全文获取类型
收费全文 | 2350415篇 |
免费 | 171246篇 |
国内免费 | 3330篇 |
专业分类
耳鼻咽喉 | 32071篇 |
儿科学 | 75902篇 |
妇产科学 | 62689篇 |
基础医学 | 348195篇 |
口腔科学 | 63639篇 |
临床医学 | 211357篇 |
内科学 | 457301篇 |
皮肤病学 | 51728篇 |
神经病学 | 185305篇 |
特种医学 | 88053篇 |
外国民族医学 | 489篇 |
外科学 | 353893篇 |
综合类 | 47509篇 |
现状与发展 | 12篇 |
一般理论 | 848篇 |
预防医学 | 182746篇 |
眼科学 | 54325篇 |
药学 | 175120篇 |
11篇 | |
中国医学 | 4575篇 |
肿瘤学 | 129223篇 |
出版年
2021年 | 18980篇 |
2019年 | 19542篇 |
2018年 | 27059篇 |
2017年 | 20364篇 |
2016年 | 22748篇 |
2015年 | 25646篇 |
2014年 | 36099篇 |
2013年 | 53965篇 |
2012年 | 74694篇 |
2011年 | 79416篇 |
2010年 | 47060篇 |
2009年 | 44574篇 |
2008年 | 74620篇 |
2007年 | 79480篇 |
2006年 | 80309篇 |
2005年 | 77785篇 |
2004年 | 74375篇 |
2003年 | 71699篇 |
2002年 | 69375篇 |
2001年 | 108745篇 |
2000年 | 111455篇 |
1999年 | 93508篇 |
1998年 | 26995篇 |
1997年 | 23663篇 |
1996年 | 24054篇 |
1995年 | 22720篇 |
1994年 | 20895篇 |
1993年 | 19714篇 |
1992年 | 72006篇 |
1991年 | 70076篇 |
1990年 | 68395篇 |
1989年 | 65677篇 |
1988年 | 60309篇 |
1987年 | 59131篇 |
1986年 | 55220篇 |
1985年 | 53010篇 |
1984年 | 39313篇 |
1983年 | 33396篇 |
1982年 | 19862篇 |
1979年 | 35875篇 |
1978年 | 25652篇 |
1977年 | 21232篇 |
1976年 | 20335篇 |
1975年 | 21823篇 |
1974年 | 26152篇 |
1973年 | 24803篇 |
1972年 | 23203篇 |
1971年 | 22037篇 |
1970年 | 20248篇 |
1969年 | 19316篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
In 1963, Goffman argued that forming a group based on shared stigma may provide benefits. However, there is no empirical research on whether perception that a separate, unique, coherent group exists (i.e., group entitativity) influences coping, such as educating others or secrecy, for the stigmatized individual or his or her spouse. Further, little is known about how spouses influence each other in terms of promoting the education of others about a stigmatizing condition, especially when it comes to the role of believing that stigma-based groups, to which they may both belong, exist. This study provides a step toward bridging this gap in the research by applying the label management model in efforts to understand coping for couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). This study included 50 married couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). We found that group entitativity related to those with AATD counterbalanced the influence of genetic stigma on spouses’ intentions to keep the diagnosis secret or to educate others about it. Intrapersonal and interpersonal influences appeared among spouses. Attention is needed on the power of creating groups for stigmatized persons and their relatives. Indeed, people live within a dynamic world of group entities, and multiple social identities including spousal and familial. While attention has been paid to the diffusion of stigmas to loved ones, less has been paid to the uplift of group entities for them. 相似文献
82.
83.
84.
85.
86.
87.
88.
89.
90.
E. Likotrafiti K. M. Tuohy G. R. Gibson R. A. Rastall 《International journal of food sciences and nutrition》2016,67(2):83-91
The aim of the present study was to evaluate the antimicrobial activity of two synbiotic combinations, Lactobacillus fermentum with short-chain fructooligosaccharides (FOS-LF) and Bifidobacterium longum with isomaltooligosaccharides (IMO-BL), against enterohaemorrhagic Escherichia coli O157:H7 and enteropathogenic E. coli O86. Antimicrobial activity was determined (1) by co-culturing the synbiotics and pathogens in batch cultures, and (2) with the three-stage continuous culture system (gut model), inoculated with faecal slurry from an elderly donor. In the co-culture experiments, IMO-BL was significantly inhibitory to both E. coli strains, while FOS-LF was slightly inhibitory or not inhibitory. Factors other than acid production appeared to play a role in the inhibition. In the gut models, both synbiotics effectively inhibited E. coli O157 in the first vessel, but not in vessels 2 and 3. E. coli O86 was not significantly inhibited. 相似文献