心衰康煎液对阿霉素心衰模型大鼠心肌的影响

目的观察中药复方制剂"心衰康煎液"对心衰大鼠心脏血流动力学的影响及心肌细胞的病理学改变.方法利用pclab实验记录分析系统观察和分析各实验组大鼠左心室内压、对大鼠心肌切片H.E染色镜下观察.结果心衰康使心衰得到明显改善,心肌细胞无明显变性、坏死.结论中药复方"心衰康煎液"对心衰大鼠的心肌病变有明显改善,从而产生良好的抗心衰作用.结论     

预防学生伤害事故发生的措施

在影响学校稳定的众多因素中,学生伤害事故最引人关注。我国在校学生人身伤害事故的频繁发生,给受害学生及其家长带来身体及精神上的极大伤害。为了学生的健康发展,减少和避免学生伤害事故,学校应采取措施积极预防。     

Ankle and knee kinetics between strike patterns at common training speeds in competitive male runners

The purpose of this study was to investigate the interaction of foot strike and common speeds on sagittal plane ankle and knee joint kinetics in competitive rear foot strike (RFS) runners when running with a RFS pattern and an imposed forefoot strike (FFS) pattern. Sixteen competitive habitual male RFS runners ran at two different speeds (i.e. 8 and 6?min?mile^?1) using their habitual RFS and an imposed FFS pattern. A repeated measures analysis of variance was used to assess a potential interaction between strike pattern and speed for selected ground reaction force (GRF) variables and, sagittal plane ankle and knee kinematic and kinetic variables. No foot strike and speed interaction was observed for any of the kinetic variables. Habitual RFS yielded a greater loading rate of the vertical GRF, peak ankle dorsiflexor moment, peak knee extensor moment, peak knee eccentric extensor power, peak dorsiflexion and sagittal plane knee range of motion compared to imposed FFS. Imposed FFS yielded greater maximum vertical GRF, peak ankle plantarflexor moment, peak ankle eccentric plantarflexor power and sagittal plane ankle ROM compared to habitual RFS. Consistent with previous literature, imposed FFS in habitual RFS reduces eccentric knee extensor and ankle dorsiflexor involvement but produce greater eccentric ankle plantarflexor action compared to RFS. These acute differences between strike patterns were independent of running speeds equivalent to typical easy and hard training runs in competitive male runners. Current findings along with previous literature suggest differences in lower extremity kinetics between habitual RFS and imposed FFS running are consistent among a variety of runner populations.     

Lower limb alignment characteristics are not associated with running injuries in runners: Prospective cohort study

There is conflicting evidence on the association between lower limb alignment characteristics and the incidence of running-related injury (RRI). Therefore, the primary aim of this study was to investigate the association between lower limb alignment characteristics and the incidence proportion of RRI in a convenience sample of recreational runners. A total of 89 recreational runners were included in this prospective cohort study. These participants had been running for at least six months and were injury-free at baseline. Lower limb alignment measurements were conducted in order to calculate lower limb discrepancy, Q-angle, subtalar angle and plantar index. All participants also answered a baseline and biweekly online surveys about their running routine, history of RRI and newly developed RRI over a period of 12 weeks. The prevalence of previous RRI and the 12-week incidence proportion of new RRI were calculated. Logistic regression analysis was performed to estimate the association between lower limb length discrepancy, Q-angle, subtalar angle and plantar ach index with the incidence proportion of RRI. The prevalence of previous RRI was 55.1% (n?=?49). The 12-week incidence proportion of new RRI was 27.0% (n?=?24). Muscle injuries and tendinopathies were the main types of RRI identified. The lower leg and the knee were the main anatomical regions affected. We did not find significant associations between lower limb length discrepancy, Q-angle, subtalar angle and plantar arch index and injury occurrence.     

商贸口译中的语用失误例析

本文以语用学的语用失误理论为指导，通过对商贸口译中存在的语用失误现象的研究，探讨了商贸口译中语用失误的表现形式及其成因，并说明了这些语用失误对口译交流可能造成的负面影响。     

《家庭暴力防治法》立法问题研究

目前,我国家庭暴力问题令人担忧,其中重要原因之一是我国现行法律在规制家庭暴力方面存在不足。应制定专门《家庭暴力防治法》,明确《家庭暴力防治法》在法律体系中的地位,明确家庭暴力举证的特殊要求,明确相关机构干预家庭暴力的责任,明确规定施暴者的法律责任,在立法时并对弱势群体有所倾斜。     

"爱心工程"与"争夺工程"的探索与实践

目前,在全国高校中普遍存在着一些因网络游戏成瘾而成绩大幅下降甚至不能正常毕业的学生,对此,中国科大及时而有组织地实施“爱心工程“与“争夺工程“.文章阐述了网络游戏之所以被称为“电子鸦片“的种种特性,提出了对待学生上网玩游戏应该持有的态度,并以中国科大管理学院为例,总结提炼了实施“爱心工程“与“争夺工程“的若干实践经验,提出了一套系统的工作思路和对策.     

紫外线的应用、预报及其预防

随着现代科学技术的进步,紫外技术已得到广泛应用和发展,人类对紫外线的认识越来越全面,对紫外线的预报和预防越来越重视,紫外线与人们日常生活的关系也越来越紧密。然而,在《大学物理》、《光学》等教程中却很少涉及有关紫外线方面的内容,文章力图向大家介绍有关这方面的情况。     

从儒法之对比谈先秦儒学官学化的失败原因

通过先秦时期儒法地位悬殊差异的比较研究，从三个方面分析了儒学官学化失败的原因。认为先秦学官学化失败不是偶然的，从一定程度上讲是儒家的超前性特质所决定的。这说明，一种思想能否成为统治思想只能取决于时代的需要和选择。     

试论CPA的验资风险及风险防范

从产生验资风险的原因着手,分析验资风险的防范措施,使我们认识到只有严格执行验资程序,保持应有的职业谨慎,不断提高执业能力,充分防范验资风险,才能使我国的CPA事业走上健康的发展道路。