土地流转中为什么会形成大量小农复制

土地流转是实现规模化经营的前提之一,然而土地流转中却出现大量小农复制,从而影响土地流转的质量和效果。运用12省(自治区)2 553份农户问卷,详细分析土地流转中小农复制的现状及其形成原因。研究发现：(1)农户流转耕地面积不大,转入户流转面积20亩及以下的约占总转入户数的60.3％,转出户流转面积5亩及以下的约占总转出户数的74.38％,转出户中仍然经营土地的约占总转出户数的74％。(2)农业分工发达使生产更加方便、文化传统形成路径依赖、禀赋效应产生“价值幻觉”以及公共服务不健全使未来存在不确定性导致转出户流转部分土地。乡土社会限制土地流转范围和经营风险增加风险感知导致转入户流转小规模土地。     

民间传说与文献记载的关联：以巫山神女传说为例

现有文献中有关巫山神女的记载较多,三峡地区也有不少关于神女传说的版本,只是其与文献记载的神女故事情节相差甚远。民众在创作民间传说时,会根据具体的自然环境、社会伦理道德要求、自身的价值观、主流社会的需要以及文化传播等多种因素,完成传说情节的塑造。     

Penalized empirical likelihood inference for sparse additive hazards regression with a diverging number of covariates

High-dimensional sparse modeling with censored survival data is of great practical importance, as exemplified by applications in high-throughput genomic data analysis. In this paper, we propose a class of regularization methods, integrating both the penalized empirical likelihood and pseudoscore approaches, for variable selection and estimation in sparse and high-dimensional additive hazards regression models. When the number of covariates grows with the sample size, we establish asymptotic properties of the resulting estimator and the oracle property of the proposed method. It is shown that the proposed estimator is more efficient than that obtained from the non-concave penalized likelihood approach in the literature. Based on a penalized empirical likelihood ratio statistic, we further develop a nonparametric likelihood approach for testing the linear hypothesis of regression coefficients and constructing confidence regions consequently. Simulation studies are carried out to evaluate the performance of the proposed methodology and also two real data sets are analyzed.     

论大学生创新能力的培养

从培养对象、培养者以及政府行为等 3个方面 ,分析培养大学生创新能力的艰巨性。依据教育的本质提出 :培养大学生的创新能力 ,应以知识为载体、传授知识为手段、将其渗透融合在教学的全过程 ;以环境建设、机会与空间、教学环节作为培养大学生创新能力的三大要素 ,系统地论述如何做好此项工作。并结合工作实践 ,介绍了在教学过程中相机培养大学生创新能力的尝试     

多代合居模式下的卫浴空间通用设计

老年人、青年人、儿童多代合居的家庭,因生活方式的差异致使传统的卫浴空间设计显现出诸多问题。在空间规划、设施配置、氛围营造三个方面引入通用设计理念,合理设计卫浴空间使合居家庭的生活更加融洽。     

浅议英语学习中的文化差异

东西方文化存在着很大的差异,对西方文化不了解,势必造成英语学习的障碍乃至交际的失误。     

探索民族文化发展之路

本文在总结分析"十五"期间广西民族文化工作取得的成绩的基础上,提出广西民族文化发展的思路:强化民族文化是一个民族的灵魂和根基的共识;以民族节庆为平台,广泛推崇民族文化;加强和扶持民族文化载体建设,借助现代化手段,推动民族文化走向全国、走向世界;构建"点、线、区、网"相连的民族文化体系。     

Frailty modelling approaches for semi-competing risks data

Lifetime Data Analysis - In the semi-competing risks situation where only a terminal event censors a non-terminal event, observed event times can be correlated. Recently, frailty models with an...     

Bayesian inference for zero-and-one-inflated geometric distribution regression model using Pólya-Gamma latent variables

Abstract

In the fields of internet financial transactions and reliability engineering, there could be more zero and one observations simultaneously. In this paper, considering that it is beyond the range where the conventional model can fit, zero-and-one-inflated geometric distribution regression model is proposed. Ingeniously introducing Pólya-Gamma latent variables in the Bayesian inference, posterior sampling with high-dimensional parameters is converted to latent variables sampling and posterior sampling with lower-dimensional parameters, respectively. Circumventing the need for Metropolis-Hastings sampling, the sample with higher sampling efficiency is obtained. A simulation study is conducted to assess the performance of the proposed estimation for various sample sizes. Finally, a doctoral dissertation data set is analyzed to illustrate the practicability of the proposed method, research shows that zero-and-one-inflated geometric distribution regression model using Pólya-Gamma latent variables can achieve better fitting results.     

民事诉讼行政介入的程序规制研究

规制行政介入司法尤其是民事司法,除了深化司法体制改革的体制规制路径,将行政机关意见表达纳入民事诉讼程序是其另一程序规制路径.程序规制具有公正审判权请求权、论辩式民事诉讼对话逻辑、诉权制约行政权、民事审判实质公开的“武器支撑”.“法庭之友”制度对民事诉讼行政介入具有程序规制作用,中国行政机关可以“法庭之友”身份参与民事诉讼、进行意见表达.行政机关担当“法庭之友”不会损害独立审判,相反有利于司法公正公开.行政机关担当“法庭之友”以维护公共利益为限,是新型诉讼参与人,应明确其诉讼权利义务,构建行政机关作为“法庭之友”参诉的具体程序.