1,047 research outputs found

    Studies in the Hellenistic Sculpture of the Island of Rhodes

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    The study of Hellenistic sculpture is often based upon its division into local schools centering around Pergamon, Alexandria and Rhodes. The underlying premise of the present study is that if a distinctly Rhodian Hellenistic school of sculpture existed, it should be possible to define its characteristics by means of a study of the extant sculpture of known Rhodian provenance, supplemented by the preserved statue bases. If it is not possible to demonstrate recurring technical, iconographic and stylistic traits within the Rhodian material, it may be assumed that the theory of regional schools should not be applied to Rhodes. One hundred and sixteen pieces of sculpture are catalogued and discussed. They consist of sculptures in the Rhodes Archaeological Museum, and the Lindos excavation sculpture now in Copenhagen and Istanbul. The statue bases from Lindos are analyzed for the information they yield about the now missing statues they once held and about the sculptors who signed them. An attempt is then made to correlate the evidence of the extant sculpture with that of the statue bases, and to correlate the entire body of the material evidence with the literary sources. The preserved marble sculpture is characterized principally by the frequent use of non-Rhodian marble, probably of Cycladic origin, the rather small size of many pieces, the extensive and skilful use of the piecing technique, the employment of sometimes drastic undercutting for stylistic effect, and a general technical competence. A wide variety of types, stylistic devices and eclectic tendencies can be found, but several types known in multiple replicas can be isolated as specifically Rhodian creations. Most of the marble sculpture can be dated, mainly on stylistic grounds, to the late Hellenistic period. The statue bases give evidence of a continuous pattern of bronze votive and honorary portrait statuary from the fourth century into the first century of the Christian era. There is clear evidence of local sculptural production in the bronze portraits, which must have been locally produced because of their very nature, in the occasional use of local Rhodian stone, in the presence of multiple replicas of individual types, in the repetition of small stylistic and technical traits which allows some of the marble sculptures to be grouped into workshops, and in the epigraphic evidence of families of sculptors resident in Rhodes for several generations. It is concluded that the sculptors, both Rhodian and foreign, producing statuary in Rhodes were working within and reflecting general Hellenistic sculptural trends, but with a definite strain of local originality, and influenced by local technical limitations. The statuary is best understood not as a school in the artistic sense, reflecting great works mentioned in the literary sources, but as a highly competent substratum of sculpture produced for local votive, honorary and decorative needs and tastes

    Studies in the Hellenistic Sculpture of the Island of Rhodes

    Get PDF
    The study of Hellenistic sculpture is often based upon its division into local schools centering around Pergamon, Alexandria and Rhodes. The underlying premise of the present study is that if a distinctly Rhodian Hellenistic school of sculpture existed, it should be possible to define its characteristics by means of a study of the extant sculpture of known Rhodian provenance, supplemented by the preserved statue bases. If it is not possible to demonstrate recurring technical, iconographic and stylistic traits within the Rhodian material, it may be assumed that the theory of regional schools should not be applied to Rhodes. One hundred and sixteen pieces of sculpture are catalogued and discussed. They consist of sculptures in the Rhodes Archaeological Museum, and the Lindos excavation sculpture now in Copenhagen and Istanbul. The statue bases from Lindos are analyzed for the information they yield about the now missing statues they once held and about the sculptors who signed them. An attempt is then made to correlate the evidence of the extant sculpture with that of the statue bases, and to correlate the entire body of the material evidence with the literary sources. The preserved marble sculpture is characterized principally by the frequent use of non-Rhodian marble, probably of Cycladic origin, the rather small size of many pieces, the extensive and skilful use of the piecing technique, the employment of sometimes drastic undercutting for stylistic effect, and a general technical competence. A wide variety of types, stylistic devices and eclectic tendencies can be found, but several types known in multiple replicas can be isolated as specifically Rhodian creations. Most of the marble sculpture can be dated, mainly on stylistic grounds, to the late Hellenistic period. The statue bases give evidence of a continuous pattern of bronze votive and honorary portrait statuary from the fourth century into the first century of the Christian era. There is clear evidence of local sculptural production in the bronze portraits, which must have been locally produced because of their very nature, in the occasional use of local Rhodian stone, in the presence of multiple replicas of individual types, in the repetition of small stylistic and technical traits which allows some of the marble sculptures to be grouped into workshops, and in the epigraphic evidence of families of sculptors resident in Rhodes for several generations. It is concluded that the sculptors, both Rhodian and foreign, producing statuary in Rhodes were working within and reflecting general Hellenistic sculptural trends, but with a definite strain of local originality, and influenced by local technical limitations. The statuary is best understood not as a school in the artistic sense, reflecting great works mentioned in the literary sources, but as a highly competent substratum of sculpture produced for local votive, honorary and decorative needs and tastes

    A Boar Hunt by the Curtius Painter

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    Includes bibliographical reference

    The Aegisthus Painter : A Fragment

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    Includes bibliographical reference

    Accelerator measurement of the energy spectra of neutrons emitted in the interaction of 3-GeV protons with several elements

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    The application of time of flight techniques for determining the shapes of the energy spectra of neutrons between 20 and 400 MeV is discussed. The neutrons are emitted at 20, 34, and 90 degrees in the bombardment of targets by 3 GeV protons. The targets used are carbon, aluminum, cobalt, and platinum with cylindrical cross section. Targets being bombarded are located in the internal circulating beam of a particle accelerator

    Atmospheric neutrons

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    Contributions to fast neutron measurements in the atmosphere are outlined. The results of a calculation to determine the production, distribution and final disappearance of atmospheric neutrons over the entire spectrum are presented. An attempt is made to answer questions that relate to processes such as neutron escape from the atmosphere and C-14 production. In addition, since variations of secondary neutrons can be related to variations in the primary radiation, comment on the modulation of both radiation components is made

    Characterization of theThreshold for NAD(P)H:quinone Oxidoreductase Activity in Intact Sulforaphane-treated Pulmonary Arterial Endothelial Cells

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    Treatment of bovine pulmonary arterial endothelial cells in culture with the phase II enzyme inducer sulforaphane (5 μM, 24 h; sulf-treated) increased cell-lysate NAD(P)H:quinone oxidoreductase (NQO1) activity by 5.7 ± 0.6 (mean ± SEM)-fold, but intact-cell NQO1 activity by only 2.8 ± 0.1-fold compared to control cells. To evaluate the hypothesis that the threshold for sulforaphane-induced intact-cell NQO1 activity reflects a limitation in the capacity to supply NADPH at a sufficient rate to drive all the induced NQO1 to its maximum activity, total KOH-extractable pyridine nucleotides were measured in cells treated with duroquinone to stimulate maximal NQO1 activity. NQO1 activation increased NADP+ in control and sulf-treated cells, with the effect more pronounced in the sulf-treated cells, in which the NADPH was also decreased. Glucose-6-phosphate dehydrogenase (G-6-PDH) inhibition partially blocked NQO1 activity in control and sulf-treated cells, but G-6-PDH overexpression via transient transfection with the human cDNA alleviated neither the restriction on intact sulf-treated cell NQO1 activity nor the impact on the NADPH/NADP+ ratios. Intracellular ATP levels were not affected by NQO1 activation in control or sulf-treated cells. An increased dependence on extracellular glucose and a rightward shift in the Km for extracellular glucose were observed in NQO1-stimulated sulf-treated vs control cells. The data suggest that glucose transport in the sulf-treated cells may be insufficient to support the increased metabolic demand for pentose phosphate pathway-generated NADPH as an explanation for the NQO1 threshold

    Using an OPEN UMS format for document flow formalization in medicine

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    The question about construction of medical documents by means of AURRORA MIS with the use of the Open UMS format is considered in the work. The approach suggested allows data storage in the electronic form suitable for generation of required statistical reports and different researches and preserves a possibility of correct data interpretation
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