cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Automatic Guidance and Quality Assessment System for Doppler Imaging of Umbilical Artery
Creators: name: Wong, Chun Kit
name: Lin, Manxi
name: Raheli, Alberto
name: Bashir, Zahra
name: Svendsen, Morten Bo Søndergaard
name: Tolsgaard, Martin Grønnebæk
name: Feragen, Aasa
name: Christensen, Anders Nymark
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Examination of the umbilical artery with Doppler ultrasonography is performed to investigate blood supply to the fetus through the umbilical cord, which is vital for the monitoring of fetal health. Such examination involves several steps that must be performed correctly: identifying suitable sites on the umbilical artery for the measurement, acquiring the blood flow curve in the form of a Doppler spectrum, and ensuring compliance to a set of quality standards. These steps rely heavily on the operator's skill, and the shortage of experienced sonographers has thus created a demand for machine assistance. In this work, we propose an automatic system to fill the gap. By using a modified Faster R-CNN network, we obtain an algorithm that can suggest locations suitable for Doppler measurement. Meanwhile, we have also developed a method for assessment of the Doppler spectrum's quality. The proposed system is validated on 657 images from a national ultrasound screening database, with results demonstrating its potential as a guidance system.
description: Fetal Ultrasound, Umbilical Artery, Doppler Ultrasound
Disc galaxy modelling with a particle-by-particle M2M method
Creators: name: Hunt, Jason A. S.
name: Kawata, Daisuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have developed the initial version of a new particle-by-particle adaptation of the made-to-measure (M2M) method, aiming to model the Galactic disc from upcoming Galactic stellar survey data. In our new particle-by-particle M2M, the observables of the target system are compared with those of the model galaxy at the position of the target stars (i.e. particles). The weights of the model particles are changed to reproduce the observables of the target system, and the gravitational potential is automatically adjusted by the changing weights of the particles. This paper demonstrates, as the initial work, that the particle-by-particle M2M can recreate a target disc system created by an N-body simulation in a known dark matter potential, with no error in the observables. The radial profiles of the surface density, velocity dispersion in the radial and perpendicular directions, and the rotational velocity of the target disc are all well reproduced from the initial disc model, whose scale length is different from that of the target disc. We also demonstrate that our M2M can be applied to an incomplete data set and recreate the target disc reasonably well when the observables are restricted to a part of the disc. We discuss our calibration of the model parameters and the importance of regularization.
description: 13 pages, 13 figures, accepted for publication in MNRAS
A localized orthogonal decomposition method for semi-linear elliptic problems
Creators: name: Henning, Patrick
name: Malqvist, Axel
name: Peterseim, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we propose and analyze a new Multiscale Method for solving semi-linear elliptic problems with heterogeneous and highly variable coefficient functions. For this purpose we construct a generalized finite element basis that spans a low dimensional multiscale space. The basis is assembled by performing localized linear fine-scale computations in small patches that have a diameter of order H |log H| where H is the coarse mesh size. Without any assumptions on the type of the oscillations in the coefficients, we give a rigorous proof for a linear convergence of the H1-error with respect to the coarse mesh size. To solve the arising equations, we propose an algorithm that is based on a damped Newton scheme in the multiscale space.
Safe Navigation and Obstacle Avoidance Using Differentiable Optimization Based Control Barrier Functions
Creators: name: Dai, Bolun
name: Khorrambakht, Rooholla
name: Krishnamurthy, Prashanth
name: Gonçalves, Vinícius
name: Tzes, Anthony
name: Khorrami, Farshad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Control barrier functions (CBFs) have been widely applied to safety-critical robotic applications. However, the construction of control barrier functions for robotic systems remains a challenging task. Recently, collision detection using differentiable optimization has provided a way to compute the minimum uniform scaling factor that results in an intersection between two convex shapes and to also compute the Jacobian of the scaling factor. In this letter, we propose a framework that uses this scaling factor, with an offset, to systematically define a CBF for obstacle avoidance tasks. We provide theoretical analyses of the continuity and continuous differentiability of the proposed CBF. We empirically evaluate the proposed CBF's behavior and show that the resulting optimal control problem is computationally efficient, which makes it applicable for real-time robotic control. We validate our approach, first using a 2D mobile robot example, then on the Franka-Emika Research 3 (FR3) robot manipulator both in simulation and experiment.
The influence of laser relative intensity noise in the Laser Interferometer Space Antenna
Creators: name: Wissel, Lennart
name: Hartwig, Olaf
name: Bayle, Jean-Baptiste
name: Staab, Martin
name: Fitzsimons, Ewan D.
name: Hewitson, Martin
name: Heinzel, Gerhard
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: LISA is an upcoming ESA mission that will detect gravitational waves in space by interferometrically measuring the separation between free-falling test masses at picometer precision. To reach the desired performance, LISA will employ the noise reduction technique time-delay interferometry (TDI), in which multiple raw interferometric readouts are time shifted and combined into the final scientific observables. Evaluating the performance in terms of these TDI variables requires careful tracking of how different noise sources propagate through TDI, as noise correlations might affect the performance in unexpected ways. One example of such potentially correlated noise is the relative intensity noise (RIN) of the six lasers aboard the three LISA satellites, which will couple into the interferometric phase measurements. In this article, we calculate the expected RIN levels based on the current mission architecture and the envisaged mitigation strategies. We find that strict requirements on the technical design reduce the effect from approximately 8.7 pm/rtHz per inter-spacecraft interferometer to that of a much lower sub-1 pm/rtHz noise, with typical characteristics of an uncorrelated readout noise after TDI. Our investigations underline the importance of sufficient balanced detection of the interferometric measurements.
description: 15 pages, 10 figures, 2 tables
A hybrid quantum-classical approach for inference on restricted Boltzmann machines
Creators: name: Kālis, Mārtiņš
name: Locāns, Andris
name: Šikovs, Rolands
name: Naseri, Hassan
name: Ambainis, Andris
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Boltzmann machine is a powerful machine learning model with many real-world applications, for example by constructing deep belief networks. Statistical inference on a Boltzmann machine can be carried out by sampling from its posterior distribution. However, uniform sampling from such a model is not trivial due to an extremely multi-modal distribution. Quantum computers have the promise of solving some non-trivial problems in an efficient manner. We explored the application of a D-Wave quantum annealer to generate samples from a restricted Boltzmann machine. The samples are further improved by Markov chains in a hybrid quantum-classical setup. We demonstrated that quantum annealer samples can improve the performance of Gibbs sampling compared to random initialization. The hybrid setup is considerably more efficient than a pure classical sampling. We also investigated the impact of annealing parameters (temperature) to improve the quality of samples. By increasing the amount of classical processing (Gibbs updates) the benefit of quantum annealing vanishes, which may be justified by the limited performance of today's quantum computers compared to classical.
description: 23 pages, 12 figures
1. Tehnici auctoriale de încriptare a simbolului infantil. Studiu de caz: Jean-Jacques Rousseau, Émile, RITL, p. 411-426, ISSN 0034-8392.
Creators: name: Deutsch, Cristina
Publisher: name: figshare
Year: 2023
Subjects: Comparative and transnational literature
Literature in French

description: The present paper attempts, using Jean-Jacques Rousseau's novel, Émile, as a case study, to define a series of auctorial techniques of encrypting the child symbol. This aims to examine how the idea of childhood, seen in a positive light, tries to find a place in literature, the child becoming a character with its own features, an imaginary hero upon whom various techniques can be applied to demonstrate even a philosophical - pedagogical theory such as that of Rousseau. Seen, in fact, as a conventional symbol in fiction, the child will be viewed in this case more as an incarnation of the natural child, changing, in this way, the previous perceptions of childhood, both at a scientific level and at a literary one. For Rousseau, the child is the equivalent of the good being, his evolution depending on education: a natural one in order not to be perverted by society. Rousseauʹs infant hero is essentially an orphan who will be eventually transformed into a rational adult only by the means of education coming from nature, stating that the right answers can be found only by the direct interaction with the uncorrupted environment. Therefore, for Rousseau, the child hero must be able, following his path, to construct a personal world with what is near him – a new type of persona for whom the social conventions are no longer important, but the direct experience is crucial. With Rousseau, the child as a fictional character becomes a symbol of the utility of a certain kind of education as an important part of his integration into the society, changing, therefore, the previous patterns used for giving life to this type of hero. Keywords: French literature, Rousseau, childhood, pedagogical strategies, literary devices, gender studies
The Common Difference Between MIMO With Other Antennas
Creators: name: Huque, M. D. Sirajul
name: Surekha, C.
name: Reddy, S. Pavan Kumar
name: Yadav, Vidhisha
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In past 802.11 systems there is a single Radio Frequency (RF) chain on the Wi-Fi device. Multiple antennas use the same hardware to process the radio signal. So only one antenna can transmit or receive at a time as all radio signals need to go through the single RF chain. In MIMO there can be a separate RF chain for each antenna allowing multiple RF chains to coexist. MIMO technology has attracted attention in wireless communications, because it offers significant increases in data throughput and link range without additional bandwidth or increased transmit power. It achieves this goal by spreading the same total transmit power over the antennas to achieve an array gain that improves the spectral efficiency (more bits per second per hertz of bandwidth) or to achieve a diversity gain that improves the link reliability. Multiple Input/Multiple Output (MIMO) is an area of intense development in the wireless industry because it delivers profound gains in range, throughput and reliability. As a result, manufacturers of wireless local area network (WLAN), wireless metropolitan area network (WMAN), and mobile phone equipment are embracing MIMO technology. In this paper we are interested to compare the MIMO Antenna functions with traditional Antenna functions. And we take an example of IRT for illustration.
description: Published in Computer Science Chronicle
Enhancing Astronomy Studies By Using I.U.C.A.A Video Lectures In Student’S Community
Creators: name: Narayanasamy, Nageswaran
Publisher: name: Zenodo
Year: 2014
Subjects: video lectures, IUCAA, Astronomy

description: IUCAA is the one among the best astrophysics and astronomy research institution in India which has collaborative research work with all over the world, while doing research and reviews it is found that the research beginners have difficulties to solve their quarries. The research beginners   while attending lectures, seminars, workshops and conferences still their interaction with the resource persons are minimal. In the  Current scenario  Technology  the  especially internet use brings the information to the step doors, as per statistical reviews India stands third position in the world for internet users. Keeping these view in the mind IUCAA like to help the researchers.

             IUCAA decides to record some important lectures, seminars, workshops and conferences. Recorded videos are converted in smaller size file with original quality of audio/video. These files are stored in NAS server. This service was started at IUCAA from 2010 onwards. These services are extensively used by our IUCAA researchers as well IUCAA visitors and all around world.
A Competence Matrix for Data Curation
Creators: name: Behrens, Kathrin
name: Kvetnaya, Tatiana
Publisher: name: Zenodo
Year: 2023

description: In recent years, the topic of research data management (RDM) has increasingly become one of the focal points of competence development for researchers. Thus, there are now a variety of training and education opportunities that are designed to enable and advance FAIR data management of research data. Due to the origins of primary research data, the majority of measures focus on enabling re-searchers to handle research data appropriately in the first place.

 So far, however, little attention has been paid to those who deal with data curation in research data centers on a daily basis and thus make an essential contribution to enabling a sustainably FAIR handling of research data. For this reason, our working group from KonsortSWD (“Consortium for the Social, Behavioural, Educational and Economic Sciences” by the National Research Data Infrastructure Germa-ny) is concerned with the dedicated competence development in the area of curation-specific RDM of employees in research data centers. For this purpose, we are creating a platform that will provide both an information portal and a training center with RDM topics for data curation.

 These services will be based on a competence matrix for data curation that we have designed and along which our services will be structured. The systematic inclusion of such a competence matrix of-fers various advantages: for example, the offers from the training center can be assigned very specifi-cally to individual competence areas. Additionally, learning objectives can be formulated and subse-quently evaluated more easily.

 The core of the presentation will be the introduction of the competence matrix as well as its ad-vantages related to the development of curation-focused RDM offerings. It will be shown that we can use the matrix to fill a gap in competency development for FAIR, sustainable and effective RDM in the field of data curation.
R. Koselleck, L'expérience de l'histoire. Edité et préface par M. Werner. Traduit de l'allemand par A. Escudier avec la collaboration de D. Meur, M.-C. Hoock et J. Hoock, 1997
Creators: name: Amalvi, C.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 2 (1999)
Compact inductor-capacitor resonators at sub-gigahertz frequencies
Creators: name: Chen, Qi-Ming
name: Singh, Priyank
name: Duda, Rostislav
name: Catto, Giacomo
name: Keränen, Aarne
name: Alizadeh, Arman
name: Mörstedt, Timm
name: Sah, Aashish
name: Gunyhó, András
name: Liu, Wei
name: Möttönen, Mikko
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Compact inductor-capacitor (LC) resonators, in contrast to coplanar waveguide (CPW) resonators, have a simple lumped-element circuit representation but usually call for sophisticated finite-element method (FEM) simulations for an accurate modelling. Here we present an simple analytical model for a family of coplanar LC resonators where the electrical properties are directly obtained from the circuit geometry with a satisfying accuracy. Our experimental results on $10$ high-internal-quality-factor resonators ($Q_{\rm i}\gtrsim 2\times 10^{5}$), with frequency ranging roughly from $300\,{\rm MHz}$ to $1\,{\rm GHz}$, show an excellent consistency with both the derived analytical model and detailed FEM simulations. These results showcase the ability to design sub-gigahertz resonators with less than $2\%$ deviation in the resonance frequency, which has immediate applications, for example, in the implementation of ultrasensitive cryogenic detectors. The achieved compact resonator size of the order of a square millimeter indicates a feasible way to integrate hundreds of microwave resonators on a single chip for realizing photonic lattices.
Cramer-Rao-Induced Bounds for CANDECOMP/PARAFAC tensor decomposition
Creators: name: Tichavsky, Petr
name: Phan, Anh Huy
name: Koldovsky, Zbynek
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Statistics (stat.OT)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper presents a Cramer-Rao lower bound (CRLB) on the variance of unbiased estimates of factor matrices in Canonical Polyadic (CP) or CANDECOMP/PARAFAC (CP) decompositions of a tensor from noisy observations, (i.e., the tensor plus a random Gaussian i.i.d. tensor). A novel expression is derived for a bound on the mean square angular error of factors along a selected dimension of a tensor of an arbitrary dimension. The expression needs less operations for computing the bound, O(NR^6), than the best existing state-of-the art algorithm, O(N^3R^6) operations, where N and R are the tensor order and the tensor rank. Insightful expressions are derived for tensors of rank 1 and rank 2 of arbitrary dimension and for tensors of arbitrary dimension and rank, where two factor matrices have orthogonal columns. The results can be used as a gauge of performance of different approximate CP decomposition algorithms, prediction of their accuracy, and for checking stability of a given decomposition of a tensor (condition whether the CRLB is finite or not). A novel expression is derived for a Hessian matrix needed in popular damped Gauss-Newton method for solving the CP decomposition of tensors with missing elements. Beside computing the CRLB for these tensors the expression may serve for design of damped Gauss-Newton algorithm for the decomposition.
description: revised version with one new theorem and one new section
Supernova Neutrino Light Curves and Spectra for Various Progenitor Stars: From Core Collapse to Proto-neutron Star Cooling
Creators: name: Nakazato, Ken'ichiro
name: Sumiyoshi, Kohsuke
name: Suzuki, Hideyuki
name: Totani, Tomonori
name: Umeda, Hideyuki
name: Yamada, Shoichi
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new series of supernova neutrino light curves and spectra calculated by numerical simulations for a variety of progenitor stellar masses (13-50Msolar) and metallicities (Z = 0.02 and 0.004), which would be useful for a broad range of supernova neutrino studies, e.g., simulations of future neutrino burst detection by underground detectors, or theoretical predictions for the relic supernova neutrino background. To follow the evolution from the onset of collapse to 20 s after the core bounce, we combine the results of neutrino-radiation hydrodynamic simulations for the early phase and quasi-static evolutionary calculations of neutrino diffusion for the late phase, with different values of shock revival time as a parameter that should depend on the still unknown explosion mechanism. We here describe the calculation methods and basic results including the dependence on progenitor models and the shock revival time. The neutrino data are publicly available electronically.
description: 17 emulateapj pages, 20 figures, accepted for publication in ApJS. The supernova neutrino data computed in this study are available at http://asphwww.ph.noda.tus.ac.jp/snn/
Cramér-Rao bounds for synchronization of rotations
Creators: name: Boumal, Nicolas
name: Singer, Amit
name: Absil, P. -A.
name: Blondel, Vincent D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 62F99, 94C15, 22C05, 05C12

description: Synchronization of rotations is the problem of estimating a set of rotations R_i in SO(n), i = 1, ..., N, based on noisy measurements of relative rotations R_i R_j^T. This fundamental problem has found many recent applications, most importantly in structural biology. We provide a framework to study synchronization as estimation on Riemannian manifolds for arbitrary n under a large family of noise models. The noise models we address encompass zero-mean isotropic noise, and we develop tools for Gaussian-like as well as heavy-tail types of noise in particular. As a main contribution, we derive the Cramér-Rao bounds of synchronization, that is, lower-bounds on the variance of unbiased estimators. We find that these bounds are structured by the pseudoinverse of the measurement graph Laplacian, where edge weights are proportional to measurement quality. We leverage this to provide interpretation in terms of random walks and visualization tools for these bounds in both the anchored and anchor-free scenarios. Similar bounds previously established were limited to rotations in the plane and Gaussian-like noise.
H.-J. Lüsebrink, R. Reichardt, »Kauft schöne Bilder, Kupferstiche ...«. Illustrierte Flugblätter und französisch-deutscher Kulturtransfer 1600–1830, 1996
Creators: name: Genton, F.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 2 (1999)
A 40 Myr Old Gaseous Circumstellar Disk at 49 Ceti: Massive CO-Rich Comet Clouds at Young A-Type Stars
Creators: name: Zuckerman, B.
name: Song, Inseok
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The gaseous molecular disk that orbits the main sequence A-type star 49 Ceti has been known since 1995, but the stellar age and the origin of the observed carbon monoxide molecules have been unknown. We now identify 49 Ceti as a member of the 40 Myr old Argus Association and present a colliding comet model to explain the high CO concentrations seen at 49 Ceti and the 30 Myr old A-type star HD 21997. The model suggests that massive -- 400 Earth mass -- analogs of the Sun's Kuiper Belt are in orbit about some A-type stars, that these large masses are composed primarily of comet-like objects, and that these objects are rich in CO and perhaps also CO2. We identify additional early-type members of the Argus Association and the Tucana/Horologium and Columba Associations; some of these stars display excess mid-infrared emission as measured with the Widefield Infrared Survey Explorer (WISE).
description: Accepted to ApJ
Nonlinear chiral kinetic theory
Creators: name: Mameda, Kazuya
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: From quantum field theory, we derive the chiral kinetic theory involving nonlinear quantum corrections coupled with spacetime-dependent electromagnetic fields and fluid velocity gradients. An equilibrium Wigner function determined by the kinetic equation verifies the nondissipativeness of the charge induced by the magneto-vortical coupling. We reveal that this nonlinear chiral kinetic theory is consistent with the one-loop Euler--Heisenberg effective theory, indicating an indirect evidence of the trace anomaly in the kinetic theory. We also argue a potential issue on the regularization, and demonstrate the availability of the point-splitting regularization in the nonlinear chiral kinetic theory.
description: 33 pages
CFD analysis of electroviscous effects in pressure-driven flow of electrolyte liquid through an asymmetrically charged non-uniform microfluidic device
Creators: name: Dhakar, Jitendra
name: Bharti, Ram Prakash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The electroviscous effects in the pressure-driven flow of electrolyte liquid through an asymmetrically charged contraction-expansion (4:1:4) slit microfluidic device have been investigated numerically. The mathematical model (i.e., Poisson's, Navier-Stokes, and Nernst-Planck equations) is solved using the finite element method to obtain the electrical potential, velocity, pressure, ion concentration fields, excess charge, an induced electric field strength for the following ranges of parameters: Reynolds number (${Re=0.01}$), Schmidt number (${\mathit{Sc}=1000}$), inverse Debye length (${2\le K\le 20}$), top wall surface charge density (${4\le S_t\le 16}$), surface charge ratio (${0\le S_r\le 2}$) and contraction ratio (${d_{\text{c}}=0.25}$). Results show that the charge asymmetry at the different walls of the microfluidic device plays a significant role in the induced electric field development and microfluidic hydrodynamics. The total potential (${|ΔU|}$) and pressure drop (${|ΔP|}$) maximally increase by 197.45\% and 25.46\%, respectively, with asymmetry of the charge. {The electroviscous correction factor (ratio of apparent to physical viscosity) maximally increases by 20.85\% (at ${K=2}$, ${S_t=16}$ for ${0\le S_r\le 2}$), 25.46\% (at ${S_t=16}$, ${S_r=2}$ for ${2\le K\le 20}$), and 39.13\% (at ${K=2}$, ${S_r=2}$ for ${0\le S_t\le16}$).} Further, a simpler analytical model is developed to predict the pressure drop in electroviscous flow considering asymmetrically charged surface, based on the Poiseuille flow in the individual uniform sections and pressure losses due to orifice, estimates the pressure drop 1--2\% within the numerical results. The robustness of this model enables the use of present numerical results for design aspects in microfluidic applications.
description: 44 pages, 15 figures
Roses in the Nonperturbative Current Response of Artificial Crystals
Creators: name: De Beule, Christophe
name: Phong, Vo Tien
name: Mele, E. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In two-dimensional artificial crystals with large real-space periodicity, the nonlinear current response to a large applied electric field can feature a strong angular dependence, which encodes information about the band dispersion and Berry curvature of isolated electronic Bloch minibands. Within the relaxation-time approximation, we obtain analytic expressions up to infinite order in the driving field for the current in a band-projected theory with time-reversal and trigonal symmetry. For a fixed field strength, the dependence of the current on the direction of the applied field is given by rose curves whose petal structure is symmetry constrained and is obtained from an expansion in real-space translation vectors. We illustrate our theory with calculations on periodically-buckled graphene and twisted double bilayer graphene, wherein the discussed physics can be accessed at experimentally-relevant field strengths.
description: 8 + 22 pages, 4 + 12 figures. Published version
3D-PDR: A new three-dimensional astrochemistry code for treating Photodissociation Regions
Creators: name: Bisbas, T. G.
name: Bell, T. A.
name: Viti, S.
name: Yates, J.
name: Barlow, M. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Photodissociation regions (PDRs) define the transition zone between an ionized and a dark molecular region. They consist of neutral gas which interacts with far-ultraviolet radiation and are characterized by strong infrared line emission. Various numerical codes treating one-dimensional PDRs have been developed in the past, simulating the complexity of chemical reactions occurring and providing a better understanding of the structure of a PDR. In this paper we present the three-dimensional code, 3D-PDR, which can treat PDRs of arbitrary density distribution. The code solves the chemistry and the thermal balance self-consistently within a given three-dimensional cloud. It calculates the total heating and cooling functions at any point in a given PDR by adopting an escape probability method. It uses a HEALPix-based ray-tracing scheme to evaluate the attenuation of the far-ultraviolet radiation in the PDR and the propagation of the far-infrared/submm line emission out of the PDR. We present benchmarking results and apply 3D-PDR to i) a uniform-density spherical cloud interacting with a plane-parallel external radiation field, ii) a uniform-density spherical cloud interacting with a two-component external radiation field, and iii) a cometary globule interacting with a plane-parallel external radiation field. We find that the code is able to reproduce the benchmarking results of various other one-dimensional numerical codes treating PDRs. We also find that the accurate treatment of the radiation field in the fully three-dimensional treatment of PDRs can in some cases leads to different results when compared to a standard one-dimensional treatment.
description: 19 pages, 11 figures, accepted for publication in MNRAS
Post-quantum nonlocality in the minimal triangle scenario
Creators: name: Pozas-Kerstjens, Alejandro
name: Girardin, Antoine
name: Kriváchy, Tamás
name: Tavakoli, Armin
name: Gisin, Nicolas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate network nonlocality in the triangle scenario when all three parties have no input and binary outputs. Through an explicit example, we prove that this minimal scenario supports nonlocal correlations compatible with no-signaling and independence of the three sources, but not with realisations based on independent quantum or classical sources. This nonlocality is robust to noise. Moreover, we identify the equivalent to a Popescu-Rohrlich box in the minimal triangle scenario.
description: 7 pages, 5+1 figures, RevTeX 4.2. The computational appendix is available at https://www.github.com/apozas/minimal-triangle V3: Updated to match published version
A. H. Bredero, Christenheit und Christentum im Mittelalter. Über das Verhältnis von Religion, Kirche und Gesellschaft. Aus dem Niederländischen von A. Pistorius, 1998
Creators: name: V. Padberg, L. E.
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 27 Nr. 1 (2000)
A Possible Higher Order Correction to the chiral Vortical Conductivity in a Gauge Field Plasma
Creators: name: Hou, Defu
name: Liu, Hui
name: Ren, Hai-cang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The two loop contributions to the chiral vortical conductivity are considered. The Kubo formula together with the anomalous Ward identity of the axial vector current suggest that there may be a nonzero correction to the coefficient of the $T^2$ term of the conductivity.
description: 6 pages, 2 figues, in latex, minor changes with typos fixed and a few references added
Revisit the entanglement entropy with gravitational anomaly
Creators: name: He, Peng-Zhang
name: Zhang, Hai-Qing
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study the entanglement entropy in the CFT$_2$, whose gravity dual is AdS$_3$ spacetime with a Chern-Simons term. Using the generalized Rindler method, we obtain the Rindler transformation in the two-dimensional planar CFT and compute the entanglement entropy of the CFT with gravitational anomalies. The conditions under which the entanglement entropy may have anomalous contributions is also discussed. In addition, we present a relatively general form of the Rindler AdS metric and compute its thermal entropy, which agrees with the entanglement entropy in the field theory. Moreover, we utilize the conformal transformation, which maps a cylinder to a plane, to compute the entanglement entropy of the CFT residing on a cylinder, as well as the entanglement entropy of the CFT at finite temperature on a plane. The corresponding contribution of the Chern-Simons term in gravity to the black hole thermal entropy is also obtained from this approach. These results are important for further understandings of the two-dimensional CFT with gravitational anomalies.
description: 25 pages, 5 figures
A First Top Partner Hunter's Guide
Creators: name: De Simone, Andrea
name: Matsedonskyi, Oleksii
name: Rattazzi, Riccardo
name: Wulzer, Andrea
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a systematic effective lagrangian description of the phenomenology of the lightest top-partners in composite Higgs models. Our construction is based on symmetry, on selection rules and on plausible dynamical assumptions. The structure of the resulting simplified models depends on the quantum numbers of the lightest top partner and of the operators involved in the generation of the top Yukawa. In all cases the phenomenology is conveniently described by a small number of parameters, and the results of experimental searches are readily interpreted as a test of naturalness. We recast presently available experimental bounds on heavy fermions into bounds on top partners: LHC has already stepped well inside the natural region of parameter space.
description: 44 pages, 12 figures. Minor corrections to match published version
Mass media and its impact on opinion dynamics of the nonlinear $q$-voter model
Creators: name: Muslim, Roni
name: NQZ, Rinto Anugraha
name: Khalif, Muhammad Ardhi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: With the success of general conceptual frameworks of statistical physics, many scholars have tried to apply these concepts to other interdisciplinary fields, such as socio-politics, economics, biology, medicine, and many more. In this work, we study the effect of mass media on opinion evolution based on the nonlinear $q$-voter by means with probability $p$ a voter adopts the mass media opinion whenever a $q$-sized agent in the population is not in unanimous agreement. We perform analytical and numerical calculations for some quantities of macroscopic parameters of the model such as order parameter (representing an average of public opinion), consensus (relaxation) time, and exit probability, and obtain the agreement results. We find the power-law relations for some quantities of the model. (1) The probability threshold $p_t$, i.e a probability that makes the system reaches a homogeneous state, follows the power-law relation $p_t \sim q^γ$ with the $q$-sized agent, where $γ= -1.00 \pm 0.01$ is the best fitting parameter. The probability threshold $p_t$ also eliminates the {coexistence two ordered states} of the model. (2) The relaxation time (the time needed by the system to reach consensus) $τ$ with the population size $N$ is obtained in the form of $τ\sim N^δ$, where $δ$ depends on the probability $p$ and $q$-sized agent. We also approximate the {separator} point {$r_s$} and the system's scaling parameters by employing the standard finite-size scaling relation.
description: 16 pages and 12 figures
Fate of 2D Kinetic Ising Ferromagnets and Critical Percolation Crossing Probabilities
Creators: name: Olejarz, J.
name: Krapivsky, P. L.
name: Redner, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present evidence for a deep connection between the zero-temperature coarsening of the two-dimensional kinetic Ising model (KIM) and critical continuum percolation. In addition to reaching the ground state, the KIM can also fall into a variety of topologically distinct metastable stripe states. The probability to reach a stripe state that winds a times horizontally and b times vertically on a square lattice with periodic boundary conditions equals the corresponding exactly-solved critical percolation crossing probability P_{a,b} for a spanning path with winding numbers a and b.
description: 4 pages, 4 figure, 2-column revtex4 format. Revision contains material about the TDGL and is nearly identical to the final published version
Gauge Threshold Corrections for N = 2 Heterotic Local Models with Flux, and Mock Modular Forms
Creators: name: Carlevaro, Luca
name: Israel, Dan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We determine threshold corrections to the gauge couplings in local models of N=2 smooth heterotic compactifications with torsion, given by the direct product of a warped Eguchi-Hanson space and a two-torus, together with a line bundle. Using the worldsheet CFT description previously found and by suitably regularising the infinite target space volume divergence, we show that threshold corrections to the various gauge factors are governed by the non-holomorphic completion of the Appell-Lerch sum. While its holomorphic Mock-modular component captures the contribution of states that localise on the blown-up two-cycle, the non-holomorphic correction originates from non-localised bulk states. We infer from this analysis universality properties for N=2 heterotic local models with flux, based on target space modular invariance and the presence of such non-localised states. We finally determine the explicit dependence of these one-loop gauge threshold corrections on the moduli of the two-torus, and by S-duality we extract the corresponding string-loop and E1-instanton corrections to the Kaehler potential and gauge kinetic functions of the dual type I model. In both cases, the presence of non-localised bulk states brings about novel perturbative and non-perturbative corrections, some features of which can be interpreted in the light of analogous corrections to the effective theory in compact models.
description: 83 pages including appendices; v2: references added, typos corrected, in table 1 on p.13 state degeneracy for operators with internal left-moving SU(2) taken into account in determining hypermultiplet multiplicities
Field induced phase transitions in the helimagnet Ba2CuGe2O7
Creators: name: Chovan, J.
name: Marder, M.
name: Papanicolaou, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a theoretical study of the two-dimensional spiral antiferromagnet Ba2CuGe2O7 in the presence of an external magnetic field. We employ a suitable nonlinear sigma model to calculate the T=0 phase diagram and the associated low-energy spin dynamics for arbitrary canted fields, in general agreement with experiment. In particular, when the field is applied parallel to the c axis, a previously anticipated Dzyaloshinskii-type incommensurate-to-commensurate phase transition is actually mediated by an intermediate phase, in agreement with our earlier theoretical prediction confirmed by the recent observation of the so-called double-k structure. The sudden pi/2 rotations of the magnetic structures observed in experiment are accounted for by a weakly broken U(1) symmetry of our model. Finally, our analysis suggests a nonzero weak-ferromagnetic component in the underlying Dzyaloshinskii-Moriya anisotropy, which is important for quantitative agreement with experiment.
description: 17 pages, 14 figures. Corrected typos in the abstract
Multi-messenger observations of core-collapse supernovae: Exploiting the standing accretion shock instability
Creators: name: Drago, Marco
name: Andresen, Haakon
name: Di Palma, Irene
name: Tamborra, Irene
name: Torres-Forné, Alejandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The gravitational wave (GW) and neutrino signals from core-collapse supernovae (CCSNe) are expected to carry pronounced imprints of the standing accretion shock instability (SASI). We investigate whether the correlation between the SASI signatures in the GW and neutrino signals could be exploited to enhance the detection efficiency of GWs. We rely on a benchmark full-scale three-dimensional CCSN simulation with zero-age main sequence mass of $27\ M_\odot$. Two search strategies are explored: 1.~the inference of the SASI frequency range and/or time window from the neutrino event rate detectable at the IceCube Neutrino Observatory; 2.~the use of the neutrino event rate to build a matched filter template. We find that incorporating information from the SASI modulations of the IceCube neutrino event rate can increase the detection efficiency compared to standard GW excess energy searches up to $30\%$ for nearby CCSNe. However, we do not find significant improvements in the overall GW detection efficiency for CCSNe more distant than $1.5$~kpc. We demonstrate that the matched filter approach performs better than the unmodeled search method, which relies on a frequency bandpass inferred from the neutrino signal. The improved detection efficiency provided by our matched filter method calls for additional work to outline the best strategy for the first GW detection from CCSNe.
Fecal sludge sensors
Creators: name: Danae  Black
name: Burke, Barbara
name: Isquith-Dicker, Leah
name: Slyker, Jennifer
name: START Center
Publisher: name: Gates Open Research
Year: 2023

description: The START team conducted a landscape analysis of technologies to be utilized to count/track trucks transporting fecal sludge, measure volume of fecal sludge, and measure solid composition of fecal sludge in low and middle-income countries.
Quantum, classical symmetries and action-angle variables by factorization of superintegrable systems
Creators: name: Kuru, Şengül
name: Negro, Javier
name: Salamanca, Sergio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The purpose of this work is to present a method based on the factorizations used in one dimensional quantum mechanics in order to find the symmetries of quantum and classical superintegrable systems in higher dimensions. We apply this procedure to the harmonic oscillator and Kepler-Coulomb systems to show the differences with other more standard approaches. We have described in detail the basic ingredients to make explicit the parallelism of classical and quantum treatments. One of the most interesting results is the finding of action-angle variables as a natural component of the classical sysmmetries within this formalism.
description: 21 pages, 3 figures
Pressure Study of BiS2-Based Superconductors Bi4O4S3 and La(O,F)BiS2
Creators: name: Kotegawa, Hisashi
name: Tomita, Yusuke
name: Tou, Hideki
name: Izawa, Hiroki
name: Mizuguchi, Yoshikazu
name: Miura, Osuke
name: Demura, Satoshi
name: Deguchi, Keita
name: Takano, Yoshihiko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the electrical resistivity measurements under pressure for the recently discovered BiS2-based layered superconductors Bi4O4S3 and La(O,F)BiS2. In Bi4O4S3, the transition temperature Tc decreases monotonically without a distinct change in the metallic behavior in the normal state. In La(O,F)BiS2, on the other hand, Tc initially increases with increasing pressure and then decreases above ? 1 GPa. The semiconducting behavior in the normal state is suppressed markedly and monotonically, whereas the evolution of Tc is nonlinear. The strong suppression of the semiconducting behavior without doping in La(O,F)BiS2 suggests that the Fermi surface is located in the vicinity of some instability. In the present study, we elucidate that the superconductivity in the BiS2 layer favors the Fermi surface at the boundary between the semiconducting and metallic behaviors.
description: 4 pages, 6 figures, Accepted for publication in J. Phys. Soc. Jpn
Childhood development measures
Creators: name: Kwist, Andrew
name: Danae Black
name: Isquith-Dicker, Leah
name: Slyker, Jennifer
name: Hawes, Stephen
name: START Center
Publisher: name: Gates Open Research
Year: 2023

description: The START team conducted a systematic review to identify early childhood development assessment tools that are associated with long-term outcomes of educational attainment, academic achievement, and socioeconomic measures.
Nonviolation of Bell's Inequality in Translation Invariant Systems
Creators: name: de Oliveira, Thiago R.
name: Saguia, A.
name: Sarandy, M. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The nature of quantum correlations in strongly correlated systems has been a subject of intense research. In particular, it has been realized that entanglement and quantum discord are present at quantum phase transitions and able to characterize it. Surprisingly, it has been shown for a number of different systems that qubit pairwise states, even when highly entangled, do not violate Bell's inequalities, being in this sense local. Here we show that such a local character of quantum correlations is in fact general for translation invariant systems and has its origins in the monogamy trade-off obeyed by tripartite Bell correlations. We illustrate this result in a quantum spin chain with a soft breaking of translation symmetry. In addition, we extend the monogamy inequality to the $N$-qubit scenario, showing that the bound increases with $N$ and providing examples of its saturation through uniformly generated random pure states.
description: Published erratum added at the end