cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measuring tidal effects with the Einstein Telescope: A design study
Creators: name: Puecher, Anna
name: Samajdar, Anuradha
name: Dietrich, Tim
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Over the last few years, there has been a large momentum to ensure that the third-generation era of gravitational wave detectors will find its realisation in the next decades, and numerous design studies have been ongoing for some time. Some of the main factors determining the cost of the Einstein Telescope lie in the length of the interferometer arms and its shape: L-shaped detectors versus a single triangular configuration. Both designs are further expected to include a xylophone configuration for improvement on both ends of the frequency bandwidth of the detector. We consider binary neutron star sources in our study, as examples of sources already observed with the current generation detectors and ones which hold most promise given the broader frequency band and higher sensitivity of the third-generation detectors. We estimate parameters of the sources, with different kinds of configurations of the Einstein Telescope detector, varying arm-lengths as well as shapes and alignments. Overall, we find little improvement with respect to changing the shape, or alignment. However, there are noticeable differences in the estimates of some parameters, including tidal deformability, when varying the arm-length of the detectors. In addition, we also study the effect of changing the laser power, and the lower limit of the frequency band in which we perform the analysis.
description: 11 pages, 7 figures, 4 tables
Semirelativistic Bound-State Equations: Trivial Considerations
Creators: name: Lucha, Wolfgang
name: Schöberl, Franz F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Observing renewed interest in long-standing (semi-) relativistic descriptions of bound states, we would like to make a few comments on the eigenvalue problem posed by the spinless Salpeter equation and, illustrated by the examples of the nonsingular Woods-Saxon potential and the singular Hulthén potential, recall elementary tools that practitioners looking for analytic albeit approximate solutions might find useful in their quest.
description: 5 pages, contributed to "QCD@Work 2014 - International Workshop on Quantum Chromodynamics: Theory and Experiment" (16 - 19 June 2014, Giovinazzo, Bari, Italy)
title: The effect of glutathione on type 1 fimbriation in Escherichia coli
Creators: name: Wales, Lynn Donna Kelly
Publisher: name: University of Kent
Year: 2023

description: A wide range of molecular studies are carried out on model organisms such as Escherichia coli. While most E. coli strains are commensal, some have evolved to produce toxins and other virulence factors and are pathogenic. Such a virulence factor are type 1 fimbriae, filamentous structures that are anchored in the outer membrane of the bacterial cell and enable the attachment of bacteria to host cells, as well as facilitating their invasion The production of type 1 fimbriae is regulated by phase variation. Inversion of fimS, a short DNA element that carries the promoter sequence for the fim gene operon, determines-" phase switching and requires the recombinases FimB and FimE. FimB catalyses OFF-to- ON switching, and levels of fimB expression regulate fimbrial production. The expression of fimB itself is regulated by many factors. This study demonstrates that the tripeptide glutathione is an activator offimB expression. Glutathione is likely to have a periplasmic site of action and is suggested to target and inactivate the periplasmic enzyme SReA. Since SpeA is the first enzyme in the polyamine biosynthetic pathway, levels of glutathione would determine levels of polyamines. It is proposed that polyamines inhibit fimB expression at both the transcriptional and post- transcriptional level, an optimal level of polyamines allowing maximum fimB expression. The regulation of fimB expression at the transcriptional level is potentially mediated via elevated levels of the regulatory protein H-NS, a known inhibitor of fimB expression. However, the polyamines may have a direct effect on fimB translation as well. Type 1 fimbriae are proinflammatory and a virulence factor in pathogenic E. coli. The level of reduced GSH in the periplasm may thus provide the bacterium with a key indicator of host defence activation. Moreover, the fact that both GSH and the polyamines protect against oxidative stress suggests a raison d'etre for their mutual regulation.
Green's Function Integral method for Pressure Reconstruction from Measured Pressure Gradient and the Interpretation of Omnidirectional Integration
Creators: name: Wang, Qi
name: Liu, Xiaofeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Accurately and efficiently measuring the pressure field is of paramount importance in many fluid mechanics applications. The pressure gradient field of a fluid flow can be determined from the balance of the momentum equation based on the particle image velocimetry (PIV) measurement of the flow kinematics, which renders the experimental evaluation of the material acceleration and the viscous stress terms possible. We present a novel method of reconstructing the pressure fields from error-embedded pressure gradient measurement data. This method utilized Green's function of the Laplacian operator as the convolution kernel that relates pressure to pressure gradient. A compatibility condition on the boundary offers equations to solve for the boundary pressure. This Green's function integral (GFI) method has a deep mathematical connection with the state-of-the-art omnidirectional integration (ODI). As mathematically equivalent to ODI in the limit of an infinite number of line integral paths, GFI spares the necessity of line integration along zigzag integral paths, rendering generalized implementation schemes for both two and three-dimensional problems with arbitrary geometry while bringing in improved computational efficiency. In the current work, we apply GFI to pressure reconstruction of simple canonical and isotropic turbulence flows embedded with error in two-dimensional and three-dimensional domains, respectively. Uncertainty quantification is performed by eigenanalysis of the GFI operator in a square domain. The accuracy and computational efficiency of GFI are evaluated and compared with ODI.
description: 13 pages,9 figures
A Bronze Age cremation burial from Upton, Northampton
Creators: name: Foard-Colby, Anne
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 35, 15-26
description: Between September and November 2007, an archaeological watching brief was carried out by Northamptonshire Archaeology during flood attenuation works on the north side of the River Nene, between Kislingbury and Upton, Northampton.� The topsoil was stripped in three separate areas.� In one area a small pit contained the cremated bones of an adult within an inverted Collared Urn.� This burial has been radiocarbon dated to the early 2nd millennium BC, the early Bronze Age.� A number of postholes lay nearby, one of which cut the cremation pit and may have contained a grave marker.� However, there is no indication that this burial lay close to a round barrow or any other funerary deposits, so it appears to have been an isolated burial.� A series of undated shallow, parallel gullies and postholes, possibly part of a water-meadow management system, and a post-medieval or modern boundary ditch were recorded in the other watching brief areas
Les attentes des élèves vis-à-vis de l’enseignement et de l’apprentissage de l’allemand en 6H
Creators: name: Montet, Jenily
name: Roy, Salomé
Publisher: name: Unknown
Year: 0
Subjects: subject: allemand, langue étrangère
subject: motivation
subject: attentes
subject: utilité
subject: enseignement/apprentissage
subject: plaisir

description: Comment intéresser mes élèves à l’allemand ? Qu’attendent-ils de moi ou de mon enseignement ? Comment les motiver à apprendre cette langue non seulement étrangère mais aussi nationale ? Voilà différentes questions qu’un enseignant devrait, selon nous, se poser avant de débuter l’année scolaire. En effet, un enfant à la rentrée scolaire est habité par divers sentiments et doit pouvoir en discuter avec la personne qu’il va voir tous les jours. Selon nous, c’est impossible d’avoir une bonne relation avec des élèves qu’on ne connaît pas. Afin de favoriser la confiance, la motivation et l’envie d’apprendre, l’enseignant doit s’intéresser aux plaisirs des élèves et aux attentes qu’ils ont vis-à-vis de l’enseignement et de l’apprentissage d’une branche. En allemand par exemple, une fois ces informations récoltées, elles pourront lui être utiles pour varier ses tâches et travailler des thèmes qui plaisent aux enfants. Cependant, les connaître ne suffit pas ; les enseignants doivent également aider les élèves à donner du sens aux apprentissages et trouver leurs utilités. D’après nous, ceci paraît essentiel afin que l’enfant puisse ensuite se fixer des objectifs et avoir des attentes personnelles. Finalement, il convient de découvrir si les élèves ont déjà des attentes quant à l’enseignement et à l’apprentissage de l’allemand en 6H (HarmoS). Pour tenter de répondre à cette question nous avons entrepris une recherche en élaborant un questionnaire destiné à nos deux classes de stage respectives qui aborde ; le plaisir et son lien avec la motivation, les bénéfices attendus hors du cadre scolaire et pour le futur, ainsi que le type d’activités proposées en classe. Nous en avons conclu que les enfants ne sont pas toujours conscients de leurs attentes et que c’est à l’enseignant d’en faire émerger afin qu’ils soient motivés lors de l’apprentissage de l’allemand.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primair
An air-cooled Litz wire coil for measuring the high frequency hysteresis loops of magnetic samples : a useful setup for magnetic hyperthermia applications
Creators: name: Connord, V.
name: Mehdaoui, B.
name: Tan, R. P.
name: Carrey, J.
name: Respaud, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A low-cost and simple setup for measuring the high-frequency hysteresis loops of magnetic samples is described. An AMF in the range 6-100 kHz with amplitude up to 80 mT is produced by a Litz wire coil. The latter is air-cooled using a forced-air approach so no water flow is required to run the setup. High-frequency hysteresis loops are measured using a system of pick-up coils and numerical integration of signals. Reproducible measurements are obtained in the frequency range of 6-56 kHz. Measurement examples on ferrite cylinders and on iron oxide nanoparticle ferrofluids are shown. Comparison with other measurement methods of the hysteresis loop area (complex susceptibility, quasi-static hysteresis loops and calorific measurements) is provided and shows the coherency of the results obtained with this setup. This setup is well adapted to the magnetic characterization of colloidal solutions of MNPs for magnetic hyperthermia applications.
description: 24 pages, 8 figures
title: Visiter le Musée Cantonal des Beaux-Arts de Lausanne avec une classe d’adolescents
title: Quelles modalités pédagogiques pour stimuler l’intérêt et la motivation des élèves ?
titleType: Subtitle
Creators: name: Stettler, Stéphanie
name: Wamba, Fabrice
Publisher: name: Unknown
Year: 0
Subjects: subject: adolescents
subject: musée des beaux-arts
subject: médiation culturelle
subject: représentations
subject: secondaire I
subject: motivation

description: Comment stimuler l’intérêt des élèves adolescents lors d’une visite à un musée des beaux- arts ? Le besoin de se construire sur le plan identitaire et le besoin de prendre de l’autonomie sont spécifiquement aigus à l’adolescence et il nous a paru essentiel de les prendre en compte lors du choix des modalités de la visite. Une enquête préliminaire quantitative sur les représentations que les adolescents se font d’une telle visite, puis trois expériences de visites avec des élèves du secondaire I au Musée Cantonal des Beaux-Arts de Lausanne, et enfin un entretien avec la médiatrice culturelle de ce musée lausannois permettent de donner quelques clés pour créer les conditions favorables à la motivation des élèves pendant la visite d’un musée des beaux-arts, résultats qui viennent d’ailleurs appuyer des recherches antérieures sur ce sujet : l’organisation du temps de la visite avec le choix ou non de la visite guidée, un temps de visite libre pendant lesquels les élèves ont une activité de manière autonome, la part de temps de parole donné aux élèves contribuent à éveiller l’intérêt des élèves. Enfin, la motivation des élèves lors de la visite peut être renforcé par une préparation de qualité à la visite par le travail en classe ; quant à la phase d’après la visite, elle peut permettre aux élèves d’échanger des impressions avec davantage de recul et être l’occasion de reprendre des éléments de l’exposition comme amorce pour une nouvelle activité. L’entretien avec la médiatrice culturelle du musée des Beaux-Arts de Lausanne a fait émerger de nouvelles idées sur la manière de visiter le musée avec une classe et ces expériences ont finalement aussi donné aux auteurs une confiance pour l’exploration de modalités de visite plus créatives.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Excavation of a Romano-British enclosure complex at Burton Wold Farm, Burton Latimer, Northamptonshire
Creators: name: Edgeworth, Matt
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 35, 27-43
description: Investigation of cropmarks known from aerial photographs revealed a rectangular complex of smaller enclosures, pits and other features, dating from the 1st-4th centuries AD.� This report gives an integrated account of the archaeological work carried out during groundworks for the construction of a wind farm on land in Burton Wold Farm in the eastern part of Burton Latimer parish.� It combines evidence from desktop assessment, geophysical survey, trial trench evaluation, watching brief and full excavation - focusing in particular upon the cropmark complex in the northern part of the Development Area, where Turbine 7 was to be located.� Here geophysical survey gave an overall view of the form of the complex as a whole, while excavation allowed a small area within the larger complex to be examined in detail.� Sections were excavated through enclosure ditches, gullies and a large pit.� The enclosures are thought to have functioned as pens for livestock.� Although no evidence of houses or other structures was found, considerable quantities of pottery suggest domestic activity nearby within the enclosure complex.� The site went out of use by the 4th century AD.
Stellar Signals of a Baryon-Number-Violating Long-Range Force
Creators: name: Davoudiasl, Hooman
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We entertain the novel possibility that long range forces may lead to violations of accidental symmetries, in particular baryon number. Employing an ultralight scalar, with a mass $\ll$ eV, we illustrate that this scenario can lead to vastly disparate nucleon lifetimes, in different astronomical objects. Such a long range interaction can yield a number of potentially observable effects, such as a flux of neutrinos at $\gtrsim 10$ MeV from the Sun and heating of old neutron stars. We examine the prospects for constraining this scenario, with current and future astrophysical data, and find that neutron star heating provides the strongest present and near term bounds. Simple extensions of our setup allow for the ultralight scalar to constitute the dark matter of the Universe. This suggests that matter-enhanced baryon number violation can be a signal of ultralight dark matter, which has apparently been overlooked, so far.
description: 7 pages, 1 figure
title: Le rapport à l'orthographe des enseignants de disciplines autres que le français
title: Pistes pour une réorientation des pratiques ?
titleType: Subtitle
Creators: name: Durussel, Antoine
Publisher: name: Unknown
Year: 0
Subjects: subject: Orthographe
subject: Rapport
subject: Secondaire
subject: Enseignants
subject: Disciplines autres que le français
subject: Gymnase

description: La question de l'orthographe est investie, dans le monde francophone, d'une importance qui ne manque pas d'étonner : elle suscite quantité de débats, aussi bien de spécialistes que dans la population. Ces questionnements trouvent un large écho dans les médias et de nombreuses publications. Le ton général du discours ambiant est pessimiste, marqué par le déclinisme. Ce travail explore la question de l'orthographe au niveau de l’enseignement des gymnases, où elle serait censée ne plus se poser, l'orthographe étant alors souvent considérée comme un acquis. Un accent particulier est mis sur les enseignants de disciplines autres que le français. Ces derniers ont été soumis à des questionnaires permettant de disposer de données sur leurs représentations et leurs pratiques. Les résultats indiquent d'abord une grande attention apportée à l'orthographe dans la pratique personnelle d'écriture de ces enseignants. Concernant la prise en compte de l'orthographe dans l'évaluation, des divergences notables sont observées suivant le type de travail évalué, ce qui pose certaines questions en matière de cohérence de l’enseignement et de l'évaluation. Ces questionnements se retrouvent également dans l'usage des moyens de vérification orthographique lors des évaluations. Pour terminer, des questions plus ouvertes sur le niveau orthographique et les interventions possibles montrent que les enseignants interrogés manifestent une certaine perméabilité aux discours ambiants déclinistes, qu'ils ont souvent des idées bien arrêtées sur les solutions que le monde scolaire pourrait y apporter mais qu'ils n'envisagent guère de pouvoir les mettre en pratique eux-mêmes. En conséquence de ces résultats, des pistes d'inflexion des pratiques sont examinées, allant du retour aux méthodes anciennes à la réforme globale de l'orthographe française en passant par des solutions plus pratiques et un questionnement de la place de l’enseignement de l'orthographe dans les différentes disciplines.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Review of Physics Results from the Tevatron
Creators: name: Bandurin, Dmitry
name: Bernardi, Gregorio
name: Gerber, Cecilia
name: Junk, Thomas
name: Juste, Aurelio
name: Kotwal, Ashutosh
name: Lewis, Jonathan
name: Mesropian, Christina
name: Schellman, Heidi
name: Sekaric, Jadranka
name: Toback, David
name: Van Kooten, Richard
name: Vellidis, Costas
name: Zivkovic, Lidija
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a comprehensive review of the physics results obtained by the CDF and D0 collaborations up to summer 2014, with emphasis on those achieved in the Run II of the Tevatron collider which delivered a total integrated luminosity of ~10 fb-1 at sqrt{s}=1.96 TeV. The results are presented in six main physics topics: QCD, Heavy Flavor, Electroweak, Top quark, Higgs boson and searches for New Particles and Interactions. The characteristics of the accelerator, detectors, and the techniques used to achieve these results are also briefly summarized.
description: Article submitted to the International Journal of Modern Physics A (IJMPA) as one of the seven chapters of the special issue on "Review of Physics at the Tevatron", editor G. Bernardi. This article contains the complete table of contents, and the introductory chapter. 12 pages, 19 references
Active topological defect absorption by a curvature singularity
Creators: name: Vafa, Farzan
name: Nelson, David R.
name: Doostmohammadi, Amin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Using the Born-Oppenheimer approximation, we present a general description of topological defects dynamics in $p$-atic materials on curved surfaces, and simplify it in the case of active nematics. We find that activity induces a geometric contribution to the motility of the $+1/2$ defect. Moreover, in the case of a cone, the simplest example of a geometry with curvature singularity, we find that the motility depends on the deficit angle of the cone and changes sign when the deficit angle is bigger than $π$, leading to the change in active behavior from contractile (extensile) to extensile (contractile) behavior. Using our analytical framework, we then identify for positively charged defects the basin of attraction to the cone apex and present closed-form predictions for defect trajectories near the apex. The analytical results are quantitatively corroborated against full numerical simulations. Provided the capture radius is small compared to the cone size, the agreement is excellent.
description: 14 + 4 pages, 7 figures
Archaeological recording of a Roman Villa at Brigstock Road, Stanion, Northamptonshire April-May 2002
Creators: name: Tingle, Martin
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 35, 95-136
description: In the course of topsoil stripping prior to the construction of a composting facility, part of a Roman villa was unexpectedly revealed, together with ancillary structures.� A pond-like feature beneath the excavated part of the villa contained dumped occupation debris, including carbonised plant remains, dating to the later first century AD, and indicating the presence of occupation on the site from at least this time, while pottery from quarry pits to the north, excavated in 1984, may suggest an origin as early as the mid-first century AD. The main villa building was constructed in the later first century AD. The excavated remains comprised the westernmost room of a villa building aligned west to east, and at least 30-35m long, with a corridor along the northern side, perhaps forming an open veranda.� The excavated and aerial photographic evidence would suggest a simple plan form, with the main strip building perhaps comprising some five domestic rooms. There were remnants of tessellated pavements in both the corridor and the excavated room, and displaced smaller tesserae from the room may suggest the presence of a small central mosaic. Fragments of painted wall plaster also came from this room. Amongst the ceramic building material from the demolition rubble there is a small amount of box-flue tile suggesting the presence of at least one room with a hypocaust heating system. A corn drier or malting oven lay to the west of the villa, along with a small oven that incorporated the base of an amphora. In this area there was also a stone-lined well, and its fills contained sherds of amphora, partially articulated cow skeletons and the skeleton of a raven. In the late second or early third century the building was abandoned. Deposits of burnt debris lying on the scorched surface of the tessellated pavement probably relate to the systematic dismantling of the building, as accumulations of burning debris. Very small quantities of fourth-century pottery indicate that there was some later activity in the vicinity of the villa.
Coherent and incoherent electron-phonon coupling in graphite observed with radio-frequency compressed ultrafast electron diffraction
Creators: name: Chatelain, Robert P.
name: Morrison, Vance R.
name: Klarenaar, Bart L. M.
name: Siwick, Bradley J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Radio-frequency compressed ultrafast electron diffraction has been used to probe the coherent and incoherent coupling of impulsive electronic excitation at 1.55 eV (800 nm) to optical and acoustic phonon modes directly from the perspective of the lattice degrees of freedom. A bi-exponential suppression of diffracted intensity due to relaxation of the electronic system into incoherent phonons is observed, with the 250 fs fast contribution dominated by coupling to the $E_{2g2}$ optical phonon mode at the $Γ$-point ($Γ-E_{2g2}$) and $A_1^{'}$ optical phonon mode at the $K$-point ($K-A_1^{'}$). Both modes have Kohn anomalies at these points in the Brillouin zone. The result is a unique non-equilibrium state with the electron subsystem in thermal equilibrium with only a very small subset of the lattice degrees of freedom within 500 fs following photoexcitation. This state relaxes through further electron-phonon and phonon-phonon pathways on the 6 ps timescale. In addition, electronic excitation leads to both in-plane and out-of-plane coherent lattice responses in graphite whose character we are able to fully determine based on spot positions and intensity modulations in the femtosecond electron diffraction data. The in-plane motion is specifically a $Γ$-point shearing mode of the graphene planes with an amplitude of approximately 0.06 pm and the out-of-plane motion an acoustic breathing mode response of the film.
description: 12 pages, 4 figures
Combining Novel High Resolution Remote Sensing and In Situ data for Monitoring the High Arctic Tundra
Creators: name: GIAMBERINI, MARIASILVIA
name: Di Valdengo, Francesca Avogadro
name: Baneschi, Ilaria
name: Baronetti, Alice
name: Karnieli, Arnon
name: Magnani, Marta
name: Monteiro, Antonio
name: Raco, Brunella
name: Salvoldi, Manuel
name: Vivaldo, Gianna
name: Provenzale, Antonello
Publisher: name: Zenodo
Year: 2023
Subjects: tundra
arctic
gross primary productivity
Svalbard
remote sensing
flux chambers

description: This poster has been presented at the 2023 ASSW conference in Vienna, Austria, and describes the ongoing activities aimed at extracting GGP indexes of the tundra vegetation in Svalbard (NO) using the micro satellite VENmS and in situ- measurements of GPP for validation. Satellite data are particularly valuable in the High Arctic, where acquiring in situ data is particularly challenging. Such data in the VIS-NIR spectrum allow the assessment of the tundra soil-vegetation dynamics and in particular the spatiotemporal changes in vegetation biomass and the estimate of vegetation gross primary productivity (GPP). Due to the limited number of summer cloud free days during summer in such environment, the 1-day revisit time of the new experimental VENμS satellite operating in the VIS-NIR spectrum (https://venus.cnes.fr/en/VENUS/index.htm) is a significant advantage. Moreover, the 4 meters resolution of VENμS may successfully capture the tundra heterogeneity. In this work we present the preliminary results of the summer 2022 acquisition of VENμS images on the Brøgger peninsula in Svalbard (NO) compared with In Situ GPP and climatic variables measured in the tundra near Ny Ålesund. Our final aim at the end of at least two years acquisition is to develop new indices specific for the tundra for (a) assessing GPP and vegetation phenology and (b) exploiting the four VENµS red-edge bands for calculating several other specific vegetation indices. VENμS data and derived products will be open and respond to FAIR principles. Moreover, through VENµS data, we will have the opportunity to compare the spatial extent and vegetation biomass between VENµS and Sentinel-2 derived products and to generalise the results in other remote sites of the Brøegger peninsula.
Infrared dichroism of gold nanorods controlled using a magnetically addressable mesophase
Creators: name: Slyusarenko, Kostyantyn
name: Constantin, Doru
name: Abécassis, Benjamin
name: Davidson, Patrick
name: Chaéac, Corinne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Gold nanorods have unique optical properties, which make them promising candidates for building nano-structured materials using a "bottom-up" strategy. We formulate stable bulk materials with anisotropic optical properties by inserting gold and iron oxide nanorods within a lamellar mesophase. Quantitative measurements of the order parameter by modelling the absorbance spectra show that the medium is macroscopically aligned in a direction defined by an external magnetic field. Under field, the system exhibits significant absorption dichroism in the infrared range, at the position of the longitudinal plasmon peak of the gold nanorods (about 1200 nm), indicating strong confinement of these particles within the water layers of the lamellar phase. This approach can yield soft and addressable optical elements.
Comment utiliser un questionnaire pour mettre en évidence les préconceptions des élèves dans le domaine de la physique de Newton ?
Creators: name: Triscornia, Christophe
Publisher: name: Unknown
Year: 0
Subjects: subject: Concepts quotidiens
subject: concepts scientifiques
subject: obstacles
subject: outils
subject: mécanique
subject: Newton

description: L’objectif de ce travail est de déterminer s’il est possible de catégoriser les concepts quotidiens des gymnasiens dans le cadre de la mécanique newtonienne en leur soumettant un questionnaire. Il a été décidé dans le cadre de ce travail de ne poser que trois questions qui sont en lien direct avec les trois lois de Newton. Ces questions sont des exercices classiques de la physique newtonienne. Les élèves doivent expliquer ce qui se passe et non pas calculer la valeur de telle ou telle grandeur physique. Toutes les questions sont donc des questions ouvertes. Le questionnaire ainsi élaboré a été distribué à 3 classes du gymnase de Chamblandes. Après l’analyse des réponses des élèves, on se rend compte que le nombre de questions posées a son importance. En effet, 3 questions ne suffisent pas à faire émerger les concepts quotidiens des élèves en rapport avec les lois de Newton. Ces notions sont trop complexes. Pour faire le travail correctement, il aurait fallu poser plusieurs questions pour chaque sujet. La formulation et le choix des questions a également son important si on souhaite avoir des résultats utilisables. Une mauvaise formulation ou une situation physique mal choisie peut influencer les réponses des élèves, comme cela a été le cas ici avec la question 2. De plus, comme il est très difficile à un élève d’expliquer en quelques lignes un raisonnement complexe, il faudrait aussi pouvoir s’entretenir avec lui, écouter ses explications et lui poser des questions pour identifier clairement ses préconceptions. Malheureusement cela prend beaucoup de temps et n’a pas pu être fait dans le cadre de ce travail
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
2D Black Holes, Bianchi I Cosmologies, and $α'$
Creators: name: Codina, Tomas
name: Hohm, Olaf
name: Zwiebach, Barton
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report two surprising results on $α'$ corrections in string theory restricted to massless fields. First, for critical dimension Bianchi type I cosmologies with $q$ scale factors only $q-1$ of them have non-trivial $α'$ corrections. In particular, for FRW backgrounds all $α'$ corrections are trivial. Second, in non-critical dimensions, all terms in the spacetime action other than the cosmological term are field redefinition equivalent to terms with arbitrarily many derivatives, with the latter generally of the same order. Assuming an $α'$ expansion with coefficients that fall off sufficiently fast, we consider field redefinitions consistent with this fall-off and classify the higher derivative terms for two-dimensional string theory with one timelike isometry. This most general duality-invariant theory permits black-hole solutions, and we provide perturbative and non-perturbative tools to explore them.
description: 41 pages, V2 - references added
Driving Economic Knowledge through Open Science: Risks and Opportunities
Creators: name: Almarzouq, Batool
Publisher: name: Zenodo
Year: 2023
Subjects: open science
saudi arabia
vision 2030
open source
co-creation
open science community Saudi Arabia
Reproducibility Crisis
arab
Theory Of Change (ToC)

description: The talk began by emphasising the driving force behind the Open Science movement, and the reproducibility crisis . This crisis highlights a significant challenge in science: despite stringent peer-review processes, a substantial number of studies remain non-replicable. Such shortcomings not only question the integrity of scientific research but also result in the wastage of billions in both funds and resources. 
Open Science presents itself as a promising solution the reproducibility crisis.  However, Open Science extends beyond resources/data sharing; it revolves around co-creating and democratising the entire scientific process, making strides towards inclusivity through initiatives like citizen science and participatory Science.
The advantages of Open Science are numerous. Apart from enhancing the quality and reach of scientific research, it promotes public collaboration, enabling the broader public to actively partake in scientific breakthroughs. Economically speaking, adopting Open Science principles proves lucrative. For example, the European economy has reaped substantial benefits by weaving Open Science into its research paradigm.
However, like any significant movement, Open Science is not without its challenges. There's a growing concern that the essence of Open Science might be diluted if it's treated merely as a trend or a checkbox to tick off. To truly harness the potential of Open Science, it's imperative to view it as a cultural change. This shift is not just about introducing new tools or methodologies but about transforming the very ethos of how research is conducted.
The talk then go through three  Open Science projects, two from the UK and one from KSA, that the speaker has actively collaborated on. These are "The Turing Way", an initiative was initiated to transform the culture of data science, and "AIM RSF", which supports a community working with AI and health data. The speaker then cover a grassroots initiative she is leading called the Open Science Community Saudi Arabia (OSCSA), which emphasises the co-creation and contextualisation of Open Science within Arab-speaking nations.
A Hail Size Distribution Impact Transducer
Creators: name: Lane, John E.
name: Youngquist, Robert C.
name: Haskell, William D.
name: Cox, Robert B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: An active impact transducer has been designed and tested for the purpose of monitoring hail fall in the vicinity of the Space Shuttle launch pads. An important outcome of this design is the opportunity to utilize frequency analysis to discriminate between the audio signal generated from raindrop impacts and that of hailstone impacts. The sound of hail impacting a metal plate is sub-tly but distinctly different than the sound of rain impacts. This useful characteristic permits application of signal processing algorithms that are inherently more robust than techniques relying on amplitude processing alone in the implementation of a hail disdrometer.
title: Quelles sont les causes possibles des difficultés en mathématiques
title: analyse d'un cas
titleType: Subtitle
Creators: name: Guarnori, Sandrine
Publisher: name: Unknown
Year: 0
Subjects: subject: Mathématiques
subject: Difficultés
subject: Entretien d’explicitation
subject: Appui
subject: Didactique

description: Ce travail s’inscrit dans une recherche générale sur la dyscalculie dans le secondaire II menée par les professeurs Michel Deruaz et Thierry Dias. Ces deux chercheurs s'interrogent sur les importantes lacunes en mathématiques visibles chez certains élèves : sont-t-elles d'origine génétique (dyscalculie) ou dues à l'enseignement ? Pour effectuer cette étude, ils s'intéressent à des élèves en grandes difficultés mathématiques. Notre travail consiste à étudier le cas d'un élève de première année de gymnase avec une moyenne largement insuffisante en mathématiques. Comme outil de travail, nous avons utilisé quatre vidéos tournées lors de cours d'appuis donnés à l’élève dans son école. Au travers de cette analyse, nous avons tenté de déterminer quelles sont les origines possibles des lacunes de l’élève et avons vu comment faire évoluer favorablement cette situation. Après avoir présenté le contexte général de l’appui, nous avons exposé la modalité particulière de celui-ci qui consistait en l’extériorisation de la pensée. Nous avons donc approfondi les buts de l’entretien d’explicitation, qui sont principalement de permettre à l’élève de prendre conscience de ce qu’il pense et de construire un langage interne efficace, de permettre à l’enseignant de comprendre le raisonnement de l’élève afin de l’aider à le corriger. Nous avons également expliqué les différentes causes possibles de ses problèmes. Puis nous avons exposé nos hypothèses concernant ses propres difficultés. Nous nous sommes appuyés sur des extrais vidéos et les apports théoriques pour vérifier nos suppositions et nous avons vu quelles sont les solutions proposées. Nous en avons conclu que les difficultés de l'élève proviennent probablement d’un manque de travail et d’un découragement de sa part, de ses bases fragiles et ses lacunes, des difficultés à passer d’un cadre à l’autre, d’un langage interne confus.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Synthesis and properties of new macrocyclic derivates
Creators: name: Della Sala, Paolo
Publisher: name: Universita degli studi di Salerno
Year: 2019
Subjects: subject: CHIM/06 CHIMICA ORGANICA

description: 2017 - 2018
description: This PhD thesis is concerned with the design, synthesis and the characterization of new macrocyclic derivatives. Development of new macrocyclic compounds is a particularly interesting because they can involve like building block in Supramolecular chemistry and Nanochemistry. .. [edited by Author]
On the fundamental limitations of performance for distributed decision-making in robotic networks
Creators: name: Rossi, Federico
name: Pavone, Marco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Multiagent Systems (cs.MA)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper studies fundamental limitations of performance for distributed decision-making in robotic networks. The class of decision-making problems we consider encompasses a number of prototypical problems such as average-based consensus as well as distributed optimization, leader election, majority voting, MAX, MIN, and logical formulas. We first propose a formal model for distributed computation on robotic networks that is based on the concept of I/O automata and is inspired by the Computer Science literature on distributed computing clusters. Then, we present a number of bounds on time, message, and byte complexity, which we use to discuss the relative performance of a number of approaches for distributed decision-making. From a methodological standpoint, our work sheds light on the relation between the tools developed by the Computer Science and Controls communities on the topic of distributed algorithms.
description: Will be presented at CDC2014
title: Conter pour compter
title: Paradoxe de l’oralité comme outil d’entendement pour un malentendant/
titleType: Subtitle
Creators: name: Moos Hofmann, Marianne
Publisher: name: Unknown
Year: 0
Subjects: subject: Appartenance
subject: Posture
subject: Conte
subject: Oralité
subject: Mémoire
subject: Malentendant

description: Mon travail repose sur l’étude de cas de Michka, enfant de 13 ans, soutenu en raison de sa surdité, intégré en 10 VP. Je transcris mes observations, fais des liens théoriques, analyse et interroge l’effet de la narration de contes sur l’intégration, la posture, la mise en projet, l’écoute, le langage, la mémorisation et l’accès aux apprentissages. Michka – comme tous les malentendants – a un grand besoin d’être entendu. Et, comme un conteur, avant de lui raconter quoi que ce soit, je lui ai prêté mon oreille, l’ai écouté. Ce n’est qu’ensuite que je lui ai prêté ma voix, pour traduire mes impressions à la réception de ses paroles autant que de ses silences. Et à son tour il m’a redonné son sentiment en lien avec mes propos. Nous avons « tricoté » l’écoute et la parole – de notions à prendre et à apprendre – pour échafauder, maille après maille, des sons, des lettres, en mots, en phrases et en textes, et revêtir des idées sur un fond de vérité – celles qui tiennent chaud à l’âme humaine – en cherchant leur traduction, leur tradition, sans trahison, mais avec la liberté de la curiosité. Il semblerait qu’ainsi, dans ce tissage – nous servant mutuellement de trame, au fil de la parole – nous ayons pu enfiler des perles de mots, de sons et de sens sur le collier de notre vie d’écolier et d’enseignante. En tant que conteurs « en espérance », nous nous sommes laissé inspirer par ce qui s’est passé dans l’Histoire pour représenter nos histoires. Nous avons enclenché ainsi la machine à ouvrir les sens du temps présent, pour plonger dans l’essence des pages oubliées ou imaginaires du Grand Livre, à l’écriture duquel nous participons. Nous avons raconté, retracé et décrit les empreintes des hommes d’autrefois, comme si elles étaient les nôtres et que tout était à venir, puisque les contes empruntent des pas-sages pour rendre des traces vivantes, sur le chemin de l’homme en quête de son humanité. Michka s’est élevé au grade d’aspirant à l’école de la vie. Il a mis ainsi à jour la nuit des temps, en y allumant une étoile qui porte son nom. Nous avons exploré le conte dans sa dimension d’inclusion, de lien aux autres et à son propre imaginaire, de redressement autant de celui qui conte que de celui qui écoute – dans la posture et dans la fierté – favorisant une mise en action du potentiel. Le conte et sa narration nous ont montré une infinité de voies possibles pour nous mettre en route au présent, entre représentation du passé et projet de futur, afin d’acquérir le pouvoir de devenir acteur chacun de sa vie, de son histoire, libre de dire et d’écrire sur son propre compte, ce qui lui chante.
description: Mémoire professionnel, Master of arts en enseignement spécialisé
Mеждурядная обработка почвы в посевах сои
Creators: name: Balešević Tubić, Svetlana
name: Miladinović, Jegor
name: Đorđević, Vuk
name: Miladino, Zlatica
name: Vasiljević, Marjana
Publisher: name: Zenodo
Year: 2022
Subjects: soybean
cropprotection

description: Молодые растения сои уязвимы для конкуренции с сорняками, особенно если весенняя погода прохладная. Междурядная культивация является одним из методов, используемых для того, чтобы изменить баланс в конкуренции между культурой и сорной флорой в пользу сои. Young soybean plants are vulnerable to weed competition, especially if the spring weather is cool. Inter-row cultivation is one of the methods used to shift the balance of crop-weed competition in favor of soybeans.
A re-investigation of the scientific dating evidence from the hillfort at Rainsborough
Creators: name: Clelland, Sarah-Jane
name: Bat, Cathy M
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 36, 1-7
description: A chronological framework is an integral part of any archaeological interpretation but it is often restricted by the lack of precision in the dates available to the archaeologist. This is a particular problem in the Iron Age, due to the limitations of radiocarbon dating in this period; specifically the period between 700-400BC where the radiocarbon calibration curve provides large errors. Archaeomagnetic dating is predominately a method of dating materials that have been heated in antiquity. Therefore archaeomagnetic studies offer an underexploited opportunity to provide dates for the Iron Age through the study of past geomagnetic field, as recorded by archaeological materials. As with radiocarbon, archaeomagnetic dating requires a calibration curve to provide calendar dates. However, in order to produce a calibration curve it is necessary to assign a calendar date to every magnetic direction used to construct it. One of the main problems with the current method of calibrating magnetic directions is the imprecision of the calendar dates attributed to the magnetic direction determinations used in it. This ongoing research is attempting to improve on the independent dating associated with each data point in the current calibration curve. Unlike radiocarbon dating, there is evidence that the direction of the geomagnetic field was undergoing rapid changes between 700-100BC, so archaeomagnetism should be capable of high resolution dating during this period. This paper describes how evidence from the Iron Age hillfort at Rainsborough is being used to improve the current archaeomagnetic calibration curve for the UK.
Supplementary file 2, Integrated borehole image and rotary sidewall core data to support infrastructure-led appraisal: Capercaillie Field, Central North Sea
Creators: name: Neal, Adrian
name: James, Andrea
name: Payne, Dorothy
name: Ashton, Michael
name: van den Beukel, Niek
name: Storer, David
Publisher: name: Geological Society of London
Year: 2023
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Integrated borehole image and rotary sidewall core data to support infrastructure-led appraisal: Capercaillie Field, Central North Sea Geological Data Summary Sheets for wells 29/04e-5and 29/04e-5z, including their full suite ofwireline log data, borehole image interpretations, RSWC locations and reservoir quality attributes.
Die Kirchenhistoriker in der DDR und die marxistischen Beiträge zur Reformationsgeschichte bis zum Jubiläum von 1968
Creators: name: Bräuer, Siegfried
Publisher: name: Mitteilungen zur Kirchlichen Zeitgeschichte
Year: 2022

description: Mitteilungen zur Kirchlichen Zeitgeschichte, Bd. 4 (2010)
Open Free Energy: An Open Source Ecosystem for Alchemistry
Creators: name: Swenson, David W.H.
name: Alibay, Irfan
name: Dotson, David L.
name: Ries, Benjamin
name: Henry, Mike M.
name: Baumann, Hannah
name: Eastwood, James Baggs
name: Mitchell, Josh
name: Gowers, Richard J.
Publisher: name: Zenodo
Year: 2023

description: Talk at the first US-RSE meeting (held in October 2023, in Chicago, IL). Aimed at non-chemist research software engineers, this talk covers the basic science behind Open Free Energy's software, the financial structure of the Open Molecular Software Foundation and Open Free Energy, and some of the software design decisions that have been made by Open Free Energy.