This study investigated the effects of learner-generated pictures on science learning relative to both a verbal strategy and a control condition, and to determine the role of individual differences. Results revealed weak effects favoring a drawing strategy for males and females, and a holistic strategy for females only. (Author/GK)

Four means of altering fat levels in laboratory mice, contrasting invasive injection techniques with non-invasive dietary and behavioral means, are described. Relates these investigations concerning obesity to the practicality of using animal models as an approach in searching for physiological knowledge about human beings. (CS)

Investigates the effect of mastery testing on student performance in an introductory college physics course at Cornell Univeristy, Ithaca, New York using an interview technique with a sample of 22 students. (HM)

Discusses the role of individualized instruction (II), and educational innovation in general, in the back-to-basics movement. Describes several approaches to innovation and lists some common reasons for the failure of innovative instructional practices. (CS)

Provides general guidelines for conducting educational research in the field of individualized instruction. (CS)

Presents a brief review of the historical background of Personalized System of Instruction (PSI) by one of its founders. Reflects on the past and future for this form of individualized instruction. (CS)

Presents the aims of the University of Amsterdam's Center for Research into Higher Education and describes two projects: (1) PLATO Pilot Project Amsterdam, a university-wide program in computer-assisted instruction; and (2) "Exercise in Chemical Problem-Solving," computer simulations designed to aid students in developing problem-solving…

A sexual dimorphism in the functional asymmetry of the damaged human brain is reflected in a test-specific laterality effect in male patients, explaining some contradictions concerning the effects of unilateral brain damage on intelligence in studies in which the influence of sex was overlooked. (Author/SK)

A learning cycle involves the active participation of students in exploration, invention, and application phases. Describes one such learning cycle dealing with classification of matter and designed to provide students with an understanding of the terms: atom, molecule, element, compound, solution, and heterogeneous matter. (Author/JN)

Describes the use of microcomputers in data acquisition and simulation of physical phenomena. Discusses digital and analog inputs/outputs, simulations, and interactive programs in mechanics. Includes examples of computer programs. (SK)

Explains that the result of collision experiments with a linear arrangement of several identical elastic balls cannot be predicted solely from the conservation laws and energy and momentum. Indicates that the system of balls must be capable of dispersion-free energy propagation. (Author/JN)

Reviews general developments in computerization and data processing of organic elemental analyses; carbon, hydrogen, and nitrogen analyzers; procedures for determining oxygen, sulfur, and halogens, as well as other nometallic elements and organometallics. Selected papers on trace analysis of nonmetals and determination of metallic elements are…

Described is an experiment used in an undergraduate biochemistry laboratory involving inducing rickets in chicks and correlating the disease to a reduction in vitamin D-dependent calcium binding protein. Techniques involved are hormone induction, protein isolation, and radioisotope methodology. (Author/DS)

Discusses simplified experiments in which sinusoidal signals are detected when a laser beam is sent into a photodiode. (HM)

This research news article on microelectronics discusses the scientific challenge the integrated circuit industry will have in the next decade, for designing the complicated microcircuits made possible by advancing miniaturization technology. (HM)