[Dependence of mode of DNA binding to benzo crown derivatives of actinocin on the size and distance from the chromophore of crown fragments].

Complexes of DNA with benzocrown derivatives of actinocin were studied by viscometry and dynamic birefringence. Changes in the macromolecular structure of DNA caused by complex formation were determined. Models of DNA binding to the studied compounds were suggested on the basis of data obtained.

[Interaction of DNA with benzocrown derivatives of actinocin].

Complexes of DNA with actinocin derivatives containing benzocrown groups at the 1 and/or 9 positions of the chromophore were studied by spectrophotometric titration and circular dichroism. The actinocin chromophore and the crown fragments are the binding sites of the ligands with DNA. The mode of ligand-DNA binding is shown to depend on the size of the crown group, its distance to the actinocin chromophore, and the ionic strength of the medium.

[Orienting-exploratory behavior: a comparative analysis of the synanthropic and wild-living forms of house mice of the superspecies complex Mus musculus s. lato].

Studies of protein polymorphism, restriction of mitochondrial DNA and karyology revealed two large, divergent groups in Mus musculus s. lato. The first group includes the commensal forms M.

[Cryotherapy of postburn hypertrophic scars].

A technique for cryotherapy of the postburn hypertrophic scars, and a method for protection of the surrounding tissues from damaging effect of the low temperatures have been suggested. In 76.4% of patients, a good cosmetic result has been obtained.