cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
3D stochastic interferometer detects picometer deformations and minute dielectric fluctuations of its optical volume
Creators: name: Graciani, Guillaume
name: Filoche, Marcel
name: Amblard, Francois
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical interferometry has proven extremely powerful to investigate some of the most fundamental laws of physics, using light with very precisely controlled geometry. In the past few decades, various speckle metrology methods have emerged to harness the interferometric properties of strongly disordered light instead, using time-domain analysis of speckle patterns at a maximum rate limited by the frequency of image acquisition. The present work is based on using a centimeter-sized quartz-powder cavity with an arbitrary shape that is engineered with very high Lambertian reflectivity. When filled with a coherent monochromatic photon gas, a statistically isotropic and homogeneous 3D speckle interference pattern is obtained. A single-mode fiber is then used in combination with photon number autocorrelation analysis to detect minute changes of the speckle decorrelation spectrum, caused either by cavity deformations or fluctuations of the dielectric tensor field inside. The decorrelation spectrum is acquired over 8 to 10 frequency decades below 100 MHz, with a sensitivity that is only limited by the intrinsic photon statistics and the extrinsic instrumental noises. With typically 1700 reflections and an average photon transit path length of 62m, our 3D stochastic interferometer yields a typical finesse of 10500, and cavity deformations are detected in an ergodic fashion over a six-decade dynamic range with a power noise floor of 4x{10}^{-3} pm^2 which corresponds to 2.7 pm at 1 kHz. The cavity also operates as a speckle fluctuation amplifier that reveals decorrelation spectra due to picometric thermal motions of colloids in both single and multiple scattering regimes with a typical 100-fold sensitivity gain compared to conventional light scattering techniques.
description: 12 pages main, 27 pages with annex, 4 figures
Quantum steering with vector vortex photon states with the detection loophole closed
Creators: name: Slussarenko, Sergei
name: Joch, Dominick J.
name: Tischler, Nora
name: Ghafari, Farzad
name: Shalm, Lynden K.
name: Verma, Varun B.
name: Nam, Sae Woo
name: Pryde, Geoff J.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Quantum information
subject: Quantum optics
subject: Qubits
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Violating a nonlocality inequality enables the most powerful remote quantum information tasks and fundamental tests of quantum physics. Loophole-free photonic verification of nonlocality has been achieved with polarization-entangled photon pairs, but not with states entangled in other degrees of freedom. Here we demonstrate completion of the quantum steering nonlocality task, with the detection loophole closed, when entanglement is distributed by transmitting a photon in an optical vector vortex state, formed by optical orbital angular momentum (OAM) and polarization. As well as opening up a high-efficiency encoding beyond polarization, the critically important demonstration of vector vortex steering opens the door to new free-space and satellite-based secure quantum communication devices and device-independent protocols.
Complements on disconnected reductive groups
Creators: name: Digne, F.
name: Michel, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We present various results on disconnected reductive groups, in particular about the characteristic 0 representation theory of such groups over finite fields.
description: This version takes into account improvements suggested by G. Malle
Integrating GPU libraries for fun and profit
Creators: name: Oeftiger, Adrian
Publisher: name: Zenodo
Year: 2020

description: I have a high-performance number crunching tool with cool physics which simulates long-term on a GPU -- how can I extend the inner loop by further cool physics, injected from the outside?
 In python this should be easy, right? But wait... we are sitting on device memory? In this talk we explore how to tightly couple two libraries for high-performance computation of long-term beam dynamics, SixTrackLib and PyHEADTAIL. How can we design the \emph{interface} between both libraries in terms of (1) remaining on the python level, (2) avoid losing performance due to device-to-host-to-device copies, and (3) keeping both libraries as stand-alone packages? The interface can be surprisingly simple, yet fully fledged... Let's go!
The Women of Senegal
Creators: name: Barsanti, Amy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023
Subjects: Women
Senegal
Economy

description: Students will examine the roles of women in contemporary Senegal, including but not exclusive to family and economy. They will compare and contrast what they know about the
roles of women in their own community, region, state, and country with comparable areas in Senegal.
Handmade Art: Furniture
Creators: name: Rovine, Vicky
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023
Subjects: Senegal
Furniture making

description: Students will learn about a rural furniture workshop, led by Saliou Thiaou in his home town of Palo. They will also learn about the work of Oumane Mbaye, a Senegalese artist/designer in Dakar who creates furniture out of already existing materials, like metal containers and pipes. Each of these types of furniture uses different materials, and are sold in different ways. But both illustrate how artists turn inspiration into products. Students will use what they learn to create their own pieces.
Souwere in Senegal (Sous-Verre)
Creators: name:  Sewall, Stacey
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023
Subjects: Sous-verre
Glass painting and staining
Senegal

description: Sous-verre means “under glass” in French. The Wolof word for the technique is Souwere. This technique is also known as "reverse glass painting," because in this form of art, the artist paints on the back of a piece of glass, and paints the image in reverse order. Facial expressions and details are painted on first, and background scenes are applied last, with drying time in between each layer. This lesson plan teaches this art form through the lens of Senegalese culture. Students will use substitutes for glass such as acetate sheets or transparency paper to create a souwere (sous-verre) of their own.
Cavity-enhanced optical lattices for scaling neutral atom quantum technologies to higher qubit numbers
Creators: name: Park, A. J.
name: Trautmann, J.
name: Šantić, N.
name: Klüsener, V.
name: Heinz, A.
name: Bloch, I.
name: Blatt, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of-the-art free space lattices. Our two-dimensional optical lattices are created by power enhancement cavities with large mode waists of 489(8) $μ$m and allow us to trap ultracold strontium atoms at a lattice depth of 60 $μ$K by using only 80 mW of input light per cavity axis. We characterize these lattices using high-resolution clock spectroscopy and resolve carrier transitions between different vibrational levels. With these spectral features, we locally measure the lattice potential envelope and the sample temperature with a spatial resolution limited only by the optical resolution of the imaging system. The measured ground-band and trap lifetimes are 18(3) s and 59(2) s, respectively, and the lattice frequency (depth) is long-term stable on the MHz (0.1\%) level. Our results show that large, deep, and stable two-dimensional cavity-enhanced lattices can be created at any wavelength and can be used to scale up neutral-atom-based quantum simulators, quantum computers, sensors, and optical lattice clocks.
description: 18 pages, 10 figures
Using concept maps to evaluate preservice biology teachers’ conceptualization of COVID-19 as a complex phenomenon
Creators: name: Bielik, Tom
name: Jagemann, Johannes
name: Krell, Moritz
name: Krüger, Dirk
name: Assaraf, Orit Ben Zvi
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: systems thinking (ST)
subject: complexity
subject: concept map (CM)
subject: COVID-19
subject: preservice biology teachers
subject: 300 Sozialwissenschaften::370 Bildung und Erziehung::370 Bildung und Erziehung

description: Introduction: The COVID-19 pandemic showed the critical importance of supporting teachers’ and students’ systems thinking when making sense of complex phenomena. This study sets to explore preservice biology teachers’ (PBTs) mental models of COVID-19 as complex phenomenon using concept maps. Methods: 27 PBTs concept maps of COVID-19 outbreak were collected and taken for analysis. Structural and complexity attributes were identified in participants’ concept maps and the relationships between them were tested, providing statistical analyses using exemplary concept maps. Results: The results suggest that the appearance of many concepts in a map (structural attribute) does not necessarily indicate high level of complexity, but rather the amount of simple structural relationships (complexity attribute). On the other hand, the results indicate that higher structural sophistication (e.g., high number of connections and junctions) could be associated with the complexity level of the map. Discussion: This study provides a practical method for evaluating the complexity level of PBTs’ systems thinking, suggests a possible link between structural and complexity attributes in their concept maps, and demonstrates the need to further support PBTs in developing their systems thinking skills in the context of complex biological phenomena.
Newton-Type Methods For Simultaneous Matrix Diagonalization
Creators: name: Khouja, Rima
name: Mourrain, Bernard
name: Yakoubsohn, Jean-Claude
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper proposes a Newton-type method to solve numerically the eigenproblem of several diagonalizable matrices, which pairwise commute. A classical result states that these matrices are simultaneously diagonalizable. From a suitable system of equations associated to this problem, we construct a sequence that converges quadratically towards the solution. This construction is not based on the resolution of a linear system as is the case in the classical Newton method. Moreover, we provide a theoretical analysis of this construction and exhibit a condition to get a quadratic convergence. We also propose numerical experiments, which illustrate the theoretical results.
description: Calcolo, Springer Verlag, 2022
Integrative transcription start site identification with iTiSS
Creators: name: Jürges, Christopher S.
name: Dölken, Lars
name: Erhard, Florian
Publisher: name: Zenodo
Year: 2020

description: Here we present all our data and scripts necessary to reproduce all our figures and tables for our publication of iTiSS. Each folder includes a start.bash file, which can be executed to run all scripts in its and its subdirectory folders. Those start.bash files include detail comments on each script executed. To prevent any legal problems, the other tools tested are not included in this upload and need to be downloaded separately (see start.bash file in the programs-folder for instructions).
Différences Finies Explicites Centrées pour la Discrétisation de l'équation de Schrödinger 1D indépendante du temps
Creators: name: NABADIATA MBALA Pierre
Publisher: name: Zenodo
Year: 2024

description: Le présent article discrétise l’équation de Schrödinger 1D indépendante du temps à l’aide de Différences Finies Explicites dans un espace unidimensionnel discret. La discrétisation de l’équation de Schrödinger est une technique numérique permettant de résoudre l’équation dans un espace discret. Après discrétisation, l’équation de Schrödinger est écrite sous forme algébrique, c’est-à-dire un système linéaire. En utilisant ce système, l’équation peut être réécrite sous forme matricielle.
Optimal Design for Purcell Three-link Swimmer
Creators: name: Giraldi, Laetitia
name: Martinon, Pierre
name: Zoppello, Marta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper we address the question of the optimal design for the Purcell 3-link swim-mer. More precisely we investigate the best link length ratio which maximizes its displace-ment. The dynamics of the swimmer is expressed as an ODE, using the Resistive Force Theory [13]. Among a set of optimal strategies of deformation (strokes), we provide an asymptotic estimate of the displacement for small deformations, from which we derive the optimal link ratio. Numerical simulations are in good agreement with this theoretical esti-mate, and also cover larger amplitudes of deformation. Compared with the classical design of the Purcell swimmer, we observe a gain in displacement of roughly 60%.
The ABCs of Senegal
Creators: name: Barsanti, Amy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2023
Subjects: Culture
Senegal

description: Students will explore images from in and around Dakar, drawing conclusions, adjusting misconceptions, and diving deeper into Senegalese culture in grade level appropriate ways. The goal is for students to learn about Senegal while
honing their observational skills and vocabulary, and to actively participate in inquiry-based Social Studies.
Multilevel Hierarchical Kernel Spectral Clustering for Real-Life Large Scale Complex Networks
Creators: name: Mall, Raghvendra
name: Langone, Rocco
name: Suykens, Johan A. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Kernel spectral clustering corresponds to a weighted kernel principal component analysis problem in a constrained optimization framework. The primal formulation leads to an eigen-decomposition of a centered Laplacian matrix at the dual level. The dual formulation allows to build a model on a representative subgraph of the large scale network in the training phase and the model parameters are estimated in the validation stage. The KSC model has a powerful out-of-sample extension property which allows cluster affiliation for the unseen nodes of the big data network. In this paper we exploit the structure of the projections in the eigenspace during the validation stage to automatically determine a set of increasing distance thresholds. We use these distance thresholds in the test phase to obtain multiple levels of hierarchy for the large scale network. The hierarchical structure in the network is determined in a bottom-up fashion. We empirically showcase that real-world networks have multilevel hierarchical organization which cannot be detected efficiently by several state-of-the-art large scale hierarchical community detection techniques like the Louvain, OSLOM and Infomap methods. We show a major advantage our proposed approach i.e. the ability to locate good quality clusters at both the coarser and finer levels of hierarchy using internal cluster quality metrics on 7 real-life networks.
description: PLOS ONE, Vol 9, Issue 6, June 2014
Rotational excitation of H$_3$O$^+$ cations by para-H$_2$: improved collisional data at low temperatures
Creators: name: Demes, S.
name: Lique, François
name: Faure, Alexandre
name: van der Tak, Floris
name: Rist, Claire
name: Hily-Blant, Pierre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The hydronium cation plays a crucial role in interstellar oxygen and water chemistry. While its spectroscopy was extensively investigated earlier, the collisional excitation of H$_3$O$^+$ is not well studied yet. In this work we present state-to-state collisional data for rotational de-excitation of both ortho- and para-H$_3$O$^+$ due to para-H$_2$ impact. The cross sections are calculated within the close-coupling formalism using our recent, highly accurate rigid-rotor potential energy surface for this collision system. The corresponding thermal rate coefficients are calculated up to 100 K. For para-H$_3$O$^+$ the lowest 20 rotation-inversion states were considered in the calculations, while for ortho-H$_3$O$^+$ the lowest 11 states are involved (up to $j\leq5$), so all levels with rotational energy below 420 K (292 cm$^{-1}$) are studied. In order to analyse the impact of the new collisional rates on the excitation of H$_3$O$^+$ in astrophysical environments radiative transfer calculations are also provided. The most relevant emission lines from an astrophysical point of view are studied, taking into account the transitions at 307, 365, 389 and 396 GHz. We show that our new collisional data have a non-negligible impact (from a few percents up to about a factor of 3) on the brightness and excitation temperatures of H$_3$O$^+$, justifying the revision of the physical conditions in the appropriate astrophysical observations. The calculated rate coefficients allow one to recalculate the column density of hydronium in interstellar clouds, which can lead to a better understanding of interstellar water and oxygen chemistry.
The Confusion of Diverse Voices: Musical and Social Polyphony in Seventeenth-Century French Opera
Creators: name: Welch, Ellen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: This essay explores how two early modern French writers considered choral music in opera as a figure for society. Pierre Corneille, in his musical tragedy “Andromède,” and scientist and critic Claude Perrault, in several texts about music and acoustics, made subtle apologies for the polyphonic choral song condemned by many contemporaries as unintelligible. Beyond defending the aesthetic value of choral music, Corneille and Perrault associated multi-part song with collective vocalizations offstage, in the real world. Their instructions on how to appreciate choral interludes in opera also served, therefore, to train listeners to attend to the polyphony of society.
Resource-Efficient Federated Learning
Creators: name: Abdelmoniem, Ahmed M.
name: Sahu, Atal Narayan
name: Canini, Marco
name: Fahmy, Suhaib A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Federated Learning (FL) enables distributed training by learners using local data, thereby enhancing privacy and reducing communication. However, it presents numerous challenges relating to the heterogeneity of the data distribution, device capabilities, and participant availability as deployments scale, which can impact both model convergence and bias. Existing FL schemes use random participant selection to improve fairness; however, this can result in inefficient use of resources and lower quality training. In this work, we systematically address the question of resource efficiency in FL, showing the benefits of intelligent participant selection, and incorporation of updates from straggling participants. We demonstrate how these factors enable resource efficiency while also improving trained model quality.
description: Accepted to appear in ACM EuroSys 2023
The 50 technological platforms of RnMSH, a national research infrastructure in Humanities and Social Sciences
Creators: name: Chelini, Chiara
name: Thély, Nicolas
name: Wolikow, Serge
name: Vigreux, Jean
Publisher: name: Zenodo
Year: 2023

description: The National network of Houses for the Social Sciences and Humanities (RnMSH) and its 22 houses (MSH) supports scholars in the social sciences and humanities (SHS), with an emphasis on interdisciplinarity and project-based research. The RnMSH plays an important role in the development and practice of interdisciplinarity, as well as in the structuring research engineering in France. The Houses for the Social Sciences and Humanities are a hub for strong partnerships between universities, research institutions (in particular the national center for scientific research -CNRS) and public bodies. The RnMSH in a few dates : 2006 Creation of the GIS (scientific interest group) – RnMSH, supported by the CNRS and 19 French universities. 2012 Network registered in the roadmap of the Ministry for Higher Education and Research as a research infrastructure in social sciences and humanities (IR), in the domain of scientific and technical information (IST). 2016 RnMSH renewed as a research infrastructure. 2019 Updated RnMSH charter, under the auspices of the CNRS and the Conference of University Presidents (CPU), with the collaboration of MSH and within the framework of the Athena Alliance. 2021 RnMSH renewed as a research infrastructure in social sciences and humanities on the roadmap of the French ministry of scientific research. The national network of Houses for the Social Sciences and Humanities RnMSH brings together five technological platform networks, based in the houses, which develop collaborations with the Very Large Research Infrastructures (IR*) Huma-Num and Progedo and which federate about 50 platforms based on the houses : Spatio: resources for spatial data analysis, imagery and 3D. Scripto: written data, from literary texts to contemporary world archives, including music scores. Audio-visio: audio and visual resources and corpus, from ethnological documentaries to filmed conferences. Cogito: equipment for research in cognitive sciences, and data from these experiments. Data: corpus of quantitative data and quantitatively analyzed data.
description: 4 one year job contracts making investigation about RnMSH platforms networks have been financed by the French ministry of research (Ministère de l'enseignement supérieur et de la recherche). Two permanent research engineers working at RnMSH are employed by CNRS (the French national center of scientific research). French universities finance the houses of social sciences and humanities (MSH) via their staff.
Foundations of Transaction Fee Mechanism Design
Creators: name: Chung, Hao
name: Shi, Elaine
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Theoretical Economics (econ.TH)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: In blockchains such as Bitcoin and Ethereum, users compete in a transaction fee auction to get their transactions confirmed in the next block. A line of recent works set forth the desiderata for a "dream" transaction fee mechanism (TFM), and explored whether such a mechanism existed. A dream TFM should satisfy 1) user incentive compatibility (UIC), i.e., truthful bidding should be a user's dominant strategy; 2) miner incentive compatibility (MIC), i.e., the miner's dominant strategy is to faithfully implement the prescribed mechanism; and 3) miner-user side contract proofness (SCP), i.e., no coalition of the miner and one or more user(s) can increase their joint utility by deviating from the honest behavior. The weakest form of SCP is called 1-SCP, where we only aim to provide resilience against the collusion of the miner and a single user. Sadly, despite the various attempts, to the best of knowledge, no existing mechanism can satisfy all three properties in all situations. Since the TFM departs from classical mechanism design in modeling and assumptions, to date, our understanding of the design space is relatively little. In this paper, we further unravel the mathematical structure of transaction fee mechanism design by proving the following results: - Can we have a dream TFM? - Rethinking the incentive compatibility notions. - Do the new design elements make a difference?
Fictions of the Courtly Self: French Ballet in the Age of Louis XIV
Creators: name: Welch, Ellen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Court ballet after the Fronde has been understood as a technique for subjugating nobles, literally and metaphorically keeping them dancing in the monarch's orbit. This essay reconsiders ballet's role in fabricating aristocratic identities under Louis XIV through a reading of the performances of two celebrated English dancers (the Dukes of York and Buckingham) in the Ballet royal de la nuit (1653). These performers' status as outsiders and as court celebrities with well-known personalities highlights the dancers’ influence over the roles they incarnated on the ballet stage. The body types and especially the self-fashioned social personas of performers were the raw material to which court artists added costume, choreography, and poetic text to create ballet characters. Dancers therefore acted as implicit collaborators in creating their onstage personas. Drawing upon Performance Studies' re-interrogation of the dynamics of subjection and agency in embodied practices, the analysis of the English dancers' unique case allows us to speculate about the degree of autonomy afforded to all noble performers and, more broadly, to consider how ballet expresses the mutual interdependence of sovereigns and nobles in court society.
Liver Health Matters: How Alcohol-Induced Hepatotoxicity Can Impact Your Overall Well-Being
Creators: name: Oluwaseyi, Idowu
Publisher: name: figshare
Year: 2023
Subjects: Other biomedical and clinical sciences not elsewhere classified

description: Your liver is one of the most vital organs in your body, responsible for detoxifying harmful substances and processing nutrients. It is the second-largest organ in your body, and it performs over 500 different functions. Some of these include the production of bile, which helps in the digestion of fats, the breakdown of carbohydrates, and the storage of vitamins and minerals. However, excessive alcohol consumption can lead to a condition known as alcohol-induced hepatotoxicity, which can have serious consequences for your overall health and well-being.
Ταπεινή ηγεσία και ψυχολογικό συμβόλαιο
Creators: name: Κολοβού, Χαρίκλεια
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Ταπεινή ηγεσία
subject: Ηγέτες
subject: Ψυχολογικό συμβόλαιο
subject: Παραβίαση συμβολαίου

description: Η ηγεσία αποτελεί ένα ερευνητικό αντικείμενο που απασχολεί ιδιαίτερα τα τελευταία χρόνια, την επιστημονική κοινότητα. Υπάρχουν διάφορες μορφές ηγεσίας ωστόσο στην παρούσα εργασία θα ασχοληθούμε με αυτή της ταπεινής ηγεσίας η οποία βιβλιογραφικά δεν έχει διερευνηθεί σε σημαντικό βαθμό. Ουσιαστικά η ταπεινή ηγεσία αναφέρεται σε διαπροσωπικά χαρακτηριστικά ενός ηγέτη που βλέπει τον εαυτό του με ακρίβεια και αλληλοεπιδρά με τους εργαζόμενους που έχει υπό την επίβλεψή του με σεβασμό, επιείκεια και επιθυμία μεταλαμπάδευσης γνώσεων. Από την άλλη πλευρά, το ψυχολογικό συμβόλαιο αποτελεί ένα από τα σημαντικότερα ερευνητικά αντικείμενα για τους ερευνητές εδώ και πολλά χρόνια. Το ψυχολογικό συμβόλαιο επηρεάζει το πώς σκέφτονται, αισθάνονται και συμπεριφέρονται τα μέλη και οι ηγέτες των επιχειρήσεων, παρέχοντας έτσι τη βάση για συντονισμό και τη συνεργασία μεταξύ εργαζομένων, διευθυντών, στελεχών και ιδιοκτητών επιχειρήσεων. Πιο συγκεκριμένα, αποτελούν έναν από τους σημαντικότερους παράγοντες δέσμευσης του ανθρώπινου δυναμικού με το εργασιακό του περιβάλλον και η διάρρηξη του είναι επιζήμια και για τον εργαζόμενο αλλά και για την επιχείρηση. Στην παρούσα εργασία θα μελετήσουμε την έννοια της ταπεινής ηγεσίας, τα χαρακτηριστικά των ταπεινών ηγετών και τους τρόπους που αυτή εφαρμόζεται στις σύγχρονες επιχειρήσεις και στα αποτελέσματα που επιφέρει. Επιπλέον την σημαντικότητα του ψυχολογικού συμβολαίου στην αποτελεσματικότητα και αποδοτικότητα των ανθρώπινων πόρων και της επιχείρησης. Τέλος θα παρουσιαστεί η συσχέτιση και η επίδραση της ταπεινής μορφής ηγεσίας στο ψυχολογικό συμβόλαιο.
Entanglement Entropy of Non-Unitary Integrable Quantum Field Theory
Creators: name: Bianchini, Davide
name: Castro-Alvaredo, Olalla A.
name: Doyon, Benjamin
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we study the simplest massive 1+1 dimensional integrable quantum field theory which can be described as a perturbation of a non-unitary minimal conformal field theory: the Lee-Yang model. We are particularly interested in the features of the bi-partite entanglement entropy for this model and on building blocks thereof, namely twist field form factors. Non-unitarity selects out a new type of twist field as the operator whose two-point function (appropriately normalized) yields the entanglement entropy. We compute this two-point function both from a form factor expansion and by means of perturbed conformal field theory. We find good agreement with CFT predictions put forward in a recent work involving the present authors. In particular, our results are consistent with a scaling of the entanglement entropy given by $\frac{c_{\text{eff}}}{3}\log \ell$ where $c_{\text{eff}}$ is the effective central charge of the theory (a positive number related to the central charge) and $\ell$ is the size of the region. Furthermore the form factor expansion of twist fields allows us to explore the large region limit of the entanglement entropy and find the next-to-leading order correction to saturation. We find that this correction is very different from its counterpart in unitary models. Whereas in the latter case, it had a form depending only on few parameters of the model (the particle spectrum), it appears to be much more model-dependent for non-unitary models.
description: 48 pages, 15 figures. Minor typos corrected
Nuestro norte és el Sur: Vivência de Estágio Eletivo da Residência de Saúde Coletiva no Sistema de Saúde do Uruguai
Creators: name: Palmeira, Flaviano Santos
Publisher: name: figshare
Year: 2022
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: Esse estudo tem como objetivo analisar minha vivência enquanto residente brasileiro no sistema de saúde pública do Uruguai e, assim, contribuir para uma reflexão da área no sentido do fortalecimento de sua produção, e, ainda, estimular outros profissionais em processo de formação a realizarem intercâmbio na América Latina. Trata-se de um estudo qualitativo de inspiração cartográfica, com uso de mapa analítico. O cenário do estudo foram os processos formativos em saúde, durante as experiências no programa de Residência Multiprofissional em Saúde Coletiva da Prefeitura da Cidade do Recife e no intercâmbio vivenciado no Sistema de Saúde Pública na Cidade de Montevidéu-Uruguai .A elaboração desse artigo seguiu em três etapas, a saber: a) revisitar os diários de campo contendo elementos das atividades e experiências vivenciadas, b) problematização dos conteúdos que foram mais significativos, que apontavam para vivências significativas; que culminaram na construção de mapa analítico, contendo três planos ou platôs - momento de preparação, chegada ao território e trocas-, e d) a análise de inspiração cartográfica do mapa, com escolha dos conceitos-ferramenta com a e produção do texto. Para o desenvolvimento e reflexão dos escritos, utilizo alguns conceitos que fui me aproximando durante minhas caminhadas formativas, são eles: Formação e Educação Permanente em Saúde articulados à Micropolítica e gestão do cuidado em saúde, com destaque para conceitos de afecção e desterritórialização. Experiências como essa reforça a importância da aproximação e integração de estudantes e trabalhadores a estarem vivenciando outros processos formativos de produções de cuidado, principalmente no cenário latino-americano, garantindo a ampliação das trocas de saberes e produzindo novos olhares. São nesses encontros, com o outro e outras, que podemos convocar em nós a possibilidade de aprender e produzir coisas novas.
Ocean Mover's Distance: Using Optimal Transport for Analyzing Oceanographic Data
Creators: name: Hyun, Sangwon
name: Mishra, Aditya
name: Follett, Christopher L.
name: Jonsson, Bror
name: Kulk, Gemma
name: Forget, Gael
name: Racault, Marie-Fanny
name: Jackson, Thomas
name: Dutkiewicz, Stephanie
name: Müller, Christian L.
name: Bien, Jacob
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62P12, 86-10

description: Remote sensing observations from satellites and global biogeochemical models have combined to revolutionize the study of ocean biogeochemical cycling, but comparing the two data streams to each other and across time remains challenging due to the strong spatial-temporal structuring of the ocean. Here, we show that the Wasserstein distance provides a powerful metric for harnessing these structured datasets for better marine ecosystem and climate predictions. Wasserstein distance complements commonly used point-wise difference methods such as the root mean squared error, by quantifying differences in terms of spatial displacement in addition to magnitude. As a test case we consider Chlorophyll (a key indicator of phytoplankton biomass) in the North-East Pacific Ocean, obtained from model simulations, in situ measurements, and satellite observations. We focus on two main applications: 1) Comparing model predictions with satellite observations, and 2) temporal evolution of Chlorophyll both seasonally and over longer time frames. Wasserstein distance successfully isolates temporal and depth variability and quantifies shifts in biogeochemical province boundaries. It also exposes relevant temporal trends in satellite Chlorophyll consistent with climate change predictions. Our study shows that optimal transport vectors underlying Wasserstein distance provide a novel visualization tool for testing models and better understanding temporal dynamics in the ocean.
description: 6 figures
The Two Faces of the ‘Global Right’: Revolutionary Conservatives and National-Conservatives
Creators: name: Varga, Mihai
name: Buzogány, Aron
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: fascism
subject: ideology
subject: nationalism
subject: conservatism
subject: global right
subject: New Right
subject: sociology of knowledge
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: Studies of the Global Right usually trace its intellectual underpinnings to the revolutionary conservative New Right and its ideas claiming to defend an ‘ethno-pluralist’ European identity from the multiculturalist threat of a ‘Great Replacement’ through immigration. A second lineage, which we refer to as ‘national-conservative’, is less explored and is more concerned with threats to moral order and the loss of moral bearing due to liberalism’s relativism. These two intellectual lineages, and corresponding political alignments, engender different political projects of the Global Right, which is not that coherent as it seems. Taking a long-term historical-ideational perspective that underlines the power of ideologies as templates, we argue that a closer look at the different intellectual traditions of the Global Right can help explain the contrasting political preferences for socio-economic action, institution-building and transnational cooperation.
La critique des spectacles par les diplomates au XVIIe siècle
Creators: name: Welch, Ellen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This article seeks to examine the diplomatic archive as a rich source for the study of seventeenth-century dramatic criticism. Ambassadors and other foreign ministers made up a privileged sector of the audience for theatrical entertainments staged in European courts and capitals. Documenting their experiences of spectatorship, diplomats’ official correspondence particularly highlights the centrality of sociability in discussions of theater in this period.
Multi-Sensory HMI for Human-Centric Industrial Digital Twins: A 6G Vision of Future Industry
Creators: name: Han, Bin
name: Schotten, Hans D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The next revolution of industry will turn the industries as well as the entire society into a human-centric shape. The human presence in industrial environment and the human participation in industrial processes will be magnified more than ever before. To cope with the emerging challenges raised by this revolution, 6G ambitions to bridge the three domains of digital information, physical assets and humans into one merged cyber-physical-human world. This proposes not only an unprecedented demand for digital twin solutions, but also new technical requirements. Especially, aiming at a human-centric industrial DT system, novel multi-sensory human-machine interfaces will play a key role in this paradigm shift.
description: Accepted by SMS 2022 (submitted there after last version rejected by EuCNC 2022)
Generation and decay of persistent current in a toroidal Bose-Einstein condensate
Creators: name: Yakimenko, A. I.
name: Vilchinskii, S. I.
name: Bidasyuk, Y. M.
name: Kuriatnikov, Y. I.
name: Isaieva, K. O.
name: Weyrauch, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Persistent current, or "flow without friction", as well as quantum vortices are the hallmarks of superfluidity. Recently a very long-lived persistent flow of atoms has been experimentally observed in Bose-Einstein condensates trapped in a ring-shaped potential. This enables fundamental studies of superfluidity and may lead to applications in high-precision metrology and atomtronics. We overview our recent theoretical studies of the generation of the persistent current in a stirred toroidal atomic Bose-Einstein condensate, and discuss our new investigation of the hysteresis in the atomtronic circuit.
description: 16 pages, 12 figures. This review article draws from the papers by the authors: Phys. Rev. A 88, 051602(R) (2013), arXiv:1409.6260, arXiv:1408.3293
mplhep: bridging Matplotlib and HEP
Creators: name: Novak, Andrzej
Publisher: name: Zenodo
Year: 2020

description: mplhep is small library on top of matplotlib, designed to simplify making typical HEP plots, which are not necessarily native to matplotlib, as well as, to distribute plotting styles and fonts to minimize the amount of needed cookie-cutter code and produce same results across platforms.
Optimal non-Markovian composite search algorithms for spatially correlated targets
Creators: name: Klimek, Anton
name: Netz, Roland R.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: stochastic non-Markovian search strategies
subject: spatially correlated target distributions
subject: efficiency
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: We study the efficiency of a wide class of stochastic non-Markovian search strategies for spatially correlated target distributions. For an uninformed searcher that performs a non-composite random search, a ballistically moving search is optimal for destructible targets, even when the targets are correlated. For an informed searcher that can measure the time elapsed since the last target encounter and performs a composite search consisting of alternating extensive ballistic trajectories and intensive non-Markovian search trajectories, the efficiency can be more than three times higher compared to a ballistic searcher. We optimize the memory function that describes the intensive non-Markovian search motion and find a single-exponential memory function to be optimal. In our extended search model the intensive search mode is activated when the distance between two consecutively found targets in the extensive search mode is smaller than a threshold length called the memory distance dm. We find that a finite value of dm quite generally leads to optimal search efficiency for correlated target distributions.
Multidimensional Tax Compliance Attitude
Creators: name: Bruns, Christoffer
name: Fochmann, Martin
name: Mohr, Peter N.C.
name: Torgler, Benno
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: behavioral economics
subject: compliance attitudes
subject: compliance behavior
subject: tax evasion
subject: heterogeneous individuals
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: Citizen tax compliance significantly dictates governmental fiscal capacities. Recognizing this, understanding the determinants of tax compliance remains paramount. While existing literature frequently isolates and tests individual determinants such as audit likelihood, penalty structures, tax morale, and perceived fairness, an integrative, bottom-up approach addressing the spectrum of tax compliance attitudes has largely been overlooked. Addressing this gap, our study constructs a multidimensional Tax Compliance Attitude Inventory (TCAI) by harmonizing real taxpayer re-sponses with established theoretical underpinnings. Through factor analysis, we delineate four pivotal factors: (i) morale, (ii) monetary benefit, (iii) deterrence, and (iv) authority. Notably, mo-rale and deterrence emerge as consistent influencers of tax compliance. Embracing this multidi-mensionality, our cluster analysis demarcates two distinct taxpayer personas: (a) moralists and (b) rationalists. Our findings underscore that moralists consistently exhibit higher tax compliance than their rationalist counterparts. We further present a streamlined classification algorithm to operationalize the TCAI in new datasets, minimizing item count. This work serves as a seminal contribution, offering both academia and tax authorities a robust, quantitative tool to gauge tax compliance attitudes.
Diderot’s Theatrical Acoustics
Creators: name: Welch, Ellen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In his roles as playwright and dramatic theorist, Denis Diderot is best known for emphasizing visual techniques such as pantomime and tableaux that move the audience through the eyes alone. This article argues that sound and hearing play an equally central, if less obvious, part in Diderot’s dramaturgy, particularly with respect to matters of audience attention, sympathy with suffering characters, and the bond among spectators in the theater. Thinking about Diderot’s ideal spectator as a listening as well as a gazing body shifts the focus from the individual, subjective experience of a play to the intersubjective, sympathetic, and communal aspects of theatergoing, and therefore clarifies the stakes of the philosopher’s proposals to renovate theatrical culture.
Continuous hemilaminectomy of nine vertebrae can be performed safely in large breed dogs: A case report of a German Shepherd Dog with intervertebral disc extrusion and extensive extradural hemorrhage
Creators: name: Lackmann, Felix
name: Schulze, Sabine
name: Böttcher, Peter
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Dog
subject: Epidural hemorrhage
subject: Hemilaminectomy
subject: Intervertebral disc extrusion
subject: Paraplegia
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: Background: Extended, continuous hemilaminectomy has only been reported in small to medium-sized dogs so far. It remains unclear whether excessive continuous hemilaminectomy can also be performed safely in large breed dogs. Case Description: We describe the surgical treatment and clinical outcome of a 5-year-old German Shepherd Dog that was presented with paraplegia and deep pain perception following a short episode of bilateral hind-limb lameness, secondary to jumping off of a car. CT-myelography revealed that the paraplegia originated from extensive extradural spinal cord compression (Th6-L1), due to intervertebral disc extrusion and associated epidural hemorrhage. The dog was treated with a continuous hemilaminectomy involving nine vertebrae (Th6-L1) and recovered completely with no remaining neurological deficits, within six months. Conclusion: The rapid, uncomplicated and complete functional recovery in the presented case emphasizes the practicability of extensive, continuous hemilaminectomies, also in large breed dogs.
“The Boundaries are Blurry…”: How Comment Moderators in Germany See and Respond to Hate Comments
Creators: name: Paasch-Colberg, Sunje
name: Strippel, Christian
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Comment moderation
subject: community management
subject: hate speech
subject: incivility
subject: interviews
subject: social media
subject: user comments
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: Aggressive and hateful user comments on news sites and social media threaten discussions on the Internet and pose a difficult challenge for content regulation. Previous research has mainly focused on the analysis of moderation strategies in dealing with such comments. In contrast, little attention was paid to the issue of which comments are considered problematic by content moderators in the first place. The answer to this question has more than theoretical relevance, but practical significance against the backdrop of increasing efforts to automate the detection of hate speech or toxicity in user comments. Based on 20 interviews, this paper explores what comment moderators in Germany consider to be hate comments, how they moderate them, and how differences in moderation practices can be explained. Our findings show strong agreement regarding extreme cases of hate comments, whereby there is overlap with the theoretical concept of hate speech, but also forms of incivility. Moreover, the interviews revealed differences in the perception and handling of hate comments, which can be linked to explanatory factors at the levels of the individual, professional routines, and the organization.
Time-Energy-Constrained Closed-Loop FBL Communication for Dependable MEC
Creators: name: Han, Bin
name: Zhu, Yao
name: Schmeink, Anke
name: Schotten, Hans D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The deployment of multi-access edge computing (MEC) is paving the way towards pervasive intelligence in future 6G networks. This new paradigm also proposes emerging requirements of dependable communications, which goes beyond the ultra-reliable low latency communication (URLLC), focusing on the performance of a closed loop instead of that of an unidirectional link. This work studies the simple but efficient one-shot transmission scheme, investigating the closed-loop-reliability-optimal policy of blocklength allocation under stringent time and energy constraints.
description: Accepted for publication at CSCN 2021 V1: accepted version V2: minor correction in the modulation order V3: corrections to resolve chaos caused by different normalizations of the FBL PER equation, model figure file updated in HQ