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Study Finds Porn Exposure Associated With Smaller Brain Region 211

Posted by timothy from the news-for-nerds dept.
New submitter Bodhammer (559311) writes "German researchers looked at the brains of 64 men between the ages of 21 and 45 and found that one brain region (the striatum, linked to reward processing), was smaller in the brains of porn watchers, and that a specific part of the same region is also less activated when exposed to more pornography." While it's tempting to cast blame, "the study doesn't confirm whether watching porn causes the changes, or whether people with a certain brain type are inherently more apt to tune into X-rated content." The study's abstract is available; the paper itself is pay-walled.
Earth

Trillions of Plastic Pieces May Be Trapped In Arctic Ice 136

Posted by samzenpus from the plastic-ice dept.
sciencehabit (1205606) writes "Humans produced nearly 300 million tons of plastic in 2012, but where does it end up? A new study has found plastic debris in a surprising location: trapped in Arctic sea ice. As the ice melts, it could release a flood of floating plastic onto the world. From the article: 'Scientists already knew that microplastics—polymer beads, fibers, or fragments less than 5 millimeters long—can wind up in the ocean, near coastlines, or in swirling eddies such as the Great Pacific Garbage Patch. But Rachel Obbard, a materials scientist at Dartmouth College, was shocked to find that currents had carried the stuff to the Arctic.'"
Australia

Australia May 'Pause' Trades To Tackle High-Frequency Trading 342

Posted by samzenpus from the slow-it-down dept.
angry tapir (1463043) writes "The Australian Securities and Investment Commission (ASIC), a government financial watchdog, is reportedly contemplating the idea of implementing a 500 millisecond delay on trades in an effort to put the brakes on high-frequency trading. ASIC last year knocked back the idea and stated that fears about HFT were overblown. However, in a government inquiry today representatives of the organization said the idea of a 'pause' is still on the table."
Earth

Conservation Communities Takes Root Across US 116

Posted by samzenpus from the if-you-plant-it-they-will-eat dept.
Hugh Pickens DOT Com writes "Kate Murphy reports at the NYT about a growing number of so-called agrihoods, residential developments where a working farm is the central feature, in the same way that other communities may cluster around a golf course, pool or fitness center. At least a dozen projects across the country are thriving, enlisting thousands of home buyers who crave access to open space, verdant fields and fresh food. 'I hear from developers all the time about this,' says Ed McMahon. 'They've figured out that unlike a golf course, which costs millions to build and millions to maintain, they can provide green space that actually earns a profit.'

Agritopia, outside Phoenix, has sixteen acres of certified organic farmland, with row crops (artichokes to zucchini), fruit trees (citrus, nectarine, peach, apple, olive and date) and livestock (chickens and sheep). Fences gripped by grapevines and blackberry bushes separate the farm from the community's 452 single-family homes, each with a wide front porch and sidewalks close enough to encourage conversation. The hub of neighborhood life is a small square overlooking the farm, with a coffeehouse, farm-to-table restaurant and honor-system farm stand. The square is also where residents line up on Wednesday evenings to claim their bulging boxes of just-harvested produce, eggs and honey, which come with a $100-a-month membership in the community-supported agriculture, or CSA, program.

'Wednesday is the highlight of my week,' says Ben Wyffels. 'To be able to walk down the street with my kids and get fresh, healthy food is amazing.' Because the Agritopia farm is self-sustaining, no fees are charged to support it, other than the cost of buying produce at the farm stand or joining the CSA. Agritopia was among the first agrihoods — like Serenbe in Chattahoochee Hills, Ga.; Prairie Crossing in Grayslake, Ill.; South Village in South Burlington, Vt.; and Hidden Springs in Boise, Idaho. 'The interest is so great, we're kind of terrified trying to catch up with all the calls,' says Quint Redmond adding that in addition to developers, he hears from homeowners' associations and golf course operators who want to transform their costly-to-maintain green spaces into revenue-generating farms. Driving the demand, Redmond says, are the local-food movement and the aspirations of many Americans to be gentlemen (or gentlewomen) farmers. 'Everybody wants to be Thomas Jefferson these days.'" The city of Detroit is planning a 26.9-acre urban farm project on one of its vacant high school properties. Produce from the project will be included in meals for students in the district and later to the larger community.

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