It is not only difficult to be a sports expert but also difficult to grow from a sports expert to a sports elite. Professional athletes are often concerned about the differences between an expert and an elite and how to eventually become an elite athlete. To explore the differences in brain neural mechanism between experts and elites in the process of motor behavior and reveal the internal connection between motor performance and brain activity, we collected and analyzed the electroencephalography findings (...) of 14 national archers and 14 provincial archers during aiming and resting states and constructed the EEG brain network of the two archer groups based on weighted phase lag index; the graph theory was used to analyze and compare the network characteristics via local network and global network topologies. The results showed that compared with the expert archers, the elite archers had stronger functional coupling in beta1 and beta2 bands, and the difference was evident in the frontal and central regions; in terms of global characteristics of brain network topology, the average clustering coefficient and global efficiency of elite archers were significantly higher than that of expert archers, and the eigenvector centrality of expert archers was higher; for local characteristics, elite archers had higher local efficient; and the brain network characteristics of expert archers showed a strong correlation with archery performance. This suggests that compared with expert archers, elite archers showed stronger functional coupling, higher integration efficiency of global and local information, and more independent performance in the archery process. These findings reveal the differences in brain electrical network topologies between elite and expert archers in the archery preparation stage, which is expected to provide theoretical reference for further training and promotion of professional athletes. (shrink)

Scholars have made great efforts to investigate the antecedents of knowledge sharing. In the current study, we applied the proactive motivation model (Parker, Bindl, and Strauss, 2010) to propose a theoretical model to advance this research line and examined the relationship between coaching and knowledge sharing. A total of 197 supervisor–subordinate dyads from a logistics company completed the survey questionnaire. Our results show that leaders’ coaching behavior positively relates to employees’ knowledge sharing behavior via psychological availability. Furthermore, our results show (...) that team psychological safety climate moderates the relationship between psychological availability and employees’ knowledge sharing behavior, as well as the indirect effect between leaders’ coaching behavior and employees’ knowledge sharing. (shrink)

This study employs quantitative and qualitative methodologies mainly to examine how UNFCCC Executive Secretaries use concessive but-constructions and linguistic polyphony to implicitly argue points of view and convey stance in speeches on climate change. Our findings indicate that, in order to achieve its goals for global climate governance while adhering to humanitarian and diplomatic principles, UNFCCC speeches delivered to the Parties to the Convention and the Stakeholders emphasize the urgent need for concerted action on climate change while implicitly expressing discontent (...) and mild criticism of various Parties and Stakeholders for failing to do their fair share in support of such action. This style of discourse aims to promote group unity, solidarity, and transparency while minimizing the possibility of offending any Parties or Stakeholders. Nevertheless, given the urgency of addressing climate change challenges, we advise that UNFCCC speakers utilize more explicit linguistic methods that exert more direct pressure on specific Parties or Stakeholders who fail to assume their share of responsibility. In addition, we suggest that the UNFCCC focus on enabling the implementation of practical actions to limit the effects of global warming, while continuing to urge affluent countries to provide developing countries with much-needed financial and technological help. (shrink)