大学生体育心理健康教育初探

基于学校体育心理健康教育建设的开展尚处在初始阶段的现状，对青少年学生身心健康成长的重要意义及21世纪学校教育发展的迫切需要，提出了体育之于人的两维原始功能(即身体发展和心理健康建设功能)和谐发展不可或缺的理念，并在此背景下重新就小学体育心理健康教育建设的理论体系进行了构建，试图提供更加有效的理论和方法参考，发挥体育最优的育人环境。     

Associations between motor proficiency in children with history of maltreatment and living in social economically vulnerability

Maltreatment and living in poor socioeconomic conditions during childhood may implicate in deficits on motor proficiency, nevertheless, the literature on this issue is still scarce. The goal of the study was to investigate the possible associations among manual dexterity, aiming and catching tasks, and balance tasks for children who suffers maltreatment and lived in social vulnerability. Eighty-two (82) children (08-09 years old) participated in the study. Forty-one (41) belong to the (SEV-M Group) children living in social economic vulnerability and were previously maltreated (lived in foster homes as results of parental neglect and domestic violence), and 41 belong to the (SEV Group) children living in social economical vulnerability with no history of childhood maltreatment. Children were assessed using the Movement Assessment Battery for Children –2nd Edition. Structural Equation Modeling was used to analyze the data. The results suggest the existence of a variety of motor difficulties in the group of children who suffered from neglect and domestic violence. The statistics model showed a negative effect for children in at-risk environments (regression coefficient = −0.30) and only showed a significant effect (p = 0.04) for balance abilities. Traumatic experiences may have a negative effect on children’ balance proficiency.     

Social and dimensional comparisons in math and verbal test anxiety: Within- and cross-domain relations with achievement and the mediating role of academic self-concept

The present study builds on two strands of research: (1) the recently established generalized internal/external frame of reference (GI/E) model assuming social (comparing one’s achievement in one domain with the achievement of one’s peers in the same domain) and dimensional (comparing one’s achievement in one domain with one’s achievement in another domain) comparison processes in the formation of motivational constructs and self-perceptions, and (2) research on domain-specific facets of test anxiety. Using a sample of 5135 German seventh grade students, it is tested whether and how both comparison processes are involved in the formation of domain-specific facets of test anxiety when considering both the emotionality and worry components of test anxiety, and whether the relation between achievement and test anxiety is mediated through academic self-concept. When applying the GI/E model to test anxiety, the results showed negative relations between achievement and test anxiety within math and verbal (German) domains, but partially positive relations across domains. This pattern of relations emerged for both the worry and emotionality components while stronger achievement relations were found for worry. These findings indicate that dimensional achievement comparison processes operate in the formation of domain-specific test anxiety. Domain-specific academic self-concepts were found to mediate the relations between achievement and test anxiety within and across domains, the mediation being stronger for worry than for emotionality as an outcome. Boys and girls did not differ regarding direct and indirect relations among constructs. Implications for research on dimensional comparison processes and test anxiety are discussed.     

P2P技术浅析

文章先将P2P模式与传统的C/S模式相比较,并论述了P2P技术应用的几个领域、技术分类及其存在的一些问题.     

试论电子商务发展中的问题与对策

本文分析电子商务发展中遇到的电子签名安全问题、电子合同与商务电子邮件的证据保全问题以及电子支付问题。并就这些问题提出了相应的对策。     

Web2．0环境下虚拟企业的隐性知识管理策略研究

从讨论虚拟企业知识管理的特点与障碍入手，指出了虚拟企业隐性知识管理的必要性。通过分析Web2．0环境下隐性知识管理的新方式，探讨了Web2．0环境下虚拟企业的隐性知识管理策略：建立Web2．0环境下新的隐性知识管理平台、制定激励隐性知识共享的方法、构建隐性知识库和提供个性化的隐性知识共享服务。     

利用MBSA2．0和Qchain工具快速实现windows的安全更新

为了阻止计算机病毒的侵害以及黑客对计算机系统的入侵,保障计算机系统的安全.作为计算机使用者避免不了为服务器或者计算机终端上打上最新的补丁,这些补丁由微软工程组经过测试过的补丁程序,都针对了一系列已知的漏洞和缺陷而设计发布的,一般而言大家平时打补丁使用系统自带的Windows Update来更新.但是这种方法,往往需要我们人为的干预.本文介绍利用微软发布的MBSA2和Qchain自动实现补丁的更新.     

对我国B2B的一些思考

从B2B的现状入手,指出中国非常需要B2B;从B2B企业的内部环境对B2B出现的问题加以分析,并提出了相关对策,最后对B2B给予了展望。     

熔盐法制备锐钛矿相纳米TiO2

介绍了一种新的无机材料粉体的制备方法—熔盐法,以及该方法的部分应用。以该方法制备无机材料粉体操作简便,合成温度较其它合成方法低,合成的产物纯度高,且通过调整原料与盐的比例、熔盐的种类以及合成温度还可以控制粉体颗粒的形貌与尺寸。该方法具有很广阔的应用前景。     

玛瑙的形成原理

该文对宇宙岩石学基本原理、宇宙凝胶态矿物学基本原理、玛瑙形成的基本原理、各种玛瑙的形成原理、二氧化硅液态熔体分异原理进行了较深入地演绎阐述。作者通过长期对大量的玛瑙实物和玛瑙产地进行仔细观察和深入研究发现，玛瑙是在太空中形成的。在太空中运行的二氧化硅凝胶态熔球遭到砾石雨或砂尘暴撞击以后，在振动力和波动力的作用下，球体内就会建造出平面或曲面层状构造，冷却为固相后就形成了玛瑙。该文在结合实物的基础上，比较全面、系统地归纳出30余种玛瑙的形成原理。文中还例举了与各种玛瑙构造相同的各类岩石的形成原理。