The object of the work was to determine the molecular structure of AlH/ sub 3/, using the techniques of nuclear spin resonance.'' Attempts to prepare ether-free AlH/sub 3/ that were unsuccessful are described. Also it was not possible to observe the deuterium signal in AlH/sub 3/. It was possible, by the use of the proton signal of the ether in AlH/sub 3/, to obtain the nuclear spin resonance absorption curve for AlH/sub 3/ by subtracting out the contributions of the ether protons to the resonance signai. A model is proposed to explain the features of the nuclear spin resonance absorption curve. The existence of LiAl/ sub 2/H/sub 7/, which has been postulated elsewhere, is assumed in order to explain the datu obtained from high-resolution nuclear spin resonance experimeats. (auth)

An apparatus for rapidly mixing two solutions and recording the light absorption, which was developed by Connick and Below, has been modified. The mixing characteristics were studied and models were developed in an attempt to umder stand the observed mixing phenomena. The apparatus was applied to a study of the kinetics of the reactions Fe/sup +++/ + SCN/sup -/ = FeSCN/sup ++/ and Fe/ sup +++/ Cl/sup -/ = FeCl/sup ++/ in aqueous solution, with both reactions having the forward rate law STAd(FeX/sup ++/)/dt = k/sub 1/ (Fe/sup +++/) (X/sup -/) + k/ sub 2/ (Fe/sup +++/)(X/sup -/)/(H/sup +)!, where X/sup -/ represents either SC N/ sup -/ or Cl/sup -/. The rate constants k/sub 1/ and k/sub 2/ have been measured as a function of temperature, and the heats and entropies of activation have been calculated. Mechanisms for the observed rate law have been discussed and the entropies of activation were compared with those for analogous reaction rates and with some equilibrium entropies of complexing. A rate for chloride complexing of ferric ion was obtained from nuclear magnetic resonance studies and compared with the results of the spectrophotometric kinetic study. (auth)

An investigation of the inelastic and elastic reactions between high- energy neutrons nnd He nuclei was conducted with a cloud chamber filled with He and operating in a pulsed magnetic field of 21,700 gauss. Neutrons produced by bombardment of a 1/2-in. LiD target with 340-Mev protons in the 184-in. synchrocyclotron were collimated and passed through the 22-inch expansion cloud chamber, which was filled with He gas to a total pressure of 89.8 cm Hg. Exclusive of meson-producing reactions, the possible reactions are: Inelastic, He/ sup 4/(n,pn)t, He/sup 4/(n,d)t, He/sup 4/(n,2np)d, He/sup 4/(n, dn)d, He/sup 4/ (n,2n2p) n, He/sup 4/(n, 2n) He/s up 3/; and Elastic, He/sup 4/(n,n)He/sup 4/. The total number of events, for incident neutrons above 160 Mev, was normalized to the interpolated n-He/sup 4/ total cross section at 300 Mev, and absolute cross sections for the various processes were established. Energy and angular distributions of the reaction products were compared with available theoretical predictions and other experiments. A few cases of meson production were noted. (auth)

The Bevatron uses a system of electrodes through which the internal proton beam passes in order to continuously measure the magnitude and radial position of the beam. The bunched circulating beam induces a periodic voltage on the electrodes. This signal is amplified and displayed on an oscilloscope and also converted to direct current for operation of a recorder. Two types of electrode systems are used. The first is a large hollow box to provide beam magnitude signals for specialized monitoring and for primary calibration. The second system consists of two sets of smaller electrodes. One set provides beam radial-position information for tracking control, and the other provides beam magnitude information for magnitude control and for general distribution to experimenters associated with the Bevatron. A telemetering radio link is used to relay beam information to those in other areas. Problems associated with handling the beam signal are discussed, and the design principles involved in detection, amplification, and isolation of the signal are described. Calibration techniques, signal distribution facilities, and control features are also given. The systems described are stable and provide the desired information with a minimum of maintenance and operational difficulty. (auth)

Thesis presenting data taken on experimental nuclear magnetic moments for beta spectra of the mirror nuclei with A-19 to 39.

This study is an investigation of the theoretical accounting viewpoints and the accounting procedures used in business practice for the origination and administration of a self-insurance program. The purpose of this study is to compare the correct theoretical accounting procedures for self-insurance planning with those used in practice today.

The problem of this study is to determine the administrative practices for securing the optimum use of instructional space in colleges. This necessitates the development of an instrument to evaluate these practices.

The purpose of this study is to determine the general style characteristics of the works for solo trumpet by Alan Hovhaness, viz., Khrimian Hairig, Overture to Avak, Prayer of Saint Gregory, and Haroutiun. The musical elements of form, melody, harmony, tonality, rhythm, texture, and counterpoint are examined objectively in order to determine the essential features of the music. Further consideration is given to the idiomatic use of the solo trumpet in these compositions. Each composition is examined separately, the conclusions and generalizations of the style features being reserved for the final chapter.

This paper concerns the preparation of some bis derivatives of dialkylaminoalkoxypropionitirles from trimethylene, hexamethylene, octomethylene, and decamethylene bromides. These compounds are to be tested for curariform activity and anesthetic values by Parke, Davis and Company.

The purpose of this paper will be to compare the Hindemith theory of harmonic tension as set forth in his book, Craft of Musical Composition, with his actual use of harmonic tension in compositional practice. The compositions used for this study are Hindemith's Sonaten für Klavier, published in 1936, consisting of three sonatas*. Although these pieces were published one year before the theory book, it seems reasonable to assume that Hindemith was at least formulating the ideas that would go into his book, and quite possibly was already writing it. The copyright date of the book is 1937. Therefore, any conclusions derived from the following analysis will not be affected to any degree by the time lapse between the writing of the two works in question. Analysis of the Sonaten für Klavier by Paul Hindemith reveals the fact that each of the sonatas is very different from the other two; hence, conclusions which apply to all three works are not generally possible.

This study examines several of the Confederate military operations in Texas from the years 1861 to 1865, including early defensive moves, the Battle of Galveston and the Battle of Sabine Pass.

The purpose of this work, an analysis of the song cycle Dichterliebe (Op. 48) by Robert Schumann, is to recognize the special features of the songs which will contribute to their understanding and musical interpretation and performance. The Dichterliebe was chosen as the composition to be analyzed because of its prominent position in the vocal literature of the Romantic period.

This work attempts to establish some phenomenon of a rise in titer of C'3 and C'4 due to antigenic stimulation. Normal level of complement is established and compared to other workers as well as against guinea pig levels. Young rats were bled to establish normal levels of complement. The animals were then injected with an antigenic substance and after a period of seven days were bled again to determine the level of complement. Various antigenic and non-antigenic substances were used as well as normal saline injections for control.

The problem of this investigation is twofold. First, to demonstrate the effects of the variation of convulsive-nonconvulsive electroshock treatment used in this study in relation to memory alteration in schizophrenia as measured by the Wechsler Memory Scale. Second, to determine those aspects of memory that are the most affected, and those that are the least affected by this form of treatment.

This study of Franz Liszt presents the Hungarian master as a figure of conflicting forces, a sort of conflicting forces, a sort of Dr. Jekyl and Mr. Hyde of music. In other words, Liszt was a dual personality. In this study of Liszt's major piano works, it will become evident that several factors were vital in the ultimate realization of these works.

Preface -- Chapter I. Settlement and politics-- Chapter II. Early organization and secession -- Chapter III. German unionism and confederate service -- Chapter IV. Presidential reconstruction -- Chapter V. Congressional reconstruction -- Bibliography.

This thesis describes the synthesis of a series of 5-alkideniminoxy-5-phenylhydantoins for the purpose of studying their anticonvulsant properties.

This paper will be mostly concerned with matrices of infinite order with elements which lie in Hilbert Space. All the properties of real and complex numbers and all the properties of infinite series and infinite sequences that are not listed will be assumed.

To summarize in general the use of modes by Vaughan Williams, it could be said that the works that have been analyzed are characterized by frequent use of the traditional modes, but in a very free manner. The "Kyrie" of the Mass, "Pretty Bess," "Jolly Rutterkin" and Te Deum are confined somewhat closely to given modes, with some changes of mode, changes of tonality and use of altered chords. The "Gloria," "Credo," "Sanctus," "Osanna I," "Benedictus," "Osanna II" and "Agnus Dei" of the Mass, however, contain many striking chromaticisms. These chromaticisms are the result of use of many altered chords, a good deal of modulation and much combining of modes, often with startling cross-relations. The use of seventh chords in "Pretty Bess," "Jolly Rutterkin" and Te Deum further complicates the picture from that of the sixteenth century.

Although Willan is first and foremost a musician of the church, it is obvious that he has not cloistered himself in the organ and choir loft, as it were. As a composer he has written significantly in many fields, and as a teacher he has had a major influence in shaping the musical thought of a boundless number of Canadian musicians. As a musician of the church he has kept alive the great English traditions and made his own laudable and abundant contributions to church music practices. One of the first Canadian musicians of wide eminence, he has set an example worthy of the attention of younger Canadians who will contribute to the musical development of the nation.

Thesis discussing the reactions of mixed crystals of rare earth fluorides with fluorine gas. The reactions were "studied gravimetrically by determining the weight increases of mixed tetrafluoride samples upon exposure to fluorine at a pressure of 1 atmosphere and a temperature of 250°C...The nature of the phases produced upon fluorination was studied by x-ray diffraction methods."

The purpose of this study has been to examine the nutritional requirements of Rhodospirillum rubrum and, on the basis of the results, develop a culture medium which could be use to promote more rapid and abundant growth facilitating the laboratory cultivation and observations of the properties so exhibited.

The purpose of this study is to gather information related to the characteristics of two groups of undergraduate non-science majors; namely, those students who once considered science as a career and subsequently changed to a non-science major and those who have never considered a career in science. It is frequently observed that children in the elementary school have an intense interest in science. One of the principal concerns of this study is how and for what reasons has the interest in science changed between elementary school and college? It is also the purpose of this study to gather information related to the attitudes of these college students toward the science courses they have had in high school and toward their science teachers. In attempting to arrive at an answer, the group who once considered a science career and those who have never considered an occupational choice in a field of science will be compared in the following areas: 1. General information such as sex, age, size of high school attended, rank within their graduating classes, college classification and military experiences. 2. Occupations and hobbies of parents. 3. Experiences which may influence attitudes toward science such as elementary school science, high …

"The purpose of this study is to gather information concerning some factors which may have operated to influence science majors in North Texas State College toward science careers."--4.