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Estimation Of Oceanic Surface Velocity Vector Fields Using Multiresolution., Guillermo Tonsmann
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 …
William Albright's Sonata For Alto Saxophone And Piano: Analytical Insights And Performance Considerations., Brian Russell Utley
William Albright's Sonata For Alto Saxophone And Piano: Analytical Insights And Performance Considerations., Brian Russell Utley
LSU Historical Dissertations and Theses
William Albright's Sonata for Alto Saxophone and Piano amply demonstrates the stylistic eclecticism for which he is famous. The four movements exhibit distinct characters and musical languages, including references to compositional practices of the past, as in the two-part invention of the first movement and the follia of the second, and allusions to American popular music, as in the bebop sections of the finale. This polystylistic compositional approach also invites a variety of analytical techniques, including investigation into form, motivic development, register, texture, and pitch usage. This study, the first of its kind on Albright's sonata, examines these characteristics in …
Metal Partitioning Among Tissues And Exoskeleton Of Palaemonetes Pugio And Its Role In Depuration And Trophic Transfer., Kristen Annette Keteles
Metal Partitioning Among Tissues And Exoskeleton Of Palaemonetes Pugio And Its Role In Depuration And Trophic Transfer., Kristen Annette Keteles
LSU Historical Dissertations and Theses
The objective of this dissertation was to determine the partitioning of Cu, Zn and Cd between tissues and exoskeleton of the grass shrimp, Palaemonetes pugio Holthius, and to examine the consequences of this association. The role of the exoskeleton in the potential for depuration of metals through ecdysis was examined first. The portion eliminated with the exuviae varied for each metal; 11% Cu, 18% Zn, and 26% Cd of the total intermolt body burden was associated with exuviae. Some fraction of Cu and Cd in the exoskeleton was likely reabsorbed before molting but excess Zn was likely depurated through excretion. …
Synthesis Of Water-Soluble Quaternary Ammonium Chitosan Derivatives And Their Potential Applications As Biocides., Dewayne Logan
Synthesis Of Water-Soluble Quaternary Ammonium Chitosan Derivatives And Their Potential Applications As Biocides., Dewayne Logan
LSU Historical Dissertations and Theses
Chitosan is a polysaccharide obtained by deacetylating chitin, the major constituent of the exoskeleton of crustaceans. The driving force in the development of new applications for chitosan is not only is it naturally abundant, but it is non-toxic and biodegradable. It can be used as a chelating agent, coagulating agent, and flocculant. It has also been used to reduce blood cholesterol and as a dietary supplement. Chitosan derivatives have been synthesized for cosmetic applications and have been reported to exhibit antimicrobial activity. Further investigation of this potential activity is warranted due to increased antibiotic resistance. The focus of this work …
Navigating Knowing/Complicating Truth: African American Learners Experiencing Oral History As Real Education., Lavada Taylor Brandon
Navigating Knowing/Complicating Truth: African American Learners Experiencing Oral History As Real Education., Lavada Taylor Brandon
LSU Historical Dissertations and Theses
Dominant explanations for why urban African American learners dropout is that these students are "at-risk" (Swanson, 1991; Sartain,1989; Levine, 1988; Macchiarola, 1988). Such explanations blame the victim while exonerating the role schooling plays in shaping students' "at-risk" conditions (Woodson, 1933/1998; Tatum, 1997; Freire, 1970/1997; Shujaa, 1994; Gordon, 1993). This research contests these explanations for why African American learners dropout by centering 10 African American students' voices to highlight the role curriculum plays at casting them at-risk. Consequently, this work shifts reproach from individual students' home environments to the larger structural dimensions of curricula (what we know) and instruction (how we …
Spatial Variability And Isotopic Studies Of The Prairie -Forest Transition Soil In Louisiana., Asfaw Bekele
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 …
The Influence Of An Active Postvention On The Length Of Time Elapsed Before Survivors Of Suicide Seek Treatment., Frank Ray Campbell
The Influence Of An Active Postvention On The Length Of Time Elapsed Before Survivors Of Suicide Seek Treatment., Frank Ray Campbell
LSU Historical Dissertations and Theses
Those who are significantly impacted by the death of someone to suicide are known as survivors of suicide. This study examined two groups of suicide survivors, one group received an active postvention model (APM), and the other group received no active postvention model. The study utilized both t-test and chi-square to compare the groups based on key demographic characteristics. The study compared model of postvention (active versus passive) for the time elapsed between the suicide and the survivors seeking treatment. The two groups studied were survivors who sought treatment at a well established metropolitan crisis intervention center in the southern …
Physiology And Lateralization Of Swallowing: A Comparison Between Young And Old Adults., Stephanie Kay Daniels
Physiology And Lateralization Of Swallowing: A Comparison Between Young And Old Adults., Stephanie Kay Daniels
LSU Historical Dissertations and Theses
Age-related changes in discrete swallows have been well researched, but few studies have investigated sequential swallowing with little emphasis on age-related changes. It is also unclear whether the cortical representation of swallowing is lateralized to one hemisphere or is bilaterally represented. As such, the aims of this research were to examine deglutitive biomechanics of sequential straw swallowing (Experiment I), and study swallowing lateralization using a dual task paradigm in healthy, young and old adults (Experiment II). Thirty-eight right-handed men (young = 20, old = 18) were studied. Experiment I: Videofluoroscopic swallow samples of two 10-second straw drinking trials were obtained. …
Professional Culture And Efficacy Correlates Of Organizational Effectiveness In Cooperative Extension Services., Rebecca Elaine White
Professional Culture And Efficacy Correlates Of Organizational Effectiveness In Cooperative Extension Services., Rebecca Elaine White
LSU Historical Dissertations and Theses
Several important lines of inquiry have been developed during the past fifty years to study the complex nature of educational organizations. In particular, theorists, researchers, and educational policy makers have become increasingly concerned about the effectiveness of educational institutions. Recently, significant research and policy maker attention has been focused on issues of effectiveness of higher education. The Cooperative Extension Services as ancillary outreach units of state land grant universities are no exception and the extant literature has been focused primarily on outcomes as organizational effectiveness measures. This study addresses the need to develop more comprehensive conceptual frameworks for studying perceived …
Performativity And Performance: Representing The Tattooed Body., Mindy Elaine Fenske
Performativity And Performance: Representing The Tattooed Body., Mindy Elaine Fenske
LSU Historical Dissertations and Theses
In this study I examine visual representations of tattooed bodies in three arenas of cultural production: tattoo conventions, advertising, and neo-tribal books. Through the methodological lens of genealogies of performance, I analyze these texts' construction of the tattooed body as classed, gendered, and exotic. I argue that contemporary representations of the tattooed body resist and reproduce discursive power regimes by surrogating prior cultural performances and representations of performance. I argue that contemporary visual representations of the tattooed body succeed in resisting discursive authority when they performatively cite multiple and transgressive authorities. I additionally indicate that the body in representation transgresses …
Teacher Efficacy, Administrator Efficacy, School Culture, And Leadership Density., Roy Wade Smith
Teacher Efficacy, Administrator Efficacy, School Culture, And Leadership Density., Roy Wade Smith
LSU Historical Dissertations and Theses
This study examined new means for conceptualizing leadership in schools from a non-centrist perspective. Specifically, leadership in schools was conceived of, and studied as, an organizational construct rather than a set of personal attributes associated with positional authority. This non-centrist view of leadership is termed leadership density (Sergiovanni, 1987; Ellett, 1996), and is metaphorically represented in the study by characteristics of a small jazz combo. The primary focus of the study was the development of a new conceptual model of leadership, grounded within the small jazz combo metaphor. In an attempt to understand leadership from this new perspective, linkages between …
The Across-Shelf Distribution Of Larval, Postlarval And Juvenile Fishes Collected At Oil And Gas Platforms And A Coastal Jetty Off Louisiana West Of The Mississippi River Delta., Frank Joseph Hernandez Jr
The Across-Shelf Distribution Of Larval, Postlarval And Juvenile Fishes Collected At Oil And Gas Platforms And A Coastal Jetty Off Louisiana West Of The Mississippi River Delta., Frank Joseph Hernandez Jr
LSU Historical Dissertations and Theses
A cross-shelf transect of three petroleum platforms and a coastal rock jetty (another hard-substrate, artificial habitat) in the northcentral Gulf were sampled to examine the role that oil and gas platforms (hard substrate habitat) may play in the early life history stages of reef-dependent and reef-associated fishes. The ichthyoplankton and juvenile fish assemblages were sampled at Green Canyon 18 (GC 18; 230 m depth, shelf slope); Grand Isle 94 (GI 94; 60 m depth, mid-shelf); and South Timbalier 54 (ST 54; 20 m depth, inner shelf) with passive plankton nets and light-traps and at a coastal rock jetty (Belle Pass; …
Effect Of Chromium, Dried Brewers Yeast, And Mannan Oligosaccharides On Sow Productivity And Growth Performance Of Weanling Pigs., Frederick Masson Lemieux Jr
Effect Of Chromium, Dried Brewers Yeast, And Mannan Oligosaccharides On Sow Productivity And Growth Performance Of Weanling Pigs., Frederick Masson Lemieux Jr
LSU Historical Dissertations and Theses
Five experiments were conducted to evaluate the effects of mannan oligosaccharides (Bio-Mos) on growth performance, carcass characteristics, and pork quality of pigs. The first two experiments evaluated 0.20 and 0.30% Bio-Mos. The data indicated that the 0.20% level of Bio-Mos was more effective, and this level was used in the remainder of the experiments. Interactive effects of Bio-Mos and excess dietary Zn were evaluated in Exp. 2 and 3 and Trial 2 of Exp. 4. In Trial 1 of Exp. 4, Bio-Mos was fed with and without an antibiotic. In addition to the weanling pig experiments, 0.30% Bio-Mos was fed …
Framing And Counterframing Of The Middle East Peace Process In The Arab -Israeli Press: A Comparative Analysis Of "Assafir" And "The Jerusalem Post"., Houda Hanna El-Koussa
Framing And Counterframing Of The Middle East Peace Process In The Arab -Israeli Press: A Comparative Analysis Of "Assafir" And "The Jerusalem Post"., Houda Hanna El-Koussa
LSU Historical Dissertations and Theses
The Arabs and Israelis have been negotiating peace for the past ten years; however, the conflict still ignites with no apparent hope for any near resolution. Understanding the rhetorical construction of the peace reality may help in managing this conflict. This study examines the symbolic construction of the peace process in the Arab and Israeli press. It comparatively studies how the Arab and Israeli press, through language choice, define peace, elucidate its implications, and judge actors and actions involved in the peace process. This study identifies the metaphors used and the dominant rival frames constructed in two conflicting newspapers, Assafir …
An Inquiry Into The Influence Of Taped Books On The Oral Reading Performance Of Struggling Third-Grade Readers., Dolores Doga Harris
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 …
English Immersion Program In Korea: Student Progress After Four Months Of Implementation., Jaiwon Jung
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 …
Essays On Semiparametric Estimation., Kang-Sun Lee
Essays On Semiparametric Estimation., Kang-Sun Lee
LSU Historical Dissertations and Theses
This dissertation is primary concerned on the study of semiparametric estimation approaches. In the respect of the usage of econometric analysis that is evaluating theoretical relationship, the semiparametric analysis is useful to get the flexibility of functional form. The kernel-type nonparametric methods are used for semiparametric approaches in this dissertation. The first essay focuses upon performance of various bandwidth selectors in the local linear regression method. The results indicate that the variable bandwidth selector is superior to constant bandwidth selector in the more skewed data set or complicated functional form. LSCV bandwidth selector fit well in the simple functional form. …
The Relationship Between Water Vapor And Hurricane Track Using The Goes-8 Satellite., Melvin Francis Martin Jr
The Relationship Between Water Vapor And Hurricane Track Using The Goes-8 Satellite., Melvin Francis Martin Jr
LSU Historical Dissertations and Theses
Hurricanes are one of nature's most destructive forces. Hurricane intensity, track, and speed of motion are possibly the most important features to forecast in order to reduce the risk to life and property. This research uses the Geostationary Operational Environmental Satellite (GOES) water vapor channel to investigate the relationship between water vapor and hurricane track. GOES 8 satellite data was collected at the Louisiana State University Earth Scan Laboratory for 30 Atlantic Basin tropical cyclones for the 1998, 1999, and 2000 hurricane seasons. GOES 8 water vapor channel radiance temperatures were smoothed and contoured at 1°Celsius intervals to display a …
Systematics Of Neotropical Satyrine Butterflies (Nymphalidae: Satyrinae: Euptychiina) Based On Larval Morphology And Dna Sequence Data And The Evolution Of Life History Traits., Debra Lynne Murray
Systematics Of Neotropical Satyrine Butterflies (Nymphalidae: Satyrinae: Euptychiina) Based On Larval Morphology And Dna Sequence Data And The Evolution Of Life History Traits., Debra Lynne Murray
LSU Historical Dissertations and Theses
Although satyrine butterflies (Lepidoptera: Nymphalidae: Satyrinae) are highly diverse and found worldwide in most terrestrial habitats, they have received little attention from systematists. This research focuses on one of the largest satyrine groups, the euptychiines, found from central United States to Argentina, with the greatest diversity in the Amazon. The subtribe Euptychiina has a troubled taxonomic history. Most genera were erected without diagnoses and placed within the subtribe without being examined. Before this project was initiated, little was known of their basic biology and morphology. Therefore, considerable attention was given to this area in my research. I describe the larvae …
Ways Of Incorporating Photographic Images In Learning And Assessing High School Biology: A Study Of Visual Perception And Visual Cognition., Brenda Chaumont Nixon
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 …
A Dynamic Econometric Model For The United States Rice Market., Sung Chul No
A Dynamic Econometric Model For The United States Rice Market., Sung Chul No
LSU Historical Dissertations and Theses
Over the past two decades, developments in time series analysis have brought new approaches for combining structural characteristics of market models with stochastic processes that better represent available data. One line of research is the works of Zellner and Palm, which is known as structural econometric and time series analysis (SEMTSA). The other approach is the structural vector autoregressive model (SVAR), which is an economic-theory enhancement to the standard VAR approach. Empirical evaluations of how well these approaches may work in explaining the dynamics of commodity markets are lacking. The current study provides an empirical evaluation of these two approaches …
Measurement Of Bottom Quark Production In Two -Photon Collisions., Sepehr Saremi
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.
Physicochemical, Functional And Spectroscopic Analysis Of Crawfish Chitin And Chitosan As Affected By Process Modification., Sandeep Kumar Rout
Physicochemical, Functional And Spectroscopic Analysis Of Crawfish Chitin And Chitosan As Affected By Process Modification., Sandeep Kumar Rout
LSU Historical Dissertations and Theses
Traditional isolation of chitin from crawfish shells involves three sequential steps: demineralization (DM, removing calcium carbonate/phosphate), deproteinization (DP), and decolorization (DC, removing mainly astaxanthin). The first two steps can be reversed (i.e., DMP or DPM). Chitin is converted to chitosan by deacetylation (DA). Isolation steps may be shortened, depending on intended applications of chitosan. The first study investigated effects of (1) reversing sequence and (2) eliminating DP and DC steps on physicochemical and functional properties of chitosan and conversion efficiency of chitin. Twelve different processes: DM, DP, DPM, DMP, DPMC, DMPC, DMA, DMCA, DPMA, DMPA, DPMCA, DMPCA were investigated. DA …
The Call From The Stranger On A Journey Home: Curriculum As Creative Transformation Of Selfhood., Hongyu Wang
The Call From The Stranger On A Journey Home: Curriculum As Creative Transformation Of Selfhood., Hongyu Wang
LSU Historical Dissertations and Theses
Both utilizing and problematizing the notions of stranger, home, journey, and self through cross-cultural inquiry, gender analysis, psychoanalysis, and autobiography, this study attempts to draw a new picture of the human self and a new vision of curriculum. It draws upon the works of three great thinkers: Michel Foucault, a French philosopher; Confucius, an ancient Chinese sage; and Julia Kristeva, a French psychoanalyst. Traveling through a contradictory yet generative space provided by the Foucaultian subject, the Confucian self, and the Kristevian subject, this study intends to address the issues of differences, connections, and creativity in depicting a new landscape of …
Self -Efficacy And Human Caring Correlates Of Child Welfare Caseworker Performance In The Juvenile Courts., Sue Duvall Steib
Self -Efficacy And Human Caring Correlates Of Child Welfare Caseworker Performance In The Juvenile Courts., Sue Duvall Steib
LSU Historical Dissertations and Theses
This study explored the relationship between personal characteristics of casework staff in a public child welfare agency and the way in which they work with the courts and legal system. A set of six measures was developed or adapted for this research to explore theoretical linkages between the personal psychological variables of self-efficacy and human caring, and the way in which caseworkers participate in the formulation of agency decisions concerning families and children as well as the way in which their performance is assessed by judges hearing child dependency matters. The research also addressed the reliability and construct validity of …
Crop Response And Weed Control With Glufosinate In Rice., David Yves Lanclos
Crop Response And Weed Control With Glufosinate In Rice., David Yves Lanclos
LSU Historical Dissertations and Theses
Studies were conducted to evaluate crop tolerance and yield of glufosinate-resistant rice lines treated with glufosinate throughout the season. In addition, studies were conducted on harvested seed treated with glufosinate at various growth stages to evaluate seed weights, germination, and seedling vigor. Weed control with glufosinate alone and in combination with other herbicides was evaluated. Red rice control with different glufosinate rates and timings under 5, 10, and 20 cm permanent flood depths was also evaluated. In the tolerance study, CPRS PB-13 injury was less than 10% for all timings and no differences in yield were detected when compared with …
Translating Exile In Panait Istrati's "Mes Departs", Samuel Beckett's "Fin De Partie" And Selected Poems By Paul Celan., Ina Alice Pfitzner
Translating Exile In Panait Istrati's "Mes Departs", Samuel Beckett's "Fin De Partie" And Selected Poems By Paul Celan., Ina Alice Pfitzner
LSU Historical Dissertations and Theses
Translation and exile are two phenomena that marked life in the twentieth century, especially in Europe, and have therefore left their traces in French literature as well. Translation from one language to another is a heightened form of the translation process inherent in any writing. Exile in a foreign country, linguistic exile, is an aggravated form of the exile every human being experiences at some point. Parting from Lucian Blaga's concept of "mioritic space," which is based on the Romanian myth of Mioritza, as well as Walter Benjamin's essay "Die Aufgabe des Ubersetzers" [The Task of the Translator], this study …
Cytopathology, Detection, And Identification Of Viruses Infecting Sweetpotato., Jeonggu Sim
Cytopathology, Detection, And Identification Of Viruses Infecting Sweetpotato., Jeonggu Sim
LSU Historical Dissertations and Theses
Studies with the transmission electron microscope were used to detect and attempt to identify viruses infecting sweetpotato (Ipomoea batatas ) and other Ipomoea species. Flexuous-rods, short curved-rods, and spherical virus-like particles were observed in cells of symptomatic plants. Also, various cytopathic changes such as crystals, vesicles, fibril structures, and cylindrical inclusions were observed. Some of these cytopathic changes were associated with specific viral groups such as genus Crinivirus and Potyvirus and therefore helpful in diagnosis. Some molecular and biological properties of an isolate of Sweetpotato chlorotic stunt virus from the sweetpotato cultivar White Bunch (SPCSV-WB) were determined. Two species of …
Optimization Of Agrobacterium-Mediated Genetic Transformation Of Soybean Using Glufosinate As A Selective Agent., Shaomian Yao
Optimization Of Agrobacterium-Mediated Genetic Transformation Of Soybean Using Glufosinate As A Selective Agent., Shaomian Yao
LSU Historical Dissertations and Theses
Soybean [Glycine max (L.) Merr] is one of the most important oil crops. Genetic transformation techniques can provide new tools for soybean improvement. The production of transgenic soybean has been limited. This research integrated a modified soybean regeneration system into a transformation protocol to optimize the production of transgenic soybean. Soybean hypocotyls and cotyledonary nodes were cultured on Gamborg B5 medium containing thidiazuron (TDZ). TDZ at 0.16 muM was found superior to other concentrations for inducing multiple shoot formation. Explants isolated from seedlings germinated on medium containing 6-benzyl-aminopurine (BAP) greater than 7 muM produced more multiple shoots than when on …
Post -Displacement Employment In A Rural Community: Why Can't Women And Oil Mix?, Linda Anderson Tobin
Post -Displacement Employment In A Rural Community: Why Can't Women And Oil Mix?, Linda Anderson Tobin
LSU Historical Dissertations and Theses
This is a study of post-displacement labor market experiences of workers in a rural southern community in which there is a significant presence of the oil and gas industry. Using a guided conversation format, I talked with 99 community members, including displaced workers, representatives of the oil and gas industry, community leaders, and social service agencies. These conversations were used to explore opportunities and constraints found within this community with labor market implications for those displaced. Conversations show that both individual and structural factors explain post-displacement employment of these (predominantly) females. Though an expanding oil and gas industry requires an …