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2003

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Discrete-Event Simulation: Simulation Practices And Trends, Paul Savory Jan 2003

Discrete-Event Simulation: Simulation Practices And Trends, Paul Savory

Department of Industrial and Management Systems Engineering: Presentations

Discrete-event computer simulation is one of industry’s most used operations research techniques. Its uses range from answering questions about work-in-process and production feasibility to comparing alternative plans for system routing and scheduling. This presentation offers a brief overview of practices and trends.

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Effect Of Combined Metal-Carbon Additions On The Microstructure And Structure Of Sm2fe17, B. E. Meacham, Jeffrey E. Shield Jan 2003

Effect Of Combined Metal-Carbon Additions On The Microstructure And Structure Of Sm2fe17, B. E. Meacham, Jeffrey E. Shield

Department of Mechanical and Materials Engineering: Faculty Publications

The effect of combined alloying additions on the structure and scale of rapidly solidified Sm–Fe alloys was investigated. Transition metal additions tend to promote the formation of the disordered TbCu7-type structure in Sm2Fe17 alloys, as determined by monitoring the long-range order parameter. Essentially no order was observed for M = Ti, Zr, V, or Nb. Thus, the structure was close to the prototypical TbCu7-type structure. With M = Si, a large amount of order was observed (S = 0.62), resulting in a structure closer to the well-ordered Th2Zn17-type. The …

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Application And Performance Of Constructed Wetlands For Runoff From Small Open Lots, C. G. Henry, J. P. Harner Iii, T. D. Strahm, M. A. Reynolds Jan 2003

Application And Performance Of Constructed Wetlands For Runoff From Small Open Lots, C. G. Henry, J. P. Harner Iii, T. D. Strahm, M. A. Reynolds

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

Vegetative systems have long been studied and evaluated as alternatives to conventional storage, treatment, and land application systems. This paper discusses the application of vegetative systems, primarily constructed wetlands, as a runoff treatment technology for small livestock operations. The approach used for two small dairies and one beef cattle feedlot is discussed. Cost data for these operations is included as well as nutrient reduction performance results from a three year sampling period for the KS Dairy.

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Molecular Dynamics Of Soy-Protein Isolate Films Plasticized By Water And Glycerol, S.-G. Choi, K. M. Kim, Milford Hanna, Curtis L. Weller, W. L. Kerr Jan 2003

Molecular Dynamics Of Soy-Protein Isolate Films Plasticized By Water And Glycerol, S.-G. Choi, K. M. Kim, Milford Hanna, Curtis L. Weller, W. L. Kerr

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The effects of water and glycerol on the molecular mobility of a soy-protein isolate (SPI)-based film were investigated using 1H nuclear magnetic resonance (NMR). SPI-films were prepared with different glycerol contents and equilibrated to various levels of water activity (aw). The distributed transverse relaxation of film samples showed 2 distinct components: a solid-like fraction (T2s*) and a liquid-like fraction (T2m*). The peak T2s* values of films with lower glycerol concentration were more sensitive to variation in aw. As aw increased, the change of solid-like to liquid-like fraction was observed in …

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Influence Of Sorghum Wax, Glycerin, And Sorbitol On Physical Properties Of Soy Protein Isolate Films, Ki Myong Kim, David B. Marx, Curtis Weller, Milford Hanna Jan 2003

Influence Of Sorghum Wax, Glycerin, And Sorbitol On Physical Properties Of Soy Protein Isolate Films, Ki Myong Kim, David B. Marx, Curtis Weller, Milford Hanna

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Sorghum wax, sorbitol, glycerin, and soy protein isolate (SPI) composite films were prepared. Effects of sorghum wax, sorbitol, and glycerin concentrations on various films were evaluated using response surface methodology. All independent variables significantly (P < 0.05) affected film water vapor permeability (WVP), tensile strength (TS), elongation at break (E), total color difference, and total soluble matter (TSM). Increasing the sorghum wax concentration decreased WVP and E. As sorbitol content increased in the composite films, WVP and TS increased. Sorbitol had a critical point of 2–5 g/5 g SPI for low values of TSM. The addition of sorbitol contributed more to the properties of the film than did glycerin.

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A Phylogenetic Study Of Cytochrome B561 Proteins, Wim Verelst, Han H. Asard Jan 2003

A Phylogenetic Study Of Cytochrome B561 Proteins, Wim Verelst, Han H. Asard

Department of Biochemistry: Faculty Publications

Background: As an antioxidant and cofactor to numerous metabolic enzymes, ascorbate has an essential role in plants and animals. Cytochromes b561 constitute a class of intrinsic membrane proteins involved in ascorbate regeneration. Despite their importance in ascorbate metabolism, no evolutionary analysis has been presented so far on this newly described protein family. Results: Cytochromes b561 have been identified in a large number of phylogenetically distant species, but are absent in fungi and prokaryotes. Most species contain three or four cytochrome b561 paralogous proteins, and the encoding genes usually have four or five exons. At the protein level, sequence similarities are …

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Phylogenetic Analysis Of The Metastrongyloidea (Nematoda: Strongylida) Inferred From Ribosomal Rna Gene Sequences, Ramon A. Carreno, Steven A. Nadler Jan 2003

Phylogenetic Analysis Of The Metastrongyloidea (Nematoda: Strongylida) Inferred From Ribosomal Rna Gene Sequences, Ramon A. Carreno, Steven A. Nadler

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Phylogenetic relationships among nematodes of the strongylid superfamily Metastrongyloidea were analyzed using partial sequences from the large-subunit ribosomal RNA (LSU rRNA) and small-subunit ribosomal RNA (SSU rRNA) genes. Regions of nuclear ribosomal DNA (rDNA) were amplified by polymerase chain reaction, directly sequenced, aligned, and phylogenies inferred using maximum parsimony. Phylogenetic hypotheses inferred from the SSU rRNA gene supported the monophyly of representative taxa from each of the 7 currently accepted metastrongyloid families. Metastrongyloid taxa formed the sister group to representative trichostrongyloid sequences based on SSU data. Sequences from either the SSU or LSU RNA regions alone provided poor resolution for …

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The Stable Core And Dynamic Periphery In Top Management Teams, Michael A. Roberto Jan 2003

The Stable Core And Dynamic Periphery In Top Management Teams, Michael A. Roberto

Marketing Department Faculty Journal Articles

This study explores how top management teams make strategic decisions. The findings indicate that the top management team performs a variety of monitoring and control functions within most firms, but that a single team with stable composition does not make strategic choices in most organizations. Instead, different groups, with members from multiple organizational levels, form to make various strategic decisions. A stable subset of the top team forms the core of each of these multiple decision‐making bodies. The findings offer a possible explanation for inconsistent findings in the top management team literature, and suggest several new directions for future senior …

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Genetics And Heart Disease, Hassan Chamsi Pasha Jan 2003

Genetics And Heart Disease, Hassan Chamsi Pasha

Saudi Medical Journal

Production of genome sequence has recently skyrocketed with many advances in the understanding and etiology of certain diseases. Researchers have localized a region of the human genome that plays a role in determining a persons susceptibility to myocardial infarction. A new apolipoprotein gene that influences triglyceride levels in humans is also described. A recent study from Finland showed that certain families are likely to carry a genetic form of insulin resistance syndrome that predisposes them to accelerated atherosclerosis. Researchers identified 3 mutations in the gene producing a protein called metavinculin, which appears to be linked to abnormalities in cellular structures …

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The Safety Of Genetically Modified Foods Produced Through Biotechnology, Robert M. Hollingworth, Leonard F. Bjeldanes, Michael Bolger, Ian Kimber, Barbara Jean Meade, Steve L. Taylor, Kendall B. Wallace Jan 2003

The Safety Of Genetically Modified Foods Produced Through Biotechnology, Robert M. Hollingworth, Leonard F. Bjeldanes, Michael Bolger, Ian Kimber, Barbara Jean Meade, Steve L. Taylor, Kendall B. Wallace

Department of Food Science and Technology: Faculty Publications

The Society of Toxicology (SOT) is committed to protecting and enhancing human, animal, and environmental health through the sound application of the fundamental principles of the science of toxicology. It is with this goal in mind that the SOT defines here its current consensus position on the safety of foods produced through biotechnology (genetic engineering). These products are commonly termed genetically modified foods, but this is misleading, since conventional methods of microbial, crop, and animal improvement also produce genetic modifications and these are not addressed here.
The available scientific evidence indicates that the potential adverse health effects arising from biotechnology-derived …

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Effects Of Crustal Stresses On Fluid Transport In Fractured Rock: Case Studies From Northeastern And Southwestern Usa, Roger H. Morin, William Z. Savage Jan 2003

Effects Of Crustal Stresses On Fluid Transport In Fractured Rock: Case Studies From Northeastern And Southwestern Usa, Roger H. Morin, William Z. Savage

United States Geological Survey: Staff Publications

The link between stress and hydrologic properties was examined at two sites that are distinguished by different rock types and different stress states. This investigation is based upon the analysis and interpretation of geophysical logs obtained in water wells at the two locations. At the northeast site (Newark Basin), the hydrologic characteristics of sedimentary rocks are dependent upon the relationship to the current regional stress field of two primary types of orthogonal features that serve as preferential pathways for fluid flow. Subhorizontal bedding-plane partings are highly transmissive near the surface and delineate transversely isotropic fluid flow at shallow depths. With …

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Coupled Evolution Of BroX‐CloX‐HoX‐NoX Chemistry During Bromine‐Catalyzed Ozone Depletion Events In The Arctic Boundary Layer, M. J. Evans, D. J. Jacobs, C. A. Cantrell, F. Eisele, F. Flocke, A. Fried, R. L. Mauldin, B. A. Ridley, B. Wert, R. Talbot, D. Blake, Brian G. Heikes, J. Snow, J. Walega, A. J. Weinheimer, J. Dibb Jan 2003

Coupled Evolution Of BroX‐CloX‐HoX‐NoX Chemistry During Bromine‐Catalyzed Ozone Depletion Events In The Arctic Boundary Layer, M. J. Evans, D. J. Jacobs, C. A. Cantrell, F. Eisele, F. Flocke, A. Fried, R. L. Mauldin, B. A. Ridley, B. Wert, R. Talbot, D. Blake, Brian G. Heikes, J. Snow, J. Walega, A. J. Weinheimer, J. Dibb

Graduate School of Oceanography Faculty Publications

Extensive chemical characterization of ozone (O3) depletion events in the Arctic boundary layer during the TOPSE aircraft mission in March–May 2000 enables analysis of the coupled chemical evolution of bromine (BrOx), chlorine (ClOx), hydrogen oxide (HOx) and nitrogen oxide (NOx) radicals during these events. We project the TOPSE observations onto an O3 chemical coordinate to construct a chronology of radical chemistry during O3 depletion events, and we compare this chronology to results from a photochemical model simulation. Comparison of observed trends in ethyne (oxidized by Br) and ethane …

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Astrometry With The Hubble Space Telescope: A Parallax Of The Central Star Of The Planetary Nebula Ngc 6853, G. Fritz Benedict, B. E. Mcarthur, L. W. Fredrick, T. E. Harrison, M. F. Skrutskie, C. L. Slesnick, J. Rhee, R. J. Patterson, E. Nelan, W. H. Jefferys, W. Van Altena, T. Montemayor, P. J. Shelus, O. G. Franz, L. H. Wasserman, P. D. Hemenway, R. L. Duncombe, D. Story, A. L. Whipple, A. J. Bradley Jan 2003

Astrometry With The Hubble Space Telescope: A Parallax Of The Central Star Of The Planetary Nebula Ngc 6853, G. Fritz Benedict, B. E. Mcarthur, L. W. Fredrick, T. E. Harrison, M. F. Skrutskie, C. L. Slesnick, J. Rhee, R. J. Patterson, E. Nelan, W. H. Jefferys, W. Van Altena, T. Montemayor, P. J. Shelus, O. G. Franz, L. H. Wasserman, P. D. Hemenway, R. L. Duncombe, D. Story, A. L. Whipple, A. J. Bradley

Graduate School of Oceanography Faculty Publications

We present an absolute parallax and relative proper motion for the central star of the planetary nebula NGC 6853 (the Dumbbell). We obtain these with astrometric data from the Fine Guidance Sensor 3, a white-light interferometer on the Hubble Space Telescope. Spectral classifications and VRIJHKT2M and DDO51 photometry of the stars making up the astrometric reference frame provide spectrophotometric estimates of their absolute parallaxes. Introducing these into our model as observations with error, we find πabs = 2.10 ± 0.48 mas for the DAO central star of NGC 6853. A weighted average with a previous ground-based …

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Backlog 2003, Lipscomb University Jan 2003

Backlog 2003, Lipscomb University

Backlogs and Other Yearbooks

Lipscomb University's Backlog yearbook, 2003.

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Ethical Issues In Open Source Software, Frances Grodzinsky, Keith W. Miller, Marty J. Wolf Jan 2003

Ethical Issues In Open Source Software, Frances Grodzinsky, Keith W. Miller, Marty J. Wolf

School of Computer Science & Engineering Faculty Publications

In this essay we argue that the current social and ethical structure in the Open Source Software (OSS) Community stem from its roots in academia. The individual developers experience a level of autonomy similar to that of a faculty member. Furthermore, we assert that the Open Source Software Community's social structure demands benevolent leadership. We argue that it is difficult to pass off low quality open source software as high quality software and that the Open Source development model offers strong accountability. Finally, we argue that Open Source Software introduces ethical challenges for universities and the software development community.

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From Intrapreneurship To Entrepreneurship: Is Technical Expertise Sufficient?— A Case Study, John Woodilla Jan 2003

From Intrapreneurship To Entrepreneurship: Is Technical Expertise Sufficient?— A Case Study, John Woodilla

New England Journal of Entrepreneurship

Following a successful career in industry, Dr. Douglas V. Shick, a newly minted entrepreneur, established NRS Associates, LLC, to perform consulting services based on two highly technical computer-modeling programs. Doug was heavily involved in the development of one program, an innovative computer simulation software for modeling a particular manufacturing process, through intrapreneurial activity during his corporate experience. Doug established his business on September 1, 2001, and on September 10 announced his services by e-mail to everyone he knew. The unforeseen events of the next day, September 11, produced some unexpected aftereffects that Doug had to factor into his developing business.

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Speech-Zilla Meets Trademark Kong?: How The Hollywood Circuit Got It Wrong In The Barbie Battle, Mattel, Inc. V. Mca Records, Inc., Steven Y. Reeves Jan 2003

Speech-Zilla Meets Trademark Kong?: How The Hollywood Circuit Got It Wrong In The Barbie Battle, Mattel, Inc. V. Mca Records, Inc., Steven Y. Reeves

Minnesota Journal of Law, Science & Technology

No abstract provided.

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The Princess And The Pea: The Assurance Of Voluntary Compliance Between The Texas Attorney General And Aetna's Texas Hmos And Its Impact On Financial Risk Shifting By Managed Care, Brant S. Mittler, Andre Hampton Jan 2003

The Princess And The Pea: The Assurance Of Voluntary Compliance Between The Texas Attorney General And Aetna's Texas Hmos And Its Impact On Financial Risk Shifting By Managed Care, Brant S. Mittler, Andre Hampton

Faculty Articles

The Texas Attorney General attempts to regulate managed care organizations and their shifting of financial risk by utilizing Assurance Voluntary Compliance to make the costs associated with the provisions of health insurance more transparent. A primary technique used to shift financial risk to providers of healthcare services is through the use of downstream entities which are commonly provider-sponsored organizations. It is the relationship between the downstream entity and the individual physicians that ultimately affects patient care, the doctor-patient relationship, and the quality of care. The regulatory community throughout the United States has made the regulation of downstream entities its number …

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236rd Annual Report Of The Selectmen And Other Town Officers, Cornish, New Hampshire, Year Ending December 31, 2002., Cornish Town Representatives Jan 2003

236rd Annual Report Of The Selectmen And Other Town Officers, Cornish, New Hampshire, Year Ending December 31, 2002., Cornish Town Representatives

Cornish, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

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Towards A Theory Of Cyberplace: A Proposal For A New Legal Framework, Ronnie Cohen, Janine S. Hiller Jan 2003

Towards A Theory Of Cyberplace: A Proposal For A New Legal Framework, Ronnie Cohen, Janine S. Hiller

Richmond Journal of Law & Technology

This article discusses whether the existing legal framework for property and places should apply to the electronic medium, or whether the uniqueness of the Internet requires a different characterization. The source of the right of the owner of an Internet site to legally control access to and use of the site and its content is the tort law of trespass and the law of contract. The sources of the right of users to freely access and use Internet content are the policies of free speech and public accommodation. Part I of this paper reviews the common law trespass theories that …

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The Academy Chokes On Food Biotech, Public Policy Suffocates, Henry I. Miller Jan 2003

The Academy Chokes On Food Biotech, Public Policy Suffocates, Henry I. Miller

Richmond Journal of Law & Technology

The National Academy of Sciences, under its 1863 congressional charter, is supposed to be dedicated to “investigate, examine, experiment, and report upon any subject of science or art whenever called upon to do so by any department of the government.” At least insofar as judging the scienti c integrity of governmental regulation of biotechnology is concerned, however, two recent “expert” committees of the National Research Council (NRC), the research arm of the Academy, have been plagued by apparent bias, and their recommendations have been dubious.

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An Introduction To Genetically Modified Foods, Kathleen Hart Jan 2003

An Introduction To Genetically Modified Foods, Kathleen Hart

Richmond Journal of Law & Technology

Thank you. I have been visiting a lot of bookstores since Eating in the Dark came out last year, including a wonderful bookstore, I should mention, which is right here in Richmond called the Fountain Bookstore. People often ask me if I’ve changed my diet as a result of what I learned while researching the book. Mainly, have I stopped eating genetically engineered foods? I always answer that I’m an American, so of course I eat genetically engineered foods because we have no choice in the matter. GM foods are ubiquitous in the processed foods, and they’re not labeled. But …

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Regulating Genetically Modified Foods: Is Mandatory Labeling The Right Answer?, Jean Halloran Jan 2003

Regulating Genetically Modified Foods: Is Mandatory Labeling The Right Answer?, Jean Halloran

Richmond Journal of Law & Technology

hank you. Consumer Union, which is the organization that I work for, favors labeling genetically engineered food. At the base of our view on this issue is the view that genetically engineered food is different than regular food. I know some of our previous speakers have spoken about how this is all just one big continuum from conventional crops, but when you look at spider- silk goats, which are goats genetically engineered to produce spider silk in their milk that do in fact exist already on a test farm, the ordinary persons sees something different. To the ordinary person, a …

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Kalman Filtering For Adaptive Nonuniformity Correction In Infrared Focal-Plane Arrays, Sergio N. Torres, Majeed M. Hayat Jan 2003

Kalman Filtering For Adaptive Nonuniformity Correction In Infrared Focal-Plane Arrays, Sergio N. Torres, Majeed M. Hayat

Electrical and Computer Engineering Faculty Research and Publications

A novel statistical approach is undertaken for the adaptive estimation of the gain and bias nonuniformity in infrared focal-plane array sensors from scene data. The gain and the bias of each detector are regarded as random state variables modeled by a discrete-time Gauss–Markov process. The proposed Gauss–Markov framework provides a mechanism for capturing the slow and random drift in the fixed-pattern noise as the operational conditions of the sensor vary in time. With a temporal stochastic model for each detector’s gain and bias at hand, a Kalman filter is derived that uses scene data, comprising the detector’s readout values sampled …

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Panel Remarks On Liability: Liability For Farming?, Rachel G. Lattimore Jan 2003

Panel Remarks On Liability: Liability For Farming?, Rachel G. Lattimore

Richmond Journal of Law & Technology

Good afternoon. To begin, I’d like to thank Ed Wallis and the Richmond Journal of Law & Tech- nology for inviting me to speak on such a distinguished panel. And I’d like to tell you one thing about myself that is not in my fancy lawyer biography. I grew up on a small family farm down in North Caro- lina, so I learned from an early age about the different types of genetic manipulations that go on a farm, from breeding cattle to grafting apple trees, which if you’re fourteen years old, consists of spending your entire Spring Break taking …

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Mid-Western Educational Research Association 2003 Annual Meeting Call For Proposals, Janet K. Holt Jan 2003

Mid-Western Educational Research Association 2003 Annual Meeting Call For Proposals, Janet K. Holt

Mid-Western Educational Researcher

Call for Proposals

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Using Online Instruction To Deliver A Discussion-Intensive Format, Herbert W. Broda Jan 2003

Using Online Instruction To Deliver A Discussion-Intensive Format, Herbert W. Broda

Mid-Western Educational Researcher

Delivering a discussion-intensive curriculum via online instruction can pose a variety of challenges. This article presents an overview of a contemporary issues online graduate course, and analyzes the degree to which the course encouraged feelings of community, a tone of thoughtful and willing reflection, and an overall understanding of contemporary issues.

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Online Instruction An Alternative Delivery System For Higher Education, Michael Wronkovich Jan 2003

Online Instruction An Alternative Delivery System For Higher Education, Michael Wronkovich

Mid-Western Educational Researcher

In an increasingly technological society, delivery systems for professional development and higher education have greatly expanded. Video conferencing and web-based alternatives provide opportunities to extend the college campus far beyond the boundaries traditionally considered feasible. Adult learners have found the convenience of web-based instruction fits their already complicated lifestyle. And for the university, web-based learning is cost effective. The two major questions for this paper are: (1) How does an institution begin web-based instruction? (2) How does it maintain quality for the students who are learning over long distances?

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Cover And Contents Jan 2003

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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Cover And Contents Jan 2003

Cover And Contents

Turkish Journal of Biology

No abstract provided.

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