|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Psychological impact of the COVID-19 pandemic on healthcare workers:a cross-sectional study in China显示文摘Background Healthcare workers fighting against the coronavirus disease 2019(COVID-19)pandemic are under tremendous pressure,which puts them at an increased risk of developing psychological problems.Aims This study aimed to investigate the prevalence of psychological problems in different healthcare workers(ie,physicians,medical residents,nurses,technicians and public health professionals)during the COVID-19 pandemic in China and explore factors that are associated with the onset of psychological problems in this population during this public health crisis.Methods A cross-sectional,web-based survey was conducted in February 2020 among healthcare workers during the COVID-19 pandemic.Psychological problems were assessed using the Generalized Anxiety Disorder Scale,Patient Health Questionnaire and Insomnia Severity Index.Logistic regression analyses were used to explore the factors that were associated with psychological problems.Results The prevalence of symptoms of anxiety,depression,insomnia and the overall psychological problems in healthcare workers during the COVID-19 pandemic in China was 46.04%,44.37%,28.75%and 56.59%,respectively.The prevalence of the overall psychological problems in physicians,medical residents,nurses,technicians and public health professionals was 60.35%,50.82%,62.02%,57.54%and 62.40%,respectively.Compared with healthcare workers who did not participate in front-line work,front-line healthcare workers had a higher risk of anxiety,insomnia and overall psychological problems.In addition,attention to negative or neutral information about the pandemic,receiving negative feedback from families and friends who joined front-line work,and unwillingness to join front-line work if given a free choice were three major factors for these psychological problems.Conclusions Psychological problems are pervasive among healthcare workers during the COVID-19 pandemic.Receiving negative information and participating in front-line work appear to be.important risk factors for psychological problems.The psychological health of different healthcare workers should be protected during the COVID-19 pandemic with timely interventions and proper information feedback. | Jianyu Que Le Shi Jiahui Deng Jiajia Liu Li Zhang Suying Wu Yimiao Gong Weizhen Huang Kai Yuan Wei Yan Yankun Sun Maosheng Ran Yanping Bao Lin Lu | 2020 | General Psychiatry2020，33，3： | 8 |
| 2 | Wet-chemistry synthesis of cobalt carbide nanoparticles as highly active and stable electrocatalyst for hydrogen evolution reaction显示文摘转变金属碳化物(TMC ) nanomaterials 正在答应选择到磅,并且广泛地为电气化学的氢进化反应被用作异构的 electrocatalysts (她的) 。在这个工作,综合的导致溴化物的湿化学的策略公司 2 C nanoparticles (NP ) 被开发。如此的 NP 展出了高 electrocatalytic 活动(= 为 j = 的 181 mV 10 | Siwei Li Ce Yang Zhen Yin Hanjun Yang Yifu Chen Lili Lin Mengzhu Li Weizhen Li Gang HU Ding Ma | 2017 | Nano Research2017，10，4： | 7 |
| 3 | Fe5C2 nanoparticles as low-cost HER electrocatalyst:the importance of Co substitution显示文摘Constructing and understanding the doping effect of secondary metal in transition metal carbide(TMC)catalysts is pivotal for the design of low-cost hydrogen evolution reaction(HER) electrocatalysts. In this work, we developed a wet-chemistry strategy for synthesizing Co-modified Fe_5C_2 nanoparticles((Fe_(1-x)Cox)_5C_2 NPs) as highly active HER electrocatalysts in basic solution. The structure of(Fe_(1-x)Cox)_5C_2 NPs was characterized by X-ray diffraction(XRD), extended X-ray absorption fine structure spectra(EXAFS) and scanning/transmission electron microscopy(S/TEM), indicating that the isomorphous substitution of cobalt in the lattice of Fe_5C_2.(Fe_(0.75) Co_(0.25))_5C_2 exhibited the best HER activity(174 mV for j = -10 mA/cm^2). Computational calculation results indicate that Co provides the most active site for HER. X-ray adsorption spectra(XAS) studies further suggested that the electron transfer in Fe–C bonds are enhanced by the substitution of Co, which modulates the hydrogen adsorption on the adjacent electronic-enriched carbon, and therefore promotes HER activity. Our results affirm the design of lowcost bimetallic TMCs based HER catalysts. | Siwei Li Pengju Ren Ce Yang Xi Liu Zhen Yin Weizhen Li Hanjun Yang Jian Li Xiaoping Wang Yi Wang Ruochen Cao Lili Lin Siyu Yao Xiaodong Wen Ding Ma | 2018 | Science Bulletin2018，63，20： | 6 |
| 4 | Simultaneous removal of Cu(Ⅱ) and Cr(Ⅵ) by Mg–Al–Cl layered double hydroxide and mechanism insight显示文摘Mg–Al–Cl layered double hydroxide(Cl-LDH) was prepared to simultaneously remove Cu(Ⅱ)and Cr(VI) from aqueous solution. The coexisting Cu(Ⅱ)(20 mg/L) and Cr(VI)(40 mg/L) were completely removed within 30 min by Cl-LDH in a dosage of 2.0 g/L; the removal rate of Cu(Ⅱ) was accelerated in the presence of Cr(VI). Moreover, compared with the adsorption of single Cu(Ⅱ) or Cr(VI), the adsorption capacities of Cl-LDH for Cu(Ⅱ) and Cr(VI) can be improved by 81.05% and 49.56%, respectively, in the case of coexisting Cu(Ⅱ)(200 mg/L) and Cr(VI)(400 mg/L). The affecting factors(such as solution initial p H, adsorbent dosage, and contact time) have been systematically investigated. Besides, the changes of p H values and the concentrations of Mg^(2+) and Al^(2+)in relevant solutions were monitored. To get the underlying mechanism, the Cl-LDH samples before and after adsorption were thoroughly characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. On the basis of these analyses, a possible mechanism was proposed. The coadsorption process involves anion exchange of Cr(VI) with Cl-in Cl-LDH interlayer, isomorphic substitution of Mg^(2+) with Cu^(2+), formation of Cu_2Cl(OH)_3precipitation, and the adsorption of Cr(VI) by Cu_2Cl(OH)_3. This work provides a new insight into simultaneous removal of heavy metal cations and anions from wastewater by Cl-LDH. | Xianyang Yue Weizhen Liu Zuliang Chen Zhang Lin | 2017 | Journal of Environmental Sciences2017，29，3： | 6 |
| 5 | Stress Granule Formation is One of the Early Antiviral Mechanisms for Host Cells Against Coxsackievirus B Infection显示文摘Stress granules(SGs) are intracellular granules formed when cellular translation is blocked and have been reported to be involved in a variety of viral infections. Our previous studies revealed that SGs are involved in the coxsackievirus B(CVB)infection process, but the role of SGs in CVB infection has not been fully explored. In this study, we found that CVB type 3(CVB3) could induce SG formation in the early phase of infection. Results showed that levels of CVB3 RNA and protein were significantly inhibited during the early stage of CVB3 infection by the elevated formation of SGs, while viral RNA and protein synthesis were significantly promoted when SG formation was blocked. Our findings suggest that SG formation is one of the early antiviral mechanisms for host cells against CVB infection. | Xia Zhai Shuo Wu Lexun Lin Tianying Wang Xiaoyan Zhong Yang Chen Weizhen Xu Lei Tong Yan Wang Wenran Zhao Zhaohua Zhong | 2018 | Virologica Sinica2018，33，4： | 2 |
| 6 | Expression Profile and Function Analysis of Long Non-coding RNAs in the Infection of Coxsackievirus B3显示文摘The roles of IncRNAs in the infection of enteroviruses have been barely demonstrated.In this study,we used coxsackievirus B3(CVB3),a typical enterovirus,as a model to investigate the expression profiles and functional roles of IncRNAs in enterovirus infection.We profiled IncRNAs and mRNA expression in CVB3-infected HeLa cells by IncRNA-mRNA integrated microarrays.As a result,700 differentially expressed IncRNAs(431 up-regulated and 269 down-regulated)and 665 differentially expressed mRNAs(299 up-regulated and 366 down-regulated)were identified in CVB3 infection.Then we performed IncRNA-mRNA integrated pathway analysis to identify potential functional impacts of the differentially expressed mRNAs,in which IncRNA-mRNA correlation network was built.According to IncRNA-mRNA correlation,we found that XLOC-001188,an IncRNA down-regulated in CVB3 infection,was negatively correlated with NFAT5 mRNA,an anti-CVB3 gene reported previously.This interaction was supported by qPCR detection following siRNA-mediated knockdown of XLOC-001188,which showed an increase of NFAT5 mRNA and a reduction of CVB3 genomic RNA.In addition,we observed that four most significantly altered IncRNAs,SNHG11,RP11-145F16.2,RP11-1023L17.1 and RP11-1021N1.2 share several common correlated genes critical for CVB3 infection,such as BRE and IRF2BP1.In all,our studies reveal the alteration of IncRNA expression in CVB3 infection and its potential influence on CVB3 replication,providing useful information for future studies of enterovirus infection. | Lei Tong Ye Qiu Hui Wang Yunyue Qu Yuanbo Zhao Lexun Lin Yan Wang Weizhen Xu Wenran Zhao Hongyan He Guangze Zhao Mary HZhang Decheng Yang Xingyi Ge Zhaohua Zhong | 2019 | Virologica Sinica2019，34，6： | 2 |
| 7 | One-pot synthesis of 2,5-bis(hydroxymethyl)furan from biomass derived 5-(chloromethyl)furfural in high yield显示文摘5-(Chloromethyl)furfural(CMF),as a new platform molecular,has become a hot topic in the field of biorefinery.Herein,the one-pot conversion of CMF to 2,5-bis(hydroxymethyl)furan(BHMF)in the water phase was demonstrated for the first time.A 91%BHMF yield was obtained over Ru/Cu Oxcatalyst,and BHMF was mainly produced by the consecutive hydrolysis and hydrogenation of CMF with 5-hydroxymethylfurfural(HMF)as an intermediate.Kinetic studies revealed that the conversion of HMF to BHMF was the rate-determining step.Remarkably,the characterizations and density functional theory(DFT)calculations further revealed the lower electron density of Ru NPs in Ru/Cu Oxcatalyst,resulting in a larger adsorption energy and a smaller free energy difference for the formation of alcohols.The present findings offered a new pathway for biomass-derived diol production through CMF as a potential source. | Binglin Chen Yunchao Feng Sen Ma Weizhen Xie Guihua Yan Zheng Li Jonathan Sperry Shuliang Yang Xing Tang Yong Sun Lu Lin Xianhai Zeng | 2023 | Journal of Energy Chemistry2023，，1： | 1 |
| 8 | Base-free oxidative esterification of 5-hydroxymethylfurfural to furan-2,5-dimethylcarboxylate over n-doped carbon-supported Co/Fe bimetallic catalyst under batch-operation or continuous-flow conditions显示文摘Developing an efficient and easily available catalyst for the selective conversion of biomass-derived 5-hydroxymethylfurfural(HMF)into furan-2,5-dimethylcarboxylate(FDMC),a valuable biomass-based monomer,remains a high demand but formidable challenge.Herein,a facile strategy for the synthesis of N-doped carbon-supported Co/Fe bimetallic catalyst(CoFe-NC)was developed,which provided an outstanding FDMC yield of 93%in a batch reactor(base-free,80℃,2 bar O_(2),4 h).Interestingly,CoFe-NC also gave a high FDMC yield of 91%under continuous-flow conditions for 80 h(5 bar O_(2),80℃,GHSV 1320 h^(-1),LHSV 0.6 h^(-1),base-free).Notably,it is the first time that a non-noble catalyst gave such a high FDMC yield under continuous-flow conditions.The introduction of Fe could greatly improve both the electron intensity of Co-N_(x)species and basicity of the catalyst,which endowed CoFe-NC with improved O_(2)activation capacity and enhanced dehydrogenation activity for the oxidation-esterification of HMF.This work delineates the efficient strategy on the construction of N-doped carbon-supported non-noble catalyst,which might open a new avenue for developing highly efficient catalyst for FDMC production. | Weizhen Xie Binglin Chen Wenlong Jia Huai Liu Zheng Li Shuliang Yang Xing Tang Xianhai Zeng Yong Sun Xixian Ke Tianyuan Li Huayu Fang Lu Lin | 2022 | Journal of Energy Chemistry2022，，12： | 1 |
| 9 | Mechanism of reaction of nitrogen dioxide radical with hydroxycinnamic acid derivatives: a pulse radiolysis study 显示文摘 | Zhang Zhou'en Yao Side Lin WeiZhen | 1998 | Free Radical Research1998，29，： | 1 |
| 10 | Study on Heredity Rules of Cyclamen persicum Colors显示文摘To identify the theoretic foundation for maintaining and improving high quality varieties and breeding new F1 hybrids, flower color segregation occurred in the offspring in both self-pollination and cross- pollination of varieties of different colors were investigated. The main results indicate that the heredity of Cyclamen persicum color follows both quantitative and qualitative hereditary regularity. All genes can be classified as two groups of the throat-gene and coronal-gene occupying different spots on the chromosome. The colored gene is the dominant gene, while the white gene is the recessive one. The gene groups and their quantity determine the color of cyclamen persicum. And sometimes the throat- gene and the coronal-gene take a recombination, forming a new type of flower. | LIN Yan YIN Shulian BI Jun WANG Chunrong GUO Weizhen | 2006 | Chinese Forestry Science and Technology2006，5，3： | 0 |
| 11 | Treatment of Cr(VI)-containing nanowastes via the growth of nanomaterial显示文摘The environmental behavior, biological and ecological effects of nanomaterial have attracted much attention, and nanomaterial is prevalently used in the process of industrial manufacturing. However, the investigation on how to resolve the environmental problems of nanowastes is scarcely reported. We have proposed a novel method in which the toxicity of the waste is reduced during the fast growth of nanoparticals. It is suggested that this method could be used in the treatment of the Cr(VI)-containing nanowastes from the chlorate plants. In this work, the efficiencies of the treatment at both room and high temperatures were further studied. The craft route is advanced for the treatment at the high temperature. The phase, morphology, size, and thermal behavior of the detoxified solid were analyzed by XRD, SEM, and DTA. The solid was also tried as the raw of glaze. The disposal provided here will be a good example for the recycling of the hazardous nanowastes. | LIU WeiZhen XU XinJiang WANG YongJing HE Zhong ZHUO Nan HUANG Feng LIN Zhang | 2010 | Chinese Science Bulletin2010，55，4： | 0 |
| 12 | Clustering Analysis of Black-start Decision-making with a Large Group of Decision-makers显示文摘The optimization of black-start decision-making plays an important role in the rapid restoration of a power system after a major failure/outage.With the introduction of the concept of smart grids and the development of real-time communication networks,the black-start decision-makers are no longer limited to only one or a few power system experts such as dispatchers,but rather a large group of professional people in practice.The overall behaviors of a large decision-making group of decision-makers/experts are more complicated and unpredictable.However,the existing methods for black-start decision-making cannot handle the situations with a large group of decision-makers.Given this background,a clustering algorithm is presented to optimize the black-start decision-making problem with a large group of decision-makers.Group decision-making preferences are obtained by clustering analysis,and the final black-start decision-making results are achieved by combining the weights of black-start indexes and the preferences of the decision-making group.The effectiveness of the proposed method is validated by a practical case.This work extends the black-start decision-making problem to situations with a large group of decision-makers. | Liu, Weijia Lin, Zhenzhi Wen, Fushuan Xue, Yusheng Dai, Yan Sun, Weizhen Wang, Chao | 2012 | 电力系统自动化2012，36，8： | 0 |
| 13 | Photosensitized damage to telomere overhang and telomerase RNA by riboflavin显示文摘By ESR spin elimination and photocleavage assay, the mechanisms of one-electron oxidation damage of oligonucleotides by excited triplet state of riboflavin (Rb) have been elucidated. The results demonstrate that Rb, an endogenous photosensitizer, is capable of cleav- ing single-stranded telomeric overhang and the template region of telomerase RNA under UVA irradiation, resulting in blocking of reverse transcription of telomeric DNA which leads to the apoptosis of cancer cells ultimately. | Yuxia Liu Fuqiang Du Weizhen Lin Tiecheng Tu Wenxin Li Nianyun Lin | 2008 | Progress in Natural Science:Materials International2008，18，4： | 0 |
| 14 | Leaf Vein Variations and Gene Control Mode of Cyclamen Hederifolium显示文摘In order to explore the heredity of leaf veins of Cyclamen Hederifolium and to breed excellent varieties,selfing measurement for six types of different leaf veins were carried out and the genetic constitutions of leaf veins were studied according to the separation conditions of their progenies. The results showed that the inbred progenies of B or M types were B or M types with a percentage of 100% while the progenies of F,H,X and L types had character segregations. The separation law illustrated that leaf veins of Cyclamen Hederifolium were controlled by minor multiple genes and each locus was consisted of a pair of alleles,RLof RB. RL was responsible for the green phenotype of leaves and RBwas responsible for the silvery white phenotype of leaves. Leaves were deep green when the genotype of the locus was RLRL; leaves were green when the genotype was RLRB; leaves were silvery white when the genotype was RBRB. The aggregative pattern of each locus formed different leaf vein types. The gene control modes of leaf vein variations were the basis for the breeding of excellent varieties of Cyclamen Hederifolium. | Zhixin ZHAO Yan LIN Weizhen GUO | 2015 | Agricultural Biotechnology2015，4，5： | 0 |
| 15 | Optimal Variable Combinations of Co-pelletization of Eucalyptus Sawdust and Natural Forest Sawdust显示文摘Eucalyptus sawdust is a residue from fast-growing forest processing.Utilization of Eucalyptus sawdust as fuel by co-pelletization with natural forest sawdust could solve problems of waste disposal and material supply limitation of pellet production.This work targeted at providing a useful reference for improving pellet properties and optimizing variable combinations.Experiments were arranged using response surface methodology with a central composite design and carried out using a uniaxial piston-cylinder densification apparatus.Based on the analysis of variance of effects of variables on responses,the optimal models were all selected as quadratic and expressed in the form of regression equations.The differences between adjusted R2 and predicted R2 are all within 0.2 and the adequate precision is all greater than four illustrating the reliability of the established models.The optimal variable combinations were obtained according to the desired response goals and validation experiments were conducted.Errors between response predicted and actual values were calculated and applied to improve the model accuracy.After modification,final errors were reduced to less than 9%and could be accepted by pellet production.Experimental results also demonstrated that pellet properties and higher heating value were all increased by co-pelletization and optimization.This will be very beneficial for pellet application.Furthermore,these results could provide the required data for designing a suitable machine of pellet production. | Weizhen Li Yanqin Huang Lin Lang Yang Jiang Yan Wang Xiuli Yin | 2020 | Journal of Agricultural Science and Technology(B)2020，10，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员