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The 1980's very likely will see a major restructuring of the nation's and the world economy. In the process industries and communities that were the growth centers of previous decades will experience economic crisis. This restructuring—presaged in this country by the decaying productivity of certain basic manufacturing industries—will mean that a number of places can no longer provide sufficient income or Jobs for their people nor maintain the quality of existing public amenities. As this process of disinvestment goes forward, these communities face the challenge of finding new economic and social roles, reducing the impacts of job losses, and maintaining the quality of life within severe fiscal limits. 相似文献
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Martin Terry Karen L. Steelman Tom Guilderson Phil Dering Marvin W. Rowe 《Journal of archaeological science》2006
Peyote, a psychoactive cactus native to the Chihuahuan Desert, has been preserved from excavations at only two archaeological sites: Shumla Caves in the Lower Pecos region of southwest Texas and shelter CM-79 near Cuatro Ciénegas in Coahuila, Mexico. We determined three indistinguishable radiocarbon ages of 5160 ± 45, 5200 ± 35, and 5210 ± 35 14C years BP, yielding a mean age of 5195 ± 20 14C years BP for the three specimens from Shumla Caves. For one of the Cuatro Ciénegas specimens we obtained the first direct radiocarbon date of 835 ± 35 14C years BP. This study demonstrates the use of peyote by inhabitants of the Lower Pecos region of the Chihuahuan Desert about 6000 calendar years ago, and confirms its use by inhabitants of the Cuatro Ciénegas region of the Chihuahuan Desert in Late Prehistoric times. The Shumla Caves' specimens are composed of an aggregate of ground peyote mixed with other plant material, i.e., they appear to be manufactured peyote effigies, and are definitely not intact peyote buttons. 相似文献
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Terry McKinley 《Development and change》1993,24(3):487-510
The distribution of fixed productive assets is more unequal than the distribution of land in rural China, but the two distributions to some degree offset each other because of economic specialization and the role of rural industrial and commercial enterprises. Surprisingly, the distribution of fixed productive assets has the most equalizing effect on the distribution of rural wealth. This is partly due to the mixed ownership patterns of assets. The households with the highest values of fixed productive assets are not particularly rich, and neither are assetless households particularly poor. The distribution of fixed assets is a key reason why the distribution of wealth in rural China is actually more equal than the distribution of income, a result which is most unusual for a developing country. 相似文献
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