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We present high-resolution, long-slit optical spectra and images of the planetary nebula NGC 1514. The position velocity maps of the [O III] emission line reveal complex kinematics with multiple structures. A morpho-kinematical analysis suggests an inner shell, originally spherical and now distorted by several bubbles, and an attached outer shell. The two well-defined, mid-infrared rings of NGC 1514 are not detected in our high-resolution, long-slit spectra, which prevented us from doing a kinematical analysis of them. Based exclusively on their morphology, we propose a barrel-like structure to explain the rings. Several ejection processes have been possibly involved in the formation of the nebula, although a time sequence is difficult to establish with the current data. We also analyse intermediate-resolution, long-slit spectra with the goal of studying the physical parameters and chemical abundances of NGC 1514. The nebular spectra reveal a moderate-excitation nebula with weak emission lines of [Ar III], [Ne III], He I, and He II. Neither [N II] nor other low-excitation emission lines are detected. We found an electron temperature around 14 000 K in the gas and an electron density in the range of 2000–4000 cm−3. © 2021 The Author(s). ; AA acknowledges support from Government of Comunidad Autónoma de Madrid (Spain) through postdoctoral grant 'Atracción de Talento Investigador' 2018-T2/TIC-11697 and support from FONDECYT through postdoctoral grant 3160364. RV acknowledges support from UNAM-PAPIIT IN106720, and LFM acknowledges partial support by MCIU grant AYA2017-84390-C2-1-R, co-funded with FEDER funds, and financial support from the State Agency for Research of the Spanish MCIU through the 'Center of Excellence Severo Ochoa' award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709). The work of MER was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. This research has made use of the SIMBAD data base, operated at the CDS, Strasbourg (France), Aladin, NASA's Astrophysics Data System Bibliographic Services. This research has made use of the Spanish Virtual Observatory (http://svo.cab.inta-csic.es) supported from the Spanish MINECO/FEDER through grant AyA2017-84089. This research has been partly funded by the Spanish State Research Agency (AEI) Project MDM-2017-0737 at Centro de Astrobiología (CSIC-INTA), Unidad de Excelencia María de Maeztu. Authors also acknowledge the Calar Alto Observatory for the service observations. Finally, authors also acknowledge support from OAN-SPM staff. ; Peer reviewed

The importance of the development of the necessary technology to achieve the production of vaccines from a "synthetic biology" perspective is analyzed, as well as the essential articulation and financing through international cooperation to combat COVID-19, all the information on this topic is from the bibliographical research on topics focused on the development, cooperation, and international regulations involved in the synthesis of COVID-19 vaccines. A comprehensive vision on the recent development strategies on health and bioeconomy issues is proposed to face future eventualities and thus promote better health-oriented developments with the possibilities of immediate action.

Context. It has become clear in recent years that binarity plays a crucial role in many aspects of planetary nebulae (PNe), particularly with regard to the striking morphologies they exhibit. To date, there are nearly 60 known binary central stars of PNe (bCSPNe). However, both theory and observation indicate that this figure represents only the tip of the iceberg, with the Galactic PN population hosting orders of magnitude more stars. Aims. We are involved in a search for new bCSPNe with the aim of enhancing the statistical validation of the key role of binarity in the formation and shaping of PNe. New discoveries of bCSPNe and their characterization carry important implications not only for understanding PN evolution, but also for studying binary evolution and the common-envelope phase, which is still poorly understood. Methods. We used data from the TESS satellite to search for variability in the eight CSPNe that belong to the two-minute cadence of preselected targets in Cycle 1, with their available pipeline-extracted light curves. We identified strong periodicities and analysed them in the context of the binary scenario. Results. All the CSPNe but one (Abell 15) show clear signs of periodic variability in TESS. The cause of this variability can be attributed to different effects, some of them requiring the presence of a companion star. We find simple sinusoidal modulations in several of the systems, compatible with irradiation effects. In addition, two of the central stars (PG 1034+001 and NGC 5189) also show photometric variations due to ellipsoidal variations and other signs of variability that are probably caused by star spots or relativistic Doppler-beaming. The case of the well-studied Helix Nebula is of particular interest; here we constructed a series of binary models to explain the modulations we see in the light curve. We find that the variability constrains the possible companion to be very low-mass main-sequence star or sub-stellar object. We also identify, in substantial detail, the individual pulsation frequencies of NGC 246. © ESO 2020. ; Acknowledgements. We thank our anonymous referee for their useful comments that have improved the interpretation and discussion of the data. AA acknowledges support from Government of Comunidad Autónoma de Madrid (Spain) through postdoctoral Grant "Atracción de Talento Investigador" 2018-T2/TIC-11697. JLB and SBF acknowledge support from the Spanish State Research Agency (AEI) through projects No. ESP2017-87676-C5-1-R and No. MDM-2017-0737 Unidad de Excelencia "María de Maeztu" – Centro de Astrobiología (INTA-CSIC). DJ acknowledges support from the State Research Agency (AEI) of the Spanish Ministry of Science, Innovation and Universities (MCIU) and the European Regional Development Fund (FEDER) under grant AYA2017-83383-P. DJ also acknowledges support under grant P/308614 financed by funds transferred from the Spanish Ministry of Science, Innovation and Universities, charged to the General State Budgets and with funds transferred from the General Budgets of the Autonomous Community of the Canary Islands by the Ministry of Economy, Industry, Trade and Knowledge. LFM acknowledges partial support by grant AYA2017-84390-C2-1-R, co-funded with FEDER funds, and financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award for the Insti-tuto de Astrofísica de Andalucía (SEV-2017-0709). Authors are very grateful to Cristina Rodríguez López for guiding us with the analysis of RWT 152 and NGC 246. This research has made use of the SIMBAD database, operated at the CDS, Strasbourg (France), Aladin, NASA's Astrophysics Data System Bibliographic Services, and the Spanish Virtual Observatory (http://svo.cab. inta-csic.es) supported from the Spanish MICINN/FEDER through grant AyA2017-84089. This publication makes use of data collected by TESS mission. Funding for the TESS mission is provided by the NASA Explorer Program. We acknowledge the use of pipelines at the TESS Science Office and at the TESS Science Processing Operations Center. This paper makes use of data products from the Mikulski Archive for Space Telescope. ; Peer reviewed

Este artículo examina críticamente el principio de salida simple que plantea Kukathas como el mejor sistema para conciliar las exigencias de pertenencia a una cultura indígena y el derecho a disentir de sus miembros mujeres. Para ello, en primer lugar, se revisa la tensión entre el feminismo de la igualdad y la situación de las mujeres indígenas con sus culturas internas. En segundo lugar, se analiza la tesis de Kukathas para concluir que por sí sola no es suficiente. Y, finalmente, se presenta una solución alternativa que superpone el "derecho de salida", un modelo de jurisdicciones multiculturales y una adecuada concepción de la democracia deliberativa.

This article critically examines the plain exit principle of Kukathas that argues as the best system to conciliate the demands of belonging to an indigenous culture and the right to dissent from their women members. We first review the tension between feminism of equality and the situation of indigenous women with their internal cultures. Second, we explore the thesis of Kukathas for conclude that it alone is not enough. Finally, it analyses an alternative solution that overlapping the right of exit, a model of multicultural jurisdictions and adequate conception of deliberative democracy. ; Este artículo examina críticamente el principio de salida simple que plantea Kukathas como el mejor sistema para conciliar las exigencias de pertenencia a una cultura indígena y el derecho a disentir de sus miembros mujeres. Para ello, en primer lugar, se revisa la tensión entre el feminismo de la igualdad y la situación de las mujeres indígenas con sus culturas internas. En segundo lugar, se analiza la tesis de Kukathas para concluir que por sí sola no es suficiente. Y, finalmente, se presenta una solución alternativa que superpone el "derecho de salida", un modelo de jurisdicciones multiculturales y una adecuada concepción de la democracia deliberativa.

La presente investigación se realizó en el municipio de Tola, departamento de Rivas, con el objetivo de indagar los procesos de enseñanza aprendizaje en la asignatura Historia de Nicaragua, Historia de América e Historia Universal, a través de historias de vida a tres docentes de Educación Secundaria. Esta investigación surge a partir de la necesidad de conocer y valorar la labor de los docentes que impartieron la asignatura Historia. El estudio se basa en el paradigma interpretativo, en este se recopila las metodologías didácticas utilizadas por las docentes de Historia. Es una indagación retrospectiva, se fundamenta en las experiencias docentes, narradas por las maestras en la década que impartieron docencia en la década de los años 90. Para llevar a cabo este estudio se utilizó la Historia Oral como método de investigación y el enfoque de investigación cualitativo, se utilizó la historia de vida como técnica de investigación. Como principales hallazgos se pueden mencionar que en la década de los 90 la enseñanza de las asignaturas de Historia era tradicional, basada en memorización y utilización de libros textos, elaboración de resúmenes e investigaciones en la biblioteca del Centro Escolar. Además, era una educación no gratuita, basada en los preceptos de la "autonomía escolar" y con altos índices de empirismo docente.

Este estudo tem por objetivo analisar a percepção de universitários da Região Amazônica acerca da gestão de resíduos sólidos assim como suas ações, fazendo uma leitura quanto à educação ambiental sustentável. A educação ambiental sustentável busca incluir questões-chave sobre o desenvolvimento sustentável, bem como fazer que cada pessoa reflita e possa assumir o papel de membro principal do processo de ensino aprendizagem. Através de pesquisa descritiva e quantitativa, subdividida entre revisão de literatura e coleta de dados primários, realizada durante workshop que abordou a responsabilidade quanto à gestão dos resíduos sólidos. Os resultados revelaram que 72% dos universitários considera acima da média seu nível de conhecimento quanto a educação ambiental. Concluiu-se ao final do estudo que suas ações estão relacionadas à educação ambiental sustentável, contudo, aquelas consideradas não sustentáveis se justificam pela falta de ambiente que propicie torná-las mais sustentáveis.

Violencia de género : la necesidad de aclarar conceptos para visibilizar adecuadamente el problema / Jorge Astudillo Muñoz -- La violencia de género como una forma de opresión estructural / Luis Villavicencio Miranda -- La pregunta silenciada del niño ante la vulneración de sus derechos / Miriam Pardo Fariña -- Potenciación de aprendizaje: de la pedagogía a las ciencias sociales : instalación de un concepto / Carmen Gloria Garrido Fonseca -- Breves reflexiones sobre las medidas de protección a favor de niños, niñas y adolescentes en los Tribunales de Famila / Ana Verónica Vásquez -- Responsabilidad contractual en coso de bullying / Mario Opazo González -- Envejecimiento, protección social y derechos / María Eugenia Arenas Coronil -- El sistema de AFP chileno : un genocidio socioeconómico / Carlos Rivadavia -- Inclusividad y diseño : una visión para la V región / Alan Fox Igualt -- Educación superior inclusiva : una tarea pendiente / Alejandra Ríos Urzúa -- Terapia ocupacional e inclusión : la discapacidad como construcción colectiva / Alejandra Garcés Maldonado