Curators, Scientific Adventurers and Book Worms to Watch in 2012 | Around The Mall. Available now: a guide to using Twitter in university research, teaching, and impact activities. TalkingScience. Mar. 13, 2013 The Dish on Locusts by The Bug Chicks Last week, parts of the Middle East experienced something we've probably all heard of: a locust plague. locust, plague, grasshopper, Israel, Egypt Mar. 07, 2013 The Future of Women's History We may never make history, but each week we teach young women who could, particularly in the sciences. careers, science, women, bravery, insects, workshops, Women's History Month, St.
Don't Miss This Comet! By Ira Flatow Visible With the Naked Eye comet, PANSTARR, space, astronomy Feb. 20, 2013 Open Invitation to Lamar Smith, House Science Committee Chairman: Accepted Science Friday invites Chairman Lamar Smith to discuss technology that will track objects such as asteroids that threaten Earth. asteroid 2012 DA14, Lamar Smith, House Science Committee, House Committee on Science, Space, and Technology, Russia, meteor, Russian meteor, asteroid, asteroids, deflecting asteroid Feb. 13, 2013 Entomology in One Word entomology, video, conference, career Feb. 12, 2013 Dr.
The Sciences | Research and Documentation Online 5th Edition. Temporal precision in the LGN « xcorr: computational neuroscience. There’s a new paper just out in J Neurosci by Dan Butts et al. (2011) that offers some key insights into temporal precision in the lateral geniculate nucleus (LGN). The spike trains of LGN cells are remarkably regular; while a Poisson train has Fano factor (variance to mean ratio) of 1, and cortical neurons in areas like MT frequently range around 1.2-1.5 (Dayan & Abbott 2001), retinal ganglion cells and LGN neurons can reach Fano factors of 0.2 or less (Berry and Meister, 1998).
In fact, LGN spike trains are so precise that the jitter of the first spike within a burst event can vary with a standard deviation smaller than 3 ms from trial to trial (Keat et al. 2001). What purpose this precision serves has been the subject of intense speculation. One hypothesis (Butts et al. 2007) is that such precision increases the rate of information transmission and enables more accurate representations of the visual world. The 2011 paper explores how this precision can arise computationally. Related. Rule of 6ix: miRNAs, viruses and high blood pressure.
You may have read earlier this week how human cytomegalovirus - a seriously common pathogen - was discovered to be a possible cause of high blood pressure. What you may not have heard about (or read), is the actual paper that these headlines refer to - see paper here. And, if you had, you may not have been so quick to jump to that same conclusion the media had for it was only a correlation - no causation was determined - but the results are nonetheless important, as you'll see below.What is hypertension?
Hypertension - or high blood pressure - is a chronic disease with deadly implications, affecting an estimated one billion adults worldwide. Referred to as a global pandemic, if left unchecked, high blood pressure can result in terminal damage to both blood vessels and organs leading to stroke, heart attack or kidney failure. Two flavors of hypertension are currently recognized: essential - the most common sort (90%) and secondary, the more rarer form. What about the virus? Places and Spaces :: Mapping Science.
The benefits of blogging - Mola mola Blog | Nature Publishing Group. This is something that I wrote for the British Ecological Society’s membership bulletin. I’m using the fact that that’s only published in hard copy to reproduce a (slightly amended) version here, even though if you’re reading this you are probably already persuaded by the arguments… There are several people to blame. Most directly, Glasgow-based evolutionary biologist and all-round online sage Rod Page.
A year or two ago he gave an entertaining Departmental Seminar here in Sheffield at which he asked something like, ‘How many of you blog?’ And, after a pause in which a hand or two was raised, added, ‘you should’. But while Rod provided the final push, my urge to pontificate goes deeper than that. When writers have achieved a high enough profile they are sometimes prevailed upon to publish their ‘occasional pieces’… The author agrees, reluctantly, modestly… because this kind of put-together is considered a pretty low form of book, barely a book at all.
Home. Is Time an Illusion? | Science. By Leonardo VintiniEpoch Times Staff Created: March 6, 2010 Last Updated: June 17, 2012 Could our past, present, and future exist together? (Photos.com) “Time is a moving image of eternity.” —Plato We tend to believe that destiny is not fixed and that all time past fades into oblivion, but can the movement be a mere illusion? A renowned British physicist explains that in a special dimension, time simply doesn’t exist. “If you try to get your hands on time, it’s always slipping through your fingers,” said Julian Barbour, British physicist and author of “The End of Time: The Next Revolution in Physics,” in an interview with the Edge Foundation. Barbour believes that people cannot capture time because it does not exist.
The concept of a timeless universe is not only irresistibly attractive to a handful of scientists, but such a model may pave the way to explain many of the paradoxes that modern physics faces in explaining the universe. Technology Is One Path Toward Sustainability. A case for modernization as the road to salvation by Michael Shellenberger and Ted Nordhaus Illustration: Thom Lang / Corbis SOMETIME AROUND 2014, Italy will complete construction of seventy-eight mobile floodgates aimed at protecting Venice’s three inlets from the rising tides of the Adriatic Sea.
The massive doors—twenty meters by thirty meters, and five meters thick—will, most of the time, lie flat on the sandy seabed between the lagoon and the sea. But when a high tide is predicted, the doors will empty themselves of water and fill with compressed air, rising up on hinges to keep the Adriatic out of the city. Three locks will allow ships to move in and out of the lagoon while the gates are up. Nowhere else in the world have humans so constantly had to create and re-create their infrastructure in response to a changing natural environment than in Venice. Furthermore, over the course of human history, those technologies have not only been created by us, but have also helped create us. United Academics Blog - Connect Science and Society. Get your lab on twitter! Timothée Poisot | Food webs, community ecology & coevolution.
Ariane6, Le méta moteur de recherche. Actualité des sciences et de l'environnement avec Maxisciences. Science - io9.