cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spatial-temporal data mining procedure: LASR
Creators: name: Wang, Xiaofeng
name: Sun, Jiayang
name: Bogie, Kath
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60K35, 60K35 (Primary) 60K35 (Secondary)

description: This paper is concerned with the statistical development of our spatial-temporal data mining procedure, LASR (pronounced ``laser''). LASR is the abbreviation for Longitudinal Analysis with Self-Registration of large-$p$-small-$n$ data. It was motivated by a study of ``Neuromuscular Electrical Stimulation'' experiments, where the data are noisy and heterogeneous, might not align from one session to another, and involve a large number of multiple comparisons. The three main components of LASR are: (1) data segmentation for separating heterogeneous data and for distinguishing outliers, (2) automatic approaches for spatial and temporal data registration, and (3) statistical smoothing mapping for identifying ``activated'' regions based on false-discovery-rate controlled $p$-maps and movies. Each of the components is of interest in its own right. As a statistical ensemble, the idea of LASR is applicable to other types of spatial-temporal data sets beyond those from the NMES experiments.
description: Published at http://dx.doi.org/10.1214/074921706000000707 in the IMS Lecture Notes--Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Frame-dragging effects in a gravitational quantum field theory
Creators: name: Gao, Dongfeng
name: Ni, Wei-Tou
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Analogous to magnetism in electrodynamics, it is gravitomagnetism in relativistic gravity. Since gravity determines locally inertial frames, in general relativity (GR) and other relativistic theories of gravity, frame-dragging with source motion plays a key role in gravitomagnetism. Recently, Wu has put forward a gauge theory of gravity, called the gravitational quantum field theory (GQFT), with the gravitational force and the spin gauge force described by the gauge fields. Gao {\it et al.} ({\it Phy. Rev. D 109, 064072}) have derived the Shapiro time delay in the GQFT and given an empirical constraint from the Cassini experimental result on the dimensionless GQFT parameter $γ_W$ to be $(2.1\pm 2.3)\times 10^{-5}$. In this work, we derive the frame-dragging Lense-Thirring effects in the GQFT. The current precision of LARES-LAGEOS Lense-Thirring measurement gives a constraint on $|γ_W|$ to be less than $2\times 10^{-2}$. This constraint is consistent with, but subdominant to, the Cassini experimental constraint. As a candidate of quantum gravity, we do not expect that the deviation from the GR value ($γ_W=0$) is large, classically. With the launch of LARES 2, the precision of the Lense-Thirring measurement is expected to increase by one order of magnitude in a couple of years. As to the Shapiro effect, current technologies have the capability to measure the $γ_W$ parameter to a precision of $10^{-9}$.
description: 7 pages
Supplemental Material for Menin et al., 2019
Creators: name: Menin, Luca
name: Colombo, Chiara Vittoria
name: Maestrini, Giorgia
name: Longhese, Maria Pia
name: Clerici, Michela
Publisher: name: Figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Four Supporting Figures and two Supporting Tables to "Tel1/ATM Signaling to the Checkpoint Contributes to Replicative Senescence in the Absence of Telomerase"
The Rest-frame Optical Colors of 99,000 SDSS Galaxies
Creators: name: Smolcic, V.
name: Ivezic, Z.
name: Gacesa, M.
name: Rakos, K.
name: Pavlovski, K.
name: Ilijic, S.
name: Obric, M.
name: Lupton, R. H.
name: Schlegel, D.
name: Kauffmann, G.
name: Tremonti, C.
name: Brinchmann, J.
name: Charlot, S.
name: Heckman, T. M.
name: Knapp, G. R.
name: Gunn, J. E.
name: Brinkmann, J.
name: Csabai, I.
name: Fukugita, M.
name: Loveday, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We synthesize the rest-frame Stroemgren colors using SDSS spectra for 99,088 galaxies selected from Data Release 1. This narrow-band ~200 AA photometric system (uz, vz, bz, yz), first designed for the determination of effective temperature, metallicity and gravity of stars, measures the continuum spectral slope of galaxies in the rest-frame 3200-5800 AA wavelength range. Galaxies form a remarkably narrow locus (~0.03 mag) in the resulting color-color diagram. The Bruzual & Charlot population synthesis models suggest that the position of a galaxy along this locus is controlled by a degenerate combination of metallicity and age of the dominant stellar population. Galaxy distribution along the locus is bimodal, with the local minimum corresponding to an ~1 Gyr old single stellar population. The position perpendicular to the locus is independent of metallicity and age, and reflects the galaxy's dust content, as implied by both the models and the statistics of IRAS detections. A comparison of this locus with the galaxy locus in the H_delta-D_n(4000) diagram, utilized by Kauffmann et al. (2003) to estimate stellar masses, reveals a tight correlation, although the two analyzed spectral ranges barely overlap. Overall, the galaxy spectral energy distribution in the entire UV to near-IR range can be described as a single-parameter family with an accuracy of 0.1 mag, or better. This nearly one-dimensional distribution of galaxies in the multi-dimensional space of measured parameters strongly supports the conclusion of Yip et al. (2004), based on a principal component analysis, that SDSS galaxy spectra can be described by a small number of eigenspectra. Apparently, the contributions of stellar populations that dominate the optical emission from galaxies are combined in a simple and well-defined way.
description: Accepted for publication in MNRAS; 19 pages, 28 color figures
Terahertz generation via all-optical quantum control in 2D and 3D materials
Creators: name: Jana, Kamalesh
name: de Souza, Amanda B. B.
name: Mi, Yonghao
name: Gholam-Mirzaei, Shima
name: Ko, Dong Hyuk
name: Tripathi, Saroj R.
name: Sederberg, Shawn
name: Gupta, James A.
name: Corkum, Paul B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Using optical technology for current injection and electromagnetic emission simplifies the comparison between materials. Here, we inject current into monolayer graphene and bulk gallium arsenide (GaAs) using two-color quantum interference and detect the emitted electric field by electro-optic sampling. We find the amplitude of emitted terahertz (THz) radiation scales in the same way for both materials even though they differ in dimension, band gap, atomic composition, symmetry and lattice structure. In addition, we observe the same mapping of the current direction to the light characteristics. With no electrodes for injection or detection, our approach will allow electron scattering timescales to be directly measured. We envisage that it will enable exploration of new materials suitable for generating terahertz magnetic fields.
description: 4 figures
Spectroscopy of SMC Wolf-Rayet Stars Suggests that Wind-Clumping does not Depend on Ambient Metallicity
Creators: name: Marchenko, S. V.
name: Foellmi, C.
name: Moffat, A. F. J.
name: Martins, F.
name: Bouret, J. -C.
name: Depagne, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The mass-loss rates of hot, massive, luminous stars are considered a decisive parameter in shaping the evolutionary tracks of such stars and influencing the interstellar medium on galactic scales. The small-scale structures (clumps) omnipresent in such winds may reduce empirical estimates of mass-loss rates by an evolutionarily significant factor of >=3. So far, there has been no direct observational evidence that wind-clumping may persist at the same level in environments with a low ambient metallicity, where the wind-driving opacity is reduced. Here we report the results of time-resolved spectroscopy of three presumably single Population I Wolf-Rayet stars in the Small Magellanic Cloud, where the ambient metallicity is ~1/5 Z_Sun.We detect numerous small-scale emission peaks moving outwards in the accelerating parts of the stellar winds.The general properties of the moving features, such as their velocity dispersions,emissivities and average accelerations, closely match the corresponding characteristics of small-scale inhomogeneities in the winds of Galactic Wolf-Rayet stars.
description: 9 pages, 3 figures; accepted by ApJ Letters
title: Tracking effects of climatic variation on interspecific competition and top down control using multidisciplinary datasets: Baltic Sea herring (Clupea harengus) and sprat (Sprattus sprattus) in the southern Baltic Sea.
Creators: name: Bernreuther, Matthias
name: Peters, Janna
name: Möllmann, Christian
name: Temming, Axel
name: Stepputtis, Daniel
name: Renz, Jasmin
Publisher: name: ASC 2013 - Theme session N
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The interspecific competition of most important pelagic fish species in the Baltic Sea (herring Clupea harengus and sprat Sprattus sprattus), and the impact on the prey species, varies with changing environmental conditions in the Baltic Sea. We use a highly resolved spatio-temporal multidisciplinary dataset to quantify the competition between, and the predation impact of, herring and sprat on the dominating zooplankton species in the southern Baltic Sea during a period spanning a change in hydrographic conditions resulting from a major inflow of saline and oxygenated water. We compare the predator consumption to prey biomass and production rates over an annual cycle with an almost monthly coverage of the Bornholm Basin, using oceanographic conditions, spatially resolved zooplankton sampling, predator stock size and distribution, and an extensive stomach content sampling program. Our results show an intense competition for food resources between herring and sprat, with variations based on season, migration patterns, and hydrographic conditions. The impact was strongest in the summer, but still significant in the winter despite lower numbers of feeding fish and reduced individual consumption. The changes in predation and competition as a result of the change in hydrographic conditions is presented and discussed.
Les p-values comme votes d'experts
Creators: name: Morel, Guy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62A, 62C, 62P

description: The p-values are often implicitly used as a measure of evidence for the hypotheses of the tests. This practice has been analyzed with different approaches. It is generally accepted for the one-sided hypothesis problem, but it is often criticized for the two-sided hypothesis problem. We analyze this practice with a new approach to statistical inference. First we select good decision rules without using a loss function, we call them experts. Then we define a probability distribution on the space of experts. The measure of evidence for a hypothesis is the inductive probability of experts that decide this hypothesis.
The AstroCamp Project
Creators: name: Martins, C. J. A. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Popular Physics (physics.pop-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: This contribution describes the concept, main structure and goals, and some highlighted outcomes, of the AstroCamp -- an international academic excellence program in the field of astronomy and physics created in 2012 and organized by Centro de Astrof\'ısica da Universidade do Porto (CAUP) together with the Paredes de Coura municipality and several national and international partners.
description: To appear in the Proceedings of IAU Symposium 367
title: DECOLONIZING GAMES
title: DESCOLONIZANDO OS JOGOS
titleType: AlternativeTitle
Creators: name: Trammell, Aaron
name: Ferreira, Suiane Costa
Publisher: name: Práticas e Cuidado: Revista de Saúde Coletiva
Year: 2024
Subjects: Jogo
Descolonização
Racismo
Educação
Game
Decolonization
Racism
Education

description: Introduction: "Práticas e Cuidado: Revista de Saúde Coletiva" is pleased to publish a lecture from our special section Conferences/Lectures, which aims to broaden the dissemination of debates and research on issues pertaining to contemporaneity and their interaction with education and health. Aim: The aim of this section was to promote a dialogue with researchers who study the world of games and their relationship with education, particularly with regard to the urgent need to decolonize games. Method: Our interviewee is Dr. Aaron Trammel, Associate Professor of Computer Science at the University of California, Irvine. This lecture was mediated by Dr. Suiane Costa, a researcher in the field of games at the interface with health and education. Results: Trammell addressed contemporary debates about how games promote the values of white supremacy and privilege, becoming a colonizing media and reproducing stereotypes, racism and violence against minority groups.
description: Introdução: A Práticas e Cuidado: Revista de Saúde Coletiva tem a satisfação de publicar uma palestra da nossa seção especial Conferências/Palestra que se propõe a ampliar a divulgação de debates e pesquisas que trazem questões inerentes à contemporaneidade e sua interface com a educação e a saúde. Objetivo: Essa seção teve como objetivo promover o diálogo com pesquisadoras e pesquisadores que se dedicam aos estudos sobre o mundo dos jogos e sua interface com a educação, principalmente sobre a premente necessidade da descolonização dos jogos. Método: Nosso palestrante é o Dr. Aaron Trammel, que é professor associado de Informática, da Universidade da Califórnia Irvine. Esta palestra foi mediada pela Dra. Suiane Costa, pesquisadora da área de jogos na interface com saúde e educação. Resultados: Trammell abordou debates contemporâneos sobre como os jogos promovem os valores da supremacia e privilégio branco, consituindo-se em mídias colonizadoras e reprodutoras de estereótipos, racismo e violências contra grupos minorizados.

 

Como citar conforme a ABNT: TRAMMELL, A.; FERREIRA, S. C. Descolonizando os jogos. Práticas e Cuidado: Revista de Saúde Coletiva, v. 5, p. e20563, 2024. DOI: 10.5281/zenodo.13826130 Disponível em: https://revistas.uneb.br/index.php/saudecoletiva/article/view/20563
title: A detailed characterisation the spawning distribution of Blue Whiting
Creators: name: Pointin, Fabien
name: Payne, Mark R.
Publisher: name: ASC 2013 - Theme session N
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. We provide here the strongest evidence to date supporting the existence of two independent Blue Whiting (Micromesistius poutassou Risso, 1827) stocks in the North Atlantic. In spite of extensive data collected in conjunction with the fishery and management of this species, the population structure of Blue Whiting is poorly understood. In particular, genetic, otolith and drift modelling studies point towards the existence of two stocks, but observations of adult distributions point towards a single stock. A paradox therefore arises in attempting to reconcile these two pieces of information. Here we analyse 1100 observations of Blue Whiting larvae from the Continuous Plankton Recorder (CPR) from 1948‐2005 using modern statistical techniques. We show a clear separation between a Northern spawning component, in the Rockall trough, and a Southern one, in the Porcupine Seabight. We further show a difference in the timing of spawning between these components of at least a month, and statistically significant differences in interannual variability. The results, taken with previous studies, therefore support the two‐stock hypothesis. Furthermore, we resolve the spawning paradox by showing that the acoustic observations cited in support of the single‐component model are not capable of resolving both stocks, as they occur too late in the year and do not extend sufficiently far south to cover the southern component.
Asymptotic behavior of symmetric ideals: A brief survey
Creators: name: Juhnke-Kubitzke, Martina
name: Van Le, Dinh
name: Römer, Tim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13A50, 13C15, 13D02, 13F20, 16P70, 16W22

description: Recently, chains of increasing symmetric ideals have attracted considerable attention. In this note, we summarize some results and open problems concerning the asymptotic behavior of several algebraic and homological invariants along such chains, including codimension, projective dimension, Castelnuovo-Mumford regularity, and Betti tables.
Cosmic-ray propagation and interactions in the Galaxy
Creators: name: Strong, Andrew W.
name: Moskalenko, Igor V.
name: Ptuskin, Vladimir S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We survey the theory and experimental tests for the propagation of cosmic rays in the Galaxy up to energies of 10^15 eV. A guide to the previous reviews and essential literature is given, followed by an exposition of basic principles. The basic ideas of cosmic-ray propagation are described, and the physical origin of its processes are explained. The various techniques for computing the observational consequences of the theory are described and contrasted. These include analytical and numerical techniques. We present the comparison of models with data including direct and indirect - especially gamma-ray - observations, and indicate what we can learn about cosmic-ray propagation. Some particular important topics including electrons and antiparticles are chosen for discussion.
description: 39 pages, 29 figures; Solicited by the Annual Review of Nuclear and Particle Science (v.57), manuscript submitted Jan 2007
title: Recent changes in migration and distribution of capelin in the Iceland-East Greenland-Jan Mayen area and their effect on managing the fisheries.
Creators: name: Gudmundsdottir, Asta
name: Sigurdsson, Thorsteinn
name: Jonsson, Sigurdur Th.
name: Sveinbjornsson, Sveinn
Publisher: name: ASC 2013 - Theme session N
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Capelin, Mallotus villosus (Müller), in the Iceland-East Greenland-Jan Mayen area is a short lived cold water species and only enters into warm Atlantic water for spawning. Spawning mortality is believed to be almost complete and the fishery is focused on pre-spawning fish, mainly from one year class (age 3). In the beginning of the 2000s a western displacement of the nursery and feeding area occurred. The spawning area, however, has remained the same. Although spawning time remains the same, return migration from the feeding areas in the Iceland Sea occurs 1-2 months later than previously with a resulting delay of the spawning migration. Capelin abundance has also decreased during this period. These changes coincide with climate changes. As consequences of this delayed migration, acoustic assessment of the spawning stock, which is the basis for the final advice on seasonal TAC, has been problematic.
Διακλαδώσεις λύσεων πολλαπλών παλμών σε συστήματα διαφορικών εξισώσεων με μερικές παραγώγους:
Creators: name: Μυλωνάς, Ιωάννης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Δυναμικά συστήματα
Χάος
Ομοκλινικές Τροχιές
Dynamical System
Chaos
Homoclinic orbits

description: Ένα από τα πλέον ενδιαφέροντα σύγχρονα προβλήματα της δυναμικής φυσικών, βιολογικών και οικονομικών συστημάτων είναι η δυνατότητα τους να εμφανίζουν ακανόνιστη ή όπως συχνά λέμε ακριβέστερα χαοτική συμπεριφορά. Όταν μάλιστα τα συστήματα αυτά μπορούν να περιγραφούν από μη γραμμικές εξισώσεις ή εξισώσεις διαφορών, έχει αναπτυχθεί τα τελευταία 50 χρόνια μια εκτενής και συστηματική μαθηματική προσέγγιση μέσω της οποίας η χαοτική συμπεριφορά μπορεί να μελετηθεί με ακρίβεια και αυστηρότητα.Στην παρούσα εργασία θα εξετάσουμε για το τι συμβαίνει όταν συζεύξουμε δυο Μη-Γραμμικές Εξισώσεις Schrödinger (NLS) , εξετάζοντας τις με την βοήθεια της Θεωρίας Melnikov. Η εργασία θα έχει την εξής δομή.Στο πρώτο κεφάλαιο θα παρουσιάσουμε κάποιες εισαγωγικές έννοιες. Με μια σύντομη εισαγωγή θα προσπαθήσουμε να εξηγήσουμε τι είναι σολιτόνιο, να παρουσιάσουμε την Μη Γραμμική Εξίσωσει Schrödinger (NLS) αλλά και να δώσουμε μια γενική περιγραφή της εργασίας.Στο δεύτερο κεφάλαιο θα εισάγουμε τις έννοιες της απεικόνισης Poincaré και της ομοκλινικής τροχιάς και θα αναπτύξουμε την θεωρία ύπαρξης ομοκλινικών τροχιών που πρώτος διατύπωσε ο Ρώσος Μαθηματικός V.K. Melnikov.Στο τρίτο κεφάλαιο θα παρουσιάσουμε την Αναλυτική αλλά και την Γεωμετρική μέθοδο για τον υπολογισμό του Διανύσματος Melnikov.Στο τέταρτο κεφάλαιο θα συζεύξουμε δυο Μη-Γραμμικές Εξισώσεις Schrödinger (NLS) θα δημιουργήσουμε ένα οκτώ-διάστατο σύστημα και χρησιμοποιώντας την Γεωμετρική μέθοδο θα εξετάσουμε την συμπεριφορά του.
description: One of the most interesting contemporary problems of dynamic of physical, biological and economic systems is the ability to exhibit erratic or as frequently say chaotic behavior. When even these systems can be described by nonlinear equations or difference equations has been developed over the last 50 years an extensive and systematic mathematical approach through which the chaotic behavior can be studied with precision. In this paper will examine what happen when couple two Non-Linear Equations Schrödinger (NLS), and examining them with the Melnikov Theory. The work is organized as follows. In the first chapter will present some introductory concepts, with a brief introduction will try to explain what is soliton, Non-linear Schrödinger equation (NLS) and we will give a general description of the work. In the second chapter we will introduce the concepts of Poincaré map, homoclinic ordit and we will develop the theory of homoclinic orbits who first was introduced by the Russian mathematician V.K. Melnikov. In the third chapter we will present the analytical and the geometrical method for calculating the Melnikov vector. In the fourth chapter we will couple two Non-Linear Schrödinger Equation (NLS) these will create an eight-dimensional system and we will use the geometric method to examine its behavior
Tip of the Red Giant Branch Distances. II. Zero-Point Calibration
Creators: name: Rizzi, Luca
name: Tully, R. Brent
name: Makarov, Dmitry
name: Makarova, Lidia
name: Dolphin, Andrew E.
name: Sakai, Shoko
name: Shaya, Edward J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The luminosity of the Tip of the Red Giant Branch (TRGB) provides an excellent measure of galaxy distances and is easily determined in the resolved images of nearby galaxies observed with Hubble Space Telescope. There is now a large amount of archival data relevant to the TRGB methodology and which offers comparisons with other distance estimators. Zero-point issues related to the TRGB distance scale are reviewed in this paper. Consideration is given to the metallicity dependence of the TRGB, the transformations between HST flight systems and Johnson-Cousins photometry, the absolute magnitude scale based on Horizontal Branch measurements, and the effects of reddening. The zero-point of the TRGB is established with a statistical accuracy of 1%, modulo the uncertainty in the magnitude of the Horizontal Branch, with a typical rms uncertainty of 3% in individual galaxy distances at high Galactic latitude. The zero-point is consistent with the Cepheids period-luminosity relation scale but invites reconsideration of the claimed metallicity dependence with that method. The maser distance to NGC 4258 is consistent with TRGB but presently has lower accuracy.
description: accepted for publication into ApJ
title: Βιώσιμη παραγωγικότητα και ανθρώπινη ευημερία: Σύγχρονες πρακτικές σε τομείς της σύγχρονης ζωής
title: Sustainable productivity and human well-being: Modern practices in sectors of modern life
Creators: name: Νικολαου Αικατερινη
Publisher: name: Technical University of Crete
Year: 2024

description: Η παρούσα διπλωματική εξετάζει τη διασύνδεση της βιώσιμης παραγωγικότητας με βασικές πτυχές της ανθρώπινης ζωής, όπως η γεωργία, η υγεία, ο τουρισμός και η επιχειρηματικότητα, μέσα από το πρίσμα της κυκλικής οικονομίας, της πράσινης χρηματοδότησης και των πράσινων κτιρίων. Η μελέτη υιοθετεί μια ολοκληρωμένη προσέγγιση, ενσωματώνοντας θεωρητικά πλαίσια, εμπειρικές αναλύσεις και μελέτες περιπτώσεων για να διερευνήσει πώς οι αρχές της κυκλικής οικονομίας, οι μηχανισμοί πράσινης χρηματοδότησης και οι πρακτικές βιώσιμης δόμησης συμβάλλουν στη βελτίωση της παραγωγικότητας σε διάφορους τομείς. Με την ανάλυση του ρόλου αυτών των εννοιών βιωσιμότητας στη διαχείριση της αλυσίδας εφοδιασμού, την εταιρική κοινωνική ευθύνη (ΕΚΕ) και την υιοθέτηση ανανεώσιμων πηγών ενέργειας, η διπλωματική αποσκοπεί στην παροχή πληροφοριών σχετικά με τις οδούς για την επίτευξη των στόχων βιώσιμης ανάπτυξης με παράλληλη προώθηση της οικονομικής ανάπτυξης. Βασιζόμενη σε διεπιστημονικές προοπτικές και παραδείγματα από τον πραγματικό κόσμο, η έρευνα υπογραμμίζει τη σημασία της ενσωμάτωσης των προαναφερόμενων πρακτικών για την ενίσχυση της παραγωγικότητας και την προώθηση της ανθρώπινης ευημερίας αλλά και πως εμφανίζονται στους τομείς της γεωργίας, της υγείας, τους τουρισμού και της επιχειρηματικότητας τόσο εντός όσο και εκτός της Ευρώπης.
description:  This thesis examines the interconnection of sustainable productivity with key aspects of human life, such as agriculture, health, tourism, engineering and entrepreneurship, through the lens of the circular economy, green finance and green buildings. The study adopts an integrated approach, integrating theoretical frameworks, empirical analyses and case studies to explore how circular economy principles, green finance mechanisms and sustainable building practices contribute to improving productivity in different sectors. By analysing the role of these sustainability concepts in supply chain management, corporate social responsibility (CSR) and renewable energy adoption, the thesis aims to provide information on pathways to achieve sustainable development goals while promoting economic growth. Drawing on interdisciplinary perspectives and real-world examples, the research highlights the importance of integrating the aforementioned practices to enhance productivity and promote human well-being and how they are occurring in the fields of agriculture, health, tourism and entrepreneurship both within and outside Europe.
Data--driven Image Restoration with Option--driven Learning for Big and Small Astronomical Image Datasets
Creators: name: Jia, Peng
name: Ning, Ruiyu
name: Sun, Ruiqi
name: Yang, Xiaoshan
name: Cai, Dongmei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Image restoration methods are commonly used to improve the quality of astronomical images. In recent years, developments of deep neural networks and increments of the number of astronomical images have evoked a lot of data--driven image restoration methods. However, most of these methods belong to supervised learning algorithms, which require paired images either from real observations or simulated data as training set. For some applications, it is hard to get enough paired images from real observations and simulated images are quite different from real observed ones. In this paper, we propose a new data--driven image restoration method based on generative adversarial networks with option--driven learning. Our method uses several high resolution images as references and applies different learning strategies when the number of reference images is different. For sky surveys with variable observation conditions, our method can obtain very stable image restoration results, regardless of the number of reference images.
description: 11 pages. Submitted to MNRAS with minor revision
Περιβάλλον και διεθνείς σχέσεις: το φαινόμενο της πράσινης δημοσιογραφίας
Creators: name: Σαββάκης, Ευθύμιος Σάββα
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Δημοσιογραφία
Περιβάλλον
Διεθνείς σχέσεις
Journalism
Environment
International relationships

description: Ο 21ος αιώνας βρήκε το διεθνές οικονομικό και πολιτικό σύστημα να βαδίζει προς την κατεύθυνση της παγκοσμιοποίησης. Η σχετική αποδυνάμωση του ρόλου του κράτους - έθνους, η ανάπτυξη της διασυνοριακής παραγωγής, η απορρύθμιση και η αύξηση της αλληλεξάρτησης μεταξύ των κρατών και των οικονομιών καθώς κι η σύναψη περιφερειακών και διαπεριφερειακών συνεργασιών σηματοδοτούν αναμφίβολα μια νέα εποχή και επηρεάζουν τόσο τη δομή όσο και τη λειτουργία των διεθνών σχέσεων. Μέσα στις μεταβαλλόμενες αυτές συνθήκες το περιβάλλον επαναπροσδιορίζει τη θέση του στη διεθνή ατζέντα και ιεραρχείται στις παγκόσμιες προτεραιότητες των πολιτικών ηγεσιών. Θέματα, όπως η «περιβαλλοντική ασφάλεια» και η «πράσινη δημοσιογραφία» αποκτούν αίφνης μείζονα ρόλο στις τρεις διαστάσεις της ενημερωτικής πραγματικότητας (εθνική, διεθνή και παγκόσμια) και μέσα στην «τραγωδία των κοινών αγαθών» οι χώρες καλούνται να αναπτύξουν τη «πράσινη διπλωματία» για να αναρριχηθούν στην περιβαλλοντική «χάρτα».
description: The 21st century found the international economic and political system moving towards globalization. The relative weakening of the role of the state - nation, the development of cross-border production, the deregulation and the increasing interdependence between states and their economies and also the conclusion of regional and interregional cooperation undoubtedly mark a new era and affect both the structure and the operation of international relations. Within these changing conditions the environment is redefining its position in the international agenda and ranks the global priorities of political leaders. Topics such as «the environmental security» and «the environmental journalism» suddenly become a major part in all three dimensions of reality information (national, international and global) and in the «tragedy of the commons» countries should develop their «green diplomacy» to climb to the environmental «chart».
Freezing transition of the random bond RNA model: statistical properties of the pairing weights
Creators: name: Monthus, Cecile
name: Garel, Thomas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: To characterize the pairing-specificity of RNA secondary structures as a function of temperature, we analyse the statistics of the pairing weights as follows : for each base $(i)$ of the sequence of length N, we consider the $(N-1)$ pairing weights $w_i(j)$ with the other bases $(j \neq i)$ of the sequence. We numerically compute the probability distributions $P_1(w)$ of the maximal weight, the probability distribution $Π(Y_2)$ of the parameter $Y_2(i)= \sum_j w_i^2(j)$, as well as the average values of the moments $Y_k(i)= \sum_j w_i^k(j)$. We find that there are two important temperatures $T_cT_{gap}$, the distribution $P_1(w)$ vanishes at some value $w_0(T)<1$, and accordingly the moments $\bar{Y_k(i)}$ decay exponentially in $k$. For $T
description: 20 pages, 32 figures
Internet Security Awareness of Filipinos: A Survey Paper
Creators: name: Omorog, C. D.
name: Medina, R. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: A.1

description: Purpose. This paper examines the Internet security perception of Filipinos to establish a need and sense of urgency on the part of the government to create a culture of cybersecurity for every Filipino. Method. A quantitative survey was conducted through traditional, online, and phone interviews among 252 respondents using a two-page questionnaire that covers basic demographic information and two key elements (1) Internet usage and (2) security practices. Results. Based on findings, there is a sharp increase in Internet users for the last three years (50%), and most access to the Internet through mobile (94.4%). Although at home is the most frequent location for Internet access (94.4%), a good percentage still use free WiFi access points available in malls (22.2%), restaurants (11.1%), and other public areas (38.9%) doing Internet services (email and downloading) that are vulnerable to cyberattacks. The study also revealed that although respondents may have good knowledge of Internet security software, proper implementation is very limited. Conclusion. Filipinos are susceptible to cyberattacks, particularly to phishing and malware attacks. Also, the majority of the respondents' Internet security perception is derivative: they practice online measures but with a limited understanding of the purpose. Therefore proper education, through training and awareness, is an effective approach to remedy the situation. Recommendations. The Philippine government must now take actions and tap industries to educate Filipinos about Internet security before any negative consequences happen in the future. Research Implications. The information collected sets a clear picture of the importance of cybersecurity awareness from a regional to a global perspective.
description: 13 pages
On the role of ergodicity and mixing in the central limit theorem for Casati-Prosen triangle map variables
Creators: name: Queiros, Silvio M. Duarte
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this manuscript we analyse the behaviour of the probability density function of the sum of $N$ deterministic variables generated from the triangle map of Casati-Prosen. For the case in which the map is both ergodic and mixing the resulting probability density function quickly concurs with the Normal distribution. When these properties are modified the resulting probability density functions are described by power-laws. Moreover, contrarily to what it would be expected, as the number of added variables $N$ increases the distance to Gaussian distribution increases. This behaviour goes against standard central limit theorem. By extrapolation of our finite size results we preview that in the limit of $N$ going to infinity the distribution has the same asymptotic decay as a Lorenztian (or a $q=2$-Gaussian).
description: 14 pages. To appear in Physics Letters A
title: A behavioural fish movement approach within an anchovy IBM model to study fish migration patterns in the Bay of Biscay
Creators: name: Politikos, Dimitrios
name: Huret, Martin
name: Petitgas, Pierre
Publisher: name: ASC 2013 - Theme session N
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Modelling of fish movement behaviour within a heterogeneous marine environment is a challenging but also key issue for understanding the effect of environmental factors and climatic change on fish processes (growth, distribution, mortality, reproduction). Fish movement models have the capability to encompass the combined effect of environment and empirical knowledge of fish individuals as energy requirements, known preys and predators, swimming capacities into a unified framework (Planque et al., 2011). Following an Individual Based Model (IBM) approach, a fish movement model has been developed to simulate the active movement of adult anchovy in the Bay of Biscay (BoB) in response to the spatio-temporal variations of both biotic and abiotic factors, as well as its internal conditions based on a bioenergetics model
Reconstruction of Deceleration Parameters from Recent Cosmic Observations
Creators: name: Xu, Lixin
name: Zhang, Chengwu
name: Chang, Baorong
name: Liu, Hongya
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, three kinds of simple parameterized deceleration parameters $q(z)=a+\frac{b z}{1+z}$, $q(z)=a+\frac{b z}{(1+z)^2}$ and $q(z)={1/2}+\frac{a z+b}{(1+z)^2}$ are reconstructed from the latest Sne Ia Gold dataset, observational Hubble data and their combination. It is found that the transition redshift from decelerated expansion to accelerated expansion $z_T$ and current decelerated parameter values $q_0$ are consistent with each other in $1σ$ region by only using Sne Ia Gold dataset and observational Hubble data in three parameterizations respectively. By combining the Sne Ia Gold dataset and observational Hubble data together, a tight constraint is obtained. With this combined constraints, $z_T$ is $0.505^{+0.080}_{-0.052}$, $0.368^{+0.059}_{-0.036}$, $0.767^{+0.121}_{-0.126}$ with $1σ$ error in three parameterizations respectively. And, it is easy to see that $z_T$ separates from each other in $1σ$ region clearly.
description: 7 pages, 3 figures, 4 tables. Observational Hubble data alone as a cosmic constraint is added. Some references are added. The whole paper has almost been rewritten completely
Depthwise Multiception Convolution for Reducing Network Parameters without Sacrificing Accuracy
Creators: name: Bao, Guoqing
name: Graeber, Manuel B.
name: Wang, Xiuying
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep convolutional neural networks have been proven successful in multiple benchmark challenges in recent years. However, the performance improvements are heavily reliant on increasingly complex network architecture and a high number of parameters, which require ever increasing amounts of storage and memory capacity. Depthwise separable convolution (DSConv) can effectively reduce the number of required parameters through decoupling standard convolution into spatial and cross-channel convolution steps. However, the method causes a degradation of accuracy. To address this problem, we present depthwise multiception convolution, termed Multiception, which introduces layer-wise multiscale kernels to learn multiscale representations of all individual input channels simultaneously. We have carried out the experiment on four benchmark datasets, i.e. Cifar-10, Cifar-100, STL-10 and ImageNet32x32, using five popular CNN models, Multiception achieved accuracy promotion in all models and demonstrated higher accuracy performance compared to related works. Meanwhile, Multiception significantly reduces the number of parameters of standard convolution-based models by 32.48% on average while still preserving accuracy.
description: This paper was accepted by ICARCV 2020
Coulomb blockade without potential barriers
Creators: name: Vasseur, Gabriel
name: Weinmann, Dietmar
name: Jalabert, Rodolfo A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study transport through a strongly correlated quantum dot and show that Coulomb blockade can appear even in the presence of perfect contacts. This conclusion arises from numerical calculations of the conductance for a microscopic model of spinless fermions in an interacting chain connected to each lead via a completely open channel. The dependence of the conductance on the gate voltage shows well defined Coulomb blockade peaks which are sharpened as the interaction strength is increased. Our numerics is based on the embedding method and the DMRG algorithm. We explain the emergence of Coulomb blockade with perfect contacts by a reduction of the effective coupling matrix elements between many-body states corresponding to successive particle numbers in the interacting region. A perturbative approach, valid in the strong interaction limit, yields an analytic expression for the interaction-induced suppression of the conductance in the Coulomb blockade regime.
description: Fixed problems with eps figures
The Dirichlet problem for the Jacobian equation in critical and supercritical Sobolev spaces
Creators: name: Guerra, André
name: Koch, Lukas
name: Lindberg, Sauli
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We study existence and regularity of solutions to the Dirichlet problem for the prescribed Jacobian equation, $\det Du = f$, where $f$ is integrable and bounded away from zero. In particular, we take $f\in L^p$, where $p > 1$, or in $L\log L$. We prove that for a Baire-generic $f$ in either space there are no solutions with the expected regularity.
description: 14 pages
Universal finite-size scaling in the extraordinary-log boundary phase of three-dimensional $O(N)$ model
Creators: name: Toldin, Francesco Parisen
name: Krishnan, Abijith
name: Metlitski, Max A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent advances in boundary critical phenomena have led to the discovery of a new surface universality class in the three-dimensional $O(N)$ model. The newly found ``extraordinary-log" phase can be realized on a two-dimensional surface for $N< N_c$, with $N_c>3$, and on a plane defect embedded into a three-dimensional system, for any $N$. One of the key features of the extraordinary-log phase is the presence of logarithmic violations of standard finite-size scaling. In this work we study finite-size scaling in the extraordinary-log universality class by means of Monte Carlo simulations of an improved lattice model. We simulate the model with open boundary conditions, realizing the extraordinary-log phase on the surface for $N=2,3$, as well as with fully periodic boundary conditions and in the presence of a plane defect for $N=2,3,4$. In line with theory predictions, renormalization-group invariant observables studied here exhibit a logarithmic dependence on the size of the system. We numerically access not only the leading term in the $β$-function governing these logarithmic violations, but also the subleading term, which controls the evolution of the boundary phase diagram as a function of $N$.
description: 18 pages, 11 figures; v2: 21 pages, 11 figures, expanded sec. III.D, results unchanged
Non-Repudiation for VoIP Communication in UMTS and LTE Networks
Creators: name: Cabuk, Umut Can
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This thesis work presents an architectural design of a system to bring non-repudiation concept into the IP based digital voice conversations (VoIP) in LTE and UMTS networks, using electronic signatures, by considering a centralized approach. Moreover, functionalities and technical methods to support such a system are researched. Last but not least, ways to introduce this system as a public and commercial service are discussed. Non-repudiation concept provided by electronic signatures and related cryptographic functions, as introduced in this study, allow using digital records of these voice conversations as legally binding statements or proofs likewise and even instead of traditional wet signatures. The system is designed as a subsystem to IMS based 3G and 4G networks and maximum compatibility with current configurations, components and interfaces of these networks is intended. On the other hand non-repudiation is achieved by special signature, storage and verification units located in the IMS core network. Voice data is proposed to be processed in MRF unit of the IMS. Additionally, a USSD/USSI based special solution to initiate these signed calls is developed. According to the proposed scheme; during a signed call, two unidirectional voice streams originating from two parties of the call, which are transferred in IP and UDP encapsulated RTP packages, are received by the signature unit and interweaved using their arrival times, so that they become a unified stream. Signature unit generates hashes of groups of received packages and signs them using PKI algorithms and applying hash/signature chaining to increase integrity protection and to empower non-repudiation. Then, it forwards packages and signature information to the storage unit. Storage unit keeps all the call records, signature data and metadata of these calls. Verification unit later gathers relevant data from the storage unit...
description: Master's Thesis. Prepared in Fraunhofer SIT; defended in Aarhus University, in 2015