外部视觉情绪设计对多媒体学习的影响

以高中生为被试对象，以大陆漂移论为素材，研究外部视觉情绪设计对多媒体学习的影响。结果表明，接受情绪设计组(实验组)的积极情绪显著高于中性组(对照组)；实验组与对照组内在认知负荷、相关认知负荷均无显著差异，外在认知负荷小于对照组；实验组保持测验成绩显著高于对照组，迁移测验成绩无差异。同时，外部视觉情绪设计能显著提高多媒体学习效果。外部视觉情绪设计的实验设计突破了已有研究300s学习素材的诱发时间，拓展了多媒体学习情绪设计的内涵。     

中国扶贫70年:基于实现共富的三重向度研究

消除贫困、实现共同富裕是社会主义的本质要求，也是中国共产党人的“初心”和“使命”。新中国成立70年来，党和政府为实现全体人民共同富裕的奋斗目标，带领全国人民持续向贫困宣战，成功探索出了一条具有中国特色的扶贫道路，取得了举世公认的扶贫成就。基于实现共富的三重向度来回顾中国扶贫70年的发展历程：在历史向度上，中国扶贫道路经历了救济式扶贫、体制改革式扶贫、开发式扶贫、参与式扶贫和精准扶贫等5个发展阶段；在实践向度上，中国扶贫始终坚持实事求是思想路线，发挥党的领导和政府主导相结合的政治优势，积蓄扶贫物质的经济力量，形成了独具中国特色的“中国经验”；在价值向度上，中国扶贫70年所形成的“中国经验”为世界减贫理论、减贫事业的发展贡献出了“中国智慧”和“中国方案”，具有极其重要的世界意义。     

Developing and testing a mobile application for breastfeeding support: The Milky Way application

BackgroundSupporting women to continue breastfeeding is a global challenge. The Milky Way Program is an effective face to face intervention to increase breastfeeding rates up to six months postpartum. The sustainability and access to the Milky Way Program could be enhanced by transforming it into a mobile application allowing women to access relevant information from their own place at a convenient time.AimTo explore the process of transforming the Milky Way Program into an acceptable and usable mobile health application.MethodStakeholders including multidisciplinary researchers and end-users designed the application based on the Milky Way Program by using Persuasive System Design principles. A mixed-method approach was used in the development and evaluation process. Seven women were recruited through convenience sampling to pilot test the application. The women’s feedback was collected through an online survey six weeks after birth and individual interviews at four months postpartum.FindingsWomen in the pilot study reported that the breastfeeding application was well designed, easy to use, interactive, reassuring and evidence-based with credible sources of information.ConclusionThe Persuasive System Design model combined with end-user engagement can feasibly inform the development of an acceptable and usable mobile health application for breastfeeding based on a proven clinical intervention. Further rigorous testing is required to evaluate the effectiveness of the application on breastfeeding initiation and duration.     

Variables related to maternal satisfaction with intrapartum care in Northern Italy

BackgroundThe experience of labour and birth is complex, multidimensional and subjective and has the potential to affect the women and their families physically and emotionally. However, there is a lack of research around maternal satisfaction in Italy.AimTo evaluate mothers’ satisfaction with their childbirth experience in relation to socio-demographic characteristics, obstetric history and intrapartum care variables.MethodsA cross-sectional study involving 277 women who had given birth in a low risk maternity unit in Northern Italy was undertaken. Satisfaction with birth was measured using the Italian version of the Birth Satisfaction Scale-Revised (I-BSS-R). The scale comprises three Sub-Scales: quality of care provided, personal attributes of women and stress experienced during childbirth.FindingsNo socio-demographic variables were related to maternal satisfaction. Multiparous women had a higher satisfaction score (p = 0.020; CI:0.23;2.75). Antenatal class attendance was negatively associated with maternal satisfaction (p = 0.038; CI:−2.58; −0.07). Intrapartum variables that significantly reduced maternal satisfaction were: epidural usage (p = 0.000; CI:−4.66; −2.07), active phase >12 h (p = 0.000; CI:−6.01; −2.63), oxytocin administration (p = 0.000; CI:−5.08; −2.29) and vacuum assisted birth (p = 0.001; CI:−6.50; −1.58). Women with an intact perineum were more likely to be satisfied (p = 0.008; CI:−4.60; −0.69).DiscussionIn accordance with other research, we showed that intrapartum interventions are negatively associated with maternal outcomes and therefore also with maternal satisfaction with birth. The sub-scale that measured Quality of Care provided scored higher than the other two Sub-Scales.ConclusionFurther studies on maternal satisfaction in Italy should be conducted, using the I-BSS-R with the aim to compare outcomes and understand what matters to women during childbirth.     

Tests for homogeneity of risk differences in stratified design with correlated bilateral data

ABSTRACT

Correlated bilateral data arise from stratified studies involving paired body organs in a subject. When it is desirable to conduct inference on the scale of risk difference, one needs first to assess the assumption of homogeneity in risk differences across strata. For testing homogeneity of risk differences, we herein propose eight methods derived respectively from weighted-least-squares (WLS), the Mantel-Haenszel (MH) estimator, the WLS method in combination with inverse hyperbolic tangent transformation, and the test statistics based on their log-transformation, the modified Score test statistic and Likelihood ratio test statistic. Simulation results showed that four of the tests perform well in general, with the tests based on the WLS method and inverse hyperbolic tangent transformation always performing satisfactorily even under small sample size designs. The methods are illustrated with a dataset.     

Design selection for strong orthogonal arrays

Strong orthogonal arrays (SOAs) were recently introduced and studied as a class of space‐filling designs for computer experiments. An important problem that has not been addressed in the literature is that of design selection for such arrays. In this article, we conduct a systematic investigation into this problem, and we focus on the most useful SOA(n,m,4,2 + )s and SOA(n,m,4,2)s. This article first addresses the problem of design selection for SOAs of strength 2+ by examining their three‐dimensional projections. Both theoretical and computational results are presented. When SOAs of strength 2+ do not exist, we formulate a general framework for the selection of SOAs of strength 2 by looking at their two‐dimensional projections. The approach is fruitful, as it is applicable when SOAs of strength 2+ do not exist and it gives rise to them when they do. The Canadian Journal of Statistics 47: 302–314; 2019 © 2019 Statistical Society of Canada     

A Boy’s Journey: Public Sociology for in and Out of the Classroom

This essay is a response to Stein (2019; 2020) and his use of lived experience to tell the story of violence and the Holocaust. I discuss these works’ contributions to public sociology and teaching.     

美国中小学的体验式学习及启示

体验式学习的内涵随着时代的发展而逐渐丰富和深化，但无论其如何演变，直接经验和反思始终是体验式学习这一概念的内核。体验式学习理念渗透于美国教育文化之中。具体表现在：小学阶段的教育以学生的真实感知为基础，注重为学生提供真实体验的机会和激发学生的学习兴趣；中学尤其是高中阶段的教育以学生的真实体验为基础，注重为学生提供在新情境中检验所学知识的机会，注重学生知识、技能的内化吸收。美国中小学体验式学习的实施经验可为我国基础教育课程改革提供如下启示：（1）进一步树立和推广体验式学习理念；（2）创设学生进行真实体验的教学环境；（3）注重实施基于学生体验式学习的表现性评价。     

南京牛首山佛顶宫的公共艺术与场所精神

文章运用实地考察法、文献搜集法,从公共艺术特性入手,通过南京牛首山佛顶宫的文脉、空间及其内外的装置以及人们在这样的宗教建筑环境中进行有关活动的分析研究,寻找公共艺术作品与场所的契合点。通过对契合点的阐释,希望对中国建筑艺术作品的公共艺术与场所精神研究提供一点参考,以期日后创作出更加成功的公共艺术与场所精神相结合的案例。     

Regression analysis of case-cohort studies in the presence of dependent interval censoring

The case-cohort design is widely used as a means of reducing the cost in large cohort studies, especially when the disease rate is low and covariate measurements may be expensive, and has been discussed by many authors. In this paper, we discuss regression analysis of case-cohort studies that produce interval-censored failure time with dependent censoring, a situation for which there does not seem to exist an established approach. For inference, a sieve inverse probability weighting estimation procedure is developed with the use of Bernstein polynomials to approximate the unknown baseline cumulative hazard functions. The proposed estimators are shown to be consistent and the asymptotic normality of the resulting regression parameter estimators is established. A simulation study is conducted to assess the finite sample properties of the proposed approach and indicates that it works well in practical situations. The proposed method is applied to an HIV/AIDS case-cohort study that motivated this investigation.