Suchergebnisse

This study explored brain activation patterns in the executive function of children and adolescents following an exercise intervention. After computer retrieval of relevant studies, we independently screened the studies, extracted data, and assessed the quality. We used Ginger ALE 2.3
software to conduct activation likelihood estimation, then we discussed and calculated the activation cluster and activation probability of the brain regions of children and adolescents who completed an exercise intervention. After the exercise intervention, children and adolescents achieved
five peak activation enhancement points (total volume = 2,070 mm3) and six peak activation reduction points (total volume = 1,352 mm3) in the process of completing executive function tasks. The results indicate that the improvement in executive function
caused by an exercise intervention is the result of synergetic changes in multiple brain regions with increased and decreased activation.

The recent influx of immigrants to the United States and the corresponding growth in racial/ethnic diversity has increased the visibility of nonprofits that serve primarily people of color (POC). Combining data from an original survey with Form 990 tax returns and Census records, this study focuses on nonprofits designed to serve particular racial and ethnic groups. We explore whether organizations that serve mainly POC or those led by POC face greater financial challenges than others. We find that POC-serving or POC-led nonprofits experience greater financial difficulties stemming from additional challenges in resource development and management. However, POC-serving nonprofits led by executives of color did not show additional disadvantages compared with those serving mainly POC but led by White executives or POC-led nonprofits serving mainly White individuals. We discuss the implications of racialized organizations and how understanding this issue can help address the financial vulnerability of POC-serving nonprofits.

PurposeE-commerce poverty alleviation (EPA) is an innovative poverty alleviation model in China. The institutional mechanisms of the e-commerce platform improve the effect of EPA and exert online shopping purchase power in rural China. From a socio-technical perspective, this paper used adoption readiness of farmers and perceived risk to construct an integrated model to discern the effect of enhanced e-commerce institutional mechanisms on farmers' online shopping intention in the context of EPA.Design/methodology/approachThe survey included 832 valid samples from rural farmers in Shanxi province. This study analyses using structural equation modelling (SEM) and bootstrap methods used to empirically test the model.FindingsFindings suggest that enhanced e-commerce institutional mechanisms have significant direct and indirect positive impacts on farmers' online shopping intention; adoption readiness and perceived risk play partial mediation roles in determining the relationship between farmers' online shopping intention and enhanced e-commerce institutional mechanisms; and the indirect mediation effect of adoption readiness is greater than that of perceived risk.Research limitations/implicationsAlthough the proposed model was supported in the questionnaire survey, the investigation method was not completely excluded. Future research can combine the method of panel data and apply the framework to other e-commerce platforms, as well as to other cultural settings.Practical implicationsThe study suggests that enhanced e-commerce institutional mechanisms that are based on the needs of farmers from poverty-stricken areas change the shopping habits of farmers. Moreover, enhanced e-commerce institutional mechanisms should allow farmers' perceived adoption readiness to play its promoting role and reduce the impeding role of perceived risk. The results of this study are conducive to the intensive implementation of the 'Three Rural Issues' strategy in China.Originality/valueA new model to generate a two-factor mediation effect model by integrating the perceived effectiveness of enhanced e-commerce institutional mechanisms with farmers, farmers' adoption readiness, perceived risk and online shopping intention. The study explored the relationship between enhanced e-commerce institutional mechanisms and farmers' online shopping intention, bridging the gap in related empirical studies. Besides, this study first proposed farmers' adoption readiness and clarifies the mediating role of farmers' adoption readiness and perceived risk, which highlights the previously unnoticed role of farmers' adoption readiness.