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Science RSS FeedsThis Week in Science - Talking Fish | Sleepless in Drosophila | Afterglow | Striving for Perfection | Not Cracking Under the Strain | Details from Damage | The Invisible Past | Phosphorylation Inside-Out | Doubled-Up Decision | Absence of Cooling | Simultaneous Brain Imaging and Microstimulation | Orbitofrontal Obsessions | X-ray Vision | Bigger Is Better | Golgi-Localization Signals | Nailing a Riboswitch...Feed Source: www.sciencemag.org Editors' Choice - CHEMISTRY: Peering down the Drain | MOLECULAR BIOLOGY: Trapped in an Eddy Upstream | NEUROSCIENCE: Fine-Tuning of Spike Timing | GENETICS: Adaptive Differentiation in Barley | MATERIALS SCIENCE: A Microfluidic Construction Kit | CHEMISTRY: Gilding the Superatom Model | BIOCHEMISTRY: Mobile Intron Meets Magic Spot... Science Scope - Occupational Safety Proves an Unsafe Occupation | Tough New Conflicts Rules | New Money for New Neuroscience | Ready. Set. Fuse! | No SLAC From Stanford... Random Samples - END OF A TIGER'S TALE | CRETAN BONES | HORNY YOUNG DEVILS | SOCCER SOLITON... Newsmakers - THREE Q'S | MONEY MATTERS | DEATHS | IN BRIEF | MOVERS... [EDITORIAL] Engaging Russian Scientists - Author: Glenn Schweitzer... [NEWS] CLIMATE CHANGE: Bush Takes a Final Swipe, and Salute, at CO2 Emission Curbs - Last week, the Bush Administration essentially ended its tumultuous relationship with climate change, unveiling two decisions that all but ensure that President George W. Bush will leave office without making a binding commitment to cut greenhouse gas emissions.Author: David Malakoff... [NEWS] RESEARCH ETHICS: Old Samples Trip Up Tokyo Team - A University of Tokyo team has retracted a published research paper because it apparently failed to obtain informed consent from tissue donors or approval from an institutional review board.Author: Dennis Normile... [NEWS] DEFENSE RESEARCH: New Policy Tries to Ease Security Restrictions - The Department of Defense has issued a new policy directive that's meant to resolve a 7-year dispute between the Pentagon and academic institutions over the rules governing unclassified research.Author: Yudhijit Bhattacharjee... [NEWS] MEDICINE: Stalled Trial for Autism Highlights Dilemma of Alternative Treatments - A long-simmering controversy over an unproven treatment for autism illustrates the difficulty of deciding whether to test questionable therapies, especially in children.Author: Erik Stokstad... [NEWS] PALEOCEANOGRAPHY: Caribbean Megaeruptions Drove a Global Ocean Crisis - New geochemical evidence recovered from ancient muck strongly links a global ocean crisis called Oceanic Anoxic Event 2 to one of the world's largest episodes of volcanism.Author: Richard A. Kerr... [NEWS] NUCLEAR PHYSICS: Two U.S. Labs Vie for Long-Delayed Exotic Nuclei Source - Can a small group of university researchers triumph over a big national laboratory in a competition to build and operate a $550 million piece of scientific machinery? The competition pits physicists at Michigan State University against the Department of Energy's Argonne National Laboratory.Author: Adrian Cho... [NEWS] SOCIOLOGY: Survey Finds Citations Growing Narrower as Journals Move Online - A sociologist argues on page 395 of this week's issue of Science that making scholarly articles available online has narrowed citations to more recent and less diverse articles than before--the opposite of what most people expected.Author: Jennifer Couzin... [NEWS FOCUS] AGRICULTURAL RESEARCH: Reinventing Rice to Feed the World - With prices of rice and other cereals soaring and granaries emptying, it might take a second green revolution to avert widespread famine.Author: Dennis Normile... [NEWS FOCUS] AGRICULTURAL RESEARCH: Sowing the Seeds of Expertise - An innovative training program at the International Rice Research Institute aims to hone the skills of established rice researchers and entice young scientists into the field.Author: Dennis Normile... [NEWS FOCUS] GENETICS: Simple Sleepers - Classic genetic model organisms--fruit flies, zebrafish, and roundworms--are popular newcomers in sleep research laboratories, although debate continues about how much their dozing relates to human slumber.Author: Elsa Youngsteadt... [NEWS FOCUS] ACOUSTICS '08: Sound Science Maps Venetian Canals and Peruvian Ruins - A new generation of archaeologists is harnessing sound waves to reveal the invisible and studying sound as an artifact itself, according to research presented at the Acoustics '08 meeting.Author: ... [NEWS FOCUS] ACOUSTICS '08: Ultrasound Uses in Medicine Heat Up - New ultrasound-based technologies, described at the Acoustics '08 meeting, are poised to probe the inner structure of bones and treat otherwise incurable cancers.Author: John Bohannon... [NEWS FOCUS] ACOUSTICS '08: Snapshots From the Meeting - Snapshots from the Acoustics '08 meeting include studies of how speech betrays fatigue and how polar bears and tigers hear.Author: John Bohannon... [NEWS FOCUS] ACOUSTICS '08: Listening to Distant Ice Crack - At the Acoustics '08 meeting, scientists described using acoustic instruments designed to detect nuclear explosions to listen to the crumbling of the Antarctic ice shelf.Author: John Bohannon... [LETTERS] The Cost of Conservation - Authors: Michael Bode, James Watson, Takuya Iwamura, Hugh P. Possingham... [LETTERS] Conservation with Caveats - Authors: Bernard W. T. Coetzee;, Claire Kremen, Alison Cameron, Andriamandimbisoa Razafimpahanana, Atte Moilanen, Chris D. Thomas, Henk Beentje, John Dransfield, Brian L. Fisher, Frank Glaw, Tatjana C. Good, Grady J. Harper, Robert J. Hijmans, David C. Lees, Edward Louis Jr., Ronald A. Nussbaum, Steven J. Phillips, Christopher J. Raxworthy, George E. Schatz, Miguel Vences, David R. Vieites, Patricia C. Wright, Michelle L. Zjhra... [TECHNICAL COMMENT] Comment on ?A 3-Hydroxypropionate/4-Hydroxybutyrate Autotrophic Carbon Dioxide Assimilation Pathway in Archaea? - Authors: Thijs J. G. Ettema, Siv G. E. Andersson... [TECHNICAL RESPONSE] Response to Comment on ?A 3-Hydroxypropionate/4-Hydroxybutyrate Autotrophic Carbon Dioxide Assimilation Pathway in Archaea? - Authors: Ivan A. Berg, Daniel Kockelkorn, Wolfgang Buckel, Georg Fuchs... [BOOKS ET AL.] MEDICINE: When Sleep Proves Impossible - Author: Michael L. Perlis... [BOOKS ET AL.] PHILOSOPHY OF SCIENCE: Addressing Complexity - Author: Kim Sterelny... [POLICY FORUM] ECOLOGY: Assisted Colonization and Rapid Climate Change - Moving species outside their historic ranges may mitigate loss of biodiversity in the face of global climate change.Authors: O. Hoegh-Guldberg, L. Hughes, S. McIntyre, D. B. Lindenmayer, C. Parmesan, H. P. Possingham, C. D. Thomas... [PERSPECTIVES] NEUROSCIENCE: Vertebrate Vocalizations - Did the mechanisms underlying vertebrate vocal abilities evolve from a single common ancestor?Authors: Daniel Margoliash, Melina E. Hale... [PERSPECTIVES] CLIMATE: Was the Younger Dryas Global? - Determining the geographical extent of a 1300-year cold event that occurred just before the current warm period requires accurate chronologies.Authors: Thomas V. Lowell, Meredith A. Kelly... [PERSPECTIVES] MATERIALS SCIENCE: Tracking Corrosion Cracking - The effects of both mechanical strain and oxidizing agents on grain boundaries in stainless steel can now be visualized.Author: Andreas Stierle... [PERSPECTIVES] DEVELOPMENTAL BIOLOGY: Grasping Limb Patterning - Recent studies offer insights into how a molecular signal controls the growth and patterning of the digits on vertebrate limbs during development.Authors: Clifford J. Tabin, Andrew P. McMahon... [PERSPECTIVES] APPLIED PHYSICS: Focus on X-ray Diffraction - The marriage of scanning x-ray microscopy with diffractive imaging provides a route to dramatic increases in spatial resolution.Author: Henry N. Chapman... [PERSPECTIVES] CLIMATE CHANGE: A Hotter Greenhouse? - A controversy about how high tropical temperatures were during a previous hot period may soon be resolved.Author: Matthew Huber... [SPECIAL SECTION] Deadly Defiance - Authors: Leslie Roberts, Stephen Simpson... [special/section] The Bacteria Fight Back - In their ongoing war against antibiotics, the bacteria seem to be winning, and the drug pipeline is verging on empty.Author: Gary Taubes... [SPECIAL/NEWS] Collateral Damage: The Rise of Resistant C. difficile - Resistance to antibiotics can bestow on a bacterial strain the advantage it needs to spread through the hospital environment. Clostridium difficile is an unfortunate case in point. Author: Gary Taubes... [SPECIAL/NEWS] Trench Warfare in a Battle With TB - As tuberculosis took off in Russia in the 1990s, one antibiotic after another failed; the state of Tomsk responded with an epidemic-fighting strategy pioneered by the Boston nonprofit Partners in Health. Deaths have declined, but resistance to drugs remains high.Author: Eliot Marshall... [SPECIAL/NEWS] Anti-TB Drugs: And Then There Were None - Two crucial antituberculosis drugs, capreomycin and cycloserine, are valued today precisely because they didn't seem valuable a short time ago. Author: Eliot Marshall... [SPECIAL/Special Issue Perspective] Antibiotics and Antibiotic Resistance Genes in Natural Environments - Author: José L. Martínez... [SPECIAL/Special Issue Perspective] Outwitting Multidrug Resistance to Antifungals - Authors: Brian C. Monk, Andre Goffeau... [BREVIA] Ice Scour Disturbance in Antarctic Waters - Icebergs have increasingly scoured the coastlines along the West Antarctic Peninsula as its ice shelves and glaciers have waned, affecting benthic marine communities.Authors: Dan A. Smale, Kirsty M. Brown, David K. A. Barnes, Keiron P. P. Fraser, Andrew Clarke... [RESEARCH ARTICLES] Identification of SLEEPLESS, a Sleep-Promoting Factor - A search for genetic modulators of sleep in Drosophila identified a gene encoding a brain protein that is likely secreted and is required for recovery from sleep deprivation. Authors: Kyunghee Koh, William J. Joiner, Mark N. Wu, Zhifeng Yue, Corinne J. Smith, Amita Sehgal... [REPORTS] Properties of Gamma-Ray Burst Progenitor Stars - Analysis of the x-ray afterglow of intense gamma-ray bursts shows that the bursts result from consumption of the outer part of a dense star and define the star's rotation rate.Authors: Pawan Kumar, Ramesh Narayan, Jarrett L. Johnson... [REPORTS] High-Resolution Scanning X-ray Diffraction Microscopy - Analysis of differences in diffraction patterns at each point along an x-ray scan of a material allows imaging of a buried structure with a resolution of 50 nanometers.Authors: Pierre Thibault, Martin Dierolf, Andreas Menzel, Oliver Bunk, Christian David, Franz Pfeiffer... [REPORTS] Observations of Intergranular Stress Corrosion Cracking in a Grain-Mapped Polycrystal - Tomographic imaging reveals that some grain boundaries in stainless steel are resistant to stress corrosion cracking, which leads to sudden brittle failure.Authors: A. King, G. Johnson, D. Engelberg, W. Ludwig, J. Marrow... [REPORTS] Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene - Measurements of the elastic properties of graphene agree with calculations for a defect-free material and show that it is indeed stronger than other materials.Authors: Changgu Lee, Xiaoding Wei, Jeffrey W. Kysar, James Hone... [REPORTS] Measurement of the Distribution of Site Enhancements in Surface-Enhanced Raman Scattering - The distribution of electric field-enhancing sites on a nanostructured substrate is measured by using the enhanced field to damage those sites.Authors: Ying Fang, Nak-Hyun Seong, Dana D. Dlott... [REPORTS] Patagonian Glacier Response During the Late Glacial?Holocene Transition - Dating of a glacial moraine in southern Patagonia implies that increased precipitation caused glacier growth after a period of Northern Hemisphere cooling 11,000 years ago.Authors: Robert P. Ackert Jr., Richard A. Becker, Brad S. Singer, Mark D. Kurz, Marc W. Caffee, David M. Mickelson... [REPORTS] Electronic Publication and the Narrowing of Science and Scholarship - As journals become available electronically, scientists and scholars have more articles at their fingertips but cite relatively fewer, and these tend to be more recent.Author: James A. Evans... [REPORTS] The Evolution and Distribution of Species Body Size - A model of evolutionary body-size changes that accounts for physical constraints and extinction risk reproduces the size distribution of land mammals from the Quaternary.Authors: Aaron Clauset, Douglas H. Erwin... [REPORTS] Four-jointed Is a Golgi Kinase That Phosphorylates a Subset of Cadherin Domains - A newly described type of protein kinase found in the Golgi phosphorylates signaling proteins on amino acids that are destined to be within extracellular domains.Authors: Hiroyuki O. Ishikawa, Hideyuki Takeuchi, Robert S. Haltiwanger, Kenneth D. Irvine... [REPORTS] Signal-Mediated Dynamic Retention of Glycosyltransferases in the Golgi - Glycosyltransferase enzymes stay in the Golgi in the face of continuing membrane traffic because a receptor links their cytoplasmic tails to a recycling coated vesicle.Authors: Linna Tu, William C. S. Tai, Lu Chen, David K. Banfield... [REPORTS] Anomalous Type 17 Response to Viral Infection by CD8+ T Cells Lacking T-bet and Eomesodermin - Two transcription factors cooperate to ensure the correct functioning of CD8+ T cells during the response to infection.Authors: Andrew M. Intlekofer, Arnob Banerjee, Naofumi Takemoto, Scott M. Gordon, Caitlin S. DeJong, Haina Shin, Christopher A. Hunter, E. John Wherry, Tullia Lindsten, Steven L. Reiner... [REPORTS] Riboswitches in Eubacteria Sense the Second Messenger Cyclic Di-GMP - The bacterial second messenger cyclic di-guanosine monophosphate controls a wide variety of cellular functions by acting on a riboswitch motif in numerous messenger RNAs.Authors: N. Sudarsan, E. R. Lee, Z. Weinberg, R. H. Moy, J. N. Kim, K. H. Link, R. R. Breaker... [REPORTS] Bottom-Up Dependent Gating of Frontal Signals in Early Visual Cortex - Higher brain centers can modulate activity in the cortical regions that directly receive visual input, but only when a visual stimulus is present.Authors: Leeland B. Ekstrom, Pieter R. Roelfsema, John T. Arsenault, Giorgio Bonmassar, Wim Vanduffel... [REPORTS] Evolutionary Origins for Social Vocalization in a Vertebrate Hindbrain?Spinal Compartment - The conserved neural circuitry for vocal communication in fish and other tetrapods suggests that this function may have originated prior to the evolution of bony vertebrates.Authors: Andrew H. Bass, Edwin H. Gilland, Robert Baker... [REPORTS] Orbitofrontal Dysfunction in Patients with Obsessive-Compulsive Disorder and Their Unaffected Relatives - The abnormally low activation in the frontal cortex of individuals with obsessive compulsive disorder and their close relatives may confer a risk for the disease.Authors: Samuel R. Chamberlain, Lara Menzies, Adam Hampshire, John Suckling, Naomi A. Fineberg, Natalia del Campo, Mike Aitken, Kevin Craig, Adrian M. Owen, Edward T. Bullmore, Trevor W. Robbins, Barbara J. Sahakian... [PODCASTS] Science Podcast - Author: ... Copyright © 2008, Chicago Best Price. All Rights Reserved. |