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Private Irrigation Systems : Do They Pay?, G D. Oliver

Journal of the Department of Agriculture, Western Australia, Series 4

WESTERN AUSTRALIA, with 71,000 acres under irrigation, can hardly claim to have an important irrigation farming industry.

However, irrigation is daily growing in importance, especially through private schemes. These account for almost half the present irrigated area.

Drilled Versus Topdressed Superphosphate For Cereal Production, A Loutit, P. Stallwood, W. J. Cox

Journal of the Department of Agriculture, Western Australia, Series 4

CEREAL growers in Australia usually use a drill or combine to apply their seed and superphosphate in one operation.

However, during the last few years, there has been a rapid increase in the amount of super broadcast bafore seeding.

Optimal Forest Investment Decisions Through Dynamic Programming, Gerard F. Schreuder

Yale School of the Environment Bulletin Series

No abstract provided.

Computer Graphics In Macromolecular Chemistry, Cyrus Levinthal, David Barry, Stephen Ward, Martin Zwick

Complex Systems Faculty Publications and Presentations

In this presentation, the possible role of computer graphics in macromolecular chemistry is demonstrated by reference to a molecular model building program running on a computer with a graphics console. The program was developed to pursue studies in protein configurations. A description of the program is given together with examples of the display produced.

Tetracycline-Based Histological Measurement Of Corticalendosteal Bone Formation In Normal And Osteoporotic Rib, Sam Jett, Kent Wu, Harold M. Frost

Henry Ford Hospital Medical Journal

It is necessary to understand the pathophysiology of osteoporosis in order to cure or prevent it. This involves establishing normal standards of bone formation and comparing these with measurements in osteoporotics. Here the authors present data collected through more sophisticated techniques than have been available previously, and offer some conclusions as to their implications.

Pulse And Impulse In The Sinus Node, Thomas N. James

Henry Ford Hospital Medical Journal

Recent experiments at the Henry Ford Hospital indicate that a relationship exists between pulsation in the sinus node artery and impulse formation by the sinus node. This paper describes the experiments and presents anatomic, physiologic and pharmacologic evidence along with observations that should interest the physicist and mathematician, as well.

Effect Of Nitrogen Fertilization On The Establishment, Density, And Strength Of Merion Kentucky Bluegrass Sod Grown On A Mineral Soil, Kent W. Kurtz

Masters Theses

No abstract provided.

A Survey Of The Breakfast And Snack Habits Of Adventist And Non-Adventist Adolescents, Consuelo A. Bustista

Loma Linda University Electronic Theses, Dissertations & Projects

A study was undertaken to survey by questionnaire and interview methods the breakfast and snack habits of Adventist and non-Adventist adolescents. The purposes of the study were: (I) to find out if there is any difference in the practices of Adventist and non-Adventist teenagers, and (2) to determine their attitudes toward snacking and omission of breakfast.

Results of the questionnaire were coded, punched onto IBM cards, and fed into computing machines for item and statistical analysis. Chi-square test analyses were done on denominational classification against some questions of interest to show any significant differences between Adventist and non-Adventist students' responses. …

Osteoid Seams And Resorption Spaces In Standard Samples Of Human 6th And 11th Ribs, F. Santoro, H. M. Frost

Henry Ford Hospital Medical Journal

Studies of 6th and 11th rib samples taken at autopsy from 22 adults who had been seriously ill before death were compared, and it is provisionally concluded that the average number of bone forming and resorbing centers in a Unit amount of compacta are similar in each sampling site. More material on this continuing study of bone dynamics is scheduled for future issue of the MEDICAL JOURNAL.

Kinetic Regulation Of Enzymes, Joseph D. Shore

Henry Ford Hospital Medical Journal

This paper, on a highly sophisticated subject written in a non-mathematical style, provides the reader not only with an understandable review of an important aspect of the metabolic regulation of enzyme activity (i.e.) kinetic regulation) but also with results of original investigations being conducted in this specific area of research by Dr. Shore in the Department of Biochemistry and Molecular Biology of the Edsel B. Ford Institute for Medical Research.

A Balanced Salt Culture Medium For Halteria Grandinella, Yee Wan Mark

All-Inclusive List of Electronic Theses and Dissertations

The animals that the writer worked with liere the unicellular organisms called liaJ,tez:ia grandil.!iilJ.a• They belong to the Pl~lum Protozoa and are placed in the Class Ciliata and the Order Oligotrichia. llftltez'A gDJ}gini•U, like most protozoa, ll ve in waters but they seem to prefer qUiet pools, lakes, and ponds in which aqua i;;!c plants are growing and in which there is much organic matter.

The Effect Of Glucose On Neutrophilic Phagocytosis, Donald F. Adams

Loma Linda University Electronic Theses, Dissertations & Projects

Samples of blood were obtained from thirty healthy young adult males (Loma Linda University School of Dentistry), and contaminated with bacteria. Varying concentrations of pure glucose were added to this mixture to observe the effect of the glucose on in vitro neutrophilic phagocytosis. As the glucose levels increased a statistically significant suppression was noted in the ability of the neutrophilic leukocytes to engulf Staphylococcus epidermidis.

It was not possible, however, to predict the degree of suppression for any particular level of glucose added nor is it possible to state that suppression will occur in any one individual.

Two methods of …

Carbon Dioxide Fixation In Schistosoma Mansoni, Clint Earl Carter

Loma Linda University Electronic Theses, Dissertations & Projects

Adults of the blood fluke Schistosoma mansoni were perfused from the hepatic portal system of CF1 female mice sixty to seventy days post infection. The worms were then incubated in Eagle’s minimal essential medium with glutamate and 0.03 mg/100 ml of nonlabelled aspartic acid. To this medium was added 10 μc of either NaH¹⁴0₃, glucose-UC¹⁴ or aspartate-4-C¹⁴. The worms were found to fix carbon from the NaH¹⁴0₃ and to incorporate the glucose and aspartate. The amount of activity recovered in five different chemical fractions after two hours incubation was determined …

Estimation Of Incoming Radiation From Extraterrestrial Radiation And Climatic Data, Rodrigo H. Pizarro

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Average monthly values of incoming radiation, extraterrestrial radiation, sunshine, and sky cover frorn 32 climatological stations in the United States were used as a basis to develop radiation equations.

Empirical relations between incoming radiation and more commonly available climatic and geographic variables, such as percent of relative sunshine, mean daily sky cover, station elevation and extraterrestrial radiation, were established using an empirical procedure used by Christiansen (1966, 1967) to compute his evaporation and evapotranspiration formulas.

The reliability of the equations developed was deternlined by comparing the computed values of incoming radiation with measured values at Davis, California and for the …

An Investigation Of Methods For Estimating Marginal Values Of Irrigation Water, Richard L. Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Marginal values of water used in irrigation are needed if water is to be optimally allocated among alternative uses. Cobb-Douglas production function analysis and linear programming methods were studied in this investigation to find their fruit-fulness in predicting these marginal values. The theoretical properties of both methods indicate that they are conceptually capable of yielding valid marginal value estimates for irrigation water.

Further investigation of the two methods was carried out as an empirical test in the Milford area of Utah. Marginal values of water used for irrigation in that area were estimated by both procedures. Although inviolable criteria for …

The Free Sterol Content Of Selected Clones Of Alfalfa As Related To Seed Infestation By The Alfalfa Seed Chalcid, Rex Alton Richards

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The infestation of twelve selected clones of alfalfa by the alfalfa seed chalcid was measured. The free sterol content of the stems, leaves, flowers and pods of these clones was determined. A check was made to see if there was a correlation between the sterol content and the chalcid infestation.

Differences were found among the clones in the sterol content for each plant part. There were also significant differences in percent chalcid infestation in the 12 clones. Duncan's New Multiple Range Test pointed out which clones differed Significantly from the others.

Using linear regression analysis, the correlation coefficient of the …

Simulation As A Technique For Evaluating Water In Competing Uses, Dennis Norman Detray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is a methodological study of a technique of analysis known as simulation, with special reference to developing economic-cum-hydrologic models of complex real world water resource systems.

It is the eventual goal of this project to develop a complete economic and hydrologic computer model of Cache County, Utah, to further test the applicability of simulation to water resource problems. Although no modeling is carried out, Cache County is used as a foundation for judging the technique within this thesis.

Of the several approaches to simulation which were reviewed, Forrester's (1961) methods, and the use of DYNAMO as a simulation …

Quantitative Analyses Of Perennial Atriplex-Dominated Vegetation Of Southeastern Utah, Teja Singh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

An intensive study of the applicability of mathematical methodology to the ordination and classification of desert vegetation was undertaken during 1962, 1963 and 1964. The study area, forming part of the shadscale zone vegetation and covering 13.5 square miles, is situated near Cisco in Grand County, southeastern Utah. Broad pediments originating from the nearby Book Cliffs are the main landform.

Geologically, the area was subjected to many cycles of erosion. The pediment and the Quaternary remnants thin out with increasing distance from the Book Cliffs. The alluvial fan deposits are readily recognizable at three distinct levels. Mancos shale, a lead-gray …

The Seventy-Ninth Session Of The Iowa Academy Of Science And The Thirty-Fifth Convention Of The Iowa Junior Academy Of Science, April 21, 22, 1967, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Forestry Bulletin No. 14: Practical Point-Sampling, Ellis V. Hunt Jr., Robert D. Baker

Forestry Bulletins No. 1-25, 1957-1972

"Mr. L.R. Grosenbaugh (1952) introduced point-sampling to American foresters, citing Mr. W. Bitterlich's earlier work in Europe. Primarily it is, he said, 'A rapid method of sampling tree basal area per acre . . . '"

Tetracycline-Based Measurement Of Bone Dynamics In Rib Of A Girl Dying Of Gaucher's Disease, John E. Pasko, Harold M. Frost

Henry Ford Hospital Medical Journal

No abstract provided.

American Opisthobranch Mollusks, Eveline Marcus, Ernst Marcus

Studies in Tropical Oceanography

No abstract provided.

Proceedings Of The International Conference On Tropical Oceanography, International Conference On Tropical Oceanography

Studies in Tropical Oceanography

No abstract provided.

The Moose In Northeastern Minnesota, Patrick D. Karns

Journal of the Minnesota Academy of Science

The succession of dominant cervids in northeastern Minnesota since settlement has passed from moose and woodland caribou to moose lo white-tailed deer and is now returning to moose. Results of recent studies show high moose densities in some areas are leading lo range deterioration and reduced net productivity. Pneumostrongylus tenuis, a common parasite of white-tailed deer but fatal to moose, is the etiological agent of moose disease. With increases in deer density, such as occurred in the 1920's and 30's, the reports of this disease in moose became more prevalent. Presently, where moose occur on the high deer density areas …

Evidence For Seasonal Variation In Incidence Of Renal Adenocarcinoma In Rana Pipiens, Robert Gilmore Mckinnell

Journal of the Minnesota Academy of Science

A high incidence of frog renal adenocarcinoma as determined by autopsy in purchased late fall and winter individuals is contrasted to the scarcity of the adenocarcinoma in summer field captured frogs.

Cattle : And The Ord Irrigation Project, W M. Nunn

Journal of the Department of Agriculture, Western Australia, Series 4

No abstract provided.

The Structure Of Germination In Pinus Lambertiana Dougl., Graeme P. Berlyn

Yale School of the Environment Bulletin Series

No abstract provided.

Thermophysical Properties Of Bark Of Shortleaf, Longleaf, And Red Pine, William E. Reifsnyder, Lee P. Herrington, Karl W. Splat

Yale School of the Environment Bulletin Series

No abstract provided.

A Revision Of The Bees Of The Genus Andrena Of The Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae), Wallace E. Laberge

Bulletin of the University of Nebraska State Museum (1924–2023)

This paper is the first part of a monograph of the bee genus Andrena in the western hemisphere and treats the subgenus Callandrena. Available data regarding phylogeny, distribution, biology, and flower preferences are presented together with keys to separate the species, diagnoses and descriptions of the species and discussions of geographic variation when applicable. Seventy-nine species and one subspecies are recognized. Sixteen names are relegated to synonymy, one to homonymy and eight are removed from the subgenus Callandrena. The thirty-nine species new to science are: aerifera, aeripes, afimbriata, ardis, auripes, balsamorhizae, beameri, bilimeki, bullata, calvata, dreisbachorum, fulminea, fulminoides, …

A Pharmacological Analysis Of The Ionic Channels Of Nerve, Bertil Hille

Student Theses and Dissertations

The effects of various drugs on single myelinated nerve fibers from Rana pipiens were studied with the voltage clamp technique of Frankenhaeuser and Dodge. The observed currents were analysed by a computer in terms of the mathematical model of Hodgkin and Huxley. The sodium, the potassium, and the leakage current components and the time constants associated with their changes were calculated. Tetrodotoxin abolished the sodium currents selectively, and tetraethylammonium ion abolished the potassium currents selectively. Neither of these drugs affected the time constants associated with any of the current components. The curves relating the kinetic parameters of the sodium currents …