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168,132 articles from ScienceDaily

Stem-cells Drug Testing Predicted To Boom Under Obama

Embryonic stem cells could provide a new way of testing drugs for dangerous side effects. Since researchers are able to make unlimited human heart cells from embryonic stem cells, they may offer a viable and scientifically exciting alternative. Barack Obama is an ardent supporter of stem cell...


WEDNESDAY 17. DECEMBER 2008


High Blood Pressure May Make It Difficult For The Elderly To Think Clearly

Adding another reason for people to watch their blood pressure, a new study shows that increased blood pressure in older adults is directly related to decreased cognitive functioning, particularly among seniors with already high blood pressure. This means that stressful situations may make it more difficult for some seniors to think...

Phoenix Site On Mars May Be In Dry Climate Cycle Phase

The Martian arctic soil that NASA's Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough to modify the chemistry, producing effects that persist through the colder times.

Seeing The Shape Of Material Around Black Holes For First Time

After culling the literature for observed black holes, astronomers looked at 245 active galactic nuclei to characterize the shape of material swirling around them. The result: active galactic nuclei look like donuts, funneling from a dark center. This observation should constrain theories about how the material around black holes is produced and eventually allow scientists to study black holes...

Alternative Splicing Proteins Prompt Heart Development

Just as the emotions it represents are dynamic, the heart's development requires dynamic shifts in proteins that prompt alternative spicing, a mechanism that allows a given gene to program the cell to make several proteins, according to a new article in the journal Proceedings of the National Academy of...

Genetic Signature Predicts Outcome Of Pediatric Liver Cancer

Scientists have identified a genetic signature that is remarkably effective at predicting the prognosis of an aggressive liver cancer in children. The research, published by Cell Press in the December issue of the journal Cancer Cell, may lead to better treatments for pediatric liver...

Girls Have Superior Sense Of Taste To Boys

The findings of the world's largest study so far on the ability of children and young people to taste and what they like have now been published. Findings include: girls have a better sense of taste than boys; every third child of school age prefers soft drinks which are not...