Substance use disorders and referral to treatment in substantiated cases of child maltreatment

Parents with substance use disorders (SUD) require treatment and support in order to provide children with appropriate care and protection. Using the 2012 National Child Abuse and Neglect Data System (NCANDS), this paper analysed 464 313 substantiated child maltreatment reports to determine (i) the proportion and characteristics of reports involving substance abuse; and (ii) the child and caregiver/perpetrator (C/P) characteristics that predicted referral to treatment as recorded in service plans. Findings indicate that 12% (N = 53 234) of maltreatment reports involved C/P SUD. Yet, of those reports, only (19%) (N = 10 088) were referred to substance abuse treatment as part of their service plan, indicating a large gap between those who need treatment and those who receive it. This finding is important given that parental SUD is consistently linked to poorer child outcomes. Amongst other variables, reports indicate that C/P with co‐occurring emotional disturbance were three times more likely to be referred to treatment for SUD as part of service plans. Additional research is needed regarding the characteristics that distinguish C/P who receive referrals for SUD treatment in substantiated cases of child maltreatment.     

Generalized simultaneous confidence regions for regression coefficients and their ratios

This study constructs a simultaneous confidence region for two combinations of coefficients of linear models and their ratios based on the concept of generalized pivotal quantities. Many biological studies, such as those on genetics, assessment of drug effectiveness, and health economics, are interested in a comparison of several dose groups with a placebo group and the group ratios. The Bonferroni correction and the plug-in method based on the multivariate-t distribution have been proposed for the simultaneous region estimation. However, the two methods are asymptotic procedures, and their performance in finite sample sizes has not been thoroughly investigated. Based on the concept of generalized pivotal quantity, we propose a Bonferroni correction procedure and a generalized variable (GV) procedure to construct the simultaneous confidence regions. To address a genetic concern of the dominance ratio, we conduct a simulation study to empirically investigate the probability coverage and expected length of the methods for various combinations of sample sizes and values of the dominance ratio. The simulation results demonstrate that the simultaneous confidence region based on the GV procedure provides sufficient coverage probability and reasonable expected length. Thus, it can be recommended in practice. Numerical examples using published data sets illustrate the proposed methods.     

我国残疾人服务体系的完善对策

中国残疾人服务体系亟待完善。推进残疾人服务体系建设必须注重发展的均等化与体系的一体化,设施的标准化与内容的规范化,队伍的专业化与评估的科学化,资源的多元化与管理的合理化。     

Whither practice-near research in the modernization programme? Policy blunders in children's services

In this article, we lament the effects of practice-distant research and associated policy initiatives on contemporary children's services in England. In the last decade, as a result of high profile inquiries into non-accidental child deaths, statutory children's social care services in the UK have been subject to a wide-reaching ‘modernization’ programme. We studied decision-making in the high blame environment of local authority children's services. Our research sought to examine the relationship between performance management and the impact of anticipated blame within the decision-making practices of those providing, supervising and managing these services. We show that systems and technologies can be developed which both assist the users in their daily work and achieve desired organizational goals, but without an ethnographically informed, practice-near approach, unsafe work regimes and practices can ensue.     

Construction of closed interval for process capability indices Cpu,Cpl, and Spk based on Boole’s inequality and de Morgan’s laws

ABSTRACT

Considerable effort has been spent on the development of confidence intervals for process capability indices (PCIs) based on the sampling distribution of the PCI or the transferred PCI. However, there is still no definitive way to construct a closed interval for a PCI. The aim of this study is to develop closed intervals for the PCIs C_pu, C_pl, and S_pk based on Boole's inequality and de Morgan's laws. The relationships between different sample sizes, the significance levels, and the confidence intervals of the PCIs C_pu, C_pl, and S_pk are investigated. Then, a testing model for interval estimation for the PCIs C_pu, C_pl, and S_pk is built as a powerful tool for measuring the quality performance of a product. Finally, an applied example is given to demonstrate the effectiveness and applicability of the proposed method and the testing model.     

残疾儿童社会保障制度的研究

目前，政府通过发展社会保障以增进社会和谐的政策方向基本确立，倡导残疾儿童社会保障制度的适度公正机制是基于经济发展和现代社会平等两者之间的权衡。目的是使社会成员都能够普遍以适度标准不断享受经济社会发展的成果，从而有效地实现社会整合。我国已经初步具备实现残疾儿童社会保障制度的适度公正目标的条件，基于此目标，残疾儿童的社会保障制度仍存在以下制约瓶颈：相关社会保障制度建设法规滞后；政府保障主体地位缺失，财政经费投入不足；残疾儿童参与社会保障层次低、覆盖面窄；保障政策执行部门行政多头管理。因此，残疾儿童社会保障制度的制度设计需要着重于：保持经济发展水平下残疾儿童保障支付享受标准；倡导公正和能动的残疾儿童权利保障价值取向：界定政府责任边界和立法，广泛动员社会力量；整合政府部门残疾儿童社会保障资源。     

Quality and Reliability in Top-event Estimation: Quantitative Fault Tree Analysis in Case of Dependent Events

This article deals with the quantitative Fault Tree Analysis (FTA) and the estimation method of the top-event in case of dependent events. It aims at addressing two main issues: (1) the decomposition of variability for the top-event according to several error components linked to the estimation of the top-event and sources of internal and external variations for a complex system; and (2) the definition of a Performance Measure Independent of Adjustment in order to set the quality of the top-event as a complex measure of the system failure. A simulated study applied to the health system is also carried out.     

论中国历史上的三次制度设计

自三代始，迄于近代，上下四千年。其间，制度设计之事，史不绝书。然而，择其具有原创意义、影响中国历史进程的制度设计，主要有三次，分别出现在周代、秦朝和近代。在中国文化语境中，古代制度设计权属于王和圣，虽为价值有涉，但也使“天下为家”体现出“天下为公”的理想。前两次制度设计以家天下政治为核心，先后形成了王制和帝制的模式；近代以孙中山为首的民族资产阶级的制度设计，效仿法、美模式，开启中国民主制度的先河，奠定了中国政治的基本方向。从历史背景、设计者及思想来源、系统性、创新性、本质性和对外影响来比较，三次制度设计既有相同性也存在着本质差别。三次制度设计对中国历史的进程有重要影响，可以作为中国历史上时代划分的标志。三次制度设计皆发生在中国历史转折时期，其影响之深远，意义之重大，留下了宝贵的历史经验、启示和借鉴。     

Monitoring the coefficient of variation using a variable sample size and sampling interval control chart

This article proposes a CV chart by using the variable sample size and sampling interval (VSSI) feature to improve the performance of the basic CV chart, for detecting small and moderate shifts in the CV. The proposed VSSI CV chart is designed by allowing the sample size and the sampling interval to vary. The VSSI CV chart's statistical performance is measured by using the average time to signal (ATS) and expected average time to signal (EATS) criteria and is compared with that of existing CV charts. The Markov chain approach is employed in the design of the chart.     

一种简单有效的二项分布比例参数似然比置信区间的求法

对二项分布比例参数p的似然比置信区间,提出一种简便求解方法。在平均覆盖率、平均区间长度及区间长度的95%置信区间准则下与WScore、Plus4、Jeffreys置信区间进行模拟比较。试验表明,在二项分布b(n,p)的参数n≥20且p∈(0.1,0.9)时,该方法获取的似然比置信区间性能优良。当点估计p值不是接近于0或1且n≥20时,推荐使用本方法获取p的置信区间。