cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Emil Werth, Grabstock, Hacke und Pflug. Versuch einer Entstehungsgeschichte des Landbaues
Creators: name: Uslar, Rafael Von
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Emil Werth, Grabstock, Hacke und Pflug. Versuch einer Entstehungsgeschichte des Landbaues. Ludwigsburg (Verlag Eugen Ulmer) 1954. 434 Seiten, 231 Abbildungen, 25 Karten im Text.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Electronic states near a quantum fluctuating point vortex in a d-wave superconductor: Dirac fermion theory
Creators: name: Nikolic, Predrag
name: Sachdev, Subir
name: Bartosch, Lorenz
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We introduce a simple model of the low energy electronic states in the vicinity of a vortex undergoing quantum zero-point motion in a d-wave superconductor. The vortex is treated as a point flux tube, carrying pi-flux of an auxiliary U(1) gauge field, which executes simple harmonic motion in a pinning potential. The nodal Bogoliubov quasiparticles are represented by Dirac fermions with unit U(1) gauge charge. The energy dependence of the local density of electronic states (LDOS) at the vortex center has no zero bias peak; instead, small satellite features appear, driven by transitions between different vortex eigenmodes. These results are qualitatively consistent with scanning tunneling microscopy measurements of the sub-gap LDOS in cuprate superconductors. Furthermore, as argued in L. Balents et al., Phys.Rev.B 71, 144508 (2005), the zero-point vortex motion also leads naturally to the observed periodic modulations in the spatial dependence of the sub-gap LDOS.
description: 17 pages, 12 figures; a new appendix is added (material taken from cond-mat/0604105)
BotRGCN: Twitter Bot Detection with Relational Graph Convolutional Networks
Creators: name: Feng, Shangbin
name: Wan, Herun
name: Wang, Ningnan
name: Luo, Minnan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Twitter bot detection is an important and challenging task. Existing bot detection measures fail to address the challenge of community and disguise, falling short of detecting bots that disguise as genuine users and attack collectively. To address these two challenges of Twitter bot detection, we propose BotRGCN, which is short for Bot detection with Relational Graph Convolutional Networks. BotRGCN addresses the challenge of community by constructing a heterogeneous graph from follow relationships and applies relational graph convolutional networks. Apart from that, BotRGCN makes use of multi-modal user semantic and property information to avoid feature engineering and augment its ability to capture bots with diversified disguise. Extensive experiments demonstrate that BotRGCN outperforms competitive baselines on a comprehensive benchmark TwiBot-20 which provides follow relationships.
description: accepted at ASONAM 2021
Στρατιωτικα Λιμενικά Έργα
Creators: name: Γούλας, Απόστολος Γεώργιου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Κύματα
Βαθιά θάλασσα
Ενεργειακά φάσματα
Waves
Deep water area
Energy spectrums

description: Greece constitutes a demanding "theatre" for port contstructions, thanks to its diverse coast line and the numberous islands of all sizes. In addition, the recent geostrategic challenges make the port constructions an ideal tool of demonstrating and underlining national presence over areas where rich oil and gas fields are emerging, according to the last surveys that take place in the SE Mediterrenean Sea. On the other hand, the military port constructions have to take into account many challenges, because of their special characteristics and the challenges they To this task, a presentation of selected military port constructions of different scales will be demontsrated, focusing mainly on their unique characteristics and the differences from the majority of these constructions.
description: Η Ελλάδα αποτελεί έναν απαιτητικό χώρο για λιμενικά έργα, εξαιτίας της ποικίλης ακτογραμμής και των πολυάριθμων νησιών όλων των μεγεθών. Επιπλέον, οι πρόσφατες γεωστρατηγικές προκλήσεις κάνουν τα λιμενικά εργά το ιδανικό εργαλείο για «δήλωση» και υπογράμμιση εθνικής παρουσίας σε περιοχές πλούσιες σε κοιτάσματα πετρελαίου και αερίου, σύμφωνα με τις τελευταίες έρευνες που διεξάγονται στην ΝΑ Μεσόγειο. Επιπλέον, τα στρατιωτικά λιμενικά έργα αντιμετωπίζουν πολλές προκλήσεις, εξαιτίας των ειδικών τους χαρακτηριστικών και των δυσκολιών που αντιμετωπίζουν. Σε αυτό το πνεύμα θα παρουσιασθεί ένα λιμενικό έργο που κατασκευάστηκε επ’ωφελεία των ΕΔ της χώρας.
Guyan, W. U., Levi, H., Lüdi, W., Speck, J., Tauber, H., Troels-Smith, J., Vogt, E. und Welten, M., Das Pfahlbauproblem
Creators: name: Bandi, Hans-Georg
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Guyan, W. U., Levi, H., Lüdi, W., Speck, J., Tauber, H., Troels-Smith, J., Vogt, E. und Welten, M., Das Pfahlbauproblem. Herausgegeben zum Jubiläum des l00jährigen Bestehens der schweizerischen Pfahlbauforschung. Redaktion: W. U. Guyan. Monographien zur Ur- und Frühgeschichte der Schweiz, Bd. XI, Basel 1955, 334 Seiten, zahlreiche Tafeln und Abbildungen.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Mensagens entre Luíz Tamuxi e Xinuxi
Creators: name: Mỹky, Xinuxi
name: Tamuxi, Luiz
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: Manoki language
subject: irn

description: Luíz Tamuxi envia uma mensagem para Xinuxi, na aldeia mỹky de Japuira, que depois de ouvir manda outra mensagem de volta. Dois arquivos diferentes.
Luíz Tamuxi records a message for Xinuxi in the Japuira village of the Mỹky, who sends a message back.
Georg und Vera Leisner, Die Megalithgräber der Iberischen Halbinsel. Der Westen
Creators: name: Schrickel, Waldtraut
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Georg und Vera Leisner, Die Megalithgräber der Iberischen Halbinsel. Der Westen. Madrider Forschungen Band 1. Herausgegeben vom Deutschen Archäologischen Institut, Abteilung Madrid. Verlag Walter de Gruyter & Co., Berlin 1956. 122 Seiten, 80 Tafeln (Plane, Abbildungen und Verbreitungskarten).
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Cooper-pair transport through a Hubbard chain sandwiched between two superconductors: Density matrix renormalization group calculations
Creators: name: Feiguin, A. E.
name: White, S. R.
name: Scalapino, D. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a numerical approach to study the coherent transport of Cooper pairs through a Hubbard chain, and study the role of the contacts in achieving perfect Andreev reflection. We calculate the pair transport using the Density Matrix Renormalization Group by measuring the response of the system to quantum pair fields with complex phases on the two ends of an open system. This approach gives an effective superfluid weight which is in close agreement with the Bethe Ansatz results for the superfluid weight for closed Hubbard rings.
description: 5 pages, 6 figures
Η Ιατρικώς Υποβοηθούμενη Αναπαραγωγή Οροθετικών Ατόμων στον ιό HIV/AIDS
Creators: name: Τάκου, Μαριάννα Γεωργία
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Τεχνητή γονιμοποίηση
Οροθετικός
Προϋποθέσεις
Artificial insemination
Seropositive
Conditions

description: Η παρούσα εισήγηση παρουσιάζει το ζήτημα της ιατρικώς υποβοηθούμενης αναπαραγωγής στην οποία επιτρέπεται υπό όρους να υποβληθούν άτομα οροθετικά στον ιό HIV/AIDS. Με εκτενή αναφορά και περιγραφή του ιού HIV, των συμπτωμάτων της ασθένειας του AIDS, των σημερινών προοπτικών αντιμετώπισης της νόσου και αντίστοιχα περιγραφή των γενικών προϋποθέσεων εφαρμογής των μεθόδων ιατρικώς υποβοηθούμενης αναπαραγωγής, επιχειρεί να εξετάσει το σημείο συνάντησης των δύο βασικών θεματικών, την ιατρική υποβοήθηση της αναπαραγωγής οροθετικών προσώπων. Γίνεται λεπτομερής αναφορά στο ημεδαπό νομικό καθεστώς των ειδικών προϋποθέσεων τεχνητής γονιμοποίησης των ατόμων αυτών, σε θεωρητικό επίπεδο και πρακτικό, συγκριτική επισκόπηση με τα δίκαια άλλων χωρών αλλά και εξέταση των ηθικών ζητημάτων που γεννώνται από την διαδικασία αυτή(επιχειρηματολογία υπέρ και κατά χορήγησης ιατρικής φροντίδας στα οροθετικά πρόσωπα που επιθυμούν να τεκνοποιήσουν μέσω τεχνητής γονιμοποίησης).
description: This paper presents the issue of medically assisted reproduction, particulalry, in which cases patients with HIV / AIDS are serologically authorized. With extensive HIV reporting and description of the symptoms of AIDS, current disease outlook and a corresponding description of the general conditions for the use of medically assisted reproduction methods, attempts to examine the meeting point of the two key issues, the medical assistance to the reproduction of HIV positive persons. A detailed reference is made to our national legal status of the special conditions for artificial insemination of these persons, at a theoretical level and practical, comparative examination with the laws of other countries, as well as an examination of the ethical issues arising from this procedure (arguments for and against provision of medical care to seropositive individuals who wish to fertilize them through artificial insemination).
On the structure of the correlation coefficients S(E_e) and U(E_e) of the neutron beta decay
Creators: name: Ivanov, A. N.
name: Höllwieser, R.
name: Troitskaya, N. I.
name: Wellenzohn, M.
name: Berdnikov, Ya. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the standard effective V - A theory of low-energy weak interactions (i.e. in the Standard Model (SM)) we analyze the structure of the correlation coefficients S(E_e) and U(E_e), where E_e is the electron energy. These correlation coefficients were introduced to the electron-energy and angular distribution of the neutron beta decay by Ebel and Feldman ( Nucl. Phys. 4, 213 (1957)) in addition to the set of correlation coefficients proposed by Jackson et al. (Phys. Rev. 106, 517 (1957)). The correlation coefficients $S(E_e)$ and $U(E_e)$ are induced by simultaneous correlations of the neutron and electron spins and electron and antineutrino 3-momenta. These correlation structures do no violate discrete P, C and T symmetries. We analyze the contributions of the radiative corrections of order O(alpha/pi), taken to leading order in the large nucleon mass m_N expansion, and corrections of order O(E_e/m_N), caused by weak magnetism and proton recoil. In addition to the obtained SM corrections we calculate the contributions of interactions beyond the SM (BSM contributions) in terms of the phenomenological coupling constants of BSM interactions by Jackson et al. (Phys. Rev. 106, 517 (1957)) and the second class currents by Weinberg (Phys. Rev. 112, 1375 (1958)).
description: 13 pages, the manuscript is revised. arXiv admin note: text overlap with arXiv:2101.01014
Expanding Genome3D with models for human proteins from SWISS-MODEL
Creators: name: Orengo, Christine
name: Schwede, Torsten
Publisher: name: F1000 Research Limited
Year: 2019

description: ELIXIR funded collaboration between Genome3D and SWISS-MODEL: The implementation study aims to extend predicted domain structures in Genome3D with homology models built by SWISS-MODEL for human proteins. The CATH Functional Families (FunFams) in Genome3D are being used to send templates to SWISS MODEL and the models are being integrated in Genome3D. There are also plans to extend Genome3D with predicted data from other resources.
Comparison of two models of a Double Inlet Miniature Pulse Tube Refrigerator - Part B : Electrical Analogy
Creators: name: Bailly, Yannick
name: Nika, Philippe
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The design of a Double Inlet Pulse Tube Refrigerator is investigated by means of an analogy with an electric circuit. The results obtained with the electric scheme are compared with both those of the thermodynamic model (Part A) and experiments. The basic formulation of equivalent electronic components is discussed and a few improvements are proposed to adjust the theoretical expressions of the electrical impedances of capillaries and regenerator in order to consider additional effects such pressure drops due to geometrical singularities at different internal flow regimes. A simplified formulation for the regenerator inefficiency is deduced from considerations on its harmonic functioning. The main purpose of this analysis considers especially the design of miniature cryocoolers dedicated to electronic applications. These models are applied to a commercial miniature refrigerator. A discussion of their relevance is achieved and a few suggestions on the refrigerator design are proposed to improve the cooling production.
G. Bailloud et P. Mieg de Boofzheim, Les civilisations néolithiques de la France dans leur contexte Européen
Creators: name: Sangmeister, Edward
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: G. Bailloud et P. Mieg de Boofzheim, Les civilisations néolithiques de la France dans leur contexte Européen. Paris, A. et J. Picard et Cie., 1955. 244 Seiten, 96 ganzseitige Abbildungen und Karten.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Fritz Overbeck und Ingeborg Griez, Mooruntersuchungen zur Rekurrenzflächenfrage und Siedlungsgeschichte in der Röhn
Creators: name: Schmitz, H.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Fritz Overbeck und Ingeborg Griez, Mooruntersuchungen zur Rekurrenzflächenfrage und Siedlungsgeschichte in der Röhn. Flora 141, 1954, 51-94, mit 7 Abbildungen im Text und 3 Texttafeln.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Nested Sampling with Normalising Flows for Gravitational-Wave Inference
Creators: name: Williams, Michael J.
name: Veitch, John
name: Messenger, Chris
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a novel method for sampling iso-likelihood contours in nested sampling using a type of machine learning algorithm known as normalising flows and incorporate it into our sampler nessai. Nessai is designed for problems where computing the likelihood is computationally expensive and therefore the cost of training a normalising flow is offset by the overall reduction in the number of likelihood evaluations. We validate our sampler on 128 simulated gravitational wave signals from compact binary coalescence and show that it produces unbiased estimates of the system parameters. Subsequently, we compare our results to those obtained with dynesty and find good agreement between the computed log-evidences whilst requiring 2.07 times fewer likelihood evaluations. We also highlight how the likelihood evaluation can be parallelised in nessai without any modifications to the algorithm. Finally, we outline diagnostics included in nessai and how these can be used to tune the sampler's settings.
description: 20 pages, 11 figures, accepted to PRD, typos corrected, added new figure, other minor corrections, code available at https://doi.org/10.5281/zenodo.4550693
Production of htt_bar and htT_bar in littlest Higgs model with T-parity
Creators: name: Wang, Lei
name: Wang, Wenyu
name: Yang, Jin Min
name: Zhang, Huanjun
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the littlest Higgs model with T-parity, which predicts a pair of T-even and T-odd partners for the top quark, the top quark interactions are altered with respect to the Standard Model predictions and deviation will manifest in various top quark processes. In this work we examine the effects in htt_bar productions at the ILC and LHC. We find that in the allowed parameter space, the cross sections can be significantly deviated from the Standard Model predictions and thus provide a good test for the littlest Higgs model with T-parity. We also examine the new production channel, the htT_bar or hTt_bar production, at the LHC, which give the same final states as htt_bar production due to the dominant decay T->Wb. We find that, compared with htt_bar production, this new production channel can have a sizable production rate for a T-quark below TeV scale. Such a production will be counted into htt_bar events or possibly extracted from htt_bar events, depending on if we can distinguish the T-quark from the top quark from mass reconstructions.
description: version in PRD (11 pages, 6 figs)
Probing neutrino magnetic moment at the Jinping neutrino experiment
Creators: name: Yue, Baobiao
name: Liao, Jiajun
name: Ling, Jiajie
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Neutrino magnetic moment ($ν$MM) is an important property of massive neutrinos. The recent anomalous excess at few keV electronic recoils observed by the Xenon1T collaboration might indicate a $\sim 2.2\times10^{-11} μ_B$ effective neutrino magnetic moment ($μ_ν^{eff}$) from solar neutrinos. Therefore, it is essential to carry out the $ν$MM searches at a different experiment to confirm or exclude such hypothesis. We study the feasibility of doing $ν$MM measurement with 4 kton active mass at Jinping neutrino experiment using electron recoil data from both natural and artificial neutrino sources. The sensitivity of $μ_ν^{eff}$ can reach $1.2\times10^{-11}μ_B$ at 90\% C.L. with 10-year data taking of solar neutrinos. Besides the intrinsic low energy background $^{14}$C in the liquid scintillator, we find the sensitivity to $ν$MM is highly correlated with the systematic uncertainties of $pp$ and $^{85}$Kr. Reducing systematic uncertainties ($pp$ and $^{85}$Kr) and the intrinsic background ($^{14}$C and $^{85}$Kr) can help to improve sensitivities below these levels and reach the region of astrophysical interest. With a 3 mega-Curie (MCi) artificial neutrino source $^{51}$Cr installed at Jinping neutrino detector for 55 days, it could give us a sensitivity to the electron neutrino magnetic moment ($μ_{ν_e}$) with $1.1\times10^{-11} μ_B$ at 90\% C.L.. With the combination of those two measurements, the flavor structure of the neutrino magnetic moment can be also probed at Jinping.
description: 18 pages, 9 figures
Spatiotemporal pulses in a liquid crystal optical oscillator
Creators: name: Bortolozzo, Umberto
name: Montina, A.
name: Arecchi, Fortunato Tito
name: Huignard, J. -P.
name: Residori, Stefania
Publisher: name: arXiv
Year: 2007
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: A nonlinear optical medium results by the collective orientation of liquid crystal molecules tightly coupled to a transparent photoconductive layer. We show that such a medium can give a large gain, thus, if inserted in a ring cavity, it results in an unidirectional optical oscillator. Dynamical regimes with many interacting modes are made possible by the wide transverse size and the high nonlinearity of the liquid crystals. We show the generation of spatiotemporal pulses, coming from the random superposition of many coexisting modes with different frequencies.
Hermann Schwabedissen, Die Federmessergruppen des nordwesteuropäischen Flachlandes. Zur Ausbreitung des Spät-Magdalénien
Creators: name: Narr, Karl J.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Hermann Schwabedissen, Die Federmessergruppen des nordwesteuropäischen Flachlandes. Zur Ausbreitung des Spät-Magdalénien. Vor- und frühgeschichtliche Untersuchungen aus dem Schleswig-Holsteinischen Landesmuseum für Vor- und Frühgeschichte in Schleswig und dem Institut für Ur- und Frühgeschichte der Universitat Kiel, N. F. 9. In Verbindung mit der Gesellschaft für Schleswig-Holsteinische Geschichte begründet von Gustav Schwantes, hrsg. von Karl Kersten und Ernst Sprockhoff. Neumünster (Karl Wachholtz Verlag) 1954. 104 Seiten Text mit 23 Abbildungen und 106 Tafeln.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Ομιλητικές τάσεις στη σύγχρονη Κορέα
Creators: name: Cho, Hye Won Soohyung (Χε Ουόν Ελένη Τσο)
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Η Ορθόδοξη Εκκλησία στην Κορέα
Χριστιανισμός στην Κορέα
Ομιλίες
The Orthodox Church in Korea
Christianity in Korea
Homilies

description: Η έρευνα σύγχρονων ομιλητικών κειμένων οκτώ χριστιανικών παραδόσεων που δραστηριοποιούνται στην Κορέα, έδειξε τη σταθερή βιβλική τεκμηρίωση των απόψεων των ομιλητών και το έντονο ενδιαφέρον τους τόσο για τα προβλήματα που είναι κοινά σε όλες τις κοινωνίες σήμερα, όσο και για τα ιδιαίτερα της Κορεατικής χερσονήσου. Οι εστίες του πολέμου, η οικονομική κρίση, η εκκοσμίκευση, και η υποχώρηση των ηθικών αξιών επισημαίνονται ως ανησυχητικά φαινόμενα της εποχής. Ειδικότερα για την Κορέα, η τραυματική διαίρεσή της από το τέλος του Β’ Παγκοσμίου Πολέμου ακόμη μέχρι σήμερα, η διαφθορά των πολιτικών, η απομάκρυνση των Χριστιανών από τις εκκλησίες τους και η απώλεια του νοήματος των μεγάλων εορτών του Πάσχα και των Χριστουγέννων, υπογραμμίζονται ιδιαίτερα στις ομιλίες που εξετάστηκαν. Οι ομιλίες διατηρούν τα γενικά χαρακτηριστικά του λογοτεχνικού είδους της χριστιανικής ομιλίας με ελάχιστες αποκλίσεις, όπου τείνουν να ομοιάσουν με δοκίμιο προβληματισμού
description: The research on contemporary homiletic texts of eight Christian traditions that are active in Korea today has shown a steady biblical documentation of the speakers’ views and their deep concern about the problems, which are common to all societies in the world as well as to the Korean Peninsula. The outbreaks of war, the economic crisis, secularism, and the decline of moral values are marked as alarming phenomena of these days. Specifically for Korea, its traumatic division since the end of the Second World War to the present, the corruption of politicians, the alienation of Christians from their churches and the loss of meaning of the great feasts of Pascha and Christmas are particularly highlighted in the homilies under examination. The texts keep the general features of the literary genre of «Christian Homily» with a few exceptions, where the authors tend to follow the literary genre of «essay»
Texto: A história do sol
Creators: name: Tamuxi, Luiz
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Luíz Tamuxi conta a história do sol em mỹky.
Luíz Tamuxi tells the myth of the sun in Mỹky.
Helmut Müller, Zur spät- und nachlatènezeitlichen Vegetationsgeschichte des mitteldeutschen Trockengebietes
Creators: name: Schmitz, H.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Helmut Müller, Zur spät- und nachlatènezeitlichen Vegetationsgeschichte des mitteldeutschen Trockengebietes. Nova Acta Leopoldina, N. F. Bd. 16 Nr. 110. Leipzig (Verlag Johann Ambrosius Barth) 1953. 67 Seiten mit 11 Abbildungen im Text.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Invariance Properties of Inviscid Fluids of Grade n
Creators: name: Casal, Pierre
name: Gouin, Henri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Fluids of grade n are continuous media in dynamic changes of phases avoiding the surfaces of discontinuity and representing the capillary layers in liquid-vapour interfaces. We recall the thermodynamic form of the equation of motion for inviscid fluids of grade n. First integrals and theorems of circulation are deduced. A general classification of flows is proposed.
description: Revisited and completed version, 18 pages and 2 figures
A general framework to test gravity using galaxy clusters IV: Cluster and halo properties in DGP gravity
Creators: name: Mitchell, Myles A.
name: Hernández-Aguayo, César
name: Arnold, Christian
name: Li, Baojiu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study and model the properties of galaxy clusters in the normal-branch Dvali-Gabadadze-Porrati (nDGP) model of gravity, which is representative of a wide class of theories which exhibit the Vainshtein screening mechanism. Using the first cosmological simulations which incorporate both full baryonic physics and nDGP, we find that, despite being efficiently screened within clusters, the fifth force can raise the temperature of the intra-cluster gas, affecting the scaling relations between the cluster mass and three observable mass proxies: the gas temperature, the Compton $Y$-parameter of the Sunyaev-Zel'dovich effect and the X-ray analogue of the $Y$-parameter. Therefore, unless properly accounted for, this could lead to biased measurements of the cluster mass in tests that make use of cluster observations, such as cluster number counts, to probe gravity. Using a suite of dark-matter-only simulations, which span a wide range of box sizes and resolutions, and which feature very different strengths of the fifth force, we also calibrate general fitting formulae which can reproduce the nDGP halo concentration at percent accuracy for $0\leq z\leq1$, and halo mass function with $\lesssim3\%$ accuracy at $0\leq z\leq1$ (increasing to $\lesssim5\%$ for $1\leq z\leq 2$), over a halo mass range spanning four orders of magnitude. Our model for the concentration can be used for converting between halo mass overdensities and predicting statistics such as the nonlinear matter power spectrum. The results of this work will form part of a framework for unbiased constraints of gravity using the data from ongoing and upcoming cluster surveys.
description: 18 pages, 14 figures, 1 table; version accepted for publication in MNRAS
Kathleen M. Kenyon, Beginning in Archaeology / Siegfried J. De Laet, L’Archéologie et ses Problémes
Creators: name: Petrikovits, Harald Von
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Kathleen M. Kenyon, Beginning in Archaeology. Phoenix House Ltd., London, 1952. 203 Seiten, 9 Tafeln, 14 Textabbildungen. Siegfried J. De Laet, L’Archéologie et ses Problémes. ( = Collection Latomus XVI). Buchem-Bruxelles 1954. 156 Seiten, 12 Tafeln, 3 Textabbildungen.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Tachyon dark energy models: dynamics and constraints
Creators: name: Calcagni, Gianluca
name: Liddle, Andrew R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore the dynamics of dark energy models based on a Dirac-Born-Infeld (DBI) tachyonic action, studying a range of potentials. We numerically investigate the existence of tracking behaviour and determine the present-day value of the equation of state parameter and its running, which are compared with observational bounds. We find that tachyon models have quite similar phenomenology to canonical quintessence models. While some potentials can be selected amongst many possibilities and fine-tuned to give viable scenarios, there is no apparent advantage in choosing a DBI scalar field instead of a Klein-Gordon one.
description: 10 pages, 4 figures. v2: references added, matches the published version
Όψεις θρησκευτικής βίας στην πρωτοβυζαντινή Αίγυπτο
Creators: name: Ταχόπουλος, Ιωάννης Αριστοτέλη
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αλεξάνδρεια
Πρωτοβυζαντινή περίοδος
Ειδωλολάτρες
Alexandria
Protobyzantine period
Idolaters

description: Στην εργασία αυτή μελετώνται τα περιστατικά θρησκευτικής βίας και διενέξεων στην Αίγυπτο κατά την πρωτοβυζαντινή περίοδο. Συγκεκριμένα, παρουσιάζονται και ερμηνεύονται τα περιστατικά θρησκευτικής βίας μεταξύ Χριστιανών, Παγανιστών, Ιουδαίων και Μανιχαίων από τον 4ο αι. έως την αραβική κατάκτηση της Αιγύπτου. Επίσης, γίνεται αναφορά στο διοικητικό και εκκλησιαστικό καθεστώς της Αιγύπτου, στον ρόλο του μοναχισμού, καθώς και στο νομοθετικό πλαίσιο των συγκρούσεων, και τις συνέπειές του. Γίνεται επίσης συσχετισμός των μαρτυριών των πηγών με τις πρόσφατες αρχαιολογικές έρευνες για την βυζαντινή Αίγυπτο.
description: This thesis studies the cases of religious violence and conflict in Egypt during the protobyzantine period. Specifically, cases of religious violence between Christians, Pagans, Jews and Manicheans from the 4th century until the arab conquest of Egypt are presented and interpreted. Mention of the administrative and ecclesiastical system in Egypt is also made, as well as the role of monasticism; the legislative context of the conflicts and its results. Furthermore, the testimony of written and other sources is related to the recent archaeological surveys in byzantine-era Egypt.
Ernst Wahle, Studien zur Geschichte der prähistorischen Forschung
Creators: name: Kunkel, O.
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Ernst Wahle, Studien zur Geschichte der prähistorischen Forschung. Abhandlungen der Heidelberger Akademie der Wissenschaften, Philosophisch-historische Klasse, Jahrgang 1950, 1. Abhandlung. Heidelberg (Carl Winter, Universitatsverlag) 1950. 178 Seiten.
description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Νομοθετική και συμβατική ρύθμιση των διαδικασιών εκμετάλλευσης υδρογονανθράκων στην Ελλάδα
Creators: name: Τσιτλακίδου, Ευανθία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Υδρογονάνθρακες
Δίκαιο Υδρογονανθράκων
Έρευνα και εκμετάλλευση υδρογονανθράκων
Συμβάσεις παραχώρησης υδρογονανθράκων
Νόμος 3948/1959
Νόμος 468/1976
Νόμος 2289/1995
Ευρωπαϊκή Οδηγία 94/22/ΕΚ
Δεύτερος Γύρος Αδειοδοτήσεων
Hydrocarbons
Hydrocarbon Law
Exploration and Exploitation of hydrocarbons
Concession agreements for hydrocarbons
Law 3948/1959
Law 468/1976
Law 2289/1995
Directive 94/22/EU
Second (2nd) International Licensing Round

description: Η παρούσα εργασία στόχο έχει να προσεγγίσει το πώς οι δραστηριότητες αναζήτησης, έρευνας και εκμετάλλευσης υδρογονανθράκων αντιμετωπίστηκαν στο πέρασμα των χρόνων, μέχρι και σήμερα, στον ελλαδικό χώρο. Προς επίτευξη του στόχου αυτού, στην εργασία γίνεται μία λεπτομερής καταγραφή του νομοθετικού περιβάλλοντος από τα μέσα του 20ου αιώνα, οπότε και για πρώτη φορά ο έλληνας νομοθέτης επιδίωξε να προσελκύσει ξένες επενδύσεις, προκειμένου για την ανάπτυξη αυτών των δραστηριοτήτων, μέχρι και τις πρόσφατες νομοθετικές εξελίξεις που επέδρασαν στη διαμόρφωση του σύγχρονου νομικού πλαισίου γύρω από τις δραστηριότητες αυτές. Η εργασία επιδιώκει να εστιάσει στο ποια ήταν τα κίνητρα που κάθε φορά ο νομοθέτης επέλεξε να εντάξει στο νομικό πλαίσιο, και παραλληλίζοντάς τα με τις ιστορικές- πολιτικές εξελίξεις, ο αναγνώστης μπορεί να καταλήξει στο, αν τα κίνητρα αυτά πέτυχαν τον νομοθετικό στόχο, υπό το φως των τριών συμβάσεων παραχώρησης της έρευνας και εκμετάλλευσης υδρογονανθράκων που υπεγράφησαν την 14 Μαΐου 2014 και οι οποίες κυρώθηκαν με τυπικό νόμο.
description: This paper aims to examine how regulation for exploration and exploitation of Hydrocarbons developed and optimized throughout the years in modern Greece. In the chapters of this paper, there is detailed analysis of the country’s legislative system from the mid-20th century, when Greek legislator first attempted to attract foreign investments, thus implementing an initiative that would become part of the current regulation. This paper will put into context the influence of the political climate of the times on the motives of the legislators in their decision-making process, offering a thorough overview of the shaping of the system. Ultimately, the reader must reach his own conclusions as to whether these legal decisions were successful under the light of three concessions that were signed and approved on May 14, 2014, which pledge the right to exploration and exploitation of hydrocarbons.
Neural networks for legal quantum prediction
Creators: name: Terrett, Andrew J.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis argues that Artificial Neural Networks (ANN's) have applications within the domain of law and can be built using readily available Artificial Intelligence software for the Personal Computer. In order to demonstrate this, I have built working ANN's using data made available to me by the Faculty of Law Artificial Intelligence Research Project (FLAIR) and Windows™-based ANN software that is commercially available. The reasons for building a system are three-fold. First, a working system is the most graphic demonstration of my above assertion. Secondly, given my background as a practitioner in law, I am concerned to ensure the quick, efficient movement of law-related technology from research laboratory to marketplace. Thirdly, the building of a neural network avails me with the opportunity to analyze comparatively the performance of the ANN's with statistical and expert system models which used the same data and were also built at the FLAIR project. The theoretical foundation for this thesis is the view that, although many legal decisions are often reducible to a set of doctrines, policies or sub-doctrinal rules, certain domains of legal decision-making evade analysis using a rule-based paradigm. Thus, although relational patterns between any given facts and the law exist, they cannot always be described. Therefore in order to build "intelligent" computer programs that can assist the lawyer in his or her work, we should explore the potential of and utilize those tools that can find relational patterns automatically. Having done this, we should attempt to combine the same with those software tools that we understand more fully, namely expert systems and traditional programming methods. The use of hybrid neural network/expert system programs is well developed in many other domains. Legal researchers, however, have yet to even thoroughly examine neural networks as an isolated technology. This thesis is an attempt to right this imbalance.
Open Source Software in the Spectrum of Open Science
Creators: name: Ringuette, Rebecca
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science, Software, NASA SPD-41a, Heliophysics, FAIR, publication, validation, modeling, simulations

description: As the science community moves towards FAIR research artifacts and open science practices, there is a need to understand what is needed for software, both from the community's perspective and from the repository and policy perspectives. This short presentation first introduces the basics of open science, open source software, and FAIR, then sketches out the main issues and goals for the work needed in these areas for software. Software is loosely divided into four overlapping categories, namely mission software, software associated with publications, general use software, and modeling and simulation software. A working groups, multiple workshops, and a slide deck with open comments are mentioned at the end as ways to get involved in the conversation and contribute to the work needed. Oral presentation given at the 2023 DASH workshop.
Faster algorithms for quantitative verification in constant treewidth graphs
Creators: name: Chatterjee, Krishnendu
name: Ibsen-Jensen, Rasmus
name: Pavlogiannis, Andreas
Publisher: name: IST Austria
Year: 2015
Subjects: 000 Computer science, knowledge & general works

description: We consider the core algorithmic problems related to verification of systems with respect to three classical quantitative properties, namely, the mean- payoff property, the ratio property, and the minimum initial credit for energy property. The algorithmic problem given a graph and a quantitative property asks to compute the optimal value (the infimum value over all traces) from every node of the graph. We consider graphs with constant treewidth, and it is well-known that the control-flow graphs of most programs have constant treewidth. Let n denote the number of nodes of a graph, m the number of edges (for constant treewidth graphs m = O ( n ) ) and W the largest absolute value of the weights. Our main theoretical results are as follows. First, for constant treewidth graphs we present an algorithm that approximates the mean-payoff value within a mul- tiplicative factor of ∊ in time O ( n · log( n/∊ )) and linear space, as compared to the classical algorithms that require quadratic time. Second, for the ratio property we present an algorithm that for constant treewidth graphs works in time O ( n · log( | a · b · n | )) = O ( n · log( n · W )) , when the output is a b , as compared to the previously best known algorithm with running time O ( n 2 · log( n · W )) . Third, for the minimum initial credit problem we show that (i) for general graphs the problem can be solved in O ( n 2 · m ) time and the associated decision problem can be solved in O ( n · m ) time, improving the previous known O ( n 3 · m · log( n · W )) and O ( n 2 · m ) bounds, respectively; and (ii) for constant treewidth graphs we present an algorithm that requires O ( n · log n ) time, improving the previous known O ( n 4 · log( n · W )) bound. We have implemented some of our algorithms and show that they present a significant speedup on standard benchmarks.
Open Source Software in the Spectrum of Open Science
Creators: name: Ringuette, Rebecca
Publisher: name: Zenodo
Year: 2023
Subjects: Open Science, Software, NASA SPD-41a, Heliophysics, FAIR, publication, validation, modeling, simulations

description: As the science community moves towards FAIR research artifacts and open science practices, there is a need to understand what is needed for software, both from the community's perspective and from the repository and policy perspectives. This short presentation first introduces the basics of open science, open source software, and FAIR, then sketches out the main issues and goals for the work needed in these areas for software. Software is loosely divided into four overlapping categories, namely mission software, software associated with publications, general use software, and modeling and simulation software. A working groups, multiple workshops, and a slide deck with open comments are mentioned at the end as ways to get involved in the conversation and contribute to the work needed.

Oral presentation given at the 2023 DASH workshop.
Long Term Friction: from Stick-Slip to Stable Sliding
Creators: name: Voisin, Christophe
name: Renard, Francois
name: Grasso, Jean-Robert
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have devised an original laboratory experiment where we investigate the frictional behaviour of a single crystal salt slider over a large number of deformation cycles. Because of its physical properties, salt, a surrogate for natural faults, allows for friction and plastic deformation and pressure solution creep to be efficient on the same timescale. During the same experiment, we observe a continuous change of the frictional behaviour of the slider under constant conditions of stiffness, temperature and loading velocity. The stick-slip regime is progressively vanishing, eventually reaching the stable sliding regime. Concomitantly, the contact interface, observed under the microscope, develops a striated morphology with contact asperities increase in length and width, arguing for an increase in the critical slip distance dc. Complementary experiments including velocity jumps show that the frictional parameters of the rate and state friction law, a and b, progressively vanish with the cumulative slip. In our experimental conditions, the ultimate stage of friction is therefore rate and state independent.
description: 10 pages; 4 figures; 1 Table
Anomalous couplings in Higgs-boson pair production at approximate NNLO QCD
Creators: name: de Florian, Daniel
name: Fabre, Ignacio
name: Heinrich, Gudrun
name: Mazzitelli, Javier
name: Scyboz, Ludovic
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We combine NLO predictions with full top-quark mass dependence with approximate NNLO predictions for Higgs-boson pair production in gluon fusion, including the possibility to vary coupling parameters within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. We study the impact of the anomalous couplings on various observables, and present Higgs-pair invariant-mass distributions at seven benchmark points characterising different $m_{hh}$ shape types. We also provide numerical coefficients for the approximate NNLO cross section as a function of the anomalous couplings at $\sqrt{s}=14$ TeV.
description: 23 pages, 5 figures; v2: matches the published version
Site-selective $^{63}$Cu NMR study of the vortex cores of Tl$_{2}$Ba$_{2}$CuO$_{6+δ}$
Creators: name: Itoh, Y.
name: Michioka, C.
name: Yoshimura, K.
name: Hayashi, A.
name: Ueda, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report site-selective $^{63}$Cu NMR studies of the vortex core states of an overdoped Tl$_{2}$Ba$_{2}$CuO$_{6+δ}$ with $T_{c}$ = 85 K. We observed a relatively high density of low-energy quasi-particle excitations at the vortex cores in a magnetic field of 7.4847 T along the c axis, in contrast to YBa$_{2}$Cu$_{3}$O$_{7-δ}$.
description: 5 pages, 6 figures, submitted to J. Phys. Chem. Solids (QuB2006, Tokai)
Faster algorithms for quantitative verification in constant treewidth graphs
Creators: name: Chatterjee, Krishnendu
name: Ibsen-Jensen, Rasmus
name: Pavlogiannis, Andreas
Publisher: name: IST Austria
Year: 2015
Subjects: 000 Computer science, knowledge & general works

description: We consider the core algorithmic problems related to verification of systems with respect to three classical quantitative properties, namely, the mean-payoff property, the ratio property, and the minimum initial credit for energy property. The algorithmic problem given a graph and a quantitative property asks to compute the optimal value (the infimum value over all traces) from every node of the graph. We consider graphs with constant treewidth, and it is well-known that the control-flow graphs of most programs have constant treewidth. Let $n$ denote the number of nodes of a graph, $m$ the number of edges (for constant treewidth graphs $m=O(n)$) and $W$ the largest absolute value of the weights. Our main theoretical results are as follows. First, for constant treewidth graphs we present an algorithm that approximates the mean-payoff value within a multiplicative factor of $\epsilon$ in time $O(n \cdot \log (n/\epsilon))$ and linear space, as compared to the classical algorithms that require quadratic time. Second, for the ratio property we present an algorithm that for constant treewidth graphs works in time $O(n \cdot \log (|a\cdot b|))=O(n\cdot\log (n\cdot W))$, when the output is $\frac{a}{b}$, as compared to the previously best known algorithm with running time $O(n^2 \cdot \log (n\cdot W))$. Third, for the minimum initial credit problem we show that (i)~for general graphs the problem can be solved in $O(n^2\cdot m)$ time and the associated decision problem can be solved in $O(n\cdot m)$ time, improving the previous known $O(n^3\cdot m\cdot \log (n\cdot W))$ and $O(n^2 \cdot m)$ bounds, respectively; and (ii)~for constant treewidth graphs we present an algorithm that requires $O(n\cdot \log n)$ time, improving the previous known $O(n^4 \cdot \log (n \cdot W))$ bound. We have implemented some of our algorithms and show that they present a significant speedup on standard benchmarks.
Texto: A história da mãe
Creators: name: Tamuxi, Luiz
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Luíz Tamuxi conta a história da mãe dele.
Luíz Tamuxi tells about the life of his mother.
Bericht über die Tätigkeit des Vereins von Altertumsfreunden im Rheinlande für die Jahre 1954 bis 1956
Creators: name: Böhner, Kurt
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Bonner Jahrbücher, Bd. 155/156, 2.1955/1956: Bonner Jahrbücher
Peri-urban land in Ethiopia
Creators: name: Tesfaye, Eshetayehu Kinfu
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 710 Civic & landscape art

description: In Ethiopia, new settlement forms are emerging consequent to the nation’s rapid urbanization and horizontal expansion of the urban centres. The growing significance of secondary and small cities and towns and the rapid proliferation of peri-urban settlements are among these new urban forms. Peri-urbanization became the dominant form of spatial transformations at the peripheries, which resulted in a severe state-community conflicts yielding resistance to urban growth and planning and protests that grew into deadly violence.
Nucleosynthesis and Evolution of Massive Metal-Free Stars
Creators: name: Heger, Alexander
name: Woosley, S. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The evolution and explosion of metal-free stars with masses 10--100 solar masses are followed, and their nucleosynthetic yields, light curves, and remnant masses determined. When the supernova yields are integrated over a Salpeter initial mass function, the resulting elemental abundance pattern is qualitatively solar, but with marked deficiencies of odd-Z elements with 7 <= Z <= 13. Neglecting the contribution of the neutrino wind from the neutron stars that they make, no appreciable abundances are made for elements heavier than germanium. The computed pattern compares favorably with what has been observed in metal-deficient stars with [Z] ~< -3. Most of the stars end their lives as blue supergiants and make supernovae with distinctive light curves resembling SN 1987A, but some produce primary nitrogen by dredge up and become red supergiants. A novel automated fitting algorithm is developed for determining optimal combinations of explosion energy, mixing, and initial mass function in the large model data base to agree with specified data sets. The model is applied to the low metallicity sample of Cayrel et al. (2004) and the two ultra-iron-poor stars HE0107-5240 and HE1327-2326. Best agreement with these low metallicity stars is achieved with very little mixing, and none of the metal-deficient data sets considered show the need for a high energy explosion component. To the contrary, explosion energies somewhat less than 1.2 B seem to be preferred in most cases. (abbreviated)
description: 54 pages, 15 figures, submitted to ApJ; online tables and supplementary information available at http://firststars.org/znuc