Precise control of thedistribution of specific proteins is essential for many biological processes. An LMU team has now described a new model for intracellular pattern formation. Here, the shape of the cell itself plays a ...
A two-dimensional representation of a Klein bottle--a shape with no inside or outside, just one continuous surface. A true Klein bottle needs at least four dimensions; in other words, it can't be blown from glass. Two- and three-dimensional representations like this one exist to help us visualize the topology, but they are not completely faithful to the original shape. The surface cannot be built in two- or three-dimensional space without self-intersection, as shown here with the "handle" passing through the side of the surface.
Credit: Thomas Banchoff, Brown University, and Davide Cervone, Union College.
Since 1971, the Protein Data Bank archive (PDB) has served as the single repository of information about the 3D structures of proteins, nucleic acids, and complex assemblies.
The Worldwide PDB (wwPDB) organization manages the PDB archive and ensures that the PDB is freely and publicly available to the global community.
OptiStruct is an industry proven, modern structural analysis solver for linear and nonlinear problems under static and dynamic loadings. It is the market-leading solution for structural design and optimization.
S. Schlickum, H. Sennefelder, M. Friedrich, G. Harms, M. Lohse, P. Kilshaw, and M. Schon. Blood, 112 (3):
619-25(August 2008)Schlickum, Stephanie Sennefelder, Helga Friedrich, Mike Harms, Gregory
Lohse, Martin J Kilshaw, Peter Schon, Michael P Research Support,
Non-U.S. Gov't United States Blood Blood. 2008 Aug 1;112(3):619-25.
Epub 2008 May 20..
T. Sederberg, P. Gao, G. Wang, and H. Mu. Proceedings of the 20th annual conference on Computer graphics and interactive techniques, page 15--18. New York, NY, USA, ACM, (1993)
T. Sederberg, and E. Greenwood. Proceedings of the 19th annual conference on Computer graphics and interactive techniques, page 25--34. New York, NY, USA, ACM, (1992)
X. Wu, and J. Johnstone. Computational Science and Its Applications - ICCSA 2006, volume 3980 of Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2006)
D. Xu, H. Zhang, Q. Wang, and H. Bao. Proceedings of the 2005 ACM symposium on Solid and physical modeling, page 267--274. New York, NY, USA, ACM, (2005)