Stardust

Look into the Seeds of Time

Joanne Baker
Science 15 December 2006: 1707.
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Perspectives

Whence Comets?

Michael F. A'Hearn
Science 15 December 2006: 1708-1709.
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NASA Returns Rocks from a Comet

Don S. Burnett
Science 15 December 2006: 1709-1710.
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Research Article

Comet 81P/Wild 2 Under a Microscope

Don Brownlee, Peter Tsou, Jérôme Aléon, Conel M. O'D. Alexander, Tohru Araki, Sasa Bajt, Giuseppe A. Baratta, Ron Bastien, Phil Bland, Pierre Bleuet, Janet Borg, John P. Bradley, Adrian Brearley, F. Brenker, Sean Brennan, John C. Bridges, Nigel D. Browning, John R. Brucato, E. Bullock, Mark J. Burchell, Henner Busemann, Anna Butterworth, Marc Chaussidon, Allan Cheuvront, Miaofang Chi, Mark J. Cintala, B. C. Clark, Simon J. Clemett, George Cody, Luigi Colangeli, George Cooper, Patrick Cordier, C. Daghlian, Zurong Dai, Louis D'Hendecourt, Zahia Djouadi, Gerardo Dominguez, Tom Duxbury, Jason P. Dworkin, Denton S. Ebel, Thanasis E. Economou, Sirine Fakra, Sam A. J. Fairey, Stewart Fallon, Gianluca Ferrini, T. Ferroir, Holger Fleckenstein, Christine Floss, George Flynn, Ian A. Franchi, Marc Fries, Z. Gainsforth, J.-P. Gallien, Matt Genge, Mary K. Gilles, Philipe Gillet, Jamie Gilmour, Daniel P. Glavin, Matthieu Gounelle, Monica M. Grady, Giles A. Graham, P. G. Grant, Simon F. Green, Faustine Grossemy, Lawrence Grossman, Jeffrey N. Grossman, Yunbin Guan, Kenji Hagiya, Ralph Harvey, Philipp Heck, Gregory F. Herzog, Peter Hoppe, Friedrich Hörz, Joachim Huth, Ian D. Hutcheon, Konstantin Ignatyev, Hope Ishii, Motoo Ito, Damien Jacob, Chris Jacobsen, Stein Jacobsen, Steven Jones, David Joswiak, Amy Jurewicz, Anton T. Kearsley, Lindsay P. Keller, H. Khodja, A.L. David Kilcoyne, Jochen Kissel, Alexander Krot, Falko Langenhorst, Antonio Lanzirotti, Loan Le, Laurie A. Leshin, J. Leitner, L. Lemelle, Hugues Leroux, Ming-Chang Liu, K. Luening, Ian Lyon, Glen MacPherson, Matthew A. Marcus, Kuljeet Marhas, Bernard Marty, Graciela Matrajt, Kevin McKeegan, Anders Meibom, Vito Mennella, Keiko Messenger, Scott Messenger, Takashi Mikouchi, Smail Mostefaoui, Tomoki Nakamura, T. Nakano, M. Newville, Larry R. Nittler, Ichiro Ohnishi, Kazumasa Ohsumi, Kyoko Okudaira, Dimitri A. Papanastassiou, Russ Palma, Maria E. Palumbo, Robert O. Pepin, David Perkins, Murielle Perronnet, P. Pianetta, William Rao, Frans J. M. Rietmeijer, François Robert, D. Rost, Alessandra Rotundi, Robert Ryan, Scott A. Sandford, Craig S. Schwandt, Thomas H. See, Dennis Schlutter, J. Sheffield-Parker, Alexandre Simionovici, Steven Simon, I. Sitnitsky, Christopher J. Snead, Maegan K. Spencer, Frank J. Stadermann, Andrew Steele, Thomas Stephan, Rhonda Stroud, Jean Susini, S. R. Sutton, Y. Suzuki, Mitra Taheri, Susan Taylor, Nick Teslich, Kazu Tomeoka, Naotaka Tomioka, Alice Toppani, Josep M. Trigo-Rodríguez, David Troadec, Akira Tsuchiyama, Anthony J. Tuzzolino, Tolek Tyliszczak, K. Uesugi, Michael Velbel, Joe Vellenga, E. Vicenzi, L. Vincze, Jack Warren, Iris Weber, Mike Weisberg, Andrew J. Westphal, Sue Wirick, Diane Wooden, Brigitte Wopenka, Penelope Wozniakiewicz, Ian Wright, Hikaru Yabuta, Hajime Yano, Edward D. Young, Richard N. Zare, Thomas Zega, Karen Ziegler, Laurent Zimmerman, Ernst Zinner, and Michael Zolensky
Science 15 December 2006: 1711-1716.
Abstract »|   Full Text »|   PDF »|  

Reports

Impact Features on Stardust: Implications for Comet 81P/Wild 2 Dust

Friedrich Hörz, Ron Bastien, Janet Borg, John P. Bradley, John C. Bridges, Donald E. Brownlee, Mark J. Burchell, Miaofang Chi, Mark J. Cintala, Zu Rong Dai, Zahia Djouadi, Gerardo Dominguez, Thanasis E. Economou, Sam A. J. Fairey, Christine Floss, Ian A. Franchi, Giles A. Graham, Simon F. Green, Philipp Heck, Peter Hoppe, Joachim Huth, Hope Ishii, Anton T. Kearsley, Jochen Kissel, Jan Leitner, Hugues Leroux, Kuljeet Marhas, Keiko Messenger, Craig S. Schwandt, Thomas H. See, Christopher Snead, Frank J. Stadermann, I, Thomas Stephan, Rhonda Stroud, Nick Teslich, Josep M. Trigo-Rodríguez, A. J. Tuzzolino, David Troadec, Peter Tsou, Jack Warren, Andrew Westphal, Penelope Wozniakiewicz, Ian Wright, and Ernst Zinner
Science 15 December 2006: 1716-1719.
Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Organics Captured from Comet 81P/Wild 2 by the Stardust Spacecraft

Scott A. Sandford, Jérôme Aléon, Conel M. O'D. Alexander, Tohru Araki, Sasa Bajt, Giuseppe A. Baratta, Janet Borg, John P. Bradley, Donald E. Brownlee, John R. Brucato, Mark J. Burchell, Henner Busemann, Anna Butterworth, Simon J. Clemett, George Cody, Luigi Colangeli, George Cooper, Louis D'Hendecourt, Zahia Djouadi, Jason P. Dworkin, Gianluca Ferrini, Holger Fleckenstein, George J. Flynn, Ian A. Franchi, Marc Fries, Mary K. Gilles, Daniel P. Glavin, Matthieu Gounelle, Faustine Grossemy, Chris Jacobsen, Lindsay P. Keller, A. L. David Kilcoyne, Jan Leitner, Graciela Matrajt, Anders Meibom, Vito Mennella, Smail Mostefaoui, Larry R. Nittler, Maria E. Palumbo, Dimitri A. Papanastassiou, François Robert, Alessandra Rotundi, Christopher J. Snead, Maegan K. Spencer, Frank J. Stadermann, Andrew Steele, Thomas Stephan, Peter Tsou, Tolek Tyliszczak, Andrew J. Westphal, Sue Wirick, Brigitte Wopenka, Hikaru Yabuta, Richard N. Zare, and Michael E. Zolensky
Science 15 December 2006: 1720-1724.
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Isotopic Compositions of Cometary Matter Returned by Stardust

Kevin D. McKeegan, Jerome Aléon, John Bradley, Donald Brownlee, Henner Busemann, Anna Butterworth, Marc Chaussidon, Stewart Fallon, Christine Floss, Jamie Gilmour, Matthieu Gounelle, Giles Graham, Yunbin Guan, Philipp R. Heck, Peter Hoppe, Ian D. Hutcheon, Joachim Huth, Hope Ishii, Motoo Ito, Stein B. Jacobsen, Anton Kearsley, Laurie A. Leshin, Ming-Chang Liu, Ian Lyon, Kuljeet Marhas, Bernard Marty, Graciela Matrajt, Anders Meibom, Scott Messenger, Smail Mostefaoui, Sujoy Mukhopadhyay, Keiko Nakamura-Messenger, Larry Nittler, Russ Palma, Robert O. Pepin, Dimitri A. Papanastassiou, François Robert, Dennis Schlutter, Christopher J. Snead, Frank J. Stadermann, Rhonda Stroud, Peter Tsou, Andrew Westphal, Edward D. Young, Karen Ziegler, Laurent Zimmermann, and Ernst Zinner
Science 15 December 2006: 1724-1728.
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Infrared Spectroscopy of Comet 81P/Wild 2 Samples Returned by Stardust

Lindsay P. Keller, Sasa Bajt, Giuseppe A. Baratta, Janet Borg, John P. Bradley, Don E. Brownlee, Henner Busemann, John R. Brucato, Mark Burchell, Luigi Colangeli, Louis d'Hendecourt, Zahia Djouadi, Gianluca Ferrini, George Flynn, Ian A. Franchi, Marc Fries, Monica M. Grady, Giles A. Graham, Faustine Grossemy, Anton Kearsley, Graciela Matrajt, Keiko Nakamura-Messenger, Vito Mennella, Larry Nittler, Maria E. Palumbo, Frank J. Stadermann, Peter Tsou, Alessandra Rotundi, Scott A. Sandford, Christopher Snead, Andrew Steele, Diane Wooden, and Mike Zolensky
Science 15 December 2006: 1728-1731.
Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Elemental Compositions of Comet 81P/Wild 2 Samples Collected by Stardust

George J. Flynn, Pierre Bleuet, Janet Borg, John P. Bradley, Frank E. Brenker, Sean Brennan, John Bridges, Don E. Brownlee, Emma S. Bullock, Manfred Burghammer, Benton C. Clark, Zu Rong Dai, Charles P. Daghlian, Zahia Djouadi, Sirine Fakra, Tristan Ferroir, Christine Floss, Ian A. Franchi, Zack Gainsforth, Jean-Paul Gallien, Philippe Gillet, Patrick G. Grant, Giles A. Graham, Simon F. Green, Faustine Grossemy, Philipp R. Heck, Gregory F. Herzog, Peter Hoppe, Friedrich Hörz, Joachim Huth, Konstantin Ignatyev, Hope A. Ishii, Koen Janssens, David Joswiak, Anton T. Kearsley, Hicham Khodja, Antonio Lanzirotti, Jan Leitner, Laurence Lemelle, Hugues Leroux, Katharina Luening, Glenn J. MacPherson, Kuljeet K. Marhas, Matthew A. Marcus, Graciela Matrajt, Tomoki Nakamura, Keiko Nakamura-Messenger, Tsukasa Nakano, Matthew Newville, Dimitri A. Papanastassiou, Piero Pianetta, William Rao, Christian Riekel, Frans J. M. Rietmeijer, Detlef Rost, Craig S. Schwandt, Thomas H. See, Julie Sheffield-Parker, Alexandre Simionovici, Ilona Sitnitsky, Christopher J. Snead, Frank J. Stadermann, Thomas Stephan, Rhonda M. Stroud, Jean Susini, Yoshio Suzuki, Stephen R. Sutton, Susan Taylor, Nick Teslich, D. Troadec, Peter Tsou, Akira Tsuchiyama, Kentaro Uesugi, Bart Vekemans, Edward P. Vicenzi, Laszlo Vincze, Andrew J. Westphal, Penelope Wozniakiewicz, Ernst Zinner, and Michael E. Zolensky
Science 15 December 2006: 1731-1735.
Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Mineralogy and Petrology of Comet 81P/Wild 2 Nucleus Samples

Michael E. Zolensky, Thomas J. Zega, Hajime Yano, Sue Wirick, Andrew J. Westphal, Mike K. Weisberg, Iris Weber, Jack L. Warren, Michael A. Velbel, Akira Tsuchiyama, Peter Tsou, Alice Toppani, Naotaka Tomioka, Kazushige Tomeoka, Nick Teslich, Mitra Taheri, Jean Susini, Rhonda Stroud, Thomas Stephan, Frank J. Stadermann, Christopher J. Snead, Steven B. Simon, Alexandre Simionovici, Thomas H. See, François Robert, Frans J. M. Rietmeijer, William Rao, Murielle C. Perronnet, Dimitri A. Papanastassiou, Kyoko Okudaira, Kazumasa Ohsumi, Ichiro Ohnishi, Keiko Nakamura-Messenger, Tomoki Nakamura, Smail Mostefaoui, Takashi Mikouchi, Anders Meibom, Graciela Matrajt, Matthew A. Marcus, Hugues Leroux, Laurence Lemelle, Loan Le, Antonio Lanzirotti, Falko Langenhorst, Alexander N. Krot, Lindsay P. Keller, Anton T. Kearsley, David Joswiak, Damien Jacob, Hope Ishii, Ralph Harvey, Kenji Hagiya, Lawrence Grossman, Jeffrey N. Grossman, Giles A. Graham, Matthieu Gounelle, Philippe Gillet, Matthew J. Genge, George Flynn, Tristan Ferroir, Stewart Fallon, Denton S. Ebel, Zu Rong Dai, Patrick Cordier, Benton Clark, Miaofang Chi, Anna L. Butterworth, Donald E. Brownlee, John C. Bridges, Sean Brennan, Adrian Brearley, John P. Bradley, Pierre Bleuet, Phil A. Bland, and Ron Bastien
Science 15 December 2006: 1735-1739.
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This Week in Science

Editor summaries of this week's papers.
Science 15 December 2006: 1653.
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Editorial:
Taking the Pulse of the Oceans

Keith Alverson and D. James Baker
Science 15 December 2006: 1657.
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Editors' Choice

Highlights of the recent literature.
Science 15 December 2006: 1659.
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NEW PRODUCTS

Science 15 December 2006: 1796.
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News of the Week

U.S. RESEARCH SPENDING: Scientists Feel the Pain as 2007 Budget Outlook Grows Dark

Jeffrey Mervis
Science 15 December 2006: 1666-1667.
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U.S. RESEARCH SPENDING: Congress Extends Tax Credits for Industry

Science 15 December 2006: 1666.
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U.S. RESEARCH SPENDING: Congress Endorses Bigger NIH Budget, Director's Fund

Jeffrey Mervis
Science 15 December 2006: 1667.
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PLANETARY SCIENCE: A Dry View of Enceladus Puts a Damper on Chances for Life There

Richard A. Kerr
Science 15 December 2006: 1668.
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INTERNATIONAL AFFAIRS: Iranians Fume Over a Closed SESAME

Yudhijit Bhattacharjee
Science 15 December 2006: 1668.
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SCIENTIFIC MISCONDUCT: Online Sleuths Challenge Cell Paper

Hao Xin
Science 15 December 2006: 1669.
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SEISMOLOGY: Do Early Tremors Give Sneak Preview of Quake's Power?

Alexander Hellemans
Science 15 December 2006: 1670.
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ASTRONOMY: France to Launch First Exoplanet Hunter

Alexander Hellemans
Science 15 December 2006: 1671.
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HUMAN EVOLUTION: There's More Than One Way to Have Your Milk and Drink It, Too

Ann Gibbons
Science 15 December 2006: 1672.
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REGULATORY POLICY: EPA Draws Fire Over Air-Review Revisions

Erik Stokstad
Science 15 December 2006: 1672-1673.
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ARMS CONTROL: Little Progress at Bioweapons Talks

Martin Enserink
Science 15 December 2006: 1673.
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ScienceScope

Science 15 December 2006: 1669.
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Random Samples

Science 15 December 2006: 1663.
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Newsmakers

Science 15 December 2006: 1665.
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News Focus

OPTOGENETICS: Shining New Light on Neural Circuits

Greg Miller
Science 15 December 2006: 1674-1676.
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VITALY GINZBURG PROFILE: After a Lifetime in Russian Science, Concern for the Future

Bryon MacWilliams
Science 15 December 2006: 1677-1678.
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NUCLEAR PHYSICS: Japan Gets Head Start in Race to Build Exotic Isotope Accelerators

Dennis Normille and Adrian Cho
Science 15 December 2006: 1678-1679.
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Letters

This Week's Letters

Science 15 December 2006: 1681.
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 Retraction

Nelson Lezcano, Ladislav Mrzljak, Robert Levenson, and Clare Bergson
Science 15 December 2006: 1681.
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 Honey Bees and Humans: Shared Innovation

David W. Lightfoot
Science 15 December 2006: 1681.
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 Climate Change Hearings and Policy Issues

Ryan M. Meyer
Science 15 December 2006: 1681-1682.
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 Cost-Benefit Analysis of the RFA

Norman J. Dovichi and Steven A. Soper
Science 15 December 2006: 1682.
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 Data Mining on the Web

Andrew Smith, Mark Gerstein;, Tim Berners-Lee, Wendy Hall, James Hendler, Nigel Shadbolt, and Daniel J. Weitzner
Science 15 December 2006: 1682.
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 Using Models to Manage Carnivores

Guilaume Chapron and Raphael Arlettaz
Science 15 December 2006: 1682-1683.
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 Corrections and Clarifications

Science 15 December 2006: 1683.
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Books et al.

MILITARY RESEARCH: Dr. DARPA--Or How the Pentagon Learned to Stop Worrying and Love...

Michael Shermer
Science 15 December 2006: 1684.
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EXHIBITS: GENETICS: From a Monk in His Garden

R. Scott Winters
Science 15 December 2006: 1685.
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MILITARY RESEARCH: An Elite Source of Advice

Peter Zimmerman
Science 15 December 2006: 1685-1686.
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Books Received

Science 15 December 2006: 1686.
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Policy Forum

EPIDEMIOLOGY: Ensuring Safe Drinking Water in Bangladesh

M. F. Ahmed, S. Ahuja, M. Alauddin, S. J. Hug, J. R. Lloyd, A. Pfaff, T. Pichler, C. Saltikov, M. Stute, and A. van Geen
Science 15 December 2006: 1687-1688.
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Perspectives

CELL BIOLOGY: Purinergic Chemotaxis

Joel Linden
Science 15 December 2006: 1689-1690.
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ASTRONOMY: Heavy Elements in Stars

Arnold I. Boothroyd
Science 15 December 2006: 1690-1691.
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MICROBIOLOGY: Enhanced: Ramping Up the Heat on Nitrogenase

Douglas G. Capone
Science 15 December 2006: 1691-1692.
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PHYSICS: A New Spin on the Insulating State

Charles L. Kane and Eugene J. Mele
Science 15 December 2006: 1692-1693.
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CHEMISTRY: Generating a Photocurrent on the Nanometer Scale

Frank Wurthner
Science 15 December 2006: 1693-1694.
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NEUROSCIENCE: The Impact of Invisible Stimuli

Petra Stoerig
Science 15 December 2006: 1694-1695.
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Association Affairs

PRESIDENTIAL ADDRESS: Grand Challenges and Great Opportunities in Science, Technology, and Public Policy

Gilbert S. Omenn
Science 15 December 2006: 1696-1704.
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Review

ENSO as an Integrating Concept in Earth Science

Michael J. McPhaden, Stephen E. Zebiak, and Michael H. Glantz
Science 15 December 2006: 1740-1745.
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Brevia

Amphiregulin, a T_H2 Cytokine Enhancing Resistance to Nematodes

Dietmar M. Zaiss, Li Yang, Pranav R. Shah, James J. Kobie, Joseph F. Urban, and Tim R. Mosmann
Science 15 December 2006: 1746.
The immune cells that cause allergies also produce a growth factor that helps to expel parasitic worms by increasing epithelial cell turnover. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Research Article

P[acman]: A BAC Transgenic Platform for Targeted Insertion of Large DNA Fragments in D. melanogaster

Koen J. T. Venken, Yuchun He, Roger A. Hoskins, and Hugo J. Bellen
Science 15 December 2006: 1747-1751.
Published online 30 November 2006 [DOI: 10.1126/science.1134426] (in Science Express Research Articles)
A method allows efficient site-specific integration of large DNA sequences and thus manipulation of proteins in vivo in Drosophila and potentially other organisms. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Reports

Rubidium-Rich Asymptotic Giant Branch Stars

D. A. García-Hernández, P. García-Lario, B. Plez, F. D'Antona, A. Manchado, and J. M. Trigo-Rodríguez
Science 15 December 2006: 1751-1754.
Published online 9 November 2006 [DOI: 10.1126/science.1133706] (in Science Express Reports)
Rubidium-87 is enriched in certain older stars, confirming theories that slow neutron capture generates abundant heavy elements in old, massive stars. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Heterogeneous Three-Dimensional Electronics by Use of Printed Semiconductor Nanomaterials

Jong-Hyun Ahn, Hoon-Sik Kim, Keon Jae Lee, Seokwoo Jeon, Seong Jun Kang, Yugang Sun, Ralph G. Nuzzo, and John A. Rogers
Science 15 December 2006: 1754-1757.
A transfer printing process using soft stamps can efficiently combine different types of nanomaterials formed on separate substrates into an integrated electronic system. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells

B. Andrei Bernevig, Taylor L. Hughes, and Shou-Cheng Zhang
Science 15 December 2006: 1757-1761.
Varying the thickness of a quantum well in a common semiconductor system should produce a transition to a quantum spin Hall effect, a new state of matter. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Photoconductive Coaxial Nanotubes of Molecularly Connected Electron Donor and Acceptor Layers

Yohei Yamamoto, Takanori Fukushima, Yuki Suna, Noriyuki Ishii, Akinori Saeki, Shu Seki, Seiichi Tagawa, Masateru Taniguchi, Tomoji Kawai, and Takuzo Aida
Science 15 December 2006: 1761-1764.
An organic molecule self-assembles into a nanotube in which a layer acting as an electron donor is separated from one acting as an electron acceptor, creating a photoconductor. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

A Clathrate Reservoir Hypothesis for Enceladus' South Polar Plume

Susan W. Kieffer, Xinli Lu, Craig M. Bethke, John R. Spencer, Stephen Marshak, and Alexandra Navrotsky
Science 15 December 2006: 1764-1766.
Convecting gas and dissociation of ice clathrate in Saturn's moon Enceladus can explain the water vapor plume emanating from the south pole, which contains methane and other gases. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

The mtDNA Legacy of the Levantine Early Upper Palaeolithic in Africa

Anna Olivieri, Alessandro Achilli, Maria Pala, Vincenza Battaglia, Simona Fornarino, Nadia Al-Zahery, Rosaria Scozzari, Fulvio Cruciani, Doron M. Behar, Jean-Michel Dugoujon, Clotilde Coudray, A. Silvana Santachiara-Benerecetti, Ornella Semino, Hans-Jürgen Bandelt, and Antonio Torroni
Science 15 December 2006: 1767-1770.
Back-migrations of ancient Asian populations through the Levant contributed to the peopling of northern and eastern Africa. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Nannoplankton Extinction and Origination Across the Paleocene-Eocene Thermal Maximum

Samantha J. Gibbs, Paul R. Bown, Jocelyn A. Sessa, Timothy J. Bralower, and Paul A. Wilson
Science 15 December 2006: 1770-1773.
Rare plankton became extinct when atmospheric CO₂ levels rose abruptly 50 million years ago, whereas those sensitive to ocean acidification caused by the rise survived. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Biomass, Size, and Trophic Status of Top Predators in the Pacific Ocean

John Sibert, John Hampton, Pierre Kleiber, and Mark Maunder
Science 15 December 2006: 1773-1776.
Synthesis of 54 years of fisheries data shows that stocks of Pacific tuna have declined by 9 to 64%, less than some estimates. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

A Secreted Serine-Threonine Kinase Determines Virulence in the Eukaryotic Pathogen Toxoplasma gondii

S. Taylor, A. Barragan, C. Su, B. Fux, S. J. Fentress, K. Tang, W. L. Beatty, H. El Hajj, M. Jerome, M. S. Behnke, M. White, J. C. Wootton, and L. D. Sibley
Science 15 December 2006: 1776-1780.
Genetic mapping identifies the proteins that cause toxoplasmosis when injected by the parasite, one of which is a kinase that interferes with the host signaling pathways. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Polymorphic Secreted Kinases Are Key Virulence Factors in Toxoplasmosis

J. P. J. Saeij, J. P. Boyle, S. Coller, S. Taylor, L. D. Sibley, E. T. Brooke-Powell, J. W. Ajioka, and J. C. Boothroyd
Science 15 December 2006: 1780-1783.
Genetic mapping identifies the proteins that cause toxoplasmosis when injected by the parasite, one of which is a kinase that interferes with the host signaling pathways. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Nitrogen Fixation at 92°C by a Hydrothermal Vent Archaeon

Mausmi P. Mehta and John A. Baross
Science 15 December 2006: 1783-1786.
An ancient microorganism from a deep-sea vent can fix nitrogen at an unusually high temperature. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Greater Disruption Due to Failure of Inhibitory Control on an Ambiguous Distractor

Yoshiaki Tsushima, Yuka Sasaki, and Takeo Watanabe
Science 15 December 2006: 1786-1788.
Unexpectedly, observers trying to perform a visual task are bothered more by subthreshold, irrelevant stimuli than by stimuli they are aware of. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Maternal Oxytocin Triggers a Transient Inhibitory Switch in GABA Signaling in the Fetal Brain During Delivery

Roman Tyzio, Rosa Cossart, Ilgam Khalilov, Marat Minlebaev, Christian A. Hübner, Alfonso Represa, Yehezkel Ben-Ari, and Rustem Khazipov
Science 15 December 2006: 1788-1792.
A burst of maternal oxytocin activates an inhibitory system during labor, thus protecting the neonatal rat brain from injury resulting from oxygen deprivation. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

ATP Release Guides Neutrophil Chemotaxis via P2Y2 and A3 Receptors

Yu Chen, Ross Corriden, Yoshiaki Inoue, Linda Yip, Naoyuki Hashiguchi, Annelies Zinkernagel, Victor Nizet, Paul A. Insel, and Wolfgang G. Junger
Science 15 December 2006: 1792-1795.
Human leukocytes amplify a chemoattractant gradient by making their own gradient of other signaling molecules. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Technical Comments

Comment on "Early Domesticated Fig in the Jordan Valley"

Simcha Lev-Yadun, Gidi Ne'eman, Shahal Abbo, and Moshe A. Flaishman
Science 15 December 2006: 1683.
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Response to Comment on "Early Domesticated Fig in the Jordan Valley"

Mordechai E. Kislev, Anat Hartmann, and Ofer Bar-Yosef
Science 15 December 2006: 1683.
Abstract »|   Full Text »|   PDF »|