Browsing by Author "Wang S"
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- ItemChinese Students Abroad during the COVID Crisis: Challenges and Opportunities(21st Century Global Dynamics Initiative at the Orfalea Center of the University of California, Santa Barbara, 2020-09-25) Qi GY; Wang S; Dai CCOVID-19 is a human crisis that has hit international education particularly hard. International students have been directly affected by air travel cancellations and quarantine measures which have made border-crossing almost impossible. Like many, they are victims of this crisis—particularly those from China, who constitute the largest market within the global international education sector. Chinese international students have faced a double stigmatization since the outbreak of COVID-19. First, they have been discriminated against by the “Chinese virus” stigma while they were overseas in the early stage of the pandemic. Second, they have been targeted in multiple ways by the anti-China politics triggered by the coronavirus. Given the fluidity of the crisis and the impacts of COVID-19 on Chinese international students, it is worth discussing their plight. Policymakers need to think carefully about the new dynamics of international education in terms of the huge market share of Chinese international students as related to new destination options and changing international education policies that may further affect Chinese students now and during the post-pandemic recovery.
- ItemComparative study on the rheological properties of myofibrillar proteins from different kinds of meat(Elsevier Ltd, 2022-01) Wang H; Yang Z; Yang H; Xue J; Li Y; Wang S; Ge L; Shen Q; Zhang MIn this study, the gel properties of myofibrillar proteins (MPs) from four meat sources (fish, beef, sheep, and pork) were compared. Oscillatory rheology measurements including temperature sweep, frequency sweep, and strain sweep were conducted to characterise the small and large deformation rheological properties of the MPs. In addition, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and scanning electron microscopy (SEM) were used to evaluate differences in the molecular weight distribution as well as the microstructures in gel among different MPs. Frequency sweep measurements showed that all MP gels were weak gels. MPs extracted from pork exhibited the highest gel strength and most compact gel structure, whereas those from fish exhibited the lowest gel strength and loosest gel structure. In addition, the MP extracted from pork (PSM) had the highest content of myosin heavy chain (MHC) and actin. In conclusion, the MPs extracted from fish source and mammalian sources varied significantly in terms of rheological properties and microstructural characteristics. These results provided useful information for developing mixed gel products with different gel strengths.
- ItemSupplying silicon alters microbial community and reduces soil cadmium bioavailability to promote health wheat growth and yield(Elsevier, 2021-06-30) Song A; Li Z; Wang E; Xu D; Wang S; Bi J; Wang H; Jeyakumar P; Li Z; Fan FSoil amendments of black bone (BB), biochar (BC), silicon fertilizer (SI), and leaf fertilizer (LF) play vital roles in decreasing cadmium (Cd) availability, thereby supporting healthy plant growth and food security in agroecosystems. However, the effect of their additions on soil microbial community and the resulting soil Cd bioavailability, plant Cd uptake and health growth are still unknown. Therefore, in this study, BB, BC, SI, and LF were selected to evaluate Cd amelioration in wheat grown in Cd-contaminated soils. The results showed that relative to the control, all amendments significantly decreased both soil Cd bioavailability and its uptake in plant tissues, promoting healthy wheat growth and yield. This induced-decrease effect in seeds was the most obvious, wherein the effect was the highest in SI (52.54%), followed by LF (43.31%), and lowest in BC (35.24%) and BB (31.98%). Moreover, the induced decrease in soil Cd bioavailability was the highest in SI (29.56%), followed by BC (28.85%), lowest in LF (17.55%), and BB (15.30%). The significant effect in SI likely resulted from a significant increase in both the soil bioavailable Si and microbial community (Acidobacteria and Thaumarchaeota), which significantly decreased soil Cd bioavailability towards plant roots. In particular, a co-occurrence network analysis indicated that soil microbes played a substantial role in rice yield under Si amendment. Therefore, supplying Si alters the soil microbial community, positively and significantly interacting with soil bioavailable Si and decreasing Cd bioavailability in soils, thereby sustaining healthy crop development and food quality.