The effects of certain pulse-shaping networks on the signal-to-noise ratio of a nuclear pulse amplifier were considered. The shaping networks discussed are: equal RC-integrating and RC-differentiating time constant, single- delay-line clipper and RC integrator, and doubledelay-line clipper and RC integrator. The effects of these networks on the signal, when high count rates and overload pulses are present, were also considered. Equations and curves were developed for the energy resolution (signal-tonoise ratio) and resolving time (related to the ability to operate at high counting rates) of the networks. Experimental results are shown for the energy resolution of the types of pulse- shaping networks considered. (auth)

The properties of electrons in a gas and an external electric field, e.g., agitation velocity, free path, energy lost per collision, and collision cross sections, were determined for electrons of energy less than 2 ev in a large number of gases. The computations were made from previously measured values for Townsend's energy factor or the ratio of electron agitation energy to molecule thermal energy. Results are presented for hydrogen, nitrogen, carbon dioxide, methane, ethylene, cyclopropane, and argon. (D.L.C.)

Several features of the production of Na/sup 24/ and Mg/sup 28/ fragments produced in the interaction of protons and He ions with Cu, Ag, Au, and U were investigated. Formation cross sections were determined for He ions of different energies between 320 and 880 Mev and for protons of 700 Mev. Thick- target recoil experiments were performed at bombarding energies of 0.7 and 3 Bev for protons, and 880 Mev for He ions. Also given are some recoil measurements of Na/sup 24/ from Al. Analysis of data obtained with target materials heavier than Al showed that for the bombarding energies used, Na/sup 24/ and Mg/sup 28/ are probably produced by the cleavage of the target nucleus into two heavy fragmerts. One of these fragments has a mass approximately equal to the mass Na 4 or Mg/6 and the other contains most of the remaining mass of the target nucleus. However, Na/sup 24/ and Mg/sup 28/ are very probably not slowly evaporated particles nor products of a slow fission process. The experimental information covering fragmentation from photographic emulsion studies and radiochemical studies is discussed. The various mechanisms proposed are considered and a new one suggested. According to this new mechanism Na/sup …

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The purpose of this paper is to make a detailed study of vector spaces and a certain vector-like system.

Much controversy has surrounded recent American policy toward China. Books of various stripes--distortions, misrepresentations, emotional accounts, and purportedly scholarly studies--have dealt with the formulation of a China policy. Several of the objective studies have featured the role that politics played in reducing American freedom of action. The emphasis has been that, since American diplomatic strategy during the decade of the 1940's was a Democratic responsibility, Republican critics took political advantage of the China "tangle." As congressional criticism mounted, the framework within which the Truman Administration could evolve a policy was increasingly restricted. With the Communist victory in China and the subsequent Korean War, Democratic strategy had apparently backfired. The public became aroused, and policy makers have since had difficulty adjusting to realities.

This study was designed to determine the utilization of the sick leave program of a large city school system by teachers according to sex, age, experience, tenure, training, residence, and teaching assignment, and to determine if current sick leave allowances were adequate.

It shall be the purpose of this study to continue this delineation of the dynamics of anxiety. An attempt shall be made to study the nature of anxiety, especially in elementary school children, as it relates to three other factors: namely, intelligence, self-concept and ordinal birth position.

The first chapter outlines the history of percussion instruments used by Béla Bartók, The second chapter deals with the use of percussion by various composers from Bach's time up to the period of Bartók. Chapter three outlines how Bartók uses percussion instruments.

The purpose of this thesis is to present English opinion of Robert Browning, contemporary with him, from the anonymous publication in 1833 of his first poem, Pauline, through the appearance in 1868-69 of what is agreed to be his masterpiece, The Ring and the Book. This study will consider the acceptance of each of Browning's publications, in chronological order of their appearance.

With the exception of To Have and Have Not, the novels of Ernest Hemingway are set outside the United States; all, however, contain American characters. These Americans might be divided into three categories: American tourists; Americans who live abroad, but either do not like it or are not completely adjusted to it; the Hemingway heroes, characteristically American expatriates who are completely adjusted to and accepted in their alien environments. Toward the tourists, he maintains an attitude of contempt; toward the middle group, his attitude varies from disgust to sympathy; the heroes are, in various guises, Hemingway the expatriate, himself.

The problem of this study was to compare the attitudes toward youth of students enrolled in two selected programs of student teaching at North Texas State College.

This paper is the result of a study of triangular matrices with particular emphasis on those which are convergence preserving transformations.

The problem of this study was to develop and validate a sound plan of reorganization of the public school districts in Texas. It may best be stated if considered as two subproblems: (l) to develop and validate criteria for reorganization of public school districts in the light of sound guiding principles; and (2) to devise a plan for school district reorganization In Texas in the light of the criteria established.

The purpose of this paper is to construct the real number system. The foundation upon which the real number system will be constructed will be the system of counting numbers.

Since George Bernard Shaw claims that the third act of Man and Superman is a complete commentary on his philosophy, this thesis is a revealing of the philosophy demonstrated in the Dream Scene, and it is an intensive study of the third act based upon a reading of the play.

This investigation is designed to find the net rate of decrease in the component of velocity parallel to the original direction of motion of a proton moving through an electron gas exhibiting a non-spherical velocity distribution.

Tobias Smollet's purpose in writing was twofold: to entertain the reader and to satirize man and his society. To accomplish his aim, the author created eccentric personalities in the old Elizabethan humour convention. This thesis looks at Smollet's characterizations, especially of the eccentrics, in his novels.

The purpose of this thesis is to study energy losses suffered by protons in traversing a plasma through collision with the electrons of the plasma. For these electrons a variety of non-Maxwellian velocity distributions are assumed.

The problem of this study is to discover what factors are associated with change of major in college students. Questions that need to be answered are (1) Is academic success or failure related to change of major? (2) Is mental ability associated with change of major? (3) Is change of interest related to change of major? (4) Are there reasons that are personal and peculiar to the individual that are associated with change of major? (5) Is inadequate occupational information related to change of major? (6) Do social reasons such as a desire for a vocation with greater prestige, increasing interest in being of service to people, or having to conform to the wishes of parents and relatives relate to change of major?

A collective description and analysis of the first three Prussian sonatas of Bach

"The problem investigated in this thesis is that of determining the impact of the disestablishment of Camp Edward Gary on the economy of the city of San Marcos, Texas...it is anticipated that this study may contribute two additional outcomes of value: the first is a test of certain ideas in economic theory pertaining to recessions; and the second is an evaluation of the data pertaining to the economy of small communities...the data presented in Chapter II and the summarization of that information in Chapter III lead to the inevitable conclusion that the deactivation of Camp Edward Gary caused a recession in the City of San Marcos, Texas, which was shared in varying degree by virtually every element of the economy...it is further concluded that the impact of the loss of the military community was modified to some degree by the beneficial effects of the growth in its educational institutions and the fact that the loss was shared, although in a lesser degree, by other communities in the general area." --leaves 4, 5, 79

This study was conducted in an effort to determine whether or not the degree of growth in practical skills, personal and social development, and knowledge of subject matter content which an adolescent demonstrates is significantly related to the assumption of leadership roles in the classroom.

This study will be concerned with evaluating the degree of acceptance of rural students in an urban school. Because of increased interaction between the two groups on account of better modes of transportation, consolidation of schools, and a general trend in creating a more homogenous environment between the two groups the following null hypotheses have been formulated: 1. That there will be no significant difference in acceptance between the rural and urban pupils. 2. That there will be no significant differences in the number of cross-sex choices given or received by the two groups. 3. That there will be no significant discrimination between rural and urban school mates in clique formation.