bluuebunny/crossref_metadata_2025 huggingface dataset:
Capteurs multiéléments courants de Foucault en remplacement du ressuage sur matériaux métalliques
Authors:   DCNS CESMAN, Lavie Bastien ,   DCNS CESMAN, Bretonnière Antoine ,   DCNS CESMAN, Graindorge Agnès ,   DCNS CESMAN, Recolin Patrick
Published: August 2023

Dans le cadre de ses contrats, NAVAL GROUP assure le Maintien en Conditions Opérationnelles des sous-marins et bâtiments de surfaces de la Marine Nationale. Les contrôles non destructifs par ressuage, largement mis en oeuvre, participent à démontrer l’intégrité de matériaux métalliques sur coque et structure de ces bâtiments. Néanmoins, ces méthodes nécessitent des précautions particulières afin de limiter leur impact sur l’environnement et la santé des opérateurs (traitement des déchets, port de masques…) et de surcroît présentent de réelles contraintes en termes de mises en oeuvre à bord des bâtiments en phase de maintenance notamment.
A ce titre, plusieurs études sur l’utilisation de capteurs courants de Foucault multiéléments sont menées au sein du département END du CESMAN (Centre d’Expertise des Matériaux et Structures Navales) sur diverses applications avec pour but de se substituer aux méthodes de ressuage.
Un état des lieux de ces différentes études est présenté.
Technique d’imagerie par rayons X en contraste de phase pour du contrôle de matériaux composite
Authors:   University Paris-Saclay, Guitard Laureen ,   University Paris-Saclay, Stolidi Adrien ,   University Paris-Saclay, Jarnac Amélie ,   University Paris-Saclay, Primot Jérôme
Published: August 2023

Le contraste de phase en imagerie par rayons X permet de voir des détails de structures dans les matériaux peu absorbants. Plusieurs techniques existent mais l’interférométrie à décalage multilatérale (IDML) permet une mesure simultanée des gradients de phase selon plusieurs directions par un post-traitement dans le domaine de Fourier. Dans cet article nous présentons des résultats de cette méthode sur deux types de matériaux, des polymères issus de fabrication additive biosourcée et des composites carbonés utilisés dans l’aéronautique. Des outils d’analyse d’image sont mis en oeuvre sur les images obtenues.
Etude expérimentale d'un système de contrôle santé intégré dans un
composite aéronautique pour la détection de défauts par ondes
guidées
Authors:   ONERA, Kergosien Nina ,   ONERA, Gavérina Ludovic ,   University Paris-Saclay, Ribay Guillemette ,   ONERA, Saffar Florence ,   ONERA, Beauchêne Pierre ,   University Paris-Saclay, Mesnil Olivier ,   Ecole centrale de Lyon, Bareille Olivier A
Published: August 2023

L’utilisation des méthodes de contrôle nondestructif
(CND) est essentielle pour assurer
l’intégrité des structures aéronautiques, et les
systèmes de contrôle santé intégré des structures
(SHM) offrent la possibilité de surveiller en temps
réel l’état des structures ou de contrôler des pièces
difficiles d’accès. Les matériaux composites, de plus
en plus utilisés pour la fabrication des aéronefs,
permettent d’intégrer des systèmes SHM directement
à coeur du matériau. L’étude se concentre sur
l’intégration d’un transducteur piézoélectrique (PZT)
à coeur du composite stratifié. L’intégrité du PZT
intégré est vérifiée par radiographie X, et sa capacité
d’émission et de réception des ondes ultrasonores
guidées est vérifiée avec un banc de vibrométrie laser
et des essais pitch-catch. Les résultats montrent que
l'intégration du PZT à coeur du composite est réussie,
et que le système SHM intégré est capable de générer
et détecter des ondes ultrasonores guidées. Les
paramètres optimaux pour réaliser un essai de
détection de défauts sont ensuite déterminés.
L’amplitude des ondes de flexion est favorisée par un
positionnement du PZT intégré près de la surface du
composite. De plus, la fréquence d'excitation optimale
du PZT est déterminée pour permettre une détection
efficace des défauts. Les résultats ouvrent la voie à
l'utilisation de cette méthode pour assurer la
surveillance et la maintenance des structures
aéronautiques de manière fiable et plus efficace.
1.
Solveur numérique générique pour la modélisation de l'influence des
contraintes mécaniques sur la propagation des ondes guidées pour les
applications SHM
Authors:   University Paris-Saclay, Dalmora André ,   University Paris-Saclay, Imperiale Alexandre ,   University Paris-Saclay, Imperiale Sébastien ,   University Paris-Saclay, Moireau Philippe
Published: August 2023

L'évaluation de l'intégrité des structures est un aspect
important des exigences de sécurité dans les applications
industrielles de pointe, comme par exemple l’aéronautique
et le nucléaire. Le Structural Health Monitoring (SHM)
propose d'utiliser des capteurs et des unités de traitement du
signal in situ pour surveiller l’état d’une structure. Les
ondes ultrasonores guidées constituent l'un des moyens de
mettre en oeuvre les systèmes SHM. Les performances
d’une solution SHM sont affectées par les conditions
opérationnelles et en particulier les contraintes mécaniques.
Un exemple typique est celui des charges opérationnelles
induisant de grandes déformations et par conséquent des
contraintes internes qui entraînent des changements dans la
propagation des ondes. Il est donc important que la
modélisation de la propagation des ondes prenne en compte
ces phénomènes pour l’interprétation des signaux, la
démonstration de performance et la conception des
systèmes. L'objectif de notre travail est de proposer un
modèle, et les méthodes numériques correspondantes, pour
la propagation d’ondes élastiques dans un milieu
précontraint. Comme les structures considérées sont
généralement minces, nous utilisons une formulation de
coque pour la mécanique non linéaire pour résoudre le
problème quasi-statique, représentant les effets du
chargement de la structure. Le déplacement calculé est
ensuite transmis à un solveur éléments finis spectraux
(SFEM) pour résoudre le problème élastodynamique
linéarisé dans le domaine temporel. Au-delà de la
modélisation directe nous visons à utiliser ces outils dans
les boucles d'inversion pour la reconstruction de la
contrainte mécanique à partir de mesures ultrasonores. Le
modèle s’applique de la même façon à des configurations
SHM ou à des configurations d’END et il a pour vocation
d’enrichir la plateforme CIVA.
Modelling the Influence of the Tube Support Plate on the Eddy Current Testing of the Steam Generator: Numerical Tools and Experimental Validation
Authors:   University Paris-Saclay, Vigneron Audrey ,   University Paris-Saclay, Demaldent Edouard ,   Commissariat Energie Atomique (CEA), Decitre Jean-Marc ,   Institut de Radioprotection et de Sureté Nucléaire (IRSN), Sollier Thierry
Published: August 2023

Eddy current testing (ECT) of Steam Generator (SG) tubes is part of the maintenance program of Nuclear Power Plants. Tube Support Plates (TSP) are usually only considered as extraneous signals for tube inspection. However, for long-term operation of SGs, there is a safety concern related to the build-up of deposits in the TSPs flow holes. The clogging-up of the TSPs flow holes affect the safe thermal-hydraulic operation of SGs. The deposits come from the feedwater train and are mostly iron oxides (magnetite) with a weak electrical conductivity and magnetic permeability. The ability of ECT probes to detect and characterize TSPs deposits is therefore of great interest. The most common and industrial ECT technique, the bobbin coil, averages the surrounding electromagnetic field over 360°, whereas the geometry of tri-foiled and quadri-foiled TSPs, and thus of clogging, is rather complex and non-axisymmetric, hence motivating the evaluation of the performance of conventional ECT rotating probes used for SGs tubes inspection. Although simulation is a powerful tool to support such a study, it requires dedicated models to be made available to NDT experts, and CEA develops ECT physical models in CIVA for this purpose. In addition to standard fast CIVA modules based on 3D semi-analytical or 2D numerical calculations restricted to canonical or axisymmetric parts, respectively, CEA develops a module dedicated to the simulation of SG tube inspection based on a 3D numerical simulation. This module allows tube deformation such as ovalization, bending or tube expansion. It also allows the addition of external objects such as anti-vibration bars, different geometries of tube support plates and now their clogging by deposits. This model is used to study various influent parameters and to perform benchmarks in the framework of a scientific collaboration between the CEA and the IRSN, related for example to the inspection of the U-bend tubes or of a friction wear under the anti-vibration bars. Here, the specificity of the TSPs and their clogging justifies further investigations between CEA and IRSN to qualify the simulation model before evaluating the influence of material and geometry properties of the deposit as well as the performance of the inspection techniques. We present the main characteristics of the simulation module in CIVA.
XAI for signal analysis of guided wave testing at pipe elbows
Authors:   Japan Power Engineering and Inspection Corporation (JAPEIC), Yamamoto Toshihiro ,   Japan Power Engineering and Inspection Corporation (JAPEIC), Furukawa Takashi ,   Japan Power Engineering and Inspection Corporation (JAPEIC), Nishino Hideo
Published: August 2023

Guided wave testing can provide an efficient screening method for local wall thinning of piping owing to its long inspection range and its ability to inspect pipes with limited access. However, there is a problem in signal interpretation of guided wave testing. While the interpretation of echo signals in guided wave testing is relatively simple for straight pipes, it becomes much more difficult when inspected piping includes an elbow because wave propagation becomes more complicated. This study investigates a signal analysis method that utilizes deep learning to evaluate local wall-thinning at an elbow based on echo signals in guided wave testing using multiple frequencies. To this end, we considered the configuration of deep learning system to analyze echo signals in guided wave testing and utilized Shapley additive explanations (SHAP), one of the explainable AI (XAI) techniques, to provide reasoning for prediction results obtained by deep learning models.
Family Experiences in Caring for People with Mental Disorders
Authors: Putri Dewi Kurnia
Published: August 2023

Family has an important role as the main care provider for people with mental disorders. This study was to explore more deeply about the experience of families in caring for people with severe mental disorders. This research was qualitative research with a phenomenology method. The participants of this study were 3 people with more than 5 years of care for patients. Sampling technique using accidental sampling. The data collection method used in-depth interviews with Colaizzi data analysis techniques. The results obtained 6 themes. First, there was a family response in caring for ODGJ. Second there were changes in family activities. Third, problems experienced by families while caring for ODGJ consist of barriers to families experiencing mental disorders and barriers to seeking treatment from health services. Fourth, how to solved the problems experienced. The fifth theme is family expectations in caring for ODGJ. The last theme was treatment of ODGJ by the family consisting of differences in treatment of ODGJ and reasons for choosing treatment for ODGJ. This research can be used as a basic data for researchers to conduct further research to identify psychological problems experienced by families in caring for ODGJ
Antioxidant Activity of Ethanol Extract of Chinese Petai Peel (Leucaena leucocephala (Lam.) de Wit) Using DPPH (1,1-diphenil-2-picrylhydrazyl) Method
Authors: Rahmayanti Putri , Ridwanto Ridwanto
Published: August 2023

The Chinese petai plant (Leucaena leucocephala (Lam.) de Wit) has been used in various systems of traditional medicine for the treatment of various diseases in humans. The Chinese petai plant (Leucaena leucocephala (Lam.) de Wit) contains antioxidant secondary metabolites that can inhibit oxidation reactions by binding to free radicals and highly reactive molecules. The purpose of this study was to determine the class of chemical compounds contained in the ethanol extract of Chinese petai peel and the antioxidant activity of the ethanol extract of Chinese petai peel (EEKPC). The stages of this research included: collection and processing of simplicia; preparation of the extract by maceration with 70% ethanol; characterization test of simplicia powder; phytochemical screening of ethanol extract of petai cina; antioxidant activity test of EEKPC using the DPPH (1,1-diphenyl-2-pikrilhidrazyl) free radical scavenging method using UV-Vis spectrophotometry at a wavelength of 516 nm. The results of the phytochemical screening examination of Chinese Petai Peel Ethanol Extract (EEKPC) contained alkaloids, flavonoids, saponins, tannins, and triterpenoids. The results of measuring the antioxidant activity of EEKPC showed strength in the "strong" category with an IC50 value of 91.0189 μg/ml.
Society of Dermatology Physician Assistants Summer 2023 Digital Abstracts
Authors:   Society of Dermatology Physician Assistants
Published: August 2023

SDPA Presents Summer 2023 Digital Abstracts from SDPA Annual Summer Dermatology Conference June 22-25, 2023, Westin Copley Place, Boston, Massachusetts
Educación aumentada : desafíos de la educación en la era de la inteligencia artificial
Authors: Bellomo Santiago Tomás
Published: August 2023

La educación transita tiempos de ebullición. Las plataformas adaptativas, la inteligencia artificial generativa, los simuladores de realidad aumentada y los modelos predictivos, entre otras muchas innovaciones, ponen en crisis a escuelas, institutos superiores y universidades. Una vez más, aflora la pregunta sobre el sentido de la educación tradicional. Los más progresistas auguran el fin de la docencia tal como la conocemos, o su reconversión según el formato del instructor para el uso de plataformas y dispositivos digitales. En el otro extremo, voces más conservadoras se resisten a la transformación digital profunda y promueven la asimilación de novedades tecnológicas para ajustarlas a la liturgia educativa tradicional. Este libro propone superar esta dicotomía estéril.Describe un modelo de educación aumentada basado en la hibridación no sustitutiva entre tecnología y docencia; un modelo que potencia lo irremplazable de la educación personalizada mediante el efecto amplificador de las innovaciones tecnológicas.
Asymptotic formulas for q-regularly varying solutions of half-linear q-difference equations
Authors: Katarina S. Djordjevic Katarina S.
Published: August 2023

This article studies the asymptotic behavior of positive solutions of the q-difference half-linear equation $$ D_q(p(t)\Phi(D_q(x(t)))) + r(t)\Phi(x(qt))=0, \quad t \in q^{\mathbb{N}_0}:=\{q^n : n \in \mathbb{N}_0\}, $$ where \(q>1\), \(\Phi(x)=|x|^{\alpha}\operatorname{sgn} x\), \(\alpha >0\), \(p:q^{\mathbb{N}_0} \to (0,\infty)\), \(r: q^{\mathbb{N}_0} \to \mathbb{R}\), in the framework of q-regular variation. In particular, if \(r\) is eventually of one sign, \(p\) and \(|r|\) are q-regularly varying functions such that \(t^{\alpha+1}r(t)/p(t) \to 0\), as \(t \to \infty\), we obtain asymptotic formulas for the \(q\)-regularly varying solutions. Moreover, when \(p(t)\equiv 1\) and \(r\) is an eventually positive or eventually negative function, we obtain an asymptotic formula of a q-slowly varying solution. Using generalized regularly varying sequences, we apply these results to the half-linear difference equation case. At the end, we illustrate the obtained results with examples.

For more information see https://ejde.math.txstate.edu/Volumes/2021/50/abstr.html
Age-dependent branching processes and applications to the Luria-Delbruck experiment
Authors: Montgomery-Smith Stephen J. , Oveys Hesam
Published: August 2023

Microbial populations adapt to their environment by acquiring advantageous mutations, but in the early twentieth century, questions about how these organisms acquire mutations arose. The experiment of Salvador Luria and Max Delbrück that won them a Nobel Prize in 1969 confirmed that mutations don't occur out of necessity, but instead can occur many generations before there is a selective advantage, and thus organisms follow Darwinian evolution instead of Lamarckian. Since then, new areas of research involving microbial evolution have spawned as a result of their experiment. Determining the mutation rate of a cell is one such area. Probability distributions that determine the number of mutants in a large population have been derived by Lea, Coulson, and Haldane. However, not much work has been done when time of cell division is dependent on the cell age, and even less so when cell division is asymmetric, which is the case in most microbial populations. Using probability generating function methods, we rigorously construct a probability distribution for the cell population size given a life-span distribution for both mother and daughter cells, and then determine its asymptotic growth rate. We use this to construct a probability distribution for the number of mutants in a large cell population, which can be used with likelihood methods to estimate the cell mutation rate.

For more information see https://ejde.math.txstate.edu/Volumes/2021/56/abstr.html
elementary method for obtaining general solutions to systems of ordinary differential equations
Authors: Rodrigo Marianito R.
Published: August 2023

An analytical method is proposed for finding the general solution of a system of ordinary differential equations (ODEs). The general solution is expressed as a series which in some cases can be summed to give an expression in closed form. A sufficient condition for the series to converge is derived. Illustrative examples are given for scalar first-order ODEs (Riccati, Abel, homogeneous, Bernoulli, linear, separable) and for higher order ODEs (Airy, linear oscillator, Lienard, van der Pol). The method relies only on a calculus background.

For more information see https://ejde.math.txstate.edu/Volumes/2021/58/abstr.html
T-coercivity for the asymptotic analysis of scalar problems with sign-changing coefficients in thin periodic domains
Authors: Bunoiu Renata , Karim Karim , Timofte Claudia
Published: August 2023

We study a scalar problem in thin periodic composite media formed by two materials, a classical one and a metamaterial (also known as negative material). By applying T-coercivity methods and homogenization techniques specific to the thin periodic domains under consideration, for two geometric settings, we derive the homogenized limit problems, which both exhibit dimension-reduction effects.

For more information see https://ejde.math.txstate.edu/Volumes/2021/59/abstr.html
Conselhos participativos como espaços de governança de políticas urbanas
Authors: Froener Carla , Lima Luciana Leite
Published: August 2023

O presente artigo possui como objetivo investigar as possíveis relações entre a trajetória do desenvolvimento de políticas urbanas no Brasil e a concretização de um novo modelo de governança de políticas urbanas, baseada na atuação dos conselhos participativos. A técnica de pesquisa escolhida foi a documentação indireta que envolve a realização de pesquisas documentais e bibliográficas. A pesquisa documental concentrou-se em documentos oficiais e jurídicos. As fontes bibliográficas incluíram pesquisas acadêmicas realizadas nas áreas de políticas urbanas, governança e conselhos participativos. Como conclusões parciais, verificou-se a difusão do modelo de governança de políticas públicas no Brasil, na forma dos conselhos participativos. No entanto, a inserção da política urbana neste cenário é desafiadora, devido a trajetória tortuosa que esta política enfrenta na sua implementação. A criação de um sistema nacional de conselhos de políticas urbanas, dotado de um fundo específico, pode ser uma alternativa interessante para incrementar a governança na área.
The judge of the future
Authors: Barbosa Mafalda Miranda
Published: August 2023

In this paper the complex relationship between law and information technologies is explored, focusing on the challenges posed by the widespread use of technology and the electronic processing of data. Jurists are confronted with the need to re-examine traditional legal concepts in various domains due to the transformative impact of information technologies. Lawyers and judges must also grapple with the implications of utilizing sophisticated tools, including artificial intelligence and autonomous systems, which require careful consideration of their effects on the evolution of the law. Of particular concern is the potential for algorithms to function as judges, making legal decisions based on autonomous algorithmic systems, albeit under human supervision. This study examines this possibility in light of three key functions: information collection and processing, risk assessment, and decision-making in legally relevant cases. The analysis aims to shed light on the (im)possibility of algorithmic judging while considering the broader implications of these technological advancements.
Conceptual model of key predictors and consequences of customer satisfaction
Authors: Đurić Nađa
Published: August 2023

Satisfied customers represent an important resource for a company. So far research has shown that customer satisfaction has an impact on the return on investment, the growth of the company's market share, and shareholder value. The importance of research on customer satisfaction is seen in the fact that it most often leads to loyalty, which represents an important prerequisite to a company's long-term profitability. In line with the significance of these two concepts in companies' success, the topics of this research are the determinants of customer satisfaction and the relationship between satisfaction and loyalty. The goal of the research is the identification of key variables and the measurement of their respective impact on customer satisfaction. An adapted expectancy-disconfirmation model was used for the identification of key determinants. Satisfaction was viewed as a function of customer expectations and perceived product performance, and an additional component, the company's image. This research was carried out on the territory of the Republic of Serbia through an online survey. The obtained conclusions can help companies in Serbia to better the quality of provided services, with the end goal being achieving an agreeable level of customer satisfaction and loyalty, and with it, higher profitability.
The impact of inflation and interest rates on real estate indices in the US and EU
Authors: Cicmil Danica
Published: August 2023

This paper investigates the relationship between real estate indices, inflation and interest rates in both Europe and the USA. The main objective is to examine the impact of inflation and interest rates on the respective real estate indices and test specific hypotheses. The study utilizes cointegration analysis to assess the long-term equilibrium and the speed of adjustment between the variables. The analysis reveals the presence of cointegrating relationships in both regions, indicating a long-term equilibrium between the variables The findings support the hypothesis that inflation has a significant and positive impact on the real estate indices in both regions. However, the hypothesis stating a significant and negative impact of interest rates on the indices is not supported.
Occupational stress indicators in the hotel industry: the case of housekeeping and front office employees
Authors: Blešić Ivana , Tepavčević Jelena , Bradić Milan
Published: August 2023

The hospitality sector is plagued by a serious problem called employees’ stress, which is a very important issue for both employers and employees. Although addressing and reducing stress is a noble goal, the nature and indicators of employees’ stress in the hospitality industry are not fully understood. For that reason, the aim of the paper is to determine which of the above factors indicates the occurrence of stress among hotel housekeeping and front office staff. The research was conducted in hotels in the Republic of Serbia, among front office and housekeeping employees. A total of 175 valid questionnaires were collected. The obtained results showed that three analyzed occupational stress indicators (Factors intrinsic to the job, Home, and work interface, and Organizational structure and climate) significantly influence job stress. On the other hand, there was no found significant influence of Management roles, Relationships with other people, and Career and achievement on job stress.
Traditional food products and region recognition: Importance of geographical indication of origin in case of branding the tourist region of Western Serbia
Authors: Obradović Maja , Panić Aleksa , Kostić Marija , Brdar Ivana , Radović Nikica
Published: August 2023

The challenge of tourists' expectations is predicated on more authentic and traditional experiences as modern tourism grows. Local traditional food, which comprises autochthonous goods that have been consumed in that area since ancient times, is one of the experiences that such tourists are looking for. European legislation establishes geographical indications of origin to ensure that the items are authentic for that destination. This study aimed to evaluate respondents' perceptions of the authenticity of locally produced goods from Western Serbia's tourist region. Additionally, consideration was given to the significance of the geographic origin label in the Republic of Serbia, particularly in light of tourists' consumption and purchase of regionally authentic goods. A total of 504 respondents participated in the study. The findings indicate that traditional foods from this area are well-known to tourists, and guest households that serve these foods will have a competitive advantage.
Application of the VAR model in examining the determinants of returns of selected cryptocurrencies
Authors: Stanković Sunčica , Đorđević Bojan , Milojević Nataša
Published: August 2023

The increase in the value of cryptocurrencies, market capitalization, and volume of trading on crypto exchanges resulted in a significant increase in the interest of researchers in this decentralized financial system. The two most popular cryptocurrencies today - bitcoin and ethereum - have captured the greatest attention of researchers. Given that cryptocurrency trading is similar to stock trading, the author's assumption is that their returns are determined by the price of gold and the volatility index – VIX, representing this paper's research hypothesis. Testing through vector autoregression (VAR) models, Granger causality tests, and impulse response function (IRF) shows that gold returns do not impact, unlike the VIX volatility index and Ethereum, indicating a significant relationship between cryptocurrencies bitcoin and US stock markets. On the other hand, Bitcoin returns and the volatility index cause ethereum returns, while gold returns do not.
The analysis of brain circulation of health care professionals in Serbia, Croatia and Slovenia
Authors: Vasiljević Blagojević Milica , Krasulja Nevena , Ilić Dejan , Milošević Dragan
Published: August 2023

The deficiency of medical care professionals is a very popular economic and social problem that's becoming an important issue for a lot of countries. This paper aims to give an overall review and analysis of research results about the existence and reasons for migration (circulation) of highly educated healthcare personnel in Serbia, Croatia and Slovenia. The research that has been done in June 2022 included 604 students from three higher education institutions in Serbia, Croatia and Slovenia. The results, of which we came, showed that brain circulation happens mostly from economically weaker countries to the more developed ones, while better life standards, an opportunity for better studies and getting more practical skills are the most frequent motives for healthcare students.
The influence of social networks on consumer loyalty in crisis periods
Authors: Trajković Slaviša , Jakšić Krsto , Deletić Milan , Deletić Velimir
Published: August 2023

In the changing market conditions characterized by intense competition, consumer loyalty is a key success factor. The aim of the research presented in this paper is to determine how social networks in periods of crisis change or affect the building of consumer loyalty, in terms of interactive communication aimed at recognizing and integrating consumer needs into the business offer of companies. The empirical research was used in the paper, based on appropriate research methods and techniques. For the purposes of the research primary data was collected using the survey method and the questionnaire technique. Based on the relevant measurement scales in the domain of social networks and consumer loyalty, the selected findings correspond to the current conditions of crisis changes, especially in the period of the COVID-19 pandemic. Statements used in the research process were taken and adapted from similar studies by the authors. The research process was carried out electronically, as the questionnaire was created in electronic form and distributed to respondents through social and communication media. During data processing, statistical methods such as descriptive statistical analysis, internal consistency test, correlation, and regression were used. The results of the analysis show that consumers expressed loyalty to companies using social networks in periods of changes caused by crisis, particularly during the virus pandemic.
The importance of financial incentives for healthcare workers during the COVID-19 pandemic
Authors: Gavrić Gordana , Vesić Tamara , Novaković Božić Nataša
Published: August 2023

One of the basic tasks of HR managers is to provide the organization with people who can do the job efficiently and effectively. Since during the COVID-19pandemic, the most important thing was to preserve the health of the population, the key role in bringing the pandemic under control was played by healthcare workers, which is why it was very important to find techniques to motivate them. This paper aims to assess the degree of satisfaction of healthcare workers with financial compensation during the COVID-19 pandemic, compared to compensation under normal working conditions. The results indicate that financial compensation is the dominant factor in motivating work during the pandemic, that they believe that they are not paid enough for their work, and that the minimum wage increase they deserve should be in the amount of the COVID supplement payment. As even more than half of the respondents would not accept working in a COVID hospital without financial incentive, this paper gains special importance as a warning for all decision makers.
Primena Hi kvadrat neparametarskog testa u elektroenergetici u funkciji analiziranja izveštaja
Authors: Bogićević Zorica , Marković Nenad
Published: August 2023

U radu je prikazana primena neparametarskog Hi kvadrat testa na raspodelu obeležja X u elektroenergetici, kao nova metoda za analiziranje SCADA izveštaja. To je statistička metoda za analiziranje izveštaja različitog tipa, njihovo organizovanje, sažeto prikazivanje i izvlačenje zaključaka na osnovu informacija koje sadrže. U konkretnom slučaju, u radu je testirano stanje energetskog transformatora TR2, uz pripadajuća polja: C03-trafo polje TRP2 400 kV i D18-trafo polje TRP2 220 kV u trafostanici Obrenovac.
Method for determining the forces acting on a axle box designed for the installation of an adapter bearing
Authors: Atmadzhova Dobrinka , Ralev Vanio
Published: August 2023

The installation of adapter bearings (cassette type) provides new opportunities to achieve longer maintenance intervals and to improve performance and safety. In the developed methodologies for calculating the forces acting on a axle box unit in European and state standards, dependencies are defined for axle boxes with short cylindrical rollers and conical or cassette type bearings where the transmission of the vertical load between the axle box and the bearings is on a cylindrical surface. In the contact area of a segment, in addition to the standard static, dynamic, centrifugal and inertial forces of the axle box, additional forces also act. Overloading occurs when the axle box has become detached from the bearing by lifting off of it. Under these conditions, the transmission of forces between the axle box and the bearing takes place not through the normal tight contact along a segment of 120º, but through the edge of the axle box shell. In this publication, a method is proposed for determining the forces in an axle box designed for the installation of an adapter bearing.
Neurosociology: Intrerdisciplinary field of science
Authors: Leposavić Ivana , Veljković Jasna
Published: August 2023

Neurosociology is a relatively new interdisciplinary field of science. It is a discipline that lies on the borders between sociology, social psychology, biology and neurosciences. This scientific field offers an opportunity for better understanding interactions between brain and interpersonal functioning by analyzing the influence of social factors on creating brain organization and its functions.
Non-realistic elements in the Russia / "Collective West" conflict
Authors: Sunami Artem
Published: August 2023

The article examines the Russia / "Collective West" conflict since Vladimir Putin's Munich speech at 2007 to last Ukrainian crisis. Using classic conflict theories expounded by L. Coser, R. Dahrendorf, K. Boulding, L. Kriesberg, the author analyzes the tendency of the gradual prevalence of the conflict of values over the conflict of interests in Russia/"Collective West" relations. It opines that the irrationalization of the conflict makes non-realistic improvements to conflict that loses its previous ontological features, attachment to a geographical, cultural or political location, and the goals that it manifests acquire an existential character. The author concludes that only the return of the conflict to the basic state of the conflict of interests is able to connect peace initiatives with the real interests of all parties again.
Geopolitics as the elder sister of geoeconomics and the transformation of the world system in the 21st century
Authors: Cvetićanin Neven , Maksimović Marijana
Published: August 2023

The subject of the undertaken research is the analysis of geopolitical and geoeconomic changes in the multipolar world of the 21st century, which lead to the transformation of the world system. There is an ongoing evolution of the geostrategic position of the United States of America (USA), the rise of China, as well as the division of the world that occurred with the offensive activities of Russia and the expansion of other countries such as India, Brazil, and Saudi Arabia. The goal of the research is to emphasize, in addition to the basic geopolitical component, the importance of the geoeconomic component, as derived, in international relations, which is often less clearly visible in the background of many international conflicts and alliances. The main thesis of the paper is that dominant geostrategic powers such as the USA, China and Russia follow their long-term geopolitical and geoeconomic interests and goals putting them into conflicting or allied relations, which is again responsible for the configuration of power and the relationship between the great powers in the arena of world politics. The paper applies a multidisciplinary combined method that is based on political and economic sciences, and sometimes studies broader geopolitical processes or focuses on a narrower geoeconomic analysis of individual parameters.
Message patterns of online gender-based humor discriminatory practices biases stereotyping and disempowering tools through discourse analysis
Authors: Chavez Jason V. , Lamorinas Daisy D. , Ceneciro Collin C.
Published: August 2023

This study explored the message patterns of gender-based humor in social media in different layers of discriminatory practices against certain genders, language biases against women and LGBT including elements of stereotyping and disempowering tools against the personal images of subordinate genders. This research used discourse analysis based on the mapped-out online posts and comments of the fourteen (14) profiles of individuals and extracted their important testimonies based on the collected online gender-based humor to elicit the message patterns. Gender-based humor online enhanced the language use in creating messages that express biases towards women and the LGBT. Humor has both implicit and explicit messages that stereotype women and LGBT as weak and slow. These senses of humor also disempower the women and LGBT's personal images as groups who are easily dominated or are cowards. As asserted, gender-based humor posed a threat to community as it highlights hierarchy-enhancing social roles. Gender-based humor in social media appeared as a mainstreamed form of social differentiation.
Chinese culture in Portuguese oral classes of the Guangdong-Hong Kong-Macao Greater Bay Area: An intercultural perspective
Authors: Sui Jiajia
Published: August 2023

Starting from the intercultural perspective, this analysis aims at analyzing the role of cultures in Portuguese, Chinese culture and the interaction between them in oral classes of PFL (Portuguese as foreign language) from higher education institutions based in the Guangdong-Hong Kong-Macao Greater Bay Area. This study is based on quantitative research, through a questionnaire survey among 219 students. It is concluded that Portuguese language cultures have an unquestionable role in PFL oral classes. However, an imbalance has been observed in the introduction of different cultural variants of the Portuguese language in most oral classes, where Portuguese culture is mainly highlighted and other Portuguese language cultures are ignored. On the other hand, it was found that Chinese culture and interculturality are integrated in these classes, but in a small percentage. At the same time, there is a little space for Chinese culture and intercultural encounters in PFL oral classes.
A la huella, a la huella
Authors: Merino Graciela , Ramirez Stella , Roncoroni Matilde , Wrtoniak Elisa , González Sara , Resa Nora
Published: August 2023

En este artículo se presenta una propuesta metodológica desde la enseñanza no formal en apoyo a la educación formal, destinada a los niños de Nivel Inicial. "A la huella a la huella" constituye una experiencia lúdica e interdisciplinaria donde se integra, desde un eje social-la identidad- a las ciencias naturales con el cuerpo y la expresión estética para iniciar una aproximación a los vínculos con uno mismo, con el otro y con el medio que nos rodea. A través de estrategias didácticas innovadoras ­juegos exploratorios, canciones, movimientos corporales­ los niños establecen relaciones más allá de su propio cuerpo logrando avances significativos en su sistema de pensamiento.
Contaminación ambiental producida por plásticos
Authors: Nappa de Ferrero Nora
Published: August 2023

Las diferentes formas de eliminación de residuos plásticos. constituyen un importante problema para nuestro medio ambiente. Una gran cantidad de petróleo se utiliza como materia prima en la fabricación de los plásticos y, la eliminación de los mismos, colabora en la producción de lluvia ácida e incrementa el efecto invernadero. En este artículo se aborda la problemática de la eliminación de los residuos plásticos de la basura domiciliaria, qué tratamientos puede dárseles a esos desechos y cómo se ve afectado el medio ambiente, a la vez que se proponen algunas actividades didácticas que pueden resultar útiles a los profesores de Ciencias Naturales de la EGB 3 y Polimodal.
Impacto de la Olimpíada Argentina de Biología en la enseñanza de las Ciencias Biológicas
Authors: Ortiz María Isabel , Priotto José , Mori Gladys
Published: August 2023

Impacto de la Olimpíada Argentina de Biología en la enseñanza de las Ciencias Biológicas
Trayectoria y prospectiva de una publicación periódica
Authors: Valeiras Nora , De Longhi Ana Lía
Published: August 2023

La Asociación de Docentes en Ciencias Biológicas de la Argentina (ADBiA) fue creada en 1993 con la misión de contribuir a la profesionalización de los docentes de Biologia en los diferentes niveles del sistema educativo. Como parte de sus objetivos se aspira a desarrollar y ejecutar acciones para el mejoramiento de la enseñanza de las ciencias. En este marco, surge en el año 1997 la Revista de  Educación en Biologia (REB) con la meta de producir una pubiicación cientifica de calidad, con articulos de nivel y brindar un espacio para los trabajos en esta area de conocimienlo.
Desafíos de una nueva gestión
Authors: ADBiA Revista
Published: August 2023

Desafíos de una nueva gestión
Las concepciones de los alumnos respecto a las problemáticas ambientales
Authors: García María Elena , Rivarosa Alcira Susana
Published: August 2023

Este trabajo presenta una investigación educativa realizada con jóvenes que se encuentran cursando el Ciclo de Especialización (entre 15 y 18 años) en la ciudad de Río Cuarto, Córdoba. En él se indagan las concepciones acerca del ambiente y problemáticas ambientales que sustentan, permitiendo identificar contrastes entre grupos de diferente capital cultural y educativo. Se elaboró una categorización para identificar las concepciones con encuestas e imágenes fotográficas y se generó además un lugar de diálogo con los jóvenes. Los resultados  muestran que el abordaje de problemáticas ambientales locales y situadas favorece una mejor significación cognitiva y un mayor compromiso social en su resolución.
CAICYT y las publicaciones científicas argentinas
Authors: Flores Ana María
Published: August 2023

El Centro Argentino de Información Científica y Tecnológica (CAICYT) es un centro de servicios especializados del Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) que gerencia programas y proyectos a nivel nacional e internacional y participa, desde su Área de Publicaciones Científicas, en sistemas como ISSN (International Standard Serial Number), Latindex y SciELO (Scientific Electronic Library Online) y es secretaría del Núcleo Básico de Revistas Científicas Argentinas del CONICET. Se presenta aquí la importancia que estos proyectos tienen para la visibilidad de la producción científica nacional que se publica en las revistas argentinas.
Reflexiones sobre la formación inicial de los profesores de biología
Authors: Meinardi Elsa
Published: August 2023

En este trabajo se presentan una serie de reflexiones en relación con la formación de los profesores de biología, tendientes a contribuir son su desarrollo profesional y personal.Proponemos que el conocimiento de aquellos que se considera pertinente para la formación de los jóvenes debería ser usado para retroalimentar no sólo el currículo y las prácticas de los profesores, sino también las de los formadores de formadores.
Una mirada didáctica frente a una problemática ambiental: el ruido en la ciudad
Authors: Ramírez Stella , González Sara , Roncoroni Matilde , Merino Graciela
Published: August 2023

La presente investigación hace referencia a una experiencia de formación docente continua en el área de las Ciencias Naturales, centrada en el estudio de la transformación del ambiente en una zona urbana y que afecta directamente a sus componentes. Se explicita un enfoque didáctico orientado en el análisis de ideas previas vinculadas a la problemática de comunicación sonora, su reestructuración en función del planteo y resolución de cuestiones, y la transferencia de soluciones a la comunidad.
Actividades centradas en obstáculos para enseñar el modelo de evolución por selección natural
Authors: González Galli Leonardo , Revel Chion Andrea , Meinardi Elsa
Published: August 2023

En este artículo presentamos cuatro actividades para enseñar el modelo de evolución por selección natural, dirigidas a estudiantes de nivel medio. Nuestro objetivo es desestabilizar el pensamiento finalista que podría funcionar como un obstáculo para la comprensión del modelo. La implementación de esta unidad didáctica ha mostrado que se trata de un instrumento eficaz para que los estudiantes expliciten y cuestionen sus representaciones en relación con el tema.
El profesor investigador de ciencias: una perspectiva de profesionalidad
Authors: Gonzalez Eduardo
Published: August 2023

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El ojo y la visión: una propuesta para el maestro de educación primaria
Authors: Fernández-Galiano T. , Zugasti P. , Vivas E.
Published: August 2023

En este artículo presentamos una serie de actividades didácticas sencillas encaminadas a facilitar aprendizajes significativos en los nulos del tercer ciclo de educación primaria en relación con la anatomía y el funcionamiento del ojo. Para la realización de dichas actividades se precisa de material nmy sencillo y de bajo coste. Proponemos que los alumnos participen de fornas activa en el proceso de desarrollo de las mismas, tanto a nivel motriz como intelectual, y que se fomente el diálogo y la discusión en clase
Ecología y Conservación del Parimonio Vegetal de la Provincia
Authors: Roque Ferrero AM. Soledad
Published: August 2023

Entrevista con el Dr. en Ciencias Biológicas, Marcelo Cabido
Lombrices de tierra: metodología para el estudio e identificación
Authors: Mischi Catalina , Herrera Julio
Published: August 2023

Se ofrecen en este trabajo métodos de recolección, preparación y estudio de los oligoquetos terrestres,además se da una clave para la identificación y determinación de las especies más comunes de lombrices de tierra.
Una propuesta para la enseñanza de la biología: programa de capacitación para profesores de la red pública
Authors: Demonte A. , Gattás E.A.L.
Published: August 2023

La enseñanza secundaria brasileña se encuentra en situación crítica, desfasada en relación al desarrollo industrial y a la modernización tecnológica que atraviesa el país. La falta de condiciones de trabajo, de re cursos en las escuelas, de reconocimiento y estímulo a la labor de enseñar hacen que el profesor esté lejos de ser un profesional actualizado, y que el alumno sea un aprendiz aburrido en los procesos de instrucción. En tal contexto, este programa (entre otros objetivos) busca actualizar al profesor en el contenido del programa de la asignatura Biología, dándole instrumentos de manera práctica para motivar la comprensión de conceptos de forma integrada y compatible con la realidad y nivel intelectual del alumno.
La descripción de creencias didácticas explícitas de una docente de ciencias empleando inventarios como parte de un estudio etnográfico. Comparación con las creencias implícitas
Authors: Peme Carmen , Baquero María Elena
Published: August 2023

Este trabajo forma parte de un Proyecto de Investigación basado en el modelo mediacional centrado en el profesor, que intenta desarrollar metodologías, procedimientos e instrumentos para estudiar creencias epistemológicas y didácticas explícitas e implícitas de docentes de Ciencias del Nivel Medio (en formación y en ejercicio). El trabajo que se presenta tiene los siguientes objetivos: Describir y caracterizar (como parte de la metodología etnográfica y utilizando dos Inventarios) algunas creencias didácticas explícitas de una docente de Ciencia del Nivel Medio (tomada como caso) y compararlas con las implícitas, obtenidas durante el mismo estudio etnográfico (empleando como marco interpretativo del nivel explícito y del implícito la misma teoría sustantiva respecto a dichas creencias didácticas). Se describe la metodología utilizada en la investigación etnográfica centrada en el tema (creencias epistemológicas y didácticas). Las creencias didácticas explicitas de la docente caso se estudiaron con el Inventario de Creencias Didácticas y Epistemológicas ([CDE), elaborado por el equipo de trabajo y con el Inventario de Creencias Pedagógicas y Científicas (INPECIP), desarrollado por Porlán Ariza (1989). Se analizaron las respuestas a ambos Inventarios empleando la teoría sustantiva usada para desarrollar el JCDE. Se describieron y caracterizaron algunas creencias explicitas didácticas de la profesora. Se las comparó con las creencias implícitas (inferidas de otras fuentes de datos y analizadas con el mismo marco teórico).
De la utopía a los hechos
Authors: Ramos Rodolfo , Bárbara Irma , Rodríguez Manuela
Published: August 2023

De la utopía a los hechos