Statement of the problem. One of the postulates of the modern cognitive-discursive paradigm is the thesis about the variability of structure and content of the concept. The variability of the concept is influenced by many factors: temporal, socio-cultural, discursive, ecological, political, and individual-psychological. The relevance of the study of variability of the concept is due to a number of reasons: 1) the need for theoretical justification of the heterogeneity of concepts within the same linguoculture; 2) the possibility of revealing the ratio of basic and variable informational and axiological structures in the content of the concept; 3) the need to establish the connection of cognitive mechanisms with worldview and with the emotional reflection of the individual and / or social groups; 4) the importance of studying the factors of “constructing reality” by actualizing those or other sides of the concept. The purpose of the article is to consider the variation of the value and semantic content of the “Boguchanskaya HPP” concept, to determine the causes and factors of variation of units of expression of figurative and value layers of this concept. In order to achieve this goal, linguistic, stylistic and linguopragmatic means of expression of the “Boguchanskaya HPP” concept in different types of discourse are analyzed. The material of the research. The empirical basis of the study is the data of the National Corpus of the Russian language; materials of publications in the media about Boguchanskaya HPP, placed in the section “Press” on the main website of the hydropower plant (http://www.boges.ru/press-tsentr/smi-o-boguchanskoy-ges/publikatsii-v-presse/); publications of the website “Dam. No!” (http://www.plotina.net/); transcripts of interviews and reminiscences of displaced people from the flood zone of Boguchanskaya HPP as well as people permanently residing in Boguchansky and Kezhemsky districts of the Krasnoyarsk region. As a result of a sample listing of written and oral texts about Boguchanskaya HPP, more than 400 contexts of conceptual, figurative and axiological attributes of this concept were written out. The research methodology is as follows: in order to achieve the goal the method of conceptual analysis developed by representatives of the linguocultural direction, as well as the interpretive analysis and the method of linguistic description of the results are used. Research results. The “Boguchanskaya HPP” concept refers to dynamic, actively translated concepts of national linguoculture. It is distinguished by high modifying potential, discursive variability of its structure, and value and semantic content. Variability of the content of this concept is manifested, first of all, in different degrees of relevance of those or other conceptual features at different stages of its life cycle, as well as ambivalence of evaluations which determine the content of axiological layer of the “Boguchanskaya HPP” concept in conversational discourse, ecological Internet discourse and official mass-media discourse. The reason for the variability of the value and semantic content of the concept are socio-economic, socio-cultural and civilizational factors.
Evaluation of pyrite and pyrrhotite in concretes
