Physical Sciences and Mathematics Commons^™

Circles, Valentino Loiacono

Humanistic Mathematics Network Journal

No abstract provided.

Between Childhood And Mathematics: Word Problems In Mathematical Education, André Toom

Humanistic Mathematics Network Journal

No abstract provided.

A Mathematics Manifesto: Think Differently! Think Quantitatively!Quantitative Awareness As A Fresh Thinking Cap, Miriam Lipschutz-Yevick

Humanistic Mathematics Network Journal

No abstract provided.

Multiplication, Molly Hager

Humanistic Mathematics Network Journal

No abstract provided.

Math Is Really Great, Eric Rasyidi

Humanistic Mathematics Network Journal

No abstract provided.

Using Writing To Connect With Our Mathematics Students, Ann Sitomer

Humanistic Mathematics Network Journal

No abstract provided.

Adding Is As Easy As One, Two, Three, Marshall Sachs

Humanistic Mathematics Network Journal

No abstract provided.

Art And Geometry: Proportion And Similarity, Catherine A. Gorini

Humanistic Mathematics Network Journal

No abstract provided.

Analogic Thinking In Science And Math, Martha D. Patton

Humanistic Mathematics Network Journal

No abstract provided.

A Collection Of Ideas On Systems And Their Extensions, Paul Fjelstad

Humanistic Mathematics Network Journal

No abstract provided.

Book Review: Strength In Numbers By Sherman Stein, Alvin White

Humanistic Mathematics Network Journal

No abstract provided.

One Plus One, Mae Talle

Humanistic Mathematics Network Journal

No abstract provided.

An Informal History Of Classical Rhetoric For Mathematicians (Plato And Aristotle), Phillip Keith, Sandra Z. Keith

Humanistic Mathematics Network Journal

No abstract provided.

Book Review: What Is Mathematics, Really? By Reuben Hersh, Harald M. Ness

Humanistic Mathematics Network Journal

No abstract provided.

Differential Reflection Phase Shift Under Conditions Of Attenuated Internal Reflection, R. M.A. Azzam

Electrical Engineering Faculty Publications

The angle-of-incidence dependence of the differential reflection phase shift Δ between p and s polarizations is considered a function of the real and imaginary parts of the relative complex dielectric function ε of an interface in the domain of fractional optical constants, i.e., under conditions of internal reflection. The constraint on complex ε such that oscillatory and monotonic angular responses are obtained is determined. A sensitive and stable technique, which is based on attenuated internal reflection ellipsometry between the Brewster angle and the critical angle, is proposed for measuring small induced absorption (ε_i∼10⁻⁵) in the medium …

Techniques For Automated High‐Precision Photometry Of Sun‐Like Stars, Gregory W. Henry

Information Systems and Engineering Management Research Publications

Tennessee State University operates several Automatic Photoelectric Telescopes (APTs) located at Fairborn Observatory in the Patagonia Mountains of southern Arizona. The APTs are dedicated to photometric monitoring programs that would be difficult and expensive to accomplish without the advantages provided by automation. I describe the operation of two of the telescopes (0.75 and 0.80 m APTs) and the quality‐control techniques that result in their routine acquisition of single‐star differential photometry with a precision of 0.001 mag for single observations and 0.0001–0.0002 mag for seasonal means. I show that a primary obstacle to photometry at this level of precision is intrinsic …

Evidence Of A Solar Origin For Pressure Balance Structures In The High-Latitude Solar Wind, Daniel B. Reisenfeld, D. J. Mccomas, J. T. Steinberg

Physics and Astronomy Faculty Publications

Ulysses observations of the high-latitude solar wind have shown that on time scales of < 1 day, the polar wind is dominated by pressure balance structures (PBSs). Fluctuations of the plasma beta within PBSs appear to be strongly correlated with fluctuations in the helium abundance. The correlation occurs in both the northern and southern hemispheres. In addition, a mechanism is apparently at work in the high-latitude solar wind that dissipates the beta/He correlation over a distance of a few AU. Solar wind composition is established at the base of the corona; thus, the He abundance signature strongly suggests the observed solar wind PBSs are associated with structures low in the solar atmosphere. In particular, high-beta structures appear to originate in locations of enhanced He abundance. We suggest an interpretation of the high-beta portion of PBSs as the solar wind extensions of polar plumes.

The Genre Of The Apocalypse: What Are They Saying Now?, M. G. Michael

Faculty of Informatics - Papers (Archive)

No abstract provided.

Asymptotic Average Redundancy Of Huffman (And Shannon-Fano) Block Codes, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.

Scwds Briefs: Volume 15, Number 2 (July 1999)

Southeastern Cooperative Wildlife Disease Study: Publications

SCWDS BRIEFS
July 1999
1998 HD Summary
Hemorrhagic disease (HD)
EHD virus serotype 2 (EHDV-2)
Viral RNA
HD Virus Isolation Support
Epizootic hemorrhagic disease virus (EHDV)
Bluetongue Virus (BTV)
Cattle pulmonary artery endothelial (CPAE)
BHK21 cells
Recommendations for the Use of Lyme Disease Vaccine
Lyme disease
Drug Enforcement Administration (DEA)
Ketamine
Avian Brain Lesion Syndrome (ABLS)
Coot and Eagle Brain Lesion Syndrome (CEBLS)
Harold M. Smith -- 1942-1999

Valence-Band Ordering In Zno, D. C. Reynolds, David C. Look, B. Jogai, C. W. Litton, G. Cantwell, W. C. Harsch

Physics Faculty Publications

The emission and reflection spectra of ZnO have been investigated in the intrinsic region and the data have been interpreted in terms of the wurtzite crystal band structure. Free-exciton emission is observed for the first time. Both the Γ₅ and Γ₆ state excitons associated with top valence band have been identified. This identification has established the valence-band symmetry ordering in ZnO.

Unoccupied Band Structure Of Strained Gadolinium, Takashi Komesu, C. Waldfried, Peter A. Dowben

Peter Dowben Publications

From spin-polarized inverse photoemission, the experimental spin-resolved unoccupied band structure of gadolinium on Mo(112) has been constructed. The spin-dependent unoccupied electronic structure near the Fermi level is dominated by shallow dispersion of a spin-minority band. A spin-majority and -minority bulk-band pair also exhibits some dispersion across the Brillouin zone.

Investigation Of Resonant Photoemission In Gd With X-Ray Linear Dichroism, Shubhra R. Mishra, Thomas K. Cummins, George Daniel Waddill, W. J. Gammon, Gerrit V. Van Der Laan, Kyle W. Goodman, James G. Tobin

Physics Faculty Research & Creative Works

The constructive summing of direct and indirect channels above the absorption threshold of a core level can cause a massive increase in the emission cross section, leading to a phenomenon called "resonant photoemission." Using novel magnetic linear dichroism in angular distribution photoelectron spectroscopy experiments and theoretical simulations, we have probed the nature of the resonant photoemission process in Gd metal. It now appears that temporal matching as well as energy matching is a requirement for true resonant photoemission.

Unoccupied Band Structure Of Strained Gadolinium, Takashi Komesu, C. Waldfried, Peter A. Dowben

Peter Dowben Publications

From spin-polarized inverse photoemission, the experimental spin-resolved unoccupied band structure of gadolinium on Mo(112) has been constructed. The spin-dependent unoccupied electronic structure near the Fermi level is dominated by shallow dispersion of a spin-minority band. A spin-majority and -minority bulk-band pair also exhibits some dispersion across the Brillouin zone.

Structure And Hysteresis Of Patterned Soft-Magnetic Structure, C. N. Borca, Ralph Skomski, Peter A. Dowben

Peter Dowben Publications

We have analyzed the magnetism of Ni features deposited on nonmagnetic substrates using a novel method: laser assisted chemical vapor deposition. Both coercivity and loop shape are determined on a scale of order 1 mm, which is much smaller than the lateral size of the features. The magnetization curves are fitted to a simple substructure morphology model, although there is secondary dependence of the coercivity on the shape of the structures.

Why The Player Never Wins In The Long Run At La Blackjack, Arthur T. Benjamin, Michael Lauzon '00, Christopher Moore '00

All HMC Faculty Publications and Research

No abstract provided in this article.

Probing Nonequilibrium Electron Distributions In Gold By Use Of Second Harmonic Generation, K. L. Moore '99, Thomas D. Donnelly

All HMC Faculty Publications and Research

Second-harmonic radiation is generated at a gold surface by use of a laser pulse that is varied in duration from 14 to 29 fs and in intensity from 10⁹ to 10¹¹W/cm² . At laser intensities below 10¹⁰W/cm² , the second-harmonic signal has the expected quadratic dependence on pump-laser intensity; however, at higher intensities, the dependence is supraquadratic. This difference arises because the leading edge of the laser pulse interacts significantly with the gold electrons to create a nonequilibrium, photoexcited distribution. The second-harmonic generation process occurs before electron–electron or electron–phonon collisions can equilibrate the …

Challenges For Directors Of University Natural Science Museums, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Universities and natural science museums have a long, productive history; however, this has been an uneasy alliance in the United States at least since the 1880s. Decreasing resources and increasing expectations have made the position of all museum directors extremely difficult, but the situation for university natural science museum directors is probably the most complicated among these because they direct museums that are small administrative units within larger university organizations. Some of their challenges include conflict between museum and university missions, governance issues, relationship between director and the university administrator/board member, lack of understanding of museum functions, middle management role …

Level Adjusted Exponential Smoothing: A Method For Judgmentally Adjusting Exponential Smoothing Models For Planned Discontinuities, Dan Williams, Don Miller

Publications and Research

Forecasters often make judgmental adjustments to exponential smoothing forecasts to account for the effects of a future planned change. While this approach may produce sound initial forecasts, it can result in diminished accuracy for forecast updates. A proposed technique lets the forecaster include policy change adjustments within an exponential smoothing model. For 20 real data series representing Virginia Medicaid expenses, initial forecasts and forecast updates are developed using the proposed technique and several alternatives, and they are updated through various simulated level shifts. The proposed technique was more accurate than the alternatives in updating forecasts when a shift in level …

Fisheries Research Report No. 111 - Sea Temperature Variability Off Western Australia 1990 To 1994, Alan Pearce, Mark Rossbach, Marion Tait, Rhys Brown

Fisheries research reports

Analysis of temperature data from coastal waters between Shark Bay and Cape Mentelle has shown the main features of temporal and spatial variability in temperature along the Western Australian coastline. Three distinct periods of variability emerge: the annual cycle (peak temperatures generally in January-February and troughs in July-August), a few-day (weatherrelated) cycle, and the diurnal pattern.

Summer temperatures range from 24° C (South Passage) to 19° C (Cape Mentelle), and winter temperatures from 21° C (South Passage) to 16° C (Marmion). Mean annual temperature ranges (winter minimum to summer maximum) are between 3° C (South Passage) and 7° C (Alkimos), …