Infectious disease experts designed a machine called the hemopurifier. It works much like a dialysis machine, using thin fibers to capture and remove viruses from the blood it filters. The machine requires the drawing of blood through an artery, which is sent through a tube into the machine, then back into the body. It can treat a number of illnesses.

Every day, 14,000 people are infected with HIV, the virus that leads to AIDs. There’s no cure, but now a breakthrough — a machine that could clean blood, keeping more and more people alive longer.

“I remember lying in bed thinking, ‘I am going to die. I’m going to die. I feel so sick.’ And I remember thinking laying in that bed, ‘And I know exactly what it is,’” HIV patient John Paul Womble, told Ivanhoe. HIV could kill Womble. He watched his father die from the virus and now he is living the rest of his life with it. “I’ve got to live as healthy as I can, but this virus is not going to control me,” he says. Now, a machine could help clean Womble’s infected blood and keep him healthier, longer. Read more

Chemists adding a tasteless edible protein called gelatin hydrolysate to ice cream find that it keeps ice crystals small, resulting in a smoother, more pleasing product. The protein inhibits the growth of ice crystals, keeping them small and preserving the creamy texture of ice cream.

People in the U.S. eat more ice cream than any other country in the world. The average American consumes about 24 quarts of ice cream a year. But, if you buy a lot of ice cream, you know that freezer burn or ice crystals can ruin the flavor and creaminess of your favorite treat.

Whichever flavor you like best, ice cream is a favorite for kids of all ages. But when it comes to ice cream, ice isn’t such a good thing, especially when it forms on the inside of the container.

“Ice crystals when they grow they change the texture of ice cream, it gives you some gritty sensation in your mouth, and that is not very desirable,” Srinivasan Damodaran, Ph.D., food scientist at the University of Wisconsin, Madison, told Ivanhoe.
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ScienceDaily — Eight-year-old children have a radically different learning strategy from twelve-year-olds and adults. Eight-year-olds learn primarily from positive feedback (’Well done!’), whereas negative feedback (’Got it wrong this time’) scarcely causes any alarm bells to ring. Twelve-year-olds are better able to process negative feedback, and use it to learn from their mistakes. Adults do the same, but more efficiently.

Brain areas for cognitive control

The switch in learning strategy has been demonstrated in behavioural research, which shows that eight-year-olds respond disproportionately inaccurately to negative feedback. But the switch can also be seen in the brain, as developmental psychologist Dr Eveline Crone and her colleagues from the Leiden Brain and Cognition Lab discovered using fMRI research. The difference can be observed particularly in the areas of the brain responsible for cognitive control. These areas are located in the cerebral cortex. Read more