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2007

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Articles 3001 - 3030 of 6758

Full-Text Articles in Physical Sciences and Mathematics

Unleaded Drinking Water: Equilibrium Potential Measurements For Monochloramine Disinfectant, Brandi Clark Apr 2007

Unleaded Drinking Water: Equilibrium Potential Measurements For Monochloramine Disinfectant, Brandi Clark

Opportunities for Undergraduate Research Experience Program (OURE)

The strength of monochloramine, NH2CI, as an oxidizing agent can be linked to its effect on Pb levels in drinking water. In this study, the equilibrium potential was measured as a function of pH from pH 8 to 12 and compared to a theoretical plot of formal potentials derived from the Nemst equation. The measured equilibrium potential was consistently about 300 mV more negative than the calculated potential - NH2CI is a weaker oxidizing agent than predicted. When the measured potentials are plotted on a Pourbaix diagram, it is found that NH2CI can oxidize …

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Control Of The Electronic Management Of Information, A. Boone, R. Szatmary Jr. Apr 2007

Control Of The Electronic Management Of Information, A. Boone, R. Szatmary Jr.

Publications (YM)

This procedure establishes the responsibilities and provides direction for developing and evaluating the adequacy of process controls on specific uses of electronically stored information. These uses include, but are not limited to, information used in design input, developed as design output, or developed as input to or output from scientific investigation or performance assessment modeling and analysis. This pertains to information that resides in an electronic information management system or on electronic media.

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Improving The Usability Of Evolutionary Algorithms: Self-Adaptive Semi-Autonomous Democratic Parent Selection, Joshua M. Eads Apr 2007

Improving The Usability Of Evolutionary Algorithms: Self-Adaptive Semi-Autonomous Democratic Parent Selection, Joshua M. Eads

Opportunities for Undergraduate Research Experience Program (OURE)

One of the primary obstacles to Evolutionary Algorithms (EAs) fulfilling their promise as easy to use general-purpose problem solvers is the difficulty of correctly configuring them for specific problems such as to obtain satisfactory performance. This paper introduces the concept of democratic, semi-autonomous parent selection by encoding and evolving population rating operators as in Genetic Programming and shows the potential of extending self-adaptation by pairing mates using an adaptation of the Stable Roommates problem. Replacing the typical general parent selection algorithm with autonomously evolved individual selection parameters has the prospective to bring EAs a step closer to their promise as …

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Short Report: Fox Squirrel (Sciurus Niger) Associations With West Nile Virus, J. Jeffrey Root, Paul T. Oesterle, Heather J. Sullivan, Jeffrey S. Hall, Nicole L. Marlenee, Robert G. Mclean, John A. Montenieri, Larry Clark Apr 2007

Short Report: Fox Squirrel (Sciurus Niger) Associations With West Nile Virus, J. Jeffrey Root, Paul T. Oesterle, Heather J. Sullivan, Jeffrey S. Hall, Nicole L. Marlenee, Robert G. Mclean, John A. Montenieri, Larry Clark

United States Department of Agriculture Wildlife Services: Staff Publications

Tree squirrels (Sciurus spp.) have been recently shown to be commonly exposed to West Nile virus (WNV). Many characteristics of WNV infections in tree squirrels are unknown. To better understand WNV associations in fox squirrels (S. niger), we conducted mark-recapture sampling (N=72) and radio telemetry to study the longitudinal seroprevalence, seroconversions, and ectoparasites of these animals during 2005–2006 in northern Colorado. Five seroconversions were documented during this study. The majority of seroconversions occurred during the late summer/ fall months. However, one seroconversion was documented over the time period of February to late March 2005. Fleas …

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Event Shapes In Deep Inelastic Scattering At Hera, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, Margarita C. K. Mattingly, N. Pavel, A. G. Yagües Molina, S. Antonelli, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, M. Bindi, D. Boscherini, A. Bruni, G. Bruni, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, G. Iacobucci, A. Margotti, R. Nania, A. Polini, L. Rinaldi, G. Sartorelli Apr 2007

Event Shapes In Deep Inelastic Scattering At Hera, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, Margarita C. K. Mattingly, N. Pavel, A. G. Yagües Molina, S. Antonelli, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, M. Bindi, D. Boscherini, A. Bruni, G. Bruni, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, G. Iacobucci, A. Margotti, R. Nania, A. Polini, L. Rinaldi, G. Sartorelli

Faculty Publications

Mean values and differential distributions of event-shape variables have been studied in neutral current deep inelastic scattering using an integrated luminosity of 82.2 pb-1 collected with the ZEUS detector at HERA. The kinematic range is 80 < Q2 < 20 480 GeV2 and 0.0024 < x < 0.6, where Q2 is the virtuality of the exchanged boson and x is the Bjorken variable. The data are compared with a model based on a combination of next-to-leading-order QCD calculations with next-to-leading-logarithm corrections and the Dokshitzer-Webber non-perturbative power corrections. The power-correction method provides a reasonable description of the data for all event-shape variables studied. Nevertheless, the lack of consistency of the determination of αs and of the non-perturbative parameter of the model, over(α0, -), suggests the importance of higher-order processes that are not yet included in the model. © 2006 Elsevier B.V. All rights reserved.

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Continuous Measurement Of The Energy Eigenstates Of A Nanomechanical Resonator Without A Nondemolition Probe, Kurt Jacobs, Pavel Lougovski, Miles Blencowe Apr 2007

Continuous Measurement Of The Energy Eigenstates Of A Nanomechanical Resonator Without A Nondemolition Probe, Kurt Jacobs, Pavel Lougovski, Miles Blencowe

Dartmouth Scholarship

We show that it is possible to perform a continuous measurement that continually projects a nanoresonator into its energy eigenstates by employing a linear coupling with a two-state system. This technique makes it possible to perform a measurement that exposes the quantum nature of the resonator by coupling it to a Cooper-pair box and a superconducting transmission line resonator.

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Generalized Coherent States As Preferred States Of Open Quantum Systems, S Boixo, L Viola, G Ortiz Apr 2007

Generalized Coherent States As Preferred States Of Open Quantum Systems, S Boixo, L Viola, G Ortiz

Dartmouth Scholarship

We investigate the connection between quasi-classical (pointer) states and generalized coherent states (GCSs) within an algebraic approach to Markovian quantum systems (including bosons, spins, and fermions). We establish conditions for the GCS set to become most robust by relating the rate of purity loss to an invariant measure of uncertainty derived from quantum Fisher information. We find that, for damped bosonic modes, the stability of canonical coherent states is confirmed in a variety of scenarios, while for systems described by (compact) Lie algebras, stringent symmetry constraints must be obeyed for the GCS set to be preferred. The relationship …

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Restoration Of Rivers Used For Timber Floating: Effects On Riparian Plant Diversity, James M. Helfield, Samantha Capon, Christer Nilsson, Roland Jansson, Daniel Palm Apr 2007

Restoration Of Rivers Used For Timber Floating: Effects On Riparian Plant Diversity, James M. Helfield, Samantha Capon, Christer Nilsson, Roland Jansson, Daniel Palm

Environmental Sciences Faculty and Staff Publications

Fluvial processes such as flooding and sediment deposition play a crucial role in structuring riparian plant communities. In rivers throughout the world, these processes have been altered by channelization and other anthropogenic stresses. Yet despite increasing awareness of the need to restore natural flow regimes for the preservation of riparian biodiversity, few studies have examined the effects of river restoration on riparian ecosystems. In this study, we examined the effects of restoration in the Ume River system, northern Sweden, where tributaries were channelized to facilitate timber floating in the 19th and early 20th centuries. Restoration at these sites involved the …

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Episodic Tremor And Slip In The Pacific Northwest, Kenneth C. Creager, Timothy I. Melbourne Apr 2007

Episodic Tremor And Slip In The Pacific Northwest, Kenneth C. Creager, Timothy I. Melbourne

Geological Sciences Faculty Scholarship

Every 14 months the Pacific Northwest experiences slow slip on a fault that is the equivalent of about a magnitude 6.5 earthquake. While a typical earthquake of this magnitude happens in less than 10 seconds, the duration of these slip events is two to several weeks. The most recent event occurred from January 14 through February 1, 2007.

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A Magnetically Supported Photodissociation Region In M17, E. W. Pellegrini, J. A. Baldwin, C. L. Brogan, M. M. Hanson, N. P. Abel, Gary J. Ferland, H. B. Nemala, G. Shaw, Thomas H. Troland Apr 2007

A Magnetically Supported Photodissociation Region In M17, E. W. Pellegrini, J. A. Baldwin, C. L. Brogan, M. M. Hanson, N. P. Abel, Gary J. Ferland, H. B. Nemala, G. Shaw, Thomas H. Troland

Physics and Astronomy Faculty Publications

The southwestern (SW) part of the Galactic H II region M17 contains an obscured ionization front that is most easily seen at infrared and radio wavelengths. It is nearly edge-on, thus offering an excellent opportunity to study the way in which the gas changes from fully ionized to molecular as radiation from the ionizing stars penetrates into the gas. M17 is also one of the very few H II regions for which the magnetic field strength can be measured in the photodissociation region ( PDR) that forms the interface between the ionized and molecular gas. Here we model an observed …

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Passive Shielding In Cuore, F. Bellini, F. Alessandria, E. Andreotti, R. Ardito, T. D. Gutierrez, L Zanotti Apr 2007

Passive Shielding In Cuore, F. Bellini, F. Alessandria, E. Andreotti, R. Ardito, T. D. Gutierrez, L Zanotti

Physics

The nature of neutrino mass is one of the friontier problems of fundamental physics. Neutrinoless Double Beta Decay (0νDBD) is a powerful tool to investigate the mass hierarchy and possible extensions of the Standard Model. CUORE is a 1‐Ton next generation experiment, made of 1000 Te bolometers, aiming at reaching a background of 0.01 (possibly 0.001) counts keV−1kg−1y−1 and therefore a mass sensitivity of few tens of meV The background contribution due to environmental neutrons, muon‐induced neutrons in the shieldings and external gamma is discussed.

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Jeffress Research Grant - 2005 Apr 2007

Jeffress Research Grant - 2005

Virginia Journal of Science

Seven-page list of winners of the Jeffress Research Grant Awards for 2005.

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Jeffress Research Grant Awards - 2006 Apr 2007

Jeffress Research Grant Awards - 2006

Virginia Journal of Science

List of winners of the Jeffress Research Grant Awards for 2006.

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An Isotropic Metric, Joseph D. Rudmin Apr 2007

An Isotropic Metric, Joseph D. Rudmin

Virginia Journal of Science

An isotropic metric for a black hole and a better vacuum condition \nabla^2 V_G =0 are presented which yield distinct terms for the energy densities of ordinary matter and gravitational fields in the Einstein tensor (G^44 =-g^2 (2\nabla^2 V_G +(\nabla V_G)^2)). This model resolves an inconsistency between electromagnetism and gravity in the calculation of field energy. Resolution of this inconsistency suggests a slight modification of the Einstein equation to gG^\mu\nu = 8\pi G T^\mu\nu.

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An Assembly Language I.D.E. To Engage Students Of All Levels: Tutorial Presentation, Pete Sanderson, Kenneth Vollmar Apr 2007

An Assembly Language I.D.E. To Engage Students Of All Levels: Tutorial Presentation, Pete Sanderson, Kenneth Vollmar

Mathematics Faculty Scholarship

MIPS assembly language is widely taught in computer organization and related courses due to its elegant design and ease of learning. In this workshop, participants will explore varied uses of the MARS integrated development environment (IDE) and simulator for MIPS assembly language programming. Basic exploration is guided by a set of MIPS programming exercises to illustrate MARS use and its extensive and intuitive interactive debugging capabilities. The next level of exploration will introduce MARS "tools", applications that can interact with executing MIPS programs by observing the simulated MIPS memory and registers. Exercises will demonstrate how currently-available MARS tools can be …

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A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia. Apr 2007

A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia.

Fisheries management papers

This draft strategy was developed by the Department of Fisheries, Western Australia, hereafter known as the “Department of Fisheries” which has responsibility for managing fish resources (within Territorial waters out to 12 nautical miles) on behalf of the Commonwealth Department of Transport and Regional Services (DoTARS), through the applied Fish Resources Management Act (FRMA) (WA)(CI) (the “Applied Act”). The Applied Act provides a legislative framework that allows for management arrangements to be developed specifically for Christmas Island. The management of fisheries in Western Australia uses an adaptive approach which balances the need for the effective management of fish stocks with …

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Cs 142: Computer Programming - Ii, Eric Maston Apr 2007

Cs 142: Computer Programming - Ii, Eric Maston

Computer Science & Engineering Syllabi

This course provides a continuation to the general introduction of computer programming begun in CS 141. Examples from and applications to a broad range of problems are given. The concepts covered will be applied to the Java programming language. (Students must register for both lecture and laboratory sections.)

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Cs 141: Computer Programming - I, Michael Ondrasek Apr 2007

Cs 141: Computer Programming - I, Michael Ondrasek

Computer Science & Engineering Syllabi

This course provides a general introduction to the fundamentals of computer programming. Examples from and applications to a broad range of problems are given. No prior knowledge of programming is assumed. The concepts covered will be applied to the Java programming language. Students must register for both lecture and one laboratory section. 4 credit hours. Prerequisite: MTH 127 (College Algebra) or equivalent.

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Cs 206: Advanced Concepts/Techniques And Software Productivity Tools, John P. Herzog Apr 2007

Cs 206: Advanced Concepts/Techniques And Software Productivity Tools, John P. Herzog

Computer Science & Engineering Syllabi

By the end of this course, the students will have a greater depth of understanding in the areas of word processing, spreadsheets, databases, and presentation software and web design using Microsoft Word, Microsoft FrontPage, Microsoft Excel, Access, and PowerPoint covering the following topics.
Microsoft Excel 2003:
Tutorial 5: Working with Excel Lists
Tutorial 6: Working with Multiple Worksheets and Workbooks Tutorial 7: Working with
Excel's Editing and Web Tools Tutorial 8: Developing an Excel Application Appendix A:
Working with Logical Functions, Database Functions, and Advanced Filtering Appendix B:
Integrating Excel with Other Window Programs
Microsoft Access 2003:
Tutorial 5: Enhancing …

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Cs 208: Computer Programming For Business I, Dennis Kellermeier Apr 2007

Cs 208: Computer Programming For Business I, Dennis Kellermeier

Computer Science & Engineering Syllabi

CS 208 is the first of a two quarter sequence in programming for business students. It is required for Management Information Science majors. The courses are designed to help students achieve a high degree of facility in intermediate level programming. This course assumes students have never written a program before.

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Cs 209: Computer Programming For Business Ii, Dennis Kellermeier Apr 2007

Cs 209: Computer Programming For Business Ii, Dennis Kellermeier

Computer Science & Engineering Syllabi

CS 209 is the second of a two quarter sequence in programming for business students. It is required for Management Information Science majors. The courses are designed to help students achieve a high degree of facility in intermediate level programming.

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Cs 214: Visual Basic Programming, Michael Ondrasek Apr 2007

Cs 214: Visual Basic Programming, Michael Ondrasek

Computer Science & Engineering Syllabi

This course provides a general introduction to the fundamentals of object computer programming. Examples from and applications to a broad range of problems are given. No prior knowledge of programming is assumed. However, students should have a familiarity with programming concepts. The concepts covered will be applied in the Visual Basic programming language. 4 credit hours.

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Cs 241: Introduction To Computer Science Ii, Haiyun Bian Apr 2007

Cs 241: Introduction To Computer Science Ii, Haiyun Bian

Computer Science & Engineering Syllabi

This course is the second in the three course sequence "Introduction to Computer Science" offered by the Computer Science department, WSU. Concepts introduced in CS 240 are developed in greater detail and depth with the Java programming language. Topics include object oriented programming, basic sorting algorithms, recursion, graphics, development of user interfaces and exception handling. Student must register for one lecture section and one lab section.

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Cs 242: Computer Programming Iii, Mateen M. Rizki Apr 2007

Cs 242: Computer Programming Iii, Mateen M. Rizki

Computer Science & Engineering Syllabi

No abstract provided.

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Cs 415: Social Implications Of Computing, Leo Finkelstein Apr 2007

Cs 415: Social Implications Of Computing, Leo Finkelstein

Computer Science & Engineering Syllabi

CS 415 is a communication skills course using as its subject matter current salient issues associated with the social implications of computing. In addition to the course text, you will need to use certain reading materials in the library and elsewhere, and you will be responsible for using concepts and theories provided in class lectures and discussions.

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Cs 470/670: System Simulation, Mateen M. Rizki Apr 2007

Cs 470/670: System Simulation, Mateen M. Rizki

Computer Science & Engineering Syllabi

No abstract provided.

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Cs 701: Database Systems And Design I, Guozhu Dong Apr 2007

Cs 701: Database Systems And Design I, Guozhu Dong

Computer Science & Engineering Syllabi

An introduction to database design, database system implementation issues and techniques, and advanced data models.

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Cs 790-03: Information Integration & Analysis, Amit P. Sheth Apr 2007

Cs 790-03: Information Integration & Analysis, Amit P. Sheth

Computer Science & Engineering Syllabi

This course deals with the integration and analysis of heterogeneous data-a topic of significant research as well as practical importance. A typical large organization spends around 30% of all its IT effort and expense for data/information integration. Furthermore, organizations can greatly increase their competitiveness by exploiting the data they collect, and discovering trends and patterns leading to insights. Hugh repositories of public data on the Web also provide opportunity to discovery undiscovered public knowledge.

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Cs 801: Advanced Database Systems, Soon M. Chung Apr 2007

Cs 801: Advanced Database Systems, Soon M. Chung

Computer Science & Engineering Syllabi

No abstract provided.

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Cs 840: Advanced Topics In The Theory Of Computation, Thomas Sudkamp Apr 2007

Cs 840: Advanced Topics In The Theory Of Computation, Thomas Sudkamp

Computer Science & Engineering Syllabi

No abstract provided.

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