In the past, increasing the speeds of electronics required designing smaller components, but further reductions in size are being hampered by increasing resistance. To get around this, researchers have demonstrated a ‘metadevice’, which prevents resistance building up by concentrating the flow of signals into specific regions of the device. The hope is that this meta-method could be used to create even smaller electrical components in the future.
Research article: Nikoo & Matioli
How waiting times for services are higher for people in the US with low incomes, and how your brain hears an alarm while you’re asleep.
Research Highlight: Who wastes more time waiting? Income plays a part
Research Highlight: Noise shatters deep sleep thanks to dedicated brain circuit
In the last ten years, levels of social media use and reported levels of mental health issues among adolescents have both increased. There is much concern that these trends are linked, but hard evidence has been hard to come by. So how can scientists get a better understanding of what’s going on? In a Comment article for Nature, researchers argue that, rather than lumping ‘young people’ into one homogeneous group, future studies should consider where they are in terms of their development, as this could influence the potential impacts of social media use.
Comment: How social media affects teen mental health: a missing link
We discuss some highlights from the Nature Briefing. This time, we discuss self-burying devices that can plant seeds in remote areas from the air, and scientists’ reactions to a talk by CRISPR-baby researcher He Jiankui.
Nature Video: This device corkscrews itself into the ground like a seed
Nature News: Disgraced CRISPR-baby scientist’s ‘publicity stunt’ frustrates researchers
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Alphafold 3.0: the AI protein predictor gets an upgrade
Talking about sex and gender doesn't need to be toxic
Dad's microbiome can affect offsprings' health — in mice
Audio long read: Why loneliness is bad for your health
How gliding marsupials got their 'wings'
Living on Mars would probably suck — here's why
Keys, wallet, phone: the neuroscience behind working memory
The 'ghost roads' driving tropical deforestation
Audio long read: Why are so many young people getting cancer? What the data say
Pregnancy's effect on 'biological' age, polite birds, and the carbon cost of home-grown veg
How climate change is affecting global timekeeping
AI hears hidden X factor in zebra finch love songs
Killer whales have menopause. Now scientists think they know why
These tiny fish combine electric pulses to probe the environment
Could this one-time ‘epigenetic’ treatment control cholesterol?
Audio long read: Chimpanzees are dying from our colds — these scientists are trying to save them
How whales sing without drowning, an anatomical mystery solved
Why are we nice? Altruism's origins are put to the test
Smoking changes your immune system, even years after quitting
Why we need to rethink how we talk about cancer
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