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   916篇
  免费   75篇
  国内免费   21篇
耳鼻咽喉   14篇
儿科学   4篇
妇产科学   5篇
基础医学   153篇
口腔科学   30篇
临床医学   240篇
内科学   47篇
皮肤病学   5篇
神经病学   143篇
特种医学   28篇
外科学   58篇
综合类   92篇
预防医学   113篇
眼科学   4篇
药学   19篇
  3篇
中国医学   17篇
肿瘤学   37篇
  2024年   8篇
  2023年   32篇
  2022年   34篇
  2021年   27篇
  2020年   51篇
  2019年   42篇
  2018年   31篇
  2017年   37篇
  2016年   26篇
  2015年   33篇
  2014年   64篇
  2013年   74篇
  2012年   54篇
  2011年   36篇
  2010年   34篇
  2009年   38篇
  2008年   40篇
  2007年   52篇
  2006年   37篇
  2005年   26篇
  2004年   30篇
  2003年   23篇
  2002年   23篇
  2001年   30篇
  2000年   18篇
  1999年   9篇
  1998年   5篇
  1997年   11篇
  1996年   10篇
  1995年   7篇
  1994年   5篇
  1993年   8篇
  1992年   4篇
  1991年   3篇
  1990年   5篇
  1989年   4篇
  1988年   2篇
  1987年   6篇
  1986年   3篇
  1985年   9篇
  1984年   2篇
  1983年   1篇
  1982年   5篇
  1981年   3篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1976年   3篇
  1974年   1篇
  1970年   2篇
排序方式: 共有1012条查询结果,搜索用时 10 毫秒
61.
AIM: This paper reports a study to investigate coping strategies and sense of coherence in relation to gender, the extent of care, caregiving activities and health-related quality of life in a population-based sample of caregivers aged 75 and over. BACKGROUND: Caring for another person can be stressful both emotionally, and caregiver burden may affect quality of life in a negative way for the carer. Caregivers' experience of burden may depend on for example, the behaviour of the person cared for, their own health and their sense of coherence. Older people take a great part of caregiving responsibility and thus understanding of their strain and coping is required. METHODS: A postal survey was carried out in 2001 with 171 informal caregivers, aged 75 or older. The response rate was 47%. The questionnaire included the Short-Form 12, Carer's Assessment of Managing Index, and Sense of Coherence instrument. RESULTS: Almost 70% of caregivers provided help every day. Higher health-related quality of life was predicted by using self-sustaining coping strategies and by high sense of coherence. Poor economic situation and demanding social and practical support predicted low scores. CONCLUSION: These findings could help identify those at risk of low quality of life due to caregiving, dysfunctional coping or lack of information about care. Early intervention, including education about alternative coping strategies and practical information, might allow caregivers better possibilities to continue caring with less negative effects on their lives.  相似文献   
62.
Sexuality is a vital component of the self. Yet, there is a dearth of research literature that explores the sexuality of people with schizophrenia. The purpose of this study was to understand how people with schizophrenia experience and perceive their sexuality. Using grounded theory methodology, the study recruited five men and five women with schizophrenia-spectrum disorders who lived independently in the community. These participants were interviewed regarding their subjective sense of their own sexuality. The findings suggested that people with schizophrenia integrate sexuality into their sense of self. Although the illness affected various aspects of their sexual lives, many participants were able to develop and maintain meaningful intimate relationships, as well as construct their own definitions and personal meanings of sexuality. Furthermore, participants described dealing with the impact of schizophrenia in the context of managing their illness. These findings have implications for clinical practice and recovery of people with schizophrenia.  相似文献   
63.
Objectives: The links between religiousness and coping are complex, and previous research indicates that they may be mediated by coherence-related structures. The aim of this study was to examine whether sense of coherence (SOC) is a mediator in the relationships between the religious meaning system and coping styles in Polish older adults.

Method: In this study, 212 older adults (118 women and 94 men) participated. Their ages ranged from 65 to 79 years (M = 71.04; SD = 2.26). The group was a representative sample of Polish older adults in terms of social status, gender, and age. They completed three measures: the Religious Meaning System Questionnaire, the Sense of Coherence Scale (SOC-29), and the Coping Inventory for Stressful Situations.

Results: Findings showed that the religious meaning system had significant relationships with SOC and three coping styles: emotion-oriented coping, avoidance-oriented coping, and social diversion. In addition, SOC mediated the relations between the religious meaning system and three coping styles: the emotion-oriented, avoidance-oriented, and social diversion.

Conclusions: The positive associations between meaning-oriented religiousness, SOC, and coping styles imply that their underlying mechanisms are based on the structures of significance and comprehension. The character of mediational relations (i.e. mediator vs. suppressor) depended on the emotional and social coping strategies used by older adults.  相似文献   

64.
Becoming parents of a child with Down's syndrome (DS) challenges the adjustment ability in parenthood. Individuals with higher sense of coherence (SOC) are supposed to manage stressors better than those with lower SOC. The aims of this study were to investigate parental self-perceived stress, SOC, frequency of gainful employment and amount of time spent on child care in Swedish DS parents (165 parents; 86 mothers, 79 fathers) and to compare those with control parents of healthy children (169 parents; 87 mothers, 82 fathers). The mean age of the children was 4.7 years. Parents responded to questionnaires separately including Hymovich's Parent Perception Inventory as stress measurement and Antonovsky's short version of the Orientation to Life. No differences concerning total employment rate were observed, but the DS mothers were more often employed part-time than control mothers. The DS parents did not spend more time on child care than the control parents and they did not differ in mean SOC score, but the DS parents perceived greater stress. The differences in stress, particularly between the DS and control mothers, were related to time-demanding areas. Parents with high SOC scores experienced significantly less self-perceived stress.  相似文献   
65.
The Program for Psychosocial Care and Comprehensive Health for Victims serves, on a yearly basis, an average of 25,000 users in northern Colombia alone. The program is implemented by multidisciplinary teams comprised of psychologists, social workers, and community facilitators, who step in at the individual, family, and community levels. An attempt has been made to determine the effect generated by the timeframe through which professionals have been engaged with the program-filling positions of centrality and betweenness within the networks of information exchange and user referral, including the potential mediating effect from the structure of the egocentric network of implementers in the two aforementioned networks and the moderating effect of the sense of belonging to a team of professionals. Both centrality and betweenness are positional measures describing the location actors occupied within the network structure. Centrality reflects the nominations made and receipt by an actor in a network and is considered an individual indicator of prominence and power. Betweenness shows the times that an actor act as a bridge among two actors in a network and it is considered an indicator of strategic positioning in social networks. An egocentric network is the local structure of relationships that each implementer maintains with his or her direct contacts. In this study, 112 active implementers were included, mostly women (n = 97, 88.2%), who had been working on the program for 16.9 months on average (SD = 14.7). Through conditional process analysis, it has been shown that the time that the implementers have been working on the program and the sense of belonging to the task team are relevant factors that interact with each other toward explaining the level of centrality and betweenness of professionals in the information exchange and user referral networks.  相似文献   
66.
Over the past decade, the potential harms regarding young people's use of technology have attracted mounting political, media and research attention worldwide. One practice engaged in by many young people is that of “sexting” and the sharing of partially, or complete nude images (“selfies”). Such images are not always retained within private spaces and are prone to be shared, with significant psychosocial consequences for young people involved. A significant risk is the hidden nature of some online interactions, with potential for grooming and child sexual exploitation. As key professionals working with young people, public health nurses have potential to educate and explore the risks with them. Yet to date, to our knowledge there has been no research in relation to public health nurses’ understandings of the practices involved or their potential harms. A qualitative study was undertaken drawing theoretically on the common‐sense model (CSM) to frame the analysis. Eighteen semi‐structured interviews were conducted with public health nurses in a region of England in 2016. Data were analysed through thematic analysis, and mapped to the five domains of CSM. Public health nurses’ understandings of young people's sexting practices were shaped largely by media reports, rather than scientific, disciplinary knowledge. Sexting did not resonate with many public health nurses’ own experiences of being a young person and was therefore difficult to understand. All were able to express an opinion about the causes and consequences of sexting and we present these as a “perceived hierarchy of risk”. All public health nurses acknowledged the importance of their role in dealing with harm reduction associated with sexting among young people, but they need education and support to do this effectively and confidently. Findings can be transferred carefully to many contexts and countries because sexting is a practice among young people that transcends geographical boundaries.  相似文献   
67.
68.
文章运用语言学知识和中医学原理,分析了唐代以前古医籍中“颞颥”的用法,认为“颞颥”的部位义指颞肌所在部位,即头侧、眼眶外后方的体表处。范围从额侧眼眶骨外后方、耳上方直到耳后。  相似文献   
69.
This commentary on ideas about neural mechanisms underlying pain is aimed at providing perspective for a reader who does not work in the field of mammalian somatic sensation. It is not a comprehensive review of the literature. The organization is historical to chronicle the evolution of ideas. The aim is to call attention to source of concepts and how various ideas have fared over time. One difficulty in relating concepts about pain is that the term is used to refer to human and animal reactions ranging from protective spinal reflexes to complex affective behaviors. As a result, the spectrum of "pain"-related neural organization extends to operation of multiple neuronal arrangements. Thinking about pain has shadowed progress in understanding biological mechanisms, in particular the manner of function of nervous systems. This essay concentrates on the evolution of information and concepts from the early 19th century to the present. Topics include the assumptions underlying currently active theories about pain mechanisms. At the end, brief consideration is given to present-day issues, e.g., chronic pain, central pain, and the view of pain as an emotion rather than a sensation. The conceptual progression shows that current controversies have old roots and that failed percepts often resurface after seemingly having been put to rest by argument and evidence.  相似文献   
70.
4‐Alkyloxy‐3,5‐bis(hydroxymethyl)phenylacetylenes with eight types of alkyl groups were synthesized and polymerized with a chiral catalytic system. We found that the length of the alkyl groups played a very important role in achieving helix‐sense‐selective polymerization. Five helix‐sense‐selective polymerizations were achieved resulting in polymers with alkyl groups whose chain length was longer than six. We think that the longer ‐ chain alkyl groups prevented the polymers from becoming insoluble by forming intermolecular hydrogen bonds between the hydroxyl groups, and stabilized their one‐handed helical structure by promoting the formation of intramolecular hydrogen bonds.

  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