排序方式: 共有54条查询结果,搜索用时 15 毫秒
1.
2.
3.
Abstract. This paper examines the initial location choice of legal employment‐based immigrants to the United States using Immigration and Naturalization Service data on individual immigrants, as well as economic, demographic, and social data to characterize the 298 metropolitan areas we define as the universal choice set. Focusing on interactions between place characteristics and immigrant characteristics, we provide multinomial logit model estimates for the location choices of about 38,000 employment‐based immigrants to the United States in 1995, focusing on the top 10 source countries. We find that, as groups, immigrants from nearly all countries are attracted to large cities with superior climates, and to cities with relatively well‐educated adults and high wages. We also find evidence that employment‐based immigrants tend to choose cities where there are relatively few immigrants of nationalities other than their own. However, when we introduce interaction terms to account for the sociodemographic characteristics of the individual immigrants, we find that the estimated effects of location destination factors can reverse as one takes account of the age, gender, marital status, and previous occupation of the immigrants. 相似文献
4.
Darren Griffin 《International Journal of Historical Archaeology》2010,14(1):156-169
One of the spaces where the interactions between Indigenous and non-Indigenous groups during the period of contact and cross-cultural
interaction took place around the world, was at missions. In Australia, missions were founded, rearranged and closed down
over a period of time in which the attitudes of Indigenous and non-Indigenous groups and official Government policy towards
contact relationships were continually changing. By analyzing the use of these contested spaces at Australian Missions by
both groups, archaeologists can begin to understand how the new relationships between these groups were negotiated, contested
and played out over time. This paper analyses the use of space, using the theoretical frameworks of the archaeologies of capitalism,
at Poonindie Mission in South Australia, which was established by the Anglican Church with support from the colonial government
and operated between 1850 and 1896. 相似文献
5.
The field system of the Wadi Faynan in southern Jordan was fed by an ancient combination irrigation system that incorporated runoff farming and diversion irrigation techniques. The hydraulic characteristics of this system were most probably designed to take advantage of the confluence of three tributary streams. A theoretical model of discharge produced by runoff is based on contemporary ground conditions and historic climate reconstructions. The design principles of the main hydraulic features are examined and velocity and discharge measurements in principal conveyance irrigation channels are reconstructed. The design of this hydraulic system took into account the environmental constraints and opportunities of the area and maximized different sources of water in the catchment using various techniques of water collection. 相似文献
6.
Uranium-series age estimates for rock art in southwest China 总被引:1,自引:0,他引:1
We report the first uranium-series age estimates for rock art in China. Calcite bracketing a paint layer was used to constrain the age of a naturalistic outline hunter-gatherer painting in the Jinsha River area of northwest Yunnan Province (southwest China). The rock paintings in this region are unique in style and content compared with other bodies of rock art in China, which are dominated by Neolithic subject matter. The minimum and maximum ages were determined using isochron techniques on multiple samples of calcite from above and beneath the paint layer. A large painted deer head was dated to between 5738 and 2050 years. This painting and underlying flowstone are superimposed on older paintings that suggest the older paintings are at least 3400 years old, if not older than 5738 years. The results indicate for the first time that Jinsha River rock art is older than other forms of rock art in the region and show that rock art likely extends back to at least the transition from the Palaeolithic to Neolithic in this part of China. 相似文献
7.
8.
9.
J. E. Sharpe 《英国考古学会志》2013,166(4):359-374
10.