This Week in Science

Editor summaries of this week's papers.
Science 26 March 1999: 1977.
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Editorial:
A Potential Phosphate Crisis

Philip H. Abelson
Science 26 March 1999: 2015.
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NetWatch

Best of the Web in science.
Science 26 March 1999: 1975.
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 Quarterly Author Index

Science 26 March 1999: 1-15.

 AAAS News & Notes

Science 26 March 1999: 2101.

 NEW PRODUCTS

Science 26 March 1999: 2109.

News of the Week

SCIENTIFIC COMMUNITY:
DOE Lab Exchanges Targeted in Wake of Espionage Claims

David Malakoff
Science 26 March 1999: 1986-1987.
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PLANT SCIENCE:
Data in Key Papers Cannot Be Reproduced

Michael Balter
Science 26 March 1999: 1987-1989.
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PALEONTOLOGY:
Fossil Offers a Glimpse Into Mammals' Past

Carl Zimmer
Science 26 March 1999: 1989-1990.
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SCIENCE AND THE MEDIA:
Chinese Center Sues Over Study Coverage

Dan Zhang and Lei Xiong
Science 26 March 1999: 1990-1992.
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SCIENCE CAREERS:
MIT Issues Mea Culpa on Sex Bias

Constance Holden
Science 26 March 1999: 1992.
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IMMUNIZATION:
UN to End Children's Vaccine Initiative

Helen Gavaghan
Science 26 March 1999: 1992-1993.
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ASTROPHYSICS:
Gamma Beams From a Collapsing Star

Robert Irion
Science 26 March 1999: 1993.
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EDUCATION RESEARCH:
Agencies Launch Effort to Improve U.S. Schools

Jeffrey Mervis
Science 26 March 1999: 1995.
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ScienceScope

Science 26 March 1999: 1989.
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Random Samples

Science 26 March 1999: 2007.
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News Focus

ECOLOGY:
Call for 'Sustainability' in Forests Sparks a Fire

Charles C. Mann and Mark L. Plummer
Science 26 March 1999: 1996-1998.
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SCIENTIFIC PUBLICATIONS:
The March of Paradigms

Jon Cohen
Science 26 March 1999: 1998-1999.
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PEER REVIEW:
NIH Invites Activists Into the Inner Sanctum

Bruce Agnew
Science 26 March 1999: 1999-2001.
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SCIENTIFIC COMMUNITY:
EU Facilities Program Keeps Researchers on the Move

Sabine Steghaus-Kovac
Science 26 March 1999: 2001-2003.
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ASTRONOMY:
Watching the Universe's Second Biggest Bang

Govert Schilling
Science 26 March 1999: 2003-2004.
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HUMAN EVOLUTION:
Did Cooked Tubers Spur the Evolution of Big Brains?

Elizabeth Pennisi
Science 26 March 1999: 2004-2005.
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Letters

This Week's Letters

Science 26 March 1999: 2017.
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 Origin of the Amerindians

Sergio D. J. Pena and N. O. Bianchi
Science 26 March 1999: 2017.
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 Playing Doctor?

Richard W. Murray
Science 26 March 1999: 2017.
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 Interdisciplinary Research at NIH

James J. Anderson;, Valerie A. Luzadis, Barry D. Solomon, Paul Baer, and Richard B. Norgaard
Science 26 March 1999: 2017.
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 Cave Painting Hazard?

Michael Guarnieri
Science 26 March 1999: 2017.
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 Aging and the Genome

Leonard Hayflick
Science 26 March 1999: 2017.
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 Peptide Bond Formation: Retraction

Itaru Nitta, Yoshie Kamada, Hiroe Noda, Takuya Ueda, and Kimitsuna Watanabe
Science 26 March 1999: 2017.
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 CORRECTIONS AND CLARIFICATIONS

Science 26 March 1999: 2017.
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Books et al.

HISTORY OF SCIENCE:
Statistics in the Social World

Stephen E. Fienberg
Science 26 March 1999: 2025.
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ORIGINS OF LIFE:
Old Views of Ancient Events

Steven A. Benner
Science 26 March 1999: 2026.
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 BROWSINGS

Science 26 March 1999: 2026.
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Policy Forum

GENE TECHNOLOGY:
Genetic Enhancement in Humans

Jon W. Gordon
Science 26 March 1999: 2023-2024.
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Perspectives

GENOMICS:
Mix and Match in the Tree of Life

James A. Lake, Ravi Jain, and Maria C. Rivera
Science 26 March 1999: 2027-2028.
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SIGNAL TRANSDUCTION:
Crosstalk Between Rac and Rho

Keith Burridge
Science 26 March 1999: 2028-2029.
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MODERN HUMAN ORIGINS:
Highly Visible, Curiously Intangible

G. A. Clark
Science 26 March 1999: 2029-2032.
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EARTHQUAKE GROUND MOTION:
Enhanced: How Does the Ground Shake?

Arthur D. Frankel
Science 26 March 1999: 2032-2033.
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Review

Phase Separation Scenario for Manganese Oxides and Related Materials

Adriana Moreo, Seiji Yunoki, and Elbio Dagotto
Science 26 March 1999: 2034-2040.
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Research Articles

Replication of Apparent Nonlinear Seismic Response with Linear Wave Propagation Models

Daniel R. H. O'Connell
Science 26 March 1999: 2045-2050.
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Unconditional Security of Quantum Key Distribution over Arbitrarily Long Distances

Hoi-Kwong Lo and H. F. Chau
Science 26 March 1999: 2050-2056.
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Reports

The Effect of Spin Splitting on the Metallic Behavior of a Two-Dimensional System

S. J. Papadakis, E. P. De Poortere, H. C. Manoharan, M. Shayegan, and R. Winkler
Science 26 March 1999: 2056-2058.
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Chain Walking: A New Strategy to Control Polymer Topology

Zhibin Guan, P. M. Cotts, E. F. McCord, and S. J. McLain
Science 26 March 1999: 2059-2062.
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Hydrogen Peroxide on the Surface of Europa

R. W. Carlson, M. S. Anderson, R. E. Johnson, W. D. Smythe, A. R. Hendrix, C. A. Barth, L. A. Soderblom, G. B. Hansen, T. B. McCord, J. B. Dalton, R. N. Clark, J. H. Shirley, A. C. Ocampo, and D. L. Matson
Science 26 March 1999: 2062-2064.
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Arctic Ozone Loss Due to Denitrification

A. E. Waibel, Th. Peter, K. S. Carslaw, H. Oelhaf, G. Wetzel, P. J. Crutzen, U. Pöschl, A. Tsias, E. Reimer, and H. Fischer
Science 26 March 1999: 2064-2069.
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Decay of the GRB 990123 Optical Afterglow: Implications for the Fireball Model

Alberto J. Castro-Tirado, María Rosa Zapatero-Osorio, Nicola Caon, Luz Marina Cairós, Jens Hjorth, Holger Pedersen, Michael I. Andersen, Javier Gorosabel, Corrado Bartolini, Adriano Guarnieri, Adalberto Piccioni, Filippo Frontera, Nicola Masetti, Eliana Palazzi, Elena Pian, Jochen Greiner, Renè Hudec, Ram Sagar, Anil K. Pandey, Vinay Mohan, Ramakant K. S. Yadav, Nilakshi, Gunnlaugur Björnsson, Páll Jakobsson, Ingunn Burud, Frederic Courbin, Gaetano Valentini, Anna Piersimoni, Jesús Aceituno, Luz María Montoya, Santos Pedraz, Roland Gredel, Charles F. Claver, Travis A. Rector, James E. Rhoads, Fabian Walter, Jürgen Ott, Hans Hippelein, Victor Sánchez-Béjar, Carlos Gutiérrez, Alejandro Oscoz, Jin Zhu, Jiansheng Chen, Haotong Zhang, Jianyan Wei, Aiying Zhou, Sergei Guziy, Aleksei Shlyapnikov, John Heise, Enrico Costa, Marco Feroci, and Luigi Piro
Science 26 March 1999: 2069-2073.
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Polarimetric Constraints on the Optical Afterglow Emission from GRB 990123 

Jens Hjorth, Gunnlaugur Björnsson, Michael I. Andersen, Nicola Caon, Luz Marina Cairós, Alberto J. Castro-Tirado, María Rosa Zapatero Osorio, Holger Pedersen, and Enrico Costa
Science 26 March 1999: 2073-2075.
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Spectroscopic Limits on the Distance and Energy Release of GRB 990123 

Michael I. Andersen, Alberto J. Castro-Tirado, Jens Hjorth, Palle Møller, Holger Pedersen, Nicola Caon, Luz Marina Cairós, Heidi Korhonen, María Rosa Zapatero Osorio, Enrique Pérez, and Filippo Frontera
Science 26 March 1999: 2075-2077.
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A Simple Predictive Model for the Structure of the Oceanic Pycnocline

Anand Gnanadesikan
Science 26 March 1999: 2077-2079.
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Requirement of Type III TGF- Receptor for Endocardial Cell Transformation in the Heart

Christopher B. Brown, Angelique S. Boyer, Raymond B. Runyan, and Joey V. Barnett
Science 26 March 1999: 2080-2082.
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Inhibition of Myosin Light Chain Kinase by p21-Activated Kinase

Luraynne C. Sanders, Fumio Matsumura, Gary M. Bokoch, and Primal de Lanerolle
Science 26 March 1999: 2083-2085.
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Imaging Protein Kinase C Activation in Cells

Tony Ng, Anthony Squire, Gurdip Hansra, Frederic Bornancin, Corinne Prevostel, Andrew Hanby, William Harris, Diana Barnes, Sandra Schmidt, Harry Mellor, Philippe I. H. Bastiaens, and Peter J. Parker
Science 26 March 1999: 2085-2089.
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Regulation of -Catenin Signaling by the B56 Subunit of Protein Phosphatase 2A

Joni M. Seeling, Jeffrey R. Miller, Rosario Gil, Randall T. Moon, Ray White, and David M. Virshup
Science 26 March 1999: 2089-2091.
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Role of the S. typhimurium Actin-Binding Protein SipA in Bacterial Internalization

Daoguo Zhou, Mark S. Mooseker, and Jorge E. Galán
Science 26 March 1999: 2092-2095.
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Regulation of Keystone Predation by Small Changes in Ocean Temperature

Eric Sanford
Science 26 March 1999: 2095-2097.
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A Cytotoxic Ribonuclease Targeting Specific Transfer RNA Anticodons

T. Ogawa, K. Tomita, T. Ueda, K. Watanabe, T. Uozumi, and H. Masaki
Science 26 March 1999: 2097-2100.
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Technical Comments

 Species Abundances Across Spatial Scales

James Clive Finlayson
Science 26 March 1999: 1979.
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