bluuebunny/crossref_metadata_2025 huggingface dataset:
CONSIDERAÇÕES PSICANALÍTICAS SOBRE O PROJETO DE LEI ESCOLA SEM PARTIDO
Authors: Sodré Marina , Dutra Carolina
Published: September 2021

A partir de uma leitura lacaniana, este trabalho tem como objetivo discutir a expansão do discurso da ciência na educação brasileira atual. Para tal, tomamos como ponto de partida a proposta do projeto de lei Escola Sem Partido. Este projeto de lei pretende instituir nos sistemas de ensino a proibição legal de qualquer conteúdo curricular que possa ser conflitante com as convicções morais dos pais, tratando-se da defesa da neutralidade em contraposição à suposta doutrinação político-ideológica do professor. A neutralidade da função do professor defendida pelo projeto Escola sem Partido nos parece se basear na pretensão do discurso da tecnociência de se livrar da enunciação. Se em Freud educação e civilização se confundem, indagamo-nos se é possível haver um discurso que não seja político-ideológico.
REFLEXÕES SOBRE O DIÁLOGO SOCIAL NO PROCESSO DE IMPLANTAÇÃO DO CAMPUS IFRJ-NITERÓI
Authors: Bensadon Ligia Scarpa
Published: September 2021

Este artigo parte da experiência no trabalho do IFRJ campus Niterói, em seu processo de implantação, trazendo à tona a reflexão sobre a importância da participação para a construção de uma instituição federal de educação, bem como na definição da sua identidade. Partimos dos dados obtidos em três pesquisas realizadas, contrastando com autores e fontes que abordam o tema da educação participativa. Foi observado aprofundamento no processo de diálogo social para o processo de implantação do campus, utilizando-se de diversos meios de comunicação e consulta com a sociedade, mas que, de outro lado, limitaram-se a um processo pontual no levantamento de demandas para a escolha de cursos na instituição.
LA ENSEÑANZA SUPERIOR NO APRENDE. UNA ESTRATEGIA PARA HACER UNIVERSAL A LA UNIVERSIDAD.
Authors: Sagüés Silva Alicia Fernanda
Published: September 2021

Los contenidos estudiados en la Universidad son solamente producidos por sí misma, perdiendo todos los saberes de los Pueblos Originarios que las habitan, especialmente en forma de estudiantes incluidos gracias a las propuestas más  progresistas. La endogamia académica impide aprender de los estudiantes e incorporar conocimientos y estrategias educativas propias de aquellos Pueblos. Aquí sintetizo 5 años de trabajo a cargo del Seminario de Investigación de la Carrera de Arquitectura de la Universidad de Los Lagos, donde entre el 35 y el 45 % de estudiantes pertenece a algún Pueblo Originario. Los saberes que ellos sistematizan bajo mi estímulo y orientación, son recogidos por sus propios entornos socio-culturales, enriqueciendo además a sus pares. Pero la Universidad aún no los incorpora.
INOVAÇÃO PEDAGÓGICA, DOCÊNCIA UNIVERSITÁRIA E O ENSINO REMOTO EMERGENCIAL NA UNIVERSIDADE: O SABER DE EXPERIÊNCIA NA DOCÊNCIA
Authors: Campani Adriana , Veras do Nascimento Navilta , Gomes da Silva Rejane Maria
Published: September 2021

A inovação pedagógica na universidade é um processo educativo de tensionamento, desequilíbrio, conflito e ruptura com as formas existentes de exclusão e homogeneização cultural. Nesse sentido, à docência universitária cumpre o papel importante em criar novas formas de produção e relação com o conhecimento saindo da condição solitária e expositiva do mesmo para o lugar de produção do saber de experiência. No saber de experiência do docente universitário podemos encontrar janelas abertas para o diálogo com os saberes culturais que configuram as novas formas de sociabilidades existentes na universidade.  Partindo desse princípio, o presente artigo objetiva abordar reflexões sobre o relato de experiência de uma docente universitária com o ensino on-line, no contexto do ensino remoto emergencial, evidenciando o saber de experiência como janelas abertas para uma docência inovadora.
Orientações e normas
Authors: Aleph Revista
Published: September 2021

Orientações e normas.
Editorial
Authors: Aleph Revista
Published: September 2021

Editorial.
CONTEXTOS DE FORMAÇÃO DOCENTE, PRÁTICAS PEDAGÓGICAS COTIDIANAS E INFÂNCIAS: UM CONVITE À COLETIVIDADE
Authors: Silva Perseu
Published: September 2021

Este texto surge da conversa com estudantes da graduação em Pedagogia da UFF e coloca em discussão os contextos de formação docente, as práticas pedagógicas cotidianas e as infâncias. Para isso, trago narrativas do meu processo de formação,incluindo experiências como docente dos Anos Iniciais do Ensino Fundamental, entendendo a educação democrática como prática necessária para a ruptura das estruturas de poder que nas escolas se reproduzem.
CORPO INFANTIL COMO PROFUSÃO DO SENSÍVEL NOS “ANOS DE CHUMBO” DO BRASIL
Authors: Alves Rodrigues Luciana
Published: September 2021

O objetivo do presente estudo é analisar o filme “O ano em que meus pais saíram de férias”, do diretor Cao Hamburger, lançado em 2006. Essa obra cinematográfica aborda, com sutileza e sensibilidade, um momento dramático da história brasileira – o período da ditadura militar. O filme é narrado na perspectiva de uma criança que sofre com a saudade dos pais e, ao mesmo tempo, vivencia experiências únicas em seu tempo de exílio. Nessa obra, o olhar infantil, os gestos e a linguagem corporal de um menino de doze anos foram elementos fundamentais na construção do filme, principalmente na escolha de procedimentos poético-estéticos que abrandaram as tensões históricas do período vivido pela narrativa. Diante disso, nosso foco de análise é o corpo infantil do protagonista, e elegemos David Le Breton (2016; 2019) como referencial teórico deste artigo por seus estudos referentes à antropologia das emoções e dos sentidos, que diz dos movimentos das coisas e das sensações de si mesmo em uma construção teórica que afirma que a condição humana é corporal, ou seja, que o corpo é profusão do sensível. Dessa forma, as experiências e vivências de Mauro, a criança protagonista do filme em questão, foram percebidas a partir de sua sensibilidade individual, que, de antemão, traz os vestígios de sua história pessoal e sua pertença social ao se deparar com o novo, o desconhecido.
CARTOGRAFIA AFETIVA DA EXPERIÊNCIA ESCOLAR: PENSANDO EM ESTRATÉGIAS DE ENFRENTAMENTO DOS IMPACTOS DA COVID-19 NA EDUCAÇÃO
Authors: Paz Beatriz , Bueno Marina
Published: September 2021

Resumo: A pandemia da Covid-19 nos impôs um contexto mundial causador de uma série de perturbações, tais como: luto, medo, dificuldades materiais, angústias, letargia, impotência, incertezas sobre o futuro, dentre outras. Tal contexto nos convoca ainda mais a buscar estratégias de cuidado e proteção psicossocial, de modo a mitigar os efeitos da crise sanitária. Este trabalho pretende realizar uma discussão em torno da Cartografia Afetiva, enquanto método de pesquisa e intervenção que, pautada num certo modo de olhar, escutar, acolher e agir com (ou intervir sobre) o que se passa em cada um e deste no encontro com o outro, pode vir a contribuir para a construção de um cuidado colaborativo na educação no contexto da pandemia da Covid-19. A pertinência do método cartográfico como estratégia de escuta-intervenção no campo educacional aqui debatida é fruto das análises feitas a partir de um projeto que foi desenvolvido em 2019 em escolas públicas da rede municipal de educação do Rio de Janeiro.
O DILEMAS DAS REDES E A MODULAÇÃO DOS COMPORTAMENTOS DOS USUÁRIOS: O QUE ISSO TEM A VER COM OS PROCESSOS DE APRENDIZAGEM?
Authors: Sepúlveda Denize , De Aguiar Xavier Sepulveda Yuri
Published: September 2021

Esse artigo tem por finalidade estabelecer algumas análises sobre o documentário “O Dilema das Redes” e sua relação com as modulações dos comportamentos dos usuários da internet. Defendemos que nesta  relação se estabelecem processos de aprendizagens que interferem nas visões de mundo das pessoas, influenciando a conscientização crítica dos sujeitos. Nossas considerações provisórias apontam para  a importância do papel da escola junto aes estudantes como forma de criar espaços de emancipação, para que possam tecer maneiras de enfrentamentos  diante de situações opressoras vivenciadas por jovens em redes sociais.
Aspectos nutricionais do amido da Maranta arundinacea L. na formulação de pães sem glúten
Authors: Andrade de Oliveira Nayara
Published: September 2021

Muitas espécies da flora brasileira são subutilizadas, incluindo a araruta (Maranta arundinacea L.), planta com rizoma rico em amido com alto valor nutricional de importância cultural para a região do Recôncavo da Bahia, Brasil. O objetivo deste trabalho foi analisar os aspectos nutricionais da inclusão do amido de araruta em pão sem glúten enriquecido com farinha de bagaço de laranja. Foram elaboradas três formulações de pães sem glúten: sem o amido da araruta (controle); e duas formulações teste: F1 com 100% de farinha de araruta e F2 com 33% de farinha de araruta, 33% de fécula de batata e 33% de farinha de arroz; e feita a comparação estatística entre estes três tratamentos, utilizando os seguintes testes estatísticos: Shapiro-Wilk, análise de variância e Tukey. Os resultados mostraram que a inclusão do amido de araruta em pães sem glúten alterou seu teor de umidade, aumentaram o teor de carboidratos e reduziu o teor de proteína; o teor de gordura foi baixo nas três formulações e todas apresentaram teores satisfatórios de fibras. Diante desses resultados, e à luz da literatura, conclui-se que a inclusão do amido de araruta na formulação de pães sem glúten enriquecidos com farinha de bagaço de laranja é uma alternativa nutricionalmente viável. O uso da araruta incentiva seu cultivo e a preservação dessa espécie na biodiversidade local, trazendo benefícios econômicos para a região, a inclusão da farinha de bagaço de laranja nos alimentos aumenta seu valor nutritivo e evita seu desperdício e acúmulo no ambiente.
The impact of risks in limiting E-commerce
Authors: Al Salamat Wasfi , Elian Maisaa
Published: September 2021

Most E-commerce transactions nowadays are electronically executed via well-known internet websites (Amazon, Alibaba, eBay, and others). Online sales in the Middle East, including Jordan, are estimated to count 2% of the overall retail sales, that is too much lower than the 15% in developed markets (Mehta & Bhandari, n.d.); and online sales in Jordan are still limited (Statista, 2020). Therefore, this study comes to determine the threats limiting E commerce in Jordan. The services sector accounts for about two thirds of the Jordanian economy and the insurance sector is considered an important component of it (Ghazal, 2015). The problem is to what extent threats from risks accompanied with E-commerce limit it from the viewpoint of Jordanian insurance companies’ employees. Five (5) insurance companies out of twenty-five (25) are randomly selected for analysis and a questionnaire is conducted according to a psychometric method for data collection. The results show that perceived ease of use, perceived usefulness, and perceived risk with products/services are the main effective factors for predicting transaction loss, while delay time is significantly affected by perceived ease of use and perceived risk with product/service. Policymakers can rely on the results of this study to avoid the risks facing online shopping in Jordan and enhancing it. This study contributes to the literature by reducing the dearth of previous research regarding the determinants of threats and risks limiting online shopping and E-commerce in emerging markets.
A rare case of Brugada syndrome induced by hyperglycemia
Authors: Knopp Brandon , Pierce Bailey , Muppala Vishnu
Published: September 2021

Brugada syndrome is a rare genetic disorder of the cardiac sodium channels associated with an increased risk of sudden cardiac death. It is characterized by an electrocardiogram (EKG) showing a right bundle branch block with an elevation in the ST segment. This condition is associated with mutations in several pathologic genes including the most notable mutation in the SCN5A gene, which encodes for a voltage-gated cardiac sodium channel. The Brugada pattern on EKG can be spontaneous but can also be induced by a variety of etiologies including fever, electrolyte abnormalities, increased vagal tone and drugs such as sodium channel blockers, calcium channel blockers, tricyclic antidepressants and alcohol. One uncommon cause of Brugada syndrome is hyperglycemia. Of particular importance in diabetic patients, hyperglycemia can induce chronic cardiovascular complications as well as acute cardiac events via the induction of the Brugada pattern on EKG. We present a case of a 21-year-old non-insulin compliant diabetic man presenting to the Emergency Department with diabetic ketoacidosis (DKA) who exhibits the Brugada pattern EKG prior to developing ventricular tachycardia followed by cardiac arrest. The patient’s condition was induced by prolonged hyperglycemia in the setting of DKA with relatively mild electrolyte and pH abnormalities. Herein, this case is presented to highlight the Brugada pattern leading to cardiac arrest as a potential consequence of hyperglycemia and inform physicians on its incidence.
Severe immune thrombocytopenic purpura after SARS-CoV-2 vaccine
Authors: Cooper Katherine , Switzer Bradley
Published: September 2021

Immune thrombocytopenic purpura (ITP) is a rare hematologic condition through to affect 3.3 in 100,000 adults per year in the United States. Many cases of immune thrombocytopenia are diagnosed incidentally with laboratory tests that reveal low platelet count, without a clear cause. However, when platelet counts are very low, patients may show signs of bleeding. Here we present the case of a 24-year-old female with mucocutaneous bleeding ten days after receiving her first dose of SARS-CoV-2 vaccine, who was subsequently found to have severe thrombocytopenia. Extensive work up for new thrombocytopenia was unremarkable suggesting a diagnosis of ITP, potentially secondary to vaccination. Empiric treatment with glucocorticoids was initiated without response prompting the use of intravenous immunoglobulin G. The patient was discharged on hospital day five with a platelet count over 20,000 platelets per microliter. In summary, ITP is a potential sequela of the SARS-CoV-2 vaccine, and otherwise healthy young individuals may be at risk for hematologic side effects.
Thermal process for magnesium production with Al-Si-Fe from coal fly ash: Thermodynamics and experimental investigation
Authors: Yu Q.-C. , Deng Y. , Yin S.-B. , Li Z.-Y.
Published: September 2021

Dumping or disposal of fly ash causes environmental pollution and huge waste of valuable metals. In this work, carbothermic reduction of fly ash under normal pressure to produce Al-Si-Fe alloy, and thermal reduction of magnesia to produce magnesium in vacuum with Al-Si-Fe alloy were investigated. In addition, the surface morphology and composition of Al-Si-Fe alloy and magnesium were studied by means of SEM-EDS and XRD. Based on the thermodynamic analysis, it was found that AlN and SiO2 lowered down the reduction temperature of SiC and Al4C3, respectively. Increase of temperature and decrease of vacuum degree promotes the thermal reduction of magnesia. Results showed that the recovery rate ranked Fe, Si, and Al in a descending order. The evaporation loss of gaseous SiO and Al2O reduced the recovery of Si and Al. Al-Si-Fe alloy containing 33.12% Al, 48.73% Si, and 6.41% Fe is obtained under the optimal conditions. Magnesium with the content of 94.87% is prepared using the obtained Al-Si-Fe alloy as a reductant. The nucleation rate is less than the growth rate during the condensation of magnesium vapor.
Intelligent modeling method of energy hub based on directed multi-graph
Authors: Cai Qingsen , Luo Xingqi , Gao Chunyang , Zhao Peiyu , Wang Peng
Published: September 2021

An energy hub, consisting of a combination of electricity, heat power, cooling power, natural gas, and other energy sources, is considered a key component of the energy internet. It requires quick and accurate optimization and control as well as a standardized and programmable model. This study proposes an intelligent modelling method based on a directed multigraph. This method starts from an input-output model and then establishes a directed multigraph in which a vertex indicates energy and an edge indicates energy conversion equipment and its parameters. Then, an adjacency matrix is obtained by processing and simplifying the directed multigraph. This adjacency matrix is searched using an intelligent algorithm to obtain the coupling matrix model of the energy hub. A hydrodynamic laboratory consisting of electricity, natural gas, heating, and cooling energy is used as a case study to verify the reliability and accuracy of the modelling process and to provide standardized data for deep learning uses in the energy internet. The obtained results show that the proposed method can quickly and effectively establish the energy hub model. This method is also effective when an energy storage device is added to or removed from the energy hub.
Micro-modular air driven combustion nozzle: Experimental and numerical modelling studies towards optimal geometric design
Authors: Dostiyarov Abay , Sadykova Samal
Published: September 2021

Experimental and numerical modelling studies on optimized design of micro-modular air driven combustion nozzle have been developed. Moreover, optimal angle of outlet swirler (vortex generator) connected in series with the nozzle has been analyzed in the context of minimization of NOx in the flue gases. Numerical modelling by ANSYS verifying the experimental data has been carried out. It has been established that an angle of about 20? of the outlet vortex generator has been able to assure optimal flame length and combustion efficiency.
Influence of twisted tape insert on the coolant flow characteristics in swirled film cooling
Authors: Ademane Vashista , Kadoli Ravikiran , Hindasageri Vijaykumar
Published: September 2021

The present paper discusses film cooling behavior through numerical simulation in the presence of a twisted tape insert inside the film hole. The twisted tape insert imparts a swirl to the coolant flow. Coolant swirl intensity is controlled by varying the pitch of the twisted tape resulting in swirl numbers of 0.0289, 0.116, and 0.168. The film cooling performance is evaluated using area-averaged effectiveness and heat transfer coefficient for blowing ratios of 0.5, 1.0, 1.5, and 2.0. Results revealed a significant amount of improvement in averaged effectiveness with the addition of swirl. Coolant swirl predominantly modifies the jet trajectory resulting in a reduced jet penetration and increased lateral expansion. Further investigation on the effect of twisted tape thickness on the coolant distribution has been found to be negligible. Pressure losses occurring due to the insertion of twisted tape inside the film hole is evaluated through the coefficient of discharge which indicated the necessity of higher pumping power than the film cooling case with no-swirl.
Investigations of non-linear induction motor model using the Gudermannian neural networks
Authors: Sabir Zulqurnain , Raja Muhammad Asif , Baleanu Dumitru , Sadat Rahma , Ali Mohamed
Published: September 2021

This study aims to solve the non-linear fifth-order induction motor model (FO-IMM) using the Gudermannian neural networks (GNN) along with the optimization procedures of global search as a genetic algorithm together with the quick local search process as active-set technique (GNN-GA-AST). The GNN are executed to discretize the non-linear FO-IMM to prompt the fitness function in the procedure of mean square error. The exactness of the GNN-GA-AST is observed by comparing the obtained results with the reference results. The numerical performances of the stochastic GNN-GA-AST are provided to tackle three different variants based on the non-linear FO-IMM to authenticate the consistency, significance and efficacy of the designed stochastic GNN-GA-AST. Additionally, statistical illustrations are available to authenticate the precision, accuracy and convergence of the designed stochastic GNN-GA-AST.
Heat transfer analysis of double tube heat exchanger with wavy inner tube
Authors: Hasgul Ceren , Cakmak Gulsah
Published: September 2021

The effect of the design on the heat transfer is numerically investigated by using the wavy inner tube in a double-pipe heat exchanger. A wavy inner tube was used in the design to give a turbulent effect to the fluid along the inner tube of a double tube heat exchanger. In numerical study, ANSYS 12.0 Fluent code program was used, and the basic protection equations were solved for steady-state, 3-D and turbulent flow conditions. The study was examined at Reynolds numbers ranging from 2700-5300. The obtained results were compared with the experimental data performed under the same conditions. As a result of this comparison, after it was seen that the results obtained from the numerical analysis and the experimental results were compatible with each other, the wave number of the inner tube was increased and analyzed with the ANSYS fluent code program. When the data obtained as a result of the analyzes were evaluated, it was seen that the highest heat transfer was obtained from the 16 wave tube heat exchanger, which has the highest number of waves and under counter flow conditions. The increase in heat transfer increased by 270% compared to the straight tube.
Correlation model for fiber diameter of the electro-spun membrane using KGM (1,N) model for nanofiltration
Authors: Thayumanavan Menaka , Srinivasan Andy , Arumugam Senthil
Published: September 2021

Nanofiltration is an important application for electro-spun fiber as it is well characterized by fine fiber diameter, huge density, high penetrability, and flexibility. In this paper, the poly-acrylonitrile fiber diameter is determined experimentally by varying four factors such as voltage, flow rate, the distance between spinneret and collector, and mass fraction in the electrospinning process. The fiber diameter is measured through SEM analysis. A highly accurate kernel-based non-linear multivariable grey model, KGM (1, 1) model is used for the prediction of nanofiber diameter for filtering particulate less than 500 nm. This is proved to be better when compared to the grey model first order one variable and multivariable grey model. Based on simulated outcomes, filtration membranes are prepared and tested for filtration efficiency for the airborne particles relating its air permeability, porosity and quality factor.
A theoretical model for social licence to operate for the mining sector in South Eastern Europe
Authors:   , Proctor Mark
Published: September 2021

This thesis investigates the methodological narrowness used to interpret social license failure in the mining sector. Using a mixture of Actor-Network Theory (ANT), Poststructuralist theory, Political Settlement theory and knowledge from the mining industry, it investigates the core premises of existing models of social license, finding them lacking. It details challenges facing the mining sector, highlighting a disjoint operationally at a temporal level and spatial level between communities and industry. Representing the inability of the sector to address social licence failure as evidence of ontological narrowness in assessments of local community consent, it demonstrates it is the totality of relationships around the mine project that is critical. A new model predicated on a Political Settlement framework at a meso level, is created and populated as a visual model with icons. These icons, make up within the Social License Settlement Model (SLSM), a representation of the dynamic balancing act of relationships defining social license. The model is set in Thirdspace, reflecting that different participants have different perceptions of space, time and symbolism. The model was tested by showing how a social license was not solely about the mine and local communities but wider relationships. An examination of Rosa Montana mine project failure in Romania as it joined the EU, demonstrated that the process of ascension caused aspects of civil society to change, making securing a social license more difficult. Field research in Serbia, in a similar position in 2018 to Romania in terms of EU membership when Rosa Montana failed, with State mine regulator officials, private sector mine development actors and people living adjacent to mining projects. Similar issues with civil society appear likely to develop in Serbia, driven by the introduction of transnational environmental regulation. The SLSM captures how this might be avoided and mitigated.
Experimental studies of the properties of metal dust
Authors: Dikova Lyudmila V. , Samarskaya Natalya S.
Published: September 2021

Introduction. The issues of ensuring the environmental safety of metalworking industries are still very relevant. Moreover, the primary role in these issues is played by the protection of atmospheric air from the emissions of industrial enterprises in this industry. For the successful implementation of measures aimed at ensuring the environmental safety of atmospheric air, it is important to study in detail the composition and properties of the emission components.
Problem Statement. The aim of the study is to analyze the entire range of modern methods for measuring the parameters of the properties of metal dust, as the main component of emissions from metalworking industries; to select the method of experimental research; to conduct a dispersion analysis of metal dust particles.
Theoretical Part. As a rule, the productivity of experimental studies of the parameters of the properties of pollutants largely depends on the methods that were used in the performance of the work. To solve these problems, the authors have analyzed modern methods for measuring the parameters of the properties of metal dust. The choice is made according to the basic principles: relativity, relevance, completeness, labor intensity. The conditions for the final results of the research, their accuracy and reliability, the conditions for the terms, resources, technical means of research used, and the positive and negative aspects of each of the methods under consideration are also taken into account.
Conclusion. The article presents the result of the choice of the research method and the results of experimental studies of the properties of metal dust.
Review of Latest Developments in PEM Fuel Cell Research with Application to Hydrogen Powered Drones
Authors: B. Day  , A. Pourmovahed
Published: September 2021

Fuel cells are becoming an increasingly more enticing option to power drones for extended use applications. This is because under certain conditions, fuel cell systems are able to more efficiently store fuel and, therefore, energy compared to standard battery options. This reality has been proven through multiple research efforts and is reviewed in this paper. It is necessary to review the current state of PEM fuel cell technology for drone applications to determine the extent of its limitations and feasibility. For this reason, the latest developments in low temperature and high temperature PEM fuel cells were studied including their limitations and sensitivity to contamination with a focus on drone applications. It has been reported that hydrogen powered fuel cell systems are more efficient than conventional battery applications when the energy content is higher than 4 MJ. A hybrid fuel cell and battery powertrain is preferred for the purpose of counterbalancing the deficiencies of both individual cases. Currently available products were explored, and it was found that there are fuel cell systems available that are capable of powering drones in excess of 23 kg (50 lb).
Synthetic Series of Electricity Generation through a Photovoltaic System by using Different Panel Temperature Models
Authors: A. H. M. Stach  , D. P. Neto  , M. A. Vidal  , O. C. N. Souto  , B. Silva  , E. G. Domingues
Published: September 2021

The electric energy produced by photovoltaic systems is a function of several variables that present random behavior, such as solar irradiance, ambient temperature, wind speed, and relative humidity. Several models describe the energy produced by these systems, which reflect the various factors that influence the generation and how significant these influences are. In this way, the present work aims to compare some panel temperature models and the electrical energy produced from a photovoltaic system located in the Midwest of Brazil. The applied methodology aims to evaluate the expected averages and standard deviations of the monthly synthetic series of generated energy to identify the main random variables that influence the electric generation. The results indicate the model that best describes the physical system concerning the randomness of the variables involved, the photovoltaic technology, the location, and the measurement period.
Quantification of CO2 emission reductions from energy efficiency actions and solar photovoltaic generation at the Federal Institute of Education, Science, and Technology of Goiás
Authors: M. A. Vidal  , A. F. Faria  , A. H. M. Stach  , D. P. Neto  , L. S. Pinto  , A. G. Pinho  , E. G. Domingues
Published: September 2021

In 2016, the Brazilian Agency of Electric Energy launched a public call for research and development projects to reduce barriers to implementing energy efficiency projects and own electricity generation. One objective of this public call was to encourage pilot projects at the Brazilian public higher education institutions. In this context, the Federal Institute of Education, Science, and Technology of Goiás has approved the research project, entitled “Energy efficiency and mini generation at the Federal Institute of Education, Science, and Technology - IFG.” The project consists of implementing energy efficiency actions and installing photovoltaic distributed generation (mini generation) in twelve of the fourteen IFG campuses. The main objective of this work is to quantify the CO2 emission reductions from the project through the methodologies used by the United Nations Framework Climate Change Convention for projects under the Clean Development Mechanism. The emission reductions over the project lifetime was estimated at approximately 37,400 tCO2 equivalent, evidencing the environmental benefit to be provided by the referred project.
Survey on the Advancements of Dielectric Fluids and Experiment Studies for Distribution Power Transformers
Authors: S. Carvalhosa  , H. Leite  , F. Branco  , Carlos A. Sá  , António M.  Moura  , Ricardo C. Lopes  , Mário Soares
Published: September 2021

The main objective of this work is to summarize the most commonly used dielectric fluids in the power distribution transformers, as well as to discuss what are the latest and the rationale behind those trends. The favorable and unfavorable reasons for any choice behind each of those dielectric fluids will be discussed. Additionally, this work also advances the power distribution transformers health index most commonly used to assess the condition of the transformer.
Experimental work over borehole filling material to reinforce characterization and model validation of Ground Heat Exchangers
Authors: A.J. Extremera-Jiménez  , D. Eliche-Quesada  , C. Guitérrez-Montes  , F. Cruz-Peragón
Published: September 2021

Ground Heat Exchangers (GHE) are part of Ground Source Heat Pumps (GSHP), employed as a renewable source in air conditioning systems. Models implemented are quite in tune to the real behaviour, enabling reliable designs and optimization, once several thermal properties of the surrounding soil and borehole are known. Since some values of those properties are evaluated from experiments, other ones are selected and approached from data base, leading sometimes to poor reproductions, due to the lack of their specific knowledge. This work demonstrates the effectiveness of the experimental evaluation of the filling material properties in a vertical GHE, to guarantee more reliable values to model its thermal behaviour: moisture content, density, and both thermal capacity and conductivity. Experiments must be easy and fast to perform, because their values must be known previous to the GSHP design. In addition, an identification process over a numerical model has been developed. In order to check its consistency, results have been compared with those determined experimentally. As well as a high model accuracy, it has been demonstrated the importance of the presented assays to be included in the previous experimental work to the design step of a GSHP system, providing a valuable borehole characterization.
Comparison of the Thermal Performance of Mineral Oil and Natural Ester for Safer Eco-Friendly Power Transformers
Authors: Sandra Couto  , Elisabete M. Ferreira  , Diogo Sá  , Catarina Corte-Real  , Pedro Lima  , Ricardo C. Lopes  , Artur Costa  , Carlos A. Sá  , Pedro Monteiro  , Mário Soares
Published: September 2021

At present, most of the worldwide transformer fleet uses mineral oil as insulation fluid. However, the use of natural ester is playing an increasing role as safer and eco-friendly alternative to mineral oil. From the utilities’ perspective, the change in the mineral oil paradigm can be approached by replacing their assets by new eco-friendly transformers or refurbishing their assets, substituting only the insulating fluid. To make an informed decision, guidelines indicating how a transformer designed for mineral oil would behave when operating with natural ester, are of paramount importance. In the present research, temperature rise tests were carried out in a 15MVA ODAF core-type power transformer, under different operating conditions. Tests were run for mineral oil as insulating fluid and subsequently repeated for natural ester. To gain further insights on experimental results, thermal modelling of the transformer under the same test conditions was carried out, using Thermal-Hydraulic Network Models and Computational Fluid Dynamics techniques. From the present work it was found that the relationship between the thermal behaviour of the transformer using natural ester or mineral oil is not simple as it depends on the operating conditions of the transformer and on the geometry of the windings.
Design of an active pitch control for small horizontal-axis wind turbine
Authors: J. Vilà  , N. Luo  , L. Pacheco  , T. Pujol  , J.R. Gonzalez  , I. Ferrer  , A. Massaguer  , E. Massaguer
Published: September 2021

The installed power capacity from small wind turbines would rise in case of having higher efficiency values. The performance of these devices is very sensitive to wind conditions, especially to wind gusts and turbulence. Performance extracted from small-scale wind turbine datasheets show large variations of power output between turbulent and non-turbulent sites and often the installation in intermittent wind sites is discouraged. The use of blades with fixed positions is a clear drawback of small wind turbines. Here, we propose a design of a smart active pitch control to increase the energy generation of micro-wind turbines (< 5 kWp). The design consists of a simple mechanism that allows the rotation of the blades controlled by a low cost peripheral interface controller. The possibility to orientate the blades so as to maximise the power output at all wind conditions will increase the performance of this small wind turbines. The design is robust and economical, which will increase its potential adoptability rate by the end-user.
Fast frequency oscillations detection in low inertia power systems with excessive demand-side response for frequency regulation.
Authors: Leo Casasola-Aignesberger  , Sergio Martinez
Published: September 2021

The reduction in inertia present in electric power systems due to the increase in renewable generation interfaced with power converters presents various challenges in power system operation. One of these challenges is keeping the frequency of the system within acceptable bounds, as the reduced inertia allows faster changes in frequency. A possible way to mitigate this effect is to introduce a certain degree of frequency response in the demand side, in such a way that a loss in generation leads to a decrease in the demanded power, levelling the generation-demand balance. In this paper, one limitation of this approach is analysed, specifically the case where the demand response is excessive to the system inertia and demand, producing fast frequency oscillations. A scenario where this happens, on a simulated islanded system based on the electric power system of the island of San Cristóbal, in Galápagos (Ecuador), is studied, and a method of detecting these oscillations is proposed, as a first step to develop an appropriate response to them.
Management of logistics and marketing behavior of innovation clusters in territorial communities in the context of digitalization of society and the online market
Authors: Lozhachevska Olena , Navrotska Tamara , Melnyk Olga , Kapinus Larysa , Zos-Kior Mykola , Hnatenko Iryna
Published: September 2021

The article considers the process of improving the management of logistics and marketing behavior of innovation clusters in territorial communities in the context of digitalization of society and the online market. Attention is focused on the need for territorial communities to form an institutional environment favorable for the development of innovation clusters. It is noted that the best synergetic effect from the functioning of innovation clusters is achieved mainly in a post-industrial economy with a supercompetitive environment.
Corporate social responsibility: comprehensive analysis
Authors: Endovitsky Dmitry , Nikitina Larisa , Borzakov Dmitry
Published: September 2021

The article presents the results of the study conducted by the authors on the assessment of the progress of the corporate social responsibility of Russian companies in various industries on the basis of public information. The authors have developed a method of rapid assessment of the progress of corporate social responsibility, distinguished by the composition of indicators presented in public nonfinancial reporting, harmonized with the requirements of Global Reporting Initiative (including GRI G4 and GRI Standards) and available for calculation and interpretation by a wide range of stakeholders, which allows conducting a review diagnostics of the dynamics of responsible practices and comparative analysis of companies.
Pre-Service Teachers’ Perception and Vision about TPACK and Its Implementation
Authors: Ringotama Arrizalu Arsa
Published: September 2021

The need for educators to integrate the use of technology in the classroom is growing for the past few years. However, previous studies indicated that the use of Information and Communications Technology (ICT) is still at a low level of what the education program requires. Furthermore, it seems that in the field of language education, there is limited research focusing on pre service teachers (PTs). Therefore, to address this gap, this paper aims at investigating how the pre service teacher's understanding of the TPACK principle and how they will apply TPACK in their classroom. This mix-method study is using TPACK questionnaire and interview through a random sampling of 68 pre-service teachers of English Education Department of UNS. Furthermore, the results revealed that most of the participants understood the concept of TPACK well, and they also had various ways to apply it in their classroom. It is expected that knowing pre service teachers' (PTs) perceptions about TPACK in teaching and learning process that can be beneficial for both English Education Department programs and PTs, such as understanding the PTs' teaching abilities, development of the use of technology in teaching by pre service teachers in order to improve teacher department programs itself to develop the teaching practice with the support of technology. In addition, this study has implications for experts interested in the development and assessment of pre service teachers' understanding of teaching with technology.
A CONCEPTUAL FRAMEWORK FOR CUSTOMERS’ LOYALTY IN MOBILE LOYALTY PROGRAMMES
Authors:   Open University Malaysia, Menara OUM, Block C, Kelana Centre Point, Jalan SS 7/19, 47301 Petaling Jaya, Selangor, Malaysia, Seridaran Sharlini , Mohd Noor Mohd Nazri ,   Open University Malaysia, Menara OUM, Block C, Kelana Centre Point, Jalan SS 7/19, 47301 Petaling Jaya, Selangor, Malaysia
Published: September 2021

The increasing number of academic studies on customer loyalty shows the evolution of customer behaviour and the diversity of business offerings. The main purpose of this study is to examine existing academic pieces of literature. The articles discovered are from the last ten years and elaborate on the importance of customer loyalty within the established mobile loyalty programmes. As businesses evolve, the importance of developing long-term relationships with customers becomes increasingly important. This explains the recent trend of loyalty programmes in other industries. This paper aims to establish a conceptual framework that focuses on customer loyalty. Furthermore, the Theory of Planned Behaviour is used as a core element to better understand customers’ intentions to accomplish a certain behaviour in the hope that the actions favour businesses. Customer attitude, subjective norms, and customer satisfaction were identified as common antecedents in the literature. The recommended framework in this study may serve as a reference point for practitioners looking to improve current marketing strategies, particularly those focusing on mobile loyalty programmes. This is done to keep businesses up to date on current needs and trends.
A CONTENT ANALYSIS ON DIVERSITY AND PERSON WITH DISABILITIES IN CSR-AWARDED COMPANIES IN MALAYSIA
Authors:   Faculty of Business and Management, Universiti Teknologi MARA 15050 Kota Bharu, Kelantan, Malaysia, Maznorbalia Anisa Safiah , Ismail Zurina ,   Faculty of Business and Management, Universiti Teknologi MARA 15050 Kota Bharu, Kelantan, Malaysia, Hussein Zuhal ,   Faculty of Business and Management, Universiti Teknologi MARA 15050 Kota Bharu, Kelantan, Malaysia
Published: September 2021

Diversity is a concept that includes individuals from different categories and centrally aims at creating an inclusive community that values and utilises all members' talents. Diversity in the workplace has long been recognised as beneficial to the organisation’s whole performance. Apart from creating an inclusive environment, having a diverse workforce means having a different set of skills, ideas, attitudes, knowledge, and thus giving a higher chance for an organisation to be in a competitive advantage. Despite all the advantages, persons with disabilities (PWD) as one of the diversity categories have always been excluded from entering the labour market. Therefore, the aim of this study is to do a systematic empirical investigation on PWD’s employment within the organisations by examining the annual report of the CSR-awarded organisations in Malaysia to evaluate how far these organisations are reporting their diverse workforce and accepting the inclusion of PWD in the companies. The quantitative content analysis method was used in this study. 14 published annual reports of CSR-awarded companies from the year 2019 were selected as a sample. Employees with PWD were recorded by two companies, with percentages of 0.18 percent and 0.05 percent, respectively. The result shows the employment data on disability among companies that have won CSR awards in Malaysia are scarce. The companies tend to place more emphasis on other diversity categories, especially on gender and age group. It is suggested for future research to explore the employment of PWD from the perspective of corporate social responsibility since anything related to PWD should be addressed through social imperatives.
ZUR KOLLEGIALITÄT DES BISCHOFSAMTES IM LICHTE DER COMMUNIO-EKK LESIOLOGIE DES ZWEITEN VATIKANISCHEN KONZILS
Authors: VIK János
Published: September 2021

The collegiality of the episcopate was a particular concern of the Second Vatican Council. Consequently, ordination always integrates the individual bishop into the college of bishops, so that the episcopal authority conferred on him personally can only be exercised as a member of this college. Through the exercise of the collegiality of the bishops, the synodality of the churches is also expressed. In this context, it can be stated that for centuries the universal Church understood itself as a community of the many local churches of equal theological rank, which were in communion with one another. In the first three centuries, the primacy of Rome in the communion was much more strongly connected with the entire Roman community and not with a person or an office. In the West, a new form of ecclesiastical self-understanding and self-realization established itself in the fifth century, in which the bishop of Rome with his office increasingly detached himself from his own church.
This ultimately led to the development of a centralised papal church, which was predominant in the second millennium. Since the Second Vatican Council, the Pope has once again been seen primarily as the bishop of a local church, and only from there as the bearer of primacy, and therefore he remains visibly and concretely inserted into the collegiality of the bishops in the service of the synodality of the churches.
La orientación educativa como campo de intervención: origen, sentidos y perspectivas
Authors: Barletta César Martín
Published: September 2021

Este artículo intenta contribuir con los estudios acerca de los orígenes de la orientación educativa en Argentina y su contexto de surgimiento, justificación e implicación como un saber especializado, diferenciado y como práctica profesional. Para ello realizaremos la presentación, análisis y descripción de un conjunto de discursos que, en las dos primeras décadas del siglo XX, comenzaron a delimitar un vasto campo de intervenciones atravesado por un conjunto de prácticas, saberes y posiciones profesionales heterogéneas. Definiremos a la orientación educativa como campo de intervención, exploraremos los orígenes del término y los primeros acuerdos conceptuales que se realizan en Europa y Estados Unidos con la intención de diferenciar los alcances de la orientación en las escuelas y fuera de ellas.
A Covid járványról komplexitás-szemüvegen keresztül
Authors: VITRAI József
Published: September 2021

Bevezetés

Tavaly augusztusban — illetve idén januárban — két kutatócsoport szokatlan módon vette szemügyre a járványt: a rendszertudomány ismereteit hasznosító komplexitás-szemüvegen keresztül.

Vélemény

Minthogy a komplex rendszerek viselkedése alapvetően kiszámíthatatlan, a védekezéshez szükséges erőforrásokat, intézkedéseket ennek megfelelően szükséges tervezni és biztosítani. Így a nem előre látható eseményekre is tekintettel érdemes egészségügyi, gazdasági és szociális tartalékokat, kapacitásokat képezni, továbbá célszerű gyors intézkedéseket megengedő jogszabályi kereteket előzetesen kialakítani és így tovább.

A járvány komplex rendszerként való értelmezése rávilágít arra, hogy a korábbitól eltérő irányítási mechanizmusok szükségesek. Az egyidejű és több szektort érintő döntéseket sokféle szaktudást felhasználva, a valós helyzet és a korábbi tapasztalatok alapján kell gyorsan meghozni, figyelemmel az intézkedések bizonytalan hatására. A jövőbeli járványok megelőzéséhez, hatásuk mérsékléséhez újszerű döntéselőkészítő mechanizmusokat, monitorozó és értékelő rendszereket kell kiépíteni.

A járvány arra is felhívta a figyelmet, hogy az emberi tevékenység a Földön oly mértékben meghatározóvá vált, hogy a környezet önfenntartó egyensúlyának megbontásával a klímaváltozás, a levegőszennyezés, a víz- és élelmiszerhiány mellett globális járványok révén is veszélyezteti az emberiség létét.

Következtetés

A Covid-járvány komplex sajátosságainak megértéséhez és az eredményes védekezéshez nélkülözhetetlen feltenni a komplexitás-szemüveget. A sikeres és összehangolt védekezéshez elengedhetetlen, hogy valamennyi érintett tisztában legyen a járvány komplex természetével. A komplexitás felismeréséhez széleskörű ismeretterjesztő kampány és hiteles kommunikációs források működtetése, illetve a képzés és továbbképzés ilyen irányú fejlesztése vezethet. A globális környezet egyensúlyának megbomlása jelentette veszély elhárításához, a kockázatok csökkentéséhez, azaz a környezeti és társadalmi erőforrások fenntartható hasznosítása érdekében sürgősen cselekedni kell.