Chicago Best Price DirectoryYou are here » Chicago Best Price » Links Directory » Science
Science RSS FeedsThis Week in Science - The Human Honeypot | Reassessing Past Diversity | Transistor Nanofilms | Test of the Double Pulsar | Steps in Organic Film Growth | Water and Ice | Toward the Tree of Life | A Mechanism for Sudden Infant Death Syndrome? | Spreading the Word | Autophagy from Egg to Embryo | Rat Run | Myosins Under Tension | Inhibition, Timing, and Cortical Computation | Cation Close-Up | Generating a Biological Oscillator...Feed Source: www.sciencemag.org Editors' Choice - DEVELOPMENT: Coordinated Growth | CELL BIOLOGY: Like Ps in a Pod | MOLECULAR BIOLOGY: Reengineering Engrailed | MATERIALS SCIENCE: Slippery When Wet | CHEMISTRY: Spinning in Concert | PHYSICS: Quantum Privacy | SCIENCE SIGNALING: Counting Phosphates... Science Scope - Peruse These Ties | Austrian Astronomers Score | Settlement in Anthrax Case | Rights for Apes? ¡Si! | Alliance Aims for Cancer Vaccine... Random Samples - MATHEMATICIANS' FRIEND GETS BLOWN TO BITS | CIVILIZATION'S TOLLS | TO SLEEP, PERCHANCE TO BUILD A NEW IMAGE | REDWOODS OF THE REEF... Newsmakers - AWARDS | DEATHS | MONEY MATTERS | DATA POINT... [REPORTS] Self-Sorted, Aligned Nanotube Networks for Thin-Film Transistors - Treating silicon substrates with a silane layer allows them to absorb spin-coated, semiconducting carbon nanotubes, yielding aligned and densely packed nanotube films.Authors: Melburne C. LeMieux, Mark Roberts, Soumendra Barman, Yong Wan Jin, Jong Min Kim, Zhenan Bao... [REPORTS] Relativistic Spin Precession in the Double Pulsar - Four years of data track the spin precession of a pulsar orbiting a second pulsar, providing a positive test of general relativity in a strong gravitational field.Authors: Rene P. Breton, Victoria M. Kaspi, Michael Kramer, Maura A. McLaughlin, Maxim Lyutikov, Scott M. Ransom, Ingrid H. Stairs, Robert D. Ferdman, Fernando Camilo, Andrea Possenti... [REPORTS] Characterization of Step-Edge Barriers in Organic Thin-Film Growth - In contrast to the growth of inorganic films, bending of a rod-shaped organic molecule at step edges and its anisotropy leads to a change from growth of layers to terraced mounds.Authors: Gregor Hlawacek, Peter Puschnig, Paul Frank, Adolf Winkler, Claudia Ambrosch-Draxl, Christian Teichert... [REPORTS] Large and Rapid Melt-Induced Velocity Changes in the Ablation Zone of the Greenland Ice Sheet - Measurements of ice velocity across western Greenland show that the ice sheet responds within days to excess meltwater, although annual flow has slowed a bit over 17 years.Authors: R. S. W. van de Wal, W. Boot, M. R. van den Broeke, C. J. P. P. Smeets, C. H. Reijmer, J. J. A. Donker, J. Oerlemans... [REPORTS] Mg/Al Ordering in Layered Double Hydroxides Revealed by Multinuclear NMR Spectroscopy - Rapid sample spinning during nuclear magnetic resonance spectroscopy reveals a highly ordered cation distribution in layered materials.Authors: Paul J. Sideris, Ulla Gro Nielsen, Zhehong Gan, Clare P. Grey... [REPORTS] Autophagy Is Essential for Preimplantation Development of Mouse Embryos - As fertilized mouse eggs develop into embryos and maternal proteins are eliminated, the degradative process of autophagy is required for proper growth.Authors: Satoshi Tsukamoto, Akiko Kuma, Mirei Murakami, Chieko Kishi, Akitsugu Yamamoto, Noboru Mizushima... [REPORTS] Phylogenetic Signal in the Eukaryotic Tree of Life - A survey of sequences in GenBank, which represent about 10 percent of described species, shows that the patchy distribution of data is insufficient to build a eukaryotic tree of life.Author: Michael J. Sanderson... [REPORTS] Accelerated Human Population Growth at Protected Area Edges - Contrary to expectations, human populations living near protected areas in 45 countries in Africa and Latin America are increasing nearly twice as fast as other rural ones.Authors: George Wittemyer, Paul Elsen, William T. Bean, A. Coleman, O. Burton, Justin S. Brashares... [REPORTS] Robust, Tunable Biological Oscillations from Interlinked Positive and Negative Feedback Loops - Analysis of known and theoretical oscillatory circuits in cells shows that those with both negative and positive feedback are more robust and allow frequency control independent of amplitude.Authors: Tony Yu-Chen Tsai, Yoon Sup Choi, Wenzhe Ma, Joseph R. Pomerening, Chao Tang, James E. Ferrell Jr.... [REPORTS] Sporadic Autonomic Dysregulation and Death Associated with Excessive Serotonin Autoinhibition - In young mice, expression of higher than normal levels of a type of serotonin receptor causes sporadic death with features reminiscent of sudden infant death syndrome.Authors: Enrica Audero, Elisabetta Coppi, Boris Mlinar, Tiziana Rossetti, Antonio Caprioli, Mumna Al Banchaabouchi, Renato Corradetti, Cornelius Gross... [REPORTS] Myosin I Can Act As a Molecular Force Sensor - Myosin I, a motor protein that plays a role in hearing, is a sensitive tension sensor, reacting to small loads (less than 2 picoNewtons) by binding for much longer times to actin.Authors: Joseph M. Laakso, John H. Lewis, Henry Shuman, E. Michael Ostap... [REPORTS] The Spread of Ras Activity Triggered by Activation of a Single Dendritic Spine - When strengthened, individual synapses on dendritic spines contain an activated small regulatory protein that spreads to nearby spines, possibly altering their sensitivity.Authors: Christopher D. Harvey, Ryohei Yasuda, Haining Zhong, Karel Svoboda... [REPORTS] Finite Scale of Spatial Representation in the Hippocampus - The rat hippocampus provides a representation of the animal's entire spatial environment, coding distances up to 1 meter away in the dorsal region and up to 15 meters at the ventral tip.Authors: Kirsten Brun Kjelstrup, Trygve Solstad, Vegard Heimly Brun, Torkel Hafting, Stefan Leutgeb, Menno P. Witter, Edvard I. Moser, May-Britt Moser... [PODCASTS] Science Podcast - Author: ... [EDITORIAL] Reviewing Peer Review - Authors: Bruce Alberts, Brooks Hanson, Katrina L. Kelner... [NEWS] FLORIDA: Big Land Purchase Triggers Review of Plans to Restore Everglades - An $11 billion plan to restore the Everglades will likely get an overhaul after a major land deal last week by the state of Florida.Author: Erik Stokstad... [NEWS] CLIMATE CHANGE: California Emissions Plan to Explore Use of Offsets - Measuring the costs and benefits of projects intended to offset the emission of greenhouse gases is one of many thorny issues that the state of California must tackle as it begins drafting a cap-and-trade system of carbon credits.Author: Eli Kintisch... [NEWS] PALEONTOLOGY: Life's Innovations Let It Diversify, at Least Up to a Point - On page 97 of this week's issue of Science, paleontologists--including authors of the original paper--overturn a 2001 paper that reported that total diversity of marine invertebrates had scarcely increased in 400 million years.Author: Richard A. Kerr... [NEWS] EVOLUTION: Where Have All Thoreau's Flowers Gone? - By retracing Henry David Thoreau's footsteps during his famous stay at Walden Pond, researchers have detected a disturbing pattern in the fate of scores of plant species as the New England climate has changed since Thoreau's time, one that they described last week at the Evolution 2008 meeting.Author: Elizabeth Pennisi... [NEWS] GENOMICS: Billion-Dollar Cancer Mapping Project Steps Forward - Leaders of an ambitious effort to find all common mutations in human cancers delivered their first results to a U.S. government panel last week along with a plain message: Their $100 million pilot is paying off.Author: Jocelyn Kaiser... [NEWS] MARINE BIOLOGY: Panel to Take Closer Look at Scientific Whaling - Is Japan's research whaling, which claims about 1000 whales a year, scientific investigation or disguised commercial whaling? A new review process endorsed by the International Whaling Commission last week at its 60th annual meeting hopes to get closer to the answer.Author: Dennis Normile... [NEWS] APPLIED PHYSICS: Tiny Transistor Gets a Good Sorting Out - On page 101 of this week's issue of Science, researchers report separating and patterning semiconducting tubes in a single step to form the heart of a transistor that turned off and on much more efficiently than previous transistors made with bunches of nanotubes.Author: Robert F. Service... [NEWS FOCUS] ARCHAEOLOGY: Preserving Iraq's Battered Heritage - Archaeologists have feared for Iraq's unique archaeological treasures since war began 5 years ago. Now, despite continued unrest, a team returning from southern Iraq bears surprisingly good news.Author: Andrew Lawler... [NEWS FOCUS] ARCHAEOLOGY: On Iraq's Front Lines - Abdel-Amir Hamdani, director of antiquities in the Nasiriyeh region of southern Iraq, spent 3 months in jail for opposing plans to build a dozen brick factories on top of an important archaeological site. Hamdani's tribulations reflect the precarious state of Iraq's archaeological heritage 5 years after the war began (see main text).Author: Andrew Lawler... [NEWS FOCUS] EPILEPSY: When Death Strikes Without Warning - After years of neglect, a devastating effect of epilepsy, sudden death, is drawing new scrutiny.Author: Jennifer Couzin... [NEWS FOCUS] PARTICLE PHYSICS: Competing Teams Plot Two Different Paths to a New Particle Smasher - To make a new collider, physicists in Japan plan to push an existing machine to its limits. Others in Italy hope to cobble one together from old parts and a bright idea.Author: Adrian Cho... [LETTERS] Painful Publishing - Authors: Martin Raff, Lexander Johnson, Peter Walter... [LETTERS] The Enemy Within - Author: Victor L. Roggli... [LETTERS] The Limits of Water Pumps - Authors: Lixin Wang, Paolo D'Odorico... [LETTERS] Omissions in GLAST Story - Authors: Giovanni F. Bignami, T. Maccacaro, R. Petronzio, M. Tavani... [LETTERS] Frogs on a Plane - Author: Jane Rigg... [BOOKS ET AL.] YOUTH NONFICTION: Inspiring Experiences in Science - Three books from the Women's Adventures in Science series present the experiences and research of a wildlife biologist, a robot designer, and a biomechanist to encourage young readers' interests.Author: Susan Kovats... [BOOKS ET AL.] HISTORICAL FICTION: Newton's Ghosts - Alchemy, Isaac Newton, and suspicious deaths in 17th- and 20th-century Cambridge are among the ingredients of this historical novel.Author: Jan Golinski... [BOOKS ET AL.] SCIENCE COMMUNITY: First Adventures in Science - In these essays, MIT students (former and current) and mentors describe the crucial roles particular objects played in sparking their choice of science as a vocation.Author: Barbara Jasny... [BOOKS ET AL.] SCIENCE FICTION: Cities Not Built to Last - Despite its shortcomings, Arthur C. Clarke's first novel conveys his "sweeping vistas, grand ideas, and ultimately optimistic view of humankind's future in the cosmos."Author: Guy Riddihough... [POLICY FORUM] SCIENCE AND GOVERNMENT: An Earth Systems Science Agency - Addressing serious environmental and economic challenges in the United States will require organizational changes at the federal level.Authors: Mark Schaefer, D. James Baker, John H. Gibbons, Charles G. Groat, Donald Kennedy, Charles F. Kennel, David Rejeski... [PERSPECTIVES] NEUROSCIENCE: The Scale of Experience - Specific cells in the hippocampus allow the rat brain to track spatial location at different scales.Author: Michael E. Hasselmo... [PERSPECTIVES] SOCIOLOGY: Indirect Social Influence - To what extent are our decision-making and learning processes influenced indirectly by others?Author: Jerker Denrell... [PERSPECTIVES] NEUROSCIENCE: Transient Dynamics for Neural Processing - A computational view of how perception and cognition can be modeled as dynamic patterns of transient activity within neural networks.Authors: Misha Rabinovich, Ramon Huerta, Gilles Laurent... [PERSPECTIVES] MATERIALS SCIENCE: A Unique Platform for Materials Design - By combining ionic liquids with block polymers, a virtually unlimited range of composite materials can be prepared.Author: Timothy P. Lodge... [PERSPECTIVES] OCEANS: Carbon Emissions and Acidification - Avoiding environmental damage from ocean acidification requires reductions in carbon dioxide emissions regardless of climate change.Authors: Richard E. Zeebe, James C. Zachos, Ken Caldeira, Toby Tyrrell... [REVIEWS] Neuronal Diversity and Temporal Dynamics: The Unity of Hippocampal Circuit Operations - Authors: Thomas Klausberger, Peter Somogyi... [SPECIAL SECTION] Mercury, Up-Close Again - Author: Brooks Hanson... [SPECIAL/REPORTS] Return to Mercury: A Global Perspective on MESSENGER?s First Mercury Flyby - Authors: Sean C. Solomon, Ralph L. McNutt Jr., Thomas R. Watters, David J. Lawrence, William C. Feldman, James W. Head, Stamatios M. Krimigis, Scott L. Murchie, Roger J. Phillips, James A. Slavin, Maria T. Zuber... [SPECIAL/REPORTS] Spectroscopic Observations of Mercury?s Surface Reflectance During MESSENGER?s First Mercury Flyby - Authors: William E. McClintock, Noam R. Izenberg, Gregory M. Holsclaw, David T. Blewett, Deborah L. Domingue, James W. Head III, Jörn Helbert, Timothy J. McCoy, Scott L. Murchie, Mark S. Robinson, Sean C. Solomon, Ann L. Sprague, Faith Vilas... [SPECIAL/REPORTS] Reflectance and Color Variations on Mercury: Regolith Processes and Compositional Heterogeneity - Authors: Mark S. Robinson, Scott L. Murchie, David T. Blewett, Deborah L. Domingue, S. Edward Hawkins III, James W. Head, Gregory M. Holsclaw, William E. McClintock, Timothy J. McCoy, Ralph L. McNutt Jr., Louise M. Prockter, Sean C. Solomon, Thomas R. Watters... [SPECIAL/REPORTS] Volcanism on Mercury: Evidence from the First MESSENGER Flyby - Authors: James W. Head, Scott L. Murchie, Louise M. Prockter, Mark S. Robinson, Sean C. Solomon, Robert G. Strom, Clark R. Chapman, Thomas R. Watters, William E. McClintock, David T. Blewett, Jeffrey J. Gillis-Davis... [SPECIAL/REPORTS] Geology of the Caloris Basin, Mercury: A View from MESSENGER - Authors: Scott L. Murchie, Thomas R. Watters, Mark S. Robinson, James W. Head, Robert G. Strom, Clark R. Chapman, Sean C. Solomon, William E. McClintock, Louise M. Prockter, Deborah L. Domingue, David T. Blewett... [SPECIAL/REPORTS] Laser Altimeter Observations from MESSENGER?s?First Mercury Flyby - Authors: Maria T. Zuber, David E. Smith, Sean C. Solomon, Roger J. Phillips, Stanton J. Peale, James W. Head III, Steven A. Hauck II, Ralph L. McNutt Jr., Jürgen Oberst, Gregory A. Neumann, Frank G. Lemoine, Xiaoli Sun, Olivier Barnouin-Jha, John K. Harmon... [SPECIAL/REPORTS] Mercury Cratering Record Viewed from MESSENGER?s First Flyby - Authors: Robert G. Strom, Clark R. Chapman, William J. Merline, Sean C. Solomon, James W. Head III... [SPECIAL/REPORTS] The Structure of Mercury?s Magnetic Field from MESSENGER?s First Flyby - Authors: Brian J. Anderson, Mario H. Acuña, Haje Korth, Michael E. Purucker, Catherine L. Johnson, James A. Slavin, Sean C. Solomon, Ralph L. McNutt Jr.... [SPECIAL/REPORTS] Mercury's Magnetosphere After MESSENGER's First Flyby - Authors: James A. Slavin, Mario H. Acuña, Brian J. Anderson, Daniel N. Baker, Mehdi Benna, George Gloeckler, Robert E. Gold, George C. Ho, Rosemary M. Killen, Haje Korth, Stamatios M. Krimigis, Ralph L. McNutt Jr., Larry R. Nittler, Jim M. Raines, David Schriver, Sean C. Solomon, Richard D. Starr, Pavel Trávní?ek, Thomas H. Zurbuchen... [SPECIAL/REPORTS] MESSENGER Observations of the Composition of Mercury?s Ionized Exosphere and Plasma Environment - Authors: Thomas H. Zurbuchen, Jim M. Raines, George Gloeckler, Stamatios M. Krimigis, James A. Slavin, Patrick L. Koehn, Rosemary M. Killen, Ann L. Sprague, Ralph L. McNutt Jr., Sean C. Solomon... [SPECIAL/REPORTS] Mercury?s Exosphere: Observations During MESSENGER?s First Mercury Flyby - Authors: William E. McClintock, E. Todd Bradley, Ronald J. Vervack Jr., Rosemary M. Killen, Ann L. Sprague, Noam R. Izenberg, Sean C. Solomon... [BREVIA] Reduced Responses to Selection After Species Range Expansion - An annual spurge with a geographical range that expanded after the Ice Age shows decreased response to selection at the edges of its new range, as predicted by theory.Authors: Benoit Pujol, John R. Pannell... [RESEARCH ARTICLES] Phanerozoic Trends in the Global Diversity of Marine Invertebrates - A compilation of more than 3 million specimens of fossil marine invertebrates shows that their diversity increased more in the Jurassic and less since then than an earlier study implied.Authors: John Alroy, Martin Aberhan, David J. Bottjer, Michael Foote, Franz T. Fürsich, Peter J. Harries, Austin J. W. Hendy, Steven M. Holland, Linda C. Ivany, Wolfgang Kiessling, Matthew A. Kosnik, Charles R. Marshall, Alistair J. McGowan, Arnold I. Miller, Thom... Copyright © 2008, Chicago Best Price. All Rights Reserved. |