Massachusetts Senator Edward Kennedy, the brother of assassinated president John F Kennedy and the elder statesman of American liberal politics, has a malignant brain tumour, his doctors said on Tuesday. Kennedy (76) who has been hospitalised in Boston since he had a seizure on Saturday, will likely need chemotherapy and radiation therapy to treat the glioma.
By crushing a widely used semiconductor into nanoparticles, researchers said this week they have created a compound that could lead to cleaner, more efficient refrigerators, solar power plants and other devices. The crushed material makes it possible to conduct electricity without conducting so much heat, solving a problem that has baffled engineers for 50 years.
Overeating disrupts entire networks of genes in the body, causing not only obesity, but diabetes and heart disease, in ways that may be possible to predict, researchers reported on Sunday. The researchers developed a new method of analysing DNA and used it to discover that obesity is not only complex, but complex in ways that had not been previously understood.