基于缓解高职院校教师心理压力的EAP策略探析   总被引：1，自引：0，他引：1  

刘建琴 《职业技术教育》2011,32(17)

高职院校教师承担着重大的社会责任.面时教育教学改革、课程建设及学校生存发展提出的要求,教师源自社会、学校以及自身等方面的压力越来越大,心理负担日益加重.因此,有必要在高职院校中构建EAP体系,通过加强宣传、深化交流、开展培训等措施,缓解教师的心理压力,倡导并帮助教师健康快乐地教学.  相似文献   

基于GPS技术的多功能户外安全仪设计     

周启忠  徐娟  岳琨  谢永乐 《宜宾学院学报》2011,(6):43-47

以低功耗单片机MSP430F247为控制核心,通过对GPS模块、大气压传感器、湿度传感器(SHT71)与时钟芯片(DS1302)采集的信息进行处理,文中设计了一个能测量和显示经度、纬度和海拔高度、大气压力、温度、湿度、速度和移动方向的系统.该系统具有电子指南针、电子导航、路点轨迹描绘、天气预测、秒表、万年历、时钟、闹钟、音乐播放和自动校正时间的功能.  相似文献   

高职大学生就业压力、择业效能感及其关系研究     

万涵宇 《武汉职业技术学院学报》2011,10(2):101-106

采用随机抽样的方式对武汉职业技术学院2010届毕业生进行调查,采用问卷调查的方式了解了高职学生的就业压力源、择业效能感状况,并探讨了两者之间的关系。通过相关分析、t检验、方差分析、回归分析,结果表明,（1）高职学生就业压力普遍较大,其中缺乏求职帮助、专业供求矛盾、自我认识与定位成为就业压力最显著的三个来源。（2）高职生的就业压力有如下特点：女生压力大于男生,文科学生比理工科学生更多面临缺乏求职帮助和专业供求矛盾的压力。城市生在职业素质评价和就业心理预期两方面的压力显著高于农村生;非学生干部就业时的总体压力要普遍高于学生干部。（3）高职学生的择业效能感普遍不高,其中高职大学生在职业目标筛选方面的自信心最强。（4）高职大学生中,文科生在信息收集和制定计划两方面的择业效能感要显著低于理科和工科学生;高职生的择业效能感没有性别、城乡生源、是否学生干部等差异。（5）高职大学生就业压力和择业效能感之间有着密切的相关,其中,职业素质评价、自我认识与定位的压力越小,则高职大学生更有择业效能感。  相似文献   

开发支出资本化与企业创新     

冯晓晴  韩艳锦 《科研管理》2020,41(1):60-69

以2007至2017年沪深A股上市公司为研究对象,本文考察了开发支出资本化对企业创新的影响。,实证结果研究发现,开发支出资本化比例与企业创新呈倒U型关系。且结论在稳健性检验之后依然成立。表明：当开发支出资本化比例低于临界值时,由于抑制了管理层通过削减研发投资以实现盈余目标的动机得到抑制,从而促进企业创新;当开发支出资本化比例高于临界值时,促使管理层基于声誉风险管理层为避免将已资本化金额转为费用对当期盈余造成的负面冲击,进行过度研发投资,从而阻碍企业创新。说明不同开发支出资本化比例下,管理层研发投资不同动机对企业创新产生非线性影响。结论在稳健性检验之后依然成立。进一步分析还发现：,开发支出资本化通过研发投资效率作用于企业创新,而且管理层面临的盈余公告压力越大,开发支出资本化对企业创新的非线性影响更为显著。资本化通过非效率研发投资,作用于企业创新;盈余公告压力越大,资本化与企业创新之间的倒U型关系越明显。  相似文献   

IT engagement as a blessing and a curse? Examining its antecedents and outcomes in organizations     

《International Journal of Information Management》2020

Information technology (IT) engagement is defined as a need to spend more time using IT. Practice-based examples show that IT engagement can have adverse effects in organizations. Although users can potentially get more work done through IT engagement, observations show that the users might jeopardize their well-being and hamper their work performance. We aimed to investigate this complexity in the research on IT engagement by examining its potential antecedents and outcomes in organizations. Considering the potentially mixed outcomes, we developed a model to examine the effects of IT engagement on personal productivity and strain. We also aimed to explain the antecedents of IT engagement by drawing on the collective expectations for IT use. In particular, we examined the extent to which normative pressure on IT use drives users’ information load and IT engagement. Finally, we sought to understand whether users’ attempts to avert dependency on IT use reduced their IT engagement. Several hypotheses were developed and tested with survey data of 1091 organizational IT users. The findings help explain the role of normative pressure as a key driver of IT engagement and validate the positive and negative outcomes of IT engagement in organizations.  相似文献   

基于DISLab的两个热学实验设计     

王连友  王艳红 《科教文汇》2020,(8):131-132

本文利用数字化信息实验系统,对大气压影响水的沸点实验和做功改变气体内能两个实验进行了创新设计,实现实验现象与数据显示、图像处理等多模显示同步。学生在实验操作过程中,通过对比实验现象和多模显示内容,能够更加容易地得出相应的实验结论,改变了传统实验中实验现象与数据分析分离的问题。  相似文献   

Experiments on Cu-isotope fractionation between chlorine-bearing fluid and silicate magma: implications for fluid exsolution and porphyry Cu deposits     

Haihao Guo  Ying Xia  Ruixia Bai  Xingchao Zhang  Fang Huang 《国家科学评论(英文版)》2020,7(8):1319

Hydrothermal fluid is essential for transporting metals in the crust and mantle. To explore the potential of Cu isotopes as a tracer of hydrothermal-fluid activity, Cu-isotope fractionation factors between Cl-bearing aqueous fluids and silicate magmas (andesite, dacite, rhyolite dacite, rhyolite and haplogranite) were experimentally calibrated. Fluids containing 1.75–14 wt.% Cl were mixed together with rock powders in Au₉₅Cu₅ alloy capsules, which were equilibrated in cold-seal pressure vessels for 5–13 days at 800–850°C and 2 kbar. The elemental and Cu-isotopic compositions of the recovered aqueous fluid and solid phases were analyzed by (LA-) ICP–MS and multi-collector inductively coupled plasma mass spectrometry, respectively. Our experimental results show that the fluid phases are consistently enriched in heavy Cu isotope (⁶⁵Cu) relative to the coexisting silicates. The Cu-isotope fractionation factor (Δ⁶⁵Cu_FLUID-MELT) ranges from 0.08 ± 0.01‰ to 0.69 ± 0.02‰. The experimental results show that the Cu-isotopic fractionation factors between aqueous fluids and silicates strongly depend on the Cu speciation in the fluids (e.g. CuCl(H₂O), CuCl₂^– and CuCl₃²⁻) and silicate melts (CuO_1/2), suggesting that the exsolved fluids may have higher δ⁶⁵Cu than the residual magmas. Our results suggest the elevated δ⁶⁵Cu values in Cu-enriched rocks could be produced by addition of aqueous fluids exsolved from magmas. Together with previous studies on Cu isotopes in the brine and vapor phases of porphyry deposits, our results are helpful for better understanding Cu-mineralization processes.  相似文献   

不凝结气体对蒸汽浸没射流压力振荡的影响     

从跃磊  王迎春  陈伟雄  种道彤  严俊杰 《中国科学院大学学报》2017,34(2):135-140

通过实验研究不凝结气体（空气）对蒸汽浸没射流压力振荡特性的影响。结果表明：不凝结气体存在时压力振荡强度比纯蒸汽浸没射流时明显减小。随空气质量分数的增加，压力振荡峰值的位置沿轴向后移。过冷水温低于45℃时，峰值随空气质量分数的增加而增大；高于50℃时，随空气质量分数的增加而减小；水温在45~50℃之间时，峰值大致相同。压力振荡主频随空气质量分数、蒸汽质量流率和过冷水温度的增加而减小。  相似文献   

220kV变压器线圈现场施压及压板强度研究     

曾劲龙  谭家齐 《中山大学学报论丛》2000,20(1):24-27

对SFPSZ9－150000／220特大型变压器线圈现场施压进行了探讨性的试验，提供了一些可行性的计算方法，分析了试验结果并提出了存在问题与一些合理建议。  相似文献   

Impact absorption of tennis shoe-surface combinations     

S.?J.?DixonEmail author  V.?H.?Stiles 《Sports Engineering》2003,6(1):1-9

The aim of this study was to investigate, for typical shoes and surfaces used in tennis, the relative role of the shoe and surface in providing cushioning during running. Five test surfaces ranging from concrete to artificial turf were selected, together with two shoe models. Impact absorbing ability was assessed mechanically using drop test procedures and biomechanically using peak magnitude and rate of loading of impact force and peak in-shoe pressure data at the lateral heel. Differences in biomechanical variables between shoe-surface combinations were identified using a two-way ANOVA (p < 0.05). Mechanical test results were found to rank the surfaces in the same order regardless of the shoe model, suggesting that the surface is influential in providing cushioning. However, for all mechanical and biomechanical (p < 0.05) variables representing impact absorbing ability, it was found that the difference between shoes was markedly greater than the differences between surfaces. The peak heel pressure data were found to rank the surfaces in the same order as the mechanical tests, while impact force data were not as sensitive to the changes in surface. Correlations between mechanical and biomechanical impact absorption highlighted the importance of testing the shoe-surface combination in mechanical tests, rather than the surface alone. In conclusion, mechanical testing of the shoe-surface combination was found to provide a strong predictor of the impact absorbing ability during running if pressure data were used. In addition, for typical shoe-surface combinations in tennis, the shoe was found to have more potential than the surface to influence impact loading during running. Finally, in-shoe pressure data were found to be more sensitive than force plate data to changes in material cushioning.  相似文献