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We see what we are prepared to see. Scientific research aims at breaking down this situation, analysing its subjects/objects of study from different points of view. Although multiple meanings can be derived from every question and a myriad of positions can be adopted, some are bound to be silenced by traditional criteria of authenticity. Archaeology is not an exception to this: the prevailing agenda severely impacts on our perception of what archaeological practice consists. In turn, its ethos is recreated as part of our own identity processes through our productions, whether by passively accepting monolithic standards or by dynamically proposing alternative positions in response. The study of the prehistoric and colonial periods in America can be a good test bed for surveying the influence of academic background upon the analysis of human history. Here we review two Spanish journals of American studies to discuss the different orientations of the authors according to their provenance. Plotted against the country represented by the authors, we consider his/her research as regards the object of study (ie. artefacts/written sources), its origin, chronology and, finally, the aim of the paper. We found interesting orientations in relation to focus on particular subjects, most probably conditioned by the ontology of the researchers. Although the selection is quite taxative, it may usefully complement studies carried out in the Americas.  相似文献   
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Increasing interest in the Victorians' relationships with the material world has led many critics to turn to periodical publications and, in particular, to process articles and other forms of industrial writing as sources for new insight. This article contributes to this growing body of scholarship by examining narratives of doll production. Because dolls are objects that Victorians celebrated for their imaginative potential and that were often not intended to be treated as ordinary commodities, such narratives can shed light on the intricate relationships between materiality and the imagination. In revealing the process of production, these narratives deconstruct dolls, reducing them to a collection of material parts. By some accounts, these parts are brought to life through a specialized process of manufacture that dehumanizes the workers who make them and robs them of their imaginative agency. While this deconstructive exploration can be seen as an extension of the ‘melancholy and gloom’ that Baudelaire describes as the result of children's destructive compulsion to see the insides of their toys, it could also generate new imaginative possibilities. By inviting readers to behold commodities in a state of transformation, I argue, narratives of doll production demand a more imaginative attitude towards commodities as objects shaped by their material histories.  相似文献   
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Los Naranjos is one of the most important pre-Columbian human settlements of Honduras related to the south-easternmost border of the Mayan civilization. Although the archaeological site mostly spans from 850 BC to 1250 AD, the present obsidian study was only focused on the Preclassic and Early Classic periods (Jaral, 800–400 BC and Edén, 400 BC–550 AD) where undamaged blades and/or retouched obsidian flakes are rare. In this way, the INAA analyses of 17 obsidian samples, compared with major-trace elements data of Honduran and Guatemalan obsidian sources, are mostly representative of waste flakes. Lithic artifacts of Los Naranjos such as sandstones, basalts, and quartzites come from local geological outcrops; whereas, obsidian provenance has to be searched from sources which are located within a radius up to 300 km far away. San Luis, La Esperanza, and Güinope obsidian sources are located in Honduras while the three most exploited Highland Guatemalan obsidian outcrops, which have been dominating long-distance trade in the Maya area mostly for the Classic-Postclassic periods, are San Martin de Jilotepeque, El Chayal, and Ixtepeque. An Ixtepeque provenance, for all the investigated obsidian samples of Preclassic and Early Classic periods found in the Los Naranjos Archaeological Park, was established, thus emphasizing a long-distance source (180 km). This also confirms that Ixtepeque represents the most important provenance of the obsidian artifacts found in archaeological sites of Western and Central-Western Honduras. The possible role played by some of the most important rivers of Guatemala and Honduras as waterway networks of transport was finally pointed out. New INAA chemical data from the Honduran obsidian source of La Esperanza (“Los Hoyos”, 4 samples) are also reported in this paper.  相似文献   
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Wells located in the Colombian Andean foreland often produce biodegraded hydrocarbons and relatively fresh water (total dissolved solids concentrations of 2000 mg l?1 dominate across most of the basin). The ratio of water to hydrocarbon in the produced fluids is high and has often been interpreted by explorationists and simulation engineers as being due to massive meteoric water invasion. To challenge this hypothesis, previously published and existing data are compiled here, along with 68 new water samples collected from both the surface (rivers) and subsurface (production wells), which are analyzed for major elements, salinity, and stable isotope compositions. The data indicate a mixed origin for the water, which involves formation water, meteoric water, and a third source that we interpret as being related to diagenetic processes (such as clay dehydration). Analyses of the variation of the parameters from north to south and west to east allow us to define the mixtures as coming from waters of different origins and make it possible to determine the relative contribution of each source.  相似文献   
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Paget's disease of bone (PDB) is a chronic, metabolic disease disrupting normal bone turnover and is reported as one of the most common bone diseases after osteoporosis. PDB is characterised by excessive bone remodelling resulting in bone enlargement, fragility, deformity and additional complications. Typically, PDB affects one or a few bones of the axial skeleton and is commonly recorded in older individuals (over 55 years of age) affecting more males than females. Although PDB has been reported worldwide, there is a high concentration of reported cases in the UK, with a regional hotspot in the northwest of England. This study reviews an adult male (SK463) and female (SK750) with skeletal lesions of PDB from Poulton Chapel, Cheshire. Full macroscopic and radiographic analysis has identified the skeletal distribution of PDB, with up to 75% of both skeletons affected. SK463 presents noticeable anterior bowing to both tibiae, likely the result of PDB. AMS radiocarbon dating and stable isotope analysis performed on teeth samples confirmed that both individuals' dates were medieval, had a mixed/varied diet and were local to the northwest of England. This research adds to the emerging paleopathological literature on PDB, while providing additional support for the identification of a geographical hotspot observed in contemporary populations.  相似文献   
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The industrial district and cluster literature has generated an extraordinary quantity of articles, debates and topics for discussion, and encompasses one of the most vibrant lines of research in the field of economics, geography, management and related disciplines. The literature, however, is fairly fragmented. In this paper, “bibliometric” methods are used to analyse the cluster literature published between 1957 and 2014 in order to explore “prospective” research priorities through the method of “bibliographic coupling”. Beyond focusing on foundational works in the past, this approach shifts the focus away from the practice of analysing co-citations and seminal contributions to one of looking at current and emerging trends in the literature. Using the ISI Web of Knowledge (Web of Science) as a database, an examination of two samples of 3955 and 2419 articles is made. Results reveal the existence of sub-fields of inquiry that follow their own particular research agendas, which remain distinct yet interconnected to one another.  相似文献   
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ABSTRACT We provide causal estimates of the effect of immigration on house prices and construction activity in Spain over the period 2000–2010. During this period Spain experienced spectacular swings in both immigration and the housing market. Our instrumental‐variables estimates suggest that between 2000 and 2010, immigration led to an average 1.5 percent annual increase in the working‐age population. This was responsible for an annual increase in housing prices of about 2 percent, and for a 1.2–1.5 percent increase in housing units. Overall, immigration was responsible for one quarter of the increase in prices and about half of the construction activity over the decade.  相似文献   
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