Study on approaching the compositional criterion in group rhythmic gymnastics for junior representative teams

The increased level of sports performance in rhythmic gymnastics due to fiercer and better and better organised competitions is obvious for any critic. National and international sports bodies and public opinion stimulated by media coverage eager for sensational have created an obsession with the prioritisation of values. Obtaining exceptional results, medals, points and titles, with all the deriving moral effects of pride but especially related to material aspects, is of interest to both athletes and the countries represented by sports delegations in official international competitions. Competition analysis provides highly valuable information on the level reached in terms of qualitative and quantitative gains and the impact of regulations on a team’s performance at a certain time in relation to the ideal model imposed by the requirements of the FIG Code of Points. Romania’s position in the team ranking for the group event in two major competitions generated a number of questions that formed the core of the current study. In this context, we aimed to perform an objective analysis of the way in which coaches approached the compositional criterion in designing the competition routines and identify possibly strategic elements that made the difference in team ranking. The study was conducted on the first 8 junior teams ranked at the 2019 European Rhythmic Gymnastics Championships (Baku) and the 2019 Rhythmic Gymnastics Junior World Championships (Moscow). Video analysis allowed us to identify the vectors that directly or indirectly influenced the mechanisms involved in the creation of compositions for the group event.

Individual Tree Segmentation Method Based on Mobile Backpack LiDAR Point Clouds

Individual tree (IT) segmentation is crucial for forest management, supporting forest inventory, biomass monitoring or tree competition analysis. Light detection and ranging (LiDAR) is a prominent technology in this context, outperforming competing technologies. Aerial laser scanning (ALS) is frequently used for forest documentation, showing good point densities at the tree-top surface. Even though under-canopy data collection is possible with multi-echo ALS, the number of points for regions near the ground in leafy forests drops drastically, and, as a result, terrestrial laser scanners (TLS) may be required to obtain reliable information about tree trunks or under-growth features. In this work, an IT extraction method for terrestrial backpack LiDAR data is presented. The method is based on DBSCAN clustering and cylinder voxelization of the volume, showing a high detection rate (∼90%) for tree locations obtained from point clouds, and low commission and submission errors (accuracy over 93%). The method includes a sensibility assessment to calculate the optimal input parameters and adapt the workflow to real-world data. This approach shows that forest management can benefit from IT segmentation, using a handheld TLS to improve data collection productivity.

Competition law and digital ecosystems: Learning to walk before we run

The paper analyzes the challenges faced by competition authorities with respect to the digital sector. Borrowing insights from the business policy literature and from the economic literature, the paper first analyzes the specificities of digital firms (multi-sided platforms and ecosystems) with respect to their development and competitive strategies. Building on this foundation the paper explores some of the challenges of applying traditional competition analysis to competition in the business sector. We then discuss a number of issues relevant to competition law enforcement in the digital sector starting with the role of data, competition within ecosystems and between ecosystems, consumer biases, and the role of gatekeepers. We conclude with a research agenda for economists and competition authorities.

Competition Analysis on Industry Populations Based on a Three-Dimensional Lotka–Volterra Model

The classical Lotka–Volterra model is mainly a two-dimensional configuration. The two-dimensional form limits the application scenarios of the Lotka–Volterra model. The research objective of this paper is to develop a feasible three population equilibrium model to analyze the industry competition. In order to expand the Lotka–Volterra model to empirical analysis, this paper proposes a symbiosis model of enterprise population based on a three-dimensional Lotka–Volterra model. This paper analyzes the symbiotic system from two aspects: the balanced development of three species and the competitive evolution of the three species, taking the sales volume of three local automobile enterprises in China as the sample for empirical analysis. The symbiotic optimization under the equilibrium state of three populations indicates that there is the possibility of equilibrium and reciprocity in the growth of three automobile product populations. The empirical analysis fully explains the feasibility of this research paradigm. The analysis of competition evolution shows that cooperative action is better than competitive strategy and that comprehensive cooperation is the ideal state of a three-population symbiotic system.

Self- and Relative Effects of Competitive State Anxiety on Perceived Performance in Middle and High School Taekwondo Athletes: An Actor and Partner Interdependence Model Analysis

Background: The present study aimed to provide an empirical theoretical basis for the psychological phenomena that occur among competing athletes. To this end, we utilized the actor and partner interdependence model (APIM) to analyze the self- and relative effects of competitive state anxiety on perceived performance in middle and high school Taekwondo athletes. Methods: Data were analyzed for 372 middle and high school athletes (red group=186, blue group=186) who participated in the first round of the 2020 Korea Taekwondo Association National Taekwondo Competition. Analysis based on the APIM was applied to the collected data, and a path analysis was conducted to verify the self- and relative effects of competitive state anxiety on perceived performance. Results: Cognitive (red: P<0.01, blue: P<0.001) and physical state anxiety (red: P<0.01, blue: P<0.01) exerted a significant negative self-effect on perceived performance in both groups. In contrast, state confidence (red: P<0.001, blue: P<0.001) exerted a significant positive self-effect on perceived performance. Furthermore, cognitive (red: P<0.001, blue: P<0.01) and physical state anxiety (red: P<0.001, blue: P<0.001) exerted a significant positive relative effect on the opponent’s perceived performance in both groups, while state confidence (red: P<0.01, blue: P<0.001) exerted a significant negative relative effect on the opponent’s perceived performance. Conclusion: Sports psychologists should focus on developing a psychological training program that provides practical psychological support as well as self-regulatory and relative strategies for improving athletic performance in competitive scenarios.

Study of competition in the regional banking sector of Russia

The competitive environment in the banking sector encourages the production of new banking products, which brings additional benefits to consumers of banking services, but in Russia, in the regional aspect, there is a significant problem that requires detailed consideration, consisting in the concentration of the bulk of bank assets in the hands of a narrow circle of credit organizations. In this regard, we believe that the chosen topic of the study is relevant and timely. The purpose of the study is to quantify and qualitatively interpret the level of competition of credit institutions in the regions of Russia. To achieve the goal, the following were used: a method of comparison, analysis and synthesis, mathematical and statistical methods. The main results include the following: a trend towards a decrease in the number of credit institutions has been identified since 1996, which is caused by the policy of the Central Bank of the Russian Federation to improve the banking sector, as well as high competition; analysis of the dynamics of key indicators of the banking system showed that despite economic sanctions from Western countries, stagnation of the domestic economy after the crisis of 2014, changes in business processes and the way of life of people in connection with the pandemic of the Covid-19 virus, credit organizations in Russia make a profit from year to year. This pattern indicates their high adaptability to changes in the external environment; spatial analysis of indicators characterizing the activities of credit institutions revealed a significant concentration of capital in two entities, this is Moscow and St. Petersburg, thus it is possible to confidently assert the monopolization of the capital market in Russia. The results will be useful to researchers in the field of competition, the capital market and the banking sector, as well as employees of credit organizations in the formation of a strategy for the development of banks.

EXISTING PROBLEMS IN COLLEGE SPORTS COMPETITION ANALYSIS AND SOLUTION PATH RESEARCH

College sports activities can enrich the amateur life of college students and enhance their life. This study combined with the author's practical experience in competition management many times, using the literature method and interview method, to explore the existing problems in regional college sports competitions, found that the current regional college sports competitions in the pre-match publicity, registration, arrangement, safety in the game and post-match results registration and maintenance problems need to be solved, and combined with the problem put forward related solutions: the establishment of a complete event website, the construction of a sound event publicity channel, the structure of low error rate of the registration system website, The upgraded order book produces templates, improves the training quality of the event staff, develops the results registration website that conforms to the characteristics of the event and does a good job in the summary of the event, hoping to help the regional college sports competition activities improve the quality, better realize the original intention of holding the competition activities, reflect the function of the university events.