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Electrogenerated chemiluminescence sensor for the determination of metoclopramide using ordered mesoporous carbon for immobilizing tris(2,2'-bipyridyl)ruthenium

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Journal of Pharmaceutical Analysis 2010年第1期22卷 14-19页

作者： Shao-Heng Liu,Li-Juan Jia,wang-Ming Lou,Hong-Lan Qi,Cheng-xiao Zhang Key Laboratory of Analytical Chemistry for Life Science of shaanxi Province,School of Chemistry and Materials Science,shaanxi normal university,xi’an 710062,china Key Laboratory of Analytical Chemistry for Life Science of shaanxi Province School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China

A novel electrogenerated chemiluminescence(ECL)sensor for the determination of metoclopramide was developed by employing ruthenium complex as an ECL signal producer and an ordered mesoporous carbon(OMC)material as modified *** ECL sensor was fabricated by adsorption ruthenium complex into a mixture of OMC and Nafion,which showed good electrochemical and ECL *** was found that the ECL intensity of the sensor fabricated was greatly enhanced in the presence of *** on this finding,a highly sensitive and reproducible ECL method was developed for the determination of *** result showed that the ECL intensity was linear with the concentration of metoclopramide in the range from 1.0×10-10 to 5.0×10-7M and the detection limit was 3×*** ECL sensor exhibited a long-term stability and a fine reproducibility with relative standard deviation of 1.0 % for 1.0×10-10M metoclopramide in 18 continuous *** developed method has been applied to the determination of metoclopramide in tablet samples with satisfactory results.

关键词： metoclopramide pharmaceutical analysis chemical sensor electrogenerated chemiluminescence ruthenium complex

The Promoting Effect on the Activities ofFe Doped TiO_2 Photocatalysts

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Chemical Research in Chinese Universities 2001年第2期17卷 187-192页

作者： YU xi-bin, wang Gui-hua and LI He-xing (Department of Chemistry, Shanghai normal university, Shanghai 200234, P. R. china) Shanghai normal Univ Dept Chem Shanghai 200234 Peoples R China

The particles of titanium-iron (Ti/Fe) complex with different Fe contents were prepared by means of the sol-gel method and used as a photocatalyst. The activity of the catalyst was investi- gated as a function of the Fe content during the liquid-phase oxidation of tetracycline, which showed an enhancement at the low Fe content. The XRD, Raman, XPS, and UV-Vis absorp- tion spectra indicated that the crystalline structure of the Ti/Fe complex particles changed from anatase phase to rutile phase when the Fe content increased. The isolated Fe203, Fe304, FeO species were observed and Fe3+ ions were highly dispersed in the TiO2 matrixes, then Ti-O-Fe species were formed. These species increased the surface defects of the Ti/Fe particles. Also, ac- tive hydroxyl radicals could be generated in the catalytic transformation, which led to the higher activity of the catalyst than bare Ti02 for the degradation of tetracycline.

关键词： Titanium Fe doped photocatalyst Photocatalytic activity Tetracycline

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诗乐离合与词体确立

陕西师范大学学报(哲学社会科学版) 2000年第4期 26-30页

作者：汪聚应陕西师范大学文学院!陕西西安710062

探讨词体生成的诗源说和乐源说都有偏颇。从四、五、七言诗体形成与音乐的关系以及隋唐燕乐歌辞的发展可看出词体确立是诗乐离合嬗变发展的产物。词主要是在音乐的带动和诗乐结合传统的滚动发展以及文人歌妓联手催生等一系列社会文化条... 详细信息

探讨词体生成的诗源说和乐源说都有偏颇。从四、五、七言诗体形成与音乐的关系以及隋唐燕乐歌辞的发展可看出词体确立是诗乐离合嬗变发展的产物。词主要是在音乐的带动和诗乐结合传统的滚动发展以及文人歌妓联手催生等一系列社会文化条件的综合作用下产生的。

关键词：诗乐离合词体燕乐歌辞

GIS-Based Assessment of Land Suitability for Optimal Allocation in the Qinling Mountains, china

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Pedosphere 2006年第5期16卷 579-586页

作者： LIU Yan-Sui wang Jie-Yong GUO Li-Ying Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 （China） Graduate School of Chinese Academy of Sciences Beijing 100039 （China） College of Tourism and Environmental Sciences Shaanxi Normal University Xi＇an 710062 （China）

A GIS-based method was used to assess land suitability in the Qinling Mountains, shaanxi Province of china through simultaneous consideration of physical features and current land use. Through interpretation of Landsat TM images and extensive field visits the area was modeled into 40 land types in five altitudinal zones (valleys and gullies, hillsides and terraces, foothills, mid-mountain, and sub-alpine mountain). Then, a suitability score was assigned to five physical factors (climate, hydrology, topography, soil, and vegetation). Next, their integrated overall suitability value scores were compared with the observed land cover to determine whether it should be reallocated a new use. Results showed that the five suitability classes of agriculture, forest, grassland, farmland-woodland, and scrub-pasture had altitudinal stratification and a total of 1151 km2 (8.89%) of lands on the northern slopes of the Qinling Mountains had to be reallocated. To achieve this reallocation, 657 km2 of arable land should be reduced, and forest, grassland and scrub-pasture increased by 615 km2, 131 km2 and 405 km2, respectively. Implementation of these recommended land reallocations should help achieve suitable use of land resources and prevent land degradation.

关键词： GIS landforms optimal allocation Qinling Mountains suitability evaluation

The theoretical study on structure and stability of dianions BeC2n2- （n=2-6）

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The theoretical study on structure and stability of dianions...

A novel aberrant splicing of G_(sa) transcript in human leukemia cell lines

中国化学会第九届全国量子化学学术会议

作者： Congjie Zhang Wenliang wang School of Chemistry & Materials Science, shaanxi normal university, xi''an, 710062, china

＜正＞In recent years, there are significant advances in experimental and theoretical study of the formation and stability of dianions in gas-phase. In 1999, Klein and Middleton discovered a new class of beryllium carbon dianions with formula BeC2n2- in gas phase using accelerator mass spectrometry （AMS） and Coulomb Explosion Imaging （CEI）. In this paper, the structures, vibrational frequencies of mixed beryllium carbon dianions BeC2n2- （n=2-6） and its monoanion have been investigated using density functional theory and ab initio

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Chinese Science Bulletin 1999年第4期44卷 340-344页

作者： YE Qinong, YAO xiao, wang Hengliang, ZHANG Shu, LIU Huaitian, SU Guofu, HUANG Cuifen and ZHOU Tingchong Beijing Institute of Biotechnology, Beijing 100071, china Department of Biology, shaanxi normal College, xi’an 710062, china Beijing Medical university, School of Oncology, Beijing 100036, china Beijing Institute of Microbiology and Epidemiology, Beijing 100071, china Beijing Institute of Basic Medicine Sciences , Beijing 100850, china Beijing Institute of Biotechnology Beijing China Department of Biology Shaanxi Normal College Xi’an China School of Oncology Beijing Medical University Beijing China Beijing Institute of Microbiology and Epidemiology Beijing China Beijing Institute of Basic Medicine Sciences Beijing China

The α subunit of the stimulatory G protein, Gsα, is involved in the stimulation of adenylate cyclase pathway of signal transduction. The various Gsα mRNAs are generated either by alternative splicing or by using alternative promoter. A novel aberrant splicing of Gsα transcript in human leukemia cell lines is reported. The entire coding region of Gsα gene obtained, referred to as GsαLeu, was amplified by PCR with cDNA from Jurkat human leukemia cDNA library or the reverse-transcribed first strand cDNA from human leukemia cell line HL-60 as a template. The result of DNA sequencing indicated that,compared with originally reported Gsα, GsαLeu has two in-frame deletions, one in amino acid residues 23—249 and the other in amino acid residues 254—260, suggesting that G（sαLeu） may play an important role in leukemia. The complete coding region of GsαLu was inserted downstream of the thrombin site of pGEX-2T fusion protein expression vector and expressed in the form of GST/G(

关键词： Gsa splicing leukemia cloning and expression.

The effects of 8-week continuous exercise and interval exercise on myocardial infarct size,hemodynamic as well as expressions of Bcl-2,Bax and Caspase-3 of myocardial infarction rats

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The effects of 8-week continuous exercise and interval exerc...

中国生理学会心血管生理学术研讨会

作者： Kunru Zhang,Tao Zhao,Youhua wang Sport College of shaanxi normal university,xi’an,710062,china

Objective:Physical activity has been shown to improve cardiovascular function and to be beneficial to type 2 diabetic *** current guidelines are controversial regarding exercise training in cardiovascular prevention and *** the aims of this study were to observe the protective effects of 8 week continuous exercise(CE) and interval exercise (IE) on myocardial infarction SD rats,and to investigate the underlying ***: Sprague-Dawley rats treated with coronary artery ligation were randomly subjected to 8 week continuous exercise(treadmill running at 60 -70%of VO,lh/day,5d/week) or interval exercise(treadmill running intervals at 75-85%of VO,lh/day,5d/week).Myocardial infarct size,LVSP(Left ventricular systolic pressure),LVEDP(Left ventricular end diastolic pressure),±LVdp/dt(Maximal rate of left ventricular pressure development) were observed at the end of exercise,expressions of Bcl-2,Bax and Capase-3 in myocardium were determined by immunohistochemical ***:Coronary artery ligation caused significant myocardial infarction and cardiac *** with sedentary group,rats subjected to 8 weeks of CE or IE showed heart protective effects as evidenced by reduced myocardial infarction(31.6±2.5%vs.35.3±2.4%,26.8±1.5%vs.35.3±2.4%,n = 8,P < 0.05, respectively ),improved recovery of cardiac systolic/diastolic function(including LVSP and±LVdp/dt),increased the expression of anti-apoptosis protein Bcl-2(1.163±0.055VS 0.560±0.028,1.50±0.153 VS 0.560±0.028,n = 8,P < 0.05),and decreased the expression of apoptosis protein Bax(0.705±0.051 vs.0.903±0.148,0.50±0.186 vs.0.903±0.148,n=8,P<0.05, respectively) and Capase-3 in myocardium(0.605±0.096 vs.0.903±0.148,0.489±0.112 vs. 0.903±0.148,n= 8,P<0.05,respectively).Moreover,the protective effect of interval training is more significant than that of continuous training,which perhaps results from interval training reducing myocardial cells apoptosis ***

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禅宗与盛唐山水审美意识的转变

陕西师范大学学报(哲学社会科学版) 2000年第4期 36-42页

作者：傅绍良陕西师范大学文学院!陕西西安710062

中国山水诗的审美观念经历了几次大的转变，每次转变都与那个时代特定的文化思潮密切相关。盛唐时代兴盛的禅宗，无论从生活行为还是审美情趣上都对当时的诗人产生了深刻的影响，作为这种影响的直接体现便是山水诗审美观念的转变。在先... 详细信息

中国山水诗的审美观念经历了几次大的转变，每次转变都与那个时代特定的文化思潮密切相关。盛唐时代兴盛的禅宗，无论从生活行为还是审美情趣上都对当时的诗人产生了深刻的影响，作为这种影响的直接体现便是山水诗审美观念的转变。在先秦两汉时期，中国人的山水观念以“游”为主；魏晋南北朝时期，以“赏”为主；盛唐时代，则以“归”为主。虽然不能排除在盛唐以及此后的山水观念中有多种审美情趣并存的现象，但是作为一种美学情趣，人们所追求的正是以王维为代表的那种“清空”、“无染”之境。

关键词：禅宗山水诗盛唐文学审美意识

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全球化的内在逻辑与中国国际战略的范式转换

陕西师范大学学报（哲学社会科学版） 2001年第4期30卷 28-33页

作者：王振亚陕西师范大学政治经济学院陕西西安710062

全球化已成为新世纪不可逆转的潮流。相互依存作为一种新的分析框架，揭示了全球化的内在逻辑，概括了全球化背景下国际关系的本质特征。面对全球化的机遇和挑战，中国必须顺应潮流实现国际战略范式的转换和创新，同时防止落入全球化"陷... 详细信息

全球化已成为新世纪不可逆转的潮流。相互依存作为一种新的分析框架，揭示了全球化的内在逻辑，概括了全球化背景下国际关系的本质特征。面对全球化的机遇和挑战，中国必须顺应潮流实现国际战略范式的转换和创新，同时防止落入全球化"陷阱"。

关键词：全球化国际关系国际战略范式转换指导思想价值取向运行方式