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1On adjacent-vertex-distinguishing total coloring of graphs显示文摘In this paper, we present a new concept of the adjacent-vertex-distinguishing total coloring of graphs (briefly, AVDTC of graphs) and, meanwhile, have obtained the adjacent-vertex-distinguishing total chromatic number of some graphs such as cycle, complete graph, complete bipartite graph, fan, wheel and tree.ZHANG Zhongfu, CHEN Xiang’en, LI Jingwen, YAO Bing, LU Xinzhong & WANG Jianfang College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China Department of Computer, Lanzhou Normal College, Lanzhou 730070, China Institute of Applied Mathematics, Lanzhou Jiaotong University, Lanzhou 730070, China College of Information and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China Institute of Applied Mathematics, Chinese Academy of Sciences, Beijing 100080, China 2005Science China Mathematics2005,48,3:173
2GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates.WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng 2008Science China Earth Sciences2008,51,9:65
3aunalysis of the Genome Sequence of the Medicinal Plant Salvia miltiorrhiza显示文摘Haibin Xu Jingyuan Song Hongmei Luo Yujun Zhang Qiushi Li Yingjie Zhu Jiang Xu Ying Li Chi Song Bo Wang Wei Sun Guoan Shen Xin Zhang Jun Qian Aijia Ji Zhichao Xu Xiang Luo Liu He Chuyuan Li Chao Sun Haixia Yah Guanghong Cui Xiwen Li Xian 'en Li Jianhe Wei Juyan Liu Yitao Wang Alice Hayward David Nelson Zemin Ning Reuben J. Peters Xiaoquan Qi Shilin Chen 2016Molecular Plant2016,9,6:70
4D(β)-vertex-distinguishing total coloring of graphs显示文摘A new concept of the D(β)-vertex-distinguishing total coloring of graphs, i.e., the proper total coloring such that any two vertices whose distance is not larger than β have different color sets, where the color set of a vertex is the set composed of all colors of the vertex and the edges incident to it, is proposed in this paper. The D(2)-vertex-distinguishing total colorings of some special graphs are discussed, meanwhile, a conjecture and an open problem are presented.ZHANG Zhongfu,LI Jingwen,CHEN Xiang’en,YAO Bing, WANG Wenjie & QIU Pengxiang Institute of Applied Mathematic, Lanzhou Jiaotong University, Lanzhou 730070, China College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China College of Information and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China 2006Science China Mathematics2006,49,10:54
5Detection of let-7a microRNA by real-time PCR in gastric carcinoma显示文摘AIM: To establish an accurate and rapid stem-loop reverse transcriptional real-time PCR (RT-PCR) method to quantify human let-7a miRNA in gastric cancer. METHODS: According to the sequence of let-7a miRNA,the stem-loop reverse transcriptional primer,the primers and quantitative MGB probes of real-time PCR were designed and synthesized. The dynamic range and the sensitivity of quantitative reverse transcriptional real-time PCR were determined. The levels of let-7a miRNA were examined in 32 gastric carcinoma samples by stem-loop RT-PCR method. RESULTS: The dynamic range and sensitivity of the let-7a miRNA quantification scheme were evaluated,the result showed the assay could precisely detect 10 copies of mature let-7a miRNA in as few as 0.05 ng of total RNA of gastric mucosa. The results of specificity analysis showed no fluorescence signal occurred even though 50 ng of human genomic DNA was added to the reverse transcription (RT) reaction. The expression level of let-7a miRNA in gastric tumor tissues was significantly lower compared to normal tissues in 14 samples from 32 patients. CONCLUSION: The stem-loop RT-PCR is a reliable method to detect let-7a miRNA which may play an important role in the development of gastric carcinoma.Hong-He Zhang Xian-Jun Wang Guo-Xiong Li En Yang Ning-Min Yang 2007World Journal of Gastroenterology2007,13,20:48
6T cell–associated immunoregulation and antiviral effect of oxymatrine in hydrodynamic injection HBV mouse model显示文摘Although oxymatrine(OMT) has been shown to directly inhibit the replication of hepatitis B virus(HBV) in vitro, limited research has been done with this drug in vivo. In the present study, the antiviral effect of OMT was investigated in an immunocompetent mouse model of chronic HBV infection.The infection was achieved by tail vein injection of a large volume of DNA solution. OMT(2.2, 6.7 and20 mg/kg) was administered by daily intraperitoneal injection for 6 weeks. The efficacy of OMT was evaluated by the levels of HBV DNA, hepatitis B surface antigen(HBs Ag), hepatitis B e antigen(HBe Ag)and hepatitis B core antigen(HBc Ag). The immunoregulatory activity of OMT was evaluated by serum ELISA and flow cytometry. Results shows that OMT at 20 mg/kg inhibited HBV replication, and it was more efficient than entecavir(ETV) in the elimination of serum HBs Ag and intrahepatic HBc Ag. Inaddition, OMT accelerated the production of interferon-γ(IFN-γ) in a dose-dependent manner in CD4^+T cells. Our findings demonstrate the beneficial effects of OMT on the enhancement of immunological function and in the control of HBV antigens. The findings suggest this drug to be a good antiviral therapeutic candidate for the treatment of HBV infection.Xiuxiu Sang Ruilin Wang Yanzhong Han Cong’en Zhang Honghui Shen Zhirui Yang Yin Xiong Huimin Liu Shijing Liu Ruisheng Li Ruichuang Yang Jiabo Wang Xuejun Wang Zhaofang Bai Xiaohe Xiao 2017Acta Pharmaceutica Sinica B2017,7,3:20
7Soil Organic Carbon Mineralization as Affected by Cyclical Temperature Fluctuations in a Karst Region of Southwestern China显示文摘The diurnal fluctuation in soil temperature may influence soil organic carbon(SOC) mineralization, but there is no consensus on SOC mineralization response to the cyclical fluctuation in soil temperature. A 56-d incubation experiment was conducted to investigate the effects of constant and variable temperatures on SOC mineralization. Three soils were collected from the karst region in western Guizhou Province, southwestern China, including a limestone soil under forest, a limestone soil under crops and a yellow soil under crops. According to the World Reference Base(WRB) classification, the two limestone soils were classified as Haplic Luvisols and the yellow soil as a Dystric Luvisol. These soils were incubated at three constant temperatures(15, 20 and 25?C) and cyclically fluctuating temperatures(diurnal cycle between 15 and 25?C). The results showed that the 56-d cumulative SOC mineralized(C56)at the fluctuating temperatures was between those at constant 15 and 25?C, suggesting that the cumulative SOC mineralization was restricted by temperature range. The SOC mineralization responses to the fluctuating temperatures were different among the three soils, especially in contrast to those at constant 20?C. Compared with constant 20?C, significant(P < 0.05) decreases and increases in C56 value were found in the limestone soil under forest and yellow soil under crops at the fluctuating temperatures, respectively. At the fluctuating temperatures, the forest soil with lower temperature coefficient Q10(the relative change in SOC mineralization rate as a result of increasing the temperature by 10?C) had a significantly(P < 0.05) lower SOC mineralization intensity than the two cropland soils. These indicated that differences in temperature pattern(constant or fluctuating) could significantly influence SOC mineralization, and SOC mineralization responses to the fluctuating temperatures might be affected by soil characteristics.Moreover, the warmer temperatures might improve the ability of soil microbes to decompose the recalcitrant SOC fraction, and cyclical fluctuations in temperature could influence SOC mineralization through changing the labile SOC pool size and the mineralization rate of the recalcitrant SOC in soils.CI En Mahdi M.AL-KAISI WANG Liange DING Changhuan XIE Deti 2015Pedosphere2015,25,4:12
8Deformation Stages and Ar-Ar Age Data of the Wan-Zhe-Gan Tectonic Zone,Southeast China,and Their Tectonic Significance显示文摘在东南中国通过安徽,浙江,和江西省的边阶区域的主要构造地区通常被叫作 Wan-Zhe-Gan 差错地区。地质上,这个地区由各种各样的年龄和取向的几条地区性的差错带组成。我们基于地调查把差错分成了四个年龄组。Neoproterozoic 差错向东北正在罢工。他们从东北江西省开始并且延长对在安徽省的 Fuchuan 向东北,东北 Jiangxi-Fuchuan ophiolite 带的一样的地点。可能作为一条边界在 Neoproterozoic 期间扮演的差错与 m 指责一个盘子或块缝术的地区 ????YU Xinqi WANG De'en JIANG Dazhi JIANG Laili ZHOU Xiang LI Chunlin 2011Acta Geologica Sinica(English Edition)2011,85,6:10
9Pediculate Brachiopod Diandongia pista from the Lower Cambrian of South China显示文摘The Chengjiang Lagerstatte has been celebrated for prolific soft-bodied fossils. Based on specimens recentlyexcavated in the Chengjiang Lagerstatte by the Early Life Institute, Northwest University, Diandongiapista Rong, 1974, isdirectly revealed to be a pediculate brachiopod, assigned to the Family Botsfordiidae, as is further confirmed by theexceptionally preserved vascular system including dorsal and ventral mantle canals. These specimens described hereinexhibit some peculiarities, notably the extremely thin and long pedicles, which suggest that Diandongia is epifaunal ratherthan burrowing brachiopod. A study of this group of animals indicates that they may be vital to understand the relationshipbetween the lingulids and the remaining brachiopods, and the character evolution of the early Cambrian brachiopods.ZHANG Zhifei, HAN Jian, ZHANG Xingliang, LIU Jianni and SHU DeganEarly Life Institute and Key Laboratory for Continental Dynamics of the Ministry of Education,Northwest University, Xi’an, Shaanxi 710069 E-mail: zhangelle@sina.com.cn Wang Si’en and Xie Guanglian 2003Acta Geologica Sinica(English Edition)2003,77,3:9
10Medicine in Future and Advantages of Integrated Chinese and Western Medicine显示文摘The history of medical development shows that oriental medicine, or traditional medicine, was born through medical practice during the times when science and technology were immature and underdeveloped, whereas with the development of science and technology, Western medicine, or modern medicine, was born through experimental analysis and research. With the development of medicine, the pros and cons of both medical systems become increasingly evident. How to integrate them and learn from each other will be the direction of future development of medicine. The formation and development of integrated medicine will, inevitably, usher in a new era for medicine.ZHANG Jiang-hua WU Mi-shan WANG Yue-fen JIA Ying-min LI En 2019Chinese Journal of Integrative Medicine2019,25,2:7
11Anisotropic optical and electronic properties of two- dimensional layered germanium sulfide显示文摘二维(2D ) 分层的材料,转变金属 dichalcogenides,和黑磷从基本物理和设备应用的观点吸引了可观的兴趣。在各向异性的分层的 2D 材料的新功能的建立是挑战性却令人满意的边疆,由于为新设备的这些材料和他们的前景的显著光性质。此处,我们报导各向异性并且厚度依赖者 2D 的光性质金者硫化物(GeS ) 的分层的 monochalcogenide。相应于 B 3g, 的三座散布 Raman 山峰 g 1 ,和 有强壮的极化依赖的 g 2 模式在 GeS 薄片被表明,它为识别各向异性的分层的 GeS 的水晶取向作为一个有效方法验证极化的拉曼光谱学。光致发光(PL ) 在 ~ 与一座山峰被观察在房间温度在 GeS 从直接光的转变发源的 1.66 eV。PL 的极化依赖者特征,第一次被揭示,在 GeS 的乐队边附近显示明显的各向异性的光转变,它被密度支持功能的理论计算。显著地,厚度依赖者 PL 被观察并且讨论。这各向异性的分层的 GeS 为新物理现象和愿望的发现介绍机会发现利用它的各向异性的性质的应用,例如极化敏感的光电探测器。Dezhi Tan Hong En Lim Feijiu Wang Nur Baizura Mohamed Shinichiro Mouri Wenjin Zhang Yuhei Miyauchi Mari Ohfuchi Kazunari Matsuda 2017Nano Research2017,10,2:7
12A new diarylheptanoid from the bark of Myrica rubra显示文摘新 diarylheptanoid, 3,5-dimethoxyl-17-hydroxyl-4,11,19-triketo-[7,0 ] meta-cyclophane,作为 rubanone 说出 1,与四已知的混合物一起从 Myrica rubra 的 bark 被孤立 2 5。他们的结构被各种各样的分光镜的方法与真实样品包括 2D-NMR 技术或比较阐明。Ding Yong Wang En Gui Liu Yu Jing Feng 2008Chinese Chemical Letters2008,19,5:7
13A New Discovery of ~2.7 Ga Granitic Magmatism in Southeastern Jilin Province, China显示文摘Objective The North China Craton(NCC)is characterized by widespread tectono-thermal events at ca.2.5 Ga,which differs from many other older cratons on Earth,which usually record tectono-thermal events at-2.7 Ga.Therefore,the search for early crustal material,especially rocks within the NCC that record the 2.7 Ga event,isWANG Chaoyang MENG En LI Yanguang CAI Jia YANG Hong LI Zhuang 2017Acta Geologica Sinica(English Edition)2017,91,5:5
14Genetic structure and diversity of Oryza sativa L. in Guizhou,China显示文摘Preserving many kinds of rice resources and rich variations, Guizhou Province is one of the districts with the highest genetic diversity of cultivated rice (Oryza sativa L.) in China. In the current research, genetic diversity and structure of 537 accessions of cultivated rice from Guizhou were studied using 36 microsatellite markers and 39 phenotypic characters. The results showed that the model-based genetic structure was the same as genetic-distance-based one using SSRs but somewhat different from the documented classification (mainly based on phenotype) of two subspecies. The accessions being classified into indica by phenotype but japonica by genetic structure were much more than that being classified into japonica by phenotype but indica by genetic structure. Like Ding Ying’s taxonomic sys- tem of cultivated rice, the subspecific differentiation was the most distinct differentiation within culti- vated rice. But the differentiation within indica or japonica population was different: japonica presented clearer differentiation between soil-watery ecotypes than indica, and indica presented clearer differen- tiation between seasonal ecotypes than japonica. Cultivated rices in Guizhou revealed high genetic diversity at both DNA and phenotypic levels. Possessing the highest genetic diversity and all the nec- essary conditions as a center of genetic diversity, region Southwestern of Guizhou was suggested as the center of genetic diversity of O. sativa L. from Guizhou.ZHANG DongLing ZHANG HongLiang WEI XingHua QI YongWen WANG Meixing SUN JunLi DING Li TANG ShengXiang QIU Zong'En CAO YongSheng WANG XiangKun LI ZiChao 2007Chinese Science Bulletin2007,52,3:5
15Crystal structure of β-cyclodextrin-4-chlorobenzoic acid complex:Unusual C-Cl…π interaction between 4-chlorobenzoic acids in β-cyclodextrin dimer显示文摘The inclusion complex ofβ-cyclodextrin(β-CD) with 4-chlorobenzoic acid was synthesized and its crystal structure was determined by single crystal X-ray diffraction under cryogenic condition.The complex contains twoβ-CDs,two 4-chlorobenzoic acids and twenty-nine water molecules in the asymmetric unit,and can be formulated as 2(C_(42)H_(70)O_(35))·2(C_7H_5O_2Cl)·29(H_2O).In the crystal lattice,twoβ-CDs form a face-to-face dimer jointed together through hydrogen bonding between the secondary hydroxyl groups ofβ-CDs.Two 4-chlorobenzoic acid molecules which contact by C-Cl…πinteractions are included in theβ-CD dimer cavity.Theβ-CD dimers are arranged in brickwork-like pattern along the crystallographic a-axis.The effect of guest molecule length on the inclusion geometry was discussed by comparative study of someβ-CD complexes containing similar guests.En Ju Wang Guang Ying Chen 2011Chinese Chemical Letters2011,22,7:4
16In vitro Study of Nucleostemin Gene as a Potential Therapeutic Target for Human Lung Carcinoma显示文摘Objective Nucleostemin (NS) is a GTP-conjugated protein located in the nucleoli of stem cells and some cancer cells,and maintains cell self-renewal.We aimed to evaluate NS as a potential target for lung carcinoma gene therapy by investigating NS gene expression and its effect on A549 cell proliferation.Methods NS mRNA and protein expression in A549,HepG2,SMMC-7721,HeLa,and U251 cells was analyzed by RT-PCR and western blotting following transfection of NS siRNAs and negative control siRNA (NC).The effect on cell proliferation was also analyzed by MTT assays.Results NS mRNA and protein were both expressed in A549 cells and four other tumor cell lines;the relative expression levels were similar in all five cell lines.The three pairs of NS siRNA,either transfected alone or cotransfected into A549 cells,could effectively inhibit the expression of NS mRNA and protein.Moreover,the interference ratio showed an obvious concentration-dependent relationship.NS siRNA treatment resulted in significant inhibition of A549 cell proliferation by 35.7%.Conclusion NS gene was not only highly expressed but also played an important role in A549 cell proliferation.Thus,targeting of NS may be a promising novel strategy for the treatment of lung carcinoma.GAO Hong Xia GAO Xiu Feng WANG Guo Qing WANG En Shu HUANG Wei HUANG Ping 2012Biomedical and Environmental Sciences2012,25,1:4
17Synthesis and structure of a pure inorganic polyoxo-metalate-based porous framework显示文摘一个纯无机的多孔的框架基于 tungstoferrate [FeW12O40 ] 5, Fe (H2O ) 6H [Na6FeW12O40 ] 2 藄?藄??Hai Hong Wu Zhi Ming Zhang En Bo Wang 2012Chinese Chemical Letters2012,23,3:4
18Plant Growth-Promoting Traits in Rhizobacteria of Heavy Metal-Resistant Plants and Their Effects on Brassica nigra Seed Germination显示文摘Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria(PGPR) for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting(PGP) traits, including production of siderophores and indol-3-acetic acid(IAA). Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizobacteria were also resistant to high levels of heavy metals(including As as a metalloid)(up to 480 mmol L(-1)As(V), 24 mmol L(-1)Pb(Ⅱ), 21 mmol L(-1)Cu(Ⅱ), and 4.5 mmol L(-1)Zn(Ⅱ)). Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay.The inoculation of Brassica nigra seeds with Microbacterium sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1,and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L(-1)Zn(Ⅱ). The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals.Brenda ROMN-PONCE Diana Miryel REZA-VZQUEZ Sonia GUTIRREZ-PAREDES María de Jesús DE HARO-CRUZ Jessica MALDONADO-HERNNDEZ Yanely BAHENA-OSORIO Paulina ESTRADA-DE LOS SANTOS En Tao WANG María Soledad VSQUEZ-MURRIETA 2017Pedosphere2017,27,3:4
19Effects of yttrium and phosphorus on growth and physiological characteristics of Microcystis aeruginosa显示文摘Yttrium is a main kind of rare earth elements(REEs) with wide applications in modern industry and farming. Phosphorus, an essential element of algae, is used as the nutrients and also one of the main factors of eutrophication. To investigate the effects of yttrium and phosphorus on Microcystis aeruginosa(M. aeruginosa), the growth and physiological changes were studied by lab cultured experiments. In the experiment, exogenous yttrium was tested by a concentration gradient(0.0, 0.1, 0.3, 0.5, 1.0 mg/L),meanwhile, phosphorus was tested by three concentrations(0.0, 0.02, 0.2 mg/L). The results show that the contents of chlorophyll a(chl-a) and soluble protein increase compared with the control and they have certain correlation with algal cells density. The growth status of algae is stimulated by initial yttrium concentration <0.3 and 0.2 mg/L phosphorus, while it is inhabited by 0.5 and 1.0 mg/L yttrium. Besides,the activity of superoxide dismutase(SOD) of algae increases with addition of yttrium dose(0-0.3 mg/L)when phosphorus dose is 0.2 mg/L. Furthermore, when yttrium dose is 0.5 and 1.0 mg/L, the vitality of SOD presents a sharp decline. The malondialdehyde(MDA) contents increase with time and addition of yttrium dose, 0.2 mg/L phosphorus weakens the accumulation of MDA.Yingjun Wang Yuanwei Li Xiaoyu Luo Yin'an Ren En'guang Gao Haojie Gao 2018Journal of Rare Earths2018,36,7:4
20STUDY ON CONDUCTIVITY OF TRISUBSTITUTED HETEROPOLYTUNGSTATES GaW_9M_3显示文摘STUDY ON CONDUCTIVITY OF TRISUBSTITUTED HETEROPOLYTUNGSTATES GaW_9M_3STUDYONCONDUCTIVITYOFTRISUBSTITUTEDHETEROPOLYTUNGSTATESG...Xin Wu YU Shu Xia LIU Li WANC Ge WANG Xiu Li WANG En Bo WANG(Department of Chemistry. Northeast Normal University, Changchun 130024) 1996Chinese Chemical Letters1996,7,8:4
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