[Enhanced structural transformations in DNA macromolecules exposed to weak thermalized neutron field].

We examined now an ultraweak thermalized neutron field (UTNF) affects the structural transformation in DNA macromolecules at room temperature. IR-spectroscopy, electrophoresis, and filtration through nitrocellulose filter measurements revealed that UTNF irradiation with a fluence of F(n) - 1.0 - 3.

[Features of spectral structure of tremor in children 5-6 years of age in health and in some neuromuscular diseases].

The paper shows the informative value of a tremor signal to detect abnormalities in the formation of the neuromuscular system. Recording of the tremor signal was made with a piezoaccelerometric transducer, followed by its spectral analysis. The results of examinations of healthy children and children with various abnormalities were presented and discussed.

[The micro- and macrovascular reactivity of the arterial bed in renovascular hypertension in rats].

In rats with experimental hypertension, mesenteric artery revealed a hypersensitivity to noradrenaline whereas aorta did not differ from normal values of this parameter. The sensitivity of femoral artery was lowered. The microarterioles of hypertensive animals manifested a lower sensitivity to noradrenaline as well.