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The purpose of this study is to determine the peculiarities of migratory activity of the population in the 21st century. In this study, attention will be paid to the main factors determining the migratory activity of the population. Determining the key factors will provide a practical opportunity for describing and analyzing extremely dynamic and constantly changing processes by the degree and intensity of their manifestation in the changing world. The monitoring of migration flows will be carried out in a retrosp...

The article shows the changes in the population on the present territory of the Republic of Tatarstan from ancient times to the end of the XIX century. The article pays a special attention to the peculiarities of settlement before including the Kazan Khanate to the Russian state. It was at that time when a constant network of settlements began to emerge on the territory of present Tatarstan. The paper investigates the ethnic aspects of the historical and geographical settlement and identifies the main types of dis...

One of the main goals of the state economic policy is to increase the level of the human wellbeing. Population is an important part of any economy, demographic policy is an important part of economic policy. Nevertheless, the directions of this policy differ significantly in all the countries depending on the prevailing conditions. In some countries, programs aimed at population growth are the priority, in others the policy is focused on population regulation. Over the past 50 years, the world’s population has inc...

The aim of this work is to build a mathematical model of the dynamics and mutual influence of the population and environmental factors – pollution of the atmosphere and surface water bodies – on an urbanized territory. The paper proposes a simulation model of dynamics and interaction of external and internal directions in biosphere-compatible city activities. The external direction of city’s activities is removal of resources from the Biosphere and emission of waste polluting water, air and soil into it. The inter...