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   3916篇
  免费   233篇
  国内免费   38篇
耳鼻咽喉   19篇
儿科学   213篇
妇产科学   98篇
基础医学   470篇
口腔科学   94篇
临床医学   471篇
内科学   308篇
皮肤病学   21篇
神经病学   626篇
特种医学   54篇
外科学   270篇
综合类   232篇
一般理论   1篇
预防医学   773篇
眼科学   25篇
药学   208篇
中国医学   49篇
肿瘤学   255篇
  2024年   4篇
  2023年   55篇
  2022年   84篇
  2021年   134篇
  2020年   135篇
  2019年   160篇
  2018年   157篇
  2017年   149篇
  2016年   125篇
  2015年   118篇
  2014年   231篇
  2013年   396篇
  2012年   194篇
  2011年   220篇
  2010年   178篇
  2009年   185篇
  2008年   204篇
  2007年   215篇
  2006年   149篇
  2005年   122篇
  2004年   114篇
  2003年   93篇
  2002年   93篇
  2001年   76篇
  2000年   65篇
  1999年   41篇
  1998年   52篇
  1997年   62篇
  1996年   43篇
  1995年   29篇
  1994年   32篇
  1993年   31篇
  1992年   37篇
  1991年   24篇
  1990年   30篇
  1989年   23篇
  1988年   18篇
  1987年   5篇
  1986年   17篇
  1985年   20篇
  1984年   14篇
  1983年   10篇
  1982年   8篇
  1981年   8篇
  1980年   8篇
  1979年   5篇
  1978年   4篇
  1977年   3篇
  1976年   3篇
  1974年   3篇
排序方式: 共有4187条查询结果,搜索用时 31 毫秒
41.
Psychosocial adjustment to a complex and disabling long-term condition like Parkinson´s disease is a complex, dynamic, cyclical and interactive process. Family caregivers, face multiple challenges that require a significant effort in terms of psychosocial adjustment, which must be considered by healthcare professionals in order to provide a holistic care. The patients’ self-report version of the Psychosocial Adjustment to Illness Scale (PAIS-SR), which has been validated in Spain for use in Parkinson's disease, is designed to evaluate the psychosocial adjustment of patients. Our purpose was to validate the Spanish PAIS-SR version for caregivers of patients with Parkinson's disease. An open, national cross-sectional study with one point-in-time evaluation and retest was carried out in 450 family caregivers of patients with Parkinson's disease. Data were collected in Spain from April 2016 to September 2017. The psychometric analysis performed showed that the Spanish version of the PAIS-SR for caregivers presents adequate indicators of reliability, internal and external validity, and is structured according to the seven-domain model proposed by the author of the instrument.  相似文献   
42.
Evaluated emotional distress, coping style, and marital adjustmentin 84 parents (42 couples) of children with cancer 2 monthsafter diagnosis and again about 20 months after diagnosis. Asexpected, mothers' mean state anxiety and trait anxiety scoresdecreased to near normal levels over time. Fathers' scores werelower initially and did not change. Neither mothers' nor fathers'mean marital adjustment scores changed over time. Marital adjustmentat treatment follow-up was predicted by depression and the spouse'smarital satisfaction in mothers, and depression, child healthstatus, and spouse's marital satisfaction in fathers. In contrastto findings obtained 2 months after diagnosis, coping stylewas not related to marital adjustment at follow-up. Resultsare discussed in terms of possible gender differences in therole of social support in marital adjustment and the stabilityversus situational specificity of coping styles.  相似文献   
43.
This study examined the association between positive and negative aspects of spouse responses and psychological adjustment among 15S individuals with cancer. Two contextual variables, gender and disease-related functional impairment, were taken into account when examining the association between spouse responses and patient psychological distress and well-being. Results indicated that negative aspects of close relationships played a comparatively stronger role than positive aspects in their associations with both psychological distress and well-being. For negative spouse responses, patient gender did not moderate the effects of these responses upon psychological outcomes. For positive aspects of spouse support, both gender and functional disability moderated the association between spouse support and psychological outcomes. These findings are integrated with the general literature on positive and negative aspects of close relationships. Implications for clinical interventions are also discussed.  相似文献   
44.
The forceful and macho look of a prototypical man may not be unduly appealing to others whom he meets. This forceful look might not even appeal to the individual himself. In order to soften this appearance, a series of operative procedures has been devised for use on the craniofacial skeleton. These surgical steps can be done in a single operation or as a series of multiple operative procedures. Moreover, the needs of some patients may require that only special segments of these procedures be performed. This article presents these operative procedures and describes the feasibility with which they can be performed. Complications and unfavorable outcomes, when they occur, are usually related to unrealistic expectations on the part of the patient. The surgical steps routinely performed are those that contour the forehead, orbits, malar eminence, cheeks, chin, angle of the mandible, and larynx. Three categories of patients are described: the female with a male face; the male with a forceful look; and the patient requesting a gender identity change. The psychosocial, psychological, and behavioral problems leading to the decision for surgery will be the basis of final patient selection.Presented at the 9th Congress of the International Society of Aesthetic Plastic Surgery, New York City, October 1987  相似文献   
45.
Essentials of psychotherapeutic intervention for cancer patients   总被引:1,自引:0,他引:1  
Psychosocial treatments, including group, individual and family psychotherapies, are of proven efficacy, and deserve inclusion as standard components of biomedical treatment for cancer patients. Anxiety and depression are very common (and treatable) problems among cancer patients, most of whom can benefit from intervention. Psychotherapy, both group and individual, employs three fundamental approaches: emotional expression, social support, and cognitive symptom-management skills. Psychotherapy has been shown to be effective in improving quality of life. Results of studies of various psychotherapies include reduction in depression, anxiety, and pain, and improved coping skills, and, in some cases, there is evidence of extended survival times.Presented at the Symposium Psychotherapeutic Interventions in Cancer Patients, Flims, Switzerland, 12–14 January 1995  相似文献   
46.
目的 探讨飞行员心理防御机制与心理社会因素的相关性。方法 对312 例飞行员进行防御方式问卷,卡特尔16 种个性因素问卷,症状自评量表,紧张性生活事件量表,社会支持评定量表测评。结果 揭示飞行员不成熟防御机制与心理健康水平,生活事件,社会支持显著相关,个性因素明显的影响不成熟防御机制;患病飞行员采用不成熟防御机制明显的多。结论 在飞行员心理卫生保健工作中,揭示并修正飞行员不成熟防御机制是十分必要的。  相似文献   
47.
Jilek-Aall L 《Epilepsia》1999,40(3):382-386
Epilepsy when manifested as grand mal seizure provokes strong and ambivalent feelings in those witnessing it. Terms such as morbus sacer, denoting both a sacred and demoniac condition, or folk names indicating divine punishment, have expressed these feelings in European societies from antiquity to the Middle Ages and beyond. An atmosphere of fear, shame and mysticism surrounds epilepsy even in our days in many non-Western and also in Western cultures. In the course of work and studies in Tanzania, where I organized the Mahenge Clinic for Epilepsy in 1960, and in other parts of Africa, I found that epilepsy is conceived of as an "African' affliction, a manifestation of supernatural forces that makes it difficult to reach epilepsy sufferers with modern medical treatment. Epilepsy is traditionally looked on as caused by ancestral spirits or attributed to possession by evil spirits. It is also thought to be due to witchcraft, and "poisoning," and often taken to be contagious. Epilepsy may, under Christian missionary teaching, have come to be considered as due to demoniac possession or divine punishment for sins, in accordance with biblical examples. In many parts of Africa, syncretic amalgamation of indigenous traditions with Judeo-Christian doctrines influenced popular attitudes toward epilepsy. We demonstrated that persistent efforts at health education in the context of organized treatment of epilepsy can result in a change of popular notions about epilepsy and consequently lead to significant improvement in the quality of life of epilepsy sufferers.  相似文献   
48.
After more than 25 years of research on altitude training (AT) there is no consensus regarding either the training programme at altitude or the effects of AT on performance at sea level. Based on a review of the research work on AT, we investigated combined base training and interval training at moderate altitude and compared immediate and delayed effects on sea level performance with those following similar sea level training (SLT). The altitude group (AG, 10 male amateur runners) trained at 2315 m (natural altitude) and the sea level group (SLG, 12 male amateur runners) at 187 m. Both groups performed 7 days of base training (running on a trail) lasting between 60 and 90 min a day and 5 days of interval training (speed and hill runs) for between 10 and 45 min a day. Incremental exercise tests were performed 1 week before (t 1), 3 days after (t 2) and 16 days after (t 3) the 12-day main training period. Within AG, exercise performance improved fromt 1 tot 2 by 8% (P<0.05) and fromt 2 tot 3 by 8% (P<0.05). Maximum oxygen uptake ( ) increased fromt 2 tot 3 by 10% (P<0.05). Within SLG exercise performance increased fromt 2 tot 3 by 8% (P<0.05). Att 3, relative and absolute in AG were significantly higher in comparison with SLG (P=0.005 andP=0.046 respectively). The improved performance 3 days after AT may be explained in part by an increased oxygen uptake at submaximal exercise intensities without a change in . Further enhancement in performance 2 weeks after AT, however, seems to have been due to the clearly enhanced . Progressive cardiovascular adjustments might have contributed primarily to the time-dependent improvements observed after AT, possibly by an enhanced stroke volume overcompensating the reduced heart rates during submaximal exercise. In conclusion, our findings would suggest that training at a moderate natural altitude improves performance at sea level more than SLT. Combining base and interval training with regulation of intensity by training at constant heart rates during acclimatization at altitude would seem to be a successful training regimen for amateur runners. Most beneficial effects became apparent during the subsequent SLT around 2 weeks after return from altitude. Therefore, we are convinced that AT should be reconsidered as a potent tool for enhancing aerobic capacity, at least in non-elite athletes.  相似文献   
49.
  • ? This study investigated residents' perspectives of their first 2 weeks in a long-term care facility (LTCF). Twelve residents were interviewed to determine their experiences during the first 2 weeks, their needs, priorities and expectations, and their views about how relocation from home could be facilitated. The constant comparative method of qualitative analysis (Glaser & Strauss, 1967) was used.
  • ? Qualitative analysis of the audiotaped interviews revealed four main categories: emotional reactions, transition activities, reflecting on their situation, and connecting with a personal philosophy.
  • ? Residents' responses indicated that if they had actively participated in the decision to be admitted, the adjustment to the LTCF was easier. Connecting with a personal philosophy was also a significant factor.
  • ? Nursing implications include recognition of the importance of preparing residents for admission, involving them in the decision, and listening to their perspectives throughout the relocation experience.
  相似文献   
50.
Rutter's scales for parents and teachers were used to assess the behavioural and emotional adjustment of 151 12-13-year old internationally adopted children. Additional questions about school adjustment were added to the teachers' questionnaire. The majority of the adopted children were found to be well adjusted. However, the adopted children were given higher mean scores both for the full scale and on a "hyperactive" subscale than a comparison group of non-adopted children. More adopted than non-adopted children had problems with arithmetic. Adopted boys had higher mean scores than adopted girls on both Rutter scales. Age at adoption was unrelated to outcome.  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