Ethanol fuel refineries could be releasing much larger amounts of some ozone-forming compounds into the atmosphere than previous estimates. 

Ethanol, a government mandated and subsidized renewable transportation fuel made from corn, now constitutes approximately 10 percent of the fuel used in gasoline vehicles in the U.S., according to the new study. The renewable fuel mandate was a successful environmental effort to increase the use of ethanol and other renewable fuels aims to reduce greenhouse gas emissions and petroleum imports, while encouraging development and expansion of the U.S. renewable fuels sector, according to the U.S. Environmental Protection Agency.

Researchers have succeeded in reconstructing the neuronal networks that interconnect the elementary units of sensory cortex, called cortical columns. A key challenge in neuroscience research is identifying organizational principles of how the brain integrates sensory information from its environment to generate behavior. One of the major determinants of these principles is the structural organization of the highly complex, interconnected networks of neurons in the brain.

To help, researchers constructed anatomically-realistic 3D models of such neuronal networks in the rodent brain. 

Mutations in two genes cause a fatal lung scarring disease known as familial pulmonary fibrosis and can cause excessive shortening of the ends of chromosomes, known as telomeres. Telomeres are repetitive sequences of DNA that protect the ends of chromosomes from deteriorating. Think of them like the plastic ends of shoelaces, which protect shoelaces from fraying. 

As the realities of legalized marijuana take hold in four states and the District of Columbia, legislators and regulators could learn a lot from the successes (and failures) of the tobacco and alcohol industries in keeping their harmful products out of the hands of children and adolescents.

People with insomnia and other sleep problems also report increased sensitivity to pain, reports a new study.

The study included more than 10,400 adults from a large, ongoing Norwegian health study. Each subject underwent a standard test of pain sensitivity--the cold pressor test--in which subjects are asked to keep their hand submerged in a cold water bath.The effect on pain tolerance appears strongest in people who suffer from both insomnia and chronic pain, who may benefit from treatments targeting both conditions.  

America is the fattest developed country on earth and psychologists say that positive images and societal reinforcement make losing weight easier - obese people are more likely to have obese friends and family, the same way alcoholics and drug addicts do.

Yet such 'thinspiration' images are also considered body shaming of overweight people by some. The 'Objectification' hypothesis of cultural body standards goes both ways.The Social Cognitive hypothesis also proposes that people learn from modeled behaviors and that 'thinspiration' content may be particularly important because such pictures are likely to get more positive reinforcement than unflattering pictures.