Relationship Reciprocation Modulates Resource Allocation in Adolescent Social Networks: Developmental Effects

Adolescence is characterized as a period of social reorientation toward peer relationships, entailing the emergence of sophisticated social abilities. Two studies (Study 1: N = 42, ages 13–17; Study 2: N = 81, ages 13–16) investigated age group differences in the impact of relationship reciprocation within school‐based social networks on an experimental measure of cooperation behavior. Results suggest development between mid‐ and late adolescence in the extent to which reciprocation of social ties predicted resource allocation. With increasing age group, investment decisions increasingly reflected the degree to which peers reciprocated feelings of friendship. This result may reflect social‐cognitive development, which could facilitate the ability to navigate an increasingly complex social world in adolescence and promote positive and enduring relationships into adulthood.     

大数据思维范畴探究

大数据思维有两层含义:一是人们思想上对大数据的认识和重视,这是一种思维态度;二是大数据思维范畴,这是一种思维方式。大数据思维范畴是大数据时代主观逻辑和客观逻辑的有机统一,反映了大数据这一新生事物存在发展的辩证关系。大数据的汹涌来潮,会改变人们传统的对可能和现实、必然和偶然、原因和结果、部分和整体、精确和模糊等一系列思维范畴的认识。     

基于PLC桥式起重机控制系统

本文把可编程序控制器和变频器应用于桥式起重机控制系统上,根据桥式起重机的运行特点,将桥式起重机控制系统采用变频调速系统,运用STEP7编程软件对桥式起重机控制系统进行设计,控制大车、小车的运行方向和加减速,以及吊钩的升、降方向和加减速。     

不确定环境下组织间信任与合作创新绩效研究

管理者如何在不确定环境下管理好组织间信任模式,继而提升企业合作创新绩效成为企业面临的现实问题。本文基于战略决策视角分析不确定环境下组织间信任对合作创新绩效的影响机制。研究结果显示,组织间计算信任与关系信任对企业间合作创新绩效的影响具有差异性,具体表现为组织间计算信任能显著提升企业间合作创新绩效,组织间关系信任与企业间合作创新绩效间呈倒U型非线性关系,且关系信任的合作创新激励效应强于计算信任。进一步,市场不确定正向调节关系信任与合作创新关系,负向调节计算信任与合作创新关系。行为不确定负向调节关系信任与合作创新关系,正向调节计算信任与合作创新关系。本文丰富了供应链网络下组织间信任与企业创新发展相关理论研究,为企业在不确定环境下管理合作信任模式提供借鉴与指导。     

羽毛球运动员选材研究综述

研究上世纪80年代至今的我国羽毛球项目运动员选材的发展历程,指出选材研究的成就和现状,并对将来发展给予展望。     

湖北省羽毛球运动员认知特征的比较研究

以湖北省90名羽毛球运动员和在校大学生为研究对象,研究不同运动水平受试者安静状态下心理认知指标特征。结果表明:运动水平相对较高的羽毛球运动员体现出较好的认知能力。     

哈尔滨医科大学轮滑课程的实践研究

轮滑运动符合时代特点和学生特点,学生们喜爱程度逐年提高,有利于终身体育观的形成。通过问卷调查、文献资料和数理统计等研究方法,对哈尔滨医科大学普通本科生开设轮滑课程的相关问题以实践的形式进行研究、分析。研究显示,哈尔滨医科大学轮滑课程发展比较成熟,已经初步形成了轮滑课程体系;普通本科生学生对轮滑课的学习兴趣很高,认为开设轮滑课非常必要,普通本科生开设轮滑课程取得了良好的教学效果。研究还发现,学生最大希望在大一期间学习轮滑,因此大一是开设轮滑课的最佳时期;采取增加课时满足学生需求、多渠道培训师资力量完善轮滑教材、加强受伤防范意识和技能的教学与训练、加强轮滑标准场地建设等积极措施,保障轮滑课的顺利开展。     

民商事案件涉外性之判断研究

正确判断民商事案件是否涉外,直接关系到案件在整个诉讼程序中的各项事宜,而目前学界内对该问题持相对不同的两种观点,两者各有所长,也都在某些程度上存在缺陷.     

The nature of naive explanations of natural selection

Unlike some pivotal ideas in the history of science, the basic notion of natural selection is remarkably simple and so one might expect most students to easily grasp the basic principles of the Darwinian theory; yet many students nevertheless have difficulty understanding Darwinian evolution. We suggest that misconceptions about natural selection arise from mistaken categorization. Our thesis for explaining students’ failure to understand this concept or evolution in general is not that they necessarily fail to understand individual Darwinian principles; rather, they often fail to understand the ontological features of equilibration processes, of which evolution is one instance. They thus attribute the evolutionary process in general, and natural selection in particular, with event‐like properties. For example, naive students appear to focus on the idea of survival of the fittest, but embed this idea within an event ontology that involves actors struggling to overcome obstacles and achieve goals. Results showed that most naive subjects’ evolutionary explanations reflected an event ontology. Furthermore, event ontology attributes were positively correlated with non‐Darwinian explanations; by contrast, equilibration attributes, when present, were positively correlated with key Darwinian principles. These findings suggest that students would greatly benefit from science instruction that emphasized the underlying ontology of modern evolutionary theory.     

广东省沿海欠发达城市群众体育行政部门发展现状调查

以广东省沿海欠发达城市中的5个地级市的3个层次的政府群众体育行政部门为研究对象,运用实名面访问卷调查、文献资料调研、现场访谈、观察和数理统计等研究方法,对基层群众体育管理机构、管理人员专业结构、国民体质监测、信息交流、组织化程度和群体行政部门之间业务联系的非协调发展现状等进行了调查与研究,并提出相应对策。