cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the genericity of spacetime singularities
Creators: name: Joshi, Pankaj S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider here the genericity aspects of spacetime singularities that occur in cosmology and in gravitational collapse. The singularity theorems (that predict the occurrence of singularities in general relativity) allow the singularities of gravitational collapse to be either visible to external observers or covered by an event horizon of gravity. It is shown that the visible singularities that develop as final states of spherical collapse are generic. Some consequences of this fact are discussed.
description: 19 pages, To be published in the Raychaudhuri Volume, eds. Naresh Dadhich, Pankaj Joshi and Probir Roy
Measuring the spins of heavy binary black holes
Creators: name: Biscoveanu, Sylvia
name: Isi, Maximiliano
name: Varma, Vijay
name: Vitale, Salvatore
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: An accurate and precise measurement of the spins of individual merging black holes is required to understand their origin. While previous studies have indicated that most of the spin information comes from the inspiral part of the signal, the informative spin measurement of the heavy binary black hole system GW190521 suggests that the merger and ringdown can contribute significantly to the spin constraints for such massive systems. We perform a systematic study into the measurability of the spin parameters of individual heavy binary black hole mergers using a numerical relativity surrogate waveform model including the effects of both spin-induced precession and higher-order modes. We find that the spin measurements are driven by the merger and ringdown parts of the signal for GW190521-like systems, but the uncertainty in the measurement increases with the total mass of the system. We are able to place meaningful constraints on the spin parameters even for systems observed at moderate signal-to-noise ratios, but the measurability depends on the exact six-dimensional spin configuration of the system. Finally, we find that the azimuthal angle between the in-plane projections of the component spin vectors at a given reference frequency cannot be well-measured for most of our simulated configurations even for signals observed with high signal-to-noise ratios.
description: Version accepted in PRD
Engineering exotic second-order topological semimetals by periodic driving
Creators: name: Wang, Bao-Qin
name: Wu, Hong
name: An, Jun-Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Second-order topological semimetals (SOTSMs) are featured with hinge Fermi arcs. How to generate them in different systems has attracted much attention. We propose a scheme to create exotic SOTSMs by periodic driving. Novel Dirac SOTSMs, with a widely tunable number of nodes and hinge Fermi arcs, the adjacent nodes having the same chirality, and the coexisting nodal points and loops, are generated at ease by the periodic driving. When the time-reversal symmetry is broken, our scheme permits us to realize hybrid-order Weyl semimetals with the coexisting hinge and surface Fermi arcs. Our Weyl semimetals possess a rich hybrid of 2D sliced zero- and $π/T$-mode topological phases, which may be any combination of the normal insulator, Chern insulator, and second-order topological insulator. Enriching the family of topological semimetals, our scheme supplies a convenient way to artificially synthesize exotic topological phases by periodic driving.
Η γυμνογραφία στην Ελληνική Ζωγραφική 1910-1970
Creators: name: Αρβανιτίδου, Άννα-Μαρία Γρηγορίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Γυμνογραφία
Ζωγραφική
Ελληνική Τέχνη
Gymnography
Painting
Greek Art

description: H παρούσα διπλωματική εργασία παρουσιάζει μια σειρά ζωγραφικών έργων με θέμα το γυμνό, ανδρικό και γυναικείο, την περίοδο 1910-1970. Επιλέχθηκαν συγκεκριμένοι καλλιτέχνες και έργα τους στην προσπάθεια να γίνει μια όσο πιο γίνεται πιο ολοκληρωμένη μελέτη αντιπροσωπευτική των καλλιτεχνών και της εποχής τους. Η προσέγγιση των έργων έγινε τεχνοτροπικά κυρίως και μέσα από το πρίσμα της ιδιοσυγκρασίας του καλλιτέχνης ώστε να παρουσιαστεί όσο γίνεται καλύτερα η προσωπικότητά του και οι επιρροές που δέχτηκε. Αναλύθηκαν οι γυμνογραφίες των Γ. Σικελιώτη, Γ. Μπουζιάνη, Γ. Γουναρόπουλο, Γ. Μόραλη, Γ. Τσαρούχη, Ν. Νικολάου, Δ. Διαμαντόπουλο, Α. Αλεξανδράκη, Π. Μοσχίδη, Δ. Γαλάνη, Β. Τσούχλος, Γ. Μαυροϊδή και Β. Σπεράτζα. Ακόμη γίνεται λόγος μεταξύ αισθητικής και αισθησιακής ζωγραφικής, του ρόλου του ενδύματος στη γυμνογραφία, των επιρροών των καλλιτεχνών μετά τον Β’ Παγκόσμιο Πόλεμο, τη σεξουαλική επανάσταση, τη συντηρητική Ανατολή και την προοδευτική Δύση καθώς και του ερωτισμού που διέπει την εποχή ή το προσωπικό γούστο του καλλιτέχνη.
description: This dissertation presents a series of nude paintings, both male and female, during the decades of 1910-1970. Selected artists and works were chosen in an attempt to conduct a thorough study, characteristic of the artists and their era. The artwork was mainly approached stylistically through the prism of the artists’ idiosyncrasy, in order to display in the most efficient way their personality and their influences. The nude paintings of G. Moralis, G. Tsarouchis, N. Nikolaou, D. Diamantopoulos, A. Alexandraki, P. Moschidi, D. Galani, V. Tsouchlos, G. Mavroidis and V. Sparatza were analyzed and researched. In addition, the relation between aesthetic and sensual painting was studied, as well as the role of clothing in nude paintings, the influences of artists after the Second World War, the sexual revolution, the conservative East and the progressive West, the eroticism that governs the era or the personal expression of the artist.
Bertrand spacetimes as Kepler/oscillator potentials
Creators: name: Ballesteros, Angel
name: Enciso, Alberto
name: Herranz, Francisco J.
name: Ragnisco, Orlando
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Perlick's classification of (3+1)-dimensional spherically symmetric and static spacetimes (\cal M,η=-1/V dt^2+g) for which the classical Bertrand theorem holds [Perlick V Class. Quantum Grav. 9 (1992) 1009] is revisited. For any Bertrand spacetime (\cal M,η) the term V(r) is proven to be either the intrinsic Kepler-Coulomb or the harmonic oscillator potential on its associated Riemannian 3-manifold (M,g). Among the latter 3-spaces (M,g) we explicitly identify the three classical Riemannian spaces of constant curvature, a generalization of a Darboux space and the Iwai-Katayama spaces generalizing the MIC-Kepler and Taub-NUT problems. The key dynamical role played by the Kepler and oscillator potentials in Euclidean space is thus extended to a wide class of 3-dimensional curved spaces.
description: 17 pages. Comments on the differences between our results/approach and those given by Perlick have been added together with three new references. To appear in Class. Quantum Grav
Διαχείριση του ¨άσφυγμου χεριού¨ σε παιδιά με υπερκονδύλιο κάταγμα βραχιονίου. Ημέτερη εμπειρία και ανάλυση βιβλιογραφίας
Creators: name: Δελνιώτης, Ιωάννης Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Υπερκονδύλιο κάταγμα βραχιονίου
Αγγειακές επιπλοκές
Άσφυγμο χέρι
Supracondylar humeral fracture
Vascular injuries
Pulseless hand

description: Η εργασία αυτή ασχολείται με το υπερκονδύλιο κάταγμα βραχιονίου στην παιδική ηλικία και ειδικότερα τις πιθανές αγγειακές επιπλοκές που μπορούν να συνοδεύουν ένα τέτοιο κάταγμα. Το υπερκονδύλιο κάταγμα του βραχιονίου στα παιδιά (1-16 ετών) αποτελεί το συχνότερο, με διαφορά, κάταγμα στην περιοχή του αγκώνα σε αυτήν την ηλικιακή ομάδα. Ιδιαίτερα τα παιδιά που ασχολούνται με αθλητικές δραστηριότητες παρουσιάζουν ακόμη πιο αυξημένη συχνότητα των καταγμάτων αυτών, καθώς ο συνηθέστερος μηχανισμός κάκωσης είναι η πτώση από ύψος, στον ευρισκόμενο σε έκταση αγκώνα. Μία επιπλοκή που εμφανίζεται σε ποσοστό 8-12% και αποτελεί ακόμη και σήμερα πεδίο αντιπαραθέσεων ως προς τη στρατηγική αντιμετώπισης είναι η απουσία ψηλαφητού κερκιδικού ή/και ωλένιου σφυγμού σε ένα υπερκονδύλιο κάταγμα βραχιονίου σε παιδιά. Ενώ η βιβλιογραφία είναι πιο ξεκάθαρη ως προς την αντιμετώπιση ενός άσφυγμου χεριού που συνοδεύεται με ψυχρότητα και ωχρότητα του σκέλους και συστήνει άμεση χειρουργική διερεύνηση της βραχιονίου αρτηρίας, διχογνωμία υπάρχει ως προς τη στρατηγική αντιμετώπισης ενός άσφυγμου χεριού που συνοδεύεται όμως από θερμότητα του σκέλους και ροζ-ροδαλό χρώμα.
description: This study deals with the supracondylar humerus fracture in children and especially the ‘pulseless supracondylar humerus fracture’. The supracondylar humerus fracture in children (1-16 years) is by far, the most common fracture in the elbow region. Kids who participate in sport activities have a higher possibility to suffer from a supracondylar humerus fracture, as the most common mechanism of injury is a fall on an outstreched hand with the elbow in full extension. Vascular complications can be present in up to 8-12% of the patients. Pulseless hand following supracondylar humerus fracture is well know in the bibliography. While are more clear in the management of a ‘pale pulseless hand’ controversy still exists about the ‘pink pulseless hand’.
Elliptic flow and system size dependence of transition energies at intermediate energies
Creators: name: Zhang, Yingxun
name: Li, Zhuxia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The elliptic flow for $Z\le2$ particles in heavy ion collisions at energies from several tens to several hundreds MeV per nucleon is investigated by means of transport model,i.e. a new version of the Improved Quantum Molecular Dynamics model (ImQMD05). In this model, a complete Skyrme potential energy density functional is employed. The influence of different effective interactions and medium corrections of nucleon-nucleon cross sections on the elliptic flow are studied. Our results show that a soft nuclear equation of state and incident energy dependent in-medium nucleon-nucleon cross sections are required for describing the excitation function of the elliptic flow at intermediate energies. The size dependence of transition energies for the elliptic flow at intermediate energies is also studied. The system size dependence of transition energies fits a power of system size with a exponent of 0.223.
description: 12 pages, 4 figures, to be published in Phys.Rev.C
Additional file 2 of Age at menarche, eating disorders, and their relationships with some parameters in female adolescents in Iran
Creators: name: Daeie-Farshbaf, Lida
name: Ebrahimi-Mameghani, Mehrangiz
name: Sarbakhsh, Parvin
name: Roshanravan, Neda
name: Tarighat-Esfanjani, Ali
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Figure S1. (A) Age at menarche (AM) depending on body mass index (BMI). AM had an inverse significant relationship with BMI, as menstruation was occurred earlier in girls with higher BMI. (B) Age at menarche (AM) depending on socio-economic status (SES). AM had a statistically significant positive correlation with SES, as with increment in the level of SES, AM increased.
ผลของแนวทางปฏิบัติทางคลีนิคในการจัดการความเจ็บปวดหลังผ่าตัดในผู้สูงอายุที่มีภาวะข้อสะโพกหัก
Creators: name: พิชญา ศรีเกลื่อนกิจ
name: แพรวพรรณ์ พิเศษ
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: แนวทางปฏิบัติทางคลีนิค, การจัดการความเจ็บปวดหลังผ่าตัด, ข้อสะโพกหักในผู้สูงอายุ, Clinical practice guideline, Post operative pain management, Elderly with hip fracture

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
แนวทางการส่งเสริมการท่องเที่ยวเชิงวัฒนธรรมแบบมีส่วนร่วมของชุมชนตลาดบางหลวง อำเภอบางเลน จังหวัดนครปฐม
Creators: name: ชายชาญ ปฐมกาญจนา
name: นรินทร์ สังข์รักษา
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: การท่องเที่ยวเชิงวัฒนธรรม, ตลาดบางหลวง, Cultural tourism, Community Bangluang

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Using Transformational Leadership to Predict Employees' Turnover Intention: The Mediating Effects of Trust and Employees' Job Performance in Bangkok, Thailand
Creators: name: Saiful, Islam Khan
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: Transformational Leadership, Trust, Job performance, Turnover intention

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Additional file 1 of What are the key themes associated with the positive learning experience in MOOCs? An empirical investigation of learners’ ratings and reviews
Creators: name: Deng, Ruiqi
name: Benckendorff, Pierre
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Review data.
ESC observations of SN 2005cf: II. Optical Spectroscopy and the high velocity features
Creators: name: Garavini, G.
name: Nobili, S.
name: Taubenberger, S.
name: Pastorello, A.
name: Elias--Rosa, N.
name: Stanishev, V.
name: Blanc, G.
name: Benetti, S.
name: Goobar, A.
name: Mazzali, P. A.
name: Sanchez, S. F.
name: Salvo, M.
name: Schmidt, B. P.
name: Hillebrandt, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ESC-RTN optical spectroscopy data-set for SN 2005cf is presented and analyzed. The observations range from -11.6 and +77.3 days with respect to B-band maximum light. The evolution of the spectral energy distribution of SN 2005cf is characterized by the presence of high velocity SiII and CaII features. SYNOW synthetic spectra are used to investigate the ejecta geometry of silicon. Based on the synthetic spectra the SiII high velocity feature appears detached at 19500 km/s. We also securely establish the presence of such feature in SN 1990N, SN 1994D, SN 2002er and SN 2003du. On a morphological study both the CaII IR Triplet and H&K absorption lines of SN 2005cf show high velocity features centered around 24000 km/s. When compared with other Type Ia SNe based on the scheme presented in Benetti et al. 2005 SN 2005cf definitely belongs to the LVG group.
description: A&A accepted for publication
การศึกษาปัจจัยที่มีผลต่อความพึงพอใจ ระดับความพึงพอใจ และความผูกพันของบุคลากร สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Creators: name: อมรพรรณ พัทโร
name: จอมใจ เพชรกล้า
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: ปัจจัยสร้างบรรยากาศในการทำงาน ปัจจัยจูงใจ, ความพึงพอใจ, ความผูกพัน, Hygiene Factor, Motivation Factor, Staff Satisfaction, Staff Engagement

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Chameleon dark energy can resolve the Hubble tension
Creators: name: Cai, Rong-Gen
name: Guo, Zong-Kuan
name: Li, Li
name: Wang, Shao-Jiang
name: Yu, Wang-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Values of the Hubble constant between the direct measurements from various independent local observations and that inferred from the cosmic microwave background with the $Λ$-cold-dark-matter model are in tension with persistent significance. We propose a late-time inhomogeneous resolution suggesting that a chameleon field coupled to a local overdensity of matter could be trapped at a higher potential energy density as an effective cosmological constant driving the local expansion rate faster than that of the background with lower matter density. We illustrate this mechanism in a toy model in which a region with only $20\%$ overdensity of matter is sufficient to resolve the Hubble tension, and the Hubble constant measured by the local distance ladders could be accommodated by the chameleon coupled to the observed overdensities from the large-scale structure surveys.
description: v4, to match the published version in Physical Review D as a Letter
Οι Marx και Engels για το ανατολικό ζήτημα και για την αποικιοκρατία στην Ασία (παρουσίαση και ανάλυση των σχετικών κείμενων τους)
Creators: name: Καραμούζης, Νικόλαος Γρηγορίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ανατολικό Ζήτημα
Βαλκανικός Εθνικισμός
Παναγιώτης Κονδύλης
Marx
Engels
Absolutism

description: Σκοπός της παρούσας διπλωματικής είναι η παρουσίαση και ανάλυση των έργων του Μαρξ και του Ένγκελς για το Ανατολικό Ζήτημα, όπως μεταφράστηκαν και σχολιάστηκαν από τον Π. Κονδύλη. Η προσέγγιση εκκινεί από την συνολική θεώρηση των δύο θεωρητικών για την ιστορική πορεία του σχηματισμού της αστικής κοινωνίας στην Δύση σε αντίθεση με τον αναχρονισμό των ανατολικών δεσποτικών καθεστώτων. Ακολούθως αναλύεται η θέση των Μεγάλων Δυνάμεων γύρω από το Ανατολικό Ζήτημα, όπως έγινε αντιληπτή από τον Μαρξ και τον Ένγκελς, με κεντρικό άξονα την θέση του απολυταρχικού Ρωσικού καθεστώτος στην λύση του Ανατολικού Ζητήματος και την σημασία του για την επιτυχία του ταξικού μετασχηματισμού στις Δυτικές κοινωνίες. Τέλος εξετάζεται ο ρόλος των βαλκανικών λαών, συμπεριλαμβανομένου του ελληνικού, στην λύση του Ανατολικού Ζητήματος καθώς και η σχέση πολέμου, επανάστασης και οικονομίας στην σκέψη των Μαρξ και Ένγκελς.
description: The aim of the current thesis is the presentation and analysis of the works of Marx and Engels on the Eastern Question, as they have been translated and commented upon by P. Kondylis. The approach begins from the holistic view of the two theorists on the historical course of the formation of civil society in the West in contrast to the backwardness of the eastern despotic regimes. In addition the standing of the Great Powers on the Eastern Question is analyzed, as it has been concepted by Marx and Engels, with central axis the significance of the Russian totalitarian regime in the solution of the Eastern Question and its significance for the success of the class transformation in Western societies. Finally the role of the people of the Balkans, including the Greek people, is being examined in the solution of the Eastern Question as well as the connection between war, revolution kai economics in the thought of Marx and Engels.
Nondiffractive sonic crystals
Creators: name: Perez-Arjona, Isabel
name: Sanchez-Morcillo, Victor J.
name: Redondo, Javier
name: Espinosa, Victor
name: Staliunas, Kestutis
Publisher: name: arXiv
Year: 2006
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We predict theoretically the nondiffractive propagation of sonic waves in periodic acoustic media (sonic crystals), by expansion into a set of plane waves (Bloch mode expansion), and by finite difference time domain calculations of finite beams. We also give analytical evaluations of the parameters for nondiffractive propagation, as well as the minimum size of the nondiffractively propagating acoustic beams.
description: 7 figures, submitted to J. Acoust. Soc. Am
Autophagosome protects proximal tubular cells from aldosterone-induced senescence through improving oxidative stress
Creators: name: Cao, Jing-Yuan
name: Ling, Li-lu
name: Ni, Wei-Jie
name: Guo, Hong-Lei
name: Yang, Min
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Computational Biology

description: Aldosterone exerts an enormous function on proximal tubular cells (PTC) senescence, which is a common pathomechanism contributing to renal dysfunction. Numerous studies have shown that oxidative stress is deeply involved in the pathophysiologic processes of chronic kidney diseases. The study aims to investigate whether autophagy could regulate the process of senescence through oxidative stress in PTC both in vivo and ex vivo. Our results suggested that aldosterone treatment increased the senescence and oxidative stress as evidenced by increased percent of SA-β-Gal positive cells, reactive oxygen species level, expression of NADPH oxidase 4 (NOX4) rather than NOX2, and the up-regulation of p21 in cultured PTC. Furthermore, the alternation of the expression of p62 and LC3-II/LC3-I demonstrated that aldosterone treatment remarkably influenced autophagic flux. NOX4 siRNA treatment or autophagy induction with rapamycin reduced the oxidative stress and senescence in aldosterone-induced PTC. On the contrary, inhibition of autophagy with chloroquine worsened these changes. Similar results were further confirmed in vivo. Our results suggested that autophagy may become a realistic therapeutic strategy against aldosterone-induced PTC injury via improving oxidative stress.
การบริหารจัดการอุทกภัยขององค์การบริหารส่วนตำบลระแหง อำเภอลาดหลุมแก้ว จังหวัดปทุมธานี
Creators: name: ชนากานต์ อดุลยพิจิตร
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: กระบวนการบริหารจัดการอุทกภัย, ประสิทธิผลด้านการบริหารจัดการอุทกภัย, Flood Disaster management process, Effectiveness of floods management

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
Το δικαίωμα στην ελευθερία της έκφρασης αντιμέτωπο με τα όρια του δημοσίου συμφέροντος, από το ζήτημα της προσβολής των εθνικών συμβόλων έως τους μάρτυρες δημοσίου συμφέροντος. Η αντίθεση της συνταγματικής νομολογίας του Supreme Court των ΗΠΑ με τη νομολογία των ευρωπαϊκών δικαστηρίων
Creators: name: Ασκητής, Αριστείδης Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Ελευθερία της έκφρασης
Καταστροφή της σημαίας
Μάρτυρες δημοσίου συμφέροντος
Supreme Court
Whistleblowers
Free speech

description: Σκοπός της παρούσας διπλωματικής είναι η διερεύνηση της συσχέτισης μεταξύ της ελευθερίας της έκφρασης και του δημοσίου συμφέροντος στην Ελληνική και Ευρωπαϊκή έννομη τάξη σε αντίθεση με την συνταγματική ερμηνεία της 1ης Τροπολογίας του Αμερικανικού Συντάγματος από το Ανώτατο Δικαστήριο των ΗΠΑ. Η συγκριτική επισκόπηση φανερώνει τις συγκλίσεις αλλά και τις διαφορές μεταξύ της ερμηνείας του δικαιώματος και του χώρου αναπνοής που η κάθε έννομη τάξη επιτρέπει στην ανάπτυξη του. Αντικείμενο ανάλυσης αποτέλεσε: α) το ζήτημα της κριτικής σε δημόσια πρόσωπα και η ανάπτυξη αντικειμενικών κριτηρίων για την επίλυση διαφορών που άπτονται της προσβολής της τιμής των προσώπων, β) η αντιμετώπιση των whistleblowers ή μαρτύρων δημοσίου συμφέροντος, υπό το πρίσμα της προστασίας τους από αντεκδικητικά μέτρα ως συνέπεια των αποκαλύψεων τους, στον δημόσιο τομέα και στους εργαζομένους σε υπηρεσίες πληροφοριών, γ) η καταστροφή των εθνικών συμβόλων με έμφαση στο ζήτημα της σημαίας, και κυρίως στις εμβληματικές, και ταυτόχρονα αμφιλεγόμενες, αποφάσεις του Ανώτατου Δικαστηρίου υπέρ της συνταγματικής προστασίας του δικαιώματος στην καταστροφή της εθνικής σημαίας ως μέρος του προστατευόμενου πολιτικού λόγου κατά την 1η Τροπολογία.
description: The aim of the present dissertation is the inquiry into the correlation between the freedom of expression and public interest in the Greek and European legal order in contrast to the constitutional interpretation of the 1st Amendment of the American Constitution from the Supreme Court of the USA. Comparative analysis indicates the convergence and the differences between the interpretation of the right and the breathing space each legal order allows for its development. The subject matter of the analysis has been : a) the issue of criticism to public figures and the development of objective criteria for the resolution of disputes which concern the offence to the honor of individuals, b) the attitude towards whistleblowers or crown witnesses, under the scope of the protection from retaliatory measures as a consequence of their revelations, in the public sector and employees of intelligence services, c) the desecration of national symbols with stress placed upon the issue of the flag, and mostly to the iconic, and controversial at the same time, decisions of the Supreme Court in favor of the constitutional protection of the desecration of the national flag as protected political speech according to the 1st Amendment.
Additional file 5 of Circadian clock gene Clock-Bmal1 regulates cellular senescence in Chronic obstructive pulmonary disease
Creators: name: Li, Lingling
name: Zhang, Min
name: Zhao, Chunyang
name: Cheng, Yusheng
name: Liu, Chuanmei
name: Shi, Minhua
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology
subject: Plant Biology

description: Additional file 5.
On the Existence of Radiation Gauges in Petrov type II spacetimes
Creators: name: Price, Larry R.
name: Shankar, Karthik
name: Whiting, Bernard F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The radiation gauges used by Chrzanowski (his IRG/ORG) for metric reconstruction in the Kerr spacetime seem to be over-specified. Their specification consists of five conditions: four, which we treat here as valid gauge conditions, plus an additional condition on the trace of the metric perturbation. In this work, we utilize a newly developed form of the perturbed Einstein equations to establish a condition -- on a particular tetrad component of the stress-energy tensor -- under which the full IRG/ORG can be imposed. Using gauge freedom, we are able to impose the full IRG for Petrov type II and type D backgrounds, using a different tetrad for each case. As a specific example, we work through the process of imposing the IRG in a Schwarzschild background, using a more traditional approach. Implications for metric reconstruction using the Teukolsky curvature perturbations in type D spacetimes are briefly discussed.
description: 21 pages, uses iop style files. v2: proved a stronger result for type II backgrounds, added a subsection on remaining gauge freedom in the full IRG and improved calrity and readability throughout due to insightful referee comments; published as Class. Quantum Grav. 24 (2007) 2367-2388
Confirming ALMA Calibration using Planck and ACT Observations
Creators: name: Farren, Gerrit S.
name: Partridge, Bruce
name: Kneissl, Rüdiger
name: Aiola, Simone
name: Datta, Rahul
name: Gralla, Megan
name: Li, Yaqiong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We test the accuracy of ALMA flux density calibration by comparing ALMA flux density measurements of extragalactic sources to measurements made by the Planck mission; Planck is absolutely calibrated to sub-percent precision using the dipole signal induced by the satellite's orbit around the solar system barycenter. Planck observations ended before ALMA began systematic observations, however, and many of the sources are variable, so we employ measurements by the Atacama Cosmology Telescope (ACT) to bridge the two epochs. We compare ACT observations at 93 and $\sim$145 GHz to Planck measurements at 100 and 143 GHz and to ALMA measurements made at 91.5 and 103.5 GHz in Band 3. For both comparisons, flux density measurements were corrected to account for the small differences in frequency using the best available spectral index for each source. We find the ALMA flux density scale (based on observations of Uranus) is consistent with Planck. All methods used to make the comparison are consistent with ALMA flux densities in Band 3 averaging 0.99 times those measured by Planck. One specific test gives ALMA/Planck = $0.996 \pm 0.024.$ We also test the absolute calibration of both ACT at 93 and $\sim$145 GHz and the South Pole Telescope (SPT) at 97.43, 152.9 and 215.8 GHz, again with reference to Planck measurements at 100, 143 and 217 GHz, as well as the internal consistency of measurements of compact sources made by all three instruments.
description: 26 pages, 4 figures, 6 tables, accepted to ApJS
Universal singlet-triplet qubits implemented near the transverse sweet spot
Creators: name: Xie, Wen-Xin
name: Zhang, Chengxian
name: Xue, Zheng-Yuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The key to realizing fault-tolerant quantum computation for singlet-triplet (ST) qubits in semiconductor double quantum dot (DQD) is to operate both the single- and two-qubit gates with high fidelity. The feasible way includes operating the qubit near the transverse sweet spot (TSS) to reduce the leading order of the noise, as well as adopting the proper pulse sequences which are immune to noise. The single-qubit gates can be achieved by introducing an AC drive on the detuning near the TSS. The large dipole moment of the DQDs at the TSS has enabled strong coupling between the qubits and the cavity resonator, which leads to a two-qubit entangling gates. When operating in the proper region and applying modest pulse sequences, both single- and two-qubit gates are having fidelity higher than 99%. Our results suggest that taking advantage of the appropriate pulse sequences near the TSS can be effective to obtain high-fidelity ST qubits.
description: 13 pages, 7 figures
Finite-Time Quantum Landauer Principle and Quantum Coherence
Creators: name: Van Vu, Tan
name: Saito, Keiji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Landauer principle states that any logically irreversible information processing must be accompanied by dissipation into the environment. In this study, we investigate the heat dissipation associated with finite-time information erasure and the effect of quantum coherence in such processes. By considering a scenario wherein information is encoded in an open quantum system whose dynamics are described by the Markovian Lindblad equation, we show that the dissipated heat is lower-bounded by the conventional Landauer cost, as well as a correction term inversely proportional to the operational time. To clarify the relation between quantum coherence and dissipation, we derive a lower bound for heat dissipation in terms of quantum coherence. This bound quantitatively implies that the creation of quantum coherence in the energy eigenbasis during the erasure process inevitably leads to additional heat costs. The obtained bounds hold for arbitrary operational time and control protocol. By following an optimal control theory, we numerically present an optimal protocol and illustrate our findings by using a single-qubit system.
description: 7+13 pages, 2+3 figures
Systematic derivation of hydrodynamic equations for viscoelastic phase separation
Creators: name: Spiller, Dominic
name: Brunk, Aaron
name: Habrich, Oliver
name: Egger, Herbert
name: Lukacova-Medvidova, Maria
name: Duenweg, Burkhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: (abridged) We present a detailed derivation of a simple hydrodynamic two-fluid model, which aims at the description of the phase separation of non-entangled polymer solutions, where viscoelastic effects play a role. It is directly based upon the coarse-graining of a well-defined molecular model, such that all degrees of freedom have a clear and unambiguous molecular interpretation. The considerations are based upon a free-energy functional, and the dynamics is split into a conservative and a dissipative part, where the latter satisfies the Onsager relations and the Second Law of thermodynamics. The model is therefore fully consistent with both equilibrium and non-equilibrium thermodynamics. The derivation proceeds in two steps: Firstly, we derive an extended model comprising two scalar and four vector fields, such that inertial dynamics of the macromolecules and of the relative motion of the two fluids is taken into account. In the second step, we eliminate these inertial contributions and, as a replacement, introduce phenomenological dissipative terms, which can be modeled easily by taking into account the principles of non-equilibrium thermodynamics. The final simplified model comprises the momentum conservation equation, which includes both interfacial and elastic stresses, a convection-diffusion equation where interfacial and elastic contributions occur as well, and a suitably convected relaxation equation for the end-to-end vector field. In contrast to the traditional two-scale description that is used to derive rheological equations of motion, we here treat the hydrodynamic and the macromolecular degrees of freedom on the same basis. Nevertheless, the resulting model is fairly similar, though not fully identical, to models that have been discussed previously. Notably, we find a rheological constitutive equation that differs from the standard Oldroyd-B model. ...
description: Submitted to Journal of Physics Condensed Matter
Enumeration of non-orientable 3-manifolds using face pairing graphs and union-find
Creators: name: Burton, Benjamin A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: Computational Geometry (cs.CG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 57N10, 68W05 (Primary) 57M04, 57M15 (Secondary)

description: Drawing together techniques from combinatorics and computer science, we improve the census algorithm for enumerating closed minimal P^2-irreducible 3-manifold triangulations. In particular, new constraints are proven for face pairing graphs, and pruning techniques are improved using a modification of the union-find algorithm. Using these results we catalogue all 136 closed non-orientable P^2-irreducible 3-manifolds that can be formed from at most ten tetrahedra.
description: 37 pages, 34 figures
Galaxy Morphologies Revealed with Subaru HSC and Super-Resolution Techniques I: Major Merger Fractions of L_UV~3-15 L_UV* Dropout Galaxies at z~4-7
Creators: name: Shibuya, Takatoshi
name: Miura, Noriaki
name: Iwadate, Kenji
name: Fujimoto, Seiji
name: Harikane, Yuichi
name: Toba, Yoshiki
name: Umayahara, Takuya
name: Ito, Yohito
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a super-resolution analysis of the Subaru Hyper Suprime-Cam (HSC) images to estimate the major merger fractions of z~4-7 dropout galaxies at the bright end of galaxy UV luminosity functions (LFs). Our super-resolution technique improves the spatial resolution of the ground-based HSC images, from ~1" to ~90%. We apply the super-resolution technique to 6412, 16, 94, and 13 very bright dropout galaxies at z~4, 5, 6, and 7, respectively, in a UV luminosity range of L_UV~3-15 L_UV* corresponding to -24~10 L_UV*, even after the AGN contribution is subtracted. The results support scenarios in which other additional mechanisms such as insignificant mass quenching and low dust obscuration contribute to the DPL shape of galaxy UV LFs.
description: 20 pages, 9 figures. Accepted for publication in PASJ
Stellar Clusters in NGC 1313: Evidence for Infant Mortality
Creators: name: Pellerin, Anne
name: Meyer, Martin
name: Harris, Jason
name: Calzetti, Daniela
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present evidence that infant mortality of stellar clusters is likely to be a major and very efficient process for the dissolution of young clusters in the spiral galaxy NGC 1313. Performing stellar PSF photometry on archival HST/ACS images of the galaxy, we find that a large fraction of early B-type stars are seen outside of star clusters and well spread within the galactic disk, consistent with the scenario of infant mortality. We also calculate the UV flux produced by the stars in and out the clusters and find that 75 to 90% of the UV flux in NGC 1313 is produced by stars outside the clusters. These results suggest that the infant mortality of star clusters is probably the underlying cause of the diffuse UV emission in starburst galaxies. Infant mortality would also explain the numerous B-type stars observed in the background field of our Galaxy as well. We exclude the possibility that unresolved low-mass star clusters and scaled OB associations might be the main source for the diffuse UV emission.
description: 5 pages, 3 figures, accepted for publication in the Astrophysical Journal Letters
Perturbed Kerr Black Holes can probe deviations from General Relativity
Creators: name: Barausse, Enrico
name: Sotiriou, Thomas P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although the Kerr solution is common to many gravity theories, its perturbations are different in different theories. Hence, perturbed Kerr black holes can probe deviations from General Relativity.
description: minor changes to match version published in Phys. Rev. Lett
Standard and non-standard primordial neutrinos
Creators: name: Serpico, P. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The standard cosmological model predicts the existence of a cosmic neutrino background with a present density of about 110 cm^{-3} per flavour, which affects big-bang nucleosynthesis, cosmic microwave background anisotropies, and the evolution of large scale structures. We report on a precision calculation of the cosmic neutrino background properties including the modification introduced by neutrino oscillations. The role of a possible neutrino-antineutrino asymmetry and the impact of non-standard neutrino-electron interactions on the relic neutrinos are also briefly discussed.
description: 4 pages, no figures. Contribution to the proceedings of SNOW 2006, Stockholm, May 2-6, 2006. Typos corrected, updated references
Additional file 1 of geneRFinder: gene finding in distinct metagenomic data complexities
Creators: name: Raíssa Silva
name: Padovani, Kleber
name: Góes, Fabiana
name: Alves, Ronnie
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Plant Biology

description: Additional file 1. Additional informationabout GeneRFinder-Benchmark and CAMI, genomes lists, contingency tables and repositories guides.
D-term Contributions to the Mixed Modulus-Anomaly Mediated Supersymmetry Breaking
Creators: name: Fukuyama, Takeshi
name: Kikuchi, Tatsuru
name: Okada, Nobuchika
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate effects of D-term contributions to the mixed modulus-anomaly mediated supersymmetry breaking scenario. In the original scenario, the tachyonic slepton problem in the pure anomaly mediated supersymmetry breaking is cured by modulus contributions. We generalize the scenario so as to include contributions from the D-terms of U(1)_Y and the gauged U(1)_{B-L} which is motivated in a grand unified theory based on a higher rank gauge group such as SO(10). As a consequence of additional $D$-term contributions to scalar masses, we obtain various soft supersymmetry breaking mass spectra, which are different from those obtained in the conventional mixed modulus-anomaly mediated supersymmetry breaking. Especially, we find that the lightest superpartner (LSP) neutralinos can be various types, such as Higgsino-like, wino-like and bino-like degenerating with the next LSP sfermions.
description: 15 pages, 8 figures. Some comments and four new figures have been added
Synergies between low- and intermediate-redshift galaxy populations revealed with unsupervised machine learning
Creators: name: Turner, Sebastian
name: Siudek, Małgorzata
name: Salim, Samir
name: Baldry, Ivan K.
name: Pollo, Agnieszka
name: Longmore, Steven N.
name: Małek, Katarzyna
name: Collins, Chris A.
name: Lisboa, Paulo J.
name: Krywult, Janusz
name: Moutard, Thibaud
name: Vergani, Daniela
name: Fritz, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The colour bimodality of galaxies provides an empirical basis for theories of galaxy evolution. However, the balance of processes that begets this bimodality has not yet been constrained. A more detailed view of the galaxy population is needed, which we achieve in this paper by using unsupervised machine learning to combine multi-dimensional data at two different epochs. We aim to understand the cosmic evolution of galaxy subpopulations by uncovering substructures within the colour bimodality. We choose a clustering algorithm that models clusters using only the most discriminative data available, and apply it to two galaxy samples: one from the second edition of the GALEX-SDSS-WISE Legacy Catalogue (GSWLC-2; $z \sim 0.06$), and the other from the VIMOS Public Extragalactic Redshift Survey (VIPERS; $z \sim 0.65$). We cluster within a nine-dimensional feature space defined purely by rest-frame ultraviolet-through-near-infrared colours. Both samples are similarly partitioned into seven clusters, breaking down into four of mostly star-forming galaxies (including the vast majority of green valley galaxies) and three of mostly passive galaxies. The separation between these two families of clusters suggests differences in the evolution of their galaxies, and that these differences are strongly expressed in their colours alone. The samples are closely related, with star-forming/green-valley clusters at both epochs forming morphological sequences, capturing the gradual internally-driven growth of galaxy bulges. At high stellar masses, this growth is linked with quenching. However, it is only in our low-redshift sample that additional, environmental processes appear to be involved in the evolution of low-mass passive galaxies.
description: Accepted for publication in MNRAS. 22 pages, 15 figures
OPE Constraints and the Leading Order Hadronic Contribution to (g-2)_mu
Creators: name: Maltman, Kim
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: OPE constraints are studied as a means of distinguishing between the versions of the I=1 vector spectral function extracted from (i) inclusive I=1 hadronic electroproduction cross-sections and (ii) inclusive I=1 hadronic tau decay data, with the goal of clarifying expectations for the leading order hadronic contribution to a_mu = (g-2)_mu /2 in the Standard Model. The constraints are shown to, at present, favor the tau decay data, and hence a Standard Model prediction for a_mu compatible with the BNL E821 experimental result. The relative role of the 2pi and 4pi contributions to the discrepancy between the integrated electroproduction results and the corresponding OPE constraints is also investigated, and the significance, in this context, of forthcoming re-measurements of the e^+e^- --> pi^+ pi^- pi^0 pi^0 cross-sections pointed out.
description: 6 pages, 5 figures, prepared for the Proceedings of the 9th International Workshop on Tau Lepton Physics
Symmetries of the Robinson-Trautman equation
Creators: name: Natorf, Wlodzimierz
name: Tafel, Jacek
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study point symmetries of the Robinson--Trautman equation. The cases of one- and two-dimensional algebras of infinitesimal symmetries are discussed in detail. The corresponding symmetry reductions of the equation are given. Higher dimensional symmetries are shortly discussed. It turns out that all known exact solutions of the Robinson--Trautman equation are symmetric.
description: 8 pages, latex2e, 4 tables, several references added
Spectral density matrix of a single photon measured
Creators: name: Wasilewski, Wojciech
name: Kolenderski, Piotr
name: Frankowski, Robert
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and demonstrate a method for measuring the spectral density matrix of a single photon pulse. The method is based on registering Hong-Ou-Mandel interference between photon to be measured and a pair of attenuated and suitably delayed laser pulses described by a known spectral amplitude. The density matrix is retrieved from a two-dimensional interferogram of coincidence counts. The method has been implemented for a type-I downconversion source, pumped by ultrashort laser pulses. The experimental results agree well with a theoretical model which takes into account the temporal as well as spatial effects in the source.
แนวทางการส่งเสริมการตลาดบริการแผนกผู้ป่วยนอก โรงพยาบาลสมเด็จพระยุพราชสว่างแดนดิน
Creators: name: วัจนารัตน์ สานุการ
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: ส่วนประสมทางการตลาดบริการ, ความพึงพอใจ, Marketing mix for service, Satisfaction

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์
แนวทางการพัฒนาจัดฝึกอบรมเชิงปฏิบัติการการพัฒนางานวิชาการจากงานประจำของภาควิชาสังคมศาสตร์ คณะสังคมศาสตร์และมนุษยศาสตร์ มหาวิทยาลัยมหิดล
Creators: name: ศศิธร ลบลํ้าเลิศ
name: เกศริน ธารีเทียน
Publisher: name: สำนักวิทยบริการ มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตปัตตานี
Year: 2015
Subjects: การฝึกอบรมเชิงปฏิบัติการ, งานวิชาการจากงานประจำ, ภาควิชาสังคมศาสตร์, คณะสังคมศาสตร์และมนุษยศาสตร์, Workshop training, Routine to Academic, Department of Social Sciences, Faculty of Social Sciences and Humanities

description: 1, 26, วารสารวิทยบริการ มหาวิทยาลัยสงขลานครินทร์