cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heteroclinic path to spatially localized chaos in pipe flow
Creators: name: Budanur, Nazmi Burak
name: Hof, Björn
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In shear flows at transitional Reynolds numbers, localized patches of turbulence, known as puffs, coexist with the laminar flow. Recently, Avila et al., Phys. Rev. Let. 110, 224502 (2013) discovered two spatially localized relative periodic solutions for pipe flow, which appeared in a saddle-node bifurcation at low speeds. Combining slicing methods for continuous symmetry reduction with Poincaré sections for the first time in a shear flow setting, we compute and visualize the unstable manifold of the lower-branch solution and show that it contains a heteroclinic connection to the upper branch solution. Surprisingly this connection even persists far above the bifurcation point and appears to mediate puff generation, providing a dynamical understanding of this phenomenon.
description: 10 pages, 5 figures
Mixed-order phase transition of the contact process near multiple junctions
Creators: name: Juhász, R.
name: Iglói, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have studied the phase transition of the contact process near a multiple junction of $M$ semi-infinite chains by Monte Carlo simulations. As opposed to the continuous transitions of the translationally invariant ($M=2$) and semi-infinite ($M=1$) system, the local order parameter is found to be discontinuous for $M>2$. Furthermore, the temporal correlation length diverges algebraically as the critical point is approached, but with different exponents on the two sides of the transition. In the active phase, the estimate is compatible with the bulk value, while in the inactive phase it exceeds the bulk value and increases with $M$. The unusual local critical behavior is explained by a scaling theory with an irrelevant variable, which becomes dangerous in the inactive phase. Quenched spatial disorder is found to make the transition continuous in agreement with earlier renormalization group results.
description: 9 pages, 9 figures
Bridging quantum many-body scar and quantum integrability in Ising chains with transverse and longitudinal fields
Creators: name: Peng, Cheng
name: Cui, Xiaoling
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum many-body scar (QMBS) and quantum integrability(QI) have been recognized as two distinct mechanisms for the breakdown of eigenstate thermalization hypothesis(ETH) in an isolated system. In this work, we reveal a smooth route to connect these two ETH-breaking mechanisms in the Ising chain with transverse and longitudinal fields. Specifically, starting from an initial Ising anti-ferromagnetic state, we find that the dynamical system undergoes a smooth non-thermal crossover from QMBS to QI by changing the Ising coupling($J$) and longitudinal field($h$) simultaneously while keeping their ratio fixed, which corresponds to the Rydberg Hamiltonian with an arbitrary nearest-neighbor repulsion. Deviating from this ratio, we further identify a continuous thermalization trajectory in ($h,J$) plane that is exactly given by the Ising transition line, signifying an intimate relation between thermalization and quantum critical point. Finally, we map out a completely different dynamical phase diagram starting from an initial ferromagnetic state, where the thermalization is shown to be equally facilitated by the resonant spin-flip at special ratios of $J$ and $h$. By bridging QMBS and QI in Ising chains, our results demonstrate the breakdown of ETH in much broader physical settings, which also suggest an alternative way to characterize quantum phase transition via thermalization in non-equilibrium dynamics.
description: 11 pages, 13 figures; accepted version by PRB
GeoECG: Data Augmentation via Wasserstein Geodesic Perturbation for Robust Electrocardiogram Prediction
Creators: name: Zhu, Jiacheng
name: Qiu, Jielin
name: Yang, Zhuolin
name: Weber, Douglas
name: Rosenberg, Michael A.
name: Liu, Emerson
name: Li, Bo
name: Zhao, Ding
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: There has been an increased interest in applying deep neural networks to automatically interpret and analyze the 12-lead electrocardiogram (ECG). The current paradigms with machine learning methods are often limited by the amount of labeled data. This phenomenon is particularly problematic for clinically-relevant data, where labeling at scale can be time-consuming and costly in terms of the specialized expertise and human effort required. Moreover, deep learning classifiers may be vulnerable to adversarial examples and perturbations, which could have catastrophic consequences, for example, when applied in the context of medical treatment, clinical trials, or insurance claims. In this paper, we propose a physiologically-inspired data augmentation method to improve performance and increase the robustness of heart disease detection based on ECG signals. We obtain augmented samples by perturbing the data distribution towards other classes along the geodesic in Wasserstein space. To better utilize domain-specific knowledge, we design a ground metric that recognizes the difference between ECG signals based on physiologically determined features. Learning from 12-lead ECG signals, our model is able to distinguish five categories of cardiac conditions. Our results demonstrate improvements in accuracy and robustness, reflecting the effectiveness of our data augmentation method.
description: 26 pages, Figure 13, Machine Learning for Healthcare 2022
Additional file 3 of Quantity and quality of napping to mitigate fatigue and sleepiness among nurses working long night shifts: a prospective observational study
Creators: name: Watanabe, Kazuhiro
name: Shishido, Inaho
name: Ito, Yoichi M.
name: Yano, Rika
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Additional file 3. Night shift-related factors.
Bistable colloidal orientation near a charged surface
Creators: name: Singh, Mohit
name: Tsori, Yoav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Anisotropic particles oriented in a specific direction can act as artificial atoms and molecules, and their controlled assembly can result in a wide variety of ordered structures. Towards this, we demonstrate the orientation transitions of uncharged peanut-shaped polystyrene colloids, suspended in a non-ionic aprotic polar solvent, near a flat surface whose potential is static or time-varying. The charged surface is coated with an insulating dielectric layer to suppress electric currents. The transition between several orientation states such as random, normal or parallel orientation with respect to the surface, is examined for two different colloid sizes at low-frequency ($\sim 10-350$ kHz) or static fields, and at small electric potentials. In time-varying (AC) field, a detailed phase diagram in the potential-frequency plane indicating the transition between particles parallel or normal to the surface is reported. We next present the first study of orientation switching in static (DC) fields, where no electro-osmotic or other flow is present. A reversible change between the two colloidal states is explained by a theory showing that the sum of electrostatic and gravitational energies of the colloid is bistable. The number of colloids in each of the two states depends on the external potential, particle and solvent permittivities, particle aspect ratio, and distance from the electrode.
description: 19 pages, 8 figures, accepted to Colloids and Surfaces A: Physicochemical and Engineering Aspects (2022)
Energy-Momentum Complex in Higher Order Curvature-Based Local Gravity
Creators: name: Capozziello, Salvatore
name: Capriolo, Maurizio
name: Lambiase, Gaetano
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In General Relativity, there have been many proposals for defining the gravitational energy density, notably those proposed by Einstein, Tolman, Landau and Lifshitz, Papapetrou, Møller, and Weinberg. In this review, we firstly explored the energy--momentum complex in an $n^{th}$ order gravitational Lagrangian $L=L\left(g_{μν}, g_{μν,i_{1}}, g_{μν,i_{1}i_{2}},g_{μν,i_{1}i_{2}i_{3}},\cdots, g_{μν,i_{1}i_{2}i_{3}\cdots i_{n}}\right)$ and then in a gravitational Lagrangian as \mbox{$L_{g}=(\overline{R}+a_{0}R^{2}+\sum_{k=1}^{p} a_{k}R\Box^{k}R)\sqrt{-g}$}. Its gravitational part was obtained by invariance of gravitational action under infinitesimal rigid translations using Noether's theorem. We also showed that this tensor, in general, is not a covariant object but only an affine object, that is, a pseudo-tensor. Therefore, the pseudo-tensor $τ^η_α$ becomes the one introduced by Einstein if we limit ourselves to General Relativity and its extended corrections have been explicitly indicated. The same method was used to derive the energy--momentum complex in $ f\left (R \right) $ gravity both in Palatini and metric approaches. Moreover, in the weak field approximation the pseudo-tensor $τ^η_α$ to lowest order in the metric perturbation $h$ was calculated. As a practical application, the power per unit solid angle $Ω$ emitted by a localized source carried by a gravitational wave in a direction $\hat{x}$ for a fixed wave number $\mathbf{k}$ under a suitable gauge was obtained, through the average value of the pseudo-tensor over a suitable spacetime domain and the local conservation of the pseudo-tensor. As a cosmological application, in a flat Friedmann--Lemaître--Robertson--Walker spacetime, the gravitational and matter energy density in $f(R)$ gravity both in Palatini and metric formalism was proposed.
description: 33 pages, accepted for publication in Particles
Additional file 4 of Quantity and quality of napping to mitigate fatigue and sleepiness among nurses working long night shifts: a prospective observational study
Creators: name: Watanabe, Kazuhiro
name: Shishido, Inaho
name: Ito, Yoichi M.
name: Yano, Rika
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Additional file 4. Comparison of fatigue at the end of the night shift between combined TIB and SE groups.
Graphene-based electron transport layers in perovskite solar cells: a step-up for an efficient carrier collection
Creators: name: Biccari, F.
name: Gabelloni, F.
name: Burzi, E.
name: Gurioli, M.
name: Pescetelli, S.
name: Agresti, A.
name: Castillo, A. E. Del Rio
name: Ansaldo, A.
name: Kymakis, E.
name: Bonaccorso, F.
name: Di Carlo, A.
name: Vinattieri, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The electron transport layer (ETL) plays a fundamental role in perovskite solar cells. Recently, graphene-based ETLs have been proved to be good candidate for scalable fabrication processes and to achieve higher carrier injection with respect to most commonly used ETLs. In this work we experimentally study the effects of different graphene-based ETLs in sensitized MAPI solar cells. By means of time-integrated and picosecond time-resolved photoluminescence techniques, the carrier recombination dynamics in MAPI films embedded in different ETLs is investigated. Using graphene doped mesoporous TiO2 (G+mTiO2) with the addition of a lithium-neutralized graphene oxide (GO-Li) interlayer as ETL, we find that the carrier collection efficiency is increased by about a factor two with respect to standard mTiO2. Taking advantage of the absorption coefficient dispersion, we probe the MAPI layer morphology, along the thickness, finding that the MAPI embedded in the ETL composed by G+mTiO2 plus GO-Li brings to a very good crystalline quality of the MAPI layer with a trap density about one order of magnitude lower than that found with the other ETLs. In addition, this ETL freezes MAPI at the tetragonal phase, regardless of the temperature. Graphene-based ETLs can open the way to significant improvement of perovskite solar cells.
description: 7 pages, 5 figures, Supporting Information
Performance Tests of Feature Extraction Algorithms for Short Preamplifier Transients
Creators: name: Flemming, Holger
name: Noll, Oliver
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In this work the extraction of pulse time and amplitude from short pulse transients is analysed as they are recorded by a transient recorder ASIC called ATR16. Algorithms of different complexity are tested with simulated preamplifier data processed with a VHDL model of the ATR16 ASIC. It is shown that a time precision below 1 ns and a signal amplitude precision below 1 MeV energy equivalent is feasible.
An Adaptive and Altruistic PSO-based Deep Feature Selection Method for Pneumonia Detection from Chest X-Rays
Creators: name: Pramanik, Rishav
name: Sarkar, Sourodip
name: Sarkar, Ram
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Pneumonia is one of the major reasons for child mortality especially in income-deprived regions of the world. Although it can be detected and treated with very less sophisticated instruments and medication, Pneumonia detection still remains a major concern in developing countries. Computer-aided based diagnosis (CAD) systems can be used in such countries due to their lower operating costs than professional medical experts. In this paper, we propose a CAD system for Pneumonia detection from Chest X-rays, using the concepts of deep learning and a meta-heuristic algorithm. We first extract deep features from the pre-trained ResNet50, fine-tuned on a target Pneumonia dataset. Then, we propose a feature selection technique based on particle swarm optimization (PSO), which is modified using a memory-based adaptation parameter, and enriched by incorporating an altruistic behavior into the agents. We name our feature selection method as adaptive and altruistic PSO (AAPSO). The proposed method successfully eliminates non-informative features obtained from the ResNet50 model, thereby improving the Pneumonia detection ability of the overall framework. Extensive experimentation and thorough analysis on a publicly available Pneumonia dataset establish the superiority of the proposed method over several other frameworks used for Pneumonia detection. Apart from Pneumonia detection, AAPSO is further evaluated on some standard UCI datasets, gene expression datasets for cancer prediction and a COVID-19 prediction dataset. The overall results are satisfactory, thereby confirming the usefulness of AAPSO in dealing with varied real-life problems. The supporting source codes of this work can be found at https://github.com/rishavpramanik/AAPSO
description: Accepted in Applied Soft Computing, Elsevier
Description de la boha de Germain Lestage
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Majorana nanowires for topological quantum computation
Creators: name: Marra, Pasquale
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Majorana bound states are quasiparticle excitations localized at the boundaries of a topologically nontrivial superconductor. They are zero-energy, charge-neutral, particle-hole symmetric, and spatially-separated end modes which are topologically protected by the particle-hole symmetry of the superconducting state. Due to their topological nature, they are robust against local perturbations and, in an ideal environment, free from decoherence. Furthermore, unlike ordinary fermions and bosons, the adiabatic exchange of Majorana modes is noncommutative, i.e., the outcome of exchanging two or more Majorana modes depends on the order in which exchanges are performed. These properties make them ideal candidates for the realization of topological quantum computers. In this tutorial, I will present a pedagogical review of 1D topological superconductors and Majorana modes in quantum nanowires. I will give an overview of the Kitaev model and the more realistic Oreg-Lutchyn model, discuss the experimental signatures of Majorana modes, and highlight their relevance in the field of topological quantum computation. This tutorial may serve as a pedagogical and relatively self-contained introduction for graduate students and researchers new to the field, as well as an overview of the current state-of-the-art of the field and a reference guide to specialists.
description: 58 pages, 17 figures, accepted version with references and figures updated
Informations sur l'usage des cornes d'appel au Sen. Information négative sur le pihure et la tuhère (trompes d'appel)
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Prediction of anomalies in the velocity of sound for the pseudogap of hole-doped cuprates
Creators: name: Walsh, C.
name: Charlebois, M.
name: Sémon, P.
name: Sordi, G.
name: Tremblay, A. -M. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We predict sound anomalies at the doping $δ_{p}$ where the pseudogap ends in the normal state of hole-doped cuprates. Our prediction is based on the two-dimensional compressible Hubbard model using cluster dynamical mean-field theory. We find sharp anomalies (dips) in the velocity of sound as a function of doping and interaction. These dips are a signature of supercritical phenomena, stemming from an electronic transition without symmetry breaking below the superconducting dome. If experimentally verified, these signatures may help to solve the fundamental question of the nature of the pseudogap -- pinpointing its origin as due to Mott physics and resulting short-range correlations.
description: 6 pages, 3 figures, and supplemental material; accepted version
Additional file 6 of Quantity and quality of napping to mitigate fatigue and sleepiness among nurses working long night shifts: a prospective observational study
Creators: name: Watanabe, Kazuhiro
name: Shishido, Inaho
name: Ito, Yoichi M.
name: Yano, Rika
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Additional file 6. Comparison of Δfatigue from start to end of the night shift between combined TIB and SE groups.
Density waves at the interface of a binary complex plasma
Creators: name: Yang, Li
name: Schwabe, Mierk
name: Zhdanov, Sergey
name: Thomas, Hubertus M.
name: Lipaev, Andrey M
name: Molotkov, Vladimir I
name: Fortov, Vladimir E
name: Zhang, Jing
name: Du, Cheng-Ran
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Density waves were studied in a phase-separated binary complex plasma under microgravity conditions. For the big particles, waves were self-excited by the two-stream instability, while for small particles, they were excited by heartbeat instability with the presence of reversed propagating pulses of a different frequency. By studying the dynamics of wave crests at the interface, we recognize a "collision zone" and a "merger zone" before and after the interface, respectively. The results provide a generic picture of wave-wave interaction at the interface between two "mediums".
Thermoelectric properties of the misfit cobaltate Ca$_3$Co$_4$O$_9$
Creators: name: Amin, Bin
name: Eckern, Ulrich
name: Schwingenschlögl, Udo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The layered misfit cobaltate Ca$_3$Co$_4$O$_9$, also known as Ca$_2$CoO$_3$[CoO$_2$]$_{1.62}$, is a promising p-type thermoelectric oxide. Employing density functional theory, we study its electronic structure and determine, on the basis of Boltzmann theory within the constant-relaxation-time approximation, the thermoelectric transport coefficients. The dependence on strain and temperature is determined. In particular, we find that the $xx$-component of the thermopower is strongly enhanced, while the $yy$-component is strongly reduced, when applying 2% tensile strain. A similar anisotropy is also found in the power factor. The temperature dependence of the conductivity in the $a$-$b$ plane is found to be rather weak above 200 K, which clearly indicates that the experimentally observed transport properties are dominated by inhomogeneities arising during sample growth, i.e., are not intrinsic.
description: 12 pages (preprint style), 5 figures
Informations biographiques sur Germain Lestage et information sur sa cornemuse
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Mechanics of fiber networks under a bulk strain
Creators: name: Arzash, Sadjad
name: Sharma, Abhinav
name: MacKintosh, Fred C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Biopolymer networks are common in biological systems from the cytoskeleton of individual cells to collagen in the extracellular matrix. The mechanics of these systems under applied strain can be explained in some cases by a phase transition from soft to rigid states. For collagen networks, it has been shown that this transition is critical in nature and it is predicted to exhibit diverging fluctuations near a critical strain that depends on the network's connectivity and structure. Whereas prior work focused mostly on shear deformation that is more accessible experimentally, here we study the mechanics of such networks under an applied bulk or isotropic extension. We confirm that the bulk modulus of subisostatic fiber networks exhibits similar critical behavior as a function of bulk strain. We find different non-mean-field exponents for bulk as opposed to shear. We also confirm a similar hyperscaling relation to what previously found for shear.
description: 5 pages, 4 figures
Causal bubbles in globally hyperbolic spacetimes
Creators: name: García-Heveling, Leonardo
name: Soultanis, Elefterios
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53C50 (Primary) 83C75 (Secondary)

description: We give an example of a spacetime with a continuous metric which is globally hyperbolic and exhibits causal bubbling. The metric moreover splits orthogonally into a timelike and a spacelike part. We discuss our example in the context of energy conditions and the recently introduced synthetic timelike curvature-dimension (TCD) condition. In particular we observe that the TCD-condition does not, by itself, prevent causal bubbling.
description: 5 pages, 1 figure
Level statistics of real eigenvalues in non-Hermitian systems
Creators: name: Xiao, Zhenyu
name: Kawabata, Kohei
name: Luo, Xunlong
name: Ohtsuki, Tomi
name: Shindou, Ryuichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Symmetries associated with complex conjugation and Hermitian conjugation, such as time-reversal symmetry and pseudo-Hermiticity, have great impact on eigenvalue spectra of non-Hermitian random matrices. Here, we show that time-reversal symmetry and pseudo-Hermiticity lead to universal level statistics of non-Hermitian random matrices on and around the real axis. From the extensive numerical calculations of large random matrices, we obtain the five universal level-spacing and level-spacing-ratio distributions of real eigenvalues, each of which is unique to the symmetry class. Furthermore, we analyse spacings of real eigenvalues in physical models, such as bosonic many-body systems and free fermionic systems with disorder and dissipation. We clarify that the level spacings in ergodic (metallic) phases are described by the universal distributions of non-Hermitian random matrices in the same symmetry classes, while the level spacings in many-body localized and Anderson localized phases show the Poisson statistics. We also find that the number of real eigenvalues shows distinct scalings in the ergodic and localized phases in these symmetry classes. These results serve as effective tools for detecting quantum chaos, many-body localization, and real-complex transitions in non-Hermitian systems with symmetries.
description: 32 pages
Reconstruction of interaction rate in Holographic dark energy model with Hubble horizon as the infrared cut-off
Creators: name: Mamon, Abdulla Al
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This work is the reconstruction of the interaction rate of holographic dark energy whose infrared cut-off scale is set by the Hubble length. We have reconstructed the interaction rate between dark matter and the holographic dark energy for a specific parameterization of the effective equation of state parameter. We have obtained observational constraints on the model parameters using the latest Type Ia Supernova (SNIa), Baryon Acoustic Oscillations (BAO) and Cosmic Microwave Background (CMB) radiation datasets. We have found that for the present model, the interaction rate increases with expansion and remains positive throughout the evolution. For a comprehensive analysis, we have also compared the reconstructed results of the interaction rate with other well-known holographic dark energy models. The nature of the deceleration parameter, the statefinder parameters and the dark energy equation of state parameter have also been studied for the present model. It has been found that the deceleration parameter favors the past decelerated and recent accelerated expansion phase of the universe. It has also been found that the dark energy equation of state parameter shows a phantom nature at the present epoch.
description: 8 pages, 6 figures, Accepted for publication in IJMPD
Near-unity efficiency in ridge waveguide-based, on-chip single-photon sources
Creators: name: Wang, Yujing
name: Vannucci, Luca
name: Burger, Sven
name: Gregersen, Niels
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a numerical design procedure for pursuing a near-unity coupling efficiency in quantum dot-cavity ridge waveguide single-photon sources by performing simulations with the finite element method. Our optimum design which is based on a 1D nanobeam cavity, achieves a high source efficiency $ε_{xy}$ of 97.7$\%$ for an isotropic in-plane dipole, together with a remarkable Purcell factor of 38.6. Such a good performance is mainly attributed to the high index contrast of GaAs/SiO$_2$ and a careful cavity design achieving constructive interference and low scattering losses. Furthermore, we analyze the bottleneck of the proposed platform, which is the mode mismatch between the cavity mode and the Bloch mode in the nanobeam. Accordingly, we present the optimization recipe of an arbitrarily high-efficiency on-chip single-photon source by implementing a taper section, whose high smoothness is beneficial to gradually overcoming the mode mismatch, and therefore leading to a higher Purcell factor and source efficiency. Finally, we see good robustness of the source properties in the taper-nanobeam system under the consideration of realistic fabrication imperfections on the hole variation.
Prediction with Dimension Reduction of Multiple Molecular Data Sources for Patient Survival
Creators: name: Kaplan, Adam
name: Lock, Eric F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Predictive modeling from high-dimensional genomic data is often preceded by a dimension reduction step, such as principal components analysis (PCA). However, the application of PCA is not straightforward for multi-source data, wherein multiple sources of 'omics data measure different but related biological components. In this article we utilize recent advances in the dimension reduction of multi-source data for predictive modeling. In particular, we apply exploratory results from Joint and Individual Variation Explained (JIVE), an extension of PCA for multi-source data, for prediction of differing response types. We conduct illustrative simulations to illustrate the practical advantages and interpretability of our approach. As an application example we consider predicting survival for Glioblastoma Multiforme (GBM) patients from three data sources measuring mRNA expression, miRNA expression, and DNA methylation. We also introduce a method to estimate JIVE scores for new samples that were not used in the initial dimension reduction, and study its theoretical properties; this method is implemented in the R package R.JIVE on CRAN, in the function 'jive.predict'.
description: 11 pages, 9 figures
Regularity of envelopes in Kähler classes
Creators: name: Tosatti, Valentino
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J96, 32Q15, 32W20, 53C55

description: We establish the C^{1,1} regularity of quasi-psh envelopes in a Kahler class, confirming a conjecture of Berman.
description: 7 pages; final version to appear in Math. Res. Lett
Changing effects of education on parents' time with children
Creators: name: Chalasani, Satvika
Publisher: name: The University of Texas at Austin
Year: 2005
Subjects: Parent’s education level
Parent-child time

description: I examine educational differences in the time that American parents spend with their children, and how these differences have changed between 1985 and 2003. I also examine educational differences in the ratio of mothers’ child time to fathers’ child time. The results indicate that better educated parents used to and continue to spend more time with their children than the less educated. Although parents at all levels of education have increased their time with children, the better educated have made relatively larger gains. Further, the ratio of mothers’ to fathers’ child time was and continues to be lower for the better educated than the less educated. Finally, I find that the gender gap in parent-child time has narrowed at every education level between 1985 and 2003
Two-loop improved predictions for $M_W$ and $\sin^2θ_{eff}$ in Two-Higgs-Doublet Models
Creators: name: Hessenberger, Stephan
name: Hollik, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the currently most precise predictions for the $W$-boson mass and the leptonic effective mixing angle $\sin^2θ_{\text{eff}}$ in the aligned Two-Higgs-Doublet Model. The evaluation includes the full one-loop result, all known higher-order corrections of the Standard Model, and the non-standard two-loop contributions that increase with mass splittings between charged and neutral THDM Higgs bosons. They depend on $\tanβ$ and the soft $Z_2$-symmetry breakingparameter $m_{12}^2$ of the scalar potential, in addition to the non-standard boson masses. Whenever the one-loop corrections become large, the two-loop contributions yield substantial modifications of the predictions, which is of particular importance for the $W$ mass where large mass shifts are required to reach the recently published final resultof the CDF collaboration. Numerical results are shown for the dependence on the various non-standard parameters and in comparison with experimental data.
description: 26 pages, 5 figures
IEDC: An Integrated Approach for Overlapping and Non-overlapping Community Detection
Creators: name: Hajiabadi, Mahdi
name: Zare, Hadi
name: Bobarshad, Hossein
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Community detection is a task of fundamental importance in social network analysis that can be used in a variety of knowledge-based domains. While there exist many works on community detection based on connectivity structures, they suffer from either considering the overlapping or non-overlapping communities. In this work, we propose a novel approach for general community detection through an integrated framework to extract the overlapping and non-overlapping community structures without assuming prior structural connectivity on networks. Our general framework is based on a primary node based criterion which consists of the internal association degree along with the external association degree. The evaluation of the proposed method is investigated through the extensive simulation experiments and several benchmark real network datasets. The experimental results show that the proposed method outperforms the earlier state-of-the-art algorithms based on the well-known evaluation criteria.
description: The paper is accepted in Knowledge-Based Systems journal, 12 Figures, 6 Tables
Information sur l'emploi par Germain Lestage des termes tchalemine et boha pour désigner la cornemuse
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Acculturation and Language: An Examination of Chinese International Students’ Experience in the US
Creators: name: Bo, Haizhao (Jenny)
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: International Students
subject: Chinese International Students
subject: Language Perception
subject: Acculturation
subject: Study Abroad
subject: Higher Education

description: International students often face a unique set of situational, socio-economic, and cultural challenges while becoming accustomed to life abroad. This study examines the study abroad experience of Chinese international students (CIS), who hold vastly different cultural and linguistic backgrounds, in the United States (US). Specifically, centering around understanding how self-perceived language perception may influence acculturation practices. Semi-structured interviews were conducted with 20 CIS divided into two groups, ten freshmen and sophomores and ten first-year master's students at the University of Chicago. Those two groups were selected to examine the effect that different study abroad duration may have on acculturative practices. Thematic analyses and other coding methods were implemented to reveal their experiences. Results found a close bi-directional relationship between the interlocutors' self-perception of language proficiency (high, intermediate, low) and the acculturation strategy (separation, integration, assimilation, and marginalization). This result in an upward spirals effect marked by specific adaptations to counter acculturative stress, meaning CIS will increasingly rely on the acculturative strategy they utilized before to help them cope with future stressors. The degree and roles of the students' existing cultural pluralistic attitudes, study abroad goals, study abroad duration and availability, perception, and reception of co-national and host-national, as well as recommendation for policy change, is also discussed.
The Sent-down Movement: Navigating Collective Memories of Trauma in Contemporary China
Creators: name: Liu, Tingxi
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Collective Memory, Sent-down Movement, Oblivion, Transgeneration

description: The sent-down movement in the 1960s and 1970s China influences a generation of urban youths. Despite the lively discussion of the movement in the two decades since its end, the collective memory of the movement has almost disappeared from public view in contemporary China in the twenty-first century. Through interviews and digital ethnography, this paper explores what specific factors most interrupted the inheritance and spread of collective memory of the sent-down movement from a transgenerational perspective. From the sent-down youth to their children and grandchildren, collective memory does not simply develop undistorted. Instead, the personal experience of each generation, the relationships within and between their respective communities, and the bigger pictures painted of social change all play a crucial role. The complexity of the memory inheritance process calls into question our assumptions about memory, agency, and oblivion.
Unveiling the hosts of parsec-scale massive black hole binaries: morphology and electromagnetic signatures
Creators: name: Izquierdo-Villalba, David
name: Sesana, Alberto
name: Colpi, Monica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Parsec-scale massive black hole binaries (MBHBs) are expected to form in hierarchical models of structure formation. Even though different observational strategies have been designed to detect these systems, a theoretical study is a further guide for their search and identification. In this work, we investigate the hosts properties and the electromagnetic signatures of massive black holes gravitationally bound on parsec-scales with primary mass $\rm {>}\,10^7\,M_{\odot}$. For that, we construct a full-sky lightcone by the use of the semi-analytical model L-Galaxies in which physically motivated prescriptions for the formation and evolution of MBHBs have been included. Our predictions show that the large majority of the MBHBs are placed either in spiral galaxies with a classical bulge structure or in elliptical galaxies. Besides, the scaling relations followed by MBHBs are indistinguishable from the ones of single massive black holes. We find that the occupation fraction of parsec-scale MBHBs reaches up to ${\sim}\,50\%$ in galaxies with $\rm M_{stellar}\,{>}\,10^{11}\, M_{\odot}$ and drops below 10\% for $\rm M_{stellar}\,{<}\,10^{11}\, M_{\odot}$. Our model anticipates that the majority of parsec-scale MBHBs are unequal mass systems and lie at $z\,{\sim}\,0.5$, with ${\sim}\,20$ objects per $\rm deg^2$ in the sky. However, most of these systems are inactive, and only $1\,{-}\,0.1$ objects per $\rm deg^2$ have an electromagnetic counterpart with a bolometric luminosity in excess of $10^{43}$ erg/s. Very luminous phases of parsec-scale MBHBs are more common at $z\,{>}\,1$ but the number of binaries per $\rm deg^2$ is ${\lesssim}\,0.01$ at $\rm L_{\rm bol}\,{>}\,10^{45} \rm erg/s$.
description: 19 pages, 16 Figures, Accepted by MNRAS
Animacy and Audience Design: Representations of Core Components of Motion Events are Influenced by Conceptual and Pragmatic Factors
Creators: name: Kesan, James Ravi
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Psycholinguistics
subject: Audience Design
subject: Event Cognition
subject: Pragmatics
subject: Language Production
subject: Animacy
subject: Motion Events

description: We examined the conceptual and pragmatic factors that influence memory (Experiment 1) and language (Experiment 2) for the conceptually core elements of simple source-goal motion events – the goal, or endpoint of motion. In Experiment 1, we presented animate or inanimate events to separate groups of participants and found that animate events were remembered more accurately than endpoints of inanimate events. In Experiment 2 we examined the influence of pragmatic factors related to audience design on participants’ linguistic choices using an elicited production paradigm. We found that, unlike with sources or starting points of motion, the choice to mention or omit the goal was not affected by whether the goal was already known or unknown to the interlocutor. But the way that speakers talked about the goals did vary as a consequence of the pragmatic status of the goal. Our results shed light on the representation of inanimacy in the context of source-goal motion events and in conceptual representations of animacy, more generally. They also shed light on the way in which pragmatic factors related to audience design can affect language for conceptually core versus conceptually peripheral elements of events. We discuss the implications of our findings for theories of event cognition and language production.
Bound State Formation in Time Dependent Potentials
Creators: name: Rais, Jan
name: van Hees, Hendrik
name: Greiner, Carsten
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the temporal formation of quantum mechanical bound states within a one-dimensional attractive square-well potential, by first solving the time-independent Schroedinger equation and then study a time dependent system with an external time-dependent potential. For this we introduce Gaussian potentials with different spatial and temporal extensions, and generalize this description also for subsequent pulses and for random, noisy potentials. Our main goal is to study the time scales, in which the bound state is populated and depopulated. Particularly we clarify a likely connection between the uncertainty relation for energy and time and the transition time between different energy eigenstates. We demonstrate, that the formation of states is not delayed due to the uncertainty relation but follows the pulse shape of the perturbation. In addition we investigate the (non-)applicability of first-order perturbation theory on the considered quantum system.
description: 13 pages, 22 figures
Information sur la fabrication du sac de boha fait par Germain Lestage en 1936. Information sur l'entretien des anches
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Uncertainty Quantification of Oscillation Suppression during DBS in a Coupled Finite Element and Network Model
Creators: name: Schmidt, Christian
name: Dunn, Eleanor
name: Lowery, Madeleine
name: van Rienen, Ursula
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Models of the cortico-basal ganglia network and volume conductor models of the brain can provide insight into the mechanisms of action of deep brain stimulation (DBS). In this study, the coupling of a network model, under parkinsonian conditions, to the extracellular field distribution obtained from a three dimensional finite element model of a rodent's brain during DBS is presented. This coupled model is used to investigate the influence of uncertainty in the electrical properties of brain tissue and encapsulation tissue, formed around the electrode after implantation, on the suppression of oscillatory neural activity during DBS. The resulting uncertainty in this effect of DBS on the network activity is quantified using a computationally efficient and non-intrusive stochastic approach based on the generalized Polynomial Chaos. The results suggest that variations in the electrical properties of brain tissue may have a substantial influence on the level of suppression of oscillatory activity during DBS. Applying a global sensitivity analysis on the suppression of the simulated oscillatory activity showed that the influence of uncertainty in the electrical properties of the encapsulation tissue had only a minor influence, in agreement with previous experimental and computational studies investigating the mechanisms of current-controlled DBS in the literature.
description: 10 pages
Information sur la flûte de Pan en buis des chevriers de Chalosse, information sur les calemets fabriqués par Albert Capin
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract
Informations sur les instruments et musiciens landais
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2022

Abstract