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Thu, 16 Apr 2015 19:27:45 EDT
New genomics tool could help predict tumor aggressiveness, treatment outcomes
A new method for measuring genetic variability within a tumor might one day help doctors identify patients with aggressive cancers that are more likely to resist therapy, according to a study. Researchers used a new scoring method they developed called MATH (mutant-allele tumor heterogeneity) to measure the genetic variability among cancer cells within tumors from 305 patients with head and neck cancer. High MATH scores corresponded to tumors with many differences among the gene mutations present in different cancer cells.
Thu, 16 Apr 2015 19:27:43 EDT
Facebook users' wishful thinking: Cyberbullying, depression won't happen to me
Facebook users with so-called optimistic bias think they're less likely than other users to experience cyberbullying, depression and other negative social and psychological effects from using the site, a study finds. The study suggests that optimistic bias, or an intrinsic tendency to imagine future events in a favorable light that enhances positive self-regard -- in other words, wishful thinking -- leaves those Facebook users vulnerable to the negative realities of social media.
Thu, 16 Apr 2015 19:27:10 EDT
Ophthalmologists uncover autoimmune process that causes rejection of secondary corneal transplants
Ophthalmologists have identified an important cause of why secondary corneal transplants are rejected at triple the rate of first-time corneal transplants. The cornea -- the most frequently transplanted solid tissue -- has a first-time transplantation success rate of about 90 percent. But second corneal transplants undergo a rejection rate three times that of first transplants.
Thu, 16 Apr 2015 19:27:08 EDT
Professional golfers live a lonely life in the midst of rivalries on a meager income
Many professional golfers live a lonely isolated life in the midst of intense rivalries and on a meager income, new research shows.
Thu, 16 Apr 2015 19:27:06 EDT
Poll: Massachusetts police chiefs favor discretion in issuing concealed gun permits
Who decides who can carry concealed firearms legally? Should local police chiefs have a say? Massachusetts police chiefs think so. A new survey finds that a majority of Massachusetts police chiefs favor continuing to give local police discretion in whether or not to grant concealed carry hand gun permits in their jurisdiction. Massachusetts is one of nine states with a 'may-issue' concealed carry permit law, which gives a police chief discretion in issuing a gun permit.
Thu, 16 Apr 2015 14:55:47 EDT
Repeated marine predator evolution tracks changes in ancient and Anthropocene oceans
Scientists synthesized decades of scientific discoveries to illuminate the common and unique patterns driving the extraordinary transitions that whales, dolphins, seals and other species underwent as they moved from land to sea. Drawing on recent breakthroughs in diverse fields such as paleontology, molecular biology and conservation ecology, their findings offer a comprehensive look at how life in the ocean has responded to environmental change from the Triassic to the Anthropocene.
Thu, 16 Apr 2015 14:55:43 EDT
Dating the moon-forming impact event with meteorites
Through a combination of data analysis and numerical modeling work, researchers have found a record of the ancient moon-forming giant impact observable in stony meteorites. The research indicates numerous kilometer-sized fragments from the giant impact struck main belt asteroids at much higher velocities than typical main belt collisions, heating the surface and leaving behind a permanent record of the impact event.
Thu, 16 Apr 2015 14:55:38 EDT
How do we hear time within sound?
How does our auditory system represent time within a sound? A new study investigates how temporal acoustic patterns can be represented by neural activity within auditory cortex, a major hub within the brain for the perception of sound.
Thu, 16 Apr 2015 14:54:25 EDT
Exploring the ADHD-Autism link
A licensed clinical psychologist is focusing on the ADHD-autism link to better understand why people with ADHD and autism may be more prone to substance abuse and, in the process, to develop more effective behavioral therapies.
Thu, 16 Apr 2015 14:11:47 EDT
Giant galaxies die from the inside out: Star formation shuts down in the centers of elliptical galaxies first
Astronomers have shown for the first time how star formation in "dead" galaxies sputtered out billions of years ago. Astronomers have revealed that three billion years after the Big Bang, these galaxies still made stars on their outskirts, but no longer in their interiors. The quenching of star formation seems to have started in the cores of the galaxies and then spread to the outer parts.
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