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Nanotube Modeler Nanotube Modeler- A program for generating and visualizing the xyz-coordinates for nanotubes, nanocones, nanosheets, and fullerenes. For Windows; free demo version available. PyMolWiki PyMolWiki- User-contributed wiki to supplement the PyMOL documentation. UCSF Chimera UCSF Chimera- Highly extensible, interactive molecular graphics program. It is the successor to UCSF Midas and MidasPlus. Free of charge for academic, government, non-profit, and … Facio Facio- 3D-Molecular Modeling Software, available at no charge for the Windows platform. Has functions for visualization of biomolecules and results from GAMESS QM calculations, an… Protein Explorer Protein Explorer- A web-based viewer for the 3D structures of proteins, DNA and RNA. Requires Netscape and the Chime plugin, which is only available for Windows9x. MOLDEN MOLDEN- Pre- and post-processing program for molecular and electronic structure, with Z-matrix editor, electron density visualization, and molecule animations. Available for Unix … ChemCraft ChemCraft- Windows-based program for visualization of molecular structures, vibrational modes, molecular orbitals, energy gradient and other properties from log files produced by … SweetMollyGrace SweetMollyGrace- A suite of freeware tools for automating work of rendering and animating molecules. Generates high quality images of molecules from PDB, XYZ, or molfiles using ra… Viewmol Viewmol- An open-source graphical front end for computational chemistry programs such as Gaussian, Gamess, and Mopac. Available for Linux, FreeBSD, Mac OS X, and other Unices. Jmol Jmol- Open source molecule viewer written in Java. It runs as a standalone application and as a web browser applet. RasMol RasMol- Molecular visualization freeware for proteins, DNA, and macromolecules. Freely available for Windows, Macintosh, and UNIX. Biodesigner and iMol Biodesigner and iMol- A molecular viewer for Windows9x systems with sequence editor and protein builder. Free for academic use. Additionaly the iMol molecule viewer is available f… Labquip Labquip- Plastic molecular models for constructing polypeptides and DNA molecules. Molymod Molecular Models Molymod Molecular Models- Plastic molecular models for use in chemistry, biochemistry, molecular biology (DNA double helix), semiconductors and crystal lattice structures. VMD VMD- A free program for visualization and analysis of biological systems such as proteins, nucleic acids, and lipid bilayer assemblies. OpenRasMol OpenRasMol- Provided for the convenience of users and software developers of open source versions of RasMol. Historical Molecular Graphics Historical Molecular Graphics- Digitized versions of 16mm movies of molecular structures produced in the early days of interactive molecular graphics. Math Team Canada at the International Mathematical Olympiad Math Team Canada at the International Mathematical Olympiad- Information on past and future competitions, competing countries, exam problems and related materials. Vojtěch Jarník International Mathematical Competition Vojtěch Jarník International Mathematical Competition- Held at the University of Ostrava every year in March or April, open to university students. Contest rules, results, and pas… Mental Calculation World Cup Mental Calculation World Cup- Details of this international competition, and results from previous years. International Math Competition for University Students International Math Competition for University Students- Information on past and future competitions, contest results and problems. 11th meeting: Skopje, Macedonia; 23--29 July 200… IMO 2006 IMO 2006- 47th International Mathematical Olympiad, July 6-18, Ljubljana, Slovenia. Page includes program, regulations and travel arrangements. William Lowell Putnam Competition William Lowell Putnam Competition- An annual college math contest administered by The Mathematical Association of America. IMO 2001 IMO 2001- 42nd International Mathematical Olympiad, July 1-14, Washington DC, USA. Contains information and official results. Math Olympiad for Elementary Schools Math Olympiad for Elementary Schools- Contest open to all students grade 8 to 4. Offers resources for students and school mathematics clubs. Australian Primary Schools Mathematical Olympiads Inc. Australian Primary Schools Mathematical Olympiads Inc.- Open to primary schools in Australia, New Zealand and surrounding countries. IMO and Other Competitions IMO and Other Competitions- Past International Mathematical Olympiads and links to web sites related to various regional and national math competitions IMO Network IMO Network- Mailing lists for participants of the International Mathematical Olympiads. IMO 1997 IMO 1997- 38th International Mathematical Olympiad, Mar del Plata, Argentina. Contains problems, solutions, results. Rocket City Math League Rocket City Math League- International mail-in competition for avid students in mathematics.