Digital Commons Network^™

Mothers' Day: All Mothers Are Working Mothers, 2010, Holley Hewitt Ulbrich

Publications

This article is the seventeenth in a year-long series about economics and holidays.

Recycling Industry Cluster Strategic Plan, 2010, Author Unknown

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No abstract provided.

Dual Gamma-Ray Mission, S. Boggs, C. Wunderer, P. Von Ballmoos, T. Takahashi, N. Gehrels, J. Tueller, M. Baring, J. Beacom, R. Diehl, J Greiner, E Grove, Dieter H. Hartmann

Publications

Gamma-rays at MeV energies provide a unique window on the high energy Universe, especially so for nuclear astrophysics. The potential for significant contributions, e.g., to the understanding of SNe Ia as well as the large potential for new discoveries has long been recognized, but technical progress in this challenging energy band has been slow. The groundbreaking discoveries of CGRO’s COMPTEL, however, have inspired and driven the development of powerful new instrumentation over the past decade. Novel detector technologies developed in the US and Japan enable compact Compton telescopes, greatly improving the efficiency and field-of-view achievable with this technique successfully employed …

The Dynamic X-Ray Sky Of The Local Universe, S. Boggs, C. Wunderer, P. Von Ballmoos, T. Takahashi, N. Gehrels, J. Tueller, M. Baring, J. Beacom, R. Diehl, Dieter H. Hartmann

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Over the next decade, we can expect time domain astronomy to flourish at optical and radio wavelengths. In parallel with these efforts, a dedicated transient "machine" operating at higher energies (X-ray band through soft gamma-rays) is required to reveal the unique subset of events with variable emission predominantly visible above 100 eV. Here we focus on the transient phase space never yet sampled due to the lack of a sensitive, wide-field and triggering facility dedicated exclusively to catching high energy transients and enabling rapid coordinated multi-wavelength follow-up. We first describe the advancements in our understanding of known X-ray transients that …

On The Origin Of The Highest Redshift Gamma-Ray Bursts, Krzysztof Belczynski, Daniel E. Holz, Chris L. Fryer, Edo Berger, Dieter H. Hartmann, Brain O'Shea

Publications

GRB 080913 and GRB 090423 are the most distant gamma-ray bursts (GRBs) known to date, with spectroscop-ically determined redshifts of z = 6.7 and z = 8.1, respectively. The detection of bursts at this early epoch of the universe significantly constrains the nature of GRBs and their progenitors. We perform population synthesis studies of the formation and evolution of early stars, and calculate the resulting formation rates of short- and long-duration GRBs at high redshift. The peak of the GRB rate from Population II stars occurs at z ∼ 7for a model with efficient/fast mixing of metals, while it is …

Quality Of Academic Law Library Online Catalogs And Its Effect On Information Retrieval, Georgia Briscoe

Publications

Quality in online catalogs is generally presumed to be high. Ms. Briscoe examined a number of online catalog entries and documented the accuracy of selected bibliographic records. After finding a high level of errors, she surveyed reference librarians to determine if they believed that these errors would affect their ability to answer reference questions.

Climate Change, Fragmentation, And The Challenges Of Global Environmental Law: Elements Of A Post-Copenhagen Assemblage, William Boyd

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The 2009 United Nations climate conference in Copenhagen has been widely viewed as a failure -a referendum in the eyes of many on the top-down, comprehensive approach to climate governance embodied in the Kyoto Protocol and carried forward in efforts to negotiate a successor regime. Despite a modest agreement on future work toward a new agreement, the most recent climate meeting in Cancún, Mexico reinforces this view, underscoring the conclusion that Copenhagen represents an important inflection point for international climate policy. Although much of the post-Copenhagen commentary has correctly identified various problems, even fatal flaws, with the process, very little …

Integrating Situation Awareness Assessment Into Test And Evaluation, Cheryl A. Bolstad, Haydee Maria Cuevas

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To guarantee the success if network- centric operations, warfighters need the ability to extract and share critical task-relevant information to develop and maintain the situation awareness that is so critical far effective team performance. As such, the design of emerging technologies and systems must adopt a "user-centric" approach, with consideration for human information processing capabilities and limitations. In turn, to ensure that these technologies and systems are meeting their design objectives, test and evaluation must similarly be expanded to include metrics that assess how well system features and functions are supporting critical human cognitive processes such as situation awareness and …

Organization Of Teams For Group Homework And Projects, Scott Post

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This paper describes the organization of student teams in engineering courses developed over several years of the author’s experience at multiple institutions. Students are assigned into groups of 3-4 students each for working on the homework. Homework problems are selected from a source other than the assigned textbook, since it has been found that as many as one-third of the students have access to the solution manual. All students in a group receive the same grade on the homework, and only turn in one copy of the assignment for the group. In order to help insure the full participation of …

A Critical Legal Rhetoric Approach To In Re African-American Slave Descendants Litigation, Lolita Buckner Inniss

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In this paper I apply critical legal rhetoric to the judicial opinion rendered in response to the Defendants' Motion to Dismiss Plaintiffs' Second Amended and Consolidated Complaint in 'In Re African American Slave Descendants', a case concerning the efforts of a group of modern-day descendants of enslaved African-Americans to obtain redress for the harms of slavery. The chief methodological framework for performing critical legal rhetorical analysis comes from the work of Marouf Hasian, Jr. particularly his schema for analysis which he calls substantive units in critical legal rhetoric. Critical legal rhetoric is a potent tool for exposing the …

What Carrier Doesn't Address, Philip J. Weiser

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No abstract provided.

The Depression Era Sit-Down Strikes And The Limits Of Liberal Labor Law, Ahmed A. White

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This paper explores the history of sit-down strikes from the New Deal Era and beyond and traces their influence on the substance of modern labor law. It argues that, even as the sit-down strikes proved essential to the development of a meaningful system of labor rights, the strikes also had a very different effect. As this paper undertakes to demonstrate, legal and political attacks on labor rights that were originally aimed at the sit-down strikes metastasized into a more general campaign to prohibit a range of militant strike practices, even those bearing little outward resemblance to the original sit-down strikes. …

Climate Change And Institutional Competence, Mark Squillace

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No abstract provided.

The Supreme Court's Post-Racial Turn Towards A Zero-Sum Understanding Of Equality, Helen Norton

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The Supreme Court--along with the rest of the country--has long divided over the question whether the United States has yet achieved a 'post-racial" society in which race no longer matters in significant ways. How, if at all, this debate is resolved carries enormous implications for constitutional and statutory antidiscrimination law. Indeed, a post-racial discomfort with noticing and acting upon race supports a zero-sum approach to equality: if race no longer matters to the distribution of life opportunities, a decision maker's concern for the disparities experienced by members of one racial group may be seen as inextricable from its intent to …

The Relevance Of Results Generated By Human Indexing And Computer Algorithms: A Study Of West's Headnotes And Key Numbers And Lexisnexis's Headnotes And Topics, Susan Nevelow Mart

Publications

This article begins the investigation into the different ways results are generated in West's "Custom Digest" and in LexisNexis's "Search by Topic or Headnote" and by KeyCite and Shepard's. The author took ten pairs of matching headnotes from important federal and California cases and reviewed the results sets generated by each classification and citator system for relevance. The differences in the results sets for classification systems and for citator systems raise interesting issues about the efficiency and comprehensiveness of any one system, and the need to adjust research strategies accordingly

Forensic Analysis Of A Playstation 3 Console, Scott Conrad, Greg Dorn, Philip Craiger

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The Sony PlayStation 3 (PS3) is a powerful gaming console that supports Internet-related activities, local file storage and the playing of Blu-ray movies. The PS3 also allows users to partition and install a secondary operating system on the hard drive. This “desktop-like” functionality along with the encryption of the primary hard drive containing the gaming software raises significant issues related to the forensic analysis of PS3 systems. This paper discusses the PS3 architecture and behavior, and provides recommendations for conducting forensic investigations of PS3 systems.

Force Balance Design For Educational Wind Tunnels, Scott Post, Martin Morris

Publications

A typical educational wind tunnel need only measure the lift and drag forces and be able to control the angle of attack of the mounted model. This paper presents a simple design for the balance apparatus to measure lift and drag. Two load cells are used in the apparatus, one to measure the vertical force (lift) and one to measure the horizontal force (drag). This can be used for aerodynamics studies of airplane and airfoil models, as well as ground vehicles such as trucks and cars. If desired, a third load cell can be added to enable measurements of the …

Waves In Materials With Microstructure: Numerical Simulation, Mihhail Berezovski, Arkadi Berezovski, Juri Engelbrecht

Publications

Results of numerical experiments are presented in order to compare direct numerical calculations of wave propagation in a laminate with prescribed properties and corresponding results obtained for an effective medium with the microstructure modelling. These numerical experiments allowed us to analyse the advantages and weaknesses of the microstructure model.

Temporal Scales For Transport Patterns In The Gulf Of Finland, Bert Viikmae, Tarmo Soomere, Mikk Viidebaum, Mihhail Berezovski

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The basic time scales for current-induced net transport of surface water and associated time scales of reaching the nearshore in the Gulf of Finland, the Baltic Sea, are analysed based on Lagrangian trajectories of water particles reconstructed from three-dimensional velocity fields by the Rossby Centre circulation model for 1987–1991. The number of particles reaching the nearshore exhibits substantial temporal variability whereas the rate of leaving the gulf is almost steady. It is recommended to use an about 3 grid cells wide nearshore area as a substitute to the coastal zone and about 10–15 day long trajectories for calculations of the …

The Terrorist Informant, Wadie E. Said

Publications

A man sets himself on fire in front of the White House in a dispute with the Federal Bureau of Investigation (FBI). He has been working as an informant for the FBI in a high-profile terrorism prosecution and is unhappy with the $100,000 he has been paid so far. He has also been recently convicted of bank fraud. As a result, the government declines to call him as a witness, given the damage his actions have on his credibility and trustworthiness. This incident underscores the difficulty inherent in relying on paid informants to drive a prosecution, where material considerations such …

Ways Of Seeing In Environmental Law: How Deforestation Became An Object Of Climate Governance, William Boyd

Publications

Few areas of law are as deeply implicated with science and technology as environmental law, yet we have only a cursory understanding of how science and technology shape the field. Environmental law, it seems, has lost sight of the constitutive role that science and technology play in fashioning the problems that it targets for regulation. Too often, the study and practice of environmental law and governance take the object of governance--be it climate change, water pollution, biodiversity, or deforestation--as self-evident, natural, and fully-formed without recognizing the significant scientific and technological investments that go into making such objects and the manner …

Deregulation Pas De Deux: Dual Regulatory Classes Of Financial Institutions And The Path To Financial Crisis In Sweden And The United States, Erik F. Gerding

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This article presents the following model of two regulatory classes of financial institutions interacting in financial and political markets to spur deregulation and riskier lending and investment, which in turn contributes to the severity of a financial crisis: 1) Regulation creates two categories of financial institutions. The first class faces greater restrictions in lending or investment activities but enjoys regulatory subsidies, such as an explicit or implicit government guarantee, while the second class is more loosely regulated and can make riskier loans or investments and earn additional profits. 2) These additional profits leads to calls for deregulation to enable the …

Telling Through Type: Typography And Narrative In Legal Briefs, Derek H. Kiernan-Johnson

Publications

Most legal authors today self-publish, using basic word-processing software and letting the software’s default settings determine what their documents will look like when printed. As these settings are not optimized for legal texts, they do so at their peril. The default font Times New Roman, for example, as Chief Judge Frank Easterbrook warns, is "utterly inappropriate for long documents [such as] briefs."

Commentators have started urging a more deliberate approach to legal typography. Their suggestions, however, have been content-neutral, intended for all legal texts and focused on goals such as legibility and readability.

Typography, however, has much greater potential. The …

The Year In Review - 2009, Grangegorman Development Agency

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Report on the Grangegorman Project “The Year in Review 2009″ outlining achievements and milestones, and plans for 2010.

The Economic Situation, 2009 December, Bruce Yandle

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Quarterly report on the economic situation of the United States and South Carolina.

Grating Lobe Reduction In Aperiodic Linear Arrays Of Physically Large Antennas, William C. Barott, Paul G. Steffes

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We present performance bounds obtained from the optimization of the sidelobe levels of aperiodic linear arrays. The antennas comprising these arrays are large compared to the distance between neighboring antennas, a case not addressed in previously published work. This optimization is performed in pattern-space and is applicable over a wide range of scan angles. We show that grating lobes can be suppressed even when the elemental antennas are several wavelengths in size, provided that the ratio of the antenna size to the average spacing between the antenna center-points does not exceed 80%.

Airport Bird Hazard Management, Flavio A. C. Mendonca Ph.D.

Publications

Aircraft collisions with birds, also commonly referred to as bird strikes, annually cost the commercial aviation industry in Brazil at least $6 million in direct damage and associated costs and hundreds of hours of aircraft down time. Although the economic costs of wildlife strikes are extreme, the cost in human lives lost when aircraft accidents occur as a result of strikes best illustrates the need for management of the wildlife strike problem. Bird strikes have been an increasing problem for the aviation industry. Air travel has become widespread all over the world. The aircraft has played an important role not …

Innovative Public Engagement Practices And Partnerships: Lifting Stakeholder Voices In Education Accountability Policy, Monica Wills, Curtis Brewer, Robert Knoeppel, James Witte, Roy Pargas, Jane Clark Lindle

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In 2008, due to increasing stakeholder dissatisfaction with assessment results and school report cards, South Carolina revised its 1998 Educational Accountability Act and required public engagement with stakeholders including parents/guardians, educators, business and community leaders, and taxpayers. The legislation created partnerships between SC‟s Education Oversight Committee (EOC) and Clemson University. The project also brought together within the university the fields of Applied Sociology, Computer Science, and Educational Leadership. The project involved mixed methods using phone/web surveys with focus groups eliciting perceptions from key stakeholders and under-represented voices in the surveys.

Contemporary Water Issues, Susan Kelly

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No abstract provided.

Volumetric Flank Wear Characterization For Titanium Milling Insert Tools, Uli Burger, Mathew Kuttolamadom, April Bryan, Laine Mears, Thomas Kurfess

Publications

Machining wear models are useful for the prediction of tool life and the estimation of machining productivity. Existing wear models relate the cutting parameters of feed, speed, and depth of cut to tool wear. The tool wear is often reported as changes in flank width or crater depth. However, these one-dimensional wear measurements do not fully characterize the tool condition when tools wear by other types of wear such as notching, chipping, and adhesion. This is especially true when machining difficult-to-machine materials such as titanium. This paper proposes another approach for characterizing tool wear. It is based on taking measurements …