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In the context of comprehensive penetration and cross-border integration of information technology, digital transformation of enterprises has become an important way to accelerate enterprise innovation and lead economic innovation growth, injecting new vitality into enterprises. Based on the textual information of annual reports of A-share listed companies from 2011-2021, this paper constructs a measure of digital transformation and systematically examines the impact of digital transformation on corporate innovation output and its impact mechanism. It is found that there is a significant positive relationship between digital transformation and innovation output of enterprises, and the finding is robust. The mechanism test indicates that corporate digital transformation promotes corporate innovation by increasing innovation inputs and promoting corporate learning effects. Further study found that the promotion effect of corporate digital transformation on corporate innovation was more pronounced in large enterprises, high-tech enterprises, stateowned enterprises, enterprises whose executives have master’s degrees, and enterprises in relatively close geographical proximity to the eastern region. This study not only enriches the empirical research on the consequences of digital transformation and the mechanism of enterprises using new dynamic energy to enhance transformation, but also has important implications for promoting the layout adjustment of national digital innovation-driven strategies.

We delved into the intricate relationships of social support, ethnic identity, pride, and subjective well-being among Chinese athletes who belong to an ethnic minority. The study's focus was on 877 athletes from diverse economic regions in China, who participated in the 11th Zhengzhou National Minority Traditional Sports Games in 2019. The results showed that social support was positively correlated with ethnic identity, pride, and subjective well-being among Chinese athletes from ethnic minorities. Social support directly influenced the athletes' subjective well-being, as well as indirectly impacting it by affecting their ethnic identity and/or pride. By addressing critical research gaps, this study has contributed to a more nuanced understanding of well-being within the context of cultural diversity and sports participation. The insights derived from this study can inform interventions aimed at enhancing the overall experiences and achievements of athletes in ethnic minorities. [ABSTRACT FROM AUTHOR]

Two novel Fenestin A analogs (1 and 2) containing a phthalimide moiety are prepared by photoinduced cyclization. Their absolute configurations were determined by experimental ECD with the aid of theoretical calculations. The resulting compounds are active in HeLa (IC50 = 28.2 μM for 1 and 36.5 μM for 2) and HepG-2 cell lines (IC50 = 33.5 μM for 1 and 40.3 μM for 2). [ABSTRACT FROM AUTHOR]

Eight eudesmane-type sesquiterpenes - phaeusmanes A-H ( 1- 8) - isolated for the first time in this work, and four others ( 9- 12) isolated for the first time from plants in this work, together with fourteen known eudesmane derivatives, were isolated from the rhizomes of Curcuma phaeocaulis. Their structures were elucidated by 1D and 2D NMR and CD spectroscopy and HRMS. Compound 8 is the first example of a nitrogen-containing eudesmane-type sesquiterpene isolated from the genus Curcuma. Furthermore, inhibitory effects of the isolated compounds on NO production in lipopolysaccharide-activated macrophages were evaluated. Compounds 1, 6, 10, 19, 22, and 24 showed strong inhibitory activities on NO production with IC50 values of 3.2, 4.8, 1.2, 0.8, 3.8, and 0.8 μ M, respectively. Preliminary structure-activity relationships for these compounds are proposed. A possible biogenetic pathway for nitrogen-containing eudesmane-type sesquiterpene 8 is postulated. [ABSTRACT FROM AUTHOR]