Pub Date : 2021-10-22DOI: 10.17150/2500-2759.2021.31(3).400-406
O. Belykh, S. Rozanov
The problem of providing Russians with safe high quality aquaculture products remains essential. It is necessary to achieve the objective of developing the production of live food to cultivate baby fish in Russia, as well as in the Irkutsk region. The aim of the article is to study and introduce the technology of obtaining Artemia salina nauplii. An analysis of contemporary literature on biology, as far as the issues of aquaculture are concerned, proves the necessity of selecting a technology of cultivating nauplii to feed fish at certain age stages. The article summarizes the data on the habitat of Artemia salina in the Russian Federation. The data on the larval stage of the object of the research are specified. Scientific foundations of technological aspects with regard to hatching of hydrobionts Artemia salina larvae are presented. Environmental optimum conditions for swim-up of Artemia depending on the degree of water salinity, oxygen saturation and luminance during the incubation period of small crustaceans are specified. The reasons for giving live food to baby fish are substantiated.
{"title":"Features of Growing Live Food Artemia salina in Aquaculture","authors":"O. Belykh, S. Rozanov","doi":"10.17150/2500-2759.2021.31(3).400-406","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(3).400-406","url":null,"abstract":"The problem of providing Russians with safe high quality aquaculture products remains essential. It is necessary to achieve the objective of developing the production of live food to cultivate baby fish in Russia, as well as in the Irkutsk region. The aim of the article is to study and introduce the technology of obtaining Artemia salina nauplii. An analysis of contemporary literature on biology, as far as the issues of aquaculture are concerned, proves the necessity of selecting a technology of cultivating nauplii to feed fish at certain age stages. The article summarizes the data on the habitat of Artemia salina in the Russian Federation. The data on the larval stage of the object of the research are specified. Scientific foundations of technological aspects with regard to hatching of hydrobionts Artemia salina larvae are presented. Environmental optimum conditions for swim-up of Artemia depending on the degree of water salinity, oxygen saturation and luminance during the incubation period of small crustaceans are specified. The reasons for giving live food to baby fish are substantiated.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"6 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79513700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).241-247
E. Verkhozina, V. Verkhozina, O. Belykh
The article presents the results of monitoring studies of bacterial strains on antibiotic resistance held from 1995 to 2015. Samples were selected from various ecological niches of the Lake Baikal ecosystem. The bacteria was analyzed for sensitivity and resistance to 14 antibiotics. It was revealed that bacteria resistant to many antibiotics were isolated from the lake's lithoral. For the first time it has been established that when analyzing a large amount of received data, it is advisable to use variance and correlation methods of analysis. A dispersion analysis of bacterial resistance to antibiotics grouped by the factor of belonging to a certain month of sampling has found that in different months of the year, average resistance is reliably different (P_value = 0,003 < α), i.e. seasonal dynamics are observed. Isolated strains are resistant to a range of broad-spectrum antibiotics, especially tetracycline and ampicillin. The most effective antimicrobial action is noted for pefloxacin, cephaloxima, gentamicin, cephalozolin. According to the cluster analysis, antibiotic-resistant strains are cross-resistant to many antibiotics. Bacteria isolated from the pelagilyan ecosystems of Lake Baikal and deep-sea bottom sediments are highly sensitive to almost all antibiotics.
{"title":"Analysis of the Antibiotic Resistance of Bacteria Isolated from Various Ecological Niches of Lake Baikal Ecosystem","authors":"E. Verkhozina, V. Verkhozina, O. Belykh","doi":"10.17150/2500-2759.2021.31(2).241-247","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).241-247","url":null,"abstract":"The article presents the results of monitoring studies of bacterial strains on antibiotic resistance held from 1995 to 2015. Samples were selected from various ecological niches of the Lake Baikal ecosystem. The bacteria was analyzed for sensitivity and resistance to 14 antibiotics. It was revealed that bacteria resistant to many antibiotics were isolated from the lake's lithoral. For the first time it has been established that when analyzing a large amount of received data, it is advisable to use variance and correlation methods of analysis. A dispersion analysis of bacterial resistance to antibiotics grouped by the factor of belonging to a certain month of sampling has found that in different months of the year, average resistance is reliably different (P_value = 0,003 < α), i.e. seasonal dynamics are observed. Isolated strains are resistant to a range of broad-spectrum antibiotics, especially tetracycline and ampicillin. The most effective antimicrobial action is noted for pefloxacin, cephaloxima, gentamicin, cephalozolin. According to the cluster analysis, antibiotic-resistant strains are cross-resistant to many antibiotics. Bacteria isolated from the pelagilyan ecosystems of Lake Baikal and deep-sea bottom sediments are highly sensitive to almost all antibiotics.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75929843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).271-280
G. Guseva, Ksenia Rybakova, A. Shcheglova
At present, environmental problems are especially relevant. The COVID-19 pandemic raises awareness of the state about the environment and its impact on people living in the cities and about improving urban construction. The purpose of the article is to determine the measures necessary to form the concept of greening of urban construction in an unfavorable epidemiological situation. The basic information of the article is comprised of regulatory documents regulating the urban planning sphere and environmental protection, statistical data on the relationship between the ecological situation and the quality of life of the population in the countries of the world, data from a sociological survey of young people in order to identify the level of awareness of the population about the ecological state of the region and the quality of urban construction.The article discusses the idea of creating eco-cities. It is concluded that it is necessary to legally consolidate the concept of «eco-city», the authors offer their own interpretation of it. Special attention is drawn to the particular importance of the environmental friendliness of people's thinking and a number of environmental-oriented recommendations are given that should be taken into account in the integrated development of territories. The study has shown that legislative consolidation of «eco-city» concept will simplify the process of implementation of programs aimed at greening of cities and integrated development of territories which is an essentially significant factor, taking into account the current environmental problems and the epidemiologic situation.
{"title":"Concept of Ecologization of Urban Construction in Conditions of an Adverse Epidemiological Situation","authors":"G. Guseva, Ksenia Rybakova, A. Shcheglova","doi":"10.17150/2500-2759.2021.31(2).271-280","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).271-280","url":null,"abstract":"At present, environmental problems are especially relevant. The COVID-19 pandemic raises awareness of the state about the environment and its impact on people living in the cities and about improving urban construction. The purpose of the article is to determine the measures necessary to form the concept of greening of urban construction in an unfavorable epidemiological situation. The basic information of the article is comprised of regulatory documents regulating the urban planning sphere and environmental protection, statistical data on the relationship between the ecological situation and the quality of life of the population in the countries of the world, data from a sociological survey of young people in order to identify the level of awareness of the population about the ecological state of the region and the quality of urban construction.The article discusses the idea of creating eco-cities. It is concluded that it is necessary to legally consolidate the concept of «eco-city», the authors offer their own interpretation of it. Special attention is drawn to the particular importance of the environmental friendliness of people's thinking and a number of environmental-oriented recommendations are given that should be taken into account in the integrated development of territories. The study has shown that legislative consolidation of «eco-city» concept will simplify the process of implementation of programs aimed at greening of cities and integrated development of territories which is an essentially significant factor, taking into account the current environmental problems and the epidemiologic situation.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73863424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).156-166
N. Kolosova, V. Sergeev
Construction companies face barriers and challenges in adopting BIM, as there are no guidelines or best practices they could study and use in their activities. One of the most difficult and time-consuming tasks in designing construction projects is calculating the volume of earthworks, which sometimes has to be done in difficult climatic conditions. The article presents a study of using BIM technology and the development of a script in the visual programming environment «Dynamo», which will simplify this labour intensive process without losing its quality and saving time for other design tasks. The developed script can be used when calculating earthworks and studying their fill diagram in order to cut costs of performing initial construction works by designing marks on the Earth’s surface. It can be used in road building when plotting the most economically feasible route in terms of construction costs. The use of the developed script will significantly reduce the time of performing a big amount of same type repetitive operations when developing representative units or creating complex parametric geometry.
{"title":"Researching Transformation of Analytical Data Obtained from Visual Programming System «Dynamo» into Microsoft Excel Worksheets","authors":"N. Kolosova, V. Sergeev","doi":"10.17150/2500-2759.2021.31(2).156-166","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).156-166","url":null,"abstract":"Construction companies face barriers and challenges in adopting BIM, as there are no guidelines or best practices they could study and use in their activities. One of the most difficult and time-consuming tasks in designing construction projects is calculating the volume of earthworks, which sometimes has to be done in difficult climatic conditions. The article presents a study of using BIM technology and the development of a script in the visual programming environment «Dynamo», which will simplify this labour intensive process without losing its quality and saving time for other design tasks. The developed script can be used when calculating earthworks and studying their fill diagram in order to cut costs of performing initial construction works by designing marks on the Earth’s surface. It can be used in road building when plotting the most economically feasible route in terms of construction costs. The use of the developed script will significantly reduce the time of performing a big amount of same type repetitive operations when developing representative units or creating complex parametric geometry.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82518288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).221-229
A. Borovsky, Andrei Galkin
A new theoretical model of epidemic kinetics, which takes into account the latent incubation period of the disease in the form of time lagged terms, is viewed. The model takes into account four types of population members: the uninfected (non-immune), the actively infected, the recovered and acquired immunity, and the experienced a lethal outcome. The model considers the possibility of introducing anti-epidemic measures smoothly, as well as the presence of various types of infection of the uninfected contingent. Numerical calculations of the epidemic development show that the initial exponential growth of actively infected people after the introduction of quarantine measures is replaced by a decline in the epidemic curve within two — three weeks. Then, after three months, having a permanent source of infection, the epidemic enters a quasi-stationary mode of functioning. The quasi-stationary values statistics of actively infected individuals uniquely determines the size of the infection source. Calculations of the problem with a time-varying infection source describe the «second wave» of a separate intensity epidemic.
{"title":"Model of Quasi-Stationary Epidemic Kinetics","authors":"A. Borovsky, Andrei Galkin","doi":"10.17150/2500-2759.2021.31(2).221-229","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).221-229","url":null,"abstract":"A new theoretical model of epidemic kinetics, which takes into account the latent incubation period of the disease in the form of time lagged terms, is viewed. The model takes into account four types of population members: the uninfected (non-immune), the actively infected, the recovered and acquired immunity, and the experienced a lethal outcome. The model considers the possibility of introducing anti-epidemic measures smoothly, as well as the presence of various types of infection of the uninfected contingent. Numerical calculations of the epidemic development show that the initial exponential growth of actively infected people after the introduction of quarantine measures is replaced by a decline in the epidemic curve within two — three weeks. Then, after three months, having a permanent source of infection, the epidemic enters a quasi-stationary mode of functioning. The quasi-stationary values statistics of actively infected individuals uniquely determines the size of the infection source. Calculations of the problem with a time-varying infection source describe the \u0000«second wave» of a separate intensity epidemic.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87469123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).248-261
G. Rusetskaya, O. Gorbunova
Forestry in Irkutsk region features very low efficiency of forest resource exploitation. This works aims to estimate the amount of forest resource in the region, its condition and accessibility. These three data are taken as basis for the method of allowable cut as one of the key forest management tools. The article analyzes the types of lumber in various areas of the region and the dynamics of their exploitation according to the territory zoning, and provides a feasibility assessment of allowable cut development. The statistic reports of the regional Ministry of Timber Complex are used as information resource for the estimated planned and actual lumber exploitation in the forestry areas in seven zones of Irkutsk region. The analysis has revealed an ambiguity in the input data for calculating indicators of standing timber development. According to the study, the input value for logging in some forestry areas is overestimated, which leads to faster forest resource depletion. The authors state that, in the context of increasing the efficiency of forestry, the target indicators of the Timber Complex Development Programme 2019–2024 in Irkutsk region need revision, and the lumber management system requires further improvement.
{"title":"Implementation of Sustainable Lumber Management Principles in Irkutsk Region","authors":"G. Rusetskaya, O. Gorbunova","doi":"10.17150/2500-2759.2021.31(2).248-261","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).248-261","url":null,"abstract":"Forestry in Irkutsk region features very low efficiency of forest resource exploitation. This works aims to estimate the amount of forest resource in the region, its condition and accessibility. These three data are taken as basis for the method of allowable cut as one of the key forest management tools. The article analyzes the types of lumber in various areas of the region and the dynamics of their exploitation according to the territory zoning, and provides a feasibility assessment of allowable cut development. The statistic reports of the regional Ministry of Timber Complex are used as information resource for the estimated planned and actual lumber exploitation in the forestry areas in seven zones of Irkutsk region. The analysis has revealed an ambiguity in the input data for calculating indicators of standing timber development. According to the study, the input value for logging in some forestry areas is overestimated, which leads to faster forest resource depletion. The authors state that, in the context of increasing the efficiency of forestry, the target indicators of the Timber Complex Development Programme 2019–2024 in Irkutsk region need revision, and the lumber management system requires further improvement.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78299332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).129-139
S. Leonov
International practices show that for an effective development of society, it is necessary to find a consensus of the interests of the local community and the country. This is the reason why the low level of autonomy of local self-government in modern Russia is a significant problem, as it does not allow local governments and citizens to become active participants and initiators of transformations carried out at the municipal level. The study, carried out using the historical method of scientific knowledge, made it possible to analyze the thirty years of Russian experience in the making and reform of local self-government (LSG), to structure the prerequisites and identify five main stages of reform, which differ in the pace and content of reform transformations. In the course of the study, it was revealed that constitutional changes, while remaining formally neutral to local self-government, will require amendments of federal legislation for their implementation, which can give rise to a number of latent threats and undermine the principle of structural isolation and independence of local self-government bodies. In general, over the years of reforms, the legislative strengthening of the powers and rights of local self-government did not find adequate financial support, the real results of the reform are very different from the declared goals. The author substantiated proposals for improving the socio-economic component of the reform in the framework of the evolutionary approach.
{"title":"Structural and Financial Aspects of Local Government Reform in Russia. 30 Years of Experience","authors":"S. Leonov","doi":"10.17150/2500-2759.2021.31(2).129-139","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).129-139","url":null,"abstract":"International practices show that for an effective development of society, it is necessary to find a consensus of the interests of the local community and the country. This is the reason why the low level of autonomy of local self-government in modern Russia is a significant problem, as it does not allow local governments and citizens to become active participants and initiators of transformations carried out at the municipal level. The study, carried out using the historical method of scientific knowledge, made it possible to analyze the thirty years of Russian experience in the making and reform of local self-government (LSG), to structure the prerequisites and identify five main stages of reform, which differ in the pace and content of reform transformations. In the course of the study, it was revealed that constitutional changes, while remaining formally neutral to local self-government, will require amendments of federal legislation for their implementation, which can give rise to a number of latent threats and undermine the principle of structural isolation and independence of local self-government bodies. In general, over the years of reforms, the legislative strengthening of the powers and rights of local self-government did not find adequate financial support, the real results of the reform are very different from the declared goals. The author substantiated proposals for improving the socio-economic component of the reform in the framework of the evolutionary approach.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72956598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).197-207
Y. Kuzmin, Alexey Manzhigeev, L. Sanina
Currently, the leadership of Russia considers the expansion of economic, scientific and educational cooperation with Mongolia important, therefore, the study of modern Mongolian and world Mongolian studies, which formulate and determine further development of international relations, seems to be an urgent and contemporary task. The article describes the development trends of modern world and Russian Mongolian studies, poses topical issues that need to be resolved in the face of increasing geopolitical competition in Mongolia. It is an overview of the reports presented at the international scientific-practical conference «Mongolia of the 20th century and Russian-Mongolian relations: history and economy» dedicated to the 100th anniversary of the establishment of Russian-Mongolian diplomatic relations, which took place on May 28, 2021 in Irkutsk on the basis of the Baikal State University. The conference participants supported the idea of creating a «Biobibliographic Dictionary of Russian Researchers in Mongolia». It was proposed to include in the dictionary corpus not only the representatives of Russian Mongolologist, but also Turkologists, Sinologists, researchers of the history of Russia, as well as practitioners: diplomats, translators, military men, merchants, journalists who wrote studies on history, geography, economics, culture and art of Mongolia. Thus, scientific Russian-Mongolian cooperation continues successfully, new joint publications, round tables, and scientific conferences are being planned.
{"title":"Mongolia of the Twentieth Century and Russian-Mongolian Relations: Based on the Materials of the Conference Dated May 28, 2021","authors":"Y. Kuzmin, Alexey Manzhigeev, L. Sanina","doi":"10.17150/2500-2759.2021.31(2).197-207","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).197-207","url":null,"abstract":"Currently, the leadership of Russia considers the expansion of economic, scientific and educational cooperation with Mongolia important, therefore, the study of modern Mongolian and world Mongolian studies, which formulate and determine further development of international relations, seems to be an urgent and contemporary task. The article describes the development trends of modern world and Russian Mongolian studies, poses topical issues that need to be resolved in the face of increasing geopolitical competition in Mongolia. It is an overview of the reports presented at the international scientific-practical conference «Mongolia of the 20th century and Russian-Mongolian relations: history and economy» dedicated to the 100th anniversary of the establishment of Russian-Mongolian diplomatic relations, which took place on May 28, 2021 in Irkutsk on the basis of the Baikal State University. The conference participants supported the idea of creating a «Biobibliographic Dictionary of Russian Researchers in Mongolia». It was proposed to include in the dictionary corpus not only the representatives of Russian Mongolologist, but also Turkologists, Sinologists, researchers of the history of Russia, as well as practitioners: diplomats, translators, military men, merchants, journalists who wrote studies on history, geography, economics, culture and art of Mongolia. Thus, scientific Russian-Mongolian cooperation continues successfully, new joint publications, round tables, and scientific conferences are being planned.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78291698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).262-270
L. Baldanova, Y. Zorina
Monitoring data are the basis for making management decisions, including those in the field of forest conservation and restoration. In this context, it is relevant to conduct research aimed at improving forest inventory operations with the use of Earth remote sensing methods, to solve the problems of reforestation and state forest inventory. The purpose of the study is to show the need for digitalization of the state forest inventory using Earth remote sensing methods. The results of the practical use of such methods for updating data on the reforestation fund are presented by the case of five forest districts of the Irkutsk region. When collecting, processing and presenting the research results, methods of aerospace monitoring and interpretation of space images of the Earth were used. Materials processing modules in remote sensing systems and geographic information systems were also used, which make it possible to assess the quality of automated classification. As a result of the study, the necessity of using Earth remote sensing methods in order to increase the efficiency of management decisions in the field of reforestation was substantiated. It was also proved that for forest regions with significant forest areas, digitalization of the state forest inventory is the most effective and low-cost method of obtaining relevant, complete and reliable data on the state of forest lands.
{"title":"Digitalization of State Inventory of Forests as a Tool of Updating the Reforestation Fund","authors":"L. Baldanova, Y. Zorina","doi":"10.17150/2500-2759.2021.31(2).262-270","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).262-270","url":null,"abstract":"Monitoring data are the basis for making management decisions, including those in the field of forest conservation and restoration. In this context, it is relevant to conduct research aimed at improving forest inventory operations with the use of Earth remote sensing methods, to solve the problems of reforestation and state forest inventory. The purpose of the study is to show the need for digitalization of the state forest inventory using Earth remote sensing methods. The results of the practical use of such methods for updating data on the reforestation fund are presented by the case of five forest districts of the Irkutsk region. When collecting, processing and presenting the research results, methods of aerospace monitoring and interpretation of space images of the Earth were used. Materials processing modules in remote sensing systems and geographic information systems were also used, which make it possible to assess the quality of automated classification. As a result of the study, the necessity of using Earth remote sensing methods in order to increase the efficiency of management decisions in the field of reforestation was substantiated. It was also proved that for forest regions with significant forest areas, digitalization of the state forest inventory is the most effective and low-cost method of obtaining relevant, complete and reliable data on the state of forest lands.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80203433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-09DOI: 10.17150/2500-2759.2021.31(2).216-220
N. Antipina
The intertemporal problem of consumer’s behavior is the basis of modern models. The interest in this kind of problems is determined by the attempt to widen the range of directions within which it is possible to conduct additional mathematical research in the theory of consumption. The article considers the problem of maximizing discounted utility derived from an entrepreneur’s consumption due to optimal allocation of monetary means which he gets as profit from his production company and interest on assets. The difference of this problem from the basic dynamic problem of consumer’s behavior lies in the fact that an entrepreneur as an individual acts in two roles: as a consumer and as a manufacturer. Furthermore, the problem is characterized by two peculiarities: a distinctive budget limitation which includes production function and reveals an irregular differential relation and also by the presence of mixed boundary conditions on the value of capital and assets. Formalization of the problem as a dynamic optimization model is given. It was studied with the use of mathematical analysis and the means of the optimal control theory. According to parameter correlations of the model, two strategies were identified which can be recommended for an entrepreneur as the most optimal ones. The model that was developed in the course of research can serve as a tool for taking decisions because it suggests optimal strategies of allocation of financial means in an enterprise which leads to maximization of consumption utility.
{"title":"Intertemporal Optimization Model of Entrepreneurs Behavior","authors":"N. Antipina","doi":"10.17150/2500-2759.2021.31(2).216-220","DOIUrl":"https://doi.org/10.17150/2500-2759.2021.31(2).216-220","url":null,"abstract":"The intertemporal problem of consumer’s behavior is the basis of modern models. The interest in this kind of problems is determined by the attempt to widen the range of directions within which it is possible to conduct additional mathematical research in the theory of consumption. The article considers the problem of maximizing discounted utility derived from an entrepreneur’s consumption due to optimal allocation of monetary means which he gets as profit from his production company and interest on assets. The difference of this problem from the basic dynamic problem of consumer’s behavior lies in the fact that an entrepreneur as an individual acts in two roles: as a consumer and as a manufacturer. Furthermore, the problem is characterized by two peculiarities: a distinctive budget limitation which includes production function and reveals an irregular differential relation and also by the presence of mixed boundary conditions on the value of capital and assets. Formalization of the problem as a dynamic optimization model is given. It was studied with the use of mathematical analysis and the means of the optimal control theory. According to parameter correlations of the model, two strategies were identified which can be recommended for an entrepreneur as the most optimal ones. The model that was developed in the course of research can serve as a tool for taking decisions because it suggests optimal strategies of allocation of financial means in an enterprise which leads to maximization of consumption utility.","PeriodicalId":9341,"journal":{"name":"Bulletin of Baikal State University","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87951880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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