cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Does High[Plasma]-Beta Dynamics "Load" Active Regions?
Creators: name: McIntosh, Scott W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using long-duration observations in the He II 304 Angstrom passband of the Solar and Heliospheric Observatory (SOHO) Extreme-ultraviolet Imaging Telescope (EIT) we investigate the spatial and temporal appearance of impulsive intensity fluctuations in the pixel light curves. These passband intensity fluctuations come from plasma emitting in the chromosphere, transition region and lowest portions of the corona. We see that they are spatially tied to the supergranular scale and that their rate of occurrence is tied to the unsigned imbalance of the magnetic field in which they are observed. The signature of the fluctuations (in space and time) is consistent with their creation by magnetoconvection forced reconnection that is driven by the flow field in the high-beta plasma. The signature of the intensity fluctuations around an active region suggest that the bulk of the mass and energy supplied into the active region complex observed in the hotter coronal plasma is supplied by this process, dynamically forcing the looped structure from beneath.
description: 13 pages, 4 figures, In press ApJL
When is negativity not a problem for the ultra-discrete limit?
Creators: name: Kasman, Alex
name: Lafortune, Stephane
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: The `ultra-discrete limit' has provided a link between integrable difference equations and cellular automata displaying soliton like solutions. In particular, this procedure generally turns strictly positive solutions of algebraic difference equations with positive coefficients into corresponding solutions to equations involving the "Max" operator. Although it certainly is the case that dropping these positivity conditions creates potential difficulties, it is still possible for solutions to persist under the ultra-discrete limit even in their absence. To recognize when this will occur, one must consider whether a certain expression, involving a measure of the rates of convergence of different terms in the difference equation and their coefficients, is equal to zero. Applications discussed include the solution of elementary ordinary difference equations, a discretization of the Hirota Bilinear Difference Equation and the identification of integrals of motion for ultra-discrete equations.
Karte vom Nordsudan
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 17 (2006): Der Antike Sudan
Hoyle-Lyttleton accretion on to black hole accretion disks with super-Eddington luminosity for dusty gas
Creators: name: Erika, Ogata
name: Ken, Ohsuga
name: Hidenobu, Yajima
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the Hoyle-Lyttleton accretion of dusty-gas for the case where the central source is the black hole accretion disk. By solving the equation of motion taking into account the radiation force which is attenuated by the dust absorption, we reveal the steady structure of the flow around the central object. We find that the mass accretion rate tends to increase with an increase of the optical thickness of the flow and the gas can accrete even if the disk luminosity exceeds the Eddington luminosity for the dusty-gas, since the radiation force is weakened by the attenuation via the dust absorption. When the gas flows in from the direction of the rotation axis for the disk with $Γ^{'}=3.0$, the accretion rate is about 93% of the Hoyle-Lyttleton accretion rate if $τ_{\rm{HL}}=3.3$ and zero for $τ_{\rm{HL}}=1.0$, where $Γ^{'}$ is the Eddington ratio for the dusty-gas and $τ_{\rm{HL}}$ is the typical optical thickness of the Hoyle-Lyttleton radius. Since the radiation flux in the direction of disk plane is small, the radiation force tends not to prevent gas accretion from the direction near the disk plane. For $τ_{\rm{HL}}=3.3$ and $Γ^{'}=3.4$, although the accretion is impossible in the case of $Θ=0$, the accretion rate is 28% of the Hoyle-Lyttleton one in the case of $Θ=90$, where $Θ$ is the angle between the direction the gas is coming from and the rotation axis of the disk. We also obtain relatively high accretion luminosity that is realized when the accretion rate of the disk onto the BH is consistent with that via the Hoyle-Lyttleton mechanism taking into account the effect of radiation. This implies the intermediate-mass black holes moving in the dense dusty-gas are identified as luminous objects in the infrared band.
description: 14 pages, 8 figures, accepted for publication in PASJ
Mott and Band Insulator Transitions in the Binary Alloy Hubbard Model
Creators: name: Paris, N.
name: Baldwin, A.
name: Scalettar, R. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use determinant Quantum Monte Carlo simulations and exact diagonalization to explore insulating behavior in the Hubbard model with a bimodal distribution of randomly positioned local site energies. From the temperature dependence of the compressibility and conductivity, we show that gapped, incompressible Mott insulating phases exist away from half filling when the variance of the local site energies is sufficiently large. The compressible regions around this Mott phase are metallic only if the density of sites with the corresponding energy exceeds the percolation threshold, but are Anderson insulators otherwise.
description: 5 pages, 5 figures
GAME-BASED LEARNING: LEVERAGING DIGITAL TECHNOLOGY SIMULATIONS FOR EDUCATIONAL IMPACT
Creators: name: RIF'IY QOMARRULLAH
name: GABRIEL PAYONG
name: DANIEL WOMSIWOR
Publisher: name: Zenodo
Year: 2023
Subjects: Game-Based Learning; Quasi-Experimental Research; Elementary Education.

description: Abstract

This research documents the impact of implementing Game-Based Learning (GBL) through quasi-experimental methods on 40 fifth-grade students in primary school. With the aim of understanding the influence of GBL on engagement and learning outcomes, we randomly divided students into two groups: a control group without GBL implementation and an experimental group with GBL implementation. The research instruments included pre-tests, the implementation of GBL through educational games, and post-tests. The collected data were analyzed using descriptive and inferential statistical techniques. The results of the study indicate that the experimental group participating in GBL showed a significant increase in engagement compared to the control group. The simulations within the games not only enhanced the understanding of concepts but also fostered problem-solving skills and the practical application of knowledge. Data analysis, employing an independent t-test, confirmed the statistical significance of these differences. The implementation of GBL through quasi-experimental methods at the elementary school level provides empirical evidence that the use of simulations in games has a positive impact on learning outcomes. The implication is the necessity of considering GBL integration into the curriculum to enhance the quality of education. The research supports the idea that GBL not only improves engagement but also serves as an effective tool for developing critical skills and creativity in students. Suggestions for further research include exploring variations in GBL implementation methods, increasing sample sizes, and considering additional factors in data analysis. Involving teachers in the planning and implementation process can strengthen the positive impact of GBL in the context of elementary education. The study demonstrates that GBL not only creates enjoyable learning experiences but also makes a tangible contribution to students' progress in terms of knowledge and skills.
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 17 (2006): Der Antike Sudan
Antaganides erycinus Branger 2024, n. comb.
Creators: name: Branger, Patrick
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Nautilida
Pseudonautilidae
Antaganides
Antaganides erycinus

description: Antaganides cf. erycinus (Tagliarini, 1901), n. comb.
(Figs 3A1-A3; 13A, B)
Nautilus erycinus Tagliarini, 1901: tav. V, pl. 2-3-4-5.
? Cenoceras sp. 1 aff. bradfordensis – Chirat 1997: pl. 6, fig. 4a, b.
? Cenoceras aff. bradfordensis – Chirat 1997:pl. 14, figs 4-5, pl. 15, fig. 1.
MATERIAL EXAMINED. — France • 2 specimens; Nouvelle-Aquitaine, Parthenay, Sainte-Ouenne, Viaduc de l’Égray; [46°25’25”N, 0°27’28”W]; Niortense Zone; level 32; Upper Bajocian; Patrick Branger leg.; MBAN; 2023.PB.N117 (Fig. 3A1-A3), 2023.PB.N130 • 2 specimens; Nouvelle-Aquitaine, Niort; [46°18’25”N, 0°27’42”W]; Niortense Zone; Upper Bajocian; Patrick Branger leg.; MBAN; 2023. PB.N129 and 2023.PB.N148 (Fig. 13A, B).
OCCURRENCE. — Upper Bajocian, Niortense Zone, Polygyralis Subzone.
M EASUREMENTS. — See Table 1.
DESCRIPTION
Small sized nautilus, maximum diameter 55 mm, the diameters of specimens 2023.PB.N117 (Fig. 3A1-A3) and 2023.PB.N130 are 52 and 54 mm respectively. Shell compressed on the last whorl with an oval section except on the body-chamber where the venter flattens. Height rapidly increasing. Juvenile whorls have a subrectangular section with flattened flanks except at the very end of the body-chamber where they are slightly inflated, boarding a closed umbilicus. The aperture is well preserved on 2023. PB.N117 (Fig. 3A1-A3) and is similar to that of Pseudaganides. Suture line (Fig.4A) has wide shallow lateral and ventral lobes. The siphuncle is small in diameter, located on the ventral half of the septa, at about one third of the median height of the whorl. On 2023.PB.N129, the two last septa of the phragmocone are approximated, indicating an adult stage. This specimen has also kept the muscle scar on its left side (Fig. 13A).
REMARKS
The cited specimens are similar to the examples published under the name Nautilus bradfordensis (Crick, 1898) by Chirat (1997) from the Garantiana and Parkinsoni Zones that also belong to Upper Bajocian. The type specimen of Antaganides erycinus n. comb. is a little older and occured within the dark grey limestone formation (calcare grigio scuro) near Erice, Western Sicily, whose age is Lower Dogger according to Tagliarini (1901), equating to the Upper Aalenian and Lower Bajocian.
description: Published as part of Branger, Patrick, 2024, Antaganides n. gen., a new genus of Middle Jurassic nautiloid, ancestor of Pseudaganides Spath, 1927, with discussion on the phyletic origin of the family Pseudonautilidae, pp. 471-493 in Geodiversitas 46 (14) on page 474, DOI: 10.5252/geodiversitas2024v46a14, http://zenodo.org/record/13884433
Η ποιότητα ζωής των ατόμων με μεσογειακή αναιμία στην παιδική ηλικία και την ενήλικη ζωή
Creators: name: Σύμπα, Παρασκευή Σπυρίδωνα
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Μεσογειακή αναιμία
Ποιότητα ζωής
Αίσθημα ικανοποίησης από τη ζωή
Thalassemia
Quality of life
Satisfaction with life.

description: Η μεσογειακή αναιμία συνιστά μια χρόνια νόσο που επιφέρει σημαντικές επιπτώσεις στη σωματική υγεία των πασχόντων, καθώς όμως και στην ψυχολογική τους κατάσταση, επηρεάζοντας την ποιότητα ζωής τους και το αίσθημα ικανοποίησης από τη ζωή τους. Στην παρούσα μελέτη διερευνήθηκε ο τρόπος με τον οποίο αξιολογούν οι πάσχοντες στο παρόν και αναδρομικά στην παιδική ηλικία, την ποιότητα ζωής και το αίσθημα ικανοποίησης από τη ζωή τους, ενώ παράλληλα οι γονείς αξιολόγησαν την ποιότητα ζωής των παιδιών τους κατά τη διάρκεια της παιδικής ηλικίας. Το δείγμα απαρτίστηκε από 31 ασθενείς και από 28 γονείς. Αμφότεροι οι συμμετέχοντες συμπλήρωσαν ερωτηματολόγια, τα οποία αξιολογούν την ποιότητα ζωής των ασθενών με μεσογειακή αναιμία. Τα αποτελέσματα έδειξαν ότι οι ενήλικες ασθενείς θεωρούν ότι η ποιότητα ζωής τους ήταν καλύτερη στην παιδική ηλικία ως προς τη διάσταση της ποιότητας της ζωής που σχετίζεται με την ασθένεια και τα συμπτώματά της και τις επιπτώσεις της στην κινητικότητα και τις κοινωνικές σχέσεις. Επιπλέον αξιολογούν λιγότερο θετικά την ποιότητα ζωής που σχετίζεται με την ασθένεια και τα συμπτώματά της, καθώς και την ψυχοκοινωνική ποιότητα της ζωής, συγκριτικά με τους γονείς τους.
description: Thalassemia is a chronic disease that affects physical and psychological state of patients. Also, it affects their quality of life and satisfaction with life. In this study explored how patients assess their quality of life and feeling of satisfaction with their lives in present as well as in childhood. Their parents assessed the quality of life of their children during childhood. The sample consisted of 31 patients and 28 parents. Both participants completed questionnaires assessing the quality of life of patients with thalassemia. The results showed that adult patients considered that their quality of life was better in childhood, especially in domains of quality of life associated with the disease and its symptoms and its effects on mobility and social relationships. In addition, they assessed less positively the quality of life associated with the disease and its symptoms, as well as the psychosocial quality of life, compared to their parents.
Atomic self-interaction correction for molecules and solids
Creators: name: Pemmaraju, C. D.
name: Archer, T.
name: Sanchez-Portal, D.
name: Sanvito, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an atomic orbital based approximate scheme for self-interaction correction (SIC) to the local density approximation of density functional theory. The method, based on the idea of Filippetti and Spaldin [Phys. Rev. B 67, 125109 (2003)], is implemented in a code using localized numerical atomic orbital basis sets and is now suitable for both molecules and extended solids. After deriving the fundamental equations as a non-variational approximation of the self-consistent SIC theory, we present results for a wide range of molecules and insulators. In particular, we investigate the effect of re-scaling the self-interaction correction and we establish a link with the existing atomic-like corrective scheme LDA+U. We find that when no re-scaling is applied, i.e. when we consider the entire atomic correction, the Kohn-Sham HOMO eigenvalue is a rather good approximation to the experimental ionization potential for molecules. Similarly the HOMO eigenvalues of negatively charged molecules reproduce closely the molecular affinities. In contrast a re-scaling of about 50% is necessary to reproduce insulator bandgaps in solids, which otherwise are largely overestimated. The method therefore represents a Kohn-Sham based single-particle theory and offers good prospects for applications where the actual position of the Kohn-Sham eigenvalues is important, such as quantum transport.
description: 16 pages, 7 figures
Statistics of Anyon Gas and the Factorizable Property of Thermodynamic Quantities
Creators: name: Huang, Wung-Hong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The statistical distribution function of anyon is used to find the eighth viral coefficient in the high-temperature limit and the equation of state in the low-temperature limit. The perturbative results indicate that the thermodynamic quantities, $Q(α)$, of the free anyon gas may be factorized in the terms characteristic of the ideal Bose ($α=0$) and fermion ($α=1$) gases, i.e., $Q(α) = αQ(1) + (1-α) Q(0)$. It is shown that the factorizable property of the thermodynamic quantities, to all orders, can be established from the property of the equivalence between the anyon statistics and statistics in a system with boson-fermion transmutation, which was found by us in a recent paper (hep-th/0308095; Phys. Rev. E 51 (1995) 3729)
Dimer-monomer model on the Sierpinski gasket
Creators: name: Chang, Shu-Chiuan
name: Chen, Lung-Chi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present the numbers of dimer-monomers on the Sierpinski gasket $SG_d(n)$ at stage $n$ with dimension $d$ equal to two, three and four, and determine the asymptotic behaviors. The corresponding results on the generalized Sierpinski gasket $SG_{d,b}(n)$ with $d=2$ and $b=3,4$ are obtained.
description: 30 pages, 10 figures, 10 tables
Area of ideal triangles and Gromov hyperbolicity in Hilbert Geometry
Creators: name: Colbois, B.
name: Vernicos, C.
name: Verovic, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 53C60, 53C15, 51F99

description: We prove, in the context of Hilbert geometry, the equivalence between the existence of an upper bound on the area of ideal triangles and the Gromov-hyperbolicity.
A study of the flexible space platform based deployable manipulator
Creators: name: Marom, Itshak
Publisher: name: University of British Columbia
Year: 2008

description: A relatively general formulation, based on Lagrange's approach, for studying the nonlinear dynamics and control of a flexible, space based, Mobile Deployable Manipulator (MDM) has been developed. The formulation has the following distinctive features: (i) it is applicable to a two-link deployable manipulator translating along a flexible space platform in any desired orbit; (ii) the revolute and the prismatic joints are flexible with finite gear ratio and rotor inertia; (iii) the nonlinear, non autonomous and coupled equations of motion are presented in a compact form which provide insight into the intricate dynamical interactions and help achieve a highly efficient dynamic simulation. Validity of the formulation and the computer code were established through checks on conservation of the system energy, and comparison with test-cases. Results of the dynamical analysis clearly show that under critical combinations of parameters, the system can become unstable. An inverse kinematic technique, accounting for the linear and angular displacements of the flexible platform, has been developed to meet the desired position and orientation requirement of the end effector with respect to the chosen reference frame. A nonlinear control strategy, based on the Feedback Linearization Technique (FLT) has been developed to ensure accurate tracking of a desired trajectory in presence of the system libration as well as the base translation and vibrations. The controller also ensures desired attitude motion in presence of the manipulator's translational and slewing maneuvers. The closed loop simulation results show that a desired degree of system stability and high tracking accuracy can be achieved.
Solving problems of 4D minimal SO(10) model in a warped extra dimension
Creators: name: Fukuyama, Takeshi
name: Kikuchi, Tatsuru
name: Okada, Nobuchika
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The minimal renormalizable supersymmetric SO(10) model, an SO(10) framework with only one 10 and one 126 Higgs multiplets in the Yukawa sector, is attractive because of its high predictive power for the neutrino oscillation data. However, this model suffers from problems related to running of gauge couplings. The gauge coupling unification may be spoiled due to the presence of Higgs multiplets much lighter than the grand unification (GUT) scale. In addition, the gauge couplings blow up around the GUT scale because of the presence of Higgs multiplets of large representations. We consider the minimal SO(10) model in the warped extra dimension and find a possibility to solve these problems.
description: 12 pages, no figure; version to appear in Phys. Rev. D
Modified gravity and its reconstruction from the universe expansion history
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop the reconstruction program for the number of modified gravities: scalar-tensor theory, $f(R)$, $F(G)$ and string-inspired, scalar-Gauss-Bonnet gravity. The known (classical) universe expansion history is used for the explicit and successful reconstruction of some versions (of special form or with specific potentials) from all above modified gravities. It is demonstrated that cosmological sequence of matter dominance, decceleration-acceleration transition and acceleration era may always emerge as cosmological solutions of such theory. Moreover, the late-time dark energy FRW universe may have the approximate or exact $Λ$CDM form consistent with three years WMAP data. The principal possibility to extend this reconstruction scheme to include the radiation dominated era and inflation is briefly mentioned. Finally, it is indicated how even modified gravity which does not describe the matter-dominated epoch may have such a solution before acceleration era at the price of the introduction of compensating dark energy.
description: LaTeX file, 24 pages, no figure, prepared for the proceedings of ERE 2006, minor corrections
Supplementary Material from The effect of social structure on vocal flexibility in monk parakeets
Creators: name: Smeele, Simeon Q
name: Senar, Juan Carlos
name: McElreath, Mary Brooke
name: Aplin, Lucy
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified

description: Supplemental methods
Twister: Construction and structural relaxation of commensurate moiré superlattices
Creators: name: Naik, Saismit
name: Naik, Mit H.
name: Maity, Indrajit
name: Jain, Manish
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Introduction of a twist between layers of two-dimensional materials which leads to the formation of a moiré pattern is an emerging pathway to tune the electronic, vibrational and optical properties. The fascinating properties of these systems is often linked to large-scale structural reconstruction of the moiré pattern. Hence, an essential first step in the theoretical study of these systems is the construction and structural relaxation of the atoms in the moiré superlattice. We present the Twister package, a collection of tools that constructs commensurate superlattices for any combination of 2D materials and also helps perform structural relaxations of the moiré superlattice. Twister constructs commensurate moiré superlattices using the coincidence lattice method and provides an interface to perform structural relaxations using classical forcefields.
Structural network heterogeneities and network dynamics: a possible dynamical mechanism for hippocampal memory reactivation
Creators: name: Jablonski, Piotr
name: Poe, Gina R.
name: Zochowski, Michal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: The hippocampus has the capacity for reactivating recently acquired memories [1-3] and it is hypothesized that one of the functions of sleep reactivation is the facilitation of consolidation of novel memory traces [4-11]. The dynamic and network processes underlying such a reactivation remain, however, unknown. We show that such a reactivation characterized by local, self-sustained activity of a network region may be an inherent property of the recurrent excitatory-inhibitory network with a heterogeneous structure. The entry into the reactivation phase is mediated through a physiologically feasible regulation of global excitability and external input sources, while the reactivated component of the network is formed through induced network heterogeneities during learning. We show that structural changes needed for robust reactivation of a given network region are well within known physiological parameters [12,13].
description: 16 pages, 5 figures
Παράδοση και ανανέωση στο έργο του Νίκου Ματσούκα
Creators: name: Κότσαπας, Νικόλαος Κώστα
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ορθόδοξη θεολογία
Ιστορία φιλοσοφίας
Οικουμενική θεολογία
Orthodox dogmatics
History of philosophy
Ecumenical theology

description: Η παρούσα μεταπτυχιακή εργασία πραγματεύεται την παράδοση και την ανανέωση στο έργο του Νίκου Ματσούκα. Βασικότεροι στόχοι της είναι η παρουσίαση της διαδρομής του και η υπογράμμιση των πιο σημαντικών σταθμών της συγγραφικής παραγωγής του. Ο συγκεκριμένος τρόπος ανάλυσης αποσκοπεί στη διασαφήνιση της διαχρονίας και της συγχρονίας στο ζεύγος παράδοση και ανανέωση για την αποτίμηση του πολυσχιδούς έργου του, το οποίο δεν περιορίζεται μόνο στο χώρο της θεολογικής επιστήμης, αλλά απλώνεται και στους χώρους της λογοτεχνίας, της φιλοσοφίας, της ιστορίας και του πολιτισμού. Ο συνδυασμός της βαθειάς μελέτης των Πατέρων της πρώτης χιλιετίας, της κοινής χριστιανικής παράδοσης, και της κοφτερής ερμηνευτικής του ματιάς αναδεικνύουν, μέσα απο το έργο του, το όραμά του για την συμπαντικότητα, την εκκλησιαστική συνέχεια του εκκλησιαστικού σώματος αλλά και όλου του κόσμου, ως δημιουργία, Kτισιολογία, ιστορία και έσχατα ως τελείωση. Την ίδια στιγμή, ο αντιμανιχαϊστικός λόγος του ανατρέπει το δυαρχικό σύστημα της αρχαίας ελληνικής φιλοσοφίας, που διαμόρφωσε τον τρόπο σκέψης της αρχαίας και της σύγχρονης κοινωνίας. Με αυτόν τον τρόπο απελευθερώνει τον άνθρωπο από την υποκρισία της ειδωλικής σκέψης και τον ηθικισμό. Έτσι, μέσα από το εργογραφικό υλικό του και τη διεισδυτική μελέτη του στα πατερικά κείμενα αποκαλύπτεται μια διαφορετική πλευρά του Χριστιανισμού σε αντίθεση με τα σχολαστικά εγχειρίδια της εποχής του, αλλά και ολόκληρη η ερμηνεία της πίστης την τελευταία πεντηκονταετία
description: This master’s dissertation deals with the tradition and renewal in the work of Nikos Matsoukas. It mainly aims to present the professor’s journey and to emphasize the major milestones of his work. The main objective of this particular method of analysis is to clarify the diachrony and the synchrony in the tradition – renewal pair for the evaluation of his multifaceted work, which is not limited to the field of theological science, but is also extended to the fields of literature, philosophy, history and culture. The combination of the intensive study of the Fathers of the first millennium, the common Christian tradition, and his sharp interpretive view highlight through his work, his vision for the universality, the ecclesiastical continuity of the ecclesiastical body, and of the whole world, as creation, history and consummation in the “eschata”. At the same time, his anti-Manichean discourse overturns the dualistic system of the ancient Greek philosophy, which shaped the way of thinking of the ancient and the contemporary society. In this way, he liberates man from hypocrisy of symbolic thinking and moralism. Thus, through his complete work and his penetrating study of the patristic texts a different aspect of Christianity is revealed in contrast to the scholastic textbooks of his time, but also is presented an entire interpretation of the faith in the last fifty years
Skyrmion-size dependence of the topological Hall effect: A real-space calculation
Creators: name: Matsui, Akira
name: Nomoto, Takuya
name: Arita, Ryotaro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the recent discoveries of magnets harboring short-pitch skyrmion lattices, we investigate the skyrmion-size dependence of the topological Hall effect. By means of large-scale real-space calculations, we find that the Hall conductivity takes its extreme value in the crossover region where both the real-space and momentum-space Berry curvature play a crucial role. We also investigate how the optimum skyrmion size ($λ_{\rm sk}^*$) depends on the lifetime of itinerant electrons ($τ$) and coupling constant between electrons and localized spins ($J$). For the former, we show that $λ_{\rm sk}^{*}$ is proportional to $\sqrtτ$, which indicates that $λ_{\rm sk}^{*}$ is much less sensitive to $τ$ than the conventional expectation that $λ_{\rm sk}^{*}$ is proportional to the mean-free path $\propto τ$. For the latter, we show that the non-adiabaticity considerably suppresses the topological Hall effect when the time scale determined by the skyrmion size and Fermi velocity is shorter than $1/J$. However, its effect on $λ_{\rm sk}^{*}$ is not so siginificant and $λ_{\rm sk}^{*}$ is about ten times the lattice constant in a wide range of $J$ and $τ$.
Karte von Musawwarat es Sufra / Karte des Konzessionsgebietes am 4. Katarakt
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan
Cosmic Microwave Weak lensing data as a test for the dark universe
Creators: name: Calabrese, Erminia
name: Slosar, Anze
name: Melchiorri, Alessandro
name: Smoot, George F.
name: Zahn, Oliver
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Combined analyses of WMAP 3-year and ACBAR Cosmic Microwave Anisotropies angular power spectra have presented evidence for gravitational lensing >3 sigma level. This signal could provide a relevant test for cosmology. After evaluating and confirming the statistical significance of the detection in light of the new WMAP 5-year data, we constrain a new parameter A_L that scales the lensing potential such that A_L=0 corresponds to unlensed while A_L=1 is the expected lensed result. We find from WMAP5+ACBAR a 2.5 sigma indication for a lensing contribution larger than expected, with A_L=3.1_{-1.5}^{+1.8} at 95% c.l.. The result is stable under the assumption of different templates for an additional Sunyaev-Zel'dovich foreground component or the inclusion of an extra background of cosmic strings. We find negligible correlation with other cosmological parameters as, for example, the energy density in massive neutrinos. While unknown systematics may be present, dark energy or modified gravity models could be responsible for the over-smoothness of the power spectrum. Near future data, most notably from the Planck satellite mission, will scrutinize this interesting possibility.
description: 7 Pages, 3 Figures
Strain sensitivity enhancement for the hole-drilling residual stresses measurement method
Creators: name: Tootoonian, Mohammad
Publisher: name: University of British Columbia
Year: 2009

description: Two methods for enhancing the strain sensitivity of the hole-drilling method for measuring residual stress fields were examined in this thesis. Such enhanced strain sensitivity is important because it improves the accuracy of the residual stress evaluation. The first method involves enlarging the effective hole size by drilling a reverse taper hole. A simple practical technique for drilling reverse taper holes is described. The strain sensitivity for this new method is compared with that of the conventional hole-drilling method. Experimental results show excellent correspondence with theoretical results. The reasons for the sensitivity improvement are explained. The second method involves designing a 6-element strain gauge rosette. It is shown that the new 6-element rosette significantly enhances the strain sensitivity of the hole-drilling method. Experimental results show excellent agreement with predicted results. Moreover, it is shown that this new rosette improves the accuracy of the method concerning the measurement of the variation of residual stresses with depth.
Yang-Mills thermodynamics at low temperature
Creators: name: Hofmann, Ralf
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For the confining phase of SU(2) Yang-Mills thermodynamics we show that the asymptotic series representing the pressure is Borel summable for negative (unphysical) values of a suitably defined coupling constant. The inverse Borel transform is meromorphic except for a branch cut along the positive-real axis. The physical pressure is precisely nil at vanishing and acquires a small imaginary admixture at small temperature the latter indicating violations of thermal equilibrium (turbulences).
description: 12 pages, 4 figures, v2: slight modification of text, typo removed in Eq. 18, matches published version
Ιστορία της φωτογραφίας: από την εφεύρεση του μέσου μέχρι το Β’ παγκόσμιο πόλεμο. Μουσειολογικός προγραμματισμός και σχεδιασμός έκθεσης
Creators: name: Καρίκη, Όλγα Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ιστορία της φωτογραφίας
Εικονικός σχεδιασμός έκθεσης
Σκοτεινός θάλαμος
History of photography
Exhibition
Camera Obscura

description: Σκοπός της διατριβής ήταν η μελέτη της ιστορίας της φωτογραφίας. Παρουσιάζονται βήμα – βήμα όλα τα στάδια σταθμός για την εξέλιξη του μέσου, επισημαίνοντας τη συμβολή των επιστημών και της τεχνολογικής προόδου στην εφεύρεση και ανάπτυξη της. Ακόμη μελετήθηκαν τομείς της ανθρωπότητας που χρησιμοποιούν τη φωτογραφία ως βασικό εργαλείο. Ένα άλλο σημαντικό κομμάτι αποτελεί ο μουσειολογικός προγραμματισμός και σχεδιασμός έκθεσης σε μουσείο. Σχεδιάστηκε εικονική έκθεση με στόχο την γνωριμία του θεατή με την εφεύρεση και την κατανόηση του τρόπου λειτουργίας της. Η βιωματική αφήγηση της εικονικής έκθεσης αποδίδεται με φωτογραφίες, αντικείμενα και installation.
description: The aim of this Dissertation is to study the history of photography. All the crucial stages, which have formulated and evolved this medium, are presented step by step while simultaneously stressing the significance of technological progress and scientific contribution in the process. Furthermore, there was a thorough study of photography via various disciplines and social sectors. Another important aspect that was examined was museum programming and planning of exhibition. A virtual exhibition was organized in order for the viewer to become familiar with the functionality of this great invention. The exhibition's narrative is communicated through photographs, items and an installation.
description: Σε συνεργασία με: Παιδαγωγικό Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Discrete random walk models for space-time fractional diffusion
Creators: name: Gorenflo, Rudolf
name: Mainardi, Francesco
name: Moretti, Daniele
name: Pagnini, Gianni
name: Paradisi, Paolo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A physical-mathematical approach to anomalous diffusion may be based on generalized diffusion equations (containing derivatives of fractional order in space or/and time) and related random walk models. The fundamental solution (for the {Cauchy} problem) of the fractional diffusion equations can be interpreted as a probability density evolving in time of a peculiar self-similar stochastic process that we view as a generalized diffusion process. By adopting appropriate finite-difference schemes of solution, we generate models of random walk discrete in space and time suitable for simulating random variables whose spatial probability density evolves in time according to a given fractional diffusion equation.
description: 38 pages, 8 figures (21 eps files), 1 Table
B-BOP, the SPICA Imaging Polarimeter
Creators: name: Revéret, Vincent
name: Sauvage, Marc
name: Adami, Obaïd
name: Aliane, Abdelkader
name: Berthé, Michel
name: Bounissou, Sophie
name: de la Broïse, Xavier
name: Chimeno, Marcos
name: Demonti, Amala
name: Delabrouille, Jacques
name: Delisle, Cyrille
name: Doumayrou, Eric
name: Duband, Lionel
name: Dubreuil, Didier
name: Dussopt, Laurent
name: Frugier, Pierre-Antoine
name: Gennet, Camille
name: Gevin, Olivier
name: Goudon, Valérie
name: Kaya, Hacile
name: Marquet, Benoît
name: Martignac, Jérôme
name: Martin, Sylvain
name: Najarro, Paco
name: Navick, Xavier-François
name: Perez, Javier
name: Plesseria, Jean-Yves
name: Poglitsch, Albrecht
name: Rodriguez, Louis
name: Redondo, Josefina Torres
name: Visticot, François
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the B-BOP instrument, a polarimetric camera on board the future ESA-JAXA SPICA far-infrared space observatory. B-BOP will allow the study of the magnetic field in various astrophysical environments thanks to its unprecedented ability to measure the linear polarization of the submillimeter light. The maps produced by B-BOP will contain not only information on total power, but also on the degree and the angle of polarization, simultaneously in three spectral bands (70, 200 and 350 microns). The B-BOP detectors are ultra-sensitive silicon bolometers that are intrinsically sensitive to polarization. Their NEP is close to 10E-18 W/sqrt(Hz). We will present the optical and thermal architectures of the instrument, we will detail the bolometer design and we will show the expected performances of the instrument based on preliminary lab work.
description: 10 pages, 6 figures, SPIE proceeding: Astronomical Telescopes + Instrumentation 2020
Linear Encodings of Bounded LTL Model Checking
Creators: name: Biere, Armin
name: Heljanko, Keijo
name: Junttila, Tommi
name: Latvala, Timo
name: Schuppan, Viktor
Publisher: name: arXiv
Year: 2006
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1; B.6.3; D.2.4; F.4.1

description: We consider the problem of bounded model checking (BMC) for linear temporal logic (LTL). We present several efficient encodings that have size linear in the bound. Furthermore, we show how the encodings can be extended to LTL with past operators (PLTL). The generalised encoding is still of linear size, but cannot detect minimal length counterexamples. By using the virtual unrolling technique minimal length counterexamples can be captured, however, the size of the encoding is quadratic in the specification. We also extend virtual unrolling to Buchi automata, enabling them to accept minimal length counterexamples. Our BMC encodings can be made incremental in order to benefit from incremental SAT technology. With fairly small modifications the incremental encoding can be further enhanced with a termination check, allowing us to prove properties with BMC. Experiments clearly show that our new encodings improve performance of BMC considerably, particularly in the case of the incremental encoding, and that they are very competitive for finding bugs. An analysis of the liveness-to-safety transformation reveals many similarities to the BMC encodings in this paper. Using the liveness-to-safety translation with BDD-based invariant checking results in an efficient method to find shortest counterexamples that complements the BMC-based approach.
description: Final version for Logical Methods in Computer Science CAV 2005 special issue
Francis Geus (1941–2005)
Creators: name: Valbelle, Dominique
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan
Porträt
Creators: name: Lohwasser, Angelika
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan
Search for Neutral, Long-lived Particles Decaying into Two Muons in p-pbar Collisions at sqrt(s) = 1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a search for a neutral particle, pair-produced in p-pbar collisions at sqrt(s)=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses ~380 pb^-1 of data recorded with the D0 detector. The background is estimated to be about one event. No candidates are observed, and limits are set on the pair production cross section times branching fraction into dimuons + X for such particles. For a mass of 10 GeV and lifetime of 4x10^-11 s, we exclude values greater than 0.14 pb (95% C.L.). These results are used to limit the interpretation of NuTeV's excess of di-muon events.
description: submitted to Phys. Rev. Lett
A review of machine learning in processing remote sensing data for mineral exploration
Creators: name: Shirmard, Hojat
name: Farahbakhsh, Ehsan
name: Muller, R. Dietmar
name: Chandra, Rohitash
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The decline of the number of newly discovered mineral deposits and increase in demand for different minerals in recent years has led exploration geologists to look for more efficient and innovative methods for processing different data types at each stage of mineral exploration. As a primary step, various features, such as lithological units, alteration types, structures, and indicator minerals, are mapped to aid decision-making in targeting ore deposits. Different types of remote sensing datasets, such as satellite and airborne data, make it possible to overcome common problems associated with mapping geological features. The rapid increase in the volume of remote sensing data obtained from different platforms has encouraged scientists to develop advanced, innovative, and robust data processing methodologies. Machine learning methods can help process a wide range of remote sensing datasets and determine the relationship between components such as the reflectance continuum and features of interest. These methods are robust in processing spectral and ground truth measurements against noise and uncertainties. In recent years, many studies have been carried out by supplementing geological surveys with remote sensing datasets, which is now prominent in geoscience research. This paper provides a comprehensive review of the implementation and adaptation of some popular and recently established machine learning methods for processing different types of remote sensing data and investigates their applications for detecting various ore deposit types. We demonstrate the high capability of combining remote sensing data and machine learning methods for mapping different geological features that are critical for providing potential maps. Moreover, we find there is scope for advanced methods to process the new generation of remote sensing data for creating improved mineral prospectivity maps.
description: 26 pages, 4 figures, 2 tables
A Hybrid N-Body Code Incorporating Algorithmic Regularization and Post-Newtonian Forces
Creators: name: Harfst, S.
name: Gualandris, A.
name: Merritt, D.
name: Mikkola, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a novel N-body code designed for simulations of the central regions of galaxies containing massive black holes. The code incorporates Mikkola's 'algorithmic' chain regularization scheme including post-Newtonian terms up to PN2.5 order. Stars moving beyond the chain are advanced using a fourth-order integrator with forces computed on a GRAPE board. Performance tests confirm that the hybrid code achieves better energy conservation, in less elapsed time, than the standard scheme and that it reproduces the orbits of stars tightly bound to the black hole with high precision. The hybrid code is applied to two sample problems: the effect of finite-N gravitational fluctuations on the orbits of the S-stars; and inspiral of an intermediate-mass black hole into the galactic center.
description: 12 pages, 15 figures, accepted for publication in MNRAS
Recent Developments in Blockchain Technology and their Impact on Energy Consumption
Creators: name: Sedlmeir, Johannes
name: Buhl, Hans Ulrich
name: Fridgen, Gilbert
name: Keller, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The enormous power consumption of Bitcoin has led to undifferentiated discussions in science and practice about the sustainability of blockchain and distributed ledger technology in general. However, blockchain technology is far from homogeneous - not only with regard to its applications, which now go far beyond cryptocurrencies and have reached businesses and the public sector, but also with regard to its technical characteristics and, in particular, its power consumption. This paper summarizes the status quo of the power consumption of various implementations of blockchain technology, with special emphasis on the recent 'Bitcoin Halving' and so-called 'zk-rollups'. We argue that although Bitcoin and other proof-of-work blockchains do indeed consume a lot of power, alternative blockchain solutions with significantly lower power consumption are already available today, and new promising concepts are being tested that could further reduce in particular the power consumption of large blockchain networks in the near future. From this we conclude that although the criticism of Bitcoin's power consumption is legitimate, it should not be used to derive an energy problem of blockchain technology in general. In many cases in which processes can be digitised or improved with the help of more energy-efficient blockchain variants, one can even expect net energy savings.
description: This is a translated version of a German article published in Informatik Spektrum
In memoriam Fritz Hintze
Creators: name: Endesfelder, Erika
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan