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Complete Abstractions for Verification of Polymorphic Functions with Equality -- extended version
No full textThis paper is concerned with automatically proving properties on polymorphic programs over algebraic data types by reducing the verification of such properties to the verification of properties on monomorphised, abstract programs. For programs without polymorphic equality, the reduction exploits Wadler's "Theorem for Free". For programs using polymorphic equality, we provide a sufficient condition for the reduction to hold. The condition relies on the existence of a locally complete abstraction function whose image is a finite set of arbitrary constants chosen for abstracting primitive values. When such a condition exists, the number of arbitrary constants depends on the functions under concern and the properties to prove. We present an implementation that automatically computes the number of constants and, thus, ensures that proving the polymorphic case with equality can be reduced to the proof carried out on a monomorphic instance of the program. Experimental results show that this reduction is indeed possible with small abstract domains. Target programs support user-defined recursive ADTs and recursive first-order functions.</div
Hetero-lanthanide coordination polymers as a posteriori temperature markers
No full textInternational audienceAfter many years of studying the luminescence properties of coordination polymers based on lanthanide elements, the question now is to determine if these properties could vary with temperature. Based on the thermogravimetric analyses, it is possible to observe several steps corresponding to various phase changes (dehydration, decomposition, etc.), which could be evidenced by a change in luminescence. The five compounds studied here are based on three different ligands: 1,4-carboxyphenylboronic acid (H2cpb), tetrachlorophthalic acid (H2tcpa), and trimesic acid (H3tma). Three out of the five are based on a single emissive lanthanide, terbium or europium, and the remaining two are heteronuclear compounds based on these two lanthanides: [Tb(cpb) (cpbOH)(H2O)2]infinity (1), [Eu2(tcpa)3(H2O)6]infinity (2), [Y0.8Eu0.2(tma)(H2O)5 center dot 3.5H2O]infinity (3), [Eu0.1Tb0.9(cpb)(cpbOH) (H2O)2]infinity (4) and [Eu0.4Tb1.6(tcpa)3(H2O)6]infinity (5). Based on their thermogravimetric analyses, key temperatures were identified, at which the compounds were heated before studying their luminescence properties a posteriori. Finally, preliminary tests of dispersion in plastic matrices are conducted to observe the impact of the host matrix on the observed luminescence properties
Cyano‐Capped Porphyrins Embedded With First‐Row Transition Metals and Evaluation for Electrocatalytic Syngas Production
No full textInternational audienceHerein, we present and discuss the synthesis and characterization of cobalt‐, nickel‐ and copper‐based tetraphenylporphyrin complexes comprising cyano groups at the ortho position of the meso ‐phenyl rings. Interestingly, these complexes were obtained in a straightforward manner, in sharp contrast with the unsuccessful preparation of the analogous iron derivative. As a proof‐of‐concept, we further demonstrate that the readily prepared complexes, which are based on first‐row and Earth's crust abundant metals, are active in the environmentally‐relevant CO 2 reduction, enabling syngas (H 2 /CO) production under electrochemical conditions. The presence of hanging, dative cyano groups nearby the electrocatalytically active site provides opportunities for second coordination sphere engineering aimed at optimizing activity and product selectivity
The 2025 Report on the Human Proteome from the HUPO Human Proteome Project
No full textInternational audienceThe HUPO Human Proteome Project (HPP) aims to complete the human protein parts list by detecting evidence of expression and of function for all proteins in the human proteome, and make proteomics an integral part of multiomics studies of health and disease. Here we describe the state of the 2025 HPP reference proteome of 19,435 proteins, based on GENCODE v48, UniProtKB 2025_03, Human Protein Atlas 24, MassIVE-KB 2023, and PeptideAtlas 2025-01. We evaluate the progress in the past year, with 93.6% of the proteome detected, and examine the proteins that have not yet been detected to determine where further progress can be made. We also evaluate the progress in determining at least one function for every protein in the HPP target list, finding an increase of 288 proteins in the highest category (FE1) to 5562. Finally, we provide highlights from 12 Biology/Disease-based HPP initiatives, HPP resource pillars, and π-HuB
Static and dynamic Monte Carlo simulations of phonon drag effects on thermoelectric properties in silicon nanostructures
No full textThermoelectric transport in silicon nanofilms is investigated using a self-consistent electro-thermal Monte Carlo simulator that couples electron dynamics to a phonon bath with spatially varying temperature. A key novelty of this work is the explicit inclusion of the phonon-drag contribution, implemented by modifying the electron-phonon momentum exchange based on the local deviation of the phonon distribution from equilibrium. The method is validated against bulk silicon data and extended to incorporate rough boundary scattering for both electrons and phonons, yielding excellent agreement with experimental measurements on nanofilms. We also analyze the transient regime and show that a temperature bias produces a slower current response than a voltage bias, although the phonon-drag effect itself tends to accelerate the response. These results demonstrate that the proposed framework provides a powerful tool for predicting both steady-state and time-dependent thermoelectric behavior in semiconductor nanostructures
Local controllability around a regular solution and null-controllability of scattering solutions for semilinear wave equations
No full textInternational audienc
How to Achieve the Best Trade-off Between Robustness and Performance
No full textThe work presents an innovative approach to addressing the trade-off between robustness and performance, known as the optimality criterion. Moreover, the procedure relies on well-established methods that effectively support the search for the best trade-off, namely multi-criteria optimization problem. Thus, by separating the robustness and performance problems, it becomes possible to achieve the best trade-off between these two criteria. In this search for a trade-off, two complementary approaches are combined: robust control for the closed-loop system by minimizing Hinf-norm, and performance optimization in open-loop by minimizing l2-norm. This combination is made possible by the Youla-Kučera parameterization. However, to implement this parameterization in the presence of model errors, a new approach is used: estimating the Youla-Kučera parameterization.</div
Civil Liability of Trading Platforms for Bitcoinand Ether White Papers
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Les artisans sur la colline. Les céramiques achromes et les pithoi à Incoronata : échanges de techniques et de fonctions.
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Janus enzymatic membrane contactor-reactor for volatile organic compounds remediation
No full textInternational audienceThe enzymatic remediation of hydrophobic Volatile Organic Compounds (VOCs) from water is hindered by low mass transfer of the gas phase to the aqueous phase. A resolution to this challenge is the development of a compact stripping process whereby VOCs captured in an oil phase are degraded at the oil/aqueous interface, allowing for continuous mass transfer and simultaneous degradation of the compounds. Here, a novel Janus Enzymatic Membrane Contactor-Reactor (EMCR) is demonstrated by engineering electrospun Cellulose Acetate (CA)/Poly (VinylDiFluoride) (PVDF) mat membranes selectively grafted with Horseradish Peroxidase (HRP) to support the degradation of VOCs. The membranes were tested for the diffusion of phenol in a flat-sheet configuration, connecting a feed of Poly (DimethylSiloxane) (PDMS) and an aqueous phase as permeate. The diffusion rates of the phenol across PDMS/membrane and membrane/aqueous phase interphases, as well as conversion rates with the surface-grafted HRP, were evaluated to optimise the morphology and reactivity of the enzymatic membrane reactors. The best performance was found for the system with immobilised HRP on Janus membrane activated by 1.0 v/v% of GlutarAldehyde (GA), leading phenol degradation rate of 8.7 and sdot;10- 4 +/- 2.8 and sdot;10- 5 mg of degraded phenol min- 1 mg of enzyme- 1The results highlight the effectiveness of coupling the adsorption stage with an enzymatic degradation as a potential strategy for hydrophobic VOC removal from mixed solvent environments