Abstract Monkey mortality in Costa Rica is due, in most cases, to anthropogenic factors, such as deforestation, forest fragmentation, lack of tree connectivity, and tourism development in most coastal areas. The latter factor has caused the death of at least 450 monkeys per year due to electrocution, as a result of the increase in electrical wiring that has arisen in the different regions with urban development. Faced with this threat, proposals have been developed to avoid the danger, such as the construction of appropriate passage infrastructure for monkeys, the placement of insulated wiring, and the protection of electrical transformers. Using the morphometric measurements of the four species of monkeys native to Costa Rica (Alouatta palliata, Ateles geoffroyi, Saimiri oerstedii, and Cebus imitator), a model of safe and functional aerial passages or bridges for them was designed, the foundations of which are discussed in this article.

Resumen La mortalidad de los monos en Costa Rica se debe, en la mayoría de los casos, a factores antropogénicos, como la deforestación, la fragmentación de los bosques, la falta de conectividad arbórea y el desarrollo turístico en la mayoría de las zonas costeras. Este último factor ha provocado la muerte de al menos 450 monos por año debido a la electrocución, a raíz del aumento del cableado eléctrico que ha surgido en las diferentes regiones con desarrollo urbanístico. Ante esta amenaza se han elaborado propuestas para evitar el peligro, como la construcción de infraestructura de paso apropiada para los monos, la colocación de cableado aislado y la protección de los transformadores eléctricos. Utilizando las medidas morfométricas de las cuatro especies de monos nativas de Costa Rica (Alouatta palliata, Ateles geoffroyi, Saimiri oerstedii y Cebus imitator), se diseñó un modelo de pasos aéreos o puentes seguros y funcionales para ellos, cuyos fundamentos se discuten en el presente artículo.

Chitosan (CS) blends with collagen (CL) and Aloe vera (AV) have gained significant attention in the biomedical field due to their biocompatibility, biodegradability, and potential for wound healing applications. In this study, we investigated the preparation and characterization of CS/CL and CS/AV blends using selective precipitation and co-precipitation techniques. The synthesis processes were analyzed for yield and 4-hydroxyproline content (in CS/CL blends). The materials were characterized using bromatological analyses, viscosity measurements, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). These eco-friendly methods effectively promoted interactions between the biopolymers, resulting in homogeneous blends with tunable properties. Besides, they are simple, fast, safe, and require minimal infrastructure. This study demonstrated that selective precipitation and co-precipitation are effective methods for producing chitosan/collagen and chitosan/Aloe vera blends. These methods foster interactions and miscibility between the biopolymers, as confirmed by FTIR, XRD, viscosity, and 4-Hy content analyses. They also align with green chemistry principles by avoiding organic solvents, reducing environmental risks, and minimizing waste. The high yields achieved, especially for CS/AV blends (exceeding 96%), make these materials compatible with lyophilization procedures. The absence of segregated phases after appropriate washing underscores their suitability for pharmaceutical formulations and other applications. CS (CS CL (CL AV (AV biocompatibility biodegradability applications CSCL CSAV coprecipitation co techniques 4hydroxyproline hydroxyproline 4 . blends) analyses measurements Fouriertransform Fourier transform FTIR , (FTIR) Xray X ray XRD (XRD) SEM. SEM (SEM) ecofriendly eco friendly biopolymers properties Besides simple fast safe infrastructure chitosancollagen chitosan chitosanAloe 4Hy Hy solvents risks waste achieved exceeding 96%, 96 96% 96%) procedures (FTIR (XRD (SEM 9

Abstract Introduction: The problem of energy security has already been addressed from a multidimensional approach, but always associated with a geopolitical, national security or sovereignty issue. Internal security during neoliberalism represents a process of inflation of the penal system. Thus, energy security, even from a multidimensional approach, is blurred if an approach that criminalizes those who self-manage access to the rights to adequate life and housing, to energy and to the city predominates. Objective: The main objective of this article is to propose a new way of understanding the problem of energy security, taking it from a watertight concept to a pendulum between "security/insecurity" that serves to weigh the degree of enjoyment of these rights. Methodology: For this purpose, housing fires between 2018 and 2023 in a city of 640 thousand inhabitants (Salta, Argentina) were collected, analyzed and systematized, and this information was crossed with data from the National Registry of Popular Neighborhoods and the Municipality of Salta. Conclusions: This allowed concluding that reappropriating "energy security" as a shield to guarantee access to rights is a fertile ground not only for academic purposes, but also for legal, social and political ones.

Resumo Introdução: O problema da segurança energética já foi tratado a partir de uma abordagem multidimensional, mas sempre associado a uma questão geopolítica, de segurança nacional ou de soberania. A segurança interna sob o neoliberalismo representa um processo de inflação do sistema penal. Assim, a segurança energética, mesmo a partir de uma abordagem multidimensional, fica embaçada se predominar uma abordagem que criminaliza aqueles que autogerenciam o acesso aos direitos à vida e à moradia adequadas, à energia e à cidade. Objetivo: O principal objetivo deste artigo é propor uma nova forma de entender o problema da segurança energética, levando-o de um conceito estanque para um pêndulo entre "segurança/insegurança" que serve para ponderar o grau de gozo desses direitos. Metodologia: para isso, foram coletados, analisados e sistematizados os incêndios em moradias entre 2018 e 2023 em uma cidade de 640.000 habitantes (Salta, Argentina), e essas informações foram cruzadas com dados do Registro Nacional de Bairros Populares e do Município de Salta. Conclusões: Isso levou à conclusão de que a reapropriação da "segurança energética" como escudo para garantir o acesso a direitos é um terreno fértil não apenas para fins acadêmicos, mas também para fins jurídicos, sociais e políticos.

Resumen Introducción: el problema de la seguridad energética ha sido ya abordado desde un enfoque multidimensional, pero siempre asociado a una cuestión geopolítica, de seguridad nacional o de soberanía. La seguridad interna durante el neoliberalismo representa un proceso de inflación del sistema penal. Así, la seguridad energética, incluso desde un enfoque multidimensional, se desdibuja si predomina un enfoque que criminalice a quienes se autogestionan el acceso a los derechos a la vida y vivienda adecuadas, a la energía y a la ciudad. Objetivo: el objetivo principal de este artículo es proponer una nueva forma de comprender el problema de la seguridad energética, llevándola de un concepto estanco a un péndulo entre “seguridad/inseguridad” que sirva para ponderar el grado de goce de esos derechos. Metodología: para ello, se recopilaron, analizaron y sistematizaron los incendios de viviendas entre 2018 y 2023 en una ciudad de 640 mil habitantes (Salta, Argentina) y se cruzó esa información con datos del Registro Nacional de Barrios Populares y de la Municipalidad de Salta. Conclusiones: ello permitió concluir que reapropiarse de la “seguridad energética” como escudo para garantizar el acceso a derechos es un terreno fértil no sólo a los fines académicos, sino también jurídicos, sociales y políticos.

Abstract Purpose: To identify the challenges faced by nanomedicine in Mexico, according to the opinion of experts in the field. Methodological design: Semi-structured interviews were conducted with Mexican researchers in the field of nanomedicine. The participants were selected through purposive sampling. Interviews were both online and face-to-face. The information was processed with ATLAS.ti software. Results: Challenges were identified in different areas: financing, social benefit, human resources, infrastructure, nanotoxicology, patenting, preclinical and clinical research, academia-industry linkage, regulation, scientific policy and multidisciplinary work. Research limitations: Interviews included researchers only. It would be necessary to interview other agents involved in the nanomedicine chain of value, such as entrepreneurs and health sector managers. Findings: The main challenges facing nanomedical research in Mexico are the following: reduced funding, research with little impact on society, lack of specific educational programs in nanomedicine, low patenting activity, weak links between academia and industry, and lack of regulation. Some proposals to address these challenges are analyzed in this paper.

Resumen Objetivo: Identificar los desafíos que enfrenta la investigación en nanomedicina en México según la opinión de expertos en la materia. Diseño metodológico: Se realizaron entrevistas semiestructuradas a investigadores mexicanos del área de nanomedicina. Los entrevistados fueron seleccionados a través de un muestreo intencional. Las entrevistas se llevaron a cabo de manera presencial y a distancia. El procesamiento de la información se realizó con el software ATLAS.ti. Resultados: Se identificaron desafíos en distintos rubros: financiamiento, beneficio social, recursos humanos, infraestructura, nanotoxicología, patentamiento, investigación preclínica y clínica, vinculación academia-industria, regulación, política científica y trabajo multidisciplinario. Limitaciones de la investigación: Las entrevistas se realizaron únicamente a investigadores. Sería necesario entrevistar a otros agentes involucrados en la cadena de valor de la nanomedicina tales como empresarios y funcionarios del sector salud. Hallazgos: Los principales desafíos que enfrenta la investigación nanomédica en México son el financiamiento reducido, investigaciones con poca incidencia en la sociedad, inexistencia de programas educativos específicos en nanomedicina, escaso patentamiento, nula vinculación con empresas y falta de regulación. Algunas propuestas para encarar estos desafíos se analizan en el presente trabajo.

Abstract The study of environmental comfort in open urban spaces has undergone constant updates in the last decades. In the meantime, the specific analysis of these aspects within the context of walkability stands out as an area with considerable potential to be investigated. In this context, this article aims to explore walkability in pedestrian routes and its relationship with environmental comfort, proposing a more systematized approach for its application in the strategic planning of cities. Therefore, we proposed the construction of a Pedestrian Walkability and Comfort Index (ICCP), composed of three partial indices that consider thermal, acoustic, and ergonomic aspects of pedestrian paths. The methodology is based on street visualization tools and Geographic Information System (GIS) tools to spatialize and systematize the interactions between walkability and environmental comfort. The research concludes that ICCP is a valid tool for measuring walkability at meso and micro scales, and it can be replicated in other urban contexts. Furthermore, the development and application of ICCP also highlight that rethinking walkability with environmental comfort in urban areas requires an integrated approach to the entire mobility system and urban infrastructure of cities. decades meantime investigated cities Therefore ICCP, , (ICCP) thermal acoustic paths GIS (GIS scales contexts Furthermore (ICCP

Resumo O estudo do conforto ambiental em espaços urbanos abertos está em constante crescimento. Contudo, a análise específica desses aspectos no contexto da caminhabilidade destaca-se como uma área com considerável potencial a ser investigado. Neste contexto, este artigo busca explorar a caminhabilidade nos percursos de pedestres e sua relação com o conforto ambiental, propondo uma abordagem sistematizada para sua aplicação no planejamento urbano estratégico. Propõe-se, assim, a construção de um Índice de Caminhabilidade e Conforto do Pedestre (ICCP) composto por três índices parciais que levam em consideração aspectos térmicos, acústicos e ergonômicos dos percursos de pedestres. A metodologia utilizada é baseada no uso de ferramentas de visualização de ruas e ferramentas de Sistemas de Informação geográfica (SIG) para espacializar e sistematizar as interações entre caminhabilidade e conforto ambiental. A pesquisa conclui que o ICCP se constitui como ferramenta válida para aferição da caminhabilidade na meso e microescalas, podendo ser replicada em outros contextos urbanos. Por último, a construção e aplicação do ICCP evidenciam, ainda, que repensar a caminhabilidade com conforto ambiental no meio urbano requerem uma abordagem integrada de todo o sistema de mobilidade e de infraestrutura urbana das cidades. crescimento Contudo destacase destaca investigado estratégico Propõese, Propõese Propõe se, Propõe-se assim (ICCP térmicos SIG (SIG microescalas último evidenciam ainda cidades

RESUMEN Paraguay ha aumentado la inversión en educación en la última década por medio del Fondo Nacional de Inversión Pública y Desarrollo (FONACIDE) cuya finalidad consiste en abordar las carencias que afectan a la educación paraguaya. Entonces, considerando la creciente preocupación por la gestión de los recursos públicos dada la escasa infraestructura y el deficiente servicio del almuerzo escolar, en este trabajo se pretende analizar la eficiencia de la gestión de los gastos públicos en educación del FONACIDE de los departamentos de Paraguay durante el período 2015 a 2017, a través de la aplicación de la técnica Data Envelopment Analysis (DEA) con análisis de ventana y retornos variables de escala con orientación producto. La técnica DEA con análisis de ventana consiste en medir el nivel de eficiencia de varias Decision Making Units (DMUs) en diferentes períodos de tiempo basado en el principio de promedios móviles. Los resultados muestran que la ineficiencia técnica pura media nacional es del 11,04%, por tanto, los departamentos en general podrían mejorar sus indicadores educativos utilizando los mismos niveles de financiamiento. Además, el mayor acceso a recursos no está vinculado a mejores rendimientos educativos. Por tanto, para potenciar el rendimiento educativo es necesario establecer otros criterios de redistribución presupuestaria del FONACIDE, considerando la necesidad de infraestructura y número de alumnos matriculados por departamento.

ABSTRACT Paraguay has increased investment in education over the past decade through the National Fund for Public Investment and Development (FONACIDE), whose goal is to address the deficiencies affecting Paraguayan education. Considering the growing concern over the management of public resources given the inadequate infrastructure and poor school lunch service, this paper aims to analyze the efficiency of public spending management in education by FONACIDE in the departments of Paraguay during the period 2015 to 2017. This is achieved through the application of the Data Envelopment Analysis (DEA) technique with window analysis and variable returns to scale with product orientation. The DEA technique with window analysis measures the efficiency level of several Decision-Making Units (DMUs) over different periods based on the moving averages principle. The results show that the average national pure technical inefficiency is 11.04%, meaning that the departments, in general, could improve their educational indicators using the same funding levels. Additionally, greater access to resources is not linked to better educational outcomes. Therefore, to enhance educational performance, it is necessary to establish other budget redistribution criteria for FONACIDE, considering the need for infrastructure and the number of enrolled students per department

Abstract Introduction. The coffee agroecosystems holds significant environmental, social, and economic importance in the subtropical regions of Mexico, but it is vulnerable to unexpected events such as climate change. In recent history, it has been documented that the coffee agroecosystem undergoes a constant process of self-organization based on adaptation and learning in the face of various adverse scenarios. Objective. To determine the resilience capacity of the coffee agroecosystem in the central region of the Veracruz state. Materials and methods. The research was conducted from December 2017 to November 2018 in Tezonapa, Veracruz, Mexico. Fifty-two interviews were conducted with coffee growers to measure the resilience index, which is composed of thirty variables corresponding to seven factors (social, economic, technological, infrastructure, communications, institutional, and environmental). These factors were normalized using the mim-max scaling method. Resilience was estimated on a scale of 0-1, where values close to zero represent low resilience capacity and values close to one, represent high resilience. The data were analyzed using descriptive statistics, Kruskal-Wallis tests, and Chi-squared tests. Results. Statistically significant differences (p<0,05) were found for the economic (0,06) and technological (0,22) dimensions indicators, which had the lowest contribution to resilience. Conversely, the social (0,78) and environmental (0,74) dimensions had a the highest contribution to resilience capacity, determined by the altitudinal gradient. Conclusion. The indicators that contributed the most to the resilience capacity of the coffee agroecosystem were those in the social and environmental dimensions, while the economic and technological dimensions contributed the least.

Resumen Introducción. El agroecosistema de café presenta gran importancia ambiental, social y económica en regiones subtropicales de México, pero también es vulnerable a eventos inesperados como el cambio climático. En la historia reciente, se ha documentado que el agroecosistema de café presenta un proceso constante de autoorganización basada en la adaptación y el aprendizaje ante los diversos escenarios adversos. Objetivo. Determinar la capacidad de resiliencia del agroecosistema cafetalero en la región centro del estado de Veracruz. Materiales y métodos. La investigación se realizó de diciembre de 2017 a noviembre de 2018 en Tezonapa, Veracruz, México. Se realizaron 52 entrevistas a caficultores para medir el índice de resiliencia, integrado por treinta variables, correspondientes a siete factores (social, económico, tecnológico, infraestructura, comunicaciones, institucional y ambiental). Estos factores fueron normalizados por el método de escalamiento mínimo-máximo. La resiliencia se estimó en una escala de 0-1, donde valores cercanos a cero representan baja capacidad de resiliencia y cercanos a uno, alta resiliencia. Los datos fueron analizados mediante estadística descriptiva y pruebas de Kruskal-Wallis y chi-cuadrado. Resultados. Se encontraron diferencias estadísticamente significativas (p<0,5) para los indicadores de las dimensiones económica (0,06) y tecnológica (0,22), con la menor contribución a la resiliencia. Por el contrario, las dimensiones sociales (0,78) y ambiental (0,74) tuvieron mayor contribución a la capacidad de resiliencia, determinado por el gradiente altitudinal. Conclusiones. Los indicadores con el mayor aporte a la capacidad de resiliencia del agroecosistema de café fueron los de dimensiones social y ambiental, y con bajo aporte las dimensiones económica y tecnológica.

Resumo: O ensaio aborda a importância da Educação Física na educação pré-escolar, enfatizando o seu papel no desenvolvimento integral das crianças. A obrigatoriedade da Educação Física é enfatizada de acordo com a Lei 7800 da Costa Rica, bem como a exigência de ter pessoal docente especializado para ministrar esta matéria. São também discutidos os benefícios disto na infância, incluindo o desenvolvimento de destrezas motoras, cog- nitivas e sociais, e é feito um apelo para que se dê mais atenção a esta área ao nível pré-escolar para fomentar hábitos saudáveis desde tenra idade. Além disso, menciona-se que a falta de atividade física na meninice pode ter consequências negativas para a saúde a longo prazo, por isso é recomendável ter infraestrutura adequada para ministrá-la na pré-escola. Da mesma forma, destaca-se a importância de contar com professores capacita- dos para promover o desenvolvimento ótimo na infância, visto que a Educação Física nesta etapa é crucial para o desenvolvimento motor, cognitivo, social e emocional. Conclui-se que a Educação Física na idade pré-escolar é importante para o desenvolvimento integral da meninice, promovendo hábitos saudáveis e contribuindo para o seu bem-estar ao longo da vida.

Resumen: En el ensayo se aborda la importancia de la Educación Física en la educación preescolar, enfatizando su papel en el desarrollo integral de las personas infantes. Se recalca la obligatoriedad de la Educación Física de acuerdo con la Ley 7800 en Costa Rica, así como el requerimiento de contar con personal docente especializado para impartir esta asignatura. También se discuten los beneficios de esta en la infancia, incluyendo el desarrollo de destrezas motoras, cognitivas y sociales, y se hace un llamado a prestar más atención a esta área a nivel de pre- escolar para fomentar hábitos saludables desde temprana edad. Además, se menciona que la falta de actividad física en la niñez puede tener consecuencias negativas en la salud a largo plazo, por lo que se recomienda contar con infraestructura adecuada para impartirla en preescolar. Así mismo, se destaca la importancia de contar con profesorado capacitado para promover un desarrollo óptimo en la infancia, dado que la Educación Física en esta etapa es crucial para el desarrollo motor, cognitivo, social y emocional. Se concluye que la Educación Física en la edad preescolar es importante para el desarrollo integral de la niñez, promoviendo hábitos saludables y contribuyendo a su bienestar a lo largo de su vida.

Abstract: The essay addresses the importance of physical education in preschool and emphasizes the role it plays in the integral development of young children. It discusses Law 7800 and the mandatory nature of physical education in Costa Rica and the requirement to have specialized teachers to teach this subject. It also discusses the benefits of physical education in childhood, which include the development of motor, cognitive and social skills, and urges more attention to this area in order to promote healthy habits from an early age, starting in preschool. It also highlights the long-term negative health effects that lack of physical activity can have on children and recommends that the infrastructure be appropriate for preschool age. It also stresses the importance of teachers being properly qualified to promote optimal child development, as this period is crucial for motor, cognitive, social and emotional development. The paper concludes that preschool physical education is important for the holistic development of children, promoting healthy habits and contributing to their well-being throughout their lives.

RESUMEN La presencia de agrupaciones del crimen organizado transnacional junto a otros aspectos en el contexto penitenciario y las condiciones de infraestructura y de dotación de los centros de rehabilitación social que se conjugan con la sobrepoblación que ocasiona el hacinamiento, se ubican como las principales causas de la crisis del sector penitenciario que ha traído como consecuencia situaciones de extrema violencia. La investigación realizada se enmarca en el estudio de la crisis carcelaria como un problema global, y tiene como objetivo realizar un análisis de la crisis penitenciaria en el Ecuador y la intervención de la cooperación internacional como un mecanismo para coadyuvar en asuntos de seguridad interna, especialmente mediante el apoyo a la lucha contra el crimen transnacional organizado, el cual se ha infiltrado en los centros de privación de la libertad. Mediante el empleo del método de análisis documental, se ha procurado el estudio de la situación carcelaria, la incidencia del crimen organizado y la necesidad de plantear soluciones en la esfera de la cooperación internacional; particularmente se describen los aspectos más relevantes del Programa de Asistencia contra el Crimen Transnacional Organizado Europa Latinoamérica (EL PAcCTO) procurando mostrar las posibles soluciones a la crisis descrita. Como conclusión, se muestra la relación existente entre distintos flagelos como la corrupción y la vulneración de los derechos humanos como aspectos que deberán ser atendidos.

ABSTRACT The presence of transnational organized crime groups, along with other aspects in the prison context, and the conditions of infrastructure and equipment of social rehabilitation centers, which combine with overcrowding, causing overcrowding, are the main causes of the crisis in the prison sector, which has resulted in situations of extreme violence. The research carried out is framed in the study of the prison crisis as a global problem, with the objective of carrying out an analysis of the prison crisis in Ecuador and the intervention of international cooperation as a mechanism to contribute to matters of internal security, especially by supporting the fight against transnational organized crime, which has infiltrated the centres of deprivation of liberty. Using the documentary analysis method, the study of the prison situation and the incidence of organized crime and the need to propose solutions in the field of international cooperation have been attempted, particularly the most relevant aspects of the Assistance Program against Transnational Organized Crime Europe Latin America (EL PAcCTO) are described, trying to show the possible solutions to the crisis described. In conclusion, the relationship between different scourges such as corruption and the violation of human rights is shown as aspects that must be addressed.

Abstract By the year of two thousand and nineteen, the private medical service industry growth was concentrated in the border cities of the Sonora state due to the large number of foreign patients and around six hundred thousand Sonora residents or descendants living in the state of Arizona (López, 2019). Hermosillo stands out among the border municipalities, thanks to its internationally certified private hospital infrastructure. However, the absence of post-operative-care as well as external services promoters in Mexico and internationally, combined with a fragmented value chain, have slowed down the growth of the medical industry in the capital (López, 2019). Our society is still in the first stages of digitalization therefore a universally accepted concept of digital economy has yet to be established. There's a gap between the available tools and the implementation in order to optimize the value chain and the customer experience. The current document contextualizes the private medical service industry in Hermosillo, Sonora within the digital economy through documentary research on digital resources, in the matters of politics, economics, social and technological context. In addition, the health crisis forced the digitalization of the commercialization processes in order to accomplish established objectives, thereby positioning the medical service industry as a participant in the digital economy.

Resumen Para el año dos mil diecinueve el crecimiento de la industria médica privada se daba más en las ciudades fronterizas del estado de sonora debido a la afluencia de pacientes extranjeros y unos seiscientos mil sonorenses o descendientes radicados en el estado de Arizona (López, 2019). Hermosillo destaca de los municipios fronterizos, gracias a la infraestructura privada hospitalaria certificada internacionalmente. Sin embargo, la ausencia de servicio postoperatorio al igual que agentes externos promotores de los servicios en el extranjero como en la república mexicana y una desconexión en la cadena de valor, han frenado el crecimiento de la industria médica en la capital (López, 2019). El concepto de economía digital no cuenta con una definición ampliamente aceptada, debido a que la sociedad se encuentra en las primeras etapas de digitalización. Existe una brecha entre las herramientas y su instrumentación para eficientar la cadena de valor y la experiencia del cliente. El presente documento contextualiza la industria privada de servicios médicos de Hermosillo, Sonora en la economía digital mediante una investigación documental de recursos digitales, esto en materia política, económica, social y tecnológica. Aunado a lo anterior la crisis sanitaria forzó a la digitalización de los procesos comerciales para lograr los objetivos planteados, por lo que la industria médica se convirtió en un actor de la economía digital.

Abstract. The search for missing persons, within the context of the war on drugs, takes on a different character when conducted in a city versus a small municipality, distant from the main political-economic centers. One might think there is no need to compare such contrasting realities, but the experiences of searching mothers living in municipalities far from urban areas indicate otherwise. This is expressed in the testimonies of my interlocutors who reside in Norte Grande -a fictitious name I use to refer to the area where I conduct ethnographic work. One of the main findings of this research is how the searchers vocalize a feeling of abandonment, largely stemming from the minimal presence of bureaucratic search infrastructure in their territories. In this regard, the concept of margin is essential for analyzing the impacts of the war in places we know as periphery or province.

Resumen. La búsqueda de personas desaparecidas, en el contexto de la guerra contra las drogas, se torna distinta cuando se desarrolla en una ciudad o un municipio pequeño; alejado de los principales centros político-económicos. Podríamos pensar que no existe la necesidad de cotejar dos realidades tan contrastantes, pero las experiencias de madres buscadoras que habitan municipios alejados de las urbes indican lo contrario. Así lo expresan los testimonios de mis interlocutoras que habitan Norte Grande -nombre ficticio que utilizo para referirme a la zona en que realizo trabajo etnográfico. Entre los resultados principales de esta investigación destaca la forma en que las buscadoras vocalizan un sentimiento de desamparo, que en buena parte radica en la manera en la cual la infraestructura burocrática de búsqueda tiene una baja presencia en sus territorios. En dicho sentido, el concepto de margen es fundamental para analizar los impactos de la guerra en aquellos lugares que conocemos como periferia o provincia.

Abstract Introduction: Urban development and expansion have led to the loss and transformation of Andean ecosystems. However, remnant forests that maintain biodiversity still exist around Colombia’s major cities, but these forests are threatened by the road infrastructure. Road ecology in the Neotropics has been focused specifically in documenting the effects of roadkill from a taxonomic point of view, mainly in rural areas. Objective: To evaluate ecologically and spatially, the collision of fauna on roads located in areas of urban expansion in the Northern Colombian Andes. Methods: We assessed vertebrate mortality rate and identified the critical areas of roadkill by taxonomic and functional groups. This was achieved through spatial ecology analysis, specifically Kernel density analysis and hotspot spatial statistical analysis. Additionally, we identified landscape features associated with road mortality and assessed the role of roads as resistance and permeability factors. Results: A total of 279 roadkilled animals belonging to 64 species were found, accounting for 28 % of the 273 vertebrate species recorded in the reserve near the studied roads. The average mortality rate for vertebrates was estimated from 42 to 170 individuals annually. Differential patterns were detected in roadkill density across taxonomic and functional groups, where nocturnal species and the trophic guilds are the most vulnerable. Likewise, it was found that the sections of the roads close to the forest have a greater roadkill species richness with greater ecological requirements. These sections constitute an important resistance to species movement in the area. Conclusions: Road mortality in the study area exhibits heterogeneous spatial patterns not only at a taxonomic but also at a functional level, suggesting the deterioration of protected ecosystems in adjacent peri-urban areas.

Resumen Introducción: El desarrollo y expansión urbana han generado la pérdida y transformación de los ecosistemas andinos. Sin embargo, alrededor de las grandes ciudades colombianas aún se encuentran relictos boscosos que mantienen gran riqueza de biodiversidad, la cual es amenazada por la infraestructura vial. El énfasis de los trabajos de Ecología de Carreteras en el Neotrópico ha estado centrado en el efecto del atropellamiento de fauna desde el punto de vista taxonómico. Objetivo: Evaluar, ecológica y espacialmente, el atropellamiento de la fauna en carreteras ubicadas en zonas de interés para la expansión urbana del norte de los Andes colombianos. Métodos: Se evaluaron la tasa de mortalidad de vertebrados, las zonas críticas de atropellamientos por grupo taxonómico y grupos funcionales. Esto se realizó por medio de análisis de ecología espacial, específicamente análisis de densidad de Kernel y análisis de estadística espacial de puntos calientes. Adicionalmente, se identificó las características del paisaje asociadas al atropellamiento y se evaluó el papel de las vías como factor de resistencia y permeabilidad. Resultados: Se encontraron 279 animales atropellados de 64 especies que representan el 28 % de las 273 especies vertebradas presentes en las áreas protegidas en inmediaciones de las carreteras estudiadas. Se estimó una tasa promedio entre 42 y 170 individuos atropellados por año. Se detectaron patrones diferenciales en la densidad de atropellamiento por grupos taxonómicos y funcionales, donde las especies nocturnas y el tipo de gremio trófico son los más vulnerables. Asimismo, se encontró que los tramos de las vías en cercanía a coberturas boscosas presentan mayor riqueza de especies atropelladas y con mayores requerimientos ecológicos. Estos tramos representan una resistencia importante al movimiento de las especies de la zona. Conclusiones: El atropellamiento presenta patrones espaciales heterogéneos, no solo a nivel taxonómico, sino también a nivel funcional, lo cual representa un deterioro para los ecosistemas protegidos en zonas periurbanas.

It presents the methodological aspects of the design and organization of the study Food Commercialization in Brazilian Schools, which aimed to evaluate aspects related to the commercialization of food and beverages in private schools, based on information collected from school cafeteria managers and street vendors located in the immediate surroundings of the schools. A cross-sectional study was conducted in private elementary and high schools that had cafeterias, in the 26 Brazilian state capitals and the Federal District. Simple random sampling with inverse replacement was used, and in the end, 2,241 cafeterias and 700 street vendors were evaluated. The proportion of sample loss was 21.2%. The questionnaire was developed and reviewed by specialists, covering questions about: food and nutritional information, infrastructure for meals, convenience, price, availability, variety, and promotion. The logistics included a coordinating team that conducted training, managed and controlled data quality, local researchers, and a company that assisted with fieldwork. The data collection took place between 2022 and 2024. The main implementation challenges were its overlap with the 2022 election period, episodes of violence in schools, internal school policies, and the complexity of Brazil’s cultural diversity and vast territorial extension. The study’s strengths include the novelty of the data collected in terms of depth and representativeness, the use of the generated evidence to propose public policies for regulating the school food environment, and the support in building a network of researchers on the topic.

Se presentan los aspectos metodológicos de la concepción y organización del estudio Comercialización de Alimentos en Escuelas Brasileñas, cuyo objetivo fue evaluar aspectos relacionados con la comercialización de alimentos y bebidas en escuelas privadas, a partir de información recopilada de los gestores de cantinas escolares y vendedores ambulantes presentes en el entorno inmediato de las escuelas. Se realizó un estudio transversal en escuelas privadas de enseñanza primaria y secundaria que contaban con cantinas, en las 26 capitales brasileñas y en el Distrito Federal. Se empleó un muestreo aleatorio simple con reposición inversa, y al final se evaluaron 2.241 cantinas y 700 vendedores ambulantes. La proporción de pérdidas muestrales fue del 21,2%. El cuestionario fue desarrollado y evaluado por especialistas, abarcando cuestiones sobre: información alimentaria y nutricional, infraestructura para la alimentación, conveniencia, precio, disponibilidad, variedad y promoción. La logística contó con un equipo coordinador que llevó a cabo las capacitaciones, gestionó y controló la calidad de los datos, investigadores locales y una empresa que asistieron en el trabajo de campo. Las recolecciones de datos se llevaron a cabo entre 2022 y 2024. Las principales dificultades de implementación fueron su coincidencia con el período electoral de 2022, episodios de violencia en las escuelas, políticas internas de las escuelas y la complejidad de la diversidad cultural y la vasta extensión territorial brasileña. Como puntos fuertes se destacan la novedad de los datos recogidos en términos de profundidad y representatividad, el uso de la evidencia generada para proponer políticas públicas de regulación del entorno alimentario escolar y el apoyo en la construcción de una red de investigadores en la temática.

Apresenta os aspectos metodológicos da concepção e organização do estudo Comercialização de Alimentos em Escolas Brasileiras, que teve como objetivo avaliar aspectos relacionados à comercialização de alimentos e bebidas em escolas privadas, a partir de informações coletadas com gestores de cantinas escolares e ambulantes presentes no entorno imediato das escolas. Realizou-se um estudo transversal em escolas privadas, de ensino fundamental e médio que possuíam cantinas, nas 26 capitais brasileiras e no Distrito Federal. Foi empregada aleatória simples com reposição inversa, ao final, foram avaliadas 2.241 cantinas e 700 ambulantes. A proporção de perdas amostrais foi de 21,2%. O questionário foi desenvolvido e avaliado por especialistas contemplando questões sobre: informação alimentar e nutricional, infraestrutura para alimentação, conveniência, preço, disponibilidade, variedade e promoção. A logística contou com uma equipe coordenadora que conduziu os treinamentos, realizou a gestão e controle da qualidade dos dados, pesquisadores locais e uma empresa que auxiliaram no trabalho de campo. As coletas ocorreram entre 2022 e 2024. As principais dificuldades de implementação foram sua concomitância com o período eleitoral de 2022, episódios de violência nas&nbsp; escolas, políticas internas das escolas e a complexidade da diversidade cultural e a vasta extensão territorial brasileira. Como pontos fortes destacam-se o ineditismo dos dados coletados em profundidade e representatividade, o uso das evidências geradas para proposição de políticas públicas de regulação do ambiente alimentar escolar e o apoio na construção de uma rede de pesquisadores na temática.

Remote areas that lack conventional water-provisioning infrastructure often rely on rainwater harvesting, rivers, pans, reservoirs and borehole-extracted water to meet domestic water requirements. These water sources often have poor microbial quality and chemical composition, the quality of which is not routinely monitored. This study explored citizen science as a tool for Engaged Research and Responsible Research and Innovation, detailing the co-creation of a sustained community-based water quality monitoring program in collaboration with communities in villages in Amakhala Game Reserve (Eastern Cape, South Africa). Without access to other water sources, participants predominantly used rainwater for drinking and cooking (80%), while borehole water was mainly used for cleaning and gardening due to its salty or bitter taste. A hydrogen sulfide (H2S) water testing kit was used by the citizen scientists to monitor the water quality. The H2S kits were effective in estimating bacterial contamination, showing a proportional relationship with Colilert® test results conducted in a laboratory. The alignment observed between community-based monitoring results and those derived from scientist-led testing underscores the value of data produced through citizen science initiatives. Sustained participant engagement throughout this research reflected a sense of community empowerment through access to tools that inform their decision-making around water use and treatment as well as investment in the research, indicative of the perceived relevance of the research to community interests. This integration of transdisciplinary data sources holds promise for informing evidence-based decision-making processes, facilitating more effective and contextually informed water management strategies that value and integrate community perspectives alongside scientific insights. SIGNIFICANCE: Drawing on the principles of Engaged Research and Responsible Research and Innovation, we applied citizen science tools to engage researchers and communities in the co-development of a water quality monitoring program. In addressing a specific area of concern, raised by the remotely situated community around the need for knowing their water quality, the project successfully trained communities in applying water testing tools and fostered agency in decision-making around water treatment. Combined with continuous feedback and communication loops, a high rate of continuity was sustained among the participants.

Abstract: This study examines the current composition of the energy matrix in Colombia, encompassing its legal framework, configuration, impacts, and future projections. This research, based on a systematic literature review, bibliometric analysis, and text mining, reveals that hydroelectric power is the primary source of clean energy. Fossil fuels, although essential for energy availability in the territory, generate the largest carbon footprint, representing a significant environmental challenge. Despite legal efforts and projections towards clean energy, limitations persist in infrastructure, technology, and social acceptance towards energy production projects. The transition to a sustainable energy system requires overcoming these technical, regulatory, and social barriers while integrating legal, environmental, social, and technological aspects into planning to meet the goals of the current matrix's energy transition, which presents a complex landscape that demands comprehensive strategies for a sustainable energy future.

Resumen: Este estudio analiza la composición actual de la matriz energética en Colombia, abarcando su marco legal, configuración, impactos y proyecciones futuras. La investigación, basada en una revisión sistemática de literatura, análisis bibliométrico y minería de texto, revela que las hidroeléctricas son la principal fuente de energía limpia. Los combustibles fósiles, si bien esenciales para la disponibilidad energética en el territorio, generan la mayor huella de carbono, lo que representa un desafío ambiental significativo. A pesar de los esfuerzos legales y las proyecciones hacia energías limpias, persisten limitaciones en infraestructura, tecnología y aceptación social hacia proyectos de producción energética. La transición hacia un sistema energético sostenible requiere superar estas barreras técnicas, regulatorias y sociales, integrando aspectos legales, ambientales, sociales y tecnológicos en la planificación para cumplir con los objetivos de la transición energética de la matriz actual, la cual presenta un panorama complejo que exige estrategias integrales para un futuro energético sostenible.