全文获取类型
收费全文 | 1053篇 |
免费 | 82篇 |
专业分类
耳鼻咽喉 | 20篇 |
儿科学 | 43篇 |
妇产科学 | 40篇 |
基础医学 | 163篇 |
口腔科学 | 67篇 |
临床医学 | 193篇 |
内科学 | 156篇 |
皮肤病学 | 10篇 |
神经病学 | 122篇 |
特种医学 | 10篇 |
外科学 | 49篇 |
综合类 | 5篇 |
预防医学 | 126篇 |
眼科学 | 47篇 |
药学 | 37篇 |
中国医学 | 1篇 |
肿瘤学 | 46篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 11篇 |
2021年 | 24篇 |
2020年 | 24篇 |
2019年 | 18篇 |
2018年 | 21篇 |
2017年 | 22篇 |
2016年 | 36篇 |
2015年 | 42篇 |
2014年 | 44篇 |
2013年 | 70篇 |
2012年 | 78篇 |
2011年 | 85篇 |
2010年 | 47篇 |
2009年 | 57篇 |
2008年 | 67篇 |
2007年 | 69篇 |
2006年 | 51篇 |
2005年 | 60篇 |
2004年 | 68篇 |
2003年 | 51篇 |
2002年 | 46篇 |
2001年 | 12篇 |
2000年 | 12篇 |
1999年 | 12篇 |
1998年 | 17篇 |
1997年 | 11篇 |
1996年 | 12篇 |
1995年 | 7篇 |
1994年 | 11篇 |
1993年 | 6篇 |
1992年 | 5篇 |
1991年 | 3篇 |
1990年 | 5篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 4篇 |
1979年 | 1篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1975年 | 1篇 |
1971年 | 1篇 |
1964年 | 1篇 |
排序方式: 共有1135条查询结果,搜索用时 15 毫秒
81.
A new instrument, the Body Change Inventory, was developed to provide an assessment of body change strategies that are used by both adolescent girls and boys. The novel aspect of this instrument is that it evaluates strategies to increase body size and increase muscle size, as well strategies to decrease body size. Independent samples of adolescent girls and boys aged between 11 and 17 years (N=1732) participated in four studies. The revised instrument consisted of three body change scales-Strategies to Decrease Body Size, Strategies to Increase Body Size, and Strategies to Increase Muscle Size. The studies demonstrated content validity, construct validity, internal consistency, and concurrent and discriminant validity for the new scales. The new scales provide a valuable addition in the literature for assessing three global body change strategies among adolescent girls and boys. They are needed in order to examine further the normative development of different kinds of body change strategies and how these may lead to behavioural problems such as disordered eating, exercise dependence, and steroid use. 相似文献
82.
This study investigated the association between the severity and duration of physical disability and sexual esteem, sexual depression, sexual satisfaction, and the frequency of sexual behavior. A total of 1,196 participants completed the study. There were 748 participants (367 males, 381 females) who had a physical disability and 448 participants (171 males, 277 females) who were able-bodied. The age range of participants was 18–69 years, with a mean age of 36.39 years (SD = 10.41). The results demonstrated that people with more severe physical impairments experienced significantly lower levels of sexual esteem and sexual satisfaction and significantly higher levels of sexual depression than people who had mild impairments or who did not report having a physical impairment. The study also found that people with more severe physical disabilities engaged in mutual sexual activity significantly less frequently. Women with physical disabilities had significantly more positive feelings about their sexuality and significantly more frequent mutual sexual experiences than their male counterparts. For people with physical disabilities, the frequency of oral sex and nude cuddling were significant predictors of sexual satisfaction in men, while the frequency of deep kissing predicted sexual satisfaction in women. Furthermore, the viewing of erotica was significantly related to sexual dissatisfaction in men. Finally, it was found that people who had experienced their physical impairment for a longer period of time reported significantly more positive feelings about their sexuality. Implications of these findings are discussed and suggestions are made for future research. 相似文献
83.
Su L Huang J Mellor D Yang W McCabe M Shen Y Li H Wang W Xu Y 《Social science & medicine (1982)》2012,75(5):823-827
To explore and compare attitudes of consumers (patients and their family members) and medical staff toward clinical trials related to mental health in China, we developed two questionnaires for medical staff and patients and their family members. Approximately 66.2% of medical staff who had no research experience believed that patients could be persuaded to participate in clinical trials, but the percentage of consumers who believed so was just 12.5%. Both groups agreed that written informed consent was required; however, more medical staff than patients agreed that such consent could be provided by patients or their guardian (88.4% vs. 71.4%). Only 9.5% of medical staff thought that patient treatment would be compromised by refusal to participate; the proportion of consumers who thought the same was 29.4%. Great differences exist between medical staff and consumers' attitudes and beliefs regarding clinical trials. Medical staff were more likely to have a favorable attitude toward their patients participating in clinical trials and considered that informed consent could be provided by guardians rather than the patient. 相似文献
84.
Inger Skolin Ylva Britt Wahlin Daniel A. Broman Ulla-Kaisa Koivisto Hursti Marita Vikström Larsson Olle Hernell 《Supportive care in cancer》2006,14(4):369-378
Goals of work The purpose of this study was to better understand various variables related to food intake and eating problems in children with cancer during their chemotherapy.Patients and methods Twenty-two consecutively admitted children, diagnosed with cancer and undergoing chemotherapy, participated in this study. Twenty-one of them, their parents and attending nurses participated in semi-structured interviews. Ten of the children underwent a taste acuity test, and recognition thresholds for the four basic tastes were determined.Main results The shared view of both children and parents was that altered taste was the predominant cause of the eating problems. In contrast, the nurses perceived that nausea was the most important cause of the children’s eating problems. In addition, psychological aspects such as learned food aversions and negative attitudes towards hospital food were regarded as important by children, parents and nurses. The taste test showed that the patients had higher thresholds for bitter taste and made more taste recognition errors compared to controls.Conclusions Changes seem to exist both in the primary gustatory sense as well as in food perception in paediatric cancer patients undergoing chemotherapy. Single solutions, such as efforts to serve “tasty food”, do not suffice alone. A more effective solution may be to combine different strategies and combinations of oral, enteral and parenteral nutrition should be considered to prevent malnutrition. 相似文献
85.
Smeltzer SC Zimmerman V Frain M DeSilets L Duffin J 《Online journal of issues in nursing》2004,9(1):11
Online health promotion materials have great potential to reach persons with disabilities and provide valuable information to this vulnerable population. While health promotion efforts are important for everyone, they are crucial for individuals with disabilities. Yet information needed to support these efforts is often presented in such a way that its access is limited or its content is inappropriate for this population. Whether designing or selecting online materials for individuals with disabilities, nurses can benefit from knowledge about strategies to make web sites more accessible or to assess the accessibility of existing web sites. The task of providing health promotion information to women with disabilities was undertaken as part of the "Health Promotion for Women with Disabilities Project" at Villanova University's College of Nursing. A web site was created as one method of providing information. This paper presents strategies that are used to make this site accessible. 相似文献
86.
Marita G. Titler MA RN Debra Pettit MA RN Gloria M. Bulechek PhD RN Joanne C. McCloskey PhD RN Martha J. Craft PhD RN Marlene Z. Cohen PhD RN John D. Crossley MA RN Janice A. Denehy PhD RN Orpha J. Glick PhD RN Thomas W. Kruckeberg MS Meridean L. Maas PhD RN Colleen M. Prophet MA RN Toni Tripp–Reimer PhD RN 《International journal of nursing terminologies and classifications》1991,2(2):45-56
The Classification of Nursing Interventions research team at The University of Iowa, College of Nursing is building a taxonomy of nursing interventions that will include all of the direct care treatment activities that nurses perform on behalf of patients. This report describes the study in which 12 nursing interventions and their associated activities for care of the integument were extracted from a large database and validated through a two-round Delphi survey. Using an adaptation of Fehring's model for determining diagnostic content validity of nursing diagnoses, a definition, critical activities, and supporting activities were developed for each of the following interventions: Bathing, Bedrest Care, Hair Care, Nail Care, Oral Health Maintenance, Oral Health Promotion, Oral Health Restoration, Positioning, Pressure Management, Skin Care–Topical Treatments, Skin Surveillance, and Wound Care. Further research is needed to validate supporting activities and to continue classifying interventions and activities that nurses use in treating impaired skin integrity (potential and actual) and altered oral mucous membrane integrity (potential and actual). 相似文献
87.
88.
Sari Kivist? Marita Lipsanen-Nyman Markku Kupari Pauli Hekali Kirsi Lauerma 《Journal of cardiovascular magnetic resonance》2004,6(3):645-652
Mulibrey nanism (MUL) is an autosomal recessive disorder that is enriched in the Finnish population. Variable degrees of pericardial and myocardial involvement can lead to heart failure and premature death. The purpose of this study was using magnetic resonance imaging (MRI) to assess structural and functional abnormalities of the MUL cardiopathy in all four cardiac chambers as well as in the pericardium. Thirty-one patients with MUL (mean age 27, range 15-50 years) and 16 controls (mean age 31, range 19-45 years) were examined with a Siemens Vision 1.5-T imager. Ten patients had undergone pericardiectomies to relieve symptoms of constrictive pericarditis. In surgery performed 0.5-25 years before MRI, the removed pericardium was found to be thickened and consisting of scarlike fibrosis. Turbo spin echo images were obtained for assessment of pericardial thickness, and breath hold left ventricular (LV) short axis and four-chamber cine images were obtained for the volumetric data. In MRI, pericardial thickness was normal (under 3.4 mm) in all patients with MUL. In the 10 pericardiectomized patients, the remnants of the pericardium were of normal thickness as well. The LV septum (p = 0.01) and posterior wall (p<0.001) were hypertrophied and end-diastolic volumes of both ventricles (p<0.05) were reduced in all patients. The LV systolic function was preserved. The volume chance during the first third of diastole (p = 0.030), the absolute peak filling rate (p = 0.047), and the time to peak rate of LV diastolic filling (p = 0.030) indicated restrictive LV diastolic filling. The right ventricular ejection fraction and contraction of both atria were reduced. 相似文献
89.
Herr K Titler MG Schilling ML Marsh JL Xie X Ardery G Clarke WR Everett LQ 《The Clinical journal of pain》2004,20(5):331-340
OBJECTIVES: To report data on current nurse practice behaviors related to evidence-based assessment of acute pain in older adults, perceived stage of adoption of pain assessment practices, and perceptions of barriers to optimal assessment in this population. METHODS: Medical records from 709 older adult patients hospitalized with hip fractures from 12 acute care settings were abstracted for nurse assessment practices during the first 72 hours after admission. Questionnaires sent to nurses on study units regarding perceived stage of adoption and barriers to assessment in older adults. RESULTS: Data revealed several areas in which pain assessment practices were not optimal. Pain was not routinely assessed every 4 hours, and pain location was assessed even less frequently. Pain behaviors were assessed more in patients with a diagnosis of dementia compared to those without dementia, but the frequency of pain behavior assessments was low. Pain was not routinely assessed within 60 minutes of administering an analgesic. Nurses reported not using optimal pain assessment practices even when they were aware of and persuaded that those practices were desirable. In addition, nurses reported that difficulty communicating with patients created the greatest challenge in managing pain. CONCLUSIONS: Our data suggest that pain is not being assessed and reassessed in a manner that is consistent with current practice recommendations in older adult patients with pathologic processes that highly suggest the presence of acute pain. 相似文献
90.
Tipton JM McDaniel RW Barbour L Johnston MP Kayne M LeRoy P Ripple ML 《Clinical journal of oncology nursing》2007,11(1):69-78
Chemotherapy-induced nausea and vomiting (CINV) continues to have a considerable effect on the physical and psychological well-being of patients with cancer, despite significant advances in antiemetic drugs since the 1990s. This article reviews and summarizes past and current empirical evidence related to interventions for CINV. A resource that summarizes evidence-based interventions for CINV is critical for effective management of this distressing symptom. Pharmacologic and nonpharmacologic interventions are appraised. Finally, gaps in the literature and opportunities for research, education, and practice changes are discussed. 相似文献