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Obwohl der Reflexion von Unterricht eine zentrale Bedeutung für Lehrkräfte zukommt, ist die Reflexionsfähigkeit von Lehramtsstudierenden oftmals nur gering ausgeprägt und wird auch in Praxisphasen nicht automatisch weiterentwickelt. Es besteht also bereits im Studium ein Bedarf, die Studierenden bei der Entwicklung dieser Fähigkeit zu unterstützen. Hier soll die nachfolgend vorgestellte Lernumgebung ansetzen und eine systematische Erfassung, Rückmeldung und Förderung der Reflexionsfähigkeit ermöglichen. Die Lernumgebung ist für das Lehramtsstudium im Fach Physik entwickelt und besteht aus einem Diagnoseinstrument mit daran anschließendem Assessment-Feedback und Fördermaterial. Erste Untersuchungen zur Validität zeigen, dass die Studierenden während der Bearbeitung des Diagnoseinstruments inhaltlich relevante Überlegungen anstellen sowie das erhaltene Assessment-Feedback inhaltlich sinnvoll interpretieren und auch dem Fördermaterial einen Mehrwert für ihre Professionalisierung zusprechen.
Carbon dioxide removal from the atmosphere is becoming an important option to achieve net zero climate targets. This paper develops a welfare and public economics perspective on optimal policies for carbon removal and storage in non-permanent sinks like forests, soil, oceans, wood products or chemical products. We derive a new metric for the valuation of non-permanent carbon storage, the social cost of carbon removal (SCC-R), which embeds also the conventional social cost of carbon emissions. We show that the contribution of CDR is to create new carbon sinks that should be used to reduce transition costs, even if the stored carbon is released to the atmosphere eventually. Importantly, CDR does not raise the ambition of optimal temperature levels unless initial atmospheric carbon stocks are excessively high. For high initial atmospheric carbon stocks, CDR allows to reduce the optimal temperature below initial levels. Finally, we characterize three different policy regimes that ensure an optimal deployment of carbon removal: downstream carbon pricing, upstream carbon pricing, and carbon storage pricing. The policy regimes differ in their informational and institutional requirements regarding monitoring, liability and financing.
The birth of the Yishuv’s national shipping company, ZIM was preceded by private enterprise; the sea had not traditionally been a focus of the Zionist movement. In the 1930s, a five-year span of private commercial shipping saw three companies in the Jewish community in Palestine – Palestine Shipping Company, Palestine Maritime Lloyd, and Atid – before shipping was cut short by the outbreak of the Second World War. Despite their brief lifespans and their negligible contribution to general shipping, these companies constituted an important milestone. Their existence helped shift the Yishuv leadership’s attitudes about shipping’s importance for the community and the need for it to be supported by national institutions.
The use of nano zerovalent iron (nZVI) for environmental remediation is a promising new technique for in situ remediation. Due to its high surface area and high reactivity, nZVI is able to dechlorinate organic contaminants and render them harmless. Limited mobility, due to fast aggregation and sedimentation of nZVI, limits the capability for source and plume remediation. Carbo-Iron is a newly developed material consisting of activated carbon particles (d50 = 0,8 µm) that are plated with nZVI particles. These particles combine the mobility of activated carbon and the reactivity of nZVI. This paper presents the first results of the transport experiments.
Inhalt: 1. Die Aufweichung des Kulturbegriffs in der Neuzeit 2. Der Kulturbegriff zwischen gesellschaftlicher Dekonstruktion und politischer Rekonstruktion 2.1 Auf dem Weg zur postmodernen Gesellschaft wird Kultur radikal dezentriert 2.2 Mit der Dezentrierung der Kultur entstehen neue Formen von kulturellen Diskursen, zum Beispiel im Dienst eines politischen Kalküls 3. Neue Formen der Kultur in der Postmoderne 3.1 Mit der Dislokation und Dezentrierung von Kultur eröffnen sich neue Chancen für diversifizierte kulturelle Diskurse 3.2 In der Diversifizierung folgen die kulturellen Diskurse der allgemeinen gesellschaftlichen Ausdifferenzierung 4. Plädoyer für einen neuen Kulturbegriff
In this issue, we continue and complete the debate on the future of the transatlantic relationship and of world order after the Iraq war. The debate was initiated by an article by Thomas Risse (Freie Universität Berlin) in WeltTrends 39, which has provoked a remarkable reaction within the German academic community, as documented in WeltTrends 40. This issue features additional comments and the rebuttal by Thomas Risse. Most authors believe that the transatlantic partnership is in a serious crisis, but claim that it remains without an alternative for both sides of the Atlantic.
The border between Germany and Poland today is undisputed and definite, and thought to promote great co-operation and a culture of good-neighbourliness. Relations between the two governments are progressing nicely. But public opinion and behaviour are still lagging behind. The author describes how thought and emotions on the Polish side are still influenced by memories of the past, especially of the German occupation during the Second World War, and the slow pace of progress in overcoming that memory. He shows that the "shadows of history" have strongly influenced Polish politics in the context of German reunification. Special emphasis is given to the role of the Catholic Church in the controversial debate on the relations towards Germany in the 1950s and 1960s.
The author shows the strong relation between political developments, frontiers and their graphical representation on maps. Human rights, economic globalisation and the European integration process do change national policy and erode classical border lines. Still today, maps with lines and colours as their main graphic elements represent the world of the 19th century with separate national states in atlases, schoolbooks and electronic media. The main argument of the article insists on stressing the political character of maps and showing the contradiction between the cartographic picture of the world and the recent international transformations. The author concludes with the question of whether maps can reproduce these new developments at all.