Suchergebnisse

Abstract
This study explores how and why people are impolite in danmu. Danmu refers to anonymous
comments overlaid on videos uploaded to video-sharing sites. Although there is wide recognition that impoliteness prevails in
danmu, the questions of how and why people are impolite in this context have rarely been investigated. This study
addresses this lacuna of research. Using both an analysis of comments identified as impolite by participants and an analysis of focus group
interview data, this research identified seven impoliteness strategies, covering both conventionalised formulae and implicational
impoliteness. By applying uses and gratifications theory, this study identified five uses and gratifications for performing impoliteness in
danmu: social interaction, entertainment, relaxation, expression of (usually differing) opinions and finding connections.
The dialectic of resonance and opposition that emerged from the data helped explain why impolite comments tended not to be perceived as
inappropriate in danmu. Thus, this study contributes to the emerging research on impoliteness in social media.

AbstractRural collective‐owned cooperatives (RCOCs) have received significant attention for rural development, alleviating rural poverty, and achieving common welfare in China. Using the Social‐ecological system (SES) framework as a conceptual and analytical lens, this paper clarifies the determinants and the influence mechanism for the economic performance of RCOCs. A mixed method, PLS‐SEM combined NCA approach is applied to 420 smallholder farmers in rural China. The results reveal that rural collective property‐rights system reform (RCPRSR), leadership, social capital, and collective action positively affect the economic performance of RCOCs. Moreover, leadership and social capital also operate through their mediating effect on collective action amongst collective members. Our results further show that RCPRSR, leadership, and social capital are necessary conditions for the high economic performance of RCOCs.

The Chinese state sees language as an essential determinant in ethnic minority schooling. The use of minority language as a medium of instruction is viewed as a way to increase attendance rates and strengthen socialization into a national ideology. However, the policies differ for those ethnic miorities with or without a commonly used written script. Among the minorities without a script are the 300,000 strong Dongxiang, an ethnic group with the lowest level of literacy and school access in China. There is virtually no systematic research on the role of language in school access for Chinese minority groups without a written script. In particular, there is a lack of analysis of the Dongxiang (and similar groups without a written script) learning and school discontinuation. This research aimed to identity the major difficulties in school based learning for the Dongxiang speaking children. Specifically, it explores local perspectives on how language and other factors are related to school enrolment and achievement. In order to accomplish this, the research combined a variety of data gathering methods, including survey questionnaires, open ended interviews, in-depth interviews, field visits, observations, and case studies to analyze the difficulties of language transition faced by Dongxiang ethnic minority children. The results reveal that although native language does not directly cause schoolchildren to discontinue their studies, it has an important indirect influence, especially on the girls. The research results also show that Dongxiang ethnic minority schoolchildren in the early years of schooling generally cannot understand their teachers' Chinese teaching, which results in poor school performances, a decline of interest in learning, a frustrated sense of achievement, and a decline in self-respect. Many students drop out as part of a vicious cycle that sees a reproduction of poor conditions for learning.

Abstract
Background
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) represent a category of pervasive and enduring environmental pollutants that present a risk to human health. Although growing evidence suggests that probiotics can potentially alleviate the adverse effects of PFAS, large cross-sectional studies on the relationship between probiotic consumption and PFAS remain lacking.

Objective
The objective of this study is to assess the association between the exposure of probiotics and serum levels of PFAS.

Methods
This analysis included individuals aged 20 and above who took part in the National Health and Nutrition Examination Survey (NHANES) between 2003 and 2018. Probiotic consumption was considered when a participant reported consuming yogurt during the two 24-h dietary recall or using a probiotic supplement in dietary supplement questionnaires over the past 30 days.

Results
This study involved 9469 adults, out of which 1333 had been exposed to probiotics. We found negative associations between probiotic consumption and serum concentrations of perfluorooctanoic acid (PFOA) (β: − 0.19, 95% CI − 0.35 to − 0.02; P = 0.027), and perfluorooctane sulfonic acid (PFOS) (β: − 0.1.27, 95% CI − 2.23 to − 0.32; P = 0.010). The consumption of probiotic supplements alone was associated with reduced perfluorononanoic acid (PFNA) (β: − 0.19, 95% CI − 0.28 to − 0.10; P < 0.001). No statistically significant association was identified between probiotic consumption and perfluorohexane sulphonic acid (PFHxS).

Conclusion
In this cross-sectional, nationally representative study, probiotic ingestion was negatively associated with several serum PFAS compounds. These findings carry substantial implications for designing interventions that target the reduction of accumulated PFAS levels in the body and mitigating the resulting adverse health effects.