首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   284篇
  免费   2篇
  国内免费   7篇
教育   163篇
科学研究   66篇
体育   37篇
综合类   13篇
文化理论   3篇
信息传播   11篇
  2023年   2篇
  2022年   2篇
  2020年   6篇
  2019年   9篇
  2018年   4篇
  2017年   4篇
  2016年   3篇
  2015年   14篇
  2014年   31篇
  2013年   24篇
  2012年   18篇
  2011年   27篇
  2010年   13篇
  2009年   15篇
  2008年   10篇
  2007年   13篇
  2006年   20篇
  2005年   16篇
  2004年   10篇
  2003年   10篇
  2002年   13篇
  2001年   6篇
  2000年   6篇
  1999年   2篇
  1998年   7篇
  1997年   4篇
  1996年   2篇
  1982年   1篇
  1981年   1篇
排序方式: 共有293条查询结果,搜索用时 15 毫秒
171.
在体育教学训练过程中,膝关节的损伤比较常见,其中髌骨劳损在膝关节损伤中占较大的比例。文章对髌骨劳损的损伤机制、治疗方法及运动康复手段进行了阐述,并提出了预防髌骨劳损的手段和措施。  相似文献   
172.
运动锻炼对原发性高血压患者治疗作用的研究   总被引:2,自引:0,他引:2  
目的:探讨运动锻炼对原发性高血压(EH)患者治疗的作用。方法:将18例EH(轻度10例为A组,中度8例为B组)患者经三个月的运动(散步、慢跑及太极拳等)治疗,进行诊断和疗效判定;A、B两组的疗效以及全部患者治疗前、后的血压值分别进行比较。结果:经诊断11例血压达到正常,6例轻度,1例中度:按疗效标准判定,显效12例,有效5例,无效1例,总有效率94.4%;A组的疗效优于B组(P<0.01);治疗后的血压明显降低(P<0.01)。结论:适当的运动锻炼对轻、中度EH患者疗效显著,是一种较好的降压疗法;轻度EH患者的疗效更显著,更适合运动疗法;散步、慢跑及太极拳等运动组合是一种治疗轻、中度EH有效的运动处方。  相似文献   
173.
Medical neglect is under-researched and the extent of the problem in Australia is unknown. We conducted a review of the referrals for medical neglect to the Child Protection Unit (CPU) at a tertiary children’s hospital in Sydney over a 5 years period, from 2011 to 2016, to determine what medical conditions are being referred, the reason for the medical neglect concern and whether cases are managed in line with American Academy of Pediatrics (AAP) guideline on medical neglect.61 cases of medical neglect were identified, constituting 4.1% of all referrals to the Child Protection Unit for physical abuse and neglect. There was a wide variety of medical conditions. Most were chronic medical conditions (87%). The top two medical conditions were chronic and complex multi-system disorders (37.7%) and endocrine disorders (18%). The majority of medical neglect were related to concerns that the caregivers were unwilling to follow medical advice (45.9%) or unable to provide necessary medical care (26.2%). In line with the AAP guideline on medical neglect, all cases were managed by addressing communication difficulties (100%) and resource issues were addressed in 80% of cases. A report to statutory child protection agencies was made in 50% of cases. Directly observed therapy and medical contracts were used in 30% and 26% of cases. We conclude that children with chronic medical conditions may be at risk of medical neglect. Communication difficulties were a factor in all cases. Statutory agency intervention is often required.  相似文献   
174.
精品课程建设是高等学校教学质量与教学改革工程的重要组成部分,自治区级《模具选材与热处理技术》精品课程在提高教师素质、优化教学内容、改革教学方法、完善教材体系、加强教学监控、改革考试考核方法、加强师生互动等方面做了许多探索和实践,收到了良好的教学效果。  相似文献   
175.
Primary spontaneous pneumothorax (PSP) commonly occurs in tall, thin, adolescent men. Though the pathogenesis of PSP has been gradually uncovered, there is still a lack of consensus in the diagnostic approach and treatment strategies for this disorder. Herein, the literature is reviewed concerning mechanisms and personal clinical experience with PSP. The chest computed tomography (CT) has been more commonly used than before to help understand the pathogenesis of PSP and plan further management strategies. The development of video-assisted thoracoscopic surgery (VATS) has changed the profiles of management strategies of PSP due to its minimal invasiveness and high effectiveness for patients with these diseases.  相似文献   
176.
Objective: Adrenocortical carcinoma (ACC) is a rare but highly malignant tumor, and its diagnosis is mostly delayed and prognosis is poor. We report estrogen receptor (ER) expression in this tumor and our clinical experiences with 17 ACC cases. Methods: The data of the 17 patients (9 females and 8 males, age range from 16 to 69 years, mean age of 42.6 years) with ACC were reviewed, and symptoms, diagnostic procedures, treatment, and results of follow-up were evaluated. Immunohistochemistry was used to detect ER expression in tumor samples from the 17 patients. Results: At the time of diagnosis, 4 tumors were classified as Stage Ⅰ, 4 as Stage Ⅱ, 3 as Stage Ⅲ, and 6 as Stage Ⅳ. Eight patients demonstrated positive nuclear immunostaining of ER. The prognosis of patients with ER positive was significantly better (P<0.05) than that of patients with ER negative, with 1- and 5-year survival rates at 86% and 60% for ER-positive patients, and 38% and 0% for ER-negative patients, respectively. Conclusion: ER-positivity may be one of the factors associated with a worse prognosis of ACC.  相似文献   
177.
A clinical study of the efficacy of topical corticosteroids on dry eye   总被引:2,自引:0,他引:2  
Objective: To evaluate the effect of topical corticosteroid for treatment of moderate or severe dry eye. Methods: Sixty eyes of 30 patients with moderate or severe dry eye, who were not sensitive to artificial tears, were treated with 0.1% fluorometholone eye drops. Subjective symptom and objective tests were used to evaluate the efficacy of treatment before and after application of 0.1% fluorometholone eye drops for 1 week and 1 month. Side effects were also evaluated. Results: After 1 week of treatment, subjective symptoms were improved in all dry eye patients; objective tests were improved in all dry eye patients 1 month after treatment, and the difference was significant. Conclusion: Topical corticosteroid drops can rapidly and effectively relieve the symptoms and signs of moderate or severe dry eye.  相似文献   
178.
粒化高炉矿渣是高炉炼铁的副产品经水淬急冷处理后得到.本文通过对高炉矿渣特性、高炉矿渣的研究和利用现状进行阐述.以高质量、高效益、节能降耗、保护环境、二次资源能源再利用为目的,开发水淬矿渣多种利用途径.  相似文献   
179.
在分析固定场景中车辆图片结构特征的基础上,提出了从遥感图中检测车辆的方法,具体介绍了将遥感灰度图像转换为二值图像,并进一步阐述了边缘检测(轮廓的跟踪)、图像分割、模式识别、机器视觉等作用.  相似文献   
180.
长波辐射的计算理论及其在建筑节能设计中的应用   总被引:2,自引:0,他引:2  
在建筑物表面的热负荷计算中,地面反射辐射和大气长波辐射是两个影响热负荷平衡的重要因素.在给出地面反射霜射和大气长波辐射在建筑围护结构热负荷中的计算公式基础上,分析了两者在热负荷计算中的重要性,并对长波辐射在建筑节能中的一些应用进行了探讨.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号