Inner Workings: Freeing the dinos within:
نویسندگان
چکیده
منابع مشابه
Inner workings: Freeing the dinos within.
Paleontologists have long faced a daunting obstacle to their research: Fossils are usually embedded in rock. To manually wrench the fossils out, scientists use an array of tools, from needles to dentist’s drills to dissolving acids, often with destructive results. Swedish paleozoologist Erik Jarvik, for example, famously took 25 years to create a precise, anatomically correct 3D wax model of th...
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In a small town in the middle of Montana, biologists handle deadly pathogens such as Ebola. Hamilton, with a population of about 4,500, hosts the National Institute of Allergy and Infectious Diseases’ Rocky Mountain Laboratories, one of a few dozen facilities worldwide equipped to deal with disease agents designated the strictest biosafety level 4 (BSL-4). For virologists such as postdoc Darryl...
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In 2010, Rashidul Haque spent a week at Washington University in St. Louis getting up to speed on a seemingly unpleasant task: the art and practice of collecting and storing human excrement. By learning the necessary steps for sample preservation and DNA extraction, Haque, who has spent the past 25 years developing new ways of diagnosing pathogens from clinical stool samples as head of the para...
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Seeing is believing but the results seemed hard to fathom. In 1962, scientists observed an epilepsy patient named W.J. as he attempted to complete a seemingly simple task: manipulate a set of painted blocks to match a specific pattern. Strangely, he could only execute the task with his left hand, not his right. This striking phenomenon, later captured on film (Movie S1), was one in a series of ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2014
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1417048111