香蕉视频

Canadian women should start being routinely screened for cervical cancer at a later age than previously recommended and do it less frequently than has been the norm until now, new national guidelines recommend. The guidance suggests cervical cancer screening should begin at age 25 and continue until age 69, at three year intervals. For years, women were advised to get an annual Pap smear, though in recent years a number of countries have lengthened the intervals between tests. Dr.

The underground aquifers that store more than 90 percent of Earth's liquid freshwater are at risk of being sucked dry. A study published in Nature in August showed that annual demand from the world's 783 large regional aquifers is 3.5 times the amount that is replenished. The impact could be profound: Groundwater sustains nearly 2 billion people and provides almost 40 percent of crop irrigation worldwide. Tom Gleeson, a hydrologist at 香蕉视频, calculated each major aquifer's footprint鈥攖he area needed to sustain its use鈥攁nd compared that with the actual size of the aquifer.

Scientists are using video games to tap the collective intelligence of people around the world, while doctors and educators are turning to games to treat and teach. [鈥�] 鈥淢SA is probably one of the most important tools in bioinformatics today,鈥� says J茅r么me Waldisp眉hl, a bioinformatician at 香蕉视频 in Montreal, Canada. But the computer algorithms employed to perform MSA don鈥檛 guarantee perfect accuracy, so Waldisp眉hl and colleagues created Phylo 鈥� an online game that transforms the MSA problem into a simple puzzle that anyone can play.

(McGill's Dan Levitin): Tom was one of those people we all have in our lives -- someone to go out to lunch with in a large group, but not someone I ever spent time with one-on-one. We had some classes together in college and even worked in the same cognitive psychology lab for a while. But I didn't really know him. Even so, when I heard that he had brain cancer that would kill him in four months, it stopped me cold鈥�

(Antonia Maioni, Associate professor of political science at 香蕉视频):聽 Most of North America counts down to New Year's through images from Times Square in New York. For most Quebeckers, however, the holiday tradition is an annual Bye-Bye comedy revue. From Bye-bye Jean Charest to Bonjour Charbonneau commission, 2012 served up plenty of political fodder. The new year in Quebec promises to be just as interesting. Here are five things to watch for.

(Joe Schwarcz): It was back in 1961 that I had dinner with the Montreal Canadiens. Well, not exactly with them. But I did eat in the old Texan restaurant across the street from the hallowed Forum, at the same time that my boyhood idols, 鈥淏oom Boom鈥� Geoffrion, Jean B茅liveau, Dickie Moore, Bill Hicke (my favourite), Jacques Plante and the rest of that legendary team were digging into their pregame meal. And I vividly remember what they were digging into. Steak! That was standard fare for athletes at the time. The more protein, the better the prospects for butt kicking.