The Golden Ratio : The Story of PHI, the World's Most Astonishing Number Molecular Biology of the Cell, Fourth Edition Modeling Derivatives in C++ (Wiley Finance) The Complete Idiot's Guide to Chemistry (Complete Idiot's Guide to...) The Secret Teachings of All Ages (Reader's Edition) The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics (Popular Science) The Ancient Secret of the Flower of Life: Volume 1 Kaplan AP Biology 2005 (Kaplan AP Biology) Goodman & Gilman's The Pharmacological Basis of Therapeutics

• ;abr=!NN2;sz=468x60;ord=990917?"> ;abr=!NN2;sz=468x60;ord=990917?" BORDER="0" WIDTH=468 HEIGHT=60> Self-assembly: Icosahedral bilayers.
• Now a new type of self-assembled bilayer organization is demonstrated: hollow aggregates of regular icosahedral shape formed at certain compositions in salt-free mixtures of anionic and cationic surfactants (catanionics). ...

• Books : Icosahedral Galois Representations (Lecture Notes in Physics).

• Molecular architecture and mechanism of an icosahedral pyruvate dehydrogenase complex: a multifunctional catalytic machine.
• Figure 2 (A) An image recorded from a frozen–hydrated specimen of the icosahedral E2 inner core consisting of 60 acetyltransferase domains. ...
• Three E1 tetramers (in purple) are shown located above the corresponding trimer of E2 catalytic domains in the icosahedral core. ...

• Icosahedral-Dodecahedral structure of the Universe.
• The regular icosahedron is geometric object, which form are used by viruses, that is, the icosahedral form and pentagonal symmetry are fundamental in organization of living material.
• The discovery of the quasi-crystals (based on the regular icosahedron) made in 1984 by Israeli physicist Dan Shechtman (in more details about this discovery we will tell later) became the outstanding event in modern physics, as this discovery shown that the "pentagonal" symmetry and the icosahedral form play also a fundamental role in crystallography.

• Truncated Icosahedral Symmetry.

• Chris Roper's Icosahedral Homepage.

• Icosahedral Virus Reconstruction.

• Icosahedral Reconstruction Theory Principles behind the icosahedral reconstruction programs.
• If my reconstruction looks icosahedral, does that mean that it is right? .
• Icosahedral Reconstruction and Cryo-electron Microscopy.
• This approach has been most powerful when applied to icosahedral particles because of their very high symmetry symmetry (point group 532 - 6 five fold axes, 10 three fold axes and 15 two fold axes for a total of 60 symmetry elements). ...
• Icosahedral reconstruction from cryo-electron micrographs nicely complements X-ray crystallographic structure determinations. ...
• This discussion focuses on the modifications to the icosahedral reconstruction programs made over the past decade to allow their use for cryo-electron micrographs. ...
• The central problem in performing an icosahedral reconstruction is the reliable determination of the orientation of the individual particles. A particle of unknown structure is oriented on the basis of its icosahedral symmetry (Figure 1 - steps 1,2). ...
• The determination of the orientation of a novel icosahedral particle is based on the symmetry elements. ... Our standard icosahedral asymmetric unit is the one sixtieth of orientation space shown in Figure 1 which is bounded by two five folds (for example 90o,31. ...
• The power of this approach for icosahedral objects comes from the fact that the high symmetry of the icosahedron gives rise to 37 pairs of common lines: each of the 6 five folds gives rise to two pairs (from 2p/5,-2p/5 and 4p/5,-4p/5), each of the 10 three-folds generates 1 pair (2p/3,-2p/3) and each of the 15 two folds a further pair (p,-p) which lie along the projection of the two-fold symmetry axis. ...
• Since the BG expansion is over cylindrical rather than icosahedral coordinates, the resulting map will NOT have exact icosahedral symmetry and, in extreme cases, will resemble a badly distorted bowler hat. ...
• The symmetry of the expansion functions is 52 and hence the three fold symmetry elements of icosahedral (or 532) symmetry are not imposed on the reconstruction. ... Full icosahedral symmetry can be imposed by real space averaging of the map by the program symmetrize This averaging increases the signal-to- noise within the map.
• The icosahedral sampling of the data forces such a reconstruction to be icosahedral but the eigenvalue spectrum will indicate that it is poorly determined and artifact rich as a result. Such a reconstruction can never serve as evidence for the icosahedral nature of the particle, but it can be useful in classifying particles or generating models for further orientation searches. ...

• MD Simulation of Roughening Transition of Icosahedral Gold Cluster.
• Preparation of icosahedral gold cluster.
• A liquid gold sphere with 2624 atoms has been cooled down to 100K to obtain a faceted icosahedral gold cluster. ...
• This may suggest that surface atoms travel around freely but still keeping the relative positions with neighbor atoms to form the icosahedral structure, which is different from liquid. ...

• Herpesviruses have an envelope surrounding an icosahedral capsid, approximately 100nm in diameter, which contains the dsDNA genome. ...

• Aperiodicity and Order: Extended Icosahedral Structures.
• Look for books like Aperiodicity and Order: Extended Icosahedral Structures by subject:.
• Top of Page : Aperiodicity and Order: Extended Icosahedral Structures .

• Nature may well seek to optimise itself icosahedrally: recently an icosahedral structure to water has been suggested by Chaplin.

Do you have a great site about Icosahedral? Is your Icosahedral site listed here? Would you like a prefered placement of your site in this directory?

It's easy! First place, the HTML from the box below on your page that you would like listed in this directory.

Then use our link submission request with your name, your contact information, and the URL of your site that has a link to this directory. After we verify your link to us, we'll make sure your site stays in our directory, and we'll give it prefered placement here also.

Here is how to make a simple text link to us. Just copy the code in this box to your website:

We can also develop a custom Guide To The Internet for your site. Please request your own custom Guide To The Internet.