检索结果-南通市图书馆

Integrative genome,transcriptome,microRNA,and degradome analysis of water dropwort(Oenanthe javanica)in response to water stress

引用

Horticulture Research 2021年第1期8卷 3396-3412页

作者： Jie-Xia Liu Qian Jiang Jian-ping Tao Kai Feng Tong Li ao-Qi Duan Hao Wang Zhi-Sheng Xu Hui Liu Ai-Sheng Xiong State Key Laboratory of Crop Genetics and Germplasm Enhancement Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East ChinaCollege of HorticultureNanjing Agricultural University1 Weigang210095 NanjingChina

Water dropwort(Liyang Baiqin,Oenanthe javanica(BI.)DC.)is an aquatic perennial plant from the Apiaceae family with abundant protein,dietary fiber,vitamins,and *** usually grows in wet soils and can even grow in ***,whole-genome sequencing of *** via HiSeq 2000 sequencing technology was reported for the first *** genome size was 1.28 Gb,including 42,270 genes,of which 93.92%could be functionally *** online database of the whole-genome sequences of water dropwort,Water dropwortDB,was established to share the results and facilitate further research on ***(database homepage:http://***/waterdropwortdb).Water dropwortDB offers whole-genome and transcriptome sequences and a Basic Local Alignment Search *** analysis with other species showed that the evolutionary relationship between *** and Daucus carota was the ***-five gene families of *** were found to be expanded,and some genetic factors(such as genes and miRNAs)related to phenotypic and anatomic differentiation in *** under different water conditions were further *** miRNA and target gene pairs(miR408 and Oja15472,miR171 and Oja47040)were remarkably regulated by water *** obtained reference genome of *** provides important information for future work,thus making in-depth genetic breeding and gene editing *** present study also provides a foundation for the understanding of the *** response to water stress,including morphological,anatomical,and genetic differentiation.

关键词： vitamin stress analysis

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

Band alignment between NiO_(x) and nonpolar/semipolar GaN planes for selective-area-doped termination structure

引用

Chinese Physics B 2021年第6期30卷 583-587页

作者： Ji-Yao Du Ji-Yu Zhou Xiao-Bo Li Tao-Fei Pu Liu-An Li Xin-Zhi Liu Jin-ping ao School of Automation and Electrical Engineering Shenyang Ligong UniversityShenyang 110159China Institute of Technology and Science Tokushima UniversityTokushimaJapan School of Physics Sun Yat-Sen UniversityGuangzhou 510275China

Band alignment between NiO_(x) and nonpolar GaN plane and between NiO_(x) and semipolar GaN plane are measured by x-ray photoelectron spectroscopy. They demonstrate that the maximum value of the valence band in the unintentional-doped a-plane, m-plane, and r-plane GaN are comparable to each other, which means that all the substrates are of n-type with similar background carrier concentrations. However, the band offset at the NiO_(x)/GaN interface presents obvious crystalline plane dependency although they are coated with the same NiO_(x) films. By fitting the Ga 3 d spectrum obtained from the NiO_(x)/GaN interface, we find that relatively high Ga–O content at the interface corresponds to a small band offset. On the one hand, the high Ga–O content on the GaN surface will change the growth mode of NiO_(x). On the other hand, the affinity difference between Ga and O forms a dipole which will introduce an extra energy band bending.

关键词： GaN NiO_(x) band alignment vertical diode

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

干细胞处于所有癌症的中心吗？

引用

科学通报 2018年第12期63卷 1076-1081页

作者：朱晓梅敖平上海大学定量生命科学国际研究中心物理系上海200444 上海交通大学系统生物医学研究院上海200240

干细胞和癌细胞是细胞众多状态中的一部分,这个事实说明干细胞不会处于所有癌症的中心,但会是癌症发生发展的一个重要因素.近年来更多的生物实验研究和医学临床观察也充分支持这个结论.干细胞与癌症的关系是关于细胞形态维持与转化——... 详细信息

干细胞和癌细胞是细胞众多状态中的一部分,这个事实说明干细胞不会处于所有癌症的中心,但会是癌症发生发展的一个重要因素.近年来更多的生物实验研究和医学临床观察也充分支持这个结论.干细胞与癌症的关系是关于细胞形态维持与转化——生物的中心问题之一.通过分析干细胞和癌症在3种层次-现象、分子生物标志、系统生物机理-中的关系,21世纪内发展起来的内源性网络理论可以作为一个全新的、综合性的思考平台.它能定量地刻画细胞状态的稳定性和相互转化的动态路径,把遗传和表观遗传现象的描述统一在同一个理论中,能更好地理解目前对这个问题研究的热潮下的生物学意义并能在理论和计算上帮助它向前推进.所有这些进展都指向一个可能:革命性的突破就在我们眼前.

关键词：干细胞癌症遗传和表观遗传内源性网络理论适应性功能景观景观拓扑图

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

印刷指数渐变Vivaldi天线研究

引用

西安电子科技大学学报 2011年第2期38卷 194-196页

作者：李萍余嘉傲武警工程学院通信工程系陕西西安710086 中国农业大学工学院北京100083

在Vivaldi天线的基础上,分析了天线渐变槽线结构对天线工作带宽的影响,提出了在侧翼加载和尾部加抗流栅栏的方法.测试结果表明:天线在320 MHz^1 GHz和1.16 GHz^1.3 GHz的频带内驻波小于2,在超短波的应用频带内驻波小于1.2,是一种高增益... 详细信息

在Vivaldi天线的基础上,分析了天线渐变槽线结构对天线工作带宽的影响,提出了在侧翼加载和尾部加抗流栅栏的方法.测试结果表明:天线在320 MHz^1 GHz和1.16 GHz^1.3 GHz的频带内驻波小于2,在超短波的应用频带内驻波小于1.2,是一种高增益小型化宽频带天线.

关键词：渐变槽线天线超宽带驻波

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

An Evidence of Aerosol Indirect Effect on Stratus Clouds from the Integrated Ground-Based Measurements at the ARM Shouxian Site

引用

Atmospheric and Oceanic Science Letters 2011年第2期4卷 65-69页

作者： TANG Jin-ping WANG Pu-Cai DUAN Min-Zheng CheN Hong-Bin XIA Xiang-ao LIao Hong Key Laboratory of Middle Atmosphere and Global Environment Observation （LAGEO） Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Graduate University of ChineseAcademy of Sciences Beijing 100049 China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry （LAPC） Institute of Atmospheric Phys- ics Chinese Academy of Sciences Beijing 100029 China

The aerosol effect on clouds was explored using remote sensing of aerosol and cloud data at Shouxian, China. Non-precipitation, ice-free, and overcast clouds were firstly chosen by a combination of sky im- ages from the Total Sky Imager （TSI）, cloud base heights from the Ceilometer, and vertical temperature profiles from the Balloon-Borne Sounding System （BBSS）. Six cases were chosen in summer, and seven in autumn. The averaged cloud effective radii （re）, cloud optical depth （COD）, aerosol total light scattering coefficient （a）, and liquid water path （LWP） are, respectivey, 6.47 μm, 35.4, 595.9 mm-1, 0.19 mm in summer, and 6.07 μm, 96.0, 471.7 mm-1, 0.37 mm in autumn. The correlation coefficient between re and tc was found to change from negative to positive value as LWP increases.

关键词： aerosol warm cloud effective radius opticaldepth liquid water path

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

Design of vertical diamond Schottky barrier diode with junction terminal extension structure by using the n-Ga_(2)O_(3)/p-diamond heterojunction

引用

Chinese Physics B 2022年第10期31卷 120-125页

作者： Wang Lin Ting-Ting Wang Qi-Liang Wang Xian-Yi Lv Gen-Zhuang Li Liu-An Li Jin-ping ao Guang-Tian Zou State Key Laboratory of Superhard Material College of PhysicsJilin UniversityChangchun 130012China Shenzhen Research Institute Jilin UniversityShenzhen 518057China National Key Discipline Laboratory of Wide Bandgap Semiconductor Xidian UniversityXi’an 710071China

A novel junction terminal extension structure is proposed for vertical diamond Schottky barrier diodes(SBDs) by using an n-Ga_(2)O_(3)/p-diamond heterojunction. The depletion region of the heterojunction suppresses part of the forward current conduction path, which slightly increases the on-resistance. On the other hand, the reverse breakdown voltage is enhanced obviously because of attenuated electric field crowding. By optimizing the doping concentration, length, and depth of n-Ga_(2)O_(3), the trade-off between on-resistance and breakdown voltage with a high Baliga figure of merit(FOM)value is realized through Silvaco technology computer-aided design simulation. In addition, the effect of the work functions of the Schottky electrodes is evaluated. The results are beneficial to realizing a high-performance vertical diamond SBD.

关键词： diamond Schottky barrier diode junction terminal extension simulation

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

Antipyretic and anti-inflammatory activities of Thais luteostoma extracts and underlying mechanisms

引用

Chinese Journal of Natural Medicines 2015年第3期13卷 192-198页

作者： LIU Xin TANG Yu-ping LIU Rui JIN Yi GUO Jian-Ming ZHao Jin-Long DING Shao-Xiong LIN Xiang-Zhi LIN Ru-Rong DUAN Jin-ao Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Nanjing University of Chinese Medicine College of Ocean and Environment Xiamen University Third Institute of Oceanography State Oceanic Administration

Thais luteostoma has been utilized as a crude drug whose shell and soft tissue have been widely used for the treatment of heat syndrome in China for thousands of years. The present study was designed to investigate the antipyretic and anti-inflammatory activities of T. luteostoma. T. luteostoma was divided into shell （TLSH） and soft tissue （TLST） samples in the present study. The rat model of yeast-induced fever was used to investigate their antipyretic effects; and the rat model of hind paw edema induced by carrageenan was utilized to study their anti-inflammatory activities, and at the same time, the concentration variations of the central neurotransmitter [prostaglandin E2 （PGE2） and cyclic adenosine monophosphate （cAMP）], inflammatory mediators [tumor necrosis factor （TNFα）, interleukin-1β （IL-1）, interleukin-2 （IL-2） and interleukin-6 （IL-6）] and ion （Na^＋ and Ca^2＋） were also tested. The results showed that TLSH and TLST extracts significantly inhibited yeast-induced pyrexia in rats （P 〈 0.05）, and exhibited more lasting effects as compared to aspirin, and TLSH had the better antipyretic activity than TLST, and that TLSH and TLST could significantly prevent against carrageenan induced paw edema in rats （P 〈 0.05）; and markedly reduced levels of PGE2, cAMP, TNFα, IL-1β, IL-2, IL-6, and Na^＋/Ca^2＋. In fever model, TLST could significantly reduce the levels of PGE2 （P 〈 0.01） in rats＇ homogenate and TNF a （P 〈 0.05）, IL-113 （P 〈 0.01） in the plasma than TLSH, whereas TLSH could reduce the content of IL-2 （P 〈 0.01） and IL-6 （P 〈 0.01） in plasma and increase the content of Ca2＋（P 〈 0.01） in plasma and homogenate more significantly than TLST. In conclusion, T. luteostoma extract has antipyretie and anti-inflammatory activities, which may be mediated through the suppression of production of PGE2, cAMP, Na^＋/Ca^2＋ , TNF a, IL-1β, IL-2, and IL-6.

关键词： Marine organism Thais luteostoma Antipyretic Anti-inflammatory Inflammatory mediator

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

FAST AND SLOW DECAY SOLUTIONS FOR SUPERCRITICAL FRACTIONAL ELLIPTIC PROBLEMS IN EXTERIOR DOMAINS

引用

数学杂志 2020年第5期40卷 508-510页

作者： ao Wei-wei LIU Chao WANG Li-ping School of Mathematics and Statistics Wuhan UniversityWuhan 430072China Department of Mathematics Shanghai Key Laboratory of Pure Mathematics and Mathematical PracticeEast China Normal UniversityShanghai 200241China

1 Introduction and Main Results We construct classic solutions of the following supercritical nonlinear fractional exterior problem.

关键词： problem. exterior fractional

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

Deficiency of Tfh Cells and Germinal Center in Deceased COVID-19 Patients

引用

Current Medical Science 2020年第4期40卷 618-624页

作者： Ya-qi DUAN Ming-hui XIA Liang REN Yan-fang ZHANG Qi-lin ao San-peng XU Dong KUANG Qian LIU Bing YAN Yi-wu ZHOU Qian CHU Liang LIU Xiang-ping YANG Guo-ping WANG Institute of Pathology Tongjii HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Pathology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Immunology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Forensic Medicine Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China State Key Laboratory of Virology Wuhan Institute of VirologyCenter for Biosafety Mega ScienceChinese Academy of SciencesWuhan 430071China Department of Oncology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Summary:The COVID-19 pandemic caused by SARS-CoV2 is characterized by a remarkable variation in clinical severity ranging from a mild illness to a fatal multi-organ *** the dysregulated human immune responses in the fatal subjects is critical for management of COVID-19 patients and the *** this study,we examined the immune cell compositions in the lung tissues and hilar lymph nodes using immunohistochemistry on 6 deceased COVID-19 patients and 4 focal organizing pneumonia(FOP)patients who underwent lung surgery and served as *** found a dominant presence of macrophages and a general deficiency of T cells and B cells in the lung tissues from deceased COVID-19 *** contrast to the FOP patients,Tfh cells and germinal center formation were largely absent in the draining hilar lymph nodes in the deceased COVID-19 *** was correlated with reduced IgM and IgG levels compared to convalescent COVID-19 *** summary,our data highlight a defect of germinal center structure in deceased COVID-19 patients leading to an impaired humoral *** the mechanisms of this deficiency will be one of the key points for the management of this epidemic.

关键词： COVID-19 immune responses germinal center T follicular helper cells

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

Ultracompact,Reflection-Free and High-Efficiency Channel Drop Filters Based on Photonic Crystal Nanobeam Cavities

引用

Chinese Physics Letters 2013年第3期30卷 92-95页

作者： YU ping HU Ting QIU Chen SheN ao QIU Hui-Ye WANG Fan JIANG Xiao-Qing WANG Ming-Hua YANG Jian-Yi Department of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 310027 Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of SciencesSuzhou 215163 Cyrus Tang Center for Sensor Materials and Applicatons Zhejiang UniversityHangzhou 310027

We propose an ultracompact channel drop filter(CDF)based on photonic crystal nanobeam *** conditions for implementing such an ideal CDF are derived from the temporal coupled-mode equations governing the operation of the *** considering the intercoupling of the two involved nanobeam cavities,some ambiguities of the previous equivalent circuit model analysis are cleared *** configurations on silicon-on-insulator(SOI)for the proposed CDF are suggested with a typical length less than 15μ*** difference time domain(FDTD)method calculations show that the proposed filter can achieve drop efficiency higher than 99%without any *** to theλ/4-shifted Bragg grating resonators based CDF,the proposed CDF is more compact,high-efficient and *** is also easy to implement a low-power tunable filter due to the ultrahigh quality factor Q and ultrasmall modal volume V of the involved photonic crystal nanobeam cavities.

关键词： Efficiency beam Crystal

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

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：