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Male contraceptive compound stops sperm without affecting hormones: Study in monkeys

A new study¬† details how a compound called EP055 binds to sperm proteins to significantly slow the overall mobility of the sperm without affecting hormones, making EP055 a potential “male pill” without side effects. “Simply put, the compound turns-off the sperm’s ability to swim, significantly limiting fertilization capabilities”. “This makes EP055 an ideal candidate for…

Swirling liquids work similarly to bitcoin

Fluid dynamics is not something that typically comes to mind when thinking about bitcoin. But for one Stanford physicist, the connection is as simple as stirring your coffee. ¬†Stanford applied physics doctoral student William Gilpin described how swirling liquids, such as coffee, follow the same principles as transactions with cryptocurrencies such as bitcoin. This parallel…

Killer whale genetics raise inbreeding questions

A new genetic analysis of Southern Resident killer whales found that two male whales fathered more than half of the calves born since 1990 that scientists have samples from, a sign of inbreeding in the small killer whale population that frequents Washington’s Salish Sea and Puget Sound. Only about 26 of the 76 endangered whales…

Children are as fit as endurance athletes

Children not only have fatigue-resistant muscles, but recover very quickly from high-intensity exercise — even faster than well-trained adult endurance athletes. which compared the energy output and post-exercise recovery rates of young boys, untrained adults and endurance athletes. The research could help develop athletic potential in children as well as improve our understanding of how…

Dark chocolate consumption reduces stress and inflammation

New research shows there might be health benefits to eating certain types of dark chocolate. Findings from two studies being presented today at the Experimental Biology 2018 annual meeting in San Diego show that consuming dark chocolate that has a high concentration of cacao (minimally 70% cacao, 30% organic cane sugar) has positive effects on…

Found: A new form of DNA in our cells

It’s DNA, but not as we know it. In a world first, Australian researchers have identified a new DNA structure — called the i-motif — inside cells. A twisted ‘knot’ of DNA, the i-motif has never before been directly seen inside living cells. Deep inside the cells in our body lies our DNA. The information…

Cheap 3-D printer can produce self-folding materials

Researchers at Carnegie Mellon University have used an inexpensive 3-D printer to produce flat plastic items that, when heated, fold themselves into predetermined shapes, such as a rose, a boat or even a bunny. Lining Yao, assistant professor in the Human-Computer Interaction Institute and director of the Morphing Matter Lab, said these self-folding plastic objects…

Leptin’s neural circuit identified

Revealing surprising answers to a long-standing enigma about the brain target of the anti-obesity hormone leptin, neuroscientists at Tufts University School of Medicine have used CRISPR genome editing to identify a neural circuit in the hypothalamus as the primary mechanism in mediating leptin’s anti-obesity and anti-diabetes effects and have identified two distinct mechanisms underlying leptin’s…

New new genus and species of extinct baleen whale identified

University of Otago palaeontologists are rewriting the history of New Zealand’s ancient whales by describing a previously unknown genus of baleen whale, alive more than 27.5 million years ago and found in the Hakataramea Valley. The new genus and species of extinct baleen whale is based on a skull and associated bones unearthed from the…

Meteorite diamonds tell of a lost planet

Using transmission electron microscopy, EPFL scientists have examined a slice from a meteorite that contains large diamonds formed at high pressure. The study shows that the parent body from which the meteorite came was a planetary embryo of a size between Mercury to Mars. On October 7, 2008, an asteroid entered Earth’s atmosphere and exploded…

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