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 15 毫秒
61.
ABSTRACT

Objective: To collect information on diabetes management, including psychosocial aspects, in patients managed by specialists 5 years after they were first surveyed in 1998.

Methods: Data on demography, diabetes status, management and complications were collected via medical records, interview and laboratory assessments. HbA1c was analysed by a central laboratory prospectively.

Results: Patient profile was similar in the 1998 (N = 21 838) and 2003 cohorts (N = 15 549): 95% were diagnosed as type 2 diabetes mellitus and were obese (BMI ≈ 25 kg/m2). Glycaemic control was unsatisfactory in many patients (mean HbA1c ≈ 8%; fasting glucose ≈ 9 mmol/L). Lipids were well-controlled but hypertension was not. The incidence of neuropathy (≈ 33%) and cataract (≈ 27%) were high. The majority (≈ 71%) of patients in both cohorts were treated with oral antidiabetic drug (OAD) monotherapy; ≈ 24% were on insulin therapy. Approximately half of the 2003 cohort reported a healthy state of well-being. Quality of life did not appear to have suffered as a result of having diabetes. However, many patients were worried about hypoglycaemic risk (53.9%) or worsening of diabetes (45.8%) and insulin initiation (64.5%).

Conclusions: Although both cohorts were separate cross-sectional studies of diabetes management status in Asia, the results showed that the demography profile, glycaemic control and cardiovascular risk factors were remarkably similar in both cohorts 5 years after the first survey. More concerted efforts are needed to increase diabetes awareness and education.  相似文献   
62.
The aims of this study were to assess the prevalence of temporomandibular joint related (TMJ) painless symptoms, orofacial pain, neck pain, and headache in a Finnish working population and to evaluate the association of the symptoms with psychosocial factors. A self-administered postal questionnaire concerning items on demographic background, employment details, perceived general state of health, medication, psychosocial status, and use of health-care services, was mailed to all employees with at least 5 years at their current job. The questionnaire was completed by 1339 subjects (75%). Frequent (often or continual) TMJ-related painless symptoms were found in 10%, orofacial pain in 7%, neck pain in 39%, and headache in 15% of subjects. Females reported all pain symptoms significantly more often than men (P < 0.001). Frequent pain and TMJ-related symptoms were significantly associated with self-reported stress, depression, and somatization (P < 0.001). Perceived poor general state of health (P < 0.001), health care visits (P < 0.001), overload at work (P < 0.001), life satisfaction (P < 0.05), and work satisfaction (P < 0.05) were also significantly associated with pain symptoms, but the work duty was not (P > 0.05). Our findings are in accordance with earlier studies and confirm the strong relationship between neck pain, headache, orofacial pain, TMJ-related painless symptoms, and psychosocial factors. Furthermore, TMJ-related symptoms and painful conditions seem to be more associated with work-related psychosocial factors than with type of work itself.  相似文献   
63.
64.
By examining competing discourses about women who are maechii (or ‘lay nuns’) in Buddhist Thai society, this paper demonstrates that, although maechii vow to be celibate, social constructions of their role are grounded in sexuality. The discourses examined are those of the Buddhist canon and Sangha (Order of Monkhood), the Thai Maechii Institute, the mass media, and the government. The analysis is supplemented with field observations and interviews with monks, maechii, and lay persons. Findings suggest that maechii comprise an ambiguous category linguistically, Buddhistically, and in terms of their sexuality. Case studies of the founders of nunneries conducted in ChiangMai indicate that maechii leaders have been resisting the prevalent views that most maechii are social misfits, yet also are capable of undermining monks' celibacy and, by extension, the larger social order. The analysis contributes to the understanding of the interconnectedness of gender and sexuality in contemporary Thai society.  相似文献   
65.
胡伟 《当代医学》2013,(24):38-38
目的探讨孕妇围产期的营养注意和身体调节对围产期结局的影响。方法选择孕妇1200例,其中共有587例患者进行了科学营养注意和身体调节,将其设置为观察组,其余孕妇设置为对照组。对两组患者的并发症情况进行统计分析。结果观察组孕妇并发症发生率、新生儿窒息等概率明显低于对照组,P<0.05,差异具有统计学意义。结论对孕妇进行围产期的营养指导和身体调节,能够有效降低孕妇发生并发症的几率,明显改善围产期结局。  相似文献   
66.
Recently, Laubender and Bender (Stat. Med. 2010; 29: 851–859) applied the average risk difference (RD) approach to estimate adjusted RD and corresponding number needed to treat measures in the Cox proportional hazards model. We calculated standard errors and confidence intervals by using bootstrap techniques. In this paper, we develop asymptotic variance estimates of the adjusted RD measures and corresponding asymptotic confidence intervals within the counting process theory and evaluated them in a simulation study. We illustrate the use of the asymptotic confidence intervals by means of data of the Düsseldorf Obesity Mortality Study. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
67.
The authors studied the relationships among cognitive coping strategies, goal adjustment processes (disengagement and reengagement), and depressive symptomatology in a sample of 139 patients who had experienced a first-time acute myocardial infarction between 3 and 12 months before data assessment. They assessed cognitive coping strategies, goal adjustment, and depressive symptoms by the Cognitive Emotion Regulation Questionnaire, the Goal Obstruction Questionnaire, and the Hospital Anxiety and Depression Scale, respectively. Main statistical methods were Pearson correlations and multiple regression analyses. Results show significant associations among the cognitive coping strategies of rumination, catastrophizing, and higher depressive symptoms, as well as among positive refocusing, goal reengagement, and lower depressive symptoms. This suggests that cognitive coping and goal reengagement strategies may be useful targets for intervention.  相似文献   
68.
This article summarizes results from a study of hearingimpaired men and women in the labour force in Sweden. A questionnaire about psychosocial work environment (in accordance with the Demand-Control Model), health and wellbeing was sent out and answered by 445 hearingimpaired people, 20-64 years of age. A large reference group had previously answered the same questionnaire. The results indicate that imbalances between demand and control (i.e. high demand and low control, so-called high stress work type) is more common among hearingimpaired people than in the reference group. The outcome of the combination high demand and low control among hearing-impaired people is (much) worse than among hearing-impaired people with other work types ( passive, active, low stress). Hearing-impaired people with the high-stress work type more frequently report bad physical health status and psychological wellbeing regarding a number of indicators. There is, moreover, a tendency for women to be worse off than men. Our data suggest that those involved in audiological rehabilitation should pay great attention to hearing-impaired people with jobs that can be characterized as high stress.  相似文献   
69.
70.
ObjectiveA whole systems research approach was used to explore the psychosocial functions attributed to an Integrative Medicine oncology program. Field research was conducted at a cancer clinic to answer the following questions: (1) what meanings do the participants attribute to the Integrative Medicine oncology program; (2) what contributes to sustaining the Integrative Medicine program; and (3) what role does the Integrative Medicine program play in the lives of the participants.MethodsParticipant observation and in-depth interviews were conducted at a community-based cancer clinic that offers various complementary modalities along with conventional cancer treatments.ParticipantsThe data were obtained from a total of 23 participants including cancer patients/survivors, caregivers, volunteers who provided the complementary therapies, and healthcare professionals at the clinic.ResultsResults indicated that the Integrative Medicine program had three major psychosocial functions for those involved. Participants viewed the Integrative Medicine program as a place (1) to exchange health/medical information and learn from others' experiences and expertise, (2) to give and receive emotional support, and (3) for the individual to act on his/her transformed new identity and new life goals through serving others.ConclusionsThe results illustrate the positive psychosocial impacts an Integrative Medicine program may bring to individuals involved in it and suggest the value of using a whole systems research (WSR) approach to Integrative Medicine research.  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