Adolescent Sibling Relationship Quality and Adjustment: Sibling Trustworthiness and Modeling,as Factors Directly and Indirectly Influencing These Associations

The main goal of this study was to examine the direct and moderating effects of trustworthiness and modeling on adolescent siblings' adjustment. Data were collected from 438 families including a mother, a younger sibling in fifth, sixth, or seventh grade (M = 11.6 years), and an older sibling (M = 14.3 years). Respondents completed Web‐based surveys describing sibling conflict and warmth. Siblings reported on trustworthiness and modeling, and mothers described adjustment. Sibling conflict was directly associated with internalizing and externalizing behaviors for both siblings. The older siblings' reports of trustworthiness were directly associated with the outcome measures. The younger siblings' reports of trustworthiness were less directly associated, but a possible salutary effect was most evident under the highest levels of sibling conflict or warmth. Higher sibling modeling was a risk factor for adjustment problems in relations characterized by high conflict. Results support exploring trustworthiness as a key dimension of sibling relations.     

中国式价格上涨不是通货膨胀

此次国际金融危机的出现使得国际经济形势越来越复杂,在这种形势下,已经具有较高开放度的中国经济需要审时度势,格外谨慎从事,不能大意,尤其是不能放松对于恶性通货膨胀的警惕和防备.目前,中国经济已经进入了高增长阶段.这一阶段的存在是以中国的工业化腾飞为根据的.在经济高增长阶段,中国的消费品和生产资料的价格已经不可抑制地随之普遍上涨.但这种价格上涨的性质是价格调整,是市场机制作用下的比价关系的调整,不是恶性的通货膨胀的表现.     

社区管理与服务专业主干课程建设研究

社区管理与服务在我国城乡和谐社会建设中具有重要的地位,但由于属于新兴专业,其课程设置目前仍有待完善之处。这些问题包括总体社区工作课程过多且存在一定重复,忽略社区服务的具体环节和技巧教育,以及各课程之间相互区隔缺乏沟通联动等。笔者以为社区管理与服务专业的主干课程,当以社区工作服务群众时所需的技能体系为基础进行设计。具体包括强化社区服务各环节技能的训练,并打破现有课程之间的藩篱,在不同的课程之间,尤其是社区工作专业技巧课程之间建立起前后的承接关系。     

顺治帝对贪官的整饬

清军入主中原后,大量吸纳明朝的文武官员,为清朝迅速建立起对全国的统治发挥了重要作用,然而同时也把明末官场中的贪污成风的陋习继承了下来。顺治帝亲政后,开始制定相关政策对官吏贪污进行打击限制,并取得了很好的效果。     

文化视野下的汉语民族性特点

汉语的民族性特点是在与其他民族语长期接触和融合过程中形成的.文章立足于中西文化和中华文化广阔视域,从语词类聚、句法组织、修辞方式、表达习惯等角度对汉语的民族性特点进行了全面描写,同时结合民族历史、政治制度、社会背景、价值观念、认知心理等诸因素,给予了发生学解释.     

统计功效与分析软件

一、背景的说明统计功效（ＳｔａｔｉｓｔｉｃａｌＰｏｗｅｒ）是统计学中的一个重要概念,也是一个十分有用的测度指标。国外的许多教科书中对统计功效有过比较详细的讨论,国内出版的教科书中对此也有涉及（参见：袁卫等编著《新编统计学教程》,经济科学出版社,１９９９年２月）。简单地说,统计功效是指,在假设检验中,拒绝原假设后,接受正确的替换假设的概率。我们知道,在假设检验中有α错误和β错误。α错误是弃真错误,β错误是取伪错误。取伪错误是指,拒绝原假设后,接受错误的替换假设的概率。由此可知,统计功效等于１－β。…     

关于扩大内需与适度消费的思考

文章从扩大内需、保持适度消费角度对在新旧体制转换时期,如何使国民经济保持持续稳定快速增长进行了探讨,指出这应该是政府和商家的共同行为,政府的政策性指导,将有助于建立公众正确消费观念.     

我国政府统计中多层次推断问题讨论

当前,多层次推断问题已成为我国在政府统计中推广抽样调查所面临的最大难题。本文回顾了现有解决多层次推断问题的方法,指出这些方法在使用上的限制;提出从改进估计的角度解决多层次推断问题,讨论了借助辅助信息改进估计的方法和建立统计模型进行推估的方法,并指出各种方法的优劣和适用情况;简要探讨了大数据背景下对解决多层次推断问题的一些启示。     

Reducing bias of the maximum-likelihood estimation for the truncated Pareto distribution

The Pareto distribution is an important distribution in statistics, which has been widely used in finance, physics, hydrology, geology, astronomy, and so on. Even though the parameter estimation for the Pareto distribution has been well established in the literature, the estimation problem for the truncated Pareto distribution becomes complex. This article investigates the bias and mean-squared error of the maximum-likelihood estimation for the truncated Pareto distribution, and some useful results are obtained.     

Storage Life Prediction for a High-Performance Capacitor Using Multi-Phase Wiener Degradation Model

Capacitance is a critical performance characteristic of high-voltage-pulse capacitor which is used to store and discharge electrical energy rapidly. The capacitors usually are stored for a long period of time before put into use. Experimental result and engineering experience indicate that the capacitance increases with storage time and will eventually exceed the failure threshold, which means that the capacitor may fail during storage. This is a typical mode of degradation failure for long storage products. Further, the capacitance degradation path can be extrapolated in several stages based on the shifting characteristics. That is, the capacitance increases slowly or fluctuates in the initial storage stage that lasts about three months. Then it increases sharply in the middle stage which lasts about four months. After the two stages, the capacitor enters into the third stage in which capacitance increases constantly. This degradation phenomenon motivates us to study the storage life prediction method based on multi-phase degradation path model. The storage performance degradation mechanism of high-voltage-pulse capacitor was investigated, which provides the physical basis for multi-phase Wiener degradation model. Identification procedure for the transition points in the degradation path was proposed using maximum likelihood principle (MLP). The result of Kruskal-Wallis test which is the method to test whether two populations are consistent or not in statistics showed that the transition points are statistically effective. Other parameters in the multi-phase degradation model are estimated with maximum likelihood estimation (MLE) after the transition points have been specified. The multi-phase Inverse Gaussian (IG) distribution for storage life was deduced for the capacitor, and the point and interval estimation procedure for reliable storage life are constructed with bootstrap method. The efficiency and effectiveness of the proposed multi-phase degradation model is compared with storage life prediction under single-phase condition.