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After cancelling nearly all NIH projects studying transgender health, Trump’s team instructs the US biomedical agency to study negative consequences of transitioning.
Smaller than a grain of rice, this injectable device could allow for minimally invasive heart-surgery — plus, research suggesting that a shingles vaccination reduces the risk of dementia.
A chiral copper catalyst, generated in situ from commercially available components, can be used to achieve photoinduced deracemization of alkyl halides through carbon–halogen bond cleavage.
Using a natural experiment that avoids common bias concerns, this study finds that the live-attenuated shingles vaccine reduced the probability of a new dementia diagnosis within a follow-up period of 7 years by approximately one-fifth.
A general reinforcement-learning algorithm, called Dreamer, outperforms specialized expert algorithms across diverse tasks by learning a model of the environment and improving its behaviour by imagining future scenarios.