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2005

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Ternary Logic To Binary Bit Conversion Using Multiple Input Floating Gate Mosfets In 0.5 Micron N-Well Cmos Technology, Sowmya Subramanian Jan 2005

Ternary Logic To Binary Bit Conversion Using Multiple Input Floating Gate Mosfets In 0.5 Micron N-Well Cmos Technology, Sowmya Subramanian

LSU Master's Theses

In the present work, a CMOS ternary to binary bit conversion technique has been proposed using multiple input floating gate MOSFETs. The proposed circuit has been implemented in 0.5 µm n-well CMOS technology. The ternary input signals of {-1, 0, +1} are represented as -3 V, 0 V and +3 V, respectively. The ternary input is given as a combination of any two of the three voltage levels and the 4-bit binary output is generated in which the left most bit is sign bit (SB) followed by most significant bit (MSB), second significant bit (SSB) and the least significant bit …

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The Role Of Perturbation On Biochemical Systems: Salt, Ph, And Microgravity Effects On Protein-Ligand And Small Molecule Interactions, Gregory S. Thompson Jan 2005

The Role Of Perturbation On Biochemical Systems: Salt, Ph, And Microgravity Effects On Protein-Ligand And Small Molecule Interactions, Gregory S. Thompson

LSU Master's Theses

DNA binding by the type I DNA polymerases from Escherichia coli (Klenow) and Thermus aquaticus (Klentaq) has been examined under varying ionic conditions. Klenow and Klentaq both show increased affinity for DNA substrate in the presence of KAcetate over KCl. Ionic linkage relationships were determined for Klenow and Klentaq in KAcetate. Klenow and Klentaq DNA binding show similar ion releases in KAcetate and KCl (~4-5 ions in Klenow, and ~3-4 ions in Klentaq). Interestingly, Klenow and Klentaq exhibit differential ion release in KGlutamate (~4-5 ions in Klentaq and ~2 ions in Klenow). DNA structure dependence of binding was examined for …

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Reciprocal Peer Tutoring And Treatment Integrity Of Elementary School Students, Brian M. Esteve Jan 2005

Reciprocal Peer Tutoring And Treatment Integrity Of Elementary School Students, Brian M. Esteve

LSU Master's Theses

Academic concerns are the most common reason students are referred for special services in schools. This obviously leads to the necessity for schools to have secondary prevention services in place to address the needs of students who are struggling. Peer tutoring, in its various forms, has been well documented as an effective and inexpensive intervention for all academic areas. Despite the promise of peer tutoring, research evidence suggests that teachers may not consistently carry out their roles in the peer tutoring process with sufficient accuracy to ensure positive outcomes. One possible solution to this problem is to have a consultant …

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Mapping The Other Truth In The Shintech Case: Emancipatory Mapping For Environmental Justice In South Louisiana, Charles Allen Flanagan Jan 2005

Mapping The Other Truth In The Shintech Case: Emancipatory Mapping For Environmental Justice In South Louisiana, Charles Allen Flanagan

LSU Doctoral Dissertations

This dissertation presents an alternative mapping approach which challenges the hegemony of abstract space and instrumental reason propagated by the U.S. Environmental Protection Agency (EPA) in its 1998 study of the Louisiana Department of Environmental Quality's (DEQ) permitting process. The "other truth" is presented through application of concepts from critical theory, critical geography, and the works of Henri Lefebvre to a specific environmental justice struggle in St. James Parish, Louisiana. In 1996 Shintech, Inc. proposed building a polyvinyl chloride facility in St. James Parish, Louisiana. The community, concerned about the considerable toxic burden already present in the area, formed a …

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Oxygen Uptake Efficiency Slope And Functional Physical Performance In Elderly Adults, Scott Eric Fuller Jan 2005

Oxygen Uptake Efficiency Slope And Functional Physical Performance In Elderly Adults, Scott Eric Fuller

LSU Master's Theses

Background: The Oxygen Uptake Efficiency Slope (OUES) attained during submaximal treadmill exercise is a reliable index of cardiorespiratory capacity in older adults. This investigation compares OUES values derived during treadmill walking and performance of the Continuous Scale Physical Function Performance test (CS-PFP). Method: A Cosmed portable metabolic cart was used to collect breath gases in 36 older adults (age: 81.8 +/- 7.8 years). Twenty-one subjects performed both the incremental treadmill test and the CS-PFP while an additional 15 subjects performed the CS-PFP, only. Results: The regression of log Ventilation vs. VO2 reveals similar correlations for the CS-PFP and treadmill …

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Temporal Trends In Tchula Period Pottery In Louisiana, Steven Ray Fullen Jan 2005

Temporal Trends In Tchula Period Pottery In Louisiana, Steven Ray Fullen

LSU Master's Theses

Tchula period pottery (Tchefuncte culture) in Louisiana is characterized by highly contorted and laminated pastes. These diagnostic traits have led investigators to suggest hypotheses concerning manufacturing techniques, but there has been relatively little focus on temporal trends associated with these characteristics. The first step in redressing this problem was to identify a site likely to contain archaeological assemblages that would span the Tchula period. Excavations began at the Sarah Peralta site (16EBR67) in the fall of 2001 and were concluded in the spring of 2002. Artifacts from this site were characterized according to standard identification procedures. A secondary site, the …

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Modeling And Experimentation Of Drying Of Adipose Derived Adult Stem Cells, Surbhi Mittal Jan 2005

Modeling And Experimentation Of Drying Of Adipose Derived Adult Stem Cells, Surbhi Mittal

LSU Master's Theses

Development of protocols for storing desiccated cells at ambient temperatures offers tremendous economic and practical advantages over traditional storage procedures such as cryopreservation and freeze-drying. An integrated frame work of experimentation and modeling is adopted in the present work to develop procedures for storage of adult stem cells at ambient temperature. As a first step, we have measured the post-rehydration membrane integrity of two passages, Passage-0 (P0) and Passage-1 (P1), of human adipose-derived stem cells (hASCs). hASCs were dried using a convective stage at three different drying rates (slow, moderate and rapid) in D-PBS with trehalose (50 mM) and glycerol …

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Cognitive Adaptation's Implication On Diabetic Adherence, Martin Ancona Jan 2005

Cognitive Adaptation's Implication On Diabetic Adherence, Martin Ancona

LSU Master's Theses

Diabetes, affecting more than 18 million people in the United States, is an epidemic problem. The illness is usually progressive, leading to neuropathy, blindness, and limb amputation. The most common type of the illness, Type 2 diabetes, is usually controllable through a strict combination of diet, exercise, and medication. However, non-compliance, rather than compliance, to prescribed diabetes regimens is the norm. Although past research has uncovered many of the reason that diabetics may fail to adhere to their regimen, the whole puzzle has not yet been solved. This study looked at the Cognitive Adaptation Theory in relation to diabetic adherence. …

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Electrodeposition Of Magnetic Nanowires And Nanotubes, Despina Mehedintu Davis Jan 2005

Electrodeposition Of Magnetic Nanowires And Nanotubes, Despina Mehedintu Davis

LSU Master's Theses

The current perpendicular to the plane giant magneto-resistance (CPP)-(GMR) effect makes multilayered nanowires of huge interest as magnetic sensor materials. GMR showing multilayer nanostructures are composed of alternating ferromagnetic and nonmagnetic nanometric layers. The giant magnetoresistance (GMR) property is described as a change in electrical resistance when an external magnetic field is introduced. Electrodeposition is the most efficient method for fabricating magnetic nanowires. In addition to the cost-effectiveness, electrodeposition is one of the few methods that can overcome the geometrical restrictions of inserting metals into very deep nanometric recesses, making it the favored method for nanowire and nanotube fabrication. In …

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Offshore Oil And Gas Platforms As Stepping Stones For Expansion Of Coral Communities: A Molecular Genetic Analysis, Amy D. Atchison Jan 2005

Offshore Oil And Gas Platforms As Stepping Stones For Expansion Of Coral Communities: A Molecular Genetic Analysis, Amy D. Atchison

LSU Master's Theses

The northern Gulf of Mexico (GOM) is one of the most productive oil and gas exploration areas in the world, currently containing approximately 3,800 offshore platforms. These platforms serve as artificial reefs in shallow water, which until their introduction was nearly devoid of shallow hard substrata. The question is raised whether this newly available substrate could help expand coral populations in the GOM. In this study, I examined adult scleractinian corals on oil and gas platforms in the northern GOM, in the vicinity of the Flower Garden Banks (FGB; approximately 180 km SE of Galveston, Texas) and attempted to determine …

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Effects Of 5-Ht2 Receptor Ligands On Tail Pinch-Induced Stress Responding And Open Field Behavior, John K. Hearn Jan 2005

Effects Of 5-Ht2 Receptor Ligands On Tail Pinch-Induced Stress Responding And Open Field Behavior, John K. Hearn

LSU Master's Theses

Stress is known to exert an influence on neuroendocrine, autonomic, hormonal, and immune functioning. As a result of the debilitating effects of stress on numerous bodily systems, there exists a large body of research devoted to the etiology, physiological sequelae, and treatment of the condition. Further, the neurotransmitter serotonin (5-HT) has been implicated in stress responding. Presently, there is conflict in the literature as to the precise role serotonin plays in mediating the stress response. This study was an attempt to further elucidate the role of 5-HT in mediating an organism’s response to tail pinch stress and the open field. …

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Jury Knowledge Of Eyewitness Memory: Can Jurors Use This Knowledge In The Courtroom?, Jill D. Alonzo Jan 2005

Jury Knowledge Of Eyewitness Memory: Can Jurors Use This Knowledge In The Courtroom?, Jill D. Alonzo

LSU Master's Theses

As a result of Daubert, trial judges were advised to only admit an expert once they determine 1) that the testimony is supported with scientific evidence and 2) would assist the trier(s) of fact. The present studies were designed to address the second criterion of admissibility by 1) assessing jurors' knowledge of eyewitness memory, and 2) determining if they can apply this knowledge when assessing mock courtroom testimony. In the first study, subjects evaluated trial transcripts of testimony concerning an eyewitness account where factors that influence eyewitness memory were present in either a negative form or a positive form. In …

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Assessment Of Water Conservation Technique In Rice Culture To Develop Water Use Policies, Manoch Kongchum Jan 2005

Assessment Of Water Conservation Technique In Rice Culture To Develop Water Use Policies, Manoch Kongchum

LSU Master's Theses

The rapid growth of world population has resulted in significantly increased global water demand. According to a recent report on limited water supply, conservation techniques and water use policies are needed to preserve water resources. Worldwide agriculture is the largest consumer of water, particularly for growing rice. Water use for rice production was chosen because rice will continue to be a staple crop for the majority of the world’s population and because of its pervasive use of water. Hence, this thesis was designed to investigate water conservation possibilities for rice production in two water management regimes: alternate flooding and drying, …

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The Abolition Of Wealth Transfer Taxes: Lessons From Canada, Australia And New Zealand, David G. Duff Jan 2005

The Abolition Of Wealth Transfer Taxes: Lessons From Canada, Australia And New Zealand, David G. Duff

All Faculty Publications

When the United States acted to phase-out its estate tax by 2010, it joined a small but growing group of countries which have also repealed their wealth transfer taxes. In Canada, federal gift and estate taxes were repealed in 1972 and provincial wealth transfer taxes were abolished in the 1970s and 1980s. In Australia, State and Commonwealth wealth transfer taxes were repealed in the late 1970s and early 1980s. New Zealand followed suit in the 1990s, reducing estate tax rates to zero in 1992 and repealing the tax in 1999. This paper reviews the abolition of wealth transfer taxes in …

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Four Dimensional Presentations As A New Representation Method: A Proposal For The Use Of Interactive Multimedia Presentation In Landscape Architecture, Kinoto Miyakoda Jan 2005

Four Dimensional Presentations As A New Representation Method: A Proposal For The Use Of Interactive Multimedia Presentation In Landscape Architecture, Kinoto Miyakoda

LSU Master's Theses

Few studies on presentation methods in the profession of landscape architecture have been done in the past, because evaluating presentations raises primarily subjective issues. Today, interactive multimedia presentations offer an excellent opportunity to investigate the presentation methods employed by landscape architects, gCan new communication technologies help to enhance the communication between the presenter and his audience?h This is the fundamental question addressed in this thesis. It explores interactive multimedia presentations to see their potentials, and considers ways to integrate various multimedia as presentation methods for future landscape architectural presentations. The main terms, interactivity and multimedia, are explained to understand the …

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Three Views Of Anomaly And Their Heuristic Utility, Robert Rose Jan 2005

Three Views Of Anomaly And Their Heuristic Utility, Robert Rose

LSU Master's Theses

This thesis presents three views of anomaly in explanation: the linguistic view, the perceptual view, and the mechanistic view. The linguistic view is based on the notion that an anomaly is an instance of logical inconsistency. According to the perceptual view, an anomaly is a perceptual event which consists of a phenomenon deviating from a paradigmatic set of expectations. Lastly, the mechanistic view defines anomaly as a phenomenon which reveals the predictive failure of a model of the mechanism underlying the phenomenon to be explained. Each view is evaluated in terms of its heuristic utility, in two ways: first, according …

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In Search Of Delicious, Ariya Martin Jan 2005

In Search Of Delicious, Ariya Martin

Theses

What is art? What is good art? Who are considered Artists, and why? Most important, can the very process by which we go through every day in our lives lead to an acceptable form of art-making? Furthermore, can life, my life, be put into a visual format to be viewed from outside of my life? Over the last two years I have been working with words as images, with a concept of installation as dialogue between the space, the artist, and the viewer. In my recently completed thesis show the work dealt with both the challenge of “writing a picture”, …

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By The Numbers: The Region Votes Its Fate, Richard A. Clucas, Alton Straub Jan 2005

By The Numbers: The Region Votes Its Fate, Richard A. Clucas, Alton Straub

Institute of Metropolitan Studies Publications

The author examined how the residents in the five-county region of the metropolitan area (Clackamas, Columbia, Multnomah, Washington, and Yamhill) voted in the 2004 general election on selected ballot measures in order to understand the political values of the neighborhoods in which we live. Using geographic information systems (GIS), we mapped the distribution of votes by election precinct on what we thought were three of the most revealing measures: the constitutional amendment banning same-sex marriages (Measure 36), the initiative requiring state and local governments to pay landowners when land-use restrictions reduce property value (Measure 37), and the constitutional amendment limiting …

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Portland's Regional Economy: The Dynamics Of Change, Sheila A. Martin, Amy S. Vander Vliet Jan 2005

Portland's Regional Economy: The Dynamics Of Change, Sheila A. Martin, Amy S. Vander Vliet

Institute of Metropolitan Studies Publications

As the Portland-Vancouver economy emerges from recession, regional residents must come to terms with the realities of a restructured economy. The familiar sectors and industries upon which we based success in the past likely will no longer sustain us, at least to the degree they once did. We are simultaneously witnessing the rebuilding of an economy while suffering the symptoms of radical change. The slowdown that began in the Portland region in the summer of 2000 was caused, in part, by cyclical downturns in several of the region's key industries. As the region continues to recover, it will most likely …

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Park It Here: The Making Of Hare's Canyon Park, Mateusz Perkowski Jan 2005

Park It Here: The Making Of Hare's Canyon Park, Mateusz Perkowski

Metroscape

A history and overview of the development of Hare's Canyon Park, Oregon's first new state park in over 30 years.

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Bulletin: General Catalog Issue 2005-2006, Portland State University Jan 2005

Bulletin: General Catalog Issue 2005-2006, Portland State University

Bulletin & Curriculum Change Documents

No abstract provided.

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Two Men Who Invented Genetics, Michael Dietrich Jan 2005

Two Men Who Invented Genetics, Michael Dietrich

Dartmouth Scholarship

A review of two books:\r\nThe Man Who Invented the Chromosome: a Life of Cyril Darlington by Oren Solomon Harman, 2004 and\r\nGeorge Beadle, and Uncommon Farmer: The Emergence of Genetics in the 20th Century, 2003 by Paul Berg and Maxine Singer.

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Discovering Cell Mechanisms: The Creation Of Modern Cell Biology, Michael Dietrich Jan 2005

Discovering Cell Mechanisms: The Creation Of Modern Cell Biology, Michael Dietrich

Dartmouth Scholarship

Review of Discovering Cell Mechanisms: The Creation ofModern Cell Biology. Cambridge Studies in Philosophy and Biology. By William Bechtel. Cambridge and New York: Cam-bridge University Press. xii 323 p; ill.; index. ISBN: 052181247X. 2006.

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Knowing When To Draw The Line: Designing More Informative Ecological Experiments, Kathryn L. Cottingham, Jay T. Lennon, Bryan L. Brown Jan 2005

Knowing When To Draw The Line: Designing More Informative Ecological Experiments, Kathryn L. Cottingham, Jay T. Lennon, Bryan L. Brown

Dartmouth Scholarship

Linear regression and analysis of variance (ANOVA) are two of the most widely used statistical techniques in ecology. Regression quantitatively describes the relationship between a response variable and one or more continuous independent variables, while ANOVA determines whether a response variable differs among discrete values of the independent variable(s). Designing experiments with discrete factors is straightforward because ANOVA is the only option, but what is the best way to design experiments involving continuous factors? Should ecologists prefer experiments with few treatments and many replicates analyzed with ANOVA, or experiments with many treatments and few replicates per treatment analyzed with regression? …

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Interleukin-17/Interleukin-17 Receptor-Mediated Signaling Is Important For Generation Of An Optimal Polymorphonuclear Response Against Toxoplasma Gondii Infection, Michelle N. Kelly, Jay K. Kolls, Kyle Happel, Joseph D. Schwartzman Jan 2005

Interleukin-17/Interleukin-17 Receptor-Mediated Signaling Is Important For Generation Of An Optimal Polymorphonuclear Response Against Toxoplasma Gondii Infection, Michelle N. Kelly, Jay K. Kolls, Kyle Happel, Joseph D. Schwartzman

Dartmouth Scholarship

We investigated the role of interleukin-17 (IL-17)/IL-17 receptor (IL-17R)-mediated signaling in the protective immunity against Toxoplasma gondii. IL-17R−/− mice developed a normal adaptive immunity against the parasite. However, increased mortality in the knockout animals can be attributed to a defect in the migration of polymorphonuclear leukocytes to infected sites during early infection.

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Knowledge-Based Fault Detection Using Time-Frequency Analysis, Venkata S. Vongala Jan 2005

Knowledge-Based Fault Detection Using Time-Frequency Analysis, Venkata S. Vongala

LSU Master's Theses

This work studies a fault detection method which analyzes sensor data for changes in their characteristics to detect the occurrence of faults in a dynamic system. The test system considered in this research is a Boeing-747 aircraft system and the faults considered are the actuator faults in the aircraft. The method is an alternative to conventional fault detection method and does not rely on analytical mathematical models but acquires knowledge about the system through experiments. In this work, we test the concept that the energy distribution of resolution than the windowed Fourier transform. Verification of the proposed methodology is carried …

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Urban Yellow Fever Diffusion Patterns And The Role Of Micro-Environmental Factors In Disease Dissemination: A Temporal-Spatial Analysis Of The Memphis Epidemic Of 1878, William Brennan Arden Jan 2005

Urban Yellow Fever Diffusion Patterns And The Role Of Micro-Environmental Factors In Disease Dissemination: A Temporal-Spatial Analysis Of The Memphis Epidemic Of 1878, William Brennan Arden

LSU Master's Theses

Most investigations that examine diffusion of disease through urban areas give relatively scant attention to the 'micro-environment.' Employing the many methods of macro-environmental analysis, most studies do not attempt to identify street-level or even residence-level temporal-spatial patterns of disease diffusion. As a result, the mechanisms that lead to diffusion on such small scales are left relatively undefined. There is no doubt that cumulatively these small-scale mechanisms contribute to the diffusion of disease over the urban environment. However, the level of contribution and the specific details of their dynamics remain unclear. This thesis investigated some of these unexplored areas by presenting …

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Performance Based Switching Control For Single Input Linear Time Invariant Systems, Lalitha Srigouri Devarakonda Jan 2005

Performance Based Switching Control For Single Input Linear Time Invariant Systems, Lalitha Srigouri Devarakonda

LSU Master's Theses

In the present research, we propose a new control strategy to improve the performance of a linear time invariant single input system. We consider a performance index that is dependent only on the controlled variable and try to improve it over that obtained when using a stable state feedback control. Since the control law depends on the performance of the controlled variable, we call it Performance Based Switching Control (PBSC). Switching between two state feedbacks is used to achieve this improvement in performance. The switching strategy combines the best features of both strategies. The switching surface is actually composed of …

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Changing Face: The Evolution Of Chinese Women's Dress And Appearance, Xiaolan Wang Jan 2005

Changing Face: The Evolution Of Chinese Women's Dress And Appearance, Xiaolan Wang

LSU Master's Theses

Women’s dress and appearance can reflect a lot about a civilized society. It is influenced by many factors as well. The dress and appearance of contemporary Chinese women have not been studied much by mass communication researchers. This paper, however, explored the factors that influence the development and evolution of contemporary Chinese women’s dress and appearance. It traced back from Dynastic China to Republican China and then to Mao’s red China to examine the historical and political influences imposed on the dress and appearance of Chinese women. Then, it used in-depth interviews to find out factors that influence women’s dress …

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Effects Of Mental Rotation, Visual Aids And Training On Inspection Performance During Airport Baggage Inspection, Sunil Addepalli Jan 2005

Effects Of Mental Rotation, Visual Aids And Training On Inspection Performance During Airport Baggage Inspection, Sunil Addepalli

LSU Master's Theses

Since 9/11, airport security has become an area of critical national security. The current study investigates the effect of mental rotation training and the presence of visual decision aids on inspection performance. Forty-eight participants were divided into two groups (Group A and Group B) of twenty-four each. Each group was provided with training on visual inspection, baggage screening and on using the software simulation of airport baggage inspection. Participants had to identify from images any object that cannot be allowed on a passenger plane and register a response by clicking one of the buttons, “Threat” or “No Threat”. Participants in …

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