区域金融集聚与企业创新效率:基于动态面板数据模型的实证分析

基于我国区域金融差异化发展的视角,深入探究了区域金融集聚对企业创新效率的影响机理,并利用动态面板数据模型,选取了1997—2014年30个省(市、区)的相关数据对不同区域的影响程度进行实证研究.结果表明:金融集聚对企业创新效率具有显著的正向效应,但不同区域的影响程度却存在着显著差异,东部地区远大于中、西部地区,中部地区略高于西部地区.     

科技型人才区域分布差异及其效应

 以灰色系统理论为依据,探讨了中国区域科技型人才分布不均衡问题,计算了影响区域分布不均衡的主要因素;建立了科技型人才的灰色系统预测模型,对中国区域科技型人才数量进行模拟和预测。结果显示,区域差异马太效应明显,虹吸效应影响持续存在,木桶短板危险性增加。建议东部地区调整吸引人才的政策措施,探索新型城市发展道路;中、西部地区提升自身经济发展,完善社会保障体系;促进区域间科技型人才相互融通补充。     

中国区域创新能力的空间计量经济研究

通过构建区域创新环境指标体系,并运用空间计量模型,对2004-2007年我国区域创新能力及其影响因素进行实证研究。结果表明：我国区域创新能力的空间依赖性逐步增强,空间集聚现象明显;研发投入、累积知识存量、市场化程度对区域创新能力促进作用显著;人力资本、知识流动能力对区域创新能力的推动作用不明显;金融规模对区域创新能力促进作用的发挥有一定的滞后期,而对外开放在当期对区域创新能力有显著的负面影响。     

长江中上游土地市场化时空格局演变及其影响因素研究

以长江中上游89个市(州)为研究对象,利用土地市场化测算模型测算2005—2019年各市(州)的土地市场化水平,并结合空间自相关分析、地理探测器等空间分析方法来揭示土地市场化水平的时空演变特征及其影响因素,结果表明：2005—2019年,长江中上游地区土地市场化水平呈现出“上升-下降-上升”的变化趋势,呈现出“中游高、上游低”的空间格局;长江中上游地区土地市场化水平具有明显的空间分异特征,土地市场化水平呈现明显的高-低集聚特征,高-高集聚区域由江西省的大部分地区逐渐向湖北的态势演变;低-低集聚区域沿着云南—四川、贵州—云南演变;土地市场化水平受到多因素的共同驱动,经济发展水平、外商投资、财政收入、固定资产投资、二三产业结构都是影响长江中上游土地市场化水平的重要因素,随着时间推移,各因素影响程度明显增强。     

民族自治区流动人口状况与区域经济发展的关联度分析

人口迁移流动是一种引致性变化,而区域经济的发展是导致人口流动的重要驱动力.本文以第五次人口普查数据为主要数据源,对五个民族自治区流动人口的规模、受教育程度进行对比分析;并运用灰色系统理论中灰色关联度研究流动人口与民族地区经济发展的相关性.结论显示,新疆、西藏的流动人口中自治区外迁入比重与自治区内迁入基本持平接近50%,而宁夏流动人口自治区内占比71%、内蒙古、广西流动人口自治区内占比则高达86%.就受教育程度而言,各自治区初中毕业流动人口的占比最高,均在30%以上,而初中以上受教育程度的流动人口占比平均达64%.灰色关联度分析表明民族自治区流动人口与民族区域经济发展具有极高的关联度,民族地区区域内人口流动对经济发展的贡献优于区域间人口流动.     

我国科技创新与金融发展的耦合协同测度——基于 VIF-变异系数的筛选

基于科技创新和金融发展的内涵, 建立了包含 89 个指标的初步评价体系, 并以我国28 个省市的数据为基础, 运用 VIF-变异系数法, 确定了耦合协同测度指标体系. 构建了科技创新与金融发展耦合协同测度模型, 对我国总体及 15 个试点地区近 10 年的科技创新和金融发展进行耦合协同测度及评价. 研究结果表明: 从总体上看, 我国科技创新和金融发展综合发展指数呈上升趋势, 科技创新与金融发展两系统耦合度较低, 耦合协同度由高度不协同发展逐渐转变为低度协同发展; 从区域上看, 试点地区的耦合协同度稳步提高且高于总体水平, 东部地区的耦合协同度高于中西部地区. 这说明试点地区的科技金融发展态势较好, 但东部和中西部地区的科技金融发展存在不同步、不均衡现象.     

我国科技创新与金融发展的耦合协同测度——基于VIF-变异系数的筛选

基于科技创新和金融发展的内涵,建立了包含89个指标的初步评价体系,并以我国28个省市的数据为基础,运用VIF-变异系数法,确定了耦合协同测度指标体系.构建了科技创新与金融发展耦合协同测度模型,对我国总体及15个试点地区近10年的科技创新和金融发展进行耦合协同测度及评价.研究结果表明:从总体上看,我国科技创新和金融发展综合发展指数呈上升趋势,科技创新与金融发展两系统耦合度较低,耦合协同度由高度不协同发展逐渐转变为低度协同发展;从区域上看,试点地区的耦合协同度稳步提高且高于总体水平,东部地区的耦合协同度高于中西部地区.这说明试点地区的科技金融发展态势较好,但东部和中西部地区的科技金融发展存在不同步、不均衡现象.     

云南纵向岭谷区生态安全评价及影响因素分析

根据云南纵向岭谷区生态环境特点,按照层次分析法建立了生态安全评价指标体系.在应用综合指数法评价云南纵向岭谷区生态安全的基础上,引进灰色系统理论的灰色关联分析方法对影响纵向岭谷区14个地、州、市的生态安全主导因素进行了分析评价.研究表明:云南纵向岭谷区生态安全总体状况良好,植被覆盖度、人口自然增长率、水量变化、产业结构、人口素质、水土流失率和开发土地比例是影响生态安全的主要因素;纵向岭谷区内各区域和流域之间生态安全状况存在差异,生态安全综合指数较高的区域和流域分别是西部地区和怒江流域.针对各个地区生态安全状况的差异及影响因素的不同,该区域应因地制宜地进行生态环境管理,保障自然、经济、生态环境协调发展.     

贫困地区民营经济发展现状及影响因素的实证分析

民营经济在区域经济发展中占有重要地位,区域经济发展差距的本质就是民营经济发展的差距.文章通过对贫困地区民营经济在总量、产业分布、融资状况和研发水平等方面的分析,运用灰色关联模型探讨了样本贫困地区的区位、政策、结构、人力资源、思想文化与市场化等因素对贫困地区民营经济发展的影响.研究结果表明,这些因素对贫困地区民营经济发展具有显著影响,但影响程度存在差异.     

资本扭曲影响中国对外直接投资的效应研究

基于2003—2016年29个省份的面板数据,首先测度了各省份资本扭曲程度,并运用GMM动态面板模型,实证检验了资本扭曲对地区对外直接投资的影响。研究发现;一是中国存在资本扭曲现象,且不同区域差异显著;二是区域对外直接投资规模与区域资本扭曲正相关,从东部、中部和西部区域来看,发现东部省份资本扭曲对对外直接投资的影响更为显著,而中部和西部地区的影响并不明显。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with