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It has long been known that ice starts melting at temperatures far below its nominal freezing point, but why or how has remained enigmatic. An innovation in atomic force microscopy provides insights into how this process begins in the most abundant form of ice on Earth.
There are gaps in our understanding of how and why digital misinformation propagates. To help design effective interventions to minimize the spread of falsehoods, researchers need data and transparency from online platforms.
A description of the terminology and methodology used in this supplement, and a guide to the functionality that is available free online at natureindex.com.
Students are the key users of AI chatbots in university settings, but their opinions are rarely solicited when crafting policies. That needs to change, says Maja Zonjić.
Myelin is a fatty substance that forms an insulating sheath around the axons of neurons. In mice, drugs of abuse induce neuronal-activity-regulated changes in the myelination of neurons in the brain’s reward circuitry that release the neurotransmitter chemical dopamine. This myelin plasticity is required for the learning of reward associations with drugs of abuse, such as morphine.
A laser technique, which has a time resolution of only a few femtoseconds, captures how photoexcited electrons can influence the chirality — or handedness — of neutral molecules. The resulting helical currents could be used to control physical and chemical properties that result from chiral interactions. This technology could have applications in fields ranging from solid-state electronics to drug design.
Automated approaches to translation could provide a lifeline to under-resourced languages, but only if companies engage with the people who speak them.
JoAnn Trejo attributes her path to pharmacology to her immigrant family’s strong work ethic. Today, she uses recruitment and mentorship training to unlock the potential of other scientists from under-represented groups.
Using tissue from the developing fruit-fly wing, researchers show that a nucleus’s location in the cell determines how it experiences signals that regulate genes needed for proper wing formation.
Soft solids that swell with shifts in pressure, temperature and pH provide a way of detecting such changes in the fluid around the brain. The method could be used to determine other properties of fluids elsewhere in the body.