A Cloud point extraction (CPE) procedure was presented for preconcentration of lead(II) ions, after complexation by 18-crown-6 (18C6) and extraction with Triton X-100 at proposed experimental conditions. After separation of surfactant - rich phase, content of Pb(II) ions in remaining solution was measured by Flame Atomic Absorption Spectrometry (FAAS). The experimental conditions such as pH, temperature, concentration of Triton X-100, concentration of 18C6, incubation time, type and concentration of added electrolyte, were evaluated. Results showed that among investigated electrolytes (NaCl, Na2SO4 and Na2CO3) the amount of 0.9 mol/L Na2CO3 lowers cloud point temperature of Triton X-100 to 22?C (room temperature during the experiment), thus simplifying the extraction procedure. After an incubation time of 5 minutes and using the concentration of 1.2?10-3 mol/L Triton X-100 and 1.5?10-4 mol/L 18C6 (1:1 stoichiometric ratio for 18C6:Pb), 60% of lead (II) ions were efficiently removed from investigated solution.

Some physicochemical characteristics of black and white mulberry genotypes from and Herzegovina.-Genetika, Vol 51, No.3, Recently, Therefore, the focus of this research is to determine some physicochemical properties of mulberry fruits from the area of northwest Bosnia, where significant amount genetic resources of mulberries are available. In total, six genotypes of black and eight genotypes of white mulberries were analyzed. From physical properties, the fruit mass, fruit height, fruit width and length were determined. Black mulberries are found richer than white mulberries for most of the searched parameters. The average water, soluble solids, total acidity, total sugar, ash, vitamin C, total phenol and total anthocyanin of black mulberry genotypes were 86.46%, 14.88%, 0.08%, 7.30%, 0.68%, 45.84 mg/100 g FW (fresh weight), 50.67 mg GAE/100 g FW and 562.42 cyanidin-3-glucoside mg/g. These values were 82.49%, 17.51%, 0.09%, 7.34%, 0.78%, 43.79 mg/100 g FW and 29.49 mg GAE/100 g FW for white mulberries. The obtained results can serve for future steps in the breeding of these species, and because of the high quality fruit characteristics, they can affect the conservation of these species due to the increasing genetic erosion of this species. PC3 PC4

. Talent management is considered to be one of the most popular management topics, both in theory and in practice. The term "talent" dates back to ancient times, while the term "talent management" was first mentioned in 1998, when a group of McKinsey consultants published a study titled "The War for Talent", which highlighted the positive impact of talent on organizational excellence. Both talent and talent management can be defined in numerous ways. Simply stated, talents represent the "right people", which refers to individuals who have key competencies a company needs, while talent management can be defined as getting the right people in the right roles at the right time. According to the survey conducted in Bosnia and Herzegovina, the terms "talent" and "talent management" are familiar to most respondents. Additionally, most respondents believe that talent management improves employee motivation and performance, as well as the performance of the entire enterprise. The research also showed that in most Bosnian companies, talent management practices are not implemented, and this applies to special programs for talented employees as well. The majority of survey respondents also expressed that they would appreciate working in talent focused organizations.

A contingency perspective of knowledge management, as one of the popular ways of promoting decision making capabilities, recognizes the need for a fit between knowledge management solutions (KMS) and decision-making contexts which they support. In order to determine the best fit, a field survey was carried out to investigate the impact of two different types of KMS (technical and social) on decision makers' behavior and performance in different decision contexts (simple and complex). According to the results, there is a partial support for the contingency view. As expected, social KMS appears as the best fit for complex contexts, based on subjects' superior performance from comparable adoption of both KMS. In contrast, the results suggest that both KMS were an equally good fit for simple contexts, based on similar levels of subjects' performance, but social KMS was preferred in terms of adoption. These findings contribute to much necessary empirical evidence for research and provide useful guidance for practice. However, their limitations necessitate further study.