The neural networks of several invertebrate animals are currently being studied for clues to cerebral function. The major goal of the studies is an understanding of the neural mechanisms behind learning. Organisms used, examples of research studies, and implications are discussed. (Author/JN)

The biological research, of Gottfried Schatz at the University of Basel and Gunter Blobel at Rockefeller University, which explains a mechanism by which mitochondrial proteins are transported across membranes is described. Results indicate that the construction and heredity of mitochondria have surprising differences from other cell processes. (BT)

The hazards posed by new techniques of genetic manipulation have prompted scientists to regulate and in some cases restrict their own basic investigations. Describes some possible applications of the new techniques and outlines the established research guidelines. (GS)

Some newly reported research results indicate that slightly abnormal biological rhythms, both long- and short-term, may be key factors in the development of depression and manic-depression. The results may also hold clues about why certain drugs work or fail to work with different individuals. (Author/BB)

Highlights activities and scientific accomplishments at the Medical Research Council Laboratory of Molecular Biology in Cambridge, England. Includes comments by staff scientists about their current research endeavors. (JN)

Contains a description of the organization of the Primate Research Centers and some of the research being conducted there. (CP)

Relates occurrences at the Asilomar conference that led to the drafting of guidelines for gene-transplant research. The guidelines allow some experiments, defer others until safer containment is available, and ban those considered highly dangerous. (GS)

Discusses the conflicting evidence and points of view presented by scientists involved in research on the nature of memory. The research of one group supports a chemical basis for memory, while the other group presents evidence supporting an electro-physiological basis. (JR)

Summarizes the result of research which considers the effect of women's hormone level on specific skills. Reports that low estrogen levels allow women to excel at spatial skills, but perform poorly at complex motor tasks and speech articulation. Discusses some implications and further research ideas. (YP)

Describes two new microscopes, the acoustic microscope and a scanning transmission microscope, both of which promise to yield fresh insights, based on revolutionary techniques into cellular biology. (BR)

Described are the idea of chaos and the ability to control the chaotic behavior of a real-world physical system. Included is an explanation of the methodology and applications in biology and chemistry. (KR)

Reviews major science news stories of 1988 as reported in the pages of Science News. Covers the areas of anthropology, astronomy, behavior, biology, biomedicine, chemistry, earth sciences, environment, food science, mathematics and computers, paleobiology, physics, science and society, space sciences, and technology. (YP)