Category Archives: Formats

Nature, News

Peruvian biologist’s defamation conviction overturned

A defamation case that hinges on a dispute over the presence of genetic modification in Peruvian maize crops, and that has attracted international attention, has moved back to square one — with a twist.

Biologist Ernesto Bustamante Donayre was last April found guilty of defamation — a criminal offence in Peru — for publicly criticizing a report published by a fellow biologist. Last month, however, the conviction was overturned: the appeal judge found that a lower court had not demonstrated that Bustamante had sufficient motivation to harm or defame his alleged victim. A recent government study of the crops in question may shape the outcome of any subsequent proceedings, Bustamante says.

Continue reading Peruvian biologist’s defamation conviction overturned →

Features, Madrid, Nature Outlook

Big science at the table

José Ordovas sips a mint tea in a languid café in Madrid, Spain. His eyes scan two mobile phones as he confirms his next appointments. In conversation, he switches effortlessly between Spanish and English to find the right expressions. If the geneticist seems to be moving on a different wavelength from the other patrons, he could blame it on the jet lag: he has just flown from Boston where it’s now 5am. This is his third overseas trip this month, but Ordovas contends his frequent visits from Tufts University, where he’s based, to Europe have no adverse effects. “For me the time difference doesn’t matter, I’m up at 4am to make calls to Europe when I’m home anyway, and then I’m up late on calls to California,” he says.

Ordovas embodies the hustle and bustle of the ‘big science’ approach that has changed nutrition research in the past decade. This field, once confined to small groups of researchers studying the effects of single nutrients — such as particular vitamins or proteins — on a few dozen volunteers, is now adopting the heavy-lifting tools developed for genetics and pharmaceutical research. It also has a catchy name: nutrigenomics. And the more that researchers learn how our genes interact with our diet, the more they appreciate the deeper insight gained by an interdisciplinary approach. Such knowledge could lead to breakthroughs in our understanding of risk factors for diabetes and cardiovascular disease or, for example, improve the design of weight-loss diets.

Continue reading Big science at the table →

Cambridge Mountaineering, Covadonga, Essays, Photos

Winter in the Picos de Europa

CUMC2010coverfrontThe snow under my tentatively placed left boot gave way and I scampered back onto my perch. I leaned heavily on my ice axe with one hand and cheerlessly on the snow with my other hand. I pawed the snowy slope like a misguided rhinoceros charging up the wrong mountain. When I hazarded a look at my leg, I noted a dismaying gap between its boot and crampon. Continue reading Winter in the Picos de Europa →

IEEE Spectrum, News

A Robot’s Body of Knowledge

Early risers may think it’s tough to fix breakfast first thing in the morning, but robots have it even harder. Even grabbing a cereal box is a challenge for your run-of-the-mill artificial intelligence (AI). Frosted Flakes come in a rectangular prism with colorful decorations, but so does your childhood copy of Chicken Little. Do you need to teach the AI to read before it can grab breakfast?

Maybe not. A team of European researchers has built a robot called ARMAR-III, which tries to learn not just from previously stored instructions or massive processing power but also from reaching out and touching things. Consider the cereal box: By picking it up, the robot could learn that the cereal box weighs less than a similarly sized book, and if it flips the box over, cereal comes out. Together with guidance and maybe a little scolding from a human coach, the robot—the result of the PACO-PLUS research project—can build general representations of objects and the actions that can be applied to them. “[The robot] builds object representations through manipulation,” explains Tamim Asfour of the Karlsruhe Institute of Technology, in Germany, who worked on the hardware side of the system.

Read the rest of this news story on Spectrum’s website [html].