Nonconventional synchronization and energy localization in weakly coupled autogenerators.

The present work follows our previous study dealing with a new type of synchronization in a system of two weakly coupled generalized van der Pol-Duffing autogenerators. The essence of the effect revealed is that the synchronized oscillations are not stationary but accompanied by the most intensive energy exchange between the oscillators. The phase shift between the generators remains constant most of the time, except for vanishingly small transitional intervals.

[The differential diagnosis of the main forms of paroxysmal tachycardias and tachyarrhythmias].

A study is presented of 150 in-patients with paroxysmal tachycardias and tachyarrhythmias. Urgent management was carried out using a diagnostic algorithm designed by the authors that helped to establish early diagnosis using clinical adequate rational methods. Identification of clinico-pathogenetic form was realized in 95% of patients.