The purpose of this study was to compare motivations and influences of high school music students who express an interest in a career in music teaching and those who do not. A previous survey was ...adapted for the study and administered to a pre-college population that included musicians who stated a preference to pursue music teaching or other music careers and musicians who stated a preference for other nonmusic occupations. Items were analyzed using a discriminant analysis of principal components (DAPC) data reduction strategy, which used a principal components analysis as a first step to determine item loadings onto orthogonal components. The three occupation groups (music teaching, other music, and other nonmusic) were then compared using a discriminant analysis of the resulting components. The model correctly classified 69.8% of cases, with one significant component primarily separating both music groups from the nonmusic career group and three additional significant components separating the music teaching group from the other music careers group. Using this model, the choice of an occupation appears multidimensional, and discrete sources of influence (e.g., music teachers and music teaching experiences explored in prior studies) are not necessarily individually predictive of the overall choice to pursue music teaching.
The purpose of this instrumental multiple case study was to explore the roles that high school music educators and the experiences they provide play in influencing high school students’ decisions to ...pursue a career in music education. Four bounded systems, consisting of programs led by ensemble directors with documented records and reputations for helping matriculate music education students into undergraduate music education programs, were studied. Findings were organized into the following themes: (a) formative attraction to the profession, (b) differing approaches to encouragement, (c) forms of encouragement, and (d) life as a music teacher. Specific implications for practice for multiple stakeholders and implications for future research are provided based on these findings.
This reaction paper traces Maslow’s discovery of Daoism, which became a key element in his psychological system of creativity, growth, and interpersonal relations.
Developments in positron emission tomography (PET) technology have resulted in systems with finer detector elements designed to further improve spatial resolution. However, there is a limit to what ...extent reducing detector element size will improve spatial resolution in PET. The spatial resolution of PET imaging is limited by several other factors, such as annihilation photon non-collinearity, positron range, off-axis detector penetration, detector Compton scatter, undersampling of the signal in the linear or angular directions for the image reconstruction process, and patient motion. The overall spatial resolution of the systems is a convolution of these components. Of these other factors that contribute to resolution broadening, perhaps the most uncertain, poorly understood, and, for certain isotopes, the most dominant effect is from positron range. To study this latter effect we have developed a Monte Carlo simulation code that models positron trajectories and calculates the distribution of the end point coordinates in water for the most common PET isotopes used: 18F, 13N, 11C and 15O. In this work we present some results from these positron trajectory studies and calculate what effect positron range has on the overall PET system spatial resolution, and how this influences the choice of PET system design parameters such as detector element size and system diameter. We found that the fundamental PET system spatial resolution limit set from detector size, photon non-collinearity and positron range alone varied from nearly 1 mm FWHM (2 mm FWTM) for a 10-20 cm diameter system typical for animal studies with 18F to roughly 4 mm FWHM (7 mm FWTM) for an 80 cm diameter system typical for human imaging using 15O.
The petroleum, natural gas, and the chemical & petrochemical process industries, variously require the separation of mixtures -- whether of raw feedstream materials, reactants, intermediates, or ...products -- as comprising gases, liquids, or solutions. Membrane separations add another weapon to the arsenal of separation methods, including the upgrading of subquality natural gas reserves. This book furnishes the necessary derivations and calculations for numerically predicting the separations that can be obtained, based on the known respective membrane permeabilities of the pure components. A verstile text, Membrane Separations Technology is suitable both as a reference and a textbook for the practicing process engineer, the researcher, and chemical & petrochemical engineering faculty and students. * Has cutting-edge scientific methods for liquifying and transporting natural gas * Written for the engineer in the field, for easy access to important information * Also contains problems and solutions for the student and professor in chemical engineering departments
A paper on “The Search for Challenge” by sociologist David Riesman begins a new feature of the Journal of Humanistic Psychology (JHP). Periodically, various scholars in humanistic psychology will be ...invited to present their reactions to particular, important papers in the history of the field. Riesman, a leading social thinker in the post–World War II era, was a founding editorial board member of JHP. This article, published shortly before JHP was launched, has considerable relevance for our own time; the five scholars who have provided their reactions offer a diversity of intriguing viewpoints.
Maslow’s concept of self-actualization has been a bulwark of humanistic psychology for more than 50 years, and has increasingly gained international appeal beyond its original nexus within the United ...States. His description of the high achieving characteristics of self-actualizing men and women has influenced theorists and practitioners in such fields as counseling, education, health care, management, and organizational psychology. Through these same decades, Maslow’s formulation has also been criticized as promoting a hyperindividualistic, even narcissistic, orientation to personality growth. Because Maslow by temperament and intellectual style expressed himself in an ever-evolving set of speeches and writings that were seldom explicit about interpersonal relations, his actual outlook on the social world of self-actualizers has remained elusive. The focus of this article, therefore, is how Maslow depicted self-actualizing people with regard to five major interpersonal dimensions of life: friendship, romantic love, marriage and lasting intimacy, parenthood, and communal service. By pulling together Maslow’s comments primarily in his published works, and secondarily in his unpublished works-in-progress, it is possible to explicate his tacit viewpoint. Doing so will not only help dispel the misconception that Maslow depicted self-actualizers as loners or even hermits but also guide future theory and research on personality growth.
