Khabarovsk City Research Articles

Isolation of a rare pathogen <i>Chryseobacterium indologenes</i> in patients with pneumonia

Introduction. Chryseobacterium indologenes bacteria are rarely detected, poorly studied opportunistic bacteria of the nonfermenting gram-negative bacilli group that are characterized by high intrinsic and acquired multidrug resistance and involvement in healthcare associated infections.Aim. To analyze detection rate of C. indologenes strains from various biomaterials obtained from patients with pneumonia, as well as levels of pathogen drug resistance to antimicrobial drugs.Materials and methods. The research included 1740 clinical samples obtained from patients with pneumonia hospitalized in in-patient facilities of the Khabarovsk city during the COVID-19 pandemic. Clinical samples included 1305 respiratory samples (744 sputum samples and 561 nasopharyngeal swabs), 435 samples of autopsy material (lung tissue) obtained from patients with a fatal outcome of the disease. The study was performed via classical bacteriological method. Pathogens were identified with Vitek 2 bacteriological analyzer and Vitek MS mass spectrometer. Sensitivity to antimicrobial drugs was determined by disk-diffusion method and in a bacteriological analyzer.Results. A comparative analysis of detection of the entire nonfermenting gram-negative bacteria (NFGNB) group and C. indologenes from various clinical samples was carried out. Detection rate of NFGNB equaled 17.3%. NFGNB were isolated from autopsy material most often ‒ in 31.7% of cases, less often ‒ from sputum and nasopharyngeal smears (13.8% and 10.7%, respectively). C. indologenes was detected in 0.5% of the cases (8 isolates out of 1740 samples). Isolation of this pathogen was most frequent in nasopharyngeal smears – in 1.1% (6 cases out of 561 samples), least frequent ‒ from sputum, which totaled 0.3% (2 isolates from 744 samples). The detection rate of the pathogen in respiratory samples equaled 0.6% (8 isolates out of 1305 samples). This pathogen was not found in the autopsy material. Carbapenem-resistant variants of C. indologenes were isolated in 75% (6 cases out of 8) of the cases.Conclusion. Further intensifying of diagnostic methods will result in more frequent detection of these unusual pathogens, clinical significance of which needs more justification.

Studying the Composition and Genesis of Organic Matter in Bottom Sediments of Polluted Small Watercourses in Khabarovsk City Territory

Studying the Composition and Genesis of Organic Matter in Bottom Sediments of Polluted Small Watercourses in Khabarovsk City Territory

Горожанин в поисках сообщества: особенности организации дальневосточного городского пространства (на примере города Хабаровска)

As a rule, the tradition of analysis and description of the Russian city space marginalizes significant parts of this space. Thus, industrial zones, low-rise residential areas, etc. fall outside the concept of ‘city’. The Soviet ‘private sector’ often remains outside the scope of analysis, covering more than half of the city’s territory and a significant part of its population in individual settlements. This discussion in scientific papers has appeared recently, and we want to proceed with it in the space of Far Eastern cities. In this paper, we propose to look at these ‘marginal’ territories and the groups inhabiting them from a fundamentally different perspective, to consider them not as ‘territories of prospective development’, but as already established social space, with its inherent social significances and practices. From the framework of the Khabarovsk city we determine the ratio of ‘normal urban’ (regular urban development) and ‘marginal’ spaces on the basis of two years of observation, three series of in-depth interviews and analysis of statistics, demographic and spatial data, and then combine these two separated parts into a single object - the city, which, as we show in our work, is eminently characterized by both these types of spaces. As the study showed, it is in the ‘invisible’ part of the city that the most stable communities are formed, actively participating in the ‘struggle for the city’, organizing routine resistance to the aspirations of powerful agents to change their space. In areas of regular urban development, on the contrary, communities are increasingly replaced by ‘combinations’, associations regarding the use of common elements of urban infrastructure. At the same time, ‘meeting points’ appear between these parts, uniting the city, giving it a chance to form integrity, or at least coherence. The authors present an analysis of the urban space and urban communities of Khabarovsk in this article.

Studying the Composition and Genesis of Organic Matter in Bottom Sediments of Polluted Small Watercourses in Khabarovsk City Territory

The distribution of organic matter, hydrocarbons, phytopigments, and ecological-trophic groups of microorganisms was studied in the bottom sediments of ten small tributaries of the Amur R. near Khabarovsk. The water showed high concentrations of organic matter, varying from 44.47 to 279.3 mg/L. The concentration of Corg in bottom sediments varied from 1.9 to 23.1% in different types of sediments; the amount of hydrocarbons reached 5081 mg/kg, exceeding the background level by a factor of up to 50. Studies of the molecular composition of hydrocarbons in sediments revealed in some streams the predominance (up to 100% of the total) of light (C8–C13) n-alkanes, typical of oil products and the products of vegetation combustion. High-molecular compounds dominated in HC composition in most watercourses, including n-alkanes, genetically associated with terrestrial vegetation, and heavy fractions of oil products with various levels of microbial degradation. Volatile organic compounds were quantitatively dominated by the products of microbiological transformation (acetaldehyde and methanol). In terms of the concentration of sedimentary pigments (up to 400 µg/g), the sediments of the majority of watercourses belong to the hypereutrophic type. The total abundance of microorganisms in water varied from 2.7 to 488.0 thousand CFU/mL; in sediments, it was distributed symbatically, but ranged from 0.1 to 19.3 million CFU/g. The number of heterotrophic bacteria in bottom sediments correlated with the parameter of overload of the self-purification capacity (r = 0.718), and the number of oil-oxidizing bacteria correlated with hydrocarbon concentration (r = 0.967), thus confirming the indication properties of this bacterial group.

Внедрение новых технологий в процесс хранения нефтепродуктов – объективная необходимость экономической эффективности их использования и охраны окружающей среды

In the article theoretical and practical aspects of implementation of new technologies in the field of the energy complex on the example of assessing the effect of reducing fuel vapor emissions on the basis of two specialized oil terminal in the Russian Far East are presented. Nowadays insufficient attention is paid to the problem of resource saving, recycling and use of petroleum products. Meanwhile, according to the scientific publications, the ratio of growth in production and consumption of petroleum products is predicted. In this connection, a significant expansion of the oil storage will be required and, as a result, solving the problems of increasing the economic efficiency and environmental safety of storing oil products in various ways, including the method of recovering. There are a diffusion of petroleum and atmosphere, so as a result we have petroleum losses and the negative impact on the environment. The Khabarovsk territory is a main region of the Russian Far East, where the industrial production of petroleum products is carried out. The main facilities for storage and transshipment of fuel are also located here. So, for our region, the issue of reducing the loss of oil products during transshipment and storage is particularly acute. The problem of reducing the loss of petroleum products during transshipment and storage for our region is particularly acute. The results of the research of modern methods to reduce the loss of petroleum products on the example of the introduction of fuel vapor recovery units in the production process of oil terminal can be applied in development and implementation of plans for the construction of new oil depots and modernization of existing not only in the Khabarovsk city but throughout the Russian Federation.

Территориальное общественное самоуправление как инструмент вовлечения населения в решение вопросов местного значения и развития комфортного пространства жизнедеятельности (на примере г. Хабаровска)

Development of the territorial public self-government (TPS) in the city of Khabarovsk testifies to the quite high rates: the city of Khabarovsk is the leader in terms of the number of TPS among the municipalities of the region; the number of informed Khabarovsk residents about the possibilities of TPS has increased; the number of Khabarovsk residents involved in TPS activities has increased; TPS of the city is characterized by the annual growth of implemented initiative socially significant projects; annual and significant growth in the volume of both attracted budget funds and the investment of citizens' own funds on the co-financing terms. At the same time, the potential for development of TPS in Khabarovsk is significant and is connected, first of all, with the further development of informing the population, increase in the municipal budget financing of the TPS development program in the city, creation of the TPS School as an effective educational platform for the experience exchange and preparation of the successful socially significant projects. In general, it should be noted that the TOS support programs are one of the most successful tools for involving citizens in solving issues of the local importance. Development of 500 TPS by 2025 is a strategic task of the Khabarovsk city administration as a part of implementation of the Concept «Development of territorial public self-government in Khabarovsk until 2025.

Characteristics of respiratory tract bacterial microflora detected in patients suffering from community-acquired pneumonia during continuing spread of the new coronavirus infection in Khabarovsk city (december 2020 — march 2021)

Objective of the research to specify respiratory tract bacterial microflora in patients suffering from community-acquired pneumonia (CAP) during initial and repeat examination. To determine local factors affecting microflora in the cohort examined.
 Materials and methods. Surveillance subject 241 patients with CAP differed by their status and age who stayed in two healthcare facilities of the Khabarovsk city. Examination of respiratory smears was performed. Results. Indices of Gram-negative enterobacteria (30.8% [22.639.7%]) and Gram-negative nonfermentable bacteria (14.5% [8.621.7%]), isolated from patients hospitalized in healthcare institution No. 1 and mostly comprised of the elderly (aged over 61 years 82.0%; 74.388.6%) with more severe disease state including patients at the ICU, were higher compared to data obtained from healthcare institution No. 2 (19.8% (13.427.0); 6.1% (2.710.8) respectively). Prevalent pathogen was Klebsiella pneumoniae 13.6% (7.820.6) and 10.7% (6.016.5). Identification of Acinetobacter baumannii complex 6.4% (2.611.7) and 3.1% (0.86.7) should be also noted. A high percentage of drug-resistant bacterial variants was observed and for Klebsiella pneumoniae totaled 66.7% (41.887.4) and 57.1% (32.280.2) at the healthcare institutions No. 1 and No. 2, respectively. A. baumannii complex drug resistant variants were found in 85.7% (52.799.97) at healthcare institution No. 1. All isolates of A. baumannii complex at the healthcare institution No. 2 were drug resistant. High prevalence of Candida spp. was revealed in both healthcare institutions reaching 54.5% (45.263.7) and 58.0% (49.566.3), respectively, with minimal detection rate of classic pathogens such as S. pneumoniae 5.4% (2.010.4) and 5.3% (2.19.8) and H. influenzae 3.6% (0.97.9) and 3.8% (1.27.7), respectively. Repeat examination of 122 patients conducted 710 days later showed diverse changes in microflora spectrum regardless of the healthcare institution that was manifested as loss or emergence of drug-resistant variants as well as simultaneous presence of different variants of the same pathogen.
 Conclusion. The results obtained evidence about complexity and variety of mechanisms underlying microorganism community formation during the course of infectious process in patients. Local factors influencing microflora characteristics of patients at the two healthcare institutions were revealed.

Evaluation of the two in-patient hospitals on potential environmental hazard during the period of new coronavirus infection in the Khabarovsk city (december 2020 — march 2021)

Microbiological monitoring after infectious diseases in the system of epidemiological surveillance implies simultaneous pathogen identification both among patients and in hospital environment. Our aim is to assess potential hospital environmental hazard for the two in-patient infectious disease hospitals of the Khabarovsk city by using bacteriological and epidemiological analysis during new coronavirus disease pandemic. Materials and methods. Bacteriological assessment of nasopharyngeal microflora in 241 patients suffering from community-acquired pneumonia that were hospitalized in the two prevention and treatment facilities of the Khabarovsk city was performed. Sanitary-bacteriological control of hospital environment (428 hospital environment samples and 91 air samples) was carried out in parallel. Bacteriological assessment was performed with classical methods. Identification of isolated bacteriological pathogens and evaluation of drug-resistant strains were carried out by utilizing bacteriological analyzer Vitek 2 Compact. Results. Nine different pathogens (Pseudomonas aeruginosa, Pseudomonas stutzeri, Acinetobacter baumannii, Klebsiella pneumoniae, Klebsiella oxytoca, Enterobacter cloacae, Pantoea, Enterococcus faecium, Staphylococcus haemolyticus) were isolated in 20 out of 428 samples 4.7% [2.76.7]. Half of isolated agents 2.3% [0.93.8] were represented by drug-resistant isolates (10 out of 20 isolates) including 5 carbapenem-resistant isolates (Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae) and 5 isolates with multiple drug resistance (Enterobacter cloacae, Pantoea, Enterococcus faecium, Staphylococcus haemolyticus). Air samples contained pathogenic biological agents found in 6 out of 91 samples 6.6% [1.511.7], and half of them 3.3% [0.67.9] were identified as drug-resistant variants, including S. aureus и S. haemolyticus. One of the surveyed hospitals was recognized as more hazardous due to microflora isolated from intensive care unit (A. baumannii and P. aeruginosa were resistant to 3rd4th generation cephalosporins and carbapenems). Conclusion. Revealed circulation of wide range of microorganisms isolated from environment of two in-patient hospitals indicates high risk of healthcare-associated infections formation. Intensive care units can serve as a reservoir of healthcare-associated infections due to high percentage of patients with severe disease cases (main reservoir of drug-resistant strains).

Состояние популяций и инфицированность переносчиков возбудителей клещевых трансмиссивных инфекций в городской среде и пригородной зоне на примере г. Хабаровска

Annual submissions regarding ixodic ticks suction are registered in Khabarovsk. The research presents data of entomological observations of ixodic ticks population as well as their infection rate with tick-borne infections in the Khabarovsk city and its rural zone. Circulation of six epidemiologically significant species of Ixodidae family ticks that belong to three genus were detected in natural and anthropogenically transformed biocenoses of the Khabarovsk city and its rural area: Ixodes (I. persulcatus, I. pavlovskyi), Haemaphysalis (H. japonica, H. concinna) and Dermacentor (D. silvarum, D. reticulatus). Study revealed that I. persulcatus ticks were infected as well as greater number of tick-borne infections pathogens were isolated in this tick species, which specifies their high epidemiological significance. The fact of discovery of new types of carriers necessitates studies for evaluation of their infection rate and clarification of their role as tick-borne infection vectors. Keywords: ixodic ticks, infection rate, tick-borne infections, rural zone, urban environment.

Formation of a network of Khabarovsk City protected areas

The process of forming a protected areas network is being held in Russian cities that are focused on sustainable development as well as abroad. The retrospective analysis of various levels of the protected areas network formation took place in Khabarovsk – large city in the Russian Far East. The first protected areas were organized in the Khabarovsk City in 1995. The next stage of rapid expansion and growth of the total area and the range of categories of protected areas began in 2014 and is currently ongoing process. The network of the protected lands of Khabarovsk includes 29 areas (585.45 ha): 5 areas (212.43 ha) of regional significance and 24 areas (373.02 ha) of local significance. The predominance of protected sites of local importance and variety of categories (natural monuments, natural park, park areas, nurseries, small public gardens and natural recreational complexes) is the main feature of the formation of the city’s protected areas network. The insignificant share of the protected areas in the total area of the land territory of the city (2.57 %) indicates the necessity for the areas expansion and landscape diversity. The variety of plants is noted in park areas, natural monuments and natural recreational complexes. The results may apply in: environmental planning of urban territory.

Adaptation of cryomicrobiocenoses to mercury pollution

Abstract. This article presents the results of a layer-by-layer study of the ice thickness in the main channel of the Amur River (Khabarovsk city area) and Pemzenskaya and Amurskaya channels. Spectral and microbiological methods were used to assess the nature of ice contamination with organic compounds. The study of suspensions from ice melts by mass spectrometry (ICP MS) confirmed mercury pollution. Among the cultivated heterotrophic bacteria from the ice mass (cryomicrobiocenoses), there were communities adapted to high mercury concentrations (up to 0.001 mg/L). In some layers of the ice, we recorded a high portion of sulfate-reducing bacteria involved in mercury methylation. In the mainstream of the Amur River, a layer of ice (70-117 cm) had a high content of mercury, dissolved organic matter, plant detritus, and the maximum number of bacteria resistant to mercury pollution. This ice layer was formed during the period of technological discharges from reservoirs to combat the consequences of a major flood in the Amur River Basin. The indicator of resistance of cryomicrobiocenoses to high mercury concentrations was due to the adaptive potential of heterotrophic microorganisms, including active mercury methylators, i.e. sulfate-reducing bacteria. This indicator can be used for a retrospective assessment of mercury pollution of rivers during the freeze-up period.

Respiratory virus monitoring in patients with community-acquired pneumonia during COVID-19 pandemic in Khabarovsk in 2020

Introduction. Emergence and spread of new coronavirus SARS-CoV-2 among population of the Khabarovsk krai influenced the growth of reported cases of community-acquired pneumonia in year 2020. Aim. To determine proportion of other respiratory viruses in development of viral pneumonia epidemic process in the Khabarovsk city in year 2020 during COVID-19 pandemic. Materials and methods. Sputum of 346 patients with community-acquired pneumonia that were hospitalized with suspected diagnosis of COVID-19 was analyzed during year 2020 in Khabarovsk city. Identification of viral agents was performed via real-time reverse-transcriptase polymerase chain reaction. Results. SARSCOV-2 RNA was identified in 183 (52.9%) out of 346 patients. Among other respiratory viruses parainfluenza virus type 3 and rhinoviruses were dominant mostly in SARS-CoV-2 negative examined people. It should be noted that etiology of pneumonia was identified only in 12.9% of all cases in this group (163 people). Co-infection with SARS-CoV-2 and other respiratory viruses such as parainfluenza virus type 3 virus, other coronaviruses and adenovirus was detected only in 2.2% of the cases. Conclusion. Low level of respiratory viruses detection in sputum can be caused by poor technique of sample collection in the hospital, disruption of storage and transportation conditions as well as development of secondary bacterial infection in certain patients. In order to evaluate influence of other respiratory viruses on the course of COVID-19 with underlying coinfection further investigation including analysis of patients’ clinical data is needed.

Bioindication of mercury pollution of the Amur River during the ice-covered period

The results of the layer-by-layer research of a river ice cores by using spectral and microbiological methods were presented. The impact of the mercury on sulfate-reducing bacteria activity from different layers of ice that had been sampled in March 2016 in the lower Amur River in Khabarovsk city was found. It was found that mercury concentration range of 0.0005-0.001 mg/l stimulated the sulfate-reducing bacteria activity, which were into the ice throughout the study area of the Amur River. To a large extent, this effect was typical for the ice that was sampled in the right bank of the Amur River near Khabarovsk city, where mercury pollution of the aquatic environment had been detected repeatedly. The activity of biogeochemical processes into the ice determined by high concentrations of organic substances, by the pollution of the aquatic environment with mercury during the ice cover formation, and by the abundance of cultivated heterotrophic and sulfate-reducing bacteria. During the ice drift and ice melting, the secondary pollution with toxic substances of various genesis of the aquatic environment occurs, which can have a negative impact on a hydrobionts.

Typical distribution and viral load of the human papilloma virus in residents of khabarovsk city

Typical distribution and viral load of the human papilloma virus in residents of khabarovsk city

Study of native dendroflora of Khabarovsk city

The problem of studying the dendroflora of cities is relevant when conducting modern ecological andbotanical research. The article presents the results of an inventory of native dendroflora of the city of Khabarovsk. Anannotated list of 116 species from 27 families was compiled, which exceeds the corresponding figures for the dendrofloraof Vladivostok and Birobidzhan. At the same time, the dendroflora of Komsomolsk-on-Amur, Blagoveshchensk,Petropavlovsk-Kamchatsky is much richer in terms of plant composition. Taxonomic, general, and biomorphologicalanalyzes of the flora have been carried out. The leading botanic families have been identified: Rosaceae, Salicaceae,Betulaceae, Caprifoliaceae. Large species are: Salix, Acer, Betula, Lonicera, Ulmus, Picea, Populus, Ribes, Spiraea, Rosa,Euonymus. Among woody plants, East Asian species predominate, which corresponds to the position of the city ofKhabarovsk within the Manchurian region of the East Asian floristic region. The nemoral group is the richest in species,which is typical for broad-leaved and coniferous-broad-leaved forests of the temperate zone. Analysis of life forms andrhythms of annual development show the predominance of summer-green shrubs, evergreen and summer-green trees inthe flora of the city. There is a small number of lianas, dwarf shrubs. Dwarf forms in the dendroflora of the city are rare,they are found on the territory of the Far Eastern Forestry Research Institute‘s Arboretum. There is rare and protectedspices in the flora of the city – Taxus cuspidata.

Comparative study of air source and ground source heat pumps in 10 coldest Russian cities based on energy-exergy-economic-environmental analysis

As one of the environmentally friendly technologies, heat pumps have been widely utilized in residential and commercial buildings all over the world. The use of renewable energy sources and environmentally friendly refrigerants are two major challenges associated with heat pumps applications. Due to the advantages of cascade heat pumps over single-stage heat pumps and the higher energy demand met by cascade heat pumps, investigation of the effects of geographic conditions (weather and soil conditions) as well as the simultaneous use of two refrigerants for high and low temperature cycles on performance of cascade heat pumps would provide critical information for practical applications. This paper compares the performance of air source and ground source cascade heat pumps using refrigerants by low global warming potential and zero ozone depletion potential in top 10 coldest cities of Russia. The effects of variations in temperature of evaporator and cascade heat exchanger on optimal operational conditions are investigated based on energy, exergy, economic and environmental analysis using Pareto front curve. Optimization results show that there is an optimal point for evaporator temperature and cascade heat exchanger temperature where the maximum COP, maximum exergy efficiency and minimum total cost rate for ASHP and GSHP systems are obtained. It is found that at low air temperature, since the underground temperature is higher than ambient air, the efficiency of GSHP system is better than efficiency of ASHP system. The maximum COP of 2.357 and 2.44 are respectively obtained for ASHP and GSHP systems in Saint Petersburg. In addition, Yakutsk city has the maximum exergy efficiency of 40.7% and 43.2% and maximum total cost rate of 14714 $ year−1 and 13693 $ year−1 for ASHP and GSHP systems, respectively. Finally, it is concluded that Saint Petersburg is the best city to employ ASHP system while GSHP system is suggested for Khabarovsk city.

Characteristics of roe of autumn chum salmon Oncorhynchus keta from the Amur River

Chemical composition and nutritional and biological value of roe are investigated for autumn chum salmon from the Amur River sampled during their run for spawning from the estuary to the area of Khabarovsk city. Color and strength of roe were examined, content of proteins, lipids and minerals was measured, amino acid and fatty acid composition was determined. Caloric capacity and biological value of the samples were usual for this species. Physical properties of the roe (strength, color intensity) practically did not change in dependence on distance from the river mouth. Stable quality of roe in the run of spawning migration in the lower Amur is concluded.

DEVELOPMENT OF FLAVONOIDS QUANTITATIVE DETERMINATION METHOD IN GLYCYRRHIZA PALLIDIFLORA HERB (GLYCYRRHIZA PALLIDIFLORA MAXIM.)

The licorice genus (Glycyrrhiza L.) plants are widely used in conventional and traditional medicine in different countries around the world. The genus includes about 15 species, but only three of them - G. glabra, G. uralensis and G. inflata are well studied and included in the Europe and Asia pharmacopoeias. Pale-flowered licorice (Glycyrrhiza pallidiflora Maxim.) is a perennial herbaceous plant from the false (not sweet) licorice section (Pseudoglycyrrhiza Krug.), which do not accumulate glycyrrhizin derivatives. This East Asian species grows in the Russian Far East. The distribution area of G. pallidiflora is limited. Only a few of its geographically isolated habitats are known: within the Khabarovsk city, near the Sarapulskoe village (Lower Amur) and in the Primorsky Kray on the Ryabokon Peninsula on the Lake Hanka southeastern coast. The G. pallidiflora successful introduction on the Kemerovo region-Kuzbass territory has been carried out over the past 5 years in the “Apothecary garden” territory of the Kuzbass Botanical Garden of the Institute of Human Ecology, FRC UUH SB RAS, Kemerovo. Currently, the scientific literature contains limited information on the composition and quantitative content of biologically active compounds (BAC) in the aerial part of G. pallidiflora. Therefore, the main task is to conduct phytochemical studies of the main classes of BAC, which have a pronounced pharmacological activity. We have proposed the amount of flavonoids quantitative determination method in the pale-flowered licorice herb, introduced in Kuzbass, by the differential spectrophotometry method, based on aluminum (III) chloride complexation reaction. The flavonoids extraction conditions from raw materials have been studied. They depend on the ethyl alcohol concentration, the plant raw materials grinding degree, the extraction time, and the raw materials and extractants ratio. The optimal extraction conditions were selected and a quantitative determination method was developed. On the base of it was established that the amount of flavonoids content in the herb of pale-flowered licorice (Glycyrrhiza pallidiflora Maxim.), in terms of rutin, is from 2.25 ± 0.38% to 2.44 ± 0, 04%. The relative error of the proposed method is ± 3.21%.

Perspective Directions of Renovation of Industrial Enterprises on the Example of Khabarovsk City

The article is devoted to the problems of renovation and functional re-profiling of industrial facilities of the Soviet industrialization period. On the example of the city of Khabarovsk, the possibility of revitalizing the territories of the Dalenergomash, Daldizel, Splav and Amurkabel factories, which at one time were the largest industrial enterprises in the region, is considered. An excursion into the history of these enterprises is given, their current state is considered, promising directions for the development of these objects and their territories are identified. Special attention is pays to the study of Russian and foreign experience in the renovation of industrial enterprises, which can be used in the Far East. As a result, the authors propose recommendations for possible renovation of industrial heritage sites in the city of Khabarovsk, taking into account the existing urban planning and economic situation.

PR-Technologies in the Tourism Industry as a Tool to Promote the Image of the Far East Region (the Case of Khabarovsk Territory and Khabarovsk City)

PR-Technologies in the Tourism Industry as a Tool to Promote the Image of the Far East Region (the Case of Khabarovsk Territory and Khabarovsk City)