MedWorm provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest medical blog items that have been tagged with 'entropy'. Sat, 03 Sep 2011 02:49:11 +0100 http://www.medworm.com/index.php?rid=4419183&cid=t_113072_107_f&fid=36672&url=http%3A%2F%2Fwww.sciencebase.com%2Fscience-blog%2Fsix-science-snippets.html from David Bradley What is entropy? – This property of all matter – this collapse into disorder – is given a name: entropy. Things that are disordered have greater entropy than things that are relatively more organized. A glass of water, in which the molecules of water itself can move around relatively freely, is more disorganized – has greater entropy – than a block of ice, in which the molecules of water are trapped into a rigid, organized array. Research at recess – Twenty five 8-10-year-olds, under the guidance of University College London neuroscientist Beau Lotto, found that bees can learn complex rules to solve puzzles, and that individual bees have personal preferences, suggesting the insects may possess some form of personality. As bold as tho... Sciencebase Science Blog blogs http://www.medworm.com/rss/comments.php?id=4419183 Mon, 31 Jan 2011 16:00:09 +0100 4419183 http://www.medworm.com/index.php?rid=4418798&cid=t_113072_139_f&fid=38879&url=http%3A%2F%2Fmedia.rawvoice.com%2Fpmn_twiv%2Ftraffic.libsyn.com%2Ftwiv%2FTWiV118.mp3 Hosts: Vincent Racaniello, Alan Dove, and Rich Condit On episode #118 of the podcast This Week in Virology, Vincent, Alan, and Rich answer listener questions about vaccinia virus, fungal viruses, synthetic viruses, influenza vaccine, HeLa cells, multiplicity of infection, and much more. Right click to download TWiV #118 (68 MB .mp3, 94  minutes). Subscribe to TWiV (free) in iTunes , at the Zune Marketplace, by the RSS feed, or by email, or listen on your mobile device with the Microbeworld app. Links for this episode: Distribution of glycoproteins on virion surface (paper 1, paper 2) – thanks, Conor! Susceptibility of cancer cell lines to tanapox (thanks, Cheryl!) Poxvirus family tree Sugar, the bitter truth (YouTube) – thanks, Mary! BBC podcast: Artificial life (thank... virology blog blogs http://www.medworm.com/rss/comments.php?id=4418798 Sun, 30 Jan 2011 17:54:39 +0100 4418798 http://www.medworm.com/index.php?rid=1147422&cid=t_113072_107_f&fid=36698&url=http%3A%2F%2Fminingdrugs.blogspot.com%2F2007%2F11%2Fonce-upon-cyclopentyl-cyclohexyl.html via The Curious WavefunctionOne common strategy used by medicinal chemists for enhancing potency is to add a methylene carbon in a ring that's fitting into a lipophilic pocket. A methylene group usually contributes about 4 kJ/mol of affinity....or maybe not.Gerhard Klebe's group at Marburg are studying inhibitors of thrombin in which they replace a cyclopentyl group by a cyclohexyl group. To their surprise they observe (DOI: 10.1002/anie.200701169) no change in binding affinity. Crystallography indicates no electron density for the part occupied by the cyclohexyl group but robust density for the cyclopentyl. The authors conclude that while the cyclohexyl binding is enthalpically unfavourable, entropically the six-membered ring can flip and twist and dance, which is favourable, and also doe... Mining Drug Space blogs http://www.medworm.com/rss/comments.php?id=1147422 Thu, 08 Nov 2007 22:14:00 +0100 1147422 http://www.medworm.com/index.php?rid=551388&cid=t_113072_133_f&fid=35452&url=http%3A%2F%2Fwww.graphictruth.com%2F2007%2F04%2Fthose-evil-liberals-what-bushiet-thinks.html This article illustrated with products from Shirt Lords (Union of Evil Overlords) and The Horror Haven (Baphomet poster). Please consider them for help decorating your evil liberal bodies and lairs.You can syndicate this site using our atom feed. (Source: Graphictruth) Graphictruth blogs http://www.medworm.com/rss/comments.php?id=551388 Mon, 02 Apr 2007 04:00:00 +0100 551388