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   21879篇
  免费   2469篇
  国内免费   573篇
耳鼻咽喉   306篇
儿科学   344篇
妇产科学   300篇
基础医学   1757篇
口腔科学   326篇
临床医学   5617篇
内科学   1739篇
皮肤病学   108篇
神经病学   1459篇
特种医学   1412篇
外科学   2201篇
综合类   3770篇
现状与发展   1篇
一般理论   4篇
预防医学   2805篇
眼科学   251篇
药学   1078篇
  273篇
中国医学   875篇
肿瘤学   295篇
  2024年   165篇
  2023年   590篇
  2022年   1077篇
  2021年   1397篇
  2020年   1431篇
  2019年   1086篇
  2018年   991篇
  2017年   1044篇
  2016年   906篇
  2015年   890篇
  2014年   1915篇
  2013年   2095篇
  2012年   1429篇
  2011年   1400篇
  2010年   1136篇
  2009年   1000篇
  2008年   959篇
  2007年   841篇
  2006年   715篇
  2005年   590篇
  2004年   469篇
  2003年   404篇
  2002年   328篇
  2001年   257篇
  2000年   228篇
  1999年   172篇
  1998年   150篇
  1997年   135篇
  1996年   138篇
  1995年   110篇
  1994年   95篇
  1993年   89篇
  1992年   98篇
  1991年   60篇
  1990年   56篇
  1989年   45篇
  1988年   45篇
  1987年   43篇
  1986年   35篇
  1985年   35篇
  1984年   51篇
  1983年   31篇
  1982年   24篇
  1981年   27篇
  1980年   26篇
  1979年   17篇
  1978年   18篇
  1977年   19篇
  1976年   12篇
  1975年   16篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Introduction: Modulation of muscle characteristics was attempted through altering muscle stretch during resistance training. We hypothesized that stretch would enhance muscle responses. Methods: Participants trained for 8 weeks, loading the quadriceps in a shortened (SL, 0–50° knee flexion; n = 10) or lengthened (LL, 40–90°; n = 11) position, followed by 4 weeks of detraining. Controls (CON; n = 10) were untrained. Quadriceps strength, vastus lateralis architecture, anatomical cross‐sectional area (aCSA), and serum insulin‐like growth factor‐1 (IGF‐1) were measured at weeks 0, 8, 10, and 12. Results: Increases in fascicle length (29 ± 4% vs. 14 ± 4%), distal aCSA (53 ± 12% vs. 18 ± 8%), strength (26 ± 6% vs. 7 ± 3%), and IGF‐1 (31 ± 6% vs. 7 ± 6%) were greater in LL compared with SL muscles (P < 0.05). No changes occurred in CON. Detraining decrements in strength and aCSA were greater in SL than LL muscles (P < 0.05). Conclusions: Enhanced muscle in vivo (and somewhat IGF‐1) adaptations to resistance training are concurrent with muscle stretch, which warrants its inclusion within training. Muscle Nerve 49 : 108–119, 2014  相似文献   
992.
目的评价音乐节奏训练对精神分裂症患者临床症状的改善及对社会功能恢复的作用。方法将90例慢性精神分裂症患者随机分为研究组及对照组,研究组在原来药物治疗的基础上合并无错化学习模式的音乐节奏训练3个月。对照组在原来药物治疗的基础上合并普通工娱治疗3个月。在治疗前后用阳性和阴性综合征量表(PANSS)、个人和社会功能量表(PSP)评估患者临床症状和社会功能变化。结果研究组PANSS总分、阴性症状、一般精神病理、反应缺乏因子、激活因子及抑郁因子评分均较治疗前下降(P〈0.05),对照组仅PANSS阴性症状评分较治疗前下降(P〈0.05);治疗后研究组PANSS总分、阴性症状、反应缺乏因子评分低于对照组(P〈0.05)。研究组治疗后PSP总分较治疗前显著升高(P〈0.05),治疗后研究组PSP总分高于对照组(P〈0.05)。结论音乐节奏训练对慢性精神分裂症阴性症状及社会功能的改善作用优于普通工娱治疗。  相似文献   
993.
《Clinical neurophysiology》2019,130(11):2124-2131
ObjectiveTo investigate the effects of EEG-based neurofeedback training, in which one can learn to self-regulate one’s own brain activity, on cognitive function in patients with multiple sclerosis (pwMS).MethodsFourteen pwMS performed ten neurofeedback training sessions within 3–4 weeks at home using a tele-rehabilitation system. The aim of the neurofeedback training was to increase voluntarily the sensorimotor rhythm (SMR, 12–15 Hz) in the EEG over central brain areas by receiving visual real-time feedback thereof. Cognitive function was assessed before and after all neurofeedback training sessions using a comprehensive standardized neuropsychological test battery.ResultsHalf of the pwMS (N = 7) showed cognitive improvements in long-term memory and executive functions after neurofeedback training. These patients successfully learned to self-regulate their own brain activity by means of neurofeedback training. The other half of pwMS (N = 7) did neither show any cognitive changes when comparing the pre- and post-assessment nor were they able to modulate their own brain activity in the desired direction during neurofeedback training.ConclusionsData from this interventional study provide first preliminary evidence that successful self-regulation of one’s own brain activity may be associated with cognitive improvements in pwMS.SignificanceThese promising results should stimulate further studies. Neurofeedback might be a promising and alternative tool for future cognitive rehabilitation.  相似文献   
994.
BackgroundJapanese forensic mental health services for patients with psychiatric disorders under the Medical Treatment and Supervision Act was initiated in 2005; however, the prognosis of those patients is not well-known, particularly regarding mortality and suicide. This study aimed to evaluate the all-cause mortality and suicide rate in forensic psychiatric outpatients who had been discharged from forensic psychiatric wards in Japan.MethodsParticipants included 966 patients who had been discharged from forensic psychiatric wards. Data were collected from July 15, 2005 to July 15, 2018 at 29 of the 33 forensic psychiatric wards in Japan. Only the patients who provided written informed consent were included. We and collaborators at each forensic psychiatric ward identified demographic data of participants from the medical records for the inpatient treatment period. The reintegration coordinators, who belonged to the Ministry of Justice, investigated the prognosis of the participants during the outpatient treatment order period. We then connected demographic data and participants’ prognosis for analysis. The crude rates (CRs) and standardized mortality ratios (SMRs) were calculated to analyze all-cause mortality and suicide rates. Univariate analysis was performed to examine the factors associated with all-cause mortality and suicide rates using the Cox proportional hazards ratio model.ResultsThe participants included 3.3 times as many men (n = 739) compared to women (n = 227), and their combined mean age was 47.3 (SD = 12.9). The most common primary psychiatric diagnosis was psychotic disorders (81.3%). The mean follow-up period was 790.2 days (SD = 369.6). The total observation period was 2091.2 person-years. The CR for all-cause death was 812.9 per 100,000 person-years (95% CI [426.5, 1199.4]), while the SMR for all-cause death was 2.2 (95% CI [1.3, 3.5]). The CR for completed suicide was 478.2 per 100,000 person-years (95% CI [181.8, 774.6]). The suicide SMR was 17.9 (95% CI [8.6, 32.9]) overall, 7.7 (95% CI [2.5, 18.0]) for men, and 79.4 (95% CI [25.8, 185.2]) for women. Univariate analysis showed that women had higher completed suicide risk than men (hazard ratio = 3.599, 95% CI [1.041, 12.445]).ConclusionThe all-cause mortality and completed suicide rates were higher in participants than observed in the general population consistent with the results of previous international studies.  相似文献   
995.
慢性精神分裂症住院患者的程式化技能训练   总被引:1,自引:0,他引:1  
目的:探讨程式化技能训练对慢性精神分裂症住院患者的康复效果.方法:将 120 例住院患者随机分成训练组和对照组各 60 例,对训练组进行 8 周的程式化训练,然后全部随访 24 周.采用阳性与阴性症状量表(PANSS),自知力与治疗态度问卷(ITAQ)和 Morningside 康复状态量表(MRSS)进行评估.结果:训练组的 PANSS 总分、阴性症状分和一般精神病理分及 ITAQ 分以及 MPSS 各量表分在训练第 20 周末起,都明显优于对照组.结论:程式化技能训练可使慢性精神分裂症住院患者增进多方面的康复效果.  相似文献   
996.
电刺激疗法治疗脑卒中后吞咽障碍的疗效研究   总被引:6,自引:0,他引:6  
目的探讨电刺激疗法治疗脑卒中所致吞咽障碍的临床疗效。方法75例脑卒中后吞咽障碍患者分为电刺激组,针灸组及康复训练组各25例,前两组在接受常规药物治疗及康复训练基础上分别加用电刺激治疗和针灸。三组治疗前、治疗第1周及第2周以吞咽障碍程度分级评分评定疗效。结果三组治疗后吞咽障碍程度分级评分均明显高于治疗前(P〈0.01);电刺激组评分明显高于针灸组和康复训练组(P〈0.01);电刺激组治疗第1、第2周后有效率明显高于针灸组和康复训练组(P〈0.05)。结论电刺激疗法可明显改善脑卒中所致吞咽障碍,配合针灸,康复训练等综合疗法可加强治疗效果。  相似文献   
997.
Background: People with intellectual disability (ID) have higher risk of mental morbidity and specialised training may be required in their management. We explored the training needs and knowledge as well as perceptions of care of such patients among residents and non-residents working in psychiatry.

Method: The study was conducted as an anonymous survey. Questionnaires were sent to all residents and non-residents at a large psychiatric hospital in Singapore.

Results: Forty-eight out of the 76 questionnaires sent out were returned. All participants responded that postgraduate training was required in the area of ID and mental health and according to the majority, available training was inadequate. Over 90% believed that people with ID were vulnerable to exploitation and they should be under a specialist team.

Conclusion: Efforts should be made to include specialist training in psychiatry of ID in the Singapore psychiatry curriculum to enhance the knowledge and expertise of psychiatrists in this field.  相似文献   

998.
女性性功能失调是指女性在体验性愉悦的能力上具有临床意义的紊乱。本文将简要探讨临床诊疗中常见的三种女性性功能失调,包括女性性高潮障碍、女性性兴趣/唤起障碍及生殖器-盆腔痛/插入障碍的诊断和治疗,为临床工作中相关疾病的识别和诊治提供参考。  相似文献   
999.
1000.
Objective: The study of alliance rupture has become quite prevalent since 1990 and especially in the past 10 years where we have seen a noticeable surge in empirical publications on the subject. This honorary paper attempts to provide a critical review of this literature from the perspective of someone who has contributed to it in his collaborative work on a research program designed to investigate ruptures and to develop intervention and training models to resolve them. Method: This paper is organized into three topics or sections: (1) alliance rupture, (2) rupture resolution, and (3) alliance training; and it addresses definitions, findings, questions, and lessons with regard to each topic. Results/Conclusions: It suggests some clinical conceptualizations (concerning agency and communion as well as mutual recognition), training implications (regarding emotion regulation and deliberate practice), and methodological considerations (promoting pluralism and contextualism), along with future directions.  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