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Theoretical Investigation of Small Lathanum Carbide Clusters

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Chinese Chemical Letters 1997年第10期8卷 919-922页

作者： Wu, zj Meng, QB Zhang, SY ChINESE ACAD SCI CHANGCHUN INST APPL CHEMCHANGCHUN 130022PEOPLES R CHINA

LaC2+, LaC22+, LaC3 and LaC3- clusters have been studied using B3LYP density functional method. Four isomers with C-2v, C-s, C-infinity v and D-infinity h symmetry were presented for LaC2+ and LaC22+. Meanwhile, two spin states, namely, singlet and triplet for LaC2+, doublet and quartet for LaC22+ were considered The results indicated that ring isomers with C-2v and C-s symmetry are the most stable for La-C2(+) at both spin states and for LaC22+ at quartet state. Whereas for LaC22+ at doublet state, linear isomer with C-infinity v symmetry is energetically favored, For LaC3 and LaC3- clusters,, three isomers have been presented for each cluster, that is, two ring isomers with C-2v symmetry ( in one of them, La forms two single bonds with two carbons, and in another, La forms a double bond with carbon), and one linear isomer with C-infinity v symmetry. The results revealed that the ring isomer in which La forms two single bonds with carbons is the lowest in energy.

关键词： Rev Theoretical Investigation of Small Lathanum Carbide Clusters

A New Nor-neolignan from Cremanthodium ellisii

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Chinese Chemical Letters 1999年第2期10卷 129-130页

作者： Su, BN Zhu, QX Jia, zj Lanzh.u univ Dept Chem Natl Lab Appl Organ Chem Lanzhou 730000 Peoples R China

A new nor-neolignan, named ellisinin A (1), has been isolated from the traditional Tibetan medicinal plants of Cremanthodium ellisii. Its structure has been determined on the basis of spectroscopic evidence, especiall... 详细信息

关键词： Cremanthodium ellisii compositae nor-neolignan ellisinin A

A New Lignan Glucoside from Lancea tibetica

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Chinese Chemical Letters 1999年第1期10卷 37-38页

作者： Su, BN Yuan, CS Jia, zj Lanzh.u univ Natl Lab Appl Organ Chem Dept Chem Lanzhou 730000 Peoples R China

A new 7-9'-monoepoxy tetrahydrofuran type lignan glucoside with the cis-relationship of h-7 and h-8, named tibeticoside A 1, was isolated from the medicinal whole plants of Lancea tibetica. Its structure was elucidate... 详细信息

关键词： Lancea tibetica scrophulariaceae tibeticoside A

MONOTONE PIECEWISE CuRVE FITTING ALGORIThMS

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Journal of Computational Mathematics 1994年第2期12卷 163-172页

作者： ZhANG, zj YANG, ZQ ZhANG, CM ChINESE ACAD SCI CTR COMPBEIJINGPEOPLES R CHINA

A piecewise cubic curve fitting algorithm preserving monotonicity of the data with.ut modification of the assigned slopes is proposed. The algorithm has the same order of convergence as Yan's algorithm[8] and Gasparo-Morandi's algorithm[5] for accurate or 0(h(q)) accurate given data, but it has a more visually pleasing curve than those two algorithms. We also discuss the convergence order of cubic rational interpolation for 0(h(q)) accurate data.

关键词： interpolation piecewise cubic preserving monotone proof explicit rational fitting partition

Atemoyacin A: A new bis-tetrahydrofuranyl annonaceous acetogenin from Annona atemoya h.

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Chinese Journal of Chemistry 1995年第3期13卷 263-266页

作者： ChEN, WS YAO, zj ZhANG, YB Xu, YZ Wu, YL ChINESE ACAD SCI SHANGHAI INST ORGAN CHEMSTATE KEY LAB BIOORGAN & NAT PROD CHEMSHANGHAI 20032PEOPLES R CHINA ChINESE ACAD SCI S CHINA INST BOTCANTON 510650PEOPLES R CHINA

Atemoyacin A, a new annonaceous acetogenin was isolated from the alcoholic extract of the seeds of Annona atemoya hort (Annonaceae). Its structure and relative configuration were elucidated on the basis of the spectra... 详细信息

关键词： ANONNA ATEMOYA hORT ANNONACEOuS ACETOGENIN ATEMOYACIN A STRuCTuRAL ELuCIDATION RELATIVE CONFIGuRATION

Preparation,characterization and in vitro release study of a glutathione-dependent polymeric prodrug Cis-3-(9h-purin-6-ylthio)-acrylic acid-graft-carboxymethyl chitosan

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Preparation,characterization and in vitro release study of a...

Study on enhancement of fibronectin-mediated bacillus Calmette-Guerin attachment to urinary bladder wall in rabbits

2012年湖北生物产业发展高端论坛暨湖北省生物工程学会2012年度学术交流会

作者： Gong XY Yin Yh huang zj Lu B Xu Ph Zheng h School of Chemical Engineering Wuhan University of Technology

In this work,an amphophilic polymeric prodrug Cis-3-(9h-purin-6-ylthio) -acrylic acid-graft-carboxymethyl chitosan(PTA- g-CMCS) was designed and *** aqueous solution,this grafted polymer can self-assemble into spherical micelles with a size ranging from 104 to 285 nm and zeta potential ranging from—12.3 to—20.1 *** the release study,less than 24%of 6-Mercaptopurine(6-MP) was released from PTA-g-CMCSl in the media containing 2 and 100 M glutathione(GSh),whereas 37%,54%and 75%of 6-MP was released from the media with GSh of 1,2 and 10 mM,***,ph and drug content of the polymeric prodrug only presented slight influence an the 6-MP *** assay demonstrated that this system had higher inhibition ratio on hL-60 cells(human promyelocytic leukemia cells) in the presence of GSh and lower cytotoxicity on mouse fibroblast cell line(L929).There-fore,this nano-sized system is glutathione-dependent,and it can be employed as a potential carrier for the controlled release of 6-MP.

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上海交通大学学报（医学版） 2007年第11期27卷 1375-1375页

作者： Shen zj Wang Y Ding GQ Department of urology Ruijin Hospital School of Medicine Shanghai Jiaotong University Shanghai 200025 China

hydrogen sulfide suppresses endoplasmic reticulum stress-induced endothelial-tomesenchymal transition through Src pathway

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Hydrogen sulfide suppresses endoplasmic reticulum stress-ind...

中国生理学会基质生物学专业委员会成立大会暨第一次全国基...

作者： Ying R Wang XQ Yang Y Gu zj Mai JT Qiu Q Chen YX Wang JF Department of Cardiology Sun Yat-sen Memorial Hospital of Sun Yat-sen University Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology Department of Anesthesia The Second Affiliated Hospital of Guangzhou Medical University

＜正＞AIMS:hydrogen sulfide（h2S）ameliorates cardiac fibrosis in several models by suppressing endoplasmic reticulum（ER）***-to-mesenchymal transition（EndMT）is implicated in the development of cardiac ***,we inves...

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长沙市教师亚健康状态与危险因素调查

中国组织工程研究与临床康复 2007年第39期11卷 7770-7772页

作者：李莹黄志军林玲阳国平陈志恒袁洪中南大学湘雅三医院心内科湖南省长沙市410013

目的:了解长沙市教师亚健康状况的发生率和影响因素,指出长沙市教师目前存在的健康问题并提出改善意见。方法:于2003-05/2006-05选择在湘雅三医院健康管理中心体检并排除器质性疾病的长沙市教师3213名。选用美国康奈尔大学WolffhG和Brod... 详细信息

目的:了解长沙市教师亚健康状况的发生率和影响因素,指出长沙市教师目前存在的健康问题并提出改善意见。方法:于2003-05/2006-05选择在湘雅三医院健康管理中心体检并排除器质性疾病的长沙市教师3213名。选用美国康奈尔大学WolffhG和BrodmanR等编制的自填式健康问卷,即康奈尔医学指数,问卷分18个部分,共有195个问题,每一项目均为两级回答:是或否。"是"记1分,"否"记0分。全部项目得分相加得康奈尔医学指数总分。回收量表进行判断后结合多媒体显微诊断仪结果,两者同为阳性则判断为亚健康状态,并依据量表结果分级。对诊断为亚健康状态的教师发放调查表。调查的危险影响因素包括:年龄、性别、所处学校、文化程度、吸烟、饮酒、工作环境、对工作的喜好程度、工作时间、对工作的胜任情况、工作业绩、深造压力、遇事态度、与同事的关系、有无知心朋友、对生活现状的满意程度、住房条件、家庭融洽、体育锻炼、睡眠时间、均衡膳食、娱乐时间、性生活、操心子女升学就业共24项。结果:①3213名教师中健康人808名(25.15%);处于亚健康状态2405名(74.85%),其中轻度亚健康状态899名(37.38%),中度亚健康状态1309名(54.43%),重度亚健康状态197名(8.19%)。②30～40岁是教师亚健康发生率最高的年龄段(80.98%);女性亚健康发生率高于男性(分别为78.39%,68.87%,χ2=31.17,P0.05)。③年龄30～40岁、对工作厌倦、对生活现状不满意、体育锻炼少、睡眠时间少是教师出现亚健康状态的主要危险因素。结论:长沙市教师的健康状况不容乐观,30～40岁女性大学教师更是亚健康的高发人群。教师应提高对亚健康的认识,通过保持轻松向上的心态、合理锻炼等方式降低亚健康的发生率。

关键词：亚健康教师危险因素 Logistic回归分析