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排序方式: 共有279条查询结果,搜索用时 78 毫秒
51.
Torben C. Rick Brendan J. Culleton Carley B. Smith John R. Johnson Douglas J. Kennett 《Journal of archaeological science》2011
Stable carbon (δ13C) and nitrogen (δ15N) isotope analyses of dog (Canis familiaris), island fox (Urocyon littoralis), and human bone collagen from CA-SRI-2 (AD 130–1830) on Santa Rosa Island, California provide a proxy of diet and the relationships between humans and these animals. Carbon isotopic signatures indicate that Native Americans and their dogs at CA-SRI-2 subsisted almost exclusively on marine resources, while the island fox ate primarily terrestrial foods. Nitrogen isotopes and archaeofaunal remains indicate that humans and dogs also ate higher trophic level foods, including finfishes, marine mammals, and seabirds with smaller amounts of shellfish. The CA-SRI-2 island foxes appear to have eaten higher amounts of terrestrial foods, similar to the diets observed in modern fox populations. These data generally confirm the commensal relationship assumed to exist between domesticated dogs and people, but the carbon isotopic composition of dogs is enriched ∼2‰ compared to humans. We hypothesize that the difference in carbon isotopes between dogs and humans may have resulted from a higher consumption of C3 plants with lower δ13C values by humans, or less likely from the ingestion by dogs of significant amounts of bone collagen, which is enriched by ∼4‰ over associated muscle. 相似文献
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Paul E. Lydolph Richard Johnson Julie Mintz Margaret E. Mills 《Eurasian Geography and Economics》2013,54(8):505-539
Pending the publication of new Soviet population data based on the 1979 census, to be hald next January, the author reviews population trends in the 1970's. After a steady decline through much of the Soviet period, birth rates and death rates have stabilized for the country as a whole, although marked regional differences continue. An unexplained rise in infant mortality and an apparent reduction of life expectancy have led to the suppression of data in these areas. No ready explanation is found for a recent increase in female fertility and age-specific death rates. Abnormalities in the age-sex structure, resulting from past population catastrophes, continue to persist and indicate future labor shortages. Geographical differences in population growth rates, resulting from differential rates of natural increase and migration, are analyzed. Urbanization, a typical phenomenon of the Soviet period, continues apace, with the biggest increases in large cities despite a policy designed to discourage big-city growth. A crucial question is the optimal disposition of the growing labor pool in the Central Asian region-whether to foster local employment or encourage migration from Central Asia to labor deficit areas elsewhere in the Soviet Union. 相似文献
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Historical Archaeology - By at least 1770, settlers of northern New Jersey appropriated the production of Indigenous shell beads, including iconic styles of wampum and hair pipes. At that time,... 相似文献
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Thomas Johnson Westropp 《Folklore》2013,124(4):305-319
CHIUS VINCTA OR THE OCCUPATION OF CHIOS BY THE TURKS (1566) AND THEIR ADMINISTRATION OF THE ISLAND (1566–1912). DESCRIBED IN CONTEMPORARY DIPLOMATIC REPORTS AND OFFICIAL DISPATCHES. Edited by PHILIP P. ARGENTI, with a preface by SIR STEPHEN GASELEE. Pp. cclxxxii + 264. Cambridge University Press. 25s. Reviewed by J. H. Hutton. A JERSEYMAN AT OXFORD. By R. R. MARETT. Pp. xi+346. Oxford University Press (Humphrey Milford). 15s. Reviewed by J. H. H. THE LAND OF THE RAINBOW, POLAND AND HER PEOPLE. By VIOLET MASON. Pp. 322. Minerva, London. 1941. Reviewed by J. H. H. IT HAPPENED IN HAMPSHIRE. Items of interest compiled and arranged by W. G. BEDDINGTON and E. B. CHRISTY. 8vo. 8½x5? in. Pp. 24. Price is. Published by The Hampshire Federation of Women's Institutes, 66a High Street, Winchester. Reviewed by P. J. Heather 相似文献
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We analyze the Supreme Court nomination process in order to provide a general explanation of presidents' propensity to win confirmation battles even in the face of an ideologically hostile Senate. The analysis serves two purposes. First, we argue that employing the conventional measure of the Senate's power to constrain the president's choice of nominees–the median senator–provides an inaccurate picture of this process. In its stead we argue that the filibuster pivot (or the sixtieth most liberal or conservative senator) more accurately captures the Senate's power over the president (Krehbiel 1998). Second, we argue that even under this more stringent spatial constraint, presidents still have the ability to win most confirmation battles with the Senate. Indeed, our results indicate that presidents often overcome situations where the Senate should reject their nominees, or where it should force them to make a less desirable choice, by invoking political capital. 相似文献
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