The paper presents research results on mobile learning of English for specific purposes to ecology students with the help of the Quizlet learning platform. The study was conducted in four stages: the students were surveyed about their mobile devices, and then they underwent an experimental mobile learning process during one term. The next stage was to work with authentic texts, during which the skills developed for reading comprehension of authentic specialized texts were assessed. In order to incorporate subjectspecific vocabulary into professional discourse, in-class discussions were organized with students at the same stage of the study. The students were assigned to agree or disagree with the statements, prove their point, make arguments using familiar vocabulary on these topics. Such classroom discussions have shown that the subject-specific vocabulary the students mastered in the process of mobile learning is active. In our opinion, this is a very important result of mobile learning. The students also note that it is now easier for them to make up statements on professional topics and participate in conversations after mobile training. At the final stage, the students were surveyed once again in order to clarify their impressions of mobile learning. The paper shows the students are sufficiently equipped with mobile technologies and highly motivated to m-learning. The objective test results and a high level of accuracy when doing followup activities and final tests indicate that mobile learning has increased the effectiveness of teaching ESP. Mobile devices and, above all, smartphones can form a personalized learning environment which is motivating and challenging at the same time. Employment of m-learning tools in ESP instruction, besides increasing foreign language proficiency, enhances the levels of students' satisfaction and motivation which are crucial for professional foreign language communication throughout life.

The article discusses the functional planning and territorial aspects of the transformation of the city environment in Russian cities at the current stage of socio-economic development. Creating a comfortable city environment has been declared a strategic objective in Russia at the federal level since 2016. New standards of comfort affect the competitiveness of cities in the struggle for human capital and investment. The implementation of qualitative transformations of the city environment at the local level requires an understanding of the local urban context and the general directions of the territorial development of cities. The study is devoted to identifying the main directions of transformation of the city environment. Three main directions of transformation of the city environment are identified that allow cities to have a comfortable city environment. The study was conducted on the example of the Kazan agglomeration.

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This article aims at understanding the environmental problems in the Southeastern part of Nigeria and how they affect public activities and values. It is meant to highlight the standard of living, environmental conditions, and the possible solutions with challenges to sustaining the environment. The Southeastern part of Nigeria is becoming heavily influenced by climate change. Problems and difficulties are stretching from persistent flooding to destruction of natural habitat and environmentally related health issues. In other words, this article answers questions related to environmental problems and reveals the reason why there are frequent occurrences of these problems. Another crucial part is in the explanation of the social behaviour and complex risks associated with ignorance of indirect human activities, focusing more on the issues which could be in the water, soil, and air. In concerns towards environmental problems in Southeastern Nigeria, this article will lay more emphasis on the most persistent environmental issues and concerns affecting these areas and how to manage them.

The purpose of the study is the definition of scientifically based principles of planning reorganization of the city of Naberezhnye Chelny. The main results of the study are the development of a program of urban development of the city territory on the basis of the identified problems and limitations, the definition of key tasks in the spatial and territorial development of the city of Naberezhnye Chelny. Significance of the results for architecture and urban planning consists in the fact that the methodological principles of the planning reorganization of the city as the basis for the development of the strategic master plan of the city of Naberezhnye Chelny are revealed.