检索结果-南通市图书馆

American Journal of Plant Sciences 2021年第7期12卷 994-1001页

作者： Dilovar A. Khamraeva Nargiza K. Rakhimova Eldor E. Temirov Laboratory Dendrology of the Tashkent Botanical Garden Named after Academician f.N. Rusanov Institute of Botany of the Academy of Sciences Tashkent Uzbekistan

for the first time, work was carried out on the vegetative reproduction of Weigela florida f. “Bristol Rubru” (Caprifoliaceae) was introduced into the Tashkent Botanical Garden (Uzbekistan) through green branches. As a result of the research conducted, it was noted that the vegetative reproduction possibilities of the “Bristol Ruby” form of Weigela florida were high. When placed on stimulants of two types (kornevin, heteroauxin), it became known that kornevin stimulants are effective in taking root. It was found that the effective way to multiply this form by green branches in a vegetative way—when placed on the stimulator of kornevin from the middle part of the rod, the indicators of root extraction of the cuttings were 93.3%, which is more effective than other options. When vegetative reproduction of this decorative form, it is recommended that the seedlings come to the standard state in 3 - 4 years and the root extraction indicators are high—this is its use as the second row shrubs in the case of growing on strongly saline soils in the conditions of Uzbekistan. The cultivation of green cuttings of the form in the fog showed that they are more effective than in the open ground.

关键词： form Weigela florida f. Bristol Ruby (Caprifoliaceae) Vegetative Reproduction Green Shoots Growth Regulators Biologically Active Substances Tashkent Botanical Garden Uzbekistan Introduction

不是结局的结局 2020亚洲f3锦标赛收官

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汽车之友 2020年第8期 88-91页

作者：黎明京无不详亚洲f3

当世界上大多数赛事还没有开始的时候,2020年亚洲f3锦标赛2月底已经在泰国结束了。亚洲f3是世界上第一个在冬季举办的区域性高级方程式比赛,是一次创新,也是一次尝试。还有一个没想到,由于新冠疫情,亚洲f3是全球唯一一个按时完赛的锦标... 详细信息

当世界上大多数赛事还没有开始的时候,2020年亚洲f3锦标赛2月底已经在泰国结束了。亚洲f3是世界上第一个在冬季举办的区域性高级方程式比赛,是一次创新,也是一次尝试。还有一个没想到,由于新冠疫情,亚洲f3是全球唯一一个按时完赛的锦标赛。第三赛季2020亚洲f3是从2019年12月开始的。这个赛季的时间从传统的夏季时间提前到冬季,"完全是为了适应国际汽联对超级驾照积分(Super License points)规则的改变,可以让车手在一年内参加两个积分赛事,"亚洲f3首席运营官戴维这样介绍。

关键词：国际汽联赛事首席运营官锦标赛方程式区域性

基于动态内容的缓存加速技术——f5 Web Accelerator产品技术剖析

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程序员 2010年第11期 86-89页

作者：徐超 f5北方区

今天,人类社会的信息基础设施可以说完全建立在互联网之上,从老百姓的日常生活,到企业内部的管理系统,从电子商务、媒体到政府的运作,都已经离不开互联网。互联网从诞生到现在,网站的规模不断扩大,存储和处理的数据量也远远超出了人们... 详细信息

今天,人类社会的信息基础设施可以说完全建立在互联网之上,从老百姓的日常生活,到企业内部的管理系统,从电子商务、媒体到政府的运作,都已经离不开互联网。互联网从诞生到现在,网站的规模不断扩大,存储和处理的数据量也远远超出了人们的想象,近年来又出现了对信息实时性、多媒体需求大幅增长的现象,互联网架构面临越来越大的挑战。为了应对这些困难,互联网架构领域也出现了许多新动向:LAM户等开源技术成为主流并开始承担关键任务,越来越多的网站开始采用NoSQL为代表的分布式存储和MapReduce为代表的分布式计算,Restful架构风格、消息队列、数据仓库、负载均衡等技术得到了更多关注。本期封面报道,我们特邀请了来自知名互联网企业和技术厂商的众多资深架构师,为您吹响互联网架构的集结号,全方位分析互联网架构方面的热门技术和实战经验。

关键词： Accelerator 加速技术 Web 缓存产品 Networks 打开速度页面

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遗憾的女羚羊亚洲f3锦标赛阿布扎比站

汽车之友 2020年第6期 84-87页

作者：黎明京无不详亚洲f3

2020赛季的亚洲f3锦标赛是一个跨年度的比赛,首站是2019年12月在马来西亚雪邦进行的,很快进入2020的1月就在阿联酋进行了一场背靠背的比赛。本期介绍的是1月17-18日在阿布扎比进行的第二场比赛。阿布扎比是阿拉伯联合酋长国的首都,也是... 详细信息

2020赛季的亚洲f3锦标赛是一个跨年度的比赛,首站是2019年12月在马来西亚雪邦进行的,很快进入2020的1月就在阿联酋进行了一场背靠背的比赛。本期介绍的是1月17-18日在阿布扎比进行的第二场比赛。阿布扎比是阿拉伯联合酋长国的首都,也是阿联酋长国阿布扎比酋长国的首府。阿布扎比由海边的几个小岛组成,位于阿拉伯半岛的东南部,北临红海湾,南接广袤无垠的大沙漠。

关键词：广袤无垠阿联酋阿布扎比阿拉伯半岛红海湾锦标赛跨年度马来西亚

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本田的f1之路

汽车与运动 2006年第8期 166-169页

作者：李晓非 Honda f1 Media

Honda不仅仅是世界上最大的发动机制造商,还是一家参与了几乎所有国际汽车运动项目的汽车公司。Honda一直把参加前沿竞赛作为其高科技产品的最终实验场。

关键词： f1

陶子舌战朱孝天花边内幕大逼供 Easy邀你一起探索f4TOP私密地带

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音乐世界 2002年第7期 30-31页

想倒f4的超级fans,就要一手掌握最特别,最不被别人了解的f4独家内幕! Easy想你所想,爱你所爱,与超人气f4网站***独家合作,从本期起推出“f4 TOP私密地带”专栏,为你奉献最特别,最珍贵,最有趣,最难在其他传媒上出现的f4内幕报道,让你完... 详细信息

想倒f4的超级fans,就要一手掌握最特别,最不被别人了解的f4独家内幕! Easy想你所想,爱你所爱,与超人气f4网站***独家合作,从本期起推出“f4 TOP私密地带”专栏,为你奉献最特别,最珍贵,最有趣,最难在其他传媒上出现的f4内幕报道,让你完全进入他们的私密空间,分享他们的TOP秘密。如果你拥有有关f4的TOP资讯,也欢迎通过信件和电子信箱easy2002@***和我们联系。 Do you Really Know f4? Let’s Discover!

关键词：私密空间 f4TOP 电子信箱朱孝天许慧欣

An improved method for RNA extraction from urediniospores of and wheat leaves infected by an obligate fungal pathogen, Puccinia striiformis f. sp. tritici

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Journal of Integrative Agriculture 2016年第6期15卷 1293-1303页

作者： MA Li-Jie QIAO Jia-xing KONG Xin-yu WANG Jun-juan XU Xiang-ming HU Xiao-ping State Key Laboratory of Crop Stress Biology for Arid Areas College of Plant Protection Northwest A&F University Yangling 712100 P.R.China Genetics and Crop Improvement East Mailing Research East Mailing ME19 6B J UK Erdos Ecological Environment of Career Academy Ordos 017010 P.R. China

Stripe rust, caused by Puccinia striiformis f. sp. tritici, is an important wheat disease in China, seriously threatening wheat production. Understanding the winter survival of the fungus is a key for predicting the spring epidemics of the disease, which determines the crop loss. Estimation of P. striiformis f. sp. tritici winter survival requires processing a large number of samples for sensitive detection of the pathogen in wheat leaf tissue using real-time quantitative reverse transcription PCR （qRT-PCR）. A bottleneck for the analysis is the acquisition of a good yield of high quality RNA suitable for qRT-PCR to distinguish dead and alive fungal hyphae inside leaves. Although several methods have been described in the literatures and commercial kits are available for RNA extraction, these methods are mostly too complicated, expensive and inefficient. Thus, we modified three previously reported RNA extraction methods with common and low-cost reagents （LiCI, SDS and NaCI） to solve the problems and selected the best to obtain high quality and quantity RNA for use in qRT-PCR. In the three improved methods, the NaCI method was proven to be the best for extracting RNAfrom urediniospores of and wheat leaves infected by P. striiformis f. sp. tritici, although the modified LiCI and SDS methods also increased yield of RNA compared to the previous methods. The improved NaCI method has the following advantages： 1） Complete transfer of urediniospores of P. striiformis f. sp. tritici from the mortar and pestle can ensure the initial amount of RNA for the qRT-PCR analysis; 2） the use of low-cost NaCI to replace more expensive Trizol can reduce the cost; 3） the yield and quality of RNA can be increased; 4） the improved method is more suitable for a large number and high quantity of samples from fields. Using the improved NaCI method, the amount of RNA was increased three times from urediniospores of P. striiformis f. sp. tritici compared from the extraction kit. Approximately, 1

关键词： Puccinia striiformis f. sp. tritici RNA extraction RT-PCR urediniospore mycelium

Genkwadane f-I,New Daphnane-type Diterpenes from the flower Buds of Daphne genkwa *** *** Anti-tumor Activities via lnducing Apoptosis

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Chinese Journal of Chemistry 2020年第12期38卷 1600-1606页

作者： Xuewen Hou Jingjie Chen Xuefen Hou Pinyi Gao Jinlin Wang Shaojiang Song Lingzhi Li School of Traditional Chinese Materia Medico Key Laboratory of Structure-Based Drug Design and DiscoveryMinistry of EducationShenyang Pharmaceutical University103 Wenhua RoadShenyangLiaoning 110016China College o f Pharmaceutical and Biotechnology Engineering Institute of Functional MoleculesShenyang University of Chemical Technology11 StreetShenyang Economic and Technological Development ZoneShenyangLiaoning 110142China

of main observation and conclusion Genkwadane f-I(1-4),four new diterpenes,along with four known ones(5-8),were isolated from the flower buds of *** structures including absolute configurations of 1-4 were determined based on the analysis of NMR and ECD *** compounds were evaluated for their cytotoxicities against MCf-7 and Hep3B cell lines,among which compounds 3 and 4 showed significant *** 4 exhibited the most potent activity with IC50 values of 1.33μM against MCf-7,and the IC50 values of compound 3 against MCf-7 and Hep3B were 5.54μM and 8.73μM;*** studies by Hoechst 33258 staining and Annexin V/PI analysis demonstrated that compounds 3 and 4 could induce apoptosis to exhibit anti-tumor activities.

关键词： absolute conclusion compounds

Endoplasmic Reticulum Stress Is Involved in Prostaglandin f2α-Induced Goat Luteal Cell Apoptosis via the IRE1 Pathway

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Endoplasmic Reticulum Stress Is Involved in Prostaglandin F2...