Automated search for star clusters in large multiband surveys: II. Discovery and investigation of open clusters in the Galactic plane

Automated search for star clusters in J,H,K_s data from 2MASS catalog has been performed using the method developed by Koposov et. al (2008). We have found and verified 153 new clusters in the interval of the galactic latitude -24 < b < 24 degrees. Color excesses E(B-V), distance moduli and ages were determined for 130 new and 14 yet-unstudied known clusters. In this paper, we publish a catalog of coordinates, diameters, and main parameters of all the clusters under study. A special web-site available at http://ocl.sai.msu.ru has been developed to facilitate dissemination and scientific usage of the results.Comment: 9 pages, 3 tables, 5 figures, accepted to Astronomy Letter

Automated search for galactic star clusters in large multiband surveys: I. Discovery of 15 new open clusters in the Galactic anticenter region

Aims: According to some estimations, there are as many as 100000 open clusters in the Galaxy, but less than 2000 of them have been discovered, measured, and cataloged. We plan to undertake data mining of multiwavelength surveys to find new star clusters. Methods: We have developed a new method to search automatically for star clusters in very large stellar catalogs, which is based on convolution with density functions. We have applied this method to a subset of the Two Micron All Sky Survey catalog toward the Galactic anticenter. We also developed a method to verify whether detected stellar groups are real star clusters, which tests whether the stars that form the spatial density peak also fall onto a single isochrone in the color-magnitude diagram. By fitting an isochrone to the data, we estimate at the same time the main physical parameters of a cluster: age, distance, color excess. Results: For the present paper, we carried out a detailed analysis of 88 overdensity peaks detected in a field of $16\times16$ degrees near the Galactic anticenter. From this analysis, 15 overdensities were confirmed to be new open clusters and the physical and structural parameters were determined for 12 of them; 10 of them were previously suspected to be open clusters by Kronberger (2006) and Froebrich (2007). The properties were also determined for 13 yet-unstudied known open clusters, thus almost tripling the sample of open clusters with studied parameters in the anticenter. The parameters determined with this method showed a good agreement with published data for a set of well-known clusters.Comment: accepted to A&

Preserved sections of steppes as the basis for the future ecological framework of Belgorod oblast

The article provides a historical analysis of the transformation of the region’s steppes, the results of an inventory with remote sensing methods of the preserved sections of the steppes, assessment of the potential of their flora for the development of restoration succession, and the effectiveness for preservation of the steppe biodiversity of the regional network of specially protected areas and the formation of an ecological framewor

Mass Transfer Mechanism in Real Crystals by Pulsed Laser Irradiation

The dynamic processes in the surface layers of metals subjected activity of a pulsing laser irradiation, which destroyed not the crystalline structure in details surveyed. The procedure of calculation of a dislocation density generated in bulk of metal during the relaxation processes and at repeated pulse laser action is presented. The results of evaluations coincide with high accuracy with transmission electron microscopy dates. The dislocation-interstitial mechanism of laser-stimulated mass-transfer in real crystals is presented on the basis of the ideas of the interaction of structure defects in dynamically deforming medium. The good compliance of theoretical and experimental results approves a defining role of the presented mechanism of mass transfer at pulse laser action on metals. The possible implementation this dislocation-interstitial mechanism of mass transfer in metals to other cases of pulsing influences is justifiedComment: 10 pages, 2 figures, Late

Infrared identification of 4U1323-619 revisited

We re-examine the infrared counterpart of the dipping low-mass x-ray binary 4U1323-619. New X-ray data available from the XMM and Chandra observatories combined with archival IR observations from the ESO 3.6m New Technology Telescope allow us to define a new possible counterpart. We present here its photometric properties and compare them with a simple analytical model of an accretion disc illuminated by the hot central corona known to be present in the binary system.Comment: 4 pages, 1 table, 1 figure, accepted to MNRAS Letter

Experience of extracorporeal membrane oxygenation in a laboring woman with severe preeclampsia

The aim of the work is to demonstrate the possibility of using extracorporeal membrane oxygenation in the complex therapy of severe lung damage in a patient with multiple organ failure caused by severe preeclampsia.Цель работы – демонстрация возможности применения экстракорпоральной мембранной оксигенации в комплексной терапии тяжелого поражения легких у пациентки с полиорганной недостаточностью, вызванной тяжелой преэклампсией

Особенности тромбоэластографического профиля пациентов с COVID-19 в условиях ОРИТ

The objective: to study the hemostatic system of patients diagnosed with the novel new coronavirus infection and compare the data obtained with hemostatic system parameters in patients with advanced deep vein thrombosis/pulmonary embolism without COVID-19.Subjects and methods. A single-center prospective study with retrospective control was conducted in Anesthesiological and Intensive Care Department No. 1 of Kuvatov State Medical University (Ufa) in April - May 2020, the objective of the study was to investigate the hemostatic system of patients with confirmed new coronavirus infection, patients diagnosed with venous thrombosis in 2012-2014, and a group of healthy volunteers.Results. Evaluation of the hemostasis system in patients with thrombosis and patients with COVID-19 demonstrates the same type of changes: MA, Angle, G indices increase according to thromboelastography results, as well as D-dimer and fibrinogen levels increase, while antithrombin III activity decreases.Conclusion. Thus, TAG may be crucial for accurate identification of patients with advanced increased risk of thrombosis and thus possibly avoid unnecessary anticoagulation in patients at low risk of thrombosis.Цель: изучение системы гемостаза пациентов с установленной новой коронавирусной инфекцией и сопоставление полученных данных с результатами показателей системы гемостаза пациентов с состоявшимся тромбозом глубоких вен / тромбоэмболией легочной артерии без COVID-19.Материалы и методы. В рамках одноцентрового проспективного исследования с ретроспективным контролем на базе анестезиолого-реанимационного отделения № 1 ГБУЗ «РКБ им. Г. Г. Куватова» в апреле ‒ мае 2020 г. проведено исследование системы гемостаза пациентов с подтвержденной новой коронавирусной инфекцией, в 2012‒2014 гг. ‒ пациентов с диагностированным венозным тромбозом и группы здоровых добровольцев.Результаты. Оценка системы гемостаза у пациентов с тромбозом и пациентов с COVID-19 демонстрирует однотипные изменения: увеличиваются показатели МА, Angle, G по данным тромбоэластографии, а также повышаются уровни D-димера, фибриногена и снижается активность антитромбина III.Заключение. Тромбоэластография может иметь решающее значение для точной идентификации пациентов с повышенным риском тромбоза и тем самым, возможно, позволяет избежать ненужной антикоагулянтной терапии у пациентов с низким риском тромбоза

Aerodynamic investigations of ventilated brake discs.

The heat dissipation and performance of a ventilated brake disc strongly depends on the aerodynamic characteristics of the flow through the rotor passages. The aim of this investigation was to provide an improved understanding of ventilated brake rotor flow phenomena, with a view to improving heat dissipation, as well as providing a measurement data set for validation of computational fluid dynamics methods. The flow fields at the exit of four different brake rotor geometries, rotated in free air, were measured using a five-hole pressure probe and a hot-wire anemometry system. The principal measurements were taken using two-component hot-wire techniques and were used to determine mean and unsteady flow characteristics at the exit of the brake rotors. Using phase-locked data processing, it was possible to reveal the spatial and temporal flow variation within individual rotor passages. The effects of disc geometry and rotational speed on the mean flow, passage turbulence intensity, and mass flow were determined. The rotor exit jet and wake flow were clearly observed as characterized by the passage geometry as well as definite regions of high and low turbulence. The aerodynamic flow characteristics were found to be reasonably independent of rotational speed but highly dependent upon rotor geometry

Септический шок в акушерстве: клинические рекомендации Общероссийской общественной организации «Федерация анестезиологов и реаниматологов»

В статье отражены основные положения клинических рекомендаций по септическому шоку в акушерстве, утвержденных Общероссийской общественной организацией «Федерация анестезиологов и реаниматологов» в 2022 г. Актуальность проблемы связана с высокими показателями летальности и заболеваемости от сепсиса и септического шока в акушерстве. Последовательно представлены основные вопросы этиологии, патогенеза, клинической картины, методов лабораторной и инструментальной диагностики, особенности применения шкал qSOFA, SOFA, MOEWS, SOS, MEWC, IMEWS для верификации сепсиса. В статье представлена стартовая интенсивная терапия (первые 6–12 ч) лечения септического шока в акушерстве с учетом особенностей организма беременной женщины. Описана стратегия назначения вазопрессоров (норэпинефрин, фенилэфрин, эпинефрин), инотропных препаратов (добутамин), представлены антибиотики и оптимальные схемы антибактериальной терапии, особенности инфузионной и адъювантной терапии. Обсуждены вопросы хирургического лечения очага инфекции и показания к гистерэктомии, а также организация медицинской помощи и реабилитация пациенток, перенесших сепсис и септический шок. Описаны основные принципы профилактики развития сепсиса и септического шока в акушерстве. Представлены критерии качества оказания медицинской помощи пациенткам с септическим шоком и алгоритмы действий врача при диагностике и интенсивной терапии пациенток с септическим шоком в акушерстве

The clinical relevance of oliguria in the critically ill patient : Analysis of a large observational database

Funding Information: Marc Leone reports receiving consulting fees from Amomed and Aguettant; lecture fees from MSD, Pfizer, Octapharma, 3 M, Aspen, Orion; travel support from LFB; and grant support from PHRC IR and his institution. JLV is the Editor-in-Chief of Critical Care. The other authors declare that they have no relevant financial interests. Publisher Copyright: © 2020 The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Background: Urine output is widely used as one of the criteria for the diagnosis and staging of acute renal failure, but few studies have specifically assessed the role of oliguria as a marker of acute renal failure or outcomes in general intensive care unit (ICU) patients. Using a large multinational database, we therefore evaluated the occurrence of oliguria (defined as a urine output 16 years) patients in the ICON audit who had a urine output measurement on the day of admission were included. To investigate the association between oliguria and mortality, we used a multilevel analysis. Results: Of the 8292 patients included, 2050 (24.7%) were oliguric during the first 24 h of admission. Patients with oliguria on admission who had at least one additional 24-h urine output recorded during their ICU stay (n = 1349) were divided into three groups: transient - oliguria resolved within 48 h after the admission day (n = 390 [28.9%]), prolonged - oliguria resolved > 48 h after the admission day (n = 141 [10.5%]), and permanent - oliguria persisting for the whole ICU stay or again present at the end of the ICU stay (n = 818 [60.6%]). ICU and hospital mortality rates were higher in patients with oliguria than in those without, except for patients with transient oliguria who had significantly lower mortality rates than non-oliguric patients. In multilevel analysis, the need for RRT was associated with a significantly higher risk of death (OR = 1.51 [95% CI 1.19-1.91], p = 0.001), but the presence of oliguria on admission was not (OR = 1.14 [95% CI 0.97-1.34], p = 0.103). Conclusions: Oliguria is common in ICU patients and may have a relatively benign nature if only transient. The duration of oliguria and need for RRT are associated with worse outcome.publishersversionPeer reviewe