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70篇 您的检索式:作者名="Cheng Hongmei"
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1Timing of the Wudangshan, Yaolinghe volcanic sequences and mafic sills in South Qinling: U-Pb zircon geochronology and tectonic implication显示文摘The Wudangshan, Yaolinghe volcanic-sedimentary sequences and doleritic-gabbroic sills comprise the largest exposed Precambrian basement in South Qinling. Zircons separated from 5 volcanic-pyroclas- tic samples of the Wudangshan Group, 2 volcanic samples of the Yaolinghe Group and one sample for the mafic sills were used for U-Pb dating by laser ablation-inductively coupled plasma mass spec- trometry (LA-ICPMS). The results reveal that the Wudangshan volcanic sequence was formed at (755±3) Ma (a weighted mean from the 5 samples, MSWD=0.47), whereas the Yaolinghe volcanic suite and the mafic sill were crystallized at (685±5) (2 samples, MSWD=0.36) and (679±3) Ma (MSWD=1.6), respectively, which are equal to each other within analysis errors. These ages are markedly younger than those previously documented for the rocks. The newly obtained ages for the Wudangshan and Yaolinghe Groups are identical to those of the bottom Liantuo and slightly older than those of the Nantuo Forma- tions, respectively, lower strata of the Nanhua (middle to late Neoproterozoic) stratotype section in eastern Three Gorges, Yangtze craton. A range of inherited magmatic zircons was recognized with ages of 830 to 780 Ma, which are typical of Neoprotzrozoic magmatisms recorded along the margins and interior of the Yangtze craton. Thus, there is Neoproterozoic basement comprising 830―780 Ma igne- ous suites in South Qinling; the inherited zircons were detrital sediments derived from the northern margin of the Yangtze craton. Accordingly, it is suggested that the South Qinling is a segment of the Yangtze craton before the Qinling Orogeny.LING WenLi REN BangFang DUAN RuiChun LIU XiaoMing MAO XinWu PENG LianHong LIU ZaoXue CHENG JianPing YANG HongMei 2008Chinese Science Bulletin2008,53,14:44
2U-Pb dating of detrital zircons from the Wudangshan Group in the South Qinling and its geological significance显示文摘U-Pb dating was made by the LA-ICP-MS method for detrital zircons from the Wudangshan volcanic-sedimentary succession in the South Qinling. Samples comprise quartz sandstones of the Wudangshan Group collected from the base of the Yangping For-mation and an upper layer of the Shuangtai Formation overlain its volcanic sequence, and two river-sand collections from the drainage systems cutting across the two formations, respectively. The results show that the Yangping detrital zircons are domi-nated by 830–780 Ma grains with a minor population of ~1.0–0.84 Ga and sporadic grains of ~2.6, ~2.4 and 2.0 Ga, whereas the Shuangtai zircons yield an upper intercept age of 763±33 Ma, identical to the timing of the Wudangshan volcanism within error, with few concordant grains of 1.9 and 0.86 Ga. Age spectra for the two river-sand samples are similar to those of the Yangping and Shuangtai Formations, respectively. It thus suggests that the Wudangshan strata are less than 780 Ma, whereas their major detrital zircon populations of 1.0–0.85 Ga and 830–780 Ma are consistent with timing of the Hannan magmatic activities along the northwestern margin of the South China Block. This suggests a Hannan or adjacent area provenance for the Wudangshan strata. The Wudang area is characterized by rift-related igneous events at ~755 and ~680 Ma, respectively, pointing to a tectono-magmatic history different from the Hannan area. It is inferred that the ~755 Ma magmatism is likely to indicate a separation of the South China Block from the supercontinent Rodinia, while the ~680 Ma event suggests a further split between the South Qinling and some unknown continent.LING WenLi DUAN RuiChun LIU XiaoMing CHENG JianPing MAO XinWu PENG LianHong LIU ZaoXue YANG HongMei REN BangFang 2010Chinese Science Bulletin2010,55,22:24
3Single-cell RNA-seq reveals the diversity of trophoblast subtypes and patterns of differentiation in the human placenta显示文摘胎盘为成功的怀孕和胎儿和怀孕女人的健康是关键的。然而,人的 trophoblast 系怎么被调整,包括胎盘的房间的分类,子类型糟糕被理解。这里,我们在排序的胎盘的房间上执行了定序的单个房间的 RNA (RNA-seq ) 从第一三个月并且秒三个月人胎盘。已知的 cytotrophoblast 房间(CTB ) 的房间的新子类型, extravillous trophoblast 房间(EVT ) , Hofbauer 房间,和间充质的 stromal 房间被识别, cell-type-specific 基因签名被定义。机能上地,这研究揭示了人的胎盘的许多以前未知的功能。尤其是, 102 多肽荷尔蒙基因被发现被胎盘的房间的各种各样的子类型表示,它在调整母亲的生理学的胎儿的生长和改编到怀孕建议建筑群和这些荷尔蒙的重要角色。这些结果在单个房间的分辨率记录人的胎盘的 trophoblast 区别并且因此在怀孕的早阶段期间推进我们人的胎座式的理解。Yawei Liu Xiaoying Fan Rui Wang Xiaoyin Lu Yan-Li Dang Huiying Wang Hai-Yan Lin Cheng Zhu Hao Ge James C. Cross Hongmei Wang 2018Cell Research2018,28,8:15
4Association of polymorphisms of Nramp1 gene with immune function and production performance of large white pig显示文摘The present research was designed to study the association of polymorphism of natural resistance-associated macrophage protein1 (Nramp1) with some immune function and the production performance in Large White pig. The PCR-RFLP technique was applied to analyze the correlation between the polymorphisms of Nramp1 gene and immune function [value of Polymorphonuclear Leukocytes (PMN) obtained by Nitroblue Tetrazolium (NBT) Reduction and effect of Cytotoxin in Monocyte] and production performance in 165 Large White pigs. The results showed that there was one Nde I restriction locus in Large White pig, and both values of PMN by NBT Reduction and effect of Cytotoxin in Monocyte in genotype BB were higher than those in genotype AB (P<0.05). Simultaneously, the weight of 180-day-old pigs with genotype BB was higher than that with genotype AB (P<0.05). The results indicated that there was a significant correlation between different genotypes of Nramp1 gene and Immune function and production performance, and it can be regarded as a candidate gene of disease resistance. All these results provide valuable reference to further studies of pig disease resistance.Hongmei Wu Duxue Cheng Lixian Wang 2008Journal of Genetics and Genomics2008,35,2:12
5Uterine Rbpj is required for embryonic-uterine orientation and decidual remodeling via Notch pathway-independent and -dependent mechanisms显示文摘协调的子宫胚胎的轴形成并且蜕膜的改变是哺乳动物的培植以后的胚胎开发的特点。胚胎子宫的取向在起始的培植被决定并且与蜕膜的开发同步。然而,控制这些事件的分子的机制留下尽管有它的发现逃犯很长时间以前。在现在的学习,我们发现了 Rbpj 的那子宫特定的删除,槽口发信号的原子变换器,在培植以后的阶段导致了反常胚胎子宫的取向和蜕膜的 patterning,导致实质的胚胎损失。我们进一步表明在胚胎附件以前, Rbpj 授与在时间上经由身体上与子宫的雌激素受体交往的子宫的腔形状转变(ERα) 以一种槽口小径无关的方式,它为在有子宫的轴的排列的胚胎取向的起始的建立是必要的。当时在培植以后的阶段, Rbpj 直接以一种槽口小径依赖者方式调整子宫的矩阵 metalloproteinase 的表示,它为正常被要求培植以后的蜕膜的改变。这些结果证明子宫的 Rbpj 为经由指示起始的胚胎子宫的取向并且以一种阶段特定的方式保证正常蜕膜的 patterning 的正常胚胎开发是必要的。我们的数据也证实正常哺乳动物的胚胎子宫的取向要求的概念合适的指导从发展地控制了子宫的发信号。Shuang Zhang Shuangbo Kong Bingyan Wang Xiaohong Cheng Yongjie Chen Weiwei Wu Qiang Wang Junchao Shi Ying Zhang Shumin Wang Jinhua Lu John P Lydon Francesco DeMayo Warren S Pear Hua Han Haiyan Lin Lei Li Hongmei Wang Yan-ling Wang Bing Li Qi Chen Enkui Duan Haibin Wang 2014Cell Research2014,24,8:12
6Expression of vascular endo-thelial growth factor in rat uterus during peri-implantation显示文摘The first distinct mark of rodent implantation is the increased vascular permeability and significant angio-genesis at the sites of blastocyst implantation, but its mechanism is not clearly defined. Vascular endothelial growth factor (VEGF) is the key mediator for angiogenesis during em-bryogenesis and adult span and also serves as a vascular permeability factor. The aim of this study is to explore VEGF regulation mechanism and the possible role that VEGF plays in implantation by studying the VEGF expression and angiogenesis in the rat uterus during estrous cycle, ovarioec-tomized and peri-implantation stages using in situ message RNA hybridization and confocal laser scanning techniques. The results indicated that VEGF was regulated by ovarian steroid hormones. VEGF expression before implantation was localized at luminal epithelium, shifted to stroma as implantation initiated and extensively located at the decidualizing stroma region after implantation. Bandeiraea simplicifolia-1 (BS-1) agglutinin andLongjiang Shao Hongmei Wang Enkui Duan Cheng Zhu 2001Chinese Science Bulletin2001,46,14:7
7Effect of SiO2 addition on NH4HSO4 decomposition and SO2 poisoning over V2O5-MoO3/TiO2-CeO2 catalyst显示文摘The deposition of NH4 HSO4 and the poisoning effect of SO2 on SCR catalyst are the main obstacles that restrict the industrial application of CeO2-doped SCR catalysts.In this work,deposited NH4 HSO4 decomposition behavior and SO2 poisoning over V2 O5-MoO3/TiO2 catalysts modified with CeO2 and SiO2 were investigated.By the means of characterization analysis,it was found that the addition of SiO2 into VMo/Ti-Ce had an impact on the interaction existed between catalyst surface atoms and NH4 HSO4.Temperatureprogrammed methods and in situ diffused reflectance infrared Fourier transform spectroscopy(DRIFTS)experiments indicated that the doping of SiO2 promoted the decomposition of deposited NH4 HSO4 on VMo/Ti-Ce catalyst surface by reducing the thermal stability of NH4 HSO4 and enhancing the NH4 HSO4 reactivity with NO in low temperature.And this improvement may be the reason for the better catalytic activity than VMo/Ti-Ce in the case of NH4 HSO4 deposition.Accompanied with cerium sulfate species generated over catalyst surface,the conversion of SO2 to SO3 was inhibited in SiCe mixed catalyst.The addition of SiO2 could promote the decomposition of cerium sulfate,which may be a potential strategy to enhance the resistance of SO2 poisoning over CeO2-modifed catalysts.Chengqiang Zheng Teng Cheng Linjun Yang Hao Wu Hongmei Fan 2020Journal of Environmental Sciences2020,32,5:6
8Crystal Structures, Stability, and Solubility Evaluation of a 2:1 Diosgenin-Piperazine Cocrystal显示文摘A cocrystal of diosgenin with piperazine in 2:1 stoichiometry was successfully synthesized.The solid form was prepared by liquid assisted grinding,slurry and crystallization methods.The cocrystal was characterized by powder X-ray diffraction,differential scanning calorimetry,thermogravimetric analysis,Fourier transform infrared spectroscopy,and structure determined by single crystal X-ray diffraction,the hydrogen bonds formed into fish bone structure along the[010]direction and all the molecules packed into 3D layer structure along a axis.After formation of cocrystal,the solubility of diosgenin was improved,and the solubility value in 0.2%SDS solution was approximately 1.5 times as large as that of the parent material.Ningbo Gong Hongmei Yu Ying Wang Cheng Xing Kun Hu Guanhua Du Yang Lu 2020Natural Products and Bioprospecting2020,10,4:6
9Surface micro/nanostructure evolution of Au-Ag alloy nanoplates: Synthesis, simulation, plasmonic photothermal and surface-enhanced Raman scattering applications显示文摘Hongmei Qian Meng Xu Xiaowei Li Muwei Ji Lei Cheng Anwer Shoaib Jiajia Liu Lan Jiang Hesun Zhu Jiatao Zhang 2016Nano Research2016,9,3:5
10Pore Structure Characterization and Classification of in-Source Tight Oil Reservoirs in Northern Songliao Basin显示文摘There is no clear consensus on the definition of tight oil in literature;however,more and more researchers accept that tight reservoirs refer to those with permeability less than 1.0 mD or 0.1 mD in the subsurface condition(Jia et al.,2012;Zhao et al.,2012;Zhao,2012;Zou et al.,2014).The Cretaceous Qingshankou formation in the Songliao Basin is rich in tight oil,in which Gaotaizi oilFENG Zihui SHAO Hongmei WANG Cheng LU Xi 2015Acta Geologica Sinica(English Edition)2015,89,A01:4
11Protective effects of Buyinqianzheng Formula on mitochondrial morphology by PINK1/Parkin pathway in SH-SY5Y cells induced by MPP^(+)显示文摘Objective:Buyinqianzheng Formula(BYQZF)is clinically employed in traditional Chinese medicine to treat Parkinson's disease(PD)by improving mitochondrial dysfunction.However,the underlying mechanisms by which BYQZF affects mitochondrial morphology remain unknown.Therefore,we observed the effects of BYQZF on mitochondria from the perspective of the PINK1/Parkin pathway.Methods:Cell survival rates were assessed by Cell Counting Kit-8 assay.Expression levels of PINK1 and Parkin mRNA were examined by qRT-PCR.Protein expression levels of PINK1,PINK1-Ser228,Parkin,Parkin-Ser65,Drp1,and Drp1-Ser637 were examined by western blotting.PINK1,Parkin,and MitoTracker?Red CMXRos(MTR)were stained by triple-labeled immunofluorescence,and observed under laser confocal microscopy.Results:Cell survival rate,mitochondrial form factor,mean length and number of mitochondrial network branches,mitochondrial activity,m RNA expression levels of PINK1 and Parkin,and protein expression levels of PINK1,Parkin,and Drp1-Ser637 were reduced after 1-methyl-4-phenylpyridinium(MPP^(+))intervention.In contrast,Pearson's correlation coefficients between PINK1 and Parkin,and between Parkin and MTR,as well as protein expression levels of PINK1-Ser228,Parkin-Ser65,and Drp1 increased significantly after MPP^(+) intervention.Treatment with BYQZF increased cell survival rate,mitochondrial form factor,mean length and number of mitochondrial network branches,mitochondrial activity,m RNA expression levels of PINK1 and Parkin,and expression of PINK1,Parkin,and Drp1-Ser637 proteins.Pearson's correlation coefficients between PINK1 and Parkin,and between Parkin and MTR,as well as protein expression levels of PINK1-Ser228,Parkin-Ser65,and Drp1 decreased after BYQZF treatment.Conclusion:These results demonstrate that BYQZF has a protective effect on mitochondrial molecular mechanisms in the PD cell model,and the mechanism is related to the PINK1/Parkin pathway.Haojie Ma Zhenyu Guo Cong Gai Cuicui Cheng Jinkun Zhang Yuxin Zhang Luping Yang Wandi Feng Yushan Gao Hongmei Sun 2020Journal of Traditional Chinese Medical Sciences2020,7,3:3
12Non-suicidal self-injury in Shanghai inner bound middle school students显示文摘Background Non-suicidal self-injury (NSSI) behaviour is very common among adolescents. Its prevalence and behavioural characteristics may vary according to regional and cultural differences. Investigation of NSSI locations and diagnosis of adolescents with NSSI are relatively lacking in China. Aims The study objective was to determine the prevalence and features of NSSI among middle school students in Shanghai. Methods The participants were from grade 6 to 8 selected from three junior schools in Jing’an District. Consenting students completed the Ottawa Self-Injury Inventory to determine the prevalence and characteristics of NSSI. Those who indicated NSSI within the past month were administered the Mini-International Neuropsychiatric Interview for Children and Adolescents to assess for emotional disorders. Result The result shows 510 participants (21.7%;mean age 13.51 (0.97) years old;56.7% female) reported at least one instance of NSSI during the previous 12 months. NSSI was significantly more common in girls than boys (24.9% vs 18.5%;χ^2=14.03, p=0.00). Commonly reported reasons for NSSI were for internal and external emotion regulation (87.9%, 82.3%) and social influence (57.8%). Anxiety disorders were the most common (28.9%) disorder associated with NSSI. Conclusion The rate of NSSI of middle school students in Shanghai inner bound is similar to those reported in North American and European youth. It is essential that school mental health professionals are aware of how to manage NSSI within the school setting.Fang Zhang Paula F Cloutier Hongmei Yang Wenjing Liu Wenhong Cheng Zeping Xiao 2019General Psychiatry2019,32,4:3
13Thermodynamic characterization of two novel spin-crossover complexes显示文摘Two novel FeII spin crossover complexes [Fe(L1)3](BF4)25H2O (1) and [Fe(L2)3](BF4)2·2H2O (2) with 4-NHR-1,2,4-triazole (R = isopropyl, L1; cyclohexyl, L2) were synthesized. 1 and 2 remain white at room temperature, whereas they turn purple at liquid temperature. Variable temperature optical detection and magnetic susceptibilities measurement show that the spin-crossover phenomenon for 1 was observed between 120 K and 170 K. The hysteresis loop is about 10 K. The Tc temperature of 2 is 190 K, but no thermal hysteresis loop was found. The molar thermodynamic functions and the microscopic parameters were obtained from the theoretical analysis in terms of the domain model, two level Ising model and regular solution model, respectively.DING Bin, WANG Hongmei, YI Long, CHENG Peng, LI Licun, ZHAI Yuping, LIAO Daizheng, YAN Shiping & JIANG Zonghui Department of Chemistry, Nankai University, Tianjin 300071, China Correspondence should be addressed to Cheng Peng or Liao Daizheng (e-mail: pcheng@nankai.edu.cn) 2003Chinese Science Bulletin2003,48,22:3
14Solvothermal synthesis of CdS nanorods and photovoltaic characteristics of CdS/PVK composite system显示文摘Large quantities of CdS nanorods are successfully synthesized through Cd(CH3COO)2·2H2O reacting with Na2S·9H2O and EDA in aqueous solution. XRD result shows that the sample is of hexagonal structure. And TEM result shows that the morphologies of the resulting CdS are mainly in three-armed rod-like structure with a diameter of 10―15 nm and a length of 100 nm. The nanocomposites of CdS/PVK with different molar ratios are prepared by spin coating method on tin-doped indium oxide (ITO) substrate. A notable decrease of photoluminescence (PL) efficiency and a significant enhance-ment of surface photovoltage signal have been observed in CdS/PVK composites when the molar frac-tion of CdS increases. We interpret these results as the energy level matching between CdS and PVK in nanocomposites. This energy level matching facilitates fast interfacial charge transfer then increases the separation efficiency of electron-hole pairs and the carrier generation efficiency. The detailed charge transfer process has also been demonstrated.JI YanLing CHENG Ke ZHANG HongMei ZHANG XingTang LI YunCai DU ZuLiang 2008Chinese Science Bulletin2008,53,1:2
15Purification and characterization of a thermostable cellulase-free xylanase from the newly isolated Paecilomyces themophila显示文摘LI Lite TIAN Hongmei CHENG Yongqiang 2006Enzyme and Microbial Technology2006,38,:1
16Ghrelin prevents doxorubicin-induced cardiotoxicity through TNF-alpha/NF-κB pathways and mitochondrial protective mechanisms显示文摘Zhiwei Xu Shiqing Lin Weikang Wu Hongmei Tan Zhi Wang Chao Cheng Lihe Lu Xuanhong Zhang 2008Toxicology2008,,2:1
17Multi-year assessment of paralytic shellfish toxins in hard clam species along the coastline of Jiangsu Province, China显示文摘Paralytic shellfish toxins(PSTs) are notorious neurotoxins that threaten public health and food safety worldwide.Although PST monitoring programs have recently been established throughout China, the profiles and variation of PSTs in important commercial clams(e.g., Mactra veneriformis, Ruditapes philippinarum, and Meretrix meretrix) along the Jiangsu Province coastline remain largely unexplored. In this study, a validated hydrophilic interaction liquid chromatography–tandem mass spectrometry(HILIC-MS/MS) method was used to examine PST profiles and levels in 540 clam samples from natural production areas along Jiangsu Province coastline during2014–2016. Although the PST levels(≤6.38 μg saxitotoxin equivalents(eq)/kg) were consistently below European Union regulatory limits(≤800 μg saxitotoxin eq/kg) during this time period, saxitotoxin, decarbamoylsaxitotoxin,and gonyautoxins 1 and 4 were detected, and nearly 40% of the samples were saxitotoxin-positive. The PST levels also varied significantly by seasons, with peak values observed in May during 2014–2016. This is the first systematic report of PSTs in clams from Jiangsu Province, and additional research and protective measures are needed to ensure the safety of clams harvested in this area.Xinzhi Wang Hao Wu Ying Cheng Hongmei Wen Rui Liu Libao Wang Chenxiao Shan Chuan Chai 2019Acta Oceanologica Sinica2019,38,2:1
18Analyzing key influence factors of city logistics development using the fuzzy decision mak- ing trial and evaluation laboratory (DEMATEL) method显示文摘HONGMEI HE HAIFANG CHENG 2012African Journal of Business Management2012,14,6:1
19Shp - 1 mediates the antiproliferative activity of tissue inhibitor of metalloproteinase- 2 in human microvascular endothelial Cells 显示文摘Dong - Wan Seo Hongmei Li Cheng - Kui Qu 2006Biol Chem2006,281,6:1
20Identification of a no- vel mutation,TCT, kdr allele mutation,and resistance detection in the voltage - gated Na + channel of Culex pipiens pallens from Shandong Province, China显示文摘Hongmei Liu Peng Cheng Xiaodan I4uang 2013Mol Med Report2013,7,2:1
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