cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Roman buildings at Ringstead, Northants
Creators: name: Jackson, Dennis A
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 15, 12-34
description: Excavation in advance of gravel quarrying revealed a 'builder's yard' replaced by a circular timber building and then by another circular building in stone with red-and-white tessellated floor, in use in 4th century, with a rectangular building adjacent to it. The finds include a column drum with imbricated leaf decoration (Jupiter column?); pottery (including some of Iron Age date), metalwork and coins.
Tolerance in the City of Peace: history and belonging in Harar (Gêy), Ethiopia
Creators: name: Randall, Lindsay
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: Harari religiosity
Harari kinship
Ethiopian political structures
Harari community
notions of belonging
Harari ethical system

description: This thesis examines how notions of history and heritage emerge and are contested within Harari discourses of identity and belonging and how these understandings blend with the physical city of Harar to underpin Harari religiosity and kinship. I show that what it is to be Harari is deeply rooted in a sense of emplacement within the ancestral city of Harar and the sacrality of the region as well as how this is both challenged and upheld within contemporary Ethiopian political structures and discourse. The chapters pay particular attention to how responses to violence emerge in nuanced and intimate registers of everyday life through pre-existing cultural and religious practices that transform into prophylactic community responses and political tools. I show that the Harari community’s response to ongoing pockets of chaos and intimidation against their history and religion is to expand their notions of belonging and acceptance and cultivate a capacity to hope for peace by continuing to return to and cultivate these cultural and religious practices that reinforce these principles. Taken together, the chapters argue that threats of violence and living under a shadow of anxiety in fact re-grounds a core Harari value: tolerance, which rather than being imposed as a value by external actors such as UNESCO, is in fact nascent within Harari ethical systems.
Spectral Slope Variation at Proton Scales from Fast to Slow Solar Wind
Creators: name: Bruno, R.
name: Trenchi, L.
name: Telloni, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We investigated the behavior of the spectral slope of interplanetary magnetic field fluctuations at proton scales for selected high resolution time intervals from WIND and MESSENGER spacecraft at $1$ AU and $0.56$ AU, respectively. The analysis was performed within the profile of high speed streams, moving from fast to slow wind regions. The spectral slope showed a large variability between $-3.75$ and $-1.75$ and a robust tendency for this parameter to be steeper within the trailing edge where the speed is higher and to be flatter within the subsequent slower wind, following a gradual transition between these two states. The value of the spectral index seems to depend firmly on the power associated to the fluctuations within the inertial range, higher the power steeper the slope. Our result support previous analyses suggesting that there must be some response of the dissipation mechanism to the level of the energy transfer rate along the inertial range.
description: 8 pages, 4 figures, accepted in the Astrophysical Journal Letters on 13 August 2014
Analyse des difficultés liées aux fractions rationnelles
Creators: name: Dégallier Rochat, Sarah
name: Fernandes, Telma
Publisher: name: Unknown
Year: 0
Subjects: subject: Didactique des mathématiques
subject: difficultés des élèves
subject: fractions rationnelles
subject: factorisation
subject: méga-concept de fraction de Kieren
subject: théorie de la variation

description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
title: Entreprise allemand
title: analyse d'un moyen d'enseignement pour les employés de commerce
titleType: Subtitle
Creators: name: Luz, Christine
Publisher: name: Unknown
Year: 0
Subjects: subject: didactique
subject: allemand
subject: langue étrangère
subject: écoles commerciales
subject: analyse
subject: moyen d'enseignement
subject: rapport au savoir
subject: métacognition

description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Understanding SAF-A's role in chromatin organisation throughout the cell cycle and in a rare neurodevelopmental disorder
Creators: name: Lazarova, Elena
Publisher: name: The University of Edinburgh
Year: 2024
Subjects: SAF-A
cytokinesis
SAF-A mutation
brain development
mitotic exit
Scaffold Attachment Factor A
faulty chromatin architecture
chromatin decompaction

description: Large-scale chromatin organisation during interphase and mitosis has been extensively studied; however, the mitotic exit remains poorly understood. This thesis aims to elucidate the involvement of the essential protein Scaffold Attachment Factor A (SAF-A; also called HNRNPU) in chromatin organisation during the mitotic exit and its impact on cellular phenotypes, particularly in the context of HNRNPU-related neurodevelopmental disorder. SAF-A regulates interphase chromatin structures in a transcription-dependent manner. The protein can decompact gene-active regions by interacting with chromatin-associated RNAs and binding ATP to form protein oligomers. SAF-A's eviction from mitotic chromosomes suggests it might have a precise recruitment to gene-active regions for establishing and maintaining the RNA mesh after mitosis. Additionally, perturbations in SAF-A function may result in faulty chromatin architecture at gene-active regions, contributing to cellular phenotypes observed in patients with HNRNPU-related neurodevelopmental disorder. To investigate whether transcriptional events during telophase or in early G1 recruit SAF-A, I used a live cell imaging system and co-localisation analysis. Imaging cells going through mitosis showed that SAF-A is recruited to chromatin during cytokinesis and inhibiting transcription at that time delayed its recruitment to early G1. This allowed the examination of SAF-A's association with RNAs during mitosis and mitotic exit using synchronized cells. In comparison with monomeric SAF-A, more oligomeric SAF-A was associated with new and old RNA during mitosis and early G1, showing that the protein regulates large-scale chromatin organisation as soon as it is recruited during mitosis. Next, I investigated the interaction between SAF-A and RNA and whether SAF-A depletion affects the RNA mesh in interphase. Depleting SAF-A with RNAi treatment resulted in a reduced RNA mesh density and connectivity. Finally, the effect of SAF-A mutations, from patients with the HNRNPU-related neurodevelopmental disorder, on chromatin organisation was explored. Human cell lines expressing mutated SAF-A proteins were generated, and their impact on chromatin decompaction was quantified using FISH with each mutant having a different phenotype. This thesis sheds light on the behavior of SAF-A at the mitotic exit and provides insights into its role in large-scale chromatin organisation. Furthermore, it investigates the cellular phenotypes associated with SAF-A patient mutations, contributing to our understanding of the underlying mechanisms and potential therapeutic targets for HNRNPU-related neurodevelopmental disorder.
Optimising the use of supportive care medicines in cancer treatment
Creators: name: Coutsouvelis, John
Publisher: name: Monash University
Year: 2022
Subjects: Cancer therapy (excl. chemotherapy and radiation therapy)

description: This thesis investigated the clinical effectiveness of innovative dosing and treatment protocols for selected supportive care medicines for cancer, through the review of published literature and evaluation of real-life outcome data. This thesis provided key information to the global literature on the effectiveness and safety of rasburicase, palifermin and defibrotide. It further highlighted the importance of implementing processes to develop and evaluate protocols guiding novel dosing regimens or treatment criteria to optimise the use of supportive care medicines in cancer. This optimisation allowed the clinically effective and safe management of cancer therapy complications for a larger patient population.
Quantum emulation of the transient dynamics in the multistate Landau-Zener model
Creators: name: Stehli, Alexander
name: Brehm, Jan David
name: Wolz, Tim
name: Schneider, Andre
name: Rotzinger, Hannes
name: Weides, Martin
name: Ustinov, Alexey V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulation is one of the most promising near term applications of quantum computing. Especially, systems with a large Hilbert space are hard to solve for classical computers and thus ideal targets for a simulation with quantum hardware. In this work, we study experimentally the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. The underlying Hamiltonian is emulated by superconducting quantum circuit, where a tunable transmon qubit is coupled to a bosonic mode ensemble comprising four lumped element microwave resonators. We investigate the model for different initial states: Due to our circuit design, we are not limited to merely exciting the qubit, but can also pump the harmonic modes via a dedicated drive line. Here, the nature of the transient dynamics depends on the average photon number in the excited resonator. The greater effective coupling strength between qubit and higher Fock states results in a quasi-adiabatic transition, where coherent quantum oscillations are suppressed without the introduction of additional loss channels. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
description: 5 pages, 3 figures
title: Les habiletés cognitives et motrices
title: quelles relations ?
titleType: Subtitle
Creators: name: Boo, Abele
Publisher: name: Unknown
Year: 0
Subjects: subject: Stade d’apprentissage moteur
subject: Taxonomie
subject: Habiletés cognitives
subject: Apprentissage

description: L’Enseignement de l’éducation physique a toujours été différent par rapport aux branches plus « théoriques » dans lesquelles les élèves restent assis en classe. Les travaux de Hotz (1985) ont fourni à l’enseignant des outils pour planifier des séquences d’enseignement : les trois stades d’apprentissage. Ces étapes ont la particularité d’avoir des éléments moteurs qui les différencient par rapport aux autres disciplines. Dans la géographie, l’histoire, le français ou la chimie, c’est plutôt le niveau cognitif de l’élève qui entre en jeu. Dans l’éducation physique par contre, c’est le niveau moteur. Y aQtQil une relation entre cognitif et moteur ? Oui. Sans son cerveau, l’élève ne pourrait pas envisager ses mouvements en salle de sport. Ce travail a pour objectif l’articulation d’une complémentarité entre les trois degrés d’apprentissage de Hotz (axés sur le moteur) et la taxonomie des habiletés cognitives de Anderson et Krathwohl (2001). Le but final consiste à faire une sorte de « mélange » des éléments des deux modèles, afin d’en cerner un seul qui puisse représenter un outil efficace pour l’enseignant d’éducation physique.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Linking the X-ray and infrared properties of star-forming galaxies at z<1.5
Creators: name: Symeonidis, M.
name: Georgakakis, A.
name: Page, M. J.
name: Bock, J.
name: Bonzini, M.
name: Buat, V.
name: Farrah, D.
name: Franceschini, A.
name: Ibar, E.
name: Lutz, D.
name: Magnelli, B.
name: Magdis, G.
name: Oliver, S. J.
name: Pannella, M.
name: Paolillo, M.
name: Rosario, D.
name: Roseboom, I. G.
name: Vaccari, M.
name: Villforth, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the most complete study to date of the X-ray emission from star-formation in high redshift (median z=0.7; z<1.5), IR-luminous (L_IR=10^10-10^13 L_sun) galaxies detected by Herschel's PACS and SPIRE instruments. For our purpose we take advantage of the deepest X-ray data to date, the Chandra deep fields (North and South). Sources which host AGN are removed from our analysis by means of multiple AGN indicators. We find an AGN fraction of 18+/-2 per cent amongst our sample and note that AGN entirely dominate at values of log[L_X/L_IR]>-3 in both hard and soft X-ray bands. From the sources which are star-formation dominated, only a small fraction are individually X-ray detected and for the bulk of the sample we calculate average X-ray luminosities through stacking. We find an average soft X-ray to infrared ratio of log[L_SX/L_IR]=-4.3 and an average hard X-ray to infrared ratio of log[L_HX/L_IR]=-3.8. We report that the X-ray/IR correlation is approximately linear through the entire range of L_IR and z probed and, although broadly consistent with the local (z<0.1) one, it does display some discrepancies. We suggest that these discrepancies are unlikely to be physical, i.e. due to an intrinsic change in the X-ray properties of star-forming galaxies with cosmic time, as there is no significant evidence for evolution of the L_X/L_IR ratio with redshift. Instead they are possibly due to selection effects and remaining AGN contamination. We also examine whether dust obscuration in the galaxy plays a role in attenuating X-rays from star-formation, by investigating changes in the L_X/L_IR ratio as a function of the average dust temperature. We conclude that X-rays do not suffer any measurable attenuation in the host galaxy.
description: 16 pages, 13 figures, accepted for publication in MNRAS
title: Do you speak science ?
title: de l'utilisation de l'anglais par les maîtres (-esses) de sciences naturelles des gymnases vaudois
titleType: Subtitle
Creators: name: Vinckenbosch, Nicolas
Publisher: name: Unknown
Year: 0
Subjects: subject: Maturité bilingue
subject: langue d’immersion
subject: anglais
subject: biologie
subject: sciences naturelles

description: La maîtrise des langues étrangères, et de l’anglais en particulier, représente aujourd’hui un enjeu important pour l’insertion professionnelle en Suisse. Aussi, l’anglais est souvent utilisé comme langue d’enseignement dans les hautes écoles helvétiques, tout particulièrement dans les cursus scientifiques. Pour renforcer les apprentissages en langues étrangères des élèves du secondaire II, plusieurs cantons suisses proposent des maturités bilingues où deux disciplines, au moins, sont enseignées dans une langue d’immersion. Le canton de Vaud dispense un programme de maturité bilingue français-allemand, mais les élèves vaudois n’ont pour le moment pas la possibilité de poursuivre un cursus en anglais. Dans le cadre de ce travail, nous avons étudié l’appréhension, par des gymnasiens en deuxième année (option biologie-chimie), d’un enseignement de biologie comportant une vidéo commentée en anglais. L’étude des réponses au questionnaire soumis à la classe montre que, dans leur grande majorité, les élèves ont conscience de l’importance que prendra l’anglais dans leurs formations et leurs vies professionnelles. Le document anglophone exploité dans cette séquence ne présentait pas de difficulté majeure de compréhension pour la classe. De manière générale, les élèves semblent consentir à l’utilisation ponctuelle de l’anglais durant un cours de biologie, même si certains d’entre eux n’ont pas semblé percevoir l’intérêt linguistique de cette pratique informelle. Finalement, nos résultats suggèrent qu’une séquence d’immersion, même très brève, peut favorablement modifier le rapport qu’entretient un élève avec une langue étrangère en produisant une expérience linguistique accessible en dehors du contexte habituel du cours de langue.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Characterisation of 5 anti-viral therapeutics in preclinical COVID-19 mouse models
Creators: name: Ali Khan, Asrar
Publisher: name: Zenodo
Year: 2022
Subjects: INFRAFRONTIER
COVID-19
Corona virus
Mouse models

description: This report describes the trans-national access (TNA) service for the characterisation of 5 anti-viral therapeutics in preclinical COVID-19 pipeline.
title: Anforderungen und technische Konzepte der Krisenkommunikation bei Stromausfall
Creators: name: Reuter, Christian
name: Ludwig, Thomas
Publisher: name: Gesellschaft für Informatik e.V
Year: 2023

description: Im Falle von Stromausfällen kommt der Kommunikation von Stromnetzbetreibern bzw. Behörden und Organisationen mit Sicherheitsaufgaben (BOS) mit der Bevölkerung eine besondere Bedeutung zu, da durch strombezogene Ausfälle vieler Kommunikationsinfrastrukturen die klassischen Kommunikationsmedien oftmals nicht in ihrer Gänze genutzt werden können. In diesem Beitrag werden technische Alternativkonzepte zur Unterstützung der Krisenkommunikation bei Ausfall der Stromversorgung untersucht. Hierzu werden zuerst die Wahrnehmung von Stromausfällen durch Bürger und deren Informationsbedarfe dargestellt und anschließend Kommunikationsinfrastrukturen sowie deren Verfügbarkeit in verschiedenen Stromausfallszenarien analysiert. Hierauf aufbauend wird das Konzept einer Smartphone-Applikation vorgestellt, welches die Zeit zwischen Eintreten des Stromausfalls und einer möglichen oder zeitweisen überlastung des Mobilfunknetzes adressiert und mit potentiellen Nutzern evaluiert wurde. Ziel war es, Erkenntnisse über mögliche mobilfunkbasierte Unterstützungskonzepte zu gewinnen und Design-Vorschläge zur Umsetzung solcher Konzepte zu geben.
Magnetic interactions and possible structural distortion in kagome FeGe from first-principles study and symmetry analysis
Creators: name: Zhou, Hanjing
name: Yan, Songsong
name: Fan, Dongze
name: Wang, Di
name: Wan, Xiangang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Based on density functional theory and symmetry analysis, we present a comprehensive investigation of electronic structure, magnetic properties and possible structural distortion of magnetic kagome metal FeGe. We estimate the magnetic parameters including Heisenberg and Dzyaloshinskii-Moriya (DM) interactions, and find that the ferromagnetic nearest-neighbor $J_{1}$ dominates over the others, while the magnetic interactions between nearest kagome layers favors antiferromagnetic. The Néel temperature $T_{N}$ and Curie-Weiss temperature $θ_{CW}$ are successfully reproduced, and the calculated magnetic anisotropy energy is also in consistent with the experiment. However, these reasonable Heisenberg interactions and magnetic anisotropy cannot explain the double cone magnetic transition, and the DM interactions, which even exist in the centrosymmetric materials, can result in this small magnetic cone angle. Unfortunately, due to the crystal symmetry of the high-temperature structure, the net contribution of DM interactions to double cone magnetic structure is absent. Based on the experimental $2\times 2\times 2$ supercell, we thus explore the subgroups of the parent phase. Group theoretical analysis reveals that there are 68 different distortions, and only four of them (space group $P622$ or $P6_{3}22$) without inversion and mirror symmetry thus can explain the low-temperature magnetic structure. Furthermore, we suggest that these four proposed CDW phases can be identified by using Raman spectroscopy. Since DM interactions are very sensitive to small atomic displacements and symmetry restrictions, we believe that symmetry analysis is an effective method to reveal the interplay of delicate structural distortions and complex magnetic configurations.
Theoretische Untersuchung zum Misch-Netzwerkbildner-Effekt zur Optimierung von Glaselektrolyten
Creators: name: Alhamad, Mohamad
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Glaselektrolyten
subject: 530 - Physik

description: Bei Mischung von Netzwerkbildnern in ionenleitenden Gläsern wird die Leitfähigkeit beweglicher Ionen modifiziert und kann insbesondere gesteigert werden. Die beweglichen Ionen in Gläsern sind zumeist Alkaliionen, in der praktischen Anwendung insbesondere Lithium- oder Natriumionen. Bei Erhöhung ionischer Leitfähigkeiten lässt sich der Misch-Netzwerkbildner-Effekt zur Optimierung von Batterien und zur Verbesserung von Glaselektrolyten ausnutzen, die in chemischen Sensoren, intelligenten Fensterscheiben und Superkondensatoren Verwendung ﬁnden. Zur Materialoptimierung ist von entscheidender Bedeutung, ein besseres theoretisches Verständnis des Effektes zu gewinnen. In dieser Arbeit wird davon ausgegangen, dass die Verteilung der Anionenladung (Gegenladung) durch die Bildung unterschiedlich chemischer Netzwerkbildner-Einheiten in Gläsern geändert wird. Diese Netzwerkbildner-Einheiten lassen sich experimentell aus Magic-Angle-Spinning-, NMR- und Raman-Spektren bestimmen. Für die theoretische Modellierung der gemessenen Konzentrationen der Netzwerkbildner-Einheiten werden thermodynamische Modelle entwickelt. Aufbauend auf dieser Modellierung wird der Ionentransport untersucht. Um die Modifikation der Energielandschaft, die mit der Änderung der Konzentrationen der Netzwerkbildner-Einheiten verbunden ist, für den langreichweitigen Ionentransport zu beschreiben, wird angenommen, dass nicht-brückende Sauerstoﬀatome lokalisierte Coulomb-Fallen für die beweglichen Ionen bilden. Auf diese Weise wird die Energielandschaft für den langreichweitigen Ionentransport durch die Änderung der Konzentrationen der Netzwerkbildner-Einheiten modiﬁziert. Unter Zugrundelegung dieses Konzepts werden mit Monte-Carlo-Simulationen des thermisch aktivierten Transports der mobilen Ionen sowie perkolationstheoretischen Methoden ionische Leitfähigkeiten und ihre Aktivierungsenergien bestimmt. Vergleiche mit Experimenten für verschiedene ionenleitende Gläser liefern eine gute Übereinstimmung mit den gemessenen Änderungen in Abhängigkeit von Mischungsverhältnis von Netzwerkbildnern.
In-situ microwave characterization of ferromagnetic microwires-filled polymer composites: a review
Creators: name: Qin, F. X.
name: Luo, Y.
name: Tang, J.
name: Peng, H. X.
name: Brosseau, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This review describes the emerging research area and relevant physics of polymer-based composites enabled by amorphous ferromagnetic microwires. Fruitful results ranging from their tunable magnetic field and mechanical stress properties and influences of direct current on their microwave behavior are displayed in addition to the brief analysis on the underlying physics. The multifunctionalities exhibited strongly imply a variety of potential applications such as structural health monitoring and high-performance sensors. This article underlines that the future challenge mainly lies in proper microwire tailoring in expectation of a better microwave performance of microwire composites
description: 22 pages, 8 figures, for Moscow International Symposium on Magnetism MISM-2014 (MISM 2014), Moscow
Archaeology at an ironstone quarry in the Harringworth-Wakerley area, 1968-79
Creators: name: Jackson, Dennis A
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 16, 14-33
description: Archaeological work by the author during ironstone quarrying in Harringworth and Wakerley parishes was carried out over 11 years from 1968-79. Neolithic and Bronze Age activity is attested by pits of early Neolithic date and pits containing Beaker pottery, near the top of the valley slope, and by Bronze Age features in the area of the Anglo-Saxon cemetery, which is reported separately. There was abundant evidence of Iron Age settlement. An extensive settlement in Wakerley parish has also been published separately, while this report describes another settlement area partially exposed at the south end of the quarry. A Roman settlement included a rectangular stone range, with remnants of a pitched-stone floor and painted wall plaster in the robber trenches. To the west there was another building and at least one iron smelting furnace.
title: Διαχείριση δεδομένων βιβλιοθηκών στην πλατφόρμα WEKA: υποσυστήματα Explorer & Knowledge Flow
title: Library data management on the WEKA platform: Explorer & Knowledge Flow subsystems
titleType: AlternativeTitle
Creators: name: Σερέτη, Χρυσάνθη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2020
Subjects: Weka
Explorer
Knowledge Flow
Classification
Ταξινόμηση-Κατηγοριοποίηση
Επιλογή χαρακτηριστικών
Feature selection

description: Στην παρούσα εργασία θα παρουσιαστούν και θα συγκριθούν τα υποσυστήματα Explorer και Knowledge Flow του περιβάλλοντος εξόρυξης δεδομένων WEKA. Η σύγκριση θα γίνει σε θεωρητικό πλαίσιο, αλλά και σε πειραματικό επίπεδο με σκοπό την εύρεση ενός μοντέλου πρόβλεψης για τον τύπο και την ηλικία των χρηστών της Δημόσιας Βιβλιοθήκης του Σαν Φρανσίσκο σε σχέση με την συμπεριφορά τους στην κίνηση υλικού. Η τεχνική που χρησιμοποιήθηκε για την δημιουργία πρόβλεψης είναι η τεχνική της ταξινόμησης-κατηγοριοποίησης (classification) με βάση τους αλγορίθμους K-NN, SVM, Random Forest, Decision Tree, και Naive Bayes σε ένα σύνολο δεδομένων προερχόμενο από την ίδια την βιβλιοθήκη. Σύμφωνα με την θεωρητική προσέγγιση, τα δύο περιβάλλοντα παρέχουν την ίδια συλλογή αλγορίθμων μηχανικής μάθησης καθώς και εργαλεία προ-επεξεργασίας δεδομένων. Στις πειραματικές δοκιμές επίσης, απέδωσαν τα ίδια αποτελέσματα. Η μέθοδος επικύρωσης που χρησιμοποιήθηκε είναι αυτή της διασταυρωμένης επικύρωσης με 10 folds. Το περιβάλλον του Explorer φαίνεται ότι είναι μία διεπαφή χρήστη στην οποία απαιτείται αρκετός χρόνος εξοικείωσης αλλά προσφέρει μεγαλύτερη ευελιξία και δυνατότητες. Το περιβάλλον του Knowledge Flow είναι γραφικό και λειτουργεί με κόμβους, διασυνδέσεις και drag and drop μενού. Οι μέθοδοι που ανταποκρίθηκαν καλύτερα είναι οι Random Forest, Random Tree και K-nn όπου τα αποτελέσματα τους αν και ήταν αποδεκτά αφού το f-measure έφτασε το 61.7%, δεν θεωρείται ενθαρρυντική απόδοση. Τελικά, η αρχική ερευνητική υπόθεση καταλήγει στο συμπέρασμα ότι δεν υπάρχει έντονη συσχέτιση της ηλικίας με την συμπεριφορά δανεισμού των χρηστών, και εξαρτάται από άλλους παράγοντες.
L'enseignement de type CLIL aide-t-il à mieux comprendre l'aspect culturel d'un texte littéraire ?:
Creators: name: Borböen, Lydie
name: Tavakoli, Shirin
Publisher: name: Unknown
Year: 0
Subjects: subject: CLIL
subject: culture
subject: texte littéraire
subject: motivation
subject: maîtrise de la langue
subject: Inde

description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
U-duality and $α'$ corrections in three dimensions
Creators: name: Eloy, Camille
name: Hohm, Olaf
name: Samtleben, Henning
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the target space theory of bosonic and heterotic string theory to first order in $α'$ compactified to three dimensions, using a formulation that is manifestly T-duality invariant under ${\rm O}(d,d,\mathbb{R})$ with $d=23$ and $d=7$, respectively. While the two-derivative supergravity exhibits a symmetry enhancement to the U-duality group ${\rm O}(d+1,d+1)$, the continuous group is known to be broken to ${\rm O}(d,d,\mathbb{R})$ by the first $α'$ correction. We revisit this observation by computing the full effective actions in three dimensions to first order in $α'$ by dualizing the vector gauge fields. We give a formally ${\rm O}(d+1,d+1)$ invariant formulation by invoking a vector compensator, and we observe a chiral pattern that allows one to reconstruct the bosonic action from the heterotic action. Furthermore, we obtain a particular massive deformation by integrating out the external $B$ field. This induces a novel Chern-Simons term based on composite connections that, remarkably, is ${\rm O}(d+1,d+1)$ invariant to leading order in the deformation parameter.
description: 35 pages
Hydrodynamics of Embedded Planets' First Atmospheres. II. A Rapid Recycling of Atmospheric Gas
Creators: name: Ormel, Chris W.
name: Shi, Ji-Ming
name: Kuiper, Rolf
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Following Paper I we investigate the properties of atmospheres that form around small protoplanets embedded in a protoplanetary disc by conducting hydrodynamical simulations. These are now extended to three dimensions, employing a spherical grid centred on the planet. Compression of gas is shown to reduce rotational motions. Contrasting the 2D case, no clear boundary demarcates bound atmospheric gas from disc material; instead, we find an open system where gas enters the Bondi sphere at high latitudes and leaves through the midplane regions, or, vice versa, when the disc gas rotates sub-Keplerian. The simulations do not converge to a time-independent solution; instead, the atmosphere is characterized by a time-varying velocity field. Of particular interest is the timescale to replenish the atmosphere by nebular gas, $t_\mathrm{replenish}$. It is shown that the replenishment rate, $M_\mathrm{atm}/t_\mathrm{replenish}$, can be understood in terms of a modified Bondi accretion rate, $\sim$$R_\mathrm{Bondi}^2ρ_\mathrm{gas}v_\mathrm{Bondi}$, where $v_\mathrm{Bondi}$ is set by the Keplerian shear or the magnitude of the sub-Keplerian motion of the gas, whichever is larger. In the inner disk, the atmosphere of embedded protoplanets replenishes on a timescale that is shorter than the Kelvin-Helmholtz contraction (or cooling) timescale. As a result, atmospheric gas can no longer contract and the growth of these atmospheres terminates. Future work must confirm whether these findings continue to apply when the (thermodynamical) idealizations employed in this study are relaxed. But if shown to be broadly applicable, replenishment of atmospheric gas provides a natural explanation for the preponderance of gas-rich but rock-dominant planets like super-Earths and mini-Neptunes.
description: 15 pages, 13 figures, submitted to MNRAS. Comments welcome
Excavations in field OS 124, Maxey, Cambridgeshire
Creators: name: Simpson
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 16, 34-64
description: At the beginning of 1965 the Hoveringham Gravel Co began to strip topsoil from the northern half of a field at Maxey, Cambridgeshire in preparation for gravel quarrying. As air photographs showed a number of potentially interesting monuments in the area, the writer, on behalf of the Welland Valley Research Committee sought permission from the company to undertake selective excavation. This was readily granted and the subsequent excavations were carried out intermittently between February 1965 and July 1966. In the fields to the north of the quarry are a cursus and two small pits circles of Neolithic date as well as a Bronze Age monument and ring ditches and also Iron Age settlement. In the field itself there were a number of ring ditch monuments of various diameters as well as rectilinear ditch systems related to Iron Age settlement and later boundaries. At Site E there was ring ditch, up to 9.2m diameter, with an entrance facing north with an outer concentric semi-circle of ditch segments at 19.5m diameter. A smaller single ring, 6.4m diameter, lay to the west, with an entrance facing north-east. Sherds of Mildenhall and Grooved ware was recovered, along with a some worked flint a complete cattle, and a deer rib bone and part of an antler with incised line decoration. At Site J there was a scatter of pits, four of which were excavated with three producing pottery and other finds indicating a date in the late Bronze Age. At Sites H & K, a large ring ditch nearly 50m in diameter appeared to pre-date a late Iron Age/early Roman settlement, but only a short length of the ditch was excavated. The settlement was partially excavated producing a good pottery assemblage and environmental evidence.
Charged massive particle at rest in the field of a Reissner-Nordström black hole. II. Analysis of the field lines and the electric Meissner effect
Creators: name: Bini, Donato
name: Geralico, Andrea
name: Ruffini, Remo
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The properties of the electric field of a two-body system consisting of a Reissner-Nordström black hole and a charged massive particle at rest have recently been analyzed in the framework of first order perturbation theory following the standard approach of Regge, Wheeler and Zerilli. In the present paper we complete this analysis by numerically constructing and discussing the lines of force of the "effective" electric field of the sole particle with the subtraction of the dominant contribution of the black hole. We also give the total field due to the black hole and the particle. As the black hole becomes extreme an effect analogous to the Meissner effect arises for the electric field, with the "effective field" lines of the point charge being expelled by the outer horizon of the black hole. This effect existing at the level of test field approximation, i.e. by neglecting the backreaction on the background metric and electromagnetic field due to the particle's mass and charge, is here found also at the complete perturbative level. We point out analogies with similar considerations for magnetic fields by Bi{\v c}ák and Dvo{\v r}ák. We also explicitly show that the linearization of the recently obtained Belinski-Alekseev exact solution coincides with our solution in the Regge-Wheeler gauge. Our solution thus represents a "bridge" between the test field solution, which neglects all the feedback terms, and the exact two-body solution, which takes into account all the non-linearity of the interaction.
description: 14 pages, 4 figures; published version
Forming intracluster gas in a galaxy protocluster at a redshift of 2.16
Creators: name: Di Mascolo, Luca
name: Saro, Alexandro
name: Mroczkowski, Tony
name: Borgani, Stefano
name: Churazov, Eugene
name: Rasia, Elena
name: Tozzi, Paolo
name: Dannerbauer, Helmut
name: Basu, Kaustuv
name: Carilli, Christopher L.
name: Ginolfi, Michele
name: Miley, George
name: Nonino, Mario
name: Pentericci, Maurilio Pannella Laura
name: Rizzo, Francesca
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy clusters are the most massive gravitationally bound structures in the Universe, comprising thousands of galaxies and pervaded by a diffuse, hot ``intracluster medium'' (ICM) that dominates the baryonic content of these systems. The formation and evolution of the ICM across cosmic time is thought to be driven by the continuous accretion of matter from the large-scale filamentary surroundings and dramatic merger events with other clusters or groups. Until now, however, direct observations of the intracluster gas have been limited only to mature clusters in the latter three-quarters of the history of the Universe, and we have been lacking a direct view of the hot, thermalized cluster atmosphere at the epoch when the first massive clusters formed. Here we report the detection (about $6σ$) of the thermal Sunyaev-Zeldovich (SZ) effect in the direction of a protocluster. In fact, the SZ signal reveals the ICM thermal energy in a way that is insensitive to cosmological dimming, making it ideal for tracing the thermal history of cosmic structures. This result indicates the presence of a nascent ICM within the Spiderweb protocluster at redshift $z=2.156$, around 10 billion years ago. The amplitude and morphology of the detected signal show that the SZ effect from the protocluster is lower than expected from dynamical considerations and comparable with that of lower-redshift group-scale systems, consistent with expectations for a dynamically active progenitor of a local galaxy cluster.
description: 18 pages (main text + methods), 10 figures, 2 tables; published online in Nature on March 29th, 2023
title: Faire découvrir la réflexion juridique à des élèves d'école professionnelle
title: le casus par la méthode Jigsaw
titleType: Subtitle
Creators: name: Wagner Laurent, Mandy
Publisher: name: Unknown
Year: 0
Subjects: subject: Apprentissage
subject: Culture générale
subject: Droit
subject: Interdépendance positive
subject: Pairs
subject: Autonomie

description: Le plan d’études cadre pour l’enseignement de la culture générale en formation professionnelle pose des objectifs ambitieux pour l’enseignement de l’aspect « droit ». Développer la réflexion des élèves à partir d’informations juridiques est un de ces objectifs. Ainsi, les exercices de résolutions de cas juridiques amènent les personnes en formation à identifier, à recueillir et à interpréter les informations juridiques pertinentes dans des situations conflictuelles, afin de développer leur argumentation pour apprécier le cas et le solutionner. Traiter cet exercice par le biais d’une méthode de travail en groupe permet d’apporter une plus-value à cette réflexion, et habituer les élèves à apprendre entre pairs. L’apprentissage coopératif prend tout son sens dans le cadre de cet objectif, et utiliser la méthode « Jigsaw », ou « classes puzzle », permet de prendre en compte l’hétérogénéité de certaines classes. Ce travail se propose, après avoir rendu compte des éléments théoriques essentiels de la méthode Jigsaw et de la résolution de cas en droit d’une manière générale, d’exposer le déroulement d’une séquence d’enseignement construite autour d’un travail en groupes ayant pour thème la résolution de cas juridiques en droit de la famille. La méthode Jigsaw a beaucoup de potentiel, même si d’autres voies existent, et quelques pistes d’améliorations dans son exploitation sont mentionnées en guise de conclusion.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Exclusive Queueing Processes and their Application to Traffic Systems
Creators: name: Arita, C.
name: Schadschneider, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The dynamics of pedestrian crowds has been studied intensively in recent years, both theoretically and empirically. However, in many situations pedestrian crowds are rather static, e.g. due to jamming near bottlenecks or queueing at ticket counters or supermarket checkouts. Classically such queues are often described by the M/M/1 queue that neglects the internal structure (density profile) of the queue by focussing on the system length as the only dynamical variable. This is different in the Exclusive Queueing Process (EQP) in which the queue is considered on a microscopic level. It is equivalent to a Totally Asymmetric Exclusion Process (TASEP) of varying length. The EQP has a surprisingly rich phase diagram with respect to the arrival probability alpha and the service probability beta. The behavior on the phase transition line is much more complex than for the TASEP with a fixed system length. It is nonuniversal and depends strongly on the update procedure used. In this article, we review the main properties of the EQP. We also mention extensions and applications of the EQP and some related models.
description: 20 pages, 11 figures, to appear in Mathematical Models and Methods in Applied Sciences, Special Issue "Traffic, Crowds and Swarms 2015"; contains a review of results from arXiv:1012.4525, arXiv:1109.0425, arXiv:1210.1482, arXiv:1308.2417, arXiv:1409.0329 and some new results
Supercurrent-induced Anomalous Thermal Hall Effect as a New Probe to Superconducting Gap Anisotropy
Creators: name: Hu, Xiaodong
name: Han, Jung Hoon
name: Ran, Ying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two-dimensional superconductors have been realized in various atomically thin films such as the twisted bilayer graphene, some of which are anticipated to involve unconventional pairing mechanism. Due to their low dimensionality, experimental probes of the exact nature of superconductivity in these systems have been limited. We propose, by applying a \emph{vertical} supercurrent to a bilayer superconductor where the mirror symmetry is naturally broken by the twisting, there will be anomalous thermal Hall effect induced by the supercurrent that can serve as a sharp probe for the \emph{in-plane} anisotropy of the superconducting gap function. This effect occurs in the \emph{absence} of an external magnetic field and spontaneous breaking of the time-reversal symmetry in the ground state. We derive explicit formulas for the induced thermal Hall conductivity and show them to be significant in the examples of twisted cuprates and twisted FeSe where monolayer superconductivity have already been observed. Though technical challenges still exist, we propose this to be a generic probe of the gap anisotropy in a twisted bilayer superconductor.
Great Doddington: an Iron Age enclosure
Creators: name: Windell, Dave
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 16, 65-72
description: In advance of the construction of the A45 New Road, part of a D-shaped Iron Age enclosure was subject to rescue excavation to establish its form and date. An earlier phase of use is dated to the 3rd or 2nd centuries BC, with the construction of the enclosure dated to the 2nd or 1st century BC. The enclosure ditch was V-shaped, 4m wide and 2.7m deep, and a 5m-wide berm clear of features suggested the presence of an internal bank. A line of three small roundhouses, defined by arcs of gullies 8m in diameter, lay close to the ban, and towards the centre of the enclosure, one of two possible large roundhouses, defined by three concentric ring gullies, with a minimum diameter of 14m, was partially exposed.
Engineered ZnO‐TiO2 Nanospheres for High Performing Membrane Assimilated Photocatalytic Water Remediation and Energy Harvesting
Creators: Laishram, Devika
Publisher: name: University of Alberta Library
Year: 2022

A highly efficient, reusable ZnO-TiO2 heterojunction nanoparticle-based photocatalyst has been successfully demonstrated as a simple and inexpensive way for water remediation. The highly porous membrane integrated with ZnO-TiO2 nanospheres showed significant improvement for removal of specific industrial wastewater contaminates like methyl orange and Cr(VI). Additionally, the ZnO-TiO2 heterojunction nanospheres as DSSC photoanode showed a substantial photo conversion efficiency with graphene counter electrode.
Quantum light from lossy semiconductor Rydberg excitons
Creators: name: Walther, Valentin
name: Sørensen, Anders S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The emergence of photonic quantum correlations is typically associated with emitters strongly coupled to a photonic mode. Here, we show that semiconductor Rydberg excitons, which are only weakly coupled to a free-space light mode can produce strongly antibunched fields, i.e. quantum light. This effect is fueled by micron-scale excitation blockade between Rydberg excitons inducing pair-wise polariton scattering events. Photons incident on an exciton resonance are scatted into blue- and red-detuned pairs, which enjoy relative protection from absorption and thus dominate the transmitted light. We demonstrate that this effect persists in the presence of additional phonon coupling, strong non-radiative decay and across a wide range of experimental parameters. Our results pave the way for the observation of quantum statistics from weakly coupled semiconductor excitons.
description: 11 pages, 6 figures
title: Realising increased photosynthetic efficiency to increase strawberry yields
Creators: name: Doddrell, Nicholas Harry
Publisher: name: University of Reading
Year: 2023

description: As the global population continues to rise, new solutions are required to increase productivity of food systems. One such approach is to increase the efficiency of crop photosynthesis by genetic manipulation of rate-limiting enzymes, a method proven to be successful in a range of model and cereal crop species. This thesis aims to apply this to cultivated strawberry (Fragaria x ananassa Duch.) by first exploring species-specific factors limiting photosynthetic efficiency and then generating transgenic lines with enhanced photosynthesis. Variation of photosynthesis across a polytunnel was recorded to better understand photosynthesis in strawberry. It was found that availability of photosynthetically active radiation and stomatal behaviour are key factors in determining photosynthetic carbon assimilation and that this determines patterns in fruit yield seen across the tunnel. Plasmids were constructed containing coding sequences for sedoheptulose-1,7- bisphosphatase (SBPase), a Calvin-Benson-Bassham Cycle enzyme, and adenosine diphosphate glucose pyrophosphorylase (AGPase), a starch synthesis enzyme. Both genes have formerly been implicated in limiting photosynthetic rate, making interesting targets for study. Transgenic plants expressing both genes in concert and AGPase alone were regenerated from transformed callus tissue on hygromycin selection, though this rate of regeneration was significantly delayed by the selectable marker. The photosynthetic efficiency of transgenic plants was then tested via chlorophyll fluorescence imaging. A small, non-significant increase in photosystem II operating efficiency was observed in the double expressing line only, suggesting AGPase does not limit photosynthetic rate in strawberry while SBPase might. However, both transgenic lines had an increase non-photochemical quenching, suggesting a role of starch synthesis in regulation of the photosystem. Overall, these results lay the groundwork for realising increased photosynthetic efficiency in strawberry and other fruiting crops and describe genetic and physiological targets limiting strawberry photosynthetic rate for future study.