cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bootstrapping elliptic Feynman integrals using Schubert analysis
Creators: name: Morales, Roger
name: Spiering, Anne
name: Wilhelm, Matthias
name: Yang, Qinglin
name: Zhang, Chi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The symbol bootstrap has proven to be a powerful tool for calculating polylogarithmic Feynman integrals and scattering amplitudes. In this letter, we initiate the symbol bootstrap for elliptic Feynman integrals. Concretely, we bootstrap the symbol of the twelve-point two-loop double-box integral in four dimensions, which depends on nine dual-conformal cross ratios. We obtain the symbol alphabet, which contains 100 logarithms as well as 9 simple elliptic integrals, via a Schubert-type analysis, which we equally generalize to the elliptic case. In particular, we find a compact, one-line formula for the (2,2)-coproduct of the result.
description: 5+6 pages, 4 figures
title: Adopting the POSI Principles
Creators: name: Pentz, Ed.
name: Buys, Matt
Publisher: name: Zenodo
Year: 2021
Subjects: open scholary infrastructure
principles
open science

description: Inclusive and efficient open research depends on foundational open scholarly infrastructure. It has become increasingly clear that there is a class of shared infrastructure to enable open research that should be open, community-governed, sustainable, and trusted by the research community. However, to date, there has been little clarity about how to assess, or even define, open scholarly infrastructure. As services that the scholarly community relies on and are essential to open research have been closed down or sold, it is imperative to understand and assess what constitutes open scholarly infrastructure.

 The "Principles of Open Scholarly Infrastructure" (POSI) (https://doi.org/10.24343/C34W2H, Bilder, Neylon, Lin, 2015) were conceived to further the understanding and assessment of services and tools that the scholarly research community relies on. The 16 POSI principles and practices were inspired by experiences creating Crossref and ORCID and have been discussed over many years. The principles guide transparency, trustworthiness, openness, sustainability, insurance, and responsive community governance.

 This poster—prepared by some of those who have publicly committed to POSI so far—will walk through the principles, highlight the areas where the community may be assured or see a risk, and will call for others to self-assess and make a promise.

 POSI provides the framework for self-assessment and a pathway to building trust within the scholarly community. Organizations and services that have adopted POSI so far include Crossref, DataCite, Dryad, ROR, JOSS, and OurResearch. Not everyone who has signed up to POSI meets all 16 principles yet, but these initiatives have committed to working to do so. More services and organizations adopting POSI would help future collaboration between the parties, confirming that their fundamental values align and driving home the need to be responsive to the needs and concerns of overlapping stakeholders.
title: Adjournments of intra-urban mobilities in Dar es Salaam
title: Maintaining social and spatial ties in African multi-local action settings.
titleType: Subtitle
Creators: name: Koch, Christoph
name: Rudic, Christiane
Publisher: name: Stichproben - Wiener Zeitschrift für kritische Afrikastudien / Vienna Journal of African Studies
Year: 2015

description: Intra-urban migrants in Dar es Salaam (evicted and voluntarily relocated) maintain relations at former urban places of residence and migrate only within narrow ward- scapes. Informal talks, biographical and narrative interviews about housing finance (multi-cluster street sampling) and social relations (esp. within microfinance groups) showed the importance of the social sphere and activity space in decisions of migration processes. Urban management and relocation plans argue rather financially emphasizing material push and pull factors. For the actors, however, immaterial assets seem to be more important. A qualitative action setting approach (Weichhart 2009) is used to show how people maintain their former center of life during intra-urban migration processes. Exemplary case studies from two informal settlements in Dar es Salaam show the importance of symbolic and social ties as a reason to adjourn mobility. Action settings allow describing prolonged, multi-station resettlement processes and the impact of spatial assets on intra-urban migration decisions that should be taken into consideration for urban planning, resettlement projects and migration management.
title: Enseignement de la biologie et des sciences de la nature
title: quelles alternatives au cours ex-cathedra ?
titleType: Subtitle
Creators: name: Ischer, Mélanie
Publisher: name: Unknown
Year: 0
Subjects: subject: ex-cathedra
subject: biologie
subject: secondaire II
subject: activités
subject: apprentissage
subject: cours magistral

description: Nous n’avons pas de données fiables quant à l’utilisation du cours ex-cathedra au niveau du secondaire II. Le peu de données ayant été récoltées au gymnase suggère qu’il est utilisé de manière non négligeable. Dès lors, nous nous sommes demandés si son utilisation est favorable à l’apprentissage de nos élèves, et si non, quelles sont les alternatives qu’il est possible de mettre en place dans le cadre des cours de biologie au gymnase. La plupart des pédagogues sont contre l’utilisation exclusive du cours ex-cathedra. Il serait largement défavorable à l’apprentissage de nos élèves. Cependant, l’utilisation exclusive d’autres situations d’enseignement ne serait pas obligatoirement meilleure. Un enseignement varié serait la réponse la plus favorable aux apprentissages des élèves. Afin de vérifier ces propos, nous avons donc proposé une séquence en écologie à une classe de deuxième année en discipline fondamentale pour la biologie. L’objectif de cette séquence était de varier au maximum les activités proposées aux élèves. Une fois la séquence terminée, un questionnaire leur a été posé afin de récolter leurs impressions. Il en ressort en effet que les élèves ont apprécié cette séquence car elle était variée. Ils nous ont en effet reporté qu’ils se sont moins ennuyés lors des activités proposées mais ont soulevéπ le fait qu’ils ont besoin du cours ex-cathedra pour synthétiser l’information et apporter des connaissances nouvelles. Selon eux, il est important qu’un bon équilibre entre cours ex-cathedra et activités soit trouvé par l’enseignant. En conclusion, ce travail de mémoire nous a permis de mettre en évidence le fait que l’utilisation exclusive du cours ex-cathedra n’est pas favorable aux apprentissages de nos élèves. Nous proposons donc un répertoire d’alternatives permettant aux enseignants de biologie au niveau secondaire II de varier leur enseignement.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
“A natural alliance”? The PAC’s changing perception of African American activists in the 1960s and 1970s. An analysis of the Azania News.
Creators: name: Barre, Harald
Publisher: name: Stichproben - Wiener Zeitschrift für kritische Afrikastudien / Vienna Journal of African Studies
Year: 2015

description: When the Pan Africanist Congress of South Africa (PAC) was founded in 1959, it outlined its idea of a pan-Africanism which encompassed the entire continent. However, Africans in the diaspora were not mentioned and did not appear to play a role, albeit, pioneers of pan-Africanism, such as W.E.B. DuBois, had clearly included African Americans in their definition of the ‘African people’. Within a year of its founding and the Sharpeville Massacre in 1960, the PAC was banned and had to re-establish itself in exile. At the same time, African American student activism was marked by an ideological turn towards Africa, most prominently known under the slogan ‘Black Power’. Based on analysis of the discourse in PAC publications, namely the Azania News, this article examines how, increased connections changed the PAC’s view of African Americans between the 1960s and 1970s, and seeks to identify obstacles that impeded such developments.
Anisotropic Uniaxial Pressure Response in UCoAl Studied by Nuclear Magnetic Resonance Measurement
Creators: name: Karube, Kosuke
name: Kitagawa, Shunsaku
name: Hattori, Taisuke
name: Ishida, Kenji
name: Kimura, Noriaki
name: Komatsubara, Takemi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed nuclear quadrupole resonance and nuclear magnetic resonance measurements on UCoAl with strong Ising-type anisotropy under $b$- and $c$-axes uniaxial pressure. In the $b$-axis uniaxial pressure ($P_{\parallel b}$) measurement, we observed an increase in the metamagnetic transition field with increasing $P_{\parallel b}$. In the $c$-axis uniaxial pressure ($P_{\parallel c}$) measurement, on the other hand, we observed a ferromagnetic transition in zero magnetic field along the $c$-axis above $P_{\parallel c}$ = 0.08 GPa. The anomaly of the nuclear spin-lattice relaxation rate divided by the temperature $\left[ (T_1 T)^{-1} \right]$ at $T$ = 20 K is suppressed by $P_{\parallel b}$ and slightly enhanced by $P_{\parallel c}$. The anisotropic uniaxial pressure response indicates that uniaxial pressure is a good parameter for tuning the Ising magnetism in UCoAl.
description: 6 pages, 9 figures
Favoriser les progrès des élèves en école professionnelle au travers d'une démarche formative en histoire
Creators: name: Cipolat Mis, Nathalie
Publisher: name: Unknown
Year: 0
Subjects: subject: évaluation formative
subject: produits
subject: critères
subject: erreurs
subject: régulation
subject: séquence d'enseignement

description: Comment est vécue la collaboration entre enseignants et quelle définition ces derniers en donnent-ils? Quels sont les domaines de collaboration les plus importantset pour chacun,quel est le niveau de collaboration effectif? D’une manière générale, la collaboration est-elle perçue comme positive? Les enseignants sont-ils enclins à une collaboration formelle ou se contentent-ils de collaborations informelles? Quels sont les liens entre niveau de collaboration et intégration dans l’établissement scolaire? Quelles valeurs sont associées à l’établissement concerné et quelles sont celles jugées comme les plus importantes? Pour répondre à ces questions, une enquête par questionnaires semi-structurés a été menée auprès des enseignants d’une école professionnelle du canton de Vaud. Les résultats ont été présentésà la lumière de plusieurs travaux dedidacticiens et pédagogues francophones s’étant penchés sur la thématiquedes espaces de collaboration entre enseignants.Il en ressort que ces derniersont conscience de l’importance de la collaboration et en sont globalement satisfaits, tant qu’elle reste peu contraignante.Cependant le jugement est bien moins positif dès que l’on se penche sur des domaines spécifiquestels que l’échange de matériel pédagogique ou, à fortiori, les questions de gestion de classeou de collaboration interdépartementale. Les jugements sont d’autant plus sévères que le potentiel d’amélioration est grand. La question est bien entendu de savoir de quelle manière favoriser la collaboration sans l’imposer, c'est-à-dire comment l’encourager en laissant à l’enseignant suffisamment de liberté. Ce mémoire met en évidence les grandes tendances observées auprès d’enseignants de culture générale et de branches techniques et présente les remarques et observations faites par ces derniers. Il propose ensuite quelques pistes de réflexion dans le but de mettre en perspective des mesures pour favoriser la collaboration entrelesenseignants.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Jamming and flocking in the restricted active Potts model
Creators: name: Karmakar, Mintu
name: Chatterjee, Swarnajit
name: Mangeat, Matthieu
name: Rieger, Heiko
name: Paul, Raja
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the active Potts model with either site occupancy restriction or on-site repulsion to explore jamming and kinetic arrest in a flocking model. The incorporation of such volume exclusion features leads to a surprisingly rich variety of self-organized spatial patterns. While bands and lanes of moving particles commonly occur without or under weak volume exclusion, strong volume exclusion along with low temperature, high activity, and large particle density facilitates jams due to motility-induced phase separation. Through several phase diagrams, we identify the phase boundaries separating the jammed and free-flowing phases and study the transition between these phases which provide us with both qualitative and quantitative predictions of how jamming might be delayed or dissolved. We further formulate and analyze a hydrodynamic theory for the restricted APM which predicts various features of the microscopic model.
title: Collaboration entre les enseignants
title: enquête exploratoire auprès d'une école professionnelle vaudoise
titleType: Subtitle
Creators: name: Virnot, Olivier
Publisher: name: Unknown
Year: 0
Subjects: subject: collaboration
subject: école professionnelle
subject: intégration
subject: participation
subject: enquête
subject: échange

description: Comment est vécue la collaboration entre enseignants et quelle définition ces derniers en donnent-ils ? Quels sont les domaines de collaboration les plus importants et pour chacun, quel est le niveau de collaboration effectif ? D’une manière générale, la collaboration est-elle perçue comme positive ? Les enseignants sont-ils enclins à une collaboration formelle ou se contentent-ils de collaborations informelles ? Quels sont les liens entre niveau de collaboration et intégration dans l’établissement scolaire ? Quelles valeurs sont associées à l’établissement concerné et quelles sont celles jugées comme les plus importantes ? Pour répondre à ces questions, une enquête par questionnaires semi-structurés a été menée auprès des enseignants d’une école professionnelle du canton de Vaud. Les résultats ont été présentés à la lumière de plusieurs travaux de didacticiens et pédagogues francophones s’étant penchés sur la thématique des espaces de collaboration entre enseignants. Il en ressort que ces derniers ont conscience de l’importance de la collaboration et en sont globalement satisfaits, tant qu’elle reste peu contraignante. Cependant le jugement est bien moins positif dès que l’on se penche sur des domaines spécifiques tels que l’échange de matériel pédagogique ou, à fortiori, les questions de gestion de classe ou de collaboration interdépartementale. Les jugements sont d’autant plus sévères que le potentiel d’amélioration est grand. La question est bien entendu de savoir de quelle manière favoriser la collaboration sans l’imposer, c'est-à-dire comment l’encourager en laissant à l’enseignant suffisamment de liberté. Ce mémoire met en évidence les grandes tendances observées auprès d’enseignants de culture générale et de branches techniques et présente les remarques et observations faites par ces derniers. Il propose ensuite quelques pistes de réflexion dans le but de mettre en perspective des mesures pour favoriser la collaboration entre les enseignants.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Rezension: Aktuelle Beiträge zu afrikanischer Stadtforschung
Creators: name: Bodenstein, Carl
Publisher: name: Stichproben - Wiener Zeitschrift für kritische Afrikastudien / Vienna Journal of African Studies
Year: 2015

description: Rezension zu aktuellen Beiträgen zu afrikanischer Stadtforschung: MYERS, Garth. 2011. African Cities. Alternative Visions of Urban Theory and Practice. London/ New York: Zed-Books. 242 Seiten. ISBN 978-1- 84813-509-3. PIETERSE, Edgar/ PARNELL, Susan (eds.). 2014. Africa’s Urban Revolution. London/ New York: Zed-Books. 309 Seiten. ISBN 978-1-78032- 520-0. HAHN, Hans Peter/ KASTNER, Kristin (eds.). 2012. Urban Life-Worlds in Motion. African Perspectives. Bielefeld: transcript (Global Studies). 228 Seiten. ISBN 978-3-8376-2022-1.
Investigation of innovative solutions for fouling control in membrane bioreactors
Creators: name: Scannapieco, Davide
Publisher: name: Universita degli studi di Salerno
Year: 2014
Subjects: subject: ICAR/03 INGEGNERIA SANITARIA-AMBIENTALE
subject: Fouling
subject: Membrane bioreactors
subject: waste water

description: 2012-2013
description: Even though Membrane BioReactors (MBRs) are nowadays widely employed for municipal and industrial wastewater treatment, there is still a lack understanding in several aspects. This is due to the complexity of the process, and its major drawback consists in a poor management of the fouling issue in many wastewater treatment plants. This is why researches have put a great effort to understand MBR fouling in detail and to develop high-flux or low-cost membranes. In the last years, a number of studies have been published concerning fouling in MBRs, and this work aims to develop innovative ways to control fouling phenomena are still hard to predict, given their dependence on a large number of elements...[edited by author]
Rezension. “Writing Invisibility” Nicht-fiktionales und akademisches Schreiben von “Unsichtbarkeit” und Marginalität im urbanen Raum.
Creators: name: Grau, Inge
Publisher: name: Stichproben - Wiener Zeitschrift für kritische Afrikastudien / Vienna Journal of African Studies
Year: 2015

description: Rezension von PAMPALONE, Tanya / ACCONE, Darryl et al. (eds.). 2013. Writing Invisibility. Conversations on the Hidden City. e-book. Johannesburg: Mail & Guardian and ACMS. http://cdn.mg.co.za/content/documents/2013/08/30/migration_book.pdf (07.01.15).
JWST UNCOVER: Extremely red and compact object at$z_{\mathrm{phot}}\simeq7.6$ triply imaged by Abell 2744
Creators: name: Furtak, Lukas J.
name: Zitrin, Adi
name: Plat, Adèle
name: Fujimoto, Seiji
name: Wang, Bingjie
name: Nelson, Erica J.
name: Labbé, Ivo
name: Bezanson, Rachel
name: Brammer, Gabriel B.
name: van Dokkum, Pieter
name: Endsley, Ryan
name: Glazebrook, Karl
name: Greene, Jenny E.
name: Leja, Joel
name: Price, Sedona H.
name: Smit, Renske
name: Stark, Daniel P.
name: Weaver, John R.
name: Whitaker, Katherine E.
name: Atek, Hakim
name: Chevallard, Jacopo
name: Curtis-Lake, Emma
name: Dayal, Pratika
name: Feltre, Anna
name: Franx, Marijn
name: Fudamoto, Yoshinobu
name: Marchesini, Danilo
name: Mowla, Lamiya A.
name: Pan, Richard
name: Suess, Katherine A.
name: Vidal-García, Alba
name: Williams, Christina C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent JWST/NIRCam imaging taken for the ultra-deep UNCOVER program reveals a very red dropout object at $z_{\mathrm{phot}}\simeq7.6$, triply imaged by the galaxy cluster Abell 2744 ($z_{\mathrm{d}}=0.308$). All three images are very compact, i.e. unresolved, with a de-lensed size upper-limit of $r_{e}\lesssim35$ pc. The images have apparent magnitudes of $m_{\mathrm{F444W}}\sim25-26$ AB, and the magnification-corrected absolute UV magnitude of the source is $M_{\mathrm{UV},1450}=-16.81\pm0.09$. From the sum of observed fluxes and from a spectral energy distribution (SED) analysis, we obtain estimates of the bolometric luminosities of the source of $L_{\mathrm{bol}}\gtrsim10^{43} \frac{\mathrm{erg}}{\mathrm{s}}$ and $L_{\mathrm{bol}}\sim10^{44}-10^{46} \frac{\mathrm{erg}}{\mathrm{s}}$, respectively. Based on its compact, point-like appearance, its position in color-color space and the SED analysis, we tentatively conclude that this object is a UV-faint dust-obscured quasar-like object, i.e. an active galactic nucleus (AGN) at high redshift. We also discuss other alternative origins for the object's emission features, including a massive star cluster, Population III, supermassive, or dark stars, or a direct-collapse black hole. Although populations of red galaxies at similar photometric redshifts have been detected with JWST, this object is unique in that its high-redshift nature is corroborated geometrically by lensing, that it is unresolved despite being magnified -- and thus intrinsically even more compact -- and that it occupies notably distinct regions in both size-luminosity and color-color space. Planned UNCOVER JWST/NIRSpec observations, scheduled in Cycle 1, will enable a more detailed analysis of this object.
description: Accepted for publication in ApJ. Considerable updates to the SED-fitting section, including the discussion of a heavily dust-obscured type 1 AGN as the most likely scenario
Adsorption Studies for all the ions from The blending effect of natural polysaccharides with nano-zirconia towards the removal of F− and As(V) from water
Creators: name: Shanika Fernando, M.
name: Wimalasiri, A. K. D. V. K.
name: Dziemidowicz, Karolina
name: Williams, Gareth R
name: Rasika Koswattage, K.
name: Dissanayake, D. P.
name: Nalin De Silva, K. M.
name: De Silva, Rohini M.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: 100799 Nanotechnology not elsewhere classified
subject: FOS: Nanotechnology

description: Nano-zirconia (ZO) was synthesized using a microwave-assisted one-pot precipitation route. Two biopolymers, chitosan (CTS) and carboxymethyl cellulose were blended with ZO at different w/w ratios. The formulation with 30% w/w chitosan (ZO-CTS) was found to give enhanced uptake of F− and As(V). ZO and the most effective ZO-CTS system were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. These confirmed the formation of a composite system containing nanoparticles of 50 nm in size, in which ZO was present in the amorphous form. It was observed that the combination of ZO with CTS improved the F− and As(V) adsorption capacity most notably at pH 5.5. Fluoride adsorption by ZO-CTS followed the Freundlich isotherm model, with an adsorption capacity of 120 mgg−1. Adsorption of As(V) by ZO-CTS could be fitted with both the Langmuir and Freundlich isotherm models and was found to have a capacity of 14.8 mgg−1. Gravity filtration studies conducted for groundwater levels indicated the effectiveness of ZO-CTS in adsorbing As(V) and F− at a pH of 5.5. The ability of the ZO-CTS in removing Cd(II) and Pb(II) was also investigated and no such enhancement was observed and found the neat ZO was the most potent sorbent here.
title: Intégrer des notions d'histoire des sciences dans l'enseignement de la physique
title: avantages et inconvénients
titleType: Subtitle
Creators: name: Bendjama Faller, Rachel
Publisher: name: Unknown
Year: 0
Subjects: subject: histoire des sciences
subject: électromagnétisme
subject: expérience d’Oersted
subject: apprentissages
subject: motivation
subject: esprit scientifique

description: Ce travail porte sur les avantages et les inconvénients d’intégrer des notions d’histoire des sciences dans l’enseignement de la physique. Les auteurs ont choisi de comparer une approche historique et une approche d’investigation classique dans le cadre d’une séance de travaux pratiques dans deux classes de deuxième année de gymnase où ils enseignent la physique en tant que discipline fondamentale. L’objet de la séquence est l’expérience d’Oersted. Cette dernière montre la déviation de l'aiguille d'une boussole sous l'influence d'un courant électrique. Cette expérience marque l’avènement de l’électromagnétisme. L’objectif de la recherche est d’étudier l’impact d’une approche historique sur les apprentissages des élèves, ainsi que sur leur motivation. L’analyse des résultats relativement aux apprentissages montre qu’ils ne sont ni amoindris, ni améliorés par une telle approche. L’analyse des résultats relativement à la motivation des élèves montre que celle-ci est amplifiée par une telle approche pour une majorité des élèves. Intégrer des notions historiques dans les cours de physique aurait donc l’avantage d’offrir une variation supplémentaire des situations d’enseignement-apprentissage sans compromettre les apprentissages des élèves. Au cours de leurs recherches bibliographiques, il est apparu aux auteurs du présent mémoire que l’intégration de notions historiques dans les cours de physique s’insérait dans une démarche sur le long terme en vue de l’éducation à l’esprit scientifique. Les auteurs préconisent donc une utilisation récurrente et non ponctuelle des notions historiques dans les cours de physique.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Kriging based Surrogate Modeling for Fractional Order Control of Microgrids
Creators: name: Pan, Indranil
name: Das, Saptarshi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper investigates the use of fractional order (FO) controllers for a microgrid. The microgrid employs various autonomous generation systems like wind turbine generator (WTG), solar photovoltaic (PV), diesel energy generator (DEG) and fuel-cells (FC). Other storage devices like the battery energy storage system (BESS) and the flywheel energy storage system (FESS) are also present in the power network. An FO control strategy is employed and the FO-PID controller parameters are tuned with a global optimization algorithm to meet system performance specifications. A kriging based surrogate modeling technique is employed to alleviate the issue of expensive objective function evaluation for the optimization based controller tuning. Numerical simulations are reported to prove the validity of the proposed methods. The results for both the FO and the integer order (IO) controllers are compared with standard evolutionary optimization techniques and the relative merits and demerits of the kriging based surrogate modeling are discussed. This kind of optimization technique is not only limited to this specific case of microgrid control but also can be ported to other computationally expensive power system optimization problems.
description: 9 pages, 13 figures. appears in Smart Grid, IEEE Transactions on, 2014
Sharp complexity phase transitions generated by entanglement
Creators: name: Ghosh, Soumik
name: Deshpande, Abhinav
name: Hangleiter, Dominik
name: Gorshkov, Alexey V.
name: Fefferman, Bill
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Entanglement is one of the physical properties of quantum systems responsible for the computational hardness of simulating quantum systems. But while the runtime of specific algorithms, notably tensor network algorithms, explicitly depends on the amount of entanglement in the system, it is unknown whether this connection runs deeper and entanglement can also cause inherent, algorithm-independent complexity. In this work, we quantitatively connect the entanglement present in certain quantum systems to the computational complexity of simulating those systems. Moreover, we completely characterize the entanglement and complexity as a function of a system parameter. Specifically, we consider the task of simulating single-qubit measurements of $k$--regular graph states on $n$ qubits. We show that, as the regularity parameter is increased from $1$ to $n-1$, there is a sharp transition from an easy regime with low entanglement to a hard regime with high entanglement at $k=3$, and a transition back to easy and low entanglement at $k=n-3$. As a key technical result, we prove a duality for the simulation complexity of regular graph states between low and high regularity.
title: Un certificat unique, des examens différents
title: approche comparative de cinq épreuves certificatives écrites de français
titleType: Subtitle
Creators: name: Bauer, Michel
name: Rey, Antoine
Publisher: name: Unknown
Year: 0
Subjects: subject: alignement curriculaire
subject: alignement pédagogique
subject: épreuve certificative
subject: écrite de français
subject: évaluation, plan d’étude vaudois (PEV)

description: Les épreuves certificatives écrites de français sont-elles valables, équitables, fonctionnelles ? Analysant cinq épreuves réalisées en 2012 dans différents établissements scolaires vaudois, nous nous sommes efforcés de révéler les disparités d’une épreuve à l’autre, ce tant au niveau des exigences, qu’on niveau des objectifs visés ou encore des types de tâches. Chaque établissement ayant la possibilité d’élaborer les épreuves certificatives comme les enseignant-es qui y travaillent le désirent, nous avons cherché à savoir si l’alignement curriculaire doit primer sur l’alignement pédagogique. A la lumière de nos résultats, nous ne le pensons pas car toutes les épreuves, si elles étaient en adéquation avec le PEV, présentaient des touches personnelles importantes qu’il semble important de préserver pour que celles-ci demeurent cohérentes. Cependant, nous avons pu mettre en évidence une tendance dans les épreuves issues de collaborations à adopter de véritables critères, laissant une marge de manœuvre importante aux évaluateurs dans la définition des indicateurs. En revanche, les épreuves issues d’un seul établissement semblaient davantage évaluer des savoirs que des savoir-faire. Quant à savoir si les épreuves analysées étaient de véritables épreuves certificatives au sens où l’entend la docimologie, nous avons pu déceler deux tendances : l’une, plus présente dans les établissements collaborant, à demander aux élèves de faire étalage des savoirs accumulés par le biais de tâches complexes. L’autre, plus présente dans les établissements travaillant en autonomie, à proposer aux élèves des tâches portant davantage sur des savoirs spécifiques. À l’heure du changement de plan d’études et d’une mise en avant de l’importance d’épreuves externes pour évaluer les élèves (épreuves cantonales de référence), de telles réflexions nous semblent essentielles. Évaluer normativement permet-il de mieux évaluer les élèves ?
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Searching for Prompt and Long-Lived Dark Photons in Electro-Produced $e^+e^-$ Pairs with the Heavy Photon Search Experiment at JLab
Creators: name: Adrian, P. H.
name: Baltzell, N. A.
name: Battaglieri, M.
name: Bondi, M.
name: Boyarinov, S.
name: Bravo, C.
name: Bueltmann, S.
name: Butti, P.
name: Burkert, V. D.
name: Calvo, D.
name: Cao, T.
name: Carpinelli, M.
name: Celentano, A.
name: Charles, G.
name: Colaneri, L.
name: Cooper, W.
name: Cuevas, C.
name: D'Angelo, A.
name: Dashyan, N.
name: De Napoli, M.
name: De Vita, R.
name: Deur, A.
name: Diamond, M.
name: Dupre, R.
name: Egiyan, H.
name: Elouadrhiri, L.
name: Essig, R.
name: Fadeyev, V.
name: Field, C.
name: Filippi, A.
name: Freyberger, A.
name: Garcon, M.
name: Gevorgyan, N.
name: Girod, F. X.
name: Graf, N.
name: Graham, M.
name: Griffioen, K. A.
name: Grillo, A.
name: Guidal, M.
name: Herbst, R.
name: Holtrop, M.
name: Jaros, J.
name: Johnson, R. P.
name: Kalicy, G.
name: Khandaker, M.
name: Kubarovsky, V.
name: Leonora, E.
name: Livingston, K.
name: Marsicano, L.
name: Maruyama, T.
name: McCarty, S.
name: McCormick, J.
name: McKinnon, B.
name: Moffeit, K.
name: Moreno, O.
name: Camacho, C. Munoz
name: Nelson, T.
name: Niccolai, S.
name: Odian, A.
name: Oriunno, M.
name: Osipenko, M.
name: Paremuzyan, R.
name: Paul, S.
name: Randazzo, N.
name: Raydo, B.
name: Reese, B.
name: Rizzo, A.
name: Schuster, P.
name: Sharabian, Y. G.
name: Simi, G.
name: Simonyan, A.
name: Sipala, V.
name: Spellman, A.
name: Sokhan, D.
name: Solt, M.
name: Stepanyan, S.
name: Szumila-Vance, H.
name: Toro, N.
name: Uemura, S.
name: Ungaro, M.
name: Voskanyan, H.
name: Weinstein, L. B.
name: Wojtsekhowski, B.
name: Yale, B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Heavy Photon Search experiment (HPS) at the Thomas Jefferson National Accelerator Facility searches for electro-produced dark photons. We report results from the 2016 Engineering Run consisting of 10608/nb of data for both the prompt and displaced vertex searches. A search for a prompt resonance in the $e^+e^-$ invariant mass distribution between 39 and 179 MeV showed no evidence of dark photons above the large QED background, limiting the coupling of ε^2 {\geq} 10^-5, in agreement with previous searches. The search for displaced vertices showed no evidence of excess signal over background in the masses between 60 and 150 MeV, but had insufficient luminosity to limit canonical heavy photon production. This is the first displaced vertex search result published by HPS. HPS has taken high-luminosity data runs in 2019 and 2021 that will explore new dark photon phase space.
description: 28 pages, 46 figures
The Raunds Area Project: first interim report
Creators: name: Foard, Glenn R
name: Pearson, Terry
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 20, 3-21
description: Gives an introduction to the Project's objectives and scope, dealing with landscape history from early prehistoric to medieval, and then treats the sequence of Saxon and med pottery from the Furnells manor site in Raunds, with special attention to forming techniques.
Fontes de Informação da BVS para Rede Brasileira e do Caribe de informação em ciências da saúde (2018): Revisão e indexação de registros LILACS-Express e Marcação de registros para bases BVS (catalogação cooperativa)
Creators: name: BIREME/OPS/OMS
name: Suga, Sueli Mitiko Yano
name: Silva, Laís Aparecida
Publisher: name: Zenodo
Year: 2023
Subjects: Metodologia LILACS
Rede BVS
Capacitação profissional
Fontes de informação

description: Sessão 02 | 13 de Junho de 2018
 Tema: Revisão de descrição e indexação de registros bibliográficos com status LILACS-Express no FI-Admin
 Público alvo: Centros Cooperantes das redes LILACS e BVS Tema: Revisão e indexação de registros LILACS-Express e Marcação de registros para bases BVS (catalogação cooperativa)
Siga a Rede LILACS no Twitter: https://twitter.com/redelilacs
Enquête sur les habitudes alimentaires des élèves de 10ème H et 11ème H et évaluation de l'efficacité d'une séquence en alimentation, afin de mettre en place un programme de prévention
Creators: name: Marino, Mathieu
name: Merzaghi, Ludivine
Publisher: name: Unknown
Year: 0
Subjects: subject: prévention
subject: alimentation
subject: secondaire 1
subject: sciences
subject: enquête
subject: séquence d’enseignement

description: Afin de mieux connaître les habitudes alimentaires des élèves et réfléchir sur les éléments importants pour la mise en place d’un programme de prévention sur l’alimentation dans le cadre des cours de sciences. Nous avons demandé à une classe de 10H d’Aubonne et une classe de 11H du Belvédère de remplir un questionnaire sur les habitudes alimentaires. Nous avons également effectué une séquence d’enseignement en lien avec l’alimentation. Les élèves ont effectué une dégustation de fruits et légumes issus d’une culture Bio ou classique et ont dû exprimer leurs préférences et les critères selon lesquels ils choisissent leurs aliments. Les élèves ont ensuite à nouveau complété le questionnaire à deux reprises : 4 et 12 semaines après la séquence d’enseignement, afin d’observer d’éventuelles différences de comportement qui auraient pu être induites par notre enseignement et ensuite évaluer l’efficacité de la séquence dans l’optique de l’améliorer dans le futur. Il a été observé qu’une courte séquence d’enseignement sur l’alimentation n’avait que peu d’effet sur les élèves. Par contre, il a été possible de constater de nombreuses différences entre les élèves des deux établissements, en lien avec le milieu socio-économique et culturel. Il est alors important de tenir compte de ces différences lors de la mise en place d’un programme de prévention afin d’optimiser l’efficacité d’action de la séquence d’enseignement. Un programme de prévention sur un plus grand nombre de périodes serait souhaitable pour gagner en efficacité. Puisqu’il est difficilement envisageable de prendre 10 périodes de sciences pour traiter la prévention d’un seul sujet, il faudrait alors effectuer des collaborations et monter un programme en lien avec les cours de sport, de langues ou de cuisine, de manière à répartir les périodes de prévention sur plusieurs matières.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
High-rate GNSS data in seismic moment tensor inversion: application to anthropogenic earthquakes
Creators: name: Kudłacik, Iwona
name: Tymińska, Anna
name: Lizurek, Grzegorz
name: Kapłon, Jan
name: Paziewski, Jacek
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Earthquakes are traditionally monitored by seismic networks. However, the progress in high-rate Global Navigation Satellite Systems (GNSS) observations caused them to be included as a standard supplementary tool for strong natural earthquake monitoring. Here, we demonstrate that the displacement time series obtained with high-rate GNSS data can be included as a supplementary tool for the characterization of low-magnitude anthropogenic earthquakes to monitor the dangerous impact that such tremors may have on infrastructure. We analyzed two mining tremors with magnitudes of 3.7 and 4.0, respectively, and utilized the spectral amplitudes of seismic and high-rate GNSS observations in the seismic moment tensor calculation. Our study reveals that the high-rate GNSS time series can be successfully included in moment tensor calculations and might also be crucial if there is a lack of seismic data.
$μ$eV electron spectromicroscopy using free-space light
Creators: name: Auad, Yves
name: Dias, Eduardo J. C.
name: Tencé, Marcel
name: Blazit, Jean-Denis
name: Li, Xiaoyan
name: Zagonel, Luiz Fernando
name: Stéphan, Odile
name: Tizei, Luiz H. G.
name: de Abajo, F. Javier García
name: Kociak, Mathieu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The synergy between free electrons and light has recently been leveraged to reach an impressive degree of simultaneous spatial and spectral resolution, enabling applications in microscopy and quantum optics. However, the required combination of electron optics and light injection into the spectrally narrow modes of arbitrary specimens remains a challenge. Here, we demonstrate microelectronvolt spectral resolution in the nanoscale mapping of photonic modes with quality factors as high as 10$^4$. We rely on mode-matching of a tightly focused laser beam to whispering gallery modes to achieve a 10$^8$-fold increase in light-electron coupling efficiency. By adapting the shape and size of free-space optical beams to address specific physical questions, our approach allows us to interrogate any type of photonic structure with unprecedented spectral and spatial detail
Amos Tutuola and the Elusiveness of Completeness
Creators: name: Nyamnjoh, Francis B.
Publisher: name: Stichproben - Wiener Zeitschrift für kritische Afrikastudien / Vienna Journal of African Studies
Year: 2015

description: This paper is a contribution to the unfinished business of transformation of colonial and apartheid ideologies on being human and being African that continue to shape how research is conceptualized, taught and practiced in universities across Africa. Endogenous epistemologies such as depicted by Amos Tutuola in his writings, despite their popularity with ordinary Africans and with elite Africans especially in settings away from the scrutinising prescriptive gaze of their western and westernised counterparts, are mainly dormant or invisible in scholarly circles where they are often ignored, caricatured or misrepresented through problematic categories that are actively and uncritically internalised and reproduced by a Eurocentric modern intellectual elite. Africans immersed in popular traditions of meaning-making are denied the right to think and represent their realities in accordance with the civilisations and universes they know best. Often, the ways of life they cherish are labelled and dismissed too eagerly as traditional knowledge by some of the very African intellectual elite they look up to for protection. The paper makes a case for space to be created for such sidestepped traditions of knowledge. It draws attention to Africa’s possibilities, prospects and emergent capacities for being and becoming in tune with its creativity and imagination. It speaks to the ‘frontier African’ at the crossroads and junctions of encounters, facilitating creative conversations and challenging regressive logics of exclusionary identities. The paper uses Tutuola’s stories to question dualistic assumptions about reality and scholarship, and to call for conviviality, interconnections and interdependence between competing knowledge traditions in Africa.
Vortex arrays in a rotating superfluid He-4 nanocylinder
Creators: name: Ancilotto, Francesco
name: Pi, Marti
name: Barranco, Manuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Within Density Functional theory, we investigate stationary many-vortex structures in a rotating $^4$He nanocylinder at zero temperature. We compute the stability diagram and compare our results with the classical model of vortical lines in an inviscid and incompressible fluid. Scaling the results to millimeter-size buckets, they can be compared with experiments on vortex arrays conducted in the past. Motivated by recent experiments that have used atomic impurities as a means of visualizing vortices in superfluid $^4$He droplets, we have also considered the formation of chains of xenon atoms along a vortex line and the interaction between xenon atoms inside the same vortex and on different neighboring vortex lines.
Quantum Induced Coherence Light Detection and Ranging
Creators: name: Qian, Gewei
name: Xu, Xingqi
name: Zhu, Shun-An
name: Xu, Chenran
name: Gao, Fei
name: Yakovlev, V. V.
name: Liu, Xu
name: Zhu, Shi-Yao
name: Wang, Da-Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum illumination has been proposed and demonstrated to improve the signal-to-noise ratio (SNR) in light detection and ranging (LiDAR). When relying on coincidence detection, such a quantum LiDAR is limited by the response time of the detector and suffers from jamming noise. Inspired by the Zou-Wang-Mandel experiment, we design, construct and validate a quantum induced coherence (QuIC) LiDAR which is inherently immune to ambient and jamming noises. In traditional LiDAR the direct detection of the reflected probe photons suffers from deteriorating SNR for increasing background noise. In QuIC LiDAR we circumvent this obstacle by only detecting the entangled reference photons, whose single-photon interference fringes are used to obtain the distance of the object, while the reflected probe photons are used to erase path information of the reference photons. In consequence, the noise accompanying the reflected probe light has no effect on the detected signal. We demonstrate such noise resilience with both LED and laser light to mimic the background noise and jamming attack. The proposed method paves a new way of battling noise in precise quantum electromagnetic sensing and ranging.
description: 6 pages, 4 figures
Sustainable managment of stormwater in a changing environment under Mediterranean climate conditions
Creators: name: Mobilia, Mirka
Publisher: name: Universita degli studi di Salerno
Year: 2018
Subjects: subject: ICAR/02 COSTRUZIONI IDRAULICHE E MARITTIME E IDROLOGIA
subject: Green roofs
subject: Evapotranspiration
subject: Runoff

description: 2016 - 2017
description: The problem of the increase in the magnitude and frequency of flooding events in urban areas can be approached by means of techniques of sustainable urban stormwater management. In this PhD dissertation, the effectiveness of one of these technologies namely the green roof (GR), has been investigated. For this purpose, a daily scale hydrological model for GRs, mainly based on meteorological data and with three levels of complexity has been proposed. Since, the evapotranspiration (ET) fluxes impact the GR retention performances, a study of the dynamics involved in ET process has been carried out. The use of green roofs technology in Mediterranean climate is very limited so two GR experimental benches has been placed in the campus of University of Salerno and preliminary results about the hydrological performances depending on the climate and constructions characteristics have been illustrated. Subsequently, the effectiveness of the proposed technology for the sustainable urban drainage management have been tested at a large scale and Sarno peri-urban basin has been presented as case study since it represents a hydrogeological hazard prone system. The analysis focused on the potential hydrological benefits in terms of peak runoff, peak delay and volume runoff in respect of several hypothetical scenarios of rainfall and GR retrofitting percentage. In high urbanized areas, the implementation of GRs at basin scale, allows a reduction of runoff rainwater from roofs close to 100% for some rainfall and greening scenarios. Where the GR retrofit potential is very low, satisfactory performances in terms of water management can be reached coupling this green technology to other sustainable techniques. [edited by Author]
Archaeology at Grendon Quarry, Northamptonshire, Part 1: Neolithic and Bronze Age sites excavated in 1974-
Creators: name: Gibson, Alex M
name: McCormick
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 20, 23-66
description: A rectangular mortuary enclosure with façade (a square barrow) was associated with a group of thirty-seven Grimston ware vessels and some wares related to Mildenhall type, with some Beaker. A Bronze Age pit complex and six ring ditches, some originally with mounds, also appear funerary. The site, in a woodland clearing, is discussed in its Nene Valley context, with reports on the environmental evidence, inhumations and cremations, and animal bones.
An Early Iron Age and Beaker site near Gretton, Northamptonshire
Creators: name: Jackson, Dennis A
name: Knight, David
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 20, 67-86
description: Three Beaker pits, an Early Iron Age track alongside a palisade, and an Early Iron Age settlement with posthole settings in an oval and a four-post array, were excavated in 1978-9 The linear ditches produced an exceptionally rich assemblage of pottery and other refuse.
Iron Age and Roman settlement at Ashley, Northants
Creators: name: Taylor, Steven J
name: Dix
Publisher: name: Archaeology Data Service
Year: 2020

description: Northamptonshire Archaeology, 20, 87-111
description: Excavations in 1963 and 1966 revealed an Iron Age enclosed settlement of circular buildings, probably for mixed farming, and pottery with curvilinear decoration. During second half 1st century this settlement was succeeded by a flimsy romanized building nearby. A series of stone-based Roman agricultural buildings, including a long barn with massive circular stone post-bases along its spine, was built over the earlier settlement. A bronze-melting hearth followed, set among rubble. Mosaic debris points to late Roman modifications nearby.