Contents
Vol 314, Issue 5798
Contents
This Week in Science
Editorial
Editors' Choice
NetWatch
Products & Materials
News of the Week
ScienceScope
Random Samples
Newsmakers
News Focus
Letters
Books
Policy Forum
Perspectives
Association Affairs
Brevia
- Exposure to Scientific Theories Affects Women's Math Performance
Ascribing gender differences in performance on math tests to genetics adversely affects girls' scores on subsequent tests, but ascribing such differences to experience does not.
Research Articles
- Correcting Quantum Errors with Entanglement
Entanglement-assisted quantum error correction simplifies the theory of stabilizer codes, allowing a new class of efficient codes to protect quantum information from decoherence.
- Anisotropy and Corotation of Galactic Cosmic Rays
Anisotropies in the distribution of cosmic rays in the sky, including an excess from a spiral arm of the Milky Way, show that cosmic rays corotate with the Galaxy.
Reports
- Isolated Single-Cycle Attosecond Pulses
Single-cycle 130-attosecond light pulses, useful for probing electron dynamics, can be generated by modulating the polarization state of 5-femtosecond pulses in argon.
- Molecular Imaging Using a Targeted Magnetic Resonance Hyperpolarized Biosensor
Magnetic resonance images of a single biomolecule can be obtained from the amplified signal of a bound xenon probe that exchanges with surrounding bulk xenon.
- Wetland Sedimentation from Hurricanes Katrina and Rita
Hurricanes, not flood deposits, may supply most of the inorganic sediments that sustain coastal salt marshes near the mouth of the Mississippi River.
- A Combined Mitigation/Geoengineering Approach to Climate Stabilization
Global warming could be mitigated by the injection of sulfate aerosol precursors into the atmosphere, thus increasing cloudiness.
- Dendritic Cell Stimulation by Mycobacterial Hsp70 Is Mediated Through CCR5
The protein through which HIV infects immune cells normally senses a heat shock protein from mycobacteria to initiate an antibacterial response.
- Direct Demonstration of an Adaptive Constraint
The intrinsic properties of a leucine biosynthetic enzyme can prevent the test-tube evolution of seemingly adaptive traits—increased catalysis rate, for example.
- An Essential Role for LEDGF/p75 in HIV Integration
A cellular factor is required for HIV integration and represents a potential drug target.
- Dynamic Nuclear Actin Assembly by Arp2/3 Complex and a Baculovirus WASP-Like Protein
A virus triggers actin assembly in the nucleus of infected cells in order to begin its own replication.
- S6K1- and ßTRCP-Mediated Degradation of PDCD4 Promotes Protein Translation and Cell Growth
A protein identified as a tumor suppressor controls overall protein synthesis rates through a translation initiation factor, promoting cell proliferation and growth.
- Functional Delivery of a Cytosolic tRNA into Mutant Mitochondria of Human Cells
Proteins from a parasite can restore function of human cells with defective mitochondria, suggesting a possible therapeutic approach for certain genetic muscle diseases.
- Common Kibra Alleles Are Associated with Human Memory Performance
Correlation of performance on a memory task with polymorphisms in the whole human genome points to a neuronal protein as one possible determinant of human memory.
- Long-Term Sustainability of a High-Energy, Low-Diversity Crustal Biome
Nearly 3 kilometers deep in Earth's crust, a simple bacterial community has survived for millions of years on geological sources of sulfate and hydrogen.
Technical Comments
