作图法求解形位公差和尺寸公差相互补偿关系     

李微微  方淳 《台州学院学报》2009,31(6):48-52

国家标准《公差原则》确定了形位公差和尺寸公差之间的关系。传统的方法是采用动态公差图来求解对应关系,但求解方法不够直观、形象。采用作图法求解尺寸公差和形位公差的相互补偿关系,能简洁、直观地得出结果。  相似文献   

罗马帝国早期宗教政策与基督教的发展     

李永斌 《衡阳师范学院学报》2009,30(2)

基督教产生以后发展异常迅速,其原因是多方面的,其中罗马帝国早期相对宽容的宗教政策是一个不能忽视的因素.罗马的一般性宗教政策具有"宽容"的特征,-帝国早期延续了这种宗教宽容政策,对早期基督教的政策也以宽容为主,甚至在特定时期还对基督教的传教活动进行保护.在这样相对宽容的环境中,基督教得以稳步发展,为后来基督教成为罗马帝国国教奠定了基础.  相似文献   

Recurrent pain and discomfort in relation to fitness and physical activity among young school children     

《European Journal of Sport Science》2013,13(5):591-598

Abstract

As an increase in pain symptoms among children has been shown in the last decades, the aim of this study was to describe perceptions of recurrent pain, measured physical fitness and levels of reported physical activity (PA) in children, and to investigate if any associations between PA, fitness and recurrent pain could be identified. A school-based study comprised 206 Swedish children 8–12 years old, 114 boys, 92 girls. A questionnaire with questions about perceived pain, self-reported PA and lifestyle factors was used. Health-related fitness was assessed by 11 physical tests. A physical index was calculated from these tests as a z score. High physical index indicated high fitness and low physical index indicated low fitness. ANOVA test, chi-square test and logistic regression analysis were used to compare active and inactive children. The prevalence of one pain location (head, abdomen or back) was 26%, two 11% and three 4% (n=206). Female gender, living in single-parent families, low PA and low subjective health were associated with reported recurrent pain. Children reporting high levels of PA had high physical index and reported low prevalence of pain symptoms. The physical index and level of self-reported PA decreased gradually the more pain locations. Physically active children had higher fitness levels and reported less pain symptoms than inactive peers. Coping with pain is an integral part of PA, and active children learn to cope with unpleasant body sensations which together with high fitness may reduce the perception of pain.  相似文献   

Insulin sensitivity derived from oral glucose tolerance testing in athletes: Disagreement between available indices     

Konstantinos Niakaris  Faidon Magkos  Nikos Geladas  Labros S Sidossis 《Journal of sports sciences》2013,31(10):1065-1073

The aims of the present study were to determine whether available “fasting” and oral glucose tolerance test-derived insulin sensitivity indices could effectively discriminate between individuals with higher than normal insulin sensitivity, and whether they would all provide similar information in clinical practice. Sprint runners (n = 8), endurance runners (n = 8) and sedentary controls (n = 7) received a 75-g oral glucose tolerance test. All participants were healthy lean males, aged 21?–?29 years. Besides glucose and insulin responses, a total of nine such indices were computed. Fasting as well as post-load glucose concentrations were similar in the three groups, while basal plasma insulin and the insulinaemic response to glucose were both higher in untrained individuals (at P?<?0.05 and P?<?0.02, respectively). There were no differences between endurance and sprint runners. The results for insulin sensitivity, however, were quite variable: three indices showed that both groups of athletes were more insulin-sensitive than controls; three indicated that this was the case for endurance runners only; one indicated that this was the case for sprint runners only; and two showed that sprint runners were more insulin-sensitive than either sedentary individuals or endurance runners (all differences were significant at P?<?0.05). Controlling for total body weight or lean mass did not effectively resolve this disagreement. Apparently, the various insulin sensitivity indices examined provided different quantitative and qualitative information, despite insulin action being greater in both groups of athletes relative to controls, as reflected by their similar glucose tolerance with lower insulin concentrations. We suggest, therefore, that the use and interpretation of such indices among physically active individuals be made with caution.  相似文献   

植物耐盐机制中的渗透调节   总被引：5，自引：0，他引：5  

王劲  杜世章  刘君蓉 《绵阳师范学院学报》2006,25(5):56-61

文章综述了植物在盐胁迫下耐盐机制中的渗透调节,以及近年来国内外克隆、鉴定的抗盐基因中细胞相容性物质合成基因的来源与作用机制,及它们在转基因植物中的遗传稳定性和转基因植物的抗盐性等。  相似文献   

胡鲁之间说“宽容“   总被引：1，自引：0，他引：1  

邵建 《南京晓庄学院学报》2004,20(1):54-58

胡适和鲁迅是20世纪中国最具影响力的两个知识分子,但是他们对宽容的态度却截然相反一个认为"容忍比自由更重要",一个则声称"一个都不宽恕".二者之容忍与不容忍,都有其特定的哲学基础,前者建立于自由主义的"无知"论,后者则基于真理的二元对立性.  相似文献   

法律人类学视野下的精神疾病     

吉红 《平原大学学报》2003,20(3):90-91

本运用法律人类学方法对于精神疾病进行了重新解读,认为精神病其实只是与主体所在化相对的一种异己感。在现代社会,我们需要的是一种多元和宽容,这是一种真正的自由主义精神。  相似文献   

教师德性的提升:素质教育的基石     

王玉红 《许昌学院学报》2007,26(3):152-154

教师德性相对于教师道德,主要是指教师在教育教学过程中,不断自我修养,自我陶冶,自我充实,自我价值实现的过程。教师德性超越了教师道德的群体性,把“德”指向了群体中的个体。教师德性的提升有助于教育工作的改善,有助于学生道德的进步,素质教育需要教师德性的提升,而教师德性的成长,又与教师的自律度、理解度、宽容心、责任心的提升密切相关。  相似文献   

培育历史意识 培养宽容品质——对当前大学历史教育之反思     

沙勇 《海南师范大学学报(社会科学版)》2012,25(9)

大学历史教育是对青年一代开展爱国主义教育和道德教育的主阵地。通过历史教育,培养大学生正确的历史观和价值观,进而凝练、升华为更高层次的历史意识和宽容品质,在更深的层面上思索个人与社会的关系,理性地看待和理解人类的过去,加深对现实的审视和洞察,丰富对未来的企望和憧憬,从而增进对社会和民族的责任感和使命感。这不仅是当前历史教育的主旨,更是促进大学生全面健康发展的基本要求。  相似文献   

‘The perfect pupil’: changing aims and changing measures of success in school RE     

Mairi Levitt  Fiona Muir 《British Journal of Religious Education》2014,36(2):218-233

In England and Wales, religious education (RE) in non-faith schools has gradually changed from Christian education to the study of many religions and philosophies. However, the core values of RE have continued to be related to concerns about social cohesion and the building of shared values. The article briefly discusses changes in RE since 1944 and then considers attitudes to RE among a group of year 11 pupils (age 15–16) in one large multicultural comprehensive school, collected through questionnaires and group discussions. The subject name had been changed from RE to Religious Studies (RS) in 2004. The focus here is on pupils’ ideas of ‘the perfect RS pupil’; used as a means to access their understandings of the subject’s aims and their teachers’ expectations. The most popular responses were that the ideal pupil would be knowledgeable about religions and be tolerant and empathetic. This is in accord with the current social and political agenda for RE but lays it open to criticism that tolerance becomes an end in itself encouraging indifference to religions rather than a critical, evaluative perspective.  相似文献