bluuebunny/crossref_metadata_2025 huggingface dataset:
Listening and hearing Carmen: Sonic cartographies of struggle in U-Carmen eKhayelitsha (2005)
Authors: Himmelman Natasha
Published: March 2020

Situating within a diasporic genealogy of black opera that privileges black sonic/aural epistemologies, I am interested in how these knowledges 'disidentify' racialized and gendered hermeneutics of sounding and listening. Through the lens of , I centre black women's cartographies, imagining the black singing voice as, not only soundscape, but a uniquely embodied black geography. Identifying Carmen's singing voice as an embodied black geography, I discuss the sonic cartographies in U-Carmen through close readings of the film's opening and finale, as well as 'La Habanera'/ 'Lwaz'Uthando'. Embracing isiXhosa with Georges Bizet's score, the film struggles against the sonic colour line, challenging and recalibrating our listening ear. Within this soundscape, U-Carmen responds to the patriarchally imagined femme fatale, presenting a Carmen who struggles against gender-based violence.
Filming the invisible: Rubrics of ordinary life in Stories of Our Lives (2014)
Authors: Ombagi Eddie
Published: March 2020

In this article, I offer a reading of , a documentary about the experiences of queer people who live in the city of Nairobi. I am interested in how through the use of the documentary film, the director of the film and the queer people whose lives are represented, articulate new forms of inhabiting and being in the city. This is despite the legal and political hurdles that govern queer liveability in Kenya. I argue that when queer individuals inhabit, move through, move in, occupy or transit through city spaces in their daily habits, practices, rituals and performances, a rubric is generated. As a form, this rubric of ordinary also works both in, and outside of the convention of the documentary film. This rubric not only destabilizes the circulating discourses about queer sexuality, it also crafts a unique queer subjectivity that transcends the physical limitations of the city that enliven forms of queer world making
The casebre on the sand: Reflections on Luanda's excepted citizenship through the cinematography of Maria João Ganga's Na Cidade Vazia (2004)
Authors: Mututa Addamms
Published: March 2020

This article discusses Maria João Ganga's representations of musseques and the casebre in Na Cidade Vazia (2004). It reads such images and characterization of neglected characters as visual expressions of the way in which Luanda's informal spaces have become the most visible expression of precarious, indeed, excepted citizenship. Set in 1991, the film depicts a period during which the government and the rebels entered a temporary truce, which rapidly disintegrated, gesturing towards a continuing sense of exclusion from postcolonial prosperity. However, the bloody civil war that ensued between rival factions (1975–2002) – the governing Movimento Popular de Libertação de Angola (MPLA), led by Jose Eduardo dos Santos, and União Nacional para a Independência Total de Angola (UNITA), led by Jonas Savimbi – remarkably shifted the way post-Portuguese citizenship in Angola could be discussed. It clearly necessitates a new way of thinking about inclusion with respect to the incipient repercussions of indeterminate governance. In the context of this historical process, this article uses exception as a lens to conceptualize postcolonial urban citizenship in Luanda's cinema. The article sets off with an overview of 1975 literary imaginations of Luanda when the Portuguese colonialists were leaving Angola, which resulted in a clamour for the so-called spoils of independence. It then critiques excepted citizenship using two approaches: analysing urban architecture as a visual code for precariousness and filmic characters as embodiments of excepted citizenship.
Popular music in preservice music education: Preparedness, confidence and implementation
Authors: Hamilton Sandra , Vannatta-Hall Jennifer
Published: March 2020

This study examined popular music in preservice music teacher training programmes in the United States. The researchers explored types of courses and programmes offered in undergraduate music education programmes to prepare future music teachers to teach popular music. Quantitative data revealed trends in the inclusion of popular music within undergraduate music education programmes, determined music teacher educators’ perceptions of their students’ attitudes towards using popular music in the general music classroom, and examined the types of popular music pedagogy needed for preservice music educators. Qualitative data ascertained perceived confidence levels of graduates to utilize popular music. Results revealed that western classical music is the focus for the majority of music educators’ undergraduate degree programmes and that often music teacher preparation programmes ignore popular music study. Bridging the gap between western classical and popular music would help prepare teachers to include and value all types of music in K-12 music education.
A RELAÇÃO ENTRE MERCADO DE TRABALHO E AS POLÍTICAS DE FORMAÇÃO DO PROFESSOR NA SOCIEDADE CAPITALISTA
Authors: Taras Vaz Marta Rosani
Published: March 2020

This article aims to problematize the limits of the relation between salaried work and the policies of professional formation of the teacher, in order to argue the importance of a radical transformation of the social relations of production to overcome the problems related to employment and teacher valorization. Through the analysis of the supply and demand of teachers / pedagogues in the labor market of the Brazil and, particularly, of the State of Paraná, in the period from 2009 to 2013, we consider that there is a tendency of professional devaluation originating from the very logic of the relations between labor and capital. In this sense, based on the analysis of reality subsidized by the methodological theoretical framework of Dialectical Historical Materialism, we defend a social organization based on freely associated work to overcome the limits of educational policies for teacher training and appreciation.
O CORPO E O CONTROLE DA NATUREZA NA CONTEMPORÂNEIDADE: POSSÍVEIS IMPLICAÇÕES PARA A FORMAÇÃO DOCENTE EM EDUCAÇÃO FÍSICA
Authors: De Almeida Guenther Carlos Feitosa
Published: March 2020

The body becomes the object of intense study and investigations with the modernity. But he was not the object of indifference. Even with the denial of the bodily pleasures that the average age undertook, the body was object of attention and normalization, being understood in a double meaning, the sacred and the profane. The relation body and nature gains different contours with the birth of modern science, giving rise to new dualities, between matter and spirit or psyche. Such dualities have produced enduring and persistent meanings in bodily practices and body conceptions. Physical Education as an area of knowledge and intervention that has in the body culture its privileged object, inherits and re-signifies such conceptions, reproducing or breaking with dualistic practices and understandings of the relation body and nature. This essay seeks to discuss the relationships between body and nature as well as its implications for the formation of the academic and professional field of Physical Education. We seek to reflect on the social-historical constructions on the body, especially those centered on biological aspects. We understand that the relationship body nature is an important point of understanding the uniqueness and continuities on the conceptions of body. In this way we undertake a qualitative, historical and sociological analysis centered on authors who elucidate these questions, such as: Corbin, Courtine e Vigarello (2010), Gélis (2010), Suassuna et al. (2005), Vaz (1999), Csordas (2008) and Le Breton (2003). Based on the elements discussed by the authors, we identify ruptures and continuities in relation to conceptions and practices with the body, remaining a desire for the split between body and spirit/mind.
DESENVOLVIMENTO DO PENSAR NA PRIMEIRA INFÂNCIA: DO ZERO AOS TRÊS ANOS
Authors: Shimabukuro Arthur Yutaka , Tietsche Reis Claudia Jesus
Published: March 2020

This article, with a approach qualitative, aimed to investigate how the basis of early childhood thinking is developed, specifically from zero to three years, through the anthroposophical threefolding - Walking, Speaking and Thinking and its relationship with the data found by bibliographic review from the bases: ANPED ( National Association of Postgraduate and Research in Education) and CAPES (Coordination for Improvement of Higher Education Personnel). The physiological steps that children conquer from birth to the formation of thought, structured from the erect walk and the development of language, have been described. It was concluded that the interaction between the physical spaces for walking and the people of the child's conviviality to speak, determines how their abilities will be improved for the achievement of thinking.
MULHERES NA CIÊNCIA: AS CIENTISTAS DAS ACADEMIAS PERNAMBUCANAS
Authors: Da Conceição Josefa Martins , Pereira Juliana Carvalho , Teixeira Maria do Rocio Fontoura
Published: March 2020

This article aims to identify the scientists of the Pernambuco Academy of Agronomic Science, the Pernambuco Academy of Veterinary Medicine and the Pernambuco Academy of Chemistry, highlighting their professional trajectories, contributions in the production of knowledge and their relevance to the history of science in Pernambuco. As a methodological procedure, it was used the analysis of the documentary records of the scientists in the collection of each Academy, based on the primary sources, the official documents: statutes and regiments, printed and electronic records and biographical profile. Complementing this information is the analysis of Lattes Curricula. In addition to contextualizing and rescuing the Pernambuco pioneers, this study reveals that in the 1940s, women were admitted to the then male centers of Agronomy, Chemistry and Medicine and, in the 1950s, in Veterinary Medicine. The female participation in these courses has gradually increased and, nowadays, has as a differential the growing number of students. It is evident that, in the gender relation, male participation occupies the largest number in these Academies. In them, the actions of these women in the conquest of the feminine space in science in Pernambuco are visible.
MODELO PADRÃO DE PARTÍCULAS E A REFORMULAÇÃO CONCEITUAL DO MODELO ATÔMICO POR MEIO DE UMA UNIDADE DIDÁTICA VOLTADA PARA PROFESSORES DE CIÊNCIAS
Authors: Araujo Ione Dos Santos Canabarro , Robaina José Vicente Lima
Published: March 2020

. This paper reports the experience of a Didactic Unit (UD) on the Standard Particle Model starting from the limitations of classical physics to explain beta radioactive decay. The work was applied in a bachelor's degree in Nature Sciences: Biology and Chemistry Habilitation (LCN) of the Federal Institute of Rio Grande do Sul, Porto Alegre campus, in the last semester of the course. This work aimed to identify the possibilities and operationalities of a UD to work with topics of Modern Physics among science teachers. The specific objectives were to verify the limitations of classical physics to explain certain types of radiation and the need of modern physics to aid in understanding; to familiarize science teachers with models and concepts of Modern Physics. This is a qualitative research, according to Minayo (1993). The data were collected through the researcher's field diary, questionnaires with open questions, mental maps and works developed by the students (called teachers due to graduation proximity proximity). The data were analyzed through Content Analysis, according to Bardin (2011). From the collected data, we can see evidence that the concept of the current atomic model has been reformulated, according to Eisberg and Resnick (1988), that is, the atom is formed by Leptons, hadrons and force-mediating particles, called bosons. The understanding of the current atomic model and of the forces mediating particles has provided theoretical background and clarity for teachers to explain the radiation of nuclear origin and the operation of equipment that perform diagnostic imaging.
EFEITO DE UMA ABORDAGEM TEMÁTICA NAS CONCEPÇÕES SOBRE O CIGARRO E FUMO PASSIVO EM CRIANÇAS DO SEGUNDO ANO DO ENSINO FUNDAMENTAL DE DUAS ESCOLAS MUNICIPAIS DE GUARAPUAVA-PR
Authors: Lima Ana De Souza , Faustino Larissa De Lima , Souza Matheus Rodrigues de , Bonini Juliana Sartori , Bonini Juliana Sartori , Meira Martins Leo Anderson
Published: March 2020

Smoking is considered to be a chronic disease caused by the nicotine dependence. The passive smoking is the leading cause of childhood respiratory disease. This research aimed to evaluate the conceptions that 2nd year-students of the Elementary School of two public schools at Guarapuava-PR, aging between 6 and 8 years, have about cigarettes and passive smoking. The work was performed at three moments: (1) without a preliminary intervention, the students answered a semi-structured questionnaire composed of 5 questions on cigarette and passive smoking (Pre-test, PT); (2) the students participated of activities where they saw an educational video and read a comic book whose theme dealt with the influence of the cigarette and the physiology of the respiratory system; (3) after 1 week and after 1 month, the students answered the same questionnaire offered in the PT (called respectively post-test 1 week, PTS, and post-test 1 month, PTM). More than 50% of students said they live with smokers at home. Children who answered did not know the cigarette answered otherwise following the thematic approaches. Children who answered to stay close to smokers answered otherwise following the thematic approaches. More than 60% of students answered that teacher do not address the cigarettes and passive smoking topic in the classroom, but they changed their responses after the thematic approach. The conceptions of children relating cigarette use to lung damage increased. This study showed that the approaches taken at schools with children who study in the initial grades of elementary school were effective.
SABERES POPULARES E CONCEPÇÕES ESCOLARES
Authors: Küster Joziani , Ribeiro Marcus Eduardo Maciel , Robaina José Vicente Lima
Published: March 2020

This article aims to bring conceptions of knowledge that have passed through generations, which is called popular knowledge or primeval knowledge (CHASSOT, 2016) and which are spread in specific communities by ancestors. This article presents conceptions about school learning based on popular knowledge. This is an extract from the master thesis project that one of the authors develops. The investigation consists in a case study in where data will be collected through questionnaires and interviews during the project. Then, these data will be treated through Discursive Textual Analysis (MORAES; GALIAZZI, 2011) aiming to produce metatextes that allow the comprehension of the way that popular knowledge in those regions is consolidated in the form of school activities. It aims to identify teachers' opinions on the importance of this work based on popular knowledge; recognize the influence of popular knowledge on the science learning concepts of the schools in Rio do Oeste, Santa Catarina; and understand how the scientific knowledge at schools interferes with popular knowledge.
HISTÓRIAS EM QUADRINHOS: BREVE HISTÓRICO, CONCEITOS E UTILIZAÇÃO NO ENSINO DAS CIÊNCIAS DA NATUREZA
Authors: Santos Victor João da Rocha Maia , Garcia Rosane Nunes
Published: March 2020

Comics have always been and will always be a mass medium whose focus is entertainment; however, as a type of language, its use and adaptation for the educational environment is relatively recent. In the 1980s in Brazil textbooks started to display some comics. Nonetheless, only in 1997, with the creation of PCNs, were comics officially incorporated in the classroom pedagogical praxis. The term “comic strips” and its many variations have mainly negative connotations, which have persisted until now and which have impacted the potential of this type of language in Education. Nevertheless, Brazilian researchers in the area, such as Waldomiro Vergueiro, Sonia Luyten, Franciso Caruso, and others believe comic strips can be used as a pedagogical resource on every educational level, with no restrictions. Due to the fact that it is an autonomous language, comic strips are also a writing genre, which usually employs verbal and nonverbal aspects. Thus, reading the visual information that is present in comic strips can indicate a visual narrative that allows for an experience as intense as that of reading verbal aspects, since they complement one another. Therefore, comic strips are a medium that can aid formal learning of Natural Sciences thanks to its fast, dynamic and extremely visual reading, which facilitates the explanation of scientific content on any level of education, working as a motivator in the learning process.
PESQUISA QUALITATIVA, DIVERSIDADE METODOLÓGICA E USO DE SOFTWARE: DESAFIOS, POSSIBILIDADES E POTENCIALIDADES
Authors: Castro Paulo Alexandre De , Barros Victor F. A. , Fernandes-Sobrinho Marcos , Sadoyama Adriana Dos Santos Prado
Published: March 2020

This special issue of the Brazilian Journal of Education, Technology and Society (BRAJETS), in partnership with the 7th Ibero-American Congress on Qualitative Research (CIAIQ2018), focuses on “Qualitative Research, methodological diversity and use of software: challenges, possibilities and potentialities” that permeates the content of the seven articles in the extended versions of selected papers and invited by the CIAIQ2018 scientific committee/organizer, to compose this special issue. The partnership between CIAIQ and BRAJETS seeks to promote and disseminate qualitative research to the scientific community in the target areas of the Journal: education, technology, medicine, society and the internationalization of postgraduate programs. In order to provide quality and representativeness of the articles published in this journal, we made sure that they all go through a double-blind review process, through a careful analysis of a scientific committee composed of experienced, qualified and highly active researchers in their respective areas of expertise. In view of the above, we invite all to enjoy a good reading of this special issue, and that it can contribute with inspirations and ideas for the writing and execution; whether of research or future work.
FORMAÇÃO CONTINUADA EM EAD: REFLEXÕES DO PROFESSOR TUTOR EM UM PROCESSO FORMATIVO
Authors: Saggiomo Leandro , Pereira Elaine Corrêa
Published: March 2020

The Secretary of Distance Education of the Federal University of Rio Grande (FURG), in order to qualify the teaching staff that works in the distance education (DE) courses offered by the institution, develops continuing education actions. In this context we find the tutors professors, responsible for the development, monitoring and evaluation of the students. The present qualitative research aims to identify the impressions and reflections of the tutor professor about the training actions in DE. The subjects of the research are the tutor’s professors who acted in the course of Administration distance modality. The data were produced through a semi-structured interview and analyzed by the method called Collective Subject Discourse. Based on the analyzes, the Collective Discourse called "The Actions of Formation in DE" was generated, based on some considerations, demonstrating the senses, feelings and reflections that the formations propitiated to the practice of the tutoring.
EDUCAÇÃO SEXUAL E ATUAÇÃO DOCENTE NA ESCOLA INCLUSIVA: COMPROMISSOS SOCIAIS DO ENSINO DE CIÊNCIAS
Authors: Pena Andreia Lelis , Caixeta Juliana Eugênia , Mól Gerson De Souza
Published: March 2020

Science Education must assume its social commitment to Sexual Education and Inclusion, because it is responsible for the elaboration of pedagogical contexts that enable the construction of scientific concepts related to body and sexuality. In order to do so, science education must position human sexuality as a complex phenomenon, whose teaching must consider biological, psychological and social phenomena, and contemplate diversity as inherent in human groups. In this work, we seek to investigate the perception of Science teachers about Sexual Education and the understandings about the sexuality of students with specific needs, in inclusive schools of the Federal District. The relevance of this research is anchored in three aspects: first, the invisibility of the theoretical and methodological discussion that articulates sexuality and disability; according to the repercussion of this invisibility in the non-teaching and; third, in the possibilities of initial and continued training of science teachers in the subject matter. It was a qualitative investigation whose information was generated through semi-structured interviews with eight teachers and analyzed with the support of WQDA software. The teachers' perceptions about the sexuality of people with disabilities, outlined in this research, showed advances on the one hand, that is, on the recognition of many teachers that people with disabilities are subjects of desire; but also stagnation, when there are still teachers who have not been able to recognize their sexuality or how to act in the classroom in order to approach different ways of being and living together, considering sexuality. The analyzes presented reveal the importance of planning proposals for initial and continuing training for Science teachers, with a view to meeting the social commitments of Science Education towards inclusive and sexual education, which implies in defending and promoting the essential right to education person to human development in its entirety, including sexuality and its teaching, in a plural and bio-social perspective.
HOW TO PLAN, HANDLE, ANALYSE AND INTERPRET NARRATIVES, ACCORDING TO THE QUALITATIVE-UNDERSTANDING APPROACH?
Authors: Toscano Maria de Fátima
Published: March 2020

This paper derives from our PhD research in Sociology on socio-identitarian requalification processes (processos de requalificação socio-identitária, henceforth PRSI) of Portuguese women who migrated to the Basque Country (San Sebastian area). To this end, we co-composed 31 exemplary case accounts, following the question: “What are the logics of action and what identitarian strategies are adopted by women who, facing the social experience of disqualification, engage in their ‘socio-identitarian requalification’?” We focus and organize this paper on the exposition of the main procedures and specific forms of the qualitative analysis, as we applied it at the ‘the processes of socio-identitarian requalification (PRSI) - how we called, since 2008, the analytical-understanding model of social trajectories of requalification from poverty conditions. (cf. Toscano 2015, 2017, 2018). So, in this paper, we explain in depth how we organize the 4 methodological acts which compose this 'analytical-understanding model processes of socio-identitarian requalification' that we have been developing since 2008 in our analysis of trajectories for social change ('leaving' so called poverty conditions). Therefore, after a brief mention of the Tool-Problematics, which constitutes the base for our research, in point 1.1 (1st act: theoretical-conceptual-epistemological roots), we focus on specific procedures, such as: - point 2: justifying the co-composition of accounts: operationalizing principles, procedures and criteria for the selection of exemplary cases and composition of narratives (2nd act, steps 2-3); - point 3: planning and co-composing the biographical process (2nd act, Steps 4a-4b; 6 stages); - point 4 (3rd act), 1st level of theorization: writing down speech through transcription-translation (step 5; stages 7-8) and transposition-rearrangement (analysis units, operation mode, discursive levels, account axes, rules/kinds of annotation - steps 6-7, stages 9-12); - point 5 (4th act), 2nd level of theorization: interpretation and theorizing composition in emergence (steps 8-9, stages 13-14, 7 operations); and finally, point 6, brief conclusions..
VISÃO DOS DOCENTES SOBRE AS POSSIBILIDADES DE APRENDIZAGEM DOS ESTUDANTES DE ENFERMAGEM E MEDICINA A PARTIR DA VIVÊNCIA NA PRÁTICA PROFISSIONAL E DESAFIOS ENCONTRADOS
Authors: Ghezzi Joyce Fernanda Soares Albino , Higa Elza de Fátima Ribeiro , Lemes Monike Alves , Peres Cassia Regina Fernandes Biffe , Marin Maria José Sanches
Published: March 2020

The challenge of training health professionals in Brazil points to the political commitment both to education and to society, as it requires, in addition to technical skills, improvement in the intra and interpersonal process as pointed out in the National Curricular Guidelines. The purpose of this article is to understand the Professors’ perception about the students’ learning of the Nursing and Medical courses included in the Family Health Strategy, and to identify the factors related to the teaching work process in the active learning methodology. This Research based on the presuppositions of Hermeneutics-Dialectics. Ten professors from the Nursing and Medicine courses that followed up students in the professional practice scenario participated of the research. The data were obtained through recorded interviews. From the analyses emerged three nuclei of meaning: Significant and relevant learning; Insecurity for the development of the active methodology and Difficulties in the teaching work. The teachers pointed out the importance of the real scenario for learning and the uncertainties and difficulties of the process. In this sense, these results can subsidize required changes in the educational process.
A PRESENÇA DIGITAL NO INSTAGRAM DA MARCA ADIDAS EM 2017
Authors: Ghisleni Taís Steffenello , Trindade Nathane Spencer
Published: March 2020

This project analyzes the digital presence of Adidas Brasil and Adidas Originals in 2017 on Instagram, covering the period of June and July of 2017. In this period, we analyzed how the brand develops its communication, mapping the characteristics and their differences on Instagram. The communication strategy most used by the brand Adidas Brasil and Adidas Originals was identified, as well as the brand operates in each profile. It was analyzed in which phase of the digital presence each profile is acting (STRUTZEL, 2015) and finalizing, it is presented which social media generates more engagement for the brand, through a qualitative/quantitative research, using the content analysis. Adidas Brasil and Adidas Originals use testimonial and information strategies through their publications on Instagram profiles. This work concludes that the two profiles are not at all stages of the digital presence, but Adidas Originals is the one that generates more engagement with the public.
TIC, LETRAMENTO DIGITAL E ENSINO DE LITERATURA
Authors: Silva Júnior Silvio Nunes da
Published: March 2020

This text proposes to relate the studies on literary literacy, digital literacy and literature teaching, a relationship that dialogues theoretical and methodological perspectives in which important practices are inserted for the performance of teachers and researchers of applied linguistics and education, contributing, above all, to that the classrooms become reflective spaces that can go beyond the concept of literacy that circulates in the scientific scenario.
ESTÁGIO DE DOCÊNCIA EM QUÍMICA: PROPOSIÇÃO DE SITUAÇÕES-PROBLEMA ENVOLVENDO QUÍMICA INORGÂNICA
Authors: Fonseca Carlos Ventura , Pereira Cleiton Leandro Zimmermann
Published: March 2020

This paper describes and problematizes the pedagogical practices developed by a trainee in initial formation with three first grade high school classes in a public school in Porto Alegre, Rio Grande do Sul, Brazil, in the second semester of 2017. This is a qualitative exploratory study based on documentary sources (the report produced at the end of this formative period). In this article, the focus is on classroom activities that have as a reference the methodological approach called problem-based learning, as well as the assessment and self-assessment activities that were proposed by the teacher and performed by high school students. The teacher information centrally addressed some conceptual content related to Inorganic Chemistry with the adoption of the theme "pollution" as a way to try to connect the discussions held with the students' daily life. The systematized results which were discussed in this article indicate that important elements of learning about the teaching work were constituted favoring the effective development of the intern that was investigated. The latter was able to take a safe position on his work which includes, especially, evaluation processes that unveiled factors concerning student learning and the methodological choices adopted in the process.
MARCAS E MOBILE: O USO DE APPS PARA APROXIMAÇÃO COM O PÚBLICO
Authors: Ghisleni Taís Steffenello , Milani Rafaela Rezer
Published: March 2020

Mobile advertising is an environment that you can not escape, because of that, it is a great knowledge about how the environment works and how the possibilities it offers. Thinking about that the present work was developed with the objective of studying the apps developed by brands for the approximation with the public. It was analyzed as at brands Nestlé, Faber Castell, Neosaldina e Suvinil develop their strategies to gain visibility and stay in the market. With qualitative and exploratory character, the study was conducted from indirect observations of the applications and analysis of content where it was possible to verify that the brands are not using all the possibilities that the mobile environment offers.
Endogenous Authority and Enforcement in Public Goods Games
Authors: Lim Wooyoung , Zhang Jipeng
Published: March 2020

This paper investigates theoretically and experimentally the social benefits and cost to have an endogenous punishment-enforcing authority in public goods game. An authority is chosen among members of a society via an imperfectly discriminating contest prior to a public goods game. Once chosen the authority has a large degree of discretion to inflict punishment. Our theoretical result shows that an efficiency gain from having the endogenous authority always comes with a social cost from competing for being the authority. The larger the society is, however, the bigger the efficiency gain and the smaller the rent dissipation. The completely efficient outcome can be approximated as the size of society tends to infinity. The experimental results confirm that the presence of endogenous authority for a given group size increases the public goods contributions and the efficiency gain is significantly bigger in a larger group.
Service Composition in IoT using Genetic algorithm and Particle swarm optimization
Authors: Kashyap Neeti , Kumari A. Charan , Chhikara Rita
Published: March 2020

Web service compositions are commendable in structuring innovative applications for different Internet-based business solutions. The existing services can be reused by the other applications via the web. Due to the availability of services that can serve similar functionality, suitable Service Composition (SC) is required. There is a set of candidates for each service in SC from which a suitable candidate service is picked based on certain criteria. Quality of service (QoS) is one of the criteria to select the appropriate service. A standout amongst the most important functionality presented by services in the Internet of Things (IoT) based system is the dynamic composability. In this paper, two of the metaheuristic algorithms namely Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are utilized to tackle QoS based service composition issues. QoS has turned into a critical issue in the management of web services because of the immense number of services that furnish similar functionality yet with various characteristics. Quality of service in service composition comprises of different non-functional factors, for example, service cost, execution time, availability, throughput, and reliability. Choosing appropriate SC for IoT based applications in order to optimize the QoS parameters with the fulfillment of user’s necessities has turned into a critical issue that is addressed in this paper. To obtain results via simulation, the PSO algorithm is used to solve the SC problem in IoT. This is further assessed and contrasted with GA. Experimental results demonstrate that GA can enhance the proficiency of solutions for SC problem in IoT. It can also help in identifying the optimal solution and also shows preferable outcomes over PSO.
Hausdorff operators on Bergman spaces of the upper half plane
Authors: Stylogiannis Georgios
Published: March 2020

In this paper we study Hausdorff operators on the Bergman spaces A

p
(𝕌) of the upper half plane.
Experimental Study of the Effectiveness of a Combined Closure of the End Gate Pipeline Valve
Authors: Herasymov Henrikh H. , Gerasimov Ievgenii G. , Ivanov Sergiy Y. , Pinchuk Oleg L.
Published: March 2020

One of the ways to ensure a reliable operation of irrigation systems is to protect them from water hammer (hydraulic shock) damage that occurs when starting or stopping a pumping station. This can be achieved by creating conditions in which a water hammer will not occur in the pressure pipeline as a result of closing the end gate valve (EGV). The aim of the present study was to investigate processes occurring in the pipeline during a linear closure of the EGV, during a closure with one break point and during an intermittent closure, as well as to verify the effectiveness of a combined end gate valve closure of the pipeline. Based on experimental data and calculations, the article recommends a linear closure of the EGV with one break point.
From giant despair to a new heaven: The early years of automatic collation
Authors: Nury Elisa , Spadini Elena
Published: March 2020

This article presents a commented history of automatic collation, from the 1940s until the end of the twentieth century. We look at how the collation was progressively mechanized and automatized with algorithms, and how the issues raised throughout this period carry on into today’s scholarship. In particular, we examine the inner workings of early collation algorithms and their different steps in relation to the formalization of the Gothenburg Model. The scholars working with automatic collation also offer fascinating insights to study the collaborations between Humanists and Computer Scientists, and the reception of computers by philologists.
Extended Nonequilibrium Variables for 1D Hyperbolic Heat Conduction
Authors: Sobolev Sergey L. , Kudinov Igor V.
Published: March 2020

We use the Shannon (information) entropy to define an “entropic” temperature for 1D nonequilibrium system with heat flux. In contrast to the kinetic temperature, which is related to the average kinetic energy, the nonequilibrium entropic temperature is related to the changes in entropy and serves as a criterion for thermalization. However, the direction and value of the heat flux is controlled by the gradient of the kinetic temperature, whereas space-time evolution and the space-time evolution of the heat flux are governed by the hyperbolic heat conduction equation. The extended nonequilibrium variables, namely, entropy, entropic temperature, thermal conductivity, and heat capacity demonstrate a third-law-like behavior at high deviation from equilibrium when the heat flux tends to its maximum value, even at nonzero value of the kinetic temperature. The ratio of the heat flux to its maximum possible value plays a role of an order parameter – it varies from zero in the equilibrium (disordered) state to unity in the nonequilibrium (ordered) state.
Optimization of an EYDWA Amplifier Parameters for a Gigabit Passive Optical Network (GPON)
Authors: Berrahal B.A. , Anani M. , Bendaoudi A.
Published: March 2020

The purpose of this study is to evaluate the impact of the location of the Er3+/Yb3+optical amplifier (EYDWA) in passive optical access network downstream (as a post-amplifier or booster, in the middle) and upstream transmission . This can give us an extended connection and a huge distribution ratio for a beneficial implementation of the optical fiber. The transmission quality was compared on the location of the amplifier as well as the length of the link. According to the results obtained by system simulation one noted that there is a clear improvement of the system performance by the effect of the amplifier (EYDWA). One could obtain a distance of more than 200 km for GPON. Moreover by varying the opto-geometric parameters such as concentration of Ytterbium ions and the length of the guide allowed us to improve the quality factor and binary error rate.
E-Entrepreneurship and Economic Development: the Case of EU Countries
Authors: Rusu Valentina Diana , Roman Angela
Published: March 2020

The aim of our paper is to identify how entrepreneurs from European Union (EU) countries use information and communications technologies (ICTs) in their business activities. We also propose to identify if there are differences in the use of ICTs by entrepreneurs, according to level of economic development of EU countries. In order to achieve these goals, we analyse a sample of EU countries, by including them into two groups, according to the stage of their economic development. For analysing the data, we use several methods (the logical-constructive method, comparative methods and benchmarking). The benchmarking method helps us to estimate indicators at country level and to compare them between countries. Our results indicate that e-entrepreneurship in developed countries is more advanced compared to developing countries. There are also significant differences regarding the use of informational technologies between types of firms by their size. Small enterprises use in a lower proportion ICTs in their activity compared with large firms. Through the content of our research, we emphasize that in order to adapt to the rapid changing environment and also to the changes in the consumer’s behaviour the enterprises should focus on introducing the ICTs in their activity to face the competition. Also, government policies should pay more attention to supporting development of information technology infrastructure.
Crystal structure of mechanochemically synthesized Ag2CdSnS4
Authors: Heppke Eva M. , Berendts Stefan , Lerch Martin
Published: March 2020

Ag2CdSnS4 was synthesized by a two step mechanochemical synthesis route. From a detailed analysis of the observed reflections in the X-ray powder diffraction pattern, the crystal structure proposed in the literature (space group Cmc21 [E. Parthé, K. Yvon, R. H. Deitch, Acta Crystallogr.
1969, B25, 1164–1174; O. V. Parasyuk, I. D. Olekseyuk, L. V. Piskach, S. V. Volkov, V. I. Pekhnyo, J. Alloys Compd.
2005, 399, 173–177]) is questionable. Our structural investigations presented in this contribution point to the fact that Ag2CdSnS4 crystallizes in the monoclinic wurtzkesterite-type structure (space group Pn). At around T = 200°C, a phase transition to the orthorhombic wurtzstannite-type structure (space group Pmn21) is observed.
Retos ante la reescritura del cuerpo sexuado de la mujer y la prostitución femenina: estudio de caso
Authors: Martínez Pleguezuelos Antonio Jesús , Alcalde Peñalver Elena , Santamaría Urbieta Alexandra
Published: March 2020

Este estudio pretende poner de manifiesto los desafíos que se afrontan en la práctica profesional de la traducción a la hora de reconocer la perspectiva feminista como un ámbito en el que necesitamos poner el foco de atención cuando se trabaja con textos relacionados con la prostitución. Sabedores de las dificultades que entraña una traducción que sitúe en pie de igualdad a hombre y mujer en el tratamiento de la prostitución, planteamos a un grupo de estudiantes sin formación específica previa en traducción un ejercicio práctico en el que debían traducir de inglés a español un artículo que aborda las complejidades sociales y culturales que emanan de concebir la prostitución en tanto que derecho humano. El objetivo de la actividad consistía en favorecer una reflexión sobre las implicaciones ideológicas que participan en la traducción de este tipo de textos, así como conocer el punto de vista y las herramientas de las que disponían para un encargo de estas características. El estudio se llevó a cabo en tres fases. Tras el análisis cualitativo de los resultados obtenidos corroboramos las implicaciones éticas del ejercicio de la traducción en la definición discursiva tanto de la mujer como del hombre en sentidos opuestos. Por ello, consideramos necesario seguir formando a estudiantes en traducción para que sean capaces de detectar las herramientas discursivas que contribuyen a afianzar los desequilibrios entre hombres y mujeres y los roles que quedan asignados en la sociedad.
Smart Machining Process Monitoring Enabled by Contextualized Process Profiles for Synchronization
Authors: Wang Zhigang , Wagner Timothy C. , Guo Changsheng
Published: March 2020

Repeated machine downtime leads to lost productivity, late deliveries, and dissatisfied customers. Plants often struggle with meeting delivery commitment because they lack advanced predictive technologies. Because of limited information from current production practice, it is very challenging to control product quality, meet the tight tolerance, and eliminate scrap parts, which is especially critical for expensive aeroengine components. With the recent development of Industrial Internet of Things and Operation Technologies, it is now feasible to digitize the production process and take machine reliability and performance to a new level. In this study, the machining process is simulated in the virtual environment, and the output response is used as a reference digital thread of the process. In real-time machining, the computer numerical control (CNC) control signals together with existing machinery sensors and historical data are monitored and fused together to observe the machining conditions. Comparing the reference signature with supervised machine learning analytics, any subtle deviations in operating behavior, which are often the early warning signs of problems, can be identified. Also, with the look-ahead function, it gives the operators better visibility into the machining process. With the proposed method, without adding any more hardware to existing production machineries, it is feasible to capture data in real time, conduct automated analysis of the information, and create visualizations for team members. Plus, the real-time monitoring of any deviation in operating behavior during production can protect machine and cutting tools from excessive load and damage, thereby reducing operating costs and increasing effective manufacturing capacity.
Effect of Vegetable Oil–Based Hybrid Nano-Cutting Fluids on Surface Integrity of Titanium Alloy in Machining Process
Authors: Pasam Vamsi Krishna , Neelam Parimala
Published: March 2020

In the present work, an attempt is made to examine the machining performance in turning titanium alloy using vegetable oil–based hybrid nano-cutting fluids. The sesame oil–based hybrid nanofluids with carbon nanotubes (CNT)/molybdenum disulphide (MoS2) in the ratio of 1:2 are used to test the effect of surface integrity in the machining of titanium alloy. The cutting forces, cutting temperatures, surface roughness, and microhardness of the machined surface were measured. The machined surface is analyzed for machining-induced residual stresses and changes in the surface topography. Machining performance improved with vegetable oil–based hybrid nano-cutting fluids in reducing cutting forces and cutting temperatures. The percentage reduction of temperatures in the cutting zone under 0.5, 1, 1.5, and 2 wt. % and conventional cutting fluids (CCFs) are 70.2, 58.2, 63.1, 67.3, and 56.7, respectively, compared with dry machining. The percentage reduction in cutting forces are found to be 39.4, 70.9, 42.7, 73.2, and 72.3 for CCF 0.5, 1, 1.5, and 2 wt. % nanoparticle inclusions (NPI) compared with dry cutting, respectively. The percentage reduction in surface roughness (Ra) under CCF is 9.6, 24.4, 23.2, 22.4, and 26.7 for 0.5, 1, 1.5, and 2 wt. % NPI respectively, compared with dry cutting. The microhardness of the machined surface increased, and residual stresses are encouraging with hybrid nano-cutting fluids.
Probiotics in Psychosocial Stress and Anxiety. A Systematic Review
Authors: Vitellio Paola , Chira Alexandra , De Angelis Maria , Dumitrascu Dan L , Portincasa Piero
Published: March 2020

Background and Aims: Recent mounting evidence suggest that probiotics supplementation can have a positive effect on mood and psychological symptoms such as stress and anxiety disorders. The majority of studies, however, rely on animal models, while clinical data are still inconsistent. In this systematic review, we examined if and to which extent probiotics can influence psychological stress and anxiety disorders.

Methods: The search of online databases Medline, PubMed, Scopus, Web of Science and clinical trials.gov provided relevant studies up to November 2019. We included double blind, randomized and placebo controlled or prospective studies, as well as studies measuring preclinical psychological symptoms of perceived stress and anxiety, before and after supplementation with a probiotic.

Results: Twelve studies met the inclusion criteria (3 on stress, 4 on anxiety, and 5 both on stress and anxiety), accounting for 1,521 participants. The improvement of stress, anxiety, and stress-anxiety was reported in 1/3, 3/4, and 2/5 studies, respectively.

Conclusions: Available studies suggest that probiotics may improve psychological symptoms associated particularly with anxiety. Further research needs to investigate whether probiotics also improve psychological stress disturbances.
Onset and Progression of Precancerous Lesions on Gastric Mucosa of Patients Treated for Gastric Lymphoma
Authors: Zullo Angelo , Rago Angela , Felici Stefano , Licci Stefano , Ridola Lerenzo , Caravita di Toritto Tommaso
Published: March 2020

Background and Aims: Patients with primary gastric lymphoma are at an increased risk of developing gastric cancer. Data on gastric precancerous lesions development in these patients are scanty. We assessed gastric precancerous lesions in a cohort of patients with primary lymphoma.

Methods: Data of patients with primary gastric lymphoma [mucosa-associated lymphoid tissue (MALT)- lymphoma or diffuse large B-cell lymphoma (DLBCL)] were analysed. Multiple (>10) biopsies were performed on gastric mucosa at each endoscopic control, beyond macroscopic lesions. Presence and distribution of intestinal metaplasia (IM) at baseline, the onset at follow-up, and progression through the stomach or transformation in the incomplete IM type were assessed. The onset of neoplastic lesions was recorded.

Results: Data of 50 patients (mean age of 63.6 ± 10.7 years; M/F: 25/25), including 40 with MALT-lymphoma and 10 with DLBCL, with median follow-up of 30.5 months (range: 9-108) and a median of 6 endoscopic controls (range: 3-14) were evaluated. At entry, IM was present in 12 (24%), and it developed in other 22 (57.9%) patients at a median follow-up of 6 (range: 3-40) months. Overall, progression of IM was observed in 7 (21.2%) cases, including extension in the stomach (n=5) or transformation into the incomplete type (n=2). Low-grade dysplasia was detected in 4, and indefinite dysplasia in other 7 patients. In one patient, low-grade dysplasia had progressed to high-grade and gastric adenocarcinoma of the fundus.

Conclusions: Our data found a frequent onset and rapid progression of precancerous lesions on gastric mucosa of lymphoma patients. This observation could explain the increased incidence of metachronous gastric cancer in these patients.