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Showing posts from October 4, 2015

Male Birth Control Treatment Could Focus on Sperm Proteins, Not Hormones

A male form of "the pill" has stymied researchers for years, but now a new study finds that such male birth control may be possible by blocking a single protein in sperm cells. In a mouse study, the researchers focused on a protein called calcineurin, which is found in the sperm-producing cells of the testes as well as other cells in the body. The researchers genetically engineered mice so that they lacked a gene that makes part of the calcineurin protein but is activatedonly in sperm-producing cells.

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UK Womb Transplants: 5 Ethical Issues

Ten women in the United Kingdom may undergo womb transplants as part of an upcoming study, but the procedure raises some ethical issues, experts say. The study, which is planned for next year, was just granted approval by the Health Research Authority, part of the U.K.'s Department of Health, which oversees research on humans. It will include women ages 25 to 38 who don’t have a uterus, either because they were born without one, or because they had the organ removed as treatment for a serious illness, such as cervical cancer.

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Beauty or Beast? Why Perceptions of Attractiveness Vary

If you ask these questions to a group of people, they may have different answers, and a new study hints at why: Your perception of other people's attractiveness is mainly the result of your own experiences. In the study of twins, researchers found that a person's environment plays a bigger role than genes in shaping whom they find attractive. The idea that beauty is in the eye of the beholder has been around for a long time, said Laura Germine, a psychiatric researcher at Massachusetts General Hospital in Boston and lead author of the new study.

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Mega Tsunami with 50-Foot Waves Swallowed Ancient Island

A mega tsunami taller than a 50-story skyscraper once engulfed an island off the west coast of Africa, researchers say. This finding suggests the giant landslides and killer waves that such tsunamis can trigger might pose a major hazard to people living on islands and coasts, scientists added. Tsunamis are monster waves that are often caused by earthquakes.


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Big gulp: feeding strategy of blue whales revealed

By Will Dunham WASHINGTON (Reuters) - The blue whale is the largest creature on Earth and perhaps the biggest that ever lived, so it is no surprise it has a huge appetite. But the strategies this behemoth uses to get enough food has not been well understood - until now. Scientists said on Friday a study of blue whales off California's coast that used tags to track their movements and their prey, tiny shrimp-like crustaceans called krill, showed these marine mammals are not indiscriminate grazers as long thought. ...


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Six experts vie for top U.N. climate science job

By Alister Doyle OSLO (Reuters) - Six candidates are vying to become head of the U.N.'s top authority on climate change science this week, seeking to narrow down uncertainties about future warming to guide a trillion-dollar shift to greener energies. Top scientists - all men - from Austria, Belgium, Sierra Leone, South Korea, Switzerland and the United States will seek to become chair of the Intergovernmental Panel on Climate Change (IPCC) in a vote due on Tuesday at an IPCC meeting in Croatia. Governments have to pick a successor to Rajendra Pachauri of India, who quit the Nobel Peace Prize winning panel in February, after 13 years, when a female researcher in India accused him of sexual harassment, an allegation he denies.

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Six experts vie for top U.N. climate science job

By Alister Doyle OSLO (Reuters) - Six candidates are vying to become head of the U.N.'s top authority on climate change science this week, seeking to narrow down uncertainties about future warming to guide a trillion-dollar shift to greener energies. Top scientists - all men - from Austria, Belgium, Sierra Leone, South Korea, Switzerland and the United States will seek to become chair of the Intergovernmental Panel on Climate Change (IPCC) in a vote due on Tuesday at an IPCC meeting in Croatia. Governments have to pick a successor to Rajendra Pachauri of India, who quit the Nobel Peace Prize winning panel in February, after 13 years, when a female researcher in India accused him of sexual harassment, an allegation he denies.

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