Propuesta para el manejo de lodos residuales de la planta de tratamiento de la empresa Fabrinorte, cantón Otavalo

Proponer estrategias para el manejo de los lodos residuales en la planta de tratamiento de aguas residuales de la empresa Fabrinorte del cantón Otavalo.Los lodos provenientes de aguas residuales textiles son una problemática ambiental, métodos tradicionales de disposición final representan costos elevados y cada vez más complejos, la búsqueda de alternativas económicamente viables para la disposición final de estos residuos industriales ha evolucionado, aprovechándolos en la recuperación de suelos. El objetivo de esta investigación fue proponer estrategias para el manejo de lodos residuales provenientes de la planta de tratamiento de la empresa Fabrinorte del cantón Otavalo, brindando un valor agregado como sustrato en la producción de pimiento verde (Capsicum annuum). Se realizó un sustrato con base de cascarilla de arroz, tierra negra, tierra del sitio, cascajo blanco (limo) y lodo residuales textil dosificado a 0, 15, 30 y 45 kg, en un diseño experimental por bloques al azar, con cuatro tratamientos y tres repeticiones. Las variables evaluadas fueron: altura de la planta, diámetro del tallo, número de hojas, número de flores y número de frutos. Los resultados obtenidos demostraron que los lodos residuales textiles influyen en las características físicas y productivas del pimiento verde (Capsicum annuum) aceptando la hipótesis alternativa planteada. El sustrato con 45kg de lodo residual textil presentó efectos favorables en las variables altura de la planta (25.19 cm), diámetro del tallo (0.55 cm), número de hojas (34.36), número de frutos (3.64) a excepción del número de flores (5.58) que en la clasificación de la prueba de Tukey presentó semejanza. La presencia de Cu, Cr, Ni y Pb en el fruto no rebasaron los límites permitidos por el Codex alimentarius emitido por la FAO.Ingenierí

Sistema de manejador de contenido web para el programa de investigación en TIC UNI, Nicaragua

El presente proyecto, “sistema de manejador de contenido web para el programa de investigación en TIC (UNI-Nicaragua)” responde a un requerimiento del departamento de investigación en TIC de la universidad nacional de Ingeniería (UNI) como parte de su estrategia de evidenciar los resultados de sus propias investigaciones y proyectos en colaboración, incluyendo programas académicos a nivel posgrado

A new genetic lineage of Asparagopsis taxiformis (Rhodophyta) in the Mediterranean Sea: As the DNA barcoding indicates a recent Lessepsian introduction

Asparagopsis taxiformis (Delile) Trevisan is a red marine macroalga (Bonnemaisoniales, Rhodophyta) with high invasive potential and broad worldwide distribution. In the Mediterranean Sea, A. taxiformis was reported before the opening of the Suez Canal and is comprised of two different cryptic lineages, named L2 and L3. As for the Israeli Mediterranean Sea (IMS), A. taxiformis benthic populations have seemingly expanded with several large seasonal blooms recorded in recent years. However, neither ecology nor molecular substantial studies have been conducted for this particular geographical area. Increasing sampling intensity and geographical coverage may reveal new lineages or indicate human-mediated spread routes not only for A. taxiformis but for macroalgae in general. This approach is particularly important in areas such as the eastern Mediterranean Sea, which experiences intense biological invasion on a global scale. In this study, randomly samples specimens (n = 30) of A. taxiformis and preserved herbarium samples (n = 4) collected from the IMS in the past, were all barcoded and taxonomically identified using three molecular genetic markers (LSU, cox2-3 spacer, and rbcL). We found a cryptic lineage 4 (L4) of A. taxiformis first reported here for the Mediterranean Sea, and previously described for the western Indo-Pacific and Hawaii. Herbarium samples confirmed the presence of L4 as early as 2013. Comparative assessment of cox2-3 spacer marker indicates 100% similarity to sequenced L4 samples from Egypt in the Red Sea. The IMS cox2-3 spacer sequences differed from previously sequenced samples from the Mediterranean Sea by 2.3% and 3.9% bp, compared to L3 and L2 Mediterranean populations, respectively. Morphological inspections indicate monoecious L4 gametophytes which are larger than the L4 population reported previously from Hawaii. Altogether, our results strongly indicate a Lessepsian migration route for A. taxiformis L4 with yet unknown consequences for the local marine ecosystems

The HABIT (HabitAbility: Brine Irradiation and Temperature) environmental instrument for the ExoMars 2022 Surface Platform

Acknowledgements HABIT is an instrument of the Luleå University of Technology (LTU), led by J. Martín-Torres (PI) and M-P. Zorzano (co-PI). The international list of Co-Is and collaborators of the science team of HABIT is given in (https://atmospheres.research.ltu.se/habit/pages/team.php). HABIT engineering team: A. Soria-Salinas, M. I. Nazarious, S. Konatham, T. Mathanlal and A. Vakkada Ramachandran. HABIT IT team: J. –A. Ramirez-Luque and R. Mantas-Nakhai. ASS acknowledges the support of the LTU Graduate School of Space. M-P. Z's contribution has been partially supported by the Spanish State Research Agency (AEI) Project No. MDM-2017-0737 Unidad de Excelencia “María de Maeztu” - Centro de Astrobiología (INTA-CSIC). The HABIT FM and EQM were fabricated by Omnisys Instruments AB, based in Gothenburg, Sweden, under advice of LTU as part of the HABIT project development and funded by the Swedish National Space Agency (SNSA). We thank the ExoMars project team, European Space Agency (ESA), Roscosmos, Space Research Institute (IKI) and Omnisys Instruments AB for their hard work on the ExoMars mission. We thank Petra Rettberg and Carina Fink from DLR for their planetary protection analysis of HABIT samples. We acknowledge the Luleå University of Technology, the Wallenberg Foundation and the Kempe Foundation for support of the Mars research activities. We thank the support of the Swedish Institute for Space Physics (IRF) for the TVAC tests. The Oxia Planum environmental conditions research was partially funded by the European Research Foundation. The SpaceQ chamber has been developed together with Kurt J. Lesker Company and was funded by the Kempe Foundation. CRediT authorship contribution statement Javier Martín-Torres: Conceptualization, Methodology, Supervision, Investigation, Writing - original draft, Funding acquisition, Resources, Project administration. María-Paz Zorzano: Conceptualization, Methodology, Supervision, Investigation, Writing - original draft, Funding acquisition, Resources, Project administration. Álvaro Soria-Salinas: Formal analysis, Investigation, Visualization, Writing - review & editing. Miracle Israel Nazarious: Formal analysis, Investigation, Visualization, Writing - review & editing. Samuel Konatham: Formal analysis, Investigation, Visualization, Writing - review & editing. Thasshwin Mathanlal: Formal analysis, Investigation, Visualization, Writing - review & editing. Abhilash Vakkada Ramachandran: Formal analysis, Investigation, Visualization, Writing - review & editing. Juan-Antonio Ramírez-Luque: Software, Writing - review & editing. Roberto Mantas-Nakhai: Software, Writing - review & editing.Peer reviewedPostprin

Work-family conflict role in the relationship between organizational climate and intentions to leave

[ES] En la actualidad, los estudios han documentado sustancialmente las relaciones entre los componentes del clima organizacional y las intenciones de abandonar una organización. Sin embargo, son escasas las evidencias de estas relaciones, cuando existen conflictos entre el trabajo y la familia. En este trabajo se tiene el objetivo de exhibir las relaciones del clima organizacional con la intención de salida cuando el conflicto trabajo-familia (WFC) se involucra en la ecuación de predicción en su rol mediador. El método incluyó la entrevista de 292 empleados, de hoteles de cinco estrellas y gran turismo, para dimensionar las actitudes relacionadas entre las tres variables utilizando el análisis de regresión lineal para probar las hipótesis mostrando el modelo con la mayor varianza en la intención de salida. Los resultados describen los modelos exigidos por la prueba de mediación con las limitaciones que suponen el observar un solo tipo de organización inhibiendo la generalización de los resultados. A pesar de esto, la originalidad del estudio radica en probar la existencia de este rol mediador. La relevancia de los hallazgos reside en que se demuestra que la intención de abandonar la organización por una percepción desfavorable del ambiente de trabajo se ve influenciada parcial, pero significativamente por el conflicto trabajo-familia. La implementación de acciones que promuevan, en sus políticas de gestión, la posibilidad de apoyar a los empleados con el equilibrio entre sus relaciones laborales y sus relaciones familiares, pueden facilitar un clima laboral que disminuya la rotación de personal.[EN] Currently, studies have substantially documented the relationships between components of the organizational climate and intentions to leave an organization. However, there is scarce evidence of these relationships, when there are conflicts between work and family. This article aims to show the relationships of the organizational climate with turnover intention when the work-family conflict (WFC) is involved in the prediction equation in its mediating role. The method included the interview of 292 employees of five-star hotels for measuring the related attitudes between these three variables using linear regression analysis to test the hypotheses showing the model with the highest variance in the turnover intention. The results describe the models required by the mediation test with the limitations of observing a single type of organization, inhibiting the generalization of the results. In spite of this, the originality of the study lies in proving the existence of this mediating role. The relevance of the findings is that it is shown that intention to leave because of unfavorable labor climate at organization is partially but significantly influenced by the work-family conflict. The implementation of actions that promote, in their management policies, the possibility of supporting employees with the balance between their work and family relationships, can facilitate a work environment that reduces staff turnover.Los autores agradecen al Tecnológico Nacional de México por haber financiado el proyecto en el programa de apoyo a la investigación científica y tecnológica. A Pilar Fernández Ferrín y Belén Bande Vilela por su perspicaz y expedita guía en los procesos editoriales y a los árbitros anónimos por todos los comentarios constructivos a este artículo

Passive design strategies and performance of Net Energy Plus Houses

The first step in order to comply with the European Union goals of Near to Zero Energy Buildings is to reduce the energy consumption in buildings. Most of the building consumption is related to the use of active systems to maintain the interior comfort. Passive design strategies contribute to improve the interior comfort conditions, increasing the energy efficiency in buildings and reducing their energy consumption. In this work, an analysis of the passive strategies used in Net Energy Plus Houses has been made. The participating houses of the Solar Decathlon Europe 2012 competition were used as case studies. The passive design strategies of these houses were compared with the annual simulations, and the competition monitored data, especially during the Passive Monitored Period. The analysis included the thermal properties of the building envelope, geometric parameters, ratios and others passive solutions such as Thermal Energy Storage systems, evaporative cooling, night ventilation, solar gains and night sky radiation cooling. The results reflect the impact of passive design strategies on the houses' comfort and efficiency, as well as their influence in helping to achieve the Zero Energy Buildings category

Diseño y elaboración de experimentos demostrativos para la enseñanza de la física en la aula de clase

This article summarize the aspects of the research "DISEÑO Y ELABORACIÓN DE EXPERIMENTOS DEMONSTRATIVOS PARA LA ENSEÑANZA DE LA FÍSICA EN EL AULA DE CLASE" coordinated by the professors of the school of education and the school of Exact and Natural sciencces in cooperation with seven students from the school of education.El presente artículo resume aspectos de la investigación "DISEÑO Y ELABORACIÓN DE EXPERIMENTOS DEMOSTRATIVOS PARA LA ENSEÑANZA DE LA FÍSICA EN EL AULA DE CLASE" coordinada por profesores de la Facultad de Educación y de la Facultad de Ciencias Naturales y Exactas con la colaboración de siete estudiantes de la Facultad de Educación

Enhancing Bioproducts in Seaweeds via Sustainable Aquaculture: Antioxidant and Sun-Protection Compounds

Marine macroalgae are considered an untapped source of healthy natural metabolites and their market demand is rapidly increasing. Intertidal macroalgae present chemical defense mechanisms that enable them to thrive under changing environmental conditions. These intracellular chemicals include compounds that can be used for human benefit. The aim of this study was to test cultivation protocols that direct seaweed metabolic responses to enhance the production of target antioxidant and photoprotective biomaterials. We present an original integrated multi-trophic aquaculture (IMTA) design, based on a two-phase cultivation plan, in which three seaweed species were initially fed by fish effluents, and subsequently exposed to various abiotic stresses, namely, high irradiance, nutrient starvation, and high salinity. The combined effect of the IMTA’s high nutrient concentrations and/or followed by the abiotic stressors enhanced the seaweeds’ content of mycosporine-like amino acids (MAAs) by 2.3-fold, phenolic compounds by 1.4-fold, and their antioxidant capacity by 1.8-fold. The Sun Protection Factor (SPF) rose by 2.7-fold, and the chlorophyll and phycobiliprotein synthesis was stimulated dramatically by an order of magnitude. Our integrated cultivation system design offers a sustainable approach, with the potential to be adopted by emerging industries for food and health applicationsPartial funding for open access charge: Universidad de Málag

Canopy River - meio ambiente, sociedade e lucratividade: um equilíbrio estratégico na empresa de turismo rural

This case study outlines the combination of business strategies that build on the protection of the environment and on social benefit, which have been used by Canopy River to generate profits in the adventure travel industry. The research approach to the study included in-depth interviews, documentary review, observation and interaction with the organization community in order to identify the actions carried out between 2007 and 2016. The results reflect the overall characteristics of both the organization and its environment, the strategic profitability and growth measures, the protection of the environment and social contribution, as well as case related aspects evidencing the balance between the strategic elements observed.El presente caso de estudio muestra la combinación de estrategias de negocios fundamentadas en el cuidado del entorno y beneficio social, que la compañía Canopy River ha utilizado para la generación de utilidades en el contexto del turismo de aventura. La estrategia de investigación para el estudio incluyó entrevistas en profundidad, revisión documental, observación y la interacción con la comunidad de la organización para identificar las acciones realizadas entre el 2007 y 2016. Los resultados muestran las características generales de la organización y las de su ambiente, las medidas estratégicas de rentabilidad y crecimiento, cuidado ambiental y contribución social, así como razonamientos respectivos del caso que dan cuenta del equilibrio entre los elementos estratégicos observados.O presente caso de estudo é a combinação de estratégias de negócios fundamentadas no cuidado do entorno e benefício social, que a empresa Canopy River tem usado para a geração de atividades no contexto do turismo de aventura. A estratégia de investigação para o estudo incluiu as entrevistas em profundidade, revisão documental, observação e interação com a comunidade da organização para identificar ações executadas entre 2007 e 2016. Os resultados mostram as características gerais da organização e seu ambiente, as medidas estratégicas de rentabilidade e crescimento, cuidado ambiental e contribuição social, bem como raciocínios respectivos do caso que mostram o equilíbrio entre os elementos estratégicos observados

Aplicación grupal del protocolo unificado para el tratamiento transdiagnóstico de los trastornos emocionales en una muestra universitaria

There are currently few studies that support the efficacy of the Unified Protocol (UP) for the transdiagnostic treatment of emotional disorders in university samples. The aim of this study was to evaluate the validity of the PU in a group format, in online and face-to-face modalities, in university students. The sample consisted of 35 participants who requested assistance at the Psychological Attention Service (SAP) of the University of Cadiz. The following assessment instruments were administered: NEO-FFI; STAI; CORE-OM; SCL-90-R; PANAS and BEAQ; as well as an ad hoc questionnaire. The intervention consisted of the application of 12 sessions of the PU in groups of 8-10 participants, for 90 minutes. The results showed an improvement in the emotional management of the participants. Anxiety and depressive symptoms were reduced. The subjective well-being and functioning of the students improved. In addition, the PU was effective as a coping strategy for experiencing negative emotions, reducing experiential avoidance. In relation to the application format, both the online and face-to-face formats proved to be effective in improving the present symptomatology. Therefore, the PU seems to show its clinical usefulness in addressing emotional disorders in this population both online and face-to-face.Actualmente son pocos los estudios que avalan la eficacia del Protocolo Unificado (PU) para el tratamiento transdiagnóstico de los trastornos emocionales en muestras universitarias. El objetivo de este trabajo ha sido evaluar la validez del PU en formato grupal, en modalidad online y presencial, en alumnado universitario. La muestra estuvo compuesta por 35 participantes que demandaron asistencia en el Servicio de Atención Psicológica (SAP) de la universidad de Cádiz. Se administraron como instrumentos de evaluación: NEO-FFI; STAI; CORE-OM; SCL-90-R; PANAS y BEAQ; además de un cuestionario ad hoc. La intervención se compuso de la aplicación de 12 sesiones del PU en grupos de 8-10 participantes, durante 90 minutos. Los resultados mostraron una mejora en la gestión emocional de los participantes. Se redujo la sintomatología ansiosa y depresiva. Mejoró el bienestar subjetivo y funcionamiento del alumnado. Asimismo, el PU resulto eficaz como estrategia de afrontamiento ante la experimentación de emociones negativas reduciendo la evitación experencial. En relación al formato de aplicación, tanto el formato online como presencial resulto ser eficaz para mejorar la sintomatología presente. Por tanto, el PU parece mostrar su utilidad clínica en el abordaje de los trastornos emocionales en esta población tanto de forma online como presencial