Zobrazeno 1 - 10
of 17
pro vyhledávání: '"S. A. Rutkevich"'
Autor:
S. B. Rutkevich
Publikováno v:
Advances in Mathematical Physics, Vol 2018 (2018)
The spectral properties of two special classes of Jacobi operators are studied. For the first class represented by the 2M-dimensional real Jacobi matrices whose entries are symmetric with respect to the secondary diagonal, a new polynomial identity r
Externí odkaz:
https://doaj.org/article/e0e13472219644a49f778b112920010c
Publikováno v:
Bulletin of Experimental Biology and Medicine. 147:281-284
Experiments were performed on rats anesthetized with urethane and nembutal. Intrathecal administration of a nitric oxide inhibitor L-NAME (60 mg) into the cerebrospinal fluid of the thoracic spinal cord was followed by a 40-45% decrease in tonic acti
Publikováno v:
Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994). 57(5)
Autor:
P B, Tsyv'ian, V S, Markhasin, O E, Solov'eva, S M, Rutkevich, Iu L, Protsenko, O G, Artem'eva, E A, Shcroder, B B, Keller
Publikováno v:
Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 87(7)
Parameters of the contraction-relaxation cycle and mechanical restitution (MR) were assessed in isolated ventricular preparations of 3- and 4-day chick embryos (EM) and posthatched (PH) chicks. Ryanodine reduced the relaxation rate in the EM but incr
Publikováno v:
Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 84(12)
Isometric contractions and force-frequency relationships (FFR) were assessed in isolated ventricular preparations of 3- and 4-day chick embryos (EM) and posthatched (PH) chicks. Pacing protocols for the FFR assessment were applied in normal buffer, b
Publikováno v:
Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 84(1-2)
Autor:
A. G. Chumak, S. A. Rutkevich
Publikováno v:
Neurophysiology. 38:312-313
Activation of “silent” efferent fibers due to stimulation of the mesenteric nerve within a definite frequency range is described; the effect is supposed to result from sensitization in reflex circles related to visceral pain.
Publikováno v:
Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 83(7)
Publikováno v:
Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 83(4)
Autor:
S. M. Rutkevich, V. I. Shumakov, Itkin Gp, V. M. Shevelev, V. Ya. Izakov, A. N. Shepelenko, E. Sh. Shtengol'd, Kuvaev Ae
Publikováno v:
Bulletin of Experimental Biology and Medicine. 87:533-536
The possibility of using the atrial myocardium to control artificial ventricles is examined. Correlation was studied between the tension of the atrial wall and the tension and pressure in the ventricles during random variation of the cardiac rhythm w