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Articles 31921 - 31950 of 32537
Full-Text Articles in Entire DC Network
Certain Trace Element Distribution In The Searchlight, Nevada Quartz Monzonite, Clark County, Nevada, Jai Nandan Shrivastava
Certain Trace Element Distribution In The Searchlight, Nevada Quartz Monzonite, Clark County, Nevada, Jai Nandan Shrivastava
Masters Theses
"The once prosperous gold, silver, copper and lead mines of the Searchlight mining district, Nevada, are situated along the south and western margins of a large quartz monzonite body. This intrudes the Precambrian gneisses and younger lava flows. Associated mineral veins show an eccentric type of zoning around the intrusive.
Seven rock samples of the quartz monzonite representing different parts of the intrusive were analyzed petrographically and spectrographically. Modal analyses and various types of rock alteration were investigated petrographically. Spectrochemical analyses of the rock samples and their major minerals were carried out for certain trace elements. A semi-quantitative method was …
Sedimentary Features And Geochemistry Of The Sulphide Facies In The Transition Between The Lamotte Sandstone And The Bonneterre Formation In The Fredericktown Area, Madison County, Missouri, Farouk El Baz
Masters Theses
"SCOPE AND PURPOSE The Lead Belt area of southeast Missouri, which is nearly 40 km. long and 10 km. wide, is considered, at the present time, the most important lead district in the world. Lead has been mined in this area by the natives prior to 1720, and almost continuously up to the present day. A variety of sulphides are mined from different places in the district.
The sulphide deposits in the Lead Belt are considered to be typical examples of the Mississippi Valley Type Deposits, which are distributed all over the world. As in practically all the Mississippi Valley …
Certain Features Of Alteration In The Michigan Lavas And Their Genetic Interpretation, Peethambaram Doraibabu
Certain Features Of Alteration In The Michigan Lavas And Their Genetic Interpretation, Peethambaram Doraibabu
Masters Theses
"The origin of the alteration and copper mineralization in the Keweenawan lavas of the Upper Peninsula of Michigan is one of the well known controversial topics in Economic Geology. The literature on this problem is most extensive and an attempt was made in this thesis to first review as many aspects of the discussion as appeared to be necessary. This portion is necessarily extensive, and it is hoped that some new light has been thrown here on some patterns of approach or thought which, today, can hardly be called scientific.
Next, the observations made in the field, on hand specimens …
Geology Of The East-Central Portion Of The Nelson Quadrangle, Clark County, Nevada, Tedral Kantor
Geology Of The East-Central Portion Of The Nelson Quadrangle, Clark County, Nevada, Tedral Kantor
Masters Theses
"The purpose of this investigation was to determine the unusually complex geology of a little-known area south of the Eldorado mining district, southern Clark County, Nevada. The area, mapped at a scale of 1:24000, comprises a segment of the northerly-trending Eldorado mountains in the southeast corner of the Great Basin. This rugged desert area is on a drainage divide between the Great Basin and the Colorado River. The rocks of the area consist of Precambrian gneisses and schists invaded by successive generations of Upper Cretaceous (?) - Tertiary igneous rocks. The older rocks, mainly biotite-chlorite gneisses, have resulted from high-grade …
Cosmology And Galactic Angular Momenta, Marmion Michael Richard Hays
Cosmology And Galactic Angular Momenta, Marmion Michael Richard Hays
University of the Pacific Theses and Dissertations
The plan of this paper is to present some observations and then in subsequent chapters to examine the two basic cosmological ideas in the light of these observations.
The first of the observations involves an estimate of the angular momentum in a given volume of space and the ratio of this momentum to the mass or number of nucleons in the given volume. We therefore wish to obtain a rough estimate of the angular momentum in that part of the universe which man may call his immediate surroundings, i.e., the solar system and galaxy.
Fall Food Habits Of The Merriams' Wild Turkey In Western South Dakota, Curtis Martin Twedt
Fall Food Habits Of The Merriams' Wild Turkey In Western South Dakota, Curtis Martin Twedt
Electronic Theses and Dissertations
The several varieties of wild turkey (Meleagris gallopavo) formerly ranged over much of what is now eastern, central and southwestern United States. A large portion of the species habitat was destroyed by logging and by clearing forest land for agricultural use. Wild turkey population, were also directly decimated because of bunting by early settlers. Edminister (1954) estimated present Wild turkey range to be approximately 1 per cent of the historic range. In the past few decades, wild turkey population have increased to the point where the species has begun to assume a prominent place among the game birds. . . …
Manage Your Rainfall For Maximum Production, J E. Watson
Manage Your Rainfall For Maximum Production, J E. Watson
Journal of the Department of Agriculture, Western Australia, Series 4
TTOW much would an extra inch of rainfall be worth to you? Much sloping land loses this much and more by run-off every year.
The soil is the main asset of your farm, but your profits depend on how you manage the rain which falls on it.
The Carbon Compounds Of The Primeval Atmosphere, James Sherman Rogers
The Carbon Compounds Of The Primeval Atmosphere, James Sherman Rogers
University of the Pacific Theses and Dissertations
The question of how and when life originated on t his planet has always been an intriguing one, exceeded perhaps in fascination only by that area of speculation which concerns itself with death and the afterlife . The latter problem has generally been approached along theological lines; the former problem , that of the origin of life, has been widely investigated along scientific lines as well . Indeed, the origin of life has always been one of the fundamental problems of science, and the increasingly sophisticated answers to the problem reflect the increasing potence and applicability of the methods of …
Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson
Normal Incidence - Grazing Incidence Spectrograph For The Vacuum Ultraviolet, J. Kirston Henderson
Masters Theses
"Presentation of Design.
This thesis presents the design for a combination normal incidence - grazing incidence spectrograph for use in the vacuum ultra-violet and soft x-ray portions of the electromagnetic spectrum. The instrument described was designed and constructed as a partial fulfillment of the requirements for the master of science degree from The Missouri School of Mines and Metallurgy.
Design Details.
Included in this thesis is a complete set of all detailed drawings and information required for either effective use or duplication of this instrument. Complete discussions of the design, operating procedures, difficulties encountered during construction and suggestions for future …
"American Foreign Policy In The Atomic Age", Arthur Meier Schlesinger Jr.
"American Foreign Policy In The Atomic Age", Arthur Meier Schlesinger Jr.
Special Collections: Oregon Public Speakers
No abstract provided.
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
Theses and Dissertations
The present study was initiated to determine the effect sorbitol has upon the enzymatic functions of thiamin; specifically, what effect sorbitol bas upon the alpha-ketoglutarate and pyruvate dehydrogenases activities of rat liver mitochondria. In addition, the effect of varying the dietary sorbitol concentration on the development of an athiaminosis was studied, particularly the effect on growth rate.
A Study Of Team Leader Activity On A Selected Medical Unit In A General Hospital, Margaret Elaine Schulhof
A Study Of Team Leader Activity On A Selected Medical Unit In A General Hospital, Margaret Elaine Schulhof
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to observe and analyze the activities of the nursing team leader on a selected medical unit of the Loma Linda Sanitarium and Hospital and to measure the percentage of time spent in each recognized function.
To accomplish this, the descriptive survey method was used. Six team leaders were "shadowed" by an. observer for a total of ten days. Record of all team leader activity was made on a specially prepared form which provided for classification of activity under Leino's six functions for the team leader. These are:
- To Identify the Patient's Nursing problems
- To …
The Effect Of The Method Of Irrigation And Fertilizer Application On The Movement Of Nitrates In The Soil, Lavoir A. Banks
The Effect Of The Method Of Irrigation And Fertilizer Application On The Movement Of Nitrates In The Soil, Lavoir A. Banks
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
It is generally recognized that one of the most important factors limiting crop production is soil nitrogen. Farmers today are using more nitrogen fertilizers than ever before. All indications show that this usage will probably continue to increase. With the expanded use of nitrogen, it has become desirable to increase the efficiency from nitrogen fertilizers. One factor which will affect the efficiency is the position of the nitrogen in the soil in relation to the plant roots.
Financial Management Of Large Forest Ownerships, John Fedkiw, William L. Moise, Walter H. Meyer, Meade Whitaker, Henry I. Barclay Jr., C. G. Mclaren, J. A. Segur
Financial Management Of Large Forest Ownerships, John Fedkiw, William L. Moise, Walter H. Meyer, Meade Whitaker, Henry I. Barclay Jr., C. G. Mclaren, J. A. Segur
Yale School of the Environment Bulletin Series
No abstract provided.
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
Journal of the Department of Agriculture, Western Australia, Series 4
IN a recently published economic survey of the Australian wheat growing industry, it was reported that nearly two-thirds of the farms surveyed in Western Australia were located on lateritic "sand plain."
As a random selection was made of the eighty farms that were visited it is reasonable to conclude that a similar proportion of all the State's wheat producing farms are on that type of country.
This constitutes a remarkable change from the earlier days of wheat belt settlement when the sand plain soils were regarded as virtually useless and by-passed for development.
It is the purpose of this article …
The Dispersal And Acclimatization Of The Muskrat, Ondatra Zibethicus (L.), In Finland, Atso Artimo
The Dispersal And Acclimatization Of The Muskrat, Ondatra Zibethicus (L.), In Finland, Atso Artimo
Other Publications in Wildlife Management
The natural range of the muskrat, Ondatra zibethicus (L.), comprises the major part of the North American continent (Fig. 1). In the northern and eastern parts of its range its distribution is more or less continuous, but in the arid west it is very patchy. The species is absent from some areas which, according to Storer (1938), are suitable for it. This writer assumes (op.cit. pp. 159-160) that »Muskrats probably reached some of the now isolated waters of the West during a period when aquatic and palustrine habitats were more widespread, in late Pleistocene or postglacial times. With subsequent contraction …
Occurrence Of Mineralized Ground Water In Southern St. Louis And Jefferson Counties, Missouri, Willard Glennon Owens
Occurrence Of Mineralized Ground Water In Southern St. Louis And Jefferson Counties, Missouri, Willard Glennon Owens
Masters Theses
"Mineralized ground water occurs at some localities in southeastern St. Louis and northern Jefferson counties, Missouri. This water is usually undesirable and is detrimental to development of ground water resources.
Water well records in the offices of the Missouri Geological Survey and Water Resources provided data for a study of structure, lithology and occurrence of ground water. Water well drillers and property owners were interviewed to obtain additional information concerning drilling problems and quality of water.
Geologic cross-sections, subsurface contour maps and isochlorinity maps aided the study of lithology, structure and areal distribution of mineralized ground water. Relationship is suggested …
Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation
Comprehensive Survey Of Sedimentation In Lake Mead, 1948-49, W. O. Smith, C. P. Vetter, G. B. Cummings, U.S. Bureau Of Reclamation
Publications (WR)
Reservoirs are becoming an increasingly prominent feature of the American landscape. Built for flood mitigation and to change a fluctuating river into a dependable source of water for irrigation, power, and other purposes, they are predestined, like natural lakes, to be destroyed sometime following their creation. Sedimentation sooner or later robs most lakes and reservoirs of their capacity to store water. The significance of sedimentation in the life of Lake Mead, the largest artificial reservoir in the world, was realized when the plan for the reservoir was conceived, and an aerial survey of the floor was made in 1935 before …
Preparation Of Elemental Boron And Measurement Of Its Emittance At Incandescent Temperatures, Claude P. Talley
Preparation Of Elemental Boron And Measurement Of Its Emittance At Incandescent Temperatures, Claude P. Talley
Master's Theses
The normal spectral emittance at 0. 65 microns of elemental boron specimens was measured at incandescent temperatures by the hollow-tube method, This was made possible by depositing boron onto thin-walled hollow tubes of graphite and molybdenum. An approximate value of the total hemispherical emittance for boron was also obtained. The deposition of boron was accomplished by chemical vapor plating with boron tribromide and hydrogen. The boron produced was characterized in several ways.
Method Of Teaching Basic Crystallography To The Beginning Student, Robert J. Willard
Method Of Teaching Basic Crystallography To The Beginning Student, Robert J. Willard
Journal of the Arkansas Academy of Science
No abstract provided.
The Fundamental Atomic Particles, Ransom Bloomer Beers
The Fundamental Atomic Particles, Ransom Bloomer Beers
Masters Theses
No abstract provided.
Water Resources Development -- An Analysis Of Economic Justification Practices Of The Corps Of Engineers, Kerwood W. Barrand
Water Resources Development -- An Analysis Of Economic Justification Practices Of The Corps Of Engineers, Kerwood W. Barrand
Masters Theses
"Presented herein is a brief analysis of the economic justification practices of the Corps of Engineers as commonly implemented in proposals concerning water resources projects. Where applicable, recommended methods are compared to similar methods advocated for, and accepted by, private engineering firms in similar situations.
The major problem exists in the lack of a profit motive in programs undertaken with the use of public funds. However, a profit can be said to have been realized in public works programs if the total benefits of the programs to all the people exceed the costs of these programs and, further, if the …
Mississippian Bioherms Of Southwestern Missouri And Northwestern Arkansas, Arthur R. Troell Jr.
Mississippian Bioherms Of Southwestern Missouri And Northwestern Arkansas, Arthur R. Troell Jr.
Masters Theses
"Lenticular bodies of massive limestone, flanked by thin crinoidal beds, crop out in southwestern Missouri and northwestern Arkansas. They are within the St. Joe limestone of the Lower Mississippian.
Strata underlying these bodies typically are down-warped, those on the flanks lapping against, finally passing completely over the limestone core. Dips away from the “reef” are commonly around 5 degrees, but reach as much as 30 degrees. Conglomeratic detritus, originating from the core, occurs in flanking beds at their contact with it.
Thin sections of these masses show no more than 15 per cent of the limestone to consist of fossil …
The Surficial Geology Of North-Central Kidder County, North Dakota, Wallace E. Bakken
The Surficial Geology Of North-Central Kidder County, North Dakota, Wallace E. Bakken
Theses and Dissertations
Kidder County is situated in central North Dakota within the glaciated Missouri Plateau. Rocks underlying the drift range from Cretaceous (Pierre formation) through Palocene (Tongue River formation) in age. The Pierre and Fox Hills formations constitute the majority of the pre-Pleistocene surface. Ice-shove deformation, apparently during Cary time, tilted blocks of Fox Hills in the Sibley Buttes into northeastward-dipping positions.
Cary and Mankato subages of Wisconsin age are represented at the surface. Ages are difficult to assign to drift sheets on the basis of lithology or degree of weathering of included tills; but by correlation from South Dakota and crosscutting …
Space Focus, Space Enterprises, Inc.
Space Journal, Vol. 2, No. 2, December 1959, Space Enterprises, Inc.
Space Journal, Vol. 2, No. 2, December 1959, Space Enterprises, Inc.
Space Journal
No abstract provided.
Space And The Law, Menachem Sheffy
Press Report (1959), Walter A. Lawrance
An Aeromagnetic And Geologic Reconnaissance Survey Of The Sidney - Augusta And Gardiner Areas : Kennebec County, Maine, Lawrence A. Wing
An Aeromagnetic And Geologic Reconnaissance Survey Of The Sidney - Augusta And Gardiner Areas : Kennebec County, Maine, Lawrence A. Wing
Maine Collection
An Aeromagnetic and Geologic Reconnaissance Survey of the Sidney - Augusta and Gardiner Areas : Kennebec County, Maine
(GP & G Survey #5)
by Lawrence A. Wing, Chief Geologist, James W. Sewall Company, Old Town, Maine.
Maine Geological Survey, Department of Economic Development, Augusta, Maine - August 12, 1959.
An Evaluation Form For Professional Staff Nurses, Barbara Jean Brauer
An Evaluation Form For Professional Staff Nurses, Barbara Jean Brauer
Loma Linda University Electronic Theses, Dissertations & Projects
The problem of this study was to develop an evaluation form to measure the differentiation in quality of nursing care given by professional staff nurses. It was hoped that the evaluation form could be used by administrators of nursing service as a basis for giving pay increases based on nursing performance.
A review of nursing literature did not reveal the existence of an evaluation form based on verifiable data of performance upon which an objective evaluation could be made.
The critical incident technique was used to gather the data for the study. The respondents were nursing supervisory personnel employed in …