中国足球超级职业联赛的竞争性平衡分析--基于相对积分率标准差法

对国内外职业体育竞争性平衡的概念、测量方法进行综述、分析和整合,发现一些具体的衡量方法在实际运用中存在各种问题,如胜率标准差法只能运用于或胜或负的比赛中,无法运用于衡量像足球这样具有平局情况的赛事。从而提出相对比较优化的“相对积分率标准差法”,以具体量化的方式衡量各赛季中超联赛各俱乐部之间的竞争性平衡程度。结果发现：（1）相对积分率标准差法在一些具有平局情况的赛事中能够科学量化其竞争性平衡程度;（2）中超联赛与英超联赛相比,自2004赛季以来各俱乐部（运动队）在竞技能力竞争性上一直处于高度不平衡状态。并从中超联赛的内外部各方面的因素进行分析,提出若干建议。     

我国单板U型场地滑雪运动员平衡训练及肌电特征研究

运用表面肌电和摄影技术,结合功能解剖学,对我国不同运动等级的单板U型场地滑雪运动员平衡训练及肌肉的肌电特征进行了分析。结果表明：运动员在平衡训练中对身体姿态的有效调整与控制,有赖于竖脊肌、腹外斜肌和腹直肌的贡献率和协调有序的工作。虽然不同等级运动员在平衡动作控制模式和肌肉工作顺序上有所差异,但主要工作肌群趋于相同。健将级运动员之所以能对身体姿态实现高效调整与控制,不仅在于工作肌群的贡献度较高、能调动更多的肌肉参与到肌肉控制中,还在于双侧肌肉群的协调发力。而一级运动员和二级运动员由于还缺乏更好地控制肌肉的能力,致使在运动中出现了肌肉有效电活动过高或不足的状况,不仅平衡感和稳定性差、对身体平衡姿态控制不足,而且也缺乏对失衡动作的调控。     

高尔夫行业工作者心理满意度及应对方式调查分析──以南京为例

研究目的与方法:采用《情感量表》和《应对方式量表》对南京高尔夫球场工作者进行调查分析。研究结果:南京高尔夫行业工作者,专业对口达75%,83.3%是大专学历,月薪2 500元以下占80.6%;工作3年(不含)以上的心理满意度总分显著高于0-3年的工作者(P<0.05),从得分来看,男性心理满意度略高于女性,月薪高的人群心理满意度略高一些;遇到问题时男性比女性更多的采用积极应对方式,而且存在显著性差异(P<0.05)。工作0-3年采取消极的应对方式低于工作3年以上的人且存在显著性差异(P<0.05),月薪2 500以下比2 500元以上更多的采取积极的应对方式,而且存在显著性差异(P<0.05)。     

《三字经》的“中和”观念

《三字经》是中华民族流传至今影响甚大的蒙学读物,700年来深受群众的欢迎,其中隐含的＂中和＂观念是中国传统文化的核心观念之一,影响深远,对于当今的和谐社会建设具有理论价值和现实意义。     

中小学新课程改革的困境及其消解

中小学新课程改革就是新旧利益主体冲突、碰撞乃至斗争,最后达成妥协与“重叠共识”的过程。政府、教师与学生等核心利益相关者在中小学新课程改革中经历着反复的利益博弈或权力博弈,形成错综复杂的关系网络,导致课堂教学的困境。为深化新课程改革,走向三方利益均衡是中小学课堂教学改革的未来之路。     

人文理念与当代社会的伦理重建

伦理重建事实上是一种文化层面的修复或修正,但任何带有新思想新文化新生活色彩的伦理倡导都离不开对人的深邃本性的全面准确理解;对人的世界特殊性的领悟是人文思想的一个关键;文化传承包括对历史发展各阶段中关于人文的理念的继承与发扬。在当代社会的伦理重建中我们需要平衡自然与超自然两个方向,并力求找到社会与个体的完美平衡点;向弱势群体倾斜是世界文化的一个大趋势,也应成为伦理重建的一个要点;更多地建立起能够深入人心的个体性较强的内在伦理也是伦理重建的目标之一;人文理念中的理性意识也会造成伦理重建的一些困惑。     

Branding of Flemish higher education institutions: a strategic balance perspective

Branding of higher education institutions (HEIs) is an expanding area of research. The existing literature mainly draws on the strategic management perspective that argues that HEIs are pressured to develop brands which differentiate them from their competitors. Past studies, however, do insufficiently take into account that most HEIs are positioned in systems that contain both competitive pressures (to differentiate) and institutional pressures (to meet taken-for-granted expectations), where neither of the pressures is clearly dominant. Our multiple case study of the five Flemish universities finds that branding can simultaneously address competitive and institutional pressures and that the universities studied combine aspects of distinctiveness with elements of similarity.     

生猪养殖场经营管理模型

本文对影响生猪养殖规模及盈亏平衡的各因素进行分析,根据未来三年内生猪价格的预测数据,建立了大型生猪养殖场的经营管理模型,得出较合理的经营管理策略,为养殖户加强管理,提高利润提供参考.     

不同天气条件下古尔班通古特沙漠南缘梭梭(Haloxylon ammodendron)群落能量通量日变化特征

基于2018年夏季在古尔班通古特沙漠南缘采用波文比系统实测的气象及能量资料,分析该区不同天气条件下梭梭群落能量特征及能量分配的日变化特征。结果表明：1） 该区夏季晴天和多云天各能量曲线变化趋势基本一致,呈单峰型,土壤热通量最小,晴天和多云天感热略高于潜热;阴天能量传输以感热为主;雨天整体热通量最小,且各能量曲线呈多峰形变化,能量传输以潜热为主。2） 白天,波文比值雨天最小,且小于1,晴天、多云天、阴天依次增大,且大于1;夜间,晴天、阴天、多云天、雨天的波文比值依次增大,均小于1。3） 不同天气条件下能量分配曲线白天变化平稳,夜间波动显著,日出和日落前后波动最为剧烈;因不同天气条件下辐射强度和日照时数的不同,曲线早、晚剧烈变化开始时间有所不同。     

How students reason about matter flows and accumulations in complex biological phenomena: An emerging learning progression for mass balance

In recent years, there has been a strong push to transform STEM education at K-12 and collegiate levels to help students learn to think like scientists. One aspect of this transformation involves redesigning instruction and curricula around fundamental scientific ideas that serve as conceptual scaffolds students can use to build cohesive knowledge structures. In this study, we investigated how students use mass balance reasoning as a conceptual scaffold to gain a deeper understanding of how matter moves through biological systems. Our aim was to lay the groundwork for a mass balance learning progression in physiology. We drew on a general models framework from biology and a covariational reasoning framework from math education to interpret students' mass balance ideas. We used a constant comparative method to identify students' reasoning patterns from 73 interviews conducted with undergraduate biology students. We helped validate the reasoning patterns identified with >8000 written responses collected from students at multiple institutions. From our analyses, we identified two related progress variables that describe key elements of students' performances: the first describes how students identify and use matter flows in biology phenomena; the second characterizes how students use net rate-of-change to predict how matter accumulates in, or disperses from, a compartment. We also present a case study of how we used our emerging mass balance learning progression to inform instructional practices to support students' mass balance reasoning. Our progress variables describe one way students engage in three dimensional learning by showing how student performances associated with the practice of mathematical thinking reveal their understanding of the core concept of matter flows as governed by the crosscutting concept of matter conservation. Though our work is situated in physiology, it extends previous work in climate change education and is applicable to other scientific fields, such as physics, engineering, and geochemistry.