Should a Facebook “Like” Be Protected Free Speech?

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One billion Facebook users generate 2.7 billion “likes” per day (or 1,875,000 every minute). Increasingly, social media has become a form of social and political engagement, and 47 percent of Facebook users have “liked” political cause-related comments. Protected free speech is a luxury the Western world has long enjoyed.

– National Communication Association|23-Oct-2014 2:00 PM EDT

Cutting the Ties That Bind

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The development of a new organism from the joining of two single cells is a carefully orchestrated endeavor. But even before sperm meets egg, an equally elaborate set of choreographed steps must occur to ensure successful sexual reproduction. Those steps, known as reproductive cell division or meiosis, split the original number of chromosomes in half so that offspring will inherit half their genetic material from one parent and half from the other.

– Stowers Institute for Medical Research|23-Oct-2014 2:00 PM EDT

Scripps Research Institute Chemists Achieve New Technique with Profound Implications for Drug Development

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A team from The Scripps Research Institute has established a new C-H activation technique that opens the door to creating a broader range of pure molecules of one-handedness or “chirality” by eliminating previous starting-material limitations.

– Scripps Research Institute|23-Oct-2014 2:00 PM EDT

New Microscope Collects Dynamic Images of the Molecules That Animate Life

A new imaging platform developed by Eric Betzig and colleagues at the Howard Hughes Medical Institute's Janelia Research Campus offers another leap forward for light microscopy. The new technology collects high-resolution images rapidly and minimizes damage to cells, meaning it can image the three-dimensional activity of molecules, cells, and embryos in fine detail over longer periods than was previously possible. Betzig was one of three scientists who shared the 2014 Nobel Prize in Chemistry earlier this month.

– Howard Hughes Medical Institute (HHMI)|23-Oct-2014 2:00 PM EDT

National Synchrotron Light Source II Achieves 'First Light'

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The National Synchrotron Light Source II detects its first photons, beginning a new phase of the facility’s operations. Scientific experiments at NSLS-II are expected to begin before the end of the year.

– Brookhaven National Laboratory|23-Oct-2014 1:00 PM EDT

Coping with Water Scarcity

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Southern California water agencies have turned to new pricing structures, expanded rebate programs and implemented other means to encourage their customers to reduce consumption. Some of those policies have greatly reduced per capita consumption, while others have produced mixed results.

– University of California, Riverside|23-Oct-2014 12:00 PM EDT

UT Southwestern Scientists Discover New Clues to How Weight Loss Is Regulated

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A hormone seen as a popular target to develop weight-loss drugs works by directly targeting the brain and triggering previously unknown activity in the nervous system, UT Southwestern Medical Center obesity researchers have found.

– UT Southwestern Medical Center|23-Oct-2014 12:00 PM EDT

Dartmouth Study Measures Breast Cancer Tumor Response to Neoadjuvant Chemotherapy

Study suggests it may be possible to use Diffuse Optical Spectroscopic Tomographic imaging (DOST) to predict which patients will best respond to chemotherapy used to shrink breast cancer tumors before surgery.

– Norris Cotton Cancer Center Dartmouth-Hitchcock Medical Center|23-Oct-2014 12:00 PM EDT
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