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The Association between Fear of cOVID-19,Obsession with cOVID-19,and Post Traumatic Stress Disorder in Korean Emergency Rescue Firefighters:A cross-Sectional Study

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International Journal of Mental Health Promotion 2024年第6期26卷 475-480页

作者： Yun-Jung choi Heewon song Red cross college of Nursing Chung-Ang UniversitySeoulSouth Korea Department of Nursing Chung-Ang UniversitySeoulSouth Korea

During the rapid spread of cOVID-19,first responders are at risk of being exposed to cOVID-19 due to their role in providing first aid and responding to an unspecified number of *** uncertainty can have adverse mental health effects,such as increased anxiety and *** study aimed to investigate the degree of association between fear of cOVID-19,obsession with cOVID-19,and post-traumatic stress disorder(PTSD)in emergency rescue *** participants were 150 emergency rescue firefighters working in Region S,*** filled out self-report questionnaires:The data obtained through the Fear of cOVID-19 Scale,Obsession with cOVID-19 Scale,and Impact of Event Scale-Revised Korean version were subjected to nonparametric statistical analysis using SPSS WIN *** study found a significant correlation between emergency rescue firefighters’fear of cOVID-19,obsession with cOVID-19,and *** and obsession with cOVID-19 were higher among first responder firefighters who were directly involved in cOVID-19-related ***,a one-point increase in obsession was associated with a 2.837-point increase in *** on the results,we found that there is a need for effective control of obsessions and fears among first responder firefighters during cOVID-19,and we suggest that there is a need for mental health care for first responder firefighters during the pandemic through the development and support of programs to prevent and mitigate obsessions.

关键词： cOVID-19 emergency rescue firefighters fear of cOVID-19 mental health promotion obsession with cOVID-19 PTSD

c—F Bond Insertion into Indoles with cHBr_(2)F:An Efficient Method to Synthesize Fluorinated Quinolines and Quinolones

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chinese Journal of chemistry 2024年第10期42卷 1128-1132页

作者： chao Li Lei chen Hongye Wang Zixi Yan Bin Lyu Weiping Lyu c.angwei Jiang Dehua Lu Jiaxing Li Ning Jiao song song State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityXue Yuan Rd.38Beijing 100191China

A mild and practical method for synthesizing fluorinated quinoline derivatives,which have a wide range of applications in pharmaceuticals,materials,and organic synthesis,was described through c—F bond insertion into indoles using cHBr_(2)*** simple conditions,readily availability of cHBr_(2)F,as well as the versatility of the transformations make this strategy very powerful in synthesizing 3-fluoroquinoline and *** mechanistic studies reveal that bromofluorocarbene generated in-situ under basic condition was the key intermediate.

关键词： Skeleton edit Fluorocarbene Ring expansion Quinoline Quinolone

Rational cathode configuration with bilayer membranes to engineer current-collector-free high-areal-sulfur lithium-sulfur batteries

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Nano Research 2024年第6期17卷 5224-5232页

作者： Jianmei Han Hua Zhang Peng Wang Ning song Xuguang An Baojuan Xi Shenglin Xiong college of chemistry and chemical Engineering Taishan UniversityTai’an 271021China Key Laboratory of the colloid and Interface chemistry Ministry of Educationand School of Chemistry and Chemical EngineeringShandong UniversityJinan 250100China School of Mechanical Engineering Chengdu UniversityChengdu 610106China

The application of light-weight current collectors is preferred because of the increased energy density of the *** it in mind,the cathode is designed with self-made paperlike memberane as current collector coupled with another interlayer to enable the high-energy-density lithium-sulfur *** a facile and green step-by-step methodology,the hybrid membrane is finalized successfully,consisting of reduced graphene oxide sheets covering paper-derived carbon(GPc)bearing Fe@Fe2O3 and Fe1−xS@Fe2O3 core-shell nanoparticles(FeFeO/FeSFeO@GPc).The film works as the current collector and interlayer simultaneously considering the porous and conductive *** demonstrated by the electrochemical testing,the FeFeO/FeSFeO@GPc hybrid cell exhibits attractive cycling stability and superior rate *** cell configuration and structural/composition merits of FeFeO/FeSFeO@GPc film facilitate the faster reaction kinetics,conducive to the improvement of capacity *** view of the effective cathode design,the areal sulfur loading is increased to 10.46 mg·cm^(−2)and a reversible capacity of 6.67 mAh·cm^(−2)can be retained after 60 cycles at 0.1 c.

关键词： light-weight self-made current collector core-shell high-areal-sulfur lithium-sulfur batteries

Low-temperature graphitization of lignin via co-assisted electrolysis in molten salt

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Green Energy & Environment 2024年第9期9卷 1449-1458页

作者： Shijie Li Wei-Li song Xue Han Qingqing cui Yan-li Zhu Shuqiang Jiao Institute of Advanced Structure Technology Beijing Institute of Technology State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology

The ever-growing energy demand and environmental issues have stimulated the development of sustainable energy ***,an efficient and environmentally friendly electrochemical transformation technology was proposed to prepare highly graphitized carbon materials from an abundant natural resource-lignin （LG）.The preparation process mainly includes pyrolytic carbonization of raw LG material and electrochemical conversion of amorphous carbon ***,with the assistance of co catalyst,the graphitization degree of the products was significantly improved,in which the mechanism was the removal of heteroatoms in LG and the rearrangement of carbon atoms into graphite ***,tunable microstructures （nanoflakes） under catalytic effects could also be observed by controlling the electrolytic *** with the products cN1 （without catalyst） and cN5 （with 10%catalyst）,the specific surface area are 158.957 and202.246 m2g-1,*** used as the electrode material for lithium-ion batteries,cN5 delivered a competitive specific capacity of～350 m Ah g-1（0.5 c） compared with commercial *** strategy proposed in this work provides an effective way to extract value-added graphite materials from lignin and can be extended to the graphitization conversion of any other amorphous carbon precursor materials.

关键词： Lignin Graphitic carbon Electrochemical conversion Lithium-ion batteries

A mutation in the promoter of the yellow stripe-like transporter gene in cucumber results in a yellow cotyledon phenotype

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Journal of Integrative Agriculture 2024年第3期23卷 849-862页

作者： Jiawei Pan Jia song Rahat Sharif Xuewen Xu Shutong Li Xuehao chen School of Horticulture and Landscape Architecture Yangzhou UniversityYangzhou 225009China Institute of Vegetables Tianjin Academy of Agricultural SciencesTianjin 300384China

Leaf color mutants in higher plants are considered to be ideal materials for studying the chlorophyll biosynthesis,photosynthesis mechanism and chloroplast ***,we identified a spontaneous mutant,yc412,in cultivated cucumber that exhibited yellow *** yellow-lethal mutant was diagnosed with an abnormal chloroplast ultrastructure,and reduced photosynthetic capacity and pigment *** bulked segregant analysis-based whole-genome sequencing and fine genetic mapping,we narrowed the yellow cotyledons (yc) locus to a 96.8 kb interval on chromosome *** resequencing and molecular cloning,we showed that csyc is a potential candidate gene,which encodes a yellow stripe-like (YSL) *** T to c mutation in the promoter region of csyc caused the yellow cotyledon phenotype in *** to YZU027A (WT),the expression of csyc was significantly downregulated in the cotyledons of *** of csyc in cucumber via virus-induced gene silencing resulted in chlorotic leaves,mainly by suppressing the chlorophyll ***,a comparative transcriptome analysis revealed that chloroplast-related genes and chlorophyll biosynthesis genes were significantly downregulated in yc412 *** results provide new insights into the molecular function of the YSL transporter in plant chloroplast development and chlorophyll synthesis.

关键词： cucumber yellow-lethal cotyledons chloroplast development yellow stripe-like transporter

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Nano-silica modified lightweight and high-toughness carbon fiber/phenolic ablator with excellent thermal insulation and ablation performance

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Defence Technology（防务技术） 2024年第1期31卷 192-199页

作者： Wenjie Xu Wenda song Xianfeng Jia cheng Ma Jitong Wang Wenming Qiao Licheng Ling State Key Laboratory of chemical Engineering East China University of Science and TechnologyShanghai 200237China School of chemical Engineering and Materials Changzhou Institute of TechnologyChangzhou 213032China Key Laboratory of Specially Functional Polymeric Materials and Related Technology(Ministry of Education) School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

Lightweight and high-toughness carbon fiber/phenolic ablator(cFPA)is required as the Thermal Protection System(TPS)material of aerospace vehicles for next-generation space *** improve the ablative properties,silica sol with good particle size distribution prepared using tetramethoxysilane(TMOS)was blended with natural rubber latex and deposited onto carbon fiber felt,which was then integrated with phenolic aerogel matrix,introducing nano-silica into the framework of *** modified cFPA with a low density of 0.28—0.31 g/cm3exhibits strain-in-fracture as high as 31.2%and thermal conductivity as low as 0.054 W/(m·K).Furthermore,a trace amount of nano-silica could effectively protect cFPA from erosion of oxidizing atmosphere in different high-temperature *** oxyacetylene ablation test of 3000°c for 20 s shows a mass ablation rate of 0.0225 g/s,a linear ablation rate of 0.209 mm/s for the modified cFPA,which are 9.64%and 24.82%lower than the unmodified ***,the long-time butane ablation test of 1200°c for 200 s shows an insignificant recession with mass and linear ablation rate of 0.079 g/s and 0.039 mm/s,16.84%and 13.33%lower than the unmodified ***,the fixed thermocouple in the test also demonstrates a good thermal insulation performance with a low peak back-face temperature of 207.7°c,12.25%lower than the unmodified ***,the nano-silica modified cFPA with excellent overall performance presents promising prospects in high-temperature aerospace applications.

关键词： Nano-silica carbonfiber Phenolic aerogel Insulation Ablation

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Anticipating the lifespan: Predicting the durability of an anode-supported solid oxide fuel cell short stack over 50,000 h

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Progress in Natural Science:Materials International 2024年第3期34卷 606-613页

作者： Muhammad Zubair Khan Amjad Hussain Seung-Bok Lee Tak-Hyoung Lim Rak-Hyun song Department of Materials Science & Engineering Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology Hydrogen Energy Research Division Korea Institute of Energy Research Department of Advanced Energy and System Engineering Korea University of Science and Technology (UST)

In the present study, the operational lifetime of a solid oxide fuel(SOFc) short stack is predicted by investigating the performance degradation of both the short stack and its cells throughout 1000 h at 800°c. The short stack and integral cell voltages are continuously measured during the long-term test, with electrochemical impedance spectroscopy(EIS) conducted every 200 h. The short stack voltage decreased rapidly for the initial 200–300 h and afterwards, it decreased at a slow rate due to the increase in the Ohmic and polarization resistances in the same manner. Scanning electron microscopy results show that there is no delamination or cracking among constituent layers of the short-stack cells. The single degradation effects of the Ni coarsening in the anode, cation migration and surface segregation in cathode and oxide scale growth in metallic interconnect mesh are successfully integrated into a comprehensive lifetime prediction model. The experimentally measured voltage degradation data of the short stack fits well with the developed mathematical model and allows the successful prediction of the lifetime up to 50,000 h.

关键词： Degradation Impedance Lifetime SOFc Stack

Advances in single-cell sequencing technology in microbiome research

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Genes & Diseases 2024年第4期11卷 201-219页

作者： Yinhang Wu Jing Zhuang Yifei song Xinyi Gao Jian chu Shuwen Han Huzhou central Hospital Affiliated Central Hospital Huzhou UniversityHuzhouZhejiang 313000China Key Laboratory of Multiomics Research and clinical Transformation of Digestive cancer of Huzhou HuzhouZhejiang 313000China The Fifth Affiliated clinical Medical college of Zhejiang chinese Medical University HangzhouZhejiang 313000China Zhejiang Provincial People's Hospital and Affiliated People's Hospital Hangzhou Medical CollegeHangzhouZhejiang 310000China

With the rapid development of histological techniques and the widespread applica-tion of single-cell sequencing in eukaryotes,researchers desire to explore individual *** and functional expression,which deepens our understanding of *** this review,the history of the development of microbial detection technologies was revealed and the difficulties in the application of single-cell sequencing in microorganisms were dissected as ***,the characteristics of the currently emerging microbial single-cell sequencing(Microbe-seq)technology were summarized,and the prospects of the application of Microbe-seq in microorganisms were distilled based on the current development *** its mature development,the Microbe-seq technology was still in the optimization stage.A retrospective study was conducted,aiming to promote the widespread application of single-cell sequencing in microorganisms and facilitate further improvement in the technol-ogy.

关键词： Bacterialantibiotic resistance Host immunity Host-phage interaction Microbial single-cell sequencing Microorganisms Single cell Single-cell sequencing technology

Engineering g-c_(3)N_(4)based materials for advanced photocatalysis:Recent advances

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Green Energy & Environment 2024年第2期9卷 166-197页

作者： Xin-Lian song Lei chen Li-Jiao Gao Jin-Tao Ren Zhong-Yong Yuan National Institute for Advanced Materials School of Materials Science and EngineeringSmart Sensing Interdisciplinary Science CenterNankai UniversityTianjin300350China Key Laboratory of Advanced Energy Materials chemistry(Ministry of Education) Nankai UniversityTianjin300071China

Photocatalysis driven by abundant yet intermittent solar energy has considerable potential in renewable energy generation and environmental *** outstanding electronic structure and physicochemical properties of graphitic carbon nitride(g-c_(3)N_(4)),together with unique metal-free characteristic,make them ideal candidates for advanced photocatalysts *** review summarizes the up-to-date advances on g-c_(3)N_(4)based photocatalysts from ingenious-design strategies and diversified photocatalytic ***,the advantages,fabrication methods and limitations of each design strategy are systemically *** order to deeply comprehend the inner connection of theory–structure–performance upon g-c_(3)N_(4)based photocatalysts,structure/composition designs,corresponding photocatalytic activities and reaction mechanisms are jointly discussed,associated with introducing their photocatalytic applications toward water splitting,carbon dioxide/nitrogen reduction and pollutants degradation,***,the current challenges and future perspectives for g-c_(3)N_(4)based materials for photocatalysis are briefly *** design strategies and limitations are also instructive for constructing g-c_(3)N_(4) based materials in other energy and environment-related applications.

关键词： Graphitic carbon nitride g-c_(3)N_(4) Design strategies Photocatalysis Photocatalysts Reaction mechanism

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