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LSU New Orleans Theses and Dissertations

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Cyclodextrin Assisted Enantiomeric Recognition Of Amino Acid Imides And Toward Synthesis Of Dolabellane Diterpenoid B, Pareshkumar Patel Aug 2005

Cyclodextrin Assisted Enantiomeric Recognition Of Amino Acid Imides And Toward Synthesis Of Dolabellane Diterpenoid B, Pareshkumar Patel

LSU New Orleans Theses and Dissertations

There is a strong market demand for enantiomerically pure drugs. One solution to this problem is to develop a simple methodology for transferring synthetically designed racemic drugs into optically pure ones. Many synthetic drugs are by nature amides, therefore, amino acid based models for transformation of racemates into optically pure compounds were selected for this study. Formation of self-assembly molecular aggregates of properly modified amino acids was observed with and without the presence of cyclodextrins. Cyclodextrin assisted formation of polymer-like self-assemblies and enantiomeric resolution of these amino acids were studied using 1D and 2D NMR spectroscopy, EleacroSpray Ionization Mass Spectroscopy …


New Ruddlesden-Popper Perovskites Obtained By Topochemical Methods, Doinita Neiner Aug 2005

New Ruddlesden-Popper Perovskites Obtained By Topochemical Methods, Doinita Neiner

LSU New Orleans Theses and Dissertations

Topotactic routes have been used to produce new materials with tunable electronic and magnetic properties. The host materials were the single and triple layered Ruddlesden-Popper compounds, NaLnTiO4 (Ln = La and Gd) and A2La2Ti3O10 (A = Li and K). These compounds consist of [LnTiO4]- and [La2Ti3O10]2-, respectively, perovskite layers interleaved with two alkali metal ion strata. The topotactic routes used in this research were ion exchange and intercalation. Ion exchange was used to replace the cations in the interlayer space with a cationic unit: vanadyl or the transition metal ion, nickel. This ion exchange route opens the structure to further …


Evaluation Of An Electro-Disinfection Technology As An Alternative To Chlorination Of Municipal Wastewater Effluents, Maria Elena Pulido Aug 2005

Evaluation Of An Electro-Disinfection Technology As An Alternative To Chlorination Of Municipal Wastewater Effluents, Maria Elena Pulido

LSU New Orleans Theses and Dissertations

This research evaluated and demonstrated the disinfection efficiency of an electrochemical system for total coliform removal from wastewater effluents after secondary treatment. Four bench scale batch electrochemical cells were assembled and operated in the laboratory: the first electro-disinfection reactor was set with aluminum electrodes, the second with standard 316 stainless steel electrodes, the third one with titanium electrodes, and the fourth one with a standard 316 stainless steel cathode and a titanium anode. During the electro-disinfection process the water sample was placed on the reactor/disinfector to which direct current (DC) was charged. The results showed that total coliform counts in …


Neil Gaiman's American Gods: An Outsider's Critique Of American Culture, Mark Hill Aug 2005

Neil Gaiman's American Gods: An Outsider's Critique Of American Culture, Mark Hill

LSU New Orleans Theses and Dissertations

In 2001, Neil Gaiman published American Gods, a novel of American life and mythology. As a British author living in the United States, Gaiman has a powerful vantage point from which to critique American culture, landscape, and ideology. Rich with re-invented deities, legends, mythic creatures, and folk heroes cast in a decidedly American mold, American Gods examines the American character, evaluating the myths and beliefs of the culture from the vantage point of an outsider. By examining the character's allegiance to particular cultural legacies (Wednesday as the American con artist, Shadow as the cowboy), I intend to assess this outsider's …


Attention And Memory Dysfunction In Pain Patients While Controlling For Effort On The California Verbal Learning Test-11, Kelly Curtis Aug 2005

Attention And Memory Dysfunction In Pain Patients While Controlling For Effort On The California Verbal Learning Test-11, Kelly Curtis

LSU New Orleans Theses and Dissertations

Previous studies have reported that deficits in attention are often a common complaint in individuals suffering from pain and attentional impairment in patients with pain has been demonstrated on a variety of neuropsychological measures. Much of the research to-date, however, has not taken into account extraneous factors that may contribute to observed cognitive deficits. Using the California Verbal Learning Test - II, attention and memory performance was examined in two clinical populations (pain and mild traumatic brain injury) while controlling for effort using the Word Memory Test. Controlling for effort led to different explanations of poor performance on attention variables. …


Comorbid Anxiety And Depression: Do They Cluster As Distinct Groups In Youth?, Melinda Cannon Aug 2005

Comorbid Anxiety And Depression: Do They Cluster As Distinct Groups In Youth?, Melinda Cannon

LSU New Orleans Theses and Dissertations

One of the most common pairs of co-occurring psychological disorders in children and adolescents is anxiety and depression. This high frequency of co-occurrence has led to research examining the structure of anxiety and depression, specifically the shared and unique aspects of these syndromes. The tripartite model accounts for the overlap between the disorders by suggesting that they are related because they share the feature of negative affect or general psychological distress. The model further proposes that they can be differentiated by their unique features of physiological hyperarousal (anxiety) and low positive affect (depression). Factor analytic research has shown that anxious …


Water Quality Study Of Southshore Of Lake Pontchartrain, Maria Carolina Martinez Fernandez Aug 2005

Water Quality Study Of Southshore Of Lake Pontchartrain, Maria Carolina Martinez Fernandez

LSU New Orleans Theses and Dissertations

In 2004, a field sampling study was initiated along the southern shoreline area of Lake Pontchartrain in Jefferson Parish, specifically, around Bonnabel Canal (Pumping Station No.1) to identify the effect of urban stormwater discharges on Lake Pontchartrain and to simulate the plume patterns from the Bonnabel Canal. Sixteen sampling stations were selected along the south shore of Lake Pontchartrain. Under dry weather conditions Fecal Coliform values exceeded the limit of 200 MPN/100mL at 3 of 16 stations. Fecal Coliform counts were found to be "wet" weather-dependent and unsuitable for primary contact recreation for at least three to four days following …


Two Essays In Business Cycle Theory, Nazneen Ahmad Aug 2005

Two Essays In Business Cycle Theory, Nazneen Ahmad

LSU New Orleans Theses and Dissertations

This dissertation studies two interesting business cycle issues. The first issue concerns the effectiveness of tax policies in stimulating an economic recovery. The second issue concerns the costs of business cycle fluctuations to an investor who chooses to invest in risky assets. The first essay evaluates the effectiveness of the "end of double tax" policy in stimulating an economic recovery by analyzing the transitional dynamics of the economy's aggregates toward the steady states. The effectiveness of this policy is compared with two alternative policies that reduce corporate income or personal income taxes. Although all of these tax policies are found …


Sex And Virtual Reality: Posture And Motion Sickness, Moira Flanagan Aug 2005

Sex And Virtual Reality: Posture And Motion Sickness, Moira Flanagan

LSU New Orleans Theses and Dissertations

It is well established that exposure to virtual motion environments (VME) can elicit postural instability (PI) in addition to motion sickness (MS). While research has found sex differences in motion sickness, the results of experimental studies are equivocal regarding these differences, and previous studies utilizing VME have failed to address the factor of sex differences in terms of hormonal fluctuations, which may also be instrumental in behavioral responses to VME, such as PI. The intent of this investigation was to determine whether exposure to VME, during various phases of the menstrual cycle (premenstrual, permenstrual, ovulation) would reveal sex differences in …


The Experience Of Wellness For Counselor Education Doctoral Students Who Are Mothers, Latoya Pierce Aug 2005

The Experience Of Wellness For Counselor Education Doctoral Students Who Are Mothers, Latoya Pierce

LSU New Orleans Theses and Dissertations

This is a phenomenological study on the experience of wellness of counselor education students who are mothers. The study used seven participants in two rounds of interviews and one focus group. Participants were of varying stages of motherhood and at different points in their doctoral journey. Findings included participants' views of motherhood and womanhood, sacrifices and rewards, counselor education program support, wellness, and dissonance of multiple roles. Findings were compared within and across cases using themes and categories. Suggestions for further research are made as well as implications for this population and counselor education.


Does The Stria Terminalis Carry Information Concerning Feeding And Body Weight Regulation From The Posterodorsal Amygdala To The Hypothalamus?, Bethany Layla Rollins Aug 2005

Does The Stria Terminalis Carry Information Concerning Feeding And Body Weight Regulation From The Posterodorsal Amygdala To The Hypothalamus?, Bethany Layla Rollins

LSU New Orleans Theses and Dissertations

Previous research has demonstrated body weight gain in rats after lesions to the posterodorsal amygdala. Likewise, a recent study also found increased body weight as a result of knife-cuts of the stria terminalis, just as it exits the amygdala. In the present study, these findings were extended and previous studies replicated by producing 1) lesions in the stria terminalis as it travels dorsally through the brain, 2) coronal knife-cuts anterior to the ventromedial hypothalamus, and 3) axon-sparing lesions of the posterodorsal amygdala using ibotenic acid. Both lesions of the dorsal stria terminalis and coronal knife-cuts anterior to the ventromedial hypothalamus …


Behavioral Aspects Of Retirement Savings: How Do 401(K) Plans Affect Household Asset Accumulation?, John Topoleski Aug 2005

Behavioral Aspects Of Retirement Savings: How Do 401(K) Plans Affect Household Asset Accumulation?, John Topoleski

LSU New Orleans Theses and Dissertations

The nature of employee retirement plans has changed dramatically over the past fifteen years as employers have been replacing traditional defined benefit retirement plans with defined contribution plans like the 401(k) plan. This dissertation is focused on the impact that 401(k) plan have on household asset accumulation. The first essay looks at how much asset accumulation can be attributed to 401(k) plans as opposed to other factors such as demographics and saver type characteristics. Overall, the conclusions are consistent with recent research that says these plans induce a reshuffling of assets rather than being funded through a reduction in consumption. …


Identification And Stabilization Of Problematic Silts, Bogdan Barbu May 2005

Identification And Stabilization Of Problematic Silts, Bogdan Barbu

LSU New Orleans Theses and Dissertations

Silty soils are a common occurrence and can exhibit low strengths, and minimal bearing capacity, causing widespread construction and performance problems. These soils are highly moisture-sensitive and their stability is greatly influenced by the degree of densification achieved during compaction. The strength and stiffness of silty-subgrade soils is also greatly reduced when moisture infiltrates the compacted soil during post construction period. This investigation concentrated on further developing the description of the pumping problem for soils with high silt content and the development of guidelines for stabilization of problematic silts. Using documented field experiences of the DOTD districts, the study presents …


Embedding Sensory Preferences Into Toys To Enhance Toy Play In Toddlers With Disabilities, Cynthia Dicarlo May 2005

Embedding Sensory Preferences Into Toys To Enhance Toy Play In Toddlers With Disabilities, Cynthia Dicarlo

LSU New Orleans Theses and Dissertations

Playing with toys as a means of environmental engagement has long been considered important in early child development (Messer, Rachford, McCarthy, & Yarrow, 1987; Wolery & Werts, 1994). However, children with highly significant disabilities often engage in toy play less frequently than their peers without disabilities (Blasco, Bailey, & Burchinal, 1993; Langley, 1985) and frequently need specialized support to promote toy play (Ivory & McCollum, 1999; Langley, 1985). Preference assessment technology was used to identify preferred sensory attributes. Those sensory attributes were embedded into a toy previously identified as nonpreferred based on selection and amount of toy play. Differences were …


Beliefs Of Board Certified Substance Abuse Counselors Regarding Selected Multiple Relationship Issues, Jennifer Kenney Hollander May 2005

Beliefs Of Board Certified Substance Abuse Counselors Regarding Selected Multiple Relationship Issues, Jennifer Kenney Hollander

LSU New Orleans Theses and Dissertations

The purpose of this study was to increase understanding of beliefs of substance abuse counselors regarding multiple relationships. The association between beliefs and the variables of educational level, recovery status, experience, and supervision were explored. Purposeful sampling and multiple criteria were used to select seven states of the 31 that responded to a request for information regarding licensure or certification in their state. Participants were chosen from the following seven states: Arizona, Illinois, Maine, Maryland (D.C.), Montana, North Carolina, and Wyoming. Twenty percent (20 %) of individuals from each of the seven states were selected to participate. Random sampling was …


The Determinants Of Success In Venture Capital Finance, James Bartkus May 2005

The Determinants Of Success In Venture Capital Finance, James Bartkus

LSU New Orleans Theses and Dissertations

The determinants of success in venture capital financing are explored in this manuscript. 1247 venture capital funds formed over a twenty-year time period are empirically analyzed with results that support theoretical research from extant finance and economics literature. Venture capitalists' choices of portfolio size, distance from portfolio firms, location, and to some extent, level of diversification in their investment portfolio, are all significant factors in explaining the success rates of venture capital funds. These results are robust even when controlling for other characteristics of venture funds and entrepreneurial firms, such as the stage of development and industry of the portfolio …


A Comparison Of Microlab Discussions Of Interpersonal Competencies And Corrective Feedback On Counselor Trainees' Defensiveness Levels, Christian Dean May 2005

A Comparison Of Microlab Discussions Of Interpersonal Competencies And Corrective Feedback On Counselor Trainees' Defensiveness Levels, Christian Dean

LSU New Orleans Theses and Dissertations

This study explored the comparison of microlab discussions of interpersonal competencies and corrective feedback on counselor trainees' defensiveness levels. Additionally, the effects of microlab discussions of interpersonal competencies or corrective feedback on counselor trainees' beliefs about their ability to communicate more clearly, receive corrective feedback with less difficulty, and act on corrective feedback receive more easily were explored. Participants in this study (N = 72) were counselor trainees enrolled in three different universities within the New Orleans metropolitan area. Participants completed the Tennessee Self-Concept Scale: Second Edition (TSCS: 2; Fitts & Warren, 1996) at least three weeks before taking part …


Student Perceptions Of The Defining Aspects Of A Mathematics Methods Course That Aided In The Development Of A Conceptual Understanding Of Mathematics, Patricia Edmiston May 2005

Student Perceptions Of The Defining Aspects Of A Mathematics Methods Course That Aided In The Development Of A Conceptual Understanding Of Mathematics, Patricia Edmiston

LSU New Orleans Theses and Dissertations

The purpose of this study was to ascertain pre-service teachers' perceptions of the defining aspects of a mathematics methods course that aided in the development of a conceptual understanding of mathematics. These perceptions emerge from the narratives of four pre-service teachers in a mid-size metropolitan university in the southeastern part of the United States. Grounded in the theory of constructivism this study focuses on the educational experiences of pre-service teachers, as reported by pre-service teachers, creating a portrait of their journey. These pre-service teachers' learning experiences were based on national standards with a constructivist instructional approach and included field experience …


Regression Analysis Of Dissolved Heavy Metals In Storm Water Runoff From Elevated Roadways, Ruben Erlacher May 2005

Regression Analysis Of Dissolved Heavy Metals In Storm Water Runoff From Elevated Roadways, Ruben Erlacher

LSU New Orleans Theses and Dissertations

This proposed research focused on the prediction and identification of dissolved heavy metals in storm water runoff from elevated roadways. Storm water runoff from highways transports a significant load of contaminants, especially heavy metals and particulate matter, to receiving waters. Heavy metals, either in dissolved or particulatebound phases, are unique in the fact that unlike organic compounds, they are not degraded in the environment. The objective of this research was to develop a mathematical model to relate dissolved heavy metal concentration to different measurable parameters which are easily available and routinely measurable for elevated roadways. The reliability of the developed …


Returning To School: Narratives Of High School Leavers And How The General Equivalency Diploma Affects Financial Stability And Educational Opportunities, Lauren Tarantino May 2005

Returning To School: Narratives Of High School Leavers And How The General Equivalency Diploma Affects Financial Stability And Educational Opportunities, Lauren Tarantino

LSU New Orleans Theses and Dissertations

Narrative analysis of high school leavers' individual backgrounds examines both positive and negative reasons that; students terminate their secondary education and experiences, and return to pursue a GED- General Equivalency Diploma. This analysis examines goals for the future of these students including extended education, career choices and family situations. The goals of this study are to determine why informants leave high school before graduation and to examine these reasons across racial, cultural and gender lines. This report analyzes why students returned to receive their GEDs and how they believe the receipt of the GED will affect their goals in regards …


Fabrication Of Three-Dimensionally Ordered Nanostructured Materials Through Colloidal Crystal Templating, Lianbin Xu May 2005

Fabrication Of Three-Dimensionally Ordered Nanostructured Materials Through Colloidal Crystal Templating, Lianbin Xu

LSU New Orleans Theses and Dissertations

The void spaces in colloidal crystals (opals, three-dimensional (3D) close-packed arrays of silica nanospheres) and their replicas are used as templates in the fabrication of new nanostructured materials. 3D ordered nanomeshes and nanosphere arrays are readily obtained by chemical and/or electrochemical methods. Using silica opal templates, metals or polymers are infiltrated into the interstices between the silica nanospheres. Subsequent dissolution of the opals with HF solution produces open 3D mesh structures. Metal (such as Ni, Co, Fe, Pd, Au, Ag, and Cu) and conductive polymer (such as polyaniline) meshes are obtained by electrochemical deposition approach, while the nonconductive polymer (such …


Modeling Shape Effects In Nano Magnetic Materials With Web Based Micromagnetics, Zhidong Zhao May 2005

Modeling Shape Effects In Nano Magnetic Materials With Web Based Micromagnetics, Zhidong Zhao

LSU New Orleans Theses and Dissertations

This research work focuses on the geometry and shape effects on submicron magnetic material. A web based micromagnetics program is written to model the hysteresis loop of nano magnetic samples with arbitrary geometry shapes and multiple magnetic materials. Three material samples have been modeled with this program along with nano magnets with a variety of geometric shapes. Shape anisotropy has been introduced to a permalloy ring by adding a cross-tie structure with various widths. The in-plane hysteresis loop and reversal behavior have no notable difference in direction parallel to the cross-tie, but greatly changed in perpendicular and diagonal directions. The …


Statistical Analysis Of Seasonal Precipitation For The Lake Pontchartrain Basin And Associated Watersheds, Suzanne Van Cooten May 2005

Statistical Analysis Of Seasonal Precipitation For The Lake Pontchartrain Basin And Associated Watersheds, Suzanne Van Cooten

LSU New Orleans Theses and Dissertations

To investigate seasonal patterns of precipitation, statistical analysis was performed on a dataset of daily rainfall observed at 63 south Louisiana stations from 1836 to 2002. Each station record was examined for data quality and continuity with special attention to time periods surrounding station relocation or equipment exchange. Mean Areal Precipitation (MAP) sheets were compiled for every month from 1836 to 2002 to document the daily rainfall across south Louisiana and neighboring portions of southern and coastal Mississippi. Using these MAP sheets, missing data was examined to see if a reasonable value could be substituted to extend the continuity of …


Cdse Quantum Dots And Luminescent/Magnetic Particles For Biological Applications, Desheng Wang May 2005

Cdse Quantum Dots And Luminescent/Magnetic Particles For Biological Applications, Desheng Wang

LSU New Orleans Theses and Dissertations

CdSe semiconductor nanocrystals (quantum dots--QDs) with diameters ranging between 1.5 and 8 nm exhibit strong, tunable luminescence [1-5]. They have been widely investigated for their size-dependent optoelectronic properties [6], and for their potential use in optical devices [7], biological labels [8] and sensors [9]. Luminescent quantum dots (QDs) show higher photostability and narrower emission peaks compared to organic fluorophores [8]. The objective of my project was to apply QDs magnetic/luminescent nanoparticle as biological labels in cells. Luminescent CdSe QDs emit bright visible light with high quantum yield and sharp emission peak. The CdSe QDs were capped with a ZnS layer. …


Oxidation Chemistry Of Some Early Transition-Metal Layered Perovskites, Karachie Ward May 2005

Oxidation Chemistry Of Some Early Transition-Metal Layered Perovskites, Karachie Ward

LSU New Orleans Theses and Dissertations

Early transition-metal oxyhalides, (MCl)LaNb2O7 (M = V, Cr) have been prepared by ion exchange of layered perovskite hosts, ALaNb2O7 (A = Li, Rb), with anhydrous metal halides, MCl2. These compounds contain low-valent metals (M2+) that are receptive to oxidation. Thermogravimetric analysis (TGA) shows oxygen uptake at low temperatures (< 500 °C) and subsequent X-ray powder diffraction indicates that the host structure is maintained upon oxidation. Also through EDAX of the starting material and products, it has been found that there is a loss of chlorine upon oxidation. Thorough characterization of oxidation products will be presented and the ramifications of this chemistry on low-temperature topotactic formation of metal-oxide layers within perovskite hosts will be discussed.


Environmental Remediation With Fenton Reagents And Synthesis Of A Novel Halide Fluorescence Sensor, Guoxiang Xu May 2005

Environmental Remediation With Fenton Reagents And Synthesis Of A Novel Halide Fluorescence Sensor, Guoxiang Xu

LSU New Orleans Theses and Dissertations

Suwannee River fulvic acid (SRFA) and humic acid (SRHA) were used as dissolved organic matter (DOM) and were applied to probe the effect of DOM. Addition of DOM resulted in decreased first order rate constants for all species selected. The inhibition became more significant as the hydrophobicity of the species increased. The decrease could not be simply attributed to the binding of hydrophobic species to DOM. This can be explained by the physical isolation of iron (II), which binds to hydrophilic sites of DOM and is the hydroxyl radical generation site, from hydrophobic pollutants which bind to hydrophobic sites of …


Urban Landscape Change In New Orleans, La: The Case Of The Lost Neighborhood Of Louis Armstrong, Willard Fields May 2005

Urban Landscape Change In New Orleans, La: The Case Of The Lost Neighborhood Of Louis Armstrong, Willard Fields

LSU New Orleans Theses and Dissertations

While Jane Jacobs' frontal assault on "modern planning" is now over forty years old, communities around the United States are still struggling to deal with the legacy of modernist interventions that dramatically altered the historic urban form and culture of their downtowns. In the worst cases, whole zones were transformed into nearly unusable space. Reintegrating these lost spaces into the urban fabric is one of the most significant challenges of urban planners and designers today. Despite the ubiquity of lost spaces in American cities, comparatively little research has been done on the specific historic urban forms that were altered. This …


Submit: A Narrative Film Production, Timothy Theuer May 2005

Submit: A Narrative Film Production, Timothy Theuer

LSU New Orleans Theses and Dissertations

This thesis documents the production of a seventeen-minute narrative film production, Submit. It includes chapters outlining the development, pre-production, production and post-production stages. In addition, the script, shot lists, equipment request form, budget, and camera reports are included. Written, produced, and directed by the author, Submit is the story about a man's desire to right his life by winning back a former love. The story involves deceit and plays with notions of identity and place. The film was shot in seven days throughout the City of New Orleans. The goal of this project was to create a short piece that …


Auto Biography: A Daughter's Story Told In Cars, Lynda Routledge Stephenson May 2005

Auto Biography: A Daughter's Story Told In Cars, Lynda Routledge Stephenson

LSU New Orleans Theses and Dissertations

Auto Biography is a creative nonfiction memoir: A daughter, forced to move her unlovable, ever-combustible, wheelchairbound mother cross-country in an RV, attempts to come to terms with her via the automobiles of their lives. The story explores: 1) the universal dilemma of caring for aged parents––its stress, its pain, its sacrifice, and its dark humor; 2) memory––the "peeling back" narrative style working in the same layer upon layer way of memory, its non-linearity creating not so much a one-piece narrative but essay snapshots forming a family photo album view of this thing we call memory and this thing we call …


The Public Market System Of New Orleans: Food Deserts, Food Security, And Food Politics, Nicole Taylor May 2005

The Public Market System Of New Orleans: Food Deserts, Food Security, And Food Politics, Nicole Taylor

LSU New Orleans Theses and Dissertations

This study evaluates the public market system in New Orleans, Louisiana by focusing on the history of New Orleans public markets, the privatization of food, and the "greening" of the city with the creation of the Crescent City Farmers Market and other grass roots food activist efforts. Using qualitative methods, ethnographic fieldwork, participant observation and interviewing, issues of food access, food security, food production, food locality, quality, and affordability in New Orleans are explored. The history of public markets in New Orleans and the patterns of market proliferation, regulation, and privatization are significant in the landscape of cultural self-identification, community …