Regaining the Shore Agency of Maracaibo. Coastal Waste Narratives

Maracaibo has lived from its territory, particularly the Maracaibo Lake. Throughout the years the lake has been exploited for its oil, resulting in a clear degradation. If design can serve as a narrative by interpreting the traces of the space, how can we read this broken space from the perception of its inhabitants? Understanding the notion of the area’s vulnerability, how can we acknowledge and have preferable measures for recognition and respectful use of the shore? The research is based on the concepts of spatial justice, community participation and empowerment to accomplish the regaining of this coastal space. It was observed through a historical and geographical analysis that the city has had little concern in integrating the coast to its planning, causing a fragmented space, and looks on the reasons and consequences this has had. This research develops a proposal through the selection of a case study community, Lago y Sol. This is made recollecting the community’s insight and narratives through participation methods like workshops and interviews. The data compiled served as a base to develop the design that aims to create a place for them to enjoy while addressing the issue of coastal waste. The intent is to present an example of how the natural and the built environment can bridge for a better urban development based on the imaginary of its direct users. Responding to the necessity for a better development, especially because of its rich potential for social encounter, in a country where much reconciliation is needed

Hydrogen-Bonding Organocatalysis Enabled Photocatalytic Intramolecular [2+2]-Cycloaddition Reaction

The combination of organocatalytic activation and photocatalysis for enabling the intramolecular [2+2]‐cycloaddition of enone‐ene substrates bearing one Lewis base binding site is reported. While in a variety of solvents a poor conversion or no reaction takes place in the absence of a hydrogen bonding catalyst, the corresponding ring‐fused cyclobutane products could be built in moderate to good yields using a synergistic dual iridium‐urea co‐catalytic system. Control and mechanistic studies supported the postulated interaction between the organocatalyst and the substrate, which proved essential for an efficient energy transfer from the photosensitizer

Estudio de factibilidad para la creación de una planta procesadora de productos derivados de plátano en la parroquia Roberto Astudillo, período 2013-2017.

En la parroquia Roberto Astudillo que pertenece al cantón Milagro, los productores agrícolas han asignado aproximadamente 300 hectáreas al cultivo de plátano, ya que es zona que por sus condiciones climáticas es apta para este tipo de cultivo, sin embargo el potencial de sus tierras, no ha logrado ser explotado mucho menos aprovechado por los medianos y pequeños productores habitantes del sector, debido a las diferentes causas que han incidido en el desperdicio de la fruta, entre las cuales se citan el desconocimiento de mercados, demanda no identificada, ausencia de transporte e infraestructura, deficientes sistemas administrativos, escasa asistencia técnica desinterés de organismo gubernamentales, aspectos que afectan a los ingresos económicos de los agricultores dedicados a esta labor. En el marco teórico los aspectos considerados son aquellos vinculados al a producción y a la seguridad alimentaria tanto del país como del exterior. El propósito de este trabajo en la fase investigación es relevar aquellos aspectos que inciden en la problemática para plantear soluciones a los mismos y aportar el crecimiento desarrollo de la zona. Se ha utilizado el método cuantitativo para el desarrollo de la investigación, el instrumento para la toma de información es la encuesta que ha permitido la verificación de la hipótesis. La importancia de este trabajo es que sirve de base para proponer soluciones a la situación observada y determinada como aspectos que inciden en el problema. Los beneficiarios son los productores de la zona e indirectamente toda la población ya que a través del planteamiento de la propuesta generará empleo en el proceso agroindustrial. Finalmente hemos concluido que le desarrollo de la zona pasa por las iniciativas de los productores, su capacitación técnica y administrativa, el interés de los organismos gubernamentales tanto locales como nacionales

Quality Control Analysis to Detect Defects in Drywall Fastener Screws

Los tornillos son piezas diseñadas para unir dos o más elementos, compuestos por tres partes principales: cabeza, cuello y rosca. Dependiendo del tipo de material del que estén hechos, su tamaño y funcionalidad pueden adquirir diferentes características. En este artículo se describe la forma en que se evaluó una muestra de 200 tornillos de 2 pulgadas utilizados para drywall con el fin de detectar posibles defectos en su proceso de fabricación, mediante la aplicación de herramientas de calidad, con lo cual se analizan los principales factores que intervienen para lograr la mejor calidad. de estos productos fueron determinados. Además, el estudio de un caso real nos permitió demostrar mejoras factibles que se pueden aplicar no solo en un área determinada, sino en toda la industria, ya que la calidad de un producto también determina el crecimiento potencial de una empresa. Los resultados obtenidos mostraron el grado de afectación de cada defecto, siendo recomendable que la empresa se enfoque en tornillos torcidos, tornillos con puntas deformadas y tornillos con medidas incorrectas, ya que estos representan mayores pérdidas. En conclusión, en la industria es necesario el uso y manejo de herramientas para incrementar la productividad y calidad de los procesos, logrando así un impacto significativo en todas las áreas de producción.Screws are pieces designed to join two or more elements, they are composed of three parts that are thread, neck, and head. Depending on the type of material they are made of their size and functionality can acquire different characteristics. This article describes the way in which a sample of 200 2-inch screws used for drywall were evaluated to detect potential failures in their manufacturing, through the application of quality tools, with which the main factors that intervene to achieve the best quality of these products were determined. In addition, the study of a real case allowed us to demonstrate feasible improvements that can be applied not only in a certain area, but in the whole industry, since the quality of a product also determines the potential growth of a company. The results obtained showed the degree of affectation of each defect, being advisable for the company to focus on bent screws, screws with deformed tips and screws with incorrect measurements, as these represent greater losses. In conclusion, in the industry it is necessary to use and manage tools to increase the productivity and quality of the processes, thus having a significant impact on all areas of production, achieving the best possible final product

The Socio-Educational Adaptation of Secondary School Migrant Students in Sicily: Migrant Generation, School Linguistic Mediation and Teacher Proactivity Factors

This study aims to analyze the implications of linguistic mediation processes and educational proactivity in schools for the socio-educational adaptation of immigrant students. The study is based on empirical research and the perspectives of the main actors: the immigrant students themselves. To this end, a non-experimental and descriptive quantitative methodology was used. The sample consisted of 100 students of foreign origin enrolled in an Italian school located in a typical socio-cultural environment. The results show significant differences in linguistic mediation and socio-educational variables and differences in expectations of progress and social adaptation of students born outside Italy vis-a-vis students who, although born in Italy, are still considered foreigners. It will also analyze teaching proactivity as a communication facilitator for first-generation immigrant pupils born outside Italy. In conclusion, it is noted that, to favor multicultural environments where all students, regardless of their origin, feel accepted, integrated, and welcomed, it is necessary to utilize all available resources to promote improvements in teaching-learning processes and strengthen social relation

Experimental Analysis of the Reaction Rate of Hydrated Class G Cement Powder at 11 bar PCO2 and Ambient Temperature

The aim of this work is to study the alteration of class G Cement at ambient temperature under a relatively high CO2 partial pressure through suitably designed laboratory experiments, in which cement hydration and carbonation are taken into account separately. First, the hydration process was carried out for 28 days to identify and quantify the hydrated solid phases formed. After the completion of hydration, accompanied by partial carbonation under atmospheric conditions, the carbonation process was investigated using a stirred micro-reactor by reacting cement powder with pure CO2(g) (PCO2 = 11 bar) and MilliQ water for different reaction times. The reaction time was varied to constrain the reaction kinetics of the carbonation process and to investigate the evolution of primary and secondary solid phases. Mineralogical analyses (X-ray Powder Diffraction and Scanning Electron Microscope) were carried out to this purpose. Water analyses were also performed by ion chromatography at the end of each experimental run to investigate the chemical effects of cement carbonation on the aqueous solution. The carbonation degree was calculated from the results of Thermo-Gravimetric analysis (TGA). The main results of these experiments is the quick conversion of portlandite and Ca1.60SiO3.6·2.58H2O (C-S-H) to calcite. In fact, the carbonation degree attains 80% after 6 hours of reaction time. Experimental outcomes will be simulated by means of the PHREEQC software package to obtain further indications on cement carbonatio

Ecological risk assessment of organic waste amendments using the species sensitivity distribution from a soil organisms test battery

Safe amendment rates (the predicted no-effect concentration or PNEC) of seven organic wastes were estimated from the species sensitivity distribution of a battery of soil biota tests and compared with different realistic amendment scenarios (different predicted environmental concentrations or PEC). None of the wastes was expected to exert noxious effects on soil biota if applied according either to the usual maximum amendment rates in Europe or phosphorus demands of crops (below 2 tonnes DM ha−1). However, some of the wastes might be problematic if applied according to nitrogen demands of crops (above 2 tonnes DM ha−1). Ammonium content and organic matter stability of the studied wastes are the most influential determinants of the maximum amendment rates derived in this study, but not pollutant burden. This finding indicates the need to stabilize wastes prior to their reuse in soils in order to avoid short-term impacts on soil communities

La casa de Alicia en el país de las maravillas: la casa del SER en su contexto

Peer Reviewe

Miradas colectivas de los departamentos del Huila y Tolima, municipios Neiva, Santa Maria y Armero Guayabal

Las problemáticas que pueden existir en una comunidad pueden ser tan amplias como diversas a la hora de verificar y hacer una observación investigativa de la misma, son los miembros de estas comunidades quienes dan a conocer sus necesidades y como pueden implicar de forma precisa la realización de posibles soluciones que conlleven a un bienestar psicosocial y a una mejor calidad de vida en determinado contexto. Como miembros activos y en constante cambios, se busca la solidaridad y pertenencia hacia las situaciones que se presenten y que puedan afectar o beneficiar a la comunidad, con miras objetivas orientados a restablecer soluciones acordes a los objetivos y metas trazadas que cooperen a la mejora de la convivencia. Las necesidades de los miembros varían según las costumbres, tradiciones y cultura que se tenga en dicha comunidad, no es una tarea fácil dar vía libre y poder ser contundente con las soluciones, pero el trabajo en equipo, será una de las opciones que incidan en el cumplimiento de los diferentes lineamientos propuestos en beneficio individual y colectivo de la comunidad.The problems that can exist in a community can be as wide as diverse when it comes to verifying and making an investigative observation of it, it is the members of these communities who make known their needs and how they can imply in a precise way the realization of Possible solutions that lead to a psychosocial well-being and a better quality of life in a given context. As active and constantly changing members, we seek solidarity and belonging to the situations that arise and that can affect or benefit the community, with objective aims aimed at restoring solutions according to the objectives and goals outlined that cooperate to improve The coexistence. The needs of the members vary according to the customs, traditions and culture that they have in that community, it is not an easy task to give way and be able to be forceful with the solutions, but the teamwork will be one of the options that affect The fulfillment of the different guidelines proposed for the individual and collective benefit of the communit