Ultra-hard material to rival diamond discovered

Scientists have solved a decades-long puzzle and unveiled a near unbreakable substance that could rival diamond, as the hardest material on earth, a study says. Researchers found that when carbon and nitrogen precursors were subjected to extreme heat a…

What happens in the brain while daydreaming?

During quiet waking, brain activity in mice suggests the animals are daydreaming about a recent image. Having daydreams about a recently viewed image predicted how the brain would respond to the image in the future. The findings provide a clue that day…

The pedigree of brain cells

The superior colliculus in the mammalian brain takes on many important tasks by making sense of our environment. Any mistakes during the development of this brain region can lead to severe neurological disorders. Scientists have now delineated the pedi…

How stress activates neurons that disrupt sleep

New research reveals that neurons in the preoptic hypothalamus — the region of the brain that regulates sleep and body temperature — are rhythmically activated during non-rapid eye movement sleep (NREM). Stress activates these brain cells out of turn…

Can AI be too good to use?

Much of the discussion around implementing artificial intelligence systems focuses on whether an AI application is ‘trustworthy’: Does it produce useful, reliable results, free of bias, while ensuring data privacy? But a new article poses a different q…