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Articles 8791 - 8820 of 9858
Full-Text Articles in Entire DC Network
Scs 96: Generators And Weights Of Completely Distributive Lattices, Marcel Erné
Scs 96: Generators And Weights Of Completely Distributive Lattices, Marcel Erné
Seminar on Continuity in Semilattices
No abstract provided.
Scs 95: Fixed Point Constructions For Standard Completions, Marcel Erné
Scs 95: Fixed Point Constructions For Standard Completions, Marcel Erné
Seminar on Continuity in Semilattices
No abstract provided.
Distributional Analysis For Discontinuous Fields, R. Estrada, R. P. Kanwal
Distributional Analysis For Discontinuous Fields, R. Estrada, R. P. Kanwal
Faculty Publications
The jump conditions that hold across singular surfaces for the fields having step function discontinuities do not, in general, apply if these surfaces themselves carry concentrated fields. In this note, the general situation when the surfaces of discontinuity carry multilayers and deform as they propagate is discussed. Formulas are presented for the first and second derivatives for these multilayers. © 1985.
The Interaction Of Conceptual Tempo And Modeling On Motor Performance (Learning Style)., Shirley Devard Brown
The Interaction Of Conceptual Tempo And Modeling On Motor Performance (Learning Style)., Shirley Devard Brown
LSU Historical Dissertations and Theses
This experiment was designed to examine the effects of conceptual tempo and modeling on performance of a serial motor task. There were 48 subjects, 10- and 11-years old males and females, classified as impulsive or reflective. Subjects were randomly assigned to one of three modeling groups or a control group. The modeling strategies included: silent-model, verbal-model and verbal-model with self-instruction. The task was a motor skill obstacle course in which both speed and errors were scored. Data were analyzed by a 2 x 4 (Cognitive Style x Model Type) MANOVA with the number of trials to criterion, the average number …
Some Results About Value Sets Of Quadratic Forms Over Fields., David Litton Foreman
Some Results About Value Sets Of Quadratic Forms Over Fields., David Litton Foreman
LSU Historical Dissertations and Theses
In 1979, Solow defined the square class invariant of a quadratic form q over a field F to be a function from the square classes of F into the integers. For each square class of F, this function indicates the maximum number of coefficients in all diagonalized quadratic forms equivalent to q that lie in that square class. The intent of Chapter I is to determine the fields over which the square class invariant classifies quadratic forms. It will be proved that if the level of the field is at most two and if the square class invariant classifies the …
Molecular Studies Of Thamnophiine Snakes., Robin Lawson
Molecular Studies Of Thamnophiine Snakes., Robin Lawson
LSU Historical Dissertations and Theses
Variation in alleles at gene loci encoding proteins was used to determine zoogeographic and evolutionary differentiation in thamnophiine snakes. Differentiation among populations within a species, among species within a genus, and among genera was investigated. In the southern banded water snake, Nerodia fasciata, analysis by F-statistics and genetic distances of allele frequencies indicated that extensive differentiation has occurred between those forms adapted to a saltwater environment (N. f. clarkii and N. f. compressicauda) and those adapted to a freshwater environment (N. f. fasciata, N. f. confluens, and N. f. pictiventris). Habitat disturbance is imputed as the causal agent in the …
Symptoms In Relationship To Life Events (Stress, Social Supports, Life Experiences Survey, I-E Locus-Of-Control, Mmpi)., Karen Rinardo Speier
Symptoms In Relationship To Life Events (Stress, Social Supports, Life Experiences Survey, I-E Locus-Of-Control, Mmpi)., Karen Rinardo Speier
LSU Historical Dissertations and Theses
Although there is considerable evidence to support the contributions of life event stress to subsequent psychological and physical symptoms, the correlations reported between obtained stress scores and illness measurements have been low. This study was undertaken to improve prediction of physical and psychological complaints subsequent to life event stress by more comprehensive measurement of life event characteristics and by assessment of locus of control, social supports, and somatization as moderating variables in the life stress-illness process. An overview of psychosomatic medicine was given and the relevant life event research was reviewed. Fifty undergraduate students completed the experimental version of the …
Large Strain Theory As Applied To Penetration Mechanism In Soils (Plasticity)., Panagiotis Demetrios Kiousis
Large Strain Theory As Applied To Penetration Mechanism In Soils (Plasticity)., Panagiotis Demetrios Kiousis
LSU Historical Dissertations and Theses
A theoretical analysis of a Quasistatic Cone Penetrometer Test (QCPT) is presented in this work. A large strain, elasto-plastic formulation is developed for this purpose and is implemented into a finite element method program. The basic relations of the theory are developed in an Eulerian reference frame, subsequently transformed to a Lagrangian coordinate system, and through simple time differentiation, the necessary rate equations are derived. Both isotropic and kinematic hardening of the Ziegler type are introduced in this theory. The plasticity models implemented are the extended von Mises and the cap model by DiMaggio and Sandler. The pore water pressures …
Spaces Of Order Arcs In Hyperspaces Of Subcontinua., Mark James Lynch
Spaces Of Order Arcs In Hyperspaces Of Subcontinua., Mark James Lynch
LSU Historical Dissertations and Theses
Eberhart, Nadler, and Nowell asked for which Peano continua X is it true that (GAMMA)(X), the space of order arcs in C(X), is homeomorphic to the Hilbert cube ? They answered the question affirmatively when X contains no free arcs. In Chapter IV, we characterize those 1-dimensional ANR('s) X for which (GAMMA)(X) is homeomorphic to . In Chapters I and II, we develop techniques for analyzing this problem and, in Chapter III, we also apply these techniques in answering some open questions concerning Whitney levels in C(X).
Seedling Johnsongrass Growth In Sugarcane As Affected By Time Of Emergence (Agroecology, Sorha, Weed Potential)., Joseph Floyd Yoder Iii
Seedling Johnsongrass Growth In Sugarcane As Affected By Time Of Emergence (Agroecology, Sorha, Weed Potential)., Joseph Floyd Yoder Iii
LSU Historical Dissertations and Theses
Field studies were conducted to document seedling johnsongrass Sorghum halepense (L.) Pers. growth as influenced by date of emergence in sugarcane (Saccharum interspecific hybrids, cultivar 'CP 65-357'). The crop was in the plant cane year of growth in 1982 and 1983, and the first stubble year in 1984. The experiments were randomized complete block designs. Johnsongrass seedling emergence days were approximately three weeks apart, from April or early May through mid-July for a total of five emergence days each year. There were 36, 60, and 72 replicates for emergence days numbered 1 to 3, 4, and 5, respectively, over three …
I. Toward The Quantum Limit In Gravitational Wave Detectors. Ii. Several Theoretical Problems In Condensed Matter Physics., Bu-Xin Xu
LSU Historical Dissertations and Theses
Part I. We analyze a gravity wave detector consisting of a Weber type resonant antenna, an inductive transducer and a dc SQUID coupling system. We derive the complete set of equations of motion for the system and discuss their implications and solutions in detail. The results obtained are applied to the LSU gravity wave detector, and the optimum system parameters are calculated. We show that it is possible to approach quantum limited sensitivity for the detector if these optimum system parameters and matching conditions are properly satisfied. In the final chapter we present our preliminary experimental results. We have built …
The Reliability Of Psychophysiological Assessment: A Comparative Analysis Of Two Mental And Two Physical Stressors (Test-Retest Reliability, Physiological Reactivity, Cold Pressor, Blood Pressure, Heart Rate)., Michael E. Faulstich
LSU Historical Dissertations and Theses
Extensive research has been conducted assessing psychophysiological reactivity to experimental stressors in various populations. However, there is a paucity of empirical investigations concerning the test-retest reliability of these experimental stressors. Establishment of the relative reliability of specific stressor procedures is important so that results can be compared over time and across studies. The purpose of this investigation was to compare test-retest reliability of two mental stressors (i.e. Quiz Electrocardiogram, mental arithmetic) and two physical stressors (i.e. cold pressor, isometric challenge). These stressors were presented in a counterbalanced fashion to forty-eight undergraduate and graduate students who returned two weeks later for …
Development Of A Computer-Assisted Instruction Courseware Package In Statistics And A Comparative Analysis Of Three Management Strategies For This Courseware., Preston Dinkins
LSU Historical Dissertations and Theses
The purpose of this study was to develop and evaluate a tutorial computer-assisted instruction (CAI) lesson teaching the normal distribution and standard scores. Instruction on the normal curve, and unit-normal curve, z-scores, areas under the normal curve, and standard scores was given in this study. This CAI courseware was created in order to teach or review these concepts to graduate students in education. An evaluation of this CAI lesson was conducted. It consisted of a small scale pilot test, and a 2 x 3 factorial design experiment. The pilot test study was conducted so that reaction data to this software …
An Engineering Approach To Model-Order Reduction And Its Application To Controller Design., Alexius Ogbusua Kalu
An Engineering Approach To Model-Order Reduction And Its Application To Controller Design., Alexius Ogbusua Kalu
LSU Historical Dissertations and Theses
A new method of approximating a high-order system by a lower-order model in the frequency domain is developed. A reduced-order model of a transfer function obtained by the new method is compared with a reduced-order model obtained by another existing method to illustrate the power of the technique. Furthermore the approximant constructed by this new method is used to design a control system, which is applicable to the plant, to show its usefulness. The thesis also suggests some mathematical criteria for selecting the order of the approximant. This technique is particularly attractive because of its simplicity and versatility. Furthermore, it …
Production And Nitrogen Dynamics Of A Vallisneria Americana Grass Bed In Lake Pontchartrain, Louisiana (Nitrogen Cycle, Modeling, Seagrasses, Decomposition Phenology, Vallisneria-Celery Grass-Eelgrass, Environmental Factors)., Diana Lee Steller
LSU Historical Dissertations and Theses
Vallisneria americana grass beds of Lake Pontchartrain contribute approximately 200 g dry weight/m('2)/yr primary production, a continuous release of detrital material, and rapid nutrient recycling. A harvest method was used to estimate production. The addition of litterfall to harvest production raised annual production estimates by up to 28%. When litterfall was corrected for decomposition, the production estimates were raised by up to 85% over harvest estimates alone. Litterfall and decomposition increased toward shore and occurred throughout the year providing a continuous supply of energy and nutrients. Grass bed production varied along the coastline and was greatest at mid-depths. Values of …
Aqueous Phase Oxidation Of Organics (Wet-Air, Vapor-Liquid Equilibrium, Synergism, Free Radical, Xylene, Phenol)., Richard Scott Willms
Aqueous Phase Oxidation Of Organics (Wet-Air, Vapor-Liquid Equilibrium, Synergism, Free Radical, Xylene, Phenol)., Richard Scott Willms
LSU Historical Dissertations and Theses
Fundamental disappearance kinetics parameters have been obtained for four compounds individually subjected to aqueous phase oxidation. These four compounds are m-xylene, phenol, tetrachloroethylene, and malathion. Concentration histories were obtained using a one liter "sampled-batch" reactor. Reaction conditions ranged from 114-290 (DEGREES)C and 1000-2500 psi air. A kinetics model incorporating vapor-liquid equilibrium effects was developed and used to determine reaction rate constants. The reactions were found to be first order in organic and 1/2 order in oxygen. Induction periods were observed for m-xylene and phenol. The durations of these periods were found to be inversely proportional to oxygen concentration. Activation energies …
On K(,2) Of Rings Of Integers Of Totally Real Number Fields (Birch-Tate, Steinberg, Class Number, Symbol, Zeta-Function)., Karl Friedrich Hettling
On K(,2) Of Rings Of Integers Of Totally Real Number Fields (Birch-Tate, Steinberg, Class Number, Symbol, Zeta-Function)., Karl Friedrich Hettling
LSU Historical Dissertations and Theses
We study the finite abelian groups K(,2)(o), where o denotes the ring of integers of a totally real number field. As a major tool we employ the Birch-Tate conjecture which states that the order of K(,2)(o) can be computed via the Dedekind zeta-function. The odd part of this conjecture has been proved for abelian fields as a consequence of the Mazur-Wiles work on the "Main conjecture". After the preliminaries of chapter 1, we proceed in chapter 2 by deriving a formula for (zeta)(,F)(-1), where F denotes a totally real abelian number field. Using this formula we prove the congruence L …
Control, Dynamics, And Kinetics Of Gas Exchange At The Onset And Offset Of Treadmill Exercise In The Pony (Oxygen Deficit, Debt, Ventilatory, Isocapric Hyperprea, Blood)., Scotty Kline Powers
Control, Dynamics, And Kinetics Of Gas Exchange At The Onset And Offset Of Treadmill Exercise In The Pony (Oxygen Deficit, Debt, Ventilatory, Isocapric Hyperprea, Blood)., Scotty Kline Powers
LSU Historical Dissertations and Theses
The purpose of experiment one was to develop and validate an open circuit technique (OCT) employing a mixing-chamber for measurement of gas exchange during non-steady-state exercise in humans and ponies. Serial measurements of oxygen uptake ((')VO(,2)) using human subjects and ponies were made during rest to exercise transitions using the OCT incorporating a time delay to match mixed expired gas concentrations with the appropriate ventilatory volume. Oxygen uptake calculated by the OCT did not differ significantly (P > 0.05) from (')VO(,2) obtained by Douglas bag procedures. These data demonstrate that an OCT analysis system is a sensitive means of (')VO(,2) measurement …
A Rhetorical Analysis Of The Political Preaching Of The Reverend Jerry Falwell: The Moral Majority Sermons, 1979 (Electric Church, Demagogue)., Vernon Oliver Ray
A Rhetorical Analysis Of The Political Preaching Of The Reverend Jerry Falwell: The Moral Majority Sermons, 1979 (Electric Church, Demagogue)., Vernon Oliver Ray
LSU Historical Dissertations and Theses
Jerry Falwell has risen in recent years from near obscurity as a Baptist pastor in Lynchburg, Virginia, to national celebrity as the founder and President of Moral Majority, Inc., the front-line political action organization of the new Religious Right. This study discusses (1) Falwell's background and speaker preparation, (2) the historical setting surrounding the recent resurgence of Fundamentalism and its political involvement, (3) Falwell's audiences and occasions, (4) his use of evidence and lines of argument, (5) his style and delivery, and (6) his effectiveness. The study is based on a series of sermons delivered on five consecutive Sundays beginning …
The Impact Of Individual Species And Complexes Of Pest Arthropod Species On Soybean Grown On Various Row Spacings (Insect Pest Complexes, Non-Conventional Row Spacing)., Jaime Yanes Jr
LSU Historical Dissertations and Theses
During 1982 and 1983, selective soil and foliar insecticides were applied to soybean, Glycine max (L.) Merrill, planted on narrow (51 cm) and wide (76 cm) row spacings to manipulate soybean insects. Individual species and complexes of arthropod species were manipulated in plots to determine the effects of subterranean and above-ground insects on soybean growth and yield potential. Selective insecticides used in a selective manner proved to be an effective tool for studying insect pest complexes. Sub-threshold levels of individual pest species, in combination, had a significant negative impact on yield. In addition, in 1982, the plots in which soybean …
Sara Lowrey: Speech Teacher (Oral Interpretation, Texas)., Jo Ann Bolin Shields
Sara Lowrey: Speech Teacher (Oral Interpretation, Texas)., Jo Ann Bolin Shields
LSU Historical Dissertations and Theses
"Everyone talks about education. I try to do something about it." These words of Sara Lowrey expressed her primary goal: to prepare her students for the future. This study traces the career of Lowrey through her years at Baylor University and Furman University and delineates her varied activities both in and out of the classroom. In 1923 Lowrey became Chairman of the Department of Public Discourse at Baylor. A fledgling program, the department grew and matured into a respected organization under her able leadership. She instituted programs of study in oral interpretation, radio, and speech correction, spearheaded a radio project …
Strategies For The Reduction And Interpretation Of Multicomponent Spectral Data., Isiah M. Warner, S. L. Neal, T. M. Rossi
Strategies For The Reduction And Interpretation Of Multicomponent Spectral Data., Isiah M. Warner, S. L. Neal, T. M. Rossi
Faculty Publications
No abstract provided.
Inverse Spectral Modeling Of Geopotential Fields Over Sedimentary Basins., Michael Terry Angelich
Inverse Spectral Modeling Of Geopotential Fields Over Sedimentary Basins., Michael Terry Angelich
LSU Historical Dissertations and Theses
Interpretation of geopotential data using inverse spectral modeling techniques eliminates the ambiguous results produced by the standard forward-modeling approach. However, applying the spectral modeling procedures by hand is time-consuming and lacks precision. This study expands on current spectral analysis techniques by adding least-squares statistical rigor to the fitting of the chosen model. Automating the model fitting procedure allows an investigator to examine quickly many overlapping sections (windows) of mapped data. Successive overlapping of neighboring windows suggests a correlation between the ensemble-average depth solutions unique to each window is possible. This technique was shown to be especially useful in Louisiana and …
T0-Spaces And Pointwise Convergence, Jimmie D. Lawson
T0-Spaces And Pointwise Convergence, Jimmie D. Lawson
Faculty Publications
The purpose of this paper is to give several different characterizations of those T0-spaces E with the property that if F:X × E → Y is separately continuous, then it is jointly continuous. One such is that the lattice 0(E) of open sets of E be a hypercontinuous lattice (i.e. the interval topology on 0(E) is Hausdorff). If E is a sober space, then E must be a quasicontinuous poset endowed with the Scott topology. © 1985.
The Pointwise-Local-Global Principle For Solutions Of Generic Linear Equations, William A. Adkins
The Pointwise-Local-Global Principle For Solutions Of Generic Linear Equations, William A. Adkins
Faculty Publications
The problem studied in this paper is to determine some conditions on a matrix A over a ring R which will insure that the matrix equation Au = f is solvable over R if it is solvable over the residue field {A figure is presented}({A figure is presented}) for every {A figure is presented} ∈ Spec R. If R is a regular local ring (containing a field), a polynomial ring over an algebraically close field, or the ring of holomorphic functions on a Stein manifold, then a sufficient condition on A for pointwise solvability to imply global solvability is that …
Lsu General Catalog 1985-1986, Louisiana State University And Agricultural And Mechanical College
Lsu General Catalog 1985-1986, Louisiana State University And Agricultural And Mechanical College
LSU General Catalog
The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.
Studies Of Grain Boundary Structure And Annealing Behavior In Nickel Using Transmission Electron Microscopy (Tem, Dislocation)., An-Chich Chou Han
Studies Of Grain Boundary Structure And Annealing Behavior In Nickel Using Transmission Electron Microscopy (Tem, Dislocation)., An-Chich Chou Han
LSU Historical Dissertations and Theses
Transmission electron microscopy has been used to study grain boundary structure and dislocation reactions in annealed pure nickel sheets. In slightly annealed nickel, the dislocation content and distribution in grain boundaries were found to be random. After annealing at 800(DEGREES)C, a temperature within the recovery and recrystallization stage, the majority of grain boundaries contained periodic arrays of dislocations. The hexagonal dislocation networks with Burgers vectors of the type of a/6 were found in a large number of twin boundaries. The origin and the formation mechanisms of this configuration are discussed. The incorporation of absorbed lattice dislocations in the boundary during …
Raman Microprobe Determination Of Local Crystal Orientation In Laser Annealed Silicon, J. B. Hopkins, L. A. Farrow, G. J. Fisanick
Raman Microprobe Determination Of Local Crystal Orientation In Laser Annealed Silicon, J. B. Hopkins, L. A. Farrow, G. J. Fisanick
Faculty Publications
In this letter we discuss the application of polarization selective Raman microprobe spectroscopy to the detailed, nondestructive analysis of the local crystal orientation of a polycrystalline silicon sample grown over SiO 2 pads and laser annealed. Intensity measurements taken as a function of input polarization angle are fit to an expression derived from the Raman scattering selection rules to calculate the angles by which the crystal structure is twisted within the original substrate plane, as well as the degree of tipping of the crystal plane away from the plane of the Si substrate.
Lumières, Fall 1984, Louisiana State University And Agricultural & Mechanical College
Lumières, Fall 1984, Louisiana State University And Agricultural & Mechanical College
Friends of the LSU Libraries
The bi-annual newsletters from the Friends of the Library contain information about upcoming and recent events, descriptions of new collections, a list of members, and occasional obituaries, which inform members of the news and needs of the LSU Libraries.
Louisiana Agriculture Magazine, Fall 1984, Lsu Agricultural Experiment Station
Louisiana Agriculture Magazine, Fall 1984, Lsu Agricultural Experiment Station
Louisiana Agriculture
No abstract provided.