首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   387篇
  免费   27篇
林业   17篇
农学   25篇
基础科学   3篇
  60篇
综合类   35篇
农作物   20篇
水产渔业   39篇
畜牧兽医   173篇
园艺   8篇
植物保护   34篇
  2023年   3篇
  2022年   6篇
  2021年   16篇
  2020年   10篇
  2019年   12篇
  2018年   12篇
  2017年   18篇
  2016年   19篇
  2015年   15篇
  2014年   12篇
  2013年   22篇
  2012年   18篇
  2011年   17篇
  2010年   17篇
  2009年   15篇
  2008年   15篇
  2007年   13篇
  2006年   19篇
  2005年   14篇
  2004年   13篇
  2003年   10篇
  2002年   7篇
  2001年   11篇
  2000年   5篇
  1999年   4篇
  1998年   2篇
  1996年   4篇
  1995年   3篇
  1994年   2篇
  1993年   2篇
  1992年   3篇
  1991年   7篇
  1990年   3篇
  1989年   6篇
  1988年   2篇
  1987年   5篇
  1986年   5篇
  1985年   2篇
  1984年   7篇
  1983年   5篇
  1979年   5篇
  1978年   3篇
  1975年   2篇
  1972年   2篇
  1971年   4篇
  1969年   3篇
  1967年   5篇
  1966年   1篇
  1965年   1篇
  1962年   1篇
排序方式: 共有414条查询结果,搜索用时 31 毫秒
31.
32.
Rush immunotherapy has been shown to be as safe as conventional immunotherapy in canine atopic patients. Rush immunotherapy has not been reported in the feline atopic patient. The purpose of this pilot study was to determine a safe protocol for rush immunotherapy in feline atopic patients. Four atopic cats diagnosed by history, physical examination and exclusion of appropriate differential diagnoses were included in the study. Allergens were identified via liquid phase immunoenzymatic testing (VARL: Veterinary Allergy Reference Labs, Pasadena, CA). Cats were premedicated with 1.5 mg triamcinolone orally 24 and 2 h prior to first injection and 10 mg hydroxyzine PO 24, 12 and 2 h prior to first injection. An intravenous catheter was placed prior to first injection. Allergen extracts (Greer Laboratories, Lenoir, North Carolina) were all administered subcutaneously at increasing protein nitrogen units (pnu) every 30 minutes for 5 h to maintenance dose of 15,000 pnus ml-1. Vital signs were assessed every 15 minutes. Two cats developed mild pruritus and the subsequent injection was delayed 30 minutes. No changes in either cat's vital signs were noted, nor was there any further pruritus. All four cats successfully completed rush immunotherapy. Two cats developed a dermal swelling on the dorsal neck one week later. In these four cats, this protocol appeared to be a safe regimen to reach maintenance therapy. A larger sample of feline patients is needed to determine the incidence of adverse reactions and to follow the success of ASIT based upon this method of induction.  相似文献   
33.
The purpose of this 2-week, double-blinded, controlled clinical trial was to evaluate the efficacy of topical amino acid-complexed zinc gluconate formulated with boric acid (ZGB) or acetic acid (ZGA) versus a topical placebo in the treatment of yeast otitis externa in dogs. Included in the study were dogs with otitis externa and a cytopathological finding of yeast organisms in the affected ear. Ears were treated with the placebo, ZGA, or ZGB medications. Yeast counts as well as clinical appearance of the ears were monitored. Results revealed that ZGB significantly reduced the number of yeast organisms in cases of otitis externa.  相似文献   
34.
35.
36.
Topical 0.1% tacrolimus was used for treatment of localized lesions associated with 10 cases of discoid lupus erythematosus (DLE) and two cases of pemphigus erythematosus (PE) either as a sole therapy (n=2) or as an adjunctive treatment (n=10). Eight of 10 dogs with DLE and both dogs with PE were improved following 8 weeks of topical application. In six of the eight dogs that improved, other medications were discontinued. No adverse effects in clinical or laboratory parameters were noted throughout the study.  相似文献   
37.
Jansen VA  Mashanova A  Petrovskii S 《Science (New York, N.Y.)》2012,335(6071):918; author reply 918
de Jager et al. (Reports, 24 June 2011, p. 1551) concluded that mussels Lévy walk. We confronted a larger model set with these data and found that mussels do not Lévy walk: Their movement is best described by a composite Brownian walk. This shows how model selection based on an impoverished set of candidate models can lead to incorrect inferences.  相似文献   
38.
39.
40.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号