The handling of some chemical substances, as is the case of Mercury used in the determination of the contraction characteristics of soils, becomes dangerous waste at the end of the test process, which requires an adequate management having as a reference the established measures in the legislation and complying with the legal and applicable requirements in this matter. In the present work the characteristics of the mercury, the measures for its use, transportation, and/or storage, as well as the risks to the occupationally exposed workers, are related in the Laboratories of the Applied Research Company. The objective of this research is to raise the culture in the procedures for the handling of chemical substances and hazardous waste, in the use and care of the means of individual protection, as well as compliance with everything established in the procedures for the realization of activities related to the use of mercury to form an environmental awareness focused on achieving an excellent quality of life in the workplace and contribute to the protection of the environment.
The psychological overcoming of trainers in Karate-Do the province of Santiago de Cuba still does not meet the demands of contemporary martial-sports practice, which becomes the presence of an epistemological gap in relation to theoretical knowledge-practical and the acquisition of professional skills, showing flaws in their professional performance, constituting this the main problem of research. For this reason, it is proposed as a practical contribution an alternative for professional improvement aimed at the preparation of the psychological component in trainers Karate-Do, aimed at eliminating the inadequacies that are manifested in the practice of this sport. For this, scientific methods of the theoretical, empirical, mathematical-statistical level and techniques such as interview, survey and psychological tests were used. The theoretical references of the preceding authors constitute valuable contributions whose results enrich the systematic work of martial artists, by attending to the various characteristics of athletes during the training stage and the competitive.
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