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121.
连续性肾脏替代治疗(continuous renal replacement therapy, CRRT)是近30年来在透析技术基础上蓬勃发展起来的一种新的血液净化技术。CRRT最早应用于重症急性肾衰竭(acute renal failure,ARF)的治疗,随着人类对CRRT认识的不断深化和技术的不断发展,CRRT的...  相似文献   
122.
The purpose of this study was to assess any differences in psychosocial problems among adolescents living with both parents, or with their mother or their father. Any benefits of living with a same-sex parent compared to a parent of the opposite sex, was also analysed. A total of 1,686 adolescents aged 14-15 years participated from 29 schools in Hordaland county, including schools in downtown Bergen and more rural areas. The findings revealed significantly more psychosocial problems among the adolescents living with one parent compared to both parents. Significant differences were also observed between adolescents living in mother custody compared to father custody, indicating more problems among the latter group. Furthermore, girls living with their father had significantly higher levels of psychological symptoms, compared to boys in father custody. Similarly, boys living with their father were involved in more stealing behavior than girls in father custody. However, residence arrangement accounted for only a limited proportion of the variance in the adolescents' psychosocial problems, indicating large within-group variance and overlap between the different custody groups.  相似文献   
123.
精神医学是临床医学的一个分枝,是高度复杂的一门科学,站在哲学的角度反思,信息系统控制科学方法渗透于精神医学的历史发展过程和临床工作的资料收集、诊断、治疗等各个环节,以及精神医学的科研工作中,还启迪着我国精神卫生事业的发展方向。  相似文献   
124.
The life and times of PSI   总被引:1,自引:0,他引:1  
This paper describes the essential features of the personalized system of instruction (PSI). Results from outcome research examining the effectiveness of PSI-based courses relative to traditional methods provide unequivocal support for the superiority of PSI. Parametric studies, or component analyses, show that the mastery requirement, immediate performance feedback, and review units are the key features underlying high quality student performances in PSI courses. The use of student proctors as peer-tutors, optional lectures, and selfpacing do not, in and of themselves, appear to be vital to student success in PSI courses. Despite its superiority, PSI has not supplanted traditional methods as the dominant pedagogical system in higher education. Difficulties inherent in overcoming the inertia of the lecture within our established instructional system, the implications of PSI for that system, and the Zeitgeist that permeates educational reform are the major obstacles to widespread adoption of PSI.  相似文献   
125.
Six pigeons were exposed to concurrent variable-interval schedules in which the programmed reinforcer ratios changed from session to session according to a pseudorandom binary sequence. This procedure corresponded to the stochastic identification paradigm (“white-noise experiment”) of systems theory and enabled the relation between log response ratios in the current session and log reinforcer ratios in all previous sessions to be determined. Such dynamic relations are called linear transfer functions. Both nonparametric and parametric representations of these, in the form of “impulse-response functions,” were determined for each bird. The session-to-session response ratios resulting from the session-to-session pseudorandom binary variations in reinforcer ratios were well predicted by the impulse-response functions identified for each pigeon. The impulse-response functions were well fitted by a second-order dynamic model involving only two parameters: a time constant and a gain. The mean time constant was 0.67 sessions, implying that the effects of abrupt changes in log reinforcer ratios should be 96% complete within about five sessions. The mean gain was 0.53, which was surprisingly low inasmuch as it should equal the sensitivity to reinforcement ratio observed under steady-state conditions. The same six pigeons were subjected to a similar experiment 10 months following the first. Despite individual differences in impulse-response functions between birds within each experiment, the impulse-response functions determined from the two experiments were essentially the same.  相似文献   
126.
综合性大学开设长学制高等医学教育的初步研究   总被引:21,自引:1,他引:21  
我国现有的医学教育学制偏短,不利于培养高质量医学人才。综合性大学有着许多办学优势,有利于开设长学制医学教育,因此,要发挥综合性大学的优势,实行多通道办学模式,学分制和弹性学制,强化公共基础教育和人文素质教育,改善办学条件,提高管理水平,努力培养能参与国际竞争的高层次医学人才。  相似文献   
127.
Value transmission is a fundamental task of schools. However, the question arises as to how far prevailing political and social conditions shape the functioning of a country or a region’s school system. In other words: what effect do they have on the choice of values to be transmitted at schools? Are there any fundamental social values that are shared by different cultures at different times? Are there values that exist independently of social and political systems? These questions have a special relevance in Eastern and Central European countries like Hungary where political and social changes in the twentieth century had a crucial effect on the set of values that were transmitted by the school system. The aim of this study is to describe how the value transmitting role of the Hungarian school system has changed as a consequence of political transformations in recent decades.  相似文献   
128.
"庆历易学"指庆历前后学坛易学,以往学界对这个易学派别未加注意,实际上该学派在易学史上占有重要的地位,它开宋易系统之先河.首先,"庆历易学"开宋学重<易>风气之先.其次,"庆历易学"开宋易系统解<易>风气之先.最后,"庆历易学"开纯以儒家义理解<易>风气之先."庆历易学"重<易>、解<易>风气的实质是学术范式的转换."庆历易学"是以范仲淹为核心的学者集团共同作用的结果.  相似文献   
129.
药物成瘾是一类精神及行为障碍, 涉及到中枢神经系统的病变。毒蕈碱受体(Muscarinic receptor, M受体)属于胆碱能受体, 分5种亚型。行为学研究表明, 干预M受体能有效影响药物成瘾行为, 但其神经机制还亟待探索。阿片类药物与精神活性药物均能激活中枢多巴胺系统, 而M受体与多巴胺系统在多个脑区产生了交互作用。其中激动M2及M4受体抑制了多巴胺系统功能, 而激动M5受体增强了多巴胺系统功能, 与干预M2、M4、M5受体对药物成瘾行为的影响相对应。以上证据提示, 干预M受体可能通过影响多巴胺系统对药物成瘾起作用。  相似文献   
130.
在当今国际世界,生命伦理学已经发展成一种国际性的“社会运动”,成为学术界和公众关注的热点领域。在欧美国家健全和完善现代医疗保健制度过程中,“生命伦理委员会”起到至关重要的作用,它不仅促使人们从伦理学角度探索“我/我们应当如何决定和行为”的问题,也推动社会从制度建构和文化塑造层面回答“政府应当如何行为”、“如何增进公民的生命伦理意识”等问题,并从哲学领域深入探索如何应对生命伦理学理论与实践中的复杂问题与困境,论证相关伦理选择及其实践的合理性。20世纪60年代以来,欧美社会生命伦理学在机构建设、咨询服务和思维方式等方面的经验可以为中国生命伦理学学科发展及生命伦理委员会建设提供有益的参考。  相似文献   
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