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A Preliminary Mass Balance Model Of Primary Productivity And Dissolved Oxygen In The Mississippi River Plume/Inner Gulf Shelf Region, Victor J. Bierman Jr., Scott C. Hinz, William J. Wiseman Jr., Nancy N. Rabalais, R. Eugene Turner Dec 1994

A Preliminary Mass Balance Model Of Primary Productivity And Dissolved Oxygen In The Mississippi River Plume/Inner Gulf Shelf Region, Victor J. Bierman Jr., Scott C. Hinz, William J. Wiseman Jr., Nancy N. Rabalais, R. Eugene Turner

Faculty Publications

A deterministic, mass balance model for phytoplankton, nutrients, and dissolved oxygen was applied to the Mississippi River Plume/Inner Gulf Shelf (MRP/IGS) region. The model was calibrated to a comprehensive set of field data collected during July 1990 at over 200 sampling stations in the northern Gulf of Mexico. The spatial domain of the model is represented by a three-dimensional, 21-segment water-column .grid extending from the Mississippi River Delta west to the Louisiana-Texas border, and from the shoreline seaward to the 30-60 m bathymetric contours. Diagnostic analyses and numerical experiments were conducted with the calibrated model to better understand the environmental …

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Comparison Of Continuous Records Of Near-Bottom Dissolved Oxygen From The Hypoxia Zone Along The Louisiana Coast, Nancy N. Rabalais, William J. Wiseman, R. Eugene Turner Dec 1994

Comparison Of Continuous Records Of Near-Bottom Dissolved Oxygen From The Hypoxia Zone Along The Louisiana Coast, Nancy N. Rabalais, William J. Wiseman, R. Eugene Turner

Faculty Publications

Oxygen depletion is a seasonally dominant feature of the lower water column on the highly-stratified, riverine-influenced continental shelf of Louisiana. The areal extent of hypoxia (bottom waters ≤2 mg l−1 dissolved oxygen) in mid-summer may encompass up to 9,500 km2, from the Mississippi River delta to the upper Texas coast, with the spatial configuration of the zone varying interannually. We placed two continuously recording oxygen meters (Endeco 1184) within 1 m of the seabed in 20-m water depth at two locations 77 km apart where we previously documented midsummer bottom water hypoxia. The oxygen meters recorded considerably different oxygen conditions …

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Axial Coordination Phenomena In Highly Substituted Porphyrins. Crystal Structure Of The Polymeric (2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20- Tetranitroporphyrinato)Zinc(Ii), [{Zn(Oetnp)}N], Mathias O. Senge, Kevin M. Smith Dec 1994

Axial Coordination Phenomena In Highly Substituted Porphyrins. Crystal Structure Of The Polymeric (2,3,7,8,12,13,17,18-Octaethyl-5,10,15,20- Tetranitroporphyrinato)Zinc(Ii), [{Zn(Oetnp)}N], Mathias O. Senge, Kevin M. Smith

Faculty Publications

The polymeric structure of the sterically strained and non-planar porphyrin [{ZnIIoetnp}n] is determined by X-ray crystallography; polymerization is achieved by utilization of the nitro-groups for axial ligation to the zinc(II) centre.

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Masters And Lords: Mid-Nineteenth Century U.S. Planters And Prussian Junkers, By Shearer Davis Bowman, Lacy K. Ford, Jr. Dec 1994

Masters And Lords: Mid-Nineteenth Century U.S. Planters And Prussian Junkers, By Shearer Davis Bowman, Lacy K. Ford, Jr.

Faculty Publications

A review of Masters and Lords: Mid-Nineteenth Century U.S. Planters and Prussian Junkers, by Shearer Davis Bowman

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The Confirmation Mystery, Michael J. Gerhardt Dec 1994

The Confirmation Mystery, Michael J. Gerhardt

Faculty Publications

No abstract provided.

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Processing Of Song Signals In The Cricket And Its Hormonal Control, Gordon Atkins, John Stout Dec 1994

Processing Of Song Signals In The Cricket And Its Hormonal Control, Gordon Atkins, John Stout

Faculty Publications

SYNOPSIS. Phonotaxis by female crickets to the calling song of males, is an important model for investigating the neural basis of auditory behavior. Recent advances make it possible to explain some components of this behavior and its hormonal control, at the level of identified neurons and molecular expression within those neurons. Tonotopically arranged afferents from the cricket's ear, project to local and intersegmental prothoracic interneurons. Bilateral processing of signals and some temporal-pattern specific processing occurs in the prothoracic ganglion and influences acoustic information that is sent to the brain via ascending interneurons that are demonstrably involved in phonotaxis. High, low …

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Denitrification, Nutrient Regeneration And Carbon Mineralization In Sediments Of Galveston Bay, Texas, Usa, Andrew R. Zimmerman, Ronald Benner Nov 1994

Denitrification, Nutrient Regeneration And Carbon Mineralization In Sediments Of Galveston Bay, Texas, Usa, Andrew R. Zimmerman, Ronald Benner

Faculty Publications

Rates of benthic denitrification, oxygen consumption and nutrient regeneration were measured during winter, spring and summer in Galveston Bay (Texas, USA) sediments. Denitrification ranged from 0 to 47 µmol N2 m-2 h-1 with maximal rates generally occurring in the summer and the upper estuary. Oxygen consumption rates ranged from 38 µmol O2 m-2 h-1 in the winter to 353 µmol O2 m-2 h-1 in the summer and were correlated with denitrification rates. Variations in bay water temperature accounted for 52 % of the variability associated with denitrification rates whereas only 28% …

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Comparison Of Energy Flows In Deep Inelastic Scattering Events With And Without A Large Rapidity Gap, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, J. Repond, J. Schlereth, R. Stanek, R. L. Talaga, J. Thron, F. Arzarello, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, F. Ciralli, A. Contin, S. D'Auria, C. Del Papa, F. Frasconi, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, G. Maccarrone Nov 1994

Comparison Of Energy Flows In Deep Inelastic Scattering Events With And Without A Large Rapidity Gap, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, J. Repond, J. Schlereth, R. Stanek, R. L. Talaga, J. Thron, F. Arzarello, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, F. Ciralli, A. Contin, S. D'Auria, C. Del Papa, F. Frasconi, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, G. Maccarrone

Faculty Publications

Energy flows in deep inelastic electron-proton scattering are investigated at a centre-of-mass energy of 269 GeV for the range Q2 ≥ 10 GeV2 using the ZEUS detector. A comparison is made between events with and without a large rapidity gap between the hadronic system and the proton direction. The energy flows, corrected for detector acceptance and resolution, are shown for these two classes of events in both the HERA laboratory frame and the Breit frame. From the differences in the shapes of these energy flows we conclude that QCD radiation is suppressed in the large-rapidity-gap eents compared to the events …

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The Nuts & Bolts Of Cooperative Learning In Engineering, Nikos J. Mourtos Nov 1994

The Nuts & Bolts Of Cooperative Learning In Engineering, Nikos J. Mourtos

Faculty Publications

A great number of engineering students work alone. But in industry, teamwork is required most of the time. Incorporating Cooperative Learning (CL) into an engineering program gives students an opportunity to practice problem solving and communication skills in a "simulated" professional environment. The paper briefly discusses the motivation behind using CL in engineering courses. Then, the essential elements to make CL successful in the classroom are examined and examples of how these elements have been incorporated into engineering courses taught by the author are given. Problems that have been encountered along with possible fixes are also mentioned.

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Fibrinolytic Responses To Moderate Intensity Exercise: Comparison Of Physically Active And Inactive Men, Linda M. Szymanski, Russell R. Pate Nov 1994

Fibrinolytic Responses To Moderate Intensity Exercise: Comparison Of Physically Active And Inactive Men, Linda M. Szymanski, Russell R. Pate

Faculty Publications

The purposes of this study were to compare fibrinolytic responses to moderate intensity exercise in physically active and inactive men and during morning and evening exercise. Fourteen physically inactive men (mean age, 34.7 ± 4.0 years) and 12 regularly active men (34.8 ± 4.0 years) performed two exercise sessions, morning and evening, at 50% of maximal oxygen consumption. Tissue plasminogen activator (TPA) andplasminogen activator inhibitor-1 (PAI-1) activity were measured before and after exercise. Data were analyzed using a three-way ANOVA with repeated measures. TPA actively increased with exercise in both groups, although the active group demonstrated greater increases than the …

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Descriptive Epidemiology Of Physical Activity In Adolescents, Russell R. Pate, Barbara J. Long, Gregory W. Heath Nov 1994

Descriptive Epidemiology Of Physical Activity In Adolescents, Russell R. Pate, Barbara J. Long, Gregory W. Heath

Faculty Publications

This paper reviews the descriptive epidemiology of physical activity in adolescents. Large population-based studies were reviewed, along with smaller studies using objective monitoring of physical activity. Estimates showed that adolescents engage in physical activity of any intensity for a mean of one hour per day. Approximately two thirds of males and one quarter of females participate in moderate to vigorous activity for 20 min 3 or more days per week. Activity levels decline with increasing age across adolescence, and this decrease is more marked in females than in males. Comparison of these data to physical activity guidelines for adolescents suggests …

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Driven Front And Interface Of A Fluid-Flow Model In 2+1-Dimensions, Michael J. Leaseburg, Ras B. Pandey Nov 1994

Driven Front And Interface Of A Fluid-Flow Model In 2+1-Dimensions, Michael J. Leaseburg, Ras B. Pandey

Faculty Publications

Computer simulations are performed to study the motion of the front and the growth of the interface width in a model of fluid flow driven by a biased field in 2+1 dimensions. The initial motion of the front is diffusive, which is followed by a nondiffusive power-law behavior in the long-time regime; the power-law exponent is nonuniversal, varying with the strength of the driven field. The growth of the interface width saturates in the asymptotic time regime. The saturated width W scales with both the driven field B as well as the transverse length L of the sample, leading to …

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Ultrasonic Enhancement Of Antibiotic Action On Gram-Negative Bacteria, William G. Pitt, Michael O. Mcbride, Jared K. Lunceford, Randall J. Roper, Richard D. Sagers Nov 1994

Ultrasonic Enhancement Of Antibiotic Action On Gram-Negative Bacteria, William G. Pitt, Michael O. Mcbride, Jared K. Lunceford, Randall J. Roper, Richard D. Sagers

Faculty Publications

The effect of gentamicin upon planktonic cultures of Pseudomonas aeruginosa, Escherichia coli, Staphylococcus epidermidis, and Staphylococcus aureus was measured with and without application of 67-kHz ultrasonic stimulation. The ultrasound was applied at levels that had no inhibitory or bactericidal activity against the bacteria. Measurements of the MIC and bactericidal activity of gentamicin against planktonic cultures of P. aeruginosa and E. coli demonstrated that simultaneous application of 67-kHz ultrasound enhanced the effectiveness of the antibiotic. A synergistic effect was observed and bacterial viability was reduced several orders of magnitude when gentamicin concentrations and ultrasonic levels which by themselves did not reduce …

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Hernando Desoto And The Indians Of Florida, By Jerald T. Milanich And Charles Hudson, Michael C. Scardaville Nov 1994

Hernando Desoto And The Indians Of Florida, By Jerald T. Milanich And Charles Hudson, Michael C. Scardaville

Faculty Publications

A review of Hernando DeSoto and the Indians of Florida, by Jerald T. Milanich and Charles Hudson

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Semiclassical Quantization Of A Nonintegrable System: Pushing The Fourier Method Into The Chaotic Regime, Karl Sohlberg, Randall B. Shirts Nov 1994

Semiclassical Quantization Of A Nonintegrable System: Pushing The Fourier Method Into The Chaotic Regime, Karl Sohlberg, Randall B. Shirts

Faculty Publications

Semiclassical Einstein–Brillouin–Keller (EBK) quantization of the nonintegrable Hénon–Heiles Hamiltonian succeeds using the Fourier transform method of Martens and Ezra. Two innovations are required for this success: (1) the use of tunneling corrected quantizing actions obtained from an approximate, one-dimensional Hamiltonian and (2) exploitation of intermediate-time approximate quasiperiodicity or "vague tori'' wherein the Fourier transform of chaotic motion over 10–100 vibrational periods allows the determination of frequencies and amplitudes which approximate motion during the time interval. Approximate tori, actions, and EBK energy levels are then straightforward. We use an interpolation method to smooth over small resonance zones that are not expected …

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Climatic Impact Of The A.D. 1783 Asama (Japan) Eruption Was Minimal: Evidence From The Gisp2 Ice Core, Gregory A. Zielinski, R. J. Fiacco, Paul A. Mayewski, L. David Meeker, Sallie I. Whitlow, Mark S. Twickler, M. S. Germani, K. Endo, M. Yasui Nov 1994

Climatic Impact Of The A.D. 1783 Asama (Japan) Eruption Was Minimal: Evidence From The Gisp2 Ice Core, Gregory A. Zielinski, R. J. Fiacco, Paul A. Mayewski, L. David Meeker, Sallie I. Whitlow, Mark S. Twickler, M. S. Germani, K. Endo, M. Yasui

Faculty Publications

Assessing the climatic impact of the A.D. 1783 eruption of Mt. Asama, Japan, is complicated by the concurrent eruption of Laki, Iceland. Estimates of the stratospheric loading of H2SO4 for the A.D. 1108 eruption of Asama derived from the SO42− time series in the GISP2 Greenland ice core indicate a loading of about 10.4 Tg H2SO4 with a resulting stratospheric optical depth of 0.087. Assuming sulfur emissions from the 1783 eruption were only one‐third of the 1108 event yields a H2SO4 loading value of 3.5 Tg and a stratospheric optical depth of only 0.029. These results suggest minimal climatic effects …

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A Vlsi Implementation Of A Parallel, Self-Organizing Learning Model, Tony R. Martinez, George L. Rudolph, Linton G. Salmon, Matthew G. Stout Oct 1994

A Vlsi Implementation Of A Parallel, Self-Organizing Learning Model, Tony R. Martinez, George L. Rudolph, Linton G. Salmon, Matthew G. Stout

Faculty Publications

This paper presents a VLSI implementation of the Priority Adaptive Self-organizing Concurrent System (PASOCS) learning model that is built using a multi-chip module (MCM) substrate. Many current hardware implementations of neural network learning models are direct implementations of classical neural network structures - a large number of sample computing nodes connected by a dense number of weighted links. PASOCS is one of a class of ASOCS (Adaptive Self-Organizing Concurrent System) connectionist models whose overall goal is the same as classical neural networks models, but whose functional mechanisms differ significantly. This model has potential application in areas such as pattern recognition, …

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Characterization Of The Near-Interface Region Of Chemical Vapor Deposited Diamond Films On Silicon By Backscatter Kikuchi Diffraction, Brent L. Adams, K. Kunze, S. Geier, R. Hessmer, M. Schreck, B. Rauschembach, B. Stritzker Oct 1994

Characterization Of The Near-Interface Region Of Chemical Vapor Deposited Diamond Films On Silicon By Backscatter Kikuchi Diffraction, Brent L. Adams, K. Kunze, S. Geier, R. Hessmer, M. Schreck, B. Rauschembach, B. Stritzker

Faculty Publications

The lattice orientations near the interface of chemical vapor deposited diamond films on Si(001) have been studied by orientation imaging microscopy. This technique is based on the automated analysis of electron backscatter Kikuchi diffraction patterns. The electron beam has been scanned in discrete steps over the reverse side of the diamond film after having removed the substrate. The obtained data have allowed us to determine the texture and to visualize quantitatively the orientational arrangement of and among individual diamond crystallites in the near-interface region. A comparison with the orientation of the substrate has proved the existence of epitaxially nucleated grains. …

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Dynamic Economic Analyses Of Selected Provisions Of Corporate Law: The Absolute Delegation Rule, Disclosure Of Intermediate Estimates And Ipo Pricing, Royce De R. Barondes Oct 1994

Dynamic Economic Analyses Of Selected Provisions Of Corporate Law: The Absolute Delegation Rule, Disclosure Of Intermediate Estimates And Ipo Pricing, Royce De R. Barondes

Faculty Publications

This Article examines three separate aspects of the relationships between corporations and their securityholders from a dynamic economic perspective: (i) the feasibility of permitting shareholders to participate in the management of their corporations through the exercise of voting rights, (ii) Rule 3b-6, the safe harbor for projections (the Safe Harbor)8 under the Securities Exchange Act of 1934 (the 1934 Act),9 and (iii) the extraordinary returns available from investing in initial public offerings (IPO's). Three particular dynamic aspects are implicated in these situations.

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Antitrust And First Amendment Implications Of Professional Real Estate Investors, Gary Myers Oct 1994

Antitrust And First Amendment Implications Of Professional Real Estate Investors, Gary Myers

Faculty Publications

This article begins with a discussion of the development of Noerr-Pennington immunity as it applies to litigation behavior. Parts III and IV describe the litigation in Professional Real Estate Investors and then analyze the effect of this new decision on predatory litigation law. Part V discusses possible ramifications of the case for other areas of federal and state law in which subjective intent is the sole keystone for the imposition of liability on petitioning activity. Because Professional Real Estate Investors interprets the First Amendment to preclude antitrust liability in these cases, other laws that deter bad faith litigation may no …

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Privilege Against Self-Incrimination, Ellen Kreitzberg Oct 1994

Privilege Against Self-Incrimination, Ellen Kreitzberg

Faculty Publications

No abstract provided.

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Psychotherapist-Patient Privilege, Ellen Kreitzberg Oct 1994

Psychotherapist-Patient Privilege, Ellen Kreitzberg

Faculty Publications

No abstract provided.

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Low Cost Schottky Barrier Solar Cells Fabricated On Cdse And Sb2S3 Films Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal Oct 1994

Low Cost Schottky Barrier Solar Cells Fabricated On Cdse And Sb2S3 Films Chemically Deposited With Silicotungstic Acid, O. Savadogo, K. C. Mandal

Faculty Publications

No abstract provided.

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Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks Oct 1994

Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks

Faculty Publications

Female cobia, Rachycentron canadum, were sampled on their spawning grounds in the Northern Gulf of Mexico to study changes in proximate analysis (protein, lipid, carbohydrate, and ash) of the ovaries during gonadal maturation. Four major stages of oocyte development were studied: stage 1, previtellogenesis; stage 2, vitellogenesis; stage 3, final maturation; and stage 4, postovulation. Cobia are multiple spawning fish; therefore, ovaries engaged in a sequential round of oogenesis were distinguished as stages 1' and 2'. Protein was the major constituent of cobia ovaries and its contribution of cobia ovaries and its contribution remained fairly constant (49-55% fo the …

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Automating Workflows For Service Provisioning: Integrating Ai And Database Technologies, Munindar P. Singh, Michael N. Huhns Oct 1994

Automating Workflows For Service Provisioning: Integrating Ai And Database Technologies, Munindar P. Singh, Michael N. Huhns

Faculty Publications

Workflows are the structured activities that take place in information systems in typical business environments. These activities frequently involve several database systems, user interfaces, and application programs. Traditional database systems do not support workflows to any reasonable extent: usually human beings must intervene to ensure their proper execution. We have developed an architecture based on AI technology that automatically manages workflows. This architecture, which executes on top of a distributed computing environment, has been applied to automating service provisioning workflows; an implementation that operates on one such workflow has been developed. This work advances the Carnot Project’s goal of developing …

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Who Are The Parents Biotechnological Children?, Larry I. Palmer Oct 1994

Who Are The Parents Biotechnological Children?, Larry I. Palmer

Faculty Publications

We do not underestimate the difficulties of legislating on this subject. In addition to the inevitable confrontation with the ethical and moral issues involved, there is the question of the wisdom and effectiveness of regulating a matter so private, yet of such public interest. Legislative consideration of surrogacy may also provide the opportunity to begin to focus on the overall implications of the new reproductive biotechnology- in vitro fertilization, preservation of sperms and eggs, embryo implantation and the like. The problem is how to enjoy the benefits of the technology-especially for infertile couples-while minimizing the risk of abuse. The problem …

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Modern Technology In The Courtroom: Possibilities And Implications, Fredric I. Lederer Oct 1994

Modern Technology In The Courtroom: Possibilities And Implications, Fredric I. Lederer

Faculty Publications

No abstract provided.

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The Sanctuary And Adventist Experience, P. Gerard Damsteegt Oct 1994

The Sanctuary And Adventist Experience, P. Gerard Damsteegt

Faculty Publications

The essence of the sanctuary doctrine is its unique revelation of Christ's ministry of reconciliation for and in us, enabling us to experience His love, which we can share with others in unselfish and sacrificial service so they see a genuine revelation of Jesus as the only hope for humanity. It embraces our mental, spiritual, and physical attributes, and is designed to transform sinners into victorious people who are patiently yet actively awaiting the coming of their Savior. "Here is the patience of the saints; here are those who keep the commandments of God and the faith of Jesus" (Rev. …

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Children, Technology, And Instruction: A Case Study Of Elementary School Children Using An Online Catalog (Opac), Paul Solomon Oct 1994

Children, Technology, And Instruction: A Case Study Of Elementary School Children Using An Online Catalog (Opac), Paul Solomon

Faculty Publications

No abstract provided.

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A Rejoinder, Larry I. Palmer Oct 1994

A Rejoinder, Larry I. Palmer

Faculty Publications

No abstract provided.

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