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- Ursula Thiemer-Sachse: El “Museo histórico indiano” de Lorenzo Boturini Benaduci y los esfuerzos del erudito alemán Alejandro de Humboldt para preservar sus restos para una interpretación científica
- Ursula Thiemer-Sachse: Petroglifos en rocas de la Cordillera de la Costa así como en los raudales de los ríos de la selva virgen venezolana. La interpretación por Alejandro de Humboldt y observaciones actuales
- Ingo Schwarz: „Ein beschränkter Verstandesmensch ohne Einbildungskraft“ – Anmerkungen zu Friedrich Schillers Urteil über Alexander von Humboldt
- Michael Zeuske: Humboldteanización del mundo occidental? La importancia del viaje de Humboldt para Europa y América Latina
- Kurt-R. Biermann (hg. von I. Schwarz): Ein „politisch schiefer Kopf“ und der „letzte Mumienkasten“ – Humboldt und Metternich
- Ottmar Ette: Die Ordnung der Weltkulturen : Alexander von Humboldts Ansichten der Kultur
- Eberhard Knobloch: Naturgenuss und Weltgemälde : Gedanken zu Humboldts Kosmos
- Jason H. Lindquist: threats to the European subject in Humboldt’s personal narrative of travels to the equinoctial regions of the New Continent
- Oliver Lubrich: Sobre la disolución del clasicismo en la Relación histórica de un viaje a las regiones equinocciales del Nuevo Continente - Engelhard Weigl: Wald und Klima: Ein Mythos aus dem 19. Jahrhundert
Die Banken- und Börsensysteme Europas befinden sich in einem grundlegenden Wandel. Globalisierungsprozesse der Finanzmärkte, die Harmonisierung der aufsichtsrechtlichen Rahmenbedingungen sowie neue Informationstechnologien stellen hohe Anforderungen. Die Integration Russlands in die Weltwirtschaft erfordert eine weitere Liberalisierung, Fortentwicklung und Anpassung der Banken- und Börsenstrukturen an internationale und europäische Standards, um die nationale und internationale Kapitalallokation effizienter zu gestalten. Finanz-, Banken- und Börsenexperten aus deutschen und russischen Universitäten lehren und forschen seit Jahren zu diesen Fragestellungen. Der Potsdamer Workshop stellt die Ergebnisse verschiedener Lehrstühle aus Potsdam, St. Petersburg und Moskau zur Diskussion. Mit folgenden Beiträgen: Detlev HUMMEL: Integration und Perspektiven des Europäischen Kapitalmarktes, Hans-Georg PETERSEN: Tax Competition, Tax Havens and Capital income Taxation, Yakov M. MIRKIN: Importance of the European Capital Market for Russia, Christoph LATTEMANN: Elektronische Systeme für den Wertpapierhandel in Europa und Entwicklungsmöglichkeiten für Russland – eine explorative Studie, Hans-Joachim MASSENBERG: Lage und Perspektiven des deutschen Bankensektors, Ralf WIEGERT: Russia’s Banking System, the Central Bank and the Exchange Rate Regime, Galina BELOGLAZOWA: Entwicklungsstrategie des russischen Bankensystems und die Rolle der Sberbank, Anatole KOSMATCHEV: Wettbewerb im Bankensystem Russlands, Tatjana NIKITINA: Auswirkungen von Basel II auf das russische Bankensystem, Julia PLAKITKINA: Auslandsbanken in Russland, Natalia DOUMNAYA: Russian-German Economic Relations under Globalization, Tatjana NIKOLAJEWA: Investitionen, Banken und Wirtschaftswachstum in Russland, Alexej LINKOV: Die aktuellen Probleme der Außenverschuldung Russlands
Anfang des Jahres 2008 erkannte die Bundesrepublik Deutschland den Kosovo als souveränen Staat an, während sich die Europäische Union mit dieser Entscheidung zurückhielt. Die Politikwissenschaftlerin Franziska Krämer untersucht in ihrer Arbeit „Die Politik Deutschlands in der Kosovofrage“ das Spannungsverhältnis zwischen eigenständiger deutscher und europäischer Außenpolitik. Am Beispiel des Kosovo wird die Problematik der Verflechtung von deutschen und europäischen Politikebenen diskutiert. Die Autorin kommt zu dem Ergebnis, dass die deutsche Kosovopolitik als Beispiel einer neuen deutschen Außenpolitik und nicht als der Beginn einer Europäisierung deutscher Außenpolitik zu sehen ist.
Classical methods to analyze the surface composition of atmosphereless planetary objects from an orbiter are IR and gamma ray spectroscopy and neutron backscatter measurements. The idea to analyze surface properties with an in-situ instrument has been proposed by Johnson et al. (1998). There, it was suggested to analyze Europa's thin atmosphere with an ion and neutral gas spectrometer. Since the atmospheric components are released by sputtering of the moon's surface, they provide a link to surface composition. Here we present an improved, complementary method to analyze rocky or icy dust particles as samples of planetary objects from which they were ejected. Such particles, generated by the ambient meteoroid bombardment that erodes the surface, are naturally present on all atmosphereless moons and planets. The planetary bodies are enshrouded in clouds of ballistic dust particles, which are characteristic samples of their surfaces. In situ mass spectroscopic analysis of these dust particles impacting onto a detector of an orbiting spacecraft reveals their composition. Recent instrumental developments and tests allow the chemical characterization of ice and dust particles encountered at speeds as low as 1 km/s and an accurate reconstruction of their trajectories. Depending on the sampling altitude, a dust trajectory sensor can trace back the origin of each analyzed grain with about 10 km accuracy at the surface. Since the detection rates are of the order of thousand per orbit, a spatially resolved mapping of the surface composition can be achieved. Certain bodies (e.g., Europa) with particularly dense dust clouds, could provide impact statistics that allow for compositional mapping even on single flybys. Dust impact velocities are in general sufficiently high at orbiters about planetary objects with a radius > 1000 km and with only a thin or no atmosphere. In this work we focus on the scientific benefit of a dust spectrometer on a spacecraft orbiting Earth's Moon as well as Jupiter's Galilean satellites. This 'dust spectrometer' approach provides key chemical and isotopic constraints for varying provinces or geological formations on the surfaces, leading to better understanding of the body's geological evolution.
Das vorliegende Heft 16 der Reihe Studien zu Grund- und Menschenrechten enthält den Tagungsband zum Workshop „Mechanismen zur Folterverhütung im Vergleich“, welcher am 6. und 7. Oktober 2010 in Potsdam stattfand und die unterschiedlichen Mechanismen zur Folterprävention auf universeller, regionaler und nationaler Ebene beleuchtete.
Sediment records of three European lakes were investigated in order to reconstruct the regional climate development during the Lateglacial and Holocene, to investigate the response of local ecosystems to climatic fluctuations and human impact and to relate regional peculiarities of past climate development to climatic changes on a larger spatial scale. The Lake Hańcza (NE Poland) sediment record was studied with a focus on reconstructing the early Holocene climate development and identifying possible differences to Western Europe. Following the initial Holocene climatic improvement, a further climatic improvement occurred between 10 000 and 9000 cal. a BP. Apparently, relatively cold and dry climate conditions persisted in NE Poland during the first ca. 1500 years of the Holocene, most likely due to a specific regional atmospheric circulation pattern. Prevailing anticyclonic circulation linked to a high-pressure cell above the remaining Scandinavian Ice Sheet (SIS) might have blocked the eastward propagation of warm and moist Westerlies and thus attenuated the early Holocene climatic amelioration in this region until the final decay of the SIS, a pattern different from climate development in Western Europe. The Lateglacial sediment record of Lake Mondsee (Upper Austria) was investigated in order to study the regional climate development and the environmental response to rapid climatic fluctuations. While the temperature rise and environmental response at the onset of the Holocene took place quasi-synchronously, major leads and lags in proxy responses characterize the onset of the Lateglacial Interstadial. In particular, the spread of coniferous woodlands and the reduction of detrital flux lagged the initial Lateglacial warming by ca. 500–750 years. Major cooling at the onset of the Younger Dryas took place synchronously with a change in vegetation, while the increase of detrital matter flux was delayed by about 150–300 years. Complex proxy responses are also detected for short-term Lateglacial climatic fluctuations. In summary, periods of abrupt climatic changes are characterized by complex and temporally variable proxy responses, mainly controlled by ecosystem inertia and the environmental preconditions. A second study on the Lake Mondsee sediment record focused on two small-scale climate deteriorations around 8200 and 9100 cal. a BP, which have been triggered by freshwater discharges to the North Atlantic, causing a shutdown of the Atlantic meridional overturning circulation (MOC). Combining microscopic varve counting and AMS 14C dating yielded a precise duration estimate (ca. 150 years) and absolute dating of the 8.2 ka cold event, both being in good agreement with results from other palaeoclimate records. Moreover, a sudden temperature overshoot after the 8.2 ka cold event was identified, also seen in other proxy records around the North Atlantic. This was most likely caused by enhanced resumption of the MOC, which also initiated substantial shifts of oceanic and atmospheric front systems. Although there is also evidence from other proxy records for pronounced recovery of the MOC and atmospheric circulation changes after the 9.1 ka cold event, no temperature overshoot is seen in the Lake Mondsee record, indicating the complex behaviour of the global climate system. The Holocene sediment record of Lake Iseo (northern Italy) was studied to shed light on regional earthquake activity and the influence of climate variability and anthropogenic impact on catchment erosion and detrital flux into the lake. Frequent small-scale detrital layers within the sediments reflect allochthonous sediment supply by extreme surface runoff events. During the early to mid-Holocene, increased detrital flux coincides with periods of cold and wet climate conditions, thus apparently being mainly controlled by climate variability. In contrast, intervals of high detrital flux during the late Holocene partly also correlate with phases of increased human impact, reflecting the complex influences on catchment erosion processes. Five large-scale event layers within the sediments, which are composed of mass-wasting deposits and turbidites, are supposed to have been triggered by strong local earthquakes. While the uppermost of these event layers is assigned to a documented adjacent earthquake in AD 1222, the four other layers are supposed to be related to previously undocumented prehistorical earthquakes.
The discovery of volcanic activity on Enceladus stands out amongst the long list of findings by the Cassini mission to Saturn. In particular the compositional analysis of Enceladus ice particles by Cassini's Cosmic Dust Analyser (CDA) (Srama et al., 2004) has proven to be a powerful technique for obtaining information about processes below the moon's ice crust. Small amounts of sodium salts embedded in the particles' ice matrices provide direct evidence for a subsurface liquid water reservoir, which is, or has been, in contact with the moon's rocky core (Postberg et al., 2009, 2011b).
Jupiter's Galilean satellites Ganymede, Europa, and Callisto are also believed to have subsurface oceans and are therefore prime targets for future NASA and ESA outer Solar System missions. The Galilean moons are engulfed in tenuous dust clouds consisting of tiny pieces of the moons' surfaces (Kruger et al., 1999), released by hypervelocity impacts of micrometeoroids, which steadily bombard the surfaces of the moons. In situ chemical analysis of these grains by a high resolution dust spectrometer will provide spatially resolved mapping of the surface composition of Europa. Ganymede, and Callisto, meeting key scientific objectives of the planned missions. However, novel high-resolution reflectron-type dust mass spectrometers (Sternovsky et al., 2007; Srama et al., 2007) developed for dust astronomy missions (Gran et al., 2009) are probably not robust enough to be operated in the energetic radiation environment of the inner Jovian system. In contrast, CDA's linear spectrometer is much less affected by harsh radiation conditions because its ion detector is not directly facing out into space. The instrument has been continuously operated on Cassini for 11 years. In this paper we investigate the possibility of operating a CDA-like instrument as a high resolution impact mass spectrometer. We show that such an instrument is capable of reliably identifying traces of organic and inorganic materials in the ice matrix of ejecta expected to be generated from the surfaces of the Galilean moons. These measurements are complementary, and in some cases superior, compared to other traditional techniques such as infrared remote sensing or in situ ion or neutral mass spectrometers.