Contents
Vol 316, Issue 5831
Contents
This Week in Science
Editorial
Editors' Choice
Departments
Products & Materials
News of the Week
ScienceScope
Random Samples
Newsmakers
News Focus
Letters
Books
Policy Forum
Perspectives
Review
Brevia
- The Mass of Dwarf Planet Eris
Observations of the orbit of dwarf planet Eris' satellite Dysnomia indicates that Eris has a density similar to Pluto's, but is about 1.27 times as large.
Research Article
- The Release 5.1 Annotation of Drosophila melanogaster Heterochromatin
DNA near the centromeres of Drosophila chromosomes is repetitive and consists of transposons, tandem and satellite repeats, and over 200 coding and noncoding genes.
Reports
- Tracking Solar Gravity Modes: The Dynamics of the Solar Core
Satellite detection of deep buoyancy-driven oscillations within the Sun implies that the solar core is spinning faster than the surrounding radiative zone.
- Tuning the Quantum Stability and Superconductivity of Ultrathin Metal Alloys
Incorporating small amounts of bismuth into thin lead films adds extra electrons to the film, allowing control of its mechanical stability and superconducting behavior.
- Metal Chlorides in Ionic Liquid Solvents Convert Sugars to 5-Hydroxymethylfurfural
A chromium catalyst efficiently converts glucose, which can be obtained renewably, to a versatile intermediate feedstock usually derived from petroleum.
- Extracellular Proteins Limit the Dispersal of Biogenic Nanoparticles
Cysteine-rich proteins from sulfate-reducing bacteria help aggregate metal-containing nanoparticles, retarding their mobility in the environment.
- Origin of the Low Rigidity of the Earth's Inner Core
Molecular simulations suggest that crystal defects, rather than melting, may explain the low rigidity and shear wave velocities of the Earth's inner core.
- Frequent Long-Distance Plant Colonization in the Changing Arctic
Arctic islands have been colonized repeatedly by plant species from distant sources, suggesting that plant ranges can shift rapidly northward in response to global warming.
- Modulation of Neuronal Interactions Through Neuronal Synchronization
The interaction of two neuronal groups in the visual systems of cats and monkeys depends on the phase relation between their rhythmic activities.
- Neural Mechanisms of Visual Attention: How Top-Down Feedback Highlights Relevant Locations
As visual information flows from the retina to the cortex, feedback to neurons farther down the pathway increases activity in specific upstream areas to enable focused spatial attention.
- α-Klotho as a Regulator of Calcium Homeostasis
A protein with several reported functions may also influence calcium metabolism by modulating the abundance of the sodium-potassium pump at the plasma membrane.
- Wnt Induces LRP6 Signalosomes and Promotes Dishevelled-Dependent LRP6 Phosphorylation
Large, ribosome-sized protein complexes containing receptor and adapter proteins assemble at cell membranes to detect and transduce a critical developmental signal.
- Neural Responses to Taxation and Voluntary Giving Reveal Motives for Charitable Donations
Seeing one's taxes spent on public services is not as rewarding as paying for them oneself.
- Sequence Finishing and Mapping of Drosophila melanogaster Heterochromatin
DNA near the centromeres of Drosophila chromosomes is repetitive and consists of transposons, tandem and satellite repeats, and over 200 coding and noncoding genes.
- The Vaccine Adjuvant Monophosphoryl Lipid A as a TRIF-Biased Agonist of TLR4
A bacterial lipid that can be added to vaccines to boost effectiveness is less toxic than current versions, probably because it selectively stimulates only one immune pathway.
- Crystal Structures of Human MD-2 and Its Complex with Antiendotoxic Lipid IVa
The structure of a membrane protein bound to bacterial lipopolysaccharide reveals the first step in how the innate immune system senses the presence of invading bacteria.
Technical Comments
