Digital Commons Network^™

Robust Estimation Of Multivariate Failure Data With Time-Modulated Frailty, Pingfu Fu, J. Sunil Rao, Jiming Jiang

Journal of Modern Applied Statistical Methods

A time-modulated frailty model is proposed for analyzing multivariate failure data. The effect of frailties, which may not be constant over time, is discussed. We assume a parametric model for the baseline hazard, but avoid the parametric assumption for the frailty distribution. The well-known connection between survival times and Poisson regression model is used. The parameters of interest are estimated by generalized estimating equations (GEE) or by penalized GEE. Simulation studies show that the procedure is successful to detect the effect of time-modulated frailty. The method is also applied to a placebo controlled randomized clinical trial of gamma interferon, a …

Some Reflections On Significance Testing, Thomas R. Knapp

Journal of Modern Applied Statistical Methods

This essay presents a variation on a theme from my article “The use of tests of statistical significance”, which appeared in the Spring, 1999, issue of Mid-Western Educational Researcher.

Vol. 1, No. 2 (Full Issue), Jmasm Editors

Journal of Modern Applied Statistical Methods

No abstract provided.

Null Distribution Of The Likelihood Ratio Statistic For Feed-Forward Neural Networks, Douglas Landsittel, Harshinder Singh, Vincent C. Arena, Stewart J. Anderson

Journal of Modern Applied Statistical Methods

Despite recent publications exploring model complexity with modern regression methods, their dimensionality is rarely quantified in practice and the distributions of related test statistics are not well characterized. Through a simulation study, we describe the null distribution of the likelihood ratio statistic for several different feed-forward neural network models.

Combining Quantum Mechanical Calculations And A Χ^2 Fit In A Potential Energy Function For The Co_2 + O^+ Reaction, Ellen F. Sawilowsky

Journal of Modern Applied Statistical Methods

In order to compute a highly accurate statistical rate constant for the CO2 + O⁺ reaction, it is necessary to first calculate the potential energy of the system at many different geometric configurations. Quantum mechanical calculations are very time-consuming, making it difficult to obtain a sufficient number to allow for accurate interpolation. The number of quantum mechanical calculations required can be significantly reduced by using known relations in classical physics to calculate energy for configurations where the oxygen is relatively far from the CO2. A chi-squared fit to quantum mechanical points is obtained for these configurations, and the resulting …

Type I Error Rates For Rank-Based Tests Of Homogeneity Of Slopes, Alan J. Klockars, Tim P. Moses

Journal of Modern Applied Statistical Methods

The purpose of this study was to explicate two issues concerning the standard and rank based test of homogeneity of slopes. Two alternative ranking methods intended to address nonnormality and additive treatment effect patterns were developed and compared in terms of their ability to control Type I error. The results replicated previous findings of inflated Type I error rates with leptokurtic curves and with rank based tests with some patterns of additive treatment effects. The new nonparametric procedures generally control Type I error although they were slightly inflated with skewed distributions.

Exploration Of Distributions Of Ratio Of Partial Sum Of Sample Eigenvalues When All Population Eigenvalues Are The Same, Moonseong Heo

Journal of Modern Applied Statistical Methods

This paper explores empirically the first two moments of ratio of the partial sum of the first two sample eigenvalues to the sum of all eigenvalues when the population eigenvalues of a covariance matrix are all the same. Estimation of the first two moments can be practically crucial in assessing non-randomness of observed patterns on planar graphical displays based on lower rank approximations of data matrices. For derivation of the moments, exact and large sample asymptotic distributions of the sample ratios are reviewed but neither can be applicable to derivation of the moments. Therefore, I rely on simulations, where data …

Chronic Disease Data And Analysis: Current State Of The Field, Ralph D'Agostino Sr., Lisa M. Sullivan

Journal of Modern Applied Statistical Methods

Chronic disease usually spans years of a person’s lifetime and includes a disease free period, a preclinical, or latent period, where there are few overt signs of disease, a clinical period where the disease manifests and is eventually diagnosed, and a follow-up period where the disease might progress steadily or remain stable. It is often of interest to investigate the relationship between risk factors measured at a point in time (usually during the disease free or preclinical period), and the development of disease at some future point (e.g., 10 years later). We outline some popular designs for the identification of …

Faculty Senate Meeting Minutes - November 2002, Faculty Senators

Minutes 2002-2003

This is the archived record of the November 2002 faculty senate meeting minutes. Please contact the Faculty Senate president or JagWorks Repository Administrator to request access to this document.

Lsay Cohort Report The Year 9 Class Of 1998 In 2001: Education, Employment And Interests, Sheldon Rothman

LSAY Cohort Reports

This is the third in a series of annual reports on the activities of the Year 9 class of 1998 in the Longitudinal Surveys of Australian Youth (LSAY) project during the previous year. It provides details of the experiences of the cohort in 2001 and, when used with previous Cohort Reports for 1999 and 2000, can be used to monitor annual changes within the cohort.

Teachers' Perceptions On Special Education Students' Social Skills And The Effect Of Peer Perceptions In The General Educational Classroom., Erin E. Harman

Theses & Honors Papers

This study identified inconsistencies between teachers' perceptions of students with disabilities and parallels between the lack of positive peer perceptions and the inconsistent perceptions of general and special education teachers. To establish data this study used a selective group of seventh grade general and special education teachers from a middle school in central Virginia. This study also used one general education classroom containing students with and without disabilities. General and Special Education teachers were surveyed using the Profile/ Form Walker-McConnell Scale of Social Competence and School Adjustment. Students used a modified version of the peer interpersonal assessment developed by Farmer, …

The Silent Body Of Audrey Santo, Mathew N. Schmalz

Religious Studies Faculty Scholarship

An ethnographic consideration of the devotion surrounding Audrey Marie Santo, a stigmatist and victim soul in Worcester, Massachusetts. The article uses the theme of the “silent body” to connect the Audrey Santo phenomenon to contemporary academic understandings of the body and embodiment.

Que Ondee Sola - November 2002, Michael Rodriguez-Muniz

Que Ondee Sola

Student publication founded in 1972, articles include: Still Missing: Latino Professors, Unveiling Possibilities, Con Palabras Profeticas, The Slaves of the 21st Century, Two Flags, Illegal Barriers to an Education, Condoms and Que Ondee Sola, When We Met Pinero, Getting Out the Latino Vote, 10 Reasons, Bio: Elizam Escobar, Poetry

Policy Profiles Vol. 2 No. 5 November 2002, Northern Illinois University Center For Governmental Studies, J. Dixon Esseks

Policy Profiles

New Homes in Rural Areas: Agricultural, Fiscal, and Public Safety Impacts

Hudson Valley Catholic Deaf Center, November 2002

Hudson Valley Catholic Deaf Center

A newsletter published for Deaf Catholics in Poughkeepsie,NY

Hudson Valley Catholic Deaf Center Finding Aid

Floral Sex Ratios And Gynomonoecy In Solidago (Asteraceae), Robert I. Bertin, Gregory M. Gwisc

Biology Department Faculty Scholarship

Gynomonoecy is the sexual system in which individual plants bear both female and bisexual flowers. Little attention has been paid to the adaptive significance of this sexual system, which is particularly prevalent in the Asteraceae. We investigated one hypothesized advantage of having two flower types, namely that this arrangement permits flexibility in allocation of resources to male and female reproductive functions. We examined six species of goldenrod (Solidago), a genus of gynomonoecious, perennial herbs. In greenhouse experiments, we varied one or more of three environmental variables - light, nutrients and water - and/or examined heads in different positions on the …

Tarble Arts Center Newsletter November 2002, Tarble Arts Center

Tarble Arts Center Newsletter

No abstract provided.

Spartan Daily, November 1, 2002, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 119, Issue 46

Environmental News

Journal of Environmental and Sustainability Law

No abstract provided.

What Actions Cause One To Be A Generator In Order To Be Exempted From The Resource Conservation And Recovery Act? United States V. Sims Bros. Constr., Inc. , Leecia D. Carnes

Journal of Environmental and Sustainability Law

No abstract provided.

Nove2002, Robert Kelly

Robert Kelly Manuscripts

From November 2002 Robert Kelly Archive.

Members In Business And Industry, November 2002, American Institute Of Certified Public Accountants (Aicpa)

Newsletters

No abstract provided.

Members In Education, November 2002, American Institute Of Certified Public Accountants (Aicpa)

Newsletters

No abstract provided.

Flexible Roofing Facility: 2001 Summer Test Results, Florida Solar Energy Center, Jeffrey Sonne

FSEC Energy Research Center®

The Flexible Roof Facility (FRF) is a test facility in Cocoa, Florida designed to evaluate five roofing systems at a time against a control roof with dark shingles. The intent of the testing is to evaluate how roofing systems impact summer residential cooling energy use and peak demand. In the summer of 2001, the following roofing systems were tested.

Cell # Description

1. Weathered white barrel tile with sealed attic
2. Double roof with radiant barrier, sealed attic and insulated roof deck
3. High reflectance brown metal shingle with vented attic
4. Terra cotta barrel tile with vented attic
5. Dark shingles with standard attic …

Energy And Environmental Integration Through A Green Municipality Designation, Florida Solar Energy Center, Eric Martin

FSEC Energy Research Center®

Most local green building programs in existence seek to bestow a "green designation" on a builder, building owner, or developer with residential, commercial, and development standards. Municipalities, however, play an important role in making green building become "business as usual" rather than a conscious choice made by few. Municipalities can set an example to the community by incorporating green building techniques in the construction and operation of public and government buildings, play a vital role in community education, and can create incentives and mandates to foster green building within the community. Florida's green building program has set out to create …

Letter From The Providence College Department Of Theatre, Dance, And Film To The Dominican Sisters, Providence College Department Of Theatre, Dance, And Film

Playbill and Promotion

Providence College Department of Theatre, Dance & Film

Letter from the Providence College Department of Theatre, Dance, and Film to the Dominican Sisters

November 1, 2002

Rydberg-Atom Population Transfer By Population Trapping In A Chirped Microwave Pulse, J. Lambert, Michael Noel, T. F. Gallagher

Physics Faculty Research and Scholarship

We demonstrate that Rydberg atoms can be transferred to states of lower principal quantum number by exposing them to a frequency chirped microwave pulse. Specifically, we have transferred n=75 atoms to n=66 with a 400-ns pulse chirped from 7.8 to 11.8 GHz. In spite of the large number of coupled levels, using a simplified model we can describe the process reasonably well as a sequence of adiabatic rapid passages.

Information Outlook, November 2002, Special Libraries Association

Information Outlook, 2002

Volume 6, Issue 11

The Opinion – Volume 4, November 2002, William Mitchell College Of Law

The Opinion

Selected Table of Contents

• Sentencing and the Federal Judiciary / Berglund, Gena; Vue-Benson, Robin
• Standing Room Only / Bower, Lori
• Heavy Breathing / Bakken, Shawn
• Rebellious Lawyering Conference: An Experience in Disparity / Berglund, Gena
• Strange Judicial Opinions / McClurg, Andrew
• Now, Not Playing in a Courtroom Near You... / Dady, Sara
• The Law Student's Cookbook / Lorente, Alfredo

Editorial Board

Kilgus, Mary.; Dady, Sara

Design And Development Of Instructional Material, Kishor Chandra Satpathy, Krishna Murari Pandey

Book Chapters

No abstract provided.