Book of Short Papers of the 5th international workshop on Models and Learning for Clustering and Classification

2021

The volume contains some papers presented at the 5° workshop on “Models and Learning in Clustering and Classification” organized by the Department of Economics and Business of the University of Catania, Italy in September 2020. The aim of the workshop is two-fold. First, to provide a focus on the state-of-the-art research in the field of statistical models and learning techniques for supervised and unsupervised classification. Secondly, to provide a forum of scientific discussions and comparisons among young and senior researchers in different areas of statistics and data science.

Moving enterprise resource planning (ERP) systems to the cloud: the challenge of infrastructural embeddedness

2021

Cloud enterprise resource planning (ERP) solutions allow organizations to support and coordinate key business processes by leveraging virtualization. Nevertheless, moving ERPs to the cloud is not straightforward, and organizational cloud ERP initiatives raise multiple concerns. We conducted an in-depth systematic review of relevant research literature and identified six key concerns related to cloud ERP implementation: a) the introduction of new ERP work arrangements, b) the migration of legacy data, c) the assurance of compliance with extant rules and regulations for security, d) the continuous alignment between ERP functionality and business processes, e) the ongoing integration between E…

Les rémunérations fondées sur des actions : le cas de la société SCHLMIC

2021

International audience

Slope threshold for overland flow resistance on sandy soils

2021

Recent research on rill flows recognised that an 18% slope can be used to distinguish between ‘gentle’ and ‘steep’ slope cases for the detected differences in hydraulic (flow depth and velocity) and sediment transport variables (flow transport capacity, actual sediment load). The effects of slope on flow velocity, friction factor and transport capacity and their interactions affect process-based erosion modelling. The main aim of this paper is to investigate, for the first time, how slope affects the overland flow resistance on sandy soils, which are characterised by loose particles readily available to be transported and deposited. Using literature measurements carried out in sandy soils f…

First ß-decay spectroscopy of 135In and new ß-decay branches of 134In

2021

Physical Agent Modalities in Early Osteoarthritis: A Scoping Review

2021

Early osteoarthritis (EOA) still represents a challenge for clinicians. Although there is no consensus on its definition and diagnosis, a prompt therapeutic intervention in the early stages can have a significant impact on function and quality of life. Exercise remains a core treatment for EOA; however, several physical modalities are commonly used in this population. The purpose of this paper is to investigate the role of physical agents in the treatment of EOA. A technical expert panel (TEP) of 8 medical specialists with expertise in physical agent modalities and musculoskeletal conditions performed the review following the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and …

First β-decay spectroscopy of $^{135}$In and new $β$-decay branches of $^{134}$In

2021

International audience; The $\beta$ decay of the neutron-rich $^{134}$In and $^{135}$In was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number $Z=50$ above the $N=82$ shell. The $\beta$-delayed $\gamma$-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three $\beta$-decay branches of $^{134}$In were established, two of which were observed for the first time. Population of neutron-unbound states decaying via $\gamma$ rays was identified in the two daughter nuclei of $^{134}$In, $^{134}$Sn and $^{133}$Sn, at…

Terapia basada en la compasión: regulación emocional, apego y salud mental

2021

Los sucesos vitales estresantes (SVE) pueden influir en nuestras vinculaciones, y con ello en: la compasión, la regulación emocional y en nuestro bienestar físico y psicológico. El objetivo del presente artículo es proponer e implementar un programa de intervención basado en la compasión (TBC). Tras la firma del consentimiento informado, los participantes (n=8) respondieron cuestionarios sobre vinculaciones afectivas, regulación emocional, compasión, (SVE) y emocionalidad. Nuestros resultados previos al tratamiento muestran perfiles de desajuste marcados por la vinculación insegura, las dificultades de regulación, la baja autocompasión y la elevada emocionalidad negativa. Tras el tratamient…

How efficacious is the combination of substitute bone graft with autogenous bone graft in comparison with substitute bone graft alone in the horizont…

2021

A systematic review (SR) was conducted to answer the following focused question based on PICO strategy: In patients who were submitted to horizontal guided bone regeneration, "how efficacious is the combination of substitute bone graft with autogenous bone graft in comparison with substitute bone graft alone, in terms of bone gain?"MEDLINE (PubMed), Scopus, Embase, Web of Science databases were searched, and hand searches were made up to June 2021, to find randomized clinical trials comparing the clinical effects of autogenous bone graft + substitute bone graft versus substitute bone graft alone in the treatment of horizontal guided bone regeneration.Four trials representing 109 individuals…

A composite indicator index as a proxy for measuring the quality of water supply as perceived by users for urban water services

2021

Abstract The objective of this study is to develop a composite indicator (CI) to measure the quality of water supply based on the variables that are considered to affect users’ perceptions of water supply quality. The proposed CI includes six relevant aspects that determine users’ perceptions of water supply quality (network quality, water quality, water price, complaints, inconvenience caused by upgrading the network, and continuity of service) in a simple, economical, and objective way, using multi-criteria decision analysis (MCDA) with weights based on data envelopment analysis (DEA). The CI was applied to 32 municipalities in the metropolitan area of Valencia (Spain). The results show t…

Soft-photon radiative corrections to the e−p→e−pl−l+ process

2021

We calculate the leading-order QED radiative corrections to the process ${e}^{\ensuremath{-}}p\ensuremath{\rightarrow}{e}^{\ensuremath{-}}p{l}^{\ensuremath{-}}{l}^{+}$ in the soft-photon approximation, in two different energy regimes which are of relevance to extract nucleon structure information. In the low-energy region, this process is studied to better constrain the hadronic corrections to precision muonic hydrogen spectroscopy. In the high-energy region, the beam-spin asymmetry for double-virtual Compton scattering allows us to directly access the generalized parton distributions. We find that the soft-photon radiative corrections have a large impact on the cross sections and are there…

Fine and Coarse Granular Argument Classification before Clustering

2021

Computational argumentation and especially argument mining together with retrieval enjoys increasing popularity. In contrast to standard search engines that focus on finding documents relevant to a query, argument retrieval aims at finding the best supporting and attacking premises given a query claim, e.g., from a predefined collection of arguments. Here, a claim is the central part of an argument representing the standpoint of a speaker with the goal to persuade the audience, and a premise serves as evidence to the claim. In addition to the actual retrieval process, existing work has focused on (1) classifying polarities of arguments into supporting or opposing, (2) classifying arguments …

Cesare Pavese’s Il campo di granturco: geographical trails

2021

This article proposes a critical reading of the short story, Il campo di granturco [The Cornfield], by Cesare Pavese. Methodologically and epistemologically, it tries to highlight the existing consonances between literature and geography with regards to three key concepts – the border, the landscape, and the territory – that form an indissoluble connection between human beings and the world. In geography, border, landscape, and territory are regarded as key cognitive mediators within the interaction between the Self and the world. What purpose, then, does reading Pavese from a geographic perspective serve? Why do his works matter within the context of cultural geography? Pavese’s Il campo …

First β -decay spectroscopy of In135 and new β -decay branches of In134

2021

First -decay spectroscopy of and new -decay branches of

2021

19 pags., 14 figs., 3 tabs.

Pollination efficiency and pollen limitation in bistaminate vs tetrastaminate Lamiaceae

2021

Rachat d’actions en période de crise sanitaire : réactions boursières, valorisation et motivations implicites des dirigeants

2021

International audience

Les augmentations de capital en numéraire : le cas de la société MARACAT

2021

International audience

First β-decay spectroscopy of In-135 and new β-decay branches of In-134

2021

The beta decay of the neutron-rich In-134 and In-135 was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number Z = 50 above the N = 82 shell. The beta-delayed gamma-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three beta-decay branches of In-134 were established, two of which were observed for the first time. Population of neutron-unbound states decaying via gamma rays was identified in the two daughter nuclei of In-134, Sn-134 and Sn-133, at excitation energies exceeding the neutron separation energy by…

Asymmetric Addition and Cycloaddition Reactions with Ylidene‐Five‐Membered Heterocycles

2021

Five-membered heterocycles bearing an exocyclic double bond have been successfully used as substrates in asymmetric addition and cycloaddition reactions. Ylidene-heterocycles are attractive substrates due to their high functionalization and the presence of an electrophilic conjugated exocyclic double bound that can participate in nucleophilic addition reactions as well as cycloaddition reactions, which may be triggered by the formation of aromatic intermediates or products in many cases. During the last decades, catalytic methodologies have been developed using ylidene-heterocycles as substrates in order to synthesize useful optically active heterocyclic derivatives. 4-Ylidene-pyrazol-5-one…

Urinary bladder enlargement across nine rodent models of diabetes: correlations with glucose and insulin levels

2021

AbstractThe urinary bladder is markedly enlarged in the type 1 diabetes mellitus model of streptozotocin (STZ)-injected rats, but much less data exist for models of type 2 diabetes (T2DM). Diabetic polyuria has been proposed to explain bladder enlargement. We have collected data on bladder weight and blood glucose from 16 studies representing 9 distinct rodent diabetes (7 T2DM) and obesity models; some included arms with diets and/or pharmacological treatments. Data were analyzed for bladder enlargement and for correlations between bladder weight on the one and glucose levels on the other hand. Our data confirm major bladder enlargements in STZ rats, minor if any enlargement in fructose-fed…

Pseudospectrum of Reissner-Nordström black holes: Quasinormal mode instability and universality

2021

Black hole spectroscopy is a powerful tool to probe the Kerr nature of astrophysical compact objects and their environment. The observation of multiple ringdown modes in gravitational waveforms could soon lead to high-precision gravitational spectroscopy, so it is critical to understand if the quasinormal mode spectrum is stable against perturbations. It was recently shown that the pseudospectrum can shed light on the spectral stability of black hole quasinormal modes. We study the pseudospectrum of Reissner-Nordstr\"om spacetimes and we find a spectral instability of scalar and gravitoelectric quasinormal modes in subextremal and extremal black holes, extending similar findings for the Sch…

The Role of Nutritional Lifestyle and Physical Activity in Multiple Sclerosis Pathogenesis and Management: A Narrative Review

2021

Studies on the role of nutritional factors and physical activity (PA) in the pathogenesis of multiple sclerosis (MS) go back a long time. Despite the intrinsic difficulty of studying their positive or negative role in MS, the interest of researchers on these topics increased during the last few decades, since the role of diet has been investigated with the perspective of the association with disease-modifying drugs (DMD). The association of DMD, diets, and PA might have an additive effect in modifying disease severity. Among the various diets investigated (low-carbohydrate, gluten-free, Mediterranean, low-fat, fasting-mimicking, and Western diets) only low-carbohydrate, Mediterranean, and f…

“Distant woods”: the matter of books and the modernist pastoral

2021

International audience; This paper is part of a broader project that aims to examine the importance of the materials used in the making of illustrated books from a medial and ecocritical perspective. I focus on a specific case study in which I explore the attitude to nature encapsulated in the use of and reference to wood in British interwar wood-engraved illustrated books. My departure point is the English artist Paul Nash’s Places (Heinemann, 1922), a short collection of prose poems and wood-engravings. An elegy produced at a time when Nash was trying to come to terms with the aftermath of the First World War, Places was published after he made the great war paintings depicting the human …

High-Voltage Injuries by Contact With Overhead Lines: Case Reports of Two Young Girls

2021

Abstract High-voltage burn injuries are rare in the pediatric age group, but can lead to devastating, severe sequelae. We present the cases of two young girls who suffered high-voltage burn injuries due to direct contact with overhead power lines. Both patients came from difficult psychosocial backgrounds. The injuries resulted in severe long-term consequences and functional deficits.

Studying and improving Mathematics instruction in secondary schools in Spain study group (grupo de estudio SiMiS1 )

2021

El objetivo de este artículo es presentar y justificar el diseño de POEMat.ES, una pauta de observación de acciones del profesor de matemáticas en clase. POEMat.ES ha sido desarrollado por un grupo de investigadores con perfiles diversos en cuanto a experiencia docente e investigadora, a fin de sistematizar la observación de la práctica de enseñanza para entender e interpretar con precisión el proceso de enseñanza de matemáticas en educación secundaria en el contexto español. El diseño de POEMat.ES se ha basado en modelos específicos del conocimiento del profesor de matemáticas. La construcción del instrumento se aborda desde dos aproximaciones complementarias: se proponen categorías de obs…

Contribution of the gas-phase reaction between hydroxyl radical and sulfur dioxide to the sulfate aerosol over West Pacific

2021

Sulfate is among the major components of atmospheric aerosols or fine particulate matters. Aerosols loaded with sulfate result in low air quality, damage to ecosystems, and influences on climate change. Sulfate aerosols could originate from that directly emitted to the atmosphere and that produced by atmospheric physicochemical processes. The latter is generated from sulfur dioxide (SO2) via oxidation either in the gas phase reactions or in the aqueous phase. Several mechanisms of SO2 oxidation have been proposed, but the differentiation of the various mechanisms and identification of the sources remain challenging. To meet this need, a new method to estimate the contribution of the gas-pha…

Classification of the core-collapse supernova explosion mechanism with learned dictionaries

2021

Core-collapse supernovae (CCSN) are a prime source of gravitational waves. Estimations of their typical frequencies make them perfect targets for the current network of advanced, ground-based detectors. A successful detection could potentially reveal the underlying explosion mechanism through the analysis of the waveform. This has been illustrated using the SupernovaModel Evidence Extractor (SMEE; Logue et al. (2012)), an algorithm based on principal-component analysis and Bayesian model selection. Here, we present a complementary approach to SMEE based on (supervised) dictionary-learning and show that it is able to reconstruct and classify CCSN signals according to their morphology. Our wa…

Organizing for collaboration in simulation-based environments: An affordance perspective

2021

The ICE-Q: A tool for the assessment of Psychological Adaptation Processes (PAP) in Isolated and Confined Extreme (ICE) environments

2021

International audience; Life in Isolated and Confined Extreme (ICE) environments poses important challenges and constraints and therefore to human adaptation and more particularly to the processes of psychological adaptation (PAP). Contemporary models view psychological adaptation as a dynamic process of constant adjustment to the environment, encompassing changes in physical, social and psychological demands and constraints (Cramer, 2000; Lazarus, 1991; Nicolas et al., 2017). The literature lacks valid and reliable measures of the psychological processes engaged in adaptation to the ICE environment (Sandal, Leon, & Palinkas, 2006). Monitoring can provide early warning of mission- and healt…

KS0- and (anti-)Λ-hadron correlations in pp collisions at √s = 13 TeV

2021

Two-particle Azimuthal correlations are measured with the ALICE apparatus in pp collisions at √s=13 TeV to explore strangeness- and multiplicity-related effects in the fragmentation of jets and the transition regime between bulk and hard production, probed with the condition that a strange meson (KS0) or baryon (Λ) with transverse momentum pT> 3 GeV/c is produced. Azimuthal correlations between kaons or Λ hyperons with other hadrons are presented at midrapidity for a broad range of the trigger (3<pTtrigg<20 GeV/c) and associated particle pT (1 GeV/c<pTassoc<pTtrigg), for minimum-bias events and as a function of the event multiplicity. The near- and away-side peak yields are compared for the…

Opto-thermally controlled beam steering in nonlinear all-dielectric metastructures

2021

Reconfigurable metasurfaces have recently gained a lot of attention in applications such as adaptive meta-lenses, hyperspectral imaging and optical modulation. This kind of metastructure can be obtained by an external control signal, enabling us to dynamically manipulate the electromagnetic radiation. Here, we theoretically propose an AlGaAs device to control the second harmonic generation (SHG) emission at nanoscale upon optimized optical heating. The asymmetric shape of the used meta-atom is selected to guarantee a predominant second harmonic (SH) emission towards the normal direction. The proposed structure is concurrently excited by a pump beam at a fundamental wavelength of 1540 nm and…

« « Goûtez l’Ardèche », valorisation d’une marque collective »

2021

International audience

Monopoles and dualities in 3d N=2 quivers

2021

Seiberg-like dualities in 2+1d quiver gauge theories with 4 supercharges are investigated. We consider quivers made of various combinations of classical gauge groups U(N), Sp(N), SO(N) and SU(N). Our main focus is the mapping of the supersymmetric monopole operators across the dual theories. There is a simple general rule that encodes the mapping of the monopoles upon dualizing a single node. This rule dictates the mapping of all the monopoles which are not dressed by baryonic operators. We also study more general situations involving baryons and baryon-monopoles, focussing on three examples: SU−Sp, SO−SO and SO−Sp quivers.

Athletes’ subjective evaluations of the implementation of dual career measures

2021

Primary HBB gene mutation severity and long-term outcomes in a global cohort of β-thalassaemia

2021

In β-thalassaemia, the severity of inherited β-globin gene mutations determines the severity of the clinical phenotype at presentation and subsequent transfusion requirements. However, data on associated long-term outcomes remain limited. We analysed data from 2109 β-thalassaemia patients with available genotypes in a global database. Genotype severity was grouped as β0 /β0 , β0 /β+ , β+ /β+ , β0 /β++ , β+ /β++ , and β++ /β++ . Patients were followed from birth until death or loss to follow-up. The median follow-up time was 34·1 years. Mortality and multiple morbidity outcomes were analyzed through five different stratification models of genotype severity groups. Interestingly, β0 and β+ mu…