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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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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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Convention Unity Speeches., Lynna L. Cherry Jan 1994

Convention Unity Speeches., Lynna L. Cherry

LSU Historical Dissertations and Theses

National nominating conventions serve a number of purposes for their respective parties. Most notably, the convention officially bestows the party nomination on the candidate for president. Recent political conventions have been carefully orchestrated to create an air of party unity and solidarity behind the respective candidate. Beginning with the 1980 Democratic National Convention, there has been a new occurrence at these conventions. Contenders who were not going to receive the party nomination nor were they going to be the running mate for the party nominee have been granted podium time (usually during prime time of the convention) ostensibly for the …

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Role Of Curved Dna In Promoter Recognition With Bacillus Subtilis And Escherichia Coli Rna Polymerase., Cheryl Anne Nickerson Jan 1994

Role Of Curved Dna In Promoter Recognition With Bacillus Subtilis And Escherichia Coli Rna Polymerase., Cheryl Anne Nickerson

LSU Historical Dissertations and Theses

Intrinsically curved DNA upstream of the RNA polymerase binding site, the promoter, influences transcription in Bacillus subtilis. In this study, curved DNA upstream of the $-$35 region was examined for the ability to influence transcription in Escherichia coli and B. subtilis through the use of hybrid promoters. These promoters were constructed by substituting the curved DNA from two B. subtilis promoters, Bal129 and Alu156, for the DNA upstream of the $-$35 region in the lambda phage promoters $p\sb{\rm R}$ and $p\sb{\rm L}$. The hybrid promoters were designated Bal$p\sb{\rm R}$, Alu$p\sb{\rm R}$, Bal$p\sb{\rm L}$, and Alu$p\sb{\rm L}$. Using transcriptional fusions between …

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"A Proper Little Lady" And Other Twisted Tales Of Adolescent Femininity., Natalie Guice Adams Jan 1994

"A Proper Little Lady" And Other Twisted Tales Of Adolescent Femininity., Natalie Guice Adams

LSU Historical Dissertations and Theses

The purpose of this ethnographic study is to explore the stories told by four adolescent females about how they construct a gendered identity amidst the conflicting and contradictory expectations of them as adolescents and as females. After situating the study within a feminist poststructuralist framework, the dominant cultural scripts that have dictated what constitutes normative adolescent and feminine behavior are examined. Of particular importance to this study is the way in which these dominant discourses of femininity and adolescence are manifested in the middle school that the participants attend, especially in the school's attempt to mold its female students into …

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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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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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An Adaptive Finite Element Methodology For The High-Performance Computer Simulation Of Multiphase Flow Processes., Donald J. Morton Jr Jan 1994

An Adaptive Finite Element Methodology For The High-Performance Computer Simulation Of Multiphase Flow Processes., Donald J. Morton Jr

LSU Historical Dissertations and Theses

A methodology has been developed for the computer simulation of multiphase flow processes in porous media. The solutions to the nonlinear equations describing these processes are approximated by Galerkin's method on the spatial dimensions and the finite difference method on the temporal dimension. Due to the transient nature of discontinuities in the spatial domain, dynamic mesh refinement (and unrefinement) techniques, based on the maintenance of a 1-irregular mesh, are employed on a two dimensional mesh to produce fine resolution in regions of activity and coarse resolution elsewhere. Our unique approach is tested by comparing computed results with data from laboratory …

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Effect Of Temperature, Cell Concentration, And Split Dose Gamma Radiation On The Radiosensitivity Of Listeria Monocytogenes., Linda S. Andrews Jan 1994

Effect Of Temperature, Cell Concentration, And Split Dose Gamma Radiation On The Radiosensitivity Of Listeria Monocytogenes., Linda S. Andrews

LSU Historical Dissertations and Theses

Among food-borne pathogens, Listeria monocytogenes is one of the more resistant to food processing methods, including irradiation. USFDA approval for irradiation of processed meat and seafood products likely to contain Listeria spp. is $<$3 kGy gamma radiation. The incidence of L. monocytogenes in food products varies between 5-30% and at levels $<10\sp4$ CFU/g. With the capacity of this bacterium to multiply at refrigeration temperatures and the zero tolerance level mandated by the USFDA it becomes imperative to maximize the efficiency of the irradiation process. The first purpose of this study was to determine if initial cell concentration and/or temperature at time of irradiation influences the radiosensitivity of L. monocytogenes. Secondly, to determine whether split dose application would effect the radiation response of this bacterium. Concentrations of 10$\sp3,$ 10$\sp6$ and 10$\sp9$ cfu/ml of L. monocytogenes Scott A, were suspended in tryptic soy broth and exposed to 0-5 kGy gamma (1.25MeV) radiation at 20, 4, and -80$\sp\circ{\rm C}.$ Split doses were applied in equal portions to initial cell concentrations of 10$\sp6$ and 10$\sp9$ at the same temperatures. Surviving cells under the various conditions were enumerated and irradiation D-values were calculated from linear regression curves. At all temperatures, cell concentrations of 10$\sp3{\rm CFU/ml}$ were reduced to non recoverable levels with 2 kGy gamma radiation. The irradiation D-value of 0.43 kGy for frozen (-80$\sp\circ{\rm C})$ cultures of 10$\sp6$ CFU/ml was significantly lower (p $<$ 0.05) than the D-values (0.58 and 0.62 kGy) for the same cell concentration at the other two temperatures (20$\sp\circ$ and 4$\sp\circ{\rm C},$ respectively). For higher cell concentration of 10$\sp9$ cfu/ml, a D-value of 0.42 kGy was obtained for both 4$\sp\circ{\rm C}$ and -80$\sp\circ{\rm C}$ these were significantly lower (p $<$ 0.05) than 0.50 kGy for 20$\sp\circ{\rm C}$ suspensions. With both cell concentrations, the lowest D-values were obtained when cells were irradiated in the frozen state indicating a that primary cell damage was due to direct effects of irradiation. Split doses of 1 and 2 hours time between fractions approached the generation times for this bacterium and were significantly reduced at 20$\sp\circ{\rm C}.$ However, there was no consistent trend in reductions at 4$\sp\circ$ or -80$\sp\circ{\rm C}.$ Split dose application of irradiation to food pathogens should be further explored.

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Survival And Recovery Of Methanotrophic Bacteria Starved Under Oxic And Anoxic Conditions, P. Roslev, G. M. King Jan 1994

Survival And Recovery Of Methanotrophic Bacteria Starved Under Oxic And Anoxic Conditions, P. Roslev, G. M. King

Faculty Publications

The effects of carbon deprivation on survival of methanotrophic bacteria were compared in cultures incubated in the presence and absence of oxygen in the starvation medium. Survival and recovery of the examined methanotrophs were generally highest for cultures starved under anoxic conditions as indicated by poststarvation measurements of methane oxidation, tetrazolium salt reduction, plate counts, and protein synthesis. Methylosinus trichosporium OB3b survived up to 6 weeks of carbon deprivation under anoxic conditions while maintaining a physiological state that allowed relatively rapid (hours) methane oxidation after substrate addition. A small fraction of cells starved under oxic and anoxic conditions (4 and …

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Apprecitating Gall Boswells Frank Wit, Colby H. Kullman Jan 1994

Apprecitating Gall Boswells Frank Wit, Colby H. Kullman

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Characterization And Application Of Colloidal Gas Aphrons For Groundwater Remediation., Pradeep Gopal Chaphalkar Jan 1994

Characterization And Application Of Colloidal Gas Aphrons For Groundwater Remediation., Pradeep Gopal Chaphalkar

LSU Historical Dissertations and Theses

This study examines the basic properties of colloidal gas aphrons (CGAs) that are relevant to their applications in soil and groundwater decontamination. Results of experiments on the applicability of CGAs in the removal of organics from aqueous solutions and in the subsurface environment are presented. CGAs are dispersed microbubbles in an aqueous surfactant solution. When introduced into an aqueous system, CGAs undergo variation in sizes and numbers with time due to coalescence and/or creaming. To address the dynamic changes in the size, a particle size analyzer was utilized to characterize the suspension. An increase in the concentration of surfactant was …

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Lsu General Catalog 1994-1995, Louisiana State University And Agricultural And Mechanical College Jan 1994

Lsu General Catalog 1994-1995, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.

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Chromosome And Sperm Size Of Holsteins With And Without Bovine Leukocyte Adhesion Deficiency, H. C. Steinholt, J. E. Chandler, R. A. Baron, R. W. Adkinson Jan 1994

Chromosome And Sperm Size Of Holsteins With And Without Bovine Leukocyte Adhesion Deficiency, H. C. Steinholt, J. E. Chandler, R. A. Baron, R. W. Adkinson

Faculty Publications

The objective was to evaluate bull differences in chromosomal and spermatozoal areas related to the occurrence of the bovine leukocyte adhesion deficiency syndrome. Lymphocyte chromosomes from 30 Holstein bulls and 2 Holstein heifers were measured using image analysis and computer-enhanced video-microscopy. Spermatozoal head areas from 29 of the 30 bulls were measured. Autosomal rank was based on decreasing area. Average total autosomal areas were not the same across bulls. One group of bulls had significantly smaller average chromosomal areas than the others; this group carried bovine leukocyte adhesion deficiency syndrome. Area measures of spermatozoal heads showed that bulls with bovine …

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Comparative Hepatic Oxidative Biotransformation In Domestic Avian Species., June Lynn Sutherlin Jan 1994

Comparative Hepatic Oxidative Biotransformation In Domestic Avian Species., June Lynn Sutherlin

LSU Historical Dissertations and Theses

This study characterized the oxidative biotransformation capacity of the hepatic cytochrome P-450 system of selected avian species representing the Galliformes (chicken, turkey and Japanese quail) and Anseriformes (goose, Pekin duck, Khaki Campbell duck, and Muscovy duck) orders. Two objectives were addressed; first, important biotransformation pathways were evaluated in economically major and minor food-producing avian species to provide a framework on which to base drug approval decisions in these species. Second, the potential use of the selected species as sentinel organisms utilizing cytochrome P-450 induction as a biomarker of environmental chemical exposure was evaluated. The male rat was utilized for the …

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Susceptibility In Soybean To Red Crown Rot And Characteristics Of Virulence In Calonectria Crotalariae., Ki Deok Kim Jan 1994

Susceptibility In Soybean To Red Crown Rot And Characteristics Of Virulence In Calonectria Crotalariae., Ki Deok Kim

LSU Historical Dissertations and Theses

Susceptibility in soybean to red crown rot was investigated and virulence in Calonectria crotalariae was characterized. The following areas were examined: (i) variability and stability in virulence among C. crotalariae isolates, (ii) disease reaction in soybean cultivars in a greenhouse inoculation technique, (iii) disease development on hosts of different ages at time of inoculation, (iv) cultural characteristics and presence of dsRNA in isolates, and (v) the involvement of a toxin(s) in the C. crotalariae/soybean system. A wide range in virulence of isolates of C. crotalariae was observed, and soybean isolates were more virulent on soybean than were peanut isolates. Virulence …

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Modeling Transport Of Non Aqueous Wastes In Unsaturated Soils., Dharmesh Vinaychandra Doshi Jan 1994

Modeling Transport Of Non Aqueous Wastes In Unsaturated Soils., Dharmesh Vinaychandra Doshi

LSU Historical Dissertations and Theses

In evaluating risks associated with chemical spills on the ground surface or leaks from underground storage tanks, it is required to know the extent and degree of contamination in the subsurface. In many cases pure organics are spilled and due to their low miscibility with water they remain pure or concentrated for some distance or time from the source. This dissertation is aimed at developing a model of the multiphase (air, water, organic) migration processes. The particular focus is on modeling organic infiltration in the unsaturated zone where the transport is largely vertical. Sand-column experiments using a variety of immiscible …

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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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Temporal And Synoptic Analyses Of Heavy Rainfall In The Southeastern United States., Barry David Keim Jan 1994

Temporal And Synoptic Analyses Of Heavy Rainfall In The Southeastern United States., Barry David Keim

LSU Historical Dissertations and Theses

The abundance of recent heavy rainstorms in the southeastern United States has raised concerns that excessive rainstorms may be increasing in frequency and magnitude across the region. For this reason, the heavy rainfall climatology was examined to determine whether long-term trends exist within the historic climate record. In addition, the synoptic conditions leading to these events were examined. The synoptic weather patterns that generated storm events over a 75 mm (3 inches) threshold were classified using an all-inclusive manual weather typing system. Heavy rainfall events in the region were generated primarily by frontal weather systems (79 percent) followed by tropical …

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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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Biochemical Oxygen Demand Removal Reaction Rate Constants In Microbial Rock Plant Filter Treatment Systems., Bhaskar Kura Jan 1994

Biochemical Oxygen Demand Removal Reaction Rate Constants In Microbial Rock Plant Filter Treatment Systems., Bhaskar Kura

LSU Historical Dissertations and Theses

Microbial Rock Plant Filters (MRPFs) are capable of treating municipal wastewaters, particularly for the removal of biochemical oxygen demand (BOD) in an economic manner. There is no consensus on proper design for these treatment systems due to the limited performance data available on these recently developed systems (Reed, 1993). Variability of the BOD removal reaction rate constant is an important observation which has bearing on the design of these systems. Variability of BOD removal reaction rate constant along the filter length was modeled as a function of the variable microbial activity. The microbial activity was estimated using a modified fluorescein …

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Tales From The Magazine Prison House: Democracy And Authorship In American Periodical Fiction, 1825-1850., Laurence Scott Peeples Jan 1994

Tales From The Magazine Prison House: Democracy And Authorship In American Periodical Fiction, 1825-1850., Laurence Scott Peeples

LSU Historical Dissertations and Theses

In the second quarter of the nineteenth century, weekly and monthly periodicals emerged as the primary forum for new American literature. In several respects periodicals reflected the multiplicity of rapidly growing Eastern cities: they assembled a variety of "voices" in single texts and maintained a dialogue between editors and readers. At the same time, the magazines sought to "create" a more homogenous middle-class audience that would equate the capitalist transformation of American society with the "natural" progress of democracy. This dissertation examines that process by analyzing the writing and careers of four "magazinists": Nathaniel Parker Willis, Caroline Kirkland, Lydia Maria …

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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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Support For Higher Education In The 1992-1993 Louisiana Legislature., Sandra Bernard Dugas Jan 1994

Support For Higher Education In The 1992-1993 Louisiana Legislature., Sandra Bernard Dugas

LSU Historical Dissertations and Theses

The public higher education system in Louisiana is facing a variety of problems. The Louisiana Legislature plays a vital role in the determination of policy regarding higher education in the state. Legislators have the responsibility of addressing current and emerging issues and finding solutions to problems. The purpose of the study was to determine the voting record of members of the 1992 Louisiana Legislature on issues facing higher education so as to infer legislative support for higher education. This purpose was accomplished by studying roll call votes on bills considered important to higher education in relation to personal characteristics of …

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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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Finite Element Analysis Of Damage And Elastic-Plastic Behavior Of Metal Matrix Composites., Taehyo Park Jan 1994

Finite Element Analysis Of Damage And Elastic-Plastic Behavior Of Metal Matrix Composites., Taehyo Park

LSU Historical Dissertations and Theses

Damage and elasto-plastic analysis is of particular importance to metal matrix composites since the onset of damage and plastic yielding begins very early in the loading process as compared to the composites ultimate strength. Two types of damage models are proposed using micromechanical model. A finite element analysis is presented for quantifying damage and predicting the failure loads of the center-cracked laminate metal matrix composite plates. Both the overall damage model which accounts for all types of damages as a single damage variable and the local damage model which uses the local constitutive damage relations for each of the matrix …

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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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