Digital Commons Network^™

The Solutions Of The Classical Relativistic Two-Body Equation, Coşkun Önem

Turkish Journal of Physics

With the relativistic Kepler problem, a two-body system is studied for positronium, the hydrogen atom and $m_2 >> m_1$ cases.

Dimensionality And Energy Levels Of Quantum Mechanical Systems, Harry A. Mavromatis

Turkish Journal of Physics

The $N$-dimensional Schrödinger equation involving a general, central potential $V_N(r)$, is decomposed into a 3-dimensional component plus a term that may be treated as a dimension-dependent perturbation. This allows discussion of the general $N$-dimensional system from a 3-dimensional perspective.

Current-Voltage Characteristics And Photoresponse Of Metal Metal Devices, K. Singh, S.N.A. Hammond

Turkish Journal of Physics

Thin films (35 \AA) of $Al_2O_3$ on glass slides have been used for the fabrication of $Al/Al_2O_3/Al, Ag/Al_2O_3/Al$ and $Cu/Al_2O_3/Al$ devices. The room temperature current-voltage characteristics and the dependence of current densities of these devices at various wavelength $(\lambda)$ of light were measured. The results obtained on current density and photocurrent show that $Al_2O_3$ films have the potential for wider applications like antireflective coatings or treatments in photovoltaic devices, transparent insulation materials, and optical trapping surfaces in many electronic devices.

Physics At Future Ep, \Gammap (Linac-Ring) And \Mup Colliders, Ilya F. Ginzburg

Turkish Journal of Physics

The physical problems for the enumerated colliders are discussed. It is taken into account that all these machines can work only after corresponding parental colliders.

Physics At Hera+Lc Based \Gammap Colliders, Z. Z. Aydin

Turkish Journal of Physics

In this proceeding I discuss the proposal of constructing a $\gamma p$ collider at DESY based on a Linac-Ring type $ep$ machine, the HERA+LC. A high energy $\gamma$ beam for this collider is produced by the Compton back-scattering of laser photons off the electron beam from the linear accelerator. Using the parameters of the proton ring of HERA and those of the proposed linear $e^{+}e^{-}$ colliders (LC, specifically TESLA, CLIC or Linac1) we expect a luminosity of $L_{\gamma p} =(1-2)\times 10^{31} cm^{-2} s^{-1}$, due to a reasonable improvement of the proton beam. We examine the physics research program for the …

Searching For Leptoquarks At Gamma-P Colliders, S. Atağ

Turkish Journal of Physics

A study for single and pair production of scalar and vector leptoquarks in the collision of high energy $\gamma $ and proton beams is presented. It is shown that future $\gamma p$ colliders may play a complementary role to investigate unknown leptoquark properties.

Testing Deca-Tev Unified Compositeness At The 4 Tev \Mu_+\Mu_-Colliders, Vasily V. Kabachenko, Yury F. Pirogov

Turkish Journal of Physics

In the framework of the unified compositeness of leptons, quarks and Higgs bosons, the hidden local symmetry $\hat H_{loc}=SU(2)_L\times U(1)_Y$ with the heavy composite vector bosons, in addition to the SM gauge bosons, is briefly described. Supplementary hypothesis of the vector boson dominance (VBD) of the SM gauge interactions is considered. It is argued that this should produce the universal dominant residual interactions of the SM composite particles, i.e., all of the fermions and Higgs bosons. Restrictions on the universal residual fermion-fermion, fermion-boson and boson-boson interactions due to the VBD are investigated. Manifestations of the residual interactions at the 4~TeV …

Interaction Region And Luminosity Limitations For Thetesla/Hera E/P Collider, R. Brinkmann

Turkish Journal of Physics

No abstract provided.

Effects Of Curing Temperature On The Leachability Of Lead Undergoing Solidification/Stabilization With Cement, Michael A. Janusa

Faculty Publications

Curing temperature was found to dramatically affect the amount of waste leached from a solidified waste/cement matrix between 2 and 40°C. Using lead nitrate as a model waste, samples cured for 7,14, and 28 days at a cure temperature of 40°C leached very little lead (1-3 mg/liter), while at a cure temperature of 2°C samples leached approximately 25 times more lead (20-90 mg/liter). The results indicate that curing temperature is a very crucial variable to consider when solidifying waste with cement if maximum stabilization is to be achieved.

Effects Of Particle Size And Contact Time On The Reliability Of Toxicity Characteristic Leaching Procedure For Solidified/Stabilized Waste, Michael A. Janusa

Faculty Publications

Inconsistency in leaching results using the Toxicity Characteristic Leaching Procedure (TCLP)indicates that the procedure should contain specific guidance with respect to the following parameters: ( 1 ) minimum particle size, (2) contact time limit between leachant and waste. Experimental datas how that there is approximately a 50% decrease in the amount of waste leached when a minimum particle size of 8 mm is applied. Results indicate that as the contact time between leachant and waste increases, the amount of waste leached increases drastically. The results suggest that restrictions should be set on these two parameters for TCLP results to be …

Palladium-Catalyzed Carboxylation Of Allyl Stannanes And Carboxylative Coupling Of Allyl Stannanes And Allyl Halides [Abstract], Russell J. Franks

Faculty Publications

The reaction of allyl stannanes with CO₂ to form stannyl carboxylates (esters) is catalyzed by Pd(PR₃)₄ complexes. Thus, R₃SnCH₂CH=CH₂ [R=Me and Ph]are converted to R₃SnO₂ CCH₂CH=CH₂ and R₃SnO₂CCH=CHCH₃ under 33 atm of CO₂ (70°C, THF) in moderate to excellent yield in the presence of 8 mol% Pd(PPh₃)₄ ; polycarboxylation of diallyldibutyltin and tetraallyltin also is effected, producing the respective di- and tetracarboxylates, Bu₂Sn(O₂CCH₂CH=CH₂)₂ and Sn(O₂CCH …

Tools For Cognition: Student Free Access To Manipulative Materials In Controlversus Autonomy-Oriented Middle Grades Teachers’ Classrooms, Patricia S. Moyer-Packenham, Gail M. Jones

Teacher Education and Leadership Faculty Publications

This study investigated how middle grades students provided with free access to manipulative materials use these mathematical tools in classrooms where their teachers are identified as Control-Oriented and Autonomy-Oriented. Also of interest in this investigation was how Control-Oriented and Autonomy-Oriented teachers administered the free access treatment in their classrooms. A Pre -- Post -1 Post -2 design was used with two treatments. During Treatment 1, teachers used the manipulatives for mathematics instruction using the strategies learned in the summer professional development workshop. During Treatment 2, teachers provided students with free access to the manipulative materials. Results indicated teachers' control orientations--control …

Self Study Report, University Of Missouri-St. Louis

UMSL Accreditation

Prepared for The Commission on Institutions of Higher Education of the North Central Association of Colleges and Schools

National-Louis University Graduate Catalog, 1998-2000, National-Louis University

National Louis University Course Catalogs

Graduate catalog for the 1998-2000 school year. Contains campus information, as well as program information and course descriptions.

Endangered And Threatened Animals Of Utah, Terry Messmer, Marilet Zablan, Boyde Blackwell, Athena Menses, Frank Howe, Leo Lentsch, Richard Drake

All Archived Publications

No abstract provided.

Eastern Alumnus Vol. 51 No. 1 (Winter 1998), Eastern Illinois University Alumni Association

Eastern Alumnus Volume 51 (1998)

Illinois Board of Higher Education Recommends Largest Budget Increase for Eastern; Foundation News: Alumna Contributes $500,000 for Scholarships at Eastern; Campus News: Reunion Planned for 1978 Champion Football Team; Alumni Association: Five Alumni Award Recipients Honored; etc.

January 26, 1998, College Of Education And Professional Studies Curriculum Committee

Curriculum Committee

No abstract provided.

December 8, 1998, Council On Teacher Education

Minutes

No abstract provided.

Total Coal Thickness Of The Lower Elkhorn Coal In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, William M. Andrews Jr.

Map and Chart--KGS

This map is one of a series that shows the regional characteristics of the Lower Elkhorn coal. The maps were prepared as part of the U.S. Geological Surveys National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. The Lower Elkhorn coal is one of the leading producers in the state of Kentucky and has, in some areas, a reputation as an excellent metallurgical-grade coal. It is known locally as the Pond Creek, Imboden, Path Fork, Blue Gem, Straight Creek, Bruin, or Vires coal bed. This …

1998 Annual Report, Library Services

Annual Reports

No abstract provided.

Eastern Illinois University Undergraduate Catalog 1998 - 1999, Eastern Illinois University

Eastern Illinois Catalog Bulletins

This Catalog lists available courses for the 1998-1999 term.

Spatial Estimates For Stochastic Flows In Euclidean Space, Salah-Eldin A. Mohammed, Michael K. R. Scheutzow

Articles and Preprints

We study the behavior for large |x| of Kunita-type stochastic flows φ(t, ω, x) on R^d, driven by continuous spatial semimartingales. For this class of flows we prove new spatial estimates for large |x|, under very mild regularity conditions on the driving semimartingale random field. It is expected that the results would be of interest for the theory of stochastic flows on noncompact manifolds as well as in the study of nonlinear filtering, stochastic functional and partial differential equations. Some examples and counterexamples are given.

Stochastic Differential Systems With Memory: Theory, Examples And Applications, Salah-Eldin A. Mohammed

Articles and Preprints

The purpose of this article is to introduce the reader to certain aspects of stochastic differential systems, whose evolution depends on the past history of the state.

Chapter I begins with simple motivating examples. These include the noisy feedback loop, the logistic time-lag model with Gaussian noise , and the classical ``heat-bath" model of R. Kubo , modeling the motion of a ``large" molecule in a viscous fluid. These examples are embedded in a general class of stochastic functional differential equations (sfde's). We then establish pathwise existence and uniqueness of solutions to these classes of sfde's under local Lipschitz and …

Alps: A Logic For Program Synthesis (Motivated By Fuzzy Logic), Daniel E. Cooke, Vladik Kreinovich, Scott A. Starks

Departmental Technical Reports (CS)

One of the typical problems in engineering and scientific applications is as follows: we know the values x1,...,xn of some quantities, we are interested in the values of some other quantities y1,...,ym, and we know the relationships between xi, yj, and, maybe, some auxiliary physical quantities z1,...,zk. For example, we may know an algorithm to compute y2 from x_1, x3, and y1; we may also know an equation F(x1,x2,y1)=0 that relates these values, etc. The question is: can we compute the values of yj, and, if we can, how to do it?

At first glance, this is a problem of …

Rollins College Brevard Campus, Rollins College

Text Materials of Central Florida

Rollins College catalogue with list of faculty and students and courses by department.

Unrelieved Pain And Distress In Animals: An Analysis Of Usda Data On Experimental Procedures, Martin Stephens, Philip Mendoza, Adrianna Weaver, Tamara Hamilton

Experimentation Collection

Pain and distress are core issues in the field of animal experimentation and in the controversy that surrounds it. We sought to add to the empirical base of the literature on pain and distress by examining government data on experimental procedures that caused unrelieved pain and distress (UPAD) in animals. Of the species regulated by the U.S. Department of Agriculture (USDA), most of the approximately 100,000 animals subjected to UP AD during the year analyzed (1992) were guinea pigs and hamsters. Most of these animals were used in industry laboratories for various testing procedures, primarily vaccine potency testing. We discuss …

Further Properties Of An Extremal Set Of Uniqueness, David E. Grow, Matt Insall

Mathematics and Statistics Faculty Research & Creative Works

Consider the circle group T = R mod 2_ as the interval [0, 1). Then each x 2 T has a binary expansion: x =P1 k=1 xk2−k where each xk is 0 or 1. Let S be the set of x with a binary expansionsuch that the number of 1's does not exceed the number of the leading zeros by more than one. The authors prove that the countable compact set S cannot be expressed as the union of a finite number of Dirichlet sets.

University Of Northern Iowa Baseball 1998, University Of Northern Iowa

Athletics Media Guides

Contents:

Contents/General information --1
Media outlets/Media relations --2
Head Coach Dave Schrage --4-5
Assistant Coaches --6
1998 Outlook --7-9
Brickman , Briggeman, Chalupsky --10
Chamberlain, Dunham, Ellwanger, Gill --11
Grier, Hoey, Houdeshell --12
Hunter, Jacobs, Kegler, Kjeldson --13
Lubach, McGuire, Moore, Riffle --14
Rima, Sabers, Schirmer --15
Sobkowiak, Vrba, Waller, Woodin --16
Brunner, Friedman, Heefner, Martin, Price, Spencer --17
Numerical roster/Pronounciation guide --18
1997 Review --20
1997 Game-by-game results --21
1997 Individual statistics --22
1997 Missouri Valley results/ Honors --23
Missouri Valley Conference --24
Missouri Valley opponents --26-27
Non-conference opponents --28-30
Single-season team records --32
Single-season individual records --33
Career …

Photoadaptive Response During The Development Of A Coastal Antarctic Diatom Bloom And Relationship To Water Column Stability, Mark A. Moline

Biological Sciences

The ratio of the xanthophyll pigments diadinoxanthin and diatoxanthin to chlorophyll a [(DD + DT): Chl a] was used as a photoadaptive index during the development of a large Antarctic diatom bloom. This index was found to track fluctuations in the incident solar irradiance and the in situ light field over a 3-order-magnitude change in the water column biomass. Depth profiles of the (DD + DT): Chl a ratio showed that the upper mixed layer, assessed by physical data, was in fact stable over the course of the month. Diel experiments conducted over the same period showed a delayed …

Postfire Succession And Disturbance Interactions On An Intermountain Subalpine Spruce-Fir Forest, Michael J. Jenkins, Christopher Dicus, Elizabeth G. Hebertson

Natural Resources Management and Environmental Sciences

Four general postfire successional pathways leading to a climax Engelmann spruce (Picea engelmmlilii Parry)-subalpine fir (Abies /asiocarpa [Hook] Nutt.) forest operate on the T.W. Daniel Experimental Forest in northern Utah. Depending on the successional pathway followed. reestablishment of the prefire climax forest will take 200 to 400 years or more due to a rarity of extreme burning conditions. During the long period between catastrophic stand-replacing fires, a variety of other natural disturbances contribute to the varying structure and composition of vegetation and the fuel mosaic in internountain subalpine spruce-fir forests. Disturbances may range from chronic and small scale …