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1996

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Low Carbon Dioxide-Inducible Genes And Proteins In Chlamydomonas Reinhardtii., Zhi-Yuan Chen Jan 1996

Low Carbon Dioxide-Inducible Genes And Proteins In Chlamydomonas Reinhardtii., Zhi-Yuan Chen

LSU Historical Dissertations and Theses

At low CO$\sb2$ conditions, C. reinhardtii, like many other green algae, induces a CO$\sb2$ Concentrating Mechanism (CCM) to raise the internal Ci concentration. During the induction, at least five new polypeptides and six different genes are upregulated and some of the corresponding mRNAs or proteins are absent in high CO$\sb2$ requiring mutants. However the identities and functions of these genes are unknown. In this dissertation, I partially characterized four low CO$\sb2$ inducible genes and one low CO$\sb2$ inducible protein LIP-36. The complete cDNA sequences of clones 11I3 and 2I5 are 1311 bp and 985 bp, respectively. Neither of these two …

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Tertiary Recovery Of Oil By Up-Dip Gas Injection., Tammy Theresa Bourgoyne Jan 1996

Tertiary Recovery Of Oil By Up-Dip Gas Injection., Tammy Theresa Bourgoyne

LSU Historical Dissertations and Theses

A tertiary gas injection process denotes the mobilization of waterflood residual oil by gas invasion; whereas, secondary gas injection denotes the displacement of a continuous oil phase by gas. The term up-dip gas injection implies that the gas is injected in the crest of the structure in order to displace fluid down-dip where it can be recovered in a production well; whereas, an attic oil recovery process usually implies a cyclic injection/recovery process using a single well. The objective of this study is to develop a technique for modelling relative permeability in a tertiary gas injection process occurring in a …

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Genetic Components Of (Co)Variance For Postweaning Growth, Carcass Composition And Meat Quality Traits Among Brahman-Influenced Beef Steers., D. H. Denny Crews Jr Jan 1996

Genetic Components Of (Co)Variance For Postweaning Growth, Carcass Composition And Meat Quality Traits Among Brahman-Influenced Beef Steers., D. H. Denny Crews Jr

LSU Historical Dissertations and Theses

A genetic analysis was conducted on preweaning and postweaning growth and carcass composition records from steers produced in two long-term crossbreeding studies. In phase I, Angus (A), Brahman (B), Brangus (BR), Charolais (C) and Hereford (H) sires produced straightbred, F$\sb1$, back-cross, three-breed cross and 2- and 3-breed rotational crossbred steers (N = 708) from 1960 to 1968. Straightbred, F$\sb1$, back-cross, three-breed cross and 2-, 3- and 4-breed rotational crossbred steers (N = 1530) were produced from 1970 to 1988 by A, B, C and H sires in phase II. Direct and maternal additive and non-additive genetic effect contrasts were obtained. …

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Reduction And Management Of Vibrio Vulnificus In Gulf Coast Oyster (Crassostrea Virginica)., Yu-Pin Chen Jan 1996

Reduction And Management Of Vibrio Vulnificus In Gulf Coast Oyster (Crassostrea Virginica)., Yu-Pin Chen

LSU Historical Dissertations and Theses

The AmeriPure Process (AmeriPure Oyster Company, New Orleans, Louisiana), which is a mild heat treatment for a specific time period, proved effective in eliminating Vibrio vulnificus from the Gulf Coast oysters (Crassostrea virginica), thus reducing the risk of possible V. vulnificus infections. The treatment was effective in the reduction of V. vulnificus in both $1.5\times10\sp5$ MPN/g (high artificially contaminated level) and $2.4\times10\sp3$ MPN/g (low artificially contaminated level) to undetectable level (MPN $<$ 3/g). The mild heat treatment also reduced naturally occurring V. vulnificus $(8.9\pm3.7\times10\sp4$ MPN/g) present in shellstock oysters harvested in warmer months to undetectable levels. The D value for V. vulnificus present in shellstock oyster averaged 45.6 $\pm$ 3.3 seconds at the AmeriPure Process temperature. Mild heat treatment can also control aerobic plate count numbers during refrigerated storage (0-2$\sp\circ$C) and extend the shelf-life of raw oysters for at least 7 days over unprocessed samples. Mild heat treated oysters need to be refrigerated (${<}4\sp\circ$C) to ensure the safety and quality, as well as shelf-life. Oysters treated according to the AmeriPure Process when exposed to an average room temperature of 27$\sp\circ$C were found unacceptable after 24 hours due to the high number of aerobic plate count (10$\sp7$ CFU/g) and were considered not safe to eat. Although there was a slight lightening in color, sensory panels, composed of both traditional raw oyster consumers and infrequent consumers, found the treated product to be comparable in flavor, texture and smell to untreated oysters. According to the result of sensory evaluation, the good oyster flavor of treated samples increased and the off-flavor and off-odor of the treated oysters were significantly lower than the control samples after 7 days of storage on ice. Possible temperature variations, which could occur during the transportation and storage were studied in a temperature abuse study. The result showed that no Vibrio vulnificus was recovered and no significant microbiological quality change was observed after 10 hours of exposure to the room temperature of $22\pm2\sp\circ$C.

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Expression Of A Designed Cecropin Analog Gene Using A Baculovirus Vector., Kyusam Choi Jan 1996

Expression Of A Designed Cecropin Analog Gene Using A Baculovirus Vector., Kyusam Choi

LSU Historical Dissertations and Theses

Cecropins are basic, amphipathic peptides with antibacterial activity against many Gram-positive and Gram-negative bacteria. By retaining the positively charged, amphipathic characteristic of cecropin B, a cecropin analog S1, in which 54% of amino acid residues were substituted, was synthesized and shown to possess a broad spectrum of antimicrobial activity. To determine expression of the cecropin analog S1 in Sf9 cells, two gene constructs were designed, and inserted into Autographa californica nuclear polyhedrosis virus under the control of the polyhedrin promoter. One construct, pBS1, consisted of a gene encoding the analog peptide, so that the gene was intended for expression in …

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Thiamine, Riboflavin, And Sensory Stability Of Irradiated Brown Rice., Linda Chamberlain Douglas Jan 1996

Thiamine, Riboflavin, And Sensory Stability Of Irradiated Brown Rice., Linda Chamberlain Douglas

LSU Historical Dissertations and Theses

While brown rice is nutritionally superior to white rice, it is not shelf stable, becoming rancid in a matter of weeks. Preservation by refrigeration or freezing is expensive and not universally available. Therefore, other preservation methods, such as aqueous ethanol extraction of lipids, have been studied to overcome this problem, but these methods also have limitations. The effects of gamma-irradiation on the physicochemical properties and lipase activity in brown rice has been well documented. Gamma-irradiation has been shown to reduce lipase activity, presumably preserving sensory quality. A sensory study of 2 Louisiana grown varieties (Mars and Lemont) of irradiated brown …

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An Information Integration Theory Analysis Of Tax Preparers' Perceived Risk Of Reporting Aggressively On Clients' Income Tax Returns., Velmer Carlene Eddlemon Jan 1996

An Information Integration Theory Analysis Of Tax Preparers' Perceived Risk Of Reporting Aggressively On Clients' Income Tax Returns., Velmer Carlene Eddlemon

LSU Historical Dissertations and Theses

Prior research shows that income tax return preparers influence the income tax compliance decisions of their clients. Information about the risk that income tax return preparers perceive in reporting aggressively on their clients' income tax returns may help the Internal Revenue Service (IRS) reduce the tax gap that exists in the United States today. This study investigates the cognitive algebra that income tax return preparers use to combine the probability of the IRS's assessing penalties for misstatements on their clients' income tax returns with the consequences (penalties, etc.) of those decisions in forming risk perceptions for reporting aggressively on their …

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The Piano Improvisations Of Chick Corea: An Analytical Study., Daniel Alan Duke Jan 1996

The Piano Improvisations Of Chick Corea: An Analytical Study., Daniel Alan Duke

LSU Historical Dissertations and Theses

Though the number of theoretical studies of jazz has increased in recent years, detailed analysis has been applied to only a small fraction of the body of jazz music. Chick Corea's Piano Improvisations are of particular interest: high quality transcriptions are available, the pieces have never been dealt with in detail, and they embody an intriguing mixture of classical and jazz styles. Analysis of Corea's Piano Improvisations raises issues as to what methods are appropriate in the analysis of jazz. There are currently two, somewhat conflicting, schools of thought. Some believe that analytical techniques traditionally applied to classical music (e.g. …

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A Reverse Engineering Methodology For Extracting Parallelism From Design Abstractions., Ravi Chandra Erraguntla Jan 1996

A Reverse Engineering Methodology For Extracting Parallelism From Design Abstractions., Ravi Chandra Erraguntla

LSU Historical Dissertations and Theses

Migration of code from sequential environments to the parallel processing environments is often done in an ad hoc manner. The purpose of this research is to develop a reverse engineering methodology to facilitate systematic migration of code from sequential to the parallel processing environments. The research results include the development of a three-phase methodology and the design and development of a reverse engineering toolkit (abbreviated as RETK) which serves to establish a working model for the methodology. The methodology consists of three phases: Analysis, Synthesis, and Transformation. The Analysis phase uses concepts from reverse engineering research to recover the sequential …

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Investigating The Antecedents Of Youth Unemployment: Individual, Family, And Neighborhood Factors., Mary Smalley Delamatre Jan 1996

Investigating The Antecedents Of Youth Unemployment: Individual, Family, And Neighborhood Factors., Mary Smalley Delamatre

LSU Historical Dissertations and Theses

Young adults are two to three times more likely to be unemployed than older adults, and African-American and poorly educated youths are disproportionately unemployed (U.S. Bureau of Labor Statistics, 1995a). The goal of the present study was to identify precursors of youth unemployment that could be targets of interventions. This longitudinal study explored the relationship between individual, family, and neighborhood factors, measured during junior high and high school, and the employment status of 19-year-old males. Participants were individuals participating in the Pittsburgh Youth Study, a longitudinal study of prosocial and antisocial behavior. This random sample of 506 males were 7th …

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Black Women's Listening: An Ethnography Of Listening In A Southern Inner-City Adult Learning Center., Jennifer Ann Falls Jan 1996

Black Women's Listening: An Ethnography Of Listening In A Southern Inner-City Adult Learning Center., Jennifer Ann Falls

LSU Historical Dissertations and Theses

The research investigated the phenomenon of listening in the context of adult literacy education. The purpose of this study was to explore and describe listening from the points of view of African American women who were teachers and adult learners in a welfare reform program. Using ethnography as a research methodology, this two-year study explored listening as it occurred in the Writing Class, a classroom culture that was situated in a Southern, inner-city adult learning center (Spindler & Spindler, 1982). The study investigated women's assumptions about listening, their own listening behaviors, and the behaviors they expected of listeners. An aim …

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Delights Of The Night And Pleasures Of The Void: Vampirism And Entropy In Nineteenth-Century Literature., Michael James Dennison Jan 1996

Delights Of The Night And Pleasures Of The Void: Vampirism And Entropy In Nineteenth-Century Literature., Michael James Dennison

LSU Historical Dissertations and Theses

This dissertation explores the figure of the vampire in the nineteenth century as a metaphor of disorder, especially as interpreted through the root metaphor of the second law of thermodynamics, also known as entropy. The theoretical approach used in the reading of several vampire texts is an entropy theory of literature, a mostly aesthetic approach of relevance to a comparatist study on vampirism and entropy. Chapter One considers the female vampire in one of her earliest nineteenth-century incarnations, the seductive Clarimonde of Theophile Gautier's La Morte amoureuse. Chapter Two is a study of the vampire women in Edgar Allan Poe's …

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An Examination Of The Effects Of Increased Response Requirement And Delay On Reinforcer Selection., Teresa Lynne George Jan 1996

An Examination Of The Effects Of Increased Response Requirement And Delay On Reinforcer Selection., Teresa Lynne George

LSU Historical Dissertations and Theses

This study examined the effect that increased response requirement, or effort, (Study 1) and delay to reinforcement (Study 2) have on reinforcer selection and response allocation. A reinforcer assessment using a token system was conducted within the classroom setting to determine high and low preference stimuli. The independent variable (effort or delay) was systematically manipulated for high preference stimuli. The results for eight participants indicated that increased levels of effort and delay independently influenced reinforcer preference and response allocation. The results revealed highly idiosyncratic responding to the different levels of the independent variables. The findings for increased response requirement are …

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Extraction And Analysis Of Triazines In Fish Tissues Following A Toxic Exposure: Environmental Factors Affecting Atrazine Toxicity In Fish., Patricia Simmons Gaunt Jan 1996

Extraction And Analysis Of Triazines In Fish Tissues Following A Toxic Exposure: Environmental Factors Affecting Atrazine Toxicity In Fish., Patricia Simmons Gaunt

LSU Historical Dissertations and Theses

Rapid, generic, and environmentally friendly methods for extraction and detection of the pesticides atrazine, cyanazine, metribuzin, and simazine were developed for use in monitoring the cause of pesticide related or suspect fish kills. Further, environmental hypoxia and elevated temperature were studied as possible contributors to the toxicity of atrazine in channel catfish (Ictalurus punctatus) and as synergistic factors to be considered in investigating fish kill events. Incurred residues from the exposure of catfish to atrazine alone or hypoxia or elevated temperature and atrazine were also analyzed. A commercial enzyme-linked immunoassay (ELISA) was utilized as a screening method for the presence …

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Plant Species Diversity And Community Structure In A Louisiana Coastal Marsh., Laura Gough Jan 1996

Plant Species Diversity And Community Structure In A Louisiana Coastal Marsh., Laura Gough

LSU Historical Dissertations and Theses

The factors that control plant species diversity have been examined by many researchers, but with little consensus as to the causes of diversity patterns. Plant diversity has been correlated with disturbance, competition, soil resources, and other variables. In the research presented here, I investigated the relationship between plant species richness and biomass, competition, nutrient enrichment, flooding, salinity, and herbivory in field studies in Louisiana coastal marshes. Biomass alone was a poor predictor of richness in two Louisiana marshes. When environmental variables (flooding, salinity, and soil fertility) were included with biomass in a multiple regression model, 82% of the variance in …

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Synthesis Of Phosphonate Derivatives And Phosphonate Peptide Analogues., Maria De Fatima Fernandez Jan 1996

Synthesis Of Phosphonate Derivatives And Phosphonate Peptide Analogues., Maria De Fatima Fernandez

LSU Historical Dissertations and Theses

A general method for the preparation of a wide variety of phosphonate derivatives, including phosphonamides, thiophosphonamides, thiosphonates, and dithiophosphonates, from reduced phosphorus intermediates has been developed. Esters (or thioesters) of H-phosphinates are converted to the highly reactive phosphonochloridites by non-oxidative activation with dichlorotriphenylphosphorane. The phosphonochloridites react readily with alcohols, amines and thiols and after in situ oxidation or sulfurization, phosphonate derivatives can be isolated in moderate to very good yields (47-85%). This method was used to synthesize a thiophosphonate dipeptide, Boc-Val-$\Psi$(P(S)(OtBu)O) Ala-OCH$\sb3$ (15b), two thiophosphonamide dipeptides, Boc-Val-$\Psi$ (P(S)(OtBu)NH) Gly-OCH$\rm\sb2CH\sb3$ (16b) and Fmoc-Aib-$\Psi$ (P(S)(OBn)NH) Gly-OCH$\rm\sb2CH\sb3$ (20), and two phosphonate dipeptides, Fmoc-Aib-$\Psi$ …

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The Effects Of Performance Feedback On Treatment Integrity In School-Based Consultation., Kevin Michael Jones Jan 1996

The Effects Of Performance Feedback On Treatment Integrity In School-Based Consultation., Kevin Michael Jones

LSU Historical Dissertations and Theses

This study examined the relative effectiveness of traditional consultation, with and without performance feedback, on treatment integrity. Six teachers employed in a residential treatment community were responsible for treatment implementation. Treatment integrity was defined as the percentage of 2 min intervals during which contingent teacher attention for student on-task behavior was directly observed. Teacher and child behavior were monitored across baseline, traditional consultation, and consultation with performance feedback conditions in a multiple baseline design. In only one of six cases did mean levels of contingent teacher attention, following a Problem Identification Interview and Problem Analysis Interview (Bergan, 1977), exceed 35%. …

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A Polynomial Invariant Of Links In A Solid Torus., Jaehoo Park Kim Jan 1996

A Polynomial Invariant Of Links In A Solid Torus., Jaehoo Park Kim

LSU Historical Dissertations and Theses

A polynomial invariant of links in a solid torus is defined through an algebra $H\sb{n}({1\over2}$). $H\sb{n}({1\over2}$) modulo by an ideal is the type-B Hecke algebra. This invariant satisfies the $S\sb3$-skein relation as in the 1-trivial links case of dicromatic link invariant discovered by J. Hoste and M. Kidwell. A link in the solid torus is isotopic to a closed braid which is a braid in the braid group of the annulus. We find an invariant of links through a represention $\pi$ of the braid group of the annulus to the algebra $H\sb{n}({1\over2}$). A trace map X is defined on a …

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Influence Peddling And The Municipal Market: An Investigation Of Political Contributions And Accounting Disclosures., Steven M. Filling Jan 1996

Influence Peddling And The Municipal Market: An Investigation Of Political Contributions And Accounting Disclosures., Steven M. Filling

LSU Historical Dissertations and Theses

The municipal bond market is widely perceived to be amenable to influence peddling between parties to bond transactions. One of the primary concerns of both regulators and investors is the relationship between political contributions by bond market participants and the volume and profitability of bond market business engaged in by those participants. This study uses publicly available data from the state of Louisiana to provide evidence concerning the relationship between contributions made by bond market participants and bond business awarded or influenced by recipients of those contributions. Contributions by bond market players to officials likely to possess influence over bond …

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Adaptive Harmonic Blocking Compensators., Shih-Min Hsu Jan 1996

Adaptive Harmonic Blocking Compensators., Shih-Min Hsu

LSU Historical Dissertations and Theses

This dissertation explores a new method of adaptive compensation and harmonic suppression in distribution systems. The compensator under development and investigation integrates a harmonic blocking compensator (HBC) with an adaptive balancing compensator (ABC) resulting in an adaptive harmonic blocking compensator (AHBC). Such a compensator can be used for compensating reactive power, for symmetrizing supply currents, for protecting the distribution system against load generated current harmonics and, consequently, the voltage harmonic distortion caused by non-linear loads. Harmonic blocking compensators are designed for compensating fixed loads, and they are not adaptive devices, while the adaptive capability of compensators is becoming more and …

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Chemical Effects On Microbial And Sensory Qualities Of Catfish In Planktonic And Dynamic Systems., Michael Adrain Land Jan 1996

Chemical Effects On Microbial And Sensory Qualities Of Catfish In Planktonic And Dynamic Systems., Michael Adrain Land

LSU Historical Dissertations and Theses

Listeria monocytogenes has the potential to be a serious pathogen for the compromised health segment of our population (immunocompromised, young, elderly and the pregnant). While the infectious dose is generally believed to be high 1.0 $\times$ 10$\sp6$, infectious dosages of 1.0 $\times$ 10$\sp3$ have been reported. Listeria monocytogenes poses a threat because of several factors: ubiquity in nature, isolation from fresh/salt waters, soil, ruminates and 17% of the human population. Listeria monocytogenes can colonize surfaces within 20 minutes, evade sanitizing, and is capable of growth from 37$\sp\circ$C to below refrigeration temperature. Fish and seafoods are high in water activity and …

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Social Skills In Adults With Severe Disabilities., Linda Ann Leblanc Jan 1996

Social Skills In Adults With Severe Disabilities., Linda Ann Leblanc

LSU Historical Dissertations and Theses

Recently, the concepts of social competence and social skills have become important aspects of the evolving definitions of mental retardation (Siperstein, 1992). However, few studies have focused on social behavior in adults with severe developmental disabilities, despite the proliferation of research in assessment and training of social skills with other populations. This study examined the psychometric properties of the Matson Evaluation of Social Skills for Individuals with Severe Retardation (MESSIER)--a scale designed to measure social skills in adults with severe developmental disabilities. A reliable and valid measure of social skills for this population would be useful in determining target behaviors …

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Design And Analysis Of Reduced-Connection Multiple Bus Systems: A Probabilistic Approach., Najmul Karim Jan 1996

Design And Analysis Of Reduced-Connection Multiple Bus Systems: A Probabilistic Approach., Najmul Karim

LSU Historical Dissertations and Theses

In the dissertation we have proposed the first systematic and formal approach to reduce connectivity of general purpose multiple bus systems. The approach is based on a probabilistic technique. The hypothesis on which this dissertation is based stipulates that bus connectivity in multiple bus systems can be much reduced by removing connections which are only needed for highly improbable request patterns. With this approach, performance comparable to that of the original multiple bus system could be achieved while significantly reducing memory bus connectivity. The new architecture thus obtained (Probabilistically load reduced connection multiple bus system, or PRMB in short) might …

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Physical And Functional Characterization Of Long Terminal Repeat Of Equine Infectious Anemia Virus., Soo Ho Kim Jan 1996

Physical And Functional Characterization Of Long Terminal Repeat Of Equine Infectious Anemia Virus., Soo Ho Kim

LSU Historical Dissertations and Theses

The U3 region of long terminal repeat (LTR) of equine infectious anemia virus (EIAV) contains transcriptional regulatory elements. To identify the elements in prototype (P), fetal donkey dermal cell-adapted (A), and two variant (V) EIAV LTRs, DNase I footprinting, gel shift, and transient gene expression assays were performed. The assays used U937 monocytic cells which can be induced into macrophages by 12-O-tetradecanoylphorbol-13-acetate (TPA). For study of AP1 sites, c-Jun/AP1 was also used. Footprinting with nuclear extracts from TPA-induced and uninduced U937 cells localized methylated DNA-binding protein (MDBP), PEA2, AP1, PU.1, and CCAAT enhancer-binding protein (C/EBP) sites as common elements in …

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Dinitropyrenes: Nitroreduction Processes And Evaluation Of Indices Of Exposure., Matthew Jerome Krautmann Jan 1996

Dinitropyrenes: Nitroreduction Processes And Evaluation Of Indices Of Exposure., Matthew Jerome Krautmann

LSU Historical Dissertations and Theses

Investigations were conducted to identify biomarkers of exposure to dinitropyrenes (DNPs), which are mutagenic and carcinogenic residues of incomplete combustion. One possible biomarker, a DNP-protoporphyrin IX adduct, was not found in analytically useful quantities in liver tissue or in bile. Clastogenicity, a biomarker of effect, also was found to be absent in marrow cells following subchronic exposure of rats to DNPs by gavage. Solubility studies, used as a basis for dosing guidelines, revealed that DNPs are relatively insoluble in both aqueous and lipid tissue compartments. Calculated log P values indicated that the reduced metabolites of DNPs probably are more soluble …

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Allocation Of Two Dimensional Parts Using A Shape Reasoning Heuristic., Henry Joseph Lamousin Iii Jan 1996

Allocation Of Two Dimensional Parts Using A Shape Reasoning Heuristic., Henry Joseph Lamousin Iii

LSU Historical Dissertations and Theses

A technique is outlined for the allocation of irregular parts onto arbitrarily shaped resources. Placements are generated by matching complementary shapes between the unplaced parts and the remaining areas of the stock material. The part and resource profiles are characterized to varying levels of detail using geometric "features". Information contained in the features is used at each stage of processing to intelligently select and place parts on the resource. Techniques for the efficient handling of complex profiles and other practical implementation issues are described. The utility of the proposed approach is verified using diverse problems from a marine fabrication facility. …

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De Plana Musica And Introductio Musice: A Critical Edition And Translation, With Commentary, Of Two Treatises Attributed To Johannes De Garlanda., Nigel Gwee Jan 1996

De Plana Musica And Introductio Musice: A Critical Edition And Translation, With Commentary, Of Two Treatises Attributed To Johannes De Garlanda., Nigel Gwee

LSU Historical Dissertations and Theses

Johannes de Garlandia (fl. 1250, Paris), author of the seminal De mensurabili musica, has been linked to two plainchant treatises, De plana musica and Introductio musice. This dissertation presents the first critical edition and translation, with commentary, of these two treatises. It includes an introduction, Latin texts of the two treatises with English translations in parallel columns, critical apparatus, commentary, and appendices. De plana musica is transmitted in three sources, Introductio musice in four. The text of Introductio musice established here is shorter than that printed by Coussemaker (CS, 1:157-75), who included in the final portion of his text several …

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The Effect Of Demand Forecasting On Production Policies And Coordination In Periodic Review Production Systems., Chih-Ming Lee Jan 1996

The Effect Of Demand Forecasting On Production Policies And Coordination In Periodic Review Production Systems., Chih-Ming Lee

LSU Historical Dissertations and Theses

We consider a sequential decision process in a periodic review production system. At the beginning of each period, marketing decides how much money to be invested in demand forecasting. After its decision, marketing obtains the forecast and passes the forecast to production, which then determines production quantity. Centralized and decentralized models are formulated. In the centralized model, the two divisions make their decisions by considering the total profit of the company. In the decentralized model, marketing pays production a unit transfer price for every product sold. Three types of policies about the unit transfer price are considered. In the company …

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Jordan Algebras And Lie Semigroups., Yongdo Lim Jan 1996

Jordan Algebras And Lie Semigroups., Yongdo Lim

LSU Historical Dissertations and Theses

For a Euclidean Jordan algebra V with the corresponding symmetric cone $\Omega$, we consider the semigroup $\Gamma\sb{\Omega}$ of elements in the automorphism group $G(T\sb{\Omega})$ of the tube domain $V$ + $i\Omega$ which can be extended to $\Omega$ and maps $\Omega$ into itself. A study of this semigroup was first worked out by Koufany in connection to Jordan algebra theory and Lie theory of semigroups. In this work we give a new proof of Koufany's results and generalize up to infinite dimensional Jordan algebras, so called $JB$-algebras. One of the nice examples of the semigroup $\Gamma\sb{\Omega}$ is from the Jordan algebra …

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Analyzing Traffic And Multicast Switch Issues In An Atm Network., Youngcheol Oh Jan 1996

Analyzing Traffic And Multicast Switch Issues In An Atm Network., Youngcheol Oh

LSU Historical Dissertations and Theses

This dissertation attempts to solve two problems related to an ATM network. First, we consider packetized voice and video sources as the incoming traffic to an ATM multiplexer and propose modeling methods for both individual and aggregated traffic sources. These methods are, then, used to analyze performance parameters such as buffer occupancy, cell loss probability, and cell delay. Results, thus obtained, for different buffer sizes and number of voice and video sources are analyzed and compared with those generated from existing techniques. Second, we study the priority handling feature for time critical services in an ATM multicast switch. For this, …

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