Contents
Vol 317, Issue 5835
Contents
This Week in Science
Editorial
Editors' Choice
Departments
Products & Materials
News of the Week
HIV/AIDS
ScienceScope
Random Samples
Newsmakers
News Focus
Letters
Books
Policy Forum
Perspectives
Brevia
- Extraordinary Flux in Sex Ratio
The sex ratio in a butterfly population shifted very rapidly from close to zero males to a 1-to-1 male-female ratio in only a few generations.
Research Article
- Prefrontal Regions Orchestrate Suppression of Emotional Memories via a Two-Phase Process
During normal suppression of emotional memories, the prefrontal cortex inhibits memory-related brain regions, a process that may go awry in certain psychiatric conditions.
Reports
- Scattering and Interference in Epitaxial Graphene
Scanning tunneling spectroscopy shows that electronically active defects in graphene sheets scatter electrons, leading to constructive interference.
- Efficient Tandem Polymer Solar Cells Fabricated by All-Solution Processing
A tandem solar cell, in which two cells are connected by a transparent conductor in order to use more of the solar spectrum, can be synthesized entirely from solution.
- Cleaving Mercury-Alkyl Bonds: A Functional Model for Mercury Detoxification by MerB
A ligand with three coordinating sulfur groups mimics a bacterial enzyme and cleaves toxic mercury compounds.
- Magmatic Gas Composition Reveals the Source Depth of Slug-Driven Strombolian Explosive Activity
Magmatic gas compositions show that a type of volcanic explosion is driven by gas rising up from several kilometers, deeper than suggested by the accompanying earthquakes.
- Remnants of the Early Solar System Water Enriched in Heavy Oxygen Isotopes
Material extremely enriched in the heavy isotopes of oxygen is abundant in the matrix of a primitive meteorite, identifying a distinct water reservoir in the early solar system.
- How Much More Rain Will Global Warming Bring?
Humidity and precipitation unexpectedly increased at the same rate in response to global warming during the past 20 years, yielding more rainfall than predicted by models.
- Food Web–Specific Biomagnification of Persistent Organic Pollutants
Some hazardous organic compounds that do not accumulate in fish or aquatic food webs do accumulate through food webs of air-breathing mammals.
- Mechanism of Two Classes of Cancer Mutations in the Phosphoinositide 3-Kinase Catalytic Subunit
Structural and functional studies suggest that mutations in two noncatalytic domains of an important kinase can cause cancer by releasing an inhibitor.
- Postreplicative Formation of Cohesion Is Required for Repair and Induced by a Single DNA Break
The close association of two sister chromatids can occur as a result of DNA damage and does not require simultaneous DNA replication, as previously thought.
- DNA Double-Strand Breaks Trigger Genome-Wide Sister-Chromatid Cohesion Through Eco1 (Ctf7)
The close association of two sister chromatids can occur as a result of DNA damage and does not require simultaneous DNA replication, as previously thought.
- Developmentally Regulated Activation of a SINE B2 Repeat as a Domain Boundary in Organogenesis
A repetitive DNA segment in the growth hormone gene is transcribed during pituitary development and establishes chromatin structure for activation of gene transcription.
- Combinatorial ShcA Docking Interactions Support Diversity in Tissue Morphogenesis
Distinct subsets of the available interaction domains of a scaffolding protein are recruited in muscle and heart to support tissue-specific developmental programs.
- Reciprocal TH17 and Regulatory T Cell Differentiation Mediated by Retinoic Acid
The decision to promote distinct immune cells, which either prevent or promote inflammation, is regulated by the vitamin A metabolite retinoic acid.
Technical Comments
