Very dense seismic networks, consisting of thousands of geophones, are common in the subsurface exploration industry. They allow very detailed imaging of the underground through active or passive seismic methods and have been used to monitor and optimize the development of reservoirs in particular in the oil-and-gas industry through the recording of micro/nano seismicity induced during fluid injections. However, these seismic networks are designed to be installed for a limited amount of time, from a few days to a few weeks, and represent a major investment that is generally unaffordable outside the oil-and-gas industry. By contrast, permanent/long-term monitoring networks are usually restricted to a very few numbers of sensors. This limits, or even precludes, the complete characterization of seismic events (precise location, focal mechanism, source time function, etc.), detailed analysis of repeating events (a signature of aseismic deformation), and 4D imaging from micro-seismicity or ambient seismic noise. These networks are not adequate for reservoir management, which requires detailed information about reservoir structure and dynamics. The PrESENCE project presents and tests a new paradigm of collaborative monitoring of geohazards in urban environments: we will obtain seismological observations using a large number of low cost internet-connected equipment together with strong involvement of local public authorities and citizens. The PrESENCE project focuses on seismic hazards induced by deep geothermal operations and their associated societal perception. This topic is becoming a major issue in the development of renewable energies that involve the subsurface as seismic hazards are of significant public concern and can have major socio-economic impacts. The PrESENCE project is based on our rich experience from the recent seismic crisis in Strasbourg, which culminated in the paroxysmal Dec 4, 2020 M3.6 earthquake that led to the closure of the deep geothermal energy Geoven site (Fonroche-Geothermie company). The breakthrough strategy at the heart of the PrESENCE project relies on the deployment of Dense Semi-permanent Seismic Networks (DSSN) using low-cost seismic stations installed in internet-connected buildings and operated by non-seismologists. This new network concept goes beyond the historical choice between sparse permanent networks and very dense but temporary networks that cannot facilitate long-term monitoring. DSSNs represent an opportunity for traditional seismic network operators (public research institutes or private companies) to benefit from a vast amount of complementary data. The PrESENCE project will characterize the impacts of this new network concept on operational seismic monitoring, subsurface imaging, temporal monitoring of subsurface properties, warning systems, and the estimation of sociological impacts on the perception of seismic risk. The main questions we will tackle are: What are the intrinsic technical performance, limitations and complexity of these low-cost systems in terms of scientific requirements? How do such systems compare to classic and emerging seismic wave field measurement technologies? What scientific contributions can we expect from local or regional-scale DSSN in terms of knowledge of sub-surface reservoirs, their dynamics and the assessment of related hazards? How can DSSN data and products be integrated and used to improve the efficiency of reservoir monitoring? What are the impacts of public commitment in scientific research through the operation of a seismic station, on the public perception and representation of seismology and related scientific and industrial activities?

As higher education emerges from two years of distance learning management in a pandemic context, the question of hybridisation of training systems and practices is still being raised at several levels. In 2012, thanks to the European project "Hy-Sup", a typology of hybrid training environments and a self-positioning tool for teachers were created. Today, considering the changes of the last few years, it is necessary to resume this work and to design a common descriptor framework updated according to recent institutional contexts, which allows both to describe and categorise these environments, and to better understand the practices and the related training contexts among teachers and students. The objectives of the HyPES project are thus to: (1) to update and enrich the tool and the typology of hybrid training environments created in 2012 by integrating the points of view of both teachers and students, the dimension of learning assessment and the consideration of the institutional context; (2) to study the divergences and convergences in the conception and/or perception of these environments by teachers and students, as well as the evolution of their blended learning practices over the 3 years of the project; (3) to understand the collective conditions under which university actors appropriate these instruments for analysing their practices, which are the result of collective research. In order to achieve these objectives, the project will be based on quantitative (150 teachers and 3000 students), qualitative and longitudinal (45 teachers and students) research on the hybrid training practices of teachers and students in these environments. It will take into account the institutional contexts and the support policies carried out for these actors by the 4 university partners of the project. The deliverables will include an update of the typology of hybrid environments of the European "Hy-Sup" project and the resulting self-positioning tool, portraits (persona) of the actors surveyed, the formalisation of a tool-based methodology for the longitudinal monitoring of hybrid teaching-learning practices, a modelling (cartography) of the components of the institutional context on hybridisation of higher education training, and standard support scenarios for the actors (teachers and students). This project, coordinated by French and Luxembourg university partners, will also involve Swiss and Quebec researchers, in order to strengthen its international scope and to diversify the potential investigation contexts in which these devices and practices are embedded.