Rolling stones and tree rings: A state of research on dendrogeomorphic reconstructions of rockfall

This progress report focuses on the contribution of tree-ring series to rockfall research and on recent development and challenges in the field. Dendrogeomorphic techniques have been used extensively since the early 2000s and several approaches have been developed to extract rockfall signals from tree-ring records of conifer trees. The reconstruction of rockfall chronologies has been hampered in the past by sample sizes that decrease as one goes back in time, as well as by a paucity of studies that include broadleaved tree species, which are in fact quite common in rockfall-prone environments. In this report, we propose a new approach considering impact probability and quantification of uncertainty in the reconstruction of rockfall time series as well as a quantitative estimate of presumably missed events. In addition, we outline new approaches and future perspectives for the inclusion of woody vegetation in hazard assessment procedures, and end with future thematic perspectives.

Second-Personal Reasons and Special Obligations

The paper discusses the second-personal account of moral obligation as put forward by Stephen Darwall. It argues that on such an account, an important part of our moral practice cannot be explained, namely special obligations that are grounded in special relationships between persons. After highlighting the problem, the paper discusses several strategies to accommodate such special obligations that are implicit in some of Darwall’s texts, most importantly a disentanglement strategy and a reductionist strategy. It argues that neither one of these strategies is entirely convincing. The last part of the papers sketches a novel account of how to accommodate special obligations in a second-personal framework: According to this suggestion, special obligations might be due to the fact that relationships change the normative authority that persons have over each other.

Neural representation and clinically relevant moderators of individualised self-criticism in healthy subjects

Many people routinely criticise themselves. While self-criticism is largely unproblematic for most individuals, depressed patients exhibit excessive self-critical thinking, which leads to strong negative affects. We used functional magnetic resonance imaging in healthy subjects (N = 20) to investigate neural correlates and possible psychological moderators of self-critical processing. Stimuli consisted of individually selected adjectives of personally negative content and were contrasted with neutral and negative non-self-referential adjectives. We found that confrontation with self-critical material yielded neural activity in regions involved in emotions (anterior insula/hippocampus-amygdala formation) and in anterior and posterior cortical midline structures, which are associated with self-referential and autobiographical memory processing. Furthermore, contrasts revealed an extended network of bilateral frontal brain areas. We suggest that the co-activation of superior and inferior lateral frontal brain regions reflects the recruitment of a frontal top-down pathway, representing cognitive reappraisal strategies for dealing with evoked negative affects. In addition, activation of right superior frontal areas was positively associated with neuroticism and negatively associated with cognitive reappraisal. Although these findings may not be specific to negative stimuli, they support a role for clinically relevant personality traits in successful regulation of emotion during confrontation with self-critical material.

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".

Distinctive insular forms of threespine stickleback (Gasterosteus aculeatus) from western Mediterranean islands

Neutral and adaptive variation among populations within a species is a major component of biological diversity and may be pronounced among insular populations due to geographical isolation and island specific evolutionary forces at work. Detecting and preserving potential evolutionary significant units below the species rank has become a crucial task for conservation biology. Combining genetic, phenotypic and ecological data, we investigated evolutionary patterns among the enigmatic threespine stickleback populations from western Mediterranean islands, all of which are threatened by habitat deterioration and climate change. We find indications that these populations derive from different genetic lineages, being genetically highly distinct from the stickleback of mainland Europe and the northern Atlantic as well as from each other. Mediterranean island stickleback populations are also phenotypically distinct from mainland populations but interestingly stickleback from Iceland have converged on a similar phenotype. This distinctive island stickleback phenotype seems to be driven by distinct selective regimes on islands versus continents. Overall, our results reveal the status of western Mediterranean island stickleback as evolutionarily distinct units, important for conservation of biodiversity.