ABSTRACT
The main goal of the paper is to evaluate the perception and acceptance of change by human resources in companies in Slovakia and to propose specific recommendations to increase the involvement and active approach of business representatives in the interest of business sustainability. Based on the set goal, the issue of perception and attitudes of employees were evaluated through data obtained by a questionnaire survey through a sample survey in 816 companies operating in the Slovak Republic. The obtained data were analyzed using association analysis by application of the independence test based on formulated hypotheses and the found dependencies were presented by correspondence analysis. Innovative activities of companies do not always have to be perceived only positively by employees and it is also appropriate to consider the opposite behavior of employees. To minimize adverse events, we recommend companies formulate appropriate strategies to reduce and overcome the effects of negative attitudes to organizational change and then implement them appropriately, which is essential for the successful implementation of innovative practices.
ABSTRACT
The main aim of the study was to investigate the chemical composition, antioxidant, antimicrobial, and antibiofilm activity of Citrus aurantium essential oil (CAEO). The biofilm profile of Stenotrophonomonas maltophilia and Bacillus subtilis were assessed using the mass spectrometry MALDI-TOF MS Biotyper and the antibiofilm activity of Citrus aurantium (CAEO) was studied on wood and glass surfaces. A semi-quantitative composition using a modified version was applied for the CAEO characterization. The antioxidant activity of CAEO was determined using the DPPH method. The antimicrobial activity was analyzed by disc diffusion for two biofilm producing bacteria, while the vapor phase was used for three penicillia. The antibiofilm activity was observed with the agar microdilution method. The molecular differences of biofilm formation on different days were analyzed, and the genetic similarity was studied with dendrograms constructed from MSP spectra to illustrate the grouping profiles of S. maltophilia and B. subtilis. A differentiated branch was obtained for early growth variants of S. maltophilia for planktonic cells and all experimental groups. The time span can be reported for the grouping pattern of B. subtilis preferentially when comparing to the media matrix, but without clear differences among variants. Furthermore, the minimum inhibitory doses of the CAEO were investigated against microscopic fungi. The results showed that CAEO was most active against Penicillium crustosum, in the vapor phase, on bread and carrot in situ.
