The article consideres family as a social community, family relationships and its role in the development of society. The article also defines typology and factors of inter-ethnic marriages, their trends and patterns.

This article describes the methods of your household waste disposal and obtaining of plastics based on styrofoam dissolved in gasoline.

Pedagogical conditions to use a learner-centered learning technology in the vocational education of students based on the work experience of the Agrotechnical University in training future specialists of different educational systems are considered in the article. The organization of students’ learning activity based on learner-centered learning technology application has a significant influence on students’ personality development in the vocational education of students. The analysis of famous scientists’ concepts in this field as well as the analysis of traditional and modern paradigms in education is presented in the article. These directions make a contribution to determination of positive pedagogical conditions for a learner-centered learning technology.

The variants of the use of carbon as a heat-generating material in the agro-industrial complex are highlighted. This will significantly save energy, improve the environment, reduce the cost of operation, repair and maintenance of buildings and structures.

Main problem: This study is devoted to the study of the problems of using special expertise in the investigation of crimes related to human trafficking. The use of specialized expertise is an integral element in the system of investigative actions carried out in cases of human trafficking. In this study, the authors consider the features of the production of forensic examinations in the investigation of crimes related to human trafficking in the Republic of Kazakhstan. In the study, the authors consider the most typical types of forensic examinations that are conducted in criminal cases of human trafficking. Based on the analysis of scientific literature, as well as the survey of practitioners engaged in the fight against human trafficking and the analysis of criminal cases of human trafficking, practical recommendations for criminal prosecution authorities on the most effective conduct of forensic examinations in criminal cases of this category are proposed. The purpose of this study: to study the tactical features of the production of forensic examinations in the investigation of human trafficking, as well as the features of the use of special expertise. Methods: The methodological basis of this study is the dialectical method of cognition of social and legal phenomena, as well as system-structural, comparative-legal, logical-theoretical and private scientific methods of study. To achieve the objectivity of the research results, these methods were applied comprehensively. Results and their significance: The use of forensic expertise in the investigation of human trafficking is essential for the detection and investigation of these crimes. The study notes that the following types of forensic examinations are among the most common in the investigation of this category of criminal cases: medical examination, biological examination, handwriting examination, phonoscopic examination and odorological examination. The subject of the investigation must carefully understand the tactical features of the production of certain forensic examinations. The practical recommendations proposed by the authors of the study on the appointment and production of forensic examinations considered in the study are important for the successful investigation of the facts of human trafficking, but at the same time they have a recommendatory value and can be modified taking into account the specifics of a particular criminal case.

On the territory of the Northern industrial zone of Pavlodar in the area of the industrial wastewater reservoir «Bylkyldak» in some areas of the earth there is soil contamination with mercury, exceeding the MPC for mercury (2.1 mg/kg) by 500 times. The total mass of mercury dispersed in the surface layer of soils is 2.8 tons. The mass of contaminated soil is approximately 208,000 tons. Pollution of the territory is historical. The purpose of the article is to determine the efficiency of chemical binding (immobilization) of mercury in the soil with the Japanese drug Denite® in real field conditions of the territory of mercury contamination in the Northern industrial zone of Pavlodar using an experimental study; to determine the stability of insoluble mercury compounds formed by the preparation at extreme winter and summer temperatures and seasonal fluctuations in open ground. Soil samples were taken for the study at 11 points in the centers of mercury pollution. Laboratory studies were carried out in an accredited analytical laboratory of the Testing Center of JSC Caustic. Soil samples were treated with Denite®, the preparations obtained were stabilized, and water extracts were prepared. The content of mercury in soils, extracts from them, and plants was determined by the atomic absorption method on a RA-915+ spectrometer equipped with RP-91 and RP-91S attachments. As a result of research, the effectiveness of Denite® in the chemical binding of mercury in the soil has been proven and its optimal dosages have been determined. As a result of the positive tests of the technology of chemical immobilization of mercury, the prospect of a practical solution to the issue of demercurization of mercury-contaminated soil on the territory of the Northern industrial zone appeared.