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(1) MIT: New insights on fusion power

David Chandler, MIT News Office
December 3, 2008

Research carried out at MIT's Alcator C-Mod fusion reactor may have brought the promise of fusion as a future power source a bit closer to reality, though scientists caution that a practical fusion powerplant is still decades away.

Adapted from - http://web.mit.edu/newsoffice/2008/fusion-results-tt1203.html


(2)Disappearing superconductivity reappears -- in 2-D

Scientists studying a material that appeared to lose its ability to carry current with no resistance say new measurements reveal that the material is indeed a superconductor -- but only in two dimensions. Equally surprising, this new form of 2-D superconductivity emerges at a higher temperature than ordinary 3-D superconductivity in other compositions of the same material.

Adapted from - http://www.bnl.gov/bnlweb/pubaf/pr/PR_display.asp?prID=865

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October 26, 2008

ACD/ChemSketch 11.0 Freeware - Chemistry Freeware


Chemistry Freeware

ACD/ChemSketch 11.0 Freeware



"Visualize a chemically intelligent drawing interface that provides a portal to an entire range of analytical tools, and facilitates the transformation of structural or analytical data into professional, easy-to-decipher reports or presentations.

Advanced Chemistry Development, Inc., (ACD/Labs) has developed such an interface, and has integrated it with every desktop software module they produce. To date, over 800,000 chemists have incorporated ACD/Labs' chemical drawing and graphics package, ACD/ChemSketch, into their daily routines. Academic institutions worldwide have adopted this software as an interactive teaching tool to simplify and convey chemistry concepts to their students, and publishing bodies such as Thieme, the publisher of Science of Synthesis, consider it to be "...supportive of the organic chemistry publisher's role, both in the construction of compounds and their basic analysis."

ACD/ChemSketch is an advanced chemical drawing tool and is the accepted interface for the industry's best NMR and molecular property predictions, nomenclature, and analytical data handling software.

ACD/ChemSketch is also available as freeware, with functionalities that are highly competitive with other popular commercial software packages. The freeware contains tools for 2D structure cleaning, 3D optimization and viewing, InChI generation and conversion, drawing of polymers, organometallics, and Markush structures—capabilities that are not even included in some of the commercial packages from other software producers. Also included is an IUPAC systematic naming capability for molecules with fewer than 50 atoms and 3 rings. The capabilities of ACD/ChemSketch can be further extended and customized by programming.

The commercial version of ACD/ChemSketch offers additional capabilities above and beyond the freeware offering. It includes a number of advanced features including a dictionary of more than 158,000 trivial, common, and trade names with their corresponding structures. It allows the user to view SDfiles, and search Microsoft Word or Adobe PDF reports, SDfiles, molfiles, and CambridgeSoft ChemDraw files by chemical structure, substructure, or structure similarity.."*

* Ref - http://www.acdlabs.com/products/chem_dsn_lab/chemsketch/


Download Page - http://www.freechemsketch.com/


Note: ChemSketch 11.0 freeware is not compatible with other versions of free and commercial ACD/Labs software and should be installed separately.

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