Model Checks in Inverse Regression Models with Convolution‐Type Operators

Abstract. We consider the problem of testing parametric assumptions in an inverse regression model with a convolution‐type operator. An L ₂ ‐type goodness‐of‐fit test is proposed which compares the distance between a parametric and a non‐parametric estimate of the regression function. Asymptotic normality of the corresponding test statistic is shown under the null hypothesis and under a general non‐parametric alternative with different rates of convergence in both cases. The feasibility of the proposed test is demonstrated by means of a small simulation study. In particular, the power of the test against certain types of alternative is investigated. Finally, an empirical example is provided, in which the proposed methods are applied to the determination of the shape of the luminosity profile of the elliptical galaxy NGC 5017.     

Demande et emploi dans les chaînes d'approvisionnement mondiales

L'essor des chaînes d'approvisionnement mondiales (CAM) éloigne l'emploi de la demande, géographiquement et sectoriellement. Pour mieux comprendre le phénomène, les auteurs mesurent l'emploi lié aux CAM selon sa localisation et celle de la demande, en se fondant sur les données de la base WIOD et en complétant les estimations déjà présentées par le BIT. L'analyse porte sur la période 1995–2013 et sur 40 économies. Elle montre que la Chine, principale bénéficiaire de la demande liée aux CAM autrefois, contribue maintenant à l'alimenter, tout comme les relations de production entre économies émergentes. En outre, le poids des services liés à une demande manufacturière augmente.     

Public relations critical intersections special section introduction

The theme of this special section arose from the idea that interdisciplinary interactions, or the cross-fertilization of methods, philosophies, theories, and modes of practice across disciplines, can open out productive ways of addressing complex issues and wicked problems. Our call for papers reached out to public relations scholars and to researchers in other fields to submit articles at these generative intersections at different time. They were invited to reflect on traditional concerns, or current issues, or projected trends in public relations and elsewhere. As editors making a call to open boundaries, we invited participation along a spectrum of possible intersections whether of content, methods, pedagogy or technology. Taking different positions on that spectrum, the articles in the section examine the nature, engagement and evaluation of intersections. In writing this introduction, the editors took an overview of the articles in the light of three fundamental questions: “How and where does interdisciplinarity occur in public relations?”; “Are there indications of how public relations intersects with other fields to engage existing and potential future challenges?”; and “What principles might serve to evaluate answers to questions one and two?” In addition, we explore how each of the selected intersections in the articles might add value to public relations as a discipline and a practice.     

翻译专业建设的几点思考

经过近年来的发展建设,我国翻译专业人才培养已经形成了包括本科、硕士、博士在内的完整的教学体系,特别是MTI的设立形成了翻译专业建设和研究的新热潮,取得的成绩喜人,同时暴露出来的问题也不容忽视,专业建设中的重要问题需要我们不断深入思考探讨摸索,使翻译专业建设健康发展。     

幼儿园表演区游戏开展中存在的问题及解决对策——以某幼儿园大班表演区游戏《小熊请客》为例

现如今大多数幼儿园将表演游戏融入区域活动中，作为表演区游戏开展活动之一，这一转变，在实践层面上有许多值得研究的问题。文章通过对某幼儿园大班表演区游戏的观察研究发现，表演区游戏在开展中存在场所设置不合理、材料投放单一高控、游戏参与积极性低等问题。为此提出相应的解决对策：游戏前准备适宜的场地、丰富的内容、多样的材料；游戏中细心观察，适时引导，指导过程中注意重游戏轻表演；游戏后共同分享交流，解决游戏中出现的问题，以此更好地发挥表演区游戏的实际效用。     

网红直播带货的伦理审视

随着网络直播的兴起和网红经济的发展,"网红直播带货"成为一种新的重要营销方式,它不仅能满足人们个性化的物质需求,而且能满足个体的社交化情感诉求,但其中所潜藏的诚信缺失和个体消费成瘾等伦理失范问题较为突出。加强个人义利观教育、完善社会诚信监督机制,丰盈个体精神生活、净化社会消费风气,则是解决这些伦理问题的可行性路径。     

3-6岁学前儿童情绪与行为问题的调查与分析——以惠州市为例

摘 要：应用儿童长处与困难（SDQ）问卷（父母版），采用分层随机抽样方法，对惠州市1528名3-6岁儿童的情绪与行为问题进行调查。研究发现：惠州市3-6岁儿童情绪与行为问题异常情况比较严峻，儿童心理健康状况值得重视；不同地域、年龄学前儿童存在不同的情绪与行为问题，需要分类干预。其中农村儿童的情绪与行为问题异常情况尤为严重，需要得到广泛的关注和解决。     

新时代应用型教师的培养：问题与策略——以地方本科院校为视角

以校地合作、校企合作为发展战略的地方本科院校向应用型院校转变，已经成为一种潮流和趋势，而应用型教师的建设与培养更是迫在眉睫。在明确新时代高校应用型教师培养的必要性的基础上，从数量层面、结构层面、能力层面以及培训层面指出了培养过程中存在的问题，同时针对这些问题提出较为有效的应对策略。     

Attention and Executive Functions as Mediators of Attachment and Behavior Problems

The purpose of this study was to provide a more comprehensive understanding of the relation between early parent‐child interactions and subsequent behavior problems and how certain cognitive processes mediate this relation. Specifically, this study investigated whether attention, inhibition, and planning skills mediate the relation between attachment security and behavior problems. Data were collected as part of the National Institute of Child Health and Development‐Study of Early Child Care and Youth Development when children (N = 1004) were between 36 months and the third grade. Results from structural equation models indicated that sustained attention mediated the relation between disorganized attachment and social problems. Planning mediated the relation between disorganized attachment and subsequent thought problems, attention problems, and delinquent behavior. Avoidant, ambivalent, and disorganized attachment directly predicted several behavior problems. Implications for theory and future research are discussed.     

A new metamodel-based method for solving semi-expensive simulation optimization problems

In this article, a new algorithm for rather expensive simulation problems is presented, which consists of two phases. In the first phase, as a model-based algorithm, the simulation output is used directly in the optimization stage. In the second phase, the simulation model is replaced by a valid metamodel. In addition, a new optimization algorithm is presented. To evaluate the performance of the proposed algorithm, it is applied to the (s,S) inventory problem as well as to five test functions. Numerical results show that the proposed algorithm leads to better solutions with less computational time than the corresponding metamodel-based algorithm.