This study explored the effect of perceived social isolation on the mental health of college students during the high-risk period of COVID-19 transmission in Hubei,China and the role of social support from online frie...This study explored the effect of perceived social isolation on the mental health of college students during the high-risk period of COVID-19 transmission in Hubei,China and the role of social support from online friends in alleviating this effect.The questionnaire responses of 213 college students from four universities in Hubei were included.Measurement and structural models were constructed using structural equation modeling.The findings revealed that perceived social isolation while under home quarantine was a negative predictor of the mental health of college students in Hubei.Low social support from online friends may lead to a relatively strong relationship between perceived social isolation and mental health in these college students,whereas high social support from online friends may lead to a relatively weak relationship between perceived social isolation and mental health.展开更多
本文设计了基于二维玻璃态石墨烯的多功能器件.与本征石墨烯相比,扭曲的晶格结构打开了玻璃态石墨烯的带隙,表现出与石墨烯类似甚至更优异的光电探测与化学传感性能.由于玻璃态石墨烯与空气中的小分子间较强的相互作用,该器件受到光致...本文设计了基于二维玻璃态石墨烯的多功能器件.与本征石墨烯相比,扭曲的晶格结构打开了玻璃态石墨烯的带隙,表现出与石墨烯类似甚至更优异的光电探测与化学传感性能.由于玻璃态石墨烯与空气中的小分子间较强的相互作用,该器件受到光致脱附的影响更小,呈现出正的光响应.在405 nm的激光照射下,器件的响应率为0.22 A W^(-1),探测率为10^(10)Jones.此外,玻璃态石墨烯中的固有缺陷和应变可增强分析物的吸附,获得良好的化学传感性能.玻璃态石墨烯器件探测丙酮的信噪比为48,比石墨烯器件提高了50%以上.此外,对偏压和厚度有关的挥发性有机化合物(VOC)感测功能的分析表明,少层玻璃态石墨烯更为敏感.这项研究表明玻璃态石墨烯在集成光电探测和化学传感多功能器件方面具有巨大应用前景.展开更多
Photopolymerization-based additive printing of functional inorganics has drawn great attention in recent years and one important challenge is the photoresin loading with diverse inorganics. Here, we introduce a Mailla...Photopolymerization-based additive printing of functional inorganics has drawn great attention in recent years and one important challenge is the photoresin loading with diverse inorganics. Here, we introduce a Maillard reaction-derived laser lithography strategy for an unprecedented direct printing of diverse inorganic compounds. The sugar-assisted laser lithography(SLL) is powerful to carry choice metal ions and versatile for the generation of patterned inorganic materials comprising metal oxides,metal sulfides, and metal nitrides, characterized by ferroelectric, magnetic, semiconductivity, superconductivity, or other properties. The material architecture is flexibly manipulated by the laser intensity, power, printing speed, precursor solution, and computer-aided design to satisfy the practical requirements. This work demonstrates a new possibility for the further development of laser lithography in the directly printing of feature-rich inorganic materials and devices.展开更多
文摘This study explored the effect of perceived social isolation on the mental health of college students during the high-risk period of COVID-19 transmission in Hubei,China and the role of social support from online friends in alleviating this effect.The questionnaire responses of 213 college students from four universities in Hubei were included.Measurement and structural models were constructed using structural equation modeling.The findings revealed that perceived social isolation while under home quarantine was a negative predictor of the mental health of college students in Hubei.Low social support from online friends may lead to a relatively strong relationship between perceived social isolation and mental health in these college students,whereas high social support from online friends may lead to a relatively weak relationship between perceived social isolation and mental health.
基金supported by the National Natural Science Foundation of China (51202106,21671170 and 21673203)New Century Excellent Talents of the University in China (NCET-130645)+6 种基金the Innovation Scientists and Technicians Troop Construction Projects of Henan Province(164200510018)the Plan for Scientific Innovation Talent of Henan Provincethe Program for Innovative Research Team (in Science and Technology) in the University of Henan Province(14IRTSTHN004 and 16IRTSTHN003)the Science & Technology Foundation of Henan Province (122102210253 and 13A150019)the Science & Technology Foundation of Jiangsu Province (BK20150438)the Six Talent Plan (2015-XCL-030)China Postdoctoral Science Foundation (2012M521115)
基金supported by the National Natural Science Foundation of China (61974014)the EPSRC Future Compound Semiconductor Manufacturing Hub (EP/P006973/1)。
文摘本文设计了基于二维玻璃态石墨烯的多功能器件.与本征石墨烯相比,扭曲的晶格结构打开了玻璃态石墨烯的带隙,表现出与石墨烯类似甚至更优异的光电探测与化学传感性能.由于玻璃态石墨烯与空气中的小分子间较强的相互作用,该器件受到光致脱附的影响更小,呈现出正的光响应.在405 nm的激光照射下,器件的响应率为0.22 A W^(-1),探测率为10^(10)Jones.此外,玻璃态石墨烯中的固有缺陷和应变可增强分析物的吸附,获得良好的化学传感性能.玻璃态石墨烯器件探测丙酮的信噪比为48,比石墨烯器件提高了50%以上.此外,对偏压和厚度有关的挥发性有机化合物(VOC)感测功能的分析表明,少层玻璃态石墨烯更为敏感.这项研究表明玻璃态石墨烯在集成光电探测和化学传感多功能器件方面具有巨大应用前景.
基金supported by the National Natural Science Foundation of China (21971172, 21671141, and 21601130)the Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions for Optical Engineering in Soochow University。
文摘Photopolymerization-based additive printing of functional inorganics has drawn great attention in recent years and one important challenge is the photoresin loading with diverse inorganics. Here, we introduce a Maillard reaction-derived laser lithography strategy for an unprecedented direct printing of diverse inorganic compounds. The sugar-assisted laser lithography(SLL) is powerful to carry choice metal ions and versatile for the generation of patterned inorganic materials comprising metal oxides,metal sulfides, and metal nitrides, characterized by ferroelectric, magnetic, semiconductivity, superconductivity, or other properties. The material architecture is flexibly manipulated by the laser intensity, power, printing speed, precursor solution, and computer-aided design to satisfy the practical requirements. This work demonstrates a new possibility for the further development of laser lithography in the directly printing of feature-rich inorganic materials and devices.
