ALBERT

Description: In the last few years there has been a fundamental change in the approach to the issue of creativity in economics, and it is increasingly referred that the era of the economics of creativity has started. Currently, it is claimed that no matter how much knowledge one possesses, it is important how it is creatively processed and how it will be used. Both theoreticians and practitioners agree on its role as a source of competitive advantage in the micro and macroeconomic sphere. The aim of the article is to consider cognitive, theoretical and methodological as well as empirical issues (questionnaire research) on the development of creative life orientations of the creative class in creative cities. The research results allow us to present a recommendation for managers managing creative cities. They are for example: tolerance for new and unknown things; cooperation that are made by outstanding individuals and social support, acceptance of creativity and creators.

Description: The photochemical behavior of doxazosin (DOX) in simulated environmental conditions using natural waters taken from local rivers as a solvent was studied. The chemical characteristics of applied waters was done and a correlation analysis was used to explain the impact of individual parameters of matrix on the rate of the DOX degradation. It was stated that DOX is a photoliable compound in an aqueous environment. Its degradation is promoted by basic medium, presence of environmentally important ions such as Cl−, NO3−, SO42− and organic matter. The kinetics of DOX reactions with OH− and SO4− radicals were examined individually. The UV/H2O2, classical Fenton and photo-Fenton processes, were applied for the generation of hydroxyl radicals while the UV/VIS:Fe2(SO4)3:Na2SO2 system was employed for production of SO4− radicals. The obtained results pointed that photo-Fenton, as well as UV/VIS:Fe2(SO4)3:Na2SO2, are very reactive in ratio to DOX, leading to its complete degradation in a short time. A quantitative density functional theory (DFT) mechanistic study was carried out in order to explain the molecular mechanism of DOX degradation using the GAUSSIAN 09 program.

Description: The growing importance of creative knowledge workers as a resource of particular significance for the growth of organizations is becoming one of the greatest challenges of the knowledge-based economy. Thus, the growing role of creative organizations contributes to building the economic potential of cities, regions, countries, but also of various organizations operating in the market. The development of civilization at its current stage has always been a source of this type of activity. Hence, the issue of understanding how creative knowledge workers operate has been and continues to be addressed by researchers around the world in recent years. The topic presented in this article on the knowledge and creativity of employees and their impact on the growth of creative organizations to a certain extent responds to this demand. The aim of the article is to clarify and extend the conceptualization in terms of creative activities performed by knowledge workers and the correlations with their characteristics and with knowledge initiatives. Achieving the set aim would allow to indicate that modern development depends on the proper generation of knowledge and creativity and the resources offered by an organization to facilitate its absorption in terms of growth prospects. The article reviews the research on cognitive, theoretical, methodological, and empirical issues regarding the development of creative knowledge workers employed in creative organizations as well as characteristics of workers and knowledge initiatives introduced in organizations. The analysis of the literature allowed to establish a research framework and indicate which knowledge initiatives are important and which characteristics of selected employees may be related to creative activities. Empirical verification was carried out through the analysis of basic descriptive statistics with Spearman’s ρ rank correlation and the relationship between nominal and ordinal variables using chi-square tests. The results of the study revealed significant relationships between the performance of creative activities and certain characteristics of knowledge workers as well as between the performance of creative activities and the introduction of knowledge initiatives. It turned out that the knowledge of the nature of the connections between the mentioned activities and knowledge initiatives is the basis for determining which knowledge initiatives in the case of a given creative organization will bring the best results in the form of taking effective creative activities by knowledge workers. Moreover, a person who performs creative activities has only some of the characteristics presented in this article. The research results are particularly relevant to the development of creative knowledge workers employed in creative organizations. Setting out guidelines aimed at changing this state of affairs and the research conducted allowed the identification of areas for improvement in order to ensure that they develop more effectively and meet the demands of competitiveness, generating more innovative ideas.

Description: Textile effluent containing azo dyes such as C.I. Acid Violet 1 (AV1) can be degraded to toxic aromatic amines in the environment. Thus, there is a legitimate need to treat such effluents before they are discharged to surface waters. Two methods were proposed to remove AV1 from aqueous solutions: adsorption and advanced oxidation processes (AOPs). The sorption capacity of the strongly basic anion exchanger Purolite A520E of the polystyrene matrix determined from the Langmuir isotherm model was found to be 835 mg/g, while that of Lewatit S5428 of the polyacrylamide matrix Freundlich model seems to be more appropriate for describing the experimental data. The pseudo-second-order kinetic model and external diffusion are the rate limiting steps of adsorption. The removal efficiency of AV1 by the anion exchangers was higher than 99% after 40 min of phase contact time. AOPs involved the usage of hydrogen peroxide and peracetic acid (PAA) as oxidizing agents, while Fe2+ and simulated sunlight were used as oxidizing activators. AV1 oxidation followed the pseudo-first-order kinetics, and the systems with the highest values of the rate constants turned out to be those in which Fe2+ was present. The efficiency of oxidation measured by the degree of decolorization in the systems with Fe2+ was higher than 99% after 10–60 min. AV1 mineralization was slower, but after 120 min of oxidation it was higher than 98% in the H2O2/Fe2+, PAA/Fe2+ and PAA/Fe2+/sunlight systems.