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21.
在简要概述抵抗素生物学的基础上,对近年国内外有关运动与抵抗素的研究文献进行了回顾。注意到无论运动对抵抗素水平是否有影响,但可提高胰岛素敏感性,至于运动改善IR是否通过降低抵抗水平这一机制实现尚难以确定,且研究较少。  相似文献   
22.
本研究主要目的在于提供一种考虑场地吹填土次固结时变效应的吹填土单桩桩侧桩侧负摩阻力计算方法,该方法通过对场地吹填土进行一维场地吹填土次固结试验,获得孔隙比-时间对数(e-lgt)曲线,利用曲线拟合获得场地吹填土次固结系数及相应计算参数,计算任意时刻的场地吹填土次固结时变沉降量,获得桩侧桩侧负摩阻力中性点位置,并进一步计算得到总的桩侧桩侧负摩阻力。该研究成果可为快速成陆的吹填场地基桩工程设计和施工提供参考。  相似文献   
23.
In the conflict between Bedouin representatives and government authorities in the southern Israeli Negev, the term ‘insurgent building’ refers to the construction of buildings erected in the full expectation that they will be demolished by the Israeli police shortly thereafter. This article analyses how insurgent building is employed as a spatial practice by emerging political actors to claim contested Bedouin landownership. Importantly, insurgent building relies on the ability of media and advocacy organizations to mobilize behind the issue. Most of the relevant scholarship takes the interpretative categories advanced by these actors at face value. Following anthropological debates regarding objectification and categorization, I examine the context of a specific case of insurgent building. Emerging political actors who employ insurgent building often rely on predefined ethnic categories and clear‐cut people–state polarities. This case demonstrates the need for a more differentiated understanding of multilayered local dynamics than the one offered by mainstream linear interpretations. At a more abstract level, political actors contribute to the reproduction of the very categories against which they mobilize.  相似文献   
24.
黄忠臣  吴俊奇 《价值工程》2013,(19):315-316
分析了污泥比阻测定装置的现状,对装置进行了改进。通过实验效果表明,测定装置操作简便、压力稳定的优点,并且消除了多联测定间相互影响的问题,能够准确地测定污泥比阻值。  相似文献   
25.
This article presents the analysis of two dominant anti-consumption discourses (the voluntary simplicity discourse and the culture jammer discourse) to show the importance of anti-consumption practices in the construction of consumer identities. Specifically, two consumer-resistant identities are presented: a hero identity and a project identity. Each resistant identity is produced by, and produces, overreaching cultural discourses against consumer culture, namely resistance to exploitative consumption and resistance to positional consumption. In addition, each identity expresses resistance either in terms of political consumption for an outer change or in terms of creative consumption directed toward an inner change. By stressing the importance of hero resistant identities and project resistant identities, this article offers the concept of identity formation as central rather than peripheral to the development of consumer resistance.  相似文献   
26.
Based on a long-term ethnographic study of a group of French boxers, this article retraces the biography of one of its members. Éric was an average boxer who never truly mastered the art of dodging his opponents. He never left the ranks of amateur boxing either, although in fact he never truly hoped he would step into the limelight reserved for the very few champions who make it. His anonymous and relentless commitment to boxing was in fact filled with a different meaning that his ethnobiography brings to light. His commitment to boxing can be better understood in light of the trials he faced in “the poor life”, a life he described as flavorless, mired in unemployment and survival delinquency. Despite his repeated defeats in the ring, for him boxing was the only part of his identity that elevated his status and set him apart from those who only had the streets to hang out on. By revealing the meaning he gave to his pugilism, Éric’s ethnobiography offers a new perspective on the links between boxing, violence, and poverty. It also paves the way for exploring the dark side of a leisure activity and its struggles that extend far beyond the ring itself.  相似文献   
27.
汽车装配主要由冲压、车身焊接、喷涂、总装四大工艺组成.电阻点焊质量的好坏直接影响整车的质量,必须引起供应商的重视并严格控制点焊质量.文章根据供应商质量管理工作经验,总结了控制和提高点焊质量的实用方法  相似文献   
28.
We analyze a monopolist's incentive to innovate a new antibiotic which is connected to the same pool of antibiotic treatment efficacy as is another drug produced by a generic industry. We outline the differences of antibiotic use under market conditions and in the social optimum. A time- and state-dependent tax-subsidy mechanism is proposed to induce the monopolist and generic industry to exploit antibiotic efficacy optimally.  相似文献   
29.
目前集成技术飞速发展且集成芯片已被广泛应用 ,为了充分利用集成在一个芯片上的两个运算放大器性能互相匹配的特点 ,本文从三个方面介绍了合理使用集成运算放大器的几种技巧。其中 ,利用集成在一个硅片上的两个运算放大器的输入失调电压极其温度漂移相互补偿的原理 ,组成了失调电压极低的运算放大器 ;根据输入电阻的自举扩展原理 ,利用集成在一个硅片上的两个运算放大器组成的反向比例运算放大器具有很高的输入电阻和较高的电压放大倍数 ;根据差动放大电路的输出电压方式 ,利用集成在一个硅片上的两个运算放大器组成的差动输出运算放大器 ,最大线性输出电压范围比一个集成运算放大器的最大线形输出电压范围大一倍。且适用于不接地负载。  相似文献   
30.
This paper builds on prior research by analysing the impact of cultural factors on both price clustering and price resistance in China's stock markets. The results support the presence of cultural factors impacting on price clustering with the digit 8 showing a higher propensity for clustering and the digits 4 and 7 showing a lower propensity in the A‐share market, where stock is denominated in renminbi and traded by mainland Chinese. These results are further supported by an analysis of the B‐share market, where cultural factors have no (or less) impact on the price of Chinese stocks traded by foreign investors in US dollars (or in Hong Kong dollars). A range of measures for price resistance show the digits 0 and 5 to be significant resistance points in the A‐share market. Although digit 8 cannot be considered as a resistance point, its resistance level is highest among the remaining numbers. In conclusion, cultural factors help to explain not only price clustering in the Chinese stock markets but price resistance levels as well, albeit at a weak level.  相似文献   
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