Contents
December 2020
Vol 6, Issue 51
Vol 6, Issue 51
Research Articles
- A coating from nature
Biomass-derived butenolides are presented as green alternatives for acrylates in coatings with tunable properties.
- Spatiotemporal cellular movement and fate decisions during first pharyngeal arch morphogenesis
Cranial neural crest cells undergo directional cellular movement and binary fate restrictions during mandibular morphogenesis.
- The nuclear DICER–circular RNA complex drives the deregulation of the glioblastoma cell microRNAome
A novel circRNA withholds the microRNA assembly line by arresting the manufacturing foreman in the nucleus of a cancer cell.
- Intraplate volcanism triggered by bursts in slab flux
Slab flux drives the frequency of volcanic eruptions by stimulating an enriched reservoir in the mantle transition zone.
- Modeling the breakup of tabular icebergs
New model of giant Antarctic icebergs produces simulations that match satellite observations, with implications for climate.
- External oxidant-compatible phosphorus(III)-directed site-selective C–H carbonylation
Pd-catalyzed C7-selective C–H carbonylation of indoles with CO using BQ, a key external oxidant, is demonstrated.
- Chemical anti-corrosion strategy for stable inverted perovskite solar cells
Chemical anticorrosion of metal electrode with benzotriazole inhibitor enhances the stability of perovskite solar cells.
- Self-assembly–based posttranslational protein oscillators
Mathematical models for two experimentally realizable posttranslational protein oscillators are constructed.
- From code to market: Network of developers and correlated returns of cryptocurrencies
The collaborative nature of code development affects trading of cryptocurrencies, showing that transparency is a network property.
- Light-dependent photoreceptor orientation in mouse retina
The pupil-aligned orientation of retinal photoreceptors is dynamically phototropic, but different between outer and inner segment.
- De novo synthesis and salvage pathway coordinately regulate polyamine homeostasis and determine T cell proliferation and function
Polyamine homeostasis determines T cell function.
- Metasurface enabled quantum edge detection
Remotely switchable edge imaging is demonstrated on the basis of the metasurface illuminated by polarization-entangled photons.
- Femtosecond quantification of void evolution during rapid material failure
Ultrabright x-rays capture the sequence of material damage accumulation during high strain rate catastrophic failure.
- An ultrahigh-resolution soft x-ray microscope for quantitative analysis of chemically heterogeneous nanomaterials
A novel ultrahigh-resolution x-ray microscope achieves 8-nm spatial resolution and accurately maps chemistry in nanomaterials.
- Reduced tropical cyclone densities and ocean effects due to anthropogenic greenhouse warming
Climate model simulates future weakening of summer Hadley cells and decrease in tropical cyclone densities and ocean impacts.
- Virus detection using nanoparticles and deep neural network–enabled smartphone system
A virus detection method using deep learning–based analysis of smartphone-recorded microchip images without any optical hardware.
- S-adenosyl-l-homocysteine hydrolase links methionine metabolism to the circadian clock and chromatin remodeling
The S-adenosylhomocysteine (SAH) hydrolyzing enzyme AHCY functionally links the circadian clock to methionine metabolism.
- Lamellar cells in Pacinian and Meissner corpuscles are touch sensors
Tactile corpuscles in vertebrate skin use both neuronal and non-neuronal mechanoreception to detect mechanical signals.
- Rewritable color nanoprints in antimony trisulfide films
Large refractive index changes in Sb2S3 phase-change material promise nonvolatile ultrathin displays.
- The structure and global distribution of the endoplasmic reticulum network are actively regulated by lysosomes
Lysosomes, important centers of metabolic sensing and material recycling, play a key role in the dynamic reshaping of the ER.
- An activity-dependent local transport regulation via degradation and synthesis of KIF17 underlying cognitive flexibility
Neuronal activity–dependent dampening and regeneration of dendritic KIF17 transport underlie cognitive flexibility.
- Organic monolayers disrupt plastic flow in metals
Adsorbed monomolecular organic films are shown to embrittle ductile metals via an induced surface stress.
- Ultrafast solid-liquid intercalation enabled by targeted microwave energy delivery
Mechanism of targeted microwave energy transfer drives solid-liquid intercalation to completion in minutes.
About The Cover
ONLINE COVER Large tabular icebergs ("tabletop" icebergs with steeps sides and a broad, flat surface) that calve off of Antarctica's ice shelves contribute nearly half of the freshwater flux from the Antarctic Ice Sheet into the Southern Ocean. However, since their breakups have proven difficult to simulate, these large Antarctic icebergs have not been well represented in models—they are typically either omitted or represented as surviving longer and travelling farther than observations suggest they do in real life. To overcome this modelling challenge, England et al. developed a representation of iceberg fracturing using a breakup scheme based on the "footloose mechanism." They optimized its parameters by forcing the iceberg model with an ocean state estimate and comparing the modeled iceberg trajectories and areas with the Antarctic Iceberg Tracking Database. This breakup scheme dramatically improved large iceberg simulations, and the researchers found that including a representation of their breakup substantially altered the distribution of iceberg meltwater in the Southern Ocean described by models. The findings demonstrate the critical importance of including large icebergs in climate models. [CREDIT: TUI DE ROY/MINDEN]
