952 resultados para Miniature painting
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This dissertation examines the gentleman-scholar depicted at home in Dutch seventeenth-century genre paintings, focusing primarily on art created in the Northern Netherlands from the 1630s through the 1670s. The methodological approach is art historical but also pertains to history of architecture, history of dress, and gender studies. Employing the framework of the 'Ages of Man', this thesis investigates three related pictorial themes: the student, the scholar in his prime, and the aged scholar. Variations of male scholarly figures and the accoutrements of the study have a long history in Europe. Prototypical sources include religious history paintings of learned hermit-saints; artistic interest in the allegorical Saturnine persona; portraits of famous scholars; and the iconography of scholarly melancholy implied through vanitas allusions in portraiture and genre paintings. While the majority of Dutch genre paintings pertain to themes of women, male domestic routines form a small but important subset of this imagery and have not been studied. By the 1640s, this subject is readily identified by his setting, clothing, and actions. The ubiquity of scholarly attributes, such as books and globes, paired with the wearing of scholarly robes suggest the merits of intellectual curiosity and the privileges of studying as a pastime and designating a room as a study (studeerkamer). Distinct themes in genre also imply the challenges and rewards of scholarly activity pursued in concert with masculine civic and familial duty. Central to the development of this pictorial theme were: the innovative treatment of learned men by Rembrandt and his circle; the fijnschilder subjects of Dou; and the practice of amateur study by elite men, as suggested by the art of Vermeer. As this dissertation reveals, this convention did not grow to be consistent across the Northern Netherlands, nor was artistic interest limited to university towns. Rather, the larger relevance of scholars in Dutch society is evident in visual and literary sources. The domesticity of this figure in genre painting suggests that scholars mediated between an active and a contemplative life. Societal respect was garnered for scholars through their balance of familial and social duties with the honorable pastime of scholarly leisure.
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First one of a two-part analysis on the influence of the Classical Tradition on a favourite theme along the Dutch painters of the Golden Age, The doctor’s visit or The lovesick maiden, especially in the Leiden artist’s production, Jan Steen (1626-1679).
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Thesis (Ph.D.)--University of Washington, 2016-06
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When thinking what paintings are, I am continually brought back to my memory of a short sequence in Alfred Hitchcock’s Vertigo. In the scene, Kim Novak’s Madeleine is seated on a bench in an art gallery. She is apparently transfixed by a painting, Portrait of Carlotta. Alongside James Stewart, we watch her looking intently. Madeleine is pretending to be a ghost. At this stage she does not expect us to believe she is a ghost, but simply to immerse ourselves in the conceit, to delight in the shudder. Madeleine’s back is turned away from us, and as the camera draws near to show that the knot pattern in her hair mirrors the image in the portrait, I imagine Madeleine suppressing a smile. She resolutely shows us her back, though, so her feint is not betrayed. Madeleine’s stillness in this scene makes her appear as an object, a thing in the world, a rock or a pile of logs perhaps. We are not looking at that thing, however, but rather a residual image of something creaturely, a spectre. This after-image is held to the ground both by the gravity suggested by its manifestation and by the fine lie - the camouflage - of pretending to be a ghost. Encountering a painting is like meeting Madeleine. It sits in front of its own picture, gazing at it. Despite being motionless and having its back to us, there is a lurching sensation the painting brings about by pretending to be the ghost of its picture, and, at the same time, never really anticipating your credulity.
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Background: Several materials have been used for tissue engineering purposes, since the ideal matrix depends on the desired tissue. Silk biomaterials have come to focus due to their great mechanical properties. As untreated silkworm silk has been found to be quite immunogenic, an alternative could be spider silk. Not only does it own unique mechanical properties, its biocompatibility has been shown already in vivo. In our study, we used native spider dragline silk which is known as the strongest fibre in nature. Methodology/Principal Findings: Steel frames were originally designed and manufactured and woven with spider silk, harvesting dragline silk directly out of the animal. After sterilization, scaffolds were seeded with fibroblasts to analyse cell proliferation and adhesion. Analysis of cell morphology and actin filament alignment clearly revealed adherence. Proliferation was measured by cell count as well as determination of relative fluorescence each after 1, 2, 3, and 5 days. Cell counts for native spider silk were also compared with those for trypsin-digested spider silk. Spider silk specimens displayed less proliferation than collagen-and fibronectin-coated cover slips, enzymatic treatment reduced adhesion and proliferation rates tendentially though not significantly. Nevertheless, proliferation could be proven with high significance (p<0.01). Conclusion/Significance: Native spider silk does not require any modification to its application as a biomaterial that can rival any artificial material in terms of cell growth promoting properties. We could show adhesion mechanics on intracellular level. Additionally, proliferation kinetics were higher than in enzymatically digested controls, indicating that spider silk does not require modification. Recent findings concerning reduction of cell proliferation after exposure could not be met. As biotechnological production of the hierarchical composition of native spider silk fibres is still a challenge, our study has a pioneer role in researching cellular mechanics on native spider silk fibres.
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No abstract available.
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The natural compliance and force generation properties of pneumatic artificial muscles (PAMs) allow them to operate like human muscles in anthropomorphic robotic manipulators. Traditionally, manipulators use a single PAM or multiple PAMs actuated in unison in place of a human muscle. However, these manipulators experience efficiency losses when operated outside their target performance ranges. The unidirectional actuation behavior of a miniature PAM bundle and bidirectional actuation behavior of an antagonistic pair of miniature PAM bundles are characterized and modeled. The results are used to motivate the application of a variable recruitment control strategy to a parallel bundle of miniature PAMs as an attempt to mimic the selective recruitment of motor units in a human muscle to improve the operating efficiency of the actuator. Additionally, the fabrication and quasi-static testing results for PAMs assembled from candidate space qualified bladder and braided sleeve materials for use in space robotics are assessed.