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Ebola-hit nations get key supplies: Vital supplies to tackle Ebola are beginning to arrive in Guinea, Liberia and Sierra Leone - the worst-hit countries, Ghana's president says.
'No closure' for Pistorius family: Oscar Pistorius' siblings describe their heartache and criticise media coverage of his trial, on the eve of the South African athlete's sentencing.
Man walks again after transplant: A paralysed Polish man has been able to walk again after a pioneering therapy that involved transplanting specialist cells into his damaged spinal cord.
Canada hit-and-run man 'radicalised': A man who struck two Canadian soldiers with his car before he was shot dead by police had been "radicalised", Canada's PM says.
Driver shot by police after hitting 2 soldiers was 'radicalized': RCMP :
A driver who injured two soldiers and was later fatally shot by police in Saint-Jean-sur-Richelieu, Que., was known to federal authorities as someone who had been "radicalized," according to the RCMP and the Prime Minister's Office.
'He was executed,' says sister of B.C. man killed by police:
The sister of Peter de Groot, the man shot and killed by police in Slocan, B.C., said today that her brother had been "executed" and that the family was considering filing a civil suit.
Prime minister's staffer recalls receiving package containing Jun Lin's foot:
Jenni Byrne, Stephen Harper's deputy chief of staff, told the court she knew something was wrong when she was going through a partially opened package delivered to the party’s headquarters and was overcome by a "very bad smell."
New York Times Science
Global Health: Steroids Are No Boon to World’s Poorer Women: Giving steroids to women who are about to give birth prematurely may be useless or even dangerous in poor countries where most women give birth at home
Well: Ask Well: Do Mosquitoes Spread Ebola?: Mosquitoes spread a number of life-threatening illnesses, but can they spread Ebola? Thankfully, the answer is no, and the reason has to do wtih the unusual feeding and egg-laying cycle of female mosquitoes
Raw Data: Seeking Stars, Finding Creationism: Astronomy is still fending off charges of blasphemy. These days the opposition comes not from the Vatican, but from a people with very different religious beliefs
Well: For Children With Autism, Opening a Door to Dental Care: More dentists are learning to meet the delicate challenge of caring for children with autism Reactions: Patient Records, O.C.D. Burdens, Teenagers Interrogated: Letters to the editor and online comments
Nobel Prize in Chemistry for Improving Microscopy
Eric Betzig, Stefan W. Helland William E. Moerner have been awarded the 2014 Nobel Prize in Chemistry for enabling microscopes to gaze at smaller structures than anyone thought possible. Scientists believed that microscopy would never obtain a better resolution than half the wavelength of light for a long time, many even started to consider it a physical limit after microscopist Ernst Abbe declared it so in 1873. Nonetheless, these three scientists circumvented that supposed limit - and changed the world of microscopy.
Using this new micro-microscopy, what has become known as nanoscopy, scientists can now visualize incredibly small features:
They can see how molecules create synapses between nerve cells in the brain; they can track proteins involved in Parkinson’s, Alzheimer’s and Huntington’s diseases as they aggregate; they follow individual proteins in fertilized eggs as these divide into embryos.
From the Nobel Prize committee:
Two separate principles are rewarded. One enables the method stimulated emission depletion (STED) microscopy, developed by Stefan Hell in 2000. Two laser beams are utilized; one stimulates fluorescent molecules to glow, another cancels out all fluorescence except for that in a nanometre-sized volume. Scanning over the sample, nanometre for nanometre, yields an image with a resolution better than Abbe’s stipulated limit.
Eric Betzig and William Moerner, working separately, laid the foundation for the second method, single-molecule microscopy. The method relies upon the possibility to turn the fluorescence of individual molecules on and off. Scientists image the same area multiple times, letting just a few interspersed molecules glow each time. Superimposing these images yields a dense super-image resolved at the nanolevel. In 2006 Eric Betzig utilized this method for the first time.
Today, nanoscopy is used world-wide and new knowledge of greatest benefit to mankind is produced on a daily basis.
Read the full press release here.
More physics here than in this years physics Nobel
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