News tagged with ring closure
Bow down to the light: Light-triggered microscale robotic arm makes bending and stretching motions
(PhysOrg.com) -- As miniaturization progresses, microrobots and nanomachines have moved beyond the realm of pure speculation. This technology requires tiny components that can respond to stimulation by undergoing ...
Nov 21, 2011 |
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Ring closure as warning: New reagent for the detection of organophosphate neurotoxins with an extremely fast response
(PhysOrg.com) -- Soman, Tabun, and Sarin (which has already been used in terrorist attacks) are chemical weapons that attack the nervous system. When inhaled, these extremely toxic organophosphates can lead to death within ...
Chemistry / Analytical Chemistry
Sep 16, 2009 |
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Search results for ring closure
Cell movement patterns
(PhysOrg.com) -- Whereas a cut knee often reduces children to tears, adults are more likely to be distressed by the fear of cancer. In both cases, that is wound healing and the growth and spread of tumours, ...
Mar 09, 2012 |
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X-rays reveal how soil bacteria carry out surprising chemistry
Researchers working at the SLAC National Accelerator Laboratory have used powerful X-rays to help decipher how certain natural antibiotics defy a longstanding set of chemical rules – a mechanism that ...
Mar 04, 2012 |
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For the dogs: Team performs open-heart canine surgeries
Plagued with a defective heart valve that caused fluid accumulation in his lungs, Leo was in need of serious medical help.
Jan 19, 2012 |
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Highly selective catalyst developed for ring-closing olefin metathesis
Research carried out at Boston College, in collaboration with scientists at MIT and the University of Oxford, has led to the development of an efficient and highly selective catalyst for ring-closing olefin metathesis, one ...
Nov 02, 2011 |
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Deadly medication? Scientists shed light on the dark secret of Queen Hatshepsut's flacon
The corpus delicti is a plain flacon from among the possessions of Pharaoh Hatshepsut, who lived around 1450 B.C., which is on exhibit in the permanent collection of the Egyptian Museum of the University of ...
Other Sciences / Archaeology & Fossils
Aug 19, 2011 |
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Fused indolines made by asymmetrical carbon-carbon coupling
(PhysOrg.com) -- Many drugs are based on natural substances. Because it is usually difficult, if not impossible, to isolate these in sufficient quantities from plants or microorganisms, they must be synthesized ...
Jul 07, 2011 |
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Large Hadron Collider smashes another record
The world's biggest particle collider set a new record early Monday, a feat that should accelerate the quest to pinpoint the elusive particle known as the Higgs Boson, a senior physicist said.
May 23, 2011 |
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Riddle of 'God particle' could be solved by 2012: CERN (Update)
Physicists said on Tuesday they believed that by the end of 2012 they could determine whether a theorised particle called the Higgs boson, which has unleashed a gruelling decades-long hunt, exists or not.
May 17, 2011 |
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Defective plastics repair themselves
Indestructible things are a figment of the imagination of advertising. Even plastic components that have to stand up to major mechanical loads can break. The reason for this are microcracks that may be found ...
Apr 05, 2011 |
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Choose a movie's plot -- while you watch it
Will Rona and Sol kiss and seal their fate as a couple forever, or will Sol answer the ringing phone and change the course of history? A new movie format developed by Tel Aviv University lets the viewer decide.
Technology / Hi Tech & Innovation
Dec 13, 2010 |
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List of search results for ring closure
