ScienceDaily: Top News

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• Another vertebrate species reported extinct from the Hawaiian Islands
• Women spend longer in labor now than 50 years ago
• Tales from the crypt lead researchers to cancer discovery
• Preschoolers tend to have negative perceptions of overweight children
• Microprocessors from graphene
• Glycemic index foods at breakfast can control blood sugar throughout the day
• Menopause clinicians support new advice on steroid use
• Maintaining restraint in the face of danger
• Treating cancer as a chronic disease?
• Intelligence is more accurate predictor of future career success than socioeconomic background, study suggests
• Cost from ship-borne invasive species to the Great Lakes coud be as much as $800 million annually
• Scientists refine Earth's clock
• Growth around Yellowstone, Glacier and other national parks compared

Another vertebrate species reported extinct from the Hawaiian Islands Posted: 31 Mar 2012 06:59 AM PDT A species of lizard is now extinct from the Hawaiian Islands, making it the latest native vertebrate species to become extirpated from this tropical archipelago. The copper striped blue-tailed skink (Emoia impar) -- a sleek lizard with smooth, polished scales and a long, sky-blue tail -- was last confirmed in the Na'Pali coast of Kauai in the 1960s. But repeated field surveys on Kauai, Oahu, Maui and Hawai'i islands from 1988 to 2008 have yielded no sightings or specimens.

Women spend longer in labor now than 50 years ago Posted: 30 Mar 2012 01:48 PM PDT Women take longer to give birth today than did women 50 years ago, according to an analysis of nearly 140,000 deliveries. The researchers could not identify all of the factors that accounted for the increase, but concluded that the change is likely due to changes in delivery room practice.

Tales from the crypt lead researchers to cancer discovery Posted: 30 Mar 2012 09:32 AM PDT Tales from the crypt are supposed to be scary, but new research shows that crypts can be places of renewal too:  Intestinal crypts, that is. Intestinal crypts are small areas of the intestine where new cells are formed to continuously renew the digestive tract.  By focusing on one protein expressed in our intestines called Lrig1, the researchers have identified a special population of intestinal stem cells that respond to damage and help to prevent cancer.

Preschoolers tend to have negative perceptions of overweight children Posted: 30 Mar 2012 09:30 AM PDT A Canadian study has found that some preschoolers may perceive overweight children to be not as "nice".

Microprocessors from graphene Posted: 30 Mar 2012 08:10 AM PDT Graphene could become the next big thing in the quest for smaller, less power-hungry electronics. Physicists are making discoveries that may advance electronic circuit technology.

Glycemic index foods at breakfast can control blood sugar throughout the day Posted: 30 Mar 2012 08:02 AM PDT Eating foods at breakfast that have a low glycemic index may help prevent a spike in blood sugar throughout the morning and after the next meal of the day, researchers say.

Menopause clinicians support new advice on steroid use Posted: 30 Mar 2012 05:17 AM PDT Glucocorticoids - a type of steroid hormone - are widely used in a number of medical disorders. Worldwide, it is estimated that almost 5% of postmenopausal women take glucocorticoids. As well as having specific benefits, Glucocorticoids have side effects. One of the potentially most important is that glucocorticoid use is associated with bone loss, which is most rapid in the first 3-6 months of treatment, potentially leading to serious complications and osteoporosis in many postmenopausal women.

Maintaining restraint in the face of danger Posted: 30 Mar 2012 05:12 AM PDT A central regulator of the inflammatory response shows signs as an appealing target for therapies against autoimmune disease.

Treating cancer as a chronic disease? Posted: 29 Mar 2012 02:02 PM PDT New research could someday lead to treatments that transform cancer from a lethal disease to a chronic, manageable one, similar to AIDS.

Intelligence is more accurate predictor of future career success than socioeconomic background, study suggests Posted: 29 Mar 2012 11:20 AM PDT When intelligence and socioeconomic background are pitted directly against one another, intelligence is a more accurate predictor of future career success, researchers have found.

Cost from ship-borne invasive species to the Great Lakes coud be as much as $800 million annually Posted: 29 Mar 2012 11:19 AM PDT A new article assigns a dollar figure on the cost to the Great Lakes from invasive species that originate in the ballast water of ocean-going vessels.

Scientists refine Earth's clock Posted: 29 Mar 2012 11:19 AM PDT New research has revealed that some events in Earth's history happened more recently than previously thought. Scientists have refined the data used to determine how much time has passed since a mineral or rock was formed. They report uranium isotopic composition of minerals, used to date major geological events, which are more accurate than previously published.

Growth around Yellowstone, Glacier and other national parks compared Posted: 29 Mar 2012 09:47 AM PDT The land around Yellowstone and Glacier national parks might look like it's filling up with people and houses, but it's nothing compared to the rate of development around some other US national parks, according to a new study.

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