全文获取类型
收费全文 | 3246篇 |
免费 | 250篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 11篇 |
儿科学 | 52篇 |
妇产科学 | 68篇 |
基础医学 | 174篇 |
口腔科学 | 76篇 |
临床医学 | 915篇 |
内科学 | 166篇 |
皮肤病学 | 8篇 |
神经病学 | 158篇 |
特种医学 | 46篇 |
外科学 | 171篇 |
综合类 | 278篇 |
一般理论 | 2篇 |
预防医学 | 1223篇 |
眼科学 | 6篇 |
药学 | 101篇 |
14篇 | |
中国医学 | 15篇 |
肿瘤学 | 23篇 |
出版年
2024年 | 7篇 |
2023年 | 65篇 |
2022年 | 84篇 |
2021年 | 108篇 |
2020年 | 144篇 |
2019年 | 130篇 |
2018年 | 117篇 |
2017年 | 118篇 |
2016年 | 102篇 |
2015年 | 86篇 |
2014年 | 176篇 |
2013年 | 250篇 |
2012年 | 147篇 |
2011年 | 150篇 |
2010年 | 97篇 |
2009年 | 138篇 |
2008年 | 167篇 |
2007年 | 163篇 |
2006年 | 148篇 |
2005年 | 132篇 |
2004年 | 143篇 |
2003年 | 122篇 |
2002年 | 110篇 |
2001年 | 108篇 |
2000年 | 63篇 |
1999年 | 41篇 |
1998年 | 30篇 |
1997年 | 45篇 |
1996年 | 26篇 |
1995年 | 26篇 |
1994年 | 19篇 |
1993年 | 36篇 |
1992年 | 38篇 |
1991年 | 27篇 |
1990年 | 27篇 |
1989年 | 23篇 |
1988年 | 23篇 |
1987年 | 19篇 |
1986年 | 6篇 |
1985年 | 5篇 |
1984年 | 6篇 |
1983年 | 7篇 |
1982年 | 3篇 |
1981年 | 10篇 |
1980年 | 3篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1976年 | 5篇 |
1975年 | 1篇 |
排序方式: 共有3507条查询结果,搜索用时 31 毫秒
101.
102.
Blythe Bell 《Nursing inquiry》2021,28(1):e12379
Literature on racism, anti‐racism, whiteness, nursing education and nurse educators was reviewed and analysed for the development of race consciousness and application of anti‐racist pedagogy. The literature describes an oppressive educational climate for non‐white identifying people, a curriculum that does not attend to the social construction of difference, and a nursing culture that is not consciously situated in a broader sociopolitical context. A particular focus on studies of nurse educators demonstrates a stark need for personal and professional development towards effectively delivering anti‐racist pedagogy and a deconstruction of white normativity and dominance amongst white faculty. The protection and reproduction of white privilege is identified through the scholarship itself through a lack of racial analysis, an externalization of the root of oppression and non‐specific study measures and outcomes. The persistence and pervasiveness of white dominance in nursing and the lack of anti‐racist competence in white educators, particularly, merits a shift in anti‐racist efforts away from short‐term skill acquisition initiatives towards the deconstruction of socialized white supremacy and enactments of white privilege in nurse educators themselves. 相似文献
103.
目的:分析成批吸入性损伤患者救援护士核心能力的培训效果,改进培训工作,提高护理人员对成批吸入性损伤患者的救护能力。方法针对参与2010年上海“11?15”特大火灾救护的42名护理人员进行相应救护核心能力培训,培训周期为1周。对42名护理人员培训前后的专业理论知识和操作技能进行考核,同时采用自行设计的核心能力自我评价量表及满意度调查表调查42名成员培训前后的核心能力及对培训的满意度,并对所获取的资料分析、整理、归纳。结果经救治的19例吸入性损伤患者中,中、重度吸入性损伤患者肺部感染率分别为27.28%和85.71%,所有患者均治愈出院。培训后,42名护理人员理论平均成绩由培训前的(67.60±9.23)分上升至(82.31±4.98)分,操作技能平均成绩由(63.93±6.68)分提升至(77.60±3.72)分,培训前后比较,差异有统计学意义(t值分别为-9.09,-11.59;P<0.01)。不同科室的护理人员培训前后理论知识与操作技能均有提高,差异有统计学意义( P<0.05)。培训人员对操作课程设置、培训专家及总体满意情况均为100%,对理论课程设置满意度为97.62%。结论成批吸入性损伤患者救援护士的核心能力培训模式有利于提高护理人员对该类型突发公共卫生事件的救护能力。 相似文献
104.
Singh AH Wolf DM Wang P Arkin AP 《Proceedings of the National Academy of Sciences of the United States of America》2008,105(21):7500-7505
Responses to extracellular stress directly confer survival fitness by means of complex regulatory networks. Despite their complexity, the networks must be evolvable because of changing ecological and environmental pressures. Although the regulatory networks underlying stress responses are characterized extensively, their mechanism of evolution remains poorly understood. Here, we examine the evolution of three candidate stress response networks (chemotaxis, competence for DNA uptake, and endospore formation) by analyzing their phylogenetic distribution across several hundred diverse bacterial and archaeal lineages. We report that genes in the chemotaxis and sporulation networks group into well defined evolutionary modules with distinct functions, phenotypes, and substitution rates as compared with control sets of randomly chosen genes. The evolutionary modules vary in both number and cohesiveness among the three pathways. Chemotaxis has five coherent modules whose distribution among species shows a clear pattern of interdependence and rewiring. Sporulation, by contrast, is nearly monolithic and seems to be inherited vertically, with three weak modules constituting early and late stages of the pathway. Competence does not seem to exhibit well defined modules either at or below the pathway level. Many of the detected modules are better understood in engineering terms than in protein functional terms, as we demonstrate using a control-based ontology that classifies gene function according to roles such as "sensor," "regulator," and "actuator." Moreover, we show that combinations of the modules predict phenotype, yet surprisingly do not necessarily correlate with phylogenetic inheritance. The architectures of these three pathways are therefore emblematic of different modes and constraints on evolution. 相似文献
105.
Julia M Alber Jay M Bernhardt Michael Stellefson Robert M Weiler Charkarra Anderson-Lewis M David Miller Jann MacInnes 《Journal of medical Internet research》2015,17(9)
Background
Social media can promote healthy behaviors by facilitating engagement and collaboration among health professionals and the public. Thus, social media is quickly becoming a vital tool for health promotion. While guidelines and trainings exist for public health professionals, there are currently no standardized measures to assess individual social media competency among Certified Health Education Specialists (CHES) and Master Certified Health Education Specialists (MCHES).Objective
The aim of this study was to design, develop, and test the Social Media Competency Inventory (SMCI) for CHES and MCHES.Methods
The SMCI was designed in three sequential phases: (1) Conceptualization and Domain Specifications, (2) Item Development, and (3) Inventory Testing and Finalization. Phase 1 consisted of a literature review, concept operationalization, and expert reviews. Phase 2 involved an expert panel (n=4) review, think-aloud sessions with a small representative sample of CHES/MCHES (n=10), a pilot test (n=36), and classical test theory analyses to develop the initial version of the SMCI. Phase 3 included a field test of the SMCI with a random sample of CHES and MCHES (n=353), factor and Rasch analyses, and development of SMCI administration and interpretation guidelines.Results
Six constructs adapted from the unified theory of acceptance and use of technology and the integrated behavioral model were identified for assessing social media competency: (1) Social Media Self-Efficacy, (2) Social Media Experience, (3) Effort Expectancy, (4) Performance Expectancy, (5) Facilitating Conditions, and (6) Social Influence. The initial item pool included 148 items. After the pilot test, 16 items were removed or revised because of low item discrimination (r<.30), high interitem correlations (Ρ>.90), or based on feedback received from pilot participants. During the psychometric analysis of the field test data, 52 items were removed due to low discrimination, evidence of content redundancy, low R-squared value, or poor item infit or outfit. Psychometric analyses of the data revealed acceptable reliability evidence for the following scales: Social Media Self-Efficacy (alpha=.98, item reliability=.98, item separation=6.76), Social Media Experience (alpha=.98, item reliability=.98, item separation=6.24), Effort Expectancy(alpha =.74, item reliability=.95, item separation=4.15), Performance Expectancy (alpha =.81, item reliability=.99, item separation=10.09), Facilitating Conditions (alpha =.66, item reliability=.99, item separation=16.04), and Social Influence (alpha =.66, item reliability=.93, item separation=3.77). There was some evidence of local dependence among the scales, with several observed residual correlations above |.20|.Conclusions
Through the multistage instrument-development process, sufficient reliability and validity evidence was collected in support of the purpose and intended use of the SMCI. The SMCI can be used to assess the readiness of health education specialists to effectively use social media for health promotion research and practice. Future research should explore associations across constructs within the SMCI and evaluate the ability of SMCI scores to predict social media use and performance among CHES and MCHES. 相似文献106.
Jeffrey S. Berns David H. Ellison Stuart L. Linas Mitchell H. Rosner 《Clinical journal of the American Society of Nephrology》2014,9(9):1639-1644
The subspecialty of nephrology faces several critical challenges, including declining interest among medical students and internal medicine residents and worrisome declines in the number of applicants for nephrology fellowships. There is an urgent need to more clearly define the subspecialty and its scope of practice, reinvigorate meaningful research training and activities among trainees, and ensure that fellows who complete training and enter the practice of nephrology are experts in the broad scope of nephrology. This need requires a critical look at fellowship training programs and training requirements. A new workforce analysis is also needed that is not focused on primarily meeting estimated future clinical needs but rather, ensuring that there is alignment of supply and demand for nephrology trainees, which will ensure that those entering nephrology fellowships are highly qualified and capable of becoming outstanding nephrologists and that there are desirable employment opportunities for them when they complete their training. 相似文献
107.
Objective
The aim of the study was to determine the effects of a simulated communication training course on nurses’ communication competence, self-efficacy, communication performance, myocardial infarction knowledge, and general satisfaction with their learning experience.Methods
A randomized controlled trial was conducted with a pre-test and two post-tests. The experimental group underwent simulated communication training course and the control group received a case-based communication training course.Results
The experimental group made more significant improvement in competence and self-efficacy in communication from pre-test to the second post-test than the control group. Although both groups’ satisfaction with their learning experience significantly increased from the first post-test to the second post-test, the experimental group was found to be more satisfied with their learning experience than the control group. No significant differences in communication performance and myocardial infarction knowledge between the two groups were identified.Conclusion
Scenario-based communication training can be more fully incorporated into in-service education for nurses to boost their competence and self-efficacy in communication and enhance their communication performance in myocardial infarction patient care.Practice implications
Introduction of real-life communication scenarios through multimedia in communication education could make learners more motivated to practice communication, hence leading to improved communication capacity. 相似文献108.
Clinical Supervision of Psychotherapy: Essential Ethics Issues for Supervisors and Supervisees 下载免费PDF全文
Clinical supervision is an essential aspect of every mental health professional's training. The importance of ensuring that supervision is provided competently, ethically, and legally is explained. The elements of the ethical practice of supervision are described and explained. Specific issues addressed include informed consent and the supervision contract, supervisor and supervisee competence, attention to issues of diversity and multicultural competence, boundaries and multiple relationships in the supervision relationship, documentation and record keeping by both supervisor and supervisee, evaluation and feedback, self‐care and the ongoing promotion of wellness, emergency coverage, and the ending of the supervision relationship. Additionally, the role of clinical supervisor as mentor, professional role model, and gatekeeper for the profession are discussed. Specific recommendations are provided for ethically and effectively conducting the supervision relationship and for addressing commonly arising dilemmas that supervisors and supervisees may confront. 相似文献
109.
《European geriatric medicine》2014,5(1):35-38
BackgroundIn the coming half-century, the population of old people will increase, especially in the oldest age groups. Therefore, the prevalence of multiple chronic conditions, and consequently, the need of health care including care in hospital, is rising.Materials and methodsThis article includes results from three mainly qualitative articles (interviews with frail old people, physicians, and an observational study in acute medical wards) and a cross-sectional survey of newly discharged elderly patients.ResultsHealth care does not take a holistic approach to patients with more complex diseases, such as frail old people. The remuneration system rewards high production of care in terms of numbers of investigations and operations, turnover of hospital beds, and easy accessibility to care. Frail old people do not feel welcome in hospital, with their complex diseases and a need of more time to recover. The staff providing care feels frustrated, and often guilty when taking care of old people.Discussion and conclusionTo improve quality of care of frail elderly, a model is suggested with the following main components: more hospital wards which can address the patients’ whole situation medically, functionally, and psychologically, i.e comprehensive geriatric assessment (CGA). Better identification of frail elderly people is necessary, together with a change in remuneration system, with a focus on the patients’ functional status and quality of life. More training in geriatrics is required for staff to feel confident when treating frail old people. 相似文献
110.