cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Η οριζόντια ιδιοκτησία από το εθιμικό δίκαιο των Κυκλάδων στο Εθνικό Κτηματολόγιο
Creators: name: Περπερίδου, Ελπίδα Πέτρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Κυκλαδικό έθιμο
Οριζόντια ιδιοκτησία
Εθνικό Κτηματολόγιο
Customary law of Cyclades
Horizontal property
National Cadastre

description: Σκοπός της παρούσας διπλωματικής εργασίας υπήρξε η μελέτη του θεσμού της οριζόντιας ιδιοκτησίας κατά το κυκλαδικό έθιμο που επικράτησε στα νησιά του Αιγαίου ήδη από την περίοδο της φραγκοκρατίας. Μετά από μια σύντομη ιστορική επισκόπηση αυτού του ιδιότυπου θεσμού οροφοκτησίας, εντοπίσαμε όλους εκείνους τους λόγους πολιτικής, οικονομικής και κοινωνικής αναγκαιότητας που οδήγησαν στην εμφάνιση και ανάπτυξή του. Στη συνέχεια, προσεγγίσαμε το έθιμο εννοιολογικά και κατά περιεχόμενο, αντιδιαστέλλοντάς το από συγγενείς θεσμούς όπως η επιφάνεια και η οριζόντια ιδιοκτησία κατά το ν.3741/1929. Ακόμα, εξετάσαμε αν και μετά την εισαγωγή του Αστικού Κώδικα εξακολουθούν να ισχύουν και να διέπονται από τους ορισμούς του του καταργηθέντος εθίμου τα ήδη δημιουργηθέντα (υπό την ισχύ του κυκλαδικού εθίμου) δικαιώματα αποκλειστικής κυριότητας σε ορόφους οικοδομής. Επίσης, καταγράψαμε τη σημαντικότερη νομολογία των ελληνικών δικαστηρίων από τις απαρχές του 20ου αι. έως και σήμερα και διαπιστώσαμε ότι συγκλίνει στα περισσότερα ζητήματα που εγείρονται σχετικά με το θεσμό. Τέλος, ασχοληθήκαμε με την κτηματολογική διάσταση του κυκλαδικού εθίμου τόσο από τεχνικής απόψεως ως «ειδικού ιδιοκτησιακού αντικειμένου», όσο και νομολογιακώς, με την αναλυτική παρουσίαση τριών αδημοσίευτων δικαστικών αποφάσεων στις οποίες ο κτηματολογικός δικαστής με ευθυκρισία αναγνωρίζει το τοπικό περί οροφοκτησίας εθιμικό δίκαιο και διατάσσει τη διόρθωση ως ανακριβών των κτηματολογικών εγγραφών οι οποίες δείχνουν να το αγνοούν.
description: The aim of the present thesis was the study of the institution of horizontal property according to the customary law of Cyclades, which was established there since the rule of the Franks. By briefly examining this sui generis institution of horizontal ownership, we detected all the political, economical and social reasons that led to its emergence and consolidation. Then we analyzed the meaning and the content of the customary law by differentiating it from similar institutions, such as the right of superficies and horizontal property according to law no. 3741 of 1929. Furthermore, we examined whether existing ownership rights over flats still exist under the provisions of the Greek Civil Code. We also made a list of the greek case-law related to the institution, from the beginning of the 20th century to now and we noticed that there is a settled case-law regarding the arising issues. Finally, we examined the institution within the framework of the National Cadastre as “Special Real Property Objects (SPRO)” and we presented three court decisions in which the cadastral judge recognizes the customary law and orders the correction of cadastral registrations that seem to ignore it.
Δυνατότητες και μοντέλα ανάπτυξης ΦΟ.Σ.Ε. στα πλαίσια των εναρμονισμένων με το TARGET MODEL νέων αγορών ηλεκτρικής ενέργειας – Ευρωπαϊκή εμπειρία
Creators: name: Κυανίδης, Φίλιππος Σπυρίδωνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Φορείς σωρευτικής εκπροσώπησης (ΦΟ.Σ.Ε)
Ανανεώσιμες Πηγές Ενέργειας (Α.Π.Ε)
Μοντέλο Στόχου
Energy Aggregators
Renewable Energy Sources
Target Model

description: Ο σκοπός της παρούσας διπλωματικής είναι να αναλύσει την έννοια του Φορέα Σωρευτικής Εκπροσώπησης στις νέες αγορές ηλεκτρικής ενέργειας που θα εναρμονίζονται με το ευρωπαϊκό Μοντέλο Στόχου, καθώς επίσης και να επιχειρήσει την περιγραφή των επιχειρηματικών μοντέλων που θα μπορούσαν να ικανοποιήσουν τις ανάγκες ενός τέτοιου φορέα σωρευτικής εκπροσώπησης και τα δομικά στοιχεία των φορέων αυτών. Επίσης διερευνάται και το είδος της αξίας που προσδοκάται να προστεθεί στο σύστημα από την λειτουργία των φορέων αυτών καθώς και οι διαφορετικές αγορές στις οποίες αυτοί θα μπορούσαν να παράγουν αξία. Παρουσιάζονται ακόμη ευρωπαϊκά παραδείγματα τέτοιων φορέων που είναι ήδη σε λειτουργία καθώς και φορέων που αναμένεται να ξεκινήσουν την λειτουργία τους στο άμεσο μέλλον.
description: The aim of the present thesis is to analyze the concept of Energy Aggregator in the new electricity markets that will comply with the European Target Model, as well as to attempt to describe the business models and the building blocks that could meet the needs of such aggregators. It also explores the type of value that is expected to be added to the system by the operation of these institutions as well as the different markets in which they could produce additional value. There are also European examples of such Energy Aggregators already in operation as well as aggregators expected to start operating in the near future.
Microscopic Theory of Exciton-Exciton Annihilation in Two-Dimensional Semiconductors
Creators: name: Steinhoff, Alexander
name: Florian, Matthias
name: Jahnke, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Auger-like exciton-exciton annihilation (EEA) is considered the key fundamental limitation to quantum yield in devices based on excitons in two-dimensional (2d) materials. Since it is challenging to experimentally disentangle EEA from competing processes, guidance of a quantitative theory is highly desirable. The very nature of EEA requires a material-realistic description that is not available to date. We present a many-body theory of EEA based on first-principle band structures and Coulomb interaction matrix elements that goes beyond an effective bosonic picture. Applying our theory to monolayer MoS$_2$ encapsulated in hexagonal BN, we obtain an EEA coefficient in the order of $10^{-3}$ cm$^{2}$s$^{-1}$ at room temperature, suggesting that carrier losses are often dominated by other processes, such as defect-assisted scattering. Our studies open a perspective to quantify the efficiency of intrinsic EEA processes in various 2d materials in the focus of modern materials research.
A cross-disciplinary comparison of research article abstacts: A corpus-based study
Creators: name: Κορδαλή, Χριστιάνα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Ρητορική δομή
Ακαδημαϊκό λεξιλόγιο
Περιλήψεις ερευνητικών άρθρων
Rhetorical analysis, move analysis
Academic vocabulary, hedges, boosters
Cross-disciplinary

description: The Research Article Abstract is an academic genre that has attracted lots of interest because of its importance in the academia. The present study attempts to shed light in cross-disciplinary variations in research article abstracts from the fields of Physics and Linguistics in terms of their rhetorical structure, their use of metadiscoursal elements and academic vocabulary. For the purposes of the present study four corpora were compiled, consisting of research article abstracts from scientific journals in (a) theoretical linguistics, (b) applied linguistics, (c) theoretical physics and (d) applied physics. The findings of the study reveal specific similarities and differences between abstracts from different disciplines. Suggestions are made concerning possible uses of the research findings in the English for Academic Purposes classroom.
description: Η περίληψη του ερευνητικού άρθρου είναι ένα ακαδημαΐκό είδος που έχει προσελκύσει το ενδιαφέρον πολλών ερευνητών λόγω της σημασία της στην ακαδημαϊκή κοινότητα. Η παρούσα έρευνα προσπαθεί να ρίξει φως στις διαφοροποιήσεις των περιλήψεων ανάλογα με το επιστημονικό πεδίο στο οποίο ανήκουν καθώς και στη χρήση μεταγλωσσικών στοιχείων και ακαδημαϊκού λεξιλογίου. Για τους σκοπούς της παρούσας έρευνας συντάχθηκαν 4 σώματα κειμένων αποτελούμενα από περιλήψεις δημοσιευμένων ερευνητικών άρθρων από τα πεδία α) θεωρητική γλωσσολογία, β) εφαρμοσμένη γλωσσολογία, γ) θεωρητική φυσική και εφαρμοσμένη φυσική. Τα ευρήματα της έρευνας δείχουν συγκεκριμένες ομοιότητες και διαφορές ανάμεσα στις περιλήψεις διαφορετικών επιστημονικών πεδίων. Η έρευνα ακολουθείται από προτάσεις που αφορούν πιθανές χρήσεις των ευρημάτων στη διδασκαλία αγγλικών για ειδικούς σκοπούς.
Texto: O remédio contra a morte
Creators: name: Kanuxi, Manoel
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Sentado na beira do fogo, Manoel Kanuxi conta a história do homem que achou um remédio para sarar da morte, e a esposa dele que foi morta por um pagé inimigo. Tem um arquivo de áudio com a história em português.
Sitting by an open fire, Manoel Kanuxi tells the myth of the man who found a medicine against death, and his wife, who was murdered by an enemy shaman. In a separate audio file, he tells it in Portuguese.
Probing the lightest new gauge boson $B_H$ in the littlest Higgs model via the processes $γγ\to f\bar{f}B_H$ at the ILC
Creators: name: Wang, Xuelei
name: Liu, Suzhen
name: Zeng, Qingguo
name: Jin, Zhenlan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The neutral gauge boson $B_H$ with the mass of hundreds GeV, is the lightest particle predicted by the littlest Higgs(LH) model, and such particle should be the first signal of the LH model at the planed ILC if it exists indeed. In this paper, we study some processes of the $B_H$ production associated with the fermion pair at the ILC, i.e., $γγ\to f\bar{f}B_{H}$. The studies show that the most promising processes to detect $B_H$ among $γγ\to f\bar{f}B_{H}$ are $γγ\to l'^+l'^-B_{H}(l'=e,μ)$, and they can produce the sufficient signals in most parameter space preferred by the electroweak precision data at the ILC. On the other hand, the signal produced via the certain $B_H$ decay modes is typical and such signal can be easily identified from the SM background. Therefore, $B_H$, the lightest gauge boson in the LH model would be detectable at the photon collider realized at the ILC.
description: 12 pages, 4 figures
Affleck Dine leptogenesis via multiple flat directions
Creators: name: Kamada, Kohei
name: Yokoyama, Jun'ichi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the Affleck-Dine mechanism when multiple flat directions have large values simultaneously. We consider in detail the case when both $LH_u$ and $H_uH_d$ flat directions are operative with a non-renormalizable superpotential. In case Hubble induced A-terms are present for these two flat directions, their initial values are determined completely by the potential and there are no ambiguities how they are mixed. Moreover, CP is violated even when the Hubble parameter is large due to the Hubble induced A-term and cross coupling in F-term, so that the lepton asymmetry is generated just after the end of inflation. As a result, compared with the case of single flat direction, the resultant lepton-to-entropy ratio is enhanced by a factor of $H_{osc}/m_{3/2}$, where $H_{osc}$ is the Hubble parameter at the onset of oscillation and $m_{3/2}$ is the gravitino mass. However, when Hubble induced A-terms do not exist, there remains indefiniteness of initial phases and CP is violated spontaneously by the phase difference between initial phase and potential minima of the hidden-sector induced A-terms. Therefore, CP-violation is not effective until the onset of the oscillation of scalar fields around the origin and there is suppression factor from thermal effect as is the case of single flat direction. In this case, the amplitude of baryon isocurvature perturbation imposes constraints on the model parameters.
description: 18 pages, 8 figures
Η έννοια της ελευθερίας στο έργο του Benjamin Constant: Ερμηνεία με βάση την πολιτική θεωρία και το ιστορικό πλαίσιο και κριτική προσέγγιση
Creators: name: Γρηγοριάδης, Κωνσταντίνος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Benjamin Constant
Φιλελευθερισμός
Νεώτερη ελευθερία
Liberalism
Modern liberty

description: Σκοπός της διπλωματικής εργασίας είναι η ερμηνεία της ελευθερίας στο έργο του φιλελεύθερου στοχαστή του 19ου αιώνα, Benjamin Constant, με τη συνδρομή της πολιτικής θεωρίας και του ιστορικού πλαισίου και η κριτική προσέγγιση στις θέσεις του αναφορικά με τη σχέση ατομικής και πολιτικής ελευθερίας. Η ερμηνεία της έννοιας έχει ως βάση δύο έργα του στοχαστή, τη διάλεξη του 1819 για την ελευθερία των αρχαίων και εκείνη των νέων, καθώς και το έργο «Αρχές Πολιτικής εφαρμόσιμες προς όλες τις αντιπροσωπευτικές κυβερνήσεις». Η συνεισφορά του ιστορικού πλαισίου, επίσης, περιγράφει το διανοητικό πλαίσιο, γύρω από το οποίο ο στοχαστής διατυπώνει τις ιδέες του, καθώς έρχεται αντιμέτωπος τόσο με τα πολιτικά γεγονότα στη Γαλλία από το τέλος της Επανάστασης, όσο και με τις απόψεις άλλων στοχαστών. Η κριτική προσέγγιση επικεντρώνεται στη βασική διάκριση ανάμεσα στην ελευθερία των αρχαίων και εκείνη των νέων αναλύοντας σημαντικές παράμετρους του πολιτικού βίου της αθηναϊκής πόλης κράτους και αναπτύσσοντας θεωρητικές ενστάσεις στα επιχειρήματα του Constant.
description: The purpose of this thesis is the interpretation of liberty in the work of the liberal thinker of 19th century, Benjamin Constant, with the assistance of his political theory and the historical context and also the critical approach to his views with regard to the relation among individual and political liberty. The interpretation of the concept is based in two works, the lecture of 1819 on the liberty of ancients compared with that of the moderns, as also the work «Principles of Politics applicable to all representative governments». The contribution of historical context describes the intellectual framework around which the thinker articulates his ideas, as he faces so the political events after the end of the French Revolution as the approaches of other theorists. The critical approach is focused in the basic distinction between the liberty of the ancients and that of the moderns elaborating important aspects of the Athenian city-state’s political life and developing theoretical objections against Constant’s arguments.
Influence of the statistical shift of Fermi level on the conductivity behavior in microcrystalline silicon
Creators: name: Ram, Sanjay K.
name: Kumar, Satyendra
name: Cabarrocas, P. Roca i
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electrical conductivity behavior of highly crystallized undoped hydrogenated microcrystalline silicon films having different microstructures was studied. The dark conductivity is seen to follow Meyer Neldel rule (MNR) in some films and anti MNR in others, depending on the details of microstructural attributes and corresponding changes in the effective density of states distributions. A band tail transport and statistical shift of Fermi level are used to explain the origin of MNR as well as anti-MNR in our samples. We present the evidence of anti-MNR in the various experimental transport data of microcrystalline silicon materials reported in literature and analyze these data together with ours to show the consistency and physical plausibility of statistical shift model. The calculated MNR parameters and other significant material parameters derived therefrom are tenable for a wide microstructural range of the microcrystalline silicon system.
description: 10 pages, 4 figures, changed content and corrected typos
When information sharing becomes an event: An example of Private-Public Film Screenings
Creators: name: Davis, Sara
name: Greifeneder, Elke
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: Film
subject: Vertrieb
subject: Privathaushalt
subject: Distribution
subject: Private household
subject: Empirical study
subject: 020 Bibliotheks- und Informationswissenschaften
subject: Particulier
subject: Etude empirique

description: Private-Public Screenings ist ein neuer Ansatz des Filmvertriebs, in den es vor allem darum geht, Menschen zu verbinden. Bei diesem Ansatz erhalten Privatpersonen gratis Zugang zum Film und werden gleichzeitig eingeladen, die Filmvorführung für andere zu öffnen, so dass das Teilen von Information zu einer sozialen Aktivität wird. Diese Studie untersuchte inwieweit diese Veranstaltungen tatsächlich offen sind, indem erfasst wurde, ob und inwieweit die Gastgeber der Filmvorführungen diese für Fremde geöffnet haben. Ergebnisse eines Fragebogens unter 135 Gastgebern des vergangenen Private-Public Screenings zeigen, dass Menschen in der Tat ihre eigenen Wohnungen für Fremde geöffnet haben, um gemeinsam selbst ein Ereignis um einen Film herum zu schaffen.
description: Private-Public Screenings is a new film distribution method aimed specifically at connecting people. Its purpose is to provide a film to private persons free of charge and encourage them to share the film in a public way, so that sharing information becomes a social activity. This research investigated the extent of openness of these events. It examined whether or not people who host Private-Public Screenings actually make them public. Results of a survey among 135 hosts of a recent run of Private-Public Screenings show that people have indeed opened their homes to strangers for the purpose of creating an event and sharing a film.
description: Les projections de films public-privé représentent une nouvelle approche de la distribution de films visant singulièrement à relier les gens. Dans cette approche, des particuliers bénéficient d’un accès gratuit au film et sont invités en même temps à ouvrir la projection du film à d’autres personnes, de sorte que le partage d’informations devienne une activité sociale. Cette étude examine dans quelle mesure ces événements sont effectivement ouverts en vérifiant si et dans quelle mesure les hôtes de ces projections les ont ouvertes à des tiers. Les résultats d’un questionnaire auprès de 135 hôtes des dernières projections public-privé montrent que les particuliers ont en effet ouvert leurs maisons à des tiers dans le but de mettre sur pied un événement autour d’un film.
Texto: A história dos animais
Creators: name: Kanuxi, Manoel
name: Bardagil Mas, Bernat
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: Manoki language

description: Na sua aldeia de Asa Branca, o cacique Manoel Kanuxi conta a história da origem dos animais em língua mỹky. Tem um arquivo de áudio com a história em português.
In his home village of Asa Branca, chief Manoel Kanuxi tells the myth of the origin of animals in Mỹky. In a separate audio file, he tells it in Portuguese.
On the selection of AGN neutrino source candidates for a source stacking analysis with neutrino telescopes
Creators: name: al., A. Achterberg et
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The sensitivity of a search for sources of TeV neutrinos can be improved by grouping potential sources together into generic classes in a procedure that is known as source stacking. In this paper, we define catalogs of Active Galactic Nuclei (AGN) and use them to perform a source stacking analysis. The grouping of AGN into classes is done in two steps: first, AGN classes are defined, then, sources to be stacked are selected assuming that a potential neutrino flux is linearly correlated with the photon luminosity in a certain energy band (radio, IR, optical, keV, GeV, TeV). Lacking any secure detailed knowledge on neutrino production in AGN, this correlation is motivated by hadronic AGN models, as briefly reviewed in this paper. The source stacking search for neutrinos from generic AGN classes is illustrated using the data collected by the AMANDA-II high energy neutrino detector during the year 2000. No significant excess for any of the suggested groups was found.
description: 43 pages, 12 figures, accepted by Astroparticle Physics
Subproton-scale Intermittency in Near-Sun Solar Wind Turbulence Observed by the Parker Solar Probe
Creators: name: Chhiber, Rohit
name: Matthaeus, William H.
name: Bowen, Trevor A.
name: Bale, Stuart D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Geophysics (physics.geo-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: High time-resolution solar wind magnetic field data is employed to study statistics describing intermittency near the first perihelion (~35.6 Rs) of the Parker Solar Probe mission. A merged dataset employing two instruments on the FIELDS suite enables broadband estimation of higher order moments of magnetic field increments, with five orders established with reliable accuracy. The duration, cadence, and low noise level of the data permit evaluation of scale dependence of the observed intermittency from the inertial range to deep subproton scales. The results support multifractal scaling in the inertial range, and monofractal but non-Gaussian scaling in the subproton range, thus clarifying suggestions based on data near Earth that had remained ambiguous due to possible interference of the terrestrial foreshock. The physics of the transition to monofractality remains unclear but we suggest that it is due to a scale-invariant population of current sheets between ion and electron inertial scales; the previous suggestion of incoherent kinetic-scale wave activity is disfavored as it presumably leads to re-Gaussianization which is not observed.
description: Accepted for publication in The Astrophysical Journal Letters
Η σχέση της Αναγκαστικής Εκτέλεσης με τις διαρκείς έννομες σχέσεις
Creators: name: Δρούγκα, Ελένη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αναγκαστική Εκτέλεση
Μίσθωση
N.4335/2015
Enforcement
Lasting Legal Relationships
Leasehold

description: Σκοπό της παρούσας μεταπτυχιακής εργασίας διπλωματικής εργασίας αποτελεί η ερμηνευτική ανάλυση του αρθρ.1009 ΚΠολΔ στην παλαιότερη του μορφή σε συνδυασμό με τις τροποποιήσεις που επέφερε σε αυτό ο νόμος 4335/2015, υπό το πρίσμα της σχέσης της αναγκαστικής εκτέλεσης με τη διαρκή έννομή σχέση της μίσθωσης, καθώς και των ζητημάτων δικονομικού διαχρονικού δικαίου που προκύπτουν.Στα πλαίσια αυτά, η εξετάστηκε, διά της συνδυαστικής ερμηνείας των διατάξεων του Αστικού Κώδικα, του ΚΠολΔ και των ειδικών νόμων που ρυθμίζουν εξειδικευμένες περιπτώσεις μισθώσεων, η σχέση της αναγκαστικής εκτέλεσης με την διαρκή έννομη σχέση της μίσθωσης. Ακόμη, αναφερθήκαμε αναλυτικά και με κριτική σκοπιά στο αρθρ.1009 ΚΠολΔ, στους λόγους που οδήγησαν στην τροποποίηση του, και στα προβλήματα που κλήθηκε η τροποποίηση τούτη να επιλύσει.
description: The aim of the present thesis is an interpretative analysis of Article 1009 of the Code of Civil Procedure in its earlier form, in conjunction with the amendments made to it by Law 4335/2015, in the light of the relationship between enforcement and the permanent relationship of the lease, as well as the issues of procedural time that arise. In this context, the combination of enforcement and the continuous legal relationship of the lease was examined through the combined interpretation of the provisions of the Civil Code, the Code of Civil Procedure and the special laws regulating specialized leases. We have also discussed extensively and critically the Article 1009 of the Code of Civil Procedure, the reasons for its amendment, and the problems that this amendment was called to resolve.
Black hole induced spins from hyperbolic encounters in dense clusters
Creators: name: Jaraba, Santiago
name: Garcia-Bellido, Juan
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The black holes that have been detected via gravitational waves (GW) can have either astrophysical or primordial origin. Some GW events show significant spin for one of the components and have been assumed to be astrophysical, since primordial black holes are generated with very low spins. However, it is worth studying if they can increase their spin throughout the evolution of the universe. Possible mechanisms that have already been explored are multiple black hole mergers and gas accretion. We propose here a new mechanism that can occur in dense clusters of black holes: the spin-up of primordial black holes when they are involved in close hyperbolic encounters. We explore this effect numerically with the Einstein Toolkit for different initial conditions, including variable mass ratios. For equal masses, there is a maximum spin that can be induced on the black holes, $χ= a/m \leq 0.2$. We find however that for large mass ratios one can attain spins up to $χ\simeq 0.8$, where the highest spin is induced on the most massive black hole. For small induced spins we provide simple analytical expressions that depend on the relative velocity and impact parameter.
description: 12 pages, 11 figures. Changes match published version
The complexity of evolutionary games on graphs
Creators: name: Chatterjee, Krishnendu
name: Ibsen-Jensen, Rasmus
name: Nowak, Martin
Publisher: name: IST Austria
Year: 2015
Subjects: 000 Computer science, knowledge & general works
570 Life sciences; biology

description: Evolution occurs in populations of reproducing individuals. The structure of the population affects the outcome of the evolutionary process. Evolutionary graph theory is a powerful approach to study this phenomenon. There are two graphs. The interaction graph specifies who interacts with whom in the context of evolution.The replacement graph specifies who competes with whom for reproduction. The vertices of the two graphs are the same, and each vertex corresponds to an individual of the population. A key quantity is the fixation probability of a new mutant. It is defined as the probability that a newly introduced mutant (on a single vertex) generates a lineage of offspring which eventually takes over the entire population of resident individuals. The basic computational questions are as follows: (i) the qualitative question asks whether the fixation probability is positive; and (ii) the quantitative approximation question asks for an approximation of the fixation probability. Our main results are: (1) We show that the qualitative question is NP-complete and the quantitative approximation question is #P-hard in the special case when the interaction and the replacement graphs coincide and even with the restriction that the resident individuals do not reproduce (which corresponds to an invading population taking over an empty structure). (2) We show that in general the qualitative question is PSPACE-complete and the quantitative approximation question is PSPACE-hard and can be solved in exponential time.
The complexity of evolutionary games on graphs
Creators: name: Chatterjee, Krishnendu
name: Ibsen-Jensen, Rasmus
name: Nowak, Martin
Publisher: name: IST Austria
Year: 2015
Subjects: 000 Computer science, knowledge & general works
570 Life sciences; biology

description: Evolution occurs in populations of reproducing individuals. The structure of the population affects the outcome of the evolutionary process. Evolutionary graph theory is a powerful approach to study this phenomenon. There are two graphs. The interaction graph specifies who interacts with whom for payoff in the context of evolution. The replacement graph specifies who competes with whom for reproduction. The vertices of the two graphs are the same, and each vertex corresponds to an individual of the population. The fitness (or the reproductive rate) is a non-negative number, and depends on the payoff. A key quantity is the fixation probability of a new mutant. It is defined as the probability that a newly introduced mutant (on a single vertex) generates a lineage of offspring which eventually takes over the entire population of resident individuals. The basic computational questions are as follows: (i) the qualitative question asks whether the fixation probability is positive; and (ii) the quantitative approximation question asks for an approximation of the fixation probability. Our main results are as follows: First, we consider a special case of the general problem, where the residents do not reproduce. We show that the qualitative question is NP-complete, and the quantitative approximation question is #P-complete, and the hardness results hold even in the special case where the interaction and the replacement graphs coincide. Second, we show that in general both the qualitative and the quantitative approximation questions are PSPACE-complete. The PSPACE-hardness result for quantitative approximation holds even when the fitness is always positive.
Polynomial Structures in One-Loop Amplitudes
Creators: name: Britto, Ruth
name: Feng, Bo
name: Yang, Gang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A general one-loop scattering amplitude may be expanded in terms of master integrals. The coefficients of the master integrals can be obtained from tree-level input in a two-step process. First, use known formulas to write the coefficients of (4-2epsilon)-dimensional master integrals; these formulas depend on an additional variable, u, which encodes the dimensional shift. Second, convert the u-dependent coefficients of (4-2epsilon)-dimensional master integrals to explicit coefficients of dimensionally shifted master integrals. This procedure requires the initial formulas for coefficients to have polynomial dependence on u. Here, we give a proof of this property in the case of massless propagators. The proof is constructive. Thus, as a byproduct, we produce different algebraic expressions for the scalar integral coefficients, in which the polynomial property is apparent. In these formulas, the box and pentagon contributions are separated explicitly.
description: 44 pages, title changed to be closer to content, section 2.1 extended to section 2.1 and 2.2 to be more self-contained, references added, typos corrected, the final version to appear in JHEP
Determinants of Urban Household Poverty in Arsi Zone, Oromiya, Ethiopia
Creators: name: Beshir Shaku Beriso 1 Adem Kedir 2 Belaineh Legesse 3
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The main objective of this paper is to assess determinants of urban household poverty in urban setting with a case study from Arsi administrative Zone, Oromiya, Ethiopia. Primary data were collected from 174 households, selected randomly from four towns. Data were analyzed using descriptive statistics, one way analysis of variance and multiple linear regression model. Results show that income poverty was positively influenced by educational level, household size and business participation status of household heads. It was found that income poverty was negatively affected by age of households, marital status and economic status of parents. It was also found that income poverty was higher among divorced and widowed household heads as compared to the married groups. However, income poverty was lower for those participating in different business activities than household heads who do not participate in business activities.
Multi-StyleGAN: Towards Image-Based Simulation of Time-Lapse Live-Cell Microscopy
Creators: name: Reich, Christoph
name: Prangemeier, Tim
name: Wildner, Christian
name: Koeppl, Heinz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Quantitative Methods (q-bio.QM)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: Time-lapse fluorescent microscopy (TLFM) combined with predictive mathematical modelling is a powerful tool to study the inherently dynamic processes of life on the single-cell level. Such experiments are costly, complex and labour intensive. A complimentary approach and a step towards in silico experimentation, is to synthesise the imagery itself. Here, we propose Multi-StyleGAN as a descriptive approach to simulate time-lapse fluorescence microscopy imagery of living cells, based on a past experiment. This novel generative adversarial network synthesises a multi-domain sequence of consecutive timesteps. We showcase Multi-StyleGAN on imagery of multiple live yeast cells in microstructured environments and train on a dataset recorded in our laboratory. The simulation captures underlying biophysical factors and time dependencies, such as cell morphology, growth, physical interactions, as well as the intensity of a fluorescent reporter protein. An immediate application is to generate additional training and validation data for feature extraction algorithms or to aid and expedite development of advanced experimental techniques such as online monitoring or control of cells. Code and dataset is available at https://git.rwth-aachen.de/bcs/projects/tp/multi-stylegan.
description: revised -- accepted to MICCAI 2021 (doi.org/10.1007/978-3-030-87237-3_46) (Tim Prangemeier and Christoph Reich --- both authors contributed equally)
The Peculiar Type Ia Supernova 2005hk
Creators: name: Stanishev, V.
name: Taubenberger, S.
name: Blanc, G.
name: Anupama, G. C.
name: Benetti, S.
name: Cappellaro, E.
name: Elias-Rosa, N.
name: Feron, C.
name: Goobar, A.
name: Krisciunas, K.
name: Pastorello, A.
name: Sahu, D. K.
name: Salvo, M. E.
name: Schmidt, B. P.
name: Sollerman, J.
name: Thone, C. C.
name: Turatto, M.
name: Hillebrandt, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a preliminary analysis of an extensive set of optical observations of the Type Ia SN 2005hk. We show that the evolution of SN 2005hk closely follows that of the peculiar SN 2002cx. SN 2005hk is more luminous than SN 2002cx, while still under-luminous compared to normal Type Ia supernovae. The spectrum at 9 days before maximum is dominated by conspicuous Fe III and Ni III lines, and the Si II 6355 line is also clearly visible. All these features have low velocity (~6000 km/s). The near maximum spectra show lines of Si II, S II, Fe II, Fe III, as well as other intermediate mass and iron group elements. Analysis with the code for synthetic spectra SYNOW indicates that all these spectral lines have similar velocities.
description: 6 pages, 3 figures, submitted to the proceedings of the conference``The Multicoloured Landscape of Compact Objects and their Explosive Origins'', 2006 June 11--24, Cefalu, Sicily, to be published by AIP
Ware Potato Value Chain Analysis in West Showa Zone, Central Ethiopia
Creators: name: Biruk-Kemaw1* Diriba-Shiferaw2
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Ware potato plays a multiple and important roles in local food systems and for food security; however due to the prevalence of production and marketing constraints, the crop haven't supply majority of its advantages. Thus, the study was conducted in order to link the farmers to the needs of consumers, working closely with suppliers and processors to produce the specific goods required by consumers. This research attempted to analyze the value chain of ware potato in Ambo and Dendi districts, Ethiopia in the cropping year of 2014/15. Data were collected both from primary and secondary sources. Primary data were collected from a total of 227 sampled respondents and were interviewed randomly from both districts. Descriptive, inferential and value chain map was used as a means of data analysis. The study result revealed that there were actors involved from input supply to end markets, who were participated directly or indirectly in the value chain. Direct actors were owners of the product taking risk in the chain: basically buying from other actors, processing and selling the product to the next actors; indirect actors are those that provide financial or non-financial support services to direct actors. From the study results it is possible to conclude that, there were potential conditions for ware potato production in the study areas and many actors involving in the value chain; however, the sector need integrated supports as the value chain was constrained by different production and marketing problems.
$FM^2$: Field-matrixed Factorization Machines for Recommender Systems
Creators: name: Sun, Yang
name: Pan, Junwei
name: Zhang, Alex
name: Flores, Aaron
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Click-through rate (CTR) prediction plays a critical role in recommender systems and online advertising. The data used in these applications are multi-field categorical data, where each feature belongs to one field. Field information is proved to be important and there are several works considering fields in their models. In this paper, we proposed a novel approach to model the field information effectively and efficiently. The proposed approach is a direct improvement of FwFM, and is named as Field-matrixed Factorization Machines (FmFM, or $FM^2$). We also proposed a new explanation of FM and FwFM within the FmFM framework, and compared it with the FFM. Besides pruning the cross terms, our model supports field-specific variable dimensions of embedding vectors, which acts as soft pruning. We also proposed an efficient way to minimize the dimension while keeping the model performance. The FmFM model can also be optimized further by caching the intermediate vectors, and it only takes thousands of floating-point operations (FLOPs) to make a prediction. Our experiment results show that it can out-perform the FFM, which is more complex. The FmFM model's performance is also comparable to DNN models which require much more FLOPs in runtime.
description: In Proceedings of the Web Conference 2021 (WWW 2021), April 19-23, 2021, Ljubljana, Slovenia. 10 pages
Review on Epidemiology and Management of Faba Bean (Vicia fabae) Chocolate Spot (Botrytis fabae), Root Rot (Fusarium solani) and Rust (Uromyces vicia fabae) in Ethiopia
Creators: name: Shiferaw Deneke
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Of all pulse crops grown in Ethiopia, faba beans stand 2nd after common beans and before chickpeas which are all considered to be the top export crops accounting 90% by volume and 85% total earnings. However, diseases such as chocolate spot, root rot and rust are the major biotic constraints affecting yield wherever the crop grows. Yield losses of up to 61% on susceptible cultivars and 30-50% under favorable conditions for chocolate spot were reported. Root rot was also recognized to cause complete crop loss during severe infections and yield loss may reach 100% in susceptible cultivars. Rust epidemics in addition identified to reduce faba bean yields with losses of up to 30%, while, in combination with chocolate spot, yield reductions of up to 50% have been reported. Control options for disease in general include high levels of resistant cultivars, planting good quality seed and fungicide applications integrated either with cropping system or early planting to manage faba bean chocolate spot. Integrated management was also reported to control faba bean root rot with the help of biocontrol agents. In this regard, soaking seeds in biocontrol agents (Bacillus megaterium and Trichoderma viride) and the use of Trichoderma harzianum as seed dressing or soil application with improved faba bean cultivars and fungicidal seed treatments consistently found to improve emergence and seed yield of faba bean. Artificially inoculated faba bean seedlings with the native antagonistic Bacillus isolates found to suppress black root rot. Integration of improved faba bean cultivars with protective fungicides application was also reported to gain higher monitory advantage. Similarly, faba bean-maize row intercropping and compost fertilization using host resistance and other crop management practices have found best to manage faba bean rust. In this review, developments discussed on management of chocolate spot, root rot and rust of faba bean were focusing on an integrated management either through host resistance with cropping systems and fungicide applications or host resistance with biocontrol agents. However, almost all the earlier findings were mainly limited either to research stations or greenhouse and laboratory experiments. This is, therefore, the current review is initiated with the objective that future research works to explore these best practices under farmers’ field condition along with supplementation of greenhouse and laboratory experiments considering mass production of the locally identified indigenous biocontrol agents in particular for seed or soil borne diseases such as faba bean root rot.
Best Practices for Integrating Ecosystem Services into Federal Decision Making
Creators: name: Olander, Lydia
name: Johnston, Robert J.
name: Tallis, Heather
name: Kagan, Jimmy
name: Maquire, Lynn
name: Boyd, James
name: Polasky, Stephen
name: Wainger, Lisa
Publisher: name: Digital Repository at the University of Maryland
Year: 2015

description: Federal agencies take many actions on behalf of the American public that influence ecosystem conditions and
change the provision of a variety of ecosystem services valued by the public. To date, most decisions
affecting ecosystems have relied on ecological assessments with little or no consideration of the value of
ecosystem services. Best practice for ecosystem service assessments applies quantitative measures and
methods that express both an ecosystem’s ability to provide people with valued services, and the social
benefit (value) provided by those services. Well established preference evaluation methods, both market
and non‐market economic valuation, as well as non‐monetary decision analysis methods can be used to
estimate values for ecosystem services. These approaches are sometimes used by federal agencies. However,
preference evaluation methods can be impractical because of time or resource constraints, particularly
where new data need to be collected. In such cases, the minimum standard required for an ecosystem
service assessment is to use quantitative or categorical measures that reflect the ecosystem’s ability to
provide benefits to society but stop short of a formal assessment of people’s preferences. We call these
quantitative measures of ecosystem services benefit relevant indicators (BRIs). Examples of BRIs include;
instances of respiratory distress caused by wildfire smoke inhalation, number of bald eagles and number of
people who value their existence, and storage volume of wetland areas upstream of a flood prone area with
a community of 1,000 homes. While a number of insights that can be drawn from knowledge of BRIs alone, a
more robust comparative analysis is provided by a more complete analysis that includes people’s preferences
or values. If ecosystem service values or BRIs are not used in some manner, ecosystem services are not being
assessed, and no direct insights can be drawn about effects on social welfare. This minimum best practice is
broadly achievable across agencies and decision contexts with current capacity and resources.
The Ground State Energy of Heavy Atoms: Relativistic Lowering of the Leading Energy Correction
Creators: name: Frank, Rupert L.
name: Siedentop, Heinz
name: Warzel, Simone
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We describe atoms by a pseudo-relativistic model that has its origin in the work of Chandrasekhar. We prove that the leading energy correction for heavy atoms, the Scott correction, exists. It turns out to be lower than in the non-relativistic description of atoms. Our proof is valid up to and including the critical coupling constant. It is based on a renormalization of the energy whose zero level we adjust to be the ground-state energy of the corresponding non-relativistic problem. This allows us to roll the proof back -- by relatively simple technical means -- to results for the Schrödinger operator.
description: 17 pages
Classification of multipartite entanglement containing infinitely many kinds of states
Creators: name: Chen, Lin
name: Chen, Yi-Xin
name: Mei, Yu-Xue
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a further investigation of the range criterion and Low-to-High Rank Generating Mode (LHRGM) introduced in \cite{Chen}, which can be used for the classification of $2\times{M}\times{N}$ states under reversible local filtering operations. By using of these techniques, we entirely classify the family of $2\times4\times4$ states, which actually contains infinitely many kinds of states. The classifications of true entanglement of $2\times(M+3)\times(2M+3)$ and $2\times(M+4)\times(2M+4)$ systems are briefly listed respectively.
description: 11 pages, revtex
Classical and quantum $f(R)$ cosmology: The big rip, the little rip and the little sibling of the big rip
Creators: name: Vasilev, Teodor Borislavov
name: Bouhmadi-López, Mariam
name: Martín-Moruno, Prado
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The big rip, the little rip and the little sibling of the big rip are cosmological doomsdays predicted by some phantom dark energy models that could describe the future evolution of our Universe. When the universe evolves towards either of these future cosmic events all bounded structures and, ultimately, space-time itself are ripped apart. Nevertheless, it is commonly belief that quantum gravity effects may smooth or even avoid these classically predicted singularities. In this review, we discuss the classical and quantum occurrence of these riplike events in the scheme of metric $f(R)$ theories of gravity. The quantum analysis is performed in the framework of $f(R)$ quantum geometrodynamics. In this context, we analyse the fulfilment of the DeWitt criterion for the avoidance of these singular fates.
description: Invited review submitted to Universe for the Special Issue on "Quantum Cosmology", ed. by Prof. Paulo Vargas Moniz, 32 pages, 3 tables. v2: typos fixed, references added, matches published version