cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Unified neutron star equations of state calibrated to nuclear properties
Creators: name: Malik, Tuhin
name: Pais, Helena
name: Providência, Constança
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recently, in Malik23, a dataset of several EoS for purely nucleonic stellar matter based on a non-linear RMF model prescription, and constrained to properties of nuclear matter, to state-of-the-art chiral effective field theory calculations for low-density neutron matter, and to astrophysical data, were proposed. In this work, twenty one unified neutron star EoS were chosen from that dataset, in such a way that a large range of values of the slope of the symmetry energy at saturation is covered. Several quantities are calculated and discussed, such as the the proton fraction and the direct Urca behavior, the density dependence of the speed of sound and the trace anomaly, the crust-core transition properties, the compatibility with astrophysical observations, and the neutron matter properties from $χ$EFT calculations and pQCD constraints. We construct unified EoS, where the outer crust is given by the BSk22 functional, and the inner crust is calculated from a CLD approximation. The core is purely nucleonic, made of protons, neutrons, electrons and muons, under charge neutrality and in $β-$equilibrium conditions. The correlation of the slope of the symmetry energy at saturation with the crust-core transition density and proton fraction is analysed, and equations that translate these relations are proposed. Moreover, the spectral representation for all the EOS according to the format proposed in Lindblom10 is given, which is a convenient representation to study quasi-periodic oscillations with realistic EOS. It is shown that several of these EoS have in the center of the most massive NS a speed of sound squared of the order of $\lesssim 0.5$. Most of the EoS predict a maximum central density of the order of about 6 times the nuclear saturation density. Three of the EoS satisfy all of the constraints imposed. All these EoS will be made available in the CompOSE platform.
description: 14 pages, 12 figures, 7 tables
Hidden scale invariance of turbulence in a shell model: from forcing to dissipation scales
Creators: name: Mailybaev, Alexei A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Intermittency is one of central obstacles for understanding small-scale dynamics in the fully developed hydrodynamic turbulence. The modern approach is largely based on the multifractal theory of Parisi and Frisch which is, however, phenomenological. It was shown recently that the intermittency can be related to the hidden scale invariance. The latter is a new statistical scaling symmetry unbroken in a rescaled (projected) formulation of equations of motion. In the present work, we consider a shell model of turbulence and describe how the hidden symmetry manifests itself through all scales, both in the inertial interval and in the transition to forcing and dissipation ranges. In the inertial interval, we derive anomalous scaling laws from the hidden symmetry. Then, we show how a complicated form of the dissipation range is controlled by intermittent rescaled Reynolds numbers within a large range of dissipation scales. This dissipative intermittency can be removed by using a special class of dissipation models. For such models, the hidden scale invariance is restored both in the inertial interval and the dissipation range. Overall, the presented approach deduces the multifractal theory and some of its basic conclusions from the hidden scaling symmetry of equations of motion.
description: 42 pages, 15 figures
Additional file 1 of ADHD overdiagnosis and the role of patient gender among Iranian psychiatrists
Creators: name: Beheshti, Ashkan
name: Chavanon, Mira-Lynn
name: Schneider, Silvia
name: Christiansen, Hanna
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
AutoER : a system for the automatic generation and evaluation of UML database design diagrams
Creators: name: Foss, Sarah
Publisher: name: University of British Columbia
Year: 2022

description: Interactive question systems improve student engagement and provide opportunities for increased practice and skill mastery. Developing database design diagrams is a key skill for database courses, but providing evaluation feedback is time-consuming for instructors and accurate auto-grading is challenging due to the variability of student answers especially when labeling diagram components. This work presents a system for the automatic creation and real-time evaluation of database design questions using Unified Modeling Language (UML) diagrams. Students directly interact with the question text, and the system continuously generates a visual representation of their answer as well as provides immediate feedback at any time. By utilizing a web-based, customizable user interface, the system supports precise marking and the ability to practice variants of design questions to mastery. Classroom evaluations demonstrate high student satisfaction compared to traditional UML design questions and preference for using the software to improve their learning outcomes. Experiments also measured how submission limits, such as maximum submission limits and applying regression penalties, significantly improve student behavior.
Heavy-particle formalism with Foldy-Wouthuysen representation
Creators: name: Long, Bingwei
name: Lensky, Vadim
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Utilizing the Foldy-Wouthuysen representation, we use a bottom-up approach to construct heavy-baryon Lagrangian terms, without employing a relativistic Lagrangian as the starting point. The couplings obtained this way feature a straightforward $1/m$ expansion, which ensures Lorentz invariance order by order in effective field theories. We illustrate possible applications with two examples in the context of chiral effective field theory: the pion-nucleon coupling, which reproduces the results in the literature, and the pion-nucleon-delta coupling, which does not employ the Rarita-Schwinger field for describing the delta isobar, and hence does not invoke any spurious degrees of freedom. In particular, we point out that one of the subleading $πN Δ$ couplings used in the literature is, in fact, redundant, and discuss the implications of this. We also show that this redundant term should be dropped if one wants to use low-energy constants fitted from $πN$ scattering in calculations of $NN\to NNπ$ reactions.
description: 28 pages, 2 figures, RevTeX4, appendix added, version published in Phys. Rev. C
Additional file 1 of Evidence supporting deployment of next generation insecticide treated nets in Burkina Faso: bioassays with either chlorfenapyr or piperonyl butoxide increase mortality of pyrethroid-resistant Anopheles gambiae
Creators: name: Hien, Aristide S.
name: Soma, Dieudonné D.
name: Maiga, Samina
name: Coulibaly, Dramane
name: Diabaté, Abdoulaye
name: Belemvire, Allison
name: Diouf, Mame B.
name: Jacob, Djenam
name: Koné, Adama
name: Dotson, Ellen
name: Awolola, Taiwo S.
name: Oxborough, Richard M.
name: Dabiré, Roch K.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. Study sites distributed in three eco-climatical areas with different agricultural practices.
Highly Rectifying Conical Nanopores in Amorphous SiO2 Membranes for Nanofluidic Osmotic Power Generation and Electroosmotic Pumps
Creators: name: Kiy, Alexander
name: Dutt, Shankar
name: Notthoff, Christian
name: Toimil-Molares, Maria E.
name: Kirby, Nigel
name: Kluth, Patrick
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanopore membranes are a versatile platform for a wide range of applications ranging from medical sensing to filtration and clean energy generation. To attain high-flux rectifying ionic flow, it is required to produce short channels exhibiting asymmetric surface charge distributions. This work reports on a system of track etched conical nanopores in amorphous SiO$_2$ membranes, fabricated using the scalable track etch technique. Pores are fabricated by irradiation of 1 $μ$m thick SiO$_2$ windows with 2.2 GeV $^{197}$Au ions and subsequent chemical etching. Structural characterisation is performed using atomic force microscopy (AFM), scanning electron microscopy (SEM), small angle X-ray scattering (SAXS), ellipsometry, and surface profiling. Conductometric characterisation of the pore surface is performed using a membrane containing 16 pores, including an in-depth analysis of ionic transport characteristics. The pores have a tip radius of (5.7 $\pm$ 0.1) nm, a half-cone angle of (12.6 $\pm$ 0.1)$^{\circ}$, and a length of (710 $\pm$ 5) nm. The $pK_a$, $pK_b$, and $pI$ are determined to 7.6 $\pm$ 0.1, 1.5 $\pm$ 0.2, and 4.5 $\pm$ 0.1, respectively, enabling the fine-tuning of the surface charge density between +100 and -300 mC $m^{-2}$ and allowing to achieve an ionic current rectification ratio of up to 10. This highly versatile technology addresses challenges that contemporary nanopore systems face, and offers a platform to improve the performance of existing applications.
Localization of abelian gauge fields with Stueckelberg-like geometrical coupling on $f(T,B)$-thick brane
Creators: name: Belchior, F. M.
name: Moreira, A. R. P.
name: Maluf, R. V.
name: Almeida, C. A. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of $f(T,B)$ modified teleparallel gravity, we investigate the influence of torsion scalar $T$ and boundary term $B$ on the confinement of both the gauge vector and Kalb-Ramond fields. Both fields require a suitable coupling in five-dimensional braneworld scenarios to yield a normalizable zero mode. We propose a Stueckelberg-like geometrical coupling that non-minimally couples the fields to the torsion scalar and boundary term. To set up our braneworld models, we use the first-order formalism in which two kinds of superpotential are taken: sine-Gordon and $ϕ^{4}$-deformed. The geometrical coupling is used to produce a localized zero mode. Moreover, we analyze the massive spectrum for both fields and obtain possible resonant massive modes. Furthermore, we do not find tachyonic modes leading to a consistent thick brane.
description: 28 pages, 7 captioned figures, references added, Enhanced version to appear in European Physical Journal C
The influence of social context on co-design practice between Indonesia and the UK
Creators: name: Setiawan, Andi
Publisher: name: Lancaster University
Year: 2021
Subjects: Co-design
social contexts

description: Co-design has its roots in the participatory design tradition in Scandinavia. The participatory root emphasises the active engagement of the user in the design process. The Scandinavian context and in general Western societies, especially with their democratic traditions, are deemed appropriate for the application of co-design methods. When co-design is applied outside the Western context, adjustments have to be done to respond to different contexts. Comparison between the context of Indonesia and the UK is employed as case studies in this study. Indonesia is considered to have a different context from the UK, where the value of democracy is still in the development stage, and the influence of the authoritarian regime is still strong. This study seeks to understand better how the influence of the different social contexts might inform the application of co-design. Furthermore, this study also uses those different characteristics of the co-design to develop recommendations for an alternative framework of co-design methods that are appropriate for the Indonesian context. The case study research was conducted on co-design projects both in Indonesia and the UK. In Indonesia, field research was conducted in Jakarta, Solo and Malang. While in the UK, field research was held in Lancaster, London and Worthing. The field research involved the member of the community, designers and other stakeholders involved in the co-design process. Field studies were conducted to determine the effectiveness of co-design based on four criteria: decision-making power, collaboration, flexibility and outcome-focused. Furthermore, the study also seeks on how the influence of contextual factors on the effectiveness of the co-design process. This study found that the most influenced criterion by different context are decision-making power. The UK case studies have indicated the shifting of the designer's power in the decision-making process. In contrary, in Indonesia, the decision still led by the designer. Moreover, the findings of the other criteria in both contexts are equally effective. Even so, there are differences in contextual factors that influence the effectiveness of each of these criteria. Furthermore, from the comparative analysis of the two contexts, a co-design method framework for Indonesia was developed. The lesson learned process from the advantages and disadvantages of implementing co-design in both contexts resulted in an 8 point co-design framework recommendation.
title: Zur Entscheidungskonvergenz in kognitiven Systemen
Creators: name: Kelsch, Johann
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2015

description: Das Ziel dieses Beitrags ist, eine Methode für die Analyse der Entscheidungsvorgänge innerhalb

kognitiver Systeme vorzustellen. Diese Methode ist ein Teil eines Frameworks für die ganzheitliche Gestaltung

dynamischer kognitiver Systeme aus dem Bereich hochautomatisierter Fahrzeugführung. Sie basiert

auf der Hypothese, dass Entscheidungen in einem kognitiven System kein Ergebnis einer expliziten

Berechnung in einem speziell dafür ausgewiesenen Modul sind, sondern in einem Prozess der Selbstorganisation

der Systemelemente generiert werden können. Zur Unterstützung dieser Hypothese ist in diesem

Beitrag ein skalierbares Modell der kognitiven Systeme präsentiert, das sich mithilfe der Multiagentenund

der Graphentheorie mathematisieren und analysieren lässt. Am generischen Beispiel eines Entscheidungsvorgangs

beim Führen eines hochautomatisierten Fahrzeuges ist dieses Modell erläutert. Das Modell

und die o.g. Methode sind auf ihre grundsätzliche Anwendbarkeit für die Gestaltung und Analyse kognitiver

Systeme mittels einiger bekannter Ansätze aus der Gestaltung der geteilten Fahrzeugführung evaluiert.
Linear-response time-dependent density functional theory approach to warm dense matter with adiabatic exchange--correlation kernels
Creators: name: Moldabekov, Zhandos A.
name: Pavanello, Michele
name: Boehme, Maximilian P.
name: Vorberger, Jan
name: Dornheim, Tobias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present a new methodology for the linear-response time-dependent density functional theory (LR-TDDFT) calculation of the dynamic density response function of warm dense matter in an adiabatic approximation that can be used with any available exchange-correlation (XC) functional across Jacob's Ladder and across temperature regimes. The main novelty of the presented approach is that it can go beyond the adiabatic local density approximation (ALDA) and generalized LDA (AGGA) while preserving the self-consistence between the Kohn-Sham (KS) response function and adiabatic XC kernel for extended systems. The key ingredient for the presented method is the combination of the adiabatic XC kernel from the direct perturbation approach with the macroscopic dynamic KS response from the standard LR-TDDFT method using KS orbitals. We demonstrate the application of the method for the example of warm dense hydrogen, for which we perform a detailed analysis of the KS density response function, the RPA result, the total density response function and of the adiabatic XC kernel. The analysis is performed using LDA, GGA, and meta-GGA level approximations for the XC effects. The presented method is directly applicable to disordered systems such as liquid metals, warm dense matter, and dense plasmas.
Additional file 1: of Gene-gene interactions lead to higher risk for development of type 2 diabetes in a Chinese Han population: a prospective nested case-control study
Creators: name: Zhou, Wen
name: Li, Yuqian
name: Zhang, Lulu
name: Shi, Yuanyuan
name: Wang, Chongjian
name: Zhang, Dongdong
name: Liu, Xuejiao
name: Mao, Zhenxing
name: Li, Linlin
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Table S1 Genotypic and allelic distributions of single nucleotide polymorphisms (SNPs) of GCKR and G6PC2. Table S2 Associations between the GCKR and G6PC2 gene haplotypes and T2DM. Table S3 Distribution of haplotypes of the G6PC2 and GCKR genes in case and control groups. (DOCX 28 kb)
Isomonodromic deformations of connections with singularities of parahoric formal type
Creators: name: Bremer, Christopher L.
name: Sage, Daniel S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14D24 (Primary), 34Mxx, 53D30 (Secondary)

description: In previous work, the authors have developed a geometric theory of fundamental strata to study connections on the projective line with irregular singularities of parahoric formal type. In this paper, the moduli space of connections that contain regular fundamental strata with fixed combinatorics at each singular point is constructed as a smooth Poisson reduction. The authors then explicitly compute the isomonodromy equations as an integrable system. This result generalizes work of Jimbo, Miwa, and Ueno to connections whose singularities have parahoric formal type.
description: 32 pages. One of the main theorems (Theorem 5.1) has been significantly strengthened. It now states that the isomonodromy equations give rise to an integrable system on the moduli space of framed connections with fixed combinatorics instead of only on a principal GL_n bundle over this space. Sections 5 and 6 have been substantially rewritten
Prompt Engineering Tutorial
Creators: name: Haase, Robert
Publisher: name: Zenodo
Year: 2023
Subjects: prompt engineering
data analysis
chatgpt

description: This slide deck and the accompanied Jupyter Book contains notebooks demonstrating OpenAI's API for using chatGPT. We will use it to answer questions, translate text, write code, analyze data and generate images.
 
See also:
https://scads.github.io/prompt-engineering-tutorial-2023
Additional file 1 of Atmospheric oxygenation of the early earth and earth-like planets driven by competition between land and seafloor weathering
Creators: name: Watanabe, Yasuto
name: Tajika, Eiichi
Publisher: name: figshare
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geochemistry

description: Additional file 1: Supplementary Text that describes the temperature parameterization, Supplementary Figures that describes the dependency of the result on parameters associated with weathering, and Supplementary Tables that summarizes the values of parameters.
Additional file 1 of Multimodal assessment of acute cardiac toxicity induced by thoracic radiotherapy in cancer patients. Study protocol
Creators: name: Merino, Tomás
name: Pinto, Mauricio P.
name: Orellana, María Paz
name: Martinez, Gonzalo
name: Andía, Marcelo
name: Munoz-Schuffenegger, Pablo
name: Acevedo, Francisco
name: Gabrielli, Luigi
name: Sanchez, Cesar
name: Pereira, Jaime
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Developmental Biology
subject: Cancer

description: Additional file 1. . SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents*.
A Novel Power Allocation Scheme for Two-User GMAC with Finite Input Constellations
Creators: name: Harshan, J.
name: Rajan, B. Sundar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Constellation Constrained (CC) capacity regions of two-user Gaussian Multiple Access Channels (GMAC) have been recently reported, wherein an appropriate angle of rotation between the constellations of the two users is shown to enlarge the CC capacity region. We refer to such a scheme as the Constellation Rotation (CR) scheme. In this paper, we propose a novel scheme called the Constellation Power Allocation (CPA) scheme, wherein the instantaneous transmit power of the two users are varied by maintaining their average power constraints. We show that the CPA scheme offers CC sum capacities equal (at low SNR values) or close (at high SNR values) to those offered by the CR scheme with reduced decoding complexity for QAM constellations. We study the robustness of the CPA scheme for random phase offsets in the channel and unequal average power constraints for the two users. With random phase offsets in the channel, we show that the CC sum capacity offered by the CPA scheme is more than the CR scheme at high SNR values. With unequal average power constraints, we show that the CPA scheme provides maximum gain when the power levels are close, and the advantage diminishes with the increase in the power difference.
description: To appear in IEEE Transactions on Wireless Communications, 10 pages and 7 figures
On the nature of X(3960)
Creators: name: Chen, Yu
name: Chen, Hao
name: Meng, Ce
name: Qi, Hong-Rong
name: Zheng, Han-Qing
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A near-threshold enhancement in the $D_s^+ D_s^-$ system, dubbed as $X(3960)$, is observed by the LHCb collaboration recently. A combined analysis on $χ_{c0}(3930)~(\to D^+ D^-)$, $X(3960)~(\to D_s^+ D_s^-)$, and $X(3915)~(\to J/ψω)$ is performed using both a $K$-matrix approach of $D_{(s)}\bar{D}_{(s)}$ four-point contact interactions and a model of Flatté-like parameterizations. The use of the pole counting rule and spectral density function sum rule indicate, under current statistics, that this $D_s^+ D_s^-$ near-threshold state has probably the mixed nature of a $c\bar{c}$ confining state and $D_s^+ D_s^-$ continuum.
description: 8 pages, 4 figures, 5 tables
Additional file 2 of The legacy of traditional rice cultivation by descendants of Indian contract laborers in Suriname
Creators: name: Ramdayal, Melissa
name: Maat, Harro
name: van Andel, Tinde
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 2. Questionnaire.
A complete classification of doubly even self-dual codes of length 40
Creators: name: Betsumiya, Koichi
name: Harada, Masaaki
name: Munemasa, Akihiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A complete classification of binary doubly even self-dual codes of length 40 is given. As a consequence, a classification of binary extremal self-dual codes of length 38 is also given.
description: corrected typo
The fast transient AT 2023clx in the nearby LINER galaxy NGC 3799 as a tidal disruption of a very low-mass star
Creators: name: Charalampopoulos, P.
name: Kotak, R.
name: Wevers, T.
name: Leloudas, G.
name: Kravtsov, T.
name: Pursiainen, M.
name: Ramsden, P.
name: Reynolds, T. M.
name: Aamer, A.
name: Anderson, J. P.
name: Arcavi, I.
name: Cai, Y. -Z.
name: Chen, T. -W.
name: Dennefeld, M.
name: Galbany, L.
name: Gromadzki, M.
name: Guti'errez, C. P.
name: Ihanec, N.
name: Kangas, T.
name: Kankare, E.
name: Kool, E.
name: Lawrence, A.
name: Lundqvist, P.
name: Makrygianni, L.
name: Mattila, S.
name: Müller-Bravo, T. E.
name: Nicholl, M.
name: Onori, F.
name: Sahu, A.
name: Smartt, S. J.
name: Sollerman, J.
name: Wang, Y.
name: Young, D. R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an extensive analysis of the optical and UV properties of AT2023clx, the closest TDE to date, that occurred in the nucleus of the interacting LINER galaxy, NGC3799 (z=0.01107). After correcting for the host reddening (E(B-V) = 0.179 mag), we find its peak absolute g-band magnitude to be -18.03{+/-}0.07 mag, and its peak bolometric luminosity to be L=(1.57{+/-}0.19)x10^43 erg/s. AT2023clx displays several distinctive features: first, it rose to peak within 10.4{+/-}2.5 days, making it the fastest rising TDE to date. Our SMBH mass estimate of M_BH ~ 10^6 Msol rules out the possibility of an intermediate-mass BH as the reason for the fast rise. Dense spectral follow-up reveals a blue continuum that cools slowly and broad Balmer and HeII lines as well as weak HeI 5876,6678 emission features that are typically seen in TDEs. The early, broad (width ~ 15000 km/s) profile of Ha matches theoretical expectations from an optically thick outflow. A flat Balmer decrement (~ 1.58) suggests that the lines are collisionally excited rather than being produced via photoionisation, in contrast to typical active galactic nuclei. A second distinctive feature, seen for the first time in TDE spectra, is a sharp, narrow emission peak at a rest wavelength of ~ 6353 A. This feature is clearly visible up to 10d post-peak; we attribute it to clumpy material preceding the bulk outflow, which manifests as a high-velocity component of Ha (-9584 km/s). Its third distinctive feature is the rapid cooling during the first ~ 20 days after peak, reflected as a break in the temperature evolution. Combining these findings, we propose a scenario for AT2023clx involving the disruption of a very low-mass star (<=0.1 Msol) with an outflow launched in our line of sight and with disruption properties that led to efficient circularisation and prompt accretion disc formation, observed through a low-density photosphere.
description: Accepted for publication in Astronomy and Astrophysics (in production; official acceptance date: 28/06/2024)
Optimal ramp shapes for the fermionic Hubbard model in infinite dimensions
Creators: name: Eurich, Nikolai
name: Eckstein, Martin
name: Werner, Philipp
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use non-equilibrium dynamical mean field theory and a real-time diagrammatic impurity solver to study the heating associated with time-dependent changes of the interaction in a fermionic Hubbard model. Optimal ramp shapes U(t) which minimize the excitation energy are determined for an infinitesimal change. For ramp times of a few inverse hoppings, these optimal U(t) are strongly oscillating with a frequency determined by the bandwidth. We show that the scaled versions of the optimized ramps yield substantially lower temperatures than linear ramps even far outside the perturbative regime.
description: Published version
A 2:1 Mean-Motion Resonance Super-Jovian pair revealed by TESS, FEROS, and HARPS
Creators: name: Bozhilov, Vladimir
name: Antonova, Desislava
name: Hobson, Melissa J.
name: Brahm, Rafael
name: Jordan, Andres
name: Henning, Thomas
name: Eberhardt, Jan
name: Rojas, Felipe I.
name: Batygin, Konstantin
name: Torres-Miranda, Pascal
name: Stassun, Keivan G.
name: Millholland, Sarah C.
name: Stoeva, Denitza
name: Minev, Milen
name: Espinoza, Nestor
name: Ricker, George R.
name: Latham, David W.
name: Dragomir, Diana
name: Kunimoto, Michelle
name: Jenkins, Jon M.
name: Ting, Eric B.
name: Seager, Sara
name: Winn, Joshua N.
name: Villasenor, Jesus Noel
name: Bouma, Luke G.
name: Medina, Jennifer
name: Trifonov, Trifon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of a super-Jovian 2:1 mean-motion resonance (MMR) pair around the G-type star TIC 279401253, whose dynamical architecture is a prospective benchmark for planet formation and orbital evolution analysis. The system was discovered thanks to a single transit event recorded by the Transiting Exoplanet Survey Satellite (TESS) mission, which pointed to a Jupiter-sized companion with poorly constrained orbital parameters. We began ground-based precise radial velocity (RV) monitoring with HARPS and FEROS within the Warm gIaNts with tEss (WINE) survey to constrain the transiting body's period, mass, and eccentricity. The RV measurements revealed not one but two massive planets with periods of 76.80$_{-0.06}^{+0.06}$ days and 155.3$_{-0.7}^{+0.7}$ days, respectively. A combined analysis of transit and RV data yields an inner transiting planet with a mass of 6.14$_{-0.42}^{+0.39}$ M$_{\rm Jup}$ and a radius of 1.00$_{-0.04}^{+0.04}$ R$_{\rm Jup}$, and an outer planet with a minimum mass of 8.02$_{-0.18}^{+0.18}$ M$_{\rm Jup}$, indicating a massive giant pair. A detailed dynamical analysis of the system reveals that the planets are locked in a strong first-order, eccentricity-type 2:1 MMR, which makes TIC 279401253 one of the rare examples of truly resonant architectures supporting disk-induced planet migration. The bright host star, $V \approx$ 11.9 mag, the relatively short orbital period ($P_{\rm b}$ = 76.80$_{-0.06}^{+0.06}$ d) and pronounced eccentricity (e =0.448$_{-0.029}^{+0.028}$) make the transiting planet a valuable target for atmospheric investigation with the James Webb Space Telescope (JWST) and ground-based extremely-large telescopes.
description: Published in the ApJL
Strong field limit analysis of gravitational lensing in Kerr-Taub-NUT spacetime
Creators: name: Wei, Shao-Wen
name: Liu, Yu-Xiao
name: Fu, Chun-E
name: Yang, Ke
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we investigate the strong gravitational lensing by the stationary, axially-symmetric black hole in Kerr-Taub-NUT spacetime in the strong field limit. The deflection angle of light ray and other strong deflection limit coefficients are obtained numerically and they are found to be closely dependent on the NUT charge $n$ and spin $a$. The magnification and the positions of the relativistic images are computed. The caustics are studied and the results show that these caustics drift away from the optical axis, which is quite different from the Schwarzschild black hole case. Moreover, the intersections of the critical curves on the equatorial plane are obtained and it is shown that they increase with the NUT charge. These results show that there is a significant effect of the NUT charge on the strong gravitational lensing.
description: 26 pages, 15 figures, published version. arXiv admin note: text overlap with arXiv:gr-qc/0611110 by other authors
Gravitation with modified fluid Lagrangian: Variational principle and an early dark energy model
Creators: name: Tian, S. X.
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Variational principle is the main approach to obtain complete and self-consistent field equations in gravitational theories. This method works well in pure field cases such as $f(R)$ and Horndeski gravities. However, debates exist in the literature over the modification of perfect fluid. This paper aims to clarify this issue. For a wide class of modified fluid Lagrangian, we show that the variational principle is unable to give complete field equations. One additional equation is required for completeness. Adopting the local energy conservation equation gives the modified fluid a good thermodynamic interpretation. Our result is the first modified fluid theory that can incorporate energy conservation. As an application of this framework, we propose a specific modified fluid model to realize early dark energy triggered by cosmic radiation-matter transition. This model naturally explains why early dark energy occurs around matter-radiation equality and is useful in erasing the Hubble tension.
description: 6 pages, 1 figure, published in Phys. Rev. D
LSTM-ACB-Based RA for IoT Mixed Traffic
Creators: name: Santos, Herman L. dos
name: Marinello, José Carlos
name: Panazio, Cristiano Magalhaes
name: Abrão, Taufik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A novel random access (RA) scheme for mixed URLLC-mMTC traffic scenario is proposed using realistic statistical models, with the use mode presenting long-term traffic regularity. The traffic is predicted by a long short-term memory neural network, which enables a traffic-aware resource slicing aided by contention access class barring-based procedure. The method combines a grant-free (GF) RA scheme with an intermediate step to congestion alleviation. The protocol trade-off is a small overhead while enabling a higher number of decoded received packets thanks to the intermediate step. Numerical results evaluate the system performance for each procedure and combined solution. A comparison with GF benchmark reveals substantial improvement in system performance.
description: Submitted to IoT Forum - S\~ao Paulo
ELIXIR guidelines for curation of e-learning material in TeSS
Creators: name: Zahn, Monique
name: Sand, Oliver
name: Mishra, Ajay
name: Wibberg, Daniel
name: Botzki, Alexander
Publisher: name: Zenodo
Year: 2023

description: Guideline of curation of e-learning material in TeSS, ELIXIR's Training aggregation database
Numerically efficient models of hybrid cascaded multilevel converters for high voltage direct current transmission system
Creators: name: Han, Jintao
Publisher: name: University of British Columbia
Year: 2022

description: The development and integration of renewable energy sources have gained significant attention over the past few decades. It provides a means to cope with the increasing energy consumption demand while reducing carbon emissions. Voltage-source-converter-based high voltage direct current (VSC-HVDC) transmission is a critical enabling technology in integrating hydroelectric power, wind-power plants, and photovoltaic systems into the power grid. To further reduce converter losses and converter station footprint, VSC-HVDC systems have evolved in the past twenty years from the traditional two- and three-level converters to multilevel converters. The modular multilevel converter (MMC) is well-known for its higher modularity, reduced harmonics, and improved converter efficiency, compared to the traditional two- and three-level converters. Recent advancements in VSC-HVDC have brought a new class of multilevel converter topologies, i.e., the so-called hybrid cascaded multilevel converters (HCMCs), which combine the reduced footprint of the conventional VSCs with the lower losses and reduced output harmonics of the MMC. However, simulating large-scale AC-DC networks introduced significant computational challenges in electromagnetic transient (EMT) type programs, as a large number of switching operations and massive input/output data transfer are simulated at a small time step. Thus, the large number of series-connected submodules introduce a high dimension, time-variant matrix to be solved at each time step. Therefore, the efficiency of DM is limited in the electromagnetic transient (EMT) type simulators. This thesis focuses on developing new numerically efficient models, which improve the simulation speed and maintain simulation accuracy for system-level studies simultaneously. The proposed models in this thesis present different levels of simulation details and efficiency, which offer great flexibility to accommodate the requirements of various study tasks. Different from the prior-art models, which mainly focus on the MMC topology, the numerically efficient models of hybrid multilevel converters and their real-time simulation methods are investigated in this thesis.
Full counting statistics in a Majorana single-charge transistor
Creators: name: Kleinherbers, Eric
name: Schünemann, Alexander
name: König, Jürgen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study full counting statistics of electron transport through a Majorana single-charge transistor. At low bias voltage, transport is dominated by the so-called Josephson-Majorana cycle, a sequence of normal and anomalous single-charge and Josephson tunneling. Factorial cumulants characterizing the full counting statistics elucidate the correlated nature of the charge transfers in this cycle. Moreover, we predict a topological transition in the full counting statistics from a perfect Poissonian transfer of Cooper pairs to a correlated switching between two distinct fermion parity states with increasing Josephson coupling.
description: 10 pages, 6 figures
Additional file 1 of Two fungal flavonoid-specific glucosidases/rutinosidases for rutin hydrolysis and rutinoside synthesis under homogeneous and heterogeneous reaction conditions
Creators: name: Kotik, Michael
name: Javůrková, Hana
name: Brodsky, Katerina
name: Pelantová, Helena
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Additional figures and tables.
Partial Weyl Law for Billiards
Creators: name: Bäcker, Arnd
name: Ketzmerick, Roland
name: Löck, Steffen
name: Schanz, Holger
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: For two-dimensional quantum billiards we derive the partial Weyl law, i.e. the average density of states, for a subset of eigenstates concentrating on an invariant region $Γ$ of phase space. The leading term is proportional to the area of the billiard times the phase-space fraction of $Γ$. The boundary term is proportional to the fraction of the boundary where parallel trajectories belong to $Γ$. Our result is numerically confirmed for the mushroom billiard and the generic cosine billiard, where we count the number of chaotic and regular states, and for the elliptical billiard, where we consider rotating and oscillating states.
description: 5 pages, 3 figures, derivation extended, cosine billiard added
Perturbative Field-Theoretical Analysis of Three-Species Cyclic Predator-Prey Models
Creators: name: Yao, Louie Hong
name: Swailem, Mohamed
name: Dobramysl, Ulrich
name: Täuber, Uwe C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We apply a perturbative Doi--Peliti field-theoretical analysis to the stochastic spatially extended symmetric Rock-Paper-Scissors (RPS) and May--Leonard (ML) models, in which three species compete cyclically. Compared to the two-species Lotka--Volterra predator-prey (LV) model, according to numerical simulations, these cyclical models appear to be less affected by intrinsic stochastic fluctuations. Indeed, we demonstrate that the qualitative features of the ML model are insensitive to intrinsic reaction noise. In contrast, and although not yet observed in numerical simulations, we find that the RPS model acquires significant fluctuation-induced renormalizations in the perturbative regime, similar to the LV model. We also study the formation of spatio-temporal structures in the framework of stability analysis and provide a clearcut explanation for the absence of spatial patterns in the RPS system, whereas the spontaneous emergence of spatio-temporal structures features prominently in the LV and the ML models.
description: 45 pages, 13 figures
Physics at the LHC: a short overview
Creators: name: d'Enterria, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The CERN Large Hadron Collider (LHC) started operation a few months ago. The machine will deliver proton-proton and nucleus-nucleus collisions at energies as high as sqrt(s)=14 TeV and luminosities up to L~10^{34} cm^{-2}s^{-1}, never reached before. The main open scientific questions that the seven LHC experiments -- ATLAS, CMS, ALICE, LHCb, TOTEM, LHCf and MOEDAL -- aim to solve in the coming years are succinctly reviewed.
description: 9 pages, 16 plots. Invited review talk Hot-Quarks 2010, La Londe-Les-Maures, July 2010. J. Phys. Conf. Ser. 270, 012001 (2011). Minor typos corrected
Understanding the effect of patient severity on aphasia rehabilitation outcomes
Creators: name: Godlove, Jason
name: Swathi Kiran
Publisher: name: F1000 Research Limited
Year: 2019

description: Research Objectives – To understand the influence of patient severity and intensity of practice on aphasia rehabilitation outcomes.

Design – Retrospective analysis (2013-2014) of anonymously aggregated data collected for over 4500 patients with post-stroke aphasia.

Setting: Patients used a mobile therapy platform, Constant Therapy, downloaded on a tablet and agreed to their data being analyzed for scientific purposes.

Participants: 4500 patients with post-stroke aphasia.

Interventions: Constant Therapy includes over 60 evidence-based therapies for language and cognitive skills. This program was individualized for each patient with targeted tasks that dynamically adapted to each individual’s progress.

Main outcome measures: Based on an initial baseline assessment, a given task was assigned as long as its performance was below 90% accuracy and average latency. For each patient fitting the cohort, accuracy and latency of the first and last 10 items were compared with t-tests to determine improvement.

Results:  ANOVAs using average gain in accuracy and in latency as the dependent measures and initial performance and intensity of practice across domains of language and cognitive therapy showed a significant interaction effect (F (20, 1724) = 11.3, p < .001), indicating that more severe patients improved with increased practice (100 - 1000 trials); and patients with initial accuracy less than 50% could achieve mastery (>80% accuracy with practice of 500 trials or more (F (24, 1724) = 12.4, p < .0001)).

Conclusions – These results show that both patient severity and amount of therapy influence rehabilitation outcomes, but in positive ways. Patients with lower initial scores showed more improvements (30-50 points gains) than patients with higher initial scores, thus severe patients can achieve success on trained tasks, however, they need a lot of practice.
Instantaneous spatially local projective measurements are consistent in a relativistic quantum field
Creators: name: Lin, Shih-Yuin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Suppose the postulate of measurement in quantum mechanics can be extended to quantum field theory, then a local projective measurement at some moment on an object locally coupled with a relativistic quantum field will result in a projection or collapse of the wavefunctional of the combined system defined on the whole time-slice associated with the very moment of the measurement, if the relevant degrees of freedom have nonzero correlations. This implies that the wavefunctionals in the same Hamiltonian system but defined in different reference frames would collapse on different time-slices passing through the same local event where the measurement was done. Are these post-measurement states consistent with each other? We illustrate that the quantum states of the Raine-Sciama-Grove detector-field system started with the same initial Gaussian state defined on the same initial time-slice, then collapsed by the measurements on the pointlike detectors on different time-slices in different frames, will evolve to the same state of the combined system up to a coordinate transformation when compared on the same final time-slice. Such consistency is guaranteed by the spatial locality of interactions and the general covariance in a relativistic system, together with the spatial locality of measurements and the linearity of quantum dynamics in its quantum theory.
description: 19 pages, 2 figures; Appendix B on nonlinear theories added, typos fixed
Two infinite families of facets of the holographic entropy cone
Creators: name: Czech, Bartlomiej
name: Liu, Yu
name: Yu, Bo
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We verify that the recently proven infinite families of holographic entropy inequalities are maximally tight, i.e. they are facets of the holographic entropy cone. The proof is technical but it offers some heuristic insight. On star graphs, both families of inequalities quantify how concentrated / spread information is with respect to a dihedral symmetry acting on subsystems. In addition, toric inequalities viewed in the K-basis show an interesting interplay between four-party and six-party perfect tensors.
description: 18 pages plus appendices, 8 figures, 18 lemmas. v4: one minor but crucial typo fixed