Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

La caminabilidad describe la facilidad y comodidad con la que las personas pueden desplazarse a pie en un entorno urbano de manera ágil y fluida. Para analizar este aspecto, se utiliza el índice de caminabilidad, un indicador que relaciona el espacio público con la infraestructura y las condiciones que la ciudad ofrece para que los peatones puedan desplazarse de un lugar a otro de manera segura, cómoda y eficiente. Planificar ciudades caminables ofrece beneficios en salud, bienestar, eficiencia e inclusión para sus habitantes. Este trabajo construye un índice de caminabilidad en la Carrera Tercera entre calles 10 y 19 en Ibagué, Colombia. Se utilizó una metodología de 4 fases: contextualización de la zona, recolección y categorización de datos, construcción del indicador y aplicación del índice. Se obtuvo un puntaje de 3.27 en una escala de 1 a 5. Aunque la infraestructura tuvo puntajes altos, las variables socioambientales impactaron el resultado final, subrayando la necesidad de crear espacios que fomenten la interacción social y la convivencia comunitaria.

Although previous studies have examined the spatial distribution of the aging population in various regions of the world, a significant knowledge gap remains regarding South America. This research aims to address the accelerated demographic change towards an older urban population in cities that have not been planned for this shift and have not developed adaptive urban planning strategies. Socioeconomic and spatial typologies that influence urban aging trajectories in Santiago, Chile, were identified using three methods: geospatial analysis, a data panel, and k-means clustering analysis. It was found that there is a shift in the areas of concentration of older adults, from central to peripheral communes, and that variables such as single-parent families, population density, and high educational levels are factors that increase the concentration of older adults at a communal level. In contrast, homeownership has a negative influence.

This article presents reflections on the research process conducted through inter-institutional coordination between public and private entities in the San Francisco sector of the Siloé neighborhood in Cali, Colombia, between 2018 and 2023. Objective: Work with a vulnerable community in the face of socio-environmental challenges, motivating their participation and empowerment as agents of change, while strengthening neighborhood ties that support urban space improvement processes in the sector. Methodology: This qualitative study employed elements of Participatory Action Research (PAR) to implement actions aimed at improving public space on a neighborhood scale. The goal was to foster training and neighborhood integration through a new social and community feeling, achieved via urban routes, participatory workshops, and focus groups. Results: Application of a community-based project strategy that channels the potential of community leadership and allows progress towards cities with more articulated, functional public spaces that operate in the service of the community. Conclusions: The project led to the formation of the neighborhood collective “Camino al Barrio,” a strategy with a pedagogical approach to encourage citizen participation and collective appropriation of neighborhood public space.

Climate change is a global challenge with uneven impact. In Ecuador, the Quevedo Canton, due to its geographical location and topographical characteristics, is vulnerable to climate risks. This study identified the vulnerability to climate change linked to urban growth in the Quevedo Canton. Geographic information system (GIS) tools were used to generate maps of threat, exposure, sensitivity, adaptation, and climate risk through a quasi-experimental design and a quantitative approach. The results indicate a high overall climate risk, with 32.62% of the territory being highly exposed, particularly in areas with steep slopes. Areas with high sensitivity and low adaptive capacity are mainly rural and peripheral. In conclusion, population growth leads to unplanned urban expansion, resulting in adverse environmental impacts, including degradation of vegetation cover, which reduces ecological resilience and the provision of ecosystem services. This increases exposure and sensitivity (associated with inadequate infrastructure) and reduces adaptive capacity. It is proposed to improve drainage infrastructure, build more resilient housing, implement climate change education and training programs, and promote nature-based solutions.

Sidewalks and pedestrians are vital components of urban life, playing a crucial role in sustaining the sustainability and livability of cities. High-quality sidewalks contribute to creating safer and more vibrant urban spaces. Given the significant social, economic, and cultural benefits of walking, efforts to improve sidewalk conditions have attracted considerable attention in recent years. This study seeks to evaluate the condition and quality of urban sidewalks in Ahvaz, a city in southwestern Iran. The assessment is based on data collected through questionnaires completed by geography and urban planning experts. A fuzzy inference system implemented in MATLAB software was employed to identify the rules underlying the evaluation of sidewalk quality. Subsequently, the questionnaire data were analyzed using Entropy, WASPAS, and IDW interpolation methods. The analysis resulted in the identification of 18 distinct rules for assessing sidewalk quality. The findings indicate that sidewalks in Region Three exhibit the highest quality, while those in Region Seven rank the lowest. Overall, the study reveals that most sidewalks in Ahvaz are of very poor quality, with issues such as unsuitable slopes being significant contributing factors.  

Hacia un Urbanismo Resiliente e Inclusivo El avance implacable del crecimiento urbano y los desafíos globales contemporáneos han colocado a nuestras ciudades en el epicentro delas problemáticas del siglo XXI. Más de la mitad de la población mundial vive en áreas urbanas, y esta cifra sigue en aumento, presionando a los sistemas sociales, económicos y ambientales. Sin embargo, las ciudades también representan una oportunidad única para fomentar el desarrollo sostenible. Para aprovechar esta oportunidad, es crucial contar con directrices claras y requisitos específicos que se adapten a las necesidades locales.

The teaching and learning of programming in the context of systems engineering, given the great acceptance that this university training program has, becomes more and more a reason not only for research but also for permanent inquiry to find ways that facilitate said learning. The relevance of the concept of function both from the functional paradigm and from the imperative and object-oriented paradigm invites us to think about methodologies that facilitate and simplify said learning. An experimental test was carried out with two groups in parallel per semester so that one group is a research group, and the other is a reference group, between the first semester of 2020 and the second semester of 2021, inclusive. The results show a notable tendency to favor the learning of the concept of function when there is a structure that enables its understanding, design, and application. It is concluded that to the extent that learning strategies are investigated in relation to the concept of function, learning to program will be significantly simplified in both program development and conceptualization.

Waste biomass generation, such as plant waste,is one of the environmental problems with a major impact,and frequently,their use strategiesare focused on obtaining products such as biofertilizers, compost,or animal feed. The area trend has shown that the biorefinery processes of residual biomass havebecome a strategy that, within the framework of the circular economy, can valorize these wastes by obtaining biomolecules of greater interest for their application in different industrial sectors, generating added value to the processes where these wastes are generated.This review aimsto present different alternatives for usingvegetable waste generated in marketplaces to obtain products with industrial potential. For this purpose, a bibliographic search was carried out in databases with a restriction of terms associated withthe topic of study, which were classified according to their application in obtaining different products, finding that among the alternatives of use, the use of these wastes for the elaboration of substrates in microbial enzymesproduction, andbiomolecules such as polyphenols, carotenes, lycopene, vanillin, pectin, colorants and products such as essential oils, is presented.

In the Orinoquia region, the information generated about the order Trichoptera is scarce. This study analyzed the assemblage of caddis larvae in the Quenane-Quenanito channel at a spatial level, during two hydrological periods (low water transition: TAB and low water transition: AB). They were collected with red surber in six stations and some physical and chemical variables were measured. 1142 individuals distributed in 8 families and 22 genera were identified, where Hydropsychidae (70.31%). Philopotamidae (10.07%), and Smicridea and Chimarra were the most representative taxa. Total beta diversity was higher in AB compared to TAB. The NDMS analysis showed groupings that indicated differences in the composition of the stations according to the hydrological period. The RDA (redundancy analysis) indicated that the variables COD, fecal coliforms and conductivity were important. Several types of environmental disturbances were evidenced, which indicates the need to seek alternatives to minimize the impacts on the aquatic biota

Natural extracts are an inexhaustible source of organic compounds with a wide variety of applications such as, medicinal, pharmacological, environmental, among others; For this reason they have become the object of study in a large number of areas and specialties at industrial level. The present review shows the results of the use of extracts of natural origin with potential inhibition effect in corrosion processes on steel surfaces, given the amount of molecules that act synergistically in the process, such as flavonoids, coumarins and alkaloids, etc. which increase the prospects and research in the search for environmentally friendly alternatives and which contribute to the reduction of environmental impacts associated with increasing the water and carbon footprint, corrosion effect.