bluuebunny/crossref_metadata_2025 huggingface dataset:
What Skills are Involved in Open Virtual Mobility? A Students’ Perspective from Italy and Spain
Authors: Tur Gemma , Poce Antonella , Rosaria Maria , Villatoro Sofia
Published: September 2021

Virtual Mobility can enhance curriculum development in Higher Education by promoting international co-design and collaborative work among students and lecturers through the use of Information and Communication Technologies (ICT). During the spread of COVID-19 pandemic, virtual forms of students’ mobility increased considerably, allowing learners to continue or start VM experience even if boarders and campuses around the world were closed. The recent outbreak in interest and activity related to VM requires educational researchers to study this learning practice in depth in order to provide data and effective indications in terms of skills promotion. During the academic year 2020-2021, a team of lecturers of Teacher Education programs from the Roma Tre University (Rome, Italy) and the University of the Balearic Islands (Balearic Islands, Spain) agreed to work in open digital environment, organising specific VM activities for 38 university students. Specifically, students were asked to meet online, design and collaboratively create, in groups from the two countries, Open Digital Resources (OERs) to be used in international online contexts with their future pupils. This paper presents the design of the learning experience together with self-assessment results of the professional and transverse competences promoted. Conclusions also reflect on the new improvements to be done for new editions of the activity.
Creative Methodologies: Designing a Framework for Teacher Reflection and Authorship
Authors: Carolei Paula
Published: September 2021

This research has as its main objective to create, test and improve methodologies and artefacts that help teachers to reflect to transform their practices, making them more creative. Actions are expected that go beyond envisioned planning, but that the teacher is able to concretize, evaluate and continuously improve his/her pedagogical actions. This paper describes the creation of a framework that aims to promote reflection on creative methodologies by teachers, helping them to make explicit the creative movements they already make highlighting their authorial moments, their limits, challenges and difficulties, as well as getting to know new creative possibilities.The data used for the initial construction of this framework was collected in two online courses on Design of Pedagogical Strategies, in which the participating teachers had to describe their teaching practices. From the qualitative analysis of this data, we mapped the challenges and strains in the construction of pedagogical strategies, as well as the fashions and trends that appeared in the discourses. An analysis of formative needs was made and a categorization was created based on a theoretical reflection and critical analysis of the trends presented in the teachers’ data, emphasizing the importance of teachers’ authorial and creative stances in their methodological construction. In this article, we will describe the mapped data, the categorization and the theoretical foundations that supported the construction of this framework. We will also describe the categories and the first validation phase already carried out as well as the next steps for a large-scale application.
The Perceptions of English Preparatory School Instructors on Online Education through the Community of Inquiry in the Covid-19 Process
Authors: Akay Sabire , Gültekin Kürşat , Şafak Eda , Çakir Sueda , Liman Ayşegül
Published: September 2021

The purpose of this study is to investigate the perceptions and experiences of English preparatory school instructors from the perspective of the Community of Inquiry (CoI) framework in online education settings during the Covid-19 pandemic. The study employs a mixed-methods research design, specifically concurrent triangulation design. The quantitative phase of the study includes a survey completed by 140 prep school instructors using snowball sampling. The survey examines the perceptions of participants concerning the three elements of the community of inquiry, teaching presence, social presence and cognitive presence, as well as the challenges the participants faced during online education. The qualitative phase comprises semi-structured interviews with 6 of the participants who took the survey. The interview questions focus on the advantages and disadvantages of online education along with the participants’ efforts to create interaction in their classes. Data from the survey were analysed using SPSS in the form of descriptive statistics with means, percentages and standard deviations. The interviews were recorded, transcribed and coded through thematic content analysis. The results of the survey indicate that while a slightly significant positive correlation was found between overall COI, teaching presence and social presence with online teaching experience, no significant correlation was found between online teaching experience and cognitive presence with an r score close to .0. Furthermore, prep school instructors create interaction during online teaching using collaborative tasks, Web 2.0 tools and personal information from students. The findings from the interviews suggest the following emerging themes: assessment and feedback, social interaction and getting to know students, convenience, technical problems, and attendance issues.
Human resource management in the contemporary enterprises
Authors: Kudła Beata Małgorzata
Published: September 2021

Every enterprise nowadays needs efficient management. The priority of good management is the company's success. Each enterprise has resources that are used in the business. Among these resources, the company also has human resources. They have a decisive influence on the functioning and development of an enterprise.  Human resources are closely related to the human side of the company and the relationship between employees and the company. The attitude towards the worker has changed constantly over the past century. As a result, it influenced the shaping of the concept of human resource management. They are employees employed in a given enterprise. The subject of the study is informative. The main aim of this article is to familiarize with the topic of human resource management in contemporary enterprises.
Role of social sphere in ensuring quality of working life
Authors: Kyryliuk Volodymyr , Ryabokon Ivan
Published: September 2021

This article is devoted to the study of social sphere and its impact on the process of ensuring quality of working life. Modern tendencies of social sphere and its main components development in the conditions of pandemic spread have been considered. Emphasis is placed on the fact that social sphere as an important component of society support promotes reproduction of human capital, raising living standards, formation of modern developed personality, which directly affects the rate of economic growth and social and economic progress and quality of working life. The essence and features of the relationship between social sphere and the quality of working life have been determined. Indicators of quality of working life, which characterize the level of income of employees; level of labor organization; meaningfulness of labor; employees' career advancement; development of industrial democracy; respect for the individual; perfection of sanitary and hygienic conditions; the state of relations between the trade union and the administration have been reflected. Political, organizational, technological, economic and other factors that shape and influence the level of quality of working life along with the influence of the social sphere have been studied. Subjective factors related to the presence or absence of motivational and personal characteristics necessary for the realization of labor potential of individuals have been described. The key problems of social sphere development and quality of working life in Ukraine are highlighted, among which the insufficient level of social sphere financing has been singled out, which in turn leads to reduction of social infrastructure institutions, critical condition of their fixed capital, low level of salaries in state social institutions. Possible directions of solving the main problems in social sphere in context of interaction of the state, business and society have been offered.
Financial technologies for bank financial stability management in economical turbulence conditions
Authors: Babenko Maksim
Published: September 2021

The development of the global economy is characterized by an increase in turbulence and the restoration of a cyclic crisis component of development. An important driving force for the development of the economy is the financial stability of the bank, which manifests itself at all levels – from the micro level to the global economic system. The market of banking services is the most dynamic segment of the financial market, where the number of subjects and spectrum of products, the level of service and technologies is constantly changing.

The priority instrument for managing the financial stability of the bank in the conditions of turbulence of the economy is a financial engineering, which is a system of synergistic functioning, pre-developed and implemented combinations and processes (namely the interaction of financial innovations, financial technologies and financial instruments) in financial management of the bank due to the release of innovation resource reserve. to ensure the financial stability of the bank.

Financial innovations include financial instruments and financial technologies. Financial technologies are technologically supported by financial innovations, which can lead to new business models, programs, processes or products that have a significant impact on financial markets and institutions that provide financial services.

It is proposed to manage the financial stability of the bank in the conditions of turbulence of the economy of Ukraine to introduce a process approach that is focused on improving the motivation of banking institutions and a clear distribution of their responsibilities; achievement of internal transparency for guidance, obtaining information in real time due to the development and strengthening of the system of current and prospective control; improving the quality and predictability of the results of work; providing trust of stakeholders to banking institutions and confidence in the financial stability of its functioning; minimization of expenses and reducing the terms of organization of technological cycles of banking operations.

In order to ensure the financial stability of the bank on the basis of financial technologies, the state of turbulence of the economy should be taken into account, react promptly to its changes that require enhanced control.
Managing small and medium-sized enterprises in the time of crisis
Authors: Włoch Waldemar Piotr
Published: September 2021

The subject of the article is managing small and medium-sized enterprises in the time of crisis. In the conditions of the modern market economy, the method to overcome the ever-growing competition is the ability to introduce constant changes and innovations in the company. The only solution is to make every employee aware of the fact that he is worth as much for the company as he has inventiveness and the ability to innovate. At the same time, one must be aware of a fundamental mistake, for example by the Americans when they lose the race with the Japanese. Well, often some workers and managers are treated only as contractors and not as creative persons.
Public-private partnership as a mechanism for effective management of state property
Authors: Chepelenko Anzhelika
Published: September 2021

This article examines the global experience of using public-private partnerships and its impact (positive and negative) on economic growth. Factors influencing sustainable technological progress and state policy on opportunities and economic benefits of Ukraine due to the expansion of public-private partnership in the context of globalization are identified. A methodical set of tools is used, which allows public administration representatives not only to realistically assess the resource potential of state property, but also to be able to effectively manage it in conditions of rapid technology development, limited funding and impossibility and / or inexpediency of state property.

The study proves that public-private partnership in Ukraine has not gained much popularity, although changes in all areas of activity encourage a new perception and attitude to public-private partnership through:  attractiveness of investments in public sector development for foreign companies and sole proprietors;  competitiveness, transparency and the ability to have the best partners among private partners; risk parity that can be placed on the partner, which can reduce it more effectively; profitability, preferences and reduction of the tax burden on business; high quality and prompt project development, thanks to the experience of a private partner in a particular field; the ability of the public partner to control the development and implementation of the project; support for new business ideas, innovative approach and maximizing the experience of private partners.
Quantifying the Impact of the Large Magellanic Cloud on the Structure of the Milky Way’s Dark Matter Halo Using Basis Function Expansions
Authors: Garavito-Camargo Nicolás , Besla Gurtina , Laporte Chervin F. P. , Price-Whelan Adrian M. , Cunningham Emily C. , Johnston Kathryn V. , Weinberg Martin , Gómez Facundo A.
Published: September 2021

Indications of disequilibrium throughout the Milky Way (MW) highlight the need for compact, flexible, non-parametric descriptions of phase–space distributions of galaxies. We present a new representation of the current dark matter (DM) distribution and potential derived from N-body simulations of the MW and Large Magellanic Cloud (LMC) system using basis function expansions (BFEs). We incorporate methods to maximize the physical signal in the representation. As a result, the simulations of 108 DM particles representing the distorted MW(MW+LMC) system can be described by ∼236(2067) coefficients. We find that the LMC induces asymmetric perturbations (odd l, m) to the MW’s halo, which are inconsistent with oblate, prolate, or triaxial halos. Furthermore, the energy in high order even modes (l, m > 2) is similar to average triaxial halos found in cosmological simulations. As such, the response of the MW’s halo to the LMC must be accounted for in order to recover the imprints of its assembly history. The LMC causes the outer halo (>30 kpc) to shift from the disk center of mass (COM) by ∼15–25 kpc at present day, manifesting as a dipole in the BFE and in the radial velocities of halo stars. The shift depends on the LMC’s infall mass, the distortion of the LMC’s halo and the MW halo response.Within 30 kpc, halo tracers are expected to orbit the COM of the MW’s disk, regardless of LMC infall mass. The LMC’s halo is also distorted by MW tides; we discuss the implications for its mass loss and the subsequent effects on current Magellanic satellites.
Probing Intra-Halo Light with Galaxy Stacking in CIBER Images
Authors: Cheng Yun-Ting , Arai Toshiaki , Bangale Priyadarshini , Bock James J. , Chang Tzu-Ching , Cooray Asantha , Feder Richard M. , Korngut Phillip M. , Lee Dae Hee , Liu Lunjun , Matsumoto Toshio , Matsuura Shuji , Nguyen Chi H. , Sano Kei , Tsumura Kohji , Zemcov Michael
Published: September 2021

We study the stellar halos of 0.2 ≲ z ≲ 0.5 galaxies with stellar masses spanning M
* ∼ 1010.5 to 1012
M
⊙ (approximately L
* galaxies at this redshift) using imaging data from the Cosmic Infrared Background Experiment (CIBER). A previous CIBER fluctuation analysis suggested that intra-halo light (IHL) contributes a significant portion of the near-infrared extragalactic background light (EBL), the integrated emission from all sources throughout cosmic history. In this work, we carry out a stacking analysis with a sample of ∼30,000 Sloan Digital Sky Survey (SDSS) photometric galaxies from CIBER images in two near-infrared bands (1.1 and 1.8 μm) to directly probe the IHL associated with these galaxies. We stack galaxies in five sub-samples split by brightness and detect an extended galaxy profile beyond the instrument point-spread function (PSF) derived by stacking stars. We jointly fit a model for the inherent galaxy light profile plus large-scale one- and two-halo clustering to measure the extended galaxy IHL. We detect nonlinear one-halo clustering in the 1.8 μm band at a level consistent with numerical simulations. By extrapolating the fraction of extended galaxy light we measure to all galaxy mass scales, we find ∼30%/15% of the total galaxy light budget from galaxies is at radius r > 10/20 kpc, respectively. These results are new at near-infrared wavelengths at the L
* mass scale and suggest that the IHL emission and one-halo clustering could have appreciable contributions to the amplitude of large-scale EBL background fluctuations.
Characteristic Scales of Magnetic Switchback Patches Near the Sun and Their Possible Association With Solar Supergranulation and Granulation
Authors: Fargette Naïs , Lavraud Benoit , Rouillard Alexis P. , Réville Victor , Dudok De Wit Thierry , Froment Clara , Halekas Jasper S. , Phan Tai D. , Malaspina David M. , Bale Stuart D. , Kasper Justin C. , Louarn Philippe , Case Anthony W. , Korreck Kelly E. , Larson Davin E. , Pulupa Marc , Stevens Michael L. , Whittlesey Phyllis L. , Berthomier Matthieu
Published: September 2021

Parker Solar Probe (PSP) data recorded within a heliocentric radial distance of 0.3 au have revealed a magnetic field dominated by Alfvénic structures that undergo large local variations or even reversals of the radial magnetic field. They are called magnetic switchbacks, they are consistent with folds in magnetic field lines within a same magnetic sector and are associated with velocity spikes during an otherwise calmer background. They are thought to originate either in the low solar atmosphere through magnetic reconnection processes or result from the evolution of turbulence or velocity shears in the expanding solar wind. In this work, we investigate the temporal and spatial characteristic scales of magnetic switchback patches. We define switchbacks as a deviation from the nominal Parker spiral direction and detect them automatically for PSP encounters 1, 2, 4, and 5. We focus in particular on a 5.1 day interval dominated by switchbacks during E5. We perform a wavelet transform of the solid angle between the magnetic field and the Parker spiral and find periodic spatial modulations with two distinct wavelengths, respectively consistent with solar granulation and supergranulation scales. In addition we find that switchback occurrence and spectral properties seem to depend on the source region of the solar wind rather than on the radial distance of PSP. These results suggest that switchbacks are formed in the low corona and modulated by the solar surface convection pattern.
Predictions of Astrometric Jitter for Sun-like Stars. II. Dependence on Inclination, Metallicity, and Active-region Nesting
Authors: Sowmya K. , Nèmec N.-E. , Shapiro A. I. , Işık E. , Witzke V. , Mints A. , Krivova N. A. , Solanki S. K.
Published: September 2021

Ultra-precise astrometry from the Gaia mission is expected to lead to astrometric detections of more than 20,000 exoplanets in our Galaxy. One of the factors that could hamper such detections is the astrometric jitter caused by the magnetic activity of the planet host stars. In our previous study, we modeled astrometric jitter for the Sun observed equator-on. In this work, we generalize our model and calculate the photocenter jitter as it would be measured by the Gaia and Small-JASMINE missions for stars with solar rotation rate and effective temperature, but with various values of the inclination angle of the stellar rotation axis. In addition, we consider the effect of metallicity and of nesting of active regions (i.e., the tendency of active regions to emerge in the vicinity of each other). We find that, while the jitter of stars observed equator-on does not have any long-term trends and can be easily filtered out, the photocenters of stars observed out of their equatorial planes experience systematic shifts over the course of the activity cycle. Such trends allow the jitter to be detected with continuous measurements, in which case it can interfere with planet detectability. An increase in the metallicity is found to increase the jitter caused by stellar activity. Active-region nesting can further enhance the peak-to-peak amplitude of the photocenter jitter to a level that could be detected by Gaia.
The Study of Mass to Light Ratios in Cluster of Galaxies
Authors: Long Henry A. , Dave Parth , Affleck Pierce , Parimal Srivats
Published: September 2021

Our analysis of observed Hickson Compact Groups shows that there is a strong and statistically significant (p = 0.002) relationship between mass to light ratio (M/LR) and group mass, with more massive compact groups having substantially higher M/LRs, scaling roughly with mass to the 0.76 ± 0.09 power. This relationship holds even after dropping clusters of galaxies whose log mass differs from the mean log mass by more than two standard deviations. For a sample of Abell clusters of galaxies, a similar but weaker relationship is observed, with more massive galaxies having a M/LR that scales with mass to the 0.73 ± 0.09 power (p = 0.010). This relationship implies that heavier galaxy clusters have dramatically higher fractions of dark matter.
Intertextuality as Subversive Moral Metacomment in the Novels of Anita Brookner
Authors: Williams-Wanquet Eileen
Published: September 2021

Il est possible de se fonder sur des éléments autobiographiques pour explorer les phénomènes d’intertextualité si fréquents dans les vingt-quatre brefs romans d’Anita Brookner. Ces références intertextuelles ont souvent été ignorées, ou bien considérées comme signe de snobisme intellectuel. Même si la critique est assez unanime à reconnaître l’élégance classique du style de Brookner, concis et contrôlé, ainsi que son intuition psychologique et son ironie, ses œuvres ont trop souvent été lues comme des versions allégées et assez ennuyeuses de romances de type Harlequin, anti-féministes et résolument pré-modernistes. Cet article montre que la fiction très cohérente de Brookner pose continuellement la même question éthique : « Comment aurais-je dû vivre ma vie ? ». Brookner utilise de nombreuses références intertextuelles (à la fois à la littérature et à l’art) pour offrir une réflexion philosophique sur la constitution du sujet, les capacités de l’être humain, et le dilemme éthique fondamental et éternel qu’est la division entre soi et autrui — grande question éthique que Zygmunt Bauman définit comme « mise en synchronie des conduites individuelles et du bien-être collectif » (4). En éclairant et en interrogeant la tradition européenne du dualisme cartésien, tel qu’il se manifeste dans l’humanisme libéral, ces romans proposent une réflexion résolument post-moderne sur le rationalisme chrétien de la modernité, qui sous-tend toute une culture et trouve son expression dans sa littérature.
Anita Brookner: Necromantic
Authors: Tuite Clara
Published: September 2021

Anita Brookner est venue à la fiction tardivement, publiant son premier roman à l’âge de cinquante-trois ans, après une brillante carrière d’historienne de l’art français. Ce simple fait soulève bien des questions concernant son œuvre. Comment expliquer le rapport entre l’histoire de l’art et les romans, la non-fiction et la fiction, l’art français et la littérature anglaise ? Cet article envisage ces questions en se penchant sur le rôle majeur de l’intertextualité dans les romans de Brookner. Il montre non seulement la cohérence des rapports intertextuels dans les deux formes, critique et romanesque, de son écriture, mais révèle aussi un mode de fonctionnement particulièrement prégnant, dans ces deux formes : il s’agit de la logique particulière qui guide la carrière de l’homme de lettres du xix e  siècle, une carrière que Brookner avait analysée en tant qu’universitaire, et qu’elle a elle-même fini par embrasser, comme si elle y avait été destinée. L’article se concentre sur les premiers romans, correspondant au moment de la transition entre ces deux carrières de l’auteur, et analyse les rapports de ressemblance et d’engendrement entre sa fiction et sa production critique, tant dans le domaine de l’art que de la littérature, pour montrer à quel point pratique critique et production créative sont intimement imbriquées.
Anita Brookner and Julian Barnes: Paths Crossing
Authors: Guignery Vanessa
Published: September 2021

En 1984, Anita Brookner et Julian Barnes apparurent tous deux sur la liste du Booker Prize, respectivement pour Hotel du Lac et Flaubert’s Parrot . Bien que ces deux romans et l’œuvre fictionnelle des deux auteurs dans leur ensemble présentent de grandes différences, ce qui explique qu’ils n’aient pas encore donné lieu à des travaux critiques comparatifs, les chemins de Brookner et Barnes se sont croisés à plusieurs reprises, en partie en raison d’intérêts communs pour les arts visuels mais aussi pour la culture et la littérature françaises. Une brève présentation de ces points de convergence est suivie des réponses de Julian Barnes à trois questions relatives à Anita Brookner.
Nouvelles approches pour l’analyse des échelles de mesure en GRH : une illustration dans le domaine de l’analyse des risques psychosociaux
Authors: Jaotombo Franck , Lacroux Alain
Published: September 2021

Pouvoir mesurer avec précision et fiabilité les construits latents multidimensionnels qui reflètent des attitudes comme la satisfaction, l’implication ou le bien-être au travail constitue à la fois un impératif managérial et un défi méthodologique pour la GRH. Les recherches récentes ont montré que les procédures de validation traditionnelles des échelles de mesure présentent des limites, notamment liées à des hypothèses très restrictives sur les modèles de mesure (par exemple la non prise en compte des contributions croisées dans les modèles factoriels, ou l’impossibilité de tenir simultanément compte des effets globaux et spécifiques des construits multidimensionnels). De nouveaux développements méthodologiques ont permis de lever certaines de ces restrictions et proposer des modèles plus réalistes, avec de meilleures qualités psychométriques et un plus fort pouvoir prédictif. Le présent article se fixe pour objectif d’illustrer ces développements méthodologiques récents, encore très peu diffusés dans les travaux francophones de gestion. Nous présentons une approche mixte, centrée sur les variables puis centrée sur les individus. Le construit proposé à titre d’illustration est une traduction française du Health and Safety Executive Management Standards Indicator Tool (HSE MSIT), utilisé dans plusieurs pays pour évaluer les normes de management et les conditions de travail favorables à la prévention des risques psychosociaux. Il a été testé sur un échantillon de 1 066 actifs français. Le modèle de mesure retenu dans cet article est un modèle bi-factoriel exploratoire (Bi-ESEM) à six facteurs spécifiques. En termes d’approche par les variables, ce modèle prédit efficacement et de façon nuancée la prévention des RPS comme l’absentéisme, le présentéisme et l’intention de quitter. En termes d’approche par les individus, il met en évidence 4 profils présentant des perceptions différenciées vis-à-vis des politiques de management de la santé et de la sécurité (les ignorés , les tranquilles , les impliqués , et les hauts potentiels) . Les bénéfices de cette approche pour le chercheur et le manager sont ensuite discutés.
Participations à l’ordre et participations conservatrices
Authors: Gourgues Guillaume , Le Mazier Julie
Published: September 2021

La participation à l’ordre désigne la mobilisation de volontaires, non professionnel·les, pour des missions de sécurité ou de défense, qu’elle soit ou non tolérée, approuvée voire initiée par l’État. Loin de remettre en cause les prérogatives de ce dernier, elle est ici étudiée comme une technique de gouvernement. Conçue pour retisser des liens sociaux, moraux ou politiques supposément défaits, en façonnant l’engagement, la « civilité » ou le « civisme », ou encore les sociabilités locales, elle vise à produire de « bons citoyens » ou « bonnes citoyennes ». On interroge finalement la façon dont la participation à l’ordre peut ou non être comprise, selon les contextes dans lesquels elle s’ancre, comme une participation conservatrice, c’est-à-dire contribuant à la reproduction de l’ordre, non pas seulement sécuritaire, mais social et politique.
L’art de la guerre dans un monde hyperconnecté
Authors: Meny Lionel
Published: September 2021

L’hyperconnectivité qui résulte de la conjonction de nombreuses technologies (réseau, Data , intelligence artificielle – IA –, automatisation, Internet des objets – IoT ) porte la promesse, tant pour des usages privés que professionnels, d’une mise en relation permanente, intuitive et interactive des individus, des machines et des données dont le volume croît de manière exponentielle. De par sa dimension globale, aussi technologique que sociétale, l’hyperconnectivité constitue une rupture qui transforme les espaces de conflictualité, bouleverse les notions de surprise et questionne la place de l’homme dans la guerre. Alors qu’elle innerve toute l’épaisseur de la chose militaire, du niveau stratégique au niveau tactique, comment en tirer tous les avantages et se prémunir des vulnérabilités qu’elle induit ?
Italie : engagement militaire au Sahel et relance de la coopération avec la France
Authors: Bartoli Gino
Published: September 2021

Dans un contexte géopolitique complexe, avec des situations sécuritaires et sociales précaires et des interventions militaires déjà en cours, l’engagement italien dans la taskforce Takuba démontre un intérêt accru de l’Italie pour la Bande sahélo-saharienne (BSS), région désormais incontournable au sein du concept stratégique de « Méditerranée élargie ». Les enjeux consistent à assurer la stabilisation de la région, endiguer les flux migratoires, entraver l’enracinement du terrorisme islamiste et relancer les relations franco-italiennes en matière de défense et de sécurité. Afin d’aborder efficacement ces enjeux il faudrait s’engager davantage au Sahel en optimisant l’emploi des forces italiennes dans cette région d’intérêt stratégique majeur.
Des risques avérés aux risques suspectés : particules atmosphériques et nanoparticules manufacturées
Authors: Marano Francelyne
Published: September 2021

La place de la recherche en environnement-santé est essentielle, car elle doit permettre de comprendre des relations particulièrement complexes entre les expositions multiples, à faibles doses, et donc difficiles à caractériser, et des pathologies survenant souvent à distance des expositions. Elle est nécessairement pluridisciplinaire, ce qui implique des efforts de dialogue entre les communautés : physico-chimistes, métrologistes, épidémiologistes, toxicologues, cliniciens ou encore spécialistes des sciences humaines. L’analyse de l’évolution au cours du XX e  siècle des connaissances sur les effets sanitaires des particules, d’abord dans les mines, puis dans l’atmosphère au cours des multiples épisodes de pollution et, enfin, de leurs effets chroniques, met en évidence le fait que c’est la conjonction de toutes ces données qui a conduit les pouvoirs publics nationaux et internationaux à réglementer et à agir. Elles ont permis une accélération des recherches portant sur les effets sanitaires des nanoparticules manufacturées au début du XXI e  siècle. Mais elles marquent aujourd’hui le pas, étant confrontées à la complexité des nanomatériaux et à la difficulté de réalisation des études épidémiologiques. Les autorités sanitaires sont dès lors confrontées à un problème difficile : comment gérer le risque en condition d’incertitude scientifique ?
Vers le développement d’un environnement plus favorable à la santé au sens du concept international « Une seule santé »
Authors: Bourillet Cédric
Published: September 2021

Santé et environnement sont des domaines étroitement liés. La dégradation de l’environnement sous l’effet des activités humaines expose les milieux (eau, air, sols), les écosystèmes ainsi que les populations humaines à des dommages sanitaires. Les conséquences liées au réchauffement climatique ainsi que la destruction des écosystèmes favorisent, notamment, l’émergence de maladies infectieuses transmissibles à l’homme. Les politiques de santé-environnement doivent donc désormais s’inscrire pleinement dans le concept international « Une seule santé » en adoptant une approche systémique et en travaillant notamment à la réduction des expositions environnementales, dès lors qu’elles présentent des risques pour la santé humaine, la santé animale ou la santé des écosystèmes.
La gestion du risque sanitaire en France : le défi de l’incertitude
Authors: Dab William
Published: September 2021

La gestion des risques sanitaires de l’environnement se heurte en France à des difficultés de différentes natures. L’organisation actuelle des pouvoirs publics ne permet pas de répondre efficacement aux défis de la santé environnementale. La capacité de décider en situation d’incertitude est un point-clé que l’invocation du principe de précaution ne suffit pas à traiter convenablement. Faire du risque sanitaire un objet global de politique publique est un préalable indispensable à l’élaboration d’une politique cohérente.
La santé environnementale : l’opportunité d’instaurer une gouvernance des risques multidimensionnelle et intégrée
Authors: Carré Florence , Gardon Jacques , Dévès Maud , Giamberini Laure , Mougin Christian , Eckert Nicolas , Grandjean Gilles
Published: September 2021

Dès 1990, l’OMS (1999) a perçu l’importance des déterminants environnementaux de la santé, ce qui l’a amenée à élargir sa définition de la santé de 1946 : « la santé environnementale comprend les aspects de la santé humaine, y compris la qualité de la vie, qui sont déterminés par les facteurs physiques, chimiques, biologiques, sociaux, psychosociaux et esthétiques de notre environnement. Elle concerne également la politique et les pratiques de gestion, de résorption, de contrôle et de prévention des facteurs environnementaux susceptibles d’affecter la santé des générations actuelles et futures. » Partant du constat de l’impact de la qualité des écosystèmes sur la santé humaine, le concept d’exposome a émergé. Celui-ci est défini comme la totalité des expositions à des facteurs environnementaux que subit un organisme humain, depuis sa conception jusqu’à sa fin de vie en passant par le stade du développement in utero (Wild, 2005). La notion de « One health » élaborée par Zindsstag et collaborateurs (2011) insiste en outre sur la bidirectionnalité des relations et appelle à développer des approches intégrées pour garantir une santé environnementale globale (humaine, végétale, animale et écosystémique). À partir de différents exemples, nous questionnons ici le niveau d’intégration disciplinaire et spatio-temporelle nécessaire à la prise en compte et à l’opérationnalisation du concept de santé environnementale globale. Nous montrons ainsi que la santé environnementale offre un cadre d’actions pour répondre au besoin urgent du développement d’une gouvernance des risques multidimensionnelle et intégrée.
Influence des managers d’interfaces lors d’un changement organisationnel : cas d’un processus d’intégration post-fusion
Authors: Thelisson Anne-Sophie , Kin Vichara
Published: September 2021

Les défis engendrés par la phase d’intégration des opérations de fusions-acquisitions – entre 40 à 60 % des fusions-acquisitions sont un échec selon Bauer et Matzler (2014) – conduisent à la création de « managers d’interfaces » (nommés boundary spanners dans la littérature sur les alliances stratégiques) qui semblent porter la responsabilité de la gestion opérationnelle de l’intégration post-fusion. Ces acteurs, en tant qu’individus positionnés aux frontières des deux entités engagées dans une fusion-acquisition, sont amenés à gérer la relation inter-organisationnelle. Dans cet article, nous tentons d’identifier les rôles et influences des managers d’interfaces dans le processus de l’intégration post-fusion.
« Ça laisse beaucoup de traces…  »
Authors: Vallet Patricia , Bouqueau Lucas , Charpentier Maude , Colon Cordélia , Garcia Mélanie
Published: September 2021

Ce texte a été écrit par quatre étudiants, quatre résidents en chrs et une formatrice. Il relate une expérience élaborée dans la rencontre, qui interroge le concept de participation afin d’envisager la place des personnes concernées dans un dispositif de formation en travail social. Comment les personnes concernées peuvent-elles prendre part à notre dispositif de formation ? Quelle contribution peuvent-elles apporter  ? Comment peuvent-elles bénéficier d’un tel projet ? Est-ce une possibilité d’être mieux reconnues, de participer à former des professionnels mieux qualifiés pour les accompagner ?
High order one-step methods for backward stochastic differential equations via Itô-Taylor expansion
Authors: Zhou Quan , Sun Yabing
Published: September 2021

In this work, by combining the Feynman-Kac formula with an Itô-Taylor expansion, we propose a class of high order one-step schemes for backward stochastic differential equations, which can achieve at most six order rate of convergence and only need the terminal conditions on the last one step. Numerical experiments are carried out to show the efficiency and high order accuracy of the proposed schemes.
ISALT: Inference-based schemes adaptive to large time-stepping for locally Lipschitz ergodic systems
Authors: Li Xingjie Helen , Lu Fei , Ye Felix X.-F.
Published: September 2021

Efficient simulation of SDEs is essential in many applications, particularly for ergodic systems that demand efficient simulation of both short-time dynamics and large-time statistics. However, locally Lipschitz SDEs often require special treatments such as implicit schemes with small time-steps to accurately simulate the ergodic measures. We introduce a framework to construct inference-based schemes adaptive to large time-steps (ISALT) from data, achieving a reduction in time by several orders of magnitudes. The key is the statistical learning of an approximation to the infinite-dimensional discrete-time flow map. We explore the use of numerical schemes (such as the Euler-Maruyama, the hybrid RK4, and an implicit scheme) to derive informed basis functions, leading to a parameter inference problem. We introduce a scalable algorithm to estimate the parameters by least squares, and we prove the convergence of the estimators as data size increases.

We test the ISALT on three non-globally Lipschitz SDEs: the 1D double-well potential, a 2D multiscale gradient system, and the 3D stochastic Lorenz equation with a degenerate noise. Numerical results show that ISALT can tolerate time-step magnitudes larger than plain numerical schemes. It reaches optimal accuracy in reproducing the invariant measure when the time-step is medium-large.
A stochastic collocation method based on sparse grids for a stochastic Stokes-Darcy model
Authors: Yang Zhipeng , Li Xuejian , He Xiaoming , Ming Ju
Published: September 2021

In this paper, we develop a sparse grid stochastic collocation method to improve the computational efficiency in handling the steady Stokes-Darcy model with random hydraulic conductivity. To represent the random hydraulic conductivity, the truncated Karhunen-Loève expansion is used. For the discrete form in probability space, we adopt the stochastic collocation method and then use the Smolyak sparse grid method to improve the efficiency. For the uncoupled deterministic subproblems at collocation nodes, we apply the general coupled finite element method. Numerical experiment results are presented to illustrate the features of this method, such as the sample size, convergence, and randomness transmission through the interface.
Blow up of negative initial-energy solutions of a system of nonlinear wave equations with variable-exponent nonlinearities
Authors: Messaoudi Salim A. , Talahmeh Ala A.
Published: September 2021

This work is concerned with a system of wave equations with variable-exponent nonlinearities acting in both equations. We, first, discuss the well-posedness then prove a blow up result for solutions with negative initial energy.
Plenty of wave solutions to the ill-posed Boussinesq dynamic wave equation under shallow water beneath gravity
Authors: Khater Mostafa M. A. ,   Department of Mathematics, Faculty of Science, Jiangsu University, 212013 Zhenjiang, China, Alfalqi S. H. , Alzaidi J. F. , Salama Samir A. , Wang Fuzhang ,   Department of Mathematics, Obour High Institute For Engineering and Technology, 11828 Cairo, Egypt,   Department of Mathematics, Faculty of Science and Arts, Mahayil Asir King Khalid University, Abha, Saudi Arabia,   Division of Biochemistry, Department of Pharmacology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia,   School of Mathematical and Statistics, Xuzhou University of Technology, Xuzhou 221018, Jiangsu, China,   Nanchang Institute of Technology, Nanchang 330044, China,   College of Computer Science and Technology, Huaibei Normal University, 235000 Huaibei, China
Published: September 2021

This paper applies two computational techniques for constructing novel solitary wave solutions of the ill-posed Boussinesq dynamic wave (IPB) equation. Jacques Hadamard has formulated this model for studying the dynamic behavior of waves in shallow water under gravity. Extended simple equation (ESE) method and novel Riccati expansion (NRE) method have been applied to the investigated model's converted nonlinear ordinary differential equation through the wave transformation. As a result of this research, many solitary wave solutions have been obtained and represented in different figures in two-dimensional, three-dimensional, and density plots. The explanation of the methods used shows their dynamics and effectiveness in dealing with certain nonlinear evolution equations.
An OGI model for personalized estimation of glucose and insulin concentration in plasma
Authors: Wang Weijie ,   School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China, Wang Shaoping , Geng Yixuan , Qiao Yajing , Wu Teresa ,   Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Beihang University, Beijing 100191, China,   School of Computing, Informatics, and Decision Systems Engineering, Arizona State University and College of Medicine, Mayo Clinic, Tempe AZ 85281, the USA
Published: September 2021

Plasma glucose concentration (PGC) and plasma insulin concentration (PIC) are two essential metrics for diabetic regulation, but difficult to be measured directly. Often, PGC and PIC are estimated from continuous glucose monitoring and insulin delivery data. Nevertheless, the inter-individual variability and external disturbance (e.g. carbohydrate intake) bring challenges for accurate estimations. This study is to estimate PGC and PIC adaptively by identifying personalized parameters and external disturbances. An observable glucose-insulin (OGI) dynamic model is established to describe insulin absorption, glucose regulation, and glucose transport. The model parameters and disturbances can be extended to observable state variables and be identified dynamically by Bayesian filtering estimators. Two basic Gaussian noise based Bayesian filtering estimators, extended Kalman filtering (EKF) and unscented Kalman filtering (UKF), are implemented. Recognizing the prevalence of non-Gaussian noise, in this study, two new filtering estimators: particle filtering with Gaussian noise (PFG), and particle filtering with mixed non-Gaussian noise (PFM) are designed and implemented. The proposed OGI model in conjunction with the estimators is evaluated using the data from 30 in-silico subjects and 10 human participants. For in-silico subjects, the OGI with PFM estimator has the ability to estimate PIC and PGC adaptively, achieving RMSE of PIC $ 9.49\pm3.81 $ mU/L, and PGC $ 0.89\pm0.19 $ mmol/L. For human, the OGI with PFM has the promise to identify disturbances ($ 95.46\%\pm0.65\% $ accurate rate of meal identification). OGI model provides a way to fully personalize the parameters and external disturbances in real time, and has potential clinical utility for artificial pancreas.
Obtención de la misma dureza por balanceo de fases en las aleaciones Al-Cu-Zn
Authors: Villegas-Cárdenas José D. , López-Hirata Víctor M. , Saucedo-Muñoz Maribel , Garfias García Elizabeth , Luna-Sánchez Rosa M. , Morales Rodriguez Miguel
Published: September 2021

Se prepararon 5 muestras de las aleaciones Al-Cu-Zn con diferentes porcentajes químicos, utilizando una metodología que pronostica la dureza en este tipo de aleaciones con la finalidad de que todas las muestras tengan la misma dureza (67 RB). Cada una de estas muestras fueron caracterizadas por DRX, Microscopia Electrónica de Barrido (MEB) y un durómetro, se observó el cambio en la estructura. Las muestras utilizadas en condición de equilibrio constan de tres fases que son η, α y τ’, sin embargo, en estas muestras se presentan otras fases como son las fases ε, β y θ. Este trabajo demuestra que es posible aun con los cambios en los porcentajes químicos que son drásticos, es posible tener la misma dureza. La principal causa que se encontró en este trabajo para mantener la misma dureza es el área de contacto de una zona blanca (compuesta por las fases η y ε) con respecto a las otras fases. Si el perímetro de contacto de la zona blanca está dentro de un cierto rango, la dureza de todas las muestras será la misma con un margen de error menor al 3%, esto es importante para desarrollo de nuevas aleaciones con las características mecánicas deseadas.
The Relationship Between Stigma and Helping-Seeking Behaviors Among Refugee, Asylum Seeker, Immigrant (RASI) Populations Specifically of Muslim Origin
Authors: DiComo Rachel A. , Mychailyszyn Matthew
Published: September 2021

In order to understand the relationship between stigma and help-seeking behaviors in refugee, asylum seeker, and immigrant (RASI) populations in the United States, this review examines stigma and its various forms: public, perceived public, self, and stigma by association. Issues which RASI populations face when immigrating to the U.S. and the effects of integrating into a new culture on stigma are also discussed. An emphasis is placed on investigating these interactions in Muslim-specific populations in further detail due to increases in discrimination toward this group in the United States since 2016. The analysis concludes by examining ways that a counselor can actively change the course of stigma. Recommendations are proffered regarding being a culturally cognizant clinician in treating this population, which is currently seeing an increase in stigmatization in the United States.