Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2003

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 271 - 300 of 8167

Full-Text Articles in Entire DC Network

Decoherence At Zero Temperature, G. W. Ford, R. F. O'Connell Dec 2003

Decoherence At Zero Temperature, G. W. Ford, R. F. O'Connell

Faculty Publications

Most discussions of decoherence in the literature consider the high temperature regime but it is also known that, in the presence of dissipation, decoherence can occur even at zero temperature. Whereas most previous investigations all assumed initial decoupling of the quantum system and bath, we consider that the system and environment are entangled at all times. Here, we discuss decoherence for a free particle in an initial Schrödinger cat state. Memory effects are incorporated by use of the single relaxation time model.


Geophysical Characterization Of A Former Refinery Site, Kalamazoo, Michigan, Baraka Damas Kinabo Dec 2003

Geophysical Characterization Of A Former Refinery Site, Kalamazoo, Michigan, Baraka Damas Kinabo

Masters Theses

Lakeside, a former refinery site, in Kalamazoo, Michigan, is contaminated with hydrocarbon products. The contamination resulted from the refining and storage activities that took place at the site for over 50 years. The contamination is scattered in isolated pockets.

In an attempt to better define the contamination zones and therefore assist the remediation efforts, this study uses shallow geophysical methods including Electromagnetic induction using the EM 31 system, Magnetic, Ground Penetrating Radar (GPR), and Resistivity methods. The hand auger was used to further characterize some EM 31 anomalies. The EM 31 conductivity results show elevated values resulting from the biodegradation …


In Re Exxon Valdez: Application Of Due Process Constraints On Punitive Damages Awards, Joseph J. Chambers Dec 2003

In Re Exxon Valdez: Application Of Due Process Constraints On Punitive Damages Awards, Joseph J. Chambers

Alaska Law Review

No abstract provided.


Optimization And Feedback Control Of Constrained Parabolic Systems Under Uncertain Perturbations, Boris S. Mordukhovich, Ilya Shvartsman Dec 2003

Optimization And Feedback Control Of Constrained Parabolic Systems Under Uncertain Perturbations, Boris S. Mordukhovich, Ilya Shvartsman

Mathematics Research Reports

This paper concerns a minimax control design problem for a class of parabolic systems with nonregular boundary conditions and uncertain distributed perturbations under pointwise control and state constraints. We deal with boundary controllers acting through Dirichlet boundary conditions that are the most challenging for the parabolic dynamics.


Viewer-Based Directional Querying For Mobile Applications, Keith Gardiner, James Carswell Dec 2003

Viewer-Based Directional Querying For Mobile Applications, Keith Gardiner, James Carswell

Conference papers

With the steady and fast advancements in the integration of geographic information systems and mobile location-based services, interest in exploiting this technology for Cultural Heritage (CH) data sharing has become apparent. In this area there has been an increasing need to integrate positional information with non-positional data and add a spatial dimension to the definition of a users “context”. In this paper we describe an implementation of a viewer-based directional query processor that operates on an Oracle Spatial database. The spatial position and orientation are taken from the viewer’s perspective. Using this frame of reference a view-port is defined in …


Multi-Phase Homework Assignments In Cs I And Cs Ii, James Huggins Dec 2003

Multi-Phase Homework Assignments In Cs I And Cs Ii, James Huggins

Computer Science Presentations And Conference Materials

ll of the panelists have used small sets of related programming assignments in introductory CS courses. These assignments are essentially larger programs which are developed during several separate phases. This approach has several advantages: • Students are able to develop more realistic and interesting programs. • Students are motivated to write better code as well as documentation. Those who don't are quickly confronted by the implications. • Student interest in completing the projects is better sustained, since there is continuity from one project to the next. • It models desirable techniques such as iterative development and encapsulation. • It demonstrates …


Galaxies At Z = 3 Around Damped Ly-Α Clouds, N. Bouché, James D. Lowenthal Dec 2003

Galaxies At Z = 3 Around Damped Ly-Α Clouds, N. Bouché, James D. Lowenthal

Astronomy: Faculty Publications

We are exploring the connection between Damped Ly-α Absorption systems and Lyman Break Galaxies using deep m (5σ)=26 m - broad band imaging (UBVI) of four wide fields (0.25deg each) obtained at the Kitt Peak 4-m telescope with MOSAIC. Each field contains a DLA at z ∼ 3. We want to address the nature of DLA at high-redshifts: (1) Are the DLAs embedded in much larger systems of galaxies? (2) How does the spatial distribution of emitters in 3D (space and redshift) correlate with the absorber? Contrary to most previous DLA studies, we are not looking for the absorber, and …


Manual, University Of South Florida St. Petersburg Student Disability Services: A Guide To Resources And Access For Students With Disabilities, December 2003, University Of South Florida St. Petersburg Dec 2003

Manual, University Of South Florida St. Petersburg Student Disability Services: A Guide To Resources And Access For Students With Disabilities, December 2003, University Of South Florida St. Petersburg

SACS Historical Forms and Applications

A manual from the University of South Florida St. Petersburg about resources for students with disabilities.


Everyone A Learner, Everyone A Teacher: Report From The Transition To University Task Force, Rita Kean Dec 2003

Everyone A Learner, Everyone A Teacher: Report From The Transition To University Task Force, Rita Kean

University of Nebraska-Lincoln Administration: Reports, Papers, Publications, and Presentations

I. Transition to University Task Force: Purpose and Mission

The Transition to University Task Force was appointed in May 2003 by Senior Vice Chancellor for Academic Affairs Richard Edwards to review and assess the effectiveness of first-year undergraduate orientation programs and courses. This review was to result in a proposed framework or plan for coordinating and supporting these separate programs.

As a foundation for its deliberations the Task Force was instructed to review several recent reports that address the present and future state of the university. These included: A 2020 Vision, the First Year Learning Task Force Report (1999), the …


Laboratory Testing Of Select Geotextiles As Biointrusion Barriers And Sediment Filters, David R. Beck Dec 2003

Laboratory Testing Of Select Geotextiles As Biointrusion Barriers And Sediment Filters, David R. Beck

Masters Theses

It has been proposed that placing a geotextile over sediments with adsorbed contaminants can prevent bioaccumulation of the contaminants in larger animals by isolating the benthic organisms living within these sediments from fish. In conjunction with a field study carried out at Gull Creek, a laboratory study testing two geotextiles as biointrusion barriers and sediment filters was conducted.

Constant-head permeameters were run for seven days using cores from the field study area with a geotextile placed over the cores. For biointrusion barrier tests, medium sand was placed over the geotextile and spiked with nutrients. Following each trial, benthic organisms in …


From Biology To Consciousness To Morality, Ursula Goodenough, Terrence W. Deacon Dec 2003

From Biology To Consciousness To Morality, Ursula Goodenough, Terrence W. Deacon

Biology Faculty Research

Social animals are provisioned with prosocial orientations that operate to transcend self-interest. Morality, as used here, describes human versions of such orientations. We explore the evolutionary antecedents of morality in the context of emergentism, giving considerable attention to the biological traits that undergird awareness and our emergent human forms of mind. We suggest that our moral frames of mind emerge from our primate prosocial capacities, transfigured and valenced by our symbolic languages, cultures, and religions.

Portions of this article were given by Deacon in a paper at the forty-ninth annual conference of IRAS, “Is Nature Enough? The Thirst for …


Comparing Math Self-Efficacy In Middle School Girls, Anagloria Rodriguez Dec 2003

Comparing Math Self-Efficacy In Middle School Girls, Anagloria Rodriguez

Graduate Theses, Dissertations, and Problem Reports (ETD)

There have been no previous studies in the self-efficacy or single-sex schools literature that have looked at the possible relationship between self-efficacy expectations and type of school. This study compared mathematics self-efficacy of sixth, seventh, and eighth grade girls in a single-sex and a co-educational school. Four measures, including a personal background questionnaire, were used to collect data. Results showed a correlation for type of school and importance of mathematics. Contrary to assumptions made by the researcher, girls in the co-educational school scored consistently higher on all measures used. The results of this research suggest that it will take more …


Evaluation Of 4.75 Mm Superpave Mix Criteria For West Virginia, David Diazgranados Diaz Dec 2003

Evaluation Of 4.75 Mm Superpave Mix Criteria For West Virginia, David Diazgranados Diaz

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research was to evaluate design parameters for 4.75 mm nominal maximum aggregate size mixes, NMAS, in West Virginia. This research was divided in two phases. During Phase I, evaluation of Superpave criteria for 4.75 mm LAMAS mixes, a variety of 4.75 mm NMAS limestone mixes were developed following Superpave methodology for low traffic volume. In Phase II, natural sand evaluation for 4.75 mm mixes; three approved Marshall designs were obtained from the WVDOT. Two of the mixes contained natural sand and the other was a 100 percent limestone mix. The Marshall mix designs were verified and …


Hybrid Neural Networks Models For A Membrane Reactor, Mohammed Al-Yemni Dec 2003

Hybrid Neural Networks Models For A Membrane Reactor, Mohammed Al-Yemni

Graduate Theses, Dissertations, and Problem Reports (ETD)

Artificial neural networks (ANN) have become an established discipline and have gained extensive interest within chemical engineering. In recent years, research effort has focused on the use of "hybrid artificial neural networks" (HANN) models that combine both the deterministic and the ANN elements. Several methods have been proposed for combining ANN with first principle relations. In this thesis, a new hybrid scheme, which is similar to that developed by Kasprow for a space-independent and time-dependent fed-batch microbial reactor, was developed for a space-dependent steady-state enzymatic reactor. This scheme combines ANN with mass balances and assumed rate expressions. It was shown …


Years Of Teaching Experience And Descriptions Of Educational Situations, Dana J. Stapleford Dec 2003

Years Of Teaching Experience And Descriptions Of Educational Situations, Dana J. Stapleford

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the relationship between years of teaching experience and the type of descriptions given of educational situations. Participants were certified teachers with 1 to 27 years of teaching experience and preservice teachers with 0 years of teaching experience. A coding system was developed as an objective method for extracting participants' descriptions of actions and consequences pertaining to student and teacher behavior. Results did not support the original hypothesis that a relationship would be found between years of teaching experience and the descriptions made. However, several other relationships among certain characteristics of the descriptions were found.;The typical description made …


Are American Schools Facing A Shortage Of Qualified Administrators?, Gregory Hine Dec 2003

Are American Schools Facing A Shortage Of Qualified Administrators?, Gregory Hine

Journal of Catholic Education

Anecdotal evidence abounds regarding the shortage of principals to lead schools. Sustained attention to the research on recruitment and retention of principals reveals a fascinating development: Ample numbers of teachers have completed administrative licensure requirements and hold the credentials necessary to assume a principalship; however, few wish to apply for the position.


Effect Of Heavy Metals On Bacteria, Elena Vratonjic Dec 2003

Effect Of Heavy Metals On Bacteria, Elena Vratonjic

Theses and Dissertations

Heavy metals have become devastating environmental contaminants due to their widespread use in the manufacture of electronics, plastics, batteries and dyes. The discharge of heavy metals into the environment has caused concern about their effects on the ecosystem. Many metals are essential for growth in small amounts. However, at higher concentrations heavy metals are toxic because they bind to organic compounds. This accounts for their effects on some important parts of the cell structure, like their ability to denature protein molecules. The initial objective of this study was to find out the growth rate of E.coli and M.roseus in the …


Dynamic Modeling Of Compliant Constant-Force Compression Mechanisms, Cameron Boyle, Larry L. Howell, Spencer P. Magleby, Mark S. Evans Dec 2003

Dynamic Modeling Of Compliant Constant-Force Compression Mechanisms, Cameron Boyle, Larry L. Howell, Spencer P. Magleby, Mark S. Evans

Faculty Publications

A mathematical dynamic model is derived for compliant, constant-force compression-mechanisms, based on the pseudo-rigid-body model simplification of the device. The compliant constant-force compression mechanism (CFCM) is a slider mechanism incorporating large-deflection beams, which outputs near-constant-force across the range of its designed deflection. The equation of motion is successfully calibrated with empirical data from five separate mechanisms, comprising two basic configurations of CFCMs. The dynamic equation is derived from a generalized pseudo-rigid-body model. This allows every configuration to be represented by the same model, so a separate treatment is not required for each configuration. An unexpected dynamic trait of the constant-force …


Charge Transfer In Slow Collisions Of C⁴⁺ With H Below 1 Kev/Amu, Chen-Nan Liu, Anh-Thu Le, C. D. Lin Dec 2003

Charge Transfer In Slow Collisions Of C⁴⁺ With H Below 1 Kev/Amu, Chen-Nan Liu, Anh-Thu Le, C. D. Lin

Physics Faculty Research & Creative Works

We reexamined charge-transfer cross sections for C⁴⁺ + H collisions for energies from 1 meV/amu to 1 keV/amu using the recently developed hyperspherical close-coupling method. Our results agree with several previous theoretical calculations using molecular-orbital expansion. However, these converged theoretical predictions do not agree with total cross sections from the merged-beam experiments.


Using Spreadsheets In Geoscience Education: Survey And Annotated Bibliography Of Articles In The Journal Of Geoscience Education Through 2003, Beth Fratesi, H. L. Vacher Dec 2003

Using Spreadsheets In Geoscience Education: Survey And Annotated Bibliography Of Articles In The Journal Of Geoscience Education Through 2003, Beth Fratesi, H. L. Vacher

School of Geosciences Faculty and Staff Publications

Thirty-eight papers published in the Journal of Geoscience Education ( JGE) from 1989 through 2003 explicitly use or recommend the use of spreadsheets as part of classroom or field exercises, projects, or entire courses. Many of the papers include the spreadsheets, and some include the equations. The papers demonstrate how spreadsheets allow students to explore a subject through problem-oriented, interactive, and quantitative exercises. We provide an annotated bibliography and classify the 38 JGE papers by spreadsheet use, mathematics skill area, and geologic subdiscipline. Our discussion of five selected articles — abundance of elements in the Earth’s crust; directional properties of …


Divorcing Power And Reason: Spinoza And The Founding Of Modern Law, Benoit Frydman Dec 2003

Divorcing Power And Reason: Spinoza And The Founding Of Modern Law, Benoit Frydman

Cardozo Law Review

No abstract provided.


Lamb Shift Of Laser-Dressed Atomic States, Ulrich D. Jentschura, Jorg Evers, Martin K. Haas, Christoph H. Keitel Dec 2003

Lamb Shift Of Laser-Dressed Atomic States, Ulrich D. Jentschura, Jorg Evers, Martin K. Haas, Christoph H. Keitel

Physics Faculty Research & Creative Works

We discuss radiative corrections to an atomic two-level system subject to an intense driving laser field. It is shown that the Lamb shift of the laser-dressed states, which are the natural state basis of the combined atom-laser system, cannot be explained in terms of the Lamb shift received by the atomic bare states which is usually observed in spectroscopic experiments. In the final part, we propose an experimental scheme to measure these corrections based on the incoherent resonance fluorescence spectrum of the driven atom.


Development And Optimization Of Hplc-Icpms For The Determination Of Iodine Speciation In Groundwater, Yun Qiu Dec 2003

Development And Optimization Of Hplc-Icpms For The Determination Of Iodine Speciation In Groundwater, Yun Qiu

All-Inclusive List of Electronic Theses and Dissertations

High performance liquid chromatography has been coupled with online inductively coupled plasma mass spectrometry detection for the determination of iodine speciation in drinking and groundwaters. Using ion exchange chromatography, the method is applied to quantify the concentrations of iodine species in groundwaters. The HPLC-UV detection was used first to examine the separation efficiency of the HPLC method. The limit of quantification was obtained for the HPLC-UV analysis. Direct ICPMS analysis of iodine species has been validated and optimized using an HC03"/C03 2 - aqueous solvent. HPLC was then interfaced to the ICPMS T-shape connection to allow online addition of internal …


Table Of Contents, Vol. 22, No. 2, December 2003 Dec 2003

Table Of Contents, Vol. 22, No. 2, December 2003

Bridgewater Review

No abstract provided.


Bridgewater Review, Vol. 22, No. 2, December 2003 Dec 2003

Bridgewater Review, Vol. 22, No. 2, December 2003

Bridgewater Review

No abstract provided.


Expert Evidence In Flatland: The Geometry Of A World Without Scientific Culture, David L. Faigman Dec 2003

Expert Evidence In Flatland: The Geometry Of A World Without Scientific Culture, David L. Faigman

Seton Hall Law Review

No abstract provided.


Expert Information And Expert Evidence: A Preliminary Taxonomy, Samuel R. Gross, Jennifer L. Mnookin Dec 2003

Expert Information And Expert Evidence: A Preliminary Taxonomy, Samuel R. Gross, Jennifer L. Mnookin

Seton Hall Law Review

No abstract provided.


Paper For An Educational Digital Library, Dion Hoe-Lian Goh, Yin-Leng Theng, Ming Yin, Ee Peng Lim Dec 2003

Paper For An Educational Digital Library, Dion Hoe-Lian Goh, Yin-Leng Theng, Ming Yin, Ee Peng Lim

Research Collection School Of Computing and Information Systems

GeogDL is a digital library of geography examination resources designed to assist students in revising for a national geography examination in Singapore. As part of an iterative design process, we carried out participatory design and brainstorming with student and teacher design partners. The first study involved prospective student design partners. In response to the first study, we describe in this paper an implementation of PAPER – Personalised Adaptive Pathways for Exam Resources – a new bundle of personalized, interactive services containing a mock exam and a personal coach. The mock exam provides a simulation of the actual geography examination while …


Determination Of Spatial Strata For Environmental Regulatory Purposes, John Edward Daniels Dec 2003

Determination Of Spatial Strata For Environmental Regulatory Purposes, John Edward Daniels

Dissertations

This dissertation introduces spatial strata modelling, a methodology that combines spatial statistics, cluster analysis, and geographic information system theories to analyze the background level of naturally occurring contaminants of concern (COCs). The objective of spatial strata modelling is to divide a geographic area of interest into mutually exclusive geographic zones (spatial strata): with each stratum representing a different level of COC concentration. An estimate of each stratum's COC concentration level, representing an upper regulatory limit, will also be provided. Data provided by the Michigan Department of Environmental Quality describing the spatial location and arsenic concentrations of 211 Michigan sites (arsenic …


Return To The Wild, John C. Jahoda Dec 2003

Return To The Wild, John C. Jahoda

Bridgewater Review

No abstract provided.