A model of an endoreversible Carnot engine is considered where the piston moves with a constant speed "u." Expressions for the cycle time [tau] for the four branches, as well as output power, P[subscript W], are derived and the optimized root for maximum power is obtained in closed form. Our results are discussed in terms of the isothermal…

The second edition of "Introduction to Approaches in Music Therapy" includes a new introductory chapter that addresses historical perspectives on the approaches, a rationale for the categorization of approaches, and discussion on professional issues related to the use of these approaches. Each of the chapters addressing approaches includes updated…

The aim of this experiment is to study and calculate the kinetic constant of a Heck reaction: the arylation of but-3-en-2-ol by iodobenzene catalyzed by palladium acetate in presence of triethylamine in DMF. The reaction leads to a mixture of two ketones. Students use GC analysis to quantify reagents and products of reaction. They control the…

The series of experiments proposed for advanced undergraduate students deal with both standard organometallic preparative methods in dry anaerobic conditions and with a kinetic study of the mechanisms operating in the substitution of square-planar complexes. The preparation of organometallic compounds is carried out by transmetallation or…

Kinetics constitutes a core topic in both the lecture and laboratory components of lower- level chemistry courses. While textbook examples can ignore issues of time, temperature and safety, the laboratory can not. Reactions must occur slowly enough to be detected by students, occur rapidly enough for data collection in the few hours assigned to a…

A computational experiment is described for the organic chemistry laboratory that allows students to estimate the relative strengths of the intramolecular hydrogen bonds of usnic and isousnic acids, two related lichen secondary metabolites. Students first extract and purify usnic acid from common lichens and obtain [superscript 1]H NMR and IR…

Students' perceptions of their skills development and the overall value of their undergraduate project work were evaluated using data derived from questionnaires. Thirty-nine students completing their second year of study (i.e. prior to the commencement of project work) and 42 students completing their third-year project work took part. Thirteen…

In response to curricular changes at Muhlenberg College (Pennsylvania), emphasizing interdisciplinary exploration and a focus on writing, students in an introductory psychology course were assigned a paper examining a "hero" of their own choosing from a psychological perspective, from an ethical perspective, and from a viewpoint…

Educators, families, and media in increasing numbers are recognizing the unique role music plays in young children's development. More and more daycare, preschool, and early intervention centers offer employment opportunities that reflect the needs and attitudes of our ever-changing society. Furthermore, Federal and state regulations, a changing…

This booklet provides information to help prepare undergraduate students for academic internships with the federal government. Most interns serve without pay; however, the opportunity to observe and participate in government provides important guidance for future decisions, and even potential employment opportunities. The student should do…

Since the last publication of "Scholarships and Fellowships Available at Institutions of Higher Education" by the Office of Education as Bulletin 1936, No. 10, innumerable requests for current information have been received from school and college officials, parents, high-school and college students, and other persons interested in…