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Experiments in cerebral organoids show that sex hormones have a role in regulating the number of excitatory neurons in the human neocortex, providing insight into the mechanistic basis of sex-related brain differences in humans.
A certified efficiency of 26.4% in all-perovskite tandem solar cells, exceeding that of the best-performing single-junction perovskite solar cells, is achieved by control over surface defects in the Pb–Sn subcell.
‘Cooperative redox enhancement (CORE) effects, which arise through the coupling of oxidative dehydrogenation and oxygen reduction reactions, can lead to increased rates of reaction over spatially separated bimetallic heterogeneous catalysts.
Three-dimensional analysis of the solar neighbourhood shows that nearly all star-forming regions near the Sun lie on the surface of the Local Bubble, which was inflated by supernovae about 14 million years ago.
Strange metallicity—in particular, resistance that is linear in temperature and magnetic field—is observed in a nanopatterned YBa2Cu3O7−δ bosonic system.
An elastomeric solid-state electrolyte shows desirable mechanical properties and high electrochemical stability, and is used to demonstrate a high-energy solid-state lithium battery at ambient temperature.
Observations of the supernova SN 2019hgp, identified about a day after its explosion, show that it occurred within a nebula of carbon, oxygen and neon, and was probably the explosion of a massive WC/WO star.
Simultaneous recordings from hundreds of grid cells in rats, combined with topological data analysis, show that network activity in grid cells resides on a toroidal manifold that is invariant across environments and brain states.
Geochemical analyses correlating the stratum that overlies the sediments containing the Omo fossils with material from a volcanic eruption suggest that these fossils (the oldest known modern human fossils in eastern Africa) are over 200,000 years old.
Different racial/ethnic populations and income groups are found to have been exposed to different levels of air pollution in the USA during the years 2000 to 2016.
Data on de novo mutations in Arabidopsis thaliana reveal that mutations do not occur randomly; instead, epigenome-associated mutation bias reduces the occurrence of deleterious mutations.
A crossbar array of magnetic memory to execute analogue in-memory computing has been developed, and performs image classification and facial detection at low power.
A global assessment shows that increases in the number of wet days and extreme daily rainfall adversely affect economic growth, particularly in high-income nations and via the services and manufacturing sectors.
A chromatin accessibility atlas of 240,919 cells in the adult and developing Drosophila brain reveals 95,000 enhancers, which are integrated in cell-type specific enhancer gene regulatory networks and decoded into combinations of functional transcription factor binding sites using deep learning.
An analysis of Zeeman measurements reveals that the reduction of magnetic flux relative to mass, which is necessary for star formation, seems to have occurred earlier than previously thought.
Cryo-electron microscopy structures of DNA-dependent protein kinase catalytic subunit bound to ATPγS and four inhibitors (wortmannin, NU7441, AZD7648 and M3814) provide molecular details and insights useful for drug design.
Methicillin-resistant strains of Staphylococcus aureus appeared in European hedgehogs in the pre-antibiotic era as a co-evolutionary adaptation to antibiotic-producing dermatophytes and have spread within the local hedgehog populations and between hedgehogs and secondary hosts.
X-ray diffraction experiments indicate that the depression of the Earth’s 660-kilometre seismic discontinuity beneath cold subduction zones is caused by a phase transition from akimotoite to bridgmanite, leading to slab stagnation.
