cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MATHICSE Technical Report : aortic root stresses in presence of stentless and stented aortic valve bio-prostheses
Creators: name: Nestola, M.G.C.
name: Faggiano, Elena
name: Vergara, C.
name: Lancellotti, R.M.
name: Ippolito, S.
name: Filippi, S.
name: Quarteroni, Alfio
name: Scrofani, R.
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We provide a computational comparison of the performance of stentless and stented aortic prostheses, in terms of aortic root displacements and internal stresses. To this aim, we consider three real patients; for each of them we draw the two prostheses configurations, which are characterized by different mechanical properties. Moreover, for each patient, we consider also the native configuration. For each scenario, we solve the fluid-structure interaction problem arising between blood and aortic root, through Finite Elements. The results show a better agreement between stentless and native displacements and stresses, with respect to the stented case.
Additional file 1: of Research trends on human trafficking: a bibliometric analysis using Scopus database
Creators: name: Sweileh, Waleed
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Scheme of the sequence of data extraction and analysis. Number of documents retrieved using Scopus at each step in the search strategy used to obtain the required data. (DOCX 30Â kb)
Robust identification of email tracking: A machine learning approach
Creators: name: Haupt, Johannes
name: Bender, Benedict
name: Fabian, Benjamin
name: Lessmann, Stefan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Email tracking allows email senders to collect fine-grained behavior and location data on email recipients, who are uniquely identifiable via their email address. Such tracking invades user privacy in that email tracking techniques gather data without user consent or awareness. Striving to increase privacy in email communication, this paper develops a detection engine to be the core of a selective tracking blocking mechanism in the form of three contributions. First, a large collection of email newsletters is analyzed to show the wide usage of tracking over different countries, industries and time. Second, we propose a set of features geared towards the identification of tracking images under real-world conditions. Novel features are devised to be computationally feasible and efficient, generalizable and resilient towards changes in tracking infrastructure. Third, we test the predictive power of these features in a benchmarking experiment using a selection of state- of-the-art classifiers to clarify the effectiveness of model-based tracking identification. We evaluate the expected accuracy of the approach on out-of-sample data, over increasing periods of time, and when faced with unknown senders.
description: Accepted publication, In press, European Journal of Operational Research, 2018
Cosmic shear and biasing
Creators: name: Schneider, Peter
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The correlation between cosmic shear as measured by the image distortion of high-redshift galaxies and the number counts of foreground galaxies is calculated. For a given power spectrum of the cosmic density fluctuations, this correlation is proportional to the bias factor, which can thus directly be measured. In addition, this correlation provides a first-order measure of cosmic shear and is therefore easier to observe than quadratic measures hitherto proposed. Analytic approximations show that the expected signal-to-noise ratio of the correlation is large, so that a significant detection is possible with a moderate amount of data; in particular, it is predicted that the ongoing ESO Imaging Survey (EIS) will be able to detect this correlation on scales of $\sim 10'$ at a 3-$σ$ level, and at with higher significance on smaller angular scales.
description: 9 pages, Plain TeX, no figures, submitted to ApJL
BioReCer Stakeholders Factsheet in English, French, Spanish and Italian
Creators: name: nova-Institut GmbH
name: Schwarzenberger, Anke
name: Banduka, Dušica
Publisher: name: Zenodo
Year: 2023

description: This factsheet informs about the background of the BioReCer project, why stakeholder engagement is necessary for the project's success and what are the advantages to join BioReCer's BioResources Stakeholders Platform. It was originally published  in English and then translated by project partners into French (by EGM), Spanish (by EURADIA) and Italian (by Unitelma Sapienza).
Dual Conformable Derivative: Definition, Simple Properties and Perspectives for Applications
Creators: name: Rosa, Wanderson
name: Weberszpil, José
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this communication, one shows that there exists in the literature a certain form of deformed derivative that can here be identified as the dual of conformable derivative. The deformed subtraction is used here, together with the duality concept, as the basic definitions and starting points in order to obtain the connected dual operators. The q-exponential, in the context of generalized statistical mechanics, is the eigenfunction of this dual conformable derivative. The basic properties of the dual deformed-derivatives and also some perspective of applications and simple models are presented. The importance of this deformed derivative for position-dependent models is highlighted. An outlook of potential applications and developments is presented.
description: 10 pages
Chiral fermions, orbifolds, scalars and fat branes
Creators: name: Georgi, Howard
name: Grant, Aaron K.
name: Hailu, Girma
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We note that orbifold boundary conditions that produce chiral fermion zero modes in compactified higher dimensional theories may distort scalar field vacuum expectation values, giving rise to nontrivial dependence on the extra dimensions. We illustrate this in a simple five dimensional model which has chiral fermion zero-modes stuck to fat branes. The model could provide a simple and explicit realization of the separation of quarks and leptons in the fifth dimension. We discuss the KK expansion in some detail. We find that there are in general non-zero-mode states stuck to the brane, like the chiral zero modes. We see explicitly the transition from states dominated by the internal structure of the fat brane to those dominated by the compactification.
description: 16 pages, Latex, revised reference, acknowledgements and a short section on zero-modes near the orbifold fixed-points
Intermediate-Mass Ratio Inspirals in Galactic Nuclei
Creators: name: Fragione, Giacomo
name: Leigh, Nathan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we study the secular dynamical evolution of binaries composed of intermediate-mass and stellar-mass black holes (IMBHs and SBHs, respectively) in orbit about a central super-massive black hole (SMBH) in galactic nuclei. Such BH triplets could form via the inspiral of globular clusters toward galactic nuclei due to dynamical friction, or even major/minor galaxy mergers. We perform, for reasonable initial conditions that we justify, sophisticated $N$-body simulations that include both regularization and Post-Newtonian corrections. We find that mass segregation combined with Kozai-Lidov oscillations induced by the primary SMBH can effectively merge IMBH-SBH binaries on time-scales much shorter than gravitational wave emission alone. Moreover, the rate of such extreme mass ratio inspirals could be high ($\sim 1\ \mathrm{Gpc}^{-3}\ \mathrm{yr}^{-1}$) in the local Universe, but these are expected to be associated with recent GC infall or major/minor mergers, making the observational signatures of such events (e.g., tidal debris) good diagnostics for searching for SMBH-IMBH-SBH mergers. A small fraction could also be associated with tidal disruption events by the IMBH-SBH during inspiral.
description: 8 pages, 5 figures, 1 Table, accepted by MNRAS
Quantization of Floreanini-Jackiw chiral harmonic oscillator
Creators: name: Baleanu, Dumitru
name: Guler, Yurdahan
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Floreanini-Jackiw formulation of the chiral quantum-mechanical system oscillator is a model of constrained theory with only second-class constraints. in the Dirac's classification.The covariant quantization needs infinite number of auxiliary variables and a Wess-Zumino term. In this paper we investigate the path integral quatization of this model using $G\ddot{u}ler's$ canonical formalism. All variables are gauge variables in this formalism. The Siegel's action is obtained using Hamilton-Jacobi formulation of the systems with constraints.
description: 6 pages LaTeX, corrected typos, accepted for publication in Il Nuovo Cimento B
FAIRness and Openness audit framework report
Creators: name: Giglia, Elena
Publisher: name: Zenodo
Year: 2024
Subjects: FAIR
Open Science
framework
audit

description: The report on FAIRness and Openness is the result of the audit conducted on training material produced in PR3 and PR2 in order to strengthen the evidence-based approach adopted by the project and to demonstrate the impact of the CeOS_SE project in the open science framework.
Quantum Rabi Model with Two-Photon Relaxation
Creators: name: Malekakhlagh, Moein
name: Rodriguez, Alejandro W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a cavity-QED setup consisting of a two-level system coupled to a single cavity mode with two-photon relaxation. The system dynamics is modeled via a Lindblad master equation consisting of the Rabi Hamiltonian and a two-photon dissipator. We show that an even-photon relaxation preserves the $Z_2$ symmetry of the Rabi model, and provide a framework to study the corresponding non-Hermitian dynamics in the number-parity basis. We discuss the role of different terms in the two-photon dissipator and show how one can extend existing results for the closed Rabi spectrum to the open case. Furthermore, we characterize the role of the $Z_2$ symmetry in the excitation-relaxation dynamics of the system as a function of light-matter coupling. Importantly, we observe that initial states with even-odd parity manifest qualitatively distinct transient and steady state behaviors, contrary to the Hermitian dynamics that is only sensitive to whether the initial state is parity-invariant. Moreover, the parity-sensitive dynamical behavior is not a creature of ultrastrong coupling and is present even at weak coupling values.
description: 14 pages, 8 figures and 1 table
MATHICSE Technical Report : Improved hybrid/GPU algorithm for solving cardiac electro-physiology problems on Purkinje networks
Creators: name: Lange, M.
name: Palamara, S.
name: Lassila, Toni Mikael
name: Vergara, C.
name: Quarteroni, Alfio
name: Frangi, A.F.
Publisher: name: Écublens, MATHICSE
Year: 2019

description: The cardiac Purkinje fibres provide an important stimulus to the coordinated contraction of the heart. We present a numerical algorithm for the solution of electrophysiology problems on the Purkinje network that is efficient enough to be used on realistic networks with physiologically detailed membrane models. The algorithm is based on operator splitting and is provided with three different implementations: pure CPU, hybrid CPU/GPU, and pure GPU. Compared to our previous work based on the model of Vigmond et al., we modify the explicit gap junction term at network bifurcations in order to improve its mathematical consistency. Due to this improved consistency of the model, we are able to perform a convergence study against analytical solutions and verify that all three implementations produce equivalent convergence rates. Finally, we compare the efficiency of all three implementations on Purkinje networks of increasing spatial resolution using membrane models of increasing complexity. Both hybrid and pure-GPU implementations outperform the pure-CPU implementation, but their relative performance difference depends on the size of the Purkinje network and the complexity of the membrane model used. Copyright c 2015 John Wiley & Sons, Ltd.
MATHICSE Technical Report : Geometric multiscale modeling of the cardiovascular system, between theory and practice
Creators: name: Quarteroni, Alfio
name: Veneziani, Alessandro
name: Vergara, Christian
Publisher: name: Écublens, MATHICSE
Year: 2019

description: This review paper addresses the so called geometric multiscale approach for the numerical simulation of blood flow problems, from its origin (that we can collocate in the second half of ’90s) to our days. By this approach the blood fluid-dynamics in the whole circulatory system is described mathematically by means of heterogeneous problems featuring different degree of detail and different geometric dimension that interact together through appropriate interface coupling conditions. Our review starts with the introduction of the stand-alone problems, namely the 3D fluidstructure interaction problem, its reduced representation by means of 1D models, and the so-called lumped parameters (aka 0D) models, where only the dependence on time survives. We then address specific methods for stand-alone 3D models when the available boundary data are not enough to ensure the mathematical well posedness. These so-called “defective problems” naturally arise in practical applications of clinical relevance but also because of the interface coupling of heterogeneous problems that are generated by the geometric multiscale process. We also describe specific issues related to the boundary treatment of reduced models, particularly relevant to the geometric multiscale coupling. Next, we detail the most popular numerical algorithms for the solution of the coupled problems. Finally, we review some of the most representative works - from different research groups - which addressed the geometric multiscale approach in the past years. A proper treatment of the different scales relevant to the hemodynamics and their interplay is essential for the accuracy of numerical simulations and eventually for their clinical impact. This paper aims at providing a state-of-the-art picture of these topics, where the gap between theory and practice demands rigorous mathematical models to be reliably filled.
Properties Of The Hard X-ray Radiation From The Black Hole Candidates: Cygnus X-1 And 1E1740.7-2942
Creators: name: Kuznetsov, S.
name: Gilfanov, M.
name: Churazov, E.
name: Sunyaev, R.
name: Korel, I.
name: Khavenson, N.
name: Dyachkov, A.
name: Chulkov, I.
name: Ballet, J.
name: Laurent, P.
name: Vargas, M.
name: Goldwurm, A.
name: Roques, J. P.
name: Jourdain, E.
name: Bouchet, L.
name: Borrel, V.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The entire dataset of the GRANAT/SIGMA observations of Cyg X-1 and 1E1740.7-2942 in 1990-1994 was analyzed in order to search for correlations between primary observational characteristics of the hard X-ray (40-200 keV) emission - hard X-ray luminosity, hardness of the spectrum (quantified in terms of the best-fit thermal bremsstrahlung temperature kT) and the RMS of short-term flux variations. Although no strict point-to-point correlations were detected certain general tendencies are evident. It was found that for Cyg X-1 the spectral hardness is in general positively correlated with relative amplitude of short-term variability. The correlation of similar kind was found for X-ray transient GRO J0422+32 (X-ray Nova Persei 1992). For both sources an approximate correlation between kT and L_X was found. At low hard X-ray luminosity - below 10E37 erg/sec - kT increases with L_X. At higher luminosity the spectral hardness depends weaker or does not depend at all on the hard X-ray luminosity. The low luminosity end of these approximate correlations (low kT and low RMS) corresponds to extended episodes of very low hard X-ray flux occurred during SIGMA observations.
description: 6 pages, 7 figures, uses mn.sty, epsf.sty, psfig.tex; Accepted for publication in MNRAS; Also available at http://hea.iki.rssi.ru/~sik/PAPERS/mnras97.ps.gz (gzipped PostScript)
RAISE D3.1 RAI Cloud services' specifications
Creators: name: Hernandez Jimenez, Mikel
name: NIKOLAIDIS, NIKOLAOS
name: Katertsidis, Nikolaos
name: Romas, Ilias
name: Natsos, Dimosthenis
name: Kouris, Yannis
name: Makridou, Ilektra
name: Epelde, Gorka
Publisher: name: Zenodo
Year: 2025

description: This deliverable, which is of report nature as specified in the GA, aims to present the RAISE service specification and federated architecture designed to facilitate the communication and delivery of the ICT tools developed in WP3 and WP4 that compose the RAISE system. 

The primary goal of the designed architecture is to effectively share and manage data across RAI nodes during experiment processing while adhering to privacy, ethics and IPR legislation and policies established by the respective research entities providing processing infrastructure. 

The information presented in this deliverable mainly resulted from Task 2.4 (Service architecture evolution and federated authentication), although its completion relies on contributions from other tasks within WP3 and WP4. 

The structure of the document is as follows. First, the RAISE service is introduced and explained along with its user and technical requirements (Section 1). Then, the architecture of the RAISE service is described, and the interactions between the modules that compose it are detailed (Section 2). Next, the designed and developed workflows and solutions for the RAISE use cases are presented (Section 3). Finally, some concluding remarks for this deliverable are provided in Section 5. 

NOTE: The actual deliverable presents the current design of the RAISE service architecture and some explanations of its current developments. Future integrations are planned to improve the architecture with specified functionalities that are being developed according to the initial planning of the project. While adjustments may be made to the architecture design according to specifications outlined in the GA, no significant changes regarding the general architecture are anticipated. However, if necessary, relevant content within this document will be updated, though such updates are not initially planned.
Self-Duality of Super D3-brane Action on $AdS_{5}\times S^{5}$ Background
Creators: name: Kimura, Tadahiko
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the super D3-brane action on $AdS_5 \times S^5$ background recently constructed by Metsaev and Tseytlin is exactly invariant under the combination of the electric-magnetic duality transformation of the worldvolume gauge field and the SO(2) rotaion of N=2 spinor coordinates. The action is shown to satisfy the Gaillard-Zumino duality condition, which is a necessary and sufficient condition for a action to be self-dual. Our proof needs no gauge fixing for the $κ$-symmetry.
description: 10 pages
Additional file 1 of Modeling the relative role of human mobility, land-use and climate factors on dengue outbreak emergence in Sri Lanka
Creators: name: Zhang, Ying
name: Riera, Jefferson
name: Ostrow, Kayla
name: Siddiqui, Sauleh
name: de Silva, Harendra
name: Sarkar, Sahotra
name: Fernando, Lakkumar
name: Gardner, Lauren
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1.
MATHICSE Technical Report : Large Eddy simulations for blood fluid-dynamics in real stenotic carotids
Creators: name: Lancellotti, Rocco M.
name: Vergara, Christian
name: Valdettaro, Lorenzo
name: Bose, Sanjeeb
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: In this paper, we consider Large Eddy Simulations (LES) for human stenotic carotids in presence of atheromasic plaque. It is well known that in such a pathological condition, transitional effects to turbulence may occur, with relevant clinical implications such as plaque rupture. The first aim of this work is to provide a way to define a Direct Numerical Simulation (DNS). In our context turbulence is not statistically homogeneous isotropic and stationary. We define mesh size and time step by considering the reduced model of a 2D shear layer. Then, we compare the performance of LES ¾ model (both static and dynamic) and of mixed LES models (where also a similarity model is considered) with that of DNS in a realistic scenario of a carotid. The results highlight the effectiveness of the LES ¾ models in terms of accuracy, especially for the static model.
Additional file 3: of Dissection of the molecular bases of genotype x environment interactions: a study of phenotypic plasticity of Saccharomyces cerevisiae in grape juices
Creators: name: Peltier, Emilien
name: Sharma, Vikas
name: Raga, Maria MartĂ­
name: Roncoroni, Miguel
name: Bernard, Margaux
name: Jiranek, Vladimir
name: Gibon, Yves
name: Marullo, Philippe
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Figure S1. Meiosis emphases phenotypic novelty. Panel A. PCA of winemaking properties of M2xF15 and SBxGN progenies and 31 CWS in M15. Panel B. Correlation circle indicating the correlation of the variables for axes 1 and 2. Panel C. Average phenotypic distance computed from M15 condition for CWS, and the two M2xF15 and SBxGN cross. (PDF 455 kb)
MATHICSE Technical Report : Spectral based discontinuous Galerkin reduced basis element method for parametrized Stokes problems
Creators: name: Pacciarini, Paolo
name: Gervasio, Paola
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: In this work we extend to the Stokes problem the Discontinuous Galerkin Reduced Basis Element (DGRBE) method introduced in [1]. By this method we aim at reducing the computational cost for the approximation of a parametrized Stokes problem on a domain partitioned into subdomains. During an offline stage, expensive but performed only once, a low-dimensional approximation space is built on each subdomain. For any new value of the parameter, the rapid evaluation of the solution takes place during the online stage and consists in a Galerkin projection onto the low-dimensional subspaces computed offline. The high-fidelity discretization on each subdomain, used to build the local low-dimensional subspaces, is based on spectral element methods. The continuity of both the velocity and the normal component of the Cauchy stress tensor at subdomain interfaces is weakly enforced by a discontinuous Galerkin approach.
Quantum Corrections and the de Sitter Swampland Conjecture
Creators: name: Dasgupta, Keshav
name: Emelin, Maxim
name: McDonough, Evan
name: Tatar, Radu
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently a swampland criterion has been proposed that rules out de Sitter vacua in string theory. Such a criterion should hold at all points in the field space and especially at points where the system is on-shell. However there has not been any attempt to examine the swampland criterion against explicit equations of motion. In this paper we study four-dimensional de Sitter and quasi-de Sitter solutions using dimensionally reduced M-theory. While on one hand all classical sources that could allow for solutions with de Sitter isometries are ruled out, the quantum corrections, on the other hand, are found to allow for de Sitter solutions provided certain constraints are satisfied. A careful study however shows that generically such a constrained system does not allow for an effective field theory description in four-dimensions. Nevertheless, if some hierarchies between the various quantum pieces could be found, certain solutions with an effective field theory description might exist. Such hierarchies appear once some mild time dependence is switched on, in which case certain quasi-de Sitter solutions may be found without a violation of the swampland criterion.
description: 41 pages, 1 figure, LaTex; v2: Typos corrected and references added; v3: Quantum effects further elaborated and a new table added, typos corrected and references added; v4: Typos corrected and some discussions added. The published version in JHEP is slightly abridged by the removal of section 2 where the swampland criteria were summarized
MATHICSE Technical Report : Isogeometric analysis of geometric partial differential equations
Creators: name: Bartezzaghi, Andrea
name: Dede', Luca
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We consider the numerical approximation of geometric Partial Differential Equations (PDEs) defined on surfaces in the 3D space. In particular, we focus on the geometric PDEs deriving from the minimization of an energy functional by L2-gradient ow. We analyze two energy functionals: the area, which leads to the mean curvature ow, a nonlinear second order PDE, and the Willmore energy, leading to the Willmore ow, a nonlinear fourth order PDE. We consider surfaces represented by single-patch NURBS and discretize the PDEs by means of NURBS-based Isogeometric Analysis in the framework of the Galerkin method. To approximate the high order geometric PDEs we use high order continuous NURBS basis functions. Instead, for the time discretization of the nonlinear geometric PDEs, we use Backward Differentiation Formulas (BDF) with extrapolation of the geometric quantities involved in the weak formulation of the problem; in this manner, we solve a linear problem at each time step. We report numerical results concerning the mean curvature and Willmore ows on different geometries of interest and we show the accuracy and efficiency of the proposed approximation scheme.
MATHICSE Technical Report : Structure-preserving low multilinear rank approximation of antisymmetric tensors
Creators: name: Kovač, Erna Begović
name: Kressner, Daniel
Publisher: name: Écublens, MATHICSE
Year: 2019

description: This paper is concerned with low multilinear rank approximations to antisymmetric tensors, that is, multivariate arrays for which the entries change sign when permuting pairs of indices. We show which ranks can be attained by an antisymmetric tensor and discuss the adaption of existing approximation algorithms to preserve antisymmetry, most notably a Jacobi algorithm. Particular attention is paid to the important special case when choosing the rank equal to the order of the tensor. It is shown that this case can be addressed with an unstructured rank-1 approximation. This allows for the straightforward application of the higher-order power method, for which we discuss effective initialization strategies.
Report on Vision Building Workshops for SE Europe
Creators: name: Vrčon, Andrej
Publisher: name: Zenodo
Year: 2024
Subjects: Citizen Science
Open Science
Workshop

description: This document outlines two online vision-building workshops involving CeOS stakeholders on April 18 and May 21, 2024. The results of both workshops will help create a CeOS vision for the Southeast European region.
Surface Mixing by Geostrophic Flows in the Bay of Bengal
Creators: name: Paul, Nihar
name: Sukhatme, Jai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Mixing in the Bay of Bengal, driven by altimetry derived daily geostrophic surface currents, is studied on subseasonal timescales. Hovm{ö}ller and wavenumber-frequency diagrams with power spectra confirm the multiscale nature of the flow. Advection of bands immediately brings out the chaotic nature of mixing in the Bay via repeated straining and filamentation of the tracer field. A principal finding is that mixing is local, i.e., of the scale of the eddies, and does not span the entire basin. Indeed, Finite Time Lyapunov Exponent (FTLE), Relative Dispersion (RD) and Finite Size Lyapunov Exponents (FSLE) maps in all seasons are patchy with minima scattered through the interior of the Bay. Non-uniform stirring of the Bay is reflected in long tailed histograms of FTLEs, that become more stretched for longer time intervals. Quantitatively, advection for a week shows the mean FTLE lies near 0.15-0.16 $day^{-1}$, while extremes reach almost 0.5 $day^{-1}$. Averaged over the Bay, RD initially grows exponentially, this is followed by a power-law at scales between approximately 100 and 250 $km$, which finally transitions to an eddy-diffusive regime. These findings are confirmed by FSLEs; in addition, below 250 $km$, a scale dependent diffusion coefficient is extracted, while above 250 $km$, eddy-diffusivities range from $6 \times 10^3$ - $10^4$ $m^2/s$. Finally, with satellite salinity data, these Lagrangian tools are used in the analysis a single post-monsoonal fresh water mixing event. Here, FTLEs and FSLEs allow the identification of transport barriers, and elucidate how eddies help preserve the identity of fresh water.
description: 21 pages, 13 figures, Submitted to Journal of Geophysical Research: Oceans
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Cart. 193 (11 H 78), f. 0165r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0165r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0165r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
MATHICSE Technical Report : Multigrid methods combined with low-rank approximation for tensor structured Markov chains
Creators: name: Bolten, Matthias
name: Kahl, Karsten
name: Kressner, Daniel
name: Santos Paredes Quartin de Macedo, Francisco
name: Sokolović, Sonja
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Markov chains that describe interacting subsystems suffer, on the one hand, from state space explosion but lead, on the other hand, to highly structured matrices. In this work, we propose a novel tensor-based algorithm to address such tensor structured Markov chains. Our algorithm combines a tensorized multigrid method with AMEn, an optimization-based low-rank tensor solver, for addressing coarse grid problems. Numerical experiments demonstrate that this combination overcomes the limitations incurred when using each of the two methods individually. As a consequence, Markov chain models of unprecedented size from a variety of applications can be addressed.
Hamilton-Jacobi quantization of the finite dimensional systems with constraints
Creators: name: Baleanu, Dumitru
name: Guler, Yurdahan
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Hamiltonian treatment of constrained systems in $G\ddot{u}ler's$ formalism leads us to the total differential equations in many variables. These equations are integrable if the corresponding system of partial differential equations is a Jacobi system. The main aim of this paper is to investigate the quantization of the finite dimensional systems with constraints using the canonical formalism introduced by $G\ddot{u}ler$. This approach is applied for two systems with constraints and the results are in agreement with those obtained by Dirac's canonical quatization method and path integral quantization method.
description: 7 pages LaTeX, corrected typos
The Effect of Weak Lensing on the Angular Correlation Function of Faint Galaxies
Creators: name: Moessner, R.
name: Jain, B.
name: Villumsen, J. V.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The angular correlation function \wth of faint galaxies is affected both by nonlinear gravitational evolution and by magnification bias due to gravitational lensing. We compute the resulting \wth for different cosmological models and show how its shape and redshift evolution depend on Ωand Λ. For galaxies at redshift greater than 1 (R magnitude fainter than about 24), magnification bias can significantly enhance or suppress \wth, depending on the slope of the number-magnitude relation. We show for example how it changes the ratio of \wth for two galaxy samples with different number-count slopes.
description: 9 pages, including 5 figures, Latex; accepted for publication in MNRAS
title: Surface charge density and induced currents by self-charging sliding drops
Creators: name: Bista, Pravash
name: Ratschow, Aaron D.
name: Stetten, Amy Z.
name: Butt, Hans-Jürgen
name: Weber, Stefan A.L.
Publisher: name: The Royal Society of Chemistry
Year: 2025

description: Spontaneous charge separation in drops sliding over a hydrophobized insulator surface is a well-known phenomenon and lots of efforts have been made to utilize this effect for energy harvesting. For maximizing the efficiency of such devices, a comprehensive understanding of the dewetted surface charge would be required to quantitatively predict the electric current signals, in particular for drop sequences. Here, we use a method based on mirror charge detection to locally measure the surface charge density after drops move over a hydrophobic surface. For this purpose, we position a metal electrode beneath the hydrophobic substrate to measure the capacitive current induced by the moving drop. Furthermore, we investigate drop-induced charging on different dielectric surfaces together with the surface neutralization processes. The surface neutralizes over a characteristic time, which is influenced by the substrate and the surrounding environment. We present an analytical model that describes the slide electrification using measurable parameters such as the surface charge density and its neutralization time. Understanding the model parameters and refining them will enable a targeted optimization of the efficiency in solid–liquid charge separation.
The Circumnuclear Material in the Galactic Centre: A Clue to the Accretion Process
Creators: name: Sanders, R. H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On the basis of ``sticky particle'' calculations, it is argued that the gas features observed within 10 pc of the Galactic Centre-- the circumnuclear disk (CND) and the ionized gas filaments-- as well as the newly formed stars in the inner one parsec can be understood in terms of tidal capture and disruption of gas clouds on low angular momentum orbits in a potential containing a point mass. The calculations demonstrate that a dissipative component forms a ``dispersion ring'', an asymmetric elliptical torus precessing counter to the direction of rotation, and that this shape can be maintained for many orbital periods. For a range of plausible initial conditions, such a sturcture can explain the morphology and kinematics of the CND and of the most conspicuous ionized filament. While forming the dispersion ring, a small cloud with low specific angular momentum is drawn into a long filament which repeatedly collides with itself at high velocity. The compression in strong shocks is likely to lead to star formation even in the near tidal field of the point mass. This process may have general relevance to accretion onto massive black holes in normal and active galactic nuclei.
description: 10 pg text, 14 figures, LaTex, mn.sty, accepted MNRAS
Determination of alpha_s from F_2^p at HERA
Creators: name: Ball, R. D.
name: Forte, S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the proton structure function F_2^p at small x and large Q^2 at next-to-leading order in alpha_s(Q^2), including summations of all leading and subleading logarithms of Q^2 and 1/x in a way consistent with momentum conservation. We perform a detailed comparison to the 1993 HERA data, and show that they may be used to determine alpha_s(M_Z^2)=0.120 pm 0.005(exp) pm 0.009(th). The theoretical error is dominated by the renormalization and factorization scheme ambiguities.
description: 24 pages, TeX with harvmac and epsf, 10 figures in compressed postscript. Final (published) version
Additional file 4 of Poly-γ-glutamic acid promoted maize root development by affecting auxin signaling pathway and the abundance and diversity of rhizosphere microbial community
Creators: name: Ma, Haizhen
name: Li, Panpan
name: Xiao, Ning
name: Xia, Tao
Publisher: name: figshare
Year: 2022
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 4: Fig. S4. The NMDS and LEfSe analysis for the species in the rhizosphere soil of the different treatment. A, Non-metric multidimensional scaling (NMDS) for the grouping patterns of microbial communities based on the bray-curtis distance. Each colored dot represented a sample. B, LEfSe analysis (LDA ≥ 3.73) for the species in the rhizosphere soil of the control maize (CK) and the maize treated with γ-PGA (CK-γ-PGA) on the normal growth condition, and the control maize (CK-D) and the maize treated with γ-PGA (CK-γ-PGA-D) after drought treatment.
Development of FEB Configuration Test Board for ATLAS NSW Upgrade
Creators: name: Lu, Houbing
name: Li, Feng
name: Miao, Peng
name: Hu, Kun
name: Zhang, Zhilei
name: Sun, Rongqi
name: Ma, Qingli
name: Jin, Ge
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Hardware Architecture (cs.AR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The FEB(front end board) configuration test board is developed aiming at meeting the requirement of testing the new generation ASIC(application-specific integrated circuit) chips and its configuration system for ATLAS NSW(New Small Wheel) upgrade, In this paper, some functions are developed in terms of the configurations of the key chips on the FEB, VMM3 and TDS2 using GBT-SCA. Additionally, a flexible communication protocol is designed, verifying the whole data link. It provides technical reference for prototype FEB key chip configuration and data readout, as well as the final system configuration.
MATHICSE Technical Report : A novel iterative method to approximate structured singular values
Creators: name: Guglielmi, Nicola
name: Rehman, Mutti-Ur
name: Kressner, Daniel
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A novel method for approximating structured singular values (also known as $\mu$- values) is proposed and investigated. These quantities constitute an important tool in the stability analysis of uncertain linear control systems as well as in structured eigenvalue perturbation theory. Our approach consists of an inner-outer iteration. In the outer iteration, a Newton method is used to adjust the perturbation level. The inner iteration solves a gradient system associated with an optimization problem on the manifold induced by the structure. Numerical results and comparison with the well-known Matlab function mussv, implemented in the Matlab Control Toolbox, illustrate the behavior of the method.
Reconfiguration of Satisfying Assignments and Subset Sums: Easy to Find, Hard to Connect
Creators: name: Cardinal, Jean
name: Demaine, Erik D.
name: Eppstein, David
name: Hearn, Robert A.
name: Winslow, Andrew
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We consider the computational complexity of reconfiguration problems, in which one is given two combinatorial configurations satisfying some constraints, and is asked to transform one into the other using elementary transformations, while satisfying the constraints at all times. Such problems appear naturally in many contexts, such as model checking, motion planning, enumeration and sampling, and recreational mathematics. We provide hardness results for problems in this family, in which the constraints and operations are particularly simple. More precisely, we prove the PSPACE-completeness of the following decision problems: $\bullet$ Given two satisfying assignments to a planar monotone instance of Not-All-Equal 3-SAT, can one assignment be transformed into the other by single variable `flips' (assignment changes), preserving satisfiability at every step? $\bullet$ Given two subsets of a set S of integers with the same sum, can one subset be transformed into the other by adding or removing at most three elements of S at a time, such that the intermediate subsets also have the same sum? $\bullet$ Given two points in $\{0,1\}^n$ contained in a polytope P specified by a constant number of linear inequalities, is there a path in the n-hypercube connecting the two points and contained in P? These problems can be interpreted as reconfiguration analogues of standard problems in NP. Interestingly, the instances of the NP problems that appear as input to the reconfiguration problems in our reductions can be shown to lie in P. In particular, the elements of S and the coefficients of the inequalities defining P can be restricted to have logarithmic bit-length.
description: An abstract version will appear in COCOON 2018
Neutrino scattering and B anomalies from hidden sector portals
Creators: name: Datta, Alakabha
name: Dutta, Bhaskar
name: Liao, Shu
name: Marfatia, Danny
name: Strigari, Louis E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine current constraints on and the future sensitivity to the strength of couplings between quarks and neutrinos in the presence of a form factor generated from loop effects of hidden sector particles that interact with quarks via new interactions. We consider models associated with either vector or scalar interactions of quarks and leptons generated by hidden sector dynamics. We study constraints on these models using data from coherent elastic neutrino-nucleus scattering and solar neutrino experiments and demonstrate how these new interactions may be discovered by utilizing the recoil spectra. We show that our framework can be naturally extended to explain the lepton universality violating neutral current B decay anomalies, and that in a model framework the constraints from neutrino scattering can have implications for these anomalies.
Flood risk modelling by the synergistic approach of machine learning and best-worst method in Indus Kohistan, Western Himalaya
Creators: name: Ahmad, Ashfaq
name: Chen, Jiangang
name: Chen, Xiaoqing
name: Khadka, Nitesh
name: Khan, Muhib Ullah
name: Wang, Chenyuan
name: Tayyab, Muhammad
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: Flood risk mapping is essential for effective mitigation and planning. In this study, we propose a novel synergistic approach for flood risk mapping in Indus Kohistan, Pakistan, by integrating machine learning (ML) models and the best-worst method (BWM). Flood hazard assessment was carried out using random forest (RF) and extreme gradient boosting (XGBoost), while flood vulnerability was evaluated through BWM. The supporting data comprised 415 flood points, 13 flood hazard factors, and 6 flood vulnerability indicators. The RF model outperformed XGBoost, achieving an area under the curve (AUC) of 0.99, compared to 0.98 for XGBoost. Ultimately, the RF model was utilized to generate the flood hazard map. Distance to streams and elevation are key drivers of flood hazard, with relative importance values of 0.43 and 0.19, respectively. Meanwhile, population density and household density have the highest impact on flood vulnerability, contributing 40.2% and 24.7%, respectively. The flood risk map reveals that 1.4%, 4.6%, 9%, 18.4%, and 65.9% of the total land are categorized as very high-risk, high-risk, medium-risk, low-risk, and very low-risk, respectively. The proposed methodology and flood risk map results can be valuable for identifying priority measures for flood risk reduction and management.
MATHICSE Technical Report : An online intrinsic stabilization strategy for the reduced basis approximation of parametrized advection-dominated problems
Creators: name: Maday, Yvon
name: Manzoni, Andrea
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We propose a new, black-box online stabilization strategy for reduced basis (RB) approx- imations of parameter-dependent advection-diffusion problems in the advection-dominated case. Our goal is to stabilize the RB problem irrespectively of the stabilization (if any) op- erated on the high-fidelity (e.g. finite element) approximation, provided a set of stable RB functions have been computed. Inspired by the spectral vanishing viscosity method, our ap- proach relies on the transformation of the basis functions into of modal basis, then on the addition of a vanishing viscosity term over the high RB modes, and on a rectification stage { prompted by the spectral filtering technique { to further enhance the accuracy of the RB approximation. Numerical results dealing with an advection-dominated problem parametrized with respect to the diffusion coefficient show the accuracy of the RB solution on the whole parametric range.