Digital Commons Network^™

A Remark On Bimodality And Weak Instrumentation In Structural Equation Estimation, Peter C.B. Phillips

Cowles Foundation Discussion Papers

In a simple model composed of a structural equation and identity, the finite sample distribution of the IV/LIML estimator is always bimodal and this is most apparent when the concentration parameter is small. Weak instrumentation is the energy that feeds the secondary mode and the coefficient in the structural identity provides a point of compression in the density that gives rise to it. The IV limit distribution can be normal, bimodal, or inverse normal depending on the behavior of the concentration parameter and the weakness of the instruments. The limit distribution of the OLS estimator is normal in all cases …

Joint Kinetics Of The Ankle And Knee When Running Over Obstacles, Alan Hreljac, Nikolaos Stergiou, Shane D. Scholten

Journal Articles

When running over obstacles of increasing height, heelstrike runners switch to a forefoot landing pattern once a critical obstacle height is reached. The primary purpose of this study was to determine whether ankle or knee joint kinetic variables trigger the gait change from a heelstrike to a forefoot striking pattern as obstacle height increases. Ten subjects were filmed from the sagittal plane as they ran at their preferred running speed over a force platform during six obstacle height conditions ranging from 10% to 22.5% of standing height, as well as an additional baseline condition with no obstacle (0%). An inverse …

Enforcement Effectiveness In The Canadian Capital Markets, Poonam Puri

Commissioned Reports, Studies and Public Policy Documents

This paper focuses on the fundamental principles underlying effective enforcement by regulators. In particular, this paper analyzes the critical role of the criminal law and judges in effectively addressing capital markets misconduct. It also analyzes how securities regulators can best structure the wide discretion that is afforded to them in designing enforcement strategies and policies that are effective, fair, transparent and accountable. This study also examines the current allocation and division of enforcement responsibilities in respect of the capital markets amongst the numerous entities involved and explores contentious issues related to the current overlapping and concurrent jurisdiction. Finally, this study …

December 1, 2005, Council On Academic Affairs

Minutes

No abstract provided.

Inside Unlv, Lanelda Rolley, Shane Bevell, Carol C. Harter, Lanelda Rolley, Mamie Peers, Diane Russell

Inside UNLV

No abstract provided.

The Effectiveness Of Aquatic Therapy With Persons Who Have Experienced A Cerebral Vascular Accident, Heather L. Tweedie

Masters Theses

This study examined the effectiveness of using aquatic therapy (AT) as a technique in the treatment of cerebral vascular accidents (CVA). The unique properties of the aquatic environment were manipulated to determine change in range of motion, muscle tone, balance, functional ambulation, and psychological functioning particularly social relationship and positive and negative feelings.

A single subject design was conducted using two subjects that participated in a twelve week aquatic therapy program. Aquatic therapy showed to be effective in treating common symptoms of a CVA. More research needs to be completed to ensure the effectiveness of aquatic therapy in congruency with …

Limited Dispersal And Heterogeneous Predation Risk Synergistically Enhance Persistence Of Rare Prey, Brett J. Goodwin, Clive G. Jones, Eric M. Schauber, Richard S. Ostfeld

Publications

White-footed mice prey on gypsy moth pupae while foraging for other, more abundant food. Mice appear capable of locally extirpating moths since mice exert high predation pressure on sparse pupae and are numerically decoupled from moth populations. Nevertheless, during 23 years of monitoring, moths persisted at scales .1 ha despite frequent extinctions at smaller spatial scales. We hypothesized that spatially heterogeneous intensity in mouse foraging and/or limited moth dispersal might allow moth persistence. Using a spatially explicit, individual-based, empirically parameterized model, we show that neither spatially heterogeneous predation by mice, nor limited moth dispersal alone allows moth persistence at typical …

Mega: A Medium-Energy Gamma-Ray Astronomy Mission Concept, P. F. Bloser, J. M. Ryan, M. L. Mcconnell, J. R. Macri, U. Bravar, G. Kanbach, R. Andritschke, M. Ajello, A. Zoglauer, S. D. Hunter, B. F. Phlips, E. A. Wulf, D. H. Hartmann, R. S. Miller, W. S. Paciesas, A. D. Zych, R. M. Kippen, T. Vestrand, M. L. Cherry, T. G. Guzik, J. G. Stacy, J. P. Wefel, V. Reglero, G. Di Cocco, J. P. Cravens

Faculty Publications

The Medium Energy Gamma-ray Astronomy (MEGA) telescope concept will soon be proposed as a MIDEX mission. This mission would enable a sensitive all-sky survey of the medium-energy gamma-ray sky (0.4 - 50 MeV) and bridge the huge sensitivity gap between the COMPTEL and OSSE experiments on the Compton Gamma Ray Observatory, the SPI and IBIS instruments on INTEGRAL, and the visionary Advanced Compton Telescope (ACT) mission. The scientific goals include, among other things, compiling a much larger catalog of sources in this energy range, performing far deeper searches for supernovae, better measuring the galactic continuum and line emissions, and identifying …

The Reddening Of Red Supergiants: When Smoke Gets In Your Eyes, Philip Massey, Bertrand Plez, Emily M. Levesque, K. A.G. Olsen, Geoffrey C. Clayton, Eric Josselin

Faculty Publications

Deriving the physical properties of red supergiants (RSGs) depends on accurate corrections for reddening by dust. We use our recent modeling of the optical spectra of RSGs to address this topic. First, we find that previous broadband studies have underestimated the correction for extinction in the visible, and hence the luminosities (if derived from V); the shift in the effective wavelengths of the standard B and V bandpasses necessitates using an effective value of the ratio R′v = 4.2 to correct broadband photometry of RSGs if Rv = 3.1 for early-type stars viewed through the same dust, where we have …

Perspectives Fromafield And Afar:Liberation Historiography:African American Writers And The Challenge Of History, 1781-1861, James D. Hardy Jr.

Civil War Book Review

In a strange land

Scholar reunites American and African-American histories

Direct Constraints On Antarctic Peninsula Ice Sheet Grounding Events Between 5.12 And 7.94 Ma, Philip J. Bart, Dave Egan, Sophie A. Warny

Faculty Publications

[1] How has the Antarctic Ice Sheet responded to or influenced global climate change? This simple question has been difficult to address because the long-term records of the ice sheet's fluctuations are poorly constrained with geologic data from Antarctica. Thus studies to date have not convincingly established how specific Antarctic Ice Sheet events correlate with climatic, eustatic, or other phenomena known from low-latitude and deep-sea records. This study focused on documenting the direct record of ice sheet advance and retreat to the Antarctic Peninsula's shelf edge. On the peninsula's outer shelf, seismic reflectors interpreted to be subglacial unconformities were correlated …

Spectra Of High-Redshift Type Ia Supernovae And A Comparison With Their Low-Redshift Counterparts, I. M. Hook, D. A. Howell, G. Aldering, R. Amanullah, M. S. Burns, A. Conley, S. E. Deustua, R. Ellis, S. Fabbro, V. Fadeyev, G. Folatelli, G. Garavini, R. Gibbons, G. Goldhaber, A. Goobar, D. E. Groom, A. G. Kim, R. A. Knop, M. Kowalski, C. Lidman, S. Nobili, P. E. Nugent, R. Pain, C. R. Pennypacker, S. Perlmutter, P. Ruiz-Lapuente, G. Sainton, B. E. Schaefer, E. Smith, A. L. Spadafora, V. Stanishev, R. C. Thomas, N. A. Walton

Faculty Publications

We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological parameters. The spectra are used to determine the redshift and classify the supernova type, essential information if the supernova are to be used for cosmological studies. Redshifts were derived either from the spectrum of the host galaxy or from the spectrum of the supernova itself. We present evidence that these supernovae are of Type Ia (SNe Ia) by matching to spectra of nearby supernovae. We find that the dates of the spectra relative to maximum light determined from this fitting process are consistent with the dates determined from the photometric light curves, and, moreover, the spectral time sequences for SNe Ia at low and high redshift are indistinguishable. We also show that the expansion velocities measured from blueshifted Ca H and K are consistent with those measured for low-redshift SNe Ia. From these first-level quantitative comparisons we find no evidence for evolution in SN Ia properties between these low- and high-redshift samples. Thus, even though our samples may not be complete, we conclude that there is a population of SNe Ia at high redshift whose spectral properties match those at low redshift. © 2005. The American Astronomical Society. All rights reserved.

Classical And Quantum General Relativity: A New Paradigm, Rodolfo Gambini, Jorge Pullin

Faculty Publications

We argue that recent developments in discretizations of classical and quantum gravity imply a new paradigm for doing research in these areas. The paradigm consists in discretizing the theory in such a way that the resulting discrete theory has no constraints. This solves many of the hard conceptual problems of quantum gravity. It also appears as a useful tool in some numerical simulations of interest in classical relativity. We outline some of the salient aspects and results of this new framework. © World Scientific Publishing Company.

Pocket-Pc Boolean Function Simplification, Ledion Bitincka, George E. Antoniou

Department of Computer Science Faculty Scholarship and Creative Works

In this paper a useful educational tool is presented for minimizing low order Boolean expressions. The algorithm follows the Karnaugh map looping approach. For the implementation, which provides optimal results, C++ coding was used on the Embedded Visual C++ 3.0 Pocket PC using Windows CE Operating System environment. In order to make the overall implementation efficient, the object oriented approach was used. Two examples are presented to illustrate the efficiency of the proposed algorithm. The proposed application is a useful tool for students and professors in the fields of electrical and computer engineering and computing sciences. © 2005 FEI STU.

Table Of Contents

Journal of STEM Teacher Education

No abstract provided.

Behind The Scenes, Janet Z. Burns

Journal of STEM Teacher Education

No abstract provided.

Contact Point, Arthur A. Dugoni School Of Dentistry

Contact Point

No abstract provided.

The Marian Library Newsletter: Issue No. 51, University Of Dayton. Marian Library

Marian Library Newsletter

No abstract provided.

Dentalgram - Vol. 19, No. 12, Loma Linda University School Of Dentistry

Dentalgram

In this issue:

• CDA Journal features five articles authored by faculty
• Dentinal Fluid Transport, a book highlighting the life research of Drs. Ralph Steinman and John Leonora, has been published
• Thanksgiving Baskets project an outstanding success!
• Featured employee
• Department news

Vol. 4, No. 01 (December 2005)

Indiana Law Update

No abstract provided.

Congress And Terri Schiavo: A Primer On The American Constitutional Order, Michael P. Allen

West Virginia Law Review

No abstract provided.

Attempting To Situate Joseph Smith, Grant Underwood

BYU Studies

Undergirding Richard Bushman’s insightful paper is a profound recognition (and a reminder) that histories are the creations of authors, not photographs of the past. Every aspect of writing a history, from the selection of sources to the interpretation of those sources bears the imprint of the author. The profoundly precarious and contingent character of all reconstructions of the past led Roland Barthes to quip that biography is “a novel that dare not speak its name.” Clearly, this is an overstatement, but it does warn us away from an unhealthy critical complacency when engaging in studying written histories.

Joseph Smith And Preexilic Israelite Religion, Margaret Barker

BYU Studies

Terryl Givens has set Joseph Smith in the religious and cultural context of his time and raised many important issues. I should like to take a few of these issues and set them in another context, that of preexilic Jerusalem. I am not a scholar of Mormon texts and traditions. I am a biblical scholar specializing in the Old Testament, and until some Mormon scholars made contact with me a few years ago, I would never have considered using Mormon texts and traditions as part of my work. Since that initial contact I have had many good and fruitful exchanges …

Full Issue, Byu Studies

BYU Studies

No abstract provided.

Southern Alumni, Siu Alumni Association

SIU Alumni Magazine

No abstract provided.

Smooth And Analytic Normal And Canonical Forms For Strict Feedforward Systems, Issa Amadou Tall, Witold Respondek

Miscellaneous (presentations, translations, interviews, etc)

Recently we proved that any smooth (resp. analytic) strict feedforward system can be brought into its normal form via a smooth (resp. analytic) feedback transformation. This will allow us to identify a subclass of strict feedforward systems, called systems in special strict feedforward form, shortly (SSFF), possessing a canonical form which is an analytic counterpart of the formal canonical form. For (SSFF)-systems, the step-by-step normalization procedure of Kang and Krener leads to smooth (resp. convergent analytic) normalizing feedback transformations. We illustrate the class of (SSFF)-systems by a model of an inverted pendulum on a cart.

Familiar Battles For Bioethics: Facing Off Over Transplantation, Paul A. Lombardo

Faculty Publications By Year

No abstract provided.

The Critical Entrepreneurial Competencies Required By Instructors From Institution-Based Enterprises: A Jamaican Study, Raymond Dixon, Ronald L. Meier, Danny C. Brown, Rodney L. Custer

Journal of STEM Teacher Education

No abstract provided.

Index To Volume 42

Journal of STEM Teacher Education

No abstract provided.

Polylogic Minds: Interview With Dr. Soteria (Roula) Svorou, Niko Shido

SWITCH

This interview with linguist Dr. Roula Svorou explores how language connects with fields like cognitive science, technology, philosophy, and digital media to help us understand how humans think and perceive the world. She explains how studying language reveals why computers struggle to truly “understand” and how digital media art could become an important tool for visualizing complex linguistic ideas.