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April 2000

Volume 53, Issue 4

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Radionuclide Therapy

Bert M. Coursey and Ravinder Nath
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Physicists and physicians are working together to devise new methods for exploiting the power of ionizing radiation to treat cancer and coronary artery disease.
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A Fresh Look at Entropy and the Second Law of Thermodynamics

Elliott H. Lieb and Jakob Yngvason
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The existence of entropy, and its increase, can be understood without reference to either statistical mechanics or heat engines.
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The Composite Fermion: A Quantum Particle and Its Quantum Fluids

Jainendra K. Jain
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The fractional quantum‐Hall effect and other exotic behaviors of electrons trapped in two dimensions can be understood in terms of composite particles—electrons sporting attached flux quanta.
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Physics Update

Stephen G. Benka and Philip F. Schewe
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‘Radiation Risk and Ethics’: Health Hazards, Prevention Costs, and Radiophobia

Frank N. von Hippel, Stephen V. Musolino, Joe Levinger, Amos Norman, Edward B. Lewis, David M. Close, Arjun Makhijani, Harry W. Ellis, and Zbigniew Jaworowski
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Faculty‐Position Ad's Underemphasis on Teaching is MITigated

Marc Kastner
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Explorers Focus More Sharply on Their Prey: Weakly Interacting Dark Matter

Barbara Goss Levi
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Results are starting to come in from detectors honed to hunt for the universe's missing mass. Although not conclusive, the reports are a harbinger of what's to come.
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Ultracold Neutrons are Magnetically Trapped at NIST

Gloria B. Lubkin
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Despite its ubiquity, the neutron still resists precise measurement of its lifetime. More precision would allow tests of Big Bang nucleosynthesis and theories beyond the Standard Model.
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Magnetic Semiconductors Enable Efficient Electrical Spin Injection

Richard Fitzgerald
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Semiconductors doped with manganese may provide the answer to a long‐standing question in magneto‐electronics.
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Stepping Stones: The Making of Our Home World

Stephen A. Drury and Andrew H. Knoll, Reviewer
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The Search for Life on Other Planets

Bruce Jakosky and Andrew H. Knoll, Reviewer
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Planetary Dreams: The Quest to Discover Life beyond Earth

Robert Shapiro and Andrew H. Knoll, Reviewer
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Astronomy in Prehistoric Britain and Ireland

Clive Ruggles and Michael H. Shank, Reviewer
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The Odd Quantum

Sam Treiman and Robert H. March, Reviewer
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Reason Enough to Hope: America and the World of the Twenty‐first Century

Philip Morrison, Kosta Tsipis, and William Happer, Reviewer
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Dorothy Hodgkin: A Life

Georgina Ferry and Eugenie V. Mielczarek, Reviewer
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Adaptive Optics for Astronomical Telescopes

John W. Hardy and Laird Thompson, Reviewer
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Adaptive Optics in Astronomy

François Roddier and Laird Thompson, Reviewer
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New Books

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Focus on Microscopy

Lawrence G. Rubin
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Clinton Bestows 1999 National Medals of Science

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King and Others Honored by AAPT

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NAS to Grant Awards

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AAAS Honors Scientific Leadership

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Robert Rathbun Wilson

Boyce McDaniel and Albert Silverman
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Richard Latter

Harold L. Brode
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Barbara Hope Cooper

Neil Ashcroft, Douglas Fitchen, and Wilson Ho
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Charles Edward Swenberg

Martin Pope, Nicholas Geacintov, L. S. Myers, Jr, and Robert S. Knox
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Jan van Paradijs

Edward van den Heuvel
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Klaus Kinder‐Geiger

Robert D. Pisarski, Joseph I. Kapusta, and Berndt Mueller
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Dorothy N. Davis Locanthi

Saul J. Adelman and Michael M. Dworetsky
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Clinton's ‘Historic’ R&D Budget for Fiscal 2001 Puts Republican Congress in a Quandary

Irwin Goodwin
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Bell Labs Wins Long‐Running Patent Battle over High‐Tc Superconductor

Toni Feder
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UCSC to Get Grades

Toni Feder
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From Quarks to Squawks: Former Physicist Plays Avant‐Garde Sax

Charles Day
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Ban on Nuclear Waste Transport Eased in Germany

Toni Feder
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Cosmology Prize Starts with a Bang

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Strasbourg Interdisciplinary Institute Gets off the Ground

Toni Feder
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In Brief

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Web Watch

Charles Day
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Global Seismic Hazard Map Unveiled

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