首页 | 官方网站   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   15189篇
  免费   1639篇
  国内免费   360篇
医药卫生   17188篇
  2024年   34篇
  2023年   268篇
  2022年   359篇
  2021年   579篇
  2020年   687篇
  2019年   644篇
  2018年   579篇
  2017年   618篇
  2016年   579篇
  2015年   670篇
  2014年   969篇
  2013年   1481篇
  2012年   849篇
  2011年   892篇
  2010年   715篇
  2009年   772篇
  2008年   774篇
  2007年   803篇
  2006年   663篇
  2005年   606篇
  2004年   530篇
  2003年   480篇
  2002年   393篇
  2001年   329篇
  2000年   250篇
  1999年   215篇
  1998年   198篇
  1997年   171篇
  1996年   139篇
  1995年   145篇
  1994年   124篇
  1993年   104篇
  1992年   91篇
  1991年   97篇
  1990年   69篇
  1989年   48篇
  1988年   57篇
  1987年   40篇
  1986年   31篇
  1985年   22篇
  1984年   17篇
  1983年   17篇
  1982年   13篇
  1981年   13篇
  1980年   11篇
  1979年   7篇
  1978年   10篇
  1976年   6篇
  1975年   7篇
  1974年   4篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
71.
Summary When a baby is born with a visible disfigurement, then parents need to adjust to the loss of the anticipated 'perfect' child and thus accept their baby. The impact of the birth on the parents is described in the context of a measure which identifies areas of potential difficulty. The two groups studied were parents of children with cleft palates and parents of children with congenital hand deficit. A wide range of adjustment was found. There was no significant difference between the two groups in terms of their overall adjustment, but there were individual differences in adjustment which did not relate to the severity or type of anomaly. The only significant variable found to relate to parental adjustment was perceived family support.  相似文献   
72.
本文对14例HBV-DNA阳性患儿的家庭成员23人进行血清学检测,并收集22例正常人血清为对照组。23例家庭成员中HBV-DNA阳性率为34.8%(8/23),明显高于对照组4.5%(1/22),P<0.01。HBV-DNA阳性率在患儿的双亲为40%(4/10),而在其祖父母辈为33.33%(3/9),二者无显著差异(P>0.05)。提示乙肝病毒感染的家庭聚集性存在双亲或祖父母辈与患儿间的易感性相似。  相似文献   
73.
Self-directed learning is a natural way for adults to learn. Vocational training for general practice is a preparation for unsupervised clinical work that will be supported, in the main, by continuing medical education. This study uses the Self-Directed Learning Readiness Scale to investigate factors influencing readiness for such learning among a sample of general practice trainees. Three principal factors emerged from analysis: enjoyment and enthusiasm for learning; a positive self-concept as a learner and a factor suggesting the possibility of a 'reproducing' orientation to learning. These factors may reflect approaches to learning in general rather than these adopted for professional learning, but offer helpful pointers for the development of both vocational training and of continuing medical education.  相似文献   
74.
青少年精神分裂症患者家庭因素的研究   总被引:2,自引:0,他引:2  
目的:探讨青少年精神分裂症患者的发病和家庭因素的相关性.方法:采用父母养育方式评价量表(EMBU)及家庭环境量表中文版(FES-CV)对60名青少年精神分裂症患者进行测评并与60名健康青少年进行对照及相关分析.结果:青少年精神分裂症患者父母养育方式与正常组对照显示:其父亲惩罚严厉、拒绝否认因子分显著高于对照组,情感温暖、理解因子分显著低于对照组(P<0.05或P<0.01);其母亲过分干涉过度保护、偏爱被试因子分显著高于对照组;母亲的情感温暖理解、过度保护、偏爱被试因子分高于父亲(P<0.05或P<0.01).家庭环境的亲密度、情感表达、文化性、娱乐性的因子分低于对照组,矛盾性和控制性均高于对照组(P<0.05或P<0.01).相关分析显示:父亲过度保护与母亲拒绝否认,及母亲过度保护与父亲拒绝否认因子之间呈负相关(r≥0.8);父亲与母亲EMBU相同因子得分具有相关关系(r≥0.6).结论:不良的家庭环境和父母养育方式对青少年精神分裂症的发病起一定作用,具有相关性.  相似文献   
75.
<正>This is a review of current situation of induced abortion and post abortion family planning service in China. Induced abortion is an important issue in reproductive health. This article reviewed the distribution of induced abortion in various time, areas, and population in China, and explored the character, reason, and harm to reproductive health of induced abortion. Furthermore, this article introduces the concept of Quality of Care Program in Family Planning, and discusses how important and necessary it is to introduce Quality of Care Program in Family Planning to China.  相似文献   
76.
Abstract   This paper explores the integral relationship between philosophy and nursing practice. The discussion begins by suggesting that philosophy is more than a set of abstract ideas or an intellectual activity; that it is a way of living and being in practice. The author contends that philosophical inquiry can improve the adequacy and relevance of family and nursing theories by promoting the examination and expansion of those theories in light of the experiences and intuitions of nurses. Offering a personal example the author exemplifies how philosophical activity can directly and experientially enhance everyday nursing practice.  相似文献   
77.
78.
As patterns of family formation change, it is important to know how children's lives are affected by their parents' marital and socioeconomic circumstances. Using data from the 1993 Kenya Demographic and Health Survey, this study shows that children of never married and formerly married mothers have significantly higher probabilities of polio dropout and acute undernutrition than those of monogamously married mothers. The number of male household members of working age greatly enhances the chances of full immunization and the nutritional status of children whose mothers were previously married. For children of never married mothers, the benefits of residing with males of working age are largely a function of ethnicity. The results also show that, although children are not disadvantaged nutritionally when their fathers have more than one wife, polygyny is associated with a higher probability of polio dropout and lower probability of full immunization than monogamy. Higher socioeconomic status is associated with a greater probability of full immunization and a lower probability of malnutrition but socioeconomic factors do not explain the effects of mothers' marital status. The findings underscore the complex realities of family interaction and the importance of the broader social context in accounting for variations in child welfare across diverse marital situations.  相似文献   
79.
Abstract: This article integrates theory and research related to boundary ambiguity in parents of children with a chronic health condition. We propose that boundary ambiguity is a risk factor for psychological distress in these parents. Clinical applications and a case example highlight how boundary ambiguity can be assessed and managed in clinical settings by professionals working with parents with chronically ill children. Questions are provided for assessing boundary ambiguity in clinical and research settings, and implications for research are discussed.  相似文献   
80.
Forty suicide-attempt patients who were consecutively admitted to an intensive-care unit, their significant others and treatment personnel were investigated by semistructured interviews. The patients were divided into neurosis (n = 14), abuse (n = 19) and psychosis (n = 7) groups. Twenty-one of the patients (52%) had lost contact with one or both parents before the age of 18, in 25% of cases owing to death and in 27% because of the parents' divorce or separation. Parents and/or siblings of 19 patients (47%) had shown suicidal behaviour in the form of attempted suicide and/or suicide. Differences between the groups were not significant. Alcohol abuse in the parental home was overrepresented in the abuse group compared with the other groups. The role of identification with the dead and suicidal parent in prompting suicidal actions in adulthood is discussed, as well as that of the impeded evolution of stable external object relations owing to parental losses.  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-23

京公网安备 11010802026262号