维普中文期刊产品整合服务
341篇 您的检索式:作者名="Ping Tan"
    题名 作者 年代 出处 被引量
1Lime and Phosphate Could Reduce Cadmium Uptake by Five Vegetables Commonly Grown in South China显示文摘A pot experiment was conducted in artificially Cd-contaminated (5 mg Cd kg-1) soils to investigate the feasibility of using lime (3 g kg-1) or phosphate (80 mg P kg-1) to mitigate uptake of Cd by vegetables.Five common vegetables in South China,including lettuce (Lactuca sativa L.var.ramosa Hort.),Chinese cabbage [Brassica rapa L.subsp.Chinensis (L.) var.parachinensis (L.H.Bailey) Hanect],Chinese broccoli (Brassica oleracea L.var.albiflora Kuntze),white amaranth (Amaranthus tricolor L.) and purslane (Amaranthus viridis L.),were grown in the soils and harvested after 60 d.The results showed that liming significantly reduced Cd uptake by most vegetables by 40%-50% (or a maximum of 70%),mainly due to immobilization of soil Cd.Increased availability of Ca in the soil might also contribute to the Cd uptake reduction as a result of absorption competition between Ca and Cd.Liming caused biomass reduction in white amaranth and purslane,but did not influence growth of the other vegetables.Phosphate decreased Cd uptake by vegetables by 12%-23%.Compared with lime,phosphate decreased,to a smaller extent,the bioavailability of Cd in most cases.Phosphate markedly promoted growth of vegetables.Changes in soil chemistry by adding lime or phosphate did not markedly influence nutrient uptake of vegetables except that lime increased Ca content and phosphate increased P content in shoots of the vegetables.The results suggested that a proper application of lime could be effective in reducing Cd uptake of vegetables,and phosphate could promote growth of the vegetables as well as alleviate the toxicity of Cd.TAN Wan-Neng LI Zhi-An QIU Jing ZOU Bi LI Ning-Yu ZHUANG Ping WANG Gang 2011Pedosphere2011,21,2:34
2Polymorphism Analyses of Hepatitis B Virus X Gene in Hepatocellular Carcinoma Patients from Southern China显示文摘长期的肝炎 B 病毒( HBV )感染是主要原因 ofhepatocellular 癌( HCC )之一,并且 HBV X ( HBx )基因在HBV相关的 HCC.We 的分子的致病起一个关键作用调查了是否有特别 HBx 基因变化,从南部的中国在病人与 HCC 联系。HBx 基因被嵌套的聚合酶链反应(PCR ) 从 HBVcarrier 与 HCC 和 25 件浆液样品从病人在 51paraffin-embedded 肿瘤织物样品检验,搁浅单人赛的 conformational 多型性 andheteroduplex 分析。有从肿瘤织物样品的潜在地重要的变化的 HBx 基因被克隆,在肿瘤织物样品与出版 HBx 基因 sequence.HBV 遗传型定序并且排列被在肿瘤织物的31.3% HBx 基因碎片取样的基因多型性显示出的 HBx 的嵌套的 PCR.Analyses 分析有特殊 pattern.A 在 29 点突变伴随的 HBxgene 的 nt 382-400 的普通删除随机在四被检测有在 HBx 开的读物引起了框架移动的这个模式的选择肿瘤织物样品在 atnt 上与一条新站鳕鱼装裱 1818 ,导致 HBx 多肽链在这些情况中在 C 结束截断了。在四件随机选择的样品之中,三是 HBV 遗传型 B ,并且一个人没被我们的现在的 assay.Inanother 肿瘤织物样品检测,全身的 HBx 基因的扩大产出揭示的这碎片的 shorterfragment.Sequencing 在 1577 HBVgene.These 和 1840 结果建议的 nt 之间的 264 bp 删除那个 HBx 基因变化在 HCC 样品经常发生,并且在 HBx 基因的 nt 382-400 的删除可能在南部的中国在 HCC 的 carcinogenesis 起一个作用。Ping'an ZHU Deming TAN Zhongtian PENG Fei LIU Lin SONG 2007Acta Biochimica et Biophysica Sinica2007,39,4:29
3Efficacy and safety of Xinfeng capsule in patients with rheumatoid arthritis:a multi-center parallel-group double-blind randomized controlled trial显示文摘OBJECTIVE:To evaluate the efficacy and safety of Xinfeng capsule in patients suffering rheumatoid arthritis(RA).METHODS:A multi-center parallel-group designed,double-blind,randomized,controlled trial was conducted.Totally 304 RA patients were assigned to two groups:one group was administered Xinfeng capsule(XFC) plus the placebo of leflunomide and the other given leflunomide(LEF) plus the placebo of XFC for twelve weeks.The clinical and laboratory parameters were compared at baseline and fourth,eighth,and twelfth weeks.RESULTS:After twelve-week treatment,patients in two groups all showed some trend of effectiveness when compared in terms of American Rheumatism Association(ACR) recommended 20%,50%,70%improvement criteria,but it was insignificant.The validity in ameliorate modified disease activity score(DAS28) and laboratory indexes as erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),rheumatoid factor(RF) were also found no difference.The score of health assessment questionnaire(HAQ),self-rating anxiety scale(SAS),self-rating depression scale(SDS) and quality of life questionnaire with rheumatoid arthritis(RAQOL)both lower than the first week and the changes showed no difference.However,the score of SDS dropped more in XFC group than in the other.A total of 147 adverse reaction cases were reported,which shows no difference between the two groups.The most common adverse reactions were hepatic impairment,anemia,leukocytopenia,epigastric discomfort and phalacrosis.CONCLUSION:XFC demonstrated better improvement in the scores of SDS and compared with those of LEF group.Liu Jian Wang Yuan Huang Chuanbing Xu Jianhua Li Zhijun Xu Liang He Liyun Sun Yue Wang Yali Xu Shengqian Zhao Ping Mao Tongjun Tan Bin Zhu Fubing Zhang Pingheng Fang Li 2015Journal of Traditional Chinese Medicine2015,35,5:27
4Effect of Long-Term Application of K Fertilizer and Wheat Straw to Soil on Crop Yield and Soil K Under Different Planting Systems显示文摘Effect of application of K fertilizer and wheat straw to soil on crop yield and status of soil K in the plough layer under different planting systems was studied. The experiments on long-term application of K fertilizer and wheat straw to soil in Hebei fluvo aquic soil and Shanxi brown soil in northern China were begun in 1992. The results showed that K fertilizer and straw could improve the yields of wheat and maize with the order of NPK + St > NPK > NP + St > NP, and treatment of K fertilizer made a significant difference to NP, and the efficiency of K fertilizer in maize was higher than in wheat under rotation system of Hebei. In contrast with Shanxi, the wastage of soil potassium was a more serious issue in the rotation system in Hebei, only treatment of NPK + St showed a surplus of potassium and the others showed a wane. K fertilizer and straw could improve the content of water-soluble K, nonspecifically adsorbed K, non-exchangeable K, mineral K, and total K in contrast to NP; however, K fertilizer and straw reduce the proportion of mineral K and improve proportion of other forms of potassium in the two locating sites. Compared with the beginning of orientation, temporal variability character of soil K content and proportion showed a difference between the two soil types; furthermore, there was a decrease in the content of mineral K and total K simultaneously in the two locating sites. As a whole, the effect of K fertilizer applied to soil directly excelled to wheat straw to soil. Wheat straw to soil was an effective measure to complement potassium to increase crop yield and retard the decrease of soil K.TAN De-shui JIN Ji-yun HUANG Shao-wen LI Shu-tian HE Ping 2007Agricultural Sciences in China2007,6,2:25
5LHD1,an Allele of DTH8/Ghd8,Controls Late Heading Date in Common Wild Rice (Oryza rufipogon)显示文摘Flowering at suitable time is very important for plants to adapt to complicated environments and produce their seeds successfully for reproduction.In rice (Oryza rufipogon Griff.) photoperiod regulation is one of the important factors for controlling heading date.Common wild rice,the ancestor of cultivated rice,exhibits a late heading date and a more sensitive photoperiodic response than cultivated rice.Here,through map-based cloning,we identified a major quantitative trait loci (QTL) LHD1 (Late Heading Date 1),an allele of DTH8/Ghd8,which controls the late heading date of wild rice and encodes a putative HAP3/NF-YB/CBF-A subunit of the CCAAT-box-binding transcription factor.Sequence analysis revealed that several variants in the coding region of LHD1 were correlated with a late heading date,and a further complementary study successfully rescued the phenotype.These results suggest that a functional site for LHD1 could be among those variants present in the coding region.We also found that LHD1 could down-regulate the expression of several floral transition activators such as Ehd1,Hd3a and RFT1 under long-day conditions,but not under short-day conditions.This indicates that LHD1 may delay flowering by repressing the expression of Ehd1,Hd3a and RFT1 under long-day conditions.Xiaodong Dai Younian Ding Lubin Tan Yongcai Fu Fengxia Liu Zuofeng Zhu Xianyou Sun Xuewen Sun Ping Gu Hongwei Cai Chuanqing Sun 2012Journal of Integrative Plant Biology2012,54,10:23
6SHRIMP zircon U-Pb ages and tectonic implications for Indosinian granitoids of southern Zhuguangshan granitic composite, South China显示文摘The large southern Zhuguangshan granitic batholith composite consists of granites with ages varying from the Caledonian through Indosinian to Yanshanian. Based on K-Ar dating data, the ages of the major parts of this composite were previously regarded as Yanshanian. In this study, the SHRIMP zircon U-Pb dating method has been adopted for six plutons, Ledong, Longhuashan, Dawozi, Zhaidi, Baiyun and Jiangnan, in the southern Zhuguangshan composite, in which the four plutons other than Baiyun and Jiangnan were previously regarded as Yanshanian granites. Magmatic zircons from these six plutons, dated by this study, have yielded ages of 239±5 Ma (MSWD = 2.5), 239±5 Ma (MSWD = 2.5), 239±2 Ma (MSWD = 1.7), 239±4 Ma (MSWD = 3.2), 231±2 Ma (MSWD = 0.81) and 231±3 Ma (MSWD = 1.8), respectively. The results indicate that these plutons were formed by early Indosinian magmatism. Geochemical characteristics suggest that these granites were formed in an extensional tectonic environment. Therefore, the Indosinian period granites in the southern Zhuguangshan composite were formed by partial melting of the Paleo-Mesoproterozoic crustal components during the collapse of thickened lithosphere after the collision between the South China and Indosinian plates.DENG Ping REN JiShun LING HongFei SHEN WeiZhou SUN LiQiang ZHU Ba TAN ZhengZhong 2012Chinese Science Bulletin2012,57,13:19
7基于轮廓特征及灰度相似度匹配的接触网绝缘子缺陷检测(英文)显示文摘目的:在图像缺陷样本少和一致性差的情况下,实现精确可靠的接触网绝缘子缺陷检测。创新点:提山一种基于瓷片轮廓特征及灰度相似度匹配的融合算法,实现了绝缘子瓷片的轮廓提取及绝缘子各瓷片的精准分离,并构建了基于瓷片间距和灰度相似度匹配的绝缘子缺陷检测模型。方法:1.采用同一个绝缘子相邻瓷片两两比较的方法进行缺陷检测,解决图像缺陷样本少和一致性差的问题。2.分两步进行检测(Fig.2):(1)基于水平梯度特征提取绝缘子各瓷片轮廓,并对瓷片轮廓内像素进行复原;(2)计算瓷片间距和灰度相似度,并与设置的阈值进行比较以区分正常绝缘子和缺陷绝缘子。结论:1.实验表明,基于轮廓特征及灰度相似度匹配的方法能够有效区分正常绝缘子和缺陷绝缘子。2.在图片数据集中,测试达到了99.50%的高召回率和91.71%的高精确度,满足了目前较高水平的接触网绝缘子缺陷检测的要求。Ping TAN Xu-feng LI Jin-mei XU Ji-en MA Fei-jie WANG Jin DING You-tong FANG Yong NING 2020Journal of Zhejiang University-Science A(Applied Physics & Engineering)2020,21,1:19
8Facile metagrating holograms with broadband and extreme angle tolerance显示文摘The emerging meta-holograms rely on arrays of intractable meta-atoms with various geometries and sizes for customized phase profiles that can precisely modulate the phase of a wavefront at an optimal incident angle for given wavelengths.The stringent and band-limited angle tolerance remains a fundamental obstacle for their practical application,in addition to high fabrication precision demands.Utilizing a different design principle,we determined that facile metagrating holograms based on extraordinary optical diffraction can allow the molding of arbitrary wavefronts with extreme angle tolerances(near-grazing incidence)in the visible–near-infrared regime.By modulating the displacements between uniformly sized meta-atoms rather than the geometrical parameters,the metagratings produce a robust detour phase profile that is irrespective of the wavelength or incident angle.The demonstration of high-fidelity meta-holograms and in-site polarization multiplexing significantly simplifies the metasurface design and lowers the fabrication demand,thereby opening new routes for flat optics with high performances and improved practicality.Zi-Lan Deng Junhong Deng Xin Zhuang Shuai Wang Tan Shi Guo Ping Wang Yao Wang Jian Xu Yaoyu Cao Xiaolei Wang Xing Cheng Guixin Li Xiangping Li 2018Light(Science & Applications)2018,7,1:17
9Footprint Mismatch of Cervical Disc Prostheses with Chinese Cervical Anatomic Dimensions显示文摘Liang Dong Ming-Sheng Tan Qin-Hua Yan Ping Yi Feng Yang Xiang-Sheng Tang Qing-Ying Hao 2015Chinese Medical Journal2015,,2:15
10Recent progress and application on seismic isolation energy dissipation and control for structures in China显示文摘China is a country where 100% of the territory is located in a seismic zone. Most of the strong earthquakes are over prediction. Most fatalities are caused by structural collapse. Earthquakes not only cause severe damage to structures, but can also damage non-structural elements on and inside of facilities. This can halt city life, and disrupt hospitals, airports, bridges, power plants, and other infrastructure. Designers need to use new techniques to protect structures and facilities inside. Isolation, energy dissipation and, control systems are more and more widely used in recent years in China. Currently, there are nearly 6,500 structures with isolation and about 3,000 structures with passive energy dissipation or hybrid control in China. The mitigation techniques are applied to structures like residential buildings, large or complex structures, bridges, underwater tunnels, historical or cultural relic sites, and industrial facilities, and are used for retrofitting of existed structures. This paper introduces design rules and some new and innovative devices for seismic isolation, energy dissipation and hybrid control for civil and industrial structures. This paper also discusses the development trends for seismic resistance, seismic isolation, passive and active control techniques for the future in China and in the world.Zhou Fulin Tan Ping 2018Earthquake Engineering and Engineering Vibration2018,17,1:15
11Geochemical Characteristics and Genesis of the Luxi-Xianrenzhang Diabase Dikes in Xiazhuang Uranium Orefield, Northern Guangdong Province显示文摘The Luxi-Xianrenzhang diabase dikes were emplaced into the eastern part of the Guidong composite granitoids in northern Guangdong Province at the end of the Early Cretaceous. They show tholeiitic features, enrichment in large ion lithophile elements, slight enrichment in light rare earth elements, depletion in Zr and Hf, and basically no depletion in Nb and Ta and no Eu anomaly. They are similar to intraplate basalt in terms of trace element characteristics. They have high εNd(t) values (3.6–4.9), initial 87Sr/86Sr ratios (0.70530–0.70641) and δ18O values and Dupal anomaly of Pb isotope compositions. Their Sr-Nd, Pb-Sr, Pb-Nd and Pb-Pb isotopes plot between DMM and EMII, with Pb similar to EMII, Nd relatively close to DMM and Sr in between. This profile suggests that the diabase dikes studied were derived from partial melting of a mantle source that had been subjected to metasomatism by fluids originated from a subduction zone under a tectonic environment of crustal extension and lithosphere thinning in the late Yanshanian.LING Hongfei SHEN Weizhou DENG Ping JIANG Shaoyong JIANG Yaohui YE Haimin PU Wei TAN Zhengzhong 2005Acta Geologica Sinica(English Edition)2005,79,4:13
12Natural Variations at TIG1 Encoding a TCP Tran scription Factor Contribute to Plant Architecture Domestication in Rice显示文摘The modification of plant architecture is a crucial target in rice domestication and modern genetic improvement.Although several genes regulating rice plant architecture have been characterized,the molecular mechanisms underlying rice plant architecture domestication remain largely unclear.Here we show that the inclined tiller growth in wild rice is controlled by a single dominant gene,TILLER INCLINED GROWTH 1 (T/Gf),which is located on chromosome 8 and encodes a TCP transcriptional activator.TIG1 is primarily expressed in the adaxial side of the tiller base,promotes cell elongation,and enlarges the tiller angle in wild rice.Variations in the TIG1 promoter of indica cultivars {tig1 allele) resulted in decreased expression of TIG1 in the adaxial side of tiller base and reduced cell length and tiller angle,leading to the transition from inclined tiller growth in wild rice to erect tiller growth during rice domestication.TIG1 positively regulates the expression of EXP A3,EXPB5,and SAUR39 to promote cell elongation and increase the tiller angle.Selective sweep analysis revealed that the tig1 allele was selected in indica cultivars by human beings.The cloning and characterization of TIG1 supports a new scenario of plant architecture evolution in rice.Weifeng Zhang Lubin Tan Hongying Sun Xinhui Zhao Fengxia Liu Hongwei Cai Yongcai Fu Xianyou Sun Ping Gu Zuofeng Zhu Chuanqing Sun 2019Molecular Plant2019,12,8:13
13Selection of oocytes for in vitro maturation by brilliant cresyl blue staining: a study using the mouse model显示文摘选择是最可能的发展的卵母细胞是关键的为在 vitrofertilization 并且动物克隆。染色的灿烂的 cresyl 蓝色(BCB ) 在大型家畜被用于卵母细胞选举,但是它的更宽的用途需要推进评估。我们再划分进染色的那些(BCB+) 和那些的老鼠卵母细胞未沾污(BCB-) 根据他们的 ooplasm BCBcoloration。染色质配置,积云房间 apoptosis,细胞质的成熟和发展胜任在 BCB+ 和 BCB- 卵母细胞之间被比较。BCB+ 卵母细胞的胜任上的卵母细胞直径,性成熟和 gonadotropin 刺激的效果也被分析。在thelarge尺寸和中等尺寸的组,BCB+卵母细胞更大并且显示出更多的包围 nucleoli ( SN )染色质配置和早闭锁的更高的频率,并且他们也获得了更好细胞质的成熟(象细胞内部的 GSH 水平和 mitochondrialdistribution 的模式坚定)并且在试管内成熟( IVM )以后的更高发展的潜力比BCB卵母细胞。当没与 PMSG 告知时,成年老鼠比 prepubertal 老鼠与更高的胜任生产了更多的 BCB+ 卵母细胞。PMSG priming 增加了比例和 BCB+oocytes 的发展力量。在大尺寸的组的 BCB+ 卵母细胞在 medium-sizegroup 比他们的对应物显示出更多的 SN 染色质配置,更好细胞质的成熟和更高发展的潜力。染色的 BCB 能为卵母细胞选择被用作一个有效方法,这被结束,但是 BCB+ 卵母细胞的胜任可以与卵母细胞直径,动物性成熟和 gonadotropin 刺激变化。总起来说,这里描述的标准的系列将更好允许在为更好的开发选择卵母细胞的选择。Yan-Guang Wu Yong Liu Ping Zhou Guo-Cheng Lan Dong Han De-Qiang Miao Jing-He Tan 2007Cell Research2007,17,8:11
14EXPERIMENTAL STUDY OF SCOUR RATE IN CONSOLIDATED COHESIVE SEDIMENT显示文摘The erosion process of a cohesive sediment after consolidation was studied experimentally in a closed conduit system.The test samples investigated in this study are mixtures of sand and clay with variable compositions and different consolidation times.The main concern of this study is the effects of the dry density of the consolidated sediment on scour rate.A scour rate formula is derived and further interpreted based on the experimental results.TAN Guang-ming JIANG Lei SHU Cai-wen LV Ping WANG Jun 2010Journal of Hydrodynamics2010,22,1:11
15Dynamic characteristics of a novel damped outrigger system显示文摘This paper presents exact analytical solutions for a novel damped outrigger system, in which viscous dampers are vertically installed between perimeter columns and the core of a high-rise building. An improved analytical model is developed by modeling the effect of the damped outrigger as a general rotational spring acting on a Bernoulli-Euler beam. The equivalent rotational spring stiffness incorporating the combined effects of dampers and axial stiffness of perimeter columns is derived. The dynamic stiffness method(DSM) is applied to formulate the governing equation of the damped outrigger system. The accuracy and effi ciency are verifi ed in comparison with those obtained from compatibility equations and boundary equations. Parametric analysis of three non-dimensional factors is conducted to evaluate the infl uences of various factors, such as the stiffness ratio of the core to the beam, position of the damped outrigger, and the installed damping coeffi cient. Results show that the modal damping ratio is signifi cantly infl uenced by the stiffness ratio of the core to the column, and is more sensitive to damping than the position of the damped outrigger. The proposed analytical model in combination with DSM can be extended to the study of structures with more outriggers.Tan Ping Fang Chuangjie Zhou Fulin 2014Earthquake Engineering and Engineering Vibration2014,13,2:11
16Neddylation of PTEN regulates its nuclear import and promotes tumor development显示文摘PTEN tumor suppressor opposes the PI3K/Akt signaling pathway in the cytoplasm and maintains chromosomal integrity in the nucleus.Nucleus–cytoplasm shuttling of PTEN is regulated by ubiquitylation,SUMOylation and phosphorylation,and nuclear PTEN has been proposed to exhibit tumor-suppressive functions.Here we show that PTEN is conjugated by Nedd8 under high glucose conditions,which induces PTEN nuclear import without effects on PTEN stability.PTEN neddylation is promoted by the XIAP ligase and removed by the NEDP1 deneddylase.We identify Lys197 and Lys402 as major neddylation sites on PTEN.Neddylated PTEN accumulates predominantly in the nucleus and promotes rather than suppresses cell proliferation and metabolism.The nuclear neddylated PTEN dephosphorylates the fatty acid synthase(FASN)protein,inhibits the TRIM21-mediated ubiquitylation and degradation of FASN,and then promotes de novo fatty acid synthesis.In human breast cancer tissues,neddylated PTEN correlates with tumor progression and poor prognosis.Therefore,we demonstrate a previously unidentified pool of nuclear PTEN in the Nedd8-conjugated form and an unexpected tumor-promoting role of neddylated PTEN.Ping Xie Zhiqiang Peng Yujiao Chen Hongchang Li Mengge Du Yawen Tan Xin Zhang Zhe Lu Chun-Ping Cui Cui Hua Liu Fuchu He Lingqiang Zhang 2021Cell Research2021,31,3:11
17Design of precision variable-rate spray system for unmanned aerial vehicle using automatic control method显示文摘In order to reduce the use of chemical pesticides in crop plant protection and improve the utilization efficiency of pesticides,it is necessary to study advanced application machinery and application techniques.The use of unmanned aerial vehicle(UAV)for pesticide spraying has the characteristics of less application,strong penetrability,wide applicability and flexible operation scheduling,and has gradually become one of the important development directions in the field of aviation plant protection.However,the operation process of the UAV is often affected by meteorological factors and human manipulation,resulting in poor actual operation with inaccurate spray volume and uneven application.Therefore,to improve the stability and uniformity of the application of the plant protection UAV under variable operating conditions,in this paper a real-time control method was proposed for the application flow rate,and a precision variable-rate spray system was designed based on single-chip microcomputer and micro diaphragm pump that can controls the flow rate of the pump in real time with the changes of the operating state.The response s-peed of the variable-rate spray system was tested.The average control response time of the system was 0.18 s,and the average stability time of the pump flow change was 0.75 s.The test results showed that the system has a quick response to the working state and the adjustment of the target flow of the pump can be quickly completed to realize the variable-rate spray function.The research results can provide a reference for the practical application of plant protection UAV variable-rate spray system.Qi Lian Feng Tan Xiaoming Fu Ping Zhang Xin Liu Wei Zhang 2019International Journal of Agricultural and Biological Engineering2019,12,2:10
18Terahertz radiation sources based on free electron lasers and their applications显示文摘The tunability,high power and flexible picoseconds-pulse time structure of terahertz(THz)radiation make the THz free-electron laser(FEL)a very attractive THz source of coherent radiation.This paper focuses on the development and perspectives of THz radiation sources based on the FEL.The principles of the low gain THz FEL oscillator,the SASE THz FEL amplifier and the supperradiant THz FEL are reviewed briefly,and the key technologies of THz FEL,such as injector,accelerator,undulator and optical cavity,are discussed,respectively.The current status of and future prospects for THz radiation sources based on the FEL are emphasized in this paper.Recent research and development have shown bright future in free-electron laser(FEL)THz radiation sources.The potential applications can be carried out in the field of imaging,material research,biology medicine,communication,diagnostics and many others.TAN Ping HUANG Jiang LIU KaiFeng XIONG YongQian FAN MingWu 2012Science China(Information Sciences)2012,55,1:10
19Facile synthesis and antitumor activity of novel 2-trifluoromethylthieno[2,3-d]pyrimidine derivatives显示文摘A series of novel 2-trifluoromethylthieno[2,3-d]pyrimidine derivatives were synthesized by a facile three-step procedure that afforded advantages of mild reaction conditions, simple protocol and good yields. The structures of the final compounds were confirmed by IR, NMR, EI-MS, elemental analysis, and X-ray diffraction. Preliminary bioassay results showed that some of the analogs exhibit excellent antitumor activity against MCF-7 and HepG2, especially compounds 3a, 3b, 3e and 3h exhibited higher activity than the positive control gefitinib.Xin-Jian Song Ping Yang Hui Gao Yan Wang Xing-Gao Dong Xiao-Hong Tan 2014Chinese Chemical Letters2014,25,7:10
20Association Between Serum Uric Acid and Prevalence of Type 2 Diabetes Diagnosed using HbA1c Criteria Among Chinese Adults in Qingdao,China显示文摘Objective To determine whether elevated serum uric acid(UA)levels are associated with type 2 diabetes diagnosed using Hb A1 c levels among Chinese adults.Methods We conducted two population-based cross-sectional studies in Qingdao in China in 2006 and 2009.A total of 6894(39.4% men)subjects aged 35-74 years were included in the data analysis.Newly diagnosed diabetes was defined as Hb A1 c level of ≥6.5%,and prediabetes was classified as Hb A1 c level between 5.7% and 6.4% according to the International Diabetes Federation criteria.Multivariate logistic regression was employed to assess the association between UA and prevalence of type 2 diabetes defined using Glycated hemoglobin A1c(Hb A1 c levels.Results Subjects with prediabetes had higher UA levels than those with normal glucose tolerance,newly diagnosed diabetes,and known diabetes,with corresponding values of 325.1(82.5)μmol/L,310.9(84.2)μmol/L,291.3(81.7)μmol/L,305.2(83.6)μmol/L,respectively(P<0.001 for all comparisons).Binary logistic regression analysis showed that UA was a possible predictor for the prevalence of type 2 diabetes diagnosed using Hb A1 c levels,and the second quartile of UA levels had a higher odds ratio(OR:4.088;95% CI:2.900-5.765)for Hb A1 c than the other quartiles after adjusting for age,body mass index,sex,marital status,education,income,alcohol consumption,smoking,and cardiometabolic parameters.Conclusion Serum UA is significantly associated with type 2 diabetes diagnosed using Hb A1 c levels,independent of other cardiometabolic parameters.XUE Bai TAN Ji Bin NING Feng SUN Jian Ping ZHANG Ke Yi LIU Li WANG Shao Jie ZHANG Dong Feng QIAO Qing PANG Zeng Chang 2015Biomedical and Environmental Sciences2015,28,12:9
返回顶部 每页显示:
共18页 首页 上一页 第1页 下一页 末页 /18 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费