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Is A Student's Conceptual Knowledge Affected By Their Vocabulary Instruction?, Daniel C. Cox Jan 2010

Is A Student's Conceptual Knowledge Affected By Their Vocabulary Instruction?, Daniel C. Cox

LSU Master's Theses

The following paper explores the possible relationship between the manner in which a student is taught vocabulary in a high school physics classroom and the ability of those students to correctly answer physics conceptual questions. Two high school physics classes taught by the same teacher (eight or nine students in one and seventeen in the other) received identical instruction throughout multiple units with the exception of vocabulary instruction. Differences were observed in the students’ ability to correctly answer conceptual questions in only one topic, heat. The students did not get better at answering a question concerning a phase change or …

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The Adoption Of Best Management Practices In The Louisiana Crawfish Industry, Narayan P. Nyaupane Jan 2010

The Adoption Of Best Management Practices In The Louisiana Crawfish Industry, Narayan P. Nyaupane

LSU Master's Theses

Agricultural production can have result in environmental deterioration in cases where proper management practices have not been implemented. Louisiana, one of the tropical states, has a significant agricultural base with more than 1,600 farmers raising crawfish. Large volumes of waste water containing environmental pollutants result significant environmental problem in the state. Voluntary adoption of a number of best management practices (BMPs) that are considered to be environmentally and economically beneficial is encouraged in Louisiana. The major objectives of this study are to investigate farmer adoption of 18 selected Natural Resources Conservation Service (NRCS) cost share eligible BMPs and the reasons …

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Laser-Assisted Zona Pellucida Hatching Of Frozen-Thawed In Vivo-Produced Bovine Embryos, Mindy Kaye Chiasson Jan 2010

Laser-Assisted Zona Pellucida Hatching Of Frozen-Thawed In Vivo-Produced Bovine Embryos, Mindy Kaye Chiasson

LSU Master's Theses

Incomplete zona hatching or failure of the zona to rupture compromises post-transfer embryo viability and conceptus development. Assisted hatching prior to the transfer of frozen-thawed bovine embryos has been proposed as a means to increase recipient pregnancy rates. The objective of this study was to determine if laser-assisted hatching would improve in vivo-produced frozen-thawed bovine embryo hatching and pregnancy rates. In Experiment I,II and III frozen direct-transfer embryos received either two a or three symmetrical rents at either 40% or 80% through the outer zona surface using the Hamilton Thorne XYClone® (Hamilton Thorne Biosciences) diode laser at 90% power with …

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Bioluminescence, Zachary Pfeifer Jan 2010

Bioluminescence, Zachary Pfeifer

LSU Master's Theses

The ability of certain animals to create natural light is called bioluminescence. This ability is found throughout the world in various biomes but is most common in the deep ocean, in layers of dark water that remain untouched by the sun’s rays. One way Bioluminescence attempts to convey light moving though the depths is by assigning bright passages to instruments that are easily heard over light accompanying textures or are sometimes featured in solos or duets. The soprano saxophone and vibraphone are the two most common examples of this. Bioluminescence is written in the tradition of an orchestral tone poem, …

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Investigating The Effectiveness Of Informal Science Education Through Quantitative And Qualitative Analysis: Ocean Commotion, Catherine Angela Sutera Jan 2010

Investigating The Effectiveness Of Informal Science Education Through Quantitative And Qualitative Analysis: Ocean Commotion, Catherine Angela Sutera

LSU Master's Theses

Informal science education serves as an important source for science education for both individuals and school groups. However, the effectiveness of school visits to informal science education events outside of either museums or science centers has received little investigation. This study explores the short-term effects of a hands-on learning experience on students’ attitude and content knowledge. Specifically, it investigates the impact of Ocean Commotion, a one-day event where exhibitors present information and hands-on demonstrations about marine environments and products, especially those important to Louisiana. Pre-tests were utilized to document students’ initial knowledge of and attitude toward wetlands and the ocean, …

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"Blessed Be The Critics Of Newspapers": Journalistic Criticism Of Journalism 1865-1930, Yasmine Tarek Dabbous Jan 2010

"Blessed Be The Critics Of Newspapers": Journalistic Criticism Of Journalism 1865-1930, Yasmine Tarek Dabbous

LSU Doctoral Dissertations

This study examined journalistic press criticism between 1865 and 1930. It sought to understand how the first modern journalists conceived of their profession in a period of great transitions. As the study revealed, journalists writing about journalism between 1865 and 1930 discussed recurring themes such as commercialization, sensationalism, advertising, and ethics. They expressed ambivalence toward the rise of big business in their field and the consequences it could have on the quality of the work. In the process, journalists also defined journalism as a profession providing a public service or as a business aiming solely for circulation and profit. Definitions …

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Functional Characterization Of A Zinc Finger Protein Aebp2, Hana Kim Jan 2010

Functional Characterization Of A Zinc Finger Protein Aebp2, Hana Kim

LSU Doctoral Dissertations

AEBP2 is a zinc finger protein that has been shown to interact with the mammalian Polycomb Repression Complex 2 (PRC2). I characterized this unknown protein and tested its potential targeting roles for the PRC2. AEBP2 is an evolutionarily well-conserved gene that is found in animals ranging from flying insects to mammals. The transcription of mammalian AEBP2 is driven by two alternative promoters and produces multiple transcripts that give rise to at least two isoforms of the protein. These isoforms show developmental stage-specific expression patterns: the larger adult-specific form (52 kDa) and the smaller embryo-specific form (31 kDa). The AEBP2 protein …

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Reliability And Validity Study Of The Motiviation For Fear (Motif) Survey, Marie S. Nebel-Schwalm Jan 2010

Reliability And Validity Study Of The Motiviation For Fear (Motif) Survey, Marie S. Nebel-Schwalm

LSU Doctoral Dissertations

The aim of this study was to determine psychometric properties of a newly created, 24-item functional measure of fear and anxiety for typically-developing adults (the Motivation for Fear; MOTIF). Participants initially included 1,277 college students ranging in age from 18-35. Participants were asked to complete the MOTIF, the Questions About Behavioral Function (QABF), the Sensation Seeking Scale- Form V, and the Depression Anxiety Stress Scales (DASS). Analyses were conducted on those scoring above a minimum threshold on a well-normed measure of anxiety (the DASS). An exploratory factory analysis, using scree plot and parallel analysis, as well as oblique rotation was …

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Reading Out Of Doors: How Nature Becomes Text And Vice-Versa, Richmond Minor Eustis Jan 2010

Reading Out Of Doors: How Nature Becomes Text And Vice-Versa, Richmond Minor Eustis

LSU Doctoral Dissertations

The tensions between city and country, the artificial and the natural, the real and the fake are at the heart of attempts to render nature in writing. In many such texts, nature—especially wilderness—is the realm of the real, authentic, and pure, while the city is the realm of the artificial and corrupt. This placement of value in nature, members of the critical theory camp tend to counter, is misguided. Any effort to render nature in text is by its “nature” artificial—far more about human values embedded in language itself than about some extra-textual world. With an approach derived from theorists …

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Study Of Host-Fungus Interactions Between Soybean And Phakopsora Pachyrhizi Using Proteomics, Sunjung Park Jan 2010

Study Of Host-Fungus Interactions Between Soybean And Phakopsora Pachyrhizi Using Proteomics, Sunjung Park

LSU Doctoral Dissertations

Asian soybean rust, caused by Phakopsora pachyrhizi, is an emerging disease in the continental U. S. and resistant commercial varieties have not been reported. In an effort to understand the interactions during rust infection of soybean, protein profile changes were examined over a 14-day period in soybean leaves of one susceptible commercial line (Pioneer 93M60) with or without soybean rust inoculation using proteomics in this study. Forty protein spots differentially expressed after rust inoculation were identified and fourteen of them were recovered and sequenced. These included proteins involved in plant defense, stress, metabolism, and other biological processes. During the time-course …

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Pliny's Defense Of Empire, Thomas Raymond Laehn Jan 2010

Pliny's Defense Of Empire, Thomas Raymond Laehn

LSU Doctoral Dissertations

Despite perennial interest in Pliny the Elder’s Natural History as a record of the prodigious, the quotidian, and the useful in Rome in the first century AD, for over half of a millennium Pliny has been considered little more than an inept compiler of facts and marvels intellectually incapable of formulating a cogent argument supported through the selective marshalling of his materials. It is my contention that Pliny’s encyclopedic text is in fact a first-rate work of political philosophy constituting an apology for Roman imperial expansion grounded in a sophisticated conception of man as the only being capable of passing …

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Predator-Prey Interaction In Estuarine Bivalves: Size Selection, Effects Of Salinity, And Indirect Interactions, Barry Richard Aronhime Jan 2010

Predator-Prey Interaction In Estuarine Bivalves: Size Selection, Effects Of Salinity, And Indirect Interactions, Barry Richard Aronhime

LSU Doctoral Dissertations

High stress environments can reduce species diversity. How such stress-induced reduction in predator diversity impacts prey survival is less well studied. Brackish waters in estuaries are stressful, species depauperate areas, but also prime oyster habitat in Louisiana. Surveys revealed reduced bivalve predator diversity at the low salinity (high stress) site. Exclosure experiments indicated highest prey mortality at the high salinity (low stress) site. Predator enclosures corroborated the field study results, with reduced consumption rates at the low salinity site for both stone crabs, Menippe adina and oyster drills Stramonita haemastoma, but not blue crabs, Callinectes sapidus. Blue crab mortality in …

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Modeling Thermal Phenomena And Searching For New Thermally Induced Monitor Signals In Large Sale Gravitational Wave Detectors, Rupal Shashikant Amin Jan 2010

Modeling Thermal Phenomena And Searching For New Thermally Induced Monitor Signals In Large Sale Gravitational Wave Detectors, Rupal Shashikant Amin

LSU Doctoral Dissertations

The Laser Interferometer Gravitational-wave Observatory (LIGO) array’s 4 km detectors have transitioned from an initial configuration (iLIGO) to an enhanced configuration (eLIGO) [1]. Both configurations relied on high circulating laser powers to achieve sensitivity goals between 150 Hz and 8 kHz. These power levels were sufficient to induce thermally driven focal affects in the primary optics. Since the detectors were designed to achieve maximum sensitivity when laser light was optimally coupled (mode matched) into the antenna, small deviations in focal parameters influenced performance. A laser based thermal compensation system (TCS) was installed for use in both configurations to counteract excessive …

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Sorption Mechanisms Of Zinc In Different Clay Minerals And Soil Systems As Influenced By Various Natural Ligands, Mohammed Hashem Stietiya Jan 2010

Sorption Mechanisms Of Zinc In Different Clay Minerals And Soil Systems As Influenced By Various Natural Ligands, Mohammed Hashem Stietiya

LSU Doctoral Dissertations

The bioavailability and fate of Zinc (Zn) in soils is influenced by reactions occurring at the water-mineral interface. Understanding Zn interaction with mineral surfaces is essential to the understanding of Zn fate and toxicity. In this study, adsorption experiments investigated the impact of ligands and pH on the adsorption of Zn to mineral surfaces. X-Ray Absorption Fine Structure Spectroscopy (XAFS) was used to elucidate the adsorption mechanisms of Zn to mineral surfaces as impacted by ligands. Impact of ligands on Zn adsorption was dependent on mineral type and pH of the system. XAFS analysis showed that adsorption mechanisms of Zn …

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Pharmaceutical Compounds In Treatment Wetlands: Potential Removal And Effects On Microbial Processes, Jeremy Landon Conkle Jan 2010

Pharmaceutical Compounds In Treatment Wetlands: Potential Removal And Effects On Microbial Processes, Jeremy Landon Conkle

LSU Doctoral Dissertations

active compounds (PhACs) have been detected in the aquatic environment as a result of loading from various sources. In Louisiana, USA, many municipalities treat wastewater using natural systems, such as lagoons and wetlands, rather than using conventional wastewater treatment technologies and may discharge PhACs into the environment. These treatment systems are not designed to remove PhACs from wastewater, nor is it currently a regulatory requirement. Research on the fate of PhACs in the environment is needed to understand impacts on Louisiana’s important coastal system. Wastewater sampling for PhACs at the Mandeville, LA wastewater treatment plant (WWTP) determined that this system …

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Edaphic And Vegetative Controls On Mercury Cycling In Oligohaline Wetlands, Jonathan M. Willis Jan 2010

Edaphic And Vegetative Controls On Mercury Cycling In Oligohaline Wetlands, Jonathan M. Willis

LSU Doctoral Dissertations

With the expansion of the human population and associated industries there is a concomitant increase in both resource utilization and the production of waste and deleterious by-products. Mercury is a naturally-occurring toxic metal with a complicated and unique biogeochemical cycle, and is often a contaminant of ecotoxicological concern in unindustrialized aquatic habitats. The research described herein was designed to elucidate multiple aspects regarding the behavior of mercury in oligohaline wetland habitats, particularly with respect to edaphic and vegetative effects, through a monitoring and characterization study as well as a series of manipulative experiments. The observational study, conducted in the wetlands …

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Development And Sensory Characteristics Of Salt Substitute Containing Bitterness-Masking Agents, Pamarin Waimaleongora-Ek Jan 2010

Development And Sensory Characteristics Of Salt Substitute Containing Bitterness-Masking Agents, Pamarin Waimaleongora-Ek

LSU Doctoral Dissertations

This study was conducted to develop a sodium-free salt substitute and assess its sensory characteristics. The efficacy of bitterness-masking agents, adenosine-5’-monophosphate (AMP) and L-arginine (Arg), were studied. However, the effectiveness of AMP in inhibiting bitterness of potassium chloride (KCl) was specifically investigated. The threshold values of KCl with and without AMP were determined using the method of limits and the signal detection method. AMP effectively decreased the bitterness imparted by KCl at a ratio of KCl to AMP of 15:1 when the method of limits was utilized. To enhance saltiness and inhibit bitterness, Arg was added to KCl/AMP solutions. The …

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1337 W4yz Of {Dollar}P34king: Toward A Unifying Pragmatic Theory Of Virtual Speech Community Building, Tracy Rene Leblanc Jan 2010

1337 W4yz Of {Dollar}P34king: Toward A Unifying Pragmatic Theory Of Virtual Speech Community Building, Tracy Rene Leblanc

LSU Doctoral Dissertations

Building a speech community requires building a shared history of communicative interaction. Within a virtual medium, speech community members employ accommodations for the lack of shared physical space that face-to-face interactions provide. These accommodations, amassing through extended discourse, bring to light the communicative strategies that virtual interlocutors employ in order to build community. Drawing from a corpus of unscripted, naturally occurring discourse of a particular virtual speech community, I engage three frames of linguistic analysis in order to recognize the communicative strategies that constitute speech community building. Relevance Theory (Sperber and Wilson 1995) accounts for the individual cognitive work involved …

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Resurrecting The Martyrs: The Role Of The Cult Of The Saints, A.D. 370-430, Collin Garbarino Jan 2010

Resurrecting The Martyrs: The Role Of The Cult Of The Saints, A.D. 370-430, Collin Garbarino

LSU Doctoral Dissertations

In the late fourth and early fifth centuries Christians actively sought to reimagine the persecutions of the pre-Constantinian era by keeping the memory of the martyrs alive. The cult of martyrs became one tool for navigating present difficulties and establishing a source of legitimacy. As a valuable connection with the past, the cult of martyrs enabled Christian communities to build identity, and bishops could use it to promote the Christianization of the empire. In spite of the cult's widespread popularity, churches imputed widely disparate meanings to the cult. The cult's function in a particular locale was often shaped by that …

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Student Perspectives On Study Abroad: The Case Of Louisiana State University's Summer Internships In The French Alps, Terri Lee Schroth Jan 2010

Student Perspectives On Study Abroad: The Case Of Louisiana State University's Summer Internships In The French Alps, Terri Lee Schroth

LSU Doctoral Dissertations

While many studies have been conducted on study abroad programs, few have sought to examine the inner workings of a short-term, non-traditional (non-classroom based) program, particularly from the participants’ point-of-view. This in-depth case study explores a short-term (4-week) cultural and linguistic internship program, “LSU in the French Alps,” as well as the perspectives of four program participants. This research was conducted during four phases of the study abroad experience: the pre-departure orientation (4 days on LSU’s main campus), the in-country stay (4 weeks in the French Alps), re-entry into the United States (first 10 days upon return), and post study …

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Evolutionary Dynamics Of Bird Populations In Southeast Asia, Haw Chuan Lim Jan 2010

Evolutionary Dynamics Of Bird Populations In Southeast Asia, Haw Chuan Lim

LSU Doctoral Dissertations

A confluence of factors determines the biological diversity we observe today. Here, I conducted three investigations of the historic, geographic and ecological factors that shaped the morphological and genetic diversity of rainforest birds in Southeast Asia. (1) In the Oriental Dwarf Kingfisher (Ceyx erithaca) complex, the birds are highly polymorphic in plumage. Quantitative analysis of this variation indicated that a large proportion of birds in Sumatra, the Malay Peninsula and Borneo have plumages intermediate between the northerly black form from mainland Asia and the southerly rufous form from Java. Phylogenetic analyses indicated that birds from continental Southeast Asia (north of …

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Dynamic Model Of Ecological Factors Impacting The Gulf Of Mexico Dead Zone, Jimmie Arnold Brumfield Ii Jan 2010

Dynamic Model Of Ecological Factors Impacting The Gulf Of Mexico Dead Zone, Jimmie Arnold Brumfield Ii

LSU Doctoral Dissertations

The industrial agriculture complex of the Mississippi River Drainage Basin has the positive effect of feeding more individuals with less land via the use of chemical nutrients, pesticides and drainage. The negative effects of the agricultural nutrient load are carried by the Mississippi River to the Gulf of Mexico. After the flood of 1927 the Flood Control Act of 1928 began changing the Mississippi River into a navigation and flood control project. While successful, the river was turned into a channel where nutrient input was discharged into the Gulf of Mexico. Nitrogen compounds discharged from the Mississippi are claimed to …

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Athens And Byzantium: Platonic Political Philosophy In Religious Empire, Jeremiah Heath Russell Jan 2010

Athens And Byzantium: Platonic Political Philosophy In Religious Empire, Jeremiah Heath Russell

LSU Doctoral Dissertations

It is traditionally understood that there is a gap, which spans well over one thousand years, between Plato’s own political philosophy and its successor in medieval Islamic philosophy. A most likely bridge between Plato and these later philosophers is Neoplatonism. However, scholars argue that this philosophic school abandoned its predecessor’s emphasis on political philosophy. This dissertation challenges the traditional interpretation by reconstructing a political philosophy based on a Neoplatonic commentary on Plato’s Gorgias. The first two chapters place this commentary within its historical context, as well as its place within the larger Neoplatonic pedagogy. The remainder of the dissertation reconstructs …

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Spatial And Temporal Variabilities On Soils In St. Landry Parish, Louisiana, Stephanie Lynn Johnson Jan 2010

Spatial And Temporal Variabilities On Soils In St. Landry Parish, Louisiana, Stephanie Lynn Johnson

LSU Master's Theses

The spatial and temporal variation of soil properties was evaluated on three sites in close proximity to Bayou Wikoff, St. Landry Parish, Louisiana. A total of 1,068 surface (0-5 cm) samples were collected, geo-located, and transported to Louisiana State University for physical and chemical analyses. Physical and chemical properties were spatially and temporally displayed using ArcGIS. Interpolation techniques such as spline, kriging, and inverse distance weighting were evaluated to determine the best fit model for the project. Spline and inverse distance weighting were found to be the least accurate interpolation models. Kriging provided the most accurate model of spatial and …

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The Dialogism Of Self And Other In Contemporary American Drama, Shih-Yi Huang Jan 2010

The Dialogism Of Self And Other In Contemporary American Drama, Shih-Yi Huang

LSU Doctoral Dissertations

This work is interdisciplinary in orientation and brings together American theatre (and culture) and contemporary ethical philosophy. I am introducing the French philosopher Emmanuel Lévinas and his theory of Self and Other to an analysis of contemporary American drama—a mode of approach that is new to the discipline of theatre studies. Lévinas’s insights are particularly relevant to the concerns of the 21st century and how we might rethink relationships and values. My work looks at contemporary American plays in terms of nationalism, gender politics, racial dynamics and ecological issues. I contend that these playwrights are attempting to go beyond conventional …

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Population Genetics And Systematics Of A Species-Rich Clade Of Neotropical Reef Fishes, The Tubeblenny Genus Acanthemblemaria, Ron Israel Eytan Jan 2010

Population Genetics And Systematics Of A Species-Rich Clade Of Neotropical Reef Fishes, The Tubeblenny Genus Acanthemblemaria, Ron Israel Eytan

LSU Doctoral Dissertations

Neotropical coral reef fish communities are species-poor compared to those of the Indo-West Pacific. An exception to that pattern is the blenny clade Chaenopsidae, one of only three coral reef fish families endemic to the Neotropics. Within the chaenopsids, the genus Acanthemblemaria is the most species-rich. To understand the origin and maintenance of genetic and species diversity in these fishes, I characterized the population genetics for two Acanthemblemaria species, reconstructed the phylogeny of the group, and identified suites of correlated morphological characters responsible for the distinctive skull morphology of these fishes. By combining nuclear and mitochondrial sequence data I was …

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Application Of Anti-H Monoclonal Antibodies To Develop Rapid Immunoassay For Vibrio Vulnificus, Ravirajsinh Jadeja Jan 2010

Application Of Anti-H Monoclonal Antibodies To Develop Rapid Immunoassay For Vibrio Vulnificus, Ravirajsinh Jadeja

LSU Doctoral Dissertations

In the US there are about 76 million foodborne illness cases reported every year, in spite of initiatives by federal agencies. This emphasizes the need for the development of novel detection techniques which are sensitive, specific and rapid. A detection technique should be rapid enough to give results same day, allowing companies to release food lots without delay and decreasing storage costs. This kind of screening would also allow immediate measures, if needed, before releasing the lots. In the case of Vibrio vulnificus (V. vulnificus), conventional methods are available to identify and enumerate this pathogen in oysters, but they are …

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Antioxidant Nanoparticles As Delivery Systems, Carlos Ernesto Astete R. Jan 2010

Antioxidant Nanoparticles As Delivery Systems, Carlos Ernesto Astete R.

LSU Doctoral Dissertations

The goal of the study was to develop antioxidant polymeric nanoparticles as a new delivery system for food and pharmaceutical applications. Natural antioxidants like alpha-tocopherol, vitamin C, and carnosine, are responsible to protect biological systems against free radicals attack. The conjugation of vitamin C-vitamin E (EC) and alpha-tocopherol-carnosine (VECAR) were performed to obtain antioxidant surfactants which were used for polymeric nanoparticle synthesis. The surfactant made of á-tocopherol (vitamin E) and ascorbic acid (vitamin C) of antioxidant properties dubbed as EC was used to make poly(lactic-co-glycolic) acid (PLGA) nanoparticles. Self-assembled EC nanostructures and PLGA-EC nanoparticles were made by nanoprecipitation, and the …

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Connections Between Individual Dispersal Behavior And The Multi-Scale Distribution Of A Saproxylic Beetle, Heather Bird Jackson Jan 2010

Connections Between Individual Dispersal Behavior And The Multi-Scale Distribution Of A Saproxylic Beetle, Heather Bird Jackson

LSU Doctoral Dissertations

Species incidence results from a complex interaction among species traits (e.g., mobility and behavior), intra- and inter-specific interactions, quality and configuration of the landscape, and historical events. Determining which factors are most important to incidence is difficult because the multiple processes affecting incidence operate at different temporal and spatial scales. I conducted an empirically-based study relating individual behavior (dispersal, habitat selection, and intra-specific interactions) with hierarchically-organized environmental filters to predict the incidence of Odontotaenius disjunctus (Passalidae), a saproxylic (=decayed wood dependent) beetle common to eastern North American forests, at multiple spatial scales. In dispersal experiments, O. disjunctus movement was faster …

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Artisanal Whaling In The Atlantic: A Comparative Study Of Culture, Conflict, And Conservation In St. Vincent And The Faroe Islands, Russell Fielding Jan 2010

Artisanal Whaling In The Atlantic: A Comparative Study Of Culture, Conflict, And Conservation In St. Vincent And The Faroe Islands, Russell Fielding

LSU Doctoral Dissertations

Whalers from the Caribbean island of St. Vincent and the North Atlantic archipelago of the Faroe Islands hunt pilot whales and a variety of other small cetaceans for food. Vincentian whalers use harpoons, thrown by hand or fired from a modified shotgun mounted on the boat. Faroese whalers, using several dozen boats, work cooperatively to drive an entire pod of whales ashore, where shore-based whalers are waiting to complete the kill with traditional whaling knives. Vincentian whaling traces its origins to the late nineteenth century. Records of Faroese whaling date to the late sixteenth century but the practice is thought …

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