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2005

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Sympathetic Cooling Route To Bose-Einstein Condensate And Fermi-Liquid Mixtures, Robin Côté, Roberto Onofrio, Eddy Timmermans Oct 2005

Sympathetic Cooling Route To Bose-Einstein Condensate And Fermi-Liquid Mixtures, Robin Côté, Roberto Onofrio, Eddy Timmermans

Dartmouth Scholarship

We discuss a sympathetic cooling strategy that can successfully mitigate fermion-hole heating in a dilute atomic Fermi-Bose mixture and access the temperature regime in which the fermions behave as a Fermi liquid. We introduce an energy-based formalism to describe the temperature dynamics with which we study a specific and promising mixture, composed of 6Li and 87Rb. Analyzing the harmonically trapped mixture, we find that the favorable features of this mixture are further enhanced by using different trapping frequencies for the two species.

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The Concurrent Development Scheduling Problem (Cdsp), Leroy W. Paul Oct 2005

The Concurrent Development Scheduling Problem (Cdsp), Leroy W. Paul

USF Tampa Graduate Theses and Dissertations

The concurrent development (CD) project is defined as the concurrent development of both hardware and software that is integrated together later for a deliverable product. The CD Scheduling Problem (CDSP) is defined as most CD baseline project schedules being developed today are overly optimistic. That is, they finish late. This study researches those techniques being used today to produce CD project schedules and looks for ways to close the gap between the baseline project schedule and reality. In Chapter 1, the CDSP is introduced. In Chapter 2, a review is made of published works. A review is also made of …

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Exponent, Vol. 37, No. 8, 2005-10-26, University Of Alabama In Huntsville Oct 2005

Exponent, Vol. 37, No. 8, 2005-10-26, University Of Alabama In Huntsville

2005

This newspaper contains an advertisement for Pontiac. It was held to the newspaper with two metal staples that have been removed.

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Using Genetic Algorithms To Map First-Principles Results To Model Hamiltonians: Application To The Generalized Ising Model For Alloys, Gus L. W. Hart, Volker Blum, Michael J. Walorski, Alex Zunger Oct 2005

Using Genetic Algorithms To Map First-Principles Results To Model Hamiltonians: Application To The Generalized Ising Model For Alloys, Gus L. W. Hart, Volker Blum, Michael J. Walorski, Alex Zunger

Faculty Publications

The cluster expansion method provides a standard framework to map first-principles generated energies for a few selected configurations of a binary alloy onto a finite set of pair and many-body interactions between the alloyed elements. These interactions describe the energetics of all possible configurations of the same alloy, which can hence be readily used to identify ground state structures and, through statistical mechanics solutions, find finite-temperature properties. In practice, the biggest challenge is to identify the types of interactions which are most important for a given alloy out of the many possibilities. We describe a genetic algorithm which automates this …

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Minutes Of Graduate College Curriculum Committee, October 26, 2005, University Of Northern Iowa. Graduate College Curriculum Committee. Oct 2005

Minutes Of Graduate College Curriculum Committee, October 26, 2005, University Of Northern Iowa. Graduate College Curriculum Committee.

Minutes - Graduate Curriculum Committee

Minutes of the committee that oversees the development of the curriculum of the University of Northern Iowa Graduate College.

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Three-Dimensional Digital Image Processing And Reconstruction Of Granular Particles, Jorge A. Rivas Oct 2005

Three-Dimensional Digital Image Processing And Reconstruction Of Granular Particles, Jorge A. Rivas

USF Tampa Graduate Theses and Dissertations

This thesis presents a method for digitization of the two-dimensional shape of granular particles by means of photo microscopy and image processing techniques implemented using a software package from Media Cybernetics, Inc: Image-Pro Plus 5.1 and the add-ins Scope-Pro 5.0, SharpStack 5.0 and 3D Constructor 5.0. With the use of these tools, it was possible to implement an efficient semi-automated routine that allows the digitization of large numbers of two-dimensional silhouettes of particles in minimum time, without endangering the quality and reliability of the shapes obtained. Different sample preparation techniques, illumination systems, deconvolution algorithms, mathematical functions, filtering techniques and programming …

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The Bates Student - Volume 135 Number 06 - October 25, 2005, Bates College Oct 2005

The Bates Student - Volume 135 Number 06 - October 25, 2005, Bates College

The Bates Student

No abstract provided.

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Aggregation Behavior And Chromonic Liquid Crystal Properties Of An Anionic Monoazo Dye, Viva R. Horowitz , '05, L. A. Janowitz, Aaron L. Modic , '04, P. A. Heiney, Peter J. Collings Oct 2005

Aggregation Behavior And Chromonic Liquid Crystal Properties Of An Anionic Monoazo Dye, Viva R. Horowitz , '05, L. A. Janowitz, Aaron L. Modic , '04, P. A. Heiney, Peter J. Collings

Physics & Astronomy Faculty Works

X-ray scattering and various optical techniques are utilized to study the aggregation process and chromonic liquid crystal phase of the anionic monoazo dye Sunset Yellow FCF. The x-ray results demonstrate that aggregation involves pi-pi stacking of the molecules into columns, with the columns undergoing a phase transition to an orientationally ordered chromonic liquid crystal phase at high dye concentration. Optical absorption measurements on dilute solutions reveal that the aggregation takes place at all concentrations, with the average aggregation number increasing with concentration. A simple theory based on the law of mass action and an isodesmic aggregation process is in excellent …

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Roadmap For High Efficiency Solid-State Neutron Detectors, R. J. Nikolic, Chin Li Cheung, C. E. Reinhardt, T. F. Wang Oct 2005

Roadmap For High Efficiency Solid-State Neutron Detectors, R. J. Nikolic, Chin Li Cheung, C. E. Reinhardt, T. F. Wang

Barry Chin Li Cheung Publications

Solid-state thermal neutron detectors are generally fabricated in a planar configuration by coating a layer of neutron-to-alpha converter material onto a semiconductor. The as-created alpha particles in the material are expected to impinge the semiconductor and create electron-hole pairs which provide the electrical signal. These devices are limited in efficiency to a range near (2-5%)/cm2 due to the conflicting thickness requirements of the converter layer. In this case, the layer is required to be thick enough to capture the incoming neutron flux while at the same time adequately thin to allow the alpha particles to reach the semiconductor. A …

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Assimilation And Differences Between The Settlement Patterns Of Individual Immigrants And Immigrant Households, Mark Ellis, Richard Wright Oct 2005

Assimilation And Differences Between The Settlement Patterns Of Individual Immigrants And Immigrant Households, Mark Ellis, Richard Wright

Dartmouth Scholarship

Analyses of immigrant settlement patterns typically rely on counts of foreign-born individuals by neighborhood, metropolitan area, state, or region. As an alternative, this study classifies immigrants and their descendents into household types to shift attention from individuals to relationships between individuals. The study uses pooled current population survey data to identify seven household types, six of which have various degrees of immigrant or second-generation presence. The research compares distributions of first- and second-generation immigrants with different types of households that include first- and second-generation immigrants. Our analysis shows that the geography of immigration based on households differs considerably from geographies …

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Examining The Attitudes Toward Mathematics Of Preservice Elementary School Teachers Enrolled In An Introductory Mathematics Methods Course And The Experiences That Have Influenced The Development Of These Attitudes, Joy Bronston Schackow Oct 2005

Examining The Attitudes Toward Mathematics Of Preservice Elementary School Teachers Enrolled In An Introductory Mathematics Methods Course And The Experiences That Have Influenced The Development Of These Attitudes, Joy Bronston Schackow

USF Tampa Graduate Theses and Dissertations

The reform movement in mathematics education has recognized affective factors as an important area where change is needed. This study examined the attitudes toward mathematics of preservice elementary teachers entering an introductory mathematics methods course. The methods course utilized constructivist instructional methods, such as the use of manipulatives, cooperative group work, problem solving, and calculators. Qualitative methods were used to explore participants attitudes toward mathematics and the experiences that have led to the development of these attitudes. The study sought to determine the extent to which preservice teachers attitudes toward mathematics changed during the methods course and the correlation between …

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Grand Valley Forum, Volume 030, Number 13, October 24, 2005, Grand Valley State University Oct 2005

Grand Valley Forum, Volume 030, Number 13, October 24, 2005, Grand Valley State University

2005-2006, Volume 30

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

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Current, October 24, 2005, University Of Missouri-St. Louis Oct 2005

Current, October 24, 2005, University Of Missouri-St. Louis

Current (2000s)

No abstract provided.

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Development Of A Centralized Database System For Embracing Horses And The Urban Farm, April D. Hoskins Oct 2005

Development Of A Centralized Database System For Embracing Horses And The Urban Farm, April D. Hoskins

Regis University Student Publications (comprehensive collection)

Embracing Horses and The Urban Farm at Stapleton, is a nonprofit organization whose mission statement is to connect children from inner city neighborhoods to their natural environment, instilling a sense of respect, appreciation, and, ultimately responsibility for the plants and animals which share that space and a working knowledge of responsible stewardship of those plants and animals. To achieve this mission a paper based and generic database system have been utilized to record information pertaining to volunteers, financial donors, program offerings, and mailing distributions. These current systems no longer meet the needs of the organization, as the number of children …

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The Collegian (2005-10-24), José Borjón Oct 2005

The Collegian (2005-10-24), José Borjón

UTB/TSC Archives - The Collegian [Newspaper]

Vol. 58, No. 10

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On-Demand Tutoring In Distance Education: Intrinsically-Motivated, Scalable Interpersonal Interaction To Improve Achievement, Completion, And Satisfaction, Peter B. Williams Oct 2005

On-Demand Tutoring In Distance Education: Intrinsically-Motivated, Scalable Interpersonal Interaction To Improve Achievement, Completion, And Satisfaction, Peter B. Williams

Theses and Dissertations

The purpose of the study was to test an intrinsically-motivated interaction approach, designed to increase distance education support, for both content and motivation, in a cost-effective manner. The literature summarized shows that distance education students desire content and motivational support beyond course materials and are limited in their success without it. Further, while researchers explore increased interaction as a solution, professors usually do not have time for it and attempts to provide it are often restricted by institutions' limited resources. Very little has been published on the effects of distance education tutors and the need for more research in this …

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Numerical Integration Of The Teukolsky Equation In The Time Domain, Enrique Pazos-Avalos, Carlos O. Lousto Oct 2005

Numerical Integration Of The Teukolsky Equation In The Time Domain, Enrique Pazos-Avalos, Carlos O. Lousto

Physics & Astronomy Faculty Publications

We present a fourth-order convergent, (2+1)-dimensional, numerical formalism to solve the Teukolsky equation in the time domain. Our approach is first to rewrite the Teukolsky equation as a system of first-order differential equations. In this way we get a system that has the form of an advection equation. This is then used in combination with a series expansion of the solution in powers of time. To obtain a fourth-order scheme we kept terms up to fourth derivative in time and use the advectionlike system of differential equations to substitute the temporal derivatives by spatial derivatives. This scheme is applied to …

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Sluice Boxes On The Shores: An Environmental History Of Gold Mining On Oregon's South Coast, Tania Louise Hyatt-Evenson Oct 2005

Sluice Boxes On The Shores: An Environmental History Of Gold Mining On Oregon's South Coast, Tania Louise Hyatt-Evenson

Dissertations and Theses

Environmental historians have researched, analyzed, and concluded that gold mining significantly altered the environment in Southern Oregon. Environmental case studies have examined mining's impact on the watersheds in the Rogue Valley, but none have analyzed the effect gold miners had on the Southern Oregon coast. While gold mining occurred on the South Coast from the 1850s to the 1940s, on a smaller scale, the impact from environmental change is just as significant. The purpose of this study is to understand how mining changed the landscape of the South Coast, and how this change affected the human populations that lived in …

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Progress Towards Terahertz Acoustic Phonon Generation In Doping Superlattices, Thomas E. Wilson Oct 2005

Progress Towards Terahertz Acoustic Phonon Generation In Doping Superlattices, Thomas E. Wilson

Physics Faculty Research

Progress is described in experiments to generate coherent terahertz acoustic phonons in silicon doping superlattices by the resonant absorption of nanosecond-pulsed far-infrared laser radiation. Future experiments are proposed that would use the superlattice as a transducer in a terahertz cryogenic acoustic reflection microscope with sub-nanometer resolution.

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Integral Neutron Multiplicity Measurements From Cosmic Ray Interactions In Lead, Thomas E. Ward, Alexander A. Rimsky-Korsakov, Nikolai A. Kudryashev, Denis E. Beller Oct 2005

Integral Neutron Multiplicity Measurements From Cosmic Ray Interactions In Lead, Thomas E. Ward, Alexander A. Rimsky-Korsakov, Nikolai A. Kudryashev, Denis E. Beller

Transmutation Sciences Physics (TRP)

Sixty element 3He neutron multiplicity detector systems were designed, constructed and tested for use in cosmic ray experiments with a 30-cm cube lead target. A series of measurements were performed for the cosmic ray configuration at ground level (3 meters water equivalent, mwe), in the St. Petersburg metro tunnel (185 mwe), and in the Pyhäsalmi mine in Finland (583 and 1185 mwe). Anomalous coincidence events with charged cosmic ray particles at sea level produced events with 100-120 neutrons due possibly to the total disintegration of the Pb nucleus. These events were also detected at 185 mwe, but the particles …

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Salinity (Conductivity) Sensor Based On Parallel Plate Capacitors, Shreyas Bhat Oct 2005

Salinity (Conductivity) Sensor Based On Parallel Plate Capacitors, Shreyas Bhat

USF Tampa Graduate Theses and Dissertations

This work is aimed at developing a high sensitivity salinity (conductivity) sensor for marine applications. The principle of sensing involves the use of parallel plate capacitors, which minimizes the proximity effects associated with inductive measurement techniques. The barrier properties of two different materials, AZ5214 and Honeywell's ACCUFLO T3027, were investigated for use as the insulation layer for the sensor. Impedance analysis performed on the two coatings using Agilent's 4924A Precision Impedance Analyzer served to prove that ACCUFLO was a better dielectric material for this application when compared to AZ5214.
Two separate detection circuits have been proposed for the salinity sensor. …

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Volume 41 - Issue 07 - Friday, October 21, 2005, Rose Thorn Staff Oct 2005

Volume 41 - Issue 07 - Friday, October 21, 2005, Rose Thorn Staff

The Rose Thorn Archive

The Rose Thorn, Rose-Hulman's independent student newspaper.

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Faculty Senate Meeting Minutes Oct 21, 2005, A-State Faculty Senate Oct 2005

Faculty Senate Meeting Minutes Oct 21, 2005, A-State Faculty Senate

Faculty Senate Minutes

No abstract provided.

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Ke Alakai, Special Issue For Byuh Jubilee Week (2005-10-21), Brigham Young University Hawaii Oct 2005

Ke Alakai, Special Issue For Byuh Jubilee Week (2005-10-21), Brigham Young University Hawaii

Ke Alaka'i

No abstract provided.

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Effective State Metamorphosis In Semi-Classical Loop Quantum Cosmology, Parampreet Singh Oct 2005

Effective State Metamorphosis In Semi-Classical Loop Quantum Cosmology, Parampreet Singh

Faculty Publications

Modification to the behaviour of geometrical density at short scales is a key result of loop quantum cosmology, responsible for an interesting phenomenology in the very early universe. We demonstrate the way matter with arbitrary scale factor dependence in Hamiltonian incorporates this change in its effective dynamics in the loop-modified phase. For generic matter, the equation of state starts varying near a critical scale factor, becomes negative below it and violates the strong energy condition. This opens a new avenue to generalize various phenomenological applications in loop quantum cosmology. We show that different ways to define energy density may yield …

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Washington University Record, October 21, 2005 Oct 2005

Washington University Record, October 21, 2005

Washington University Record

No abstract provided.

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Crusader, October, 21, 2005, College Of The Holy Cross Oct 2005

Crusader, October, 21, 2005, College Of The Holy Cross

Student Newspapers

The student newspaper for the College of the Holy Cross in Worcester, Massachusetts. Articles include coverage of campus events and issues, sports, editorials and special features.

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Volume Cxxiii, Number 5, October 21, 2005, Lawrence University Oct 2005

Volume Cxxiii, Number 5, October 21, 2005, Lawrence University

The Lawrentian

No abstract provided.

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System Parameters Of The Transiting Extrasolar Planet Hd 209458b, Robert A. Wittenmyer, William F. Welsh, Jerome A. Orosz, A. B. Schultz, Wayne Kinzel, M. Kochte, Frederick Bruhweiler, David Bennum, Gregory W. Henry, Geoffrey W. Marcy, Debra A. Fischer, R. Paul Butler, Steve Vogt Oct 2005

System Parameters Of The Transiting Extrasolar Planet Hd 209458b, Robert A. Wittenmyer, William F. Welsh, Jerome A. Orosz, A. B. Schultz, Wayne Kinzel, M. Kochte, Frederick Bruhweiler, David Bennum, Gregory W. Henry, Geoffrey W. Marcy, Debra A. Fischer, R. Paul Butler, Steve Vogt

Information Systems and Engineering Management Research Publications

We derive improved system parameters for the HD 209458 system using a model that simultaneously fits both photometric transit and radial velocity observations. The photometry consists of previous Hubble Space Telescope STIS and FGS observations, 12 I-band transits observed between 2001 and 2003 with the Mount Laguna Observatory 1 m telescope, and six Strömgren b + y transits observed between 2001 and 2004 with two of the Automatic Photometric Telescopes at Fairborn Observatory. The radial velocities were derived from Keck HIRES observations. The model properly treats the orbital dynamics of the system and thus yields robust and physically self-consistent solutions. …

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A Fine-Scale Linkage Disequilibrium Measure Based On Length Of Haplotype Sharing, Yan Wang, Lue Ping Zhao, Sandrine Dudoit Oct 2005

A Fine-Scale Linkage Disequilibrium Measure Based On Length Of Haplotype Sharing, Yan Wang, Lue Ping Zhao, Sandrine Dudoit

U.C. Berkeley Division of Biostatistics Working Paper Series

High-throughput genotyping technologies for single nucleotide polymorphisms (SNP) have enabled the recent completion of the International HapMap Project (Phase I), which has stimulated much interest in studying genome-wide linkage disequilibrium (LD) patterns. Conventional LD measures, such as D' and r-square, are two-point measurements, and their relationship with physical distance is highly noisy. We propose a new LD measure, defined in terms of the correlation coefficient for shared haplotype lengths around two loci, thereby borrowing information from multiple loci. A U-statistic-based estimator of the new LD measure, which takes into consideration the dependence structure of the observed data, is developed and …

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