Described is an experiment in which the student can ascertain the meaning of a negative result from a qualitative test by performing a more sensitive quantitative test on the same sample. Methodology for testing urinary glucose with a spectrophotometer at 630 nm and with commercial assaying glucose strips is presented. (MVL)

Discusses the history and development of Plasma Desorption Mass Spectrometry to determine molecular weights and structures of proteins and polymers. Outlines theory, instrumentation, and sample preparation commonly used. Gives several examples of resulting spectra. (ML)

The outline for a unit on the chemistry of fitness and nutrition is presented. Topics discussed include the organic basis of life, functional groups, kitchen experiments, micronutrients, energetics, fitness vs. fatness, current topics, and evaluation. This unit reviews the basic concepts of chemical bonding, acid-base chemistry, stoichiometry, and…

Background: Sex-differences exist in some areas of human social behaviour. In animals, foetal testosterone (fT) plays a central role in organising the brain and in later social behaviour. fT has also been implicated in language development, eye-contact, and spatial ability in humans. Methods: Fifty-eight children (35 male and 23 female), whose fT…

When the author began teaching as a young assistant professor at Caltech in 1966, his assignment was to take over the undergraduate biochemistry course taught for many years by Henry Borsook, who was about to retire. Students dreaded this course. Having delighted in biochemistry during his graduate training at Stanford, he was determined to put…

This report, one of a series of country studies on higher education and employment particularly in continuing professional education, contains two papers on recent developments in Yugoslavia. The first presents the findings of a study of continuing professional education at Belgrade University in Serbia and at Titograd University in Montenegro.…

Project Chemlab was designed to prepare an "Annotated List of Laboratory Experiments in Chemistry from the Journal of Chemical Education (1957-1979)" and to develop a computer file and program to search for specific types of experiments. Provided in this document are listings (photoreduced copies of printouts) of over 1500 entries…

Eight examples of innovative and outstanding chemistry programs are described. These programs were selected using state criteria and at least four independent reviewers. While Project Synthesis offered a desired state, these examples of excellence provided views of what is already a reality. Included are the goals of an exemplary science program…

Nutrition is well-recognized as a necessary component of educational programs for physicians. This is to be valued in that of all factors affecting health in the United States, none is more important than nutrition. This can be argued from various perspectives, including health promotion, disease prevention, and therapeutic management. In all…

Nutrition is well-recognized as a necessary component of educational programs for physicians. This is to be valued in that of all factors affecting health in the United States, none is more important than nutrition. This can be argued from various perspectives, including health promotion, disease prevention, and therapeutic management. In all…

This magazine is designed for teachers and students in junior and senior high schools. It is intended to help students become more aware about what scientists and engineers do, what's new and exciting in the fields of science and engineering, and what satisfactions might be expected from a career in one of the many different areas of science and…

DATA FROM RECENT COMPREHENSIVE STUDIES OF THE PATHOLOGY OF MENTAL RETARDATION ARE ASSEMBLED, INCLUDING MATERIAL ON ETIOLOGY, MORPHOLOGY, BIOCHEMISTRY, AND LABORATORY DIAGNOSIS. AREAS COVERED ARE (1) GENETIC CAUSES OF MENTAL RETARDATION, (2) DISORDERS OF GESTATION, (3) BIRTH INJURY, (4) GENERAL CONSIDERATIONS OF POSTNATAL CAUSES OF MENTAL…

A discussion of the incidence of epilepsy is followed by a discussion of etiology including the following causes: genetic and birth factors, infectious diseases, toxic factors, trauma or physical agents, heredofamilial and degenerative disorders, circulatory disturbances, metabolic and nutritional disturbances, and neoplasms. Epileptic seizures…

Appraises current organic courses and discusses topics which could be strengthened or dropped. Criticizes the current structure of organic texts and stresses the need for inclusion of useful reactions and mechanisms only. (ML)

Describes an experiment that provides a fundamental understanding of the kinetics of the enzyme papain. Discusses background, materials, procedures and results. Mentions analogous experiments that can be conducted with enzymatic contact-lens cleaning solutions. (CW)