cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Clinical effects of topical antifungal therapy in chronic rhinosinusitis: a randomized, double-blind, placebo-controlled trial of intranasal fluconazole
Creators: name: Hashemian, Farshad
name: Hashemian, Farnaz
name: Molaali, Najmeh
name: Rouini, Mohammadreza
name: Roohi, Elnaz
name: Torabian, Saadat
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: chronic rhinosinusitis
subject: antifungal therapy
subject: fluconazole
subject: clinical trial
subject: 610

description: Several studies have been in favor of fungi as a possible pathogenesis of chronic rhinosinusitis (CRS); however, to date, there is no scientific consensus about the use of antifungal agents in disease management. The aim of the present study was to investigate the efficacy of intranasal fluconazole in improving disease symptoms and objective outcomes of patients with CRS. A randomized, double-blind, placebo-controlled study was conducted on 54 patients who were diagnosed with CRS and had not been responsive to routine medical treatments. They were randomly assigned to receive either fluconazole nasal drop 0.2 % or placebo in addition to the standard regimen for a duration of 8 weeks. Patients’ outcomes were evaluated according to Sino-Nasal Outcome Test 20 (SNOT-20), endoscopic scores, and Computed Tomography (CT) scores. No statistically significant difference was found in SNOT-20 (p = 0.201), endoscopic (p = 0.283), and CT scores (p = 0.212) of the patients at baseline and after 8-week course of treatment between drug and placebo group. Similar to many studies, the use of topical antifungal treatment for patients with CRS was not shown to be significantly effective. However, further studies are needed to obtain high levels of consistent evidence in order to arrive at a decision whether antifungal therapy is effective in management of CRS or not.
description: EXCLI Journal;Vol. 15, 2016
The role of galactic dynamics in shaping the physical properties of giant molecular clouds in Milky Way-like galaxies
Creators: name: Jeffreson, Sarah M. R.
name: Kruijssen, J. M. Diederik
name: Keller, Benjamin W.
name: Chevance, Mélanie
name: Glover, Simon C. O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the role of the large-scale galactic-dynamical environment in setting the properties of giant molecular clouds in Milky Way-like galaxies. We perform three high-resolution simulations of Milky Way-like discs with the moving-mesh hydrodynamics code Arepo, yielding a statistical sample of $\sim 80,000$ giant molecular clouds and $\sim 55,000$ HI clouds. We account for the self-gravity of the gas, momentum and thermal energy injection from supernovae and HII regions, mass injection from stellar winds, and the non-equilibrium chemistry of hydrogen, carbon and oxygen. By varying the external gravitational potential, we probe galactic-dynamical environments spanning an order of magnitude in the orbital angular velocity, gravitational stability, mid-plane pressure and the gradient of the galactic rotation curve. The simulated molecular clouds are highly overdense ($\sim 100\times$) and over-pressured ($\sim 25\times$) relative to the ambient interstellar medium. Their gravo-turbulent and star-forming properties are decoupled from the dynamics of the galactic mid-plane, so that the kpc-scale star formation rate surface density is related only to the number of molecular clouds per unit area of the galactic mid-plane. Despite this, the clouds display clear, statistically-significant correlations of their rotational properties with the rates of galactic shearing and gravitational free-fall. We find that galactic rotation and gravitational instability can influence their elongation, angular momenta, and tangential velocity dispersions. The lower pressures and densities of the HI clouds allow for a greater range of significant dynamical correlations, mirroring the rotational properties of the molecular clouds, while also displaying a coupling of their gravitational and turbulent properties to the galactic-dynamical environment.
description: Resubmitted to MNRAS after addressing referee's comments. Cloud catalogues will be published with the MNRAS paper as Supporting Information; until then, they are available from the first author upon request. Comments welcome!
Οικονομοτεχνική μελέτη για τη δημιουργία coalition προγράμματος
Creators: name: Πασχάλη, Θεοδώρα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Πρόγραμμα αφοσίωσης και πίστης
subject: Στρατηγικός σχεδιασμός
subject: Ανάλυση αγοράς
subject: Μελέτες σκοπιμότητας
subject: Χρηματοοικονομική ανάλυση

description: Η παρούσα προμελέτη αποσκοπεί στον έλεγχο σκοπιμότητας για την ανάδειξη επενδυτικής ευκαιρίας ως προς την ίδρυση επιχείρησης με αντικείμενο την παροχή πλατφόρμας εξυπηρέτησης Κοινών Προγραμμάτων Αφοσίωσης και Πίστης – Coalition στην ελληνική αγορά με την επωνυμία “StarDust Ε.Ε.” στο νομό Αττικής. Η κυριότερη παράμετρος που λειτούργησε ως καθοδηγητική αρχή, κατά τη διάρκεια εκπονήσεως της συγκεκριμένης μελέτης είναι η καθολικότητα συμμετοχής των Ελλήνων καταναλωτών σε προγράμματα επιβράβευσης. Βασικός στόχος της επενδυτικής ομάδας είναι η ανάπτυξη ενός Κοινού Προγράμματος Αφοσίωσης και Πίστης που παρέχει σύγχρονες τεχνολογίες και μεθόδους δημιουργίας, διατήρησης και ενίσχυσης πιστής πελατειακής βάσης μέσα από την σύμπραξη γνωστών εμπόρων λιανικής. Οι υποστηρικτές της επένδυσης, είναι όλοι κάτοχοι πτυχίων με μακρά εργασιακή εμπειρία σε καίριες θέσης στην ελληνική αγορά. Το ενδιαφέρον για την ίδρυση της υπό μελέτη επιχείρησης, εκδηλώθηκε τον Ιούνιο του 2019. Η εταιρεία που δημιουργηθεί θα έχει Νομική Μορφή Ετερόρρυθμης Εταιρείας. Την εν λόγω μελέτη σκοπιμότητας ανέλαβε να φέρει εις πέρας η εταιρεία μελετών και Συμβούλων «SuccessElement» και συγκεκριμένα ειδική ομάδα Στελεχών από υπεύθυνη για την ανάπτυξη Οικονομοτεχνικών Μελετών με προθεσμία παράδοσης τον Ιανουάριο του 2020. Τέλος όσον αφορά στο συνολικό κόστος για προπαρασκευαστικές έρευνες, μελέτες υποστήριξης έχει εκτιμηθεί ότι θα ανέρθει στα €32.000.
EIGENTUMSVERHÄLTNISSE LANDWIRTSCHAFTLICHER BETRIEBE UND UNTERNEHMEN IN RUSSLAND UND IN DER UKRAINE - BEFRAGUNGSERGEBNISSE AUS DEN REGIONEN NOWOSIBIRSK UND SHITOMIR
Creators: name: Schulze, Eberhard
name: Tillack, Peter
name: Dolud, Olena
name: Bukin, Sergej
name: Schulze, Eberhard
name: Tillack, Peter
name: Dolud, Olena
name: Bukin, Sergej
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural and Food Policy
Industrial Organization

description: The aim of the discussion paper is firstly to obtain an overview of the ownership structures in agricultural enterprises of the Novosibirsk (Russia) and Shitomir (Ukraine) oblasts and to compare them.. Another aim was to compare the results also with findings from other oblasts, in order to better understand the current privatization and restructuring processes, and to draw conclusions for the continuation of these processes. The investigation shows that the property rights of the shareholders to the collectively divided property are limited in both oblasts. There are some substantial differences between the large-scale agricultural enterprises regarding concrete property rights. The sale of land and other property to other natural and legal entities by the shareholders is forbidden in all enterprises studied. But in all enterprises it is permitted to transfer land shares to those leaving in order to establish their own farm. In the Novosibirsk oblast, whereas 142 of the 181 members and managers of large-scale enterprises, and farmers, who were asked their opinion about the purchase and sale of land, gave a negative answer, only half of the farmers asked were against it. The report contains a multitude of further results regarding the ownership structures and the economic situation of large-scale farms, the owners of household plots, and the new farms. The discussion centering around the allotment of all property rights to the land among the shareholders, which involves the liberal reformers around president YEL'TSIN on the one hand, and the State Duma on the other, is studied. Based on GAJDAR, this is seen as the conflict between the abolition or the further existence of the "Asian mode of production"  as described by MARX. Suggestions for a gradual development of the transformation process are submitted.
Differential effects of growth factors in bulbospinal neuron survival and neurite outgrowth in vitro
Creators: name: Pataky, David Michael
Publisher: name: University of British Columbia
Year: 2009

description: During development, the central nervous system (CNS) is capable of not only growth, but regeneration as well. There are two possible reasons why this ability is lost with maturation: 1) the CNS environment no longer supports growth, and 2) the capacity of the neurons for growth diminishes. There is good evidence that treating injured neurons with the appropriate small polypeptide growth factors can reverse their diminished growth capacity and overcome the inhibition of the mature CNS environment. Neurons in the brainstem with axonal projections to the spinal cord (bulbospinal neurons) are necessary for the initiation and control of many motor behaviours, notably locomotion. After spinal cord injury, these motor behaviours are permanently compromised due to the ineffectiveness of CNS repair. I hypothesized that treating bulbospinal neurons with the appropriate trophic factor(s) will enhance their growth. To address this hypothesis, I designed a novel assay to examine trophic effects on bulbospinal neurons specifically. The assay is based on retrogradely labeling the bulbospinal neurons as they develop axonal projections to the spinal cord in the chick embryo. Subsequently, the brainstem tissue is dissociated (whole or vestibulospinal) or explanted (vestibulospinal or reticulospinal) into culture, creating survival or neurite outgrowth assays respectively. Two families of growth factors, neurotrophins and Fibroblast Growth Factors (FGFs) were examined for trophic effects on bulbospinal neurons. The neurotrophins were largely ineffective, but NT-3 significantly increased neurite outgrowth from reticulospinal (not vestibulospinal) explants. Four FGFs (FGF-1, FGF-2, FGF-5 and FGF-9) were also tested. FGF-2 was the most effective, stimulating survival and neurite outgrowth for all populations examined. FGF-1 only enhanced bulbospinal neurite outgrowth, FGF-9 only survival, and FGF-5 was largely ineffective. At this stage of development, bulbospinal neurons did not express FGF receptors, but non-neuronal cells in situ and in vitro did. Astrocyte-conditioned medium also increased bulbospinal neuron survival, suggesting that perhaps the FGFs act by stimulating the production of the appropriate growth factor from non-neuronal cells. In conclusion, indirect effects may be an important mechanism for growth factor action on bulbospinal neurons. Furthermore, NT-3, FGF-1 and FGF-2 are good candidates for promoting regeneration from injured bulbospinal neurons in vivo.
CREATION OF AGRICULTURAL LAND MARKET IN UKRAINE: CURRENT STATE OF DEVELOPMENT
Creators: name: Melnychuk, Volodymyr
name: Parkhomenko, Sergiy
name: Lissitsa, Alexej
name: Melnychuk, Volodymyr
name: Parkhomenko, Sergiy
name: Lissitsa, Alexej
Publisher: name: Unknown
Year: 2005
Subjects: subject: Land Economics/Use
subject: Land market reform
subject: transition
subject: Ukraine

description: Land reform started in Ukraine 14 years ago became one of the most important issues in transformation of large state agricultural enterprises into market oriented agricultural enterprises. Significant changes in land use and land ownership has happened as a result of land reform implementation in Ukraine. Namely, state monopoly on land was eliminated, agricultural land was privatized, citizens of Ukraine received land plots in possession, first land transactions have happened at agricultural land market etc. Actual data regarding Ukrainian land relations reformation is systematized in this Discussion paper with especial focus on establishing the prerequisites of further formation and perspective development of the agricultural land market in Ukraine. Additionally, a current situation is described at the Ukrainian agricultural land market and its legislative regulations. ZUSAMMENFASSUNG ENTWICKLUNG DES BODENMARKTES IN DER UKRAINE Die vor 14 Jahren in der Ukraine begonnene Bodenreform stellt eine wichtige Maßnahme der Transformation der ehemaligen staatlichen Agrarunternehmen in marktorientierte Unternehmen dar. Im Ergebnis der Bodenreform haben wichtige Veränderungen bezüglich der Bodennutzung und der Bodeneigentumsverhältnisse stattgefunden. Das staatliche Monopol an Boden wurde beseitigt und der Boden privatisiert. Die ukrainische Bürger erhielten Grundstücke als Eigentum übertragen, und erste Bodentransaktionen haben stattgefunden. Dieses "Discussion Paper" systematisiert die aktuelle Lage auf dem ukrainischen Bodenmarkt und formuliert weitere Voraussetzungen zur Herausbildung eines voll funktionsfähigen landwirtschaftlichen Bodenmarktes in der Ukraine. Die aktuellen Gesetze werden erläutert. РЕЗЮМЕ ПРОЦЕСС ФОРМИРОВАНИЯ РЫНКA СЕЛЬСКОХОЗЯЙСТВЕННЫХ ЗЕМЕЛЬ В УКРАИНЕ Земельная реформа началась в Украине 14 лет назад и является одним из наиболее важных факторов влияющих на процесс трансформации бывших государственных аграрных предприятий в предприятия с рыночной ориентацией. В результате проведения земельной реформы в Украине произошли значительные изменения в землепользовании и формах собственности на землю: Отменена государственная монополия на землю, проведена широкомасштабная приватизация сельскохозяйственных угодий, граждане Украины получили земельные участки в собственность, прошли первые транзакции на рынке сельскохозяйственной земли и т.д. В этом выпуске "Дискуссионных материалов" систематизированы фактические материалы касательно реформирования земельных отношений в Украине с особенным вниманием на создании условий для формирования и перспективного развития рынка сельскохозяйственной земли в Украине. Также представлено текущее состояние украинского рынка земли сельскохозяйственного назначения и его законодательное регулирование.
Action of cholecalciferol and alpha-tocopherol on Staphylococcus aureus efflux pumps
Creators: name: Tintino, Saulo R.
name: Morais-Tintino, Cícera D.
name: Campina, Fábia F.
name: Pereira, Raimundo L.
name: Do S. Costa, Maria
name: Braga, Maria Flaviana B.M.
name: Limaverde, Paulo W.
name: Andrade, Jacqueline C.
name: Siqueira-Junior, José P.
name: Coutinho, Henrique D.M.
name: Balbino, Valdir Q.
name: Leal-Balbino, Tereza C.
name: Ribeiro-Filho, Jaime
name: Quintans-Júnior, Lucindo J.
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: alpha-tocopherol
subject: cholecalciferol
subject: efflux pumps
subject: Staphylococcus aureus
subject: 610

description: Alpha-tocopherol is one the most abundant and biologically active isoforms of vitamin E. This compound is a potent antioxidant and one of most studied isoforms of vitamin E. Vitamin D3 (cholecalciferol) is an important nutrient for calcium homeostasis and bone health, that has also been recognized as a potent modulator of the immune response. Methicillin-resistant Staphylococcus aureus (MRSA) is the most important causative agent of both nosocomial and community-acquired infections. The aim of this study was to evaluate the inhibitory effect of alpha-tocopherol and cholecalciferol on both S. aureus and multidrug resistant S. aureus efflux pumps. The RN4220 strain has the plasmid pUL5054 that is the carrier of gene that encodes the macrolide resistance protein (an efflux pump) MsrA; the IS-58 strain possesses the TetK tetracycline efflux protein in its genome and the 1199B strain resists to hydrophilic fluoroquinolones via a NorA-mediated mechanism. The antibacterial activity was evaluated by determining the Minimal Inhibitory Concentration (MIC) and a possible inhibition of efflux pumps was associated to a reduction of the MIC. In this work we observed that in the presence of the treatments there was a decrease in the MIC for the RN4220 and IS-58 strains, suggesting that the substances presented an inhibitory effect on the efflux pumps of these strains. Significant efforts have been done to identify efflux pump inhibitors (EPIs) from natural sources and, therefore, the antibacterial properties of cholecalciferol and alphatocopherol might be attributed to a direct effect on the bacterial cell depending on their amphipathic structure.
description: EXCLI Journal;Vol. 15, 2016
Machine Learning and Algebraic Approaches towards Complete Matter Spectra in 4d F-theory
Creators: name: Bies, Martin
name: Cvetic, Mirjam
name: Donagi, Ron
name: Lin, Ling
name: Liu, Muyang
name: Ruehle, Fabian
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Motivated by engineering vector-like (Higgs) pairs in the spectrum of 4d F-theory compactifications, we combine machine learning and algebraic geometry techniques to analyze line bundle cohomologies on families of holomorphic curves. To quantify jumps of these cohomologies, we first generate 1.8 million pairs of line bundles and curves embedded in $dP_3$, for which we compute the cohomologies. A white-box machine learning approach trained on this data provides intuition for jumps due to curve splittings, which we use to construct additional vector-like Higgs-pairs in an F-Theory toy model. We also find that, in order to explain quantitatively the full dataset, further tools from algebraic geometry, in particular Brill--Noether theory, are required. Using these ingredients, we introduce a diagrammatic way to express cohomology jumps across the parameter space of each family of matter curves, which reflects a stratification of the F-theory complex structure moduli space in terms of the vector-like spectrum. Furthermore, these insights provide an algorithmically efficient way to estimate the possible cohomology dimensions across the entire parameter space.
description: 42 pages + appendix
DER TRANSFORMATIONSPROZEß IN DER POLNISCHEN ERNÄHRUNGSINDUSTRIE VON 1989 BIS 1995
Creators: name: Pieniadz, Agata
name: Pieniadz, Agata
Publisher: name: Unknown
Year: 1997
Subjects: Industrial Organization

description: After 45 years of planned economy a political and economic transition process started in Poland in 1989/90. Poland decided as the first among the Central and Eastern European Countries to launch a radical reform towards macroeconomic stabilisation and structural changes. The restructuring process determines to a great extent the processing industry. This paper analyses the transformation of the Polish food industry with main emphasis on privatisation and the internal and external structural changes of enterprises. It describes the principal stages and effects of the adjustment process of the Polish food industry to market conditions.
Taming the $ε_K$ in Little Randall Sundrum Models
Creators: name: D'Ambrosio, Giancarlo
name: Arun, Mathew Thomas
name: Kushwaha, Ashwani
name: Vempati, Sudhir K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Randall Sundrum (RS) models receive significant constraints from the neutral Kaon system. The CP violating observable $ε_K$, in Randall Sundrum scenario, requires the lightest KK gluon to be heavier than $\sim$ 24 TeV. The constraint is even stronger in the Little Randall Sundrum models (LRS), $\gtrsim$ 32 TeV. The LRS models are motivated for their possible visibility at the Large Hardon Collider (LHC). We show that the stringent constraints from K-physics can be relaxed in the LRS models, in the presence of the Brane Localised Kinetic Terms (BLKT). In particular, for a range of values, a UV BLKT could significantly modify the lightest KK gluon wave function such that the limit can reduces to 5 TeV. We also show that such a relaxation of the constraints can also be achieved by imposing flavour symmetries {à la } Minimal Flavour Protection.
description: 22 pages, 6 figures, Accepted to be published in Physical Review D
title: Εκμάθηση από κινητό: ένα εξατομικευμένο σύστημα διδασκαλίας για μαθηματικά
title: M-learning: a personalised tutoring system for maths
titleType: AlternativeTitle
Creators: name: Μοσχόπουλος, Γεράσιμος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Εφαρμογή κινητού
subject: Android
subject: Μαθηματικές παραστάσεις
subject: Μαθηματικά

description: Η παρούσα διατριβή περιλαμβάνει μια εφαρμογή, η οποία είναι ένα προσαρμοστικό σύστημα διδασκαλίας. Διδάσκει αριθμητικές παραστάσεις και περιέχει τρία επίπεδα δυσκολίας: εύκολο, μέτριο και δύσκολο. Όταν ο μαθητής χρησιμοποιεί την εφαρμογή και κάνει λάθη, το σύστημα του δείχνει με απαντήσεις αυτόματες τί είδους λάθους έκανε. Επιπλέον, τα λάθη καταγράφονται και η εφαρμογή τον παραπέμπει σε βοηθητική ιστοσελίδα, ώστε να του εξηγήσει αναλυτικά το είδος του λάθους και πως να βελτιωθεί στον υπολογισμό αριθμητικών παραστάσεων. Επιπροσθέτως, τα στατιστικά του χρήστη αποθηκεύονται και μπορούν να εξαχθούνε σε αρχείο csv στο «cloud» (υπολογιστικό νέφος). Αν ο μαθητής απαντήσει σωστά σε προηγούμενη λανθασμένη απάντηση, τότε το σύστημα αναγνωρίζει πως ο μαθητής εμπέδωσε την συγκεκριμένη κατηγορία λαθών που σχετίζονται με αυτήν την ερώτηση. Η παρούσα εργασία αποτελεί πρωτότυπο έργο.
Sum Rules for Magnetic Moments and Polarizabilities in QED and Chiral Effective-Field Theory
Creators: name: Holstein, B. R.
name: Pascalutsa, V.
name: Vanderhaeghen, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We elaborate on a recently proposed extension of the Gerasimov-Drell-Hearn (GDH) sum rule which is achieved by taking derivatives with respect to the anomalous magnetic moment. The new sum rule features a {\it linear} relation between the anomalous magnetic moment and the dispersion integral over a cross-section quantity. We find some analogy of the linearized form of the GDH sum rule with the `sideways dispersion relations'. As an example, we apply the linear sum rule to reproduce the famous Schwinger's correction to the magnetic moment in QED from a tree-level cross-section calculation and outline the procedure for computing the two-loop correction from a one-loop cross-section calculation. The polarizabilities of the electron in QED are considered as well by using the other forward-Compton-scattering sum rules. We also employ the sum rules to study the magnetic moment and polarizabilities of the nucleon in a relativistic chiral EFT framework. In particular we investigate the chiral extrapolation of these quantities.
description: 24 pages, 7 figures; several additions, published version
Αξιολόγηση και αποτίμηση ελληνικών εταιρειών πληροφορικής
Creators: name: Καργοπούλου, Ευριδίκη
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2019
Subjects: subject: Κλάδος πληροφορικής και τηλεπικοινωνιών
subject: Ελλάδα
subject: Λογισμικό
subject: Μηχανολογικός εξοπλισμός
subject: Χρηματοοικονομική ανάλυση
subject: Οικονομική κρίση

description: Η παρούσα Διπλωματική διερευνά την χρηματοοικονομική κατάσταση των εταιρειών ALTEC, BYTE COMPUTERS, PROFILE SOFTWARE, QUEST ΣΥΜΜΕΤΟΧΩΝ, και SINGULAR LOGIC, οι οποίες δραστηριοποιούνται στον κλάδο της πληροφορικής του Χρηματιστηρίου Αξιών Αθηνών. Εφαρμόσθηκε ανάλυση αριθμοδεικτών ρευστότητας, αποδοτικότητας, αποτελεσματικότητας και βιωσιμότητας, κλαδική σύγκριση και ανάλυση του πίνακα κίνησης κεφαλαίων με συλλογή δευτερογενών δεδομένων από τις δημοσιευμένες οικονομικές καταστάσεις των εξεταζόμενων εταιρειών για την περίοδο 2012-2016. Τα αποτελέσματα της ανάλυσης αριθμοδεικτών και του πίνακα κίνησης κεφαλαίων δείχνουν ότι οι ελληνικές εταιρείες πληροφορικής έχουν ανταποκριθεί στην κρίση διατηρώντας μία μέση ρευστότητα υψηλότερη της μονάδας, εισπράττοντας τις απαιτήσεις τους γρηγορότερα από ότι πληρώνουν τις υποχρεώσεις τους, και μειώνοντας τα αποθέματά τους. Αναφορικά με την άντληση κεφαλαίων, οι εξεταζόμενες εταιρείες προτιμούν τον βραχυπρόθεσμο δανεισμό, όπως προκύπτει από τους δείκτες κεφαλαιακής διάρθρωσης και βιωσιμότητας. Στα αρνητικά σημειώνεται το γεγονός ότι κατά την εξεταζόμενη περίοδο οι εταιρείες πληροφορικής υπέστησαν κατά κύριο λόγο ζημιές, με εξαίρεση την PROFILE, γεγονός που επηρέασε τους δείκτες αποδοτικότητας. Τα αποτελέσματα δικαιολογούνται πλήρως από κατάσταση της ελληνικής οικονομίας, η οποία δεν έχει επιτρέψει την υλοποίηση μεταρρυθμίσεων που θα μπορούσαν να αναβαθμίσουν τον δημόσιο αλλά και τον ιδιωτικό τομέα. Εν κατακλείδι, προκειμένου οι επιχειρήσεις πληροφορικής να παραμείνουν βιώσιμες, απαιτείται στρατηγική προσέγγιση με επαρκή μελέτη του εξωτερικού και εσωτερικού περιβάλλοντος των επιχειρήσεων, ειδικότερα σε ένα οικονομικό περιβάλλον που δεν έχει ακόμα σταθεροποιηθεί προς μία ανοδική πορεία. Με τον τρόπο αυτόν, οι ελληνικές επιχειρήσεις του κλάδου θα συνεχίσουν να δημιουργούν καινοτόμα προϊόντα διεθνούς απήχησης κυρίως στους τομείς του επιχειρηματικού λογισμικού και των υπηρεσιών πληροφορικής.
[Brev til DKNVS]
Creators: name: Ukjent
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1845

description: Omslagspapir på avhandlingen "Hvilke ere de gavnlige og hvilke er de skadelige følger af brændevinsbrendingens frigivelse i Norge…."
The conformally invariant measure on self-avoiding loops
Creators: name: Werner, Wendelin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show that there exists a unique (up to multiplication by constants) and natural measure on simple loops in the plane and on each Riemann surface, such that the measure is conformally invariant and also invariant under restriction (i.e. the measure on a Riemann surface S' that is contained in another Riemann surface S, is just the measure on S restricted to those loops that stay in S'). We study some of its properties and consequences concerning outer boundaries of critical percolation clusters and Brownian loops.
description: v3: minor changes, to appear in the Journal of the AMS
The Variance and Covariance of Counts-in-Cells Probabilities
Creators: name: Repp, Andrew
name: Szapudi, István
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Counts-in-cells (CIC) measurements contain a wealth of cosmological information yet are seldom used to constrain theories. Although we can predict the shape of the distribution for a given cosmology, to fit a model to the observed CIC probabilities requires the covariance matrix -- both the variance of counts in one probability bin and the covariance between counts in different bins. To date, there have been no general expressions for these variances. Here we show that correlations of particular levels, or "slices," of the density field determine the variance and covariance of CIC probabilities. We derive explicit formulae that accurately predict the variance and covariance among subvolumes of a simulated galaxy catalog, opening the door to the use of CIC measurements for cosmological parameter estimation.
description: 10 pages, 4 figures; submitted to MNRAS
Partial purification and characterization of an antimicrobial activity from the wood extract of mangrove plant Ceriops decandra
Creators: name: Simlai, Aritra
name: Mukherjee, Kalishankar
name: Mandal, Anurup
name: Bhattacharya, Kashinath
name: Samanta, Amalesh
name: Roy, Amit
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: antimicrobial activity
subject: bioactivity guided fractionation
subject: Ceriops decandra
subject: diterpenoids
subject: human pathogens
subject: mangroves
subject: 610

description: The development of resistance towards the antibiotics in use today has been a source of growing concern in the modern healthcare system around the world. To counter this major threat, there is an urgent need for discovery of new antimicrobials. Many plants, like mangroves, possess highly diversified list of natural phytochemicals which are known to have wide range of bioactivities. These phytochemicals can be good sources for the discovery of new drugs. In this study, we report the partial phytochemical characterization and antimicrobial activities of a semi-purified fraction isolated from the wood tissue of Ceriops decandra, a mangrove plant. This fraction named CD-3PM was chromatographically separated from C. decandra wood extract and was subjected to different spectral analyses to determine its partial chemical nature. The structural investigation indicates the presence of two diterpenoids, i) 3β, 13β-Dihydroxy-8-abietaen-7-one and ii) 3β-Hydroxy-8,13-abietadien-7-one in the CD-3PM fraction. The antimicrobial potential of this fraction was evaluated by microdilution-MTT assay against several organisms. Among the nine microorganisms found to be sensitive to the CD-3PM fraction, six organisms are reported to be pathogenic in nature. The CD-3PM fraction with broad spectrum antimicrobial efficacy revealed the presence of two diterpenoids and possesses potential applications in drug discovery process and food processing industries.
description: EXCLI Journal;Vol. 15, 2016
Generalized Global Symmetries of $T[M]$ Theories. I
Creators: name: Gukov, Sergei
name: Hsin, Po-Shen
name: Pei, Du
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Algebraic Topology (math.AT)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study reductions of 6d theories on a $d$-dimensional manifold $M_d$, focusing on the interplay between symmetries, anomalies, and dynamics of the resulting $(6-d)$-dimensional theory $T[M_d]$. We refine and generalize the notion of "polarization" to "polarization on $M_d$," which serves to fix the spectrum of local and extended operators in $T[M_d]$. Another important feature of theories $T[M_d]$ is that they often possess higher-group symmetries, such as 2-group and 3-group symmetries. We study the origin of such symmetries as well as physical implications including symmetry breaking and symmetry enhancement in the renormalization group flow. To better probe the IR physics, we also investigate the 't Hooft anomaly of 5d Chern-Simons matter theories. The present paper focuses on developing the general framework as well as the special case of $d=0$ and 1, while an upcoming paper will discuss the case of $d=2$, $3$ and $4$.
description: 110 pages + appendices; 13 figures
title: Επενδύσεις στη βιοοικονομία, με εφαρμογή σε θέματα ενέργειας και τα χρηματοδοτικά εργαλεία
title: Investments in bioeconomy applied in the field of energy efficiency and financial tools
titleType: AlternativeTitle
Creators: name: Μπακρατσά, Αγγελική
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Βιοοικονομία
subject: Επενδύσεις
subject: Ενέργεια

description: Στην εργασία αυτή επέλεξα να παρουσιάσω ένα θέμα, το οποίο έχει άμεσο ενδιαφέρον για την ενίσχυση και την ανάπτυξη της Ελληνική οικονομίας. Αρχικά θα παρουσιάσω τις έννοιες της βιοοκονομίας, της πράσινης ανάπτυξης και της μπλε οικονομίας, όρους που έχουν αρχίσει να χρησιμοποιούνται ευρέως τα τελευταία χρόνια από δημόσιους λειτουργούς και δημοσιογράφους στα μέσα μαζικής ενημέρωσης, και χρειάζονται αποσαφήνιση και διαχωρισμό, αλλά θα δούμε και τον τρόπο που σχετίζονται. Θα εξετάσουμε το πλαίσιο καθιέρωσης στρατηγικής της βιοοικονομίας σε εθνικό επίπεδο, τη σχέση της Ελλάδας σε σχέση με την πράσινη και μπλε οικονομία και τις ευκαιρίες που δίνουν στη χώρα μας οι τομείς αυτοί για αύξηση των επενδύσεων και κατά συνέπεια του κατά κεφαλήν εισοδήματος της χώρας. Η αναγκαιότητα των ίσων ευκαιριών κυρίως μεταξύ βορά και νότου, έκανε την ΕΕ να θεσμοθετήσει μια σειρά Πλαισίων Στήριξης προς τις αδύναμες οικονομίες όπως την Ελληνική. Θα εξετάσω την επίδραση τον Πλαισίων Στήριξης στην Ελληνική οικονομία. Θα παρουσιάσω συγχρηματοδοτούμενα προγράμματα στήριξης της ελληνικής οικονομίας σε θέματα πράσινης ανάπτυξης και το βαθμό συνεισφοράς και αποτελεσματικότητας τους. Τέλος, θα δούμε τα αποτελέσματα των ερωτηματολογίων προς τις επιχειρήσεις και τους ιδιώτες, αναφορικά με την πράσινη χρηματοδότηση, το βαθμό ικανοποίησης τους από την προσφορά των χρηματοδοτικών εργαλείων, και το βαθμό ευαισθητοποίησης καθώς και ενημέρωσης, των πολιτών σε οικολογικά ζητήματα.
Στάσεις και αντιλήψεις των εκπαιδευτικών πρωτοβάθμιας για την ειδική αγωγή και εκπαίδευση και τη ζήτηση σχετικής μεταπτυχιακής εξειδίκευσης
Creators: name: Δεγαΐτας, Γεώργιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Ειδική αγωγή
subject: Συνεκπαίδευση
subject: Διαφοροποιημένη διδασκαλία
subject: Επιμόρφωση
subject: Μεταπτυχιακή εξειδίκευση
subject: Κίνητρα

description: Στην παρούσα έρευνα αντικείμενο μελέτης αποτέλεσε ο τομέας της Ειδικής Αγωγής και Εκπαίδευσης (ΕΑΕ). Στόχος της είναι να αποτυπώσει και να διερευνήσει τις αντιλήψεις και τις προσδοκίες των εκπαιδευτικών πρωτοβάθμιας εκπαίδευσης σχετικά με την Ειδική Αγωγή και Εκπαίδευση και τους παράγοντες που εκτιμούν ότι καθιστούν αποτελεσματική την εφαρμογή της στην εκπαιδευτική πράξη. Επίσης, στοχεύει στον προσδιορισμό των κινήτρων που καθορίζουν τη ζήτηση μεταπτυχιακών προγραμμάτων σπουδών στον χώρο της ΕΑΕ. Η συλλογή δεδομένων έγινε μέσω ερωτηματολογίου που σχεδιάστηκε από τον ερευνητή για τις ανάγκες της έρευνας. Η έρευνα βασίζεται σε διαστρωματικά δεδομένα, σε δείγμα εκπαιδευτικών που υπηρετούν σε δομές της πρωτοβάθμιας εκπαίδευσης του Νομού Αττικής, κατά το σχολικό έτος 2019-2020. Με βάση τα πορίσματα της παρούσας έρευνας, οι εκπαιδευτικοί διατηρούν θετικές στάσεις και αναγνωρίζουν την αξία τόσο της επιμόρφωσης όσο και του θεσμού της παράλληλης στήριξης. Επιπλέον, οι εκπαιδευτικοί παρωθούνται κυρίως από αλτρουιστικά και ενδογενή (εσωτερικά κίνητρα), δηλαδή από την ανάγκη τους να αναβαθμίσουν τις γνώσεις τους, να βελτιωθούν ως επαγγελματίες και να ανταποκριθούν στις απαιτήσεις του σύγχρονου σχολείου που καλύπτει τις ανάγκες όλων των μαθητών/μαθητριών χωρίς διακρίσεις.
Analysis of a XMM-Newton Spectrum of the Extremely Hot White Dwarf in Nova V4743 Sgr
Creators: name: Rauch, Thomas
name: Werner, Klaus
name: Orio, Marina
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Classical novae occur in close binary systems (main-sequence star + white dwarf). V4743 Sgr is a very fast nova exhibiting a X-ray spectrum which is consistent with a view on the optically thick atmosphere of an extremely hot white dwarf (WD). It exhibits strong absorption features of the C V, C VI, N VI, N VII, and O VII resonance lines indicating an effective temperature of about 610 kK. We present preliminary results of a spectral analysis by means of line-blanketed non-LTE atmosphere models of a XMM-Newton RGS-1 spectrum of V4743 Sgr, taken about half a year after its outburst.
description: 3 pages, 1 figure, proceedings ITAMP Workshop: X-ray Diagnostics for Astrophysical Plasmas: Theory, Experiment, and Observation. 2004 November 15-17 Cambridge, USA
[Brev til DKNVS]
Creators: name: Bugge, Frederik Moltke
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1845

description: Sender en oversikt over antikke mynter
description: Kun vedlegget finnes. Polydoc nr. 1: 2732. Polydoc nr. 2: 2164.
Classical limit of transport in quantum kicked maps
Creators: name: Rahav, Saar
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the behavior of weak localization, conductance fluctuations, and shot noise of a chaotic scatterer in the semiclassical limit. Time resolved numerical results, obtained by truncating the time-evolution of a kicked quantum map after a certain number of iterations, are compared to semiclassical theory. Considering how the appearance of quantum effects is delayed as a function of the Ehrenfest time gives a new method to compare theory and numerical simulations. We find that both weak localization and shot noise agree with semiclassical theory, which predicts exponential suppression with increasing Ehrenfest time. However, conductance fluctuations exhibit different behavior, with only a slight dependence on the Ehrenfest time.
description: 17 pages, 13 figures. Final version
The relationship between serology of hepatitis E virus with liver and kidney function in kidney transplant patients
Creators: name: Zeraati, Abbas Ali
name: Nazemian, Fatemeh
name: Takalloo, Ladan
name: Sahebkar, Amirhossein
name: Heidari, Elahe
name: Yaghoubi, Mohammad Ali
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: Hepatitis E
subject: kidney transplant
subject: creatinine
subject: alanine aminotransferase
subject: aspartate aminotransferase
subject: alkaline phosphatase
subject: 610

description: Although hepatitis E virus (HEV) is well known to cause acute hepatitis, there are reports showing that HEV may also be responsible for progression of acute to chronic hepatitis and liver cirrhosis in patients receiving organ transplantation. In this study, we aimed to evaluate the prevalence of HEV in patients with kidney transplantation. In this study, 110 patients with kidney transplantation were recruited, and anti-HEV IgG, creatinine, alanine transaminase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and estimated glomerular filtration rate (eGFR) in the first, third and sixth months after renal transplantation were measured. The mean serum anti-HEV IgG titers in the study participants was 1.36 (range 0.23 to 6.3). Twenty-three patients were found to be seropositive for HEV Ab defined as anti-HEV IgG titer > 1.1. The difference in liver and renal function tests (creatinine, eGFR, AST, ALT and ALP) at different intervals was not significant between patients with HEV Ab titers higher and lower than 1.1 (p > 0.05). However, an inverse correlation was observed between HEV Ab and eGFR values in the first (p = 0.047, r = -0.21), third (p = 0.04, r = -0.20) and sixth (p = 0.04, r = -0.22) months after renal transplantation in patients with HEV Ab < 1.1 but not in the subgroup with HEV Ab >1.1. Also, a significant correlation between age and HEV Ab levels was found in the entire study population (p =0.001, r = 0.33). Our findings showed a high prevalence of seropositivity for anti-HEV IgG in patients receiving renal transplants. However, liver and renal functions were not found to be significantly different seropositive and seronegative patients by up to 6 months post-transplantation.
description: EXCLI Journal;Vol. 15, 2016
Mirror Symmetry and Mixed Chern-Simons Levels for Abelian 3d $\mathcal{N} = 2$ theories
Creators: name: Cheng, Shi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the mirror symmetry of abelian 3d $\mathcal{N}=2$ theories with mixed Chern-Simons levels by turning them into $\mathcal{T}_{A,N}$ theories that are defined as $N$ copies of $U(1)-[1]$ theory coupled together by mixed Chern-Simons levels $k_{ij}$. We find that $\mathcal{T}_{A,N}$ theories have many mirror dual theories with different mixed CS levels and FI parameters. As an example, we analyze $U(1)_k+ N_C \,\mathbf{C} + N_{AC} \, \mathbf{AC}$ theories by transforming these theories into certain $\mathcal{T}_{A,N}$ theories and find many equivalent effective Chern-Simons levels. Finally, we analyze mirror symmetry for theories corresponding to knots. In this work we use sphere partition functions and vortex partition functions to derive dual theories.
description: 43 pages, 8 figures
Self-similar structure of the magnetized radiation-dominated accretion disks
Creators: name: Shadmehri, Mohsen
name: Khajenabi, Fazeleh
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the effects of a large-scale magnetic field with open field lines on the steady-state structure of a radiation-dominated accretion disk, using self-similarity technique. The disk is supposed to be turbulent and possesses an effective viscosity and an effective magnetic diffusivity. We consider the extreme case in which the generated energy due to viscous and magnetic dissipation is balanced by the advection cooling. While the magnetic field outside of the disk is treated in a phenomenological way, the internal field is determined self-consistently. Magnetized and nonmagnetized solutions have the same radial dependence, irrespective of the values of the input parameters. Generally, our self-similar solutions are very sensitive to the viscosity or diffusivity coefficients. For example, the density and the rotation velocity increase when the viscosity coefficient decreases. The gas rotates with sub-Keplerian angular velocity with a factor less than unity which depends on the magnetic field configuration. Magnetic field significantly reduce disk thickness, however, tends to increase the radial velocity comparing to the nonmagnetic self-similar solutions.
description: accepted by MNRAS
Επιχειρηματικότητα και βιοοικονομία
Creators: name: Χριστολουκάς, Χρήστος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2020
Subjects: subject: Βιοοικονομία
subject: Επιχειρηματικότητα
subject: Πράσινη ανάπτυξη
subject: Βιώσιμη οικονομία
subject: Ελλάδα

description: Σήμερα η ανάγκη της προστασίας του περιβάλλον και η βιώσιμη και καθαρή ανάπτυξη είναι έννοιες οι οποίες αποκτούν ολοένα και μεγαλύτερη σημασία. Είναι γεγονός ότι οι βιολογικές επιστήμες προσθέτουν αξία σε πλήθος προϊόντων και υπηρεσιών, παράγοντας αυτό που ορισμένοι έχουν χαρακτηρίσει ως «βιοοικονομία». Από μια ευρεία οικονομική άποψη, η βιοοικονομία αναφέρεται σε μια σειρά οικονομικών δραστηριοτήτων που σχετίζονται με την εφεύρεση, την ανάπτυξη, την παραγωγή και τη χρήση βιολογικών προϊόντων και διαδικασιών. Εάν συνεχιστεί η πορεία της, η βιοοικονομία θα μπορούσε να κάνει σημαντικές κοινωνικοοικονομικές συνεισφορές στις χώρες του ΟΟΣΑ και στις χώρες που δεν είναι μέλη του ΟΟΣΑ. Τα οφέλη αυτά αναμένεται να βελτιώσουν τα αποτελέσματα για την υγεία, να ενισχύσουν την παραγωγικότητα της γεωργίας και των βιομηχανικών διαδικασιών και να ενισχύσουν την περιβαλλοντική βιωσιμότητα. Ωστόσο, η επιτυχία της βιοοικονομίας δεν είναι εγγυημένη: η αξιοποίηση του δυναμικού της θα απαιτήσει συντονισμένη πολιτική δράση από τις κυβερνήσεις για να αποκομίσει τα οφέλη της επανάστασης της βιοτεχνολογίας. Αντικείμενο της παρούσας πτυχιακής εργασίας είναι να μελετηθεί η έννοια της βιοοικονομίας και να συνδυαστεί με τη λειτουργία των επιχειρήσεων και την έννοια της επιχειρηματικότητας. Στην Ελλάδα η βιοοικονομία είναι μια επιστήμη ακόμη σε πολύ πρώιμο στάδιο δεδομένου ότι άρχισε να συζητείται μόλις από το 2015 για αυτό και σήμερα δεν υπάρχουν επιχειρήσεις οι οποίες να παράγουν αμιγώς βιοοικονομικά αγαθά. Ωστόσο τα επόμενα χρόνια αναμένεται να υπάρξει σημαντική αύξηση στο τομέα αυτόν.
The potential of halophilic and halotolerant bacteria for the production of antineoplastic enzymes: L-asparaginase and L-glutaminase
Creators: name: Shirazian, Pejman
name: Asad, Sedigheh
name: Amoozegar, Mohammad Ali
Publisher: name: Technische Universität Dortmund
Year: 2016
Subjects: subject: L-asparaginase
subject: L-glutaminase
subject: halophilic bacteria
subject: therapeutic enzymes
subject: response surface methodology
subject: 610

description: L-asparaginase and L-glutaminase can be effectively used for the treatment of patients who suffer from accute lymphoblastic leukemia and tumor cells. Microbial sources are the best source for the bulk production of these enzymes. However, their long-term administration may cause immunological responses, so screening for new enzymes with novel properties is required. Halophilic and halotolerant bacteria with novel enzymatic characteristics can be considered as a potential source for production of enzymes with different immunological properties. In this study, L-asparaginase and L-glutaminase production by halophilic bacteria isolated from Urmia salt lake was studied. Out of the 85 isolated halophilic and halotolerant bacterial strains, 16 (19 %) showed L-asparaginase activity and 3 strains (3.5 %) showed L-glutaminase activity. Strains with the highest activities were selected for further studies. Based on 16S rDNA sequence analysis, it was shown that the selected isolates for L-asparaginase and L-glutaminase production belong to the genus Bacillus and Salicola, respectively. Both enzymes were produced extracellularly. The strain with the most L-asparaginase production did not show L-glutaminase production which is medically important. The effects of key parameters including temperature, initial pH of the solution, and concentrations of glucose, asparagine or glutamine, and sodium chloride were evaluated by means of response surface methodology (RSM) to optimize enzymes production. Under the obtained optimal conditions, L-asparaginase and L-glutaminase production was increased up to 1.5 (61.7 unit/mL) and 2.6 fold (46.4 unit/mL), respectively.
description: EXCLI Journal;Vol. 15, 2016
Supermassive black hole fueling in IllustrisTNG: Impact of environment
Creators: name: Bhowmick, Aklant K.
name: Blecha, Laura
name: Thomas, July
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the association between active galactic nuclei (AGN) and environment at scales of $0.01-1\ h^{-1}$Mpc in the IllustrisTNG (TNG100) simulated universe. We identify supermassive black hole (BH) pairs and multiples within scales of 0.01, 0.1, & 1 $h^{-1}$Mpc and examine their AGN activity in relation to randomly-selected pairs and multiples. The number density of BHs in TNG100 is $n=0.06\,h^3$Mpc$^{-3}$ at $z\lesssim1.5$ ($n=0.02\,h^3$ Mpc$^{-3}$ at $z=3$). About $\sim10$% and $\sim1$% of them live in pairs and multiples, respectively, within 0.1 $h^{-1}$Mpc scales. We find that BH systems have enhanced likelihood (up to factors of 3-6) of containing high Eddington ratio ($η\gtrsim0.7$) AGN compared to random pairs and multiples. Conversely, the likelihood of an AGN to live in 0.1$h^{-1}$Mpc scale systems is also higher (by factors $\sim4$ for $η\gtrsim0.7$) compared to random pairs and multiples. We also estimate that $\sim10$% of ultra-hard X-ray selected AGN in TNG100 have detectable 2-10 keV AGN companions on $0.1\ h^{-1}$Mpc scales, in agreement with observations. On larger spatial scales ($\sim 1$ $h^{-1}$Mpc), however, no significant enhancement is associated with BH pairs and multiples, even at high Eddington ratios. The enhancement of AGN activity in rich, small-scale ($\lesssim0.1$ $h^{-1}$Mpc) environments is therefore likely to be driven by galaxy interactions and mergers. Nonetheless, the overall percentage of AGN that live in $\lesssim0.1$ $h^{-1}$Mpc scale multiples is still subdominant (at most $\sim40$% for the highest Eddington ratio AGN). Furthermore, the enhancement in Eddington ratios of BH systems(as well as merging BHs) is only up to factors of $\sim2-3$. Thus, our results support the existence of a merger-AGN connection, but they also suggest that mergers and interactions play a relatively minor role in fueling the AGN population as a whole.
description: 23 pages, 12 Figures