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Articles 51511 - 51540 of 52478
Full-Text Articles in Entire DC Network
Fisheries Report No Iv (6) - Report On The Current Status Of Crocodiles In Western Australia, H. Robert Bustard Dr
Fisheries Report No Iv (6) - Report On The Current Status Of Crocodiles In Western Australia, H. Robert Bustard Dr
Fisheries Research Reports
The aim of the survey was fivefold,
(1) to determine the present abundance and composition of saltwater crocodile populations in Western Australia,
(2) to comment on the status of the freshwater crocodile in Western Australia following 7 years of total protection,
(3) to locate study area(s) for detailed work on crocodile biology,
(4) to investigate the feelings of people on the spot (especially shooters or ex-shooters) towards crocodile conservation, and
(5) to investigate law enforcement problems relating to crocodiles
The Ias Bulletin, V3n5, November 1969, Iowa Academy Of Science
The Ias Bulletin, V3n5, November 1969, Iowa Academy Of Science
IAS Bulletin
In this issue:
--- Officers, Directors, and Section Charimen, 1969-1970
--- Spring Program Planning
--- Board Meeting Bombshell
--- What About the Proceedings Format?
--- Speakers' Bureau Project Dropped
--- Visiting Scientist Program Still Alive
--- Excellence in Teaching Awards
--- Long Range Program Planning in the Biological Sciences
--- Symposium Volume of Archeological Papers Being Prepared
--- Academy Representatives to Attend Academy Conference in Boston
--- Constitution Revision
--- Financial Condition of the Academy
--- Academy Membership is a Bargain
--- News from Other State Academies
--- Membership in the Academy
--- Iowa Academy og Science Visiting Sceintist Program …
Quasilattice Interpretation Of The Thermodynamic Properties Of Mixing Of Binary Alkali-Metal Systems, J. Bevan Ott, J. Rex Goates
Quasilattice Interpretation Of The Thermodynamic Properties Of Mixing Of Binary Alkali-Metal Systems, J. Bevan Ott, J. Rex Goates
Faculty Publications
Quasilattice theory was applied to heats of mixing in the six systems formed from the binary combinations of Na, K, Rb, and Cs. The alkali-metal systems are particularly well suited for a critical test of the quasi-crystalline assumption since the theoretical model for these systems is relatively simple and the thermodynamic data are fairly complex. Very good fits of the heat-of-mixing data were achieved by assuming that the larger atom in the binary system covered multiple sites on the quasilattice. The values of the empirically determined constants appear to fit the physical significance accorded to them by the quasilattice model. …
Bidding For Offshore Oil: Toward An Optimal Strategy, Keith C. Brown
Bidding For Offshore Oil: Toward An Optimal Strategy, Keith C. Brown
Journal of the Graduate Research Center
The outcome of the drilling of a wildcat well on a lease is almost never known precisely at the time the well is drilled. In fact, even a probability density function of the present values of the possible outcomes is typically not known with certainty. But even wildcat wells are not drilled blindly; before a rational entrepreneur undertakes such a project, he must have enough information to convince him that the possibilities of gain are sufficient to justify the drilling costs. Thus, it can be persuasively argued that, although a potential investor may not be able to specify an objective …
The Ias Bulletin, V3n4, September 1969, Iowa Academy Of Science
The Ias Bulletin, V3n4, September 1969, Iowa Academy Of Science
IAS Bulletin
In this issue:
--- Officers, Directors, and Section Chairmen, 1969-1970
--- New Members Since May First
--- Membership by Section Interest
--- Board Meeting Scheduled
--- Geology Monograph "Water Resources of Iowa" to e Available Soon
--- Grant Received from NSF for Junior Academy Work
--- Academies of Science and Science Education
--- Activities of NSRA of Interest to Academy Members
--- Member Wants Critical Analysis of his Trisection
--- All High School Science Teachers in Iowa now on Information Mailing List
--- Several Vacancies Left by the Departure of One Active Member
--- Local Arrangements Named for April 1970 …
A Statistical Study Of Sex Ratio Data From A Sample Of Students At Western Kentucky University, Robert Loyd
A Statistical Study Of Sex Ratio Data From A Sample Of Students At Western Kentucky University, Robert Loyd
Masters Theses & Specialist Projects
Information on family size, sex ratio, and sex by order of birth was obtained from a sample of students at Western Kentucky University during the 1968-69 school year. Participants were white Americans coming primarily from Central Kentucky.
Data were obtained on the immediate, maternal, and paternal families from 1,018 students. Sex ratios for the immediate and parental generations were 101.2 and 103.3, respectively. The overall sex ratio for the study was 102.7. These ratios did not differ significantly from he reported secondary sex ratio of 106 in the United States.
Correlation coefficients were computed between the sexes of various children …
The Effects Of Herbicides On Three Soil Inhabiting Blue Green Algal Species, Lee C. Darlington
The Effects Of Herbicides On Three Soil Inhabiting Blue Green Algal Species, Lee C. Darlington
All Master's Theses
The object of this study was to examine the effects of varying concentrations of 2, 4-D, Dalapon, and Tordon on the growth of several nitrogen-fixing blue-green algal species obtained from soil samples and grown under culture conditions in the laboratory.
A Study Of Folic Acid Dependent Reactions In Bovine Brain, Dillard Spencer Broderick
A Study Of Folic Acid Dependent Reactions In Bovine Brain, Dillard Spencer Broderick
Theses and Dissertations
The enzymatic interconversion of serine to glycine and N5, N10-methylene tetrahydrofolate to N5 -methyl tetrahydrofolate have been studied in a cell-free system derived from bovine brain. A partial purification of serine transhydroxymethylase and N5, N10 -methylene tetrahydrofolate reductase has been achieved by ammonium sulfate fractionation, protamine sulfate fraction, and by various column chromatography procedures. The two enzymes studied catalyze sequentially the reductive transfer of the hydroxymethyl group of serine to the N5 position of tetrahydrofolate forming N5 -methyl tetrahydrofolate. The products of these reactions were assayed by the incorporation of C14 from a one-carbon precursor i.e., L-beta-(C14)-serine, or N5 -methyl …
A Preliminary Investigation Of The Incidence Of Acanthocephalans In Freshwater Fish From Two Similar Streams In Rowan County, Kentucky, Langston D. Smith
A Preliminary Investigation Of The Incidence Of Acanthocephalans In Freshwater Fish From Two Similar Streams In Rowan County, Kentucky, Langston D. Smith
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Langston D. Smith on July 23, 1969.
Ultrasonic Shark Tag Monitoring System Technical Report, Thomas Thorson, Gordon Esterberg, James Johnson
Ultrasonic Shark Tag Monitoring System Technical Report, Thomas Thorson, Gordon Esterberg, James Johnson
School of Biological Sciences: Faculty Publications
Table of Contents:
Introduction
Description of System
Ultrasonic Tag
Ultrasonic Tag Monitor
Hyrdophones
Receiver-Recorder Unit
Receiver
Recorder
Batteries
Operation
Figures
Distribution List
Documentation Control Data – R & D (DD Form 1473)
The Effect Of Removing The Crevicular Epithelium Upon Canine Tooth Replantation, Leon A. Leonard
The Effect Of Removing The Crevicular Epithelium Upon Canine Tooth Replantation, Leon A. Leonard
Loma Linda University Electronic Theses, Dissertations & Projects
The nature of epithelium and the remarkable facility with which it aggressively covers granulation tissue, suggests that removal of the sulcular epithelium surrounding the extraction wound of a tooth to be replanted could promote reattachment of the periodontal tissues at a more nearly ideal coronal level. To investigate this hypothesis twenty mature teeth in five mongrel dogs were experimentally replanted. One half of them were replanted in alveoli around which the crevicular epithelium had been removed, the remaining teeth without creviculoectomy acting as controls. Animals were euthanized at one, two, three, five, and sixteen weeks. After clinical evaluation of the …
Social Structure Of Small Mammal Populations At The National Reactor Testing Station, Idaho, R. Lynn Speth
Social Structure Of Small Mammal Populations At The National Reactor Testing Station, Idaho, R. Lynn Speth
Theses and Dissertations
This investigation examined the social structure of four species of small mammals (Perognathus parvus (Peale), Reithrodontomys megalotis (Baird), Peromyscus maniculatus (Wagner), and Dipodomys ordi (Woodhouse) at the National Reactor Testing Station (NRTS) in Idaho. An understanding of the social structure provides ecological clues concerning the integration of interactions, reproduction, distributions, densities, and diel activities for not only one animal and species, but for a complex of animals interacting with each other.
Measurement And Affect Of Ecologically Significant Factors Within A Thermally-Stratified Lake On Bacterial Utilization Of A Humic Acid, Herbert E. Schmidt
Measurement And Affect Of Ecologically Significant Factors Within A Thermally-Stratified Lake On Bacterial Utilization Of A Humic Acid, Herbert E. Schmidt
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Herbert E. Schmidt on May 19, 1969.
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Ecology and Environment
RISD Landscape Architecture Study to Save Block Island Article from Designer's News, May 19, 1969 student newspaper.
The Ias Bulletin, V3n3, May 1969, Iowa Academy Of Science
The Ias Bulletin, V3n3, May 1969, Iowa Academy Of Science
IAS Bulletin
In this issue:
--- From the Editor
--- Attendance at 81st Session
--- Committee on Ecological Disturbances Continued
--- 1970 Plans Already Underway
--- New Corporate Member
--- Note to Visiting Scientists
--- Another Fall Articulation Conference Planned
--- ISTS Regional Meetings to be Featured in Science Education News
--- New Sections Being Considered
--- Members Urged to Support the Academy through Contributions
--- Fiscal Year Changed
--- Status of the Constitution Revision
--- Nomination of Fellows is in Order
--- What some of the Other State Academies are Doing
--- Newsletter to Have New Format
--- Our New President …
Need For Post-High School Technical Training In Ornamental Horticulture In Davis, Salt Lake, And Utah Counties, Paul Peterson
Need For Post-High School Technical Training In Ornamental Horticulture In Davis, Salt Lake, And Utah Counties, Paul Peterson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The need for a technician training program in Ornamental Horticulture was studied in Davis, Salt Lake and Utah counties utilizing interviews and mailed survey instruments.
The greatest job increase during the next five years is anticipated for nursery workers, landscape helpers and greenhouse workers. The smallest anticipated increase is for florists, floor foreman and nursery technicians.
Skills requiring the highest degree of competency for workers in ornamental horticulture, according to employers, are retail salesmanship, plant identification and disease and insect control.
Courses receiving the highest rating in an ornamental horticulture technician curriculum, as given by owners and managers and by …
Federal Public Land Laws And Policies Relating To Intensive Agriculture, Volume Vi. Working Paper: Probable Effects Of New Cropland On Local And Regional Economies In Western United States, Economics Department
Federal Public Land Laws And Policies Relating To Intensive Agriculture, Volume Vi. Working Paper: Probable Effects Of New Cropland On Local And Regional Economies In Western United States, Economics Department
Economics Research Reports (1969 - 2017)
No abstract provided.
Iowa Junior Academy Of Science: The Thirty-Seventh Convention, April 18-19, 1969, Iowa Academy Of Science
Iowa Junior Academy Of Science: The Thirty-Seventh Convention, April 18-19, 1969, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The Eighty-First Session Of The Iowa Academy Of Science And The Thirty-Seventh Convention Of The Iowa Junior Academy Of Science, April 18-19, 1969, Iowa Academy Of Science
The Eighty-First Session Of The Iowa Academy Of Science And The Thirty-Seventh Convention Of The Iowa Junior Academy Of Science, April 18-19, 1969, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Characterization Of Fiber Fines By Drainage Resistance Analysis, Edward J. Grys
Characterization Of Fiber Fines By Drainage Resistance Analysis, Edward J. Grys
Paper Engineering Senior Theses
This thesis begins by developing a literature background for a variety of pulp characterization methods and relating them to present-day techniques.
Two methods are evaluated and compared with the Canadian Standard Freeness (C.S.F.) test. They are the Centrifugal Water Retention (C.W.R.) method and the constant rate filtration resistance method using the Pulmac Permeability instrument. A standard pulp was used and the fines content was varied from 0% to 25% at 5% intervals. Handsheets were made and the pulp characterization values were related to sheet strength values.
In general, the data indicated that the specific surface area, from the constant filtration …
The Ias Bulletin, V3n2, March 1969, Iowa Academy Of Science
The Ias Bulletin, V3n2, March 1969, Iowa Academy Of Science
IAS Bulletin
In this issue:
--- Constitution Revision
--- Academy Conference to Conduct Editors' Workshop
--- Features of the Eighty-First Session April 18, 19 at University of Northern Iowa, Cedar Falls
--- Motel Information for the April Meeting
--- Reservations Required for Academy Banquet
--- Section Program Highlights
--- Revised Constitution 1969
--- Revised Bylaws
A Microscopic Study Of Dorsal Guard Hairs Of Fifty-Eight Species Of Kentucky Mammals, Leslie E. Meade
A Microscopic Study Of Dorsal Guard Hairs Of Fifty-Eight Species Of Kentucky Mammals, Leslie E. Meade
Morehead State Theses and Dissertations
A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Leslie E. Meade on January 16, 1969
Stomatopod Crustacea Of The Western Atlantic, Raymond B. Manning
Stomatopod Crustacea Of The Western Atlantic, Raymond B. Manning
Studies in Tropical Oceanography
No abstract provided.
Meteorological Factors Controlling The Emergence Of The Eastern Spadefoot Toad, Scaphiopus Holbrooki Holbrookii Harlan, Larry Judy
Theses, Dissertations and Capstones
Scaphiopus holbrooki holbrookii, the Eastern Spadefoot, can exist in an area for many years before it is detected. Its apparent scarcity can be explained by its secretive, fossorial habitat, protective coloration, and nocturnal behavior. Spadefoots are present at the surface locally in small numbers on any one night. They emerge only when conditions are optimum. One authority has suggested that temperature, moisture, and barometric pressure exert control over emergence.
It was the purpose of this research to discover the most important meterorological parameters and investigate how they control the behavior of Scaphiopus.
Initially the response, emergence to breed was distinguished …
Lead Absorption From Soil Into Legumes, Marie H. Berg
Lead Absorption From Soil Into Legumes, Marie H. Berg
Journal of the Minnesota Academy of Science
There is evidence that lead is taken up from the soil into legumes and accumulated in the leaves of beans and peanuts which were examined in this study.
Dolichopodidae (Diptera) And Braconidae (Hymenoptera) Of Curlew Valley, G. F. Knowlton, W.J. Hanson, G.E. Bohart
Dolichopodidae (Diptera) And Braconidae (Hymenoptera) Of Curlew Valley, G. F. Knowlton, W.J. Hanson, G.E. Bohart
Memorandum
No abstract provided.
The Dissociative Breakdown Of Negative Ions / By D. D. Clarke, Chemistry Department, Fordham University, New York, 10458, U.S.A. C. A. Coulson, Mathematical Institute, University Of Oxford, Donald Dudley Clarke Phd, C. A. Coulson
The Dissociative Breakdown Of Negative Ions / By D. D. Clarke, Chemistry Department, Fordham University, New York, 10458, U.S.A. C. A. Coulson, Mathematical Institute, University Of Oxford, Donald Dudley Clarke Phd, C. A. Coulson
Chemistry Faculty Publications
A discussion is given of the process whereby a substituted aromatic molecule captures a slow electron and dissociates. It is shown that the process often goes via two stages. and that the relative symmetries of the electroncapture state and the final dissociation state are very important. Both the sensitivity of the process to changes in the substituent and the existence of an activation energy are explained in the model
The Ias Bulletin, V3n1, January 1969, Iowa Academy Of Science
The Ias Bulletin, V3n1, January 1969, Iowa Academy Of Science
IAS Bulletin
"
In this issue:
--- Call for Papers
--- Visiting Scientist Program
--- Speakers' Bureau Directory
--- Special Committee Named
--- State-Wide Articulation Committee Appointed
--- Report fromthe ISTS Short Course Committee
--- Constitution Revision
--- Industrial Support Being Solicited
--- Special Bulletin Going Out to all High School Science Teachers
--- Membership Information
--- Academy Representatives Attend AAAS Convention
--- Proceedings for 1967 and 1968
--- Research Grants Awarded
--- New Section to Appear on the 1969 Program
--- Program Notes from Other Sections
--- Eighty-First Session at Cedar Falls
--- Call for Nominations for Teacher Awards
--- Selected …
West Midlands Development : Soil Map Used To Group Similar Soils Into Land Use Classes, Department Of Agriculture, Western Australia
West Midlands Development : Soil Map Used To Group Similar Soils Into Land Use Classes, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Selection of areas for initial treatment is basic to economic development of blocks in the West Midlands.
Obviously, it is best to develop large areas of the most productive "land use classes" first in order to obtain the highest and earliest returns on capital.
Chemical Firebreaks, Geoffrey A. Pearce
Chemical Firebreaks, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
MANY public bodies are making regular use of herbicides to create firebreaks. In Western Australia more than $200,000 is being spent on chemicals each year to protect property from fire.
In many situations where the buildings and property are of great value, the cost of the chemical becomes insignificant.