Contents
Vol 318, Issue 5856
Special Issue
Hinode
Introduction to special issue
Perspective
Reports
Contents
This Week in Science
Editorial
Editors' Choice
Departments
Products & Materials
News of the Week
ScienceScope
Random Samples
Newsmakers
News Focus
Letters
Books
Essays on Science and Society
Policy Forum
Perspectives
Review
Brevia
- Economics of Overexploitation Revisited
Profits from fisheries are maximized at population sizes larger than those that produce a sustainable yield, suggesting a way to counter industry opposition to lower harvests.
Research Articles
- Saturn's Small Inner Satellites: Clues to Their Origins
Cassini data on the shape and density of Saturn’s small inner moons imply that they grew by accreting dust from the rings and are not simply collision fragments as previously believed.
- Structure of a Site-2 Protease Family Intramembrane Metalloprotease
Open and closed structures of an intramembrane protease reveal that it has six segments spanning the membrane and that its zinc active site is accessible only when it is open.
Reports
- A Cosmic Microwave Background Feature Consistent with a Cosmic Texture
An unusual cold spot in the cosmic microwave background has properties expected of a cosmic texture, a predicted relic of the decoupling of photons and atoms just after the Big Bang.
- Modeling the Localized-to-Itinerant Electronic Transition in the Heavy Fermion System CeIrIn5
First-principles calculations successfully describe electronic transitions in a heavy fermion compound whose electrons behave as if they have a much heavier mass.
- Designing Superoleophobic Surfaces
A low-surface-energy material roughened to have hoodoo-like structures can repel even oily organic liquids such as decane and octane despite their extremely low surface tensions.
- The Equatorial Ridges of Pan and Atlas: Terminal Accretionary Ornaments?
Simulations imply that the early accretion of ring material onto two of Saturn’s moons, Pan and Atlas, can explain their flying-saucer shape.
- Stabilizing Isopeptide Bonds Revealed in Gram-Positive Bacterial Pilus Structure
The protein pilin contains stabilizing intramolecular lysine-asparagine bonds that help strengthen the hairlike pili used by Gram-positive bacteria to adhere to their host.
- A Deubiquitinase That Regulates Type I Interferon Production
Interferon secretion in response to viral infection is reduced by an enzyme that removes ubiquitin chains from proteins, an effect that could inhibit autoimmune disease.
- Sensing X Chromosome Pairs Before X Inactivation via a Novel X-Pairing Region of the Xic
Chromosome contact, the first step of X chromosome inactivation in females, is controlled by a 200-kilobase element upstream of the interaction region.
- Orchestration of the DNA-Damage Response by the RNF8 Ubiquitin Ligase
A key ubiquitin ligase builds polyubiquitin chains at radiation-caused DNA lesions, which subsequently recruit other factors necessary for repair.
- Engineering Modified Bt Toxins to Counter Insect Resistance
Bt toxin, a natural insecticide engineered into plants, can be modified to overcome insect resistance by forming damaging pores in pests independently of its normal receptor.
- Genetically Determined Differences in Learning from Errors
A gene variant that leads to fewer dopamine receptors also prevents people from learning from their mistakes and inhibits feedback to a brain area that registers bad outcomes.
- Ketamine-Induced Loss of Phenotype of Fast-Spiking Interneurons Is Mediated by NADPH-Oxidase
A psychosis-inducing drug activates a brain inflammatory enzyme system that produces superoxide, which decreases activity in certain GABA-containing interneurons.
Technical Comments
