Social and Behavioral Sciences Commons^™

Coverage Properties Of Optimized Confidence Intervals For Proportions, John P. Wendell, Sharon P. Cox

Journal of Modern Applied Statistical Methods

Wardell (1997) provided a method for constructing confidence intervals on a proportion that modifies the Clopper-Pearson (1934) interval by allowing for the upper and lower binomial tail probabilities to be set in a way that minimizes the interval width. This article investigates the coverage properties of these optimized intervals. It is found that the optimized intervals fail to provide coverage at or above the nominal rate over some portions of the binomial parameter space but may be useful as an approximate method.

Bias Affiliated With Two Variants Of Cohen’S D When Determining U1 As A Measure Of The Percent Of Non-Overlap, David A. Walker

Journal of Modern Applied Statistical Methods

Variants of Cohen’s d, in this instance dt and d_{adj, has the largest influence on U1 measures used with smaller sample sizes, specifically when n1 and n2 = 10. This study indicated that bias for variants of d, which influence U1 measures, tends to subside and become more manageable, in terms of precision of estimation, around 1% to 2% when n1 and n2 = 20. Thus, depending on the direction of the influence, both dt and dadj are likely to manage bias in the U1 measure quite well for smaller to …}

A Longitudinal Analysis Of The Journal Of Transportation Management: 1996 - 2004, Jerry W. Wilson, Cindy H. Randall

Journal of Transportation Management

The first issue of the Journal of Transportation Management (JTM) was published in the Fall of 1989. This new publication was to provide an outlet for research and writing of a practical nature, of direct benefit to logistics and transportation managers and their firms. Since that first issue, the Journal has weathered three sets of editorial staff that have collectively produced sixteen full or partial volumes. This article provides some of the history of the JTM and an analysis of some of the characteristics of its contributors during the tenure of its third and current editor, Jerry Wilson.

Financing America’S Roads: The Past Is Prologue, Michael J. Gravier, M Theodore Farris Ii

Journal of Transportation Management

This article provides a historical perspective of American roadway financing. It explores revenue collection and expenditures at the federal, state, and local governmental levels. Accounting practices of the Highway Trust Fund are discussed including the enactment of the Truth in Budgeting Act to shift revenue collection closer to a direct-user tax. Factors affecting roadway tax revenues are identified and the impact of increasing taxes is discussed. Four key considerations which will continue to shape roadway revenue collection are identified.

The Importance Of Logistics Capability In The E-Commerce Market, Jay Joong-Kun Cho, John Ozment

Journal of Transportation Management

This research is focused on the importance of logistics capability and its effect on firm performance in the e-commerce market. Technology-based net companies are known to have poor business network and infrastructure compared to resource-based traditional non-net based companies. A multiple-item logistics capability measurement scale is used to measure logistics capability of the firm. Firm performance is also measured by multiple items. The results indicate that logistics capability has a positive relationship with firm performance and this relationship is stronger for net based firms than for non-net based firms. Logistics capability is perceived as the firm’s critical capability in providing …

Regulatory Perspectives Of The Air Express Industry, Kian Chuan Chang, Mark Brian Debowski

Journal of Transportation Management

In its early days, the international air express industry was synonymous with on-board couriers, carrying bags of documents on commercial flights. The industry has changed dramatically. That initial focus on documents has widened into the transport of packages and freight, carried by fleets of fully owned or dedicated aircraft, trucks, trains and delivery vans. The bulk of the business is dominated by 24-hour guaranteed and next-day deliveries. “Every day, hundreds of thousands of employees serve the distribution needs of an increasing number of businesses worldwide from one region to another” (European Express Association, 2002). The express companies are also making …

Using Active Learning To Enhance Supply Chain Knowledge, Joe B. Hanna, Brian J. Gibson, Randall Chapman

Journal of Transportation Management

The constantly evolving logistics discipline confronts practitioners with the challenge of keeping pace with the many advancements in the field. The authors examine ways in which logistics trainers may be able to improve their ability to effectively convey knowledge to logistics practitioners by supplementing the traditional lecture-based approaches with active learning exercises. The results of a recently conducted survey detailing current usage levels and approaches of active learning exercises, specifically simulations, by logistics educators is then presented. The paper also summarizes comments from individual simulation participants after they have completed a training experience designed to immerse them in a real …

Identifying Robust, Parsimonious Neighborhood Indicators, George Galster, Chris Hayes, Jennifer Johnson

Urban Studies and Planning Faculty Research Publications

Identifying a few indicators that summarily tracked key dimensions of neighborhoods would be invaluable for neighborhood monitoring and measuring impacts of interventions. Our goal is to search empirically for such robust, parsimonious indicators. In five cities we analyze the interrelationships among a broad set of census tract indicators related to: mortgage market activity; home prices; jobs and firms; demographic, socio-economic, and housing stock characteristics; crime; and public assistance and health. Through factor analysis we identify four to six neighborhood dimensions among these indicators that are common across cities. Using regression we identify a parsimonious number of indicators that are inexpensive, …

Sequential Super-Stereotypy Of An Instinctive Fixed Action Pattern In Hyper-Dopaminergic Mutant Mice: A Model Of Obsessive Compulsive Disorder And Tourette's, Kent C. Berridge, J Wayne Aldridge, Kimberly R. Houchard, Xiaoxi Zhuang

Wayne State University Associated BioMed Central Scholarship

Abstract

Background

Excessive sequential stereotypy of behavioral patterns (sequential super-stereotypy) in Tourette's syndrome and obsessive compulsive disorder (OCD) is thought to involve dysfunction in nigrostriatal dopamine systems. In sequential super-stereotypy, patients become trapped in overly rigid sequential patterns of action, language, or thought. Some instinctive behavioral patterns of animals, such as the syntactic grooming chain pattern of rodents, have sufficiently complex and stereotyped serial structure to detect potential production of overly-rigid sequential patterns. A syntactic grooming chain is a fixed action pattern that serially links up to 25 grooming movements into 4 predictable phases that follow 1 syntactic rule. New …

Wsuls 2005 Annual Report, Wayne State University Library System

Library Publications

2005 Annual Report includes: Message from the Dean; Access to New Resources and Services; Events; New Faculty; New Librarians; Grants, Awards, and Honors; Statistics; Donor Profiles; Donors

Fundamentals Of Collection Development And Management [Book Review], Robert P. Holley

School of Information Sciences Faculty Research Publications

No abstract provided.

Genetics Home Reference: Locating Easy-To-Understand Genetics Information, Deborah H. Charbonneau, Annette M. Healy

Library Scholarly Publications

This article describes the Genetics Home Reference, the National Library of Medicine's searchable Web resource that provides reliable information about genetic conditions, genes, and chromosomes and their relationship to the health of individuals, families, or populations. This resource contains descriptions of hundreds of genes and genetic conditions, with new content being added regularly. Features of the resource will be described as well as the browse and search methods used to access the information.