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   264篇
  免费   14篇
耳鼻咽喉   5篇
儿科学   5篇
基础医学   28篇
口腔科学   1篇
临床医学   41篇
内科学   67篇
皮肤病学   4篇
神经病学   14篇
特种医学   4篇
外科学   35篇
综合类   6篇
预防医学   20篇
眼科学   18篇
药学   22篇
中国医学   3篇
肿瘤学   5篇
  2023年   3篇
  2022年   8篇
  2021年   10篇
  2020年   8篇
  2019年   9篇
  2018年   18篇
  2017年   5篇
  2016年   8篇
  2015年   12篇
  2014年   11篇
  2013年   14篇
  2012年   20篇
  2011年   17篇
  2010年   11篇
  2009年   12篇
  2008年   18篇
  2007年   14篇
  2006年   24篇
  2005年   12篇
  2004年   10篇
  2003年   10篇
  2002年   11篇
  2001年   5篇
  2000年   4篇
  1999年   2篇
  1995年   1篇
  1991年   1篇
排序方式: 共有278条查询结果,搜索用时 15 毫秒
21.
With the implementation of clinical governance and professional self-regulation, substantial responsibility is devolved on to clinical nurses. Central to these two concepts is accountability for practice. We are accountable for our professional competence and knowledge to various parties such as the professional statutory body, the employer, society as well as ourselves. Although self-assessment provides each individual with a medium for ascertaining his/her own level of performance and, therefore, identifying his/her learning needs, peer review and peer assessment provide healthy means for obtaining feedback and external perceptions. They also bring with them several other benefits and meet other recommended professional requirements. Peer review is an intrinsic component of clinical governance, and it can be initiated and implemented at one-to-one, departmental or organizational level.  相似文献   
22.
The clinical credibility and clinical competence of nurse lecturers have presented interesting debate for some years in nursing. While some argue that being clinically competent is an unavoidable necessity for nurse lecturers, others are either ambivalent or believe that they do not have to be clinically competent, being clinically credible should suffice. This article distinguishes between the two terms and presents an analysis of how the latter can be developed through the use of paid educational leave. Such leave, known also as a sabbatical, is one of the possible benefits of being a nurse lecturer within higher education in the UK, and it can be used opportunely as a means of regaining and further developing one's clinical skills and knowledge, if this is perceived as a need. If nurse lecturers value the retention and development of one's own clinical skills and knowledge, then some mechanism should be in place for them to achieve this aim. Johns' (1998) model of structured reflection is used for reflecting on one such experience. The article is in two parts.  相似文献   
23.
Tacrolimus is a macrolide agent that is now the primary immunosuppressant used in prevention of graft rejection in transplant recipients. It has been found to be superior to cyclosporine (CSA) for rescue therapy as well as for earlier weaning of steroids. Both tacrolimus and CSA share similar toxicity profiles; however, their gastrointestinal side effects have received little attention. We report three cases of eosinophilic colitis in liver transplant recipients, maintained on tacrolimus as immunosuppressive medication post-liver transplantation. These patients also had high serum immunoglobulin (Ig)E levels, eosinophilia and IgE-positive radioallergosorbent test for milk proteins. The colitis appeared to be mediated by food allergies. Each patient had symptomatic improvement following reduced immunosuppression and an appropriately restricted diet. We conclude that tacrolimus may play a role in the initiation of food allergies, leading to eosinophilic colitis. More studies are needed in a controlled setting to identify the prevalence of similar findings among other pediatric liver transplant recipients.  相似文献   
24.
An increased consumption of energy-dense, nutrient-poor food and beverages as a result of a changing obesogenic environment contributes substantially to the increasing prevalence of childhood overweight and obesity. This paper reviews the nature and extent of food industry influences which expose children to commercial influences and thus might affect unhealthy dietary behaviour and finally contributes to obesity. A systematic search of nine electronic databases (including PubMed, PsycINFO, EconLit) and reference lists of original studies and reviews using key search terms identified 1900 articles. Of these only thirty-six articles met the inclusion and quality criteria. A narrative synthesis of the reviewed studies revealed six key obesogenic environments by which the food industry possibly influences obesity-related dietary behaviours in young children. These were schools, retailers, mass media “television”, mass media “internet”, home and promotional campaigns. Identifying these obesogenic environments is critical for monitoring and controlling the food industry, the development of effective environmental-level interventions to prevent childhood overweight and obesity and to identify knowledge gaps to be addressed in future research to support informed decisions of policy makers.  相似文献   
25.

Objectives

To investigate the patient-reported multidimensional gastrointestinal symptoms predictors of generic health-related quality of life (HRQOL) in pediatric patients with functional gastrointestinal disorders (FGIDs).

Methods

The Pediatric Quality of Life Inventory? (PedsQL?) Gastrointestinal Symptoms Scales and PedsQL? 4.0 Generic Core Scales were completed in a 9-site study by 259 pediatric patients with functional constipation, functional abdominal pain (FAP), or irritable bowel syndrome (IBS). Gastrointestinal Symptoms Scales measuring stomach pain, stomach discomfort when eating, food and drink limits, trouble swallowing, heartburn and reflux, nausea and vomiting, gas and bloating, constipation, blood in poop, and diarrhea were identified as clinically important symptom differentiators from healthy controls based on prior findings, and subsequently tested for bivariate and multivariate linear associations with overall HRQOL.

Results

Gastrointestinal symptoms were differentially associated with decreased HRQOL in bivariate analyses for the three FGIDs. In predictive models utilizing hierarchical multiple regression analyses controlling for age, gender, and race/ethnicity, gastrointestinal symptoms differentially accounted for an additional 47, 40, and 60 % of the variance in patient-reported HRQOL for functional constipation, FAP, and IBS, respectively, reflecting large effect sizes. Significant individual gastrointestinal symptoms predictors were identified after controlling for the other gastrointestinal symptoms in the FGID-specific predictive models.

Conclusions

Gastrointestinal symptoms represent potentially modifiable predictors of generic HRQOL in pediatric patients with FGIDs. Identifying the condition-specific gastrointestinal symptoms that are the most important predictors from the patient perspective facilitates a patient-centered approach to targeted interventions designed to ameliorate impaired overall HRQOL.
  相似文献   
26.
Background Ocular allergies frequently present in pharmacy practices. However, research into the actual management of ocular allergy in pharmacies is lacking. Objective To determine and quantify history and symptom questioning of a patient with presumed allergic conjunctivitis and management strategies employed by pharmacy staff in the UK. Method A mystery shopper technique was used to simulate an episode of allergic conjunctivitis in 100 community pharmacies across the UK. Results The mean number of questions asked by pharmacy staff to the patient was 3.5 ± 2.6, with a range of 0–10. The most common question was whether the patient had a history of allergies (45 %).Ninety-one percent advised on treatment, with the remaining 9 % directly referring to the patient’s general practitioner (n = 4) or pharmacist(n = 4), but only two to their optometrist. The most common treatment suggested was sodium cromoglycate 2 % (50 %). However, many pharmacies advising treatment did not ask the patient’s age (37 %), if they wore contact lenses (43 %), or gave dosage advice (43 %). Only 5 % of pharmacies advised follow up and 14 % suggested visiting a general practitioner and 1 % an optometrist if symptoms did not resolve with treatment. Conclusion There is a need for improved ophthalmological training for pharmacy staff with respect to the management of allergic conjunctivitis.  相似文献   
27.
28.

Ethnopharmacological relevance

Artemisia capillaris Thunberg (Compositae) have been used as traditional medicine as a diuretic, liver protective agent, and for amelioration of inflammatory and analgesic disorders. The present study was carried out to establish the scientific rationale for treating inflammation and to find active principles from A. capillaris.The aim of the present study is to investigate the possible anti-inflammatory mechanism of the major component (capillarisin) isolated from A. capillaris via inhibition of MyD88/TIRAP inflammatory signaling both in vitro and in vivo models.

Materials and methods

The nitrite, PGE2, and TNF-α productions were evaluated by Griess reagent and ELISA kits. The protein and mRNA expression levels were investigated by Western blot and RT-PCR. The NF-κB and AP-1 DNA-binding was performed by electrophoretic mobility shift assay. The CFA- and carrageenan-induced paw edema was performed in ICR mice in which 20 and 80 mg/kg body weight of capillarisin was administered intraperitoneally (i.p.).

Results

The results demonstrated that pretreatment with capillarisin effectively inhibited the LPS-induced activation of NF-κB, Akt, and MAP kinase-activated inflammatory genes, which is mediated by MyD88 and TIRAP. Treatment with capillarisin reduced the mRNA and protein levels of iNOS and COX-2 in RAW 264.7 cells as assessed by RT-PCR and Western blot. Capillarisin suppressed LPS-induced inhibitory kappa kinase (IKK) phosphorylation and the degradation of inhibitory kappa B (IκBα) and prevented the nuclear translocation of p65 and p50. Capillarisin also exhibited a promising inhibitory effect on the LPS-induced NF-κB and AP-1 DNA binding activity based on an electrophoretic mobility shift assay. The LPS-induced activation of p-JNK, p-p38, p-ERK, and p-Akt was significantly inhibited. In addition, the TNF-α level in the media was effectively reduced by capillarisin. In vivo experimental analysis revealed that capillarisin (20 and 80 mg/kg, i.p.) inhibited complete Freund's adjuvant (CFA)-and carrageenan-induced paw edema, nitrite production in plasma, and TNF-α, a pro-inflammatory cytokine production.

Conclusion

The results presented here demonstrate that capillarisin has consistent anti-inflammatory properties and acts by inhibiting inflammatory mediators in in vitro and in vivo experimental models, and suggest its potential utility in the control of inflammatory disorders.  相似文献   
29.
30.
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