Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Mitichkin, A."'
Interest to astrophysical evidence for primordial black holes (PBHs) formed in the early Universe from initial cosmological perturbations has increased after the discovery of coalescing binary black holes with masses more than dozen solar ones by gra
Externí odkaz:
http://arxiv.org/abs/2309.16246
Autor:
Postnov, Konstantin, Mitichkin, Nikita
We briefly discuss a possible cosmological implication of the observed binary black hole mergings detected by LIGO-Virgo-Kagra collaboration (GWTC-3 catalogue) for the primordial black hole (PBH) formation in the early Universe. We show that the bump
Externí odkaz:
http://arxiv.org/abs/2302.06981
Autor:
Postnov, Konstantin, Mitichkin, Nikita
We briefly discuss the most prominent results and specific sources detected by gravitational-wave observatories LIGO-Virgo during first three O1-O3 runs, as well as possible astrophysical and cosmological channels of their formation. We show that it
Externí odkaz:
http://arxiv.org/abs/2211.03142
Autor:
I. P. Dudanov, M. Yu. Podgornyak, O. A. Pavlov, M. S. Mitichkin, O. P. Verbitskii, V. A. Lazorkin
Publikováno v:
Вестник хирургии имени И.И. Грекова, Vol 182, Iss 2, Pp 11-19 (2023)
THE OBJECTIVE of the study was to study the causes and nature of traumatic brain injury in a metropolis and to form the principles of providing assistance to victims in a multidisciplinary hospital.METHODS AND MATERIALS. The analysis of a sequential
Externí odkaz:
https://doaj.org/article/f19ea6e60ded44d6b48d42e29d9fd7a2
Primordial black holes created in the early Universe can constitute a substantial fraction of dark matter and serve as seeds for early galaxy formation. Binary primordial black holes with masses of the order of a few dozen solar masses can explain th
Externí odkaz:
http://arxiv.org/abs/2101.02475
Autor:
Dolgov, A. D., Kuranov, A. G., Mitichkin, N. A., Porey, S., Postnov, K. A., Sazhina, O. S., Simkin, I. V.
Available data on the chirp mass distribution of the coalescing black hole binaries in O1-O3 LIGO/Virgo runs are analyzed and compared statistically with the distribution calculated under the assumption that these black holes are primordial with a lo
Externí odkaz:
http://arxiv.org/abs/2005.00892
Publikováno v:
Physics-Uspekhi vol. 62, No. 11, (2019)
Modern astrophysical methods of determination of spins of rotating stellar-mass black hole in close binaries and of supermassive black holes in active galactic nuclei are briefly discussed. Effective spins of coalescing binary black holes derived fro
Externí odkaz:
http://arxiv.org/abs/1907.04218
Autor:
Postnov, Konstantin, Mitichkin, Nikita
Publikováno v:
JCAP 06 (2019) 044
Primordial stellar-mass black holes, which may contribute to dark matter and to the observed LIGO binary black hole coalescences, are expected to be born with very low spins. Here we show that accretion mass gain by the components of a primordial bla
Externí odkaz:
http://arxiv.org/abs/1904.00570
Autor:
Shadrivova O.V., Rachina S.A., Strelkova D.A., Panchishina K.A., Gusev D.A., Vashukova M.A., Meshchaninova S.G., Zavrazhnov A.A., Mitichkin M.S., Mamonov A.G., Khostelidi S.N., Kozlova O.P., Gusarov V. G., Zamyatin M.N., Lovtsevich N.V., Kuleshov V.G., shagdileeva-ev., Oganesyan E., Desyatik E.A., Borzova Yu.V., Ignatyeva S.M., Vasilieva N.V., Klimko N.N.
Publikováno v:
Клиническая микробиология и антимикробная химиотерапия, Vol 24, Iss 4, Pp 295-302 (2022)
Objective. To study risk factors, clinical and radiological features and effectiveness of the treatment of invasive aspergillosis (IA) in adult patients with COVID-19 (COVID-IA) in intensive care units (ICU). Materials and Methods. A total of 60 pa
Externí odkaz:
https://doaj.org/article/8b6b542c06874b5f88841998645cc050
Autor:
Olga Kozlova, Ekaterina Burygina, Sofya Khostelidi, Olga Shadrivova, Andrey Saturnov, Denis Gusev, Aleksandr Rysev, Anatoliy Zavrazhnov, Maria Vashukova, Galina Pichugina, Mikhail Mitichkin, Sergey Kovyrshin, Tatiana Bogomolova, Yulia Borzova, Ellina Oganesyan, Natalya Vasilyeva, Nikolay Klimko, Working Group
Publikováno v:
Journal of Fungi, Vol 9, Iss 9, p 927 (2023)
We studied the risk factors, etiology, clinical manifestations, and treatment outcomes of COVID-19-associated invasive candidiasis (COVID-IC) in adult patients admitted to six medical facilities in St. Petersburg. (November 2020–December 2022). In
Externí odkaz:
https://doaj.org/article/8753377b11c145af9e5f4cd2346fc275