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Hackerství je stále nebezpečnější hrozbou naší civilizace. S rostoucí rolí, kterou hraje internet v organizaci společnosti, komunikacích, hospodářském životě a technologických systémech, roste také nebezpečí jeho zneužití či napadení. Svět již zažil vykrádání bank, vydírání nemocnic, umlčení politických oponentů, odstavení serverů hospodářské konkurence, ovlivňování voleb i vypnutí dodávek elektřiny v rozsáhlých regionech.
Jsme svědky toho, jak se internet stává polem nejen finanční kriminality, ale i nebezpečných útoků...

Since the early investigations by Berthelot (1862) and N A Menshutkin (1887) the solvent effects on the chemical reaction rate is an object of regard for chemists. Primarily, solvents were considered as reaction media, and attempts were made to explain sol

Presents information about creation of models of solvent influence on solute behaviour. This book explains linear free energy (LFE) relationships in chemistry of solutions and application of LFE in chemical kinetics.

The behavior of substances in solutions may not be adequately characterized by the effect of any single physicochemical parameter of solvents, nor are numerous semi-empirical scales of the solvent effect (their a polaritya ) suitable for their limited selections only. In recent decades, it has been found that the variation of reaction rate constants in solutions or that spectral parameters of dissolved substances are determined by the total effect of different solvation processes. This monograph presents numerous examples of such an approach and characterizes various empirical and...

This book explores the chemical processes of the radical polymerisation of different vinyl monomers, initiated vulcanisation of rubbers and curing of the polyester resins.