Digital Commons Network^™

Testing For Cointegrating Rank Via Model Selection: Evidence From 165 Data Sets, Badi H. Baltagi, Zijun Wang

Center for Policy Research

The model selection approach has been proposed as an alternative to the popular tests for cointegration such as the residual-based ADF test and the system-based trace test. Using information criteria, we conduct cointegration tests on 165 data sets used in published studies. The empirical results demonstrate the usefulness of the model selection approach for applied researchers.

Reliability Modeling In Spatially Distributed Logistics System, Ni Wang, Jye-Chyi Lu, Paul H. Kvam

Department of Math & Statistics Faculty Publications

This article proposes methods for modeling service reliability in a supply chain. The logistics system in a supply chain typically consists of thousands of retail stores along with multiple distribution centers (DC). Products are transported between DC & stores through multiple routes. The service reliability depends on DC location layouts, distances from DC to stores, time requirements for product replenishing at stores, DC's capability for supporting store demands, and the connectivity of transportation routes. Contingent events such as labor disputes, bad weather, road conditions, traffic situations, and even terrorist threats can have great impacts on a system's reliability. Given the …

A Logistic Regression/Markov Chain Model For Ncaa Basketball, Paul H. Kvam, Joel Sokol

Department of Math & Statistics Faculty Publications

Each year, more than $3 billion is wagered on the NCAA Division I men’s basketball tournament. Most of that money is wagered in pools where the object is to correctly predict winners of each game, with emphasis on the last four teams remaining (the Final Four). In this paper, we present a combined logistic regression/Markov chain model for predicting the outcome of NCAA tournament games given only basic input data. Over the past 6 years, our model has been significantly more successful than the other common methods such as tournament seedings, the AP and ESPN/USA Today polls, the RPI, and …

Statistical Reliability With Applications, Paul H. Kvam, Jye-Chyi Lu

Department of Math & Statistics Faculty Publications

This chapter reviews fundamental ideas in reliability theory and inference. The first part of the chapter accounts for lifetime distributions that are used in engineering reliability analyis, including general properties of reliability distributions that pertain to lifetime for manufactured products. Certain distributions are formulated on the basis of simple physical properties, and other are more or less empirical. The first part of the chapter ends with a description of graphical and analytical methods to find appropriate lifetime distributions for a set of failure data.

The second part of the chapter describes statistical methods for analyzing reliability data, including maximum likelihood …

Use Of Pen-Based Technology In Calculus Courses, John R. Hubbard

Department of Math & Statistics Faculty Publications

The author and his students used Tablet computers in Calculus I and Calculus II classes, providing students with dynamic digital transcripts that they could replay at their convenience. He and his students agreed that these graphic replays provide an effective alternative to the static explanations found in textbooks and in traditional course notes. Two specific examples are given in this paper.

Sustainability Reporting At Higher Education Institutions, Robert Heilmayr

CMC Senior Theses

Multiple declarations, governmental and non-profit organizations and universities have issued a call for proper reporting of social and environmental impacts and initiatives within academia. Such reporting can increase awareness of environmental and social impacts, encourage development of sustainable policy and build a campus culture more committed to sustainability. Sustainability reporting at Higher Education Institutions (HEIs) has the added benefit of being a powerful teaching aid. This paper follows multiple lines of inquiry in order to determine whether HEIs are taking advantage of the opportunities afforded by sustainability reporting. The analysis evaluates the history of sustainability reporting at HEIs and compares …

Antitrust And Inefficient Joint Ventures: Why Sports Leagues Should Look More Like Mcdonald's And Less Like The United Nations, Stephen F. Ross, Stefan Szymanski

Faculty Scholarship

Antitrust law generally favors joint ventures that allow separate firms to integrate economic functions while continuing to compete as independent entities. In evaluating the risks to competition that joint ventures could pose, insufficient attention has been paid to the risk that joint ventures with market power may be structured so that the parties, acting in their independent self interest, will prevent the venture from providing innovative goods and services responsive to consumer demand. In these cases, it may be better if a single firm provided services rather than having them provided jointly.

We illustrate this problem by challenging the conventional …

Specific Antibodies To Recombinant Allergens Of Aspergillus Fumigatus In Cystic Fibrosis Patients With Abpa, Viswanath P. Kurup, Alan P. Knutsen, Richard B. Moss, Naveen K. Bansal

Mathematics, Statistics and Computer Science Faculty Research and Publications

Background

Aspergillus fumigatus, a widely distributed fungus, has been implicated in causing life threatening infections as well as severe asthma and allergic diseases in man. Allergic affliction like allergic bronchopulmonary aspergillosis (ABPA) is a disabling lung disease frequently seen in patients with asthma and cystic fibrosis. Immunodiagnosis of the former is comparatively easier due to the availability of purified antigens and sensitive methods. However, this is not true with cystic fibrosis patients where the prevalence of ABPA is fairly high and the morbidity and mortality are significant.

Methods

In the present study, we have evaluated purified recombinant allergens from …

The Classical Dirichlet Space, William T. Ross

Department of Math & Statistics Faculty Publications

In this survey paper, we will present a selection of results concerning the class of analytic functions f on the open unit disk D := {z ϵ C : │z│ < 1} which have finite Dirichlet integral.

A Curvature-Mediated Mechanism For Localization Of Lipids To Bacterial Poles, Kerwyn Casey Huang, Ranjan Mukhopadhyay, Ned S. Wingreen

Physics

Subcellular protein localization is a universal feature of eukaryotic cells, and the ubiquity of protein localization in prokaryotic species is now acquiring greater appreciation. Though some targeting anchors are known, the origin of polar and division-site localization remains mysterious for a large fraction of bacterial proteins. Ultimately, the molecular components responsible for such symmetry breaking must employ a high degree of self-organization. Here we propose a novel physical mechanism, based on the two-dimensional curvature of the membrane, for spontaneous lipid targeting to the poles and division site of rod-shaped bacterial cells. If one of the membrane components has a large …

The Chang-Los-Suszko Theorem In A Topological Setting, Paul Bankston

Mathematics, Statistics and Computer Science Faculty Research and Publications

The Chang-Łoś-Suszko theorem of first-order model theory characterizes universal-existential classes of models as just those elementary classes that are closed under unions of chains. This theorem can then be used to equate two model-theoretic closure conditions for elementary classes; namely unions of chains and existential substructures. In the present paper we prove a topological analogue and indicate some applications.

Stereotype Susceptibility Narrows The Gender Gap In Imagined Self-Rotation Performance, Maryjane Wraga, Lauren Duncan, Emily C. Jacobs, Molly Helt, Jessica Church

Psychology: Faculty Publications

Three studies examined the impact of stereotype messages on men's and women's performance of a mental rotation task involving imagined self-rotations. Experiment 1 established baseline differences between men and women; women made 12% more errors than did men. Experiment 2 found that exposure to a positive stereotype message enhanced women's performance in comparison with that of another group of women who received neutral information. In Experiment 3, men who were exposed to the same stereotype message emphasizing a female advantage made more errors than did male controls, and the magnitude of error was similar to that for women from Experiment …

Applying The Laws Of Logic To The Logic Of Laws, Hillel Bavli

Fordham Urban Law Journal

The article begins by discussing the difficulties of proving consistency within a formal legal system generally. After establishing the importance of a formalized legal model as a prerequisite of rigorous examination of consistency, it proceeds to investigate issues intrinsic to the current system of law that may prevent formalization of a just legal system as currently conceived. The article argues that flexibility inherent in a just legal system may foreclose the possibility of legal formalization or any comprehensive model thereof. The article concludes, however, that a model whose purpose is the examination of consistency within a system need not necessarily …

Monetizing The Benefits Of Risk And Environmental Regulation, W. Kip Viscusi

Fordham Urban Law Journal

The Article responds to the school of thought reflected in the book "Priceless: On Knowing the Price of Everything and the Value of Nothing" that opposes the economists' attempts to monetize the value of environmental amenities and the value of risks to life and health. It applies the value of statistical life ("VSL") concept to regulatory decisions in order to decide whether the adoption of a regulation makes economic sense. VSL measures the value of life, as judged by measuring the amount of risk of injury workers in a particular industry are willing to take on, and the costs associated …

How Much Is That Doggy In The Window? The Inevitably Unsatisfying Duty To Monetize, Adam F. Scales

Fordham Urban Law Journal

The Article is in response to Professor Kip Viscusi's "Monetizing the Benefits of Risk and Environmental Regulation." It emphasizes several issues Viscusi's "value of a statistical life" (VSL) methodology fails to capture: (1) the distinction and difference in value between willingness to pay for a regulation and willingness to accept; (2) the fact that the many risks, for which regulations have been adopted, are so slight that the value to many is actually the value of not seeing someone else suffer harm in the absence of regulation; (3) real life irrational decision-making does not easily fit into an economic value; …

The Bison: 2006, Howard University

Howard University Yearbooks

This digital object was funded in part through a grant from the Andrew W. Mellon Foundation. The digitalization of this object was part of a collaborative effort with the Washington Research Library Consortium and George Washington University.

Effects Of Rural High School Size And Socioeconomic Status On Achievement Of Tenth Graders, Peter W. O'Rourke

All-Inclusive List of Electronic Theses and Dissertations

The current emphasis on the equal access to a qualityEducation for all children, highlighted in the federal No Child Left Behind (NCLB) legislation and Public Law 221 in Indiana has stimulated much discussion on the ability of schools urban, suburban, and rural to meet this challenge. Moreover, the thrust of currentEducational initiatives in Indiana emphasize the closing of achievement gaps between various student cohorts; of particular interest is the capacity of rural high schools to reduce this gap for economically disadvantaged students. The purpose of this study was to investigate the effects of enrollment size and socioeconomicstatus (SES) as measured …

Effects Of Student Response System Use On Student Learning And Verbal Participation For A Sixth-Grade Mathematics Unit, Gary Thomas Grissom Ii

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this quasi-experimental quantitative study was to examine the effects of Student Response System (SRS) use on student learning and verbal participation in an authentic K-12 classroom environment for a sixth-grade mathematics unit on probability. A self-report survey was administered to report student attitudes regarding SRS use for the unit. A sample of 84 sixth-grade students from a rural Midwestern elementary school was used for the study by established grouping. Two sections of the sixth-grade class were used as the treatment condition of SRS use and two sections of the sixth-grade class were used as the control group …

Constraints On The Nucleon Strange Form Factors At Q2 ∼ 0.1 Gev2, K. A. Aniol, D. S. Armstrong, T. Averett, H. Benaoum, P. Y. Bertin, E. Burtin, J. Cahoon, G. D. Cates, C. C. Chang, Y.-C. Chao, D. Deepa, H. Ibrahim

Mechanical & Aerospace Engineering Faculty Publications

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron–proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering angle (θ_lab) = 6.0○ , with the result A PV = ( − 1.14 ± 0.24 ( stat ) ± 0.06 ( syst ) ) × 10⁻⁶ . From this we extract, at Q² = 0.099 GeV² , the strange form factor combination G^s_E + 0.080 G^s_M = 0.030 ± 0.025 ( stat ) ± 0.006 ( syst ) ± …

Test 1877: Challenger Mt 655b Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1891: Kubota L5030 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Redefining The Traditional Pillars Of German Legal Studies And Setting The Stage For Contemporary Interdisciplinary Research, Stephan Leibfried, Christoph Möllers, Christoph Schmid, Peer Zumbansen

Articles & Book Chapters

No abstract provided.

Auditing Fair Value Measurements And Disclosures: A Toolkit For Auditors ["Fair Value Toolkit"]., American Institute Of Certified Public Accountants (Aicpa)

Guides, Handbooks and Manuals

No abstract provided.

Simultaneous Ejection Of Six Electrons At A Constant Potential By Hexakis(4-Ferrocenylphenyl)Benzene, Vincent J. Chebny, Dwairath Dhar, Sergey V. Lindeman, Rajendra Rathore

Chemistry Faculty Research and Publications

A simple synthesis of a dendritic hexaferrocenyl electron donor (5) is described in which six ferrocene moieties are connected at the vertices of the propeller of the hexaphenylbenzene core. The molecular structure of 5 is confirmed by X-ray crystallography. An electrochemical analysis along with redox titrations (which are tantamount to coulometry) confirmed that it ejects six electrons at a single potential.

Constitutional Tipping Points: Civil Rights, Social Change, And Fact-Based Adjudication, Suzanne B. Goldberg

Faculty Scholarship

This Article offers an account of how courts respond to social change, with a specific focus on the process by which courts "tip" from one understanding of a social group and its constitutional claims to another. Adjudication of equal protection and due process claims, in particular, requires courts to make normative judgments regarding the effect of traits such as race, sex, sexual orientation, or mental retardation on group members' status and capacity. Yet, Professor Goldberg argues, courts commonly approach decisionmaking by focusing only on the 'facts" about a social group, an approach that she terms 'fact-based adjudication." Professor Goldberg critiques …

Intellectual Property Law, David L. Mccombs, Phillip B. Philbin

SMU Law Review

No abstract provided.

Instrumental Theory Of Market Power And Antitrust Policy, An, Jeffrey L. Harrison

SMU Law Review

No abstract provided.

Ligand-Promoted Solvent-Dependent Ionization And Conformational Equilibria Of Re(Co)3Br[Ch2(S-Tim)2] (Tim = 1-Methylthioimidazolyl). Crystal Structures Of Re(Co)3Br[Ch2(S-Tim)2] And {Re(Co)3(Ch3Cn)[Ch2(S-Tim)2]}(Pf6), Rosalice M. Silva, Brendan J. Liddle, Sergey V. Lindeman, Mark D. Smith, James R. Gardinier

Chemistry Faculty Research and Publications

The compounds Re(CO)₃Br[CH₂(S-tim)₂] (1) and {Re(CO)₃(CH₃CN)[CH₂(S-tim)₂]}(PF₆) (2), where tim is 1-methylthioimidazolyl, were prepared in high yields and characterized both in the solid state and in solution. The solid-state structures show that the ligand acts in a chelating binding mode where the eight-member chelate ring adopts twist-boat conformations in both compounds. A comparison of both solid-state IR data for CO stretching frequencies and the solution-phase voltammetric measurements for the Re^1+/2+ couples between 1, 2, …

Recent Trends In Robot-Assisted Therapy Environments To Improve Real-Life Functional Performance After Stroke, Michelle J. Johnson

Biomedical Engineering Faculty Research and Publications

Upper and lower limb robotic tools for neuro-rehabilitation are effective in reducing motor impairment but they are limited in their ability to improve real world function. There is a need to improve functional outcomes after robot-assisted therapy. Improvements in the effectiveness of these environments may be achieved by incorporating into their design and control strategies important elements key to inducing motor learning and cerebral plasticity such as mass-practice, feedback, task-engagement, and complex problem solving.

This special issue presents nine articles. Novel strategies covered in this issue encourage more natural movements through the use of virtual reality and real objects and …

Twisted Solenoids And Maps Of R2 Whose Minimal Sets Are Cantor Sets, William Basener, Carl V. Lutzer

Articles

We construct homeomorphisms of R2 that have a Cantor set which is a minimal set. Some of these homeomorphisms are proven to be C^(infinity), while the others are conjectured to be nondifferentiable (Refer to PDF file for exact formulas).