Digital Commons Network^™

The Dependence Of Operating System Size Upon Allocatable Resources, Atilla Elci

Department of Computer Science Technical Reports

No abstract provided.

The P-Nitrobenzyl System. Iv. Base-Induced Transformations In P-Nitrobenzyl Chloride, Bromide, Iodide, Tosylate, And Sulfonium Salts, Samir B. Hanna, Paul H. Ruehle

Chemistry Faculty Research & Creative Works

No abstract provided.

Water Current, Volume 7, No. 8, November/December 1975

Water Current Newsletter

From the Desk of the Director
Last Call for Research Proposals
Water Resources Seminar
Title II Award From OWRT
Matching Grant Proposals Submitted to OWRT
OWRC Advisory Council Meets
Water Research in Nebraska
New Interior Secretary Confirmed
WRC Legislation Signed by President Ford
Water Research and Technology Advisory Panel Meeting
Research Review: Application of Enzyme Methods to the Determinination of Pollutants in Water

Virginia Coastal Zone Management Report

William & Mary Environmental Law and Policy Review

No abstract provided.

"The Search For Extra-Terrestrial Life", Donald L. Devincenzi

Special Collections: Oregon Public Speakers

No abstract provided.

An Optimum Symbol-By Symbol Decoding Rule For Linear Codes, Carlos R.P. Hartmann, Luther D. Rudolph

Electrical Engineering and Computer Science - Technical Reports

A decoding rule is presented which minimizes the probability of symbol error over a time-discrete memoryless channel for any linear error-correcting code when the code words are equiprobable. The complexity of this rule varies inversely with code rate, making the technique particularly attractive to high rate codes. Examples are given for both block and convolutional codes.

Synthetic Analogs Of Active Sites Of Iron-Sulfur Proteins: Bis (O-Xylyldithiolato) Ferrate (Iii) Monoanion, A Structurally Unconstrained Model For The Rubredoxin Fe-S4 Unit, R. W. Lane, James A. Ibers, Richard B. Frankel, R. H. Holm

Physics

To complete the set of synthetic analogs of the three recognized types of active sites in iron-sulfur redox proteins, the compound (Et₄N)[Fe((SCH₂)₂C₆H₄)₂], derived from o-xylyl-α,α'-dithiol, has been prepared and its structure has been determined by x-ray diffraction. The bischelate anion contains a near-tetrahedral Fe(III)-S₄ coordination unit with small rhombic distortions and all Fe-S bond distances in the range 2.252-2.279 Å. Its electronic properties have been partially characterized by measurement of electronic absorption, paramagnetic resonance, Mössbauer spectra, and magnetic susceptibility. The analog, as …

The Effect Of Recreational Uses On Vegetation And Soil In The Buffalo Campground, Targhee National Forest, Island Park, Idaho, Susan Daines Foster

Theses and Dissertations

The effect of trampling on vegetation and soil, as a result of recreational pressure, was studied in the Buffalo campground of the Targhee National Forest, Idaho. Site deterioration was most evident in the forty-two year old site. The tree stand had matured, but there were few young trees and tree reproduction had been reduced to ten seedlings per acre for Pinus contorta. Only two shrub species were sampled with a combined population of eight individuals per acre. Most of the grass species had been seeded; forbs provided 20% of the ground cover, 13% was bare ground and 71% litter. The …

Sedimentation And Stratigraphy Of The Mount Rogers Formation, Virginia, Kenneth Morris Blondeau

LSU Historical Dissertations and Theses

The Mount Rogers Formation of southwestern Virginia is a thick, upper Precambrian sequence of interbedded conglomeratic mudstones, rhythmically layered argillites, arkosic sandstones and conglomerates, polymict conglomerates, and associated rhyolitic and latitic flows and pyroclastics. The conglomeratic mudstone consists of unsorted, angular to sub rounded grains, ranging in size from silt up to boulders one meter in diameter, enclosed within a fine-grained hematitic matrix or cement. The rhythmically layered argillite is made up of thin, alternating couplets of light, very fine-grained sandstone or siltstone grading upward into dark red argillite. Many of the couplets contain "outsized" exotic clasts which penetrate and …

Theoretical Study Of Impurity-Induced First-Order Raman Spectra For The Alkali Halides, Arnold Karo, John Hardy

John R. Hardy Papers

A deformation-dipole model with first- and second-neighbor central short-range forces is used as a basis for calculating all symmetry-adapted combinations of eigenvectors (SACEV) necessary for the study of defect vibrations in alkali-halide crystals. As an example of the full set of spectral weight functions, which are tabulated separately, sample results are given for the predicted defect-activated E, Raman spectra for KCl, KI, RbCl, and KBr, assuming no force-constant changes and that the defect is located at a positive-ion site. The results show qualitative agreement with the earlier findings of Harley, Page, and Walker, even though the deformation-dipole model is not …

Theoretical Study Of Impurity-Induced First-Order Raman Spectra For The Alkali Halides, Arnold Karo, John R. Hardy

John R. Hardy Papers

A deformation-dipole model with first- and second-neighbor central short-range forces is used as a basis for calculating all symmetry-adapted combinations of eigenvectors (SACEV) necessary for the study of defect vibrations in alkali-halide crystals. As an example of the full set of spectral weight functions, which are tabulated separately, sample results are given for the predicted defect-activated E, Raman spectra for KC1, KI, RbCl, and KBr, assuming no force-constant changes and that the defect is located at a positive-ion site. The results show qualitative agreement with the earlier findings of Harley, Page, and Walker, even though the deformation-dipole model is not …

Geochemistry Of The Cenozoic Volcanic Rocks Of Ross Island And Vicinity, Antarctica, S. S. Goldich, S. B. Treves, N. H. Suhr, J. S. Stuckless

Department of Earth and Atmospheric Sciences: Faculty Publications

The Cenozoic volcanic rocks of Ross Island and vicinity, Antarctica, are surface flows, tuffs, breccias, and small intrusives. The prominent rock is basanitoid. Alkali-basalt magma reached the surface over an appreciable length of time and was differentiated to produce a rock series: basanitoid → trachybasalt → phonolite. The alkalic, silica-undersaturated rocks are part of a larger petrologic province composed of volcanic centers in a belt nearly 2,000 km long roughly parallel to the Transantarctic Mountains. Two trends of magmatic differentiation are apparent. At depth the fractional crystallization of olivine, clinopyroxene, and opaque oxide minerals, all of which are abundant as …

Some Comments On Correlation-Function Formulas For Polymer Intrinsic Viscosity, Walter H. Stockmayer, Gerald Wilemski, Hiromi Yamakawa, Genzo Tanaka

Physics Faculty Research & Creative Works

No abstract provided.

The Analysis Of Volatile Organic Compounds In The Southern Chesapeake Bay, Virginia By Gas Chromatography/Mass Spectrometry, James D. Haluska

OES Theses and Dissertations

Sea-water samples from the Norfolk, Virginia area were analyzed for trace volatile organic compounds by helium sparging. Contents of the trap were injected into a gas chromatograph/mass spectrometer. Analysis of the trap contents indicated the presence of aliphatic and olef1nic hydrocarbons containing up to six carbon atoms and eight halogenated compounds of up to two carbon atoms in length. The halogenated compounds which were identified were dichlorofluoromethane, trichlorotrifluoroethane, carbon tetrachloride, chloroform, trichloroethane (2 isomers) bromodichloromethane, and chlorotrifluoroethylene. The

relative concentrations of volatile organic compounds generally tended to increase in samples collected from water prone to urban environmental pressures. All eight …

Urbanization And Environmental Change In Lynnhaven Estuary, Don W. Oswalt

OES Theses and Dissertations

The very minimal amounts of available urbanization data demonstrate that the number of residential dwellings in the Lynnhaven drainage basin increased sharply in the late 1950’s and early 1960's, and that the 1970 basin population density value of 1981 people per square mile is larger than all the burrough density values, except for the Virginia Beach burrough. Due to a lack of data, only qualitative changes in Lynnhaven’s marine environment can be noted. There is a strong suggestion of an increase in amounts of urban storm water run-off into Lynnhaven since 1937. A considerable amount of siltation has occurred since …

Trace Element Composition Of Stream Sediments An Integrating Factor For Water Quality, Kenneth F. Steele, Harold C. Macdonald, George H. Wagner, William S. Bowen

Arkansas Water Resources Center Technical Reports

Bottom sediments, suspended sediments, and water were sampled along 130 miles of the Buffalo River in northern Arkansas. The water and acid extracts of the suspended sediments and the minus 95 mesh fraction of the bottom sediments were analyzed by atomic absorption spectrometry. All samples were analyzed for Na, K, Mg, Ca, Zn, Cd, Cu, Pb, Fe, Co, Cr, Ni, and Mn. Selected bottom samples also were analyzed by As, Hg, and Zr. Zr was determined by x-ray fluorescence. Li and Sr were determined for selected water and suspended sediment samples. There is a general decrease downstream in Fe, Cu, …

An Evaluation Of The National Sea Grant Program, Christopher B. Llana

Marine Affairs Theses and Major Papers

This paper will discuss the philosophies and management of the Sea Grant program and their effectiveness in meeting the original goals of the program as they were perceived when the National Sea Grant College and Program Act of 1966 were formulated.

Calculation Of Pseudocontact Shifts For Co( Ch30h)5x2+ Complexes, Jerry Goodisman

Chemistry - All Scholarship

In this article, we calculate pseudocontact shifts for tetragonal high-spin Co(I1) complexes using a crystal field model. Calculated results for the dipolar field strength and its variation with temperature are compared with values derived from experimental measurements on complexes of the form Co(CH30H)5X2+. The calculation involves evaluation of the anisotropy of the magnetic susceptibility, and proceeds by the following steps: (a) from the crystal field parameters Dq, Ds, Dt, and B the three orbital wave functions of lowest energy are found. (b) The effect of spin-orbit coupling over the 12 states (three orbital wave functions coupled with four spin states) …

Performance Appraisal In Hospital Dietary Departments, Mary C. Law

Loma Linda University Electronic Theses, Dissertations & Projects

The specific objectives of this research were to (1) identify the principal characteristics and functions of performance appraisal programs utilized in hospital dietary departments, (2) determine the ten major factors in performance appraisal as indicated by the hospital dietary department directors as well as by dietetic interns and the factors indicated in the review of literature, and (3) develop an evaluation form for performance appraisal of hospital dietary department employees utilizing criteria obtained from (1) and (2).

Three hundred general, short term, nonprofit hospitals were included into the study. Questionnaires were mailed to three hospitals which were classified according to …

Developing A Periodontal Screening Examination, Jeffrey R. Morgulis

Loma Linda University Electronic Theses, Dissertations & Projects

Periodontal disease is the primary cause of tooth loss in the adult, and therefore, early diagnosis of periodontal disease by the general practitioner is important in terms of prevention as well as treatment. The present study was designed to develop a periodontal screening examination which would fulfill the following requirements:

1. It should utilize precise and easily understood criteria.
2. It should take a short period of time.
3. It should enable the practitioner to accurately place patients into various disease categories.
4. It should enable the practitioner to easily and quickly relate these disease categories to treatment.

A "comprehensive" periodontal examination was performed …

Delegation Of Task Functions By Dietitians To Dietetic Technicians, James Lumsden

Loma Linda University Electronic Theses, Dissertations & Projects

Dietetics has been identified as one of the professions in which there is a shortage of qualified personnel. The need to delegate selected task functions to extend professional skills and contain costs has been recognized in many professions faced with a manpower shortage.

This research was done to determine the degree to which dietitians will utilize dietetic technicians in the role proposed by the American Dietetic Association. A questionnaire was the instrument utilized to collect data from the 197 randomly selected hospitals in the continental United States. Task functions identified in the proposed job descriptions for the dietetic technician in …

A Descriptive Study Of Women's Attitudes Towards Obtaining Or Not Obtaining Papanicolaou Smears, Linda J. Shults

Loma Linda University Electronic Theses, Dissertations & Projects

It was the purpose of this study to identify the attitudes of a selected group of women which influenced their participation in Papanicolaou testing. These attitudes were inferred from the reasons women gave for obtaining the test. The subjects were randomly selected from the telephone book of a medium-sized town in Southern California. The 135 women who participated in the telephone interview were considered to be the respondents in the study.

A review of the literature revealed that through the annual use of the Papanicolaou smear, approximately 11,000 deaths every year from uterine and cervical cancer could be prevented, Attitudes …

The Computation And Use Of Optimal Paging Curves, Peter J. Denning

Department of Computer Science Technical Reports

No abstract provided.

Rbe-Dose Relations For Neutrons And Pions, Robert Katz, S. C. Sharma

Robert Katz Publications

RBE-Dose relations have been calculated from cellular radiosensitivity parameters and theoretical particle-energy spectra in tissue, of the secondary particles from neutron and negative pion irradiations. The theoretical results are compared with clinical and radiobiological data for normal tissue, tumors, and cells in culture. Formulae for calculation, cellular parameters, and the needed properties of equivalent “track-segment bombardments” are given, for several mammalian cells irradiated with pions and with neutrons of several energies.

Résumé
Rapports EBR-dose pour neutrons et pions
A partir des paramètres de la radiosensitivité cellulaire et du spectre théorique, dens le tissu, de l’énergie d’atomes secondaires provenant d’irradiations de …

Temperature Dependence Of Magnetoresistance In Ni3al System, Paul D. Hambourger, R. J. Olwert, C. W. Chu

Physics Faculty Publications

The transverse magnetoresistance of stoichiometric and off-stoichiometric polycrystalline samples of the Ni3Al system has been measured over the temperature range 1.2C. The data are in qualitative agreement with the theoretical predictions of Chang et al. based on a model of the magnetoresistance of an itinerant ferromagnet, but the observed magnetoresistance is considerably larger than predicted.

Quadrupole Couplings Of N12 And B12 Implanted In Metal Single-Crystals, Richard C. Haskell, Francis David Corell, Leon Madansky

All HMC Faculty Publications and Research

Measurements have been made of the quadrupole couplings of 12N implanted in single crystals of Be and Mg and of 12B implanted in a single crystal of Zn. A comparison of the 12N couplings in Be and Mg suggests that (i) the final stopping sites of the implanted 12N ions are substitutional sites, i.e., the 12N ions occupy metal-ion lattice positions, and (ii) the 12N ions implanted in Be and Mg have the same charge state and quadrupole shielding factor. A procedure is outlined for deducing Q(12N). The 12B couplings in Zn imply the existence of two inequivalent stopping sites. …

Water Current, Volume 7, No. 5, May 1975

Water Current Newsletter

From the Desk of the Director
Farmers and Irrigators Threatened by Possible Extension of Federal Authority for Disposal of Dredged or Fill Material
Water Research and Education Advisory Committee Established
EPA Strategy Paper Lists 1976 Priorities
Research Review: Pollution of Surface Irrigation Water by Plant Pathogenic Organisms

Binary Nucleation. I. Theory Applied To Water-Ethanol Vapors, Gerald Wilemski

Physics Faculty Research & Creative Works

A quantitative study of nucleation in vapor mixtures of ethanol and water near 273°C is presented. First, Reiss' theory of binary nucleation is reexamined. The theory is modified slightly in order to yield the proper limit for homogeneous nucleation in a one-component system. Moreover, a corrected expression for the equilibrium concentration of mixed clusters is derived. Calculations of the critical vapor activities needed to produce a visible condensate are presented and compared with the results of Flood's cloud chamber experiments. The agreement is only fair, but qualitative accord is found.

Petrology Of The Upper Nounan - Worm Creek Sequence, Upper Cambrian Nounan And St. Charles Formations, Southeast Idaho, Lillian Donley Wakeley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The upper member of the Nounan Formation and the Worm Creek Member of the St. Charles Formation, both late Cambrian in age, were studied in the Bear River Range and the Fish Creek Range in southeast Idaho. Lithology and sedimentary structures of these units were compared with characteristics of similar modern sediments and ancient rocks, to determine the environments of deposition and effects of diagenesis for the interval studied.

On the basis of widely traced marker horizons, the two-member interval is divided into three parts, with parts 1 and 2 comprising the upper member of the Nounan Formation, and part …

Exploratory Sensitivity Analysis Of A Stream Ecosystem Model, Joseph H. Wlosinski

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The framework of a stream ecosystem simulation model is described. Using this framework and data from two different geographical areas, a cold desert stream and a generalized mountain stream, exploratory sensitivity analysis was performed on the model. This was accomplished by qualitatively comparing outputs of a series of simulations in which a different level of a driving variable was used in each simulation. Based on these results, recommendations are made for improving the structure of the model.