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2006

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Positional Effects Of Trna Genes: Transfer Rna Genes As Chromatin Boundaries In Saccharomyces Cerevisiae, Tiffany Anne Simms Jan 2006

Positional Effects Of Trna Genes: Transfer Rna Genes As Chromatin Boundaries In Saccharomyces Cerevisiae, Tiffany Anne Simms

LSU Master's Theses

Recently, much evidence has been brought forth into the scientific community supporting the idea that RNA Polymerase III transcribed regions of DNA may serve as chromosomal landmarks for silencing. Transfer RNA genes are known to involve themselves in several extra-transcriptional functions within the chromosome, including the pausing of replication forks, Ty element integration, tRNA position effects (repression of neighboring genes), acting as a barrier to the spread of heterochromatin, and over-riding nuclosome positioning sequences. Our results suggest that many tRNA genes may serve these functions as well as exhibiting behavior similar to metazoan insulators. Also, ETC (Extra TFIIIC) sites within …

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Media Use, Hiv/Aids Knowledge, And Sexual Beliefs: An Exploration Of Differences Between Races, Tarana Hammond Jan 2006

Media Use, Hiv/Aids Knowledge, And Sexual Beliefs: An Exploration Of Differences Between Races, Tarana Hammond

LSU Master's Theses

As the numbers rise among African Americans who are contracting HIV/AIDS, it becomes evident that research is needed to examine where African Americans obtain HIV/AIDS information. This study identified where African Americans obtain HIV/AIDS information and examined how that information affects African Americans’ sexual beliefs about HIV/AIDS. The theoretical foundation for this study was the Health Belief Model (HBM). This study used a survey method. The data analysis demonstrated that race does influence the type of media an individual uses. Race does not impact an individual’s access to health information. Knowledge about HIV/AIDS impacts an individual’s sexual beliefs about HIV/AIDS. …

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Numerical Solution Of Flow Resistance In Outflow Pathway And Intravitreal Drug Delivery In Vitrectomised Eyes, Jyoti Gururaj Kathawate Jan 2006

Numerical Solution Of Flow Resistance In Outflow Pathway And Intravitreal Drug Delivery In Vitrectomised Eyes, Jyoti Gururaj Kathawate

LSU Master's Theses

In this study, numerical computations of the ocular fluid dynamics in a human eye are presented with a perspective of understanding the mechanisms of increased flow resistance. In the present study, the TM is represented as a multilayered-graded porous structure with specific pore size and void fraction. The flow patterns and pressure distribution in anterior chamber are analyzed to delineate key flow mechanism; the shear stresses on the lens, iris and IW of SC are also examined to locate the maximum values. Inside the human eye, the largest pressure drop occurs across JCT and IW of SC. The highest pressure …

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Tech Culture -- A Real World Practice Of Effectuation Theories, Yi J. Cheng Jan 2006

Tech Culture -- A Real World Practice Of Effectuation Theories, Yi J. Cheng

LSU Master's Theses

Tech Culture is a local startup company that has a very creative idea in the network security management area. The two founders have a very strong startup for their business but encounter some problems during the expansion of their business. This thesis is to analyze their business model using effectuation theories to make sure the business model fits the current economic development. Then, start using various business theories to correctly define and analyze their problems. At the end, some theory-driven suggestions are given to Tech Culture for its future development.

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The Emerging Culture Of A Community College, Misty Kyle O'Connell Jan 2006

The Emerging Culture Of A Community College, Misty Kyle O'Connell

LSU Master's Theses

This study explores the emerging organizational culture of Baton Rouge Community College (BRCC). Specifically, the study looks at how faculty and key administrators describe the institution’s culture. Qualitative interviews with seven administrators and ten faculty members reveal the two groups had consistent viewpoints on many themes. Findings indicate BRCC exhibits the characteristics of an adhocracy culture. BRCC’s administration and faculty also describe the college’s culture as strong and externally oriented.

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Validity Of The Reflux Symptoms Index For Post-Pubescent Female Vocalists, Natalie Herpin Overall Jan 2006

Validity Of The Reflux Symptoms Index For Post-Pubescent Female Vocalists, Natalie Herpin Overall

LSU Master's Theses

The Reflux Symptoms Index (RSI), a nine-item self-rated questionnaire, has been suggested as a way of monitoring severity of laryngopharyngeal reflux (LPR) symptoms during treatment. However, limited research has been conducted to assess the validity of the RSI as a way of identifying severity of laryngopharyngeal reflux (LPR) symptoms as differentiated from gastroesophageal reflux (GER) symptoms. Twenty-five post-pubescent female vocalists participated by completing a one-hour voice evaluation, including a Voice Handicap Index (VHI), an RSI, a Reflux Finding Score (RFS) completed with videostroboscopy for visualization of the laryngeal cavity, and analysis of an acoustic sample with the Multi-Dimensional Voice Profile …

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Computer-Aided Diagnostic Systems For Digital Mammograms, Nicholas Jabari Lee Jan 2006

Computer-Aided Diagnostic Systems For Digital Mammograms, Nicholas Jabari Lee

LSU Master's Theses

A computer-aided diagnostic (CAD) system that uses a unique shape-based classification scheme, the Ellipse-Closed Curve Fitting (ECCF) algorithm, is developed for digital mammogram image analysis. The system is developed to work as a post-processing extension to a previously developed CAD system that locates and segments mass lesions, or tumors, found in digital mammograms into separate images. The ECCF system is implemented in the MATLAB mathematical scripting language and is thus capable of running on multiple platforms. The ECCF algorithm detects edges in tumor images and casts them into closed curve functions. Parameters for an ellipse of best fit for a …

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The Relationship Between Parent-Adolescent Conflict And Academic Achievement, Marie S. Nebel-Schwalm Jan 2006

The Relationship Between Parent-Adolescent Conflict And Academic Achievement, Marie S. Nebel-Schwalm

LSU Master's Theses

Previous research has shown family conflict to have a detrimental effect on the academic functioning of children and adolescents. Most research conceptualizes family conflict as marital distress or divorce. Additional factors that have been shown to effect academic functioning include cognitive ability (i.e., intelligence), academic skills (e.g., homework behaviors), and amount of resources (i.e., socioeconomic status, SES). The present study investigated whether parent-adolescent conflict is related to adolescent academic achievement after accounting for cognitive ability and homework behaviors. Participants include 74 middle school students attending public school in a low-SES urban environment. Prior to conducting analyses, parent and adolescent reports …

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Burn Scar Mapping In The Sabine National Wildlife Refuge Using Landsat Tm And Etm+ Imagery, Chris Pennington Jan 2006

Burn Scar Mapping In The Sabine National Wildlife Refuge Using Landsat Tm And Etm+ Imagery, Chris Pennington

LSU Master's Theses

Marsh fires burn on a regular basis on the Southwestern Louisiana Coast from both natural and anthropogenic ignitions. Remote sensing based studies of these fires are scarce. Several burn scar mapping techniques have been developed and implemented for study of forest fires in the American West but have not been applied to marsh fires. Erdas Imagine and ArcGIS Software was used to process Landsat imagery of the Sabine National Wildlife Refuge in accordance with the most commonly used burn scar mapping spectral indices and tested for accuracy against manually digitized burn scar maps. Indices tested included the Normalize Burn Ratio …

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Students' Perceptions Of Leadership And The Ways In Which Leadershape Influences The Development Of Student Leaders, David Dial Jan 2006

Students' Perceptions Of Leadership And The Ways In Which Leadershape Influences The Development Of Student Leaders, David Dial

LSU Master's Theses

Student leadership development programs are an emerging topic of conversation within the field of student affairs. This paper uses the personal narratives of five recent graduates of the LeaderShape program to consider student perceptions of the effects of this program. A literature review discusses recent publications in the field of student leadership development. The interview data collected in this study confirm the findings of this recent research, including generally positive leadership experiences, improved racial relations, and the importance of small group interactions. Additionally, this thesis includes a cross-case analysis and discussion section that present several themes that emerged from participants' …

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A Multivariate Analysis Of Economic Reform In Latin America, 1980-1995, Ashley Dyan Ross Jan 2006

A Multivariate Analysis Of Economic Reform In Latin America, 1980-1995, Ashley Dyan Ross

LSU Master's Theses

The current literature on economic reform is fragmented and lacks a cohesive theoretical framework to fully explain the politics of neoliberal reform adoption. The multiple perspectives presented in the literature, including institutional, pluralist, macroeconomic, international pressures, and policy networks, create an incoherent explanation of economic liberalization. In an effort to more completely account for the political dynamics of the economic reform process, my analysis incorporates the primary variables supported by the literature on neoliberal reform within an informal institutions framework. My primary variable of interest is policy networks, and I support this with the theory of informal institutions while considering …

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Mass Media Usage During A Natural Disaster: Lsu College Students And Hurricane Katrina, Pavica Juric Jan 2006

Mass Media Usage During A Natural Disaster: Lsu College Students And Hurricane Katrina, Pavica Juric

LSU Master's Theses

A survey with 293 American and 68 international LSU students and two focus groups with American students and one with international students were conducted between November 2005 and February 2006 to determine the difference in media use between American and international LSU students in the aftermath of Hurricane Katrina: What were students’ main sources of information after the storm? What were their sources when electricity was out? Which source of information helped students feel less lonely? Which source of information helped students fell less stressful? Finally, which medium did the students believe, when compared to others, did the best job …

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Performance Of Torus-Type Brushless Dc Motor With Winding Connected In Two And Three-Phase System, Dinakar Choppa Jan 2006

Performance Of Torus-Type Brushless Dc Motor With Winding Connected In Two And Three-Phase System, Dinakar Choppa

LSU Master's Theses

A torus-type permanent magnet brushless DC motor is the object of this thesis. The motor can operate with the winding connected either in two - phase or three - phase system. A comparative study of performance of the motor operating in these two systems is the objective of the thesis. To analyze the motor performance, the dynamic models of the motors operating with two - phase and three - phase motors have been proposed. The simulation of motor operation was carried out using the MATLAB/SIMULINK software package. A study of motors operation in steady state conditions has been done by …

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Master Of Disaster: An Interview With Multnomah County's Director Of Emergency Management, Merilee Karr Jan 2006

Master Of Disaster: An Interview With Multnomah County's Director Of Emergency Management, Merilee Karr

Institute of Metropolitan Studies Publications

An interview with Tom Simpson, Director of Emergency Management for Multnomah County, Oregon. Discusses crisis communications, issues the county faces regarding terrorism and natural disasters, as well as some obstacles and possible solutions.

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Effects Of Insectivorous Birds On Tree Growth In The Maurepas Swamp, David M. Fox Jan 2006

Effects Of Insectivorous Birds On Tree Growth In The Maurepas Swamp, David M. Fox

LSU Master's Theses

Coastal forests in Louisiana are in decline due to natural and human caused changes in the hydrology of the region. Baldcypress and water tupelo trees have been further stressed by caterpillar herbivory in recent decades. Regeneration of water tupelo is crucial for cavity creation for nesting habitat for secondary cavity nesting bird populations. Insectivorous birds have been shown to decrease insect-caused leaf damage on trees in other ecosystems. Two experiments examining effects of insectivorous birds on tree growth were conducted in degraded areas of the Maurepas Swamp in southeastern Louisiana. In the first experiment, nest boxes were added to study …

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A Comparison Of Dominance And Affiliation Ratings Based On Emotional State, Sex, And Status, Jennifer Bernardi Jan 2006

A Comparison Of Dominance And Affiliation Ratings Based On Emotional State, Sex, And Status, Jennifer Bernardi

LSU Master's Theses

Perceptions of interpersonal dominance and affiliation have been extensively examined throughout past research. In the current study, the purpose was to fill in the some of the gaps of existing research well, specifically the gap created by current confusion in the literature regarding the effects of sex, status, and emotional display on ratings of dominance and affiliation. Also, interactions between the primary variables of interest (sex, status, and emotional display) were observed. Results revealed significant relationships within several of the dimensions addressed, specifically between emotional display and ratings of dominance and affiliation such that individuals displaying anger were viewed as …

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A New Method To Determine Radiative Properties Of Rough Solid Surfaces, Raghu Nandan Mutukulla Jan 2006

A New Method To Determine Radiative Properties Of Rough Solid Surfaces, Raghu Nandan Mutukulla

LSU Master's Theses

The radiative properties of the rough surfaces are important both from fundamental and practical standpoint. Thus, there is a need to determine the effect of roughness on radiative properties of materials accurately, as these properties effect the performance of electronic devices, communication devices, optical sensors, and furnaces, amongst others. The effects of roughness are assessed by measuring the reflection coefficients from the carbon rod surfaces and steel 1086 samples over the range of angles 25 to 75 in the visible range and near infrared region. Different levels of roughness are induced on the surfaces by utilizing different grid size sand-paper …

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Fundamentals For Student Success In The Middle Grades, Mike Muir, Vincent A. Anfara Jr., P. Gayle Andrews, Micki M. Caskey, Steven B. Mertens, David Hough Jan 2006

Fundamentals For Student Success In The Middle Grades, Mike Muir, Vincent A. Anfara Jr., P. Gayle Andrews, Micki M. Caskey, Steven B. Mertens, David Hough

Curriculum and Instruction Faculty Publications and Presentations

Determining how to provide the best education possible for young adolescents begins with the answers to three essential questions: Who are young adolescents? What do we know about them, their abilities, interests and strengths? Based on what we know about young adolescents, what should schools do to provide a quality education for each and every student? And finally, is there evidence that these recommended practices improve student achievement? How do we know programs and practices designed specifically with young adolescents in mind make a difference? To answer these questions, we will first outline some of the developmental characteristics of young …

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Effects Of Terraces On Submerged Aquatic Vegetation In Shallow Marsh Ponds In Coastal Southwest Louisiana, Christopher Dean Cannaday Jan 2006

Effects Of Terraces On Submerged Aquatic Vegetation In Shallow Marsh Ponds In Coastal Southwest Louisiana, Christopher Dean Cannaday

LSU Master's Theses

The wetlands of coastal Louisiana are disappearing at a rate of 65 to 80 km2yr-1. Most of the loss is the conversion of emergent marsh to shallow marsh ponds. Terracing is one restoration technique that has been used frequently in recent years. Terraces are small intertidal ridges built in shallow marsh ponds to reduce wave action. It is assumed that this will slow erosion of adjacent emergent marsh and increase Submerged Aquatic Vegetation (SAV) production, a key habitat component for many marsh fauna. Yet both relevant previous studies failed to show that terraces increased SAV abundance. …

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Verification Of Direct Brachytherapy Dosimetry For A Single Seed Implant, Jabari Robinson Jan 2006

Verification Of Direct Brachytherapy Dosimetry For A Single Seed Implant, Jabari Robinson

LSU Master's Theses

A new technique using direct post-implant dosimetry, which does not depend explicitly on brachytherapy seed orientation or position, was explored for a prostate and a breast case. This technique, proposed by E Sajo and ML Williams (SW), uses trace amounts of positron emitters placed in the seed capsule and uses the positron emission tomography image in conjunction with a computed tomography image (PET-CT) to compute the therapeutic dose distribution in the patient. The SW technique could reduce errors in the post-implant dose computations associated with seed localization, seed shadowing and medium heterogeneity. Dose point kernels were obtained using Monte Carlo …

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Media Framing Of Prescription Drug Coverage Following A Recall, Rebecca Ann Hotard Jan 2006

Media Framing Of Prescription Drug Coverage Following A Recall, Rebecca Ann Hotard

LSU Master's Theses

Direct-to-consumer advertising of prescription drugs receives significant attention from academic researchers. Advertising, however, is not the only way prescription drugs are discussed in the public sphere. Many Americans learn about science through mass media. Additionally, researchers believe readers place more trust in editorial content than in advertisements. This study took a quantitative and qualitative approach to content analysis of prescription drug coverage to examine the effects of the highly publicized and controversial Vioxx recall on the news. Significant changes in framing, drugs mentioned, and prominence of story placement were shown. There were no changes in sources used in prescription drug …

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Mapping A Weak Hypercube On An Optical Slab Waveguide, Divya Rengan Jan 2006

Mapping A Weak Hypercube On An Optical Slab Waveguide, Divya Rengan

LSU Master's Theses

The communication fabric of a parallel processing system is represented as a directed graph. In a weak topology a processor uses at most one incoming edge or one outgoing edge for communication at any given point in time. Currently, the data rate that can be supported on electronic interconnects is reaching its limits. Optical interconnects have been identified as one of the most promising approaches to the growing demands for today's systems. The “medium bandwidth” of an optical waveguide is huge (order of petabits per second for a 1mm2 cross-section optical slab). The challenge lies in utilizing as much of …

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Target Audiences And Communication Channels Of Lighten Up Programs In The United States, Nancy Leah Borden Jan 2006

Target Audiences And Communication Channels Of Lighten Up Programs In The United States, Nancy Leah Borden

LSU Master's Theses

Several Lighten Up programs around the United States were qualitatively studied in efforts to determine their target audiences and the communication channels used to reach these audiences. To guide this study, principles from the social marketing framework and the diffusion of innovations theory were applied. Several Lighten Up program executive directors and other high-ranking individuals in charge of the programs were interviewed in-depth to answer questions pertaining to target audiences and communication channels. Inductive data analysis illustrated that programs did not segment their target audiences, that more programs depended on interpersonal and group communication than mass communication, and finally, that …

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An Architecture For Adaptive Real Time Communication With Embedded Devices, Amol S. Patwardhan Jan 2006

An Architecture For Adaptive Real Time Communication With Embedded Devices, Amol S. Patwardhan

LSU Master's Theses

The virtual testbed is designed to be a cost-effective rapid development environment as well as a teaching tool for embedded systems. Teaching and development of embedded systems otherwise requires dedicated real time operating systems and costly infrastructure for hardware simulation. Writing control software for embedded systems with such a setup takes prolonged development cycles. Moreover, actual hardware may get damaged while writing the control software. On the contrary, in a virtual testbed environment, a simulator running on the host machine is used instead of the actual hardware, which then interacts with an embedded processor through serial communication. This hardware-in-the-loop setup …

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An Analysis Of The Relationship Between City Typology, Interactivity And Advertising Message Strategies Of American Municipal Web Sites, Jeremy John Starr Jan 2006

An Analysis Of The Relationship Between City Typology, Interactivity And Advertising Message Strategies Of American Municipal Web Sites, Jeremy John Starr

LSU Master's Theses

This study became to first to scientifically explore the relationship between city typology and the use of advertising message strategy and interactivity within municipal web sites. The study used Taylor’s six-segment strategy wheel to analyze message strategies and previous scales of interactivity to analyze structural interactivity. Medium-size cities and cities within the South and West geographic regions more likely used sensory strategies within their web sites. Cities with racially diverse populations more likely used sensory strategies within their web sites as well. Large cities and central cities, both with large populations, used the most interactive strategies within their sites compared …

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A Phenomenological Aesthetic Of Cinematic 'Worlds', Christopher Yates Jan 2006

A Phenomenological Aesthetic Of Cinematic 'Worlds', Christopher Yates

Contemporary Aesthetics (Journal Archive)

Contemporary film aesthetics is beset by difficulties arising from the medium itself and the bewildering itinerary of film theory. Inspired by Martin Heidegger's hermeneutical vision in "On the Origin of the Work of Art" (1935), my essay seeks to overcome this paralysis by grounding the aesthetic value of cinematic art in its ability to "disclose the world" through a convergence of artist and viewer intentionalities. Stanley Cavell has gone far by exploring a corresponding "natural relation" between philosophy and cinema, but his work assumes an ontological discourse without an appropriate phenomenological method. I contend that Mikel Dufrenne's phenomenology of aesthetic …

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Montavilla: Mapping Community Assets, Adrien Allred, Ann Shaw Lee, Chris Stahlberg, Eugene Nucci Jan 2006

Montavilla: Mapping Community Assets, Adrien Allred, Ann Shaw Lee, Chris Stahlberg, Eugene Nucci

Asset Mapping: Community Geography Project

In May of 2006, Southeast Uplift of Portland Oregon approached Portland State University Mapping Community Assets Senior Capstone class with a proposed project. They asked the class to explore the community connections and assets in southeast Portland, and, specifically in the Montavilla Neighborhood. They were interested in the community organizations that might exist in the area and the way these organizations interacted with each other and the community as a whole. The class goal was to come up with a tool that could be used in the other southeast neighborhoods based on the research and experience in Montavilla.

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Are Respiratory Behaviors Affected In Individuals With Adductor Spasmodic Dysphonia?, Katie Biedess Jan 2006

Are Respiratory Behaviors Affected In Individuals With Adductor Spasmodic Dysphonia?, Katie Biedess

USF Tampa Graduate Theses and Dissertations

Adductor spasmodic dysphonia (ADSD) is a focal dystonia that is characterized by voice breaks due to involuntary contractions of the adductor muscles of the vocal folds. These spasms can interfere with the coordination and balance of the respiratory and phonatory systems interfering with normal voice production. Disruptions in normal respiratory behaviors are well documented in inviduals with laryngeal disorders, including ADSD. Previous research regarding respiratory processes in ADSD has focused on airflow and pressure; however, there are many other parameters that have not been considered and may shed new light on the respiratory behaviors of individuals with ADSD. Therefore, the …

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Arts In New Directions The Development And Application Of A Construct That Uses The Arts To Promote Transformation And Self-Actualization In Health Care And Education/Therapy, Alexxis Avalon Jan 2006

Arts In New Directions The Development And Application Of A Construct That Uses The Arts To Promote Transformation And Self-Actualization In Health Care And Education/Therapy, Alexxis Avalon

USF Tampa Graduate Theses and Dissertations

Artistic methods to evoke relaxation, spark creativity, and change self-perceptions are already being used by therapists, educators, and scientists. Interdisciplinary collaborations among researchers are developing to create new paradigms that incorporate the use of arts to empower individuals. By describing various connections between the arts and participants, researchers are looking at the expressive arts (including dance, music, drama, poetry, and visual arts) for transformation and self-actualization.The problem is that no construct is available to describe the transformation, "the conscious move from one deep structure of knowledge to another" (Wilber, 2004), that occurs when using the arts in health care and …

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Study Of Laplace And Related Probability Distributions And Their Applications, Gokarna Raj Aryal Jan 2006

Study Of Laplace And Related Probability Distributions And Their Applications, Gokarna Raj Aryal

USF Tampa Graduate Theses and Dissertations

The aim of the present study is to investigate a probability distribution that can be derived from the laplace probability distribution and can be used to model various real world problems. In the last few decades, there has been a growing interest in the construction of flexible parametric classes of probability distributions. Various forms of the skewed and kurtotic distributions have appeared in the literature for data analysis and modeling. In particular, various forms of the skew laplace distribution have been introduced and applied in several areas including medical science, environmental science, communications, economics, engineering and finance, among others. In …

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