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Lies in Plato’s Republic: poems, myth, and noble lie
No full textInternational audienceAbstract: In this paper, I argue that 1) the ostensible inconsistency between the judgments of value on different kinds of lying, like poetry, fabricated story, myth and noble lies, is not a veritable one, and 2) Plato does not hold a utilitarian position on the question of lying, or making up something false to be more precise, and lies do not turn into noble lies once they are told to be in the service of some superior purpose. Plato does state in Book II of the Republic that the veritable lie (ἀληθῶς ψεῦδος) is what all gods and all man hate (382a), and poets must be punished for deceiving people by linking the Supreme Being to its contrary. But Plato also discusses the useful lie, especially the one lie that is necessary for the unity and stability of the polis: the Noble Lie. Neither useful lies nor noble lies can be acceptable just because we can make a use out of it, and it does not hold either that the greater the use we can make out of a lie, the nobler a lie is. A true lie (ἀληθῶς ψεῦδος) for Plato is the kind of lie leading people to believe that the hierarchy of the forms can be reordered in any way, and we can make random associations between the forms, like forming the relation between gods and the action of war. On the other hand, useful lies and the noble lies are in fact a duplicate of the order of the forms. This order, which articulates forms, is what makes thinking of truth possible, and we can later find this idea of the order of the forms which allows us to think truth and falsity in both the Theaetetus and the Sophist.Keywords: Lie, imitation, dialectic, falsehoo
Etre une compositrice japonaise en France aujourd'hui : entre tradition et mondialisation
No full textA Digital Humanities Approach to Cultural Translation in Robert Southey’s Amadis of Gaul
No full textBeam based characterization of the European Synchrotron Radiation Facility Extremely Brilliant Source short range wakefield model
No full textInternational audienceThe European Synchrotron Radiation Facility (ESRF) storage ring (SR) has been dismantled and replaced by the Extremely Brilliant Source (EBS) which has now been commissioned. This new fourth generation light source has much smaller vacuum chambers than its predecessor, which necessitates a careful optimization of the vacuum systems and an accurate impedance model to be able to deliver all beam modes at the design current and predict future machine performance in the presence of strong collective effects. This paper will report on the first beam based measurements with a single bunch in order to characterize the short range wakefield model of the EBS SR and to make a first comparison with predictions. The results from transverse instability thresholds and tune shift measurements will be presented, as well as bunch length and phase variation with the current. Microwave instability threshold measurements have shown some discrepancy with predictions, which could arise from welding defects in the machining of the chambers. These discrepancies and other possible causes will be discussed
Tremplin ou placard. Réflexions sur les institutions de l'Union européenne à partir de la série Borgen
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Meta-Heuristics Approach for Arrival Sequencing and Delay Absorption through Automated Vectoring
No full textInternational audienceThe continuous increase in air traffic compelsmajor airports to optimize their resources and enhance theirTerminal Maneuvering Airspace (TMA) operations. The pri-mary constraint to increasing airport capacity is the requiredseparation minima between pairs of aircraft arriving throughthe same approach routes. RECAT-EU is a revised global wakeseparation minima scheme released by EUROCONTROL in2018. This suggested a reduction in separation minima betweencertain aircraft pairs while maintaining safety levels. However, itincreases in separation minima scheme complexity by doublingthe number of non-minimum radar separation (MRS) values.In this work, a Meta-Heuristic based optimization model isproposed to sequence arrival flights based on the RECAT-EUseparation scheme, which can provide an optimized vectoringto ensure flights absorb their assigned delays before reachingthe final approach fix. Findings show that the proposed modelis able to generate an optimized landing sequence for 50 arrivalflights in a computation time of 16 seconds. It also suggests thatthe proposed algorithm’s computational time increases linearlywith increasing the number of flights. Furthermore, trajectoryvectoring results demonstrate that 85% of the assigned delayscould be absorbed by flying the proposed vectored trajectories
A comparison between the finite element method and a kinematic model derived from robot swarms for first and second gradient continua
No full textInternational audienceAbstract In this paper, we consider a deformable continuous medium and its discrete representation realized by a lattice of points. The former is solved using the classical variational formulation with the finite element method. The latter, a 2D discrete “kinematic” model, instead is conceived to determine the displacements of the lattice points depending on interaction rules among them and thus provides the final configuration of the system. The kinematic model assigns the displacements of some points, so-called leaders, by solving Newton’s law; the other points, namely followers, are left to rearrange themselves according to the lattice structure and the flocking rules. These rules are derived from the effort to describe the behaviour of a robot swarm as a single whole organism. The advantage of the kinematic model lies in reducing computational cost and the easiness of managing complicated structures and fracture phenomena. In addition, generalizing the discrete model to non-local interactions, such as for second gradient materials, is easier than solving partial differential equations. This paper aims to compare and discuss the deformed configurations obtained by these two approaches. The comparison between FEM and the kinematic model shows a reasonable agreement even in the case of large deformations for the standard case of the first gradient continuum
