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Articles 287701 - 287730 of 292727
Full-Text Articles in Physical Sciences and Mathematics
Permian Megaspores From Hazru (Di̇yarbakir), Kâzım Yahşiman, Yaşar Ergönül
Permian Megaspores From Hazru (Di̇yarbakir), Kâzım Yahşiman, Yaşar Ergönül
Bulletin of the Mineral Research and Exploration
No abstract provided.
Maden Tetki̇k Ve Arama Ensti̇tüsü Yayinlari, - -
Maden Tetki̇k Ve Arama Ensti̇tüsü Yayinlari, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Microscopic Radial Lines In Gels, Robert Peter Frosch
Microscopic Radial Lines In Gels, Robert Peter Frosch
Honors Theses
There are many interesting formations which may be prepared in gels. Probably the best known are Liesegang rings, first prepared in the latter nineteenth century and observed previously in such naturally occurring materials as agate. Besides rings periodic radial structures have been observed in gelatin. Some of these radial formations are visible to the naked eye; others may be observed only under a microscope. It is one of the radial formations of the layer type which will be discussed in this paper. For want of a better name the formation to be discussed will simply be referred to as radial …
The Photogalvanic Effect, George Henry Hofmann
The Photogalvanic Effect, George Henry Hofmann
Honors Theses
The photogalvantic effect has been studied by relatively few people. Perhaps the largest contribution to the study of this effect has been by E. Rabinowitch while the Massachusetts Institute of Technology and terminated in 1940. At this time Rabinowitch indicated the possibilities in the utilization of solar energy by the photogalvantic effect (1). Presented here is a study of the effect using a modified form of the apparatus used by Rabinowitch. An attempt is made at explaining the results obtained, the advantages and disadvantages of the apparatus used and suggestions are given for improvement. A specific photogalvantic system of high …
Light Scattering By Silicic Acid Gel-Forming Mixtures, Bruce Monroe Manzer
Light Scattering By Silicic Acid Gel-Forming Mixtures, Bruce Monroe Manzer
Honors Theses
In this investigation the scattering of light by silicic acid gel-forming mixtures has been studied during the process of gel formation in an effort to extend the work already done on their structure and the mechanism of gel formation. The intensity of the scattered light has been measured by means of Fisher Nefluoro-photometer and an attempt has been made to use the results in explaining the change which the gel-forming mixtures undergo during gel formation.
Studies Of Reductions Of Unsaturated Compounds With Lithium Aluminum Hydride, Robert William Barito
Studies Of Reductions Of Unsaturated Compounds With Lithium Aluminum Hydride, Robert William Barito
Honors Theses
Our work has involved the reduction of certain alpha-beta unsaturated carbonyl compounds and the reduction of two compounds that did not contain alpha-beta unsaturated carbonyls.
Paper Chromatography Of The Dicarboxylic Acids And The Polyhydric Alcohols, Albert Esposito
Paper Chromatography Of The Dicarboxylic Acids And The Polyhydric Alcohols, Albert Esposito
Honors Theses
The objective of this work was to develop a paper chromatographic technique applicable to the separation and identification of the dicarboxylic acids and the polyhydric alcohols.
A Study Of Aluminum Phosphates Using Infrared Spectroscopy, Michael Miller
A Study Of Aluminum Phosphates Using Infrared Spectroscopy, Michael Miller
Honors Theses
The infrared spectra of aluminum metaphosphate, aluminum pyrophosphate, and the ortho acid phosphates were studies in the 2u to 15u region. The distinct absorption regions of each compound were located. The type of bond which caused the absorption is suggested. The spectra of the aluminum phosphates were found to be very similar to the spectra of other phosphates.
Die Kieselbildungen Des Simischen Magmatismus In Anatolien, Karl Nebert
Die Kieselbildungen Des Simischen Magmatismus In Anatolien, Karl Nebert
Bulletin of the Mineral Research and Exploration
No abstract provided.
Oil Possibilities In The Sedimentary Basins Of Turkey*, Cahit Erentöz, Zati Ternek
Oil Possibilities In The Sedimentary Basins Of Turkey*, Cahit Erentöz, Zati Ternek
Bulletin of the Mineral Research and Exploration
No abstract provided.
Topological Groupoids, Ronson J. Warne
Topological Groupoids, Ronson J. Warne
Doctoral Dissertations
A groupoid is a set G in which a single valued product ab is defined for every pair of elements a, b ε G. If G is a groupoid and at the same time a Hausdorff topological space, and, moreover, the multiplication in the groupoid G is continuous in the topological space G, then G is called a topological groupoid. Our aim in this dissertation is two-fold: (1) to study topological groupoids for their own sake; (2) to investigate the relation of certain topological properties to associativity. We note, in relation to the first motif, that many authors have dealt …
Geology Of Newman Ridge And Brushy-Indian Ridge Between Sneedville, Hancock County, Tennessee, And Blackwater, Lee County, Virginia, Adrian Vance Greene
Geology Of Newman Ridge And Brushy-Indian Ridge Between Sneedville, Hancock County, Tennessee, And Blackwater, Lee County, Virginia, Adrian Vance Greene
Masters Theses
The area described in this thesis comprises portions of northeastern Hancock County, Tennessee, and southeastern Lee County, Virginia (Figure 1). It includes parts of the Sneedville and Kyles Ford quadrangles (Tennessee Valley Authority and United States Geological Survey topographic maps 170-SW and 170-SE respectively).
The mapped area, bounded on the southeast by the Hunter Valley fault and on the northwest by Blackwater Valley, is approximately fifty miles west of Bristol, Tennessee-Virginia, and fifty-five miles northeast of Knoxville, Tennessee. It is about eleven miles long and three miles wide and encloses approximately thirty-three square miles.
New Carboniferous Megaspores From The Zonguldak And Amasra Coal Basin, Kâzım Yahşiman
New Carboniferous Megaspores From The Zonguldak And Amasra Coal Basin, Kâzım Yahşiman
Bulletin of the Mineral Research and Exploration
No abstract provided.
An Investigation Regarding Faculty-Student Ratio In The Medical-Surgical Area In Accredited Collegiate Schools Of Nursing, Frances Louise Fickess
An Investigation Regarding Faculty-Student Ratio In The Medical-Surgical Area In Accredited Collegiate Schools Of Nursing, Frances Louise Fickess
Loma Linda University Electronic Theses, Dissertations & Projects
Statement of the Problem: the purpose of this study was to find out the current faculty-student ratio in the medical-surgical area in collegiate school of nursing which were fully accredited by the National League for Nursing and the number of students with which instructors felt comfortable in their clinical instructions.
Method: the descriptive survey method with a questionnaire was used to collect data from the study. Eighty-six instructors returned the questionnaire.
Summary of Findings: most instructors were responsible for teaching more than one class level of students and were teaching in a hospital without segregated service. Forty-eight …
An Investigation Of Metallic Rhenium, Rhenium Dioxide And Rhenium Chlorides As Catalysts In The Hydrogenation Of Certain Organic Substrates, Walter William Brown
An Investigation Of Metallic Rhenium, Rhenium Dioxide And Rhenium Chlorides As Catalysts In The Hydrogenation Of Certain Organic Substrates, Walter William Brown
Theses and Dissertations
The purpose of the present investigation was to examine the various analytical methods to ascertain the suitability of the methods for our use in determining the amount of rhenium used in our catalysts, and, if necessary devise a new method. Also, several catalysts were to be prepared and used in hydrogenation or organic compounds. Evaluation of the catalytic activity of each catalyst was to be made by using them with various selected organic substrates.
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 …
An Investigation Of The Feasibility Of Establishing A School Of Nursing In Connection With Bella Vista Hospital, M. Eulalia White
An Investigation Of The Feasibility Of Establishing A School Of Nursing In Connection With Bella Vista Hospital, M. Eulalia White
Loma Linda University Electronic Theses, Dissertations & Projects
The Bella Vista Hospital has had problems of staffing since it opened. Nurse shortages have been typical of all insular hospitals. There have been no national Seventh-day Adventist nurses available and no school where they could receive nursing education. The question has been raised whether it would be feasible to establish a school of nursing in connection with the hospital. This would give opportunity for Seventh-day Adventist young people who seek nursing education and would help prepare nurses to staff the hospital.
Through a survey of the Seventh-day Adventist church and youth membership in the Inter-American Division, it was found …
A Follow-Up Study Of Paradise Valley School Of Nursing Graduates From 1950-1957, Charlotte D. Ross
A Follow-Up Study Of Paradise Valley School Of Nursing Graduates From 1950-1957, Charlotte D. Ross
Loma Linda University Electronic Theses, Dissertations & Projects
This study was conducted to find out if Paradise Valley School of Nursing is meeting certain specified objectives and to gather information which could help in future curriculum planning to better meet the needs of the students.
The normative-survey was the method used to gather data from graduates of the 1950-1957 classes. This group comprised those graduating from the three-year diploma program. A questionnaire was mailed to 149 graduates of which 124 responded.
The study shows that:
The graduates are residing in 22 states and 4 foreign countries.
Sixty-six per cent are married with over half being married within 3 …
Pennsylvanian Spores From The Sandia Formation Santa Fe County, New Mexico, Thomas L. Carten
Pennsylvanian Spores From The Sandia Formation Santa Fe County, New Mexico, Thomas L. Carten
Earth and Planetary Sciences ETDs
No abstract provided.
Liquid Scintillators. Some Aryl Substituted Phenanthrenes And Dihydrophenanthrenes, And Related P-Terphenyls And P-Quaterphenyls, Stephen Paul Birkeland
Liquid Scintillators. Some Aryl Substituted Phenanthrenes And Dihydrophenanthrenes, And Related P-Terphenyls And P-Quaterphenyls, Stephen Paul Birkeland
Chemistry and Chemical Biology ETDs
The liquid scintillation system has three basic components:
(1) A scintillation solution consisting of an efficient solvent and a fluorescent solute.
(2) A photomultiplier tube.
(3) An electronic system for measuring and recording the voltage pulses generated by the photomultiplier from the photons impinging on it.
Petrology Of The Tijeras Greenstone, Bernallio County, New Mexico, John J. Bruns
Petrology Of The Tijeras Greenstone, Bernallio County, New Mexico, John J. Bruns
Earth and Planetary Sciences ETDs
The Precambrian metamorphosis rocks of the Tijeras Canyon area crop out along a five-mile, northeast-trending belt, which lies approximately five miles east of the Sandia Mountains front, in north-central New Mexico. The sequence, to the east, is overlain uncomfortably by Pennsylvanian Madera limestone, while the trace of the Tijeras fault marks the western side.
The Geology Of South Fork Thrust And Subsurface Geology Of The Belknap Ranch, Park County, Wyoming, James L. Deurmyer
The Geology Of South Fork Thrust And Subsurface Geology Of The Belknap Ranch, Park County, Wyoming, James L. Deurmyer
Earth and Planetary Sciences ETDs
The segment of the South Fork thrust in the Belknap ranch area contains rocks representative of the Upper Jurassic, Lower Cretaceous and Upper Cretaceous. The thrust plate occupies 75 percent of the mapped area. Approximately 3,500 feet of predominantly marine rocks comprise the detachment thrust and about 15 percent of the exposed rocks of the thrust plate is sandstone and conglomerate. All the rock units present in the thrust plate crop out beyond the edge of the over-riding mass except the Sundance and Morrison formations. Approximately 4,600 feet of geologic section is exposed of drilled in the mapped area. The …
Lithogenesis Of The Pennsylvanian Madera Formation Of Palomas Peak, Sandia Mountains, New Mexico., Ronald D. Perkins
Lithogenesis Of The Pennsylvanian Madera Formation Of Palomas Peak, Sandia Mountains, New Mexico., Ronald D. Perkins
Earth and Planetary Sciences ETDs
The Pennsylvanian Madera formation of Palomas Peak in the Sandia Mountains of central New Mexico is a sequence of marine limestone and minor sandstone that ranges in age from Desmoinesian to Virgilian. The limestone is predominantly clastic or bioclastic and the sandstone is arkosic. Lithologic and paleontologic evidence suggests an epineritic to infraneritic environment on a gently subsiding shelf during deposition of the Madera Sediments.
Rhythmic deposition at Palomas Peak is evidenced by alternating clastic and bioclastic limestones which may have resulted from: (1) eustatic changes in sea level, (2) tectonic fluctuations in the downwarping of the shelf, or (3) …
Test 699: Porche Junior L108 (Diesel), Nebraska Tractor Test Lab
Test 699: Porche Junior L108 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
The Absolute Excitation Functions For The I 127 (N,Y) I 128 And Na 23 (N,Y) And Na 24 Reactions, Richard L. Cubitt
The Absolute Excitation Functions For The I 127 (N,Y) I 128 And Na 23 (N,Y) And Na 24 Reactions, Richard L. Cubitt
Physics & Astronomy ETDs
Radiative capture (n,y) cross sections, in addition to their theoretical interest, are of great practical importance to the technology of reactor design. A knowledge of the absolute excitation functions of the various materials employed in reactors permits calculation of the effect of these materials on the reactivity of a reactor, and also enables shielding calculations to be made.
Test 744: Massey-Ferguson Mf 35 (Diesel), Nebraska Tractor Test Lab
Test 744: Massey-Ferguson Mf 35 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 698: Oliver 550 Diesel, Nebraska Tractor Test Lab
Test 698: Oliver 550 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 697: Oliver 550, Nebraska Tractor Test Lab
Test 697: Oliver 550, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
The Kinetics Of Thermal Decomposition Of 1,1'-Azobutane, 1,1'-Azoisobutane And 2,2'-Azobutane, Norman L. Eatough
The Kinetics Of Thermal Decomposition Of 1,1'-Azobutane, 1,1'-Azoisobutane And 2,2'-Azobutane, Norman L. Eatough
Theses and Dissertations
The following compounds have been prepared and purified and the boiling points, densities, refractive indicies and infrared spectra of each have been determined and recorded: n-butyraldazine, isobutyraldazine, methylethyl ketazine, 1,2-di-n-butylhydrazine, 1,2-diisobutylhydrazine, 1,2-di-sec.-butylhydrazine, 1,1'-azobutane, 1,1'-azoisobutane and 2,2'-azobutane. Vapor pressure curves and freezing points of 1,1'-azobutane, 1,1'-azoisobutane and 2,2'-azobutane have been determined and recorded. The kinetics of thermal decomposition of 1,1'-azobutane, 1,1'-azoisobutane, and 2,2'-azobutane in a flow system using hydrogen and helium as a carrier gases have been investigated. The investigation was carried out for two different concentrations of the azo compounds over a pressure range of 670 to 890 mm. Hg …
Geology Of The Upper Middle Creek Area Huerfano County, Colorado, J. H. Copeland
Geology Of The Upper Middle Creek Area Huerfano County, Colorado, J. H. Copeland
Open Access Master's Theses (through 2010)
The Sangre de Cristo Mountains of Colorado and New Mexico are, geologically speaking, relatively unknown. The equivocal nature of our knowledge of the range was a primary reason for studying a portion of it in some detail. Most of the previous studies have been concerned with the northern part of the range in Colorado, in the general area between Salida and La Veta Pass. This work has indicated that the complicated structure which characterizes the northern part of the range becomes simpler to the south. Therefore, a second objective of the current study has been to test this hypothesis. Thirdly, …