cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Massive Bipolar Outflow and a Dusty Torus with Large Grains in the Pre-Planetary Nebula IRAS 22036+5306
Creators: name: Sahai, R.
name: Young, K.
name: Patel, N. A.
name: Contreras, C. S'anchez
name: Morris, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report high angular-resolution (~1") CO J=3--2 interferometric mapping, using the Submillimeter Array (SMA), of IRAS22036+5306 (I22036), a bipolar pre-planetary nebula (PPN) with knotty jets discovered in our HST SNAPshot survey of young PPNs. In addition, we have obtained supporting lower-resolution (~10") CO and 13CO J=1-0 observations with the Owens Valley Radio Observatory (OVRO) interferometer, as well as optical long-slit echelle spectra at the Palomar Observatory. The CO J=3-2 observations show the presence of a very fast (~220 km/s), highly collimated, massive (0.03 Msun) bipolar outflow with a very large scalar momentum (about 10^{39} g cm s^{-1}), and the characteristic spatio-kinematic structure of bow-shocks at the tips of this outflow. The Halpha line shows an absorption feature blue-shifted from the systemic velocity by ~100 km/s, which most likely arises in neutral interface material between the fast outflow and the dense walls of the bipolar lobes at low latitudes. The fast outflow in I22036, as in most PPNs, cannot be driven by radiation pressure. We find an unresolved source of submillimeter (and millimeter-wave) continuum emission in I22036, implying a very substantial mass (0.02-0.04 Msun) of large (radius >~1 mm), cold (< ~50 K) dust grains associated with I22036's toroidal waist. We also find that the 13C/12C ratio in I22036 is very high (0.16), close to the maximum value achieved in equilibrium CNO-nucleosynthesis (0.33). The combination of the high circumstellar mass (i.e., in the extended dust shell and the torus) and the high 13C/12C ratio in I22036 provides strong support for this object having evolved from a massive (>~4 Msun) progenitor in which hot-bottom-burning has occurred.
description: to be published in the Astrophysical Journal, 2006, Dec 20, vol 653 23 Pages Text + 8 figures (4 Color)
Confinement of monopole field lines in a superconductor at T=/=0
Creators: name: Cardoso, Marco
name: Bicudo, Pedro
name: Sacramento, Pedro D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply the Bogoliubov-de Gennes equations to the confinement of a monopole-antimonopole pair in a superconductor. This is related to the problem of a quark-antiquark pair bound by a confining string, consisting of a colour-electric flux tube, dual to the magnetic vortex of type-II superconductors. We study the confinement of the field lines due to the superconducting state and calculate the effective potential between the two monopoles. At short distances the potential is Coulombic and at large distances the potential is linear, as previously determined solving the Ginzburg-Landau equations. The magnetic field lines and the string tension are also studied as a function of the temperature $T$. Because we take into account the explicit fermionic degrees of freedom, this work may open new perspectives to the breaking of chiral symmetry or to colour superconductivity.
description: 11 pages, 10 figures
Three essays on expectations and housing price volatility
Creators: name: Clayton, Jim
Publisher: name: University of British Columbia
Year: 2009

description: This thesis contains three empirical essays on the economics of house price dynamics. The first essay derives a forward-looking rational expectations house price model and empirically tests its ability to explain short-run fluctuations in real house prices. A novel approach to proxying imputed rents of owner-occupied housing, as a function of housing market fundamentals, is derived and combined with a housing market arbitrage relation to derive a present value model for real house prices. Tests of the rational expectations, nonlinear cross-equation restrictions reject the joint null hypothesis of rational expectations and the asset-based housing price model for quarterly, single-detached house prices in the city of Vancouver, British Columbia, over the 1979-1991 sample period. The model fails to fully capture observed house price dynamics in two real estate booms but tracks real house prices well in less volatile times, suggesting that prices may temporarily deviate from fundamental values in real estate market upswings. The second essay develops and applies a test of the joint null hypothesis of rational expectations, and no risk premium in the Vancouver condominium apartment market. The results show that, on average, ex post house price changes move in the opposite direction than their rational expectation under risk neutrality. This essay also documents the predictability of excess annual condominium returns using lags of annual returns and the rent/price ratio, and quarterly returns with short-term nominal interest rates. It further shows that deviations of house price changes from their (risk neutral) rational expectation are both stationary and related to the stage of the real estate price cycle. The third essay examines whether a time-varying housing market risk premium can explain deviations in house price fluctuations from those predicted by the rational expectations hypothesis under risk neutrality. If homeowners are risk averse and housing price risk is not completely diversifiable then housing market efficiency implies that re turns to housing investment should be positively correlated with a premium for bearing risk. The first part of the essay shows that, in theory, the finding of negative slope co-efficients in tests of unbiased house price expectations under risk neutrality (in chapter 3) is attributable to omitted risk considerations if two conditions are satisfied: (1) the covariance between the risk premium and expected house price appreciation under risk neutrality is negative, and; (2) the variance of the risk premium is considerably larger than the variance of expected appreciation under risk neutrality. The second part of the essay uses a conditional capital asset pricing model to investigate whether predictable returns in the Vancouver housing market are time-varying risk premia. The empirical results are inconclusive.
Thin, thick and dark discs in LCDM
Creators: name: Read, J. I.
name: Lake, G.
name: Agertz, O.
name: Debattista, Victor P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a LCDM cosmology, the Milky Way accretes satellites into the stellar disc. We use cosmological simulations to assess the frequency of near disc plane and higher inclination accretion events, and collisionless simulations of satellite mergers to quantify the final state of the accreted material and the effect on the thin disc. On average, a Milky Way-sized galaxy has 3 subhalos with vmax>80km/s; 7 with vmax>60km/s; and 15 with vmax>40km/s merge at redshift z>1. Assuming isotropic accretion, a third of these merge at an impact angle <20 degrees and are dragged into the disc plane by dynamical friction. Their accreted stars and dark matter settle into a thick disc. The stellar thick disc qualitatively reproduces the observed thick disc at the solar neighbourhood, but is less massive by a factor ~2-10. The dark matter disc contributes 0.25-1 times the halo density at the solar position. Although not likely to be dynamically interesting, the dark disc has important implications for the direct detection of dark matter because of its low velocity with respect to the Earth. Higher inclination encounters (>20 degrees) are twice as likely as low inclination ones. These lead to structures that closely resemble the recently discovered inner/outer stellar halos. They also do more damage to the Milky Way stellar disc creating a more pronounced flare, and warp; both long-lived and consistent with current observations. The most massive mergers (vmax>80km/s) heat the thin disc enough to produce a thick disc. These heated thin disc stars are essential for obtaining a thick disc as massive as that seen in the Milky Way; they likely comprise some ~50-90% of the thick disc stars. The Milky Way thin disc must reform from fresh gas after z=1 [abridged].
description: 19 pages; 14 figures. Accepted version to appear in MNRAS. Improved halo finding led to a slight increase in subhalo masses at high redshift; conclusions unaltered
Η θανατική ποινή και η θανατηφόρα βία στην οθωμανική κοινωνία με βάση οθωμανικές δικαστικές πηγές (17ος-18ος αιώνας)
Creators: name: Πεγνίογλου, Ευμορφία Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Ιστορία-Οθωμανική κοινωνία
Θάνατος-Οθωμανική κοινωνία
History-Ottoman society
Death-Ottoman society

description: Η παρούσα μελέτη πραγματεύεται τις νομικές συμπεριφορές των οθωμανών υπηκόων, δυνατών και αδυνάτων, όπως αυτές αποτυπώνονται στα ιεροδικαστικά έγγραφα του 17ου και 18ου αιώνα από διάφορες περιοχές των Βαλκανίων και της Μικράς Ασίας, έχοντας ως φόντο το ποινικό κομμάτι της οθωμανικής δικαιοσύνης και πιο συγκεκριμένα τις θανατηφόρες βίαιες ενέργειες και τη θανατική ποινή ως τιμωρία κάποιας βίαιης ενέργειας. Σε δεύτερο επίπεδο φάνηκε ο τρόπος που αντιμετώπιζε το ιεροδικείο την κάθε ποινική υπόθεση και τα νομικά τεχνάσματα που χρησιμοποιούσαν οι διάδικοι, καθώς και η επιρροή που ασκούσε ή δεχόταν η κοινωνία κατά περίπτωση. Τα ιεροδικαστικά έγγραφα αν και λίγα στον αριθμό αποδεικνύουν ότι το ιεροδικείο αποτελούσε έναν από τους προσφιλείς τρόπους αντιμετώπισης των ποινικών υποθέσεων των υπηκόων. Το οθωμανικό ιεροδικείο αποτελούσε την πλατφόρμα όπου οι «πελάτες» του έδειχναν την διαπραγματευτική τους ισχύ. Δεν ήταν ένας μονολιθικός θεσμός απονομής δικαιοσύνης και εντός του πλαισίου του νόμου ο καδής μπορούσε να μεροληπτεί και οι διάδικοι να δρουν ωφελιμιστικά.
description: The present thesis is dealing with the legal behavior of the ottoman subjects, powerful and powerless, according to ottoman legal documents of the 17th and 18th century which came from various areas of the Balkans and Asia Minor. These behaviors have as a background the ottoman criminal law and especially the deadly violent acts and the death penalty as a result of a violent act. In a second level the paper examines the way ottoman court dealt these cases and the legal tricks used by the litigants as well as the level of influence that derived from the society and how society was influence by legal criminal cases. The ottoman court records are not numerous but they show that the court was preferred among other solutions by their “clients”. These “clients” showed their negotiatory power in this platform called, ottoman court. The ottoman court was not monolithic institution, inside the court kadi could be partial but not illegal and the ottoman subjects could act for their own good.
Numerical Simulations of Type Ia Supernova Explosions
Creators: name: Roepke, F. K.
name: Hillebrandt, W.
name: Gieseler, M.
name: Reinecke, M.
name: Travaglio, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a systematic study of the diversity of three-dimensional deflagration simulations of Type Ia supernova explosions arising from variations of the initial parameters. By altering the carbon mass fraction, the central density, and the metallicity of the progenitor white dwarf star, we set up a grid of numerical explosion models. While changing the central density has the largest impact on the explosion energy, the largest variation in the 56Ni production is found by changing the metallicity of the models. Varying the carbon mass fraction hardly affects the 56Ni synthesized although it alters the energetics of the explosion. Possible consequences for the shape of light curves of Type Ia supernovae are discussed.
description: 5 pages, 2 figures, has been published in the Proceedings of the 12th Workshop on Nuclear Astrophysics, Ringberg Castle, Germany, 2004, Eds. E. Mueller and H.-T. Janka, MPA Proceedings Series (2004)
Παραμετρική ανάλυση και βελτιστοποίηση θερμικής συμπεριφοράς τοίχων θερμικής αποθήκευσης
Creators: name: Δρακωνάκης, Γεώργιος Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Παθητικά ηλιακά συστήματα
Τοίχος μάζας
Ενεργειακή προσομοίωση
Passive solar systems
Μass wall
Energy simulation

description: Σκοπός της διπλωματικής εργασίας είναι η μελέτη της θερμικής συμπεριφορά ενός τοίχου θερμικής αποθήκευσης (ηλιακός τοίχος μάζας). Παράλληλα μελετάει την επίδρασή μίας σειράς παραμέτρων του τοίχου μάζας προσπαθώντας να βελτιώσει την απόδοση του. Στο τεύχος, περιλαμβάνονται κάποιες γενικές πληροφορίες, για τη βιοκλιματική αρχιτεκτονική και την ηλιακή ενέργεια. Αναλύονται οι βασικές αρχές λειτουργίας των παθητικών ηλιακών συστημάτων, καθώς και μία πιο εκτεταμένη αναφορά στη λειτουργία και τον σχεδιασμό των τοίχων θερμικής αποθήκευσης. Στη συνέχεια παρουσιάζονται τα προγράμματα που χρησιμοποιήθηκαν (συγκεκριμένα το πρόγραμμα ενεργειακής προσομοίωσης EnergyPlus, και το σχεδιαστικό πρόγραμμα Google Sketchup). Γίνεται μία λεπτομερής αναφορά στο μοντέλο προσωμοίωσης (ο τρόπος δόμησής του, τα στοιχεία λειτουργίας του και οι παραμέτροι που επιλέχθηκαν να μελετηθούν). Ακολουθεί η διαδικασία βελτίωσης της θερμικής συμπεριφοράς όπου καταστρώνονται 3 σενάρια βελτίωσης, τα οποία εφαρμόζονται και αξιολογούνται . Τέλος μελετάται η απόδοση του τοίχου μάζας, για μία σειρά παραμέτρους, που επηρεάζουν την λειτουργία και την απόδοση ενός τοίχου θερμικής αποθήκευσης, συνοδευόμενα από την ερμηνεία των αποτελεσμάτων
description: The aim of this thesis is to study the thermal behavior of a thermal storage wall (mass solar wall), while studying the effect of a number of parameters of the wall trying to improve its performance. In this issue, general information on bioclimatic architecture and solar energy is included. There is an analysis of the basic principles of operation of passive solar systems and also a more extensive reference to the function and design of thermal storage walls. Following that, the programs used are presented (in particular the energy simulation program EnergyPlus, and the Google Sketchup design program) and a detailed reference to the simulation model i.e. the way of structuring, data of service and the parameters chosen to be studied. Further down there is the process of improving the thermal behavior; three improvement scenarios are planned, implemented and evaluated . Finally we study the performance of the mass wall for a number of parameters that affect the operation and performance of a thermal storage wall, along with the interpretation of results.
The arrow of time, black holes, and quantum mixing of large N Yang-Mills theories
Creators: name: Festuccia, Guido
name: Liu, Hong
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum gravity in an AdS spacetime is described by an SU(N) Yang-Mills theory on a sphere, a bounded many-body system. We argue that in the high temperature phase the theory is intrinsically non-perturbative in the large N limit. At any nonzero value of the 't Hooft coupling $λ$, an exponentially large (in N^2) number of free theory states of wide energy range (of order N) mix under the interaction. As a result the planar perturbation theory breaks down. We argue that an arrow of time emerges and the dual string configuration should be interpreted as a stringy black hole.
description: 50 pages 3 figures uses harvmac
Σχολιασμένη μετάφραση από τα Ισπανικά προς τα Ελληνικά Τίτλος άρθρου: El “intérprete” audiovisual y el humor en el doblaje
Creators: name: Ευθυμίου, Χριστίνα Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: οπτικοακουστική μετάφραση
υποτιτλισμός
μεταγλώττιση
audiovisual translation
subtitling
dubbing

description: Κύριος στόχος της παρούσας μεταπτυχιακής εργασίας είναι η παραγωγή σχολιασμένης μετάφρασης από τα Ισπανικά στα Ελληνικά του άρθρου με τίτλο El intérprete audiovisual y el humor en el doblaje [Ο οπτικοακουστικός διερμηνέας και το χιούμορ στη μεταγλώττιση] του Αντόνιο Φορές Λόπεθ, καθηγητή του Πολυτεχνικού Πανεπιστημίου της Βαλένθια. Το άρθρο αυτό περιλαμβάνεται, μαζί με άλλα τέσσερα άρθρα μεταφρασεολογικού περιεχομένου, στο βιβλίο Interculturalidad y traducción en cine, televisión y teatro [Διαπολιτισμικότητα και μετάφραση στον κινηματογράφο, την τηλεόραση και το θέατρο] των εκδόσεων Tirant Humanidades (Βαλένθια, 2012). Εκτός από τη μετάφραση του κειμένου σκοπός της εργασίας ήταν επίσης η εξαγωγή ορολογίας, η τεκμηρίωσή της, καθώς και η ανάλυση της ορολογικής έρευνας και των μεταφραστικών δυσκολιών κατά τη μεταφραστική διαδικασία. Στην εισαγωγή επίσης παρατίθεται μία σύντομη ανασκόπηση της οπτικοακουστικής μετάφρασης παγκοσμίως προκειμένου να αποσαφηνιστεί ο όρος. Έμφαση ακόμη δίνεται σε μια σύντομη αναδρομή τόσο σε μεταφρασεολογικό όσο και σε ιστορικό πλαίσιο με αναφορές σε εξειδικευμένες τεχνικές που ακολουθούνται από τους οπτικοακουστικούς μεταφραστές. Τέλος, όπως γίνεται κατανοητό και από τον τίτλο του άρθρου, επιβάλλεται να γίνει αναφορά επίσης στο χιούμορ, αλλά και στις θεωρίες που αναπτύχθηκαν σχετικά με αυτό.
description: The present MA thesis mainly aims to the production of an annotated translation from Spanish into Greek of the article titled El intérprete audiovisual y el humor en el doblaje (The audiovisual interpreter and the humour in dubbing) by Antonio Forés López, professor at the Politecnic University of Valencia. The article is included along with four other articles on traductology in the book titled Interculturalidad y traducción en cine, televisión y teatro (Interculturalism and translation in cinema, television and theatre), published by Tirant Humanidades (Valencia, 2012). Apart from the translation, the present work’s objective was also terminology extraction and documentation as well as the analysis of terminology research and translational difficulties during the process of translating. In the introduction there is also a review of the audiovisual translation at an international level to clarify the term. Emphasis is also laid on a brief historical summary of the audiovisual translation both in a traductological and a historical framework with references to specialized techniques utilized by translators. To conclude with, as it is obvious from the title of the article, it is obligatory to also refer to humour and the theories developed about it.
Small group elicitation session on locatives and directionals
Creators: name: Massoma, Achille
name: Borchardt, Nadine
name: Lionnet, Florian
name: Hyman, Larry M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: abb

description: Locative "in" + country: "The bag is in Cameroon"; locatives "over" and "on top of"; directional "to" (final destination); directional "towards"; locative "from", "far away"; locatives/directionals: "across", "(go) through"; Locatives: "through", "on my way to", "along".
All feedback arc sets of a random Turán tournament have n/k-k+1 disjoint k-cliques (and this is tight)
Creators: name: Nassar, Safwat
name: Yuster, Raphael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C20, 05C35, 05C80

description: We look at structures that must be removed (or reversed) in order to make acyclic a given oriented graph. For a directed acyclic graph $H$ and an oriented graph $G$, let $f_H(G)$ be the maximum number of pairwise disjoint copies of $H$ that can be found in {\em all} feedback arc sets of $G$. In particular, to make $G$ acyclic, one must remove (or reverse) $f_H(G)$ pairwise disjoint copies of $H$. Most intriguing is the case where $H$ is a $k$-clique, where the parameter is denoted by $f_k(G)$. Determining $f_k(G)$ for arbitrary $G$ seems challenging. Here we determine $f_k(G)$ precisely for almost all $k$-partite tournaments. Let $s(G)$ denote the size of the smallest vertex class of a $k$-partite tournament $G$. We prove that for all sufficiently large $s=s(G)$, a random $k$-partite tournament $G$ satisfies $f_k(G) = s(G)-k+1$ almost surely. In particular, as the title states, $f_k(G) = \lfloor n/k\rfloor-k+1$ almost surely, where $G$ is a random orientation of the Turán graph $T(n,k)$.
description: 23 pages
In vitro επαγωγή TLR7 ανοχής στα λεμφοκύτταρα του δότη και η επίδρασή της στην GvHD και GvL σε μοντέλο ξενομεταμόσχευσης
Creators: name: Παρασκευάς, Βασίλειος Απόστολου Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Νόσος μοσχεύματος κατά ξενιστή
Τ-λεμφοκύτταρα
Μοντέλο ξενομεταμόσχευσης
Graft-vs-Host Disease
T-cells
Xenograft model

description: Η αλληλεπίδραση του μοσχεύματος με τον ξενιστή οδηγεί σε ποικίλες ανοσολογικές αποκρίσεις μεταξύ των οποίων η επιβλαβής νόσος του μοσχεύματος κατά ξενιστή (Graft-vs-Host Disease) και το προστατευτικό GvL (Graft-vs-Leukemia) φαινόμενο. Στην παρούσα εργασία διερευνήθηκε η ικανότητα των in vitro TLR7-απευαισθητοποιημένων λεμφοκυττάρων του δότη να διατηρούν την GvL δράση τους, προστατεύοντας το λήπτη από την υποτροπή στη βασική νόσο, σε μοντέλο ξενομεταμόσχευσης NSG ποντικών χωρίς την εκδήλωση aGvHD. Η TLR7-απευαισθητοποίηση πραγματοποιήθηκε με τη χρήση κατάλληλου αγωνιστή (R848) του TLR7 σε επαναλαμβανόμενες δόσεις πριν τη χορήγηση των κυττάρων σε NSG ζώα. Οι ακτινοβολημένοι λήπτες NSG αρχικά έλαβαν PBMCs από ασθενή με >90% AML βλάστες στην περιφέρεια Η TLR7-απευαισθητοποίηση πραγματοποιήθηκε με τη χρήση κατάλληλου αγωνιστή (R848) του TLR7 σε επαναλαμβανόμενες δόσεις πριν τη χορήγηση των κυττάρων σε NSG ζώα. Φαίνεται ότι τα TLR7-απευαισθητοποιημένα λεμφοκύτταρα ασκούν GvL προστατευτική δράση ενώ παράλληλα καθυστερούν ή και προλαμβάνουν την εκδήλωση της GvHD.
description: The beneficial graft-versus-leukemia (GVL) reaction and the detrimental complication graft-versus-host disease (GVHD) are common immunologic responses after allo-HSCT. In the current study we investigated the ability of TLR7-tolerised donor lymphocytes to maintain the beneficial GvL effect while preventing aGvHD in a xenotransplantation model. TLR7 tolerization was in vitro induced by small doses of TLR7 ligand R848 for 3 days. The TLR7-tolerized donor lymphocytes can exert the beneficial GvL reaction whilst preventing aGvHD in this xenotransplant model. Taking into consideration that the donor’s health is not affected by the in vitro manipulation of donor T-cells, the use of TLR7 tolerized DLIs can easily be translated to the clinical application of allogeneic HSCT.
Διερεύνηση της μείωσης της γενοτοξικότητας με ένα νέο λεντι-ιικό φορέα β-σφαιρίνης με ενσωματωμένο μονωτή χρωματίνης ανθρώπου
Creators: name: Παπαγιάννη, Γεωργία Πηνελόπη Αριστείδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Μονογονιδιακές ασθένειες
Μονωτές χρωματίνης
Ιικοί φορείς
Monogenic disorders
Chromatin insulators
Vectors

description: Στην παρούσα εργασία, ερευνάται ο βελτιστοποιημένος ιικός φορέας β-σφαιρίνης ΤΝS9.3.55-Α1, ο οποίος φέρει ενσωματωμένο έναν νέο, μικρού μεγέθους, ανθρώπινο μονωτή χρωματίνης (Α1), ως προς 1) την ικανότητα διαμόλυνσης CD34+ κυττάρων θαλασσαιμικών ασθενών 2) επιτυχή έκφραση του διαγονιδίου, invitro και invivo, ύστερα από επαναπληθυσμοποίηση NOD-SCID λήπτών με τα γενετικά διορθωμένα κυττάρα. 3) την ικανότητα μείωσης της γενοτοξικότητας, invitro, μέσω της διαμόλυνσης της 32D εξαρτώμενης από προσθήκη IL-3 κυτταρικής σειράς και μετέπειτα καλλιέργειας των κυττάρων παρουσία και απουσία IL-3, σε μέσο μεθυλοκυτταρίνης και 4) την ικανότητα μείωσης της γενοτοξικότητας, invivo, με χορήγηση των διαμολυσμένων κυττάρων σε C3H/HeJλήπτες και επακόλουθη αιματολογική παρακολουθηση των ληπτών για ανάπτυξη λευχαιμίας. Παρατηρήθηκε επιτυχής διαμόλυνση και έκφραση του διαγονιδίου, καθώς και προστασία από λευχαιμιογένεση στους λήπτες κυττάρων που υποβλήθηκαν σε συνθήκες ογκογόνου μετασχηματισμού και τροποποιήθηκαν γενετικά με τον μονωμένο TNS.9.3.55-A1 φορέα, έναντι του μη μονωμένουTNS.9.3.55 φορέα. Συμπερασματικά, ο νέος, μονωμένος TNS.9.3.55-A1 φορέας επιτυγχάνει αποτελεσματική διαμόλυνση των κυττάρων και υψηλή έκφραση του διαγονιδίου διατηρώντας ένα ισχυρό προφίλ ασφάλειας. Ο μονωμένος TNS.9.3.55-A1 αναμένεται να μεγιστοποιήσει την ασφάλεια της γονιδιακής θεραπείας της θαλασσαιμίας και να βελτιώσει την έκβασή της γενικότερα.
description: The aim of the present thesis was to explore an optimized lentiviral vector, insulated with a new, human small-sized insulator (A1), as for its ability to: 1) transduce CD34+ cells derived from thalassemia patients, 2) induce the expression of the b-globin gene both in vitro and in vivo in a NOD/SCID xenograft mouse model, 3) minimize the in vitro genotoxicity in methocult cultures of transduced 32D/IL-3-dependent cell line ±IL-3 and 4) minimize the in vivo genotoxicity, by addressing the leukemogenic potency of transduced cells engrafted in C3H/HeJ mice. We obesrved successful transfection, transgene expression and protection against insertion-related leukemogenesis of mice receiving cells transduced with the insulated TNS 9.3.55 A1 vector over the ones receiving cells transduced with the uninsulated TNS 9.3.55 vector. In conclusion, the new, insulated TNS.9.3.55-A1 vector achieves high transduction efficiency and high-level transgene expression, while maintaining a strong safety profile. The insulated TNS.9.3.55-A1 will potentially increase the safety of gene therapy for thalassemia and improve the outcome of gene therapy in general
The Ecological System of Innovation: A New Architectural Framework for a Functional Evidence-Based Platform for Science and Innovation Policy
Creators: name: Yawson, Robert M
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Models on innovation, for the most part, do not include a comprehensive and end-to-end view. Most innovation policy attention seems to be focused on the capacity to innovate and on input factors such as R&D investment, scientific institutions, human resources and capital. Such inputs frequently serve as proxies for innovativeness and are correlated with intermediate outputs such as patent counts and outcomes such as GDP per capita. While this kind of analysis is generally indicative of innovative behaviour, it is less useful in terms of discriminating causality and what drives successful strategy or public policy interventions. This situation has led to the developing of new frameworks for the innovation system led by National Science and Technology Policy Centres across the globe. These new models of innovation are variously referred to as the National Innovation Ecosystem. There is, however, a fundamental question that needs to be answered: what elements should an innovation policy include, and how should such policies be implemented? This paper attempts to answer this question.
Σχολιασμένη Μετάφραση από τα ισπανικά στα ελληνικά του άρθρου El control de la inmigración ilegal en la frontera exterior del Mediterráneo Central
Creators: name: Χρυσουλάκη, Χρυσούλα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: παράνομη μετανάστευση
εξωτερικά σύνορα
illegal migration
FRONTEX
external borders

description: Η παρούσα εργασία αποτελεί τη σχολιασμένη μετάφραση από τα ισπανικά στα ελληνικά του άρθρου με τίτλο «El control de la inmigración ilegal en la frontera exterior del Mediterráneo Central» της Magdalena Martínez-Almeida de Navasqüés [Μαγδαλένα Μαρτίνεθ-Αλμέιδα δε Ναβασκουές]. Το συγκεκριμένο άρθρο είναι μια πολιτική ανάλυση της κατάστασης της Ευρωπαϊκής Ένωσης και των μέσων και οργάνων που αυτή διαθέτει για να αντιμετωπίσει τη μεταναστευτική κρίση και τις αυξανόμενες ροές μεταναστών. Αρχικά, παρατίθεται η αντιστοιχισμένη μετάφραση του κειμένου με το μετάφρασμα να παρουσιάζεται αντικριστά με το πρωτότυπο κείμενο. Στη συνέχεια, η εργασία περιλαμβάνει ένα γλωσσάριο όπου συγκεντρώνονται οι όροι του κειμένου και ακολουθεί η παρουσίαση της ορολογικής έρευνας και η τεκμηρίωση των όρων. Επίσης, στο πέμπτο κεφάλαιο της εργασίας γίνεται ανάλυση των δυσκολιών που συναντήθηκαν κατά τη μεταφραστική διαδικασία. Τέλος, μετά την αναλυτική βιβλιογραφία που χρησιμοποιήθηκε ακολουθεί παράρτημα που περιλαμβάνει ένα μικρό δείγμα από το σώμα κειμένων που δημιουργήθηκε και χρησιμοποιήθηκε για τη μετάφραση του κειμένου.
description: The present paper is the commented translation from Spanish to Greek of the article with the title “El control de la inmigración ilegal en la frontera exterior del Mediterráneo Central” by Magdalena Martínez-Almeida de Navasqüés. The above mentioned article is a political analysis of the situation in the EU and of the means and instruments the EU has at its disposal to address the immigration crisis and the increasing migrant flows. Firstly, there is a presentation of the Greek translation of the text next to the original text. In continuity, the paper includes a glossary of all the terms of the text which is followed by the presentation of the terminology research and the documentation of the terms. Also, in the fifth chapter there is an analysis of the difficulties encountered during the translation process. Finally, the detailed bibliography used for the translation is followed by an appendix containing a small sample from the corpus created for the translation of the text.
Broadband X-ray spectral variability of the pulsing ULX NGC 1313 X-2
Creators: name: Robba, A.
name: Pinto, C.
name: Walton, D. J.
name: Soria, R.
name: Kosec, P.
name: Pintore, F.
name: Roberts, T. P.
name: Alston, W. N.
name: Middleton, M.
name: Cusumano, G.
name: Earnshaw, H. P.
name: Fuerst, F.
name: Sathyaprakash, R.
name: Kyritsis, E.
name: Fabian, A. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is thought that ultraluminous X-ray sources (ULXs) are mainly powered by super-Eddington accreting neutron stars or black holes as shown by recent discovery of X-ray pulsations and relativistic winds. This work presents a follow up study of the spectral evolution over two decades of the pulsing ULX NGC 1313 X-2, in order to understand the structure of the accretion disc. The primary objective is to determine the shape and nature of the dominant spectral components by investigating their variability with the changes in the source luminosity. We have performed a spectral analysis over the canonical 0.3-10 keV energy band of all the high signal-to-noise XMM-Newton observations, and we have tested a number of different spectral models, which should approximate super-Eddington accretion discs. The baseline model consists of two thermal blackbody components with different temperatures plus an exponential cutoff powerlaw. In particular, the hotter and brighter thermal component describes the emission from the super-Eddington inner disc and the cutoff powerlaw the contribution from the accretion column of the neutron star. Instead, the cooler component describes the emission from the outer region of the disc close to the spherisation radius and the wind. The luminosity-temperature relation for the cool component follows a negative trend, which is not consistent with L$\propto$T$^4$, as expected from a sub-Eddington thin disc of Shakura-Sunayev, nor with L$\propto$T$^2$, as expected for advection-dominated disc, but would rather agree with a wind-dominated X-ray emitting region. Instead, the (L,T) relation for the hotter component is somewhere in between the first two theoretical scenarios. Our findings agree with the super-Eddington scenario and provide further detail on the disc structure. The source spectral evolution is qualitatively similar to that seen in NGC1313 X-1 and HolmbergIX X-1.
description: 19 pages, including 10 figures and 8 tables, accepted for pubblication in A&A
Polar syzygies in characteristic zero: the monomial case
Creators: name: Bermejo, Isabel
name: Gimenez, Philippe
name: Simis, Aron
Publisher: name: arXiv
Year: 2007
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13F55 (Primary), 14E05, 13B22, 05E, 05C (Secondary)

description: Given a set of forms f={f_1,...,f_m} in R=k[x_1,...,x_n], where k is a field of characteristic zero, we focus on the first syzygy module Z of the transposed Jacobian module D(f), whose elements are called differential syzygies of f. There is a distinct submodule P of Z coming from the polynomial relations of f through its transposed Jacobian matrix, the elements of which are called polar syzygies of f. We say that f is polarizable if equality P=Z holds. This paper is concerned with the situation where f are monomials of degree 2, in which case one can naturally associate to them a graph G(f) with loops and translate the problem into a combinatorial one. A main result is a complete combinatorial characterization of polarizability in terms of special configurations in this graph. As a consequence, we show that polarizability implies normality of the subalgebra k[f] of R and that the converse holds provided the graph G(f) is free of certain degenerate configurations. One main combinatorial class of polarizability is the class of polymatroidal sets. We also prove that if the edge graph of G(f) has diameter at most 2 then f is polarizable. We establish a curious connection with birationality of rational maps defined by monomial quadrics.
description: 33 pages, 15 figures
Teleportation of entangled states without Bell-state measurement
Creators: name: Cardoso, W. B.
name: Avelar, A. T.
name: Baseia, B.
name: de Almeida, N. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent paper [Phys. Rev. A 70, 025803 (2004)] we presented a scheme to teleport an entanglement of zero- and one-photon states from a bimodal cavity to another one, with 100% success probability. Here, inspired on recent results in the literature, we have modified our previous proposal to teleport the same entangled state without using Bell-state measurements. For comparison, the time spent, the fidelity, and the success probability for this teleportation are considered.
description: 4 pages, 1 figure, published in Phys. Rev. A 72, 045802 (2005)
Application of Reverse Engineering and Rapid Prototyping for Reconstruction of Human Mandible
Creators: name: Allawi, Nabeel I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Reconstruction of the mandible is one of the most common challenges facing maxillofacial surgeons. The mandible plays a major role in supporting the teeth inside the mouth. This work aims to develop a proposed methodology for improving reconstructive surgery by using the simulation of a mandibular defect using imaging, design, and fabrication techniques for a custom mandible. The combination of these technologies provides a powerful way to improve and implement the implant process through the design and fabrication of medical models. This work introduces a methodology that the capabilities of Reverse Engineering (RE), Computer-Aided Design (CAD), and Rapid Prototyping Technology (RP) for the reconstruction of the mandible and representing the surgery. Patient examination using a high-resolution technique represented by Cone-beam computed tomography (CBCT), after which a representative digital model of the patient is created to assist in the design process using the 3DSlicer software The patient's implant designed (Defect part) and analyzed using Solidwork.3D models are assembled and implant simulations are performed by (Meshmixer) software, Stereolithography technology (SLA) used as 3D printing technology to fabricate the mandible model the resin. The results of this work show that procedures for mandible reconstruction can be successfully used using the integration of RE / CAD / RP technologies. This integration will support the acceptable symmetry of the face that will be restored by assisting surgeons in planning reconstruction. This work demonstrates the importance of the CAD system in resolving patient damage requirements directly from medical imaging data, as well as the efficiency of RP techniques used in converting 3D model designs into implant models.
description: 75 pages,36 figures
An N-body/SPH Study of Isolated Galaxy Mass Density Profiles
Creators: name: Foyle, Kelly
name: Courteau, Stephane
name: Thacker, Robert
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the evolution of mass density profiles in secular disk galaxy models, paying special attention to the development of a two-component profile from a single initial exponential disk free of cosmological evolution (i.e., no accretion or interactions). As the source of density profile variations, we examine the parameter space of the spin parameter, halo concentration, virial mass, disk mass and bulge mass, for a total of 162 simulations in the context of a plausible model of star formation and feedback (GADGET-2). The evolution of the galaxy mass density profile, including the development of a two-component profile with an inner and outer segment, is controlled by the ratio of the disk mass fraction, $m_{d}$, to the halo spin parameter, $λ$. The location of the break between the two components and speed at which it develops is directly proportional to $m_{d}/λ$; the amplitude of the transition between the inner and outer regions is however controlled by the ratio of halo concentration to virial velocity. The location of the divide between the inner and outer profile does not change with time. (Abridged)
description: 27 pages, 31 figures. Accepted for publication at MNRAS. A high-resolution version of the paper with figures can be found here http://www.mpia-hd.mpg.de/~foyle/papers/MN-07-1491-MJ.R1.pdf
Stellar model atmospheres with magnetic line blanketing. III. The role of magnetic field inclination
Creators: name: Khan, S. A.
name: Shulyak, D. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. See abstract in the paper. Aims. In the last paper of this series we study the effects of the magnetic field, varying its strength and orientation, on the model atmosphere structure, the energy distribution, photometric colors and the hydrogen Balmer line profiles. We compare with the previous results for an isotropic case in order to understand whether there is a clear relation between the value of the magnetic field angle and model changes, and to study how important the additional orientational information is. Also, we examine the probable explanation of the visual flux depressions of the magnetic chemically peculiar stars in the context of this work. Methods. We calculated one more grid of the model atmospheres of magnetic A and B stars for different effective temperatures (Teff=8000K, 11000K, 15000K), magnetic field strengths (B=0, 5, 10, 40 kG) and various angles of the magnetic field (Omega=0-90 degr) with respect to the atmosphere plane. We used the LLmodels code which implements a direct method for line opacity calculation, anomalous Zeeman splitting of spectral lines, and polarized radiation transfer. Results. We have not found significant changes in model atmosphere structure, photometric and spectroscopic observables or profiles of hydrogen Balmer lines as we vary the magnetic field inclination angle Omega. The strength of the magnetic field plays the main role in magnetic line blanketing. We show that the magnetic field has a clear relation to the visual flux depressions of the magnetic CP stars. Conclusions. See abstract in the paper.
description: 10 pages, 5 figures
Designing calibration and expressivity-efficient instruction sets for quantum computing
Creators: name: Murali, Prakash
name: Lao, Lingling
name: Martonosi, Margaret
name: Browne, Dan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Near-term quantum computing (QC) systems have limited qubit counts, high gate (instruction) error rates, and typically support a minimal instruction set having one type of two-qubit gate (2Q). To reduce program instruction counts and improve application expressivity, vendors have proposed, and shown proof-of-concept demonstrations of richer instruction sets such as XY gates (Rigetti) and fSim gates (Google). These instruction sets comprise of families of 2Q gate types parameterized by continuous qubit rotation angles. However, having such a large number of gate types is problematic because each gate type has to be calibrated periodically, across the full system, to obtain high fidelity implementations. This results in substantial recurring calibration overheads even on current systems which use only a few gate types. Our work aims to navigate this tradeoff between application expressivity and calibration overhead, and identify what instructions vendors should implement to get the best expressivity with acceptable calibration time. We develop NuOp, a flexible compilation pass based on numerical optimization, to efficiently decompose application operations into arbitrary hardware gate types. Using NuOp and four important quantum applications, we study the instruction set proposals of Rigetti and Google, with realistic noise simulations and a calibration model. Our experiments show that implementing 4-8 types of 2Q gates is sufficient to attain nearly the same expressivity as a full continuous gate family, while reducing the calibration overhead by two orders of magnitude. With several vendors proposing rich gate families as means to higher fidelity, our work has potential to provide valuable instruction set design guidance for near-term QC systems.
description: 14 pages, 11 figures
GRB 050822: Detailed analysis of an XRF observed by Swift
Creators: name: Godet, O.
name: Page, K. L.
name: Osborne, J.
name: Zhang, B.
name: Burrows, D. N.
name: O'Brien, P. T.
name: Hill, J. E.
name: Racusin, J.
name: Beardmore, A. P.
name: Goad, M. R.
name: Falcone, A.
name: Morris, D. C.
name: Ziaeepour, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the temporal and spectral characteristics of the early X-ray emission from the GRB 050822 as observed by Swift. This burst is likely to be an XRF showing major X-ray flares in its XRT light-curve. The quality of the data allows a detailed spectral analysis of the early afterglow in the X-ray band. During the X-ray flares, a positive correlation between the count rate and the spectral hardness (i.e. the higher the count rate, the harder the spectrum) is clearly seen for the X-ray flares. This behaviour, similar to that seen for Gamma-ray pulses, indicates that the energy peak of the spectrum is in the XRT energy band and it moves towards lower energies with time. We show evidence for the possible detection of the emergence of the forward-shock emission, produced at a radius larger than 4x10^16 cm in the case of a CBM afterglow model (a formation region clearly different from that producing the prompt emission). Finally, we show that the null detection of a jet break up to T_0 + 4x10^6 s in the X-ray light curve of this XRF can be understood: i) if the jet seen on-axis is uniform with a large opening angle theta > 20 degrees); or ii) if the jet is a structured Gaussian-like jet with the line-of-sight outside the bright Gaussian core.
description: Now accepted for publication in A&A
Cosmic Neutrinos and the Energy Budget of Galactic and Extragalactic Cosmic Rays
Creators: name: Halzen, Francis
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Although kilometer-scale neutrino detectors such as IceCube are discovery instruments, their conceptual design is very much anchored to the observational fact that Nature produces protons and photons with energies in excess of 10^{20} eV and 10^{13} eV, respectively. The puzzle of where and how Nature accelerates the highest energy cosmic particles is unresolved almost a century after their discovery. We will discuss how the cosmic ray connection sets the scale of the anticipated cosmic neutrino fluxes. In this context, we discuss the first results of the completed AMANDA detector and the science reach of its extension, IceCube.
description: 13 pages, Latex2e, 3 postscript figures included. Talk presented at the International Workshop on Energy Budget in the High Energy Universe, Kashiwa, Japan, February 2006
The quest for light multineutron systems
Creators: name: Marques, F. Miguel
name: Carbonell, Jaume
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The long history of the research concerning the possible existence of bound or resonant states in light multineutron systems, essentially $^3$n and $^4$n, is reviewed. Both the experimental and the theoretical points of view have been considered, with the aim of showing a clear picture of all the different detection and calculation techniques that have been used, with particular emphasis in the issues that have been found. Finally, some aspects of the present and future research in this field are discussed.
description: Accepted for publication in European Physical Journal A
Classical antiferromagnet on a hyperkagome lattice
Creators: name: Hopkinson, John M.
name: Isakov, Sergei V.
name: Kee, Hae-Young
name: Kim, Yong Baek
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by recent experiments on Na_4Ir_3O_8 [Y. Okamoto, M. Nohara, H. Aruga-Katori, and H. Takagi, arXiv:0705.2821 (unpublished)], we study the classical antiferromagnet on a frustrated three-dimensional lattice obtained by selectively removing one of four sites in each tetrahedron of the pyrochlore lattice. This ``hyperkagome'' lattice consists of corner-sharing triangles. We present the results of large-N mean field theory and Monte Carlo computations on O(N) classical spin models. It is found that the classical ground states are highly degenerate. Nonetheless a nematic order emerges at low temperatures in the Heisenberg model (N=3) via ``order by disorder'', representing the dominance of coplanar spin configurations. Implications for ongoing experiments are discussed.
description: 4 pages, 6 figures, published version
Form factors in B->f0(980) and D->f0(980) transitions from dispersion relations
Creators: name: El-Bennich, B.
name: Leitner, O. M. A.
name: Loiseau, B.
name: Dedonder, J. -P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within the dispersion relation approach we give the double spectral representation for space-like and time-like B-> f_0(980) and D-> f_0(980) transition form factors in the full q^2 range. The spectral densities, being the input of the dispersion relations, are obtained from a triangle diagram in the relativistic quark model.
description: Talk given at MESON 2006, Krakow, 9-13 June 2006