Avant-propos

S’il est aisé de constater la censure lorsque Dame Anastasie laisse des traces visibles avec ses ciseaux, il est moins évident de reconstituer des processus de surveillance et de contrôle, et de comprendre leurs répercussions sur un travail artistique. Les stratégies d’adaptation ou de contournement élaborées par les artistes peuvent être appréhendées dans le temps long de la recherche lorsque des archives nouvelles viennent éclairer ces phénomè..

Development of a Large-Eddy-Simulation approach with Telemac-3D

Water Qualit

A method to characterize the different extreme waves for islands exposed to various wave regimes: a case study devoted to Reunion Island

This paper outlines a new approach devoted to the analysis of extreme waves in presence of several wave regimes. It entails discriminating the different wave regimes from offshore wave data using classification algorithms, before conducting the extreme wave analysis for each regime separately. The concept is applied to the pilot site of Reunion Island which is affected by three main wave regimes: southern waves, trade-wind waves and cyclonic waves. Several extreme wave scenarios are determined for each regime, based on real historical cases (for cyclonic waves) and extreme value analysis (for non-cyclonic waves). For each scenario, the nearshore wave characteristics are modelled all around Reunion Island and the linear theory equations are used to back calculate the equivalent deep-water wave characteristics for each portion of the coast. The relative exposure of the coastline to the extreme waves of each regime is determined by comparing the equivalent deep-water wave characteristics. <br><br> This method provides a practical framework to perform an analysis of extremes within a complex environment presenting several sources of extreme waves. First, at a particular coastal location, it allows for inter-comparison between various kinds of extreme waves that are generated by different processes and that may occur at different periods of the year. Then, it enables us to analyse the alongshore variability in wave exposition, which is a good indicator of potential runup extreme values. For the case of Reunion Island, cyclonic waves are dominant offshore around the island, with equivalent deep-water wave heights up to 18 m for the northern part. Nevertheless, due to nearshore wave refraction, southern waves may become as energetic as cyclonic waves on the western part of the island and induce similar impacts in terms of runup and submersion. This method can be easily transposed to other case studies and can be adapted, depending on the data availability

IGF-1 stimulates synthesis of undersulfated proteoglycans and of hyaluronic acid by peritubular cells from immature rat testis

AbstractThe exposure of confluent peritubular (PT) cells from immature rat testis to insulin-like growth factor-1 (IGF-1) induced a time and dose-dependent increase of [35S]-sulfate and [3H]-d-glucosamine incorporations in newly synthesized proteoglycans (PG). This increased content of PG was the result of an enhancement of PG synthesis rather than a decreased rate of degradation. IGF-1 had no effect on the molecular weight of synthesized PG nor on the nature and distribution of the constitutive glycosaminoglycan chains, both in medium and in cell layer. The stimulation of PG synthesis by IGF-1 appeared to be due, at least partially, to an increase of glycosylation processes. IGF-1 effect was mediated by the classical tyrosine kinase signalling process, since IGF-1 action on PG synthesis was abolished by genistein and tyrphostin A9, two well known tyrosine kinase inhibitors. The increase of PG synthesis was accompanied with an undersulfation of constitutive glycosaminoglycan (GAG) chains (chondroitin sulfate and heparan sulfate chains) since the [35S]/[3H] ratio was reduced by about 20–25% in presence of IGF-1. Although the mechanism of hyaluronic acid synthesis was completely different from those of other GAG, IGF-1 also dramatically enhanced its production by PT cells

Evaluation of Model Predictions of the Unsteady Tidal Stream Resource and Turbine Fatigue Loads Relative to Multi-Point Flow Measurements at Raz Blanchard

This is the final version. Available on open access from MDPI via the DOI in this recordData Availability Statement: Measured ADCP data were gathered during the Interreg TIGER project. Further information on the deployment campaigns and underlying ADCP data can be found in T1.7.3 (https://interregtiger.com/download/tiger-tidal-test-procedure-reports/, accessed on 26 June 2023). Overview of models used is given in [36]. Underlying model data are provided in the references given. Variation in the flow properties with disk-averaged velocity as reported in this study and employed for fatigue load analysis is available from https://doi.org/10.48420/24236593 (accessed on 28 September 2023). We are grateful to the French navy SHOM (”Service Hydrographique et Océanographique de la Marine”) for providing access to bathymetric data (http://data.shom.fr/, accessed on 6 June 2023).The next stage of development of the tidal stream industry will see a focus on the deployment of tidal turbines in arrays of increasing device numbers and rated power. Successful array development requires a thorough understanding of the resource within potential deployment sites. This is predictable in terms of flow speeds, based upon tidal constituents. However, the operating environment for the turbine is more complex than the turbine experiencing a uniform flow, with turbulence, shear and wave conditions all affecting the loading on the turbine components. This study establishes the accuracy with which several alternative modelling tools predict the resource characteristics which define unsteady loading—velocity shear, turbulence and waves—and assesses the impact of the model choice on predicted damage equivalent loads. In addition, the predictions of turbulence are compared to a higher fidelity model and the occurrence of flow speeds to a Delft3D model for currents and waves. These models have been run for a specific tidal site, the Raz Blanchard, one of the major tidal stream sites in European waters. The measured resource and predicted loading are established using data collected in a recent deployment of acoustic Doppler current profilers (ADCPs) as part of the Interreg TIGER project. The conditions are measured at three locations across the site, with transverse spacing of 145.7 m and 59.3 m between each device. Turbine fatigue loading is assessed using measurements and model predictions based on an unsteady blade element momentum model applied to near-surface and near-bed deployment positions. As well as across-site spatial variation of loading, the through life loading over a 5-year period results in an 8% difference to measured loads for a near-surface turbine, using conditions purely defined from a resource model and to within 3% when using a combination of modelled shear with measured turbulence characteristics.European Regional Development Fund (ERDF

Overview of resource and turbine modelling in the Tidal Stream Industry Energiser Project: TIGER

This is the author accepted manuscript. The final version is available from EWTEC via the DOI in this recordTidal energy projects require numerical modelling for the assessment of tidal site conditions and turbine/array performance. The Interreg TIGER project has offered a unique opportunity to implement a wide range of numerical models. This paper provides an overview and comparison of the different numerical models developed by academic partners in the TIGER project. The models cover a variety of spatial and temporal scales. The largest scale models provide long-term climatic studies covering the entire English Channel region, at relatively low resolution, whilst the highest-resolution models provide detailed information about short-term and small-scale turbulent flow and its interaction with tidal turbines. The models are used for various purposes. At one end of the scale, the models have been used to inform the large-scale techno-economic assessment of tidal energy and its impact on the energy mix in the UK and France. At the other end of the scale, the numerical models provide information that feeds into detailed engineering design of tidal turbines at particular sites, and assessment of the energy yield. The models showcase the range of computational tools available to aid the development of the tidal energy industry. This paper will be useful for investors, technology developers and project stakeholders to help identify suitable numerical models to support and develop ongoing and future tidal stream projects.European Regional Development Fund (ERDF

The effects of acute tryptophan depletion on costly information sampling: impulsivity or aversive processing?

RATIONALE: The neurotransmitter serotonin (5-HT) has been implicated in both aversive processing and impulsivity. Reconciling these accounts, recent studies have demonstrated that 5-HT is important for punishment-induced behavioural inhibition. These studies focused on situations where actions lead directly to punishments. However, decision-making often involves making tradeoffs between small 'local' costs and larger 'global' losses. OBJECTIVE: We aimed to distinguish whether 5-HT promotes avoidance of local losses, global losses, or both, in contrast to an overall effect on reflection impulsivity. We further examined the influence of individual differences in sub-clinical depression, anxiety and impulsivity on global and local loss avoidance. METHODS: Healthy volunteers (N = 21) underwent an acute tryptophan depletion procedure in a double-blind, placebo-controlled crossover design. We measured global and local loss avoidance in a decision-making task where subjects could sample information at a small cost to avoid making incorrect decisions, which resulted in large losses. RESULTS: Tryptophan depletion removed the suppressive effects of small local costs on information sampling behaviour. Sub-clinical depressive symptoms produced effects on information sampling similar to (but independent from) those of tryptophan depletion. Dispositional anxiety was related to global loss avoidance. However, trait impulsivity was unrelated to information sampling. CONCLUSIONS: The current findings are consistent with recent theoretical work that characterises 5-HT as pruning a tree of potential decisions, eliminating options expected to lead to aversive outcomes. Our results extend this account by proposing that 5-HT promotes reflexive avoidance of relatively immediate aversive outcomes, potentially at the expense of more globally construed future losses

Dramaturg(i)es du conflit israélo-palestinien en France : entre assignations identitaires et résistances

In a limited scope, academic critiques have been written on recent productions on the theme of the Israeli-Palestinian conflict, still there exists no comprehensive study on the subject. Additionally, several studies have focused on clarifying the relationship between theatre and politics since the early 2000s. The thesis aims to expand on this line of thought, deriving from cultural transfers of Israeli and Palestinian works to France, from the 1970s to the present day.The methodology implemented articulates theatre historiography, history of theatrical performances and the study of the cultural production field in diachrony. The methodology allowed for the highlighting of the persistence of Orientalism, reinforced by the historic phase-shift between France and Israel and the unequal development between France and Palestine. The theatrical performance can either offer a space of resistance to the identity assignements suffered by artists from Israel and Palestine, or can reproduce domination relations that are legible through the degree of legitimacy of the theatre performances and performers. The thesis evokes the complexity of relations of dominance that are not reducible to racism or a "clash of civilizations" but are a cultural hegemony maintained by theatrical and academic institutions, and drama reviewer. These instances of legitimation are analyzed here as producers of an ideological discourse, the study of which challenges the posture of neutrality that accompanies the autonomy of art.Quelques critiques universitaires ont été écrites sur des spectacles récents prenant pour thématique le conflit israélo-palestinien, mais il n’existe pas d’étude d’ensemble à ce sujet. Par ailleurs, depuis le début des années 2000, plusieurs recherches se sont attachées à préciser les relations qu’entretiennent le théâtre et la politique. Cette thèse vise à approfondir cette réflexion à partir des transferts culturels d’œuvres israéliennes et palestiniennes vers la France, des années 1970 à nos jours.Pour ce faire la méthodologie mise en œuvre articule historiographie du théâtre, histoire des représentations théâtrales et étude du champ de production culturelle en diachronie. Elle a permis de mettre en évidence la persistance de l’Orientalisme renforcé par le déphasage historique entre la France et Israël et l’inégal développement entre la France et la Palestine. La représentation théâtrale peut offrir un espace de résistance aux assignations identitaires subies par les artistes d’Israël et de Palestine, ou bien reproduire les rapports de domination lisibles à travers le degré de légitimité des dramaturg(i)es. La thèse rappelle la complexité des rapports de domination qui ne sont pas réductibles au racisme ou à un « choc de civilisations » mais relèvent d’une hégémonie culturelle entretenue par les institutions théâtrales et universitaires, et critiques dramatiques. Ces instances de légitimation sont analysées ici en tant que productrices d’un discours idéologique dont l’étude remet en question la posture de neutralité qui accompagne l’autonomie de l’art