习近平领导干部家风思想探析

领导干部的家风是党风、政风和社会风尚的风向标。十八大以来,习近平特别重视领导干部家风建设,并从廉德修身、廉德齐家、廉德执政三方面强调并践行领导干部家风思想,形成了新时代习近平干部家风思想的丰富内涵,继承和发展了中国特色社会主义的理论成果,开创了党的建设新局面,党风政风民风家风呈现新气象。     

陕西省普惠性幼儿园发展的现状、问题及对策

为了清楚了解陕西省普惠性学前教育资源发展的情况,采用问卷调查和访谈相结合的方法,以陕西省十五地市（区）的517所普惠性幼儿园为研究样本,对陕西省普惠性幼儿园发展的情况进行研究。结果显示,全省普惠性幼儿园发展取得一定成绩,但也存在政府对普惠性幼儿园财政投入数量不足、方式单一,普惠性幼儿园教师数量不足、持证率低、年龄结构不合理、待遇差、离职率高,硬件设施设备配置不足,普惠性民办园对教研与培训的重视度不够等问题。为了更好地促进普惠性幼儿园的发展,政府应加大财政投入力度,建立合理的成本分担体系;提高工资水平和编制比例,保障幼儿教师基本权益;整合幼教资源,建立教育资源共享机制;创新教学管理模式,积极开展园本教研。     

青藏铁路沿线生态环保经济效益分析

青藏铁路作为全国乃至世界上首条高原生态环保铁路,通过其环保理念和环保实践及在全方位、多领域、各环节实施的环保措施,对青藏高原生态环境起到积极的保护作用,是人与自然生态、建设项目与高原环境和谐相处的典范,它将为我国今后经济建设项目的环境保护提供可以借鉴的成功经验,同时能发挥良好示范和典型引导作用,正如曾培炎副总理关于"青藏铁路建设中认真做好环境保护工作的经验,值得全面总结推广"的重要批示。可以预言,建成并投入使用的青藏铁路建设生态环保体系,必将在今后铁路运营中发挥良好的经济、生态和社会效益。     

A Multiple Imputation Approach to the Analysis of Current Status Data with the Additive Hazards Model

This article discusses regression analysis of current status data, which occur in many fields including cross-sectional studies, demographical investigations, and tumorigenicity experiments (Keiding, 1991 Keiding , N. ( 1991 ). Age-specific incidence and prevalence: a statistical perspective (with discussion) . J. Roy. Statist. Soc. Ser. A 154 : 371 – 412 .[Crossref] , [Google Scholar]; Sun 2006 Sun , J. ( 2006 ). The Statistical Analysis of Interval-Censored Failure Time Data . New York : Springer-Verlag . [Google Scholar]). For the problem, we focus on the situation where the survival time of interest can be described by the additive hazards model and a multiple imputation approach is presented for inference. A major advantage of the approach is its simplicity and it can be easily implemented by using the existing software packages for right-censored failure time data. Extensive simulation studies are conducted and indicate that the approach performs well for practical situations and is comparable to the existing methods. The methodology is applied to a set of current status data arising from a tumorigenicity experiment and the model checking is discussed.     

Empirical Analysis of Interval-Censored Failure Time Data with Linear Transformation Models

Interval-censored data naturally arise in many studies. For their regression analysis, many approaches have been proposed under various models and for most of them, the inference is carried out based on the asymptotic normality. In particular, Zhang et al. (2005) discussed the procedure under the linear transformation model. It is well-known that the symmetric property implied by the normal distribution may not be appropriate sometimes. Also the method could underestimate the variance of estimated parameters. This paper proposes an empirical likelihood-based procedure for the problem. Simulation and the analysis of a real data set are conducted to assess the performance of the procedure.     

学业质量增值评价数学模型的比较研究——以西部某区教育实证数据为例

增值评价是以学生成长为核心,以学校发展为目标的一种评价方式,可以更公平地评价学校效能。增值评价有多种数学模型,其中,与基于平均名次、基于标准分的两种模型相比,基于学生成长百分位和多层线性回归两种模型的优势在于能够避免优秀学生增值空间受限的问题。在多层线性回归模型中纳入学生性别、家庭社会经济地位指数等学校不可控的生源因素,可有效排除生源因素对学生的影响,更符合关注学校“净效能”的评价理念。     

A bivariate density estimation method based on level crossings

This article introduces a method of nonparametric bivariate density estimation based on a bivariate sample level crossing function, which leads to the construction of a bivariate level crossing empirical distribution function (BLCEDF). An efficiency function for this BLCEDF relative to the classical empirical distribution function (EDF), is derived. The BLCEDF gives more efficient estimates than the EDF in the tails of any underlying continuous distribution, for both small and large sample sizes. On the basis of BLCEDF we define a bivariate level crossing kernel density estimator (BLCKDE) and study its properties. We apply the BLCEDF and BLCKDE for various distributions and provide results of simulations that confirm the theoretical properties. A real-world example is given.     

论全国人大常委会审查决定的法律效力

备案审查工作面临的新形势客观上要求明确审查决定的法律效力.实务界以“双轨制”的方式在发展完善审查决定的法律效力,应当予以关注和理论化.科学地构建我国的审查决定效力制度,需要妥善处理审查方式与审查决定法律效力的关系、审查主体的资格与审查决定法律效力的关系、维护法的安定性与保护个人权利的关系.全国人大专门委员会、全国人大常委会法工委通过协商实现的审查,仅具有柔性的约束力;全国人大常委会通过强制实现的审查,才具有刚性的约束力.审查决定的法律效力应当以不具有溯及力为原则,具有溯及力为例外.     

劳务派遣法律规制与实践背离的法社会学探究

通过对劳务派遣法律规制与实践之间的关系考察发现:法律规制是一回事,劳动实践又是另外一回事.在劳动实践中通行并发挥作用的规则,并不完全等同于书本上的劳动法律.如何从理论上理解并解释该现象以及如何分析其成因并提出有建设性意义的对策是我们关注并解决的问题.从法律社会学的角度,运用"行动中的法"的理论分析了劳务派遣法律规制的修改、实施问题,揭示了劳务派遣法律规制表达与实践之间的背离现象并予以理论化和类型化,进而从立法和法律实施两个角度分析了产生这一现象的原因,即劳务派遣法律规制的不足,影响了法律规制的实施效果;弱化的行政执法,造成了法律规制效果的低下;"双轨制"用工制约了法律规制实施效果,三方之交易行为规避法律条款,架空了法律规制.