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Multi-Institutional Collaborations In Science: Structure, Types, And Outcomes., Ivan Mihailov Chompalov Jan 1998

Multi-Institutional Collaborations In Science: Structure, Types, And Outcomes., Ivan Mihailov Chompalov

LSU Historical Dissertations and Theses

The advent of modern "big science" brings about a new kind of research formation: multi-institutional collaborations involving teams of researchers from several organizations. Despite their recent proliferation and visibility, no general classification of these "virtual organizations" exists. This study adopts a macrosociological, comparative perspective to develop a variety of classification schemes that capture the systematic variation of interorganizational collaborations in science along basic structural dimensions and to examine the relationships of these classifications with important sociological outcomes. Qualitative, historical analysis of collaborations in high-energy physics, space science, and geophysics showed that, when we set aside field-specific differences, seven general dimensions …

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A Validation Study Of The Assessment Of Dissimulation Scale Using Criminal And Civilly Committed Participants., Jill Suzanne Hayes Jan 1998

A Validation Study Of The Assessment Of Dissimulation Scale Using Criminal And Civilly Committed Participants., Jill Suzanne Hayes

LSU Historical Dissertations and Theses

Dissimulation malingering, unlike simulation malingering, refers to downplaying actual psychological difficulties in order to achieve secondary gain. Although several psychological tests have subscales designed to detect dissimulation, only the Assessment of Dissimulation Scale (ADS) has been specifically designed for this purpose. This screening instrument had limited usefulness, as it was validated only with college students. The purpose of this study was to determine whether the ADS was effective in detecting dissimulation in criminal and civilly committed populations which are likely to be the clinical targets for such a scale, and to establish a cut-off score on the ADS above which …

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Effects Of Anesthesia And Potential Antispastic Agents In An Experimental Model Of Spasticity., Heather Colleen Mosser Jan 1998

Effects Of Anesthesia And Potential Antispastic Agents In An Experimental Model Of Spasticity., Heather Colleen Mosser

LSU Historical Dissertations and Theses

Spasticity is a common motor disorder in spinal cord injured-patients. Therapeutic agents used to treat the motor abnormalities exist but are often unsatisfactory. Tests of potential pharmacotherapies are routinely conducted in anesthetized intact or acutely spinal animals, conditions which do not accurately simulate the human situation. The purpose of this dissertation was to develop, validate and use the chronic spinal rat as a model of spasticity that closely approximates the human spastic syndrome to evaluate antispastic agents. The main goals of this research project were to: (1) demonstrate the development of spasticity in the chronic spinal rat; (2) determine effects …

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Questions About Behavioral Function (Qabf): A Behavioral Checklist For Functional Assessment Of Aberrant Behavior., Theodosia Renata Paclawskyj Jan 1998

Questions About Behavioral Function (Qabf): A Behavioral Checklist For Functional Assessment Of Aberrant Behavior., Theodosia Renata Paclawskyj

LSU Historical Dissertations and Theses

Functional assessment is a tool in behavior therapy used to identify the functional relationships between a behavior of interest and the individual's environment. A functional assessment identifies variables that both occasion and maintain a particular behavior. Traditional functional assessment methodologies have relied on experimental techniques in which analog sessions are designed to mimic situations in the individual's environment. However, these techniques are time-consuming, require extensive training, and rely on the availability of numerous resources in the individual's setting. Development of a brief functional assessment checklist would circumvent these difficulties and make a significant contribution to applied behavioral psychology. The proposed …

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Facilitating Knowledge Integration And Flexibility: The Effects Of Reflection And Exposure To Alternative Models., Lewis Garnet Roussel Jr Jan 1998

Facilitating Knowledge Integration And Flexibility: The Effects Of Reflection And Exposure To Alternative Models., Lewis Garnet Roussel Jr

LSU Historical Dissertations and Theses

Three experiments investigated the effect of various kinds of reflection (within-task and post-task reflection) on learning a process control task. Also, two ways of providing learners with alternative ideas about task behavior, exposure to other's ideas and providing hints for task solution, were examined. The task involved a simulated "sugar production factory" in which the learners sought to control sugar production by manipulating workforce size. It was predicted that combining within-task reflection with exposure to alternative task ideas would lead to superior task performance through integration of experiential and reflective knowledge. Contrary to the prediction, within-task reflection consistently interfered with …

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The Effect Of Participation In The Occupational Safety And Health Administration's Voluntary Protection Programs On Injury/Illness Rates., Linda Diane Weems Jan 1998

The Effect Of Participation In The Occupational Safety And Health Administration's Voluntary Protection Programs On Injury/Illness Rates., Linda Diane Weems

LSU Historical Dissertations and Theses

The purpose of this study was to determine the effect participation in the Occupational Safety and Health Administration's (OSHA) Voluntary Protection Programs (VPP) has on injury/illness rates (IIR). Data was obtained from OSHA's Office of Cooperative Programs for the companies participating in the VPP for the years 1983 through 1997. This data was summarized and analyzed to satisfy this study's objectives. Objective 1 was to describe and compare the companies participating in OSHA's VPP and their IIR with the average IIR reported by the Bureau of Labor Statistics (BLS) for the industries for each year of the program's existence from …

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Hematite And Calcite Coatings On Fossil Vertebrates, B. A.O. Huiming, Paul L. Koch, Robert P. Hepple Jan 1998

Hematite And Calcite Coatings On Fossil Vertebrates, B. A.O. Huiming, Paul L. Koch, Robert P. Hepple

Faculty Publications

Hematite coatings are common on vertebrate fossils from Paleocene/Eocene paleosol deposits in the Bighorn Basin, Wyoming. In general, hematite coatings are found only on fossils and are limited to soils exhibiting hydromorphic features and moderate maturity. Pétrographie and isotopic evidence suggests that hematite and micritic calcite formed at nearly the same time in a pedogenic environment, whereas sparry calcite formed later at greater burial depths. The parent material of paleosols is rich in iron, supplying an ample source of iron for hematite formation. Decomposition of animal tissues around bones may enhance the weathering of iron-bearing minerals in soils surrounding carcasses, …

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Compilation Techniques For Out-Of-Core Parallel Computations, M. Kandemir, A. Choudhary, J. Ramanujam, R. Bordawekar Jan 1998

Compilation Techniques For Out-Of-Core Parallel Computations, M. Kandemir, A. Choudhary, J. Ramanujam, R. Bordawekar

Faculty Publications

The difficulty of handling out-of-core data limits the performance of supercomputers as well as the potential of the parallel machines. Since writing an efficient out-of-core version of a program is a difficult task and virtual memory systems do not perform well on scientific computations, we believe that there is a clear need for compiler directed explicit I/O approach for out-of-core computations. In this paper, we first present an out-of-core compilation strategy based on a disk storage abstraction. Then, we offer a compiler algorithm to optimize locality of disk accesses in out-of-core codes by choosing a good combination of file layouts …

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Quantum Convolution Of Linearly Recursive Sequences, Siu Hung Ng, Earl J. Taft Dec 1997

Quantum Convolution Of Linearly Recursive Sequences, Siu Hung Ng, Earl J. Taft

Faculty Publications

No abstract provided.

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Of Rectangles And Centuries. A History Of The Use Of A Garden Pattern From Romanesque Europe To Nineteenth-Century New Orleans, David Dwayne Lewis Dec 1997

Of Rectangles And Centuries. A History Of The Use Of A Garden Pattern From Romanesque Europe To Nineteenth-Century New Orleans, David Dwayne Lewis

LSU Historical Dissertations and Theses

Settlers of New Orleans brought with them ideas of gardens that influenced the way they shaped gardens in the colony. Although the influence of those ideas has been acknowledged in studies of New Orleans gardens, specific connections between the ideas and gardens in New Orleans have not been made. To illuminate some of those connections, this study focuses on one garden pattern — a composition of long, rectangular planting beds -- that is common to at least fifty gardens in New Orleans and to European gardens dating from the ninth century. A developmental history that chronicles the use of the …

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Chern-Simons States In Spin-Network Quantum Gravity, Rodolfo Gambini, Jorge Griego, Jorge Pullin Nov 1997

Chern-Simons States In Spin-Network Quantum Gravity, Rodolfo Gambini, Jorge Griego, Jorge Pullin

Faculty Publications

In the context of canonical quantum gravity in terms of Ashtekar's new variables, it is known that there exists a state that is annihilated by all the quantum constraints and that is given by the exponential of the Chern-Simons form constructed with the Asthekar connection. We make a first exploration of the transform of this state into the spin-network representation of quantum gravity. The discussion is limited to trivalent nets with planar intersections. We adapt an invariant of tangles to construct the transform and study the action of the Hamiltonian constraint on it. We show that the first two coefficients …

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Large Quantum Gravity Effects: Backreaction On Matter, Rodolfo Gambini, Jorge Pullin Oct 1997

Large Quantum Gravity Effects: Backreaction On Matter, Rodolfo Gambini, Jorge Pullin

Faculty Publications

We re-examine the large quantum gravity effects discovered by Ashtekar in the context of (2 + 1)-dimensional gravity coupled to matter. We study an alternative one-parameter family of coherent states of the theory in which the large quantum gravity effects on the metric can be diminished, at the expense of losing coherence in the matter sector. Which set of states is the one that occurs in nature will determine if the large quantum gravity effects are actually observable as wild fluctuations of the metric or rapid loss of coherence of matter fields. © World Scientific Publishing Company.

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Differential Display: Identifying Genes Involved In Cardiomyocyte Proliferation, Stephania Cormier-Regard, Daniel B. Egeland, Vivien J. Tannoch, William C. Claycomb Sep 1997

Differential Display: Identifying Genes Involved In Cardiomyocyte Proliferation, Stephania Cormier-Regard, Daniel B. Egeland, Vivien J. Tannoch, William C. Claycomb

Division of Basic Science Faculty Publications

An estimated 15,000 different mRNA species are expressed in a typical mammalian cell. The differential expression of mRNAs in both a temporal and cell-specific manner determines the fate of the cell and creates the organism. Analysis of this differential gene expression has become a central aim of many laboratories attempting to understand the mechanisms underlying various biological processes. Currently, we are using a technique called differential display to analyze the differential expression of genes in cardiomyocytes. Differential display is a rapid and powerful technique that was introduced by Liang and Pardee in 1992. Since that time, it has been successfully …

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Bis[(Anhydro-Meso-Rhodochlorinato-Xv Methyl Ester)Zinc(Ii)], Mathias O. Senge, Kevin M. Smith Aug 1997

Bis[(Anhydro-Meso-Rhodochlorinato-Xv Methyl Ester)Zinc(Ii)], Mathias O. Senge, Kevin M. Smith

Faculty Publications

The title compound, bis[(methyl 8,13-diethyl-2,21,22,2 3-tetrahydro-3,7,12,17-tetramethyl-2 3-oxo-3H-benzo[at]-porphyrin-18-carboxylato-κ4N) zinc (II)], [Zn(C33H34-N4O3)]2, has similar structural characteristics to the naturally occurring factor F430 and forms dimers that are held together by axial interactions between the zinc(II) center and the cyclohexanone carbonyl O atom of a neighboring macrocycle [Zn - O3 2.204 (3) Å]. These dimers form infinite stacks in the crystal stabilized by π-π interactions between the aromatic ring systems.

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In Vivo Kinetics Of A Redox-Regulated Transcriptional Switch, Huangen Ding, Bruce Demple Aug 1997

In Vivo Kinetics Of A Redox-Regulated Transcriptional Switch, Huangen Ding, Bruce Demple

Faculty Publications

SoxR is a transcription activator governing a cellular response to superoxide and nitric oxide in Escherichia coli. SoxR protein is a homodimer, and each monomer has a redox-active [2Fe-2S] cluster. Oxidation and reduction of the [2Fe-2S] clusters can reversibly activate and inactivate SoxR transcriptional activity. Here, we use electron paramagnetic resonance spectroscopy to follow the redox-switching process of SoxR protein in vivo. SoxR [2Fe-2S] clusters were in the fully reduced state during normal aerobic growth, but were completely oxidized after only 2-min aerobic exposure of the cells to superoxide-generating agents such as paraquat. The oxidized SoxR [2Fe-2S] clusters were rapidly …

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Relaying: An Intercropping Approach To The Co-Culture Of Crawfish And Rice (Bulletin #862), W. R. Mcclain, P. K. Bollich, J. M. Gillespie Jul 1997

Relaying: An Intercropping Approach To The Co-Culture Of Crawfish And Rice (Bulletin #862), W. R. Mcclain, P. K. Bollich, J. M. Gillespie

LSU AgCenter Bulletins

This study was designed to examine the biological and economic efficacy of relaying crawfish into a growing rice crop in an intercropping manner.

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Epidermal Cell Fate And Patterning In Leaves, John C. Larkin, M. David Marks, Jeanette Nadeau, Fred Sack Jul 1997

Epidermal Cell Fate And Patterning In Leaves, John C. Larkin, M. David Marks, Jeanette Nadeau, Fred Sack

Faculty Publications

No abstract provided.

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Louisiana Agriculture Magazine, Summer 1997, Lsu Agricultural Experiment Station Jul 1997

Louisiana Agriculture Magazine, Summer 1997, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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Seasonal Abudance Of Arthropod Populations On Selected Soybean Variteties Grown In Early Season Production Systems In Louisiana (Bulletin #860), Michael L. Boyd, David J. Boethel, B. Rogers Leonard, Robert J. Habetz, Lester P. Brown, William B. Hallmark Jun 1997

Seasonal Abudance Of Arthropod Populations On Selected Soybean Variteties Grown In Early Season Production Systems In Louisiana (Bulletin #860), Michael L. Boyd, David J. Boethel, B. Rogers Leonard, Robert J. Habetz, Lester P. Brown, William B. Hallmark

LSU AgCenter Bulletins

The data presented in this report were collected by entomologists to provide Louisiana soybean producers with information on insect management practices that may be required as they select the soybean maturity group that best fits their production systems.

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Depicting The Communications Program At A Research Facility: A Case Analysis Of Pennington Biomedical Research Center, Maura Ilene Brady May 1997

Depicting The Communications Program At A Research Facility: A Case Analysis Of Pennington Biomedical Research Center, Maura Ilene Brady

Honors Capstones

No abstract provided.

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Automated Track Recognition And Event Reconstruction In Nuclear Emulsion, P. Deines-Jones, A. Aranas, M. L. Cherry, J. Dugas, D. Kudzia, B. S. Nilsen, K. Sengupta, C. J. Waddington, J. P. Wefel, B. Wilczynska, H. Wilczynski, B. Wosiek May 1997

Automated Track Recognition And Event Reconstruction In Nuclear Emulsion, P. Deines-Jones, A. Aranas, M. L. Cherry, J. Dugas, D. Kudzia, B. S. Nilsen, K. Sengupta, C. J. Waddington, J. P. Wefel, B. Wilczynska, H. Wilczynski, B. Wosiek

Faculty Publications

The major advantages of nuclear emulsion for detecting charged particles are its submicron position resolution and sensitivity to minimum ionizing particles. These must be balanced, however, against the difficult manual microscope measurement by skilled observers required for the analysis. We have developed an automated system to acquire and analyze the microscope images from emulsion chambers. Each emulsion plate is analyzed independently, allowing coincidence techniques to be used in order to reject background and estimate error rates. The system has been used to analyze a sample of high-multiplicity Pb-Pb interactions (charged particle multiplicities ∼1100) produced by the 158 GeV/c per nucleon …

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Government Censorship Of The Internet: A Denial Of The Individual Right To Access, Robert Alan Weil Apr 1997

Government Censorship Of The Internet: A Denial Of The Individual Right To Access, Robert Alan Weil

Honors Capstones

No abstract provided.

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Ill-Posedness Of A Double-Null Free-Evolution Scheme For Black Hole Spacetimes, Carsten Gundlach, Jorge Pullin Apr 1997

Ill-Posedness Of A Double-Null Free-Evolution Scheme For Black Hole Spacetimes, Carsten Gundlach, Jorge Pullin

Faculty Publications

We suggest that 'free-evolution' integration schemes for the Einstein equations (that do not enforce constraints) may contain exponentially growing modes that render them useless in numerical integrations of black hole spacetimes, independently of how the equations are differenced. As an example we consider the evolution of Schwarzschild and Reissner-Nordström spacetimes in double-null coordinates.

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Time Series Measurements Of Chlorophyll Fluorescence In The Oceanic Bottom Boundary Layer With A Multisensor Fiber-Optic Fluorometer, E.J. D'Sa, S.E. Lohrenz, V.L. Asper, R.A. Walters Jan 1997

Time Series Measurements Of Chlorophyll Fluorescence In The Oceanic Bottom Boundary Layer With A Multisensor Fiber-Optic Fluorometer, E.J. D'Sa, S.E. Lohrenz, V.L. Asper, R.A. Walters

Faculty Publications

No abstract provided.

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Development Of A Prototype Computer-Assisted Well Control System For Deep Ocean Drilling Environments., Orville Allen Kelly Jan 1997

Development Of A Prototype Computer-Assisted Well Control System For Deep Ocean Drilling Environments., Orville Allen Kelly

LSU Historical Dissertations and Theses

An advanced prototype computer-assisted deep water drilling well control system was developed using process control technology. The goal of the system was to improve rig safety by reducing the potential for surface and underground blowouts through providing enhanced bottom hole and casing seat pressure control during the well kill process. The system developed is capable of full computer control of the fluid pump and drilling choke control functions during normal well control operations. The system provides computer-assistance in collecting and curve fitting slow circulation rate pump pressure data, in developing a well kill program (kill sheet), and in detecting anomalies …

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Evaluation Of Water-Seeded No-Till Rice Culture With Respect To Weeds And Seedling Disease., Roland Detleo Mendt Jan 1997

Evaluation Of Water-Seeded No-Till Rice Culture With Respect To Weeds And Seedling Disease., Roland Detleo Mendt

LSU Historical Dissertations and Theses

Field studies were conducted over three years to evaluate preplant postemergence herbicides for red rice control in rice under no-till water-seeded culture. Application of paraquat or sulfosate plus thiobencarb and paraquat alone 3 days before seeding (DBS) resulted in the greatest red rice control 11 weeks after seeding (WAS). Rice yield was increased and percent red rice in rice grain decreased when paraquat or sulfosate was applied in combination with thiobencarb compared with the nontreated control. Rice yield was increased when herbicides were applied 3 and 7 DBS as compared with 14 and 28 DBS. Aqueous extracts of cursed buttercup, …

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Academic Misconduct: Methods Of Influencing Undergraduates' Perceptions Of The Seriousness And Frequency Of Cheating., Betty Diane Baugh Sistrunk Jan 1997

Academic Misconduct: Methods Of Influencing Undergraduates' Perceptions Of The Seriousness And Frequency Of Cheating., Betty Diane Baugh Sistrunk

LSU Historical Dissertations and Theses

Academic misconduct is a problem that all institutions of higher education experience. Because few incidents are worthy of national attention, the media create the impression that cheating is rare. The truth is that, depending on the source, up to 75% of college students admit having cheated on exams, papers, and other academic activities. One approach to promoting ethical behavior on campus is a framework based on student development theories. William Kibler of Texas A&M University has created a comprehensive program which includes intervention strategies designed to promote an ethos that nurtures academic integrity. Two components in this plan are a …

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Relationship Of Self-Injurious Behavior And Aggression To Social Skills In Persons With Severe And Profound Mental Retardation., Dee Duncan Jan 1997

Relationship Of Self-Injurious Behavior And Aggression To Social Skills In Persons With Severe And Profound Mental Retardation., Dee Duncan

LSU Historical Dissertations and Theses

In the literature, self-injurious behavior and aggression are often lumped together collectively as maladaptive behaviors. This study examined the social skills characteristics between persons with self-injurious behavior, aggression and a control group using the Matson Evaluation of Social Skills in Persons with Severe and Profound Retardation (MESSIER). Persons engaging in self-injurious behavior were significantly different from persons engaging in aggression as well as from the control group on five of the six subscales. The self-injury group had lower scores on subscales measuring positive behaviors and higher scores on subscales measuring negative behaviors. As expected for persons engaging in aggression, scores …

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Southern Families And Their Daughters: The Self And The System In Selected Texts By Grau, Gilchrist, Welty, Spencer, And Douglas., Jo K. Galle Jan 1997

Southern Families And Their Daughters: The Self And The System In Selected Texts By Grau, Gilchrist, Welty, Spencer, And Douglas., Jo K. Galle

LSU Historical Dissertations and Theses

In this interdisciplinary study, I apply the materials of family systems theory to the study of five twentieth-century literary texts, each written by a Southern white woman. Arranged in the order they will appear in this study, the five texts are The Keepers of the House (1964) by Shirley Ann Grau; Net of Jewels (1992) by Ellen Gilchrist; The Golden Apples (1949) by Eudora Welty; The Voice at the Back Door (1956) by Elizabeth Spencer; and Can't Quit You, Baby (1988) by Ellen Douglas. In the analysis of these books--all examples of domestic and social realism--I analyze and measure the …

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Biostratigraphic And Paleoenvironmental Significance Of Jurassic Microfossils From Romania., Andrei Tudoran Jan 1997

Biostratigraphic And Paleoenvironmental Significance Of Jurassic Microfossils From Romania., Andrei Tudoran

LSU Historical Dissertations and Theses

Foraminifera and ostracods from eight measured sections and three wells located in Romania (Apuseni Mountains, central Carpathian and foreland units) were analyzed. Major Jurassic microfaunal evolutionary events are recorded and biozonations of regional value, based on assemblage zones, are established for the Toarcian of the Apuseni Mountains and the Oxfordian-Kimmeridgian of the Scythian Platform. Microfauna has been calibrated to ammonite zones in the Bratca and Munteana sections, and the Caraorman West F11/7 well. Criteria such as (1) presence/absence of large benthic foraminifera with complex internal structure, (2) paleobiogeographic affinities of smaller foraminifera and ostracods, and (3) distribution of important lithofacies …

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