bluuebunny/crossref_metadata_2025 huggingface dataset:
Péntek János – Benő Attila: A magyar nyelv Romániában (Erdélyben)
Authors: Pál Helén
Published: December 2021

Recenzió. Péntek János – Benő Attila: A magyar nyelv Romániában (Erdélyben). (A magyar nyelv a Kárpát-medencében a XX. század végén VI. Kontra Miklós szerk.) Erdélyi Múzeum-Egyesület – Gondolat Kiadó, Kolozsvár–Budapest, 2020. ISBN 978-606-739-153-4, ISBN 978-963-556-026-4.
The promotion of amaranth value chains for livelihood enhancement in East Africa: A systems modelling approach
Authors:   International Livestock Research Institute (ILRI), Dakar, Senegal., Dizyee Kanar , Baker Derek ,   UNE Business School, UNE, Armidale, New South Wales, Australia, Herrero Mario ,   CSIRO, St Lucia, Queensland, Australia, Burrow Heather ,   Institute for Rural Futures, UNE, Armidale, New South Wales, Australia, McMillan Larelle ,   CSIRO, St Lucia, Queensland, Australia, Ndaka Sila Daniel ,   Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya, Rich Karl M. ,   International Livestock Research Institute (ILRI), Dakar, Senegal; UNE Business School, Armidale, New South Wales, Australia
Published: December 2021

This paper conducts ex-ante impact assessments for policy interventions to promote amaranth value chains in Tanzania and Kenya. Amaranth is an underdeveloped, drought-resistant, and nutrition-rich crop used for human food, animal fodder, and ornamental purposes. Promoting amaranth value chains is a difficult task, given that amaranth is not a well-established commodity and has limited market outlets in the developing world at present. This paper provides a framework within which conduct scenario analysis of ways to promote amaranth value chains using system dynamics (SD). We constructed an integrated amaranth production and market model to evaluate the impact of producer adoption of improved production technologies (improved seed varieties), and changes in demand for amaranth products, on producer profits and planting behaviour. The results of our model show that the profitably upgrading and commercialising of amaranth value chains require multifaceted and chain-level interventions that improve supply- and demand-side conditions. Interventions that target only the supply side serve to increase amaranth production, but generate minor economic gain for producers.
Does crop diversification reduce downside risk of external maize yield-enhancing technology? Evidence from Ethiopia
Authors:   International Maize and Wheat Improvement Center (CIMMYT), Addis Ababa, Ethiopia, Jaleta Moti , Marenya Paswel ,   CIMMYT, Nairobi, Kenya., Beshir Bedru ,   Ethiopian Institute of Agricultural Research (EIAR), Melkassa Agricultural Research Center (MARC), Melkassa, Ethiopia.
Published: December 2021

Unexpectedly lower yield outcomes (downside risks) challenge farmers’ use of external inputs that can enhance crop productivity. Using household-level panel data collected from Ethiopia, we estimated the effects of crop diversification through maize-legume intercropping/rotation on maize yield distribution and downside risk. Results from endogenous switching regression models and quintile moment approaches show that plots with maize-legume intercropping/rotation have the highest average maize yield. Such crop diversification reduces the downside risk in maize yield more when applied to plots receiving external inputs. The results imply that, in addition to the technical support around external input use in smallholder maize production, Ethiopia’s agricultural extension may also need to give due emphasis to both spatial and temporal crop diversification practices. This could enhance crop productivity further and reduce the potential downside risks typically hampering smallholders’ external input use in maize production.
Déterminants d’insolvabilité des termes de contrats agricoles : cas des riziculteurs du Burkina Faso
Authors:   Institut de l’environnement et de recherches agricoles (INERA), Station de recherche de Saria, Burkina Faso, Sawadogo Didier , Arouna Aminou ,   Centre du riz pour l’Afrique (AfricaRice), Bouake, Côte d’Ivoire, Ouédraogo Souleymane ,   Institut de l’environnement et de recherches agricoles (INERA)/CREAF Kamboinsin, Burkina Faso.
Published: December 2021

La production du riz sous contrat a pour avantage de répondre aux exigences de la qualité de la production du riz et de satisfaire la demande intérieure du riz pour le pays. Cette étude a pour objectif d’analyser les critères d’insolvabilité des contrats des riziculteurs au Burkina Faso. L’enquête terrain a concerné un échantillon aléatoire de 400 riziculteurs. Le modèle multivarié a permis d’analyser les déterminants permettant de satisfaire les termes de contrat et d’assurer ainsi la solvabilité des contrats sur les plaines rizicoles. Les résultats montrent que l’accès au crédit, l’accès à la formation et les contrats formels affectent significativement les accords de prix, de la qualité et de la quantité. Ces analyses nous relèvent aussi l’importance et la pertinence des contrats de type formels pour assurer une meilleure pratique et de solvabilité des contrats rizicoles.
Preferences and crop choice during Zimbabwe’s macroeconomic crisis
Authors:   Department of Agricultural and Resource Economics, University of Arizona, Tucson, Arizona, United States, Josephson Anna
Published: December 2021

Smallholder farmers face considerable risk and uncertainty, particularly when markets are incomplete or missing. We consider household crop diversity and crop choice in Zimbabwe, where output markets are largely absent and price signals are inaccurate. In this setting, considering preferences and tastes provides a deeper understanding of how households ensure food security in environments without robust markets. We use data that straddles the period of hyperinflation in Zimbabwe and the collapse of the country’s currency to study household cropping behaviour in a time of extreme stress. This allows us to better understand the relationship between market failure and crop choice in Sub-Saharan Africa
PENGARUH MOTIVASI DAN KOMPETENSI TERHADAP KINERJA KARYAWAN PADA PT TRINITY AUTO DI SAMARINDA
Authors: Syarifah Tika Rafid
Published: December 2021

This study aims to test and analyze how much influence Motivation and Competence on Employee Performance at PT Trinity Auto in Samarinda. The research method used in this study was observation, interviews, questionnaires, and literature study using a Likert scale and the sample used was 63 samples. Data analysis tools used are validity test, reliability test, classic assumption test, multiple linear regression test. The results showed that motivation and competency simultaneously affect employee performance. From the results of the correlation test of 0.681 which has a strong relationship between the independent variable and the dependent variable. The results of the coefficient of determination test which among the independent variables have an effect of 68.1% while the rest are influenced by variables outside this study. From the results of this study concluded that the Competence that most influences on employee performance is seen from the results of the t test with a value of 6,055. These results can prove that competence at PT Trinity Auto has an influence on employee performance.
Szanse i zagrożenia dla bezpieczeństwa i higieny pracy związane z wdrażaniem w przedsiębiorstwach technologii Przemysłu 4.0
Authors:   Centralny Instytut Ochrony Pracy – Państwowy Instytut Badawczy, Pawłowska Zofia
Published: December 2021

Wraz z wdrażaniem technologii Przemysłu 4.0 zmienia się środowisko pracy oraz powstają nowe szanse i zagrożenia dla bezpieczeństwa i higieny pracy. Są one związane zarówno z samymi technologiami, jak i ze zmianami w organizacji pracy oraz sposobem jej wykonywania. W artykule przedstawiono wyniki badania, przeprowadzonego wśród osób zajmujących się zagadnieniami bezpieczeństwa i ochrony zdrowia w pracy w celu pozyskania informacji na temat identyfikowanych przez nich czynników, które wpływają na bezpieczeństwo i zdrowie pracowników w przedsiębiorstwach wdrażających technologie i koncepcje produkcji w ramach Przemysłu 4.0.
Ograniczanie obciążenia układu mięśniowo-szkieletowego przez zastosowanie wybranych urządzeń wspomagających przemieszczanie ładunków
Authors:   Centralny Instytut Ochrony Pracy – Państwowy Instytut Badawczy, Tokarski Tomasz
Published: December 2021

Dzięki zastosowaniu odpowiednich urządzeń wspomagających podnoszenie i przenoszenie ładunków można wyraźnie zmniejszyć obciążenie układu mięśniowo-szkieletowego. Jest to o tyle ważne, że z każdym rokiem przybywa pracowników po 55. roku życia, którzy dysponują mniejszą siłą mięśniową w porównaniu z osobami w młodszym wieku, a pracodawcy muszą dostosować warunki pracy osób starszych do ich możliwości psychofizycznych. W artykule przedstawiono wybrane urządzenia wspomagające podnoszenie i przenoszenie ładunków oraz zasady ich doboru z uwzględnieniem indywidualnych potrzeb i możliwości pracowników.
Patterns of production and sustainability of cattle ranching in the state of Pará - Brazilian Amazon
Authors:   Universidade Federal do Pará, Olimpio Silvia Cristina Maia , Gomes Sergio Castro ,   Universidade da Amazônia, Santana Antônio Cordeiro de ,   Universidade Federal Rural da Amazônia
Published: December 2021

The aim of this study was to analyze the production patterns present in rural properties producing cattle in the micro-regions that make up the state of Pará. Exploratory Factor Analysis (EFA) was applied to identify the patterns, and these data are used to evaluate correlation between the heterogeneity of rural properties and the environmental impact on the identified patterns. The theoretical contribution is based on discussions on global impacts of food production and environmental sustainability and the impacts of livestock production systems in Brazil and the Amazon. Survey data were taken from the 2017 Agricultural Census, available for the 144 municipalities in the state, and pooled into 22 micro-regions. Three patterns of rural properties were identified: the first related to conservation management practices and called transition management; the second highlights aspects associated with information technology and communication (ICT) and productivity called technical productive efficiency; the third indicates the importance of social organization and access to information called social participation. With these patterns, it was possible to develop the Traditional Performance Indicator (TPI), in which the micro-regions of São Félix do Xingu, Itaituba and Conceição do Araguaia were those with the highest values of this indicator, water protection practices are present in the properties, however, in precarious conditions, and conservation practices are rarely used. The correlation between heterogeneity, measured by the size of pasture area in each microregion, and the TPI is positive, strong and significant. In this transition context, public policies are essential to provide access to infrastructure, credit and good animal health and biotechnology practices
Physiological potential and health of peanut seed treated with ozone
Authors:   Instituto Federal de Mato Grosso do Sul, Machado Izamara Marzolla Gutierres Jacob , Inacio Luiz Henrique ,   Instituto Federal de Mato Grosso do Sul, Silva Nátaly Diane Rocha ,   Ciarama Máquinas, Gonçalves Francisco José Teixeira ,   Instituto Federal do Maranhão, Costa Denis Santiago ,   Instituto Federal de Mato Grosso do Sul
Published: December 2021

Peanut seed can be infected by pathogen diseases that adversely affect the oil crop’s value chain. Ozone gas (O3) can be an alternative for the control of fungal diseases due to its high oxidizing potential. In this study, we investigated the effects of O3 exposure time on physiological and health characteristics of seed from three peanut cultivars. Seed from peanut cultivars Granoleico, IAC OL3, and IAC 503 were analyzed for their health (blotter test) and physiological potential (germination, first count, and seedling length) after exposure to O3 for 0, 1, 8, and 16 h. Peanut seed physiological quality and health differed among cultivars. Exposure of seed from peanut cultivars IAC OL3, IAC 503, and Granoleico to O3 at a rate of 600 mg h-1 did not affect the development of normal seedlings as measured by the first count and germination, but seedling length increased, decreased, or was not affected in cultivars Granoleico, IAC 503, and IAC OL3, respectively. Also, O3 did not eradicate fungal infections in peanut seed treated with O3 at a rate of 600 mg h-1 for up to 16 h, but the incidence of the fungus Rhizopus sp. in seed from cultivars IAC OL3, Granoleico, and IAC 503 increased, decreased or was not affected, respectively, after 8 h.
Antibody frequency for Toxoplasma gondii and Neospora spp. in domiciliated and stray cats from Araguaína, Tocantins, Eastern Amazonia
Authors:   Universidade de Brasília, Ribeiro Taiã Mairon Peixoto , Reis Thássia Silva ,   Universidade Federal do Tocantins, Sousa Sebastiana Adriana Pereira ,   Universidade Federal do Sul e Sudeste do Pará, Freiria Lucas Marlon ,   Universidade Federal do Acre, Gomes Fábio Alves ,   Instituto Federal de Educação, Ciência e Tecnologia de Roraima, Paludo Giane Regina ,   Universidade de Brasília, Spohr Kledir Anderson Hofstaetter ,   Universidade Federal de Mato Grosso, André Marcos Rogério ,   Universidade Estadual Paulista Júlio de Mesquita Filho, Santos Helcileia Dias ,   Universidade Federal do Tocantins, Jayme Valéria de Sá ,   Universidade Federal de Goiás
Published: December 2021

Toxoplasma gondii and Neospora spp. are protozoa that have a significant impact on animal health due to the diseases they cause in domestic and wild animals. The aim of the present study was to investigate the presence of antibodies against T. gondii and Neospora spp. in cats from northern Brazil. Serum samples were collected from 180 cats in the municipality of Araguaína, Tocantins and used to evaluate the presence of anti-T. gondii and anti-Neospora spp. antibodies using the indirect fluorescent antibody test, with a cutoff of 1:64 and 1:25, respectively. The association between infection and individual animal characteristics (age, sex, origin, breed, and clinical signs) was tested using univariate analysis, followed by multivariate logistic regression. We found that 48.3% (87/180) of the animals had anti-T. gondii (95% CI: 40.8%–55.90%) and 3.9% (7/180) had anti-Neospora spp. (95% CI: 1.6%–7.8%) antibodies. There was no association between age, sex, breed origin, clinical signs, and seropositivity for T. gondii. Cats of defined breeds were more likely to be infected by Neospora spp. (OR = 10.7). Therefore, we found a high rate of seropositivity for T. gondii and a high rate of occurrence of Neospora infections in cats from the Araguaína region. The exposure of the feline population to the studied coccidia indicates the need to monitor the feline population for these infections and underscores the importance of effective sanitary measures against such pathogens.
Phytochemical screening, toxicity and antimicrobial activity of different Mimosa tenuiflora extracts on Aeromonas strains
Authors:   Universidade Federal do Recôncavo da Bahia, Crepaldi Aura Lacerda , Bispo Aline Simões da Rocha ,   Universidade Federal do Recôncavo da Bahia, Cruz Dennifier Costa Brandão ,   Universidade Federal do Recôncavo da Bahia, Tavechio Washington Luiz Gomes ,   Universidade Federal do Recôncavo da Bahia, Araújo Floricéa Magalhães ,   Universidade Federal da Bahia, Rocha Thúlio Victor Silva ,   Universidade Federal do Recôncavo da Bahia, Andrade Jackeline Pereira ,   Universidade Estadual de Feira de Santana, Evangelista-Barreto Norma Suely ,   Universidade Federal do Recôncavo da Bahia
Published: December 2021

The indiscriminate use of synthetic veterinary drugs in fish farms for disease control has caused recurring environmental pollution and reduced productivity; however, the search for ecologically viable alternatives is increasing. Thus, this study aimed to evaluate the phytochemical characterization of the hexanic, methanolic, and aqueous extracts of black jurema (M. tenuiflora), and their antimicrobial activity against strains of Aeromonas, and acute toxicity (LC50) to fingerlings of O. niloticus. The isolates were identified, and phenotypic virulence and antimicrobial susceptibility tests were performed. A. caviae, and A. veronii bv. veronii showed 75.0 - 87.5% positivity for the virulence factors tested, and resistance to the antimicrobials ampicillin, amoxicillin, erythromycin, and tetracycline of 67.0% and 50.0%, respectively. Phytochemical screening of black jurema extracts detected phenols, flavonoids, tannins, saponins, alkaloids, and steroids/triterpenoids, with methanol proving to be more efficient in the extraction of metabolites. The methanolic and aqueous extracts showed moderate antimicrobial activity, with minimum inhibitory concentration and minimum bactericidal concentration of 250 μg mL-1, and the methanolic extract revealed an LC50 of 40 μg mL-1 for O. niloticus. This study demonstrated the efficiency of the in vitro antimicrobial activity of M. tenuiflora extracts, and their use in vivo in the treatment or prophylaxis in fish farming can be investigated to replace the use of synthetic antimicrobials.
The Investigation of Thermal Degradation and Combustion of Ultra-High Molecular Weight with the Addition of Triphenylphosphate
Authors: Gonchikzhapov Munko , Paletsky Aleksandr , Korobeinichev Oleg
Published: December 2021

The influence of triphenylphosphate (TPP) on ultra-high molecular weight polyethylene (UHMWPE) gasification under thermal decomposition was studied. The temperature at which formation of gaseous products begins was measured for pure and TPP-doped UHMWPE. The kinetics of thermal decomposition of pure UHMWPE and mixed with TPP at high rates of heating (~ 100–200 K/s) was studied. The activation energy and the pre-exponential factor of the rate constant of the decomposition reaction were determined for pure and TPP-doped UHMWPE. The time ignition of the samples in air at their heating from the top surface to a temperature of 350 and 400 С was determined. The studies were conducted using dynamic mass-spectrometric thermal analysis (DMSTA) microthermocouples and visualization of process
Stability of Flat Plate Boundary Layer Over Compliant Coating with Increased Rigidity
Authors: Boiko Andrey , Kulik Viktor , Filimonov V.
Published: December 2021

In the paper the results of hydrodynamic stability computations for Blasius boundary layer over single-layer compliant coatings in the framework of complete (in respect to interface conditions) linear quasi-parallel approach are presented. Data on viscoelastic properties (elastic modulus and loss factor) of the coatings as functions of frequency obtained in a series of special experiments were used. A range of the coating parameters, which provide a compromise between their rigidity and intensity of interaction with the flow, was determined. Based on en -method, estimations of the transition Reynolds number were done
Nonlinear Interaction of High-Intensity Disturbances into the Supersonic Boundary Layer
Authors: Terekhova Natalya
Published: December 2021

A nonlinear model of interaction of disturbances in the regime of coupled combinatorial relations is used to explain the dynamics of unstable waves. The model includes effects of self-action and combinatorial interaction of unstable waves. Considered effects in the boundary layer with M = 2 controlled disturbance large enough intensity. In the second case when M = 5,35 examines the interrelationship of two-dimensional perturbations of various nature – vortex and acoustic. Shows the direction of impact of the different components of the nonlinear process. Found that this model of the second order nonlinearity can accurately describe the features of longitudinal dynamics of plane waves
Evaluation of Turbulent Kinetic Energy Dissipation Rate in a Free Jet Flow from PIV Measurements
Authors: Dulin Vladimir , Kozorezov Yuriy , Markovich Dmitriy
Published: December 2021

The present paper reports PIV (Particle Image Velocimetry) measurements of turbulent velocity fluctuations statistics in development region of an axisymmetric free jet (Re = 28 000). To minimize measurement uncertainty, adaptive calibration, image processing and data post-processing algorithms were utilized. On the basis of theoretical analysis and direct measurements, the paper discusses effect of PIV spatial resolution on measured statistical characteristics of turbulent fluctuations. Underestimation of the second-order moments of velocity derivatives and of the turbulent kinetic energy dissipation rate due to a finite size of PIV interrogation area and finite thickness of laser sheet was analyzed from model spectra of turbulent velocity fluctuations. The results are in a good agreement with the measured experimental data. The paper also describes performance of possible ways to account for unresolved small-scale velocity fluctuations in PIV measurements of the dissipation rate. In particular, a turbulent viscosity model can be efficiently used to account for the unresolved pulsations in a free turbulent flow
Super Charm-Tau Factory: Computing Requirements
Authors: Baldin Evgeny , Blinov Vladimir , Zaitsev Aleksandr , Korol Aleksandr , Logashenko Ivan , Sukharev Andrey , Talyshev Alexey , Tikhonov Yuriy
Published: December 2021

Super Charm-Tau Factory (CTF), the project of e + e– collider with luminosity of 1035 1 cm–2/sec–1, is being developed in the Budker Institute of Nuclear Physics (Novosibirsk, Russia). The main requirements and parameters for the computing infrastructure of the future facility are discussed
Submerged Jet of a Conducting Fluid in the Presence of the Magnetic Field
Authors: Mullyadzhanov Rustam , Yavorsky Nikolay
Published: December 2021

We consider a steady flow of a viscous incompressible conducting fluid. New exact solution of the magnetohydrodynamic (MHD) equations is obtained, when the flow is induced by the point source of hydrodynamic momentum located at the end of a semi-infinite linear conductor with a set value of the electric current. The effects of the confinement of the current density and the loss of existence of the solution with the finite values of electric current and various values of the Reynolds number and the Batchelor number (magnetic Prandtl number) are found. The non-self-similar problem is considered, when the flow is induced by the point source of momentum, angular momentum, flow rate and electric current that are set at the origin. In this case, the first term of the asymptotic expansion of the velocity at the infinity is described by the exact solution of the Navier – Stokes equations of the submerged jet (Slezkin – Landau – Squire solution). We analyze the conservation laws. It is shown that the induced magnetic field reduces the intensity of the jet flow
Polarization Holographic Gratings on Polymer Dispersed Liquid Crystals
Authors: Zharkova Galina , Petrov Aleksandr , Streltsov Sergey , Khachaturyan Valentina
Published: December 2021

The formation of switchable polarization gratings and their properties are presented. The grating structures are created in polymer-liquid crystal composite by recording the interference pattern generated by two coherent laser beams with orthogonal polarization. The influence of the regime of formation, composition of composite and the azimuthal angle of the polarization of probe beam on the diffraction effectiveness of such grating are investigated. Electro-optical effects are studied, the possibility of the thermal-optical switching of grating are demonstrated
Between the Discursive and the Immersive – Editorial
Authors: Laurberg Marie , Schavemaker Margriet
Published: December 2021

How can exhibitions function as mediums for research? How can artistic research contribute to art museums? What is the research value of immersive exhibitions? What is the role of the sensory experience in gathering and disseminating knowledge in the museum? What is the function and position of public programs as curatorial models for research and knowledge production? And how does the public contribute to the museum’s knowledge production?
Discursive versus Immersive: The Museum is the Massage
Authors: Wigley Mark
Published: December 2021

We live in an age in which everyday life is suspended within countless overlapping flows of information. Each of these overlapping flows operates as an immersive environment and as a discursive system of detection, analysis and visualization. To put it simply: all Google users, which is to say all users or all humans, since we have been redefined as users and we’re only valuable in as much as we are users, are treated simultaneously as researchers and consumers. Perhaps it is time to rephrase Barbara Kruger’s truism I shop therefore I am, into I research therefore I am.
Visitor Voices Between the Discursive and the Immersive
Authors: Charman Helen
Published: December 2021

In December 2015, the Stedelijk Museum and the Louisiana Museum of Art convened a conference entitled “Between the Discursive and the Immersive – Research in 21st Century Art Museums.” Taking the Design Museum, London, as a case study, my Pecha Kucha explored how the museum’s public programs might be understood to create a discursive mode of visitor engagement, constituted through the interplay of visitor and institutional voices. This discursive mode can be encapsulated by the notion of a museum doing its thinking in public. Thinking in public provides a propositional space for critical engagement and reflexivity, and positions the museum as a forum for public engagement with design and its wider contexts. However, as suggested by the conference title and by a variety of other papers given over the two days, the museum also invites visitors to engage immersively with content, in particular through the curatorial strategies in the exhibition environment.
Narrative Theories and Learning in Contemporary Art Museums: A Theoretical Exploration
Authors: Sitzia Emilie
Published: December 2021

Stories are an integral part of our experience as human beings. As Roland Barthes put forward, narrative “is present at all times, in all places, in all societies; indeed narrative starts with the very history of mankind; there is not, there has never been anywhere, any people without narratives; all classes, all human groups have their stories….”[1] Narrative theories (in literature, media studies, psychology, or neurology) have explored the impacts of narratives on our ways of being, thinking, dreaming, and remembering. This article will explore the implications of narrative theories for learning in a contemporary art museum context.
Curating Education, Staging the CV: Learning at Former West
Authors: Mahlknecht Barbara
Published: December 2021

In the context of Former West: Documents, Constellations, Prospects—a long-term international research, education, publishing, and exhibition project (2008–2016) that “engages in rethinking the global histories of the last two decades in dialogue with post-communist and postcolonial thought” and employs a series of curatorial formats between the discursive and the immersive—a so-called “Learning Place” was conceptualized by theorist Boris Buden at the Haus der Kulturen der Welt (House of World Cultures), Berlin, in 2013. Almost two hundred students from international universities constituted the central part of the audience, present for seven days, twelve hours per day, of theoretical and artistic contributions by nearly fifty theorists, artists, curators, and activists through over thirty workshops and panel discussions. According to Buden’s concept, Learning Place aimed at a critical examination of the ideological construction of the CV through a provocative-pedagogical trick that refers to Viktor Shklovsky’s concept of “making strange.”
El cuento histórico para la enseñanza de la probabilidad en la educación primaria en Brasil
Authors: Oliveira Júnior Ailton Paulo de , Barão Karoline Marcolino Cardoso
Published: December 2021

Este estudio tuvo como objetivo investigar el aprendizaje probabilístico con un grupo de estudiantes de cuarto año de la escuela primaria en Brasil, tomando en cuenta situaciones que involucran conceptos básicos de probabilidad, como el espacio muestral y sus eventos, a través de la narrativa utilizada en una historia corta. “¿Sabías que los niños jugaban con el juego de baldosas hace mucho tiempo, en Francia?”. La Teoría de Situaciones Didácticas - TSD fue el soporte para la evaluación de la actividad de intervención, buscando el desarrollo de competencias y habilidades relacionadas con la probabilidad. Los resultados indican que los estudiantes fueron capaces de identificar los elementos históricos traídos a la narrativa y que la propuesta de juego propuesta por el Conde de Buffon, presentando conceptos elementales de probabilidad, sirvió como motivador y elemento para la aprehensión del conocimiento probabilístico. Indicamos que, en respuesta a la pregunta de investigación, los resultados obtenidos proporcionaron una fuerte evidencia de que las actividades contribuyeron a la enseñanza y el aprendizaje de la Probabilidad. Además, los resultados mostraron las dificultades experimentadas por algunos de los estudiantes en la adquisición de conocimientos, y los errores cometidos nos llevaron a pensar en diferentes enfoques para la apropiación...
Mitigations risk of trademark as credit bank guarantee
Authors: Usanti Trisadini
Published: December 2021

Abstract: The Efforts to minimize legal risk over brand certificate guarantees in banking practices by conducting a professional analysis of brands. The main thing that is done by the bank is to identify whether the rights to the mark meet the legal and economic requirements as a guarantee and the important is imposition of perfect pawn collateral institutions or fiduciaries then it cause the property rights is born and bank domiciled as a preferred creditor. The analysis on guarantee is the bank effort to ward off legal risk such as weakness of the alliance until not fulfilled the contractual terms or not perfect of collateral binding even the cancellation of the brand certificate. If this is not mitigated, it will be detrimental to the position of the bank as a creditor because the bank is only located as a concurrent creditor.Keywords: Trademark guarantee; Guarantee; Bank; Credit Bank.
Gestión y vida económica en las Cofradías y Hermandades del Antiguo Régimen: un ejemplo andaluz
Authors: Santos Gómez Manuel
Published: December 2021

En las siguientes líneas se aborda la gestión y vida económica de las cofradías del Antiguo Régimen a partir de un ejemplo concreto a nivel andaluz, una muestra representativa de las hermandades de la ciudad de Córdoba, especialmente las radicadas en la parroquia de San Andrés Apóstol. Para ello se profundizará en los ingresos y los gastos de estas corporaciones, dándonos numerosos detalles de su vida y finalidades, para concluir con la existencia de una gestión económica que buscase la mayor rentabilidad para cada una de estas instituciones.
Desarrollo de un dispositivo biomecatrónico adaptable al miembro superior humano para potenciación de ejercicios funcionales de acondicionamiento físico
Authors: Franco Vargas Sergio , Tovar Sánchez Javier , Arcos Hurtado Edgar , Bermeo Varón Leonardo
Published: December 2021

En este trabajo se presenta el desarrollo de un dispositivo biomecatrónico adaptable al miembro superior humano con doble funcionalidad, la primera es la de la prevención de enfermedades asociadas al sedentarismo a través de la potenciación de ejercicios funcionales de acondicionamiento físico, enfocándose principalmente en el fortalecimiento y musculación en las primeras fases posteriores a una lesión. La segunda es la de rehabilitación para personas con dificultades de movilidad en miembro superior, bien sea por causas naturales o accidentales, brindando en un sólo dispositivo portátil la capacidad de prevenir y rehabilitar enfermedades y/o lesiones del miembro superior. En el proceso del desarrollo del dispositivo se realizaron etapas de planificación, generación y evaluación de conceptos, diseño detallado, construcción, pruebas y ajustes, para finalmente llegar al prototipo que logró suplir de manera satisfactoria las fases de musculación y rehabilitación.
Satire or Fake News – A Hard-to-Spot Difference
Authors:   Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria, Kovacheva Ralitsa
Published: December 2021

The article presents the results of an empirical study based on data from a written exam among 85 second-year students of Journalism at the Faculty of Journalism and Mass Communication of the St. Kliment Ohridski University of Sofia. The study aims to illustrate the approaches and strategies used by students in dealing with a specific media message and, particularly, the possibility of satirical news-like texts to be perceived as fake news. Nearly 70% of the students defined a publication on a website called “No! News” as fake news, even though it is a well-known satirical website. The article discusses the students’ views on the concept of fake news, as well as differences between satire and fake news by making comparisons with existing research on the subject.
Popular Culture, Gender and State Socialism: Zhenata dnes Magazine
Authors:   St. Kliment Ohridski University of Sofia, Bulgaria, Vladimirova Julia
Published: December 2021

This article deals with the discourse of popular culture during the state socialism in Bulgaria and especially with the media aimed at female audiences. The Zhenata dnes (The Woman of Today) magazine is a starting point for the topic of what are the concepts of gender within socialism and are they changing. During the Cold War, there was a widespread belief that media were a direct reflection of narrow ideological norms. However, the example of Zhenata dnes clearly outlines the permeability and flexibility of topics related to the emancipation of women. The magazine openly publishes letters from readers, as well as analyses criticizing the government for the unhappy fate of women. Dissent, feminism and Western themes. The magazine was disliked and warned in the period 1966‒1980 that it had gone beyond the ideologically acceptable limits, but nevertheless it still exists. How did popular media targeting women create their image in the society of that time? How did the government want to build their image and how is it achieved in the magazine, thanks to the progressive positions of its editors and authors?
The Commercial Fourth Estate in the 2014–2019 Election Campaigns
Authors:   University of National and World Economy, Sofia, Bulgaria, Mihailova Katia
Published: December 2021

The paper presents results of media monitoring during the election campaigns held in Bulgaria between 2014 and 2019 – after the adoption of the new Electoral Code in 2014 until the last local elections in 2019. The main research question is to what extent the media as mediators in the election campaigns know, respect and comply with the legal regulations concerning their activities during such campaigns. The results outline the models of legal socialization of the Fourth Estate in the election campaigns. They also show patterns of compliance and violation of the legal framework. In addition, they reflect the way in which the media work to change the regulations in question. The research sample included between 117 and 180 media service providers in various election campaigns. There were representatives of all media subfields – traditional media, new media, yellow media, brown media, Prokopiev’s media, Peevski’s media, as well as Russian and American “propaganda media”. The period of research includes almost two full election cycles ‒ two parliamentary elections, two European elections, two local elections, and one presidential election which was held after the clear definition of the legal framework for media in the 2014 Electoral Code. No changes were made to this framework during the study and prior to the publication of this paper. This leads to conclusions regarding the electoral legislation and the regulation of the media system in the electoral process.
Hybrid Classroom – The Experience оf the 107th Khan Krum Primary School in Sofia, Bulgaria
Authors:   St. Kliment Ohridski University of Sofia, Bulgaria, Kalapish Danko , Petrov Philip
Published: December 2021

The COVID-19 pandemic imposed a quick introduction of distance learning for many students. In Bulgaria, the Ministry of Education and Science obliged schools to work synchronously with their pupils using video conference rooms. After the easing of the containment measures, regular classroom education was restored. However, the problems with quarantined students persisted. School principals had to solve new organizational challenges. The hardest and most frequent issue was the split of a given class into students present in school, and students learning online. The article introduces an organizational model of a hybrid classroom where teaching is carried out in a physical and an online classroom at the same time. The authors describe their experience with specific hardware and software used for the first time in Bulgaria for educational purposes. They also show their experience with the organization of traineeships for university students as primary school IT teachers using a hybrid classroom.
Trust as a Determinant of Success in Public Diplomacy
Authors:   Sofia University “St. Kliment Ohridski”, Sofia, Bulgaria, Kalinov Kalin
Published: December 2021

The article investigates the concept of trust as a factor for success in public diplomacy initiatives. It explores the field through the theoretical frame of persuasive communication. First, the evolution and connotations of the term trust are examined through a broad theoretical review. Subsequently, the applications and the meaning of the phenomenon in the field of public diplomacy are analyzed. The article probes into an academic debate which has been mostly neglected by the Bulgarian scientific community. It relates to increasing the effectiveness of diplomatic actions in the public sphere by strengthening the trust in the legitimate communicator. The presented theoretical perspectives can be relevant to researchers and practitioners alike.
Ebook Features in Mathematics Education
Authors:   ", Georgieva Evelina ,   St. Cyril and Methodius",   University of Veliko Tarnovo
Published: December 2021

This article presents a theoretical study of the ebook for teaching mathematics in a mixed environment, which became ubiquitous as a result of the COVID-19 pandemic. The paper shows the typical features of ebooks, which reveal the advantages and disadvantages of their use. The main opportunities for their development are presented, such as training techniques and additional support materials to improve the maths lesson. In literature, the ebook in mathematics education is considered in various forms and aspects, with the main advantage being their ability to illustrate dynamic mathematical learning content with the help of ICT, while respecting the principles of multimedia and the requirements for accessibility, ergonomics and visual design.
Prólogo
Authors: Pedró Francesc
Published: December 2021

En este número de la Revista Educación Superior y Sociedad la mayor parte de las investigaciones que aquí se publican recogen las vivencias y aprendizajes de un significativo número (91) de docentes investigadores que hacen parte de ese universo diverso y complejo que es la educación superior en América Latina. Consideramos que con estos materiales se pueden fomentar procesos de reflexión, al interior de las IES, sobre la necesaria renovación pedagógica que continúa desafiando tanto la calidad como la equidad en nuestros sistemas. Esperamos que las vivencias reportadas contribuyan a promover la reflexión sobre los procesos que atraviesan nuestras sociedades y sobre el rol que cumple la universidad en ellas. Rol que también nos interpela porque, pese a las devastadoras consecuencias que la pandemia ha ocasionado, nuestras universidades vienen asumiendo el desafío de rediseñar sus acciones y reformular sus estrategias como parte de su compromiso por un futuro sostenible y por mantener los esfuerzos en procura de un real acceso a la educación superior.
Approximate Valuation of Life Insurance Portfolio with the Cluster Analysis: Trade-Off Between Computation Time and Precision
Authors: Fojtík Jan , Procházka Jiří , Zimmermann Pavel
Published: December 2021

Valuation of the insurance portfolio is one of the essential actuarial tasks. Life insurance valuation is usually based on a projection of cash flows for each policy which is demanding computation time. Furthermore, modern financial management requires multiple valuations under different scenarios or input parameters. A method to reduce computation time while preserving as much accuracy as possible based on cluster analysis is presented. The basic idea of the method is to replace the original portfolio by a smaller representative portfolio based on clusters with some weights that would ensure the similarity of the valuation results to the original portfolio. Valuation is then significantly faster but requires initial time for clustering and the results are only approximate – different from the original results. The difference is studied for a different number of clusters and the trade-off between the approximation error and calculation time is evaluated.
The impacts of IPO financing and monetary policy on economic growth in Bangladesh: Evidence from a dynamic assessment
Authors:   Bangladesh Institute of Capital Market, Barua Suborna , Akter Mahmuda ,   Bangladesh Institute of Capital Market
Published: December 2021

Bangladesh is considered a fast-growing emerging economy and the new Asian tiger. The increasing need for capital funds in Bangladesh is largely met by banks, mainly due to the country’s underdeveloped nature of the stock market. Bank financing is assumed to be influenced by monetary policies, particularly, by bank rates adopted each year by the central bank of Bangladesh. On the other hand, while some studies stress the need for strengthening the debt and equity securities markets to support Bangladesh’s fast economic growth, debates swirl about whether or to what extent the stock market contributes to economic growth in the country. To address the understanding gap, in this paper, we examine the impact of capital financing through equity initial public offerings (IPO) and bank rate on the economic growth of Bangladesh. We use annual data from 1981 to 2019 and employ an autoregressive distributive lag (ARDL) framework to examine the long-run and short-run impacts of IPO financing and bank rate on GDP growth rate. Our findings suggest the existence of a long-run cointegrating relationship between IPO financing, bank rate, and GDP growth. We find that IPO financing does not have a significant long-run impact but shows only a one-period short-run positive impact on economic growth. On the other hand, bank rate shows a long-run negative and a one-period short-run positive impact on economic growth. Findings overall suggest that IPO financing does not significantly contribute to long-run economic growth while giving only a temporary boost. Further, increases in bank rate - as one would expect - depress economic growth in the long-run, while generating herd behavior immediately. Our findings stress the need for encouraging more quality IPO issuances, increasing the issuance size, and ensuring proper utilization of the funds by IPO issuers to make the capital market a key driver of economic growth.
TERAPI GIZI PADA ADENOCARSINOMA ESOPHAGEAL JUNCTION POST GASTRECTOMI PARTIAL DAN GASTROSTOMI FEEDING
Authors: Nur Husain Fatmawati , Bukhari Agussalim , Safitri Asrini , Syam Nurbaya
Published: December 2021

Intervensi nutrisi harus menjadi bagian penting dari pendekatan multimoda terhadap kanker kaheksia. Tujuan utama terapi nutrisi pada penderita kanker adalah mempertahankan atau meningkatkan status gizi sehingga dapat memperkecil terjadinya komplikasi, meningkatkan efektivitas terapi kanker (bedah, kemoterapi, radiasi), kualitas hidup dan survival penderita. Pria usia 60 tahun dikonsulkan dengan diagnosis Gastroesophageal junction adenocarcionma (GEJAC) dan malnutrisi berat (Subjective Global Assesment Skor C). Pasien memiliki riwayat asupan yang kurang dan perubahan konsistensi asupan selama 6 bulan dan memberat 1 bulan terakhir karena disfagia. Terapi nutrisi pre-operatif diberikan dengan target 2100 kkal secara bertahap melalui oral dan parenteral dengan protein 1,5 gram/kgBB ideal/hari. Pemberian nutrisi post-operasi dimulai bertahap melalui enteral (gastrostomi) dan parenteral dengan protein dinaikkan menjadi 1,7 gram/kgBB ideal/hari. Pada akhir masa perawatan terdapat perbaikan metabolik seperti albumin dan jumlah leukosit dari post-operasi hingga akhir masa perawatan. Penganan nutrisi perlu dilakukan pada pasien kanker yang akan menjalani operasi untuk optimalisasi kondisi pre-operasi dan memperbaiki klinis dan metabolik pasien post-operasi.
ASTAXANTHIN MENGHAMBAT PENURUNAN JUMLAH SEL LEYDIG DAN KADAR TESTOSTERON PADA TIKUS WISTAR JANTAN YANG DIPAPAR DENGAN ASAP ROKOK
Authors: Lie Andrew , Pangkahila Wimpie , Maker L.P. Iin Indrayani
Published: December 2021

Background. The exposure of cigarette smoke impacts negatively on Leydig cell count and testosterone level. Astaxanthin is known for its ability to neutralize free radicals far more potent than any other kind of antioxidant.

Research objectives. This research aims to prove the effect of Astaxanthin in inhibiting decrease of Leydig cell count and testosterone level in male Wistar rats exposed with cigarette smoke.

Methodology. The posttest only control group study design was conducted on 36 male Wistar rats, 12-16 weeks in age, with 200-210 grams body weight. Samples were randomly divided into two groups, consisting of a control group exposed with cigarette smoke and 0.5 ml of aquadest and a study group exposed with cigarette smoke and 0.1 mg of astaxanthin/200 gr BW daily for 30 days. On day 31, blood samples were taken to measure the testosterone level. Both testes were taken for Leydig cells count assessment. Comparative analysis was done to see any significant difference between the study and control group.

Research results. The results show that the mean number of Leydig cells and testosterone levels in the study group was significantly higher than the control group (p<0.01).

Conclusion. Oral astaxanthin administration inhibited the decrease of Leydig cell count and testosterone level in male Wistar rats exposed with cigarette smoke.

Key words: Astaxanthin, Testosterone, Leydig Cell, Andropause
TERAPI NUTRISI PADA KARSINOMA AMELOBLASTIK DENGAN KEMOTERAPI
Authors: Rabiah Rabiah , Bukhari Agussalim , Kesumasari Citra , Safitri Asrini
Published: December 2021

Karsinoma ameloblastik adalah tumor ganas epitel odontogenik yang sangat jarang terjadi, terhitung sekitar 2% dari tumor odontogenik. Tujuan utama terapi nutrisi pada penderita kanker adalah untuk mempertahankan atau meningkatkan status gizi sehingga dapat memperkecil terjadinya komplikasi, meningkatkan efektivitas terapi kanker (bedah, kemoterapi, radiasi), kualitas hidup dan survival penderita. Pria usia 59 tahun dikonsulkan dengan diagnosis karsinoma ameloblastik dan malnutrisi berat (Subjective Global Assesment Skor C). Pasien memiliki riwayat asupan yang kurang dan perubahan konsistensi asupan selama 4 bulan dan memberat 10 hari terakhir karena disfagia. Terapi nutrisi pre-kemoterapi  diberikan dengan target 1900 kkal secara bertahap melalui enteral dan parenteral dengan protein 1,5 gram/kgBB ideal/hari. Pada akhir masa perawatan terdapat perbaikan metabolik seperti deplesi system imun,albumin dan balance nitrogen. Penanganan nutrisi perlu dilakukan pada pasien kanker yang akan menjalani kemoterapi untuk optimalisasi kondisi pre-kemoterapi dan memperbaiki klinis dan metabolik pasien post-kemoterapi.