A deep dig--hindsight on Holocene vegetation composition from ancient environmental DNA

Want a glimpse at past vegetation? Studying pollen and other plant remains, which are preserved for example in lake sediments or mires for thousands of years, allows us to document regional occurrences of plant species over radiocarbon-dated time series. Such vegetation reconstructions derived from optical analyses of fossil samples are inherently incomplete because they only comprise taxa that contribute sufficient amounts of pollen, spores, macrofossil or other evidences. To complement optical analyses for paleoecological inference, molecular markers applied to ancient DNA (aDNA) may help in disclosing information hitherto inaccessible to biologists. Parducci et al. (2013) targeted aDNA from sediment cores of two lakes in the Scandes Mountains with generic primers in a meta-barcoding approach. When compared to palynological records from the same cores, respective taxon lists show remarkable differences in their compositions, but also in quantitative representation and in taxonomic resolution similar to a previous study (Jørgensen et al. 2012). While not free of assumptions that need critical and robust testing, notably the question of possible contamination, this study provides thrilling prospects to improve our knowledge about past vegetation composition, but also other organismic groups, stored as a biological treasure in the ground.

Hypernatremia in critically ill patients

Hypernatremia is common in intensive care units. It has detrimental effects on various physiologic functions and was shown to be an independent risk factor for increased mortality in critically ill patients. Mechanisms of hypernatremia include sodium gain and/or loss of free water and can be discriminated by clinical assessment and urine electrolyte analysis. Because many critically ill patients have impaired levels of consciousness, their water balance can no longer be regulated by thirst and water uptake but is managed by the physician. Therefore, the intensivists should be very careful to provide the adequate sodium and water balance for them. Hypernatremia is treated by the administration of free water and/or diuretics, which promote renal excretion of sodium. The rate of correction is critical and must be adjusted to the rapidity of the development of hypernatremia.

The Power of Tolerance. A Debate

We invoke the ideal of tolerance in response to conflict, but what does it mean to answer conflict with a call for tolerance? Is tolerance a way of resolving conflicts or a means of sustaining them? Does it transform conflicts into productive tensions, or does it perpetuate underlying power relations? To what extent does tolerance hide its involvement with power and act as a form of depoliticization? Wendy Brown and Rainer Forst debate the uses and misuses of tolerance, an exchange that highlights the fundamental differences in their critical practice despite a number of political similarities. Both scholars address the normative premises, limits, and political implications of various conceptions of tolerance. Brown offers a genealogical critique of contemporary discourses on tolerance in Western liberal societies, focusing on their inherent ties to colonialism and imperialism, and Forst reconstructs an intellectual history of tolerance that attempts to redeem its political virtue in democratic societies. Brown and Forst work from different perspectives and traditions, yet they each remain wary of the subjection and abnegation embodied in toleration discourses, among other issues. The result is a dialogue rich in critical and conceptual reflections on power, justice, discourse, rationality, and identity.

Ein Autor von ›hypertropher Virilität‹. Geschlecht in der Musil-Rezeption der 1920er und 1930er Jahre

Adopting "The Man Without Qualities" as a decisively masculine novel, contemporary literary criticism passed on a trope with which reviewers such as Alfred Döblin, Robert Müller and Franz Blei had already characterised Musil’s earlier texts. The reviews of the novel are therefore typical of how evaluations in terms of originality in the literary-critical and poetological debates of the 20s and 30s were regularly translated into the established gender hierarchy. The need to make such judgements can be seen as much as the symptom of a modern consciousness of crisis in masculinity as the hyper-athletics of the novel’s hero himself and the pitiful figure cut by the other men in "The Man Without Qualities".

"Alexander von Humboldt als internationaler Publizist. Zur Edition seiner sämtlichen Schriften"

Alexander von Humboldt veröffentlichte rund 800 Aufsätze, Artikel und Essays in zahlreichen Wissensgebieten und diversen Sprachen. Die Verteilung ihrer Publikati-onsorte entspricht der Reichweite seiner Reisen und der globalen Perspektive seiner Forschungen. Die Vielfalt seiner Co-Autoren und Kooperationspartner spiegelt seine Multidisziplinarität. Humboldts umfangreiches publizistisches Werk dokumentiert sei-ne internationale Bedeutung als Wissenschaftler, Reiseschriftsteller und Kulturver-mittler. An der Universität Bern entsteht die erste Gesamtedition dieses Humboldt-schen Œuvres, die 2019 zum 250. Geburtstag des Autors vorliegen soll. Ihr Ziel ist Systematisierung, Dokumentation und Erschließung des Corpus – in einer Buchausgabe mit Text- und Apparatbänden und in einer digitalen Edition mit computerphilo-logischen Werkzeugen. Alexander von Humboldt (1769–1859), Aufsätze und Essays, internationale Publizistik, Wissenschaftsgeschichte, Editionsphilologie.