993 resultados para Dürer, Albrecht, 1471-1528


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Aufführungen seiner Theaterstücke, Frankfurter Zeitung: Kritik, Johannes Proelß

Relevância:

20.00% 20.00%

Publicador:

Resumo:

"Gedichte in Frankfurter Mundart", Ein Theaterstück, Stoltze: Gegen seine Zitierung als "Friedericus Superbus"

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Sein Theaterstück, Journalisten- und Schriftstellerverein

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Heinrich Anton Cornill-d'Orville (Exlibris im Vorderdeckel)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Gustav Freytag

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Vorbesitzer: Heinrich Anton Cornill-d'Orville

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Signatur des Originals: S 36/F02198

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Signatur des Originals: S 36/F07722

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Signatur des Originals: S 36/G10001

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Signatur des Originals: S 36/G00236

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Knowledge of the evolution of atmospheric carbon dioxide concentrations throughout the Earth's history is important for a reconstruction of the links between climate and radiative forcing of the Earth's surface temperatures. Although atmospheric carbon dioxide concentrations in the early Cenozoic era (about 60 Myr ago) are widely believed to have been higher than at present, there is disagreement regarding the exact carbon dioxide levels, the timing of the decline and the mechanisms that are most important for the control of CO2 concentrations over geological timescales. Here we use the boron-isotope ratios of ancient planktonic foraminifer shells to estimate the pH of surface-layer sea water throughout the past 60 million years, which can be used to reconstruct atmospheric CO2 concentrations. We estimate CO2 concentrations of more than 2,000 p.p.m. for the late Palaeocene and earliest Eocene periods (from about 60 to 52 Myr ago), and find an erratic decline between 55 and 40 Myr ago that may have been caused by reduced CO2 outgassing from ocean ridges, volcanoes and metamorphic belts and increased carbon burial. Since the early Miocene (about 24 Myr ago), atmospheric CO2 concentrations appear to have remained below 500 p.p.m. and were more stable than before, although transient intervals of CO2 reduction may have occurred during periods of rapid cooling approximately 15 and 3 Myr ago.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

An integrated instrument package for measuring and understanding the surface radiation budget of sea ice is presented, along with results from its first deployment. The setup simultaneously measures broadband fluxes of upwelling and downwelling terrestrial and solar radiation (four components separately), spectral fluxes of incident and reflected solar radiation, and supporting data such as air temperature and humidity, surface temperature, and location (GPS), in addition to photographing the sky and observed surface during each measurement. The instruments are mounted on a small sled, allowing measurements of the radiation budget to be made at many locations in the study area to see the effect of small-scale surface processes on the large-scale radiation budget. Such observations have many applications, from calibration and validation of remote sensing products to improving our understanding of surface processes that affect atmosphere-snow-ice interactions and drive feedbacks, ultimately leading to the potential to improve climate modelling of ice-covered regions of the ocean. The photographs, spectral data, and other observations allow for improved analysis of the broadband data. An example of this is shown by using the observations made during a partly cloudy day, which show erratic variations due to passing clouds, and creating a careful estimate of what the radiation budget along the observed line would have been under uniform sky conditions, clear or overcast. Other data from the setup's first deployment, in June 2011 on fast ice near Point Barrow, Alaska, are also shown; these illustrate the rapid changes of the radiation budget during a cold period that led to refreezing and new snow well into the melt season.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Este trabajo se propone a analizar la crítica del filósofo alemán Albrecht Wellmer direccionada sobretodo a Habermas. Alumno de éste y de Adorno en la así llamada Escuela de Frankfurt, Wellmer, en su Etica del discurso (1986), se propone a neutralizar los problemas de la ética kantiana, pero sin abandonar el normativismo moral de pretensión universalista. Para Wellmer, "un principio como el imperativo categórico (kantiano) no puede nunca operar en un espacio vacío". Su foco es el a priori de la aplicación prácticas de las normas, ya que estas dependen de nuestra capacidad de captarlas en determinada situación concreta, una vez que su aplicación puede implicar una flagrante inmoralidad. Las críticas de Wellmer se dirigen al consenso normativo tan caro a Habermas: la generalización universalista oculta el olvido de contextos históricos. Así como la racionalidad de los consensos no puede ser caracterizada formalmente, tampoco la racionalidad y la verdad de los consensos tienen que necesariamente coincidir: "así como no podemos inferir de la falsedad de un consenso la falta de racionalidad del mismo, tampoco podemos inferir la verdad de los consensos de su racionalidad". Racionalidad y verdad sólo coinciden desde la perspectiva interna de los implicados