The Activities of Local Government Bodies to Improve the Sanitary Condition of Cities in Western Siberia (Late XIX — Early XX Centuries)

The activities of local authorities in the sanitary improvement of cities in the West Siberian region are characterized in the article. The author analyzes the sanitary regulations of the self-government bodies addressed to the urban population, identifies their common and distinctive features. Attention is focused on the problem of compliance with the instructions issued by the authorities by the owners of factories, plants, trade shops, public baths, hairdressers and other institutions of urban infrastructure, as well as ordinary citizens. Methods of punishment for violation of the accepted sanitary rules and the effectiveness of their application are considered. The conclusion is made about the intensification of the work of urban self-government bodies in ensuring sanitary order, which was caused by an increase in the rates of economic development of cities, an increase in their population, an acceleration of migration processes and, as a consequence, an unfavorable epidemiological situation, an expansion of the residential area due to the chaotic development of urban outskirts, pollution of water supply sources, the emergence of unauthorized household waste dumps. It is emphasized that the need to solve the problems of sanitary improvement forces the city authorities to seek support from caring citizens, to establish interaction with them, which brings first positive results, contributes to the development of private initiative in improving the sanitary condition of the city economy and residential yards of ordinary inhabitants

Anti-epidemic Measures of Municipal Authorities in Western Siberia in Late XIX — Early XX Centuries

The events in the late XIX — early XX centuries in Western Siberia, where the population survived several epidemics of cholera, typhus and typhoid fever, measles and other infectious diseases, are considered. It is noted that the sad result of the outbreak of many infections was the high epidemic mortality of the population. The activity of municipal authorities on the prevention and control of the spread of widespread diseases, the prevention of high mortality among the sick is being studied. The anti-epidemic measures taken by local authorities are analyzed: an increase in expenditures for urban improvement; the publication of mandatory sanitary regulations; creation of medical and sanitary executive commissions; division of the city territory into sections and assignment of sanitary guardians to them; arrangement of bacteriological laboratories, infectious barracks and disinfection chambers; health education of the population. The conclusion is made about positive changes in the prevention and treatment of a number of infectious diseases, the organization of sanitary supervision over the state of water supply sources, places of sale of food, the maintenance of garbage and cesspools, the dumping of sewage on strictly designated areas. At the same time, attention is drawn to the persistence of high epidemic mortality (especially infant mortality) due to the low standard of living of most of the townspeople, malnutrition, poor development of hygiene skills, lack of awareness of the causes and methods of treating diseases

Functioning of Civilian Hospitals in Cities of Tobolsk Province in 1870-1917

The main aspects of the functioning of civilian hospitals in the cities of the Tobolsk province (city, prison, foreign, hospitals of the Orders of public charity, as well as small hospitals at some educational institutions) is discussed in the article. Based on the information contained in the reports of the Tobolsk Medical Board, as well as in the annual reviews of the province, changes are observed in the number of hospitals and medical personnel, the number of inpatient beds for several time sections. Attention is paid to the characteristics of hospital infrastructure, the material and technical and sanitary conditions of medical institutions. The conditions of stay of patients in medical institutions, issues of their nutrition are described. The conclusion is drawn about the increase in the costs of the central and local authorities for the organization of inpatient treatment during this period, as well as about the positive dynamics in the number of hospital facilities and medical staff in the cities of the specified province, qualitative changes in the organization of medical care for inpatients, and the improvement of their conditions in hospitals. The problems that arise in the functioning of hospital facilities in the cities of the province during the First World War are indicated

Network of Settlements in Novosibirsk District in 1920s: Population, Structure and Development Features

The study analyzes the population, typology, and size of settlements in the Novosibirsk district, which was one of the administrative-territorial units of the Siberian region in 1925—1930. The peculiarities of the development of the settlement network in this district are determined in comparison with neighboring districts. Data on the quantitative ratio of settlements of different types, their household and population composition are presented for the first time, and continuity and transformation in the development of the settlement system in the district are traced. The relevance of the study lies not only in the poorly studied nature of the topic but also in the possibility of using historical experience from previous generations to build an effective agricultural policy and revive the Russian village in its modern stage of development. The novelty of the study lies in the analysis of the functioning of the settlement network in the early years of Soviet power, including the typical structure of its units, the average number of peasant households in settlements of different types, and the placement of mono-ethnic settlements in the Novosibirsk district. A new trend has been noted in transforming rural settlements into urban ones, expressed in a refusal to make purely administrative decisions on this issue in favor of taking into account the sequential evolution of a specific settlement

The secondary minimum in YY Her: Evidence for a tidally distorted giant

We present and analyze quiescent UBVRI light curves of the classical symbiotic binary YY Her. We show that the secondary minimum, which is clearly visible only in the quiescent VRI light curves, is due to ellipsoidal variability of the red giant component. Our simple light curve analysis, by fitting of the Fourier cosine series, resulted in a self-consistent phenomenological model of YY Her, in which the periodic changes can be described by a combination of the ellipsoidal changes and a sinusoidal changes of the nebular continuum and line emission.Comment: 5 pages, 2 figures, to appear in Astronomy & Astrophysic

Formation of a disk-structure and jets in the symbiotic prototype Z And during its 2006-2010 active phase

We present an analysis of spectrophotometric observations of the latest cycle of activity of the symbiotic binary Z And from 2006 to 2010. We estimate the temperature of the hot component of Z And to be \approx 150000 - 170000 K at minimum brightness, decreasing to \approx 90000 K at the brightness maximum. Our estimate of the electron density in the gaseous nebula is N_{e}=10^{10}-10^{12} cm^{-3} in the region of formation of lines of neutral helium and 10^6-10^7 cm^{-3} in the region of formation of the [OIII] and [NeIII] nebular lines. A trend for the gas density derived from helium lines to increase and the gas density derived from [OIII] and [NeIII] lines to simultaneously decrease with increasing brightness of the system was observed. Our estimates show that the ratios of the theoretical and observed fluxes in the [OIII] and [NeIII] lines agree best when the O/Ne ratio is similar to its value for planetary nebulae. The model spectral energy distribution showed that, in addition to a cool component and gaseous nebula, a relatively cool pseudophotosphere (5250-11 500 K) is present in the system. The simultaneous presence of a relatively cool pseudophotosphere and high-ionization spectral lines is probably related to a disk-like structure of the pseudophotosphere. The pseudophotosphere formed very rapidly, over several weeks, during a period of increasing brightness of Z And. We infer that in 2009, as in 2006, the activity of the system was accompanied by a collimated bipolar ejection of matter. In contrast to the situation in 2006, the jets were detected even before the system reached its maximum brightness. Moreover, components with velocities close to 1200 km/s disappeared at the maximum, while those with velocities close to 1800 km/s appeared.Comment: 18 pages, 19 figures, Accepted for publication in Astronomy Report

Recurrent Symbiotic Nova T Coronae Borealis Before Outburst

The results of photometric and spectral observations of T CrB obtained in a wide range of wavelengths in 2011-2023 are presented. We use the near-IR light curves to determine a new ephemeris $JD_{min} = 2455828.9 + 227.55 \cdot E$ for the times of light minima when the red giant is located between the observer and the hot component. The flux ratio H$\alpha$/H$\beta$ varied from ~3 to ~8 in 2020-2023, which may be due to a change in the flux ratio between the X-ray and optical ranges. It is shown that the value of H$\alpha$/H$\beta$ depends on the rate of accretion onto the hot component of the system. Based on high-speed follow-up observations obtained on June 8, 2023, we detected a variability of the HeII $\lambda 4686$ line with a characteristic time-scale of ~25 min, the amplitude of variability in the $B$ band was ~0.07$^m$. Simulations of the near-IR light curves accounting for the ellipsoidal effect allowed us to obtain the parameters of the binary system: the Roche lobe filling factor of the cool component $\mu=1.0$, the mass ratio $q=M_{cool}/M_{hot}=0.65\pm0.2$, the orbit inclination $i=56^\circ\pm4^\circ$. A comparison of the light curve obtained in 2005-2023 with the 1946 outburst template made it possible to predict the date of the upcoming outburst - January 2024.Comment: 15 pages, 3 tables, 8 figures, submitted to Astronomy Letter