Search

China's huge regional differences are taken into consideration to study the influencing factors and their differences in CO 2 emissions of the power industry from different regions. This study aimed to improve the efficiency of CO 2 emission reduction policies. From the production and consumption perspectives, this study analyzes the influencing factors of CO 2 emissions and utilizes the Logarithmic Mean Divisia Index (LMDI) to decompose CO 2 emissions with consideration of the cross-regional power dispatching in the power industry. The results indicate that the trend of CO 2 emissions in the eastern, central, and western China seems similar during years 2005 to 2017 no matter from which perspective. From the production perspective, power consumption is the main factor in CO 2 emission increase and its affect extent may vary from different regions over a period of time. Energy efficiency inhibits CO 2 emission increase in all regions. The power structure and power distribution across regions affect CO 2 emissions significantly different in amount and direction from region to region. From the consumption perspective, economic activity plays a major role in CO 2 emission increase and plays a similar role in the trend of CO 2 emissions in three regions, but its affect extent on CO 2 emissions varies in different regions. Targeted policy recommendations are provided to reduce CO 2 emissions more effectively from China's power industry., Competing Interests: The authors declare that they have no known conflicts of interests or personal relationships that could have appeared to influence the work reported in this study., (Copyright © 2022 Qiang Liu et al.)

Human papillomavirus (HPV) is the most common sexually transmitted infection in the United States (US). It is often discussed within the context of women's sexual health due to its association with cervical cancer. However, HPV is also associated with other cancers and conditions which affect men. Gay and bisexual males (GBM) in the US have higher risks of HPV infection and a higher incidence of HPV-associated anal cancer than heterosexual males. In addition, GBM in the US have a higher prevalence of some high-risk strains of HPV than in other regions. HPV vaccination is highly effective at preventing HPV-associated cancers and genital warts. Several resources have been directed towards improving HPV awareness in the US over the past couple of years to improve vaccination rates. Given the low rates of HPV vaccination among GBM in the US, this study aimed to assess the trends in HPV and HPV vaccine awareness using a nationally representative sample of GBM. We found an overall increase in HPV and HPV vaccine awareness between 2017 and 2020. However, the sociodemographic differences in awareness levels highlight the need for more interventions to improve vaccination rates, especially in this high-risk population.

Psychological distress is more common in cancer survivors than the general population, and is associated with adverse outcomes. This cross-sectional study aimed to assess the relationship between socioeconomic status (SES), race and psychological distress, using data from a nationally representative sample of cancer survivors in the United States. Outcomes of interest were mild, moderate, and severe psychological distress as assessed by the Patient Health Questionnaire-4 (PHQ-4). In our univariate model, there was no statistically significant difference in the PHQ-4 scores of Caucasian and African American respondents. On the other hand, a lower SES correlated with a higher likelihood of psychological distress, and this persisted in our multivariate model. This study brings additional awareness to the negative impact of a lower socioeconomic status on mental health outcomes in cancer survivors, and further highlights the importance of the timely identification and screening of individuals at a high risk of psychological distress, in order to limit missed opportunities for relevant mental health interventions in this population.

Competing Interests: Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

A chiral silver-sulfur nanocluster with a μ 8 -S inside, Ag 18 (μ 8 -S)(p-TBBT) 16 (PPh 3 ) 8 , was successfully synthesized and characterized. This nanocluster is composed of a crown-like Ag 8 S core and an Ag 10 S 16 P 8 meso-shell. The presence of the core induces symmetry breaking of the nanocluster from S 8 to C 4 , and therefore endows the cluster with chirality.

We report a Pd-mediated synthesis and crystal structure of a new chiral Ag 33 (SCH 2 CH 2 Ph) 24 (PPh 3 ) 4 nanocluster with an open shell electronic structure. The single-crystal X-ray structure reveals that the kernel of the cluster comprises a keplerate Ag 13 icosahedron core with one Ag atom in the center and a shell framework of Ag 20 S 24 P 4 block. The Ag 20 S 24 P 4 shell framework is fully arranged by helical -S-Ag-S- staples along four Ag-P bonds involved C3 axis, which endows the kernel structure of the nanocluster chirality and symmetry in the T point group. The geometry and chirality of the Ag 33 nanocluster are further confirmed by nuclear magnetic resonance (NMR), electronic circular dichroism (ECD) spectra, and time-dependent density functional theory calculations. Our results show that the formation of the new chiral Ag 33 nanocluster is strongly dependent on the presence of Pd regent with the form of Pd(PPh 3 ) 4 functioning in the synthesis. This work not only presents a novel chiral structure of the silver nanocluster but also provides a new strategy for the development of a novel nanocluster.

The development and utilization of biomass resources could contribute to new materials for long-term sustainable energy storage and environmental applications, reduce environmental impacts, and meet the urgent need for green and sustainable development strategies. Herein, a bimetallic metal-phenolic network (MPN) was applied to incorporate different metallic element species into cattle skin and fabricate collagen-fiber-derived complex oxide nanofibers using natural polyphenols (Myrica tannins). Direct thermal transition of these biomass-MPN composites generates hierarchically porous nanofibers possessing micro- and mesoporous architectures along with a well-preserved macroscopic structure. The pore system and complex oxide composition provide excellent photocatalytic performance. This low-cost, simple, and readily scalable MPN-based approach provides a straightforward route to synthesize nanostructured materials directly from biomass, which could play important roles in a wide range of potential applications., (© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)