Asresu Gezahegn

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Learning a second language at any age may slow the brain's decline

Bilingual education in schools has long been a political hot potato -- it was banned in California by a 1998 ballot measure, which the state Senate is now asking voters to repeal. But politics aside, there's an increasing amount of scientific support for the benefits of knowing (at least) two …

Language Learning

Erasing and restoring our memories

Eric Niiler<p>Related Stories<p>Researchers implant false memories in mice, Science Online, 26 Jul 2013<br>• Scans reveal how we change memories, Science Online, …

Scientists Prime The Immune System As A Powerful Cancer Weapon

Watch out, cancer cells. Humanity is learning how to use our built-in weapon – our own white blood cells – to kill you.<p>Early results showing that genetically modified white blood cells, called T-cells, can make cancer cells disappear, at least temporarily, in 50% to 90% of patients with certain …

Genetic treatment using three-parent embryo may be ready in two years

A controversial technique involving three-parent embryos, designed to prevent incurable genetic diseases, could be ready within two years but unless the government changes the law, prospective parents will be prevented from using it, scientists say.<p>Mitochondrial disease afflicts around 100 babies …

New test predicts if breast cancer will spread

Overall, there was little agreement between the TMEM test and the IHC4 test regarding prediction of metastatic risk. As for assessing metastatic risk …

Bacteria-eating viruses found that fight C. diff 'superbugs'

<b>A potential new victory in the war against antibiotic-resistant "superbugs" lies in the discovery of specific viruses that eat bacteria - called</b> …

Morality pills: reality or science fiction?

Could we create a "morality pill"? Once the stuff of science fiction, recent studies in neuroscience have shown that brain chemicals can subtly influence some aspects of moral judgments and decisions. However, science is very far from creating pills that can turn sinners into saints, as I have …

Brain stimulation: The military’s mind-zapping project

Shocking the brain with mild electrical current was once a controversial treatment for the mentally ill. Now evidence is emerging that it could quicken learning and improve attention, and as Emma Young discovers, the US military is very interested in its potential.<p>An unusual trial is underway at …