Digital Commons Network^™

Characterization Of Web Server Workload, Amit Sangle

Graduate Theses, Dissertations, and Problem Reports (ETD)

Realistic and formal mathematical description of web-server workload forms a fundamental step in the design of synthetic workload generators, capacity planning and accurate predictions of performance measures. In this thesis we perform detailed empirical analysis of the web workload by analyzing access logs of nine web-servers. Unlike most previous work that focused on request-based workload characterization, we analyze both request and session characteristics. We perform rigorous statistical analysis to determine the self-similarity of web traffic and heavy-tailedness of the distribution of different session parameters. Our analysis shows that web traffic is self-similar and the degree of self-similarity is proportional to …

Software Tools For Real-Time Simulation And Control, Raghu Sankarayogi

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this thesis is to design and simulate a multi-agent based energy management system for a shipboard power system in hard real-time environment. The automatic reconfiguration of shipboard power systems is essential to improve survivability. Multi-agent technology is used in designing the reconfigurable energy management system using a self-stabilizing maximum flow algorithm. The agent based energy management system is designed in a Matlab/Simulink environment. Reconfiguration is performed for several situations including start-up, loss of an agent, limited available power, and distribution to priority ranked loads. The number of steps taken to reach the global solution and the time …

Investigation Of Internal Fluid Pressure In Cells, Jayendran Srinivasan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Articular cartilage is a connective tissue that covers the ends of bones in joints, providing a nearly frictionless bearing surface for efficiently transmitting loads to the underlying joint. It is made up of specialized cells called chondrocytes that are responsible for its growth and maintenance. Studies indicate that cells remodel the tissue in response to mechanical loading. However the mechanism by which cells sense and respond to mechanical signals is poorly understood.;Studies also suggest the presence of internal fluid pressure in cells and change in this fluid pressure is believed to play a role in cellular mechanical signal transduction. This …

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.

Relational Aggression In Adolescent Girls: Developing Self-Esteem For The Target Girl, Lisa Suzanne Gulch

Masters Theses

Relational aggression (RA) is rampant in our schools, especially in middle schools across America. The name-calling, rumors, exclusion, eye-rolling, and whispers work to undermine relationships between and amongst girls. Because RA is covert in nature, the behavior goes mostly unnoticed by the adults in these girl’s lives. Society conditions girls, from a very young age, to respond to aggressive behaviors by not being aggressive back; girls are supposed to be nice. The target of relational aggression is especially hurt by this behavior. She generally suffers from low self esteem and poor social skills, and when put up against a clique, …

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

Inside UNLV

No abstract provided.

Coupled Oceanic-Atmospheric Variability And U.S. Streamflow, Glenn A. Tootle, Thomas C. Piechota, Ashok Singh

Civil and Environmental Engineering and Construction Faculty Research

A study of the influence of interdecadal, decadal, and interannual oceanic-atmospheric influences on streamflow in the United States is presented. Unimpaired streamflow was identified for 639 stations in the United States for the period 1951–2002. The phases (cold/negative or warm/positive) of Pacific Ocean (El Niño–Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO)) and Atlantic Ocean (Atlantic Multidecadal Oscillation (AMO) and North Atlantic Oscillation (NAO)) oceanic-atmospheric influences were identified for the year prior to the streamflow year (i.e., long lead time). Statistical significance testing of streamflow, based on the interdecadal, decadal, and interannual oceanic-atmospheric phase (warm/positive or cold/negative), was performed by …

Cd4+ Cell Count, Viral Load, And Highly Active Antiretroviral Therapy Use Are Independent Predictors Of Body Composition Alterations In Hiv-Infected Adults: A Longitudinal Study, Ann Y. Mcdermott, Norma Terrin, Christine Wanke, Sally Skinner, Eric Tchetgen, Abby H. Shevitz

Kinesiology and Public Health

To understand the concurrent effects of human immunodeficiency virus (HIV) infection, the immune system, and antiretroviral therapy on body composition alterations, we examined annualized composition changes in HIV-infected adults who were receiving stable antiretroviral therapy.

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 …

Caregivers’ Perceptions Of Accessibility And Quality Of Services In The Community For Children With Mental Health Diagnoses: A Pilot Survey, Karin E. Brems

Masters Theses

This pilot study was intended to explore caregivers' perceptions of the mental health services available in the community for children with mental health diagnoses. A study-specific survey was developed to look at demographic characteristics, service accessibility, and service quality. This survey was distributed to caregivers through Michigan support groups. Returned surveys were analyzed for themes that could assist in the development of further research to improve community services for children with mental health diagnoses.

This pilot study yielded rich qualitative data. Upon review and analysis, five themes emerged: (1) bureaucratic hassles and getting the runaround, (2) closed doors, (3) support …

The Nasa Glenn Research Center: An Economic Impact Study Fiscal Year 2004, Robert Sadowski

All Maxine Goodman Levin School of Urban Affairs Publications

The John H. Glenn Research Center at Lewis Field (Glenn) is one of 10 National Aeronautics and Space Administration (NASA) Centers. Glenn is situated on 350 acres adjacent to Cleveland Hopkins International Airport. Its physical plant includes over 150 buildings that contain a unique collection of world-class test facilities. Glenn also includes the 6,400-acre Plum Brook Station near Sandusky, Ohio, 50 miles west of Cleveland. It specializes in large-scale tests that would be hazardous within the confines of the main campus.

Transforming Our Regional Economy, Ziona Austrian, Ed Morrison, Laszio Kozmon

All Maxine Goodman Levin School of Urban Affairs Publications

This strategic action plan focuses on the future of Cuyahoga County and sets forth a roadmap to build a more prosperous economy. It is not the only road map available to us, and we can certainly improve upon it. But, it is a roadmap that is practical, one that we can begin using today. We have set out initiatives that can and should be implemented.

Checkup, Lehigh Valley Health Network

Checkup

No abstract provided.

Towards Scalable Linear-Optical Quantum Computers, J. P. Dowling, J. D. Franson, H. Lee, G. J. Milburn

Faculty Publications

Scalable quantum computation with linear optics was considered to be impossible due to the lack of efficient two-qubit logic gates, despite the ease of implementation of one-qubit gates. Two-qubit gates necessarily need a non-linear interaction between the two photons, and the efficiency of this non-linear interaction is typically very small in bulk materials. However, it has recently been shown that this barrier can be circumvented with effective non-linearities produced by projective measurements, and with this work linear-optical quantum computing becomes a new avenue towards scalable quantum computation. We review several issues concerning the principles and requirements of this scheme. © …

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 …

Caster - A Concept For A Black Hole Finder Probe Based On The Use Of New Scintillator Technologies, Mark L. Mcconnell, Peter F. Bloser, Gary Case, Michael Cherry, James Cravens, T. Gregory Guzik, Kevin Hurley, R. Marc Kippen, John Macri, Richard S. Miller, William Paciesas, James M. Ryan, Bradley Schaefer, J. Gregory Stacy, W. Thomas Vestrand, John P. Wefel

Faculty Publications

The primary scientific mission of the Black Hole Finder Probe (BHFP), part of the NASA Beyond Einstein program, is to survey the local Universe for black holes over a wide range of mass and accretion rate. One approach to such a survey is a hard X-ray coded-aperture imaging mission operating in the 10-600 keV energy band, a spectral range that is considered to be especially useful in the detection of black hole sources. The development of new inorganic scintillator materials provides improved performance (for example, with regards to energy resolution and timing) that is well suited to the BHFP science …

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.

The Pacifican December 1, 2005, University Of The Pacific

All Issues - Student Newspaper, The Pacifican, Pacific Weekly

No abstract provided.

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

Marian Library Newsletter

No abstract provided.

Child's Play: Avoiding The Pitfalls Of Crawford V. Washington In Child Abuse Prosecution, Matthew M. Staab

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 Challenges The Theological World, David Paulsen

BYU Studies

In his illuminating book The Story of Christian Theology, Roger Olson states:

Christian theology does not begin at the beginning. That is, Christian theology began well after Jesus Christ walked the earth with his disciples and even after the last disciple and apostle died. . . . The apostles [had] tremendous prestige and authority. . . . While they were alive, there was no need for theology in the same sense as afterward. Theology was born as the heirs of the apostles began to reflect on Jesus’ and the apostles’ teachings to . . . settle controversies about Christian …

Joseph Smith's Theological Challenges: From Revelation And Authority To Metaphysics, Richard J. Mouw

BYU Studies

In his published dialogue with the Evangelical theologian Craig Blomberg, Stephen Robinson observed that one of the factors that makes it so difficult for Mormons and Evangelicals to understand each other is the issue of terminology. The theology of the Latter-day Saints, he noted, has not been shaped by the same developments that Protestants have experienced since the days of the Reformation. This means, Robinson said, that “Latter-day Saints are generally quite naïve when it comes to the technical usage of theological language.”

Comparison Of Glomalin And Humic Acid In Eight Native U.S. Soils, K. A. Nichols, S. F. Wright

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Two important extractable fractions of soil organic matter (SOM) are humic acid (HA) and glomalin-related soil protein (glomalin). Optimizing the purity of each fraction is necessary to correlate fraction quantity and molecular characteristics with soil quality. Manipulation of extraction sequence and controlled precipitation of HA were used to evaluate co-extraction of HA and glomalin. Eight bulk soil samples (0 to 10 cm depth) were collected from four U.S. states (Colorado, Nebraska, Maryland, and Georgia). In Experiment 1, glomalin extraction (50 mM citrate, pH 8.0, at 121 'C) was followed by HA extraction (0.1 N NaOH at room temperature), and Experiment …

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.