Search tactics used in solving everyday how-to technical tasks: Repertoire,selection and tenacity

With greater access to computational resources, people use search to address many everyday challenges in their lives, including solving technology problems. Although there are now many useful ‘how-to’ resources online (especially videos on YouTube), it can still be difficult to identify, understand, and resolve certain kinds of technical problem. While research tasks have been studied for many years and we know the tactics people use, we know far less about searchers’ tactics for how-to technical tasks that involve actually being able to apply found information to resolve a problem. Crucial to our study was developing and studying a highly realistic, how-to technical task, for which there was no single guidance resource: making a phone safe for a child. After providing 39 participants with an actual phone to fix, and a search engine to perform the task, we analysed their search tactics using retrospective cued think aloud interviews. Our primary contribution is a set of 77 tactics used, in three categories, along with detail of how common they were. We conclude that people had a lot of tactics in their repertoire. Although it was not hard for participants to find relevant information, what was hard was for participants to find information they could use; indeed only 23% of participants successfully completed the entire task. Domain knowledge affected the choice of tactics used (although not necessarily towards better task success). We discuss these influences and make design recommendations for how future search systems can support those in resolving how-to technical tasks.     

美国公共图书馆少儿创客空间服务调研与分析

[目的/意义]探究美国公共图书馆少儿创客空间服务的实践案例及服务特色，以期为我国图书馆开展少儿创客空间服务提供参考。[方法/过程]参考2017年美国第10次"星级图书馆排行"评比结果，随机选取五星级图书馆中的30所公共图书馆为调查对象，其中有22所公共图书馆提供少儿创客空间服务，有4种少儿创客空间服务类型，通过典型案例的分析，归纳总结美国公共图书馆少儿创客空间服务的特色。[结果/结论]得出如下启示：重视培养少儿创客并构建少儿创客空间服务模式；促进少儿STEAM教育和创造活动，加大宣传力度以吸引女生关注科技；培养少儿自主学习能力和创造力；丰富少儿创客空间服务项目活动及先进的技术设备；重视协同与互助并加强人才队伍建设等。     

Parenting and discipline in post-conflict Sierra Leone

BackgroundWhile the literature on physical punishment concludes that it has negative effects on children, the practice remains common in many countries. In post-conflict countries with nongovernmental organizations (NGO) operating in child protection, traditional disciplinary practices may conflict with international child rights agendas. The country of Sierra Leone has a unique history of conflict, abject poverty, low literacy, and weak governance – often, NGO agents are responsible for providing social services that the government is unable to consistently provide.ObjectiveWe examined how Sierra Leonean caregivers think about appropriate discipline for children, and whether they perceived any changes in their attitudes toward disciplinary practices since the end of the war.Participants and SettingWe collected data from parents and caregivers in urban, peri-urban, and rural areas of Sierra Leone’s four districts.MethodsWe used focus groups (12 groups, n = 92) and individual interviews (n = 21) to collect data in 2013. Focus groups and interviews were conducted by research assistants fluent in Krio and English. We used a thematic content analysis approach.ResultsWe found that physical discipline—“beating”—was widely acceptable and common. A few parents mentioned other means of discipline, such as withholding food. Parents widely agreed that parenting had changed since the war, and reported that child rights movements supported by NGOs had made it more difficult to discipline their children in traditional ways.ConclusionsDiscipline was seen a central component of child-rearing and a means of ensuring safe and proper development. This may be a protective mechanism in the precarious, high poverty environment of post-war Sierra Leone. The negative responses of parents to NGO efforts to reduce physical punishment and other forms of child abuse suggest that grassroots approaches are needed to address this pervasive problem.     

Association between psychosocial stressors with emotional and behavioral problems among children of low-income addicted families living in Brazil

BackgroundChildren exposed to substance use in their families are vulnerable to multiple risk factors in their development and at increased risk for emotional and behavioral problems. The aims of the study were as follows 1) estimate the prevalence of emotional and behavioral problems among children aged 6–11 years old, living with addicted family members in a low-income urban community of São Paulo, Southeastern Brazil; 2) evaluate the children’s exposure to family psychosocial stressors and substance use; and 3) investigate the factors related to the increased risk of emotional and behavioral problems and substance use.MethodsA cross-sectional study was conducted among 101 children aged 6–11 years old (M = 9.16 years, SD = 1.61). The instruments used were a sociodemographic questionnaire, the Child Behavior Checklist (CBCL) and the Psychosocial Stress Factors (PSF).ResultsHigh prevalence of problems was found for this sample: the CBCL showed 26.7% of clinical scores for Internalizing Problems, 40.6% for Externalizing Problems, and 40.6% for Total Problems. Exposure to family psychosocial stressors was also high, including severe disease (33%), physical aggression (28.9%), death (27.8%), psychiatric hospitalization (16.7%), suicide attempts (15.5%), and suicide (9.3%). Exposure to these family stressors was associated with an increase of two to four times in the prevalence of internalizing and externalizing problems.ConclusionsChildren exposed to substance abusers have more mental health problems than general population, even when compared to peers living in similar low-income areas. This is a group that should be target of a selective preventive intervention.     

动作发展视域下幼儿足球促进粗大动作发展水平研究

探讨幼儿足球对幼儿粗大动作发展水平的影响,为干预幼儿粗大动作发展提供依据。选取嘉兴市108名5~6岁幼儿为受试对象,以班级为单位随机分为干预组与对照组。干预组进行12周幼儿足球游戏活动教学,2次*40min/周;对照组幼儿为静态性的课堂班级活动。干预前后采用PGMQS测量幼儿位移能力、操控能力及平衡能力。采用独立样本t检验、配对样本t检验及协方差分析两组幼儿前后测结果的差异性。结果显示:①干预前,两组幼儿粗大动作发展水平无显著性差异(P>0.05);干预后,两组幼儿粗大动作发展水平存在显著性差异(P<0.05),干预组高于对照组。②干预组和对照组幼儿后测结果与前测结果间均存在显著性差异(P<0.05),后测结果高于前测。研究结果表明幼儿粗大动作发展存在延长效应,但结构化幼儿足球游戏活动明显提高了幼儿粗大动作发展水平。因此建议抓牢幼儿早期动作发展的敏感期,以动作发展为主线科学设计幼儿足球游戏活动并保证活动的顺利开展,为幼儿健康、全面发展奠定良好的基础。     

Healing after traumatic events: Aligning interventions with cultural background and religious and spiritual beliefs

Historically, disaster response efforts have focused primarily on basic physical survival and safety—addressing medical emergencies and ensuring adequate shelter and supplies of food and water. However, in addition to physical survival, relief efforts must also consider strategies to promote emotional healing and psychological well-being. In particular, those who intervene must consider the acceptability of intervention strategies, taking into account survivors' cultural background, religious customs, and spiritual beliefs. This article offers recommendations to better align school-based therapeutic interventions with children's religious and spiritual beliefs.     

Effectiveness of a school-based intervention to prevent child sexual abuse—Evaluation of the German IGEL program

BackgroundChild sexual abuse (CSA) is a problem with severe consequences for victimized children. A variety of interventions have been developed and implemented over the last decades to prevent CSA. However, most of them have not been systematically evaluated to determine their effectiveness. The IGEL program is a school-based intervention to prevent CSA in third-grade primary school children in Germany.MethodsThis study was conducted using a quasi-experimental design, in which almost 300 children and their parents from eight intervention and four control schools were surveyed three times (pretest, posttest, 3 months later). In order to measure outcomes, a questionnaire was developed based on validated instruments to assess the knowledge, courses of action and self-protective skills of the children. Furthermore, increased anxiety and generalized touch aversion were examined as potentially harmful side effects of the program.ResultsThe results clearly demonstrate increased CSA-related knowledge and courses of action in children from the intervention group compared to the control children. These effects were medium-sized and sustained for at least three months after the last session. No meaningful negative side effects were detected in the evaluation for either the children or parents.ConclusionThe outcome evaluation indicates that the IGEL program is an effective intervention in terms of knowledge about CSA and known courses of action, and may therefore contribute to the prevention of CSA in primary schools. Despite this positive core finding of the intermediate outcomes, some adaptations of the program to children with different cultural backgrounds were made prior to further dissemination.     

Executive functioning and word reading in Hong Kong Chinese children: A 1-year longitudinal perspective

This study examined the bidirectionality between kindergarten children's executive functioning (EF) and word reading across two time points. Participants were 523 Hong Kong Chinese-speaking children (mean age at Time 2 = 64.59 months; 52.9% male) and their parents. At Time 1, children were administered the measures of EF skills: inhibitory control, attention shifting, working memory and Chinese word reading. They were reassessed with these measures at Time 2 one year later. Results from the cross-lagged panel model revealed that, controlling for child age, gender and parental education levels, children's word reading at Time 1 was significantly predictive of their working memory at Time 2, but that the three EF skills at Time 1 were not predictive of word reading at Time 2. These findings underscored the role of early word reading in promoting children's working memory.     

浅谈运动员管理的信息化

本文旨在对信息化发展下运动员管理方面的问题进行简要的概述,提出信息化下运动员管理中存在的问题并进行分析,为信息化条件下如何对运动员进行管理提供借鉴。     

郑板桥的爱子之道及其启示

清代郑板桥的“爱子之道”和家教思想表现在爱子而不娇溺,教子首在“做个好人”,从小抓紧爱心教育,顺应儿童“天机”自由发展以及重视家教与师教结合诸方面,对现代家庭教育可引发有益的启示。