Physical Sciences and Mathematics Commons^™

La Formation De Karabayir, Base De La Transgression Miocene Dans La Region De Korkuteli̇ (Departement D'Antalya-Turquie), Lithothamnium Pseudoramossissimum, Nouvelle Espece D'Algue Rouge De La Formation De Karabayir, Andre Poisson, Alain-François Poignant

Bulletin of the Mineral Research and Exploration

No abstract provided.

Deni̇zli̇ Bölgesi̇ Neojeni̇ni̇n Paleontoloji̇k Ve Strati̇grafi̇k Etüdü*, Güler Taner

Bulletin of the Mineral Research and Exploration

No abstract provided.

Tektoni̇k , Sözlük , Eklem , İtki̇ , Tectoni̇cs, Glossary, Joi̇nts, Thrust, İhsan Keti̇n

Bulletin of the Mineral Research and Exploration

No abstract provided.

Sur Une Nouvelle Espece De Colveraia Klinghardt Et Une Nouvelle Sous-Espece De Joufia Boehm En Turquie, Necdet Karacabey

Bulletin of the Mineral Research and Exploration

No abstract provided.

Doğu Karadeni̇z Bölgesi̇ Gi̇resun İli̇ Dahi̇li̇ndeki̇ Bazi Bakir-Kurşunçi̇nko Madenleri̇ni̇n İz Elementler Yönünden Önemi̇, Ethem Acar

Bulletin of the Mineral Research and Exploration

No abstract provided.

Prof. Dr. İ. Keti̇n'İn Eleşti̇ri̇si̇ne Cevap, İ. Enver Altinli

Bulletin of the Mineral Research and Exploration

No abstract provided.

Tree Structures Construction Using Hit Ratios, S. B. Yao

Department of Computer Science Technical Reports

No abstract provided.

Molecular Model For Ice Clusters In A Supersaturated Vapor, Barbara N. Hale, P. L. M. Plummer

Physics Faculty Research & Creative Works

A molecular model previously applied to prenucleation water clusters is used to examine ice I_h, embryos. The canonical partition function is evaluated for clusters having from 6 to 64 water molecules. The intermolecular vibrational free energies are extrapolated to clusters containing up to 120 molecules and free energies of formation, nucleation rates, and critical supersaturation ratios are calculated and compared with experiment. For the clusters studied, the ice I_h structure appears to be much less stable at all temperatures than the more spherical clathratelike cluster.

Oer For Mixed Neutrons And Γ Rays, Robert Katz, S. C. Sharma

Robert Katz Publications

A formula for the OER in a mixed field of neutrons and gamma rays (Hall, 1972a; 1972b) is given .... Our results, calculated from track structure theory (Katz and Sharma, 1973) and secondary particle-energy spectra in tissue from these neutrons (Caswell and Coyne, 1973; Dennis, 1972) are within 5 per cent of the values of O_mix found from the Hall formula, when that formula is supplied with calculated values of R_n, O_n, and O_γ, at appropriate survival levels. Our calculations suggest that the Hall formula may be used with confidence for neutrons of …

Repeatable Testing-A Tool For Learning Physics, David E. Golden, Robert Fuller, Donald D. Jensen

Robert G. Fuller Publications

Physics courses have traditionally used one-chance-only examinations as a probe to tell the professor how much physics each student has learned, with the result that physics examinations have been a common cause of anxiety among undergraduates.

Repeatable equivalent examinations, on the other hand, offer an alternative testing procedure which underscores material not mastered on the first examination and then allows remedial study of this material for the next examination. Furthermore, the thought that it will be possible to have another try at the examination greatly decreases the anxiety associated with examinations. While repeatable examinations are routinely used in Keller-plan courses, …

Huxley Humus, 1974, Volume 04, Issue 03, Eric Bowen, Huxley College Of The Environment, Western Washington University

Historical Collection of Huxley Newsletters

No abstract provided.

Second-Order Raman Scattering In Alkali Fluoride Crystals, S. L. Cunningham, T. P. Sharma, Sitaram Jaswal, M. Hass, John R. Hardy

John R. Hardy Papers

We present theoretical and experimental second-order Raman spectra for NaF, KF, RbF, and CsF. The theoretical calculation follows the formalism of Born and Bradburn. For the lattice-dynamic calculation we use the deformation-dipole model and present comparisons with measured dispersion curves. For the polarizability calculation, we retain all eight first-neighbor and all thirty second-neighbor polarizability coefficients. We find that, in addition to all of the first-neighbor coefficients, only three of the second-neighbor coefficients are needed to obtain good agreement between the calculated and observed spectra both as regards peak positions and over-all shape. Comparison with other types of calculations are made.

Deduction Of Asymptotic Steinmann Relations From The Regge Hypothesis, Paul Finkler, C. Edward Jones, M. Misheloff

Paul Finkler Papers

The analytic structure of the double-Regge vertex, which has previously been obtained from the Steinmann relation, is derived by using a natural generalization of the Regge hypothesis.

Huxley Humus, 1974, Volume 04, Issue 01, Eric Bowen, Huxley College Of The Environment, Western Washington University

Historical Collection of Huxley Newsletters

No abstract provided.

Water Current, Volume 6, No. 10, October 1974

Water Current Newsletter

From the Desk of the Director
Thanks Don for a Job Well Done
Deadline for Research Proposals
NWRRI Hosts Research in Action Conference
Learn About Nebraska's Water Quality
NWRRI Advisory Committee Meets
Director Lectures at Maine
Hydrologist Position Available
Forestry Chairman Sought
Wise Water Use Advocated
MRBC Director Sees Adequate Water for Planned Development
MRBC Committee on Energy and Environment
Energy Research and Development Adminstration Established
EPA Reports on Future Wastewater Treatment Plant Needs
New Criteria for EPA Grants
"Second America" Needs Discussed by USGS
Research Review: Disposal of Cattle Feedlot Runoff on Agricultural Land

Computer Sheets, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Lower Androscoggin, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Upper Androscoggin River, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Solid Phase Peptide Synthesis, John Gibson

Honors Theses

Solid phase peptide synthesis is a relatively new biochemical process for polymerization of amino acids. It involves the selection of amino acids, blocking groups, and resins. This procedure was first investigated by R. B. Merrifield in an attempt to simplify previous methods of peptide synthesis. Since other methods involved amino acids, peptide esters, and diketopiperazines, peptide synthesis had been limited by amino acid selection and a host of technical problems. Solid phase synthesis alleviates many of these difficulties and limitations by supplying a faster and simpler stepwise addition of a wide variety of naturally occurring and synthetically prepared amino acids …

Matrix Fields Over The Integers Modulo M, Robert M. Mcconnel, Jacob T. B. Beard Jr.

Mathematics Technical Papers

Let Zm denote the ring of integers modulo m and let [see pdf for notation] denote the complete ring of all [see pdf for notation] matrices over Zm under the usual matrix addition and multiplication. The primary purposes of this paper are to characterize and count all subfields of the ring [see pdf for notation] . Related results are given on field extensions in [see pdf for notation] of subfields of [see pdf for notation] . Partial results on subfields of [see pdf for notation] when R is an arbitrary finite commutative ring with identity are also given. Having basic …

Quantitative And Qualitative Seasonal Analysis Of The Surface Zooplankton Of Magothy Bay, Virginia, Malcom E. Browne

OES Theses and Dissertations

No abstract provided.

The Thermal And Photolytic Rearrangements Of Isatoic Acid Diazide, Ana Alejandre Ciereszko

Chemistry & Biochemistry Theses & Dissertations

The primary objective of this research has been the thermolysis and photolysis of isatoic acid diazide 1. Thermolysis in low boiling solvents produced the acylazido benzimidazolone 10, while refluxing in high boiling solvents gave rise to the imidazoindazoline 31, presumably via Curtius rearrangements.

Photolysis of the diazide in methylene chloride gave rise to two photo products, 10 and 31, while photolysis in tetrahydrofuran produced only 31.

A study of the spectral and chemical characteristics of these products have been carried out.

Suspended Sediments Near Pier 12 Norfolk Navy Base On 26 June And 15 September, 1973, Evon P. Ruzecki, R. Ayres

Reports

Results of two suspended sediment studies near Norfolk Navy Base Pier 12 are given. The studies were conducted during one tidal cycle on both 26 June and 15 September 1973. The following parameters were measured at five stations in the vicinity of the pier: suspended sediment water temperature, salinity and density current speed and direction iv

The Purification And Characterization Of Methylmalonyl Coa Mutase From Bovine Brain, Damon Martin

Theses and Dissertations

Methylmalonyl CoA mutase has been purified over 2300-fold from bovine brain using fractional precipitation, ion exchange resins, and gel filtration procedures. The crude extract had an equal mixture of mutase in the halo- and apoenzyme form. After the final purification step the ratio had changed to 86% holo-enzyme and 14% apoenzyme. The mutase enzyme had a pH optimum of 7. 0 in Tris-HCI buffer. The Km values for L-methylmalonyl CoA and succinyl CoA were 7.7 x 10^-4 M and 1.8 x 10^-4 M respectively. The equiIibrium constant in the direction of succinyl CoA formation was 19. Inhibition with N-ethylmalei-mide was …

Characterization Of Zinc-Containing Metalloproteins By Resonance Raman Spectroscopy, Robert Edward Derry

Dissertations and Theses

Cobalt-substituted carboxypeptidase and carbonic anhydrase were chosen as candidates for resonance Raman spectroscopy because they possess visible absorption due to the Co(II)-protein complex. However, no evidence for resonance-enhanced peaks due to the cobalt-containing chromophore was found with laser excitation near the visible absorption bands (514.5 nm) or closer to the ultraviolet absorption bands (457.9nm).

Arsanilazocarboxypeptidase and model azotyrosine compounds were selected for a Raman spectroscopic investigation because they have intense absorption bands in the visible region. All of these substances yielded similar resonance Raman spectra. Although there was no evidence for specific zinc-ligand vibrations, shifts in vibrational frequencies of the …

Water Current, Volume 6, No. 9, September 1974

Water Current Newsletter

From the Desk of the Director
Deadlines for Research Proposals
NWRRI Hosts Research in Action Conference
Opening: River Basin Planner
Hal Schroeder Speaks at ICE/WRC Conference
$1.6 Billion for Nebraska Sewage Needs
FY 1975 Title II Projects Announced
Discount Rate for Water Resources Projects Increases
Water Gun: Toy or Tool?
EPA Administrator Comments on Chlorine
Completed Water Projects Ignored
Senator Defends Current Water Policies
Rail-Barge System May Join Hands
Urban Water Pollution
New General Counsel of WRC
Research Review: Recharge Simulation Model

Sign Of The Electric Field Gradient Tensor And The Nature Of The Low Temperature Phase Transition In Fe(Pyridine)2Cl2, W. M. Reiff, Richard B. Frankel, B. F. Little, Gary J. Long

Physics

Mossbauer spectra of Fe(pyridine)₂Cl₂ have been determined in large external magnetic fields at room temperature and 78 K. The principal component of the electric field gradient tensor is positive and consistent with an electron in the d_xy orbital. The results indicate no change in orbital ground state for the low temperature phase transition of this material.

Second Row Molecular Orbital Calculations. Geometries, Internal Rotation Barriers, And Dipole Moments Of Methylsilane, Disilane, Methyl Mercaptan, And Methyl Phosphine, Mark S. Gordon, Loren Neubauer

Mark S. Gordon

The internal rotation barriers of methylsilane, methyl mercaptan, methylphosphine, and disilane are calculated with and without complete geometry optimization in three different CNDO parametrizations. It is found that Santry's recent reparametrization is most reliable for both geometries and barriers and that geminal and bonded interference interactions are more important than those between vicinal atoms for these molecules. None of the parametrizations give reasonable dipole moments.

Terminal Talk - The Wofford Connection - September 1974, Wofford College Computer Center

Terminal Talk

No abstract provided.