The aporia of collective violence

From the theoretical perspective of René Girard, Walter Benjamin and Jacques Derrida the Rwanda genocide of 1994 may be interpreted as an instance of foundational violence. Given the constant reference in the Rwanda genocide discourse to the failed revolution of 1959, it is perhaps rather a case of deferred foundational violence. Useful as this notion of “foundational violence” may be, as theoretical category it is also hugely challenging because the implicit claim is not just historical (“states are routinely founded on violence”) but analytical (“founding moments are per definition violent”). The result is a profound tension between, on the one hand, the need to understand the event as somehow unexceptional or typical of the founding of new socio-political orders and, on the other hand, the need to judge it as exceptional, an “outrage,” a crime against humanity. This paper treats the tension between the unexceptional and exceptional as aporetic, that is, as a profound puzzle consisting of two equally valid imperatives which are nonetheless mutually exclusive. It is also an attempt to find a way beyond the impasse

Crossing conceptual thresholds in doctoral communities

Pre-printThe traditional apprenticeship model of supervision in which the single scholar charts her individual research path is giving way to more collaborative learning environments. Doctoral programmes, in which communities of scholars work together, have become increasingly common. This study interrogated how being part of such a community enables the conceptual depth we expect at doctoral level. It draws on the notion of conceptual threshold crossing to make sense of the learning experiences of 28 education PhD scholars. Working in a community of doctoral scholars was found to have conceptual impact (i) when the community is supportive, (ii) encourages risk-taking and facilitates conversations across different issues and disciplines, (iii) when the scholars have to regularly articulate their position and (iv) because the programme structure enhances the likelihood of fortuitous encounters with theories and concepts

The Calabrian Arc subduction complex in the Ionian Sea: Regional architecture, active deformation, and seismic hazard

We analyzed the structure and evolution of the external Calabrian Arc (CA) subduction complex through an integrated geophysical approach involving multichannel and single‐channel seismic data at different scales. Pre‐stack depth migrated crustal‐scale seismic profiles have been used to reconstruct the overall geometry of the subduction complex, i.e., depth of the basal detachment, geometry and structural style of different tectonic domains, and location and geometry of major faults. High‐resolution multichannel seismic (MCS) and sub‐bottom CHIRP profiles acquired in key areas during a recent cruise, as well as multibeam data, integrate deep data and constrain the fine structure of the accretionary wedge as well as the activity of individual fault strands. We identified four main morpho‐structural domains in the subduction complex: 1) the post‐Messinian accretionary wedge; 2) a slope terrace; 3) the pre‐Messinian accretionary wedge and 4) the inner plateau. Variation of structural style and seafloor morphology in these domains are related to different tectonic processes, such as frontal accretion, out‐of-sequence thrusting, underplating and complex faulting. The CA subduction complex is segmented longitudinally into two different lobes characterized by different structural style, deformation rates and basal detachment depths. They are delimited by a NW/SE deformation zone that accommodates differential movements of the Calabrian and the Peloritan portions of CA and represent a recent phase of plate re‐organization in the central Mediterranean. Although shallow thrust‐type seismicity along the CA is lacking, we identified active deformation of the shallowest sedimentary units at the wedge front and in the inner portions of the subduction complex. This implies that subduction could be active but aseismic or with a locked fault plane. On the other hand, if underthrusting of the African plate has stopped recently, active shortening may be accommodated through more distributed deformation. Our findings have consequences on seismic hazard, since we identified tectonic structures likely to have caused large earthquakes in the past and to be the source regions for future events

When workplace unionism in global value chains does not function well : exploring the impediments

Improving working conditions at the bottom of global value chains has become a central issue in our global economy. In this battle, trade unionism has been presented as a way for workers to make their voices heard. Therefore, it is strongly promoted by most social standards. However, establishing a well-functioning trade union is not as obvious as it may seem. Using a comparative case study approach, we examine impediments to farm-level unionism in the cut flower industry in Ethiopia. For this purpose, we propose an integrated framework combining two lenses, namely a vertical one (governance and structure of global value chains) and a horizontal one (socio-economic context). We identify 10 impediments that point to three major dimensions contributing to unionisation. These three dimensions include awareness of and interest from workers, legitimacy of trade unions, and capacity of trade unions to act. Furthermore, our results suggest that private social standards may, in certain cases, be counterproductive for the efficient functioning of trade unions. Although we argue that there is no ‘quick fix’ solution to weak workplace unionism at the bottom of global value chains, we stress the importance of considering the dynamics of, and interactions between, the impediments when designing potential support measures that mitigate negative impacts

Growth and retreat of the last British–Irish Ice Sheet, 31 000 to 15 000 years ago: the BRITICE-CHRONO reconstruction

The BRITICE-CHRONO consortium of researchers undertook a dating programme to constrain the timing of advance, maximum extent and retreat of the British–Irish Ice Sheet between 31 000 and 15 000 years before present. The dating campaign across Ireland and Britain and their continental shelves, and across the North Sea included 1500 days of field investigation yielding 18 000 km of marine geophysical data, 377 cores of sea floor sediments, and geomorphological and stratigraphical information at 121 sites on land; generating 690 new geochronometric ages. These findings are reported in 28 publications including synthesis into eight transect reconstructions. Here we build ice sheet-wide reconstructions consistent with these findings and using retreat patterns and dates for the inter-transect areas. Two reconstructions are presented, a wholly empirical version and a version that combines modelling with the new empirical evidence. Palaeoglaciological maps of ice extent, thickness, velocity, and flow geometry at thousand-year timesteps are presented. The maximum ice volume of 1.8 m sea level equivalent occurred at 23 ka. A larger extent than previously defined is found and widespread advance of ice to the continental shelf break is confirmed during the last glacial. Asynchrony occurred in the timing of maximum extent and onset of retreat, ranging from 30 to 22 ka. The tipping point of deglaciation at 22 ka was triggered by ice stream retreat and saddle collapses. Analysis of retreat rates leads us to accept our hypothesis that the marine-influenced sectors collapsed rapidly. First order controls on ice-sheet demise were glacio-isostatic loading triggering retreat of marine sectors, aided by glaciological instabilities and then climate warming finished off the smaller, terrestrial ice sheet. Overprinted on this signal were second order controls arising from variations in trough topographies and with sector-scale ice geometric readjustments arising from dispositions in the geography of the landscape. These second order controls produced a stepped deglaciation. The retreat of the British–Irish Ice Sheet is now the world’s most well-constrained and a valuable data-rich environment for improving ice-sheet modelling.publishedVersio

Louise Müller e o Jogo da Filosofia Africana: Lopes, Marcos Carvalho. Louise Müller e.o. Jogo Da Filosofia Africana." In Tcholonadur: Entrevistas Sobre Filosofia Africana, edited by Marcos Carvalho Lopes, 183-95. São Carlos: Pedro & João Editores, 2023.

Louise Müller e o jogo da filosofia africana*“O conhecimento é como um baobá, nenhuma pessoa sozinha pode abraçá-lo”. Esse é um provérbio Akan que pode ser combinado com outro que diz “Que nenhuma cidade (polis) possui sozinha a verdade”. Nenhuma cidade poderia almejar a posse integral da verdade. É nesse sentido que a filósofa holandesaLouise Müller, especialista na cultura akan, tem se dedicado à filosofia africana, desenvolvendo diálogos interculturais, assim como, buscando se aprofundar nos conhecimentos de línguas e culturas africanas.Modern and Contemporary Studie

Emerging IT risks: insights from German banking

How do German banks manage the emerging risks stemming from IT innovations such as cyber risk? With a focus on process, roles and responsibilities, field data from ten banks participating in the 2014 ECB stress test were collected by interviewing IT managers, risk managers and external experts. Current procedures for handling emerging risks in German banks were identified from the interviews and analysed, guided by the extant literature. A clear gap was found between enterprise risk management (ERM) as a general approach to risks threatening firms’ objectives and ERM’s neglect of emerging risks, such as those associated with IT innovations. The findings suggest that ERM should be extended towards the collection and sharing of knowledge to allow for an initial understanding and description of emerging risks, as opposed to the traditional ERM approach involving estimates of impact and probability. For example, as cyber risks emerge from an IT innovation, the focus may need to switch towards reducing uncertainty through knowledge acquisition. Since individual managers seldom possess all relevant knowledge of an IT innovation, various stakeholders may need to be involved to exploit their expertise

Exploring the ingredients required to successfully model the placement, generation, and evolution of ice streams in the British-Irish Ice Sheet

Ice stream evolution is a major uncertainty in projections of the future of the Greenland and Antarctic Ice sheets. Accurate simulation of ice stream evolution requires an understanding of a number of “ingredients” that control the location and behaviour of ice stream flow. Here, we test the influence of geothermal heat flux, grid resolution, and bed hydrology on simulated ice streaming. The palaeo-record provides snapshots of ice stream evolution, with a particularly well constrained ice sheet being the British-Irish Ice Sheet (BIIS). We implement a new basal sliding scheme coupled with thermo-mechanics into the BISICLES ice sheet model, to simulate the evolution of the BIIS ice streams. We find that the simulated location and spacing of ice streams matches well with the empirical reconstructions of ice stream flow in terms of position and direction when simple bed hydrology is included. We show that the new basal sliding scheme allows the accurate simulation for the majority of BIIS ice streams. The extensive empirical record of the BIIS has allowed the testing of model inputs, and has helped demonstrate the skill of the ice sheet model in simulating the evolution of the location, spacing, and migration of ice streams through millennia. Simulated ice streams also prompt new empirical mapping of features indicative of streaming in the North Channel region. Ice sheet model development has allowed accurate simulation of the palaeo record, and allows for improved modelling of future ice stream behaviour

Growth and retreat of the last British–Irish Ice Sheet, 31 000 to 15 000 years ago: the BRITICE-CHRONO reconstruction

The BRITICE-CHRONO consortium of researchers undertook a dating programme to constrain the timing of advance, maximum extent and retreat of the British?Irish Ice Sheet between 31?000 and 15?000?years before present. The dating campaign across Ireland and Britain and their continental shelves, and across the North Sea included 1500?days of field investigation yielding 18?000?km of marine geophysical data, 377 cores of sea floor sediments, and geomorphological and stratigraphical information at 121 sites on land; generating 690 new geochronometric ages. These findings are reported in 28 publications including synthesis into eight transect reconstructions. Here we build ice sheet-wide reconstructions consistent with these findings and using retreat patterns and dates for the inter-transect areas. Two reconstructions are presented, a wholly empirical version and a version that combines modelling with the new empirical evidence. Palaeoglaciological maps of ice extent, thickness, velocity, and flow geometry at thousand-year timesteps are presented. The maximum ice volume of 1.8?m sea level equivalent occurred at 23?ka. A larger extent than previously defined is found and widespread advance of ice to the continental shelf break is confirmed during the last glacial. Asynchrony occurred in the timing of maximum extent and onset of retreat, ranging from 30 to 22?ka. The tipping point of deglaciation at 22?ka was triggered by ice stream retreat and saddle collapses. Analysis of retreat rates leads us to accept our hypothesis that the marine-influenced sectors collapsed rapidly. First order controls on ice-sheet demise were glacio-isostatic loading triggering retreat of marine sectors, aided by glaciological instabilities and then climate warming finished off the smaller, terrestrial ice sheet. Overprinted on this signal were second order controls arising from variations in trough topographies and with sector-scale ice geometric readjustments arising from dispositions in the geography of the landscape. These second order controls produced a stepped deglaciation. The retreat of the British?Irish Ice Sheet is now the world?s most well-constrained and a valuable data-rich environment for improving ice-sheet modelling

Philosophy, and teaching (as) transformation

This paper explores a paradox constitutive of transformation discourse in South Africa: the transformation of a fragmented society presupposes the existence of a collective Will; but the creation of a collective will can only result from a process of transformation. While politicians and higher education administrators debate how best to conceive and implement transformation, committed lecturers have to find ways of teaching the reality of that ideal full knowing that it is in part through teaching that this ideal is achieved. The 2010 HE Summit (HES) called on all universities to ‘purposefully address the issue of social cohesion as part of their transformation agenda’ (2010:20). In this paper the learning encounter is posited as the paradoxical site es reproductive of that subjectivity. This suggests a degree of ‘bootstrapping’ in the sense that the learning encounter necessarily posits a historical Subject that is paradoxically both cause and effect of transformation. This is an interpretative paper that reflects on what it means to practise philosophy in such a context. Taking Readings’s The University in Ruins (1996) as point of departure it starts with a general, historical reflection on the telos of higher education which is then contextualised with reference to the post-colonial university. Towards the end I briefly consider aspects of my own philosophy teaching praxis in light of that theoretical frame. I engage the ‘bootstrapping’ paradox by suggesting that teaching (as) transformation comprises four moments: making students aware of 1) the fact that they belong to specific socio-epistemic communities; 2) that this sense of community is an historical construct which 3) implies limitations on the possibility of knowing and being that can 4) only be questioned through an encounter with what is other to that socio-epistemic community. In short, it is argued that in a university context the possibility of ‘social cohesion’ is first and foremost a confrontation with the conditions for the possibility of inter-subjective learning