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A Regional Market Model For Construction Aggregate Materials., Alicia Norma Rambaldi Jan 1992

A Regional Market Model For Construction Aggregate Materials., Alicia Norma Rambaldi

LSU Historical Dissertations and Theses

The primary objective of this dissertation is to model the regional markets for traditional construction aggregates, sand, gravel, and crushed stone. The long-term dynamics of the construction industry related to the demand for aggregates is modeled through a partial adjustment mechanism. The dynamics of the construction industry is introduced into the estimation of a simultaneous equations model of the demand and supply for aggregates at district levels. An engineering-based cost function for extraction of sand and gravel is estimated based on data collected from an operator's survey in the states of Alabama, Arkansas, Louisiana, Mississippi, and Texas. A step-supply for …

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Regional Comparative Advantage And Inefficiency In Production: Methodological And Empirical Issues., Barun Kanti Kanjilal Jan 1992

Regional Comparative Advantage And Inefficiency In Production: Methodological And Empirical Issues., Barun Kanti Kanjilal

LSU Historical Dissertations and Theses

The general objective of this study was to provide a methodological framework for evaluating stochastic comparative advantage of a crop in a multi-region multi-crop framework and its link with inefficiency at the firm level. In the first stage, regional comparative advantage, defined in terms of relative profitability, was theoretically analyzed on the basis of a firm's behavior under uncertainty. The empirical application involved derivation of a comparative advantage index for major crops produced in different regions of Louisiana. The results revealed heterogenous survival potential of each crop across regions. Sugarcane was found to have comparative advantage over rice and soybeans …

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Cosmology And Curriculum: A Vision For An Ecozoic Age., Angela T. Lydon Jan 1992

Cosmology And Curriculum: A Vision For An Ecozoic Age., Angela T. Lydon

LSU Historical Dissertations and Theses

The text of this dissertation explores interconnections between cosmology and curriculum. I believe the demands of an Ecozoic Age will initiate a reconceptualizing of curriculum. Further, I believe the particular cosmological perspective I advance can help us with this reconceptualization. Chapter 1 utilizes the multi-faceted insights of scientific, historical, and speculative thought. The texts used in this chapter incorporate an engagement with past cultures (Ong, Eliade), with contemporary theoretical perspectives (Munitz, Haught, and Stafford), and with a scholarship that envisions alternative futures (Bohm). Chapter 2 uncovers how modernity's relationship to the earth is rooted in the scientific, political, and social …

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A Computational Framework For Efficient Error Correcting Codes Using An Artificial Neural Network Paradigm., Maung Maung Htay Jan 1992

A Computational Framework For Efficient Error Correcting Codes Using An Artificial Neural Network Paradigm., Maung Maung Htay

LSU Historical Dissertations and Theses

The quest for an efficient computational approach to neural connectivity problems has undergone a significant evolution in the last few years. The current best systems are far from equaling human performance, especially when a program of instructions is executed sequentially as in a von Neuman computer. On the other hand, neural net models are potential candidates for parallel processing since they explore many competing hypotheses simultaneously using massively parallel nets composed of many computational elements connected by links with variable weights. Thus, the application of modeling of a neural network must be complemented by deep insight into how to embed …

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Modification Of The Drainmod-Creams Model To Incorporate A Nutrient Submodel., Abdul Razak Bin Saleh Jan 1992

Modification Of The Drainmod-Creams Model To Incorporate A Nutrient Submodel., Abdul Razak Bin Saleh

LSU Historical Dissertations and Theses

DRAINMOD-CREAMS model was used to simulate surface runoff and sediment loss from subsurface drained plot and non-subsurface drained plot in southern Louisiana. Seven years (1981-1987) of recorded data were used in this study. In general, the performance of the model in simulating surface runoff and sediment loss from subsurface drained plot is satisfactory. However, the DRAINMOD-CREAMS model did not simulate surface runoff and sediment loss accurately from non-subsurface drained plot. The CREAMS nutrient submodel was also tested on both plots. The CREAMS model seriously overestimates the nitrogen loss from non-subsurface drained plot. The sensitivity of the DRAINMOD-CREAMS model on erodibility …

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Stress Begins In Kindergarten: A Look At Behavior During Standardized Testing, Pamela O. Fleege, Rosalind Charlesworth, Diane C. Burts, Craig H. Hart Jan 1992

Stress Begins In Kindergarten: A Look At Behavior During Standardized Testing, Pamela O. Fleege, Rosalind Charlesworth, Diane C. Burts, Craig H. Hart

Faculty Publications

Kindergarten children’s behavior before, during, and after standardized achievement testing was explored through a qualitative study in two classrooms (n = 36). Simultaneously quantitative data were collected in one of the classrooms (n = 21) before and during the testing. Data were collected through observations in the classrooms, interviews with children and teachers, and audio and video taping of the children. For the quantitative component of the study, frequencies of stress behaviors were observed using a scan sampling method. Qualitative findings indicated an increase in behaviors reported to be stress related during the testing and a decrease in those behaviors …

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Quality Enhancement Through Goal-Setting: Examining The Effects Of Goal Attributes And Feedback On Performance., Paula Lynne Phillips Jan 1992

Quality Enhancement Through Goal-Setting: Examining The Effects Of Goal Attributes And Feedback On Performance., Paula Lynne Phillips

LSU Historical Dissertations and Theses

A laboratory experiment, using 165 students, was conducted to assess the effects of goal type (quantity vs quality), goal difficulty (difficult vs easy), goal specificity (specific vs nonspecific), and feedback type (goal-discrepant vs strategic) on performance. Subjects were asked to perform a heuristic task, appropriate for the assessment of both quantity and quality performance. Results indicated: (a) the provision of quality feedback will increase effort and will improve quality performance; (b) individuals value quality feedback more than they value quantity feedback; (c) individuals are more accurate in their prediction of quantity performance than they are in their prediction of quality …

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Continuity Of Affine Transformations Of White Noise Test Functionals And Applications, H. H. Kuo, J. Potthoff, J. A. Yan Jan 1992

Continuity Of Affine Transformations Of White Noise Test Functionals And Applications, H. H. Kuo, J. Potthoff, J. A. Yan

Faculty Publications

Translations and scalings defined on the Schwartz space of tempered distributions induce continuous transformations on the space of white noise test functionals [25]. Continuity of the induced transformations with respect to their parameters is proved. As a consequence one obtains a direct simple proof of the fact that the space of white noise test functionals is infinitely differentiable in Fréchet sense. Moreover, it is shown that the Wiener semigroup acts as a mollifier on the space of test functionals. © 1992.

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One-Dimensional Nash Groups, James J. Madden, Charles M. Stanton Jan 1992

One-Dimensional Nash Groups, James J. Madden, Charles M. Stanton

Faculty Publications

A Lie group equipped with a compatible real algebraic structure is called a locally Nash group. We prove some general facts about locally Nash groups, then we classify the one-dimensional locally Nash groups, using a theorem of Weierstrass that characterizes the analytic functions satisfying an algebraic addition theorem. Besides the standard Nash structure on the additive group of real numbers, there are locally Nash structures on the additive reals induced by the exponential function, the sine function, and by any elliptic function that is real on ℝ. There are no other simply connected one-dimensional locally Nash groups. Any two quotients …

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Extensions Of Tutte's Wheels-And-Whirls Theorem, Collette R. Coullard, James G. Oxley Jan 1992

Extensions Of Tutte's Wheels-And-Whirls Theorem, Collette R. Coullard, James G. Oxley

Faculty Publications

Tutte's wheels-and-whirls theorem states that if M is a 3-connected matroid and, for every element e, both the deletion and the contraction of e destroy 3-connectivity, then M is a wheel or a whirl. We prove some extensions of this theorem, one of which states that if M is 3-connected and has both a wheel and a whirl minor, then either M has only seven elements or there is some element the deletion or contraction of which maintains 3-connectivity and leaves a matroid with both a wheel and a whirl minor. © 1992.

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Lsu General Catalog 1992-1993, Louisiana State University And Agricultural And Mechanical College Jan 1992

Lsu General Catalog 1992-1993, 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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The Separation Of Zeros For Functions With Compact Spectrum, Ricardo Estrada Jan 1992

The Separation Of Zeros For Functions With Compact Spectrum, Ricardo Estrada

Faculty Publications

No abstract provided.

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The Asymptotic Expansion Of Certain Multi-Dimensional Generalized Functions, R. Estrada, R. P. Kanwal Jan 1992

The Asymptotic Expansion Of Certain Multi-Dimensional Generalized Functions, R. Estrada, R. P. Kanwal

Faculty Publications

We apply regularization of divergent integrals in the derivation of the asymptotic expansion of certain multi-dimensional generalized functions. We further present several illustrations to demonstrate that the asymptotic development of generalized functions provides a lucid formulation of many concepts in asymptotic analysis such as the expansion of oscillatory integrals and the expansion of certain series. © 1992.

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Emergence Of Radiation From Gravitational Potential Wells: The Absence Of Ωm Effects, Richard H. Price, Jorge Pullin Jan 1992

Emergence Of Radiation From Gravitational Potential Wells: The Absence Of Ωm Effects, Richard H. Price, Jorge Pullin

Faculty Publications

We consider a source of gravitational waves of frequency ω, located near the center of a massive galaxy of mass M and radius R with ωR-1. The case of odd-parity gravitational waves propagating through a perfect-fluid galaxy is particularly simple; for this case we find that, in addition to the expected redshift of the radiation emerging from the galaxy, there is a small amount of backscatter, of order Mω2R3. We show that there is no suppression of radiative power by the factor 1+ω2M24 as has been recently predicted by Kundu. The origin of Kundu's suppression lies in the interpretation of …

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Effects Of Job Applicant Past Performance And Interpersonal Attraction On Evaluator Attributions And Selection Decisions., Carl R. Phillips Jan 1992

Effects Of Job Applicant Past Performance And Interpersonal Attraction On Evaluator Attributions And Selection Decisions., Carl R. Phillips

LSU Historical Dissertations and Theses

The purpose of the present study was to examine the main and interactive effects of applicant past performance and interpersonal attraction on evaluator attributions and selection decisions; and the effects of evaluator attributions on selection decisions. One hundred seventy-two male and female students enrolled in undergraduate principles of management classes participated in the study. Subjects evaluated an application for an on-campus position and were asked to make selection decisions (i.e., rating applicant's chances of being selected for an interview and eventually receiving a job offer). The results indicated a main effect of applicant past performance (educational and work-related) on selection …

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Plasticity-Damage Bounding Surface Model For Concrete Under Cyclic-Multiaxial Loading., Taher Mowafaq Abu-Lebdeh Jan 1992

Plasticity-Damage Bounding Surface Model For Concrete Under Cyclic-Multiaxial Loading., Taher Mowafaq Abu-Lebdeh

LSU Historical Dissertations and Theses

Concrete exhibits a significant strain-softening behavior beyond the peak stress, and moreover, the mechanism of inelastic deformation in concrete consists of both plastic slip and microcracking. Hence, a combined plasticity and damage mechanics model is proposed for modeling concrete behavior under both multiaxial monotonic and cyclic loadings. The model adopts a bounding surface concept for both plasticity and damage. The introduced plasticity bounding surface is a function of the maximum compressive strain experience by the material, while the damage bounding surface is a function of the accumulated damage parameter. By this definition, both surfaces shrink in size in the stress …

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On The Relationship Between Circumscription And Well-Founded Semantics Of Logic Programs, Jianhua Chen Jan 1992

On The Relationship Between Circumscription And Well-Founded Semantics Of Logic Programs, Jianhua Chen

Faculty Publications

The relationship between 2-valued circumscription and well-founded semantics of normal and disjunctive logic programs is addressed. For normal programs, we derive conditions under which the well-founded model coincides with the intersection of 2-valued models of prioritized circumscription. For disjunctive programs, we show that the refined semantics by Chen and Kundu coincides with the semantics of prioritized circumscription.

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Death At The Hands Of Persons Unknown: The Geography Of Lynching In The Deep South, 1882 To 1910., Mary Elizabeth Hines Jan 1992

Death At The Hands Of Persons Unknown: The Geography Of Lynching In The Deep South, 1882 To 1910., Mary Elizabeth Hines

LSU Historical Dissertations and Theses

This research explores the county-level lynching record of four Deep South states--Alabama, Georgia, Louisiana, and Mississippi--to discover the spatial and temporal distribution of lynching within the region and its relationship to social and economic conditions. The period of 1882 to 1910 is selected because lynching reached its highest levels in those decades. Demographic and economic variables from the United States censuses characterize Deep South counties as urban or rural and rich or poor. The physiography and historical attributes of counties are also considered. The research objective is to improve understanding of lynching in the postbellum Deep South through geographic analysis. …

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Modeling Three-Dimensional Groundwater Flow And Solute Transport By The Finite Element Method With Parameter Estimation., Fang Xin Yu Jan 1992

Modeling Three-Dimensional Groundwater Flow And Solute Transport By The Finite Element Method With Parameter Estimation., Fang Xin Yu

LSU Historical Dissertations and Theses

A general, systematic and improved numerical formulation for the three-dimensional (3-D) groundwater flow and solute transport problems was derived, using the finite element method. In the numerical formulation, a hidden mistake, which has appeared in many textbooks and journal papers dealing with the advective term of the general 3-D solute transport equation, was found and corrected. Some simpler and practical expressions for the leaky boundary condition, surface flux condition, and sources and sinks were proposed. To improve the conventional formulation for the time derivatives, a combination of the Galerkin method and the collocation method was developed. A more accurate scheme …

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Improvement Of The Data Analysis Algorithm By Applying The Decision Tree Method., Won Chan Jung Jan 1992

Improvement Of The Data Analysis Algorithm By Applying The Decision Tree Method., Won Chan Jung

LSU Historical Dissertations and Theses

Data analysis (reconstructability analysis) is an area used on a data set which has several variables and a function value to find the most important factor that causes the function values to fall within a desired range. Normal data analysis algorithm (1) finds the most important factor in O (2$\sp{n})$ time. This dissertation introduces a newly developed system of algorithms called the Data Analyzing Tree (DAT) which is designed to either reduce the time complexity or produce more accurate results. DAT-1 uses O $(n\sp2)$ time to produce the same results as the normal data analysis method, and DAT-2 produces the …

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American Civil Religion And The Presidential Rhetoric Of Jimmy Carter., Michael James Adee Jan 1992

American Civil Religion And The Presidential Rhetoric Of Jimmy Carter., Michael James Adee

LSU Historical Dissertations and Theses

Scholars have long speculated about the role of American civil religion and political discourse. Of particular interest to rhetorical scholars is the function of a civil religion idiom within presidential discourse. The cornerstone of this study is founded upon Rod Hart's ideas in The Political Pulpit (1977) wherein the nature of American civil religion is described through the metaphor of a legal contract. A rhetorical approach to civil religion provides the framework for this study. Nine major public speeches by Carter as candidate and president, from 1974 to 1979, are examined in order to locate and identify the symbolic breeches …

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A Formal Methodology For The Specification Of Distributed Systems From An Object Perspective., Sangbum Lee Jan 1992

A Formal Methodology For The Specification Of Distributed Systems From An Object Perspective., Sangbum Lee

LSU Historical Dissertations and Theses

Distributed computing systems are systems in which multiple processors run independently by communicating with each other. The design of distributed systems is difficult to achieve as the execution patterns of distributed system are typically more complex than those of non-distributed computing systems. The application of object-oriented techniques to the design of distributed systems has the potential to increase the power of modeling and computing. A formal methodology which includes a specification language, developed from an object perspective, for the development of distributed systems is presented. The formal specification language, DOSL (Distributed Object-based Specification Language), represents the specification of distributed systems …

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Ecosystem Models Of Aquatic Primary Production And Fish Migration In Laguna De Terminos, Mexico., Enrique Reyes Jan 1992

Ecosystem Models Of Aquatic Primary Production And Fish Migration In Laguna De Terminos, Mexico., Enrique Reyes

LSU Historical Dissertations and Theses

Laguna de Terminos is Mexico's largest coastal lagoon. There is a high habitat diversity including open water, mangroves, seagrasses and marshes, which supports Mexico's most economically important fisheries. Understanding ecosystem processes is essential for effective management of the lagoon's resources. This research developed landscape-level models for aquatic primary production (LAPPTER model), and fish migration (ROE model) in Laguna de Terminos. The ROE model was developed first as a theoretical approach, and later integrated into the LAPPTER model as a submodule which utilizes simulated production as a food source. The ROE model includes behavioral rules for fish movement based on environmental …

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Identification Of Plant Science Concepts Needed In Agriscience Programs Of The Future., Camile Patrick Gaspard Jan 1992

Identification Of Plant Science Concepts Needed In Agriscience Programs Of The Future., Camile Patrick Gaspard

LSU Historical Dissertations and Theses

The purpose of this study was to identify the plant science concepts which should be taught in secondary agriculture programs of the future as perceived by innovators in the field of plant science. The Delphi technique was used to gain the perceptions of a nation-wide panel of plant science professionals. The panel was comprised of three groups of plant scientists: secondary plant science teachers, university plant scientists, and plant scientists working in industry. The secondary plant science teachers were selected from the national and regional winners of the agriscience teacher award. The university plant scientists and plant scientists working in …

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Urea Transformations In Flooded Soil., Chawalit Hongprayoon Jan 1992

Urea Transformations In Flooded Soil., Chawalit Hongprayoon

LSU Historical Dissertations and Theses

Laboratory incubation studies were conducted to measure adsorption, movement, and transformations of urea and hydrolyzed ammoniacal N in flooded soil columns. Urea was added to the floodwater (750 mg N L$\sp{-1}$, equivalent to 150 kg N ha$\sp{-1}$) of Crowley silt loam soil columns and urea diffusion and urea hydrolysis were measured. Subsequent NH$\sb4\sp+$-N and NO$\sb3\sp-$-N distribution after urea application and hydrolysis were measured over a 30 d period under aerobic and anaerobic conditions. Effects of percolation rates (0, 1, and 2 cm d$\sp{-1}$), and the use of urease inhibitor, N-(n-butyl) thiophosphoric triamide (NBPT), on movement and transformations of urea in …

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Normal Matrices Over Hermitian Discrete Valuation Rings, William A. Adkins Nov 1991

Normal Matrices Over Hermitian Discrete Valuation Rings, William A. Adkins

Faculty Publications

A generalization of the classical spectral theorem for normal complex matrices is proved for matrices with entries from a class of discrete valuation rings which we have called hermitian. The hermitian discrete valuation rings include the convergent complex power series in one variable and the complex formal power series in one variable. Thus one obtains an algebraic proof of Rellich's theorem on diagnolizability of hermitian analytic matrices which is simultaneously valid for both the rings of convergent and formal power series. © 1991.

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Ternary Paving Matroids, James G. Oxley Aug 1991

Ternary Paving Matroids, James G. Oxley

Faculty Publications

Acketa has determined all binary paving matroids. This paper specifies all ternary paving matroids. There are precisely four minor-maximal 3-connected such matroids: S(5, 6, 12), PG(2, 3), the real affine cube, and one other 8-element self-dual matroid. © 1991.

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Evaluation Of Fill-Hole Completions, Andrew K. Wojtanowicz Jul 1991

Evaluation Of Fill-Hole Completions, Andrew K. Wojtanowicz

Faculty Publications

No abstract provided.

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Non-Classical Derivation Of The Transport Theorems For Wave Fronts, R. Estrada, R. P. Kanwal Jul 1991

Non-Classical Derivation Of The Transport Theorems For Wave Fronts, R. Estrada, R. P. Kanwal

Faculty Publications

We establish a relationship between the derivatives of generalized functions and the transport theorems for moving surfaces of discontinuity. We study the motion of a propagating and deforming wave front which itself can have a moving discontinuity on its surface. With the help of the theory of generalized derivatives we present a general transport theorem which embodies the known results as special cases. © 1991.

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Propagation Of Chaos And The Mckean-Vlasov Equation In Duals Of Nuclear Spaces, T. S. Chiang, G. Kallianpur, P. Sundar Jul 1991

Propagation Of Chaos And The Mckean-Vlasov Equation In Duals Of Nuclear Spaces, T. S. Chiang, G. Kallianpur, P. Sundar

Faculty Publications

An interacting system of n stochastic differential equations taking values in the dual of a countable Hilbertian nuclear space is considered. The limit (in probability) of the sequence of empirical measures determined by the above systems as n tends to ∞ is identified with the law of the unique solution of the McKean-Vlasov equation. An application of our result to interacting neurons is briefly discussed. The propagation of chaos result obtained in this paper is shown to contain and improve the well-known finite-dimensional results. © 1991 Springer-Verlag New York Inc.

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