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A meta-analysis of randomized trials on clinical outcomes of paclitaxel-eluting stents versus bare-metal stents in ST-segment elevation myocardial infarction patients

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第10期11卷 754-761页

作者： Xiao-hong PAN Ying-xue chen mei-xiang XIANG Geng XU Jian-an WANG Department of Cardiology the Seeond Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310009 China

A meta-analysis was performed to address the efficacy and safety of paclitaxel-eluting stent(PES) in ST-segment elevation myocardial infarction(STEMI) patients.A systematic literature search was conducted to identify all randomized clinical trials in mortality,recurrent myocardial infarction(rMI),repeat revascularization(RR),and stent thrombosis(ST).A total of 4190 STEMI patients were enrolled in six randomized trials comparing PES with bare-metal stent(BMS).The pooled repeat revascularization rate was 5.7% in PES group,significantly lower than 10.0% in BMS group with an odds ratio(OR) of 0.56,95% confidence interval(CI) [0.44,0.72](P<0.00001).No significant difference was found between PES and BMS groups in mortality at one year after the indexing procedure(3.9% vs.5.1%,OR 0.88,95% CI [0.63,1.21],P=0.42).Similarly,rMI rate did not differ significantly between the two groups(3.4% vs.4.1%,OR 0.80,95% CI [0.56,1.13],P=0.21).PES was also associated with the comparable pooled rate of definite stent thrombosis with BMS(2.3% vs.2.4%,OR 0.81,95% CI [0.52,1.26],P=0.35).The results show that PES improved clinical outcomes in STEMI patients with a decreased need for repeat revascularization and no concerns for safety.

关键词： Myocardial infarction Paclitaxel-eluting stent Bare-metal stent Meta-analysis

Mechanism of Slag Composition Change During Electroslag Remelting Process

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Journal of Iron and Steel Research International 2011年第10期18卷 24-28,53页

作者： ZHAO Jun-xue chen Yan-mei LI Xiao-ming CUI Ya-ru LU Xiao-tao School of Metallurgical Engineering Xi＇an University of Architecture and Technology Xi＇an 710055 Shannxi China

The mass loss rate of CaF2-CaO-Al2O3-SiO2-MgO slag system originated from ANF-6 was studied with CaF2, CaO, Al2O3, SiO2 or MgO content as variables. The method of quadratic regression orthogonal design was used for the design and analysis of the experiment. The experimental results indicated that mass loss rate of slag can be increased by 6% with CaF2 changing from 50%to 65%. Mass loss increases with SiO2 , Al2O3 and MgO adding and decreases with CaO content increasing. Because of the reaction between oxide and fluoride in the slag pool, apparent mass loss of CaF2-Al2O3 CaO-SiO2 MgO slag system appears at melting point. This will cause obvious composition change of electroslag. In addition, the segregation occurs in the slag skin forming process. This is another reason causing the composition change of electroslag.

关键词： electroslag DSC-TG analysis quadratic regression orthogonal design composition change

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高长径比高纯纳米银线的制备

中国有色金属学报 2017年第11期27卷 2322-2328页

作者：王昀陈雪梅华东理工大学超细粉末国家工程研究中心上海200237

将多元醇还原法和晶种法相结合,以硝酸银为银源、乙二醇为还原剂和溶剂、聚乙烯吡咯烷酮为生长导向剂,通过添加氯化铜作为晶型诱导剂引入晶种来制备高长径比高纯纳米银线。探讨晶型诱导剂浓度、PVP与AgNO_3的摩尔比、晶种生长时间以及... 详细信息

将多元醇还原法和晶种法相结合,以硝酸银为银源、乙二醇为还原剂和溶剂、聚乙烯吡咯烷酮为生长导向剂,通过添加氯化铜作为晶型诱导剂引入晶种来制备高长径比高纯纳米银线。探讨晶型诱导剂浓度、PVP与AgNO_3的摩尔比、晶种生长时间以及体系搅拌速度等反应条件对银线形貌的影响。结果表明:在170℃下,当CuCl_2浓度为0.15mmol/L、PVP与AgNO_3的摩尔比为6:1、晶种生长时间控制为10min、搅拌速度为400r/min时,可制取长度超过50μm、直径介于80~100nm、长径比超过500的纳米银线。

关键词：纳米银线醇还原法长径比

Treatment of a dyeing wastewater from a woolen mill using an A/O membrane bio-reactor

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Journal of Environmental Sciences 2000年第3期12卷 344-348页

An anaerobic/oxic membrane bioreactor (A/O MBR) was used for treatment of dyeing wastewater from a woolen mill. COD and color of the wastewater were 54—473 mg/L and 40—400 dilution time (DT) respectively. The ratio of BOD 5/COD was less than 0.13. By the A/O MBR process, the average removal of COD, BOD 5, color and turbidity was 82%, 96%, 71% and 99%, respectively. The average COD, BOD 5, color and turbidity of effluent was 37 mg/L, 0.8 mg/L, 40 DT and 0.44 NUT respectively. The effluent COD met the local standard of reuse water in Beijing, China. The average COD volume load of the anaerobic biological tank was 0.0483 kgCOD/(m 3·d) and that of the aeration tank of the MBR was 0.3589 kgCOD/(m 3·d). The sludge load of the MBR was 0.19 kgCOD/(kg·MLSS·d) on average and the maximum of that was 0.4 kgCOD/(kg·MLSS·d). The flux of the A/O membrane bioreactor could be remained at larger than 50 L/(h·m 2·0.1MPa). The results indicated that A/O membrane bioreactor has technical feasibility for treatment of woolen mill wastewater.

关键词： membrane bioreactor dyeing wastewater biological process membrane technology activated sludge

Decreased expression of human aquaporin-5 correlated with mucus overproduction in airways of chronic obstructive pulmonary disease

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Acta Pharmacologica Sinica 2007年第8期28卷 1166-1174页

作者： Ke WANG Yu-lin FENG Fu-qiang WEN~2 xue-rong chen xue-mei OU Dan XU Jie YANG Zhi-ping DENG Division of Pulmonary Diseases,State Key Laboratory of Biotherapy of China,and Department of Respiratory Medicine,West China Hospital of Sichuan University,Sichuan 610041,China Division of Pulmonary Diseases and Department of Respiratory Medicine State Key Laboratory of Biotherapy of China West China Hospital of Sichuan University Sichuan China

Aim:To investigate the relationship between aquaporin-5(AQP5)expression andmucus overproduction in the airways of Chinese patients with chronic obstruc-tive pulmonary disease(COPD)and the correlation with pulmonary ***:Bronchial tissues were obtained from fiberoptic bronchoscopyand bronchial biopsy in West China Hospital from April to July ***-fivepatients were diagnosed as COPD patients,and another 20 were diagnosed as thecontrol *** expressions ofAQP5,mucin 5AC(MUC5AC),and mucin inbronchial tissues were detected by semiquantitative RT-PCR,in situ hybridization,and immunohistochemical and alcian blue-periodic acid-Schiff(AB-PAS)staining,***:Compared with the control group,an attenuated expres-sion of AQP5was detected throughout the bronchial tissues from patients withCOPD(P0.05).Simultaneously,increased staining of MUC5AC and mucus in submucosal glandswere noted(P0.05).The decreased expression of AQP5mRNA was correlatedwith forced expiratory volume in 1 s(FEV1)/forced vital capacity(FVC)(r=0.60,P<0.01),FEV1% predicted value(r=0.60,P<0.01),maximal expiratory flow in 50%vital capacity(V50)% predicted value(r=0.55,P<0.01),and maximal expiratory flowin 25% vital capacity(V25)% predicted value(r=0.45,P<0.01).The decreasedexpression was negatively correlated with MUC5AC mRNA of the epitheliumairways(r=-0.45,P<0.01)and the AB-PAS-stained area of submucosal glands(r=-0.61,P<0.01).The upregulation of MUC5AC mRNA correlated with the posi-tively AB-PAS-stained area of submucosal glands and correlated negativelywith FEV1/FVC(r=-0.53;P<0.01),FEV1% predicted value(r=-0.53;P<0.01),V50%predicted value(r=-0.48;P<0.01),and V25% predicted value(r=-0.4

关键词： aquaporin-5 mucin 5AC mucin mucus overproduction chronic obstructive pulmonary disease

Preparation of Low Ratio Magnesium Ccement by Acid Leaching Treatment of Boron Mud

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 120-129页

作者： YANG mei ZHANG Mingzhe chen Hao School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China School of Physical Science and Technology Shenyang Normal UniversityShenyang 110168China

The effects of liquid-solid ratio and reaction time on the leaching rate of magnesium at room temperature were investigated,as well as the effects of the molar ratio of MgO/MgCl_(2),the amount of water added,and the amount of acid-impregnated slag dosed on the compressive strength and water resistance of *** results showed that the magnesium element in the boron mud could be maximally leached under the conditions of 1:1 concentration of hydrochloric acid at room temperature,liquid-solid ratio of 2.5 mL·g^(-1),and reaction time of 5 h,and the main products were amorphous SiO_(2) as well as a small amount of magnesium olivine which had not been completely *** LR-MOC prepared using the acid-soaked mixture could reach a softening coefficient of 0.85 for 28 d of water immersion when the molar ratio of MgO/MgCl_(2) was 2.2,the amount of water added was 0 g,and the acid-soaked slag dosing was 40 wt%,which also led to an appreciable late-strength,with an increase of 19.4%in compressive strength at 28 d compared to that at 7 *** previous studies,LR-MOC prepared in this way has a final strength phase that is not the more easily hydrolysed 3-phase but the lath-like *** this phenomenon,we analyzed the mechanism and found that,during the acid leaching process,a part of amorphous SiO_(2) dissolved in the acid leaching solution formed a silica sol,in which Mg^(2+)played a bridging role to make the silica sol more *** the addition and hydrolysis of MgO,the silica sol gel coagulation slows down,providing a capping layer to inhibit the hydrolysis of the 5-phase crystals and providing some strength after *** amorphous SiO_(2) in the other part of the acid-impregnated slag generated M-S-H gel with Mg^(2+)and OH-,which synergised with the dense structure composed of interlocking crystals to improve the water resistance of LR-MOC.

关键词： boron mud magnesium chloride-oxygen cement acid immersion water resistance silica sol

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日本养老保障体系改革方案的分析与借鉴

外国经济与管理 2000年第5期22卷 25-29页

作者：陈雪玫上海海运学院上海200122

养老保险体系的制定是实现社会稳定和人民安居乐业的大事。本文对日本现行的养老保险制度 (确定支付型方案 )及存在的问题进行了分析 ,并对其改革方案 (确定缴纳型方案 )的特点和优越性进行了讨论。这些问题对于建立符合我国国情并且科学。

关键词：养老保障体系公有养老金制度日本保险费

Targeting cholesterol trafficking to mitigate axonal degeneration in hereditary spastic paraplegia

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Neural Regeneration Research 2025年第5期20卷 1397-1398页

作者： Zhenyu chen xue-Jun Li Department of Biomedical Sciences University of Illinois College of Medicine RockfordRockfordILUSA Department of Bioengineering University of Illinois at ChicagoChicagoILUSA

Axonal degeneration underlies many debilitating diseases including hereditary spastic paraplegia(HSP),a genetically and clinically diverse group of disorders characterized by spasticity and weakness of the lower *** is one significant cause of chronic neurodisability due to the lack of effective treatments and a wide range of onset ages from early childhood to 70 years.

关键词： degeneration diseases hereditary

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论口译工作语言能力

上海翻译 2020年第1期 32-37页

作者：陈雪梅安徽师范大学外国语学院安徽芜湖241002

研究从专业技能研究和心理语言学的双语记忆表征视域,探讨口译工作语言的领域特异性,重点剖析口译工作语言能力的构成、特征、心理运行机制及提升路径。口译工作语言能力即口译双语能力,在单语交际下的母语和外语能力之上衍生和发展,并... 详细信息

研究从专业技能研究和心理语言学的双语记忆表征视域,探讨口译工作语言的领域特异性,重点剖析口译工作语言能力的构成、特征、心理运行机制及提升路径。口译工作语言能力即口译双语能力,在单语交际下的母语和外语能力之上衍生和发展,并在口译实践或专业培训中获得领域特异性,包括专业领域语言使用能力、快速语码转换能力和控制"中际语"不稳定性能力。口译工作语言能力的形成过程即是双语记忆表征和语码转换机制的重构过程;要实现母语和外语能力向口译工作语言能力的转变,重在通过优化A、B语词汇层连接表征、加强抑制形式干扰的能力和提升语码间的快速切换能力。本研究有助于更好揭示口译特异性及其能力构成,为口译教学提供针对性参考。

关键词：口译工作语言双语能力双语记忆表征语码转换能力