965 resultados para Gregory VII, Pope, ca. 1015-1085.


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Mode of access: Internet.

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Includes bibliographical references (p. xxiv-xxx) and index.

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Original French edition published Paris, 1860-77, v. 5-6 being edited by Aure lien de Courson.

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"Uebersetzung der Chronik Dino Compagni's" (translated from Italian): p. 158-313.

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Mode of access: Internet.

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Title vignette (printer's device); head pieces; initials.

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To an extent unusual among holders of papal office in late antiquity, we know something of the family of Gregory the Great (590-604). His father, Gordianus, was a wealthy Roman who had married a lady named Silvia, who herself had a sister named Pateria, while he had another three aunts, Aemiliana, Gordiana, and Tarsilla, the sisters of his father.(1) He also seems to have had one, and possibly a second brother.(2) We know from his writings that his three aunts on his father's side adopted a religious life in common, but they attained very different levels, for Gregory reports that, whereas Gordiana disgraced herself by marrying a farmer on her estates, Tarsilla reached the highest level of holiness. He describes his great-great-grandfather Felix, a bishop of the Roman church, appearing to her in a vision in which he showed her a mansion of great brightness and told her to come, for he would receive her there; soon afterwards, she died of fever.(3) While such details may appear sparse, they provide a basis on which we can make some general statements on the kinds of people who became pope in the period from the late fifth to the early seventh centuries; a table of these popes is appended to this paper. We shall suggest that there was a set of criteria which were met by new popes time and time again, and that these remained surprisingly constant across the period.

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The use of calcium hydroxide for scavenging zincate species is demonstrated to be a highly effective approach for increasing the electrolyte capacity and improving the performance of the zinc-air fuel cell system. A fundamental approach is established in this study to quantify the formation of calcium zincate as the product of scavenging and the amount of water compensation necessary for optimal performance. The good agreement between predicted and experimental results proves the validity of the proposed theoretical approach. By applying the results of theoretical predictions, both the electrolyte capacity and the cell longevity have been increased by more than 40%. It is also found that, using Ca(OH)2 to scavenge zincate species in concentrated KOH solutions, affects mostly the removal of zincate, rather than ZnO, from the electrolyte, whereas the presence of excess, free, mobile H2O plays a key role in dissolving ZnO and forming zincate. The results obtained in this study demonstrate that the proposed approach can widely and effectively be applied to all zinc-air cell systems during their discharge cycle.