bluuebunny/crossref_metadata_2025 huggingface dataset:
Examining the Quest for the Historical Jesus and its Relevance Today
Authors: Addai-Mensah Peter
Published: October 2020

The Akans of Ghana have a proverb that says, tete wo bi ka, tete wo bi kyere nti hwe na sua - which literally means - the past has something to say, it has something to teach, therefore, learn from it. It emphasizes the importance and significance of History. History enables humanity to look at the past with the view to understanding the present in order to make projections into the future. Jesus Christ is one person who has influenced humanity very significantly. However, Jesus Christ lived in a different era. In order to understand him and see his relevance, there is the need to enter the world in which he lived and see whether his life and teachings make sense today. This necessitates the fusion of two horizons. It calls for deconstruction and construction again of the life and ministry of Jesus to make his teaching more meaningful and significant for people of today. This article discusses the search for the Jesus of History; whether this quest is possible and the relevance for this quest for contemporary society. The purpose of writing this article is to retrieve the significance of Jesus Christ in Salvation History and make Him relevant in contemporary society.

Keywords: Deconstruction, Demythologize, Fusion of Horizons, Historical Jesus,
Reconstruction and Quest
DOES FINANCIAL FLEXIBILITY ENHANCE FIRM VALUE? A COMPARATIVE STUDY BETWEEN DEVELOPED AND EMERGING COUNTRIES
Authors: Bilyay-Erdogan Seda
Published: October 2020

This paper investigates the effect of financial flexibility on firm value, on a comparative basis between developed and emerging countries in Europe. Our dataset covers 4,334 companies from 15 developed and 1,436 companies from 6 emerging countries in Europe for the period between 2000 and 2016. First, depending on companies’ maintenance of leverage that is below-predicted levels for a successive number of years, I identify the financially flexible companies in the sample. Second, I examine whether financial flexibility affects firm value. Our results demonstrate that firms’ financial flexibility positively contributes to firm value in all estimations. Furthermore, this study presents unprecedented evidence that the effect of financial flexibility on firm value is more significant for emerging countries when compared to developed countries in Europe. Moreover, I demonstrate for the first time that firm characteristics, including firm size and age, which proxy for asymmetric information within a company, negatively moderate the relationship between flexibility and firm value. Managers, both in developed and in emerging countries, who aim to surge their firm value up, should give importance to the maintenance of financial flexibility in their capital structure decisions. Last, managers of relatively smaller and younger companies should put more emphasis on becoming financially flexible if they want to improve their firms’ value.
ARTIFICIAL INTELLIGENCE IN BUSINESS AND ECONOMICS RESEARCH: TRENDS AND FUTURE
Authors: Ruiz-Real José Luis , Uribe-Toril Juan , Torres José Antonio , De Pablo Jaime
Published: October 2020

Artificial Intelligence is a disruptive technology developed during the 20th century, which has undergone an accelerated evolution, underpinning solutions to complex problems in the business world. Neural Networks, Machine Learning, or Deep Learning are concepts currently associated with terms such as digital marketing, decision making, industry 4.0 and business digital transformation. Interest in this technology will increase as the competitive advantages of the use of Artificial Intelligence by economic entities is realised. The aim of this research is to analyse the state-of-the-art research of Artificial Intelligence in business. To this end, a bibliometric analysis has been implement using the Web of Science and Scopus online databases. By using a fractional counting method, this paper identifies 11 clusters and the most frequent terms used in Artificial Intelligence research. The present study identifies the main trends in research on Artificial Intelligence in business and proposes future lines of inquiry.
Piercing through Highly Obscured and Compton-thick AGNs in the Chandra Deep Fields. II. Are Highly Obscured AGNs the Missing Link in the Merger-triggered AGN–Galaxy Coevolution Models?
Authors: Li Junyao , Xue Yongquan , Sun Mouyuan , Brandt William N. , Yang Guang , Vito Fabio , Tozzi Paolo , Vignali Cristian , Comastri Andrea , Shu Xinwen , Fang Guanwen , Fan Lulu , Luo Bin , Chen Chien-Ting , Zheng Xuechen
Published: October 2020

By using a large, highly obscured (

) active galactic nucleus (AGN) sample (294 sources at z ∼ 0–5) selected from detailed X-ray spectral analyses in the deepest Chandra surveys, we explore distributions of these X-ray sources in various optical/infrared/X-ray color–color diagrams and their host-galaxy properties, aiming at characterizing the nuclear obscuration environment and the triggering mechanism of highly obscured AGNs. We find that the refined Infrared Array Camera (IRAC) color–color diagram fails to identify the majority of X-ray-selected, highly obscured AGNs, even for the most luminous sources with

. Over 80% of our sources will not be selected as heavily obscured candidates using the flux ratio of

and R − K > 4.5 criteria, implying complex origins and conditions for the obscuring materials that are responsible for the heavy X-ray obscuration. The average star formation rate (SFR) of highly obscured AGNs is similar to that of stellar mass- (M
*-) and z-controlled normal galaxies, while a lack of quiescent hosts is observed for the former. Partial correlation analyses imply that highly obscured AGN activity (traced by

) appears to be more fundamentally related to M
*, and no dependence of

 on either M
* or SFR is detected. Morphology analyses reveal that 61% of our sources have a significant disk component, while only ∼27% of them exhibit irregular morphological signatures. These findings together point toward a scenario where secular processes (e.g., galactic-disk instabilities), instead of mergers, are most probable to be the leading mechanism that triggers accretion activities of X-ray-selected, highly obscured AGNs.
A Search for In Situ Field OB Star Formation in the Small Magellanic Cloud
Authors: Vargas-Salazar Irene , Oey M. S. , Barnes Jesse R. , Chen Xinyi , Castro N. , Kratter Kaitlin M. , Faerber Timothy A.
Published: October 2020

Whether any OB stars form in isolation is a question central to theories of massive star formation. To address this, we search for tiny, sparse clusters around 210 field OB stars in the Small Magellanic Cloud (SMC) from the Runaways and Isolated O-Type Star Spectroscopic Survey of the SMC (RIOTS4), using friends-of-friends and nearest neighbors algorithms. We also stack the target fields to evaluate the presence of an aggregate density enhancement. Using several statistical tests, we compare these observations with three random-field data sets, and we also compare the known runaways to nonrunaways. We find that the local environments of nonrunaways show higher aggregate central densities than for runaways, implying the presence of some “tips of icebergs” (TIB) clusters. We find that the frequency of these tiny clusters is low, ∼4%–5% of our sample. This fraction is much lower than some previous estimates, but is consistent with field OB stars being almost entirely runaway and walkaway stars. The lack of TIB clusters implies that such objects either evaporate on short timescales or do not form, implying a higher cluster lower-mass limit and consistent with a relationship between maximum stellar mass (m
max) and the mass of the cluster (M
cl). On the other hand, we also cannot rule out that some OB stars may form in highly isolated conditions. Our results set strong constraints on the formation of massive stars in relative isolation.
The Pan-STARRS1 Database and Data Products
Authors: Flewelling H. A. , Magnier E. A. , Chambers K. C. , Heasley J. N. , Holmberg C. , Huber M. E. , Sweeney W. , Waters C. Z. , Calamida A. , Casertano S. , Chen X. , Farrow D. , Hasinger G. , Henderson R. , Long K. S. , Metcalfe N. , Narayan G. , Nieto-Santisteban M. A. , Norberg P. , Rest A. , Saglia R. P. , Szalay A. , Thakar A. R. , Tonry J. L. , Valenti J. , Werner S. , White R. , Denneau L. , Draper P. W. , Hodapp K. W. , Jedicke R. , Kaiser N. , Kudritzki R. P. , Price P. A. , Wainscoat R. J. , Chastel S. , McLean B. , Postman M. , Shiao B.
Published: October 2020

This paper describes the organization of the database and the catalog data products from the Pan-STARRS1 3π Steradian Survey. The catalog data products are available in the form of an SQL-based relational database from MAST, the Mikulski Archive for Space Telescopes at STScI. The database is described in detail, including the construction of the database, the provenance of the data, the schema, and how the database tables are related. Examples of queries for a range of science goals are included.
Uranus’ Stratospheric HCl Upper Limit from Herschel/SPIRE*
Authors: Teanby N. A. , Irwin P. G. J.
Published: October 2020

Herschel/SPIRE observations of Uranus are used to search for stratospheric hydrogen chloride (HCl) emission at 41.74 cm−1. HCl was not detected and instead 3σ upper limits were determined; <6.2 ppb (<2.0 × 1014 molecules cm−2) for a 0.1 mbar step profile and <0.40 ppb (<1.2 × 1014 molecules cm−2) for a 1 mbar step profile. HCl is expected to have an external source and these upper limits are consistent with abundances of other external species (CO, H2O, CO2) and a solar composition source.
Review of Psenulus species (Hymenoptera, Psenidae) in the Hong Kong SAR, with description of three new species
Authors: Taylor Christopher K. , Barthélémy Christophe , Chi Roy Cheung Shun , Guénard Benoit
Published: October 2020

The wasp genusPsenulusis the most diverse genus of the family Psenidae in the superfamily Apoidea, with its diversity peaking in the Oriental realm. Six species of the genus are here recorded for the first time from the Hong Kong SAR. Three of these,Psenulus ephippiussp. nov.,Psenulus gibbussp. nov. andPsenulus pallenssp. nov. are described as new to science. An identification key, figures for all taxa recorded in Hong Kong and phenology of five of the six species are also provided.
Review of the rare genus Vanhornia Crawford, 1909 (Hymenoptera, Proctotrupoidea, Vanhorniidae) with description of a new species from the Russian Far East
Authors: Timokhov Alexander V. , Belokobylskij Sergey A.
Published: October 2020

A brief review of the proctotrupoid genus Vanhornia Crawford is given. A new species, Vanhornia yuriisp. nov. from Primorskiy Territory, Russia, is described and illustrated. Photographic illustrations of Vanhornia eucnemidarum Crawford, 1909 (specimens from USA), V. leileri Hedqvist, 1976 (specimens from the Russian Far East) and V. quizhouensis (He & Chu, 1990) (holotype) are given. An identification key to all known species of Vanhornia is provided.
Vespa velutina nigrithorax Lepeltier, 1836 from Hamburg (Northern Germany) shares the same COI haplotype with other European populations
Authors: Husemann Martin , Dey Lara-Sophie , Hawlitschek Oliver
Published: October 2020

The yellow-legged, or Asian hornet,Vespa velutina, has invaded large parts of South-Western Europe and now starts spreading further north. Recently, it has been reported from Hamburg, Northern Germany. Yet, the origin of this new invasion is not clear as the founders may have come either from Southern Europe or from Asia. We here use COI sequences to test these alternatives and find that the specimens from Hamburg share the same haplotype with all Southern European samples. This suggests that the species has been transported long distance from other Europe to Northern Germany and shows further its high invasion potential.
Structure of the leaf litter frog community in an area of Atlantic Forest in southeastern Brazil
Authors: Vagmaker Natália , Pereira-Ribeiro Juliane , Colombo Ferreguetti Átilla , Boazi Alex , Gama-Matos Rayanne , Bergallo Helena Godoy , Duarte Rocha Carlos Frederico
Published: October 2020

Different spatial and temporal factors can influence the species richness and abundance of leaf anurans that are fundamental for the ecosystem functioning, as they act as predators and integrate the trophic chain as prey of other animals. There are relatively few studies that aimed to understand the spatio-temporal variation and the influence of environmental factors on leaf litter communities. We studied parameters of the anuran community living in the forest leaf litter in the Duas Bocas Biological Reserve (DBBR), Espírito Santo, Brazil. We sought to understand the extent to which richness, abundance, biomass and density varied between two locations with different stages of preservation (primary and secondary forest). In addition, we tested the effect of temperature and local humidity on abundance. We conducted the samplings monthly from October 2017 to September 2018, establishing 98 4 x 4 m plots (16 m2 each) demarcated on the DBBR forest leaf litter. We measured temperature (°C) and relative air humidity (%), and each plot was carefully surveyed by four observers. We tested for differences in anuran density between the two sampled locations and estimated the effects of environmental variables in the community. We recorded 102 individuals of anurans from 11 species belonging to eight families. The DBBR anuran community parameters significantly differed between the two studied locations, with the highest values of anuran richness and abundance occurring in the area covered by primary forest, probably due to differences in the preservation of each area. However, temperature and humidity did not affect the abundance of anurans in the sampled areas. Our results provide the first information about spatial variation and influence of environmental factors, directed to the community of leaf litter anurans in DBBR, and represents the second study on this group of anurans in the state of Espírito Santo.
Nosotras : un féminisme latino-américain dans le Paris des années 1970
Authors: Abreu Maira
Published: October 2020

Cet article 1 propose d’analyser la trajectoire du Groupe Latino-Américain des Femmes à Paris. Ce groupe, né en 1972, publie un bulletin bilingue (portugais et espagnol) Nosotras entre 1974 et 1976. C’est sur la base des textes qui y sont publiés et à partir des entretiens que j’ai cherché à comprendre comment ces femmes avaient théorisé leur propre oppression, comment elles avaient développé l’idée d’un « nous, les femmes » et d’une « spécificité latino-américaine ». À partir des problèmes posés par leur vécu en tant que femmes latino-américaines en Europe et de la prise en compte de leur impossibilité à séparer leurs multiples « appartenances », elles ont cherché à thématiser les diverses formes de domination subies tout comme à élaborer des stratégies de lutte et d’alliances leur permettant de faire face à cette réalité.
Zeitwahrnehmung und Benjamin-Reminiszenzen in Lutz Seilers Erzählung Gavroche
Authors: Hähnel-Mesnard Carola
Published: October 2020

L’article met d’abord en regard la critique benjaminienne de l’histoire avec le monde narré dans le récit Gavroche et y voit une critique implicite de la conception du temps dominante en RDA. Le moment privilégié symbolisé par le concept de l’à-présent ( Jetztzeit ) correspondrait à une possible expérience individuelle du temps. Ce concept se retrouve dans la construction métaleptique du texte reflétant sur un plan métalittéraire l’idée de l’interruption d’un ordre temporel homogène. Enfin, est également évoquée le lien entre l’écriture de Seiler et le concept de remémoration qui vise à sauvegarder des éléments du passé.
La construction du citoyen par l’enseignement polynomiste, un projet sociétal
Authors: Di Meglio Alain , Sorba Nicolas
Published: October 2020

L’article propose une évaluation de l’apport des enseignements du corse, qui ont l’originalité de répondre aux principes du concept de langues polynomiques, dans le cadre d’une praxis politique qui construirait une société plus tolérante face aux différences. Après l’analyse de la situation de la langue corse dans son contexte sociolinguistique, deux enquêtes complémentaires permettent de saisir comment le concept de langues polynomiques a été adapté dans l’enseignement du corse et d’apprécier ce que peut apporter cet enseignement en matière de citoyenneté dans la construction d’un projet démocratique.
L’ énovation , un concept au service du projet identitaire européen : une illustration par la certification
Authors: Mac Gaw Stéphanie
Published: October 2020

On dit de la diversité qu’elle est une richesse, mais comment prétendre à sa préservation dans le contexte actuel de globalisation ? À l’heure de la standardisation des compétences individuelles critériées par le biais de documents politiques tels que le CECR (2001), dont certains diront qu’il participe à une marchandisation, voire à une MacDonaldisation de l’enseignement supérieur, cet article présente le rôle majeur que peut jouer une certification en langues dès lors qu’elle s’inscrit dans une dynamique « énovante » ; un concept que nous empruntons à Gélinas et Fortin (1996), et qui repose sur l’idée que les unités d’un système sont à l’origine de nouveautés émergentes dans le cadre de contextes spécifiques. Le présent article questionne dans un premier temps la possible adéquation entre les attentes du niveau macro, exprimées par le biais de politiques européennes d’éducation normalisatrices, et la réalité des niveaux méso (les établissements d’enseignement supérieur) et micro, constitué d’individus aux langues, cultures et compétences diverses. La question de la possible construction d’un projet identitaire européen au travers des langues sera enfin posée, en érigeant l’énovation comme un concept à même de mettre en écho des dynamiques potentiellement contraires. L’outil certificatif sera alors remis dans la perspective d’une utilisation sur le terrain de l’auteur.
Didactiser des corpus de documents authentiques pour enseigner à interagir en langue étrangère
Authors: Oursel Élodie
Published: October 2020

Interagir en langue étrangère est une tâche ardue : prendre la parole, parler, laisser la parole, écouter, comprendre, évaluer son interprétation, préparer sa réaction, prendre des risques sans perdre la face, reprendre la parole et la garder, etc. Cela nécessite le développement de compétences langagières, mais aussi cognitives, sociales et culturelles. Les recherches récentes en analyse des interactions et en didactique des langues ont clarifié la nature de ces compétences, et permettent aujourd’hui de concevoir comment utiliser les corpus d’interactions authentiques en classe. Dans cet article, nous posons des objectifs pédagogiques concrets pour « savoir interagir », présentons quatre plateformes qui offrent du matériel pédagogique adapté, et proposons des modalités qui permettent de travailler ces compétences avec ce matériel.
Evaluer les effets de la réflexologie : réflexion à propos d’une étude clinique sur le stress du quotidien
Authors: Payrau Bernard , Breton Elisabeth , Thilly Nathalie
Published: October 2020

La validation des Interventions Non Médicamenteuses (INM) repose sur un processus d’évaluation en plein développement. Dans le domaine des INM, la double contrainte des règles méthodologiques scientifiques et de celles des thérapeutiques centrées sur la personne rend la démonstration complexe. L’essai contrôlé randomisé considéré comme le nec plus ultra en termes de niveau de preuve est souvent délicat à instaurer et n’est pas exempt de biais. Lors des 1 es journées du GETCOP centrées sur la réflexothérapie, nous avons présenté une étude d’évaluation de pratiques de plusieurs INM (réflexologie, fasciathérapie, hypnose, musicothérapie) menées en parallèle. Cette étude pragmatique, ouverte, non randomisée, multicentrique porte sur le stress du quotidien chez des sujets a priori sains. Son objectif était d’évaluer l’effet d’une séance, comparativement à une procédure témoin de repos, puis de les comparer entre elles. L’anxiété du moment pour critère de jugement, a été mesurée à l’aide du STAI-Y avant et après une séance pour chaque technique. L’échantillon totalise 308 personnes. La comparaison avec le groupe témoin de repos a montré une différence significative de moyenne d’état anxieux pour la réflexologie, la fasciathérapie et l’hypnose. La comparaison des 4 groupes intervention entre eux montre que l’abaissement du niveau d’anxiété obtenu par la réflexologie, la fasciathérapie et l’hypnose ne diffère pas significativement entre eux et est supérieur à celui de la musicothérapie. Une discussion approfondie des résultats et de la méthodologie de cette étude est ensuite menée, souhaitant ainsi porter contribution aux études à venir.
La construction à participe dominant vs. le nom verbal chez Cicéron
Authors: Spevak Olga
Published: October 2020

L’objectif de cet article, fondé sur un corpus cicéronien, est d’examiner la construction à participe dominant (souvent appelée ab urbe condita « depuis la fondation de la ville ») qui occupe une position argumentale (sujet, objet et complément adnominal). On abordera des problèmes d’identification et on montrera que la construction à participe dominant est employée après un certain type de verbes. La construction à participe dominant est concurrencée par le nom verbal, et on comparera leur distribution pour voir si la construction à participe dominant compense l’absence du nom verbal en synchronie ou si des traits aspectuels jouent un rôle pour le choix entre ces deux moyens linguistiques. Cependant, la construction à participe dominant semble avoir une place bien déterminée dans le système du latin : à la différence du nom verbal, elle met en œuvre un participe, généralement un participe passé passif, qui permet de situer le procès en question dans le temps. En d’autres termes, le participe sert à exprimer une temporalité relative, catégorie dont le nom verbal est dépourvu.
Repenser les Suds : la réévaluation des géographies subalternes dans les littératures postcoloniales
Authors: Clavaron Yves
Published: October 2020

Discipline vouée à la spatialité, la géographie se prête au questionnement postcolonial dans la mesure où elle contribue à la construction du monde par des taxinomies, des discours et des représentations. Les études postcoloniales élaborent une critique du discours colonial en tant que mise en ordre d’un monde eurocentré, marqué par une séparation hiérarchique entre Nord et Sud, entérinée par la cartographie et l’« empire de la géographie ». L’article vise à observer les processus par lesquels la fiction littéraire postcoloniale réévalue les géographies subalternes en construisant un espace anti-hégémonique et alternatif qui place le(s) Sud(s) au au centre de la représentation, même si l’Europe reste présente en arrière-fond.
Rousseau et le piétisme germanique
Authors: Buffet Thomas
Published: October 2020

Désireux de montrer la rencontre de Rousseau avec le piétisme germanique, l’auteur de cet article constate que le philosophe partage avec cette mouvance protestante le refus des dogmes de l’enfer et du péché originel et préfère se fier à sa raison et à sa conscience. Évoquant l’influence de Mme de Warens et de Béat de Muralt, l’auteur entend établir dans la recherche la proximité du philosophe avec Marie Huber pour sa conciliation originale de la conscience et de la raison au sein du mouvement piétiste, avant de présenter les conséquences de cette ouverture au piétisme : l’écriture autobiographique et épistolaire, l’exhortation au retour à la nature et l’interprétation rationnelle des Écritures.
Nu(dité)s littéraires. Lecture croisée de Walter Siti et de Michel Houellebecq
Authors: Pellizzari Diego
Published: October 2020

Cet article examine deux exemples de nu littéraire que sont les romans Scuola di nudo de Walter Siti (1994) et Les Particules élémentaires de Michel Houellebecq (1998). Pour ce faire, l’auteur se propose d’appliquer à l’analyse littéraire des outils conceptuels qui sont nés dans d’autres champs disciplinaires : la distinction entre nu et nudité élaborée par K. Clark, et reprise par F. Jullien, pour l’histoire de l’art, et la catégorisation socio-anthropologique de Christophe Colera, qui distingue entre nudité fonctionnelle, nudité-affirmation, nudité-humiliation, et nudité-don.
Yggdrasill (1936-1940) : une revue entre cosmopolitisme, impérialisme et universalisme poétiques
Authors: Bridet Guillaume
Published: October 2020

Les quarante-six livraisons de la revue Yggdrasill , qui paraissent entre avril 1936 et avril 1940 sous la direction entre autres de Raymond Schwab, témoignent d’une extraordinaire ouverture culturelle avec la présence de la poésie française, mais aussi de toute une série de poèmes venus d’ailleurs, et parfois de fort loin. La revue permet de saisir certaines des difficultés auxquelles confronte le changement d’échelle du national au mondial prôné aujourd’hui par certains chercheurs. En envisageant tour à tour trois figures de la mondialité (le cosmopolitisme, l’impérialisme et l’universalisme), on envisagera certaines de ces difficultés.
Raymond Schwab et la pensée occidentale de l’engagement : vers un renouveau transculturel de l’histoire littéraire
Authors: Chaudet Chloé
Published: October 2020

Cet article interroge la mise en sourdine de la politique qui caractérise La Renaissance orientale ainsi que des écrits plus littéraires de Raymond Schwab, et propose de l’interpréter comme la formulation d’un autre type d’engagement que celui qui domine la sphère européenne et nord-américaine au milieu du XX e siècle. Reconfigurant le concept dix-neuviémiste d’intellectuel en lui conférant une portée cosmopolite novatrice, l’engagement qui caractérise l’œuvre de Schwab peut ainsi être conçu comme prémisse et prémice de certaines des approches transculturelles de l’histoire littéraire qui se multiplient depuis la deuxième partie du XX e siècle.
Pour une histoire littéraire transnationale : la littérature algérienne entre « Intégral » et « Intégrisme »
Authors: Leperlier Tristan
Published: October 2020

Partant d’une réflexion critique sur La Renaissance orientale de Raymond Schwab, qui en appelle à un « humanisme intégral », cet article propose une méthode d’histoire littéraire transnationale réintroduisant le politique, et illustrée à partir du cas algérien. En particulier, à l’encontre d’une téléologie de l’intégration, ou encore d’un métissage universel, cette méthode permet de mettre en lumière les tensions permanentes et dialectiques au sein d’une littérature postcoloniale entre intégration à l’international, et construction parfois « intégriste » d’une spécificité nationale.
Japon : « l’interlocuteur invisible ». L’absence du Japon dans La Renaissance orientale de Raymond Schwab
Authors: Ferrier Michaël
Published: October 2020

Le Japon est pratiquement absent de La Renaissance orientale  : l’archipel nippon n’y est jamais évoqué, représentant paradoxalement la silhouette fantomatique de cet « interlocuteur invisible » dont parle Schwab à propos de « l’Asie » dans la pensée de l’Europe, au moment même où il s’applique à la dissiper. Que nous apprend cette absence des circonstances historiques, de l’horizon épistémologique et des présupposés méthodologiques de La Renaissance orientale  ? Plus profondément encore, que nous dit-elle de la construction, du développement et des limites de « l’humanisme intégral » ?
Isolation of bacterial microbiota associated to honey bees and evaluation of potential biocontrol agents of Varroa destructor
Authors: Saccà M.L. , Lodesani M.
Published: October 2020

The honey bee parasitic mite Varroa destructor is one of the main causes of depopulation of bee colonies. Bacterial symbionts associated to honey bees are known to produce a variety of bioactive molecules that have been suggested to play a protective role against honey bee pathogens. We hypothesised that among these bacteria, those colonising the external body of honey bees, and therefore able to survive and reproduce in the hive environment outside the insect gut, may be good candidate biocontrol agents to be tested against V. destructor. The aim of this study was to isolate bacterial species from healthy honey bees and dead varroa mites and to evaluate the potential miticidal effect of their spent medium containing both bacterial metabolites and viable cells, with the final objective of finding a long-lasting solution for mite control. 61 bacterial strains belonging to the Firmicutes, Proteobacteria and Actinobacteria phyla were isolated from the surface of foragers, nurse bees and larvae collected in 10 different apiaries. The most common species was Lactobacillus kunkeei (62%). Growth capability of a selection of isolates was observed at 30 and 34 °C with 1% and 20% glucose and fructose. Laboratory bioassays were conducted by spraying mites with six-day-grown bacterial cultures containing 107 cfu/ml of four strains of L. kunkeei, Bacillus thuringiensis, Bifidobacterium asteroides and an Acetobacteraceae bacterium. The effect of each strain on varroa survival was tested independently. The first three caused 95-100% mortality of mites in 3 days, indicating a potential role as natural antagonists towards varroa. The mediation of pH of the bacterial cultures did not appear to be determinant in mite inhibition, suggesting the involvement of other modes of action against varroa. The exploitation of honey bee microbiota for controlling one of the major threats for honey bee health may be a promising approach deserving further investigation.
Lifespan of solutions to a damped plate equation with logarithmic nonlinearity
Authors: Han Yuzhu , Li Qi
Published: October 2020

This paper is devoted to the lifespan of solutions to a damped plate equation with logarithmic nonlinearity

   \begin{document}$ u_{tt}+\Delta^2u-\Delta u-\Delta u_t+u_t = |u|^{p-2}u\ln|u|. $\end{document}

Finite time blow-up criteria for solutions at both lower and high initial energy levels are established and an upper bound for the blow-up time is given for each case. Moreover, by constructing a new auxiliary functional and making full use of the strong damping term, a lower bound for the blow-up time is also derived.
EFFICIENT QUATERNION MOMENTS FOR REPRESENTATION AND RETRIEVAL OF BIOMEDICAL COLOR IMAGES
Authors: Hassan Gaber , Hosny Khalid M. , Farouk R. M. , Alzohairy Ahmed M.
Published: October 2020

Biomedical color (BMC) images are being used on a wide scale by physicians, where their diagnosis would be more accurate. Hence, it is recommended to develop new approaches that are able to represent and retrieve the BMC images efficiently. This work proposes two methods to represent BMC images: Quaternion Associated Laguerre. Moments (Q_ALMs), and Quaternion Chebyshev Moments (Q_CMs). Q_ALMs and Q_CMs are derived by extending the ALMs and CMs to the quaternion field. ALMs and CMs represent discrete orthogonal moments, and they are defined using the Associated Laguerre Polynomials (ALPs) and Chebychev Polynomials, respectively. Hospitals and medical institutes everywhere in the world create and store a large variety of datasets of BMC images during the routine clinical practices; hence, the mastery to retrieve the BMC images correctly is crucial for precise diagnoses and also for the researchers in medical sciences. So that in this study, we also introduced two image retrieval systems for BMC images based on the Q_CMs and Q_ALMs approaches. Our approaches extensively assessed with two standard benchmark datasets: LGG Segmentation dataset for brain magnetic resonance MR images and NEMA-CT for the computed tomography (CT) images. The performance of the proposed retrieval systems is assessed through three performance metrics: Average retrieval precision (ARP), average retrieval rate (ARR), and F_score. Results have shown the outperformance of Q_CMs over Q_ALMs in both the cases of representing and retrieval of BMC images.
Treating Stuttering in Children With Autism Spectrum Disorder
Authors: Miyamoto Shoko , Tsuge Masayoshi
Published: October 2020

The number of case reports of children with autism spectrum disorder (ASD) who stutter is increasing. The duration of intervention for stuttering in children with attention-deficit hyperactivity disorder (ADHD) is often greater than for children who only stutter. Whether there is a similar pattern in children with ASD who stutter should also be examined. In this study, the factors influencing the prognoses of two children with stuttering and ASD were investigated. One child's stuttering had improved and had almost been eliminated, and the other's stuttering continued. The results of the investigation showed that a significant increase in language ability and the absence of physiological problems assisted in eliminating stuttering. The child who continued to stutter originally showed a higher than average language level and high anxiety. Preventing and eliminating anxiety that accompanies ASD, in addition to intervention for stuttering, may be indispensable to reduce stuttering and improve fluency.
Let's Play!
Authors: Jackson Corrie L. , Jackson G. Tanner
Published: October 2020

The purpose of this chapter is to summarize the potential and current use of digital educational games as an intervention tool for autism spectrum disorder (ASD). It provides an overview of educational games, as well as the potential benefits of using educational games as an intervention tool. Second, this chapter reviews a selection of digital educational games designed for addressing targeted skill areas applicable to ASD, including social interaction and communication skills, facial and emotion recognition skills, and adaptive behavior. Supporting research related to educational games is reviewed. This chapter concludes with recommendations for the future of designing and evaluating educational games as an intervention tool for ASD.
Commodity Trading in the Blockchain Technology Era
Authors: Arsi Sonia
Published: October 2020

The emergence of Blockchain technology is gradually disrupting the traditional way of trading commodities. To go beyond the theory to the practical cases, this chapter provides an overview of the Blockchain-based digital transformation process behind and the pre-requisites for its inclusion in the commodity industry. A reality check through vivid examples of global companies highlights the increasing attention drawn to the Blockchain. Furthermore, this chapter discusses the impact of Blockchain technology's use in improving commodity finance trades at different levels and optimizing the transactions' effectiveness. Finally, future challenges and useful perspectives for managers and commodity firms are spotlighted.
Effect of Eggshell Waste Powder on Impact Resistance and Bond Charcteristics of Reinforced Concrete
Authors: Hamdullah Dhifaf Natiq , Hama Sheelan Mahmoud , Yaseen Mohammed Maher
Published: October 2020

This research studied the effect of eggshell powder as a partial replacement of cement on fresh and hardened properties of concrete. The cement was partially replaced with eggshell powder at these percentage 0%, 2.5 %, 5 %, 7.5% and 10%, (by weight of cement). The resulting concrete was compared for impact resistance, energy absorption, load-slip characteristics and ultimate bond strength. setting time (initial and final), slump, density and compressive strength also have been found. The obtaining results indicated the advantage of incorporation of eggshell powder in concrete. The concrete unit weight has not obviously affected by eggshell powder content. The 2.5% eggshell powder give the best results compared to reference mix.
Standard Sand Specifications Development by Mechanical Attrition Scrubbing to Make it Convenient for the Cement Industry
Authors: Abdullah Waleed R.
Published: October 2020

This study was carried out to determine the possibility of improving the properties of the sand from Kasser Mohaiwir area in Al-Anbar Governorate to obtain sand specifications conforming to the standard sand specification (not exceeding 0.25% loss in acid). This study showed the possibility of obtaining standard sand with loss in hydrochloric acid up to 0.175 and recovery rate not exceeding 80% using mechanical methods without resorting to the use of acid methods currently in production.
Educación en tiempos de pandemia: reflexiones de alumnos y profesores sobre la enseñanza virtual universitaria en España, Italia y Ecuador
Authors: Tejedor Santiago , Cervi Laura , Tusa Fernanda , Parola Alberto
Published: October 2020

Introducción. Esta investigación realizó un estudio comparativo entre tres países muy impactados por el coronavirus a partir del análisis de las reflexiones de docentes y estudiantes sobre la enseñanza virtual universitaria durante la etapa de confinamiento. Metodología. El estudio, de carácter descriptivo, exploratorio y explicativo, aplicó encuestas, entre marzo y abril de 2020, a estudiantes y docentes de Periodismo, Comunicación y Educación de la Universidad Autónoma de Barcelona (España), Universidad de Torino (Italia) y Universidad Técnica de Machala (Ecuador). La encuesta tuvo respuestas de 300 estudiantes (100 por país) y 196 docentes. Resultados. Los estudiantes, de forma mayoritaria, valoran negativamente el paso a la virtualidad, pues este se asocia, de forma recurrente, con un incremente de la carga lectiva. La teleformación ha contribuido a impactar negativamente en la visión del alumnado sobre sus formadores, mientras que en estos últimos demandan competencias digitales básicas en los jóvenes universitarios. Discusión. Según los hallazgos obtenidos, los docentes, en el escenario de la teleformación, deben mostrar conocimientos no solo sobre el contenido de la materia, sino también conocimiento tecnológico y pedagógico-digital. Conclusiones. El docente tiene que ser capaz de innovar, reflexionar y transformar sus propuestas didácticas para responder a las demandas sociales que vive el mundo en medio de una crisis sanitaria, a la vez que se alcancen los objetivos curriculares propuestos al inicio del curso. Por otro lado, los docentes encuestados reconocen que es necesario la promoción del pensamiento crítico y reflexivo vinculado a la gestión estratégica de las TIC.
El enfoque de la prensa española durante la crisis del Covid-19. Un análisis del framing a través de las portadas de los principales diarios de tirada nacional
Authors: Núñez-Gómez Patricia , Abuín-Vences Natalia , Sierra-Sánchez Javier , Mañas-Viniegra Luis
Published: October 2020

Introducción: En este trabajo se lleva a cabo un análisis de las portadas de los principales diarios españoles durante la crisis del Covid-19. Metodología: El objetivo principal de este estudio es analizar el enfoque o framing empleado por las diferentes cabeceras para trasladar la información sobre la pandemia y su impacto a la sociedad. La metodología empleada fue el análisis de contenido de las portadas de la prensa española. El diseño de la muestra se ha basado en tres criterios: temporal, profesional y discursivo. Resultados/Discusión: El tono empleado por las principales cabeceras en sus titulares de portada fue negativo. Esta negatividad se centra en la gestión que de esta crisis está realizando el Gobierno. Los principales temas han sido sanidad, política y economía. En cuanto al tratamiento visual, las cabeceras han resaltado en sus fotografías a la sociedad civil como actor informativo por delante de políticos o instituciones oficiales. Conclusiones: El actor institucional más presente en el análisis discursivo de los titulares ha sido el Gobierno, representado en la figura de su Presidente.
Percepciones y expectativas en el alumnado universitario a partir de la adaptación a la enseñanza no presencial motivada por la pandemia de COVID-19
Authors: Gil Villa Fernando , Urchaga Litago José David , Sánchez Fernández Adrián
Published: October 2020

Introducción: El confinamiento ha propiciado el debate sobre la digitalización y la enseñanza virtual. El objetivo es exponer las desventajas del sistema telemático adoptado durante la cuarentena en los apartados de igualdad de oportunidades, bienestar y satisfacción y calidad docente; centrado en el nivel de enseñanza universitario y considerando de forma especial los aspectos de la comunicación de la universidad con el alumnado. Metodología: Se han realizado dos cuestionarios sociológicos, ambos distribuidos por medios telemáticos, a estudiantes universitarios: una al inicio del confinamiento (n: 1612) y otra en el periodo de exámenes (n: 872). Resultados: Un 90% de estudiantes prefiere la enseñanza presencial y un 80% considera que su universidad no se ha adaptado adecuadamente. La mayoría considera que aprenderá menos, que su expediente quedará afectado y que tendrán más dificultades para encontrar trabajo. Más de la mitad de los estudiantes ha sufrido experiencias vitales cercanas relativas al coronavirus y sienten desinformación e incomprensión por parte de las universidades. Discusión: La educación virtual dificulta la igualdad de oportunidades, por tanto, el logro de una sociedad inclusiva expuesta en los Objetivos de Desarrollo Sostenible. Conclusiones: Se ha detectado una mala comunicación institucional universitaria, tanto en la comunicación hacia al alumnado, como en la escucha al mismo.
La Noticias falsas y desinformación sobre el Covid-19: análisis comparativo de seis países iberoamericanos
Authors: Gutiérrez-Coba Liliana , Coba-Gutiérrez Patricia , Gómez-Diaz Javier Andrés
Published: October 2020

Introducción: Los productores de desinformación y noticias falsas encuentran en el temor, la incertidumbre en tiempos de pandemia y las redes sociales virtuales facilitadores para su difusión, haciendo más difícil su detección para expertos y legos en el tema. Las tipologías diseñadas para la identificación y clasificación de bulos permiten su análisis desde perspectivas teóricas como las cámaras de eco, las burbujas de filtro, la manipulación de la información y la disonancia cognitiva. Método: Se realizó un análisis de contenido a 371 noticias falsas, previamente verificadas por fact-checkers. Luego de una prueba de intercodificadores, se procedió a clasificar los bulos según su tipo, intencionalidad, tema principal abordado, las redes en que circularon, la técnica de engaño, el país de origen, su carácter transnacional, entre otras variables. Resultados: La intención de bulo más común fue de carácter ideológico, asociada con temas como los falsos anuncios de gobiernos, organizaciones o personajes públicos, así como con la técnica de contexto falso para su elaboración. Una cuarta parte de los bulos analizados se repitieron en varios países, promoviendo principalmente falsas curas con contenidos fabricados como técnica de engaño. Discusión y Conclusiones: Desinformar es un fenómeno de manipulación y filtraje basado en la coincidencia ideológica y emocional que comparten quienes circulan bulos. La (des)información que converge con los intereses de sus usuarios, hace que su difusión se haga de manera indiscriminada y facilite su transnacionalidad, con leves modificaciones, sin que esto afecte su aceptación y su recirculación
The electrical and mechanical properties of Cadmium chloride reinforced PVA:PVP blend films
Authors: Mahmood Rana S. , Salman Sabah A. , Bakr Nabeel Ali
Published: October 2020

In this study, pure polymer blend (PVA:PVP) film and salt (CdCl2·H2O) reinforced polymer blend films were prepared at different weight ratios (10 wt%, 20 wt%, 40 wt%) using the casting method. The effect of the salt weight ratio on the dielectric properties of the polymer blend films reinforced by CdCl2·H2O salt were investigated, and the experimental results showed that the dielectric constant and the dielectric loss factor decreased as the frequency increased for all polymer blend films. Moreover, the above-mentioned properties increased with increasing salt weight ratios at the same frequency. The experimental results also showed an increase in AC electrical conductivity with increasing frequency, for all polymer blend films, and the AC electrical conductivity also increased with an increase in the weight ratio of the salt at the same frequency. The effect of the salt weight ratio on the mechanical properties of the salt-reinforced PVA:PVP polymer blend films was also studied. The experimental results obtained from the tensile test of the salt-reinforced polymer blend films show significant change in the values of tensile strength, elongation at break, and Young’s modulus with increasing salt weight ratios; the hardness value first increases then decreases with increasing salt weight ratios, and the fracture energy value increases with increasing salt weight ratios, thus they could be good candidates for hard adhesives with low flexibility.
EFFECT OF MOBILE PHONE RADIATION ON ADRENAL GLAND OF MALE ALBINO RATS
Authors: Gupta Shalini , Jain Shilpi , Khare Satyam , Gautam Prateek
Published: October 2020

Introduction: The tremendous growth in telecommunication world has increased the number of mobile phone users to many folds. The benefits of cell phones are just half the picture. The other half may be a darker one. The main aim of this study is to observe the effect of electromagnetic radiation being emitted by mobile phones on adrenal gland microanatomy and the hormones released by the gland on male albino rats.
Materials and methods: Forty-two male albino rats of Spargue-Dawley species were divided into two equal groups. The experimental group rats were exposed to mobile phone radiation operating at 900 MHz while the control group rats were not. At the end of every two months, seven rats were sacrificed to analyse histological and hormonal changes.
Results: No changes were seen at the cellular level of the adrenal glands even after six months of radiation exposure. Hormonal assay showed a variation in the cortisol levels of the rats but the changes were within normal range.
Conclusions: Lack of appreciable changes in the cellular morphology and hormonal levels even after six months of radiation exposure signify that the adrenal glands are not affected by exposure to mobile phones.
SIGNIFICANCE OF SACRAL INDEX IN ESTIMATION OF SEX IN NORTH INDIAN POPULATION
Authors: Bisht Kanchan , Verma Rakesh K. , Rani Archana , Kumar Navneet , Bhandari Baibhav
Published: October 2020

Introduction: For the assessment of sexual dimorphism of human skeleton, pelvis has been used with great accuracy by anthropologists and forensic experts. Sacrum, being an integral part of pelvis, has therefore gained importance. Among the various parameters of sacrum, sacral index is the most reliable one, calculated by the formula: Sacral index=max breadth x100/max length of sacrum. This study aimed
to determine the significance of sacral index in estimation of sex in north Indian population.
Materials and methods: For the present study, 35 dry human sacrum bones were obtained from the Department of Anatomy, KGMU, Lucknow, out of which 32, free of deformity, were used in study. The bones were first separated as male and female on the basis of their gross features. Maximum length and breadth of sacra were measured using digital sliding Vernier calliper and sacral index was calculated.
Results: Mean sacral index was significantly higher in females (109.52) as compared to males (92.37). Sex determination done on the basis of gross features were comparable to that done by calculation of sacral index, except in sacrum no. 5,13,14,15 &16. Sacrum no. 5,13,14 &15 were more curved forwards (female feature) while their sacral indices were much lesser (male feature). Sacrum no. 16 had a uniform curvature (male feature) while its sacral index was>105 (female feature). Sacrum no. 16 also
had only 3 dorsal and ventral foramina, which was a variation.
Conclusions: Sacral index is a reliable criterion for sex determination, useful for anatomical, medicolegal and anthropological purposes.