Development and validation of a mathematics anxiety scale for students     

Ho Kyoung Ko  Hyun Sook Yi 《Asia Pacific Education Review》2011,12(4):509-521

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教育、行业分割与性别收入差异——基于中国大学生就业调查的分析     

杨钋  程飞 《北京大学教育评论》2012,10(3):95-113

本文利用2009年北京大学的"高校毕业生就业调查"及2008年麦可思公司的"全国大学毕业生就业调查"数据,将行业分割纳入对中国大学毕业生性别工资差距的研究。本研究主要利用布朗-穆恩-扎罗斯全因素分解模型进行分析。结果表明,所有行业中都存在性别收入差距,该差距随着个体受教育程度的提高而增大。性别收入差距主要由行业内的性别收入差别导致,而非行业间的收入差异。此外,行业内的性别收入差别在本科毕业生群体中主要来源于行业内的性别歧视,硕士毕业生中的性别差异主要是由于性别间的个人特征差异所引起。因此,为了促进劳动力市场中的性别平等,政府应当首先考虑利用那些能改善行业内部性别歧视情况的政策工具。  相似文献   

Propolis modulates vitronectin, laminin, and heparan sulfate/heparin expression during experimental burn healing     

Pawe? Olczyk  Katarzyna Komosińska-Vassev  Katarzyna Winsz-Szczotka  Ewa M. Ko?ma  Grzegorz Wisowski  Jerzy Stojko  Katarzyna Klimek  Krystyna Olczyk 《Journal of Zhejiang University. Science. B》2012,13(11):932-941

Objective

This study was aimed at assessing the dynamics of vitronectin (VN), laminin (LN), and heparan sulfate/heparin (HS/HP) content changes during experimental burn healing.

Methods

VN, LN, and HS/HP were isolated and purified from normal and injured skin of domestic pigs, on the 3rd, 5th, 10th, 15th, and 21st days following thermal damage. The wounds were treated with apitherapeutic agent (propolis), silver sulfadiazine (SSD), physiological salt solution, and propolis vehicle. VN and LN were quantified using an immunoenzymatic assay and HS/HP was estimated by densitometric analysis.

Results

Propolis treatment stimulated significant increases in VN, LN, and HS/HP contents during the initial phase of study, followed by a reduction in the estimated extracellular matrix molecules. Similar patterns, although less extreme, were observed after treatment with SSD.

Conclusions

The beneficial effects of propolis on experimental wounds make it a potential apitherapeutic agent in topical burn management.  相似文献   

Motion controllers for learners to manipulate and interact with 3D objects for mental rotation training     

Shih‐Ching Yeh  Jin‐Liang Wang  Chin‐Yeh Wang  Po‐Han Lin  Gwo‐Dong Chen  Albert Rizzo 《British journal of educational technology : journal of the Council for Educational Technology》2014,45(4):666-675

Mental rotation is an important spatial processing ability and an important element in intelligence tests. However, the majority of past attempts at training mental rotation have used paper‐and‐pencil tests or digital images. This study proposes an innovative mental rotation training approach using magnetic motion controllers to allow learners to manipulate and interact with three‐dimensional (3D) objects. Stereovision allows learners to perceive the spatial geometric form of a 3D object. This approach allows learners to perceive 3D objects in space through stereovision and make mental rotation visible from each intrinsic and invisible mental rotation step using motion‐interaction methods. This study examines the effects of user training performance and perceptions. The results indicate that the proposed approach can improve user mental rotation ability effectively. Learners expressed high degrees of concentration toward the mechanism that included direct control and immediate feedback. The results also suggest that female testers perceive greater degrees of playfulness toward the mechanism and improve more through training than male testers.  相似文献   

Parametrically excited oscillation of stay cable and its control in cable-stayed bridges     

孙炳楠  汪至刚  高赞明  倪一清 《浙江大学学报(A卷英文版)》2003,4(1):13-20

This paper presents a nonlinear dynamic model for simulation and analysis of a kind of parametrically excited vibration of stay cable caused by support motion in cable-stayed bridges. The sag, inclination angle of the stay cable are considered in the model, based on which, the oscillation mechanism and dynamic response characteristics of this kind of vibration are analyzed through numerical, calculation. It is noted that parametrically excited oscillation of a stay cable with certain, sag, inclination angle and initial static tension force may occur in cable-stayed bridges due to deck vibration under the condition that the natural frequency of a cable approaches to about half of the, first model frequency of the bridge deck system. A new vibration control system installed on the cable anchorage is proposed as a possible damping system to suppress, the cable parametric oscillation. The numerical calculation results showed that with the use of this damping system, the cable oscillation due to the vibration of the deck and/or towers will be considerably reduced. Project supported by National Natural Science Foundation of China (No. 59978044)  相似文献   

关于我国社区教育政策研究的述评   总被引：1，自引：0，他引：1  

官华  杨钋 《职教论坛》2020,(1):77-83

社区教育在我国经过30多年的发展,目前最高层次的政策文件仍然是教育部门的工作意见。既有关于社区教育的研究比较多,但以公共政策、教育政策的基本理论和视角,对社区教育政策文件的研究还比较少。本文对社区教育政策的研究从政策演进、本质属性、政策执行、实施主体、域外研究等五个方面进行了综述,认为总体上存在研究数量还比较少;理论自觉性不够,研究深度有限;研究领域较为集中,重复性研究较多;涉外研究较少使用一手资料等问题。新时代对我国社区教育及其政策的研究,应进一步增强理论和学术规范意识、实证意识、本土意识,不断提升研究和解释中国社区教育发展及政策现象的水平。  相似文献   

产业集群与城市化分析——基于外部性视角     

陈柳钦  黄坡 《成都师专学报》2007,26(2):16-20

外部性产生了产业集聚的主要向心力，技术外部性和货币外部性是产业集群形成的原因，又是产业集群的重要结果，外部性、产业集群从聚集生产要素与产业方面共同推动了城市化的进程。产业集群为城市化集聚生产要素与产业，通过提升城市竞争力促进和推动城市化进程；而城市化给产业集群带来巨大的社会需求，为产业集群带来不断的要素与产业转移。可以说，城市化的本质是产业集聚，城市化的发展主要是产业集群的发展。只有将产业集群纳入城市发展的总体框架，在空间上围绕城市或城区而展开，才能更有效地推动城市基础设施建设和社会事业发展，更多地以近域推进的方式加快城市的发育和城市化的进程。  相似文献   

专业学位研究生教育的定位及教育模式探究1     

吴华杰  杨钋 《学位与研究生教育》2017,(5):58-63

通过对专业学位研究生教育的哲学基础、所依托的学科基础及其知识特点的分析,指出专业学位研究生教育应该采取知行结合、注重通过实践来获得专业知识和技能的教育方式,进而论证了在知识生产模式2下专业学位研究生教育应该采取工作场所学习模式,实践共同体是专业学位研究生进行工作场所学习的核心载体,体现了专业教育“做中学”、工学结合、产学合作的本质。  相似文献   

红强二甲基亚砜搽剂治疗慢性湿疹60例疗效观察     

高玮  秦泊  金飒 《孝感职业技术学院学报》2006,9(2):97-98

目的:观察红强二甲基亚砜搽剂治疗慢性湿疹的临床疗效及安全性。方法:治疗组60例外用红强二甲基亚砜搽剂,对照组60例外用舒肤特搽剂,每天2次,疗程3周。于疗程结束后记录疗效及副作用。结果:治疗组总有效率为90%,对照组总有效率为75%,经统计学处理有显著性差异,两组局部刺激反应发生率无显著性差异,但复发率有显著性差异。结论:红强二甲基亚砜治疗慢性湿疹比舒肤特更为有效。  相似文献   

职业院校非汉语言文学类专业学生语文学习兴趣问卷分析     

赵叵 《渭南师范学院学报》2012,(4):125-128

兴趣是学生学习的积极状态。影响高校非汉语言文学类专业学生语文学习兴趣的因素有工作、交际、环境、个人趣味等。正确分析不同专业学生语文学习兴趣成因,在广泛进行语文学习重要性教育的前提下,从教学内容选取、教学手段改进、语文课外活动序列化开展、教师语文素质与时俱进等方面着手,可以有效培养和提高学生的语文学习兴趣,进而提高高校非汉语言文学类专业语文教学的水平和效果。  相似文献