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11.
谭斌 《电子科技大学学报(社会科学版)》1991,(2)
通过构造李雅普诺夫函数研究了一类系数可以是无界的具有变系数的可分离变量系统的稳定性,以及带时滞系统的稳定性.并获得了一些简单的判据。 相似文献
12.
县城是县域的政治、经济与文化中心,但长期以来我国的城市化政策忽视了县城的建设与发展,在城市经济快速发展的进程中,县城在县域经济中的龙头地位没有显现,辐射带动功能也还不强,县城经济发展明显滞后。郴州是南方典型的丘陵山区,文章在实证分析其主要县城经济的基础上,对县城经济的发展思路问题进行了探讨,要加快县城经济发展,必须按照科学发展观的要求,着力解决好资源聚集、产业聚集、市场聚集、人口聚集等方面的问题。 相似文献
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14.
Kevin McDonald 《Qualitative sociology》2002,25(2):247-260
The sociological intervention is a research method developed in France by Alain Touraine in 1976 to explore social movement action. Since then it has undergone significant development, both in terms of the type of social experience explored and the broader research program framing it. Despite its importance, the intervention remains little known and virtually untested within English-language sociology. This article examines key dimensions of this research method through discussing several examples, and argues that the intervention has much to offer English-language sociologists concerned with questions of agency and reflexivity, relationship, narrative and experience. 相似文献
15.
Urban elites are increasingly addressing local social problems though policies that turn their cities into tourist destinations. Often at the heart of these policies are new publicly financed sports stadiums. Ironically, this strategy is flourishing despite near-unanimous academic criticism, and increasing public skepticism, about this approach. Our research addresses this contradiction by exploring how and why powerful decisionmakers continue supporting publicly financed stadiums. We rely on local growth coalition theory to explore this topic because it offers analytical advantages, including looking beyond local sports teams as the focal point of these initiatives, addressing the variation in the outcomes of these initiatives, and acknowledging that policymakers are predisposed toward supporting these initiatives but that this predisposition does not always result in success. 相似文献
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本文利用压缩映象原理及线性方程 Cauchy 问题的解的衰减性佶计,研究了一类非线性热传导方程 Cauchy 问题的整体解的存在唯一性及渐近性,得到当初值及非线性项满足一定条件之下Cauchy 问题的适当性。从而补充了文[3]的结果,首次指出了文[1]的结果是对半线性方程独有的。 相似文献
18.
An estimated 200,000-500,000 men, women, and children work in prostitution in the Philippines in a variety of venues, including brothels, nightclubs, pubs, massage parlors, and other legitimate entertainment establishments. Few, however, are voluntary prostitutes. Many people who work as prostitutes have been recruited from the provinces, kept in conditions similar to slavery, and forced to earn money from prostitution to pay for their transportation, board, and lodging. Many prostitutes work in urban centers and tourist resorts in the countryside. During the 1970s, then President Ferdinand Marcos promoted tourism as a major industry, effectively marketing attractive Filipinas to tourists. Sex tourism has flourished in the country ever since. Thousands of prostitutes are also located in Olongapo and Angeles, 2 cities north of Manila, from where they serve the sexual desires of US military personnel. The presence of US military personnel in the Philippines has always been associated with prostitution. The country's social hygiene centers, prostitutes in Manila and Davao, and AIDS education are briefly discussed. 相似文献
19.
基于对苏州市第四次人口普查人口年龄结构的分析,本文认为苏州市已进入人口老年型早期。文中论述了该市人口老龄化的现状、过程及趋势,剖析了过去与未来主导这一进程的不同的人口学因素,特别强调了控制人口增长对这一进程的作用。文中预测现在和今后的二十年内人口老龄化发展较缓,总抚养比较低,正届人口构成上的“黄金时期”,面临着实现经济跃升的契机。其后,人口老龄化将以空前的速度进行。抓住当前的契机也是今后从根本意义上解决好老龄人口问题所必需的。 相似文献
20.
Clara Walsh Philip O’Reilly Rob Gleasure John McAvoy Kevin O’Leary 《European Management Journal》2021,39(3):353-365
Blockchain technology has received much attention in the media and there is an increasing interest amongst organizations within financial services due to the potential benefits. As blockchain-based systems are a nascent technology, the requirements of the technology need to be understood, to allow blockchain systems to be successfully integrated within financial service organizations. There are gaps in academic research in understanding how managers evaluate the value of a blockchain-based system. This study develops a model to explain manager resistance to implementing blockchain-based systems in financial services organizations. This research advances the theoretical understanding of managers’ perspectives on blockchain-based systems and models their resistance to blockchain technology. 相似文献