The release of dangerous contaminants to the atmosphere due to human activities is an extensively discussed issue (Oelkers & Cole 2008). The economic development often underestimated the consequences of a massive release of substances into the environment. Politic tried to introduce some regulation but in the case of CO2 emissions, the introduction of the “Carbon Tax” and the other attempts wer...

An efficient chiral squaramide-catalysed enantioselective Michael addition of pyrazolin-5-ones to nitroalkenes has been developed. This reaction afforded the chiral pyrazol-3-ol derivatives in high to excellent yields (up to >99%) with high enantioselectivities (up to 94% ee) for most substrates under very low catalyst loading (0.25 mol%). This catalytic asymmetric reaction provides valuable an...

Executive Summary ...................................................................... 1 Who Is Data Kinetics?................................................................... 1 Background of the Solution ........................................................... 1 The Proposed Solution .................................................................. 2 Implementing the Proposed Solution....

Executive Summary ...................................................................... 1 Who Is Data Kinetics?................................................................... 1 Background of the Solution ........................................................... 1 The Proposed Solution .................................................................. 2 Implementing the Proposed Solution....

This paper describes a simple means for embedding a checksum within a FITS header, providing a mechanism for later verifying the integrity of the FITS le. The method uses ASCII coded 32-bit 1's complement arithmetic to force the checksum of each FITS HDU to zero. This technique requires no extension of the FITS standard to be used by any given project, in fact the technique may be used to zero ...