检索结果-南通市图书馆

Efficacy and safety of intravenous recombinant tissue plasminogen activator in mild ischaemic stroke:a meta-analysis

引用

Stroke & Vascular Neurology 2018年第1期3卷 22-27页

作者： Shoujiang You Anubhav Saxena Xia Wang WeeYong Tan Qiao Han Yongjun Cao Chun-Feng Liu Department of Neurology and Suzhou Clinical Research center of Neurological Disease The Second Affiliated Hospital of Soochow UniversitySuzhouChina The George Institute for Global Health University of New South WalesSydneyNew South WalesAustralia Department of Neurology Hospital Kuala LumpurKuala LumpurMalaysia Department of Neurology Suzhou Hospital of Traditional Chinese MedicineSuzhouChina Institutes of Neuroscience Soochow UniversitySuzhouChina

The benefits and safety of intravenous recombinant tissue plasminogen activator(IV-tPA)for patients with mild ischaemic stroke(MIS)are still *** objective of this meta-analysis was to evaluate the efficacy and safety of IV-tPA as treatment for patients with *** performed a systematic literature search across MEDLINE,Embase,Central,Global Health and Cumulative Index to Nursing and Allied Health Literature(CINAHL),from inception to 10 November 2016,to identify all related *** possible,data were pooled for meta-analysis with odds ratio(OR)and corresponding 95%confidence interval(CI)using the fixed-effects *** was defined as having National Institutes of Health Stroke Scale score of≤*** included seven studies with a total of 1591 patients based on the prespecified inclusion and exclusion *** meta-analysis indicated a high odds of excellent functional outcome based on the modified Rankin Scale or Oxfordshire Handicap Score 0-1(OR=1.43;95%CI 1.14 to 1.79;P=0.002,I2=35%)in patients treated with IV-tPA compared with those not treated with IV-tPA(74.8%vs 67.6%).There was a high risk of symptomatic intracranial haemorrhage(sICH)with IV-tPA treatment(OR=10.13;95%CI 1.93 to 53.02;P=0.006,I2=0%)(1.9%vs 0.0%)but not mortality(OR=0.78;95%CI 0.43 to 1.43;P=0.43,I2=0%)(2.4%vs 2.9%).Treatment with IV-tPA was associated with better functional outcome but not mortality among patients with MIS,although there was an increased risk of *** trials are warranted to confirm these findings.

关键词： intravenous mortality analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Long-term effects of mowing on plasticity and allometry of Leymus chinensis in a temperate semi-arid grassland,China

引用

Journal of Arid Land 2016年第6期8卷 899-909页

作者： LI Xiliang HOU Xiangyang REN Weibo Taogetao BAOYIN LIU Zhiying Warwick BADGERY LI Yaqiong WU Xinhong XU Huimin National Forage Improvement center Key Laboratory of Grassland Resources and Utilization of Ministry of AgricultureInstitute of Grassland ResearchChinese Academy of Agricultural Sciences Ecology College of Life SciencesInner Mongolia University New South wales Department of Primary Industries Orange Agricultural Institute

Mowing is an important land management practice for natural semi-arid regions. A growing body of empirical evidence shows that different mowing regimes affect the functioning of grassland ecosystems. However, the responses of plant functional traits to long-term mowing and their allometric scaling under long-term mowing are poorly understood. For a better understanding of the effects of mowing on grassland ecosystems, we analyzed the allometric traits of leaves and stems of Leymus chinensis （Trin.） Tzvel., a dominant grass species in eastern Eurasian temperate grassland, at different mowing intensities （no clipping, clipping once every two years, once a year and twice a year）. Experiments were conducted on plots established over a decade ago in a typical steppe of Xilinhot, Inner Mongolia, China. Results showed that most of the functional traits of L. chinensis decreased with the increased mowing intensity. The responses of leaves and stems to long-term mowing were asymmetric, in which leaf traits were more stable than stem traits. Also significant allometric relationships were found among most of the plant functional traits under the four mowing treatments. Sensitive traits of L. chinensis （e.g. leaf length and stem length） were primary indicators associated with aboveground biomass decline under high mowing intensity. In conclusion, the allometric growth of different functional traits of L. chinensis varies with different long-term mowing practices, which is likely to be a strategy used by the plant to adapt to the mowing disturbances.

关键词： Leymus chinensis allometry plant functional traits mowing semi-arid grassland Inner Mongolia

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Mesoproterozoic to early Neoproterozoic passive margin Lajeado Group and Apiaí Gabbro, Southeastern Brazil

引用

Geoscience Frontiers 2016年第4期7卷 683-694页

作者： G.A.C.Campanha M.S.Basei F.M.Faleiros A.P.Nutman Instituto de Geociencias da Universidade de Sao Paulo Brazil School of Earth and Environmental Sciences University of Wollongong Wollongong New South Wales 2500 Australia Beijing SHRIMP center Chinese Academy of Geological Sciences 26 Baiwzhuang Road Beijing 100037 China

The Lajeado Group in the Ribeira Belt, southeastern Brazil, corresponds to an open-sea carbonate platform, comprised of seven overlapping siliciclastic and carbonatic formations, intruded in its upper portion by the Apiai Gabbro. These rocks have a Neoproterozoic tectonometamorphic overprint related to arc magmatism and the Brasiliano collisional orogeny. Geochronological constraints are given by new U- Pb SHRIMP and LA-ICP-MS data for Lajeado Group detrital zircons and for magmatic zircons from the Apial Gabbro. The youngest detrital zircons in the Lajeado Group are 1400-1200 Ma, and constrain its maximum age of deposition to be 〈1200 Ma, whereas the 877 ~ 8 Ma age for magmatic zircons in the Apiai Gabbro give the minimum age. Detritus source areas are mainly Paleoproterozoic （2200-1800 Ma） with some Archean and Mesoproterozoic contribution （1500-1200 Ma）, with distal or tectonic stable cratonic character. The Lajeado Group should be a Stenian-Tonian carbonate platform passive margin of a continent at this time, namely the Columbia/Nuna or the Rodinia. The Apial Gabbro displays similar age to other intrusive basic rocks in the Lajeado and Itaiacoca groups and represents tholeiitic MORB-like magmatism that we relate to the initial break-up of a Mesoproterozoic continent and the formation of the Brasiliano oceans.

关键词： Mesoproterozoic continent Passive margin Carbonate platform Brasiliano oceans Zircon U-Pb dating

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CuP_(2) as high-capacity and long-cycle-life anode for potassium-ion batteries

引用

Journal of Energy Chemistry 2021年第12期30卷 246-252,I0005页

作者： Lin Li Zhe Hu Yong Lu Shuo Zhao Qiu Zhang Qiannan Liu Zhenhua Yan Shu-Lei Chou Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Engineering Research Center of High-efficiency Energy Storage(Ministry of Education)Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China Institute for Superconducting and Electronic Material Australian Institute for Innovative Materials.University of WollongongInnovation CampusSquires WayNorth WollongongNew South Wales 2522Australia

Metal phosphides have shown great potential for potassium-ion batteries because of their high theoretical specific ***,most of the metal phosphide anodes are plagued by rapid capacity decay(caused by the large volume changes during the discharge/charge process),which would restrict their further practical ***,a chemically bonded CuP_(2)/C composite was prepared by a facile high-energy ball milling method.A potassium bis(trifluoromethanesulfonyl)imide(KFSI)-based electrolyte was adopted instead of a conventional KPF6-based electrolyte for the CuP_(2)/C composite *** from the synergistic effects of the formation of strong P-O-C chemical bonds and the KFSIbased electrolyte,the CuP_(2)/C composite anode exhibited high reversible capacity(451.4 mAh g^(-1) at50 mA g^(-1)),excellent rate performance(123.5 mAh g^(-1) at 1000 mA g^(-1)),and superior cycling stability(300 mAh g^(-1) after 100 cycles).This work paves the way for the development of high-performance CuP_(2) anode for potassium-ion batteries.

关键词： Potassium-ion batteries CuP_(2)/C composite Metal phosphides P-O-C chemical bond KFSI-based electrolyte

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of baffles on performance of fluid catalytic cracking riser

引用

Particuology 2018年第3期16卷 18-30页

作者： Milinkumar T. Shah Vishnu K. Pareek Geoffrey M. Evans Ranjeet P. Utikar Department of Chemical Engineering Curtin University Western Australia Australia Department of Chemical Engineering University of Newcastle New South Wales Australia

Increasing demand of automobile fuel and a need to process heavier crude oil makes it imperative to find improvements to the design of existing fluid catalytic cracking （FCC） units. Several modifications to the design of the riser section of FCC units have been suggested in previous studies including： improved feed nozzle designs, multiple nozzle configurations, internal baffles, and novel two-stage-riser systems. In this study, we investigate the effects of baffles on the performance of FCC risers using computational fluid dynamics simulations. In this study, predictions from a basis model （without baffles） are compared with those from four different configurations including：（i） 5-cm baffles at 5-m spacing, （ii） 7.5-cm baffles at 5- m spacing, （iii） 10-cm baffles with 5-m spacing, （iv） lO-cm baffles at 2.5-m spacing, and （v） lO-cm baffles at 1-m spacing. The baffles force the catalyst away from wails toward the center of the riser, enhancing the radial dispersion of the catalyst and the heat transfer inside the riser. The use of longer baffles and smaller spacings further increases the dispersion, yielding more homogeneous radial profiles. The changes in the radial dispersion result in variations in the conversion, yields, and pressure drops. The baffles increase conversion of vacuum gas oil （VGO） and the yield of gasoline. However, the simulations showed that longer baffles and a larger number of baffles did not always give a higher yield or higher conversion. Among the simulated configurations, the 5-cm baffles at 5-m spacing gave the highest conversion of VGO, whereas the 10-cm baffles at 1 -m spacing resulted in the highest yield of the gasoline. Thus, rational optimization of baffle configurations is required to achieve optimal performance.

关键词： Fluid catalytic cracking Riser Baffles Computational fluid dynamics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Calibrating SECCM measurements by means of a nanoelectrode *** intrinsic oxygen reduction activity of PtNi catalyst nanoparticles

引用

Nano Research 2022年第2期15卷 1564-1569页

作者： Emmanuel Batsa Tetteh Tobias Loffler Tsvetan Tarnev Thomas Quast Patrick Wilde Harshitha Barike Aiyappa Simon Schumacher Corina Andronescu Richard D.Tilley Xingxing Chen Wolfgang Schuhmann Analytical Chemistry-center for Electrochemical Sciences Faculty of Chemistry and BiochemistryRuhr University BochumUniversitatsstr.150D-44780 BochumGermany Chemical Technology III Faculty of Chemistry and CENIDE-Center for NanointegrationUniversity Duisburg EssenCarl Benz Str.199D-47057 DuisburgGermany School of Chemistry and Australian Centre for NanoMedicine University of New South WalesSydney 2052Australia Research Group of Functional Materials for El

Scanning electrochemical cell microscopy(SECCM)is increasingly applied to determine the intrinsic catalytic activity of single electrocatalyst *** is especially feasible if the catalyst nanoparticles are large enough that they can be found and counted in post-SECCM scanning electron microscopy ***,this becomes impossible for very small nanoparticles and hence,a catalytic current measured in one landing zone of the SECCM droplet cannot be correlated to the exact number of catalyst *** show,that by introducing a ruler method employing a carbon nanoelectrode decorated with a countable number of the same catalyst particles from which the catalytic activity can be determined,the activity determined using SECCM from many spots can be converted in the intrinsic catalytic activity of a certain number of catalyst nanoparticles.

关键词： intrinsic electrocatalytic activity nanoelectrochemistry scanning electrochemical cell microscopy(SECCM) PtNi nanoparticles single entity electrochemistry alkaline medium

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Solvent-free mechanochemical synthesis of organic proton conducting salts incorporating imidazole and dicarboxylic acids

引用

Chinese Journal of Structural Chemistry 2023年第5期42卷 22-26页

作者： Yating Zhou Anucha Koedtruad Zhenhong Tan Dong Zhang Lingxiang Bao Yajun Yue Jianyuan Wu Juping Xu Yuanguang Xia Wen Yin Maxim Avdeev Wang Hay Kan Takashi Kamiyama Ping Miao Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China Spallation Neutron Source Science center Dongguan523803China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing100049China Australian Nuclear Science and Technology Organisation Lucas HeightsNew South Wales2234Australia School of Chemistry The University of SydneySydneyNew South Wales2006Australia

Solventless mechanochemical synthesis by manual grinding was applied to grow organic proton conducting salts,imidazole-succinic acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(2)COOH)and imidazole-glutaric acid(C_(3)H_(4)N_(2)-HOOC(CH_(2))_(3)COOH).This synthesis method induces crystallization and provides the phase-pure *** compounds exhibit different electric conducting behavior and activation energies Ea compared with the reported single crystals obtained from the solution *** difference in conducting property can be related to intrinsic defects and structural disorder introduced by mechanochemical grinding,indicating that the mechanochemical method bears strong capability for tuning ***,complete deuteration of the organic salts is achieved by the *** mechanochemical synthesis of organic salts also holds high potential for the actual industrialized large-scale production.

关键词： Organic salts Proton conducting Mechanochemistry Powder neutron diffraction Solventless synthesis Deuteration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Arranging cation mixing and charge compensation of TiNb_(2)O_(7) with W^(6+) doping for high lithium storage performance

引用

Rare Metals 2023年第10期42卷 3364-3377页

作者： Pei Cui Guo-Tai Li Pan-Pan Zhang Tao Wan Mei-Qing Li Xue-Li Chen Yu Zhou Rui-Qiang Guo Ming-Ru Su Yun-Jian Liu De-Wei Chu School of Material Science and Engineering Jiangsu UniversityZhenjiang212013China Thermal Science Research center Shandong Institute of Advanced TechnologyJinan250103China Institute of Thermal Science and Technology Shandong UniversityJinan250061China School of Materials Science and Engineering The University of New South WalesSydneyNSW2502Australia

TiNb_(2)O_(7) is an advanced anode material for high-energy density lithium-ion batteries(LIBs) due to its considerable specific capacity and satisfactory ***,its rate capability is limited by its poor ionic conductivity and electronic *** solve this problem,TiNb_(2)O_(7) with W^(6+) doping was synthesized by a convenient solid-state *** doping of W^(6+) will lead to arranging cation mixing and charge *** cation rearrangement creates a new Li-conductive environment for lithiation,resulting in a low-energy barrier and the fast Li^(+)storage/*** results show that the Li^(+)diffusion coefficient of W_(0.06)Ti_(0.91)Nb_(2)O_(7) is increased by 9.96 times greater than that of TiNb_(2)O_(7).Besides,as the calculation proves,due to the partial reduction of the Nb^(5+)and Ti^(4+) caused by charge compensation,W^(6+)doping results in low charge transfer resistance and excellent electronic ***,W^(6+) doping accounts for a high pseudocapacitive *** the scan rate of 1 mV·s^(-1),the pseudocapacitive contribution for TiNb_(2)O_(7) is 78%,while that for W_(0.06)Ti_(0.91)Nb_(2)O_(7) increases to 83%.The reversible specific capacity of W_(0.06)Ti_(0.91)Nb_(2)O_(7) after 600 cycles is maintained at 148.90mAh·g^(-1) with a loss of only 16.37% at ***,it delivers a commendable capacity of 161.99 mAh·g^(-1) *** at 30.0C,it still retains a satisfactory capacity of 147.22 mAh·g^(-1),much higher than TiNb_(2)O_(7)(97.49mAh·g^(-1)).Our present study provides ideas for the development of electrode materials for lithium-ion batteries.

关键词： Lithium-ion batteries(LIBs) Titanium niobium oxide W^(6+)doping High-rate capability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Comparative FISH and molecular identification of new stripe rust resistant wheat-Thinopyrum intermedium ssp. trichophorum introgression lines

引用

The Crop Journal 2019年第6期7卷 819-829页

作者： Jianbo Li Qiheng Chen Peng Zhang Tao Lang Sami Hoxha Guangrong Li Zujun Yang School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 610054SichuanChina center for Informational Biology University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina Plant Breeding Institute The University of SydneyCobbittyNew South Wales 2570Australia

Thinopyrum intermedium(2 n = 6 x = 42, JJJ^sJ^sStSt) has been hybridized extensively with common wheat and has proven to be a valuable germplasm source for improving disease resistance, quality attributes, and yield potential in wheat. We characterized new disease resistant wheat-Th. intermedium derivatives A1082 and A5-5 using sequential multi-color fluorescence in situ hybridization(mc-FISH), genomic in situ hybridization(GISH), PCRbased landmark unique gene(PLUG) and intron targeting(IT) markers. A1082 was identified as a wheat-Th. intermedium 3J disomic addition line, and A5-5 was a T4BS·5J^sL homozygous Robertsonian translocation line. Seventy-one and 106 pairs of primers amplified ***-specific bands allowing chromosomes 3J and 5J^s to be tracked, respectively. A new oligonucleotide probe, Oligo-6 H-2-100, was developed for FISH labeling of the subterminal region of the long arm of chromosome 5J^s. Both lines were highly resistant to stripe rust pathogen races prevalent in Chinese field screening nurseries. A5-5 also displayed a significant increase in tiller number compared to its wheat parent. The new lines can be exploited as useful germplasms for wheat improvement.

关键词： Disease resistance FISH GISH Stripe rust Triticum aestivum

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Boron nitride for enhanced oxidative dehydrogenation of ethylbenzene

引用

Journal of Energy Chemistry 2021年第6期30卷 477-484,I0012页

作者： Rui Han Jiangyong Diao Sonu Kumar Andrey Lyalin Tetsuya Taketsugu Gilberto Casillas Christopher Richardson Feng Liu Chang Won Yoon Hongyang Liu Xudong Sun Zhenguo Huang Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) Northeastern UniversityShenyang 110819LiaoningChina School of Civil and Environmental Engineering University of Technology SydneyUltimoNew South Wales 2007Australia Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina Institute for Chemical Reaction Design and Discovery(WPI-ICReDD) Hokkaido UniversitySapporo 001-0021Japan center for Green Research on Energy and Environmental Materials National Institute for Materials Science(NIMS)Tsukuba 305-0044Japan Department of Chemistry Faculty of ScienceHokkaido UniversitySapporo 060-0810Japan Electron Microscopy Centre University of WollongongNew South Wales 2500Australia Molecular Horizons and School of Chemistry and Molecular Bioscience Faculty of ScienceMedicine and HealthUniversity of WollongongNew South Wales 2522Australia center for Hydrogen and Fuel Cell Research Korea Institute of Science and TechnologySeoul 02792Republic of Korea

It is demonstrated experimentally and confirmed theoretically that highly defective boron nitride showed outstanding performance for oxidative dehydrogenation of *** catalyst is derived from carbon-doped hexagonal boron nitride nanosheets synthesized via a two-step reaction when participating the oxidative dehydrogenation *** first step yields a polymeric precursor with the atomic positions of B,C,N relatively constrained,which is conducive for the formation of carbon atomic clusters uniformly dispersed throughout the BN *** the oxidative dehydrogenation of ethylbenzene to styrene,the nanoscale carbon clusters are removed and highly defective boron nitride(D-BN)is obtained,exposing boron-rich zigzag edges of BN that act as the catalytic *** catalytic performance of D-BN is therefore remarkably better than un-doped *** results indicate that dispersed C-doping in h-BN is highly effective in terms of defect formation and resultant enhanced activity in oxidative dehydrogenation reactions.

关键词： Boron nitride Dehydrogenation Ethylbenzene Carbon-doping Heterogeneous catalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：