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A relaxation oscillator incorporating nanoscale niobium dioxide memristors that exhibit both a current- and a temperature-controlled negative differential resistance produces chaotic dynamics that aid biomimetic computing.
Maiopatagium, a haramiyid from the Jurassic Tiaojishan Formation (around 160 million years ago) of China was specialised for gliding with a patagium (wing membrane) and a fused wishbone, reminiscent of that of birds.
Decoy-state quantum key distribution from a satellite to a ground station is achieved with much greater efficiency than is possible over the same distance using optical fibres.
Taste-receptor cells use distinct semaphorins to guide wiring of the peripheral taste system; targeted ectopic expression of SEMA3A or SEMA7A leads to bitter neurons responding to sweet tastes or sweet neurons responding to bitter tastes.
Quantum teleportation of single-photon qubits from a ground observatory to a satellite in low-Earth orbit via an uplink channel is achieved with a fidelity that is well above the classical limit.
TUT4 and TUT7 mediate 3′ uridylation of mRNA transcripts, preferentially those with short poly(A) tails; in the absence of TUT4 and TUT7, oocytes cannot mature and female mice are infertile.
A detailed analysis of fly wing phenotypes reveals a strong positive relationship between variation produced by mutation, standing genetic variation, and evolutionary rate over the past 40 million years.
The fossil of a gliding mammal from the Tiaojishan Formation of China displays many unique features of its ears, teeth and tooth-replacement pattern, illustrating the great diversity of stem mammals living in the Jurassic period.
The authors assess the role of N6-methyladenosine in T cell development and function, and show that RNA methylation controls T cell homeostasis by regulating IL-7-mediated STAT5 activation.
Determination of the crystal structure of the zebrafish LPA6 receptor shows that the lipid ligand binds to an unusual ligand-binding pocket in the receptor that is laterally accessible through the membrane.
Morphological analysis of teeth found at Lida Ajer shows that these belong to Homo sapiens, indicating that modern humans were in Sumatra between 73,000 and 63,000 years ago.
The authors describe a two-cell-type CRISPR screen to identify tumour-intrinsic genes that regulate the sensitivity of cancer cells to effector T cell function.
Electronic nematicity is observed in a heavy-fermion superconductor, CeRhIn5, suggesting a close link between unconventional superconductivity and the appearance of nematicity.
Observations of the gas-giant exoplanet WASP-121b reveal near-infrared emission lines of water, suggesting that the planet has a stratosphere—a layer in the upper atmosphere where temperature increases with altitude.
The measurement of an alignment between the angular momentum of a non-central collision between heavy ions and the spin of emitted particles reveals that the fluid produced in the collision is extremely vortical.
A quantum simulation platform based on quantum dots is reported that can operate at relatively low temperatures, and its utility is shown by simulating a Fermi–Hubbard model.
An anthrax-causing agent, Bacillus cereus biovar anthracis, is a persistent and widespread cause of death for a broad range of mammalian hosts in a tropical rainforest, with important implications for the conservation of mammals such as chimpanzees.