90 research outputs found
The Updated Zwicky Catalog (UZC)
The Zwicky Catalog of galaxies (ZC), with m_Zw<=15.5mag, has been the basis
for the Center for Astrophysics (CfA) redshift surveys. To date, analyses of
the ZC and redshift surveys based on it have relied on heterogeneous sets of
galaxy coordinates and redshifts. Here we correct some of the inadequacies of
previous catalogs by providing: (1) coordinates with <~2 arcsec errors for all
of the Nuzc catalog galaxies, (2) homogeneously estimated redshifts for the
majority (98%) of the data taken at the CfA (14,632 spectra), and (3) an
estimate of the remaining "blunder" rate for both the CfA redshifts and for
those compiled from the literature. For the reanalyzed CfA data we include a
calibrated, uniformly determined error and an indication of the presence of
emission lines in each spectrum. We provide redshifts for 7,257 galaxies in the
CfA2 redshift survey not previously published; for another 5,625 CfA redshifts
we list the remeasured or uniformly re-reduced value. Among our new
measurements, Nmul are members of UZC "multiplets" associated with the original
Zwicky catalog position in the coordinate range where the catalog is 98%
complete. These multiplets provide new candidates for examination of tidal
interactions among galaxies. All of the new redshifts correspond to UZC
galaxies with properties recorded in the CfA redshift compilation known as
ZCAT. About 1,000 of our new measurements were motivated either by inadequate
signal-to-noise in the original spectrum or by an ambiguous identification of
the galaxy associated with a ZCAT redshift. The redshift catalog we include
here is ~96% complete to m_Zw<=15.5, and ~98% complete (12,925 galaxies out of
a total of 13,150) for the RA(1950) ranges [20h--4h] and [8h--17h] and
DEC(1950) range [-2.5d--50d]. (abridged)Comment: 34 pp, 7 figs, PASP 1999, 111, 43
A Multimodal Approach to Analgesia in Anorectal Surgery
Аim: Evaluation of methods for pain prevention and pain reduction after anorectal surgery at all stages of treatment based on publications found in available databases.Key points. Most anorectal diseases are benign and do not affect life expectancy, meanwhile about 40 % of the population suffer from it. Mainly anorectal disorders affect middle-aged people reducing their life quality. At the same time many articles aimed at studying only postoperative anesthesia. 2 researchers independently searched for articles published in Medline, Scopus, Cochrane, Web of Science, E-library databases using keywords. A total of 54 publications were included. A multimodal approach should include the pain prevention during pre-, intra- and postoperative periods. Acetaminophen is recommended for pain reduction according to the dosing protocols. Acetaminophen combined with other systemic analgesics is advisable for patients with severe pain. The opioids use is justified only for moderate-severe postoperative pain. Metronidazole and lidocaine with nitroglycerin ointment/ nifedipine/сorticosteroids effectiveness has been proven for local postoperative anesthesia. Prophylactic use of antibiotics and bowel preparation do not reduce postoperative pain. Stool softeners are recommended for reducing postoperative pain severity. Additional local anesthesia such as nerve blockade or infiltration anesthesia is recommended for all patients. Modern minimally invasive treatment methods of hemorrhoid are associated with less severe postoperative pain.Conclusion. The recommended scheme of multimodal anesthesia for patients after anorectal surgery is shown on Fig.1. Further studies are needed to evaluate preoperative anesthesia effectiveness, the feasibility of the perioperative flavonoids use, as well as comparisons of various minimally invasive treatment methods of anorectal diseases
Mediastinal Emphysema as a Specific Complication of COVID-19 (Case Report)
During the care of patients with novel coronavirus infection at the Lomonosov MSU Medical Research and Education Center from April 21 to June 13, 2020, we observed cases of spontaneous mediastinal emphysema (spontaneous pneumomediastinum) as a manifestation or a probable complication of COVID-19.The aim of the paper. To provide clinical case descriptions and approaches to the management of patients with spontaneous pneumomediastinum in COVID-19 associated pneumonia, as they are not addressed in the current clinical guidelines, and therefore are worthy of special attention.Among 224 patients with laboratory-confirmed diagnosis of the novel coronavirus infection COVID-19, five cases of pneumomediastinum without pneumothorax were identified. Of these, in two cases the pneumomediastinum developed during noninvasive lung ventilation (NLV) (one case) and invasive lung ventilation (one case). In three cases, spontaneous mediastinal emphysema was not associated with lung ventilation. By the time of publication, one case of pneumomediastinum was completed, and four patients remained hospitalized. All five patients were males aged from 52 to 84 years.This paper presents in depth the description of two cases of mediastinal and subcutaneous emphysema in patients with COVID-19
Этиология тяжелых острых респираторных инфекций у детей, госпитализированных в стационары Екатеринбурга в эпидемический сезон 2022 — 2023 г.
Objective. Study of the viral etiology of severe acute respiratory infections (SARI) in children hospitalized in a hospital in Yekaterinburg during the epidemic season of 2022—2023. Materials and methods. 267 clinical samples (nasopharyngeal swab) obtained from children hospitalized with symptoms of acute respiratory disease were studied. The etiology of the disease was deciphered by RT-PCR, using standard sets of reagents. The material was examined for the presence of influenza A and B viruses, as well as for viruses of non-influenza etiology. 267 individual patient records were analyzed. Results. As a result, it was found that cases of SARI were more often registered among younger children, the structure of SARI of influenza etiology was represented by influenza A(H1N1)pdm09 virus — 29.9% and influenza B virus — 20.7%, while it was found that most children were not vaccinated against influenza. The proportion of viruses of non-influenza etiology was represented by RS viruses (23.0%), rhinoviruses (9.2%) and bokaviruses (6.3%).Цель. Изучение вирусной этиологии тяжелых острых респираторных инфекций (ТОРИ) у детей, госпитализированных в стационар города Екатеринбурга в период эпидемического сезона 2022 — 2023 г. Материалы и методы. Исследовано 267 клинических образцов (носоглоточных мазков), полученных от детей, госпитализированных с симптомами острого респираторного заболевания. Расшифровку этиологии заболевания проводили методом ОТ-ПЦР с использованием стандартных наборов реагентов. Материал исследовали на наличие вирусов гриппа А и В, а также на вирусы негриппозной этиологии. Проанализировано 267 индивидуальных карт больных. Результаты. В результате установлено, что случаи ТОРИ чаще регистрировались среди детей младшей возрастной группы, структура ТОРИ гриппозной этиологии была представлена вирусом гриппа А(H1N1) pdm09 — 29,9% и вирусом гриппа B — 20,7%, при этом установлено, что большинство детей не были привиты против гриппа. Долю вирусов негриппозной этиологии представляли РС-вирусы (23,0%), риновирусы (9,2%) и бокавирусы (6,3%)
Star Formation History at the Centers of Lenticular Galaxies with Bars and Purely Exponential Outer Disks from SAURON Data
We have investigated the stellar population properties in the central regions
of a sample of lenticular galaxies with bars and single-exponential outer
stellar disks using the data from the SAURON integral-field spectrograph
retrieved from the open Isaac Newton Group Archive. We have detected chemically
decoupled compact stellar nuclei with a metallicity twice that of the stellar
population in the bulges in seven of the eight galaxies. A starburst is
currently going on at the center of the eighth galaxy and we have failed to
determine the stellar population properties from its spectrum. The mean stellar
ages in the chemically decoupled nuclei found range from 1 to 11 Gyr. The
scenarios for the origin of both decoupled nuclei and lenticular galaxies as a
whole are discussed.Comment: 10 pages, 4 figures, a slightly edited version of the paper published
by Astronomy Letters, v. 37, no.1, 201
К МЕХАНИЗМАМ РЕАЛИЗАЦИИ АДАПТОГЕННЫХ СВОЙСТВ ГИПЕРБАРИЧЕСКОЙ ОКСИГЕНАЦИИ
The impact of hyperbaric oxygenation (HBO) on lipid peroxidation (LPO) and the antioxidative system (AOS) was studied in patients with isolated and combined brain injury, in those with female internal genital inflammatory diseases. HBO temporarily enhances endotoxicosis with its subsequent rapid decrease rate. The stimulation of LPO processes is directly related to the degree of underlying disorders caused by an injury or disease. The HBO therapy regimen should be individualized depending on the response of AOS.Изучено влияние гипербарической оксигенации (ГБО) на состояние перекисного окисления липидов (ПОЛ) и анти-оксидантной системы (АОС) у больных с изолированной и сочетанной черепно-мозговой травмой, воспалительных заболеваниях внутренних половых органов у женщин. ГБО временно усиливает эндотоксикоз с последующим быстрым темпом его снижения. Стимуляция процессов ПОЛ находиться в прямой зависимости от степени исходных нарушений, обусловленных травмой или заболеванием. В зависимости от реакции АОС необходима индивидуализация схемы ГБО-терапии
Epidemic process of influenza in Yekaterinburg, Russian Federation, in 2016-2017
The article presents the results of an epidemiological observational study of the respiratory infection morbidity, estimation of the morbidity rates, the duration of the epidemic in Yekaterinburg in 2016 and 2017 for various age groups and the etiological decoding of the infectious agents that caused a rise in the incidence of these infections in a city hospital performed using laboratory techniques. The laboratory assessment showed that Hong Kong influenza virus A (H3N2) was predominant in the study period.Целью исследования являлась оценка эпидемического процесса гриппа в эпидсезон 2016-2017 г.г. в г. Екатеринбурге по результатам регистрируемой заболеваемости и лабораторной диагностики выявленных случаев заболеваний. В статье представлены результаты эпидемиологического наблюдения за заболеваемостью острыми респираторными вирусными инфекциями, расчет интенсивных показателей заболеваемости, продолжительность эпидемии в различных возрастных группах в эпидсезон 2016-2017 гг. в г. Екатеринбурге и этиологическая расшифровка лабораторными методами инфекционных агентов, послуживших причиной подъема заболеваемости данными инфекциями в городском стационаре. Лабораторные исследования показали, что в указанный период доминировал вирус гриппа A(H3N2) гонконгской линии
Assessing herd immunity influenza virus among residents of Yekaterinburg and Sverdlovsk oblast during epidemic periods of 2015-17
Thе aim of this research was acomparative assessment of the herd immunity to epidemic and seasonal influenza virus strains in the epidemic periods of 2015-2016 and 2016-2017 in compliance with the results of a sampling research of the donated blood sera in Yekaterinburg and Sverdlovsk Oblast, the Russian Federation. Hemagglutination inhibition assay test was used to assess 817 samples for antibodies to A/California/07/09(HlNlpdm09), A/HongKong/4801/14(H3N2) and В/Phuket/3073/13 influenza viruses. Index ≥1:40was considered a positive antibody titre. In the pre-epidemic period of 2015, the proportion of serapositive to A/California/07/09(HlNlpdm09) virus was 36.4%. In the pre-epidemic period of 2017, this proportion for A/Hong Kong/4801/14(H3N2) virus was 38,0%, in 2017 this proportion for A/California/07/09(HlNlpdm09) virus was 58,7%. The epidemic increases in the incidence caused by the corresponding current influenza virus serotypes in these years imply that prior to every epidemic season the herd immunity of the population was insufficient for the prevention of epidemics.Целью исследования явилась сравнительная оценка напряженности иммунитета к вирусам эпидемических и сезонных штаммов вируса гриппа в эпидемические периоды 2015-2016 г.г. и 2016-2017 г.г. по результатам выборочных исследований сывороток крови доноров г. Екатеринбурга и Свердловской области. Методом РТГА изучено 817 образцов на наличие антител к вирусам гриппа A/California/07/09(HlNlpdm09), A/Гонконг/4801/14(H3N2) и В/Пхукет/3073/13. Положительным титром антител считали показатель ≥1:40. В предэпидемический период 2015 г. доля позитивных сывороток к вирусу A/ California/07/09(HlNlpdm09) составила 36.4%. В предэпидемический период 2017г. к вирусу A/Гонконг/4801/14(H3N2) – 38,0%, в период 2017 г. к вирусу A/California/07/09(HlNlpdm09) - 58,7%. Эпидемические подъемы заболеваемости, обусловленные соответствующими актуальными серотипами вируса гриппа в эти годы свидетельствовали о том, что иммунная прослойка населения перед каждым эпидемическим сезоном оказывалась недостаточной для предотвращения эпидемий
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