bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of the Effects of Hypo-Magnetic Fields on Mouse Macrophage RAW264 Cells
Authors: Srimai Nipitpon , Kiatarkom Wasawat , Miyata Hidetake
Published: December 2020

Hypo-magnetic fields (HMFs) are static magnetic fields that are significantly weaker than the geomagnetic field and are found in interplanetary space, on Mars, and the Moon. Understanding the mechanism of the biological effects of HMFs is an important topic in magnetobiology. Human physiology studies have shown that HMFs cause various adverse health effects such as increased blood pressure and blood flow rate. Previous studies on the effects of HMFs on cells revealed a variety of effects, such as a change in growth rate, a decrease in mitochondrial membrane potential, and an increase in reactive oxygen species. A decrease in mitochondrial membrane potential (DFm) may seriously impair cellular activity by interfering with the production of ATP. Thus, a deeper investigation of the effects of HMFs on mitochondrial function could provide clues to understanding the adverse effects of HMFs. In the present study, we used mouse macrophage RAW264 cells to investigate the effects of an HMF on mitochondrial membrane potential, mitochondrial superoxide anion (O2-) production, and cell proliferation.
Consistency of Penalized Convex Regression
Authors: Lim Eunji
Published: December 2020

We consider the problem of estimating an unknown convex function f_* (0, 1)^d →R from data (X1, Y1), … (X_n; Y_n).A simple approach is finding a convex function that is the closest to the data points by minimizing the sum of squared errors over all convex functions. The convex regression estimator, which is computed this way, su ers from a drawback of having extremely large subgradients near the boundary of its domain. To remedy this situation, the penalized convex regression estimator, which minimizes the sum of squared errors plus the sum of squared norms of the subgradient over all convex functions, is recently proposed. In this paper, we prove that the penalized convex regression estimator and its subgradient converge with probability one to f_* and its subgradient, respectively, as n → ∞, and hence, establish the legitimacy of the penalized convex regression estimator.

 
Homonimia y polisemia en la enseñanza no universitaria: revisión y propuesta didáctica
Authors: Horno Mamen , López Natalia
Published: December 2020

Tras una revisión de los principales manuales empleados en la enseñanza no universitaria, hemos detectado deficiencias con respecto al tratamiento de la ambigüedad léxica. El objetivo de esta investigación es doble. Por un lado, presentar una explicación detallada de en qué consiste la ambigüedad léxica (polisemia y homonimia), superar la confusión de los manuales y desechar los mitos que en ellos se repiten. Para ello, nos basaremos en la bibliografía al respecto (Rodd 2002, Klepousniotou, y Baum, 2007) y nuestra propia investigación (López Cortés, 2017). Por otro lado, se plantearán algunas propuestas didácticas que propicien la reflexión del alumnado a distintos niveles y despierten  en los alumnos el espíritu científico e investigador. El objetivo es transmitir la ambigüedad léxica como parte del conocimiento del lenguaje al que se accede por medio del método científico.
O desenvolvimento urbano baseado no conhecimento como estratégia para promoção de cidades inteligentes e sustentáveis
Authors: Michelam Larissa Diana , Cortese Tatiana Tucunduva Philippi , Yigitcanlar Tan , Vils Leonardo
Published: December 2020

Na era do conhecimento, o rápido progresso tecnológico, especialmente no campo das tecnologias de informação e comunicação, é visto como o principal aliado para responder às crescentes crises ambientais e socioeconômicas urbanas. Nesse contexto, as cidades inteligentes e sustentáveis são aquelas que empregam tecnologia e inovação para melhorar a qualidade de vida de seus cidadãos e a eficiência dos serviços, buscando o desenvolvimento urbano sustentável. Na prática, entretanto, diversos desafios se impõem às cidades que buscam tornar-se inteligentes e sustentáveis. Para agregar as dimensões de inteligência e sustentabilidade, as cidades precisam de soluções desenhadas localmente e planejamento urbano estratégico integrado e equilibrado. Um modelo estratégico aderente a esses requisitos é o Desenvolvimento Urbano Baseado no Conhecimento (DUBC), que articula quatro domínios de desenvolvimento baseado no conhecimento (econômico, social, espacial e institucional) para um processo de transformação urbana de longo prazo, no contexto da nova economia do conhecimento e da competitividade global. Por meio de revisão de literatura, este artigo tem como objetivo apresentar e discutir os principais aspectos conceituais e de aplicação do DUBC como uma abordagem estratégica para a promoção de cidades inteligentes e sustentáveis. Os resultados indicam que o DUBC pode contribuir ao oferecer uma abordagem multidimensional e integrada para o planejamento urbano estratégico que inclui a implementação de tecnologias urbanas, desenvolvidas por processos endógenos de inovação e voltadas a um desenvolvimento urbano verdadeiramente inteligente e sustentável.
Police simulation systems in the education process of traffic police officers
Authors: Nepelski Mariusz
Published: December 2020

Technologies supporting the process of educating police personnel have become an indispensable element of the infrastructure of police schools. The primary source of financing for the technologies built is the National Center for Research and Development. In consultation with the Minister of National Defense and the minister competent for internal affairs, the institution carries out activities related to research for the benefit of state security and defense. In competitions for specifically defined research topics, projects that promise the most considerable real increase in national security are financed. The programs and projects being implemented aim not only to increase the Polish scientific and industrial entities’ potential but also to strive for technological independence by creating Polish “know-how” in critical technologies in the area of national security and defense. The article presents technologies supporting the training process of traffic officers developed by Polish scientific and industrial consortia. The first presented trainer is Simulator Supporting the Training of Police Officers in the Implementation of Activities at the Scene of a Road Accident (project no. DOB-BIO9/06/01/2018). On the other hand, the second training solution presented in the article is the Emergency Vehicle Driving Simulator During Typical and Extreme Operations (project no. OROB 001101/ID/11/1). The mentioned projects were co-financed by the National Center for Research and Development as part of a competition for the implementation and financing projects in the field of scientific research or development work for the national defense and security.
Military aspects in Polish-Czechoslovak confederation plans during World War II
Authors: Zuziak Janusz
Published: December 2020

The defeat of Poland in September 1939 prompted General Władysław Sikorski, appointed Commander-in-Chief and Prime Minister of the Republic of Poland, to take steps to implement his earlier concept of a close relationship between Poland and Czechoslovakia. The aim of the project undertaken in Sikorski’s talks with Edward Beneš was to create a strong entity capable of countering the German and Soviet threats in the future. The implementation of such a plan, assuming the future expansion of the union to include other countries in the region, would provide a real opportunity to change the then geopolitical system in Central and Eastern Europe. The Sikorski-Beneš talks took place from the autumn of 1939 to the spring of 1943, when the Czechoslovak side adopted the pro-Soviet option in its policy and, in practice, withdrew from joint preparatory work to establish the Confederation Union. One of the main areas taken up during the Polish-Czechoslovak talks was the issue of shared defense policy. It is most broadly presented in two documents: in the Principles of the Constitutional Act of the Polish-Czechoslovak Confederation prepared by the Polish side and in the Czechoslovak Basic Principles of the Czechoslovak-Polish Confederation.
Campos Potenciais Artificiais e Consenso Aplicados ao Problema de Navegação de Sistemas Multiagente Heterogêneo
Authors: Pereira George , Carvalho José Reginaldo
Published: December 2020

Este artigo avalia a eficácia da aplicação combinada da técnica conhecida por Campos Potenciais Artificiais (CPA) com a técnica de Consenso para sistemas multiagente heterogêneos compostos por Veículos Aéreos Não Tripulados (VANT) e Veículos Terrestres Não Tripulados (VTNT). O Consenso é uma técnica muito utilizada para movimentações coordenadas em formação de múltiplos agentes, enquanto que a técnica de CPA é tipicamente usada para a navegação com desvio de obstáculos em sistemas multiagente devido à sua simplicidade e eficiência. Apesar da existência de pesquisas envolvendo o uso de CPA e Consenso em conjunto, nenhuma explora a cooperação de veículos com diferentes capacidades de movimentação. Neste artigo, é apresentada uma arquitetura para sistemas multiagente compostos por VANTs e VTNTs para a execução de tarefas em ambientes de operação de exterior usando a técnica de Consenso para a manutenção da formação, e a técnica de CPA para o desvio de obstáculos. São realizados experimentos em simulações com o objetivo de demonstrar que a utilização de CPA e Consenso em conjunto é uma estratégia efetiva para a navegação em formação de um sistema multiagente composto por VANTs e VTNTs, em ambientes onde há a presença de obstáculos.
ARTSIA: Escalabilidade de Aplicações para Sistemas Inteligentes de Transportes em um Ambiente de Computação em Neblina
Authors: Medeiros Thiago , Campos Carlos Alberto
Published: December 2020

Aumentar a eficiência em escalabilidade de aplicações é uma forma de melhorar a entrega de serviços para os consumidores finais. Este artigo propõe uma plataforma chamada ARTSIA (Architecture for Response Time Sensitive ITS Applications), que possui uma arquitetura para apoiar aplicações para Sistemas Inteligentes de Transportes com requisitos mais rígidos de latência e perdas de requisições utilizando computação em neblina. Visando garantir o mínimo de perdas possíveis em requisições oriundas da camada terminal, ARTSIA conta com a proposta de um algoritmo baseado nas redes neurais autorregressivas e em limiares adaptativos de escalabilidade, para analisar os recursos dos servidores em uma solução de computação em neblina e indicar o melhor momento para aumentar ou diminuir a capacidade da infraestrutura que suporta a aplicação de acordo com a demanda gerada em função das variações em sua carga de trabalho. Além disso, fazendo uso de técnicas e políticas de escalabilidade, este trabalho apresenta uma avaliação experimental de diferentes cenários para gerenciar a escalabilidade. Assim, uma com-paração foi realizada entre o algoritmo proposto e algumas técnicas da literatura e os resultados obtidos mostraram uma menor perda de requisições quando se usa o algoritmo proposto.
Classificação de Tweets sobre Trânsito Utilizando Diferentes Técnicas de Deep Learning
Authors: Teixeira Estevan , Moura Pedro , Campos Carlos Alberto
Published: December 2020

No âmbito da mobilidade urbana, a obtenção de informação de forma rápida e localizada para tomada de decisão e um dos principais desafios atuais. Nesse contexto, redes sociais podem funcionar como uma das fontes de extração de conhecimento para diversas tarefas, dentre as quais controle de trânsito. Contudo, tais dados precisam ser bem classificados para garantir que somente informações relevantes sejam utilizadas. Particularmente em países lusófonos, não há muitos estudos sobre tal classificação, em especial explorando o potencial das redes neurais. Assim, este trabalho propõe um modelo de representação e classificação de microtexto para a língua portuguesa através de técnicas modernas de deep learning, com o objetivo de gerar informações de trânsito. Para tal, são analisados os resultados da combinação de diversas arquiteturas de deep learning para representação e classificação, levando a resultados de acurácia e precisão acima de 95%.
Availability Evaluation and Maintenance Policy of Data Center Infrastructure
Authors: Camboim Kádna , Melo Carlos , Araujo Jean , Alencar Fernanda
Published: December 2020

The convergence of communication networks and the demand for storage and processing capacities for large amounts of information, especially in recent years, has driven requests for everything-as-a-service and has been generating, on an increasing scale, demands for new data center constructions. However, to meet dependability attributes, the design of these infrastructures needs to consider, at least, the system’s availability to be achieved. In this paper, we evaluate the availability of a Tier 1 data center infrastructure, considering the use of blade systems. We use modeling techniques based on reliability block diagrams and stochastic Petri nets to simulate a maintenance policy encompassed at different service levels (SLA). The results show dependability metrics, focusing on the availability and maintenance of these networks. We highlight the most severe difficulties in achieving high availability when there is no component redundancy, and the intervals between maintenance are long.
The problem of guilt: Theological and psychological viewpoint
Authors: Gashi Marko
Published: December 2020

The author analyses the problem of guilt from theological and psychological viewpoint. In theological meaning the guilt refers to concepts sin repentance, confession and maturity. In the paper these concepts have been connected with the experience of psychology and therapy.
The contract of reinsurance and of life reinsurance in particular
Authors: Petrović Zdravko
Published: December 2020

The contract of reinsurance is a contract in which one party - the reinsurer undertakes to pay to the other party, the insurer, the entire amount or part of the amount that the latter paid or is supposed to pay to the insured, while the reinsured undertakes to pay the premium to the reinsurer. Life reinsurance is quite distinct from non-life reinsurance. The paper focuses on this distinction. As far as its legal nature is concerned reinsurance is a sui generis contract, binding on both parties, consensual aleatory, successive and informal. Since reinsurance is an international concept, the legal practice has made the legal provisions on reinsurance internationally standardized and accepted.
The decision of promulgation public emergency situation
Authors: Pajvančić Marijana
Published: December 2020

The author explains and analyzes the constitutionality of the promulgation the public emergency. Particularly she analyze and points two questions: the initiation of promulgation public emergency situation and the territorial application the act of public emergency promulgation.
A hundred and thirty years from abolition of corporal punishment in Serbia
Authors: Grubač Momčilo
Published: December 2020

The author describes the historical background, reasons and way of abolition of corporal punishment in Serbia by the law passed on December 11, 1873. An emphasis is put on the report given by Legislative Board of the then People's Assembly, parliamentary debate and the speech delivered by the Minister of Justice. It is also pointed to efforts to reinstate corporal punishment in 1875 and to corporal punishments beyond Criminal law.
Establishment of person
Authors: Kubinjec Janko
Published: December 2020

Personality is not based on the will but on the spirit. The establishment of the "person" as an abstract phenomenon is the beginning of the legal phenomenon. The legal phenomenon begins on the edges of natural and abstract. The subjective legal spirituality is the mere directness of the spirit as the subjective spirit - on contrary, the legal personality is constituted only after abandoning the directness, by externalization which leads to indifferent look onto oneself. The establishment of an individual as a person is conducted solely within the legal phenomenon. The establishment of an individual as a person leads to freedom as an institution, which is exclusive legal category.
Security measure of mandatory psychiatric treatment in freedom
Authors: Drakić Dragiša
Published: December 2020

The paper examines the security measure of mandatory psychiatric treatment in freedom by analyzing the relevant statutory provisions. The author specifically addresses "danger to the environment", which is one of the preconditions for the application of this measure, duration of the measure the possibility of interchanging this measure with another measure of psychiatric character that exists in our criminal law. Upon extensive analysis of the aforementioned questions, the author concludes that there are no justifiable reasons for independent existence of the subject matter security measure in our register of criminal penalties. Nevertheless, he accepts the fact that this is still an independent criminal penalty, and proposes amendments to the relevant statutory provisions aimed at better protection of the rights of mentally disturbed offenders, better protection of citizens from mentally disturbed offenders, and assurance of principle of legality and legal security.
Porque disminuir la pena en los delitos de preparación
Authors: Cruz Palmera Roberto
Published: December 2020

En estas páginas se vuelve a criticar la inclusión de conductas de preparación en el Código Penal español, en concreto, esta contribución se centra en brindar algunos motivos por los cuales se estima necesaria la disminución de las penas actualmente previstas para los denominados “delitos de preparación”. La tesis aquí mantenida se basa en la distinción entre dos etapas de la responsabilidad penal de toda conducta humana: la primera, la relevancia de los efectos o resultados de un delito; la segunda, la valoración de la intensidad de su preparación.In these pages, the inclusion of preparatory actions in the Spanish Penal Code is criticized once more. Specifically, this contribution is centered on providing several motives for which it is judged necessary to reduce the currently defined sentences for the “crimes of preparation.” The thesis maintained here is based on the distinction between two periods of time or basic moments of penal responsibility of all human behavior: the first, the relevance of the effects or results of a crime; the second, the valuation of the intensity of its preparation.
Propuestas de reforma para fomentar la natalidad, la conciliación y la familia en el IRPF
Authors: Martinez Otero Luz
Published: December 2020

España está atravesando una época de grave crisis demográfica y, paradójicamente, en la actualidad, existe una brecha entre maternidad/paternidad deseada y maternidad/paternidad real. Existen diferentes barreras socioeconómicas que contribuyen a que los españoles tengan que sacrificar su deseo de tener más hijos, una de las más importantes, según ha quedado recientemente acreditado por la encuesta publicada por el Instituto Nacional de Estadística (INE. Encuesta de Fecundidad de 28 de Noviembre de 2018), es la dificultad que encuentran los españoles a la hora de conciliar su trabajo profesional con su vida personal. Los tributos tienen una finalidad extra tributaria y pueden ser un instrumento de política fiscal que proteja y promueva los valores protegidos en la Constitución, por ejemplo la familia. Mediante políticas fiscales adecuadas se pueden proteger valores como la maternidad, la paternidad, la conciliación, la corresponsabilidad, la igualdad, la infancia y en definitiva, la familia. El presente artículo analiza el régimen tributario de las prestaciones por maternidad recientemente modificado tras la sentencia del Tribunal Supremo número 1482/2018, profundiza en el papel de  la familia como agente de cambio capaz de revertir el problema demográfico que atraviesa nuestro país y propone medidas tributarias para reformar el Impuesto sobre la Renta de las Personas Físicas (IRPF), medidas que promueven la conciliación, fomentan la natalidad, protegen la paternidad y la maternidad y facilitan el cuidado de los hijos y la atención a las familias.Spain suffers from a major demographical crisis, but, paradoxically, there is a gap between desired and real parenthood as well. There are many socio-economical barriers which contribute to Spaniards giving up their willingness to have children, one of the most important of which is the difficulty to keep a work-life balance (INE 2018). Taxes can become an instrument to a fiscal policy that promotes and protects constitutional values, for instance, the family. Through appropriate fiscal policies taxes can promotes and protects parenthood, work-life conciliation, co-responsibility, equality, childhood and, ultimately, family. This article analyzes the tax regime of maternity benefits recently modified after the Supreme Court 1482/2018, deepens the role of the family as an agent of change capable of reversing the demographic problem that our country is going through and proposes measures tax to reform the Personal Income Tax, measures that, by means of facilitating work-life conciliation, promote natality and remove difficulties from children and family care.
The development of a new generic risk-of-bias measure for systematic reviews of surveys
Authors: Nudelman Gabriel , Otto Kathleen
Published: December 2020

It is important to evaluate risk of bias of the primary studies included in systematic reviews and meta-analyses. Since tools pertinent to surveys are scarce, the goal of the current research was to develop a measure to address this need. In Study 1, an initial list of 10 relevant topics was compiled from previous measures. In Study 2, the list was refined into an eight-item risk-of-bias measure via discussion and a pilot study. In Study 3, experienced researchers used the measure to asses 70 studies, demonstrating high interrater agreement (weighted Kappa = .82). Inexperienced raters also utilized the measure to code 26 different studies included in a prior meta-analysis, which resulted in adequate interrater agreement (weighted Kappa = .64) and excellent convergent validity (r = .66). Thus, the new measure, designed to be accessible and flexible, can increase standardization of risk-of-bias evaluations and contribute to the interpretation of systematic reviews and meta-analytic findings.
Benchmarking and reconciliation with time-varying cross-coefficients
Authors: Rojo-García José Luis , Sanz-Gómez José Antonio
Published: December 2020

In this paper, the authors propose a method to obtain explicit solutions for simultaneous benchmarking and reconciliation problems for a system of variables when the cross-restrictions use time-varying coefficients. The method is based on a hierarchical Bayesian model with a normal-gamma specification for the prior distributions. The proposed solution provides explicit (not sequential) feasible estimations, including measurements for its statistical accuracy. One interesting feature of the proposed procedure is that it allows users to include one or several performance indicators and to estimate disaggregated values for incomplete years. The method is applied to obtain Quarterly Regional Accounts for the Spanish economy.
Estética e humor nos quadrinhos feministas: a reconquista política do corpo pelo riso na HQ A origem do mundo (2018)
Authors: Dantas Daiany Ferreira
Published: December 2020

O presente artigo investiga conceitos da estética, tais como o grotesco e o grotesco feminino, a compreensão bergsoniana do risível e o debate sobre corpo e gênero empreendido pelos estudos feministas, na análise das estratégias de humor presentes na História em Quadrinhos A origem do mundo (2018). Observamos as repetições e as inversões promovidas pela autora Liv Strömquist, ao propor uma história da genitália feminina – suas mutilações, cerceamentos e interdições – e o riso consequente da constatação de hierarquias e incongruências históricas, que resultam cômicas quando colocadas em perspectiva. Como resultado, observamos uma estética feminista empreendida pelo riso, numa leitura que proporciona a reflexão sobre o lugar de autoria das mulheres e as imagens políticas de corpo e corporalidades difundidas em nossa sociedade.
Palavras-chave: Feminismo. Humorismo ilustrado. Histórias em Quadrinhos
A presença das máscaras no ritual de iniciação feminina do povo Tikuna
Authors: Bordin Vanessa Benites
Published: December 2020

Neste artigo será abordada a pesquisa sobre as máscaras da etnia ameríndia Tikuna, localizados na tríplice fronteira entre Brasil, Colômbia e Peru. Trata-se de uma pesquisa teórico-prática, tendo como metodologia a pesquisa autoetnográfica, onde o olhar da artista se evidencia. Assim, a partir de minha convivência com os Tikuna, na aldeia (Nossa Senhora de Nazaré, AM) e em contexto urbano (no Parque das Tribos em Manaus) trarei um pouco sobre esse universo das máscaras que fazem parte do principal ritual Tikuna, de iniciação feminina Worecü, A Festa da Moça Nova, que acontece quando a menina Tikuna tem sua menarca.
O corpo da mulher como morada em Habite-me
Authors: Viana Joana Vieira
Published: December 2020

Este artigo é fruto de diálogo e inte(g)ração com Carolina Garcia, atriz e produtora do espetáculo Habite-me (2019). O espetáculo, definido como teatro de máscaras, dança e bonecos, possui um prólogo e três quadros e trata de temas existenciais, tais como a vida e a morte, a relação com a passagem do tempo e o cuidado com o outro. A proposta, ao vivificar esses temas e entrelaçá-los ao corpo de uma mulher, também realiza um diálogo com os demais elementos da cena, adquirindo diferenciados contornos e os expandindo. Habite-me é fruto de um intercâmbio realizado entre artistas do Brasil, do Canadá (Cie.Territoire 80) e da Bélgica.
Om at måle lærernes differentieringspraksis
Authors: Graf Stefan Ting , Carlsen Dorthe
Published: December 2020

Kan man måle læreres differentieringspraksis, og i så fald hvordan? Hvad kanstørre kvantitative undersøgelser af læreres diff erentieringspraksis vise? Og hvorforer spørgsmålet om operationalisering af diff erentieringsbegrebet interessant ogvigtigt?Ved at præsentere fi re teoretiske forståelser af undervisningsdiff erentieringudfordres den forestilling, at der kun fi ndes ét diff erentieringsbegreb. På dennebaggrund analyseres fem danske, kvantitative spørgeskemaundersøgelser af læreresdiff erentieringspraksis med henblik på en sammenlignende opstilling. Det viser sig, at undersøgelserne måler forskellige ting, og at deres resultater ikke bare kan sammenlignes. Der er behov for en metodisk mere grundig tilgang til den slags målinger, som ofte har uddannelsespolitisk betydning. I kvantitative undersøgelser vedrører operationalisering af den afhængige variabel undersøgelsens validitet og afspejler samtidigt i høj grad et syn på, hvad didaktiske fænomener som undervisningsdifferentiering er eller bør være.

Artiklens formål er at diskutere indholdsmæssige og metodiske problemstillinger for, hvordan man kan undersøge differentieringspraksisser på et pædagogisk og dannelsesteoretisk grundlag.
Trædeild og skattegravning
Authors: Danielsen Martin Sejer
Published: December 2020

I artiklen analyseres eksempler på den folkloristiske genre sagn fortalt af den sønderjyske fortæller Christian C. Haugaard (1836-1920) i forhold til hans person og den tid, han levede i. Haugaard blev interviewet i Aabenraa i 1894 og 1902 af folkemindesamleren Evald Tang Kristensen (1843-1929), og særligt to sagn fremhæves. Det ene sagn er inspireret af en litterær kilde, og det peger på Haugaards forhold til øvrigheden i den daværende tyske provins. Det andet sagn viser noget om Haugaards holdning til den økonomiske vækst i landsdelen i forhold til hans egne bestræbelser på at få del i den forøgede velstand.
Un docente revolucionario para la formación artística (decolonial) contemporánea
Authors: Jimenez Roberto
Published: December 2020

Cualquier propuesta curricular implica la consonancia entre las estructuras educativas (alumno, maestro, escuela, personal administrativo y comunidad) y para el logro, es imprescindible una responsabilidad compartida, nadie menos o más que otro; sin embargo, el papel que representa el docente es trascendental, dado que como mediador es en quien, por lo regular, recae gran parte de la responsabilidad de que el engranaje entre todos los elementos funcione y, específicamente, que los contenidos educativos acordados se cumplan cabalmente. Desde el campo de la instrucción artística (formal o informal) la figura del docente debe evaluarse también bajo estas expectativas de cambio; la disrupción del arte hacia otros espacios obliga a que, quien desempeñe el papel de profesor se vuelque a la búsqueda de rutas libres para que el proceso formativo transforme al alumno (al creador) en un individuo crítico y propositivo; orientándolo a la decolonialidad para que su producción artística deje de depender del aval hegemónico que la ha mantenido invisibilizada. Compromisos todos, que hoy resultan impostergables donde también al arte se le exijan otras responsabilidades más allá de la consabida funcionalidad de emocionar y ser fin monetario; convenios necesarios dirigidos hacia objetivos cada vez más ligados a la realidad social que se vive, con metas que aporten a la edificación de una sociedad diferente, honesta y justa.
Educación artística y teorías implícitas del alumnado de educación secundaria.
Authors: Navarrete Cristina , Rodríguez Carmen , Belver José Luis
Published: December 2020

El presente artículo analiza las teorías implícitas de los estudiantes de la ESO en relación con la Educación Artística y, en concreto, a la materia Educación Plástica Visual y Audiovisual que suponen un obstáculo en el aprendizaje de esta.  Para ello se ha diseñado una investigación cualitativa utilizando como instrumentos de recogida de datos la observación participante en el aula de plástica diariamente durante 4 meses y el análisis de contenido de varias actividades gráfico-plásticas realizadas por el alumnado. La muestra está compuesta todos los estudiantes de 3º de ESO de un instituto del centro de Oviedo divididos en 5 grupos (88 alumnos/as en total). La información registrada en el diario de campo se analiza a través de un sistema de categorías que comprende la motivación del alumnado participante ante la materia, el autoconcepto y creencias de autoeficacia del alumnado participante, la calidad de las producciones gráfico-plásticas y otras percepciones del entorno. Los resultados de la investigación constatan que, aunque el alumnado en general valora y muestra interés por la materia, existen una serie de teorías implícitas relacionadas con ciertos mitos que se asocian a la Educación Artística. Esta detección de preconceptos en nuestra área nos permite llevar a cabo una investigación posterior, más amplia, para modificar estas ideas preconcebidas y facilitar su aprendizaje de nuestro alumnado en el ámbito artístico.
El cuerpo como dispositivo didáctico en la formación inicial docente en artes visuales para enseñanza secundaria
Authors: Cortes Luis Claudio , Grinspun Noemi , Medina Sandra , Oyarzún Claudio Humberto
Published: December 2020

El presente artículo corresponde a una experiencia pedagógica implementada al interior de un programa de formación de profesores/as en artes visuales, cuyo futuro contexto de desempeño laboral son los niveles de enseñanza secundaria en el contexto escolar chileno. Su objetivo principal es reflexionar teóricamente en torno al cuerpo y sus posibilidades pedagógicas, a partir de la implementación de estrategias de enseñanza y aprendizaje de las artes visuales que involucran la practica corporal como dispositivo didáctico. Bajo una metodología de Proyectos de Aprendizaje Expresivos define tres talleres teóricos/prácticos en torno al cuerpo al interior de un programa formación de profesores/as en artes visuales en Chile. Tras la implementación de cada taller, describe la reflexión de la práctica corporal con el ámbito teórico de la política del cuerpo, la corporeización de la identidad profesional y la cognición corporeizada. A modo de conclusión, permite reflexionar en torno al tránsito de una enseñanza disciplinar de las artes visuales hacia su integración interdisciplinar, entrelazando el ámbito de las humanidades con la cognición humana corporeizada. Finalmente sugiere tres talleres interdisciplinares que entrelazan literatura, teatro y cine, a partir del lenguaje y expresión corporal para programas de formación inicial de profesores/as en artes visuales.
Instituciones educativas y entornos de aprendizaje en Baukultur
Authors: Huerta Ricard
Published: December 2020

Baukultur se ocupa del diseño, planificación y co-construcción de nuestro entorno. Es, cada vez más, objeto de diversos programas de aprendizaje para niños y jóvenes. Por primera vez, este estudio explora cómo los jóvenes perciben estos programas y los incorporan a su vida cotidiana. Además, se estudia cómo asimilan importantes experiencias biográficas y decisiones relacionadas con Baukultur a diario, no solo remodelando sus propias cuatro paredes, sino también mientras viajan y en el universo online.
Créditos EARI 11
Authors: Domínguez Ricardo
Published: December 2020

Datos publicación EARI 11.
Fraseodidáctica. Marcos situacionales para trabajar los Enunciados Fraseológicos en la clase de PLE para hispanohablantes
Authors: García Benito Ana Belén
Published: December 2020

El objetivo de este trabajo es delimitar las funciones pragmático-discursivas de algunos de los Enunciados Fraseológicos más habituales del portugués, ofreciendo los “marcos situacionales” (Corpas Pastor, 1996) que harán posible su comprensión y funcionamiento por parte de estudiantes hispanohablantes. Los “marcos situacionales” que ofrecemos los encuadran en la interacción dinámica existente entre hablante y oyente, proporcionando toda la información necesaria para su uso: características de los participantes en la interacción, del escenario, su motivación, el contexto –secuenciación, elementos prosódicos, lenguaje no verbal, registro–, variantes, sinónimos, así como los conocimientos socioculturales compartidos por los hablantes.
Interfaces entre didáctica y lingüística: las variedades europea y brasileña del portugués en la didáctica del portugués como lengua extranjera y la competencia variacional receptiva
Authors: Meisnitzer Benjamin
Published: December 2020

El portugués brasileño (BP) y el europeo (EP) son ejemplos prototípicos de una lengua pluricéntrica, mientras que el caso de las distintas variedades africanas es más discutible. Las variedades lingüísticas son un desafío para la didáctica del portugués como lengua extranjera (L2 o L3) y lengua de herencia. Por ello, la presente contribución pretende discutir las ventajas de un acercamiento a la lengua extranjera (LE) a través de la enseñanza de una sola variedad o de aproximación pluricéntrica. En un segundo paso, presentamos algunas características relevantes para la adquisición de la competencia receptiva de la variedad brasileña en la enseñanza del portugués como LE, proponiendo también posibles vías didácticas para esta. El objetivo es la formación de hablantes de portugués L2 o L3 que tengan un buen dominio hablado y escrito en distintos contextos comunicativos y tradiciones discursivas.
Topological properties of artificial bandgap materials
Authors: Sun Xiao-Chen  , He Cheng  , Lu Ming-Hui  , Chen Yan-Feng  ,   National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China;,   Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
Published: December 2020

Recently, artificial bandgap materials (such as photonic crystals and phononic crystals) have been becoming the research hotspot of the next generation intelligent materials, because of its extremely designable, tunable and controllable capacity of classical waves. On the other hand, topological material phase, originally proposed and first demonstrated in Fermionic electronic systems, has been proposed in more and more Bosonic systems. In this review paper, we first focus on some of the representative photonic/phononic topological models, and four common types of topological photonic system are discussed:1) photonic/phononic quantum Hall effect with broken time-reversal symmetry; 2) photonic topological insulator and the associated pseudo-time-reversal symmetry protected mechanism; 3) time/space periodically modulated photonic Floquet topological insulator; 4) a summary and outlook including a brief introduction of Zak phase in one-dimensional systems and Weyl point in three-dimensional systems. Finally, the underlying Dirac model is analyzed.
Effect of contrast threshold function correction on NVThermIP model
Authors: Wu Yuan-Qing  , Wang Yang  , Zhang Yan-Tao  , Zhang Yu-Feng  , Liu Chun-Mei  ,   School of New Energy, Bohai University, Jinzhou 131012, China;,   Northwest Institute of Mechanical and Electrical Engineering, Xianyang 712099, China
Published: December 2020

With the innovation of infrared imaging technology, the performance evaluation of the infrared imaging system plays an indispensable role in the general technology. Therefore, the establishment of a comprehensive, scientific and reasonable performance evaluation model is a prerequisite for accurately predicting the performance of the imaging system, and is also an effective technology to design and develop the high performance imaging system. According to previous studies, in this paper we analyze the key problems that need to be solved urgently in the current research and the factors limiting the development of performance evaluation techniques. The main researches of this paper are as follows. 1) Through improving the deficiencies of the inherent physical effect evaluation methods, the accuracy and reliability of the performance evaluation model are enhanced. 2) In order to meet the needs of performance optimization design, the performance parameters provided by product design and production requirements must be selected correctly to achieve an organic combination of performance evaluation model and imaging system.The NVThermIP model, a widely used performance evaluation model, is slightly inadequate for guiding the optimization of the parameters of an infrared system. A more scientific and reasonable performance evaluation model is proposed in this paper, in which the contrast-threshold function of the system in the NVThermIP model is corrected by noise equivalent temperature difference based on the theory of the human-eye noise. By quantitatively analyzing the typical physical effects on infrared imaging system, the modeling theory and process of NVThermIP model are introduced in detail. The simulation results give a visual representation of evaluating the performance of an infrared imaging system. The limitations of the NVThermIP model used to guide the design and production of the system and the deficiencies of the early theoretical basis for system optimization design are analyzed. The noise equivalent temperature difference is introduced to revise and perfect the NVThermIP model combined with the theory of human eye noise. The accuracy of the newly proposed model is verified by two experiments. Experimental results show that the corrected model is more accurate in system prediction and can be used to guide the design of a new system.
Spontaneous formation of ordered waves in chaotic neuronal network with excitory-inhibitory connections
Authors: Wang Peng  , Li Qian-Yun  , Huang Zhi-Jing  , Tang Guo-Ning  ,   College of Physical Science and Technology, Guangxi Normal University, Guilin 541004, China
Published: December 2020

Spiral waves are a particular form of propagating waves, which rotate around a center point known as a rotor. Spiral waves have been found to play an important role in cardiac arrhythmia. Using voltage-sensitive dye imaging, one can find that spiral waves and plannar waves can occur in the mammalian cortex in vivo. The electrode array conduces to discovering that the seizures may manifest as recurrent spiral waves which propagate in the neocortex. However, the formation mechanism of the ordered waves and its potential function in the nervous system remain uncertain. In order to understand the formation mechanism of the ordered waves, we construct a double-layer two-dimensional -network of neuron, which is composed of nearest-neighbor excitatory coupling and long-range inhibitory coupling layers. The inhibitory grid points account for 25% of total number of grid points in the network. We propose a modified Hindmarsh-Rose neuron model to study whether differently ordered waves can occur spontaneously in the chaotic neuronal network evolving from the initial state with a random phase distribution. The numerical simulation results show that when the inhibitory coupling strength is small the spontaneous formation of ordered wave does not generally appear in the network. The larger inhibitory coupling strength, the more easily the system generates an ordered wave for sufficiently large strength of excitatory coupling. The appearance of differently ordered waves is closely related to the initial state of the system and coupling strength. As the excitatory and inhibitory coupling strengths are appropriately selected, the system can spontaneously generate the maze pattern, planar wave, single spiral wave, multiple spiral wave, paired spiral waves rotating in the opposite directions, two-arm spiral wave, target wave and inward square wave and so on. The probability for spontaneously forming a single spiral wave is far less than that for forming a small spiral wave. The occurrence probabilities of spiral wave, maze pattern and inward square wave reach 27.5%, 21.5% and 10%, respectively. The maze pattern is composed of many plane waves with different propagation directions. The occurrence probabilities of other ordered waves are quite small. These results conduce to understanding the self-organization phenomena occurring in the cerebral cortex.
A novel method to measure prompt fission neutron spectrum based on fission γ tagging technique
Authors: He Tie1\2\3  , Xiao Jun2\3  , An Li2\3  , Yang Jian2\3  , Zheng Pu2\3  ,   Key Laboratory of Radiation Physics and Technology, Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China;,   Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;,   Key Laboratory of Neutron Physics, China Academy of Engineering Physics, Mianyang 621900, China
Published: December 2020

The high-accuracy nuclear datum of prompt fission neutron spectrum (PFNS) is not only an important parameter for evaluating nuclear data, but also relevant to a more fundamental understanding of the fission process. However, the PFNS experimental data of main actinides (uranium and plutonium) are very scarce and the existing experimental data are in significant discrepancy. The error of some experimental data is markedly large:the relative uncertainty value reaches above 30%. In order to clarify these discrepancies and reduce the uncertainty, more reliable and accurate fission spectrum measurements are necessary. Most of the traditional measurements of the PFNS rely on time-of-flight technique. In this technique the fission sample needs to be prepared in a fission chamber and the fission neutron is identified by fission fragment. Since the particle range of fission fragment is very short, the thickness of sample is limited. So the number of samples cannot be large and the statistic count of fission neutrons will not be great either. Now a new technique to measure PFNS has appeared based on fission gamma multiplicity, which could be used to discriminate fission neutron from other neutrons. The new technique is based on a physical fact:when a fission event happens, seven-to-eight associated gamma photons are emitted while the inelastic scattering effect emits only one or two associated gamma photons. Accordingly, the fission neutron could be discriminated from other neutrons by fission gamma multiplicity. The principles of the new method and the realizing approach are presented in detail. The experimentally measuring system is established. A spontaneous fission neutron source 252Cf is used to measure the PFNS in order to validate the measuring system. The measured spectra are compared with those of ENDF/B-VⅡ library. The PFNS of 238U induced by D-T neutron is measured by the measuring system. The results show that the new method based on fission gamma identification is be available in the measuring of PFNS. The identification efficiency, the total uncertainty analysis of the new method and the suggestion for improvements in the future are also included in the paper.
Anomalous light-to-electricity conversion of low dimensional semiconductor in p-n junction and interband transition quantum well infrared detector
Authors: Liu Jie  , Wang Lu  , Sun Ling  , Wang Wen-Qi  , Wu Hai-Yan  , Jiang Yang  , Ma Zi-Guang  , Wang Wen-Xin  , Jia Hai-Qiang  , Chen Hong  ,   Key Laboratory for Renewable Energy, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;,   University of Chinese Academy of Sciences, Beijing 100049, China
Published: December 2020

Recently, high localized carrier extraction efficiency and enhanced absorption coefficient were observed in low-dimensional semiconductor within a p-n junction. In this work, we report the discovery and verification of the phenomenon, and the performance of the first photon detector based on the interband transition of strained InGaAs/GaAs quantum wells (QWs). By introducing the resonant excitation photoluminescence, the same phenomena are observed in several different material systems. More than 95% of the photoexcited carriers escape from InGaN/GaN QWs, and 87.3% in InGaAs/GaAs QWs and 88% in InAs/GaAs quantum dots are observed. The external quantum efficiency of the device is measured to be 31% by using an absorption layer with only 100 nm effective thickness in the case without an anti-reflection layer. Using such a high value of quantum efficiency, an absorption coefficient of 3.7104 cm-1 is calculated, which is obviously larger than previously reported values. The results here demonstrate the possibility of fabricating high-performance and low-cost infrared photon detectors.
Development of new lithium battery materials by material genome initiative
Authors: Xiao Rui-Juan  , Li Hong  , Chen Li-Quan  ,   Key Laboratory for Renewable Energy, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Published: December 2020

After the continuous research on the discovering new materials based on theoretical methods and material genome initiative, the high-throughput simulation platform is established. With this new research mode and platform, the screening, optimization and design of lithium battery materials are realized by using lithium migration properties as criteria. The attempt at introducing machine learning method into material design is also made. With the high-throughput bond-valence calculations, two coating materials for Li-rich cathode are found, the modified -Li3PS4 and a new layered oxysulfide as novel lithium superionic conductors are designed, and the relationship between the volume change of electrode during delithiation and the atomic structure is investigated. The application of the material genome method to the development of lithium battery materials provides the possibility to promote this new research and development model in other types of materials.