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Background Mental illness had been a worldwide concern. Global Mental Health (GMH) had become a movement to fight for Global health inequality. In low-income country, mental health infrastructure and services are not provided equitably to people with mental disorders. Methods We used the data of global burden of 204countries from 1990 to 2019 in Global Burden of Disease database. The Years Lived with Disability (YLDs) due to mental disorders was treated as an indicator of national mental health. By using the GBD Results Tool toolkit provided by the Institute of Health Measurement and Evaluation, we retrieved and visualized the data in global burden of disease data. In addition, we used correlation analysis to analyze the correlation between the burden of mental illness and the level of national development. Results It is found that, mental health had been a global issue which showing a gradual upward trend. There is a significant positive and moderate correlation between national development and the burden of mental disorder. The better the national development, the higher the YLDs Rate caused by mental disorders. The burden of mental illness in low-income countries is not high, but the rate of increase is relatively fast, while the burden of mental illness in low- and middle-income countries is relatively high, but the rate of decrease is apparent. Conclusions Although there is a positive correlation between the national development level and the national burden of mental illness, the study found that the burden of mental disorders (as measured by YLD’s) in developed countries was high and declining, compared to developing countries where the burden was lower but growing. It is high time to notice that mental health had been a global issue. Global mental health movement should be done to narrow the gap between different countries, especially in developing countries.

Electrocatalytic energy conversion is one of the most promising pathways to develop clean and renewable energy technologies, and the development of high-performance electrocatalysts to improve the energy conversion efficiency is of paramount importance. Metal nanocrystals with twin defects possess unique features, including lattice strain and high density of low-coordinated atoms at the twin boundary, endowing them with excellent catalytic performance in various electrocatalytic reactions. Herein, we briefly summarize recent advances in the synthesis of metal nanocrystals with various twin structures, recent breakthroughs related to electrocatalytic applications of twin metal nanocrystals are also overviewed. Finally, the major challenges and perspectives for future development of twin metal nanocrystals in electrochemical applications are proposed.

Background: Mental illness had been a worldwide concern. Global Mental Health (GMH) had become a movement to fight for Global health inequality. In low-income country, adequate and quality mental health infrastructure, mental health services are not provided equitably to people with mental disorders.Methods: We used the data of global burden of 204countries from 1990 to 2019 in Global Burden of Disease database. The Years Lived with Disability (YLDs) due to mental disorders was treated as an indicator of national mental health. In the GBD Results Tool toolkit provided by the Institute of Health Measurement and Evaluation, retrieved and visualized the data in global burden of disease data. In addition, we used correlation analysis to analyze the correlation between the burden of mental illness and the level of national development.Results: It is found that, mental health had been a global issue which showing a gradual upward trend. There is a significant positive and moderate correlation between national development and the burden of mental disorder. The better the national development, the higher the YLDs Rate caused by mental disorders. The burden of mental illness in low-income countries is not high, but the rate of increase is relatively fast, while the burden of mental illness in low- and middle-income countries is relatively high, but the rate of decrease is apparent.Conclusion: The burden of mental disorders in developed countries is relatively high, but it has shown a downward trend. However, although the burden of mental disorders in developing countries is not large, the growth rate is relatively fast. This may be related to mental health policy. It is high time to notice that mental health had been a global issue. Global mental health movement should be done to narrow the gap between different countries, especially in developing countries.

The classical size effect of Pt particles on oxygen reduction reaction (ORR) suggests that the activity and durability would decrease with reducing the particle size, self-limiting the effectiveness in maximizing the Pt utilization efficiency with the particle-size-reduction strategy. Herein, we discover an anomalous size effect based on Pt nanowires (NWs) with tunable diameters, where the monotonically increasing activity and durability for ORR were observed with decreasing the diameter from 2.4 to 1.1 nm. Our results reveal that the dominant role of increased compressive strain induced by decreasing the diameter of NWs in weakening the adsorption and suppressing the Pt dissolution accounts for this anomalous size effect, where the reduced low-coordinated sites on NWs, the intrinsic structural advantage, is the root. Our findings not only expand the knowledge to the classical size effect but also provide new implications to break through the size limit in the design of Pt-based ORR catalysts.

NiFe layered double hydroxides (LDHs) have received widespread attention due to their unique structures and inherent electrocatalytic activity towards the oxygen evolution reaction (OER). Extensive studies have been reported to further improve the electrocatalytic activity of NiFe-LDHs via various strategies. However, controlling the degree of amorphization and stabilizing the amorphous zone during the electrocatalytic process are still challenging. Here, we report a facile method to synthesize a space-confined amorphous NiFe-LDH (SCA-NiFe-LDH) by selectively etching the surfaces of electrocatalysts. Due to the successful anchoring of amorphous zones onto the basal planes of the two-dimensional NiFe-LDH, the optimized SCA-NiFe-LDH exhibits high electrocatalytic activity with a low overpotential of 190 mV at 10 mA cm-2, a Tafel slope of 31 mV dec-1 and excellent long-term stability. The substantially enhanced OER performance is attributed to the increased amount of active sites and the modified electronic structure of NiFe-LDH after amorphization.

The Covid-19 pandemic has given rise to stigma, discrimination, and even hate crimes against various populations in the Chinese language–speaking world. Using interview data with victims, online observation, and the data mining of media reports, this paper investigated the changing targets of stigma from the outbreak of Covid-19 to early April 2020 when China had largely contained the first wave of Covid-19 within its border. We found that at the early stage of the pandemic, stigma was inflicted by some non-Hubei Chinese population onto Wuhan and Hubei residents, by some Hong Kong and Taiwan residents onto mainland Chinese, and by some Westerners towards overseas Chinese. With the number of cases outside China surpassing that in China, stigmatization was imposed by some Chinese onto Africans in China. We further explore how various factors, such as the fear of infection, food and mask culture, political ideology, and racism, affected the stigmatization of different victim groups. This study not only improved our understanding of how stigmatization happened in the Chinese-speaking world amid Covid-19 but also contributes to the literature of how sociopolitical factors may affect the production of hate crimes.

With a high Li+/Na+ conductivity, NASICON-type oxide ceramic electrolyte has been regarded as one of the most promising electrolytes to replace liquid electrolytes and thus enable safer electrochem...

Optimizing the activity of layered molybdenum disulfide (MoS2) toward hydrogen evolution reaction (HER) process is generally achieved by improving the electrical transport, intrinsic activity, and/or the number of active sites. However, simultaneously coupling these factors to achieve remarkable MoS2-based electrocatalysts has been seldom reported. Herein, we report a facile approach to the defect-rich one-dimensional MoS2 hierarchical architecture (1D-DRHA MoS2), which synergistically integrate the advantageous structural features of rich defects and one-dimensional hierarchal morphology. Toward HER process, the 1D-DRHA MoS2 electrocatalyst exhibited an overpotential of 119 mV at 10 mA cm−2, a Tafel slope of 50.7 mV dec-1, accompanied by an excellent stability. Notably, the activity is competitive to the state-of-the-art MoS2-based electrocatalysts for HER. The combination of experimental evidences and density functional theory calculations demonstrated the incorporation of rich defects and one-dimensional hierarchical structure improved electric conductivity, intrinsic activity, and active sites, which together accounted for the boosted HER performance.