Archive: 02/12/2012

Scientists discover master regulator of skin development

The surface of your skin, called the epidermis, is a complex mixture of many different cell types—each with a very specific job. The production, or differentiation, of such a sophisticated tissue requires an immense amount ...

Stigma for Central America's HIV-positive kids

Four-year-old Carlos, who makes a lengthy trip every two weeks with his teenage aunt to a special clinic in El Salvador's capital, has no notion of the cruel stigma that comes with his HIV diagnosis.

S.Africa marks AIDS day with record ribbon

South Africa, home to the world's largest HIV caseload, on Saturday unveiled a 1.5 kilometre AIDS ribbon in Johannesburg, with activists and officials pledging to curb the epidemic.

Asperger's dropped from revised diagnosis manual

The now familiar term "Asperger's disorder" is being dropped. And abnormally bad and frequent temper tantrums will be given a scientific-sounding diagnosis called DMDD. But "dyslexia" and other learning disorders remain.

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