cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Οι σχολικές βιβλιοθήκες του ΕΠΕΑΕΚ και η συμβολή τους στην ενίσχυση της φιλαναγνωσίας: μια μελέτη περίπτωσης
Creators: name: Μαλιγκάνη, Ελένη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: σχολικές βιβλιοθήκες
φιλαναγνωσία
μελέτη περίπτωσης
school libraries
reading
case study

description: Οι σχολικές βιβλιοθήκες, θεσμός που αναπτύχθηκε κυρίως στον 20ο αι., συνδέονται στενά με το σχεδιασμό και την υλοποίηση του εκπαιδευτικού προγράμματος κάθε χώρας. Η ίδρυση των 499 σχολικών βιβλιοθηκών του ΕΠΕΑΕΚ στη χώρα μας στη δευτεροβάθμια εκπαίδευση προσδοκούσε ανάμεσα στα άλλα αυτές να αποτελέσουν έναν προνομιακό χώρο για την άσκηση δραστηριοτήτων που σχετίζονται με το βιβλίο και άρα να συμβάλλουν στη θεμελίωση της φιλαναγνωσίας. Η φιλαναγνωσία βέβαια ενισχύεται όταν έχει το χαρακτήρα της αισθητικής απόλαυσης της προσωπικής ανάπτυξης, της ελευθερίας στην πρόσβαση του βιβλίου. Η ελληνική εκπαιδευτική πραγματικότητα όμως, πάγια προσανατολισμένη στη μονοκρατορία του ενός σχολικού εγχειριδίου, δυσχεραίνει αυτή τη προσέγγιση. Πόσο μπορεί να συμβάλλει μια σχολική βιβλιοθήκη στην ενίσχυση των αναγνωστικών συνηθειών των μαθητών και μαθητριών και ποια επίδραση μπορεί να είχε η αναστολή της λειτουργίας της; Στην παρούσα μελέτη εξετάζεται η περίπτωση της λειτουργίας μιας σχολικής βιβλιοθήκης του νομού Θεσσαλονίκης. Επίσης εξετάζονται η στάση και οι απόψεις για στον θεσμό των βιβλιοθηκών των μαθητών και μαθητριών των δυο συστεγαζόμενων σχολείων που εξυπηρετούνταν από τη συγκεκριμένη σχολική βιβλιοθήκη.
description: The aim of the present thesis is the influence study of school library function on some aspects of pupils’ reading behavior. The foundation of 499 school libraries, with the financial support of the EE, in secondary education, among others, aimed at the reinforcement of pupils’ literacy. This study examines the impact a particular school library on the outskirts of Thessaloniki had on the reading habits of pupils and also their opinion on this institution. The purpose also is to show how the function of the library has changed the pupils’ reading behaviour and how the closing of the library affected them afterwards. It’s a case study research of a typical school library.
Morality and public administration
Creators: name: Abel, Richard
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis the relationship of morality to democratic public administration is examined. After a description of the role of the public administrator in the modern democratic state and a discussion of the powers of moral reasoning required by the public administrator, the relationship of morality to policy analysis is considered. It is argued that the pursuit of the public interest in domestic policy formation, implicit in democratic public administration and understood as a function of individual citizens' interests, can best be realized through adherence to classical political principles. International relations are shown to be susceptible to moral judgement, and an ethic of foreign policy formation consisting of the pursuit of the national public interest with rights as moral constraints upon policy is posited. Finally, the usefulness of codes of ethics in ensuring morally correct formation and implementation of public policy by administrators is assessed, the necessity for a morally adequate ethos of public service posited, and the question of how to foster such an ethos addressed.
Direct regularized reconstruction for the three-dimensional Calderón problem
Creators: name: Knudsen, Kim
name: Rasmussen, Aksel K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R30, 65J20 (Primary) 65N21 (Secondary)

description: Electrical Impedance Tomography gives rise to the severely ill-posed Calderón problem of determining the electrical conductivity distribution in a bounded domain from knowledge of the associated Dirichlet-to-Neumann map for the governing equation. The uniqueness and stability questions for the three-dimensional problem were largely answered in the affirmative in the 1980's using complex geometrical optics solutions, and this led further to a direct reconstruction method relying on a non-physical scattering transform. In this paper, the reconstruction problem is taken one step further towards practical applications by considering data contaminated by noise. Indeed, a regularization strategy for the three-dimensional Calderón problem is presented based on a suitable and explicit truncation of the scattering transform. This gives a certified, stable and direct reconstruction method that is robust to small perturbations of the data. Numerical tests on simulated noisy data illustrate the feasibility and regularizing effect of the method, and suggest that the numerical implementation performs better than predicted by theory.
description: 24 pages, 5 figures
Hydrogen Dynamics in Superprotonic CsHSO4
Creators: name: Wood, Brandon C.
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a detailed study of proton dynamics in the hydrogen-bonded superprotonic conductor CsHSO4 from first-principles molecular dynamics simulations, isolating the subtle interplay between the dynamics of the O--H chemical bonds, the O...H hydrogen bonds, and the SO4 tetrahedra in promoting proton diffusion. We find that the Grotthus mechanism of proton transport is primarily responsible for the dynamics of the chemical bonds, whereas the reorganization of the hydrogen-bond network is dominated by rapid angular hops in concert with small reorientations of the SO4 tetrahedra. Frequent proton jumping across the O--H...O complex is countered by a high rate of jump reversal, which we show is connected to the dynamics of the SO4 tetrahedra, resulting in a diminished CsHSO4/CsDSO4 isotope effect. We also find evidence of multiple timescales for SO4 reorientation events, leading to distinct diffusion mechanisms along the different crystal lattice directions. Finally, we employ graph-theoretic techniques to characterize the topology of the hydrogen-bond network and demonstrate a clear relationship between certain connectivity configurations and the likelihood for diffusive jump events.
description: 12 pages, 10 figures
On in-plane drill rotations for Cosserat surfaces
Creators: name: Saem, Maryam Mohammadi
name: Lewintan, Peter
name: Neff, Patrizio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 74B20, 74A20, 74A10, 74K25, 53A05, 53A10

description: We show under some natural smoothness assumptions that pure in-plane drill rotations as deformation mappings of a $C^2$-smooth regular shell surface to another one parametrized over the same domain are impossible provided that the rotations are fixed at a portion of the boundary. Put otherwise, if the tangent vectors of the new surface are obtained locally by only rotating the given tangent vectors, and if these rotations have a rotation axis which coincides everywhere with the normal of the initial surface, then the two surfaces are equal provided they coincide at a portion of the boundary. In the language of differential geometry of surfaces we show that any isometry which leaves normals invariant and which coincides with the given surface at a portion of the boundary, is the identity mapping.
Η ποιότητα της πληροφόρησης που παρέχουν οι ελληνικές τράπεζες σχετικά με τους κινδύνους που αναλαμβάνουν
Creators: name: Γακόπουλος, Δημήτριος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Πιστωτικό κίνδυνο
Βασιλεία II
Βασιλείας ΙΙΙ
Credit Risk
Basel II
Basel III

description: Μέσα από την παρούσα εργασία θα κάνουμε μία αναφορά στο βασικό υπόβαθρο λειτουργίας του τραπεζικού συστήματος θα αναφερθούμε εκτενέστερα στο ρυθμιστικό πλαίσιο της Βασιλείας I, στους περιορισμούς και τις κατευθύνσεις που ακολούθησαν οι τράπεζες σύμφωνα μ’ αυτό καθώς και στις αδυναμίες και κενά που είχε βάση των οποίων οδηγηθήκαμε στο νέο ρυθμιστικό πλαίσιο της Βασιλείας ΙΙ. Επιπρόσθετα θα αναφερθούμε εκτενέστερα και στις τελευταίες διατάξεις αυτής της σειρά εποπτικών ρυθμίσεων, στην Βασιλεία IIΙ, το οποίο δημιουργήθηκε για την προστασία του τραπεζικού συστήματος και στην γενικότερη οικονομική ισορροπία καθώς τα δύο προηγούμενα αποδείχτηκαν αναποτελεσματικά. Ένα από τα σημαντικότερα στοιχεία της διαχείρισης του τραπεζικού κινδύνου είναι η εκτίμηση του κινδύνου. Με βάση τις εποπτικές αρχές και ρυθμίσεις η κάθε τράπεζα θα πρέπει να προσεγγίσει με μεγάλη προσοχή τους βασικότερους κίνδυνους που μπορεί να αντιμετωπίσει το τραπεζικό σύστημα οι οποίοι διακρίνονται σε: Πιστωτικό κίνδυνο, Κίνδυνο Ρευστότητας, Κίνδυνο Αγοράς, Λειτουργικό Κίνδυνο, αλλά και Κεφαλαιακή Επάρκεια όπως αυτός καθορίστηκε από τα ρυθμιστικά πλαίσια της Βασιλείας με κατώτατα όρια και επιπλέον βελτιωτικές διατάξεις. Στα πλαίσια της εργασίας θα γίνει αναφορά στις τέσσερις μεγαλύτερες τράπεζες και στον τρόπο που αντιμετωπίζουν τους κινδύνους, στις μεθόδους μέτρησης των κινδύνων και σύγκριση αυτών για να μπορέσουμε να βγάλουμε ένα γενικευμένο συμπέρασμα για το πώς εφαρμόζεται η Βασιλεία ΙΙΙ στην πράξη.
description: In this paper we refer to the main operating base of the banking system, while we extensively look into the regulatory framework of Basel I , the restrictions and the guidelines the banks followed due to that as well as the weaknesses and shortcomings which led to the new regulatory framework of Basel ΙΙ. In addition, we expand on the last provisions of this line of supervisory arrangements, that is on Basel IIΙ, which was created for the protection of the banking system, and we also talk about the overall economic balance after the previous two proved to be ineffective. One of the most important elements of bank risk management is risk assessment. Based on the supervisory principles and regulations every bank should very carefully calculate the main risks the banking system may face which are: Credit Risk, Liquidity Risk, Market Risk, Operational Risk and Capital Adequacy as determined by the regulatory framework of Basel I with thresholds and additional provisions for improvement. Finally, the project deals with the four largest banks and the way they cope with risk, the methods they use to calculate risk and the comparison of all these in order to draw a generalized conclusion about how Basel III is applied.
Submajorization on $\ell^p(I)^+$ determined by increasable doubly substochastic operators and its linear preservers
Creators: name: Ljubenović, Martin Z.
name: Rakić, Dragan S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We note that the well-known result of Von Neumann \cite{von} is not valid for all doubly substochastic operators on discrete Lebesgue spaces $\ell^p(I)$, $p\in[1,\infty)$. This fact lead us to distinguish two classes of these operators. Precisely, the class of increasable doubly substochastic operators on $\ell^p(I)$ is isolated with the property that an analogue of the Von Neumann result on operators in this class is true. The submajorization relation $\prec_s$ on the positive cone $\ell^p(I)^+$, when $p\in[1,\infty)$, is introduced by increasable substochastic operator and it is provided that submajorization may be considered as a partial order. Two different shapes of linear preservers of submajorization $\prec_s$ on $\ell^1(I)^+$ and on $\ell^p(I)^+$, when $I$ is an infinite set, are presented.
Global properties of the HI high velocity sky, a statistical investigation based on the LAB survey
Creators: name: Kalberla, Peter M. W.
name: Haud, Urmas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the properties of all major HVC complexes from a sample compiled 1991 by Wakker & van Woerden (WvW). We use the Leiden/Argentine/Bonn all sky 21-cm line survey and decompose the profiles into Gaussian components. We find a well defined multi-component structure for most of the HVC complexes. The cold HVC phase has lines with typical velocity dispersions of sigma = 3 km/s and exists only within more extended broad line regions, typically with sigma = 12 km/s. The motions of the cores relative to the envelopes are characterized by Mach numbers M = 1.5. The center velocities of the cores within a HVC complex have typical dispersions of 20 km/s. Remarkable is the well defined two-component structure for some prominent HVC complexes in the outskirts of the Milky Way: Complex H, the Magellanic Stream and the Leading Arm. There might be some indications for an interaction between HVCs and disk gas at intermediate velocities. This is possible for complex H, M, C, WB, WD, WE, WC, R, G, GCP, and OA, but not for complex A, MS, ACVHV, EN, WA, and P. Conclusions: The line widths, determined by us, imply that estimates of HVC masses, as far as derived from the WvW database, need to be scaled up by a factor 1.4. Correspondingly, guesses for the external pressure of a confining coronal gas need to be revised upward by a factor of 2. The HVC multi-phase structure implies in general that currently the halo pressure is significantly underestimated. In consequence, the HVC multi-phase structure may indicate that most of the complexes are circum-galactic. HVCs have turbulent energy densities which are an order of magnitude larger than that of comparable clumps in the Galactic disk.
description: Accepted for publication in A&A
Evolution of the Pancaking Effect in a LCDM Cosmology
Creators: name: Noh, Yookyung
name: Lee, Jounghun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore the evolution of the large-scale anisotropy in the velocity field caused by the gravitational pancaking effect assuming a LCDM universe. The Millennium Run halo catalogs at four different redshifts, z=0, 0.5, 1 and z=2 are analyzed to find that the pancaking effect starts to intervene the hierarchical structure formation at redshift z=2 when a characteristic pancake scale is around 3 Mpc/h. It is also clearly shown how the degree and scale of the pancaking effect changes with time. An analytic model based on the Zel'dovich approximation is presented to explain quantitatively the evolution of the velocity-pancake alignment. A cosmological implication of our finding and a possibility of detecting a signal in real universe are discussed.
description: accepted by ApJ, 21 pages, 6 figures, discussion and error analysis improved
The Disconnect Between UV and White-Light Flares in Low-Mass Stars
Creators: name: Jackman, James
name: Shkolnik, Evgenya
name: Million, Chase
name: Fleming, Scott
Publisher: name: Zenodo
Year: 2021
Subjects: Cool Stars on the main sequence
Very low mass stars

description: Contemporary studies of exoplanet habitability often use white-light measurements to estimate the ultraviolet (UV) effects of stellar flares, often by assuming a 9000K blackbody for the bolometric flare spectrum. We have combined TESS and archival GALEX photometry to test the UV predictions of white-light flare rates using the 9000K model and discuss the background and our methodology in this poster. We have found from our preliminary results that the UV predictions of white-light flare rates do not accurately reflect the NUV or FUV flaring activity of low-mass stars and are working to quantify the scale of this disconnect.
description: {"references": ["Venot, O., Rocchetto, M., Carl, S., et al. 2016, ApJ, 830, 77. doi:10.3847/0004-637X/830/2/77", "Rimmer, P. B., Xu, J., Thompson, S. J., et al. 2018, Science Advances, 4, eaar3302. doi:10.1126/sciadv.aar3302", "Gunther, M.~N., Zhan, Z., Seager, S., et al. 2020, AJ, 159, 60. doi:10.3847/1538-3881/ab5d3a", "Million, C., Fleming, S.~W., Shiao, B., et al. 2016, ApJ, 833, 292. doi:10.3847/1538-4357/833/2/292"]}
Study of the Power Beam Pattern of RATAN-600 During the Deep RZF Survey (1998-2003)
Creators: name: Majorova, E. K.
name: Bursov, N. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper proposes a method for constructing an experimental power beam pattern (PB) of RATAN-600 based on the sample of NVSS sources observed in the process of a deep sky survey near local zenith. The data obtained from observations of radio sources at wave 7.6 cm in nine bands of the survey (the 2002 and 2003 sets) are used to construct vertical PB of the telescope at rather large offsets from the central horizontal section of the PB (+/-36'). The experimental PBs obtained using different methods are compared and the root-mean-square deviations of the experimental PB from the corresponding computed PB are determined. The stability of the power beam pattern in its central part (+/-6') during the RATAN-600 Zenith Field (RZF) survey (1998-2003) and the accuracies of the fluxes of the sources observed within the framework of this survey and included into the RZF catalog are estimated.
description: 15 pages, 17 figures
Additional file 1 of Achieving the “Ending the HIV Epidemic in the U.S.” incidence reduction goals among at-risk populations in the South
Creators: name: Hamilton, Deven T.
name: Hoover, Karen W.
name: Smith, Dawn K.
name: Delaney, Kevin P.
name: Wang, Li Yan
name: Li, Jingjing
name: Hoyte, Tamika
name: Jenness, Samuel M.
name: Goodreau, Steven M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Appendix.
Improving the variational quantum eigensolver using variational adiabatic quantum computing
Creators: name: Harwood, Stuart M.
name: Trenev, Dimitar
name: Stober, Spencer T.
name: Barkoutsos, Panagiotis
name: Gujarati, Tanvi P.
name: Mostame, Sarah
name: Greenberg, Donny
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The variational quantum eigensolver (VQE) is a hybrid quantum-classical algorithm for finding the minimum eigenvalue of a Hamiltonian that involves the optimization of a parameterized quantum circuit. Since the resulting optimization problem is in general nonconvex, the method can converge to suboptimal parameter values which do not yield the minimum eigenvalue. In this work, we address this shortcoming by adopting the concept of variational adiabatic quantum computing (VAQC) as a procedure to improve VQE. In VAQC, the ground state of a continuously parameterized Hamiltonian is approximated via a parameterized quantum circuit. We discuss some basic theory of VAQC to motivate the development of a hybrid quantum-classical homotopy continuation method. The proposed method has parallels with a predictor-corrector method for numerical integration of differential equations. While there are theoretical limitations to the procedure, we see in practice that VAQC can successfully find good initial circuit parameters to initialize VQE. We demonstrate this with two examples from quantum chemistry. Through these examples, we provide empirical evidence that VAQC, combined with other techniques (an adaptive termination criteria for the classical optimizer and a variance-based resampling method for the expectation evaluation), can provide more accurate solutions than "plain" VQE, for the same amount of effort.
description: 21 pages, 5 figures
Laboratory Atomic Astrophysics for near-infrared Stellar Spectroscopy
Creators: name: Hartman, Henrik
name: Burheim, Madeleine
name: Nilsson, Hampus
name: Li, Wenxian
name: Jönsson, Per
name: LUMCAS
Publisher: name: Zenodo
Year: 2021

description: Astronomical infrared observations are of increasing importance for stellar spectroscopy. The analysis of element abundance relies on high-quality observations, stellar models, and ultimately on accurate atomic data. With the growing number of near-IR astronomical observations and surveys, the absence of highaccuracy data is becoming apparent and a severe limiting factor. We run a program to take up the task to provide evaluated, high-accuracy atomic data for important transitions in the near-infrared spectral region, mainly 1-5 microns. A combinations of both experimental and theoretical techniques is used, to provide complete sets of data with a low uncertainty. FTS measurements of a discharge are combined with laser induced fluorescence techniques, and GRASP2k and ATSP2k atomic structure calculations for the theoretical values.
description: {"references": ["Nature, editorial Nature 503, 437 (2013)", "Bean, Seifahrt, Hartman, et al., The CRIRES search for planets, ApJ 713, 410 (2010)", "http://www.subarutelescope.org/Observing/Instruments/IRCS/index.html", "SONG network, http://song.phys.au.dk", "C. Froese Fischer, G. Tachiev, G. Gaigalas and M. Godefroid, Comput. Phys. Commun., 176 559 (2007).", "P. J\u00f6nsson, G. Gaigalas, J. Biero\u0144, C. Froese Fischer, and I.P. Grant, Comput. Phys. Commun 184 2197 (2013)", "Pehlivan Rhodin, A., Hartman, H., Nilsson, H., J\u00f6nsson, P., A&A 598 (2017)", "Pehlivan Rhodin, A., Hartman, H., Nilsson, H., J\u00f6nsson, P., in review (2021)", "Holmes, C., et al., ApJS 224, 35 (2016)", "Li,W., et al. MNRAS 502, 3780 (2021)"]}
Nachhaltigkeit und Energieeffizienz für KMU
Creators: name: Schreynemackers, Pia
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2023
Subjects: Compliance
Nachhaltigkeit
Regularien
Gesetze
Normen
Management
Energie
Umwelt
KI
Künstliche Intelligenz
Digitalisierung
Dokumentenanalyse
Dokumentenmanagement
Vernetzung

description: Durch die stetig erneuerten Regularien der Europäischen Union sind die Herausforderungen, diese einzuhalten, schwerer geworden. In unserem Vortrag erfahren Sie mehr über die Aktualisierungen der Reglungen für mehr Nachhaltigkeit in Ihrem Unternehmen. Wir möchten uns unter anderem den Aufgaben der Lieferkettenverpflichtungen, aber auch den Herausforderungen der Energieeffizienz und Nachhaltigkeitsberichterstattung widmen. In diesen Bereichen sind die Anforderungen in den letzten Jahren, auch für kleinere Unternehmen, immer größer geworden und erfordern daher gezielt mehr Aufmerksamkeit. Die Anforderungen beinhalten unter anderem, dass ab 2024 neue Heizungen in Deutschland zu mindestens 65 Prozent erneuerbare Energien nutzen müssen. Zudem wollen Bund und Länder bis 2030 50 Terrawattstunden Energie einsparen und verpflichten Unternehmen dazu, Energie- oder Umweltmanagementsysteme einzuführen und ihre Energieeffizienzmaßnahmen zu veröffentlichen. Gemeinsam thematisieren wir dazu geschickte Lösungen der Informationslogistik und lernen, wie diese in die Systeme der Unternehmen eingebunden werden können. Zudem informieren wir über Assistenzsysteme wie das Projekt "Sustainalyze", in dem ein Tool zur schnelleren Handhabung von Nachhaltigkeitsberichten entwickelt wird und somit einen bedeutenden Mehrwert für Unternehmen schafft.
Temperature and entropy-area relation of quantum matter near spherically symmetric outer trapping horizons
Creators: name: Kurpicz, Fiona
name: Pinamonti, Nicola
name: Verch, Rainer
Publisher: name: arXiv
Year: 2021
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
subject: 83C57, 83C47, 81T05, 81T20

description: We consider spherically symmetric spacetimes with an outer trapping horizon. Such spacetimes are generalizations of spherically symmetric black hole spacetimes where the central mass can vary with time, like in black hole collapse or black hole evaporation. These spacetimes possess in general no timelike Killing vector field, but admit a Kodama vector field which provides a replacement. Spherically symmetric spacelike cross-sections of the outer trapping horizon define in- and outgoing lightlike congruences. We investigate a scaling limit of Hadamard 2-point functions of a quantum field on the spacetime onto the ingoing lightlike congruence. The scaling limit 2-point function has a universal form and a thermal spectrum with respect to the time-parameter of the Kodama flow, where the inverse temperature is related to the surface gravity of the horizon cross-section in the same way as in the Hawking effect for an asymptotically static black hole. Similarly, the tunneling probability in the scaling limit between in- and outgoing Fourier modes with respect to the the Kodama time shows a thermal distribution with the same inverse temperature, determined by the surface gravity. This can be seen as a local counterpart of the Hawking effect for a dynamical horizon in the scaling limit. The scaling limit 2-point function as well as the 2-point functions of coherent states of the scaling-limit-theory have relative entropies behaving proportional to the cross-sectional horizon area. Thereby, we establish a local counterpart, and microscopic interpretation in the setting of quantum field theory on curved spacetimes, of the dynamical laws of outer trapping horizons, derived by Hayward and others in generalizing the laws of black hole dynamics originally shown for stationary black holes by Bardeen, Carter and Hawking. (Extended abstract in the article.)
description: latex2e, 44 pages, 1 Figure. v2: Typos removed, minor errors corrected, references added. This version matches the journal publication in Lett. Math. Phys. up to formatting
Buoyant Bubbles in a Cooling Intracluster Medium I. Hydrodynamic Bubbles
Creators: name: Gardini, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Over the past several years, numerous examples of X-ray cavities coincident with radio sources have been observed in so-called "cool core" clusters of galaxies. Motivated by these observations, we explore the evolution and the effect of cavities on a cooling intracluster medium (ICM) numerically, adding relevant physics step by step. In this paper we present a first set of hydrodynamical, high resolution (1024^3 effective grid elements), three-dimensional simulations, together with two-dimensional test cases. The simulations follow the evolution of radio cavities, modeled as bubbles filled by relativistic plasma, in the cluster atmosphere while the ICM is subject to cooling. We find that the bubble rise retards the development of a cooling flow by inducing motions in the ICM which repeatedly displace the material in the core. Even bubbles initially set significantly far from the cluster center affect the cooling flow, although much later than the beginning of the simulation. The effect is, however, modest: the cooling time is increased by at most only 25%. As expected, the overall evolution of pure hydrodynamic bubbles is at odds with observations, showing that some additional physics has to be considered in order to match the data.
description: 12 pages, 14 figures, accepted for publication in A&A
Multiple Stellar Populations in AGB stars of Galactic Globular Clusters
Creators: name: Lagioia, E. P.
name: Milone, A. P.
name: Marino, A. F.
name: Tailo, M.
name: Renzini, A.
name: Carlos, M.
name: Cordoni, G.
name: Dondoglio, E.
name: Jang, S.
name: Karakas, A.
name: Dotter, A.
Publisher: name: Zenodo
Year: 2021
Subjects: Globular Star Clusters
Stellar populations
AGB stars
Chemical enrichment
Milky Way Galaxy

description: Multiple stellar populations (MPs) are a common feature of Globular Clusters (GCs). Their general properties have been widely studied among main-sequence, red giant branch (RGB) and horizontal branch (HB) stars, but a common framework is still missing at later evolutionary stages. We studied the MP phenomenon along the asymptotic giant branch (AGB) sequences in 58 GCs, observed with the Hubble Space Telescope in UV and optical bands. Using UV-optical color-magnitude diagrams, we selected the AGB members of each cluster and identified the AGB candidates. We studied the photometric properties of the AGB stars and found that: 1) the spread of AGB stars in photometric indices sensitive to chemical variations of light-elements and helium is typically larger than that expected from photometric errors; 2) the fraction of metal-enhanced ("anomalous") stars in the AGB is on average lower than in the RGB ; 3) the fraction of 1G stars derived from the chromosome map of AGB stars in 15 GCs is larger than that in RGB stars; 4) the AGB/HB frequency correlates with the average mass of the most helium-enriched population. These findings represent a clear evidence of the presence of MPs along the AGB of Galactic GCs and indicate that a significant fraction of helium-enriched stars do not evolve to the AGB phase, leaving the HB sequence toward higher effective temperatures, as predicted by the AGB manqué scenario.
Energy efficiency and GHG emission intensity values for logistics sites
Creators: name: Fossa, Andrea
name: Jarmer, Jan-Philipp
name: Dobers, Kerstin
name: Perotti, Sara
name: Romano, Scarlet
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2023
Subjects: Green Logistics
Carbon Footprint
Logistics sites
Logistics hubs

description: In 2021, we have established the market study "Energy efficiency and GHG emission intensity of logistics sites", launched within the research initiative "German, Italian & Latin American consortium for resource efficient logistics hubs & transport". The research bases on previous studies in Italy, Germany and Latin America and aims at studying the energy efficiency and GHG emission intensity of logistics sites at global scale. We considered logistics sites such as warehouses, distribution centres, transhipment sites, and terminals; examining (i) the solutions in use to reduce the environmental impact, and (ii) consumption and GHG emissions related to the site as well as to the activities performed. Our previous research outlined particular interest from industry and the work is accompanied by and supports the ongoing discussions related to international standardisation of GHG emissions quantification of logistics chains (planned ISO 14083). During the webinar, we will share and discuss the following - GILA project introduction - Overall results of the market study (focus warehouses, distribution centres, transhipment sites) o Approach for carbon accounting o Data base o GHG emission results and KPIs o Energy efficiency measures o Sustainable asset tool: Dashboard for logistics hubs - GILA’s roadmap 2023 and possibilities to participate (e.g. market study 2023, pilot studies) The webinar is jointly organized by the GILA partners Politecnico di Milano, GreenRouter, Universidad de los Andes and Fraunhofer IML.
Thermodynamic Uncertainty Relation Bounds the Extent of Anomalous Diffusion
Creators: name: Hartich, David
name: Godec, Aljaz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In a finite system driven out of equilibrium by a constant external force the thermodynamic uncertainty relation (TUR) bounds the variance of the conjugate current variable by the thermodynamic cost of maintaining the non-equilibrium stationary state. Here we highlight a new facet of the TUR by showing that it also bounds the time-scale on which a finite system can exhibit anomalous kinetics. In particular, we demonstrate that the TUR bounds subdiffusion in a single file confined to a ring as well as a dragged Gaussian polymer chain even when detailed balance is satisfied. Conversely, the TUR bounds the onset of superdiffusion in the active comb model. Remarkably, the fluctuations in a comb model evolving from a steady state behave anomalously as soon as detailed balance is broken. Our work establishes a link between stochastic thermodynamics and the field of anomalous dynamics that will fertilize further investigations of thermodynamic consistency of anomalous diffusion models.
description: 6 pages, 4 figures (Supplemental material 3 pages, 1 figure), published version in PRL, Corrected Ref. 53 and typos
Critically slow operator dynamics in constrained many-body systems
Creators: name: Feldmeier, Johannes
name: Knap, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The far-from-equilibrium dynamics of generic interacting quantum systems is characterized by a handful of universal guiding principles, among them the ballistic spreading of initially local operators. Here, we show that in certain constrained many-body systems the structure of conservation laws can cause a drastic modification of this universal behavior. As an example, we study operator growth characterized by out-of-time-order correlations (OTOCs) in a dipole-conserving fracton chain. We identify a critical point with sub-ballistically moving OTOC front, that separates a ballistic from a dynamically frozen phase. This critical point is tied to an underlying localization transition and we use its associated scaling properties to derive an effective description of the moving operator front via a biased random walk with long waiting times. We support our arguments numerically using classically simulable automaton circuits.
description: 4+2 pages, 4+3 figures; close to published version
Towards a high resolution view of infrared line formation
Creators: name: Montelius, Martin
name: Ryde, Nils
name: Jönsson, Henrik
Publisher: name: Zenodo
Year: 2021
Subjects: Post Main Sequence Cool Stars
Spectroscopy
High resolution
Near infrared
H band
Macroturbulence
NLTE correction
Astrophysical line strength
Hyperfine structure
K giant stars

description: We have used H band spectra from IGRINS (R ~45000) of 34 K giants to investigate the limits of infrared spectroscopy. The principal question is: to what extent do abundances derived from infrared spectra agree with optical values, and which aspects of the line formation cause eventual discrepancies? The aspects investigated in this study are: macroturbulence determination; astrophysical line strengths; NLTE corrections; and hyperfine structure. Our infrared abundances are benchmarked against results from high resolution optical spectra of the same stars (Jönsson, H., et al., in prep.). Stellar parameters derived from the optical spectra are used in this study, as techniques for determining them from infrared spectra are still being developed. Preliminary results show good agreement between infrared and optical results for a number of elements. The method of determining macroturbulence has shown to be a decisive factor in supersolar abundance trends. A method that accounts for fine and hyperfine structure lines when astrophysically measuring spectral line strength has been developed, along with showing the importance of adjusting lines without lab measurements. NLTE corrections from Amarsi, A., et al. (2020) have been evaluated and shown to generally improve the agreement between optical and infrared results. Accounting for hyperfine structure lines has shown to be essential for elements with strong lines.
description: Study performed as part of Master's Degree at Lund Observatory
description: {"references": ["Piskunov, Nikolai., Valenti, Jeff A. (2017). Spectroscopy Made Easy: Evolution arXiv:1606.06073", "Barklem, Paul S. (2016). Accurate abundance analysis of late-type stars: advances in atomic physics arXiv:1604.07659", "Amarsi, A. M et al. (2020). The GALAH Survey: non-LTE departure coefficients for large spectroscopic surveys arXiv:2008.09582", "Cowan, Robert D. (1981). The theory of atomic structure and spectra"]}
IMMEDIATE RESULTS OF MINI-GASTRIC BYPASS IN THE TRADITIONAL WAY FOR OBESITY AGAINST THE BACKGROUND OF TYPE 2 DIABETES MELLITUS
Creators: name: Botirov, J.A.
name: Sotiboldiev, A.A.
name: Ibragimov, U.Ya.
Publisher: name: Zenodo
Year: 2024

description: Obesity is currently becoming a global health problem worldwide, as about 1.7 billion people are overweight [5;6]. According to WHO, about 7% of the world's adult population is obese, while in developed countries about a third of the population (33.3%) is overweight [1]. A direct relationship has been established between the increase in the prevalence of obesity and the growth in cases of type 2 diabetes. According to WHO, the likelihood of developing diabetes increases by 20% with an increase in BMI for every 1 kg/m2 [2;3].
OECD Productivity Statistics, 1950-2017
Creators: name: Organisation For Economic Co-Operation And Development
Publisher: name: UK Data Service
Year: 2019

description: The Organisation for Economic Co-operation and Development (OECD) Productivity Statistics includes indicators on labour productivity, multi-factor productivity (MFP) and capital services. It also includes OECD estimates of labour productivity levels and a breakdown of gross domestic product (GDP) per capita in its components. Data run from 1985 and are internationally comparable.

 These data were first provided by the UK Data Service in March 2015.
Dispersion and the Speed-Limited Particle-in-Cell Algorithm
Creators: name: Jenkins, Thomas G.
name: Werner, Gregory R.
name: Cary, John R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This paper discusses temporally continuous and discrete forms of the speed-limited particle-in-cell (SLPIC) method first treated by Werner et al. [Phys. Plasmas 25, 123512 (2018)]. The dispersion relation for a 1D1V electrostatic plasma whose fast particles are speed-limited is derived and analyzed. By examining the normal modes of this dispersion relation, we show that the imposed speed-limiting substantially reduces the frequency of fast electron plasma oscillations while preserving the correct physics of lower-frequency plasma dynamics (e.g. ion acoustic wave dispersion and damping). We then demonstrate how the timestep constraints of conventional electrostatic particle-in-cell methods are relaxed by the speed-limiting approach, thus enabling larger timesteps and faster simulations. These results indicate that the SLPIC method is a fast, accurate, and powerful technique for modeling plasmas wherein electron kinetic behavior is nontrivial (such that a fluid/Boltzmann representation for electrons is inadequate) but evolution is on ion timescales.
description: 29 pages, 6 figures
Is a new site for the i-process really needed?
Creators: name: Karinkuzhi, Drisya
name: Van Eck, Sophie
name: Jorissen, Alain
name: Goriely, Stephane
name: Siess, Lionel
name: Merle, Thibault
name: Escorza, Ana
name: Masseron, Thomas
Publisher: name: Zenodo
Year: 2021
Subjects: Post main-sequence cool stars

description: We present our recent paper Karinkuzhi et al. 2021, A&A, 645, 61 titled: "Low-mass, low-metallicity stars as an efficient i-process site explaining CEMP-rs stars" as a poster.
NGTS clusters survey - III: A low-mass eclipsing binary in the Blanco 1 open cluster spanning the fully convective boundary
Creators: name: Smith, Gareth
name: Gillen, Edward
name: Queloz, Didier
name: Hodgkin, Simon
Publisher: name: Zenodo
Year: 2021
Subjects: Stellar systems, clusters, and associations
Eclipsing binary
Stellar evolution

description: We present the discovery and characterisation of a P ~ 1.1 day, low-mass eclipsing binary (EB) found by the Next Generation Transit Survey in the ~115 Myr old Blanco 1 open cluster. The system is the first well-characterised EB in Blanco 1; it has a low-mass tertiary companion, a low mass ratio, and components that straddle the fully convective boundary. We simultaneously model light curves from NGTS, TESS, SPECULOOS and SAAO; radial velocities from VLT/UVES and Keck/HIRES; and the system's spectral energy distribution. We compare the system properties to the predictions of seven stellar evolution models. This new EB joins a list of 20 well-characterised, low-mass, sub-Gyr EBs which constitute some of the strongest observational tests of stellar evolution theory at low masses and young ages.
On the magnetic field of red giants ε Tau and ν Oph
Creators: name: Butkovskaya, Varvara
name: Plachinda, Sergei
name: Pankov, Nikolai
Publisher: name: Zenodo
Year: 2021
Subjects: Post main sequence cool stars
red giants
stellar magnetic fields
spectropolarimetry

description: We present the results of a search for the magnetic field inhomogeneity for the red giants$\epsilon$ Tau and $\nu$ Oph. The study is based on spectropolarimetric observations obtained in 2008-2010 with the ESPaDOnS CFHT. We found some of the lines in spectra of both stars to be distorted by random polarization outliers, presumably of an instrumental nature. Therefore, to measure the magnetic field from the unblended individual lines, we preliminarily cleared the initial array of spectral lines from the lines distorted by the outliers. Calculated in such manner magnetic field of $\epsilon$ Tau exceeds 3$\sigma$ on one from ten nights. The statistical distribution of the magnetic field of $\epsilon$ Tau shows a deviation from the normal distribution on two nights. We assume this may be due to the inhomogeneity of the magnetic field of the star. No statistically significant magnetic field on $\nu$ Oph was found.
description: S. Plachinda acknowledge the support of Ministry of Science and Higher Education of the Russian Federation under Grant number 075-15-2020-780 (N13.1902.21.0039). This study is based on observations obtained at the CFHT. This research used the facilities of the Canadian Astronomy Data Centre operated by the National Research Council of Canada with the support of the Canadian Space Agency.
description: {"references": ["Auri\u00e8re, M., Konstantinova-Antova, R., Charbonnel, C. et al. (2015), A&A, 574, A90.", "Plachinda, S. I., & Tarasova, T. N. (1999), ApJ, 514, 402.", "Plachinda, S., Butkovskaya, V., Pankov, N. (2021), AN, in press, eprint arXiv:2102.03158"]}
The Higgs intense--coupling regime in constrained SUSY models and its astrophysical implications
Creators: name: Djouadi, Abdelhak
name: Mambrini, Yann
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the Higgs intense--coupling regime, in which all Higgs particles of the Minimal Supersymmetric Standard Model are light with masses of the same order and the value of $\tb$ the ratio of vacuum expectation values of the two Higgs fields is large, in the framework of Supergravity scenarios with non--universal soft Supersymmetry breaking scalar masses in the Higgs sector. In particular, we calculate the relic density abundance of the lightest neutralino candidate for cold dark matter and the rates in direct and indirect detection at present and future experiments. We first show that while in the mSUGRA model this regime is disfavored by present data, there are regions in the parameter space of models with non--universal Higgs masses where it can occur. We then show that because of the large value of $\tanβ$ and the relatively low values of the neutral Higgs boson masses, the cross section for neutralino--nucleon scattering is strongly enhanced in this regime and would allow for the observation of a signal in direct detection experiments such as CDMS--Soudan. The expected sensitivity of gamma--ray detectors like GLAST might be also sufficient to observe the annihilation of neutralinos in such a regime.
description: 19 pages, 5 figures
Medium-induced radiative kernel with the Improved Opacity Expansion
Creators: name: Barata, João
name: Mehtar-Tani, Yacine
name: Soto-Ontoso, Alba
name: Tywoniuk, Konrad
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the fully differential medium-induced radiative spectrum at next-to-leading order (NLO) accuracy within the Improved Opacity Expansion (IOE) framework. This scheme allows us to gain analytical control of the radiative spectrum at low and high gluon frequencies simultaneously. The high frequency regime can be obtained in the standard opacity expansion framework in which the resulting power series diverges at the characteristic frequency $ω_c\sim \hat q L^2$. In the IOE, all orders in opacity are resumed systematically below $ω_c$ yielding an asymptotic series controlled by logarithmically suppressed remainders down to the thermal scale $T \ll ω_c$, while matching the opacity expansion at high frequency. Furthermore, we demonstrate that the IOE at NLO accuracy reproduces the characteristic Coulomb tail of the single hard scattering contribution as well as the Gaussian distribution resulting from multiple soft momentum exchanges. Finally, we compare our analytic scheme with a recent numerical solution, that includes a full resummation of multiple scatterings, for LHC-inspired medium parameters. We find a very good agreement both at low and high frequencies showcasing the performance of the IOE which provides for the first time accurate analytic formulas for radiative energy loss in the relevant perturbative kinematic regimes for dense media.
description: 54 pages, 5 figures. Typos fixed. Matches published version
Ο Ελληνισμός της Αιγύπτου (1830-1974)
Creators: name: Ρούσσης, Γεώργιος
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2024
Subjects: subject: Έλληνες -- Αίγυπτος -- Ιστορία -- 19ος αιώνας
subject: Έλληνες -- Αίγυπτος -- Ιστορία -- 20ος αιώνας
subject: Έλληνες -- Αίγυπτος -- Πολιτισμός
subject: Έλληνες -- Αίγυπτος -- Οικονομικές συνθήκες
subject: Έλληνες -- Αίγυπτος -- Ιστορία -- Φιλανθρωπίες
subject: Αίγυπτος -- Πνευματική ζωή -- 19ος αιώνας
subject: Αίγυπτος -- Πνευματική ζωή -- 20ος αιώνας
subject: Αίγυπτος -- Ιστορία
subject: Έλληνες
subject: Αίγυπτος
subject: Αλεξάνδρεια
subject: Ευεργετισμός
subject: Καβάφης
subject: Βαμβακοπαραγωγή
subject: Τοσίτσας
subject: Μπενάκης
subject: Έξοδος
subject: Greeks
subject: Egypt
subject: Alexandria
subject: Beneficence
subject: Cavafy
subject: Cotton production
subject: Tositsas
subject: Benakis
subject: Exodus

description: Η μακραίωνη παρουσία των Ελλήνων στην Αίγυπτο αποτέλεσε ευεργετικό παράγοντα τόσο για τους Έλληνες, όσο και για τους Αιγύπτιους, αλλά και για το διεθνές στερέωμα. Ο 19ος και ο 20ος αιώνας με τις ρηξικέλευθες αλλαγές και για τον εκσυγχρονισμό που χαρακτήριζε την εποχή αυτή, δεν άφησε τους Έλληνες της Αιγύπτου εκτός προσκηνίου. Η παρουσία τους αποδείχθηκε πολυσχιδής και ευεργετική, με ενέργειες είτε ατομικές είτε μαζικές, αποτέλεσαν καθοριστικό παράγοντα στην βελτίωση των συνθηκών της ευρύτερης περιοχής, αλλά και στην κατάληξη του συμπεράσματος ότι οι Αιγυπτιώτες αποτέλεσαν μια μειονότητα, η οποία όχι μόνο σεβάστηκε τους οικοδεσπότες της, αλλά και τους ευεργέτησε παράλληλα