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Synthesis Of Phosphonate Derivatives And Phosphonate Peptide Analogues., Maria De Fatima Fernandez
Synthesis Of Phosphonate Derivatives And Phosphonate Peptide Analogues., Maria De Fatima Fernandez
LSU Historical Dissertations and Theses
A general method for the preparation of a wide variety of phosphonate derivatives, including phosphonamides, thiophosphonamides, thiosphonates, and dithiophosphonates, from reduced phosphorus intermediates has been developed. Esters (or thioesters) of H-phosphinates are converted to the highly reactive phosphonochloridites by non-oxidative activation with dichlorotriphenylphosphorane. The phosphonochloridites react readily with alcohols, amines and thiols and after in situ oxidation or sulfurization, phosphonate derivatives can be isolated in moderate to very good yields (47-85%). This method was used to synthesize a thiophosphonate dipeptide, Boc-Val-$\Psi$(P(S)(OtBu)O) Ala-OCH$\sb3$ (15b), two thiophosphonamide dipeptides, Boc-Val-$\Psi$ (P(S)(OtBu)NH) Gly-OCH$\rm\sb2CH\sb3$ (16b) and Fmoc-Aib-$\Psi$ (P(S)(OBn)NH) Gly-OCH$\rm\sb2CH\sb3$ (20), and two phosphonate dipeptides, Fmoc-Aib-$\Psi$ …
"I Am Contemporary!": The Life And Times Of Penny Arcade., Matthew Sheridan Ames
"I Am Contemporary!": The Life And Times Of Penny Arcade., Matthew Sheridan Ames
LSU Historical Dissertations and Theses
"I Am Contemporary!": The Life and Times of Penny Arcade explores the career of performance artist Susana Ventura, a.k.a. Penny Arcade, and establishes her position in the American post-war avant-garde and counter-culture performance scene. The document is chronological, examining first Ventura's fifties childhood, moving toward her rebellious sixties, through her introspective seventies, and eventually into a performance career in the New York avant-garde scene of the eighties and nineties. Each main chapter explores three elements of these time periods, first establishing the social background, then moving to an overview of counter-cultural performance, and finally examining Ventura's work within that time …
Adaptive Harmonic Blocking Compensators., Shih-Min Hsu
Adaptive Harmonic Blocking Compensators., Shih-Min Hsu
LSU Historical Dissertations and Theses
This dissertation explores a new method of adaptive compensation and harmonic suppression in distribution systems. The compensator under development and investigation integrates a harmonic blocking compensator (HBC) with an adaptive balancing compensator (ABC) resulting in an adaptive harmonic blocking compensator (AHBC). Such a compensator can be used for compensating reactive power, for symmetrizing supply currents, for protecting the distribution system against load generated current harmonics and, consequently, the voltage harmonic distortion caused by non-linear loads. Harmonic blocking compensators are designed for compensating fixed loads, and they are not adaptive devices, while the adaptive capability of compensators is becoming more and …
An Information Integration Theory Analysis Of Tax Preparers' Perceived Risk Of Reporting Aggressively On Clients' Income Tax Returns., Velmer Carlene Eddlemon
An Information Integration Theory Analysis Of Tax Preparers' Perceived Risk Of Reporting Aggressively On Clients' Income Tax Returns., Velmer Carlene Eddlemon
LSU Historical Dissertations and Theses
Prior research shows that income tax return preparers influence the income tax compliance decisions of their clients. Information about the risk that income tax return preparers perceive in reporting aggressively on their clients' income tax returns may help the Internal Revenue Service (IRS) reduce the tax gap that exists in the United States today. This study investigates the cognitive algebra that income tax return preparers use to combine the probability of the IRS's assessing penalties for misstatements on their clients' income tax returns with the consequences (penalties, etc.) of those decisions in forming risk perceptions for reporting aggressively on their …
Polymerase Chain Reaction (Pcr) Assay For The Detection And Differentiation Of The Virulent Strains Of Mycoplasma Mycoides Subspecies Mycoides "Small Colony" Type From The Vaccine T1 Strain In Purified Dna And In Field Samples From Africa., Abdullahi Sheikh Hassan Kalif
Polymerase Chain Reaction (Pcr) Assay For The Detection And Differentiation Of The Virulent Strains Of Mycoplasma Mycoides Subspecies Mycoides "Small Colony" Type From The Vaccine T1 Strain In Purified Dna And In Field Samples From Africa., Abdullahi Sheikh Hassan Kalif
LSU Historical Dissertations and Theses
Two primer sets were manufactured from the cytadhesin P1 gene of M. Pneumoniae in an attempt to amplify homologous sequences in M. mycoides subsp. mycoides "SC" Type in a search for a P1-like gene in the latter organism. The first primer set MP-2 amplifies a 488 bp fragment in M. pneumoniae. The second primer set MP-3 amplifies a 303 bp fragment bracketing the 13-amino acid binding domain in the same organism. Both primer sets amplified the expected fragments in all the virulent strains of M. mycoides subsp. mycoides "SC" type. The primer sets did not however amplify the expected fragments …
Physical And Functional Characterization Of Long Terminal Repeat Of Equine Infectious Anemia Virus., Soo Ho Kim
Physical And Functional Characterization Of Long Terminal Repeat Of Equine Infectious Anemia Virus., Soo Ho Kim
LSU Historical Dissertations and Theses
The U3 region of long terminal repeat (LTR) of equine infectious anemia virus (EIAV) contains transcriptional regulatory elements. To identify the elements in prototype (P), fetal donkey dermal cell-adapted (A), and two variant (V) EIAV LTRs, DNase I footprinting, gel shift, and transient gene expression assays were performed. The assays used U937 monocytic cells which can be induced into macrophages by 12-O-tetradecanoylphorbol-13-acetate (TPA). For study of AP1 sites, c-Jun/AP1 was also used. Footprinting with nuclear extracts from TPA-induced and uninduced U937 cells localized methylated DNA-binding protein (MDBP), PEA2, AP1, PU.1, and CCAAT enhancer-binding protein (C/EBP) sites as common elements in …
Chemical Effects On Microbial And Sensory Qualities Of Catfish In Planktonic And Dynamic Systems., Michael Adrain Land
Chemical Effects On Microbial And Sensory Qualities Of Catfish In Planktonic And Dynamic Systems., Michael Adrain Land
LSU Historical Dissertations and Theses
Listeria monocytogenes has the potential to be a serious pathogen for the compromised health segment of our population (immunocompromised, young, elderly and the pregnant). While the infectious dose is generally believed to be high 1.0 $\times$ 10$\sp6$, infectious dosages of 1.0 $\times$ 10$\sp3$ have been reported. Listeria monocytogenes poses a threat because of several factors: ubiquity in nature, isolation from fresh/salt waters, soil, ruminates and 17% of the human population. Listeria monocytogenes can colonize surfaces within 20 minutes, evade sanitizing, and is capable of growth from 37$\sp\circ$C to below refrigeration temperature. Fish and seafoods are high in water activity and …
Performance Analysis Of Multi-Echelon Inventory Systems., David Lee Peak
Performance Analysis Of Multi-Echelon Inventory Systems., David Lee Peak
LSU Historical Dissertations and Theses
A two-echelon inventory and distribution system consisting of a centralized warehouse and N stores is considered in this paper. The inventories of the warehouse as well as the stores are controlled by periodic review (s,S) ordering policies. The expected levels of capital investment, storage space needs, capacity requirements for delivery vehicles, and reliable customer service are issues of great importance to practitioners when considering the introduction of a central warehouse and transportation system. Helmut Schneider, Dan Rinks, and Peter Kelle have developed a methodology that has been shown to provide approximately optimal (s,S) policies under various demand conditions, and are …
Allocation Of Two Dimensional Parts Using A Shape Reasoning Heuristic., Henry Joseph Lamousin Iii
Allocation Of Two Dimensional Parts Using A Shape Reasoning Heuristic., Henry Joseph Lamousin Iii
LSU Historical Dissertations and Theses
A technique is outlined for the allocation of irregular parts onto arbitrarily shaped resources. Placements are generated by matching complementary shapes between the unplaced parts and the remaining areas of the stock material. The part and resource profiles are characterized to varying levels of detail using geometric "features". Information contained in the features is used at each stage of processing to intelligently select and place parts on the resource. Techniques for the efficient handling of complex profiles and other practical implementation issues are described. The utility of the proposed approach is verified using diverse problems from a marine fabrication facility. …
Efficacy Of Communicative Reading Strategies As An Instructional Approach For Adult Low-Ability Readers., Sara S. Reichmuth
Efficacy Of Communicative Reading Strategies As An Instructional Approach For Adult Low-Ability Readers., Sara S. Reichmuth
LSU Historical Dissertations and Theses
Twelve adult low-ability readers participated in a pretest-posttest control group study investigating the efficacy of Communicative Reading Strategies (CRS) as an instructional reading approach. Six adults received CRS instruction and constituted the experimental group. The remaining six adults received skill-based instruction and served as the control group. All participants demonstrated instructional level reading skills at or below a fifth grade level and completed 40 hours of instruction. Changes in performance on measures of word recognition, comprehension, and reading rate from pretest to posttest were used to compare CRS and control groups. Results of Mann Whitney U analyses revealed that both …
Control Of African Striga Species By Natural Products From Native Plants., Joseph Kipronoh Rugutt
Control Of African Striga Species By Natural Products From Native Plants., Joseph Kipronoh Rugutt
LSU Historical Dissertations and Theses
Obligate root-parasitic flowering plants of the genus Striga (family Scrophulariaceae) cause considerable yield reductions of various crops in tropical and semi-tropical countries. Mature Striga species (witchweeds) plants produce copious quantities of minute seeds which remain dormant in the soil for many years until exudates from roots of various host plants induce germination. Economically effective means of control of Striga species are not yet available for small-scale farmers in developing countries. In the present study data is presented which indicate that the two most effective Striga control measures are crop rotation and suicidal germination. For the first time we have analyzed …
Virtual Central Control., Raghuram A. Yedatore
Virtual Central Control., Raghuram A. Yedatore
LSU Historical Dissertations and Theses
A distributed system is a set of cooperating computers (processes) communicating with each other to achieve a common goal. They are broadly classified as centralized and decentralised systems. In a centralized system, a single computer plays the role of central coordinator and controls all the system activities. Whereas in a decentralized system, all the cooperating processes have an equal role to play, therefore solutions to problems involve instructing all the processes and coordinating their actions. Although a centralized system facilitates program development, it has serious drawbacks. If the coordinator fails, the system effectively breaks down. Also, the coordinator can become …
From Object-Oriented Specification To Implementation: A Formal Refinement Methodology., Moonsung Yoo
From Object-Oriented Specification To Implementation: A Formal Refinement Methodology., Moonsung Yoo
LSU Historical Dissertations and Theses
Traditionally, software development models use different methods and techniques in each phase from specification through design to implementation. Significant changes in the representations between phases have been common. The formal development method based on formal specification and stepwise development has been suggested to reduce the change in representation. The formal development method consists of a formal specification and verified design. In the formal specification step, a formal specification language is used to specify an accurate, consistent, and complete system. Vienna Development Method (VDM) is one of the most widely used formal specification languages. A verified design guides the development of …
Ostinato Patterns In The Opera "Antigone" By Carl Orff And An Original Composition For Organ And Orchestra, "In Nomine"., Wieslaw Sta Rentowski
Ostinato Patterns In The Opera "Antigone" By Carl Orff And An Original Composition For Organ And Orchestra, "In Nomine"., Wieslaw Sta Rentowski
LSU Historical Dissertations and Theses
This dissertation consists of two parts: a discussion of the ostinato patterns in Carl Orff's five-act opera Antigone and an original composition for organ and orchestra, In Nomine. The purpose of Part One is to discuss the different applications of the ostinato idea throughout the opera Antigone as this is an integral part of the work. This part is divided into five chapters. The first chapter focuses on biographical background of the composer, his stylistic transformations, and his interest in a total musical theater. The second chapter introduces definitions and music examples of the ostinato and ground bass, associated with …
The Social Context Of Interpersonal Citizenship Behavior: A Mid-Range Theory And Test Of A Model., Randall Patrick Settoon
The Social Context Of Interpersonal Citizenship Behavior: A Mid-Range Theory And Test Of A Model., Randall Patrick Settoon
LSU Historical Dissertations and Theses
Current day interest in acts of cooperation in organizations can be traced to classical writers such as Barnard (1938) and Roethlisberger and Dickson (1939), and more recently to Katz and Kahn(1966, 1978). Building on these foundations, considerable empirical research has examined what has been labeled organizational citizenship. Organizational citizenship behaviors are not specified in job descriptions or recognized by the organization's formal reward system. Yet, they are generally held to be essential to organizations in that they contribute to efficiency and effectiveness (Organ, 1988). Recently, researchers have called for the development of specific, mid-range theoretical models of organizational citizenship behavior …
Longitudinal Dispersion And Interstitial Velocity Relationship In Subsurface Flow Constructed Wetlands., Gianna M. Cothren
Longitudinal Dispersion And Interstitial Velocity Relationship In Subsurface Flow Constructed Wetlands., Gianna M. Cothren
LSU Historical Dissertations and Theses
Treatment of municipal and rural wastewater using subsurface flow constructed wetlands (SFCW's) is growing in popularity. These systems often consist of an excavated cell containing 2-3 in. rock with the wastewater level maintained below the media surface. A SFCW is a natural form of wastewater treatment which removes organics and nutrients based on the attached growth of microorganisms on crushed rocks where biological reactions take place. The currently accepted design procedure is based on the first order plug flow model, although tracer studies have shown that flow conditions are not well represented by the plug flow condition. This design rationale …
Spatial Distribution And Sequential Sampling Of The Rice Water Weevil, Lissorhoptrus Oryzophilus Kuschel, In Louisiana., Mark Alan Muegge
Spatial Distribution And Sequential Sampling Of The Rice Water Weevil, Lissorhoptrus Oryzophilus Kuschel, In Louisiana., Mark Alan Muegge
LSU Historical Dissertations and Theses
Studies were conducted in Louisiana to determine the spatial and temporal distribution of rice water weevil (RWW), Lissorhoptrus oryzophilus Kuschel, adults, eggs, larvae and pupae in drill-seeded rice. In addition, three sequential sampling plans, Kuno's fixed precision sequential sampling plan, the sequential probability ratio test (SPRT), and 2-SPRT, were developed and evaluated to establish an accurate and economically efficient sampling plan for RWW larvae in drill-seeded rice in Louisiana. Values obtained for the aggregation indices, b, from Taylor's power law, $\beta$, from Iwao's patchiness regression and, k, from the negative binomial distribution indicated that RWW larvae were nearly randomly distributed …
Effects Of Organic Waste Amendments, Herbicides, And Weed Hosts On Pythium Root Rot Of Sugarcane., Nimal Mudiyans Dissanayake
Effects Of Organic Waste Amendments, Herbicides, And Weed Hosts On Pythium Root Rot Of Sugarcane., Nimal Mudiyans Dissanayake
LSU Historical Dissertations and Theses
Three objectives that could lead to improved understanding and management of Pythium root rot of sugarcane were addressed. First, the potential of amending soil with different organic wastes to suppress root rot was evaluated, and the biological and chemical properties of wastes that may contribute to disease suppression were identified. Secondly, herbicide interactions with root rot affecting sugarcane growth were assessed. Finally, the role of weeds in disease epidemiology was investigated. Greenhouse and laboratory studies indicated soil amendment with some organic wastes offers a sustainable disease management option through biological control. Amendment with different wastes had variable effects. Sewage sludge, …
Crystal Plasticity Model With Back Stress Evolution., Wei Huang
Crystal Plasticity Model With Back Stress Evolution., Wei Huang
LSU Historical Dissertations and Theses
In this work, two backstress models and a modified yield criterion for crystalline materials are proposed. The proposed work is for the identification of texture development in metals when subjected to large deformation processes such as rolling, extrusion, stamping and deep drawing, etc. These models are incorporated into a numerical procedure similar to the approaches by Asaro (1983), Peirce et al. (1983), Nemat-Nasser (1983), and Rashid and Nemat-Nasser (1992). Also, similar to their approaches, a two-dimensional crystal structure is used for a feasibility study of the model by solving a simple shear problem. More importantly, the proposed formulations are strain …
Magneto-Optical Properties Of Cubic Ferromagnetic Metals., Neeraj Arvind Mainkar
Magneto-Optical Properties Of Cubic Ferromagnetic Metals., Neeraj Arvind Mainkar
LSU Historical Dissertations and Theses
I present a first principles, all electron, linear combination of Gaussian orbitals calculation of a comprehensive collection of magneto-optical properties of the cubic ferromagnetic metals nickel, iron and cobalt based on density functional theory. Among the many magneto-optical effects, this is the first ab initio study of the equatorial Kerr effect for absorption in the optical as well as the X-ray region, where it is called the X-ray magnetic linear dichroism. I find that in the optical region, this effect is of the order of 2% while in the X-ray region, it is of the order of 1% for the …
Interrelationships Among Macrophomina Phaseolina, Criconemella Xenoplax, And Tylenchorhynchus Annulatus On Grain Sorghum (Sorghum Bicolor)., Ida Wenefrida
LSU Historical Dissertations and Theses
Microplot experiments were established in 1992, 1993, and 1994 to investigate the relationships between the fungal pathogen Macrophomina phaseolina, and a nematode community comprised of Criconemella xenoplax and Tylenchorhynchus annulatus on grain sorghum in Louisiana. A factorial treatment arrangement was employed and consisted of two sorghum hybrids (De Kalb DK 50 and Pioneer hybrid 8333), three levels of M. phaseolina (0, 10, and 100 colony forming units (cfu)/g soil) and three nematode inoculum levels (0, X, and 2X). Nematode inoculum at X levels were 929, 1139, and 1445 for C. xenoplax and T. annulatus per pot in 1992, 1993, and …
Composted Municipal Waste And Fertilizer Effects On Soils And Sugarcane., Xianliang Wan
Composted Municipal Waste And Fertilizer Effects On Soils And Sugarcane., Xianliang Wan
LSU Historical Dissertations and Theses
Application of composted municipal waste to agricultural lands has potential benefits to improve soil fertility and crop yield. It may lead to accumulation of heavy metals within soils and leaching of nutrients and heavy metals into the ground water. The objectives of this study were to investigate: (1) the effects of composted municipal waste and fertilizer on soil chemical properties and sugarcane elemental uptake and yield; and (2) the leachability of elements in compost amended soils. Results of three field experiments from a Baldwin silty clay loam and a Memphis silt loam showed that compost application at $\ge$33.6 Mg/ha increased …
Factors Influencing Completion Status Of Undergraduate Nursing Students Who Initiate Progression Appeals., Karen Diane Hadskey Blanchard
Factors Influencing Completion Status Of Undergraduate Nursing Students Who Initiate Progression Appeals., Karen Diane Hadskey Blanchard
LSU Historical Dissertations and Theses
The purpose of this descriptive research study was to determine the existence of predictors for success of nursing students who are granted appeals, based on special circumstances, by the University Progression and Retention Committee of Southeastern Louisiana University. This study investigated demographics (age, marital status, gender, race, residence, semester of appeal, and educational background) of 302 nursing students from Southeastern Louisiana University (January 1988, to May 1995) that appealed to the Progression and Retention Committee of the university to continue in the nursing program. Success predictor criteria provided to nursing faculty and students can be used as a positive resource …
Transactional Interactions And Growth In The Global Economy: A Multiple-Network Analysis., Kuo-Hua Chen
Transactional Interactions And Growth In The Global Economy: A Multiple-Network Analysis., Kuo-Hua Chen
LSU Historical Dissertations and Theses
This dissertation postulates that the trend of increasing globalization of economic activities within the shifting features of the world economy has been the dominating force transforming and integrating the international economic structure. I adopt ecological theory's external view of system structure, and focus on a more relational view of international exchange. Using network methodology, I analyze the effects of global transactional interactions on economic growth. This research extends concepts of the macro-urban approach to an analysis of international transactions. Based on data for 93 nations over a 20-year period (1970-1978 and 1978-1990) from three transactional networks (93 x 93 matrices), …
Elizabeth Bishop's Poetic Personae: The Dark And The Bright., Joan Louise Fields
Elizabeth Bishop's Poetic Personae: The Dark And The Bright., Joan Louise Fields
LSU Historical Dissertations and Theses
The intrigue of Elizabeth Bishop's poetic texts lies in the design of her sonic elements, vocalized by her dramatic personae as she directs her play of words. She manages a cohesion among her concept or content, the phonemic nature of her chosen words, and the rhythmic phrasing of her lines. Her poetic texts convey an enigmatic, yet natural, tonal quality that is produced by the juxtaposition of opposite strains or "strands" of voice--one shadowed, darker; the other light, brighter. These strands include the voice of a little girl as well as mature male and female speakers. Beneath, yet interwoven with …
Interaction Between Ap-1 Proteins And Glucocorticoid Receptors In Regulation Of Lymphokine Activated Killer (Lak) Cell Activity In The Equine Species., Jing Bu
LSU Historical Dissertations and Theses
This project was performed in order to determine whether exercise-induced increases in plasma cortisol concentrations may be responsible for enhanced lymphokine activated killer (LAK) cell activity. Secondly, this project included preliminary experments which were designed to test the hypothesis that stimulatory effects of cortisol on LAK cell activity may be due to cross-talk between signalling systems important to glucocorticoid effects and stimuli which act through nuclear activator protein-1 (AP-1). Blood samples were collected from resting horses in order to determine whether the animals had normal plasma glucocorticoid concentrations. All horses included in these experiments had $10\sp{-7}$ to $10\sp{-8}$M cortisol concentrations …
Social Tolerance For Drug Use Among Junior High School Students In Taipei, Taiwan., San-Yi Li
Social Tolerance For Drug Use Among Junior High School Students In Taipei, Taiwan., San-Yi Li
LSU Historical Dissertations and Theses
This study examines the degree of social tolerance for drug use among junior high school students in Taipei, Taiwan, and the relationships between their social tolerance for drug use and their individual, family, and drug environment characteristics. The theories of anomie, socialization, social control, and differential association are used as a guide for these examinations. The data for this study were collected from a sample of 604 students from 16 classes in three grades at five schools using a self-administrated questionnaire designed for this purpose. These classes were randomly selected from all 85 junior high schools which were stratified by …
The Effects Of Social Constraints On Peer Evaluation., Charlotte Mcinnis Curtis
The Effects Of Social Constraints On Peer Evaluation., Charlotte Mcinnis Curtis
LSU Historical Dissertations and Theses
Writers unable to improve their own work benefit when an outside reader suggests revision strategies, but what constraints shape the advice students give? This research presents a descriptive/naturalistic study of how students in one composition class viewed peer evaluation. The research explores how students' expectations of the procedure shape their comments and presents a system to code comments for revision/praise content. It considers nine editors' responses to the same essays. The Flower et al. three-part self-revision categories were modified and expanded to code editors' comments: those that referenced an essay's basic features ("thesis") were coded revision level (RL) 1; comments …
Xanthomonas Albilineans Detection, Identification And Infectivity Titration In Sugarcane., Silvio Aparecido Lopes
Xanthomonas Albilineans Detection, Identification And Infectivity Titration In Sugarcane., Silvio Aparecido Lopes
LSU Historical Dissertations and Theses
A PCR method with primers for t-RNA gene spacers was used for detection of Xanthomonas albilineans (Xa), the causal agent of leaf scald disease of sugarcane. A DNA segment of approximately 170 bp was amplified for Xa strains, but also for X. campestris pv. campestris, X. campestris pv. translucens and two sugarcane bacterial endophytes. Good agreement between PCR and isolation to detect Xa from sugarcane sap was observed. PCR was faster allowing pathogen detection in less than one day. Both methods resulted in low detection frequencies from asymptomatic plants, which may contain Xa below detection limits. The lowest limit for …
Le Temps Dans Les Oeuvres De Jorge Luis Borges, Edouard Glissant Et Saint-John Perse., Valerie Irene Loichot
Le Temps Dans Les Oeuvres De Jorge Luis Borges, Edouard Glissant Et Saint-John Perse., Valerie Irene Loichot
LSU Historical Dissertations and Theses
This dissertation compares conceptions of time as they appear in the works of Jorge Luis Borges, Edouard Glissant and Saint-John Perse. It attempts to stage a series of encounters among these writers, encounters or "relatings" in the sense of correlation and narration. The first relation is that expressed by Paul Ricoeur, who states that time becomes human only when it is articulated in narration and narration becomes human only when it describes the features of temporal experience. The second relation, or set of relations, occurs in the plural, interrupted, yet interconnected topos of the Americas. Through an analysis of the …