全文获取类型
收费全文 | 347篇 |
免费 | 29篇 |
专业分类
耳鼻咽喉 | 5篇 |
儿科学 | 1篇 |
妇产科学 | 6篇 |
基础医学 | 30篇 |
口腔科学 | 5篇 |
临床医学 | 52篇 |
内科学 | 55篇 |
神经病学 | 22篇 |
特种医学 | 31篇 |
外科学 | 61篇 |
综合类 | 5篇 |
一般理论 | 1篇 |
预防医学 | 36篇 |
眼科学 | 2篇 |
药学 | 33篇 |
肿瘤学 | 31篇 |
出版年
2023年 | 2篇 |
2022年 | 7篇 |
2021年 | 17篇 |
2020年 | 8篇 |
2019年 | 13篇 |
2018年 | 11篇 |
2017年 | 10篇 |
2016年 | 9篇 |
2015年 | 14篇 |
2014年 | 28篇 |
2013年 | 19篇 |
2012年 | 24篇 |
2011年 | 25篇 |
2010年 | 15篇 |
2009年 | 7篇 |
2008年 | 33篇 |
2007年 | 26篇 |
2006年 | 15篇 |
2005年 | 20篇 |
2004年 | 12篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1976年 | 3篇 |
1974年 | 1篇 |
1970年 | 1篇 |
排序方式: 共有376条查询结果,搜索用时 281 毫秒
1.
Margaret H. Lauerman Karen Irizarry Clint Sliker Brandon R. Bruns Ronald Tesoriero Thomas M. Scalea Deborah M. Stein 《Injury》2019,50(1):131-136
Background
Current blunt cerebrovascular injury (BCVI) grading grossly differentiates injury characteristics such as luminal stenosis (LS) and aneurysmal disease. The effect of increasing degree of LS beyond the current BCVI grading scale on stroke formation is unknown.Study Design
BCVI over a 3-year period were retrospectively reviewed. To investigate influence of LS beyond the BCVI grading scale within aneurysmal and non-aneurysmal BCVI, grade 2 BCVI were subdivided into BCVI with ≥ 25% and ≤ 50% LS and BCVI with > 50% and ≤ 99% LS. Grade 3 BCVI were subdivided into BCVI with pseudoaneurysm (PSA) without LS and BCVI with PSA and LS. We hypothesized increased LS beyond the current BCVI grade distinctions would be associated with higher rates of stroke formation.Results
312 BCVI were included, of which 140 were carotid BCVI and 172 vertebral BCVI. Sixteen carotid BCVI underwent endovascular intervention (EI) and 19 suffered a stroke. In carotid BCVI stroke rates increased sequentially with BCVI grade except in grade 3. There was a stroke rate of 12% in grade 1 carotid BCVI, 18% in grade 2, 6% in grade 3, and 31% in grade 4. In subgroup analysis for grade 2 carotid BCVI, BCVI with > 50% and ≤ 99% LS had higher rates of stroke (22% vs. 15%, p?=?0.44) than BCVI with ≥ 25% and ≤ 50% LS. In subgroup analysis of grade 3 carotid BCVI, BCVI with PSA and LS had higher rates of stroke (9% vs. 4%, p?=?0.48) than BCVI with PSA without LS. Higher rates of EI in grade 2 carotid BCVI with > 50% and ≤ 99% LS (22% vs. 5%, p?=?0.14) and grade 3 carotid BCVI with PSA and LS (35% vs. 4%, p?=?0.01) were noted in subgroup analysis.Conclusion
Higher percentage LS beyond the currently used BCVI grading scale has a non-significantly increased rate of stroke in both aneurysmal and non-aneurysmal BCVI. Grade 3 BCVI with PSA and LS seems to be a high-risk subgroup. Use of EI confounds modern measurement of stroke risk in higher LS BCVI. 相似文献2.
Clint R. Bellenger John B. Arnold Jonathan D. Buckley Dominic Thewlis Joel T. Fuller 《Journal of Science and Medicine in Sport》2019,22(3):294-299
Objectives
To investigate whether functional overreaching affects locomotor system behaviour when running at fixed relative intensities and if any effects were associated with changes in running performance.Design
Prospective intervention study.Methods
Ten trained male runners completed three training blocks in a fixed order. Training consisted of one week of light training (baseline), two weeks of heavy training designed to induce functional overreaching, and ten days of light taper training designed to allow athletes to recover from, and adapt to, the heavy training. Locomotor behaviour, 5-km time trial performance, and subjective reports of training status (Daily Analysis of Life Demands for Athletes (DALDA) questionnaire) were assessed at the completion of each training block. Locomotor behaviour was assessed using detrended fluctuation analysis of stride intervals during running at speeds corresponding to 65% and 85% of maximum heart rate (HRmax) at baseline.Results
Time trial performance (effect size ±95% confidence interval (ES): 0.16 ± 0.06; p < 0.001), locomotor behaviour at 65% HRmax (ES: ?1.12 ± 0.95; p = 0.026), and DALDA (ES: 2.55 ± 0.80; p < 0.001) were all detrimentally affected by the heavy training. Time trial performance improved relative to baseline after the taper (ES: ?0.16 ± 0.10; p = 0.003) but locomotor behaviour at 65% HRmax (ES: ?1.18 ± 1.17; p = 0.048) and DALDA (ES: 0.92 ± 0.90; p = 0.045) remained impaired.Conclusions
Locomotor behaviour during running at 65% HRmax was impaired by functional overreaching and remained impaired after a 10-day taper, despite improved running performance. Locomotor changes may increase injury risk and should be considered within athlete monitoring programs independently of performance changes. 相似文献3.
4.
5.
6.
Extended coverage digital elevation models (DEMs) including topographic and bathymetric area at moderate resolution are needed for regional-scale hazard modelling. Shuttle Radar Topography Mission (SRTM) provides important intermediate-scale information between coarse resolution data sets of wide area and high-resolution data sets of limited area. Although there are many anthropogenic structures that cause errors in the height of SRTM data, the measurement error is given as a single value for the entire area. The filter residuals in an adaptive multi-scale fusion algorithm were used to evaluate the landscape-dependent accuracy of SRTM elevations over the Florida coastal urban area. With accuracy and employing a stochastic framework to optimally fuse National Geophysical Data Center (NGDC) data, SRTM data and high-resolution light detection and ranging data, single seamless fused DEMs at multiple scales were derived for the coastal area and improved DEM quality at 30 m scale for coastal flood prediction was demonstrated. 相似文献
7.
Clint L. Miller Amy R. Kontorovich Ke Hao Lijiang Ma Conrad Iyegbe Johan L.M. Björkegren Jason C. Kovacic 《Journal of the American College of Cardiology》2021,77(20):2531-2550
In this second of a 5-part Focus Seminar series, we focus on precision medicine in the context of vascular disease. The most common vascular disease worldwide is atherosclerosis, which is the primary cause of coronary artery disease, peripheral vascular disease, and a large proportion of strokes and other disorders. Atherosclerosis is a complex genetic disease that likely involves many hundreds to thousands of single nucleotide polymorphisms, each with a relatively modest effect for causing disease. Conversely, although less prevalent, there are many vascular disorders that typically involve only a single genetic change, but these changes can often have a profound effect that is sufficient to cause disease. These are termed “Mendelian vascular diseases,” which include Marfan and Loeys-Dietz syndromes. Given the very different genetic basis of atherosclerosis versus Mendelian vascular diseases, this article was divided into 2 parts to cover the most promising precision medicine approaches for these disease types. 相似文献
8.
9.
Clint Douglas Diana Schmalkuche Debra Nizette Patsy Yates Ann Bonner 《Collegian (Royal College of Nursing, Australia)》2018,25(4):363-370
Background
Nurse-led services are expanding in Australia, yet current information about the scope and nature of these services is lacking. The need for more coordinated service planning and systematic evaluation prompted a scoping study to inform future development.Aim
To provide a comprehensive profile of nurse-led services in the Queensland public health system.Methods
A scoping study of 257 nurse-led services was conducted using an online survey distributed through each Hospital and Health Service in Queensland. Service level data were collected on structure, process and outcome evaluation, as well as enablers and barriers to sustainability of care delivery models.Findings
There is a diverse and growing range of nurse-led services across the state that have evolved to meet the dynamic needs of their communities. Increasingly, registered nurses are rising to the challenge of providing equitable and accessible healthcare in ways that transcend traditional professional or care setting boundaries. The major challenges for sustainability were funding and resource limitations, particularly for developing service capacity to meet growing demands. There were also tensions around the need for ongoing negotiation and review of nurse-led services with medical and administrative stakeholders.Discussion
Findings underscore the need for a modernised regulatory and policy framework to support sustainable nurse-led services and allow nurses to work to their full potential to optimise outcomes for the community.Conclusion
Nurse-led services are the sleeping giant of healthcare reform in Australia. Now is the time for policy and practice changes that will realise the transformative potential of nurse-led care. 相似文献10.
van Rensburg Susan J. Hattingh Coenraad Johannes Clint Moremi Kelebogile E. Peeters Armand V. van Heerden Carel J. Erasmus Rajiv T. Zemlin Annalise E. Kemp Merlisa C. Jaftha Mariaan Khine Aye Aye Potocnik Felix C.V. Whati Lindiwe Engel-Hills Penelope van Toorn Ronald Kotze Maritha J. 《Metabolic brain disease》2021,36(6):1169-1181
Metabolic Brain Disease - In Part I of this Review we evaluated the scientific evidence for a Metabolic Model of multiple sclerosis (MS). Part II outlines the implementation of an adaptive... 相似文献