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   215731篇
  免费   5640篇
  国内免费   580篇
耳鼻咽喉   2951篇
儿科学   8237篇
妇产科学   6444篇
基础医学   27887篇
口腔科学   6222篇
临床医学   17432篇
内科学   39280篇
皮肤病学   4971篇
神经病学   14022篇
特种医学   11057篇
外国民族医学   97篇
外科学   31148篇
综合类   1232篇
一般理论   39篇
预防医学   19103篇
眼科学   4609篇
药学   14817篇
  3篇
中国医学   179篇
肿瘤学   12221篇
  2021年   1292篇
  2020年   877篇
  2019年   1050篇
  2018年   4511篇
  2017年   4614篇
  2016年   3974篇
  2015年   5670篇
  2014年   5388篇
  2013年   4707篇
  2012年   11745篇
  2011年   6671篇
  2010年   3194篇
  2009年   4690篇
  2008年   3333篇
  2007年   4004篇
  2006年   4157篇
  2005年   12116篇
  2004年   13451篇
  2003年   8885篇
  2002年   4031篇
  2001年   4412篇
  2000年   1749篇
  1999年   5887篇
  1992年   6887篇
  1991年   7124篇
  1990年   7365篇
  1989年   6962篇
  1988年   6499篇
  1987年   6253篇
  1986年   5970篇
  1985年   5253篇
  1984年   3620篇
  1983年   2923篇
  1982年   1027篇
  1980年   857篇
  1979年   3838篇
  1978年   2373篇
  1977年   1790篇
  1976年   1569篇
  1975年   2484篇
  1974年   3119篇
  1973年   2750篇
  1972年   2765篇
  1971年   2747篇
  1970年   2558篇
  1969年   2468篇
  1968年   2240篇
  1967年   2168篇
  1966年   1900篇
  1965年   1132篇
排序方式: 共有10000条查询结果,搜索用时 593 毫秒
1.
2.
3.
4.
5.
6.
In 1963, Goffman argued that forming a group based on shared stigma may provide benefits. However, there is no empirical research on whether perception that a separate, unique, coherent group exists (i.e., group entitativity) influences coping, such as educating others or secrecy, for the stigmatized individual or his or her spouse. Further, little is known about how spouses influence each other in terms of promoting the education of others about a stigmatizing condition, especially when it comes to the role of believing that stigma-based groups, to which they may both belong, exist. This study provides a step toward bridging this gap in the research by applying the label management model in efforts to understand coping for couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). This study included 50 married couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). We found that group entitativity related to those with AATD counterbalanced the influence of genetic stigma on spouses’ intentions to keep the diagnosis secret or to educate others about it. Intrapersonal and interpersonal influences appeared among spouses. Attention is needed on the power of creating groups for stigmatized persons and their relatives. Indeed, people live within a dynamic world of group entities, and multiple social identities including spousal and familial. While attention has been paid to the diffusion of stigmas to loved ones, less has been paid to the uplift of group entities for them.  相似文献   
7.
8.
9.
Attachment is a behavioral and physiological system, which enables individual’s dynamic adaptation to its environment. Attachment develops in close interaction between an infant and his/her mother, plays an important role in the development of the infant’s brain, and influences the quality of interpersonal relationships throughout life.Security of attachment is believed to influence individual response to stress, exposing insecurely organized individuals to deregulated autonomic nervous system and exaggerated hypothalamic-pituitary-adrenal activity, which, in turn, produces increased and prolonged exposure to stress-hormones. Such stress responses may have considerable implications for the development of diverse health-risk conditions, such as insulin resistance and hyperlipidemia, shown by numerous studies.Although the mechanisms are not yet fully understood, there is compelling evidence highlighting the role of psychological stress in the development of type 1 diabetes (T1D). One of the possible contributing factors for the development of T1D may be the influence of attachment security on individual stress reactivity. Thus, the suggestion is that insecurely attached individuals are more prone to experience increased and prolonged influence of stress hormones and other mechanisms causing pancreatic beta-cell destruction.The present paper opens with a short overview of the field of attachment in children, the principal attachment classifications and their historic development, describes the influence of attachment security on individual stress-reactivity and the role of the latter in the development of T1D. Following is a review of recent literature on the attachment in patients with T1D with a conclusion of a proposed role of attachment organization in the etiology of T1D.  相似文献   
10.
Background. Haemophagocytic lymphohistiocytosis (HLH) is a rare clinical syndrome characterized by fever, hepatosplenomegaly, cytopenia, and progressive multiple-organ failure. HLH in adults is often secondary to autoimmune diseases, cancer, or infections in contrast to familial HLH. Treatment of secondary HLH is directed against the triggering disease in addition to immunosuppressive therapy, the latter commonly according to the HLH-2004 protocol.Methods. We conducted a retrospective study to identify triggering diseases, disease-specific and immunosuppressive therapy administered, and prognosis in adult patients with secondary HLH. Patient data were collected from October 2010 to January 2015.Results. Ten adult patients with secondary HLH were identified. Seven were men, and the median age at diagnosis was 62 years. Five cases were triggered by malignant disease and five by infection. The median patient fulfilled five of the eight HLH-2004 diagnostic criteria. All patients fulfilled the criteria fever, cytopenia, and ferritin >500 µg/L. Median time from hospital admission to HLH diagnosis was 20 days. Four patients received immunosuppressive therapy according to the HLH-2004 protocol. The prognosis was dismal, especially for the patients with malignancy-associated HLH, of whom all died.Conclusion. HLH should be suspected in patients who present with fever, cytopenia, and ferritin >500 µg/L. Secondary HLH has a dismal prognosis. None of the patients with HLH triggered by malignancy survived. Achieving remission of the triggering disease seems to be important for a favourable outcome as, in all surviving patients, the haemophagocytic syndrome resolved after remission of the underlying infection.  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