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This contribution presents the progress of investigations into the wreck of the ex-slave ship James Matthews, wrecked off Western Australia in 1841. The James Matthews wreck site preserves many elements of the vessel’s structure, with the result that the basic architecture of an actual transport vehicle of the Middle Passage has been recorded in detail and can be analyzed in depth by maritime archaeologists working in tandem with naval architects. The discovery of the James Matthews wreck has made possible cross-disciplinary research of a type not previously feasible for the illegal period of slavery in the Atlantic.  相似文献   
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Research on the neurobiology and pharmacotherapy of attention-deficit/hyperactivity disorder (ADHD) has grown exponentially since 1980. A reasonable question is whether this research has improved our understanding and treatment of ADHD. This article describes relevant developments that took place roughly between 1900 and 1970. During this time, the efficacy of stimulant therapy for the disorder was established and the symptoms of ADHD were linked to many possible nervous system disorders including in the brain-stem, reticular formation, diencephalon, basal ganglia, frontal lobes, and cortex. In 1970, the catecholamine hypothesis of ADHD was proposed. It is concluded that early theories about the neurobiologic basis of ADHD anticipated core ideas of modern theory.  相似文献   
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Although the dietary importance of barnacles is recognized in Europe and elsewhere around the world, indigenous use of barnacles on the Pacific coast of North America has not been well-documented. On the Northwest Coast, most shell middens located along estuaries are dominated by clams (such as Saxidomus, Protothaca, etc.), while those on the outer coast are dominated by mussels (Mytilus californianus). At Kit’n’Kaboodle Cave in southeast Alaska, the acorn barnacle Semibalanus cariosus is unusually abundant over a 3500-year period, but is replaced by mussels over time. These results are placed within a larger geographic context to more closely examine patterns of barnacle use by First Nations of the Pacific Northwest.  相似文献   
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Twenty‐six samples from domestic assemblages of 9th–12th century Córdoba were subjected to electron microprobe analysis. The results reveal two main compositional types. The first, encountered in 13 of the samples, seems to result from the combination of plant ashes with high‐impurity sand, and has some contemporary parallels from Syria and Egypt. The second type is a lead–soda–silica glass, encountered in a relatively high proportion of the glasses (11 of the 26 sampled), possibly formed by the addition of lead metal to existing glasses and with very few known parallels. These are among a very small number of results available to date on the chemical composition of glasses from medieval Spain, and the presence of a high proportion of lead–soda–silica glasses is particularly interesting, possibly indicating a technological practice unique to, or originating in, the western Muslim world.  相似文献   
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Since the discovery of prehistoric flint mines across Europe during the nineteenth century, mining has been recognized as a central component of the Neolithic ‘package’. In the south of Britain a small group of mines date to the early fourth millennium BC, posing a problem for traditional interpretations of the Early Neolithic, as they appear a significant period of time before other Neolithic monuments. This paper will look at evidence preserved in the mines of southern England, examining whether these sites demonstrate flint‐mining techniques already practised in Continental Europe. Central to the research is a notion that complex activities, such as mining, involve long periods of trial and error before evolving into an accomplished working methodology.  相似文献   
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