cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental Realization of a Reflections-Free Compact Delay Line Based on a Photonic Topological Insulator
Creators: name: Lai, Kueifu
name: Ma, Tzuhsuan
name: Bo, Xiao
name: Anlage, Steven
name: Shvets, Gennady
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electromagnetic (EM) waves propagating through an inhomogeneous medium inevitably scatter whenever electromagnetic properties of the medium change on the scale of a single wavelength. This fundamental phenomenon constrains how optical structures are designed and interfaced with each other. Recent theoretical work indicates that electromagnetic structures collectively known as photonic topological insulators (PTIs) can be employed to overcome this fundamental limitation, thereby paving the way for ultra-compact photonic structures that no longer have to be wavelength-scale smooth. Here we present the first experimental demonstration of a photonic delay line based on topologically protected surface electromagnetic waves (TPSWs) between two PTIs which are the EM counterparts of the quantum spin-Hall topological insulators in condensed matter. Unlike conventional guided EM waves that do not benefit from topological protection, TPSWs are shown to experience multi-wavelength reflection-free time delays when detoured around sharply-curved paths, thus offering a unique paradigm for compact and efficient wave buffers and other devices.
description: 22 pages, 10 figures, typo corrected
Wahrnehmung, Körperwahrnehmung und drei Fördermassnahmen im Vergleich
Creators: name: Ruckstuhl, Claudia
name: Rellstab, Anna
Publisher: name: Zenodo
Year: 2020
Subjects: Logopädie
Psychomotorik
Psychomotoriktherapie
Bachelorarbeit

description: In dieser Bachelorarbeit geht es um das Thema der Wahrnehmung, insbesondere um die Körperwahrnehmung. Es werden drei verschiedene Fördermassnahmen zur Arbeit an der Körperwahrnehmung vorgestellt und miteinander verglichen. Durch intensive Literaturrecherche haben wir uns mit unterschiedlichen Quellen auseinandergesetzt. Darauf basierend entstand der Theorieteil dieser Arbeit. Als erstes werden die Begriffe der Wahrnehmung und Körperwahrnehmung sowie deren Bedeutung erklärt. Ausserdem soll der Zusammenhang von Sprache und Bewegung dargestellt werden. Des Weiteren werden drei Förderansätze (Yoga, Entspannungsgeschichten und Tiefenwahrnehmung) zur Körperwahrnehmung theoretisch dargelegt und miteinander verglichen. Wir hatten die Möglichkeit, diese Interventionen in einer Klassenstunde auszuprobieren. Der praktische Teil dieser Arbeit wurde nicht durch eine Kontrollgruppe normiert, sondern diente uns vielmehr als Anregung und Inspiration für die zukünftige Arbeit und um die erarbeitete Theorie mit der Praxis zu verknüpfen.
How big are the smallest drops of quark-gluon plasma?
Creators: name: Chesler, Paul M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using holographic duality, we present results for both head-on and off-center collisions of Gaussian shock waves in strongly coupled $\mathcal N = 4$ supersymmetric Yang-Mills theory. The shock waves superficially resemble Lorentz contracted colliding protons. The collisions results in the formation of a plasma whose evolution is well described by viscous hydrodynamics. The size of the produced droplet is $R \sim 1/T_{\rm eff}$ where $T_{\rm eff}$ is the effective temperature, which is the characteristic microscopic scale in strongly coupled plasma. These results demonstrate the applicability of hydrodynamics to microscopically small systems and bolster the notion that hydrodynamics can be applied to heavy-light ion collisions as well as some proton-proton collisions.
description: 21 pages, 7 figures, typos corrected
Integrated micro-plasmas in silicon operating in helium
Creators: name: Dussart, Remi
name: Overzet, Lawrence J.
name: Lefaucheux, P
name: Dufour, Thierry
name: Kulsreshath, M
name: Mandra, Monali
name: Tillocher, Thomas
name: Aubry, O
name: Dozias, S
name: Ranson, P
name: Goeckner, M
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Microplasma arrays operating in helium in a DC regime have been produced in silicon microre-actors. Cathode boundary layer (CBL) type microdevices were elaborated using clean room facilities and semiconductor processing techniques. Ignition of the micro-discharge arrays having either 50 or 100 m diameter cavities was studied. Two different structures (isotropically etched or anisotropically etched cavity) and various conditions (the two different voltage polarities, pressures etc.) were investigated. 100 microdis-charges of 50 m diameter could be ignited in parallel at 1000 torr. At high current, some parasitic and transient sparks appeared at the edge of the sample. When the polarization was reversed (cathode side corresponding the opened electrode), more current was needed to light all the microdischarges. A thermally affected zone around the hole on the anode side was obtained after operation.
Statistical Mechanics of High-Dimensional Inference
Creators: name: Advani, Madhu
name: Ganguli, Surya
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistics Theory (math.ST)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: To model modern large-scale datasets, we need efficient algorithms to infer a set of $P$ unknown model parameters from $N$ noisy measurements. What are fundamental limits on the accuracy of parameter inference, given finite signal-to-noise ratios, limited measurements, prior information, and computational tractability requirements? How can we combine prior information with measurements to achieve these limits? Classical statistics gives incisive answers to these questions as the measurement density $α= \frac{N}{P}\rightarrow \infty$. However, these classical results are not relevant to modern high-dimensional inference problems, which instead occur at finite $α$. We formulate and analyze high-dimensional inference as a problem in the statistical physics of quenched disorder. Our analysis uncovers fundamental limits on the accuracy of inference in high dimensions, and reveals that widely cherished inference algorithms like maximum likelihood (ML) and maximum-a posteriori (MAP) inference cannot achieve these limits. We further find optimal, computationally tractable algorithms that can achieve these limits. Intriguingly, in high dimensions, these optimal algorithms become computationally simpler than MAP and ML, while still outperforming them. For example, such optimal algorithms can lead to as much as a 20% reduction in the amount of data to achieve the same performance relative to MAP. Moreover, our analysis reveals simple relations between optimal high dimensional inference and low dimensional scalar Bayesian inference, insights into the nature of generalization and predictive power in high dimensions, information theoretic limits on compressed sensing, phase transitions in quadratic inference, and connections to central mathematical objects in convex optimization theory and random matrix theory.
description: See http://ganguli-gang.stanford.edu/pdf/HighDimInf.Supp.pdf for supplementary material
From Innovation to Markets and Back. A Conversation with Michel Callon
Creators: name: Mallard, Alexandre
name: Callon, Michel
Publisher: name: Sociologica
Year: 2023

description: In this conversation, Michel Callon reviews the major events and questions that have marked his scientific career. He begins by presenting the personal and political path that led him, after completing his engineering studies, to join the Centre de Sociologie de l'Innovation at the École des Mines de Paris in 1968. His early work on the theme of innovation was conducted in a context where science and technology were the focus of multiple questions in economics and sociology. Michel Callon explains the collective research approach that led to the creation of the concept of translation, and the efforts to develop co-word analysis, an automated textual processing method designed to study the products of science and technology. It is from these questions on the processes of innovation, and from this long-standing dialogue with economists, that Michel Callon will develop, from the end of the 1990s, his work on markets. From research on the performativity of economic knowledge to the analysis of market agencements, this work has developed an original perspective on the dynamics of the economy, which goes beyond the criticisms usually levelled at capitalism by the social sciences. It invites us to develop a reflection on the plural roles that markets play not only in production and consumption, but also in the genesis of diverse social relations, in political organization and in crisis situations.
description: Sociologica, Vol. 16 No. 3 (2022)
Introduction to the Flashback: Setting the Scene for John Hall’s “The Spectacle of Performance”
Creators: name: Zampieri, Giovanni
Publisher: name: Sociologica
Year: 2023

description: Introduction to John R. Hall’s “The Spectacle of Performance. The Postmodern Hyperreal and Medieval European Play (1992–2022)”.
description: Sociologica, Vol. 16 No. 3 (2022)
Compte rendu de l'Atelier « Apparats critiques » (14 juin 2023)
Creators: name: Lecouteux, Stéphane
name: Mancel, Emeline
name: Goloubkoff, Anne
Publisher: name: Zenodo
Year: 2023
Subjects: cluster 5b, laboratoire de textes, apparat critique

description: Objectif de l’atelier :
 Définir collectivement les principales fonctionnalités de l’apparat critique attendues dans le futur
 laboratoire de textes de Biblissima+ (cluster 5b), afin de répondre au mieux aux attentes des
 chercheurs.
description: Ce travail a bénéficié d'une aide de l'État gérée par l'Agence Nationale de la Recherche au titre du programme d'Investissements d'avenir portant la référence « ANR-21-ESRE-0005 » (ÉquipEx Biblissima+)
THE MORPHIC PROPERTY IN MODULES AND NEAR-RINGS
Creators: name: Kimuli, Philly
Publisher: name: figshare
Year: 2023
Subjects: Algebra and number theory
Group theory and generalisations
Category theory, k theory, homological algebra
Pure mathematics not elsewhere classified

description: We introduce and study weakly-morphic modules and their properties. % are introduced and their properties given. In particular, we show that a finitely generated $\Bbb Z$-module is weakly-morphic if and only if it is finite. Hence a finitely generated Abelian group is morphic if and only if it is weakly-morphic as a $\Bbb Z$-module and each of its primary components is of the form $(\Bbb Z/p^k\Bbb Z)^n$ for some non-negative integers $n$ and $k$. Using these weakly-morphic modules, different notions of a regular module are characterised. We show that, under some special conditions, weakly-morphic property on reduced (respectively, co-reduced) (cyclic) sub-modules reveals the kind of regularity a module will have. Lastly, we study left-morphic near-ring elements and show that the class of left-morphic regular near-rings is properly contained between the classes of left strongly regular and unit-regular near-rings.
Perfect energy-feeding into strongly coupled systems and interferometric control of polariton absorption
Creators: name: Zanotto, Simone
name: Mezzapesa, Francesco P.
name: Bianco, Federica
name: Biasiol, Giorgio
name: Baldacci, Lorenzo
name: Vitiello, Miriam Serena
name: Sorba, Lucia
name: Colombelli, Raffaele
name: Tredicucci, Alessandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The ability to feed energy into a system, or - equivalently - to drive that system with an external input is a fundamental aspect of light-matter interaction. The key concept in many photonic applications is the "critical coupling" condition: at criticality, all the energy fed to the system via an input channel is dissipated within the system itself. Although this idea was crucial to enhance the efficiency of many devices, it was never considered in the context of systems operating in a non-perturbative regime. In this so-called strong coupling regime, the matter and light degrees of freedom are in fact mixed into dressed states, leading to new eigenstates called polaritons. Here we demonstrate that the strong coupling regime and the critical coupling condition can indeed coexist; in this situation, which we term strong critical coupling, all the incoming energy is converted into polaritons. A semiclassical theory - equivalently applicable to acoustics or mechanics - reveals that the strong critical coupling corresponds to a special curve in the phase diagram of the coupled light-matter oscillators. In the more general case of a system radiating via two scattering ports, the phenomenology displayed is that of coherent perfect absorption (CPA), which is then naturally understood and described in the framework of critical coupling. Most importantly, we experimentally verify polaritonic CPA in a semiconductor-based intersubband-polariton photonic-crystal membrane resonator. This result opens new avenues in the exploration of polariton physics, making it possible to control the pumping efficiency of a system almost independently of its Rabi energy, i.e., of the energy exchange rate between the electromagnetic field and the material transition.
Achieving sub-shot-noise sensing at finite temperatures
Creators: name: Mehboudi, Mohammad
name: Correa, Luis A.
name: Sanpera, Anna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate sensing of magnetic fields using quantum spin chains at finite temperature and exploit quantum phase crossovers to improve metrological bounds on the estimation of the chain parameters. In particular, we analyze the $ XX $ spin chain and show that the magnetic sensitivity of this system is dictated by its adiabatic magnetic susceptibility, which scales extensively (linearly) in the number of spins $ N $. Next, we introduce an iterative feedforward protocol that actively exploits features of quantum phase crossovers to enable super-extensive scaling of the magnetic sensitivity. Moreover, we provide experimentally realistic observables to saturate the quantum metrological bounds. Finally, we also address magnetic sensing in the Heisenberg $ XY $ spin chain.
description: 8 pages, 4 figures; revised
The Two-Modular Fourier Transform of Binary Functions
Creators: name: Hong, Yi
name: Viterbo, Emanuele
name: Belfiore, Jean-Claude
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we provide a solution to the open problem of computing the Fourier transform of a binary function defined over $n$-bit vectors taking $m$-bit vector values. In particular, we introduce the two-modular Fourier transform (TMFT) of a binary function $f:G\rightarrow {\cal R}$, where $G = (\mathbb{F}_2^n,+)$ is the group of $n$ bit vectors with bitwise modulo two addition $+$, and ${\cal R}$ is a finite commutative ring of characteristic $2$. Using the specific group structure of $G$ and a sequence of nested subgroups of $G$, we define the fast TMFT and its inverse. Since the image ${\cal R}$ of the binary functions is a ring, we can define the convolution between two functions $f:G\rightarrow {\cal R}$. We then provide the TMFT properties, including the convolution theorem, which can be used to efficiently compute convolutions. Finally, we derive the complexity of the fast TMFT and the inverse fast TMFT.
description: to appear in IEEE Trans. on Information Theory
“Spectacle of Performance” as a Spectacle of Interdisciplinarity. Comments on John Hall
Creators: name: Cossu, Andrea
Publisher: name: Sociologica
Year: 2023

description: Comment on John R. Hall's The Spectacle of Performance. The Postmodern Hyperreal and Medieval European Play (1992-2022).
description: Sociologica, Vol. 16 No. 3 (2022)
Unified Correspondence and Proof Theory for Strict Implication
Creators: name: Ma, Minghui
name: Zhao, Zhiguang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: The unified correspondence theory for distributive lattice expansion logics (DLE-logics) is specialized to strict implication logics. As a consequence of a general semantic consevativity result, a wide range of strict implication logics can be conservatively extended to Lambek Calculi over the bounded distributive full non-associative Lambek calculus (BDFNL). Many strict implication sequents can be transformed into analytic rules employing one of the main tools of unified correspondence theory, namely (a suitably modified version of) the Ackermann lemma based algorithm $\msf{ALBA}$. Gentzen-style cut-free sequent calculi for BDFNL and its extensions with analytic rules which are transformed from strict implication sequents, are developed.
description: This is a Pre-publication version of a submission to the Journal of Logic and Computation
A Census of Young Stars and Brown Dwarfs in IC 348 and NGC 1333
Creators: name: Luhman, K. L.
name: Esplin, T. L.
name: Loutrel, N. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have obtained optical and near-infrared spectra of candidate members of the star-forming clusters IC 348 and NGC 1333. We classify 100 and 42 candidates as new members of the clusters, respectively, which brings the total numbers of known members to 478 and 203. We also have performed spectroscopy on a large majority of the previously known members of NGC 1333 in order to provide spectral classifications that are measured with the same scheme that has been applied to IC 348 in previous studies. The new census of members is nearly complete for Ks<16.8 at Aj<1.5 in IC 348 and for Ks<16.2 at Aj<3 in NGC 1333, which correspond to masses of <=0.01 Msun for ages of 3 Myr according to theoretical evolutionary models. The faintest known members extend below these completeness limits and appear to have masses of ~0.005 Msun. In extinction-limited samples of cluster members, NGC 1333 exhibits a higher abundance of objects at lower masses than IC 348. It would be surprising if the initial mass functions of these clusters differ significantly given their similar stellar densities and formation environments. Instead, it is possible that average extinctions are lower for less massive members of star-forming clusters, in which case extinction-limited samples could be biased in favor of low-mass objects in the more heavily embedded clusters like NGC 1333. In the H-R diagram, the median sequences of IC 348 and NGC 1333 coincide with each other for the adopted distances of 300 and 235 pc, which would suggest that they have similar ages. However, NGC 1333 is widely believed to be younger than IC 348 based on its higher abundance of disks and protostars and its greater obscuration. Errors in the adopted distances may be responsible for this discrepancy.
description: accepted for publication in the Astrophysical Journal; machine readable tables and fits spectra available at http://www2.astro.psu.edu/users/kluhman/perseus.tar
Explaining Machines: Social Management of Incomprehensible Algorithms. Introduction
Creators: name: Esposito, Elena
Publisher: name: Sociologica
Year: 2023

description: This short introduction presents the symposium ‘Explaining Machines’. It locates the debate about Explainable AI in the history of the reflection about AI and outlines the issues discussed in the contributions.
description: Sociologica, Vol. 16 No. 3 (2022)
The impact of COVID-19 on an Irish Emergency Department (ED): a cross-sectional study exploring the factors infuencing ED utilisation prior to and during the pandemic from the patient perspective
Creators: name: Cummins, Niamh
name: Garavan, Carrie
name: Barry, Louise A.
name: Devlin, Collette
name: Corey, Gillian
name: Cummins, Fergal
name: RYAN, DAMIEN
name: McCarthy, Gerard
name: Galvin, Rose
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Background: The collateral damage of SARS-CoV-2 is a serious concern in the Emergency Medicine (EM) community, specifcally in relation to delayed care increasing morbidity and mortality in attendances unrelated to COVID-19. The objectives of this study are to describe the profle of patients attending an Irish ED prior to, and during the pandemic, and to investigate the factors infuencing ED utilisation in this cohort. Methods: This was a cross-sectional study with recruitment at three time-points prior to the onset of COVID-19 in December 2019 (n=47) and February 2020 (n=57) and post-Lockdown 1 in July 2020 (n=70). At each time-point all adults presenting over a 24h period were eligible for inclusion. Clinical data were collected via electronic records and a questionnaire provided information on demographics, healthcare utilisation, service awareness and factors infu?encing the decision to attend the ED. Data analysis was performed in SPSS and included descriptive and inferential statistics. Results: The demographic and clinical profle of patients across time-points was comparable in terms of age (p=0.904), gender (p=0.584) and presenting complaint (p=0.556). Median length of stay in the ED decreased from 7.25h (IQR 4.18–11.22) in February to 3.86h (IQR 0.41–9.14) in July (p≤0.005) and diferences were observed in dispo?sition (p≤0.001). COVID-19 infuenced decision to attend the ED for 31% of patients with 9% delaying presentation. Post-lockdown, patients were less likely to attend the ED for reassurance (p≤0.005), for a second opinion (p≤0.005) or to see a specialist (p≤0.05). Conclusions: Demographic and clinical presentations of ED patients prior to the frst COVID-19 lockdown and dur?ing the reopening phase were comparable, however, COVID-19 signifcantly impacted health-seeking behaviour and operational metrics in the ED at this phase of the pandemic. These fndings provide useful information for hospitals with regard to pandemic preparedness and also have wider implications for planning of future health service delivery
The Crisis of Social Categories in the Age of AI
Creators: name: John-Mathews, Jean-Marie
name: Cardon, Dominique
Publisher: name: Sociologica
Year: 2023

description: This article explores the change in calculation methods induced by deep learning techniques. While more traditional statical methods are based on well instituted categories to measure the social world, these categories are today denounced as a set of hardened and abstract conventions that are incapable of conveying the complexification of social life and the singularities of individuals. Today AI models try to overcome some criticism raised by rigid social categories by combining a "spatial and temporal expansion" of the data space, producing a global transformation of the calculation methods.
description: Sociologica, Vol. 16 No. 3 (2022)
Mapping Value(s) in AI: Methodological Directions for Examining Normativity in Complex Technical Systems
Creators: name: Rieder, Bernhard
name: Gordon, Geoff
name: Sileno, Giovanni
Publisher: name: Sociologica
Year: 2023

description: This paper seeks to develop a multidisciplinary methodological framework and research agenda for studying the broad array of 'ideas', 'norms', or 'values' incorporated and mobilized in systems relying on AI components. We focus on recommender systems as a broader field of technical practice and take YouTube as an example of a concrete artifact that raises many social concerns. To situate the conceptual perspective and rationale informing our approach, we briefly discuss investigations into normativity in technology more broadly and refer to 'descriptive ethics' and 'ethigraphy' as two approaches concerned with the empirical study of values and norms. Drawing on science and technology studies, we argue that normativity cannot be reduced to ethics, but requires paying attention to a wider range of elements, including the performativity of material objects themselves. The method of 'encircling' is presented as a way to deal with both the secrecy surrounding many commercial systems and the socio-technical and distributed character of normativity more broadly. The resulting investigation aims to draw from a series of approaches and methods to construct a much wider picture than what could result from one discipline only. The paper is then dedicated to developing this methodological framework organized into three layers that demarcate specific avenues for conceptual reflection and empirical research, moving from the more general to the more concrete: ambient technical knowledge, local design conditions, and materialized values. We conclude by arguing that deontological approaches to normativity in AI need to take into account the many different ways norms and values are embedded in technical systems.
description: Sociologica, Vol. 16 No. 3 (2022)
Fully coherent hard X-ray generation by two-stage of Phase-merging Enhanced Harmonic Generation
Creators: name: Wang, Guanglei
name: Zhang, Weiqing
name: Yang, Xueming
name: Feng, Chao
name: Deng, Haixiao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Cascading stages of seeded free electron laser (FEL) is a promising way to produce fully coherent X-ray radiations. We study a new approach to produce coherent hard X-rays by cascading the recently proposed phase-merging enhanced harmonic generation (PEHG). The scheme consists of one dogleg and two PEHG configurations, which may be one of the leading candidates for the extracted undulator branch in future X-ray FEL facilities. FEL physics studies show that such a scheme is feasible within the present technology and can provide high brightness X-ray radiation pulses with narrow bandwidth and fully coherence, and the radiated peak power at 1 angstrom wavelength converted from an initial 200 nm seed laser is over 2 GW.
description: 9 pages, 5 figures
Sécurité des abords vasculaires : une évaluation des pratiques professionnelles au CHRU de Nancy
Creators: name: Colas, Anaïs
name: Lizon, Julie
name: Renaudin, Laurie
name: Regad, Marie
name: Florentin, Arnaud
Publisher: name: Health & Co
Year: 2021
Subjects: Voie intraveineus
Cathétérisme veineux
Midline
Évaluation des pratiques professionnelles
Prévention des infections
Infection du cathéter
Infection associée aux soins

description: Contexte et objectif. L’objectif de ce travail est de réaliser une évaluation des pratiques professionnelles actuelles de gestion des voies veineuses centrales et des midlines, référencés précipitamment sans accompagnement au centre hospitalier régional universitaire de Nancy. Matériel et méthodes. Dans les services les plus utilisateurs, 6 gestes sont observés : pose, retrait, manipulation, réfection de pansement, pose et retrait d’aiguille de Huber. Les observations sont rapportées dans des grilles spécifiques. Résultats. Pendant 6 mois, 148 observations ont été réalisées : 31 poses, 21 retraits, 36 manipulations, 29 réfections de pansement, 15 poses et 16 retraits d’aiguille de Huber. Les manipulations sont les gestes pour lesquelles les pratiques sont les plus hétérogènes : défaut d’hygiène des mains (HDM), de désinfection de raccords ou de rinçage postinjection. Lors des autres gestes, les taux de défaut d’HDM observés sont plus faibles. La chlorhexidine alcoolique 2% prête à l’emploi est majoritairement utilisée pour l’antisepsie de la peau. Discussion, conclusion. Cette évaluation a mis en évidence des divergences, mais aussi des taux de réalisation proches de 100% pour certaines pratiques. Lorsque les bonnes pratiques sont exposées dans des documents institutionnels bien structurés, le taux de réalisation est élevé. Quand elles ne sont pas clairement exposées, non exhaustives ou absentes des procédures, ce taux est beaucoup plus faible. Un travail d’harmonisation est donc nécessaire. La première phase de ce travail a débuté avec la rédaction d’un guide sur la gestion des abords vasculaires (de la pose du dispositif jusqu’au retrait) qui permettra de se conformer aux nouvelles recommandations nationales.
After “The Spectacle of Performance”
Creators: name: Hall, John R.
Publisher: name: Sociologica
Year: 2023

description: The publication of "The Spectacle of Performance" three decades after it was written offers the opportunity to reflect upon the intellectual circumstances of its production; on what was and was not distinctive about it then; on where sociological and interdisciplinary studies of performance have come to in the years since; and about what the framing of Spectacle might still contribute so long after it was written. I suggest that performance, when understood not only in interactional terms but more broadly, in relation to temporally structured social formations, offers a basis for reorienting sociohistorical inquiry in a synthetic way.
description: Sociologica, Vol. 16 No. 3 (2022)
ExoMol molecular line lists - XIII: The spectrum of CaO
Creators: name: Yurchenko, Sergei N.
name: Blissett, Audra
name: Asari, Usama
name: Vasilios, Marcus
name: Hill, Christian
name: Tennyson, Jonathan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: An accurate line list for calcium oxide is presented covering transitions between all bound ro-vibronic levels from the five lowest electronic states \X, \Ap, \A, \astate, and \bstate. The ro-vibronic energies and corresponding wavefunctionts were obtained by solving the fully coupled Schrödinger equation. \textit{Ab initio} potential energy, spin-orbit, and electronic angular momentum curves were refined by fitting to the experimental frequencies and experimentally derived energies available in the literature. Using our refined model we could (i) reassign the vibronic states for a large portion of the experimentally derived energies [van Groenendael A., Tudorie M., Focsa C., Pinchemel B., Bernath P. F., 2005, J. Mol. Spectrosc., 234, 255], (ii) extended this list of energies to $J=79-118$ and (iii) suggest a new description of the resonances from the \A--\X\ system. We used high level \textit{ab initio} electric dipole moments reported previously [Khalil H., Brites V., Le Quere F., Leonard C., 2011, Chem. Phys., 386, 50] to compute the Einstein A coefficients. Our work is the first fully coupled description of this system. Our line list is the most complete catalogue of spectroscopic transitions available for $^{40}$Ca$^{16}$O and is applicable for temperatures up to at least 5000~K. CaO has yet to be observed astronomically but its transitions are characterised by being particularly strong which should facilitate its detection. The CaO line list is made available in an electronic form as supplementary data to this article and at \url{www.exomol.com}.
description: 13 pages MNRAS in press
Supplementary Table 2 from An in silico model to study the impact of carbonic anhydrase IX expression on tumour growth and anti-PD-1 therapy
Creators: name: Grajek, Julia
name: Nikolas Kather, Jakob
name: Poleszczuk, Jan
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Results of the survival analysis in two cohorts: high CAIX expression vs low CAIX expression. FDR denotes the false discovery rate resulting from the determination of the best possible cut-off value. P denotes the p-value of the Cox-Mantel (log-rank) test.
Supplementary Figure S2 from An in silico model to study the impact of carbonic anhydrase IX expression on tumour growth and anti-PD-1 therapy
Creators: name: Grajek, Julia
name: Nikolas Kather, Jakob
name: Poleszczuk, Jan
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Heatmap showing the p-values of the post-hoc pairwise comparison using Dunn test with Bonferroni correction. We compared the treatment response to different doses within tumor groups as well as the response to the same dose between groups, yielding 30 pairwise comparisons. White squares represent comparisons that weren't performed, light beige squares represent insignificant differences.
The Spectacle of Performance. The Postmodern Hyperreal and Medieval European Play
Creators: name: Hall, John R.
Publisher: name: Sociologica
Year: 2023

description: A postmodernist claim concerning contemporary displacement of reality by "simulacra" that subsume reality can inspire a broader genealogy of reality, representation, play, and imaginaries. This essay examines: (1) the supposed postmodern displacement of modern boundaries between reality and representation; (2) medieval European performance; and (3) implications for understanding reality construction as a genealogical project. Any overly binary distinction between the modern and the postmodern is problematic. The social construction of reality, representation, play, and imaginaries occurs in societies in general. Consideration of medieval European venues (the Church, courts, and others) reveals contestation about performances of jugglers and acrobats, minstrels and mimes, courtly poets, and religious performers of spectacular ritual. Myriad medieval practices created a "near imaginary" of enchantment that permeated even quotidian reality with magic, angels, devils, and monsters, nevertheless resisting dramatization as such. Modernization, marked culturally by the emergence of realist Renaissance theater, established stronger boundaries between reality and imaginaries. Postmodern developments undermine rationalized modern policings of objective reality and representation. However, in contrast to medieval enchantment through a near-imaginary, simulacra organize life through more free-floating representations. This analysis offers a prototype for further histories of cultural constructions of reality in relation to performance and imaginaries.
description: Sociologica, Vol. 16 No. 3 (2022)
Supplementary Figure S1 from An in silico model to study the impact of carbonic anhydrase IX expression on tumour growth and anti-PD-1 therapy
Creators: name: Grajek, Julia
name: Nikolas Kather, Jakob
name: Poleszczuk, Jan
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Simplified diagrams showing the rules of the ABM that govern the actions of tumor cells (A), and lymphocytes (B).
Qualification and Quantification in Machine Learning. From Explanation to Explication
Creators: name: Hildebrandt, Mireille
Publisher: name: Sociologica
Year: 2023

description: Moving beyond the conundrum of explanation, usually portrayed as a trade-off against accuracy, this article traces the recent emergence of explainable AI to the legal “right to an explanation”, situating the need for an explanation in the underlying rule of law principle of contestability. Instead of going down the rabbit hole of causal or logical explanations, the article then revisits the Methodenstreit, whose outcome has resulted in the quantifiability of anything and everything, thus hiding the qualification that necessarily precedes any and all quantification. Finally, the paper proposes to use the quantification that is inherent in machine learning to identify individual decisions that resist quantification and require situated inquiry and qualitative research. For this, the paper explores Clifford Geertz’s notion of explication as a conceptual tool focused on discernment and judgment rather than calculation and reckoning.
description: Sociologica, Vol. 16 No. 3 (2022)
Supplementary Methods from An in silico model to study the impact of carbonic anhydrase IX expression on tumour growth and anti-PD-1 therapy
Creators: name: Grajek, Julia
name: Nikolas Kather, Jakob
name: Poleszczuk, Jan
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: Computational Biology
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: A more detailed explanation of the tumor metabolism model, including mathematical equations and a table presenting the parameter values of the calibrated ABM.
Analytical results for non-linear Compton scattering in short intense laser pulses
Creators: name: Seipt, Daniel
name: Kharin, Vasily
name: Rykovanov, Sergey
name: Surzhykov, Andrey
name: Fritzsche, Stephan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study in detail the strong-field QED process of non-linear Compton scattering in short intense plane wave laser pulses of circular polarization. Our main focus is placed on how the spectrum of the back-scattered laser light depends on the shape and duration of the initial short intense pulse. Although this pulse shape dependence is very complicated and highly non-linear, and has never been addressed explicitly, our analysis reveals that all the dependence on the laser pulse shape is contained in a class of three-parameter master integrals. Here we present completely analytical expressions for the non-linear Compton spectrum in terms of these master integrals. Moreover, we analyse the universal behaviour of the shape of the spectrum for very high harmonic lines.
description: 15 pages, 6 figures
Does Explainability Require Transparency?
Creators: name: Esposito, Elena
Publisher: name: Sociologica
Year: 2023

description: Dealing with opaque algorithms, the frequent overlap between transparency and explainability produces seemingly unsolvable dilemmas, as the much-discussed trade-off between model performance and model transparency. Referring to Niklas Luhmann's notion of communication, the paper argues that explainability does not necessarily require transparency and proposes an alternative approach. Explanations as communicative processes do not imply any disclosure of thoughts or neural processes, but only reformulations that provide the partners with additional elements and enable them to understand (from their perspective) what has been done and why. Recent computational approaches aiming at post-hoc explainability reproduce what happens in communication, producing explanations of the working of algorithms that can be different from the processes of the algorithms.
description: Sociologica, Vol. 16 No. 3 (2022)
Towards model-informed precision dosing of piperacillin: multicenter systematic external evaluation of pharmacokinetic models in critically ill adults with a focus on Bayesian forecasting
Creators: name: Greppmair, Sebastian
name: Brinkmann, Alexander
name: Roehr, Anka
name: Frey, Otto
name: Hagel, Stefan
name: Dorn, Christoph
name: Marsot, Amélie
name: El-Haffaf, Ibrahim
name: Zoller, Michael
name: Saller, Thomas
name: Zander, Johannes
name: Schatz, Lea Marie
name: Scharf, Christina
name: Briegel, Josef
name: Minichmayr, Iris K.
name: Wicha, Sebastian G.
name: Liebchen, Uwe
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 615 Pharmazie

description: Purpose: Inadequate piperacillin (PIP) exposure in intensive care unit (ICU) patients threatens therapeutic success. Model-informed precision dosing (MIPD) might be promising to individualize dosing; however, the transferability of published models to external populations is uncertain. This study aimed to externally evaluate the available PIP population pharmacokinetic (PopPK) models. Methods: A multicenter dataset of 561 ICU patients (11 centers/3654 concentrations) was used for the evaluation of 24 identified models. Model performance was investigated for a priori (A) predictions, i.e., considering dosing records and patient characteristics only, and for Bayesian forecasting, i.e., additionally including the first (B1) or first and second (B2) therapeutic drug monitoring (TDM) samples per patient. Median relative prediction error (MPE) [%] and median absolute relative prediction error (MAPE) [%] were calculated to quantify accuracy and precision. Results: The evaluation revealed a large inter-model variability (A: MPE - 135.6-78.3% and MAPE 35.7-135.6%). Integration of TDM data improved all model predictions (B1/B2 relative improvement vs. A: |MPE|median_all_models 45.1/67.5%; MAPEmedian_all_models 29/39%). The model by Kim et al. was identified to be most appropriate for the total dataset (A/B1/B2: MPE - 9.8/- 5.9/- 0.9%; MAPE 37/27.3/23.7%), Udy et al. performed best in patients receiving intermittent infusion, and Klastrup et al. best predicted patients receiving continuous infusion. Additional evaluations stratified by sex and renal replacement therapy revealed further promising models. Conclusion: The predictive performance of published PIP models in ICU patients varied considerably, highlighting the relevance of appropriate model selection for MIPD. Our differentiated external evaluation identified specific models suitable for clinical use, especially in combination with TDM. Keywords: Intensive care medicine; Model-informed precision dosing; Pharmacokinetics/pharmacodynamics; Piperacillin; Therapeutic drug monitoring.
A Plea for Inexplicability
Creators: name: Weinberger, David
Publisher: name: Sociologica
Year: 2023

description: Explanations have long played a crucial role in the west’s metaphysics of control by providing levers by which we exercise control, but also by grounding our assumption that we are the legitimate and rightful masters of the world. Within this metaphysics, inexplicability looks like a failure. But machine learning may be teaching us a different lesson: Explicability is not a property of the universe, but inexplicability is. In short, the world is the ultimate black box. Accepting this may lessen our one-sided commitment to the general rules, principles, and laws that make western-style mastery seem possible. We may instead be entering a time when we are willing to value the particular at least as much as the general, and can embrace the hiddenness of the universe that grounds all that shows itself to us.
description: Sociologica, Vol. 16 No. 3 (2022)
Performance of a community detection algorithm based on semidefinite programming
Creators: name: Javanmard, Adel
name: Montanari, Andrea
name: Ricci-Tersenghi, Federico
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Statistical Mechanics (cond-mat.stat-mech)
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: The problem of detecting communities in a graph is maybe one the most studied inference problems, given its simplicity and widespread diffusion among several disciplines. A very common benchmark for this problem is the stochastic block model or planted partition problem, where a phase transition takes place in the detection of the planted partition by changing the signal-to-noise ratio. Optimal algorithms for the detection exist which are based on spectral methods, but we show these are extremely sensible to slight modification in the generative model. Recently Javanmard, Montanari and Ricci-Tersenghi (arXiv:1511.08769) have used statistical physics arguments, and numerical simulations to show that finding communities in the stochastic block model via semidefinite programming is quasi optimal. Further, the resulting semidefinite relaxation can be solved efficiently, and is very robust with respect to changes in the generative model. In this paper we study in detail several practical aspects of this new algorithm based on semidefinite programming for the detection of the planted partition. The algorithm turns out to be very fast, allowing the solution of problems with $O(10^5)$ variables in few second on a laptop computer.
description: 12 pages, 7 figures. Proceedings for the HD3-2015 conference (Kyoto, Dec 14-17, 2015)
Origin and stability of dark pulse Kerr combs in normal dispersion resonators
Creators: name: Parra-Rivas, Pedro
name: Gomila, Damia
name: Knobloch, Edgar
name: Coen, Stéphane
name: Gelens, Lendert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We analyze dark pulse Kerr frequency combs in optical resonators with normal group-velocity dispersion using the Lugiato-Lefever model. We show that in the time domain these correspond to interlocked switching waves between the upper and lower homogeneous states, and explain how this fact accounts for many of their experimentally observed properties. Modulational instability does not play any role in their existence. Furthermore, we provide a detailed map indicating where stable dark pulse Kerr combs can be found in parameter space, and how they are destabilized for increasing values of frequency detuning.
Sewer Mining (SM) technology as a Distributed Intervention for Water-Energy-Materials in the Circular Economy: A Real World Demonstration in the Athens Plant Nursery
Creators: name: Monokrousou, Klio
name: Makropoulos, Christos
name: Tsimnadis, Konstantinos
name: Katsouras, Georgios
name: Tsalas, Nikolaos
Publisher: name: Zenodo
Year: 2023

description: Poster on Sewer Mining (SM) technology for the 3rd INTERNATIONAL CONFERENCE ON ENVIRONMENTAL DESIGN, ICED2022, https://iced.eap.gr/ 22-23 October 2022 Athens, Greece and Virtual
Compact stars with linear equation of state in isotropic coordinates
Creators: name: Ngubelanga, Sifiso A.
name: Maharaj, Sunil D.
name: Ray, Subharthi
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new class of spherically symmetric spacetimes for matter distributions with anisotropic pressures in the presence of an electric field. The equation of state for the matter distribution is linear. A class of new exact solutions is found to the Einstein-Maxwell system of equations with an isotropic form of the line element. We achieve this by specifying particular forms for one of the gravitational potentials and the electric field intensity. We regain the masses of the stars PSR J1614-2230, Vela X-1, PSR J1903+327, 4U 1820-30 and SAX J1808.4-3658 for particular parameter values. A detailed physical analysis for the star PSR J1614-2230 indicates that the model is well behaved.
description: 11 pages, submitted for publication