cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlated Differential Privacy: Feature Selection in Machine Learning
Creators: name: Zhang, Tao
name: Zhu, Tianqing
name: Xiong, Ping
name: Huo, Huan
name: Tari, Zahir
name: Zhou, Wanlei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Privacy preserving in machine learning is a crucial issue in industry informatics since data used for training in industries usually contain sensitive information. Existing differentially private machine learning algorithms have not considered the impact of data correlation, which may lead to more privacy leakage than expected in industrial applications. For example, data collected for traffic monitoring may contain some correlated records due to temporal correlation or user correlation. To fill this gap, we propose a correlation reduction scheme with differentially private feature selection considering the issue of privacy loss when data have correlation in machine learning tasks. %The key to the proposed scheme is to describe the data correlation and select features which leads to less data correlation across the whole dataset. The proposed scheme involves five steps with the goal of managing the extent of data correlation, preserving the privacy, and supporting accuracy in the prediction results. In this way, the impact of data correlation is relieved with the proposed feature selection scheme, and moreover, the privacy issue of data correlation in learning is guaranteed. The proposed method can be widely used in machine learning algorithms which provide services in industrial areas. Experiments show that the proposed scheme can produce better prediction results with machine learning tasks and fewer mean square errors for data queries compared to existing schemes.
description: This paper has been published in IEEE Transactions on Industrial Informatics
Ιστορικισμός και Ουσιοκρατία στη φιλοσοφία τέχνης του Arthur Danto:
Creators: name: Περράκης, Ευάγγελος-Αλέξανδρος Στυλιανού
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ιστορικισμός
Ουσιοκρατία
Φιλοσοφία τέχνης/Αισθητική
Historicism
Essentialism
Philosophy of Art/Aesthetics

description: Σχεδόν από το ξεκίνημά τους, τέχνη και φιλοσοφία βρίσκονται σε διαρκή διάλογο. Η μελέτη εξετάζει αυτή τη σχέση από τις απαρχές της, καθώς και το διαλεκτικό δρόμο που ακολούθησαν κατά το ιστορικό τους ξεδίπλωμα. Εστιάζει κυρίως στον αμερικανό αναλυτικό φιλόσοφο Arthur Danto, ο οποίος, προσεγγίζοντας με ευρηματικότητα το ζήτημα της τέχνης, ανακάλυψε ότι κατά τη δεκατία του '60 επιτελέστηκε η τελευταία επανάσταση στο χώρο της τέχνης. Το τέλος της τέχνης και ο ορισμός της συναντιούνται, στη θεωρία του Danto, σ' ένα Παράδειγμα που αναγγέλει τη χειραφέτηση της τέχνης από τα δεσμά της ιστορίας και ταυτόχρονα την ανάδυση της φιλοσοφίας της τέχνης. Η αναλυτική φιλοσοφία συμπλέκεται με τη φιλοσοφία της ιστορίας της τέχνης, καθώς η εγελιανή αισθητική διατήρησε την εφαρμοσιμότητά της στην ιστορική και στην, κατά Danto, μετα-ιστορική εποχή της τέχνης. Η μελέτη προσπαθεί επίσης να ελέγξει κριτικά το κατά πόσο η σύγκρουση ιστορικισμού και ουσιοκρατίας λύεται στο Παράδειγμα του τέλους/ορισμού της τέχνης, καθώς και να θέσει έναν ευρύτερο προβληματισμό πάνω στο έργο του Danto και στην τέχνη γενικότερα.
description: Since almost their “birth”, art and philosophy are in a constant dialogue. This research observes this relationship from its beginning, but also the dialectical path that it followed throughout history. Focuses on the American analytical philosopher Arthur Danto, who by approaching the issue of art ingeniously, came to the conclusion that during the 60's the last revolution of history was performed. The end and the definition of art, in Danto's theory, join in a Paradigm which declares the emancipation of art from the bonds of history and simultaneously the emergence of the philosophy of art. The analytical philosophy interacts with the philosophy of art history, while Hegelian aesthetics kept its implementation during art's historical, and according to Danto, post-historical era. This research is also an attempt to examine critically whether the conflict between historicism and essentialism is being solved in the Paradigm of the end/definition of art, and to raise a wider discussion not only on Danto’s work, but on arts in general as well
A Tree-structure Convolutional Neural Network for Temporal Features Exaction on Sensor-based Multi-resident Activity Recognition
Creators: name: Cao, Jingjing
name: Guo, Fukang
name: Lai, Xin
name: Zhou, Qiang
name: Dai, Jinshan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: With the propagation of sensor devices applied in smart home, activity recognition has ignited huge interest and most existing works assume that there is only one habitant. While in reality, there are generally multiple residents at home, which brings greater challenge to recognize activities. In addition, many conventional approaches rely on manual time series data segmentation ignoring the inherent characteristics of events and their heuristic hand-crafted feature generation algorithms are difficult to exploit distinctive features to accurately classify different activities. To address these issues, we propose an end-to-end Tree-Structure Convolutional neural network based framework for Multi-Resident Activity Recognition (TSC-MRAR). First, we treat each sample as an event and obtain the current event embedding through the previous sensor readings in the sliding window without splitting the time series data. Then, in order to automatically generate the temporal features, a tree-structure network is designed to derive the temporal dependence of nearby readings. The extracted features are fed into the fully connected layer, which can jointly learn the residents labels and the activity labels simultaneously. Finally, experiments on CASAS datasets demonstrate the high performance in multi-resident activity recognition of our model compared to state-of-the-art techniques.
description: 12 pages, 4 figures
Η ανάπτυξη της ηθικής σκέψης στους μαθητές της δευτεροβάθμιας εκπαίδευσης (εμπειρική έρευνα):
Creators: name: Καραμαλάκης, Εμμανουήλ Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ηθική σκέψη
Ηθική ανάπτυξη
Moral thinking
Moral development

description: Σκοπός της εργασίας μας, είναι να προσπαθήσουμε να διερευνήσουμε, με ποιο τρόπο ο νέος άνθρωπος και ειδικότερα ο μαθητής της δευτεροβάθμιας εκπαίδευσης, αναπτύσσει την ηθικότητά του και πως εσωτερικοποιεί τις ηθικές αρχές και αξίες. Στο πρώτο κεφάλαιο περιγράφουμε συνοπτικά τις βασικότερες θεωρίες για την ηθική ανάπτυξη του παιδιού και του εφήβου, δίνοντας μεγαλύτερη έμφαση στις γνωστικές θεωρίες. Ακολούθως, στο δεύτερο κεφάλαιο προσπαθούμε να προσεγγίσουμε γενικότερα την ανάπτυξη της θρησκευτικής σκέψης και πίστης, σε σχέση με την ηθική ανάπτυξη του νέου. Στο τρίτο κεφάλαιο θα αναφερόμαστε στο πως μπορούν να διδαχθούν οι ηθικές αξίες μέσα από την οικογένεια, το κοινωνικό περίγυρο και το σχολείο. Ακολούθως θα προτείνουμε τρία διδακτικά μοντέλα διδασκαλίας, τα οποία θεωρούμε ότι είναι κατάλληλα για τη καλλιέργεια της ηθικής σκέψης και τη διδασκαλία των ηθικών αξίων στους μαθητές της δευτεροβάθμιας εκπαίδευσης. Στο τέταρτο κεφαλαίο παρουσιάζουμε την έρευνα, καθώς και τα συμπεράσματα της έρευνας που πραγματοποιήσαμε για την ανάπτυξη της ηθικής σκέψης των μαθητών στην δευτεροβάθμια εκπαίδευση. Στο τελευταίο μέρος της εργασίας μας παρουσιάζουμε τα τελικά μας συμπεράσματα.
description: Our objective is to try to investigate, how the young man, and especially the student of secondary education, develop morality and how to internalize moral principles and values. The first chapter outlines the basic theories of moral development of children and adolescents, with greater emphasis on cognitive theories. Then in the second chapter we try to reach general development of religious thought and belief, in relation to the moral development of the new. The third chapter will refer to how to teach moral values in family, social environment and school. Then we will propose three educational models of teaching, which we believe are suitable for the cultivation of moral thought and teaching of moral values in students of secondary education. The fourth chapter presents the research and findings of the survey we conducted for the development of moral thinking in students in secondary education. In the last part of our work we present our final conclusions.
Lindenia tetraphylla Van der Linden 1825
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Gomphidae
Lindenia
Lindenia tetraphylla

description: 27. Lindenia tetraphylla.
 Ist in Italien, Dalmatien, in Egypten und Algier und am Sir Darja (als L. quadrıfoliala Eversmann angegeben) findet sich also wohl auch in den zwischenliegenden Ländern.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Cordulegaster annulatus Latreille 1805
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Cordulegastridae
Cordulegaster
Cordulegaster annulatus

description: 24. Cordulogaster annulatus Latr.
 Aeschn. charpentieri Kol. Klein-Asien, Brussa, Trapezunt, fast in ganz Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 196, DOI: 10.5281/zenodo.3528093
Anax formosus Van der Linden 1820
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Aeshnidae
Anax
Anax formosus

description: 28. Anax formosus Van der Lind.
Syrien (Hedenborg). Fast in ganz Europa; In Afrika in Egypten, Algier, auf Madeira.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Damage mechanisms in polyalkenes irradiated with ultra-short XUV/x-ray laser pulses
Creators: name: Nikishev, N.
name: Medvedev, N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Although polymers are widely used in laser-irradiation research, their microscopic response to high-intensity ultrafast XUV or X-ray irradiation is still largely unknown. Here we comparatively study homologous series of alkenes. XTANT-3 hybrid simulation toolkit is used to determine their damage kinetics and irradiation threshold doses. The code simultaneously models the nonequilibrium electron kinetics, the energy transfer between electrons and atoms via nonadiabatic electron-ion (electron-phonon) coupling, nonthermal modification of the interatomic potential due to electronic excitation, and the ensuing atomic response and damage formation. It is shown that the lowest damage threshold is associated with local defect creation such as dehydrogenation, various group detachment from the backbone, or polymer strand cross-linking. At higher doses, the disintegration of the molecules leads to a transient metallic liquid state. We identify nonthermal effects as the leading mechanism of damage, whereas the thermal (electron-ion coupling) channel influences the kinetics only slightly in the case of femtosecond-pulse irradiation. Despite notably different properties of the studied alkene polymers, the ultrafast-X-ray damage threshold doses are found to be very close to ~0.05 eV/atom in all three materials: polyethylene, polypropylene, and polybutylene.
Dissipationless collapses in MOND
Creators: name: Nipoti, C.
name: Londrillo, P.
name: Ciotti, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Dissipationless collapses in Modified Newtonian Dynamics (MOND) are studied by using a new particle-mesh N-body code based on our numerical MOND potential solver. We found that low surface-density end-products have shallower inner density profile, flatter radial velocity-dispersion profile, and more radially anisotropic orbital distribution than high surface-density end-products. The projected density profiles of the final virialized systems are well described by Sersic profiles with index m~4, down to m~2 for a deep-MOND collapse. Consistently with observations of elliptical galaxies, the MOND end-products, if interpreted in the context of Newtonian gravity, would appear to have little or no dark matter within the effective radius. However, we found impossible (under the assumption of constant mass-to-light ratio) to simultaneously place the resulting systems on the observed Kormendy, Faber-Jackson and Fundamental Plane relations of elliptical galaxies. Finally, the simulations provide strong evidence that phase mixing is less effective in MOND than in Newtonian gravity.
description: 15 pages, 6 figures, Accepted for publication in ApJ
Το συναίσθημα των μικροεπενδυτών ως επιπρόσθετος παράγοντας κίνδυνου και η επίδρασή του στις κεφαλαιαγορές:
Creators: name: Μόσχος, Μόσχος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Συναίσθημα
Μικροεπενδυτές
Κεφαλαιαγορά
Sentiment
Small investor
Capital Markets

description: Σκοπός αυτής της έρευνας είναι να εξετάσει κατά πόσο το συναίσθημα των επενδυτών αποτελεί έναν επιπρόσθετο παράγοντα κινδύνου που επηρεάζει την κεφαλαιαγορά και για αυτό θα πρέπει να συνεκτιμηθεί. Για το σκοπό αυτό μελετήθηκαν έρευνες σχετικές με το συναίσθημα των μικροεπενδυτών σε παγκόσμιο επίπεδο, αλλά και έρευνες που έγιναν από Έλληνες πανεπιστημιακούς με δεδομένα από την Ελληνική Κεφαλαιαγορά, η οποία κατά τα τελευταία χρόνια έχει περάσει από πολλές διακυμάνσεις. Εάν το συναίσθημα των επενδυτών είναι ένας ψυχολογικός παράγοντας κινδύνου, θα είναι πιο εμφανής σε αγορές που παρουσιάζουν μεγάλες διακυμάνσεις, είναι μικρές σε μέγεθος και περισσότερο ευάλωτες σε θορύβους σε σχέση με τις μεγάλες και αναπτυγμένες αγορές, στοιχεία τα οποία οπωσδήποτε χαρακτηρίζουν την Ελληνική Κεφαλαιαγορά.
description: The aim of this paper is to examine whether the investor sentiment is an additional risk factor which affects the capital market and this account should be taken. For this purpose we studied international researches related to the small investor sentiment, but also researches carried out by Greek scholars with data from the Hellenic capital market, which in recent years has gone through many changes. If the investor sentiment is a psychological risk factor, it will be more evident in markets that are highly variable, are small in size and more susceptible to noise compared with large and developed markets, elements which strongly characterise the Hellenic capital market anyway.
Group invariant inferred distributions via noncommutative probability
Creators: name: Heller, B.
name: Wang, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62A05, 62F99 (Primary) 62F15, 62A30 (Secondary)

description: One may consider three types of statistical inference: Bayesian, frequentist, and group invariance-based. The focus here is on the last method. We consider the Poisson and binomial distributions in detail to illustrate a group invariance method for constructing inferred distributions on parameter spaces given observed results. These inferred distributions are obtained without using Bayes' method and in particular without using a joint distribution of random variable and parameter. In the Poisson and binomial cases, the final formulas for inferred distributions coincide with the formulas for Bayes posteriors with uniform priors.
description: Published at http://dx.doi.org/10.1214/074921706000000563 in the IMS Lecture Notes--Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Little-Bang and Femto-Nova in Nucleus-Nucleus Collisions
Creators: name: Fukushima, Kenji
name: Mohanty, Bedangadas
name: Xu, Nu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We make a theoretical and experimental summary of the state-of-the-art status of hot and dense QCD matter studies on selected topics. We review the Beam Energy Scan program for the QCD phase diagram and present the current status of search for QCD Critical Point, particle production in high baryon density region, hypernuclei production, and global polarization effects in nucleus-nucleus collisions. The available experimental data in the strangeness sector suggests that a grand canonical approach in thermal model at high collision energy makes a transition to the canonical ensemble behavior at low energy. We further discuss future prospects of nuclear collisions to probe properties of baryon-rich matter. Creation of a quark-gluon plasma at high temperature and low baryon density has been called the "Little-Bang" and, analogously, a femtometer-scale explosion of baryon-rich matter at lower collision energy could be called the "Femto-Nova", which may possibly sustain substantial vorticity and magnetic field for non-head-on collisions.
description: 14 pages, 7 pages, a review contributed to the AAPPS Bulletin
The Cosmic Stellar Birth and Death Rates
Creators: name: Beacom, John F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The cosmic stellar birth rate can be measured by standard astronomical techniques. It can also be probed via the cosmic stellar death rate, though until recently, this was much less precise. However, recent results based on measured supernova rates, and importantly, also on the attendant diffuse fluxes of neutrinos and gamma rays, have become competitive, and a concordant history of stellar birth and death is emerging. The neutrino flux from all past core-collapse supernovae, while faint, is realistically within reach of detection in Super-Kamiokande, and a useful limit has already been set. I will discuss predictions for this flux, the prospects for neutrino detection, the implications for understanding core-collapse supernovae, and a new limit on the contribution of type-Ia supernovae to the diffuse gamma-ray background.
description: Accepted for publication in New Astronomy Reviews (invited talk at "Astronomy with Radioactivities V", Clemson Univ., Sept. 2005). 9 pages, 5 figures
Artificial Intelligence and its impact on the Fourth Industrial Revolution: A Review
Creators: name: Velarde, Gissel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Artificial Intelligence may revolutionize everything during the so-called fourth industrial revolution, which carries several emerging technologies and could progress without precedents in human history due to its speed and scope. Government, academia, industry, and civil society show interest in understanding the multidimensional impact of the emerging industrial revolution; however, its development is hard to predict. Experts consider emerging technologies could bring tremendous benefits to humanity; at the same time, they could pose an existential risk. This paper reviews the development and trends in AI, as well as the benefits, risks, and strategies in the field. During the course of the emerging industrial revolution, the common good may be achieved in a collaborative environment of shared interests and the hardest work will be the implementation and monitoring of projects at a global scale.
Anax mediterraneus Selys 1839
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Aeshnidae
Anax
Anax mediterraneus

description: 29. A. mediterraneus Selys.
Beirut, Libanon, Arabien auch. aus dem Himalaya. In Afrika in Egypten, am Senegal, Congo.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
deSpeckNet: Generalizing Deep Learning Based SAR Image Despeckling
Creators: name: Mullissa, Adugna G.
name: Marcos, Diego
name: Tuia, Devis
name: Herold, Martin
name: Reiche, Johannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Deep learning (DL) has proven to be a suitable approach for despeckling synthetic aperture radar (SAR) images. So far, most DL models are trained to reduce speckle that follows a particular distribution, either using simulated noise or a specific set of real SAR images, limiting the applicability of these methods for real SAR images with unknown noise statistics. In this paper, we present a DL method, deSpeckNet1, that estimates the speckle noise distribution and the despeckled image simultaneously. Since it does not depend on a specific noise model, deSpeckNet generalizes well across SAR acquisitions in a variety of landcover conditions. We evaluated the performance of deSpeckNet on single polarized Sentinel-1 images acquired in Indonesia, The Democratic Republic of Congo and The Netherlands, a single polarized ALOS-2/PALSAR-2 image acquired in Japan and an Iceye X2 image acquired in Germany. In all cases, deSpeckNet was able to effectively reduce speckle and restore
The galaxy luminosity - size relation and selection biases in the Hubble Ultra Deep Field
Creators: name: Cameron, E.
name: Driver, S. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the Hubble Ultra Deep Field to study the galaxy luminosity-size (M-Re) distribution. With a careful analysis of selection effects due to both detection completeness and measurement reliability we identify bias-free regions in the M-Re plane for a series of volume-limited samples. By comparison to a nearby survey also having well defined selection limits, namely the Millennium Galaxy Catalogue, we present clear evidence for evolution in surface brightness since z ~ 0.7. Specifically, we demonstrate that the mean, rest-frame B-band surface brightness for galaxies in a sample spanning 8 magnitudes in luminosity between M = -22 and -14 mag increases by ~1.0 mag/arcsec^2 from z ~ 0.1 to z ~ 0.7. We also highlight the importance of considering surface brightness dependent measurement biases in addition to incompleteness biases. In particular, the increasing, systematic under-estimation of Kron fluxes towards low surface brightnesses may cause diffuse, yet luminous, systems to be mistaken for faint, compact objects.
description: 15 pages, 12 figures. Accepted for publication in MNRAS
The North American monsoon
Creators: name: Okabe, Ian T.
Publisher: name: University of British Columbia
Year: 2009

description: The North American summer monsoon is documented, using precipitation data together with gridded data for outgoing long-wave radiation (OLR), geopotential height and wind at various levels. The upper level divergence field is diagnosed and compared with the precipitation field. A simple wet-dry precipitation index is used to date the monsoon onset at stations with daily precipitation data. The analysis shows that the monsoon rains advance northward rapidly from late June to early July. The monsoon onset is accompanied by the development of a pronounced anticyclone at the jet stream level, by sea-level pressure rises over the southwestern United States, and by decreases in climatological mean rainfall over adjacent regions of the United States, Mexico and the Caribbean. This coherent pattern of rainfall changes, that covers much of North and Central America, is shown to be dynamically consistent with the circulation changes aloft. Hence, the monsoon onset is embedded within a planetary-scale pattern of circulation changes. The demise of the monsoon and the associated upper level anticyclone, which takes place around September of the year, is more gradual than the onset, and it is accompanied by an increase in rainfall throughout much of the surrounding region. The monsoon exhibits substantial interannual variability with regard to intensity and onset date.
Synthesis, crystal structure, polymorphism and microscopic luminescence properties of anthracene derivative compounds
Creators: name: Moliterni, Anna
name: Altamura, Davide
name: Lassandro, Rocco
name: Olieric, Vincent
name: Ferri, Gianmarco
name: Cardarelli, Francesco
name: Camposeo, Andrea
name: Pisignano, Dario
name: Anthony, John E.
name: Giannini, Cinzia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Anthracene derivative compounds are currently investigated because of their unique physical properties (e.g., bright luminescence and emission tunability), which make them ideal candidates for advanced optoelectronic devices. Intermolecular interactions are the basis of the tunability of the optical and electronic properties of these compounds, whose prediction and exploitation benefit from the knowledge of the crystal structure and the packing architecture. Polymorphism can occur due to the weak intermolecular interactions, asking for detailed structural analysis clarifying the origin of observed material property modifications. Here, two silylethyne-substituted anthracene compounds are characterized by single-crystal synchrotron X-ray diffraction, identifying a new polymorph. Additionally, laser confocal microscopy and fluorescence lifetime imaging microscopy confirm the results obtained by the X-ray diffraction characterization, i.e., shifting the substituents towards the external benzene rings of the anthracene unit favours π-π interactions, impacting on both the morphology and the microscopic optical properties of the crystals. The compounds with more isolated anthracene units feature shorter lifetime and emission spectra more similar to those ones of isolated molecules. The crystallographic study, supported by the optical investigation, sheds light on the influence of non-covalent interactions on the crystal packing and luminescence properties of anthracene derivatives, providing a further step towards their efficient use as building blocks in active components of light sources and photonic networks.
description: 39 pages, 16 figures, 3 tables
Ο κοινωνικός λόγος του εκσυγχρονισμού: Η περίπτωση του Ασφαλιστικού Νομοσχέδιου (Άνοιξη 2001):
Creators: name: Καρακούσης, Γεώργιος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Πασοκ
Εκσυγχρονισμός
Σύστημα κοινωνικών ασφαλίσεων
Pasok
Modernization
System of social insurances

description: Σκοπός της διπλωματικής μας διατριβής ήταν να επαληθεύσουμε πως μέσα από τις γραμμές της αντιπαράθεσης για την μεταρρύθμιση του συστήματος κοινωνικής ασφάλισης, καταγράφηκε μια σύγκρουση των εκσυγχρονιστών της κυβέρνησης με τους αντι-εκσυγχρονιστές της εσωκομματικής αντιπολίτευσης του ΠΑΣΟΚ και τους συνδικαλιστές. Αρχικά αναλύσαμε έννοιες κομβικές για την κατανόηση του θέματος μας, όπως το κράτος πρόνοιας, τον φιλελευθερισμό και πως προκύπτουν ο εκσυγχρονισμός και ο αντι-εκσυγχρονισμός και το συνδικαλισμό. Εν συνεχεία, παρουσιάσαμε και αναλύσαμε την επιχειρηματολογία της κυβέρνησης υπέρ του νομοσχεδίου αλλά και του διαλόγου με τα συνδικάτα. Παρουσιάσαμε ακόμα τις αντιδράσεις των οργανωμένων συνδικαλιστών αλλά και την οργανωμένη αντίδραση της εσωκομματικής αντιπολίτευσης του ΠΑΣΟΚ και την τελική τους εναντίωση, μέχρι την ολοκληρωτική απόσυρση του νομοσχεδίου από την κυβέρνηση. Τέλος, αναδείξαμε τα γνωρίσματα του εκσυγχρονιστικού λόγου στις προτάσεις και την επιχειρηματολογία της κυβέρνησης και αυτά του αντι-εκσυγχρονιστικού, αντίστοιχα στην επιχειρηματολογία των συνδικαλιστών και της εσωκομματικής αντιπολίτευσης, πραγματοποιώντας έτσι την επαλήθευση της ερευνητικής μας πρότασης.
description: The purpose of our diplomatic work, was to verify that through the lines of the juxtaposition for the reform of the system of social insurance, was noted a conflict between the modernizers belong to the government and the anti-modernizers of intraparty opposition of PASOK and the trade unionists. At the beginning, we analyzed key concepts for the better understanding of our issue, such as the welfare state, the liberalism and how accrue the modernization and the anti-modernization, and the syndicalism. Continuing, we presented and analyzed the government’s argument for the Bill an the social dialogue with the unions. Moreover, we presented both the reactions of organized trade unionists and intraparty opposition in PASOK and their final opposition and deny, until the complete withdrawal of the Bill by the government. Finally, we highlighted the attributes of modernization dialectic on the proposals and argument of the government and those of anti-modernization dialectic on the argument of trade unionists and the intraparty opposition, thus making the verification of our initial research proposal.
Rare thermal bubbles at the many-body localization transition from the Fock space point of view
Creators: name: De Tomasi, Giuseppe
name: Khaymovich, Ivan M.
name: Pollmann, Frank
name: Warzel, Simone
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we study the many-body localization (MBL) transition and relate it to the eigenstate structure in the Fock space. Besides the standard entanglement and multifractal probes, we introduce the radial probability distribution of eigenstate coefficients with respect to the Hamming distance in the Fock space from the wave function maximum and relate the cumulants of this distribution to the properties of the quasi-local integrals of motion in the MBL phase. We demonstrate non-self-averaging property of the many-body fractal dimension $D_q$ and directly relate it to the jump of $D_q$ as well as of the localization length of the integrals of motion at the MBL transition. We provide an example of the continuous many-body transition confirming the above relation via the self-averaging of $D_q$ in the whole range of parameters. Introducing a simple toy-model, which hosts ergodic thermal bubbles, we give analytical evidences both in standard probes and in terms of newly introduced radial probability distribution that the MBL transition in the Fock space is consistent with the avalanche mechanism for delocalization, i.e., the Kosterlitz-Thouless scenario. Thus, we show that the MBL transition can been seen as a transition between ergodic states to non-ergodic extended states and put the upper bound for the disorder scaling for the genuine Anderson localization transition with respect to the non-interacting case.
description: 13 pages, 5 figures, 94 references
Random walk on a polygon
Creators: name: Sarkar, Jyotirmoy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60G50 (Primary) 60G40 (Secondary)

description: A particle moves among the vertices of an $(m+1)$-gon which are labeled clockwise as $0,1,...,m$. The particle starts at 0 and thereafter at each step it moves to the adjacent vertex, going clockwise with a known probability $p$, or counterclockwise with probability $1-p$. The directions of successive movements are independent. What is the expected number of moves needed to visit all vertices? This and other related questions are answered using recursive relations.
description: Published at http://dx.doi.org/10.1214/074921706000000581 in the IMS Lecture Notes--Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
A Lower Bound on the Disconnection Time of a Discrete Cylinder
Creators: name: Dembo, Amir
name: Sznitman, Alain-Sol
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60J10; 60K35; 82C41

description: We study the asymptotic behavior for large N of the disconnection time T_N of simple random walk on a discrete cylinder with base a d-dimensional discrete torus of side-length N. When d is sufficiently large, we are able to substantially improve the lower bounds obtained by the authors in a previous article when d is bigger or equal to 2. We show here that the laws of N^(2d)/T_N are tight.
description: 17 pages, this article appears in the volume In and Out of Equilibrium 2, V. Sidoravicius and M. E. Vares Editors
Status of a DEPFET pixel system for the ILC vertex detector
Creators: name: Trimpl, M.
name: Koch, M.
name: Kohrs, R.
name: Krueger, H.
name: Lodomez, P.
name: Reuen, L.
name: Sandow, C.
name: Toerne, E. v.
name: Velthuis, J. J.
name: Wermes, N.
name: Andricek, L.
name: Moser, H. G.
name: Richter, R. H.
name: Lutz, G.
name: Giesen, F.
name: Fischer, P.
name: Peric, I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have developed a prototype system for the ILC vertex detector based on DEPFET pixels. The system operates a 128x64 matrix (with ~35x25 square micron large pixels) and uses two dedicated microchips, the SWITCHER II chip for matrix steering and the CURO II chip for readout. The system development has been driven by the final ILC requirements which above all demand a detector thinned to 50 micron and a row wise read out with line rates of 20MHz and more. The targeted noise performance for the DEPFET technology is in the range of ENC=100 e-. The functionality of the system has been demonstrated using different radioactive sources in an energy range from 6 to 40keV. In recent test beam experiments using 6GeV electrons, a signal-to-noise ratio of S/N~120 has been achieved with present sensors being 450 micron thick. For improved DEPFET systems using 50 micron thin sensors in future, a signal-to-noise of 40 is expected.
description: Invited poster at the International Symposium on the Development of Detectors for Particle, AstroParticle and Synchrotron Radiation Experiments, Stanford CA (SNIC06) 6 pages, 12 eps figures
The Source of Hydrogen in Earth's Building Blocks
Creators: name: Barrett, Thomas J
name: Bryson, James F. J.
name: Geraki, Kalotina
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Despite being pivotal to the habitability of our planet, the process by which Earth gained its present-day hydrogen budget is unclear. Due to their isotopic similarity to terrestrial rocks across a range of elements, the meteorite group that is thought to best represent Earth's building blocks is the enstatite chondrites (ECs). Because of ECs' nominally anhydrous mineralogy, these building blocks have long been presumed to have supplied negligible hydrogen to the proto-Earth. However, recent bulk compositional measurements suggest that ECs may unexpectedly contain enough hydrogen to readily explain Earth's present-day water abundance. Together, these contradictory findings mean the contribution of ECs to Earth's water budget is currently unclear. As such, it is uncertain whether appreciable water is a systematic outcome of Earth's formation. Here, we explore the amount of hydrogen in ECs as well as the phase that may carry this element using sulfur X-ray absorption near edge structure (S-XANES) spectroscopy. We find that most (~80 wt%) of the measured bulk hydrogen concentration of these meteorites is bonded to sulfur. Moreover, the concentration of the S-H bond is intimately linked to the abundance of micrometre-scale pyrrhotite (Fe1-xS, 0
description: 23 pages, 12 figures
Aligning geographic entities from historical maps for building knowledge graphs
Creators: name: Sun, Kai
name: Hu, Yingjie
name: Song, Jia
name: Zhu, Yunqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Historical maps contain rich geographic information about the past of a region. They are sometimes the only source of information before the availability of digital maps. Despite their valuable content, it is often challenging to access and use the information in historical maps, due to their forms of paper-based maps or scanned images. It is even more time-consuming and labor-intensive to conduct an analysis that requires a synthesis of the information from multiple historical maps. To facilitate the use of the geographic information contained in historical maps, one way is to build a geographic knowledge graph (GKG) from them. This paper proposes a general workflow for completing one important step of building such a GKG, namely aligning the same geographic entities from different maps. We present this workflow and the related methods for implementation, and systematically evaluate their performances using two different datasets of historical maps. The evaluation results show that machine learning and deep learning models for matching place names are sensitive to the thresholds learned from the training data, and a combination of measures based on string similarity, spatial distance, and approximate topological relation achieves the best performance with an average F-score of 0.89.
Dilepton mass spectra in p+p collisions at sqrt(s)= 200 GeV and the contribution from open charm
Creators: name: PHENIX Collaboration
name: Adare, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The PHENIX experiement has measured the electron-positron pair mass spectrum from 0 to 8 GeV/c^2 in p+p collisions at sqrt(s)=200 GeV. The contributions from light meson decays to e^+e^- pairs have been determined based on measurements of hadron production cross sections by PHENIX. They account for nearly all e^+e^- pairs in the mass region below 1 GeV/c^2. The e^+e^- pair yield remaining after subtracting these contributions is dominated by semileptonic decays of charmed hadrons correlated through flavor conservation. Using the spectral shape predicted by PYTHIA, we estimate the charm production cross section to be 544 +/- 39(stat) +/- 142(syst) +/- 200(model) μb, which is consistent with QCD calculations and measurements of single leptons by PHENIX.
description: 375 authors from 57 institutions, 18 pages, 4 figures, 2 tables. Submitted to Physics Letters B. v2 fixes technical errors in matching authors to institutions. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
Different topologies for a herding model of opinion
Creators: name: Schwammle, V.
name: Gonzalez, M. C.
name: Moreira, A. A.
name: Andrade, J. S. Jr.
name: Herrmann, H. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Understanding how opinions spread through a community or how consensus emerges in noisy environments can have a significant impact on our comprehension of social relations among individuals. In this work a model for the dynamics of opinion formation is introduced. The model is based on a nonlinear interaction between opinion vectors of agents plus a stochastic variable to account for the effect of noise in the way the agents communicate. The dynamics presented is able to generate rich dynamical patterns of interacting groups or clusters of agents with the same opinion without a leader or centralized control. Our results show that by increasing the intensity of noise, the system goes from consensus to a disordered state. Depending on the number of competing opinions and the details of the network of interactions, the system displays a first- or a second-order transition. We compare the behavior of different topologies of interactions: one-dimensional chains, and annealed and complex networks.
description: 6 pages, 8 figures
Aeschna mixta Latreille 1805
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Aeshnidae
Aeschna
Aeschna mixta

description: 30. Aeschna mixta Latr.
Transcaucasien, Kirgisensteppe (Motschulsky); In ganz Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
Οι δραστηριότητες της Εκκλησίας της Σερβίας στο διαθρησκειακό διάλογο:
Creators: name: Grujicic, Petar Vojin (Γκρούγιτσιτς, Πέτρος)
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Εκκλησία
Θρησκεία
Διάλογος
Church
Religion
Dialogue

description: Σκοπός της μελέτης αυτής ήταν η παρουσίαση των διαχριστιανικών και διαθρησκειακών δραστηριοτήτων της Εκκλησίας της Σερβίας. Αναφερθήκαμε αρχικά στις βασικές θεολογικές αρχές στις οποίες βασίζετε ο σύγχρονος διαθρησκειακός διάλογος τονίζοντας τη σπουδαιότητα του διαθρησκειακού διαλόγου ως νέου ιεραποστολικού παραδείγματος. Στη συνέχεια παρουσιάσαμε τις οικουμενικού χαρακτήρα δραστηριότητες της Εκκλησίας της Σερβίας από τις αρχές του εικοστού αιώνα έως σήμερα – συμμετοχή της στους διαχριστιανικούς οργανισμούς, καθώς και η θεολογική στάση της απέναντι στη συμμετοχή στο οικουμενικό διάλογο. Επίσης, αναφερθήκαμε αναλυτικά και στις σχέσεις και επαφές της με την εκεί ιστάμενη Ρωμαιοκαθολική Εκκλησία. Παρουσιάσαμε την ιστορίας της Εκκλησίας της Σερβίας με ιδιαίτερη έμφαση στις τελευταίες δεκαετίες του εικοστού αιώνα και περιγράψαμε τις κοινωνικο-πολιτικές συγκυρίες στις οποίες βρέθηκε κατά την προπολεμική, πολεμική και μεταπολεμική περίοδο. Ιδιαίτερη έμφαση δώσαμε στις διαθρησκειακές ενέργειες της, η οποίες έγιναν και συνεχίζουν να γίνονται κυρίως με σκοπό να αποτραπούν οι πολεμικές δράσεις και να προωθηθούν οι καλές σχέσεις συνύπαρξης μεταξύ των λαών των διαφορετικών κοινοτήτων της περιοχής της πρώην Γιουγκοσλαβικής Ομοσπονδίας.
description: The purpose of this study was to present the inter-Christian and inter-religious activities of the Serbian Church. We originally referred to the basic theological principles on which the modern inter-religious dialogue emphasizes the importance of inter-religious dialogue as a new missionary paradigm. Then we presented the ecumenical activities of the Serbian Church since the beginning of the twentieth century up to now – including its participation in inter-Christian organizations, as well as the theological stance towards participation in ecumenical dialogue. We also analytically reported its relations and contacts with the Roman Catholic Church. We presented the history of the Serbian Church, with particular emphasis on the latter decades of the twentieth century and described the socio-political contexts in which it was found in the prewar, war and postwar period. We particular emphasized its interreligious activities, which were and still are mainly designed to prevent military action and promote good relations of coexistence among people of different communities of the Former Yugoslav Federation.
Calopteryx virgo Linnaeus 1758
Creators: name: Hagen, H.
Publisher: name: Zenodo
Year: 1863
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Calopterygidae
Calopteryx
Calopteryx virgo

description: 33. Calopteryx virgo L.
 Klein-Asien, Agr. colchicum Eichwald, aus Mingrelien; ganz Europa.
description: Published as part of Hagen, H., 1863, Die Odonaten- und Nenropteren-Fauna Syriens und Klein-Asiens, pp. 193-199 in Wiener Entomologische Monatschrift 7 on page 197, DOI: 10.5281/zenodo.3528093
The formation of molecular clouds in spiral galaxies
Creators: name: Dobbs, C. L.
name: Bonnell, I. A.
name: Pringle, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Smoothed Particle Hydrodynamics (SPH) simulations of molecular cloud formation in spiral galaxies. These simulations model the response of a non-self-gravitating gaseous disk to a galactic potential. The spiral shock induces high densities in the gas, and considerable structure in the spiral arms, which we identify as molecular clouds. We regard the formation of these structures as due to the dynamics of clumpy shocks, which perturb the flow of gas through the spiral arms. In addition, the spiral shocks induce a large velocity dispersion in the spiral arms, comparable with the magnitude of the velocity dispersion observed in molecular clouds. We estimate the formation of molecular hydrogen, by post-processing our results and assuming the gas is isothermal. Provided the gas is cold ($T\le100$ K), the gas is compressed sufficiently in the spiral shock for molecular hydrogen formation to occur in the dense spiral arm clumps. These molecular clouds are largely confined to the spiral arms, since most molecular gas is photodissociated to atomic hydrogen upon leaving the arms.
description: 13 pages, 16 figures, accepted for publication in MNRAS
DiPair: Fast and Accurate Distillation for Trillion-Scale Text Matching and Pair Modeling
Creators: name: Chen, Jiecao
name: Yang, Liu
name: Raman, Karthik
name: Bendersky, Michael
name: Yeh, Jung-Jung
name: Zhou, Yun
name: Najork, Marc
name: Cai, Danyang
name: Emadzadeh, Ehsan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Pre-trained models like BERT (Devlin et al., 2018) have dominated NLP / IR applications such as single sentence classification, text pair classification, and question answering. However, deploying these models in real systems is highly non-trivial due to their exorbitant computational costs. A common remedy to this is knowledge distillation (Hinton et al., 2015), leading to faster inference. However -- as we show here -- existing works are not optimized for dealing with pairs (or tuples) of texts. Consequently, they are either not scalable or demonstrate subpar performance. In this work, we propose DiPair -- a novel framework for distilling fast and accurate models on text pair tasks. Coupled with an end-to-end training strategy, DiPair is both highly scalable and offers improved quality-speed tradeoffs. Empirical studies conducted on both academic and real-world e-commerce benchmarks demonstrate the efficacy of the proposed approach with speedups of over 350x and minimal quality drop relative to the cross-attention teacher BERT model.
description: 13 pages. Accepted to Findings of EMNLP 2020