The aim of this study is to determine the differences between the medallists and non-medallists in male and female artistic gymnastics at the Olympic Games from 1996 to 2016. Basic procedures: Data concerning the athletes were obtained from the “Official documents of the International Olympic Committee” which include the athlete’s date of birth and date of competing. The total number of analysed OG participants in men’s artistic gymnastics amounted to n = 419 and the women’s artistic gymnastics was n = 417. Main findings: With men the t test for small independent samples has determined statistically significant differences between medallists and other competitors in 2000 and 2012. Among women no significant statistical differences have been found in all the mentioned variables. Conclusions: The differences between male medallists and non-medallists are manifested through the age of the competitors: 2.57 years in 2000 and 3.57 years in 2012. Compared to other OG a higher level of homogeneity and smaller age difference is noticeable. In difference to men, women had no similar differences within a period of 20 years. In artistic gymnastics in the last couple of years there is a recurring trend of a late specialisation because with each new scoring Code of Points the conditions demanded from the competitors become harder.

The study tries to explain the influence of regional affiliation on employees’ perception of tourism policy in the sector of cultural tourism. The main aim is to explore whether there is a difference between regional affiliations of employees and employees’ perception of tourism policy in the sector of cultural tourism in Montenegro. The survey was conducted using the interviewing, and the main statistical procedures were factor analysis and multivariate analysis of variance. Research outcome is a significant difference between employees in the northern and the coastal region of Montenegro, in the employees’ perception of the importance of measures and activities of tourism policy in the sector of cultural tourism. However, that difference could not significantly influence tourism policymaking process and the quality of specific tourism policy, which is intended for development of cultural tourism in Montenegro. Most of the significant differences depend on measures and activities, which do not directly influence the growth and development of cultural tourism that way. The study is inspired by the Erasmus+ CULTURWB project.

This paper presents an implementation of adaptive dual current mode control (ADCMC) on non-inverting buck-boost converter. An experimental verification of the converter operation with the proposed ADCMC has been performed in steady state and during the step disturbances in the input voltage and the load resistance. The given experimental results confirm the effectiveness of the proposed control method.

polymorphism prevalence in general population of six Balkan The aim of this study was to investigate the prevalence of RR, RX and XX genotypes of rs1815739 single nucleotide polymorphism of ACTN3 gene in general population of six Balkan countries. This SNP is currently thought to give genetic predisposition for advantageous sport performance, with its R allele positively correlating with better performance in strength/power sports, and X allele being present in higher frequency in elite athletes in endurance disciplines. A total of 483 individuals (281 males and 202 females) from seven populations from six countries was tested. Samples were collected by buccal swabbing method, DNA was isolated according to salting-out protocol and genotyping was performed using PCR and RFLP analysis. Obtained results suggest that RR and RX genotypes (43.7% and 44.1%, respectively) are overrepresented when compared to XX genotype (12.2%). The XX genotype in the study samples is present in lower frequency when compared to the global (16-18%) and European (18%) average. This study reports the first population data on genotype prevalence in sports-related genes for this part of Europe and is the beginning of research interests that intend to investigate genetic predispositions of elite athletes from this region competing internationally in different disciplines.