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Agenda Scientifique
Revues - Biblio
Revues - Biblio - Sciences

Science: Current Issue


The best in science news, commentary, and research

This Week in Science  Voir?

Vaginal Gel Versus HIV | Antimalarial Drug Candidate | Icy Adsorption | Free Falling Vortices | Join the Club | From Simplicity to Complexity | Sea of Plastic | Skin Reaction | Cosmic Fullerenes | No Guide to the Future | Gee-Up, NEDD8 | Regulation of Energy Homeostasis | Here to Stay
(01/01/1970 @ 01:00)
Editors' Choice  Voir?

Planetary Science: Lunar Exposure | Cell Biology: Turn On and Stay Put | Microbiology: Monsters in the Mangrove | Chemistry: Easing in Fluorine
(01/01/1970 @ 01:00)
Random Samples  Voir?

Dolphin Spray Yields DNA | Outnumbered | Pulse of the City | Chock-Full of Genes
(01/01/1970 @ 01:00)
[Editorial] China's Research Culture  Voir?

Authors: Yigong Shi, Yi Rao
(01/01/1970 @ 01:00)
[News of the Week] Embryonic Stem Cells: Controversial Ruling Throws U.S. Research Into a Tailspin  Voir?

A U.S. judge's surprise decision last week to block government funding of human embryonic stem cell research has left scientists across the country confused, upset, and angry.

Authors: Jocelyn Kaiser, Gretchen Vogel
(01/01/1970 @ 01:00)
[News of the Week] Climate Change: Panel Faults IPCC Leadership But Praises Its Conclusions  Voir?

A new independent review of the Intergovernmental Panel on Climate Change says the increased public scrutiny IPCC is facing and the growing importance of its work mean that it must do better than it's been doing.

Author: Eli Kintisch
(01/01/1970 @ 01:00)
[News of the Week] Antarctica: In Ground-Based Astronomy's Final Frontier, China Aims for New Heights  Voir?

At a workshop last month, astronomers unveiled plans to build two major telescopes at Dome A on the East Antarctic icecap during the Chinese government's next 5-year plan, to start in 2011.

Author: Richard Stone
(01/01/1970 @ 01:00)
[News of the Week] ScienceNOW.org: From Science's Online Daily News Site  Voir?

ScienceNOW reported this week on the first feast, the world's smallest refrigerator, the backfiring of "hunting for conservation," and a pea-sized frog, among other stories.
(01/01/1970 @ 01:00)
[News of the Week] Energy Innovation: Novel Grant Promises Greener Buildings, Regional Growth  Voir?

Last week, a consortium led by Pennsylvania State University won a federal competition for $129 million over 5 years to spur efforts to develop technologies for making buildings more energy efficient.

Author: Jeffrey Mervis
(01/01/1970 @ 01:00)
[News of the Week] Newsmaker Interview: Frank Gannon: Ireland's Departing Research Chief on Irish and European Science  Voir?

Frank Gannon probably could have finished out his career comfortably as director of the national funding agency Science Foundation Ireland (SFI). But the biologist will resign his position at the end of the year and head off to Australia to become director of the Queensland Institute of Medical Research.

Author: John Travis

... / ... Lire la suite

(01/01/1970 @ 01:00)
[News of the Week] ScienceInsider: From the Science Policy Blog  Voir?

ScienceInsider reported this week that the editor of the journal Cognition says he believes that fabrication is the most plausible explanation for data in a 2002 paper by Harvard University's Marc Hauser involving cotton-top tamarins, among other stories.
(01/01/1970 @ 01:00)
[News Focus] Mammoth-Killer Impact Flunks Out  Voir?

After a new study failed to find nanodiamonds, impact experts are flatly rejecting outsiders' claims that an impact 12,900 years ago devastated the megafauna.

Author: Richard A. Kerr
(01/01/1970 @ 01:00)
[News Focus] Profile: François Nosten: The Dour Frenchman on Malaria's Frontier  Voir?

When he arrived at the dangerous Thai-Burmese border in 1984, François Nosten barely knew what research was. Today, he's one of the world's top malaria scientists.

Author: Martin Enserink
(01/01/1970 @ 01:00)
[News Focus] Astrophysics: An Unsettled Debate About the Chemistry of the Sun  Voir?

Researchers thought they knew the sun very well. Now, they are squabbling over the abundance of different elements in it.

Author: Yudhijit Bhattacharjee
(01/01/1970 @ 01:00)
[Letter] Give Beach Ecosystems Their Day in the Sun  Voir?



Authors: Jenifer E. Dugan, Omar Defeo, Eduardo Jaramillo, Alan R. Jones, Mariano Lastra, Ronel Nel, Charles H. Peterson, Felicita Scapini, Thomas Schlacher, David S. Schoeman
(01/01/1970 @ 01:00)
[Letter] Methane from the East Siberian Arctic Shelf  Voir?



Authors: Vasilii V. Petrenko, David M. Etheridge, Ray F. Weiss, Edward J. Brook, Hinrich Schaefer, Jeffrey P. Severinghaus, Andrew M. Smith, Dave Lowe, Quan Hua, Katja Riedel
(01/01/1970 @ 01:00)
[Letter] Methane from the East Siberian Arctic Shelf—Response  Voir?



Authors: Natalia Shakhova, Igor Semiletov, Örjan Gustafsson
(01/01/1970 @ 01:00)
[Letter] Readers' Poll Results: The Time of Young Scientists  Voir?

(01/01/1970 @ 01:00)
[Letter] Candidate Gene Approach's Missing Link  Voir?



Author: Janardan P. Pandey
(01/01/1970 @ 01:00)
[Book Review] Social Psychology: Mood Swings  Voir?

Casti applies his background in complexity studies to explore the role of psychology in shaping the mass behavior of humans.

Author: Richard Taylor
(01/01/1970 @ 01:00)
[Book Review] Astronomy: Findings Brought to Ground  Voir?

Through discussions of particular observatories around the globe, the contributors explore the practices, technologies, and contexts of 19th-century astronomy.

Author: Gustav Holmberg
(01/01/1970 @ 01:00)
[Books et al.] Books Received  Voir?

A listing of books received at Science during the week ended 27 August 2010.
(01/01/1970 @ 01:00)
[Education Forum] Science Education: Growing Roles for Science Education in Community Colleges  Voir?

To help meet economic challenges, 2- and 4-year colleges must collaborate to improve student completion and transfer.

Author: George R. Boggs
(01/01/1970 @ 01:00)
[Perspective] Microbiology: Is the Tide Turning for New Malaria Medicines?  Voir?

A return to traditional screening methods has rapidly produced a candidate malaria drug.

Author: Timothy N. C. Wells
(01/01/1970 @ 01:00)
[Perspective] Immunology: CAR'ing for the Skin  Voir?

Epidermal T cell responses to injury and infection require stimulation by a protein that maintains cell adhesion and normal dermal integrity.

Authors: Andrey S. Shaw, Yina Huang
(01/01/1970 @ 01:00)
[Perspective] Paleontology: Marine Biodiversity Dynamics over Deep Time  Voir?

Analysis of a large fossil database puts a new curve on the history of marine life.

Author: Charles R. Marshall
(01/01/1970 @ 01:00)
[Perspective] Chemistry: Just Add Water  Voir?

A graphene overlayer is used to map the structure of water from ice to liquid, one atomic layer at a time.

Author: Mikhail I. Katsnelson
(01/01/1970 @ 01:00)
[Perspective] Transcription: Targeting the Core of Transcription  Voir?

An enzyme that senses metabolic stress phosphorylates a chromatin protein to control gene expression and adaptive responses.

Author: D. Grahame Hardie
(01/01/1970 @ 01:00)
[Perspective] Astronomy: Fullerenes and Cosmic Carbon  Voir?

Hydrogen-poor conditions in a planetary nebula enable the detection of carbon-cage molecules C60 and C70, confirming the existence of fullerenes in space.

Authors: Pascale Ehrenfreund, Bernard H. Foing
(01/01/1970 @ 01:00)
[Review] Heavy Fermions and Quantum Phase Transitions  Voir?



Authors: Qimiao Si, Frank Steglich
(01/01/1970 @ 01:00)
[Brevia] Chlorine Isotope Fractionation in the Stratosphere  Voir?

Isotope fractionation in a common refrigerant may provide insights into the mechanism of stratospheric ozone depletion.

Authors: J. C. Laube, J. Kaiser, W. T. Sturges, H. Bönisch, A. Engel
(01/01/1970 @ 01:00)
[Research Article] Effectiveness and Safety of Tenofovir Gel, an Antiretroviral Microbicide, for the Prevention of HIV Infection in Women  Voir?

Tenofovir in a vaginal gel formulation shows significant protection against HIV infection in a randomized control trial.

Authors: Quarraisha Abdool Karim, Salim S. Abdool Karim, Janet A. Frohlich, Anneke C. Grobler, Cheryl Baxter, Leila E. Mansoor, Ayesha B. M. Kharsany, Sengeziwe Sibeko, Koleka P. Mlisana, Zaheen Omar, Tanuja N. Gengiah, Silvia Maarschalk, Natasha Arulappan, Mukelisiwe Mlotshwa, Lynn Morris, Douglas Taylor, on behalf of the CAPRISA 004 Trial Group

... / ... Lire la suite

(01/01/1970 @ 01:00)
[Research Article] Spiroindolones, a Potent Compound Class for the Treatment of Malaria  Voir?

High-throughput screening has offered up an oral antimalarial drug and pointers to its mechanism of action.

Authors: Matthias Rottmann, Case McNamara, Bryan K. S. Yeung, Marcus C. S. Lee, Bin Zou, Bruce Russell, Patrick Seitz, David M. Plouffe, Neekesh V. Dharia, Jocelyn Tan, Steven B. Cohen, Kathryn R. Spencer, Gonzalo E. González-Páez, Suresh B. Lakshminarayana, Anne Goh, Rossarin Suwanarusk, Timothy Jegla, Esther K. Schmitt, Hans-Peter Beck, Reto Brun, Francois Nosten, Laurent Renia, Veronique Dartois, Thomas H. Keller, David A. Fidock, Elizabeth A. Winzeler, Thierry T. Diagana

... / ... Lire la suite

(01/01/1970 @ 01:00)
[Report] Detection of C60 and C70 in a Young Planetary Nebula  Voir?

Hydrogen-poor conditions allow fullerenes to form in space.

Authors: Jan Cami, Jeronimo Bernard-Salas, Els Peeters, Sarah Elizabeth Malek
(01/01/1970 @ 01:00)
[Report] Real-Time Dynamics of Single Vortex Lines and Vortex Dipoles in a Bose-Einstein Condensate  Voir?

The temporal evolution of vortices in a superfluid is revealed by imaging an ultracold atomic cloud undergoing free fall.

Authors: D. V. Freilich, D. M. Bianchi, A. M. Kaufman, T. K. Langin, D. S. Hall
(01/01/1970 @ 01:00)
[Report] Plastic Accumulation in the North Atlantic Subtropical Gyre  Voir?

The amount of plastic debris in the surface waters of the western North Atlantic Ocean has plateaued over the past 22 years.

Authors: Kara Lavender Law, Skye Morét-Ferguson, Nikolai A. Maximenko, Giora Proskurowski, Emily E. Peacock, Jan Hafner, Christopher M. Reddy
(01/01/1970 @ 01:00)
[Report] Graphene Visualizes the First Water Adlayers on Mica at Ambient Conditions  Voir?

Water trapped between mica and graphene layers at ambient conditions was imaged with atomic force microscopy.

Authors: Ke Xu, Peigen Cao, James R. Heath
(01/01/1970 @ 01:00)
[Report] The Shifting Balance of Diversity Among Major Marine Animal Groups  Voir?

Future assemblies of animals following mass extinction cannot be predicted by analyses of Phanerozoic fossils.

Author: J. Alroy
(01/01/1970 @ 01:00)
[Report] The Spread of Behavior in an Online Social Network Experiment  Voir?

An online experiment shows how network structure affects the spread of health behavior.

Author: Damon Centola
(01/01/1970 @ 01:00)
[Report] Human-Restricted Bacterial Pathogens Block Shedding of Epithelial Cells by Stimulating Integrin Activation  Voir?

Bacterial colonization of the mucosa is facilitated if the microbes engage a human receptor that counteracts epithelial exfoliation.

Authors: Petra Muenzner, Verena Bachmann, Wolfgang Zimmermann, Jochen Hentschel, Christof R. Hauck
(01/01/1970 @ 01:00)
[Report] Signaling Kinase AMPK Activates Stress-Promoted Transcription via Histone H2B Phosphorylation  Voir?

The energy sensor AMPK facilitates gene transcription by localizing to chromatin and phosphorylating histone H2B.

Authors: David Bungard, Benjamin J. Fuerth, Ping-Yao Zeng, Brandon Faubert, Nancy L. Maas, Benoit Viollet, David Carling, Craig B. Thompson, Russell G. Jones, Shelley L. Berger
(01/01/1970 @ 01:00)
[Report] The Junctional Adhesion Molecule JAML Is a Costimulatory Receptor for Epithelial γδ T Cell Activation  Voir?

A costimulatory receptor for immune cells in the skin is identified.

Authors: Deborah A. Witherden, Petra Verdino, Stephanie E. Rieder, Olivia Garijo, Robyn E. Mills, Luc Teyton, Wolfgang H. Fischer, Ian A. Wilson, Wendy L. Havran
(01/01/1970 @ 01:00)
[Report] The Molecular Interaction of CAR and JAML Recruits the Central Cell Signal Transducer PI3K  Voir?

Ligand engagement and initiation of signaling has been imaged for a costimulatory receptor for immune cells in the skin.

Authors: Petra Verdino, Deborah A. Witherden, Wendy L. Havran, Ian A. Wilson
(01/01/1970 @ 01:00)
[Report] Glutamine Deamidation and Dysfunction of Ubiquitin/NEDD8 Induced by a Bacterial Effector Family  Voir?

Pathogenic bacterial proteins interfere with eukaryotic ubiquitination pathways to induce cytopathic effects.

Authors: Jixin Cui, Qing Yao, Shan Li, Xiaojun Ding, Qiuhe Lu, Haibin Mao, Liping Liu, Ning Zheng, She Chen, Feng Shao
(01/01/1970 @ 01:00)
New Products  Voir?

A weekly roundup of information on newly offered instrumentation, apparatus, and laboratory materials of potential interest to researchers.
(01/01/1970 @ 01:00)
[Podcast] Science Podcast  Voir?

The show includes how social network structure affects the spread of behavior, challenging the mammoth-killer impact hypothesis, your letters to Science, and more.
(01/01/1970 @ 01:00)

Dernière mise à jour : 08/09/2010 @ 19:27
 
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