Discussed is the need for producing varieties of plants that can withstand the depredations of pests and diseases and are more adapted to stress conditions. Genes for better resistance and adaption are being found in conserved ancient farmers' varieties and related wild species. The importance of conserving these strains is emphasized. (KR)

The Hubble Space Telescope project is described. Discussed are the project directors, construction, launch, deployment, hazards, rationale, and hope of the project. (CW)

Presented is the best understanding of the flaw discovered in the optics of the Hubble Space Telescope and the possible solutions to the problems. The spherical aberration in the telescope's mirror and its effect on the quality of the telescope's imaging ability is discussed. (CW)

Discussed is the importance of engineering students having effective communication skills so they will be able to discuss their work, present their findings, and propose a course of action. Suggestions for organizing and delivering presentations are included. (KR)

Discussed are the possible uses of spreadsheets in the undergraduate curriculum in chemical engineering classes. The advantages and flexibility of spreadsheets, spreadsheet instruction, graphing capabilities, assignment examples, and conclusions are described. (KR)

Discussed is the High Performance Computing Act of 1991 which would provide federal funding for the establishment of a National Research and Education network. The rationale for the proposed legislation is discussed. (CW)

Discussed is the 1992 comprehensive federal budget proposed for the United States. The proposed budgets for the Defense Department, Health and Human Services, National Aeronautics and Space Administration, the National Science Foundation, Department of Agriculture, Environmental Protection Agency, and the National Institute of Standards and…

Research suggests that, although students with disabilities have the determination to succeed in science, the attitudes and inflexibility of science faculty may be a barrier. Teachers can improve this by assessing their attitudes, planning with the student, locating support services, adapting teaching methods, promoting participation, using a…

A hypermedia computer program that uses text, graphics, sound, and animation with associative information linking techniques to teach the functional anatomy of a rat is described. The program includes a nonintimidating tutor, to which the student may turn. (KR)

The development of a computer program, called UC SIGNAL, that permits a student to develop a diagram of a control system configuration using an IBM AT or a PS/2 computer is described. The features of UC SIGNAL and its contribution to process control instruction are discussed. (KR)

An activity in which students obtain a growth curve for algae, identify the exponential and linear growth phases, and calculate the parameters which characterize both phases is described. The procedure, a list of required materials, experimental conditions, analytical technique, and a discussion of the interpretations of individual results are…

Describes an assessment procedure that allows the students to share in the responsibility and judgment of evaluating their own learning and achievement. As applied in an introductory biochemistry course at the University of Sao Paulo, the method consists primarily of a double, independent correction procedures for the students' examinations. (JJK)

Beginning physics students (n=42) were constrained to analyze mechanics problems according to a hierarchical scheme that integrated concepts, principles, and procedures. After five one-hour sessions, students increased their reliance on the use of principles in categorizing problems according to similarity of solution and in writing qualitative…

Changing ideas about the origin of the Silurian Clinton oolitic ironstones in eastern United States provide an instructive example of how interpretations develop as knowledge increases. (PR)

Describes a course, "Great Ideas in Science," for undergraduate nonscience major students. The course emphasizes a few key overarching concepts in physics, chemistry, geology, and biology to introduce students to the essential aspects of science without getting involved in the complex vocabulary or rigorous mathematical derivations. (PR)