全文获取类型
收费全文 | 417篇 |
免费 | 29篇 |
出版年
2022年 | 4篇 |
2021年 | 7篇 |
2020年 | 1篇 |
2019年 | 4篇 |
2018年 | 7篇 |
2017年 | 7篇 |
2016年 | 21篇 |
2015年 | 21篇 |
2014年 | 23篇 |
2013年 | 35篇 |
2012年 | 26篇 |
2011年 | 31篇 |
2010年 | 14篇 |
2009年 | 17篇 |
2008年 | 30篇 |
2007年 | 30篇 |
2006年 | 26篇 |
2005年 | 25篇 |
2004年 | 28篇 |
2003年 | 17篇 |
2002年 | 20篇 |
2001年 | 5篇 |
2000年 | 6篇 |
1999年 | 4篇 |
1998年 | 5篇 |
1997年 | 3篇 |
1996年 | 4篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1992年 | 8篇 |
1991年 | 3篇 |
1989年 | 2篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1983年 | 1篇 |
1978年 | 2篇 |
排序方式: 共有446条查询结果,搜索用时 15 毫秒
431.
Akihito Shimazu Wilmar B Schaufeli Daisuke Miyanaka Noboru Iwata 《BioPsychoSocial medicine》2010,4(1):17
With the globalization of occupational health psychology, more and more researchers are interested in applying employee well-being
like work engagement (i.e., a positive, fulfilling, work-related state of mind that is characterized by vigor, dedication,
and absorption) to diverse populations. Accurate measurement contributes to our further understanding and to the generalizability
of the concept of work engagement across different cultures. The present study investigated the measurement accuracy of the
Japanese and the original Dutch versions of the Utrecht Work Engagement Scale (9-item version, UWES-9) and the comparability
of this scale between both countries. Item Response Theory (IRT) was applied to the data from Japan (N = 2,339) and the Netherlands
(N = 13,406). Reliability of the scale was evaluated at various levels of the latent trait (i.e., work engagement) based the
test information function (TIF) and the standard error of measurement (SEM). The Japanese version had difficulty in differentiating
respondents with extremely low work engagement, whereas the original Dutch version had difficulty in differentiating respondents
with high work engagement. The measurement accuracy of both versions was not similar. Suppression of positive affect among
Japanese people and self-enhancement (the general sensitivity to positive self-relevant information) among Dutch people may
have caused decreased measurement accuracy. Hence, we should be cautious when interpreting low engagement scores among Japanese
as well as high engagement scores among western employees. 相似文献
432.
Ichthyological Research - Callogobius albipunctatus sp. nov. and Callogobius dorsomaculatus sp. nov. are described from Japan. Both species are included in the sclateri group, characterized by... 相似文献
433.
434.
Yutaka Tamaru Hideo Miyake Kouichi Kuroda Akihito Nakanishi Chiyuki Matsushima Roy H. Doi Mitsuyoshi Ueda 《Microbial biotechnology》2011,4(1):64-73
Clostridium cellulovorans, an anaerobic and mesophilic bacterium, degrades native substrates in soft biomass such as corn fibre and rice straw efficiently by producing an extracellular enzyme complex called the cellulosome. Recently, we have reported the whole‐genome sequence of C. cellulovorans comprising 4220 predicted genes in 5.10 Mbp [Y. Tamaru et al., (2010) J. Bacteriol., 192: 901–902]. As a result, the genome size of C. cellulovorans was about 1 Mbp larger than that of other cellulosome‐producing clostridia, mesophilic C. cellulolyticum and thermophilic C. thermocellum. A total of 57 cellulosomal genes were found in the C. cellulovorans genome, and they coded for not only carbohydrate‐degrading enzymes but also a lipase, peptidases and proteinase inhibitors. Interestingly, two novel genes encoding scaffolding proteins were found in the genome. According to KEGG metabolic pathways and their comparison with 11 Clostridial genomes, gene expansion in the C. cellulovorans genome indicated mainly non‐cellulosomal genes encoding hemicellulases and pectin‐degrading enzymes. Thus, by examining genome sequences from multiple Clostridium species, comparative genomics offers new insight into genome evolution and the way natural selection moulds functional DNA sequence evolution. Our analysis, coupled with the genome sequence data, provides a roadmap for constructing enhanced cellulosome‐producing Clostridium strains for industrial applications such as biofuel production. 相似文献
435.
436.
Miyake Yoichi Itakura Hikaru Takeshige Aigo Onda Hiroaki Yamaguchi Akira Yoneta Akihito Arai Kohma Hane Yulina V. Kimura Shingo 《Ichthyological Research》2019,66(1):172-176
Ichthyological Research - Japanese sea bass Lateolabrax japonicus is a euryhaline fish species. The present study aimed to elucidate their habitat use in the estuary region of the Tone River system... 相似文献
437.
438.
439.
Fukumoto Satoshi; Yamamoto Akihito; Hasegawa Tomokazu; Abe Kuniko; Takamiya Kogo; Okada Masahiko; Min Zhao Jin; Furukawa Keiko; Miyazaki Hiroshi; Tsuji Yoshiro; Goto George; Suzuki Misao; Shiku Hiroshi; Furukawa Koichi 《Glycobiology》1997,7(8):1111-1120
Several lines of transgenic mice with gangliosides GM2/GD2 synthasegene were established, and the expression levels of the transgenein brain, liver, spleen and thymus were analyzed by comparingwith those in their litter mates. Among four tissues, brainand skin showed markedly high expression levels of the transgenein Northern blotting. Particularly, transgenic mice skin showedabout 10-fold higher expression of GM2/GD2 synthase gene thanthe wild type mice skin. Therefore, alterations in the morphology,glycolipid components, and responses to the exogenous stimulationsin the transgenic mice skin were examined. Gangliosides in thetransgenic skin were dramatically converted from GM3 to GM1,whereas no morphological changes were observed. However, whenskin flap test was performed with insertion of nylon membranesunder the skin flaps, much stronger inflammatory reactions consistingof edema, marked thickness, and cell infiltration were observedin the transgenic mice compared with the wild type. Similarenhanced inflammatory reaction was also observed in the skininjected by silicon gel, and in the peritoneal reaction to theinjected casein. Main cell population in these inflammatoryreactions consisted of neutrophils, suggesting an increasedsensitivity of neutrophils to chemo-tactic factors in the transgenicmice. ganglioside glycosyltransferase GM2 GD2 synthase skin transgenic mouse 相似文献
440.