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In the central-southeastern area of Buenos Aires Province, Argentina, lies a mountainous area of low height in Tandilia that contains important outcrops of quartzite and granite. A large number of buildings are made of massive blocks of rock, some of them with a surface of over 1 ha. In addition to these completely artificial constructions are other structures that are semi-natural, having been made in places with special topographical characteristics and complemented with dry-stone walls. Scanty written documents allow us to attribute some of the constructions to an age before the permanent settlement of the Creole population. In the Tandilia Sierras these structures are commonly known as “corrales de indios” (Indian corrals). This designation involves a double prejudice with regard to function and cultural affiliation. Out of a total of 22 structures, we analyze a group of 4 that were excavated to use to review the written documents.  相似文献   
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ABSTRACT.  This study develops identification strategies utilizing spatial bidding patterns to detect possible collusion in auction markets. The identification strategy is applied to examine bidder behavior using data drawn from nearly 3,000 auctions (over 10,000 individual bids) for cutting rights of standing timber in British Columbia for the period 1996–2000. Results suggest that observed patterns of behavior are inconsistent with a model of perfectly competitive bidding. Further, changes in such patterns across geographic space are remarkably consistent with patterns of decay in the transmission of knowledge reported in previous empirical work on spillovers.  相似文献   
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This article reviews recent archaeological research on warfare in prestate societies of native North America. This survey comprises six regions: Arctic/Subarctic, Northwest Coast, California, Southwest/Great Basin, Great Plains, and Eastern Woodlands. Two lines of evidence, defensive settlement behavior and injuries in human skeletal remains, figure prominently in archaeological reconstructions of violence and warfare in these regions. Burning of sites and settlements also has been important for identifying the consequences of war and investigating more subtle aspects of strategy and directionality. Weaponry and iconography have to date provided important but more limited insights. Although considerable disparities exist between regions in the archaeological evidence for intra- and intergroup violence, all regions show a marked increase after A.D. 1000. These findings suggest that larger forces may have been responsible for escalating violence throughout North America at this time.  相似文献   
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Systematic collecting from fluvial late Pleistocene deposits from the Darling Downs, southeast Queensland, Australia, has led to the recovery of the first fossil frogs from the region, ail from the Myobatrachidae, a family of ground dwelling and burrowing frogs. The most common species recovered, Limnodynastes tasmaniensis, is extant on the Darling Downs. The fossil taxa include species whose extant populations inhabit arid zones(Limnodynastes sp. cf. L. spenceri), montane forests (Kyarranus spp.), and open woodlands (Neobatrachus sudelli), and indicate the existence of a mosaic of habitats during the Pleistocene. The absence of the Hylidae (tree frogs), a family common throughout the Darling Downs today, may be explained by a taphonomic bias that favours non-arboreal forms. Alternatively, hylids may have been rare or absent on the Darling Downs during the Pleistocene.  相似文献   
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This paper examines changes in the location of ore-based steel-makingcapacity in the U.S. over the period 1974 to 1991 using data on each of the 45 ore-based mills that were in operation in 1974. We find that the geographic ddistributions of demand and of competition from minimills and imports were important in determining where capacity reductions occurred and which plants were closed. Technology in use at the plant also affected capacity adjustment. However, we find that regional variation in prices of raw materials were notimportant factors in determining where steel-making capacity was reduced.  相似文献   
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The mesolithic of Western Europe   总被引:4,自引:0,他引:4  
Recent investigations of prefarming adaptations during the Mesolithic period in early Holocene Europe have led to significant revision of traditional views. A number of innovations and changes occur, particularly toward the end of the Mesolithic, that permit this time to be described as both dynamic and extraordinary. Permanent settlement and the use of domesticated animals, exchange, and, perhaps, cultivated plants and monumental tombs characterize a number of later Mesolithic adaptations. The transition to the Neolithic is now regarded as the result of in situ developments in most areas of Western Europe, as Mesolithic groups slowly adopted pottery, cultigens, and other characteristics of farming villagers. In this paper, questions regarding chronology, nomenclature, and the definition of terms are addressed initially. Changes in European environments at the close of the Pleistocene and during the early postglacial are considered in terms of major impacts on human adaptation. The central focus of this study is a survey of the Mesolithic in Ireland, Britain, the Netherlands, Belgium, France, Portugal, Spain, and Italy. Recent research projects in these areas are discussed in terms of new approaches and results. An overview of developments in these countries is also presented, emphasizing the transitions from the Paleolithic and into the Neolithic. Concluding remarks address future directions in Mesolithic research.  相似文献   
29.
Book reviews     
Australian Books

A. T. Yarwood: Attitudes to Non‐European Immigration (Problems in Australian History), Cassell, Melbourne, 1968, pp. 146, $2.25.

Frank Hardy: The Unlucky Australians, Thomas Nelson, Melbourne, 1968, pp. 249 + index, $4.95 (cloth), $1.95 (paper).

Stanley Brogden: Australia's Two‐Airline Policy, Melbourne University Press, 1968, pp. 235, $5.75.

C. A. Hughes, ed.: Readings in Australian Government, University of Queensland Press, 1968, pp. 504, $6.50.

Jean Spender: Ambassador's Wife, Angus and Robertson. Sydney, 1968, pp. 207, $4.25.

Arthur Huck: The Chinese in Australia, Longmans, Melbourne, 1968, pp. 117, $4.50.

M. Revelman: Sex and Politics in Australia, Publicity Press Books, Adelaide, 1968, pp. 297, $1.35.

J. A. La Nauze, ed.: Alfred Deakin: Federated Australia: Selections from Letters to the Morning Post: 1900–1910, Melbourne University Press, 1968, pp. 314, $7.20.

Overseas Books

Frank Parkin: Middle‐Class Radicalism: The Social Bases of the British Campaign for Nuclear Disarmament, Melbourne University Press, 1968, pp. 207 + vii, $4.75.

L. J. Sharpe, ed.: Voting in Cities, Macmillan, London, 1968, pp. 340, $8.80.

The Times News Team: The Black Man in Search of Power, Nelson, London, 1968, pp. 174, $4.95.

J. A. A. Stockwin: The Japanese Socialist Party and Neutralism: A Study of a Political Party and its Foreign Policy, Melbourne University Press, 1968, pp. 197 + x, $6.50.

D. A. Low, ed.: Soundings in Modern South Asian History, Australian National University Press, Canberra, 1968, pp. 399 + viii, $7.50.

Gwendolen M. Carter, Thomas Karis and Newell M. Stulyz: South Africa's Transkei: The Politics of Domestic Colonialism, London, Heinemann, 1967, pp. 184 + viii, $6.70.  相似文献   

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