel In "The Canterbury Tales"., Marc S. Guidry Jan 1997

The Counsel Group: Rhetorical And Political Contexts Of Court Counsel In "The Canterbury Tales"., Marc S. Guidry

LSU Historical Dissertations and Theses

The Counsel Group: Rhetorical and Political Contexts of Court Counsel in The Canterbury Tales argues that counsel-taking is one of the most important themes in Chaucer's masterwork. Court counsel--which includes giving the ruler or lord political advice, making laws and treaties, and passing judicial sentence--was a major form of medieval discourse that recurs throughout Ricardian poetry. Indeed, the modern principle of consultative government has its roots in the medieval discourse of counsel and consent. As a diplomat in the service of Richard II, member of parliament, and acquaintance of several leading members of the king's council, Chaucer was well positioned …

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A Methodological Examination Of Naturally Occurring School Improvement In Louisiana Schools., John Albert Freeman Jan 1997

A Methodological Examination Of Naturally Occurring School Improvement In Louisiana Schools., John Albert Freeman

LSU Historical Dissertations and Theses

The study was conducted as an exploratory investigation of naturally occurring school improvement, which refers to improvement in a school's effectiveness status that is achieved without external change forces. The research design for the study used mixed methodologies divided into three phases to identify and examine schools that improved longitudinally in a "natural" environment. Phase I utilized regression (ordinary least squares) methods to create a database containing all elementary schools in Louisiana, categorized by their level of change. As a result, some 20% of the schools in Louisiana were identified as having improved over a three-year period. This approximated an …

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Development Of An Analysis System For Discontinuities In Rigid Airfield Pavements., Michael Ivan Hammons Jan 1997

Development Of An Analysis System For Discontinuities In Rigid Airfield Pavements., Michael Ivan Hammons

LSU Historical Dissertations and Theses

The response of the rigid pavement slab-joint-base structural system is complex, and accurately predicting the response of such a system requires a significant degree of analytical sophistication. The research reported in this dissertation has defined some essential features required to adequately model the system and has demonstrated a technique to develop a comprehensive three-dimensional (3D) finite element model of the rigid pavement slab-joint-foundation structural system. Analysis of experimental data from the 1950s confirms that explicit modeling of dowels is not required to model the structural response of the system. Additional experimental data gathered as a part of this research indicates …

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The Link Between Economic Restructuring, Economic Deprivation, And Serious Crime In American Cities, 1970-1990., Graham Christopher Ousey Jan 1997

The Link Between Economic Restructuring, Economic Deprivation, And Serious Crime In American Cities, 1970-1990., Graham Christopher Ousey

LSU Historical Dissertations and Theses

This dissertation postulates that the economic transition from manufacturing to service employment is a major factor leading to high rates of economic deprivation and crime in major U.S. cities. By integrating theory and research from several substantive areas of sociology, I extend macro-level research in criminology and develop a social organization/social control explanation of city crime rates. I use both cross-sectional and longitudinal regression methods to investigate the direct and indirect effects of a city's industrial structure on race-disaggregated rates of homicide, robbery, and burglary. Based upon data from 113 major cities in the United States, I compute a series …

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Pure Framed Braids And 3-Manifolds., Jonathan Natov Jan 1997

Pure Framed Braids And 3-Manifolds., Jonathan Natov

LSU Historical Dissertations and Theses

This dissertation looks at representations of framed pure braids and compact orientable three manifolds. A representation, $\Phi:Z\sp{n}\oplus P\sb{n}\to \Gamma\sb{n},$ is constructed from the framed pure braid group on n strands to the mapping class group on a surface of genus n. The representation is used to obtain a presentation of the fundamental group. The representation, like that of (M-P), is compatible with Heegaard and Surgery descriptions. An algorithm is presented for transforming mapping class group elements to a stably equivalent pure framed braid, under the correspondence given by the representation. A geometric description, using the representation, is given for multiplication …

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An Adiabatic Bond Charge Model For The Phonon Properties Of Ii-Vi Materials And Superlattices., Bhagwan Das Rajput Jan 1997

An Adiabatic Bond Charge Model For The Phonon Properties Of Ii-Vi Materials And Superlattices., Bhagwan Das Rajput

LSU Historical Dissertations and Theses

I present an extension of the adiabatic Bond Charge model to study lattice dynamics of highly polar II-VI semi-conductors and semi-metals and CdTe-HgTe superlattices grown along (001) and (111) directions. This is the first attempt to study phonons in CdTe-HgTe superlattices. My results for phonon dispersion, specific heat and elastic constants for the six bulk materials are in good agreement with experimental observations. The best parameter sets for the six compounds show trends that are consistent with the parameters for group IV elemental semi-conductors and III-V compounds. For CdTe-HgTe superlattices, I find that the long range Coulomb interaction between particles …

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Everyday Problem-Solving Goals: Contributions Of Age And Individual Differences., Lisa Eileen Norris Jan 1997

Everyday Problem-Solving Goals: Contributions Of Age And Individual Differences., Lisa Eileen Norris

LSU Historical Dissertations and Theses

The purpose of the present research was to examine the contribution of age and individual differences to everyday problem solving, focusing on goal preference. Three pilot studies were conducted to generate interpersonal problem solving goals that were high in emotional arousal and low in emotional arousal. In the Experiment Proper, 40 young and 40 older adults were given 6 vignettes depicting everyday problems. Subjects rated their preference of both high and low experimenter-provided goals. Subjects then completed 4 individual difference questionnaires that measured stimulation intensity, affect intensity, and emotional control. Results showed that both younger and older adults endorsed more …

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Fit And Organizational Turnaround: An Examination Of The Performance Implications Of Strategy Content And Process Fit And Strategy And Cause Of Decline Fit., Christopher L. Shook Jan 1997

Fit And Organizational Turnaround: An Examination Of The Performance Implications Of Strategy Content And Process Fit And Strategy And Cause Of Decline Fit., Christopher L. Shook

LSU Historical Dissertations and Theses

Generally, extant turnaround research has been inductively based and has limited its conceptualization of strategy to strategy content. This study builds on past research by incorporating strategy process and theoretically deriving the causes of decline. In general terms, this study posits that fit (consistency) between strategy process and content is critical to an organization's ability to recover from poor performance. Specifically, the following are considered consistent responses: (1) an entrepreneurial strategy with decentralized decision making and expanded information usage; and, (2) an efficiency strategy with centralized decision making and constricted information usage. Additionally, organizations need to fit their strategy to …

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Created Works, Created Selves: Intersections Of Genre And Self-Fashioning In The New World., Leonard Joseph Vraniak Jr Jan 1997

Created Works, Created Selves: Intersections Of Genre And Self-Fashioning In The New World., Leonard Joseph Vraniak Jr

LSU Historical Dissertations and Theses

John Smith, Roger Williams, and Thomas Morton created images of themselves to attempt to gain position in the New World colonial undertaking, and each uses techniques of specific genres to bolter those images. However, each demonstrates a different degree of self-fashioning. John Smith collects and republishes texts much like Richard Hakluyt did back in England. However, Hakluyt's collections just reproduced texts, while Smith mixed others' writings about his colonial activities with his own work, creating a hybrid text with Smith as the subject. Smith's emphasis upon individual effort mirrors one level of humanistic achievement that Europeans of his era were …

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Ambivalent Idylls: Hardy, Glasgow, Faulkner, And The Pastoral., Stephan Randall Toms Jan 1997

Ambivalent Idylls: Hardy, Glasgow, Faulkner, And The Pastoral., Stephan Randall Toms

LSU Historical Dissertations and Theses

Thomas Hardy, Ellen Glasgow, and William Faulkner used the pastoral mode to show the contradictions, inconsistencies, and dangers in some forms of bucolic idyll. The ambivalence of their texts toward the rural world causes many critics to deny or overlook the presence of the pastoral mode in the work of these three novelists. A study of pastoral literature reveals that its characteristics have never been as fixed as many theorists would like to believe. Pastoral redefines, subverts, and reinvents itself as it interacts with different people, cultures, and languages. The theories of Mikhail Bakhtin help us to understand textual ambivalence …

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An Empirical Analysis Of The Association Between The Intercompany Effects Of Electronic Data Interchange And The Level Of Computerization And Integration Of The Accounting Information System In Small Businesses., Maurice George Durler Jan 1997

An Empirical Analysis Of The Association Between The Intercompany Effects Of Electronic Data Interchange And The Level Of Computerization And Integration Of The Accounting Information System In Small Businesses., Maurice George Durler

LSU Historical Dissertations and Theses

This study investigates intercompany effects on the accounting information system (AIS) of small businesses when electronic data interchange (EDI) is implemented at the request of influential trading partners. The intercompany effects are examined by analyzing the association of the owner/manager's attitude toward computers, the owner/manager's perception that EDI was forced on the business, and the owner/manager's awareness of EDI benefits, with the level of AIS computerization and integration (AIS computerization). Two groups of hypotheses are proposed. The hypotheses in the first group assert that an association exists between the level of AIS computerization, the owner/manager's general computer attitude, and the …

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The Role Of The Unit As A Cognitive Bridge Between Additive And Multiplicative Structures., Nancy Sutton Alexander Jan 1997

The Role Of The Unit As A Cognitive Bridge Between Additive And Multiplicative Structures., Nancy Sutton Alexander

LSU Historical Dissertations and Theses

The rational number domain is known for the great difficulties it presents for students and teachers. As students construct knowledge of fractions, they search for connections to existing knowledge. Procedures from the whole number domain are tried, but many do not work on the new numbers! Recent research has focused on the unit as a way to link whole number and rational number understanding (Behr, Harel, Post & Lesh, 1992). Studies have suggested that students intuitively form units (Lamon, 1994), and that this intuitive knowledge can serve as a foundation for rational number understanding (Lamon, 1994; Mack, 1990). Golding (1994) …

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Implementing Computer-Assisted Language Learning In An Esl Program Serving Adult Refugees From Vietnam: Findings From A Qualitative Case Study., Susan Mary Weishar Jan 1997

Implementing Computer-Assisted Language Learning In An Esl Program Serving Adult Refugees From Vietnam: Findings From A Qualitative Case Study., Susan Mary Weishar

LSU Historical Dissertations and Theses

This qualitative case study explored the implementation of computer-assisted language learning (CALL) in an ESL program serving adult refugees and immigrants from Vietnam. The case consisted of two sub-cases: implementation of CALL in the beginners' class and implementation of CALL in the advanced beginners' class. The investigation, which lasted 46 weeks, was intense and holistic. The researcher was also the administrator of the refugee program. The research methodology used was largely qualitative in design, so that an emic understanding of how the innovation impacted the actors and brought about change in the learning environment could be constructed. Quantitative research methods …

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Optimization And Scale-Up Of Thiarubrine A Production From Hairy Root Cultures Of Ambrosia Artemisiifolia., Santosh G. Bhagwath Jan 1997

Optimization And Scale-Up Of Thiarubrine A Production From Hairy Root Cultures Of Ambrosia Artemisiifolia., Santosh G. Bhagwath

LSU Historical Dissertations and Theses

Thiarubrine A (TA), a plant secondary metabolite synthesized by members of the family Asteraceae possesses antifungal and antiviral properties and is a potential pharmaceutical. The objective of the work was the optimization and scale-up of a bioprocess for the production of TA using hairy root cultures of Ambrosia artemisiifolia. At the inception of the work an established hairy root culture of the model system was used as inoculum in reactor experiments for the development of a protocol for the quantification of TA and in subsequent shake flask experiments to determine optimum culture conditions. TA accumulation closely paralleled growth and then …

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Predictors Of Nonadherence Among Hiv-Infected Outpatients: Psychosocial And Medical Care Factors Associated With Appointment Attendance., Sheryl L. Catz Jan 1997

Predictors Of Nonadherence Among Hiv-Infected Outpatients: Psychosocial And Medical Care Factors Associated With Appointment Attendance., Sheryl L. Catz

LSU Historical Dissertations and Theses

Nonadherence to medical regimens is a critical behavioral threat to the health of HIV-infected individuals. Patients cannot benefit from increasingly efficacious treatments for HIV/AIDs unless they adhere to them. Consistent medical care plays a central role in prolonging life and enhancing quality of life for these individuals. It is therefore essential to understand why many patients do not return reliably for medical services. However, little research has focused on the development of empirically based models of HIV-related nonadherence. Thus, the primary purpose of the present study was to identify factors predictive of HIV-related nonadherence to medical appointments. Demographic, medical care, …

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A Cuban Convent In The Age Of Enlightened Reform: The Observant Franciscan Community Of Santa Clara Of Havana, 1768-1808., John James Clune Jr Jan 1997

A Cuban Convent In The Age Of Enlightened Reform: The Observant Franciscan Community Of Santa Clara Of Havana, 1768-1808., John James Clune Jr

LSU Historical Dissertations and Theses

The reform of Mexican convents in the late eighteenth and early nineteenth century generally has been shown to have been ineffective. I suggest that reform at the Observant Franciscan community of Santa Clara of Havana achieved much better results. While conventual reform in Cuba did not attain perfection, it followed the pattern of administrative, economic and military reform in that it was more effective on the island than it was elsewhere in the Spanish empire. The success of conventual reform in Havana must be attributed to the diligence of the Spanish Crown. Whereas the reform of convents in Mexico became …

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Among Women: Toni Morrison's Mothers, Sisters, And Daughters., Hazel Ruth Reames Caillouet Jan 1997

Among Women: Toni Morrison's Mothers, Sisters, And Daughters., Hazel Ruth Reames Caillouet

LSU Historical Dissertations and Theses

This work explores the relationships between and among women in the fiction of Toni Morrison. Morrison's mothers, sisters, and daughters cannot function without the love and support of a community of women. Those characters who abandon or reject this community become lost to their own world. Morrison women, thus, find themselves in and through other women. The first two chapters establish Morrison's characters in relation to those of other authors in order to show her unique sense of community. Comparing Morrison's work to Virginia Woolf's A Room of One's Own and her emphasis on individuality and isolation illustrates Morrison's dependence …

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An Integration Of Biographical Data And Personality Research Through Sherwood Forest Empiricism: Robbing From Personality To Give To Biodata., Bruce W. Davis Jan 1997

An Integration Of Biographical Data And Personality Research Through Sherwood Forest Empiricism: Robbing From Personality To Give To Biodata., Bruce W. Davis

LSU Historical Dissertations and Theses

Archival data was used to assess the effectiveness of incorporating biodata scoring into extant personality measures. Personality and biodata theories were briefly reviewed and several commonalities were noted. Hypotheses were developed for Conscientiousness, Emotional Stability, Agreeableness, and Openness to Experience. The first three dimensions were expected to predict absenteeism and all four were expected to predict turnover, and empirical scoring was expected to increase predictive validity. Data were collected from three samples (school bus drivers, bus drivers, and law enforcement) and three different personality measures were scored using England's (1971) vertical percent method. Results showed that two of the three …

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The Screen For Adolescent Violence Exposure (Save): Development And Validation., Teresa L. Hastings Jan 1997

The Screen For Adolescent Violence Exposure (Save): Development And Validation., Teresa L. Hastings

LSU Historical Dissertations and Theses

Increased interest in how violence exposure might relate to posttraumatic stress disorder (PTSD) and other adolescent psychopathology has created considerable demand for an assessment tool to assist in this research effort. Though attempts have been made to improve the measurement standards for violence research on youth, available instruments lack adequate psychometric qualities, comprehensiveness, or an acceptable format for slow readers. The present study provided empirical evidence on the utility of the Screen for Adolescent Violence Exposure (SAVE), an instrument designed to both correct the deficiencies of previous measures and to assess violence exposure for school, home, and neighborhood settings. The …

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Representing Shakespeare's "Brave New World": Latin American Appropriations Of "The Tempest"., Ximena Gallardo Jan 1997

Representing Shakespeare's "Brave New World": Latin American Appropriations Of "The Tempest"., Ximena Gallardo

LSU Historical Dissertations and Theses

Representing Shakespeare's "Brave New World" is a descriptive analysis of Latin American appropriations of William Shakespeare's The Tempest. The first part explores the written appropriations by Jose Enrique Rodo, Roberto Fernandez Retamar, Edward Kamau Brathwaite, Aime Cesaire and George Lamming. The second part analyzes four major dramatic appropriations of The Tempest: a 1989 production by the Chilean company El Conventillo, a 1994 adaptation by the Chilean company La Bordada, a 1991 version by the Venezuelan company Rajatabla and a 1992 production by the Mexican company Por Amor Al Arte. Representing Shakespeare's "Brave New World" also explores the connection between these …

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Experimental Analysis Of Aggression., Bethany Ann Marcus Jan 1997

Experimental Analysis Of Aggression., Bethany Ann Marcus

LSU Historical Dissertations and Theses

In 1982, Iwata, Dorsey, Slifer, Bauman, and Richman developed a systematic assessment method to identify the operant functions of self-injurious behavior. In this study, the Iwata et al., method was used to assess the operant functions of aggression displayed by children and adolescents with developmental disabilities. Although researchers have demonstrated that aggression serves operant functions, there has been no comprehensive analysis of aggression using the Iwata et al. method. Twelve children and adolescents participated. The experimental conditions from the Iwata et al. method were replicated (i.e., attention, instructional demand, play, no interaction); also, a tangible positive reinforcement condition was included …

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