全文获取类型
收费全文 | 90篇 |
免费 | 15篇 |
国内免费 | 1篇 |
专业分类
基础医学 | 14篇 |
临床医学 | 18篇 |
内科学 | 9篇 |
皮肤病学 | 2篇 |
神经病学 | 3篇 |
特种医学 | 1篇 |
外科学 | 4篇 |
综合类 | 15篇 |
预防医学 | 2篇 |
药学 | 8篇 |
中国医学 | 8篇 |
肿瘤学 | 22篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 10篇 |
2020年 | 5篇 |
2019年 | 5篇 |
2018年 | 4篇 |
2017年 | 6篇 |
2016年 | 8篇 |
2015年 | 17篇 |
2014年 | 9篇 |
2013年 | 4篇 |
2012年 | 4篇 |
2011年 | 5篇 |
2010年 | 2篇 |
2009年 | 1篇 |
2008年 | 2篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 3篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1983年 | 1篇 |
排序方式: 共有106条查询结果,搜索用时 46 毫秒
71.
72.
《药品管理法》赋予了卫生行政部门行政司法裁决权。本文运用行政汪和民法理论阐述了运用该项权能的程序和原则,指出行使该项权能的注意事项和完善卫生行政司法裁决权的建议。 相似文献
73.
It is well established now that for many metals afraction of the dislocations introduced during plastic de-formation remain in the material after deformation,andare arranged into dislocation boundaries[1-3].Thesedislocation boundaries are in fact rotation boundaries,separating volumes of material with different crystallo-graphic orientations[2-4].An important parameter char-acterizing each dislocation boundary is therefore the mi-sorientation angle across the boundary.Another impor-tant parame… 相似文献
74.
Peng Xia Tianbo Jin Tingting Geng Ting Sun Xiaolan Li Chengxue Dang Longli Kang Chao Chen Jiying Sun 《Tumour biology》2014,35(3):2187-2190
Breast cancer is a heterogeneous disease which is influenced by genetic, environmental, and lifestyle factors. Genetic susceptibility is likely to be due to variants conferring more moderate risks. To identify susceptibility alleles, we conducted a case–control association study in 185 breast cancer cases and 199 controls in the Han population. We genotyped 14 tagging single nucleotide polymorphisms previously implicated in breast cancer using Sequenom MassARRAY SNP genotyping method and identified rs3734805 in the ESR1 gene and rs2048672 in the FLJ43663 gene were associated with breast cancer risk. Allele “C” of rs3734805 was associated with increased breast cancer progression by χ 2 test and additive model analysis (OR?=?1.36; 95 % CI, 1.01–1.82; p?=?0.042). Using recessive model analysis, we found that genotype “GG” of rs2048672 was the protective genotype during breast cancer progression (OR?=?0.55; 95 % CI, 0.32–0.95; p?=?0.029). Our results provide additional insights into the opposing roles of the ESR1 and FLJ43663 genes in breast cancer onset and progression. 相似文献
75.
Ren T Anderson A Shen WB Huang H Plachez C Zhang J Mori S Kinsman SL Richards LJ 《The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology》2006,288(2):191-204
A complex set of axonal guidance mechanisms are utilized by axons to locate and innervate their targets. In the developing mouse forebrain, we previously described several midline glial populations as well as various guidance molecules that regulate the formation of the corpus callosum. Since agenesis of the corpus callosum is associated with over 50 different human congenital syndromes, we wanted to investigate whether these same mechanisms also operate during human callosal development. Here we analyze midline glial and commissural development in human fetal brains ranging from 13 to 20 weeks of gestation using both diffusion tensor magnetic resonance imaging and immunohistochemistry. Through our combined radiological and histological studies, we demonstrate the morphological development of multiple forebrain commissures/decussations, including the corpus callosum, anterior commissure, hippocampal commissure, and the optic chiasm. Histological analyses demonstrated that all the midline glial populations previously described in mouse, as well as structures analogous to the subcallosal sling and cingulate pioneering axons, that mediate callosal axon guidance in mouse, are also present during human brain development. Finally, by Northern blot analysis, we have identified that molecules involved in mouse callosal development, including Slit, Robo, Netrin1, DCC, Nfia, Emx1, and GAP-43, are all expressed in human fetal brain. These data suggest that similar mechanisms and molecules required for midline commissure formation operate during both mouse and human brain development. Thus, the mouse is an excellent model system for studying normal and pathological commissural formation in human brain development. 相似文献
76.
Coupling of optical characterization with particle and network synthesis for biomedical applications
Song L Liu T Liang D Wu C Zaitsev VS Dresco PA Chu B 《Journal of biomedical optics》2002,7(3):498-506
Polymeric microspheres containing a magnetic core have been used in cancer therapy for biophysical targeting of antitumor agents and in magnetic resonance imaging as contrasting agents. For the Human Genome Project, deoxyribose nucleic acid (DNA) capillary electrophoresis has become the most widely used analytical technique where a key component is the design of an effective separation medium. The synthesis and optical characterization of polymeric coated superparamagnetic nanoparticles and of (self-assembled) polymer networks by means of a range of physical techniques, including laser light scattering and laser-induced fluorescence detection, are presented. (1) Polymeric microspheres with a superparamagnetic core. A water-in-oil microemulsion approach has been used successfully to synthesize the superparamagnetic core and the polymeric microsphere in one continuous step. The synthesis permits us to control the magnetic nanoparticle size and the thickness of the hydrogel, ranging from 80 to 320 nm. Magnetite concentration in the microspheres, calculated by vibrating-sample magnetometry, was found to be up to 3.3 wt %. The internal structure of the microspheres, as observed by atomic force microscopy, confirmed a core-shell model. (2) Development of new separation media for DNA capillary electrophoresis. Block copolymers in selective solvents can self-assemble to form supramolecular structures in solution. The nanostructures can be characterized in the dilute concentration regime by means of laser light scattering. At semidilute concentrations, the mesh size, the supramolecular structure, and the surface morphology can be investigated by means of small angle x-ray scattering and atomic force microscopy. The structural knowledge and the information on chain dynamics can then be correlated with electrophoresis using laser-induced fluorescence detection to provide a deeper understanding for the development of new separation media. 相似文献
77.
78.
目的:探索复方麝香注射液治疗中枢意识障碍的临床疗效。方法:将104例意识障碍患者随机分为复方麝香组(治疗组)63例,清开灵组(对照组)41例,进行疗效对比分析。结果:治疗组治愈28例,显效22例,有效6例,总有效率88.89%;对照组治愈10例,显效8例,有效12例,总有效率73.17%,两组疗效差异有显著性(P〈0.05)。治疗组的起效时间和达最大效应时间也明显快于对照组(P〈0.05),从证效关系分析,复方麝香注射液对痰热内闭型的疗效优于痰浊内盛型(P〈0.025);同时提示复方麝香注射液的治疗效果与剂量呈正相关。结论:复方麝香注射液具有醒脑止痉、清热凉血、行气活血和解毒止痛等功效,是防治意识障碍的安全、有效药物。 相似文献
79.
目的 介绍EDI即电子数据交换的工作原理。方法 在国际集装箱检验检疫管理中采用该项技术的优点。结果 分析国内外采用EDI管理集装箱的现状。结论 对中国检验检疫系统采用EDI技术管理国际集装箱存在的问题和解决措施进行了探讨。 相似文献
80.