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Rearrangements Of Alpha-Halosilanes And Conformational Analysis Of Silanes., Rayomand Jal Unwalla Jan 1986

Rearrangements Of Alpha-Halosilanes And Conformational Analysis Of Silanes., Rayomand Jal Unwalla

LSU Historical Dissertations and Theses

A number of (alpha)-halosilanes, some which are chiral at carbon, have been prepared. Lewis acid-catalyzed rearrangements and thermal rearrangements were performed on ((alpha)-chloroethyl)diphenylmethylsilane. Both the rearrangements proceed cleanly; the major product is formed by the migration of the phenyl group from silicon to carbon. The rearranged product mixture was subjected to a Kumada-type oxidation in which the silicon-carbon is cleaved stereospecifically. Thus the principle has been established that a clean rearrangement can be carried out in a manner which will allow determination of the stereochemistry at the carbon center. Preliminary kinetic studies of the thermolysis of ((alpha)-chlorobenzyl)dimethylphenylsilanes containing p-substituents in …

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Damage Threshold And Sampling Methodology Of The Southern Green Stink Bug, Nezara Viridula (L.) On Fresh Market Tomatoes., Ben-Huai Lye Jan 1986

Damage Threshold And Sampling Methodology Of The Southern Green Stink Bug, Nezara Viridula (L.) On Fresh Market Tomatoes., Ben-Huai Lye

LSU Historical Dissertations and Theses

The effect of tomato fruit size and SGSB density and feeding duration on tomato circumference, weight, and days to maturity, as well as SGSB feeding frequency as indicated by the deposition of stylet sheaths, was quantified. Density and feeding duration had a significant effect on all four damage indices. The interactive effect of density and feeding duration were nonsignificant across all fruit damage indices. Feeding damage induced an early maturity of fruit and thereby reduced fruit size and weight. Both density and feeding duration significantly affected fruit grade. Because of highly significant interactions among grade, density, and feeding duration, the …

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An Empirical Investigation Of The Comparability Of Reported Earnings Per Share Under Accounting Principles Board Opinion No. 15., Suzanne Resi Pinac-Ward Jan 1986

An Empirical Investigation Of The Comparability Of Reported Earnings Per Share Under Accounting Principles Board Opinion No. 15., Suzanne Resi Pinac-Ward

LSU Historical Dissertations and Theses

Earnings per share (EPS) is considered by many to be one of the most important summary indicators presented in the financial statements. Many financial statement users rely on EPS as the most important single measure of corporate performance. Previous empirical evidence suggests that a strong link exists between EPS changes and stock price changes. The objective of this study was to determine if the provisions of APB 15 provide for consistent reporting of comparable EPS figures across preparers of financial statements. The application of alternative interpretations of provisions of APB 15 has the potential to produce materially different EPS figures. …

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The Song Cycles Of Ned Rorem: A Technical Survey., Leon Austin Henry Jr Jan 1986

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 …

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Plant Water Relations Of Four Coastal Louisiana Dune And Swale Species., Frank J. Monteferrante Jan 1986

Plant Water Relations Of Four Coastal Louisiana Dune And Swale Species., Frank J. Monteferrante

LSU Historical Dissertations and Theses

Native vegetation has recently been planted to control erosion along the Louisiana Gulf coast. The literature has characterized the dune habitat as xeric and its vegetation as adapted to low moisture availability. To analyze the drought ecology of Louisiana's coastal dune vegetation, a one-year field investigation of plant water relations and subsequent greenhouse drought-stress experiments were performed on Spartina patens (Aiton) Muhl., Panicum amarum Ell., Hydrocotyle bonariensis Lam., and Solidago sempervirens L. In addition, the sources of soil moisture and edaphic parameters related to soil-moisture availability were investigated. The field investigation showed dune and swale soils to be mainly fine …

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Modification Of Condensation Polymers., Cholticha Rungaroonthaikul Jan 1986

Modification Of Condensation Polymers., Cholticha Rungaroonthaikul

LSU Historical Dissertations and Theses

The degradation of poly oxy-1,4-phenylene(1-methylethylidene)-1,4-phenylene-oxy-1,4-phenylenesulfonyl-1,4-phenylene (poly(arylether sulfone)), 1, promoted by excess sodium methoxide was evaluated spectrophotometrically. Direct nitration of 1 with ammonium nitrate in trifluoroacetic anhydride produced poly(2-nitroarylether sulfone). The model segment 1 produced by reaction of 2,2'-bis(4-hydroxyphenyl)propane (bixphenol-A) with 7, was nitrated to obtain model segment of 2,2'-bis 3-nitro-4-(4-phenylsulfonyl phenoxy)-phenyl propane. The rate of polymer degradation was estimated by observing the increase in the concentration of phenolate end groups in the presence of sodium methoxide. It was shown that less than 6% degradation of the most reactive polymer, poly(2-nitroarylether sulfone) occurred after one week at 25(DEGREES)C. Comparison of the …

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A Practice Manual: Jacob Dont's Twenty-Four Studies, Opus 37 (Violin, Austria)., James Christopher Thompson Jan 1986

A Practice Manual: Jacob Dont's Twenty-Four Studies, Opus 37 (Violin, Austria)., James Christopher Thompson

LSU Historical Dissertations and Theses

A Practice Manual: Jacob Dont's TWENTY-FOUR STUDIES, Opus 37 (for solo violin) is designed for use with the Galamian edition of this work. The text provides specific practice objectives and practice procedures for each of the studies in Dont's Opus 37. This manual is intended to function as a supplement to studio instruction--not as a substitute for it. Aspects of technique which commonly present problems to most students are identified. Practice procedures designed to provide solutions to these problems are presented. The principles of practice incorporated in this manual can be applied in many examples from the etude literature for …

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Palladium-Catalyzed Vinylic Substitution Of Aryl Halides On Polymeric Nitrogen Supports., Chia-Hsing Sun Jan 1986

Palladium-Catalyzed Vinylic Substitution Of Aryl Halides On Polymeric Nitrogen Supports., Chia-Hsing Sun

LSU Historical Dissertations and Theses

The structure of typical palladium complexes used as catalysts in organic synthesis is reviewed; particular attention is paid to the systematic study of palladium catalyzed vinylic substitution on a variety of aryl iodides and bromides (Heck-type vinylation). The general conditions of this process, i.e., a homogeneous catalyst operating at moderate temperature, which requires a proton acceptor to complete the catalyst cycle, are conducive to successful development of a polymer-bound catalyst. Using 4-picoline as a ligand under homogeneous Heck-type vinylation conditions. Morpholine is an adequate base to stabilize the catalytic picoline complex when aryl iodides are condensed with styrene. However, sodium …

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Fluorescence Of Proanthocyanidin Polymers (Rotational Isomer)., Wolfgang Robert Bergmann Jan 1986

Fluorescence Of Proanthocyanidin Polymers (Rotational Isomer)., Wolfgang Robert Bergmann

LSU Historical Dissertations and Theses

The lifetimes and quantum yields of proanthocyanidins, monomers and dimers of catechin and epicatechin, were measured. The fluorescence quantum yield and lifetime of the monomers was three times greater in dioxane than in water. The fluorescence decay curves of catechin and epicatechin were found to be fit best by a monoexponential function. The fluorescence decay of dimers of epicatechin and catechin were best fit to a sum of two exponentials. The fluorescence decay curve of a bridged dimer, Procyaninidin A-2, in dioxane was best fit to a monoexponential function. The 400 MHz proton NMR spectra of Procyanidin B-1 decaacetate in …

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Laser Optogalvanic And Photoacoustic Studies Of Some Atoms And Small Molecules., Phillip Lamar Clancy Jan 1986

Laser Optogalvanic And Photoacoustic Studies Of Some Atoms And Small Molecules., Phillip Lamar Clancy

LSU Historical Dissertations and Theses

A device designed to perform laser optogalvanic (LOG) measurements on low pressure gases in an electrical discharge has been constructed. The device employs the unique combination of pulsed laser radiation in the visible range, and transverse excitation of a radiofrequency (RF) discharge to obtain high quality spectroscopic data on highly excited atomic and molecular species existing in an electrical discharge. The results of LOG studies on xenon, cesium, and nitrogen are reported. In addition to functioning as a sensitive LOG detector, it has been discovered that the RFLOG device serves admirably as a contractless transducer of the photoacoustic signal. When …

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Para-Social Interaction, Rhetorical Sensitivity, And Television News Viewing., Michael Anthony Domingue Jan 1986

Para-Social Interaction, Rhetorical Sensitivity, And Television News Viewing., Michael Anthony Domingue

LSU Historical Dissertations and Theses

This study sought to determine the relationship between para-social interaction (an imaginary interaction with mass media) with local and network news viewing and rhetorical sensitivity (an attitude toward encoding spoken messages). It was predicted that para-social interaction would be positively related to rhetorical sensitivity. The Rubin, Perse, and Powell PSI Scale was used to measure para-social interaction. The three internal scales of the Hart, Carlson and Eadie RHETSEN II Scale (the Noble Self Scale, the Rhetorical Reflector Scale and the Rhetorical Sensitivity Scale) were used to measure rhetorical sensitivity. 157 undergraduates enrolled in communication courses responded to scales. A canonical …

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A Collection Of Solo French Chansons From The Early Fifteenth Century For Use In The College Level Voice Studio., Helen Marshall Gibbons Jan 1986

A Collection Of Solo French Chansons From The Early Fifteenth Century For Use In The College Level Voice Studio., Helen Marshall Gibbons

LSU Historical Dissertations and Theses

The first great flowering of polyphonic song occurred from the middle of the fourteenth century through the fifteenth century. A few of these songs are now occasionally included in public concerts. Because of the increasing interest in performance of early music of all types at colleges, universities, and by professional groups, it is important for students and teachers of singing to be exposed to this body of literature. The study of solo songs offers a convenient beginning. This study presents a small collection of French chansons from the early to the middle fifteenth century, each for solo voice with two …

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New Types Of Lanthanide Complexes (Polyatomic Oxides)., Ishenkumba Albert Kasimbazi Kahwa Jan 1986

New Types Of Lanthanide Complexes (Polyatomic Oxides)., Ishenkumba Albert Kasimbazi Kahwa

LSU Historical Dissertations and Theses

Three new types of lanthanide (Ln) complexes, namely, the first examples of homodinuclear macrocyclic lanthanide complexes, novel binary and ternary gaseous polyatomic lanthanide oxides and new lanthanide oxalato complexes are described in chapters one, two and three respectively. The homodinuclear complexes are 2:2 condensation products of 2,6-diformyl-p-cresol and triethylenetetramine templated by Ln(NO(,3))(,3) and Ln(ClO(,4))(,3). The complexes are dimorphic, and are off-white (the more stable form) when they are obtained from dilute solutions and orange if they arise from more concentrated reactants. The complexes were characterized by elemental analysis, fast atom bombardment mass spectrometry (FAB MS), electronic absorption and IR spectroscopy, …

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Models For The Study Of Intramolecular Interactions: Preparation, Structure And Reactivity Of 2-(2'-Acyloxyphenylethynyl)Benzoic Acids., Michael Allen Oliver Jan 1986

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 …

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Photophysics And Photochemical Studies Of Polypyridine Ruthenium (Ii) Complexes., Mario Alberto Ollino Jan 1986

Photophysics And Photochemical Studies Of Polypyridine Ruthenium (Ii) Complexes., Mario Alberto Ollino

LSU Historical Dissertations and Theses

Stern-Volmer plots for the quenching of luminescence and for the photosubstitution reaction of tris-bipyridylruthenium(II) at 298 K were obtained. The two Stern-Volmer plots were found to be similar; this result is different from that of a previous report, but it agrees well with a general model postulated to represent the photophysical processes of the excited states of polypyridine ruthenium(II) complexes. The temperature dependence of the emission intensities and of the lifetimes of tris-bipyridylruthenium(II), cis-ibspyridyl bis-2,2'bipyridylruthenium(II), and 4,5-diazafluorenyl-bis-2,2'bipyridylruthenium(II) were reinvestigated in order to evaluate the difference in energy between the triplet metal to ligand charge transfer and ligand field excited states. …

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Franz Liszt's Settings Of Three Petrarch Sonnets., Brenda C. Ray Jan 1986

Franz Liszt's Settings Of Three Petrarch Sonnets., Brenda C. Ray

LSU Historical Dissertations and Theses

Franz Liszt's transcriptions of his own works and the works of others represent a significant segment of his keyboard compositions. These transcriptions (and his numerous revisions of them) provide opportunities for studying the development of his compositional styles. For example, the four versions of three Petrarch sonnets reveal the manner in which he used his own basic musical material in two different areas of performance (that is, vocal and keyboard), and they illuminate the path he took that led to his late style. The purpose of this study was to examine Liszt's four versions of the sonnets (the 1838-39 tenor …

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The Rhetorical Drama Of Lyndon B. Johnson: A Burkean Analysis., David Stiles Shipley Jan 1986

The Rhetorical Drama Of Lyndon B. Johnson: A Burkean Analysis., David Stiles Shipley

LSU Historical Dissertations and Theses

This study analyzes President Lyndon Johnson's Vietnam rhetoric during the escalation period of 1964-1965 to uncover what effect his place in history, his personality, and his political style had on presidential rhetoric in the twentieth century. For this purpose, the critical insights of Kenneth Burke are utilized not only to uncover what rhetoric Johnson used during this period but also what it meant to the American people and how it served the President's purposes. According to Burke, man views everything through a "fog of symbols." His dramatic critique of symbols, what is sometimes referred to as "logology," attempts to get …

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Spectroscopic Studies Of The Metal Centers In Hydrogenases And Carbon Monoxide Dehydrogenase (Nickel)., Isabel Cristina Zambrano Jan 1986

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 …

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The Anniversaries For Solo Piano By Leonard Bernstein., Sigrid Luther Jan 1986

The Anniversaries For Solo Piano By Leonard Bernstein., Sigrid Luther

LSU Historical Dissertations and Theses

Leonard Bernstein has written three sets of dedicatory piano miniatures: Seven Anniversaries (1943), Four Anniversaries (1948), and Five Anniversaries (1949-51). Each piece is in honor of a close friend, relative, or family member of a friend of the composer. The titles bear the names of the respective dedicatees (for example, "For Aaron Copland"); the titles in all but the first set also include the date of birth. The purpose of this monograph is to provide background information about each dedicatee and to analyze each tribute in terms of significant musical features, with brief reference to pedagogical considerations. It has been …

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The Threecornered Alfalfa Hopper On Soybean: Determination Of Damaging Stages, Development Of Sampling Methodology, Refinement Of The Action Threshold, And Evaluation Of Insecticidal Control (Spissistilus Festinus, Glycine Max)., Alton Neal Sparks Jr Jan 1986

The Threecornered Alfalfa Hopper On Soybean: Determination Of Damaging Stages, Development Of Sampling Methodology, Refinement Of The Action Threshold, And Evaluation Of Insecticidal Control (Spissistilus Festinus, Glycine Max)., Alton Neal Sparks Jr

LSU Historical Dissertations and Theses

Experiments conducted in soybean, Glycine max (L.) Merrill, fields in 1983 and 1984 demonstrated that damage by both adults and nymphs of the second generation of the threecornered alfalfa hopper, Spissistilus festinus (Say), on soybean (third generation of the year) contribute to yield reduction. Results indicated nymphs were responsible for 45-60% of the total yield reduction. The vertical beat sheet, ground cloth, and beat net techniques for sampling S. festinus nymphs were evaluated in soybean fields utilizing systematic and random sampling. Based on the proportion of the population sampled, the relative variation, and regression on subsequent adult counts, the best …

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Spectroscopy And Photochromism Of Triphenylformazan And Its Derivatives., Claudina Veas-Arancibia Jan 1986

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 …

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Spectral Studies Of Constituents Of Members Of The Family Asteraceae., Karla Ann Wilzer Jan 1986

Spectral Studies Of Constituents Of Members Of The Family Asteraceae., Karla Ann Wilzer

LSU Historical Dissertations and Theses

A phytochemical investigation of ten species of the genus Aster (Family Asteraceae, Tribe Astereae) was carried out. The study involved the following taxa from the southern region of the United States: A. adnatus, A. concolor, A. dumosus x lateriflorus (a hybrid), A. lateriflorus, A. patens, A. praealtus, A. spinosus, A. subulatus var. ligulatus and A. tenuifolius as well as A. umbellatus from Pennsylvania. The chemical analysis of A. praealtus provided umbelliferone and seven prenylated coumarins of which four were new natural products. A ten-carbon acetylenic compound was isolated from A. spinosus. (DELTA)('7)- Sterols were found in A. adnatus which is …

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Model Reduction Of Stochastic And Deterministic Continuous Time Linear Systems (Lypunov Equation, Schawrz Approximation)., Khier Benmahammed Jan 1986

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 …

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An Electronic Load Compensator For Arc Furnaces (Reactive Current, Static Var Compensator)., Mickey Dale Cox Jan 1986

An Electronic Load Compensator For Arc Furnaces (Reactive Current, Static Var Compensator)., Mickey Dale Cox

LSU Historical Dissertations and Theses

An electronic compensator is described that is capable of compensating the reactive current drawn by arc furnaces and other nonlinear, time-varying loads. Consisting of three independent single-phase pulse-width modulated (PWM) inverters, along with appropriate controller and detector stages, the proposed compensator responds quickly to sudden load changes and compensates the reactive current drawn by the load. Unlike conventional static var compensators, the electronic compensator can also supply the active current demanded by the load if an energy source independent of the utility is available. Simulations are conducted, including the modelling of the furnace current and voltage waveforms during the early …

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Influence Strategies In Husband-Wife Purchase Decision-Making., Ellen Ruth Foxman Jan 1986

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 …

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Faculty Senate Resolution 85-03, Louisiana State University And Agricultural & Mechanical College Dec 1985

Faculty Senate Resolution 85-03, Louisiana State University And Agricultural & Mechanical College

LSU Faculty Senate Publications

Faculty Senate Resolution on the thirty-nine hour general education component, adopted on December 5, 1985.

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An Analysis Of Mercury Accumulation Within The Upper Estuarine Food Chain Of Lake Charles, Louisiana, Jeffrey W. Tingle Nov 1985

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 …

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Faculty Senate Resolution 85-04, Louisiana State University And Agricultural & Mechanical College Nov 1985

Faculty Senate Resolution 85-04, Louisiana State University And Agricultural & Mechanical College

LSU Faculty Senate Publications

Faculty Senate Resolution on LSU Foundation funds, adopted on November 14, 1985.

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Faculty Senate Resolution 85-02, Louisiana State University And Agricultural & Mechanical College Nov 1985

Faculty Senate Resolution 85-02, Louisiana State University And Agricultural & Mechanical College

LSU Faculty Senate Publications

Faculty Senate Resolution on meaningful faculty representation to the LSU Board of Supervisors, adopted on November 14, 1985.

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Faculty Senate Resolution 85-01, Louisiana State University And Agricultural & Mechanical College Oct 1985

Faculty Senate Resolution 85-01, Louisiana State University And Agricultural & Mechanical College

LSU Faculty Senate Publications

Faculty Senate Resolution on a bylaws amendment regarding the commencement exercises committee, adopted on October 9, 1985.

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