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   52篇
  免费   3篇
耳鼻咽喉   1篇
儿科学   2篇
妇产科学   3篇
基础医学   2篇
口腔科学   4篇
临床医学   4篇
内科学   7篇
皮肤病学   1篇
神经病学   3篇
外科学   25篇
综合类   2篇
药学   1篇
  2023年   1篇
  2020年   2篇
  2019年   2篇
  2018年   1篇
  2017年   1篇
  2015年   2篇
  2014年   3篇
  2013年   2篇
  2012年   2篇
  2011年   5篇
  2010年   1篇
  2009年   1篇
  2008年   2篇
  2007年   1篇
  2006年   8篇
  2005年   3篇
  2004年   7篇
  2003年   2篇
  2002年   3篇
  2001年   3篇
  1999年   3篇
排序方式: 共有55条查询结果,搜索用时 500 毫秒
21.
Twenty-seven male military recruits with humeral shaft fractures that occurred during throwing of a hand grenade were analyzed to determine the causes and contributing factors of this fracture in recreational pitchers. Average patient age was 22 years (range: 19-27 years). Objective criteria included type and fracture site on radiographs. Subjective data such as throwing style, previous pitching experience, and prodromal arm pain were obtained. The recruits' throwing style was deemed faulty. Analysis of the fracture configurations indicated an external rotation mechanism.  相似文献   
22.
Isolated fractures of the capitellum are rare injuries and account for 1% of all elbow injuries. The purpose of this study is to evaluate the clinical outcomes of 11 Type I capitellum fractures treated by open reduction and internal fixation using at least two standard Herbert screws between 1998 and 2003. The average age of the patients was 27.5 years. The mean follow-up time was 23.4 months. The final postoperative assessment was made at the 12th month. The results were evaluated according to the Mayo Elbow Performance Index. We obtained excellent result in eight patients and good result in three patients. We recommend open reduction and fixation with Herbert screws inserted from the posterior surface of the lateral epicondyle and early mobilization in Type I fractures of the capitellum.  相似文献   
23.
Objectives?To evaluate the health concerns and the perceived non-contraceptive benefits of modern contraceptive methods through utilizing qualitative methods.

Methods?Six focus group discussions were carried out with a total of 53 married women in a socio-economically disadvantaged community in Istanbul, Turkey.

Results?Women had a vague knowledge of the mechanism of menstruation. Some women believed that the uterus was filled with blood—termed ‘dirty blood’—which should be eliminated during menstruation in order to stay healthy. For this reason, amenorrhoea was recognized as the important disadvantage of the progestin-only injectable contraceptives. While the participants mentioned fallacious and exaggerated side effects related to modern methods they did not recognize their non-contraceptive benefits. Most women gained the information concerning side effects through their social networks. Sometimes the information acquired was based on rumours that biased women against the modern contraceptives.

Conclusions?Women outweighed the risks, some of which were fallacious and exaggerated, against the benefits of modern contraceptives. It is crucial to address health concerns of women and what they ‘heard’ from their peers during counselling sessions. Also the non-contraceptive health benefits of modern methods should be well emphasized. Since informal sources are prevalent, the effectiveness of peer education should be studied in this community.  相似文献   
24.
25.
Using data drawn from the 2008 Youth in Europe Survey, the current study examined alcohol consumption among Turkish adolescents through the lens of Agnew's general strain theory (GST). Although considerable attention has been paid to alcohol consumption among adolescents, extant research has remained limited to Western countries. Similarly, much of the support for GST was derived from research conducted in the United States. The current study explores factors associated with alcohol consumption in Turkey and tests the generalizability of GST. Results from ordinal logistic regression analyses indicated that, except for family strain, specific kinds of strain were significantly associated with drinking behavior without any mediating effect that could emanate from students’ negative affective states.  相似文献   
26.
The internal thoracic artery (ITA) is typically harvested from the chest wall by means of conventional electrocautery. We investigated the effects of electrocautery on endothelial-cell and vessel-wall morphology at the ultrastructural level during ITA harvesting.Internal thoracic artery specimens from 20 patients who underwent elective coronary artery bypass grafting were investigated in 2 groups. The ITA grafts were sharply dissected with use of a scalpel and clips in the control group (n=10) and were harvested by means of electrocautery in the study group (n=10). Each sample was evaluated for intimal, elastic-tissue, muscular-layer, and adventitial changes. Free flow was measured intraoperatively. Light microscopic examinations were performed after hematoxylin-eosin and Masson''s trichrome staining. Transmission electron microscopy was used to evaluate ultrastructural changes in the endothelial cells and vessel walls of each ITA.In the sharp-dissection group, the endothelial surfaces were lined with normal amounts of original endothelium, endothelial cells were distinctly attached to the basal lamina, cytoplasmic organelles were evident, and intercellular junctional complexes were intact. Conversely, in the electrocautery group, the morphologic integrity of endothelial cells was distorted, with some cell separations and splits, contracted cells, numerous large cytoplasmic vacuoles, and no visible cytoplasmic organelles. The subendothelial layer exhibited disintegration. Free ITA flow was higher in the sharp-dissection group (P=0.04).The integrity of endothelial cells can be better preserved when the ITA is mobilized by means of sharp dissection, rather than solely by electrocautery; we recommend a combined approach.  相似文献   
27.
28.
Bone marrow is a major homing site for circulating epithelial tumor cells. The present study was aimed to assess the proliferative capacity of occult metastatic cells in bone marrow of patients with operable solid tumors especially with regard to their clinical outcome. We obtained bone marrow aspirates from 153 patients with carcinomas of the prostate (n = 46), breast (n = 45), colon (n = 33), and kidney (n = 29). Most of the patients (87%) had primary disease with no clinical signs of overt metastases [tumor-node-metastasis (TNM)-stage UICC (Union Internationale Contre le Cancer) I-III]. After bone marrow was cultured for 21-102 days under special cell culture conditions, viable epithelial cells were detected by cytokeratin staining in 124 patients (81%). The cultured epithelial cells harbored Ki-ras2 mutations and numerical chromosomal aberrations. The highest median number of expanded tumor cells was observed in prostate cancer (2,619 per flask). There was a significant positive correlation between the number of expanded tumor cells and the UICC-stage of the patients (P = 0.03) or the presence of overt metastases (P = 0.04). Moreover, a strong expansion of tumor cells was correlated to an increased rate of cancer-related deaths (P = 0.007) and a reduced survival of the patients (P = 0.006). In conclusion, the majority of cancer patients have viable tumor cells in their bone marrow at primary tumor diagnosis, and the proliferative potential of these cells determines the clinical outcome.  相似文献   
29.
Drug-induced pancreatitis has been reported rarely. Bortezomib is a selective and reversible proteasome inhibitor used for the treatment of patients with multiple myeloma (MM). Recently, one case report about acute pancreatitis (AP) caused by bortezomib was published in the international literature. Herein we report a case of AP in a 67-year-old male on bortezomib therapy. On the fourth day after the first administration of bortezomib, the patient admitted to the hospital with symptoms of AP. The common etiological factors for AP were all excluded. Than the patient was diagnosed as bortezomib-induced pancreatitis.  相似文献   
30.
Exposure to suicidal behavior (ESB) through social networks is often associated with an increased risk of suicidality, but empirical research—largely limited to the Western populations—has produced mixed results. Using survey data, we examined (a) the association between ESB and suicide attempt, and (b) the exacerbating role of ESB on gender differences in suicide attempt risk among Turkish adolescents (N?=?2035). ESB was significantly associated with increased risk of suicide attempt, and it contributed to the higher attempt risk among girls. Suicidal behaviors spread through social networks via ESB, and suicide contagion exacerbates the existing gender differences.  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