Physical Sciences and Mathematics Commons^™

An International Study Of Intensity In Talented Teenagers Using The Overexcitability Questionnaire (Oeq), John Fraas, Jane Piirto, Geri Cassone, Cheryl Ackerman

John W. Fraas

No abstract provided.

Hplc Analysis Of Amino Acid- And Peptide-Derived Chloramines, Thomas Goyne, Jennifer Latham, Suzanne Furness-Green, Tracy Inskeep, Lu Ping, Heather Greenleaf-Schumann

Thomas Goyne

No abstract provided.

Η Production In Peripheral Heavy-Ion Collisions, Alec Schramm, Daniel Reeves

Alec J Schramm

We estimate the impact parameter dependence of the production cross section for ηc and ηb mesons in peripheral heavy-ion collisions. Total and elastic γγ cross sections are calculated in an equivalent photon approximation.

Equatorial Wind Compression Effects Across The H-R Diagram., R. Ignace, J. P. Cassinelli

Richard Ignace

We investigate the degree to which moderate stellar rotation rates can influence the two-dimensional density structure in the winds of four classes of stars: WoIf-Rayet, B[e], asymptotic giant branch (AGB), and novae. These classes are distributed across the H-R diagram and have a wide range of escape speeds and wind acceleration. Furthermore, all have members which possess asymmetric circumstellar nebulae. It has been suggested that these asymmetries could result from stellar winds which have moderate equatorial density enhancements. Large enhancements may arise as the result of stellar rotation as demonstrated by the wind-compressed disk (WCD) model of Bjorkman & Cassinelli. …

Obat Telinga Berdengung, Riswan Alfarid

Riswan Alfarid

Scanning Local‐Acceleration Microscopy, Nancy Burnham, A. Kulik, G. Gremaud, P. Gallo, F. Oulevey

Nancy A. Burnham

By adapting a scanning force microscope to operate at frequencies above the highest tip–sample resonance, the sensitivity of the microscope to materials’ properties is greatly enhanced. The cantilever’s behavior in response to high‐frequency excitation from a transducer underneath the sample is fundamentally different than to its low‐frequency response. In this article, the motivations, instrumentation, theory, and first results for this technique are described.

Non-Traditional Techniques In Teaching Science For General Students, Gary Lewis, Ben Golden, Gail Schiffer, Diane Willey

Gary C. Lewis

No abstract provided.

World Wide Web, Netscape, And Simple Html Coding: What Use Do They Have In The Classroom?, C. Claiborne, Sonya Shepherd

Sonya S. Gaither

No abstract provided.

Materials’ Properties Measurements: Choosing The Optimal Scanning Probe Microscope Configuration, Nancy Burnham, G Gremaud, A Kulik, P Gallo, F Oulevey

Nancy A. Burnham

Rheological models are used to represent different scanning probe microscope configurations. The solutions for their static and dynamic behavior are found and used to analyze which scanning probe microscope configuration is best for a given application. We find that modulating the sample at high frequencies results in the best microscope behavior for measuring the stiffness of rigid materials, and that by modulating the tip at low frequencies and detecting the motion of the tip itself (not its position relative to the tip holder) should be best for studying compliant materials in liquids.

On The Optimization Of A Dc Arcjet Diamond Chemical Vapor Deposition Reactor, Scott Reeve, Wayne Weimer, David Dandy

Scott Reeve

No abstract provided.

Studies Of The Importance Of Molecular Structure And Orientation To Adhesive Interactions At Interfaces, Cynthia Kraft, Mark Anderson

Mark R. Anderson

No abstract is currently available.

The Importance Of Analyzing Longitudinal Data In A Formative Evaluation Process: Applying Statistical Quality Control Techniques, John Fraas, Isadore Newman

John W. Fraas

No abstract provided.

Vanadium(Iv) Complexes With Mixed O,S Donor Ligands. Syntheses, Structures, And Properties Of The Anions Tris(2-Mercapto-4-Methylphenolato)Vanadate(Iv) And Bis(2-Mercaptophenolato)Oxovanadate(Iv), Paul Klich, Andrew Daniher, Paul Challen, David Mcconville, Wiley Youngs

Paul R. Challen

Reaction of VO(acac)2 with 2-mercaptophenol (mpH2) in the presence of triethylamine gives the mononuclear tris complex (Et3NH)2[V(mp)3] (1), in which the vanadyl oxygen has been displaced. An analogous reaction using 2-mercapto-4-methylphenol (mmpH2) afforded (Et3NH)(PNP)[V(mmp)3] (2), which was structurally characterized. 2 crystallizes in the orthorhombic space group Pna21 with unit cell parameters (at −163 °C) a = 23.974(7) Å, b = 9.569(4) Å, c = 25.101(6) Å, and Z = 4. The coordination geometry around the vanadium is between octahedral and trigonal prismatic. Reaction of VO(acac)2 with the sodium salt of 2-mercaptophenol produces the vanadyl(IV) complex Na(Ph4P)[VO(mp)2]·Et2O (3), which crystallizes in …

Error In The Calculation Of Synchronized Spontaneous Otoacoustic Emission Frequencies Measured With The Ilo88 System, Jacek Smurzynski, Rudolf Probst

Jacek Smurzynski

No abstract provided.

Secrets Of The Madelung Constant, Stan Wagon

Stan Wagon, Retired

No abstract provided.

Polynomials For Radicals, Stan Wagon

Stan Wagon, Retired

No abstract provided.

System For Synchronizing Execution By A Processing Element Of Threads Within A Process Using A State Indicator Us:5553305, Robert Iannucci, Steven Gregor

Robert A Iannucci

No abstract provided.

Answer To Question #26. Electromagnetic Field Momentum, Br Holstein

Barry R Holstein

No abstract provided.

Lion-Tailed Macaques (Macaca Silenus) In A Disturbed Forest Fragment: Activity Patterns And Time Budget, Shaily Menon, Frank Poirier

Shaily Menon

We describe the activity patterns and time budget of a feral group of lion-tailed macaques that were confined to a disturbed forest fragment of 65 ha and compare the results with those obtained for groups in protected forests. The degraded nature of the study site was reflected in low tree densities, low specific diversity, gaps in the girth distribution of trees, and frequent disturbance by humans. The study group of 43 subjects was twice as large as lion-tailed macaque groups in protected habitats. They spent the most time ranging (34.0%), followed by foraging (23.7%), feeding (17.9%), resting (16.0%), and other …

Development Of A Shear-Zone Bounded Block Uplift Within The Middle Crust Of The Archean Wyoming Province During Proterozoic Accretion, Laramie Mts., Wy, Phillip Resor, A Snoke, K Chamberlain

Phillip G Resor

No abstract provided.

How Can Software Reliability Engineering (Sre) Help System Engineers And Software Architects?, Robert Yacobellis

Robert H Yacobellis

No abstract provided.

Enhancing Quality Through An Integrated Approach To Supportability, Caroline Lubert, J. Knezevic

Caroline P Lubert

No abstract provided.

The Magic Of Imaginary Factoring, Stan Wagon

Stan Wagon, Retired

No abstract provided.

Understanding Alpha Decay, Br Holstein

Barry R Holstein

The subject of alpha decay is an important part of a course in modern physics, as it provides a clear experimental manifestation of the phenomenon of barrier penetration. The traditional approach, based on Gamow's complex eigenvalue method, raises a number of questions which can be answered by employing the older but less well-known procedure of summing over scattering states. Additional insights are gained by examination of the alpha decay system via more contemporary path integral based techniques.

Animating Calculus: Mathematica Notebooks For The Laboratory, E. Packel, Stan Wagon

Stan Wagon, Retired

No abstract provided.

Nonparametric Regression Using Bayesian Variable Selection, Michael Smith, Robert Kohn

Michael Stanley Smith

No abstract provided.

Finite Sample Performance Of Robust Bayesian Regression, Michael Smith, Sheather Simon, Kohn Robert

Michael Stanley Smith

No abstract provided.

Plant Conservation., Nat Quansah

Nat Quansah

No abstract provided.

A Variational Inequality For Marketable Pollution Permits, Anna Nagurney, Kathy Dhanda

Kathy K Dhanda

No abstract provided.

In-Situ Imaging Of Ionic Crystal Dissolution Using An Integrated Electrochemical/Afm Probe, Julie V. Macpherson, Patrick R. Unwin, Andrew C. Hillier, Allen J. Bard

Andrew C. Hillier

The kinetics and mechanism controlling dissolution from the (100) cleavage face of potassium bromide single crystals in acetonitrile solutions have been identified using a novel integrated electrochemical/AFM probe and a scanning electrochemical microscope (SECM). With both techniques, dissolution is induced by perturbing the dynamic dissolution/growth equilibrium at the crystal/solution interface through the electrochemical oxidation of bromide ions. SECM measurements demonstrate that the dissolution reaction is diffusion-limited under the experimental conditions, suggesting that the surface reaction is characterized by a rate constant in excess of 5 cm s-1 (assuming a first-order dissolution process). The topography of the dissolving surface has been …