Data In each country, we have two waves of data: baseline and endline. In Nepal, we conducted a baseline survey with a random 50% of the sample, and in Kenya, we relied on administrative data instead of baseline survey data. The endline surveys took approximately 30 min to administer and included approximately 20 questions. These questions
The most formidable barrier in medicine is the one that separates the brain from the bloodstream. Some small, simple chemical compounds such as paracetamol can cross the blood–brain barrier, but for larger molecules, such as proteins and messenger RNA, it is completely impermeable. There is a good reason for this — toxins and pathogens swimming
In 2025, researchers used protein analysis to show that a jawbone recovered from ocean sediments off the coast of Taiwan belonged to a Denisovan.Credit: Yousuke Kaifu An abandoned quarry in southwestern China has given scientists a portal into the Stone Age. The site’s trove of fossils and artefacts provides an unprecedented glimpse into the lives
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