Digital Commons Network^™

The Dirty Model. Ii. Self-Consistent Treatment Of Dust Heating And Emission In A Three-Dimensional Radiative Transfer Code, K. A. Misselt, Karl D. Gordon, Geoffrey C. Clayton, M. J. Wolff

Faculty Publications

In this paper and a companion paper we present the DIRTY model, a Monte Carlo radiative transfer code, self-consistently including dust heating and emission and accounting for the effects of the transient heating of small grains. The code is completely general: the density structure of the dust, the number and type of heating sources, and their geometric configurations can be specified arbitrarily within the model space. Source photons are tracked through the scattering and absorbing medium using Monte Carlo techniques, and the effects of multiple scattering are included. The dust-scattering, -absorbing, and -emitting properties are calculated from realistic dust models …

Determination Of An Ethane Intermolecular Potential Model For Use In Molecular Simulations From Ab Initio Calculations, Richard L. Rowley, Tapani A. Pakkanen, Yan Yang

Faculty Publications

Counterpoise-corrected, supermolecule, ab initio energies obtained at the MP2/6-311+G(3df, 2pd) level were computed for 22 different relative orientations of two ethane molecules as a function of the separation distance between the molecular centers. These energies were used to regress the parameters in several simple, analytical, interatomic or site-site models that can be used for implementation in molecular simulations. Sensitivity analysis indicated that the inter molecular potential surface is insensitive to the C-C interactions and that the parameters in the C-C model are coupled and unobtainable from the dimer energies. Representation of the potential surface can be made in terms of …

Quiet Rebellion? Explaining Nearly A Decade Of Declining Federal Drug Sentences With Michael Heise, Frank O. Bowman Iii, Michael Heise

Faculty Publications

The Article begins with an examination of three primarily empirical questions. First, is the trend real? In other words, is the apparent decrease in federal drug sentences merely a species of statistical hiccup, a random fluctuation that could move easily and rapidly in the other direction? Or is the decline in average drug sentences large enough, and the trend prolonged enough, that we can safely conclude that something meaningful is occurring?

Court Administration As A Tool For Judicial Reform, Christie S. Warren

Faculty Publications

This paper focuses on court administration as a component of judicial branch reform in the United States and other countries.

Over the past fifty years, state and federal court systems in the United States have undergone a process of significant change. At the beginning of the twentieth century, courts were largely dependent upon the executive branch of government for administrative support and were for the most part externally dominated, disorganized, and poorly managed. By the end of the century, they had undergone a process of administrative innovation and improvement that changed the way they were managed. In other countries, judicial …

Sr3Znpto6 And Sr3Cdpto6, Mark D. Smith, Hans Conrad Zur Loye

Faculty Publications

The flux synthesis of single crystals of the isostructural compounds tristrontium zinc platinum hexaoxide, Sr₃ZnPtO₆, and tristrontium cadmium platinum hexaoxide, Sr₃CdPtO₆, is reported. The compounds adopt the pseudo-one-dimensional rhombohedral K₄CdCl₆ structure type, and feature chains of face-shared distorted ZnO₆ or CdO₆ trigonal prisms and PtO₆ octahedra, surrounded by columns of Sr²⁺ ions. All transition metals are located on the threefold axis of symmetry, while the Sr²⁺ cations lie on twofold axes.

Formula: Sr₃ZnPtO₆ and Sr₃CdPtO₆

Determining Reasonableness Under The Fourth Amendment: Physical Force To Control And Punish Students, Kathryn R. Urbonya

Faculty Publications

No abstract provided.

The Copyrightability Of New Works Of Authorship: 'Xml Schemas' As An Example, I. Trotter Hardy

Faculty Publications

No abstract provided.

Duty Rules, David G. Owen

Faculty Publications

No abstract provided.

Appraising Industrial Special-Purpose Properties, Robert G. Crawford, Barrett A. Slade

Faculty Publications

This article proposes a new technique, based on utilization rates, for estimating economic obsolescence in the appraisal of industrial special-purpose properties. A utilization-based measure, which explicitly considers the operating leverage of the facility, allows for proper calculation of the obsolescence. Theoretically correct valuation principles underlie the proposed utilization methodology. The technique uses inputs that are reasonably available to an appraiser, thus providing a practical application of the proposed methodology.

History And Interpretation Of The Great Case Of Johnson V. M'Intosh, Eric Kades

Faculty Publications

No abstract provided.

First-Principles Elastic Constants And Electronic Structure Of Α-Pt2si And Ptsi, Gus L. W. Hart, O. Beckstein, J. E. Klepeis, O. Pankratov

Faculty Publications

We have carried out a first-principles study of the elastic properties and electronic structure for two room-temperature stable Pt silicide phases, tetragonal α-Pt2Si, and orthorhomic PtSi. We have calculated all of the equilibrium structural parameters for both phases; the a and c lattice constants for α-Pt2Si and the a, b, and c lattice constants and four internal structural parameters for PtSi. These results agree closely with experimental data. We have also calculated the zero-pressure elastic constants, confirming prior results for pure Pt and Si and predicting values for the six (nine) independent, nonzero elastic constants of α-Pt2Si (PtSi). These calculations …

A Speech Interface To Genealogical Data, Deryle W. Lonsdale

Faculty Publications

This talk presents an interface that has been developed to enable users to access genealogical information via speech. Whereas the more traditional approaches for accessing data are prevalent in today’s commercial genealogical products (e.g. windows, icons, and point-and-click methods), hands-free access to information is becoming increasingly popular. There would seem to be a potential demand for speech-based access to genealogical information, particularly among enthusiasts who might require mobile access, or those who are uncomfortable with or unable to use manual methods. Yet software to perform this function for genealogical access does not appear to be widely available yet.

Measurement Of Dijet Cross Sections For Events With A Leading Neutron In Photoproduction At Hera, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari

Faculty Publications

Differential cross sections for dijet photoproduction in association with a leading neutron using the reaction e+ + p → e+ + n + jet + jet + Xr have been measured with the ZEUS detector at HERA using an integrated luminosity of 6.4 pb-1. The fraction of dijet events with a leading neutron in the final state was studied as a function of the jet kinematic variables. The cross sections were measured for jet transverse energies EjetT > 6 GeV, neutron energy En > 400 GeV, and neutron production angle θn < 0.8 mrad. The data are broadly consistent with factorization of the lepton and hadron vertices and with a simple one-pion-exchange model. © 2001 Elsevier Science B.V. All rights reserved.

Neutrino Reactions On The Deuteron, S. Nakamura, T. Sato, Vladimir Gudkov, K. Kubodera

Faculty Publications

The cross sections for the ν-d and ν̅ -d reactions are calculated for incident energy up to E_ν=170 MeV with the use of a phenomenological Lagrangian approach. We assess and improve the reliability of the employed calculational method by examining the dependence of the results on various input and approximations that go into the calculation. The main points of improvement over the existing work are (1) use of the “modern” NN potentials, (2) use of the more accurate nucleon weak-interaction form factors, and (3) monitoring the strength of a vertex that governs the exchange-current contribution, with the use …

Discovery Of The Bright Trans-Neptunian Object 2000 Eb173, Ignacio Ferrin, D. Rabinowitz, B. Schaefer, J. Snyder, N. Ellman, B. Vicente, A. Rengstorf, D. Depoy, S. Salim, P. Andrews, C. Bailyn, C. Baltay, C. Briceno, P. Coppi, M. Deng, W. Emmet, A. Oemler, C. Sabbey, J. Shin, S. Sofia, W. Van Altena, K. Vivas, C. Abad, A. Bongiovanni, G. Bruzual, F. Della Prugna, D. Herrera, G. Magris, J. Mateu, R. Pacheco, Ge Sánchez, Gu Sánchez, H. Schenner

Faculty Publications

We describe the discovery circumstances and photometric properties of 2000 EB173, now one of the brightest trans-Neptunian objects (TNOs) with opposition magnitude mR = 18.9 and also one of the largest Plutinos, found with the drift-scanning camera of the Quasar Equatorial Survey Team, attached to the 1 m Schmidt telescope of the National Observatory of Venezuela. We measure B-V = 0.99 ± 0.14 and V-R = 0.57 ± 0.05, a red color observed for many fainter TNOs. At our magnitude limit mK = 20.1 ± 0.20, our single detection reveals a sky density of 0.015+0.034-0.012 TNOs per square degree (the …

Diamagnetic Persistent Current In Diffusive Normal-Metal Rings, E. M.Q. Jariwala, P. Mohanty, M. B. Ketchen, Richard A. Webb

Faculty Publications

We have measured a diamagnetic persistent current with flux periodicities of both h/e and h/2e in an array of thirty diffusive mesoscopic gold rings. At the lowest temperatures, the magnitudes of the currents per ring corresponding to the h/e- and h/2e-periodic responses are both comparable to the Thouless energy E_c≡ħ/τ_D, where τ_D is the diffusion time. Taken in conjunction with earlier experiments, our results strongly challenge the conventional theories of persistent current. We consider a new approach associated with the saturation of …

Legislative Watch: State Bar Urges Adoption Of Ucc Revised Article 9, Ralph Anzivino

Faculty Publications

No abstract provided.

Lexical Failure And Gesture In Second Language Development, Gale Stam

Faculty Publications

Second language acquisition can be defined as the acquisition of another language after the age of three or four (Klein, 1986). It involves the learning and mastery of the morphology, syntax, phonology, and lexicon of the new language. The process by which learners acquire a second language is complex, gradual, nonlinear, and dynamic (Larsen- Freeman, 1991). Depending on their stage of second language development, learners may have difficulty retrieving words, or they may not know words at all and exhibit lexical failure.

Butterworth and Hadar (1989, 1997) have proposed that iconic gestures arise when speakers have a lexical retrieval problem …

A Software Defined Radio Platform With Direct Conversion: Soprano, Shinichiro Haruyama, Robert H. Morelos-Zaragoza

Faculty Publications

A new software defined radio platform with multiport-based direct conversion is proposed, named SOPRANO (Software Programmable and Hardware Reconfigurable Architecture for Network). The main features of SOPRANO are a high-level design methodology for digital circuits, a new mixer-less direct conversion method, and software algorithms for multi-band and multi-mode operation. We built the first prototype SOPRANO 1.0, which was able to receive PSK and QAM signals with two different carrier frequencies at 2.45 GHz and 5.25 GHz by changing signal processing software.

Molecular Simulations Of Sound Wave Propagation In Simple Gases, Alejandro Garcia, N. Hadjiconstantinou

Faculty Publications

Molecular simulations of sound waves propagating in a dilute hard sphere gas have been performed using the direct simulation Monte Carlo method. A wide range of frequencies is investigated, including very high frequencies for which the period is much shorter than the mean collision time. The simulation results are compared to experimental data and approximate solutions of the Boltzmann equation. It is shown that free molecular flow is important at distances smaller than one mean free path from the excitation point.

Life Projects (Chapter 5 Of The Book Between Gay And Straight: Understanding Friendship Across Sexual Orientation), Lisa M. Tillmann Ph.D.

Faculty Publications

“Life Projects” is Chapter 5 of the book Between Gay and Straight: Understanding Friendship Across Sexual Orientation (AltaMira Press, 2001). The timeframe spans from the fall of 1996 to January 1997. I’m taking a course on life history, and I ask a member of my research community, Gordon Bernstein, to participate in my project. During our interviews, Gordon teaches me about the ongoing process of coming out—to oneself, to other gay men, and to coworkers, friends, and family. Later, I grapple with elements of this network of gay male friends that can be unsettling, especially for women. I bemoan its …

Defending Life: Epilogue To Between Gay And Straight: Understanding Friendship Across Sexual Orientation [Book], Lisa M. Tillmann Ph.D.

Faculty Publications

In the epilogue, “Defending Life,” the project comes full circle. The setting is the oral defense of my PhD dissertation. About a dozen of the men I befriended and wrote about—most of whom have read the document—are in attendance. My academic and research communities offer personal and scholarly responses to my work. We talk through the disbelief and pain surrounding Matthew Shepard’s death just four days before, and we try to direct ourselves toward a future of greater harmony and justice.

Making Our Home In The Works Of God: Lutherans On The Civil Use Of The Law, Marie A. Failinger, Patrick R. Keifert

Faculty Publications

No abstract provided.

Burning Our Lamps With Borrowed Oil: The Liturgical Use Of The Psalms And The Life Of Faith, Rolf A. Jacobson

Faculty Publications

No abstract provided.

Process Considerations In The Age Of Markman And Mantras, Craig Allen Nard

Faculty Publications

This article asserts that although notions of uniformity and certainty have always been part of patent law parlance, since the Federal Circuit's decision in Markman v. Westview Instruments, Inc., these noble ends have achieved mantra status. In Markman, the Federal Circuit, in the name of uniformity and certainty, characterized claim interpretation as a question of law subject to de novo review, thus positioning itself as the arbiter of claim meaning. If the Federal Circuit is unwilling to exercise greater obeisance toward district court claim interpretations, this article argues that to achieve uniformity and certainty in the context of de novo …

Negotiating Academic And Personal Selves (Chapter 4 Of The Book Between Gay And Straight: Understanding Friendship Across Sexual Orientation), Lisa M. Tillmann Ph.D.

Faculty Publications

“Negotiating Academic and Personal Selves” is Chapter 4 of the book Between Gay and Straight: Understanding Friendship Across Sexual Orientation (AltaMira Press, 2001). Here I show how my relationships with the gay men of my research community alter how I position myself in graduate courses, how I practice research, how I write, and how I teach my classes. As a student, I delve into new projects on sexual orientation and identity; as an instructor, I alter course reading lists, assignments, and activities. This chapter also moves through my increasingly problematic encounters with associates who identify as heterosexual. My new consciousness …

Technology And Market Failure, Fred Foldvary, Daniel Klein

Faculty Publications

No abstract provided.

A Roundtable Discussion With Lawrence Lessig, David G. Post & Jeffrey Rosen, Thomas E. Baker

Faculty Publications

This article is a transcript of a discussion between Lawrence Lessig, David G. Post and Jeffrey Rosen on a variety of issues surrounding law, technology and the Internet. The moderator was Thomas E. Baker and the discussion was part of a Drake University Law School symposium in February of 2001.

An Obituary Of The Federal Estate Tax, M C. Mirow, Bruce A. Mcgovern

Faculty Publications

The authors adopt the genre of the obituary to discuss the development and present condition of the Federal Estate Tax. Using this form of descriptive narrative, the authors present a concise summary of the most important changes in the tax over the past eighty-five years.

Borrowing Private Law In Latin America: Andrés Bello's Use Of The Code Napoléon In Drafting The Chilean Civil Code, M C. Mirow

Faculty Publications

This article discusses Bello's sources and methods in light of Alan Watson's theory of legal transplants. It provides examples from Bello's drafting of provisions on inheritance law in the Chilean Civil Code and specifically addresses the influence of the Code Napoleon.