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Ecological Determination Of The Hour Of Nest Opening By An Ant, A. Dwight Smith

Loma Linda University Electronic Theses, Dissertations & Projects

The timing of daily opening of the nest entrance by the red harvester ant Popnomyrmex californicus was studied during all four seasons. Multiple regression analysis of several , environmental variables shows that the variation from day to day in mean opening time can be attributed to temperature differences, with the time that a given temperature was reached being the most important single variable for the autumn days studied. An equation incorporating this and the minimum temperature was sufficient to specify the mean opening time to within a few minutes. For the spring days, it was necessary to combine sunrise time …

"The Population Explosion And Ecology", Paul R. Ehrlich

Special Collections: Oregon Public Speakers

No abstract provided.

South Dakota Farm And Home Research: 81st Annual Report To South Dakotans (Fall 1968), Agricultural Experiment Station, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Contents
New Look in Research [p] 2
Three New Institutes [p] 3
Agricultural Engineering [p] 4
Agronomy [p] 7
Animal Science [p] 12
Bacteriology [p] 18
Botany-Biology [p] 21
Dairy Science [p] 22
Economics [p] 24
Entomology-Zoology [p] 27
Home Economics [p] 30
Horticulture-Forestry [p] 32
Plant Pathology [p] 34
Rural Sociology [p] 39
Station Biochemistry [p] 44
Veterinary Science [p] 45
Wildlife Management [p] 46
Activities at a Glance [p] 50
Publications [p] 51
Advisory Groups [p] 57
Staff [p] 58
Financial Statement [p] 59
Research Sidelights [p] back cover

Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration

Publications (WR)

This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.

Zoonotic Diseases In The Changing Arctic, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Compatible with the biotic uniformity of northern regions, the occurrence of certain organisms which cause zoonotic diseases is general throughout the Arctic. In the past, most frequently affected by such diseases have been aboriginal peoples whose way of life involved encroachment upon naturally occurring parasite-host assemblages. Now, as changes take place in socioeconomic conditions in the Arctic, the importance of zoonotic diseases as a cause of morbidity may lessen among such peoples, but on the other hand, more nonaborigines may be affected. Although my remarks relate mainly to Alaska, again the biotic uniformity of the North seems to have its …

Further Comments And Experience With Bio-Medical Data Processing, Wilbur R. Mccrum

Henry Ford Hospital Medical Journal

Experience with computers proves that "mechanical minds" are unable to provide clinically-useful answers without careful human judgments.

A Case Of Renal Thrombotic Thrombocytopenic Purpura With Comments On Coagulation And Immunofluorescent Studies, Sue A. Mccutcheon, Clarence E. Rupe, Marion I. Barnhart, Gerald Fine

Henry Ford Hospital Medical Journal

Illustrative material in exposition of the renal pathology and discussion of the data make this interesting case report useful to the physician faced with a pentad of symptoms.

The Psychiatric Referral, Hans Vonbrauchitsch

Henry Ford Hospital Medical Journal

Some useful guidelines on when and how to refer patients for psychiatric care.

A Surgical Correlator, Philip C. Hessburg

Henry Ford Hospital Medical Journal

No abstract provided.

In-Vitro Activity Of Lysostaphin: Bioassay In Serum, Dolores N. Jones, Edward L. Quinn, Frank Cox

Henry Ford Hospital Medical Journal

A timely report of a laboratory experiment to determine dosage of a new drug.

Publications Of The Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

The Prairie Naturalist Volume 1, No. 3. September, 1969

The Prairie Naturalist

EDITORIAL: A VOICE FOR CONSERVATION ▪ Paul B. Kannowski

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1968 ▪ Robert N. Randall

SOME ENVIRONMENTAL MANAGEMENT PROBLEMS AND PROPOSED SOLUTIONS ▪ Laurence R. Jahn

SOME PLANTS OF WESTERN MINNESOTA ▪ O. A. Stevens

MORTALITY OF MIGRATORY BIRDS AT GRAND FORKS, NORTH DAKOTA FOLLOWING A MOSQUITO CONTROL OPERATION IN MAY, 1969 ▪ Robert W. Seabloom, Lewis W. Oring and James R. Reilly

NESTING OF THE UPLAND PLOVER ON THE MISSOURI COTEAU ▪ K. F. Higgins, H. F. Duebbert and R. B. Oetting

NOTE

Albino sparrows discovered at Hazen, North Dakota ▪ Larry L. Kruckenberg and …

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Electrical Conversion Of Atrial Fibrillation: Clinical Experience In 185 Cases With Long-Term Results, Remigio Garcia, Klaus F. Lang, Ellet H. Drake, John W. Keyes

Henry Ford Hospital Medical Journal

The current enthusiasm for indiscriminate use of electrical conversion of atrial fibrillation may be tempered somewhat by this realistic, straightforward and honest report of local experience.

X-Ray Diffraction Powder Data For Steroids: Supplement Ix, Jonathan Parsons, Murray L. Polk, William T. Beher

Henry Ford Hospital Medical Journal

This supplement continues a series of publications which began with a separate section, in the December, 1958 issue. All supplements are listed in the references.

Chiasmatic Syndrome: Clinical Pathological Conference, Jose Bebin, Robert S. Knighton

Henry Ford Hospital Medical Journal

An elderly patient with an unusual cause of Chiasmatic Syndrome is the subject of a CPC which presents the differential diagnosis in detail.

Hfh In The News

Henry Ford Hospital Medical Journal

No abstract provided.

Homotransplantation Of The Heart: A Synopsis, Rodman E. Taber

Henry Ford Hospital Medical Journal

Recent activity by others in heart transplantation makes this review of some 60 years of scientific experiment of timely interest. Present obstacles and future goals are cited.

New Computer Methods For Protein Crystallography, Martin Zwick

Complex Systems Faculty Publications and Presentations

New Computer Methods for Protein Crystallography, by Martin Zwick. Submitted to the Department of Biology on 30 August 1968 in partial fulfillment of the requirements for the degree of Doctor of Philosophy. The section, "MYOGLOBIN REFINEMENT," describes the fitting of an idealized polypeptide chain to a set of approximate backbone coordinates for the protein, sperm whale myoglobin. This procedure refines the structure by imposing upon it known bond distances and angles, and simultaneously derives a representation of the polypeptide conformation in terms of the values of the rotation angles about its single bonds. The overall rms and mean deviation between …

Complementarity Between The Deoxyribonucleic Acid Of Bacteriophage P4/2 And That Of Its Naturally Lysogenic Host Salmonella Potsdam Strain 4, Londa Liseli Schmidt

Loma Linda University Electronic Theses, Dissertations & Projects

Complementarity studies were conducted between bacteriophage P4/2 DNA and the DNAs of its naturally lysogenic host Salmonella potsdam strain 4 (SP4) and its sensitive host Salmonella potsdam strain 2 (SP2). Calf thymus DNA was used as a control.

Nitrocellulose membranes were used to adsorb varying concentrations of unlabeled DNA, using P4/2 DNA, SP4 DNA, SP2 DNA, and calf thymus DNA. A constant amount of P³² -labeled P4/2 DNA was added to each membrane and the hybrids were allowed to form. After thorough rinsing to get rid of unbound labeled DNA, radioactivity of the samples was read in a liquid …

The Transfer Of Hydrogen In The Reduction Of Progesterone, William H. Kersey

Loma Linda University Electronic Theses, Dissertations & Projects

Experimental female rats were given daily injections of synthetic estrogens for six months. The effect on rat ovarian 20α-OH-SDH was not definitive. Diethylstilbestrol and 17α-ethynylestradiol caused a significant drop in activity as compared with controls while mestranol caused a slight increase in activity. A synthetic progestin, medroxyprogesterone, had no apparent effect on the activity of the enzyme.

Rat ovarian 20α-OH-SDH was purified fivefold by ammonium sulfate fractionation and chromatography on DEAE-cellulose.

The homogeneity of the enzyme was checked by means of disc gel electrophoresis. At pH 8.2 no significant contamination appeared in the electrophoretic pattern, but at pH 9.0 five …

Relationship Between Protein And Ribonucleic Acid Synthesis During Outgrowth Of Spores Of Bacillus Cereus, S. Rodenberg, W. Steinberg, J. Piper, Kenneth W. Nickerson, J. Vary, R. Epstein, H.O. Halvorson

Papers in Microbiology

The rate of protein and ribonucleic acid (RNA) synthesis was examined during the outgrowth of spores of Bacillus cereus T in a chemically defined medium. RNA synthesis started 2.5 min after the initiation of germination, and protein synthesis after 4 min. Addition of a complete amino acid supplement and uracil supported high rates of RNA and protein synthesis throughout outgrowth. To determine the relationship between the rate of protein (k) and RNA synthesis, the kinetics of formation of various classes of RNA were followed during outgrowth. Ribosomal RNA (rRNA) comprised a relatively constant fraction of the total RNA …

The Cat Flea, Ctenocephalides Felis, As A Potential Vector Of Trypanosoma Lewisi, Robert Patrick Belihar

Theses and Dissertations

The first hemoflagellate was discovered by Valentine in 1841; two years later Gruby established the genus Trypanosoma for a flagel-late in the blood of frogs, and in 1879 Lewis in India described Try-panosoma lewisi Kent of the rat (Belding, 1965:141).

Some Phage Associated Properties In Salmonella Potsdam, Thomas B. Seifert

Loma Linda University Electronic Theses, Dissertations & Projects

The non-lysogenic strain and several lysogenic strains of S. potsdam were tested biochemically and antigenically to detect any possible phage related property.

Fermentation reactions and citrate utilization tests were identical for all strains.

Tubes agglutination tests showed the non-lysogenic and lysogenized strains of SP2-S to be similar, and different from the naturally lysogenic strains SP3, SP4, SP9, and SP10. Absorption tests confirmed the SP2-s strains, either non-lysogenic or lysogenized, to possess an additional antigen SP3 and SP4 did not possess. SP9 and SP10 may contain small amounts of this antigen. From variation may explain the antigenic difference between these strains. …

Population Dynamics Of Peromyscus Leucopus, Maxwell S. Sanders Jr.

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Science and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Maxwell S. Sanders Jr. in July of 1968.

South Dakota Farm And Home Research, Agricultural Experiment Station, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Contents
Research on Display [p] 2
Beef Production from Irrigated Pastures [p] 4
The Role of Cooperatives in Marketing South Dakota Milk [p] 7
Adding Antibiotics to Milk for Dairy Calves Raised in Outdoor Hutches [p] 10 Sudan Hybrids as Supplemental Forage for Dairy Cattle [p] 14
Farm Financial Management [p] 19
Irrigated Trees Planted Near Big Bend Dam [p] 22
An Outdoor Lab for Comparing Your Range [p] 25
Extending the Winter Wheat Belt [p] 26
Long Span Fencing [p] 28
They’re Trying Long Span [p] 30
Field Day at Norbeck [p] outside back

Louisiana Agriculture Magazine, Summer 1968, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

The Effect Of Puromycin On Protein Synthesis Of Cell Free Systems From Mesophilic And Thermophilic Bacteria, Philip Y. Shen

Masters Theses

No abstract provided.

End Matter, Vol. 9 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Publications Of The Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.