cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmology beyond BAO from the 3D distribution of the Lyman-$α$ forest
Creators: name: Cuceu, Andrei
name: Font-Ribera, Andreu
name: Joachimi, Benjamin
name: Nadathur, Seshadri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We propose a new method for fitting the full-shape of the Lyman-$α$ (Ly$α$) forest three-dimensional (3D) correlation function in order to measure the Alcock-Paczynski (AP) effect. Our method preserves the robustness of baryon acoustic oscillations (BAO) analyses, while also providing extra cosmological information from a broader range of scales. We compute idealized forecasts for the Dark Energy Spectroscopic Instrument (DESI) using the Ly$α$ auto-correlation and its cross-correlation with quasars, and show how this type of analysis improves cosmological constraints. The DESI Ly$α$ BAO analysis is expected to measure $H(z_\mathrm{eff})r_\mathrm{d}$ and $D_\mathrm{M}(z_\mathrm{eff})/r_\mathrm{d}$ with a precision of $\sim0.9\%$ each, where $H$ is the Hubble parameter, $r_\mathrm{d}$ is the comoving BAO scale, $D_\mathrm{M}$ is the comoving angular diameter distance and the effective redshift of the measurement is $z_\mathrm{eff}\simeq2.3$. By fitting the AP parameter from the full shape of the two correlations, we show that we can obtain a precision of $\sim0.5-0.6\%$ on each of $H(z_\mathrm{eff})r_\mathrm{d}$ and $D_\mathrm{M}(z_\mathrm{eff})/r_\mathrm{d}$. Furthermore, we show that a joint full-shape analysis of the Ly$α$ auto-correlation and its cross-correlation with quasars can measure the linear growth rate times the amplitude of matter fluctuations in spheres of $8\;h^{-1}$Mpc, $fσ_8(z_\mathrm{eff})$. Such an analysis could provide the first ever measurement of $fσ_8(z_\mathrm{eff})$ at redshift $z_\mathrm{eff}>2$. By combining this with the quasar auto-correlation in a joint analysis of the three high-redshift two-point correlation functions, we show that DESI could be able to measure $fσ_8(z_\mathrm{eff}\simeq2.3)$ with a precision of $5-12\%$, depending on the smallest scale fitted.
Ζητήματα αναφορικά με το δικαίωμα άμυνας απέναντι σε μη κρατικούς δρώντες
Creators: name: Καμπούρογλου, Ελευθερία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Δικαίωμα άμυνας
Μη κρατικοί δρώντες
Χρήση βίας
Self-defense
Non state-actors
Use of force

description: Σκοπός της διατριβής ήταν η μελέτη της νομιμότητας της εξωεδαφικής χρήσης βίας κατά μη κρατικών παραγόντων και η κατανόηση των περιορισμών της. Εξετάσαμε το δίκαιο της άμυνας τόσο πριν όσο και μετά τα γεγονότα της 11ης Σεπτεμβρίου. Εστιάσαμε αρχικά στην έννοια της ένοπλης επίθεσης ως προϋπόθεση για την άσκηση του δικαιώματος άμυνας και στο κριτήριο της βαρύτητας. Αναφερθήκαμε επίσης στο ζήτημα της απόδοσης ευθύνης σε κράτος για τρομοκρατικές ενέργειες. Επιπλέον αναλύσαμε τα κριτήρια για την άσκηση του δικαιώματος άμυνας. Ένα άλλο θέμα που θίξαμε είναι η σχέση μεταξύ των δυο πηγών του δικαίου της άμυνας. Στη συνέχεια μας απασχόλησε η άμυνα σε σχέση με το δόγμα των ανίκανων και απρόθυμων κρατών. Ακόμη αναφερθήκαμε στην άμυνα ως πρωτογενή και ως παράγωγο κανόνα και στην μεταξύ τους σχέση. Έπειτα εξετάσαμε το κατά πόσο η επιχείρηση κατά του Αφγανιστάν υπήρξε σύμφωνη με τις αρχές του διεθνούς δικαίου και τις διατάξεις του Χάρτη των Ηνωμένων Εθνών. Τέλος ασχοληθήκαμε με την επανεκτίμηση της χρήσης βίας μετά την 11ης Σεπτεμβρίου εποχή και διαπιστώσαμε την ανάγκη επαναξιολόγησης των υπαρχόντων κανόνων.
description: The aim of the present thesis was the study of the legality of extraterritorial use of force against non-state actors and the understanding of its limitations. We examined the law concerning the right of self-defence before and after the September 11 attacks. First of all we emphasized on the notion of armed attack as a condition for the exercise of the right of self-defense and the criterion of gravity. Furthermore we referred to the state accountability issue concerning terrorist actions. Moreover we studied closely the criteria for the exercise of the right of self-defense. An other issue that we presented is the correlation between the two sources of the right of self-defense. Then we broached the matter of self-defense concerning the notion of unable or unwilling states. What is more, we analyzed self-defense as a primary and as a secondary rule. We also examined the operation against Afghanistan and her compliance with the principles of international law and the provisions of the Charter of the United Nations. Another aim of this study was to focus on the reassessment of the use of force after the September 11 era which led to the conclusion that it is necessary to reexamine the existent rules.
Characterizing four-body indistinguishability via symmetries
Creators: name: Minke, Alexander M.
name: Buchleitner, Andreas
name: Dittel, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to characterize the indistinguishability of up to four identical, bosonic or fermionic particles, which are rendered partially distinguishable through their internal degrees of freedom prepared in mixed states. This is accomplished via their counting statistics when subjected to a highly symmetric unitary acting upon their external (i.e., dynamical) degrees of freedom. For pure internal states, we further extract information on the particles' collective phases, which ultimately allows for an experimental reconstruction of the full many-particle density operator up to complex conjugation.
Accelerated galaxy growth and environmental quenching in a protocluster at z=3.24
Creators: name: Shi, Ke
name: Toshikawa, Jun
name: Lee, Kyoung-Soo
name: Wang, Tao
name: Cai, Zheng
name: Fang, Taotao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a multiwavelength study of galaxies around D4UD01, a spectroscopically confirmed protocluster at z = 3.24 to investigate environmental trends. 450 galaxies are selected based on Ks band detection with photometric redshifts (photo-z) at 3.0 < z < 3.4, among which ~ 12% are classified as quiescent galaxies. The quiescent galaxies are among the most massive and reddest ones in the entire sample. We identify a large photo-z galaxy overdensity in the field, which lies close to the previously spectroscopically confirmed sources of the protocluster. We find that the quiescent galaxies are largely concentrated in the overdense protocluster region with a higher quiescent fraction, showing a sign of environmental quenching. Galaxies in the protocluster are forming faster than the field counterparts as seen in the stellar mass function, suggesting early and accelerated mass assembly in the overdense regions. Although weak evidence of suppressed star-formation is found in the protocluster, the statistics are not significant enough to draw a definite conclusion. Our work shed light on how the formation of massive galaxies is affected in the dense region of a protocluster when the Universe was only 2 Gyr old.
description: 16 pages, 7 figures, accepted to ApJ
Metastable states, the adiabatic theorem and parity violating geometric phases I
Creators: name: Bergmann, Timo
name: Gasenzer, Thomas
name: Nachtmann, Otto
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A system of metastable plus unstable states is discussed. The mass matrix governing the time development of the system is supposed to vary slowly with time. The adiabatic limit for this case is studied and it is shown that only the metastable states obtain the analogs of the dynamical and geometrical phase factors familiar from stable states. Abelian and non-abelian geometric phase factors for metastable states are defined.
description: 30 pages
Business Model Canvas Should Pay More Attention to the Software Startup Team
Creators: name: Kemell, Kai-Kristian
name: Elonen, Atte
name: Suoranta, Mari
name: Nguyen-Duc, Anh
name: Garbajosa, Juan
name: Chanin, Rafael
name: Melegati, Jorge
name: Rafiq, Usman
name: Aldaeej, Abdullah
name: Assyne, Nana
name: Sales, Afonso
name: Hyrynsalmi, Sami
name: Riski, Juhani
name: Edison, Henry
name: Abrahamsson, Pekka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Business Model Canvas (BMC) is a tool widely used to describe startup business models. Despite the various business aspects described, BMC pays a little emphasis on team-related factors. The importance of team-related factors in software development has been acknowledged widely in literature. While not as extensively studied, the importance of teams in software startups is also known in both literature and among practitioners. In this paper, we propose potential changes to BMC to have the tool better reflect the importance of the team, especially in a software startup environment. Based on a literature review, we identify various components related to the team, which we then further support with empirical data. We do so by means of a qualitative case study of five startups.
The Gravitino Swampland Conjecture
Creators: name: Kolb, Edward W.
name: Long, Andrew J.
name: McDonough, Evan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the swampland from effective field theories (EFTs) inconsistent with quantum gravity to EFTs inconsistent with quantum supergravity. This enlarges the swampland to include EFTs that become inconsistent when the gravitino is quantized. We propose the Gravitino Swampland Conjecture: the gravitino sound speed must be non-vanishing in all EFTs that are low energy limits of quantum supergravity. This seemingly simple statement has important consequences for both theories and observations. The conjecture is consistent with and supported by the KKLT and LVS scenarios for moduli stabilization in string theory.
description: 6 pages, 2 figures. v2: version accepted to PRL
Are charged tips driving TERS-resolution? A full quantum chemical approach
Creators: name: Fiederling, Kevin
name: Kupfer, Stephan
name: Gräfe, Stefanie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Experimental evidence suggests an extremely high, possibly even sub-molecular, spatial resolution of tip-enhanced Raman spectroscopy. While the underlying mechanism is currently still under discussion, two main contributions are considered: The involved plasmonic particles are able to highly confine light to small spatial regions in the near-field, i.e. the electromagnetic effect, and the chemical effect due to altered molecular properties of the sample in close proximity to the plasmonic tip. Significant theoretical effort is put into the modelling of the electromagnetic contribution by various groups. In contrast, we previously introduced a computational protocol that allows for investigation of the local chemical effect -- including non-resonant, resonant and charge transfer contributions -- in a plasmonic hybrid system by mapping the sample molecule with a metallic tip model at the (time-dependent) density functional level of theory. In the present contribution, we evaluate the impact of static charges localized on the tip's frontmost atom, possibly induced by the tip geometry in the vicinity of the apex, on the TERS signal and the lateral resolution. To this aim, an immobilized molecule, i.e. tin(II) phthalocyanine (SnPc), is mapped by the plasmonic tip modeled by a single positively vs. negatively charged silver atom. The performed quantum chemical simulations reveal a pronounced enhancement of the Raman intensity under non-resonant and resonant conditions with respect to the uncharged reference system, while the contribution of charge transfer phenomena as well as of locally excited states of SnPc is highly dependent on the tip's charge.
Dynamics of a Brownian circle swimmer
Creators: name: van Teeffelen, Sven
name: Löwen, Hartmut
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Self-propelled particles move along circles rather than along a straight line when their driving force does not coincide with their propagation direction. Examples include confined bacteria and spermatozoa, catalytically driven nanorods, active, anisotropic colloidal particles and vibrated granulates. Using a non-Hamiltonian rate theory and computer simulations, we study the motion of a Brownian "circle swimmer" in a confining channel. A sliding mode close to the wall leads to a huge acceleration as compared to the bulk motion, which can further be enhanced by an optimal effective torque-to-force ratio.
description: v2: changed title from "The fate of a Brownian circle swimmer"; mainly changes of introduction and conclusions
Η προστασία δεδομένων προσωπικού χαρακτήρα ήδη από το σχεδιασμό και εξ’ ορισμού
Creators: name: Σκανδάλη, Αναστασία Αριστείδης
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Γενικός Κανονισμός για την Προστασία Προσωπικών Δεδομένων
Προστασία δεδομένων ήδη από το σχεδιασμό
Προστασία δεδομένων εξ’ ορισμού
General Data Protection Regulation
Data protection by design
Data protection by default

description: Ο Γενικός Κανονισμός για την Προστασία Δεδομένων (Κανονισμός 2016/679) ο οποίος ψηφίσθηκε στις 27-4-2016 και τέθηκε σε ισχύ στις 25-5-2018 αλλάζει άρδην το τοπίο επί της προστασία δεδομένων προσωπικού χαρακτήρα, εισάγοντας νέες έννοιες, δικαιώματα και υποχρεώσεις. Μεταξύ αυτών περιλαμβάνονται στο άρθρο 25 ΓΚΠΔ και οι έννοιες της προστασίας δεδομένων προσωπικού χαρακτήρα ήδη από το σχεδιασμό (data protection by design ή privacy by design) και εξ ορισμού (data protection by default ή privacy by default). Οι εν λόγω αρχές αποτελούν τεχνολογικά μέτρα προστασίας τα οποία οφείλει να λαμβάνει ο υπεύθυνος επεξεργασίας προληπτικά προκειμένου να διασφαλίζεται η προστασία της ιδιωτικής ζωής. Η υιοθέτηση των εν λόγω αρχών ενέχει πληθώρα πλεονεκτήματα καθώς εισάγει μια νέα προοπτική στην προστασία δεδομένων προσωπικού χαρακτήρα στην εποχή της τεχνολογικής προόδου.
description: The General Data Protection Regulation (Regulation 2016/679), which was voted on 27-4-2016 and came into force on 25-5-2018, is changing the landscape of personal data protection by introducing new concepts, rights and obligations. These include Article 25 of the GDPR and the concepts of data protection by design (privacy by design) and data protection by default (privacy by default). These principles are technological safeguards that the controller must take to ensure the protection of privacy. The adoption of these principles has many advantages as it introduces a new perspective on the protection of personal data in the age of technological progress.
The origin of phase in the interference of Bose-Einstein condensates
Creators: name: Mullin, W. J.
name: Krotkov, R.
name: Laloë, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the interference of two overlapping ideal Bose-Einstein condensates. The usual description of this phenomenon involves the introduction of a so-called condensate wave functions having a definite phase. We investigate the origin of this phase and the theoretical basis of treating interference. It is possible to construct a phase state, for which the particle number is uncertain, but phase is known. However, how one would prepare such a state before an experiment is not obvious. We show that a phase can also arise from experiments using condensates in Fock states, that is, having known particle numbers. Analysis of measurements in such states also gives us a prescription for preparing phase states. The connection of this procedure to questions of ``spontaneously broken gauge symmetry'' and to ``hidden variables'' is mentioned.
description: 22 pages 4 figures
Non-equilibrium sedimentation of colloids on the particle scale
Creators: name: Royall, C. Patrick
name: Dzubiella, Joachim
name: Schmidt, Matthias
name: van Blaaderen, Alfons
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate sedimentation of model hard sphere-like colloidal dispersions confined in horizontal capillaries using laser scanning confocal microscopy, dynamical density functional theory, and Brownian dynamics computer simulations. For homogenized initial states we obtain quantitative agreement of the results from the respective approaches for the time evolution of the one-body density distribution and the osmotic pressure on the walls. We demonstrate that single particle information can be obtained experimentally in systems that were initialized further out-of-equilibrium such that complex lateral patterns form.
description: to be published in Phys. Rev. Lett
Ο επίσκοπος λαρίσης και πλαταμώνος Αμβρόσιος Κασσάρας και η καθαίρεσή του
Creators: name: Γάτος, Χαράλαμπος Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Αμβρόσιος
Καθαίρεση
Λάρισα
Amvrosios
Deposition
Larissa

description: Σκοπός της διατριβής ήταν η μελέτη της προσωπικότητας και του έργου του Επισκόπου Λαρίσης και Πλαταμώνος Αμβροσίου (Κασσάρα) καθώς και των συμβάντων και γεγονότων που οδήγησαν στην καθαίρεσή του. Αρχικά εξετάσαμε την εποχή εντός της οποίας έζησε και αναδείχθηκε , ενώ στη συνέχεια παρουσιάσαμε τη δράση του και ειδικότερα τη συμμετοχή του στην επανάσταση της Θεσσαλίας , την ποιμαντική του δράση, την αντιμετώπιση εκκλησιαστικών ζητημάτων που προέκυπταν, τη θέση του για τον Απόστολο Μακράκη καθώς και τη συμβολή του στην εκπαίδευση. Ασχοληθήκαμε με τη σύγκρουση του Επισκόπου Αμβροσίου με το Παλάτι, τη στάση του απέναντι στα γεγονότα των Ευαγγελικών και του κινήματος στο Γουδί, όπως και τη σύγκρουσή του με την Ιερά Σύνοδο , ενώ στη συνέχεια αναφερθήκαμε και αναλύσαμε το εις βάρος του κατηγορητήριο , την απολογία του, την καθαίρεσή του , καθώς και την επαναφορά του τίτλου του ως Επισκόπου και το τέλος του. Μετά δε την παρουσίαση των ανωτέρω, αναλύσαμε τόσο τον Αμβρόσιο όσο και το ζήτημα της καθαιρέσεώς του μέσα από την προσωπική μας προσέγγιση.
description: The aim of the dissertation is the study of the personality and the deeds of Larissa’s Bishop and PlatamonosAmvrosiou (Kassara) as well as of the happening and occurrences which led to his deposition. First of all, we examined the era when he lived and emerged, and following we presented his action and in particular his participation in the revolution of Thessaly and his pastoral action, the addressing of ecclesiastical issues that occurred, his position for Apostolos Makrakis as well as his contribution to education. We also considered the conflict of Bishop Amvrosios with the Palace and his attitude towards the events of Evangelika and the mutiny at Goudi, as well as his conflict with Holy Synod, while following and referred to and analyzed the indictment against him, his apology, his deposition, as well as the return of his title as Bishop and his death. Following the discussion of the above-mentioned, we analyzed both Amvrosios and his deposition issue in light of our own personal perspective.
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
Deformation and fracture of PMMA with application to nanofoaming and adhesive joints
Creators: name: Van Loock, Frederik
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Polymethyl methacrylate
Nanofoams
Deformation maps
Failure maps
Tensile tests
Solid-state foaming
Gas dissolution foaming
Molecular weight
Void growth model
Cavity expansion
Adhesive joint
Finite element analysis
LEFM
Cohesive zone
Stiffness mismatch
Cellulose acetate

description: This thesis contributes to the understanding of the deformation and fracture of methyl methacrylate (MMA)-based polymers in the context of void growth. The first part of the thesis focuses on the prediction of void growth during solid state nanofoaming of polymethyl methacrylate (PMMA). These predictions may contribute to the development of polymeric foams with a thermal conductivity close to that of air. The second part of the thesis explores the fracture behaviour of structural adhesive (e.g. MMA)-based joints. An adhesive layer within such a joint is prone to defects such as (micro)voids and (micro)cracks. The ability to accurately predict the failure strength of adhesive joints as a function of pore or crack size is essential in order to design reliable structures based on adhesive bonding technology. A one dimensional void growth model is developed to simulate cavity expansion during solid-state nanofoaming of PMMA by CO$_2$ in the first part of the thesis. To that end, tensile tests on two PMMA grades of markedly different molecular weight are conducted close to the glass transition temperature and over two decades of strain rate. The void growth model makes use of fitted constitutive laws for each PMMA grade and the effect of dissolved CO$_2$ is accounted for by a shift in the glass transition temperature of the PMMA. Solid-state nanofoaming experiments are performed on the two PMMA grades to validate the void growth model. The morphology of the foams (and the limit in attainable porosity) is found to be sensitive to the molecular weight. The measured porosity versus foaming time curves are in good agreement with those predicted by the model, for porosities below the maximum observed porosity. The observed limit of achievable porosity is interpreted in terms of cell wall tearing; it is deduced that the failure criterion is sensitive to cell wall thickness. The tensile strength of a centre-cracked elastic layer, sandwiched between two elastic substrates, and subjected to remote tensile stress, is predicted in the second part of the thesis. An analytical theory is developed by making use of a cohesive zone at the crack tip to predict the strength of the joint as a function of the relative magnitude of crack length, layer thickness, plastic zone size, specimen width, and elastic modulus mismatch ratio. Joint design maps are constructed, revealing competing regimes of fracture. The analytical theory is verified by finite element calculations, and validated by means of two experimental case studies.
description: EPSRC, SABIC
Amidst Uncertainty -- or Not? Decision-Making in Early-Stage Software Startups
Creators: name: Kemell, Kai-Kristian
name: Ventilä, Eveliina
name: Kettunen, Petri
name: Mikkonen, Tommi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: It is commonly claimed that the initial stages of any startup business are dominated by continuous, extended uncertainty, in an environment that has even been described as chaotic. Consequently, decisions are made in uncertain circumstances, so making the right decision is crucial to successful business. However, little currently exists in the way of empirical studies into this supposed uncertainty. In this paper, we study decision-making in early-stage software startups by means of a single, in-depth case study. Based on our data, we argue that software startups do not work in a chaotic environment, nor are they characterized by unique uncertainty unlike that experienced by other firms.
CMB anisotropies seen by an off-center observer in a spherically symmetric inhomogeneous universe
Creators: name: Alnes, Havard
name: Amarzguioui, Morad
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The current authors have previously shown that inhomogeneous, but spherically symmetric universe models containing only matter can yield a very good fit to the SNIa data and the position of the first CMB peak. In this work we examine how far away from the center of inhomogeneity the observer can be located in these models and still fit the data well. Furthermore, we investigate whether such an off-center location can explain the observed alignment of the lowest multipoles of the CMB map. We find that the observer has to be located within a radius of 15 Mpc from the center for the induced dipole to be less than that observed by the COBE satellite. But for such small displacements from the center, the induced quadru- and octopoles turn out to be insufficiently large to explain the alignment.
description: 8 pages (REVTeX4), 7 figures; v2: minor changes, matches published version
Streszczenie raportu "Zdolność polskich i rumuńskich interesariuszy do zapewnienia wsparcia ukraińskim uchodźcom z niepełnosprawnościami w obszarach metropolitalnych Warszawy i Bukaresztu"
Creators: name: Nowicka, Monika
name: Deliu, Alexandra
name: Voicu, Bogdan
name: Szarota, Magda
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 420318
subject: People with disability
classificationCode: 350703
subject: Disaster and emergency management
classificationCode: 440303
subject: Migration
classificationCode: 480704
subject: Migration, asylum and refugee law
classificationCode: 441013
subject: Sociology of migration, ethnicity and multiculturalism
classificationCode: 440902
subject: Counselling, wellbeing and community services

description: Celem projektu było zdiagnozowanie i zrozumienie sytuacji oraz rodzaju pomocy udzielanej uchodźcom z niepełnosprawnościami na przykładzie ukraińskich uchodźców wojennych. Nasze badania opierały się na podejściu naukowym, które czerpało inspirację z koncepcji „pola organizacyjnego” jako jednostki analizy. Oznacza to, że skupiliśmy się na osobach i organizacjach, które zapewniają pomoc uchodźcom z niepełnosprawnościami.Przedstawione poniżej wnioski i praktyczne wskazówki zostały opracowane na podstawie zebranego materiału badawczego, i opierają się na doświadczeniach osób, które wzięły udział w projekcie. Jednak biorąc pod uwagę działania i zaangażowanie badanych, uważamy, że może to być dobry punkt wyjścia do zbudowania bazy wiedzy na temat pomocy uchodźcom z niepełnosprawnościami (RwD) w krajach, w których występuje napływ uchodźców. Pełen raport i jak jego streszczenie są skierowane do różnych interesariuszy, którzy są lub będą zaangażowani we wspieranie uchodźców z niepełnosprawnościami: Agencji i instytucji publicznych, w tym rządowych i samorządowych. Organizacji i grup społeczeństwa obywatelskiego, które zapewniają wsparcie uchodźcom: organizacje pozarządowe, grupy społecznościowe, wolontariusze. Grupy rzeczniczych (advocacy): osoby i organizacje opowiadające się za prawami osób niepełnosprawnych i włączeniem uchodźców.
Student understanding of the kinematic quantities of angular speed and angular acceleration
Creators: name: Rankin, Graham W.
Publisher: name: University of British Columbia
Year: 2008

description: This study describes first and second year university physics students' understanding and reasoning of the concepts, angular speed and angular acceleration. The analysis was based on student responses to various tasks presented to them during one hour long interviews. These responses were characterized from a phenomeno graphic research perspective developed by Marton (1981) and his colleagues at Gothenburg University in Sweden. The findings of the study are described by categories of description and by categories of reasoning. Categories of description characterize; students' conceptualizations of angular speed from different frames of reference, and the ways in which students make comparisons of the angular speeds of two objects. Categories of reasoning characterize the ways in which students were thought to reason about the concepts of angular speed and angular acceleration in several task settings. Interpretation of these findings are discussed with reference to the role a typical introductory physics textbook may have had in shaping the way in which students think about these angular kinematic concepts. Finally, instructional implications and directions for future research are given.
Συγκριτική ανάλυση των διατάξεων για τη συμμετοχή στο έγκλημα του καταστατικού του διεθνούς ποινικού δικαστηρίου και του ελληνικού ποινικού κώδικά
Creators: name: Φαραντάκη, Φλουρή Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Συμμετοχή
Διεθνές Ποινικό Δίκαιο
Συγκριτική μελέτη
Complicity
International Criminal Law
Comparative study

description: Σκοπός της διατριβής ήταν η συγκριτική ανάλυση των διατάξεων για τη συμμετοχή στο έγκλημα από τη σκοπιά του ελληνικού Ποινικού Κώδικά και του Καταστατικού του Διεθνούς Ποινικού Δικαστηρίου. Αρχικά αναφερθήκαμε στο θεωρητικό πλαίσιο της συμμετοχής κατά το ελληνικό Ποινικό Δίκαιο ως έννοια που διευρύνει το αξιόποινο, κάνοντας ταυτόχρονα αναφορά στον παρακολουθηματικό της χαρακτήρα. Στη συνέχεια, παρουσιάσαμε την ιστορική εξέλιξη του φαινομένου της συμμετοχής κατά το Διεθνές Ποινικό Δίκαιο δίνοντας έμφαση κυρίως στην αρχή της ατομικής ποινικής ευθύνης και στο θεωρητικό πλαίσιο της system criminality. Συνεχίζοντας, αναλύσαμε τις επιμέρους διατάξεις για τη συμμετοχή τόσο με βάση τα οριζόμενα στον ελληνικό Ποινικό Κώδικα, όσο και σε σχέση με τα σχετικά άρθρα του Διεθνούς Ποινικού Δικαστηρίου. Στο τέλος κάθε επιμέρους τύπου συμμετοχής, δώσαμε βάση στη σύγκριση των εν λόγω διατάξεων κάθε νομοθετικού κειμένου.
description: The aim of the present thesis is the comparative study of the provisions of the Greek Criminal Code and the International Criminal Court Statute concerning the complicity in crime. Initially, we examined the theoretical frame of complicity, in the sense of the expansion of the criminal liability and concerning its subsidiary character, based on the Criminal Law of Greece. Furthermore, we presented the historical evolution of complicity in terms of the International Criminal Law, analyzing mainly the principle of individual criminal responsibility and the theoretical frame of system criminality. Then, we also analyzed the provisions of complicity of both legislative texts, ending at the comparison of the theoretical meaning of these texts.
Quantum routing with fast reversals
Creators: name: Bapat, Aniruddha
name: Childs, Andrew M.
name: Gorshkov, Alexey V.
name: King, Samuel
name: Schoute, Eddie
name: Shastri, Hrishee
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present methods for implementing arbitrary permutations of qubits under interaction constraints. Our protocols make use of previous methods for rapidly reversing the order of qubits along a path. Given nearest-neighbor interactions on a path of length $n$, we show that there exists a constant $ε\approx 0.034$ such that the quantum routing time is at most $(1-ε)n$, whereas any swap-based protocol needs at least time $n-1$. This represents the first known quantum advantage over swap-based routing methods and also gives improved quantum routing times for realistic architectures such as grids. Furthermore, we show that our algorithm approaches a quantum routing time of $2n/3$ in expectation for uniformly random permutations, whereas swap-based protocols require time $n$ asymptotically. Additionally, we consider sparse permutations that route $k \le n$ qubits and give algorithms with quantum routing time at most $n/3 + O(k^2)$ on paths and at most $2r/3 + O(k^2)$ on general graphs with radius $r$.
description: 26 pages, 10 figures. Updated version forthcoming in Quantum
RGB2Hands: Real-Time Tracking of 3D Hand Interactions from Monocular RGB Video
Creators: name: Wang, Jiayi
name: Mueller, Franziska
name: Bernard, Florian
name: Sorli, Suzanne
name: Sotnychenko, Oleksandr
name: Qian, Neng
name: Otaduy, Miguel A.
name: Casas, Dan
name: Theobalt, Christian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Tracking and reconstructing the 3D pose and geometry of two hands in interaction is a challenging problem that has a high relevance for several human-computer interaction applications, including AR/VR, robotics, or sign language recognition. Existing works are either limited to simpler tracking settings (e.g., considering only a single hand or two spatially separated hands), or rely on less ubiquitous sensors, such as depth cameras. In contrast, in this work we present the first real-time method for motion capture of skeletal pose and 3D surface geometry of hands from a single RGB camera that explicitly considers close interactions. In order to address the inherent depth ambiguities in RGB data, we propose a novel multi-task CNN that regresses multiple complementary pieces of information, including segmentation, dense matchings to a 3D hand model, and 2D keypoint positions, together with newly proposed intra-hand relative depth and inter-hand distance maps. These predictions are subsequently used in a generative model fitting framework in order to estimate pose and shape parameters of a 3D hand model for both hands. We experimentally verify the individual components of our RGB two-hand tracking and 3D reconstruction pipeline through an extensive ablation study. Moreover, we demonstrate that our approach offers previously unseen two-hand tracking performance from RGB, and quantitatively and qualitatively outperforms existing RGB-based methods that were not explicitly designed for two-hand interactions. Moreover, our method even performs on-par with depth-based real-time methods.
description: SIGGRAPH Asia 2020
Πρωτοχριστιανική τέχνη στη Θεσσαλονίκη κατά τον 5ο αιώνα μ.Χ.. Το παράδειγμα του Ιερού Ναού της Παναγίας Αχειροποιήτου
Creators: name: Μπουρατζή, Αικατερίνη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Βυζαντινή Θεσσαλονίκη
Χριστιανική τέχνη
Παναγία Αχειροποίητος
Byzantine Thessaloniki
Christian art
Panagia Acheropoietos

description: Το Βυζάντιο υπήρξε, για εννέα περίπου αιώνες, το προπύργιο ενός σταθερού, αυτόνομου Χριστιανικού και πολιτισμικού κόσμου. Σκοπός της διατριβής ήταν η μελέτη της Βυζαντινής τέχνης κατά τα πρώτα Χριστιανικά χρόνια,η οποία, όπως παρουσιάζουμε, είναι συνυφασμένη με την απόδοση του Ορθόδοξου Χριστιανικού πνεύματος. Η παρούσα εργασία, επιδιώκει επίσης να παρουσιάσει τον βυζαντινό χαρακτήρα της Θεσσαλονίκης κατά την πρώιμη Βυζαντινή της περίοδο και μέσα από την πρώιμη θρησκευτική της τέχνη, γέννημα ενός Χριστιανισμού που κατά τον 5ο αιώνα, άρχισε να θριαμβεύει. Με τη βοήθεια ιστορικών καθώς και αρχιτεκτονικών, θεολογικών και άλλων πηγών, οι οποίες αναφέρονται στη Βυζαντινή Θεσσαλονίκη γενικότερα και ειδικότερα στις περιγραφές των Βυζαντινών της Ναών του 5ου αι., πραγματοποιήθηκε μελέτη που αφορά την βυζαντινή τεχνοτροπία της εποχής (5ος μ.Χ. αι.), με ουσιαστικότερη προσέγγιση τον Ιερό Ναό της Παναγίας Αχειροποιήτου. Η σκιαγράφηση της ιστορικότητας και της τέχνης του Ιερού Ναού της Παναγίας Αχειροποιήτου, από την ίδρυσή της έως και σήμερα, στοχεύει στο να αναδειχθεί ο ρόλος της Βασιλικής κατά την πρωτοβυζαντινή περίοδο αλλά και στις εκάστοτε ιστορικές περιόδους, η διαχρονική αξία και σημασία των γλυπτών, ψηφιδωτών και τοιχογραφιών της, καθώς και η θρησκευτική και κοινωνική προσφορά του Χριστιανικού αυτού μνημείου από τον 5ο αιώνα έως τις μέρες μας
description: Byzantium was for nearly nine centuries, the stronghold of a stable, autonomous Christian and cultural world. Byzantine art is inextricably linked to a rendition of the Orthodox Christian spirit. This assignment aims to illustrate the Byzantine character of Thessaloniki during its early Byzantine period, and through its early religious art, which was the creation of a rising triumphant Christianity in the 5th century. Based on historical, as well as on architectural, theological, and other sources, which refer to Byzantine Thessaloniki in general, and to accounts of its Byzantine Churches of the 5th century in specific, a study was carried out with regard to the Byzantine style of the time (5th century A.D.), with the main approach being focused on the Church of Panagia Acheropoietos. The delineation of the historicity and art of the Church of Panagia Acheropoietos, from its foundation to this day, aims to highlight the role of the Basilica during the early Byzantine era, as well in each historical period, the timeless value and significance of its sculptures, mosaics, and murals, and also the religious and social contribution of this Christian monument from the 5th century to this day
La comunicazione interculturale e l’approccio comunicativo: dall’idea allo strumento
Creators: name: Balboni, Paolo
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

The communicative approach in foreign language teaching claims that the sociocultural context of the communicative event must be considered in order to make communication possible and efficient. Yet, very few scholars in the field of language teaching research have actually studied the nature and procedures of intercultural communication, and only recently a language teaching oriented model of intercultural communicative competence has been defined. The first part of the essay presents the nature of communicative competence and of its implementation in intercultural contexts, i.e. in all the communicative exchanges between people who do not share the same mother tongue/culture. The second part describes an online open access world map of the critical points of intercultural communication, meant to help people who use English as a Lingua Franca, or who study a language, focus the issue of culture as a communicative factor. The map is a work in progress and relies on the contribution of people all over the world in order to become more and more accurate.

description: EL.LE
High-energy particle acceleration at the radio-lobe shock of Centaurus A
Creators: name: Croston, Judith H.; Kraft, Ralph P.; Hardcastle, Martin J.; Birkinshaw, Mark; Worrall, Diana M.; Nulsen, P. E. J.; Penna, R. F.; Sivakoff, Gregory Robert; Jordán, Andrés; Brassington, Nicola J.; Evans, Daniel A.; Forman, William R.; Gilfanov, Marat; Goodger, Joanna L.; Harris, Wayne E.; Jones, Christine; Juett, Adrienne M.; Murray, Stephen S.; Raychaudhury, Somak; Sarazin, Craig L.; Voss, Rasmus; Woodley, Kristin A.
Publisher: name: University of Alberta Libraries
Year: 2009

Abstract
Reducing Waiting Times at Charging Stations with Adaptive Electric Vehicle Route Planning
Creators: name: Schoenberg, Sven
name: Dressler, Falko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Electric vehicles are becoming more popular all over the world. With increasing battery capacities and a growing fast-charging infrastructure, they are becoming suitable for long distance travel. However, queues at charging stations could lead to long waiting times, making efficient route planning even more important. In general, optimal multi-objective route planning is extremely computationally expensive. We propose an adaptive charging and routing strategy, which considers driving, waiting, and charging time. For this, we developed a multi-criterion shortest-path search algorithm using contraction hierarchies. To further reduce the computational effort, we precompute shortest-path trees between the known locations of the charging stations. We propose a central charging station database (CSDB) that helps estimating waiting times at charging stations ahead of time. This enables our adaptive charging and routing strategy to reduce these waiting times. In an extensive set of simulation experiments, we demonstrate the advantages of our concept, which reduces average waiting times at charging stations by up to 97 %. Even if only a subset of the cars uses the CSDB approach, we can substantially reduce waiting times and thereby the total travel time of electric vehicles.
description: 12 pages, 13 figures
Swift Discovery of Gamma-Ray Bursts without Jet Break Feature in their X-Ray Afterglows
Creators: name: Sato, G.
name: Yamazaki, R.
name: Ioka, K.
name: Sakamoto, T.
name: Takahashi, T.
name: Nakazawa, K.
name: Nakamura, T.
name: Toma, K.
name: Hullinger, D.
name: Tashiro, M.
name: Parsons, A. M.
name: Krimm, H. A.
name: Barthelmy, S. D.
name: Gehrels, N.
name: Burrows, D. N.
name: O'Brien, P. T.
name: Osborne, J. P.
name: Chincarini, G.
name: Lamb, D. Q.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze Swift gamma-ray bursts (GRBs) and X-ray afterglows for three GRBs with spectroscopic redshift determinations -- GRB 050401, XRF 050416a, and GRB 050525a. We find that the relation between spectral peak energy and isotropic energy of prompt emissions (the Amati relation) is consistent with that for the bursts observed in pre-Swift era. However, we find that the X-ray afterglow lightcurves, which extend up to 10-70 days, show no sign of the jet break that is expected in the standard framework of collimated outflows. We do so by showing that none of the X-ray afterglow lightcurves in our sample satisfies the relation between the spectral and temporal indices that is predicted for the phase after jet break. The jet break time can be predicted by inverting the tight empirical relation between the peak energy of the spectrum and the collimation-corrected energy of the prompt emission (the Ghirlanda relation). We find that there are no temporal breaks within the predicted time intervals in X-ray band. This requires either that the Ghirlanda relation has a larger scatter than previously thought, that the temporal break in X-rays is masked by some additional source of X-ray emission, or that it does not happen because of some unknown reason.
description: 24 pages, 6 figures, accepted for publication in ApJ; minor revision
Οι ρυθμίσεις του Ν.4139/2013 για την ποινική μεταχείριση των εξαρτημένων δραστών και η κριτική επισκόπηση της εφαρμογής τους
Creators: name: Σπανός, Παναγιώτης Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: εξαρτημένοι
δράστες
νόμος 4139/2013
drug addicted
offenders
Law 4139/2013

description: Στόχος της παρούσας μελέτης είναι η ερμηνευτική προσέγγιση των κυρωτικών και των θεραπευτικών διατάξεων της ειδικής ποινικής νομοθεσίας και πιο συγκεκριμένα του Ν.4139/2013(άρθρα 30-35) για τα ναρκωτικά και η κριτική επισκόπηση της εφαρμογής τους. Αναλυτικότερα, στο Πρώτο Κεφάλαιο αναλύονται οι έννοιες «ναρκωτικά» και «εξάρτηση» καθώς και ο κρίσιμος χρόνος διάγνωσης της εξάρτησης κατά την ποινική διαδικασία. Στο Δεύτερο Κεφάλαιο εξετάζεται η διεθνής θεσμική αντιμετώπιση του ζητήματος της εξάρτησης από τα ναρκωτικά καθώς και το εθνικό δίκαιο στη διαχρονική του διάσταση. Το Τρίτο Κεφάλαιο πραγματεύεται τις προβλεπόμενες ποινές (μείωση ποινής λόγω της ύπαρξης εξάρτησης) για τη χρήση και διακίνηση ναρκωτικών από εξαρτημένους δράστες κατά το άρθρο 30 παρ. 4 του Ν. 4139. Στη συνέχεια, στα Κεφάλαια Τέσσερα έως Οκτώ αναλύονται τα ευεργετικά εναλλακτικά μέτρα για τους εξαρτημένους από την συμμετοχή και την ολοκλήρωση θεραπευτικών προγραμμάτων, με την εξής ταξινόμηση: α) προβλέψεις κατά το στάδιο της προδικασίας, β) συνέπειες συμμετοχής σε θεραπευτικά προγράμματα εκτός καταστημάτων κράτησης, γ) συνέπειες της ολοκλήρωσης θεραπευτικού προγράμματος εκτός σωφρονιστικών καταστημάτων, δ) εισαγωγή σε θεραπευτικό ή ειδικό κατάστημα κράτησης και μεταγωγές και ε) υφ’ όρον απόλυση. Τέλος, στο Ένατο Κεφάλαιο γίνεται η αποτύπωση των συμπερασμάτων σχετικά με την εφαρμογή του Ν. 4139/2013 και η διατύπωση διορθωτικών παρεμβάσεων-προτάσεων σε σχετικά ζητήματα εφαρμογής του
description: This project studies the regulations of law 4139/2013 (articles 30-35) on the treatment of drug addicted offenders and the review of their enforcement in criminal procedure. The project begins( Chapter 1) with the analysis of terms “drugs’’ and ‘’addiction’’ and the crucial moment of diagnosis of drug offenders addiction during the criminal procedure. The second chapter is devoted to the study of international and national law regarding the treatment of drug addicted offenders. The third chapter is devoted to the study of the sentences regarding drug use and drug running by drug addicted offenders, as they are presented in article 30 par.4 of law 4139/2013. In addition, in 4-8 chapters are analysed the beneficial regulations of law 4139/2013 regarding the participation and the completion of rehab programs in and out of prison during the criminal procedure and specifically from the start of criminal prosecution, during the court procedure and the final moment of court proceeding (penalization and the time they serve a prison sentence). Finally, in ninth chapter are presented the final conclusions and the suggested amendments of law 4139/2013 (articles 30-35) on the treatment of drug addicted offenders and their enforcement in criminal procedure
description: Σε συνεργασία με τη Νομική Σχολή Πανεπιστημίου Λευκωσίας (Κύπρος)
Assessing Oral Production of English as a Lingua Franca in European Universities: Can Corpora Inform the Test Construct?
Creators: name: Newbold, David
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2015

description:

This article examines the rapidly growing phenomenon of the use of English as a lingua franca (ELF) in European universities and the need to develop tests which reflect this use. After reporting on a research project which introduced a lingua franca element into a receptive skills test set at Levels B1-B2 of the CEFR (reflecting current entrance requirements to first and second level degree programmes), it goes on to consider the challenges posed by assessment of the productive skills, and the possible role of corpora (learner corpora and ELF corpora) in contributing to the identification of a test construct for oral production.

description: EL.LE
Enhanced triplet superconductivity in noncentrosymmetric systems
Creators: name: Yokoyama, Takehito
name: Onari, Seiichiro
name: Tanaka, Yukio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study pairing symmetry of noncentrosymmetric superconductors based on the extended Hubbard model on square lattice near half-filling, using the random phase approximation. We show that d+f-wave pairing is favored and the triplet f-wave state is enhanced by Rashba type spin-orbit coupling originating from the broken inversion symmetry. The enhanced triplet superconductivity stems from the increase of the effective interaction for the triplet pairing and the reduction of the spin susceptibility caused by the Rashba type spin-orbit coupling which lead to the increase of the triplet component and the destruction of the singlet one, respectively.
description: 5 pages, 5 figures