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   77篇
  免费   5篇
  国内免费   2篇
  2023年   3篇
  2022年   1篇
  2021年   1篇
  2020年   1篇
  2018年   5篇
  2017年   2篇
  2016年   3篇
  2014年   3篇
  2013年   5篇
  2011年   2篇
  2010年   7篇
  2009年   7篇
  2008年   2篇
  2007年   6篇
  2006年   12篇
  2005年   2篇
  2004年   12篇
  2003年   3篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1981年   1篇
  1977年   1篇
排序方式: 共有84条查询结果,搜索用时 673 毫秒
1.
Two logics L1 and L2 are negatively equivalent if for any set of formulas X and any negated formula ¬, ¬ can be deduced from the set of hypotheses X in L1 if and only if it can be done in L2. This article is devoted to the investigation of negative equivalence relation in the class of extensions of minimal logic.The author acknowledges support by the Alexander von Humboldt-StiftungPresented by Jacek Malinowski  相似文献   
2.
There are approximately one million cases oftype 1 diabetes in the US, and the incidenceis increasing worldwide. Given that two-thirdsof cases present in childhood, it is criticalthat prediction and prevention research involvechildren. In this article, I examine whethercurrent research methodologies conform to theethical guidelines enumerated by the NationalCommission for the Protection of Human Subjectsof Biomedical and Behavioral Research, andadopted into the federal regulations thatprotect research subjects. I then offer twopolicy recommendations to help researchersdesign studies that conform to these ethicalrequirements.  相似文献   
3.
This article examines the responsibilities of researchers who conduct exploratory research to provide a service to vulnerable respondents. The term “service” is used to denote the provision of a tangible benefit in relation to the research question that is apart from the altruistic research benefits. This article explores what this “service” could look like, who might be responsible for providing it, and the challenges associated with such a service. The article argues that not providing a tangible benefit to vulnerable research participants is inconsistent with the principle of social justice that undergirds much of the rationale for conducting health disparities research.  相似文献   
4.
The distinction between minimal self and narrative self has gained ground in recent discussions of selfhood. In this article, this distinction is reassessed by analysing Zahavi and Gallagher’s account of selfhood and supplementing it with Husserl’s concept of person. I argue that Zahavi and Gallagher offer two compatible and complementary notions of self. Nevertheless, the relationship between minimal self and narrative self requires further clarification. Especially the embeddedness of self, the interplay between passivity and activity, and the problems of uniqueness and persistence are better understood with Husserl’s analysis of person and its central concepts of position-taking, habitualities, and overall style. The embeddedness of self is elucidated by outlining how person is related to its environment, to other people, and to its past. This relational notion of self is both passively constituted and actively shaped: person mediates between minimal self characterized by perspectival ownership and narrative self based on authorship.  相似文献   
5.
The author discusses the experience of 'being invaded' that is sometimes communicated by certain severely disturbed patients. The complaint can sometimes be couched in terms of bodily suffering and such patients may state that they have the experience of a 'foreign body' inside. It is suggested that these patients have suffered severe early failure of containment of their projections, while at the same time they have incorporated primitive characteristics of the object that have been powerfully projected into them. An object that invades in this way, it is suggested, experiences a compulsive need to expel unbearable states of mind using others as a repository. The infant incorporates these violent projections as part of his own mental representational system, and normal identifi cation processes are disrupted. There follows impairment of the development of the sense of self. Clinical examples of how the invasive experience manifests itself in the analytic setting and in the transference and countertransference are presented. It is argued that this highly complex form of early subject-object interaction (prior to the differentiation of psyche-soma) is more likely to be found in severely narcissistically disturbed individuals. Some refl ections on the origins of invasive phenomena are given.  相似文献   
6.
卵巢良性肿瘤诊断与治疗的思考   总被引:2,自引:0,他引:2  
卵巢肿瘤位于盆腔深处早期没有症状,为临床诊治造成一定困难。如何在早期鉴别诊断卵巢肿瘤的良恶性?对卵巢肿瘤的处理原则有无规律可循?对治疗卵巢肿瘤引起的急腹症有无新的进展?在微创手术中如何保护正常卵巢组织?如何监测评价卵巢功能?本文将重点进行探讨。  相似文献   
7.
达芬奇手术机器人系统在普通外科的应用   总被引:3,自引:1,他引:2  
20世纪80年代腹腔镜的出现使微创技术的发展取得了长足的进步,在此基础上,手术机器人的研发和应用开启了微创外科新纪元。本文通过达芬奇手术机器人系统在普通外科各类手术中的具体运用,分析了手术机器人对比传统腔镜技术的技术优势,及当前临床应用的瓶颈,并对高新技术的发展进行了点滴思考。  相似文献   
8.
The paper is devoted to the contributions of Helena Rasiowa to the theory of non-classical negation. The main results of Rasiowa in this area concerns–constructive logic with strong (Nelson) negation,–intuitionistic negation and some of its generalizations: minimal negation of Johansson and semi-negation.We discuss also the impact of Rasiowa works on the theory of non-classical negation.A lecture presented at the International Conference Trends in Logic III : A. Mostowski, H. Rasiowa and C. Rauszer in memoriam, Warsaw, Ruciane-Nida September 23-26, 2005.  相似文献   
9.
准确把握微创外科的适应证   总被引:2,自引:0,他引:2  
分析了以腔镜手术为代表的微创外科在疾病治疗中的地位和适应证,指出微创手术不应当只是切口的减小,应该综合降低各种创伤因素;在“后腔镜时代”,要注意发现因腔镜技术而带来的疾病诊疗原则和手术适应证上的新变化,努力从不断发展的新兴科技中从寻找新的技术增长点,以此扩大微创外科的适应证;也要看到微创手术还不能完全取代传统开放手术,不要盲目扩大微创手术的适应证,更不能企望微创手术能完成传统手术不能治疗的疾病。  相似文献   
10.
超声检查具有实时、动态、灵活、方便等优点,在临床上有重要作用。介入性超声是在超声显像的基础上,为进一步满足临床诊断和治疗的需要而发展起来的一门新技术,在微创医学体系中占有非常重要的地位,但只有与其它微创技术联合应用才更有活力和生机。  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