未成年人养成教育中的家庭责任

养成教育是良好道德品质和行为习惯的训练和习得过程,也是家庭在未成年人思想道德建设中的重要责任.本文从养成教育特点的分析出发,阐述了家庭教育的责任和父母在养成教育中的目标导向、行为示范、效果强化、偏差矫正等作用,从教育内容、教育途径、教育对象等方面,提出家庭在养成教育中的新使命.     

西部民族地区法制政府建设的基层实践——以四川松潘川主寺镇法治示范镇工程为例

以法制政府建设为中心的基层社会治理法治化转型是民族区域社会治理的新常态,将极大推动西部民族地区基层社会治理体系和治理能力的现代化。川主寺镇的“法治示范镇”建设工程实践包括以书纪挂帅的组织体系建设、以会前学法和法制宣传为中心的法治思想建设、以依法行政和“权力清单”为主要内容的法治政府规范建设、以平安社区和“三调联动”为基础的和谐社会建设。川主寺镇法治国家建设生动的基层案例,为了解民族地区基层法制政府建设工程及社会治理转型提供了客观依据,也奠定了这一实践解读的理论框架。     

Flood Footprint Assessment: A Multiregional Case of 2009 Central European Floods

Hydrometeorological phenomena have increased in intensity and frequency in last decades, with Europe as one of the most affected areas. This accounts for considerable economic losses in the region. Regional adaptation strategies for costs minimization require a comprehensive assessment of the disasters’ economic impacts at a multiple-region scale. This article adapts the flood footprint method for multiple-region assessment of total economic impact and applies it to the 2009 Central European Floods event. The flood footprint is an impact accounting framework based on the input–output methodology to economically assess the physical damage (direct) and production shortfalls (indirect) within a region and wider economic networks, caused by a climate disaster. Here, the model is extended through the capital matrix, to enable diverse recovery strategies. According to the results, indirect losses represent a considerable proportion of the total costs of a natural disaster, and most of them occur in nonhighly directly impacted industries. For the 2009 Central European Floods, the indirect losses represent 65% out of total, and 70% of it comes from four industries: business services, manufacture general, construction, and commerce. Additionally, results show that more industrialized economies would suffer more indirect losses than less-industrialized ones, in spite of being less vulnerable to direct shocks. This may link to their specific economic structures of high capital-intensity and strong interindustrial linkages.     

Post model-fitting exploration via a “Next-Door” analysis

We propose a simple method for evaluating the model that has been chosen by an adaptive regression procedure, our main focus being the lasso. This procedure deletes each chosen predictor and refits the lasso to get a set of models that are “close” to the chosen “base model,” and compares the error rates of the base model with that of nearby models. If the deletion of a predictor leads to significant deterioration in the model's predictive power, the predictor is called indispensable; otherwise, the nearby model is called acceptable and can serve as a good alternative to the base model. This provides both an assessment of the predictive contribution of each variable and a set of alternative models that may be used in place of the chosen model. We call this procedure “Next-Door analysis” since it examines models “next” to the base model. It can be applied to supervised learning problems with ℓ₁ penalization and stepwise procedures. We have implemented it in the R language as a library to accompany the well-known glmnet library. The Canadian Journal of Statistics 48: 447–470; 2020 © 2020 Statistical Society of Canada     

赔付率约束下的中国保险公司效率与全要素生产率研究

运用SBM(slack-based measure)方向性距离函数分别计算了赔付率约束下的2006-2016年中国境内的财产保险公司、人身保险公司的经营无效率值,并对无效率值的来源进行分解。在此基础上运用Luenberger生产率指数计算出全要素生产率及其分解项,对中资、外资保险公司的经营效率、全要素生产率及其分解项进行了对比分析。结果表明:财险业的中资大型公司经营效率最高,人身险业的中资公司经营效率明显高于外资公司;投资收益无效率是造成中小型人身险公司和中小型财产险公司无效率的最主要原因;财险业大型公司的全要素生产率低于中小型公司,而人身险业外资公司的全要素生产率明显高于中资公司。     

新形势下发展两岸关系的战略性思考

台湾问题既是中国的内部问题,同时又是一个重大国际战略问题。观察、思考和处理台湾问题需要有全局性、战略性的大视野,从中华民族长远根本利益出发,在和平发展总体战略下谋篇布局,把对台政策建立在对新形势下两岸关系的正确判断、对台湾岛内主流民意与政党政策的科学分析、对外部干涉国家的战略意图的准确判断之上。     

基于压缩感知的MIMO-OFDM系统稀疏信道估计方法

在多输入多输出正交频分复用(MIMO-OFDM)系统中,信号经过频率选择性衰落的信道后,在接收端需要进行均衡和相干信号的检测,故准确的信道估计量必不可少。传统的信道估计方法均基于信道抽头是密集型的假设,利用线性重构算法,如最小二乘(LS)或最小均方误差(MMSE)等,可以达到Cramer-Rao下界(CRLB)。然而,通过物理信道测量发现,在实际通信系统中,宽带信道抽头分布通常表现出稀疏特性。通过充分利用信道的稀疏特性,该文将压缩感知中的CoSaMP重构算法应用于MIMO-OFDM系统的稀疏多径信道估计。在达到与传统的信道估计方法相同性能的前提下,基于CoSaMP的信道估计方法以非常小的计算复杂度为代价,大大减少了导频信号开销,从而提高了频谱资源利用率。     

基于语料库的情态语义类型和中国EFL学习者英语水平相关性研究

长期以来,情态一直被认为是人类语言与思维最难把握但同时却又最基本的范畴之一,当然对于研究者而言也是一个既复杂又棘手的问题。选择WECCL2.0作为被观察的语料库,LOC-NESS作为参照语料库,分析中国EFL学习者中初级组和高级组在义务类情态序列和认识类情态序列的使用是否存在显著性差异。研究发现,中国EFL学习者中水平越低越倾向于使用义务类情态序列,认识情态的使用能力则随着语言水平的提高而提高,因此在实际的英语教学中应该重视情态序列特别是认识类情态序列的教学。     

网络城市的形成机制、研究方法及对城市发展的影响——一个研究综述

伴随着世界经济的快速发展,区域—城市地域出现了区别于传统城市群理念的新的空间组织形式,即网络城市.这种空间组织形式摆脱了以往孤立的单中心或以等级体系分工的城市组织模式,强调多中心,网络化特征,城市具有更大的发展灵活性和自由度.文章从网络城市的概念入手进而分析了网络城市形成的动力机制、途径及过程.对于测度城市关联性的方法进行总结归纳,同时指出网络城市体系对于城市发展产生的影响,最后进行小结并提出城市体系建设的方向.     

Elections,Repertoires of Contention and Habitus in Four Civil Society Engagements in Malaysia's 2008 General Elections

The general elections in Malaysia in 2008 saw the ruling coalition, which has ruled Malaysia uninterrupted since independence in 1957, lose control of a number of states and become significantly weakened at the federal level. Amongst the reasons often cited for this was significant and diverse civil society participation in these elections which was often critical of the incumbent government. This article examines four different engagements in the 2008 elections by civil society actors. Through this examination, it is demonstrated that distinctions between types of collective action, from social movements to political parties, are especially likely to be blurred in the context of repressive states such as Malaysia. This examination in turn sees Charles Tilly's concept of repertoires of contention defended against both Nick Crossley's criticisms of it and his preference of Pierre Bourdieu's concept of habitus.