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Chinese Medical Journal 2013年第23期126卷 4504-4509页

作者： CHENG Vincent Chi-Chung CHAN Jasper Fuk-Woo WONG Sally Cheuk-Ying CHEN Jonathan hon-Kwan TAI Josepha Wai-Ming YAN Mei-Kum KWAN Grace See-Wai tse Herman TO Kelvin Kai-Wang ho Pak-Leung YUEN Kwok-Yung Department of Microbiology Queen Mary Hospital Hong KongChina Infection Control Team Queen Mary Hospital Hong Kong China

Background Identification of hospitalized carbapenem-resistant Enterobacteriaceae （CRE）-positive patient is important in preventing nosocomial *** objective of this study was to illustrate the implementation of proactive infection control measures in preventing nosocomial transmission of CRE in a healthcare region of over 3200 beds in hong Kong between October 1,2010 and December 31,*** The program included active surveillance culture in patients with history of medical tourism with hospitalization and surgical operation outside hong Kong within 12 months before admission,and ＂added test＂ as an opportunistic CRE screening in all fecal specimens submitted to the *** investigation and contact tracing were conducted for CRE-positive *** quantitative culture was performed on CRE-positive patients and the duration of fecal carriage of CRE was *** During the study period,a total of 6533 patients were screened for CRE,of which 76 patients were positive （10 from active surveillance culture,65 from ＂added test＂,and 1 secondary case from contact tracing of 223 patients with no nosocomial outbreak）,resulting in an overall rate of CRE fecal carriage of 1.2％.The median time of fecal carriage of CRE was 43 days （range,13-119 days）.Beta-lactam-beta-lactamase-inhibitors,cephalosporins,and fluoroquinolones were associated significantly with high fecal bacterial load when used 90 days before CRE detection,while use of cephalosporins,carbapenems,and fiuoroquinolones after CRE detection are significantly associated with longer duration of *** duration of fecal carriage of CRE also correlates significantly with the initial fecal bacterial load （Pearson correlation：0.53; P=0.02）.Conclusion Proactive infection control measures by enhanced surveillance program identify CRE-positive patients and data obtained are useful for the planning of and resource allocation for CRE control.

关键词： surveillance nosocomial transmission carbapenem-resistant Enterobacteriaceae

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Raman Spectra of Crystalline Iron Perchlorate Hexahydrate

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Raman Spectra of Crystalline Iron Perchlorate Hexahydrate

Outcome of 1355 consecutive transabdominal chorionic villus samplings in 1351 patients

第十四届全国光散射学术会议

作者： D．P．Chiang W．S．tse Division of Natural Science Ming Hsin University of Science and TechnologyTaiwan Division of Natural Science Ming Hsin University of Science and TechnologyTaiwan Institute of PhysicsAcademia SinicaTaipeiTaiwan

Raman studies of crystalline iron perchlorate hexahydrate(Fe(ClO).6ho)in region of lattice and anion internal modes were observed in the temperature range 80 to 385 *** temperature dependent Raman results are consiste...

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Chinese Medical Journal 2005年第20期118卷 1675-1681页

作者： LAU Tze Kin LEUNG Tak Yeung FUNG Tak Yuen CHAN Lin Wai Daljit S SAhoTA LEUNG tse Ngong Fetal Medicine Unit Department of Obstetrics and Gynaecology Prince of Wales Ho spitalChinese University of Hong KongShatinHong Kong SARChina

Background The true risk of choronic villus sampling(CVS)is poorly *** objective of this study was to review the clinical outcome of transabdominal CVS performed in a university teaching unit,with an emphasis on the complication *** A comprehensive audit database was maintained for 1351 pregnant women,including 17 sets ot twin pregnancies,who had a *** and outcome of all CVSs made in the unit between May 1996 and May 2004 were *** CVSs were performed by one of 5 operators using the identical *** All procedures were performed transabdominally.A total of 1355 CVSs were performed because there were 4 dichorionic twin pregnancies which required 2 *** mean gestation at CVS was(11.8+0.7)weeks,and 97.3%of the procedures were performed between 11 and 13 completed *** majority(96.2%)required only 1 puncture to achieve correct needle *** procedure failed to obtain an adequate sample in 4 subjects(0.30%).A total of 1351 chromosomal studies were requested and there was 1 case(0.07%)of culture *** results of chromosomal studies were available within 14 days in 36.7%of the cases and within 21 days in 94.0%.Overall,77 chromosomal abnormalities(5.7%)and 5 cases of thalassemia major were *** outcome was unknown in only 13 singleton subjects(0.96%).In the remaining 1355 fetuses,there were 76 pregnancy terminations(5.56%),10 fetal losses with obvious obstetric causes(0.73%),and 21 potentially procedure-related fetal losses(1.54%).In the last group,the majority had one or more co-existing obstetric *** background fetal loss rate for pregnancies at similar gestational age in the unit was about 0.8%.Therefore,the procedure-related fetal loss rate was estimated to be at the maximum of 0.74%.Conclusions In experienced hands,first trimester transabdominal CVS is an accurate and safe invasive prenatal diagnostic *** should be one of the treatment options available to pregn

关键词： chorionic villus sampling postoperative complication pregnancy outcome

以三苯三戊并烯或窗茚满为核心的非平面纳米石墨烯

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有机化学 2020年第10期40卷 3017-3025页

作者：吴振辉王伟丞叶皓宏刘永华孙晓庆谢浩荣何丽思张以诺 Dietmar Kuck 周克勋香港中文大学化学系中国香港比勒费尔德大学化学系及分子材料中心(CM2) 德国比勒费尔德33615

总结了我们近年合成的以三苯三戊并烯或窗茚满为骨架的非平面纳米石墨烯之研究成果.巫师帽形或鞍形的纳米石墨烯可由非经典的Scholl环庚三烯环化或19元环大环化反应制备.这些反应成功的关键是在这些分子的湾区区域引入恰当的富电子芳香... 详细信息

总结了我们近年合成的以三苯三戊并烯或窗茚满为骨架的非平面纳米石墨烯之研究成果.巫师帽形或鞍形的纳米石墨烯可由非经典的Scholl环庚三烯环化或19元环大环化反应制备.这些反应成功的关键是在这些分子的湾区区域引入恰当的富电子芳香官能团,通过X射线晶体学,一些纳米石墨烯的三维结构可以得到确定.此外,这些富含碳的π-共轭分子还显示出有趣的光物理、自缔合和主-客体络合的特性.

关键词：非平面芳香族纳米石墨烯三苯三戊并烯窗茚满

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Pavement markings:identification of relevant covariates and controllable factors of retroreflectivity performance as a road safety measureáã

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Transportation Safety and Environment 2021年第2期3卷 123-131页

作者： Linda Lee ho J́ulio Silvio de Souza Bueno Filho Walquiria Yumiko Fujii Cludia A.S.Machado Liedi Legi Bariani Bernucci JoséAlberto Quintanilha University of São Paulo Department of Production EngineeringSo Paulo 05508-070Brazil Federal University of Lavras Department of Exact SciencesMinas Gerais 37200-900Brazil University of São Paulo Department of Transport EngineeringSão Paulo 05508-070Brazil Institute of Energy and Environment São Paulo 05508-010Brazil

In this paper we present relevant contributions and important features related to the study of the retroreflectivity performance of pavement *** contribution of this paper is ***,we propose an artificial scheme to allow some randomization of the treatments owing to several restrictions imposed on the choice of the experimental *** is an experiment involving one fixed factor(three types of materials)in a randomized block design executed on a high-traffic-volume *** this condition,the traffic volume works as a stress factor and the degradation of the retroreflectivity of pavement markings is faster than the degradation on rural roads or *** is related to the second contribution:the possibility of a reduction of experimental *** current experiment spent 20 weeks to collect the *** finally a mixed linear model considering three random effects and several fixed effects is fitted and the most relevant effects pointed *** study can help highway managers to improve road safety by scheduling the maintenance of pavement marks at the appropriate time,choosing adequate material for the pavement markings and applying the proposed artificial scheme in future studies.

关键词： highway safety design of experiment mixed linear model longitudinal experiment pavement markings

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研究卵丘选择精子的毛细管—卵丘模型

研究卵丘选择精子的毛细管—卵丘模型

澳门、香港、内地生殖健康研讨会

作者： Chiu P.C. Lee K.F. tse J.M.Y. ho P.C. Yeung W.S.B. Department of Obstetrics and Gynaecology University of Hong KongQueen Mary HospitalPokfulam Innovation and Technology Commission

在体内精子必须穿过卵丘才能受精。有大量的证据显示卵丘在体和体外受精过程中均很重要。已有多种体外模型用来研究卵丘对精子功能的影响。然而,所有的这些模型均有不足,可能不能代表体内的状态。本研究描述了如何建立全新的毛细管-卵... 详细信息

在体内精子必须穿过卵丘才能受精。有大量的证据显示卵丘在体和体外受精过程中均很重要。已有多种体外模型用来研究卵丘对精子功能的影响。然而,所有的这些模型均有不足,可能不能代表体内的状态。本研究描述了如何建立全新的毛细管-卵丘模型

关键词：毛细管

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醋对上皮组织作用的组织学的研究

山西医学院学报 1959年第1期 1-6页

作者：何泽涌杨菊香李之和山西医学院组织学胚胎学教研组

醋是一种日常的调味品,同时又是一种外敷、内服的药物;明李时珍的本草纲目中说醋'主治:消■肿、散水气、杀邪毒、理诸药、消毒、治产后血运、除症块坚积、消食、杀恶毒、破结气,心中酸水痰饮、下气除烦、治妇人心

关键词：表皮角化皮肤上皮珠生发层增厚背侧面小白鼠腹侧面

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30■钢中发纹问题的研究

金属学报 1959年第2期 114-126页

作者：何镇乾陈继志冯梦菊朱源太金属研究所某钢厂

本文结合生产研究了碱性电炉冶炼30航空结构钢材中的发纹问题。大量生产检验结果的统计分析指出:发纹的平均长度与钢材尺寸有密切的关采,钢锭锻轧成材后,钢材直径越小,则出现的发纹也越长;340×340公厘见方的钢锭当加工成60～70公厘直... 详细信息

本文结合生产研究了碱性电炉冶炼30航空结构钢材中的发纹问题。大量生产检验结果的统计分析指出:发纹的平均长度与钢材尺寸有密切的关采,钢锭锻轧成材后,钢材直径越小,则出现的发纹也越长;340×340公厘见方的钢锭当加工成60～70公厘直径的钢材时出现发纹的机率最大;同时钢材中发纹分布与钢锭原来部位也有一定的关系。产生发纹的原因是由于链状非金属夹杂物的存在,如铁尖晶石（AL2O3·FeO）和铁尖晶石与刚玉的混合物（Al2O3·FeO;Al2O3）之类。生产试验证明:改善脱氧、采用不同的锻造比以及在锻造过程中进行扒皮可以大大减少以至完全消灭钢中发纹。

关键词：夹杂物酸浸刚玉对应关系浸出宝石铁尖晶石塔形钢中

红壤微生物学特性 (一)浙江省衢县低丘红壤的微生物学分析

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土壤学报 1964年第4期 390-400页

作者：钱澤澍何福恒冯孝善刘素云陈本楚浙江农业大学浙江农业科学院

浙江省的低丘红壤主要有两种类型,一种是以第四纪初期洪积体-红土层为母质,经长期的自然生物气候条件作用发育而成的红-黄色土壤,农民称为“黄筋泥”。黄筋泥土层深厚,质地一般属粉砂质粘土,呈强酸性反应。另一种是以衢江红砂岩的风化... 详细信息

浙江省的低丘红壤主要有两种类型,一种是以第四纪初期洪积体-红土层为母质,经长期的自然生物气候条件作用发育而成的红-黄色土壤,农民称为“黄筋泥”。黄筋泥土层深厚,质地一般属粉砂质粘土,呈强酸性反应。另一种是以衢江红砂岩的风化体为母质

关键词：浙江省真菌低丘微生物学特性相对数量黄筋微生物数量荒地程度土粒加富培养滞留期固氮菌固氮细菌霉菌熟化度