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加强流域生态核心区的景观生态脆弱性评价及驱动机制研究对于生态系统功能优化调控具有重要意义.以巢湖流域水环境保护区为主体,基于网格单元尺度,应用空间数据探索及地理加权回归(GWR)等工具,对1970-2015年间的研究区景观生态脆弱性时空演变特征及驱动机制进行分析.结果表明:1970-2015年间,巢湖流域水环境保护区内的土地景观类型表现为“两降三升”的变化趋势,其中,农地景观下降6.62%,建设用...
Urban expansion has far-reaching influences on cultivated lands, and has a serious effect on grain output and safety. However, relatively little attention has been paid to monitor cultivated land loss...
Comment on ‘America’s Peacetime Inflation: The 1970s’ by J. Bradford De Long.
In this thesis, using ōshiro Tatsuhiro’s “Meiro” (Maze, 1991) and Nakandakari Hatsu’s “Hahatachi onnatachi” (Mothers/Women, 1984) as primary sources, I have pursued two main questions about postwar Ok...
In this thesis, using ōshiro Tatsuhiro’s “Meiro” (Maze, 1991) and Nakandakari Hatsu’s “Hahatachi onnatachi” (Mothers/Women, 1984) as primary sources, I have pursued two main questions about postwar Ok...
This essay applies Janice Radway’s proposed ‘radical anthropologization’ of media audience studies to a study of historical audiencehood in everyday life, focusing on children and teenagers as audienc...
Unemployment occurs when an individual is available and seeking work but is without work. There are various causes of unemployment, but it normally relates to the economic cycle. When the economy is s...
We present ozone measurements of the Global Atmospheric Sampling Program (GASP) performed from four commercial and one research aircraft in the late 1970s to compare them with respective measurements ...
More blacks obtained white-collar jobs but fewer penetrated higher-salaried positions; mobility in higher-paid blue-collar jobs was somewhat more impressive.
This article examines trends in the average workweek and changes in the distribution of hours worked since the mid-1970s. It also focuses on estimates of annual work hours. Those figures are affected ...
对主流烟气(MSS)选择性过滤的兴趣在最近十年间重新出现。引入带选择性过滤的卷烟产品以及研究吸烟与健康的专家们呼吁使用含碳滤嘴被认为可以减少作为毒性物的汽相物组分(Laugesen 和 Fowles, 2005; Slade 和 Henningfield, 1998)。选择性过滤并非新鲜事物,有关各种选择性过滤方法的研究可追溯到1960s。其中的一个由烟草工作小组组织的关于选择性过滤的几种不同类型...
The last three decades have witnessed an unprecedented expansion of market-based reforms and the profusion of economic freedom in the international system. This shift in economic policy has sparked ...
Usinor, since 2001 a major part of Arcelor, leads the world steel market, whereas in aluminum, Pechiney was swallowed up in a 2003 merger with the giant Canadian firm, Alcan. The two French companies...
In the 1970s, dissenting young Americans bolting from what was perceived to be the unhealthy, “toxic” content of 1950s and 1960s corporate-controlled commercial foods, found refuge and likeminded comm...
Inter-firm cooperation in Spain was an entrepreneurial growth strategy that was well suited during a century of metal transformation activities. Independent regional family firms dominated this econom...

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