cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inconsistency thresholds for incomplete pairwise comparison matrices
Creators: name: Ágoston, Kolos Csaba
name: Csató, László
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: Artificial Intelligence (cs.AI)
subject: Optimization and Control (math.OC)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90B50, 91B08

description: Pairwise comparison matrices are increasingly used in settings where some pairs are missing. However, there exist few inconsistency indices for similar incomplete data sets and no reasonable measure has an associated threshold. This paper generalises the famous rule of thumb for the acceptable level of inconsistency, proposed by Saaty, to incomplete pairwise comparison matrices. The extension is based on choosing the missing elements such that the maximal eigenvalue of the incomplete matrix is minimised. Consequently, the well-established values of the random index cannot be adopted: the inconsistency of random matrices is found to be the function of matrix size and the number of missing elements, with a nearly linear dependence in the case of the latter variable. Our results can be directly built into decision-making software and used by practitioners as a statistical criterion for accepting or rejecting an incomplete pairwise comparison matrix.
description: 16 pages, 3 figures, 4 tables
Σανατόριο Ασβεστοχωρίου (1920 – 1945) Σχέσεις ασθενών και κοινωνίας
Creators: name: Καλλιαρέκος, Ιωάννης Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: φυματίωση
Ασβεστοχώρι
σανατόριο
tubesculosis
Asvestohori
sanatorium

description: Το Σανατόριο Ασβεστοχωρίου, μέρος της ιστορίας της υγείας και της υγιεινής της Θεσσαλονίκης, αποτελεί φαινόμενο μοναδικό όχι μόνο στον Ελλαδικό χώρο αλλά και ευρύτερα: Η περίπτωση της ίδρυσης του Συνοικισμού των Φυματιώντων έξω από τον περίβολο του Σανατορίου και η σχέση του δίπολου που αναπτύσσουν μεταξύ τους, μια και επικοινωνούν σαν συγκοινωνούντα δοχεία, και αφού οι πρώην ασθενείς, όσοι επιβιώνουν, γίνονται οι υπάλληλοι του Σανατορίου, καθιστούν την περίπτωση του ιδρύματος μοναδική και ιδιαίτερα ελκυστική για τον ερευνητή. Η παρουσίαση των κτιρίων με τις προσπάθειες ανέγερσης τους αποτυπώνει ανάγλυφα τις κοινωνικές, επαγγελματικές ομάδες που ενεργοποιήθηκαν για την αντιμετώπιση της φυματίωσης. Οι κοινωνικές ή επαγγελματικές ομάδες που αναλαμβάνουν την πρωτοβουλία είναι φανερό ότι είναι οι ομάδες που κατά κύριο λόγο πλήττονται από την ασθένεια. Οι πληροφορίες για την καθημερινότητα των ασθενών, ανασυστήνουν το πορτραίτου τους στο χρόνο και επιτρέπουν να αντιληφθεί ο αναγνώστης τις σχέσεις με τους κατοίκους της γύρω περιοχής, την ευρύτερη κοινωνία αλλά και τη στενή διασύνδεση με τον Συνοικισμό των φυματιώντων, τη Φυματιούπολη.
description: As part of the history of health and hygiene of Thessaloniki, the Sanatorium of Asvestchori is considered to be uniquely phenomenal not only for Greek regions, but for others as well. The established Tubercle Community on the precincts of the Sanatorium and the relations developed from their interaction renders the institution a quite interesting and alluring case study for observers; that is because the individuals who have survived sanitization become committed to the Sanitarium as employees. The display of the buildings and the efforts for their erection vividly illustrates the actions taken from the social, working groups in order to tackle tuberculosis. These social or working groups that take a stand are mainly groups that are apparently devastated from the disease. The pieces of information regarding the daily life of the patients restore their portrayal in time and allow the reader to perceive the social relations of them with the residents of the neighboring area, with the rest of the society as well as their close association with the Tubercle Community, aka Tuberculopolis.
Destination exoplanet: Habitability conditions influenced by stellar winds properties
Creators: name: Chebly, Judy J.
name: Alvarado-Gómez, Julián D.
name: Poppenhaeger, Katja
Publisher: name: Zenodo
Year: 2021
Subjects: Cool stars
Stellar wind
Solar model
Exoplanet
Habitability
Planet atmosphere
MHD
Magnetic activity
Rotation evolution
Star
SWMF
Magnetic field geometry
Magnetic field distribution
Star-Planet interaction
Stellar rotation
Alfvén surface
Grid model
Astrophysics
Mass loss
Angular momentum loss
Outflow
Flares
Spherical Harmonics

description: The most abundant stars in the universe - cool stars - have stellar winds. The importance of these magnetized winds is not confined to one area of study, it spans regulating processes in astrophysics such as magnetic activity and rotational evolution of stars to processes shaping exoplanet atmospheres. We are using one of the most detailed solar models that exist to date (the Space Weather Modelling Framework) and apply it to stellar winds. In this preliminary study we focus on how the magnetic field geometry affects the stellar wind properties to better understand star-planet interaction. In order to fulfill this objective, we are creating a comprehensive grid of numerical models by varying different parameters, among them the stellar rotation period, magnetic field strength, and the field geometry. Here we show results from the variation of the magnetic field geometry and strength. We find that the Alfvén surface is larger for stronger and less complex fields, and the wind speed increases for stronger magnetic fields. For further investigation, we will continue exploring the grid of parameters with the ultimate goal of putting constraints on planetary habitability.
description: {"references": ["Cohen, O.; Drake, J. J. (2014). A Grid of MHD Models for Stellar Mass Loss and Spin-down Rates of Solar Analogs to arXiv:1309.5953", "Gombosi, Tamas I.; van der Holst, Bart; Manchester, Ward B.; Sokolov, Igor V. (2018). Extended MHD modeling of the steady solar corona and the solar wind to arXiv:1807.00417", "Garraffo, Cecilia; Drake, Jeremy J.; Cohen, Ofer (2015). Magnetic Complexity as an Explanation for Bimodal Rotation Populations among Young Stars to arXiv:1506.01713", "Alvarado-G\u00f3mez, J. D.; Hussain, G. A. J.; Cohen, O.; Drake, J. J.; Garraffo, C.; Grunhut, J.; Gombosi, T. I. (2016). Simulating the environment around planet-hosting stars. II. Stellar winds and inner astrospheres to arXiv:1607.08405", "Vidotto, A. A.; Gregory, S. G.; Jardine, M.; Donati, J. F.; Petit, P.; Morin, J.; Folsom, C. P., (2014). Stellar magnetism: empirical trends with age and rotation to arXiv:1404.2733"]}
Search for Diffuse Astrophysical Neutrino Flux Using Ultra-High-Energy Upward-Going Muons in Super-Kamiokande I
Creators: name: Kamiokande Collaboration
name: Swanson, M. E. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extra-galactic sources. At muon energies above 1 TeV, the upward-going muon flux induced by neutrinos from active galactic nuclei is expected to exceed the flux due to atmospheric neutrinos. We have performed a search for this astrophysical neutrino flux by looking for upward-going muons in the highest energy data sample from the Super-Kamiokande detector using 1679.6 live days of data. We found one extremely high energy upward-going muon event, compared with an expected atmospheric neutrino background of 0.46 plus or minus 0.23 events. Using this result, we set an upper limit on the diffuse flux of upward-going muons due to neutrinos from astrophysical sources in the muon energy range 3.16-100 TeV.
description: 10 pages, 6 figures, minor changes to match version published in ApJ
Pathogenesis, Symptomatology, and Transmission of SARS-CoV-2 through Analysis of Viral Genomics and Structure
Creators: name: Rando, Halie M.
name: MacLean, Adam L.
name: Lee, Alexandra J.
name: Lordan, Ronan
name: Ray, Sandipan
name: Bansal, Vikas
name: Skelly, Ashwin N.
name: Sell, Elizabeth
name: Dziak, John J.
name: Shinholster, Lamonica
name: McGowan, Lucy D'Agostino
name: Guebila, Marouen Ben
name: Wellhausen, Nils
name: Knyazev, Sergey
name: Boca, Simina M.
name: Capone, Stephen
name: Qi, Yanjun
name: Park, YoSon
name: Sun, Yuchen
name: Mai, David
name: Boerckel, Joel D.
name: Brueffer, Christian
name: Byrd, James Brian
name: Kamil, Jeremy P.
name: Wang, Jinhui
name: Velazquez, Ryan
name: Szeto, Gregory L
name: Barton, John P.
name: Goel, Rishi Raj
name: Mangul, Serghei
name: Lubiana, Tiago
name: Consortium, COVID-19 Review
name: Gitter, Anthony
name: Greene, Casey S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The novel coronavirus SARS-CoV-2, which emerged in late 2019, has since spread around the world and infected hundreds of millions of people with coronavirus disease 2019 (COVID-19). While this viral species was unknown prior to January 2020, its similarity to other coronaviruses that infect humans has allowed for rapid insight into the mechanisms that it uses to infect human hosts, as well as the ways in which the human immune system can respond. Here, we contextualize SARS-CoV-2 among other coronaviruses and identify what is known and what can be inferred about its behavior once inside a human host. Because the genomic content of coronaviruses, which specifies the virus's structure, is highly conserved, early genomic analysis provided a significant head start in predicting viral pathogenesis and in understanding potential differences among variants. The pathogenesis of the virus offers insights into symptomatology, transmission, and individual susceptibility. Additionally, prior research into interactions between the human immune system and coronaviruses has identified how these viruses can evade the immune system's protective mechanisms. We also explore systems-level research into the regulatory and proteomic effects of SARS-CoV-2 infection and the immune response. Understanding the structure and behavior of the virus serves to contextualize the many facets of the COVID-19 pandemic and can influence efforts to control the virus and treat the disease.
Wide-band optical field concentrator for low-index core propagation
Creators: name: de Ceglia, D.
name: De Sario, M.
name: D'Orazio, A.
name: Petruzzelli, V.
name: Vincenti, M. A.
name: Prudenzano, F.
name: Scalora, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a novel chirped structure consisting of a low index polymer core bounded by modulated multilayer claddings, to realize an optical field concentrator with virtually zero propagation losses in a wide spectral range, independent of wave polarization. In spite of the absence of the total internal reflection mechanism, properly designed multilayer claddings ensure the achievement of unitary transmittance in a wide spectral range, including the widely used wavelengths for optical communications. Several cladding geometries obtained by varying the thicknesses of the cladding layers are reported and discussed.
description: submitted to the Journal of the European Optical Society
Υλοποίηση συστήματος σύνθεσης μουσικού σήματος σε FPGA:
Creators: name: Πορλιδάς, Δημήτριος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Κυματομορφές
Γεννήτρια
Σύνθεση
Waveform
Synthesizer
FPGA

description: Μια σύνθετη κυματομορφή είναι δυνατό να αναλυθεί και να περιγραφεί με πιο απλό τρόπο, ώστε να είναι δυνατή η επεξεργασία της αλλά και η αναπαραγωγή της. Η Ανάλυση Φουριέ είναι μια μέθοδος που μας δίνει αυτή τη δυνατότητα, αθροίζοντας απειροσειρές ημιτονικών και συνημιτονικών συναρτήσεων. Με τη βοήθεια της Ανάλυσης Φουριέ και με κατάλληλες ηλεκτρονικές διατάξεις, όπως οι γεννήτριες κυματομορφών, είναι δυνατό να απεικονιστεί η κυματομορφή με τη μορφή ηλεκτρικού σήματος. Μια γεννήτρια κυματομορφών είναι δυνατό να υλοποιηθεί σε ένα FPGA. Τα FPGA είναι ολοκληρωμένα κυκλώματα, τα οποία έχουν τη δυνατότητα να παραμετροποιηθούν με κατάλληλο προγραμματισμό και να συμπεριφερθούν σαν οποιοδήποτε σχεδόν ψηφιακό κύκλωμα ή διάταξη. Ο ήχος των μουσικών οργάνων έχει τα χαρακτηριστικά σύνθετων κυματομορφών. Είναι δυνατό να γίνει ανάλυση των ήχων αυτών σε σειρές ημιτονικών συναρτήσεων και με τη βοήθεια της γεννήτριας κυματομορφών να υλοποιηθεί ένα σύστημα σύνθεσης μουσικού σήματος, ώστε να αναπαράγει παρόμοιους ήχους και να προσομοιώνει διάφορα όργανα. Στη συνέχεια περιγράφεται η μέθοδος υλοποίησης ενός συστήματος σύνθεσης μουσικού σήματος σε FPGA και παρουσιάζονται τα αποτελέσματα.
description: A composite waveform can be analyzed and described in a simpler way that can be processed and reproduced. The Fourier Analysis is a method that gives us this possibility by summing infinite series of sine and cosine functions. With Fourier analysis and by suitable electronic devices, such as waveform generators, it is possible to represent a waveform in the form of electrical signal. A waveform generator can be implemented in an FPGA. The FPGAs are integrated circuits, that have the ability to parameterized with programming and behave like almost any digital circuit or device. The sound of musical instruments has the characteristics of complex waveforms. It is possible to analyze these sounds into series of sinusoidal functions, and using a waveform generator to implement a music signal synthesizer, in order to reproduce similar sounds and simulates various musical organs. The following describes the method of implementation of a music signal synthesizer in FPGA and the results presented.
SIGAME v3: Gas Fragmentation in Post-processing of Cosmological Simulations for More Accurate Infrared Line Emission Modeling
Creators: name: Olsen, Karen Pardos
name: Burkhart, Blakesley
name: Mac Low, Mordecai-Mark
name: Treß, Robin G.
name: Greve, Thomas R.
name: Vizgan, David
name: Motka, Jay
name: Borrow, Josh
name: Popping, Gergö
name: Davé, Romeel
name: Smith, Rowan J.
name: Narayanan, Desika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an update to the framework called SImulator of GAlaxy Millimeter/submillimeter Emission (SÍGAME). SÍGAME derives line emission in the far-infrared (FIR) for galaxies in particle-based cosmological hydrodynamics simulations by applying radiative transfer and physics recipes via a post-processing step after completion of the simulation. In this version, a new technique is developed to model higher gas densities by parametrizing the gas density probability distribution function (PDF) in higher resolution simulations for use as a look-up table, allowing for more adaptive PDFs than in previous work. SÍGAME v3 is tested on redshift z = 0 galaxies drawn from the SIMBA cosmological simulation for eight FIR emission lines tracing vastly different interstellar medium phases. Including dust radiative transfer with SKIRT and high resolution photo-ionization models with Cloudy, this new method is able to self-consistently reproduce observed relations between line luminosity and star formation rate in all cases, except for [NII]122, [NII]205 and [OI]63, the luminosities of which are overestimated by median factors of 1.6, 1.2 and 1.2 dex, respectively. We attribute the remaining disagreement with observations to the lack of precise attenuation of the interstellar light on subgrid scales (<200 pc).
description: 31 pages, 15 figures. Accepted for publication in ApJ
Tracking the orbit of unresolved subhalos for semi-analytic models
Creators: name: Delfino, Facundo M.
name: Scoccola, Claudia G.
name: Cora, Sofia A.
name: Vega-Martinez, Cristian A.
name: Gargiulo, Ignacio D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a model to track the orbital evolution of "unresolved subhaloes" (USHs) in cosmological simulations. USHs are subhaloes that are no longer distinguished by halo finders as self-bound overdensities within their larger host system due to limited mass resolution. These subhaloes would host "orphan galaxies" in semi-analytic models of galaxy formation and evolution (SAMs). Predicting the evolution of the phase-space components of USHs is crucial for the adequate modelling of environmental processes, interactions and mergers implemented in SAMs that affect the baryonic properties of orphan satellites. Our model takes into account dynamical friction drag, mass loss by tidal stripping and merger with the host halo, involving three free parameters. To calibrate this model, we consider two DM-only simulations of different mass resolution (MultiDark simulations). The simulation with higher-mass resolution ({\sc smdpl}; $ m_{\rm DM} = 9.6 \times 10^7 ~ h^{-1}\,\mathrm{M_{\odot}}$) provides information about subhaloes that are not resolved in the lower-mass resolution one ({\sc mdpl2}; $ m_{\rm DM} = 1.5 \times 10^9 ~ h^{-1}\,\mathrm{M_{\odot}}$); the orbit of those USHs is tracked by our model. We use as constraining functions the subhalo mass function (SHMF) and the two-point correlation function (2PCF) obtained from {\sc smdpl}, being the latter a novel aspect of our approach. While the SHMF fails to put tight constraints on the efficiency of dynamical friction and the merger condition, the addition of clustering information helps to specify the parameters of the model related to the spatial distribution of subhaloes. Our model allows to achieve good convergence between the results of simulations of different mass resolution, with a precision better than 10 per cent for both SHMF and 2PCF.
description: 21 pages, 9 figures. Replaced to match the version accepted by MNRAS
Supraleitende Einzelphotonenzähler: Optimierung der Zeitauflösung und Anwendungsbeispiele aus der Spektroskopie
Creators: name: Brandel, Julia
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: SNSPD
Supraleitender Einzelphotonenzähler
Zeitauflösung
Spektroskopie
Raman-Spektroskopie
superconducting nanowire single-photon detector
temporal resolution
spectroscopy
raman-spectroscopy

description: SNSPD sind aufgrund ihrer Einzelphotonenempfindlichkeit und hohen zeitlichen Auflösung interessant für den Einsatz in der Spektroskopie. Bei der Raman-Spektroskopie tritt häufig Fluoreszenz auf. Durch hohe zeitliche Auflösung ist es möglich die Streuung weitestgehend von Fluoreszenz zu separieren. In dieser Arbeit wurden in Form von zwei Schwerpunktthemen sowohl die Parameter untersucht, welche die Zeitauflösung der SNSPD beeinflussen, als auch deren Einsatz in der Spektroskopie adressiert.
Thermodynamics of a photon gas and deformed dispersion relations
Creators: name: Camacho, A.
name: Macias, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We resort to the methods of statistical mechanics in order to determine the effects that a deformed dispersion relation has upon the thermodynamics of a photon gas. The ensuing modifications to the density of states, partition function, pressure, internal energy, entropy, and specific heat are calculated. It will be shown that the breakdown of Lorentz invariance can be interpreted as a repulsive interaction, among the photons. Additionally, it will be proved that the presence of a deformed dispersion relation entails an increase in the entropy of the system. In other words, as a consequence of the loss of the aforementioned symmetry the number of microstates available to the corresponding equilibrium state grows.
description: Accepted in General Relativity and Gravitation. Dedicated to O. Obregon on ocassion of his 60th. birthday
Psychologie des investisseurs et attractivité territoriale
Creators: name: Hajar BENJANA
name: Oumaima YAMANI
Publisher: name: Zenodo
Year: 2023

description: L’investissement peut être considéré comme une décision cruciale pour les investisseurs en Bourse. Une décision qui nécessite un équilibre du couple rendement / risque, ainsi qu’une analyse des opportunités territoriales basée sur la rationalité et la logique.

L’investissement territorial fait entrer en jeu un ensemble de facteurs psychologiques, non seulement de nature cognitive mais aussi, de nature émotionnelle, tels que l’excès de confiance, l’aversion aux pertes etc. Cet ensemble de biais comportementaux peut influencer le processus décisionnel des investisseurs en Bourse, ce qui va impacter significativement l’attractivité territorial.

L'objectif du présent article est de présenter en premier lieu les concepts clés liés à l'attractivité territoriale ainsi qu'aux biais comportementaux. Ensuite, dans un second temps, nous chercherons à établir le lien entre l'attractivité territoriale et la présence de ces biais lors des prises de décisions d'investissement des investisseurs en Bourse.
Object Detection in Aerial Images: A Large-Scale Benchmark and Challenges
Creators: name: Ding, Jian
name: Xue, Nan
name: Xia, Gui-Song
name: Bai, Xiang
name: Yang, Wen
name: Yang, Micheal Ying
name: Belongie, Serge
name: Luo, Jiebo
name: Datcu, Mihai
name: Pelillo, Marcello
name: Zhang, Liangpei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4.8

description: In the past decade, object detection has achieved significant progress in natural images but not in aerial images, due to the massive variations in the scale and orientation of objects caused by the bird's-eye view of aerial images. More importantly, the lack of large-scale benchmarks has become a major obstacle to the development of object detection in aerial images (ODAI). In this paper,we present a large-scale Dataset of Object deTection in Aerial images (DOTA) and comprehensive baselines for ODAI. The proposed DOTA dataset contains 1,793,658 object instances of 18 categories of oriented-bounding-box annotations collected from 11,268 aerial images. Based on this large-scale and well-annotated dataset, we build baselines covering 10 state-of-the-art algorithms with over 70 configurations, where the speed and accuracy performances of each model have been evaluated. Furthermore, we provide a code library for ODAI and build a website for evaluating different algorithms. Previous challenges run on DOTA have attracted more than 1300 teams worldwide. We believe that the expanded large-scale DOTA dataset, the extensive baselines, the code library and the challenges can facilitate the designs of robust algorithms and reproducible research on the problem of object detection in aerial images.
description: Accepted to IEEE TPAMI
Containerized open-source framework for NGS data analysis and management
Creators: name: Alvarez, Roberto Vera
name: Lorinc S. Pongor
name: Mariño-Ramírez, Leonardo
name: Landsman, David
Publisher: name: F1000 Research Limited
Year: 2019

description: The management of next generation sequencing (NGS) data produced by different technologies such as RNA-Seq, ChIP-Seq, ATAC-Seq and DNA-methylation is complex and demands advanced bioinformatics skills. For example, pre-processing quality control and sample selection based on principle component analysis (PCA) are tasks that should be easily available for researchers producing sequencing samples.
In this work we present an open source containerized framework that is easily executed on most workstations for the integration and management of RNA-Seq, ChIP-Seq and ATAC-Seq data. The framework offers a user-friendly interface to execute the basic steps in data analysis allowing researchers a quick and straightforward evaluation of samples produced.
The framework is comprised of a set of NGS data analysis workflows and pipelines in CWL format, a Python-Django back-end for data integration, management and analysis through a set of Jupyter notebooks as user interface. Analysis reports with tables, figures and plots are automatically generated from data files with details and resolution ready for scientific publication. All components are freely available using only open-source technologies.
Jupyter Notebook Templates: https://github.com/ncbi/cookiecutter-jupyter-ngs
CWL workflows: https://github.com/ncbi/cwl-ngs-workflows-cbb
Multiple magnetization plateaus induced by farther neighbor interaction in an $S = 1$ two-leg Heisenberg spin ladder
Creators: name: Kohshiro, Hidehiko
name: Kaneko, Ryui
name: Morita, Satoshi
name: Katsura, Hosho
name: Kawashima, Naoki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the magnetization process of the $S=1$ Heisenberg model on a two-leg ladder with farther neighbor spin-exchange interaction. We consider the interaction that couples up to the next-nearest neighbor rungs and find an exactly solvable regime where the ground states become product states. The next-nearest neighbor interaction tends to stabilize magnetization plateaus at multiples of 1/6. In most of the exactly solvable regime, a single magnetization curve shows two series of plateaus with different periodicities.
description: 8 pages, 5 figures
Nuclear Quantum Effects in liquid water at near classical computational cost using the adaptive Quantum Thermal Bath
Creators: name: Mauger, Nastasia
name: Plé, Thomas
name: Lagardère, Louis
name: Bonella, Sara
name: Mangaud, Etienne
name: Piquemal, Jean-Philip
name: Huppert, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate the accuracy and efficiency of a recently introduced approach to account for nuclear quantum effects (NQE) in molecular simulations: the adaptive Quantum Thermal Bath (adQTB). In this method, zero point energy is introduced through a generalized Langevin thermostat designed to precisely enforce the quantum fluctuation-dissipation theorem. We propose a refined adQTB algorithm with improved accuracy and we report adQTB simulations of liquid water. Through extensive comparison with reference path integral calculations, we demonstrate that it provides excellent accuracy for a broad range of structural and thermodynamic observables as well as infrared vibrational spectra. The adQTB has a computational cost comparable to classical molecular dynamics, enabling simulations of up to millions of degrees of freedom.
On the convergence rate of the chaos game
Creators: name: Bárány, Balázs
name: Jurga, Natalia
name: Kolossváry, István
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: Metric Geometry (math.MG)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 28A80 Secondary 37A50 37C35

description: This paper studies how long it takes the orbit of the chaos game to reach a certain density inside the attractor of a strictly contracting iterated function system of which we only assume that its lower dimension is positive. We show that the rate of growth of this cover time is determined by the Minkowski dimension of the push-forward of the shift invariant measure with exponential decay of correlations driving the chaos game. Moreover, we bound the expected value of the cover time from above and below with multiplicative logarithmic correction terms. As an application, for Bedford-McMullen carpets we completely characterise the family of probability vectors which minimise the Minkowski dimension of Bernoulli measures. Interestingly, these vectors have not appeared in any other aspect of Bedford-McMullen carpets before.
description: 29 pages, 3 figures, 2 tables
On a solution of a fractional hyper-Bessel differential equation by means of a multi-index special function
Creators: name: Droghei, Riccardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 34A08

description: In this paper, we introduce a new multiple-parameters (multi-index) extension of the Wright function that arises from an eigenvalue problem for a case of hyper-Bessel operator involving Caputo fractional derivatives. We show that by giving particular values to the parameters involved in this special function, this leads to some known special functions (as the classical Wright function, the $α$-Mittag-Leffer function, the Tricomi function, etc.) that on their turn appear as cases of the so-called multi-index Mittag-Leffer functions. As an application, we mention that this new generalization Wright function is an isochronous solution of a nonlinear fractional partial differential equation.
description: 12 pages
Limited path percolation in complex networks
Creators: name: López, Eduardo
name: Parshani, Roni
name: Cohen, Reuven
name: Carmi, Shai
name: Havlin, Shlomo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the stability of network communication after removal of $q=1-p$ links under the assumption that communication is effective only if the shortest path between nodes $i$ and $j$ after removal is shorter than $a\ell_{ij} (a\geq1)$ where $\ell_{ij}$ is the shortest path before removal. For a large class of networks, we find a new percolation transition at $\tilde{p}_c=(κ_o-1)^{(1-a)/a}$, where $κ_o\equiv < k^2>/< k>$ and $k$ is the node degree. Below $\tilde{p}_c$, only a fraction $N^δ$ of the network nodes can communicate, where $δ\equiv a(1-|\log p|/\log{(κ_o-1)}) < 1$, while above $\tilde{p}_c$, order $N$ nodes can communicate within the limited path length $a\ell_{ij}$. Our analytical results are supported by simulations on Erdős-Rényi and scale-free network models. We expect our results to influence the design of networks, routing algorithms, and immunization strategies, where short paths are most relevant.
description: 11 pages, 3 figures, 1 table
Σημασιολογική Επιλογή Και Σύνθεση Υπηρεσιών Ιστού:
Creators: name: Ανδρεάδης, Στυλιανός Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Σημασιολογικός Ιστός
Υπηρεσίες Ιστού
Επιλογή και Σύνθεση
Semantic Web
Web Services
Matching and Composition

description: Η εργασία αυτή έχει ως στόχο την επίλυση ζητημάτων, που σχετίζονται με την ανάκτηση Υπηρεσιών Ιστού, γνωστή επίσης ως επιλογή, ανακάλυψη ή ταυτοποίηση υπηρεσιών και με τη σύνθεση Υπηρεσιών Ιστού. Αρχικά, η εργασία αυτή προτείνει ένα νέο αλγόριθμο ταυτοποίησης για SAWSDL. Ο αλγόριθμος είναι υβριδικής φύσεως, συνδυάζοντας νέες και γνωστές έννοιες, όπως η βασισμένη στη λογική στρατηγική και μέτρα ομοιότητας κειμένου σε σημασιολογικές επισημάνσεις και περιγραφές κειμένου. Η υβριδική παραλλαγή του αλγορίθμου κατατάχθηκε ψηλά σε μια εκτενή αξιολόγηση ως προς την αποτελεσματικότητα και την απόδοση, σε σύγκριση με διάφορες παραλλαγές και διάφορους αλγορίθμους της βιβλιογραφίας σε ένα μεγάλο σύνολο δεδομένων. Δεύτερον, αυτή η εργασία προτείνει μια τεχνική αναγωγής ενός προβλήματος σύνθεσης υπηρεσιών σε πρόβλημα σχεδιασμού ενεργειών, το οποίο επιλύεται στη συνέχεια από έναν καθιερωμένο σχεδιαστή. Επιπλέον, η εργασία παρουσιάζει την web εφαρμογή Tomaco, που αποσκοπεί στην επιτάχυνση της ευρείας διάδοσης των τεχνολογιών και των αλγορίθμων Σημασιολογικών Υπηρεσιών Ιστού, αντιμετωπίζοντας την απουσία φιλικών προς το χρήστη εφαρμογών αυτού του πεδίου. Το Tomaco ενσωματώνει μια ποικιλία παραμετροποιήσιμων αλγορίθμων επιλογής υπηρεσιών, που προτείνονται σε αυτή την εργασία, καθώς και μια τεχνική σύνθεσης υπηρεσιών. Τέλος, επιτρέπει την ανακάλυψη τόσο υπαρχόντων συλλογών υπηρεσιών όσο και προσφερόμενων από τους χρήστες, λειτουργώντας επίσης σαν αποθήκη υπηρεσιών.
description: This work aims to resolve issues related to Web Service retrieval, also known as service selection, discovery or essentially matching, and Web Service Composition. Firstly, it introduces a new matching algorithm for SAWSDL. The algorithm is hybrid in nature, combining novel and known concepts, such as a logic-based strategy and syntactic text-similarity measures on semantic annotations and textual descriptions. The algorithm’s hybrid variant ranked high during an extensive effectiveness and performance evaluation amongst different variants and state-of-the-art algorithms on a large dataset. Secondly, this work suggests a simple technique to map a composition problem into a planning problem, which is then resolved by an established planner. In addition, this work introduces the Tomaco web application which aims to accelerate the wide-spread deployment of Semantic Web Service technologies and algorithms, targeting the lack of user-friendly applications for this field. Tomaco integrates a variety of configurable matching algorithms proposed in this paper, as well as a composition technique. It, finally, allows discovery of both existing and user-contributed service collections and ontologies, serving also as a service registry.
New insights on binary black hole formation channels after GWTC-2: young star clusters versus isolated binaries
Creators: name: Bouffanais, Yann
name: Mapelli, Michela
name: Santoliquido, Filippo
name: Giacobbo, Nicola
name: Di Carlo, Ugo N.
name: Rastello, Sara
name: Artale, M. Celeste
name: Iorio, Giuliano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: With the recent release of the second gravitational-wave transient catalogue (GWTC-2), which introduced dozens of new detections, we are at a turning point of gravitational wave astronomy, as we are now able to directly infer constraints on the astrophysical population of compact objects. Here, we tackle the burning issue of understanding the origin of binary black hole (BBH) mergers. To this effect, we make use of state-of-the-art population synthesis and N-body simulations, to represent two distinct formation channels: BBHs formed in the field (isolated channel) and in young star clusters (dynamical channel). We then use a Bayesian hierarchical approach to infer the distribution of the mixing fraction $f$, with $f=0$ ($f=1$) in the pure dynamical (isolated) channel. %that controls the proportion of isolated and dynamical BBHs. We explore the effects of additional hyper-parameters of the model, such as the spread in metallicity $σ_{\text{Z}}$ and the parameter $σ_{\text{sp}}$, describing the distribution of spin magnitudes. We find that the dynamical model is slightly favoured with a median value of $f=0.26$, when $σ_{\text{sp}}=0.1$ and $σ_{\text{Z}}=0.4$. Models with higher spin magnitudes tend to strongly favour dynamically formed BBHs ($f\le{}0.1$ if $σ_{\text{sp}}=0.3$). Furthermore, we show that hyper-parameters controlling the rates of the model, such as $σ_{\rm Z}$, have a large impact on the inference of the mixing fraction, which rises from $0.18$ to $0.43$ when we increase $σ_{\text{Z}}$ from 0.2 to 0.6, for a fixed value of $σ_{\text{sp}}=0.1$. Finally, our current set of observations is better described by a combination of both formation channels, as a pure dynamical scenario is excluded at the $99\%$ credible interval, except when the spin magnitude is high.
description: 13 pages, 10 figures, 2 tables, published in MNRAS
Evaluation of Pressure Tensor in Constant-Volume Simulations of Hard and Soft Convex Bodies
Creators: name: Allen, Michael P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A method for calculating the pressure tensor in constant-volume Monte Carlo simulations of convex bodies is presented. In contrast to other approaches, the method requires only an isotropic scaling of the simulation box, and the counting of simple geometric quantities characterizing overlapping pairs. Non-sphericity presents no special difficulties. The result is expressed as a sum of pairwise contributions, and can therefore be used to compute pressure tensor profiles in a conventional way.
Supplementary Information to the paper ``Breakdown of the adiabatic limit in low dimensional gapless systems''
Creators: name: Polkovnikov, A.
name: Gritsev, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Here we give detailed derivations and provide additional examples to the main paper: arXiv:0706.0212. In particular, we discuss the scaling behavior of observables like correlation functions and density of excitations. We also analyze effects of nonintegrability of the Bose-Hubbard model on the long-time dynamics of the correlation functions. In addition we explicitly consider several interacting models, where we are able to analyze slow dynamics and classify it according to the regimes suggested in the main paper.
description: 11 pages, 6 figures. The current version of the main paper arXiv:0706.0212 is not up to date according to the Nature Physics editorial policy
Podospora anserina Niessl
Creators: name: Ferrari, Roselyne
name: Gautier, Valérie
name: Tangthirasunun, Narumon
name: Tong, Laetitia Chan Ho
name: Silar, Philippe
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Sordariales
Lasiosphaeriaceae
Podospora
Podospora anserina

description: EXPRESSION OF PEROXIDASE GENES IN P. ANSERINA MYCELIUM
We evaluated the expression of peroxidase genes during two days and four days of growth on M2 medium (Table 1), by analyzing microarrays and RNAseq data generated in previous studies (Bidard et al. 2012; Silar et al. 2019) (Table 1). We could evidence expression of all peroxidase genes (except for the “ Pa_2_10 ” pseudogene). The hybrid B peroxidase Pa_2_9370 and the aromatic peroxygenase Pa_0_370 genes were highly transcribed; on the contrary, the class II peroxidase Pa_1_5970 and the aromatic peroxygenase Pa_5_12205 gene were poorly expressed, a feature compatible with the lack of the aromatic peroxygenase Pa_5_ 1220 in secretomes data. Note that analysis of RNAseq data from perithecia showed that the class II peroxidase Pa_1_5970 gene was much more transcribed in these sexual fruiting bodies than in the mycelium, especially in four-day-old perithecia.
description: Published as part of Ferrari, Roselyne, Gautier, Valérie, Tangthirasunun, Narumon, Tong, Laetitia Chan Ho & Silar, Philippe, 2024, Characterization of the Podospora anserina (Rabenh.) Niessl peroxidase gene family, pp. 11-28 in Cryptogamie, Mycologie 20 (2) on page 20, DOI: 10.5252/cryptogamiemycologie2024v45a2, http://zenodo.org/record/10679599
Τα σύμβολα των κομμάτων στις βαλκανικές χώρες
Creators: name: Sioulis, Lazaros
name: Athanailidou, Adamantia
name: Koutsoupias, Nikos
Publisher: name: Zenodo
Year: 2023

description: Κατά την μετάβαση από τα μονοκομματικά καθεστώτα του υπαρκτού σοσιαλισμούτων χωρών της βαλκανικής, σε πολυκομματικές δημοκρατίες και των ιδιαιτέρωνπολιτικών και κοινωνικών μεταβολών (πόλεμοι, εθνικιστικές εξάρσεις, αλλά καιαγώνες ένταξης στην ευρωπαϊκή ένωση) που συνόδευσαν την μετάβαση,δημιούργησαν χώρο για την δημιουργία εθνικιστικών, λαϊκιστικών κομμάτων αλλάκαι φιλελευθέρων κομμάτων. Η παρουσία των νέων κομματικών σχηματισμών σεσυνδυασμό με τους παλιότερους δημιουργεί ένα ιδιαίτερο πολιτικό περιβάλλον,στοιχειά του οποίου εντοπίζονται μέσα από την σημειωτική ανάλυση των συμβολών,των κομμάτων και αναλύονται με την χρήση της παραγοντικής ανάλυσης.
Ανάπτυξη Περιβάλλοντος Σημασιολογικής Διαχείρισης Ηχητικής Πληροφορίας:
Creators: name: Βρύσης, Λάζαρος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Λογισμικό
Έξυπνο τηλέφωνο
Ηλεκτρακουστική
Software
Smartphone
Electoacoustics

description: Η παρούσα εργασία αφορά τη θεωρητική μελέτη και την ανάπτυξη ενός περιβάλλοντος λογισμικού πραγματοποίησης ακουστικών μετρήσεων, με έμφαση στη σημασιολογική ανάλυση ηχητικού περιεχομένου. Η ανάπτυξη της εφαρμογής έγινε βάσει των σταδίων της ανάλυσης, της σχεδίασης, της υλοποίησης και της αξιολόγησης, ενώ προορίζεται για τα έξυπνα τηλέφωνα iPhone και το λειτουργικό σύστημα iOS. Πρόκειται για μια πρόταση σχεδιασμού και υλοποίησης ενός ευέλικτου και φιλικού στη χρήση περιβάλλοντος, με δυνατότητες μέτρησης ηχητικής στάθμης, φασματική ανάλυσης, μέτρησης χρόνου αντήχησης, καταγραφής και ανάλυσης κρουστικής απόκρισης και χωροχρονικής σημασιολογικής αποτύπωσης, που μπορεί εύκολα να χρησιμοποιηθεί από μη ειδικούς. Γνώμονα ανάπτυξης αποτέλεσε η επιδίωξη το παραγόμενο λογισμικό να παρέχει παρόμοιες λειτουργίες και ισάξιας πιστότητας μετρήσεις με μια επαγγελματική συσκευή ηχομέτρησης, ενώ παράλληλα δόθηκε βαρύτητα στην ενσωμάτωση επιπρόσθετων δυνατοτήτων που θα προσφέρουν πολύτιμες ευκολίες στον χρήστη και έχουν να κάνουν με τη διαχείριση των συνεδριών μέτρησης. Η μελέτη περιλαμβάνει και την ανάπτυξη υπηρεσιών «στο σύννεφο», που σε συνάρτηση με τις παραπάνω δυνατότητες καθιστά το έργο κατάλληλο για έρευνα σε σύγχρονες επιστημονικές περιοχές ενδιαφέροντος, όπως τη μελέτη ηχοτοπίων και χαρτογράφησης θορύβου.
description: The current work presents the implementation of a mobile software environment that provides a suite of professional-grade audio and acoustic analysis tools for smartphones and tablets bringing also semantic intelligence into ubiquitous computing environments. The suite includes sound level monitoring, real-time time-frequency analysis, reverberation time and impulse response measurements, whereas feature-based intelligent content analysis is deployed in terms of long-term audio event detection and segmentation. The report investigates the implementation of a flexible and user-friendly environment, which can be easily used by non-specialists, providing professional functionality and fidelity of specific-purpose devices, and eliminating the mobile-interfacing and hardware limitations. Emphasis is given to the integration of additional capabilities that will offer valuable amenities to the user, having to do with the management of measurement sessions and intelligent cloud-based semantic analysis.
Deficit in the Emotional Embodiment in Alexithymia
Creators: name: Scarpazza, Cristina <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: M-PSI/02 Psicobiologia e psicologia fisiologica

description: Alexithymia refers to difficulties in recognizing one’s own emotions and others emotions. Theories of emotional embodiment suggest that, in order to understand other peoples’ feelings, observers re-experience, or simulate, the relevant component (i.e. somatic, motor, visceral) of emotion’s expressed by others in one’s self. In this way, the emotions are “embodied”. Critically, to date, there are no studies investigating the ability of alexithymic individuals in embodying the emotions conveyed by faces. 
In the present dissertation different implicit paradigms and techniques falling within the field of affective neuroscience have been employed in order to test a possible deficit in the embodiment of emotions in alexithymia while subjects were requested to observe faces manifesting different expression: fear, disgust, happiness and neutral. The level of the perceptual encoding of emotional faces and the embodiment of emotions in the somato-sensory and sensory-motor system have been investigated. Moreover, non-communicative motor reaction to emotional stimuli (i.e. visceral reactions) and interoceptive abilities of alexithymic subjects have been explored. 
The present dissertation provided convergent evidences in support of a deficit in the processing of fearful expression in subjects with high alexithymic personality traits. Indeed, the pattern of fear induced changes in the perceptual encoding, in the somato-sensory and in the somato-motor system (both the communicative and non communicative one) is widely and consistently altered in alexithymia. This support the hypothesis of a diminished responses to fearful stimuli in alexithymia.
In addition, the overall results on happiness and disgust, although preliminary, provided interesting results. Indeed, the results on happiness revealed a defective perceptual encoding, coupled with a slight difficulty (i.e. delayed responses) at the level of the communicative somato-motor system, and the emotion of disgust has been found to be abnormally embodied at the level of the somato-sensory system.
Metal enriched gaseous halos around distant radio galaxies: Clues to feedback in galaxy formation
Creators: name: Reuland, Michiel
name: van Breugel, Wil
name: de Vries, Wim
name: Dopita, Michael A.
name: Dey, Arjun
name: Miley, George
name: Roettgering, Huub
name: Venemans, Bram
name: Stanford, S. A.
name: Lacy, Mark
name: Spinrad, Hy
name: Dawson, Steve
name: Stern, Daniel
name: Bunker, Andrew
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of an optical and near-IR spectroscopic study of giant nebular emission line halos associated with three z > 3 radio galaxies, 4C 41.17, 4C 60.07 and B2 0902+34. Previous deep narrow band Ly-alpha imaging had revealed complex morphologies with sizes up to 100 kpc), possibly connected to outflows and AGN feedback from the central regions. The outer regions of these halos show quiet kinematics with typical velocity dispersions of a few hundred km/s, and velocity shears that can mostly be interpreted as being due to rotation. The inner regions show shocked cocoons of gas closely associated with the radio lobes. These display disturbed kinematics and have expansion velocities and/or velocity dispersions >1000 km/s. The core region is chemically evolved, and we also find spectroscopic evidence for the ejection of enriched material in 4C 41.17 up to a distance of approximately 60 kpc along the radio-axis. The dynamical structures traced in the Ly-alpha line are, in most cases, closely echoed in the Carbon and Oxygen lines. This shows that the Ly-alpha line is produced in a highly clumped medium of small filling factor, and can therefore be used as a tracer of the dynamics of high-z radio galaxies (HzRGs). We conclude that these HzRGs are undergoing a final jet-induced phase of star formation with ejection of most of their interstellar medium before becoming "red and dead" Elliptical galaxies.
description: Accepted for publication in AJ (June 2007 issue); 24 pages, 12 figures (reduced in size)