[Current problems of microbial safety of the interior environment of orbital stations after extended period of operation].

The authors give considerations to one of the core hygienic problems arising in the process of long-term operation of orbital stations, i.e. ensuring microbial health of the milieu interior.

[Electroencephalographic analysis of the central action of halonal].

The experiments on rabbits revealed the depressant effect of anticonvulsant drug halonal on spontaneous bioelectrical activity and electroexcitability of the motor area of the cerebral cortex, caudate nucleus, intralaminar nuclei of the thalamus and midbrain reticular formation. The drug exerts no effect on the amygdala and hippocamp. The mechanism of the anticonvulsant effect of halonal involves inhibition of the caudo-thalamo-cortical synchronizing system that presumably disorders the occurrence of the hypersynchronous charge in the cortical neurons and prevents the development of a convulsive fit.

[Characteristics of the functional antigens of Neisseria meningitidis group B].

The work deals with the characterization of the functional antigens of N. meningitidis, group B. Analysis of the total extract of N.