cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Improving machine learning-derived photometric redshifts and physical property estimates using unlabelled observations
Creators: name: Humphrey, A.
name: Cunha, P. A. C.
name: Paulino-Afonso, A.
name: Amarantidis, S.
name: Carvajal, R.
name: Gomes, J. M.
name: Matute, I.
name: Papaderos, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In the era of huge astronomical surveys, machine learning offers promising solutions for the efficient estimation of galaxy properties. The traditional, `supervised' paradigm for the application of machine learning involves training a model on labelled data, and using this model to predict the labels of previously unlabelled data. The semi-supervised `pseudo-labelling' technique offers an alternative paradigm, allowing the model training algorithm to learn from both labelled data and as-yet unlabelled data. We test the pseudo-labelling method on the problems of estimating redshift, stellar mass, and star formation rate, using COSMOS2015 broad band photometry and one of several publicly available machine learning algorithms, and we obtain significant improvements compared to purely supervised learning. We find that the gradient-boosting tree methods CatBoost, XGBoost, and LightGBM benefit the most, with reductions of up to ~15% in metrics of absolute error. We also find similar improvements in the photometric redshift catastrophic outlier fraction. We argue that the pseudo-labellng technique will be useful for the estimation of redshift and physical properties of galaxies in upcoming large imaging surveys such as Euclid and LSST, which will provide photometric data for billions of sources.
description: 10 pages, 6 figures, accepted for publication in MNRAS
Chiral organocatalysts mediated asymmetric oxyfunctionalization and tandem reaction
Creators: name: Meninno, Sara
Publisher: name: Universita degli studi di Salerno
Year: 2015
Subjects: subject: CHIM/06 CHIMICA ORGANICA
subject: Organocatalysis
subject: Tandem Reactions

description: 2013 - 2014
description: Asymmetric organocatalysis is a new rapidly growing field whose huge potential is becoming more and more evident.This PhD project has been conceived and developed in the context of non-covalent organocatalysis. The aim of this work has been to design, plan and develop new organocatalytic methodologies for the synthesis of optically active, densely functionalized, organic molecules whose functional groups are susceptible to further manipulation. The target molecules represent important motifs present in many biologically active natural and non-natural substances. The catalysts used are small chiral organic molecules, in particular the attention has been focused on bifunctional organocatalysts. The main features of the catalysts are their non-toxicity, stability to air and moisture and the ability to work under mild conditions that make them convenient tools in organic chemistry. These promoters are able to synergistically activate both the electrophile and the nucleophile through multiple hydrogen-bonding interactions provided by their acid and basic groups with the reactive groups of the reagents. The best-performing chiral scaffold of the bifunctional organocatalysts, employed in the methodologies herein developed, has been selected screening the activity of previously reported promoters such as ureas, thioureas, squaramides, amino alcohols. However, the design and synthesis of new optically pure bifunctional organocatalysts, modifying the chiral backbone and by tuning their stereoelectronic features, has been one of the objectives of this doctoral project. The stereoselective construction of a quaternary stereocentre, especially when it is an all-carbon quaternary stereocentre, is one of the most difficult goals in organic synthesis due to the steric congestion imposed by the four attached substituents. In this project, the synthesis of challenging molecules, bearing quaternary stereocentres in their structure, has been accomplished... [edited by Author]
Probing Accretion Turbulence in the Galactic Center with EHT Polarimetry
Creators: name: Ni, Chunchong
name: Broderick, Avery E.
name: Gold, Roman
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetic fields grown by instabilities driven by differential rotation are believed to be essential to accretion onto black holes. These instabilities saturate in a turbulent state; therefore, the spatial and temporal variability in the horizon-resolving images of Sagittarius A* (Sgr A*) will be able to empirically assess this critical aspect of accretion theory. However, interstellar scattering blurs high-frequency radio images from the Galactic center and introduces spurious small-scale structures, complicating the interpretation of spatial fluctuations in the image. We explore the impact of interstellar scattering on the polarized images of Sgr A* and demonstrate that for credible physical parameters, the intervening scattering is non-birefringent. Therefore, we construct a scattering mitigation scheme that exploits horizon-resolving polarized millimeter/submillimeter VLBI observations to generate statistical measures of the intrinsic spatial fluctuations and therefore the underlying accretion flow turbulence. An optimal polarization basis is identified, corresponding to measurements of the fluctuations in magnetic field orientation in three dimensions. We validate our mitigation scheme using simulated data sets and find that current and future ground-based experiments will readily be able to accurately measure the image-fluctuation power spectrum.
title: Διερεύνηση των αναγκών των εκπαιδευτικών για συμβουλευτική υποστήριξη σε συνθήκες ένταξης μαθητών με μαθησιακές δυσκολίες
titleType: AlternativeTitle
Creators: name: Κοτσιφάκη, Ελένη
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΜΑΘΗΣΗ, ΔΥΣΚΟΛΙΕΣ ΤΗΣ
subject: ΠΑΙΔΙΑ ΜΕ ΕΙΔΙΚΕΣ ΑΝΑΓΚΕΣ -- ΕΚΠΑΙΔΕΥΣΗ -- ΕΡΕΥΝΑ

description: Τα τελευταία χρόνια, η σημαντική ανάπτυξη του χώρου της εκπαίδευσης των παιδιών με ειδικές εκπαιδευτικές ανάγκες σε συνδυασμό με την ένταξή τους στο περιβάλλον της συνηθισμένης τάξης, έχει οδηγήσει στην ανάδειξη νέων αναγκών υποστήριξης για τους εκπαιδευτικούς. Η έλλειψη παροχής γνώσεων ειδικής αγωγής κατά τις προπτυχιακές σπουδές των εκπαιδευτικών, δεν επιτρέπει την ορθή αντιμετώπιση των εκπαιδευτικών ιδιαιτεροτήτων των παιδιών με ειδικές εκπαιδευτικές ανάγκες. Στην ελληνική πραγματικότητα οι εκπαιδευτικοί εγκαταλείπονται χωρίς στήριξη να αντιμετωπίσουν μόνοι τους τα ιδιαίτερα προβλήματα των παιδιών στην τάξη τους, και δυστυχώς συχνά αποτυγχάνουν ή αρνούνται να αναλάβουν οποιαδήποτε ευθύνη. Στην παρούσα εργασία διερευνώνται οι ανάγκες των εκπαιδευτικών για συμβουλευτική υποστήριξη σε συνθήκες ένταξης μαθητών με μαθησιακές δυσκολίες και εξετάζεται αν οι παράγοντες φύλο, επίπεδο σπουδών, χρόνια υπηρεσίας και ύπαρξη μαθητών με μαθησιακές δυσκολίες στην τάξη έχουν στατιστικά σημαντική επίδραση σε αυτές. Ιδιαίτερη έμφαση δίνεται στις απόψεις των εκπαιδευτικών για το προφίλ του συμβούλου, στο αν επιθυμούν τη συνεργασία μαζί του σε ατομικό ή ομαδικό επίπεδο, στη συχνότητα της συνεργασίας και τέλος το επιστημονικό του υπόβαθρο. Ως εργαλείο συλλογής δεδομένων χρησιμοποιήθηκε το ερωτηματολόγιο ενώ η στατιστική επεξεργασία των δεδομένων πραγματοποιήθηκε με το στατιστικό πακέτο spss. Το δείγμα της έρευνας αποτελούν 335 εκπαιδευτικοί πρωτοβάθμιας εκπαίδευσης από δημοτικά σχολεία 8 διαφορετικών νομών της χώρας. Σύμφωνα με τα συμπεράσματα της έρευνας προκύπτει ότι οι εκπαιδευτικοί έχουν μεγαλύτερη ανάγκη για συμβουλευτική υποστήριξη σε θεματικές όπως η τροποποίηση της συμπεριφοράς των μαθητών, οι ειδικές διδακτικές προσεγγίσεις και η διδακτική αξιολόγηση ενώ όσοι έχουν πάνω από 20 χρόνια υπηρεσίας θεωρούν ότι έχουν μικρότερη ανάγκη για συμβουλευτική υποστήριξη σε σχέση με αυτούς που έχουν 5-10.
Particle migration of suspensions in a pressure-driven flow over and through a porous structure
Creators: name: Mirbod, Parisa
name: Shapley, Nina C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Laboratory experiments were conducted to study particle migration and flow properties of non- Brownian, non-colloidal suspensions ranging from 10% to 40% particle volume fraction in a pressure-driven flow over and through a porous structure at low Reynolds number. Particle concentration maps, velocity maps and corresponding profiles were acquired using a magnetic resonance imaging (MRI) technique. The model porous medium consists of square arrays of circular rods oriented across the flow in a rectangular microchannel. It was observed that the square arrays of the circular rods modify the velocity profiles and result in heterogeneous concentration fields for various suspensions. As the bulk particle volume fraction of the suspension increases, particles tend to concentrate in the free channel relative to the porous medium while the centerline velocity profile along the lateral direction becomes increasingly blunted. Within the porous structure, concentrated suspensions exhibit smaller periodic axial velocity variations due to the geometry compared to semi-dilute suspensions (bulk volume fraction ranges from 10% to 20%) and show periodic concentration variations, where average particle concentration is slightly greater between the rods than on top of the rods. For concentrated systems, high particle concentration pathways aligned with the flow direction are observed in regions that correspond to gaps between rods within the porous medium.
description: 36 pages, 11 Figures
Nonreciprocal transmission of electromagnetic waves with nonlinear active plasmonic metasurfaces
Creators: name: Guo, Tianjing
name: Argyropoulos, Christos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Nonreciprocity is important for optical information processing, full-duplex communications, and protection of sensitive laser equipment from unwanted reflections. However, it is very challenging to obtain strong nonreciprocal response in optical frequencies, especially when nanoscale configurations are considered. In this work, we solve this problem by demonstrating a compact bifacial plasmonic metasurface that acts as a new ultrathin nonreciprocal transmission filter at near-infrared frequencies. The proposed nanostructure is simple to be practically implemented, since it is composed of two silver nanostripes with different dimensions placed on both sides of an ultrathin active dielectric spacing layer. The introduced gain leads to an exceptional point formation in the linear operation regime, where unidirectional perfect transmission due to loss compensation is achieved from the presented non-Hermitian parity-time symmetric nanoscale system. The demonstrated plasmonic metasurface breaks the Lorentz reciprocity law at the nanoscale when its nonlinear response is considered, mainly due to its spatially asymmetric geometry combined with enhanced nonlinearity. Strong and broadband nonreciprocity with unity transmission contrast from opposite directions is realized under relatively low input laser intensity values. Furthermore, asymmetric nonlinear third harmonic generation with a pronounced contrast is also illustrated by the same nonreciprocal metasurface design. The findings of this work can lead to the realization of various new self-induced nonreciprocal nanophotonic configurations, such as integrated ultrafast switches, ultrathin protective coatings, and asymmetric directional imaging devices.
title: Παιδική παχυσαρκία, εικόνα σώματος και ο κοινωνικός στιγματισμός των νηπίων
titleType: AlternativeTitle
Creators: name: Πουλοπούλου, Ανδρομάχη Ι.
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΠΑΧΥΣΑΡΚΙΑ ΣΤΑ ΠΑΙΔΙΑ
subject: ΠΑΙΔΙΑ -- ΔΙΑΤΡΟΦΗ

description: Η παρούσα έρευνα μελετά την παιδική παχυσαρκία, την εικόνα σώματος και τον κοινωνικό στιγματισμό του σωματικού βάρους σε παιδιά νηπιακής ηλικίας. Σε ένα δείγμα 223 νηπίων με μέση ηλικία τα πέντε έτη από την ευρύτερη περιοχή του Βόλου εξετάστηκε η παιδική παχυσαρκία μέσω του Δείκτη Μάζας Σώματος (Kg/m2), Στη συνέχεια τους ζητήθηκε να επιλέξουν από έξι φιγούρες παιδιών αυτή που τους μοιάζει περισσότερο και τέλος, να ιεραρχήσουν τις φιγούρες αυτές, βάζοντας πρώτη αυτή που επιθυμούν περισσότερο για φίλο τους και τελευταία αυτή που επιθυμούν λιγότερο για φίλο τους. Τα αποτελέσματα έδειξαν υψηλά ποσοστά παιδικής παχυσαρκίας στα νήπια αλλά και υποεκτίμηση του σωματικού τους βάρους, παρουσιάζοντας λανθασμένη εικόνα σώματος. Τέλος, τα αποτελέσματα έδειξαν ότι η συντριπτική πλειοψηφία του δείγματός μας δεν επιθυμεί το παχύσαρκο παιδί για φίλο του. Διαφαίνεται, λοιπόν, ότι ο κοινωνικός στιγματισμός της παχυσαρκίας έχει αναπτυχθεί ήδη από την ηλικία των πέντε ετών, ακόμη και από παιδιά με υπερβάλλον σωματικό βάρος. Διαφορές ως προς το φύλο που βρέθηκαν αφορούσαν, από τη μεριά των αγοριών στον εντονότερο κοινωνικό στιγματισμό των κινητικών προβλημάτων του ατόμου, και από τη μεριά των κοριτσιών στον εντονότερο κοινωνικό στιγματισμό των αισθητικών προβλημάτων (εμφανισιακά προβλήματα) και τη παχυσαρκίας. Τέλος, βρέθηκε ότι ακόμη και νήπια που είναι παχύσαρκα και έχουν σωστή εικόνα σώματος πάλι δεν επιθυμούν την φιγούρα με το παχύσαρκο παιδί για φίλο τους.
ALMA Observations of the Host Galaxy of GRB090423 at z=8.23: Deep Limits on Obscured Star Formation 630 Million Years After the Big Bang
Creators: name: Berger, E.
name: Zauderer, B. A.
name: Chary, R. -R.
name: Laskar, T.
name: Chornock, R.
name: Tanvir, N. R.
name: Stanway, E. R.
name: Levan, A. J.
name: Levesque, E. M.
name: Davies, J. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present rest-frame far-infrared (FIR) and optical observations of the host galaxy of GRB090423 at z=8.23 from the Atacama Large Millimeter Array (ALMA) and the Spitzer Space Telescope, respectively. The host remains undetected to 3-sigma limits of Fnu(222 GHz)<33 microJy and Fnu(3.6 micron)<81 nJy. The FIR limit is about 20 times fainter than the luminosity of the local ULIRG Arp220, and comparable to the local starburst M82. Comparing to model spectral energy distributions we place a limit on the IR luminosity of L_IR(8-1000 micron)<3e10 Lsun, corresponding to a limit on the obscured star formation rate of SFR_IR<5 Msun/yr; for comparison, the limit on the unobscured star formation rate from Hubble Space Telescope rest-frame UV observations is SFR_UV<1 Msun/yr. We also place a limit on the host galaxy stellar mass of <5e7 Msun (for a stellar population age of 100 Myr and constant star formation rate). Finally, we compare our millimeter observations to those of field galaxies at z>4 (Lyman break galaxies, Ly-alpha emitters, and submillimeter galaxies), and find that our limit on the FIR luminosity is the most constraining to date, although the field galaxies have much larger rest-frame UV/optical luminosities than the host of GRB090423 by virtue of their selection techniques. We conclude that GRB host galaxies at z>4, especially those with measured interstellar medium metallicities from afterglow spectroscopy, are an attractive sample for future ALMA studies of high redshift obscured star formation.
description: Submitted to ApJ; 9 pages, 3 figures, 2 tables
title: Η σχέση του υποδιευθυντή σχολικής μονάδας πρωτοβάθμιας εκπαίδευσης με το διευθυντή και ο ρόλος του ως παράγοντας αποτελεσματικής ηγεσίας και διαμόρφωσης σχολικής κουλτούρας
titleType: AlternativeTitle
Creators: name: Κουνούκλα, Στυλιανή Η.
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΣΧΟΛΙΚΟΙ ΔΙΕΥΘΥΝΤΕΣ
subject: ΕΚΠΑΙΔΕΥΣΗ -- ΔΙΟΙΚΗΣΗ ΚΑΙ ΟΡΓΑΝΩΣΗ

description: Η ερευνητική αυτή προσπάθεια επιχειρεί να ρίξει φως και να εξετάσει τη σχέση του υποδιευθυντή σχολικής μονάδας πρωτοβάθμιας εκπαίδευσης στη Φθιώτιδα με τον υποδιευθυντή ως παράγοντα αποτελεσματικής ηγεσίας και θεματοφύλακα και εγγυητή θετικής σχολικής κουλτούρας. Παράλληλα ερευνά το μοντέλο συνεργασίας των δύο αυτών πυλώνων διοίκησης μέσα στη σχολική κοινότητα φωτίζοντας πλευρές της σχέσης τους και τις αντιλήψεις που διαμορφώνονται κυρίως από την πλευρά του υποδιευθυντή για τον προϊστάμενό του διευθυντή. Τα πορίσματα της έρευνας αναδεικνύουν τη σημασία της εφαρμογής αποτελεσματικής ηγεσίας στη σχολική μονάδα. Παράλληλα, ερευνώνται τα δυνατά και τα αδύνατα σημεία της αποτελεσματικής ηγεσίας, αλλά και οι ευκαιρίες και οι απειλές που αντιμετωπίζει ο υποδιευθυντής, κυρίως, στον πρωτοβάθμιο εκπαιδευτικό χώρο. Αναμφισβήτητα, αποτελεσματική ηγεσία αποτελεί σημαντικό παράγοντα για την αποτελεσματικότητα του σχολείου και την ποιοτική και ποσοτική εξέλιξη, τόσο σε ακαδημαϊκά αποτελέσματα των μαθητών (παιδαγωγική διάσταση), όσο και στη διαχείριση της εξουσίας (διοικητική διάσταση). Στην παρούσα έρευνα ακολουθήθηκε ποιοτική προσέγγιση. Τα στοιχεία συλλέχθηκαν με την τεχνική της συνέντευξης από 9 διευθυντές και ισάριθμους υποδιευθυντές σε σχολεία της Πρωτοβάθμιας εκπαίδευσης στην Περιφερειακή Ενότητα Φθιώτιδας. Ερωτήσεις, επίσης, υποβλήθηκαν και σε ένα τυχαίο 3 δείγμα εκπαιδευτικών από τα περισσότερα (5 συνολικά) σχολεία που επιλέχθηκαν (σύνολο εκπαιδευτικών 30), οι οποίοι απάντησαν γραπτά σε ερωτήσεις ανοιχτού τύπου. ταυτόχρονη παρατήρηση και καταγραφή σε ένα άτυπο ημερολόγιο επιτόπιας παρατήρησης κατά τη διάρκεια της επίσκεψης στα σχολεία έδειξε ιδιαίτερα χρήσιμο στην εξαγωγή συμπερασμάτων. Τα συμπεράσματα της έρευνας εντοπίζουν τη σημασία της συμβολής του υποδιευθυντή στη διαμόρφωση θετικής σχολικής κουλτούρας και την ανάδειξή του σε παράγοντα αποτελεσματικής ηγεσίας. Δίνουν έμφαση στην αρμονική συνεργασία, στην καλλιέργεια διαπροσωπικών σχέσεων μεταξύ των δύο πυλώνων εργασίας και αναδεικνύουν τα ποιοτικά χαρακτηριστικά της προσωπικότητας του υποδιευθυντή σε βασική παράμετρο αποτελεσματικής ηγεσίας. Τέλος, αναγνωρίζεται ανάγκη περιορισμού των διδακτικών καθηκόντων για την πληρέστερη ανταπόκριση του υποδιευθυντή στα καθήκοντά του, αλλά και ανάγκη για επιμόρφωση σε θέματα οργάνωσης και διοίκησης της εκπαίδευσης.
title: Ο ρόλος του διευθυντή στο νηπιαγωγείο
titleType: AlternativeTitle
Creators: name: Τσιώλη, Στέλλα
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΣΧΟΛΙΚΟΙ ΔΙΕΥΘΥΝΤΕΣ
subject: ΝΗΠΙΑΓΩΓΕΙΑ -- ΕΚΠΑΙΔΕΥΣΗ, ΠΡΟΣΧΟΛΙΚΗ

description: Η διοίκηση αποτελεί αντικείμενο επιστημονικής μελέτης και πρακτική διαχείρισης που αναπτύχθηκε ταχύτατα τα τελευταία 70 χρόνια και συνεχίζει να εξελίσσεται καθώς αποτελεί νευραλγικό τομέα για κάθε οργανισμό και σύστημα, διότι καθορίζει την οργάνωση και παρέχει τον απαιτούμενο μηχανισμό για να επιτελέσει τον προορισμό του. Οι σύγχρονες τεχνικές διοίκησης (management) υποστηρίζουν την ορθολογική λήψη αποφάσεων, την διαχείριση οργανωτικών διαδικασιών και συμβάλλουν καθοριστικά στην αποτελεσματική λειτουργία και την ανταγωνιστικότητα των επιχειρήσεων, επηρεάζοντας με αυτόν τον τρόπο τη ζωή των ανθρώπων που κινούνται μέσα και έξω από αυτές. Οι οργανισμοί οι οποίοι προσφέρουν υπηρεσίες, συμπεριλαμβανομένων και των εκπαιδευτικών, δεν διαφέρουν σημαντικά από τις επιχειρήσεις, γι αυτό και είναι χρήσιμο τα διευθυντικά στελέχη της εκπαίδευσης να εφαρμόζουν τις αρχές του σύγχρονου μάνατζμεντ. Οι προκλήσεις λοιπόν του 21ου αιώνα απαιτούν ένα σχολείο ευέλικτο, ικανό να προσαρμόζεται ανταγωνιστικά στις αλλαγές και να αντιμετωπίζει δημιουργικά την καινούργια γνώση στο πλαίσιο της κοινωνίας της πληροφορίας. Πρόθεση της παρούσας εργασίας είναι να παρουσιάσει βασικά ζητήματα διοίκησης και ηγεσίας σε θεωρητικό επίπεδο, μέσα από τις απόψεις θεωρητικών του πεδίου όσον αφορά τους τρόπους διοίκησης και ηγεσίας των οργανισμών και ειδικότερα των εκπαιδευτικών οργανισμών. Επίσης, και το πρακτικό επίπεδο αναλύεται, ερευνώντας και μελετώντας τον τρόπο διοίκησης των διευθυντών των νηπιαγωγείων στην πόλη της Λάρισας. Επιπλέον, η παρούσα εργασία εξετάζει τα κίνητρα που ωθούν τους εκπαιδευτικούς για την κάλυψη της θέσης του διευθυντή, τα προσόντα τα οποία πρέπει να διακατέχει ο διευθυντής, τον τρόπο συνεργασίας με την εκπαιδευτική κοινότητα καθώς και τα προβλήματα που αντιμετωπίζει στην καθημερινότητα του σχολείου. Το δείγμα της έρευνας αποτέλεσαν 40 διευθυντές νηπιαγωγείων της πόλης της Λάρισας, οι οποίοι απάντησαν σε ερωτηματολόγιο αυτοαναφοράς σχετικά με το ρόλο του διευθυντή στο νηπιαγωγείο όπως τον αντιλαμβάνονται οι ίδιοι. Η στατιστική ανάλυση των δεδομένων έγινε με το πρόγραμμα SPSS.
Identifying the 3FHL Catalog. VI. Swift Observations of 3FHL Unassociated Objects with Source Classification via Machine Learning
Creators: name: Joffre, S.
name: Silver, R.
name: Rajagopal, M.
name: Ajello, M.
name: Torres-Albà, N.
name: Pizzetti, A.
name: Marchesi, S.
name: Kaur, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Third Catalog of Hard Fermi Large Area Telescope Sources (3FHL) reports the detection of 1556 objects at E > 10 GeV. However, 177 sources remain unassociated and 23 are associated with a ROSAT X-ray detection of unknown origin. Pointed X-ray observations were conducted on 30 of these unassociated and unknown sources with Swift-XRT. A bright X-ray source counterpart was detected in 21 out of 30 fields. In five of these 21 fields, we detected more than one X-ray counterpart, totaling 26 X-ray sources analyzed. Multiwavelength data was compiled for each X-ray source detected. We find that 21 out of the 26 X-ray sources detected display the multiwavelength properties of blazars, while one X-ray source displays the characteristics of a Galactic source. Using trained decision tree, random forest, and support vector machine models, we predict all 21 blazar counterpart candidates to be BL Lacertae objects (BL Lacs). This is in agreement with BL Lacs being the most populous source class in the 3FHL.
description: 15 pages, 11 figures, interactive plot link see, https://authortools.aas.org/AAS40568/figNint.html
Seed diversity catalogue of the Snap Bean Panel
Creators: name: Ferreira, Juan Jose
name: Campa, Ana
name: Garcia-Fernandez, Carmen
Publisher: name: Zenodo
Year: 2021
Subjects: snap bean, phenotyping, seed diversity, diversity panel,

description: This working document shows the seed diversity included in the Snap Bean Panel (SBP). Currrently, the document contains 300 of the 311 selected lines.
What Causes Thermal Runaway? (Introduction)
Creators: name: Office Of Research Experiences & Education
Publisher: name: UL Research Institutes
Year: 2024
Subjects: classificationCode: 400911
subject: Power electronics
classificationCode: 400507
subject: Fire safety engineering
classificationCode: 400803
subject: Electrical energy generation (incl. renewables, excl. photovoltaics)

description: In lithium-ion cells, the movement of electrons and lithium produces electricity. The process of charge and discharge is normally accompanied by a small amount of heat. In ideal conditions, the heat is able to dissipate from the cell. In thermal runaway, the lithium-ion cell generates heat at a rate several times higher than the rate at which heat dissipates from the cell.
SAIDA ZUNNUNOVA ASARLARIDA KURASHCHAN QAHRAMON TALQINI
Creators: name: Ubaydullayeva, Maftuna
name: Murodova, Umida
Publisher: name: Zenodo
Year: 2023

description: XX asr o'zbek adabiyotida Saida Zununovaning o'z o'rni bor. Istiqlol yillarida tariximizga, ma'naviy merosimizga munosabat tubdan o'zgardi. Mustabid tuzum davrida toptalgan milliy-adabiy qadriyatlarimizni tiklash borasida qator ishlar amalga oshirildi. Fitrat,  Abdulla Qodiriy,  Cho'lpon singari qatag'on qurbonlari ijodini yangicha baholash,  talqin etish bilan barobar yakkahokim mustabid mafkura, sho'ro adabiyoti siyosati ta'siri, zug'umi, tahdidi ostida qalam tebratgan G'afur G'ulom, Oybek, Abdulla Qahhor singari so'z ustalari ijodiy merosini qaytadan xolis o'rganish jarayoni  boshlandi. XX asr o'zbek adabiyoti  rivojida yuqorida tilga olingan adiblar  Zulfiya, Maqsud Shayxzoda, Mirtemir, Said Ahmad va Asqad Muxtor  singari  adabiy avlod vakillari qatorida  nasrda va nazmda tanho bo'lgan  Saida Zununovaning ham muayyan xizmati bor. Shoira murakkab va  tahlikali  zamonda ta'qibu tazyiqlar ostida yashab, ijod qildi.
title: Αξιολόγηση της μετάβασης από τα εθνικά λογιστικά πρότυπα στα ΔΛΠ : διεθνής εμπειρική ανάλυση των λογιστικών επιπτώσεων
titleType: AlternativeTitle
Creators: name: Χριστοπούλου, Παρασκευή Ι.
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΛΟΓΙΣΤΙΚΗ -- ΠΡΟΤΥΠΑ
subject: ΧΡΗΜΑΤΟΟΙΚΟΝΟΜΙΚΕΣ ΚΑΤΑΣΤΑΣΕΙΣ -- ΠΡΟΤΥΠΑ

description: Η παρούσα εργασία έχει σαν στόχο να εξετάσει τις επιπτώσεις της μετάβασης από τα εθνικά λογιστικά πρότυπα στα ΔΑΠ. Η μελέτη επικεντρώνεται σε τρεις χώρες την Ιταλία, την Ισπανία και την Ελβετία. Οι δύο πρώτες χώρες χρησιμοποιούν υποχρεωτικά τα ΔΑΠ ενώ η Ελβετία, που δεν ανήκει στην ΕΕ χρησιμοποιεί εθελοντικά τα ΔΛΠ. Αρχικά χρησιμοποιείται ο δείκτης σύγκρισης του Gray (Gray, 1980, Weetman et al. 1998) προκειμένου να εντοπιστούν οι διαφορές που προκύπτουν στους χρηματοοικονομικούς δείκτες. Στη συνέχεια χρησιμοποιείται η μέθοδος λογιστικής παλινδρόμησης από την οποία παρατηρείται ότι οι εταιρίες που χρησιμοποιούν εθελοντικά τα ΔΛΠ τείνουν να είναι περισσότερο οικονομικά εύρωστες από τις υπόλοιπες εταιρίες. Επίσης εξετάζεται η χειραγώγηση των κερδών των επιχειρήσεων και κατά πόσο είναι επιρρεπείς στα κέρδη διαχείρισης. Παρατηρείται ότι οι εταιρίες που εφαρμόζουν εθελοντικά τα ΔΛΠ εμφανίζουν χαμηλότερα κέρδη διαχείρισης από τις εταιρίες που τα εφαρμόζουν υποχρεωτικά. Τέλος, παρατηρείται αρνητική σχέση μεταξύ της συντηρητικότητας με και χωρίς όρους.
Interacting supernovae from photoionization-confined shells around red supergiant stars
Creators: name: Mackey, Jonathan
name: Mohamed, Shazrene
name: Gvaramadze, Vasilii V.
name: Kotak, Rubina
name: Langer, Norbert
name: Meyer, Dominique M. -A.
name: Moriya, Takashi J.
name: Neilson, Hilding R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Betelgeuse, a nearby red supergiant, is a runaway star with a powerful stellar wind that drives a bow shock into its surroundings. This picture has been challenged by the discovery of a dense and almost static shell that is three times closer to the star than the bow shock and has been decelerated by some external force. The two physically distinct structures cannot both be formed by the hydrodynamic interaction of the wind with the interstellar medium. Here we report that a model in which Betelgeuse's wind is photoionized by radiation from external sources can explain the static shell without requiring a new understanding of the bow shock. Pressure from the photoionized wind generates a standing shock in the neutral part of the wind and forms an almost static, photoionization-confined shell. Other red supergiants should have significantly more massive shells than Betelgeuse, because the photoionization-confined shell traps up to 35 per cent of all mass lost during the red supergiant phase, confining this gas close to the star until it explodes. After the supernova explosion, massive shells dramatically affect the supernova lightcurve, providing a natural explanation for the many supernovae that have signatures of circumstellar interaction.
description: 22 pages, 8 figures, authors' version, accepted for publication in Nature; minor differences may exist compared with published version; final version available at http://dx.doi.org/10.1038/nature13522
title: Ψυχολογικό συμβόλαιο μεταξύ συνδικάτων και μελών
titleType: AlternativeTitle
Creators: name: Καλλιγέρη, Αικατερίνη Κ.
Publisher: name: University of Thessaly
Year: 2011
Subjects: subject: ΕΡΓΑΤΙΚΕΣ ΕΝΩΣΕΙΣ -- ΕΛΛΑΔΑ
subject: ΣΥΝΔΙΚΑΛΙΣΜΟΣ -- ΙΣΤΟΡΙΑ -- ΕΛΛΑΔΑ

description: Παρατηρήσεις έκδοσης: παρουσιάζεται μερική απώλεια περιεχομένου λόγου βιβλιοδεσίας.
description: Η παρούσα εργασία πραγματεύεται το ψυχολογικό συμβόλαιο μεταξύ των συνδικάτων και των μελών τους. Υπάρχει πληθώρα μελετών για το ψυχολογικό συμβόλαιο. Εντούτοις, η διεθνής βιβλιογραφία στερείται μελετών με αυτή την κατεύθυνση. Για την εργασία συγκεντρώθηκαν 261 ερωτηματολόγια από μέλη 14 διαφορετικών συνδικάτων δημοσίων υπαλλήλων που περιλάμβαναν υποχρεώσεις και των δύο μερών. Τα δεδομένα αναλύθηκαν με το στατιστικό πρόγραμμα SPSS. Όπως προκύπτει από την έρευνα, υπάρχει μια τάση ανεπαρκούς ικανοποίησης των μελών από την ανταπόκριση των συνδικάτων στις υποχρεώσεις τους, ενώ η πλειοψηφία των μελών ανταποκρίνονται σε ικανοποιητικό βαθμό στις υποχρεώσεις τους. Βρέθηκε ότι σημαντικοί παράγοντες που επηρεάζουν τις αντιλήψεις των μελών για την ανταπόκριση των ιδίων και των συνδικάτων στις υποχρεώσεις τους είναι η ηλικία, η συνολική προϋπηρεσία, η υπηρεσία που απασχολούνται και η ιδιότητα τους ως ενεργά ή μη ενεργά μέλη.
An approach to prevent frailty in community dwelling older adults: a pilot study performed in Campania region in the framework of the PERSSILAA project
Creators: name: Cataldi, Mauro
name: De Luca, Vincenzo
name: Tramontano, Giovanni
name: Del Giudice, Carmine
name: Grimaldi, Iolanda
name: Cuccaro, Paula
name: Speranza, Patrizia
name: Iadicicco, Giuseppe
name: Iadicicco, Vincenzo
name: Carotenuto, Felicia
name: Riccio, Paolo A.
name: Di Spigna, Gaetano
name: Renzullo, Andrea
name: Vuolo, Laura
name: Barrea, Luigi
name: Savastano, Silvia
name: Colao, Annaria
name: Liotta, Giuseppe
name: Iaccarino, Guido
name: Abete, Pasquale
name: Buono, Pasqualina
name: Vollenbroek-Hutten, Miriam
name: Illario, Maddalena
Publisher: name: Universita' degli Studi di Salerno
Year: 2019
Subjects: Physical training
Community
Parish
ICT
Physical function
Physical performance

description: We developed and tested an innovative physical training method in older adults that embeds the gym program into everyday life in the most conservative way possible. Physical training was included in the activities of local parishes where older women from Southern Italy spend most of their free time and was delivered by trained physical therapists with the support of an ICT tool known as CoCo. 113 older women (aged 72.0 [69.0-75.0] years) noncompliant to conventional exercise programs participated to the study. 57 of them underwent the final anthropometric assessment and 50 the final physical tests. In study completers handgrip strength and physical performance evaluated with the chair-stand, the two minutes step and the chair-sit and -reach tests significantly improved. Quality of life as evaluated with the EuroQol-5dimension (EQ-5D) questionnaire improved as well. In conclusion, a training program designed to minimally impact on life habits of older people is effective in improving fitness in patients noncompliant to other to physical exercise programs.
The X3ML toolkit: How to map excavation data to CIDOC CRM
Creators: name: Theodoridou, Maria
name: Kritsotakis, Vangelis
Publisher: name: Zenodo
Year: 2022
Subjects: Archaeology
Semantic modelling
Excavation

description: Data aggregation and integration have the potential to create rich resources useful for a range of different purposes, from research and data modelling to education and engagement. CIDOC CRM and the family of compatible models provide a sufficient target schema for the integration of heterogeneous excavation data. The Centre for Cultural Informatics, ICS-FORTH, developed the X3ML toolkit, a set of small, open source, micro services that follow the SYNERGY Reference Model. The key components of the toolkit are: (a) X3ML Mapping Definition Language, (b) 3M Mapping Memory Manager, (c) X3ML Engine and (d) RDF Visualiser. These are designed with open interfaces, which can be easily customised and adapted to complex environments. This presentation addresses the specifics of the X3ML toolkit to map excavation data.
Styles et al., 2021. Communication during quarantine: Changes in language exposure for 8 to 36-month-olds in Singapore
Creators: name: Woon, Fei Ting
name: Shamala Sundaray
name: Styles, Suzy J
name: Eshwaaree C Yogarrajah
Publisher: name: OSF
Year: 2023
Subjects: Bilingualism
Code mixing
Language Acquisition
Language Development
Language Planning
Language skills
Multilingualism
Singapore
Translanguaging

description: Conference paper presented at SRCD April 7-9 2021 Virtual Biennial Meeting
THE STUDY OF COTTON GROWTH UNDER ORGANIC FARMING CONDITIONS
Creators: name: Allamjarova, Gulbakhar
name: Ismaylov, Uzaqbay
Publisher: name: Zenodo
Year: 2023

description: The study of cotton growth under organic farming conditions focuses on understanding how organic farming practices affect the growth, yield, and quality of cotton crops. Researchers investigate key areas such as soil health, nutrient management, weed management, pest and disease management, fiber quality, and environmental impact. By studying these factors, researchers aim to provide insights into sustainable agricultural practices that can enhance cotton production while minimizing environmental harm and promoting social responsibility. The findings can inform farmers, policymakers, and consumers about the benefits and challenges of organic cotton farming and contribute to the development of sustainable cotton production systems.
On the origin of the North Celestial Pole Loop
Creators: name: Marchal, Antoine
name: Martin, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The North Celestial Pole Loop (NCPL) provides a unique laboratory for studying the early stage precursors of star formation. Uncovering its origin is key to understanding the dynamical mechanisms that control the evolution of its contents. In this study, we explore the 3D geometry and the dynamics of the NCPL using high-resolution dust extinction data and H I data, respectively. We find that material toward Polaris and Ursa Major is distributed along a plane similarly oriented to the Radcliffe wave. The Spider projected in between appears disconnected in 3D, a discontinuity in the loop shape. We find that the elongated cavity that forms the inner part of the NCPL is a protrusion of the Local Bubble (LB) likely filled with warm (possibly hot) gas that passes through and goes beyond the location of the dense clouds. An idealized model of the cavity as a prolate spheroid oriented toward the observer, reminiscent of the cylindrical model proposed by Meyerdierks et al. (1991), encompasses the protrusion and fits into arcs of warm H I gas expanding laterally to it. As first argued by Meyerdierks et al. (1991), the non-spherical geometry of the cavity and the lack of OB stars interior to it disfavor an origin caused by a single point-like source of energy or multiple supernovae. Rather, the formation of the protrusion could be related to the propagation of warm gas from the LB into a pre-existing non-uniform medium in the lower halo, the topology of which was likely shaped by past star formation activity along the Local Arm.
description: 15 pages, 13 figures, accepted for publication in ApJ
Simulations and quality control of the silicon strip detectors of the ZEUS microvertex detector
Creators: name: Martens, Jan
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1999
Subjects: thesis
semiconductor detector: vertex
semiconductor detector: microstrip
fabrication
luminosity: upgrade
electronics: readout
numerical calculations: Monte Carlo
ZEUS
DESY HERA Stor

description: Universität Hamburg, Diplomarbeit, 1999; 67 pp. (1999). = Universität Hamburg, Diplomarbeit, 1999
ПРОФИЛАКТИКА ИНСПЕКТОРИ ТОМОНИДАН ФИРИБГАРЛИКНИНГ ВИКТИМОЛОГИК ПРОФИЛАКТИКАСИНИ ТАШКИЛ ЭТИШ
Creators: name: Алиқулов, Суннат
Publisher: name: Zenodo
Year: 2023

description: Мақолада инспектори томонидан фирибгарликнинг виктимологик профилактикасини ташкил этиш асослари ҳамда тушунчаларини ёритилган. Шунингдек, фирибгарликнинг виктомолик тушунчаси бу борада муаллиф томонидан ҳуқуқбузарликларнинг барвақт виктимологик профилактикаси чора-тадбирларини амалга оширишда  аниқ ва ҳуқуқбузарликлар виктимологик профилактикаси  объектлари таснифи ҳамда уларнинг бир-биридан фарқли жиҳатлари ёритиб берилган.
Learning to Optimize in Model Predictive Control
Creators: name: Sacks, Jacob
name: Boots, Byron
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Sampling-based Model Predictive Control (MPC) is a flexible control framework that can reason about non-smooth dynamics and cost functions. Recently, significant work has focused on the use of machine learning to improve the performance of MPC, often through learning or fine-tuning the dynamics or cost function. In contrast, we focus on learning to optimize more effectively. In other words, to improve the update rule within MPC. We show that this can be particularly useful in sampling-based MPC, where we often wish to minimize the number of samples for computational reasons. Unfortunately, the cost of computational efficiency is a reduction in performance; fewer samples results in noisier updates. We show that we can contend with this noise by learning how to update the control distribution more effectively and make better use of the few samples that we have. Our learned controllers are trained via imitation learning to mimic an expert which has access to substantially more samples. We test the efficacy of our approach on multiple simulated robotics tasks in sample-constrained regimes and demonstrate that our approach can outperform a MPC controller with the same number of samples.
description: Proceedings of the IEEE Conference on Robotics and Automation (ICRA), 2022. Paper is 6 pages with 2 figures and 2 tables
What Causes Thermal Runaway? (Fact Sheet)
Creators: name: Office Of Research Experiences & Education
Publisher: name: UL Research Institutes
Year: 2024
Subjects: classificationCode: 400911
subject: Power electronics
classificationCode: 400507
subject: Fire safety engineering
classificationCode: 400803
subject: Electrical energy generation (incl. renewables, excl. photovoltaics)

description: Faults in a lithium-ion cell can result in thermal runaway, a phenomenon in which the lithium-ion cell enters an uncontrollable, self-heating state – potentially resulting in extremely high temperatures, smoke and fire. These faults can be caused by internal failure or external conditions.
On the $L^p$-Poisson semigroup associated with elliptic systems
Creators: name: Martell, José María
name: Mitrea, Dorina
name: Mitrea, Irina
name: Mitrea, Marius
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 35J47, 47D06, 47D60, 35C15, 35J57, 42B37

description: We study the infinitesimal generator of the Poisson semigroup in $L^p$ associated with homogeneous, second-order, strongly elliptic systems with constant complex coefficients in the upper-half space, which is proved to be the Dirichlet-to-Normal mapping in this setting. Also, its domain is identified as the linear subspace of the $L^p$-based Sobolev space of order one on the boundary of the upper-half space consisting of functions for which the Regularity problem is solvable. Moreover, for a class of systems containing the Lamé system, as well as all second-order, scalar elliptic operators, with constant complex coefficients, the action of the infinitesimal generator is explicitly described in terms of singular integral operators whose kernels involve first-order derivatives of the canonical fundamental solution of the given system. Furthermore, arbitrary powers of the infinitesimal generator of the said Poisson semigroup are also described in terms of higher order Sobolev spaces and a higher order Regularity problem for the system in question. Finally, we indicate how our techniques may adapted to treat the case of higher order systems in graph Lipschitz domains.
title: When Transaction-Level Wage Transparency Can Increase Consumer Preference
Creators: name: Stich, Lucas
name: Ungemach, Christoph
name: Fuchs, Christoph
name: Spann, Martin
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: Firms are usually reluctant to disclose information about the production costs of their goods and services; however, some firms have recently started to disclose cost information to consumers. This research examines the consequences of disclosing transaction-level wage information on consumer preferences. Six experiments, both in field and lab settings across multiple service domains, document that disclosing a service worker’s compensation can increase consumer preference for that firm’s service if the compensation is sufficiently high (i.e., perceived as fair by consumers). This greater preference for services provided in a fair-wage setting is driven by consumers’ feelings of anticipated guilt and higher expectations concerning quality. Available social norms regarding fair compensation and the nature of the service worker (human vs. non- human) are both identified as important boundary conditions of the proposed process. This research offers a first step toward understanding the psychological and behavioral consequences of disclosing transaction-level wage information to consumers, thereby enabling managers to better identify when they should disclose wage information as part of their marketing strategy. This research also informs policy makers on how to encourage social preferences and consumer choices in order to promote fair outcomes for consumers, firms, and workers.
The Young Finns and the Finnish parliamentary reform of 1906
Creators: name: Kortti Jukka
Publisher: name: Петербургский исторический журнал
Year: 2017
Subjects: РУСИФИКАЦИЯ
РЕВОЛЮЦИЯ 1905 Г
ВЕЛИКОЕ КНЯЖЕСТВО ФИНЛЯНДСКОЕ
ВСЕОБЩАЯ ЗАБАСТОВКА
ОДНОПАЛАТНЫЙ СЕЙМ
ЛИБЕРАЛЬНАЯ ИНТЕЛЛИГЕНЦИЯ
МЛАДОФИННЫ
RUSSIFICATION
RUSSIAN REVOLUTION OF 1905
'THE GREAT STRIKE'
UNICAMERAL PARLIAMENT
PARLIAMENTARY REFORM
LIBERAL INTELLIGENTSIA
THE YOUNG FINNS
CULTURAL PERIODICAL

description: The Finnish unicameral parliament one of the most modern at the time was established in 1906. All this took place after the period in which the Tsar or Emperor as the Finns called him the Russian governments and Russian nationalists had started the Russification (also known as the ‘first years of oppression:’ 1899-1905) of Finland, which aimed to limit the special status of the Grand Duchy of Finland. As part of the Russian revolution of 1905, a general strike in Finland resulted in universal suffrage and the unicameral parliament. Although the strike and parliamentary reform were a victory for the constitutionalists (the ‘Young Finns’), the first unicameral parliament election was a great disappointment for this elite. In this article, I examine how the Finnish liberal-minded intelligentsia responded to these turbulent times. The focus of the study is to show how the cultural elite contributed to societal upheaval and political turmoil. The main sources of the article are the Finnish cultural periodicals of the era.
Coding da Vinci goes Wikidata
Creators: name: Gnyp, Anna
name: Westphal, Maximilian
name: Casties, Nils
name: Kyriazis, Ilias
name: Thiel, Sonja
Publisher: name: Zenodo
Year: 2022
Subjects: Open Data
Wikidata
GLAM

description: Coding da Vinci Datensets auf Wikidata abbilden und nachhaltig zugänglich machen.
The study of contact properties in edge-contacted graphene-aluminum Josephson junctions
Creators: name: Huang, Zhujun
name: Lotfizadeh, Neda
name: Elfeky, Bassel H.
name: Kisslinger, Kim
name: Cuniberto, Edoardo
name: Yu, Peng
name: Hatefipour, Mehdi
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Shabani, Javad
name: Shahrjerdi, Davood
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transparent contact interfaces in superconductor-graphene hybrid systems are critical for realizing superconducting quantum applications. Here, we examine the effect of the edge-contact fabrication process on the transparency of the superconducting aluminum-graphene junction. We show significant improvement in the transparency of our superconductor-graphene junctions by promoting the chemical component of the edge contact etch process. Our results compare favorably with state-of-the-art graphene Josephson junctions. The findings of our study contribute to advancing the fabrication knowledge of edge-contacted superconductor-graphene junctions.
Performative pop. Faserland (1995) di Christian Kracht
Creators: name: Corrado, Sergio
Publisher: name: Roma : Carocci
Year: 2013
Subjects: Faserland
Pop
Performance

description: Kracht’s first novel is about a trip through Germany. The first-person narrator, a semialcoholic young man belonging to the upper class, travels from the north to the south of the country; he spends his time going to parties and nightclubs, getting more and more confused. In his “performance” he mentions numerous brands of consumer goods – clothes, cars, liquors, but also butter, yogurt, stick ice creams – and names of pop-rock bands. Kracht, who is one of the new archivists mentioned by Baßler, initiates with this novel the new German pop literature. Drawing on some theoretical perspectives on performativity and literature (Derrida, Culler), the present work brings together the categories of pop and performativity in order to look at what are here identified as performative aspects in Faserland, namely: 1. the iteration of various brand names and pop culture features, which acts as a “citation of norms” – the narrator does things with words (Austin) and in so doing he constructs a generational and social identity; 2. the use of specific linguistic expressions and textual strategies to narrate the vicissitudes of the protagonist, which makes them appear as events happening here and now in front of the reader-spectator’s eyes and whose effect is a narration with the immediacy of a dramatic monologue; 3. the implicit invitation to a multimedial and performative reception of the text, one which includes, as part of the act of reading, the search on the internet for the pictures and music mentioned in the novel.
On the degree distribution of Haros graphs
Creators: name: Calero-Sanz, Jorge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Haros graphs is a graph-theoretical representation of real numbers in the unit interval. The degree distribution of the Haros graphs provides information regarding the topological structure and the associated real number. This article provides a comprehensive demonstration of a conjecture concerning the analytical formulation of the degree distribution. Specifically, a theorem outlines the relationship between Haros graphs, the corresponding continued fraction of its associated real number, and the subsequent symbolic paths in the Farey binary Tree. Moreover, an expression continuous and piece-wise linear in subintervals defined by Farey fractions can be derived from an additional conclusion for the degree distribution of Haros graphs.
Taphonomy of bivalve skeletal remains as a means of detecting changes in oxygen depletion and recognizing ancient upwelling environments
Creators: name: Edelman-Furstenberg, Y.
Publisher: name: Geological Society of London
Year: 2022
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Taphonomic scoring data of state of preservation for analysed bivalve shells from Benguela upwelling samples