bluuebunny/crossref_metadata_2025 huggingface dataset:
Enjeux théoriques et pratiques de l’encadrement syndical des migrants
Authors: Pujals i Lladó Marc
Published: November 2022

Les vagues migratoires espagnoles vers la France deviennent un phénomène massif entre la fin des années 1950 et la première moitié des années 1970. La présence en France d’une importante colonie d’exilés politiques et de syndicats démocratiques inquiète les agents de la dictature franquiste qui cherchent à surveiller et contrôler les nouveaux arrivants, à savoir, des chômeurs et des jeunes travailleurs précaires – hommes comme femmes – pour la plupart d’entre eux. Cet article se concentre sur les dynamiques de politisation et de mobilisation sociale et professionnelle mises en place par ces migrants dits « économiques » à travers leurs interactions avec le monde syndical français et plus spécifiquement avec la CGT et la CFDT.
Les ego-documents comme sources pour l’histoire. Leur utilisation pour comprendre l’exil de 1939
Authors: Alted Vigil Alicia , Taillot Allison
Published: November 2022

Cet article vise à présenter l’origine du terme ego-document et ses caractéristiques. Il envisage également les problèmes que peut supposer le recours aux ego-documents comme sources pour une recherche en histoire. Au gré de considérations théoriques et méthodologiques, il revient sur l’usage fait par l’autrice de ce type de document dans ses nombreux travaux sur l’exil républicain espagnol de 1939, travaux dans lesquels les ego-documents ont constitué une source alternative ou sont venus compléter d’autres sources.
Sons et images de guerre : une relation incongrue ?
Authors: Tahon Benoit
Published: November 2022

En raison de l’usage massif d’armes puissantes et destructrices engendrant chez les combattants des traumatismes d’ampleur jusque-là inégalée, la Première Guerre mondiale a imposé aux artistes la nécessité de moderniser les formes habituelles de la représentation de la bataille. Comment, dès lors, traduire visuellement les multiples sonorités de l’univers combattant ? L’article se propose de reconsidérer la relation « incongrue » de l’image et du son à travers les deux modes de représentation que sont la peinture et la photographie.
Élie Kagan, photographe indépendant, 1960-1990
Authors: Manceron Gilles
Published: November 2022

Un bel ouvrage éponyme garde trace de l’exposition présentée du 19 janvier au 7 mai 2022 à La contemporaine, « Élie Kagan, photographe indépendant 1960-1990 », sous la direction de ses commissaires, Cyril Burté, conservateur, responsable des archives audiovisuelles à La contemporaine, et Audrey Leblanc, historienne de la photographie, chercheuse associée à l’EHESS et à l’INA. Ce livre constitue la première approche globale de l’œuvre de ce « photographe d’archive et d’histoire ».
Rouben, Le défi de l’indépendance. Arménie (1919-1920) , préface de Taline Ter Minassian et Anahide Ter Minassian, traduction de Waïk Ter Minassian, postface de Robert Ilbert, Éditions Thaddée, 2021, 217 p., 25 €
Authors: Cœuré Sophie
Published: November 2022

Cet article propose un compte rendu de l’ouvrage de Minas Ter Minassian, alias Rouben, Le défi de l’indépendance. Arménie (1919-1920) (Thaddée, 2021), qui fut l’un des principaux dirigeants de l’éphémère République d’Arménie, puis du parti « Dachnak » en exil à Paris.
L’intermittence du spectacle, un financement paradoxal de la culture ?
Authors: Sigalo Santos Luc
Published: November 2022

Les règles d’indemnisation du chômage des artistes et techniciens intermittents du spectacle sont régulièrement présentées dans les médias comme un « privilège » national et sectoriel. Par-delà les clichés, l’intermittence permet surtout de compenser la discontinuité de l’emploi et des revenus dans un domaine où le travail par projets est la norme. Dans le même temps, son fonctionnement met à l’épreuve les logiques bureaucratiques standardisées d’administrations telles que Pôle emploi.
Jeux vidéo : d’une industrie technique à une industrie culturelle
Authors: Benghozi Pierre-Jean , Chantepie Philippe
Published: November 2022

Dernière-née des industries culturelles, d’emblée numérique, l’industrie du jeu vidéo s’est cependant construite en empruntant aux modèles plus classiques des industries culturelles, mais en s’en différenciant par quelques traits essentiels. À ce titre, le jeu vidéo est pionnier d’évolutions générales qui touchent désormais l’ensemble du secteur des contenus. Pour autant, le secteur du jeu vidéo n’a pas été épargné par les mutations du numérique. Elles ont conduit le secteur à des évolutions fortes de ses modèles économiques et de son écosystème.
La K-pop : des formules inédites couronnées de succès
Authors: Parc Jimmyn , Messerlin Patrick
Published: November 2022

On affirme souvent que la culture doit être protégée et préservée, et qu’il doit en être de même pour les produits culturels. Cependant, l’émergence internationale de la musique pop coréenne ou K-pop raconte une histoire bien différente – celle d’une industrie qui a su saisir au vol toutes les opportunités offertes par la mondialisation et l’arrivée du numérique comme nouveau vecteur culturel. De plus, l’exercice stratégique des droits d’auteur adopté dans ce contexte par les entreprises concernées a permis d’amplifier la diffusion de la K-pop dans le monde. Celle-ci s’est alors imposée comme une nouvelle composante de la diversité culturelle mondiale ; le soft power de la Corée s’en est trouvé considérablement renforcé.
De l’art ou de la spéculation ? Ce que nous apprend le xix e siècle sur la valeur des œuvres
Authors: Saint-Raymond Léa
Published: November 2022

La valeur des œuvres d’art dépend moins de déterminants strictement économiques, que des rapports de force entre différents « prescripteurs ». Cet article identifie les processus de valorisation artistique et en étudie les principaux acteurs à la lumière du xix e  siècle parisien : l’irrésistible ascension de logiques considérées comme purement spéculatives témoigne en réalité d’un effacement du système académique face aux professionnels du marché.
Contenus culturels en ligne : culture de la gratuité et gratuité de la culture sont-elles synonymes ?
Authors: Amard Pauline
Published: November 2022

Internet a bouleversé la production, la diffusion et la réception des biens culturels, notamment via la baisse des coûts de production et l’accès gratuit à des contenus toujours plus nombreux et divers. Cet encadré explore les différentes formes de gratuité et les modèles économiques sous-jacents développés par les acteurs numériques de la culture, en particulier les plateformes et leurs stratégies de tarification.
Les NFT pour financer la culture : un jeton sur l’avenir ?
Authors: de l’Estoile Étienne , Régniez Théo
Published: November 2022

Annoncés comme une révolution pour le monde de la culture et son financement, les Non Fungible Tokens (NFT) sont encore au stade de promesse propice aux spéculations. La régulation du secteur se fait par l’intégration de ce nouvel actif dans l’ordre réglementaire et sa réappropriation partielle par les acteurs traditionnels du monde de l’art.
Internationalisation des plateformes et enjeux pour les industries de la culture : réflexions à partir du cas indien
Authors: Ithurbide Christine , Bouquillion Philippe , Kniaz Alix , Niedbalec Arnaud
Published: November 2022

Dans un contexte de globalisation, les plateformes numériques américaines tentent de se faire une place sur le marché indien en pleine croissance. À partir du cas des industries de la culture, cet entretien revient sur leurs différentes stratégies d’adaptation et d’investissement sur le plan industriel, économique et technologique. Il est également question des rapports d’influence, de pouvoir et d’hégémonie que suscitent ces plateformes dans l’industrie cinématographique et, plus largement, des transformations de l’économie indienne auxquelles les acteurs du numérique concourent.
Insertion professionnelle selon le handicap et le sexe
Authors: Collet Marc , Lhommeau Bertrand
Published: November 2022

Comment les politiques visant l’emploi des personnes handicapées prennent-elles en compte le genre ? À partir d’un travail de revue de littérature et de deux enquêtes par méthodes mixtes, cet article propose trois contributions essentielles à la réflexion. Tout d’abord, sur le plan historique, les politiques visant l’emploi des personnes handicapées ont été fondées sur un modèle de travailleur masculin, héritier notamment de la figure du mutilé de guerre. Ensuite, cet héritage a des conséquences différenciées selon le sexe, en dépit d’une neutralisation formelle des politiques sur le plan du genre, du fait des types de handicap que ces politiques ciblent en priorité. Enfin, se reproduisent au sein des politiques visant les « travailleurs handicapés » des inégalités de genre classique, liées par exemple à une attente de disponibilité totale pour la recherche d’emploi, ou encore à une hiérarchie sexuée des métiers au sein du travail protégé.
Femmes handicapées, les invisibles dans l’emploi
Authors: Desaint Claire
Published: November 2022

L’emploi des femmes handicapées se heurte à des obstacles qui se multiplient en raison de leur handicap, de l’inaccessibilité, mais surtout parce qu’elles sont des femmes. Leur participation à la vie économique est freinée par des préjugés, des stéréotypes dans toutes les dimensions de l’emploi : éducation, orientation, recrutement, chômage, carrière professionnelle, articulation des temps, retraites. Elles sont peu invisibles dans les publications des études et statistiques, d’où leur absence dans les politiques publiques sur le handicap et sur l’égalité femmes-hommes jusque très récemment. Les femmes handicapées font partie des populations les plus marginalisées et vivant dans la précarité. Il est temps que la société change son regard et considère les femmes handicapées non plus comme une charge, mais comme détentrices de talents, de compétences et d’expertise. Les femmes handicapées sont porteuses de changement et représentent un atout pour les entreprises et les institutions.
« Reconduire le pacte colonial » ou mener « une chasse à la sorcière » ?
Authors: Mollard Baptiste
Published: November 2022

Comme dans d’autres anciennes colonies d’Afrique, l’indépendance instaure une rupture en Algérie quant aux critères d’emploi et de recrutement du personnel d’État. Cet article revient sur le maintien en poste, devenu problématique après 1962, de milliers de fonctionnaires et agents algériens ayant travaillé pour l’administration coloniale française. Au moment où se bâtit une fonction publique nationale, les faits de résistance ou de collaboration pendant la guerre d’indépendance déterminent en effet de plus en plus les carrières individuelles. À l’issue de plus d’un siècle de domination coloniale et de huit années de guerre, le pays connaît certainement l’épuration administrative la plus massive des décolonisations africaines.
Regulating a monopolist with uncertain costs without transfers
Authors: Amador Manuel , Bagwell Kyle
Published: November 2022

We analyze the Baron and Myerson (1982) model of regulation under the restriction that transfers are infeasible. Extending techniques from the delegation literature to incorporate an ex post participation constraint, we report sufficient conditions under which optimal regulation takes the form of price‐cap regulation. We establish conditions under which the optimal price cap is set at a level such that no types are excluded and show that exclusion of higher cost types can be optimal when these conditions fail. We also provide conditions for the optimality of price‐cap regulation when an ex post participation constraint is present and exclusion is infeasible.
Dynamic delegation with a persistent state
Authors: Chen Yi
Published: November 2022

In this paper, I study the dynamic delegation problem in a principal–agent model wherein an agent privately observes a persistently evolving state, and the principal commits to actions based on the agent's reported state. There are no transfers. While the agent has state‐independent preferences, the principal wants to match a state‐dependent target. I solve the optimal delegation in closed form, which sometimes prescribes actions that move in the opposite direction of the target. I provide a simple necessary and sufficient condition for that to occur. Generically, the principal fares strictly better in the optimal delegation than in the babbling outcome. Over time, the principal is worse off in expectation, but the agent is better or worse off depending on the shape of the principal's state‐dependent target.
Rational bubbles and middlemen
Authors: Awaya Yu , Iwasaki Kohei , Watanabe Makoto
Published: November 2022

This paper develops a model of rational bubbles where trade of an asset takes place through a chain of middlemen. We show that there exists a unique and robust equilibrium, and a bubble can occur due to information frictions in bilateral and decentralized markets. Under reasonable assumptions, the equilibrium price is increasing and accelerating during bubbles although the fundamental value is constant over time. Bubbles may be detrimental to the economy, but any announcement from the central bank has no effect on welfare with risk neutral agents. Middlemen are the source of financial fragility.
Exploratory Research on Adaptability and Flexibility of a Serious Game in Operations and Supply Chain Management
Authors: Romagnoli Giovanni , Galli Matteo , Mezzogori Davide , Zammori Francesco
Published: November 2022

Serious games (SGs) in industrial engineering education are an established topic, whose implementations are continuously growing. In particular, they are recognized as effective tools to teach and learn subjects like Operations and Supply Chain Management. The research on SGs, however, is primarily focused on displaying applications and teaching results of particular games to achieve given purposes. In this paper, we provide an exploratory research on the flexibility and adaptability of a specific SG to different target groups and students’ needs in the field of operations and supply chain management. We first provide an overview of the SG and introduce its mechanics. Next, we explain how the mechanics has been implemented, by means of a set of parameters and indicators. We report the results of two different game sessions, played by a class of bachelor’s degree students at different levels of difficulty, which were achieved by altering some specific game parameters. By comparing the Key Performance Indicators (KPIs) in the two sessions, we report and discuss the consequences of the modified game parameters, in terms of impact on the difficulty level of the SG measured by the indicators. Experimental results match with our hypothesis, since the increased level of difficulty of sourcing and delivery times only deteriorates the related subset of indicators in the harder game session, without altering the remaining KPIs.
Competency-Based Education
Authors: Pluff Mary C. , Weiss Victoria
Published: November 2022

This chapter will review what competency-based education is and how delivering traditional educational credentials and degrees in a non-traditional, non-term program can better engage students and promote their success in the new higher educational market. It will discuss how the CBE model can benefit students, especially non-traditional populations. Students can leverage this type of “just in time” flexible education to obtain credentials, degrees, and certificates needed to meet professional goals and career requirements in the current job market. The chapter will summarize some of the common challenges administrators can face while administering CBE programs related to information technology barriers, student retention and motivation, and faculty perception and make recommendations for addressing these challenges. This discussion will better-prepare institutions of higher education in creating and implementing their own CBE programs.
Enhancing Critical Cultural Awareness in Foreign Language Learning Contexts Through the Critical Use of Student-Made Documentary Films
Authors: Cremona George
Published: November 2022

The purpose of this chapter is to answer one research question: How are the cultural representations of Germany presented to adolescents learning German as a foreign language (GFL) in Malta similar and/or different from the cultural representations of Germany that adolescents living in Germany include in self-produced autobiographical documentary films? The student self-made documentary films were initially analyzed through Multimodal Discourse analysis (Kress, 2011; Cremona, 2017). The outcomes of this were later compared to the results collected from GFL classrooms in Malta. Results indicate that when compared together, the two sets of representations manifest a sense of lack of critical cultural awareness within the Maltese GFL learning context. As the main conclusion of the chapter, based on the insights obtained from the content of the student self-made films, the chapter suggests a three-step chronological model through which gradually critical cultural awareness can be enhanced and facilitated within the GFL learning context in Malta and elsewhere.
Fourth Space Education
Authors: Abdel-Ghani Taher
Published: November 2022

This chapter coins the concept of fourth space as a cinematic methodological tool for architectural design and interpretation. Fourth space deals with the in-between activities and events that socially construct space. As an extension to Edward Soja's theory of third space, which is the socio-mental and physical experience of space, fourth space illustrates the metaphysical narrative articulation of space, i.e. how individuals tell the story of such experience. Similar to cinematic images, it portrays temporal and spatial narratives that are subjectively composed by the viewers. The chapter puts fourth space into practice by highlighting two workshops co-organized by the author in two different institutions. Though both workshops differed in the nature of the output, the participants were asked to cinematically comprehend and reconstruct the reality and spatiality of the surrounding environment. Eventually, the author establishes fourth space as abstracted representational thinking in the design process.
Teaching in a Post-Truth World
Authors: Huisingh Jared Benjamin
Published: November 2022

The rapid spread of mis/disinformation on social media creates a need for teachers to be better educated in how to navigate social media. The existing research suggests that there is a lack of formal requirements to teach about this phenomenon, and this paper helps to answer the call by reviewing the literature. This chapter also provides a helpful new mnemonic device for teachers and a theoretical framework to help justify a critical approach. Ultimately this chapter outlines the need for further study and reinforces the call for further instruction across diverse levels of instruction and curricula to help combat the spread of mis/disinformation.
Emergency Remote Teaching in Language Education
Authors: Atamturk Nurdan
Published: November 2022

This chapter reviews research studies conducted on emergency remote teaching in foreign language education in higher education and presents the results of the qualitative study which evaluates the effectiveness of emergency remote teaching in English as a foreign language instruction. The data were elicited from 15 undergraduate students studying at the English language teaching departments in North Cyprus. The textual data gathered through self-reports revealed that a great majority of the participants were in favor of hybrid instruction after the pandemic. The rationale behind this result was found to be the fact that both in-person and online education had their own merits and demerits in their own way and that hybrid education had a potential to exploit the merits while avoiding the demerits. It was an unexpected result to find that the participants were in favor of the digitalization of language education.
COVID-19 Reactions, Responses, and Ramifications for the Future of Education
Authors: Chakraborty Oindrila
Published: November 2022

In this chapter an endeavour has been established to capture the pre-COVID-19 and COVID-19-related educational transformation and adaptability of the teaching-learning community to embrace the exigency-based changes along with the exploration of the community of inquiry model (CoI) with its three basic elements: social presence, cognitive presence, and teaching presence. The chapter also delves into the learners' and teachers' reactions and adaptability towards the change to acquire it as a permanent solution to the traditional teaching procedure. There would be a discourse on the use of ICT (information and communications technology) to address the issues of coping mechanism with the virtual platform, making it a seamless process. In this chapter, the target audience gets a fair cognitive familiarity with the present state and future prediction of the COVID-19-driven pandemic and ramification of it in the future for academic discourse and referencing.
Diagnosis of Heart Disease Using Improved Genetic Algorithm-Based Naive Bayes Classifier
Authors: Karuppiah Kalaivani , N. Uma Maheswari , N. Balamurugan , R. Venkatesh
Published: November 2022

Heart disease is one of the most common diseases all over the world. The primary objective of this investigation is to diagnosis heart disease using hybrid classification based on NaN prediction and ANOVA test (NAN-ANOVA). The anticipated system comprises of two subsets: hybrid accelerated artificial bee colony and chicken swarm optimization algorithm (AABC-CSO) for effectual feature selection, followed by a classification technique with genetic algorithm based naive bayes classifier (GA-NBC). The first system in co-operates three stages: (i) loading the numerical value from the dataset (ii) evaluating the NaN value (iii) performing ANOVA test for efficient selection using AABC-CSO optimization algorithm. In second method, GA-NBC is proposed. The heart data set obtained from UCI machine repository, and was utilized for performing the computation. An accuracy of 61.0777%, sensitivity of 31.5868%, specificity of 67.8467%, precision of 17.9505, F-measure of 23.4050, G-mean of 46.6928 and loss of about 0.4480 was achieved according to the validation scheme.
An Encryption and Decryption Model for Data Security Using Vigenere With Advanced Encryption Standard
Authors: Erondu Udochukwu Iheanacho , Asani Emmanuel Oluwatobi , Arowolo Michael Olaolu , Tyagi Amit Kumar , Adebayo Nehemiah
Published: November 2022

As the amount of data being sent has risen dramatically in recent years; protecting that data has become increasingly important. Cryptography is the process of transforming plain text messages into ones that can no longer be decoded. An information security system's algorithm for encrypting and decrypting data cannot function without them. Data transmission via a communication network can benefit greatly from the use of encryption. Short message service (SMS) is still popular despite the availability of several online messaging platforms. Despite this, these services can be easily cracked, making SMS less secure for transferring critical information. The usage of appropriate cryptographic algorithms is essential to ensuring the safety of your data. Cryptanalysis and pattern prediction are better protected. This study uses a hybridized version of the Vigenère cipher with AES. In tests, the Vigenère-AES came out on top, and it may be used to keep sensitive data safe from prying eyes.
Prediction and Diagnosis of Heart Diseases Using Data Mining and Artificial Intelligence-Based Algorithms
Authors: Shaik Subhani , Kakulapati Vijayalakshmi
Published: November 2022

Prediction and diagnosis of heart disease have been a problem concerning practitioners worldwide. It is envisaged that this investigation would aid in identifying the optimum prediction model capable of offering accurate results. The investigators developed software with artificial intelligence algorithms' assistance, which can help doctors choose together calculation and diagnosis of heart illness. This chapter aims to predict heart illness tolerance using machine learning algorithms. This concept enables the mobile app to identify the heart problem based on the heartbeat of the person. AI algorithms perform comparative learning from an end-to-end graphical demonstration of the outcome.
Innovative Information Services by Smart Multimedia Systems for Senior and Disabled Citizens
Authors: Baby Maruthi Puvvadi
Published: November 2022

The advanced digital technology and wireless transformation now enabling the user with the next generation to connect devices for home and presents challenges for senior citizens and disabled persons. Wireless sensor network provides a smart health solution for enabling computerized, continuous, physical signals, and performing data processing operations. There are some important parameters such as heart rate, body temperature, respiration rate, blood pressure, etc., that are captured real-time activity signals and analysed by the appropriate connected sensors. Biosensors are complete and continuously capture physiological parameters at any time and everywhere. The complete source of information is integrated with the smartphone devices and sometimes the most risk factor information is immediately sent to the remote hospitals. The main aim of this chapter is to focus on the overview of various advanced technologies like google glass, Fitbit, Microsoft Band, etc. for monitoring elder people and disabled persons.
Venom of the giant ant Dinoponera quadriceps attenuates inflammatory pain in mouse cutaneous wound healing model
Authors: Assreuy Ana Maria Sampaio , Adjafre Beatriz Lima , Sousa Évilla Rayanne Oliveira , Alves Ana Paula Negreiros Nunes , Pires Alana de Freitas , Quinet Yves , Mota Mário Rogério Lima
Published: November 2022

Arthropod venoms are potential sources of bioactive substances, providing tools for the validation of popular use and new drugs design. Ants belonging to the genus Dinoponera are used in the folk medicine to treat inflammatory conditions. It was previously demonstrated that the venom of the giant ant Dinoponera quadriceps (DqV), containing a mixture of polypeptides, elicit antinociceptive effect in mice models of chemical, mechanical and thermal nociception. The aim of this study was to evaluate DqV antiinflammatory and antihypernociceptive effects in a mice model of traumatic cutaneous wound. Colonies of D. quadriceps were collected in the ‘Serra de Maranguape’ (State of Ceará, northeastern Brazil), a small mountain range located on the coastal zone, and the venom secreted by the ant glands was extracted with capillary tubes, further lyophilized and maintained at -20 ± 1ºC until use. Wounds were performed in the dorsum of Swiss mice. Animals received intravenous (i.v.) injection of DqV (50 µg kg-1 day-1) during 3 days for evaluation of inflammatory parameters present in the wounds: hypernociception, leukocyte infiltrate, myeloperoxidase activity, nitrite/nitrate content. Data was tested by two-way ANOVA and Bonferroni’s post-hoc test. DqV reduced (2.7 folds) hypernociception at 48 hours, leukocyte infiltration by 65% at 6 hours and myeloperoxidase activity by 60% at 0.5 hour after wound induction. In conclusion, the venom extracted from D. quadriceps glands attenuates inflammation and hypernociception in mice cutaneous wounds.
Genetic diversity in Cichla piquiti and cross-amplification for Cichla kelberi in the Serra da Mesa reservoir, Goiás, Brazil
Authors: Faquim Ruan Carlos Pires , Ferreira Ramilla dos Santos Braga , Castro Thaís Guimarães de , Silva Leo Caetano Fernandes , Telles Mariana Pires de Campos
Published: November 2022

Species Cichla piquiti and Cichla kelberi are found in the Serra da Mesa reservoir, Goiás and are sedentary with diurnal habits. This study aimed to evaluate the magnitude and distribution of genetic variability in subpopulations of C. piquiti with specific microsatellite loci and to test transferability in other microsatellite markers for C. kelberi. We analyzed 99 individuals of C. piquiti from seven points to evaluate genetic diversity and structure with 10 microsatellite loci. Transferability of 75 loci was tested in C. kelberi to increase microsatellite markers available. Genetic structure was assessed with Bayesian clustering. Global FST for C. piquiti was weak (0.056), but FIS (0.598) and FIT (0.621) were significantly high, indicating that the mating system has a strong influence on the organization of genetic variability with most mating among related. Two genetic groups were evidenced with most individuals allocated to a single group. Transferability of microsatellite loci for C. kelberi had low polymorphism. The level of genetic diversity was low, increasing inbreeding and suggesting that few individuals of C. piquiti colonized the reservoir during its installation due founder effect. Other factors as reproductive behavior and overfishing can act to decrease genetic diversity. Therefore, we reinforce the need for genetic monitoring to avoid loss of genetic diversity that can be intensified both construction of hydropower plants and ecological and reproductive aspects in some fish species.
Effects of leaf quality and colonization time on the abundance of bacteria in an experimental design
Authors: Rasvailer Vinícius da Silva , Gentilin-Avanci Camila , Scoarize Matheus Maximilian Ratz , Pinha Gisele Daiane , Benedito Evanilde
Published: November 2022

Small rivers, henceforth streams, depend on organic matter (nutrients and energy) from riparian vegetation. The quality of such allochthonous debris is determinant for the transformation of organic matter compounds, where the bacterial community has a crucial role in the final decomposition of the substrate. During bacterial colonization, debris with higher concentration of nutrients (more palatable) is prioritized, which accelerates the process. This study investigated the effects of leaf palatability of two native trees on bacterial colonization (abundance) over time, through a laboratory experiment that lasted 60 days. Values of C, N, P, C:N, C:P, polyphenols, tannins, lignin, lignin:N and leaf toughness of both species were compared. Bacterial abundance was higher in species with higher nitrogen values, although they had higher leaf toughness and more polyphenols, which differs from studies indicating that high leaf toughness represents low nutritional quality. The colonization time did not influence bacterial abundance. Therefore, processes degrading riparian vegetation and reducing nutritional quality can affect local decomposition, decreasing bacterial abundance.
Comparative Study of pesticides effects on Artemia salina (Leach, 1819) survival and morphology
Authors: Demarco Mônica , Gasparin Bianca Rosa , Vizzotto Alex , Alves Hemili , Restello Rozane Maria , Cansian Rogério Luis , Mielniczki-Pereira Albanin Aparecida
Published: November 2022

The use of pesticides has grown over the years and their effects on ecosystems, especially aquatic ones, have been increasingly observed. Agricultural pesticides are responsible for a large part of pollution in aquatic environments, and can reach non-target organisms, harming biodiversity. In this research, the effects of common pesticides on mortality rate and morphology of the model specie Artemia salina were evaluated. Commercial eggs of A. salina were hatched during 24-36 hours, at 37⸰C. Then, nauplli were exposed to different concentrations of insecticides Bifenthrin, Imidacloprid, Diflubenzuron, and Glyphosate herbicide. The mortality rate and lethal concentrations (LC) of each pesticide were established after 24 hours of treatment. Morphological analyses were made after treatment with the LC25 and LC50 of each pesticide. The results obtained show that Bifenthrin, Imidacloprid and Glyphosate promote linear mortality of the non-target species A. salina, while for insecticide Diflubenzuron, the mortality curve followed a logarithmic model. In addition, Diflubenzuron and Glyphosate induce changes in the morphological parameters of this specie. These results contribute to highlight the harmful effects of agricultural pollutants upon aquatic invertebrates. Besides, the present study confirms that Diflubenzuron does not affect only target species, but also has negative interference with the morphology of non-target species. This result has environmental implication since several invertebrates, including those not harmful to agriculture, can contact with Diflubenzuron in agricultural places.
Influence of the food matrix on dual-species biofilm of Listeria monocytogenes and Pseudomonas fluorescens
Authors: Caurio Daniel Leirias , Silva Danieli Quadros da , Dornelles Luana , Arechavaleta Nathasha Noronha , Mota Amanda de Souza da
Published: November 2022

In the food industry, the formation of biofilms results in serious microbial recontamination problem. This work aimed to study Listeria sp. obtained from sliced products and food handling surfaces, for the preparation of food of animal origin to be consumed cold. Listeria monocytogenes, Listeria innocua and Listeria seeligeri were detected. In the evaluation of antibiotic susceptibility, the isolates were sensitive to ampicillin and penicillin, which were the main antibiotics used in treatment. The isolates showed the ability to form biofilm in microplate, in stainless steel and polypropylene surfaces, with a variation of sessile cells between 4.29±0.23 and 7.03±0.01 log10 CFU cm-2 in TSBYE. This ability was also observed in food matrix composed of UHT whole milk in mono-species cultivation and in associated cultivation of L. monocytogenes with Pseudomonas fluorescens. The application of sanitizers peracetic acid and sodium hypochlorite revealed efficiency in the eradication of adhered cells and biofilms formed in stainless steel surfaces. Therefore, Listeria sp. showed to be persistent and able to form biofilm in mono-species cultivation or associated with P. fluorescens, under different conditions. Taking these aspects into account, the need for proper hygiene in the food production process is highlighted in order to avoid risks to the consumers health
Chemical composition and antioxidant activity of leaf essential oil from Calyptranthes concinna DC. (Myrtaceae)
Authors: Antonelo Fábio Antônio , Rodrigues Mariana Soares , Wagner Júnior Américo , Montanher Paula Fernandes
Published: November 2022

The biodiversity found in Brazilian’s ecosystems brings the possibility of discovering new natural products with wide application potentials. However, knowing their availability and chemical composition is crucial. Thus, the aim of this study was to evaluate the extraction yield, chemical composition and antioxidant activity of essential oil from fresh leaves of Calyptranthes concinna DC., a native species of Myrtaceae occurring in Brazilian Atlantic Rain Forest. Plant samples were collected in Southeastern Brazil and the essential oil was extracted by hydrodistillation. The chemical composition was evaluated by Gas Chromatography associated with Mass Spectrometry and antioxidant activity was measured using ABTS, DPPH and FRAP methods. The extraction yield obtained was 0.015% (v), and the chemical composition revealed elemicin, a phenylpropanoid as the major component (36.46%). Still, β-caryophyllene (16.94%), germacrene B (8.28%) and spathulenol (7.33%) proved to be relevant for the same essential oil. Antioxidant activity was obtained for ABTS and DPPH radical scavenge (134.82 ± 2,9 and 93.70 ± 1.7 µM TE mL-1, respectively) and FRAP (11.31 ± 0.2 µM FeSO4 mL-1 OE), revealing hydrogen-donation as the main antioxidant mechanism. To our knowledge, this is the first report of antioxidant activity of C. concinna essential oil. The product presented compounds of great relevance, with possibilities of application in different areas including food, agriculture and pharmaceutical segments
Coastal wetlands of the north of Peru: preservation progress
Authors: Seminario-Córdova Renzo Antonio , Barreto Israel Barrutia , Tuesta Zenayda Emilia Estrada
Published: November 2022

Wetlands provide several ecological, biological, and environmental benefits, including their role in the hydrological cycle, especially in coastal areas. Coastal wetlands are affected by anthropogenic threats, as these are in constant synergy with local populations and agricultural expansion, which is one of the main factors causing their depletion. In addition, the ravages of climate change accentuate their vulnerability, which may lead to their irreparable loss. In this regard, the objective of this work was to identify the coastal wetlands of northern Peru and in order to verify the progress made in their conservation. For this purpose, a search was performed in wetlands atlas and similar studies, and a check was made to see if those wetlands had records of flora and fauna studies. Finally, information was sought on protection measures in the area. Consequently, 22 coastal wetlands were registered, and among them, three are internationally recognized as Ramsar sites: Mangroves of Tumbes, Mangrove of San Pedro de Vice, and the Virrilá Estuary, where commendable conservation efforts are underway. However, it was found that more than 77% of the coastal wetlands in northern Peru do not have preservation actions or scientific evidence describing their biodiversity.
Português na fronteira Bolívia-Brasil a partir de uma visão decolonial
Authors: Mancilla Suzana , Maciel Ruberval Franco
Published: November 2022

Os territórios fronteiriços congregam uma diversidade de povos que extrapolam a configuração bi ou trinacional de Estados-nação. São populações que transitam e, por vezes, se estabelecem nessas regiões distantes dos centros nacionais gerando dinâmicas próprias de aproximação, quais sejam trocas e atitudes colaborativas que coexistem com embates, assimetrias e tensões nos diferentes âmbitos. No que tange às línguas presentes na fronteira Bolívia-Brasil, transitam o espanhol ou castelhano e o português como línguas majoritárias em uso, assim como línguas indígenas regionais e de outras procedências, bem como línguas provenientes de distintos países, compondo um mosaico plurilinguístico. Isso posto, esta pesquisa tem em vista mapear os âmbitos representativos em que está presente o português ao atravessar a fronteira, na área urbana de Puerto Quijarro, município boliviano fronteiriço a Corumbá, Brasil. Trata-se de um estudo interpretativista com base em registros de campo com o apoio de dados documentais e estudos bibliográficos, analisados numa perspectiva decolonial tendo como base Rivera Cusicanqui (2010), estudiosa que parte da prática descolonizadora para justificar um discurso ou uma teoria decolonial. Nesse contexto, a língua portuguesa está estendida além do limite geográfico, formando uma nova territorialidade lusófona na fronteira com a Bolívia, a priori denominado português boliviano. Sua presença é reconhecida nos documentos oficiais locais de Puerto Quijarro, em que se registra o português como uma das línguas mais faladas na localidade, depois do castelhano. Seu modo de funcionamento é peculiar, em especial no setor comercial e de serviços. Tal situação não está associada ao ensino de línguas no sistema educativo boliviano, uma vez que na área de lenguajes da grade curricular local estão presentes o castelhano, uma língua estrangeira (o inglês) e uma língua nativa (o bésiro). Há evidências de que a interpenetração das línguas majoritárias em um e outro território ocorre de forma particular, igualmente sua intercompreensão.
Executives' Leadership Development and Yoga Practices
Authors: Pragadeeswaran S. , Panchanatham N.
Published: November 2022

Yoga practice is a cosmic training programme which increases deep and constant self-awareness in the individual by evolutionary process of development. This evolutionary development of leadership by higher level spiritual practice of yoga is the need of the hour in management science. This study was focused to probe the leadership behaviour differences among the yoga practicing and non-practicing groups of executives. With this objective a survey was conducted on 334 executives (out of 334, 167 were yoga practicing executives) of large scale public sector organization in India. The executives were selected at random to assess the common character difference among the yoga practicing and non-practicing executives. About GI dimensions of executives' leadership behaviour were measured through six standardized tools. Discriminant analysis was applied in this study. The results revealed that yoga regularly practicing executives had good self-management and social facilitator capabilities than occasionally and non-yoga practitioners.
Management for Growth and Development
Authors: Gunaratne P. S. M.
Published: November 2022

No abstract available
Deprem Verileri Kullanılarak Hızölçer ve İvmeölçer Kayıtlarının Karşılaştırılması
Authors: ATEŞ Erkan , KARTAL Recai Feyiz , KURU Turgay
Published: November 2022

Ülkemizdeki deprem etkinliğinin yakından izlenmesi, değerlendirilmesi ve arşivlenmesi önemlidir. AFAD Deprem Dairesi Başkanlığı, hızölçer, ivmeölçer ve sabit Küresel Konumlama Uydu Sistemleri (KKUS) cihazlarından oluşan toplam 1.169 kayıt cihazı ile Avrupa’nın en büyük 2’nci deprem gözlem ağına sahiptir. Büyük depremlerde hızölçerler belli bir genlik değerinin üzerindeki hareketi ölçememekte ve doyuma (clip) ulaşmaktadır. Bu çalışmada, farklı istasyonlardaki hızölçer ve ivmeölçerlerin farklı büyüklükteki depremler için kaydettiği kayıtlar karşılaştırılmıştır. Sonuçlar değerlendirildiğinde 7 deprem için hızölçerlerin doyuma ulaştığı, ivmeölçerin ise deprem genliğini tam olarak ölçtüğü görülmüştür. Hızölçer ve ivmeölçerlerin aynı konumda kullanılması durumunda, uzak ve yakın kaynaklı yer hareketinin bütün genliği ve frekans içerikleri kaydedilebilmektedir. Bu nedenle, depremselliği yüksek bölgelerde bulunan bazı istasyonlarda, hızölçer ve ivmeölçer kayıtçılarının aynı yerde yerleştirilmesi ile sismoloji çalışmalarına önemli katkı sağlanacağı düşünülmektedir.
Infecciones transmisibles sexualmente que afectan colon, recto y ano.
Authors: La Rosa Luciana , Svidler López Laura
Published: November 2022

Dedicamos este relato a todos aquellos que día a día luchan por ser visibilizados: a las mujeres en general y a las cirujanas en particular; a los hispano parlantes, principalmente de lugares que no pertenecen al denominado primer mundo; a los que producen conocimiento en países no hegemónicos; a los que tienen un acceso dificultoso al sistema de salud y, en especial, a los que padecen infecciones sexualmente transmisibles y no encuentran a un profesional integralmente preparado para atenderlos.
PENERAPAN FLIPPED CLASSROOM BERBASIS PENDEKATAN MULTIREPRESENTASI UNTUK MENINGKATKAN PEMAHAMAN KONSEP MAHASISWA DIMASA PANDEMI COVID-19
Authors: Busyairi Ahmad , Verawati Ni Nyoman Sri Putu , . Hikmawati
Published: November 2022

The purpose of this study was to determine the effectiveness of the application of Flipped Classroom based on a multi-representation approach in improving student understanding of concepts during the COVID-19 pandemic. The research method used a pre-experiment with a one-group pretest-posttest design. The sample consisted of 28 students of the Mathematics education study program at the University of Mataram class of 2021/2022 who were taking Basic Physics courses. The results of the study showed that the flipped classroom strategy based on a multi-representation approach could improve students' understanding of concepts in the high category ( = 0.71). It can be concluded that the flipped classroom strategy based on a multi-representation approach is effective in improving students' understanding of physics concepts, especially the concept of motion kinematics.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL FISIKA PADA MATERI GERAK LURUS DI KELAS X SMAN 2 PINRANG
Authors: Nurnaifah Ihfa Indira , Sakti Irma , . Megawati
Published: November 2022

Abstrak: Analisis Kesalahan Siswa dalam Menyelesaikan Soal Fisika pada Materi Gerak Lurus di Kelas X SMAN 2 Pinrang. Penelitian ini bertujuan untuk mengetahui jenis kesalahan siswa dalam menyelesaikan soal-soal Gerak Lurus dan faktor penyebabnya. Penelitian ini termasuk jenis penelitian deskriptif kualitatif dengan variabel utama dalam adalah jenis kesalahan siswa dalam menyelesaikan soal fisika pada materi Gerak Lurus yang dilaksanakan pada bulan Maret-April 2021 di SMAN 2 Pinrang. Instrumen dalam penelitian ini adalah dokumen lembar kerja siswa berupa 5 butir soal essay yang bisa mewakili indikator capaian dari materi Gerak Lurus. Hasil yang diperoleh dalam penelitian ini menunjukkan masih banyaknya siswa yang melakukan kesalahan pada saat mengerjakan soal fisika yaitu kesalahan konsep (22,7%), kesalahan strategi (77,3%), kesalahan menggunakan data (22,7%) dan kesalahan hitung (63,6%). Adapun faktor yang menjadi penyebab siswa melakukan kesalahan adalah siswa keliru dalam menerapkan rumus, kurang teliti dalam penggunaan simbol, siswa tidak mengikut-sertakan satuan pada perhitungan matematis sehingga satuan akhirnya salah, siswa kurang mampu menerjemahkan soal ke dalam besaran fisis, siswa kurang memahami maksud soal, siswa kurang teliti dalam mengalikan angka-angka, dan karena siswa terburu-buru dalam menyelesaikan soal. Hasil penelitian tersebut dapat menjadi bahan evaluasi bagi para guru untuk menindaklanjuti permasalahan ini guna mengurangi kasus serupa.
El seminario de investigación textos escolares y educación histórica en la Universidad Pedagógica Nacional, Unidad 151 Toluca
Authors: Ramírez María Guadalupe Mendoza , González Rodolfo Huerta
Published: November 2022

Este trabajo tiene como propósito documentar los resultados del seminario de investigación de Textos Escolares y Educación Histórica que se desarrolla en la Universidad Pedagógica Nacional, Unidad Toluca, Estado de México desde 2009, con la apertura de la línea de investigación sobre libros de texto en la que participan alumnos de la Maestría en Enseñanza de las Humanidades y de la licenciatura en Pedagogía. Los libros de texto y los libros escolares productos de la Reforma Integral de Educación Básica (RIEB) en México constituyen una rica fuente de investigación que permite a los estudiantes de maestría y licenciatura construir objetos de estudio que aporten al conocimiento de la cultura escrita escolar en las escuelas de primaria y secundaria de nuestro país.
ФАКТОРЫ ПСИХОЛОГИЧЕСКОЙ ГОТОВНОСТИ К ФИНАНСОВОЙ САМОСТОЯТЕЛЬНОСТИ В ГРУППЕ УЧАЩЕЙСЯ МОЛОДЕЖИ9
Authors: Дробышева Т.В.
Published: November 2022

Статья посвящена проблеме детерминации финансовой само- стоятельности личности. Описаны показатели психологической готовности учащейся молодежи к финансовой самостоятельности: способность планировать свои расходы, умение самостоятельно решать свои финансовые проблемы, выбирать оптимальные стратегии экономического поведения для поддержания финансовой стабильности. Все они связаны с установкой молодых людей на обретение финансовой самостоятельности не зависимо от каких-либо обстоятельств. В качестве системообразующего фактора психологической готовности к финансовой самостоятельности выступила жизненная позиция респондентов, основанная на значимости ценностных ориентаций, связанных с профессиональной самореализацией молодых людей, а также их внутреннем локус контроле.
ПРОБЛЕМА АДЕКВАТНОСТИ И ПРАКТИЧНОСТИ СИСТЕМЫ ПСИХОЛОГИЧЕСКОЙ ОЦЕНКИ ЧЕЛОВЕЧЕСКОГО КАПИТАЛА
Authors: Аванесян Г.М.
Published: November 2022

В статье анализируются основные подходы к концепции человеческого капитала и роли психологического компонента в нем. Применение универсального алгоритма позволит выделить критерии интерпретаций содержательных элементов и оценки психологических составляющих человеческого капитала. Предполагалось, что переход от оценочной системы при управлении человеческими ресурсами, её модификации, к психологической оценке человеческого капитала позволит расширить функциональные возможности эффективного использования инвестиций и экономических ресурсов. Лаконично представлены результаты наших многолетних исследований и практической работы по внедрению методов психологической диагностики для отбора кадров в государственные и не государственные организации, учебные заведения и спортивные команды. Проблема разработки универсальной и адекватной системы психологической оценки человеческого капитала приобретает особую актуальность для стран, находящихся на стадии реформирования политического и экономического уклада.