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Shepherd, Gordon M. – Scientific American, 1978
Nerve circuits are usually analyzed in terms of the axon, the long fiber of the nerve cell. It now appears that there are many circuits involving only the nerve cell's shorter extensions, the dendrites. (Author/BB)
Descriptors: Biochemistry, Biology, Cytology, Microbiology
Gaden, Elmer L., Jr. – Scientific American, 1981
Compares two methods (batch and continuous) in which microorganisms are used to produce industrial chemicals. Describes batch and continuous stirred-tank reactors and offers reasons why the batch method may be preferred. (JN)
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, College Science
Aharonowitz, Yair; Cohen, Gerald – Scientific American, 1981
Outlines advances in the microbial production of pharmaceuticals, including the manufacture of penicillin and other antibiotics, vitamins, hormones, alkaloids, antitumor drugs, and interferons. (CS)
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, Chemical Reactions
Eveleigh, Douglas E. – Scientific American, 1981
Compares traditional and newer methods by which microorganisms are used to produce industrial chemicals. Includes a discussion of economic considerations and new genetic methods in programing microorganisms. Details methods for producing enzymes, aliphatic organic compounds, amino acids, ethanol, n-butanol, and alkene oxides. (CS)
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, Chemical Reactions
Demain, Arnold L.; Solomon, Nadine A. – Scientific American, 1981
Presents an overview of the field of industrial microbiology, providing historical backgrounds of scientific discoveries in the field and descriptions of industrially important microorganisms. Applied research in industry is also detailed, with mention of gene amplification, DNA recombination, pharmaceutical approaches, and detoxification and…
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, College Science
Hopwood, David A. – Scientific American, 1981
Traces the development of the field of industrial microbial genetics, describing a range of techniques for genetic programing. Includes a discussion of site-directed mutagenesis, protoplast fusion, and recombinant DNA manipulations. (CS)
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, College Science
Brill, Winston J. – Scientific American, 1981
Elucidates strategies for applying microbiological techniques to traditional agricultural practices. Discusses the manipulation of microorganisms that live with plants and also the problems involved in the introduction of new genes into crop plants by recombinant DNA methods. (CS)
Descriptors: Agricultural Education, Agricultural Production, Agriculture, Agronomy
Phaff, Herman J. – Scientific American, 1981
Describes industrially important yeasts, molds, bacteria, and actinomycetes. Discussed in detail are microbial products, such as primary metabolites, secondary metabolites, enzymes, and capsular polysaccharides. Traces the historical background of human cell culture, mentioning recombinant DNA research and hybridization of normal mammalian cells…
Descriptors: Biochemistry, Biological Sciences, Chemical Industry, College Science