cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Properties of Fossil Groups of Galaxies
Creators: name: Aguerri, J. Alfonso L.
name: Zarattini, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We review the formation and evolution of fossil groups and clusters from both the theoretical and the observational points of view. In the optical band, these systems are dominated by the light of the central galaxy. They were interpreted as old systems that had enough time to merge all the M* galaxies within the central one. During the last two decades many observational studies were performed to prove the old and relaxed state of fossil systems. The majority of these studies, that spans a wide range of topics including halos global scaling relations, dynamical substructures, stellar populations, and galaxy luminosity functions, seem to challenge this scenario. The general picture that can be obtained by reviewing all the observational works is that the fossil state could be transitional. Indeed, the formation of the large magnitude gap observed in fossil systems could be related to internal processes rather than an old formation.
description: 25 pages, 7 figures, 1 table. This review article is part of the special issue The Physical Properties of the Groups of Galaxies, edited by L. Lovisari and S. Ettori. Published in MDPI - Universe: https://www.mdpi.com/journal/universe/special_issues/PPGG
Equatorial orbits and imaging of hairy cubic Galileon black holes
Creators: name: Van Aelst, Karim
name: Gourgoulhon, Eric
name: Vincent, Frederic H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Null and timelike equatorial orbits are investigated in a family of hairy black holes in the cubic Galileon theory. These include rotating generalizations of static black hole metrics supporting a time-dependent scalar field. Depending on the coupling and rotation, the properties of the geodesics expectedly deviate from general relativity. In particular, it is found that stable circular geodesics only exist below a critical coupling, which is related to the existence of an outermost stable circular orbit. Focusing on the strong-field region, images of an accretion disk are also produced to highlight tendencies that would constrain the model given further accurate observations of supermassive black holes.
description: 22 pages, 7 figures, version published in PRD
Τα βασανιστήρια από τη σκοπιά της ηθικής φιλοσοφίας
Creators: name: Αγελαδάρη, Ελένη Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Βασανιστήρια
Ηθική φιλοσοφία
«Το σενάριο της προγραμματισμένης να εκραγεί συντόμως βόμβας»
Torture
Moral philosophy
“Ticking bomb scenario”

description: Σκοπός της συγκεκριμένης μεταπτυχιακής εργασίας ήταν να καταστήσει σαφές ότι από ηθικής σκοπιάς τα βασανιστήρια δεν έχουν καμία θέση στον σύγχρονο κόσμο. Πιο συγκεκριμένα, στο κέντρο της μελέτης μας τέθηκαν τα προανακριτικά βασανιστήρια στο πλαίσιο του «σεναρίου της προγραμματισμένης να εκραγεί συντόμως βόμβας» και του «πολέμου κατά της τρομοκρατίας», διότι σε αυτή την περίπτωση επανήλθε στο προσκήνιο η συζήτηση περί επαναφοράς και χρήσης τους. Για να καταλήξουμε στο συμπέρασμα της απόλυτης απαγόρευσης βασανιστηρίων χωρίς καμία εξαίρεση, μελετήσαμε την ιστορική εξέλιξή τους και τα παγκόσμια κείμενα απαγόρευσής τους, σταθήκαμε στην ηθική τους απαξία σχολιάζοντας το βιωματικό έργο του Améry «Πέρα από την ενοχή και την εξιλέωση» και τις διαφωτιστικές ιδέες του Beccaria έτσι όπως περιγράφονται στο «Περί αδικημάτων και ποινών», και τελικά ασχοληθήκαμε εκτενώς με το «σενάριο της προγραμματισμένης να εκραγεί συντόμως βόμβας» μέσω των υποστηρικτών του -κυρίως του Bentham και του Dershowitz- και των επικριτών του -κυρίως του Miller-. Μετά την μελέτη του προαναφερθέντος σεναρίου, καταλήξαμε πως από την μία αυτό είναι απίθανο να συμβεί με όλες τις προϋποθέσεις που το συνοδεύουν και το καθιστούν «περίπτωση έκτακτης ανάγκης», και από την άλλη το βασικότερο ωφελιμιστικό επιχείρημα των υποστηρικτών του περί αποφυγής του «μεγαλύτερου κακού», μέσω της χρήσης προανακριτικών βασανιστηρίων, καταρρίπτεται ηθικώς, διότι το «μεγαλύτερο κακό» είναι τα βασανιστήρια και ό, τι αυτά συνεπάγονται στην κοινωνία μας γενικά και στον άνθρωπο ειδικά.
description: The aim of the present master thesis was to make clear that from a moral point of view torture must be banned in the modern world. More specifically, at the center of our thesis was the pretrial torture in the context of the “ticking bomb scenario” and the “war on terror”, because in this condition the issue of reinstatement of torture has returned to the forefront. To conclude the absolute ban of torture, we studied the historical development of torture, the moral worthlessness of them via Améry’s experiential work “Beyond guilt and atonement” and Beccaria’s enlightential work “On crimes and punishments” and finally we examined the “ticking bomb scenario” via its supporters -especially Bentham and Dershowitz- and its critics -especially Miller-. After studying the above scenario, we concluded that on the one hand this scenario is unlikely to happen, and on the other hand the most basic utilitarian argument of avoiding the “greatest evil”, using pretrial torture, is morally overthrown, because, eventually, torture is the “greatest evil” not only for our society, but also for the individual.
Scaling Properties of Galaxy Groups
Creators: name: Lovisari, Lorenzo
name: Ettori, Stefano
name: Gaspari, Massimo
name: Giles, Paul A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter. Moreover, because of their shallower gravitational potential, galaxy groups are systems where non-gravitational processes (e.g., cooling, AGN feedback, star formation) are expected to have a higher impact on the distribution of baryons, and on the general physical properties, than in more massive objects, inducing systematic departures from the expected scaling relations. Despite their paramount importance from the astrophysical and cosmological point of view, the challenges in their detection have limited the studies of galaxy groups. Upcoming large surveys will change this picture, reassigning to galaxy groups their central role in studying the structure formation and evolution in the Universe, and in measuring the cosmic baryonic content. Here, we review the recent literature on various scaling relations between X-ray and optical properties of these systems, focusing on the observational measurements, and the progress in our understanding of the deviations from the self-similar expectations on groups' scales. We discuss some of the sources of these deviations, and how feedback from supernovae and/or AGNs impacts the general properties and the reconstructed scaling laws. Finally, we discuss future prospects in the study of galaxy groups.
description: 36 pages, 8 figures, and 2 tables. This review article is part of the special issue "The Physical Properties of the Groups of Galaxies", edited by L. Lovisari and S. Ettori. Published in MDPI - Universe: https://www.mdpi.com/journal/universe/special_issues/PPGG"
Εισαγωγές εμπορικών αμφορέων στην περιοχή του Θερμαϊκού κόλπου κατά την αρχαϊκή και την κλασική περίοδο
Creators: name: Καρτά, Μελπομένη Σταματίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Εμπορικοί αμφορείς
Θερμαϊκός κόλπος
Εμπόριο στην αρχαϊκή και κλασική εποχή
Transport amphoras
Thermaic Gulf
Commerce in the Archaic and Classic era

description: Αντικείμενο της παρούσας μεταπτυχιακής εργασίας είναι οι εισαγωγές εμπορικών αμφορέων στον Θερμαϊκό κόλπο κατά τα πρώιμα αρχαϊκά έως και τα κλασικά χρόνια. Το χρονολογικό πλαίσιο θέτει ως χρονικό όριο την περίοδο από τα τέλη του 8ου αι. π.Χ. έως την περίοδο όπου έλαβε χώρα η ίδρυση της Θεσσαλονίκης από τον Κάσσανδρο, το 316/15 π.Χ. Στόχος της εργασίας είναι να διαφανούν τα κέντρα παραγωγής των εμπορικών αμφορέων που συναντώνται στην περιοχή, οι χρονικές περίοδοι στις οποίες εμφανίζονται και σε δεύτερο επίπεδο η φύση των εμπορικών συναλλαγών που λάμβαναν χώρα στην εκάστοτε εποχή, κυρίως όσον αφορά τα προϊόντα που πιθανώς εισάγονται με τους αμφορείς. Το υλικό υπό μελέτη προέρχεται από θέσεις στην περιοχή του Θερμαϊκού κόλπου οι οποίες υπήρχαν τη συγκεκριμένη χρονική περίοδο. Οι θέσεις αυτές είναι: η Κρανιά Πλαταμώνα, η Μεθώνη Πιερίας, η Πύδνα, το Αρχοντικό, η Αγχίαλος, η Λητή, η Πολίχνη, η Τούμπα Θεσσαλονίκης, το Καραμπουρνάκι, η θέση «Αμαξοστάσιο ΜΕΤΡΟ» Πυλαίας Θεσσαλονίκης, η Θέρμη Θεσσαλονίκης, η Νέα Καλλικράτεια και η Μένδη
description: The subject of the present master thesis is the import of transport amphoras in the area of the Thermaic Gulf, from the early archaic to the classic era. The chronological frame sets its limits from the late 8th century BC until the era of the foundation of the city of Thessaloniki of Kassandros, around 316/5 BC. The purpose of the thesis is to identify the production centers of amphoras that imported their products in the area, the time periods during which this imports took place and, on a secondary level, the nature of the commercial exchanges that happened during each period, especially when it comes to the products that were possibly imported inside the amphoras. The study focused on amphoras that came from archaeological sites in the extended area around the Thermaic Gulf that were active during this time period, such as Krania, Methone, Pydna, Archontiko, Agxialos, Lete, Polichne, Toumba, Karambournaki, Therme, Nea Kallikrateia and Mende
The evaluation and modification of a prediction model for road surface temperatures
Creators: name: McClean, Arthur A.
Publisher: name: University of British Columbia
Year: 2008

description: One version of a Surface Temperature Prediction Model has been evaluated and modified to precisely predict road temperatures and road conditions during winter nights under all weather conditions at rural, suburban, and urban sites. The Partial Differential Equation approach gives encouraging results with average errors being close to -0.5°C and worse case errors of +/- 1.0°C. The Willmott 'D' statistic generally remains greater than 0.8 for each site for all weather conditions. The model performs best on data for calm and clear nights. Poorest performance occurs for nights with large sensible and/or latent heat convective fluxes. An evaluation of the meteorological characteristics of each site (open rural, east-west forest, and east-west urban canyon) is performed. The urban canyon is consistently warmer than either of the other two sites. Air temperatures are not a dependable indicator of road surface temperatures because the relationship varies with weather conditions. Pavement near the center of the urban canyon tends to be slightly cooler than that near it's edge however no significant relationship is observed between the temperature at the center of the lane and within the lane's tire track. No clear relationship is observed between traffic volume and pavement temperature. The results are sufficiently encouraging to suggest further work with the Partial Differential Equation Model is warranted.
CIMUN Sanitary Alert: Possible association between the use of valproate in men and neurodevelopmental problems in their children
Creators: name: Centro de Información de Medicamentos de la Universidad Nacional
name: Aponte-Gonzalez, Johanna
Publisher: name: Zenodo
Year: 2024

description: A study conducted in Europe found that there may be an increased risk of neurodevelopmental disorders in children born to parents who used valproate in the three months before conception.
Simulating Groups and the IntraGroup Medium: The Surprisingly Complex and Rich Middle Ground Between Clusters and Galaxies
Creators: name: Oppenheimer, Benjamin D.
name: Babul, Arif
name: Bahé, Yannick
name: Butsky, Iryna S.
name: McCarthy, Ian G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galaxy groups are more than an intermediate scale between clusters and halos hosting individual galaxies, they are crucial laboratories capable of testing a range of astrophysics from how galaxies form and evolve to large scale structure (LSS) statistics for cosmology. Cosmological hydrodynamic simulations of groups on various scales offer an unparalleled testing ground for astrophysical theories. Widely used cosmological simulations with ~(100 Mpc)^3 volumes contain statistical samples of groups that provide important tests of galaxy evolution influenced by environmental processes. Larger volumes capable of reproducing LSS while following the redistribution of baryons by cooling and feedback are essential tools necessary to constrain cosmological parameters. Higher resolution simulations can currently model satellite interactions, the processing of cool (T~10^4 K) multi-phase gas, and non-thermal physics including turbulence, magnetic fields, and cosmic ray transport. We review simulation results regarding the gas and stellar contents of groups, cooling flows and the relation to the central galaxy, the formation and processing of multi-phase gas, satellite interactions with the intragroup medium, and the impact of groups for cosmological parameter estimation. Cosmological simulations provide evolutionarily consistent predictions of these observationally difficult-to-define objects, and have untapped potential to accurately model their gaseous, stellar, and dark matter distributions.
description: 61 pages, 18 figures, and 2 tables. This review article is part of the special issue "The Physical Properties of the Groups of Galaxies", edited by L. Lovisari and S. Ettori. Published in MDPI - Universe: https://www.mdpi.com/journal/universe/special_issues/PPGG
From the topological spin-Hall effect to the non-Hermitian skin effect in an elliptical micropillar chain
Creators: name: Mandal, S.
name: Banerjee, R.
name: Liew, T. C. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The topological spin-Hall effect causes different spins to propagate in opposite directions based on Hermitian physics. The non-Hermitian skin effect causes the localization of a large number of modes of a system at its edges. Here we propose a system based on exciton-polariton elliptical micropillars hosting both the effects. The polarization splitting of the elliptical micropillars gives rise to the topological spin-Hall effect in a one dimensional lattice. When a circularly polarized external incoherent laser is used to imbalance effective decay rates of the different spin polarizations, the system transits to a non-Hermitian regime showing the skin effect. These effects have implications for robust polariton transport as well as the deterministic formation of multiply charged vortices and persistent currents.
description: Close to the published version in ACS Photonics
Η απάτη στον τομέα του Φ.Π.Α. Η ποινική διάσταση του φαινομένου
Creators: name: Φράγγος, Ιωάννης Λάμπρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Απάτη ΦΠΑ
Απάτη αφανούς εμπόρου – Απάτη καρουζέλ
Οδηγία 2017/1371
VAT fraud
Missing trader fraud
Directive 2017/1371

description: Με την παρούσα διπλωματική εργασία επιχειρείται αφενός η σφαιρική ανάδειξη του φαινομένου της «απάτης στον τομέα του Φ.Π.Α.», μέσα από την καταγραφή τόσο των στρεβλώσεων που παρουσιάζει το ισχύον σύστημα, οι οποίες το καθιστούν ευάλωτο σε εγκληματικές ενέργειες, όσο και των προβλέψεων της Οδηγίας 2017/1371, γνωστής και ως Οδηγίας PIF και αφετέρου η οριοθέτηση του εύρους των ενωσιακών επιταγών και του εγκληματολογικού φαινοτύπου, με στόχο τη σαφή χάραξη και των ορίων δέσμευσης του εθνικού νομοθέτη ως προς τη μεταφορά των ρυθμίσεων της Οδηγίας στην ελληνική έννομη τάξη. Η ανάλυση συνοδεύεται από συγκριτική επισκόπηση και των διατάξεων του ν. 4174/2013, σχετικά με τη φοροδιαφυγή στον Φ.Π.Α., προκειμένου να διερευνηθεί και το πλάτος του αξιοποίνου του εθνικού νόμου, παράλληλα με το κείμενο της Οδηγίας. Υπό το πρίσμα των δύο αυτών μεγεθών (των προβλέψεων της Οδηγίας και των εθνικών διατάξεων), παρατίθεται, καταληκτικά, μία δέσμη συμπερασματικών παρατηρήσεων και προτάσεων, αναφορικά με την αποτελεσματικότητα των σχετικών προβλέψεων, ως προς την επιτυχή αντιμετώπιση του φαινομένου. Σε ένα επίμετρο καταγράφονται τέλος και οι προβλέψεις του άρ. 23 του ν. 4689/2020, με το οποίο ενσωματώνονται οι ρυθμίσεις της Οδηγίας, σχετικά με την απάτη στον τομέα του Φ.Π.Α. στην ελληνική έννομη τάξη
description: With the present thesis, on the one hand, it is attempted the globular emergence of the phenomenon of "VAT fraud", through the recording of the distortions of the current legal system, which render it vulnerable to criminal acts, and the predictions of Directive 2017/1371, also known as the PIF Directive and on the other hand, the delimitation of the scope of the EU orders and the forensic phenotype, with the aim of clearly defining the limits of commitment of the national legislator regarding the transposition of the Directive into the Greek legal system. The analysis is accompanied by a comparative overview of the provisions of Law 4174/2013, regarding tax evasion in VAT, in order to investigate the extent of the punishable (penal) of the national law, in parallel with the text of the Directive. In the light of these two dimensions (the predictions of the Directive and the national provisions), a set of concluding remarks and proposals are presented, regarding the effectiveness of the relevant predictions, in order to successfully deal with the phenomenon. Finally, the predictions of art. 23 of Law 4689/2020, which incorporates the regulations of the Directive, regarding fraud in the field of VAT in the Greek legal system, are recorded in an addendum
Ο Νόστος του Αγαμέμνονα στο ομώνυμο έργο του Αισχύλου σε σύγκριση με το Νόστο του Ξέρξη στους Πέρσες του Αισχύλου
Creators: name: Παπάς, Νικόλαος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αγαμέμνων - Αισχύλος
Πέρσαι - Αισχύλος
Νόστος - Αρχαία Ελληνική Τραγωδία
Agamemnon - Aeschylus
Persians - Aeschylus
Nostos - Ancient Greek Tragedy

description: Σκοπός της διατριβής ήταν η σύγκριση του Νόστου του Αγαμέμνονα στο ομώνυμο έργο του Αισχύλου με αυτόν του Ξέρξη στους Πέρσες του Αισχύλου. Για την ανάλυση αυτού του θέματος ήταν αναγκαία η εξέταση περαιτέρω συνισταμένων, οι οποίες συνθέτουν το κατάλληλο σκηνικό για την ανάπτυξη του προαναφερθέντος θέματος. Τέτοιες είναι, παραδείγματος χάριν, οι εκστρατείες των δυο αυτών αρχηγών, οι αποφάσεις που κλήθηκαν να πάρουν, καθώς και η υποδοχή, την οποία τους επιφύλασσε η κάθε κοινότητα (στον Αγαμέμνονα το Άργος, στον Ξέρξη τα Σούσα). Ενδιαφέρον παρουσιάζει το γεγονός ότι ο Αγαμέμνων, μολονότι γύρισε ως νικητής, κατέληξε να δολοφονηθεί από την σύζυγό του Κλυταιμνήστρα, λόγω των εσφαλμένων αποφάσεών του κατά τη διάρκεια της εκστρατείας. Από την άλλη ο Ξέρξης, μολονότι γύρισε ως ηττημένος, στην αρχή δέχτηκε επικρίσεις, αλλά στο τέλος ανέλαβε εκ νέου τα ηνία της ηγεμονίας της Περσικής Αυτοκρατορίας. Ένα επίσης σημαντικό θέμα, το οποίο έθιξα, ήταν η σχέση των πρωταγωνιστών με τα οικογενειακά τους πρόσωπα. Η μεταξύ τους αλληλεπίδραση και οι απόψεις που εκφέρει ο καθένας είναι καθοριστικά για την διαλεύκανση των ερωτημάτων που προκύπτουν. Τέλος, εξέτασα τον τρόπο με τον οποίο προσλαμβάνουν το αποτέλεσμα μιας μάχης ένας ελληνικός λαός από την μια (οι Αχαιοί στον Αγαμέμνων) και ένας λαός της Ανατολής από την άλλη (οι Πέρσες στους Πέρσες)
description: The aim of the present thesis was to compare the Nostos of Agamemnon in the homonymous work of Aeschylus with that of Xerxes in the Persians of Aeschylus. To analyze this topic, it was necessary to examine further issues, which compose the appropriate scenario for the development of the aforementioned topic. Such are, for example, the campaigns of these two leaders, the decisions they were called to take, as well as the reception that each community had in store for them (to Agamemnon the city of Argos, to Xerxes city of Susa). It is interesting to note that Agamemnon, although he returned as a winner, he ended up being murdered by his wife Clytemnestra, due to his mistaken decisions during the campaign. On the other hand, Xerxes, although he returned as a loser, was initially criticized, but in the end he took the reins of the hegemony of the Persian Empire again. Another important issue, which I mentioned, was the relationship between the protagonists and their family members. The interaction between them and the opinions expressed by each of them are crucial for clarifying the questions that arise. Finally, I examined the way in which a Greek Nation on the one hand (the Achaeans in Agamemnon) and a Nation of the East on the other (the Persians in Persians) approach the result of a battle
Show Me What You Can Do: Capability Calibration on Reachable Workspace for Human-Robot Collaboration
Creators: name: Gao, Xiaofeng
name: Yuan, Luyao
name: Shu, Tianmin
name: Lu, Hongjing
name: Zhu, Song-Chun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Aligning humans' assessment of what a robot can do with its true capability is crucial for establishing a common ground between human and robot partners when they collaborate on a joint task. In this work, we propose an approach to calibrate humans' estimate of a robot's reachable workspace through a small number of demonstrations before collaboration. We develop a novel motion planning method, REMP, which jointly optimizes the physical cost and the expressiveness of robot motion to reveal the robot's reachability to a human observer. Our experiments with human participants demonstrate that a short calibration using REMP can effectively bridge the gap between what a non-expert user thinks a robot can reach and the ground truth. We show that this calibration procedure not only results in better user perception, but also promotes more efficient human-robot collaborations in a subsequent joint task.
description: 8 pages, 6 figures, IEEE Robotics and Automation Letters (RA-L), 2022
The metal content of the hot atmospheres of galaxy groups
Creators: name: Gastaldello, Fabio
name: Simionescu, Aurora
name: Mernier, Francois
name: Biffi, Veronica
name: Gaspari, Massimo
name: Sato, Kosuke
name: Matsushita, Kyoko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galaxy groups host the majority of matter and more than half of all the galaxies in the Universe. Their hot ($10^7$ K), X-ray emitting intra-group medium (IGrM) reveals emission lines typical of many elements synthesized by stars and supernovae. Because their gravitational potentials are shallower than those of rich galaxy clusters, groups are ideal targets for studying, through X-ray observations, feedback effects, which leave important marks on their gas and metal contents. Here, we review the history and present status of the chemical abundances in the IGrM probed by X-ray spectroscopy. We discuss the limitations of our current knowledge, in particular due to uncertainties in the modeling of the Fe-L shell by plasma codes, and coverage of the volume beyond the central region. We further summarize the constraints on the abundance pattern at the group mass scale and the insight it provides to the history of chemical enrichment. Parallel to the observational efforts, we review the progress made by both cosmological hydrodynamical simulations and controlled high-resolution 3D simulations to reproduce the radial distribution of metals in the IGrM, the dependence on system mass from group to cluster scales, and the role of AGN and SN feedback in producing the observed phenomenology. Finally, we highlight future prospects in this field, where progress will be driven both by a much richer sample of X-ray emitting groups identified with eROSITA, and by a revolution in the study of X-ray spectra expected from micro-calorimeters onboard XRISM and ATHENA.
description: 43 pages, 15 figures. Accepted for publication in Universe. This review article is part of the special issue "The Physical Properties of the Groups of Galaxies", edited by L. Lovisari and S. Ettori. Published in MDPI - Universe https://www.mdpi.com/journal/universe/special_issues/PPGG"
Monotonic normalized heat diffusion for regular bipartite graphs with four eigenvalues
Creators: name: Kubo, Tasuku
name: Namba, Ryuya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary: 50C50, Secondary: 05B05, 60J27

description: Let $X=(V, E)$ be a finite regular graph and $H_t(u, v), \, u, v \in V$, the heat kernel on $X$. We prove that, if the graph $X$ is bipartite and has four distinct Laplacian eigenvalues, the ratio $H_t(u, v)/H_t(u, u), \, u, v \in V,$ is monotonically non-decreasing as a function of $t$. The key to the proof is the fact that such a graph is an incidence graph of a symmetric 2-design.
description: 13 pages, 2 figures
Is there a compounding process for leuprolide acetate 22.5 mg in ELIGARD® prefilled syringe to replace triptorelin 3.75 mg in the LHRH test?
Creators: name: Centro de Información de Medicamentos de la Universidad Nacional
name: Aponte-Gonzalez, Johanna
name: Muñoz, Ilvar
Publisher: name: Zenodo
Year: 2024

description: The LHRH test, or gonadotropin-releasing hormone (GnRH) stimulation test, is used in diagnosing children with pubertal disorders. The use of GnRH analogs such as leuprolide acetate has been studied in the diagnosis of precocious puberty. This should be administered at doses of 10 - 20 μg/kg (maximum 500 μg) subcutaneously and then blood samples are taken at 2, 4, and up to 24 hours. Here we analyze the compounding of leuprolide acetate 22.5 mg in ELIGARD® prefilled syringe to administer such a small dose.
A Multi-disciplinary Ensemble Algorithm for Clustering Heterogeneous Datasets
Creators: name: Hassan, Bryar A.
name: Rashid, Tarik A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Clustering is a commonly used method for exploring and analysing data where the primary objective is to categorise observations into similar clusters. In recent decades, several algorithms and methods have been developed for analysing clustered data. We notice that most of these techniques deterministically define a cluster based on the value of the attributes, distance, and density of homogenous and single-featured datasets. However, these definitions are not successful in adding clear semantic meaning to the clusters produced. Evolutionary operators and statistical and multi-disciplinary techniques may help in generating meaningful clusters. Based on this premise, we propose a new evolutionary clustering algorithm (ECAStar) based on social class ranking and meta-heuristic algorithms for stochastically analysing heterogeneous and multiple-featured datasets. The ECAStar is integrated with recombinational evolutionary operators, Levy flight optimisation, and some statistical techniques, such as quartiles and percentiles, as well as the Euclidean distance of the K-means algorithm. Experiments are conducted to evaluate the ECAStar against five conventional approaches: K-means (KM), K-meansPlusPlus (KMPlusPlus), expectation maximisation (EM), learning vector quantisation (LVQ), and the genetic algorithm for clusteringPlusPlus (GENCLUSTPlusPlus).
description: 30 pages
Neutron-$^3$H potentials and the $^5$H-properties
Creators: name: de Diego, R.
name: Garrido, E.
name: Fedorov, D. V.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The continuum resonance spectrum of $^5$H ($^3$H+$n$+$n$) is investigated by use of the complex scaled hyperspherical adiabatic expansion method. The crucial $^3$H-neutron potential is obtained by switching off the Coulomb part from successful fits to $^3$He-proton experimental data. These two-body potentials must be expressed exclusively by operators conserving the nucleon-core mean field angular momentum quantum numbers. The energies $E_R$ and widths $Γ_R$ of the $1/2^+$ ground-state resonance and the lowest two excited $5/2^+$ and $3/2^+$-resonances are found to be $(1.6,1.5)$ MeV, $(2.8,2.5)$ MeV and $(3.2,3.9)$ MeV, respectively. These results agree with most of the experimental data. The energy distributions of the fragments after decay of the resonances are predicted.
description: 26 pages, 8 tables, 7 figures. Accepted for publication in Nucl. Phys. A
Higher Mertens constants for almost primes
Creators: name: Bayless, Jonathan
name: Kinlaw, Paul
name: Lichtman, Jared Duker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11N25 (Primary), 11N37, 11A51 (Secondary)

description: For $k\ge1$, a $k$-almost prime is a positive integer with exactly $k$ prime factors, counted with multiplicity. In this article we give elementary proofs of precise asymptotics for the reciprocal sum of $k$-almost primes. Our results match the strength of those of classical analytic methods. We also study the limiting behavior of the constants appearing in these estimates, which may be viewed as higher analogues of the Mertens constant $β=0.2614...$ Further, in the case $k=2$ of semiprimes we give yet finer-scale and explicit estimates, as well as a conjecture.
description: 24 pages; minor corrections
Mapeando possibilidades de convergência entre os Princípios FAIR e os estudos em encontrabilidade
Creators: name: Campos, Arthur Ferreira
name: De Menezes, Ana Karoline França
name: Dias, Guilherme Ataíde
name: Marckson Roberto Ferreira De Sousa
Publisher: name: Cadernos BAD
Year: 2022

description: Executar um bom gerenciamento de dados contribui para otimizar a recuperação e a encontrabilidade em sistemas de informação, possibilitando assim, ampliar a descoberta de conhecimento em conjuntos de dados. Os Princípios FAIR (F – Localizável, A – Acessível, I – Interoperável, R – Reutilizável) agregam subsídios para aperfeiçoar a localização, o acesso, a interoperabilidade e o reúso de dados e/ou metadados num viés sistêmico e computacional. Findability agrega subsídios para a navegação, localização, descoberta e recuperação de um objeto em meio web. Isso é ampliado com a encontrabilidade que vislumbra o sistema e o sujeito que o acessa interagindo nesse ambiente digital. Objetiva, dessa forma, mapear possibilidades de convergência entre os princípios FAIR e os estudos em encontrabilidade. Utiliza abordagem qualitativa, de natureza básica. Quanto ao objetivo, é exploratória. Conclui que a encontrabilidade e os princípios FAIR podem dialogar como meios alternativos de gestão de dados abertos, tendo os princípios FAIR operando no sistema e a encontrabilidade agregando valor à relação entre o sujeito e as funcionalidades dos ambientes informacionais.
description: Cadernos BAD, N.º 1-2 (2021): Atas da 12ª Conferência Luso-Brasileira de Ciência Aberta (ConfOA)
Additional file 6 of Investigating the mechanism of Xian-ling-lian-xia-fang for inhibiting vasculogenic mimicry in triple negative breast cancer via blocking VEGF/MMPs pathway
Creators: name: Li, Feifei
name: Shi, Youyang
name: Zhang, Yang
name: Yang, Xiaojuan
name: Wang, Yi
name: Jiang, Kexin
name: Hua, Ciyi
name: Wu, Chunyu
name: Sun, Chenping
name: Qin, Yuenong
name: Liu, Sheng
Publisher: name: figshare
Year: 2022
Subjects: Biophysics
Biochemistry
Cell Biology
Molecular Biology
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Developmental Biology
Cancer

description: Additional file 6: Fig. S1. XLLXF inhibition of VM formation in MDA-MB-231 cells in vitro. Cells elongated and protruded pseudopodia to form net-like structures, whichwere blocked by XLLXF treatment after 24 h.
Η έννοια της Δικαιοσύνης στον Αριστοτέλη υπό το πρίσμα του διπόλου, της ισότητας και της ανισότητας
Creators: name: Ζεληλίδης, Γεώργιος Μιλτιάδη
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Πολιτική Φιλοσοφία
Πολιτική
Βιοηθική
Political Philosophy
Politics
Bioethics

description: Η εργασία αναφέρεται στο θέμα της έννοιας της Δικαιοσύνης στον Αριστοτέλη υπό το βλέμμα ενός αντιθετικού διπόλου: ισότητας και ανισότητας. Ο φιλόσοφος αντιλαμβάνεται την έννοια της ισότητας ως μέτρο της άσκησης του δικαίου και της δίκαιης πράξης. Η ισότητα είναι βασική παράμετρος και προυπόθεση της διανεμητικής δικαιοσύνης. Στο είδος αυτό του δικαίου, λειτουργική είναι η αξία κάθε μέρους που καθορίζει την αξία των αγαθών. Η αξία των αγαθών ρυθμίζεται ανάλογα με την αξία του ατόμου. Η αξία κάθε μέρους προσδιορίζεται από αξίες, όπως η θέση που έχει το ελεύθερο άτομο στην πολιτική κοινότητα, ο βαθμός πλούτου και η ιδιαίτερη ικανότητα που έχει ο καθένας. Το δίκαιον ισοδυναμεί με το ίσον που βρίσκεται μεταξύ της πλεονεξίας και της μειονεξίας. Για να απολαμβάνουν δύο άτομα τον ίσο αριθμό των πραγμάτων θα πρέπει πρώτα τα ίδια να είναι από μόνα τους ίσα.
description: This Thesis deals with the subject of Aristotle's concept of Justice in the face of a contrasting dipole: equality and inequality. The philosopher perceives the concept of equality as a measure of the exercise of law and of just action. Equality is an essential parameter and a prerequisite for distributive Justice. In this type of law, the value of each party determines the value of the goods. The value of the goods is adjusted according to the value of the individual. The value of each party is determined by values, such as the position of the free individual in the political community, the degree of wealth and the particular ability each has. Fair equals equality between disadvantage and disadvantage. In order for two people to enjoy the same number of things, they must first be equal in themselves.
description: Σε συνεργασία με: Φιλοσοφίας, Παιδαγωγικής και Ψυχολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών), Φιλοσοφικών και Κοινωνικών Σπουδών (Πανεπιστήμιο Κρήτης)
Dark Matter in Universal Extra Dimension Models: $γ_{KK}$ vrs $ν_{R,KK}$
Creators: name: Hsieh, Ken
name: Mohapatra, R. N.
name: Nasri, Salah
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that in a class of universal extra dimension models (UED), which solves both the neutrino mass and proton decay problem, an admixture of KK photon and KK right handed neutrinos can provide the required amount of cold dark matter (CDM). This model has two parameters $R^{-1}$ and $M_{Z'}$ ($R$ is the radius of the extra space dimensions and $Z'$ the extra neutral gauge boson of the model). Using the value of the relic CDM density, combined with the results from the cryogenic searches for CDM, we obtain upper limits on $R^{-1}$ of about 400-650 GeV and $M_{Z'}\leq 1.5$ TeV, both being accessible to LHC. In some regions of the parameter space, the dark matter-nucleon scattering cross section can be as high as of $10^{-44}$ cm$^2$, which can be probed by the next round of dark matter search experiments.
description: 13 pages, 2 figures; minor changes; to appear in Phys. Rev.D
Finite-size scaling analysis of eigenstate thermalization
Creators: name: Huang, Yichen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the fluctuations of eigenstate expectation values in a microcanonical ensemble. Assuming the eigenstate thermalization hypothesis, an analytical formula for the finite-size scaling of the fluctuations is derived. The same problem was studied by Beugeling et al. [Phys. Rev. E 89, 042112 (2014)]. We compare our results with theirs.
description: v3: published version
Diffusional Anomaly and network dynamics in liquid silica
Creators: name: Sharma, Ruchi
name: Mudi, Anirban
name: Chakravarty, Charusita
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The present study applies the power spectral analysis technique to understand the diffusional anomaly in liquid silica, modeled using the BKS potential. Molecular dynamics simulations have been carried out to show that power spectrum of tagged particle potential energy of silica shows a regime with 1/f dependence on frequency f which is the characteristic signature of multiple time-scale behaviour in networks. As demonstrated earlier in the case of water (J. Chem. Phys., 122, 104507 (2005)), the variations in the mobility associated with the diffusional anomaly are mirrored in the scaling exponent alpha associated with this multiple time-scale behaviour. Our results indicate that in the anomalous regime, as the local tetrahedral order decreases with temperature or pressure, the coupling of local modes to network reorganisations increases and so does the diffusivity. This symmetry-dependence of the vibrational couplings is responsible for the connection between the structural and diffusional anomalies.
description: 30 pages, 9 figures
CIMUN Sanitary Alert: Risk of photosensitivity reactions due to use of methotrexate
Creators: name: Centro de Información de Medicamentos de la Universidad Nacional
name: León - Linares, Juan Pablo
name: Rodriguez, Karla Geraldine
name: Aponte-Gonzalez, Johanna
Publisher: name: Zenodo
Year: 2024

description: CIMUN SANITARY ALERT: The Medicines and Healthcare Products Regulatory Agency (MHRA) of the United Kingdom Government received a forensic report in 2023 of a case of a photosensitivity reaction in a patient taking methotrexate. This reaction was found to have contributed to the patient's death from secondary infection. Action is needed to protect patients taking methotrexate from serious adverse events.
Repositórios institucionais para preservação da memória científica
Creators: name: Russiano Pereira, Debora Maria
name: De Oliveira Lucas, Elaine Rosangela
Publisher: name: Cadernos BAD
Year: 2022

description: Memória científica trata da memória construída coletivamente dentro dos laboratórios de pesquisa de uma instituição ou pela comunidade acadêmica (Prado, 2018). Os repositórios institucionais (RI) são ferramentas importantes na preservação da memória científica, porém é necessário que as instituições construam e aprovem políticas de preservação e de guarda da memória produzida​. As políticas de preservação digital e disponibilização da memória científica das universidades, dentro dos RI, são, de acordo com Nascimento, Queiroz e Araújo (2019, p. 56) “uma questão de elevada importância e a instituição que os abriga tem um papel crucial”. A pesquisa que está sendo realizada pretende propor uma política de preservação da memória científica produzida na Universidade Federal de Santa Catarina (UFSC). Trata-se de uma pesquisa qualitativa, exploratória, bibliográfica e documental. ​O corpus será analisado utilizando elementos da Análise de Conteúdo (Bardin, 2011), com categorias definidas a priori, com a constituição do corpus partindo das regras da pertinência e representatividade, consecutivamente. Por último, com base na bibliografia e documentação escolhidas, a proposta de política será elaborada. Espera-se obter subsídios para a elaboração de uma política de memória científica para a UFSC em acesso aberto, com a utilização do RI da instituição
description: Cadernos BAD, N.º 1-2 (2021): Atas da 12ª Conferência Luso-Brasileira de Ciência Aberta (ConfOA)
ShEF: Shielded Enclaves for Cloud FPGAs
Creators: name: Zhao, Mark
name: Gao, Mingyu
name: Kozyrakis, Christos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: FPGAs are now used in public clouds to accelerate a wide range of applications, including many that operate on sensitive data such as financial and medical records. We present ShEF, a trusted execution environment (TEE) for cloud-based reconfigurable accelerators. ShEF is independent from CPU-based TEEs and allows secure execution under a threat model where the adversary can control all software running on the CPU connected to the FPGA, has physical access to the FPGA, and can compromise the FPGA interface logic of the cloud provider. ShEF provides a secure boot and remote attestation process that relies solely on existing FPGA mechanisms for root of trust. It also includes a Shield component that provides secure access to data while the accelerator is in use. The Shield is highly customizable and extensible, allowing users to craft a bespoke security solution that fits their accelerator's memory access patterns, bandwidth, and security requirements at minimum performance and area overheads. We describe a prototype implementation of ShEF for existing cloud FPGAs, map ShEF to a performant and secure storage application, and measure the performance benefits of customizable security using five additional accelerators.
Strain induced pressure effect in pulsed laser deposited thin films of the strongly correlated oxide V2O3
Creators: name: Autier-Laurent, S.
name: Mercey, B.
name: Chippaux, D.
name: Limelette, P.
name: Simon, Ch.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: V2O3 thin films about 10 nm thick were grown on Al2O3 (0001) by pulsed laser deposition. The XRD analysis is in agreement with R-3c space group. Some of them exhibit the metal / insulator transition characteristic of V2O3 bulk material and others samples exhibit a metallic behavior. For the latter, the XPS analysis indicates an oxidation state of +III for vanadium. There is no metal / insulator transition around 150 K in this sample and a strongly correlated Fermi liquid rho = AT2 behavior of the resistivity at low temperature is observed, with a value of A of 1.2 10-4 ohm cm, 3 times larger than the bulk value at 25 kbar.
Μελέτη Απόδοσης και Προσομοίωση ενός EDCF δικτύου ΙΕΕΕ 802.11e στο ns3
Creators: name: Γεωργιάδη, Χριστίνα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Κινητή τηλεφωνία
EDCF (Enhanced Distributed Coordination Function)
WiFi (Wireless Fidelity)
802.11
OSI (Open Systems Interconnection)
Mobile Phone

description: Στόχος της παρούσας μεταπτυχιακής διατριβής αποτελεί η παρουσίαση των ωφελειών της βελτιωμένης μεθόδου συντονισμού κατανομής (Enhanced Distributed Coordination Function) στα ασύρματα δίκτυα WiFi. Για το λόγο αυτό παρουσιάζονται αρχικά τα βασικά στοιχεία των ασύρματων δικτύων καθώς και τα πλεονεκτήματα που παρουσιάζουν έναντι των παραδοσιακών ενσύρματων εφαρμογών. Στη συνέχεια γίνεται μια αναφορά στη κινητή τηλεφωνία εστιάζοντας στα δομικά της στοιχεία. Στο επόμενο κεφάλαιο αναλύονται τα επίπεδα του μοντέλου OSI και ακολούθως τα πρωτόκολλα που ορίζουν τη λειτουργία των ασύρματων τοπικών δικτύων 802.11. Το θεωρητικό μέρος ολοκληρώνεται με μια σύνδεση των πρωτοκόλλων της οικογένειας 802.11 με τα επίπεδα του OSI. Τα αποτελέσματα της μεθόδου παρουσιάζονται μέσω εξομοίωσης που διενεργείται από την εφαρμογή Network Simulator 3. Για το σκοπό αυτό παρουσιάζονται στον αναγνώστη τα απαραίτητα βήματα λήψης και εγκατάστασης της εφαρμογής. Στη συνέχεια αναλύεται ένα παράδειγμα υλοποίησης από αυτά που συνοδεύουν την εφαρμογή, το οποίο πλησιάζει αρκετά στο αντικείμενο της εργασίας. Τέλος παρουσιάζεται η υλοποίηση της εξομοίωσης και αναλύονται τα αποτελέσματα της
description: The aim of this thesis is to present the benefits of the Enhanced Distributed Coordination Function on WiFi networks. For this reason, the basic elements of wireless networks are presented first, as well as the advantages they present over traditional wired applications. Then, there is a reference to mobile telephony focusing on its structural elements. The next chapter analyzes the levels of the OSI model and then the protocols that define the operation of 802.11 wireless LANs. The theoretical part concludes with a connection of the 802.11 family of protocols to the OSI levels. The results of the method are presented through an emulation performed by the Network Simulator 3 application. For this purpose, the necessary steps of downloading and installing the application are presented to the reader. The following is an example of an implementation that accompanies the application, which is quite close to the object of the work. Finally, the implementation of the simulation is presented and its results are analyzed
Electro-weak Model within a 5-dimensional Lorentz group theory
Creators: name: Lecian, Orchidea Maria
name: Montani, Giovanni
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Electroweak model will be geometrized in a 5-D Riemann-Cartan framework: U(1) weak hyper-charge group will be worked out in a Klauza-Klein scheme, while SU(2) weak isospin group will be identified to suitable bein projections of the contortion field. The possibility of introducing Ashtekar formalism in 5-D Klauza-Klein theories will be investigated.
description: 3 pages, proceedings of the XI Marcel Grossmann meeting on Relativistic Astrophysics, July 23-29, 2006, Berlin
Efficient sampling of ground and low-energy Ising spin configurations with a coherent Ising machine
Creators: name: Ng, Edwin
name: Onodera, Tatsuhiro
name: Kako, Satoshi
name: McMahon, Peter L.
name: Mabuchi, Hideo
name: Yamamoto, Yoshihisa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that the nonlinear stochastic dynamics of a measurement-feedback-based coherent Ising machine (MFB-CIM) in the presence of quantum noise can be exploited to sample degenerate ground and low-energy spin configurations of the Ising model. We formulate a general discrete-time Gaussian-state model of the MFB-CIM which faithfully captures the nonlinear dynamics present at and above system threshold. This model overcomes the limitations of both mean-field models, which neglect quantum noise, and continuous-time models, which assume long photon lifetimes. Numerical simulations of our model show that when the MFB-CIM is operated in a quantum-noise-dominated regime with short photon lifetimes (i.e., low cavity finesse), homodyne monitoring of the system can efficiently produce samples of low-energy Ising spin configurations, requiring many fewer roundtrips to sample than suggested by established high-finesse, continuous-time models. We find that sampling performance is robust to, or even improved by, turning off or altogether reversing the sign of the parametric drive, but performance is critically reduced in the absence of optical nonlinearity. For the class of MAX-CUT problems with binary-signed edge weights, the number of roundtrips sufficient to fully sample all spin configurations up to the first-excited Ising energy, including all degeneracies, scales as $1.08^N$. At a problem size of $N = 100$ with a few dozen (median of 20) such desired configurations per instance, we have found median sufficient sampling times of $6\times10^6$ roundtrips; in an experimental implementation of an MFB-CIM with a 10 GHz repetition rate, this corresponds to a wall-clock sampling time of 60 ms.
description: The first two authors contributed equally to this work. 24 pages, 9 figures