全文获取类型
收费全文 | 437篇 |
免费 | 22篇 |
出版年
2023年 | 6篇 |
2022年 | 13篇 |
2021年 | 29篇 |
2020年 | 12篇 |
2019年 | 23篇 |
2018年 | 17篇 |
2017年 | 9篇 |
2016年 | 23篇 |
2015年 | 22篇 |
2014年 | 29篇 |
2013年 | 35篇 |
2012年 | 40篇 |
2011年 | 33篇 |
2010年 | 16篇 |
2009年 | 15篇 |
2008年 | 23篇 |
2007年 | 21篇 |
2006年 | 11篇 |
2005年 | 20篇 |
2004年 | 8篇 |
2003年 | 10篇 |
2002年 | 14篇 |
2001年 | 2篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1977年 | 1篇 |
1974年 | 1篇 |
排序方式: 共有459条查询结果,搜索用时 31 毫秒
451.
452.
Nagalapura Ramakrishnappa Prasannakumar Vala Keshava Rao Nagendraiah Jyothi Sarikonda Saroja Ankanahalli Naranayanashetty Lokesha Govindaraju Ramkumar 《Journal of Applied Entomology》2023,147(2):105-115
Aphids, thrips, whiteflies, mealy bugs and mites could cause significant yield losses in horticultural crops. Many synthetic chemicals highly hazardous to non-target organisms and the environment are in use in their management. Botanicals are ideal for safe sustainable pest management by keeping synthetic chemical use at a minimum. We studied the insecticidal properties of three botanicals viz., Annona squamosa, Ricinus communis and Sapindus mukorossi seed extracts against sucking pests viz., aphids (Aphis gossypii and Aphis craccivora) on okra (Abelmoschus esculentus) and bittergourd (Momordica charantia), thrips (Scirtothrips dorsalis) on chilli (Capsicum frutescens), whiteflies (Bemisia tabaci) on eggplant (Solanum melongena), mealy bugs (Maconellicoccus hirsutus) on betel vine (Piper betle) and mites (Tetranychus urticae) on eggplant (Solanum melongena) under laboratory conditions. The bioassay showed that A. squamosa seed extract has potent insecticidal properties on all sucking pests, except T. urticae. Though S. mukorossi seed extract exhibited no insecticidal property, had a significant acaricidal property. A. squamosa and S. mukorossi seed extracts will therefore be additional botanicals for use in organic farming for managing the sucking pests effectively. 相似文献
453.
Noriaki Kawanishi Kouki Kato Masaki Takahashi Tsubasa Mizokami Yoshihiko Otsuka Atsushi Imaizumi Daisuke Shiva Hiromi Yano Katsuhiko Suzuki 《Biochemical and biophysical research communications》2013
Downhill running causes muscle damage, and induces oxidative stress and inflammatory reaction. Recently, it is shown that curcumin possesses anti-oxidant and anti-inflammatory potentials. Interestingly, curcumin reduces inflammatory cytokine concentrations in skeletal muscle after downhill running of mice. However, it is not known whether curcumin affects oxidative stress after downhill running-induced muscle damage. Therefore, the purpose of this study was to investigate the effects of curcumin on oxidative stress following downhill running induced-muscle damage. We also investigated whether curcumin affects macrophage infiltration via chemokines such as MCP-1 and CXCL14. Male C57BL/6 mice were divided into four groups; rest, rest plus curcumin, downhill running, or downhill running plus curcumin. Downhill running mice ran at 22 m/min, −15% grade on the treadmill for 150 min. Curcumin (3 mg) was administered in oral administration immediately after downhill running. Hydrogen peroxide concentration and NADPH-oxidase mRNA expression in the downhill running mice were significantly higher than those in the rest mice, but these variables were significantly attenuated by curcumin administration in downhill running mice. In addition, mRNA expression levels of MCP-1, CXCL14 and F4/80 reflecting presence of macrophages in the downhill running mice were significantly higher than those in the rest mice. However, MCP-1 and F4/80 mRNA expression levels were significantly attenuated by curcumin administration in downhill running mice. Curcumin may attenuate oxidative stress following downhill running-induced muscle damage. 相似文献
454.
455.
Deveshwari P. Khare Shiva S. Tiwari Anakshi Khare Maheshwari P. Khare 《Carbohydrate research》1980,79(2):279-286
A new disaccharide, brevobiose (1), has been isolated from the dried twigs of Sarcostemma brevistigma. The structure of 1 has been established as 4-O-(6-deoxy-2-O-methyl-β-d-allopyranosyl)-d-boivinose on the basis of chemical and spectroscopic evidence, and identification of its hydrolysis products. 相似文献
456.
457.
458.
Varshasnata Mohanty Yashwanth Subbannayya Shankargouda Patil Vinuth N. Puttamallesh Mohd. Altaf Najar Keshava K. Datta Sneha M. Pinto Sameera Begum Neeta Mohanty Samapika Routray Riaz Abdulla Jay Gopal Ray David Sidransky Harsha Gowda T. S. Keshava Prasad Aditi Chatterjee 《Journal of cell communication and signaling》2021,15(3):447
459.