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    题名 作者 年代 出处 被引量
1A COUNTER PROPAGATING WAVE STATE WITH A PERIODICALLY HORIZONTAL MOTION OF DEFECTS显示文摘Convection in a horizontal fluid layer heated from below is one of models for studying patterns of convection in binary fluid mixtures and has been extensively studied. In this article, the convection structures in a rectangular cell were investigated for the aspect-ratio Γ =12 and the separation ratio ψ = -0 .47. Simulations were preformed by solving the hydrodynamic equations using the SIMPLE method. A Counter Propagating Wave (CPW) state was found in binary fluid convection with a periodically horizontal motion of defects, and the pattern dynamics was further discuss.NING Li-zhong QI Xin YUAN Zhe SHI Feng 2008Journal of Hydrodynamics2008,20,5:40
2Chronic intermittent hypobaric hypoxia protects the heart against ischemia/reperfusion injury through upregulation of antioxidant enzymes in adult guinea pigs显示文摘Hui-cai GUO Zhe ZHANG Li-nan ZHANG Chen XIONG Chen FENG Qian LIU Xu LIU Xiao-lu SHI Yong-li WANG 2009Acta Pharmacologica Sinica2009,30,7:20
3Human umbilical cord-derived mesenchymal stem cell therapy in patients with COVID-19:a phase 1 clinical trial显示文摘No effective drug treatments are available for coronavirus disease 2019(COVID-19).Host-directed therapies targeting the underlying aberrant immune responses leading to pulmonary tissue damage,death,or long-term functional disability in survivors require clinical evaluation.We performed a parallel assigned controlled,non-randomized,phase 1 clinical trial to evaluate the safety of human umbilical cord-derived mesenchymal stem cells(UC-MSCs)infusions in the treatment of patients with moderate and severe COVID-19 pulmonary disease.The study enrolled 18 hospitalized patients with COVID-19(n=9 for each group).The treatment group received three cycles of intravenous infusion of UC-MSCs(3×107 cells per infusion)on days 0,3,and 6.Both groups received standard COVID-treatment regimens.Adverse events,duration of clinical symptoms,laboratory parameters,length of hospitalization,serial chest computed tomography(CT)images,the PaO2/FiO2 ratio,dynamics of cytokines,and IgG and IgM anti-SARS-CoV-2 antibodies were analyzed.No serious UC-MSCs infusion-associated adverse events were observed.Two patients receiving UC-MSCs developed transient facial flushing and fever,and one patient developed transient hypoxia at 12 h post UC-MSCs transfusion.Mechanical ventilation was required in one patient in the treatment group compared with four in the control group.All patients recovered and were discharged.Our data show that intravenous UC-MSCs infusion in patients with moderate and severe COVID-19 is safe and well tolerated.Phase 2/3 randomized,controlled,double-blinded trials with long-term follow-up are needed to evaluate the therapeutic use of UC-MSCs to reduce deaths and improve long-term treatment outcomes in patients with serious COVID-19.Fanping Meng Ruonan Xu Siyu Wang Zhe Xu Chao Zhang Yuanyuan Li Tao Yang Lei Shi Junliang Fu Tianjun Jiang Lei Huang Peng Zhao Xin Yuan Xing Fan Ji-Yuan Zhang Jinwen Song Dawei Zhang Yanmei Jiao Limin Liu Chunbao Zhou Markus Maeurer Alimuddin Zumla Ming Shi Fu-Sheng Wang 2020Signal Transduction and Targeted Therapy2020,5,1:16
4Effect of human umbilical cord-derived mesenchymal stem cells on lung damage in severe COVID-19 patients:a randomized,double-blind,placebo-controlled phase 2 trial显示文摘Treatment of severe Coronavirus Disease 2019(COVID-19)is challenging.We performed a phase 2 trial to assess the efficacy andsafety of human umbilical cord-mesenchymal stem cells(UC-MScs)to treat severe coViD-19 patients with lung damage,based onour phase 1 data.In this randomized,double-blind,and placebo-controlled trial,we recruited 101 severe coVID-19 patients withlung damage.They were randomly assigned at a 2:1 ratio to receive either UC-MSCs(4×10^(7)cells per infusion)or placebo on day 0,3,and 6.The primary endpoint was an altered proportion of whole lung lesion volumes from baseline to day 28.Other imagingoutcomes,6-minute walk test(6-MWT),maximum vital capacity,diffusing capacity,and adverse events were recorded and analyzed.In all,100 COVID-19 patients were finally received either UC-MSCs in=65)or placebo(n=35).UC-MSCs administrationexerted numerical improvement in whole lung lesion volume from baseline to day 28 compared with the placebo(the mediandifference was-13.31%,95%Cl-29.14%,2.13%,P=0.08).UC-MSCs significanty reduced the proportions of solid componentlesion volume compared with the placebo(median difference:-15.45%;95%CI-30.82%,-0.39%;P=0.043).The 6-MWT showedan increased distance in patients treated with UC-MSCs(difference:27.00 m;95%CI 0.00,57.00;P=0.057).The incidence of adverseevents was similar in the two groups.These results suggest that UC-MSCs treatment is a safe and potentially effective therapeuticapproach for COVID-19 patients with lung damage.A phase 3 trial is required to evaluate effects on reducing mortality andpreventing long-term pulmonary disability.Lei Shi Hai Huang Xuechun Lu Xiaoyan Yan Xiaojing Jiang Ruonan Xu Siyu Wang Chao Zhang Xin Yuan Zhe Xu Lei Huang Jun-Liang Fu Yuanyuan Li Yu Zhang Wei-Qi Yao Tianyi Liu Jinwen Song Liangliang Sun Fan Yang Xin Zhang Bo Zhang Ming Shi Fanping Meng Yanning Song Yongpei Yu Jiqiu Wen Qi Li Qing Mao Markus Maeurer Alimuddin Zumla Chen Yao Wei-Fen Xie Fu-Sheng Wang 2021Signal Transduction and Targeted Therapy2021,6,3:13
5Morphological analysis on adhesion and invasion involved in endometriosis with tissue culture显示文摘背景子宫内膜增生(他们) 是主要在繁殖 age.However 的女人发现的良性的妇科的疾病,它的致病仍然糟糕被理解。我们的实验被设计为子宫内膜和腹膜的 coculture 建立一个马厩和可靠文化环境,在 laparoscopy 期间与 endometriois 从 6 个女人被取样以便从病人观察子宫内膜的粘附 / 侵略能力与或没有能分泌的阶段和腹膜的 EM.Methods Endometria。六作为控制与卵巢的 teratoma 或简单卵巢的包囊被拿。我们进四的 cocultured 子宫内膜和腹膜组织(从与从他们的腹膜有教养的他们的子宫内膜,从与从控制的腹膜有教养的控制的子宫内膜,从与从非他们的腹膜有教养的他们的子宫内膜和从与从他们的腹膜有教养的控制的子宫内膜)在煤气液体的表面文化和在里面中等的文化观察粘附/侵略进程。标本为组织学在 1 个小时 6 个小时 12 个小时 24 个小时, 2 天, 3 天, 4 天, 5 天, 6 天和 7 天被收集, cytokeratin 上的 immunofluorescence 和 immunohistochemical 分析 8 ( CK8 )并且 CD10.Results 煤气液体的表面文化比为织物形态学和子宫内膜的幸存的维护的在里面中等的文化优异。CK8 immunoflurescence 没有或没有他们在在病人之间的粘附过程表明显著差别。 CD10 免疫化学从他们病人表明了子宫内膜的 stromal 房间的经常的侵略进多达 3 天文化的腹膜,当从非他们病人的 endometriotic 房间没入侵煤气液体的表面进 peritoneum.Conclusions 时,文化是为观察到在从有他们的病人的他们损害 formation.Endometrium 的早事件在 coculture 期间显示出增加的侵略能力的一个合适的模型,它可能帮助解释子宫内膜增生的病原学。SHI Jing-hua YANG Yan-jun DONG Zhe LANG Jing-he LENG Jin-hua 2011Chinese Medical Journal2011,,1:11
6Conductive,Stretchable,and Self-healing Ionic Gel Based on Dynamic Covalent Bonds and Electrostatic Interaction显示文摘Integrating multiple functions into one gel that can be widely applied to electronic devices as well as chemical and biomedical engineering remains a big challenge.Here,a multifunctional ionic liquid/dynamic covalent bonds (ionic/DCB) type gel was designed and synthesized via one-pot polymerization.With the assistance of electrostatic interaction provided by the imidazolium cations of IL and the reversible DCB of boronic ester,as-prepared ionic/DCB gel showed good stretchable properties and high ionic conductivity at ambient conditions.In addition,the electrostatic interaction between imidazolium cations and sulfonate anions and the reversible DCB led to enhanced chain mobility and thereby excellent self-healing properties.Particularly,sulfonate anions in ionic/DCB gel could alleviate the migration of electronegative polysulfide and promote the transportation of electropositive lithium ion in lithium-sulfur battery system.Therefore,this work provides a new insight to promote the current research on self-healing gels,hopefully expanding their applications in electronic devices.Yi Sun Yong-Yuan Ren Qi Li Rong-Wei Shi Yin Hu Jiang-Na Guo Zhe Sun Feng Yan 2019Chinese Journal of Polymer Science2019,37,11:9
7A Localization Algorithm Using a Mobile Anchor Node Based on Region Determination in Underwater Wireless Sensor Networks显示文摘At present, most underwater positioning algorithms improve the positioning accuracy by increasing the number of anchor nodes which resulting in the increasing energy consumption. To solve this problem, the paper proposes a localization algorithm assisted by mobile anchor node and based on region determination(LMRD), which not only improves the positioning accuracy of nodes positioning but also reduces the energy consumption. This algorithm is divided into two stages: region determination stage and location positioning stage. In the region determination stage, the target region is divided into several sub-regions by the region division strategy with the smallest overlap rate which can reduce the number of virtual anchor nodes and lock the target node to a sub-region, and then through the planning of mobile nodes to optimize the travel path, reduce the moving distance, and reduce system energy consumption. In the location positioning stage, the target node location can be calculated using the HILBERT path planning and trilateration. The simulation results show that the proposed algorithm can improve the positioning accuracy when the energy consumption is reduced.XU Tingting WANG Jingjing SHI Wei WANG Jianfeng CHEN Zhe 2019Journal of Ocean University of China2019,18,2:8
8Two-Dimensional Tellurium:Progress,Challenges,and Prospects显示文摘Since the successful fabrication of two-dimensional(2D)tellurium(Te)in 2017,its fascinating properties including a thickness dependence bandgap,environmental stability,piezoelectric effect,high carrier mobility,and photoresponse among others show great potential for various applications.These include photodetectors,field-effect transistors,piezoelectric devices,modulators,and energy harvesting devices.However,as a new member of the 2D material family,much less known is about 2D Te compared to other 2D materials.Motivated by this lack of knowledge,we review the recent progress of research into 2D Te nanoflakes.Firstly,we introduce the background and motivation of this review.Then,the crystal structures and synthesis methods are presented,followed by an introduction to their physical properties and applications.Finally,the challenges and further development directions are summarized.We believe that milestone investigations of 2D Te nanoflakes will emerge soon,which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.Zhe Shi Rui Cao Karim Khan Ayesha Khan Tareen Xiaosong Liu Weiyuan Liang Ye Zhang Chunyang Ma Zhinan Guo Xiaoling Luo Han Zhang 2020Nano-Micro Letters2020,12,8:8
9Allele-defined genome reveals biallelic differentiation during cassava evolution显示文摘Dear Editor,Generation of heterozygous genomes by hybridization between or within species can help maintain plant diversity and serve as a potential source of new species(Baek et al.,2018).Moreover,genomic heterozygosity is associated with genomic coadaptation,developmental stability,and heterosis.Accurate definition of alleles in haplotypes is necessary to precisely characterize allelic variation controlling agriculturally important traits(Shi et al.,2019).Currently,most released genomes have mosaic assembly of haplotypes due to random selection or collapse of alleles during genome assembly(Shi et al.,2019),which masked allelic variation and functional differentiation of divergent alleles in heterozygous species.Wei Hu Changmian Ji Haitao shi Zhe Liang Zehong Ding Jianqiu Ye Wenjun Ou Gang Zhou Weiwei Tie Yan Yan Jinghao Yang Xiaoying Yang Yunxie Wei Zhiqiang Jin Jianghui Xie Ming Peng Wenquan Wang Anping Guo Biyu Xu Jianchun Guo Songbi Chen Liming Ma Mingcheng Wang Yang Zhou Xiaolong Li Ruoxi Li Siyi Guo Xinhui Xiao Zhongqing Wan Feifei An Jie Zhang Qingyun Leng Yin Li Ray Ming Kaimian Li 2021Molecular Plant2021,14,6:8
10Super-resolution fluorescence-assisted diffraction computational tomography reveals the threedimensional landscape of the cellular organelle interactome显示文摘The emergence of super-resolution(SR)fluorescence microscopy has rejuvenated the search for new cellular substructures.However,SR fluorescence microscopy achieves high contrast at the expense of a holistic view of the interacting partners and surrounding environment.Thus,we developed SR fluorescence-assisted diffraction computational tomography(SR-FACT),which combines label-free three-dimensional optical diffraction tomography(ODT)with two-dimensional fluorescence Hessian structured illumination microscopy.The ODT module is capable of resolving the mitochondria,lipid droplets,the nuclear membrane,chromosomes,the tubular endoplasmic reticulum,and lysosomes.Using dual-mode correlated live-cell imaging for a prolonged period of time,we observed novel subcellular structures named dark-vacuole bodies,the majority of which originate from densely populated perinuclear regions,and intensively interact with organelles such as the mitochondria and the nuclear membrane before ultimately collapsing into the plasma membrane.This work demonstrates the unique capabilities of SR-FACT,which suggests its wide applicability in cell biology in general.Dashan Dong Xiaoshuai Huang Liuju Li Heng Mao Yanquan Mo Guangyi Zhang Zhe Zhang Jiayu Shen Wei Liu Zeming Wu Guanghui Liu Yanmei Liu Hong Yang Qihuang Gong Kebin Shi Liangyi Chen 2020Light(Science & Applications)2020,9,1:7
11Size-controlled and large-scale synthesis of organic-soluble Ag nanocrystals in water and their formation mechanismYu-yuan SHI Bin SUN Zhe ZHOU Yong-tao WU Mei-fang ZHU 2011Progress in Natural Science:Materials International2011,21,6:7
12CD147 antibody specifically and effectively inhibits infection and cytokine storm of SARS-CoV-2 and its variants delta,alpha,beta,and gamma显示文摘SARS-CoV-2 mutations contribute to increased viral transmissibility and immune escape,compromising the effectiveness of existing vaccines and neutralizing antibodies.An in-depth investigation on COVID-19 pathogenesis is urgently needed to develop a strategy against SARS-CoV-2 variants.Here,we identified CD147 as a universal receptor for SARS-CoV-2 and its variants.Meanwhile,Meplazeumab,a humanized anti-CD147 antibody,could block cellular entry of SARS-CoV-2 and its variants-alpha,beta,gamma,and delta,with inhibition rates of 68.7,75.7,52.1,52.1,and 62.3%at 60μg/ml,respectively.Furthermore,humanized CD147 transgenic mice were susceptible to SARS-CoV-2 and its two variants,alpha and beta.When infected,these mice developed exudative alveolar pneumonia,featured by immune responses involving alveoli-infiltrated macrophages,neutrophils,and lymphocytes and activation of IL-17 signaling pathway.Mechanistically,we proposed that severe COVID-19-related cytokine storm is induced by a'spike protein-CD147-CyPA signaling axis':Infection of SARS-CoV-2 through CD147 initiated the JAK-STAT pathway,which further induced expression of cyclophilin A(CyPA);CyPA reciprocally bound to CD147 and triggered MAPK pathway.Consequently,the MAPK pathway regulated the expression of cytokines and chemokines,which promoted the development of cytokine storm.Importantly,Meplazumab could effectively inhibit viral entry and inflammation caused by SARS-CoV-2 and its variants.Therefore,our findings provided a new perspective for severe COVID-19-related pathogenesis.Furthermore,the validated universal receptor for SARS-CoV-2 and its variants can be targeted for COVID-19 treatment.Jiejie Geng Liang Chen Yufeng Yuan Ke Wang Youchun Wang Chuan Qin Guizhen Wu Ruo Chen Zheng Zhang Ding Wei Peng Du Jun Zhang Peng Lin Kui Zhang Yongqiang Deng Ke Xu Jiangning Liu Xiuxuan Sun Ting Guo Xu Yang Jiao Wu Jianli Jiang Ling Li Kun Zhang Zhe Wang Jing Zhang Qingguo Yan Hua Zhu Zhaohui Zheng Jinlin Miao Xianghui Fu Fengfan Yang Xiaochun Chen Hao Tang Yang Zhang Ying Shi Yumeng Zhu Zhuo Pei Fei Huo Xue Liang Yatao Wang Qingyi Wang Wen Xie Yirong Li Mingyan Shi Huijie Bian Ping Zhu Zhi-Nan Chen 2021Signal Transduction and Targeted Therapy2021,6,10:6
13Antidepressant-like effects and memory enhancement of a herbal formula in mice exposed to chronic mild stress显示文摘Shen Yuan Gan(SYG)is a Chinese herbal prescription composed of total saponins of Panax ginseng and total oligosaccharide esters of Polygala tenuifolia(2:1).Our previous studies have demonstrated that SYG has antidepressant-like effects in various mouse models of behavioral depression.The present study aimed to test whether SYG affected chronic mild stress(CMS)-induced depression and cognitive impairment in mice.We found that a 5-week CMS schedule induced significant degradation of the coat state,decreased sucrose intake in the sucrose-preference test,and increased the latency to feed in the noveltysuppressed feeding test.All of these CMS-induced changes were ameliorated by SYG(100 and 200mg/kg)and fluoxetine(10 mg/kg).In addition,SYG restored the decreased monoamine neurotransmitter concentrations(serotonin,dopamine,norepinephrine and acetylcholine)induced by CMS in the prefrontal cortex.Interestingly,SYG ameliorated CMS-induced cognitive impairment in the step-through test,and increased the acetylcholine level in the prefrontal cortex.These results suggest that SYG has an antidepressant-like action and enhances cognition by modulating the serotonin,dopamine,norepinephrine,and acetylcholine levels in the prefrontal cortex.Xiu-Ping Sun Si-Di Li Zhe Shi Teng-Fei Li Rui-Le Pan Qi Chang Chuan Qin Xin-Min Liu 2013Neuroscience Bulletin2013,29,6:6
14Multivariate predictive model for asymptomatic spontaneous bacterial peritonitis in patients with liver cirrhosis显示文摘BACKGROUNDSpontaneous bacterial peritonitis (SBP) is a detrimental infection of the asciticfluid in liver cirrhosis patients, with high mortality and morbidity. Earlydiagnosis and timely antibiotic administration have successfully decreased themortality rate to 20%-25%. However, many patients cannot be diagnosed in theearly stages due to the absence of classical SBP symptoms. Early diagnosis ofasymptomatic SBP remains a great challenge in the clinic.AIMTo establish a multivariate predictive model for early diagnosis of asymptomaticSBP using positive microbial cultures from liver cirrhosis patients with ascites.METHODSA total of 98 asymptomatic SBP patients and 98 ascites liver cirrhosis patients withnegative microbial cultures were included in the case and control groups,respectively. Multiple linear stepwise regression analysis was performed toidentify potential indicators for asymptomatic SBP diagnosis. The diagnosticperformance of the model was estimated using the receiver operatingcharacteristic curve.RESULTSPatients in the case group were more likely to have advanced disease stages,cirrhosis related-complications, worsened hematology and ascites, and higher mortality. Based on multivariate analysis, the predictive model was as follows: y (P) = 0.018 + 0.312 × MELD (model of end-stage liver disease) + 0.263 × PMN(ascites polymorphonuclear) + 0.184 × N (blood neutrophil percentage) + 0.233 ×HCC (hepatocellular carcinoma) + 0.189 × renal dysfunction. The area under thecurve value of the established model was 0.872, revealing its high diagnosticpotential. The diagnostic sensitivity was 73.5% (72/98), the specificity was 86.7%(85/98), and the diagnostic efficacy was 80.1%.CONCLUSIONOur predictive model is based on the MELD score, polymorphonuclear cells,blood N, hepatocellular carcinoma, and renal dysfunction. This model mayimprove the early diagnosis of asymptomatic SBP.Bo Tu Yue-Ning Zhang Jing-Feng Bi Zhe Xu Peng Zhao Lei Shi Xin Zhang Guang Yang En-Qiang Qin 2020World Journal of Gastroenterology2020,26,29:5
15Protective effects of glycine pretreatment on brain-death donor liver显示文摘BACKGROUND: Morphological and functional changes commonly occur in livers of brain-death donors. Preven- tion of liver injury from brain-death will benefit the results of transplantation. This study was conducted to evaluate the protection effects of glycine on the liver of brain-death donor. METHODS: Fourty-two male Wistar rats were randomly divided into brain-death donor (BDD) group (B), glycine pretreatment group with BDD (G), and strychnine pre- treatment group with BDD(S). For these groups, brain death model was established in donor rats and liver trans- plantation was performed subsequently utilizing microsur- gical techniques. After the establishment of the model and during cold rinsing of liver donors or liver reperfusion of recipients, glycine was given at a dose of 0. 6 mmol, 25 μmol and 25 μmol in the group G, and a same dose of gly- cine and strychnine (1000 :1) was prescribed for the group S, but nothing for the group B. Before cold rinsing at 2 and 6 hours after portal vein(PV) reperfusion, blood sam- ples were taken from infrahepatic vena cava (IHVC) to de- termine the levels of alanine aminotransferase (ALT), as- partate aminotransferase (AST), tumor necrosis factor al- pha (TNF-α) and hyaluronic acid (HA). At 6 hours after PV reperfusion, graft samples were fixed for morphological observation and apoptosis of hepatocytes was detected using the TUNEL method. RESULTS: Before liver cold rinsing and at 2 and 6 hours af- ter PV reperfusion, the serum levels of ALT, AST, TNF-α, HA and apoptosis index (AI) in the groups B and S were significantly higher than those in the group G (P <0.05). There was no significant difference between the groups B and S (P>0.05). Electron microscopy showed that Kupffer cells were activated and hepatic cells injured more obvious- ly in the groups B and S than in the group G. CONCLUSION: Glycine pretreatment can improve the via-bility of the liver of the brain-death donor rat.Shui-Jun Zhang, Ji-Hua Shi, Zhe Tang, Yang Wu and Shi Chen Zhengzhou, China Department of Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China Institute of Organ Transplantation, Tongji Medical College , Huazhong University of Science and Technology, Wuhan 430030 , China 2005Hepatobiliary & Pancreatic Diseases International2005,4,1:5
16Rational development of a human antibody cocktail that deploys multiple functions to confer Pan-SARS-CoVs protection显示文摘Structural principles underlying the composition and synergistic mechanisms of protective monoclonal antibody cocktails are poorly defined.Here,we exploited antibody cooperativity to develop a therapeutic antibody cocktail against SARS-CoV-2.On the basis of our previously identified humanized cross-neutralizing antibody H014,we systematically an a lyzed a fully human n aive antibody library and rationally identified a potent neutralizing antibody partner,P17,which confers effective protection in animal model.Cryo-EM studies dissected the nature of the P17 epitope,which is SARS-CoV-2 specific and distinctly different from that of HOI4.High-resolution structure of the SARS-CoV-2 spike in complex with HOM and P17,together with functional investigations revealed that in a two-antibody cocktail,synergistic neutralization was achieved by S1 shielding and conformational locking,thereby blocking receptor attachment and viral membrane fusion,conferring high potency as well as robustness against viral mutation escape.Furthermore,cluster analysis identified a hypothetical 3rd antibody partner for further reinforcing the cocktail as pan-SARS-CoVs therapeutics.Hangping Yao Yao Sun Yong-Qiang Deng Nan Wang Yongcong Tan Na-Na Zhang Xiao-Feng Li Chao Kong Yan-Peng Xuc Qi Chen Tian-Shu Cao Hui Zhao Xintian Yan Lei Cao Zhe Lv Dandan Zhu Rui Feng Nanping Wu Wenhai Zhang Yuhao Hu Keda Chen Rong-Rong Zhang Qingyu Lv Shihui Sun Yunhua Zhou Run Yan Guan Yang Xinglu Chanjuan Liu Xiangyun Lu Linfang Cheng Hongying Qiu Xing-Yao Huang Tianhao Weng Danrong Shi Weidong Jiang Junbin Shao Lei Wang Jie Zhang Tao Jiang Guojun Lang Cheng-Feng Qinc Lanjuan Li Xiangxi Wang 2021Cell Research2021,31,1:5
17Evaluation of acute kidney injury as defined by the risk, injury, failure, loss, and end-stage criteria in critically ill patients undergoing abdominal aortic aneurysm repair显示文摘YUE Jia-ning LUO Zhe GUO Da-qiao XU Xin CHEN Bin JIANG Jun-hao YANG Jue SHI Zhen-yu ZHU Ting JU Min-jie TU Guo-wei WANG Yu-qi ZHU Du-ming FU Wei-guo 2013Chinese Medical Journal2013,,3:4
18Genetic characterization and potential molecular dissemination mechanism of tet(31) gene in Aeromonas caviae from an oxytetracycline wastewater treatment system显示文摘Recently, the rarely reported tet(31) tetracycline resistance determinant was commonly found in Aeromonas salmonicida, Gallibacterium anatis, and Oblitimonas alkaliphila isolated from farming animals and related environment. However, its distribution in other bacteria and potential molecular dissemination mechanism in environment are still unknown. The purpose of this study was to investigate the potential mechanism underlying dissemination of tet(31) by analysing the tet(31)-carrying fragments in A. caviae strains isolated from an aerobic biofilm reactor treating oxytetracycline bearing wastewater. Twenty-three A. caviae strains were screened for the tet(31) gene by polymerase chain reaction(PCR). Three strains(two harbouring tet(31), one not) were subjected to whole genome sequencing using the PacBio RSII platform. Seventeen A. caviae strains carried the tet(31) gene and exhibited high resistance levels to oxytetracycline with minimum inhibitory concentrations(MICs)ranging from 256 to 512 mg/L. tet(31) was comprised of the transposon Tn6432 on the chromosome of A. caviae, and Tn6432 was also found in 15 additional tet(31)-positive A. caviae isolates by PCR. More important, Tn6432 was located on an integrative conjugative element(ICE)-like element, which could mediate the dissemination of the tet(31)-carrying transposon Tn6432 between bacteria. Comparative analysis demonstrated that Tn6432 homologs with the structure ISCR2-ΔphzF-tetR(31)-tet(31)-ΔglmM-sul2 were also carried by A. salmonicida, G. anatis, and O. alkaliphila, suggesting that this transposon can be transferred between species and even genera. This work provides the first report on the identification of the tet(31) gene in A. caviae, and will be helpful in exploring the dissemination mechanisms of tet(31) in water environment.Yanhong Shi Zhe Tian Sébastien Olivier Leclercq Hong Zhang Min Yang Yu Zhang 2019Journal of Environmental Sciences2019,31,2:4
19Photonic cavity enhanced high-performance surface plasmon resonance biosensor显示文摘Herein we propose a novel strategy to enhance surface plasmon resonance(SPR)by introducing a photonic cavity into a total-internal-reflection architecture.The photonic cavity,which is comprised of a highly reflective photonic crystal(PC),defect layers,and a gold(Au)film,enables Fabry–Perot(FP)resonances in the defect layers and therefore narrows the SPR resonance width in the metallic surface as well as increases the electric field intensity and penetration depth in the evanescent region.The fabricated sensor exhibits a 5.7-fold increase in the figure of merit and a higher linear coefficient as compared with the conventional Au-SPR sensor.The demonstrated PC/FP cavity/metal structure presents a new design philosophy for SPR performance enhancement.GUI-SHI LIU XIN XIONG SHIQI HU WEICHENG SHI YAOFEI CHEN WENGUO ZHU HUADAN ZHENG JIANHUI YU NUR HIDAYAH AZEMAN YUNHAN LUO ZHE CHEN 2020Photonics Research2020,8,4:4
20CRA-40/Atmosphere—The First-Generation Chinese Atmospheric Reanalysis(1979–2018):System Description and Performance Evaluation显示文摘Atmospheric reanalysis reproduces the past atmospheric conditions through assimilation of historical meteorological observations with fixed version of a numerical weather prediction(NWP)model and data assimilation(DA)system.It is widely used in weather,climate,and even business-related research and applications.This paper reports the development of CMA’s first-generation global atmospheric reanalysis(RA)covering 1979–2018(CRA-40;CRA refers to CMA-RA).CRA-40 is produced by using the Global Spectral Model(GSM)/Gridpoint Statistical Interpolation(GSI)at a 6-h time interval and a TL574 spectral(34-km)resolution with the model top at 0.27 hPa.A large number of reprocessed satellite data and widely collected conventional observations were assimilated during the reanalyzing process,including the reprocessed atmospheric motion vector(AMV)products from FY-2C/D/E/G satellites,dense conventional observations(at about 120 radiosonde and 2400 synoptic stations)over China,as well as MWHS-2 and GNSS-RO observations from FY-3C.The reanalysis fitting to observations is improved over time,especially for surface pressure with root-mean-square error reduced from 1.05 hPa in 1979 to 0.8 hPa,and for upper air temperature from 1.65 K in 1979 to 1.35 K,in 2018.The patterns of global analysis increments for temperature,specific humidity,and zonal wind are consistent with the changes in the observing system.Near surface temperature from the model’s 6-h forecast reflects the global warming trend reasonably.The CRA-40 precipitation pattern matches well with those of GPCP and other reanalyses.CRA-40 also successfully captures the QBO and its vertical and temporal development,hemispherical atmospheric circulation change,and moisture transport by the East Asian summer monsoon.CRA is now operationally running in near real time as a climate data assimilation system in CMA.Zhiquan LIU Lipeng JIANG Chunxiang SHI Tao ZHANG Zijiang ZHOU Jie LIAO Shuang YAO Jingwei LIU Minyan WANG Huiying WANG Xiao LIANG Zhisen ZHANG Yan YAO Ting ZHU Zhe CHEN Wenhui XU Lijuan CAO Hui JIANG Kaixi HU 2023Journal of Meteorological Research2023,37,1:4
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