981 resultados para 320.472
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Henoch Yalon
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bearb. und hrsg. vom Vorstand der Deutschen Metallarbeiter-Verbandes
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2 Seiten
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1 Brief von Eleanor Wilson MacAdoo an Max Horkheimer, 04.09.1942; 1 Brief von Walter J. Mahoney an Max Horkheimer, 27.03.1941; 6 Briefe zwischen Josef Maier und Max Horkheimer, 1935, 1936; 8 Briefe und 2 Beilagen zwischen Kurt Mandelbaum und Max Horkheimer, 1935, 1936; 1 Brief von Ernest Fred Manfred an Max Horkheimer, 10.07.1948; 1 Brief von Gertrud Marcuse an Max Horkheimer, 31.03.1937; 52 Brief und Beilage zwischen Sascha Marcuse, Ludwig Marcuse und Max Horkheimer, 1936-1943; 1 Brief von Juliette Favez an Sascha und Ludwig Marcuse, 09.09.1937; 2 Briefe von Max Horkheimer an Hendrik W. van Loon, 1940, 1941; 1 Brief von Bruno Frank an John Simon Guggenheim Memorial Foundation New York, 03.12.1940; 3 Briefe zwischen Paul Klapper und Max Horkheimer, 30.08.1939, 1939; 1 Brief von Max Horkheimer an Collector of Customs New York, 04.04.1939; 3 Briefe zwischen Paul Marcuse und Max Horkheimer, 06.06.1939, 1939; 1 brief von Friedrich Pollock an Leon C. Marshall, 05.05.1941; 1 Brief von Max Horkheimer an Marsten, 17.04.1939; 6 Briefe und 1 Beilage zwsichen A. Mansloff und Max Horkheimer, 1941; 1 Brief von Henrik Grossmann an Paul Mettick, 30.10.1935; 11 Briefe zwischen Paul Mattick und Max Horkheimer sowie Briefwechsel mit der John Simon Guggenheim Memorial Foundation, New York, 1935-1937; 4 Briefe zwischen der John Simon Guggenheim Memorial Foundation, New York und Max Horkheimer, 1937, 1938; 1 Brief von Henryk Grossmann an Paul Mattick, 30.10.1935; 2 Briefe zwischen Henryk Grossmann und Max Horkheimer, 15.10.1935, 02.02.1937; 1 Brief von Edith Mautner an Max Horkheimer, 15.06.1944; 2 Briefe zwischen Carl Mayer und Max Horkheimer, 23.10.1940, 22.11.1940; 5 Briefe zwischen Gustav Mayer und Max Horkheimer, 1940 sowie 1 Brief von Ulrich Mayer an Gumperz, 07.06.1940;
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2 Briefe zwischen F. Champion Ward und Max Horkheimer, 1967; 1 Brief von Max Horkheimer an John Slawson, 1962; 21 Briefe zwischen dem Direktor der Stadt- und Unibibliothek Frankfurt am Main Professor Clemens Köttelwesch und Max Horkheimer, 1956-; 1 Brief an Hertha Dembitzer, 1974; 1 Brief von Hertha Dembitzer, 1974; Schenkungsbrief 1956; Hertha Dembitzer: 2 Briefe zwischen Hertha Dembitzer und Clemens Köttelwesch, 1974;
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u.a.: Artikel von Professor Max Müller in der englischen Zeitung "Times"; Übersetzung von Kant ins Englische; Darwinismus; Wilhelm Gwinner; Arthur Schopenhauer; Professor Noiré; David Asher; Helen Zimmern; Immanuel Kant;
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Briefwechsel zwischen Theodor W. Adorno, Gretel Adorno und Max Horkheimer, 1949-1954; Briefwechsel zwischen Alice Maier uind Max Horkheimer; Briefwechsel zwischen dem Hessischen Minister für Erziehung und Volksbildung und Theodor W. Adorno sowie Max Horkheimer; 1 Brief von Alice Maier an Leo Löwenthal; 1 Brief von Alice Maier an die Bank of America in Los Angeles, 29.10.1953; 3 Briefe zwischen Marie Jahoda und Theodor W. Adorno, 1953;
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Familiennachrichten
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Frankfurter Latern: Produktion
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Vorbesitzer: Hans (Johannes) von Sorgenloch genannt Gänsfleisch (Surgenloch dictus Ginßfleiß)
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The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal aggregates underneath sea ice have been described sporadically but the frequency and distribution of their occurrence is not well quantified. We used upward looking images obtained by a remotely operated vehicle (ROV) to derive estimates of ice algal aggregate biomass and to investigate their spatial distribution. During the IceArc expedition (ARK-XXVII/3) of RV Polarstern in late summer 2012, different types of algal aggregates were observed floating underneath various ice types in the Central Arctic basins. Our results show that the floe scale distribution of algal aggregates in late summer is very patchy and determined by the topography of the ice underside, with aggregates collecting in dome shaped structures and at the edges of pressure ridges. The buoyancy of the aggregates was also evident from analysis of the aggregate size distribution. Different approaches used to estimate aggregate biomass yield a wide range of results. This highlights that special care must be taken when upscaling observations and comparing results from surveys conducted using different methods or on different spatial scales.
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The amount of solar radiation transmitted through Arctic sea ice is determined by the thickness and physical properties of snow and sea ice. Light transmittance is highly variable in space and time since thickness and physical properties of snow and sea ice are highly heterogeneous on variable time and length scales. We present field measurements of under-ice irradiance along transects under undeformed land-fast sea ice at Barrow, Alaska (March, May, and June 2010). The measurements were performed with a spectral radiometer mounted on a floating under-ice sled. The objective was to quantify the spatial variability of light transmittance through snow and sea ice, and to compare this variability along its seasonal evolution. Along with optical measurements, snow depth, sea ice thickness, and freeboard were recorded, and ice cores were analyzed for chlorophyll a and particulate matter. Our results show that snow cover variability prior to onset of snow melt causes as much relative spatial variability of light transmittance as the contrast of ponded and white ice during summer. Both before and after melt onset, measured transmittances fell in a range from one third to three times the mean value. In addition, we found a twentyfold increase of light transmittance as a result of partial snowmelt, showing the seasonal evolution of transmittance through sea ice far exceeds the spatial variability. However, prior melt onset, light transmittance was time invariant and differences in under-ice irradiance were directly related to the spatial variability of the snow cover.