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| 1 | A new ent-atis-16-ene type diterpenol from Euphorbia sieboldiana显示文摘From the acetone extract of the root of Euphorbia sieboldiana,a new ent-atis-16-ene typediterpenol was isolated and its structure was demonstrated as ent-atis-16-ene-13 α-hydroxy-3,14-dione(1)based on the chemical as well as NMR and MS spectroscopic evidences,and finally confirmed by X-ray diffraction, | DING,Yi-Li JIA,Zhong-Jian WANG,Qi-Guang CHEN,Ji-Hong LIU,Yu-Ting Institute of Organic Chemistry,Lanzhou University,Lanzhou 730000 Department of Chemistry,Xingjiang University. | 1991 | Chinese Journal of Chemistry1991，9，2： | 5 |
| 2 | NEW COMPOUNDS FROM PEUCEDANUM PRAERUPTORUM显示文摘Four new compounds named qianhucoumarins E, F, G and baihuaqianhuoside have been isolated from the root of Peucedanum praeruptorum. Their structures were elucidated by chemical evidences and spectral analysis. | Ling Yi KONG Yue Hu PEI Xian LI~* and Ting Ru ZHU Research Department of Naturat Medicine, Shenyang College of Pharmacy, Shenyang, 110015 | 1993 | Chinese Chemical Letters1993，4，1： | 2 |
| 3 | STUDIES ON TWO NEW FUROSTANOL GLYCOSIDES FROM ALLIUM MACROSTEMON BUNGE显示文摘Two new furostanol saponins,named macrostemonoside E(1)andF(2),were isolated from the bulbs of Allium macrostemon Bunge(Liliaceae),their structures were established oy spectroscopic analysisand chemical evidences.Both possessed strong inhibitory activity onhuman platelet aggregation. | Jun Peng PENG Xuan WANG Xin Sheng YAO~(**) Department of Phytochemistry,Shenyang College of Pharmacy Shenyang,110015 | 1993 | Chinese Chemical Letters1993，4，2： | 2 |
| 4 | NEW COUMARINS FROM PEUCEDANUM PRAERUPTORUM显示文摘Four new coumarins named qianhucoumarins A, B, C, D have been isolated from traditional Chinese medicine-the root of Peucedanum praeruptorum. Their structures were elucidated by chemical evidences and spectral analysis. | Ling Yi KONG Yue Hu PEI Xian LI~* and Ting Ru ZHU Research Departmen of Natural. Medicine, shenyang College of Pharmacy, Shenyang, 110015 | 1993 | Chinese Chemical Letters1993，4，1： | 1 |
| 5 | NEW EREMOPHILANOLIDES FROM LIGULARIA VEITCHIANA显示文摘The structures of three new eremophilanolides isolated from the roots of LigulariaVeitchiana were shown,by the spectral and chemical evidences,to be 1β,10β-epoxy-6β-hydrox-y-8β-methoxy-eremophil-7(11)-en-12,8α-olide(3),1β,10β-epoxy-6β-(2’ hydroxymethylacryloyloxy)-8β-methoxy-eremophil-7(11)-en-12,8α-olide(4)and 1β,10β-epoxy-6β-(2’-methoxymethylacryloyloxy)-8β-hydroxy-eremophil-7(11)-en-12,8α-olide(5). | Yu ZHAO Zhong Jian JIA Ren Xiang TAN Institute of Organic Chemistry,State Key Laboratory of Applied Organic Chemistry at Lanzhou University,Lanzhou 730000, | 1992 | Chinese Chemical Letters1992，3，1： | 1 |
| 6 | Some Preliminary Results on Pilot Study of Global Change in China显示文摘On the basis of existing data and research results the changes of life supporting environment in China in the history are briefly described. The differences between regional climate variations and climate jump are the very important features and phenomena in estimating the trend of environmental evolution in the future. Finally, it is pointed out that sensitive zone is an ideal place to study global change. Many evidences show that the response of environmental elements in the sensitive zones to global change events is very obvious, so that much attention should be paid to the study of sensitive zone. | 陈泮勤 严中伟 | 1993 | Advances in Atmospheric Sciences1993，10，2： | 1 |
| 7 | SYNTHESIS AND CHARACTERIZATION OF A NEW THREE-ARMS-NINE-CHAINS DISCOTIC LIQUID CRYSTAL显示文摘A new three-arms-nine-chains discotic molecule has been synthesized,and theaggregation structure of the compound was measured by x-ray diffraction,infraredspectra,polarizing microscope,etc.From these evidences,the new discotic liquid crystalis found to have the discotic lammelar phase. | Bo LIU Harbin University of Science and Technology,Harbin 150080Xiang Yu ZBANG Chemistry Department,Heilongjiang University,Harbin 150080Xiao Zhen YANG Polymer Physics Laboratory,Institute of Chemistry,Academia Sinica,Beijing 100080 | 1992 | Chinese Chemical Letters1992，3，8： | 1 |
| 8 | FIVE NEW DITERPENES FROM EUPHORBIA SIEBOLDIANA显示文摘Five new diterpenes were isolated from Euphorbia sieboldianaand identified as atis-16-en-13(S)-hydroxy-3,14-dione(Ⅰ),atis-16-en-14-oxo-13(S),3 β-diol(Ⅱ),atisane-3-oxo-16α,17-diol(Ⅳ),atisane-3β,16α,17-triol(Ⅴ)and atisane-3β-acetyl-16α,17-diol(Ⅵ)based onthe chemical,spectral evidences and X-ray diffraction. | Yi Li DING Zhong Jian JIA Yu Ting LIU Institute of Organic Chemistry of Lanzhou University Lanzhou,730000,China Chemistry Department of Xingjiang,Wulumuqi. | 1990 | Chinese Chemical Letters1990，1，1： | 1 |
| 9 | Distribution and drug sensitivity of pathogens in diabetic foot ulcer secretions显示文摘Objective To investigate the distribution and drug sensitivity of pathogens isolated from diabetic foot ulcer(DFU) secretions. Methods A retrospective study was carried out on the distribution and drug sensitivity of pathogens isolated from the secretions of 218 | 李惠琴 | 2013 | China Medical Abstracts(Internal Medicine)2013，30，1： | 0 |
| 10 | Analysis of effect on infectious diseases outbreak detection performance by classifying provinces for moving percentile method显示文摘Objective Providing evidences for further modification of China Infectious Diseases Automated-alert and Response System(CIDARS)via analyzing the outbreak detection performance of Moving Percentile Method(MPM)by optimizing thresholds in different provinces.Methods We collected the amount of MPM signals,response results of signals in CIDARS,cases data in na- | 张洪龙 | 2014 | China Medical Abstracts(Internal Medicine)2014，31，2： | 0 |
| 11 | TRANSITION STATE OF THE REACTION OF ETHYLENE OXIDE WITH NH_2^-——A QUANTITM CHEMICAL STUDY显示文摘We have studied the transition state of the ring opening interaction of ethylene oxide with amine ion. The geometries of the reactants and product of the reaction C2H4O+NH2-→NH2CH2CH2O- are optimized by a variable metric method proposed by Murtagh-Sargent, which makes use of the energy gradient technique based on the ab initio MO method with STO-2G basis set. The attacking reagent NH2-, is assumed to approach one of the carbon atoms of ethylene oxide from the side opposite to the oxygen atom (a transmode attack) according to the experimental evidences of organic chemistry. An approximate reaction path is obtained by the method of 'linear internal coordinate path'. Only one | 于建国 刘若庄 | 1984 | Chinese Science Bulletin1984，29，7： | 0 |
| 12 | EFFECT OF ACTINOMYCIN D ON RNA SYNTHESIS OF TOBACCO MOSAIC VIRUS显示文摘It has long been known that actinomycin D (AMD) strongly inhibits DNA-dependent RNA synthesis. But there exist discrepancies of opinon or even contradictions of evidences for its effect on the replication of viruses (as well as bacteriophages) containing RNA as genome. Snger and Knight reported that TMV-RNA synthesis was not inhibited by AMD, thus they considered that the template function of DNA was not involved in the synthesis of the viral RNA. | 田颖川 覃秉益 王祈楷 | 1982 | Chinese Science Bulletin1982，27，2： | 0 |
| 13 | REGIOSELECTIVITY IN THREECENTRED RADICAL ABSTRACTION REACTIONS显示文摘Herschbach’s electronegativity ordering rule is a very useful empirical one. According to the rule, a reaction between a radical (or an atom) and a molecule XY will always favor attack on the less electronegative atom of XY. Many new experimental techniques such as the cross molecular beam have lent many new evidences in | 罗渝然 | 1981 | Chinese Science Bulletin1981，26，2： | 0 |
| 14 | A NEW DAMMARANE SAPONIN FROM GYNOSTEMMA COMPRESSUM显示文摘A new dammarane saponin, Gycomoside I was isolated from Gynostemma compressum and elucidated as 1β, 3β, 12β,20(S), 26-pentahydroxy-dammar-24(25)-en-20(S)-O-β-D-glucopyranosyl6-β-D-glucopyranoside based on the chemical and spectral evidences. | Shu Li DING~* and Zhao Yi ZHU Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100094 | 1992 | Chinese Chemical Letters1992，3，10： | 0 |
| 15 | 重复性言词证据排除若干问题研究(英文)显示文摘随着非法证据排除制度的出台及其适用,重复言词证据排除问题随之浮出水面,一次非法取证行为,是否意味着受其影响紧随其后的一系列取证行为的'非法',这就关系到重复言词证据的排除问题。排除重复言词证据已经成为有效实施非法证据排除规则的必然要求,而且非法证据的排除是认定重复言词证据可采性的必经程序,是排除重复言词证据的关键,但是司法实践中法院对非法证据排除所持的消极不作为态度以及现阶段我国法院系统与公安、检察系统的'同质性'等现实问题又意味着排除重复言词证据必将面临重重障碍,另外,我国司法实践中法官自由裁量权的制约以及冤错案的频发,要求重复言词证据的排除必须坚持绝对排除原则,而依据法官自由裁量权决定排除范围的方法是不可行的。 | 田荔枝 权艳平 | 2015 | China Legal Science2015，3，2： | 0 |
| 16 | THE RELATIONSHIPS BETWEEN TREE RINGS OF QILIANSHAN JUNIPER AND CLIMATIC CHANGE AND GLACIAL ACTIVITY DURING THE PAST 1000 YEARS IN CHINA显示文摘The climatic history of China during recent centuries are not known in detail, though there exist many indirect evidences of the significant climatic change. Dendroclimatic analysis presents a very promising method to acquire information on the chronology | 王玉玺 刘光远 张先恭 李存法 | 1983 | Chinese Science Bulletin1983，28，12： | 0 |
| 17 | ON THE STAR-BURST MODEL FOR MARKARIAN 8显示文摘Bursts of stair formation have been recently used to expain the radio emissions from a number of active galaxies. A star bursar is an event in which the rate of star formation is much higher than normal . It is not clear what generates the bursts of star formation and how they are generated. It may be caused by the interaction of one galaxy with another galaxy. Some evidences have been found, for instance, some spiral galaxies having companions seem to be stronger in radio band than other spiral galaxies without them. It may also be generated by internal shock waves of supernova explo- | 尹其丰 | 1985 | Chinese Science Bulletin1985，30，10： | 0 |
| 18 | EFFECT OF PLANT HORMONES ON RESTORATION OF NITRATE REDUCTASE (NR 1.6.6.2) ACTIVITY OF MOLYBDENUM-DEFICIENT TOMATO LEAVES显示文摘Mo-deficiency exercises a conspicuous effect on the NR activity of plant tissues, and little detectable NR activity develops in plant tissues lacking Mo. Many evidences indicate that an addition of Mo to Mo-deficient nutrient solution can induce the restoration of NR activity in such plant tissues. | 李止正 安林昇 刘吉泽 倪晋山 | 1981 | Chinese Science Bulletin1981，26，9： | 0 |
| 19 | PREPARATIONS IN ANALYSIS OF SEDIMENTARY ROCK AND FOSSIL SPECIMENS BY ELECTRON MICROSCOPE显示文摘The application of electron microscope (TEM) to the study of microtexture of sedimentary rocks and fossils, such as grain size and shape, contacts between grains, porosity, distribution and patterns of microcracks as well as their microfossil contents, has provided us with reliable evidences on sedimentary environment and diagen- | 李懋 孙逢育 俞从流 | 1980 | Chinese Science Bulletin1980，25，4： | 0 |
| 20 | High-spin States in Spherical 91Nb显示文摘It’s conductive to understand the mechanism of single-particle excitation and multi-particle excitation utilizing shell model calculation by the study of nuclei structures in the N=50 region.Spherical nucleus 91Nb,with Z=41 and N=50,is an eligible object investigated.The aim of our work is to extend the level scheme of 91Nb,and seek for evidences of intrinsic excitation,etc. | LUO Peng-wei WU Xiao-guang HE Chuang-ye ZHENG Yun LI Guang-sheng HU Shi-peng LI Cong-bo LI Hong-wei WU Yi-heng LIU Jia-jian WANG Jin-long YAO Shun-he | 2013 | Annual Report of China Institute of Atomic Energy2013，，1： | 0 |
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