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LSU Historical Dissertations and Theses

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Alignment System For X-Ray Lithography., Hao Zhou Jan 1994

Alignment System For X-Ray Lithography., Hao Zhou

LSU Historical Dissertations and Theses

Among the various contenders for VLSI lithography below 0.1 $\mu$m, proximity x-ray printing is the most promising one and has been investigated for many years. It will require overlay accuracy far below 100 nm, 3$\sigma$, typical of today's systems. In addition, it should use wafer marks that permit planar resist flow, so their apparent position is not distorted. We have demonstrated an alignment system that uses a linear zone plate on the mask to focus laser light into a line on the wafer. The wafer mark is the boundary between two adjacent fine pitch gratings. These gratings diffract the light …

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Does Caffeine Have An Ergogenic Benefit On Low-Intensity Exercise Performance In A Warm Environment?, Barry Steven Cohen Jan 1994

Does Caffeine Have An Ergogenic Benefit On Low-Intensity Exercise Performance In A Warm Environment?, Barry Steven Cohen

LSU Historical Dissertations and Theses

The effect of caffeine ingestion upon endurance performance while walking at 45% VO$\sb{2\rm max}$ in a warm environment (27$\sp\circ$C, 48% rh) was examined. Eight moderately trained subjects (aged 21-25 years) walked on a treadmill on 4 separate occasions until exhaustion under 4 different treatment regimens. Two of the treatments consisted of caffeine-containing beverages, while the other 2 included non-caffeine-containing beverages. One hour prior to the start of exercise, the subjects consumed a GatorPro drink with either 5 mg/kg of caffeine, if caffeine was the randomized drink, or placebo (flour). At the start of exercise and every half hour until exhaustion, …

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William Bolcom's "Twelve New Etudes For Piano"., Henry Scott Jones Jan 1994

William Bolcom's "Twelve New Etudes For Piano"., Henry Scott Jones

LSU Historical Dissertations and Theses

This study examines William Bolcom's Twelve New Etudes for Piano as a contribution to the evolution of the concert etude for piano solo, describing them mainly from the point of view of technical requirements. Chapter One charts the course of the etude for piano solo in the twentieth century. Chapter Two looks at Bolcom's Etudes in detail, addressing the following: style and format, passage-work, leaps, chords, trills and tremolos, counterpoint, cross-rhythms, stretches, dynamics and tone, pedaling, and new techniques. In the course of the description, several areas are pointed out in which Bolcom has done something new or unusual within …

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Error Correction In Second-Year Students' Compositions: A Comparative Study Of Native And Non-Native Speakers/Instructors Of French., Catherine Annie Jolivet Jan 1994

Error Correction In Second-Year Students' Compositions: A Comparative Study Of Native And Non-Native Speakers/Instructors Of French., Catherine Annie Jolivet

LSU Historical Dissertations and Theses

The purpose of this dissertation was to determine whether or not there are differences between native and non-native speakers/instructors of French when they correct second year students' compositions. The research questions this study set forth to answer are: (1) Are there any differences in the number of corrections performed by native and non-native speakers/instructors of university intermediate French classes when they evaluate compositions? (2) Are there any differences between native and non-native speakers/instructors in the categories (verb, noun, spelling, other) where error correction was performed? (3) Are there any differences between native and non-native speakers/instructors when and if they paid …

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Effects Of Chromium Picolinate On Growth And Body Composition In The Rat., Deborah Lynn Hasten Jan 1994

Effects Of Chromium Picolinate On Growth And Body Composition In The Rat., Deborah Lynn Hasten

LSU Historical Dissertations and Theses

Several human and animal studies of chromium (Cr) supplementation in the form of Cr picolinate (CrPic) have reported increases in lean body mass, often with concurrent body fat decreases. This 12-week study examined the effects of six dietary levels of CrPic (0, 75, 150, 300, 600, 1500 ppb Cr) upon the growth and body composition of the rat. Ninety male Harlan Sprague-Dawley outbred weanling rats arrived in three groups of 30 animals (referred to as Blocks 1, 2, and 3). Five animals from each block were assigned to each treatment, resulting in a 6 x 3 (treatment x block) Randomized …

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Molecular Marker Linkage Mapping In Southern Pine (Longleaf Pine And Slash Pine)., Thomas Lester Kubisiak Jan 1994

Molecular Marker Linkage Mapping In Southern Pine (Longleaf Pine And Slash Pine)., Thomas Lester Kubisiak

LSU Historical Dissertations and Theses

The goal of this work was to develop molecular markers for use in a backcross breeding program to speed the introgression of genes influencing rapid early height growth (EHG) from slash pine (Pinus elliottii Engelm. var. elliottii) into longleaf pine (Pinus palustris Mill.). The efficacy of molecular markers for genetic mapping in the Pinaceae was determined in segregating haploid and diploid populations. Initial screening for genetic polymorphisms was conducted using the random amplified polymorphic DNA (RAPD) technique. Using DNAs obtained from haploid megagametophytes, a RAPD-based genetic map for longleaf pine clone 3-356 (16 linkage groups and 6 pairs (133 markers) …

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Palmerston, Parliament And Peking: The Melbourne Ministry And The Opium Crisis, 1835-1840., Glenn Paul Melancon Jan 1994

Palmerston, Parliament And Peking: The Melbourne Ministry And The Opium Crisis, 1835-1840., Glenn Paul Melancon

LSU Historical Dissertations and Theses

"Palmerston, Parliament and Peking" is a revisionist work designed to challenge the prevailing economic interpretations of the first Opium War, 1839-1842. Orthodox historiography considers early nineteenth-century Britain as a modern, industrial society and argues that its Government needed to respond violently to the Chinese authorities' suppression of the opium trade in order to protect and expand a lucrative endeavor. Indian opium sales generated revenue for the British-run government in Bengal and paid for Chinese tea, a highly prized commodity in Great Britain. British industrialists demanded war to end the Chinese Government's restrictions on trade, known as the Canton system, thus …

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Communicating With The Elderly: Gender And Contact Differences In Prototypes, Hesitation Phenomena, Proxemics, And Interaction Evaluations., Lynn B. Wellman Jan 1994

Communicating With The Elderly: Gender And Contact Differences In Prototypes, Hesitation Phenomena, Proxemics, And Interaction Evaluations., Lynn B. Wellman

LSU Historical Dissertations and Theses

The purpose of the present dissertation was to examine some of the perceptions younger adults have about the elderly, communication behaviors during a cross-generational interaction, and evaluations of the interaction. The present investigation used an experimental design that included the following two independent variables: (1) gender and (2) amount of interaction (or contact) a younger adult has with elderly people. Subjects were categorized into high, medium, or low contact groups based on self-reports. The study consisted of an initial survey, an experiment (younger subjects interviewed by an elderly confederate), and a postinteraction survey. The gender and contact factors were investigated …

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A Comparison Of The Effects Of Multiple Visual Examples And Nonexamples Versus Prototypical Examples On Science Concept Learning: An Exploratory Study Based Upon The Concept Of Photosynthesis., Eleanor Deane Abrams Jan 1994

A Comparison Of The Effects Of Multiple Visual Examples And Nonexamples Versus Prototypical Examples On Science Concept Learning: An Exploratory Study Based Upon The Concept Of Photosynthesis., Eleanor Deane Abrams

LSU Historical Dissertations and Theses

Two researcher-produced, standard-length videos on photosynthesis (and accompanying ancillary materials) were developed with the input of educators and content experts. The control treatment video script contained the standard number of prototypical examples and graphics based high school textbooks. The experimental treatment video script was based on the theory of conceptual change. Two student focus groups met daily for one week and reviewed portions of the original experimental treatment script for clarity, brevity, and choice and placement of examples and nonexamples. Their suggestions and conceptual change have implications for curriculum design. The main research question of this study was: Do students …

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Effects Of Heat, Lactic Acid, And Modified Atmosphere Packaging On Listeria Monocytogenes On Cooked Crawfish Tail Meat., Warren Joseph Dorsa Jan 1994

Effects Of Heat, Lactic Acid, And Modified Atmosphere Packaging On Listeria Monocytogenes On Cooked Crawfish Tail Meat., Warren Joseph Dorsa

LSU Historical Dissertations and Theses

The generation time of L. monocytogenes was calculated to be 72.2, 28.5, 17.01, and 6.9 h on crawfish tail meat held at 0, 4, 6, and 12$\sp\circ$C, respectively. Potassium sorbate (PS) (0.3%) spray treatments on crawfish held at 4$\sp\circ$C, extended the lag phase of the bacterium. However, once exponential growth began, a generation time not significantly different (P $>$ 0.05) than that of untreated crawfish was observed. Samples sprayed with 0.3% citric acid (CA) and held at 4$\sp\circ$C supported growth of the bacterium equally well as that of untreated samples. Thermal inactivation of L. monocytogenes using a three neck …

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Synthesis Of Tryptophan And Tyrosine Derivatives., Li Shui Jan 1994

Synthesis Of Tryptophan And Tyrosine Derivatives., Li Shui

LSU Historical Dissertations and Theses

$\alpha$-Amino acids serve a central role in biology and chemistry. With the advance of a variety of sophisticated spectroscopic and computational methods to elucidate the relationships between amino acid sequence, protein conformation, and their chemical, physical, and biological properties, a tremendous level of interest has been generated in the de novo design and synthesis of unnatural amino acids for the purposes of imparting enzyme-inhibitory, antimetabolite, protease resistance, and unique conformational properties to peptides and derivatives. The goal of this research work was to synthesize tryptophan and tyrosine derivatives, which are conformationally constrained, with fixed side-chain to prevent $\alpha$-$\beta$ and/or $\alpha$-$\beta$ …

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Agricultural Terracing In The Fiji Islands. (Volumes I And Ii)., Robert Thomas Kuhlken Jan 1994

Agricultural Terracing In The Fiji Islands. (Volumes I And Ii)., Robert Thomas Kuhlken

LSU Historical Dissertations and Theses

Agricultural terraces form a distinctive element in the cultural landscape of Fiji. These skillfully fashioned earthworks were developed for the irrigated cultivation of one specific cultigen--taro (Colocasia esculenta), a long domesticated edible aroid. Constructing pondfields on slopes represents an intensification of production, with taro yields responding favorably to higher levels of labor input. In Fiji, irrigated terraces on the leeward side of larger islands also served to overcome seasonal conditions of drought or soil moisture deficits. Nearly all of these intensive agrosystems have been abandoned. But the carefully sculpted hillsides endure, and serve as poignant reminders of past travail. Taro …

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The Rhetoric Of The Organizational Saga: A Fantasy Theme Analysis Of The Organizational Communication Culture Of The Louisiana State Police., Brookie Ann Allphin Jan 1994

The Rhetoric Of The Organizational Saga: A Fantasy Theme Analysis Of The Organizational Communication Culture Of The Louisiana State Police., Brookie Ann Allphin

LSU Historical Dissertations and Theses

This dissertation is a fantasy theme analysis of the organizational communication culture of the Louisiana State Police. This study interprets the rhetorical function of the organizational sagas of State Police. State Police has a distinct history aligned with Louisiana Politics. In 1937, General Louis F. Guerre, the first superintendent, envisioned a new State Police, immune from political pressures, "soldiers of the law in the first line of defense for society." The symbolic persona of LSP has survived through fifty-six years of politics and policing as the state's ranking law enforcement agency. As participant observer, the researcher gathered communication data and …

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Fluorescence Studies Of Tomaymycin-Dna Adducts: Structure And Dynamics., Qi Chen Jan 1994

Fluorescence Studies Of Tomaymycin-Dna Adducts: Structure And Dynamics., Qi Chen

LSU Historical Dissertations and Theses

The relationship between ground-state structure and fluorescence lifetime of tomaymycin was studied using steady-state and time-resolved fluorescence, absorption, NMR, and photochemical techniques. Excited-state proton transfer and intersystem crossing were identified as the major nonradiative processes. Solvent isotope effect was found in aqueous solution, which did not involved C8OH. Photochemical H-D exchange on aromatic C6H and C9H were observed with similar rate. At 77 K, the total luminescence quantum yield was determined as 0.99. The quantum yield ratio of phosphorescence to fluorescence was 1.2. The limiting anisotropy was ${\sim}0.34$ for fluorescence and $-$0.1 for phosphorescence. The number and type of tomaymycin-DNA …

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Factors Influencing Conceptual Change In Evolution: A Longitudinal, Multicase Study., Sherry Southerland Demastes Jan 1994

Factors Influencing Conceptual Change In Evolution: A Longitudinal, Multicase Study., Sherry Southerland Demastes

LSU Historical Dissertations and Theses

A high school Biology II classroom was observed daily in order to study students' conceptual change in evolution of life. The conceptual frameworks of four student participants were documented and the patterns of conceptual change were studied closely throughout the full school year. Data collected included open-ended and structured individual interviews, student journals, daily classroom observations, field notes, and pre-and posttests. All 68 student interviews (17 per student) were recorded, transcribed, coded, and sorted to find patterns of conceptual change. Additional interviews were conducted with the teacher, parents, principal, and high school counselor. The researchers' interpretations were shared with the …

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Modeling Of Vdt Workstation System Risk Factors., Hongzheng Lu Jan 1994

Modeling Of Vdt Workstation System Risk Factors., Hongzheng Lu

LSU Historical Dissertations and Theses

The objectives of this research were to determine the most important risk factors in VDT workstations associated with physical symptoms and to investigate the interrelationship among these risk factors. A conceptual model was first developed to describe the interrelationship among the basic components in a VDT workstation system and their possible health effects. A research model was then proposed to describe the hypothesized relationships among the following categories of variables: demographic, task, workstation design, work environment, psychosocial factors, work posture, psychological stress, musculoskeletal symptoms, visual symptoms, and general physical symptoms. A method which consisted of a questionnaire, measurement and posture …

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Nutrient Restriction In Mares: Plasma Metabolite And Hormonal Characterization And Responses To Feeding And Metabolic Challenges., Leeann Salathe Sticker Jan 1994

Nutrient Restriction In Mares: Plasma Metabolite And Hormonal Characterization And Responses To Feeding And Metabolic Challenges., Leeann Salathe Sticker

LSU Historical Dissertations and Theses

Three experiments were designed to provide a comprehensive reference for the responses of plasma metabolites and hormones to control and restricted intakes of protein and(or) energy and to feed deprivation. The objectives of the first and second experiments were to characterize the effects of protein and(or) energy restriction on glucose, insulin, nonesterified fatty acids (NEFA), urea nitrogen (N), insulin like growth factor-1 (IGF-1), cortisol, triiodothyronine ($T\sb3$, thyroxine ($T\sb4$), prolactin, and growth hormone (GH) concentrations in plasma on a daily basis, after feeding, and after i.v. administration of glucose or epinephrine. The third experiment was conducted to answer questions of how …

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Enhancing Discourse Fluency By Increasing Work Selection Proficiency In School-Age Children With Language Learning Disorders., Lillian Nielsen Stiegler Jan 1994

Enhancing Discourse Fluency By Increasing Work Selection Proficiency In School-Age Children With Language Learning Disorders., Lillian Nielsen Stiegler

LSU Historical Dissertations and Theses

There is growing clinical and research interest in the area of children's "word finding" difficulties, but treatment efficacy data are sparse. Previous treatments have been concerned with training students with language-learning disorders (LLD) to retrieve pre-selected, concrete nouns. Recommended intervention strategies have included retrieval exercises and activities focused on improving students' elaborative knowledge of training exemplars. The current study presents and evaluates a discourse-based, contextual intervention strategy for increasing word selection proficiency and discourse fluency. Three nine year old boys with diagnosed language-learning disorders participated in three discourse tasks: picture-elicited narratives, story-retelling, and conversation. During treatment, the experimenter identified problematic …

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Permethrin Resistance In The Soybean Looper, Pseudoplusia Includens (Walker): Geographic Variation, Mechanisms, Inheritance, And Host Plant Effects., James Donald Thomas Jr Jan 1994

Permethrin Resistance In The Soybean Looper, Pseudoplusia Includens (Walker): Geographic Variation, Mechanisms, Inheritance, And Host Plant Effects., James Donald Thomas Jr

LSU Historical Dissertations and Theses

Field strains of soybean looper, Pseudoplusia includens (Walker), from Louisiana, Texas, and Puerto Rico were tested for permethrin synergism by piperonyl butoxide (PB) and S,S,S tributylphosphorotrithioate (DEF). Resistance was completely suppressed by 10 $\mu$g PB/larva in strains from Louisiana with 2.7 to 14.1-fold resistance. The Texas strain was 14.8-fold resistant and permethrin toxicity was increased 8.6-fold by PB. The Puerto Rico strain was highly resistant to permethrin (426.6-fold) and PB increased permethrin toxicity only 4.6 and 7.5-fold, respectively, at 10 and 20 $\mu$g/larva. No significant synergism resulted from DEF treatment in any of the strains tested. In field trials, efficacy …

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Self-Diffusion Of Semiflexible Rod-Like Poly-Gamma-Benzyl-Alpha, L-Glutamate In Dilute And Nondilute Isotropic Solutions., Zimei Bu Jan 1994

Self-Diffusion Of Semiflexible Rod-Like Poly-Gamma-Benzyl-Alpha, L-Glutamate In Dilute And Nondilute Isotropic Solutions., Zimei Bu

LSU Historical Dissertations and Theses

The self-diffusion coefficient (D$\sb{\rm s}$) of fluorescent dye labeled poly-$\gamma$-benzyl-L-glutamates (LPBLG) in pyridine solutions was measured by fluorescence photobleaching recovery (FPR). Intrinsic viscosity and static light scattering measurements showed that the LPBLGs did not aggregate in pyridine and that the rod structure of LPBLG was not perturbed by labeling. The measured concentrations spanned from dilute to the most concentrated isotropic solutions, and the axial ratios from 7 to 80 (M$\sb{\rm W}$ ranged from 20 000 to 232 000). The objective of this FPR study was to focus directly on the translational diffusion of a single LPBLG molecule in the absence …

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Application Of Optimum Solutions Of A Diffusion Model To Evaluate The Effects Of Extractives In Wood Drying., Yong Chen Jan 1994

Application Of Optimum Solutions Of A Diffusion Model To Evaluate The Effects Of Extractives In Wood Drying., Yong Chen

LSU Historical Dissertations and Theses

This study evaluates the influence of extractives on moisture diffusivity, and thereby the drying behavior of wood. Extractives are minor chemical components of wood, and their effect on moisture diffusion is sensitive to experimental and calculation errors. A series of studies designed to accurately determine the proper solutions of a diffusion model was done; then studies to determine the effect of extractives in a wood drying system were undertaken. The drying curves derived from the optimum diffusion coefficients gave better prediction of experimental drying data than those derived from traditional approximate methods; therefore, optimum methods were applied in the study …

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A Comparative Study Of The Oral Language Of Students In Basal-Based And Whole Language Kindergartens., Joan H. Lucille Benedict Jan 1994

A Comparative Study Of The Oral Language Of Students In Basal-Based And Whole Language Kindergartens., Joan H. Lucille Benedict

LSU Historical Dissertations and Theses

Concern has existed for several years over the classroom practices relating to the "whole language" approach as opposed to the "basal-based" approach relative to literacy development, especially with respect to the appropriateness of each method for use with minority and lower socioeconomic groups of children entering kindergarten. This study describes the oral language of both African American and European American kindergarten children from low and middle socioeconomic status families who are attending public school kindergartens, one using whole language and one a basal-based approach. The language during centertime of seventeen children from these two classrooms was audiotaped using wireless microphones …

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Tolerance Potential And Defense Mechanisms Of Honey Bees (Apis Mellifera L.) To Varroa Jacobsoni Oud. (Acari: Varroidae) And Acarapis Species (Acari: Tarsonemidae)., Lilia Ibay De Guzman Jan 1994

Tolerance Potential And Defense Mechanisms Of Honey Bees (Apis Mellifera L.) To Varroa Jacobsoni Oud. (Acari: Varroidae) And Acarapis Species (Acari: Tarsonemidae)., Lilia Ibay De Guzman

LSU Historical Dissertations and Theses

Comparative resistance or tolerance of four stocks of Apis mellifera L. to Varroa jacobsoni Oudemans, Acarapis dorsalis Morgenthaler, Acarapis externus Morgenthaler and Acarapis woodi (Rennie), was investigated using choice (bioassay) and field experiments. A. m. carnica from Yugoslavia (ARS-Y-C-1), A. m. carnica from Canada (Hastings), F$\sb1$ hybrid between ARS-Y-C-1 and Hastings and a general Louisiana stock were evaluated. A tolerance index showed that Hastings, ARS-Y-C-1 and F$\sb1$ hybrid exhibited some degree of tolerance to V. jacobsoni. These stocks lived longer with higher levels of Varroa infestation in worker pupae and on adult honey bees. Louisiana stock was more susceptible to …

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Nitric Oxide Toxicity Mediated By Peroxynitrite., Xia Jin Jan 1994

Nitric Oxide Toxicity Mediated By Peroxynitrite., Xia Jin

LSU Historical Dissertations and Theses

The reaction of nitric oxide (NO) with superoxide forms peroxynitrite, an extremely potent oxidant. Peroxynitrite can be synthesized by the ozonation of the azide ion. This preparation of peroxynitrite is essentially free of hydrogen peroxide and does not contain excess alkali. Peroxynitrites synthesized by independent methods contain very different impurities, but give the same results toward the oxidation of methionine (Met), dimethylsulfoxide, and the nitration of phenols. The oxidations of Met and its analog, 2-keto-4-thiomethylbutanoic acid (KTBA), by peroxynitrite proceed by two competing mechanisms. The first is a non-radical, bimolecular reaction yielding methionine sulfoxide (MetS=O). In the second mechanism, methionine …

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Demographic And Genetic Studies Of Seed Dispersal And Juvenile Survival In An Old-Growth Longleaf Pine Population., Susan Langevin Grace Jan 1994

Demographic And Genetic Studies Of Seed Dispersal And Juvenile Survival In An Old-Growth Longleaf Pine Population., Susan Langevin Grace

LSU Historical Dissertations and Theses

Many biotic and abiotic factors contribute to the formation of aggregations of seedlings and juveniles in populations of forest trees. The following studies investigate factors influencing the spatial structure of juveniles in an old-growth longleaf pine (Pinus palustris Mill.) population. In the first study, effects of adult tree density, pine needle litter and fire temperature were related to the demography of juveniles. A cohort of juveniles from a mast year in 1987 was followed over four years. Demographic components were determined both before and up to two years after fire. Juveniles were more dense, larger and had higher survival in …

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An Examination Of The Intonation Tendencies Of Advanced Wind Instrumentalists Based On Their Performance Of Selected Musical Intervals., Brant Gilmore Karrick Jan 1994

An Examination Of The Intonation Tendencies Of Advanced Wind Instrumentalists Based On Their Performance Of Selected Musical Intervals., Brant Gilmore Karrick

LSU Historical Dissertations and Theses

The purpose of this study was to examine performance trends of advanced wind instrumentalists with regard to intervallic tuning. Factors of interest were tuning system, location (above or below a referential stimulus), interval type, and group (student or professional). Also of interest was the direction of deviation of the target pitches, sharp or flat, from equal temperament. Subjects (N = 16) were experienced wind instrumentalists, eight experienced professionals, and eight advanced university students. Subjects were recorded performing a two-part reduction of a Bach chorale, first playing the melody with a synthesized harmony line, then vice versa. Performances were transferred to …

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Study Of Asphalt And Polymer-Modified Asphalt: Microstructure, Compatibility And Reinforcement Effect., Zhaoyao Qiu Jan 1994

Study Of Asphalt And Polymer-Modified Asphalt: Microstructure, Compatibility And Reinforcement Effect., Zhaoyao Qiu

LSU Historical Dissertations and Theses

Eight asphalt samples with grades ranging from 10 to 30 from four different sources were examined using NMR, FTIR, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) and constant stress rheometry (CSR). The crystallization process of asphalt is very time dependent. Slow heating or annealing before analysis in order to experimentally realize a close-to-equilibrium state is necessary in order to study the system with more thermodynamic rigor. The DSC method developed in this research shows a possible application in asphalt identification with respect to crude and manufacture source. Dynamic mechanic analysis shows in asphalts only those segments primarily composed of …

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Robert Cavally's Edition Of G. F. Handel's Solo Flute Sonatas: An Evaluation And Historical Perspective., Lisa Karen Read Jan 1994

Robert Cavally's Edition Of G. F. Handel's Solo Flute Sonatas: An Evaluation And Historical Perspective., Lisa Karen Read

LSU Historical Dissertations and Theses

Teachers are frequently faced with the difficult dilemma of determining what edition of a particular Baroque work they should recommend to their students. This decision is becoming even more difficult as modern publishers continue to produce new editions of standard repertoire. Such is the case with G. F. Handel's solo sonatas, often referred to as his "Opus 1". One publication of these sonatas that has been popular for over fifty years among flutists and flute teachers is G. F. Handel: Seven Sonatas and Famous Largo for Flute and Piano, edited by Robert Cavally (c. 1941). Because this edition was prepared …

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Fundamental Studies Of Capillary Electroosmosis And Electrokinetic Removal Of Phenol From Kaolinite., Heyi Li Jan 1994

Fundamental Studies Of Capillary Electroosmosis And Electrokinetic Removal Of Phenol From Kaolinite., Heyi Li

LSU Historical Dissertations and Theses

Capillary electroosmosis is an important factor in capillary zone electrophoresis (CZE) and micellar electrokinetic capillary chromatography (MECC). A new application of electrokinetic phenomena in environmental science is electrokinetic soil processing, which is an emerging technique with the capability to decontaminate polluted soils. Chapter 1 discusses the fundamental theory behind electroosmosis, CZE, MECC, and electrokinetic soil processing. In chapter 2, the surface conductances of different concentrations of KCl solutions in 50 and 100 $\mu$m capillaries were measured using an AC method, to attempt to characterize capillary double layers. With increase of KCl concentration, the surface conductance increases. Chapter 3 involves fundamental …

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Bioavailability Of Nonexchangeable Ammonium In Soils., Sivapatham Paramasivam Jan 1994

Bioavailability Of Nonexchangeable Ammonium In Soils., Sivapatham Paramasivam

LSU Historical Dissertations and Theses

The agriculturally important soils of the lower Mississippi alluvial plain typically display surprisingly high levels of nitrogen (N) fertility given the low amounts of organic matter and readily available forms of N characteristically present in these soils. The principal goal of this research was to investigate N dynamics in these soils with special attention devoted to the possible role of clay-fixed NH$\sb4\sp+$ in N fertility. Characterization of the N distribution in 9 soil profiles (0-150 cm) representative of the principal agricultural soils of the lower Mississippi River alluvial plain indicated that most of the N in surface horizons was in …

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