Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Anatoly S. Karavaev"'
Autor:
Anton R. Kiselev, Olga M. Posnenkova, Anatoly S. Karavaev, Vladimir A. Shvartz, Mikhail Yu. Novikov, Vladimir I. Gridnev
Publikováno v:
Biomedicines, Vol 12, Iss 9, p 2088 (2024)
Objective—Heart rate variability (HRV) and photoplethysmographic waveform variability (PPGV) are available approaches for assessing the state of cardiovascular autonomic regulation. The goal of our study was to compare the frequency-domain features
Externí odkaz:
https://doaj.org/article/3b7d62e02b574b169a40c63d6ca4a9dd
Autor:
Anton R. Kiselev, Elena N. Mureeva, Viktoria V. Skazkina, Olga S. Panina, Anatoly S. Karavaev, Yuri V. Chernenkov
Publikováno v:
Life, Vol 14, Iss 6, p 675 (2024)
Background: Features of cardiovascular autonomic regulation in infants are poorly studied compared with adults. However, the clinical significance of autonomic dysfunction in infants is very high. The goal of our research was to study the temporal an
Externí odkaz:
https://doaj.org/article/3c881e36bcf44fb48b46fcfe403f9dc4
Autor:
Ekaterina I. Borovkova, Vladimir I. Ponomarenko, Anatoly S. Karavaev, Elizaveta S. Dubinkina, Mikhail D. Prokhorov
Publikováno v:
Mathematics, Vol 11, Iss 24, p 4903 (2023)
We propose for the first time a method for extracting the instantaneous phases of respiration from the signal of a photoplethysmogram (PPG). In addition to the instantaneous phases of respiration, this method allows for more accurately extracting the
Externí odkaz:
https://doaj.org/article/8493a745d8674eba97b6d1a5ee798884
Autor:
Mikhail D. Prokhorov, Ekaterina I. Borovkova, Aleksey N. Hramkov, Elizaveta S. Dubinkina, Vladimir I. Ponomarenko, Yurii M. Ishbulatov, Alexander V. Kurbako, Anatoly S. Karavaev
Publikováno v:
Applied Sciences, Vol 13, Iss 14, p 8390 (2023)
A change in the human psychophysiological state, caused by stress in particular, affects the processes of autonomic control, the activity of which is reflected in infra-slow oscillations of brain potentials with a frequency of less than 0.5 Hz. We st
Externí odkaz:
https://doaj.org/article/f44574cfd8f44c7986d045e2f959eeca
Autor:
Anton R. Kiselev, Anatoly S. Karavaev
Publikováno v:
Blood Pressure, Vol 29, Iss 1, Pp 55-62 (2020)
Background: It is believed that the intensity of oscillations in the photoplethysmographic waveform variability reflects the activity of vascular regulatory mechanisms. However, the relationship of such fluctuations with the state of health is poorly
Externí odkaz:
https://doaj.org/article/edf31120fbc242898ea6f5c20e7d87a8
Autor:
Anatoly S. Karavaev, Viktoriia V. Skazkina, Ekaterina I. Borovkova, Mikhail D. Prokhorov, Aleksey N. Hramkov, Vladimir I. Ponomarenko, Anastasiya E. Runnova, Vladimir I. Gridnev, Anton R. Kiselev, Nikolay V. Kuznetsov, Leonid S. Chechurin, Thomas Penzel
Publikováno v:
Frontiers in Neuroscience, Vol 15 (2022)
The influence of higher nervous activity on the processes of autonomic control of the cardiovascular system and baroreflex regulation is of considerable interest, both for understanding the fundamental laws of the functioning of the human body and fo
Externí odkaz:
https://doaj.org/article/0cd2d29b685542b2bb8105a65f208176
Autor:
Anatoly S. Karavaev, Yurii M. Ishbulatov, Mikhail D. Prokhorov, Vladimir I. Ponomarenko, Anton R. Kiselev, Anastasiia E. Runnova, Alexey N. Hramkov, Oxana V. Semyachkina-Glushkovskaya, Jürgen Kurths, Thomas Penzel
Publikováno v:
Frontiers in Physiology, Vol 11 (2021)
We propose a mathematical model of the human cardiovascular system. The model allows one to simulate the main heart rate, its variability under the influence of the autonomic nervous system, breathing process, and oscillations of blood pressure. For
Externí odkaz:
https://doaj.org/article/6b1807ab71c84b38a561b5fa0d4310dd
Autor:
Viktoriia V. Skazkina, Anatoly S. Karavaev, Ekaterina I. Borovkova, Margarita A. Simonyan, Mikhail D. Prokhorov, Vladimir I. Ponomarenko, Elizaveta S. Dubinkina, Boris P. Bezruchko, Vladimir I. Gridnev, Anton R. Kiselev
Publikováno v:
Russian Open Medical Journal, Vol 9, Iss 4, p e0403 (2020)
The purpose of this work is to study the interaction between the autonomic regulatory loops of blood circulation from long time series. Methods ― We simultaneously recorded four-hour signals of electrocardiogram and photoplethysmogram from the ear
Externí odkaz:
https://doaj.org/article/0ee0369bcb6e41bda45a33c4183ca565
Autor:
Yurii M. Ishbulatov, Tatiana S. Bibicheva, Vladimir I. Gridnev, Mikhail D. Prokhorov, Marina V. Ogneva, Anton R. Kiselev, Anatoly S. Karavaev
Publikováno v:
Mathematics, Vol 10, Iss 7, p 1088 (2022)
Irregularity is an important aspect of the cardiovascular system dynamics. Numerical indices of irregularity, such as the largest Lyapunov exponent and the correlation dimension estimated from interbeat interval time series, are early markers of card
Externí odkaz:
https://doaj.org/article/22789c03b9264154a4f7ef0cec0bd2d2
Autor:
Yurii M. Ishbulatov, Viktoriia V. Skazkina, Anatoly S. Karavaev, Olga A. Inozemtseva, Daniil N. Bratashov, Arkady S. Abdurashitov, Oleg V. Grishin, Alexey N. Hramkov, Vladimir P. Zharov
Publikováno v:
Russian Open Medical Journal, Vol 9, Iss 2, p e0209 (2020)
Background ― The treatment of the cancer, especially in more aggressive metastatic forms is more effective at early disease stage. However, existing diagnostic techniques are not sensitive enough for early cancer detection. An alternative, perspect
Externí odkaz:
https://doaj.org/article/d7125f6c06db409fa96353481a6b1a1e