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Pantheon : quand télécharger son esprit devient possible, au ciné
No full texthttps://www.cortex-mag.net/pantheon-quand-telecharger-son-esprit-devient-possible-au-cine/En 2022, la série américaine Pantheon a remis au goût du jour le téléchargement du cerveau, thème SF traité dès 1984 dans le roman cyberpunk Neuromancien. L’animé interroge des problématiques importantes en neurosciences tels que la dualité corps-esprit et notre capacité à interagir avec les machines
Roger Rocher, football business pioneer in France with the presidency of the Association Sportive de Saint-Étienne
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Intermediate cellular regeneration counteracts the stop in methanol production from methane by Methylosinus trichosporium OB3b
No full textInternational audienceMethylosinus trichosporium OB3b stands out as a methanotrophic model strain, widely reported for its high productivity of exogenous methanol from methane. However, the development of this attractive bioprocess is hindered by a limited production time rounding 20 h. The causes of MeOH production stop are not fully understood yet. This work investigated potential cytotoxic impacts of EDTA and NaCl, enzymatic inhibitors together added in the reaction medium to avoid the spontaneous methanol overoxidation. The tested NaCl concentrations did not refrain bacterial cells from proliferating normally, discarding osmotic stress phenomena. But EDTA addition appeared mandatory to yield an efficient MeOH production. Up to date, EDTA precise mode of action is not fully understood and several hypotheses have been reported. In this study, prior EDTA saturation with Cu2+ ions had no effect on MeOH production, suggesting EDTA did not chelate MMO metallic cofactor. EDTA action was consequently assumed to target cell membrane compounds and affect cell integrity. Regenerating cells in their native culture conditions (i.e. without inhibitors) appeared allowing them to recover their hydroxylating activity and produce MeOH with a productivity similar to the initial one, in a faster way than re-cultivation of the bacteria
Organic-directed crystallization of Na-free Y zeolite with controlled framework composition
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Unraveling the role of iron in electrolysis-peroxyacetic acid synergy for waste activated sludge dewaterability enhancement
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Euclid preparation. Testing analytic models of galaxy intrinsic alignments in the Euclid Flagship simulation
No full textInternational audienceWe model intrinsic alignments (IA) in Euclid's Flagship simulation to investigate its impact on Euclid's weak lensing signal. Our IA implementation in the Flagship simulation takes into account photometric properties of galaxies as well as their dark matter host halos. We compare simulations against theory predictions, determining the parameters of two of the most widely used IA models: the Non Linear Alignment (NLA) and the Tidal Alignment and Tidal Torquing (TATT) models. We measure the amplitude of the simulated IA signal as a function of galaxy magnitude and colour in the redshift range . We find that both NLA and TATT can accurately describe the IA signal in the simulation down to scales of -Mpc. We measure alignment amplitudes for red galaxies comparable to those of the observations, with samples not used in the calibration procedure. For blue galaxies, our constraints are consistent with zero alignments in our first redshift bin , but we detect a non-negligible signal at higher redshift, which is, however, consistent with the upper limits set by observational constraints. Additionally, several hydrodynamical simulations predict alignment for spiral galaxies, in agreement with our findings. Finally, the evolution of alignment with redshift is realistic and comparable to that determined in the observations. However, we find that the commonly adopted redshift power-law for IA fails to reproduce the simulation alignments above . A significantly better agreement is obtained when a luminosity dependence is included, capturing the intrinsic luminosity evolution with redshift in magnitude-limited surveys. We conclude that the Flagship IA simulation is a useful tool for translating current IA constraints into predictions for IA contamination of Euclid-like samples
Search for dark matter produced in association with a Higgs boson decaying to bottom quarks in proton-proton collisions at = 13 TeV
No full textInternational audienceA search for dark matter particles produced in association with a Higgs boson decaying to a bottom quark-antiquark pair in proton-proton collisions at = 13 TeV is presented. The data, collected with the CMS detector at the LHC, correspond to an integrated luminosity of 101 fb. The analysis is performed in exclusive categories targeting both Lorentz-boosted (merged) and resolved b jet pair topologies, covering a wide range of Higgs boson transverse momentum. A statistical combination is made with a previous search using data collected in 2016 and corresponding to an integrated luminosity of 35.9 fb. The observed data agree with the standard model background predictions. Constraints are placed on models predicting new particles or interactions, such as those in the simplified frameworks of baryonic-Z' and 2HDM+a, where the latter is a type-II two-Higgs-doublet model featuring a heavy pseudoscalar with an additional light pseudoscalar. Upper limits at 95% confidence level are set on the production cross section for these models. For the baryonic-Z' model, Z' boson masses below 2.25 TeV are excluded for a dark matter particle candidate mass of 1 GeV. In the 2HDM+a model, heavy pseudoscalar masses between 850 and 1300 GeV are excluded for a light pseudoscalar mass of 350 GeV
Analyse des critères qu'il convient de prendre en considération pour déterminer si un trust de droit étranger doit être regardé comme ayant un caractère discrétionnaire et irrévocable au regard de la loi fiscale.
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Panda as the flagship of China’s digital diplomacy: Rethinking the intersection of network and emotional narrative strategy
No full textInternational audienceThis chapter aims to rethink the mediated communication ontology of China’s digital public diplomacy, taking digital panda diplomacy – the most successful public diplomacy campaign of China on social media in more than a decade of digital diplomacy – as a case to identify the emotional network communication structure and narrative strategies led by Beijing, so as to serve the Communist Party of China (CPC) ’s public diplomacy goals of telling China’s stories and demonstrating positive energy towards foreign publics. Chinese media have constructed a journalistic paradigm that promotes feelings of happiness in message receivers. The online production of panda-themed news stories involves three strategies: (a) anthropomorphic rhetoric that implements human-like expressions to make pandas seem “human,” (b) visual images of pandas to mediate relevant knowledge, and (c) manipulation of panda imagery to frame political and public-diplomatic messages that endorse China and its government
