cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Increasing Understanding During Collaboration Through Advanced Representations
Creators: name: Lottaz, Claudio
name: Stouffs, Rudi
name: Smith, Ian
Publisher: name: Universität Regensburg
Year: 2000
Subjects: subject: collaboration, negotiation, electronic document management, information architecture, information visualization, feedback
subject: 610 Medizin

description: this paper is to present an environment which has been specifically designed for multiple ways to represent and manipulate information. Several representations, when coupled with appropriate visualization techniques, lead to opportunities for increasing understanding of AEC project characteristics. More specifically, when a numerical constraint solver (SpaceSolver) is integrated within a document-centric collaboration environment (ICC), synergies between information exchange and solution space exploration contribute very positively to the quality of projects. In particular, the ICC environment provides a framework for representing and visualizing information structures that are created during collaboration. Conceptually, an information architecture and visualization techniques to support the virtual AEC enterprise are emphasized. A plug-in architecture allows for the addition of processspecific functionality. The constraint solver SpaceSolver presents a complementary collaborative approach, with strict semantics to support decision making and conflict management. The use of solution spaces during collaborative negotiation avoids premature decisions in the design process, allows detection of conflicting project requirements at early stages of the project, and increases the designers' understanding of hidden relations between design parameters. Together, the ICC environment supports the management of an information space that, when linked to a constraint satisfaction problem, can explain important restrictions and decisions for an effective negotiation. The combination of a flexible framework with more rigid modules, such as constraint solvers, provides a useful compromise and, thus, comprehensive support for a range of AEC projects. Two recently completed construction pr..
การวิเคราะห์สมการถดถอยพหุคูณแบบลำดับขั้นในการทดสอบความสามารถในการนำเสนอสารสนเทศการสกัดข้อมูลรายงานอุบัติเหตุทางถนน
Creators: name: จักรินทร์ สันติรัตนภักดี
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2022
Subjects: Usability Testing
Data Extraction
Road Traffic Accident
Data Visualization

description: KMUTT Research and Development Journal, 45, 3, 353-376
Point Production of a Nonrelativistic Unparticle Recoiling Against a Particle
Creators: name: Braaten, Eric
name: Hammer, Hans-Werner
Publisher: name: arXiv
Year: 2023
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: A nonrelativistic unparticle can be defined as an excitation created by an operator with a definite scaling dimension in a nonrelativistic field theory with an approximate conformal symmetry. The point production rate of an unparticle has power-law dependence on its total energy with an exponent determined by its scaling dimension. We use the exact result for the 3-point function of primary operators in a nonrelativistic conformal field theory to derive the contribution to the point production rate of the unparticle from its decay into another unparticle recoiling against a particle. In the case where the conformal symmetry is broken by a large positive scattering length, we deduce the exponent of the energy in the point production rate of the loosely bound two-particle state recoiling against a particle with large relative momentum.
description: 17 pages, 7 figures. arXiv admin note: text overlap with arXiv:2107.02831
Schule, Ganztag inklusiv?
Creators: name: Schurig, Michael
name: Gebhardt, Markus
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: Ganztag, Inklusion, Schulentwicklung, Rahmenkonzept
subject: 370 Erziehung, Schul- und Bildungswesen

description: Neben der Umsetzung der Inklusion ist der Ganztagsschulausbau eine zweite große Schulreform, die innerhalb der vergangenen Jahre in Deutschland umgesetzt wurde. Es wird ein Überblick über Ziele, Organisationsformen, Status, Analysemodelle und Forschungsergebnisse zur Umsetzung des Ganztags gegeben. Der Ausbau ist in der Fläche bereits vorangeschritten, eine Breitenwirkung kann aber nicht verzeichnet werden. Erfolge können vor allem bei gezielten Interventionen festgestellt werden. Es wird argumentiert, dass hohe Schnittmengen bei den Zielen der Ganztagsschule und der Inklusion vorliegen, die zu wenig berücksichtigt wurden. Eine Integration vorliegender pädagogischer Rahmenkonzeptionen und Qualitätsmerkmale der inklusiven Schule kann bei der konkreten Umsetzung des Ganztags helfen.
Un Sistema Flexible para el Procesamiento de Telemetría en Tiempo Real
Creators: name: Lopez, David
name: La Sala, Gustavo
Publisher: name: figshare
Year: 2023
Subjects: Aerospace engineering not elsewhere classified
Software engineering not elsewhere classified

description: En este trabajo se presenta un sistema para el procesamiento TM en tiempo real altamente configurable a través de una base de datos (DB) la cual es un archivo de configuración de texto plano. Dicha configuración permite definir las reglas para extraer las variables de TM a partir del bit pattern recibido (formatos y frames de TM) así como el procesamiento a aplicar a cada una de las variables de TM. Se puede elegir aplicar funciones de calibración y formateo a partir un set predefinido provisto por el sistema, como así también definir algoritmos personalizados especificados en la DB mediante un lenguaje de programación propio específico del dominio. Estos algoritmos se pueden reutilizar para otras variables dentro de la DB. El sistema propuesto se utilizó y utiliza con éxito durante el lanzamiento y la operación geoestacionaria de los satélites de comunicaciones ARSAT-1 y ARSAT-2.
Higher moments of primordial non-Gaussianity and N-body simulations
Creators: name: Adhikari, Saroj
name: Shandera, Sarah
name: Dalal, Neal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform cosmological N-body simulations with non-Gaussian initial conditions generated from two independent fields. The dominant contribution to the perturbations comes from a purely Gaussian field, but we allow the second field to have local non-Gaussianity that need not be weak. This scenario allows us to adjust the relative importance of non-Gaussian contributions beyond the skewness, producing a scaling of the higher moments different from (and stronger than) the scaling in the usual single field local ansatz. We compare semi-analytic prescriptions for the non-Gaussian mass function, large scale halo bias, and stochastic bias against the simulation results. We discuss applications of this work to large scale structure measurements that can test a wider range of models for the primordial fluctuations than is usually explored.
description: 35 pages, 14 figures, minor corrections and clarifications added to the text to match the JCAP published version
Quantum particle in a parabolic lattice in the presence of a gauge field
Creators: name: Kolovsky, Andrey R.
name: Grusdt, Fabian
name: Fleischhauer, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We analyze the eigenstates of a two-dimensional lattice with additional harmonic confinement in the presence of an artificial magnetic field. While the softness of the confinement makes a distinction between bulk and edge states difficult, the interplay of harmonic potential and lattice leads to a different classification of states in three energy regions: In the low-energy regime, where lattice effects are small, all states are transporting topologically non-trivial states. For large energies above a certain critical value, the periodic lattice causes localization of all states through a mechanism similar to Wannier-Stark localization. In the intermediate energy regime transporting, topologically non- trivial states coexist with topologically trivial counter-transporting chaotic states. The character of the eigenstates, in particular their transport properties are studied numerically and are explained using a semiclassical analysis.
description: 10 pages, 16 figures
The CARMENES search for exoplanets around M dwarfs. A long-period planet around GJ 1151 measured with CARMENES and HARPS-N data
Creators: name: Blanco-Pozo, J.
name: Perger, M.
name: Damasso, M.
name: Escudé, G. Anglada
name: Ribas, I.
name: Baroch, D.
name: Caballero, J. A.
name: Cifuentes, C.
name: Jeffers, S. V.
name: Lafarga, M.
name: Kaminski, A.
name: Kaur, S.
name: Nagel, E.
name: Perdelwitz, V.
name: Pérez-Torres, M.
name: Sozzetti, A.
name: Viganò, D.
name: Amado, P. J.
name: Andreuzzi, G.
name: Brown, E. L.
name: Del Sordo, F.
name: Dreizler, S.
name: Galadí-Enríquez, D.
name: Hatzes, A. P.
name: Kürster, M.
name: Lanza, A. F.
name: Melis, A.
name: Molinari, E.
name: Montes, D.
name: Murgia, M.
name: Pallé, E.
name: Peña-Moñino, L.
name: Perrodin, D.
name: Pilia, M.
name: Poretti, E.
name: Quirrenbach, A.
name: Reiners, A.
name: Schweitzer, A.
name: Osorio, M. R. Zapatero
name: Zechmeister, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Detecting a planetary companion in a short-period orbit through radio emission from the interaction with its host star is a new prospect in exoplanet science. Recently, a tantalising signal was found close to the low-mass stellar system GJ 1151 using LOFAR observations. We studied spectroscopic time-series data of GJ 1151 in order to search for planetary companions, investigate possible signatures of stellar magnetic activity, and to find possible explanations for the radio signal. We used the combined radial velocities measured from spectra acquired with the CARMENES, HARPS-N, and HPF instruments, extracted activity indices from those spectra in order to mitigate the impact of stellar magnetic activity on the data, and performed a detailed analysis of Gaia astrometry and all available photometric time series coming from the MEarth and ASAS-SN surveys. We found a M$>$10.6 M$_{\oplus}$ companion to GJ 1151 in a 390d orbit at a separation of 0.57 au. Evidence for a second modulation is also present; this could be due to long-term magnetic variability or a second (substellar) companion. The star shows episodes of elevated magnetic activity, one of which could be linked to the observed LOFAR radio emission. We show that it is highly unlikely that the detected GJ 1151 b, or any additional outer companion is the source of the detected signal. We cannot firmly rule out the suggested explanation of an undetected short-period planet that could be related to the radio emission, as we establish an upper limit of 1.2 M$_{\oplus}$ for the minimum mass.
description: 18 pages, 11 figures. Accepted version, A&A (2023)
การออกแบบ สร้าง และทดสอบสมรรถนะเครื่องล้างทำความสะอาดสาหร่าย
Creators: name: สิทธิบูรณ์ ศิริพรอัครชัย
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2022
Subjects: Water Bubble Machine
Washing by Injection
Settling

description: KMUTT Research and Development Journal, 45, 3, 377-392
Analytic Representations of Bath Correlation Functions for Ohmic and Superohmic Spectral Densities Using Simple Poles
Creators: name: Ritschel, Gerhard
name: Eisfeld, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a scheme to express a bath correlation function (BCF) corresponding to a given spectral density (SD) as a sum of damped harmonic oscillations. Such a representation is needed, for example, in many open quantum system approaches. To this end we introduce a class of fit functions that enables us to model ohmic as well as superohmic behavior. We show that these functions allow for an analytic calculation of the BCF using pole expansions of the temperature dependent hyperbolic cotangent. We demonstrate how to use these functions to fit spectral densities exemplarily for cases encountered in the description of photosynthetic light harvesting complexes. Finally, we compare absorption spectra obtained for different fits with exact spectra and show that it is crucial to take properly into account the behavior at small frequencies when fitting a given SD.
description: 16 pages, 9 figures
New members of the Lupus I cloud based on Gaia astrometry Physical and accretion properties from X-Shooter spectra
Creators: name: Majidi, F. Z.
name: Alcala', J. M.
name: Frasca, A.
name: Desidera, S.
name: Manara, C. F.
name: Beccari, G.
name: D'Orazi, V.
name: Bayo, A.
name: Biazzo, K.
name: Claudi, R.
name: Covino, E.
name: Mantovan, G.
name: Montalto, M.
name: Nardiello, D.
name: Piotto, G.
name: Rigliaco, E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We characterize twelve young stellar objects (YSOs) located in the Lupus I region, spatially overlapping with the Upper Centaurus Lupus (UCL) sub-stellar association. The aim of this study is to understand whether the Lupus I cloud has more members than what has been claimed so far in the literature and gain a deeper insight into the global properties of the region. We selected our targets using Gaia DR2 catalog, based on their consistent kinematic properties with the Lupus I bona fide members. In our sample of twelve YSOs observed by X-Shooter, we identified ten Lupus I members. We could not determine the membership status of two of our targets, namely Gaia DR2 6014269268967059840 and 2MASS J15361110-3444473 due to technical issues. We found out that four of our targets are accretors, among them 2MASS J15551027-3455045, with a mass of ~0.03 M_Sun, is one of the least massive accretors in the Lupus complex to date. Several of our targets (including accretors) are formed in-situ and off-cloud with respect to the main filaments of Lupus I, hence, our study may hint that there are diffused populations of M-dwarfs around Lupus I main filaments. In this context, we would like to emphasize that our kinematic analysis with Gaia catalogs played a key role in identifying the new members of the Lupus I cloud.
description: 20 pages, 15 Tables, 13 Figures, accepted for publication in A&A
ค่าแฟกเตอร์ประสิทธิผลของเถ้าปาล์มน้ำมันในคอนกรีต
Creators: name: ศตวรรษ หฤหรรษพงศ์
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2022
Subjects: Efficiency Factor
Compressive Strength
Palm Oil Fuel Ash

description: KMUTT Research and Development Journal, 45, 3, 393-410
Nonlinear Fast Magnetosonic Waves in Solar Prominence Pillars
Creators: name: Ofman, Leon
name: Kucera, Therese A.
name: DeVore, C. Richard
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the properties of nonlinear fast magnetosonic (NFM) waves in a solar prominence, motivated by recent high-resolution and high-cadence Hinode/SOT observations of small-scale oscillations in a prominence pillar. As an example, we analyze the details of the 2012 February 14 Hinode/SOT observations of quasi-periodic propagating features consistent with NFM waves, imaged in emission in Ca~II and in the far blue wing of H_alpha. We perform wavelet analysis and find oscillations in the 1-3 min period range. Guided by these observations, we model the NFM waves with a three-dimensional magnetohydrodynamics (3D MHD) model, extending previous 2.5D MHD studies. The new model includes the structure of the high-density, low-temperature material of the prominence pillar embedded in the hot corona, in both potential and non-force-free sheared magnetic field configurations. The nonlinear model demonstrates the effects of mode coupling and the propagating density compressions associated with linear and NFM waves. The guided fast magnetosonic waves, together with density compressions and currents, are reproduced in the 3D pillar structure. We demonstrate or the first time the dynamic effects of the Lorentz force due to the magnetic shear in the non-force-free field on the pillar structure and on the propagation of the waves. The insights gained from the 3D MHD modeling are useful for improving coronal seismology of prominence structures that exhibit fast MHD wave activity.
Runge-Kutta Central Discontinuous Galerkin BGK Method for the Navier-Stokes Equations
Creators: name: Ren, Tan
name: Hu, Jun
name: Xiong, Tao
name: Qiu, Jing-Mei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we propose a Runge-Kutta (RK) central discontinuous Galerkin (CDG) gas-kinetic BGK method for the Navier-Stokes equations. The proposed method is based on the CDG method defined on two sets of overlapping meshes to avoid discontinuous solutions at cell interfaces, as well as the gas-kinetic BGK model to evaluate fluxes for both convection and diffusion terms. Redundant representation of the numerical solution in the CDG method offers great convenience in the design of gas-kinetic BGK fluxes. Specifically, the evaluation of fluxes at cell interfaces of one set of computational mesh is right inside the cells of the staggered mesh, hence the corresponding particle distribution function for flux evaluation is much simpler than that in existing gas-kinetic BGK methods. As a central scheme, the proposed CDG-BGK has doubled the memory requirement as the corresponding DG scheme; on the other hand, {for the convection part,} the CFL time step constraint of the CDG method for numerical stability is relatively large compared with that for the DG method. Numerical boundary conditions have to be treated with special care. Numerical examples for 1D and 2D viscous flow simulations are presented to validate the accuracy and robustness of the proposed RK CDG-BGK method.
Un Sistema Flexible para el Procesamiento de Telemetría en Tiempo Real
Creators: name: Lopez, David
name: La Sala, Gustavo
Publisher: name: figshare
Year: 2021
Subjects: Aerospace engineering not elsewhere classified
Software engineering not elsewhere classified

description: En este trabajo se presenta un sistema para el procesamiento TM en tiempo real altamente configurable a través de una base de datos (DB) la cual es un archivo de configuración de texto plano. Dicha configuración permite definir las reglas para extraer las variables de TM a partir del bit pattern recibido (formatos y frames de TM) así como el procesamiento a aplicar a cada una de las variables de TM. Se puede elegir aplicar funciones de calibración y formateo a partir un set predefinido provisto por el sistema, como así también definir algoritmos personalizados especificados en la DB mediante un lenguaje de programación propio específico del dominio. Estos algoritmos se pueden reutilizar para otras variables dentro de la DB. El sistema propuesto se utilizó y utiliza con éxito durante el lanzamiento y la operación geoestacionaria de los satélites de comunicaciones ARSAT-1 y ARSAT-2.
Discovery of an Exceptional Optical Nebulosity in the Suspected Galactic SN Iax Remnant Pa 30 Linked to the Historical Guest Star of 1181 CE
Creators: name: Fesen, Robert A.
name: Schaefer, Bradley E.
name: Patchick, Dana
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A newly recognized young Galactic SN remnant, Pa 30 (G123.1+4.6), centered on a hot central star with a ~16,000 km/s wind velocity has recently been proposed to be the result of a double-degenerate merger leading to a SN Iax event associated with the guest star of 1181 CE. Here we present deep optical [S II] 6716,6731 images of Pa 30 which reveal an extraordinary and highly structured nebula 170" in diameter with dozens of long (5" - 20") radially aligned filaments with a convergence point near the hot central star. Optical spectra of filaments indicate a peak expansion velocity ~1100 km/s with electron densities of <100 to 700 cm^-3, and a thick shell-like structure resembling its appearance in 22 micron WISE images. No H-alpha emission was seen (I[6716/H-alpha] >5), with the only other line emission detected being faint [Ar III] 7136 suggesting a S, Ar-rich but H-poor remnant. The nebula's angular size, estimated 2.3 kpc distance, and 1100 km/s expansion velocity are consistent with an explosion date around 1181 CE. The remnant's unusual appearance may be due to the photoionization of wind-driven ejecta due to clump-wind interactions caused by the central star's high-luminosity wind.
description: 9 pages, 5 figures; revised text plus a new figure; Accepted for publication in the ApJ Letters
A költségelszámolási rendszerek tudományos vizsgálata és összefüggései a pénzügyi beszámolókkal
Creators: name: Majoros, György
Publisher: name: BI-KA LOGISZTIKA Kft.
Year: 2018

description: Logisztikai trendek és legjobb gyakorlatok (ISSN: 2416-0555), 2018. október, 4. évfolyam, 2. szám
A Happiness Economics-Based Human Development Index for Germany (1920-1960)
Creators: name: Jopp, Tobias A.
Publisher: name: Universität Regensburg
Year: 2020
Subjects: subject: Germany, freedom, weighting, happiness research, happiness economics, Human Development Index, living standard
subject: 320 Politik
subject: 330 Wirtschaft
subject: 900 Geschichte
subject: I31
subject: N34
subject: N94
subject: O11

description: The United Nations’ Human Development Index (HDI) has become an important tool for measuring and comparing living standards between countries and regions. However, the HDI has also attracted a fair share of conceptual criticism. Starting from Andrea Wagner’s historical estimations of a HDI for Germany in the interwar and early post-war period, we take up part of that criticism by implementing three essential modifications to the mode of calculation. We test how far they alter our picture of the relative living standard in the Weimar Republic, the Third Reich, and the Federal Republic of Germany. First, we replace the arithmetic mean by the geometric mean, which is said to solve the problem of perfect substitutability; second, we extend the HDI by an additional fourth dimension measuring economic and political freedom – an important, though neglected, dimension; and third, as the perhaps most crucial conceptual intervention, we develop weighting schemes for the partial indices that are theoretically backed by happiness economic research. Thus, we challenge the common, but arbitrary fundamental assumption that all partial indices receive equal weights. Our results show that the HDI for Germany reacts very sensitively to conceptual interventions, making it difficult to use it for the intertemporal and international comparison of living standards. We also find that the proposed modified HDIs allow for a re-evaluation of the living standard in interwar Germany; and in contrast to what the reference estimations on the HDI for Germany say, there is a profound discontinuity between the Third Reich and post-war Germany in terms of living standards.
An experiment in the communication of four different behavior requests between bottlenose dolphins
Creators: name: Turner, Mark R.
Publisher: name: Zenodo
Year: 2023
Subjects: bottlenose dolphin
Tursiops truncatus
dolphin communication
animal communication

description: This abstract was submitted for the 2019 World Marine Mammal Conference for a poster presentation. Although it was accepted, we were unable to attend the conference. Therefore, the abstract was not archived.
Generalization of the Time-Dependent Numerical Renormalization Group Method to Finite Temperatures and General Pulses
Creators: name: Nghiem, H.
name: Costi, T. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The time-dependent numerical renormalization group (td-NRG) [Anders et al. Phys. Rev. Lett. {\bf 95}, 196801 (2006)] offers the prospect of investigating in a non-perturbative manner the time-dependence of local observables of interacting quantum impurity models at all time scales following a quantum quench. We present a generalization of this method to arbitrary finite temperature by making use of the full density matrix [Weichselbaum et al. Phys. Rev. Lett. {\bf 99}, 076402 (2007)]. We show that all terms in the projected density matrix $ρ^{i\to f} = ρ^{++} + ρ^{--} + ρ^{+-}+ρ^{-+}$ in the time-evolution of a local observable may be evaluated in closed form, with $ρ^{+-}=ρ^{-+}=0$. The expression for $ρ^{--}$ is shown to be finite at finite temperature, becoming negligible only in the limit of vanishing temperatures. We prove that this approach recovers the short-time limit for the expectation value of a local observable exactly at arbitrary temperatures. In contrast, the corresponding long-time limit is only recovered exactly in the limit $Λ\rightarrow 1^{+}$. This limit is impractical within NRG. We suggest how to overcome this problem by noting that the long-time limit becomes increasingly more accurate on reducing the size of the quantum quench. This suggests an improved generalized td-NRG approach in which the system is time-evolved between the initial and final states via a sequence of small quantum quenches within a finite time interval instead of a single large quantum quench. The formalism for this is provided, generalizing the td-NRG to multiple quantum quenches, periodic switching, and general pulses. This formalism, like our finite temperature generalization of the single-quench case, rests only on the NRG approximation. The results are illustrated by application to the Anderson impurity model.
description: 22 pages, 13 figures
Classification of lepton mixing matrices from finite residual symmetries
Creators: name: Fonseca, Renato M.
name: Grimus, Walter
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Assuming that neutrinos are Majorana particles, we perform a complete classification of all possible mixing matrices which are fully determined by residual symmetries in the charged-lepton and neutrino mass matrices. The classification is based on the assumption that the residual symmetries originate from a finite flavour symmetry group. The mathematical tools which allow us to accomplish this classification are theorems on sums of roots of unity. We find 17 sporadic cases plus one infinite series of mixing matrices associated with three-flavour mixing, all of which have already been discussed in the literature. Only the infinite series contains mixing matrices which are compatible with the data at the 3 sigma level.
description: Correction of a wrong identification (there are consequently 17 sporadic lepton mixing cases); change in the title to include the word "finite"; newer neutrino data used; minor corrections and clarifications; version matches publication in JHEP
Merging binary black holes formed through double-core evolution
Creators: name: Qin, Y.
name: Hu, R. -C.
name: Meynet, G.
name: Wang, Y. Z.
name: Zhu, J. -P.
name: Song, H. F.
name: Shu, X. W.
name: Wu, S. C.
Publisher: name: arXiv
Year: 2023
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: To date, various formation channels of merging events have been heavily explored with the detection of nearly 100 double black hole (BH) merger events reported by the LIGO-Virgo-KAGRA (LVK) Collaboration. We here systematically investigate an alternative formation scenario, i.e., binary BHs (BBHs) formed through double helium stars (hereafter double-core evolution channel). In this scenario, the two helium stars (He-rich stars) could be the outcome of the classical isolated binary evolution scenario involving with and without common-envelope phase (i.e., CE channel and stable mass transfer channel), or alternatively of massive close binaries evolving chemically homogeneously (i.e., CHE channel). We perform detailed stellar structure and binary evolution calculations that take into account internal differential rotation and mass loss of He-rich stars, as well as tidal interactions in binaries. For double He-rich stars with equal masses in binaries, we find that tides start to be at work on the Zero Age Helium Main Sequence (ZAHeMS: the time when a He-rich star starts to burn helium in the core, which is analogous to ZAMS for core hydrogen burning) for initial orbital periods not longer than 1.0 day, depending on the initial metallicities. Besides the stellar mass loss rate and tidal interactions in binaries, we find that the role of the angular momentum transport efficiency in determining the resulting BH spins, becomes stronger when considering BH progenitors originated from a higher metal-metallicity environment. We highlight that double-core evolution scenario does not always produce fast-spinning BBHs and compare the properties of the BBHs reported from the LVK with our modeling.
description: 16 pages, 14 figures, accepted in A&A
Duoidally enriched Freyd categories
Creators: name: Heunen, Chris
name: Sigal, Jesse
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.3.1; F.3.2

description: Freyd categories provide a semantics for first-order effectful programming languages by capturing the two different orders of evaluation for products. We enrich Freyd categories in a duoidal category, which provides a new, third choice of parallel composition. Duoidal categories have two monoidal structures which account for the sequential and parallel compositions. The traditional setting is recovered as a full coreflective subcategory for a judicious choice of duoidal category. We give several worked examples of this uniform framework, including the parameterised state monad, basic separation semantics for resources, and interesting cases of change of enrichment
description: To appear at RAMiCS 2023
$\mathbf{θ_{13}^{}}$ and The Flavor Ring
Creators: name: Kile, Jennifer
name: Pérez, M. Jay
name: Ramond, Pierre
name: Zhang, Jue
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the results of a numerical search for the Dirac Yukawa matrices of the Standard Model, consistent with the quark and lepton masses and their mixing angles. We assume a diagonal up-quark matrix, natural in $\bs{\m Z_7 \rtimes \m Z_3}$, Bimaximal or Tri-bimaximal seesaw mixing, and $SU(5)$ unification to relate the down-quark and charged lepton Dirac Yukawa matrices using Georgi-Jarlskog mechanisms. The measured value of $θ_{13}$ requires an asymmetric down-quark Yukawa matrix. Satisfying the measured values of both $θ_{13}$ and the electron mass restricts the number of solutions, underlying the importance of the recent measurement of the reactor angle.
description: 59 pages, 10 figures, 18 tables. Mathematica file included as an ancillary file
A Positivity-preserving High Order Finite Volume Compact-WENO Scheme for Compressible Euler Equations
Creators: name: Guo, Yan
name: Xiong, Tao
name: Shi, Yufeng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, a positivity-preserving fifth-order finite volume compact-WENO scheme is proposed for solving compressible Euler equations. As we know conservative compact finite volume schemes have high resolution properties while WENO (Weighted Essentially Non-Oscillatory) schemes are essentially non-oscillatory near flow discontinuities. We extend the main idea of WENO schemes to some classical compact finite volume schemes [32], where lower order compact stencils are combined with WENO nonlinear weights to get a higher order finite volume compact-WENO scheme. The newly developed positivity-preserving limiter [46,44] is used to preserve positive density and internal energy for compressible Euler equations of fluid dynamics. The HLLC (Harten, Lax, and van Leer with Contact) approximate Riemann solver [39,2] is used to get the numerical flux at the cell interfaces. Numerical tests are presented to demonstrate the high-order accuracy, positivity-preserving, high-resolution and robustness of the proposed scheme.
Chrono-chemodynamical analysis of the globular cluster NGC 6355: Looking for the fundamental bricks of the Bulge
Creators: name: Souza, Stefano O.
name: Ernandes, Heitor
name: Valentini, Marica
name: Barbuy, Beatriz
name: Chiappini, Cristina
name: Pérez-Villegas, Angeles
name: Ortolani, Sergio
name: Friaça, Amâncio C. S.
name: Queiroz, Anna B. A.
name: Bica, Eduardo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The information on Galactic assembly time is imprinted on the chemodynamics of globular clusters. This makes them important probes that help us to understand the formation and evolution of the Milky Way. Discerning between in-situ and ex-situ origin of these objects is difficult when we study the Galactic bulge, which is the most complex and mixed component of the Milky Way. To investigate the early evolution of the Galactic bulge, we analysed the globular cluster NGC 6355. We derived chemical abundances and kinematic and dynamic properties by gathering information from high-resolution spectroscopy with FLAMES-UVES, photometry with the Hubble Space Telescope, and Galactic dynamic calculations applied to the globular cluster NGC 6355. We derive an age of $13.2\pm1.1$ Gyr and a metallicity of [Fe/H]$=-1.39\pm0.08$ for NGC 6355, with $α$-enhancement of [$α$/Fe]$=+0.37\pm0.11$. The abundance pattern of the globular cluster is compatible with bulge field RR Lyrae stars and in-situ well-studied globular clusters. The orbital parameters suggest that the cluster is currently confined within the bulge volume when we consider a heliocentric distance of $8.54\pm0.19$ kpc and an extinction coefficient of $R_V = 2.84\pm0.02$. NGC 6355 is highly likely to come from the main bulge progenitor. {Nevertheless, it still} has a low probability of being formed from an accreted event because its age is uncertain and because of the combined [Mg/Mn] [Al/Fe] abundance. Its relatively low metallicity with respect to old and moderately metal-poor inner Galaxy clusters may suggest a low-metallicity floor for globular clusters that formed in-situ in the early Galactic bulge.
description: 20 pages, 26 figures, and 9 tables. Astronomy & Astrophysics, in press. Some minor corrections
Capturing the Value Premium - Global Evidence from a Fair Value-Based Investment Strategy
Creators: name: Sebastian, Steffen P.
name: Woltering, René-Ojas
name: Weis, Christian
name: Schindler, Felix
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: Value premium Global diversification Net asset value Investment strategy
subject: 330 Wirtschaft

description: This paper examines the risk premium of value stocks within a global investment strategy framework. We test whether absolute or relative mispricing is better suited to capturing the global value premium by using fair value-based net asset values (NAVs) as our proxies for fundamental value. We find that investing in the most underpriced stocks relative to the average ratio of price to fundamental value in a country is the key to achieving superior risk-adjusted returns. The annualized excess return of the global value portfolio sorted according to relative mispricing is 10.0%, and remains significant after controlling for common risk factors.
Temporal and Spatial Comparison of Online Searches and Confirmed Cases of Listeriosis Outbreak: An Exploratory Study of Google Trends in the US
Creators: name: Nguyen Ngoc, Hung
name: Kriengsinyos, Wantanee
Publisher: name: figshare
Year: 2021
Subjects: classificationCode: 300605
subject: Food safety, traceability, certification and authenticity
classificationCode: 370499
subject: Geoinformatics not elsewhere classified

description: Listeriosis or listeria infection is a rare, serious, and high mortality disease, which is the third leading cause of death from foodborne illness in the US. This disease is characterized by non-specific symptoms with a long incubation period ranging from one to four weeks, as late as 90 days after exposure. Traditional surveillance investigations of listeriosis' clusters and food sources remained limited due to a small number of geographically dispersed case-patients, long incubation period, and difficulties in patients’ recall of food exposures. Therefore, a timely and publicly accessible surveillance tool may allow better food safety advice and education campaigns. People with listeriosis may search online through Google Trends (GT), which appears to be a potential tool web-based for real-time surveillance of outbreaks. The present exploratory study compares the spatiotemporal dynamics of listeriosis searches on GT, in comparison with CDC’s surveillance data at state- and county-level within the state of Texas. The GT’s query volumes of disease terms, pathogen, and symptoms were extracted from 2005 and 2018. Results from spatial and temporal analyses manifest noticeably similar patterns between the search frequency and the actual listeriosis incidence. Time series analysis of the Google Trends showed a lag period of -1 months with the CDC reported data. This study contributed that the Google Trends search data hold a potential role in forecasting emerging rare infectious disease events, especially in resource-constrained areas. The competence to briskly gather and disseminate information about outbreaks is useful for food safety regulators in identifying the food sources and minimizing the contamination.
A measurement of the Alcock-Paczynski effect using cosmic voids in the SDSS
Creators: name: Sutter, P. M.
name: Pisani, Alice
name: Wandelt, Benjamin D.
name: Weinberg, David H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform an Alcock-Paczynski test using stacked cosmic voids identified in the SDSS Data Release 7 main sample and Data Release 10 LOWZ and CMASS samples. We find ~1,500 voids out to redshift $0.6$ using a heavily modified and extended version of the watershed algorithm ZOBOV, which we call VIDE (Void IDentification and Examination). To assess the impact of peculiar velocities we use the mock void catalogs presented in Sutter et al. (2013). We find a constant uniform flattening of 14% along the line of sight when peculiar velocities are included. This flattening appears universal for all void sizes at all redshifts and for all tracer densities. We also use these mocks to identify an optimal stacking strategy. After correcting for systematic effects we find that our Alcock-Paczynski measurement leads to a preference of our best-fit value of $Ω_{\rm M}\sim 0.15$ over $Ω_{\rm M} = 1.0$ by a likelihood ratio of 10. Likewise, we find a factor of $4.5$ preference of the likelihood ratio for a $Λ$CDM $Ω_{\rm M} = 0.3$ model and a null measurement. Taken together, we find substantial evidence for the Alcock-Paczynski signal in our sample of cosmic voids. Our assessment using realistic mocks suggests that measurements with future SDSS releases and other surveys will provide tighter cosmological parameter constraints. The void-finding algorithm and catalogs used in this work will be made publicly available at http://www.cosmicvoids.net.
description: 8 pages, 4 figures, 2 tables, MNRAS accepted
CO Excitation in High-z Main Sequence Analogues: Resolved CO(4-3)/CO(3-2) Line Ratios in DYNAMO Galaxies
Creators: name: Lenkić, Laura
name: Bolatto, Alberto D.
name: Fisher, Deanne B.
name: Abraham, Roberto
name: Glazebrook, Karl
name: Herrera-Camus, Rodrigo
name: Levy, Rebecca C.
name: Obreschkow, Danail
name: Volpert, Carolyn G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The spectral line energy distribution of carbon monoxide contains information about the physical conditions of the star forming molecular hydrogen gas; however, the relation to local radiation field properties is poorly constrained. Using ~ 1-2 kpc scale ALMA observations of CO(3-2) and CO(4-3), we characterize the CO(4-3)/CO(3-2) line ratios of local analogues of main sequence galaxies at z ~ 1-2, drawn from the DYNAMO sample. We measure CO(4-3)/CO(3-2) across the disk of each galaxy and find a median line ratio of $R_{43} = 0.54^{+0.16}_{-0.15}$ for the sample. This is higher than literature estimates of local star-forming galaxies and is consistent with multiple lines of evidence that indicate DYNAMO galaxies, despite residing in the local Universe, resemble main-sequence galaxies at z ~ 1-2. Comparing to existing lower resolution CO(1-0) observations, we find $R_{41}$ and $R_{31}$ values in the range $\sim 0.2-0.3$ and $\sim 0.4-0.8$ respectively. We combine our kpc-scale resolved line ratio measurements with HST observations of H$α$ to investigate the relation to star formation rate surface density and compare this relation to expectations from models. We find increasing CO(4-3)/CO(3-2) with increasing star formation rate surface density; however, models over-predict the line ratios across the range of star formation rate surface densities we probe, particularly at the lower range. Finally, SOFIA observations with HAWC+ and FIFI-LS reveal low dust temperatures and no deficit of [CII] emission with respect to the total infrared luminosity.
description: 22 pages, 9 figures, 4 tables, ApJ accepted
Conflicting Symmetries in Topologically Ordered Surface States of Three-dimensional Bosonic Symmetry Protected Topological Phases
Creators: name: Cho, Gil Young
name: Teo, Jeffrey C.
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the Z2 topologically ordered surface state of three-dimensional bosonic SPT phases with the discrete symmetries G1 x G2. It has been argued that the topologically ordered surface state cannot be realized on a purely two-dimensional lattice model. We carefully examine the statement and show that the surface state should break G2 if the symmetry G1 is gauged. This manifests the conflict of the symmetry G1 and G2 on the surface of the three-dimensional SPT phase. Given that there is no such phenomena in the purely two-dimensional model, it signals that the symmetries are encoded anomalously on the surface of the three-dimensional SPT phases and that the surface state can never be realized on the purely two-dimensional models.
description: 9 pages plus epsilon + updated acknowledgement
Imprints of $α$ clustering in the density profiles of $^{12}$C and $^{16}$O
Creators: name: Horiuchi, W.
name: Itagaki, N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The $^{4}$He nucleus is a well bound and highly correlated four-nucleon system that is also found in form of $α$-clusters as substructure in nuclear many-body systems. The standard single-particle shell model cannot represent these four-body correlations. It is highly desirable to find a simple way to identify and distinguish these fundamental structures without large-scale computations. In this paper, we investigate with intrinsic Slater determinants as trial states in how far these two competing pictures prevail in the ground states of $^{12}$C and $^{16}$O. The trial states can describe both the $j$-$j$ coupling shell-model and $α$-cluster configurations in a unified way. One-body density distributions of the trial states are calculated and compared to elastic scattering cross section data. The parameters of the trial state are chosen to reproduce the experimental charge radii. A well developed cluster structure is characterized by an enhancement of the differential elastic scattering cross sections, as well as the elastic charge form factors around the first peak positions. The density profiles of the internal regions can also be probed at higher momentum transfer regions beyond the second minimum. With these trial states one can visualize the competition between cluster and shell structure in an intuitive and simple way.
description: 5 pages, 3 figures, to appear in Phys. Rev. C (Letter)
Switching integrators reversibly in the astrophysical $N$-body problem
Creators: name: Hernandez, David M.
name: Dehnen, Walter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a simple algorithm to switch between $N$-body time integrators in a reversible way. We apply it to planetary systems undergoing arbitrarily close encounters and highly eccentric orbits, but the potential applications are broader. Upgrading an ordinary non-reversible switching integrator to a reversible one is straightforward and introduces no appreciable computational burden in our tests. Our method checks if the integrator during the time step violates a time-symmetric selection condition and redoes the step if necessary. In our experiments a few percent of steps would have violated the condition without our corrections. By eliminating them the algorithm avoids long-term error accumulation, of several orders magnitude in some cases.
description: 10 pages, 8 figures. Matches accepted MNRAS version
Superflare occurrence and energies on G-, K- and M-type dwarfs
Creators: name: Candelaresi, Simon
name: Hillier, Andrew
name: Maehara, Hiroyuki
name: Brandenburg, Axel
name: Shibata, Kazunari
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Kepler data from G-, K- and M-type stars are used to study conditions that lead to superflares with energies above $10^{34} {\rm erg}$. From the 117,661 stars included, 380 show superflares with a total of 1690 such events. We study whether parameters, like effective temperature or the rotation rate, have any effect on the superflare occurrence rate or energy. With increasing effective temperature we observe a decrease in the superflare rate, which is analogous to the previous findings of a decrease in dynamo activity with increasing effective temperature. For slowly rotating stars, we find a quadratic increase of the mean occurrence rate with the rotation rate up to a critical point, after which the rate decreases linearly. Motivated by standard dynamo theory, we study the behavior of the relative starspot coverage, approximated as the relative brightness variation. For faster rotating stars, an increased fraction of stars shows higher spot coverage, which leads to higher superflare rates. A turbulent dynamo is used to study the dependence of the Ohmic dissipation as a proxy of the flare energy on the differential rotation or shear rate. The resulting statistics of the dissipation energy as a function of dynamo number is similar to the observed flare statistics as a function of the inverse Rossby number and shows similarly strong fluctuations. This supports the idea that superflares might well be possible for solar-type G stars.
description: 9 pages, 14 figures, published in ApJ