TY - BOOK AU - Greenwood,Addison AU - Bartusiak,Marcia AU - Burke,Barbara A. AU - Edelson,Edward ED - National Academy of Sciences (U.S.) TI - Science at the frontier SN - 0585168423 AV - Q180.55.D57 S34eb U1 - 507.20973 20 PY - 1992///- CY - Washington, D.C. PB - National Academy Press KW - Discoveries in science KW - Science KW - Découvertes scientifiques KW - Sciences KW - sciences (philosophy) KW - aat KW - science (modern discipline) KW - SCIENCE KW - Essays KW - bisacsh KW - Nanoscience KW - Reference KW - fast KW - Natuurwetenschappen KW - gtt KW - Electronic books KW - Overzichten (vorm) N1 - Includes bibliographical references and index; Science at the Frontier -- Copyright -- Foreword -- Contents -- 1 Geology -- THE GREAT HEAT ENGINE: MODELING EARTH'S DYNAMICS -- How the Earth Works -- A New Model of the Earth -- How the Model Came to Be -- New Methods and Tools for Working Geologists -- Sharpening the Focus on the Earth's Dynamics -- Hot Spots, French Polynesia, and the Superswell -- Is Volcanism an Essential Part of the Cycle? -- Dynamics in the Core and the Magnetic Field -- Evidence in the Fossil Record -- Geology of the Other Planets -- Bibliography -- Recommended Reading; 2 Photosynthesis ARTIFICIAL PHOTOSYNTHESIS: CHEMICAL AND BIOLOGICAL SYSTEMS FOR CONVERTING LIGHT TO ELECTRICITY AND FUELS -- Photosynthesis In Nature -- Photons and the Physics of Light Energy -- Harvesting Photons and Putting Them to Use -- The Reaction Center -- Laboratory Photosynthesis: Important First Steps -- Excited-state Electron Transfer in Synthetic Systems -- Lessons for and from the Construction of Photodiodes -- Photovoltaic Cells -- Construction of Typical Solar Cells -- Use of Liquid Semiconductor Junctions -- Bibliography -- Recommended Reading; 3 Dynamical Systems WHEN THE SIMPLE IS COMPLEX: NEW MATHEMATICAL APPROACHES TO LEARNING ABOUT THE UNIVERSE -- The Mathematics of Dynamical Systems -- Historical Insightsâ€?Implications of Complexity -- Sensitivity to Initial Conditions -- Chaos, Determinism, and Information -- Instabilities and Real-world Systems -- Implications for Biology? -- The Role of Computers and Computer Graphics -- Bibliography -- 4 Astrophysics -- LOOKING FARTHER IN SPACE AND TIME -- Gravity's Shadow: the Hunt for Omega -- The Texture of the Universe; The Big Bang Picture of the UniverseBasic Measurements in Space -- Redshift Provides the Third Dimension -- Quasar Studies Provide a Model -- Dark Matter Seen Through the Lens of Gravity -- Discovering the Blue Curtain -- Gravity's Role as a Lens and a Cosmological Force -- The Formation of Stars -- Bibliography -- Recommended Reading -- 5 Gene Regulation -- GENE CONTROL: TRANSCRIPTION FACTORS AND MECHANISMS -- How DNA Works -- The Role of DNA -- Noncoding DNAâ€?Subtlety, Punctuation, or Just Plain Junk? -- The Central Dogma of Biology; Transcription FactorsDrawing Lessons from Simpler Organisms -- Exploring the Details of Binding Protein to DNA -- Using the Power of Genetics to Study Transcription -- Activationâ€?Another Role of Transcription Factors -- The Transcription Factor in Development -- Is Cancer Gene-Encoded Growth Gone Awry? -- Life Itself -- Bibliography -- Recommended Reading -- 6 Magnetic Resonance Imaging -- NEW BREAKTHROUGHS IN MEDICAL DIAGNOSIS -- The Physics and Computation Behind MRI -- How MRI Generates Information -- T1 and T2 Relaxation Times as Data N2 - Annotation; At Frontiers of Science symposia, leading young scientists present and discuss their work with their peers in other fields, at a level intelligible across fields (e.g. a molecular biologist makes a presentation understandable to a geologist and vice versa). This book was a collaborative effort on the part of science writer Greenwood and 1990 symposium presenters to share the "frontiers" with a wider audience--scientists in various fields and serious lay readers; future volumes are planned for the 1991 and 1992 symposia. The following topics are addressed in separate chapters: geology, photosynthesis, dynamical systems, astrophysics, gene regulation, magnetic resonance imaging, computation, atmospheric science, neural networks, and physics. Each chapter contains a bibliography and a recommended reading list. Annotation c. by Book News, Inc., Portland, Or UR - https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=14449 ER -