Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

LSU Historical Dissertations and Theses

Discipline
Keyword
Publication Year

Articles 1501 - 1530 of 7796

Full-Text Articles in Entire DC Network

Diallel Analyses Of Percent Kernel Infection By Aspergillus Flavus And Ear Moisture Loss Rate In Maize., Yudong Zhang Jan 1995

Diallel Analyses Of Percent Kernel Infection By Aspergillus Flavus And Ear Moisture Loss Rate In Maize., Yudong Zhang

LSU Historical Dissertations and Theses

Preharvest infection by Aspergillus flavus Link ex Fries and subsequent aflatoxin contamination of maize (Zea mays L.) grain are major production problems. Ear moisture loss rate (EMLR) is an important component of hybrid performance and maturity, and to some extent determines the suitability of a hybrid for a geographical area. A 10-parent diallel experiment was conducted in 1992 and 1994 to study the genetic nature of both percent kernel infection (PKI) by A. flavus and EMLR. General combining ability (GCA, V$\sb{\rm g}$), specific combining ability (SCA, V$\rm\sb{s}$), and reciprocal mean squares for PKI were significant. The ratio $\rm 2V\sb{g}/(2V\sb{g}+V\sb{s}$) was …

Go to article

Synthesis, Characterization, And Diels-Alder Reactivity Of Polymers Containing The 2,3,6,7-Anthracenetetracarboxyl Unit., James Larry Morris Jan 1995

Synthesis, Characterization, And Diels-Alder Reactivity Of Polymers Containing The 2,3,6,7-Anthracenetetracarboxyl Unit., James Larry Morris

LSU Historical Dissertations and Theses

Anthracene is a fluorescent molecule that undergoes chemical reactions as a Diels-Alder diene. Incorporation of the anthracene nucleus into a polymer system imparts upon it the characteristics of anthracene. This work in concerned with the synthesis of a suitable 2,3,6,7-anthracenetetracarboxylic acid based monomer. The monomer is then polymerized and the resultant polymer is crosslinked in a Diels-Alder reaction. The synthesis of 2,3,6,7-anthracene derivatives is underdeveloped. The difficulty in the synthesis of these compounds has probably precluded their development. Herein is described the synthesis of 2,3,6,7-anthracenetetracarboxylic acid in three simple steps inexpensively and in high yield. Older methods required more steps …

Go to article

The Dual Voices Of The Civil Rights Movement: The Heroic Narratives Of Martin Luther King, Jr. And Malcolm X., Kerry Paul Owens Jan 1995

The Dual Voices Of The Civil Rights Movement: The Heroic Narratives Of Martin Luther King, Jr. And Malcolm X., Kerry Paul Owens

LSU Historical Dissertations and Theses

Since reconstruction African-American leaders have embodied conflicting aspirations. While some leaders like Booker T. Washington and Frederick Douglass urged complete assimilation, others like W. E. B. DuBois and Marcus Garvey have preached autonomy and separation. These leaders have tended to serve as icons for rival programs; their rhetoric as authoritative, and their lives as inspired models for future leaders. This dissertation examines the hagiography of the two most famous leaders of the late 20th century, Martin Luther King, Jr. and Malcolm X. It argues that their rhetoric was undergirded by the myth of the heroic quest and that their lives …

Go to article

Toward A New Concept Of Local Curriculum., Yonghwan Lee Jan 1995

Toward A New Concept Of Local Curriculum., Yonghwan Lee

LSU Historical Dissertations and Theses

This study aims at exploring the possibility of a new concept of local curriculum. On the basic recognition that the New National Curriculum in Korea which is allegedly localized is not a localized one, this study analyzes the problems of Korean education and the New National Curriculum, and examines the new Korean curriculum in relation to debates on curriculum localization in the United States and England. The debates in the United States and England have been proved to be centered around the relinquishment of power from the central government to the local educational authorities and schools. To search for a …

Go to article

Tectonic Subsidence Of The Cretaceous Western Interior Basin, United States., Ming Pang Jan 1995

Tectonic Subsidence Of The Cretaceous Western Interior Basin, United States., Ming Pang

LSU Historical Dissertations and Theses

The tectonic subsidence history recorded in middle Cenomanian to early Campanian (96 to 80 Ma) strata in the U.S. Cretaceous Western Interior basin was studied by applying two-dimensional flexural backstripping techniques to six regional stratigraphic sections across different segments of the basin. Results indicate that tectonic subsidence over the 16 m.y. study interval consists of two distinct components: a westward-increasing flexural subsidence confined within a few hundred kilometers of the thrust belt, and a spatially uniform "residual" subsidence that affected the entire basin. The residual subsidence does not represent signals of eustatic sea level changes but instead reflects epeirogenic movements …

Go to article

The Role Of Fecal Pellets In The Flux Of Carbon To The Sea Floor On A River-Influenced Continental Shelf Subject To Hypoxia., Naureen Aziz Qureshi Jan 1995

The Role Of Fecal Pellets In The Flux Of Carbon To The Sea Floor On A River-Influenced Continental Shelf Subject To Hypoxia., Naureen Aziz Qureshi

LSU Historical Dissertations and Theses

The Louisiana continental shelf near the Mississippi and Atchfalaya River deltas is a stratified and highly productive coastal system characterized by the largest hypoxic (dissolved oxygen $<$2 mg l$\sp{-1}$) zone in the western Atlantic Ocean. Carbon export from surface waters in the form of sedimenting zooplankton fecal pellets was examined to determine its importance in the formation and maintenance of oxygen deficiency in the bottom waters. Two sediment traps (5-6 and 15 m) were deployed in 1991 and 1992 in 20 m water depth within an area of chronic and seasonally severe hypoxia. I determined the fecal pellet number and carbon flux, and total carbon flux from the surface waters, the percent primary production exported as fecal pellets, and the potential for fluxed fecal pellet carbon to support bottom water hypoxia. I also quantitatively sampled the water column at discrete depths for fecal pellets and zooplankton to determine potential source organisms and their seasonal, diel and spatial variation. The highest densities of total organisms, copepods and copepod nauplii occurred during March and April (1992), when chlorophyll a concentrations in surface waters were highest, and decreased in summer and fall. The abundance of fecal pellets was positively correlated with total organisms, copepods and copepod nauplii, the likely source of fecal pellets. The fluxes of total particulate material, organic carbon, organic nitrogen, fecal pellet carbon and phytoplankton carbon varied similarly between seasons, and was lowest in summer and highest in spring. The fluxes were greater in 1991 than in 1992. Seasonal variations in fecal pellet number and carbon flux were positively correlated with indicators of high surface water productivity in 1991, but not in 1992. The flux of fecal pellets from surface to bottom waters accounted for 55% of the particulate material exported vertically, exceeded phytoplankton carbon fluxes, and was high enough to deplete the bottom water oxygen reserves in spring. The results support the hypothesis that the development of summer hypoxia is associated with the decomposition of organic matter accumulated in spring primarily by the sedimentation of a phytoplankton bloom via fecal pellets, and not as intact phytoplankton cells.

Go to article

A Phytochemical Study Of Members Of The Genus Magnolia (Magnoliaceae) And Biosynthetic Studies Of Secondary Metabolites In Asteraceae Hairy Root Cultures., Qi Song Jan 1995

A Phytochemical Study Of Members Of The Genus Magnolia (Magnoliaceae) And Biosynthetic Studies Of Secondary Metabolites In Asteraceae Hairy Root Cultures., Qi Song

LSU Historical Dissertations and Theses

Phytochemical investigations of four members of the genus Magnolia (family Magnoliaceae) were performed to provide lignans and sesquiterpene lactones. The aerial parts of the rare Louisiana native M. pyramidata afforded eight new neolignans with a novel skeleton, pyramidatin A to H. Leaves of M. virginiana provided the known sesquiterpene lactones parthenolide and costunolide as well as the new costunolactol and costunolactol dimer. An annual study of the leave constituents of M. virginiana illustrated that native M. virginiana only produces sesquiterpene lactones but transferred M. virginiana, possibly a northern variety, produces only lignans. The leaves of M. soulangiana gave five known …

Go to article

Achievement Goals And Motivational Climates For Physical Education., Jerry Wilson Boone Jan 1995

Achievement Goals And Motivational Climates For Physical Education., Jerry Wilson Boone

LSU Historical Dissertations and Theses

The focus of this study was the examination of relationships of dispositional goal orientations and perceived motivational climates to learning strategies, attributions for causes of success, practice patterns, and achievement. The study also examined the effects of an intervention designed to implement mastery focused strategies in physical education. Specifically, the research questions addressed were: (a) How do students' dispositional goal orientations relate to the perceived motivational climate in physical education classes? (b) How do students' goal orientations and the perceived motivational climate relate to attributions for success and learning strategies employed in a physical education class? (c) Are practice patterns …

Go to article

The Efficacy Of Scaffolding Strategies In Holistic Language Intervention On Language And Phonologically Delayed Children., Monica Lynne Bradshaw Jan 1995

The Efficacy Of Scaffolding Strategies In Holistic Language Intervention On Language And Phonologically Delayed Children., Monica Lynne Bradshaw

LSU Historical Dissertations and Theses

This study investigated the efficacy of scaffolding strategies within holistic language intervention with six language and phonologically delayed preschool children. The scaffolding condition was compared to two experimental controls using either wh-questions or print awareness techniques. It was hypothesizsd that the use of scaffolding strategies would result in greater semantic displacement, syntactic complexity, and phonological complexity than the use of either the wh-questions or print awareness controls. Efficacy of the conditions was measured by (a) semantic levels, (b) mean length of utterance, and (c) percent of words produced correctly. An alternating treatment was employed in the single-subject study. The subjects …

Go to article

Effects Of Environmental Factor Gradients On Survival, Growth And Physiology Of Two Species Of Crab Within The Genus Callinectes., John Louis Guerin Jan 1995

Effects Of Environmental Factor Gradients On Survival, Growth And Physiology Of Two Species Of Crab Within The Genus Callinectes., John Louis Guerin

LSU Historical Dissertations and Theses

Effects of environmental factor gradients on growth, molting and physiology of crabs within the genus Callinectes were examined. Juvenile blue crabs, Callinectes sapidus, were exposed to a range of dissolved cadmium concentrations at two salinities (2.5 and 25$\perthous$). 21-day LC$\sb{50}$'s were lower at 2.5$\perthous$ (19 $\mu$g l$\sp{-1}$) than at 25$\perthous$ (186 $\mu$g l$\sp{-1}).$ Crabs were exposed to Cd levels of 0, 50 and 100 $\mu$g l$\sp{-1}$ for bioenergetic measurements. Energy expenditure did not vary with cadmium. Scope for growth, energy consumption and energy absorption were unaffected by Cd at 25$\perthous,$ but decreased with exposure to cadmium at 2.5$\perthous.$. Juvenile lesser …

Go to article

The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden Jan 1995

The Effects Of Metacognitive Advice And Control Of Sequence On Student Achievement And Attitude Toward Computer-Assisted Instruction And Content., Andrew Mark Holden

LSU Historical Dissertations and Theses

The purpose of the study was to investigate the effects of the CAI design features--metacognitive advice and control of instructional sequence upon student achievement and attitude toward the instructional program and content. The topic of the CAI was designing comparative research to control threats to internal validity. Four versions of the CAI were created based upon the combinations of the bi-level independent variables--metacognitive advice and control of instructional sequence. The participants of the study were graduate students from four departments at Louisiana State University. The independent variables were metacognitive advice, control of instructional sequence, and the participant's self-directed learning readiness …

Go to article

Data Analysis Using Reconstructability Theory., Deky Dicky Joe Gouw Jan 1995

Data Analysis Using Reconstructability Theory., Deky Dicky Joe Gouw

LSU Historical Dissertations and Theses

In this dissertation, we develop a new data analysis method using reconstructability theory, particularly k-systems theory. K-systems or Klir systems theory is a branch of reconstructability theory and provides a setting wherein common problems in statistics can be solved using the power of information theory by invoking the maximum entropy principle. The method is superior over classical statistical data analysis. The approach starts with the concept of variable interaction in reconstructability analysis (RA), We then use the RA definition of interaction to improve the quality of main and interaction effects in data analysis. With classical statistical data analysis, we need …

Go to article

Nitrogen Biogeochemistry Of Aquaculture Pond Sediments., John Albert Hargreaves Jan 1995

Nitrogen Biogeochemistry Of Aquaculture Pond Sediments., John Albert Hargreaves

LSU Historical Dissertations and Theses

Aquaculture pond water quality is dominated by planktonic processes, although the high surface-to-volume ratio suggests that sediment has the potential to effect important changes in water quality. The objectives of this research were to evaluate annual variation of sediment nitrogen biogeochemistry and develop a model of annual variation in ammonia concentration in a commercial channel catfish pond. In addition, the effects of physical and chemical sediment management techniques on water quality in aquatic mesocosms were evaluated. Sediment nitrogen was dominated by organic (92-96%) and adsorbed ammonium (2-4%) fractions. Porewater ammonium comprised the smallest yet most dynamic component of sediment N, …

Go to article

An Examination Of Investor Evaluation Of Corporate Social Performance., Gisele Kay Jackson Jan 1995

An Examination Of Investor Evaluation Of Corporate Social Performance., Gisele Kay Jackson

LSU Historical Dissertations and Theses

This study examines the relative importance of criteria that investors consider when evaluating corporate social performance. Socially sensitive investing has increased in importance in the past two decades and the availability of information is key to effective social action. The Analytic Hierarchy Process (AHP) is used to determine the relative importance assigned to specific social criteria by representatives of socially or environmentally responsible mutual funds in the U.S. and abroad. A hierarchy of social criteria is developed. Five criteria enter into the evaluation of corporate social performance: community involvement, environment, fair business practices, human resources, and products and services. The …

Go to article

Robust Adaptive Control In H(Infinity)., Gisoon Kim Jan 1995

Robust Adaptive Control In H(Infinity)., Gisoon Kim

LSU Historical Dissertations and Theses

This dissertation addresses the problem of unifying identification and control in the paradigm of ${\cal H}\sb\infty$ to achieve robust adaptive control. To achieve robust adaptive control, we employ the same approach used for identification in ${\cal H}\sb\infty$ and robust control in ${\cal H}\sb\infty.$ In the modeling part, we aim not only to identify the nominal plant, but also to quantify the modeling error in ${\cal H}\sb\infty$ norm. The linear algorithm based on least-squares is used, and the upper bounds for the corresponding modeling error are derived. In the control part, we aim to achieve the performance specification in frequency domain …

Go to article

Gas Kick Behavior During Bullheading Operations In Vertical Wells., William Leo Koederitz Jan 1995

Gas Kick Behavior During Bullheading Operations In Vertical Wells., William Leo Koederitz

LSU Historical Dissertations and Theses

An experimental study to investigate the bullheading method of well control was performed. The primary focus of the investigation was the downward displacement of gas by liquid, requiring consideration of counter-current flow behavior. Experiments were conducted in a full-scale well, using a computer-controlled downhole fracture simulation system; water and low-viscosity drilling mud were used for bullheading fluids. The results from these experiments provided simple models for the estimation of removal efficiency and maximum pump pressure during bullheading operations. These models are empirical and are limited to conditions within the range of the experimental data. A two-phase flow analysis of the …

Go to article

The Effect Of Developmental Factors On The Use Of An Electronic Communication Device., Judith Danute Oxley Jan 1995

The Effect Of Developmental Factors On The Use Of An Electronic Communication Device., Judith Danute Oxley

LSU Historical Dissertations and Theses

This study addressed a poorly understood variable of voice output communication aid (VOCA) use, namely mnemonic development. Forty children without disabilities, aged from 49 to 60 months, were required to use an IntroTalker (Prentke Romich Company) to participate in a one-on-one storybook reading task with the investigator. They were provided with sixteen messages to use during a scripted reading of The Three Bears. Children could use a trained verbal elaboration strategy or generate their own methods to retrieve messages. Immediate and delayed responses of children under two training methods were compared, and the contribution of developmental factors, including metamemory, were …

Go to article

The Socialization Of Beginning Principals In Louisiana: Organizational Constraints On Innovation., Scott Martin Norton Jan 1995

The Socialization Of Beginning Principals In Louisiana: Organizational Constraints On Innovation., Scott Martin Norton

LSU Historical Dissertations and Theses

The purpose of this study was to examine the organizational socialization experiences of beginning principals. This study approached the problem through a mixed methodology strategy of research, using both quantitative and qualitative techniques. A factor analysis of 187 responses to a socialization survey instrument resulted in three components of socialization which were used as the dependent variables in the study. Variation was found in the principals' socialization level, but this variation was not predicted by any of the independent variables. For the dependent variable vision, African-American principals reported higher mean scores than white principals; also, principals in elementary schools showed …

Go to article

Multiresolution Techniques In Image Processing., Ramana L. Rao Jan 1995

Multiresolution Techniques In Image Processing., Ramana L. Rao

LSU Historical Dissertations and Theses

Multiresolution, an effective paradigm for signal processing, offers a natural, hierarchical view of information. As a computational tool, multiresolution can be applied to a variety of problems in signal and image processing. For instance, feature detection and extraction can be performed quickly and efficiently using a multiresolutional method to analyze images. This dissertation addresses the problems of segmentation and edge detection in images with particular emphasis on satellite images which display features of a fine nature, such as the Atlantic Gulf Stream. The dissertation also describes a portable toolkit, for conventional and multiresolutional image processing, that was developed to test …

Go to article

Estimation Of Genetic Parameters For Preweaning Growth Traits Of Crossbred Cattle., Denis Jose Salgado-Fonseca Jan 1995

Estimation Of Genetic Parameters For Preweaning Growth Traits Of Crossbred Cattle., Denis Jose Salgado-Fonseca

LSU Historical Dissertations and Theses

Data from a long-term rotational crossbreeding study involving Angus, Brahman, Charolais and Hereford cattle were analyzed to evaluate the importance of maternal effects on birth weight (BWT), weaning weight (WWT) and preweaning average daily gain (ADG) and, to estimate genetic parameters. Six different animal models were fitted for each trait, ranging from a single additive to a maternal animal model allowing for both genetic and environmental maternal effects and a genetic covariance between direct and maternal additive effects. Genetic effects were obtained using a maternal animal model allowing for a maternal additive effect and a direct-maternal additive covariance (Model 4). …

Go to article

The Production Of Triploid Oyster Larvae (Crassostrea Virginica (Gmelin)) In Louisiana., John Eric Supan Jan 1995

The Production Of Triploid Oyster Larvae (Crassostrea Virginica (Gmelin)) In Louisiana., John Eric Supan

LSU Historical Dissertations and Theses

Gonadal recycling of oyster broodstock, salinity effects during induction, and cytochalasin B (CB) dosage were investigated as factors affecting the production of triploid oyster larvae in Louisiana. These factors were studied at an oyster hatchery on Grand Isle, LA during 1992-1994 to help transfer triploid oyster technology to the Gulf region. Oyster broodstock were held nearshore in Caminada Bay, Louisiana and histologically analyzed between induced spawnings and during the winter of 1992-1993. Gametogenesis was analyzed qualitatively by developmental staging and quantitatively using mean gonad/body ratios (GBR) per section. The monthly percent occurrence of the developmental stages, as well as histological …

Go to article

The Pueblo Region As A Linguistic Area: Diffusion Among The Indigenous Languages Of The Southwest United States., Catherine Bereznak Jan 1995

The Pueblo Region As A Linguistic Area: Diffusion Among The Indigenous Languages Of The Southwest United States., Catherine Bereznak

LSU Historical Dissertations and Theses

The goal of this dissertation is to investigate whether the Pueblo region of the Southwest United States is a legitimate linguistic area (LA). The Pueblo region has long been recognized as a cohesive culture area, but an in-depth examination of the Pueblo region as a linguistic area has not previously been done. Because a linguistic area is by definition an area in which linguistic features have spread through diffusion, traits which are widespread for other reasons (e.g., genetic inheritance or independent parallel development) must be eliminated as evidence for a Pueblo LA. The methodological approach which I adopt emphasizes the …

Go to article

Derivative Securities In Germany: An Examination Of The Price Discovery And Extreme Value Processes., John Paul Broussard Jan 1995

Derivative Securities In Germany: An Examination Of The Price Discovery And Extreme Value Processes., John Paul Broussard

LSU Historical Dissertations and Theses

This dissertation examines the price discovery and extreme value processes found in Germany's stock index and stock index futures markets. These two concepts are framed within the fundamental relationship between risk and return found in the financial economics literature. Results from the price discovery analysis indicate that the stock index futures market processes information more quickly than the underlying spot market. However, this processing can be characterized by a feedback loop because sometimes the spot market processes information more quickly than the futures market. An indepth analysis of the information processing relationship implies that the futures market processes information faster …

Go to article

Modeling The Antecedents Of Compulsive Buying., Leslie K. Cole Jan 1995

Modeling The Antecedents Of Compulsive Buying., Leslie K. Cole

LSU Historical Dissertations and Theses

Interest in dysfunctional consumption behaviors, such as compulsive buying, is a fairly recent development in the marketing literature. The purpose of this dissertation was to develop and test a theoretical model of the structural relationships among potential antecedents of compulsive buying behavior. In this dissertation, an extensive literature review identified several key constructs in the development of compulsive buying. These constructs include a family environment factor (parental influence), obsessive-compulsive trait, trait self-esteem, generalized anxiety, impulsive behavior, and anxiety reduction through shopping motivations. Seven studies were performed, including pretest and final studies with national non-student samples. Using LISREL, a structural model …

Go to article

An Introduction To The Songs Of Felix Wolfes (1892-1971) With Complete Chronological Catalogue., Viola R. Dacus Jan 1995

An Introduction To The Songs Of Felix Wolfes (1892-1971) With Complete Chronological Catalogue., Viola R. Dacus

LSU Historical Dissertations and Theses

The German-born composer and conductor Felix Wolfes (1892-1971) left a substantial legacy of over two hundred inspired and finely crafted songs. These works have earned him a place among his self-proclaimed ancestors, Brahms, Wolf, Strauss, Mussorgsky, and his teachers, Reger and Pfitzner. Unfortunately, both the composer and his works remain virtually unknown today. Wolfes's output as a composer consists almost entirely of German lieder. His style is strongly rooted in the Romantic tradition of earlier lieder composers, but Wolfes did more than merely imitate his predecessors. While the majority of his output suggests a conservative post-tonal idiom, he frequently stretched …

Go to article

Louisiana's Cajun Prairie: Holocene History Of A Southern Grassland., Miriam Lee Fearn Jan 1995

Louisiana's Cajun Prairie: Holocene History Of A Southern Grassland., Miriam Lee Fearn

LSU Historical Dissertations and Theses

Pollen, phytolith, charcoal, and diatom analysis, in conjunction with sediment stratigraphy and radiocarbon dating, of sediment cores from Lake Arthur and Prien Lake, estuaries in southwestern Louisiana, provide 6000 years of data used to reconstruct the late-Holocene vegetation history of Louisiana's natural prairie and to define coastal processes which affected the sites. The Cajun Prairie is a grassland outlier in a climate which normally supports forest. Poorly drained, impermeable soils with poor water yielding capability induce summer drought severe enough to limit the success of trees, resulting in a natural tallgrass prairie. Pollen, phytoliths, and charcoal suggest that the grassland …

Go to article

Intraspecific Variation In Salt Tolerance In Panicum Hemitomon, Spartina Patens, And Spartina Alterniflora: Population Differentiation And Investigations Of Underlying Factors., Mark Warner Hester Jan 1995

Intraspecific Variation In Salt Tolerance In Panicum Hemitomon, Spartina Patens, And Spartina Alterniflora: Population Differentiation And Investigations Of Underlying Factors., Mark Warner Hester

LSU Historical Dissertations and Theses

Although it is known that wetland plant species exhibit considerable interspecific variation in salt tolerance across coastal plant communities, very little is known concerning the amount of intraspecific variation in salt tolerance within plant species. Panicum hemitomon, Spartina patens and Spartina alterniflora are dominant emergent macrophytes of fresh, brackish and salt marshes, respectively. To investigate intraspecific variation in salt tolerance, plant material was collected from Gulf Coast populations of each of these species and subjected to a salinity screening protocol. All three of the plant species displayed significant intraspecific variation in lethal salinity level and plant morphology. Lethal salinity levels …

Go to article

Text And Context Of The Suwo': Bribri Oral Tradition., Carla Victoria Jara Jan 1995

Text And Context Of The Suwo': Bribri Oral Tradition., Carla Victoria Jara

LSU Historical Dissertations and Theses

This dissertation comprises the analysis of six extensive texts in Bribri, a Chibchan language spoken in Costa Rica, Central America. The theoretical framework is based mainly on M.A.K. Halliday and Ruqaiya Hasan's social-semiotic perspective of text analysis and on Joseph Grimes' analysis of discourse. In order to characterize this genre within its context of discourse, the three components of context, i.e., field, tenor and mode, have been defined for the corpus of texts. To determine how texture and structure, the basic properties of text, are displayed, one text is analyzed in detail and the results are compared with the other …

Go to article

Wiretapping And National Security: Nixon, The Mitchell Doctrine, And The White Panthers. Volume I., Jeff A. Hale Jan 1995

Wiretapping And National Security: Nixon, The Mitchell Doctrine, And The White Panthers. Volume I., Jeff A. Hale

LSU Historical Dissertations and Theses

This dissertation discusses a modern version of a constitutional struggle which has characterized American democracy since the first days of the Republic: the citizen's right to privacy versus the Government's need to guarantee "national security." It addresses the Supreme Court's landmark Fourth Amendment wiretapping decision of June 1972, U.S. v. U.S. District Court, which ruled unconstitutional the so-called "Mitchell Doctrine", the Nixon Administration's attempt to gain Judicial sanction for "national security" wiretaps without prior court order of suspected "domestic subversive" groups. In its unanimous Keith decision, the Court upheld the "primacy of warrants" in domestic intelligence investigations. Keith remains the …

Go to article

Combinatorial Design And Analysis Of Optimal Multiple Bus Systems For Parallel Algorithms., Priyalal D. Kulasinghe Jan 1995

Combinatorial Design And Analysis Of Optimal Multiple Bus Systems For Parallel Algorithms., Priyalal D. Kulasinghe

LSU Historical Dissertations and Theses

This dissertation develops a formal and systematic methodology for designing optimal, synchronous multiple bus systems (MBSs) realizing given (classes of) parallel algorithms. Our approach utilizes graph and group theoretic concepts to develop the necessary model and procedural tools. By partitioning the vertex set of the graphical representation CFG of the algorithm, we extract a set of interconnection functions that represents the interprocessor communication requirement of the algorithm. We prove that the optimal partitioning problem is NP-Hard. However, we show how to obtain polynomial time solutions by exploiting certain regularities present in many well-behaved parallel algorithms. The extracted set of interconnection …

Go to article

First Prev Next Last