The beta decay of the radioactive members of the mass-eight and -twelve triads has been studied with a spiral-orbit spectrometer having a 1.3% resolution. The end point, half-life and log-ft values respectively are: for N{sup 12}, 16.37 {+-} 0.06 MeV, 11.43 {+-} 0.05 milliseconds, and 4.17; for B{sup 12}, 13.40 {+-} 0.05 MeV, 20.6 {+-} 0.2 msec and 4.11; for B{sup 8}, 14 MeV (broad), 0.75 {+-} 0.02 sec, and 5.72; and for Li{sup 8}, 13 Mev (broad), 0.87 {+-} 0.01 sec, and 5.67. The mass excesses in millimass units are: for N{sup 12}, 22.48 {+-} 0.06; for B{sup 12}, 18.19 {+-} 0.06; for B{sup 8}, 27.08 {+-} 0.13; and for Li{sup 8}, 24.97 {+-} 0.09. The shapes of the Kurie function for the mirror pairs indicate positron and electron transitions to the same levels of the daughter nuclide, with greater percentages in the positron branches relative to the ground-state transitions because of the higher energy available. The Li{sup 8} and B{sup 8} shapes are consistent with the shape of the alpha spectrum following the decay of the Be{sup 8} daughter. Less than 1% of the Li{sup 8} transition and less than 5% of the B{sup 8} transition go to …

The present study is intended to be, as far as possible, an exhaustive examination of sociometric status groupings in regard to the way in which members of the group rate themselves and the others in their groups concerning happiness, problems and worry.

The problem undertaken in this study was to evaluate the activity phase of boys' physical education programs in selected junior high schools of Texas. As a result of visitation and observation in a number of public junior high schools in the capacity of supervising teacher for physical education majors, it appears that many physical education programs were little more than loosely supervised play periods. Apparently there was room for improvement of these programs but a method for making judgments and recommendations required some type of measuring device. However, an examination of several existing measuring techniques failed to reveal any one devoted to the junior high school level or one concerned primarily with the activity program. As a means of improving existing programs, it was concluded that some new form of evaluation must be designed.

The purpose of the investigation is to present--chronologically, whenever possible--the growth of the Canadian oil industry from the days of earliest discovery to the present, with an eye on both historical growth and potential development.

Industrial arts has been taught in varying degrees in the elementary schools of Texas for a number of years. In some cases, industrial arts activities have been integrated with other subject matter areas, and in some cases they have been taught as a separate subject. There have been several studies made concerning what the nature and extent of industrial arts activities should be at the elementary level. Research indicates, however, that there has been no study made to determine if industrial arts activities could be used to enrich the elementary curriculum in the Fort Worth Independent School District. The problem of this study is to determine if there is a need for industrial arts activities to enrich the elementary curriculum in the Fort Worth Independent School District, Fort Worth, Texas.

It is the purpose of this paper to present a detailed account of the design and construction of this positive-ion source and associated equipment.

It is interesting to note that several of Ravel's compositions for the piano were successful only after he had orchestrated them. Ravel, a pianist, had a natural gift for orchestration, and when writing for the piano he seems to have projected his thoughts to the orchestra; thus some of his works are more successful' for the orchestra than for the piano. Since he orchestrated several of his own piano compositions, these present an excellent opportunity for a study of his orchestrations.

This study of decentralization of managerial authority looks at the nature of authority and its relationship to organizations; factors which indicate a basis for greater decentralization of managerial authority; case studies of corporations that decentralized managerial authority; and the human relations aspects of decentralization of authority.

The purpose of this thesis is to trace the history of the trumpet in chamber music through the first half of the 20th century. It aims to discuss the technical advances in the instrument and demonstrate the importance of the trumpet in this medium. Chamber music is defined, in this thesis, as all serious instrumental music for two or more instruments played with one instrument to a part. The selections have been chosen on the basis of recognized merit of the composer, the variety of instrumentation, and the availability of music.