Key success factors when implementing a green-manufacturing system

This study proposes a three-layer assessment model to evaluate the performance of a green-manufacturing system (GMS) and identify the key success factors of its real-world implementation. The top layer of the model includes three dimensions – green design, green-manufacturing process and green packaging. The second and third layers include ten strategic subjects and 74 assessment factors, respectively. The weights in each layer are collected via a questionnaire and calculated using the analytical network process (ANP). Based on the ANP, the five key success factors for implementing the GMS in a company are proportion of non-toxic materials, compliance with eco-ordinances, proportion of biodegradable materials, environmental pollution per product and extent of process pollution. The practicality of the proposed model is demonstrated by evaluating three companies that produce similar products and share similar business models. The proposed model provides a valuable reference for real-world implementation of the GMS.     

大学生对高等教育领域象征性秩序的认知研究

对大学生的调查发现,部分大学生的自我认识、入学选择、就读状态以及就业观念均与现行高等教育制度内容明显背离,形成了对现行高等教育制度的严重冲击和影响,而这一切皆源于高等教育领域中存在的象征性秩序。象征性秩序已经制约和影响了当今高等教育领域的多个运作环节。对此,有关部门应树立全局观念,在加强指导和宣传工作的同时,督促高等教育机构形成正确认识,帮助大学生抵制象征性秩序的影响,实现高等教育事业的健康发展。     

The role of interagency collaboration in facilitating receipt of behavioral health services for youth involved with child welfare and juvenile justice

Unmet need for behavioral health care is a serious problem for crossover youth, or those simultaneously involved with the child welfare and juvenile justice systems. Although a large percentage of crossover youth are serious emotionally disturbed, relatively few receive necessary behavioral health services. Few studies have examined the role of interagency collaboration in facilitating behavioral health service access for crossover youth. This study examined associations for three dimensions of collaboration between local child welfare and juvenile justice agencies - jurisdiction, shared information systems, and overall connectivity - and youths' odds of receiving behavioral health services. Data were drawn from the National Survey of Child and Adolescent Well-Being, a national survey of families engaged with the child welfare system. Having a single agency accountable for youth care increased youth odds of receiving outpatient and inpatient behavioral health services. Inter-agency sharing of administrative data increased youth odds of inpatient behavioral health service receipt. Clarifying agency accountability and linking databases across sectors may improve service access for youth involved with both the child welfare and juvenile justice systems.     

控股股东掏空动机与多元化的盈余波动效应

多元化经营是公司关注的重大发展问题,因此,多元化经营的动机及其经济后果也成为学者们研究的重点话题。本文从我国上市公司的多元化经营与盈余波动性之间的关系入手对这一问题进行研究,具体分析了公司多元化经营的程度对盈余波动性的影响及控股股东的掏空动机对多元化盈余波动效应的作用。研究发现,我国上市公司的多元化经营显著降低了公司的盈余波动性,多元化程度越高,盈余的波动性越低;但由控股股东代理问题而形成的掏空动机损害了多元化的盈余波动效应。本文的研究为多元化的经济后果增添了新的文献,同时也为上市公司监管提供了参考依据。     

克里普克指称理论的语用学论证

克里普克在反驳指称描述论和正面论证指称因果论的过程中,实际上曾使用一个借用语用学事实的论证,即本文所说的"语用学论证".如果确有这样的论证,则需要讨论的问题是,这个论证无论在肯定或否定的方面是否是有效的.通过分析,这里的结论是,语用学论证在事实陈述上也许是客观的,但在论证的整体上,则要么是循环的,要么是无关的.因此,语用学论证用于支持直接指称论的某些特定版本,比如指称的因果论,很可能是无效的.     

A joint modelling approach for clustered recurrent events and death events

In dental implant research studies, events such as implant complications including pain or infection may be observed recurrently before failure events, i.e. the death of implants. It is natural to assume that recurrent events and failure events are correlated to each other, since they happen on the same implant (subject) and complication times have strong effects on the implant survival time. On the other hand, each patient may have more than one implant. Therefore these recurrent events or failure events are clustered since implant complication times or failure times within the same patient (cluster) are likely to be correlated. The overall implant survival times and recurrent complication times are both interesting to us. In this paper, a joint modelling approach is proposed for modelling complication events and dental implant survival times simultaneously. The proposed method uses a frailty process to model the correlation within cluster and the correlation within subjects. We use Bayesian methods to obtain estimates of the parameters. Performance of the joint models are shown via simulation studies and data analysis.     

Reporting cumulative proportion of subjects with an adverse event based on data from multiple studies

Experience has shown us that when data are pooled from multiple studies to create an integrated summary, an analysis based on naïvely‐pooled data is vulnerable to the mischief of Simpson's Paradox. Using the proportions of patients with a target adverse event (AE) as an example, we demonstrate the Paradox's effect on both the comparison and the estimation of the proportions. While meta analytic approaches have been recommended and increasingly used for comparing safety data between treatments, reporting proportions of subjects experiencing a target AE based on data from multiple studies has received little attention. In this paper, we suggest two possible approaches to report these cumulative proportions. In addition, we urge that regulatory guidelines on reporting such proportions be established so that risks can be communicated in a scientifically defensible and balanced manner. Copyright © 2010 John Wiley & Sons, Ltd.     

公共物品与政府职能的区域差异

公共物品的“公共性”表现为消费的“非竞争性”和“非排他性” ,这种公共性有一定的范围 ,并且与个体的收入水平正相关。收入水平不同的地区对公共物品的需求具有差异性 ,但我国目前各级政府的公共物品供给与各地区的需求并不相符 ,不发达地区的公共物品供给严重不足     

公共物品供给效率与地方政府经济职能

公共物品只是某一特定集体的公共物品 ,具有一定的区域性。集体的规模对公共物品的供给效率有着重要影响 ,相对于中央政府而言 ,规模较小的地方政府在公共物品供给中也具有更高的效率。同时 ,地区间差异和地方政府本身的利益取向等也决定了强化地方政府的经济职能 ,增加地方政府的公共物品供给是提高公共物品供给效率的一个可行途径。     

ASMEC-S:一个基于主体的股份制经济模型

为了分析宏观经济与股票市场之间的相互影响，我们提供了一个基于主体的股份制经济模型──ＡＳＭＥＣ－Ｓ。人工经济由多个家庭、多个消费品企业、一个资本品企业、一个银行和一个政府组成。消费品企业是股份制企业，政府和众多家庭是它们的股东。家庭的消费剩余可以用于股票市场的投资，是否买卖某种股票取决于家庭的预期。消费品企业通过调整劳动力数目和资本数目控制生产规模，并应用分类器系统完善定价策略。政府可以通过制定货币政策调控经济运行。实验结果表明：宏观经济和股票市场均呈现出周期波动；政府适当地调整利率能够使宏观经济和股票市场运行比较平稳。