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2001

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Synthesis And Characterization Of Neutral/Ionic Block Copolymers Of Various Architectures., Jinchuan Yang Jan 2001

Synthesis And Characterization Of Neutral/Ionic Block Copolymers Of Various Architectures., Jinchuan Yang

All ETDs from UAB

No abstract provided.

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Models, Algorithms, And Measurements For Underwater Acoustic Positioning, Harold Thomas Vincent Ii Jan 2001

Models, Algorithms, And Measurements For Underwater Acoustic Positioning, Harold Thomas Vincent Ii

Open Access Dissertations

Several problems in underwater acoustic position estimation are investigated within the context of their associated models, algorithms, and measurements. The first appendix provides a detailed discussion of these concepts and demonstrates the fact that simultaneous consideration of all three is necessary in order to properly address a particular position estimation problem. The particular problems addressed herein stem from the so-called long baseline underwater acoustic positioning method whose principle of operation is hyperbolic multilateration; a technique employed in the now common Global Positioning System and its predecessor systems such as Long Range Navigation (LORAN), Decca and Omega. Although motivated by this …

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Photoemission And Photo-Absorption Studies Of Ultrathin Iron Films On Copper(100) Oxidized At Elevated Temperature., Reginaldt Hamilton Madjoe Jan 2001

Photoemission And Photo-Absorption Studies Of Ultrathin Iron Films On Copper(100) Oxidized At Elevated Temperature., Reginaldt Hamilton Madjoe

LSU Historical Dissertations and Theses

In this investigation, I have focused on understanding the structure and morphology of ultrathin iron oxide films and characterizing them by using LEED, photoemission (both angle-resolved and angle-integrated) and photoabsorption measurements. Fe films were deposited on a Cu(100) substrate at room temperature growing in a layer by layer fashion. The sample was then annealed to 810K in oxygen ambient. This oxidation process led to dramatic changes of the sample surface and electronic structure depending on initial Fe coverage. Half-metallic oxides such as CrO2 and Fe3O4 may provide opportunities for new magnetic devices since their single spin orientation at the Fermi …

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Improved Matrix-Assisted Laser Desorption/Ionization Linear Time-Of-Flight Mass Spectrometry Of Oligonucleotides And Nucleic Acids Via Matrix Additives And Sample Preparatory Technique., Tracey Arlene Simmons Jan 2001

Improved Matrix-Assisted Laser Desorption/Ionization Linear Time-Of-Flight Mass Spectrometry Of Oligonucleotides And Nucleic Acids Via Matrix Additives And Sample Preparatory Technique., Tracey Arlene Simmons

LSU Historical Dissertations and Theses

There are two prominent problems recurrent during matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analysis of oligonucleotides: cation adduction and low molecular ion stability. It has been found that the use of organic base solutions of high gas-phase proton affinity, as used previously in electrospray ionization mass spectrometry (ESI-MS), can significantly reduce the cation adduction problem during MALDI-MS. It is proposed that the organic base solutions compete with alkali metal cations for binding to the phosphodiester backbone of the oligonucleotide upon transfer into the gas phase. A comparison of the utility of adding an organic base solution, such as imidazole, triethylamine …

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A Hierarchical Shape Representation By Convexities And Concavities And Its Application To Shape Matching., Gustavo Martinez Jan 2001

A Hierarchical Shape Representation By Convexities And Concavities And Its Application To Shape Matching., Gustavo Martinez

LSU Historical Dissertations and Theses

Shape contains information. The identification and extraction of this information is not straightforward and is the main problem of Shape Analysis. The current trend of manipulating visual information, makes this problem more important. The abundant work published about shape analysis can be classified into two main approaches: statistical shape analysis and structural shape analysis. The structural approach was proposed around thirty years ago by K. S. Fu. The large amount of works published since then, prove the difficulty of defining a universal set of primitives. The structural description of shape is based on the assumption that shape recognition is a …

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Shell Model Description Of Normal Parity Bands In Heavy Deformed Nuclei., Gabriela Popa Jan 2001

Shell Model Description Of Normal Parity Bands In Heavy Deformed Nuclei., Gabriela Popa

LSU Historical Dissertations and Theses

The low-energy spectra and electromagnetic transition strengths in 160,162,164Dy, 156,158,160Gd, and 168Er are described in the framework of the pseudo-SU(3) model. The Hamiltonian includes spherical single-particle energies, the Quadrupole-quadrupole interaction, and proton and neutron pairing terms with the strengths of these interaction fixed from systematics. The strengths of an additional four rotor-like terms that are included in the Hamiltonian, which do not mix SU(3) representations and induce only small changes in the spectra, were allowed to vary and a consistent set of these parameters was found. Proton and neutron degrees of freedom are considered explicitly by building the basis states …

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Red Morningglory (Ipomoea Coccinea L.) And Sugarcane Response To Soil-Applied Herbicides., Blaine Joseph Viator Jan 2001

Red Morningglory (Ipomoea Coccinea L.) And Sugarcane Response To Soil-Applied Herbicides., Blaine Joseph Viator

LSU Historical Dissertations and Theses

Laboratory and greenhouse studies were conducted to determine if reported red morningglory (Ipomoea coccinea L.) control failures with atrazine in sugarcane are due to triazine-resistant mutants. Terminal fluorescence of leaf material from locations with and without a history of atrazine use increased after treatment with atrazine, indicating electron transport inhibition and hence, triazine susceptibility. Postemergence (POST) application of atrazine controlled plants from all populations at least 99%, supporting findings of the fluorescence assay. A field study was conducted to evaluate red morningglory control and sugarcane injury with herbicides applied at layby. At 45 days after treatment (DAT), control with sulfentrazone …

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Center Vortices In Confinement., Viorel-Andrei Alexandru Jan 2001

Center Vortices In Confinement., Viorel-Andrei Alexandru

LSU Historical Dissertations and Theses

The confinement property of quarks is still one of the puzzles of today's physics. Although QCD is believed to accurately describe the interaction between quarks, due to the peculiar nature of the theory we are still unable to prove that it confines the quarks. Most analytical efforts in QCD are based on perturbative techniques which are useless in studying confinement. Lattice gauge theory enables us to get non-perturbative results. We use lattice techniques to investigate one of the proposed mechanisms of quark confinement, namely the center vortex idea. We first present a cursory introduction to lattice theory and the methods …

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Teacher Education Reform And Accountability: A Study Of The Louisiana Blue Ribbon Commission On Teacher Quality., Patricia Ann Davis Exner Jan 2001

Teacher Education Reform And Accountability: A Study Of The Louisiana Blue Ribbon Commission On Teacher Quality., Patricia Ann Davis Exner

LSU Historical Dissertations and Theses

This study describes Louisiana's 1999--2000 Blue Ribbon Commission on Teacher Quality, focusing primarily on Commission proceedings and the evolution of its recommendations within a context of standards-based teacher education reform history. Employing case study methodology contextualized in historical and ethnographic narrative, this nine month study examined policy recommendations for Louisiana's teacher education programs that resulted from Commission meetings. Aims of the study included describing the development of these recommendations, their relation to national teacher education reform movements, and their potential impact on university teacher preparation programs. The research provides not only documentation of Commission proceedings of some historical value, but …

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A Neural Network Approach To Dependent *Reliability Estimation., Roya Javadpour Jan 2001

A Neural Network Approach To Dependent *Reliability Estimation., Roya Javadpour

LSU Historical Dissertations and Theses

This research presents the creation of a new model for automating the generation of component and system reliability estimates from simulated field data for tightly coupled systems. The model utilizes the CMAC neural network architecture, which resembles the human cerebellum and is capable of approximating nonlinear functions. An analysis and testing of the network as a tool for reliability prediction of dependent components within an assembly has been performed. In order to evaluate the performance of the model, the network has been tested on simulated data and provided over 90% performance accuracy in learning non-linear functions that represent the dependency …

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An Exploratory Study Of The Influence Of National And State Standards On Middle School Science Teachers' Classroom Assessment Practices., Kathy Jean Mcwaters Jan 2001

An Exploratory Study Of The Influence Of National And State Standards On Middle School Science Teachers' Classroom Assessment Practices., Kathy Jean Mcwaters

LSU Historical Dissertations and Theses

Classroom assessment practices of middle school science teachers were identified and the influence of national and state science standards on these practices was examined. In Phase I of this study a mail questionnaire was sent to 450 middle school (grades 5,6,7 and 8) science teachers in 17 parishes in Louisiana to obtain information about their classroom assessment practices. In Phase II, nine middle school teachers in eight departmentalized classrooms, two classes at each grade, participated in a qualitative study. Data were collected through questionnaires, classroom observations, interviews and document analysis. Data analysis revealed three major categories of classroom assessment targets: …

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Wavelet Analysis And Classification Of Urban Environment Using High -Resolution Multispectral Image Data., Soe Win Myint Jan 2001

Wavelet Analysis And Classification Of Urban Environment Using High -Resolution Multispectral Image Data., Soe Win Myint

LSU Historical Dissertations and Theses

Attempts to analyze urban features and classify land use and land cover directly from high-resolution satellite data with traditional computer classification techniques have proven to be inefficient. The fundamental problem usually found in identifying urban land cover types from high-resolution satellite imagery is that urban areas are composed of diverse materials (metal, glass, concrete, asphalt, plastic, trees, soil, etc.). These materials, each of which may have completely different spectral characteristics, are combined in complex ways by human beings. Hence, each urban land cover type may contain several different objects with different reflectance values. Noisy appearance with lots of edges, and …

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Understanding The Connections Between High-Stakes Test Consequences And School Literacy Experiences., Deborah Karen Setliff Jan 2001

Understanding The Connections Between High-Stakes Test Consequences And School Literacy Experiences., Deborah Karen Setliff

LSU Historical Dissertations and Theses

The purpose of this ethnographic study was to connect the remedial summer school experiences of two fourth-grade students and four fifth-grade students with their school literacy experiences the following year. Understanding the students' experiences and connecting the experiences with school personnel provided a link between the students' and school personnel's perceptions of high-stakes testing consequences. Bridging these perceptions through cross-case analysis revealed the physical, emotional, and philosophical effects high-stakes testing is having on the students, school administrators, classroom teachers, and reading curriculum and instruction at the two elementary schools studied. Integrating the findings at the two schools helped develop a …

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Mapping By Cooperative Mobile Robots., Thomas Oliver Smailus Jan 2001

Mapping By Cooperative Mobile Robots., Thomas Oliver Smailus

LSU Historical Dissertations and Theses

Constructing a system of intelligent robotic mapping agents that can function in an unstructured and unknown environment is a challenging task. With the exploration of our solar system as well as our own planet requiring more robust mapping agents, and with the drastic drop in the price of technology versus the gains in performance, robotic mapping is becoming a focus of research like never before. Efforts are underway to send mobile robots to map bodies within our solar system. While much of the research in robotic map construction has been focused on building maps used by the robotic agents themselves, …

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Estimation Of Oceanic Surface Velocity Vector Fields Using Multiresolution., Guillermo Tonsmann Jan 2001

Estimation Of Oceanic Surface Velocity Vector Fields Using Multiresolution., Guillermo Tonsmann

LSU Historical Dissertations and Theses

This dissertation presents a new method for the estimation of oceanic surface velocity vector fields using multiresolution. Multiresolution is the ability to analyze a signal at various levels of resolution. In this dissertation, wavelet analysis is used to obtain multiresolution. This method requires the use of two sea surface temperature (SST) images of the same region taken within a known time interval. Wavelet analysis is performed in both images to reveal their components at decreasing resolution levels. The comparison of these components at each level yields vector fields representing local displacements of features within the images. These vector fields are …

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Spatial Variability And Isotopic Studies Of The Prairie -Forest Transition Soil In Louisiana., Asfaw Bekele Jan 2001

Spatial Variability And Isotopic Studies Of The Prairie -Forest Transition Soil In Louisiana., Asfaw Bekele

LSU Historical Dissertations and Theses

The calcareous prairies of Louisiana are among the most endangered ecosystems in North America. The major threat to this ecosystem is the invasion by woody and herbaceous plants, primarily eastern red cedar (Juniperus virginiana ). The restoration and management of these rare plant communities require a thorough understanding of the soils supporting them. Geostatistical, fractal, and stable isotopic procedures were integrated to study the soil and vegetation spatial variability. The prairie soil was alkaline, the forest soil was acidic, and the transition soil was neutral. The spherical model described the spatial variability of virtually all the soil properties considered with …

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An Inquiry Into The Influence Of Taped Books On The Oral Reading Performance Of Struggling Third-Grade Readers., Dolores Doga Harris Jan 2001

An Inquiry Into The Influence Of Taped Books On The Oral Reading Performance Of Struggling Third-Grade Readers., Dolores Doga Harris

LSU Historical Dissertations and Theses

The purpose of the nine-week study was to explore, using taped book intervention, the oral reading fluency of six struggling third-grade readers. The low-income, inner city, African American students were selected using teacher recommendations, standardized test scores, and the school system's Grade Level Indicators of Essential Knowledge---Grade 3 English Language Arts. Procedures used in the study were observing, collecting field notes, reviewing documents, conducting open-ended interviews, prioritizing book selection interests, and making assessments. Pre- and post-intervention assessments included the following: (1) oral reading rate---the Gray Oral Reading Test-3 (GORT-3), two-minute timed readings, and Corduroy benchmark probes; (2) word recognition---Slosson Oral …

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English Immersion Program In Korea: Student Progress After Four Months Of Implementation., Jaiwon Jung Jan 2001

English Immersion Program In Korea: Student Progress After Four Months Of Implementation., Jaiwon Jung

LSU Historical Dissertations and Theses

In Korea, efforts to teach a non-native language, such as English, to Korean students usually result in native speakers acquiring limited language abilities. As a result, the teaching of English has little effect upon making native speakers fluent in a non-native language. Many foreign language instructors in Korea attempt to find new teaching methods to improve the performance of students in foreign language proficiency. Among the various innovative approaches of the 20th century, research has shown that the immersion approach may be one of the most effective means. Thus this dissertation introduces the innovative immersion teaching methods for Korean school …

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Ways Of Incorporating Photographic Images In Learning And Assessing High School Biology: A Study Of Visual Perception And Visual Cognition., Brenda Chaumont Nixon Jan 2001

Ways Of Incorporating Photographic Images In Learning And Assessing High School Biology: A Study Of Visual Perception And Visual Cognition., Brenda Chaumont Nixon

LSU Historical Dissertations and Theses

This study evaluated the cognitive benefits and costs of incorporating biology-textbook and student-generated photographic images into the learning and assessment processes within a 10th grade biology classroom. The study implemented Wandersee's (2000) 20-Q Model of Image-Based Biology Test-Item Design (20-Q Model) to explore the use of photographic images to assess students' understanding of complex biological processes. A thorough review of the students' textbook using ScaleMaster R with PC Interface was also conducted. The photographs, diagrams, and other representations found in the textbook were measured to determine the percentage of each graphic depicted in the book and comparisons were made to …

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Measurement Of Bottom Quark Production In Two -Photon Collisions., Sepehr Saremi Jan 2001

Measurement Of Bottom Quark Production In Two -Photon Collisions., Sepehr Saremi

LSU Historical Dissertations and Theses

The cross section for bottom quark production in two-photon collisions, sigma( e+e- → e+e- bb¯X), is measured for the first time. The measurement is performed with the L3 detector at the Large Electron Positron (LEP) collider at the European Center for Nuclear and Particle Physics (CERN). The data corresponds to 410 pb-1 taken at center-of-mass energies from 189 GeV to 202 GeV. Hadrons containing a bottom quark are identified by detecting electrons or muons from their semi-leptonic decays. The measured cross section is in excess of the Next to Leading Order QCD prediction by a factor of three.

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Imsa 2001 Profile, Office Of College And Academic Counseling Jan 2001

Imsa 2001 Profile, Office Of College And Academic Counseling

IMSA Profile

No abstract provided.

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Identification Of The Domains Of Urer, An Arac-Like Transcriptional Regulator Of The Urease Gene Cluster In Proteus Mirabilis, Carrie A. Poore, Christopher Coker, Jonathan D. Dattelbaum, Harry L.T. Mobley Jan 2001

Identification Of The Domains Of Urer, An Arac-Like Transcriptional Regulator Of The Urease Gene Cluster In Proteus Mirabilis, Carrie A. Poore, Christopher Coker, Jonathan D. Dattelbaum, Harry L.T. Mobley

Chemistry Faculty Publications

Proteus mirabilis urease catalyzes the hydrolysis of urea to CO2 and NH3, resulting in urinary stone formation in individuals with complicated urinary tract infections. UreR, a member of the AraC family, activates transcription of the genes encoding urease enzyme subunits and accessory proteins, ureDABCEFG, as well as its own transcription in the presence of urea. Based on sequence homology with AraC, we hypothesized that UreR contains both a dimerization domain and a DNA-binding domain. A translational fusion of the leucine zipper dimerization domain (amino acids 302 to 350) of C/EBP and the C-terminal half of UreR …

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Theory, Application And The Canon: The Case Of Mill And Jevons, Sandra J. Peart Jan 2001

Theory, Application And The Canon: The Case Of Mill And Jevons, Sandra J. Peart

Jepson School of Leadership Studies articles, book chapters and other publications

Whatever disputes remain about the nature and content of the "canon" of economics, it is widely accepted that the boundary of economic science was narrowed throughout the nineteenth century (Winch 1972). This chapter offers a partial explanation for that narrowing in the methodological developments that occurred during the second half of the century. For reasons of practicality in the face of pronounced "multiplicity of cause," John Stuart Mill called, In his 1836 Essay On the Definition of Political Economy; and on the Method of Investigation Proper to It, and again in his 1843 Logic, for a separate …

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The Most Dangerous Justice Rides Again: Revisiting The Power Pageant Of The Justices, Paul H. Edelman, Jim Chen Jan 2001

The Most Dangerous Justice Rides Again: Revisiting The Power Pageant Of The Justices, Paul H. Edelman, Jim Chen

Vanderbilt Law School Faculty Publications

Who is the most powerful Supreme Court Justice? In 1996 we measured voting power on the Court according to each Justice's ability to form five-member coalitions. From the set of all coalitions formed by the Court during its 1994 and 1995 Terms, we developed a generalized Banzhaf index of the Justices' relative strength. Generally speaking, participating in a greater number of unique coalitions translates into greater judicial voting power. To supplement the small number of decisions then available, we derived hypothetical five-Justice coalitions from the intersections of actually observed coalitions involving more than five members. Professor Lynn Baker contested our …

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Linkage Isomers Of Tungsten Carbonyl Complexes Of Ph₂Pch₂Pphch₂Pph₂, Chaminda P. Gamage Jan 2001

Linkage Isomers Of Tungsten Carbonyl Complexes Of Ph₂Pch₂Pphch₂Pph₂, Chaminda P. Gamage

Masters Theses

The linkage isomers (CO)5W[η1-PPh2CH2PPhCH2PPh2], 1, and (CO)5 W[η1-PPh(CH2PPh2)2], 2, have been synthesized from the reaction of (OC)5W(NH2Ph) and Ph2PCH2PPhCH2PPh2. In addition, linkage isomers (CO)5W[μ-PPh2CH2PPhCH2PPh2]-W(CO)5, 3, and (CO)5W{μ-PPh2CH2PPh[W(CO)5] CH2PPh2}, 4, have been prepared. Attempts to obtain (OC)5WPPh2CH …

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Panel 2: Enfranchising The Disenfranchised, Edward Still, J. Gerald Hebert, Melissa Saunders, Penda D. Hair Jan 2001

Panel 2: Enfranchising The Disenfranchised, Edward Still, J. Gerald Hebert, Melissa Saunders, Penda D. Hair

Journal of Law and Policy

No abstract provided.

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Monkey Business And Unnatural Selection: Opening The Schoolhouse Door To Religion By Discrediting The Tenets Of Darwinism, Diana M. Rosenberg Jan 2001

Monkey Business And Unnatural Selection: Opening The Schoolhouse Door To Religion By Discrediting The Tenets Of Darwinism, Diana M. Rosenberg

Journal of Law and Policy

No abstract provided.

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Paradoxes Of Fair Division, Paul H. Edelman, Steven J. Brams, Peter C. Fishburn Jan 2001

Paradoxes Of Fair Division, Paul H. Edelman, Steven J. Brams, Peter C. Fishburn

Vanderbilt Law School Faculty Publications

Paradoxes, if they do not define a field, render its problems intriguing and often perplexing, especially insofar as the paradoxes remain unresolved. Voting theory, for example, has been greatly stimulated by the Condorcet paradox, which is the discovery by the Marquis de Condorcet that there may be no alternative that is preferred by a majority to every other alternative, producing so-called cyclical majorities. Its modern extension and generalization is Arrow's theorem, which says, roughly speaking, that a certain set of reasonable conditions for aggregating individuals' preferences into some social choice are inconsistent. In the last fifty years, hundreds of books …

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Getting Past Democracy, Edward L. Rubin Jan 2001

Getting Past Democracy, Edward L. Rubin

Vanderbilt Law School Faculty Publications

The tension between our concept of democracy and the government we actually possess is well known, despite our insistent efforts to claim that the term "democracy" accurately describes our governmental system. One area where this tension has been apparent is American constitutionalism. The conflict between our concept of democracy and the institution of judicial review became a political issue when the Supreme Court placed itself in opposition to Progressive Era and New Deal legislation. This same conflict subsequently served as a central concern of the Legal Process School, which indelibly characterized it as the "counter-majoritarian difficulty."' The more far-reaching and …

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Director Accountability And The Mediating Role Of The Corporate Board, Margaret M. Blair Jan 2001

Director Accountability And The Mediating Role Of The Corporate Board, Margaret M. Blair

Vanderbilt Law School Faculty Publications

One of the most pressing questions facing both corporate scholars and business people today is how corporate directors can be made accountable. Before addressing this issue, however, it seems important to consider two antecedent questions: To whom should directors be accountable? And for what? Contemporary corporate scholarship often starts from a "shareholder primacy" perspective that holds that directors of public corporations ought to be accountable only to the shareholders, and ought to be accountable only for maximizing the value of the shareholders' shares. This perspective rests on the conventional contractarian assumption that the shareholders are the sole residual claimants and …

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