cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SN 1987A at the end of its second decade
Creators: name: Kjaer, Karina
name: Groeningsson, Per
name: Kotak, Rubina
name: Fransson, Claes
name: Leibundgut, Bruno
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: After nearly two decades at least five emission mechanisms can be found in SN 1987A. The ejecta continue to glow as a result of the radioactive decay of long-lived nuclei (mostly 44Ti), but is fading continuously because of the expansion and the reduced opacity. The nearly stationary rings around SN 1987A are still fluorescing from the recombination of matter originally excited by the soft X-ray emission from the shock breakout at explosion. The supernova shock reached the inner circumstellar ring about ten years ago and the forward shock is moving through the inner ring and leaves shocked material behind. This material is excited and accelerated. The reverse shock illuminates the fast-moving supernova ejecta as it catches up. And, finally light echoes in nearby interstellar matter can still be observed. We present here high resolution spectroscopy in the optical and integral-field spectroscopy in the near infrared of SN 1987A and its rings.
description: 8 pages, 6 figures, to be published in The Multicoloured Landscape of Compact Objects and their Explosive Origins, Proceedings of the Cefalu conference
The method of the kernel of the evolution equation in the theory of gravity
Creators: name: Gusev, Yuri Vladimirovich
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 53C21, 53C44, 58J05, 53C27, 83Fxx, 83F99

description: The method of covariant perturbation theory allowed for the computation of the kernel of the evolution equation on a spin Riemannian manifold. The proposed axiomatic definition of the covariant effective action introduces the universal scale parameter, with the length square dimensionality, into a dimensionless mathematical theory. It is shown that this geometrical result has a physical meaning of the action of field theory, including gravity. Two lowest tensor order terms of this functional are independent of a spin group and local. They reproduce the action of general relativity with the cosmological constant. The current value of the universal scale can be determined with the measured Hubble constant. This scale parameter considered as a physical variable can let us build cosmological theories axiomatically.
description: 10 pages, author's translation
Sex-typed traits, moral and interpersonal conflict, and conflict management strategies of women managers
Creators: name: Portello, Jacqueline Yvonne
Publisher: name: University of British Columbia
Year: 2011

description: The focus of this study was to determine whether sex-typed traits (instrumentality, expressiveness, androgyny) and type of conflict (interpersonal and moral) differentiate conflict management styles (dominating, integrating, and compromising) of women managers. The data were collected from 134 supervisors and managers (M age 40.1) from 12 branches of the federal government and 25 ministries and offices of the provincial government (British Columbia and the Yukon Territories). Each respondent completed the Bern Sex-Role Inventory and the Rahim Organizational Conflict Inventory-II. Two research questions were posed. The first question examined whether managers resolved conflicts differently according to their sex-role orientation, regardless of the type of conflict. It was hypothesized that (a) high-instrumental managers would report greater use of the dominating conflict handling style, compared with low-instrumental managers, and (b) high-expressive managers would report greater use of the compromising conflict handling style, compared with low-expressive managers. The second research question examined whether managers resolved conflicts differently according to their sex-role orientation and the type of conflict engaged in (interpersonal or moral). It was hypothesized that high-instrumental managers would report greater use of the integrating conflict management style for interpersonal conflict, whereas they would report greater use of the dominating style for moral conflict. Also, it was predicted that androgynous managers would report greater use of the integrating conflict management strategy for both types of conflict, compared with managers who score high on the undifferentiated dimension. One 2 X 2 X 2 (High vs. Low Instrumentality X High vs. Low Expressiveness X Conflict Type) MANOVA was employed to test the hypotheses. Conflict type was used as the repeated measures factor as it was assessed twice (interpersonal conflict and moral/ethical conflict). Results supported the hypothesis that high-instrumental managers report greater use of the dominating conflict management strategy, compared with low-instrumental managers, F (1,130) = 10.20, p <.002. Analyses also revealed that both high-expressive and high-instrumental managers reported greater use of the integrating conflict management strategy (F (1,130) = 9.26, p <.003, and F (1,130) = 6.21, p <.01, respectively). This finding supports the hypothesis that androgynous managers report greater use of the integrating conflict management strategy, compared with undifferentiated persons. MANOVA, however, found no significant main effects by conflict type for expressiveness or instrumentality, thus failing to support the remaining hypotheses. Based on the study's findings, implications for future research and application are discussed.
Το λεκανοπέδιο των Ιωαννίνων και η ευρύτερη περιοχή της Μολοσσίας στην Κεντρική Ηπειρο: αρχαιολογικά κατάλοιπα, οικιστική οργάνωση και οικονομία
Creators: name: Πλιάκου, Γεωργία Θ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Πασσαρών
Αρχαιολογία
Τοπογραφία
Passaron
Archaeology
Topography

description: Αντικείμενο της διατριβής είναι η μελέτη, παρουσίαση και ερμηνεία των αρχαιολογικών καταλοίπων του λεκανοπεδίου των Ιωαννίνων και η ένταξη των δεδομένων στο αρχαιολογικό υπόβαθρο της μείζονος περιφέρειας της αρχαίας Μολοσσίας στην Κεντρική Ηπειρο. Επιχειρείται καταρχήν η ανασύνθεση της τοπογραφίας, οικιστικής οργάνωσης και οικονομίας στην αυστηρά προσδιοριστική περιοχή του λεκανοπεδίου των Ιωαννίνων, με κύριο μεθοδολογικό εργαλείο τη μελέτη του αδημοσίευτου αρχαιολογικού υλικοιύ και την παράλλληλη αξιολόγηση-αξιοποίηση των δημοσιευμένων στοιχείων. Εξετάζονται θέματα όπως η μορφή και οργάνωση των οικισμών, οι οδικοί άξονες, οι παραγωγικές δραστηριότητες, η κεραμική, οι πολιτιστικές επαφές. Τα συμπεράσματα που προκύπτουν για την περιοχή του λεκανοπεδίου, επιχειρείται εν συνεχεία να συνδεθούν με ζητήματα ιστορικής τοπογραφίας της ευρύτερης περιοχής της Μολοσσίας. Γίνεται στο πλαίσιο αυτό μια κριτική θεώρηση και ερμηνεία των ακροπόλεων και επιχειρείται ο προσδιορισμός των ορίων της Μολοσσίας. Χρονικά η μελέτη καλύπτει το διάστημα από την αρχή της Πρώιμης Εποχής Σιδήρου έως τους ρωμαϊκούς χρόνους
description: The aim of this dissertations is to present and interpret the archaeological material from the basin of Ioannina and to incorporate it in the archaeological context of the wider area of Molosia, in central Epirus. The work seeks to fulfil a recomposition of topography, sattlement organisation and economy in the strictly determined region of Ioannina basin, through the study of the unpublished archaeological material and teh simultaneous evaluation of the already published data. Settlement pattern and organisation, toad network, productive activities, pottery and cultural contacts, are some of the subjects examined here. Conclusions concerning the region of the Ioannina basin is attempted to be connected with the histoircal topography of the wider area of Molossia. based on that, the study includes a critical review and interpretation of the numerous citadels and an attempt to determine the geographical limits of Molossia. The time span the thesis expands from the beginning of the Early Iron Age through the roman Period.
Transitioning to agroforestry at farm scale: my experience and learnings over a decade transitioning a typical Irish farm holding towards AF
Creators: name: Considine, William
Publisher: name: Zenodo
Year: 2018
Subjects: shelter; tree fodder; sheep; cattle

description: In this presentation given at the 2018 Farm Woodland Forum meeting, farmer William Considine, Nicharee Farm, Ireland, shares his experience and lessons learnt over the last 10 years of transitioning his farm into agroforestry.
Εκτίμηση της βιομάζας δασικών συστάδων με τη χρήση μεθόδων τηλεπισκόπησης και γεωγραφικών συστημάτων πληροφοριών
Creators: name: Μάκρας, Απόστολος Χρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Δάση κωνοφόρων
Δείκτες βλάστησης
Ikonos
Θεματικός χαρτογράφος Landsat
Coniferous forest
Landsat TM
Vegetation indices
Data preprocessing

description: Αντικείμενο της διατριβής αυτής, ήταν η αξιολόγηση μεθόδων Τηλεπισκόπησης στην εκτίμηση της δασικής βιομάζας. Στο πλαίσιο αυτό, διαφορετικά τηλεπισκοπικά δεδομένα (Landsat TM, IKONOS) χρησιμοποιήθηκαν και διαφορετικές τεχνικές ανάλυσης εφαρμόστηκαν. Για τα δεδομένα LandsatTM, πολύτιμη πηγή πληροφορίας αποδείχτηκε ο δίαυλος της μέσης υπέρυθρης ακτινοβολίας (ΤΜ5). Ακόμα, από μια μεγάλη ομάδα δεικτών βλάστησης και μετασχηματισμών που εφαρμόστηκαν, το καλύτερο αποτέλεσμα προήλθε από τον RDVIc (r2=0,82), έναν δείκτη που συμπεριλαμβάνει την μέση υπέρυθρη ακτινοβολία ως σταθμικό δείκτη.Αποδείχτηκε ακόμα ότι η επιλογή της κατάλληλης τεχνικής προεπεξεργασίας, ιδιαίτερα στο στάδιο της τοπογραφικής ομαλοποίησης της εικόνας, μπορεί να βελτιώσει τα αποτελέσματα σε ποσοστό άνω του 50%. Η χωρική ανάλυση της παγχρωματικής εικόνας του IKONOS, έδειξε ότι το μέτρο της ομοιογένειας, όταν εφαρμόζετε σε μέγεθος παραθύρου 23Χ23 εικονοστοιχείων, μπορεί να προβλέψει την μεταβλητότητα της βιομάζας με συντελεστή προσδιορισμού r2=0,55.
description: The objective of this thesis, was to evaluate the ability of Remote Sensing (RS)methods to estimate forest biomass. In this framework, different RS data (Landsat TM, IKONOS) was used and various techniques of analysis applied. For the Landsat Thematic Mapper (TM) image, valuable source of information, proved to be the middle infrared (MIR) band (TM5). Furthermore, from an extensive set of vegetation indices and transformation applied, the best results was achieved from RDVIc with r2=0,82, an index which incorporate MIR as a weighted factor. Also proved that the selection of appropriate preprocessing techniques, especially in the field of image topographic normalization, can improve the results for more than 50%. Spatial analysis of IKONOS panchromatic image, revealed that the measure of homogeneity, when applied with kernel size of 23X23 pixels can predict biomass variability with a coefficient of determination, r2=0.55
Measurements of azimuthal anisotropies of jet production in Pb+Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The azimuthal variation of jet yields in heavy-ion collisions provides information about the path-length dependence of the energy loss experienced by partons passing through the hot, dense nuclear matter known as the quark-gluon plasma. This paper presents the azimuthal anisotropy coefficients $v_2$, $v_3$, and $v_4$ measured for jets in Pb+Pb collisions at $\sqrt{s_{NN}} =$ 5.02 TeV using the ATLAS detector at the LHC. The measurement uses data collected in 2015 and 2018, corresponding to an integrated luminosity of 2.2 nb$^{-1}$. The $v_n$ values are measured as a function of the transverse momentum of the jets between 71 GeV and 398 GeV and the event centrality. A nonzero value of $v_2$ is observed in all but the most central collisions. The value of $v_2$ is largest for jets with lower transverse momentum, with values up to 0.05 in mid-central collisions. A smaller, nonzero value of $v_3$ of approximately 0.01 is measured with no significant dependence on jet $p_T$ or centrality, suggesting that fluctuations in the initial state play a small but distinct role in jet energy loss. No significant deviation of $v_4$ from zero is observed in the measured kinematic region.
description: 39 pages in total, author list starting page 24, 13 figures, 0 tables, submitted to PRC. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2020-09
Bounds for Codes by Semidefinite Programming
Creators: name: Musin, Oleg R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: Delsarte's method and its extensions allow to consider the upper bound problem for codes in 2-point-homogeneous spaces as a linear programming problem with perhaps infinitely many variables, which are the distance distribution. We show that using as variables power sums of distances this problem can be considered as a finite semidefinite programming problem. This method allows to improve some linear programming upper bounds. In particular we obtain new bounds of one-sided kissing numbers.
description: 20 pages
Utilization of innovative medical technologies in German inpatient care: does evidence matter?
Creators: name: Eckhardt, Helene
name: Felgner, Susanne
name: Dreger, Marie
name: Fuchs, Sabine
name: Ermann, Hanna
name: Rödiger, Hendrikje
name: Rombey, Tanja
name: Busse, Reinhard
name: Henschke, Cornelia
name: Panteli, Dimitra
Publisher: name: Springer Science and Business Media LLC
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
subject: medical devices
subject: evidence-based medicine
subject: value based health care
subject: evidence gap
subject: implementation science
subject: diffusion of innovation
subject: health technology assessment
subject: financial incentives
subject: disinvestment
subject: hospital
subject: Germany

description: Background: The reimbursement of new technologies in inpatient care is not always linked to a requirement for evidence-based evaluation of patient benefit. In Germany, every new technology approved for market was until recently eligible for reimbursement in inpatient care unless explicitly excluded. The aim of this work was (1) to investigate the type of evidence that was available at the time of introduction of 25 innovative technologies and how this evidence evolved over time, and (2) to explore the relationship between clinical evidence and utilization for these technologies in German inpatient care. Methods: This study combined different methods. A systematic search for evidence published between 2003 and 2017 was conducted in four bibliographic databases, clinical trial registries, resources for clinical guidelines, and health technology assessment—databases. Information was also collected on funding mechanisms and safety notices. Utilization was measured by hospital procedures captured in claims data. The body of evidence, funding and safety notices per technology were analyzed descriptively. The relationship between utilization and evidence was explored empirically using a multilevel regression analysis. Results: The number of included publications per technology ranges from two to 498. For all technologies, non-comparative studies form the bulk of the evidence. The number of randomized controlled clinical trials per technology ranges from zero to 19. Some technologies were utilized for several years without an adequate evidence base. A relationship between evidence and utilization could be shown for several but not all technologies. Conclusions: This study reveals a mixed picture regarding the evidence available for new technologies, and the relationship between the development of evidence and the use of technologies over time. Although the influence of funding and safety notices requires further investigation, these results re-emphasize the need for strengthening market approval standards and HTA pathways as well as approaches such as coverage with evidence development.
Negative differential conductance induced by electronic correlation in a double quantum-dot molecule
Creators: name: Lara, Gustavo A.
name: Orellana, P. A.
name: Anda, E. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electron tunneling through a two stage Kondo system constituted by a double quantum-dot molecule side coupled to a quantum wire, under the effect of a finite external potential is studied. We found that $I$-$V$ characteristic shows a negative differential conductance region induced by the electronic correlation. This phenomenon is a consequence of the properties of the two stage Kondo regime under the effect of an external applied potential that takes the system out of equilibrium. The problem is solved using the mean-field finite-$U$ slave-boson formalism.
description: 7 pages, 6 figures. Submitted to PRB
Effects of Two Energy Scales in Weakly Dimerized Antiferromagnetic Quantum Spin Chains
Creators: name: Brühl, A.
name: Wolf, B.
name: Pashchenko, V.
name: Anton, M.
name: Gross, C.
name: Assmus, W.
name: Valenti, R.
name: Glocke, S.
name: Klümper, A.
name: Saha-Dasgupta, T.
name: Rahaman, B.
name: Lang, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By means of thermal expansion and specific heat measurements on the high-pressure phase of (VO)$_2$P$_2$O$_7$, the effects of two energy scales of the weakly dimerized antiferromagnetic $S$ = 1/2 Heisenberg chain are explored. The low energy scale, given by the spin gap $Δ$, is found to manifest itself in a pronounced thermal expansion anomaly. A quantitative analysis, employing T-DMRG calculations, shows that this feature originates from changes in the magnetic entropy with respect to $Δ$, $\partial S^{m}/ \partial Δ$. This term, inaccessible by specific heat, is visible only in the weak-dimerization limit where it reflects peculiarities of the excitation spectrum and its sensitivity to variations in $Δ$.
description: 4 pages, 4 figures now identical with finally published version
AtomSets -- A Hierarchical Transfer Learning Framework for Small and Large Materials Datasets
Creators: name: Chen, Chi
name: Ong, Shyue Ping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Predicting materials properties from composition or structure is of great interest to the materials science community. Deep learning has recently garnered considerable interest in materials predictive tasks with low model errors when dealing with large materials data. However, deep learning models suffer in the small data regime that is common in materials science. Here we leverage the transfer learning concept and the graph network deep learning framework and develop the AtomSets machine learning framework for consistent high model accuracy at both small and large materials data. The AtomSets models can work with both compositional and structural materials data. By combining with transfer learned features from graph networks, they can achieve state-of-the-art accuracy from using small compositional data (<400) to large structural data (>130,000). The AtomSets models show much lower errors than the state-of-the-art graph network models at small data limits and the classical machine learning models at large data limits. They also transfer better in the simulated materials discovery process where the targeted materials have property values out of the training data limits. The models require minimal domain knowledge inputs and are free from feature engineering. The presented AtomSets model framework opens new routes for machine learning-assisted materials design and discovery.
Ασφάλεια πληροφοριακών συστημάτων σε συνεργατικά περιβάλλοντα εφαρμογών με βάση το διαδίκτυο
Creators: name: Μάττας, Ανδρέας Κ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Συνεργατικά περιβάλλοντα
Ελεγχος προσπέλασης
Collaborative applications
Administration

description: Αντικείμενο της παρούσας διατριβής είναι η μελέτη θεμάτων ασφαλείας πληροφορικών συστημάτων που λειτουργούν με βάση το διαδίκτυο και ειδικότερα η διαχείριση συστημάτων ελέγχου προσπέλασης σε συνεργατικά περιβάλλοντα εφαρμογών. Στα πλαίσια αυτής της διατριβής εξετάζονται τα προβλήματα ασφάλειας των κατανεμημένων πληροφοριακών συστημάτων(ιδιαίτερα σε ότι αφορά τον έλεγχο προσπέλασης πληροφοριακών πόρων), καθώς και των διαδικτυακών εφαρμογών που εκτελούνται σε αυτά
description: Application security is characterized by a significant complexing, due to the large number of variations and combinations of objects and operations to be protected. Thus, there is a reed for data, process and context parameters, like time and location, to be combined into a security model that ensures correct decision-making for access. In this work a new paradigm of dynamic and decentralized administrative of access control for a wide-range of collaborative applications and aims to provide fine-grained and dynamic administration of authorizations
Galaxy-lens determination of $H_0$: the effect of the ellipse+shear modeling assumption
Creators: name: Gomer, Matthew R.
name: Williams, Liliya L. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy lenses are frequently modeled as an elliptical mass distribution with external shear and isothermal spheres to account for secondary and line-of-sight galaxies. There is statistical evidence that some fraction of observed quads are inconsistent with these assumptions, and require a dipole-like contribution to the mass with respect to the light. Simplifying assumptions about the shape of mass distributions can lead to the incorrect recovery of parameters such as $H_0$. We create several tests of synthetic quad populations with different deviations from an elliptical shape, then fit them with an ellipse+shear model, and measure the recovered values of $H_0$. Kinematic constraints are not included. We perform two types of fittings -- one with a single point source and one with an array of sources emulating an extended source. We carry out two model-free comparisons between our mock quads and the observed population. One result of these comparisons is a statistical inconsistency not yet mentioned in the literature: the image distance ratios with respect to the lens center of observed quads appear to span a much wider range than those of synthetic or simulated quads. Bearing this discrepancy in mind, our mock populations can result in biases on $H_0$ $\sim10\%$.
description: 15 pages, 5 figures; to be published in MNRAS
First Surface-resolved Results with the IOTA Imaging Interferometer: Detection of Asymmetries in AGB stars
Creators: name: Ragland, S.
name: Traub, W. A.
name: Berger, J. -P.
name: Danchi, W. C.
name: Monnier, J. D.
name: Willson, L. A.
name: Carleton, N. P.
name: Lacasse, M. G.
name: Millan-Gabet, R.
name: Pedretti, E.
name: Schloerb, F. P.
name: Cotton, W. D.
name: Townes, C. H.
name: Brewer, M.
name: Haguenauer, P.
name: Kern, P.
name: Labeye, P.
name: Malbet, F.
name: Malin, D.
name: Pearlman, M.
name: Perraut, K.
name: Souccar, K.
name: Wallace, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have measured non-zero closure phases for about 29% of our sample of 56 nearby Asymptotic Giant Branch (AGB) stars, using the 3-telescope Infrared Optical Telescope Array (IOTA) interferometer at near-infrared wavelengths (H band) and with angular resolutions in the range 5-10 milliarcseconds. These nonzero closure phases can only be generated by asymmetric brightness distributions of the target stars or their surroundings. We discuss how these results were obtained, and how they might be interpreted in terms of structures on or near the target stars. We also report measured angular sizes and hypothesize that most Mira stars would show detectable asymmetry if observed with adequate angular resolution.
description: Accepted by ApJ
Challenges in Digital Twin Development for Cyber-Physical Production Systems
Creators: name: Park, Heejong
name: Easwaran, Arvind
name: Andalam, Sidharta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The recent advancement of information and communication technology makes digitalisation of an entire manufacturing shop-floor possible where physical processes are tightly intertwined with their cyber counterparts. This led to an emergence of a concept of digital twin, which is a realistic virtual copy of a physical object. Digital twin will be the key technology in Cyber-Physical Production Systems (CPPS) and its market is expected to grow significantly in the coming years. Nevertheless, digital twin is still relatively a new concept that people have different perspectives on its requirements, capabilities, and limitations. To better understand an effect of digital twin's operations, mitigate complexity of capturing dynamics of physical phenomena, and improve analysis and predictability, it is important to have a development tool with a strong semantic foundation that can accurately model, simulate, and synthesise the digital twin. This paper reviews current state-of-art on tools and developments of digital twin in manufacturing and discusses potential design challenges.
description: This is a post-peer-review, pre-copyedit version of an article published in Cyber Physical Systems. Model-Based Design. The final authenticated version is available online at: http://dx.doi.org/10.1007/978-3-030-23703-5_2
Η ομιλητική παραγωγή στην εκκλησία της Ρουμανίας κατά το β' μέσω του 20ου αιώνα: ερμηνευτικές αρχές
Creators: name: Preda, Ionel-Sabin
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Τυπολογία
Κυριακοδρόμιο
Πατριάρχης Ιουστινιανός
Typology
Kyriakodromio
Justinian the Patriarch

description: Η διατριβή ασχολείται με μία δύσκολη περίοδο της Εκκλησίας της Ρουμανίας - τη κομμουνιστική περίοδο. Χωρίζεται σε τρία μέρη : ένα ιστορικό, ένα αναλυτικό και ένα συμπερασματικό. Στο πρώτο μέρος παρουσιάζεται η κατάσταση της Ρουμανικής Εκκλησίας στο β' μισό του 20ου αιώνα, το πρόσωπο του πατριάρχη Ιουστιανιανού και τα μέτρα που έλαβε για να σώσει την εκκλησία. Στο δεύτερο αναλύονται πέντε ομιλητές, ο πατής Cleopa Ilie, ο μοναχός Nicolae Steinhardt, ο καθ. Constantin Galeriu, ο μητροπολίτης Antonie Plamadeala και ο τυφλός μοναχός Teofil Paraian. Το τελευταίο μέρος συγκρίνει τους πέντε ομιλητές στην προσπάθεια μια ορθόδοξης θεώρησης του ερμηνευτικού ζητήματος
description: The present ThD work deals with the hermeneutical problem in a very difficult period of the Romanian Church - the communist period. There are three parts : an historical part, an analytical part and a comparative part. In the 1st chapter the author presents the situation of the Romanian Church in the 2nd part of XX century, the personality of the patriarch Justinian and the legal measures he addopted in order to save the Church. In the 2nd chapter the author analyses five important preachers: the archimandrite Cleopa Ilie, the intelechial monk NiColae Steinhardt, the professor Constantin Galerin, the metropolitan Antonie Plamadeala, and the blind monk Teofil Paraian. The last chapter compares the hermeneutical principles of the five preachers, in order to define an orthodox approach of the Bible
Fractional Brownian motion in superharmonic potentials and non-Boltzmann stationary distributions
Creators: name: Guggenberger, Tobias
name: Chechkin, Aleksei
name: Metzler, Ralf
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the stochastic motion of particles driven by long-range correlated fractional Gaussian noise in a superharmonic external potential of the form $U(x)\propto x^{2n}$ ($n\in\mathbb{N}$). When the noise is considered to be external, the resulting overdamped motion is described by the non-Markovian Langevin equation for fractional Brownian motion. For this case we show the existence of long time, stationary probability density functions (PDFs) the shape of which strongly deviates from the naively expected Boltzmann PDF in the confining potential $U(x)$. We analyse in detail the temporal approach to stationarity as well as the shape of the non-Boltzmann stationary PDF. A typical characteristic is that subdiffusive, antipersistent (with negative autocorrelation) motion tends to effect an accumulation of probability close to the origin as compared to the corresponding Boltzmann distribution while the opposite trend occurs for superdiffusive (persistent) motion. For this latter case this leads to distinct bimodal shapes of the PDF. This property is compared to a similar phenomenon observed for Markovian L{é}vy flights in superharmonic potentials. We also demonstrate that the motion encoded in the fractional Langevin equation driven by fractional Gaussian noise always relaxes to the Boltzmann distribution, as in this case the fluctuation-dissipation theorem is fulfilled.
description: 18 pages, 6 figures, IOP LaTeX
Pressure dependence of the superconducting transition temperature in C$_6$Yb and C$_6$Ca
Creators: name: Smith, Robert P.
name: Kusmartseva, Anna
name: Ko, Yuen T. C.
name: Saxena, Siddharth S
name: Akrap, Ana
name: Forro, Laszlo
name: Laad, Mukul
name: Weller, Thomas E.
name: Ellerby, Mark
name: Skipper, Neal T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have studied the evolution, with hydrostatic pressure, of the recently discovered superconductivity in the graphite intercalation compounds C$_6$Yb and C$_6$Ca. We present pressure-temperature phase diagrams, for both superconductors, established by electrical transport and magnetization measurements. In the range 0-1.2 GPa the superconducting transition temperature increases linearly with pressure in both materials with $dT_c/dP = +0.39 K/GPa$ and $dT_c/dP = +0.50 K/GPa$ for C$_6$Yb and C$_6$Ca respectively. The transition temperature in C$_6$Yb, which has beenmeasured up to 2.3 GPa, reaches a peak at around 1.8 GPa and then starts to drop. We also discuss how this pressure dependence may be explained within a plasmon pairing mechanism.
description: 4 pages, 3 figures
Aggregates of clusters in the Gaia data
Creators: name: Piecka, M.
name: Paunzen, E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The precision of the parallax measurements by Gaia is unprecedented. As of Gaia Data Release 2, the number of known nearby open clusters has increased. Some of the clusters appear to be relatively close to each other and form aggregates, which makes them interesting objects to study. We study the aggregates of clusters which share several of the assigned member stars in relatively narrow volumes of the phase space. Using the most recent list of open clusters, we compare the cited central parallaxes with the histograms of parallax distributions of cluster aggregates. The aggregates were chosen based on the member stars which are shared by multiple clusters. Many of the clusters in the aggregates have been assigned parallaxes which coincide with the histograms. However, clusters that share a large number of members in a small volume of the phase space display parallax distributions which do not coincide with the values from the literature. This is the result of ignoring a possibility of assigning multiple probabilities to a single star. We propose that this small number of clusters should be analysed anew.
description: 14 pages, 7 figures, 2 tables, published in A&A
On Cardy states in the (2,2,2,2) Gepner model
Creators: name: Sarkissian, Gor
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study Cardy states in the (2,2,2,2) Gepner model from the algebraic and geometric sides. We present the full list of primaries of this model together with their characters. The effects of fixed point resolution are analyzed. Annulus partition function between various Cardy states are calculated. Using the equivalent description in terms of $T^4/Z_4$ the corresponding geometrical realization is partially found.
description: latex, 35 pages, minor typos corrected, references added
Density Perturbations for Running Cosmological Constant
Creators: name: Fabris, Julio C.
name: Shapiro, Ilya L.
name: Sola, Joan
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of density and metric perturbations is investigated for the previously developed model where the decay of the vacuum energy into matter (or vice versa) is due to the renormalization group (RG) running of the cosmological constant (CC) term. The evolution of the CC depends on the single parameter ν, which characterizes the running of the CC produced by the quantum effects of matter fields of the unknown high energy theory below the Planck scale. The sign of νindicates whether bosons or fermions dominate in the running. The spectrum of perturbations is computed assuming an adiabatic regime and an isotropic stress tensor. Moreover, the perturbations of the CC term are generated from the simplest covariant form suggested by the RG model under consideration. The corresponding numerical analysis shows that for ν>0 there is a depletion of the matter power spectrum at low scales (large wave numbers) as compared to the standard LCDM model, whereas for ν<0 there is an excess of power at low scales. We find that the LSS data rule out the range |ν|> 10^{-4} while the values |ν|< 10^{-6} look perfectly acceptable. For ν<0 the excess of power at low scales grows rapidly and the bound is more severe. From the particle physics viewpoint, the values |ν|\sim 10^{-6} correspond to the ``desert'' in the mass spectrum above the GUT scale M_X\sim 10^{16} GeV. Our results are consistent with those obtained in other dynamical models admitting an interaction between dark matter and dark energy. We find that the matter power spectrum analysis is a highly efficient method to discover a possible scale dependence of the vacuum energy.
description: LaTeX, 21 pages, 5 figures. Extended discussion, references added. Version accepted in JCAP
Equation of state constraints from multi-messenger observations of neutron star mergers
Creators: name: Bauswein, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The very first detection of gravitational waves from a neutron star binary merger, GW170817, exceeded all expectations. The event was relatively nearby, which may point to a relatively high merger rate. It was possible to extract finite-size effects from the gravitational-wave signal, which constrains the nuclear equation of state. Also, an electromagnetic counterpart was detected at many wavebands from radio to gamma rays marking the begin of a new multi-messenger era involving gravitational waves. We describe how multi-messenger observations of GW170817 are employed to constrain the nuclear equation of state. Combining the information from the optical emission and the mass measurement through gravitational waves leads to a lower limit on neutron star radii. According to this conservative analysis, which employs a minimum set of assumptions, the radii of neutron stars with typical masses should be larger than about 10.7~km. This implies a lower limit on the tidal deformability of about 210, while much stronger lower bounds are not supported by the data of GW170817. The multi-messenger interpretation of GW170817 rules out very soft nuclear matter and complements the upper bounds on NS radii which are derived from the measurement of finite-size effects during the pre-merger phase. We highlight the future potential of multi-messenger observations and of GW measurements of the postmerger phase for constraining the nuclear equation of state. Finally, we propose an observing strategy to maximize the scientific yield of future multi-messenger observations.
description: 26 pages, 8 figures, contribution to "Special Issue on Nuclear astrophysics in the new era of multi-messenger astronomy", Annals of Physics
Financial Characteristics of U.S. Farms, January 1, 1989: A Summary
Creators: name: Morehart, Mitchell J.
name: Johnson, James D.
name: Banker, David E.
name: Morehart, Mitchell J.
name: Johnson, James D.
name: Banker, David E.
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural Finance
Financial Economics

description: Despite the 1988 drought, farm financial conditions remained similar those of 1987, according to this report summarizing the latest information from the Farm Costs and Returns Survey (FCRS) on the financial performance of farmers. Average farm profits were modestly higher, but fewer farms were profitable. More farms had no outstanding liabilities, and fewer had high debt compared with assets. The FCRS provides an annual source of detailed information on the financial characteristics, tenure, business, organization, capital expenditures, production expenditures, receipts, resource base, and production practices of U.S. farms and ranches.
Kicked Bose-Hubbard systems and kicked tops -- destruction and stimulation of tunneling
Creators: name: Strzys, M P
name: Graefe, E M
name: Korsch, H J
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a two-mode approximation, Bose-Einstein condensates (BEC) in a double-well potential can be described by a many particle Hamiltonian of Bose-Hubbard type. We focus on such a BEC whose interatomic interaction strength is modulated periodically by $δ$-kicks which represents a realization of a kicked top. In the (classical) mean-field approximation it provides a rich mixed phase space dynamics with regular and chaotic regions. By increasing the kick-strength a bifurcation leads to the appearance of self-trapping states localized on regular islands. This self-trapping is also found for the many particle system, however in general suppressed by coherent many particle tunneling oscillations. The tunneling time can be calculated from the quasi-energy splitting of the corresponding Floquet states. By varying the kick-strength these quasi-energy levels undergo both avoided and even actual crossings. Therefore stimulation or complete destruction of tunneling can be observed for this many particle system.
Lagomorpha Brandt 1855
Creators: name: Jo, Yeong-Seok
name: Baccus, John T.
name: Koprowski, John L.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Lagomorpha

description: ORDER LAGOMORPHA Brandt, 1855   Mammalogists previously united Lagomorpha with Rodentia as a single order (Carleton & Musser 2005). These two orders were frequently considered as a single cohort (Glires; Landry 1999) that diverged into two orders at the Cretaceous-Paleogene boundary (Huchon et al. 2002).
The order Lagomorpha in Korea contains two families, two genera and three species. Lagomorphs in the Family Ochotonidae only inhabit extreme northern Korea (southern limit is Mt. Myohyang), whereas, members of the Leporidae commonly occur throughout the Korean Peninsula.
description: Published as part of Jo, Yeong-Seok, Baccus, John T. & Koprowski, John L., 2018, Mammals of Korea: a review of their taxonomy, distribution and conservation status, pp. 1-216 in Zootaxa 4522 (1) on page 10, DOI: 10.11646/zootaxa.4522.1.1, http://zenodo.org/record/2610198
Ανίχνευση αυτοαντισωμάτων κατά των αντιγόνων ΒΡ180 και ΒΡ230 ως μέθοδος διάγνωσης και παρακολούθησης του πομφολυγώδους πεμφιγοειδούς
Creators: name: Πατσατσή, Αικατερίνη Α.
Publisher: name: Aristotle University of Thessaloniki
Year: 2008
Subjects: Υποεπιδερμικές πομφολυγώδεις δερματοπάθειες
BP180
Subepidermal bullous diseases

description: Η μελέτη αυτή αποσκοπεί στη διερεύνηση της σχέσης των κυκλοφορούντων αυτοαντισωμάτων έναντι των αντιγόνων ΒΡ180 και ΒΡ230 του ΒΡ230 του πομφολογώδους πεμφιγοειδούς(ΠΠ) με τη δραστηριότητα της νόσου και στην αξιολόγηση της χρησιμότητας της ανοσοενζυμικής μεθόδου ELISA στη διάγνωση και παρακολούθηση του ΠΠ. Μελετήθηκαν συνολικά 40 ασθενείς με πρωτοεμφανιζόμενο ΠΠ, 15 υγιείς μάρτυρες και 15 ασθενείς με κοινή πέμφιγα. Επίσης μελετήθηκε υγρό από 13 πομφόλυγες ασθενών με ΠΠ και από 7 πομφόλυγες άλλης αιτιολογίας. Από τα αποτελέσματα των μετρήσεων, πιστοποιείται η ευαισθησία και η χρησιμότητα της ανίχνευσης των κυκλοφορούντων αυτοαντισωμάτων με ELISA στη διάγνωση του ΠΠ, υπογραμμίζεται η σημασία του ελέγχου του υγρού πομφόλυγας με την ίδια μέθοδο και επισημαίνεται η προγνωστική αξία της μεθόδου. Με την παρακολούθηση των επιπέδων των κυκλοφορούντων αυτοανοσημάτων μπορούμε να ελέγξουμε τις υποτροπές της νόσου, δυνατότητα που δεν μας παρέχουν οι έως τώρα εφαρμοζόμενες διαγνωστικές τεχνικές
description: The aim of this study is to investigate the possible relation of circulating autoantibodies against BP180 and BP230 with the activity of the disease and to evaluate the usefulness of the immunoenzymic method ELISA for diagnosis and follow up of patients with BP. Fortly patients with newly diagnosed BP were enrolled. Fifteen healthy volunteers and fifteen patients with pemphigur vulgaris served blister fluids of other eahology were measured also. In our study, detection of anti BP180 and antiBP230 autoantibodies in serum and in blister fluid proved to be a sensitive diagnostic method. The most important conclusion is that BP180 ELISA could be a method with prognostic value, able to contribute significantly to the follow up of patients with bullous pemphigoid
Rough translation of file 030_B (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-160815-06: rough translation (30 second to 3-4 minute chunks) of file 030_B (tape 30, side B) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from 15:12 to 39:28; no transcription in this session, translation only. Due to re-numbering, tape 030_B has been assigned to the CLA item number LA256.030, audio file LA256.030B.
Dynamics of Low-Density Ultracold Rydberg Gases
Creators: name: Day, J. O.
name: Brekke, E.
name: Walker, T. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Population dynamics in weakly-excited clouds of ultracold $^{87}$Rb Rydberg atoms were studied by means of trap loss, fluorescence detection, and state dependent stimulated emission. Rydberg atoms were excited to various nl Rydberg states via continuous two-photon excitation from a magneto-optical trap. A stimulated emission probe laser was then used to bring the Rydberg atoms down to the 6P$_{3/2}$ state, allowing state-dependent detection of the Rydberg atoms. Measurements of trap loss and fluorescent emission reveal information about the evolution of the Rydberg populations. In particular, population in the initial Rydberg state quickly transfers to other Rydberg states by a non-collisional mechanism, likely superradiant emission. The trap-loss measurements are consistent with black-body ionization as the dominant loss mechanism.
description: 9 pages, 7 figures
Bad vibrations: Quantum tunnelling in the context of SARS-CoV-2 infection
Creators: name: Adams, Betony
name: Sinayskiy, Ilya
name: van Grondelle, Rienk
name: Petruccione, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The SARS-CoV-2 pandemic has added new urgency to the study of viral mechanisms of infection. But while vaccines offer a measure of protection against this specific outbreak, a new era of pandemics has been predicted. In addition to this, COVID-19 has drawn attention to post-viral syndromes and the healthcare burden they entail. It seems integral that knowledge of viral mechanisms is increased through as wide a research field as possible. To this end we propose that quantum biology might offer essential new insights into the problem, especially with regards to the important first step of virus-host invasion. Research in quantum biology often centres around energy or charge transfer. While this is predominantly in the context of photosynthesis there has also been some suggestion that cellular receptors such as olfactory or neural receptors might employ vibration assisted electron tunnelling to augment the lock-and-key mechanism. Quantum tunnelling has also been observed in enzyme function. Enzymes are implicated in the invasion of host cells by the SARS-CoV-2 virus. Receptors such as olfactory receptors also appear to be disrupted by COVID-19. Building on these observations we investigate the evidence that quantum tunnelling might be important in the context of infection with SARS-CoV-2. We illustrate this with a simple model relating the vibronic mode of, for example, a viral spike protein to the likelihood of charge transfer in an idealised receptor. Our results show a distinct parameter regime in which the vibronic mode of the spike protein enhances electron transfer. With this in mind, novel therapeutics to prevent SARS-CoV-2 transmission could potentially be identified by their vibrational spectra.
description: 32 pages, 7 figures
Bursting and Quenching in Massive Galaxies without Major Mergers or AGNs
Creators: name: Birnboim, Yuval
name: Dekel, Avishai
name: Neistein, Eyal
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We simulate the buildup of galaxies by spherical gas accretion through dark matter haloes, subject to the development of virial shocks. We find that a uniform cosmological accretion turns into a rapidly varying disc buildup rate. The generic sequence of events (Shocked-Accretion Massive Burst & Shutdown: SAMBA) consists of four distinct phases: a) continuous cold accretion while the halo is below a threshold mass Msh~10^12Mo, b) tentative quenching of gas supply for ~2Gyr, starting once the halo is ~Msh and growing a rapidly expanding shock, c) a massive burst due to the big crunch of ~10^11Mo gas in \~0.5Gyr, when the heated gas cools and joins new infalling gas, and d) a long-term shutdown, enhanced by a temporary shock instability in late SAMBAs, those that quench at z~2, burst at z~1 and end up quenched in 10^12-13Mo haloes today. These events occur at all redshifts in galaxies of baryonic mass \~10^11Mo and involve a substantial fraction of this mass. They arise from rather smooth accretion, or minor mergers, which, unlike major mergers, may leave the disc intact while being built in a rapid pace. The early bursts match observed maximum starbursting discs at z>~2, predicted to reside in
description: 16 pages, 12 figures, submitted to MNRAS