995 resultados para 812-47


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Vorbesitzer: Wilhelm Carl von Rothschild

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"Über den Begriff der Seele seit Leibniz" (GS 13, S. 515-569), Vorlesung Sommersemester 1958, Hilmar Tillack: Ausgearbeitete Nachschrift der Vorlesung von Max Horkheimer, Typoskript, 49 Blatt; "Einleitung in die Philosophie", Vorlesung Sommersemester 1959, Max Horkheimer: 1 Heft, eigene Notizen, 8 Blatt, davon 4 leer und 3 zusätzliche Blätter; Hilmar Tillack: Ausgearbeitete Nachschrift der Vorlesung Max Horkheimers, Typoskript 107 Blatt; "Die Aufklärung" (GS 13, S. 570-645), Vorlesung und Proseminar Wintersemester 1959/60, Max Horkheimer: eigenhändige Notizen, 1 Heft, 40 Blatt, davon 23 leer und 21 zusätzliche Blätter (GS 14, S. 146, 145-155); Hilmar Tillack: Ausgearbeitete Nachschrift der Vorlesung Max Horkheimers, Typoskript 70 Blatt;

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Vorbesitzer: Johannes Latomus; Andreas Weber; Georg Gambach; Bernhard Diell

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The climate evolution of the South Shetland Islands during the last c. 2000 years is inferred from the multiproxy analyses of a long (928 cm) sediment core retrieved from Maxwell Bay off King George Island. The vertical sediment flux at the core location is controlled by summer melting processes that cause sediment-laden meltwater plumes to form. These leave a characteristic signature in the sediments of NE Maxwell Bay. We use this signature to distinguish summer and winter-dominated periods. During the Medieval Warm Period, sediments are generally finer which indicates summer-type conditions. In contrast, during the Little Ice Age (LIA) sediments are generally coarser and are indicative of winter-dominated conditions. Comparison with Northern and Southern Hemisphere, Antarctic, and global temperature reconstructions reveals that the mean grain-size curve from Maxwell Bay closely resembles the curve of the global temperature reconstruction. We show that the medieval warming occurred earlier in the Southern than in the Northern Hemisphere, which might indicate that the warming was driven by processes occurring in the south. The beginning of the LIA appears to be almost synchronous in both hemispheres. The warming after the LIA closely resembles the Northern Hemisphere record which might indicate this phase of cooling was driven by processes occurring in the north. Although the recent rapid regional warming is clearly visible, the Maxwell Bay record does not show the dominance of summer-type sediments until the 1970s. Continued warming in this area will likely affect the marine ecosystem through meltwater induced turbidity of the surface waters as well as an extension of the vegetation period due to the predicted decrease of sea ice in this area.

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Fil: Yerga de Ysaguirre, M. C.. Universidad Nacional de Cuyo. Facultad de Filosofía y Letras

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