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11.
Neil S. Davies Ivan J. Sansom Robert S. Nicoll Alex Ritchie 《Alcheringa: An Australasian Journal of Paleontology》2013,37(4):553-569
The Stairway Sandstone is a 30–560 m thick succession of Middle Ordovician siliciclastic sedimentary rocks within the Amadeus Basin of central Australia, deposited in the epeiric Larapintine Sea of northern peri-Gondwana. The Stairway Sandstone is significant as one of only two known Gondwanan successions to yield articulated arandaspid (pteraspidomorph agnathan) fish. Herein we use the ichnology of the Stairway Sandstone to reveal insights into the shallow marine habitat of these early vertebrates, and compare it with that of other known pteraspidomorph-bearing localities from across Gondwana. The Stairway Sandstone contains a diverse Ordovician ichnofauna including 22 ichnotaxa of Arenicolites, Arthrophycus, Asterosoma, Cruziana, Didymaulichnus, Diplichnites, Diplocraterion, ?Gordia, Lockeia, Monocraterion, Monomorphichnus, Phycodes, Planolites, Rusophycus, Skolithos and Uchirites. These ichnofauna provide a well-preserved example of a typical Ordovician epeiric sea assemblage, recording the diverse ethologies of tracemakers in a very shallow marine environment of flashy sediment accumulation and regularly shifting sandy substrates. New conodont data refine the age of the Stairway Sandstone to the early Darriwilian, with ichnostratigraphic implications for the Cruziana rugosa group and Arthrophycus alleghaniensis. 相似文献
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Ivan Sascha Sheehan PhD 《Domes : digest of Middle East studies》2013,22(2):229-261
Scholars have shown that media framing has a powerful effect on citizen perception and policy debates. Research has provided less insight into the ability of marginalized actors to promote their preferred frames in the media in a dynamic political context. The efforts of an exiled Iranian opposition group to get its name removed from official terror lists in the United States, United Kingdom, and EU provides a valuable platform to examine this problem. Using content analysis, I explore how the group promoted its frames in the opinion sections of major world news publications over nine years (2003–2012). I then examine the extent to which journalists aligned to its frames, as opposed to rival official frames, over time in the larger arena of news. The results support research showing that by nurturing small opportunities, marginalized political actors can expand media capacity and influence, but these effects are mediated at least in part by critical or focusing events that make rival frames less salient. The study sheds light on the complex relationship between activists, the government, and the media. It has implications for the ability of marginalized political actors to get their frames into public discourse. It also has implications for terror tagging and media coverage of other controversial issues. 相似文献
13.
Richard Ivan Jobs 《Modern & Contemporary France》2018,26(1):1-14
Philippe Gloaguen and the ‘Routard Generation’ reveal a variety of themes in the cultural history of 1968 and its legacy in France regarding the intersection of travel mobility and generational identification. Mobility was and remains a central motif in the mythology of 1968. The way the cultural phenomenon of French backpacker travel has come to be understood there is bound up with ideas about 1968 and generation. The cultural association of 1968 with French travel and mobility helped create a broad generational cohort able to incorporate those who were not politically involved, or at best, were on the margins of protest activity. The self-proclaimed soixante-routards conflate travel mobility with a generational construct centred on 1968 as a means to render their personal travel with political meaning. 相似文献
14.
Florencia Gordón S. Ivan Perez Adam Hajduk Maximiliano Lezcano Valeria Bernal 《Archaeological and Anthropological Sciences》2018,10(6):1347-1358
The goal of this paper is to assess the variation in the proportional contribution of diverse resources to the diet of human populations from northwest Patagonia (Argentina) throughout the Middle-Late Holocene. Particularly, we assessed the variation among three geographic areas and two periods. We first estimated the expected proportions of terrestrial animals and plants and aquatic resources for each area according to the Binford’s frames of references approach. A Bayesian mixing method was then applied to calculate the proportion of plants and animals in the diets from stable isotopes (δ13C and δ15N) of human bone collagen. The isotope values suggest that the composition of diets differed spatially and temporally. Diets of South Mendoza were mainly composed of terrestrial animals (Rhea-Lama and rodents) with a greater incorporation of C3 plants towards the later Late Holocene; in North Neuquén, Rhea and Lama represent a proportion of 0.84 of the diet consumed; and finally, the sample of Center Neuquén is the only one with high values of Araucaria in the diet. The isotopic values obtained for the three studied areas did not fit to the expectations of Binford’s model, North Neuquén being the area that departs most from the predicted proportions of terrestrial animals and plants and aquatic organisms in the diet. These findings open up new questions about the local conditions that influenced regional variation in the diet of prehistoric hunter-gatherers. 相似文献
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Lloyd Weeks Charlotte Cable Kristina Franke Claire Newton Steven Karacic James Roberts Ivan Stepanov Hélène David‐Cuny David Price Rashad Mohammed Bukhash Mansour Boraik Radwan Hassan Zein 《Arabian Archaeology and Epigraphy》2017,28(1):31-60
In September 2014, the University of New England (UNE), Australia, began a three‐year programme of archaeological fieldwork and post‐excavation analyses focused on the site of Saruq al‐Hadid. In this paper, we present the initial results of our current field and laboratory research particularly related to site stratigraphy and formation processes, relative and absolute chronology, and the preliminary results of various programmes of post‐excavation analyses including archaeobotanical, zooarchaeological, ceramic and archaeometallurgical studies. These studies provide new data to build into the archaeological understanding of Saruq al‐Hadid that has, to date, focused largely on intensive excavation. 相似文献
17.
Social-democratic parties face a dilemma between the universalist ethos of their socialist tradition and the nationalism that they share with the other political actors of the state where they act. In this paper, we examine comparatively the position of the Spanish party Partido Socialista Obrero Español (PSOE) and the Catalan party Esquerra Republicana de Catalunya (ERC) on three political debates that pertains to the link between welfare and identity in Spain. We show how these parties experience opposite tensions between nationalism and the universalism of their left-wing ideology. Whereas ERC calls for a withdrawal from the Spanish system of social security, the PSOE advocates imposing on Catalonia a symmetric form of solidarity with the rest of Spain, despite recognising the region's different identity. Above all, both parties take identity for granted as a pre-political factor that ‘naturally’ justifies differential treatment, according to ERC, or equalising federalism, in the case of the PSOE. 相似文献
18.
Ivan Etzo 《Journal of regional science》2011,51(5):948-966
ABSTRACT This study investigates the determinants of interregional migration flows in Italy in the light of the upsurge occurred in 1996, after two decades of decreasing internal migration rates. The fixed‐effect vector decomposition estimator (FEVD) is applied to a gravity model using bilateral migration flows for the period 1996–2005. It is shown that the FEVD improves the estimates with respect to the traditional panel data estimators. The GDP per capita and the unemployment rate appear to be the key determinants whose changes push migrants out from their regions and direct them to “better off” destinations. Migrants leaving the regions in the Center‐North respond differently to the push and pull forces compared to southern migrants. The dynamic model provides evidence for the presence of social networks, which in this analysis take place for each pair of regions. 相似文献
19.
The bioarchaeological record of South America is characterized by the high frequency of individuals with a variety of cranial deformations concentrated in three areas (North-West, Central-West and South) of this subcontinent. The general purpose of this paper is to study the variation in artificial cranial deformation in several regions of Central-West and South of South America. Cranial variation related to artificial deformation of human cranial remains is analyzed by means of geometric morphometrics and multivariate statistic methods. The results of this work show that there are no large differences in variation among states, chiefdoms and bands of hunter-gatherers. The pattern of variation observed in cranial deformation among regions can be interpreted principally according to the chronological and spatial distribution of the cranial samples analyzed. 相似文献
20.
Ivan Head 《The Journal of religious history》2004,28(3):240-259
This paper explores Martin Hengel's thesis that the Gospel of Mark was written in Rome in the year 69. Hengel was convinced that more should be made of the Year of Four Emperors, a period of civic chaos and warfare that ensued on the death of Nero. The paper analyses the role of the emperor as a potent force in the religious, civic, political, and military unity that is Rome and her gods; the all-pervasive Jerusalem Temple; and Josephus's return to Rome in 71 and the publication of The Jewish War. The paper shows that these themes overlap with this Gospel and are at least consistently supportive of the claim that Rome is the place of composition. The paper refers positively to a recent publication by Brian Incigneri that stresses the critical role of the Triumph of Vespasian and Titus in 71 as the catalytic event for Mark. 相似文献