cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
D 8.1 CODECS Data Management Plan
Creators: name: Pavone, Gina
name: Brizioli, Sabrina
name: COLCELLI, VALENTINA
Publisher: name: Zenodo
Year: 2023

description: Submitted draft not yet approved by the EC
This deliverable is the initial version of the Data Management Plan (DMP) of the CODECS project delivered at M6. This DMP outlines comprehensive strategies to ensure the effective handling and management of research data throughout the project lifecycle. It will be kept updated as a living document.
La 5G et les ondes millimétriques
Creators: name: Collet, Patrice
Publisher: name: SEE
Year: 2020

description: L’utilisation des fréquences millimétriques ouvre un nouveau champ à la 5G en raison des très haut débits qu’elles sont susceptibles de permettre. Ces fréquences sont déjà testées dans certains pays, notamment aux Etats-Unis. Toutefois, compte tenu notamment des limitations inhérentes à leur propagation, il semble se confirmer qu’elles ne peuvent être utilisées qu’en complément à une couverture continue obtenue avec des fréquences inférieures à 6 GHz.
Influence of disorder on the structural phase transition and magnetic interactions in Ba$_{3-x}$Sr$_x$Cr$_2$O$_8$
Creators: name: Grundmann, Henrik
name: Medarde, Marisa
name: Sheptyakov, Denis
name: Schilling, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin dimer system $\mathrm{Ba}_{3-x}\mathrm{Sr}_x\mathrm{Cr_2O_8}$ is a solid solution of the triplon Bose-Einstein condensation candidates $\mathrm{Ba_3Cr_2O_8}$ and $\mathrm{Sr_3Cr_2O_8}$. The magnetic intradimer interaction constant $J_0$ in this spin system can be tuned by varying the Sr content $x$. Very interestingly, this variation of $J_0$ with $x$ is highly nonlinear. In the present study, we show that this peculiar behavior of $J_0$ can be only partly explained by the changes in the average crystal structure alone. We report on neutron powder diffraction experiments to probe the corresponding structural details. Performing extended Hückel tight binding calculations based on those structural details obtained at liquid helium temperatures, we found that the change of the magnetic interaction constant can be well reproduced by taking into account the presence of a structural transition due to the Jahn-Teller active Cr$^{5+}$-ions. This transition, lifting the orbital degeneracy and thereby the magnetic frustration in the system, is heavily influenced by disorder in the system arising from partially exchanging Ba with Sr.
Selon une étude suédoise, le contenu en CO2 des batteries Li-ion serait moins important qu’on ne le pensait
Creators: name: Hauet, Jean-Pierre
Publisher: name: SEE
Year: 2020

description: Le contenu en CO2 des batteries Li-ion se situerait entre 61 et 106 kg de CO2eq par kWh de capacité, soit sensiblement moins que les 150 à 200 kg de CO2 qui résultaient d’une précédente étude.
La sérendipité vient en aide à la technologie des ordinateurs quantiques
Creators: name: Leconte, Marc
Publisher: name: SEE
Year: 2020

description: Il existe encore des découvertes accidentelles consistant à découvrir un autre phénomène que celui recherché. C’est ce qui est arrivé à des chercheurs australiens qui ont mis en évidence un phénomène théorisé depuis longtemps mais jamais observé et présentant un intérêt pour la réalisation de qubits destinés aux ordinateurs quantiques.
La validation des logiciels : un enjeu critique majeur
Creators: name: Vallée, Frédérique
Publisher: name: SEE
Year: 2020

description: Les logiciels embarqués dans les systèmes complexes modernes ont la capacité de transformer les objets du monde physique en objets numériques, intelligents, autonomes et communicants. L’émergence des technologies dites de « l’objet connecté » amplifie cette révolution. Le déploiement généralisé des systèmes à logiciel prépondérant impacte l’ensemble des activités industrielles et des services pour lesquels la maîtrise de la disponibilité et de la sécurité de ces derniers constitue un élément-clé.
Updated constraints from the effective field theory analysis of BOSS power spectrum on Early Dark Energy
Creators: name: Simon, Théo
name: Zhang, Pierre
name: Poulin, Vivian
name: Smith, Tristan L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Analyses of the full shape of BOSS DR12 power spectrum using the one-loop prediction from the Effective Field Theory of Large-Scale Structure (EFTBOSS) have led to new constraints on extensions to the $Λ$CDM model, such as Early Dark Energy (EDE) which has been suggested as a resolution to the "Hubble tension". In this paper, we re-assess the constraining power of the EFTBOSS on EDE in light of a correction to the normalization of BOSS window functions. Overall we find that constraints from EFTBOSS on EDE are weakened, and represent a small change compared to constraints from Planck and the conventional BAO/$fσ_8$ measurements. The combination of Planck data with EFTBOSS provides a bound on the maximal fractional contribution of EDE $f_{\rm EDE}<0.083$ at 95% C.L. (compared to $<0.054$ with the incorrect normalization, and $<0.088$ without full-shape data) and the Hubble tension is reduced to $2.1σ$. However, the more extreme model favored by an analysis with just data from the Atacama Cosmology Telescope is disfavored by the EFTBOSS data. We also show that the updated Pantheon+ Type Ia supernova analysis can slightly increase the constraints on EDE. Yet, the inclusion of the SN1a magnitude calibration by SH0ES strongly increases the preference for EDE to above $5σ$, yielding $f_{\rm EDE}\sim 0.12^{+0.03}_{-0.02}$ around the redshift $z_c=4365^{+3000}_{-1100}$. Our results demonstrate that EFTBOSS data (alone or combined with Planck data) do not exclude the EDE resolution of the Hubble tension.
description: 17 + 13 pages, 11 figures. Comments welcome!
Probing $R$-parity violation in $B$-meson decays to a baryon and a light neutralino
Creators: name: Dib, Claudio O.
name: Helo, Juan Carlos
name: Lyubovitskij, Valery E.
name: Neill, Nicolás A.
name: Soffer, Abner
name: Wang, Zeren Simon
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a search for $B$ meson decays to a baryon plus missing energy at the Belle II experiment to probe supersymmetry with a GeV-scale lightest neutralino ${\tildeχ_1^0}$ and $R$-parity violation (RPV). We perform analytic computations of the signal branching fractions in the framework of effective field theory, with a single nonzero RPV operator $λ''_{ij3}\bar{U}_{i}^c\bar{D}_{j}^c\bar{D}_3^c$, where $i,j=1,2$. The hadronic form factors are calculated using an SU(3) phenomenological Lagrangian approach for the proton, as well as several hyperons and charmed baryons. Since the decay of the neutralino is kinematically and CKM suppressed in this theoretical scenario, it decays outside the detector and appears experimentally only as missing energy. We detail the analysis techniques at the experimental level and estimate the background in the ${B^+ \to p {\tildeχ_1^0}}$ search using published results for $B^+\to K^+ ν\barν$. Our final sensitivity plots are shown for both $λ''_{113}$ versus the squark mass $m_{\tilde{q}}$ and $λ''_{113}/m^2_{\tilde{q}}$ versus the neutralino mass $m_{\tildeχ_1^0}$. We find that the search at Belle II could probe $λ''_{113}/m^2_{\tilde{q}}$ down to the order of $10^{-8}$ GeV$^{-2}$ in the kinematically allowed $m_{\tildeχ_1^0}$ range. We also obtain current limits on $λ''_{123}$ by recasting an existing search interpreted as ${B^0 \to Λ^0 {\tildeχ_1^0}}$, and comment about searches for ${B^+ \to Σ^+ {\tildeχ_1^0}}$, ${B^0 \to Σ^0 {\tildeχ_1^0}}$, ${B^+ \to Λ_c^+ {\tildeχ_1^0}}$, and ${B^+ \to Ξ_c^+ {\tildeχ_1^0}}$. In closing, we briefly discuss potential searches at the LHCb and BESIII experiments.
description: 30 pages, 8 figures. Matches published version
Quand le prix du MWh devient négatif
Le confinement révèle des situations amenées à se reproduire
Creators: name: Meyer, Bruno
Publisher: name: SEE
Year: 2020

description: La crise du Covid-19 a mis en lumière ce phénomène a priori surprenant : le prix de l’électricité peut devenir négatif. Quand les énergies renouvelables intermittentes dites fatales produisent à plein régime et que la consommation baisse, les prix de marché chutent. Au point que les opérateurs sont prêts à payer pour trouver preneurs de cette matière première qui ne se stocke pas.
title: The SYSCID map: a graphical and computational resource of molecular mechanisms across rheumatoid arthritis, systemic lupus erythematosus and inflammatory bowel disease
Creators: name: Marcio Luis Acencio
name: Marek Ostaszewski
name: Alexander Mazein
name: Philip Rosenstiel
name: Konrad Aden
name: Neha Mishra
name: Vibeke Andersen
name: Prodromos Sidiropoulos
name: Aggelos Banos
name: Anastasia Filia
name: Souad Rahmouni
name: Axel Finckh
name: Wei Gu
name: Reinhard Schneider
name: Venkata Pardhasaradhi Satagopam
Publisher: name: LCSB
Year: 2023

description: Chronic inflammatory diseases (CIDs), including inflammatory bowel disease (IBD), rheumatoid
arthritis (RA) and systemic lupus erythematosus (SLE) are thought to emerge from an impaired complex network of inter- and intracellular biochemical interactions among several proteins and small chemical compounds under strong influence of genetic and environmental factors. CIDs are characterised by shared and disease-specific processes, which is reflected by partially overlapping genetic risk maps and pathogenic cells (e.g., T cells). Their pathogenesis involves a plethora of intracellular pathways. The translation of the research findings on CIDs molecular mechanisms into effective treatments is challenging and may explain the low remission rates despite modern targeted therapies. Modelling CID-related causal interactions as networks allows us to tackle the complexity at a systems level and improve our understanding of the interplay of key pathways. Here we report the construction, description, and initial applications of the SYSCID map (https://syscid.elixir-luxembourg.org/), a mechanistic causal interaction network covering the molecular crosstalk between IBD, RA and SLE. We demonstrate that the map serves as an interactive, graphical review of IBD, RA and SLE molecular mechanisms, and helps to understand the complexity of omics data.
Examples of such application are illustrated using transcriptome data from time-series gene
expression profiles following anti-TNF treatment and data from genome-wide associations studies that enable us to suggest potential effects to altered pathways and propose possible mechanistic biomarkers of treatment response.
Aux Etats-Unis, le coronavirus ne fait pas oublier les virus informatiques
Creators: name: Hauet, Jean-Pierre
Publisher: name: SEE
Year: 2020

description: En pleine crise du coronavirus, un décret présidentiel signé Donald Trump met sous surveillance tous les matériels équipant le réseau de transport électrique américain. La menace de cyber-attaques se déplace du terrain des attaques directes vers celles construites à partir des chaînes d’approvisionnement.
Les nouveaux lasers : des microlasers aux lasers extrêmes
Creators: name: Mourou, Gérard
Publisher: name: SEE
Year: 2020

description: L’arrivée de la lumière cohérente a représenté une révolution pour la science et la société. Sa grande longueur de cohérence associée à son champ électrique élevé, a permis au laser la production d’effets non linéaires dans les solides, gaz et plasmas ce qui a augmenté son champ d’applications de façon considérable.
Predicting the cascading dynamics in complex networks via the bimodal failure size distribution
Creators: name: Zhong, Chongxin
name: Xing, Yanmeng
name: Fan, Ying
name: Zeng, An
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Cascading failure as a systematic risk occurs in a wide range of real-world networks. Cascade size distribution is a basic and crucial characteristic of systemic cascade behaviors. Recent research works have revealed that the distribution of cascade sizes is a bimodal form indicating the existence of either very small cascades or large ones. In this paper, we aim to understand the properties and formation of such bimodal distribution of cascade sizes in complex networks, and further predict the final cascade size. We first find that the bimodal distribution of cascade sizes is ubiquitous in both synthetic and real networks. Moreover, the large cascade sizes distributed in the right peak of bimodal distribution are resulted from either the failure of nodes with high load at the first step of the cascade or multiple rounds of cascades triggered by the initial failure. Accordingly, we propose a hybrid load metric (HLM), which combines the load of the initial broken node and the load of failed nodes triggered by the initial failure, to predict the final size of cascading failures. Finally, we validate the effectiveness of HLM by computing the accuracy of identifying the cascades belonging to the right and left peaks of the bimodal distribution. The results show that HLM is a better predictor than commonly used network centrality metrics in both synthetic and real-world networks.
Effects of $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$ on $K^*Λ$ photoproduction
Creators: name: Kim, Sang-Ho
name: Hosaka, Atsushi
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We reinvestigate $K^*Λ(1116)$ photoproduction off the nucleon target, based on an effective Lagrangian approach. We include higher nucleon resonances such as $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$, of which the data are taken from the 2012 edition of Review of Paritcle Physics, in addition to the $t$-channel diagrams ($K$, $K^*$, and $κ$), the $s$-channel nucleon, and $u$-channel hyperon($Λ$, $Σ$, and $Σ^*$) contributions. We find that the $N(2120)\,3/2^-$ and $N(2190)\,7/2^-$ resonances are essential in describing the new CLAS data for charged $K^*$ photoproduction. On the other hand, they rarely affect for neutral $K^*$ photoproduction.
description: 16 pages, 14 figures
Generation and propagation of nonlinear quasi-normal modes of a Schwarzschild black hole
Creators: name: Lagos, Macarena
name: Hui, Lam
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the analysis of a binary black hole coalescence, it is necessary to include gravitational self-interactions in order to describe the transition of the gravitational wave signal from the merger to the ringdown stage. In this paper we study the phenomenology of the generation and propagation of nonlinearities in the ringdown of a Schwarzschild black hole, using second-order perturbation theory. Following earlier work, we show that the Green's function and its causal structure determines how both first-order and second-order perturbations are generated, and hence highlight that both of these solutions share some physical properties. In particular, we discuss the sense in which both linear and quadratic quasi-normal modes (QNMs) are generated in the vicinity of the peak of the gravitational potential barrier (loosely referred to as the light ring). Among the second-order perturbations, there are solutions with linear QNM frequencies (whose amplitudes are thus renormalized from their linear values), as well as quadratic QNM frequencies with a distinct spectrum. Moreover, we show using a WKB analysis that, in the eikonal limit, waves generated inside the light ring propagate towards the black hole horizon, and only waves generated outside propagate towards an asymptotic observer. These results might be relevant for recent discussions on the validity of perturbation theory close to the merger. Finally, we argue that even if nonlinearities are small, quadratic QNMs may be detectable and would likely be useful for improving ringdown models of higher angular harmonics and future tests of gravity.
description: Version accepted in PRD
Gaugeon Formalism for Perturbative Quantum Gravity
Creators: name: Upadhyay, Sudhaker
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we investigate the Yokoyama gaugeon formalism for perturbative quantum gravity in a general curved spacetime. Within the gaugeon formalism, we extend the configuration space by introducing vector gaugeon fields describing a quantum gauge degree of freedom. Such an extended theory of perturbative gravity admits quantum gauge transformations leading to a natural shift in the gauge parameter. Further we impose the Gupta-Bleuler type subsidiary condition to remove the unphysical gaugeon modes. To replace the Gupta-Bleuler type condition by more acceptable Kugo-Ojima type subsidiary condition we analyze the BRST symmetric gaugeon formalism. Further, the physical Hilbert space is constructed for the perturbative quantum gravity which remains invariant under both the BRST symmetry and the quantum gauge transformations.
description: 8 pages, No figure, Published version
Un nouveau câble transatlantique arrive en France
Creators: name: Collet, Patrice
Publisher: name: SEE
Year: 2020

description: Un nouveau câble sous-marin, Dunant, atterrit en France. Par sa technologie et par l’environnement de son développement, il illustre l’évolution du monde des câbles sous-marins qui constituent une infrastructure essentielle du réseau Internet mondial, un monde largement dominé par les grands acteurs nord-américains.
A cross-correlation analysis of CMB lensing and radio galaxy maps
Creators: name: Piccirilli, Giulia
name: Migliaccio, Marina
name: Branchini, Enzo
name: Dolfi, Arianna
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the origin of the large clustering signal detected in the angular distribution of the radio sources in the TGSS catalog. To do so, we cross-correlate the angular position of the radio sources with the Cosmic Microwave Background (CMB) lensing maps from the Planck satellite, since cross-correlation is expected to be insensitive to source of possible systematic errors that may generate a spurious clustering signal. The amplitude of the angular cross-correlation spectrum of TGSS-CMB lensing turns out to be much smaller than that of the TGSS auto-spectrum and consistent with that of the NVSS-CMB lensing cross spectrum. A result that confirms the spurious origin of the TGSS large scale clustering signal. We further compare the two cross-spectra with theoretical predictions that use various prescriptions from the literature, for the redshift counts of the radio sources, $N(z)$, and their bias $b(z)$. These models, that assume a $Λ$CDM cosmology and that were proposed to fit the NVSS auto-spectrum, fail to match the cross-spectra on large scale, though not by far. When the bias relation is let free to vary (model predictions are rather insensitive to the choice of the N(z)) the quality of the fit improves but a large bias ($ b_g = 2.53 \pm 0.11$) is required, which does not seem to be consistent with the observed clustering amplitude of the radio sources in the local universe. Whether this large cross-correlation amplitude represents a problem for the radio sources models, or for the $Λ$CDM framework itself, can only be clarified using next generation datasets featuring large number of objects. What our analysis does show is the possibility to remove the $N(z)$ and $b(z)$ degeneracy by combining angular and cross-correlation analyses.
description: 21 pages, 18 figures
Quand le prix du MWh devient négatif
Creators: name: Meyer, Bruno
Publisher: name: SEE
Year: 2020

description: La crise du Covid-19 a mis en lumière ce phénomène a priori surprenant : le prix de l’électricité peut devenir négatif. Quand les énergies renouvelables intermittentes dites fatales produisent à plein régime et que la consommation baisse, les prix de marché chutent. Au point que les opérateurs sont prêts à payer pour trouver preneurs de cette matière première qui ne se stocke pas.
Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications
Creators: name: Zhang, Xianping
name: Yao, Chao
name: Lin, He
name: Cai, Yao
name: Chen, Zhen
name: Li, Jianqi
name: Dong, Chiheng
name: Zhang, Qianjun
name: Wang, Dongliang
name: Ma, Yanwei
name: Oguro, Hidetoshi
name: Awaji, Satoshi
name: Watanabe, Kazuo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: 122 type pnictide superconductors are of particular interest for high-field applications because of their large upper critical fields Hc2 (> 100 T), low Hc2 anisotropy r (< 2), and high thin-film critical current densities Jc (> 1 MA/cm2 at 4.2 K). Successful magnet applications require fabrication of polycrystalline superconducting wires that exhibit large in-field Jc, which is limited by poor grain coupling and weak-link behavior at grain boundaries. Here we report our recent achievement in the developing Sr0.6K0.4Fe2As2 tapes with transport Jc up to 0.1 MA/cm2 at 10 T and 4.2 K. This value is by far the highest ever recorded for iron based superconducting wires and has surpassed the threshold for practical application for the first time. The synergy effects of enhanced grain connectivity, alleviation of the weak-link behavior at grain boundaries, and the strong intrinsic pinning characteristics led to the superior Jc performance exhibited in our samples. This advanced Jc result opens up the possibility for iron-pnictide superconducting wires to win the race in high-field magnet applications.
description: 18 pages, 6 figures, published version
Covid-19 : les réseaux de communication ont montré leur résilience
Creators: name: Debaille, Suzanne
Publisher: name: SEE
Year: 2020

description: Pendant la crise sanitaire, la mission des opérateurs des télécoms a été plus que jamais sensible. Les réseaux ont apporté la preuve de leur résilience mais des enseignements sont déjà à en tirer.
A study of the parity-odd nucleon-nucleon potential
Creators: name: de Vries, J.
name: Li, N.
name: Meißner, Ulf-G.
name: Kaiser, N.
name: Liu, X. -H.
name: Zhu, S. -L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate the parity-violating nucleon-nucleon potential as obtained in chiral effective field theory. By using resonance saturation we compare the chiral potential to the more traditional one-meson exchange potential. In particular, we show how parameters appearing in the different approaches can be compared with each other and demonstrate that analyses of parity violation in proton-proton scattering within the different approaches are in good agreement. In the second part of this work, we extend the parity-violating potential to next-to-next-to-leading order. We show that generally it includes both one-pion- and two-pion-exchange corrections, but the former play no significant role. The two-pion-exchange corrections depend on five new low-energy constants which only become important if the leading-order weak pion-nucleon constant $h_π$ turns out to be very small.
description: Published version
Efficacité et dépendance dans la transition électrique européenne
Creators: name: Percebois, Jacques
name: Pommeret, Stanislas
Publisher: name: SEE
Year: 2020

description: Les pays européens ont fortement réduit le contenu carbone de leur électricité, par le développement des énergies renouvelables notamment. Mais ce faisant, sont-ils devenus plus dépendants les uns des autres ?
Spin-Hall magnetoresistance in quasi-two-dimensional antiferromagnetic insulator/metal bilayer systems
Creators: name: Ishikawa, Takuto
name: Matsuo, Mamoru
name: Kato, Takeo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the temperature dependence of spin Hall magnetoresistance (SMR) in antiferromagnetic insulator (AFI)/metal bilayer systems. We calculate the amplitude of the SMR signal by using a quantum Monte Carlo simulation and examine how the SMR depends on the amplitude of the spin, thickness of the AFI layer, and randomness of the exchange interactions. Our results for simple quantum spin models provide a useful starting point for understanding SMR measurements on atomic layers of magnetic compounds.
description: 10 pages, 7 figures
Untitled Item
Creators: name: Ramamurthi, Anand
name: Carney, Sarah
name: broekelmann, thomas
name: Mecham, Robert P.
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified

description: Elastic fibers do not naturally regenerate in many proteolytic disorders, such as in abdominal aortic aneurysms,and prevent restoration of tissue homeostasis. We have shown drug-based attenuation of the stress activated protein kinase, JNK-2 to stimulate elastic matrix neoassembly and to attenuate cellular proteolytic activity. We now investigate if JNK2 gene knockdown with small interfering RNA (siRNA) provides greater specificity of action and improved regenerative/antiproteolytic outcomes in a proteolytic injury culture model of rat aneurysmal smooth muscle cells (EaRASMCs). A siRNA dose of 12.5 nM delivered with a transfection reagent significantly enhanced downstream elastic fiber assembly and maturation versus untreated EaRASMC cultures. The optimal siRNA dose was also delivered as a complex with a polymeric transfection vector, polyethyleneimine (PEI) in preparation for future in vivo delivery. Linear 25 kDa PEI-siRNA (5:1 molar ratio of amine to phosphate) and linear 40 kDa PEI-siRNA (2.5:1 ratio) were effective in downregulating the JNK2 gene, and significantly increasing expression of elastic fiber assembly proteins, and decreases in elastolytic matrix metalloprotease-2 versus treatment controls to significantly increase mature elastic fiber assembly. The current work has identified siRNA dosing and siRNA-PEI complexing conditions that are safe and effcient in stimulating processes contributing to improved elastic matrix neoassembly via JNK2 gene knockdown. The results represent a mechanistic basis of a broader therapeutic approach to reverse elastic matrix pathophysiology in tissue disorders involving aberrations of elastic matrix homeostasis, such as in aortic aneurysms.
Automatisation des métros : l’évolution du Communications-Based Train Control (CBTC)
Creators: name: Paul-Edouard Basse
name: Gimenez, Jean-Marie
name: De La Croix, Thomas Vaucher
name: Roy, Cécile
Publisher: name: SEE
Year: 2020

description: Deux voies du RER à Paris équivalent en capacité de transport à une autoroute de deux fois quatorze voies. Mais un tel flux de passagers doit être géré pour assurer une qualité de service et une sécurité irréprochables. C’est l’objet du système d’automatisme CBTC (Communications-Based Train Control) développé par Siemens Mobility et qui s’impose aujourd’hui dans le monde entier.
Thermodynamics of Einstein-Proca AdS Black Holes
Creators: name: Liu, Hai-Shan
name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study static spherically-symmetric solutions of the Einstein-Proca equations in the presence of a negative cosmological constant. We show that the theory admits solutions describing both black holes and also solitons in an asymptotically AdS background. Interesting subtleties can arise in the computation of the mass of the solutions and also in the derivation of the first law of thermodynamics. We make use of holographic renormalisation in order to calculate the mass, even in cases where the solutions have a rather slow approach to the asymptotic AdS geometry. By using the procedure developed by Wald, we derive the first law of thermodynamics for the black hole and soliton solutions. This includes a non-trivial contribution associated with the Proca "charge." The solutions cannot be found analytically, and so we make use of numerical integration techniques to demonstrate their existence.
description: 35 pages, Improved discussion of cases with logarithmic asymptotic fall offs
Target Selection and Validation of DESI Quasars
Creators: name: Chaussidon, Edmond
name: Yèche, Christophe
name: Palanque-Delabrouille, Nathalie
name: Alexander, David M.
name: Yang, Jinyi
name: Ahlen, Steven
name: Bailey, Stephen.
name: Brooks, David
name: Cai, Zheng
name: Chabanier, Solène
name: Davis, Tamara M.
name: Dawson, Kyle
name: de la Macorra, Axel
name: Dey, Arjun
name: Dey, Biprateep
name: Eftekharzadeh, Sarah
name: Eisenstein, Daniel J.
name: Fanning, Kevin
name: Font-Ribera, Andreu
name: Gaztañaga, Enrique
name: Gontcho, Satya Gontcho A
name: Gonzalez-Morales, Alma X.
name: Guy, Julien
name: Herrera-Alcantar, Hiram K.
name: Honscheid, Klaus
name: Ishak, Mustapha
name: Jiang, Linhua
name: Juneau, Stephanie
name: Kehoe, Robert
name: Kisner, Theodore
name: Kovács, Andras
name: Kremin, Anthony
name: Lan, Ting-Wen
name: Landriau, Martin
name: Guillou, Laurent Le
name: Levi, Michael E.
name: Magneville, Christophe
name: Martini, Paul
name: Meisner, Aaron M.
name: Moustakas, John
name: Muñoz-Gutiérrez, Andrea
name: Myers, Adam D.
name: Newman, Jeffrey A.
name: Nie, Jundan
name: Percival, Will J.
name: Poppett, Claire
name: Prada, Francisco
name: Raichoor, Anand
name: Ravoux, Corentin
name: Ross, Ashley J.
name: Schlafly, Edward
name: Schlegel, David
name: Tan, Ting
name: Tarlé, Gregory
name: Zhou, Rongpu
name: Zhou, Zhimin
name: Zou, Hu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Dark Energy Spectroscopic Instrument (DESI) survey will measure large-scale structures using quasars as direct tracers of dark matter in the redshift range 0.92.1. We present several methods to select candidate quasars for DESI, using input photometric imaging in three optical bands (g, r, z) from the DESI Legacy Imaging Surveys and two infrared bands (W1, W2) from the Wide-field Infrared Explorer (WISE). These methods were extensively tested during the Survey Validation of DESI. In this paper, we report on the results obtained with the different methods and present the selection we optimized for the DESI main survey. The final quasar target selection is based on a Random Forest algorithm and selects quasars in the magnitude range 16.599% purity for a nominal effective exposure time of ~1000s. With a 310 per sq. deg. target density, the main selection allows DESI to select more than 200 QSOs per sq. deg. (including 60 quasars with z>2.1), exceeding the project requirements by 20%. The redshift distribution of the selected quasars is in excellent agreement with quasar luminosity function predictions.
description: 21 pages, 21 figures, typos corrected, references added
The Gaia-ESO Survey: Preparing the ground for 4MOST & WEAVE galactic surveys. Chemical evolution of lithium with machine learning
Creators: name: Nepal, S.
name: Guiglion, G.
name: de Jong, R. S.
name: Valentini, M.
name: Chiappini, C.
name: Steinmetz, M.
name: Ambrosch, M.
name: Pancino, E.
name: Jeffries, R. D.
name: Bensby, T.
name: Romano, D.
name: Smiljanic, R.
name: Dantas, M. L. L.
name: Gilmore, G.
name: Randich, S.
name: Bayo, A.
name: Bergemann, M.
name: Franciosini, E.
name: Jiménez-Esteban, F.
name: Jofré, P.
name: Morbidelli, L.
name: Sacco, G. G.
name: Tautvaišienė, G.
name: Zaggia, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: With its origin coming from several sources (Big Bang, stars, cosmic rays) and given its strong depletion during its stellar lifetime, the lithium element is of great interest as its chemical evolution in the Milky Way is not well understood at present. To help constrain stellar and galactic chemical evolution models, numerous and precise lithium abundances are necessary for a large range of evolutionary stages, metallicities, and Galactic volume. In the age of stellar parametrization on industrial scales, spectroscopic surveys such as APOGEE, GALAH, RAVE, and LAMOST have used data-driven methods to rapidly and precisely infer stellar labels (atmospheric parameters and abundances). To prepare the ground for future spectroscopic surveys such as 4MOST and WEAVE, we aim to apply machine learning techniques to lithium measurements and analyses. We trained a convolution neural network (CNN), coupling Gaia-ESO Survey iDR6 stellar labels (Teff, log(g), [Fe/H], and A(Li)) and GIRAFFE HR15N spectra, to infer the atm parameters and lithium abundances for ~40,000 stars. We show that the CNN properly learns the physics of the stellar labels, from relevant spectral features through a broad range of evolutionary stages and stellar parameters. The Li feature at 6707.8 A is successfully singled out by our CNN, among the thousands of lines. Rare objects such as Li-rich giants are found in our sample. This level of performance is achieved thanks to a meticulously built, high-quality, and homogeneous training sample. The CNN approach is very well adapted for the next generations of spectroscopic surveys aimed at studying (among other elements) lithium, such as the 4MIDABLE-LR/HR (4MOST Milky Way disk and bulge low- and high-resolution) surveys. In this context, the caveats of ML applications should be appropriately investigated, along with the realistic label uncertainties and upper limits for abundances.
description: A&A, accepted 05 December 2022, 23 pages, 23 figures. Codes and trained models available at https://github.com/SamirNepal/Li\_CNN\_2022
The perturbative structure of spin glass field theory
Creators: name: Temesvári, Tamás
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Cubic replicated field theory is used to study the glassy phase of the short-range Ising spin glass just below the transition temperature, and for systems above, at, and slightly below the upper critical dimension six. The order parameter function is computed up to two-loop order. There are two, well-separated bands in the mass spectrum, just as in mean field theory. The small mass band acts as an infrared cutoff, whereas contributions from the large mass region can be computed perturbatively (d>6), or interpreted by the epsilon-expansion around the critical fixed point (d=6-epsilon). The one-loop calculation of the (momentum-dependent) longitudinal mass, and the whole replicon sector is also presented. The innocuous behavior of the replicon masses while crossing the upper critical dimension shows that the ultrametric replica symmetry broken phase remains stable below six dimensions.
description: 27 pages, 1 table. Coefficients in Eq. (B.7) corrected in this version
Ne croyez personne sur parole
Nullius in verba
Creators: name: Maillard, Dominique
Publisher: name: SEE
Year: 2020

description: Cette devise est, depuis 1661, celle de la Royal Society de Londres, l’académie des sciences britannique qui fut notamment présidée par Newton. Cette recommandation vise à récuser les arguments d’autorité, c’est-à-dire les affirmations simplement étayées par la qualité et « l’autorité » de celui qui les professe. Ne croyez-vous pas que nous aurions rudement besoin de nous en inspirer par les temps qui courent ?
Absence of Edge States in The Valley Chern Insulator in Moiré Graphene
Creators: name: Khalifa, Ahmed
name: Murthy, Ganpathy
name: Kaul, Ribhu K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the edge spectrum of twisted sheets of single layer and bilayer graphene in cases where the continuum model predicts a valley Chern insulator -- an insulating state in which the occupied moiré mini-bands from each valley have a net Chern number, but both valleys together have no net Chern number, as required by time reversal symmetry. In a simple picture, such a state might be expected to have chiral valley polarized counter-propagating edge states. We present results from exact diagonalization of the tight-binding model of commensurate structures in the ribbon geometry. We find that for both the single-layer and bilayer moiré ribbons robust edge modes are generically absent. We attribute this lack of edge modes to the fact that the edge induces valley mixing. Further, even in the bulk, a sharp distinction between the valley Chern insulator and a trivial insulator requires an exact $C_3$ symmetry.
Trajectories of directed lattice paths
Creators: name: van Rensburg, EJ Janse
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 82B41, 82B23

description: The distribution of monomers along a linear polymer grafted on a hard wall is modelled by determining the probability distribution of occupied vertices of Dyck and ballot path models of adsorbing linear polymers. For example, the probability that a Dyck path passes through the lattice site with coordinates $(\lfloor εn \rfloor,\lfloor δ\sqrt{n}\rfloor)$ in the square lattice, for $0 < ε< 1$ and $δ\geq 0$, is determined asymptotically as $n\to\infty$ and this uncovers the probability density of vertices along Dyck paths in the limit as the length of the path $n$ approaches infinity: $$\hbox{P}_r (ε,δ) = \frac{4δ^2}{\sqrt{π\,ε^3(1-ε)^3}} \, e^{-δ^2/ε(1-ε)}\ .$$ The properties of a polymer coating of a hard wall and the density or distribution of monomers in the coating is relevant in applications such as the stabilisation of a colloid dispersion by a polymer or in a drug delivery system such as a drug-eluding stent covered by a grafted polymer.
Energy and Environmental Policy Trends: The Hidden Cost of a Single-Use Plastics Ban
Creators: name: Goodday, Victoria
name: Winter, Jennifer
name: Schumacher, Nicholas
Publisher: name: The School of Public Policy Publications
Year: 2020

description: On October 7, the Government of Canada announced the details of its proposed plan to achieve zero plastic waste by 2030, including a ban on six single-use plastics items. Is a ban the best approach? What does the evidence suggest?
description: The School of Public Policy Publications, Vol. 13 (2020)
Nouveaux lasers et applications
Le 60e anniversaire du laser: des microchips aux lasers extrêmes
Creators: name: Ostel Subran
Publisher: name: SEE
Year: 2020

description: Aux lendemains de la deuxième guerre mondiale, des recherches importantes furent entreprises aux Etats-Unis et en Union soviétique dans le domaine des radars, afin de chercher des longueurs d’onde plus courtes que les ondes radio millimétriques utilisées jusqu’alors.
Disentangling Flavor Violation in the Top-Higgs Sector at the LHC
Creators: name: Greljo, Admir
name: Kamenik, Jernej F.
name: Kopp, Joachim
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the LHC phenomenology of flavor changing Yukawa couplings between top quark, Higgs boson, and either an up or charm quark. Such $tuh$ or $tch$ couplings arise for instance in models in which Higgs sector is extended by the existence of additional Higgs bosons or by higher dimensional operators. We emphasize the importance of anomalous single top plus Higgs production in these scenarios, in addition to the more widely studied $t \to h j$ decays. By recasting existing CMS searches in multilepton and diphoton plus lepton final states, we show that bounds on $tuh$ couplings are improved by a factor of 1.5 when single top plus Higgs production is accounted for. We also recast the CMS search for vector boson plus Higgs production into new, competitive constraints on $tuh$ and $tch$ couplings, setting the limits of $BR(t\to hu) < 0.7%$ and $BR(t\to hc) <1.2%$. We then investigate the sensitivity of future searches in multilepton channel and in fully hadronic channel. In multilepton searches, studying the lepton rapidity distributions and charge assignments can be used to discriminate between $tuh$ couplings, for which anomalous single top production is relevant, and $tch$ couplings, for which it is suppressed by the parton distribution function of the charm quark. An analysis of fully hadronic $t+h$ production and $t\to h j$ decay can be competitive with the multilepton search at 100 fb$^{-1}$ of 13 TeV data if jet substructure techniques are employed to reconstruct boosted top quarks and Higgs bosons. To show this we develop a modified version of the HEPTopTagger algorithm, optimized for tagging $t \to h j$ decays. Our sensitivity estimates on $BR(t\to hu)$ ($BR(t\to hc)$) at 100 fb$^{-1}$ of 13 TeV data for multilepton searches, vector boson plus Higgs search and fully hadronic search are $0.22%$ ($0.33%$), $0.15%$ ($0.19%$) and $0.36%$ ($0.48%$), respectively.
description: Version published in JHEP
Production and suppression of delayed light in NaI
Creators: name: Sutanto, F.
name: Xu, J.
name: Pereverzev, S.
name: Bernstein, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We investigate a hypothesis that energy accumulation and the subsequent release in NaI(Tl) may lead to pulse-like events in the few-keV energy regime, a phenomenon suggested by the crystal manufacturing company Saint-Gobain, who provided the crystals for DAMA-LIBRA. While we observed delayed long-lasting light emission in a 3" NaI(Tl) crystal after exposing it to UV light, the delayed light consists primarily of single photons that are uncorrelated with each other. We also observe delayed light emission in NaI(Tl) following gamma radiation and large ionization events like cosmic-ray muons. We found that irradiating the crystal with red light after UV exposure significantly suppressed delayed photon emissions.
From quantum-mechanical to classical dynamics in the central-spin model
Creators: name: Stanek, Daniel
name: Raas, Carsten
name: Uhrig, Götz S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the semiclassical and classical character of the dynamics of a single spin 1/2 coupled to a bath of noninteracting spins 1/2. On the semiclassical level, we extend our previous approach presented in D. Stanek, C. Raas, and G. S. Uhrig, Phys. Rev. B 88, 155305 (2013) by the explicit consideration of the conservation of the total spin. On the classical level, we compare the results of the classical equations of motions in absence and presence of an external field to the full quantum result obtained by density-matrix renormalization (DMRG). We show that for large bath sizes and not too low magnetic field the classical dynamics, averaged over Gaussian distributed initial spin vectors, agrees quantitatively with the quantum-mechanical one. This observation paves the way for an efficient approach for certain parameter regimes.
description: 13 pages, 9 figures
Cinq années d’expérimentation au Laser Mégajoule
Creators: name: Lefebvre, Erik
Publisher: name: SEE
Year: 2020

description: Cinq ans après la mise en service de l’installation, les premières expériences de fusion nucléaire ont été réalisées en octobre 2019, marquant un jalon majeur pour la garantie de la dissuasion française en l’absence d’essai nucléaire.
Lasers microchips pour l’instrumentation optique : du laboratoire au grand public
Creators: name: Georges, Thierry
name: Landru, Nicolas
name: Rouvillain, Julien
name: Hughes Fortin
name: Etienne, Pascal
Publisher: name: SEE
Year: 2020

description: Pour accompagner le développement de la photonique, il faut développer des sources laser compactes, peu énergivores et peu chères en production de masse. Les diodes laser, dont le développement commercial a débuté moins de 25 ans après l’invention du laser en 1960, répondent bien à une partie de ce besoin. Nous pensons que les lasers à microchips pompés par diodes en seront le complément.
Unified intermediate coupling description of the pseudogap and the strange metal phases of cuprates
Creators: name: Kao, Hsien-chung
name: Li, Dingping
name: Rosenstein, Baruch
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A one band Hubbard model with intermediate coupling is shown to describe the two most important unusual features of a normal state: linear resistivity strange metal and the pseudogap. Both the spectroscopic and transport properties of the cuprates are considered on the same footing by employing a relatively simple postgaussian approximation valid for the intermediate couplings $U/t=1.5-4$ in relevant temperatures $T>100{\rm K}.$ In the doping range $\ p=0.1-0.3$, the value of $U$ is smaller than that in the parent material. For a smaller doping, especially in the Mott insulator phase, the coupling is large compared to the effective tight binding scale and a different method is required. This scenario provides an alternative to the paradigm that the coupling should be strong, say $U/t>6$, in order to describe the strange metal. We argue that to obtain phenomenologically acceptable underdoped normal state characteristics like $T^{\ast }$, pseudogap values, and spectral weight distribution, a large value of $U$ is detrimental. Surprisingly the resistivity in the above temperature range is linear $ρ=ρ_{0}+α\frac{m^{\ast }}{e^{2}n\hbar }T$ with the "Planckian" coefficient $α$ of order one.
description: 4 pages, 4 figures. Supplemental material may be found in the source files
MPEC 2023-V13 : 2017 WO1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.