针刺和静力牵张对大负荷运动后骨骼肌收缩结构变化影响的免疫电镜研究

用免疫电镜的方法观察大负荷运动后骨骼肌收缩结构变化时M蛋白、α-辅肌动蛋白和肌球蛋白的定位,以探索超过习惯负荷后收缩结构延迟性变化的性质,以及针刺和静力牵张对促进其恢复的机理,结果发现:在多组力竭性工作后,收缩结构发生变化的同时,伴有该结构的免疫标记密度下降以及有关收缩蛋白的免疫标记向其结构以外区域扩散,这一结果提示:超过习惯负荷后收缩结构变化或解体是由于延迟性的收缩蛋白的降解优势所致。由于这种变化是一过性的,经过休息和调整训练负荷即可能恢复,并未形成稳定的改变,因而其性质仍可认为是生理性的或是生理向病理性变化的过渡状态。针刺和静力牵张能通过加强收缩蛋白的合成代谢而有效地促进收缩结构的恢复并出现疼痛的消除,其作用的机理尚待进一步的研究。     

读者权利:现状、维护与保障

维护和保障读者权利是图书馆的使命.论述了读者权利的法律化、内涵以及保障读者权利的原则.     

跳水运动员颈椎损伤的X线特征及其防治

112例跳水运动员颈椎X线结果显示,正常者仅21例(18.8％),异常者91例(81.2％),其中诊断为颈椎病者 27例(22.9％)。主要病变为环枢椎损伤,椎体及附件退行性变,与成年人 X线不同的是椎间隙虽狭窄,但无椎间盘变性,椎体变形而无骨赘形成等,认为这是青少年骨骼发育成长与损伤相互制约的结果,是运动性应力性损伤的特征,与该项目动作特点密切相关。     

科技期刊版式设计中空白的处理

从科技论文内容的整体与层次之间的关系和读者视觉上的立体效果等几个方面,论述在科技期刊版式设计中空白的作用及其地位,并探讨版式设计中如何恰当使用空白.     

针刺配合中药外敷治疗产后急性乳腺炎及护理

目的:观察针刺配合中药外敷治疗产后急性乳腺炎及护理临床疗效。方法:96例产后急性乳腺炎患者,以针刺配合中药外敷治疗配合综合护理。结果:显效:69例,有效:15例,无效:12例。总有效率:87.5%。结论:以针刺配合中药外敷配合综合护理治疗产后急性乳腺炎效果良好。     

岔巴沟流域不同下垫面对降雨径流关系影响规律分析

随着人类活动的增强,不同下垫面对地表径流的影响日益显著。本文选择黄河岔巴沟流域,采用野外人工控制条件下的降雨实验,针对不同下垫面类型、不同下垫面覆盖度以及不同的处理方式等情况下进行了水文过程的实验研究,并对不同植被覆盖度、不同耕作措施、降雨径流系数随时间的变化规律、不同下垫面对径流系数的影响等方面进行了分析与初步研究。结果表明,土地利用类型的变化对黄土沟壑地区的降雨径流关系有很大影响,其中耕作措施的使用对降雨径流关系的影响远大于地表覆盖率变化所产生的影响。地表覆盖率单因素变化时,稳定产流时的产流量变化不超过10%,而当采用耕作措施进行单因素分析时,稳定产流时的产流量大于20%。在相同雨强下,草地与裸地的出流量有非常明显的差异,草地的出流量约为裸地出流量地50%,草地与裸地对降雨径流关系地影响差异较大,在小雨强的时候,草地对降雨有较强的滞留作用,随雨强的增加,这种功能明显减小,而裸地没有明显的差异。     

试析CA光盘数据库的使用技能

本文针对大部分用户对外文教据库的陌生及使用困难。主要介绍了外文教据库CA的特点、使用方法与技能．以及对检索结果的处理。     

Preschool work against bullying and degrading treatment: experiences from an action learning project

This article deals with experiences from an action learning project against bullying and degrading treatment among nine Swedish preschools. Even though definitions of bullying and degrading treatment tend to lead to thoughts of school-age children rather than preschoolers, previous research shows that bullying occurs in preschool as well. Our data consist of documentation of improvement work carried out in the preschools that were analysed from both a peer culture perspective and a school improvement perspective. Our main results show that the preschools, by identifying challenges and actions anchored in the local context, ‘hit the target’ in their work against bullying and degrading treatment in the preschools. However, the children and their perspectives were rarely taken into account in the improvement work, which we consider as ‘missing the point’. Didactic implications for further preschool action learning projects are discussed.     

现浇混凝土楼板裂缝成因与防治措施

现浇钢筋混凝土楼板裂缝的影响因素很多.本文主要从材料、设计及施工等几个方面的原因着手分析,并针对上述成因提出相应的裂缝防控措施,对已形成的裂缝提出有效的补强加固方法.     

Successful tubes treatment of esophageal fistula

Aim: To discuss the merits of "tubes treatment" for esophageal fistula (EF). Methods: A 66-year-old female who suffered from a bronchoesophageal and esophagothoratic fistula underwent a successful "three tubes treatment" (close chest drainage, negative pressure suction at the leak, and nasojejunal feeding tube), combination of antibiotics, antacid drugs and nu-tritional support. Another 55-year-old male patient developed an esophagopleural fistula (EPF) after esophageal carcinoma operation. He too was treated conservatively with the three tubes strategy as mentioned above towards a favorable outcome. Results: The two patients recovered with the tubes treatment, felt well and became able to eat and drink, presenting no complaint. Con-clusion: Tubes treatment is an effective basic way for EF. It may be an alternative treatment option.