Contents
24 November 2017
Vol 358, Issue 6366
Vol 358, Issue 6366
Contents
This Week in Science
Editorial
Editors' Choice
Products & Materials
- New Products
A weekly roundup of information on newly offered instrumentation, apparatus, and laboratory materials of potential interest to researchers.
In Brief
In Depth
- Battle over drilling in Arctic refuge reignites
North America's largest and healthiest caribou herd could be at risk, conservationists fear.
- GM banana shows promise against deadly fungus strain
Consumer distrust could slip up disease-resistant variety.
- Congress offers defense scientists a bigger payday
Legislation boosts royalties that scientists at military laboratories can get from their patented inventions.
- An earthly search for gold's cosmic origins
Budding factory for heavy nuclei gets boost from discovery of neutron star merger.
- Do bacteriophage guests protect human health?
Bacteria-killing viruses are taken up by human epithelial cells, among the hints that they have a role within our body.
- Survey of archaea in the body reveals other microbial guests
Methane producers in the gut may contribute to disease.
Feature
- Tougher than hell
Transistors that thrive on heat and pressure could take spacecraft to the surface of Venus.
Working Life
Letters
Books et al.
- Common grounds
A wide-ranging natural history illuminates the pleasures and the plight of wild coffee
Policy Forum
- Valuing water for sustainable development
Measurement and governance must advance together
Perspectives
- Why do Earth's equatorial waves head east?
Topological effects may direct ocean and atmospheric waves near the equator
- Editing peptide presentation to T cells
Structures reveal how high-affinity peptides are presented to induce immune responses
- Viruses hijack a host lncRNA to replicate
Viruses induce a host lncRNA to rewire cellular metabolism to promote their replication
- As the extension, so the twist
Artificial internal structures blur the boundary between materials and machines
- Enhancing the RNA engineering toolkit
The CRISPR-Cas13 system can be used to engineer RNA
- The way forward for vector control
Pesticide resistance must be countered to control insects that serve as disease vectors
- Channelrhodopsin reveals its dark secrets
A high-resolution structure of channelrhodopsin 2 provides key insights for optogenetics
- Quantum interference beyond the fringe
The discovery 30 years ago of the interference of pairs of photons signaled the onset of an era for quantum optics
Association Affairs
- AAAS champions women in science at international events
Diverse participation maximizes benefits of innovation, speakers say
Research Articles
- Structural insights into ion conduction by channelrhodopsin 2
Channelrhodopsin has an intricate hydrogen-bonding network that is perturbed by light activation, resulting in channel opening.
- RNA editing with CRISPR-Cas13
An RNA-editing technology is developed to efficiently and specifically deplete and correct RNA directly in mammalian cells.
- Molecular and cellular reorganization of neural circuits in the human lineage
Comparing transcriptome and histology of human and nonhuman primate brains reveals changes that make humans unique.
- Structure-property relationships from universal signatures of plasticity in disordered solids
A range of particle-based and glassy systems show universal features of the onset of plasticity and a universal yield strain.
Reports
- Ten-month-old infants infer the value of goals from the costs of actions
Infants can assess how worthwhile or valuable an object or goal may be from others’ behaviors in achieving or acquiring it.
- The fundamental advantages of temporal networks
In control networks, when links between nodes are not permanent, there are benefits to the system.
- Major role of nitrite-oxidizing bacteria in dark ocean carbon fixation
Obligate chemoautotrophic Nitrospinae bacteria make a major contribution to mesopelagic inorganic carbon fixation.
- An interferon-independent lncRNA promotes viral replication by modulating cellular metabolism
A virus-induced cytoplasmic long noncoding RNA enhances viral replication by regulating a host cell metabolic enzyme.
- Architecture of eukaryotic mRNA 3′-end processing machinery
Cryo–electron microscopy, mass spectrometry, and biochemical reconstitutions elucidate the modular nature of the mRNA 3′-end processing machinery.
- Structure of the TAPBPR–MHC I complex defines the mechanism of peptide loading and editing
Two different approaches yield complimentary structures of TAPBR in complex with MHC I.
- Crystal structure of a TAPBPR–MHC I complex reveals the mechanism of peptide editing in antigen presentation
Two different approaches yield complimentary structures of TAPBR in complex with MHC I.
- Control of zeolite framework flexibility and pore topology for separation of ethane and ethylene
A pure silica zeolite has small, flexible pores that preferentially adsorb ethylene over ethane.
- Three-dimensional mechanical metamaterials with a twist
A mechanical metamaterial is designed to twist in response to being pushed or pulled.
- Topological origin of equatorial waves
Equatorially trapped Kelvin and Yanai waves have a topological origin.
- Creation of a Bose-condensed gas of 87Rb by laser cooling
Iterative manipulation of an optical lattice makes a gas of 87Rb atoms denser, leading to quantum degeneracy.
- Double-trap measurement of the proton magnetic moment at 0.3 parts per billion precision
An optimized double–Penning trap technique improves the precision measurement of the proton magnetic moment by a factor of 11.
- Current-induced strong diamagnetism in the Mott insulator Ca2RuO4
Electrical current is used as an experimental knob for controlling the properties of a Mott insulator.
Technical Comments
From the AAAS Office of Publishing and Member Services
About The Cover
COVER Illustration of a 3D chiral elastic metamaterial that is being compressed from above, causing the material to twist (along with the usual axial compression and lateral stretching or expansion). The darkest orange area denotes the highest degree of deflection. The twist motions, forbidden in ordinary elastic continua, aid the design of complex mechanical architectures. See pages 994 and 1072.
Illustration: C. Bickel/Science
