The data from measurements of the density of tungsten, steel, aluminum, and PVC spheres are used to extrapolate the infinite density of something such as a neutron star. An apparatus that allows for precision measurements is described. A discussion on error analysis is appended. (KR)

Described is an interactive video system that reconstructs three-dimensional representations of the brain and its components from two-dimensional serial cross-sections. (KR)

Observes that there is as yet no comprehensive history of the Post-World War II "multiversity." Examines the development of Stanford University's Microwave Laboratory. Suggests a framework for the multiversity that includes large, well-funded laboratories, a department with weak central authority, and an emphasis on research over…

Described is the author's decision to help a student find alternatives to performing several terminal experiments on animals in a college physiology class. Replacement exercises used for studying the properties of muscle types are described. Details about the difficulties and successes of the entire experience are reported. (KR)

The language laboratory at New Trier High School (Winnetka, Illinois) is designed to facilitate the learning of foreign languages. Equipment includes videotape recorders (VCRs), audiocassette recorders, microcomputers, and printers. Teachers create listening, speaking, and video exercises for students to complete independently. Students' enjoyment…

Discusses the difficulties of attracting and maintaining skilled personnel in the environmental laboratory industry. Describes major factors contributing to the current situation and industry efforts to remedy the problems. (MCO)

Outlines the organization and activities of the Child Development Centre (CDC) of Aristotle University in Thessaloniki, which operates as a model preschool and kindergarten for over 300 similar institutions throughout Greece. The CDC utilizes art, music, visits to workplaces, movement activities, foreign languages and customs, computers,and free…

Describes a study conducted at the University of Missouri-Columbia of the influence of experience as writing center tutors on teaching assistants' classroom teaching. Reports findings concerning teaching changes, increased focus on higher-order concerns, increased empathy for students, different views of student-teacher relations, and attitude…

Includes "Laboratory Facilities Improvement" (Miller); "Remodeling Laboratories for Agriscience Instruction" (Newman, Johnson); "Planning for Change" (Mulcahy); "Laboratory Facilities Improvement for Technology Transfer" (Harper); "Facilities for Agriscience Instruction" (Agnew et al.); "Laboratory Facility Improvement" (Boren, Dwyer); and…

Explains that the writing center is a computerized tutoring room where high school students can get individualized help with their writing. Describes some of the activities and problems of one such center. Suggests that the center can help students learn to be good writers and become more familiar with computer technology. (SG)

Discusses a microcomputer program that was created to simulate the behavior of a computerized "animal" so that students could practice the shaping of behavior. Describes mathematical algorithms that allowed the "animal" to show gradual improvements in directional movements after appropriate shaping. Reports that students were…

A laboratory experiment designed to provide rapid, inexpensive student exposure to pharmacogenetics in drug elimination and patient therapy is described. The test, performed on students, determines expression of a drug metabolism enzyme following ingestion of a probe drug. (Author/MSE)

This article explains how animals are used in research in an effort to counteract animal rights literature. Reveals how medical professionals and others trained in scholarship have misquoted the scientific literature to bolster their claims against the utility of animal research. (PR)

Describes an assignment and the results of having elementary school students design their own interesting and exciting science classroom environment. (PR)

Antagonism is the production of substances by microorganisms that inhibit or prevent the growth of other bacteria. This paper demonstrates the antagonistic behavior of gram-positive coccus on the B. subtilis and Enterococcus faecalis gram-positive microorganisms, showing that the process of antagonism is sometimes dependent on the nutritional…