Model selection criteria in beta regression with varying dispersion

We address the issue of model selection in beta regressions with varying dispersion. The model consists of two submodels, namely: for the mean and for the dispersion. Our focus is on the selection of the covariates for each submodel. Our Monte Carlo evidence reveals that the joint selection of covariates for the two submodels is not accurate in finite samples. We introduce two new model selection criteria that explicitly account for varying dispersion and propose a fast two step model selection scheme which is considerably more accurate and is computationally less costly than usual joint model selection. Monte Carlo evidence is presented and discussed. We also present the results of an empirical application.     

The effect of different data structures,sample sizes on model fit measures

In this study, our aim was to investigate the changes of different data structures and different sample sizes on the structural equation modeling and the influence of these factors on the model fit measures. Examining the created structural equation modeling under different data structures and sample sizes, the evaluation of model fit measures were performed with a simulation study. As a result of the simulation study, optimization and negative variance estimation problems have been encountered depending on the sample size and changing correlations. It was observed that these problems disappeared either by increasing the sample size or the correlations between the variables in factor. For upcoming studies, the choice of RMSEA and IFI model fit measures can be suggested in all sample sizes and the correlation values for data sets are ensured the multivariate normal distribution assumption.     

The Conversational Model and Child and Family Counselling: Treating Chronic Complex Trauma in a Systemic Framework

Child and Family Counselling Teams in NSW Community Health Services are expected to provide therapeutic services to children who have experienced complex trauma. However, parental trauma is often overlooked or referred elsewhere. A systemic perspective informed by attachment theory and trauma theory provides the basis for addressing parental trauma in Child and Family Counselling Teams, thereby improving parenting. The Conversational Model is an evidence‐based intervention for chronic complex trauma. The foundations of the Conversational Model and its brief component, Short Term Intensive Psychodynamic Psychotherapy, are outlined and a case study is given to illustrate the usefulness of the intervention in Child and Family Counselling. Highlighted is the importance of addressing systemic trauma through parenting to improve attachment quality, family relationships, and children's function.     

Exploring how the social model of disability can be re-invigorated: in response to Mike Oliver

In his 2013 article in Disability & Society, Oliver recommended that the social model should either be replaced or re-invigorated. I argue here that the social model’s current emphasis reflects the social conditions in which it was introduced, and that the model’s impact on disabled people’s lives would increase if its emphasis was to more accurately reflect the current social conditions in the geographical regions in which it is applied. In order to help foster its re-invigoration, I ask five questions for discussion on the way forward for the social model. I identified my questions through examining published writing on the scope of the social model and on the model’s relationship with other models of disability.     

冰山模型视角下高校创新创业人才素质研究——基于福建省的实证分析

培养创新创业人才愈来愈成为高等教育热点。目前学界尚无关于高校创新创业人才素质的界定。借鉴冰山模型,通过调查、卡方检验及Lambda分析认为：高校创新创业人才除应具备人才的基础素质外,在表达能力、认识和把握规律、自我剖析、艺术与人文素养、想象力、洞察力、魄力、创新动力、创业激情和冒险精神等核心素质方面需更加突出。当前,社会评价高校毕业生总体上在核心素质方面较欠缺,其中尤以创新动力、创业激情和冒险精神为甚。这是我们加强高校创新创业人才培养的突破口之一,实践中应从改进人才培养模式结构、完善人才培养资源配置、强化人才核心素质提升等路径入手。     

国家建设模式的类型和中国的选择

国家建设是指由传统国家转变为现代民族国家的国家建制过程,也是在超越传统国家的前提下建立起和不断完善一整套具备现代国家基本特征的组织、价值和制度的历史过程。梳理历史上各国国家建设的历程,我们可以尝试性地概括出国家建设模式的类型:阶级建设国家模式、军队建设国家模式和政党建设国家模式。以此类型为依据,对20世纪以来中国国家建设模式的选择问题进行理性分析,政党建设国家模式的最终成功有其内在深刻而独特的政治逻辑。这一模式下形成的政党国家必须进行适应性的调整和转型,才能真正有效推动中国现代国家建设的不断深化。     

政策性住房建设项目融资的PPP模式探析

我国政策性住房建设面临着资金瓶颈,借鉴发达国家公共设施建设项目融资中普遍采用的PPP模式将有助于解决这一困境。本文从公共物品理论和住房的双重属性作为研究切入点,分析了政策性住房建设融资中引入PPP模式的可行性,并对政策性住房建设项目PPP模式的运作流程、实践中的困境及对策加以探讨,为解决政策性住房建设项目融资难题提供一种思路。     

“中国模式”的时代演绎及其“冷战”、“后冷战”国际背景

中国改革开放的新时期,先后处于世界＂冷战＂、＂后冷战＂时代。中国审时度势,锐意改革进取,既为世界冷战的终结作出了历史性的贡献,同时也发展壮大国力,摒弃了旧有的＂中国模式＂理论话语。中国式改革使自己摆脱了苏东剧变引发的＂多米诺骨牌效应＂,由此也兴起了有关＂中国模式＂的初步探讨。尽管在＂后冷战＂时代,西方国家＂冷战思维＂阴魂不散,＂中国模式＂论的兴起仍凸显世界融解的信息。其与中国威胁论的交错杂糅,又凸显了国际背景的复杂艰辛。有鉴于此,中国学者有关＂中国模式＂的探讨更应注重与海外的学术博弈。     

中国移动通信市场动态博弈过程模型研究

中国移动市场是中国移动和中国联通双寡头垄断竞争的市场，在现实中，他们的博弈过程是非常复杂的，未必能达到理论上的博弈均衡点，博弈结果是与其博弈过程相联系的。本文根据中国联通成立的初期、中期和后期分为三个阶段，利用两种竞争模型——基于价格博弈的伯川德竞争模型和基于差异化（产量即用户量）竞争的古诺竞争模型，对市场中中国移动和中国联通的动态重复博弈过程，建立模型进行研究。     

“融和型”社区青少年社会工作服务模式探究

社区青少年社会工作服务体现了多元优势融合、和谐发展的特征.本人在对上海社区青少年服务目标、服务原则、服务内容、服务方法和策略经验研究的基础上提出"融和型"社区青少年社会工作服务模式的概念."融和型"社区青少年社会工作服务模式的形成,反映了中国社会工作实践的本土性特点.