Johnald's Fantastical Daily Link Splurge |
Posted: 03 May 2009 09:50 AM PDT ***** |
Antigenic Shift - The Spread of a New Mutated Virus Posted: 03 May 2009 08:31 AM PDT (13 votes - 1 comment - 142 views) This video describes the process by which viruses can share a segment of their gemone with another strain during infection. the influenza Type-A virus is capable of what is known as antigenic shift. The current flu in circulation is an entirely new, mutated pathogen formed from elements of human, pig, and avian virus strains. A sudden shift in the antigenicity of a virus resulting from the recombination of the genomes of two viral strains. Antigenic shift is seen only with influenza A viruses. It results usually from the replacement of the hemagglutinin (the viral attachment protein that also mediates the entry of the virus into the cell) with a novel subtype that has not been present in human influenzaviruses for a long time. The source of these new genes is the large reservoir of influenzaviruses in waterfowl. The consequences of the introduction of a new hemagglutinin into human viruses is usually a pandemic, or a worldwide epidemic. |
Mechanisms of Self-Control Pinpointed in Brain Posted: 03 May 2009 08:10 AM PDT When you're on a diet, deciding to skip your favorite calorie-laden foods and eat something healthier takes a whole lot of self-control -- an ability that seems to come easier to some of us than others. Now scientists have uncovered differences in the brains of people who are able to exercise self-control versus those who find it almost impossible. |
Posted: 03 May 2009 07:27 AM PDT http://www.youtube.com/watch?v=1YPg2p0rP4A&feature=related |
Posted: 03 May 2009 06:06 AM PDT |
Posted: 03 May 2009 05:09 AM PDT http://www.findingdulcinea.com/docroot/dulcinea/fd_images/news/international/2009/jan/Atheism-Bus-Ads-Stir-Debate-in-Spain-and-Worldwide/news/0/image.jpg |
http://i34.tinypic.com/2wlzt5j.jpg Posted: 03 May 2009 05:08 AM PDT http://i34.tinypic.com/2wlzt5j.jpg |
http://www.egge.net/~savory/stus_blog_pix/atheism3.jpg Posted: 03 May 2009 05:08 AM PDT http://www.egge.net/~savory/stus_blog_pix/atheism3.jpg |
http://scienceblogs.com/pharyngula/2008/03/07/Reward_of_the_Atheist.jpg Posted: 03 May 2009 05:08 AM PDT http://scienceblogs.com/pharyngula/2008/03/07/Reward_of_the_Atheist.jpg |
YouTube - Chemical Brothers ft Richard Ashcroft - The Test Posted: 03 May 2009 04:56 AM PDT http://www.youtube.com/watch?v=QDe6MZQjpho&eurl=http%3A%2F%2Fwww.facebook.com%2Fposted.php%3Fid%3D1230282094%26start%3D60%26hash%3D2b10385445409ca69abb969496f02813&feature=player_embedded |
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