Contents
Vol 315, Issue 5813
Special Issue
Sustainability and Energy
Introduction to special issue
News
Perspectives
Special Feature
Special Feature
Special Feature
Contents
This Week in Science
Editorial
Editors' Choice
Departments
Products & Materials
News of the Week
ScienceScope
Random Samples
Newsmakers
News Focus
BRAIN, MUSIC, AND SOUND RESEARCH CENTER
Letters
Books
Policy Forum
Perspectives
Brevia
- Enceladus: Cosmic Graffiti Artist Caught in the Act
Hubble Space Telescope observations indicate that particles emitted from Saturn's moon Enceladus collide with other satellites in the same ring, increasing their albedos.
Research Articles
- Direct Measurements of the Convective Recycling of the Upper Troposphere
Direct measurements imply that the rate of deep convection in the troposphere may be faster than predicted, affecting our understanding of chemical reactions in air.
- A Membrane Receptor for Retinol Binding Protein Mediates Cellular Uptake of Vitamin A
A membrane protein with a previously unknown function binds the carrier protein for vitamin A, causes release of the vitamin, and transports it into cells.
Reports
- A Common Explosion Mechanism for Type Ia Supernovae
Spectral measurement of the expansion of type Ia supernovae shows that they all formed from stars of essentially the same mass, affirming their use for distance measurements.
- Coding/Decoding and Reversibility of Droplet Trains in Microfluidic Networks
A microfluidics device in which droplets move into one of two unequal channels shows reversible nonlinear effects that can be manipulated to encode and decode signals.
- Microfluidic Bubble Logic
Logic gates are created by exploiting the nonlinear behavior of bubbles traveling in an otherwise linear microfluidic system.
- Chemical and Spectroscopic Evidence for an FeV-Oxo Complex
A high valent state of iron implicated in many enzymatic and environmental oxidations has been characterized in a stable compound at low temperature.
- Small Phytoplankton and Carbon Export from the Surface Ocean
Abundant picoplankton, thought to be too small to settle in the ocean, actually contribute to the flux of carbon to the depths in an amount proportional to their production.
- Integration of TGF-ß and Ras/MAPK Signaling Through p53 Phosphorylation
Two prominent signaling pathways important for cell growth and development intersect at a common tumor suppressor, p53.
- Structure of the Prefusion Form of the Vesicular Stomatitis Virus Glycoprotein G
Despite the reversibility of the process, the protein that fuses rabies-like viruses with cell membranes during infection undergoes a dramatic reorganization upon fusion.
- Relative Impact of Nucleotide and Copy Number Variation on Gene Expression Phenotypes
Variation in gene expression among humans is caused by differences in single nucleotides as well as in the number of copies of genes.
- Evidence That Focal Adhesion Complexes Power Bacterial Gliding Motility
Unexpectedly, bacteria can move as eukaryotes do, by adhering to the surface via transient adhesion sites that continually replenish at the forward end.
- Apoptosis Initiated When BH3 Ligands Engage Multiple Bcl-2 Homologs, Not Bax or Bak
Two cell death-related proteins need to be constantly inhibited by prosurvival proteins to prevent death by default in human cells.
- CPD Damage Recognition by Transcribing RNA Polymerase II
The damage induced in DNA by ultraviolet light causes transcribing polymerase to insert uridine, an abnormal nucleotide, halting progress and initiating DNA repair.
- Antennal Mechanosensors Mediate Flight Control in Moths
Moths' antennae detect rotational motion and relay this mechanosensory input to neural centers to maintain stability during flight.
Technical Comments
