Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Yu A Portnov"'
Autor:
S. Ye. Semyonov, M. G. Shatokhina, A. N. Nekhorosheva, A. A. Khromov, Ye. A. Zhuchkova, I. V. Moldavskaya, Yu. M. Portnov, A. V. Kovalenko, L. S. Barbarash
Publikováno v:
Бюллетень сибирской медицины, Vol 11, Iss 5, Pp 23-26 (2012)
CT and MR patterns of focal perfusion and diffusion disorder are compared in groups of patients with nonhemorrhagic venous and ischemic stroke, as well as in control group with chronic brain ischemia. The rMTT(+ vs. ++), rCBF (± vs. – –), rCBV (
Externí odkaz:
https://doaj.org/article/c7941fc47beb4833bfb28df766666b60
Publikováno v:
The Siberian Medical Journal. 34:85-91
Aim. To evaluate the effect of simultaneous surgical intervention on regional cerebral blood flow (CBF) based on single photon emission computed tomography (SPECT).Material and Methods. The study included 14 patients with hemodynamically significant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11eda170d5a6cc94a7abe573944161f1
https://doi.org/10.29001/2073-8552-2019-34-1-85-91
https://doi.org/10.29001/2073-8552-2019-34-1-85-91
Publikováno v:
The Siberian Medical Journal. 34:92-97
Aim. To assess the preoperative morphological state of the brain and the state of cerebral circulation in patients referred for coronary bypass surgery to identify predictors of long-term cerebral disorders.Material and Methods. The study included 33
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::811b5495af5a374cd7c489bf6b352e6c
https://doi.org/10.29001/2073-8552-2018-34-1-92-97
https://doi.org/10.29001/2073-8552-2018-34-1-92-97
Publikováno v:
SPACE, TIME AND FUNDAMENTAL INTERACTIONS. 2:18-27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52771c114edae1b53ea09f8181a6975e
https://doi.org/10.17238/issn2226-8812.2018.2.18-27
https://doi.org/10.17238/issn2226-8812.2018.2.18-27
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 832:012068
The article analyzes the use of new digital technologies in transport education considering the Moscow Automobile and Road Construction State Technical University (MADI) as an example. The results Massive Open Online Courses (MOOC) and other electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5731365d36e53ef4880d7d4104b7b037
https://doi.org/10.1088/1757-899x/832/1/012068
https://doi.org/10.1088/1757-899x/832/1/012068
Autor:
Yu. A. Portnov
Publikováno v:
Gravitation and Cosmology. 21:245-251
The recent research in the field of classical and quantum optics has allowed for establishing that an electromagnetic wave possesses not only energy and momentum but also angular momentum. The wave front of an electromagnetic wave having an angular m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38bd1c0d8ad76e167d44009ff62214b2
https://doi.org/10.1134/s020228931503010x
https://doi.org/10.1134/s020228931503010x
Autor:
Yu. A. Portnov
Publikováno v:
SPACE, TIME AND FUNDAMENTAL INTERACTIONS. 1:49-55
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a344ac282ee9c65993787f6221b6833
https://doi.org/10.17238/issn2226-8812.2015.1.49-55
https://doi.org/10.17238/issn2226-8812.2015.1.49-55
Autor:
Yu. A. Portnov
Publikováno v:
Gravitation and Cosmology. 17:152-160
For an unambiguous description of the position of a body in space, it is necessary to specify its three spatial coordinates, the time instant, and three coordinates which fix the body orientation in space. This work considers a seven-dimensional spac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706e3ba9f4defed94a000e4a4e10bcd7
https://doi.org/10.1134/s0202289311020186
https://doi.org/10.1134/s0202289311020186
Autor:
Yu. A. Portnov
Publikováno v:
Gravitation and Cosmology. 20:279-281
We consider the problem of obtaining the observed galaxy rotation curves using only luminous matter as a source of gravity. The basic idea is that any star belonging to a galaxy possesses both translational and rotational motion. On the basis of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab6b2c884dc21b4c6ab01f3607e829b
https://doi.org/10.1134/s0202289314040112
https://doi.org/10.1134/s0202289314040112
Autor:
Yu. A. Portnov
Publikováno v:
Gravitation and Cosmology. 16:75-77
We discuss the physical meaning of the nonmetricity vector. A relationship between the time derivative of the nonmetricity vector and the Hubble constant is revealed. On the basis of a solution to the equation for the nonmetricity field, it is conclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3138b6acb49c0a6f06f62c1e8a193c1
https://doi.org/10.1134/s0202289310010111
https://doi.org/10.1134/s0202289310010111