The purpose of this study was to evaluate the content of selected elements and physicochemical indicators of the honey of Apis mellifera. Samples of blossom, blend and honeydew honeys were randomly obtained from the Eastern, Western and Central of Slovakia. Contents of elements were measured with the use of flame atomic absorption spectrophotometry (FAAS) method and anodic stripping voltammetry (ASV) method with CGMDE as working electrode. The content of heavy metals (mg/kg dry weight) ranged as follows: Zn 0.25-3.82; Cu 0.12-1.37; Ni 0.06-0.60; Mg 0.10-50.43; Ca 10.32-87.21; Pb and Cd were under detectable limit (0.001 mg/kg). The physical and chemical indicators ranged as follows: moisture (%) 16.00-19.80; HMF (mg/kg) 10.00-40.00; pH 3.58-5.12; conductivity (mS/m) 13.45-99.12 and a(w) 0.456-0.659. Significant difference (P < 0.05) for elements and physicochemical indicators was analyzed. Significant correlations between Cu - Zn, Cu - Ni, Cu - Mg, Ca - Zn and Ca - Mg were detected. With reference to Codex Alimentarius of Slovakia, maximal levels of heavy metals content and selected physicochemical properties were not exceeded. On average, the content of trace elements decreased in the order: Ca > Mg > Zn > Cu > Ni and physicochemical indicators decreased: conductivity > HMF > moisture > pH > a(w).
Faculty of Engineering of the Slovak University of Agriculture belongs among the six of its faculties. This faculty is attended by students from different types of secondary schools. The study outlines of the faculty contain two semesters in mathematics which should provide students with a theoretical base for further study of major subjects. Students learn here the basics of differential and integral calculus. In the subject of Mathematics 2 they learn to evaluate indefinite and definite integrals. In our paper we focus on how students cope with this part of mathematics and what causes most problems in this area.
The paper sheds light on the university preparation of future English teachers in Slovakia. Since the requirements for becoming an English teacher differ around the world, the first part of the paper describes and explains the requirements and career development of English teachers in Slovakia. Twelve Slovak faculties provide university preparation of future English teachers, and this research analyses their curricular offer. The courses offered to future English teachers are firstly categorized into linguistic, intercultural, methodological, and literary groups. As teaching practice becomes an essential part of the teacher preparation, the hours devoted to the teaching practice were counted at each institution. The tables and graphs show the sums of the courses and allocated hours. Thus, this paper brings an overview, comparison, and differences in the university preparation of future English teachers in Slovakia. Even though this survey shows only a quantitative point, this research results can be considered as one of the quality indicators in the university preparation of future English teachers in Slovakia
People have been migrating for work and better life and social environment for years. Nowadays migration is taking on newer dimensions. We are especially speaking of economic migrants as well as about people from so called third countries, in which living conditions have worsened due to impact of climate changes and worse social conditions caused by higher unemployment as well as unstable political affairs and wars. In the paper we define migration, state its causes, negatives and positives. In the main part of the paper we examine how the number of migrants in Slovakia has changed lately and from which countries they come from. We found out that ratio of foreigners living in Slovakia has been changing. A couple of years ago people from European countries prevailed in Slovakia in comparison with people from so called third countries, now the ratio is becoming equal.
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