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533篇 您的检索式:作者名="LU Miao"
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1Geomorphologic evidence of phased uplift of the northeastern Qinghai-Tibet Plateau since 14 million years ago显示文摘A typical sequence of fluvial terraces and aeolian deposits overlying these terraces were multidisciplinary investigated. New evidences for uplift process of the northeastern Qinghai-Tibetan Plateau in the past 14 million years were obtained. At least 11 river terraces along Huangshui, the first-class tributary of Yellow River, at the Xining-Huzhu region are identified. While the first one (T1) is classified as an accumulation terrace, the others are all basement river terraces, which consist of the Tertiary sandstone and siltstone bedrock, fluvial gravel and pebbles and the overlying aeolian loess-Red Clay deposit. Samples from the aeolian deposits were examined for paleomagnetic stratigraphic reconstruction (1030 samples), luminescence dating (16 samples), magnetic susceptibility and grain-size distribution (more than 4000 samples). The luminescence dating and stratigraphic correlation suggest that terraces of T11, T10,T8, T7, T3, T2, T1 were formed at 14, 11.3, 1.55, 1.2, 0.15, 0.07 and 0.01 million years ago, respectively. Sedimentological analysis and geomorphological observation indicate that formation and evolution of these terraces were mainly driven by tectonic uplift. Therefore, the terrace sequence provides an ideal geological record of the uplift process of the northeastern Qinghai-Tibet during the past 14 million years, and the timings of the terraces formation are regarded as the timings of tectonic uplift. The significant uplifting events took place at 14, 11.3, 1.2 and 0.15 million years ago, respectively. The fluvial incision at the Xining-Huzhu region is less than 100 m during a period of ~12 million years in the Miocene era (between the T11 and T9), while the Huangshui River had incised 432 m during the past 1.2 million years (from T7 to the present floodplain). The river incision process clearly demonstrates that accelerated rising of the northeastern Qinghai-Tibet Plateau during the late Cenozoic, and provides new evidence of previous thoughts. There was a significant readjustment of the fluvial catchment during 1.55-1.2 million years ago: before this time, the paleoriver flowed to southwest. After this time the Huangshui River flows to southeast. A tectonic movement dominates reorganization of this fluvial system.LU Huayu1, WANG Xiaoyong1, AN Zhisheng1, MIAO Xiaodong1, ZHU Rixiang3, MA Haizhou2, LI Zhen4, TAN Hongbing2 & WANG Xianyan1 1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075 China 2. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences. Xining 810008, China 3. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 4. Department of Geography, Qinghai Normal University, Xining 810008, China 2004Science China Earth Sciences2004,47,9:51
2Downregulation of survivin by RNAi inhibits growth of human gastric carcinoma cells显示文摘AIM: To investigate the inhibitory effect of a specific small survivin interfering RNA (siRNA) on cell proliferation and the expression of survivin in human gastric carcinoma cell line SGC-7901. METHODS: To knockdown survivin expression, a small interfering RNA targeting against survivin was synthesized and transfected into SGC-7901 cells with lipofectamineTM2000. The downregulation of survivin expression at both mRNA and protein levels were detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blot analysis. Cell proliferation inhibition rates were determined by methyl thiazolyl tetrazolium (MTT) assay. The effect of survivin siRNA on cell cycle distribution and cell apoptosis was determined by flow cytometry (FCM). RESULTS: RNA interference could efficiently suppress the survivin expression in SGC-7901 cells. At 48 h after transfection, the expression inhibition rate was 44.52% at mRNA level detected by RT-PCR and 40.17% at protein level by Western blot analysis. Downregulation of survivin resulted in significant inhibition of tumor cell growth in vitro. The cell proliferation inhibition rates at 24, 48 and 72 h after survivin siRNA and non-siliencing siRNA transfection, were 34.06%, 47.61% and 40.36%, respectively. The apoptosis rate was 3.56% and the number of cells was increased in G0/G1 phase from 38.2% to 88.6%, and decreased in S and G2/M phase at 48 h after transfection. CONCLUSION: Downregulation of survivin results in significant inhibition of tumor growth in vitro. The inhibition of survivin expression can induce apoptosis of SGC-7901 cells. The use of survivin siRNA deserves further investigation as a novel approach to cancer therapy.Guo-Ying Miao Qi-Ming Lu Xiu-Lan Zhang 2007World Journal of Gastroenterology2007,13,8:50
3A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11  916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou 2016Journal of Systematics and Evolution2016,54,6:44
4Postoperative adjuvant antiviral therapy for hepatitis B/C virus-related hepatocellular carcinoma:A meta-analysis显示文摘AIM:To investigate the impact of postoperative antiviral treatment on tumor recurrence and survival of patients with chronic hepatitis B virus(HBV) or hepatitis C virus(HCV) infection-related primary hepatocellular carcinoma(HCC) after curative therapy.METHODS:We performed a meta-analysis of randomized and non-randomized control trials from electronic search and manual search.The fixed effect model of Mantel-Haenszel method and the random effect model of Der Simonian and Laird method were used for homogeneous and heterogeneous studies,respectively.Seven HCV-related studies,three HBV-related studies and three studies on HBV or HCV-related HCC were identified.RESULTS:A total of 1224 patients were included in this analysis.The estimated odds ratios(OR) for the 1-,2-,3-and 5-year recurrence were 0.54 [15.4% vs 24.1%,95% confidence interval(CI):0.32-0.89,P=0.02],0.42(36.9% vs 58.0%,95% CI:0.19-0.90,P=0.03),0.37(47.9% vs 63.8%,95% CI:0.19-0.71,P=0.003),and 0.32(66.7% vs 74.3%,95% CI:0.15-0.66,P=0.002),respectively;and the OR for the 1-,2-,3-,5-and 7-year mortality were 0.23(1.2% vs 9.1%,95% CI:0.07-0.71,P=0.01),0.31(6.4% vs 22.1%,95% CI:0.12-0.79,P=0.01),0.43(12.7% vs 20.8%,95% CI:0.21-0.89,P=0.02),0.42(25.1% vs 42.0%,95% CI:0.27-0.66,P=0.0002) and 0.28(31.9% vs 52.2%,95% CI:0.13-0.59,P=0.0008).CONCLUSION:This meta-analysis indicates the postoperative antiviral therapy,interferon in particular,may serve as a favorable alternative to reduce recurrence and mortality in patients with HBV/HCV related HCCs.Miao, Ruo-Yu Zhao, Hai-Tao Yang, Hua-Yu Mao, Yi-Lei Lu, Xin Zhao, Yi Liu, Chang-Ning Zhong, Shou-Xian Sang, Xin-Ting Huang, Jie-Fu 2010World Journal of Gastroenterology2010,16,23:26
5Molecular network-based analysis of Guizhi- Shaoyao-Zhimu decoction, a TCM herbal formula, for treatment of diabetic peripheral neuropathy显示文摘目的: Guizhi-Shaoyao-Zhimu 煎(GSZ ) ,繁体中文药(TCM ) 草药的公式,被显示出在糖尿病的外部神经病(DPN ) 的治疗有效。在这研究,网络分析被执行译解在 DPN 的处理的 GSZ 的分子的机制。Ning ZHAO Jian LI Li LI Xu-yan NIU Miao JIANG Xiao-juan HE Zhao-xiang BIAN Ge ZHANG Ai-ping LU 2015Acta Pharmacologica Sinica2015,36,6:21
6Antimony(V) removal from water by hydrated ferric oxides supported by calcite sand and polymeric anion exchanger显示文摘We fabricated and characterized two hybrid adsorbents originated from hydrated ferric oxides(HFOs) using a polymeric anion exchanger D201 and calcite as host. The resultant adsorbents(denoted as HFO-201 and IOCCS) were employed for Sb(V) removal from water. Increasing solution pH from 3 to 9 apparently weakened Sb(V) removal by both composites, while increasing temperature from 293 to 313 K only improved Sb(V) uptake by IOCCS. HFO-201 exhibited much higher capacity for Sb(V) than for IOCCS in the absence of other anions in solution. Increasing ionic strength from 0.01 to 0.1 mol/L NaNO3would result in a significant drop of the capacity of HFO-201 in the studied pH ranges; however, negligible effect was observed for IOCCS under similar conditions. Similarly, the competing chloride and sulfate pose more negative effect on Sb(V) adsorption by HFO-201 than by IOCCS, and the presence of silicate greatly decreased their adsorption simultaneously, while calcium ions were found to promote the adsorption of both adsorbents. XPS analysis further demonstrated that preferable Sb(V) adsorption by both hybrids was attributed to the inner sphere complexation of Sb(V) and HFO, and Ca(II) induced adsorption enhancement possibly resulted from the formation of HFO-Ca-Sb complexes. Column adsorption runs proved that Sb(V) in the synthetic water could be effectively removed from 30 μg/L to below 5 μg/L(the drinking water standard regulated by China), and the effective treatable volume of IOCCS was around 6 times as that of HFO-201, implying that HFO coatings onto calcite might be a more effective approach than immobilization inside D201.Yangyang Miao Feichao Han Bingcai Pan Yingjie Niu Guangze Nie Lu Lv 2014Journal of Environmental Sciences2014,26,2:20
7Effect of L-NAME on nitric oxide and gastrointestinal motility alterations in cirrhotic rats显示文摘AIM: To invsstigare the effect of L-NAME on nitric oxide andgastriubtestubal motility alterations in cirrhotic ratsMETHODS: Rats with cirrhosis induced by carbontetrachloride were randomly divided into two groups, one( n= 13) receiving 0. 5 mg@ kg-1 per clay of NG-nitro-L-argininemethyl ester (L-NAME), a nitric oxide synthase inhibitor,for 10 days, whereas the other group ( n = 13) and control( n = 10) rats were administrated the same volume of 9 g@ L-1saline.Half gastric emptying time and 2 h residual rate weremeasured by SPECT, using 99m Tc-DTPA-labeled bariumsuifate as test meal. Gastrointestinal transition time wasrecorded simultaneously. Serum concentration of nitrcoxide (NO) was determined by the kinetic cadmiunreduction and colorimetric methods. ImmunohistochemicalSABC method was used to observe the expression anddistribution of three types of nitric oxide synthase (NOS)isoforms in the mt gastrointestinal tract. Western blot wasused to detect expression of gastrointestinal NOS isoforms.RESULTS: Half gastric emptying time and trans-gastrointestinal time were significantly prolonged( 124.0 ± 26.4min; 33.7± 8.9min;72.1 ± 15.3 min; P<0.01), (12.4±0.5h; 9.5±0.3 h; 8.2±0.8 h; P<0.01), 2h residual rate wasraised in cirrhotic rots than in controls and cirrhotic ratstreated with L-NAME(54.9± 7.6 % ,13.7 ± 3.2 %, 34.9± 10.3%, P< 0.01). Serum concentration of NO was significantlyincreased in cirrhotic rots than in the other groups (8.20 ± 2.48)μmol@L-1, (5.94± 1.07) μmol@L-1 ,and control (5.66± 1.60) tμmol@L-1, P< 0.01. NOS staining intensities which weremainly located in the gastrointestinal tissues were markedlylower in cirrhotic rats than in the controls and cirrhotic ratsafter treated with L- NAME.CONCLUSION: Gastrointestinal motility was remarkablyinhibited in cirrhotic rats, which could he alleviated by L-NAME. Nitric oxide may play an important role in theinhibition of gastrointestinal motility in cirrhotic rats.Xin Wang Zong-You Zhang Mei Lan Ji-Yan Miao Xue-Gang Guo Yong-Quan Shi Yan-Qiu Zhao Jie Ding Kai-Cun Wu Dai-Ming Fan,Institute of Digestive disease,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China Yue-Xia Zhong,Emergency Department,Tangdu Hospital,Fourth Military Medical University,Xi’an 710038,Shaanxi Province,China Ju Lu,Class EE 87,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China Bo-Rong Pan,Oncology Center,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China 2002World Journal of Gastroenterology2002,8,2:19
8Gene therapy for human colorectal carcinoma using human CEA promoter controlled bacterial ADP-ribosylating toxin genes:PEA and DTA gene transfer显示文摘INTRODUCTIONAmajorrequirementforinvivogenetherapyforcanceristotargetthetherapeuticgeneexpresiontomalignanttissuesbyselectingp...CAO Guang Wen 1, QI Zhong Tian 1, PAN Xin 1, ZHANG Xiao Qin 1, MIAO Xiao Hui 1, FENG Yan 1, LU Xin Hua 1, Shigeki Kuriyama 2 and DU Ping 1 1998World Journal of Gastroenterology1998,4,5:18
9Formaldehyde stress显示文摘Formaldehyde,one of the most toxic organic compounds,is produced and processed in human cells.The level of human endogenous formaldehyde is maintained at a low concentration(0.01-0.08 mmol L-1 in blood) under physiological conditions,but the concentration increases during ageing(over 65 years old).Clinical trials have shown that urine formaldehyde concentrations are significantly different between elderly Alzheimer's patients(n=91) and normal elderly volunteers(n=38)(P<0.001).Abnormally high levels of intrinsic formaldehyde lead to dysfunction in cognition such as learning decline and memory loss.Excess extracellular and intracellular formaldehyde could induce metabolic response and abnormal modifications of cellular proteins such as hydroxymethylation and hyperphosphorylation,protein misfolding,nuclear translocation and even cell death.This cellular response called formaldehyde stress is dependent upon the concentration of formaldehyde.Chronic impairments of the brain resulted from formaldehyde stress could be one of the mechanisms involved in the process of senile dementia during ageing.HE RongQiao1*,LU Jing1,2 & MIAO JunYe1,2 1State Key Laboratory of Brain and Cognitive Sciences,Institute of Biophysics,Chinese Academy of Sciences,Beijing 100101,China 2Graduate University of Chinese Academy of Sciences,Beijing 100049,China 2010Science China(Life Sciences)2010,53,12:16
10A comparative analysis of five global cropland datasets in China显示文摘Accurate information of cropland area and spatial location is critical for studies of national food security, global environmental change, terrestrial ecosystem geophysics and the geochemical cycle. In this paper, we compared five global cropland datasets in circa 2010 of China from in terms of cropland area and spatial location, including Global Land30, FROM-GLC, Glob Cover, MODIS Collection 5, and MODIS Cropland. The results showed that the accuracies of cropland area and spatial location of Globe Land30 were higher than the other four products. The cropland areas of the five products varied in most of the provinces. Compared with the statistical data, the best goodness of fit was obtained using Globe Land30, followed by MODIS Collection 5 and FROM-GLC, with MODIS Cropland and Glob Cover having the poorer accuracies. Regarding the spatial location of cropland, Globe Land30 achieved the best accuracy, followed by FROM-GLC and MODIS Collection 5, with Glob Cover and MODIS Cropland having the poorer accuracies. In addition, the spatial agreement of the five datasets was reduced from agricultural production area to pastoral area and significantly affected by elevation and slope factors. Although the spatial resolution of MODIS Collection 5 was the lowest, accuracies of the cropland area and spatial location were better than those of Glob Cover and MODIS Cropland. Therefore, high spatial resolution remote sensing images can help to improve the accuracy of the dataset during land cover mapping, while it is also important to select a suitable classification method. Furthermore, in northwestern and southeastern China, spectral mixing pixels are universal because of the complicated landscape and fragmentized topography and result in uncertainty and poor consistency when using the five products. Therefore, these regions require additional attention in future cropland mapping studies.LU Miao WU WenBin ZHANG Li LIAO AnPing PENG Shu TANG HuaJun 2016Science China(Information Sciences)2016,59,12:15
11Research on power electronic transformer applied in AC/DC hybrid distribution networks显示文摘The AC/DC hybrid distribution network is one of the trends in distribution network development, which poses great challenges to the traditional distribution transformer. In this paper, a new topology suitable for AC/DC hybrid distribution network is put forward according to the demands of power grid, with advantages of accepting DG and DC loads, while clearing DC fault by blocking the clamping double sub-module(CDSM) of input stage. Then, this paper shows the typical structure of AC/DC distribution network that is hand in hand. Based on the new topology, this paper designs the control and modulation strategies of each stage, where the outer loop controller of input stage is emphasized for its twocontrol mode. At last, the rationality of new topology and the validity of control strategies are verified by the steady and dynamic state simulation. At the same time, the simulation results highlight the role of PET in energy regulation.Yiqun Miao Jieying Song Haijun Liu Zhengang Lu Shufan Chen Chun Ding Tianzhi Cao Linhai Cai Yuzhong Gong 2018Global Energy Interconnection2018,1,3:14
12Species identification of poisonous medicinal plant using DNA barcoding显示文摘The aim is to select a universal DNA barcode for identifying all poisonous medicinal plants in Chinese pharmacopoeia and their poisonous related species or adulterants. We chose 4 commonly used regions as candidate DNA barcodes(ITS2, psb A-trn H,matK and rbc L) and compared their identification efficiency in 106 species from 27 families and 65 genera totally. Data analysis was performed including the information of sequence alignment, inter/intra-specific genetic distance and data distribution, identification efficiency and the situation of Neighbor-Joining(NJ) phylogenetic trees. We found ITS2 sequence region had high variation, stable genetic distance and identification efficiency relatively. The topological structure of NJ phylogenetic tree showed monophyletic. Our findings show that ITS2 can be applied as a universal barcode for identifying poisonous medicinal plants in Chinese pharmacopoeia and their poisonous related species or adulterants.LIU Miao LI Xi-Wen LIAO Bao-Sheng LUO Lu REN Yue-Ying 2019Chinese Journal of Natural Medicines2019,17,8:13
13A randomized, multicenter controlled trial to compare the efficacy of recombinant human parathyroid hormone (1-34) with elcatonin in postmenopausal women with osteoporosis in China显示文摘背景 Recombinant 人的甲状旁腺的荷尔蒙(1-34 )(rhPTH (注射给的 1 -34)) 一新生物产品的第七班药,它被采用基因再结合准备技术。rhPTH (1 -34) 主要被用来对待骨质疏松症,特别为绝经后的 women.This,学习为在中国的 11 个城市的区域与骨质疏松症对待绝经后的女人把 rhPTH (1-34 ) 的临床的功效和安全与 elcatonin 作比较。有骨质疏松症的 205 个女人被注册在的方法一 6 月, multicenter,使随机化的、控制学习。他们被使随机化收到任何一个 rhPTH (1-34 ) 20 ug (200 U ) 日报或 elcatonin 20 U 周刊。腰部的脊骨(L1-4 ) 和大腿骨的颈骨头矿物质密度(BMD ) ,以及骨头周转的生物化学的标记被测量。不利事件是增加的 recorded.Results rhPTH (1-34 ) 腰部的 BMD 非常显著地在 3 个月和 6 个月做了 elcatonin (2.38% 对 0.59% , P < 0.05;5.51% 对 1.55% , P < 0.01 ) ,但是没有在在大腿骨的颈的这二个组的 BMD 的重要增加。在 rhPTH 的骨头标记有更大的吝啬的增加(1 个 -34) 组比在在 3 个月和 6 个月的 elcatonin 组(浆液骨头特定的碱的磷酸酶(BSAP )36.79% 对 0.31% ;92.42% 对 -0.17% ;尿 N-telopeptide/creatinine (NTX/Cr )48.91% 对 -5.32% ;68.82% 对 -10.86%) 。处理很好被容忍,没有重要差别,在任何不利事件和任何严肃的不利事件的比例在二个组之间检测(67.0% 对 59.0% ;0 对 0 ).Conclusions rhPTH (1-34 ) 比 elcatonin 在骨头形成上有更积极的效果,由腰部的 BMD 和骨头形成标记的更大的增长出现与在肝的仅仅温和的不利事件和没有重要变化,肾或 hematological 索引。ZHANG Xiu-zhen WANG Bo YANG Jun XUAN Miao SONG Li-ge LI Hong GUO Xiao-hui LU Xiao-feng XUE Qing-yun YANG Gang-yi JI Qiu-he SHEN Jie LIU Zhi-min LI Cheng-jiang WU Tian-feng TONG Xiao-cui JIA Yuan 2009Chinese Medical Journal2009,,24:12
14Distribution of Major Pathogens from Sputum and Bronchoalveolar Lavage Fluid in Patients with Noncystic Fibrosis Bronchiectasis: A Systematic Review显示文摘Xia-Yi Miao Xiao-Bin Ji Hai-Wen Lu Jia-Wei Yang Jin-Fu Xu 2015Chinese Medical Journal2015,,20:12
15Relations between sedimentary sequence and paleoclimatic changes during last 200 ka in the southern South China Sea显示文摘Core NS-93-5 was taken from the mild slope terrace of the southern South China Sea (SCS), which has preserved the steadiness depositional record of the normal marine environment since late Quaternary. Sedimentary sequence and oxygen isotopic stratigraphy of high resolution in the near 200 ka of the southern SCS has been established. By the comparative analysis with GISP2’s ice core, the depositional record of D/O’s events 1-21 and Heinrich’s events H1-H6 in the southern SCS that reflected the quick climate change in short time scale since the last interglacial stage is revealed, which indicates that in the last 200 ka in the southern SCS and the Arctic area there was tele-connection of paleoclimate and the unstability of the Western Pacific Warm Pool. This note shows that the sedimentary layers order of this sea area classified by color identification and by oxygen isotope stratum has the very good corresponding relation. The color feature of sediment changes along with the climate and the formerMuhong Chen Xia Tu Fan Zheng Wen Yan Xianzan Tang Jun Lu Baogui Wang Miao’an Lu 2000Chinese Science Bulletin2000,45,14:12
16Mapping regional cropping patterns by using GF-1 WFV sensor data显示文摘The successful launched Gaofen satellite no. 1 wide field-of-view(GF-1 WFV) camera is characterized by its high spatial resolution and may provide some potential for regional crop mapping. This study,taking the Bei'an City,Northeast China as the study area,aims to investigate the potential of GF-1 WFV images for crop identification and explore how to fully use its spectral,textural and temporal information to improve classification accuracy. In doing so,an object-based and Random Forest(RF) algorithm was used for crop mapping. The results showed that classification based on an optimized single temporal GF-1 image can achieve an overall accuracy of about 83%,and the addition of textural features can improve the accuracy by 8.14%. Moreover,the multi-temporal GF-1 data can produce a classification map of crops with an overall accuracy of 93.08% and the introduction of textural variables into multi-temporal GF-1 data can only increase the accuracy by about 1%,which suggests the importance of temporal information of GF-1 for crop mapping in comparison with single temporal data. By comparing classification results of GF-1 data with different feature inputs,it is concluded that GF-1 WFV data in general can meet the mapping efficiency and accuracy requirements of regional crop. But given the unique spectral characteristics of the GF-1 WFV imagery,the use of textual and temporal information is needed to yield a satisfactory accuracy.SONG Qian ZHOU Qing-bo WU Wen-bin HU Qiong LU Miao LIU Shu-bin 2017Journal of Integrative Agriculture2017,16,2:12
17Chiral selective effects of doxazosin enantiomers on blood pressure and urinary bladder pressure in anesthetized rats显示文摘瞄准:到学习 chiral,血压和膀胱上的 doxazosin enantiomers 的选择效果在 anesthetized 迫使老鼠。方法:在 anesthetized 老鼠,颈动脉血压,心的左心室压和膀胱,压力被记录。结果:在 0.25 , 2.5 , 25 ,和 250 nmol/kg iv 的 S-doxazosin 的管理在血压生产了剂量依赖者减少,但是它的压板效果比由 R-doxazosin 和 racemic-doxazosin ( rac-doxazosin )导致了显著地弱,并且 ED ( 30 )珍视(在吝啬的动脉压生产30%减少)分别地 R-doxazosin , rac-doxazosin 和 S-doxazosin 是 15.64 , 45.93 ,和 128.81 。在 anesthetized 老鼠累积地管理的 Rac-doxazosin 和它的 enantiomers 在左室的收缩压和 +/-dp/dt (最大) 导致了剂量依赖者减少,并且 3 个代理人的力量顺序是 R-doxazosin > rac-doxazosin > S-doxazosin。Rac-doxazosin 和它的 enantiomers 减少了膀胱的频尿压力 dose-dependently 不在 2.5, 25,和 250 nmol/kg,和在 3 个代理人之中的禁止的力量是显著地不同的。结论:S-doxazosin 减少颈动脉血压和不到 R-doxazosin 和 rac-doxazosin,而是它膀胱的频尿上的效果迫使的心的左心室压类似于 R-doxazosin 和 rac-doxazosin,显示那 S-doxazosin 在 anesthetized 老鼠有在心血管系统和泌尿系统之间的 chiral 选择。Shi-ping MA Lei-ming REN Ding ZHAO Zhong-ning ZHU Miao WANG Hai-gang LU Li-hua DUAN 2006Acta Pharmacologica Sinica2006,27,11:11
18Surgical operation and re-operation for hepatocellular carcinoma with bile duct thrombosis显示文摘很少报告评估了的背景为在为有这研究的 .The 目的是调查起始的外科的功效的胆汁管血栓( BDT )的 hepatocellular 癌( HCC )的起始的外科以后的恶化的重新操作和为有 BDT 的 HCC 的随后的重新操作的功效,并且他们 prognosis.Methods 上的效果包括在我们的医院里经历了在 1998 和 2008 之间的激进的 hepatectomy 的有 BDT 的 28 个病人,有 HCC 的 880 个病人的临床的数据是 BDT 的 reviewed.TheWANG Ya-dong XUE Huan-zhou JIANG Qing-feng SHEN Quan WANG Lian-cai ZHANG Xiao LU Bing YU Miao LI Ke 2010Chinese Medical Journal2010,,16:11
19Propofol attenuates TNF-α-induced MMP-9 expression in human cerebral microvascular endothelial cells by inhibiting Ca^2+/CAMKⅡ/ERK/NF-kB signaling pathway显示文摘Metalloproteinase 9(MMP-9)is able to degrade collagen Ⅳ,an important component of blood-brain barrier(BBB).Expression of MMPs,especially MMP-9,correlates with BBB disruption during central nervous system inflammation.Propofol has been reported to have anti-inflammation effects.In this study,we investigated the effects of propofol on TNF-α-induced MMP-9 expression in human cerebral microvascular endothelial cells(hCMEC/D3 cells)and explored the underlying mechanisms.The hCMEC/D3 cells were treated with propofol(25 pM),followed by TNF-a(25 ng/mL).We showed that TNF-a treatment markedly increased MMP-9 expression and decreased collagen Ⅳ expression in hCMEC/D3 cells,which was blocked by pretreatment with propofol.TNF-ainduced downregulation of collagen Ⅳ was also reversed by MMP-9 knockdown with siRNA.We revealed that TNF-αupregulated MMP-9 expression in hCMEC/D3 cells through activation of Ca^2+/CAMK Ⅱ/ERK/NF-kB signaling pathway;co-treatment with inhibitors of CaMK Ⅱ(KN93),ERK(LY3214996),NF-kB(PDTC)or Ca^2+chelator(BAPTA-AM)abrogated the effect of TNF-αon MMP-9 expression.We further established an in vitro BBB model by co-culturing of hCMEC/D3 cells and human astrocytes for 6 days and measuring frans-endothelial electrical resistance(TEER)to reflect the BBB permeability.TNF-αtreatment markedly decreased TEER value,which was attenuated by pretreatment with propofol(25 mM)or MMP-9 knockdown with siRNA.In conclusion,propofol inhibits TNF-a-induced MMP-9 expression in hCMEC/D3 cells via repressing the Ca^2+/CAMK Ⅱ/ERK/NF-kB signaling pathway.TNF-aimpaired BBB integrity could be reversed by propofol,and propofol attenuates the inhibitory effect of TNF-a on collagen Ⅳ.Xiao-wei Ding Xia Sun Xue-fang Shen Yan Lu Jia-qiang Wang Zhi-rong Sun Chang-hong Miao Jia-wei Chen 2019Acta Pharmacologica Sinica2019,40,10:11
20Effect of ultrasonic treatment and Sr addition on microstructure of Al-20%Si alloy显示文摘Many investigations have revealed that transition of melt structure can effectively infl uence the fi nal solidifi cation microstructures.In this study,ultrasonic treatment was applied to Al-20%Si melt and Sr-modif ied Al-20%Si melt at 720℃(i.e.above liquidus of about 690℃)for 60 s,and then the melt was quickly quenched to room temperature.Experimental results show that ultrasonic treatment can ref ine the primary Si phase andα-Al of Al-20%Si alloy;strontium can make the morphology of Si phase spheroidized and refi ned as Sr addition changes the faceted growth characteristic of Si phase;however,the ref inement effect of ultrasonic treatment on the primary Si phase andα-Al is weakened by Sr addition.Miao Long Lu Yiping Zhang Yubo Fu Ying Li Tingju 2013China Foundry2013,10,4:10
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