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Rothman, James E. – Scientific American, 1985
Relations between structure and function of the Golgi apparatus are emerging from recent laboratory work on this cellular organelle which modifies proteins, sorts them, and packages them for delivery. The structure's three specialized compartments are explained through discussions of the glycosylation pathway, density-gradient experiments,…
Descriptors: Biochemistry, College Science, Cytology, Higher Education
Veltman, Martinus J. G. – Scientific American, 1986
Reports recent findings related to the particle Higgs boson and examines its possible contribution to the standard mode of elementary processes. Critically explores the strengths and uncertainties of the Higgs boson and proposed Higgs field. (ML)
Descriptors: Atomic Structure, Force, Models, Physics
Schwartz, James H. – Scientific American, 1980
Historically described are research studies which led to the current explanation of the two kinds of intracellular transport-axoplasmic flow and axoral transport. Models explaining their fundamental mechanism and the kinds of materials they convey are presented. (BT)
Descriptors: Biochemistry, Biological Sciences, Cytology, Models
Crutchfield, James P.; And Others – Scientific American, 1986
Discusses how the discovery of chaos has created a new paradigm in scientific modeling and how findings are contributing to changes in thought about many different branches of science. Includes explanations and examples of how chaotic behavior can be understood. (ML)
Descriptors: Chaos Theory, Models, Motion, Physics
Vellutino, Frank R. – Scientific American, 1987
Examines previous hypotheses of the causes of dyslexia. Proposes that dyslexia results from a subtle language deficiency rather than from defects in the visual system. Discusses current theories and assesses instructional strategies for dyslexics. (ML)
Descriptors: Dyslexia, Instructional Improvement, Language Processing, Learning Disabilities
Ingersoll, Andrew P. – Scientific American, 1983
The composition and dynamics of the earth's atmosphere are discussed, considering the atmosphere's role in distributing the energy of solar radiation received by the earth. Models of this activity which help to explain climates of the past and predict those of the future are also considered. (JN)
Descriptors: College Science, Earth Science, Geology, Higher Education
Cline, David B. – Scientific American, 1988
Describes the nature of elementary particles, quarks, leptons, and bosons. Indicates the possibility of a fourth family of quarks. Predicts the nature of the lepton relatives. (YP)
Descriptors: Atomic Structure, Atomic Theory, College Science, Computer Simulation
