bluuebunny/crossref_metadata_2025 huggingface dataset:
Editorial
Authors: Menna Barreto Ricardo
Published: June 2023

[Quadro XXI. Noite de Santa Valburga. Montanhas de Harz. Região de Schirke e Elend, Cena 1, Fausto e Mefistófeles]. Fausto:“Se há gosto que me encante na jornada que faço, é isto: ir à vontade vendo este labirinto e sua variedade [...]; Poderá resistir a natureza humana a tais influições?”   Campo Jurídico é como a narrativa goetheana: um “labirinto variado”, onde o leitor de espírito vigilante, crítico e reflexivo, ao trilhá-lo, possivelmente não resistirá às influições teóricas contidas nesse espaço jurídico-doutrinário. Jubilosos, abrimos, goetheanamente, o Editorial deste vol. 2, nº 2, de Campo Jurídico – Revista de Direito Agroambiental e Teoria do Direito. Em seu segundo ano de existência, este jovem periódico jurídico, forjado no caloroso (humano e climático) oeste baiano, vem, ao mesmo tempo, para registrar e aquecer o debate doutrinário que envolve a dogmática agro-ambiental e a teoria do direito.
Direito Ambiental: Contornos Metodológicos e Autonomia
Authors: Maia Fernando Joaquim Ferreira
Published: June 2023

O objetivo deste artigo é entender como a teoria geral do direito ambiental se estrutura para regular as relações sociais que se passam na gestão dos recursos naturais na perspectiva de uma racionalidade ambiental crítica ao capitalismo e que considere a dignidade da pessoa humana a partir do mundo do trabalho. Distinguem-se os fundamentos teóricos e metodológicos do direito ambiental, aborda-se, especificamente a evolução do direito ambiental no Brasil, a sua relação com a sociedade de risco e com o bem ambiental. Defende-se que, em decorrência das contradições sociais geradas pela economia de mercado, impactadas pela revolução tecnológica nas forças produtivas do capitalismo brasileiro, o direito ambiental é transformado num ramo autônomo do direito, dotado de objeto, princípios, objetivos, características e natureza jurídicos próprios.
Direito, Decisão Jurídica e Pós-Modernidade: os Novos Vínculos com o Futuro
Authors: Lazzarotto Simioni Rafael
Published: June 2023

Este artigo objetiva analisar algumas influências do discurso da pós-modernidade no direito, especialmente a relação entre as formas de sociedade e os motivos do ceticismo pós-modernista no direito. O discurso da pós-modernidade é um tipo de discurso cético sobre o futuro, que afirma o esgotamento dos ideais de emancipação social que se seguiram à Modernidade. No âmbito do direito, esse tipo de discurso produziu muitas influências, inclusive sobre algumas concepções pós-positivistas pragmatistas. Entretanto, a decisão jurídica sempre possui um futuro aberto na forma de um horizonte a ser construído, que permite articular a tensão política entre constitucionalismo e democracia de um modo criativo e, assim, criando novos vínculos com o futuro.
Análisis de la Ley Orgánica de Tierras Rurales y Territorios Ancestrales Ecuatoriana, de 2016
Authors: Ditto José Santos
Published: June 2023

Comenzando con una breve revisión histórica, este artículo pretende exponer las razones principales que determinan la improcedencia de la Ley Orgánica de Tierras Rurales y Territorios Ancestrales, la que se publicó en el Suplemento del Registro Oficial N.-711, de 14 de marzo de 2016.
Evolução do Sistema Jurídico: a Probabilidade do Improvável
Authors: Vilela Berbel Vanessa
Published: June 2023

A partir de uma estreita colaboração interdisciplinar entre sociologia do direito e teoria do direito, Niklas Luhmann propõe a renovação das observações do princípio evolutivo do direito, afastando-se das perspectivas naturalistas e historicistas. A perspectiva apresentada neste artigo se embasa na abordagem luhmanniana, segundo a qual a evolução vem concebida como acréscimo de complexidade, em outros termos, incremento da diversidade de situações e dos eventos possíveis. Expor o caminhar desta perspectiva evolutiva e os efeitos para a compreensão da formação do sistema jurídico moderno são os objetivos deste artigo. Ao final, chega-se à conclusão de que, apesar de não se poder compreender evolução como um caminho sem volta, a formação do sistema jurídico moderno dependeu de condições sociais pelas quais o direito especificou suas próprias estruturas. São apresentadas ao leitor as “conquistas evolutivas” conferidas pelo desenrolar histórico ao sistema jurídico para que se chegasse à configuração hodierna.
Direito e Movimentos Sociais no Brasil: um Estudo a Partir das Audiências Públicas do Supremo Tribunal Federal
Authors: Maia Selmar José , Martini Sandra Regina
Published: June 2023

Para refletir sobre as limitações e possibilidades do direito atual, analisaremos os novos movimentos e 19 audiências públicas. Em um primeiro momento, disserta-se sobre a importância desses eventos para a sociedade brasileira, destacando-se, sobretudo, as irritações provocadas pelos movimentos de protesto aos demais subsistemas sociais. Ainda, frisa-se a importância das ferramentas tecnológicas, principalmente a internet como forma de acoplamento, aperfeiçoamento e concretização da democracia brasileira. Já na última parte do presente artigo, discorre-se sobre as audiências públicas e a (im)possibilidade desses eventos serem uma ponte para participação efetiva dos cidadãos, considerando que buscam debater temas de grande repercussão geral e que ainda carecem de análise jurídica por meio do Supremo Tribunal Federal. Por fim, destaca-se que as audiências analisadas no presente artigo não excluem as contribuições de outras audiências nos mais diversos órgãos públicos e jurídicos.
Evolução da Revista Campo Jurídico
Authors: Pacheco Cristiane Gabriel
Published: June 2023

A CAMPO JURÍDICO: Revista de Direito Agroambiental e Teoria do Direito é um periódico peer-reviewed, é uma iniciativa do Curso de Direito da Faculdade São Francisco de Barreiras (FASB), sendo mantida pelo Instituto Avançado de Ensino Superior de Barreiras (IAESB), lançada em 2013 (migrada para o formato online em 2015), e que representa uma expressiva conquista que acarreta importantes resultados para os programas de Pós-Graduação brasileiros, e fundamentalmente para a área do Direito e Direito Agroambiental.
A Identidade dos Sujeitos em Stuart Hall e a Catástrofe da Barragem de Fundão, na Cidade de Mariana
Authors: Costa Gilberto Pereira da , Rondon Filho Edson Benedito
Published: June 2023

Objetivo do estudo: Analisar os reflexos da catástrofe da barragem de Fundão em Mariana – MG - na sociedade brasileira contemporânea, com ênfase na identidade dos sujeitos pertencentes à população atingida e no ordenamento jurídico pátrio.Metodologia/ abordagem: A abordagem é qualitativa com uma fase exploratória fundada na pesquisa bibliográfica, seguida de fase descritiva analítica com suporte no método dedutivo.Originalidade/ Relevância: Explicitar os valores identitários dos sujeitos vitimados pelo rompimento da barragem do Fundão em Mariana, Minas Gerais, com base nos conceitos de identidade de Stuart Hall.Principais resultados: A partir do levantamento dos valores e sugestão de resgate das identidades em apreço, chegou-se a uma aproximação do comportamento do Direito, normas e diretrizes em relação aos grandes empreendimentos minerários no Brasil e como estão sendo tratados no âmbito administrativo, onde prevalece a discricionariedade dos atos.Contribuições teóricas/ metodológicas: Defesa do Princípio da Segurança Licenciária na Perspectiva Humana, consolidando medidas de proteção proativas.Contribuições sociais / para a gestão: Proposta de proibição do método de construção de barragens à montante e respeito aos valores identitários da população afetada pelo empreendimento, bem como, a transferência aos interessados na construção das barragens a obrigatoriedade de arcar com as despesas de segurança prévia, onde somente após adoção dessas medidas se poderá dar início às operações de potencial risco.
Aromatic C–H bond functionalization through organocatalyzed asymmetric intermolecular aza-Friedel–Crafts reaction: a recent update
Authors: Biswas Anup
Published: June 2023

The aza-Friedel–Crafts reaction allows an efficient coupling of electron-rich aromatic systems with imines for the facile incorporation of aminoalkyl groups into the aromatic ring. This reaction has a great scope of forming aza-stereocenters which can be tuned by different asymmetric catalysts. This review assembles recent advances in asymmetric aza-Friedel–Crafts reactions mediated by organocatalysts. The mechanistic interpretation with the origin of stereoselectivity is also explained.
Terrorism and Global Security: A Study of Islamic State of Iraq and Syria (ISIS)
Authors: Elemanya A. Vincent
Published: June 2023

This paper attempts to examine terrorism as a threat to global security with a particular focus on the Islamic State of Iraq and Syria (ISIS). The ISIS was able to escalate the use of terrorism to a level beyond other terrorist groups in threatening global security. Their use of extreme violent tactics like beheadings, crucifixion and burning alive of their victims under their self-declared caliphate shocked the whole world and prompted them to rise in unison to curtail their reign of terror that spanned territories in Iraq and Syria. Terrorism has become a political weapon in the arsenal of the terrorists in terrorizing political opponents, causing fear and thereby threatening global peace and security. Status quo actors such as states often tend to abuse the term to define its actions and interests in opposition to those of the terrorists. The causes espoused by groups resorting to terrorism are varied which include ethno-nationatism and separation, left-wing revolution, religious or right-wing extremism etc. The frustration-aggression theory was used as a framework to explain these variables. The paper recommended among other options, the use of credible and actionable intelligence with military option to dismantle ISIS on a permanent basis. It concluded that until religion ceases to be a strong motivation for violence against others, terrorism will continue to pose a threat to global peace and security.
Discovery Learning Method As An Effort In Increasing Student Learning Activity In Islamic Education Subjects
Authors:   Institut Agama Islam Negeri Kerinci, jalwis jalwis
Published: June 2023

Pendidikan pada hakekatnya suatu proses yang dilakukan dengan keadaan sadar dan terencana untuk mewujudkan tujuan yang ingin dicapai oleh komponen pendidikan terhadap peserta didik dan penggunaan metode strategi discovery learning diharapkan dapat memperbaiki proses pembelajaran di kelas. Tujuan dalam penelitian ini ialah untuk mengetahui penerapan metode discovery learning, dampak penerapan metode discovery learning terhadap peningkatan keaktifan belajar siswa pada pembelajaran PAI di kelas VIII dan hambatan serta solusi yang ditemukan dalam menerapkan metode discovery learning pada mata pelajaran PAI. Penelitian ini merupakan penelitian Penelitian lapangan (field research) ini yang berhubungan dengan analisis pembelajaran Pendidikan Agama Islam dengan penerapan metode Discovery Learning pada kelas VIII di Sekolah Menengah Pertama Negeri 4 Sungai Penuh. Penelitian ini mendapatkan hasil akhir bahwa di SMP Negeri 4 Sungai Penuh penerapan metode discoveri learning dalam pembelajaran PAI untuk mengaktifkan belajar siswa kelas VIII di SMP Negeri 4 Sngai Penuh diantaranya: Meminta siswa untuk menjelaskan materi yang telah di berikan sesuai dengan pemahaman siswa, untuk dijelaskan di depan kelas, siswa berinteraksi dengan teman temannya di kelas dengan demikian diharapkan dapat menemukan jawaban yang sempurna, dan siswa menulis hasil penemuan yang mereka simpulkan dari diskusi sebelumnya.
Classroom Management In Improving Learning Effectiveness
Authors:   Program studi Megister Manajemen pendidikan agama islam, Fakultas Tarbiyah dan Ilmu Keguruan. UIN Kiai Haji Achmad Siddiq Jember, Jawa Timur, Indonesia, Tufail Ilfan , Al Haj Zaini Zainuddin ,   Program studi Megister Manajemen pendidikan agama islam, Fakultas Tarbiyah dan Ilmu Keguruan. UIN Kiai Haji Achmad Siddiq Jember, Jawa Timur, Indonesia, Rodliah St. ,   Program studi Megister Manajemen pendidikan agama islam, Fakultas Tarbiyah dan Ilmu Keguruan. UIN Kiai Haji Achmad Siddiq Jember, Jawa Timur, Indonesia
Published: June 2023

Classroom management is a series of activities that teachers consciously carry out in an effort to create and maintain optimal learning conditions. This study uses qualitative research with a descriptive approach, with data collection techniques through observation, interviews and documentation. To analyze the data used descriptive qualitative method. The results of the study show that class management in improving learning effectiveness at MA Miftahul Ulum, it can be concluded that class management can indeed increase learning effectiveness at MA Miftahul Ulum Besuki, Situbondo and all homerooms and teachers are always working to improve class management so that the student learning process increase may occur.
La acción de prescripción extintiva de obligaciones de carácter dinerario según el código orgánico general de procesos
Authors: Crespo Rodas Fabián Andrés , Terán Suárez José Luis
Published: June 2023

El presente estudio tiene como finalidad realizar un análisis de la acción de prescripción extintiva de obligaciones de carácter dinerario según el Código Orgánico General de Procesos, institución que se encuentra en el Código Civil Título XL. De la Prescripción, Art. 2392 de Ecuador. El estudio trata de una investigación cualitativa, con una base de 18 artículos seleccionados de: Ebsco, Scielo, Dialnet, World Wide Science.org, Redib, y principales repositorios de posgrado. Además, se incluyó una entrevista de 5 preguntas que fueron aplicadas a Jueces de la Sala Especializada de lo Civil y Mercantil de la Corte Nacional de Justicia. Como resultado se evidenció que el Art. 2392 de Ecuador del Código Civil, el cual consta en el Código Orgánico General De Procesos, no tienen una función real dentro de este país. De acuerdo al planteamiento evidenciado por diversos autores, el objetivo de la prescripción, no solo busca extinguir una obligación para el “deudor”, misma que tiene un claro trasfondo patrimonial, sin embargo, también su principal orientación se centra en proporcionar seguridad y certeza a los vínculos jurídicos evitando la indefinición obligacional en el transcurrir del tiempo, así como arbitrariedades por parte de la parte acreedora.
El derecho a la salud de las personas adultas mayores durante la pandemia del COVID-19
Authors: Zambrano Murillo María Mercedes
Published: June 2023

Durante la pandemia del Covid- 19 el derecho a la salud enfrentó graves restricciones como consecuencia del colapso del sistema sanitario, en este contexto los adultos mayores se ubican entre las personas de mayor afectación por las múltiples limitaciones que les impedían acceder a los servicios de salud. Como grupo de atención prioritaria de acuerdo a lo previsto en el marco constitucional del Ecuador los adultos mayores deben tener atención preferente y especializada en el ámbito de la salud, sin embargo, existieron graves restricciones en torno al ejercicio de este derecho. El objetivo del estudio es analizar el derecho a la salud de las personas adultas mayores durante la pandemia del COVID-19, su metodología es cualitativa, se utiliza la técnica de la entrevista, en su desarrollo se analiza doctrina, jurisprudencia y normas jurídicas que dan sustento teórico al estudio.  Se concluye que durante la pandemia del Covid-19 el derecho a la salud de las personas adultas mayores fue restringido como consecuencia de la ineficiencia del Estado para garantizar el acceso a los servicios sanitarios.
Validación de la Evaluación Cognitiva de Montreal en adultos mayores ecuatorianos
Authors: Matovelle Romero Luis Felipe , Quito Parra Rubén Darío , Espinoza Palomeque Gustavo Adolfo
Published: June 2023

El objetivo principal de la presente investigación es analizar las propiedades psicométricas y la validez discriminativa del MoCA en adultos mayores en la población ecuatoriana. La metodología fue de tipo mixto, de corte transversal, descriptivo, correlacional y no experimental, la muestra estudiada comprendió doscientos hombres y mujeres de sesenta años en adelante y se divido en dos grupos (demencia y normales) de los centros geriátricos de la ciudad de Cuenca: Centro de atención al adulto mayor y El Hogar de los Abuelos, se utilizaron como instrumentos de recolección: El MoCa-S, MMSE Test de Folstein, Test del informador, Test de depresión de Yesavage, que sirve como prueba de contraste para determinar la validez discriminativa del MoCa-S. Los resultados fueron procesados en el software estadístico R. En los resultados se evidenció la fiabilidad y validez de la evaluación cognitiva de Montreal en adultos mayores.
NIC 16 y tratamiento contable en el sector eléctrico, 2022
Authors: Suárez Lainez Fabiola Mariuxi , Olives Maldonado Juan Carlos
Published: June 2023

El objetivo del trabajo de investigación es la aplicación de la NIC 16 relacionada al tratamiento de propiedad, planta y equipo, proporcionando control de su importe depreciable y revalorización de sus activos tangibles a través de la creación de métodos de revalorización de los bienes y sus registros contables. Sin embargo, existe información donde una gran dotación de bienes tangibles, no han sido consideradas para su revaluación, lo cual genera pérdidas y que los funcionarios de CNEL EP Unidad de Negocio Santa Elena incurran en el incumplimiento de la normativa, el método aplicado fue deductivo, con enfoque cualitativo y cuantitativo. En el sector eléctrico se ubican 11 empresas, de las cuales se escoge una y se la segmenta con las áreas que tienen relación al objeto de estudio, correspondientes a 12 servidores públicos. Se implementó la técnica de la entrevista a los funcionarios relacionados y el análisis de la información financiera de la empresa para constatar los procedimientos y el tratamiento contable de los activos, con el propósito de validar la revaluación de los mismos. Se concluyó que la aplicación de la NIC 16 en el sector eléctrico es fundamental para la gestión eficiente de los activos y su rentabilidad.
La indagación como modelo de aprendizaje para la optimización del Sistema Educativo
Authors: Rentería Córdoba Zamira
Published: June 2023

La educación es un campo que está sujeto a un cambio continuo y permanente; la forma en la que transmite el conocimiento a los educandos debe responder a las exigencias de la realidad en la que se encuentra, de manera que, la formación de los estudiantes sea íntegra, consiguiendo una construcción que a futuro, contribuya con el funcionamiento eficiente del mundo laboral. Por ende, los modelos de aprendizaje son de vital trascendencia para lograr el carácter de “significativo”; el cual hace referencia a aquel conocimiento que es replicable en la realidad inmediata del individuo; motivo por el cual, se describe, a modo de ensayo, el término de indagación, que transcurre desde su definición, características, metodología, autores o representantes que han aportado ideas, las actividades propuestas para su desarrollo, los beneficios de su práctica; todo bajo la percepción de analizar su relevancia en la optimización del Sistema Educativo.
Estrategias didácticas para el cumplimiento del enfoque curricular de la UNP
Authors: Brítez Caballero Gladys Emilce , Gómez Duarte José María
Published: June 2023

Este trabajo de investigación presenta los principales resultados sobre las Estrategias didácticas para el cumplimiento del enfoque curricular de la UNP. Se realiza un estudio descriptivo-evaluativo no experimental, con el objetivo de analizar las estrategias didácticas aplicadas por los docentes para el cumplimiento del enfoque curricular de la UNP. La investigación, básicamente desde el punto de vista metodológico, es una combinación de investigación evaluativa y descriptiva, apoyada en una investigación teórica con la literatura científica más reciente sobre el objeto de estudio. Se complementa con un Trabajo de Campo, por medio de la aplicación de una entrevista a docentes seleccionados, posteriormente se realiza una entrevista a expertos sobre el tema abordado y finalmente, a algunos estudiantes para triangular los datos. Se tiene como población a Docentes, con una muestra de 145 de los mismos; a técnicos con una muestra de 15 individuos y a 50 estudiantes de la Universidad Nacional de Pilar, seleccionados a partir del muestreo probabilístico. Los resultados permiten entrever que no siempre las estrategias didácticas son acordes al enfoque curricular de la UNP, lo que da entender que el paradigma pedagógico más bien se encuentra difuso en cuanto a su aplicación en el sentido estricto, predominando actividades rutinarias y falta de congruencia entre las actividades del proceso de enseñanza-aprendizaje y la búsqueda del logro de las capacidades marcadas en el enfoque curricular.
Analisis Keputusan Pemilihan Supplier di PT Lutvindo Wijaya Perkasa Menggunakan Metode Analytical Hierarchy Process (AHP)
Authors: Satriardi Satriardi , Jodika Siadari Ramot
Published: June 2023

Pada pembuatan aspal di PT Lutvindo Wijaya Perkasa tentunya memiliki beberapa bahan baku utama dan salah satunya adalah aspal curah yang diperoleh dari pembelian lokal. untuk kelancaran produksi Pemilihan supplier harus tepat dan perlu diperhatikan oleh perusahaan untuk segala kelancaran proses jadwal produksinya. Saat ini penilaian supplier yang dilakukan PT. Lutvindo Wijaya selama ini bersifat subyektif dan belum menerapkan kriteria-kriteria yang menjadi tolak ukur penilaian, sehingga penilaian belum mendapat hasil yang optimal. Penelitian ini memiliki tujuan untuk membantu perusahaan dalam penentuan supplier terbaik dengan menentukan kriteria-kriteria yang sesuai dengan proses sistem berjalan. Penerapan spk dalam penelitian ini dengan metode Analytical Hierarchy Process, karena hasil yang didapatkan berupa rangking urutan alternatif dari hasil perhitungan berdasarkan kriteria dan sub kriteria dalam pengambilan keputusan. Memperoleh data yang dibutuhkan melalui metode pengumpulan data seperti pengamatan langsung terhadap proses evaluasi, wawancara, serta menggunakan data kuesioner dengan populasi wilayah general pada PT. Lutvindo Wijaya Perkasa. Dari proses pengolahan data diperoleh beberapa kriteria pemilihan yaitu kualitas, persediaan, harga dan pengiriman dan  juga beberapa alternatif perusahaan yaitu PT. Multi Trading Utama, PT Toba Gena Utama, PT Hasrat Tata Jaya dan PT Rabana Aspalindo . Hasil dari perhitungan didapatkan bahwa Supplier PT. Multi Trading Pratama merupakan supplier aspal curah yang terbaik untuk PT. Lutvindo Wijaya Perkasa.
Financing low-carbon hydrogen: The role of public policies and strategies in the EU, UK and USA
Authors: Moura João , Soares Isabel
Published: June 2023

The goal of this study is twofold: first, to understand the rationales of public policies and possible outcomes on energy systems design behind supporting national hydrogen strategies in three major economic blocs (the EU, UK and USA) and possible outcomes on energy systems design; second, to identify differences in policy approaches to decarbonization through H2 promotion. Large-scale expansion of low-carbon H2 demands careful analysis and understanding of how public policies can be fundamental drivers of change. Our methodological approach was essentially economic, using the International Energy Agency (IEA) policy database as a main information source. First, we identified all regional policies and measures that include actions related to H2, either directly or indirectly. Then, we reclassified policy types, sectors and technologies to conduct a comparative analysis which allowed us to reduce the high degree of economic ambiguity in the database. Finally, we composed a detailed discussion of our findings. While the EU pushed for renewable H2, the UK immediately targeted low-carbon H2 solutions, equally considering both blue and green alternatives. The USA pursues a clean H2 economy based on both nuclear and CCS fossil technology. Although there is a general focus on fiscal and financing policy actions, distinct intensities were identified, and the EU presents a much stricter regulatory framework than the UK and USA. Another major difference between blocs concerns target sectors: While the EU shows a broad policy strategy, the UK is currently prioritizing the transport sector. The USA is focusing on H2 production and supply as well as the power and heat sectors. In all cases, policy patterns and financing options seem to be in line with national hydrogen strategies, but policies' balances reflect diverse institutional frameworks and economic development models.
Las monarquías peninsulares y las órdenes jerónima y cartuja: poder y espiritualidad en la Baja Edad Media. Presentación
Authors: Nieto Soria José Manuel
Published: June 2023

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Las órdenes jerónima y cartuja en el proyecto reformador de los reyes de Castilla
Authors: Cantera Montenegro Margarita
Published: June 2023

Los reyes castellanos promocionaron las órdenes de los jerónimos y de la Cartuja por el carácter ejemplar de su forma de vida, considerando que sería un modelo adecuado para fomentar la reforma de los religiosos durante los siglos finales de la Edad Media; su influencia se manifiesta tanto en acciones concretas respecto a monasterios y órdenes religiosas, como en proporcionar un ideal de reforma. Especialmente significativa es la figura de fray Hernando de Talavera respecto a los monasterios femeninos.
La repercusión de las fórmulas de fe sinodales en el episcopado hispano de la segunda mitad del siglo IV
Authors: Maymó Pere , Vilella Josep
Published: June 2023

A partir del concilio sirmiense de 357, en las filas del episcopado hispano también se atestigua tanto la vinculación como la oposición a las fórmulas de fe sinodales impuestas por Constancio II. Se analiza la repercusión inicial en la península ibérica de la «segunda fórmula» de Sirmio a partir de los posicionamientos de Osio, Potamio, Gregorio y Florencio —cuyas actuaciones rebasan el ámbito ibérico—, los cuales ponen de manifiesto la pluralidad existente al respecto. Los escritos conservados del contemporizador Potamio, debidamente datados, evidencian su segundo tránsito doctrinal —ahora del anomeísmo al niceísmo— tras la muerte de Constancio II, en consonancia con la restauración nicena. Por su parte, el decurso vital de Gregorio muestra su férrea defensa del Nicaenum y, asimismo, su relevante actividad epistolar.
El rey ángel en tiempos de valido e imperio
Authors: Galdeano Carretero Rodolfo
Published: June 2023

La obra de Rodrigo de Herrera, Del cielo viene el buen rey, y el apócrifo de Calderón de la Barca, El rey ángel, muestran la pervivencia y la vitalidad del antiquísimo apólogo conocido como «el emperador soberbio» que durante la primera Edad Moderna también fue la base de otros textos dramáticos en las principales lenguas europeas. A partir de la interpretación de ciertos pasajes bíblicos del Libro de Daniel que ejemplifican el pecado de soberbia contra Dios, las dos piezas teatrales que nos ocupan —a medio camino entre la comedia y el auto confesional— mutaron el sentido del cuento por el modelo de rey ángel. Así, en estas obras, después que el monarca actuase como un soberano soberbio, este nuevo tipo de rey ángel restituía el orden perdido poniendo de manifiesto las contradicciones entre una sociedad confesional y las prácticas burocráticas de la monarquía y el ejercicio del poder absoluto.
L’instrumentation de la démarche de professionnalisation par l’usage du carnet de bord en formation
Authors: Denny Jean-Luc , Pagnani Brigitte , Durrive Louis
Published: June 2023

L’article aborde l’instrumentation des démarches de professionnalisation par l’écriture, dans les dispositifs de formation à l’université, en interrogeant en quoi elle contribue à la professionnalité des acteurs à l’accompagnement des étudiants. Est mobilisé l’usage d’un carnet de bord par les étudiants dans un D.U., « Accompagner l’étudiant.e » de l’université de Strasbourg. Tenant de la démarche ergologique qui revendique une approche anthropologique du travail, le protocole de recueil des données mobilise conjointement l'entretien semi-directif et le dessin en tant qu’artefact, deux entretiens sont menés avec trois participantes. Les résultats documentent un carnet initialement empreint d’étrangeté qui semble faire obstacle aux apprentissages jusqu’à se transformer en un instrument « laboratoire » par un processus dialogique. La discussion défend une professionnalisation prise sous l’angle d’un débat de normes.
L’hybridation conceptuelle en question. Le cas du concept de « situation » chez John Dewey et Guy Brousseau
Authors: Gégout Pierre
Published: June 2023

Cet article pose la question des conséquences conceptuelles de l’hybridation des disciplines en sciences de l’éducation et de la formation. Il soutient qu’une telle approche comporte un risque de confusion conceptuelle lorsque les divers concepts venus d’horizons très différents ne sont pas suffisamment bien clarifiés par celles et ceux qui souhaitent les employer. Pour illustrer cela, cet article prend l’exemple du concept de « situation » tel qu’il est usité en Théorie de l’Action Conjointe en Didactique. Il montre que la signification de ce concept est problématique parce qu’il se rapporte en fait à deux systèmes conceptuels très différents : la pensée du didacticien français Guy Brousseau et celle du philosophe américain John Dewey. Après avoir rappelé ce que le concept de « situation » signifiait respectivement dans ces deux systèmes, nous montrons qu’il s’agit de concepts clairement distincts qui n’ont de commun que leur nom. Ce faisant, nous plaidons pour une plus grande prudence, en sciences de l’éducation et de la formation, dans l’entreprise d’hybridation qui les caractérise pourtant.
Définir la fiction climatique, ou cli-fi
Authors: Milner Andrew
Published: June 2023

Cet article propose dans un premier temps d’explorer la relation entre la cli-fi et la science-fiction avant d’explorer l’histoire de la fiction climatique francophone, de Jules Verne à Jean-Marc Ligny, à travers des concepts empruntés aux études sur l’utopie, notamment en ce qui concerne la distinction entre les utopies et les dystopies classiques et critiques. Il veut démontrer l’importance des fictions qui sont scientifiquement plausibles mais qui conservent néanmoins un contenu utopique crédible et conclut en proposant le roman The Ministry for the Future de Kim Stanley Robinson comme modèle pour ce genre de fiction.
« Vivre avec le trouble » du changement climatique : écoféminismes posthumains dans Le Roman de Jeanne de Lidia Yuknavitch (2017) et The Tiger Flu de Larissa Lai (2018)
Authors: Haristoy Lisa
Published: June 2023

Cet article propose d’identifier ce que la fiction écoféministe contemporaine peut apporter à la cli-fi. Les romans The Book of Joan de l’étasunienne Lidia Yuknavitch (2017) et The Tiger Flu (2018) de la canadienne Larissa Lai invitent à penser l’influence humaine délétère sur le climat dans des univers post-apocalyptiques où les ressources naturelles, notamment les hydrocarbures, sont épuisées. D’abord, l’examen des cadres spatio-temporels des romans permet de montrer l’imbrication de l’exploitation de la nature féminisée et celle des « autres sexisés, racialisés et naturalisés » (Braidotti, 2013, p. 15). Nous observons ensuite la dénonciation d’un bio-pouvoir exercé non seulement sur les altérités humaines marginalisées mais aussi sur le vivant en général. Les grands dualismes hiérarchiques de la modernité, notamment la dichotomie nature/culture, sont toujours structurants dans ces sociétés dystopiques. Pourtant, ces romans ont aussi une force de proposition qui est rendue plus intelligible grâce aux outils du féminisme cyborg de D. Haraway. Elles prennent corps dans des figures de posthumaines cyborg qui accueillent leur hybridation avec les technologies et la vie non-humaine, ce qui invite à un décentrement de l’être humain individuel. Par ailleurs, ces romans s’attaquent à la relation conflictuelle entre (éco)féminisme et technologies en présentant les (nano- et bio-)technologies comme des outils patriarcaux appropriables par les sujets féministes. Nous en concluons que le potentiel critique de l’écoféminisme s’accomplit mieux lorsqu’il est combiné avec d’autres approches critiques comme le féminisme postmoderne, cyborg et posthumain. Ces champs théoriques ont de grandes affinités avec la cli-fi. Enfin, nous affirmons que là où The Book of Joan est tributaire du tournant linguistique postmoderne, The Tiger Flu s’aligne davantage avec une vision néo-matérialiste du féminisme posthumain.
Quadratic almost ideal demand system analysis of demand for selected vegetables and fruits in nigeria
Authors: Obisesan A. A.
Published: June 2023

This study analyzed the demand for selected vegetables and fruits in Nigeria. It determined price effects on demand for fruits and vegetables, examined the demographic variables influencing demand and revealed the expenditure elasticity across income quartiles and sectors. Data from the three waves of Living Standard Measurement Survey-Integrated Survey on Agriculture namely 2010/11, 2012/13 and 2015/16, were employed in the analysis. The demand for bananas, citrus, pineapples, fresh okra, onions pepper and tomatoes was examined using the Quadratic Almost Ideal Demand System. Households in Nigeria consumed more vegetables than fruits. The results revealed that the staple vegetables in Nigerian diets are tomatoes, onions and pepper. It was observed that movement in relative prices elicited high quantity response. All the fruits and vegetables included in the model were normal goods. Vegetables and fruits responded similarly to expenditure increases in urban and rural Nigeria. The own-price elasticities, both uncompensated and compensated agree with the demand theory. More consideration should be given to the intensifying production of fruits and vegetables in technology development and investment to make them available and affordable.
Weedy rice: An insight into genetic diversity and population structure for effective weed management
Authors: Tennakoon A. , Sandamal S. , Ge S. , Marambe B. , Ratnasekera D.
Published: June 2023

Weedy rice (Oryza sativa f. spontanea) is a conspecific weed that has invaded cultivated rice fields, effectively adapted to modern management practices, leading to substantial yield losses and reduced harvest quality. The understanding of weedy rice genetic diversity and population structure is critical in developing effective control measures. Twenty weedy rice populations were collected around the island and evaluated using 33 SSR markers. Our findings indicated that the genetic diversity (He) in a population of weedy rice was reasonably high (0.305 - 0.560). A high level of within-population (79%) and a low level of among-population (21%) genetic variation were found by analysis of molecular variance (AMOVA). There is no significant correlation across genetic and geographical distances (P>0.05). The unweighted pair group method with arithmetic mean (UPGMA) demonstrated that 20 populations were structured into two well-separated groups. Remarkably, many admixed individuals were evident according to the STRUCTURE. Weedy rice management strategies should focus on micromorphological monitoring to detect, group, and eliminate weedy rice in paddy fields, restricting the exchange of saved paddy seeds among geographical regions, increasing the production and distribution of certified seeds, the varietal recommendation for rice-growing regions to minimize mixing of varieties with different age classes, raising awareness are the recommendations to reduce the emergence of future weeds.
Multi-fidelity Aeroacoustic Prediction of an eVTOL Rotor
Authors:   ONERA, Reboul Gabriel ,   Airbus Helicopters, Guntzer Frederic , Lewis Danny , Balmaseda Mikel , Bailly Joelle , Falissard Fabrice , Lienard and
Published: June 2023

The rising interest in urban air mobility has brought new challenges in terms of noise pollution. Developing dedicated methods to accurately predict the noise generated by such aircraft configurations is thus a cornerstone to be able to meet the noise emission requirements in an urban environment. This work presents three numerical approaches, with different levels of fidelity, which aim at predicting the noise produced by such configuration: a lifting-line code with free wake, an innovative intermediate approach based on a Reynolds-averaged Navier-Stokes/Blade Element Theory (RANS/BET) coupling, and an Unsteady Reynolds-Averaged Navier-Stokes (URANS) approach. These methods are assessed on a rotor representative of those installed on an electric Vertical Take-Off and Landing (eVTOL) aircraft. A thorough comparison of the aerodynamic features and the noise predicted by each approach is presented for two challenging operating conditions, namely hover and edgewise flight. Their capacity to account for the effect of a supporting arm is also assessed. Only the URANS method is able to accurately predict the blade-vortex interactions that characterize both operating conditions as well as installation effects due to the supporting arm. The RANS/BET method has limitation in the capture of blade-vortex interaction while the lifting-line approach fails to predict accurately the installation effect. Nevertheless, those two proposed alternative approaches allow to significantly reduce the CPU and manpower costs inherent to the use of a URANS simulation with discrepancies in terms of mean and maximum levels lower than 3 dB in all the considered configurations.
Evaluation of Acoustic Propagation in Layered Media usingWave Confinement
Authors:   Wave CPC Inc., Chitta Subhashini ,   Analytical Mechanics Associates Inc., Houston Mary ,   US Army CCDC AvMC, Stephenson James , Steihoff and
Published: June 2023

A comprehensive method for propagation of sound in layered media is discussed that involves dividing the domain into two regions, source field and far field. The source field is provided using experimentally collected data from full-scale rotorcraft acoustic flight tests, which consists of short waveforms that cannot be directly simulated on the grid without numerical errors. Instead, grid based computational waves are used to carry the details of these waveforms, including amplitude, arrival time and location of origin on source sphere. This is done by solving the scalar wave equation using the Wave Confinement (WC) method, which involves adding an extra term to produce converged solutions. WC is used to study wave propagation in two different atmospheric conditions, and the results are compared to the flight test data. Overall, WC can accurately capture the propagation effects, and there is a good agreement with the flight test data.
Effect of Rotor Blade Elasticity on UAM Quadrotor Acoustics
Authors:   NASA Ames Research Center, Kottapalli Sesi ,   NASA Langley Research Center, Douglas D. , Silva Christopher
Published: June 2023

The 6-passenger quadrotor concept vehicle designed under the NASA Revolutionary Vertical Lift Technology (RVLT) Project is considered for acoustic analysis. The tip speed is 550 ft/sec, with three blades per rotor (550/3). Originally, the blades were rigid, uniform spanwise, and with flap and pitch degrees of freedom. The blade model has since been updated: a lag hinge was added, and nonuniformities and elastic properties were introduced. Four blade models are considered: 1) original model, rigid uniform flap-pitch; 2) rigid uniform flap-lag-pitch; 3) rigid nonuniform flap-lag-pitch; and 4) elastic nonuniform flap-lag-torsion. Predictions are made for three flight conditions (approach, flyover, and takeoff) using the four blade models. The RVLT Toolchain is exercised using CAMRAD II and pyaaron/AARON/ANOPP2. Quadrotor trim and performance, 0.75R vertical blade loading for all four rotors, and noise sources are analyzed. Also, the contributions of the front and rear rotor pairs to noise are studied. In approach and flyover, a 2 dBA loading noise difference (delta) is predicted between blade models 1 and 4 (delta for takeoff is smaller, 1 dBA). Most of this noise delta is due to the lag hinge and nonuniformities, which is consistent with the results of a 2022 study that had considered only the approach condition; the current results extend this conclusion to flyover and takeoff also. The insensitivity of quadrotor noise to blade elasticity is currently attributed to the high blade torsional stiffness (frequency 6.41 per rev) and the small blade radius (9 ft) of the 550/3 design. Suggestions for potential follow-on work are given.
High Fidelity Aerodynamic and Aeroacoustic Simulations of Multicopter Rotors with Anhedral During Hover and Forward Flight
Authors:   University of Stuttgart, Muth Moritz , Keßler Manuel , Krämer Ewald
Published: June 2023

High fidelity CFD simulations of rotors with different anhedral tip angles are performed in isolated and tandem configurations at two different flight scenarios. The studied cases are hover, as well as a 25 m/s forward flight. Additionally, the convection of emitted noise of the rotors is simulated by using a Ffowcs Williams & Hawkings based CAA code. For comparison of the acoustic characteristics each rotor is simulated with the same RPM and pitch angle. Futhermore a flight mechanic trim is performed using the flight mechanic tool VFAST to compare selected anhedral rotors at the same thrust level. A NACA0012 rotor was used as a baseline rotor and all tip geometry changes are applied to this rotor blade. In hover, the isolated anhedral rotors show a drop in the Figure of Merit (FM) compared to the baseline rotor. Meanwhile the noise emission in the rotor plane increases, while the noise emission below the rotor plane decreased with rising anhedral angles. In contrast, the tandem configuration in hover showed increase FM due to changed inflow conditions. Further no clear acoustic benefits were found, with higher noise emission in the rotor plane. For the 25 m/s forward flight the efficiency of the anhedral rotors is increased, while the noise emission is also increased. This behavior was found for both the isolated and tandem rotors.
Unsteady Loading Noise Measurements and Predictions for eVTOL Rotors
Authors:   University of Florida, Goldschmidt James , Ukeiley Lawrence
Published: June 2023

The induced velocity field of three different sub-scale eVTOL rotors were measured using a newly implemented stereoscopic particle image velocimetry (sPIV) system in the UF Anechoic Wind Tunnel Facility. The measurements were performed in the test section of the open jet wind tunnel for hover and edgewise flight conditions with advance ratios ranging from 0.065 to 0.268. The ensemble averaged sPIV measurements showed that an increase in advance ratio leads to a skewing of the maximum induced velocity towards the advancing side of the rotor disk and an increased area of upwash velocity at the front of the rotor disk. The results were further compared to the induced velocity field modeled with Peters-He Generalized Dynamic wake model. The modeled induced velocity was shown to be in poor agreement to the measured velocity field pointing to the limitations of the cylindrical wake assumption for a fixed pitch rotor in edgewise flight. The measured velocity field was utilized in both blade element theory and Sears unsteady airfoil theory to estimate the unsteady rotor blade forces. These forces were then utilized in an analytical noise model to predict unsteady loading noise and the results showed good agreement to measured sound pressure levels.
A Parametric Investigation of Rotor-Rotor Interaction Noise Generation
Authors:   Pennsylvania State University, F. Robert , Greenwood Eric
Published: June 2023

An extensive parametric study of a two rotor system configurations is conducted to investigate the effect of rotor placement on noise generation, with the aim of providing preliminary design information to multirotor aircraft designers. A computationally efficient wake method called OpenCOPTER is used to conduct the aerodynamic simulations and PSU-WOPWOP is used to predict the rotor sound power level over an acoustic hemisphere. An extensive parameter sweep is explored consisting of several different rotor placements and operating conditions. Aerodynamic interactions between the rotors are found to result in significant rotor-rotor interaction noise when the downstream rotor is placed in two different regions behind the upstream rotor. The rotor-rotor interaction noise also varies as the rotors are offset laterally. Even for conditions where rotor-rotor interaction noise does not occur, aerodynamic interactions between the rotors can affect how rotors interact with their own wake. Positioning the downstream rotor above, but relatively close to, the upstream rotor is shown to result in a robust reduction in noise across the entire operating envelope.
Flyover Noise Computations of the Joby Aviation Aircraft
Authors:   Joby Aviation, Thai Austin , Bain Jeremy , Mikic Gregor , Stoll Alex
Published: June 2023

Joby Aviation is developing a six propeller, all electric vertical takeoff and landing aircraft. The aircraft is designed to operate near high population areas such as residences and workplaces, so it is imperative that the acoustic emissions of the aircraft are minimized for community acceptance. The aircraft design process incorporated the usage of high-fidelity computational aeroacoustics methods. Acoustic flight tests of the Joby aircraft were conducted by the National Aeronautics and Space Administration as part of the Advanced Air Mobility National Campaign and confirmed the revolutionary low noise footprint. The measured noise levels were compared with high-fidelity computational aeroacoustics predictions for two steady, level flight conditions. The results provide insight into the noise sources of the aircraft in these flight conditions. Airframe noise was predicted to be dominant for both flight conditions in the A-weighted spectrum due to the low propeller loading. Modeling efforts were made to account for acoustic shielding and airframe broadband noise and resulted in an improvement in the predictions, although the true noise sources are to be confirmed with further investigation.
Safety and Product Robustness in the Air Vehicle Design Process
Authors:   Lockheed Martin, Ehigiato Ide , Hainsworth Barton , Barner Pete
Published: June 2023

This paper discusses the application of the Design Failure Modes and Effects (DFMEA) process as applied within the Airframe and Mechanical Systems (AF&MS) design organization at Sikorsky Aircraft, a Lockheed Martin Company. The DFMEA process, an adaptation of the SAE J1739 Surface Vehicle FMEA standard, is tailored to meet the helicopter airframe design application for DFMEA and is further modified for a bottoms-up abbreviated Design Failure Modes and Effects method, the A-DFMEA, which is a design engineer conducted assessment versus the top down DFMEA team approach. While this method may have certain shortfalls in that only a single individual is conducting the preliminary assessment, it does have the benefit of increasing the design engineer's awareness and focus on potential areas of concern such as various failure modes by component type which can be addressed early in the design or monitored as the design matures through the product design/development cycle. The paper will present a process flow, risk assessment scoring methodology as well as DFMEA and A-DFMEA scoring worksheet, remedial actions, and mitigations from those results. Lastly, a discussion of how those results enter into the digital thread and data archiving are presented.