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The Biorthogonality of Multiple Vector-valued Bivariate Wavelet Packets
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作者 CHEN Shao-dong HUANG Na 《Chinese Quarterly Journal of Mathematics》 CSCD 2010年第2期208-213,共6页
The notion of a sort of biorthogonal multiple vector-valued bivariate wavelet packets,which are associated with a quantity dilation matrix,is introduced.The biorthogonality property of the multiple vector-valued wavel... The notion of a sort of biorthogonal multiple vector-valued bivariate wavelet packets,which are associated with a quantity dilation matrix,is introduced.The biorthogonality property of the multiple vector-valued wavelet packets in higher dimensions is studied by means of Fourier transform and integral transform biorthogonality formulas concerning these wavelet packets are obtained. 展开更多
关键词 BIVARIATE multiple vector-valued multiresolution analysis multiple vectorvalued scaling function multiple vector-valued wavelet packets biorthogonality
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全长cDNA文库构建技术Vector-Capping法及其应用进展 被引量:2
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作者 韩慧霞 王鲁 陆洪光 《医学综述》 2010年第22期3378-3380,共3页
全长cDNA文库是目前基因鉴定、基因启动子区确定和功能基因组研究的必要工具,为快速、高效获得完整的基因全序列信息提供了有效途径。高质量的全长cDNA文库要求较高比例的大片段全长cDNA克隆。Vector-Capping正是一种简单而有效的构建... 全长cDNA文库是目前基因鉴定、基因启动子区确定和功能基因组研究的必要工具,为快速、高效获得完整的基因全序列信息提供了有效途径。高质量的全长cDNA文库要求较高比例的大片段全长cDNA克隆。Vector-Capping正是一种简单而有效的构建高质量全长cDNA文库的方法。在此重点阐述Vector-Capping法的建库依据、技术流程、特点和应用进展。 展开更多
关键词 全长CDNA文库 vector-Capping 构建
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A∞ weight estimates for vector-valued commutators of multilinear fractional integral 被引量:3
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作者 YU Xiao CHEN Jie-cheng ZHANG Yan-dan 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2013年第3期335-357,共23页
In this paper, the authors get the Coifman type weighted estimates and weak weighted LlogL estimates for vector-valued generalized commutators of multilinear fractional integral with w ∈ A∞. Furthermore, both the bo... In this paper, the authors get the Coifman type weighted estimates and weak weighted LlogL estimates for vector-valued generalized commutators of multilinear fractional integral with w ∈ A∞. Furthermore, both the boundedness of vector-valued multilinear frac- tional integral and the weak weighted LlogL estimates for vector-valued multilinear fractional integral are also obtained. 展开更多
关键词 vector-VALUED COMMUTATOR multilineax fractional integral weighted.
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Vector-intensity measure based seismic vulnerability analysis of bridge structures 被引量:8
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作者 Li Zhongxian Li Yang Li Ning 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2014年第4期695-705,共11页
This paper presents a method for seismic vulnerability analysis of bridge structures based on vector-valued intensity measure (viM), which predicts the limit-state capacities efficiently with multi-intensity measure... This paper presents a method for seismic vulnerability analysis of bridge structures based on vector-valued intensity measure (viM), which predicts the limit-state capacities efficiently with multi-intensity measures of seismic event. Accounting for the uncertainties of the bridge model, ten single-bent overpass bridge structures are taken as samples statistically using Latin hypercube sampling approach. 200 earthquake records are chosen randomly for the uncertainties of ground motions according to the site condition of the bridges. The uncertainties of structural capacity and seismic demand are evaluated with the ratios of demand to capacity in different damage state. By comparing the relative importance of different intensity measures, Sa(T1) and Sa(T2) are chosen as viM. Then, the vector-valued fragility functions of different bridge components are developed. Finally, the system-level vulnerability of the bridge based on viM is studied with Duunett- Sobel class correlation matrix which can consider the correlation effects of different bridge components. The study indicates that an increment IMs from a scalar IM to viM results in a significant reduction in the dispersion of fragility functions and in the uncertainties in evaluating earthquake risk. The feasibility and validity of the proposed vulnerability analysis method is validated and the bridge is more vulnerable than any components. 展开更多
关键词 bridge structure seismic vulnerability analysis vector-valued intensity measure components' correlation system vulnerability
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ADAPTIVE PINNING SYNCHRONIZATION OF COUPLED NEURAL NETWORKS WITH MIXED DELAYS AND VECTOR-FORM STOCHASTIC PERTURBATIONS 被引量:4
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作者 杨鑫松 曹进德 《Acta Mathematica Scientia》 SCIE CSCD 2012年第3期955-977,共23页
In this article, we consider the global chaotic synchronization of general cou- pled neural networks, in which subsystems have both discrete and distributed delays. Stochastic perturbations between subsystems are also... In this article, we consider the global chaotic synchronization of general cou- pled neural networks, in which subsystems have both discrete and distributed delays. Stochastic perturbations between subsystems are also considered. On the basis of two sim- ple adaptive pinning feedback control schemes, Lyapunov functional method, and stochas- tic analysis approach, several sufficient conditions are developed to guarantee global syn- chronization of the coupled neural networks with two kinds of delay couplings, even if only partial states of the nodes are coupled. The outer-coupling matrices may be symmetric or asymmetric. Unlike existing results that an isolate node is introduced as the pinning target, we pin to help the network realizing synchronization without introducing any iso- late node when the network is not synchronized. As a by product, sufficient conditions under which the network realizes synchronization without control are derived. Numerical simulations confirm the effectiveness of the obtained results. 展开更多
关键词 Coupled neural networks mixed delays SYNCHRONIZATION vector-form noises PINNING ADAPTIVE asymmetric coupling
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Far-field vector-diffraction of off-axis parabolic mirror under oblique incidence 被引量:2
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作者 Xia-Hui Zeng Xi-Yao Chen 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第3期190-201,共12页
Based on a full vector-diffraction theory, a detailed theoretical study is carried out, aiming at providing a clear insight into the effects of different focusing and off-axis parabola parameters on far-field vector-d... Based on a full vector-diffraction theory, a detailed theoretical study is carried out, aiming at providing a clear insight into the effects of different focusing and off-axis parabola parameters on far-field vector-diffraction properties of an offaxis parabolic mirror in the presence of misalignments of the incoming beam. The physical origin of these effects is also explored. The results show that the far-field intensity profile is altered by the distortion-, coma-, and astigmatism-like aberrations, which are caused by oblique incidence rather than inherent aberrations for the off-axis configuration. The radius of 90% encircled energy also increases but does not change monotonically with incident beam size increasing, or rather,it first decreases and then increases. The focal shift strongly depends on the effective focal length and oblique incidence angle, but it is almost independent of the beam size, which affects the focusing spot patterns. The intensity distribution produces a higher astigmatic image with off-axis angle increasing. Coma-like aberration starts to become dominant with beam size increasing and results in larger curved propagation trajectory. The incident polarization also affects the intensity distribution. The variation in the Strehl ratio with oblique incidence angle strongly depends on the misalignment direction and beam size as well. In addition, we find that the difference in locus between the catacaustic and the diffraction focus in the meridian is small. But the locus of the sagittal foci is obviously different from the locus of the meridian foci and the catacaustic focus. Moreover, the peak intensity of the sagittal focus is maximum, and the ratio of the peak intensity to that in the meridian plane is approximately 1.5. Understanding these effects is valuable for assessing a practical focused intensity and describing the motion of charged particles under a strong electric field in ultraintense laser–matter interaction. 展开更多
关键词 laser beam focusing OFF-AXIS PARABOLIC MIRROR vector-diffraction theory oblique incidence
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A CLASS OF COMPOUND VECTOR-VALUED PROBLEM AND FACTORIZATION OF MATRIX FUNCTION 被引量:2
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作者 郭国安 杜金元 《Acta Mathematica Scientia》 SCIE CSCD 2010年第1期173-179,共7页
In this article, we consider a class of compound vector-valued problem on upper-half plane C+, which consists of vector Riemann problem along a closed contour in C+ with matrix coefficient in H61der class and vector... In this article, we consider a class of compound vector-valued problem on upper-half plane C+, which consists of vector Riemann problem along a closed contour in C+ with matrix coefficient in H61der class and vector Hilbert problem on the real axis with essential bounded measurable matrix coefficient. Under appropriate assumption we obtain its solution by use of Corona theorem and factorization of matrix functions in decomposed Banach algebras. 展开更多
关键词 compound vector-valued problem Corona theorem canonical factorization Hardy space
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Serological investigation of vector-borne disease in dogs from rural areas of China 被引量:3
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作者 Shiwen Wang Jing He Lijuan Zhang 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2012年第2期102-103,共2页
Objective:To evaluate the Anaplasma phagocytophilum(A.phagocytophilum),Ehrlichia canis(E.canis,Dirofilaria immitis(D.immitis)(canine heartworm),Borrelia burgdorferi(B.burgdorferi)infections in countryside dogs from Yu... Objective:To evaluate the Anaplasma phagocytophilum(A.phagocytophilum),Ehrlichia canis(E.canis,Dirofilaria immitis(D.immitis)(canine heartworm),Borrelia burgdorferi(B.burgdorferi)infections in countryside dogs from Yunnan,Hainan and Anhui provinces.Methods:Serum samples were collected from 26 dogs in Yunnan.Hainan and Anhui provinces.The samples were tested using a commercial ELISA rapid diagnostic assay kit(SNAP^(?)4Dx^(?);IDEXX Laboratories,Inc.U.S.A.).Meaiiwliile,indirect immunofluorescence assay(IFA)recommended by WHO was conducted to delect IgG to A.phagocytophilum.Two methods were analyzed and compared.Results:The number of serologically positive dogs for IgG to A.phagocytophilum was only 2which was from Hainan province and none of the 26 dogs responded positive for E.canu.D.immitis(canine heartworm,and B.burgdorferi by ELISA rapid diagnostic method.The number of serologically positive dogs for IgG to A.phagocytophilum was 13(50%)by IFA method.Data of the two methods were analyzed by statistical software and the difference was statistically significant(P=0.002).Conclusions:It can be concluded that IFA method was more sensitive than ELISA rapid diagnostic method.However,we need conduct further and intensive epidemiology survey on tick-born diseases pathogens including.4.phagocytophilum,E.canis,D.immitis(canine heartworm),and B.burgdorferi which have public health significance. 展开更多
关键词 ANAPLASMA phagocytophilum EHRLICHIA canis BORRELIA BURGDORFERI DIROFILARIA immitis DOGS China vector-borne disease Serological investigation ELISA rapid diagnostic assay
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Global Dynamic Analysis of a Vector-Borne Plant Disease Model with Discontinuous Treatment 被引量:1
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作者 Hengmin Lv Lizhi Fei +1 位作者 Zhen Yuan Fumin Zhang 《Applied Mathematics》 2018年第5期496-511,共16页
This paper proposes a vector-borne plant disease model with discontinuous treatment strategies. Constructing Lyapunov function and applying non-smooth theory to analyze discontinuous differential equations, the basic ... This paper proposes a vector-borne plant disease model with discontinuous treatment strategies. Constructing Lyapunov function and applying non-smooth theory to analyze discontinuous differential equations, the basic reproductive number R0 is proved, which determines whether the plant disease will be extinct or not. If R0 R0 > 1 , there exists a unique endemic equilibrium which is globally stable. The numerical simulations are provided to verify our theoretical results, which indicate that after infective individuals reach some level, strengthening treatment measures is proved to be beneficial in controlling disease transmission. 展开更多
关键词 vector-Borne PLANT Disease Model Basic REPRODUCTION Number DISCONTINUOUS Treatment
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COMPOSITION OPERATORS ON ANALYTIC VECTOR-VALUED NEVANLINNA CLASSES
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作者 王茂发 《Acta Mathematica Scientia》 SCIE CSCD 2005年第4期771-780,共10页
Let φ be an analytic self-map of the complex unit disk and X a Banach space. This paper studies the action of composition operator Cφ: f→foφ on the vector-valued Nevanlinna classes N(X) and Na(X). Certain cri... Let φ be an analytic self-map of the complex unit disk and X a Banach space. This paper studies the action of composition operator Cφ: f→foφ on the vector-valued Nevanlinna classes N(X) and Na(X). Certain criteria for such operators to be weakly compact are given. As a consequence, this paper shows that the composition operator Cφ is weakly compact on N(X) and Na(X) if and only if it is weakly compact on the vector-valued Hardy space H^1 (X) and Bergman space B1(X) respectively. 展开更多
关键词 Composition operator BOUNDEDNESS weak compactness Carleson measure vector-valued Nevanlinna class
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Relativistic symmetries in the Hulthn scalar-vector-tensor interactions
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作者 Majid Hamzavi Ali Akbar Rajabi 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第8期257-263,共7页
In the presence of spin and pseudospin (p-spin) symmetries, the approximate analytical bound states of the Dirac equation for scalar-vector-tensor Hulth6n potentials are obtained with any arbitrary spin-orbit coupli... In the presence of spin and pseudospin (p-spin) symmetries, the approximate analytical bound states of the Dirac equation for scalar-vector-tensor Hulth6n potentials are obtained with any arbitrary spin-orbit coupling number using the Pekeris approximation. The Hulth6n tensor interaction is studied instead of the commonly used Coulomb or linear terms. The generalized parametric Nikiforov-Uvarov (NU) method is used to obtain energy eigenvalues and corresponding wave functions in their closed forms. It is shown that tensor interaction removes degeneracy between spin and p-spin doublets. Some numerical results are also given. 展开更多
关键词 Dirac equation Hulth6n scalar-vector-tensor potential spin and p-spin symmetry NU method
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Effective Control Strategies on the Transmission Dynamics of a Vector-Borne Disease
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作者 Saddam Hossain Jannatum Nayeem Chandranath Podder 《Open Journal of Modelling and Simulation》 2015年第3期111-119,共9页
In this paper, we have rigorously analyzed a model to find the effective control strategies on the transmission dynamics of a vector-borne disease. It is proved that the global dynamics of the disease are completely d... In this paper, we have rigorously analyzed a model to find the effective control strategies on the transmission dynamics of a vector-borne disease. It is proved that the global dynamics of the disease are completely determined by the basic reproduction number. The numerical simulations (using MatLab and Maple) of the model reveal that the precautionary measures at the aquatic and adult stage decrease the number of new cases of dengue virus. Numerical simulation indicates that if we take the precautionary measures seriously then it would be more effective than even giving the treatment to the infected individuals. 展开更多
关键词 vector-Borne DISEASE DENGUE REPRODUCTION Number Force of INFECTION Control Strategies
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An Agent-Based Model for Studying the Impact of Herd Mobility on the Spread of Vector-Borne Diseases: The Case of Rift Valley Fever (Ferlo Senegal)
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作者 Python Ndekou T. Paul Alassane Bah +1 位作者 Papa Ibrahima Ndiaye Jacques André Ndione 《Open Journal of Modelling and Simulation》 2014年第3期97-111,共15页
Vector-borne diseases are highly sensitive to environment and to environmental changes. Rift Valley Fever (RFV) is a mosquito-borne zootic virus associated with severe diseases in human beings and economic consequence... Vector-borne diseases are highly sensitive to environment and to environmental changes. Rift Valley Fever (RFV) is a mosquito-borne zootic virus associated with severe diseases in human beings and economic consequences to livestock sector. Animal and human movements have a fundamental impact on RVF transmission. In recent years, there has been a growing interest in the use of mathematics and agent based models to represent and analyze the dynamic of RFV transmission. However, no previous study has taken into consideration animal herds’ mobility and precipitation factors to understand the disease spread. This limitation underlines the necessity to use computational model approach based on multi-agent system in the study of vector-borne diseases transmission and diffusion. In this paper, a multi-agent system combining conceptual model expressiveness is used to study animal herds’ mobility and the precipitation parameter impact on the Rift Valley Fever outbreak in Ferlo Barkedji in Northern Senegal. Simulation scenarios with various parameters, including rain quality, hosts, vectors, camp dispersal around ponds, etc., are unrolled. The different results we have obtained show that the evolution of the number of infected hosts and infected vectors depend on the degree of animal herds’ mobility and on precipitations. Our model provides a framework that permits predicting the spread of the disease associated with the mobility of animal herds. 展开更多
关键词 vector-Borne DISEASES RIFT VALLEY FEVER Multi-Agent System DISEASES Modeling Agent Based
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Axiomatic Affine Unification with Large Gravitational Vector Field Yields Vector-Metric Theory of Gravitation, Electromagnetism and Field Description of Mass-Particles
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作者 Boris Hikin 《Journal of High Energy Physics, Gravitation and Cosmology》 2017年第2期178-247,共70页
Under assumption of existence of extremely large gravitational vector field, this paper proposes a road map for building an Axiomatic Eddington Affine Unification theory yielding both Maxwell’s electromagnetism and V... Under assumption of existence of extremely large gravitational vector field, this paper proposes a road map for building an Axiomatic Eddington Affine Unification theory yielding both Maxwell’s electromagnetism and Vector-metric theory of gravitation, in which inverse of the square-magnitude of the vector serves as Newton’s gravitational constant. The dependence of the vector’s magnitude with distance may offer an explanation of both Pioneer anomaly and “star rotation abnormality” in some Galaxies. In addition, the theory provides formalism for a classical description of atomic particles (such as protons and electrons) with highly non-linear equations and highly localized solutions. The existence of large Gravitational vector field can, for some variables (sub-fields), lead to elliptical type?differential equations (unlike in Maxwell’s electromagnetism, which is hyperbolic ), that by its nature forbids the existence independent waves and their propagation. Proposed Unified field description might provide the avenue for smooth transition to the world Quantum physics. 展开更多
关键词 General Relativity AFFINE Unification vector-Metric GRAVITATION GRAVITATIONAL Constant Emerging GRAVITATION LARGE GRAVITATIONAL FIELD Dark Matter
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Two-Parameter Vector-Valued Martingales and Geometrical Properties of Banach Spaces 被引量:6
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作者 Cheng Ri-yan Gan Shi-xin 《Wuhan University Journal of Natural Sciences》 CAS 1999年第2期16-23,共8页
We obtained a number of inequalities and laws of large numbers for two parameter vector valued martingales.In the other direction we characterized p smoothness and q convexity of Banach spaces by using the... We obtained a number of inequalities and laws of large numbers for two parameter vector valued martingales.In the other direction we characterized p smoothness and q convexity of Banach spaces by using these inequalities and laws of large numbers for two parameter vector valued martingales. 展开更多
关键词 two parameter vector valued martingle inequality law of large numbers p smoothness q convexity
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Immunological tolerance of human hepatocyte xenograft induced by adenovirus vector-mediated CTLA4Ig gene transfer 被引量:2
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作者 Yao-Kai Chen,Xiao-Cong Liu,Jun-Gang Li,Guo-Dong Liu,Yan Guo,Ling Cheng and Yu-Ming Wang Institute of Infectious Diseases, Southwest Hospital, Third Military Medical University, Chongqing 400038, China and Department of Digestive Diseases, General Hospital of Chengdu Military Command, Chengdu 610083, China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2012年第2期148-153,共6页
BACKGROUND:Systemic administration of CTLA4Ig has been applied in inducing immunological tolerance of hepatocyte implants,but has potential for systemic immune inhibition.This study was designed to induce hepatocyte i... BACKGROUND:Systemic administration of CTLA4Ig has been applied in inducing immunological tolerance of hepatocyte implants,but has potential for systemic immune inhibition.This study was designed to induce hepatocyte immunological tolerance by locally expressing CTLA4Ig in an attempt to improve the effectiveness of cell transplantation.METHODS:A normal human liver cell line(L02) was transfected with adenovirus vector containing the CTLA4Ig gene(Ad-CTLA4Ig-EGFP) in vitro,and the expression of CTLA4Ig by transfected cells was assessed by fluorescent imaging and immunocytochemical staining.Transfected cells then were injected into the spleen of Sprague-Dawley rats,the survival of cells was determined by immunohistochemistry,and the immune status was examined through CD4 + and CD69 + T cellcounts and ELISA detection of IL-2 in peripheral blood.RESULTS:L02 cells expressed CTLA4Ig in the cytoplasm for >4 weeks.Surviving L02 cells were observed in the experimental group at 3 and 4 weeks post-transplantation,while none was detected in the control group.Furthermore,the percentages of CD4 + and CD4 + CD69 + T cells in the CTLA4-transfected group were 24.5% and 45.1%,markedly lower than those in the control group at 4 weeks post-transplantation(P<0.01).Furthermore,the IL-2 level was also lower in the CTLA4transfected group than in the control group.CONCLUSION:Adenovirus-mediated CTLA4Ig gene transfer into human hepatocytes has the potential to become an effective method of inducing immunological tolerance in hepatocyte transplantation. 展开更多
关键词 CTLA4IG adenovirus vectors hepatocyte transplantation immune tolerance graft rejection
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Characteristics and advantages of adeno-associated virus vector-mediated gene therapy for neurodegenerative diseases 被引量:6
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作者 Yuan Qu Yi Liu +2 位作者 Ahmed Fayyaz Noor Johnathan Tran Rui Li 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第6期931-938,共8页
Common neurodegenerative diseases of the central nervous system are characterized by progressive damage to the function of neurons, even leading to the permanent loss of function. Gene therapy via gene replacement or ... Common neurodegenerative diseases of the central nervous system are characterized by progressive damage to the function of neurons, even leading to the permanent loss of function. Gene therapy via gene replacement or gene correction provides the potential for transformative therapies to delay or possibly stop further progression of the neurodegenerative disease in affected patients. Adeno-associated virus has been the vector of choice in recent clinical trials of therapies for neurodegenerative diseases due to its safety and efficiency in mediating gene transfer to the central nervous system. This review aims to discuss and summarize the progress and clinical applications of adeno-associated virus in neurodegenerative disease in central nervous system. Results from some clinical trials and successful cases of central neurodegenerative diseases deserve further study and exploration. 展开更多
关键词 nerve REGENERATION central nervous system gene therapy NEURODEGENERATIVE DISEASE viral vector ADENO-ASSOCIATED virus Alzheimer’s DISEASE Parkinson’s DISEASE Huntington’s DISEASE amyotrophic lateral SCLEROSIS spinal muscular atrophy neural REGENERATION
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Composition Operators with Linear Fractional Symbols on Vector-Valued Bergman Spaces 被引量:1
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作者 WangMao-fa UuPei-de ZhouShao-bo 《Wuhan University Journal of Natural Sciences》 CAS 2003年第03A期759-764,共6页
Let φ and ψ be linear fractional self\|maps of the unit disk D and X a separable Hilbert space. In this paper we completely characterize the weak compactness of the product operators of a composition operation C φ... Let φ and ψ be linear fractional self\|maps of the unit disk D and X a separable Hilbert space. In this paper we completely characterize the weak compactness of the product operators of a composition operation C φ with another one's adjoint C * ψ on the vector\|valued Bergman space B 1(X) for forms C φC * ψ and C * ψC φ. 展开更多
关键词 vector\|valued Bergman space composition operator linear fractional map angular derivative weak compactness
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A New Vector-Valued Padé-Type Approximation in the Inner Space
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作者 Chunjing Li 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2006年第2期127-136,共10页
A new vector-valued Pad′e-type approximation is defined by introducing a gener- alized vector-valued linear functional from a scalar polynomial space to a vector space. Some algebraic properties and error formulas ar... A new vector-valued Pad′e-type approximation is defined by introducing a gener- alized vector-valued linear functional from a scalar polynomial space to a vector space. Some algebraic properties and error formulas are presented. The expressions of this Pad′e-type ap- proximants are provided with the generating function form and the determinant form. 展开更多
关键词 逼近 内部空间 标量多项式空间 向量估计
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An Implicitly Restarted Block Arnoldi Method in a Vector-Wise Fashion
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作者 Qian Yin Linzhang Lu 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2006年第3期268-277,共10页
In this paper, we develop an implicitly restarted block Arnoldi algorithm in a vector-wise fashion. The vector-wise construction greatly simplifies both the detection of necessary deflation and the actual deflation it... In this paper, we develop an implicitly restarted block Arnoldi algorithm in a vector-wise fashion. The vector-wise construction greatly simplifies both the detection of necessary deflation and the actual deflation itself, so it is preferable to the block-wise construction. The numerical experiment shows that our algorithm is effective. 展开更多
关键词 IRAM Arnoldi算法 隐启动 Krylov方法
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