This paper discusses the composting process as one of the methods of biodegradable waste management. It presents the fundamentals of the composting process, an overview of raw materials for composting, the basic characteristics of composting products, as well as an example of composting within the public utility company "Mediana" from Niš.
Galvanization process requires the use a large amount of water and produces wastewaters that are usually purified by conventional cost-effective procedure. This kind of treatment generates waste sludge which becomes a hazardous if is not properly stabilized. Hence, the aim of this paper is to investigate the characteristics of galvanic sludge through the inspection of its physicochemical parameters and consider stabilization of waste materials, including waste glass and aluminum slag by their conversion into an eco-designed material referred to as glass ceramics. The obtained products have been studied by X-ray diffraction (XRD). XRD analyses confirmed occurrence of chemical and phase transformations in treated galvanic sludge and binding of toxic metals (Al 3+ , Cr 3+ , Cu 2+ , Cd 2+ , Ni 2+ , Pb 2+ , Zn 2+ ) into crystalline phases and very sTab. structure.
BACKGROUND: Psychosocial risks and work-related stress are one of the most complex, most significant and most challenging problems that organizations around the world are facing. Stress negatively affects all participants in the organization and significantly contributes to negative health consequences and economic outcomes. OBJECTIVE: With timely identification and adequate assessment of psychosocial risks, it is possible to create healthy workplaces and healthy organizations where employees are satisfied and motivated. The paper will present the results of the research of psychosocial risks on a large sample of respondents in the Republic of Serbia. METHODS: A questionnaire was distributed to 1,212 participants of which 1,140 answered all the questions asked. Data from the questionnaire were analyzed using multiple regression analysis, Kolmogorov-Smirnov test, Spearman’s correlation coefficient and Pearson’s chi-square test (χ2). RESULTS: The results of multiple regression analysis showed that all psychosocial risks taken together are statistically significantly (p < .001) and explain 24%of the variance of the criteria. CONCLUSIONS: Psychosocial risks identified as statistically significant predictors are Labor Demands, Interpersonal Relations, Lack of Support, Work Role and Job Uncertainty. All predictors are statistically significant predictors at the level.01.
Abstract:The term "sustainable" can be found in both science and practice. As a global concept of development, it was accepted at the Conference in Rio de Janeiro in 1992 in order to overcome and fi nd a possible way of dealing with problems connected to the development of contemporary civilization. Three dimensions of sustainable development are usually mentioned: economic, social and ecological. The paper points out the signifi cance of the fourth dimensioncultural dimension, which is not only signifi cant for reaching development in the real sense of the world, but it also represents the basis for the development of local communities. The cultural dimension respects the particularities of local communities and emphasizes the maintenance of the cultural and national variety which is of special signifi cance for multicultural societies.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.