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The Swahili people have been viewed as of Persian/Arabic or Cushitic-speaking origin. Scholars have used historical and archaeological data to support this hypothesis. However, linguistic and recent archaeological data suggest that the Swahili culture had its origin in the early first centuries AD. It was the early farming people who settled on the coast in the last centuries BC who first adopted iron technology and sailing techniques and founded the coastal settlements. The culture of the iron-using people spread to the rest of the coast of East Africa, its center changing from one place to another. Involvement in transoceanic trade from the early centuries AD contributed to the prosperity of the coastal communities as evidenced by coastal monuments. More than 1500 years of cultural continuity was offset by the arrival of European and Arab colonizers in the seventeenth and nineteenth centuries AD. Le peuple Swahili a souvent été consideré comme un peuple dont la langue avait pour origine le Perse/Arabe ou le Cushite. Les chercheurs ont utilisé des donées historiques et archéologiques afin de supporter cette hypothese. Cependant l'étude linguistique de cette langue, ainsi que de nouvelles découvertes archéologiques suggérent que la culture Swahili trouve son origine au début de l'ère chrétienne. Ils furent les premiers fermiers à s'installer le long du littoral, fondant des villages côtiers, vers les premiers siécles de notre ère, les premiers aussi à adopter les techniques du fer et les techniques de navigation. La culture du fer s'étendit rapidement au reste des côtes d'Afrique de l'Est, son centre se déplaçant d'un endroit à un autre. Leur implication dans le commerce océanique contrbua à la prosperité de leur communautés côtières, mise en évidence notamment par les monuments le long du littoral. Plus de 1500 ans de continuité culturelle pris fin à l'arrivé des colonisateurs Européens et Arabes de dixseptième et dixhuitième siècles.  相似文献   
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During late Greenland Interstadial 1 (the Allerød chronozone), southern Scandinavia witnessed an abrupt cultural transition. This period marks the end of Late Magdalenian/Final Palaeolithic Federmessergruppen in the region, and the beginning of the Bromme culture. The latter is characterised by a restricted territorial range, loss of bow-arrow technology, and a general reduction in material culture complexity. Different hypotheses for the origin of the Bromme culture have been put forward, variously stressing local continuity or discontinuity. Different environmental and cultural factors have been suggested to force the observed changes, but crucially their precise timing remains elusive. Here, we review competing hypotheses for this cultural transition, and evaluate them using an audited regional database of the available 14C dates. We construct a series of Bayesian calibration models using the IntCal09 calibration curve to clarify timings of cultural continuity/discontinuity, probable duration of different techno-complexes, and relationships between environmental changes and material culture transitions. Our models suggest that the Bromme culture emerged late in the Allerød, and that the Laacher See-eruption most probably forced this cultural event horizon.  相似文献   
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This article analyzes brain scientists’ attempts to trace morality in the brain in Germany from 1930 to 1960. The debate around Karl Kleist's localization of the Gemeinschafts-Ich [community-I] in the 1930s is depicted in order to illustrate the central arguments for and against localizations of morality. The focus of this article is on the period 1936–1960 in which experts put forth specific ideas on morality's cerebral underpinnings that mirror the larger theoretical shift from strict localization doctrine to a more holistic understanding of the brain. As a result of this shift, experts avoided exact localizations of morality. Instead, they posited correlations between brain areas and morality. The analysis illustrates the dependence of neuropathological research on morality on general theories of brain functioning and marks a first contribution to the history of the neuroscience of morality for the time after 1930.  相似文献   
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The ecological tolerances of Neandertals, their ability to subsist in the dense forests of full interglacials, and their capacity to colonize northern latitudes are the subject of ongoing debate. The site of Hollerup (northern Denmark) lies at the northern extreme of the Neandertal range. Dated by various techniques to the Eemian interglacial (MIS 5e), this site has yielded the remains of several purportedly butchered fallow deer (Dama dama). Taphonomic reanalysis of the remains from Hollerup and a handful of other Eemian-aged fallow deer skeletons cast doubt on the interpretation that they were humanly modified. We place this revised conclusion into the wider context of human settlement of southern Scandinavia during the Eemian. Other claims of Neandertal presence in the region rest on candidate Middle Paleolithic artifacts, all of which derive from surface contexts. With the fallow deer material removed as a secure indicator of Neandertal settlement of Denmark during the last interglacial, this lithic material must be viewed with renewed skepticism. While ecological and/or topographic factors may have played an important role in preventing Neandertals from penetrating into peninsular Scandinavia, we caution that geological, taphonomic, research-historical, and demographic factors may have significantly distorted our picture of their occupation in this region.  相似文献   
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