Culture

MINNEAPOLIS - People who have been diagnosed with a mild concussion, or mild traumatic brain injury, may have a 56 percent increased risk of developing Parkinson's disease, according to a study published in the April 18, 2018, online issue of Neurology®, the medical journal of the American Academy of Neurology.

Facebook, Google, Comcast and Berkshire Hathaway are among a number of large companies that have dual-class stock structures, providing controlling shareholders with majority voting power despite owning a minority of total equity.

For these dual-class firms, market valuations are higher early in their life cycles, while the valuation premium tends to disappear about six years after their IPOs, according to new research from the University of Notre Dame.

As the growing season progresses, you might not notice much about what's happening to plants under the soil. Most of us pay attention to new shoots, stems, leaves, and eventually the flowers and crop we intend to grow. We might think of roots as necessary, but uninteresting, parts of the crop production process.

Paul Hallett and his team disagree. They focus on what's going on in the soil with the plant's roots.

In 1907, a statistician named Francis Galton recorded the entries from a weight-judging competition as people guessed the weight of an ox. Galton analyzed hundreds of estimates and found that while individual guesses varied wildly, the median of the entries was surprisingly accurate and within one percent of the ox's real weight. When Galton published his results, he ushered the theory of collective intelligence, or the "wisdom of crowds," into the public conscience.

New answers have been uncovered in the fight against bare-nosed wombat sarcoptic mange, thanks to the latest research by the University of Tasmania.

The findings published today (18 April 2018) in the Royal Society journal Open Science uncover previously unknown health issues in Tasmania's bare-nosed wombat population affected by sarcoptic mange.

The research follows the recent outbreak of sarcoptic mange at Narawntapu National Park in the Tasmania's North, which has seen a 94 per cent decrease in the wombat population in that area, over the past seven years.

A new automated text messaging service may curb opioid abuse and reduce the likelihood of relapse while also decreasing treatment costs, according to researchers at Washington University School of Medicine and Epharmix, a St. Louis-based digital health company.

The service provides automated text messages and phone calls to patients being treated for opioid addiction. Such messages ask patients if they're feeling OK or struggling with potential relapse. Patients also can activate a panic button for immediate help.

Ithaca, NY -- Newly publicized audiovisuals support full species status for one of the dancing birds-of-paradise in New Guinea. This new species, called the Vogelkop Superb Bird-of-Paradise, is found only in the island's far-western Bird's Head, or Vogelkop, region. In a new paper published in the journal PeerJ, scientists "show and tell" half-a-dozen ways this form is distinct from the more widespread Superb Bird-of-Paradise, now called the Greater Superb Bird-of-Paradise--the bird known for its bouncy "smiley face" dance routine.

CHAPEL HILL, NC - If the ultraviolet radiation from the sun damages human DNA to cause health problems, does UV radiation also damage plant DNA? The answer is yes, but because plants can't come in from the sun or slather on sunblock, they have a super robust DNA repair kit. Today, the UNC School of Medicine lab of 2015 Nobel laureate Aziz Sancar, MD, PhD, has published an exquisite study of this powerful DNA repair system in plants, which closely resembles a repair system found in humans and other animals.

Toronto - If you've ever noticed yourself thinking about the timing of a plan in two opposing ways - something that feels longer off than your actual time calculation -- you're on to something. New research shows our different ways of estimating time don't necessarily move in lock-step.

Relative time estimates refer to how distant or close a future event feels, such as "soon" or "far away." Absolute time estimates however use objective units -- days, weeks, months or years - to describe when an event may occur.