Nature News
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![[:es]Human ‘mini-brains’ implanted in rats prompt excitement — and concern[:]](https://katedra.eus/app/uploads/2022/06/png-3-7.png)
[:es]Human ‘mini-brains’ implanted in rats prompt excitement — and concern[:]
Rat–human hybrid brains offer new ways to study human neuro disorders, but also raise ethical questions.
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![[:es]DeepMind AI invents faster algorithms to solve tough maths puzzles[:]](https://katedra.eus/app/uploads/2022/05/png-3-3.png)
[:es]DeepMind AI invents faster algorithms to solve tough maths puzzles[:]
Machine-learning technique improves computing efficiency and could have far-reaching applications.
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[:es]DeepMind AI invents faster algorithms to solve tough maths puzzles[:]
Machine-learning technique improves computing efficiency and could have far-reaching applications.
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![[:es]Alzheimer’s drug slows mental decline in trial — but is it a breakthrough?[:]](https://katedra.eus/app/uploads/2022/06/png-2-21.png)
[:es]Alzheimer’s drug slows mental decline in trial — but is it a breakthrough?[:]
Researchers are cautiously optimistic following companies’ announcement of positive results for lecanemab.
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![[:es]The controversial embryo tests that promise a better baby[:]](https://katedra.eus/app/uploads/2022/06/png-1-16.png)
[:es]The controversial embryo tests that promise a better baby[:]
Some companies offer tests that rank embryos based on their risk of developing complex diseases such as schizophrenia or heart disease. Are they accurate — or ethical?
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[:es]The controversial embryo tests that promise a better baby[:]
Some companies offer tests that rank embryos based on their risk of developing complex diseases such as schizophrenia or heart disease. Are they accurate — or ethical?
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![[:es]NASA’s Mars rover makes ‘fantastic’ find in search for past life[:]](https://katedra.eus/app/uploads/2022/06/png-3-14.png)
[:es]NASA’s Mars rover makes ‘fantastic’ find in search for past life[:]
Perseverance has collected four rock samples from an ancient river delta where organisms might have thrived.
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![[:es]Why are people grieving for a queen they never met?[:]](https://katedra.eus/app/uploads/2021/07/png-1-9.png)
[:es]Why are people grieving for a queen they never met?[:]
Most of the people mourning the death of Queen Elizabeth II were not close to her — research can shed light on the nature of their grief.
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![[:es]How nasal-spray vaccines could change the pandemic[:]](https://katedra.eus/app/uploads/2020/04/PNG-2-4.png)
[:es]How nasal-spray vaccines could change the pandemic[:]
Vaccines inhaled through the mouth or nose might stop the coronavirus in its tracks, although there’s little evidence from human trials so far.