Effect of angular momentum distribution on gravitational loss-cone instability in stellar clusters around massive BH

Small perturbations in spherical and thin disk stellar clusters surrounding massive a black hole are studied. Due to the black hole, stars with sufficiently low angular momentum escape from the system through the loss cone. We show that stability properties of spherical clusters crucially depend on whether the distribution of stars is monotonic or non-monotonic in angular momentum. It turns out that only non-monotonic distributions can be unstable. At the same time the instability in disk clusters is possible for both types of distributions.Comment: 14 pages, 7 figures, submitted to MNRA

Mean field theory for global binding systematics

We review some possible improvements of mean field theory for application to nuclear binding systematics. Up to now, microscopic theory has been less successful than models starting from the liquid drop in describing accurately the global binding systematics. We believe that there are good prospects to develop a better global theory, using modern forms of energy density functionals and treating correlation energies systematically by the RPA.Comment: RevTex, 17 pages, 5 eps figures. To be published in Yadernaya Fizika, special edition for the 90th birthday of Professor A.B. Migda

Neurophysiological correlates of consciousness and cognitive functions in infants and preschool children

The study is devoted to electrophysiological markers of con-sciousness and cognitive functions in young children. The concepts of con-sciousness and definitions of the terms referring to the neonatal period are given.В статье рассматриваются электрофизиологические маркеры сознания и когнитивные функции у детей раннего возраста

Mild neurological dysfunction as a marker of cognitive and behavioral disorders in children

В статье рассматриваются признаки легкой неврологической дисфункции и их связи с основными показателями психомоторного развития у детей низкого риска развития заболеваний в возрасте от 2 до 4 лет.The aim of this study is to detect minor neurological dysfunction (MND) signs and their association with the main parameters of neurodeve-lopment in low-risk children at the ages of 2.5-4 years