FAVOR (FAst Variability Optical Registration) -- A Two-telescope Complex for Detection and Investigation of Short Optical Transients

An astronomical complex intended to detect optical transients (OTs) in a wide field and follow them up with high time resolution investigation is described.Comment: 4 pages, 3 figures. To be published in "Il Nuovo Cimento", Proceedings of the 4th Rome Workshop on Gamma-Ray Bursts in the Afterglow Era, eds. L. Piro, L. Amati, S. Covino, B. Gendr

Відповідальність слідчих за результати своєї діяльності

Каткова, А. Г. Відповідальність слідчих за результати своєї діяльності / А. Г. Каткова, П. М. Сивуляк // Вісник Національного університету внутрішніх справ. - 2004. - Вип. 25. - С. 110-116.Розкрито відповідальність слідчих за результати своєї діяльності. Раскрыта ответственность следователей за результаты своей деятельности. The responsibility of investigators for the results of their activities has been revealed

Association of depression with atrial fibrillation in patients with arterial hypertension

The objective: Studying the relationship between depression and atrial fibrillation (AF) in patients with arterial hypertension (AH). Material and methods: A total of 69 women aged over 57 with arterial hypertension stage II-III were examined. The subjects were distributed: 1st group - 35 women with sinus rhythm, the second - 34 women with AF. Quantitative data with a normal distribution were assessed using Student's t-test. In assessing the psychological status, the hospital anxiety and depression HADS scale were used. The qualitative variables were compared using Pearson's ии test. The association of the level of depression with AF was estimated by calculating the odds ratios (OR) and their 95% confidence intervals (CI). In order to detect hidden, common factors explaining the relationship between depression and AF, a factor analysis was performed. Results: The frequency of clinically severe depression in the group of patients with AF was significantly higher (ии, p = 0.003). The assessment of the effect of depression on the development of AF in patients with a subclinical level of depression, OR was 0.76 (with 95% CI from 0.26 to 2.26; p> 0.05), in patients with clinically pronounced levels of depression - 9.0 (with 95% CI from 1.88 to 44.18; p 0,05), у больных с клинически выраженным уровнем депрессии - 9,0 (при 95% ДИ от 1,88 до 44,18; p<0,05). При проведении факторного анализа установлено, что депрессия, вносит свой вклад в развитие ФП у больных с АГ. Заключение: При оценке психологического статуса у женщин, больных АГ в сочетании с ФП, клинически выраженная депрессия наблюдалась у 35,3% больных. Шанс встретить ФП среди больных с клинически выраженной депрессией в 9 раз выше, чем среди больных с субклинической депрессией. Факторный анализ показал, что в 7,01% случаев депрессия вносит свой вклад в развитие ФП у больных с АГ

Transition from Fireball to Poynting-flux-dominated Outflow in Three-Episode GRB 160625B

The ejecta composition is an open question in gamma-ray bursts (GRB) physics. Some GRBs possess a quasi-thermal spectral component in the time-resolved spectral analysis, suggesting a hot fireball origin. Others show a featureless non-thermal spectrum known as the "Band" function, consistent with a synchrotron radiation origin and suggesting that the jet is Poynting-flux-dominated at the central engine and likely in the emission region as well. There are also bursts showing a sub-dominant thermal component and a dominant synchrotron component suggesting a likely hybrid jet composition. Here we report an extraordinarily bright GRB 160625B, simultaneously observed in gamma-rays and optical wavelengths, whose prompt emission consists of three isolated episodes separated by long quiescent intervals, with the durations of each "sub-burst" being $\sim$ 0.8 s, 35 s, and 212 s, respectively. Its high brightness (with isotropic peak luminosity L$_{\rm p, iso}\sim 4\times 10^{53}$ erg/s) allows us to conduct detailed time-resolved spectral analysis in each episode, from precursor to main burst and to extended emission. The spectral properties of the first two sub-bursts are distinctly different, allowing us to observe the transition from thermal to non-thermal radiation between well-separated emission episodes within a single GRB. Such a transition is a clear indication of the change of jet composition from a fireball to a Poynting-flux-dominated jet.Comment: Revised version reflecting the referees' comments. 27 pages, 11 figures, 5 tables. The final edited version will appear in Nature Astronom

Difficulties in managing a young child with recurrent bronchoobstructive syndrome

The aim of the study – demonstration of the difficulties in the diagnosis of diseases in the management of a patient of early childhood in the presence of recurrent bronchial obstruction.Цель исследования – продемонстрировать трудности в диагностике заболеваний при ведении пациента раннего детского возраста при наличии у него повторяющихся бронхообструкций

Использование результатов радиационного мониторинга окружающей среды для контроля источника выбросов йода-131 предприятием

The analysis was performed, whether the following characteristics correspond with each other: data on the annual release of the radionuclide by the enterprise, the calculation model used for establishing the annual permissible release levels of radionuclides, and the annual average volume activity of the radionuclide, determined using the data of routine radiation monitoring of the surface air. Such analysis was carried out for the release of 131I from the L.Ya. Karpov Scientific Research Institute of Physics and Chemistry (Obninsk) in 2013–2022. It is shown that for the enterprise release in 2013–2022, the results of environmental radiation monitoring confirm both the data of radiation control of the 131I release source and the correctness of the radionuclide air transfer calculation model. The average annual meteorological dilution factor of the 131I for the enterprise release in the surface layer of the atmosphere, estimated from monitoring data, does not exceed the model calculated value. Strong correlation was revealed between the average annual volume activity of 131I in the surface air, obtained using measurement results, and data on annual air releases of the enterprise. No correlation was found for the variability of the dilution factor estimated by the transfer model and monitoring data. It may be caused by the heterogeneity of the 131I releases by the enterprise during the year.Выполнен анализ взаимного соответствия данных о годовом выбросе радионуклида предприятием, расчетной модели переноса примеси, использующейся при установлении нормативов предельно допустимых выбросов, и среднегодовой объемной активности радионуклида, определенной с использованием данных радиационного мониторинга приземного слоя воздуха, на примере выброса 131I акционерным обществом «Научно-исследовательский физико-химический институт им. Л.Я. Карпова» (г. Обнинск). Показано, что для выброса предприятия в 2013–2022 гг. результаты радиационного мониторинга окружающей среды подтверждают как данные радиационного контроля источника выброса 131I, так и адекватность расчетной модели переноса примеси. Среднегодовой метеорологический фактор разбавления выброса 131I предприятием в приземном слое атмосферы, оцененный с использованием данных мониторинга, не превышает значение, полученное с помощью модели расчета переноса примеси. Выявлена сильная корреляция среднегодовой объемной активности 131I в приземном воздухе, полученной с использованием результатов измерений, и данных радиационного контроля годовых выбросов предприятия. Отсутствует корреляция изменчивости фактора разбавления по расчетным оценкам и данным мониторинга, что может быть связано с неоднородностью выброса 131I предприятием в течение года

Transition from fireball to Poynting-flux-dominated outflow in the three-episode GRB 160625B

The ejecta composition is an open question in gamma-ray burst (GRB) physics . Some GRBs possess a quasi-thermal spectral component in the time-resolved spectral analysis , suggesting a hot fireball origin. Others show a featureless non-thermal spectrum known as the Band function , consistent with a synchrotron radiation origin and suggesting that the jet is Poynting-flux dominated at the central engine and probably in the emission region as well . There are also bursts showing a sub-dominant thermal component and a dominant synchrotron component , suggesting a probable hybrid jet composition . Here, we report an extraordinarily bright GRB 160625B, simultaneously observed in gamma-ray and optical wavelengths, whose prompt emission consists of three isolated episodes separated by long quiescent intervals, with the durations of each sub-burst being approximately 0.8 s, 35 s and 212 s, respectively. Its high brightness (with isotropic peak luminosity L ≈ 4 × 10 erg s) allows us to conduct detailed time-resolved spectral analysis in each episode, from precursor to main burst and to extended emission. The spectral properties of the first two sub-bursts are distinctly different, allowing us to observe the transition from thermal to non-thermal radiation between well-separated emission episodes within a single GRB. Such a transition is a clear indication of the change of jet composition from a fireball to a Poynting-flux-dominated jet.B.-B.Z. thanks Y.-Z. Fan, Y.-Z. Wang, H. Wang, K. D. Alexander and D. Lazzati for helpful discussions. We are grateful to K. Hurley, I. Mitrofanov, A. Sanin, M. Litvak and W. Boynton for the use of Mars Odyssey data in the triangulation. We acknowledge the use of the public data from the Swift and Fermi data archives. B.-B. Z. and A.J. C.-T. acknowledge support from the Spanish Ministry Projects AYA2012-39727-C03-01 and AYA2015-71718-R. Part of this work made use of B.-B.Z.'s personal Interactive Data Language (IDL) code library ZBBIDL and personal Python library ZBBPY. The computation resources used in this work are owned by Scientist Support LLC. B.Z. acknowledges NASA NNX14AF85G and NNX15AK85G for support. Z. G. D. acknowledges the National Natural Science Foundation of China(NSFC) (grant 11573014). Y.-D. H. acknowledges support by China Scholarships Council (grant 201406660015). Mini-MegaTORTORA belongs to Kazan Federal University, and the work is performed according to the Russian Government Program of Competitive Growth of Kazan Federal University. A. P., E.M., P. M. and A.V. are grateful to the Russian Foundation for Basic Research (grant 17-02-01388) for partial support. A. P. and S.B.P. acknowledge joint BRICS (Brazil, Russia, India, China and South Africa) grant RFBR 17-52-80139 and 388-ProFChEAP for partial support. R. I. is grateful to grant RUSTAVELI FR/379/6300/ 14 for partial support. Observations on Mini-MegaTORTORA are supported by the Russian Science Foundation (grant 14-50-00043). A.V.F. and A. M. thank the Russian Science Foundation (grant 14-50-00043). L.M. and A.F.Z. acknowledge support from INTA-CEDEA ESAt personnel hosting the Pi of the Sky facility at the BOOTES-1 station. H. G. and X.-Y.W. acknowledge NSFC (grants 11603003 and 11625312, respectively). Z. G. D., X.-F. W., B.Z., X.-Y. W.,L.S. and F.-W.Z. are also supported by the 973 program (grant 2014CB845800). F.-W.Z. is also supported in part by the NSFC (grants U1331101 and 11163003), the Guangxi Natural Science Foundation (grant 2013GXNSFAA019002) and the project of outstanding young teachers' training in higher education institutions of Guangxi. L.S. acknowledges support by the NSFC (grant 11103083) and the Joint NSFC-ISF Research Program (grant 11361140349). S.O. acknowledges the support of the Leverhulme Trust. S.J. acknowledges support from Korea Basic Science Research Program through NRF-2014R1A6A3A03057484 and NRF-2015R1D1A4A01020961, and I. H. P. through NRF-2015R1A2A1A01006870 and NRF-2015R1A2A1A15055344. R. A., D. F. and D. S. acknowledge support from RSF (grant 17-12-01378). A. K. acknowledges the Science and Education Ministry of Kazakhstan (grant 0075/GF4).Peer reviewe

Transition from fireball to Poynting-flux-dominated outflow in three-episode GRB 160625B [submitted version]

The ejecta composition of gamma-ray bursts (GRBs) is an open question in GRB physics. Some GRBs possess a quasi-thermal spectral component in the time-resolved spectral analysis, suggesting a hot fireball origin. Some others show an essentially feature-less non-thermal spectrum known as the "Band" function, which can be interpreted as synchrotron radiation in an optically thin region, suggesting a Poynting-flux-dominated jet composition. Here we report an extraordinarily bright GRB 160625B, simultaneously observed in gamma-rays and optical wavelengths, whose prompt emission consists of three dramatically different isolated episodes separated by long quiescent intervals, with the durations of each "sub-burst" being ∼ 0.8 s, 35 s, and 212 s, respectively. The high brightness (with isotropic peak luminosity Lp,iso∼4×1053 erg/s) of this GRB allows us to conduct detailed time-resolved spectral analysis in each episode, from precursor to the main burst and extended emission. Interestingly, the spectral properties of the first two sub-bursts are distinctly different, which allow us for the first time to observe the transition from thermal to non-thermal radiation in a single GRB. Such a transition is a clear indication of the change of jet composition from a fireball to a Poynting-flux-dominated jet