cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Star Formation in Galactic Bars - a Poorly Understood Process
Creators: name: Neumann, Justus
Publisher: name: Zenodo
Year: 2023

description: About half of all nearby barred galaxies show signatures of ongoing star formation along the bar, while the other half presents itself with a curious absence of star formation. Despite the presence of cold molecular gas observed as radial flows along the edge of the bar towards the galaxy centre, the local environment seems to be able to suppress star formation. Simulations indicate that a combination of shear and turbulence within the fast-flowing gas might be responsible. With the combined use of MUSE-ALMA+HST+JWST data of 19 galaxies in the PHANGS survey at ~100 pc resolution, we are able to dive into a detailed analysis of star formation processes in bars. First results indicate an intriguing azimuthal displacement between cold gas and young stars along the bar, which we plan to compare to isolated hydro-simulations in PHANGS.
Evolution of electron cross-field transport induced by an equilibrium azimuthal electric field in an $\mathrm{E}\times\mathrm{B}$ Hall thruster discharge under an azimuthally inhomogeneous neutral supply
Creators: name: Bak, Junhwi
name: Kawashima, Rei
name: Simmonds, Jacob
name: Komurasaki, Kimiya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The electron cross-field transport by the induced azimuthal electric field in a Hall thruster exhibits the mobility scaled by $1/B$. This study investigates parameters affecting this transport over a Hall thruster's distinct regions, such as the ionization, acceleration, and plume region. The main focus is on the nonzero equilibrium azimuthal electric field induced by an azimuthally inhomogeneous neutral supply. A fast Fourier transform analysis of the plasma structure reveals that the wavenumber $k$ of the azimuthal plasma structure increases from $k=2$, which is the input condition, to $k=4$ in the plume region, and that the total axial flux caused by the azimuthal electric field is mainly induced from the structures of the dominant Fourier components. The azimuthal phase relation between plasma potential and density is formed to maximize the axial electron flux at the plume region and starts varying along with other plasma properties as electrons flow toward the acceleration region. The spatial evolution of the effective axial mobility coefficient is extracted, and its regional characteristics are discussed.
description: 11 pages, 10 figures. Accepted by Physics of Plasmas
Rare B-Meson Decays at the Crossroads
Creators: name: Ali, Ahmed
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Experimental era of rare $B$-decays started with the measurement of $B \to K^* γ$ by CLEO in 1993, followed two years later by the measurement of the inclusive decay $B \to X_s γ$, which serves as the standard candle in this field. The frontier has moved in the meanwhile to the experiments at the LHC, in particular, LHCb, with the decay $B^0 \to μ^+ μ^-$ at about 1 part in $10^{10}$ being the smallest branching fraction measured so far. Experimental precision achieved in this area has put the standard model to unprecedented stringent tests and more are in the offing in the near future. I review some key measurements in radiative, semileptonic and leptonic rare $B$-decays, contrast them with their estimates in the SM, and focus on several mismatches reported recently. They are too numerous to be ignored, yet , standing alone, none of them is significant enough to warrant the breakdown of the SM. Rare $B$-decays find themselves at the crossroads, possibly pointing to new horizons, but quite likely requiring an improved theoretical description in the context of the SM. An independent precision experiment such as Belle II may help greatly in clearing some of the current experimental issues.
description: 27 pages, 13 figures, two tables. To be published in the Proceedings of the Conference on New Physics at the Large Hadron Collider, Nanyang Technological University, Singapore, 29 February - 4 March 2016
Vacuum Energy Sequestering and Graviton Loops
Creators: name: Kaloper, Nemanja
name: Padilla, Antonio
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We recently formulated a local mechanism of vacuum energy sequester. This mechanism automatically removes all matter loop contributions to vacuum energy from the stress energy tensor which sources the curvature. Here we adapt the local vacuum energy sequestering mechanism to also cancel all the vacuum energy loops involving virtual gravitons, in addition to the vacuum energy generated by matter fields alone.
description: 9 pages LaTeX, 2 figures
GTnum PERSEUS #InteractionHybridation - Interaction/hybridation : quels défis pour l'éducation ?
Creators: name: Fleck, Stéphanie
name: Kubicki, Sébastien
name: Voillot, Marion
name: Bertolo, David
Publisher: name: Zenodo
Year: 2023
Subjects: Hybridation physique-numérique
Education
Défis
#GTnum
DNE

description: Bulletin de veille portant sur les enjeux et les défis de l'hybridation physique-numérique pour l'éducation.
description: Les groupes thématiques numériques (GTnum) sont coordonnés par la Direction du numérique pour l'éducation du Ministère de l'Education nationale et de la Jeunesse. Les GTnum ont pour objectif de mettre à disposition des équipes éducatives, de façon accessible et ouverte, un état de la recherche sur quelques grandes thématiques relatives au numérique dans l'éducation. Financeur du projet:« Ministère de l'Éducation nationale et de la Jeunesse»
Prediction of the Facial Growth Direction is Challenging
Creators: name: Kaźmierczak, Stanisław
name: Juszka, Zofia
name: Vandevska-Radunovic, Vaska
name: Maal, Thomas JJ
name: Fudalej, Piotr
name: Mańdziuk, Jacek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Facial dysmorphology or malocclusion is frequently associated with abnormal growth of the face. The ability to predict facial growth (FG) direction would allow clinicians to prepare individualized therapy to increase the chance for successful treatment. Prediction of FG direction is a novel problem in the machine learning (ML) domain. In this paper, we perform feature selection and point the attribute that plays a central role in the abovementioned problem. Then we successfully apply data augmentation (DA) methods and improve the previously reported classification accuracy by 2.81%. Finally, we present the results of two experienced clinicians that were asked to solve a similar task to ours and show how tough is solving this problem for human experts.
Adversarial defenses via a mixture of generators
Creators: name: Żelaszczyk, Maciej
name: Mańdziuk, Jacek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In spite of the enormous success of neural networks, adversarial examples remain a relatively weakly understood feature of deep learning systems. There is a considerable effort in both building more powerful adversarial attacks and designing methods to counter the effects of adversarial examples. We propose a method to transform the adversarial input data through a mixture of generators in order to recover the correct class obfuscated by the adversarial attack. A canonical set of images is used to generate adversarial examples through potentially multiple attacks. Such transformed images are processed by a set of generators, which are trained adversarially as a whole to compete in inverting the initial transformations. To our knowledge, this is the first use of a mixture-based adversarially trained system as a defense mechanism. We show that it is possible to train such a system without supervision, simultaneously on multiple adversarial attacks. Our system is able to recover class information for previously-unseen examples with neither attack nor data labels on the MNIST dataset. The results demonstrate that this multi-attack approach is competitive with adversarial defenses tested in single-attack settings.
SPEED+: Next-Generation Dataset for Spacecraft Pose Estimation across Domain Gap
Creators: name: Park, Tae Ha
name: Märtens, Marcus
name: Lecuyer, Gurvan
name: Izzo, Dario
name: D'Amico, Simone
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Autonomous vision-based spaceborne navigation is an enabling technology for future on-orbit servicing and space logistics missions. While computer vision in general has benefited from Machine Learning (ML), training and validating spaceborne ML models are extremely challenging due to the impracticality of acquiring a large-scale labeled dataset of images of the intended target in the space environment. Existing datasets, such as Spacecraft PosE Estimation Dataset (SPEED), have so far mostly relied on synthetic images for both training and validation, which are easy to mass-produce but fail to resemble the visual features and illumination variability inherent to the target spaceborne images. In order to bridge the gap between the current practices and the intended applications in future space missions, this paper introduces SPEED+: the next generation spacecraft pose estimation dataset with specific emphasis on domain gap. In addition to 60,000 synthetic images for training, SPEED+ includes 9,531 hardware-in-the-loop images of a spacecraft mockup model captured from the Testbed for Rendezvous and Optical Navigation (TRON) facility. TRON is a first-of-a-kind robotic testbed capable of capturing an arbitrary number of target images with accurate and maximally diverse pose labels and high-fidelity spaceborne illumination conditions. SPEED+ is used in the second international Satellite Pose Estimation Challenge co-hosted by SLAB and the Advanced Concepts Team of the European Space Agency to evaluate and compare the robustness of spaceborne ML models trained on synthetic images.
Formation of the Unequal-Mass Binary Protostars in L1551 NE by Rotationally-Driven Fragmentation
Creators: name: Lim, Jeremy
name: Hanawa, Tomoyuki
name: Yeung, Paul K. H.
name: Takakuwa, Shigehisa
name: Matsumoto, Tomoaki
name: Saigo, Kazuya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present observations at 7 mm that fully resolve the two circumstellar disks, and a reanalyses of archival observations at 3.5 cm that resolve along their major axes the two ionized jets, of the class I binary protostellar system L1551 NE. We show that the two circumstellar disks are better fit by a shallow inner and steep outer power-law than a truncated power-law. The two disks have very different transition radii between their inner and outer regions of $\sim$18.6 AU and $\sim$8.9 AU respectively. Assuming that they are intrinsically circular and geometrically thin, we find that the two circumstellar disks are parallel with each other and orthogonal in projection to their respective ionized jets. Furthermore, the two disks are closely aligned if not parallel with their circumbinary disk. Over an interval of $\sim$10 yr, source B (possessing the circumsecondary disk) has moved northwards with respect to and likely away from source A, indicating an orbital motion in the same direction as the rotational motion of their circumbinary disk. All the aforementioned elements therefore share the same axis for their angular momentum, indicating that L1551 NE is a product of rotationally-driven fragmentation of its parental core. Assuming a circular orbit, the relative disk sizes are compatible with theoretical predictions for tidal truncation by a binary system having a mass ratio of $\sim$0.2, in agreement with the reported relative separations of the two protostars from the center of their circumbinary disk. The transition radii of both disks, however, are a factor of $\gtrsim$1.5 smaller than their predicted tidally-truncated radii.
description: Accepted for publication in ApJ
Migration of Active Rings in Porous Media
Creators: name: Theeyancheri, Ligesh
name: Chaki, Subhasish
name: Bhattacharjee, Tapomoy
name: Chakrabarti, Rajarshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Inspired by how the shape deformations in active organisms help them to migrate through disordered porous environments, we simulate active ring polymers in two-dimensional random porous media. Flexible and inextensible active ring polymers navigate smoothly through the disordered media. In contrast, semiflexible rings undergo transient trapping inside the pore space; the degree of trapping is inversely correlated with the increase in activity. We discover that flexible rings swell while inextensible and semiflexible rings monotonically shrink upon increasing the activity. Together, our findings identify the optimal migration of active ring polymers through porous media.
GTnum PERSEUS #InteractionHybridation - Influences transformatives sur les pratiques des enseignants
Creators: name: Vitel, Sylvie
name: Ciré, Isabelle
name: Keller, Lola
Publisher: name: Zenodo
Year: 2023
Subjects: Influences transformatives
Enseignants

description: Une infographie reprenant les points clefs du cahier d'expérience portant sur les influences transformatives sur les pratiques des enseignants.
description: Les groupes thématiques numériques (GTnum) sont coordonnés par la Direction du numérique pour l'éducation du Ministère de l'Education nationale et de la Jeunesse. Les GTnum ont pour objectif de mettre à disposition des équipes éducatives, de façon accessible et ouverte, un état de la recherche sur quelques grandes thématiques relatives au numérique dans l'éducation. Financeur du projet:« Ministère de l'Éducation nationale et de la Jeunesse»
Understanding COVID-19 Biology to Design a Vaccine
Creators: name: Johnson, Keith
name: Vardar-Ulu, Didem
name: Dutta, Shuchismita
Publisher: name: QUBES Educational Resources
Year: 2020

description: This multi-part case study introduces the reader to the SARS-CoV-2 virus, replication, and treatment. Additional worksheets introduce students to bioinformatics tools of 3-D protein visualization and BLAST searches.
Controlling Rydberg excitations using ion core transitions in alkaline earth atom tweezer arrays
Creators: name: Burgers, Alex P
name: Ma, Shuo
name: Saskin, Sam
name: Wilson, Jack
name: Alarcón, Miguel A
name: Greene, Chris H
name: Thompson, Jeff D
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Scalable, local control over gate operations is an outstanding challenge in the field of quantum computing and programmable quantum simulation with Rydberg atom arrays. One approach is to use a global field to excite atoms to the Rydberg state, and tune individual atoms in and out of resonance via local light shifts. In this work, we point out that photon scattering errors from light shifts can be significantly reduced if the light shift is applied to the Rydberg state instead of the ground state, which can be realized in Rydberg states of alkaline earth atoms using optical transitions in the ion core. As a proof-of-concept, we experimentally demonstrate global control of Rydberg excitations in a Yb optical tweezer array via light shifts induced by a laser tuned near the Yb$^+$ $6s\rightarrow6p_{1/2}$ transition. We also perform detailed spectroscopy of the induced light shift and scattering rates of the $6sns$ $^3$S$_1$ Rydberg states and reveal the existence of satellite lines where losses from autoionization are strongly suppressed. This work can be readily extended to implement local gate operations in Rydberg atom arrays.
Lerche Supplementary file Goldilocks Work planning tool final.xlsx
Creators: name: Lerche, Anders Fritz
Publisher: name: figshare
Year: 2023
Subjects: Occupational and workplace health and safety

description: The Goldilocks Work planning tool was developed and used in the Goldilocks Work intervention described by Lerche et. al. (2022).
 The purpose of the tool was to support workteams when planning and organizing their work tasks towards a 'just right' ergonomic balance of physical behaviors in terms of proportions of time spent sitting, standing and active, and the frequency of alternating between sitting, standing and active work tasks.
Complete coverage of space favors modularity of the grid system in the brain
Creators: name: Sanzeni, Alessandro
name: Balasubramanian, Vijay
name: Tiana, Guido
name: Vergassola, Massimo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Grid cells in the entorhinal cortex fire when animals that are exploring a certain region of space occupy the vertices of a triangular grid that spans the environment. Different neurons feature triangular grids that differ in their properties of periodicity, orientation and ellipticity. Taken together, these grids allow the animal to maintain an internal, mental representation of physical space. Experiments show that grid cells are modular, i.e. there are groups of neurons which have grids with similar periodicity, orientation and ellipticity. We use statistical physics methods to derive a relation between variability of the properties of the grids within a module and the range of space that can be covered completely (i.e. without gaps) by the grid system with high probability. Larger variability shrinks the range of representation, providing a functional rationale for the experimentally observed co-modularity of grid cell periodicity, orientation and ellipticity. We obtain a scaling relation between the number of neurons and the period of a module, given the variability and coverage range. Specifically, we predict how many more neurons are required at smaller grid scales than at larger ones.
Spin Transport through the metallic antiferromagnet FeMn
Creators: name: Saglam, H.
name: Zhang, W.
name: Jungfleisch, M. B.
name: Sklenar, J.
name: Pearson, J. E.
name: Ketterson, J. B.
name: Hoffmann, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate spin transport through metallic antiferromagnets using measurements based on spin pumping combined with inverse spin Hall effects in Ni80Fe20/FeMn/W trilayers. The relatively large magnitude and opposite sign of spin Hall effects in W compared to FeMn enable an unambiguous detection of spin currents transmitted through the entire FeMn layer thickness. Using this approach we can detect two distinctively different spin transport regimes, which we associate with electronic and magnonic spin currents respectively. The latter can extend to relatively large distances (up to 9 nm) and is enhanced when the antiferromagnetic ordering temperature is close to the measurement temperature.
Tightening geometric and dynamical constraints on dark energy and gravity: galaxy clustering, intrinsic alignment and kinetic Sunyaev-Zel'dovich effect
Creators: name: Okumura, Teppei
name: Taruya, Atsushi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Conventionally, in galaxy surveys, cosmological constraints on the growth and expansion history of the universe have been obtained from the measurements of redshift-space distortions and baryon acoustic oscillations embedded in the large-scale galaxy density field. In this paper, we study how well one can improve the cosmological constraints from the combination of the galaxy density field with velocity and tidal fields, which are observed via the kinetic Sunyaev-Zel'dovich (kSZ) and galaxy intrinsic alignment (IA) effects, respectively. For illustration, we consider the deep galaxy survey by Subaru Prime Focus Spectrograph, whose survey footprint perfectly overlaps with the imaging survey of the Hyper Suprime-Cam and the CMB-S4 experiment. We find that adding the kSZ and IA effects significantly improves cosmological constraints, particularly when we adopt the non-flat cold dark matter model which allows both time variation of the dark energy equation-of-state and deviation of the gravity law from general relativity. Under this model, we achieve $31\%$ improvement for the growth index $γ$ and $>35\%$ improvement for other parameters except for the curvature parameter, compared to the case of the conventional galaxy-clustering-only analysis. As another example, we also consider the wide galaxy survey by the {\it Euclid} satellite, in which shapes of galaxies are noisier but the survey volume is much larger. We demonstrate that when the above model is adopted, the clustering analysis combined with kSZ and IA from the deep survey can achieve tighter cosmological constraints than the clustering-only analysis from the wide survey.
description: 24 pages, 13 figures, 6 tables, accepted to PRD
Multiple Outflows in the Giant Eruption of a Massive Star
Creators: name: Humphreys, Roberta M.
name: Martin, John C.
name: Gordon, Michael S.
name: Jones, Terry J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The supernova impostor PSN J09132750+7627410 in NGC 2748 reached a maximum luminosity of approximately -14 mag. It was quickly realized that its was not a true supernova, but another example of a non-terminal giant eruption. PSN J09132750+7627410 is distinguished by multiple P Cygni absorption minima in the Balmer emission lines that correspond to outflow velocities of -400, -1100, and -1600 km/s. Multiple outflows have been observed in only a few other objects. In this paper we describe the evolution of the spectrum and the P Cygni profiles for three months past maximum, the post-maximum formation of a cool, dense wind, and the identification of a possible progenitor. One of the possible progenitors is an infrared source. Its pre-eruption spectral energy distribution suggests a bolometric luminosity of -8.3 mag and a dust temperature of 780 degrees K. If it is the progenitor it is above the AGB limit unlike the intermediate luminosity red transients. The three P Cygni profiles could be due to ejecta from the current eruption, the wind of the progenitor, or previous mass loss events. We suggest that they were all formed as part of the same high mass loss event and are due to material ejected at different velocities or energies. We also suggest that multiple outflows during giant eruptions may be more common than reported.
description: To appear in the Astrophysical Journal
The effect of interplanetary magnetic field orientation on the solar wind flux impacting Mercury's surface
Creators: name: Varela, J.
name: Pantellini, F.
name: Moncuquet, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The aim of this paper is to study the plasma flows on the Mercury surface for different interplanetary magnetic field orientations on the day side of the planet. We use a single fluid MHD model in spherical coordinates to simulate the interaction of the solar wind with the Hermean magnetosphere for six solar wind realistic configurations with different magnetic field orientations: Mercury-Sun, Sun-Mercury, aligned with the magnetic axis of Mercury (Northward and Southward) and with the orbital plane perpendicular to the previous cases. In the Mercury-Sun (Sun-Mercury) simulation the Hermean magnetic field is weakened in the South-East (North-East) of the magnetosphere leading to an enhancement of the flows on the South (North) hemisphere. For a Northward (Southward) orientation there is an enhancement (weakening) of the Hermean magnetic field in the nose of the bow shock so the fluxes are reduced and drifted to the poles (enhanced and drifted to the equator). If the solar wind magnetic field is in the orbital plane the magnetosphere is tilted to the West (East) and weakened at the nose of the shock, so the flows are enhanced and drifted to the East (West) in the Northern hemisphere and to the West (East) in the Southern hemisphere.
Augmenting Collider Searches and Enhancing Discovery Potentials through Stochastic Jet Grooming
Creators: name: Roy, Tuhin S.
name: Thalapillil, Arun M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The jet Trimming procedure has been demonstrated to greatly improve event reconstruction in hadron collisions, by mitigating contamination due initial state radiation, multiple interactions, and event pileup. Meanwhile, Qjets -- a nondeterministic approach to tree-based jet substructure has been shown to be a powerful technique in decreasing random statistical fluctuations, yielding significant effective luminosity improvements. This manifests through an improvement in the significance $S/δB$, relative to conventional methods. Qjets also provide novel observables in many cases, like mass-volatility, that could be used to further discriminate between signal and background events. The statistical robustness and volatility observables, for tagging, are obtained simultaneously. We explore here a combination of the two techniques, and demonstrate that significant enhancements in discovery potentials may be obtained in non-trivial ways. We will illustrate this by considering a diboson resonance analysis as a case study -- enabling us to interpolate between scenarios where the gains are purely due to statistical robustness and scenarios where the gains are also reinforced by volatility variable discriminants. The former, for instance, is applicable to digluon/diquark resonances, while the latter will be of relevance to di-$W^\pm$/di-$Z^0$ resonances, where the boosted vector bosons are decaying hadronically and have an intrinsic mass scale attached to them. We argue that one can enhance signal significance and discovery potentials markedly through stochastic grooming, and help augment studies at the Large Hadron Collider and future hadron colliders.
description: 27 pages, 7 figures, 4 tables
Model-Independent Constraints on Non-Unitary Neutrino Mixing from High-Precision Long-Baseline Experiments
Creators: name: Agarwalla, Sanjib Kumar
name: Das, Sudipta
name: Giarnetti, Alessio
name: Meloni, Davide
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Our knowledge on the active 3$ν$ mixing angles ($θ_{12}$, $θ_{13}$, and $θ_{23}$) and the CP phase $δ_{\mathrm{CP}}$ is becoming accurate day-by-day enabling us to test the unitarity of the leptonic mixing matrix with utmost precision. Future high-precision long-baseline experiments are going to play an important role in this direction. In this work, we study the impact of possible non-unitary neutrino mixing (NUNM) in the context of next-generation long-baseline experiments DUNE and T2HKK/JD+KD having one detector in Japan (T2HK/JD) and a second detector in Korea (KD). We estimate the sensitivities of these setups to place direct, model-independent, and competitive constraints on various NUNM parameters. We demonstrate the possible correlations between the NUNM parameters, $θ_{23}$, and $δ_{\mathrm{CP}}$. Our numerical results obtained using only far detector data and supported by simple approximate analytical expressions of the oscillation probabilities in matter, reveal that JD+KD has better sensitivities for $|α_{21}|$ and $α_{22}$ as compared to DUNE, due to its larger statistics in the appearance channel and less systematic uncertainties in the disappearance channel, respectively. For $|α_{31}|$, $|α_{32}|$, and $α_{33}$, DUNE gives better constraints as compared to JD+KD, due to its larger matter effect and wider neutrino energy spectrum. For $α_{11}$, both DUNE and JD+KD give similar bounds. We also show how much the bounds on the NUNM parameters can be improved by combining the prospective data from DUNE and JD+KD setups. We find that due to zero-distance effects, the near detectors alone can also constrain $α_{11}$, $|α_{21}|$, and $α_{22}$ in both these setups. Finally, we observe that the $ν_τ$ appearance sample in DUNE can improve the constraints on $|α_{32}|$ and $α_{33}$.
description: 39 pages, 10 figures, 11 tables, and 2 appendices. Published in JHEP
Figuras_Entrega
Creators: name: Valls, Francisco Javier
Publisher: name: figshare
Year: 2023
Subjects: Genomics and transcriptomics

description: En este repositirio se encuentran las figuras de resultados presentes en el TFM más algunas imagenes adicionales que he considerado interesantes. También se han incluído los reportes individuales de QUAST de cada una de las 212 muestras analizadas (ST11 + ST307).
Restriction and induction for supercharacters of finite groups of triangular type
Creators: name: Panov, A. N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C33

description: It is proved the the restriction of any supercharacter of a finite group of triangular type on its subgroup is a sum of supercharacters with nonnegative integer coefficients. We define superinduction and prove the analog of the Frobenius formula for supercharacters.
description: 18 pages
Sign-to-Speech Model for Sign Language Understanding: A Case Study of Nigerian Sign Language
Creators: name: Kolawole, Steven
name: Osakuade, Opeyemi
name: Saxena, Nayan
name: Olorisade, Babatunde Kazeem
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Through this paper, we seek to reduce the communication barrier between the hearing-impaired community and the larger society who are usually not familiar with sign language in the sub-Saharan region of Africa with the largest occurrences of hearing disability cases, while using Nigeria as a case study. The dataset is a pioneer dataset for the Nigerian Sign Language and was created in collaboration with relevant stakeholders. We pre-processed the data in readiness for two different object detection models and a classification model and employed diverse evaluation metrics to gauge model performance on sign-language to text conversion tasks. Finally, we convert the predicted sign texts to speech and deploy the best performing model in a lightweight application that works in real-time and achieves impressive results converting sign words/phrases to text and subsequently, into speech.
title: Rechtsprechungswegweiser Europarecht 2012
title: Aktuelle EuGH-Rechtsprechung mit Prüfungsrelevanz (Teil 3)
titleType: Subtitle
Creators: name: Stöbener, Patricia Sarah
name: Stöbener, Angela Regina
name: Wendel, Mattias
Publisher: name: Humboldt-Universität zu Berlin
Year: 2012
Subjects: subject: 340 Recht

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Check of a new non-perturbative mechanism for elementary fermion mass generation
Creators: name: Capitani, Stefano
name: De Divitiis, Giulia Maria
name: Dimopoulos, Petros
name: Frezzotti, Roberto
name: Garofalo, Marco
name: Knippschild, Bastian
name: Kostrzewa, Bartosz
name: Ottnad, Konstantin
name: Rossi, Giancarlo
name: Schröck, Mario
name: Urbach, Carsten
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a field theoretical model where a SU(2) fermion doublet, subjected to non-Abelian gauge interactions, is also coupled to a complex scalar field doublet via a Yukawa and an irrelevant Wilson-like term. Despite the presence of these two chiral breaking operators in the Lagrangian, an exact symmetry acting on fermions and scalars prevents perturbative mass corrections. In the phase where fermions are massless (Wigner phase) the Yukawa coupling can be tuned to a critical value at which chiral transformations acting on fermions only become a symmetry of the theory (up to cutoff effects). In the Nambu-Goldstone phase of the critical theory a fermion mass term of dynamical origin is expected to arise in the Ward identities of the purely fermionic chiral transformations. Such a non-perturbative mechanism of dynamical mass generation can provide a "natural" (à la 't Hooft) alternative to the Higgs mechanism adopted in the Standard Model. Here we lay down the theoretical framework necessary to demonstrate the existence of this mechanism by means of lattice simulations.
description: 7 pages, 3 figureres, Proceedings for The 34th International Symposium on Lattice Field Theory
GTnum PERSEUS #InteractionHybridation - Usage de l'Environnement Numérique de Travail
Creators: name: Vitel, Sylvie
name: Ciré, Isabelle
name: Keller, Lola
Publisher: name: Zenodo
Year: 2023
Subjects: Environnement numérique de travail (ENT)
Données de connexion
Données d'usage

description: Une infographie sur les données de connexion et d'usage de l'Environnement Numérique de Travail, dans l'académie de Nancy-Metz de 2019 à 2022.
Mitigating long queues and waiting times with service resetting
Creators: name: Bonomo, Ofek Lauber
name: Pal, Arnab
name: Reuveni, Shlomi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: What determines the average length of a queue which stretches in front of a service station? The answer to this question clearly depends on the average rate at which jobs arrive at the queue and on the average rate of service. Somewhat less obvious is the fact that stochastic fluctuations in service and arrival times are also important, and that these are a major source of backlogs and delays. Strategies that could mitigate fluctuations induced delays are in high demand as queue structures appear in various natural and man-made systems. Here we demonstrate that a simple service resetting mechanism can reverse the deleterious effects of large fluctuations in service times, thus turning a marked drawback into a favourable advantage. This happens when stochastic fluctuations are intrinsic to the server, and we show that the added feature of service resetting can then dramatically cut down average queue lengths and waiting times. While the analysis presented herein is based on the M/G/1 queueing model where service is general but arrivals are assumed to be Markovian, Kingman's formula asserts that the benefits of service resetting will carry over to queues with general arrivals. We thus expect results coming from this work to find widespread application to queueing systems ranging from telecommunications, via computing, and all the way to molecular queues that emerge in enzymatic and metabolic cycles of living organisms.
Interlayer breathing and shear modes in NbSe2 atomic layers
Creators: name: He, Rui
name: van Baren, Jeremiah
name: Yan, Jia-An
name: Xi, Xiaoxiang
name: Ye, Zhipeng
name: Ye, Gaihua
name: Lu, I-Hsi
name: Leong, S. M.
name: Lui, C. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Atomically thin NbSe2 is a metallic layered transition metal dichalcogenide (TMD) with considerably different crystallographic structure and electronic properties from other TMDs, such as MoS2, MoSe2, WS2 and WSe2. Properties of TMD atomic layers are sensitive to interlayer coupling. Here we investigate the interlayer phonons of few-layer NbSe2 by ultralow-frequency Raman spectroscopy. We observe both the interlayer breathing modes and shear modes at frequencies below 40 cm-1 for samples of 2 to 15 layers. Their frequency, Raman activity, and environmental instability depend systematically on the layer number. We account for these results utilizing a combination of the linear-chain model, group-theory analysis and first-principles calculations. Although NbSe2 possesses different stacking order from MoS2, MoSe2, WS2 and WSe2, it exhibits the same symmetry and Raman selection rules, as well as similar interlayer coupling strength and thickness dependence of interlayer phonon modes.
Information Extraction from Visually Rich Documents with Font Style Embeddings
Creators: name: Oussaid, Ismail
name: Vanhuffel, William
name: Ratnamogan, Pirashanth
name: Hajaiej, Mhamed
name: Mathey, Alexis
name: Gilles, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Information extraction (IE) from documents is an intensive area of research with a large set of industrial applications. Current state-of-the-art methods focus on scanned documents with approaches combining computer vision, natural language processing and layout representation. We propose to challenge the usage of computer vision in the case where both token style and visual representation are available (i.e native PDF documents). Our experiments on three real-world complex datasets demonstrate that using token style attributes based embedding instead of a raw visual embedding in LayoutLM model is beneficial. Depending on the dataset, such an embedding yields an improvement of 0.18% to 2.29% in the weighted F1-score with a decrease of 30.7% in the final number of trainable parameters of the model, leading to an improvement in both efficiency and effectiveness.
From fifty years ago, the birth of modern liquid-state science
Creators: name: Chandler, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The story told in this autobiographical perspective begins fifty years ago at the 1967 Gordon Research Conference on the Physics and Chemistry of Liquids. It traces developments in liquid-state science from that time, including contributions from the author, and especially in the study of liquid water. It emphasizes the importance of fluctuations, and the challenges of far-from-equilibrium phenomena.
description: Invited autobiographical piece prepared for the Annual Reviews of Physical Chemistry
Spin Interaction under the Collision of Two Kerr-(anti-)de Sitter Black Holes
Creators: name: Gwak, Bogeun
name: Ro, Daeho
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We have investigated spin interaction under the collision of Kerr-(anti-)de Sitter black holes. The potential of a spin interaction is dependent on the relative rotating directions of the black holes, and this potential can be released as gravitational radiation under the collision. The radiation depends on the cosmological constant and corresponds to the potential of the spin interaction at a limit where one of the black holes is assumed to have small mass and angular momentum. Then, we have shown, approximately, the overall behaviors of the upper bounds on the radiation using thermodynamics. From these bounds, the spin interaction can consistently contribute to the radiation. In addition, the radiation depends on the stability of the black hole synthesized from the collision.
description: 12 pages, 8 figures
Electron Bunch Train Excited Higher-Order Modes in a Superconducting RF Cavity
Creators: name: Gao, Yongfeng
name: Huang, Senlin
name: Wang, Fang
name: Feng, Liwen
name: Zhuang, Dehao
name: Lin, Lin
name: Zhu, Feng
name: Hao, Jiankui
name: Quan, Shengwen
name: Liu, Kexin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Higher-order mode (HOM) based intra-cavity beam diagnostics has been proved effectively and conveniently in superconducting radio-frequency (SRF) accelerators. Our recent research shows that the beam harmonics in the bunch train excited HOM spectrum, which have much higher signal-to-noise ratio than the intrinsic HOM peaks, may also be useful for beam diagnostics. In this paper, we will present our study on bunch train excited HOMs, including the theoretic model and recent experiments carried out based on the DC-SRF photoinjector and SRF linac at Peking University.
description: Supported by National Natural Science Foundation of China (11275014)
Ethical Wondering in Contemporary African American and Asian American Women's Magical Realism
Creators: name: Kim, Na Rim
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: North American literature
Ecocriticism
Comparative and transnational literature
Literary theory
Stylistics and textual analysis
Cultural theory
Epistemology
Phenomenology
Ethical theory

description: The term magical realism traces back to the German art critic Franz Roh, who in the early twentieth century applied it to (visual) art expressing the wondrousness of life. However, this definition has been eclipsed over time. Reorienting critical attention back to magical realism as the art of portraying wonder and wondering, I explore the magical realist novels of contemporary African American and Asian American women writers. Specifically, I examine Toni Morrison’s Paradise (1997), Jesmyn Ward’s Sing, Unburied, Sing (2017), Karen Tei Yamashita’s Through the Arc of the Rain Forest (1990), and Ruth Ozeki’s A Tale for the Time Being (2013). In wonder, all frames of reference at hand suddenly become inadequate. Simultaneously, the subject’s interest is heightened. As such, the act/experience of wondering may lead to humility and respect, the two attitudes at the base of any ethically flourishing life—a life that flourishes with others. For this reason, the Asian American woman writer and peace activist Maxine Hong Kingston espoused wondering. Affiliated with groups marginalized within the US, like Kingston my writers also promote wonder. I examine how these writers, through compelling use of both content and form, guide their readers toward a particular kind of wondering: wondering with an awareness of how the act/experience might lead to ethical flourishing.
Gas and dust around A-type stars at tens of Myr:signatures of cometary breakup
Creators: name: Greaves, J S
name: Holland, W S
name: Matthews, B C
name: Marshall, J P
name: Dent, W R F
name: Woitke, P
name: Wyatt, M C
name: Matra, L
name: Jackson, A
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Discs of dusty debris around main-sequence star indicate fragmentation of orbiting planetesimals, and for a few A-type stars, a gas component is also seen that may come from collisionally-released volatiles. Here we find the sixth example of a CO-hosting disc, around the 30Myr old A0-star HD 32297. Two more of these CO-hosting stars, HD 21997 and 49 Cet, have also been imaged in dust with SCUBA-2 within the SONS project. A census of 27 A-type debris hosts within 125 pc now shows 7/16 detections of carbon-bearing gas within the 5-50 Myr epoch, with no detections in 11 older systems. Such a prolonged period of high fragmentation rates corresponds quite well to the epoch when most of the Earth was assembled from planetesimal collisions. Recent models propose that collisional products can be spatially asymmetric if they originate at one location in the disc, with CO particularly exhibiting this behaviour as it can photodissociate in less than an orbital period. Of the six CO-hosting systems, only beta Pic is in clear support of this hypothesis. However, radiative transfer modelling with the ProDiMo code shows that the CO is also hard to explain in a proto-planetary disc context.
description: Accepted in MNRAS
Inclusion and Diversity: Bars within Bars
Creators: name: de Lorenzo-Cáceres, Adriana
Publisher: name: Zenodo
Year: 2023
Subjects: Galaxies
Stellar bars
Double bars
Stellar kinematics
Stellar populations
Supermassive black hole feeding
Pattern speed
Formation
Evolution
Structure

description: Invited talk about double-barred galaxies for the conference "Galactic bars: driving and decoding galaxy evolution" (Granada, 3-7 July, 2023).
GTnum PERSEUS #InteractionHybridation - Influences transformatives sur les pratiques des élèves
Creators: name: Vitel, Sylvie
name: Ciré, Isabelle
name: Keller, Lola
Publisher: name: Zenodo
Year: 2023
Subjects: Influences transformatives
Elèves

description: Une infographie reprenant les points clefs du cahier d'expérience portant sur les influences transformatives sur les pratiques des élèves.
Photon initiated single top quark production via flavor-changing neutral currents at the LHC
Creators: name: Goldouzian, Reza
name: Clerbaux, Barbara
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Single top quark production is a powerful process to search for new physics signs. In this work we propose and investigate a search for top quark flavor changing neutral currents (FCNC) via a photon using direct single top quark production events in proton-proton collisions at the LHC at CERN. We show that the direct single top quark final state can provide constraints on the strengths of tq$γ$ (top-quark-$γ$) and tqg (top-quark-gluon) FCNC couplings simultaneously. Results of a search for direct single top quark production at the LHC at a center-of-mass energy of 8 TeV performed by the ATLAS collaboration are used to set first experimental limits on the anomalous FCNC top decay branching fractions ${\cal B}$(t$\rightarrow$ u$γ$) $
description: 19 pages, 6 figures, 6 tables
Renormalized stress-energy tensor of an evaporating spinning black hole
Creators: name: Levi, Adam
name: Eilon, Ehud
name: Ori, Amos
name: van de Meent, Maarten
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We employ a recently developed mode-sum regularization method to compute the renormalized stress-energy tensor of a quantum field in the Kerr background metric (describing a stationary spinning black hole). More specifically, we consider a minimally-coupled massless scalar field in the Unruh vacuum state, the quantum state corresponding to an evaporating black hole. The computation is done here for the case $a=0.7M$, using two different variants of the method: $t$-splitting and $φ$-splitting, yielding good agreement between the two (in the domain where both are applicable). We briefly discuss possible implications of the results for computing semiclassical corrections to certain quantities, and also for simulating dynamical evaporation of a spinning black hole.
description: 5 pages, 4 figures