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2003

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Mathematical Modeling Analysis Of Floating Bead Biofilter Applications To Domestic Wastewater Treatment, Qiang Wu Jan 2003

Mathematical Modeling Analysis Of Floating Bead Biofilter Applications To Domestic Wastewater Treatment, Qiang Wu

LSU Master's Theses

Floating Bead Biofilters (FBFs) have been applied to aquacultural recirculating tanks and domestic wastewater treatment systems for controlling total ammonia nitrogen (TAN), biochemical oxygen demand (BOD), and total suspended solids (TSS). Support modified media in these FBFs provide a large surface area (1150~1475 m2/m3) so that the active biofilm can be retained in the FBF by attaching to the media surface. Understanding the theories involved in biofilm processes greatly helps in sizing, designing, and modeling of FBF systems. Fundamental biofilm processes like mass transport of various substrates into the biofilm and the substrate utilization within the biofilm were studied. A …

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Street Fighting: Lessons Learned From The Battle For Hue For 21st Century Urban Warfare, Edward J. O'Neill Jan 2003

Street Fighting: Lessons Learned From The Battle For Hue For 21st Century Urban Warfare, Edward J. O'Neill

LSU Master's Theses

Increasing urbanization in a global setting of political and economic instability indicates that urban warfare may well be the major conflict scenario of the 21st century. The United States armed forces are not currently prepared to meet that challenge. The last major urban conflict involving the American military was the Battle of Hue during the Vietnam War. As part of the Tet Offensive in 1968, Communist forces seized control of Hue and held it for nearly a month. Having undergone intensive tactical training for their mission, the enemy, solidly entrenched in buildings of various kinds, offered fierce resistance to the …

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Developing Risk Assessment Maps For Schistosoma Haematobium In Kenya Based On Climate Grids And Remotely Sensed Data, Kelsey Lee Mcnally Jan 2003

Developing Risk Assessment Maps For Schistosoma Haematobium In Kenya Based On Climate Grids And Remotely Sensed Data, Kelsey Lee Mcnally

LSU Master's Theses

It is important to be able to predict the potential spread of water borne diseases when building dams or redirecting rivers. This study was designed to test whether the use of a growing degree day (GDD) climate model and remotely sensed data (RS) within a geographic information system (GIS), could be used to predict both the distribution and severity of Schistosoma haematobium. Growing degree days are defined as the number of degrees centigrade over the minimum temperature required for development. The base temperature and the number of GDD required to complete one generation varies for each species. A monthly climate …

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Particle Trapping In Stratified Estuaries - Definition Of A Parameter Space, David A. Jay, Philip M. Orton, Thomas A. Chisholm, Douglas J. Wilson, Annika M. Fain, John Mcginity Jan 2003

Particle Trapping In Stratified Estuaries - Definition Of A Parameter Space, David A. Jay, Philip M. Orton, Thomas A. Chisholm, Douglas J. Wilson, Annika M. Fain, John Mcginity

Civil and Environmental Engineering Faculty Publications and Presentations

Estuarine turbidity maxima (ETM) retain suspended particulate matter (SPM) through advection, settling, aggregation and non-linearities in bed processes. This contribution defines for the first time a parameter space descriptive of ETM water-column particle trapping processes through a scaling analysis of the local and integral SPM balances. In the absence of long-term deposition, there are five primary parameters for the large particles or aggregates that are typically trapped. Rouse number P, the ratio of settling velocity WS of the SPM relative to the shear velocity U*, describes the material trapped in the ETM in terms of the local vertical balance between …

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Assessing The Feasibility Of Supplying Vehicle Activity Data To Mobile6 Using The Global Positioning System (Gps), Srinivas Varanasi Jan 2003

Assessing The Feasibility Of Supplying Vehicle Activity Data To Mobile6 Using The Global Positioning System (Gps), Srinivas Varanasi

LSU Master's Theses

MOBILE6 is a software program developed by the U.S. Environmental Protection Agency (EPA) to estimate current and future vehicle emissions. The EPA requires all states to develop emission inventories for State Implementation Plans (SIPs) and to demonstrate conformity in non-attainment areas. The primary objective of the MOBILE models is to develop emission inventories in compliance with EPA’s regulations. The research reported in this study is primarily a proof-of-concept study of the feasibility of the Global Positioning System (GPS) to supply vehicle activity data to MOBILE6. However, it also deals with identifying vehicle registration input to MOBILE6 using non-GPS sources. Input …

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Sustainable Agriculture And The Red Stick Farmers' Market: An Exploration Of The Use Of Concept In Design, Lawrence Christopher Campany Jan 2003

Sustainable Agriculture And The Red Stick Farmers' Market: An Exploration Of The Use Of Concept In Design, Lawrence Christopher Campany

LSU Master's Theses

This is a treatise on an attempt to translate a concept -- the driving principle of a design in the parlance of the design studios at the Louisiana State University School of Landscape Architecture -- into practice, form and function. If form follows function, as states the oft quoted proverb of design credited to Louis Sullivan, then perhaps as much attention should be given to the design of the function as the form. What this treatise will demonstrate is that function designed around a concept can result in physical manifestations, or forms, of that concept. In this case a concept …

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From Lime Kilns To Art Galleries: A Historical Anthropogeography Of The Maine Coast City Of Rockland, William Francis Fagan Jan 2003

From Lime Kilns To Art Galleries: A Historical Anthropogeography Of The Maine Coast City Of Rockland, William Francis Fagan

LSU Doctoral Dissertations

This dissertation is a historical anthropogeography that focuses on the city of Rockland, Maine from its prehistoric beginnings to the present. Throughout the historic period, a series of single industries have dominated Rockland's economy while its population has remained remarkably stable. Lime production, for mortar and plaster, was first, beginning with the earliest Europeans in the area in the eighteenth century and coming to its end in the 1930s. Shipping and shipbuilding were important outgrowths of the lime industry but shipbuilding ended by the early 1920s with the change from wood to steel as the favored material for shipbuilding. Commercial …

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Mechanisms And Control Of Water Inflow To Wells In Gas Reservoirs With Bottom Water Drive, Miguel Armenta Jan 2003

Mechanisms And Control Of Water Inflow To Wells In Gas Reservoirs With Bottom Water Drive, Miguel Armenta

LSU Doctoral Dissertations

Water inflow may cease production of gas wells, leaving a significant amount of gas in the reservoir. Conventional technologies of gas well dewatering remove water from inside the wellbore without controlling water at its source. This study addresses mechanisms of water inflow to gas wells and a new completion method to control it. In a vertical oil well, the water cone top is horizontal, but in a gas well, the gas/water interface tends to bend downwards. It could be economically possible to produce gas-water systems without water breakthrough. Non-Darcy flow effect (NDFE), vertical permeability, aquifer size, density of well perforation, …

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Potential Functionality And Digestibility Of Oryzanol As Determined Using In Vitro Cell Culture Models, Chih-Chun Jean Huang Jan 2003

Potential Functionality And Digestibility Of Oryzanol As Determined Using In Vitro Cell Culture Models, Chih-Chun Jean Huang

LSU Doctoral Dissertations

A mouse lymphatic endothelial cell (SVEC4-10) model and a human intestinal cell (C2BBe1) model in vitro were developed and capable to be used to study antioxidant activity, hypocholesterolemic capability and digestibility of γ-oryzanol. The critical and vital parameters in developing these cell models were the emulsion preparation of hydrophobic compounds for cell models, the consistent management of cell culture, and the selection of cell viability detection methods compatible with the cell lines and the test substances. The results showed that, in some situations, γ-oryzanol could present a more effective antioxidant activity than α-tocopherol, in terms of reducing tert-butyl hydroperoxide promoted …

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How To Make A Girl: Female Sexuality In Young Adult Literature, Ann Elizabeth Younger Jan 2003

How To Make A Girl: Female Sexuality In Young Adult Literature, Ann Elizabeth Younger

LSU Doctoral Dissertations

Young Adult literature is an important source of information for young readers, and this genre makes a distinct contribution to the cultural and social construction of femininity and female sexuality in its pages. How to Make a Girl: Female Sexuality in Young Adult Literature analyzes representations of female sexuality in more than fifty texts. By examining these texts in relation to each other and in terms of historical development, this project creates a literary history of female sexuality in Young Adult fictions. By depicting young women in varying stages of adolescence and young adulthood, these fictional texts offer unique representations …

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Immiscible And Miscible Gas-Oil Displacements In Porous Media, Madhav Mukund Kulkarni Jan 2003

Immiscible And Miscible Gas-Oil Displacements In Porous Media, Madhav Mukund Kulkarni

LSU Master's Theses

Gas Injection is the second largest EOR process in U.S. To increase the extent of the reservoir contacted by displacing fluids, gas and water are injected intermittently - water-alternating-gas (WAG) process, is widely practiced. This experimental study is aimed at evaluating the WAG process performance in short and long cores as a function of gas-oil miscibility and brine composition. This performance evaluation has been carried out by comparing oil recoveries between WAG injection and continuous gas injection (CGI). Miscible (2500 psi) and immiscible (500 psi) floods were conducted using Berea cores, n-Decane and two different brines, namely the commonly used …

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Marginal Income Tax Rates And The U.K. Economy: Three Essays, Eon-Seon Rym Jan 2003

Marginal Income Tax Rates And The U.K. Economy: Three Essays, Eon-Seon Rym

LSU Doctoral Dissertations

This dissertation investigates the role of fiscal policy on economic activity by analyzing the response of major macroeconomic variables to innovations to the average marginal income tax rate (AMTR) measures in the U.K. by employing vector autoregressive (VAR) models. We identify these innovations by making certain assumptions about fiscal policy and then analyze the dynamic behavior of output, the interest rate, the exchange rate, and the trade balance in response to an increase in AMTR by studying the impulse response functions (IRFs) derived from the VAR and structural VAR (SVAR) approaches. The first essay focuses upon the calculation of the …

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Diffusion Of A Rodlike Virus In Complex Solutions, Randall Charles Cush Jan 2003

Diffusion Of A Rodlike Virus In Complex Solutions, Randall Charles Cush

LSU Doctoral Dissertations

Entanglement phenomena in concentrated polymer solutions remain an interesting and challenging problem. It is still unclear how entanglement onset affects polymer chain motion at small distance scales. One way to study such motion is to follow the diffusion of a probe particle while increasing the concentration of the polymer. Many such studies have been done using probes ranging from linear and star polymers to various colloidal particles; however, relatively few studies have used rodlike probes. Rodlike probes are potentially more interesting due to the added information that may be gained by following rotational as well as translational diffusion. The anisotropic …

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Constraint Preserving Boundary Conditions For The Linearized Einstein Equations, Gioel Calabrese Jan 2003

Constraint Preserving Boundary Conditions For The Linearized Einstein Equations, Gioel Calabrese

LSU Doctoral Dissertations

The successful construction of long time convergent finite difference schemes approximating highly gravitating systems in general relativity remains an elusive task. The presence of constraints and the introduction of artificial time-like boundaries contribute significantly to the difficulty of this problem. Whereas in the absence of boundaries the Bianchi identities ensure that the constraints vanish during evolution provided that they are satisfied initially, this is no longer true when time-like boundaries are introduced. In this work we consider the linearization around the Minkowski space-time in Cartesian coordinates of the generalized Einstein-Christoffel system and analyze different kinds of boundary conditions that are …

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Reducing Phosphorus Runoff Using Poultry Litter Derived From Phytase-Amended Diets, Anserd Julius Foster Jan 2003

Reducing Phosphorus Runoff Using Poultry Litter Derived From Phytase-Amended Diets, Anserd Julius Foster

LSU Master's Theses

Surface-applied poultry litter generated using a phytase-amended diet may release less phosphorus (P) to runoff water than does litter from a conventional diet. The release of soluble reactive (SRP) and total dissolved P (TDP) from litter generated under conventional and phytase-amended diets was examined in three studies: 1) batch desorption, 2) flow-through cell, and 3) field micro-plot. In Study 1, samples of litter (10 from conventional, C, and 20 from phytase-amended, A, diets) were extracted with water at litter: water ratios from 1:5 to 1:200. Phosphorus in A litter was significantly less at the 1:10 extraction ratio; however, there was …

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Characterization Of Native And Bypass Human Coronary Artery Plaque Deposits From The Same Heart: Investigation Of The Chemical Form Of Calcium In Human Coronary Artery Plaque Deposits, Serigne Thiam Jan 2003

Characterization Of Native And Bypass Human Coronary Artery Plaque Deposits From The Same Heart: Investigation Of The Chemical Form Of Calcium In Human Coronary Artery Plaque Deposits, Serigne Thiam

LSU Doctoral Dissertations

Gradual deposits of lipids, proteins, and calcium on the coronary arterial walls cause atherosclerosis, leading to blockage of the blood flow and possible heart attack. Despite many studies, the mechanism underlying these processes remains unclear. In this research, differences between native and bypass plaque deposits from the same heart were examined. In addition, the crystalline and the amorphous plaques within these native and bypass vessels were characterized. The techniques used to characterize the deposits included inductively coupled plasma mass spectrometry (ICPMS), solid-state nuclear magnetic resonance (NMR), high performance liquid chromatography (HPLC), etc. The results from the ICPMS technique showed that …

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Effects Of Selective Herbicide Application On Vegetation And Invertebrates For Northern Bobwhite, And Small Mammal Communities Within Managed Pine Forests, Judy Diane James Jones Jan 2003

Effects Of Selective Herbicide Application On Vegetation And Invertebrates For Northern Bobwhite, And Small Mammal Communities Within Managed Pine Forests, Judy Diane James Jones

LSU Master's Theses

Decline of northern bobwhite (Colinus virginianus) populations during the past 30 years in southern portions of their range has increased efforts to improve habitat quality by integration of wildlife and forest management. Prescribed burns and herbicides have potential to benefit bobwhites, vegetation, invertebrates, and small mammal communities in pine-dominated systems. This study was conducted at 700-hectare Louisiana State University Idlewild Research Station of LSU's Agricultural Center in East Feliciana Parish. The experiment was conducted on 3, 10.12-hectare, 75 to 85 year-old, over-mature, uneven-aged pine stands on hilltops and sloping terrain. Experimental design included vegetation, invertebrate, and small mammal response to …

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The Rapid Template Fabrication Process For Producing A Liga Heat Exchanger Bonded To A Mechanical Seal, Jason Patrick Tuma Jan 2003

The Rapid Template Fabrication Process For Producing A Liga Heat Exchanger Bonded To A Mechanical Seal, Jason Patrick Tuma

LSU Master's Theses

Mechanical seals are widely used in the chemical processing, aerospace, and automotive, industries. When a mechanical seal fails, considerable cost is typically involved in replacing the seal. Most seal failures are a result of high temperatures generated by frictional heating. Effectively removing the heat generated would significantly increase the mechanical seal’s work life and lead to significant monetary savings. One method of removing the heat generated is bonding an effective LIGA micro heat exchanger to the mechanical seal and forcing coolant through the heat exchanger. Previous work on this subject revealed promising results, especially for micro heat exchangers with microstructures …

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Alternative Language Sample Analyses For The Assessment Of Low-Income African American Children, Christy Gayle Wynn Jan 2003

Alternative Language Sample Analyses For The Assessment Of Low-Income African American Children, Christy Gayle Wynn

LSU Master's Theses

The purpose of this study was to examine the clinical utility of three language sample analyses when working with low-income, African American (AA) children. Eighteen normally developing and three at-risk AA three-year-old preschoolers participated in the study. Language samples were elicited from each child during a 15-20 minute play interaction. Three language sample analyses, contrastive analysis, average sentence length, and complex syntax use, were completed on each language sample. Also coded was each child’s use of nonmainstream African American English (AAE) patterns. Only the contrastive analysis generated reliable differences between the at-risk children and the normally developing children. Other group …

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An Integrated Approach To Judicial Decision Making: The Death Penalty In South Africa, Stephenie E. Franks Jan 2003

An Integrated Approach To Judicial Decision Making: The Death Penalty In South Africa, Stephenie E. Franks

LSU Master's Theses

Existing judicial research has firmly established the role of the law and the courts in the political system of the United States. Yet very little systematic empirical research has been conducted to fully explore the extent to which theories of judicial behavior based upon the American judicial system are applicable to other legal systems. As a result, these theories lack generalizability and, moreover, have failed to determine if the U.S. judiciary is comparable to other court systems or simply an anomaly within a broader comparative framework. Given this void within the existing literature, this study extends several theories of judicial …

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The Role Of Killer Joe In Tracy Letts' Killer Joe: A Production Thesis In Acting, Christopher C. Cariker Jan 2003

The Role Of Killer Joe In Tracy Letts' Killer Joe: A Production Thesis In Acting, Christopher C. Cariker

LSU Master's Theses

This thesis covers the experience of Christopher C. Cariker in his portrayal of the character Killer Joe Cooper in the play Killer Joe. It contains a character analysis, a daily record of the rehearsal process, an interview with the actor who played the original Killer Joe, Paul Dillon, a breakdown of the fight at the end of the show, acknowledgments, and thoughts/conclusions on the lessons learned throughout the experience of doing the play.

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Genome Analysis: Mutation Analysis Using Near Infrared Laser-Induced Fluorescence (Nir-Lif) And Single Molecule Detection In Microfluidic Devices, Musundi Ben Wabuyele Jan 2003

Genome Analysis: Mutation Analysis Using Near Infrared Laser-Induced Fluorescence (Nir-Lif) And Single Molecule Detection In Microfluidic Devices, Musundi Ben Wabuyele

LSU Doctoral Dissertations

A number of genotyping methods have been developed for mutation analysis, each of which has its own unique advantage. DNA amplification via polymerase chain reaction (PCR) provides an unlimited supply of material for subsequent genetic analysis even in case where only a single copy of the DNA molecule is present in the sample. Research presented in this dissertation first examines the efficiency of in vitro amplification of single copy DNA with subsequent sequencing analysis of PCR product. The PCR products (amplicons) were investigated for possible alteration, distortions or mutations due to the amplification process. The sequencing data for single copy …

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Large Eddy Simulations Of Complex Turbulent Flows, Mayank Tyagi Jan 2003

Large Eddy Simulations Of Complex Turbulent Flows, Mayank Tyagi

LSU Doctoral Dissertations

In this dissertation a solution methodology for complex turbulent flows of industrial interests is developed using a combination of Large Eddy Simulation (LES) and Immersed Boundary Method (IBM) concepts. LES is an intermediate approach to turbulence simulation in which the onus of modeling of “universal” small scales is appropriately transferred to the resolution of “problem-dependent” large scales or eddies. IBM combines the efficiency inherent in using a fixed Cartesian grid to compute the fluid motion, along with the ease of tracking the immersed boundary at a set of moving Lagrangian points. Numerical code developed for this dissertation solves unsteady, filtered …

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The Relationship Between Selected Housing And Demographic Charateristics And Employment Status Among Rural, Low-Income Families, Ann Allgood Berry Jan 2003

The Relationship Between Selected Housing And Demographic Charateristics And Employment Status Among Rural, Low-Income Families, Ann Allgood Berry

LSU Doctoral Dissertations

This study was a secondary analysis of wave one data of the Rural Families Speak project, a multi-state longitudinal Agricultural Experiment Station project that focused on assessing changes in the well-being and functioning of rural low-income families in the context of welfare reform. Quantitative analysis was conducted to determine the housing situations of the families and the relationships of these factors with the family economic and cognitive well-being and employment circumstances of study participants. Discriminant analysis was used to develop a model to predict the employment circumstances (employed, not employed) of the participants. Housing costs usually take the first and …

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"You Stupid, Lazy Kid": Perceptions Of Verbal Aggressiveness In Older Adults, Jon M. Croghan Jan 2003

"You Stupid, Lazy Kid": Perceptions Of Verbal Aggressiveness In Older Adults, Jon M. Croghan

LSU Master's Theses

Young adults' stereotypes of older adults has been well-documented in communication literature, however, there has been a lack of research on the impact of message strategy on intergenerational interactions. The purpose of this study was to examine the relationship among three factors that previous research suggests should influence the activation of stereotypes toward a target: age, relational level, and message strategy. This study examines the role that message strategy, in this case, verbal aggressiveness, plays in activating young adults' (n = 186) negative stereotypes of older adults. The young adults' self-reported levels of trait verbal aggressiveness was positively correlated with …

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Group Theoretical Approach To Pairing And Non-Linear Phenomena In Atomic Nuclei, Kristina D. Launey Jan 2003

Group Theoretical Approach To Pairing And Non-Linear Phenomena In Atomic Nuclei, Kristina D. Launey

LSU Doctoral Dissertations

The symplectic sp(4) algebra provides a natural framework for studying proton-neutron (pn) and like-nucleon pairing correlations as well as higher-J pn interactions in nuclei when protons and neutrons occupy the same shell. While these correlations manifest themselves most clearly in the binding energies of 0+ ground states, they also have a large effect on the spectra of excited isobaric analog 0+ states. With a view towards nuclear structure applications, a fermion realization of sp(4) is explored and its q-deformed extension, sp(4)q, is constructed for single and multiple shells. The su(2)(q) substructures that enter are associated with isospin symmetry and with …

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The Dual Paths Of A Political Movement: Convergence And Divergence In Contemporary Conservative Public Address, Lyman Davis Hunt Jan 2003

The Dual Paths Of A Political Movement: Convergence And Divergence In Contemporary Conservative Public Address, Lyman Davis Hunt

LSU Doctoral Dissertations

This study examines the rhetorical choices made in public addresses by members of the contemporary conservative movement in the United States during the 1990s. The contemporary conservative movement in this instance is defined as a post World War II phenomenon. Specifically, it is argued that the popular notion of a unified conservative ascendence in America is but an illusion. Rather, two distinct tribes of conservatives, the economic and the traditional conservative, participate in a rhetorical homology that serves to hide significant ontological differences beneath the dialectical God terms freedom and order. Additionally, the charismatic nature of the term freedom authorizes …

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A Stellar Parameter Calibration Of Iue Data For The Determination Of The Present Day Mass Function Of High Mass Stars, Kenneth Thomas Taylor Jan 2003

A Stellar Parameter Calibration Of Iue Data For The Determination Of The Present Day Mass Function Of High Mass Stars, Kenneth Thomas Taylor

LSU Master's Theses

A study of stellar atmosphere models and the photometric quantity R is presented here, with R being the ratio of the integrated de-reddened fluxes from the two wavelength regions of the International Ultraviolet Explorer (IUE) satellite cameras. The effective temperatures and surface gravities of the stellar atmospheres were calibrated against R and absolute magnitude, using stellar evolution tracks from the literature, and applied to over 156 LMC stars whose masses and mass function are then derived from the results. The results show that the effective temperatures and surface gravities of stars derived from R and absolute magnitude correlate well with …

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A Study Of Dropout Characteristics And School-Level Effects On Dropout Prevention, Mindy L. Crain-Dorough Jan 2003

A Study Of Dropout Characteristics And School-Level Effects On Dropout Prevention, Mindy L. Crain-Dorough

LSU Doctoral Dissertations

This sequential, three-phase study used quantitative analyses to examine the characteristics of student dropouts and the characteristics of schools successful and unsuccessful in mediating dropouts. Narrative profiles were created to describe types of students and types of dropouts. Phase I consisted of three parts, each using the student as the unit of analysis. Part One examined the profile of all Louisiana dropouts. Part Two involved the creation of clusters of dropouts and non-dropouts combined. Part Three focused on the creation of dropout clusters. In Phase II, the percents of potential dropouts were calculated for 301 schools using the dropout characteristics …

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Social Sector Participatory Development In Honduras: A Process Across Institutions, Culturesval And Continents, Denese Ashbaugh Vlosky Jan 2003

Social Sector Participatory Development In Honduras: A Process Across Institutions, Culturesval And Continents, Denese Ashbaugh Vlosky

LSU Doctoral Dissertations

This research was conducted to determine whether our participatory process of curriculum development for vocational technical schools in Honduras was successful. This study analyzed program documents and correspondence to answer two questions: a) How did individual stakeholders perceive and negotiate the participatory process? and b) What factors --individual and environmental-- promoted and impeded the participatory process of development in this project? Participatory development concepts applied to Human Ecology Theory guided this research. Qualitative methodologies were utilized to develop the curriculum—Phenomenology-- and to evaluate the process of development—Grounded Theory and Matrix Analysis. An analysis of individual counterpart contacts revealed that stakeholder …

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