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Design and Properties of a Neon Filled Spark Chamber in a Magnetic Field

Description: Introduction: Recently a new type of charged particle detector, the so-called spark chamber, has been developed. The detector has certain advantages in high energy physics over bubble chambers aside from its much lower cost.
Date: May 1, 1961
Creator: Heyn, Maarten P.
Partner: UNT Libraries Government Documents Department

THE CARRIER-RECOMBINATION BEHAVIOR AND ANNEALING PROPERTIES OF RADIATION- INDUCED RECOMBINATION CENTERS IN GERMANIUM

Description: Carrier recombination and annealing of radioinduced recombination centers were investigated for both n- and ptype Ge. The experimental results are explained by a model in which recombination occurs at 0.36 ev above the valence band in gamma -irradiated, n-type Ge; the position of this level is shifted slightly downward for neutron-irradiated Ge. Trapping levels occur in As-doped Ge (at 0.17 ev above the valence band) which are not present in Sb-doped Ge. For p-type Ge, an energy level present in unirradiated Ge acts as a trapping center. A value for the electron capture cross section of n-type Ge is derived: 7 x 10/ sup -//sup 1//sup 9/ cm/sup 2/. The annealing properties of Sb- and As-doped Ge are very different. A model for the annealing results is given in which irradiation produces three major types of defects: interstitials, vacancies, and vacancy-interstitial pairs. The properties of each defect type are described. Association of vacancies with doping atoms is discussed. (D.L.C.)
Date: June 1, 1961
Creator: Curtis, O.L. Jr. & Crawford, J.H. Jr.
Partner: UNT Libraries Government Documents Department

A Theoretical Study of the Transient Operation and Stability of Two-Phase Natural Circulation Loops

Description: Mathematical models of the time-dependent behavior of two-phase natural- circulation loops were used to predict the operation and to explain the unusual instability sometimes observed. The initial results obtained for a loop similar to the Univ. of Minnesota loop were used to formulate a more complex and accurate model, and the predicted transient behavior was in close agreement with the experimental results from the Minnesota loop. For a 300psia, high-pressure loop, unstable oscillatory behavior was predicted under certain conditions and stable behavior under others. Closed unstable regions rather than limits were predicted, and the specifications of stability in terms of a single parameter were found to be impossible. The great difference in oscillatory frequencies observed at low and high pressures was found to be due largely to the system geometry. The criterion for the absence of oscillations was found to be similar to one of the criteria for stability of chemical reaction systems. (D.L.C.)
Date: June 1, 1961
Creator: Garlid, K.; Amundson, N. R. & Isbin, H. S.
Partner: UNT Libraries Government Documents Department

An Historical Perspective Accompanying The Development of A Program in Humanities for the Junior College Curriculum

Description: The volume contains a view of history based on ten time-zones. The countries of the world and the achievements in varied fields of learning are scanned in such a way as to present a general overview. Within this overview are summaries of work in certain fields, and there are glimpses of single individuals and events.
Date: January 1961
Creator: Trieber, Jacob Marshall
Partner: UNT Libraries

The Relationships between Eight Situational Factors and High and Low Scores on the Leadership Behavior Dimensions of Instructional Supervisors

Description: The problem of this study was to determine whether there is a significant relationship between certain situational factors and high and low scores on the leadership behavior dimensions of industrial supervisors. The behavior dimensions studies were the two dimensions of Consideration and Initiating Structure, as measured by the instrument used in the study.
Date: June 1961
Creator: Campbell, Ona Lee, 1908-
Partner: UNT Libraries

An Experimental Study of Critial Thinking in Student-Centered Teaching

Description: The problem of this study was to determine the effectiveness of student-centered teaching in producing significant changes in certain critical thinking abilities among selected freshmen students at North Texas State College.
Date: June 1961
Creator: Graham, Daniel W.
Partner: UNT Libraries

The Relationships between Teacher Morale and the Ability to Establish Rapport with Pupils and Other Selected Variables

Description: The problem of this study was to determine and analyze the relationships between teacher morale as determined by the Group Dimensions Descriptions Questionnaire and the ability to establish rapport with pupils as determined by the Minnesota Teacher Attitude Inventory. The purpose of this study was to discover possible implications from the relationships between teacher morale and the ability to establish rapport with pupils and other selected personal and professional characteristics.
Date: May 1961
Creator: Hill, Thomas Barlow
Partner: UNT Libraries

A Field Follow-Up Study of Beginning Elementary Teachers

Description: The present study was made to determine the relationship between the level of teaching effectiveness of beginning elementary teachers and three individual characteristics of prospective teachers. A secondary purpose was an attempt to improve the service rendered by the School of Education at North Texas State College, Denton, Texas, in the selection and guidance of students who indicate a desire to enter the program for preparing elementary teachers.
Date: June 1961
Creator: Tate, James Oliver, 1929-
Partner: UNT Libraries

Factors Related to Change of Major by College Students

Description: 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?
Date: August 1961
Creator: Firkins, Curtis James, 1906-
Partner: UNT Libraries

Relationships between Personality and Leader Behavior of Elementary School Principals

Description: The purpose of this study was to determine the relationships between certain personality traits and leadership actions of elementary school principals. To achieve this purpose it was necessary first to obtain a description of the leadership actions of elementary school principals. Second, it was necessary to obtain data concerning the personalities of these elementary school principals. Third, the significance of the relationships between personality and leadership actions was tested statistically. Fourth, the significant relationships between personality and leadership actions were expressed in the form of mathematical equations so that predictions concerning leader behavior could be made.
Date: August 1961
Creator: Fox, Augusta Meredith, 1930-
Partner: UNT Libraries

Development and Validation of a Sound Plan of Reorganization of the Public School Districts in Texas

Description: 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.
Date: August 1961
Creator: Gilliam, L. Camp
Partner: UNT Libraries

The Relationship between Dominative-Integrative Classroom Behavior and Selected Measures of Socio-Civic Attitudes of Students Preparing to Teach the Social Studies

Description: The purpose of this study was to make as analysis of the relationship between dominative-integrative classroom behavior and the mean scores on selected measures of socio-civic attitudes of students at North Texas State College preparing to teach the social studies during the year 1960-61.
Date: August 1961
Creator: Nicholson, Virgil Marion
Partner: UNT Libraries

An Analysis of the Utilization of the Sick Leave Program by Teachers in a Large City School System and a Test of the Program's Adequacy

Description: 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.
Date: August 1961
Creator: Rains, Sylvester Lee, 1928-
Partner: UNT Libraries

The Relationship between Developmental Task Situations and Children's Interests in Stories

Description: The problem of this study was to determine what relationship, if any, exists between middle-grade children's general and expressed interests in certain stories contained in selected reading textbooks and the developmental value of the stories. Specifically, three sub-problems were involved, as follows: 1. To determine the developmental value of certain stories found in selected reading textbooks. 2. To determine the general and expressed interests of children in the stories. 3. To compare the general and expressed interests of the children in the stories with the developmental value of the stories.
Date: August 1961
Creator: Worley, Stinson Ezell, 1927-
Partner: UNT Libraries

A Study of the Elementary School Principalship in Texas

Description: It was the purpose of this study to determine the present general status, thought, and practice of the elementary school principalship in Texas public school districts. More specifically, the problem was fourfold in nature: 1. To study the professional characteristics of the Texas elementary principal through an analysis of factors related to (1) his position, {2) his professional characteristics, and (3) his major responsibilities. 2. To evaluate certain aspects of the status, thought, and practice of the Texas elementary principal in light of what is considered most desirable in recent literature in the field to determine to what extent the Texas principal reflects the moat desirable characteristics. 3. To compare certain aspects of the present principalship with similar characteristics as found in previous studies of the Texas elementary principalship in order to determine trends. 4. To compare certain aspects of the Texas elementary principalship with the same aspects of the elementary principalship as described in a recent national study, in order to determine similarities and differences.
Date: August 1961
Creator: Youngblood, Chester Edward
Partner: UNT Libraries

The Development of a Program in Humanities for the Junior College Curriculum

Description: The purpose of this study is to develop a Humanities program for use in the junior college curriculum. This program shall derive as much as possible from a stated foundation of philosophy and shall be in accord with conclusions already achieved from research in the humane sciences.
Date: January 1961
Creator: Trieber, Jacob Marshall
Partner: UNT Libraries

Linear Algebras

Description: This paper is primarily concerned with the fundamental properties of a linear algebra of finite order over a field. A discussion of linear sets of finite order over a field is used as an introduction to these properties.
Date: August 1961
Creator: Smith, Nickie Lee
Partner: UNT Libraries

Differences in Katherine Mansfield and Anton Chekhov as Short Story Writers

Description: The purpose of this study is to examine the extent of Katherine Mansfield's literary indebtedness to Anton Chekhov. Throughout the critical writing about Mansfield there are many suggestions that her work is similar to that of Chekhov, but, these allusions are, for the most part, vague in pointing out specific likenesses.
Date: January 1961
Creator: Rowland, John N.
Partner: UNT Libraries

Relation of Dosage of Antiserum to Protection in Mouse Leukemia

Description: It is the purpose of this paper to attempt to confirm the work of Schlagenhauf and Ingebrigsten and to show the effects of repeated injections of guinea pig serum immunized with various strains of mouse leukemia.
Date: January 1961
Creator: Savage, Norman Lee
Partner: UNT Libraries

The Cherokee Indians in the American Revolution

Description: It has been the purpose of this study to look closely at the history of Cherokee relations with the European powers and ascertain the reasons for the Indians' rarely severed loyalty to the British crown. The writer has attempted to determine the causes for ineffective Cherokee resistance to the westward movement of American settlers and absence of offensive action during the Revolution.
Date: January 1961
Creator: Starling, Susanne
Partner: UNT Libraries