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A chip-scale platform is developed for the conversion of a single microwave excitation of a superconducting qubit into optical photons, with potential uses in quantum computer networks.
A reinforcement-learning algorithm that combines a tree-based search with a learned model achieves superhuman performance in high-performance planning and visually complex domains, without any knowledge of their underlying dynamics.
By combining the use of photoswitchable photoinitators and intersecting light beams, objects and complex systems can be produced rapidly with higher definition than is possible using state-of-the art macroscopic volumetric methods.
Expression of the Epstein–Barr virus protein LMP1 in B cells increases expression of—and promotes T cell responses to—tumour-associated antigens, delineating a mechanism of infection-induced anti-tumour immunity, which could inform immune-based approaches to cancer treatment.
Topological plasmonic spin textures are excited by shining light on a structured silver film, and imaging defines how these quasiparticle field and spin textures evolve on the nanometre and femtosecond scales.
Rats learning to solve a succession of odour-sequence problems developed an orbitofrontal cortical representation that reflected the structure—or schema—common across problems.
In real-world spatial navigation and observation tasks, oscillatory activity in the human brain encodes representations of self and others, with oscillatory power increasing at locations near the boundaries of the room.
RANK promotes the hormone-mediated development of thymic regulatory T cells during pregnancy; loss of RANK is associated with impaired maturation of maternal regulatory T cells, leading to fetal loss and the development of gestational diabetes.
Most SARS-CoV-2 infections are undocumented. French health-care records and modelling were used to assess the rate of documentation of COVID-19 cases. The findings highlight the need for improved identification of infections.
Analyses of virological and surveillance data in France show that a substantial proportion of symptomatic cases of COVID-19 have remained undetected and that easily accessible and efficient testing is required to control the pandemic.