bluuebunny/crossref_metadata_2025 huggingface dataset:
ESTUDO COMPARATIVO DA FRAÇÃO SOLÚVEL DO BIODIESEL B100 COM O DIESEL COMERCIAL S500 NA ÁGUA DO MAR
Authors: Oliveira Ingrid de C. dos S. , Anjos Aécia Seleide Dantas dos , Silva Letícia M. G. da , França Maíra R. G. de , Hilário Larissa Sobral , Anjos Raoni Batista dos , Gondim Amanda Duarte , Silva Djalma Ribeiro da
Published: September 2024

Os derramamentos de óleos derivados de petróleo causam incontáveis danos ao ecossistema marinho, impulsionando a demanda por combustíveis alternativos e menos poluentes. O biodiesel produzido a partir de recursos renováveis tem se mostrado uma alternativa viável ao diesel comercial por ser biodegradável, e menos tóxico. Neste trabalho foram realizadas simulações de derramamento em água do mar com a finalidade de avaliar e comparar a concentração dos hidrocarbonetos totais de petróleo (TPH) na fração solúvel em água (FSA) do biodiesel B100 com o diesel comercial S500, para isso foi utilizada a metodologia de planejamento de experimentos (DOE). O biodiesel B100 apresentou menor concentração de TPH em ambos os tempos de contato estabelecidos em comparação ao diesel comercial S500, sendo considerado menos poluente. Já o S500 com 1h de contato já apresentou concentração elevada.
BIOQAV MÉTODO ALCOHOL TO JET PARA PRODUÇÃO DE BIOCOMBUSTÍVEL DE AVIAÇÃO
Authors: Sousa Jessica Nicole Barros de , Souza Maria Vitória Ferreira de , Brito Luana Gabriela Costa , Araújo Aruzza Mabel de Morais , Gondim Amanda Duarte
Published: September 2024

Vários processos para a produção de biocombustíveis foram qualificados até o momento e alguns caminhos foram demonstrados com sucesso comercial em capacidade ilimitada em todo o mundo. Umas das vias alternativas para a produção de biocombustíveis é o processo tecnológico ATJ (Alcohol to jet - Álcool para avião). Neste estudo fez-se uma revisão bibliográfica do método ATJ, processo utilizado para a conversão de álcoois como (metanol, etanol, butanol…) em uma mistura de combustível de aviação alternativa com base em etapas catalíticas, são elas: desidratação do álcool, oligomerização, hidratação e destilação.
Prevalence of Urinary Tract Infections in Hospitalized Diabetic Patients: Insights from a Guntur-A Case Study
Authors: Palla Chandra Venkata Sai , Allareddy Namratha Reddy , Battarusetty Purandeswari , Dharanikota Padmavathi , Janapati Gowrisri
Published: September 2024

Background: The existence of evidence was always given when diabetes predisposes individuals to a higher likelihood of experiencing asymptomatic bacteriuria and urinary tract infections. Urinary tract infections(UTIs) are highly prevalent among individuals with diabetes, emerging as the foremost type of bacterial infection within this demographic.
Objective: This study was done to establish the prevalence of urinary tract infections in hospitalized diabetics and the most common causative strains.
Materials and Methods: The research samples are consisted of 649 individuals diagnosed with 373 being women and 276 being men. These patients were admitted to the Government General Hospital (GGH), Guntur in various departments such as Urology, Nephrology, and the general ward between January and December 2023. We gathered individuals' personal medical information and conducted urine cultures. For statistical analysis we used Graph Pad Prism 10.2.3; the significance of the difference between the percentage values was assessed using Fisher’s exact test.
Results: Among the patients studied, 110 (17%) had positive urine cultures. Of these 110 urinary tract infections, 86 (78.3%) were cases of asymptomatic bacteriuria. Escherichia coli was the most commonly identified bacterium, responsible for 68.9% of the infections.
Conclusion: Urinary tract infections are prevalent among diabetic individuals. Given the significant number of asymptomatic cases, it is advisable to conduct urine cultures for all hospitalized diabetic patients.
São Paulo, Xangai : convergências, choques e perspectivas daparadiplomacia nas relações bilaterais Brasil-China
Authors: Sousa Ana Tereza Lopes Marra de , Rodrigues Gilberto M. A.
Published: September 2024

Valendo-se de uma estrutura paradiplomática desenvolvida ao longo dos anos 1990 e 2000, o estado de São Paulo (ESP) passou a incrementar suas relações com a China, em convergência com o adensamento das relações sino-brasileiras em nível subnacional. Entretanto, durante a gestão de Jair Bolsonaro (2019-2022), o ESP entrou em choque com o governo federal, incluindo as suas relações paradiplomáticas, que se desenvolveram em conflito com a política externa brasileira (PEB) de Bolsonaro e se exacerbaram com a pandemia da covid-19, levando o ESP a realizar ações paradiplomáticas não apenas comerciais, mas sanitárias e políticas. Com o fim da pandemia e as eleições de 2022, o ESP passou a ser governado em 2023 por um político do campo bolsonarista. O artigo tem como objetivo investigar as convergências, choques e perspectivas da paradiplomacia de São Paulo com a China, maior parceiro comercial do país e sócio estratégico em várias áreas, visando compreender como as relações internacionais de São Paulo têm se pautado na chave cooperação-conflito com a União, tendo a China como foco.
Centenary Paper: The Celestial Knights of San Millán: Forgery and Allegory in Twelfth-Century Spain
Authors: PETERSON DAVID
Published: September 2024

In the
Votos de San Millán
, the prologue to the
Becerro Galicano
cartulary, two saints –Millán and Santiago– appear to inspire a combined Leonese and Castilian host to victory over a Moorish army at the legendary Battle of Hacinas. The
Votos
was in all probability composed between May 1194 and July 1195, i. e., just after the Treaty of Tordehumos established a ten-year truce between León and Castile brokered by the papal legate Gregory of St Angelo on behalf of his uncle Celestine III, intended to smooth the way for a victorious Christian alliance against the Almohads. We contend that the legendary account of battle that appears in the
Votos
is intended as an allegory for the prospective alliance, before this was shattered at the Battle of Alarcos in July 1195.
Substitution or creation? Identifying the role of artificial intelligence in employment
Authors: Qin Meng , Chang Hsu-Ling , Su Chi-Wei , Răcătăian Raluca-Ioana , Crăciun Andreea-Florentina
Published: September 2024

Recognising the significant role of artificial intelligence in the labour market is essential for China to develop sustainably. The research utilises the mixed frequency vector auto-regression (MF-VAR) technique, which would innovatively incorporate data at different frequencies into one model to identify the intricate correlation between the monthly artificial intelligence index (AII) and the quarterly unemployment rate (UR) in China. Through comparison, the MF-VAR method has a more substantial explanatory power than the low-frequency VAR (LF-VAR) model, the impulse responses of the former reveal that AII exerts favourable and adverse influences on UR. Among them, the positive effect occurs on the AII in the first and second months. In contrast, the negative one appears on the AII in the third month, highlighting that artificial intelligence has both stimulating and inhibiting effects on the labour market in China. By analysing UR’s predictive error variance decomposition, the total impact of China’s artificial intelligence technology on employment is a substitution; this outcome is accordant with the theoretical dis¬cussion. In the new round of scientific and technological revolution and industrial transformation, meaningful recommendations for China would be put forward to avert the wave of unemployment brought by the development of artificial intelligence technology.
Modeling Compact Object Mergers GW190814 and GW200210 and Other Self-bound Compact Stars with Dark Matter Induced by Gravitational Decoupling and Its Significance to the Mass Gap
Authors: Maurya S. K. , Errehymy Abdelghani , Newton Singh Ksh. , Aziz Abdul , Hansraj Sudan , Ray Saibal
Published: September 2024

We present a rigorous study of compact objects within f(Q) gravity where electrical fields and dark matter are studied and provide novel mass–radius relations with models falling in the mass gap of the events GW190814 and GW200210. After formulating the basic equations and finding their relevant solutions, we impose the boundary conditions on the system under treatment. The decoupled solution for the strange stellar model with the dark matter density profile is obtained. The distribution patterns of the effective energy density and the radial as well as the tangential pressure and anisotropy in the system are intensively examined. The stability properties of the stellar configuration and the influence of dark matter are studied. The recent observations of supermassive compact star candidates such as PSR J1614–2230 and PSR J0952–0607 with observed masses greater than or equal to 2 M
⊙ have been employed in our study. Interestingly, the present study predicts the constraints on mass–radius measurements of the observed stars satisfying the equation of state based on the MIT bag model and employing the condition of mimicking, i.e., ρ

θ
=

χ

1

ρ

PI

in f(Q) gravity. Our graphical results exhibit that for a particular M–R curve with fixed values of the parameters, neutron stars having mass less than M
max exist with larger radii within the context of the f(Q) formalism.
The Most Sensitive Radio Recombination Line Measurements Ever Made of the Galactic Warm Ionized Medium
Authors: Bania T. M. , Balser Dana S. , Wenger Trey V. , Ireland Spencer J. , Anderson L. D. , Luisi Matteo
Published: September 2024

Diffuse ionized gas pervades the disk of the Milky Way. We detect extremely faint emission from this Galactic warm ionized medium (WIM) using the Green Bank Telescope to make radio recombination line (RRL) observations toward two Milky Way sight lines: G20, (ℓ, b) = (20°, 0°), and G45, (ℓ, b) = (45°, 0°). We stack 18 consecutive Hnα transitions between 4.3 and 7.1 GHz to derive 〈Hnα〉 spectra that are sensitive to RRL emission from plasmas with emission measures EM ≳ 10 cm−6 pc. Each sight line has two Gaussian-shaped spectral components with emission measures that range between ∼100 and ∼300 cm−6 pc. Because there is no detectable RRL emission at negative LSR velocities, the emitting plasma must be located interior to the solar orbit. The G20 and G45 emission measures imply rms densities of 0.15 and 0.18 cm−3, respectively, if these sight lines are filled with homogeneous plasma. The observed 〈Hnβ〉/〈Hnα〉 line ratios are consistent with LTE excitation for the strongest components. The high-velocity component of G20 has a narrow line width, 13.5 km s−1, that sets an upper limit of ≲4000 K for the plasma electron temperature. This is inconsistent with the ansatz of a canonically pervasive, low-density, ∼10,000 K WIM plasma.
A Comprehensive Analysis of Insight-HXMT Gamma-Ray Burst Data. I. Power Density Spectrum
Authors: Zhou Zi-Min , Wang Xiang-Gao , Liang En-Wei , Cao Jia-Xin , Liu Hui-Ya , Li Cheng-Kui , Li Bing , Lin Da-Bin , Zheng Tian-Ci , Lu Rui-Jing , Xiong Shao-Lin , Wang Ling-Jun , Song Li-Ming , Zhang Shuang-Nan
Published: September 2024

The power density spectrum (PDS) is a powerful tool to study light curves of gamma-ray bursts (GRBs). We show the average PDS and individual PDS analysis with GRB data from the Hard X-ray Modulation Telescope (also named Insight-HXMT). The values of the power-law index of the average PDS (

α

P

¯

) for long GRBs (LGRBs) vary from 1.58 to 1.29 (for 100–245, 245–600, and 600–2000 keV). The Insight-HXMT data allow us to extend the energy of the LGRBs up to 2000 keV, and a relation between

α

P

¯

and energy E is obtained:

α

P

¯

∝

E

−
0.09

(8–2000 keV). We first systematically investigate the average PDS and individual PDSs for short GRBs (SGRBs), and obtain

α

P

¯

∝

E

−
0.07

(8–1000 keV), where the values of

α

P

¯

vary from 1.86 to 1.34. The distribution of the power-law index of an individual PDS (α) of an SGRB is consistent with that of an LGRB, and the α value for the group with a dominant timescale (the bent power law) is higher than that for the group with no dominant timescale (the single power law). Both LGRBs and SGRBs show similar α and

α

P

¯

, which indicates that they may be the result of similar stochastic processes. Typical values of the dominant timescale τ for LGRBs and SGRBs are 1.58 s and 0.02 s, respectively. It seems that τ varies in proportion to the duration of GRBs T
90, with a relation

τ
∝

T

90

0.86

. The GRB light curve may result from superposing a number of pulses with different timescales. No periodic or quasi-periodic signal above the 3σ significance threshold is found in our sample.
Protostellar Disk Formation Regimes: Angular Momentum Conservation versus Magnetic Braking
Authors: Yen Hsi-Wei , Lee Yueh-Ning
Published: September 2024

Protostellar disks around young protostars exhibit diverse properties, with their radii ranging from less than ten to several hundred astronomical units. To investigate the mechanisms shaping this disk radius distribution, we compiled a sample of 27 Class 0 and I single protostars with resolved disks and dynamically determined protostellar masses from the literature. Additionally, we derived the radial profile of the rotational-to-gravitational-energy ratio in dense cores from the observed specific angular momentum profiles in the literature. Using these observed protostellar masses and rotational energy profile, we computed theoretical disk radii from the hydrodynamic and nonideal magnetohydrodynamic (MHD) models in Y.-N. Lee et al. ﻿and generated synthetic samples to compare with the observations. In our theoretical model, the disk radii are determined by hydrodynamics when the central protostar+disk mass is low. After the protostars and disks grow and exceed certain masses, the disk radii become regulated by magnetic braking and nonideal MHD effects. The synthetic disk radius distribution from this model matches well with the observations. This result suggests that hydrodynamics and nonideal MHD can be dominant in different mass regimes (or evolutionary stages), depending on the rotational energy and protostar+disk mass. This model naturally explains the rarity of large (>100 au) disks and the presence of very small (<10 au) disks. It also predicts that the majority of protostellar disks have radii of a few tens of astronomical units, as observed.
Revisiting WASP-19b’s Orbital Evolution: New TESS Data and Apsidal Precession Analysis
Authors: Shen Zoutong
Published: September 2024

Due to the ongoing debate of whether WASP19b is experiencing orbital decay or apsidal precession, I reexamine the orbital evolution of the hot Jupiter WASP-19b using new TESS data from sectors 09, 36, 62, and 63. My comprehensive analysis of transit and occultation timing variations compares models of constant period, orbital decay, and apsidal precession. Results show no significant preference between orbital decay and apsidal precession models. I find a period change rate of −1.40 ± 0.54 ms yr−1, slower than some previous studies but consistent with others. My apsidal precession analysis yields an eccentricity of 0.00178 and a precession rate of 0.036 deg day−1, differing from recent literature. These findings underscore the complexity of WASP-19b’s orbital dynamics and the need for continued long-term monitoring.
A checklist of the predators and parasitoids of the fall webworm Hyphantria cunea (Drury) (Lepidoptera, Erebidae) from around the world
Authors: Cao Liang Ming , Wang Xiao Yi , Petrice Toby R. , Poland Therese M.
Published: September 2024

A checklist of 488 fall webworm Hyphantria cunea (Drury) natural enemies was compiled based on documentation in previous research across its world distribution, including 289 predators and 199 parasitoids. Predators in the checklist include 67 species from 17 families of Insecta, 1 species of Chilopoda, 183 species from 22 families of Arachnida, 1 species of Reptilia, 4 species from 2 families of Amphibia, 33 species from 18 families of Aves. In addition, the checklist includes fall webworm parasitoids from 18 families of Insecta. Among continents, 128 predators and 76 parasitoids were distributed in North America, 78 predators and 62 parasitoids in Asia, and 88 predators and 68 parasitoids in Europe.
Histoire(s) de la diplomatie culturelle française
Authors: Horne Janet
Published: September 2024

Ce chapitre examine quelques stratégies et adaptations de l’Alliance française, notamment en Afrique mais aussi en Amérique latine, dans les années 1950 et 1960, période de réalignement idéologique et politique mondial majeur qui soulève des enjeux critiques à travers tout le Sud global. Nous cherchons à comprendre la spécificité de l’Alliance dans la panoplie des initiatives culturelles françaises à l’œuvre, dans le cas de l’Afrique, à l’avènement des indépendances et, dans le cas de l’Amérique latine, au moment où la guerre froide ravive des enjeux de souveraineté nationale et régionale. La grande nouveauté de l’Alliance et son importance comme acteur culturel, surtout sur le continent africain, se trouvent dans sa capacité et sa volonté de s’adapter aux conditions locales souvent à petite échelle, expérimentant des approches originales sur le terrain, ce qui nous offre une compréhension plus « à ras le sol » de l’histoire de la diplomatie culturelle française.
Histoire(s) de la diplomatie culturelle française
Authors: Martin Laurent
Published: September 2024

Historiquement, c’est le ministère des Affaires étrangères qui conduit la politique culturelle extérieure de la France, au nom de la cohérence de l’action du pays à l’étranger. Pourtant, le rôle du ministère de la Culture dans l’animation de cette politique est loin d’être négligeable, en particulier sous les mandats d’André Malraux et de Jack Lang, qui seront analysés ici sous l’angle de l’action culturelle extérieure. Je décrirai les structures qui, au sein du ministère, ont été chargées des affaires internationales, rappellerai l’importance de l’engagement de certaines grandes figures du ministère dans le rayonnement culturel de la France à l’étranger, m’interrogerai sur les rapports entre le ministère de la Culture et celui des Affaires étrangères, et présenterai quelques actions, domaines, programmes dans lesquels le ministère de la Culture s’est particulièrement investi. En somme, je tenterai de caractériser cette « autre diplomatie culturelle » souvent passée sous silence par les ouvrages traitant de ce sujet.
Histoire(s) de la diplomatie culturelle française
Authors: Osmont Matthieu
Published: September 2024

Premier réseau culturel français à l’étranger par sa densité depuis les années 1950, le réseau des instituts et centres culturels français en Allemagne a connu de profondes évolutions depuis sa création au lendemain de la Seconde Guerre mondiale. Né dans le contexte de l’occupation française en Allemagne, il a dû s’adapter à un contexte de restriction budgétaire dès les années 1970. S’appuyant de plus en plus sur les communes et les Länder allemands pour son financement, ce réseau est devenu en partie « franco-allemand », ce qui a transformé le contenu de la diplomatie culturelle française en Allemagne.
Histoire(s) de la diplomatie culturelle française
Authors: Slizyte Gabriele
Published: September 2024

Ce chapitre examine le rôle de l’Association française d’action artistique (AFAA, 1922-2006) dans l’expansion de l’art musical français aux États-Unis, et explore comment celle-ci a facilité les échanges culturels et musicaux franco-américains dans la première moitié du xx e siècle. Pour ce faire, l’AFAA a établi une correspondance avec des personnalités influentes présentes sur place, entretenu une correspondance avec des réseaux consulaires, fourni des lettres de recommandation pour les artistes, négocié des tarifs préférentiels pour leurs tournées américaines et assuré leur surveillance. Le texte souligne l’importance de l’AFAA dans le développement de carrières artistiques et dans le renforcement de la présence artistique française aux États-Unis. Malgré sa discrétion dans l’espace public, l’Association a été un acteur essentiel dans la diffusion de la musique française à l’étranger, tout en établissant des liens inédits entre les artistes et l’État.
Histoire(s) de la diplomatie culturelle française
Authors: Frisani Marcella
Published: September 2024

Circulant d’un espace national à l’autre par le biais de la vente de droits étrangers, les ouvrages ne s’inscrivent pas exclusivement dans un espace marchand et culturel mais intègrent également le système des relations interétatiques. La présence de « bureaux du livre » au sein des services diplomatiques et culturels de la France implantés à l’étranger, qui participent depuis la fin des années 1980 de la construction localisée d’un marché mondial de la traduction, constitue la trace d’un investissement étatique durable dans le domaine du livre. Néanmoins, la cause du livre français à l’étranger pensée sous l’angle de son traitement institutionnel demeure insuffisamment explorée en tant qu’objet scientifique. Nous souhaitons dès lors interroger l’espace des relations culturelles internationales au prisme de la relation entre l’État français et les éditeurs, afin d’objectiver les enjeux de définition d’une politique du livre entre l’après-guerre et les années 1970. À l’appui d’une enquête sociohistorique menée aux Archives diplomatiques de La Courneuve, nous retraçons les conditions d’émergence de la traduction comme modalité de circulation internationale des œuvres en tant que biens symboliques. Son élévation au rang de catégorie légitime d’intervention publique dans le cadre d’une stratégie de modernisation de la diplomatie culturelle et sa graduelle imposition au nom de la réciprocité des échanges sont alors restituées. Tout en mobilisant la théorie des champs de Pierre Bourdieu, nous montrons que la transition à la politique de la traduction est loin d’être un fait spontané, conséquence d’une graduelle intégration des marchés. Se construisant contre la défense du livre français exporté en langue originale et s’inscrivant dans des luttes institutionnelles, l’adoption de cette stratégie constitue un acte symbolique de rupture permettant de réinventer la domination culturelle dans la globalisation.
Histoire(s) de la diplomatie culturelle française
Authors: Delgado Gómez-Escalonilla Lorenzo
Published: September 2024

Au début du xx e siècle, la France avait une forte présence culturelle en Espagne. Son réseau d’enseignement comprenait des instituts culturels, des écoles et des centres de l’Alliance française aux côtés de la Casa de Velázquez à Madrid. Grâce à ce réseau, elle a joué un rôle important dans la formation des élites de son voisin méridional. La guerre civile espagnole et la guerre mondiale ont entraîné de vives tensions politiques bilatérales qui ont réduit le rayonnement français. À partir des années 1950, les tensions se sont apaisées. La politique française a adopté une position plus pragmatique d’acceptation du régime franquiste, et commencé à se donner pour objectif de guider la future réincorporation de l’Espagne dans l’Europe. Au cours de la décennie suivante, l’intérêt pour l’Espagne s’est accru à mesure que ce pays devenait un marché en expansion. Les relations économiques, politiques et militaires se sont améliorées. L’enseignement de la langue et de la culture françaises restait une priorité, mais une autre dimension a commencé à prendre de l’importance : la coopération scientifique et technique. Face à une action culturelle plus ancrée dans le passé que projetée vers l’avenir, la coopération scientifique et technique et la formation du capital humain ont représenté pour l’État et les entreprises françaises un atout beaucoup plus pratique et adapté à des intérêts spécifiques. La signature de l’accord de coopération culturelle, scientifique et technique entre les deux pays, en février 1969, a établi un cadre d’action pour réglementer les activités bilatérales. La collaboration antérieure a été approfondie et élargie, au cours du processus de transition politique espagnole, à la démocratie. La coopération scientifique et technique est devenue un instrument utile et flexible pour les dirigeants français dans leurs relations avec leur voisin du Sud. Les préférences établies dans les principaux secteurs de coopération n’étaient pas sans rapport avec la volonté de reconquérir des positions industrielles, même si elles servaient aussi des objectifs plus scientifiques et sociaux.
Histoire(s) de la diplomatie culturelle française
Authors: Rosner Chloé , Telkes-Klein Eva
Published: September 2024

En 1988, dans le contexte du 40 e anniversaire de l’État d’Israël, le Centre de recherche français de Jérusalem (CRFJ) présente, sous la forme d’une exposition itinérante en France et en Israël, l’état des recherches préhistoriques au pays de la Bible. L’exposition offre l’opportunité de souligner l’apport de l’archéologie française au champ préhistorique en Israël. Jean Perrot, l’un des instigateurs de l’exposition, y joue un rôle majeur. En effet, il est l’un des premiers archéologues étrangers à conduire une fouille archéologique en Israël après 1948. Le fondateur du CRFJ s’inscrit dans une tradition préhistorique française au Moyen-Orient portée, entre autres, par des savants diplomates, tel le préhistorien et consul de Jérusalem René Neuville. La description et la contextualisation sur les courte et longue durées des circonstances et des acteurs de cet événement ont pour objectifs de présenter l’archéologie préhistorique comme enjeu et vecteur de la diplomatie culturelle française et, dans ce prolongement, d’interroger son rôle dans le façonnement de la présence scientifique française en Israël.
Histoire(s) de la diplomatie culturelle française
Authors: Drémeaux François
Published: September 2024

Georges Dufaure de la Prade est un consul lettré, poète à ses heures, convaincu que le rayonnement culturel de son pays représente l’avenir de son métier. Il est titulaire du poste de Hong Kong entre 1926 et 1934 et y marque l’entre-deux-guerres par son dynamisme en matière de diplomatie culturelle. Loin des initiatives du Quai d’Orsay dont il s’inspire néanmoins –, loin des circuits organisés à l’étranger pour les artistes et les savants de son époque et, enfin, isolé entre l’Union indochinoise qui développe ses propres politiques culturelles et le Sud de la Chine relativement imperméable à toute forme de diplomatie après 1925, le diplomate français parvient malgré tout à mettre en place une véritable politique culturelle via l’ouverture d’une bibliothèque française, la diffusion de journaux et l’organisation de conférences. Il s’appuie notamment sur les œuvres des missionnaires catholiques français, pourtant réticents à promouvoir la langue française dans le cadre de leurs activités. Il se repose également sur un réseau immatériel, et parfois même désincarné, où les colons britanniques se révèlent les meilleurs avocats de la culture française. Pour Dufaure de la Prade, ces projets représentent bien entendu un outil de rayonnement pour la France, mais il s’agit aussi d’un ciment national pour rapprocher les éléments très différents qui constituent la communauté française (ou francophone) de la colonie. Isolé en territoire britannique, il parvient en quelques années à fédérer un réseau efficace et à susciter de riches initiatives, transformant le profil du poste consulaire.
Éthique, numérique et idéologies
Authors: Audétat Marc
Published: September 2024

Dans ce dialogue, Marc Audétat relève quelques-unes des idéologies attachées à la culture technique du numérique, évoque une éthique de la connaissance forgée dans l’interdisciplinarité, et avance qu’aucune éthique instituée ne saurait remplacer les controverses en tant qu’épreuves démocratiques. Dans la droite file de la sociologie des controverses socio-techniques de Callon, il est convaincu que seules les controverses permettront d’explorer les enjeux, de définir ce qui est acceptable et ce qui ne l’est pas, et de parvenir in fine une mutuelle adaptation des technologies et des usages. Pour lui, l’enseignement supérieur est un lieu qui doit permettre l’expérimentation et nourrir la réflexion sur la numérisation dans la formation et la société en général.
Éthique, numérique et idéologies
Authors: Gobert Thierry , Lavail Ravetllat Isabelle
Published: September 2024

Les médias, avec la démocratisation du numérique, font face aux activités personnelles de natures médiatiques de leurs lecteurs. Médiées par les dispositifs informatisés, ces activités alimentent des biais d’optimisme comme des illusions de contrôle, de performance et d’institutionnalisation de soi. En créant des espaces confusionnels où le statut des informations est difficile à appréhender, les sites de réseautage favorisent des agrégations numériques d’identités singulières. Leurs ancrages sont observables dès le secondaire et le supérieur où les apprenants distinguent difficilement opinion personnelle et information. Ce chapitre fait l’hypothèse de considérer l’éthique et la déontologie comme des outils d’analyse et d’utilisation des technologies de communication.
Antioxidant and anti-inflammatory properties of water kefir microbiota and its bioactive metabolites for health promoting bio-functional products and applications
Authors: Papadopoulou Dimitra , Chrysikopoulou Vasiliki , Rampaouni Aikaterini , Tsoupras Alexandros
Published: September 2024

Inflammation and oxidative stress are implicated in several chronic disorders, while healthy foods and especially fermented beverages and those containing probiotics can provide anti-inflammatory and antioxidant protection against such manifestations and the associated disorders. Water kefir is such a beverage that is rich in both probiotic microbiota and anti-inflammatory bioactives, with an increasing demand as an alternative to a fermented product based on non-dairy matrix with potential health properties. Within this study, the health-promoting properties of the most representative species and strains of microorganisms present in water kefir grains, as well as the health benefits attributed to the bioactive metabolites produced by each individual strain in a series of their cultures, were thoroughly reviewed. Emphasis was given to the antioxidant, antithrombotic, and anti-inflammatory bio-functionalities of both the cultured microorganisms and the bioactive metabolites produced in each case. Moreover, an extensive presentation of the antioxidant and anti-inflammatory health benefits observed from the overall water kefir cultures and classic water kefir beverages obtained were also conducted. Finally, the use of water kefir for the production of several other bio-functional products, including fermented functional foods, supplements, nutraceuticals, nutricosmetics, cosmeceuticals, and cosmetic applications with anti-inflammatory and antioxidant health promoting potential was also thoroughly discussed. Limitations and future perspectives on the use of water kefir, its microorganisms, and their bioactive metabolites are also outlined.
Multi-Criteria Analysis of Technology that Ensure Environmental Safety in Waste Incineration
Authors: Krot Oleksandr , Pukhovoi Oleksandr , Kosenko Nataliia , Levashova Yuliia
Published: September 2024

The article discusses solutions for environmental safety of solid waste incineration technology. Methods of flue gases purification have been evaluated, and two directions of an air purification technology have been considered. The first direction is the precipitation method to remove fly ash, the second direction is the using physic-chemical treatment of toxic substances. Municipal solid waste is a multicomponent mixture, when it is burned, diverse group of substances with different physic-chemical properties produces into the exhaust gases: carbon monoxide, sulfur dioxide, nitrogen oxides, fluorine and chlorine compounds, polychlorinated biphenyls, chlorophenols, polycyclic aromatic hydrocarbons and dioxins. The fly ash that is produced in furnaces contains heavy metal particles. The chemical composition of emissions from waste incineration plants depends on the incineration technology, the morphological composition of waste, and the effective protection against exposure to hazardous chemicals. The authors propose a new approach to the selection of treatment equipment using multi-criteria analysis. Fabric filters, cyclones, scrubbers, electrostatic precipitators, wet cleaning devices were compared to eight criteria. The same criteria were used to compare the efficiency of absorption, adsorption, thermocatalytic treatment, selective catalytic reduction and thermal afterburning.
Computer Modelling of the Process of Separation of Heterogeneous Elements (Spheres)
Authors: Pasternak Viktoriya , Ruban Artem , Horbachenko Yurii , Vavreniuk Sergii
Published: September 2024

This scientific study considers the results of a computer experiment with heterogeneous elements (spheres) that proved to be of decisive importance during the separation process, namely their degree of activity, mobility and falling. It has been found that a detailed analysis of the Liapunov function indices allows to effectively understand and predict the dynamics of complex dynamical systems. The results obtained indicate significant changes in the physical and mechanical parameters of spherical balls under the influence of various factors and the environment. It was found that a certain accumulation of spheres occurs due to an increase in the time for simulation. It was also found that the key characteristics of the bulk mass of spherical elements significantly depend on the moulding process, surface condition and environmental conditions.
Investigation of Diffraction of Electromagnetic Microwaves on Explosive Materials
Authors: Karpov Artem , Kustov Maksym , Basmanov Oleksii , Kulakov Oleg
Published: September 2024

A mathematical model of diffraction of electromagnetic microwaves on explosive materials with different physical and electromagnetic parameters has been developed. The model was constructed by solving Maxwell's equation for two surfaces separating three dielectric materials, in particular air, explosive material, and the substrate on which the explosive material is located. Different types of soil and wood are considered as the substrate material, which meets the conditions for demining large areas of the locality. The results of the numerical calculation showed that 67 % to 92 % of the energy of electromagnetic radiation is concentrated in the explosive material. In this case, trinitrotoluene, which is placed on dry sand, has the highest absorption rates, while wet wood, due to its high coefficient of dielectric permittivity, successfully transmits electromagnetic microwaves through its surface. The obtained models and numerical results are considered as theoretical basis for predicting the effectiveness of remote methods of detection and disposal of explosive materials using electromagnetic microwaves. The obtained results showed that this method will be least effective for explosive materials placed on wet wood. In this case, the lowest reflection coefficient is observed that complicates the search for explosive material and the lowest absorption coefficient that complicates the artificial detonation of explosive material due to its heating under the influence of electromagnetic microwaves.
Comparative Analysis of the Load-Bearing Capacity and Crack Resistance of Reinforced Concrete and Fiber-Reinforced Concrete Airfield Slabs
Authors: Korneieva Iryna , Kostiuk Anatolii I. , Posternak Oleksandr , Surianinov Mykola
Published: September 2024

The results of determining the bearing capacity, deformability and crack resistance of full-size airfield slabs made of reinforced concrete and fiber-reinforced concrete are presented on the basis of experimental studies conducted in laboratory conditions. The slabs were manufactured by Velikodolinsky Reinforced Concrete Plant LLC by order of the Odessa State Academy of Construction and Architecture. The authors have developed a stand for testing slabs using a cantilever loading scheme in accordance with the regulatory documents in force in Ukraine. Two slabs were studied: a serial reinforced concrete airfield slab and the same slab, but with additional steel fiber reinforcement in the amount of 1% of the volume of the concrete mixture. It has been shown that the load-bearing capacity of airfield slabs with additional reinforcement with steel fiber increases significantly; at the same time, deflections are reduced and crack resistance increases. The bearing capacity of airfield slabs with additional dispersed reinforcement increased by 29%. The maximum deflection decreased by 12.7%. The nature of crack formation changed qualitatively: the process began at a higher load, and the final crack opening width decreased significantly. These results indicate the high efficiency of additional reinforcement of airfield slabs with steel fiber.
Deformability and Crack Resistance of Reinforced Concrete and Fiber-Reinforced Concrete Cross-Beam Systems
Authors: Surianinov Mykola , Aksyonova Inna , Perperi Alla , Holovata Zlata
Published: September 2024

The paper presents the results of experimental studies and computer modeling of reinforced concrete and fiber-reinforced concrete cross-beam systems. The authors have made a special stand, the design of which allows for experimental studies of the load-bearing capacity, deformability and crack resistance of cross-beam systems under concentrated and distributed static loads. Samples of reinforced concrete and steel fiber concrete were tested, which are systems consisting of four mutually perpendicular beams of rectangular cross-section. The samples are reinforced in the lower zone with longitudinal reinforcement of class A400C with a diameter of 8 mm. Steel fiber concrete samples have additional dispersed reinforcement with steel fiber with curved ends in an amount of 1% by volume of concrete. A methodology for finite element modeling and calculation of cross-beam systems in ANSYS 17.1 has been developed, and the results obtained experimentally and based on computer modeling have been compared. Tests have shown that dispersed reinforcement leads to an increase in the load-bearing capacity of the system by 1.23 times. In finite element analysis, this increase was 1.18 times. The load-bearing capacity of the reinforced concrete cross-beam system obtained by the finite element method is 13% less than in the experiment, and that of the fiber-reinforced concrete system is 15% less. The number of cracks in a fiber-reinforced concrete system increases significantly (2 times), but the length of the cracks decreases by 2.1 times, and the width of their opening is significantly reduced - from 3 mm to 0,5 mm.
Use of the Boundary Element Method for Solving Problems of Predicting the Regularities of Formation of the Structure of Non-Isometric Components
Authors: Pasternak Viktoriya , Ruban Artem , Chernenko Oleksandr , Nadon Olena
Published: September 2024

In this paper, the boundary element method (BEM) is investigated and computer simulations are conducted to study the patterns of structure formation of non-isometric elements. The modeling of this study covered various aspects, including shape, radius, angle from the stable radius, porosity, average coordination number, simulation time, component falling force, and electrostatic constant. The simulation results provided important information about the properties and interaction of non-isometric components under different conditions. It was found that the obtained parameters can be effectively predicted for further research. It should also be noted that important processes, such as deformation and material behavior, colloidal aspects, dynamic modeling of the movement of components with complex shapes, and features of nanotechnology, were observed in parallel with computer simulation.
The Role of Digitalization During the Pandemic: Small Entrepreneurs in Sri Lanka
Authors: Perera W. A. M. C. , Nimeshi G. K. S. , Ranwala R. S. , Panditharathna K. M.
Published: September 2024

Amid the global devastation caused by the pandemic, digital entrepreneurship has emerged as a focal point in the business landscape. Entrepreneurs faced considerable challenges in sustaining their businesses during the pandemic, leading to significant closures. The surge in digital usage among consumers, prompted by the pandemic, prompted numerous entrepreneurs to transition to digital platforms to sustain their business operations. Therefore, this study aims to investigate the influence of digitalization on small entrepreneurs in Sri Lanka during the pandemic. In this study, a qualitative approach within the framework of social constructivism was utilized by the researcher. The data collection process consisted of conducting semi-structured interviews, each lasting about one hour. The participants comprised eight small entrepreneurs operating in the Western province, selected through a purposive sampling technique. The study's findings unveiled distinct key themes in response to the research question. These themes encompassed eight strategies employed for managing digital businesses, categorized into three main influencing factors: Financial, behavioural, and social media. The results indicated the positive side of digitalization on business operations during the pandemic.
Conceptual Review on Corporate Leadership: Modeling Leadership for C-Suit Level
Authors: Atapattu T.
Published: September 2024

This paper offers a comprehensive examination of leadership theories, types, phases, and levels, highlighting their significant impact on organizational performance and their interconnectivity with organizational activities. By distinguishing between leaders and managers while also recognizing their commonalities, the paper provides a nuanced understanding of these roles within a corporate context.Central to this exploration is the introduction of the ten “I”s of leadership and management: Imagination, Intelligence, Innovation, Initiative, Inspiration, Introduction, Involvement, Informativeness, Instructiveness, and Influence. These features are foundational to both managers and leaders. Building upon these attributes, the paper introduces the ten “E”s, representing an evolved and intensified set of characteristics for chief executives: Envisioning, Excelling, Experimenting, Executing, Energizing, Enlightening, Engaging, Elaborating, Encouraging, and Exerting.The transition from the “I”s to the “E”s illustrates the progression from fundamental leadership and management traits to a more dynamic, executive-level application. This integrated model views leadership and management as complementary, essential for different stages and contexts within an organization. By merging these perspectives, the paper proposes a holistic framework for developing effective chief executives, emphasizing the synergy between leadership and management as critical for organizational success. This innovative approach redefines leadership and management roles, underscoring their importance in forming an impact- executive.
Examining the onset and cessation patterns of active smoking among college students: an interpretative analysis
Authors: Sugiyatmi Tri Astuti , Handoko Lukman , Sentosa Alfrid , Fitriyanti Fitriyanti , Mulyani Sri
Published: September 2024

Smoking is a prevalent global issue, with a significant risk factor for various non-communicable diseases necessitating prolonged, costly, and potentially devastating medical treatments. In addition, infectious diseases such as tuberculosis, COVID-19, and pneumonia in toddlers are often associated with active and passive smoking habits. The correlation is evident across diverse demographics, encompassing individuals of varying ages, professions, and genders. Therefore, this research aimed to explore and describe behavior of active smokers among campus members at various universities, focusing on the initiation, cessation, and influencing factors associated with smoking.A qualitative research design was used with a hermeneutic phenomenological approach, where information was provided by five active smoker informants.These individuals started smoking as teenagers, and the fluctuating patterns were influenced by health concerns or a perceived lack of significance attributed to smoking. However, the periods of abstinence were only temporary due to the pervasive influence of social and environmental factors. The initiation of smoking commonly started from the influence of close acquaintances, such as family members. Meanwhile, the process of quitting encountered numerous obstacles, primarily from potent social factors outweighing personal intentions.The implementation of smoking cessation strategies posed challenges due to the profound impacts of addiction, requiring unwavering determination, comprehensive plans, and diligent efforts.
Contribution to knowledge of the true bugs species (Hemiptera: Heteroptera) in the habitats of the Berati area in Albania
Authors: Halimi Eltjon , Qirinxhi Xhuliana , Paparisto Anila , Subashaj Gerta
Published: September 2024

The present study provides taxonomic information pertaining to the distribution patterns of “true bugs” insects (Hemiptera: Heteroptera), throughout the ecological systems of the Berat region in Albania. Specimens were collected from May to September spanning the years 2018 to 2020. The data were collected from stations that exhibited ideal habitats for this specific order, encompassing regions with ample flora, cultivated fields with crops, elevated hills, and hilly terrains. In the Berat region, our inquiry has successfully identified a total of 38 species belonging to the Heteroptera suborder (Hemiptera order). Furthermore, we have furnished citations for every Heteroptera species that have been identified inside the Berat region. Before our investigation, there was a total of 47 recorded species of “true bugs” in Berat. Significantly, our research uncovers a total of 24 species that have not been previously recognized in the Berat region. As a result, our research significantly expands the documented count of Heteroptera species in Berat to 71.
Loss of Ambulation Due to Calcific Myonecrosis: A Rare but Reversible Complication of Wilson’s Disease
Authors: Vaingankar Abhishek , Garg Divyani , Agarwal Ayush , Radhakrishnan Divya M , Pandit Awadh Kishor , Tripathi Madhavi , Srivastava Achal K
Published: September 2024

We report two cases of established Wilson’s disease (WD) presenting with calcific myonecrosis of the pelvic girdle in association with pelvic fractures. Despite initial improvement with chelation, subacute worsening of ambulation in both led to a consideration of neurologic deterioration on chelation therapy. However, evaluation revealed calcific myonecrosis of the hip joint and adjacent muscles as the cause. Both patients improved with intensive rehabilitation. A review of literature indicates that although osseomuscular complications are reported in WD, calcific myonecrosis is a hitherto unknown entity which, if recognized early, may be reversed, preventing disability and unnecessary change in chelation regimens.