Topical drug darkens human skin in a dish without UV

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Researchers in Boston have developed a class of small molecules that successfully penetrates and darkens human skin samples in the laboratory. The drug also generates protective tans in red-haired mice, which–like their human counterparts — are more susceptible to skin cancer via ultraviolet (UV) radiation. The molecule works by stimulating ...

What makes a mother risk her life to protect her ...

Biology
From birds to mammals, from fish to reptiles, the immediate reaction to an impending threat to the animal itself is usually to flee or to stop moving in an attempt to go unnoticed. However, when parents feel threatened in the presence of their young, their reaction is completely different: they ...

A plant-based diet boosts weight loss twice as effectively as ...

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WASHINGTON–All calories may not be created equal, at least when it comes to utilizing dietary patterns for weight loss. A new controlled study published in the Journal of the American College of Nutrition finds a plant-based vegetarian diet leads to greater weight loss compared to a calorie-equivalent diabetes diet. A ...

Where cigarette smoking’s damage is done… down to your DNA

Medicine
Scientists have known for decades that smoking cigarettes causes DNA damage, which leads to lung cancer. Now, for the first time, UNC School of Medicine scientists created a method for effectively mapping that DNA damage at high resolution across the genome. The innovation comes from the laboratory of Nobel laureate ...

ALMA Observes Birth Cry of a Massive Baby Star

Astronomy
An international research team used the Atacama Large Millimeter-submillimeter Array (ALMA) to determine how the enigmatic gas flow from a massive baby star is launched. The astronomers observed the baby star and obtained clear evidence of rotation in the outflow. The motion and the shape of the outflow indicate that ...

Short duration of breastfeeding and maternal obesity linked to fatty ...

Medicine
Amsterdam, The Netherlands, June 12, 2017 – Infants who were breastfed for less than six months before starting infant formula milk and infants who had mothers who were obese at the start of pregnancy, were much more likely to develop nonalcoholic fatty liver disease (NAFLD) as adolescents, according to a ...

Hubble applauds waltzing dwarfs

Astronomy
This seemingly unspectacular series of dots with varying distances between them actually shows the slow waltz of two brown dwarfs. The image is a stack of 12 images made over the course of three years with the NASA/ESA Hubble Space Telescope. Using high-precision astrometry, an Italian-led team of astronomers tracked ...

Unprofitable subsidiaries becoming new tax haven for multinational corporations

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Multinational corporations are moving income from their profitable, high-tax subsidiaries into unprofitable ones to save money on taxes, a University of Waterloo study has found. The study’s findings shed light on a tax planning strategy that is not currently focused on by governments, which tend to focus their efforts on ...
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  • Tons of gull poop mess up nearby water June 23, 2017
    At least 1.4 million seagulls feed at landfills across North America and that’s a big threat to the health of nearby waters. “We estimate these gulls transport and deposit an extra 240 tons of nitrogen and 39 tons of phosphorus into nearby lakes or reservoirs in North America each year through their feces,” says lead […]
  • Saving energy at home may make us think ‘I’ve done enough’ June 20, 2017
    People who report working to save energy in their own lives may be less likely to support government action on energy-use reduction and sustainability, a new study suggests. Following the shutdown of the Fukushima power plant, which endured one of the worst nuclear accidents in history in 2011 due to a 9.0 magnitude earthquake and […]