cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Μοντέλα transformer για ανάλυση συναισθημάτων
title: Transformer models for sentiment analysis
titleType: AlternativeTitle
Creators: name: Μουστάκας, Αναστάσιος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: NLP

description: Η μελέτη και η επεξεργασία της φυσικής γλώσσας (Natural Language Processing – NLP) είναι ένα πεδίο μελέτης που έχει σημειώσει μεγάλη εξέλιξη τα τελευταία χρόνια. Σε αυτή την περίοδο έχουν επινοηθεί, εφαρμοστεί και αξιολογηθεί διάφορες προσεγγίσεις και τεχνικές που έχουν προσφέρει στην πρόοδο του αντικειμένου συνολικά. Η σύγχρονη προσέγγιση στο αντικείμενο της επεξεργασίας φυσικής γλώσσας είναι η χρήση μηχανικής μάθησης και συγκεκριμένα μοντέλων της αρχιτεκτονικής transformer. Αυτή η αρχιτεκτονική βαθιάς μάθησης εξελίχθηκε κληρονομώντας διάφορα χαρακτηριστικά από προηγούμενες προσεγγίσεις και πλέον έχει την δυνατότητα να καλύψει ένα ευρύ φάσμα εργασιών (tasks) επεξεργασίας φυσικής γλώσσας. Μία από τις εργασίες για τις οποίες έχουν εκπαιδευτεί διάφορα τέτοια μοντέλα είναι η ανάλυση συναισθήματος του κειμένου[1] (sentiment analysis). Η ανάλυση συναισθήματος είναι ένα πεδίο το οποίο συνδέει την γλωσσολογία με την επιστήμη των υπολογιστών και έχει σαν τελικό στόχο τον καθορισμό του συναισθήματος στο κείμενο που αναλύθηκε. Τελικό αποτέλεσμα της ανάλυσης είναι η θετική ή αρνητική αξιολόγηση του συναισθήματος που εξάγεται από το κείμενο. Η ανάλυση συναισθήματος είναι ένα χρήσιμο εργαλείο που πλέον συναντάται συχνά στην εργαλειοθήκη των αναλυτών κοινωνικών δικτύων καθώς μπορεί με αυτοματοποιημένο τρόπο να εξάγει το συναίσθημα του κειμένου, αξιοποιώντας το νόημα, λέξεις από το κείμενο και το νόημα τους, την δομή του κειμένου και πολλά άλλα.
Spectral instability of characteristic boundary layer flows
Creators: name: Grenier, Emmanuel
name: Guo, Yan
name: Nguyen, Toan T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we construct growing modes of the linearized Navier-Stokes equations about generic stationary shear flows of the boundary layer type in a regime of sufficiently large Reynolds number: $R \to \infty$. Notably, the shear profiles are allowed to be linearly stable at the infinite Reynolds number limit, and so the instability presented is purely due to the presence of viscosity. The formal construction of approximate modes is well-documented in physics literature, going back to the work of Heisenberg, C.C. Lin, Tollmien, Drazin and Reid, but a rigorous construction requires delicate mathematical details, involving for instance a treatment of primitive Airy functions and singular solutions. Our analysis gives exact unstable eigenvalues and eigenfunctions, showing that the solution could grow slowly at the rate of $e^{t/\sqrt {R}}$. A new, operator-based approach is introduced, avoiding to deal with matching inner and outer asymptotic expansions, but instead involving a careful study of singularity in the critical layers by deriving pointwise bounds on the Green function of the corresponding Rayleigh and Airy operators.
description: 55 pages. arXiv admin note: substantial text overlap with arXiv:1402.1395
Impact de l'introduction de la LEO dans le processus d'orientation en fin de 8ème Harmos
Creators: name: Clément, Florence
name: Barros, Vania
Publisher: name: Unknown
Year: 0
Subjects: subject: orientation
subject: évaluation
subject: LEO
subject: conseil de classe
subject: notation
subject: parent

description: Avec l’entrée en vigueur de la LEO à la rentrée 2013, les décisions d'orientation pour le secondaire qui ont lieu en fin de 8ème année Harmos ne sont plus prises par le conseil de classe mais par le conseil de direction. De plus il n’y a plus de cas limites étant donné que l’échelle des points qui permet de répartir les élèves en deux voies, ne contient plus de zone de tolérance qui permettrait d’ouvrir une discussion autour de l’orientation. Les élèves sont donc orientés uniquement en fonction de leurs résultats scolaires ce qui n’était pas le cas sous l’ancienne loi scolaire. Il nous est donc apparu évident que de tels changements, bouleversant autant la procédure d’orientation elle-même que le rôle de chacun des ses acteurs, méritaient une étude approfondie. C’est dans cette perspective que s’inscrit cette étude. A premier abord, la LEO peut donc sembler apporter une certaine baisse de la subjectivité. Cependant, notre étude nous a permis de constater que l’orientation repose toujours sur des éléments subjectifs. En effet, les moyennes annuelles, proviennent d’évaluations, qui sont elles-mêmes subjectives. Elles dépendent du maître qui les a constituées, de la manière dont elles ont été corrigées et de divers autres éléments. Cette marge de manœuvre quant à l’évaluation peut permettre aux enseignants de «récupérer» une certaine part de pouvoir décisionnel. L’enjeu principal se situe donc à présent au niveau de l’évaluation ce qui à pour conséquences de modifier les pratiques de travail des enseignants.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
title: Μουσειακή μάθηση : ανάπτυξη ψηφιακού παιχνιδιού για το Μουσείο Ναυτικής Παράδοσης Περάματος
title: Museum learning : development of a digital game for the Maritime Tradition Museum of Perama
titleType: AlternativeTitle
Creators: name: Κράββαρη, Αχιλλεία
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Μουσειακή μάθηση
subject: Ιστοσελίδα
subject: Ψηφιακό παιχνίδι
subject: Μουσείο Ναυτικής Παράδοσης

description: Η μεταπτυχιακή αυτή διατριβή έχει ως κύριο στόχο τη ψηφιακή ανάδειξη του Μουσείου Ναυτικής Παράδοσης Περάματος που βρίσκεται στην περιοχή του Πειραιά. Για την επίτευξη του σκοπού αυτού σχεδιάστηκε και υλοποιήθηκε ιστοσελίδα στην οποία φιλοξενούνται πληροφορίες που αφορούν τη λειτουργία του μουσείου αλλά και τα εκθέματα που περιλαμβάνει αυτό. Επιπλέον, σχεδιάστηκε ψηφιακό παιχνίδι το οποίο δίνει την ευκαιρία στους επισκέπτες να βρεθούν ακόμη πιο κοντά με τα εκθέματα και να εμπλουτίσουν τις γνώσεις τους. Μέσω του παιχνιδιού οι χρήστες έχουν την ευκαιρία να αντιστοιχίσουν τα εργαλεία της αρχαίας ναυτιλίας με αυτά που χρησιμοποιούνται στα νεότερα χρόνια. Αξίζει ωστόσο να αναφερθεί πως η λειτουργία του ψηφιακού αυτού παιχνιδιού είναι συμπληρωματική της δια ζώσης επίσκεψης στο μουσείο. Το εργαλείο σχεδιάστηκε με γνώμονα τον μαθητή – επισκέπτη του μουσείου και τον εκπαιδευτικό. Από την αξιολόγηση της χρήσης αυτού διαπιστώθηκε πως τόσο οι μαθητές, όσο και οι εκπαιδευτικοί κατά την επίσκεψη στην οποία χρησιμοποιούσαν τα τεχνολογικά μέσα έδειξαν πολύ μεγαλύτερο ενδιαφέρον και συμμετείχαν πιο ενεργά, σε αντίθεση με μία επίσκεψη η οποία δεν περιείχε καμία χρήση ψηφιακών εργαλείων. Τα βήματα που ακολουθήθηκαν κατά την ερευνητική διαδικασία αλλά και το σχεδιασμό της ιστοσελίδας και του ψηφιακού παιχνιδιού περιγράφονται αναλυτικά σε κάθε κεφάλαιο της εργασίας, ενώ υπάρχει και συνοδευτικό οπτικό υλικό.
Continuous representation for shell models of turbulence
Creators: name: Mailybaev, Alexei A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 76F20

description: In this work we construct and analyze continuous hydrodynamic models in one space dimension, which are induced by shell models of turbulence. After Fourier transformation, such continuous models split into an infinite number of uncoupled subsystems, which are all identical to the same shell model. The two shell models, which allow such a construction, are considered: the dyadic (Desnyansky--Novikov) model with the intershell ratio $λ= 2^{3/2}$ and the Sabra model of turbulence with $λ= \sqrt{2+\sqrt{5}} \approx 2.058$. The continuous models allow understanding various properties of shell model solutions and provide their interpretation in physical space. We show that the asymptotic solutions of the dyadic model with Kolmogorov scaling correspond to the shocks (discontinuities) for the induced continuous solutions in physical space, and the finite-time blowup together with its viscous regularization follow the scenario similar to the Burgers equation. For the Sabra model, we provide the physical space representation for blowup solutions and intermittent turbulent dynamics.
description: 21 pages, 7 figures
title: Διαδικτυακό περιβάλλον κοινωνικής δραστηριότητας για την οργάνωση αθλητικών δραστηριοτήτων
title: A web-based social activity platform for organizing sports activities
titleType: AlternativeTitle
Creators: name: Καραχρήστος, Ευάγγελος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: C#
subject: Vue js
subject: PostgresSql
subject: Unit tests
subject: Jenkins

description: Σκοπός της παρούσας εργασίας είναι η ανάπτυξη διαδικτυακού περιβάλλοντος κοινωνικής δραστηριότητας για την οργάνωση αθλητικών δραστηριοτήτων μεταξύ αγνώστων. Πρόκειται για μια εφαρμογή στην οποία θα μπορεί ο χρήστης εύκολα να επιλέξει μια δραστηριότητα που θα ήθελε να κάνει(προκαθορισμένες δραστηριότητες) σε κάποια συγκεκριμένη χρονική στιγμή και κάποιος άλλος χρήστης να τον επιλέξει ώστε να καταλήξουν να κάνουν την ίδια δραστηριότητα την ίδια χρονική στιγμή μαζί. Το παραδοτέο αποτελείται από μια full-stack εφαρμογή, δηλαδή υλοποίηση front-end (FE), back-end (BE) και μια σχεσιακή βάση δεδομένων SQL. Ο συνδυασμός των τριών αυτών αντικειμένων επιτυγχάνει το ζητούμενο αποτέλεσμα, επιτρέποντας στον χρήστη να έχει γραφική απεικόνιση της εφαρμογής και επικοινωνία του BE με την σχεσιακή μας βάση δεδομένων, σε συνδυασμό πάντα την ασφάλεια των δεδομένων του χρήστη. Βασικό στοιχείο της εφαρμογής, εκτός της λογικής της που έχει αναπτυχθεί, είναι ο χρήστης να μπορεί να την αναπαράγει από οποιαδήποτε συσκευή διαθέτει, με την βέλτιστη απεικόνιση στην οθόνη του. Στην συνέχεια θα αναλύσουμε την εφαρμογή κατά το τεχνικό κομμάτι της και θα παρουσιαστεί η πλήρης ανάλυση της λειτουργίας της.
title: Five-to-Seven Carbon Glycols Severely Impair Bioenergetics and Metabolism of Aggressive Lung Cancer Cells
Creators: name: Stefanello, Sílvio Terra
name: Rigon Mizdal, Caren
name: Azzam, Ihab
name: Döhlinger, Lilly Rebecca
name: Oeckinghaus, Andrea
name: Shahin, Victor
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Lung cancer is the leading cause of cancer deaths. Nonsmall cell lung cancer (NSCLC) accounts for the vast majority of the histological subtypes and at advanced stage exhibits extremely low survival rate. Certain compounds, such as glycols, inhibit migration and decreased viability of the highly metastatic NSCLC cells A549_3R has been recently shown. The glycols-induced effects are associated with a parallel reduction of ATP production, detected in A549_3R spheroids embedded in 3D desmoplastic-like extracellular matrix, following overnight treatment. Herein, selected glycols are tested for their ability to acutely compromise bioenergetics, metabolism, and viability of A549_3R cells. Therefore, 1,5-pentanediol (1,5-PD), 1,6-hexanediol (1,6-HD), and 1,7-heptanediol (1,7-Hept) turn out to be the most effective. They interfere with key enzymes in glycolysis and elicit most or all of the following responses: acute collapse of the critical mitochondrial membrane potential, substantial reduction of ATP, pyruvate and L-lactate levels, and massive increase in reactive oxygen species production. Moreover, computational docking analysis reveals that the glycols bind to the substrate-binding residues of lactate dehydrogenase A, which catalyzes the interconversion of pyruvate and lactate and is upregulated in aggressive tumors. Hence, the effective glycols may be promising anticancer compounds, or lead substances, for localized and intratumoral applications.
description: Finanziert über die DEAL-Vereinbarung mit Wiley 2019-2022.
GAN-based generative modelling for dermatological applications -- comparative study
Creators: name: Limeros, Sandra Carrasco
name: Majchrowska, Sylwia
name: Zoubi, Mohamad Khir
name: Rosén, Anna
name: Suvilehto, Juulia
name: Sjöblom, Lisa
name: Kjellberg, Magnus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The lack of sufficiently large open medical databases is one of the biggest challenges in AI-powered healthcare. Synthetic data created using Generative Adversarial Networks (GANs) appears to be a good solution to mitigate the issues with privacy policies. The other type of cure is decentralized protocol across multiple medical institutions without exchanging local data samples. In this paper, we explored unconditional and conditional GANs in centralized and decentralized settings. The centralized setting imitates studies on large but highly unbalanced skin lesion dataset, while the decentralized one simulates a more realistic hospital scenario with three institutions. We evaluated models' performance in terms of fidelity, diversity, speed of training, and predictive ability of classifiers trained on the generated synthetic data. In addition we provided explainability through exploration of latent space and embeddings projection focused both on global and local explanations. Calculated distance between real images and their projections in the latent space proved the authenticity and generalization of trained GANs, which is one of the main concerns in this type of applications. The open source code for conducted studies is publicly available at \url{https://github.com/aidotse/stylegan2-ada-pytorch}.
description: 16 pages, 5 figures, 2 tables
Extended data for 'Access to longitudinal mental health data in Africa: lessons from a landscape analysis by the INSPIRE network datahub'
Creators: name: Momanyi, Reinpeter Ondeyo
name: Mugotitsa, Bylhah
Publisher: name: Zenodo
Year: 2024

description: Extended data for ‘Access to longitudinal mental health data in Africa: lessons from a landscape analysis by the INSPIRE network datahub’
Bulletin of the Northamptonshire Federation of Archaeological Societies
Creators: name: Brown
name: Hollowell
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 6, 1-21
description: Comprises a record of fifteen years of aerial photography, by Richard Hollowell, 1-2, a gazetteer of identified sites, 3-20, and fourteen pages of plates.
Cardiovascular Elements of Innate Alerting Responses: Role of the Superior Colliculus
Creators: name: Gregson, April
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Rapid behavioural and physiological responses to alerting stimuli are vital to animal survival, yet the neural mechanisms underlying these responses remain elusive. Of particular interest is the superior colliculus (SC), a prominent midbrain structure known to process visual information and drive innate behavioural responses to a variety of ecologically salient stimuli. This project aimed to improve understanding of the involvement of the SC in both behavioural and cardiovascular responses to overhead looming stimuli, which mimic a rapidly approaching object and evoke defensive reactions primarily mediated by SC circuits. First experiments utilised fifteen male Long-Evans rats exposed to a forward loom, reverse loom, or no loom (n=5 per group). Animals were euthanised and brain tissue from the SC underwent histological processing to examine the cell activation marker c-Fos. Behavioural categorisation of rats exposed to the forward loom differed significantly from those of rats exposed to the reverse loom, with almost all forward loom rats favouring an escape response over freezing. Within this group, the greatest c-Fos expression occurred within the medial, as opposed to lateral, SC, which is associated with the overhead visual field. Follow-up optogenetic experiments sought to assess the contribution made by medial SC neurons in mediating cardiovascular and behavioural response to overhead loom. A total of eight male Long-Evans rats were instrumented with optic fibres targeting inhibitory opsins to the rostral medial SC and telemetry pressure transmitters to record arterial BP. Animals were presented with four forward looms, the third of which was accompanied by delivery of optogenetic inhibition via implanted optic fibres. Following the overhead loom, some animals were found to rapidly increase systolic BP (sBP), accompanied by a gradual decrease in HR, although this was not seen in every case. Inhibition of the SC was expected to diminish both behavioural and physiological responses to overhead looms, but findings indicate that laser stimulation during the loom produced an increase in sBP compared to baseline and did not reduce freezing duration compared to a loom alone. Whilst optogenetic inhibition of the rostral medial SC did not act as expected, the results nevertheless demonstrate extensive involvement of the SC in both physiological and behavioural responses to the overhead loom.
Bulletin of the Northamptonshire Federation of Archaeological Societies
Creators: name: Brown
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 7, 1-69
description: Comprises a roundup of recent fieldwork in the county by period, 1-60, a bibliography of works on Roman sites, by David H Kennett, 61-64, and a bibliography of works on Migration and Early Medieval sites, by A E Brown, 65-69
title: La trajectoire scolaire de jeunes issus de l'immigration au secondaire I
title: les facteurs d'échec et de réussite : une enquête auprès d'élèves de 7VSO, 8 VSB et 9 VSG issus d'un établissement vaudois
titleType: Subtitle
Creators: name: Messaoud, Nadia
name: Olivier, Caroline
Publisher: name: Unknown
Year: 0
Subjects: subject: Interculturalité
subject: secondaire I
subject: migration
subject: réussite
subject: échec
subject: intégration

description: Ce travail s’insère dans la problématique de l’intégration et l’évolution des élèves issus de l’immigration au secondaire I. Il est le résultat d’une enquête menée auprès d’élèves de 7e VSO, 8e VSB et 9e VSB scolarisés dans un établissement secondaire à Lausanne. Le questionnaire que nous avons fait passer en classe, avec l’autorisation des parents et de la Direction, nous a permis de récolter les données de 57 élèves. Les résultats obtenus démontrent que les élèves issus de la migration éprouvent sont plus en proie à l’échec que les nationaux. En nous appuyant sur la littérature secondaire, nous avons alors cherché à comprendre pourquoi. Nous sommes parvenues à huit pistes de réflexions susceptibles d’expliquer ce constat. Parmi ces hypothèses, la plus marquante à nos yeux est celle concernant l’influence du cadre familial sur la scolarité. En étudiant le niveau de formation et le niveau socioculturel des parents, ainsi que l’orientation scolaire de la fratrie, nous avons pu constater l’importante convergence entre le niveau socioculturel des familles et la scolarité des enfants. Ce travail ne prétend aucunement représenter la problématique interculturelle au sein de l’enseignement au secondaire I. En effet, le modeste échantillon des données requiert l’emploi d’une certaine prudence quant à l’interprétation de nos hypothèses. Celui-ci correspond d’avantage à une modeste contribution dans ce domaine d’étude.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Caracterización de espuma de carbono de diferentes densidades en estructuras compuestas /
Creators: name: González León, Carlos Fabián
Publisher: name: Universidad Autónoma de Baja California, Mexicali.
Year: 2023
Subjects: subject: Materiales compuestos||Propiedades mecánicas||Tesis y disertaciones académicas||lemb||Compuestos poliméricos||Tesis y disertaciones académicas||lemb||Compuestos de carbono||Tesis y disertaciones académicas||lemb
subject: TA418.9.C6 G65 2022

description: Este trabajo de investigación presenta el análisis del comportamiento mecánico de materiales de espuma de carbono (FOAM 20 y FOAM 25), utilizado en procesos de manufactura en la industria aeroespacial, automotriz, entre otros, ya que su alta maquinabilidad, así como la posibilidad de variar su densidad a las necesidades requeridas, lo hacen un material con múltiples aplicaciones estructurales. Para lo anterior, se fabricaron probetas de prueba laminadas con estructura tipo sándwich; utilizando como núcleo la espuma de carbono. Las probetas se fabricaron con secciones rectangulares de acuerdo con la norma y una vez terminadas se llevaron hasta la falla por medio de la aplicación de cargas en una máquina universal de prueba. Se realizaron un total de veinte pruebas mecánicas entre tensión y compresión para los dos tipos de FOAM, que se diferencian entre sí, por tener diferente densidad. De los ensayos mecánicos realizados se obtuvieron valores promedio máximo de esfuerzos, los que se compararon con valores de corridas de simulación de un modelo bidimensional al cual se le aplicaron las cargas máximas promedio obtenidas en cada una de las pruebas y en cada tipo de material. El FOAM es un material poroso, por lo cual se comporta como un material anisotrópico. Como resultado en el modelado de los poros se incorporó una aproximación de las dimensiones de los mismos teniendo en consideración un patrón geométrico definido. Los valores de las cargas máximas registradas al momento del fallo de las probetas, tanto en las pruebas mecánicas de tensión y compresión, mostraron mayor resistencia para el FOAM 25 que para el FOAM 20, esto se concluye que fue debido a la diferencia de densidad de poros entre los materiales siendo el FOAM 25 un 20 % más denso que el FOAM 20 lo que representa una menor concentración de poros. El valor del esfuerzo mecánico promedio de la prueba a tensión contra el simulado para el FOAM 20, resultó ser del 67 % entre lo experimental y lo numérico, mientras que en la prueba de compresión fue del 63.9 %. Por otro lado, el valor del esfuerzo promedio en la prueba a tensión contra el simulado para el FOAM 25 fue del 59 % y la compresión fue de un 60 % de similitud. Es evidente que las propiedades de resistencia a la tensión y a la compresión del FOAM, se incrementa directamente con el aumento de la densidad del mismo.
Development and Performance of Kyoto's X-ray Astronomical SOI pixel (SOIPIX) sensor
Creators: name: Tsuru, Takeshi G.
name: Matsumura, Hideaki
name: Takeda, Ayaki
name: Tanaka, Takaaki
name: Nakashima, Shinya
name: Arai, Yasuo
name: Mori, Koji
name: Takenaka, Ryota
name: Nishioka, Yusuke
name: Kohmura, Takayoshi
name: Hatsui, Takaki
name: Kameshima, Takashi
name: Ozaki, Kyosuke
name: Kohmura, Yoshiki
name: Wagai, Tatsuya
name: Takei, Dai
name: Kawahito, Shoji
name: Kagawa, Keiichiro
name: Yasutomi, Keita
name: Kamehama, Hiroki
name: Shrestha, Sumeet
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have been developing monolithic active pixel sensors, known as Kyoto's X-ray SOIPIXs, based on the CMOS SOI (silicon-on-insulator) technology for next-generation X-ray astronomy satellites. The event trigger output function implemented in each pixel offers microsecond time resolution and enables reduction of the non-X-ray background that dominates the high X-ray energy band above 5--10 keV. A fully depleted SOI with a thick depletion layer and back illumination offers wide band coverage of 0.3--40 keV. Here, we report recent progress in the X-ray SOIPIX development. In this study, we achieved an energy resolution of 300~eV (FWHM) at 6~keV and a read-out noise of 33~e- (rms) in the frame readout mode, which allows us to clearly resolve Mn-K$α$ and K$β$. Moreover, we produced a fully depleted layer with a thickness of $500~{\rm μm}$. The event-driven readout mode has already been successfully demonstrated.
description: 7pages, 12figures, SPIE Astronomical Telescopes and Instrumentation 2014, Montreal, Quebec, Canada. appears as Proc. SPIE 9147, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
data.xlsx
Creators: name: Pepori, Alessia lucia
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 300704
subject: Forest health and pathology

description: Dutch elm disease (DED) is a destructive tracheomycosis caused by Ophiostoma novo-ulmi, an ascomycete that is devastating natural elm populations throughout Europe, North America and part of Asia. The fungus is mainly spread by elm bark beetles (Coleoptera: Curculionidae, Scolytinae) that complete their life cycle between healthy and diseased elms. It has recently been shown that certain fungi of the genus Geosmithia, associated with bark beetles, are involved in the DED patho-system. It has been observed that the two fungi not only share the same habitat in the host plant and during each developmental stage of the insect, but that there is a close association between them. By analyzing the presence and quantity of the two fungi on the bodies of elm beetles by a duplex qPCR assay, this work aimed to explore the dynamic of the relationship among the adults of S. multistriatus, O. novo-ulmi and Geosmithia spp. at sites characterized by different DED severity levels during the elm growing season. We observed that, regardless of the epidemiological conditions, both fungi are always present on adult flickering insects. The proportion of the two fungal populations varies between sampling sites, with Geosmithia spp. being predominant. This study confirms a strong relationship between the microorganisms, but it cannot give support to the hypothesis suggested in previous works regarding a putative hyperparasitic activity of Geosmithia spp., towards O. novo-ulmi. The hyperparasitism of Geosmithia towards O. novo-ulmi within this tri-trophic system should be investigated further for potential use as biological control agent.
Asymmetric Dark Matter Abundance Including Non-thermal production
Creators: name: Maqingshan
name: Iminniyaz, Hoernisa
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the relic abundance of asymmetric Dark Matter where the asymmetric Dark Matter is non--thermally produced from the decay of heavier particles in addition to the usual thermal production. We discuss the relic density of asymmetric Dark Matter including the decay of heavy particles in low temperature scenario. Here we still assume the universe is radiation dominated and there is asymmetry before the decay of heavy particles. We obtained increased abundances of asymmetric Dark Matter when there is additional contribution from the decay of heavier particles. Finally we find the constraints on the asymmetry factor and annihilation cross section using the Planck data.
description: 11 pages, 6 figures
Bulletin of the Northamptonshire Federation of Archaeological Societies
Creators: name: Brown
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 8, 1-18
description: Comprises a roundup of recent fieldwork in the county by period, 3-28, a report on excavation of a Bronze Age barrow ditch and Iron Age settlement at North Lodge Ecton (SP823651), by Dennis A Jackson, 31-38.
Selección de genotipos de trigo harinero con alto potencial de rendimiento en el Valle de Mexicali /
Creators: name: Rentería Morales, Karina Dayanne
Publisher: name: Universidad Autónoma de Baja California, Mexicali.
Year: 2023
Subjects: subject: Trigo||Mejoramiento||Mexicali, Baja California||Tesis y disertaciones académicas||lemb
subject: SB191.W5 R45 2022

description: El trigo harinero es usado para la elaboración de pan, galletas o pasteles, actualmente la producción de trigo harinero no alcanza para abastecer la demanda nacional. El objetivo del presente estudio fue evaluar los componentes de rendimiento de 25 líneas experimentales de trigo harinero y 5 testigos sembrados bajo las condiciones del Valle de Mexicali. El estudio se realizó en el ciclo de producción 2020/2021 bajo un diseño de látices con 3 repeticiones y 30 tratamientos, las variables analizadas fueron: cobertura inicial, altura de planta, madurez fisiológica, índice de cosecha, biomasa, granos por metro cuadrado, espigas por metro cuadrado, peso de mil granos, rendimiento de grano y peso específico. Los análisis estadísticos mostraron diferencias significativas entre los genotipos, identificándose materiales que superan en rendimiento a los testigos. En conclusión, el genotipo 28 fue seleccionado para futuras investigaciones por el potencial de rendimiento registrado.
Reducing Computational Complexity of Neural Networks in Optical Channel Equalization: From Concepts to Implementation
Creators: name: Freire, Pedro J.
name: Napoli, Antonio
name: Ron, Diego Arguello
name: Spinnler, Bernhard
name: Anderson, Michael
name: Schairer, Wolfgang
name: Bex, Thomas
name: Costa, Nelson
name: Turitsyn, Sergei K.
name: Prilepsky, Jaroslaw E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Computational Complexity (cs.CC)
subject: Emerging Technologies (cs.ET)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, a new methodology is proposed that allows for the low-complexity development of neural network (NN) based equalizers for the mitigation of impairments in high-speed coherent optical transmission systems. In this work, we provide a comprehensive description and comparison of various deep model compression approaches that have been applied to feed-forward and recurrent NN designs. Additionally, we evaluate the influence these strategies have on the performance of each NN equalizer. Quantization, weight clustering, pruning, and other cutting-edge strategies for model compression are taken into consideration. In this work, we propose and evaluate a Bayesian optimization-assisted compression, in which the hyperparameters of the compression are chosen to simultaneously reduce complexity and improve performance. In conclusion, the trade-off between the complexity of each compression approach and its performance is evaluated by utilizing both simulated and experimental data in order to complete the analysis. By utilizing optimal compression approaches, we show that it is possible to design an NN-based equalizer that is simpler to implement and has better performance than the conventional digital back-propagation (DBP) equalizer with only one step per span. This is accomplished by reducing the number of multipliers used in the NN equalizer after applying the weighted clustering and pruning algorithms. Furthermore, we demonstrate that an equalizer based on NN can also achieve superior performance while still maintaining the same degree of complexity as the full electronic chromatic dispersion compensation block. We conclude our analysis by highlighting open questions and existing challenges, as well as possible future research directions.
When UV and IR Collide: Inequivalent CFTs From Different Foliations Of AdS
Creators: name: Chowdhury, Borun D.
name: Parikh, Maulik K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the AdS/CFT correspondence, CFTs are identified by asymptotic boundary surfaces and the boundary conditions imposed on those surfaces. However, AdS can be foliated in various ways to give different boundaries. We show that the CFTs obtained using certain distinct foliations are different. This difference arises because the asymptotic region of a foliation overlaps with the deep interior region of another. In particular we focus on the CFTs defined on surfaces of large constant radius in global coordinates, Rindler-AdS coordinates, and Poincaré coordinates for AdS$_3$. We refer to these as global-CFT, Rindler-CFT and Poincaré-CFT respectively. We demonstrate that the correlators for these CFTs are different and argue that the bulk duals to these should agree up to very close to the respective horizons but then start differing. Since the BTZ black hole is obtained as a quotient of AdS$_3$, we discuss the implications of our results for bulk duals of periodically-identified Poincaré and Rindler-CFTs. Our results are consistent with some recent proposals suggesting a modification of the semi-classical BTZ geometry close to the horizons.
description: 29 pages, 11 figures
Information-theoretic Bell inequalities based on Tsallis entropy
Creators: name: Wajs, Marek
name: Kurzynski, Pawel
name: Kaszlikowski, Dagomir
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We numerically investigate entropic Bell inequalities for a pair of entangled qutrits using information-theoretic distances. We show that for this class of inequalities Tsallis entropy is more suitable than Shannon as it reveals non-classicality for a larger set of quantum states. Finally, we find that like probability based inequalities, entropic ones are maximally violated by the non-maximally entangled qutrit state.
description: 5 pages, 4 figures, comments welcome
Effet d'une révision à l'aide d'eLearning pour des élèves de secondaire I
Creators: name: Maran, Andrea
name: Bernard, Mathieu
Publisher: name: Unknown
Year: 0
Subjects: subject: eLearning
subject: révision
subject: Mathématiques
subject: TIC
subject: labomep
subject: FAD

description: Dans ce travail, nous nous intéressons à l’utilisation des TIC pour l’enseignement des mathématiques au secondaire I. Nous testons en particulier l’influence de l’utilisation d’un site internet spécifique, labomep.net, pour la révision d’un sujet de mathématique par les élèves. Nous présentons cet outil afin de promouvoir l’utilisation de l’eLearning dans les établissements du canton, dans la branche des mathématiques. Nous avons mis en évidence que pour qu’une révision soit efficace, elle devrait proposer aussi bien des exercices qu’une partie théorique, de plus il faut pouvoir fournir une réponse rapide aux questions, entre autres il faut que l’élève puisse accéder lui-même aux réponses des exercices. Cependant, nous avons constaté que la forme de la révision n’est pas influente. En effet, les deux types de révisions proposés, notamment individuels à l’ordinateur et en classe avec l’enseignant, semblent aussi efficace l’une que l’autre. Par ailleurs, nous nous sommes rendu compte que la plupart les élèves ne savent pas organiser leurs révisions qu’ils ont peu d’habitude de révision et ne sont pas très autonomes. Cela pourrait être amélioré par une révision faite à l’ordinateur sur un site internet tel que labomep.net.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Two new pit alignments and a hoard of currency bars from Northamptonshire
Creators: name: Jackson, Dennis A
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 9, 13-45
description: The pit alignment at Briar Hill Farm, Northampton, revealed during housing construction, proved to be at least 150m long. A double row of small pits or post holes had been succeeded by a row of regularly spaced large rectangular pits which had silted naturally; all finds were residual. The pit alignment at Park Lodge Quarry, Gretton was at least 114m long, terminating on a deep ditch; the 40 rectangular pits were refilled after primary silt had accumulated. A hoard of about 48 sword-shaped currency bars lay over a pit; other finds included a bronze ring-headed pin and an early Iron Age pot with fingernail impressions on the shoulder. Traces of Roman iron-working were seen. Appended are lists of excavated pit alignments and of Northamptonshire alignments seen on air photographs.
A connection between accretion state and $\textit{Fe K absorption}$ in an accreting neutron star: black hole-like soft state winds?
Creators: name: Ponti, G.
name: Muñoz-Darias, T.
name: Fender, R. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: High resolution X-ray spectra of accreting stellar mass Black Holes reveal the presence of accretion disc winds, traced by high ionisation Fe K lines. These winds appear to have an equatorial geometry and to be observed only during disc dominated states in which the radio jet is absent. Accreting neutron star systems also show equatorial high ionisation absorbers. However, the presence of any correlation with the accretion state has not been previously tested. We have studied EXO 0748-676, a transient neutron star system, for which we can reliably determine the accretion state, in order to investigate the Fe K absorption/accretion state/jet connection. Not one of twenty X-ray spectra obtained in the hard state revealed any significant Fe K absorption line. However, intense Fe ${\scriptsize{\rm XXV}}$ and Fe ${\scriptsize{\rm XXVI}}$ (as well as a rarely observed Fe ${\scriptsize{\rm XXIII}}$ line plus S ${\scriptsize{\rm XVI}}$; a blend of S ${\scriptsize{\rm XVI}}$ and Ar ${\scriptsize{\rm XVII}}$; Ca ${\scriptsize{\rm XX}}$ and Ca ${\scriptsize{\rm XIX}}$, possibly produced by the same high ionisation material) absorption lines ($EW_{\rm Fe~{XXIII-XXV}}=31\pm3$ eV, $EW_{\rm Fe~XXVI}=8\pm3$ eV) are clearly detected during the only soft state observation. This suggests that the connection between Fe K absorption and states (and anticorrelation between the presence of Fe K absorption and jets) is also valid for EXO 0748-676 and therefore it is not a unique property of black hole systems but a more general characteristic of accreting sources.
description: Accepted for publication in MNRAS Letters
Lean schemas for service offer formats in innovation ecosystems
Creators: name: Adamantios Koumpis
name: Elísio Costa
name: Cláudia Campos
name: Yiannis Geragotellis
name: Efi Mpakogianni
name: Paul Stefanut
name: Odysseas Spyroglou
name: Bolieraki, Eleni
name: Konstantinidis, Evdokimos
Publisher: name: Zenodo
Year: 2023
Subjects: innovation ecosystems
stakeholder analysis
service science
service offers templates
open innovation
smart health
digital health
e-health

description: In the document we come up with a first approach to identify synergies amongst Tasks 5.1 ‘Market and stakeholder needs analysis’ (Leader: UKOLN) and WP3 (Leader: KINNO) and all its encompassing Tasks.

Our aim is to design a lean scheme for the Service Offer, that its value will be demonstrated with a respective ‘storylines’ that will help build the regional ecosystems. To this we make a start in the document by providing insights of the ecosystems in Porto and Cologne. In the next version we shall include also information on the Thessaloniki ecosystem and elaborate for the other two ecosystems as well.
Bayesian inference of real-time dynamics from lattice QCD
Creators: name: Rothkopf, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The computation of dynamical properties of nuclear matter, ranging from parton distribution functions of nucleons and nuclei to transport properties in the quark-gluon plasma, constitutes a central goal of modern theoretical physics. This real-time physics often defies a perturbative treatment and the most successful strategy so far is to deploy lattice QCD simulations. These numerical computations are based on Monte-Carlo sampling and formulated in an artificial Euclidean time. Real-time physics is most conveniently formulated in terms of spectral functions, which are hidden in lattice QCD behind an ill-posed inverse problem. I will discuss the current methods state-of-the art in the extraction of spectral functions from lattice QCD simulations, based on Bayesian inference and emphasize the importance of prior domain knowledge, vital to regularizing the otherwise ill-posed extraction task. With Bayesian inference allowing us to make explicit the uncertainty in both observations and in our prior knowledge, a systematic estimation of the total uncertainties in the extracted spectral functions is nowadays possible. Two implementations of the Bayesian Reconstruction (BR) method for spectral function extraction, one for MAP point estimates and one based on an open access Monte-Carlo sampler are provided.I will briefly touch on the use of machine learning for spectral function reconstruction and discuss some new insight it has brought to the Bayesian community.
description: 33 pages, 4 figures, invited review for the Frontiers in Physics collection "Uncertainty Quantification in Nuclear Physics"
A Saxo-Norman kiln group from Northampton
Creators: name: Williams, John H
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 9, 46-56
description: A probable kiln group of cooking pots, wheel-turned and well-finished, in a hard sandy fabric, which is similar to that of unglazed Stamford ware, was discovered in Horsemarket, Northampton in 1971. On typological grounds and also on evidence from a small excavation nearby, the group would appear to be Saxo-Norman, 11th century.
An excavation on the site of the Augustinian Priory, Canons Ashby, Northamptonshire
Creators: name: Taylor, Steven J
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 9, 57-67
description: In 1970, excavations for constructing the foundations of an agricultural building exposed quantities of rubble and broken floor tiles, and part of the wall. Work was suspended and a brief excavation of the threatened area was undertaken. This area lay at the south-western corner of the cloister of the former priory.
Photonic Metamaterial Analogue of a Continuous Time Crystal
Creators: name: Liu, Tongjun
name: Ou, Jun-Yu
name: MacDonald, Kevin F.
name: Zheludev, Nikolay I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Time crystals are an eagerly sought phase of matter with broken time-translation symmetry. Quantum time crystals with discretely broken time-translation symmetry have been demonstrated in trapped ions, atoms and spins while continuously broken time-translation symmetry has been observed in an atomic condensate inside an optical cavity. Here we report that a classical metamaterial nanostructure, a two-dimensional array of plasmonic metamolecules supported on flexible nanowires, can be driven to a state possessing all of the key features of a continuous time crystal: continuous coherent illumination by light resonant with the metamolecules' plasmonic mode triggers a spontaneous phase transition to a superradiant-like state of transmissivity oscillations, resulting from many-body interactions among the metamolecules, characterized by long-range order in space and time. The phenomenon is of interest to the study of dynamic classical many-body states in the strongly correlated regime and applications in all-optical modulation, frequency conversion and timing.
description: 10 pages, 6 figures
title: Les enseignants et la prévention de la consommation d'alcool et de cannabis en milieu scolaire:
title: attitudes et émotions
titleType: Subtitle
Creators: name: Montino, Amélie
name: Sartoretti Guignard, Sara
Publisher: name: Unknown
Year: 0
Subjects: subject: prévention
subject: école
subject: substances
subject: enseignants
subject: consommation
subject: représentation

description: Construire des apprentissages, voilà la mission première de l’école. S’ajoute pourtant à cette tâche celle de mener des actions de préventionafin d’offrir aux jeunes un maximum de facteurs protecteurs. Implanté dans les écoles vaudoises depuis 2011, le programme cantonal de prévention compte sur les enseignants afin de repérer,prendre en compte et orienter les élèves consommateurs de produits psychotropes. Toutefois, peu d’études rendent compte des représentations des enseignants quant à la consommation d’alcool et de cannabis dans leur établissement. Il n’est pas aisé pour un enseignant dedéterminer avec certitude l’état d’ivresse/consommation de cannabis d’un élève, ceux-là n’étant que très peu voire pas formés à ce genre d’exercice. Cette responsabilité imposée par le programme cantonal de prévention s’ajoute encore à un agenda pédagogique déjà bien chargé de l’enseignant. Cependant, celui-ci serait, selon une étude menée par Van Hout, Foley, McCormack et Tardif (2012), davantage enclin à effectuer des démarches préventives en milieu scolaire s’il éprouve un degré élevé de satisfaction vis-à-vid de l'école Le climat d’établissement représente ici un facteurde protection non négligeable sur lequel les enseignants peuvent en partie agir. Confrontés à des situations de consommation de substances psychotropes par les élèves, les enseignants expriment diverses émotions. C’est avec plus d’intensité que les enseignants les ressentent et les manifestent en général avec moins de force. Cette régulation constitue elle aussi un facteur de protection enversles élèves sachant que certaines émotions peuvent avoir d’inquiétantes conséquences sur l’estime de soi ou la confiance des jeunes.Il semble que la consommation desubstances psychotropes en milieu scolaire soit toutefois marginale car les enseignants y ont été confrontés de manière rare selon leurs dires. Il est cependant important de se questionner sur ce résultat. Est-ce là la véritable raison, ou les enseignants ne sont-ils pas aptes, voire ferment les yeux sur ce genre de pratique par leurs élèves ?
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
The earthworks of Rockingham and its neighbourhood
Creators: name: Brown
name: , Taylor
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 9, 68-79
description: Interlocking historical and field evidence provide a picture of the parish in medieval and post-medieval times - its castle, warren, park, village, open fields, mills and a deserted medieval village. A little Roman and prehistoric evidence was also found.
Fluctuation Effects on the Transport Properties of Unitary Fermi Gases
Creators: name: Liu, Boyang
name: Zhai, Hui
name: Zhang, Shizhong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this letter, we investigate the fluctuation effects on the transport properties of unitary Fermi gases in the vicinity of the superfluid transition temperature $T_c$. Based on the time-dependent Ginzburg-Landau formalism of the BEC-BCS crossover, we investigate both the residual resistivity below $T_c$ induced by phase slips and the paraconductivity above $T_c$ due to pair fluctuations. These two effects have been well studied in the weak coupling BCS superconductor, and here we generalize them to the unitary regime of ultracold Fermi gases. We find that while the residual resistivity below $T_c$ increases as one approaches the unitary limit, consistent with recent experiments, the paraconductivity exhibits non-monotonic behavior. Our results can be verified with the recently developed transport apparatus using mesoscopic channels.
description: 8 pages and 4 figures including supplementary materials