Describes a low cost hydrometer which can be assembled by students using stock laboratory items with a total retail cost of 17 cents. Includes list of required materials (with supplies) and experimental results on the instrument's accuracy. (JM)

Materials needed, reaction involved, and potential hazards are provided for a demonstration of reversible oxygenation. Also discusses the importance of the reaction in biological systems, focusing on hemoglobin/myoglobin and their function in mammals. (JM)

Advocates the seminar/discussion method of teaching to facilitate comprehension/interpretation of scientific facts, with the understanding that acquiring facts is a prerequisite. Points out the increased burden on teacher time resulting from increased teacher-student contact and reiterates the motto "Theory guides, experiment decides," as the…

Surveyed what industry looks for in applicants for laboratory positions at bachelor's level, job opportunities, promotional opportunities, if continuing education is fostered, and how undergraduate curriculums can be improved to produce graduates with needed skills. Findings (among others) indicate that all employers stressed importance of…

Priorities for development of a successful career as a physiologist are described. Areas considered include: (1) adequate pre- and post-doctoral training; (2) research specialty; (3) selection of department/institution; (4) productivity; (5) research grant support; and (6) the training of doctoral students and fellows. (JN)

Student teachers exposed to combined course on science history/philosophy showed increased understanding of the nature and language of science as result of the course. Indicates that such a course could enhance prospective science teachers' understanding of science and consequently the students they will teach after training. (Author/JN)

Provided are reviews of science equipment/apparatus. Items reviewed include: Harris Micro-ecology tubes; Harris chromosome investigation kit; Harris trycult slides; a pressure cooker with thermometer; digital pH meter; digital scaler timer; electrical compensation calorimeter; and Mains alternating current ammeter. (JN)

Suggests general chemistry, organic chemistry, and biochemistry content for a two-semester, health-related, chemistry course sequence. Indicates that basic principles should be emphasized and that (when appropriate) these principles should be discussed with applications to health care. Other issues related to chemistry for health-related programs…

Preparation and testing of a cadmium selenide photoelectrical solar cell was introduced into an environmental chemistry course to illustrate solid state semiconductor and electrochemical principles. Background information, procedures, and results are provided for the experiment which can be accomplished in a three- to four-hour laboratory session…

The composition and dynamics of the earth's atmosphere are discussed, considering the atmosphere's role in distributing the energy of solar radiation received by the earth. Models of this activity which help to explain climates of the past and predict those of the future are also considered. (JN)

Defining development as some combination of improving the standard of living and quality of life, meeting basic needs, and increasing per capita gross national product, this article discusses the role science and technology can play in developing countries. Considers technology transfer, appropriate technology, and other issues. (JN)

Interactive video (computer-controlled video instruction) has the potential to transform the educational delivery system in public education, including bringing down educational costs. Fiscal demise of public education, current uses of technology in education, interactive video courseware, production considerations, and future prospects are…

The greatest challenge for information processing technology is the application of technology in improving the human condition. The need for university-industry cooperation to meet this challenge is addressed, focusing on International Business Machine's (IBM) Departmental Grant Program and other IBM programs. (JN)

Describes rationale for and advantages of using programed study aids in solving organic chemistry problems. Includes examples of these programed, multi-step aids which provide leading questions, factual information, and in some cases, the logical thinking required to arrive at correct (although short) answer. (JN)

Background information and procedures are provided for an experiment to prepare three metal derivatives of dimethyl sulfoxide (DMSO) and to determine some structural features of these derivatives based on their infrared spectra. Results and discussion of reactions involved are also provided. (JN)