Physical Sciences and Mathematics Commons^™

Resources Related To Mathematics, Art And Nature, Vicki Beitler

Sabbaticals

The purpose of my sabbatical work was to learn about resources related to mathematics and art, nature, music and architecture. These subjects appeal to a wide audience, yet their mathematical connections are often on the periphery of a mathematics student's studies. In this way I planned to increase my knowledge of mathematics but at the same time broaden my understanding of cross-disciplinary subjects.

On The Nonembeddability And Crossing Numbers Of Some Kleinical Polyhedral Maps On The Torus, Adrian Riskin, Judy L. Klein

Mathematics

We designed and constructed a sundial for the purpose of observing the declination of the sun and thus marking solar seasonal variation. The 122 × 122 cm vertical sundial on the south-facing wall of our library has two unusual features: a nodus on the gnomon that casts a shadow of a point for marking the height of the sun and a large blank working space for students to mark the shadow of the nodus at different hours of the day and to connect the marks of 1 day in a line of declination. We discuss the design of a dial …

Oregon Collaborative For Excellence In The Preparation Of Teachers – An Overview, M. Enneking

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Peer-Led Team Learning In Introductory Biology And Chemistry Courses: A Parallel Approach, A. Tenney, B. Houck

Journal of Mathematics and Science: Collaborative Explorations

Peer-Led Team Learning has been in use in Introductory Biology and Introductory Chemistry since Fall 1999 at the University of Portland. lts effect on improved conceptual understanding, retention of students, and improvement in study skills will be discussed. An ancillary, but no less important benefit in the development of interest in science teaching among the peer leaders, is also addressed.

Journal Of Mathematics And Science: Collaborative Explorations

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

The Development Of Instruments For Assessment Of Instructional Practices In Standards-Based Teaching, C. L. Wainwright, L. Flick, P. Morrell

Journal of Mathematics and Science: Collaborative Explorations

We provide a description and rationale for the development of two instruments: 1) a classroom observation protocol; and, 2) a teacher interview protocol—designed to document the impact of reform-based professional development with undergraduate mathematics and science faculty, and its impact on the resultant preparation of teachers. Constructed upon review of the research on teaching and standards documents in mathematics and science, these instruments form the basis for data collection in a three-year longitudinal study of teaching practice among early career teachers as well as undergraduate college faculty. In addition, we suggest further applications of the observation protocol beyond the original …

A Descriptive Comparison Of One University Instructor's Instruction During Pre-Service Mathematics Courses And The Subsequent Mathematics And Science Instruction Of Three Of His Students During Their Student Teaching Experience, S. Blair

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Lessons Learned From Efforts At Institutional Change: Case Studies Of Six Ocept Institutions, T. G. Chenoweth, M. K. Kinnick, R. D. Walleri

Journal of Mathematics and Science: Collaborative Explorations

As one part of a multifaceted evaluation of the Oregon Collaborative for Excellence in the Preparation of Teachers (OCEPT), a case study approach was used to enable a deeper understanding of how a diverse group of six institutions attempted to achieve OCEPT goals and to learn more about factors that facilitated or hindered their efforts. Multiple sources of data were used, with heavy reliance on a series of on-site interviews. The analytical framework included a "depth" and "pervasiveness" typology of institutional change and a view of change as encompassing "meaning," "organization," and "effects." While goals and accomplishment levels, as well …

Geosciences For Elementary Educators: A Course Assessment, M. L. Cummings, M. Goodrich, D. Burmester

Journal of Mathematics and Science: Collaborative Explorations

Geosciences for Elementary Educators engages future elementary teachers in a hands-on investigation of topics aligned with the third and fifth grade Earth/Space Science and Scientific Inquiry benchmarks of the Oregon Content Standards. The course was designed to develop the content background of elementary teachers within the framework of the science described in the content standards, to provide an opportunity for future teachers to explore the content area in relation to what takes place in the classrooms of elementary schools, and to initiate a community of learners focused on teaching science to elementary students. The course focused on four themes: the …

Methods Of Smile: A Science Seminar Course In "Deliberate Education", E. Davis-Butts, R. Collay

Journal of Mathematics and Science: Collaborative Explorations

Oregon State University’s Science and Math Investigative Learning Experiences (SMILE) Program is an enrichment program for minority and underrepresented K-12 students. Through an eight-year iterative process, SMILE has developed and refined a science seminar course that allows undergraduate and master’s degree students to explore science enrichment for youth. Students enrolled in the course are engaged in teaching and learning as a community of learners with a focus on service learning. The intended audience for the course is those students who are interested in working in educational settings with youth—as classroom teachers, science/mathematics professionals engaged in precollege outreach, and the like. …

The Occurrence Of Reform Teaching Practice In Undergraduate Mathematics And Science Classes: The Students' Perspective, P. D. Morrell, J. B. Carroll

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Student Work Section, R. Howard

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

The Perfect Perspective: A Mathematical Analysis Of Perspective Using Tools Available To Middle School Students, W. Griffin

Journal of Mathematics and Science: Collaborative Explorations

This paper examines the basic properties of perspective drawings, the history of perspective drawings, and the basic mathematics of perspective. Using a side view and a top view of a three-dimensional projection, similar triangles can be used to find distances from the axes and vanishing point in a projection. By breaking the three-dimensional projection into two, two-dimensional planes, one can recreate projections based on actual figures, or create placements of figures in real space based on a projection. Using this method, one 'can change a projection based on the changing position of the vanishing point. This simple approach to perspective …

Aims & Scope

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Magnetic Properties Of Al, V, Mn, And Ru Impurities In Fe–Co Alloys, B. V. Reddy, S. C. Deevi, S. N. Khanna

Physics Publications

Theoretical studies on the magnetic properties of impurities in Fe–Co alloys have been carried out using a molecular-orbital approach within a gradient corrected density functional formalism. The defected alloy is modeled by a large cluster and the calculations on the ordered alloy are used to show that a cluster containing 67 atoms can provide quantitative information on the local magnetic moment. It is found that although bulk Al, V, and Ru are nonmagnetic, all the impurities carry finite moments. While Al and V impurities couple antiferromagnetically, Ru impurities couple ferromagnetically to the host sites. It is shown that the observed …

Pain And Distress Associated With Polyclonal Antibody Production: Discussion And Recommendations, The Humane Society Of The United States

ANIMAL RESEARCH

The Humane Society of the United States (HSUS) held a workshop in August 2002 in order to develop recommendations for minimizing pain and distress associated with polyclonal antibody (Pab) production. A small group of experts in the fields of antibody production, animal welfare, in vitro alternatives, and/or regulatory compliance participated in the roundtable discussion. The workshop was a scientifically based meeting, and recommendations were based on the extensive experience of the workshop participants as well as published literature regarding the relevant issues.

Participants recognized that insufficient attention has been paid to animal welfare aspects of Pab production, in part because …

The Speed And Orientation Of The Parsec-Scale Jet In 3c 279, B. Glenn Piner, Stephen C. Unwind, Ann E. Wehrle, Alma C. Zook, C. Megan Urry, Diane M. Gilmore

Physics

A high degree of relativistic beaming is inferred for the jets of blazars on the basis of several lines of evidence, but the intrinsic speed and angle of the jet to the line of sight for individual sources are difficult to measure. We have calculated inverse Compton Doppler factors for 3C 279 using the collection of VLBI data (including high-resolution space VLBI data at low frequencies) recently published by us (as Wehrle et al. and Piner et al.) and the collection of multiwavelength spectra recently published by Hartman et al. From the Doppler factor and superluminal apparent speed, we then …

An Oscillation Theorem For Discrete Eigenvalue Problems, Martin Bohner, Ondřej Došlý, Werner Kratz

Mathematics and Statistics Faculty Research & Creative Works

In this paper we consider problems that consist of symplectic difference systems depending on an eigenvalue parameter, together with self-adjoint boundary conditions. Such symplectic difference systems contain as important cases linear Hamiltonian difference systems and also Sturm-Liouville difference equations of second and of higher order. The main result of this paper is an oscillation theorem that relates the number of eigenvalues to the number of generalized zeros of solutions.

The State Of Coral Reef Ecosystems Of The United States And Pacific Freely Associated States: 2002, Donna D. Turgeon, Rebecca G. Asch, Billy Causey, Richard E. Dodge, Walter Jaap, Kenneth Banks, Joanne Delaney, Brian Keller, Richard E. Spieler, Cruz A. Matos, Jorge R. Garcia, Ernesto Diaz, Don Catanzaro, Caroline Rogers, Zandy Hillis-Starr, Richard Nemeth, Herman Taylor, Marcia Taylor, George P. Schmahl, Margaret W. Miller, David A. Gulko, James E. Maragos, Alan Friedlander, Cynthia L. Hunter, Russell E. Brainard, Peter Craig, Robert H. Richmond, Gerry W. Davis, John Starmer, Michael Trianni, Peter Houk, Charles E. Birkeland, Ahser Edward, Yimnang Golbuu, Jay Gutierrez, Noah Idechong, James E. Maragos, Gustav Paulay, Andrew Tafileichig, Nancy Vander Velde

Marine & Environmental Sciences Faculty Reports

Called for by the U.S. Coral Reef Task Force’s (USCRTF) National Action Plan to Conserve Coral Reefs, this is the first biennial report on the condition of coral reefs. It is the scientific baseline for subsequent reports on the health of U.S. coral reef ecosystems that are to be used by NOAA and others to evaluate the efficacy of coral reef conservation and management practices. The National Oceanic and Atmospheric Administration’s National Ocean Service led the development of this report. It was authored by 38 experts and supported by 79 contributors from government agencies and non-governmental organizations across the nation …

Habitat Standardization Of Cpue Indices: Research Needs, C. Phillip Goodyear, David Die, David W. Kerstetter, Donald Olson, Eric Prince, Gerald P. Scott

Marine & Environmental Sciences Faculty Reports

Habitat standardization for billfish CPUE offers a potentially useful alternative to the statistical procedures used in the past. However, most of the assumptions of the current habitatstandardization methodology remain untested and some are not consistent with current knowledge about the behavior of billfish. This paper outlines research required to ensure the methods for habitat standardization produce robust estimates of CPUE.

Habitat Preferences Of Istiophorid Billfishes In The Western North Atlantic: Applicability Of Archival Tag Data To Habitat-Based Stock Assessment Methodologies, John E. Graves, David W. Kerstetter, Brian E. Luckhurst, Eric D. Prince

Marine & Environmental Sciences Faculty Reports

The Japanese pelagic longline fishery, which has a broad temporal and spatial coverage in the Atlantic Ocean, provides an important time series used in assessments of istiophorid billfishes. Past assessments of Atlantic blue marlin and white marlin by the ICCAT SCRS indicate a pronounced decrease in stock abundance of both species over the past fifty years. The current biomass of the white marlin is estimated to be 15% of that necessary for maximum sustainable yield (BMSY), while blue marlin are estimated to be at 0.4 BMSY. Over the past fifty years Japanese pelagic longline fishing operations have moved from shallow …

Sea Turtle Conservation Program, Broward County, Fl 2003 Report, Curtis M. Burney, Stefanie Ouellette

Marine & Environmental Sciences Faculty Reports

No abstract provided.

Marine Biological Monitoring In Broward County, Florida: Year 3 Annual Report, David S. Gilliam, Richard Dodge, Richard E. Spieler, Lance K. B. Jordan, Jamie A. Vernacchio

Marine & Environmental Sciences Faculty Reports

A study has been undertaken to monitor Broward County, Florida (southeast Florida) coral communities, reef fish assemblages and sedimentation rates in relation to possible effects from a proposed extensive beach renourishment (restoration) project. Coral communities and reef fish assemblages will be monitored at a total of 23 stations distributed offshore Broward County. This monitoring effort will characterize and quantify populations of scleractinian (stony) corals, octocorallian (gorgonian) corals, sponges, and reef fishes. In addition, sediment traps located at each station will be sampled and analyzed.

This document reports the data collected during the third year of this project. Coral communities and …

Winter 2003, Nsu Oceanographic Center

Currents

No abstract provided.

Master Of Science Degree Programs 2003-2005, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

2003-2004 Nova Southeastern University Farquhar College Of Arts And Sciences Catalog, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

Priority-Based Lambda Scheduler, Kalpana Ganesan, Byrav Ramamurthy

CSE Conference and Workshop Papers

Optical networks provide a new dimension to meet the demands of exponentially growing traffic. Optical packet switching requires a good switch architecture, which eliminates the O/E/O conversion as much as possible. Wavelength Division Multiplexing (WDM) provides a breakthrough to exploit the huge bandwidth of the optical fiber. Different applications have different requirements, which necessitate employing differentiated services. This paper presents the idea of a priority-based λ-scheduler, where the packets are differentiated into different classes and services are provided accordingly. For example, class 0 can correspond to non real time applications like email and ftp, while class 1 can correspond to …

Tws Wildlife Damage Management Working Group Newsletter: Spring 2003 – Volume 10(1)

TWS Wildlife Damage Management Working Group Newsletter

Forward; Recent Working Group Activities; Note From The Treasurer; Note From The Editor; Announcements; Application For Membership / The Wildlife Society

An Optical Trap For Relativistic Plasma, Ping Zhang, Ned Saleh, Shouyuan Chen, Zhengming Sheng, Donald Umstadter

Donald Umstadter Publications

The first optical trap capable of confining relativistic electrons, with kinetic energy <350 keV was created by the interference of spatially and temporally overlapping terawatt power, 400 fs duration laser pulses (<2.4x10¹⁸ W/cm²) in plasma. Analysis and computer simulation predicted that the plasma density was greatly modulated, reaching a peak density up to 10 times the background density (ne /n0;10) at the interference minima. Associated with this charge displacement, a direct-current electrostatic field of strength of ~2 x 10¹¹ eV/m was excited. These predictions were confirmed experimentally by Thomson and Raman scattering diagnostics. Also confirmed were predictions that the electron density grating acted as a multi-layer mirror to transfer energy between the crossed laser beams, resulting …

Fire Climate Interactions And Predicting Fire Season Severity In The Mediterranean Climate Areas Of California, Southern Oregon, And Western Nevada, Alan H. Taylor, Carl N. Skinner, Andrew M. Carleton, Scott L. Stephens, Valerie Trouet, Bernd Haupt, Andrew Pierce

JFSP Research Project Reports

• We identified annual area burned for 37 National Forests in Washington, Oregon, and California between 1929 and 2004 from annual fire reports. Variation in area burned each year on National Forest lands is strongly related (r2 = 0.87) to total area burned in California. This indicates area burned in National Forests is a good indicator of total area burned in a state. • Four large groups of National Forests were identified that had similar temporal patterns of fire extent. Three of these groups were spatially coherent and included mainly: 1) Washington and northern Oregon; 2) northern California and California …