cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MPEC 2024-T93 : 2024 TQ1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TQ1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Λόγοι άρσης του αδίκου στο πεδίο της ιατρικής ποινικής ευθύνης
Creators: name: Κεραμάρη, Ανδρομάχη Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Λόγοι άρσης του αδίκου στην ιατρική ποινική ευθύνη
Ιατρική ευθύνη
Λόγοι άρσης του αδίκου
Causes of non-imputability in the field of criminal medical liability
Criminal medical liability
Causes of non-imputability

description: Με την παρούσα διπλωματική εργασία επιχειρείται η εφαρμογή μιας γνωστής δογματικής κατηγορίας του κοινού ποινικού δικαίου, ήτοι των λόγων άρσης του αδίκου στο πεδίο της ιατρικής ποινικής ευθύνης. Ενόψει του ότι το συγκεκριμένο ζήτημα αποτελεί μια εξαιρετικά ευρεία θεματική, κρίθηκε αναγκαία η επιλογή μεταξύ περισσότερων λόγων άρσης του αδίκου. Έτσι, στην εργασία αναπτύσσονται: α) η συναίνεση του παθόντος ως ο παραδοσιακά προτεινόμενος λόγος άρσης του αδίκου στην ιατρική ευθύνη, β) η επιτρεπόμενη κινδυνώδης δράση λόγω της ξεχωριστής σημασίας της για την ιατρική ευθύνη και του ενδιαφέροντος που παρουσιάζει μέσα από την αντιπαραβολή της με το δογματικό μέγεθος της εξωτερικής αμέλειας και η γ) η σύγκρουση καθηκόντων, καθώς κάποια από τα πιο ενδιαφέροντα ζητήματα στο χώρο της ιατρικής πράξης εμπίπτουν στο πεδίο του εν λόγω οριακού θεσμού. Τέλος, διερευνάται η δυνατότητα εφαρμογής δ) της προσταγής του άρθρου 21 ΠΚ στην ευθύνη των ειδικευόμενων ιατρών, καθώς στη νοσοκομειακή πρακτική κυριαρχεί το φαινόμενο οι τελευταίοι να διενεργούν κρίσιμες ιατρικές πράξεις στα πλαίσια εκτέλεσης εντολών των ειδικών ιατρών
description: The present thesis attempts to apply a well-known dogmatic category of common penal law, namely the causes of non-imputability, on the field of criminal medical liability. Ιn view of the fact that the specific issue constitutes a field of exceptional range, it has been deemed necessary to choose among numerous causes of imputability. Ιn this manner, in the present thesis the following are examined and discussed: (a) consent of the injured person as the traditionally proposed cause on non-imputability in medical liability; (b) the permissible and acceptable risk of a medical activity due to its significance in medical liability and the interest it presents through its comparison to the dogmatic measure of the external cause of negligence and (c) conflict of duties, as certain among the most interesting issues in the field of medical practice fall within the field of the specific marginal definition. Finally, the possibility to implement (d) the command set out in Article 21 of the Penal Code on the liability of the doctors in training is examined, as the phenomenon of the latter conducting crucial medical actions, within the mandate of the specialized doctors, prevails in hospital practice
Βαφικές ιδιότητες μοριοσανίδων (MDF) με ταυτόχρονη χρήση απορροφητών υπεριώδους ακτινοβολίας (UV absorber) και μελέτη αντοχών στο φως
Creators: name: Χουσμεκερίδου, Ελευθερία Ισαάκ
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Μοριοσανίδες
Απορροφητές ακτινοβολίας
Βαφική
Fiberboard
UV absorbers
Dying

description: Στην παρούσα μελέτη, μελετήθηκαν οι βαφικές ιδιότητες των μοριοσανίδων μεσαίας πυκνότητας καθώς και η μελέτη αντοχών στο φως και στην εξάχνωση. Επίσης έγινε προσπάθεια λεύκανσης της λιγνίνης και μέτρηση των ιδιοτήτων της σε χρωματοφωτόμετρο. Επίσης χρησιμοποιήθηκαν απορροφητές ακτινοβολίας UV και μετρήθηκε η αντοχή τους σε συνδυασμό με κάποια χρωστική. Τέλος χρησιμοποιήθηκαν σταθεροποιητές λιγνίνης και φωτοσταθεροποιητές και μελετήθηκαν τα αποτελέσματα τους σε συνδυασμό επίσης με κάποια χρωστική. Σε όλα τα δείγματα έγιναν μετρήσεις για συγκεκριμένο χρονικό διάστημα για να πάρουμε μια σαφής εικόνα των αποτελεσμάτων.
description: In this study the dye properties of medium density fibers as well as the study of light and sublimation were studied. An attempt was also made to bleach lignin and measure its properties on a chromatophotometer. UV absorber were also used, and their strength was measured in combination with a pigment. Finally, lignin stabilizer and light stabilizer were used and their effects were studied in combination with some pigment. All samples were measured for a specific time period to get a clear picture of the results.
Διοικητική Εκτέλεση και Σύνταγμα
Creators: name: Βαλεργάκη, Μαίρη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Διοικητική Εκτέλεση
Νόμιμος Τίτλος
Σύνταγμα
Administrative Execution
Legal Title
Constitution

description: Η παρούσα διπλωματική εργασία φιλοδοξεί να περιγράψει τη διαδικασία της διοικητικής εκτέλεσης που αφορά τη διαδικασία αναγκαστικής είσπραξης των δημοσίων εσόδων υπό το πρίσμα των συνταγματικών αρχών. Στην εισαγωγή του έργου αυτού παρατίθεται εν συντομία η ιστορική αναδρομή της διοικητικής εκτέλεσης και στη συνέχεια η έννοια των δημοσίων εσόδων. Στο πρώτο κεφάλαιο της παρούσας εργασίας αναλύονται οι ουσιαστικές προϋποθέσεις για την έναρξη της διοικητικής εκτέλεσης, δηλαδή η ύπαρξη απαίτησης και νόμιμου τίτλου, η ταμειακή βεβαίωση και το ληξιπρόθεσμο της απαίτησης και η αποστολή της ατομικής ειδοποίησης. Στη συνέχεια, στο δεύτερο κεφάλαιο περιγράφεται η διαδικασία της εκτέλεσης και συγκεκριμένα τα στάδια της κατάσχεσης και του πλειστηριασμού. Το τρίτο κεφάλαιο είναι αφιερωμένο στην άμυνα του οφειλέτη στη διοικητική εκτέλεση και στο τέταρτο κεφάλαιο παρατίθενται διάφορα ζητήματα συνταγματικού χαρακτήρα τα οποία ανακύπτουν κατά τη διαδικασία της διοικητικής εκτέλεσης. Στο τέλος διατυπώνονται κάποια συμπεράσματα για το σύνολο του παρόντος έργου
description: This dissertation aims το describe the steps of administrative execution concerning the procedure for the compulsory collection of public revenues under the light of the constitutional principles. Ιn the introduction of this work, is briefly presented the historical perspective of administrative execution and then the concept of public revenues. In the first chapter of this dissertation the substantive conditions for the commencement of administrative execution are analysed; that is the existence of a claim and a legal title. Then the cash confirmation and the outstanding of the claim are developed as well as the sending of the personal notice. Next, in the second chapter, the execution procedure is described and particularly the stages of confiscation and auction. The third chapter deals with the debtor’s defense against administrative execution. In the fourth chapter are discussed various constitutional issues that arise during the administrative execution procedure. Finally, some conclusions are drawn about the above dissertation
Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies
Creators: name: Chernozatonskii, L. A.
name: Sorokin, P. B.
name: Belova, E. E.
name: Bruning, J.
name: Fedorov, A. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It has been found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrange-ment of its electronic spectrum: metallic waveguides with a high density of states near the Fermi level are formed along the vacancy lines. In the direction perpendicular to these lines, the spectrum exhibits a semimetal or semiconductor character with a gap where a vacancy miniband is degenerated into impurity levels.
description: 4 pages, 3 figures
Data-Driven Methods for Present and Future Pandemics: Monitoring, Modelling and Managing
Creators: name: Alamo, Teodoro
name: Reina, Daniel G.
name: Gata, Pablo Millán
name: Preciado, Victor M.
name: Giordano, Giulia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: This survey analyses the role of data-driven methodologies for pandemic modelling and control. We provide a roadmap from the access to epidemiological data sources to the control of epidemic phenomena. We review the available methodologies and discuss the challenges in the development of data-driven strategies to combat the spreading of infectious diseases. Our aim is to bring together several different disciplines required to provide a holistic approach to epidemic analysis, such as data science, epidemiology, and systems-and-control theory. A 3M-analysis is presented, whose three pillars are: Monitoring, Modelling and Managing. The focus is on the potential of data-driven schemes to address three different challenges raised by a pandemic: (i) monitoring the epidemic evolution and assessing the effectiveness of the adopted countermeasures; (ii) modelling and forecasting the spread of the epidemic; (iii) making timely decisions to manage, mitigate and suppress the contagion. For each step of this roadmap, we review consolidated theoretical approaches (including data-driven methodologies that have been shown to be successful in other contexts) and discuss their application to past or present epidemics, such as Covid-19, as well as their potential application to future epidemics.
description: 24 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:2006.01731
MPEC 2024-T94 : 2024 TR1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TR1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Effect of conformations on charge transport in a thin elastic tube
Creators: name: Balakrishnan, Radha
name: Dandoloff, Rossen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of conformations on charge transport in a thin elastic tube. Using the Kirchhoff model for a tube with any given Poisson ratio, cross-sectional shape and intrinsic twist, we obtain a class of exact solutions for its conformation. The tube's torsion is found in terms of its intrinsic twist and its Poisson ratio, while its curvature satisfies a nonlinear differential equation which supports exact {\it periodic} solutions in the form of Jacobi elliptic functions, which we call {\it conformon lattice} solutions. These solutions typically describe conformations with loops. Each solution induces a corresponding quantum effective {\it periodic} potential in the Schrödinger equation for an electron in the tube. The wave function describes the delocalization of the electron along the central axis of the tube. We discuss some possible applications of this novel mechanism of charge transport.
A longer XMM-Newton look at I Zwicky 1: physical conditions and variability of the ionised absorbers
Creators: name: Costantini, E.
name: Gallo, L. C.
name: Brandt, W. N.
name: Fabian, A. C.
name: Boller, Th.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a spectral analysis of the narrow-line Seyfert 1 galaxy I Zwicky 1, focusing on the characteristics of the ionised absorbers as observed with XMM-Newton in 2005. The soft X-ray spectrum shows absorption by two components of ionised gas with a similar column density (N_H~10^{21} cm^{-2}) and ionisation parameters logξ~0 and 2.5. Comparing this observation with a 2002 XMM-Newton data set, we see a clear anti-correlation between the X-ray ionisation parameter xi_X and the 0.1-10 keV luminosity. Viable explanations for this effect include transient clouds or filaments crossing the line of sight in a complex geometry or a gas observed in non-equilibrium. The outflow velocity of the X-ray low-ionisation absorber is consistent with the outflow of the UV absorber detected in a past Hubble Space Telescope observation. In addition, the ionic column densities of CIV and NV derived from the X-ray model are consistent with the UV values. This suggests that the low-ionisation outflowing gas may survive for many years, despite large changes in flux, and that there is a tight connection between the X-ray and UV absorbers that can only be confirmed with a simultaneous UV and X-ray observation.
description: 9 pages, 9 figures. Accepted for publication in MNRAS
Gravitational Production of Dark Matter during Reheating
Creators: name: Mambrini, Yann
name: Olive, Keith A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the direct $s$-channel gravitational production of dark matter during the reheating process. Independent of the identity of the dark matter candidate or its non-gravitational interactions, the gravitational process is always present and provides a minimal production mechanism. During reheating, a thermal bath is quickly generated with a maximum temperature $T_{\rm max}$, and the temperature decreases as the inflaton continues to decay until the energy densities of radiation and inflaton oscillations are equal, at $T_{\rm RH}$. During these oscillations, $s$-channel gravitational production of dark matter occurs. We show that the abundance of dark matter (fermionic or scalar) depends primarily on the combination $T_{\rm max}^4/T_{\rm RH} M_P^3$. We find that a sufficient density of dark matter can be produced over a wide range of dark matter masses: from a GeV to a ZeV.
description: 6 pages, 4 figures; several improvements, version published in Physical Review D
MPEC 2024-T95 : 2024 TS1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TS1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Formation of Galactic Systems in Light of the Magnesium Abundance in Field Stars: The Thin Disk
Creators: name: Marsakov, V. A
name: Borkova, T. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the relations between the relative magnesium abundances in stars and their metallicities, Galactic orbital elements, and ages. The relative magnesium abundances in metal-poor ([Fe/H] < -0.4) thin-disk stars have been found to systematically decrease with increasing stellar orbital radii in such a way that magnesium over abundances ([Mg/Fe]>0.2 dex) are essentially observed only in the stars whose orbits lie almost entirely within the solar circle. At the same time, the range of metallicities in magnesium-poor stars is displaced from (-0.5
description: accepted 2006, Astronomy Letters, Vol. 32 No. 6, P.376-392, 14 pages, 10 figures
Gravity as a classical channel and its dissipative generalization
Creators: name: Di Bartolomeo, Giovanni
name: Carlesso, Matteo
name: Bassi, Angelo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent models formulated by Kafri, Taylor, and Milburn and by Tilloy and Diosi describe the gravitational interaction through a continuous measurement and feedback protocol. In such a way, although gravity is ultimately treated as classical, they can reconstruct the proper quantum gravitational interaction at the level of the master equation for the statistical operator. Following this procedure, the price to pay is the presence of decoherence effects leading to an asymptotic energy divergence. One does not expect the latter in isolated systems. Here, we propose a dissipative generalization of these models. We show that, in these generalizations, in the long time limit, the system thermalizes to an effective finite temperature.
Φιλοσοφικά ποιήματα του καβαφικού κανόνα
Creators: name: Πλιάτσκα, Ολγα Ευαγγέλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: subject: Καβάφης
subject: Φιλοσοφία
subject: Ποίηση
subject: Cavafy
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Poetry

description: Ο Καβάφης χώρισε τα ποιήματα του στα Ιστορικά, τα Ερωτικά και τα Φιλοσοφικά. Βέβαια, είναι γεγονός πως η κατάταξη των ποιημάτων του σε μία μόνο από τις παραπάνω περιοχές αποτελεί δύσκολο εγχείρημα, καθώς πολλά από τα έργα του περιέχουν γνωρίσματα και από τις τρεις κατηγορίες. Σκοπός της συγκεκριμένης διατριβής ήταν ο εντοπισμός και η μελέτη των φιλοσοφικών μόνο ποιημάτων του καβαφικού κανόνα. Επομένως, επιλέξαμε και αναλύσαμε είκοσι ποιήματα ως χαρακτηριστικά των φιλοσοφικών διαστάσεων της ποίησης του, δεδομένων και των ορίων έκτασης μιας μεταπτυχιακής διπλωματικής εργασίας. Έτσι, παρουσιάσαμε αναλυτικά τις προεκτάσεις των φιλοσοφικών ποιημάτων του, τα οποία συνδέσαμε αφενός με συγκεκριμένα φιλοσοφικά πρόσωπα, αφετέρου με αφηρημένα φιλοσοφικά προβλήματα. Ακόμη, ασχοληθήκαμε με τα μορφικά χαρακτηριστικά αλλά και με το λεξιλόγιο που χρησιμοποίησε στα έργα του. Στο σημείο αυτό, πρέπει να λεχθεί πως ο Καβάφης αποτέλεσε πρόδρομο του μοντερνισμού και γι’ αυτό μας απασχόλησε ιδιαίτερα ο πρωτοποριακός τρόπος γραφής του. Επιπλέον, αναφερθήκαμε αναλυτικά στις κριτικές που έχει δεχθεί ο ποιητής αλλά και στην επιρροή που έχει ασκήσει σε πολλούς ομότεχνους του. Τέλος, διαπιστώσαμε τη διαχρονικότητα των λογοτεχνημάτων του Καβάφη, καταλήγοντας στο συμπέρασμα πως τα έργα του αγγίζουν τις ψυχές των αναγνωστών μέχρι και σήμερα
description: Cavafy classified his work in three broad categories historical, erotical and philosophical poems. Despite the difficulty of assigning his poems exclusively in one of the above categories, never-the-less some of his work incorporate elements of the three categories. The purpose of this work is the identification and the analysis of poems which fall within the philosophical rule of his classification. Hence, and taking into account the scope and the boundaries of our postgraduate thesis, we identified and analyze twenty of his poems meeting the aforementioned terms of reference. Our analysis takes into account both the identification of his work with specific persons as well as with abstract philosophical problems. In addition, it is our believe that Cavafy might be considered as a precursor of modernism, as regards to the vocabulary he is using in his work, and hence, we have paid special attention in analyzing his innovative way of writing, specifically in reconciling morphological characteristics of his work with the vocabulary he is using. In addition, we referred to the influence his work has had with his peers and his critics. Finally, we verified the diachronicity of Cavafy’s work and we concluded that his work touches the souls of the readers of his work ever now-a-days
PQCD Calculation for $Λ_{b}\to Λγ$ in the Standard Model
Creators: name: He, Xiao-Gang
name: Li, Tong
name: Li, Xue-Qian
name: Wang, Yu-Ming
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the branching ratio of $Λ_b \to Λγ$ in the standard model using the PQCD method. The predicted branching ratio $B(Λ_b \to Λγ)$ is about $(4.3\sim 8.6)\times 10^{-8}$, with reasonable parameter ranges in the heavy baryon distribution amplitude. This branching ratio is much smaller than those obtained in other hadronic model calculations. Future experimental data can provide important information on applicability of the PQCD method to heavy baryon radiative decay.
description: 12 pages, 1 figure and 5 tables. Replaced by new version
Hamiltonian kinetic-Hall Magnetohydrodynamics with fluid and kinetic ions in the current and pressure coupling schemes
Creators: name: Kaltsas, D. A.
name: Throumoulopoulos, G. N.
name: Morrison, P. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present two generalized hybrid kinetic-Hall magnetohydrodynamics (MHD) models describing the interaction of a two-fluid bulk plasma, which consists of thermal ions and electrons, with energetic, suprathermal ion populations described by Vlasov dynamics. The dynamics of the thermal components are governed by standard fluid equations in the Hall MHD limit with the electron momentum equation providing an Ohm's law with Hall and electron pressure terms involving a gyrotropic electron pressure tensor. The coupling of the bulk, low-energy plasma with the energetic particle dynamics is accomplished through the current density (current coupling scheme; CCS) and the ion pressure tensor appearing in the momentum equation (pressure coupling scheme; PCS) in the first and the second model, respectively. The CCS is a generalization of two well-known models, because in the limit of vanishing energetic and thermal ion densities we recover the standard Hall MHD and the hybrid kinetic-ions/fluid-electron model, respectively. This provides us with the capability to study in a continuous manner the global impact of the energetic particles in a regime extending from vanishing to dominant energetic particle densities. The noncanonical Hamiltonian structures of the CCS and PCS, which can be exploited to study equilibrium and stability properties through the energy-Casimir variational principle, are identified. As a first application here, we derive a generalized Hall MHD Grad--Shafranov--Bernoulli system for translationally symmetric equilibria with anisotropic electron pressure and kinetic effects owing to the presence of energetic particles using the PCS.
Correlated Production of p and p^bar in Au+Au Collisions at sqrt(s_NN) = 200 GeV
Creators: name: PHENIX Collaboration
name: Adare, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Correlations between p and pbar's at transverse momenta typical of enhanced baryon production in Au+Au collisions are reported. The PHENIX experiment measures same and opposite sign baryon pairs in Au+Au collisions at sqrt(s_NN) = 200 GeV. Correlated production of p and p^bar with the trigger particle from the range 2.5 < p_T < 4.0 GeV/c and the associated particle with 1.8 < p_T < 2.5 GeV/c is observed to be nearly independent of the centrality of the collisions. Same sign pairs show no correlation at any centrality. The conditional yield of mesons triggered by baryons (and anti-baryons) and mesons in the same pT range rises with increasing centrality, except for the most central collisions, where baryons show a significantly smaller number of associated mesons. These data are consistent with a picture in which hard scattered partons produce correlated p and p^bar in the p_T region of the baryon excess.
description: 420 authors from 58 institutions, 21 pages,5 figures. Submitted to Physics Letters B. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
Multivariate analysis and Jacobi ensembles: largest eigenvalue, Tracy--Widom limits and rates of convergence
Creators: name: Johnstone, Iain M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62H10 (Primary) 62E20, 15A52 (Secondary)

description: Let $A$ and $B$ be independent, central Wishart matrices in $p$ variables with common covariance and having $m$ and $n$ degrees of freedom, respectively. The distribution of the largest eigenvalue of $(A+B)^{-1}B$ has numerous applications in multivariate statistics, but is difficult to calculate exactly. Suppose that $m$ and $n$ grow in proportion to $p$. We show that after centering and scaling, the distribution is approximated to second-order, $O(p^{-2/3})$, by the Tracy--Widom law. The results are obtained for both complex and then real-valued data by using methods of random matrix theory to study the largest eigenvalue of the Jacobi unitary and orthogonal ensembles. Asymptotic approximations of Jacobi polynomials near the largest zero play a central role.
description: Published in at http://dx.doi.org/10.1214/08-AOS605 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Η πρόσβαση στην Τριτοβάθμια Εκπαίδευση στην Ελλάδα (1964-1980): από το «Ακαδημαϊκό Απολυτήριο» στις Πανελλήνιες Εξετάσεις
Creators: name: Θεοδωρίδου, Ευφημία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: εκπαιδευτική πολιτική
εκπαιδευτική μεταρρύθμιση
εξεταστικό σύστημα
educational policy
educational reform
exams

description: Οι εκπαιδευτικές μεταρρυθμίσεις του 1964 και 1976 υπήρξαν οι πρώτες προσπάθειες της φιλελεύθερης αστικής τάξης, για τον εκδημοκρατισμό και εκσυγχρονισμό του ελληνικού σχολείου. Η στροφή του σχολείου στις θετικές επιστήμες, η προσαρμογή του στις οικονομικές ανάγκες της κοινωνίας με τη δημιουργία τεχνικού κλάδου, αποτέλεσαν τα γνωρίσματα του νέου σχολείου. Ο τρόπος πρόσβασης στην τριτοβάθμια εκπαίδευση συνδέθηκε με την υποχρεωτική φοίτηση στο Γυμνάσιο και με τη δημιουργία τεχνικού σχολείου μέσης εκπαίδευσης. Ενώ η κατάργηση των εξετάσεων στο Γυμνάσιο επιτρέπει τη φοίτηση σε όλα τα παιδιά, η ύπαρξη εισαγωγικών εξετάσεων για το Λύκειο, τους οδηγεί σε τεχνικά σχολεία. Καθώς μειώνεται ο όγκος των μαθητών στο Λύκειο, αυξάνονται οι πιθανότητες για εισαγωγή στις ανώτατες σχολές για όσους ανήκουν σε υψηλά κοινωνικά στρώματα. Αντιδράσεις υπήρξαν, αλλά αφορούσαν στον τρόπο εφαρμογής των μέτρων και όχι στους σκοπούς τους. Οι διαφωνίες προήλθαν από τον πνευματικό και πολιτικό κόσμο, χωρίς όμως να περιέχουν αντιπροτάσεις. Η ύπαρξη εξετάσεων και ο κλειστός αριθμός εισακτέων ήταν μέτρα αποδεκτά από όλες τις κομματικές παρατάξεις
description: The educational reforms of 1964 and 1976 were the first efforts of the liberal bourgeoisie, for democratisation and modernisation of the Greek school. The school preference to science school, the adjustment to the economic needs of society by creating technical specializations, were traits of the new school. The way of access to higher education was associated with mandatory attendance in high school and with the creation of technical schools for secondary education. While the abolition of tests in middle school allows attendance in all children, the existence of examinations for high school, leads them in technical schools. As, the number of students in high school is reduced, the chances for admission to the universities are increased for those who belong to high society. There have been reactions, but they were focused on how to implement the measures and not to their aims. The disputes came from the cultural and political world, but they did not contain any counter-proposals. The existence of trials and the closed number of inductees were accepted measures by all political parties
The Galactic Center as a point source of neutrons at EeV energies
Creators: name: Medina-Tanco, G.
name: Krone-Martins, A. G. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The central region of our Galaxy is a very peculiar environment, containing magnetic fields in excess of 100 mG and gas densities reaching ~ 10^4cm^-3. This region was observed as a strong source of GeV and TeVs gammas, what suggests that a mechanism of proton-neutron conversion could be taking place therein. We propose that the Galactic Center must also be a source of EeV neutrons due to the conversion of ultra high energy cosmic ray protons into neutrons via p-p interactions inside this region. This scenario should be falsifiable by the Pierre Auger Observatory after a few years of full exposure.
Πολιτική αγωγή – Αλληλεπίδραση ποινικής και αστικής δίκης
Creators: name: Ζδράγκας, Νικόλαος Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: πολιτική αγωγή
αλληλεπίδραση
δεδικασμένο
civil action
interaction
precedent

description: Σκοπός της μεταπτυχιακής διατριβής ήταν η μελέτη της νομικής φύσης της πολιτικής αγωγής στην ποινική δίκη και η ανάλυση των ποικίλων ζητημάτων που δημιουργούνται από τον διφυή χαρακτήρα της (αστικό – ποινικό). Ακολούθως, αναπτύξαμε τα κριτήρια της ενεργητικής νομιμοποίησης του πολιτικώς ενάγοντος με έμφαση στην ύπαρξη άμεσης ζημίας στο πρόσωπό του. Στη συνέχεια, αναφέραμε τους λόγους που καταλύουν το δικαίωμα παράστασης πολιτικής αγωγής, όπως η εξόφληση της αστικής απαίτησης και η παραγραφή της αστικής απαίτησης, σκιαγραφώντας τις περιπτώσεις παράστασης πολιτικής αγωγής μόνο για την υποστήριξη της κατηγορίας. Και τέλος, ασχοληθήκαμε με τα ζητήματα εκκρεμοδικίας και δεδικασμένου που δημιουργούνται από την παράλληλη εισαγωγή αξιώσεων τόσο στην ποινική, όσο και στην πολιτική δίκη και τις λύσεις που προσπαθούν να δώσουν θεωρία και νομολογία σχετικά με την εφαρμογή των άρθρων 65, 66, 67 ΚΠΔ.
description: The purpose of the postgraduate dissertation was to study the legal nature of civil action in criminal proceedings and to analyze the various issues arising from its bipolar nature (civil - criminal). Next, we developed the criteria for the active legitimation of the civil party, with emphasis on the existence of direct damage to him. We then listed the reasons for abolishing the right of representation of the civil party, such as the payment of the civil claim and the prescription of the civil claim, outlining cases of political action only for supporting accusation. Finally, we have dealt with the issues of lis pendens and precedent created by the parallel introduction of claims both in criminal and political trial and the solutions that attempt to give theory and case law on the application of Articles 65, 66 and 67 of the Criminal Procedure Code.
The Kinetic Sunyaev-Zel'dovich Effect from Radiative Transfer Simulations of Patchy Reionization
Creators: name: Iliev, Ilian T.
name: Pen, Ue-Li
name: Bond, J. Richard
name: Mellema, Garrelt
name: Shapiro, Paul R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first calculation of the kinetic Sunyaev-Zel'dovich (kSZ) effect due to the inhomogeneous reionization of the universe based on detailed large-scale radiative transfer simulations of reionization. The resulting sky power spectra peak at l=2000-8000 with maximum values of l^2C_l~1\times10^{-12}. The peak scale is determined by the typical size of the ionized regions and roughly corresponds to the ionized bubble sizes observed in our simulations, ~5-20 Mpc. The kSZ anisotropy signal from reionization dominates the primary CMB signal above l=3000. This predicted kSZ signal at arcminute scales is sufficiently strong to be detectable by upcoming experiments, like the Atacama Cosmology Telescope and South Pole Telescope which are expected to have ~1' resolution and ~muK sensitivity. The extended and patchy nature of the reionization process results in a boost of the peak signal in power by approximately one order of magnitude compared to a uniform reionization scenario, while roughly tripling the signal compared with that based upon the assumption of gradual but spatially uniform reionization. At large scales the patchy kSZ signal depends largely on the ionizing source efficiencies and the large-scale velocity fields: sources which produce photons more efficiently yield correspondingly higher signals. The introduction of sub-grid gas clumping in the radiative transfer simulations produces significantly more power at small scales, and more non-Gaussian features, but has little effect at large scales. The patchy nature of the reionization process roughly doubles the total observed kSZ signal for l~3000-10^4 compared to non-patchy scenarios with the same total electron-scattering optical depth.
description: 14 pages, 13 figures (some in color), submitted to ApJ
Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
Creators: name: Matsuda, Y.
name: Shimahara, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is a novel superconducting state in a strong magnetic field characterized by the formation of Cooper pairs with nonzero total momentum (k \uparrow, -k+q \downarrow), instead of the ordinary BCS pairs (k \uparrow, -k \downarrow). A fascinating aspect of the FFLO state is that it exhibits inhomogeneous superconducting phases with a spatially oscillating order parameter and spin polarization. The FFLO state has been of interest in various research fields, not only in superconductors in solid state physics, but also in neutral Fermion superfluid of ultracold atomic gases and in color superconductivity in high energy physics. In spite of extensive studies of various superconductors, there has been no undisputed experimental verification of the FFLO state, mainly because of the very stringent conditions required of the superconducting materials. Among several classes of materials, certain heavy fermion and organic superconductors are believed to provide conditions that are favorable to the formation of the FFLO state. This review presents recent experimental and theoretical developments of the FFLO state mainly in heavy fermion superconductors. In particular we address the recently discovered quasi-two-dimensional superconductor CeCoIn_5, which is a strong candidate for the formation of the FFLO state.
description: 17 pages, 12 figures with jpsf2.cls, to be published in J. Phys. Soc. Jpn. (Special Topics - Frontiers of Novel Superconductivity in Heavy Fermion Compounds)
Deeply Virtual Compton Scattering on a Photon and Generalized Parton Distributions in the Photon
Creators: name: Friot, S.
name: Pire, B.
name: Szymanowski, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider deeply virtual Compton scattering on a photon target, in the generalized Bjorken limit, at the Born order and in the leading logarithmic approximation. We interpret the result as a factorized amplitude of a hard process described by handbag diagrams and anomalous generalized parton distributions in the photon. This anomalous part, with its characteristic ln Q2 dependence, is present both in the DGLAP and in the ERBL regions. As a consequence, these generalized parton distributions of the photon obey DGLAP-ERBL evolution equations with an inhomogeneous term.
description: 9 pages 3 figures. Version 2 to be published in Physics Letters B : more explanation and a few references added in the conclusion
Broad-line and Multi-wave Band Emission from Blazars
Creators: name: Yi, T. F.
name: Xie, G. Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the correlations of the flux of the broad-line emission ($F_{BLR}$) with the X-ray emission flux, optical emission flux at 5500 Åand radio emission flux at 5 GHz, respectively, for a large sample of 50 Blazars (39 flat-spectrum radio quasars (FSRQs) and 11 BL Lac objects). Our main results are as follows. There are very strong correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ in both states for 39 FSRQs and the slopes of the linear regression equations are almost equal to 1. There are weak correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ for 11 BL Lac objects in both states, and the slopes of the linear regression equations are close to 1. There are significant correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ for 50 blazars in both states, the slopes of both the linear regression equations are also close to 1. These results support a close link between relativistic jets and accretion on to the central Kerr black hole. On the other hand, we find that BL Lac objects have low accretion efficiency $η$, whereas FSRQs have high accretion efficiency $η$. The unified model of FSRQs and BL Lac objects is also discussed.
description: 15 pages, 8 figures
Additional file 1 of Respiratory infections in X-linked hyper-IgM syndrome with CD40LG mutation: a case series of seven children in China
Creators: name: Fan, Huifeng
name: Huang, Li
name: Yang, Diyuan
name: Zhang, Changhao
name: Zeng, Qiang
name: Yin, Genquan
name: Lu, Gen
name: Shen, Kunling
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: Table S1. Blood routine test findings of the children with XHIGM.
Asymptotic Bethe Ansatz S-matrix and Landau-Lifshitz type effective 2-d actions
Creators: name: Roiban, R.
name: Tirziu, A.
name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the desire to relate Bethe ansatz equations for anomalous dimensions found on the gauge theory side of the AdS/CFT correspondence to superstring theory on AdS_5 x S5 we explore a connection between the asymptotic S-matrix that enters the Bethe ansatz and an effective two-dimensional quantum field theory. The latter generalizes the standard ``non-relativistic'' Landau-Lifshitz (LL) model describing low-energy modes of ferromagnetic Heisenberg spin chain and should be related to a limit of superstring effective action. We find the exact form of the quartic interaction terms in the generalized LL type action whose quantum S-matrix matches the low-energy limit of the asymptotic S-matrix of the spin chain of Beisert, Dippel and Staudacher (BDS). This generalises to all orders in the `t Hooft coupling an earlier computation of Klose and Zarembo of the S-matrix of the standard LL model. We also consider a generalization to the case when the spin chain S-matrix contains an extra ``string'' phase and determine the exact form of the LL 4-vertex corresponding to the low-energy limit of the ansatz of Arutyunov, Frolov and Staudacher (AFS). We explain the relation between the resulting ``non-relativistic'' non-local action and the second-derivative string sigma model. We comment on modifications introduced by strong-coupling corrections to the AFS phase. We mostly discuss the SU(2) sector but also present generalizations to the SL(2) and SU(1|1) sectors, confirming universality of the dressing phase contribution by matching the low-energy limit of the AFS-type spin chain S-matrix with tree-level string-theory S-matrix.
description: 52 pages, 4 figures, Imperial-TP-AT-6-2; v2: new sections 7.3 and 7.4 computing string tree-level S-matrix in SL(2) and SU(1|1) sectors, references added
Fast Variability of Nonthermal X-Ray Emission in Cassiopeia A: Probing Electron Acceleration in Reverse-Shocked Ejecta
Creators: name: Uchiyama, Yasunobu
name: Aharonian, Felix
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent discovery of the year-scale variability in the synchrotron X-ray emission of the supernova remnant (SNR) RX J1713.7-3946 has initiated our study of multi-epoch X-ray images and spectra of the young SNR Cassiopeia A based on the Chandra archive data taken in 2000, 2002, and 2004. We have found year-scale time variations in the X-ray intensity for a number of X-ray filaments or knots associated with the reverse-shocked regions. The X-ray spectra of the variable filaments are characterized by a featureless continuum, and described by a power law with a photon index within 1.9-2.3. The upper limits on the iron K-line equivalent width are 110 eV, which favors a synchrotron origin of the X-ray emission. The characteristic variability timescale of 4 yr can be explained by the effects of fast synchrotron cooling and diffusive shock acceleration with a plausible magnetic field of 1 mG. The X-ray variability provides a new effective way of studying particle acceleration at supernova shocks.
description: 4 pages, 4 figures, accepted for publication in ApJ Letter
"Swiss-Cheese" Inhomogeneous Cosmology & the Dark Energy Problem
Creators: name: Biswas, Tirthabir
name: Notari, Alessio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study an exact swiss-cheese model of the Universe, where inhomogeneous LTB patches are embedded in a flat FLRW background, in order to see how observations of distant sources are affected. We find negligible integrated effect, suppressed by (L/R_{H})^3 (where L is the size of one patch, and R_{H} is the Hubble radius), both perturbatively and non-perturbatively. We disentangle this effect from the Doppler term (which is much larger and has been used recently \cite{BMN} to try to fit the SN curve without dark energy) by making contact with cosmological perturbation theory.
description: 35 pages, 6 figures
ASSESSING PRE-EXPOSURE PROPHYLAXIS-BASED HEALTH PROMOTION FOR ABORIGINAL AND TORRES STRAIT ISLANDER GAY AND BISEXUAL MEN
Creators: name: Hope, A
name: Haire, BG
Publisher: name: UNSW Sydney
Year: 2017

description: “I FEEL THAT I’M FINALLY FULLY ENJOYING SEX FOR THE FIRST TIME IN MY LIFE”: THE IMPACT OF PREP ON SEXUAL CULTURES FROM THE SIN-PREP STUDY Haire B1,2 ,Maher L1 , Vaccher S1 , Callander D1 , Cook T3 , Murphy D4 , Kaldor J1 , Zablotska-Manos I1 1The Kirby Institute 2Australian Federation of AIDS Organisations 3 ACON 4University of Sydney Background: More than 6,100 gay and bisexual cisgender and transgender men (GBM) are accessing HIV pre-exposure prophylaxis (PrEP) in NSW through the EPIC-NSW study. Sin-PrEP explores the culture of PrEP adoption and changing meanings of ‘safe sex’. Methods: Between 2015 and 2017 in-depth interviews were conducted with 25 PrEP users, 7 sexually active PrEP non-users and 7 healthcare providers. Six participants were re-interviewed 9-18 months after their first interview. Three focus groups were conducted with professionals in Sydney and Melbourne. Data were analysed thematically. Results: Themes included risk-reduction, access, anxiety, sexual capital, stigma, sexual citizenship, reciprocity, responsibility, risk, negotiation, and changing practices over time. Of the 25 PrEP users, four had switched from personal importation to the EPIC-NSW trial, and three had ceased use. Participants reported a range of risk reduction practices. Most users reported reducing their condom use following PrEP uptake. Almost all men had accessed PEP prior to PrEP, including two using PEP-as-PrEP. Healthcare providers and HIV negative non-PrEP users expressed concerns about potential increases in STIs. Positive social implications of PrEP included relief from HIV anxiety, easier sexual negotiation between serodiscordant partners, and a burgeoning of informal peer-based sexual health support in response to increasing complexity of HIV prevention options. Apprehension that PrEP was becoming a new norm that reduced the sexual capital of non-users was a negative implication. Conclusion: Sex cultures in GBM are changing. Some aspects of PrEP adoption reported in SIN-PrEP indicate a developing culture of care and mutual responsibility. There is however also evidence of normative pressure to adopt PrEP over condom use to maintain sexual capital. Potential increases in STIs are also of concern to some community members. Health promotion specialists need to engage with both the negative and positive impacts of PrEP to support an inclusive culture that minimises HIV risk. Disclosure of Interest Statement: Bridget Haire receives funding support from the NHMRC. This study has received in-kind support from ACON.
description: Australasian HIV AIDS Conference; Canberra; 2017-11-06 - 2017-11-09
Resolving the unresolved cosmic X-ray background in the Chandra Deep Fields
Creators: name: Hickox, Ryan C.
name: Markevitch, Maxim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a measurement of the surface brightness of the cosmic X-ray background (CXB) in the Chandra Deep Fields, after excluding all detected X-ray, optical and infrared sources. The work is motivated by a recent X-ray stacking analysis by Worsley and collaborators, which showed that galaxies detected by HST but not by Chandra may account for most of the unresolved CXB at E>1 keV. We find that after excluding HST and Spitzer IRAC sources, some CXB still remains, but it is marginally significant: (3.4+/-1.4)x10^-13 ergs cm^-2 s^-1 deg^2 in the 1-2 keV band and (4+/-9)x10^-13 ergs cm^-2 s^-1 deg^2 in the 2-5 keV band, or 7%+/-3% and 4%+/-9% of the total CXB, respectively. Of the 1-2 keV signal resolved by the HST sources, 34%+/-2% comes from objects with optical colors typical of ``normal'' galaxies (which make up 25% of the HST sources), while the remaining flux comes from objects with colors of starburst and irregular galaxies. In the 0.65-1 keV band (just above the bright Galactic O VII line) the remaining diffuse intensity is (1.0+/-0.2)x10^-12 ergs cm^-2 s^-1 deg^2. This flux includes emission from the Galaxy as well as from the hypothetical warm-hot intergalactic medium (WHIM), and provides a conservative upper limit on the WHIM signal that comes interestingly close to theoretical predictions.
description: 5 emulateapj pages, 4 figures, 1 table, accepted to ApJL (mostly minor improvements in response to referee's comments, in particular further treatment of uncertainties on resolved fluxes)