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2001

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Factors Affecting Community Structure Of Mangroves Associated With Point Bars And Islands In A Costa Rican Estuary., Patricia Delgado-Sanchez Jan 2001

Factors Affecting Community Structure Of Mangroves Associated With Point Bars And Islands In A Costa Rican Estuary., Patricia Delgado-Sanchez

LSU Historical Dissertations and Theses

A conceptual model of relationships between mangrove community structure and their physico-chemical environment is developed for point bars and islands in the Tempisque-Bebedero estuarine system, Pacific coast, Costa Rica. The model identifies key variables whose relationships to mangrove forest structure are the focus of extended field and mesocosm studies. Point bars and islands are very dynamic features constantly modified by hydrology and sediment dynamics. In the Tempisque-Bebedero system, they are additionally modified by extensive agricultural activities. High riverine sediment loads, associated with irrigation and seasonal wind-driven resuspension, result in significantly higher sediment deposition in lower intertidal zones; upper intertidal zones …

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A Performer's Guide To Theatrical Elements In Selected Trombone Literature., Cason Austin Duke Jan 2001

A Performer's Guide To Theatrical Elements In Selected Trombone Literature., Cason Austin Duke

LSU Historical Dissertations and Theses

In the last forty years, many new solo and chamber pieces have been written for the trombone which involve elements of a theatrical nature, including lighting, make-up, costume, stage direction, dialogue/narration, sound effects, props, and audience interaction. It is difficult for a trombonist searching for music to discern a piece's theatrical nature by its listing in most catalogs. This document has attempted to solve that problem by gathering pieces that share these elements into an annotated collection. Nearly 200 pieces were discovered through contacts made with individual trombonists, composers, and publishers around the world. Of these, over sixty were acquired …

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Synthetic Peptides: Design, Structure And Biological Function., Lars Gustav Johan Hammarstrom Jan 2001

Synthetic Peptides: Design, Structure And Biological Function., Lars Gustav Johan Hammarstrom

LSU Historical Dissertations and Theses

The synthesis of a series of polyfunctional Calpha,C alpha-disubstituted glycines is described. The lysine-like amino acid analog, Api, was prepared by regioselective hydrolysis of a triBoced hydantoin, followed by Nalpha-protection to yield the first orthogonally protected ionizable Calpha,Calpha-disubstituted amino acid which is alicyclic. The synthesis of three orthogonally protected tetrafunctional amino acids, Bap, Bglu, and Basp was envisioned by alkylation of the organic synthon ethyl nitroacetate. Subsequent regioselective modification should allow for the isolation of the first tetrafunctional amino acid derivatives suitable for solid-phase synthesis. These amino acids are designed to induce peptide secondary structure by salt-bridge stabilization. A series …

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The Influence Of Agricultural Policy On Economic Integration Among Central American Countries: A Game Theoretic Analysis., Jorge Luis Icabalceta Mairena Jan 2001

The Influence Of Agricultural Policy On Economic Integration Among Central American Countries: A Game Theoretic Analysis., Jorge Luis Icabalceta Mairena

LSU Historical Dissertations and Theses

The influence of eight commodity groups on international economic integration in five Central American countries are analyzed. The commodity groups are rice, beans, corn, sorghum, bananas, coffee, sugar, and beef. The countries are Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua. A game theory framework is used to find a Nash equilibrium solution to a set of trade negotiation scenarios. The payoffs of the Political Preference Function (PPF) are used for the trade liberalization scenarios under analysis. These PPF payoffs are estimated using the MISS model. The nominal protection coefficient (NPC) is used as the main criterion for trade liberalization. …

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Benthic Foraminifera In Two Stressed Environments Of The Northern Gulf Of Mexico., Emil Platon Jan 2001

Benthic Foraminifera In Two Stressed Environments Of The Northern Gulf Of Mexico., Emil Platon

LSU Historical Dissertations and Theses

This is a study of Foraminifera from two stressed environments of the northern Gulf of Mexico: one of coastal seasonal hypoxia, the other of hydrocarbon seeps in bathyal depths---oxygen depletion being the common stressor. Many species of benthic Foraminifera survive the extreme oxygen depletion of Louisiana shelf waters in spring and summer. The dominant species are infaunal and have an adaptive tolerance to near anoxia or anoxia. A census of foraminiferal species present in dated sediment core samples reveals significant changes in the composition of the Louisiana-shelf benthic foraminiferal community in the past century. Agglutinated and porcelaneous orders living in …

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Middle School Students' Understanding Of The Natural History Of The Earth And Life On Earth As A Function Of Deep Time., Azalie Cecile Pulling Jan 2001

Middle School Students' Understanding Of The Natural History Of The Earth And Life On Earth As A Function Of Deep Time., Azalie Cecile Pulling

LSU Historical Dissertations and Theses

The purpose of this study was to use deep time, that is geologic time as a mechanism to explore middle school students' understanding of the natural history of the earth and the evolution of life on earth. Geologic time is a logical precursor to middle school students' understanding of biological evolution. This exploratory, mixed model study used qualitative and quantitative methods in each stage of the research to explore sixth grade students, understanding of geologic time, their worldviews (e.g., conceptual ecology), and conceptual change. The study included fifty-nine students in the large group study and four case studies. The primary …

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Systemic And Colonic Hemodynamic And Vasomotor Responses To Adenosine Triphosphate In Horses., Joanne Tetens Jan 2001

Systemic And Colonic Hemodynamic And Vasomotor Responses To Adenosine Triphosphate In Horses., Joanne Tetens

LSU Historical Dissertations and Theses

Clinically healthy horses were instrumented to measure hemodynamic, metabolic, hematologic, and serum biochemical variables and monitor clinical signs during and after IV infusion of ATP-MgCl2. Conscious horses were administered ATP-MgCl2 (0.05 mg ATP/kg body weight/min; 0.05 mg/kg/min increments; maximum rate-1.0 mg/kg/min), which caused a rate-dependent increase in cardiac output, decrease in systemic vascular resistance, and mild pulmonary hypertension. The maximal safe infusion rate was 0.3 mg ATP/kg body weight/min. Anesthetized horses administered ATP-MgCl2 (0.1 to 1 mg/kg/min; 0.1 mg/kg/min increments) developed a rate-dependent decrease in systemic and colonic vascular resistance via vasodilatation. In conscious horses administered lowdose endotoxin, ATP-MgCl2 (dose-100 …

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Natural History And Phytogeography Of The Loess Hills And Ravines, Lower Mississippi Embayment., Igor Igorevich Ignatov Jan 2001

Natural History And Phytogeography Of The Loess Hills And Ravines, Lower Mississippi Embayment., Igor Igorevich Ignatov

LSU Historical Dissertations and Theses

Although located near the middle of the Southeastern Coastal Plain, the hardwood forests of the Loess Hills of the Lower Mississippi Embayment have never been thoroughly studied or satisfactorily described in the literature. This dissertation is a case study of the biogeographic variation in the species composition and structure of the mature ravine hardwood forests within the southern section of the Loess Hills, from Warren County, Mississippi, south to East Baton Rouge and Vermilion Parishes, Louisiana, as affected by latitude, physiography, edaphic conditions, and disturbance. A parallel goal is, on the basis of the current biogeographic conditions and successional dynamics, …

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Physiology And Lateralization Of Swallowing: A Comparison Between Young And Old Adults., Stephanie Kay Daniels Jan 2001

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. …

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Effect Of Chromium, Dried Brewers Yeast, And Mannan Oligosaccharides On Sow Productivity And Growth Performance Of Weanling Pigs., Frederick Masson Lemieux Jr Jan 2001

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 …

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

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

LSU Historical Dissertations and Theses

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

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

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

LSU Historical Dissertations and Theses

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

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Physicochemical, Functional And Spectroscopic Analysis Of Crawfish Chitin And Chitosan As Affected By Process Modification., Sandeep Kumar Rout Jan 2001

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 …

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Public Librarians And The Civil Rights Movement: Alabama, 1955-1965, Patterson Toby Graham Jan 2001

Public Librarians And The Civil Rights Movement: Alabama, 1955-1965, Patterson Toby Graham

Faculty Publications

Racial segregation in southern public libraries affected millions of African Americans before the Civil Rights movement, and for librarians in the South it created a conflict between professional and regional values. Ultimately, it was the efforts of black activists rather than librarians acting on their ethical impulses that ended library segregation. Librarians were constrained by local racial customs, Jim Crow laws, and, often, by their own racial attitudes. Also, librarians recognized that there were inherent dangers associated with defying the segregationists. There were a few, however, who challenged the racial status quo, and these individuals demonstrated the potential of librarians …

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Faculty Publications 2000, Lsu Health Sciences Center New Orleans Jan 2001

Faculty Publications 2000, Lsu Health Sciences Center New Orleans

Historical Faculty Publications

This Faculty bibliography contains 824 publications.

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The Stepchild Of National Liberation: Women And Rights In The New South Africa, Penelope Andrews Jan 2001

The Stepchild Of National Liberation: Women And Rights In The New South Africa, Penelope Andrews

Articles & Chapters

No abstract provided.

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The Information Technology Agreement: Building A Global Information Infrastructure While Avoiding Customs Classification Disputes: A Perspective For The Customs Practitioner, Joseph Tasker, Jr. Jan 2001

The Information Technology Agreement: Building A Global Information Infrastructure While Avoiding Customs Classification Disputes: A Perspective For The Customs Practitioner, Joseph Tasker, Jr.

Brooklyn Journal of International Law

No abstract provided.

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Market Realities V. Indigenous Equities, Rekha Ramani Jan 2001

Market Realities V. Indigenous Equities, Rekha Ramani

Brooklyn Journal of International Law

No abstract provided.

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Trading Systems: Vietnam's Creation Of A New Intellectual Property Regime At The Inception Of The Vietnam-United States Bilateral Trade Agreement, Rachel L. Nass Jan 2001

Trading Systems: Vietnam's Creation Of A New Intellectual Property Regime At The Inception Of The Vietnam-United States Bilateral Trade Agreement, Rachel L. Nass

Brooklyn Journal of International Law

No abstract provided.

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The Sec's (Changing?) Stance On Ias, Maureen Peyton King Jan 2001

The Sec's (Changing?) Stance On Ias, Maureen Peyton King

Brooklyn Journal of International Law

No abstract provided.

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

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

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

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

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Chondrocranium And Visceral Skeleton Of Atelopus Tricolor And Atelophryniscus Chrysophorus, E O. Lavilla, Rafael O. De Sá Jan 2001

Chondrocranium And Visceral Skeleton Of Atelopus Tricolor And Atelophryniscus Chrysophorus, E O. Lavilla, Rafael O. De Sá

Biology Faculty Publications

Atelopus tricolor and Atelophryniscus chrysophorus have gastromyzophorous tadpoles. Aside from specific differences, the larval chondrocrania and visceral skeletons show several shared character states, including an almost quadrangular, open chondrocranium , cornua trabeculae with expanded tips, cartilago suprarostralis as a single element, a posteriorly projected arcus subocularis quadrati, a closed muscular tunnel, and a simplified branchial basket, with only three pairs of ceratobranchiales. They are compared with diverse character states of suctorial larvae considering them as causally related to the stream life adaptations.

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"Apprendi" And Plea Bargaining, Nancy J. King, Susan Riva Klein Jan 2001

"Apprendi" And Plea Bargaining, Nancy J. King, Susan Riva Klein

Vanderbilt Law School Faculty Publications

Before "Apprendi", prosecutors using recidivism as a club could, and did, regularly insist that defendants admit aggravating facts as part of the plea or face additional time. When the prosecutor's threats of added time were not persuasive and the proof of aggravating facts weak, the defendant prior to "Apprendi" could refuse to admit to the aggravating fact, and plead guilty only to the offense without the aggravating fact. Nothing about "Apprendi" gives additional leverage to the prosecutor in this situation. A defendant who, prior to "Apprendi", decided to risk trial rather than face the aggravated sentence will make the same …

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The Voices From The Sanctuary: The Female Narrators Of J M Coetzee's In The Heart Of The Country And Doris Lessing's Memoirs Of A Survivor, James L. Forman Jan 2001

The Voices From The Sanctuary: The Female Narrators Of J M Coetzee's In The Heart Of The Country And Doris Lessing's Memoirs Of A Survivor, James L. Forman

Masters Theses

In both In the Heart of the Country (1977) by J. M. Coetzee and The Memoirs of a Survivor (1974) by Doris Lessing, a female narrator fabricates a sanctuary—mental rather than physical—that enables each woman to challenge, deflect, or adapt to a conflict and that shelters her from a hostile, patriarchal society. For Coetzee's narrator (Magda) in In the Heart of the Country, writing, rewriting, and editing provide the necessary devices to establish her asylum in her quest for identity. For Lessing's narrator (the survivor) in The Memoirs of a Survivor, escaping behind the wall allows her to …

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Pet Bonding And Pet Bereavement Among Adults, Kelli Brosam Jan 2001

Pet Bonding And Pet Bereavement Among Adults, Kelli Brosam

Masters Theses

This study was designed to examine the relationship between the intensity of bonding and grief responses among adults following the death of their dogs or cats. Three hypotheses were considered: 1) The strength of the bond between an adult and a pet will predict the intensity of grief following the death of that pet. Specifically, adults who are more strongly bonded with a pet will experience more intense grief following the death of that pet than adults who are less strongly bonded. 2) Regardless of type of animal, women will be more highly bonded to pets, and women will report …

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Managing Wetland Vegetation For Marsh Birds And Waterfowl At Carlyle Lake Wildlife Management Area, Il, Matthew W. Bowyer Jan 2001

Managing Wetland Vegetation For Marsh Birds And Waterfowl At Carlyle Lake Wildlife Management Area, Il, Matthew W. Bowyer

Masters Theses

The high cost of restoring and managing wetlands warrants careful assessment of their management potential. We designed this study to provide basic information on how seed banks and hydroperiod influence the development of habitat for migratory birds in restored wetlands at Carlyle Lake Wildlife Management Area (CLWMA). The objectives were to: (1) survey the composition of the seed banks; (2) investigate the effects of early- vs. late-drawdowns on the germination and growth of these plants; and (3) monitor the use of these communities by wetland birds during migration and the breeding season. The study was conducted on a marsh complex …

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Substantial Activity And Non-Economic Commerce: Toward A New Theory Of The Commerce Clause, Jason Everett Goldberg Jan 2001

Substantial Activity And Non-Economic Commerce: Toward A New Theory Of The Commerce Clause, Jason Everett Goldberg

Journal of Law and Policy

No abstract provided.

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

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

Journal of Law and Policy

No abstract provided.

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Miller Versus Texas: Police Violence, Race Relations, Capital Punishment, And Gun-Toting In Texas In The Nineteenth Century - And Today, Cynthia Leonardatos, David P. Kopel, Stephen P. Halbrook Jan 2001

Miller Versus Texas: Police Violence, Race Relations, Capital Punishment, And Gun-Toting In Texas In The Nineteenth Century - And Today, Cynthia Leonardatos, David P. Kopel, Stephen P. Halbrook

Journal of Law and Policy

No abstract provided.

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Firefly Flashing Is Controlled By Gating Oxygen To Light-Emitting Cells, G. S. Timmins, F. J. Robb, C. M. Wilmot, S. K. Jackson, H. M. Swartz Jan 2001

Firefly Flashing Is Controlled By Gating Oxygen To Light-Emitting Cells, G. S. Timmins, F. J. Robb, C. M. Wilmot, S. K. Jackson, H. M. Swartz

Dartmouth Scholarship

Although many aspects of firefly bioluminescence are understood, the mechanism by which adult fireflies produce light as discrete rapid flashes is not. Here we examine the most postulated theory, that flashing is controlled by gating oxygen access to the light-emitting cells (photocytes). According to this theory, the dark state represents repression of bioluminescence by limiting oxygen, which is required for bioluminescence; relief from this repression by transiently allowing oxygen access to the photocytes allows the flash. We show that normobaric hyperoxia releases the repression of light emission in the dark state of both spontaneously flashing and non-flashing fireflies, causing continual …

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