Describes some of the common principles underlying the operation of the cortex in an effort to understand the human brain. Discusses the structure of the cortex, its specific areas, and its map-making abilities. Describes some of the recent discoveries about brain operation, development and functioning. (TW)

Describes the construction of an inexpensive apparatus for separating proteins by polyacrylamide gel electrolysis in the presence of sodium dodecyl sulphate. (TW)

Suggests a new experiment to study the genetic material of eukaryotes. It is based on the rapid growth and interest of the research on chromatin. (TW)

Discusses the use of the FT-IR spectrometer in analyses that were previously avoided. Examines some of the applications of this spectroscopy with aqueous solutions, circular internal reflection, samples with low transmission, diffuse reflectance, infrared emission, and the infrared microscope. (TW)

Illustrates the 29 steps involved in the development of a model of a coordination polyhedron that represents the hexagonal closest packed structure. Points out it is useful in teaching stereochemistry. (TW)

Listed are ways to demonstrate physical and chemical properties of matter and to show electrolysis using an overhead projector. (RH)

Reviews National Research Council's (NRC) book, "Opportunities in Chemistry: Today and Tomorrow." Describes the difference between this volume and the NRC's earlier version, "Opportunities in Chemistry." Discusses the initial circulation of the new volume. Indicates how to obtain the new volume. (CW)

Describes an experiment to identify lactose and estimate the concentration of lactose in a sample of milk. Gives a background of the investigation. Details the experimental method, results and calculations. Discusses the implications of the experiment to students. Suggests further experiments using the same technique used in…

A 15-week introductory course in nutrition was developed into a computerized study guide or "autotutorial" program. There are 1,950 statements and review questions on main-frame or microcomputers that students use to preview or review lectures, or study for examinations. Describes the program and discusses the highly positive program evaluation…

Describes how a traditional neurophysiology laboratory has been computerized and how students work with digitizing on-line data. Points out advantages of computerization, including the speed, accuracy, and reliability in the acquisition, reduction, and analysis of data. Also describes four generic computer programs tailored to the particular…

Describes a technique to improve the adaptation, development, and utilization of laboratory worksheets. Two sample worksheets (on decomposition of ethanol and on solubility of potassium chloride) are included. (JN)

Explains the computer-based modeling "language" of Structural Thinking and Experiential Learning Laboratory with Animation (STELLA) and its applications to environmental education. Describes STELLA's interactive capabilities through an example of a program on predator-prey interactions. Recommends the use of STELLA for clarification of…

Proposes a science-oriented general education core, stressing the importance of serious scientific study in understanding contemporary human existence. Describes the four courses comprising the core, which use the evolutionary process as the unifying concept for the study of physics, astronomy, geology, chemistry, biology, anthropology,…

Describes a field-based course for science teachers which focuses on Appalachian geology. Provides an overview of the course's objectives, organization, itinerary, and requirements and describes an evaluative study of the program. Also includes a rationale for field instruction. (ML)

Advocates the use of field trips for improving students' image-interpretation abilities. Presents guidelines for developing a field trip for an aerial-photo interpretation class or a remote-sensing class. Reviews methodology employed, content emphasis, and includes an exercise that was used on a trip. (ML)