Word: electrones
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
When massive stars explode as supernovas, for example, they create a periodic table's worth of radioactive elements, some of which decay into antielectrons, known as positrons. A black hole, scientists believe, can also produce electron-positron pairs by superheating the material that spirals into its gravitational sinkhole. It was the radiation produced by annihilating positrons and electrons, not the antimatter itself, that was actually observed by Purcell at Northwestern and his collaborators at the Naval Research Laboratory in Washington...
Huber's speech, "Structure and Function of Large Proteins and Protein Assemblies by X-Ray Crystallography and Electron Microscopy," was the 1997 Max Tishler Prize Lecture, established in 1951 by an award from the Merck Sharp & Dohme Company...
Diagramming the method for separating a mouse into its components, Huber suggested the use of tomography, electron microscopy, biochemical analysis, crystal decoration, X-ray crystallography and nuclear magnetic resonance (NMR) imaging for high-resolution, atomic detail...
Huber described the work his research group has done with several protein structures, emphasizing the complementarity of relatively low-resolution electron microscopy and high-resolution X-ray crystallography...
...Electron microscopy helps to overcome the phase problem [of crystallography], providing the initial picture that is sufficient for carrying out the [X-ray] high resolution studies," Huber said...