Κυριακή 28 Οκτωβρίου 2012

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Sandy to erode many Atlantic beaches

Posted: 27 Oct 2012 01:40 PM PDT

Nearly three quarters of the coast along the Delmarva Peninsula is very likely to experience beach and dune erosion as Hurricane Sandy makes landfall, while overwash is expected along nearly half of the shoreline.

USGS storm-surge sensors deployed ahead of Tropical Storm Sandy

Posted: 27 Oct 2012 01:39 PM PDT

Storm response crews from the U.S. Geological Survey are installing more than 150 storm-tide sensors at key locations along the Atlantic Coast -- from the Chesapeake Bay to Massachusetts -- in advance of the arrival of Tropical Storm Sandy.

Hubble sees violent star formation episodes in dwarf galaxies

Posted: 27 Oct 2012 09:09 AM PDT

The NASA/ESA Hubble Space Telescope has imaged the faint irregular galaxy NGC 3738, a starburst galaxy. The galaxy is in the midst of a violent episode of star formation, during which it is converting reservoirs of hydrogen gas located in the galaxy's center into stars. Hubble spots this gas glowing red around NGC 3738, one of the most distinctive signs of ongoing star formation.

NASA satellites see Sandy become a hurricane again and strong winds expand

Posted: 27 Oct 2012 09:05 AM PDT

Sandy weakened to a Tropical Storm and strengthened back into a hurricane early on Saturday (Oct. 27), and its pressure was dropping, meaning that the storm is intensifying as it becomes an extra-tropical storm. NASA's TRMM satellite identified heavy rain falling within the system and NOAA's GOES satellites provided a picture of Sandy's massive size.

Identifying at-risk patients for adverse smoking outcomes: Models developed from cancer screening trial may help

Posted: 26 Oct 2012 02:30 PM PDT

Risk prediction models developed from an ancillary study of the Prostate Lung Colorectal and Ovarian Cancer Screening Trial may be useful in the public health sector for identifying individuals who are at risk for adverse smoking outcomes, such as relapse among former smokers and continued smoking among current smokers, and those who may benefit from relapse prevention and smoking cessation interventions, according to a new study.

Inhaled anesthesia affects children's brains more than intravenous anesthetic, study shows

Posted: 26 Oct 2012 02:29 PM PDT

Researchers have found that children's brains are more affected by an inhaled anesthetic than an intravenous anesthetic with increased levels of brain lactate. Lactate increases brain activation and may lead to metabolic changes associated with anxiety and delirium. The findings provide new clues to metabolic changes within the brains of children undergoing anesthesia and could help researchers understand why general anesthesia may be potentially harmful to the developing brain.

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