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22篇 您的检索式:作者名="Yuqiu Liu"
    题名 作者 年代 出处 被引量
1Acupuncture preconditioning protects hippocampal neurons from transient ischemia/reperfusion injury显示文摘The present study established a model of brain ischemia in aged rats using four-vessel occlusion.We observed hippocampal CA1 neuronal apoptosis and apoptosis-mediated protease caspase-3 expression following preconditioning of electroacupuncture at Baihui(GV 20).Our results showed that the number of hippocampal CA1 normal neurons was decreased,and degenerated neurons were increased 12 hours to 3 days following cerebral ischemia/reperfusion.The number of hippocampal CA1 apoptotic neurons and caspase-3-positive neurons in rats with cerebral ischemia/reperfusion injury was significantly decreased following acupuncture preconditioning.Acupuncture preconditioning protects aged rats against ischemia/reperfusion injury by regulating caspase-3 protein expression.Mingshan Wang Haipeng Zhou Fei Shi Shilong Ma Yanlin Bi Yuqiu Liu Hong Liu Haiou Li 2011Neural Regeneration Research2011,6,15:12
2Genomic Features and Regulatory Roles of Intermediate-Sized Non-Coding RNAs in Arabidopsis显示文摘在染色体宽的技术的最近的进展与各种各样的尺寸 ineukaryotes 允许几千非编码的 RNA 的鉴定,其中一些进一步被显示了在许多生物进程服务重要函数。然而在 modelplant Arabidopsis,新奇中介大小的 ncRNAs (im-ncRNAs )(50 ~ 300 nt ) 很限制了信息。由与深定序的技术使用修改隔离 strategycombined,我们全球性在 Arabidopsis 识别了 838 im-ncRNAs。多于一半(58%) 是新 ncRNA 种类,主要进化分叉。有趣地,与 5-UTR-derived 小说 im-ncRNAs 注解了 protein-codinggenes 趋于高度被表示。为 intergenic im-ncRNAs,他们比得上在幼苗的 mRNAs 的平均 abundanceswere,而是子集,在开始衰老的展出显著地更低的表示离开。进一步, intergenic im-ncRNAs 被调整由类似基因并且编码蛋白质的基因的到那些的 epigenetic 机制,和 someshowed 发展地调整了表示模式。基因屏蔽显示出的大规模颠倒 down-regulationof 很多 im-ncRNAs 在 vivo 导致了明显的分子的变化或反常发展显型,在植物生长和开发显示 im-ncRNAs 的功能的重要性。一起,我们的结果证明 thatnovel Arabidopsis im-ncRNAs 发展地被调整,功能的部件在 transcriptome.Key 词发现了:Yuqiu Wang Xuncheng Wang Wei Deng Xiuduo Fan Ting-Ting Liu Guangming He Runsheng Chen William Terzaghi Danmeng Zhu Xing Wang Deng 2014Molecular Plant2014,7,3:9
3A new orthogonality relationship for orthotropic thin plate theory and its variational principle显示文摘The thought how dual vectors are constructed in a new orthogonality relationship for theory of elasticity is generalized into orthotropic thin plate bending problems by using the analogy theory between plane elasticity problems and plate bending problems. Dual differential equations are directly obtained by using a mixed variables method. A dual differential matrix to be derived possesses a peculiarity of which principal diagonal sub-matrixes are zero matrixes. Two independently and symmetrically orthogonality sub-relationships are discovered. By using the integral form for elastic bending theory of orthotropic thin plate the orthogonality relationship is demonstrated. By selecting felicitous dual vectors a new orthogonality relationship for theory of elasticity can be generalized into elastic bending theory of orthotropic thin plate. By using the integral form a variational principle which is relative to differential form and a whole function expression are proposed.LUO Jianhui 1 , LONG Yuqiu 2 & LIU Guangdong 1 1. College of Civil Engineering, Hunan University, Changsha 410082, China 2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China 2005Science China(Physics,Mechanics & Astronomy)2005,48,3:8
4Cognitive-behavioural therapy for personal recovery of patients with schizophrenia:A systematic review and meta-analysis显示文摘Background To date, cognitive-behavioural therapy (CBT) trials have primarily focused on clinical recovery;however, personal recovery is actually the fundamental aspect of the recovery process. The aim of this study was to summarise and synthesise the existing evidence regarding the effectiveness of CBT for personal recovery In patients with schizophrenia. Aim This study aimed to determine the effectiveness of CBT for personal recovery in patients with schizophrenia. Methods A systematic search of the literature in PsycINFO, PubMed, Cochrane (CENTRAL), Embase and Web of Science (SCI) was conducted to identify randomised controlled trials reporting the impact of CBT interventions on personal recovery in patients with schizophrenia. The estimated effect sizes of the main study outcomes were calculated to estimate the magnitude of the treatment effects of CBT on personal recovery. We also evaluated the CBT’s effect size at the end-of-treatment and long-term (follow-up) changes in some aspects of personal recovery. Results Twenty-five studies were included in the analysis. The effect of CBT on personal recovery was 2.27 (95% CI 0.10 to 4.45;I^2=0%;p=0.04) at post-treatment and the long-term effect size was 2.62 (95% CI 0.51 to 4.47;I^2=0%;p=0.02). During the post-treatment period, the pooled effect size of CBT was 0.01 (95% CI -0.12 to 0.15;I^2=33.0%;p>0.05) for quality of life (QoL), 0.643 (95% CI 0.056 to 1.130;I^2=30.8%;p<0.01) for psychological health-related QoL,-1.77 (95% CI -3.29 to -0.25;I^2=40%;p=0.02) for hopelessness and 1.85 (95% CI 0.69 to 3.01;I^2=41%;p<0.01) for self-esteem. We also summarised the effects of CBT on QoL (subscale scores not included in the evaluation of the pooled effect size), self-confidence and connectedness, and all results corresponded to positive effects. However, there was insufficient evidence regarding the long-term effects of CBT on personal recovery. Conclusions CBT is an effective therapy with meaningful clinical effect sizes on personal recovery and some aspects of personal recovery of schizophrenia after treatment. However, the effect is relatively immediate and rapidly decreases as time progresses. Therefore, in the future, more studies should focus on the mechanism of CBT for personal recovery and the factors that influence the long-term effects of CBT.Weiliang Wang Yuqiu Zhou Nannan Chai Dongwei Liu 2019General Psychiatry2019,32,4:4
5Effect of river plume on phytoplankton community structure in Zhujiang River estuary显示文摘To examine the phytoplankton assemblages and the effect of diluted waters on them,a research cruise was conducted from July 19 to August 7,2015 in the Zhujiang(Pearl)River estuary in the northern South China Sea(21°N–23.5°N,111°E–117°E).Samples were collected from 65 stations including one for time-series sampling.A total of 212 phytoplankton taxa were identified from 61 genera belonging to 4 phyla.Among them,122 species identified from 42 genera of Bacillariophyta and 83 species from 15 genera of Pyrrophyta.Chain-forming diatoms dominated the phytoplankton community where Pseudonitzschia delicatissima,Guinardia striata,Thalassionema nitzschioides,and P.pungens comprised about 52%of the total abundance.However,higher cell abundances concentrated on both sides of the estuary,because of low salinity and high nutrients brought by diluted water.In addition,Canonical Correspondence Analysis revealed that salinity and dissolved inorganic nitrogen shaped the species composition in the study area.Furthermore,the Jaccard similarity index showed prevailing high similarity in the distribution of species in low-salinity diluted waters,and the Bray-Curtis similarity depicted distinguished grouping for phytoplankton assemblages along the salinity gradient.However,phytoplankton diel vertical cycles showed maximum abundance occurred at 2:00 am,which was mainly contributed by benthic phytoplankton species Pseudo-nitzschia spp.and T.nitzschioides.Qi ZHONG Bing XUE Md Abu NOMAN Yuqiu WEI Haijiao LIU Hongbin LIU Liping ZHENG Hongmei JING Jun SUN 2021Journal of Oceanology and Limnology2021,39,2:2
6Application of the ReNuMa model in the Sha He river watershed: Tools for watershed environmental management显示文摘Jian Sha Min Liu Dong Wang Dennis P. Swaney Yuqiu Wang 2013Journal of Environmental Management2013,,:2
7Adsorption of the anionic dye Congo red from aqueous solution onto natural zeolites modified with N,N-dimethyl dehydroabietylamine oxide显示文摘Liu Shaogang Ding Yuqiu Li Pengfei 2014Chemical Engineering Journal2014,248,15:1
8Region-of-interest micro-focus computed tomography based on an all-optical inverse Compton scattering source显示文摘Micro-focus computed tomography(CT),which allows the hyperfine structure within objects to be reconstructed,is a powerful nondestructive testing tool in many fields.However,current x-ray sources for micro-focus CT are typically limited by their relatively low photon energy and low flux.An all-optical inverse Compton scattering source(AOCS)based on laser wakefield acceleration can generate intense quasi-monoenergetic x/gamma-ray pulses in the kilo-to megaelectronvolt range with micrometer-level source size,and its potential application for micro-focus CT has become very attractive in recent years because of the rapid progress made in laser wakefield acceleration.Reported here is a successful experimental demonstration of high-fidelity micro-focus CT using an AOCS(∼70 keV)by imaging and reconstructing a test object with complex inner structures.A region-of-interest CT method is adopted to utilize the relatively small field of view of the AOCS to ensure high spatial resolution.This demonstration of AOCS-based region-of-interest micro-focus CT is a key step toward its application in the field of hyperfine nondestructive testing.Yue Ma Jianfei Hua Dexiang Liu Yunxiao He Tianliang Zhang Jiucheng Chen Fan Yang Xiaonan Ning Zhongshan Yang Jie Zhang Chih-Hao Pai Yuqiu Gu Wei Lu 2020Matter and Radiation at Extremes2020,5,6:1
9Application of the ReNuMa model in the Sha He river watershed: Tools for watershed environmental management显示文摘Jian Sha Min Liu Dong Wang Dennis P. Swaney Yuqiu Wang 2013Journal of Environmental Management2013,,:1
10Ammonia removal from leaehate solution using natural Chinese clinoptilolite 显示文摘Wang Yuqiu Liu Shijun Xu Ze 2006Journal of Hazardous Materials : B2006,136,:1
11Comparative Study of the Impact of Two Types of Natural Dyes and Synthetic Dyes on the Fabric Comfort Level显示文摘Liu Yushi Wang Yuqiu Yu Song Deng Rouyu Pan Yuan Li Tianxue Li Xiuzhi Chen Yueting wang huowei Tao Jingyu Qien Yangyang 2015决策与信息2015,,24:1
12An efficient approach for the treatment of radioactive waste perfluoropolyether lubricants via a synergistic effect of thermal catalysis and immobilization显示文摘Perfluoropolyether(PFPE)lubricants are a kind of high-molecular polymer with many excellent properties.However,the use of PFPEs in the nuclear industry can lead to partial decomposition and carrying radionuclides,resulting in a large amount of radioactive waste PFPE lubricants annually.Moreover,radioactive waste PFPE lubricants are difficult to be effectively treated due to their high stability,the risk of possible leakage of radionuclides,and hypertoxic fluorine-containing by-products.In this study,without any precedent,a strategy of Mn O_(2)-catalyzed decomposition and Na_(2)CO_(3)-immobilized conversion was proposed for PFPE lubricant decomposition and fluorine immobilization simultaneously based on the Lewis acid-base and oxygen vacancies concept.A high fluorine conversion efficiency of 95.4%was achieved.Meanwhile,the mechanism of decomposition suggested that Mn O_(2)mainly provided Lewis acid sites and attacked the(basic)fluorine or oxygen atoms in PFPE molecules.The decomposition of PFPE chains was proceed down and volatile fluorine-containing gas was released by partial electron transfer,intramolecular disproportionation reaction,and unzipping fashion.Subsequently,gas by-products could be further oxidized and then immobilized into fluoride salts by carbonate solid absorbents.Overall,this study provides a simple,safe,and potentially practical strategy for the harmless conversion of refractory fluorinated organic wastes,especially perfluoropolymers.Xinhang Du Wenhua Tong Xinyu Zhou Jia Luo Yuqiu Liu Yabo Wang Panyu Li Yongkui Zhang 2024Journal of Environmental Sciences2024,,2:0
13Autumn nitrogen enrichment destabilizes ecosystem biomass production in a semiarid grassland显示文摘Nitrogen(N)deposition decreases the temporal stability of ecosystem aboveground biomass production(ecosystem stability).However,little is known about how the responses of ecosystem stability differ based on seasonal N enrichment.By adding N in autumn,winter,or growing season,from October 2014 to May 2020,in a temperate grassland in northern China,we found that only N addition in autumn resulted in a significantly positive correlation between ecosystem mean aboveground net primary productivity(ANPP)and its standard deviation and significantly reduced ecosystem stability.Autumn N-induced reduction in ecosystem stability was associated with the vanished negative effect of community-wide species asynchrony(asynchronous dynamics among populations to environmental perturbations)on the standard deviation of ecosystem ANPP in combination with the emerged positive effect of dominance(Simpson's dominance index that indicates the relative weight of dominant species in a community).Our findings indicate that autumn N addition might overestimate the negative effect of annual atmospheric N deposition on ecosystem stability,suggesting that to better evaluate the influence of N deposition in temperate grasslands,both field experiments and global modeling should consider not only the annual N load but also its seasonal dynamics.Moreover,further studies should pay more attention to the alteration in the ecosystem temporal deviations,which might be more sensitive to human-induced environmental changes.Yuqiu Zhang Zhengru Ren Haining Lu Xu Chen Ruoxuan Liu Yunhai Zhang 2023Fundamental Research2023,3,2:0
14Proteomics of adjacent-to-tumor samples uncovers clinically relevant biological events in hepatocellular carcinoma显示文摘Normal adjacent tissues(NATs)of hepatocellular carcinoma(HCC)differ from healthy liver tissues and their heterogeneity may contain biological information associated with disease occurrence and clinical outcome that has yet to be fully evaluated at the proteomic level.This study provides a detailed description of the heterogeneity of NATs and the differences between NATs and healthy livers and revealed that molecular features of tumor subgroups in HCC were partially reflected in their respective NATs.Proteomic data classified HCC NATs into two subtypes(Subtypes 1 and 2),and Subtype 2 was associated with poor prognosis and high-risk recurrence.The pathway and immune features of these two subtypes were characterized.Proteomic differences between the two NAT subtypes and healthy liver tissues were further investigated using data-independent acquisition mass spectrometry,revealing the early molecular alterations associated with the progression from healthy livers to NATs.This study provides a high-quality resource for HCC researchers and clinicians and may significantly expand the knowledge of tumor NATs to eventually benefit clinical practice.Hongwen Zhu Youpei Lin Dayun Lu Shisheng Wang Yuejia Liu Liangqing Dong Qian Meng Jing Gao Yuqiu Wang Nixue Song Yuying Suo Li Ding Pei Wang Bing Zhang Daming Gao Jia Fan Qiang Gao Hu Zhou 2023National Science Review2023,10,8:0
15温带半干旱草原克隆禾草叶性状对氮沉降铵硝比输入的响应:叶序不可忽略显示文摘叶片是植物光合作用的主要器官。叶片可塑性在很大程度上决定了植物对富氮环境的适应。然而在自然条件和富氮环境中,测定植物叶片性状时需要采集的最佳数量或比例是否一致并不明确;同时大气氮沉降主要组分铵态氮与硝态氮比例变化是否会改变叶片最佳测量数量缺少实验证据支撑。因此本研究依托自2014年在中国北方温带草原开展的铵硝比添加实验(即对照和5:1、1:1和1:5的NH_(4)^(+)-N/NO_(3)^(−)-N比例),于2020年8月(植物群落生物量高峰时期)测量了两个形态相似的优势多年生禾本科物种(即羊草和冰草)在叶序水平的叶面积、叶厚度和叶绿素含量。我们发现在对照处理(自然条件),除羊草叶面积需要测定5片(占单株总叶片数的78.82%),其它性状通过测量两片完全展开叶即可代表整株该叶性状的单叶平均特征。铵硝比添加处理显著改变了叶性状最大值所在叶序,导致需要增加叶片测定数才能代表整株叶片的单叶平均特征。铵硝比添加显著改变了受叶序调控的叶性状间权衡关系,即叶片虽变大却变薄。因此,本研究结果表明,通过测量全部完全展开叶或者提供一个合适的尺度推绎参数方能更好地评估氮沉降效应下植株叶片性状的响应特征。Ruoxuan Liu Jungang Chen Zhengru Ren Xu Chen Haining Lu Yuqiu Zhang Yunhai Zhang 2023Journal of Plant Ecology2023,16,4:0
16Diagnosis of indirectly driven double shell targets with point-projection hard x-ray radiography显示文摘We present an application of short-pulse laser-generated hard x rays for the diagnosis of indirectly driven double shell targets. Coneinserted double shell targets were imploded through an indirect drive approach on the upgraded SG-II laser facility. Then, based on thepoint-projection hard x-ray radiography technique, time-resolved radiography of the double shell targets, including that of their near-peakcompression, were obtained. The backlighter source was created by the interactions of a high-intensity short pulsed laser with a metalmicrowire target. Images of the target near peak compression were obtained with an Au microwire. In addition, radiation hydrodynamicsimulations were performed, and the target evolution obtained agrees well with the experimental results. Using the radiographic images, arealdensities of the targets were evaluated.Chao Tian Minghai Yu Lianqiang Shan Fengjuan Wu Bi Bi Qiangqiang Zhang Yuchi Wu Tiankui Zhang Feng Zhang Dongxiao Liu Weiwu Wang Zongqiang Yuan Siqian Yang Lei Yang Zhigang Deng Jian Teng Weimin Zhou Zongqing Zhao Yuqiu Gu Baohan Zhang 2024Matter and Radiation at Extremes2024,9,2:0
17Derivation of sea surface current field from sequential satellite images of the East China Sea显示文摘A series of NOAA AVHRR data over the East China Sea were collected from the ground station of the Second Institute of Oceanography, Hangzhou, China. Three methods, including a functional analytic method (FAM), a maximum cross correlation (MCC)’method and a correlation relaxation (C - R) method, are applied to derive the sea surface current field from sequential satellite images in the area of the East China Sea. Several preprocessing steps, such as geometric correction, SST determination, image projection, image navigation and grey value normalization as well as land and cloud mask are performed. The results from the three methods reflect the general current system in this area reasonably.Liu Qingge, (Department of Science and Technology, State Oceanic Administration, Beijing 100860, China)Pan Delu, Pan Yuqiu, (Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China)Lutz Bannehr and Guenter Warnecke (Institu 1998Acta Oceanologica Sinica1998,17,4:0
18Commissioning experiment of the high-contrast SILEX-Ⅱ multi-petawatt laser facility显示文摘The results of a commissioning experiment on the SILEX-Ⅱlaser facility(formerly known as CAEP-PW)are reported.SILEX-Ⅱis a complete optical parametric chirped-pulse amplification laser facility.The peak power reached about 1 PWin a 30 fs pulse duration during the experiment.The laser contrast was better than 1010 at 20 ps ahead of the main pulse.In the basic laser foil target interaction,a set of experimental data were collected,including spatially resolved x-ray emission,the image of the coherent transition radiation,the harmonic spectra in the direction of reflection,the energy spectra and beam profile of accelerated protons,hot-electron spectra,and transmitted laser energy fraction and spatial distribution.The experimental results show that the laser intensity reached 531020 W/cm^(2) within a 5.8μm focus(FWHM).Significant laser transmission did not occur when the thickness of theCHfoil was equal to or greater than 50 nm.The maximum energy of the accelerated protons in the target normal direction was roughly unchanged when the target thickness varied between 50 nm and 15μm.The maximum proton energy via the target normal sheath field acceleration mechanism was about 21 MeV.We expect the on-target laser intensity to reach 10^(22) W/cm^(2) in the near future,after optimization of the laser focus and upgrade of the laser power to 3 PW.Wei Hong Shukai He Jian Teng Zhigang Deng Zhimeng Zhang Feng Lu Bo Zhang Bin Zhu Zenghai Dai Bo Cui Yuchi Wu Dongxiao Liu Wei Qi Jinlong Jiao Faqiang Zhang Zuhua Yang Feng Zhang Bi Bi Xiaoming Zeng Kainan Zhou Yanlei Zuo Xiaojun Huang Na Xie Yi Guo Jingqin Su Dan Han Ying Mao Leifeng Cao Weimin Zhou Yuqiu Gu Feng Jing Baohan Zhang Hongbo Cai Minqing He Wudi Zheng Shaoping Zhu Wenjun Ma Dahui Wang Yinren Shou Xueqing Yan Bin Qiao Yi Zhang Congling Zhong Xiaohui Yuan and Wenqing Wei 2021Matter and Radiation at Extremes2021,6,6:0
19Chemical constituents and biological activities of Azadirachta indica A. Juss显示文摘Azadirachta indica A. Juss is a tropical evergreen plant, belonging to the Meliaceae family. The plant is used as folk medicines for the treatment of fever, neuromuscular pains, skin infections, diabetes and heart disease. Previous researches show that the plant possesses several types of chemical constituents and diverse biological activities. The paper concludes chemical constituents, biological activities and pesticide products of A. indica.Xuegui Liu Yuqiu Sun Jun Bian Mengchao Lv Ting Han Danqi Li Pinyi Gao 2019Asian Journal of Traditional Medicines2019,14,1:0
20Living coccolithophores in the western Pacific Ocean with mesoscale eddies显示文摘Living coccolithophores(LCs)are regarded as a group of calcifiers and play important roles in global carbon cycle.This study used microscopic observations of LCs in the western Pacific Ocean to investigate their community structure and biodiversity,especially to test whether local physical traits(mesoscale eddies)could explain their biogeographic distributions during autumn of 2017.The coccolithophore calcite inventory based on carbon-volume transformation was estimated in this study.A total of 28 taxa of coccospheres and 19 types of coccoliths were identified from 161 samples.Gephyrocapsa oceanica was the most predominant species in all the coccolithophore community,followed by Florisphaera profunda,Emiliania huxleyi,Umbilicosphaera sibogae,Gladiolithusflabellatus and Umbellosphaera tenuis.The abundance of coccospheres and coccoliths ranged from 0 to 26.8×10^(3)cells/L and from 0 to 138.5×10^(3)coccoliths/L,averaged at 4.2×10^(3)cells/L and 10.9×10^(3)coccoliths/L,respectively.This study indicated that coccolithophore community in the survey area can be clustered into four groups.Three ecological niches of coccolithophores were characterized by their vertical profiles and multivariate statistical analysis.Coccolithophore abundance and species composition were remarkably different among warm-eddy region,G.oceanica dominated warm-eddy region,while F.profunda dominated warm-eddy and none-eddy region.The average values of estimated particulate inorganic carbon,particulate organic carbon were0.197μg/L and 0.140μg/L,respectively.The current field study widened the dataset of coccolithophores in western Pacific Ocean.Danyue Huang Haijiao Liu Jun Sun Yuqiu Wei Liuyang Li Guicheng Zhang Laxman Pujari 2021Acta Oceanologica Sinica2021,40,6:0
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