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Articles 11071 - 11100 of 12097
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Study Of The Stereochemistry Of A Carbanion Generated From An Azoacetate, Nguyen Thanh Buu
Study Of The Stereochemistry Of A Carbanion Generated From An Azoacetate, Nguyen Thanh Buu
Masters Theses
Introduction
The reaction of lead tetraacetate with ketohydrazones to form azoacetates has been reported recently by Iffland, Salisbury and Schafer (13) and may be represented by the following equation:
R2C=N-NH-R' + Pb(0Ac)4 → R2C-N=N-R' + Pb(OAc)2 + HOAc OAc
Of principal interest has been the base-catalyzed decomposition of an azoacetate in a protonic solvent to give a ketone, a hydrocarbon, nitrogen and an acetate salt. The following sequence of steps has been proposed to account for these products (11).
Aminomethylation And Hydroxymethylation Of 6-Mercaptopurine And 6-Alkylthiopurines, Charles P. Bryant
Aminomethylation And Hydroxymethylation Of 6-Mercaptopurine And 6-Alkylthiopurines, Charles P. Bryant
Masters Theses
Introduction
The Mannich reaction and hydroxymethylation were used to prepare analogs of 6-mercaptopurine as possible antimetabolites. Physical and chemical methods were used to elucidate the structures of the compounds prepared.
An Investigation Of The Relationships Between Judgements Of Esophageal And Artificial Larynx Speech Made By Sophisticated And Naïve Judges, Gerald Robert Moses
An Investigation Of The Relationships Between Judgements Of Esophageal And Artificial Larynx Speech Made By Sophisticated And Naïve Judges, Gerald Robert Moses
Masters Theses
The Background and Purpose of the Study
Introduction
Laryngectomy, the surgical removal of the larynx, is performed to save life threatened by a carcinomatous condition of the larynx. This surgical procedure is also performed when necessitated by accident, injury or other pathologies of the larynx. (35).
There are living, in the United States, an estimated 15,000 to 20,000 individuals who have undergone surgical removal of the larynx due to the carcinomatous condition of that organ (33). It is probable that the total population of laryngectomized persons would exceed this number if statistical information were available concerning the number of laryngectomies …
A Study Of Attitudes And Opinions Of Michigan Secondary-School Administrators About Alcohol Education Programs, Joseph V. Coe
A Study Of Attitudes And Opinions Of Michigan Secondary-School Administrators About Alcohol Education Programs, Joseph V. Coe
Masters Theses
The purposes of this study were to determine, through the use of a questionnaire: (1) the awareness and attitudes of administrators concerning the State's requirement for the teaching of alcohol education; (2) the administrator's opinion of the adequacy of teacher-training institutions in preparing teachers to conduct the instruction of alcohol education; (3) the time allotment and placement of alcohol education in the individual school programs; (4) the administrator's evaluation of the adequacy of textbooks in their coverage of information about alcohol; (5) the degree to which the individual schools are helping their teachers prepare this part of the curriculum; and …
An Investigation Of Adaptation To The Delayed Auditory Feedback Effect By Normal Speakers, Nelson H. Bormann
An Investigation Of Adaptation To The Delayed Auditory Feedback Effect By Normal Speakers, Nelson H. Bormann
Masters Theses
Introduction
Research is being conducted in numerous areas of interest in an effort to better understand the functionings of the various speech deviations. One promising area of investigation is studying speech production as an automatic-control system or a servosystem. Interest in studying the theories of servosystems was greatly stimulated by the work of Nobert Wiener, who first formulated and developed the science of cybernetics. An integral aspect of cybernetic theory is the concept of controlling the behavior of a system by monitoring and evaluating the system's own output. Wiener stated that, in its simplest form, "...the feedback principle means that …
Banesism And Molinism In Theory And Practice, Burns K. Seeley
Banesism And Molinism In Theory And Practice, Burns K. Seeley
Masters Theses
Last paragraph of Introduction:
The purpose of this paper is to acquire a better understanding of the relationship between grace and tree will, that is, the paradox between the omnipotence of God and human free will. More specifically speaking, this paper will deal with two historical approaches to the problem, namely, Baneziem and Molinism. At the onset we shall learn something about Domingo Banez, O.P. and Luis de Molina, S.J. who were largely responsible for the systems which bear their names. We shall then learn something or the historical circumstances which produced Banezism and Molinism and also some or the …
An Exploratory Study Of Deferred Gratification Patterns Of Junior High School And Senior High School Drop-Outs And Part-Time Attenders, Charles T. Woods
An Exploratory Study Of Deferred Gratification Patterns Of Junior High School And Senior High School Drop-Outs And Part-Time Attenders, Charles T. Woods
Masters Theses
Introduction
The concept of Deferred Gratification refers to the practice of postponing immediate satisfactions so that future goals may be gained. Today's activities are view-example, renouncing emotional impulses will permit eventual emotional satisfaction. Education is viewed as an investment in the future prospects. Saving money is done for future satisfactions. Putting off marriage until one has a good job is perceived as the means to greater mobility.
The utility of Deferred Gratification Patterns (DGP) is in its relationship to social class and social mobility. This is seen in that some realize that social mobility, upward or downward, is a probability …
Nuclear Magnetic Relaxation And Diffusion In Paraffin Oil, David E. Parker
Nuclear Magnetic Relaxation And Diffusion In Paraffin Oil, David E. Parker
Masters Theses
Introduction
Since the introduction of the spin echoes technique by E. L. Hahn1 many studies have been made in the determination of the spin relaxation T2, spin-lattice relaxation T1, and the diffusion rates in gases, liquids2-5, and solids6-10. Hahn's methods were later improved by Carr and Purcell11. The Carr-Purcell method serves as the basic technique for this study.
Several studies have been published on the relaxation and diffusion rates in hydrocarbons12. These studies have shown:
1. The spin relaxation time T2, is independent of the …
The Polarizing Effects Of Inhibitors Upon The Reaction Of Iron With Hydrochloric Acid, Duane L. Mickelson
The Polarizing Effects Of Inhibitors Upon The Reaction Of Iron With Hydrochloric Acid, Duane L. Mickelson
Masters Theses
Introduction
Corrosion inhibitors have been widely studied. Electrical methods of study have been utilized (7) (10) (24) and polarization curves (2) (6) (18) (26) have been plotted by many observers in studying different aspects of corrosion. In this research the measured polarizing currents a.re used strictly in an effort to find out how the corrosion inhibitors affect the anodic and the cathodic reactions.
Interests, Attitudes And Personality Patterns Of Undergraduate Students In Speech Pathology And Audiology, Sandra Mary Henderson
Interests, Attitudes And Personality Patterns Of Undergraduate Students In Speech Pathology And Audiology, Sandra Mary Henderson
Masters Theses
Chapter I
The Problem and Its Background
Introduction
Over the past several decades there has been increasing interest in the occupational choices of men and women, and the interests and attitudes associated with various professional groups. Since occupations are becoming increasingly more specialized, employers and educators have found that those people who perform best in the position of their choice are those who exhibit certain interests and attitudes with regard to their occupation. Colleges emphasize the necessity of counseling in order to enable students to effectively choose general areas of concentration. The fields of study chosen by students are a …
An Exploratory Investigation Of The Indifferent Pattern Of Accommodation To Work-Related Organizations, John E. Blissick
An Exploratory Investigation Of The Indifferent Pattern Of Accommodation To Work-Related Organizations, John E. Blissick
Masters Theses
Introduction
In recent years there has been growing interest in the nature of workers' attitudes, values, and behavior.1 One area of special concern has been a particular behavior pattern frequently observed among blue collar workers called indifference, and it generally refers to a lack of identification with one's work and work organization. Indifference is a phenomenon which occurs among almost all major groups of workers to some degree, but it has been observed most often and in its most intense forms among blue collar workers. In various forms it has been called apathy, noninvolvement, and un-affectedness. It has been …
Social Distance Attitudes Of College Students Toward Three Minority Groups, Dennison W. Nichols
Social Distance Attitudes Of College Students Toward Three Minority Groups, Dennison W. Nichols
Masters Theses
Introduction
This study is an endeavor to add to the already existing scientific information in regard to man's social relations with his fellow men. More exactly, the purposes of this research are: (1) to gain a better understanding of prejudice among college students toward both stereotype images and "real" described persons belonging to the Jewish minority, the Negro minority and the homosexual minority, (2) to explore the possibility of their being a relationship between social-distance attitudes of these students toward these minorities and the personal, economic and certain other factors influencing these students, and (3) to consider the significance of …
Synthesis Of Potential Anti-Tumor Agents Related To Ethanolamine. I. Phenoxyacetic Acid Derivatives, Kenneth Wayne Rodarmer
Synthesis Of Potential Anti-Tumor Agents Related To Ethanolamine. I. Phenoxyacetic Acid Derivatives, Kenneth Wayne Rodarmer
Masters Theses
Introduction
Derivatives of phenoxyacetic acid (PAA), because of their activity as synthetic auxins, have long been of interest in the botanical sciences. PAA itself was noted (29) to have some auxin activity. However, real interest in PAA derivatives awaited the establishment of 2,4-dichlorophenoxyacetic acid (2,4-D) as a powerful, selective herbicide (12). An enormous number of PAA analogs and homologs have been investigated for their potential in the herbicide industry, and the statistical evidence from these investigations has been used as the basis for several interesting and sometimes conflicting theories of auxin mechanisms (17, 26, 23, 27).
Physiological effects of PAA …
Helianthus Annuus - The Separation And Identification Of A New Fatty Acid, Donald C. Gruber
Helianthus Annuus - The Separation And Identification Of A New Fatty Acid, Donald C. Gruber
Masters Theses
Introduction
The term "fatty acids" was first applied principally to saturated, monobasic carboxylic acids and especially to long chain acids derived from animal and vegetable oils. As time passed and the knowledge of natural fats increased, polyunsaturated, hydroxy, keto and branched chain acids were also found as constituents of these fats and oils and these also came under the heading of fatty acids. Even acids containing alicyclic substituents were found.
More recently the term 11 fatty acid" has been applied to include saturated and unsaturated monobasic carboxylic acids and several other series of substituted acids having carbon skeletons similar to …
Anglo-American Isthmian Diplomacy And The Clayton-Bulwer Treaty, George W. Shipman
Anglo-American Isthmian Diplomacy And The Clayton-Bulwer Treaty, George W. Shipman
Masters Theses
Introduction
The Panama Canal is one of the major commercial waterways of the world and, furthermore, it is vital to the defence of the United States. ·Before this canal could be constructed, it was necessary to persuade the British government to give up its right to share with the United States the building of an isthmian canal. The Clayton-Bulwer treaty of 1850 had provided that neither the United States nor Great Britain would carry out the project singly. Later through the Hay-Pauncefote treaty Great Britain agreed to abrogate the Clayton-Bulwer treaty and allowed the United States alone to build and …
Negligence In The Operation Of Business Aircraft, Daniel J. Garber
Negligence In The Operation Of Business Aircraft, Daniel J. Garber
Masters Theses
Introduction
Basis for Business Aircraft
The use of airplanes as a production tool for executives and supervisory personnel by business firms in practically all fields of endeavor is ever increasing. This is true even though the airlines have largely substituted pure jet aircraft for piston powered airplanes and turbo-propelled ships on the trunk routes. This makes it more difficult for the business aircraft to save the executives of a company time and money by cutting down transportation waste in obtaining more hours of usefulness from those persons using business aircraft transportation and less expense for employee's hotel, meals and other …
Reaction Of Dihydropyran With Substituted Benzenesulfonyl Azides, Douglas L. Rector
Reaction Of Dihydropyran With Substituted Benzenesulfonyl Azides, Douglas L. Rector
Masters Theses
Introduction
The intent of this investigation was to study the addition of arylsulfonyl azides to vinyl ethers, specifically 2,3-dihydro-4H-pyran, and to establish by chemical and physical methods the structure of the adduct.
The Utilization Of Artillery And Mortars As Infantry Support Weapons In The Chaco War, Charles John Goodall
The Utilization Of Artillery And Mortars As Infantry Support Weapons In The Chaco War, Charles John Goodall
Masters Theses
I. The Background of the Conflict
In the summer of 1932, while the world's attention was focused upon Japanese aggression in Manchuria, a border skirmish in the upper reaches of the Plata valley ignited a conflict which could not be extinguished by the good offices of the Pan-American Union or the peace-making machinery of the League of Nations. The prize in question, nearly one hundred and fifty thousand square miles of savanna and swamp, would be minuscule in comparison with the territorial acquisitions of the dictators of that era, but to the two politically unstable and highly nationalistic nations contesting …
Land Utilization In The Allegan State Forest: A Historical Geography, Martin Lemerand
Land Utilization In The Allegan State Forest: A Historical Geography, Martin Lemerand
Masters Theses
Introduction
In Allegan County, Michigan, there exists an area of land known as the Allegan State Forest (Figs. 1 and 2). The Forest compromises 35,755 acres of land and is located just west of the city of Allegan.1 It is an area primarily noted for its forestry, wildfire conservation, and recreational facilities. Before becoming a state forest and prior to the 1930's, this land passed through sequential occupance by Indians, pioneers, lumberman, and farmers. When the forest area was first settled, the land was abundantly covered with trees. The trees soon became the victims of the lumbermen's axe, and …
The Evolution Of The Division For Girls And Women's Sports Of The American Association For Health, Physical Education And Recreation And Of The Women's Committees Of The Amateur Athletic Union Of The United States, Paula Ferguson
Masters Theses
No abstract provided.
The Resource Base For Water-Oriented Recreational Areas In Coles And Cumberland Counties, Roger J. Barry
The Resource Base For Water-Oriented Recreational Areas In Coles And Cumberland Counties, Roger J. Barry
Masters Theses
No abstract provided.
Effect Of Calcium Lignosulfonate On Properties Of Concrete At Early Ages, Lawrence Kong-Pu Wang
Effect Of Calcium Lignosulfonate On Properties Of Concrete At Early Ages, Lawrence Kong-Pu Wang
Masters Theses
"The objective of this investigation was to determine the effects of calcium lignosulfonate on the physical properties of concrete. Calcium lignosulfonate used as an admixture was tested for its effect on the tensile and compressive strength of plain concrete cylinders, and for its effect on the flexural strength of plain concrete beams. The effect of the admixture on shrinkage, slump, air content and unit weight was also studied. the test results showed that calcium lignosulfonate reduces the amount of water required to make a workable concrete mix; a more workable mix saves money because it is easier to place, thus …
Studies On The Conversion Of Indole Acetic Acid And Oxindole Acetic Acid By Hygrophorous Conicus, Barbara Ruth Patterson
Studies On The Conversion Of Indole Acetic Acid And Oxindole Acetic Acid By Hygrophorous Conicus, Barbara Ruth Patterson
Masters Theses
"The fungus, Hygrophorous conicus, produces the enzyme, indole acetic acid oxidase, when grown in the presence of indole acetic acid (IAA) or tryptamine. The IAA acts both as an inducer and a substrate for this intracellular enzyme. The product of the oxidation catalyzed by the IAA oxidase is oxindole acetic acid (OIAA). Since the IAA and OIAA absorb maximally at two different wavelengths the use of spectrophotometric analysis was possible for assaying for the IAA oxidase activity. Paper chromatography was used for qualitative identification of the IAA and OIAA. The rate of growth and the rate of formation of the …
Solid Solubility Of Sulfur, Selenium, And Tellurium In Molybdenum At 1100°C, Lattice Constants Thermal Expansion Coefficients, And Densities Of Molybdenum And The Molybdenum-Base Alloys, Ramesh Purushottamdas Shodhan
Solid Solubility Of Sulfur, Selenium, And Tellurium In Molybdenum At 1100°C, Lattice Constants Thermal Expansion Coefficients, And Densities Of Molybdenum And The Molybdenum-Base Alloys, Ramesh Purushottamdas Shodhan
Masters Theses
"With the ever increasing requirement for engineering materials having adequate mechanical properties at ever higher temperatures there has been, in quite recent years, a considerable increase in the study of molybdenum and molybdenum-rich alloys. Since 1945 extensive information on the engineering properties of molybdenum and molybdenum-base alloys has gradually become more available ... The present work involves the determination of solid solubility of elements with large atoms such as sulfur, selenium, and tellurium in molybdenum at 1100°C using the parametric method. Furthermore, the thermal expansion coefficients of pure molybdenum and of molybdenum-base solid solutions containing the elements just mentioned were …
Stereochemistry Of Chlorinated Diels-Alder Adducts, Harry R. Musser
Stereochemistry Of Chlorinated Diels-Alder Adducts, Harry R. Musser
Masters Theses
"Hexachlorocyclopentadiene and related compounds have been studied extensively in connection with Diels-Alder reactions. Many of the adducts formed are used as intermediates in insecticide syntheses. It is of interest to study the stereochemistry of the adducts of one of the hexachlorocyclopentadiene derivaites. 5,5-Dimethoxy-1,2,3,4-tetrachlorocyclopentadiene and various dienophiles, when allowed to react, yield compounds of the bridges bicyclo [2.2.1] hept-2-ene series. The study of the endo and/or exo configuration of various functional groups such as carboxyl, aldehyde, and hydroxymethyl can be related to the known exo-5-hydroxymethyl1-1,2,3,4-tetrachlorobicyclo-[2.2.1] help-2-ene-7-one"--Introduction, page [1].
Discharge Characteristics Of Side Weirs, Edgar Snowden
Discharge Characteristics Of Side Weirs, Edgar Snowden
Masters Theses
"The purpose of this study is to investigate the division of flow of water in a flume of rectangular cross-section when the flume is provided with a side weir. An equation has been derived so that the quantity of water flowing over the side weir compared to the quantity of water flowing in the main channel can be predicted. This ratio is acceptable only within the ranges of heads, velocities, and weir lengths imposed by the geometry of the system tested"--Abstract, page ii.
An Instrument For The Measurement Of Anelastic Properties Of Glass, Thomas Frederick Miller
An Instrument For The Measurement Of Anelastic Properties Of Glass, Thomas Frederick Miller
Masters Theses
"An inverted torsion pendulum for measuring the internal friction and dynamic shear modulus of glass fibers over an extended temperature range has been constructed and calibrated. The calibration consists of the determination of the moment of inertia. Extraneous damping losses were investigated and primary sources were found to be (1) the suspension thread, (2) the method of securing the fiber and (3) air damping. Anelastic measurements were made on an annealed vitreous silica fiber and a soda-lime-silica fiber"--Abstract, page ii.
Thermal Hydrolysis And Structure Studies On Cobalt (Ii) Acetate, Russell J. Hesch
Thermal Hydrolysis And Structure Studies On Cobalt (Ii) Acetate, Russell J. Hesch
Masters Theses
"The object of this study was to investigate the structure of cobalt (II) acetate, isolated from glacial acetic acid, without recourse to standard x-ray methods"--Introduction, page 1.
The Geology Of The Interstate Highway 244 And 44 Exchange, Kirkwood, Missouri, John Neil Thomas
The Geology Of The Interstate Highway 244 And 44 Exchange, Kirkwood, Missouri, John Neil Thomas
Masters Theses
"During the summer of 1964, construction was completed on the intersection of Interstate Highways 244, 44 and U.S. Highway 66, one mile southwest of Kirkwood, Missouri. during the construction of the interchange, numerous artificial exposures of rocks of the middle Mississippian Meramecian Series were exposed. This provided an excellent opportunity for examining fresh exposures near the type Meramecian Series. The formations of the area were studied, and startigraphic [sic] sections were prepared from three of the more complete sections that were measured and described. The highway cuts expose complete sections of the Warsaw and Salem formations, and the lower part …
Thin Film Resistor Deposition, Rollie R. Herzog
Thin Film Resistor Deposition, Rollie R. Herzog
Masters Theses
"Thin film techniques may be the key to future miniaturization of electrical equipment. The purpose of this thesis was to develop procedures for deposition of thin film resistors and to test these deposited resistors. Starting with a vacuum system, equipment was designed and built to hold and heat the substrate, monitor the substrate temperature and deposited resistance, and to evaporate the material to be deposited. Resistors were deposited and tested for resistance between resistors, capacitance between resistors, and resistance of resistors. A heat aging test was also used comparing resistors with and without a silicon monoxide coating"--Abstract, page ii.