Coherent chemistry and biochemistry. A.L. Buchachenko. Ross. Khim. Zhurn. (Zhurn. Ross. Khim. ob-va im. D.I. Mendeleeva), 2009, v. 53, № 6. The paper presents analysis of coherent processes in chemistry at all its levels. Electronic, vibrational, electron-spin, nuclear-spin and macroscopic coherencies are considered; physical backgrounds of coherent phenomena as well as their chemical consequences are also discussed. Dissipative patterns in systems of diffusively coupled nano- and micro-oscillators. V. K. Vanag. Ross. Khim. Zhurn. (Zhurn. Ross. Khim. ob-va im. D.I. Mendeleeva), 2009, v. 53, № 6. In spatially extended classical Belousov-Zhabotinsky (BZ) reaction, trigger spiral or concentric waves usually occur. If the BZ reaction is dispersed into nanodroplets of water-in-oil emulsion, new patterns are observed such as standing waves, anti-spirals, oscillons, dash-waves, jumping waves, Turing patterns, and other. If the size of water droplets is increased up to tens of micrometers, coupled micro-oscillators produce new stationary and oscillatory discrete dissipative patterns. In the review, comparative analysis of these patterns is done and a possibility of creating a chemical computer on the basis of dissipative patterns is discussed.