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• Combination therapy with experimental drug improves outlook for breast cancer patients
• "Resistance" to Low-Dose Aspirin Therapy Extremely Rare
• Deuterium from a quantum sieve
• Fire and Ice: Wildfires Darkening Greenland Snowpack, Increasing Melting
• NIST and Forest Service Create World’s First Hazard Scale for Wildland Fires
• Salamanders have huge genomes because they lose DNA slowly

Combination therapy with experimental drug improves outlook for breast cancer patients Posted: 05 Dec 2012 10:26 AM PST A combination therapy using an experimental new drug shows significant promise for women with a common type of breast cancer in which estrogen causes their tumors to grow, researchers with the Revlon/UCLA Women's Cancer Research Program at UCLA's Jonsson Comprehensive Cancer Center report.   read more

"Resistance" to Low-Dose Aspirin Therapy Extremely Rare Posted: 05 Dec 2012 10:22 AM PST Roughly one-fifth of Americans take low-dose aspirin every day for heart-healthy benefits. But, based on either urine or blood tests of how aspirin blocks the stickiness of platelets – blood cells that clump together in the first stages of forming harmful clots – up to one third of patients are deemed unlikely to benefit from daily use. Such patients are called “aspirin resistant.” Clots are the main cause of most heart attacks and strokes. read more

Deuterium from a quantum sieve Posted: 05 Dec 2012 10:16 AM PST In future it may be easier for chemists, biologists and physicists to obtain the ideal substance with which to clarify numerous research issues. For the first time, a team of scientists from the Max Planck Institute for Intelligent Systems in Stuttgart, Jacobs University Bremen and the University of Augsburg have been able to apply a new method to separate hydrogen and its heavier isotope deuterium more efficiently than before. To this effect, they use a metal-organic framework as a quantum sieve to separate the isotopes. read more

Fire and Ice: Wildfires Darkening Greenland Snowpack, Increasing Melting Posted: 05 Dec 2012 09:54 AM PST Satellite observations have revealed the first direct evidence of smoke from Arctic wildfires drifting over the Greenland ice sheet, tarnishing the ice with soot and making it more likely to melt under the sun. At the American Geophysical Union meeting this week, an Ohio State University researcher presented images from NASA’s Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite, which captured smoke from Arctic fires billowing out over Greenland during the summer of 2012. read more

NIST and Forest Service Create World’s First Hazard Scale for Wildland Fires Posted: 05 Dec 2012 08:36 AM PST Two federal agencies have teamed to create the first-ever system for linking accurate assessments of risk from wildland fires to improved building codes, standards and practices that will help communities better resist the threat. The proposed Wildland Urban Interface (WUI) Hazard Scale addresses fires that occur where developed and undeveloped areas meet, and is described in a report released today by the U.S. Department of Commerce's National Institute of Standards and Technology (NIST) in collaboration with the U.S. Department of Agriculture's U.S. Forest Service (USFS). read more

Salamanders have huge genomes because they lose DNA slowly Posted: 05 Dec 2012 07:54 AM PST Why do salamanders have among the largest genome sizes? The huge genome sizes of salamanders reflect how their genomes have evolved over time. New research suggests that slow DNA loss, over long evolutionary timescales, contributes to genomic gigantism in salamanders. read more

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