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   447篇
  免费   21篇
  国内免费   4篇
  2023年   2篇
  2022年   2篇
  2021年   1篇
  2020年   3篇
  2019年   9篇
  2018年   4篇
  2017年   3篇
  2016年   5篇
  2015年   3篇
  2014年   6篇
  2013年   9篇
  2012年   4篇
  2011年   16篇
  2010年   8篇
  2009年   15篇
  2008年   14篇
  2007年   13篇
  2006年   9篇
  2005年   11篇
  2004年   8篇
  2003年   3篇
  2002年   2篇
  2001年   4篇
  2000年   3篇
  1999年   2篇
  1997年   4篇
  1995年   4篇
  1993年   3篇
  1991年   1篇
  1990年   1篇
  1985年   29篇
  1984年   34篇
  1983年   32篇
  1982年   21篇
  1981年   36篇
  1980年   25篇
  1979年   26篇
  1978年   21篇
  1977年   19篇
  1976年   17篇
  1975年   14篇
  1974年   14篇
  1973年   12篇
排序方式: 共有472条查询结果,搜索用时 15 毫秒
171.
SF-36量表用于慢性乙型肝炎生命质量测定的效果评价   总被引:1,自引:0,他引:1  
评价SF-36量表在慢性乙型肝炎患者中应用的效果;调查101名慢性乙肝患者,用重测信度、分半信度、内部一致性、结构效度和判别效度等对SF-36量表进行评判;该量表具有良好的分半信度和内部一致性,结构效度和判别效度较好;SF-36量表可用于慢性乙型肝炎患者生命质量评价。  相似文献   
172.
A numerical calculation method based on the angle in a triple junction composed of a random grain boundary is proposed to predict the connectivity and stability of a grain boundary in a B10 copper-nickel alloy. The grain-boundary connectivity and its effect on corrosion resistance are studied combining computer-aided analysis with electrochemical impedance testing. The results show that the prediction of corrosion resistance using a grain-boundary connectivity numerical method is consistent with immersion experimental results. The B10 alloy exhibited the best corrosion resistance after cold rolling with a 9% reduction rate. The relationship between the grain-boundary characteristics and corrosion resistance is well established using the numerical method to quantify the grain-boundary connectivity. A higher connective frequency and a low proportion of grain-boundary angles between 60° and 180° in the triple junction is detrimental to corrosion resistance of the B10 alloy.  相似文献   
173.
目的:探讨大学生防艾宣传者对艾滋病患者的内隐态度。方法:采用自编大学生与艾滋病患者交往意愿调查问卷,通过测量获得对艾滋病患者有较高交往意愿的防艾宣传者100名,并随机抽取其中30名作为实验被试,完成了两组内隐联想测验(IAT)。结果:当艾滋病相关词与普通正性词相联以及非艾滋类乙型传染病与普通负性词相联时,其平均反应时低于艾滋病与一般消极性词相联及非艾滋类乙型传染病与普通正性词相联时的反应时;当艾滋病相关词与正性人际词相联以及非艾滋类乙型传染病与负性人际词相联时,其平均反应时与艾滋病和负性人际词相联及非艾滋类乙型传染病与正性人际词相联时的反应时无统计学意义的差异。结论:大学生防艾宣传者对各类传染病患者的内隐交往意愿处于同一水平,但相对于非艾滋类乙型传染病而言,其对艾滋病患者的消极厌恶水平较低。  相似文献   
174.
175.
176.
It is commonly agreed that when evaluating the validity of an argument involving context-sensitive expressions, the context should be held fixed. In their 2008 essay “Counterfactuals and Context,” Brogaard and Salerno argue further that context should be held fixed when evaluating an argument involving counterfactuals for validity, since, as many will agree, counterfactuals are context-sensitive. In the present paper, it will however be argued that Brogaard and Salerno fail to distinguish between two different roles that context plays in determining the meaning of a given counterfactual. If they were fully aware of the distinction between these two roles played by context, they might propose a contextualist approach to counterfactuals, as has been developed by Ichikawa in his 2011 paper “Quantifiers, Knowledge, and Counterfactuals.”  相似文献   
177.
Adam P. Setmeyer 《Dialog》2010,49(4):306-314
Abstract : This article examines what Catholics can learn from Douglas John Hall, a Protestant, in relationship to consumerism and the North American context. It does this by first, examining the relationship of consumerism to this context; second, viewing various Catholic reflections on consumerism through the lens of Stephen B. Bevans’ models of contextual theology; and third, placing the Catholic reflections in conversation with Hall in order to come to a constructive conclusion.  相似文献   
178.
The aim of this paper is to propose a two-dimensional hybrid logic in order to formalize inferences containing both spatial and temporal propositions. The semantic idea behind the proposal is to name both horizontal and vertical lines in a 2D-plane by two kinds of nominals. This is a generalization of the idea of naming a point in one-dimensional hybrid logic. I give an axiomatization of the proposed two-dimensional hybrid logic and show that it enjoys a general completeness result (called pure completeness) with respect to product Kripke frames. Moreover, in order to capture T×W-frames studied by R.H. Thomason (1984), I introduce the notion of a dependent product frame, which enables us to represent the dependence of space over time. I also give a complete axiomatization of this dependent two-dimensional hybrid logic, and, as a corollary, reveal that a hybridization of T×W-logic enjoys strong completeness.  相似文献   
179.
乙肝病毒(HBV)感染是我国肝硬化和肝癌的主要致病因子,因此抗HBV治疗十分重要.但是,由于对抗HBV的治疗现状不够了解,不少人在盲目追求彻底清除体内的HBV,以至于弄巧成拙,所以,有必要客观地看待慢性乙型肝炎的抗病毒治疗,以求得到最佳的治疗效果.  相似文献   
180.
慢性乙型肝炎治疗的目标是最大限度地长期持续抑制或清除乙肝病毒,减轻肝细胞炎症坏死及其所致的肝纤维化,延缓疾病进展,减少肝硬化、原发性肝细胞癌及其并发症的发生。治疗措施包括核苷类似物抗病毒治疗;干扰素抗病毒治疗;免疫调节治疗;抗炎治疗和抗纤维化治疗,其中抗病毒治疗是关键。  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