Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 31411 - 31440 of 45265

Full-Text Articles in Entire DC Network

Preservation Of Sperm Harvested From The Rat, Caprine, Equine, And Bovine Epididymis, Aida Nioma James Jan 2004

Preservation Of Sperm Harvested From The Rat, Caprine, Equine, And Bovine Epididymis, Aida Nioma James

LSU Doctoral Dissertations

The interest in preserving endangered species has increased the amount of attention lent to the recovery of functional sperm from the epididymides of deceased males (Foote, 2000). Postmortem specimens have a finite time period before decomposition affects functionality. Determination of this “window of opportunity” to harvest and preserve epididymal sperm would be beneficial for further research in sperm preservation and assisted reproductive technologies. The objective of these studies was to determine 1) the “window of opportunity” to collect viable rat, caprine, equine and bovine epididymal sperm, 2) if epididymal sperm collected could be cryopreserved, 3) to test two common cryoprotectants …

Go to article

The Effects Of Memory Knowledge On Attributions Of Forgetfulness In Younger And Older Adults, Susan K. J. Brigman Jan 2004

The Effects Of Memory Knowledge On Attributions Of Forgetfulness In Younger And Older Adults, Susan K. J. Brigman

LSU Doctoral Dissertations

This study examined the relationship between memory knowledge and peoples' perceptions of forgetful younger and older adults in two ways. First, using an experimental approach, younger and older research participants were assigned to one of three information conditions: control (received no information about memory and aging), grandparent (received information about grandparent-grandchild relationships), and memory aging (received information about normative age-related changes in memory functioning in later adulthood). One week later, participants read six vignettes describing fictitious persons experiencing everyday instances of forgetting who were either younger (23-35 years of age) or older (63-75 years of age). Following Erber, Szuchman, and …

Go to article

Evaluation Of Injury And Management Strategies For Stink Bugs (Heteroptera: Pentatomidae) On Cotton, Gossypium Hirsutum L., Melissa Marie Willrich Jan 2004

Evaluation Of Injury And Management Strategies For Stink Bugs (Heteroptera: Pentatomidae) On Cotton, Gossypium Hirsutum L., Melissa Marie Willrich

LSU Doctoral Dissertations

The effects of brown stink bug, Euschistus servus (Say), and southern green stink bug, Nezara viridula (L.), feeding on pre-flowering, flowering, and senescing cotton, Gossypium hirsutum L., plants were evaluated in field studies. Vegetative stage seedlings and flower buds (squares) were not significantly injured by adults or nymphs of either species in no-choice studies. Brown stink bug adults induced boll abscission, and reduced seedcotton yield and seed germination in bolls accumulating „T 350, „T 550, and 101 to „T 600 heat units beyond anthesis, respectively. In free-choice tests, boll preference was evaluated during each of the initial five weeks of …

Go to article

A Study Of The Quintet For Piano And Strings By Richard Danielpour, Myung Jin Kuh Jan 2004

A Study Of The Quintet For Piano And Strings By Richard Danielpour, Myung Jin Kuh

LSU Doctoral Dissertations

Richard Danielpour is recognized as one of the most successful and acclaimed composers today. His music is often described as neo-romantic: full of grand gestures, highly accessible, brilliantly orchestrated, and rhythmically powerful and exciting. His music is based on the traditions of European classical music; however, it also combines the American vernacular of the 20th century, including jazz, rock, and pop music. His special interests in metaphysics and non-Western culture, especially Zen Buddhism, are also reflected in his compositions. This study examines Danielpour’s Quintet for Piano and Strings, written in 1988. The work consists of three movements with the descriptive …

Go to article

Flesh And Spirit Onstage: Chronotopes Of Performance In Medieval English Theatre, Gregory Lee Cavenaugh Jan 2004

Flesh And Spirit Onstage: Chronotopes Of Performance In Medieval English Theatre, Gregory Lee Cavenaugh

LSU Doctoral Dissertations

This study uses Mikhail Bakhtin's chronotope, which is the informing principle of one's experience of space and time, to explore different relations among space, time, actors, and audience in medieval theatre. Relations between the material and spiritual worlds as understood in the Middle Ages are considered in the context of relations between performers and audience members with two goals. First, I explore how the ontological status of the metaworld created through performance changed in the context of specific chronotopes. Second, I explore how diverse religious discourses affected medieval modes of representation. This study posits three chronotopes of performance informing medieval …

Go to article

The Contributions Of Floyd Leslie Sandle To Black Educational Theatre In Louisiana, Ava Marie Brewster-Turner Jan 2004

The Contributions Of Floyd Leslie Sandle To Black Educational Theatre In Louisiana, Ava Marie Brewster-Turner

LSU Doctoral Dissertations

Floyd Leslie Sandle appeared on the theatrical scene in 1938 on the campus of Grambling State University. From his humble beginnings in the segregated town of Magnolia, Mississippi, to Dillard University where his passion for theatre was nurtured by Dr. Sheppard Randolph Edmonds, Sandle made significant strides in the dvelopment of Black Educational Theatre in Louisiana. Through his unique approach of presenting plays to the residents of the rural community of Grambling, Louisiana, Sandle was able to establish a state certified Speech and Drama Department at Grambling State University. He trained students in educational theatre though his lectures, laboratory experiences, …

Go to article

A Theory Of Effective Computer-Based Instruction For Adults, Janis Sue Lowe Jan 2004

A Theory Of Effective Computer-Based Instruction For Adults, Janis Sue Lowe

LSU Doctoral Dissertations

Computer-based instruction (CBI) was considered the technological phenomenon to revolutionize education and training. Today, the Internet and computer technology are reported to have significantly altered the education landscape (Johnson & Aragon, 2002). The rapid advances in technology, the need for lifelong learning, and the growth of non-traditional students have encouraged the use of the computer as a method of instructional delivery. Evaluating the effectiveness of CBI as a whole technology is very difficult. The inability to measure effectiveness is attributable in part to the fact that CBI is not just one component, but a complex range of services and activities …

Go to article

Application Of Disturbance Theory To Assess Impacts Associated With A Three-Dimensional Seismic Survey In A Freshwater Marsh In Southwest Louisiana, Aaron Stuard Bass Jan 2004

Application Of Disturbance Theory To Assess Impacts Associated With A Three-Dimensional Seismic Survey In A Freshwater Marsh In Southwest Louisiana, Aaron Stuard Bass

LSU Doctoral Dissertations

This study examined various practical and theoretical aspects of disturbance in a coastal wetland marsh in southern Louisiana. A literature review approached disturbance ecology from both practical and theoretical perspectives and assessed its applicability to developing broad predictive models. However, specific knowledge of environmental variables, competitive relationships, and the interactive effects of multiple disturbances are required for meaningful usage of these models. The Lacassine National Wildlife Refuge (LNWR) proved to be an ideal laboratory to test various aspects of ecological disturbance theory. I found that the primary disturbances affecting the LNWR have been hurricanes, droughts, water-level manipulations, prescribed burning, oil …

Go to article

Numerical Modeling Of Strain Localization In Granular Materials Using Cosserat Theory Enhanced With Microfabric Properties, Mustafa Alsaleh Jan 2004

Numerical Modeling Of Strain Localization In Granular Materials Using Cosserat Theory Enhanced With Microfabric Properties, Mustafa Alsaleh

LSU Doctoral Dissertations

Finite element solution in the updated Lagrangian frame is used to investigate the strain localization phenomenon "shear bands" in granular materials. The micro-polar theory was used as the mathematical foundation for the continuum formulations. A laboratory testing results are used for verification and comparison with the numerical simulation. Silica sand and glass beads with different shape indices, size and surface roughness were tested under biaxial and triaxial loading conditions to investigate the physics of the problem. The shape non-uniformity and the irregular surface roughness of the grains were studied carefully to evaluate their effect on shear band characteristics. To this …

Go to article

The Control, Survival, And Growth Of Listeria Monocytogenes On Food Products, Richelle Lynn Beverly Jan 2004

The Control, Survival, And Growth Of Listeria Monocytogenes On Food Products, Richelle Lynn Beverly

LSU Doctoral Dissertations

Listeria monocytogenes, a ubiquitous foodborne pathogen, was recognized over 70 years ago. It is the source of the human disease listeriosis. The majority of Listeria monocytogenes that have been isolated from food product or human cases are of the serotypes ½ a, ½ b and 4b. Due to the recent outbreaks, recalls and deaths associated with Listeria monocytogenes in ready-to-eat meat products, the United States Department of Agriculture (USDA), Food Safety and Inspection Service (FSIS) on October 2, 2003 issued a directive for the control of Listeria monocytogenes on ready-to-eat products. The ready-to-eat food industry must impose a post-lethality treatment …

Go to article

Effects Of Practice Strategies, Metronome Use, Meter, Hand, And Musical Function On Dual-Staved Piano Performance Accuracy And Practice Time Usage Of Undergraduate, Melody A. Hanberry Jan 2004

Effects Of Practice Strategies, Metronome Use, Meter, Hand, And Musical Function On Dual-Staved Piano Performance Accuracy And Practice Time Usage Of Undergraduate, Melody A. Hanberry

LSU Doctoral Dissertations

The purposes of this study were: 1) To assess the effects of practice strategies, metronome, meter, hand, and musical function on piano performance accuracy of undergraduate music majors enrolled in piano class (N=39), and 2) To assess the effects of practice strategies on practice time relative to two unfamiliar pieces of keyboard music. Throughout an eight-week training session, treatment subjects were provided strategies for practicing unfamiliar pieces of keyboard music and were allowed time in class to apply the strategies while practicing. Strategies included score analysis, isolating hand position shifts, practicing unfamiliar chords, practicing measures with accidentals, and using the …

Go to article

The Influence Of Selected Perceptual And Demographic Factors On The Involvement Of Youth In Violent Behaviors, Nathaniel Mcclinton Jan 2004

The Influence Of Selected Perceptual And Demographic Factors On The Involvement Of Youth In Violent Behaviors, Nathaniel Mcclinton

LSU Doctoral Dissertations

The purpose of this study was to determine the influence of selected perceptual and demographic factors on the self-reported aggressive/violent behaviors of young adults while they were enrolled in school. Specific objectives formulated to guide the research were to: 1)determine the level of involvement in violence and violent behaviors; 2) determine the attitudes and beliefs of young adults; 3)determine the environmental conditions experienced by young adults when last in school; 4)determine if a relationship exists between the level of violence and violent behavior and selected perceptual and environmental factors among young adults, and finally 5)determine if a model exists to …

Go to article

The Style Of Meditation: A Conductor's Analysis Of Selected Motets By Rihards Dubra, Kevin Doyle Smith Jan 2004

The Style Of Meditation: A Conductor's Analysis Of Selected Motets By Rihards Dubra, Kevin Doyle Smith

LSU Doctoral Dissertations

 Born in Riga, the capital of Latvia, on February 28, 1964, Rihards Dubra is one of the emerging composers of the great Baltic choral tradition. The scope of this research is to provide an introduction to the Latvian composer's music and a conductor's analysis of selected Latin motets. Works to be examined include: Salve Regina (1992) SSAATTBB Gloria patri (1992) SSAATTBB Oculus non vidit (1993) SSATTB Ave Maria (1994) SSAATTB Veni sancte Spiritus (1994) SATB Rorate caeli (1996) SSAATB (with ST soli) Veni Creator Spiritus (1998) SATB Magnificat (2000) SSATB The research is divided into three chapters. The first …

Go to article

On Qualitative Properties And Convergence Of Time-Discretization Methods For Semigroups, Mihaly Kovacs Jan 2004

On Qualitative Properties And Convergence Of Time-Discretization Methods For Semigroups, Mihaly Kovacs

LSU Doctoral Dissertations

In this dissertation we use functional calculus methods to investigate convergence and qualitative properties of time-discretization methods for strongly continuous semigroups. Stability, convergence, and preservation of contractivity (or norm-bound) of the semigroup under time-discretization is investigated in a Banach space setting. Preservation of positivity, concavity and other qualitative shape properties which can be described via positivity are treated in a Banach lattice framework. The use of the Hille-Phillips (H-P) functional calculus instead of the Dunford-Taylor functional calculus allows us to extend fundamental qualitative results concerning time-discretization methods and simplify their proofs, including results on multi-step schemes and variable step-sizes. We …

Go to article

The Effect Of Observational Method And Task Complexity On Neuropsychological Test Performance, Linda S. Lindman Jan 2004

The Effect Of Observational Method And Task Complexity On Neuropsychological Test Performance, Linda S. Lindman

LSU Doctoral Dissertations

Neuropsychologists are often called upon to conduct psychological examination in the presence of an observer in litigation cases despite research clearly demonstrating altered performance on neuropsychological tests under such conditions. Past research into the social facilitation effect suggests attentional conflict (Baron, 1986; Manstead & Semin, 1980) and increased anxiety (Guerin & Innes, 1982; Guerin, 1983) when observers are present and cannot be monitored. However, this research has found conflicting results depending upon the complexity of tasks and differences in observation condition. Meta analyses point to task complexity (Bond & Titus, 1983) and evaluation apprehension (Guerin, 1986) as important moderators of …

Go to article

A Practical Guide To Twentieth-Century Violin Etudes With Performance And Theoretical Analysis, Aaron Michael Farrell Jan 2004

A Practical Guide To Twentieth-Century Violin Etudes With Performance And Theoretical Analysis, Aaron Michael Farrell

LSU Doctoral Dissertations

This document is a partial catalog of what is readily available to violinists for studies relating to twentieth-century repertoire. More studies in this area exist throughout the world, so those presented here are intended merely as a starting point. The document also contains factual information about the studies, as well as performance and theoretical analysis and biographical information about the composers. This information is designed to serve a variety of purposes. The factual and biographical information may be used by the violinist to choose appropriate etudes for himself/herself or a student. Later, the in-depth analysis will assist players throughout the …

Go to article

Examining The Relationships Between Motivational Traits And Counterproductive Work Behaviors, Kajal Rushikesh Mehta Jan 2004

Examining The Relationships Between Motivational Traits And Counterproductive Work Behaviors, Kajal Rushikesh Mehta

LSU Master's Theses

This study examined the relationships between motivational traits and counterproductive work behaviors. Little evidence exists supporting a link between individual differences and counterproductive work behaviors in previous literature. This study tested for a link between individual differences in motivation and workplace deviance by using broad operationalizations of both constructs. In addition, the investigation controlled for the effects of situational factors on counterproductive work behaviors providing a stronger test of the role of dispositional motivation. In general, this study set out to show that both approach and avoidance motivation tendencies are related to counterproductive work behaviors, as well as organizational citizenship …

Go to article

Field Evaluation Of Mosquito Control And Repellent Devices In Southern Louisiana, Brett Warren Collier Jan 2004

Field Evaluation Of Mosquito Control And Repellent Devices In Southern Louisiana, Brett Warren Collier

LSU Master's Theses

The effect of 2 mosquito traps and 2 repellent systems upon the catch of an American Biophysics Corporation (ABC) light trap were evaluated over a 14-month period at 3 locations in Louisiana. Devices evaluated included: 1) ABC Mosquito Magnet® with dry ice and octenol, 2) the BioSensory 500 cc Dragonfly® Biting Insect Trap with CO2, octenol, and Mosquito Cognito® which uses Conceal™ inhibitor, 3) the SC Johnson OFF!® Mosquito Lantern, and 4) the ThermaCell® cordless mosquito repellent system for residential use. The number of mosquitoes caught in the ABC light traps at the SC Johnson OFF!® Mosquito Lantern …

Go to article

Bacterial Plume Dynamics In The Marshland Upwelling System Employed In The Near Freshwater Conditions, Benjamin Kojo Addo Jan 2004

Bacterial Plume Dynamics In The Marshland Upwelling System Employed In The Near Freshwater Conditions, Benjamin Kojo Addo

LSU Master's Theses

The marshland upwelling system (MUS) was installed in a floatation marsh along the banks of the Bayou Segnette Waterway, Louisiana. This site was characterized by native groundwater of low salinity regime. Previous studies focused on the removal of fecal pathogens from settled/raw and secondarily treated wastewater under high saline groundwater conditions. The objectives of this research were to: 1) quantify the impact of natural die-off on bacterial removal within the MUS, 2) determine bacterial retardation rates in laboratory-repacked sandy loam soil columns, and 3) evaluate the effectiveness of the MUS in removing fecal pathogens from settled, raw wastewater. Varying salinities …

Go to article

Evolution Of Base Substitution Gradients In Primate Mitochondrial Genomes, Sameer Raina Jan 2004

Evolution Of Base Substitution Gradients In Primate Mitochondrial Genomes, Sameer Raina

LSU Master's Theses

The availability of large amounts of genetic data from the mitochondrial DNA of species has created an unprecedented opportunity for the study of evolutionary processes. Being our closest relatives on the evolutionary tree the primates are a prime candidate for the study of evolutionary processes. The availability of large amounts of genetic data from the primates allows us to study and compare results from different phylogenetic reconstruction methods and to study and trace rudimentary evolutionary processes within the primate lineage. The evolutionary process studied here is the response of the nucleotide frequency ratios to single-strandedness of sites during mitochondrial DNA …

Go to article

Did White House Reporters Defer To The President After September 11?, Jodi Kathleen Bannerman Jan 2004

Did White House Reporters Defer To The President After September 11?, Jodi Kathleen Bannerman

LSU Master's Theses

This study's primary focus is to determine if the White House press corps acted more deferential to President Bush and his agenda after September 11, 2001, and if so, to see how long the period of decreased adversarial relations lasted. This purpose is accomplished through a content analysis of 37 White House press briefings, conducted by then White House Press Secretary Ari Fleischer, examining press-briefing questions three months before, on, directly following, and three months after September 11 according to four dimensions of adversarial relations: initiative, directness, assertiveness, and hostility. Ten question design features comprise the criteria to measure each …

Go to article

Case Study Analysis Of Strategic Alliances For The U.S. Beef Industry, Angel Bu Zapatta Jan 2004

Case Study Analysis Of Strategic Alliances For The U.S. Beef Industry, Angel Bu Zapatta

LSU Master's Theses

This paper provides case studies on the structure of six strategic alliances in the beef industry. Strategic alliances are identified whose structure could conceivably be used in Louisiana. Strategic alliances are compared and contrasted on the basis of development and performance. The main objective of this study was to determine the organization and operation of six strategic alliances in the beef industry. The study examines strategic alliances in the U.S. beef industry using multiple exploratory case studies. The exploratory type, allows the researcher to better understand critical points in the beef industry and how the use of strategic alliances can …

Go to article

Removal Of Toxic Organics In Wetlands: A Mechanistic Model, Luz Edith Florez Jan 2004

Removal Of Toxic Organics In Wetlands: A Mechanistic Model, Luz Edith Florez

LSU Master's Theses

The ability of removing toxic organic compounds in natural systems is important due to the capacity of these toxicants to increase risk of diseases when they are ingested by humans. This study developed a mechanistic model to estimate the removal efficiency of toxic organics in wetlands using the tanks-in-series model. Sensitivity analyses were performed for different values of the hydraulic loading rate and two kinds of wetlands: bottomland hardwood forest and freshwater marsh. It was observed the effect in the removal efficiency by the number of cell in series was principally perceived for values of N between 1 and 4; …

Go to article

Nadzab (1943): The First Successful Airborne Operation, James Philip Lowe Jan 2004

Nadzab (1943): The First Successful Airborne Operation, James Philip Lowe

LSU Master's Theses

The U.S. Army in 1940 was in the early stages of developing an airborne capability to exploit the vertical envelopment concept. That concept became reality in 1942 with the first airborne operation in North Africa. Although the first parachute drop contributed virtually nothing to the overall success of the mission, it was the beginning of an important capability. In 1943, the War Department authorized five airborne divisions despite a lack of experience and doctrine to direct the new organizational structure. The airborne initiative expanded much more quickly than did the doctrine, training, or employment principles. The first attempts of conducting …

Go to article

North Korean Invasion And Chinese Intervention In Korea: Failures Of Intelligence, Robert A.Ii Culp Jan 2004

North Korean Invasion And Chinese Intervention In Korea: Failures Of Intelligence, Robert A.Ii Culp

LSU Master's Theses

The America intelligence community in 1950, unprepared to perform its missions, failed to provide adequate indications and warning to U.S. national leaders and to the Commander, Far East Command (FEC), about the North Korean invasion of South Korea and Red Chinese intervention in the Korean War. Post-World War II policies that reduced the size of the military, cut systems and training, and reorganized intelligence services are responsible for that failure. Training deficiencies meant that intelligence soldiers deployed to Korea without required skills. The military trained analysts to assess enemy capabilities rather than intentions, contributing to poor predictive analysis. Shortages of …

Go to article

"Honduran Memories": Identity, Race, Place And Memory In New Orleans, Louisiana, Samantha Euraque Jan 2004

"Honduran Memories": Identity, Race, Place And Memory In New Orleans, Louisiana, Samantha Euraque

LSU Master's Theses

During the decade preceding the height of the civil rights movement, a small population of Hondurans established residence in the New Orleans area. This Honduran migration was largely due to the trade relationship that existed between Honduras and New Orleans. Honduras was also experiencing political unrest and economic instability due to military coups, fruit company strikes and floods during the late 1950s. In response, the advent of the 1960s brought with it the first wave of Hondurans. According to the 2000 Census there were 64,340 people of Hispanic origin in the four parishes included in the New Orleans metropolitan area, …

Go to article

Optimal Rate Of Freezing Biological Systems, Sreedhar Thirumala Jan 2004

Optimal Rate Of Freezing Biological Systems, Sreedhar Thirumala

LSU Master's Theses

This thesis addresses optimization techniques for cryopreservation of biological systems. A part of the thesis (Chapter 2) reports a simplified procedure to predict the optimal rate of freezing biological systems once the cell level parameters are known a priori. The key cell level parameters investigated were, reference permeability of the membrane to water (Lpg), apparent activation energy (ELp), inactive cell volume (Vb), diameter (D), and the ratio of the available surface area for water transport to the initial volume of intracellular water (SA/WV). The simplified procedure was developed by performing a thorough analysis of the water transport model over a …

Go to article

Short-Term Evolution Of A Marsh Island System And The Importance Of Cold Front Forcing, Terrebonne Bay, Louisiana, Dana Ann Watzke Jan 2004

Short-Term Evolution Of A Marsh Island System And The Importance Of Cold Front Forcing, Terrebonne Bay, Louisiana, Dana Ann Watzke

LSU Master's Theses

Short-term, wave induced erosion along bay beaches in the northern Gulf of Mexico has been linked to the postfrontal phase of cold front passages. Not until recently has consideration been given to the importance of wave erosion on marshes fringing large bays during the entire cold front event. Two WAVCIS (Wave-Current-Surge-Information System) stations were established on the north and south flank of a small marsh island in Terrebonne Bay, Louisiana, to measure and elucidate the hydrodynamic response to these events. Data from WAVCIS stations, which includes wind speed and direction, air temperature, significant wave height and water level, were collected …

Go to article

A Spatial Analysis Of The Smallpox Epidemic In Sheffield, United Kingdom, 1887-1888, Ann-Marie Cain Jan 2004

A Spatial Analysis Of The Smallpox Epidemic In Sheffield, United Kingdom, 1887-1888, Ann-Marie Cain

LSU Master's Theses

One of today's most fecund fields of research in medical geography involves using historical datasets from past epidemics and contemporary cadastre maps to plot the course of the contagion. The purpose is to study the spatial patterns of diseases that are rare or extinct today but still have large research value. The best example of this problem is smallpox. This project involves taking one of the most complete records of a smallpox epidemic, plotting the cases in a geographic information system (GIS), and exploring the spatial patterns using statistical software. As one of the most contagious and damaging diseases to …

Go to article

The Effects Of Reinforcement Magnitude On Functional Analysis Outcomes, Valerie Marie Volkert Jan 2004

The Effects Of Reinforcement Magnitude On Functional Analysis Outcomes, Valerie Marie Volkert

LSU Master's Theses

The functional analysis methodology developed by Iwata, Dorsey, Slifer, Bauman, and Richman (1982/1994) has been successfully used to identify the variables that maintain the problem behavior of individuals with developmental disabilities. However, in some cases, the results of functional analysis may be inconclusive. Altering parameters of reinforcement, such as the schedule, the quality, or magnitude of the reinforcer, may increase the likelihood of obtaining clear functional analysis results. Few studies have evaluated the effects of reinforcement magnitude on problem behavior even though basic findings indicate that this parameter may alter functional analysis outcomes. In fact, reinforcement magnitude has varied widely …

Go to article

First Prev Next Last