Temporal and spatial organization of chemical and hydrodynamic processes. The system Pb(2+)-chlorite-thiourea.

Precise spatio-temporal organization of chemical, hydrodynamic, and mechanical processes is typical for biological systems where particular chemical reactions have to accrue in precisely assignment place and time. It is rarely studied and observed in chemical systems. We report unusual precipitation pattern formation of PbSO(4) in chemical media (Pb(2+)-Chlorite-Thiourea System).

[Maintenance of anesthesia and intraoperative safety in dental implantology].

Most patients who need dental implantation suffer from somatic diseases. Therefore, an anesthesiologist's participation is highly desirable, since he supports the stability of vital functions. The authors used mixed anesthesia involving traditional field-block and general anesthesia.