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Sunday, June 3, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News


For advanced prostate cancer, new drug slows disease

Posted: 02 Jun 2012 10:49 AM PDT

A new medication proved effective in slowing the spread of metastatic prostate cancer, while helping to maintain the quality of life, in patients with advanced disease. The Phase 3 study was unblinded midway, allowing patients receiving the placebo to instead take the drug because of the favorable results.

Where have all the hummingbirds gone?

Posted: 01 Jun 2012 08:17 PM PDT

The glacier lily as it's called, is a tall, willowy plant that graces mountain meadows throughout western North America. It flowers early in spring, when the first bumblebees and hummingbirds appear.

Northern Lights process like untangling twisted strands of spaghetti?

Posted: 01 Jun 2012 08:15 PM PDT

Scientists have reached a milestone in describing how the northern lights work by way of a process called "magnetic reconnection." The process is best imagined as untangling twisted strands of spaghetti.

Monkey lip smacks provide new insights into the evolution of human speech

Posted: 31 May 2012 10:56 AM PDT

Scientists have traditionally sought the evolutionary origins of human speech in primate vocalizations. But unlike these primate calls, human speech is produced using movements of the tongue, lips and jaw. Speech is also learned, while primate vocalizations are mostly innately structured. New research supports the idea that human speech evolved less from vocalizations than from communicative facial gestures.

Rewriting DNA to understand what it says

Posted: 31 May 2012 07:22 AM PDT

Our ability to "read" DNA has made tremendous progress in the past few decades, but the ability to understand and alter the genetic code, that is, to "rewrite" the DNA-encoded instructions, has lagged behind. A new study advances our understanding of the genetic code: It proposes a way of effectively introducing numerous carefully planned DNA segments into genomes of living cells and of testing the effects of these changes. New technology speeds up DNA "rewriting" and measures the effects of the changes in living cells.

Early exposure to microbes reduces inflammation related to chronic disease later

Posted: 30 May 2012 12:23 PM PDT

American parents may want to rethink how much they protect their children from everyday germs. A new study done in lowland Ecuador finds no evidence of chronic low-grade inflammation -- associated with diseases of aging like cardiovascular disease. In contrast, about one-third of adults in the U.S. have chronically elevated C-reactive protein. Acute elevations in CRP are important for protection against infectious disease. When chronically produced, CRP is associated with chronic diseases.

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