bluuebunny/crossref_metadata_2025 huggingface dataset:
THE IMPACT OF YOUTH ACTIVITIES ON IMPROVING THE EFFICIENCY OF ENTERPRISE MANAGEMENT IN THE CONTEXT OF DIGITALIZATION
Authors:   North Caucasus Federal University, BORIS O. A. , NIKULINA A.V. ,   North Caucasus Federal University
Published: December 2022

The influence of young people on the management of enterprises is becoming more and more noticeable and significant in the conditions of digitalization of all activities of society. Thanks to the freshness of views, the lack of adherence to strict directives, finding non-standard ways to solve problems, young specialists give a powerful impetus to the development of enterprise management. The article reveals the problems of involving young people in innovative management processes, including the professional and technical inability of companies to take advantage of new digital trends. An assessment of the possibilities of their solution is given.
El papel de la teoría en la investigación cualitativa
Authors:   Universidad de Barcelona, Sandín Esteban María Paz
Published: December 2022

En las últimas décadas la investigación cualitativa en las Ciencias Sociales ha alcanzado una madurez y reconocimiento considerables por sus estudios. Con todos los avances y aportes en diversas disciplinas, el papel y la posición de la teoría siempre ha sido un desafío para los/as investigadores/as aunque constituye un aspecto sustancial en el enfoque cualitativo. Que la investigación cualitativa aborde fundamentalmente el mundo de la experiencia vivida, nos sitúa ante algunas tensiones entre una epistemología fundamentalmente interpretativa y las expectativas de contribución teórica de sus estudios. En relación con ello, en el espacio de este encuentro se realiza una presentación general de la investigación cualitativa y el análisis del dato cualitativo, para abordar posteriormente cuestiones sobre la visibilidad y el papel de la teoría en el análisis de los datos cualitativos. La investigación cualitativa se caracteriza generalmente por su enfoque inductivo analítico, aunque como se verá, existen diversos juegos entre lo inductivo y lo deductivo y el papel de la teoría en los estudios cualitativos. De manera concreta, se discuten las relaciones entre la teoría y los datos ejemplificando cuatro estrategias analíticas en el marco de dos estudios de casos longitudinales sobre éxito escolar desarrollados desde una perspectiva theory driven y diseño mixto secuencial (QUAN qual).
Evidence of a Nonorthogonal X-line in Guide-field Magnetic Reconnection
Authors: Pathak Neha , Ergun R. E. , Qi Y. , Schwartz S. J. , Vo T. , Usanova M. E. , Hesse M. , Phan T. D. , Drake J. F. , Eriksson S. , Ahmadi N. , Chasapis A. , Wilder F. D. , Stawarz J. E. , Burch J. L. , Genestreti K. J. , Torbert R. B. , Nakamura R.
Published: December 2022

We present observations that suggest the X-line of guide-field magnetic reconnection is not necessarily orthogonal to the plane in which magnetic reconnection is occurring. The plane of magnetic reconnection is often referred to as the L–N plane, where L is the direction of the reversing and reconnecting magnetic field and N is normal to the current sheet. The X-line is often assumed to be orthogonal to the L–N plane (defined as the M-direction) in the majority of theoretical studies and numerical simulations. The four-satellite Magnetospheric Multiscale (MMS) mission, however, observes a guide-field magnetic reconnection event in Earth’s magnetotail in which the X-line may be oblique to the L–N plane. This finding is somewhat opportune as two of the MMS satellites at the same N location report nearly identical observations with no significant time delays in the electron diffusion region (EDR) even though they have substantial separation in L. A minimum directional derivative analysis suggests that the X-line is between 40° and 60° from M, adding support that the X-line is oblique. Furthermore, the measured ion velocity is inconsistent with the apparent motion of the MMS spacecraft in the L-direction through the EDR, which can be resolved if one assumes a shear in the L–N plane and motion in the M-direction. A nonorthogonal X-line, if somewhat common, would call for revisiting theory and simulations of guide-field magnetic reconnection, reexamination of how the reconnection electric field is supported in the EDR, and reconsidering the large-scale geometry of the X-line.
White Dwarf—Red Giant Star Binaries as Type Ia Supernova Progenitors: With and without Magnetic Confinement
Authors: Ablimit Iminhaji , Podsiadlowski Philipp , Di Stefano Rosanne , Rappaport Saul A. , Wicker James
Published: December 2022

Various white-dwarf (WD) binary scenarios have been proposed trying to understand the nature and the diversity of type Ia supernovae (SNe Ia). In this work, we study the evolution of carbon–oxygen WD—red giant (RG) binaries (including the role of magnetic confinement) as possible SN Ia progenitors (the so-called symbiotic progenitor channel). Using the mesa stellar evolution code, we calculate the time dependence of the structure of the RG star, the wind mass loss, the Roche lobe-overflow mass-transfer rate, the polar mass-accretion rate (in the case of magnetic confinement), and the orbital and angular-momentum evolution. We consider cases where the WD is nonmagnetic and cases where the magnetic field is strong enough to force accretion onto the two small polar caps of the WD. Confined accretion onto a small area allows for more efficient hydrogen burning, potentially suppressing nova outbursts. This makes it easier for the WD to grow in mass toward the Chandrasekhar-mass limit and explode as a SN Ia. With magnetic confinement, the initial parameter space of the symbiotic channel for SNe Ia is shifted toward shorter orbital periods and lower donor masses compared to the case without magnetic confinement. Searches for low-mass He WDs or relatively low-mass giants with partially stripped envelopes that survived the supernova explosion and are found in SN remnants will provide crucial insights for our understanding of the contribution of this symbiotic channel.
Records of the critically endangered Squatina aculeata and Squatina oculata (Elasmobranchii: Squatiniformes: Squatinidae) from the Mediterranean Sea
Authors: Zava Bruno , Insacco Gianni , Deidun Alan , Said Alicia , Ben Souissi Jamila , Nour Ola Mohamed , Kondylatos Gerasimos , Scannella Danilo , Corsini-Foka Maria
Published: December 2022

All three species of angelsharks that inhabit the Mediterranean Sea, Squatina aculeata Cuvier, 1829; Squatina oculata Bonaparte, 1840; and Squatina squatina (Linnaeus, 1758), are classified as Critically Endangered on the IUCN Red List of Threatened Species, since their populations have suffered severe decline and range reduction, mainly due to fishing pressure. The presently reported study aims to further update records of S. aculeata and S. oculata in the basin in order to achieve a clearer picture of their current status and geographical distribution. In this way, we were able to add a contribution to our knowledge about their biological characteristics. Records on the incidental capture and observation of specimens of S. aculeata and S. oculata between 2005 and 2022 were collected through the input of alerted professional fishermen, fisher amateurs, and specialist observers on fishery landings or on board in the context of specific surveying programs as well as of citizens’ science initiatives. Biological characters such as total length, total weight, sex, and maturity were determined whenever possible. A total of 18 S. aculeata and 34 S. oculata specimens were recorded. Data corroborate the current occurrence, which is almost rare, of these two Critically Endangered elasmobranchs from the central to the east part of the basin, revealing furthermore the presence of S. aculeata in Sardinian waters, in the western part of the basin. Data document the important habitats for both species existing in the Strait of Sicily, especially in the area around Malta, and confirm the occurrence of S. aculeata in the southern Aegean Sea. The current presence of both species is also established in Mediterranean Egyptian waters. Our study suggests the urgent need for a wider application and/or reinforcement of existing protection measures for these angelshark species and their habitat, including populations of the southern Mediterranean waters.
Rêver la pandémie
Authors: Renard Delphine
Published: December 2022

En se fondant sur des écrits de Jung concernant les rapports des rêves et du collectif, l’auteure analyse une vingtaine de rêves des premiers dix-huit mois de la pandémie de covid en France. Il en émerge une évolution chronologique : les cataclysmes naturels ou la guerre cèdent peu à peu la place à des scènes plus réalistes en rapport avec le confinement et les interdits sociaux. L’inconscient collectif se diffracte ainsi à travers les rêves dans les inconscients individuels, permettant alors au moi de chacun, seul apte à le traiter, de s’en saisir pour travailler à un élargissement des consciences.
De quelques dépassements de l’inimitié dans l’Ancien Testament : Israël a aimé ses ennemis
Authors: Nocquet Dany
Published: December 2022

Consacrée à la relation de l’Israël ancien aux peuples qui l’entourent au cours du i er millénaire av. J.-C., la contribution de Dany Nocquet dévoile, à partir de quelques exemples, combien certains textes de l’Ancien Testament décrivent un rapport positif d’Israël aux peuples voisins, mettant en lumière sa gratitude à leur égard. Dans l’évolution de l’Ancien Testament, l’image de l’Israël ancien glisse progressivement d’une singularité de séparation d’avec les autres vers une spécificité d’intégration et de reconnaissance des autres nations. Israël exprime ainsi son amour et ce qu’il doit aux différents groupes qui l’ont accompagné dans son histoire : Philistins, Araméens, parmi d’autres.
Avec Charles Dickens dans le Nord de la France
Authors: Kassis Annpôl
Published: December 2022

Charles Dickens qui a découvert le nord de la France à partir de 1844, va décider de s’installer près de Boulogne dont il apprécie les environs. Annpôl Kassis (Association des Amis de Charles Dickens-France) rappelle ces séjours de l’auteur britannique dans les Hauts-de-France, les œuvres qu’il y a écrites et son lien particulier à Boulogne-sur-Mer.
Routes d’échanges Chine-Europe : émergence du corridor transcaspien et enjeux pour l’Union européenne
Authors: Larçon Jean-Paul , Vadcar Corinne
Published: December 2022

La guerre russe en Ukraine a mis fin, pour les entreprises européennes et pour une durée indéterminée, à la route traditionnelle du corridor Nord, qui transite depuis la Chine via la Russie et le Bélarus avant de rejoindre le territoire des États membres de l’Union européenne (UE). Une partie des échanges de marchandises qui circulent entre la Chine et l’Europe ont commencé à emprunter une route se situant plus au Sud, le corridor transcaspien, qui traverse la mer Caspienne et le Caucase du Sud. Le développement de cette route dépend tout autant de ses avantages économiques potentiels que du jeu des acteurs régionaux et des puissances voisines. Ce corridor est d’autant plus important pour l’Europe qu’il est, au-delà du transport de marchandises par fer et par mer, la voie permettant à l’Europe de diversifier ses approvisionnements en hydrocarbures. Ainsi, l’UE peut faire valoir ses intérêts géoéconomiques dans cet espace turco-caucasien.
17 septembre 1394. La révocation du judaïsme : une occultation ?
Authors: Creusot Chantal
Published: December 2022

Un secret hante les relations entre juifs et chrétiens : un récit satirique, transmis de bouche à oreille, assurait tel le crin dans les tweeds la solidité de la trame judaïque face au message évangélique : le Toledot Yeshu. Le Toledot Yeshu fut-il fatal au judaïsme ? Il est difficile de démontrer le rôle véritable de ce secret mal gardé dans la proscription de 1394. Quant à ce bannissement réputé définitif, ne fut-il pas rien d’autre que simple occultation, une simple éclipse ? Telles sont nos gageures. Car, pour paraphraser Wittgenstein, faut-il continuer à taire ce dont on ne peut parler en toute rigueur historique ?
Internet of Things for smart energy systems: A review on its applications, challenges and future trends
Authors: Orumwense Efe Francis , Abo-Al-Ez Khaled
Published: December 2022

Internet of Things (IoT) is a terminology used for a mixed connection of heterogeneous objects to the internet and to each other with the employment of recent technological and communication infrastructures. Its incorporation into engineering systems have gradually become very popular in recent times as it promises to transform and ease the life of end users. The use of IoT in smart energy systems (SES) facilitates an ample offer of variety of applications that transverses through a wide range of areas in energy systems. With the numerous benefits that includes unmatched fast communication between subsystems, the maximization of energy use, the decrease in environmental impacts and a boost in the dividends of renewable energies, IoT has grown into an emerging innovative technology to be integrated into smart energy systems. In this work, we have provided an overview of the link between SES, IoT and Internet of Energy (IoE). The main applications of IoT in smart energy systems consisting of smart industries, smart homes and buildings, and smart cities are explored and analyzed. The paper also explores the challenges limiting the employment of IoT technologies in SES and the possible remedies to these challenges. In addition, the future trends of this technology, its research direction and reasons why industry should adopt it are also addressed. The aim of this work is to furnish researchers in this field, decision and energy policy makers, energy economist and energy administrators with a possible literature outline on the roles and impacts of IoT technology in smart energy systems.
Synopsis of the genus Tamarix (Tamaricaceae) in the Iberian Peninsula and Balearic Islands
Authors: Villar José Luis , Alonso María Ángeles , Crespo Manuel B.
Published: December 2022

A taxonomic revision of the genus Tamarix for the Iberian Peninsula and Balearic Islands is provided, updating the Flora iberica account published in 1993. A new dichotomous key for the Iberian and Balearic species is also included. The presence of certain number of species previously cited for the study area (T. arborea, T. canariensis, T. dalmatica, T. mannifera, T. mascatensis, T. meyeri, T. octandra, T. rosea, and T. tetragyna) is discarded or considered doubtful. Seven species are accepted: three of them are native (T. africana, T. boveana, and T. gallica) and one species (T. parviflora) was probably introduced over a century ago. Three more species (T. aphylla, T. chinensis, and T. ramosissima) have been introduced more recently. Two of them, Tamarix chinensis and T. ramosissima, are grouped as T. gr. ramosissima due to their high morphological resemblance. A new hybrid between T. boveana and T. gallica is also described under the name of Tamarix × verae.
Patrimonio territorial en las políticas culturales de Andalucía
Authors: Albarrán Periáñez José David , De la Calle Vaquero Manuel , Troitiño Torralba Nieves Libertad
Published: December 2022

En las últimas décadas el concepto de patrimonio territorial ha adquirido una notable repercusión en la literatura académica. El propósito de esta investigación es evaluar en qué medida este concepto está presente en la política cultural contemporánea, tomando como referencia el caso específico de Andalucía (España). El trabajo parte de una amplia reflexión teórica que ha permitido identificar cuáles son las principales dimensiones asociadas al concepto de patrimonio territorial en el ámbito académico y doctrinal. Mediante un análisis de contenido, se ha procedido a la identificación de estas dimensiones en los instrumentos legales y operativos puestos en marcha durante las últimas décadas por la administración regional. Los resultados de este estudio permiten afirmar que dicha integración se ha producido fundamentalmente a nivel teórico, siendo su aplicación práctica muy limitada. El origen del propio concepto en el ámbito de las ciencias del territorio ha determinado que su extrapolación al ámbito de las políticas culturales funcione sólo en el nivel discursivo. En la práctica, la persistencia en este ámbito de las lógicas de la protección cultural ha implicado fundamentalmente una materialización del concepto a partir de la identificación de paisajes de valores culturales excepcionales, suponiendo esta una lectura sesgada y limitada al valor de la declaración.
Normas emocionales en la movilidad centroamericana. Orden moral, ideal familiar y comunidad emocional en El Salvador del siglo XVIII
Authors: Castellón Osegueda José Ricardo
Published: December 2022

Este artículo estudia la conducta moral y sexual de los pobladores del actual El Salvador en el siglo XVIII, un período de considerable movilidad, tanto social como geográfica. Propone la existencia de un conjunto de normas emocionales ad-hoc a la realidad geográfica, económica y social de la región. Al ser un tema poco estudiado, sus fuentes principales son de carácter primario, en tanto que su cuerpo teórico aúna familia, movilidad y emociones y las trata desde la óptica de la historia social latinoamericana. Metodológicamente, la información primaria transita por ese tamiz para mostrar cómo la comunidad emocional del pasado procuró, en el contexto de la movilidad, la supervivencia social.
México en el Semanario Pintoresco Español (1836-1857)
Authors: Amores Montserrat
Published: December 2022

En el proceso de construcción de identidades nacionales, la prensa ilustrada jugó un papel sustancial durante el siglo XIX. El artículo analiza los textos y las ilustraciones de México en el Semanario Pintoresco Español (1836-1857) como un estudio de caso representativo de las revistas ilustradas españolas del periodo. El principal objetivo es mostrar la formación del imaginario mexicano en España en un momento histórico crucial para las relaciones entre los dos países. Para su realización se aplica la metodología de los estudios sobre transferencias culturales al identificar el texto o la ilustración original, analizar su adaptación, mostrar su nuevo significado al incluirse en otro sistema cultural y compararlo con otros textos de autores españoles. De su análisis se desprende una imagen imperial y tutelar de España que intenta reafirmar su importancia en México. Este país se presenta como una nación fascinante, pero aún inmadura como estado, amenazado por potencias externas y todavía atractiva para España en términos económicos.
Liberalismo, republicanismo y religión: Francisco de Paula González Vigil ante la Inquisición de Roma (1850-1860)
Authors: Tcherbbis Testa Jimena
Published: December 2022

El artículo reconstruye, a partir del cruce de la historia política y la historia intelectual, cómo se posicionó el clérigo y publicista peruano Francisco de Paula González Vigil ante la Inquisición. Y lo hace a través del análisis de un corpus seleccionado de su obra en la que problematiza la relación entre el liberalismo, el republicanismo y la religión, en clave transnacional. Se demuestra que su reflexión sobre la Inquisición no evocaba únicamente el pasado colonial sino también las encrucijadas de su tiempo, pues protestó ante el secuestro del niño judío Edgardo Mortara por parte del Santo Oficio en 1858. En efecto, su propuesta de imaginar al catolicismo en el marco de un proyecto liberal republicano lo enfrentó a la condena de la Inquisición de Roma por entonces vigente.
Enlaces matrimoniales y zona de residencia: ¿estrategias de inserción del inmigrante gallego en Santiago de Cuba entre 1902 y 1933?
Authors: García Salgado Mónica de la Caridad
Published: December 2022

El artículo estudia los enlaces matrimoniales y las zonas de residencia de los inmigrantes gallegos, como indicadores de su inserción social en el término municipal de Santiago de Cuba entre 1902 y 1933. Para ello se empleó información inédita contenida en los Libros de Ciudadanía y en los Protocolos Notariales, ubicados ambos en el Archivo Histórico Provincial de Santiago de Cuba. Sobre esta base, se aplicaron métodos como el análisis-síntesis, inductivo-deductivo, hermenéutico y la triangulación de fuentes. Ello permitió concluir que, entre los modos de inserción utilizados, los citados arriba resultaron menos empleados que otros, pues implicaban el desprendimiento de arraigados elementos de su cultura originaria.
La Revolución cubana de cara al desafío ideológico de la «vía chilena al socialismo» (1959-1973)
Authors: Pedemonte Rafael
Published: December 2022

Mediante un conjunto de fuentes inéditas (informes diplomáticos del Ministerio de Relaciones Exteriores de Cuba y entrevistas efectuadas por el autor en Cuba y Chile), el presente artículo se interroga sobre la interpretación cubana del proyecto de la «vía chilena al socialismo», personificada por Salvador Allende, presidente entre 1970-1973. A través del análisis de diversos comentarios y evaluaciones, este trabajo muestra que el interés cubano por ponderar la viabilidad de la vía pacífica hacia el socialismo se manifestó a lo largo de toda la década de 1960, y no solo a partir de 1970, año del triunfo electoral de la Unidad Popular. El camino trazado por Allende y parte de la izquierda chilena parecía contradecir los ejes de la narrativa revolucionaria estampillada a la luz del pasado insurreccional de la isla. En ese sentido, imperó en Cuba un cierto pesimismo respecto a las posibilidades de éxito de la «vía chilena», pesimismo confirmado con el golpe de Estado de 1973.
El testamento de Benveniste Nansi de Ragusa (1571) y su nulidad halájica según R. Samuel de Medina
Authors: Orfali Moisés
Published: December 2022

En el caso aquí tratado se estudia la impugnación del testamento del judío Benveniste Nansi, asesino confeso de otro correligionario suyo de la comunidad sefardí de Ragusa (Dubrovnik) y, sentenciado a la pena capital, fue ejecutado por las autoridades cristianas locales. En este único juicio de asesinato entre judíos en aquella pequeña comunidad, el testamento del reo fue redactado ante un escribano gentil y el verdugo, circunstancia que de por sí podría ilegitimar el testamento desde el punto de vista de la halajá. El análisis de la impugnación realizado por una de las ilustres autoridades sefardíes de Salónica, R. Samuel de Medina, demuestra no solo la aplicación del método de especulación talmúdica y jurisprudencial hispanohebrea que aprendió en las escuelas rabínicas de dos de los eminentes maestros de los expulsados de España, sino también sus razones personales para ilegitimar el testamento a causa y debido a la negativa imagen que tenía tanto de la república de Ragusa como de sus instituciones jurídicas y legales.
La unión y separación de palabras en el Dotrino para criaturas: ¿resultado del cruce editorial entre sefardíes y asquenazíes o voluntad de innovación?
Authors: Marquínez Estibaliz
Published: December 2022

En este artículo se analizan los supuestos errores gráficos de un breve texto pedagógico en judeoespañol aljamiado, el Dotrino para criaturas, que afectan principalmente a la unión y separación de palabras. Este texto de Yisrael Bajar Ḥayim de Belgrado fue publicado como anexo al libro de oraciones Bet Tefilá Icaré, en una de las imprentas de la Comunidad Judía de Viena. El objetivo de este trabajo es determinar si los errores relacionados con la disposición gráfica del texto se deben a una mala interpretación del manuscrito original por parte de un editor probablemente asquenazí o nacen de una voluntad de innovación del autor. Así, se realiza un análisis exhaustivo de las uniones y separaciones gráficas anómalas en las ediciones de Viena 1821/1826 y Trieste 1829, tratando de establecer patrones que indiquen algún tipo de sistematicidad o una mera arbitrariedad.
Mémoire civique et histoire provinciale : le cas de la Narbonnaise
Authors: Christol Michel
Published: December 2022

Au-delà d’une histoire commune, les sources littéraires (Pomponius Mela, Pline l’Ancien) font apparaître la diversité et la hiérarchie des communautés humaines qui constituent la province. Ces particularités, perceptibles au niveau le plus général, construisent aussi, au niveau le plus élémentaire, celui des communautés ou cités, une mémoire civique, faite de différenciations. Son empreinte est durable et elle s’exprime en particulier dans l’épigraphie officielle.
Les supports d’identité en Achaïe romaine sous le Haut-Empire
Authors: Hoët-van Cauwenberghe Christine
Published: December 2022

Les Grecs d’époque romaine disposent de plusieurs supports d’identité. La cité et les ligues restent des cadres importants pour les populations. La province d’Achaïe et sa capitale, la colonie romaine de Corinthe, peuvent sembler, au premier abord, moins attractives. Les élites gréco-romaines des cités, en particulier des cités libres, privilégient le lien direct avec le prince. Le modèle tend à être fondé sur l’agon et sur le fait d’assumer les fonctions pour devenir philopatris et philocaesar.
Les Lètes et leur devenir : de la citoyenneté à la citoyenneté (fin du IIIe – milieu du Ve siècle)
Authors: Chauvot Alain
Published: December 2022

Quels rapports entretient la notion de Laetus avec celles de ciuis, prouincialis, gentilis ou barbarus ? La réponse passe par la mise en place d’une périodisation. La structure létique a d’abord été utilisée pour encadrer l’installation de citoyens anciens prisonniers de barbares puis pour des barbares transférés dans l’Empire : dans les deux cas, des possessores établis sur le territoire de cités mais vivant en marge de l’organisation civique, sous l’autorité de préfets, dans le cadre de la militia armata. Cette situation doit être comprise à travers une réflexion plus générale sur la question de la citoyenneté des barbares dans l’empire tardif. En général, les barbares établis ne recevaient pas d’emblée la citoyenneté mais ne vivaient pas en marge du droit romain, dans la mesure où le ius gentium dont ils relevaient pouvait aussi s’appliquer aux citoyens romains. Les Lètes qui étaient qualifiés de gentiles devaient être tous, originellement, non citoyens, mais, par le biais du service militaire, certains devinrent citoyens. D’autre part, les communautés de Lètes originellement constituées de citoyens n’étaient pas fermées aux pérégrins. Au milieu du IVe siècle, on perçoit bien la différence entre Lètes barbares et ceux qui ne le sont pas. Progressivement, le terme gentilis est apparu comme compatible avec la citoyenneté, alors même que les termes gentiles et prouinciales continuaient de s’opposer ; cette ambiguïté a dû se développer de plus en plus dans le premier tiers du Ve siècle et transparaît dans le Code Théodosien, mais finit par être levée dès 439. Au milieu du Ve siècle, tous les Lètes sont considérés comme des citoyens. Sans doute pouvait-on dire alors que des Lètes, d’abord sujets de l’empereur, pouvaient être simultanément ciues, prouinciales, gentiles voire barbari.
La dimension politique de l’éducation au changement climatique en temps de COVID-19
Authors: García-Vinuesa Antonio , González-Gaudiano Edgar J. , Meira Cartea Pablo Á.
Published: December 2022

L’éclatement de la crise sanitaire mondiale en pleine crise climatique planétaire a permis de saisir de fortes articulations entre celles-ci : leurs origines et leurs impacts sur les processus socio-écologiques mettent en évidence la problématique structurelle d'un système économique capitaliste dont le fonctionnement est axé sur l'exploitation intensive d'une planète finie et à bout de souffle. Une telle réalité est dissimulée par une stratégie idéologico-politique basée sur l'homogénéisation culturelle et la colonisation d'éléments de représentation symbolique. Dans ce processus complexe, la communication de masse et les processus éducatifs deviennent des outils majeurs pour instaurer une concentration monopolistique d'idéaux et d'imaginaires sociaux, ainsi que des modes de vie conformes aux intérêts du système. Les intentions associées à de tels intérêts ont été révélées par la pandémie et le seront encore davantage lorsque les points de basculement de plus en plus critiques du système climatique terrestre commenceront à se produire plus tôt que tard. Ainsi, une nouvelle opportunité, nécessaire et urgente, apparaît pour réfléchir à la dérive des systèmes éducatifs vers une vision utilitaire de l'éducation : il importe de repenser ces systèmes d'un point de vue critique, intégrant les apports des sciences humaines et sociales, de l'éducation relative à l’environnement et de l'enseignement des sciences dans les politiques et pratiques éducatives, permettant de développer une éducation qui tienne compte de ce qui est non négociable à la lumière de la justice sociale et climatique.
Considerations for the Effective National CDO Policy
Authors: Lee Jinmyeong , Yoon Sangpil , Kim Beopyeon , Kwon Hunyeong
Published: December 2022

Data is a strategic asset for digital transformation. National innovation based on data has become a matter of global competition and survival. For pursuing a national innovation, it is important that the governance clearly defines the role and responsibility to lead innovation at the national level. In this regard, a national chief data officer (CDO) system has emerged recently as a new paradigm for national data innovation, mainly in the United States, the United Kingdom, and South Korea. This study employs a comparative approach to explaining the trends and common features of the national CDO system. The focal point of analysis is the legal base of CDO system, organization and governance, the required capability and authority of CDO, and its hiring process. Summing up, the study shows that an organization-wide awareness of the benefits of data innovation, a powerful authority to lead and coordinate regarding agencies, and a competent supporting organization are crucial to the successful operation of a CDO system.
The Lack of IT on Post-Conflict Regions
Authors: Cocaj Halime
Published: December 2022

Post conflict is a term for category of developing countries from civil war, recent conflict, or security crisis. From extreme damaged infrastructure, they require significant help to provide security and development. Post-conflict countries, other than developing ones, they have not received much attention on development in information technology (IT) and modern education. Lack of technology use has manifested in on lower productivity and innovation. Regions with major roles of IT face industrial revolution. Kosovo is a case study for this research investigation on post-conflict countries known also as new born countries (NBC). Research will investigate students in primary, secondary, and tertiary education. Literature cases draw concerns of poor performance.
QSAR Study, Molecular Docking, and Pharmacokinetic Analysis of Substituted Dihydropyrimidinone as ErbB2 Inhibitors
Authors: Deoghuria Sayandeep , Mahapatra Aastha , Das Nilima R. , Achary P. Ganga Raju , Sharma Tripti
Published: December 2022

ErbB2 is considered to be the preferred dimerization partner among the ErbB receptor tyrosine kinase (RTK) family. They are implicated in the development and progression of several cancer types, majorly breast cancer-related maladies. In the current study, quantitative structure-activity relationship (QSAR), molecular docking approaches and prediction of pharmacokinetic properties were utilized to identify promising ErbB2 inhibitors from a series of dihydropyrimidinone (DHPM) derivatives. The results indicated that the QSAR models of ErbB2 inhibitory activity is robust and has a very good prediction capacity, as exhibited by the value of R which is 0.9194. Furthermore, 6 compounds were shortlisted with potentially high biological activity. These compounds were subjected to drug likeliness, molecular docking and pharmacokinetic evaluations which indicated that the compounds are orally bioavailable and exhibit suitable proficiency as ErbB2 antagonists.
The Impact of Quality of Big Data Marketing Analytics (BDMA) on the Market and Financial Performance
Authors: Haverila Matti , Haverila Kai Christian , Mohiuddin Muhammad , Su Zhan
Published: December 2022

Impact of quality of big data marketing analytics (BDMA) was analyzed, with special attention to the BDMA dimensions of technology and information quality, and the level of deployment on perceived market and financial performance. The sample was collected with Canadian and U.S. marketing respondents with experience in big data (BD) deployment (N=236). The model analysis was done with PLS-SEM. The study highlights how technology and information quality are related to the market and financial performance with high predictive validity and strength. Also, the level of deployment had a significant impact on both the technology and information quality in BDMA. The study provides an understanding of how the level of deployment impacts BDMA technology and information quality dimensions; and how they individually contribute to the enhancement of a firm's market and financial performance from the perspective of marketing personnel with experience in deployment of BDMA. It is also evident that the more advanced the firm is in the deployment of BD, the higher the technology and information quality.
Digital Technology Adoption and Sustainable Development Performance of Strategic Emerging Industries
Authors: Li Xing , Wu Ting , Zhang Hongjuan , Yang Deyan
Published: December 2022

Although digital technology adoption has received more attention from researchers in the field of innovation management research, the micro mechanism of the impact of digital technology adoption on the sustainable development of enterprises has not been fully investigated. The objective of this study is to identify the existing relationships between digital technology adoption, digital technology capability, digital strategy, and sustainable development performance of strategic emerging industries. A theoretical conceptual model was developed that analyzed the primary data from 385 sample enterprises in strategic emerging industries. The results indicated that digital technology adoption had a positive influence on both enterprises' economic performance and environmental performance in strategic emerging industries. Digital technology capability played a mediating role in the relationship between digital technology adoption and enterprises' economic performance and environmental performance. And digital strategy strengthened the influence of digital technology adoption on enterprises.
Microstructural and Mechanical Behaviourial Properties of Cold Compacted Ultra-Fined Grained (UFG) Magnesium AZ31B Alloy Prepared by Ball Milling Process
Authors: Mansoor P. , Dasharath S.M.
Published: December 2022

The Magnesium and its alloys are majorly utilized in automotive, aerospace, and biomedical applications because of their extensive properties. The approach for the preparation of the Magnesium materials is done by modern powder metallurgy. This method allows us to study the structural, mechanical, and controlled corrosion resistance. In the present paper, the effect of cold compaction on magnesium AZ31B alloy are studied, were Ultra-Fined Grained (UFG) Magnesium AZ31B alloys of particle size 60 nm were obtained by 8hrs of Ball milling followed by cold compaction at the pressure of 40Mpa at laboratory temperatures. Sintering process for 8hrs were done for cold compacted specimens at temperatures of 425°C,450°C and 475°C in a Horizontal tubular vacuum furnace. Influence of compacting pressure and sintering were investigated for properties of microstructural, mechanical and corrosion resistance. It was observed that, during cold compaction process for Magnesium AZ31B alloys the product grains are distributed uniformly with less pores and particle boundaries. Homogenization were attended by sintering process and Microstructural, Mechanical properties strength, were shown extensive results of hardness and compressive strength of 516Mpa and 123Mpa, as the sintering temperatures were increased from 425°C to 475°C. The lowest corrosion resistance of 0.35 mm.y-1 is obtained for compacted AZ31B alloy as the temperature of sintering temperature raised to 475°C.
Utilization of Spent Coffee Grounds with Sodium Hydroxide (NaOH) as Electrolyte for Applications Bio-Battery
Authors: Haliq Ridhwan , Kan Kelvin , Ismail Andi Idhil
Published: December 2022

Coffee is a drink that is very well known and popular throughout the world. Currently, many coffees produce a large number of spent coffee grounds. Nearly 50% of the world produces coffee, resulting in about 6 million tons of spent coffee grounds per year. This research does on the manufacture of batteries made from spent coffee grounds with the addition of natrium hydroxide (NaOH) with a variation of dissolution of 30%, 50%, and 70% and heating at a temperature of 250°C;350°C; and 450°C. The result is a variation of heating 450°C (with the combination of all variations) resilient in the use of 52 days with 0.0405 W maximum power. Observations were made using the Scanning Electron Microscope EDX. The results of the morphology of the spent coffee grounds have a flake shape that looks like carbon and indicates the presence of porosity in the spent coffee grounds after being given a solvent with a content of Carbon (C) of 62.78%, Oxygen (O) of 30.82%, Sodium (Na) of 6.4%. Characterization using X-Ray Diffraction (XRD) At a temperature of (250°C, 70% concentration) with 2θ is 31.3268°, (350°C,70% concentration) with 2θ is 30.4838º, and (450°C, 70% concentration) with 2θ is 31.6880º. From these data, spent coffee grounds after adding NaOH could be considered an eco-friendly electrolyte material for the world.
Synthesis of Activated Carbon from Paper Waste Using Microwave-Assisted Pyrolysis Method
Authors: Wardah Jauharatul , Karisma Achmad Dwitama , Soeprijanto Soeprijanto , Pudjiastuti Lily , Zuchrillah Daril Ridho , Puspita Niniek Fajar , Nazilah Shofi’atin
Published: December 2022

The Microwave-Assisted Pyrolysis (MAP) method has the potential to be applied for the synthesis of dye adsorbents. In this work, the activated carbon (AC) was synthesized from the paper waste by the MAP method. The deinking paper waste was carbonized and activated using microwave heating with a frequency of 2.45 GHz and various power outputs (450, 600, and 800 W). The activation was carried out using ZnCl2 solution as an activating reagent. The impregnation with ZnCl2 is expected to give a clearer porous structure by absorbing microwave heat from inside and outside at the same time. The heating rate during the activation process can reach 211°C/min, which shows that the MAP method has the potential to provide a faster heating rate and shorter processing time compared to the furnace pyrolysis. The effect of the synthesis parameter such as impregnation ratio, time, and radiation power was studied from the adsorption efficiency on methylene blue (MB) dye. The activated carbon was characterized using the proximate test, SEM, and XRD. Best Result of the MAP method was obtained with a ratio of 1:1 (ZnCl2: Carbon) within 5 minutes of radiating, power of 800 W, with the results that AC can adsorb MB solution up to 2100 ppm with a maximum adsorption capacity of 1036.3 mg/g, and the efficiency of 99.87%.
Friction and Wear Properties of Multilayer Films Designed on Tantalum Substrate
Authors: Guo Dong , Zheng Wu Shuai , Huang Teng Long , Zhang Shu Ling , Guo Feng
Published: December 2022

In this paper, a titanium nitride film (TiN) monolayer film was deposited on a pure Tantalum (Ta) substrate with Ti as an intermediate layer by magnetron sputtering technique, and a Ta/Ti/DLC (diamond-like carbon)/Ti/TiN/DLC multilayer film was designed. Raman spectroscopy and scanning electron microscopy were used to observe the film structure and morphology. Friction and wear properties of Ta/Ti/TiN monolayer film and Ta/Ti/DLC/Ti/TiN/DLC multilayer film were analyzed by UMT-3 tester. The results show that the surface of multilayer film is denser and better bonded than TiN monolayer film. Under dry friction conditions, the friction coefficient of TiN monolayer film is stable at about 0.45. In contrast, the friction coefficient of DLC multilayer film remains around 0.15 with very small fluctuation during the whole friction process. This is determined by the inherent characteristics of DLC film, which is composed of sp2-C graphite structure and sp3-C diamond structure. From the analysis of the wear mechanism, the Ta substrate mainly undergoes adhesive wear and abrasive wear, however, the TiN monolayer film and Ta/Ti/DLC/Ti/TiN/DLC multilayer films mainly undergo abrasive wear mechanism. The friction coefficient of TiN monolayer fluctuates more than that of dry friction conditions in the body-liquid environment, and finally stabilize at about 0.5. The friction coefficient of DLC multilayer films does not differ much from those of dry friction conditions. This is because the TiN monolayer film generates a large amount of abrasive chips to fill the scratches in the body fluid environment, accompanied by the peeling and flaking of the compacted abrasive chips, thus the friction coefficient fluctuates greatly. The DLC multilayer films also undergoes graphitization transfer. In addition, the free hanging bonds of DLC film are passivated, which reduces the degree of adhesive wear. In summary, the DLC multilayer film has better biocompatibility, wear resistance, and stronger bonding.
Binder-Free Fe2O3- C-Ni Composite for Supercapacity Eletrode
Authors: Yang Yu Bin , Zhu Shao Min , Zhang Shuo Jia , Xu Hong Feng
Published: December 2022

Fe2O3-C-Ni heterojunction structured composite on foam Ni was successfully prepared by simple and effective hydrothermal reaction. The obtained material had good structural stability and excellent electrical conductivity. This binder-free Fe2O3-C-Ni electrode exhibits typical pseudocapacitance. Specific capacitance of Fe2O3-C-Ni in 1.0 mol L-1 KOH reaches 844.6 F g-1, which is higher than that of Fe2O3-Ni and C-Ni electrodes. For practice application, assembled Fe2O3-C-Ni//AC capacitor exhibits a long-term cycling performance with remains 79.5% capacitance retention within 20000 cycles at 1 A g-1.
Corrosion Behavior of P110 Steel in Simulated CO2 and Formation Water Environment
Authors: Ji Nan , Zhong Cheng Xu , Zheng Ru Seng , Wang Peng , Zhu Li Juan , Feng Chun
Published: December 2022

The corrosion behavior and mechanism of P110 steel tubing in in low CO2 particle pressure and high salinity formation water environment was investigated through high temperature and high pressure dynamic immersion tests, macro-morphology analysis, scanning electron microscopy(SEM) inspection, energy disperse spectroscopy(EDS) analysis and X-ray diffraction(XRD) analysis. The Results showed that the increasing of CO2 partial pressure accelerated the corrosion process of P110 tubing steel, and the corrosion rates of P110 tubing decreased with the increasing of temperature. Furthermore, the high content of Ca2+ in the formation water also had a big influence on the corrosion behavior of P110 tubing steel, for it could affect the precipitation quantity and morphology of CaCO3 at different temperature and CO2 particle pressure.
Effects of Different Carbon and Nitrogen Sources on the Biomass of Molecularly Identified Fungi Associated with Fruit Rot of Tomato
Authors: Garuba T. , Mustapha O. T. , Oyeyiola G. P.
Published: December 2022

Tomato (Solanum lycopersicum L.) fruit is an important component of the diet but pathogens are a threat to its availability. The purpose of this research work was to identify fungi associated with tomato fruit rot and study their biomass in different carbon and nitrogen sources. Four varieties of tomato were employed in this study: two local varieties (Hausa and Yoruba land races) and two improved varieties (Tropimech and Roma VF). Freshly harvested tomato fruits were collected and stored at room temperature until rot sets in. Fungi were isolated from rotted fruits using Potato Dextrose Agar. The isolated fungi were identified using macromorphological and micromorphological features. Internal Transcribed Spacer (ITS) regions of the ribosomal DNA (rDNA) of fungi were amplified and sequenced. Pathogenicity tests and physiological studies were conducted using fructose, sucrose, and starch as carbon sources and calcium nitrate, sodium nitrate, ammonium chloride, and urea as nitrogen sources. The biomass of the isolates was assessed in response to carbon and nitrogen sources. Aspergillus japonicus, Rhizopus oryzae, Curvularia geniculata, Fusarium proliferatum, and Fusarium oxysporum were isolated from all the varieties. The isolates were differently pathogenic and local tomato varieties were more susceptible to the tested fungi than improved varieties. Comparatively, the fastest mycelial growth was observed in R. oryzae (8.30cm) in the PDA medium at Day 7, followed by A. japonicus (6.60cm). The two Fusarium species grew slower. Biomass of the fungi revealed that fungi showed differential abilities in utilizing different carbon and nitrogen sources.
How Strong Is the Linkage between Tourism and Economic Growth in Sri Lanka; Evidence From 1971-2020
Authors: Dilhani E. V. D. , Abeynayake N. R.
Published: December 2022

In the late twentieth and early twenty-first century, tourism is one of the leading industries in the world economy, including a number of employees, participation in social products, national income, and total consumption. This study was conducted to examine the relationship between tourism and the economy of Sri Lanka by considering the structural changes of both sectors during the 1971-2020 period. Quantitative research Methodology has been applied with preliminary and secondary time series analysis. Annual Gross Domestic Product and Annual Official Tourist Receipts were modeled in the study. Dummy variables were included to present the structural changes in the estimated time series models. Annual time series data were examined by estimating the time series regression model. The backward step-wise regression estimations were applied to find the best model with Minimum Absolute Percentage Error value for forecasted values. The selected model among all estimated models was significant under all model adequacy statistical tests and that was sound enough to provide appropriateness of the tourism-led growth hypothesis to Sri Lanka. Sri Lanka is facing an economic crisis basically due to the excessive exchange rate for the US$ and the lack of Dollars in Sri Lankan reserve funds. It is possible to keep more attention on the tourism development of Sri Lanka as an immediate action to recover Sri Lanka from this rapid economic instability.