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Enzymatic Hydrolysis Of Crawfish Processing By-Products For Bioflavor Production., Hyung-Hee Baek Jan 1994

Enzymatic Hydrolysis Of Crawfish Processing By-Products For Bioflavor Production., Hyung-Hee Baek

LSU Historical Dissertations and Theses

Crawfish processing by-products (CPBs) were hydrolyzed using protease to evaluate the potential for bioflavor production. Ten commercial proteases (neutral and alkaline) were tested at both 37$\sp\circ$C and their optimum temperatures using CPBs as substrate. Of these, APL-440 was selected for enzymatic hydrolysis of CPBs on the basis of activity per cost. Response surface methodology (RSM) was used to optimize the hydrolysis of CPBs using APL-440. Optimum hydrolysis conditions for enzymatic hydrolysis of CPBs with APL-440 were determined to be pH 8-9, 65$\sp\circ$C, 2.5 hr reaction time, 75% substrate concentration, and 0.3% APL-440. Two types of CPBs (composite and claw) were …

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Elevation Of The Hatching Envelope In Penaeidea Shrimp: Morphology And Assembly., Patricia Stoops Glas Jan 1994

Elevation Of The Hatching Envelope In Penaeidea Shrimp: Morphology And Assembly., Patricia Stoops Glas

LSU Historical Dissertations and Theses

The appearance of extracellular coats around "eggs" are associated with activation of the oocytes. This coat, termed fertilization envelope (sea urchins), chorion (fish), zona pellucida (mammals), capsule (crab) or hatching envelope (HE) (shrimp) serves as a polyspermy block (Wasserman, 1982) or microenvironment protecting the egg from bacteria or other hostile elements (Kudo and Inoue, 1989; Kudo and Teshima, 1991; Kudo, 1992; Epel, 1993). HE assembly is described for penaeoid shrimp (Lynn, et al., 1991) and is, in contrast to many systems, a fertilization independent event. However, the mechanisms of assembly appear similar to extracellular coat formation in other animal systems …

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Interactions Between Fusarium Oxysporum F. Sp. Lycopersici And Nonpathogenic Strains Of Fusarium Oxysporum., Monica Michelle Lear Jan 1994

Interactions Between Fusarium Oxysporum F. Sp. Lycopersici And Nonpathogenic Strains Of Fusarium Oxysporum., Monica Michelle Lear

LSU Historical Dissertations and Theses

Race 1 isolates collected from tomato roots were used to develop an orange mutant of Fusarium oxysporum f. sp. lycopersici (FOL) for use in competitive infection tests against nonpathogenic F. oxysporum isolates. Eighty one color mutants were induced by exposure to ultraviolet light. The mutant ORA-22 retained pathogenicity and growth habit similar to the wild-type. Preliminary competitive infection tests indicated differences within the nonpathogenic population in the ability to suppress or enhance infection by FOL orange mutant ORA-22. Four vegetative compatibility groups (VCGs) were tested to determine if competitive infection ability was associated with VCG designation. Results from these tests …

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The Role Of Infaunal And Epifaunal Suspension Feeding Macrofauna On Rates Of Benthic-Pelagic Coupling In A Southeastern Estuary., Christine Miller-Way Jan 1994

The Role Of Infaunal And Epifaunal Suspension Feeding Macrofauna On Rates Of Benthic-Pelagic Coupling In A Southeastern Estuary., Christine Miller-Way

LSU Historical Dissertations and Theses

This research investigated the effects of two suspension feeding bivalves, the infaunal Rangia cuneata, and the epifaunal Crassostrea virginica, on benthic-pelagic coupling in Fourleague Bay, LA, a river-dominated estuary. A continuous-flow microcosm system was developed to overcome recognized limitations of batch methodology and to facilitate manipulations designed to investigate the ecological role of benthic macrofauna. Experiments comparing traditional batch methodology to continuous-flow methodology indicated that rates of benthic processes were consistently greater when measured using continuous-flow methodology. Examinations of concentrations indicated that differences were due to concentration gradients which departed from ambient over time in the batch cores. Over an …

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Pharmacodynamics Of Non-Steroidal Anti-Inflammatory Agents In Acute Inflammation And Chronic Pain In The Horse., Jane Granville Owens Jan 1994

Pharmacodynamics Of Non-Steroidal Anti-Inflammatory Agents In Acute Inflammation And Chronic Pain In The Horse., Jane Granville Owens

LSU Historical Dissertations and Theses

The analgesic and anti-inflammatory effects of the nonsteroidal anti-inflammatory drugs (NSAIDs) ketoprofen (2.2 and 3.63 mg/kg) and phenylbutazone (4.4 mg/kg) were compared in equine models of acute synovitis and chronic hoof pain. The eicosanoids, prostaglandin E$\sb2$ (PGE$\sb2$) and leukotriene B$\sb4$ (LTB$\sb4$), increased dramatically in synovial fluid after carrageenan-induced synovitis of the intercarpal joint. PGE$\sb2$ concentrations in untreated horses peaked at 9 hours while LTB$\sb4$ concentrations peaked in all horses at 3 hours. Synovial fluid concentrations of both eicosanoids returned to near baseline by 48 hours. Lameness, joint temperature, and synovial fluid volume, protein and nucleated cells increased at 3 to …

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Studies On The Diffusive Transport Of Hydrophobic Organic Chemicals In Bed Sediments., Gregory John Thoma Jan 1994

Studies On The Diffusive Transport Of Hydrophobic Organic Chemicals In Bed Sediments., Gregory John Thoma

LSU Historical Dissertations and Theses

Hydrophobic chemicals have accumulated in sediments for most of the last century as the result of industrial and municipal discharges as well as urban and agricultural runoff to surface waters. Beginning with the Clean Water Act, these pollutant sources have been significantly reduced resulting in the sediments becoming a source of pollutants to the overlying water ecosystem. It is therefore important to determine the rate at which the contaminants associated with the sediment are released to the water. Removal or isolation of sediment-associated contaminants is often desirable. One option for isolation of contaminated sediments from the aquatic ecosystem is capping, …

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Promoter Analysis Of A Rice Seed Storage Protein Glutelin Gene And Expression Of Bean 7s Seed Storage Protein Beta-Phaseolin In Transgenic Rice Plants., Zhenwei Zheng Jan 1994

Promoter Analysis Of A Rice Seed Storage Protein Glutelin Gene And Expression Of Bean 7s Seed Storage Protein Beta-Phaseolin In Transgenic Rice Plants., Zhenwei Zheng

LSU Historical Dissertations and Theses

It was demonstrated, using a homologous transgenic rice system, $5\sp\prime$ distal and proximal cis-acting transcriptional regulatory elements were required for developmental control of a rice seed storage protein glutelin (Gt1) gene. The functional importance of proximal elements in the context of the 1.8 kb promoter was demonstrated by single substitution mutations in the TATA box ($-$28/$-$23), AACA motif ($-$73/$-$61), and protein-binding Boxes I ($-$103/$-$86), II ($-$124/$-$110), III ($-$175/$-$158), and IV ($-$200/$-$217). A simultaneous mutation of five protein-binding sites ($-$410/$-$86) essentially eliminated the activity of the 1.8 kb promoter. To understand the function of the $5\sp\prime$ distal cis-acting upstream sequence, eighteen …

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Matrix Solid Phase Dispersion Applications For Environmental Analyses., Michael Douglas Crouch Jan 1994

Matrix Solid Phase Dispersion Applications For Environmental Analyses., Michael Douglas Crouch

LSU Historical Dissertations and Theses

The present investigations were conducted to examine the use of a new methodology termed matrix solid phase dispersion (MSPD) in combination with chromatographic techniques to analyze different classes of environmentally significant compounds in biological matrices. The research described in this dissertation represents the author's work to demonstrate the feasibility of improving environmental analytical methods by employing MSPD and chromatographic techniques in combination or separately. Preliminary tests were conducted to determine some of the parameters that would be used to test MSPD extraction techniques and to chromatograph standards and extracts of benzo (a) pyrene (BAP), benzo (a) pyrene ring-oxidized metabolites, Aroclor …

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The Impact Of Trait Anxiety On Slow-Wave Sleep Processes., Kristi Hulse Fuller Jan 1994

The Impact Of Trait Anxiety On Slow-Wave Sleep Processes., Kristi Hulse Fuller

LSU Historical Dissertations and Theses

The sleep of high anxiety/worry and low anxiety/worry subjects was studied by means of nocturnal polysomnography. Fifteen high anxiety adult subjects were chosen to represent an analog Generalized Anxiety Disorder (GAD) population, and were selected from among individuals scoring within the upper 20th percentile on the trait portion of the State-Trait Anxiety Inventory (STAI) and the Penn State Worry Questionnaire (PSWQ). Fifteen low anxiety subjects were selected from among individuals scoring within the lower 50th percentile on those measures, and were matched with high anxiety subjects for age, sex, race, and Beck Depression Inventory (BDI) scores. Analysis of polysomnography variables …

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Comedy Of Redemption In Three Southern Writers., Carolyn Patricia Gardner Jan 1994

Comedy Of Redemption In Three Southern Writers., Carolyn Patricia Gardner

LSU Historical Dissertations and Theses

The present study discusses a theological motif in the works of three Southern writers, Faulkner, Percy, and Toole, with The Unvanquished, The Moviegoer, and A Confederacy of Dunces being the works chosen for examination. The particular nature of religion in a Southern novel is established early. The Southern novelist is concerned not with sin in the abstract but with the existential angst resulting from it and with the hope of redemption. Also, in the Southern novel, there is humor undergirding even the study of existential angst. God's comedy is the focus of this study of the movement toward redemption in …

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Nurturing In The Novels Of Fanny Burney, Ann Radcliffe, And Ellen Price Wood., Sarah Domingue Spence Jan 1994

Nurturing In The Novels Of Fanny Burney, Ann Radcliffe, And Ellen Price Wood., Sarah Domingue Spence

LSU Historical Dissertations and Theses

Employing attachment theory of contemporary psychology, I explore nurturing in the novels of Fanny Burney, Ann Radcliffe, and Ellen Price Wood. The heroines' need for nurturing manifests itself in diverse aspects of the genre. In the mother's absence, various attachment figures, such as guardians, surrogate mothers, sister/friend relationships serve as nurturer. In Fanny Burney's novels, Evelina, Cecilia, and The Wanderer, fortune and a family name become important societal goals. Joyce Hemlow's and Margaret Doody's works supply criticism and biographical data. In Radcliffe's Gothic novels, The Mysteries of Udolpho, and The Italian, the heroines' attachment bond is analyzed using Ellen Moers' …

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Imagining Workers: The Working-Class Presence In Late Nineteenth-Century American Literature. (Volumes I And Ii)., William Lynn Watson Jan 1994

Imagining Workers: The Working-Class Presence In Late Nineteenth-Century American Literature. (Volumes I And Ii)., William Lynn Watson

LSU Historical Dissertations and Theses

This dissertation examines how late nineteenth-century American realist and naturalist narratives defuse the working-class drive for class self-determination and political power. The texts examined are Rebecca Harding Davis's "Life in the Iron Mills" (1861), Elizabeth Stuart Phelps's The Silent Partner (1871), Henry James's The Princess Casamassima (1886), William Dean Howells's A Hazard of New Fortunes (1890) and Theodore Dreiser's Sister Carrie (1900). Each work is examined in the context of a specific proletarian insurgency that was taking place at roughly the same time, and sometimes the same place, in which the author was writing. Each text bears the impress of …

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Bombesin-Induced Hypothermia At Normal Ambient Temperatures: Contribution Of The Sympathetic Nervous System., John Christopher Barton Jan 1994

Bombesin-Induced Hypothermia At Normal Ambient Temperatures: Contribution Of The Sympathetic Nervous System., John Christopher Barton

LSU Historical Dissertations and Theses

Bombesin is a tetradecapeptide first isolated from frog skin. This peptide has potent effects on core body temperature of rats when administered centrally. Bombesin-induced hypothermia at normal ambient temperatures appears to be dependent upon some pre-existent condition which may be related to nutritional status. Four experiments were conducted to examine if the pre-existing condition for bombesin-induced hypothermia at normal ambient temperatures is primarily related to modulation of sympathetic nervous system activation. Experiment I demonstrated that central bombesin resulted in hypothermia in rats tested at normal ambient temperatures under conditions of ad-libitum access to food only when injected peripherally with the …

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A Comparison Of Verbal And Nonverbal Relaxation Induction Techniques In Neurologically Impaired Rehabilitation Patients., Warren Turner Jackson Iii Jan 1994

A Comparison Of Verbal And Nonverbal Relaxation Induction Techniques In Neurologically Impaired Rehabilitation Patients., Warren Turner Jackson Iii

LSU Historical Dissertations and Theses

This study compared the relaxation responses of neurologically impaired rehabilitation patients during verbal and nonverbal relaxation induction protocols. Seventy inpatients undergoing rehabilitation served as voluntary participants: (a) 20 patients with right-hemisphere brain dysfunction, (b) 20 patients with left-hemisphere dysfunction, and (c) a contrast group of 30 non-neurologically impaired orthopedic/medical patients. In the first phase of the study, all subjects underwent an evaluation that involved completion of screening instruments, self-report measures, and a brief neuropsychological test battery. In the second phase of the study, all subjects underwent two successive relaxation induction protocols: (a) verbal, and (b) nonverbal. Order of presentation was …

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Transcriptional Cis-Regulatory Elements And Trans-Factors Of A Gene For The Seed Storage Protein Beta-Phaseolin From Common Bean (Phaseolus Vulgaris)., Yasushi Kawagoe Jan 1994

Transcriptional Cis-Regulatory Elements And Trans-Factors Of A Gene For The Seed Storage Protein Beta-Phaseolin From Common Bean (Phaseolus Vulgaris)., Yasushi Kawagoe

LSU Historical Dissertations and Theses

In many dicotyledons, the nutrient reserves are stored in the cotyledons. Phaseolin, 7S globulin, is the major seed protein from common bean Phaseolus vulgaris. In vitro transcription assays and gene transfer studies indicate that phaseolin gene expression is regulated primarily at the transcriptional level. In this dissertation, I studied cis- and trans-acting factors that may play a role in the transcriptional regulation of the $\beta$-phaseolin gene. Gel mobility shift and exonuclease III protection assays identified four distinct DNA binding proteins, CAN, AG-1, CA-1, and TATA-box binding protein. Three CANNTG motifs, CACGTG ($-$248/$-$243), CACCTG ($-$163/$-$158), and CATATG ($-$100/$-$95), were found to …

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Preliminary Culture Studies With The Common Snapping Turtle, Chelydra Serpentina: Growth, Nutrition, And Stocking Density., Maxwell Hayden Mayeaux Jan 1994

Preliminary Culture Studies With The Common Snapping Turtle, Chelydra Serpentina: Growth, Nutrition, And Stocking Density., Maxwell Hayden Mayeaux

LSU Historical Dissertations and Theses

This study was conducted to: (1) determine the effects of stocking density and dietary protein:energy ratio on survival, growth, feed consumption, feed conversion, lipo-somatic index, dress-out percentage, and productive protein value of common snapping turtles; and (2) determine the fatty acid composition of muscle, liver, and fat bodies of wild common snapping turtles and common snapping turtles fed a diet of known fatty acid composition. Hatchling common snapping turtles, Chelydra serpentina, were stocked at five or 10 animals per container (29 and 58 turtles/m$\sp2$, respectively), and fed one of seven prepared diets. Six diets contained 30, 35, or 40% protein …

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An Evaluation Of Southern Region Sustainable Agriculture Research And Education (Sare) Program Proposals For The Period 1992-1994., Ellis Mbaka Njoka Jan 1994

An Evaluation Of Southern Region Sustainable Agriculture Research And Education (Sare) Program Proposals For The Period 1992-1994., Ellis Mbaka Njoka

LSU Historical Dissertations and Theses

The purpose of this study was to describe and compare funded and unfunded research proposals submitted to the Southern Region Sustainable Agriculture Research and Education Council between 1992 and 1994. Coding reliability and validity were assessed through a pilot study after which the actual coding was carried out. A census of 32 funded and a simple random sample of 54 unfunded proposals were used for this study. Descriptive statistics (frequencies) were used to describe research themes, sustainable agricultural practices, research categories, funds requested for research, origin of proposals, length of research period, research cooperators, and the occupation of principal investigators. …

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An Ethnographically Informed Case Study Of An Art Teacher Using Right Brain Drawing Instruction., Sara Jan Smith Jan 1994

An Ethnographically Informed Case Study Of An Art Teacher Using Right Brain Drawing Instruction., Sara Jan Smith

LSU Historical Dissertations and Theses

The first and central purpose of this study was to identify and describe one high school art teacher's basis for incorporating into the curriculum right-brain drawing instruction based on Edwards' (1989) book, Drawing on the Right Side of the Brain. The second was to provide art educators with preliminary information about the right-brain theory's popularity that might assist them in future research on a larger scale. Computer searches of ERIC and PSYCH INFO were conducted to locate related research findings dealing with hemispheric function. The empirical findings were analyzed and compared to rationales for employing right-brain teaching strategies. The research …

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Electrophysiological Responses Of Olfactory Receptor And Bulb Neurons To Stimulus Mixtures And To Their Individual Components In The Channel Catfish, Ictalurus Punctatus., Jiesheng Kang Jan 1994

Electrophysiological Responses Of Olfactory Receptor And Bulb Neurons To Stimulus Mixtures And To Their Individual Components In The Channel Catfish, Ictalurus Punctatus., Jiesheng Kang

LSU Historical Dissertations and Theses

Both electro-olfactogram and integrated multiunit receptor responses of populations of olfactory receptor neurons (ORNs) clearly showed that responses to complex mixtures were predictable. Results demonstrated that receptor sites for basic and acidic amino acids, respectively, are independent from those for neutral amino acids and multiple receptor site types with highly overlapping specificities exist for amino acids within each group. Results also confirmed that one mechanism for synergism is the simultaneous activation of relatively independent receptor sites by the components in a mixture, and there was no evidence of mixture suppression. Single ORNs recorded in vivo responded to stimuli with either …

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Production Capabilities And Economic Potential Of An Australian Redclaw Crayfish (Cherax Quadricarinatus) Hatchery In The United States., Paul Boyce Medley Jan 1994

Production Capabilities And Economic Potential Of An Australian Redclaw Crayfish (Cherax Quadricarinatus) Hatchery In The United States., Paul Boyce Medley

LSU Historical Dissertations and Theses

In most of the United States, overwintering redclaw crayfish (Cherax quadricarinatus) is necessary because they cannot withstand winter temperatures. Consequently, hatcheries are required to produce juveniles for pond stocking. The objectives of this study were: (1) identify biological factors affecting production of juvenile redclaw, (2) determine production capabilities of a redclaw crayfish hatchery, and (3) determine the economic potential of redclaw hatcheries. Experiments were designed to assess fecundity and factors influencing spawning such as stocking density, male/female weight, diet, mortality, and cannibalism. Research was also conducted to determine egg development time, hatching success, and juvenile growth and survival. Pooled survival …

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Blood Pressure Reactivity And Emotion Among Borderline Hypertensives, Mild Hypertensives, Diabetic Hypertensives, And Normotensives., Alicia G. Pellegrin Jan 1994

Blood Pressure Reactivity And Emotion Among Borderline Hypertensives, Mild Hypertensives, Diabetic Hypertensives, And Normotensives., Alicia G. Pellegrin

LSU Historical Dissertations and Theses

The purpose of this study was to examine the relationship between emotion and blood pressure levels and variability for 80 Caucasian subjects between the ages of 30 and 65 matched on gender. The subjects were divided into four groups: normotensives, untreated borderline essential hypertensives, treated mild essential hypertensives, and Type II diabetic hypertensives. Subjects completed five psychological measures: the Beck Depression Inventory (BDI); State-Trait Anxiety Inventory-trait anxiety (STAI-Tanx); State-Trait Anger Expression Inventory-trait anger (STAXI-Tang); the ratio of anger-in to anger-out (STAXI-IO); and the Autonomic Nervous System Response Inventory (ANSRI). Subjects then recorded their home blood pressures seven times throughout the …

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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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Hemispheric Function In Motor Skill Learning., Malcolm Maccoll Fairweather Jan 1994

Hemispheric Function In Motor Skill Learning., Malcolm Maccoll Fairweather

LSU Historical Dissertations and Theses

Neuropsychological research examining hemispheric function has recently revealed important, and previously unrecognized, perceptual-motor processing advantages in the left and right hemispheres of the brain. This research has also highlighted verbal-motor disruption problems in the performance of motor skills that may be predictable given an understanding of hemispheric specialization and function. Applied research examining methodology to optimize brain functioning in the learning of motor skills has ignored this neuropsychological research. Instead, applied research interest has focussed upon an individual difference phenomenon known as hemisphericity, which affects approximately 25% of the population. An individual presenting hemisphericity appears biased toward a left or …

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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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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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Physiological Variation In Loblolly Pine (Pinus Taeda L.) As Related To Crown Position And Stand Density., Dennis Albert Gravatt Jan 1994

Physiological Variation In Loblolly Pine (Pinus Taeda L.) As Related To Crown Position And Stand Density., Dennis Albert Gravatt

LSU Historical Dissertations and Theses

Physiological parameters were measured under natural light conditions and needle orientation from towers and walkways erected in the crowns of loblolly pine (Pinus taeda L.) trees. Photosynthetic light response curves, chlorophyll content, nutrient content and specific leaf area were determined for current-year foliage on detached branches. Two silvicultural treatments were randomly assigned to the twelve plots in the fall of 1988. Plots were thinned to a density of 731 trees per hectare or left unthinned, at a density of 2990 trees per hectare. The plots were left unfertilized or fertilized with 744 kg per hectare of diammonium triple superphosphate was …

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Interactions Of Mouse And Bovine Preimplantation Embryos Prior To And After The In Vitro Developmental Block Stage., Leyi Li Jan 1994

Interactions Of Mouse And Bovine Preimplantation Embryos Prior To And After The In Vitro Developmental Block Stage., Leyi Li

LSU Historical Dissertations and Theses

The objective of the present study was to evaluate the effect of post-block mouse and bovine embryos on the development of pre-block embryos around the in vitro developmental block stage. The effect of the post-block embryos on the development of the pre-block embryos was evaluated in culture, in chimeras and in cytoplasmic hybrid embryos. The results indicate that post-block embryos were able to stimulate the development of the pre-block embryos in culture. The stimulatory effect of the post-block mouse and bovine embryos was found not to be species-specific and was synergistic with that of bovine granulosa cells. Chimeric parthenogenetic bovine …

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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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Development Of Nuclear Quadrupole Resonance Spectroscopic And Imaging Methods., Youngil Lee Jan 1994

Development Of Nuclear Quadrupole Resonance Spectroscopic And Imaging Methods., Youngil Lee

LSU Historical Dissertations and Theses

Solution-state nuclear magnetic resonance (NMR) of $\sp1$H and $\sp{13}$C nuclei in molecular species is very common as is solid-state NMR of $\sp{13}$C in a wide variety of substances. Yet many nuclei remain little studied by conventional NMR techniques, for example $\sp2$H, $\sp{11}$B, $\sp{14}$N, $\sp{79}$Br, $\sp{81}$Br, and $\sp{93}$Nb. One method for their study is nuclear quadrupole resonance (NQR). Briefly, the reason that quadrupolar nuclei are difficult to study with conventional NMR techniques is the exceedingly large line widths these nuclei exhibit in high magnetic fields. The first part of my dissertation deals with NQR spectroscopic techniques developed to obtain structural information …

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Breeding Wheat For Resistance To Bacterial Leaf Streak Caused By Xanthomonas Campestris Pv. Translucens., Barry Lawrence Tillman Jan 1994

Breeding Wheat For Resistance To Bacterial Leaf Streak Caused By Xanthomonas Campestris Pv. Translucens., Barry Lawrence Tillman

LSU Historical Dissertations and Theses

Bacterial leaf streak or black chaff caused by Xanthomonas campestris pv. translucens (Xct) can cause yield loss in wheat, especially in warm, high rainfall environments. Bactericidal chemicals have not been effective in controlling the disease, however, host resistance to leaf streak may be an effective control measure. Studies were conducted in the field and greenhouse to determine the relationship between the black chaff and leaf streak symptoms caused by Xct, to quantify yield loss, to calculate the heritability of leaf streak reaction and to evaluate germplasm for resistance to leaf streak. The results showed that 'Florida 304' is very susceptible …

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