清代中期社会中下层妇女贞节意识初探     

舒丽萍 《渭南师范学院学报》2009,24(4):43-46

清代中期,在官方的大力倡导下,贞节观对妇女的束缚前朝未有。但与此同时,社会中下层仍存在着大量的寡妇再嫁现象和婚外性行为。上述现象的存在不能简单地归结于社会外在因素的影响,妇女自身的诉求和主观能动性亦在其中发挥了作用,贞节观并没有成为部分中下层妇女的基本价值取向。  相似文献   

小学低年级学生积极心理品质培养研究     

单志艳 《中国特殊教育》2010,(11)

小学低年级学生积极心理品质培养对个体成长具有非常重要的意义。本文了提出了小学低年级学生积极心理品质培养的主要内容：求知力、真诚、宽容、思维与洞察力、领导力。在此基础上提出了小学低年级学生积极心理品质培养的策略并展示了相关案例。  相似文献   

一类周期边值问题解的存在性及其奇异摄动     

陈福松 《闽江学院学报》2010,31(2):13-15

首先利用微分不等式研究如下类型的周期边值问题{y＇＇=f（t,y,y＇）,0〈t〈l y（0）=y（t）,y＇（0）=y＇（l）.的微分不等式与解的存在性,并在一定条件下把解延拓成为微分方程在无穷时间区N-Y-N期解,然后利用所得结果讨论奇异摄动现象．  相似文献   

刘庆邦小说中的悲悯情怀     

严国清 《廊坊师范学院学报》2010,26(6):32-34

刘庆邦以独特的个人话语和人文关怀表现了对生活在物质和精神双重重压下的人们的关注和同情。他的小说氛围大多弥漫着悲剧气息,正是这些对于苍生的悲悯和无可奈何,使得刘庆邦小说闪耀着强烈的人性光芒。这些悲剧气息在他的若干作品中表现在三个方面：人物的悲剧性命运;人物精神情感世界的悲剧;城市异乡者对城市身份认同的追问以及对融入城市的思考。  相似文献   

Improving mathematics results: does teachers’ academic optimism matter? A study of lower secondary schools     

Jana Straková  Jaroslava Simonová  David Greger 《School Effectiveness & School Improvement》2018,29(3):446-463

Educational effectiveness research has provided evidence about the importance of teacher beliefs and attitudes for teaching and learning. This study builds on the concept of academic optimism, which combines 3 aspects of a teacher’s professional creed: self-efficacy, trust, and academic emphasis. The study explores the functioning of the collective and individual measures of academic optimism in the Czech environment and studies its impact on students’ outcomes. The analyses are based on pilot data from 39 schools, 325 teachers, and 1,316 Grade 9 students and on the data from the Czech Longitudinal Study in Education (CLoSE), covering 163 schools, 1,469 teachers, and 4,798 students. The individual measure was selected for further studies based on 2-level confirmatory factor analysis. Two-level structural equation modelling showed a significant impact of a school’s academic optimism on students’ achievement even after controlling for prior achievement and socioeconomic status at both the student and the school level.  相似文献   

Lower leg and foot contributions to turnout in female pre-professional dancers: A 3D kinematic analysis     

Sarah L. Carter  Rebekha Duncan  Andries L. Weidemann  Luke S. Hopper 《Journal of sports sciences》2018,36(19):2217-2225

Turnout is a central element of classical ballet which involves sustained external rotation of the lower limbs during dance movements. Lower leg and foot compensation mechanisms which are often used to increase turnout have been attributed to the high incidence of lower limb injury in dancers. Evaluation of dancers’ leg posture is needed to provide insight into the lower limb kinematic strategies used to achieve turnout. The primary purpose of this study was to use 3D kinematic analyses to determine the lower leg and foot compensations that are incorporated by female university dancers to accentuate their turnout. Active and passive external tibiofemoral rotation (TFR) was also measured. A moderate-strong negative relationship was observed between hip external rotation (HER) and foot abduction in the three first position conditions. A moderate negative relationship was found between passive TFR and foot abduction in all first position conditions. Our findings suggest dancers are more likely to pronate, than rotate the knee to compensate for limited HER. Dancers with a limited capacity to pronate may force additional rotation via the knee. Ongoing research would benefit from more in-depth analyses of the foot/ankle complex using a multi-segment foot model.  相似文献   

汉江中下游水文测验方式发展方向初探     

匡威  刘超  许祥生  曹明鸣 《长江工程职业技术学院学报》2009,26(4):38-40

在满足社会对水文信息精度需求的前提下,水文测验方式方法技术创新迫在眉睫。文章分析了汉江中下游各控制站的测站特性和洪峰变化特征,并对皇庄、沙洋两站的中低水水位流量关系,概化为单一曲线等问题进行了探讨。  相似文献   

含时滞反应扩散方程周期解的存在唯一性     

宿娟  李树勇 《四川教育学院学报》2009,25(3):114-116

应用上下解和迭代方法研究了一类含多个离散时滞的单种群模型,得到了该方程周期解的存在唯一的一个充分条件。  相似文献   

国家优秀女子速滑运动员直道滑行中下肢功率情况分析     

王新  夏娇阳 《首都体育学院学报》2012,24(4):381-384

为了有效评价运动员下肢各环节在蹬冰过程中的贡献情况,借助爱捷三维录像解析系统和CY-BEXNORM等动测试装置获得国家健将级女子速滑运动员的运动学和动力学数据,并采用牛顿差值计算方法计算出与实际运动学数据相对应的关节力矩,在此基础上计算出下肢各环节在蹬冰时功率输出值。研究结果表明:髋关节在单支撑阶段适当伸展,有利于增加整个蹬冰阶段的大腿功率输出;高速度、大角度伸膝肌群肌力差,引起两人小腿峰值功率过早出现,减少双支撑蹬冰阶段功率输出;踝关节肌力不足,刻意展踝,加重了伸小腿肌力不足现象,减少小腿在整个蹬冰过程中的作用。  相似文献   

对脚斗士运动员下肢关节慢性损伤的研究     

赵辉 《山西师大体育学院学报》2012,(5):120-122

目的：研究长期进行脚斗士运动训练和比赛的人群下肢关节慢性运动损伤的情况。方法：以90名参加脚斗士运动训练四年以上不同专业学生为研究对象,通过问卷调查、访谈、X线、CT、核磁共振检查等方法对训练者下肢关节的慢性损伤情况进行调查并与未参加该项运动的学生对照组对比。结果：长时间从事脚斗士运动下肢关节的损伤情况与对照组存在差异,慢性损伤的发生率为：骶髂关节5.6%、髋关节3.3%、膝关节27.8%、踝关节34.4%、足关节16.7%,均高于对照组。结论：角斗士比赛及训练过程中存在慢性损伤的风险。训练时间过长、训练场地不规范、训练方式不合理、对运动损伤的认识不够是造成这些慢性损伤的主要原因,需要进一步加强管理及改进训练方法。  相似文献