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31.
《Child abuse & neglect》2014,38(11):1794-1800
Investigation for bleeding disorders in the context of suspected non-accidental injury (NAI) is inconsistent. We reviewed the hematologic evaluation of children who presented with symptoms of bleeding and/or bruising suspicious for NAI to determine the frequency of hematologic tests, abnormal hematologic laboratory results, and hematologic diagnoses. A retrospective cohort study design was employed at two freestanding academic children's hospitals. ICD-9 codes for NAI were used to identify 427 evaluable patients. Medical records were queried for the details of clinical and laboratory evaluations at the initial presentation concerning for NAI. The median age for the population was 326 days (range 1 day–14 years), 58% were male. Primary bleeding symptoms included intracranial hemorrhage (31.8%) and bruising (68.2%). Hematologic laboratory tests performed included complete blood cell count in 62.3%, prothrombin time (PT) in 55.0%, and activated partial thromboplastin time (aPTT) in 53.6%; fibrinogen in 27.6%; factor activity in 17.1%; von Willebrand disease evaluation in 14.5%; and platelet function analyzer in 11.7%. Prolonged laboratory values were seen in 22.5% of PT and 17.4% of aPTT assays; 66.0% of abnormal PTs and 87.5% of abnormal aPTTs were repeated. In our cohort, 0.7% (3 of 427) of the population was diagnosed with a condition predisposing to bleeding. In children with bleeding symptoms concerning for NAI, hemostatic evaluation is inconsistent. Abnormal tests are not routinely repeated, and investigation for the most common bleeding disorder, von Willebrand disease, is rare. Further research into the extent and appropriate timing of the evaluation is warranted.  相似文献   
32.
Childhood maltreatment, anger, and racial/ethnic background were examined in relation to physical health, psychological well-being, and blood pressure outcomes. This study used data from a diverse sample of African American, Latino, and Caucasian participants (N = 198). Results from a series of multiple regressions indicated anger and total childhood maltreatment were robust predictors of poorer health. Although correlational analyses found maltreatment from the mother and father were associated with poorer health outcomes, when considered as part of the regression models, only a relationship between maltreatment from the mother and physical health was found. Greater anger scores were linked with lower blood pressure, particularly systolic blood pressure. Generally, more psychological and physical symptom reporting was found with greater anger scores, and higher levels of total maltreatment also predicted physical symptoms. The pattern of interactions indicated anger was more detrimental for African American participant's (and marginally so for Latino participant's) physical health. Interestingly, interactions also indicated total childhood maltreatment was related to fewer symptoms for Latino participants. Although child maltreatment may be viewed as a moral and/or human rights issue, this study provides evidence that it can also be viewed as a public health issue. Our study demonstrated that known health risk factors such as anger and maltreatment may operate in a different pattern dependent on ethnic/cultural background. The findings suggest health and health disparities research would benefit from greater exploration of the differential impact of certain moderating variables based on racial/ethnic background.  相似文献   
33.
雾湿天气条件对运动能力影响的研究   总被引:2,自引:0,他引:2  
为了解雾湿天气对机件各种功能活动的影响,本文在晴朗和雾湿二种天气条件下,对机体最大吸氧量以及完成相同递增负荷直至最大工作能力时机体的体力状况进行研究。结果发现,雾湿天气使最大摄氧量和握力显著下降;进行轻量负荷后,心率和RPE与晴朗天气无异,但进行亚极量以上强度运动后,心率和RPE显著增大;在最大负荷工作时,雾显天气使运动至力竭时间显著缩短,而最大心率和最高血乳酸均显著增大。因此认为,雾湿天气对运动能力有不良的影响,并提示在雾温天气下进行体育教学和训练时要适当降低运动负荷。  相似文献   
34.
通过对比实验分析了音乐在献血过程中具有缓解献血者紧张、恐惧心理的作用,着重对献血过程中音乐辅助效用以及可能的内在机制进行了分析,为献血过程提供了一种重要的心理护理方法。  相似文献   
35.
用数学上的黄金分割法,阐述了人体重要黄金点脐、乳头、喉结、尺骨鹰嘴、髌骨和心率、血压的黄金序列点与体育运动的关系,提供了一种寻找人体重要结构或部位,认识生理指标波动规律,预测对运动训练影响的新方法。  相似文献   
36.
浅析运动强度对运动员血氨值的影响及相关研究   总被引:2,自引:0,他引:2  
血氨作为一项新的运动生化检测指标已经广泛应用到体育实践中,尤其是在体育科学领域受到了广泛关注。针对我院20名足球专项运动员进行了两次不同运动强度的训练:短跑—400m全速跑;足球赛—90min的足球对抗赛。实验结果表明:运动员完成相应负荷运动后血氨值显著高于安静状态测值(P<0.01),表明其与运动强度的高度相关性。实验结果提示:血氨指标能够较精确地评价运动员的运动负荷强度、机体的机能状态、疲劳程度及恢复情况。  相似文献   
37.
对8名受试者在不同运动负荷条件下,按预先设定的内容和顺序采用抹、按、揉捏、叩打、膊运、伸拔等手法进行经穴按摩刺激。男女生对照组与实验组在不同负荷及不同时间经穴刺激的条件下,心血管系统在运动后的恢复程度上存在差异。  相似文献   
38.
对男子400m短跑运动员采用300m不同负荷跑的血乳酸、血尿素、尿蛋白变化进行了实验研究,发现相同距离,不同的负荷量和强度对人的机体产生的影响不同,训练的效果、达到的训练目的也不相同。建议训练应根据需要有目的地选择负荷量和强度。  相似文献   
39.
The present study reveals the effect of Musa paradisiaca stem juice on blood glucose level (BGL) of normal & diabetic rats. The dose of 500 mg/kg bodyweight produces a significant rise of 28.3% in blood glucose level after 6h of oral administration in normal rats. Whereas, in sub diabetic rats the same dose produces a rise of 16.4% in blood glucose levels within 1h during glucose tolerance test (GTT) and a rise of 16% after 4 h in fasting blood glucose levels of severe diabetic cases. These results were unexpected and important to report as other species of Musa like Musa sapientum has been reported for its hypoglycemic effect.  相似文献   
40.
毽球运动是中华民族传统体育宝库中一颗璀璨的明珠,其发展历史悠久、源远流长,近年来由于其所具有的趣味性、观赏性、健身性、对抗性和娱乐性等特点,已经被广泛流传,并形成独具特色的毽球竞技运动项目。本课题旨在通过对高水平毽球运动队生理生化指标的测试,为教练员和运动员提供训练依据,以便于更好的根据运动员的身体机能状况合理地调整训练计划,更好的为毽球运动技术成绩的提高服务。通过研究我们发现采用心率、血乳酸、肌酸激酶、血尿素氮和尿蛋白等指标的测试,能够反映运动员机体的机能状态和对训练负荷强度的适应情况,防治过度疲劳的出现,为教练员更好的为运动员调整运动负荷强度奠定坚实的理论基础,对运动成绩的提高具有不可忽略的效果。  相似文献   
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