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This paper explores the influence of visual sources on Roger N. Shepard's 1971 mental rotation experiments and the centrality of ambiguity as one of his experimental and artistic concerns. Sources include Shepard's statements about ambiguity as expressed in the book, Mind Sights, and a recent interview. Parallel investigations of ambiguity by the contemporary artists Al Held and Robert Smithson are considered. Shepard utilized a wide range of visual sources while formulating his experimental design, namely Necker cube illusions, hypnopompic images, René Magritte, and M.C. Escher. In addition, he drew upon key art historical theses of the time, such as Ernst Gombrich's theories about schemas. For Shepard as for Gombrich, the world of appearances is a world of ambiguity. 相似文献
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Paul Goldberg Christopher E. Miller Solveig Schiegl Bertrand Ligouis Francesco Berna Nicholas J. Conard Lyn Wadley 《Archaeological and Anthropological Sciences》2009,1(2):95-122
Micromorphological analysis of sediments from the Middle Stone Age site of Sibudu Cave, KwaZulu-Natal, South Africa, provides
a high-resolution sequence and evidence of site formation processes of predominantly anthropogenic deposits. This methodology
allows for a detailed interpretation of individual anthropogenic activities, including the construction of hearths and bedding
and the maintenance of occupational surfaces through the sweep out of hearths and the repeated burning of bedding. This analysis
also provides a context for evaluating other studies at the site relating to magnetic susceptibility, paleobotany, paleozoology,
anthracology, and studies of ochre. 相似文献
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Amos Frisch 《SJOT: Scandinavian Journal of the Old Testament》2013,27(1):77-92
Abstract 2 Samuel 5,12 is shown to be important. It does not merely repeat verse 10 and is not an addendum that is poorly integrated into the literary unit. Its importance is that it presents David's inner world: he ascribes his success to the Lord, Who acts for the benefit of His people. This alludes to two aspects of the monarchical covenant in Israel: king-the Lord and king-people. In both realms David is perceived as embodying the book's criteria for the ideal leader. In addition, the language of the verse is examined against the background of the entire book of Samuel. The verse suggests that David is Saul's successor (whereas verse 10 suggests that he is Samuel's heir). 相似文献
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Robert A. Goldberg 《Historical methods》2013,46(4):155-156
Abstract The authors argue that the publication of any new historical data series requires a formal estimate of its margins of error. We show how overall margins of error may be calculated for the standard forms of historical data series from information on the reliability of its components. The presentation of such margins of error should be transparent, allowing readers both to judge the estimate and to test the implications of applying different standards. An illustration is provided for Hoffmann's industrial output series for Britain, 1780–1831. The calculations emphasize the value of this approach to the recent debate on measuring growth rates during the British Industrial Revolution and suggest its merits more generally. 相似文献