Describes an undergraduate biochemistry laboratory experiment on enzyme kinetics using the D-amino acid oxidase system and an ammonia electrode. Preparation of an ammonia standard curve, a sample preparation, and inhibition studies are discussed. (YP)

Discusses the orbit, motion, and phases of the moon. Describes three activities on the moon: "How Soon Can You See a Crescent Moon?"; "When is the Moon Visible?"; and "Lunar Eclipses." (YP)

Describes how information gathered from a computer database can be used as a springboard to scientific discovery. Specifies directions for studying the homeobox gene PAX-6 using GenBank, a database maintained by the National Center for Biotechnology Information (NCBI). Contains 16 references. (WRM)

How do we see young children's thinking in science? Is it, as much previous research has led us to believe, that their ideas can be neatly boxed like "brown paper packages tied up with strings"--as the song from "The Sound of Music" goes? Or are their ideas like "wild geese that fly with the moon on their wings" ("Sound of Music"): fluid, complex,…

The objectives and design of a 3-year study of research training and supervision in biology and physics are discussed. Scientific problems arising from work on the thesis will be a focus for the postgraduate students and their supervisors. Attention will be focused on supervisors' and students' conceptions of science, subject range, research,…

Several potential "problem areas" in the science news coverage process were identified through analysis of comments written by 193 scientists who were asked to assess the accuracy of science news stories in which they were cited as the major source. The analysis led to a number of recommendations for improving the objective reporting of…

Reports on some of the discoveries over the last quarter century regarding quasars including spectra and energy sources, formation and evolution, and cosmological probes. Describes some of the fundamental mysteries that remain. (CW)

Describes the use of spectroscopy and the redshift to measure how far an object is by measuring how fast it is receding from earth. Lists the most distant quasars yet found. Tables include "Redshift vs. Distance" and "Distances to Celestial Objects for Various Cosmologies." (CW)

Develops an experiment that could be done in two- to three-hour blocks and does not rely on cold room procedures for most of the purification. Describes the materials, methods, and results of the purification of bovine heart lactate dehydrogenase using ammonium sulfate fractionation, dialysis, and separation using affinity chromatography and…

Describes two curriculum approaches used at a college as an alternative to traditional introductory science-survey courses. The first course is entitled "Nature of Science" and the second is "Current Research." (PR)

Some central issues in discussions of creative processes in science are: (1) the mechanism(s) by which hypothesis formation takes place; (2) the sources of new knowledge during hypothesis formation; and (3) the "Eureka" versus steady accumulation (accretion) issue concerning the pace of change during hypothesis formation. This paper…

This paper argues that if researchers studying a recognized category of behavior, such as fantasy play or aggression, were to focus on prototypical instances of the behavior, there should be high inter-researcher agreement of just the sort that operational definitions were intended to secure. A study of fantasy play was conducted using a paradigm…

Describes the Slanting Leaf Beds Project in Oregon in which fifth and sixth graders participated in hands-on, long-term research projects designed to provide students with an understanding of scientific processes and concepts. Students first worked in pairs obtaining samples and making tentative identifications. Group data was pooled and compared…

The problems and prospects of using science and technology to help solve world problems are briefly reviewed in this paper. Public attitudes toward these two areas have currently been changing due to recent scientific and technological developments that have been threatening or have had obvious deleterious consequences. Despite these criticisms,…

Tells the story of Maarten Schmidt and the discovery of quasars. Discusses the decomposition of light, crucial observations and solving astronomical mysteries. Describes spectroscopic analysis used in astronomy and its application to quasars. (CW)