户籍制度改革背景下农民工就业与社会保障的问题研究     

李迪 《湖北函授大学学报》2016,(5):70-71,107

户籍制度的改革涉及到城乡之间基本公共产品和服务,由于城乡资源配置的不同甚至城区之间资源分配的不同,导致户籍制度的改革面临着重重阻碍。在户籍制度改革背景下,进城务工农民的身份发生了巨大变化,与农民工自身关系密切的就业与社会保障问题愈发凸显。本文通过梳理户籍改革的历史进程和总结近年来户籍制度改革所取得的成果,将农民工在户籍制度改革背景下的就业与社会保障问题进行研究和探讨。  相似文献   

半定规划的齐次不可行内点算法     

吴岳  刘红卫  谢迪 《中国科学院大学学报》2016,33(3):317-328

为降低半定规划(SDP)问题的迭代复杂度,并且有更好的数值实验结果,提出一种新的宽邻域上的齐次不可行内点算法.半定规划的KKT条件是单调互补问题(MCP),通过构造齐次模型(HMCP)以及提出新的宽邻域来解这个齐次模型,得到半定规划问题的最优解.这种算法容易判定原问题是否可行.在NT方向,证明迭代点在新的宽邻域内是收敛的,且迭代复杂度为O(√nlogL),其中n是SDP问题的维数,L=Tr(X⁰S⁰)/ε,其中ε是需要的精度,(X⁰,S⁰)是迭代起始点.这个复杂度比一般的半定规划不可行算法的迭代复杂度低.提供了数值实验,证明此算法比其他不可行算法具有更好的数值实验结果.  相似文献   

不同年龄段女子足球运动员 Yo － Yo间歇恢复性测试与有氧、无氧能力的关联研究     

孙哲  陈效科  丰保成  徐萌 《成都体育学院学报》2016,(6):103-109

本研究以中国国家女子足球队 U －12、U －15、U －19集训队伍的52名运动员为实验对象，分别进行了 Yo － Yo IR1、Yo － Yo IR2、最大摄氧量、平均无氧功率测试，以分析 Yo － Yo 间歇恢复性测试与不同年龄段女子足球运动员有氧、无氧能力的关系。相关性分析表明：（1）U －12年龄组女子足球运动员 Yo － Yo IR1、Yo － Yo IR2测试与最大摄氧量测试结果之间低度相关，而与平均无氧功率结果间呈高度相关；（2）U －15年龄组运动员 Yo － Yo IR1、Yo － Yo IR2和平均无氧功率结果间中度相关，而2者和运动员的最大摄氧量没有明显的相关关系；（3）U －19年龄组运动员 Yo － Yo IR1、Yo － Yo IR2测试成绩和最大摄氧量结果间显著相关，而与平均无氧功率间关联程度很弱。结论：Yo － Yo间歇恢复性测试可较好地评价处于青春期女子足球运动员的无氧能力，以及成年女子足球运动员的有氧能力。  相似文献   

基于在线开放课程的大学英语教学模式在听障全纳学生中的应用     

闵笛  韩梅 《中国轻工教育》2019,(2):88-92

在"互联网+"的时代,在听障全纳专业大学生的大学英语教学过程中引入基于在线开放课程的教学模式具有重要的理论和现实意义。本论文是基于在线开放课程的大学英语教学模式在听障全纳学生中的课堂教学实践。实践表明,引入基于在线开放课程的教学模式后,提高了听障全纳学生学习的主动性,增加了教师的教学密度,使学生可以进行个性化学习,学生英语成绩显著提高,四六级通过率也大幅上升。在线开放课程在听障全纳学生的大学英语教学中的应用初见成效。  相似文献   

微文化背景下大学生思想政治教育研究     

李博  崔海燕  艾荻 《教育教学论坛》2019,(30):34-35

随着微文化的不断发展,全国各地大学生的沟通交流方式越来越趋向于网络流行化。就现实角度而言,微文化动摇了高校思想政治教育的权威性,对传统思政教育的模式以及内容皆产生了一定的冲击,增加了高校思政教育者的难度,弱化了学生对主流价值观的认同。文中首先就微文化进行简要概述,其次针对微文化背景下的大学生思政教育提出有效的策略。  相似文献   

Embracing the Opportunities Ahead: An Analysis of Communication Position Announcements for 2013–2014     

Rain Wuyu Liu  Joshua C. Nelson  Di Pei  Yiting Yang 《Communication Research Reports》2016,33(3):259-264

Knowing what the Communication job market is can be helpful and informative when planning how to build a program of study or research. On the other side, those who are looking for a job or are preparing for future job hunting also need knowledge about the current job market to help make decisions and predictions. To facilitate these processes, this article surveys the entirety of job postings posted on NCA’s CRTNET service and Spectra publication over the course of 2013 and 2014. The analyses provide an in-depth look at what kind of positions are being offered, which have tenure-track options, what degrees are required, if and what research methodological experience is needed, what kind of institution is offering the position, whether grant and/or teaching experience is desired, and what kinds of topical specializations are sought after.  相似文献   

公共档案馆微信公众平台服务质量评价研究   总被引：2，自引：1，他引：1  

宋雪雁  张岩琛  王小东  孟欣欣  邓君 《图书情报工作》2016,60(16):39-49

[目的/意义] 从用户感知角度对公共档案馆微信公众平台服务质量评价进行深入地分析与探讨,为公共档案馆微信公众的平台技术改进和服务质量的提升提供数据支持和参考。[方法/过程] 通过问卷调查构建公共档案馆微信公众平台服务质量评价框架和评价假设模型,运用SPSS软件,并利用探索性因子分析法对假设模型进行检验,根据结果对评价假设模型进行修正,并对修正后的评价模型进行讨论。[结果/结论] 构建公共档案馆微信公众平台服务质量评价模型,从用户的视角全面衡量微信平台上公共档案馆服务的效果和用户满意度。  相似文献   

中国神话的历史化及其对中国叙事文的影响     

朱迪光 《安庆师范学院学报(社会科学版)》2001,20(4):51-55

中国古代曾出现的将神话传说本身改造成历史的神话历史化运动 ,使中国古代的体系神话不同于古希腊的体系神话 ,并且由于神话历史化内容不仅是将神话传说的内容改造成历史甚至是现实内容 ,而且还包含着将现实的人物神化、将现实内容非现实化倾向 ,致使中国古代的叙事文 ,无论是历史叙事文、志怪类叙事文 ,还是文学叙事文都受其影响  相似文献   

Assessment of three-dimensional joint kinematics of the upper limb during simulated swimming using wearable inertial-magnetic measurement units     

Silvia Fantozzi  Andrea Giovanardi  Fabrício Anício Magalhães  Rocco Di Michele  Matteo Cortesi  Giorgio Gatta 《Journal of sports sciences》2016,34(11):1073-1080

The analysis of the joint kinematics during swimming plays a fundamental role both in sports conditioning and in clinical contexts. Contrary to the traditional video analysis, wearable inertial-magnetic measurements units (IMMUs) allow to analyse both the underwater and aerial phases of the swimming stroke over the whole length of the swimming pool. Furthermore, the rapid calibration and short data processing required by IMMUs provide coaches and athletes with an immediate feedback on swimming kinematics during training. This study aimed to develop a protocol to assess the three-dimensional kinematics of the upper limbs during swimming using IMMUs. Kinematics were evaluated during simulated dry-land swimming trials performed in the laboratory by eight swimmers. A stereo-photogrammetric system was used as the gold standard. The results showed high coefficient of multiple correlation (CMC) values, with median (first–third quartile) of 0.97 (0.93–0.95) and 0.99 (0.97–0.99) for simulated front-crawl and breaststroke, respectively. Furthermore, the joint angles were estimated with an accuracy increasing from distal to proximal joints, with wrist indices showing median CMC values always higher than 0.90. The present findings represent an important step towards the practical use of technology based on IMMUs for the kinematic analysis of swimming in applied contexts.  相似文献   

Effects of tapering on physical match activities in professional soccer players     

Mohamed Saifeddin Fessi  Nidhal Zarrouk  Valter Di Salvo  Cristoforo Filetti  Alan R. Barker 《Journal of sports sciences》2016,34(24):2189-2194

ABSTRACT

This study aimed to examine: (i) the effect of decreasing training load (TL) during taper weeks on physical match activities in professional soccer players, and (ii) to disclose the relationship between weekly TL and physical match activities. Rating of perceived exertion was collected after each training session and match to quantify the TL in 19 professional players over 17 standard and 7 taper weeks during the season. Physical match activities were quantified by a computerised match analysis system and compared between standard training and taper weeks. Compared to standard weeks, the duration and frequency of training sessions during the taper weeks decreased (?21.7% and ?18.8%, respectively; P < 0.01) with no change in intensity (?4.8%; P = 0.09). Consequently, the weekly TL decreased during the taper weeks (?25.5%; P < 0.01). Increases in distance covered by intense running (+15.1%; P < 0.05), high-intensity running (HIR) (+15.7%; P < 0.01), number of sprints (+17.8%; P < 0.05) and number of high-speed runs (+15.7%; P < 0.05) were observed during the seven matches played after the taper weeks. High relationships were observed between TL and HIR distance covered, number of HIR and number of sprints (r = ?0.53; r = ?0.55; r = ?0.65, respectively; P < 0.01). Decreasing TL during taper weeks by reducing training duration and frequency but maintaining intensity was associated with an increase in physical activities during matches. However, it needs to be determined whether tapering or other match factors led to the changes in match activity.  相似文献