cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Εταιρικοί μετασχηματισμοί υπό το πρίσμα του Ν.4601/2019 και της παρέμβασης της ελληνικής φορολογικής νομοθεσίας περί φορολογικών κινήτρων
Creators: name: Γαρέζου, Στυλιανή
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Εταιρικοί μετασχηματισμοί

description: Δια της παρούσης επιδιώκεται η παρουσίαση της ουσιαστικής αναμόρφωσης του δικαίου των εταιρικών μετασχηματισμών που έλαβε χώρα με τον Ν 4601/2019 (ΦΕΚ Α΄ 44/9.3.2018) η οποία αποτελούσε ζητούμενο και διαπιστωμένη νομοθετική ανάγκη, ούσα ταυτοχρόνως ανεξάρτητη από τις λοιπές και υπάρχουσες ανάγκες τροποποίησης του λοιπού εταιρικού δικαίου. Με ενιαίο πλέον νομοθετικό κείμενο και σε συνδυασμό με τις μεταβατικές διατάξεις του ως άνω Νόμου θα αποτυπωθούν οι βασικές αλλαγές και η πλήρωση των ασαφειών του προϊσχύσαντος δικαίου και εν συνεχεία θα υπογραμμιστούν οι βασικές μορφές μετασχηματισμού με την συστηματοποίηση όλων των ρητά προβλεπόμενων από την ισχύουσα νομοθεσία μορφών μετασχηματισμών τόσο κατ’ είδος (συγχωνεύσεις, διασπάσεις, μετατροπές) όσο και κατά εταιρική μορφή (μετασχηματισμοί μεταξύ ομοειδών και μεταξύ διαφορετικών εταιρικών μορφών). Τέλος, με την παρούσα μελέτη γίνεται μία προσπάθεια αναφοράς των προϋποθέσεων υπαγωγής των εταιρικών μετασχηματισμών στο καθεστώς των ν. 2166/1993 & 4172/2013 υπό το φώς νεότερων εγκυκλίων της ΑΑΔΕ σχετικά με τα φορολογικά ευεργετήματα με ταυτόχρονες επισημάνσεις στις διαφορές των φορολογικών κινήτρων των μετασχηματισμών των επιχειρήσεων ως προς τους ανωτέρω Νόμους. Προς επίρρωση λοιπόν στο πρώτο κεφάλαιο θα γίνει αναφορά στο προισχύσαν δίκαιο και τις παθογένειες του, ενώ το δεύτερο που ακολουθεί έρχεται να εξετάσει το ισχύον εφαρμοστέο δίκαιο με μία σύντομη συγκριτική επισκόπηση με το προγενέστερο. Εν συνεχεία το τρίτο κεφάλαιο τη παρούσης εξετάζει τον εταιρικό μετασχηματισμό της συγχώνευσης με αναλυτική υπογράμμιση τόσο των μορφών με την οποία παρουσιάζεται και της διαδικασίας με την οποία λαμβάνει χώρα όσο και των αποτελεσμάτων της. Στο τέταρτο κεφάλαιο επιδιώκεται η παρουσίαση της μορφής της διάσπασης και των ειδικότερων μορφών της με παράλληλη εξέταση της διαδικασίας συντέλεσης της και των απώτερων αποτελεσμάτων της. Ακολουθεί στο πέμπτο κεφάλαιο η τελευταία μορφή μετασχηματισμού ήτοι της μετατροπής και των επιμέρους μορφών της καθώς και της διαδικασίας με την οποία λαμβάνει χώρα ώστε να επέλθουν τα έννομα αποτελέσματά της. Στο έκτο κεφάλαιο επιχειρείται η επισκόπηση των εταιρικών μετασχηματισμών υπό το πρίσμα της ελληνικής φορολογικής νομοθεσίας περί φορολογικών κινήτρων και της σημασίας που έχουν γενικότερα οι φορολογικές ελαφρύνσεις στην διενέργεια τους. Ταυτόχρονα εξετάζεται το νομοσχέδιο που βρίσκεται σε διαβούλευσης και πρόκειται να ψηφιστεί από το Ελληνικό Κοινοβούλιο ως ένας τρόπος ενίσχυσης των κινήτρων για μετασχηματισμούς. Τέλος, στο τελευταίο κεφάλαιο γίνεται μια συμπερασματική επισκόπηση των προρρηθέντων.
Closed String Tachyon Condensation and Worldsheet Inflation
Creators: name: da Cunha, Bruno Carneiro
name: Martinec, Emil J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Closed string tachyon condensation in spacetime generates potentials on the worldsheet that model two-dimensional inflationary cosmology. These models illustrate and elucidate a variety of aspects of inflation, in particular the generation of quantum fluctuations and their back-reaction on geometry. We exhibit a class of Liouville gravity models coupled to matter that can exhibit, for example: (a) pure de Sitter gravity; (b) slow-roll inflation; (c) topological inflation; and (d) graceful exit into an FRW phase. The models also provide a quantitative testing ground for ideas about the origin of inflation, such as the various `no-boundary/tunnelling' proposals, and the `eternal/chaotic' inflationary scenario. We suggest an alternative mechanism for quantum creation of cosmological spacetimes which, in the context of the model, provides a natural explanation for why the typical FRW cosmology at large scales underwent a period of inflation at small scale.
description: 40 pages, latex, 8 .eps figures; v2: typos and an error in the pair production rate corrected, a few comments added
General relativity histories theory II: Invariance groups
Creators: name: Savvidou, Ntina
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show in detail how the histories description of general relativity carries representations of both the spacetime diffeomorphisms group and the Dirac algebra of constraints. We show that the introduction of metric-dependent equivariant foliations leads to the crucial result that the canonical constraints are invariant under the action of spacetime diffeomorphisms. Furthermore, there exists a representation of the group of generalised spacetime mappings that are functionals of the four-metric: this is a spacetime analogue of the group originally defined by Bergmann and Komar in the context of the canonical formulation of general relativity. Finally, we discuss the possible directions for the quantization of gravity in histories theory.
description: 24 pages, submitted to Class. Quant. Grav
Machine learning enables completely automatic tuning of a quantum device faster than human experts
Creators: name: Moon, H.
name: Lennon, D. T.
name: Kirkpatrick, J.
name: van Esbroeck, N. M.
name: Camenzind, L. C.
name: Yu, Liuqi
name: Vigneau, F.
name: Zumbühl, D. M.
name: Briggs, G. A. D.
name: Osborne, M. A
name: Sejdinovic, D.
name: Laird, E. A.
name: Ares, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Device variability is a bottleneck for the scalability of semiconductor quantum devices. Increasing device control comes at the cost of a large parameter space that has to be explored in order to find the optimal operating conditions. We demonstrate a statistical tuning algorithm that navigates this entire parameter space, using just a few modelling assumptions, in the search for specific electron transport features. We focused on gate-defined quantum dot devices, demonstrating fully automated tuning of two different devices to double quantum dot regimes in an up to eight-dimensional gate voltage space. We considered a parameter space defined by the maximum range of each gate voltage in these devices, demonstrating expected tuning in under 70 minutes. This performance exceeded a human benchmark, although we recognise that there is room for improvement in the performance of both humans and machines. Our approach is approximately 180 times faster than a pure random search of the parameter space, and it is readily applicable to different material systems and device architectures. With an efficient navigation of the gate voltage space we are able to give a quantitative measurement of device variability, from one device to another and after a thermal cycle of a device. This is a key demonstration of the use of machine learning techniques to explore and optimise the parameter space of quantum devices and overcome the challenge of device variability.
Adaptation and validation of the chronic otitis media questionnaire 12 (COMQ-12) in the Mexican Spanish language (COMQ-12-Mx)
Creators: name: Celis-Aguilar, Erika
name: Medina-Cabrera, Cindy Anahí
name: Torrontegui-Zazueta, Luis Alejandro
name: Núñez-Millán, Blanca Xóchitl
name: García-Valle, César Guillermo
name: Ochoa-Miranda, Carlos Andrey
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Background: Chronic otitis media (COM) questionnaire 12 (COMQ-12) is a specific-disease tool that evaluates COM patients. Objective: To validate COMQ-12 in the Mexican Spanish language (COMQ-12-Mx). Materials and methods: Mexican Spanish-speaking healthy volunteers and COM patients who attended a Secondary Care Center from May 2019 to October 2019. The COMQ-12 in Mexican Spanish was obtained by translation and back translation from an English-Spanish translator. All participants completed the COMQ-12-Mx questionnaire. COM patients were included regardless of their COM status. Control group completed the questionnaire twice. Participants were categorized into three groups: group 1 (COM), group 2 (volunteers first test) and group 3 (volunteers retest). Cronbach’s alpha was used for internal consistency, Spearman’s rank correlation coefficient was used for test-retest reliability and Mann–Whitney U test compared groups. Results: We included 78 Mexican Spanish-speaking participants (COM n = 37, healthy volunteers n = 41), 51 females and 27 males, mean age was 39.67 years (SD ± 18.32). Group 1 COMQ-12-Mx score was 22.108 ± 11.79, group 2 score was 3.561 ± 4.399 (p ≤ .001) and group 3 score was 3.683 ± 4.435. Cronbach’s alpha was 0.828 and test-retest reliability achieved a 0.928 outcome. Conclusions: COMQ-12-Mx is a valid and reliable tool to evaluate quality life in Mexican Spanish-speaking patients with COM.
U-duality (sub-)groups and their topology
Creators: name: Keurentjes, Arjan
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss some consequences of the fact that symmetry groups appearing in compactified (super-)gravity may be non-simply connected. The possibility to add fermions to a theory results in a simple criterion to decide whether a 3-dimensional coset sigma model can be interpreted as a dimensional reduction of a higher dimensional theory. Similar criteria exist for higher dimensional sigma models, though less decisive. Careful examination of the topology of symmetry groups rules out certain proposals for M-theory symmetries, which are not ruled out at the level of the algebra's. We conclude with an observation on the relation between the ``generalized holonomy'' proposal, and the actual symmetry groups resulting from E_10 and E_11 conjectures.
description: LaTeX, 8 pages, 2 tables, 1 figure, uses IOP-style files. Contributed to the proceedings of the RTN-workshop ``The quantum structure of space-time and the geometrical nature of the fundamental interactions,'', Copenhagen, Denmark, september 2003
title: Μικροενθυλάκωση βιοδραστικών και συστατικών τροφίμων σε κύτταρα ζύμης
title: ̈Microencapsulation of bioactive and food ingredients in yeast cells
titleType: AlternativeTitle
Creators: name: Καβαλάρη, Αναστασία Ειρήνη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Μικροενθυλάκωση
Ζύμες
Βιοδραστικά συστατικά

description: Οι σύγχρονες ανάγκες στο κλάδο των τροφίμων απαιτούν καινοτόμες και εφαρμόσιμες τεχνολογίες για την κάλυψη των καταναλωτικών και βιομηχανικών αναγκών. Οι τεχνολογίες μικροενθυλάκωσης βιοδραστικών συστατικών έχουν κεντρίσει το ενδιαφέρον του κλάδου. Μία από τις εν λόγω τεχνολογίες αφορά τη χρήση κυττάρων ζύμης ως βάση για τη δημιουργία κάψουλας που θα «φιλοξενίσει» τα επιθυμητά, προς ενθυλάκωση, συστατικά. Η επιλογή των κυττάρων ζυμών ως βάση ενθυλάκωσης φαίνεται να υπερέχει έναντι άλλων συστατικών, ως προς την εκτεταμένη σταθερότητα, στις διάφορες καταπονήσεις που απαιτούν οι τεχνικές κατά την μικροενθυλάκωση, την σχετικά ακριβή και ελεγχόμενη παράδοση των επιθυμητών συστατικών και την απόλυτη συμβατότητα στα τρόφιμα ως συστατικό. Στόχος της παρούσας μελέτης είναι η ανασκόπηση της τρέχουσας επιστημονικής γνώσης αναφορικά με τη χρήση και τα πλεονεκτήματα των κυττάρων ζύμης στην μικροενθυλάκωση.
Leptostylopsis duvali
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Leptostylopsis
Leptostylopsis duvali

description: 7. Leptostylopsis duvali (Fisher, 1926)
Type locality — Cuba. (USNM). Distribution — Cuba.
 Leptostylus duvali Fisher, 1926a: 19; Zayas, 1975: 242.
 Leptostylopsis duvali; Gilmour, 1963a: 59; Chemsak et al., 1992: 139 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Hodge Duality Operation And Its Physical Applications On Supermanifolds
Creators: name: Malik, R. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An appropriate definition of the Hodge duality $\star$ operation on any arbitrary dimensional supermanifold has been a long-standing problem. We define a working rule for the Hodge duality $\star$ operation on the $(2 + 2)$-dimensional supermanifold parametrized by a couple of even (bosonic) spacetime variables $x^μ(μ= 0, 1)$ and a couple of Grassmannian (odd) variables $θ$ and $\barθ$ of the Grassmann algebra. The Minkowski spacetime manifold, hidden in the supermanifold and parametrized by $x^μ(μ= 0, 1)$, is chosen to be a flat manifold on which a two $(1 + 1)$-dimensional (2D) free Abelian gauge theory, taken as a prototype field theoretical model, is defined. We demonstrate the applications of the above definition (and its further generalization) for the discussion of the (anti-)co-BRST symmetries that exist for the field theoretical models of 2D- (and 4D) free Abelian gauge theories considered on the four $(2 + 2)$- (and six $(4 + 2)$)-dimensional supermanifolds, respectively.
description: LaTeX file, 25 pages, Journal-version
The Pantheon+ Analysis: Evaluating Peculiar Velocity Corrections in Cosmological Analyses with Nearby Type Ia Supernovae
Creators: name: Peterson, Erik R.
name: Kenworthy, W. D'Arcy
name: Scolnic, Daniel
name: Riess, Adam G.
name: Brout, Dillon
name: Carr, Anthony
name: Courtois, Helene
name: Davis, Tamara
name: Dwomoh, Arianna
name: Jones, David O.
name: Popovic, Brodie
name: Rose, Benjamin M.
name: Said, Khaled
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Separating the components of redshift due to expansion and peculiar motion in the nearby universe ($z<0.1$) is critical for using Type Ia Supernovae (SNe Ia) to measure the Hubble constant ($H_0$) and the equation-of-state parameter of dark energy ($w$). Here, we study the two dominant 'motions' contributing to nearby peculiar velocities: large-scale, coherent-flow (CF) motions and small-scale motions due to gravitationally associated galaxies deemed to be in a galaxy group. We use a set of 584 low-$z$ SNe from the Pantheon+ sample, and evaluate the efficacy of corrections to these motions by measuring the improvement of SN distance residuals. We study multiple methods for modeling the large and small-scale motions and show that, while group assignments and CF corrections individually contribute to small improvements in Hubble residual scatter, the greatest improvement comes from the combination of the two (relative standard deviation of the Hubble residuals, Rel. SD, improves from 0.167 to 0.157 mag). We find the optimal flow corrections derived from various local density maps significantly reduce Hubble residuals while raising $H_0$ by $\sim0.4$ km s$^{-1}$ Mpc$^{-1}$ as compared to using CMB redshifts, disfavoring the hypothesis that unrecognized local structure could resolve the Hubble tension. We estimate that the systematic uncertainties in cosmological parameters after optimally correcting redshifts are 0.06-0.11 km s$^{-1}$ Mpc$^{-1}$ in $H_0$ and 0.02-0.03 in $w$ which are smaller than the statistical uncertainties for these measurements: 1.5 km s$^{-1}$ Mpc$^{-1}$ for $H_0$ and 0.04 for $w$.
description: 22 pages, 9 figures. Accepted by ApJ
Important shades in the meaning of military culture – an etymological study
Creators: name: Dimitrov, Kiril
Publisher: name: figshare
Year: 2021
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business
subject: 150310 Organisation and Management Theory

description: This study aims to outline and critically analyze key shades in the contemporary meaning of the military culture. An etymological study is conducted, based on a literature review of academic publications in the sphere of military culture. Furthermore, text mining was performed in the bodies of deliberately selected publications in order to explore the contemporary tendencies in developing of the professional language in this sphere. An elaborate set of interconnected, rich shades in the meaning of the military culture are identified, based on the reviewed scientific literature, organized and depicted by creating a useful mind-map. On this base an overarching contemporary definition of the aforementioned term is proposed. The identified items from the set of the reviewed scientific publications in this study are discoverable as open access documents on the first ten electronic pages in the academic database of Google Scholar. Seven shades in the meaning of the military culture are identified. The latter and their attributes are logically arranged by means of mind-map. Finally, a new overarching definition of military culture was formulated, considering its simultaneous realizations on different levels, its cultural forms, functions, pursued aims and means of their accomplishment, modernity in its stakeholder management, and its main impacting factor, i.e. the capability to switch between two alternative states of society.
Η ανεργία των νέων ως κίνητρο για επιχειρηματική δράση
Creators: name: Τριφύλλη, Στυλιανή
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Ανεργία
subject: Νέοι
subject: Επιχειρηματικότητα

description: Η ανεργία αποτελεί ένα κρίσιμο και σημαντικό ζήτημα τόσο για το άτομο όσο και για το σύνολο της κοινωνίας. Αντικείμενο της παρούσας εργασίας αυτής είναι η μελέτη της έννοιας της ανεργίας των νέων ατόμων και ειδικότερα του πως αυτή μπορεί να αποτελέσει κίνητρο για την ανάληψη επιχειρηματικών δράσεων τόσο την περίοδο της οικονομικής κρίσης, όσο και κατά τη διάρκεια της πανδημίας. Η ανεργία των νέων ξεκίνησε να αυξάνεται από την αρχή της κρίσης το 2008. Η αύξηση του αριθμού των νέων που δεν εργάζονται οδήγησε σε εκτεταμένες ανησυχίες σχετικά με τον αντίκτυπο στην κοινωνική συνοχή και τους φόβους μιας «χαμένης γενιάς». Δεδομένων των ακραίων διαφορών στα επίπεδα ανεργίας των νέων μεταξύ των κρατών μελών, είναι σαφές ότι δεν υπάρχει μια κοινή πολιτική για την αγορά εργασίας σε ολόκληρη την ΕΕ. Ωστόσο, μπορεί να υπάρξουν ευκαιρίες για δράσεις σχετικά με τον τρόπο καταπολέμησης της ανεργίας των νέων.
Mercy Killings
Creators: name: Seal, Samantha
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Signature Course Information Literacy Award
Utilitarianism
Deontology
euthanasia
Of Mice and Men
Steinbeck
philosophy
ethics
mercy killings
mental disabilities
categorical imperatives

description: This project won third place in the 2021 Signature Course Information Literacy Award. The award recognizes exemplary student work that achieves the learning outcomes of the Signature Course information literacy requirement, that students will be able to create and execute a research strategy, critically evaluate information, and navigate the scholarly conversation. The paper was nominated by Kristin Schulz from her fall 2020 course "Law and Literature" taught with Paula Murry. Samantha Seal's project was chosen for her ability to synthesize a close reading of her primary source, Of Mice and Men, with well-chosen secondary texts. Prof. Schulz supported this project by saying "Her analysis and discussion of deontological and utilitarian principles were excellent and very advanced. She used scholarly research and publications to analyze the principle of "mercy killings" in contemporary and historical literature.”
description: This research project explores the utilitarian and deontological views on mercy killings in the literary context of John Steinbeck’s Of Mice and Men. It includes information on the basic principles of both ethical systems and explains how utilitarianists and deontologists evaluate the justification of mercy killings. Finally, the paper discusses, from both ethical points of view, the murder of a mentally disabled character in Of Mice and Men. While the author of the research paper ultimately does not pick a side and keeps an objective tone throughout the project, she mentions that the author of the literary text she examines leans towards utilitarianism.
ALTERNATIVE DEFINITIONS OF FARM PEOPLE
Creators: name: Banks, Vera
name: Butler, Margaret
name: Kalbacher, Judith
name: Banks, Vera
name: Butler, Margaret
name: Kalbacher, Judith
Publisher: name: Unknown
Year: 1989
Subjects: subject: Agricultural and Food Policy
subject: Public Economics
subject: Farm people
subject: farm residents
subject: farm population
subject: farm income
subject: farmworker
subject: farm households

description: Eleven million people lived in households associated with farming by residence, occupation, or income in 1983. Alternative criteria developed in this report yield a farm resident population of 5.6 million in March 1983, a farm occupation population of 7.4 million, and a farm income population of 6.3 million. Differences noted between the farm occupation population and farm resident and income populations relate primarily to the farmworker component of the farm occupation population. This report uses data from the March 1983 Current Population Survey of the Bureau of the Census.
Growth of Linear Perturbations in a Universe with Superfluid Dark Matter
Creators: name: Banerjee, Shreya
name: Bera, Sayantani
name: Mota, David F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Lambda-Cold Dark Matter (LCDM) model agrees with most of the cosmological observations, but has some hindrances from observed data at smaller scales such as galaxies. Recently, Berezhiani and Khoury (2015) proposed a new theory involving interacting superfluid dark matter with three model parameters, which explains galactic dynamics with great accuracy. In the present work, we study the cosmological behaviour of this model in the linear regime of cosmological perturbations. In particular, we compute both analytically and numerically the matter linear growth factor and obtain new bounds for the model parameters which are significantly stronger than previously found. These new constraints come from the fact that structures within the superfluid dark matter framework grow quicker than in LCDM, and quite rapidly when the DM-baryon interactions are strong.
description: 16 pages, 6 figures
Downlink Coverage and Rate Analysis of Low Earth Orbit Satellite Constellations Using Stochastic Geometry
Creators: name: Okati, Niloofar
name: Riihonen, Taneli
name: Korpi, Dani
name: Angervuori, Ilari
name: Wichman, Risto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: As low Earth orbit (LEO) satellite communication systems are gaining increasing popularity, new theoretical methodologies are required to investigate such networks' performance at large. This is because deterministic and location-based models that have previously been applied to analyze satellite systems are typically restricted to support simulations only. In this paper, we derive analytical expressions for the downlink coverage probability and average data rate of generic LEO networks, regardless of the actual satellites' locality and their service area geometry. Our solution stems from stochastic geometry, which abstracts the generic networks into uniform binomial point processes. Applying the proposed model, we then study the performance of the networks as a function of key constellation design parameters. Finally, to fit the theoretical modeling more precisely to real deterministic constellations, we introduce the effective number of satellites as a parameter to compensate for the practical uneven distribution of satellites on different latitudes. In addition to deriving exact network performance metrics, the study reveals several guidelines for selecting the design parameters for future massive LEO constellations, e.g., the number of frequency channels and altitude.
description: Accepted for publication in the IEEE Transactions on Communications in April 2020
Adverse reactions related to proton pump inhibitors in pediatric population: an analysis of spontaneous reporting data
Creators: name: Dipasquale, Valeria
name: Cicala, Giuseppe
name: Laganà, Francesca
name: Cutroneo, Paola
name: Felicetti, Patrizia
name: Potenza, Simona
name: Trimarchi, Giuseppe
name: Spina, Edoardo
name: Romano, Claudio
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: The use of proton pump inhibitors (PPIs) has increased in the last 10 years in children. Data regarding their safety profile are limited. The aim of this study was to analyze data from the Italian spontaneous reporting system (SRS) database to evaluate the incidence and characteristics of PPI-related adverse drug reactions (ADRs) in children. This was an observational, retrospective study analyzing PPI-related ADR reports in children in the Italian SRS database between January 1st, 2001, and December 31st, 2020. ADRs were coded according to the system organ class term level. Factors associated with ADR seriousness were investigated. Seventy spontaneous reports of ADRs related to PPIs were analyzed. Esomeprazole and lansoprazole caused the highest number of ADRs equally (27% respectively), and the most frequently reported ADRs presented with gastrointestinal (24%) and/or skin manifestations (21.3%). More than a half of PPI prescriptions were off label for pediatric population. Serious ADRs were 19 (27.1%). Serious ADRs were more frequent in reports presenting PPIs combined with other drugs in comparison to reports with PPI single therapies (p = 0.03). PPI-related ADRs in children are mostly not serious, and combination therapy seems to be associated with ADR seriousness.
Machine Learning for Multi-Discipline Parametric Analysis in Architectural Practice
Creators: name: Okhoya, Victor
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 120101 Architectural Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Parametric analysis performs building performance analysis by simulating multiple design alternatives compared to the single design alternative analysis of conventional methods. It is an emergent, data-driven approach to architectural design. It has the benefits of enabling the optimization of design spaces, reducing uncertainty in design decision making, and establishing the most sensitive input parameters of the design space. However, it also faces data analytical challenges in practical application. These challenges include the size of design spaces, the speed and accuracy of simulation, and the presence of complex design space conditions. This study investigates machine learning algorithms as a design space reduction strategy for overcoming these data analytical challenges and thereby facilitating the implementation of parametric analysis in architectural practice. It focuses primarily on residential projects designed by Perkins&Will Architects in British Columbia. The study asks if machine learning algorithms can be effective at design space reduction for multi-discipline parametric analysis. In addition, it asks which of the algorithms we study - artificial neural networks, support vector machines and random forests - is the most effective? Are machine learning algorithms robust under complex design space conditions? Further, what is the influence on algorithm performance of the impact factors sample size, sensitivity analysis, feature selection and hyperparameter tuning? The methodology for addressing these questions involves the use of real world case study projects, dynamic simulation of the case study design spaces, and machine learning experiments on the simulated design spaces. A methodological framework referred to as Design Space Construction is used for defining the design spaces, integrating the multi-disciplinary simulation infrastructure and evaluating the analysis outcomes. Machine Learning experiments are performed to assess the effectiveness of the algorithms and the influence of performance impact factors (sample size, sensitivity analysis, feature selection and hyperparameter tuning). The study finds that machine learning algorithms can indeed be effective for multi-discipline parametric analysis. In particular, artificial neural networks are the most effective algorithm. Likewise, hyperparameter tuning is the most influential impact factor affecting algorithm performance. Lastly, machine learning algorithms can be robust under complex design space conditions.
Leptostylopsis guanica Micheli & Micheli 2004
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Leptostylopsis
Leptostylopsis guanica

description: 8. Leptostylopsis guanica Micheli & Micheli, 2004
Type locality — Puerto Rico, Guánica. (USNM). Distribution — Puerto Rico.
 Leptostylopsis guanica Micheli & Micheli, 2004: 22, fig. 2.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Magnetic field and thermal Hall effect in a pyrochlore U(1) quantum spin liquid
Creators: name: Yang, Hyeok-Jun
name: Kim, Hee Seung
name: Lee, SungBin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The antiferromagnetic system on a rare-earth pyrochlore has been focused as a strong candidate of U(1) quantum spin liquid. Here, we study the phase transitions driven by external magnetic field and discuss the large thermal Hall effect due to emergent spinon excitations with staggered gauge fields. Despite the spinons, the charge excitations of the effective action that carry spin-1/2 quantum number, do not couple to the external field, the emergent U(1) gauge field is influenced in the presence of external magnetic field. Especially along [111] and [110]-directions, we discuss the possible phase transitions between U(1) spin liquids with different gauge fluxes are stabilized in fields. Beyond the cases where gauge flux per plaquette are fixed to be either 0 or $π$, there exists a regime where the staggered gauge fluxes are stabilized without time reversal symmetry. In such a phase, the large thermal Hall conductivity $κ_{xy}/T\sim 4.6\times 10^{-3}\text{W}/(\text{K}^2\cdot\text{m})$ is expected to be observed below 1K.
description: 10 pages, 6 figures
Leptin levels are not affected by enalapril treatment after an uncomplicated myocardial infarction, but associate strongly with changes in fibrinolytic variables in men
Creators: name: Eriksson, Maria A.
name: Söderberg, Stefan
name: Nilsson, Torbjörn K.
name: Eriksson, Marie
name: Boman, Kurt
name: Jan-Håkan Jansson
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Leptin, an adipocyte-derived hormone, is involved in the regulation of body weight and is associated with obesity-related complications, notably cardiovascular disease (CVD). A putative link between obesity and CVD could be induction of plasminogen activator inhibitor-1 (PAI-1) synthesis by leptin. In this study, we hypothesized that the beneficial effect of the angiotensin-converting enzyme inhibitor (ACEi) enalapril on PAI-1 levels is mediated by effects on leptin levels. The association between leptin and components of the fibrinolytic system was evaluated in a non-prespecified post hoc analysis of a placebo-controlled randomized, double-blind trial where the effect of the ACEi enalapril on fibrinolysis was tested. A total of 46 men and 37 women were randomized to treatment with enalapril or placebo after (median 12 months) an uncomplicated myocardial infarction. At baseline, the participants were stable and had no signs of congestive heart failure. Leptin and fibrinolytic variables (mass concentrations of PAI-1, tissue plasminogen activator (tPA) and tPA–PAI complex) were measured at baseline, and after 10 days, 6 months and 12 months. Enalapril treatment did not change leptin levels, which increased significantly during 1 year of follow-up (p = .007). Changes in leptin levels were strongly associated with changes of tPA mass (p = .001), tPA–PAI complex (p = .003) and of PAI-1 (p = .006) in men, but not in women. Leptin levels are not influenced by treatment with an ACEi. In contrast, leptin associates strongly with changes in fibrinolytic variables notably with a sex difference, which could be of importance for obesity-related CVD.
Sub-Arrhenius diffusion in a binary colloidal system
Creators: name: Mustakim, Mahammad
name: Kumar, A. V. Anil
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of binary colloidal mixture subjected to an external potential barrier is investigated using molecular dynamics simulations. The depletion interactions between the potential barrier and larger components of the mixture alters the dynamics of the system significantly. The larger particles undergo sub-Arrhenius diffusion while smaller particles obey normal Arrhenius diffusion. These results show that quantum phenomena such as tunneling is not required to have sub-Arrhenius diffusion, in contrast to the general agreement in the literature. The depletion interactions between the external potential barrier and larger component increases with decreasing temperature which makes the effective activation energy for barrier crossing temperature dependent leading to sub-Arrhenius diffusion.
description: 7 pages, 7 figures
Incorporating Basis Expectation into Hedging Effectiveness Measures
Creators: name: Tumblin, Alan D.
name: Hauser, Robert J.
name: Garcia, Philip
name: Tumblin, Alan D.
name: Hauser, Robert J.
name: Garcia, Philip
Publisher: name: Unknown
Year: 1986
Subjects: Agricultural and Food Policy
Public Economics

description: It is suggested that, if the traditional portfolio approach to measuring hedging effectiveness is used, the underlying ex-ante basisexpectation model be specified explicitly. An empirical example comparing the proposed method to a traditional method for soybean hedges during 1966-83 is presented.
FUTURES PRICE VOLATILITY: MODELING NON-CONSTANT VARIANCE
Creators: name: Fackler, Paul L.
name: Fackler, Paul L.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
Demand and Price Analysis

description: A model is developed in which price variance is treated as a function of a deterministic seasonal component and a stochastic component which is conditional on past price changes. When applied to the corn futures market, both components are found to be significant. Implications for option pricing models are discussed.
Quantum Criticality of Excitonic Insulating Transition in Nodal Line Semimetal ZrSiS
Creators: name: Wang, Jing-Rong
name: Liu, Guo-Zhu
name: Wan, Xiangang
name: Zhang, Changjin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Pezzini et al. reported an unconventional mass enhancement in topological nodal line semimetal ZrSiS (Nat. Phys. 14, 178 (2018), whose origin remains puzzling. In this material, strong short-range interactions might induce excitonic particle-hole pairs. Here we study the renormalization of fermion velocities and find that the mass enhancement in ZrSiS can be well understood if we suppose that ZrSiS is close to the quantum critical point between semimetal and excitonic insulator. Near this quantum critical point, the fermion velocities are considerably reduced by excitonic quantum fluctuation, leading to fermion mass enhancement. The quasiparticle residue is suppressed as the energy decreases but is finite at zero energy. This indicates that ZrSiS is a strongly correlated Fermi liquid, and explains why the mass enhancement is weaker than non-Fermi liquids. Our results suggest that ZrSiS is a rare example of 3D topological semimetal exhibiting unusual quantum criticality.
description: 6+11 pages, 4+1 figures, 1 table
title: Εφαρμογές της προσθετικής κατασκευής και της 3D εκτύπωσης στην αμυντική βιομηχανία
title: Implementations of additive manufacturing and 3D printing in the defence industry
titleType: AlternativeTitle
Creators: name: Καραμούζας, Αναστάσιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Προσθετική κατασκευή
subject: Τριδιάστατη εκτύπωση
subject: 3D εκτύπωση
subject: Additive manufacturing
subject: 3d printing
subject: Defence industry
subject: Εφοδιαστική αλυσίδα
subject: Supply chain

description: Η τεχνολογία ψηφιακής κατασκευής, γνωστή επίσης ως προσθετική κατασκευή ή/και τριδιάστατη εκτύπωση, δημιουργεί φυσικά αντικείμενα από μια γεωμετρική αναπαράσταση με διαδοχική πρόσθεση υλικών. Αυτή η συνεχώς αναδυόμενη τεχνολογία, χρησιμοποιείται ευρέως στον κόσμο, με εφαρμογές σε ποικίλους τομείς, όλο και περισσότερο για μαζική προσαρμογή, παραγωγή οποιουδήποτε τύπου σχεδίων ανοιχτού κώδικα σε διαφόρους τομείς, όπως στη βιοϊατρική μηχανική, την αυτοκινητοβιομηχανία, την αεροναυπηγική, την αρχιτεκτονική και τη γενικότερη παραγωγή προϊόντων. Η καινοτομία αυτή μπορεί να εκτυπώσει ένα αντικείμενο, το ένα στρώμα μετά το άλλο, με εναπόθεση υλικού στρώσης απευθείας από ένα μοντέλο σχεδιασμού με τη βοήθεια υπολογιστή (CAD). Στην παρούσα εργασία παρουσιάζεται μια επισκόπηση των τύπων τεχνολογιών προσθετικής κατασκευής, των εφαρμογών της τεχνολογίας αυτής, καθώς και των υλικών που χρησιμοποιούνται σε αυτές. Ως βασικό και κύριο θέμα της είναι η χρήση της προσθετικής κατασκευής στην αμυντική και πολεμική βιομηχανία, και να αποτιμηθεί σε τι βαθμό δύναται να διευκολύνει, τόσο την επιχειρησιακή ετοιμότητα όσο και την αμυντική ικανότητα. Συγκεκριμένα, θα αξιολογηθούν τα πλεονεκτήματα που μπορεί να παρέχει σε ό,τι αφορά αντικείμενα και κατασκευές που συμμετέχουν στο πεδίο της μάχης, καθώς και η πιθανή συμβολή της στην εφοδιαστική αλυσίδα ενός στρατού στις διαδικασίες μεταφοράς μερών και εξαρτημάτων στην πρώτη γραμμή της μάχης. Η παρουσία και η αντικατάσταση αυτών των μερών είναι μια δουλειά που πρέπει να γίνει γρήγορα, άρτια και όπου απαιτείται. Στην επίτευξη αυτών των στόχων, θα μπορούσε να συντελέσει καταλυτικά η μέθοδος της προσθετικής κατασκευής.
Vortices in nonlocal Gross-Pitaevskii equation
Creators: name: Shchesnovich, Valery S
name: Kraenkel, Roberto A
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We consider vortices in the nonlocal two-dimensional Gross-Pitaevskii equation with the interaction potential having the Lorentz-shaped dependence on the relative momentum. It is shown that in the Fourier series expansion with respect to the polar angle the unstable modes of the axial $n$-fold vortex have orbital numbers $l$ satisfying $0
description: Second revision: small changes; 23 pages; 8 figures
Industrial control protocols in the Internet core: Dismantling operational practices
Creators: name: Nawrocki, Marcin
name: Schmidt, Thomas C.
name: Wählisch, Matthias
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Industrial control systems
subject: ICS
subject: ICS security protocols
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::004 Datenverarbeitung; Informatik

description: Industrial control systems (ICS) are managed remotely with the help of dedicated protocols that were originally designed to work in walled gardens. Many of these protocols have been adapted to Internet transport and support wide-area communication. ICS now exchange insecure traffic on an inter-domain level, putting at risk not only common critical infrastructure but also the Internet ecosystem (e.g., by DRDoS attacks). In this paper, we measure and analyze inter-domain ICS traffic at two central Internet vantage points, an IXP and an ISP. These traffic observations are correlated with data from honeypots and Internet-wide scans to separate industrial from non-industrial ICS traffic. We uncover mainly unprotected inter-domain ICS traffic and provide an in-depth view on Internet-wide ICS communication. Our results can be used (i) to create precise filters for potentially harmful non-industrial ICS traffic and (ii) to detect ICS sending unprotected inter-domain ICS traffic, being vulnerable to eavesdropping and traffic manipulation attacks. Additionally, we survey recent security extensions of ICS protocols, of which we find very little deployment. We estimate an upper bound of the deployment status for ICS security protocols in the Internet core.
Cones with convoluted geometry that always scatter or radiate
Creators: name: Blåsten, Emilia
name: Pohjola, Valter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q40 35P25 81U40

description: We investigate fixed energy scattering from conical potentials having an irregular cross-section. The incident wave can be any arbitrary non-trivial Herglotz wave. We show that a large number of such local conical scatterers scatter all incident waves, meaning that the far-field will always be non-zero. In essence there are no incident waves for which these potentials would seem transparent at any given energy. We show more specifically that there is a large collection of star-shaped cones whose local geometries always produce a scattered wave. In fact, except for a countable set, all cones from a family of deformations between a circular and a star-shaped cone will always scatter any non-trivial incident Herglotz wave. Our methods are based on the use of spherical harmonics and a deformation argument. We also investigate the related problem for sources. In particular if the support of the source is locally a thin cone, with an arbitrary cross-section, then it will produce a non-zero far-field.
SIMPLE AND MULTIPLE CROSS HEDGING OF RICE BRAN
Creators: name: Elam, Emmet W.
name: Miller, Stephen E.
name: Elam, Emmet W.
name: Miller, Stephen E.
Publisher: name: Unknown
Year: 1984
Subjects: Agricultural Finance
Crop Production/Industries

description: The feasibility of forward pricing sales of rice bran via crosshedging is investigated. Corn, oats, wheat, and soybean meal futures are considered as simple and multiple cross-hedging media. Sinmulation results indicate that simple cross-hedging using corn futures would be most effective in reducing price risks.
Leptostylopsis hispaniolae
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Leptostylopsis
Leptostylopsis hispaniolae

description: 10. Leptostylopsis hispaniolae (Fisher, 1942)
Type locality — Haití, Kenskoff. (MCZN). Distribution — Hispaniola.
 Leptostylus hispaniolae Fisher, 1942a: 30.
 Leptostylopsis hispaniolae; Gilmour, 1963a: 59; Chemsak et al., 1992: 139 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Genome heterogeneity drives the evolution of species
Creators: name: Miotto, Mattia
name: Monacelli, Lorenzo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Most of the DNA that composes a complex organism is non-coding and defined as junk. Even the coding part is composed of genes that affect the phenotype differently. Therefore, a random mutation has an effect on the specimen fitness that strongly depends on the DNA region where it occurs. Such heterogeneous composition should be linked to the evolutionary process. However, the way is still unknown. Here, we study a minimal model for the evolution of an ecosystem where two antagonist species struggle for survival on a lattice. Each specimen possesses a toy genome, encoding for its phenotype. The gene pool of populations changes in time due to the effect of random mutations on genes (entropic force) and of interactions with the environment and between individuals (natural selection). We prove that the relevance of each gene in the manifestation of the phenotype is a key feature for evolution. In the presence of a uniform gene relevance, a mutational meltdown is observed. Natural selection acts quenching the ecosystem in a non-equilibriumstate that slowly drifts, decreasing the fitness and leading to the extinction of the species. Conversely, if a specimen is provided with a heterogeneous gene relevance, natural selection wins against entropic forces, and the species evolves increasing its fitness. We finally show that heterogeneity together with spatial correlations is responsible for spontaneous sympatric speciation.
description: 8 pages, 4 figures
title: Affiche workshop projet ChroMed 2017
Creators: name: LabexMed
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Affiche du workshop organisé dans le cadre du projet de recherche Chromed.
ASYMMETRY IN THE RETAIL PRICING OF MAJOR DAIRY PRODUCTS WITH IMPLICATIONS FOR U.S. DAIRY POLICY
Creators: name: Kinnucan, Henry
name: Kinnucan, Henry
Publisher: name: Unknown
Year: 1984
Subjects: Demand and Price Analysis
Farm Management
Livestock Production/Industries

description: As a result of three consecutive years of record dairy surpluses, the support price of milk was lowered 5O/cwt. in December 1983, with further reductions scheduled in 1985 if surpluses remain too high. This paper assesses the implications of these price reductions. for retail dairy prices and farm-level demand.