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Articles 13471 - 13500 of 15224
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Evaluation Of Some Properties Of Sugarcane Using Four Selected Techniques (Nmr, Nir)., Claudio Bianor Sverzut
Evaluation Of Some Properties Of Sugarcane Using Four Selected Techniques (Nmr, Nir)., Claudio Bianor Sverzut
LSU Historical Dissertations and Theses
A study was undertaken to evaluate new methods for rapid estimation of sugar, fiber, and moisture contents as well as the biomass of sugarcane. The NIR method can analyze the samples for sugar, moisture, fiber, and Pol values in less than one minute. The microwave method can reduce the time necessary to perform sugar and moisture analysis using the press method from 48 hours to a few minutes. Gamma ray transmission can be used to estimate crop yield in the field, and NMR can be used to measure the moisture content of whole stalks of sugarcane if its accuracy is …
The Type A Behavior Pattern And Acth Response To The Stress Of Cardiac Catheterization., Marie Carmen Veitia
The Type A Behavior Pattern And Acth Response To The Stress Of Cardiac Catheterization., Marie Carmen Veitia
LSU Historical Dissertations and Theses
There is substantial evidence to indicate that the Type A Behavior Pattern is associated with an increased risk of coronary heart disease. Recent research has shown that Type As, as compared to Type Bs, demonstrate enhanced biochemical and cardiovascular responses to stressful situations. These findings have led researchers to postulate that physiological reactivity may be one of the mechanisms through which Type A behavior confers coronary risk. The present study was designed to investigate physiological and psychological reactivity in Type A and Type B cardiac patients exposed to a cardiac catheterization. The effects of drugs (i.e., none versus beta-blockers and …
Tolerance, Bioenergetics And Biochemical Composition Of The Blue Crab, Callinectes Sapidus Rathbun, Exposed To The Water-Soluble Fraction Of South Louisiana Crude Oil., Shiao Yu Wang
LSU Historical Dissertations and Theses
The tolerance, bioenergetics, growth, molting frequency and biochemical composition of juvenile blue crabs, Callinectes sapidus, exposed to the water-soluble fraction of South Louisiana crude oil were determined during a 21-d exposure period. Blue crabs were highly tolerant to petroleum hydrocarbons; the LC50 was 3927 ppb on day 21. Rates of energy intake decreased with increasing hydrocarbon concentration. Although energy expenditure rates of crabs exposed to 2504 ppb were not significantly higher than that of control crabs, they were significantly higher than those of crabs exposed to 820 and 1476 ppb. The resulting decrease in scope for growth was thus due …
A History And Analysis Of Selected National Urban League Discourse, 1910-1985., Dennis D. Cali
A History And Analysis Of Selected National Urban League Discourse, 1910-1985., Dennis D. Cali
LSU Historical Dissertations and Theses
This dissertation is a critical analysis of selected annual conference addresses of National Urban League (NUL) executive directors. It may be regarded as a "movement study" inasmuch as it traces the conceptualization of an idea, equality, from 1910 to 1985. Richard Weaver's philosophy, theory, and critical methodology of rhetoric provide the analytical framework by which this study was conducted. Specifically Weaver's hierarchy of arguments, which may be taken as a model of his philosophy and theory, served as this dissertation's research tool. The hierarchy includes argumentation from four perspectives, ranking from ideal to base: genus, similitude, cause-effect, circumstances. The dissertation …
A Quasi-Exclusive Measurement Of Carbon-12 (Carbon-12, 3alpha)X At 2.1 Gev/Nucleon., Jon Maurice Engelage
A Quasi-Exclusive Measurement Of Carbon-12 (Carbon-12, 3alpha)X At 2.1 Gev/Nucleon., Jon Maurice Engelage
LSU Historical Dissertations and Theses
The cross section, (sigma)(('12)C + T (--->) 3(alpha) + X) or (sigma)(3(alpha)), and excitation energy spectrum, d(sigma)(3(alpha))/dE('*), for ('12)C have been measured for 2.1 GeV/nucleon ('12)C using a 0.9(g/cm('2)) target of ('12)C. The d(sigma)(3(alpha))/dE('*) spectrum was found to include excitation energies in excess of 50 MeV. The dissociation of ('12)C into three (3) alpha particles at these excitation energies is evidence for clustering in the ('12)C nucleus.
Response To Failure As Reflected In The Poetry Of G. M. Hopkins, His Contemporaries (Francis Thompson And Lionel Johnson), And The Moderns (William Butler Yeats, Ireland, T. S. Eliot)., Pushpa Naidu Parekh
Response To Failure As Reflected In The Poetry Of G. M. Hopkins, His Contemporaries (Francis Thompson And Lionel Johnson), And The Moderns (William Butler Yeats, Ireland, T. S. Eliot)., Pushpa Naidu Parekh
LSU Historical Dissertations and Theses
The study of the poetic persona's responses to the experience of failure, as expressed in the poetry of G. M. Hopkins, his minor contemporaries (Francis Thompson and Lionel Johnson), and the moderns (particularly Dylan Thomas), actualizes the poet-text-reader interactions in the reading experience. Chapter one concentrates on the Hopkins persona as he responds to his failures in priesthood and poetry writing, the effects upon the reader, the reader's involvement in the outcome of the poem, and the parallels and divergences between Hopkins and the persona. Chapter two studies Hopkins' persona in his struggle to move from human isolation to human …
Sociologists And The Vietnam War: A Historical Document Analysis (Commodification, Post-Industrial)., Robert Earl Sanderson
Sociologists And The Vietnam War: A Historical Document Analysis (Commodification, Post-Industrial)., Robert Earl Sanderson
LSU Historical Dissertations and Theses
Textbooks are important representative statements of certified and legitimated knowledge within an academic discipline, and the manner in which introductory sociology textbooks assess society reflect the power and sophistication of theories in discerning social patterns and structures. That the pivotal historical event of the Vietnam War and its implications for contemporary American social institutions was virtually omitted in our sample of one hundred-twenty textbooks raises critical issues for sociology. Content analysis of Vietnam War era textbooks (1954-1975) revealed 75% of the sample, divided among four major research orienting paradigms extant in sociology, ignored mention of the war and only the …
The Song Cycles Of Ned Rorem: A Technical Survey., Leon Austin Henry Jr
The Song Cycles Of Ned Rorem: A Technical Survey., Leon Austin Henry Jr
LSU Historical Dissertations and Theses
This monograph includes a brief history of the development of the song cycle genre in general, Ned Rorem's definition of the genre in particular, and a brief history of Ned Rorem's contributions to song cycles. Each of Ned Rorem's published song cycles has been inspected for the following: poet(s) and literary theme(s); excerptability of individual songs; difficulty of individual songs (rated easy, moderately easy, or difficult); accompanimental instrument(s); and apparent cyclic interval(s), motive(s), or melody(ies). These data are compiled in a concise form for each song cycle and is followed by explanations of the determination of excerptability and difficulty, and …
Models For The Study Of Intramolecular Interactions: Preparation, Structure And Reactivity Of 2-(2'-Acyloxyphenylethynyl)Benzoic Acids., Michael Allen Oliver
Models For The Study Of Intramolecular Interactions: Preparation, Structure And Reactivity Of 2-(2'-Acyloxyphenylethynyl)Benzoic Acids., Michael Allen Oliver
LSU Historical Dissertations and Theses
The hypothesis concerning orientational effects of carboxylate in general-base catalysis is discussed, and the first models that allow proton transfer to the syn lone-pair of the carboxylate during intramolecular general-base catalysis are designed, prepared, and tested. These models use a carbon backbone of two aryl groups linked by a two carbon bridge. The syntheses of 2-(2-hydroxyphenylethynyl)benzoic acid (24) and derivatives used in these studies are described. These derivatives were also needed to evaluate the ethynyl group as the bridge linking the aryls and to aid in the design of more complex models. The hydrolysis of the dichloroacetate ester (26) is …
Spectroscopic Studies Of The Metal Centers In Hydrogenases And Carbon Monoxide Dehydrogenase (Nickel)., Isabel Cristina Zambrano
Spectroscopic Studies Of The Metal Centers In Hydrogenases And Carbon Monoxide Dehydrogenase (Nickel)., Isabel Cristina Zambrano
LSU Historical Dissertations and Theses
The biological activation of hydrogen is catalyzed by hydrogenases. An understanding of the mechanism by which hydrogenases act requires the elucidation of the nature and type of metal centers present in the enzymes. Room temperature UV-visible absorption, low temperature magnetic circular dichroism and electron paramagnetic resonance spectroscopies have been used to characterize the electronic and magnetic properties of the iron-sulfur and nickel centers in hydrogenases from Clostridium pasteurianum, Methanobacterium thermoautotrophicum, and Desulfovibrio gigas. In addition, another Ni-containing enzyme, carbon monoxide dehydrogenase from Clostridium thermoaceticum, and D. gigas Ni-substituted rubredoxin were investigated. The results provide evidence for the presence of conventional …
Spectroscopy And Photochromism Of Triphenylformazan And Its Derivatives., Claudina Veas-Arancibia
Spectroscopy And Photochromism Of Triphenylformazan And Its Derivatives., Claudina Veas-Arancibia
LSU Historical Dissertations and Theses
The spectroscopic and photochromic characteristics of triphenylformazan and its derivatives were investigated. These derivatives were formed by adding substituents to the phenyl group attached to the carbon atom of the formazan ring or by replacing this phenyl group with a naphthyl group. Studies of the effect of the concentration, substituent, solvent and temperature on the absorption spectra of triphenylformazan were made. Molecular mechanics calculations were performed to generate two different geometries of triphenylformazan that were used in CNDO calculations to assign the electronic transitions observed in the absorption spectra. In contradiction to what was stated in earlier investigations, the results …
Model Reduction Of Stochastic And Deterministic Continuous Time Linear Systems (Lypunov Equation, Schawrz Approximation)., Khier Benmahammed
Model Reduction Of Stochastic And Deterministic Continuous Time Linear Systems (Lypunov Equation, Schawrz Approximation)., Khier Benmahammed
LSU Historical Dissertations and Theses
Two new approaches for reducing the order of large scale continuous systems are presented. The first approach is a modified version of the aggregation technique. It uses the matching properties of the steady state output covariance and the Markov parameters of the high order system to those of the r('th) order model. This approach also uses a new algorithm derived for the computation of the controllability and observability Grammians, to produce controllable, observable and stable low order models. These is no unique method available for evaluating the aggregation matrix or the matrix relating the system state vector to the model …
Influence Strategies In Husband-Wife Purchase Decision-Making., Ellen Ruth Foxman
Influence Strategies In Husband-Wife Purchase Decision-Making., Ellen Ruth Foxman
LSU Historical Dissertations and Theses
The purpose of this study was to investigate interpersonal influence as an explanatory variable in husband-wife decision making. Self-report and observational measures of influence were compared, and the decision interaction process was also examined to detect characteristic patterns of influence. Sixty married couples were interviewed in their homes, and the entire interview was tape recorded. Couples were screened regarding purchases that they had recently made or were considering, for the purpose of identifying two product decisions that they considered (1) important, (2) salient, and (3) a source of disagreement. Couples engaged in role-played decision making with respect to the two …
An Analysis Of Mercury Accumulation Within The Upper Estuarine Food Chain Of Lake Charles, Louisiana, Jeffrey W. Tingle
An Analysis Of Mercury Accumulation Within The Upper Estuarine Food Chain Of Lake Charles, Louisiana, Jeffrey W. Tingle
LSU Historical Dissertations and Theses
Analysis of the level of mercury contamination within the sediments and fish associated food chain of Lake Charles, Louisiana, an area located within the Calcasieu River system, were assessed. Sediment levels were found to be slightly elevated (0.33µg Hg/g) from natural background levels (0.20 µg Hg/g). Levels found within the fish of the region were also found to be slightly elevated (0.287 µg Hg/g) from natural levels. This is below the hazardous level designated by the Food and Drug Administration (0.50 µg Hg/g). The statistical analysis of the pathway of mercury through a food chain composed of eight different species …
Louisiana Agriculture Magazine, Fall 1985, Lsu Agricultural Experiment Station
Louisiana Agriculture Magazine, Fall 1985, Lsu Agricultural Experiment Station
Louisiana Agriculture
No abstract provided.
Locus-Specific Detection Of Hla-Dq And -Dr Antigens By Antibodies Against Synthetic N-Terminal Octapeptides Of The Β Chain, Thomas Deufel, Anne Grove, Hans Kofod, Åke Lernmark
Locus-Specific Detection Of Hla-Dq And -Dr Antigens By Antibodies Against Synthetic N-Terminal Octapeptides Of The Β Chain, Thomas Deufel, Anne Grove, Hans Kofod, Åke Lernmark
Faculty Publications
Antibodies against synthetic peptides representing the class-II antigen HLA-DR and -DQ β chain N-terminal sequences were prepared in rabbits. The two octapeptides only share two amino acids and enzyme-linked immuno-assays showed the antisera only to bind to its own antigen. Both peptide antisera detected a 29 kDa component in immunoblots of Raji and AL-34 cell plasma membrane proteins separated by SDS gel electrophoresis. The binding of either N-terminal peptide antiserum was selectively inhibited only by the peptide used as antigen. Indirect immunofluorescence.analysis by flow cytofluorometry showed specific surface immunofluorescence in 1:100-1:1000 dilutions in lymphoblastoid and blood mononucleated cells. In the …
Assessment Of Dairy Product Quality Utilizing Bacterial Enumeration And Metabolite Detection., Jay Russell Bishop
Assessment Of Dairy Product Quality Utilizing Bacterial Enumeration And Metabolite Detection., Jay Russell Bishop
LSU Historical Dissertations and Theses
A study was conducted to investigate the use of bacterial numbers and metabolites as estimators of the potential shelf-life of perishable dairy products, i.e., whole milk, skim milk and cottage cheese. The study was conducted in three phases. In the first phase, a method of impedance detection was performed at two incubation temperatures (18(DEGREES)C and 21(DEGREES)C), and its ability to estimate shelf-life of 100 commercially purchased milk samples compared to standard plate count (SPC), psychrotrophic bacteria count (PBC), modified psychrotrophic bacteria count (mPBC) and Mosely keeping quality test (MSPC). MSPC appeared to possess an adequate relationship to shelf-life (R = …
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 …
The Effects Of Performance Standards On Behavior Patterns And Motor Skill Achievement In Children (Goals, Time-On-Task)., Rosaland Veatrice Edwards
The Effects Of Performance Standards On Behavior Patterns And Motor Skill Achievement In Children (Goals, Time-On-Task)., Rosaland Veatrice Edwards
LSU Historical Dissertations and Theses
The effect of individual performance standards on the relationship between selected process variables and achievement for students in elementary physical education classes was investigated. The subjects were 78 fourth grade and 80 fifth grade students from eight classes in two elementary schools. Two fourth and fifth grades received standards and two fourth and fifth grades did not. A one week experimental teaching unit was used. A Solomon 4-group design was used in an effort to determine if there was a pretest effect. The data were analyzed in a Treatment (standard-no standard) x Pre (pre-no pretest) x sex (male-female) x grade …
Metal Ion, Protein, Phytic Acid Interactions., Elaine Thompson Champagne
Metal Ion, Protein, Phytic Acid Interactions., Elaine Thompson Champagne
LSU Historical Dissertations and Theses
Insight into the mineral, protein, phytate relationships in rice bran was gained by examining the solubility behavior of these components. Solubility profiles of the phosphorus and nitrogen components as a function of pH did not correspond, except in the pH 1.0-2.0 range. This is evidence that association between protein and phytate only occurred in this low pH range. Potassium, magnesium, and calcium solubilities as a function of pH corresponded to those of the phytic acid salts of these minerals. Soluble magnesium and potassium phytates were isolated on Sephadex G-25-50 and identified by ICP, confirming their presence in rice bran. 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 …
The Effect Of Metacognitive Strategy Training On Critical Reading Ability., Jacqueline Means Parson
The Effect Of Metacognitive Strategy Training On Critical Reading Ability., Jacqueline Means Parson
LSU Historical Dissertations and Theses
The ability to read materially critically is recognized as a goal of educators. The purpose of this study was to investigate the influence of training metacognitive strategies on critical reading ability. Critical reading was defined as the ability to judge or evaluate written materials and to compare them against some norm or standard. Metacognitive strategies encourage a conscious awareness of and/or control over one's own mental processes. A review of literature indicated that past researchers had considered critical reading as a distinct skill area, but more recently, educators have begun to recognize it as a part of the overall comprehension …
Student Practice And Selected Teacher Behaviors In Elementary Physical Education (Effectiveness, Experimental Unit, Process-Product Study)., Madge Holden Ashy
Student Practice And Selected Teacher Behaviors In Elementary Physical Education (Effectiveness, Experimental Unit, Process-Product Study)., Madge Holden Ashy
LSU Historical Dissertations and Theses
Eight preservice physical education teachers participated in this study to examine the effects of correct practice attempts, total practice attempts, and selected teacher behaviors on student achievement in a novel motor skill. Each teacher taught two 20-min lessons to 10 fourth graders. Four more and four less effective teachers were identified by cluster analysis using student posttest scores as the criterion. Eight teacher behaviors were observed and measured, four on frequency (cues, demonstration, knowledge of performance, encouragement) and four on duration (specific observation, general observation, management, instruction). Comparisons were made between the more and less effective teacher groups in two …
Secondary Memory Functioning In Good And Poor Readers (Interference)., Elizabeth B. Williford
Secondary Memory Functioning In Good And Poor Readers (Interference)., Elizabeth B. Williford
LSU Historical Dissertations and Theses
This research compared the short-term memory deficit and the verbal ability deficiency theories of reading disability by examining reaction time performance of good readers and inferior readers in both primary and secondary memory tasks, using a combination of the Sternberg memory scanning paradigm and the Brown-Peterson distractor tasks. One hundred ninety-two Louisiana State University students from the psychology and remedial reading departments were randomly assigned to one of eight experimental groups. Subjects received test material of either four or two item memory sets. The 48 test trials consisted of three trials from each of 16 different categories, with trials grouped …
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 …
The Relation Of Knowledge Development To Children's Basketball Performance., Karen Elizabeth French
The Relation Of Knowledge Development To Children's Basketball Performance., Karen Elizabeth French
LSU Historical Dissertations and Theses
The purpose of this paper was to examine the relation of sport specific knowledge to the development of skilled basketball performance in children. Three experiments were conducted. The first experiment established the reliability and validity of instruments used to measure basketball knowledge, dribbling skill, shooting skill and individual components of offensive basketball performance--control, decisions, and execution. The second experiment compared expert and novice basketball players in two age leagues, an 8- to 10-year-old league and an 11- to 12-year-old league, on the individual components of performance and on measures of basketball knowledge, dribbling skill, and shooting skill. The cognitive decision …
1. Determination Of Manganese In Biological Samples. 2. Studies Of The Effects Of Aluminum And Decaying Vegetation On Aquatic Life Exposed To Acidity., Paula Mayard Deano
1. Determination Of Manganese In Biological Samples. 2. Studies Of The Effects Of Aluminum And Decaying Vegetation On Aquatic Life Exposed To Acidity., Paula Mayard Deano
LSU Historical Dissertations and Theses
Part One. Determination of Manganese in Sweat and Urine. A method has been developed for the direct determination of manganese in perspiration using graphite furnace atomic absorption spectroscopy. This method was applied to a study of manganese concentrations in perspiration and urine samples. Concentrations of manganese found in sweat were significantly higher than the concentrations in urine. Determination of the chemical form of manganese in sweat was attempted. Analysis of sweat using anodic stripping voltammetry strongly indicated that the manganese was organically bound. In addition the potential of interfacing liquid chromatography and inductively coupled plasma emission spectroscopy for the speciation …
Growth, Efficiency And Physiological Changes Of Swine As Affected By Environmental Temperature, Energy Level And Lysine Source And Level (Fat, Season)., Alberto Ramon Ojeda
Growth, Efficiency And Physiological Changes Of Swine As Affected By Environmental Temperature, Energy Level And Lysine Source And Level (Fat, Season)., Alberto Ramon Ojeda
LSU Historical Dissertations and Theses
Two consecutive summer and winter trials involving low and high-heat increment diets were fed to growing-finishing swine, and three trials evaluating crystalline lysine utilization were conducted during the starting phase of growth. Dehydrated alfalfa meal and vegetable oil in factorial combination were fed during the winter months. Crystalline lysine and vegetable oil, also in factorial combination, were fed during the summer months. In the lysine utilization trials, crystalline or protein-bound lysine were each fed at three levels. Response criteria evaluated were rats and efficiency of gain, serum T(,3), T(,4) and cholesterol level in the winter and summer trials; and rate …
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 …