Digital Commons Network^™

Roc Surfaces In The Presence Of Verification Bias, Yueh-Yun Chi, Xiao-Hua (Andrew) Zhou

UW Biostatistics Working Paper Series

In diagnostic medicine, the Receiver Operating Characteristic (ROC) surface is one of the established tools for assessing the accuracy of a diagnostic test in discriminating three disease states, and the volume under the ROC surface has served as a summary index for diagnostic accuracy. In practice, the selection for definitive disease examination may be based on initial test measurements, and induces verification bias in the assessment. We propose here a nonparametric likelihood-based approach to construct the empirical ROC surface in the presence of differential verification, and to estimate the volume under the ROC surface. Estimators of the standard deviation are …

Mustang Daily, September 7, 2007

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

The Tiger Vol. 101 Issue 13 2007-09-07, Clemson University

Tiger Newspapers

No abstract provided.

Faculty Senate Meeting Minutes Sept 7, 2007, A-State Faculty Senate

Faculty Senate Minutes

No abstract provided.

Group Rekeying Schemes For Secure Group Communication In Wireless Sensor Networks, Yong Wang, Byrav Ramamurthy, Yuyan Xue

School of Computing: Technical Reports

Wireless sensor networks are promising solutions for many applications. However, wireless sensor nodes suffer from many constraints such as low computation capability, small memory, limited energy resources, and so on. Grouping is an important technique to localize computation and reduce communication overhead in wireless sensor networks. In this paper, we use grouping to refer to the process of combining a set of sensor nodes with similar properties. We propose four centralized group rekeying (CGK) schemes for secure group communication in sensor networks. The lifetime of a group is divided into three phases, i.e., group formation, group maintenance, and group dissolution. …

Colored Dissolved Organic Matter (Cdom) Workshop Summary, Catherine A. Corbett

Reports

The Charlotte Harbor NEP hosted a 2-day technical exchange workshop on CDOM as an imperative first step in implementation of the program’s numeric water quality targets to initiate a dialogue with local researchers and resource managers on the importance of CDOM dynamics and the roles it plays in estuaries. Charlotte Harbor National Estuary Program hosted the technical exchange workshop to discuss and gain a better understanding of CDOM dynamics in the Lemon Bay, Charlotte Harbor and Estero Bay watersheds.

Illinois State University Report, September 7, 2007, Illinois State University

Illinois State University Report (1966-2012)

Illinois State University bi-weekly employee newsletter.

Daily Eastern News: September 07, 2007, Eastern Illinois University

September

No abstract provided.

The Effect Of A New Version Of Software On Its Use: A Case Study Of A Course Management System, John Beckett

Faculty Works

Course Management Systems (CMS) are used to support the growing trend of colleges and universities to offer classes at a distance, and to use technology to provide resources and communication with and for students in traditional classroom settings. Actual use and success of these systems has been mixed in practice, however, for reasons which are not entirely clear.

The theory of Diffusion of Innovations (DOI) described and codified by Everett M. Rogers in 1962 is used to describe how innovations are selected, adopted, and brought to bear on the needs of people with jobs to do. Gary C. Moore and …

The Colby Echo (2007-09-07), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.

Phenomenological Model For Infrared Emissions From High-Explosive Detonation Fireballs, Kevin C. Gross

Theses and Dissertations

Time-resolved infrared spectra were recently collected via a Fourier-transform spectrometer (FTS) from the detonation fireballs of two types of conventional military munitions (CMM) as well as uncased TNT and four types of enhanced novel explosives (ENEs). The CMM spectra are dominated by continuum emission, and a single-temperature Planckian distribution, modified for atmospheric attenuation, captures most of the variation in the data. Some evidence of selective emission is identified by systematic patterns in the fit residuals. The behavior of these systematic residuals affords a distinction between the two types of CMMs studied. The uncased TNT and ENE spectra appear strongly influenced …

The Inkwell, Armstrong Atlantic State University

The Inkwell

No abstract provided.

An Efficient Scheme For Removing Compromised Sensor Nodes From Wireless Sensor Networks, Yong Wang, Byrav Ramamurthy, Xukai Zou, Yuyan Xue

School of Computing: Technical Reports

Key management is a core mechanism to ensure the security of applications and network services in wireless sensor networks. It includes two aspects: key distribution and key revocation. Key distribution has been extensively studied in the context of sensor networks. However, key revocation has received relatively little attention. Existing key revocation schemes can be divided into two categories: centralized key revocation scheme and distributed key revocation scheme. In this paper, we first review and summarize the current key revocation schemes for sensor networks. Then, we present an efficient scheme of removing compromised sensor nodes from wireless sensor networks. Unlike most …

Ukeying: A Key Management Framework For Wireless Sensor Networks Utilizing A Unique Session Key, Yong Wang, Byrav Ramamurthy, Yuyan Xue

School of Computing: Technical Reports

Key management is a core mechanism to ensure the security of applications and network services in wireless sensor networks. Key management includes two aspects: key distribution and key revocation. The goal of the key distribution is to establish the required keys between sensor nodes which must exchange data. Key revocation is used to remove compromised sensor nodes from the network. Although many key distribution schemes and key revocation schemes have been proposed in the literature, there is a lack of a framework which can integrate the schemes. In this paper, we propose a key management framework, uKeying, for wireless sensor …

Commonwealth Times 2007-09-06

Commonwealth Times, 1969-

No abstract provided.

Exhuming Norwegian Ultrahigh-Pressure Rocks: Overprinting Extensional Structures And The Roleof The Nordfjord-Sogn Detachment Zone, Scott M. Johnston, Bradley R. Hacker, Torgeir B. Andersen

Physics

The Nordfjord-Sogn Detachment Zone (NSDZ) is widely cited as one of the primary structures responsible for the exhumation of Norwegian (ultra)high-pressure (UHP) rocks. Here we review data from the considerable volume of research describing this shear zone, and compile a strike-parallel cross section along the NSDZ from the Solund Basin in the south to the Sørøyane UHP domain in the north. This cross section highlights several previously unrecognized patterns, revealing a shear zone with top-to-the-west asymmetric fabrics that (1) initiated at amphibolite facies, (2) overprints metamorphic breaks and tectonostratigraphic contacts, and (3) has a gradational continuum of muscovite cooling ages. …

Western News, Sept. 6, 2007, Western Michigan University

Western News (1972-2018)

Story highlights: Greetings from President Dunn; Gilchrist, Harik, Powell appointed to key posts; Goggle Earth contest motivates students to rebuild WMU; On Campus with Barbara Banks.

The Statesman, V. 51, I. 02, Stony Brook University

Stony Brook Statesman-Sucolian

v. 51, i. 02

Ua12/2/1 College Heights Herald, Vol. 83, No. 3, Wku Student Affairs

WKU Administration Documents

WKU campus newspaper reporting campus, athletic and Bowling Green, Kentucky news.

September 6, 2007, James Madison University

The Breeze, 2000-2009

The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.

R.I.T. News & Events - September 6, 2007, University News Services, Rochester Institute Of Technology

University Publications

Main features of this issue: Destler: Imagine RIT as the firstinnovation university; Big names highlight Brick City entertainment; iPhone whiz settles in at RIT; Web site helps students stay inThe Loop; New chef bringsgood taste and know-how to RIT campus kitchens; RIT researcher honored for advancing imaging science; Destler to visit RIT alumni chapters; RIT faculty rise up the ranks; New CAST appointments

Illinois State University Report, September 6, 2007, Illinois State University

Illinois State University Report (1966-2012)

Illinois State University bi-weekly employee newsletter.

Development Of A Method For Calculating Delta Scuti Rotational Velocities And Hydrogen Beta Color Indices, Tabitha Christi Buehler

Theses and Dissertations

To add to the understanding of the structure and evolution of Delta Scuti stars, 167 Delta Scutis north of -01 degrees declination and brighter than 13th magnitude have been observed spectroscopically. A method for calculating rotational velocity values and Hydrogen-Beta color indices for the stars in the data set with no previously published values is developed, using the stars in the data set brighter than 7th magnitude. Rotational velocity values for four stars with previously unknown values and Hydrogen-Beta index values for five stars with previously unknown values are calculated.

Faculty Senate Chronicle For September 6, 2007, Richard Stratton

The University of Akron Faculty Senate Chronicle

Minutes of the regular meeting of The University of Akron Faculty Senate on September 7, 2007.

The Grizzly, September 6, 2007, Matt Flyntz, Lane Taylor, Salia Zouande, Gianna Paone, Ashley Higgins, Heather Turnbach, Michael Thomas, Zakary Arnhold, Kristin O'Brassill, Robert Whitehead, Jill Alspach, Alex Ernst, Jason Davis, Kristen Gallagher, Katie Callahan, Russell Smith

Ursinus College Grizzly Newspaper, 1978 to Present

The Car Share Revolution • Ursinus Initiates Film Fest • Facilities Makes Renovation Waves • Stopping the Stork: Emergency Contraception • A Look at The Rising Suns • Spotlight on Sustain UC • Book Review: What is What by Dave Eggers • Opinions: With Gonzales' Resignation, Exodus Continues; Harry Potter and the Satanic Pre-Teens; Don't Paint Over Our Freedom of Expression • Intramural Intervention • Field Hockey Flavor • Football Sets the Bar High with 28-0 Rout of LaSalle • Fight for the Top

Inclusion Of Electrochemically Active Guests By Novel Oxacalixarene Hosts, Daniel Sobransingh, Mahender B. Dewal, Jacob Hiller, Mark D. Smith, Linda S. Shimizu

Faculty Publications

We demonstrate for the first time the utility of oxacalixarenes as hosts and investigate the forces that influence the thermodynamics of binding.

The Acs Survey Of Galactic Globular Clusters: M54 And Young Populations In The Sagittarius Dwarf Spheroidal Galaxy, Michael H. Siegel, Aaron Dotter, Steven R. Majewski, Ata Sarajedini, Brian Chaboyer, David L. Nidever, Jay Anderson, Antonio Martin-French, Alfred Rosenberg, Luigi R. Bedin, Antonio Aparicio, Ivan King, Giampolo Piotto, I. Neill Reid

Dartmouth Scholarship

As part of the ACS Survey of Galactic Globular Clusters, we present new Hubble Space Telescope photometry of the massive globular cluster M54 (NGC 6715) and the superposed core of the tidally disrupted Sagittarius (Sgr) dSph galaxy. Our deep (F606W ~ 26.5), high-precision photometry yields an unprecedentedly detailed color-magnitude diagram showing the extended blue horizontal branch and multiple main sequences of the M54+Sgr system. The distance and reddening to M54 are revised using both isochrone and main-sequence fitting to (m - M)₀ = 17.27 and E(B - V) = 0.15. Preliminary assessment finds the …

Novel Perturbation Approach For The Structure Factor Of The Attractive Hard-Core Yukawa Fluid, Andrij Trokhymchuk, Roman Melnyk, Filip Moucka, Ivo Nezbeda

Faculty Publications

A novel perturbation approach for the structure factor S(k) of the Lennard-Jones-type Yukawa fluid with z=1.8 is presented. An approach is based on a new reference system, that is, the short-range Yukawa model with z0 > z=1.8. By choosing for the reference system the value z0=6, it is shown that (i) the proposed approach for S(k) performs much better than the traditional hard-sphere reference perturbation method does; (ii) the use of an approximate mean spherical (MSA) description of the reference structure factor provides the results for S(k) that are more accurate as those obtained from the direct MSA computations; and (iii) …

September 6, 2007, University Of North Dakota

University Senate Meeting Minutes

Minutes from the September 6, 2007, meeting of the University Senate. 23 pages

Campus Chronicle (Vol. 10, No. 4), Valparaiso University

Campus Chronicle

No abstract provided.