Science Podcast In this week's show: Connecting disorder and stereotyping, GM-organic coexistence, stellar variations, and more. Listen now.
Want to add other e-mail alerts? Change your preferences? Cancel alerts? Log in at http://www.sciencemag.org/cgi/etoc!
In this week's issue:
Editorial
Merged Cultures to Empower Women
K.-A. Jones et al.
http://www.sciencemag.org/cgi/content/summary/332/6026/149
Research Summaries
This Week in Science
Editor summaries of this week's papers.
http://www.sciencemag.org/content/vol332/issue6026/twis.dtl
Editors' Choice
Highlights of the recent literature
http://www.sciencemag.org/content/vol332/issue6026/twil.dtl
News of the Week
This Week's Section
http://www.sciencemag.org/cgi/content/summary/332/6026/154-a
Around the World
In science news around the world this week, Japan's nuclear crisis is dragging on, two new studies support an Asian source for Haiti's cholera outbreak, U.K. scientists took a new accelerator on a test run, oceanographers have found the remains of Air France Flight 447 in the South Atlantic Ocean, and Brazil's science ministry is creating a commission on scientific integrity after Elsevier said it would retract 11 papers, the senior author of which is a chemist at the State University of Campinas.
http://www.sciencemag.org/cgi/content/summary/332/6026/154-b
Newsmakers
This week's Newsmakers are Caltech neuroscientist Christof Koch, who is moving to Seattle to become chief scientific officer of the Allen Institute for Brain Science, and astrophysicist Martin Rees, who has been awarded the Templeton Foundation's annual prize for his "profound insights on the cosmos [that] have provoked vital questions that speak to humanity's highest hopes and worst fears."
http://www.sciencemag.org/cgi/content/summary/332/6026/155-a
Random Sample
The biggest animals ever to walk the Earth are about to invade the Big Apple. A new scanning-and-prototyping technique has helped to explain why Knut, the world-famous polar bear, died suddenly in front of hundreds of shocked visitors to the Berlin Zoological Garden last month. And this week's numbers quantify India's population and the zettabytes of business-related information processed by the world's computer servers in 2008.
http://www.sciencemag.org/cgi/content/summary/332/6026/155-b
Findings
http://www.sciencemag.org/content/vol332/issue6026/findings.dtl
News & Analysis
First Specific Drugs Raise Hopes for Hepatitis C
Regulatory agencies in both the United States and Europe are soon expected to green-light the first two antiviral drugs specifically developed to treat chronic hepatitis C, a treacherous infection that can cause cirrhosis of the liver and liver cancer, often decades after infection occurs.
http://www.sciencemag.org/cgi/content/summary/332/6026/159
First Detection of Ozone Hole Recovery Claimed
Researchers have long projected that they will not glimpse the first signs that the Antarctic ozone hole is healing until well past 2020. But for the first time, a group of researchers claims they can already see the ozone hole slowly recovering.
http://www.sciencemag.org/cgi/content/summary/332/6026/160
Daring Experiment in Higher Education Opens Its Doors
Last month saw the launch of the South University of Science and Technology of China, a bold challenge to the country's education system that enrolls high-flying students nominated not only for their grades but also for their creativity and passion for learning.
http://www.sciencemag.org/cgi/content/summary/332/6026/161
DOE Pulls the Plug on Massive Training Initiative
The White House has dropped an ambitious 10-year, $1.6 billion education and training initiative at the Department of Energy, dubbed "Regaining our Energy Science and Engineering Edge," from DOE's 2012 budget request.
http://www.sciencemag.org/cgi/content/summary/332/6026/162-a
NSF Hits Ceiling on Graduate Fellowships
The president's 2012 budget request suspends plans to triple the number of graduate research fellowships at the National Science Foundation.
http://www.sciencemag.org/cgi/content/summary/332/6026/162-b
Signature on Visitor's Form Fuels Stanford v. Roche Court Battle
A visiting university scientist's signature on a visitor's agreement at a biotech company is at the center of a major patent fight before the U.S. Supreme Court.
http://www.sciencemag.org/cgi/content/summary/332/6026/163
Plans Afoot to Extend Welcome Mat to More U.S.-Trained Science Grads
Last week, a key congressional panel heard proposals to retain the "best and brightest" foreign students without disadvantaging U.S. workers. But the approach of the 2012 elections means the political window of opportunity won't stay open for very long.
http://www.sciencemag.org/cgi/content/summary/332/6026/164
Winds of Change Leave Bioscientists Scrambling
In a 5-year plan launched this month, Singapore will boost public spending on research by 20% compared with spending during the previous 5 years. This largesse comes with a price: The government is demanding more economic bang from its research bucks.
http://www.sciencemag.org/cgi/content/summary/332/6026/165
News Focus
Can Biotech and Organic Farmers Get Along?
The U.S. Department of Agriculture has been taking a closer look at the impact of biotech crops on organic farms. Research is providing tools to help them thrive side by side, but the politics are tricky.
http://www.sciencemag.org/cgi/content/summary/332/6026/166
Scientist in the Middle of the GM-Organic Wars
For Carol Mallory-Smith of Oregon State University, the migration of genes in agricultural crops is not just a research topic or a matter of policy debate. It's the cause of a vexing quarrel among her neighbors: the farmers of Oregon's Willamette Valley.
http://www.sciencemag.org/cgi/content/summary/332/6026/168
Electrons Surf Sound Waves To Connect the Quantum Dots
Physicists have used sound waves to transport individual electrons over significant distances between artificial atoms on a chip, they reported at the American Physical Society meeting.
http://www.sciencemag.org/cgi/content/summary/332/6026/170-a
Ice Is Predicted to Be Weirder Still
A team of theorists reported at the American Physical Society meeting that a film of ice only two molecules thick may form the oddest of all crystalline structures, a so-called quasicrystal, which lacks the exact repeatability of an ordinary crystal structure but preserves other symmetries of a crystal.
http://www.sciencemag.org/cgi/content/summary/332/6026/170-b
One Cool Way to Erase Information
While erasing information, a tiny system can sometimes generate less than the minimum amount of heat required by a principle of thermodynamics, physicists reported at the American Physical Society meeting.
http://www.sciencemag.org/cgi/content/summary/332/6026/171-a
Snapshots From the Meeting
Snapshots from the American Physical Society meeting include lowering the energy of a vibrating widget enough to achieve the least motion allowed by quantum mechanics—the so-called ground state of motion—and a network model that demonstrates that if 10% of the members of a group hold an unshakable conviction, their view will eventually win out.
http://www.sciencemag.org/cgi/content/summary/332/6026/171-b
Letters
Food for Thought on Climate Policy
http://www.sciencemag.org/cgi/content/full/332/6026/173-a
AIDS Prevention Plans Must Reflect Local Values
http://www.sciencemag.org/cgi/content/full/332/6026/173-b
NSF Program Benefits Schools in Need
http://www.sciencemag.org/cgi/content/full/332/6026/173-c
Drug Regulatory Systems Must Foster Innovation
http://www.sciencemag.org/cgi/content/full/332/6026/174
Viability of GM Fungi Crucial to Malaria Control
http://www.sciencemag.org/cgi/content/full/332/6026/175
Books et al.
A Séance for Science
Hanna Rose Shell
Art by Redniss serves as a matrix for presenting episodes from the life and research of Marie Curie and interjections about radiation, its effects, and its uses.
http://www.sciencemag.org/cgi/content/summary/332/6026/176
A Call to Reorient Healthcare
Ronald L. Krall
After diagnosing the problems afflicting healthcare in the United States, Bortz prescribes a remedy.
http://www.sciencemag.org/cgi/content/summary/332/6026/177-a
Books Received
A listing of books received at Science during the week ended 01 April 2011.
http://www.sciencemag.org/cgi/content/summary/332/6026/177-b
Policy Forum
Mekong Hydropower Development
R. E. Grumbine and J. Xu
Pending decisions may unleash lower Mekong dam construction, despite management challenges and troubling environmental and social impacts.
http://www.sciencemag.org/cgi/content/summary/332/6026/178
Perspectives
Shooting for the Stars
M. H. Montgomery
Observations with the Kepler space telescope are revealing details of the internal structure of distant stars.
http://www.sciencemag.org/cgi/content/summary/332/6026/180
Climbing in 190 Dimensions
Michael Yarus
Creation of an improved RNA-copying ribozyme offers hope of realizing RNA-catalyzed self-replication.
http://www.sciencemag.org/cgi/content/summary/332/6026/181
The Phase Behavior of Interfaces
Martin P. Harmer
Grain boundaries between crystals, which can control materials properties, can interconvert between well-defined equilibrium structures.
http://www.sciencemag.org/cgi/content/summary/332/6026/182
Minor Splicing, Disrupted
H. K. J. Pessa and M. J. Frilander
The repertoire of spliceosomal components containing mutations associated with diseases is expanded to include a small nuclear RNA.
http://www.sciencemag.org/cgi/content/summary/332/6026/184
Rapid Insect Evolution by Symbiont Transfer
F. M. Jiggins and G. D. D. Hurst
A symbiotic bacteria dramatically increases reproduction and survival in a common insect pest.
http://www.sciencemag.org/cgi/content/summary/332/6026/185
Eosinophils Forestall Obesity
R. M. Maizels and J. E. Allen
Eosinophils in adipose tissue maintain metabolic homeostasis by controlling macrophage activity.
http://www.sciencemag.org/cgi/content/summary/332/6026/186
Brevia
Kepler Detected Gravity-Mode Period Spacings in a Red Giant Star
P. G. Beck et al.
Asteroseismic observations with the Kepler satellite probed the deep interior of an evolved star.
http://www.sciencemag.org/cgi/content/abstract/332/6026/205
Research Articles
Nanometer-Thick Equilibrium Films: The Interface Between Thermodynamics and Atomistics
M. Baram et al.
Model experiments show that nanometer-thick films at interfaces reduce interface energy and form an equilibrium state.
http://www.sciencemag.org/cgi/content/abstract/332/6026/206
Ribozyme-Catalyzed Transcription of an Active Ribozyme
A. Wochner et al.
A functional RNA has been synthesized by an RNA enzyme from mononucleotide building blocks.
http://www.sciencemag.org/cgi/content/abstract/332/6026/209
Reports
Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission
W. J. Chaplin et al.
Measurements of 500 Sun-like stars show that their properties differ from those predicted by stellar population models.
http://www.sciencemag.org/cgi/content/abstract/332/6026/213
HD 181068: A Red Giant in a Triply Eclipsing Compact Hierarchical Triple System
A. Derekas et al.
The Kepler satellite reveals details of the oscillations patterns of an evolved star in an exotic triple-star system.
http://www.sciencemag.org/cgi/content/abstract/332/6026/216
Surface-Plasmon Holography with White-Light Illumination
M. Ozaki et al.
A technique based on light-induced electronic excitations on a metal-film surface is used for three-dimensional color displays.
http://www.sciencemag.org/cgi/content/abstract/332/6026/218
The Hot Summer of 2010: Redrawing the Temperature Record Map of Europe
D. Barriopedro et al.
Large parts of eastern Europe experienced exceptional warmth during the summer of 2010.
http://www.sciencemag.org/cgi/content/abstract/332/6026/220
13C NMR Guides Rational Design of Nanocatalysts via Chemisorption Evaluation in Liquid Phase
K. Tedsree et al.
Nuclear magnetic resonance spectroscopy can reveal the strength of substrate interactions with heterogeneous catalysts.
http://www.sciencemag.org/cgi/content/abstract/332/6026/224
Oriented 2D Covalent Organic Framework Thin Films on Single-Layer Graphene
J. W. Colson et al.
Microporous covalent organic frameworks, which usually form as insoluble powders, grow as crystalline films on graphene.
http://www.sciencemag.org/cgi/content/abstract/332/6026/228
A Virophage at the Origin of Large DNA Transposons
M. G. Fischer and C. A. Suttle
A parasite of a giant DNA virus that rescues the host has been shown to be the progenitor of a widespread transposon.
http://www.sciencemag.org/cgi/content/abstract/332/6026/231
A Dynamic Knockout Reveals That Conformational Fluctuations Influence the Chemical Step of Enzyme Catalysis
G. Bhabha et al.
An Escherichia coli dihydrofolate reductase mutant is catalytically defective, because motions in the active site are impaired.
http://www.sciencemag.org/cgi/content/abstract/332/6026/234
Mutations in U4atac snRNA, a Component of the Minor Spliceosome, in the Developmental Disorder MOPD I
H. He et al.
Minor RNA splicing defects can cause a major human developmental disorder.
http://www.sciencemag.org/cgi/content/abstract/332/6026/238
Association of TALS Developmental Disorder with Defect in Minor Splicing Component U4atac snRNA
P. Edery et al.
Mutation in a small nuclear RNA hinders splicing of pre–messenger RNAs and causes the severe malformations of Taybi-Linder syndrome.
http://www.sciencemag.org/cgi/content/abstract/332/6026/240
Eosinophils Sustain Adipose Alternatively Activated Macrophages Associated with Glucose Homeostasis
D. Wu et al.
Regulation of adipose tissue macrophages by eosinophils reveals an unexpected role for eosinophils in metabolic homeostasis.
http://www.sciencemag.org/cgi/content/abstract/332/6026/243
AMP-Activated Protein Kinase Regulates Neuronal Polarization by Interfering with PI 3-Kinase Localization
S. Amato et al.
A bioenergy-sensing pathway determines axon initiation and growth in neurons.
http://www.sciencemag.org/cgi/content/abstract/332/6026/247
Coping with Chaos: How Disordered Contexts Promote Stereotyping and Discrimination
D. A. Stapel and S. Lindenberg
Messiness makes people long for orderliness, which results in a rush to categorize and simplify.
http://www.sciencemag.org/cgi/content/abstract/332/6026/251
Rapid Spread of a Bacterial Symbiont in an Invasive Whitefly Is Driven by Fitness Benefits and Female Bias
A. G. Himler et al.
A Rickettsia bacterium promotes its own geographical spread by manipulating its insect host’s sex ratio and fecundity.
http://www.sciencemag.org/cgi/content/abstract/332/6026/254
Technical Comments
Comment on "Calcareous Nannoplankton Response to Surface-Water Acidification Around Oceanic Anoxic Event 1a"
S. J. Gibbs et al.
http://www.sciencemag.org/cgi/content/abstract/332/6026/175-b
Response to Comment on "Calcareous Nannoplankton Response to Surface-Water Acidification Around Oceanic Anoxic Event 1a"
E. Erba et al.
http://www.sciencemag.org/cgi/content/abstract/332/6026/175-c
Departments
New Products
A weekly roundup of information on newly offered instrumentation, apparatus, and laboratory materials of potential interest to researchers.
http://www.sciencemag.org/cgi/content/summary/332/6026/257-a
Science Podcast
http://www.sciencemag.org/cgi/content/summary/332/6026/257-b
Unsubscribe or edit your subscriptions for this service at:
http://www.sciencemag.org/cgi/alerts/main
Written requests to unsubscribe may be sent to:
AAAS / Science, 1200 New York Avenue NW, Washington DC 20005, U.S.A.
Tidak ada komentar:
Posting Komentar