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排序方式: 共有1699条查询结果,搜索用时 15 毫秒
1.
Fei-yan Li Xi-sheng Xie Jun-ming Fan Zi Li Jiang Wu Rong Zheng 《Journal of Zhejiang University. Science. B》2009,10(9):659-667
EMT in a pressure magnitude- and duration-dependent manner, and that this TEMT is accompanied by TGF-β1 secretion. 相似文献
2.
针刺第二掌骨桡侧全息心穴对运动中血压的影响 总被引:1,自引:0,他引:1
对 2 0名体院学生在运动负荷中的血压变化情况进行了研究。对其中 10名大学生进行为期 3周的针刺第二掌骨桡侧全息心穴。结果显示 :3周针刺第二掌骨桡侧全息心穴治疗后 ,实验组在运动中的收缩压 (SBP)与舒张压 (DBP)均明显低于对照组 ,有显著性差异 (P <0 .0 5 ;P <0 .0 1) ,脉压差变化不明显 ,表明针刺第二掌骨桡侧全息心穴治疗有助于改善心脏功能 ,降低血压 ,提示针刺第二掌骨桡侧全息心穴治疗可能成为提高运动中心功能的有效手段。 相似文献
3.
土的固结过程与渗透性质关系密切,但传统的固结仪不能进行渗透试验.该文研制了一种渗透固结装置,既能进行固结试验和渗透试验,又能测量固结过程中的孔压.装置构造简单,操作便捷,密封性能好,可自动记录孔压、时间等参数.该装置应用于研究生的土工试验教学,促进了土力学理论与实践教学的融合,不仅加深了学生对理论知识的理解,提高了学生... 相似文献
4.
BackgroundIndividuals with diabetes have greater central arterial stiffness, wave reflections, and hemodynamics, all of which promote the accelerated cardiovascular pathology seen in this population. Acute aerobic exercise has been shown to be an effective strategy for reducing central arterial stiffness, wave reflections, and hemodynamics in healthy individuals; however, the effects of acute aerobic exercise in reducing these outcomes is not well established in people with diabetes. Recently, implementation of high-intensity interval exercise (HIIE) has shown superior improvements in cardiovascular health outcomes when compared to traditional aerobic exercise. Yet, the effect of HIIE on the aforementioned outcomes in people with diabetes is not known. The purpose of this study was to (i) describe the central arterial stiffness, wave reflections, and hemodynamic responses to a bout of HIIE and moderate-intensity continuous exercise (MICE) in adults with diabetes; and (ii) compare the effects of HIIE and MICE on the aforementioned outcomes.MethodsA total of 24 adult men and women (aged 29–59 years old) with type 1 (n = 12) and type 2 (n = 12) diabetes participated in a randomized cross-over study. All participants completed the following protocols: (i) HIIE: cycling for 4 × 4 min at 85%–95% of heart rate peak (HRpeak), interspersed with 3 min of active recovery at 60%–70%HRpeak; (ii) MICE: 33 min of continuous cycling at 60%–70%HRpeak; and (iii) control (CON): lying quietly in a supine position for 30 min.ResultsA significant group × time effect was found for changes in central systolic blood pressure (F = 3.20, p = 0.01) with a transient reduction for the HIIE group but not for the MICE or CON groups. There was a significant group × time effect for changes in augmentation index at a heart rate of 75 beats/min (F = 2.32, p = 0.04) with a decrease following for HIIE and MICE but not for CON. For all other measures of central arterial stiffness and hemodynamics, no significant changes were observed (p > 0.05).ConclusionA bout of HIIE appears to lead to a greater transient reduction in central systolic blood pressure than the reduction observed following MICE; however, both HIIE and MICE improved augmentation index at a heart rate of 75 beats/min in people with diabetes. There was no significant difference in response to HIIE and MICE in all outcomes. This provides preliminary evidence on the role of HIIE on such outcomes in people with diabetes. 相似文献
5.
张彩玲 《辽宁师范大学学报(社会科学版)》2006,29(6):41-43
目前,我国存在着较为严重的失业现象,解决就业问题对维护社会稳定,促进经济发展,全面建设小康社会具有重要的意义。在深入分析我国就业压力成因的基础上,提出政府在解决国民就业问题上应采取的积极调控措施。 相似文献
6.
化青报 《安阳师范学院学报》2007,(3):121-122
高校青年教师所处的特殊位置、环境和所担当的特殊角色、使命,使其在社会变革和转型过程中承受着多方面的心理压力,需要社会、学校、家庭和教师本人共同努力,采取切实措施进行有效疏导、调适和应对。 相似文献
7.
8.
经过对多风机通风网络分析,利用现有的VNETPC模拟程序,建立了多风机风压优化计算机调节系统.该系统允许计算机自动调整多风机风压,直到各用风地点获得最佳可接受的风量分配为止. 相似文献
9.
便携式多参数监护仪的研制 总被引:3,自引:0,他引:3
本介绍了一种便携式人体多参数监护仪的研制方法,包括:心电检测、血压检测、血氧饱和度检测、呼吸检测模拟电路的设计,以及存储单元、A/D转换器、USB通讯口等接口模块的设计。 相似文献
10.
Yukari Takimoto Amos 《International journal of qualitative studies in education》2016,29(8):1002-1015
AbstractThis qualitative study investigated the negative impacts minority teacher candidates receive from white teacher candidates in a required multicultural education class. The findings reveal that four teacher candidates of color had difficulty positioning themselves among the overwhelming silencing power of whiteness in the class. The white students were tactful at evading power and race and flattening the existing hierarchical power relations through the discourses of colorblindness and by preying on the minority instructor. Their understanding of diversity was also shallow. On the other hand, the teacher candidates of color were afraid that they might be labeled as the ones who spoke up against the white students and fearful of the possibility of retaliation and ostracism from the white peers. It seems that the teacher education program’s structure allowed the white candidates to impose strong negative peer pressure on the teacher candidates of color. 相似文献