检索结果-南通市图书馆

Intraspecific DNA methylation polymorphism in the non-edible oilseed plant castor bean

Plant Diversity 2017年第5期39卷 300-307页

作者： shan he Wei Xu Fei Li Yue Wang Aizhong Liu Department of Economic Plants and Biotechnology Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China

Investigation of the relationships of phenotypic and epigenetic variations might he a good way to dissect the genetic or molecular basis of phenotypic variation and plasticity in plants, Castor bean （Ricinus cornraunis L）, an important non-edible oilseed crop, is a mono-species genus plant in the family Euphorbiaceae. Since it displays rich phenotypic variations with low genetic diversity, castor bean is a good model to investigate the molecular basis of phenotypic and epigenetic variations. Cytosine DNA methylation represents a major molecular mechanism of epigenetic occurrence. In this study, epigenetic diversity of sixty landrace accessions collected worldwide was investigated using the methylation- sensitive amplification polymorphism （MSAP） technique, Results showed that the epigenetic diversity （based on the polymorphism of DNA methylated loci） exhibited a medium variation （Ne = 1.395, he = 0.242, I = 0.366） at the population level though the variation was great, ranging from 3,80% to 3431% among accessions. Both population structure analysis and the phylogenetic construction （using the neighbor-joining criteria） revealed that the two main clades were identified, but they did not display a distinct geographic structure, After inspecting the location of polymorphic methylated loci on genome we identified that the polymorphic methylated loci occur widely in nuclear and organelle genomes. This study provides new data to understand phenotypic and epigenetic variations in castor bean,

关键词： jRicinus communis L. Epigenetic diversity Methylation-sensitive amplification polymorphism DNA methylation

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

A New Quantum Communication Scheme by Using Bell States

引用

Communications in Theoretical Physics 2006年第2期45卷 271-274页

作者： CAO Hai-Jing CheN Jing SONG he-shan Department of Physics Dalian University of Technology Dalian 116024 China

A new quantum communication scheme based on entanglement swapping is presented. Simplified calculation symbols are adopted to realize the process. Quantum key distribution and quantum secure direct communication can be simultaneously accomplished in the scheme. Two legitimate communicators can secretly share four certain key bits and four random key bits via three EPR pairs （quantum channels）.

关键词： quantum key distribution quantum secure direct communication Bell-state measurements security

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

Shrinking lung syndrome in autoimmune inflammatory diseases:A case series and review of literature

引用

World Journal of Emergency Medicine 2022年第3期13卷 254-256页

作者： Xiao-chan Chen shan he Jing Xue Department of Rheumatology the Second Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310009China Department of Rheumatology and Immunology the Affiliated Jinhua Hospital of Zhejiang University School of MedicineJinhua 321000China

Dear editor,Shrinking lung syndrome(SLS),a rare complication of autoimmune inflammatory diseases,is mainly associated with systemic lupus erythematosus(SLE),with an occurrence in 1%-2%of cases.^([1])It is characterized by restrictive defects on pulmonary function tests(PFTs)associated with reduced lung *** has also been reported in cases of primary Sjogren syndrome(pSS),^([2,3])scleroderma,^([4])rheumatoid arthritis,^([5])mixed connective tissue disease,⑹and undifferentiated connective tissue ***,we present three case reports of SLS,including two patients with SLE and one patient with adultonset StilFs disease(AOSD)(Table 1).

关键词： lung autoimmune diseases

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

Quantum Teleportation Through a Two-Qubit heisenberg XXZ Chain

引用

Communications in Theoretical Physics 2008年第6期49卷 1435-1438页

作者： GUO Jin-Liang NIE Jing SONG he-shan School of Physics and Optoelectronic Technology Dalian University of Technology Dalian 116024 China

We consider a two-qubit heisenberg XXZ chain as a resource for quantum teleportation via the standard teleportation protocol To. The effects of anisotropic on teleportation fidelity and entanglement are studied in detail. We find anisotropic not only improves the criticM temperature Tc and criticM magnetic field Bc, beyond which quantum teleportation is inferior to classicM communication protocol, but also enhances the fidelity for fixed magnetic field B and temperature T. For entanglement teleportation, the effects of magnetic field on average fidelity and output entanglement are studied.

关键词： thermal entanglement negativity two-qubit heisenberg XXZ chain

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

Decoherence of a Quantum Nonlinear Oscillator Under a Non-zero Temperature Thermal Bath

引用

Communications in Theoretical Physics 2006年第3期45卷 542-546页

作者： HAN Li-Ping ZHOU Ling SONG he-shan Department of Physics Dalian University of Technology Dalian 116023 China

The characteristic time τD for decoherence process of a quantum nonlinear oscillator system under a nonzero temperature thermal bath is studied by expanding the linear entropy. By numerical analysis, it is shown that at a non-zero temperature, the quantum coherence decays much faster than at zero temperature. Moreover, the non-zero temperature thermal bath will bring a crucial suppression to the quantum effects of the observables, which causes these quantum effects to become unable to persist up to the Ehrenfest time but is insufticient to destroy the quantum-classical transition.

关键词： quantum nonlinear oscillator linear entropy decoherence timscale

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

Controlled Secure Quantum Dialogue Using a Pure Entangled GHZ States

引用

Communications in Theoretical Physics 2007年第5X期48卷 841-846页

作者： XIA Yan SONG Jie NIE Jing SONG he-shan School of Physics and Optoelectronic Technology Dalian University of Technology Dalian 116024 China

We present a controlled secure quantum dialogue protocol using a non-maximally （pure） entangled Greenberger-Horne-Zeibinger （GHZ） states at first, and then discuss the requirements for a real quantum dialogue. We show that the authorized two users can exchange their secret messages after purifying the non-maximally entangled GHZ states quantum channel unconditionally securely and simultaneously under the control of a third party.

关键词： controlled secure quantum dialogue eavesdropper non-maximally entangled GHZ state

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

Elementary Quantum Gates Based on Intrinsic Interaction Hamiltonian

引用

Communications in Theoretical Physics 2006年第1X期46卷 69-72页

作者： CheN Jing YU Chang-Shui SONG he-shan Department of Physics Dalian University of Technology Dalian 116023 China

A kind of new operators, the generalized pseudo-spin operators are introduced and a universad intrinsic Hamiltonian of two-qubit interaction is studied in terms of the generalized pseudo-spin operators. A fundamental quantum gate U（θ） is constructed based on the universal Hamiltonian and shown that the roles of the new quantum gate U （θ） is equivalent, functionally, to the joint operation of Hadamard and C-Not gates.

关键词： quantum gate intrinsic Hamiltonian

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

Controllable blood–brain barrier(BBB)regulation based on gigahertz acoustic streaming

引用

Nanotechnology and Precision Engineering 2022年第4期5卷 1-7页

作者： Hang Qi Shuaihua Zhang Jiaxue Liang shan he Yanyan Wang State Key Laboratory of Precision Measuring Technology and Instruments School of Precision Instrument and Opto-Electronics EngineeringTianjin UniversityTianjin 300072China

The blood–brain barrier(BBB)is a structural and functional barrier necessary for brain homeostasis,and it plays an important role in the realization of neural function and in protecting the brain from damage by circulating toxins and ***,the extremely dense BBB also severely limits the transport of molecules across it,which is a great hindrance to the diagnosis and treatment of central nervous system(CNS)*** paper reports a new method for controllable opening of the BBB,based on the gigahertz acoustic streaming(AS)generated by a bulk acoustic wave resonant *** adjusting the input power and working distance of the device,AS with tunable flow rate can be generated to disrupt tight junction proteins(TJs)between endothelial *** results obtained with this method show that the gigahertz AS promotes the penetration of dextran molecules with different molecular weights across the *** work provides a new platform for studying the mechanical regulation of BBB by fluid shear forces and a new method for improving the efficiency of drug delivery.

关键词： Blood–brain barrier Mechanical regulation Drug delivery Bulk acoustic wave Acoustic streaming

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

Teleportations of Mixed States and Multipartite Quantum States

引用

Communications in Theoretical Physics 2007年第6期47卷 1041-1044页

作者： YU Chang-Shui WANG Ya-Hong SONG he-shan Department of Physic＇s Dalian University of Technology Dalian 116024 China School of Information Science and Engineering Dalian Institute of Light Industry Dalian 116034 China

In this paper, we propose a protocol to deterministically teleport an unknown mixed state of qubit by utilizing a maximally bipartite entangled state of qubits as quantum channel. Ira non-maximally entangled bipartite pure state is employed as quantum channel, the unknown mixed quantum state of qubit can be teleported with 1 -√ 1- C^2 probability, where C is the concurrence of the quantum channel. The protocol can also be generalized to teleport a mixed state of qudit or a multipartite mixed state. More important purpose is that, on the basis of the protocol, the teleportation of an arbitrary multipartite （pure or mixed） quantum state can be decomposed into the teleportation of each subsystem by employing separate entangled states as quantum channels. In the case of deterministic teleportation, Bob only needs to perform unitary transformations on his single particles in order to recover the initial teleported multipartite quantum state.

关键词： teleportation mixed state multipartite quantum state

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

A QCD Model Using Generalized Yang-Mills Theory

引用

Communications in Theoretical Physics 2007年第4期47卷 685-689页

作者： WANG Dian-Fu SONG he-shan KOU Li-Na Department of Physics Dalian Maritime University Dalian 116026 China Department of Physics Dalian University of Technology Dalian 116024 China

Generalized Yang-Mills theory has a covariant derivative, which contains both vector and scalar gauge bosons. Based on this theory, we construct a strong interaction model by using the group U（4）. By using this U（4） generalized Yang-Mills model, we also obtain a gauge potential solution, which can be used to explain the asymptotic behavior and color confinement.

关键词： QCD model Yang-Mills theory

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：