基于SEM模型的中学生体育健康行为调查研究

运用文献资料法、数理统计法、调查法,根据我国健康行为教育开展情况,构建中学生体育健康行为干预模型,通过分析模型得出对中学生体育健康行为干预首要考虑的是情绪调控,其次分别是健康知识、锻炼意识及环境适应,并给出在体育教学中实际中学生健康行为发展干预的相关建议,明确体育健康行为教育的目的性、有效性,为当前学校体育教育落实提升学生核心素养提供力所能及的帮助。     

面向CPS的EAM研究

企业资产管理(EAM)已难以满足智能制造对设备维护的需求.将EAM纳入CPS技术体系,分析智能化设备维护需求,提出EAM必将向系统之系统(SoS)级CPS演化的观点,实现关键路径是建立设备数字孪生,构建故障模型和运行控制模型,使设备具备状态自感知、自评估、自决策、自执行能力,为EAM制定未来研发方向.通过CPS总线与相...     

Ongoing child welfare services: Understanding the relationship of worker and organizational characteristics to service provision

Ongoing child welfare services are put in place after completion of the initial maltreatment investigation when there is a perceived need to mitigate the risk of future harm. The knowledge of how clinical, worker, and organizational characteristics interact with this decision to provide ongoing child welfare services is not well integrated in the research literature. Using secondary data from the Canadian Incidence Study of Reported Child Abuse and Neglect-2008, this study’s primary objective is to understand the relationship of clinical, worker, and organizational characteristics to the decision to transfer a case to ongoing child welfare services and their relative contribution to the transfer decision in Canada. Findings indicate that several clinical level variables are associated with families receiving ongoing services. Additionally, organizational factors, such as type of services offered by the organization and the number of employee support programs available to workers, significantly predicted the decision to transfer a case to ongoing services. While no worker factors, such as education, amount of training, experience, or caseload, were associated with ongoing service receipt, the intraclass correlation coefficient of the final three-level parsimonious model indicated substantial clustering at the worker level. Results indicate that Canadian child welfare workers make decisions differently based on factors not available in the current study and that what would be deemed as important worker characteristics do not necessarily predict this outcome. Findings and implications for future research are discussed.     

The Effects of Age and Number of Demonstrations on Modeling of Form and Performance

Abstract

This study was designed to investigate the effects of age and number of demonstrations on both form (strategy employed) and physical performance on a Bachman ladder-balance task. College age (n = 60) and elementary age females (n = 60) were compared under four modeling conditions consisting of no, four, eight, and 12 demonstrations in an Age Group × Demonstration Group (2 × 4) MANOVA. Results indicated that college age students had higher performance and form scores than elementary age students. Only form differentiated the four demonstration groups. Participants receiving 12 demonstrations had higher form scores than the control participants. Form scores were analyzed in a discriminant function analysis to determine which of five form components differentiated the four demonstration groups. Results also revealed that climbing quickly was the component of form that differentiated the groups the most. It was concluded that matching form by the learner may be a more effective measure of modeling effects rather than inferring modeling from performance, especially in the initial stages of learning. In addition, it appears that the number of demonstrations needed to create modeling effects is task specific and dependent on the length of the practice period.     

层次分析法在人才招聘中的应用研究

目的探讨层次分析法在人才招聘中的应用.方法采用层次分析法（AHP）,将人的主观判断用数量形式表达和处理.结果采用AHP对人才招聘问题进行了研究与讨论,利用AHP法得出应聘人员对各工作类别的权重,通过建立最优分配模型,给出了按需择优录用分配方案.结论层次分析法可以对人才招聘中择优录用的分配方案给出一种好的方法.     

苗族服饰中的造型、色彩、图案的启示

本文分别从苗族服饰的造型、色彩、图案三个方面论述苗族服饰的产生过程、苗族服饰的特征内容,挖掘苗族服饰创作的源泉与深厚的内涵,为现代艺术设计开阔视野,提供启示.     

赛车前悬架和转向系统ADAMS/CAR建模及仿真

借助ADAMS/CAR,对某FSAE赛车双横臂独立前悬架和转向系统建立多体动力学模型,并对其进行前轮同向跳动仿真,对下控制臂球头铰上移和下移后再次仿真.仿真结果表明,下控制臂球头铰位置的变化对前轮定位参数影响显著.     

Ask Questions to Encourage Questions Asked

Abstract

We delineate some types of structured practice (modeling, requests, feedback, and space-making) that help students learn to pose appropriate questions and to initiate exploration of those questions. Developing skills requires practice, so we suggest ways to embed structured practice into existing class sessions. Including structured practice is nuanced, instructor-specific, and depends on context. Therefore, we give examples of implementation in an inquiry-based learning (IBL)-influenced calculus class, in a partially IBL mathematics for liberal arts class, and in a completely IBL class for gifted high school students.     

A prototype of workflow management system for construction design projects

1 Introduction 1 In recent years there is a growing understanding of the importance of effective design management to facilitate a coordinated building design within budget, and to ensure the smooth operation of a project [1]. Therefore, it becomes a certain tendency that management of construction design project should combine with information technology (IT) to approach information share and process integration. Since the application of computer-aided design technology (CAD) in China at la…     

高梁分子遗传图谱研究进展

本文从临时性作图群体和永久性作图群体两方面概述了高粱分子标记遗传图谱的研究进展,比较了不同分子标记和不同作图群体在高粱图谱构建上的差异,展望了高粱遗传图谱的研究方向.