Forty-two million people worldwide are infected with HIV, and the vast majority of them live in the developing world, with little access to sophisticated labs that can monitor their immune-cell levels-measurements critical to determining their need for and response to drugs. Researchers from the University of Texas at Austin and Boston’s Massachusetts General Hospital are developing a portable immune-cell reader to fill this gap. At the heart of the device is a microchip that filters white blood cells out of a few drops of blood and stains the key ones red, green, and yellow. A digital camera then takes a picture of the cells, which software analyzes to determine the counts of each cell type, indicating how well the immune system is holding up. Though the current prototype is the size of a desktop computer, the researchers aim to produce a handheld version within the year. Ultimately, they hope each test will cost less than $3, compared to the $35 to $60 charged by conventional labs. Early trials of the system conducted in Boston and Botswana have been encouraging. The researchers say testers in Botswana liked the prototype so much they didn’t want to send it back.
Geoffrey Hinton tells us why he’s now scared of the tech he helped build
“I have suddenly switched my views on whether these things are going to be more intelligent than us.”
ChatGPT is going to change education, not destroy it
The narrative around cheating students doesn’t tell the whole story. Meet the teachers who think generative AI could actually make learning better.
Meet the people who use Notion to plan their whole lives
The workplace tool’s appeal extends far beyond organizing work projects. Many users find it’s just as useful for managing their free time.
Learning to code isn’t enough
Historically, learn-to-code efforts have provided opportunities for the few, but new efforts are aiming to be inclusive.
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