共查询到20条相似文献,搜索用时 46 毫秒
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关于白居易《长恨歌》的主题思想,学术界历来争论不休。概括起来,有讽谕说、爱情说、双重主题说三种观点。本文着重联系作品的创作背景、作者在创作过程中的情感变化、作品的客观效果、作者创作之后的态度等探讨《长恨歌》的主题思想,得出《长恨歌》以歌颂美好爱情为主题的结论。 相似文献
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对实践中大规模抢注商标的现象进行了分析与研究。讨论了这种现象所带来的负面影响,提出应在坚持原有的注册取得商标专用权的原则下,通过对商标注册申请人进行必要的限制以及对抢注商标行为进行必要的制裁和惩罚等手段,加强这一制度所应体现的公正公平以及对合法拥有商标权益的及时保护。 相似文献
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Valerie A. J. Frissen 《The Information Society》2000,16(1):65-75
In the Netherlands, many women have entered the labor market in the last two decades. This development - among other social changes - has resulted in substantial shifts in the time that Dutch people spend on paid labor and "caring tasks" on the one hand and leisure activities on the other hand. This task combination has caused serious time pressure and coordination problems among dual-income families with children. Therefore, it is not an exaggeration to label this stage of life as the "rush hour of life". In this article the findings of a small-scale qualitative case study among these "busy" households are presented. The objective of this study is to describe and analyze patterns of acceptance and use of information and communication technologies (ICTs), especially telecommunication technologies, in the context of the everyday life of these households. The question is raised whether ICTs can be a solution to time pressure and coordination problems. Theoretically, the research is rooted in a user-oriented perspective toward technological innovation, developed in the United Kingdom by Silverstone, Haddon, and others, which understands the incorporation of ICTs into the everyday life of households as a "domestication process". A paradoxical conclusion of this study is that ICTs are not explicitly perceived as solutions to the communication and coordination problems these households experience in everyday life, although they are being used for solving these problems. This ambiguity seems characteristic for the acceptance of ICTs in everyday life. The domestication concept is a useful concept to describe these ambivalent and paradoxical processes of (non)acceptance and use. 相似文献
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以来自宁波高桥种质资源圃中的15个蔺草样品为材料,进行了基因组DNA提取条件的优化研究,结果表明:加入Proteinase K后,DNA的浓度普遍在600μg/mL以上,A260/A280值在1.8-2.0之间,浓度随加入量的增加呈递增状态,在加入量为6μL时提取效果最好。Proteinase K水浴温度与时间的条件优化试验中发现,最佳的水浴温度为65℃,水浴时间以30 min,离心条件在转速10,000 r/min,时间8 min时获得的DNA质量较好。加入RNase A后,A260/A280值在1.8-2.0之间,随加入量的增加纯度也增大,加入量以3μL为宜;RNase A水浴时间在10 min时A260/A280值普遍最接近1.8,浓度也较高。应用所获得的优化提取条件对宁波市高桥镇种植的15个蔺草样品进行提取DNA测试,电泳结果表明所有品种都出现了特异性DNA条带。由此,在进行蔺草实生苗基因组DNA提取时,建议采用如下条件:Proteinase K加入量6μL,水浴温度为65℃,时间为30 min;第一步DNA沉淀的离心转速为10,000r/min,离心时间为8 min。RNase A加入量3μL;RNase A水浴时间10 min。 相似文献
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做题的目的是培养能力,做题也是寻找自己的弱点和不足的有效途径。同时错题也是一种可利用的教学资源,合理地开发错题资源,对学生改进学习方法和提高做题技能大有裨益。本文从建立错题集的意义、如何建好错题集、怎样用好错题集等几个方面展开论述。 相似文献
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Lachmund J 《Endeavour》2007,31(2):78-82
The division of Berlin in the aftermath of World War II and the erection of the Wall in 1961 were not only of tremendous political, social and cultural significance, but also had implications for the way in which science was undertaken in this city. For ecologists living and working in the enclosed city part of West Berlin, the lack of accessible countryside motivated them to focus their fieldwork increasingly on urban sites and, thereby, to engage themselves in one of the most significant attempts to develop an ecology of the city. 相似文献