检索结果-南通市图书馆

Acute liver failure in Chinese children:a multicenter investigation

Hepatobiliary & Pancreatic Diseases International 2014年第3期13卷 276-280页

作者： Pan zhao chun-Ya Wang Wei-Wei Liu xi Wang Li-Ming Yu Yan-Rong Sun Liver Failure Therapy and Research Center Beijing 302 Hospital (PLA 302 Hospital) Emergency Department Beijing Anzhen Hospital Capital Medical University Intensive Care Unit Emergency Department General Hospital of PLA Postgraduate Division Academy of Military Medical Science Medical Administration Department Changhai Hospital Second Military Medical University Medical Administration Department General Hospital of Jinan Military Region Medical Administration Department General Hospital of Lanzhou Military Region

BACKGROUND: Currently, no documentation is available regarding Chinese children with acute liver failure(ALF). This study was undertaken to investigate etiologies and outcomes of Chinese children with ***: We retrospectively enrolled 32 pediatric patients with ALF admitted in five hospitals in different areas of China from January 2007 to December 2012. The coagulation indices, serum creatinine, serum lactate dehydrogenase,blood ammonia and prothrombin activity were analyzed; the relationship between these indices and mortality was evaluated by multivariate ***: The most common causes of Chinese children with ALF were indeterminate etiology(15/32), drug toxicity(8/32),and acute cytomegalovirus hepatitis(6/32). Only 1 patient(3.13%)received liver transplantation and the spontaneous mortality of Chinese children with ALF was 58.06%(18/31). Patients who eventually died had higher baseline levels of international normalized ratio(P=0.01), serum creatinine(P=0.04), serum lactate dehydrogenase(P=0.01), blood ammonia(Png the death. Based on the established model, with an increase of blood ammonia level,the risk of mortality would increase by 6.9%.CONCLUSIONS: The indeterminate causes predominated in the etiologies of ALF in Chinese children. The spontaneous mortality of pediatric patients with ALF was high, whereas the proportion of patients undergoing liver transplantation was significantly low. Entry blood ammonia was a reliable predictor for the death of pediatric patients with ALF.

关键词： acute liver failure children etiology mortality prognosis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

p38 MAPK is Crucial for Wnt1- and LiCl-Induced Epithelial Mesenchymal Transition

引用

Current Medical Science 2018年第3期38卷 473-481页

作者： chun-xiao FAng chun-mei MA Ling JIAng xi-ming WAng Na ZHAng Ji-na MA Tai-hua WU Zhong-he ZHAng Guang-dong zhao Ya-dong zhao Department of Pulmonary Medicine The First Affiliated Hospital of Dalian Medical University Dalian 116011 China Department of Radiology The First Affiliated Hospital of Dalian Medical University Dalian 116011 China Department of Pulmonary Medicine Dalian Central Hospital Affiliated to Dalian Medical University Dalian 116033 China

Idiopathic pulmonary fibrosis （IPF） is characterized by myofibroblast loci in lung parenchyma. Myofibroblasts are thought to originate from epithelial-to-mesenchymal transition （EMT）. Wntl and lithium chloride （LiCl） induce EMT in alveolar epithelial cells （AECs）, but the mechanisms are unclear. AECs were treated with Wntl and LiC1, respectively; morphological change and molecular changes of EMT, including E-cadherin, fibronectin, and vimentin, were observed. SB203580 was administrated to test the role of p38 MAPK signaling in EMT. Then AECs were treated with siRNAs targeting p38 MAPK to further test the effects of p38 MAPK, and the role was further confirmed by re-expression of p38 MAPK. At last β-catenin siRNA was used to test the role of β-catenin in the EMT process and relationship of β-catenin and p38 MAPK was concluded. Exposure of AECs to Wntl and LiC1 resulted in upregulation of vimentin and fibronectin with subsequent downregulation of E-cadherin. Wntl and LiC1 stimulated the p38 MAPK signaling pathways. Perturbing the p38 MAPK pathway either by SB203580 or through p38 MAPK siRNA blocked EMT and inhibited fibronetin synthesis, which were reversed by transfection of p38 MAPK expression plasmid. β-catenin siRNA attenuated the EMT process and decreased p38 MAPK phosphorylation, indicating that β-catenin is involved in the EMT- related changes through regulation of p38 MAPK phosphorylation. These findings suggest that p38 MAPK participates in the pathogenesis of EMT through Wnt pathway and that p38 MAPK may be a novel target for IPF therapy.

关键词： Wnt p38 MAPK epithelial-to-mesenchymal transition

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bi-f-harmonic map equations on singly warped product manifolds

引用

Applied Mathematics(A Journal of Chinese Universities) 2015年第1期30卷 111-126页

作者： zhao chun-li LU Wei-jun Center of Mathematical Sciences Zhejiang University College of Sciences Guangxi University for Nationalities

Bi-f-harmonic maps are the critical points of bi-f-energy functional. This class of maps tends to integrate bi-harmonic maps and f-harmonic maps. In this paper, we show that bi-f-harmonic maps are not only an extension of f-harmonic maps but also an extension of bi-harmonic maps, and that there should exist many examples of proper bi-f-harmonic maps. In order to find some concrete examples of proper bi-f-harmonic maps, we study the basic properties of bi-f-harmonic maps from two directions which are conformal maps between the same dimensionM manifolds and some special maps from or into a warped product manifold.

关键词： f-tension field bi-f-tension field bi-f-harmonic map f-bi-harmonic map singly warped productmanifold.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tebufenozide resistance is associated with sex-linked inheritance in Plutella xylostella

引用

Insect Science 2015年第2期22卷 235-242页

作者： Guang-chun Cao zhao-Jun Han Entomology Department/Key Laboratory of Monitoring and Management of Plant Diseases and Insects Ministry of Agriculture NanjingAgricultural University Nanjing State Key Laboratory for Biology of Plant Disease and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural Sciences Beijing China

The diamondback moth （DBM）, Plutella xylostella （L.）, is a major pest of cruciferous crops. Tebufenozide, a novel nonsteroidal ecdysone agonist, exhibits good efficacy and has played an increasingly important role in the control of Lepidopteran pests in China. For its resistance management, the genetic basis of tebufenozide resistance was studied using a laboratory selected resistant strain of DBM （resistant ratio, RR = 268）. A series of crosses with laboratory susceptible and resistant strains revealed that tebufenozide resistance in this pest was partially biased toward female heredity, with a large difference in RR for F1 （RR = 29） and rF1 progeny （RR = 147）. The dominance calculated for these 2 cross progeny was -0.788 and 0.09, respectively. Further analysis showed that the susceptible male and female larvae were similar in theft sensitivity to tebufenozide, but the resistant female larvae showed significantly higher resistance than the resistant male larvae. The heredity of tebufenozide resistance in DBM might be linked with the W sex chromosome, which suggested that DBM has the ability to develop high levels of resistance to tebufenozide. This is the first report of sex-linked inheritance oftebufenozide resistance in P xylostella （L.）.

关键词： insecticide resistance Plutella xylostella sex linkage tebufenozide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

1B Specific LMW-GS Primers Cloned a 1D Located Gene from Wheat Cultivar xiaoyan 22

引用

Agricultural Sciences in China 2009年第12期8卷 1419-1428页

作者： YU Xu GAO xiang CHEN Qi-jiao WU Dan DOng Jian zhao Wan-chun PAng Hong-xi LI Zhe-qing College of Agronomy Northwest A&F University Yangling 712100 P.R.China Wheat Engineering Research Center of Shaanxi Province Yangling 712100 P.R. China

In the present study, one unique low-molecular-weight glutenin subunit （LMW-GS） gene. LMWXY22-2 （GenBank no. FJ028810）, was isolated from wheat cultivar xiaoyan 22 （Triticum aestivum L.） by a pair of genomic specific PCR primers for 1B chromosome. Sequence analysis revealed that LMWXY22-2 was composed of 1 364 bp nucleotides, including a 317 bp promotion region and a 1 047 bp coding region which could be translated into a mature protein of 349 amino acids. In spite of a few minor mutations, the sequence of 5＇ untranslated region （UTR）, the coding region, the deduced N- and Cterminus comparisons indicated that LMWXY22-2 belonged to the reported subunits of LMW-m type and type lII group 5, respectively. Inner gene markers for 1D chromosome together with the phylogenetic analysis revealed that this gene was classified into Glu-D3, which was not in agreement with the I B locus-specific primers for LMW genes completely.

关键词： 1B locus-specific primers gene cloning LMW-GS transferability wheat

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis and Characterization of NASICON Nanoparticles by Sol-gel Method

引用

Chemical Research in Chinese Universities 2009年第1期25卷 13-16页

作者： WAng Biao LIAng xi-shuang LIU Feng-min ZHOng Tie-gang zhao chun LU Ge-yu QUAN Bao-fu State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 P. R. China

Na superionic conductor（NASICON） nanoparticles were synthesized by a modified sol-gel method and sintered at a temperature range of 800--1000℃. The performance of the samples was characterized by the analysis methods of X-ray diffraction（XRD）, Fourier transform infrared spectroscopy（FTIR）, and transmission electron microscopy（TEM） as well as conductivity measurement. Compared with those sintered at other temperatures, the NASICON material sintered at 900 ℃ had the best crystalline structure and higher conductivity.

关键词： Na superionic conductor(NASICON) Nanoparticles Sol-gel method

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Correlation between intrinsic dipole moment and pyroelectric coefficient of Fe-Mg tourmaline

引用

International Journal of Minerals,Metallurgy and Materials 2014年第2期21卷 105-112页

作者： Chang-chun zhao Li-bing Liao Jie xing School of Science China University of Geosciences School of Materials Science and Technology China University of Geosciences

Single-crystal X-ray diffraction structural data of four Fe-Mg tourmalines with different Fe contents from xinjiang, Sichuan, and Yunnan Provinces, China, were collected at room temperature and-100oC. The intrinsic dipole moments of polyhedra and the total intrinsic dipole moment of the unit cell were calculated. By comparing the intrinsic electric dipole moments of the X, Y, Z, T, and B site polyhedra, it is found that the T site polyhedron makes the greatest contribution to the total intrinsic dipole moment. The pyroelectric coefficients of four Fe-Mg tourmalines were experimentally determined, and the influence of intrinsic dipole moments on their pyroelectric properties was inves-tigated. The experimental results show that, compared with the case at room temperature, the intrinsic dipole moments change with the total Fe content at-100oC in a completely different way. With the decrease of temperature, the total intrinsic dipole moments of tourmaline de-crease. Over the same temperature interval, the pyroelectric coefficients increase with the increase in intrinsic dipole moment.

关键词： tourmaline pyroelectricity dipole moment polyhedra

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Estimating total leaf nitrogen concentration in winter wheat by canopy hyperspectral data and nitrogen vertical distribution

引用

Journal of Integrative Agriculture 2019年第7期18卷 1562-1570页

作者： DUAN Dan-dan zhao chun-jiang LI Zhen-hai YAng Gui-jun zhao Yu QIAO xiao-jun ZHAng Yun-he ZHAng Lai-xi YAng Wu-de Institute of Dry Farming Engineering Shanxi Agricultural UniversityTaigu 030801P.R.China National Engineering Research Center for Information Technology in Agriculture Beijing 100097P.R.China Key Laboratory of Quantitative Remote Sensing in Agriculture of Ministry of Agriculture and Rural Affairs/Beijing Research Center for Information Technology in Agriculture Beijing 100097P.R.China Beijing Engineering Research Center for Agriculture Internet of Things Beijing 100097P.R. China

The use of remote sensing to monitor nitrogen(N) in crops is important for obtaining both economic benefit and ecological value because it helps to improve the efficiency of fertilization and reduces the ecological and environmental *** this study,we model the total leaf N concentration(TLNC) in winter wheat constructed from hyperspectral data by considering the vertical N distribution(VND).The field hyperspectral data of winter wheat acquired during the 2013–2014 growing season were used to construct and validate the *** results show that:(1) the vertical distribution law of LNC was distinct,presenting a quadratic polynomial tendency from the top layer to the bottom layer.(2) The effective layer for remote sensing detection varied at different growth *** entire canopy,the three upper layers,the three upper layers,and the top layer are the effective layers at the jointing stage,flag leaf stage,flowering stages,and filling stage,respectively.(3) The TLNC model considering the VND has high predicting accuracy and *** models based on the greenness index(GI),mND705(modified normalized difference 705),and normalized difference vegetation index(NDVI),the values for the determining coefficient(R2),and normalized root mean square error(nRMSE) are 0.61 and 8.84%,0.59 and 8.89%,and 0.53 and 9.37%,***,the LNC model with VND provides an accurate and non-destructive method to monitor N levels in the field.

关键词： nitrogen concentration hyperspectral vertical nitrogen distribution winter wheat

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

rp Drell-Yan Process in Color Dipole Model

引用

Communications in Theoretical Physics 2002年第7期38卷 68-70页

作者： zhao Hong-Ming DUAN chun-Gui Department of Physics Hebei Normal University Shijiazhuang 050016 China Department of Physics Hebei Normal University Shijiazhuang 050016 China CCAST (World Laboratory) P.O. Box 8730 Beijing 100080 China

We study pion-proton Orp) Drell-Yan (DY) dilepton production in the target rest frame with color dipole model. The prediction for πp DY cross section at the energies of RHIC and LHC is presented, and it can be compared with the data directly, because it does not need K factor. At the same time, the transverse momentum distribution is shown in quantities, which is not available from the standard parton model. The experimental studies of the process could test the color model for DY dilepton production.

关键词： color dipole model, Drell-Yan process, cross section

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Scheme for Implementing Quantum Dense Coding and Teleportation with Tripartite Entangled State in Cavity QED

引用

Communications in Theoretical Physics 2008年第11期50卷 1113-1116页

作者： JIA chun-xia PEng zhao-Hui Department of Physics Hunan University of Science and Technology Xiangtan 411201 China

In this paper, we present a peculiar tripartite entangled state that is inequivalent to both the GHZ state and the W state, and then propose to implement efficient quantum information processing such as quantum dense coding and teleportation with this entangled state in cavity QED. In this scheme the atoms interact with a highly detuned cavity field with the assistance of a strong classical driven field. It does not require the transfer of quantum information between the atomic system and the cavity, and then our scheme is insensitive to both the cavity decay and the thermal field.

关键词： dense coding teleportation cavity QED

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：