Digital Commons Network^™

Java Applets Enhance Learning In A Freshman Ece Course, Charles R. Graham, Timothy N. Trick

Faculty Publications

The goals of our work have been to enhance the learning environment of our students and to increase the productivity of faculty by freeing them from the drudgery of grading homework and quizzes, as well as the time required to record and compute grades. We have achieved these goals by means of the highly interactive World Wide Web (WWW)-based learning environment provided by MallardTM, 1,2 and by the development of several java applets within the Mallard environment to enhance the learning process. These Java applets are the subject of this paper. They include the ability to draw timing diagrams and …

A Zero Point And Accidental Errors For Published Values Of [Fe/H] For Cool Giants, B. J. Taylor

Faculty Publications

This paper is one of a series based on published values of [Fe/H] for late-type evolved stars. Only values of [Fe/H] from high-dispersion spectroscopy or related techniques are used. The narrative in this paper begins at a point where mean values of [Fe/H] have been derived for xiVir, alphaBoo, betaGem, and the Hyades giants. By using these stars as standard stars when necessary, a zero-point data base is assembled. This data base is then expanded into its final version by correcting and adding additional data in a step-by-step process. As that process proceeds, data comparisons are used to establish rms …

Chemical Signals From Submarine Fluid Advection Onto The Continental Shelf, W. S. Moore, Timothy J. Shaw

Faculty Publications

No abstract provided.

Pareto Optimality And The Rule Of Law, Noel B. Reynolds

Faculty Publications

In 1959, James M. Buchanan criticized the collectivist misuse of Pareto optimality by the "new welfare economists" and made a first attempt to extend that individualist concept into the political realm. Over the following three decades he further developed his political application of Pareto’s insight to buttress an essentially economic analysis of political exchange that would justify the processes of constitutional democracy in the same way Pareto efficiency justifies free markets. In this paper I will explain why Buchanan’s particular formulations will not work and propose a more comprehensive solution that accomplishes Buchanan’s announced purpose. I will argue that a …

Correlation Function Formulation For The State Selected Total Reaction Probability, Sophya Garashchuk, David J. Tannor

Faculty Publications

Investigates the correlation function formulation for the state selected total reaction probability. Discussion of the wave packet propagation; Derivation of the correlation function expression for the N[sub alpha](E); Application of quantum-mechanical and Herman-Kluk propagation methods.

Search For Selectron And Squark Production In E+P Collisions At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

We have searched for the production of a selectron and a squark in e+p collisions at a center-of-mass energy of 300 GeV using the ZEUS detector at HERA. The selectron and squark are sought in the direct decay into the lightest neutralino in the framework of supersymmetric extensions to the Standard Model which conserve R-parity. No evidence for the production of supersymmetric particles has been found in a data sample corresponding to 46.6 pb-1 of integrated luminosity. We express upper limits on the product of the cross section times the decay branching ratios as excluded regions in the parameter space …

Dynamics And Energetics Of Bubble Growth In Magmas: Analytical Formulation And Numerical Modeling, Alexander A. Prusevich, Dork L. Sahagian

Faculty Publications

We have developed a model of diffusive and decompressive growth of a bubble in a finite region of melt which accounts for the energetics of volatile degassing and melt deformation as well as the interactions between magmatic system parameters such as viscosity, volatile concentration, and diffusivity. On the basis of our formulation we constructed a numerical model of bubble growth in volcanic systems. We conducted a parametric study in which a saturated magma is instantaneously decompressed to one bar and the sensitivity of the system to variations in various parameters is examined. Variations of each of seven parameters over practical …

The Coming Forth Of The Book Of Mormon In The Twentieth Century, Noel B. Reynolds

Faculty Publications

I hope this study, however preliminary it might appear, will provide a sound first step toward developing our self-understanding as Latter-day Saints of the history of Book of Mormon use in the twentieth century and the phenomenal increase in understanding, appreciation, and study that has taken place over the last three to four decades. This study may also offer one useful perspective for the gradually emerging history of cultural Mormonism and its antipathy to the Book of Mormon. This study is grounded in the analysis of a number of possible indicators of intensity of interest in the Book of Mormon …

Scope Of The Uniform Commerical Code; Survey Of Computer Contracting Cases, William J. Woodward Jr., Amelia H. Boss

Faculty Publications

No abstract provided.

Overcoming Tradition And Modernity: The Search For Islamic Authenticity, By Robert D. Lee, Shahrough Akhavi

Faculty Publications

No abstract provided.

The Three-Species Monomer-Monomer Model In The Reaction-Controlled Limit, Kevin E. Bassler, Dana A. Browne

Faculty Publications

We study the one-dimensional three-species monomer-monomer reaction model in the reaction-controlled limit using mean-field theory and dynamic Monte Carlo simulations. The phase diagram consists of a reactive steady state bordered by three equivalent adsorbing phases where the surface is saturated with one monomer species. The transitions from the reactive phase are all continuous, while the transitions between adsorbing phases are first order. Bicritical points occur where the reactive phase simultaneously meets two adsorbing phases. The transitions from the reactive to an adsorbing phase show directed percolation critical behaviour, while the universal behaviour at the bicritical points is in the even …

Role Of The Maillard Reaction In Aging Of Tissue Proteins: Advanced Glycation End Product-Dependent Increase In Imidazolium Cross-Links In Human Lens Proteins, Elisabeth Brinkmann Frye, Thorsten P. Degenhardt, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Dicarbonyl compounds such as glyoxal and methylglyoxal are reactive dicarbonyl intermediates in the nonenzymatic browning and cross-linking of proteins during the Maillard reaction. We describe here the quantification of glyoxal and methylglyoxal-derived imidazolium cross-links in tissue proteins. The imidazolium salt cross-links, glyoxal-lysine dimer (GOLD) and methylglyoxal-lysine dimer (MOLD), were measured by liquid chromatography/mass spectrometry and were present in lens protein at concentrations of 0. 02-0.2 and 0.1-0.8 mmol/mol of lysine, respectively. The lens concentrations of GOLD and MOLD correlated significantly with one another and also increased with lens age. GOLD and MOLD were present at significantly higher concentrations than the …

The Trinity And Congregational Planning: Between Historical Minimum And Eschatological Maximum, Patrick R. Keifert

Faculty Publications

Most members of congregations are inattentive to both the past and the future of their congregation. They live in a very present now. An adequate doctrine of the Trinity can liberate congregations from this imprisonment in the present; it will call for visioning and planning in congregational life.

Binary Multilevel Convolutional Codes With Unequal Error Protection Capabilities, Robert H. Morelos-Zaragoza, Hideki Imai

Faculty Publications

Binary multilevel convolutional codes (CCs) with unequal error protection (UEP) capabilities are studied. These codes belong to the class of generalized concatenated (GC) codes. Binary CCs are used as outer codes. Binary linear block codes of short length, and selected subcodes in their two-way subcode partition chain, are used as inner codes. Multistage decodings are presented that use Viterbi decoders operating on trellises with similar structure to that of the constituent binary CCs. Simulation results of example binary two-level CC's are also reported.

The Poetic Art Of Aldhelm, Scott Gwara

Faculty Publications

No abstract provided.

A Case Of 'Great Unstableness': A British Slaveholder And Brazilian Abolition, Matt D. Childs

Faculty Publications

No abstract provided.

Smith On Hanley, 'The Metaphysics Of Star Trek, Anne Collins Smith

Faculty Publications

Review by Anne Collins Smith on the H-PCAACA mailing list, June 1998.

The Metaphysics of Star Trek by Richard Hanley. New York: Basic Books, 1997. xviii + 253 pp. $18.00 (cloth), ISBN 978-0-465-09124-9.

Richard Hanley's The Metaphysics of Star Trek is an engaging examination of certain philosophical issues raised within the Star Trek universe. Its title, however, is overly broad; it would be more correctly titled, The Twentieth-Century Applied Metaphysics of Star Trek. The earliest reference in the bibliography is an article written in 1950; the next earliest, 1960. The vast majority of sources are from the 1980's and …

Solute-Solvent Pair Distribution Functions In Highly Asymmetric Additive Hard Sphere Mixtures, Douglas Henderson, Kwong-Yu Chan

Faculty Publications

Contact values for the solute-solvent pair distribution function in an additive hard sphere mixture, as computed from the Henderson-Chan (HC) formulas, are compared with the recent Monte Carlo (MC) data and formula of Matyushov and Ladanyi (ML) [J. Chem. Phys. 107, 5815 (1997)]. The agreement is found to be excellent. The negative finding of ML is due to a misprint in one of the HC publications. We find the HC formula to be superior to the ML formula when compared to our MC data [Mol. Phys. 91, 1137 (1997)] for the case where the ratio of diameters is large and …

Structure And Elasticity Of Cao At High Pressure, Bijaya B. Karki, Jason Crain

Faculty Publications

We investigate the structural and elastic properties of CaO up to 140 GPa using the plane wave pseudopotential method within the local density approximation. Free energy comparison suggests that the transition from the low-pressure sodium chloride (B1) to the high-pressure cesium chloride (B2) structure in CaO occurs at 58 GPa, which falls within the experimental range of 53-70 GPa. The zero-pressure values and initial pressure dependences of the calculated athermal elastic moduli compare favorably with the experiments. We find that the elastic properties of the two phases vary differently with pressure. The degree of the anisotropy strongly increases with pressure …

Enigmatic Phylogeny Of Skuas: An Alternative Hypothesis, M. J. Braun, R. T. Brumfield

Faculty Publications

Last year, Cohen et al. presented molecular data suggesting the surprising result that both currently recognized genera of skuas, Stercorarius and Catharacta (Aves: Stercorariidae), are not monophyletic. However, the most enigmatic conclusion from their analysis, that S. pomarinus is sister to C. skua, rests solely on mtDNA sequence data. When the mtDNA data are analysed in a maximum likelihood framework that accounts for variation in evolutionary rates, Catharacta monophyly cannot be rejected. None of the best trees that can be derived from two nuclear data sets of Cohen et al. support the controversial pomarinus-C. skua node. We propose an alternative …

Parallel Linear Congruential Generators With Prime Moduli, Michael Mascagni

Faculty Publications

Linear congruential generators (LCGs) remain the most popular method of pseudorandom number generation on digital computers. Ease of implementation has favored implementing LCGs with power-of-two moduli. However, prime modulus LCGs are superior in quality to power-of-two modulus LCGs, and the use of a Mersenne prime minimizes the computational cost of generation. When implemented for parallel computation, quality becomes an even more compelling issue. We use a full-period exponential sum as the measure of stream independence and present a method for producing provably independent streams of LCGs in parallel by utilizing an explicit parameterization of all of the primitive elements module …

Development And Testing Of A Quantitative Food Frequency Questionnaire For Use In Kerala, India, James R. Hébert, Prakash C. Gupta, Ramesh B. Bhonsle, P. R. Murti, Hemali Mehta, Florence Verghese, Mira Aghi, Kamala Krishnaswamy, Fali S. Mehta

Faculty Publications

Objective: To develop and test a food frequency questionnaire (FFQ) for use in rural areas of Kerala, India. Design: Based on food use and market surveys of the study area, a quantitative 81- item interviewer-administered FFQ was developed. A validation study was conducted consisting of 24-h diet recalls (24HR) administered on 8 days randomly selected over an entire year and two administrations of the FFQ, one at the beginning of the l-year period and the other at the end. FFQ and 24HR-derived nutrient scores were compared using correlation and regression analyses and by examining differences in the nutrient scores. Setting: …

Constructing High Order Perceptrons With Genetic Algorithms, Timothy L. Andersen, Tony R. Martinez

Faculty Publications

Constructive induction, which is defined to be the process of constructing new and useful features from existing ones, has been extensively studied in the literature. Since the number of possible high order features for any given learning problem is exponential in the number of input attributes (where the order of a feature is defined to be the number of attributes of which it is composed), the main problem faced by constructive induction is in selecting which features to use out of this exponentially large set of potential features. For any feature set chosen the desirable characteristics are minimality and generalization …

Quantum Associative Memory With Exponential Capacity, Tony R. Martinez, Dan A. Ventura

Faculty Publications

Quantum computation uses microscopic quantum level effects to perrform computational tasks and has produced results that in some cases are exponentially faster than their classical counterparts by taking advantage of quantum parallelism. The unique characteristics of quantum theory may also be used to create a quantum associative memory with a capacity exponential in the number of neurons. This paper covers necessary high-level quantum mechanical ideas and introduces a simple quantum associative memory. Further, it provides discussion, empirical results and directions for future work.

Annotated Bibliography Of Research In The Teaching Of English, Deborah Brown, Richard L. Larson, Melissa E. Whiting

Faculty Publications

Twice a year, in the May and December issues, RTE publishes a selected bibliography of recent research in the teaching of English. Most of the studies listed appeared during the six-month period preceding the compilation of the bibliography (July through December, 1997, for the present bibliography), but some studies that appeared earlier are occasionally included. The listing is selective; it makes no attempt to include all research and research-related articles that appeared in the period tinder review. Comments on the bibliography and suggestions about items for inclusion may be directed to the bibliography editors. We encourage you to send your …

Regulation Of The Phonotactic Threshold Of The Female Cricket, Acheta Domesticus: Juvenile Hormone Iii, Allatectomy, L1 Auditory Neuron Thresholds And Environmental Factors, John Stout, Jing Hao, P. Kim, David Mbungu, M. Bronsert, S. Slikkers, J. Maier, D. Kim, K. Bacchus, Gordon Atkins

Faculty Publications

Juvenile hormone III (JHIII), when applied to the abdomen of 1-day-old female Acheta domesticus (in quantities that would create JHIII titers in the hemolymph that were within the range measured in females of this species) caused a significant decrease in phonotactic thresholds (Fig. 1). Removal of the corpora allata from 5-day-old females with low phonotactic thresholds caused significantly increased phonotactic thresholds 2-5 days later. After a temporary increase (24 h) of, on average, about 25 dB, the phonotactic thresholds drop to about 10 dB above preallatectomy levels (Fig. 2), but remain significantly higher than controls. Application of JHIII to allatectomized …

A Spin Network Generalization Of The Jones Polynomial And Vassiliev Invariants, Rodolfo Gambini, Jorge Griego, Jorge Pullin

Faculty Publications

We apply the ideas of Alvarez and Labastida to the invariant of spin networks defined by Witten and Martin based on Chern-Simons theory. We show that it is possible to define ambient invariants of spin networks that (for the case of SU(2)) can be considered as extensions to spin networks of the Jones polynomial. Expansions of the coefficients of the polynomial yield primitive Vassiliev invariants. The resulting invariants are candidates for solutions of the Wheeler-DeWitt equations in the spin network representation of quantum gravity.© 1998 Elsevier Science B.V. All rights reserved.

Mapping Monthly Precipitation, Temperature, And Solar Radiation For Ireland With Polynomial Regression And A Digital Elevation Model, Christine L. Goodale, John D. Aber, Scott V. Ollinger

Faculty Publications

A 1 km2 resolution digital elevation model (DEM) of Ireland was constructed and used as the basis for generating digital maps of the climate parameters required to run a model of ecosystem carbon and water cycling. The DEM had mean absolute errors of 30 m or less for most of Ireland. The ecosystem model requires inputs of monthly precipitation, monthly averaged maximum and minimum daily temperature, and monthly averaged daily solar radiation. Long-term (1951 to 1980) averaged monthly data were obtained from sites measuring precipitation (618 sites), temperature (62 sites), and the number of hours of bright sunshine per day …

Biblical Narratives And Christian Decision, Miroslav Kis

Faculty Publications

No abstract provided.

Quo Vadis, Posadas?, William W. Van Alstyne

Faculty Publications

No abstract provided.