Abstract (Introduction): Within the framework of the present capitalist system, human beings have become an important polluting agent. Current production and consumption processes do not consider the existence of finite natural resources and a planet incapable of treating the waste that the prevailing way of life generates. Given these circumstances, the study of non-linear models is of interest, which make a more rational use of the waste that the productive activity generates, favoring recycling mechanisms. The phenomenon of recycling becomes particularly relevant in the case of electrical and electronic devices, whose ability to be degraded and metabolized by planet Earth is extremely difficult. (Objective): Evaluate the feasibility of installing and starting a recycling plant for electrical and electronics items in the town of Bahía Blanca (Argentina), during 2021. (Methodology): The conventional method for evaluating investment projects was used, considering technical, legal and economic aspects. (Results): The project is not acceptable according to the profitability intended by the investor. The possibility of financing was also included, which made the project even less profitable, and the sensitivity of the results was measured, finding that the price should be 1.48 % higher than that used in the analysis. (Conclusions): Other alternatives must be explored to make this proposal profitable from an economic and financial point of view.

Resumen (Introducción): En el marco del sistema capitalista vigente, el ser humano se ha transformado en un agente significativo de contaminación. Las dinámicas productivas y de consumo actuales no contemplan la existencia de recursos naturales finitos y de un planeta incapaz de procesar los desperdicios que el modo de vida habitual genera. Dadas estas circunstancias, cobra interés el estudio de modelos no lineales, que hagan un uso más racional de los residuos derivados de la actividad productiva, los cuales favorezcan mecanismos de reciclaje. El fenómeno del reciclaje se vuelve, en particular, relevante para el caso de los artefactos eléctricos y electrónicos; la capacidad del planeta Tierra para degradarlos y metabolizarlos resulta sumamente difícil. (Objetivo): Evaluar la factibilidad de la instalación y puesta en marcha de una planta recicladora de artículos eléctricos y electrónicos en la localidad de Bahía Blanca (Argentina), durante el 2021. (Metodología): Se utilizó la metodología convencional de evaluación de proyectos de inversión, considerando aspectos técnicos, legales y económicos. (Resultados): El proyecto no es aceptable según la rentabilidad pretendida por el inversor. También se incluyó la posibilidad de un financiamiento, lo que hizo que el plan fuera menos rentable aún, y se midió la sensibilidad de los resultados: se halló que el precio debiera ser 1.48 % superior al utilizado en el análisis. (Conclusiones): Se deben explorar otras alternativas para lograr que el proyecto sea rentable desde el punto de vista económico-financiero.

Abstract The civil construction sector is one of the main consumers of natural resources and presents the need to implement sustainable practices in its activities. We sought to present an overview of sustainability practices that have been developed by the civil construction sector in Brazil and their contributions to achieving the Sustainable Development Goals (SDGs) proposed by the UN. To this end, a review of the literature was carried out, considering the Brazilian sector, using the following steps: preparation; organization phase; reporting the analysis process and results. Twenty-four companies representing the sector were considered. According to the analysis of their reports, 19 sustainable practices are identified. It was possible to group these practices into four macro areas aligned with the sustainable development of organizations, such as environmental, economic, social, and extensive management practices. Finally, a synthesis of the practices that have been applied in the civil construction sector is presented. Sustainable practices were also aligned with the goals set out in the UN SDGs. activities SDGs (SDGs end steps preparation phase results Twentyfour Twenty considered reports 1 identified organizations environmental economic social Finally presented

Resumo O setor da construção civil é um dos principais consumidores de recursos naturais e apresenta a necessidade de implementação de práticas sustentáveis em suas atividades. Buscou-se apresentar o panorama das práticas de sustentabilidade que vem sendo desenvolvidas pelo setor da construção civil atuantes no Brasil e suas contribuições para o alcance dos Objetivos de Desenvolvimento Sustentáveis (ODSs) propostos pela ONU. Para tal, foi realizada uma revisão da literatura e em seguida um levantamento de empresas que se destacam no setor considerando o cenário brasileiro, utilizando as seguintes etapas: fase de preparação; fase de organização; e fase de relatar o processo de análise e resultados. Foram consideradas 24 empresas representativas do setor. Segundo a análise de seus relatórios, 19 práticas sustentáveis são desenvolvidas. Foi possível agrupar tais práticas em quatro macro áreas alinhadas ao desenvolvimento sustentável das organizações, como por exemplo, práticas ambientais, econômicas, sociais e práticas amplas de gestão. Por fim, apresenta-se uma síntese das práticas que vem sendo aplicadas no setor da construção civil. As práticas sustentáveis também foram alinhadas aos objetivos estabelecidos nos ODSs da ONU. atividades Buscouse Buscou (ODSs ONU tal brasileiro etapas preparação organização resultados 2 relatórios 1 organizações exemplo ambientais econômicas gestão fim apresentase

RESUMEN En el 2024, la mayor parte de la población peruana no cuenta con conductas a favor del cuidado del medioambiente, lo que disminuye la posibilidad de lograr un desarrollo sostenible, el cual se caracteriza principalmente por implementar acciones que contribuyan al uso racional de los recursos naturales y minimizar los efectos de la contaminación, entre otros. El objetivo del estudio fue determinar la influencia de la gestión ambiental regional en la conducta ecológica ciudadana en el departamento de Tacna. Se consideró una muestra de 384 ciudadanos, con edades entre 15 y 64 años que residen en el departamento de Tacna, empleando un muestreo no probabilístico estratificado, distribuidos por provincia, de la siguiente manera: Tacna (357), Jorge Basadre (9), Candarave (10) y Tarata (8). Se utilizó la técnica de la encuesta, a través de la aplicación de dos cuestionarios: gestión ambiental regional (16 ítems) y conducta ecológica ciudadana (24 ítems). Los hallazgos de la presente investigación indican que la conducta ecológica de la población se ve impactada por la implementación de actividades que conforman la gestión ambiental impulsada por el Gobierno Regional de Tacna. Además, cada una de las dimensiones (planes y políticas regionales, sistema regional ambiental, política regional ambiental y comisiones ambientales regionales) tiene influencia sobre la variable conducta ecológica ciudadana.

ABSTRACT In 2024, most of the population does not have behaviors in favor of caring for the environment, which reduces the possibility of achieving sustainable development, which is mainly characterized by implementing actions that contribute to the rational use of natural resources and minimize the effects of pollution, among others. The objective of the study was to determine the influence of regional environmental management on citizen ecological behavior in the department of Tacna. A sample of 384 citizens was considered, aged between 15 and 64 years who reside in the department of Tacna, using a stratified non-probabilistic sampling, distributed by province as follows: Tacna (357), Jorge Basadre (9), Candarave (10) and Tarata (8). The survey technique was used, through the application of two questionnaires: regional environmental management (16 items) and ecological citizen behavior (24 items). The findings of this research indicate that the ecological behavior of populationis impacted by the implementation of activities that make up the environmental management promoted by the Regional Government of Tacna, in addition to each of the dimensions (regional plans and policies, regional system environmental, regional environmental policy and regional environmental commissions) have influence on the variable ecological citizen behavior.

ABSTRACT Social technology is based around three axes: community, environmental protection and economic solidarity. The páramo itself is a vital ecosystem for water regulation as it is the source of water supplies for human consumption and performance of economic activities. This article intends to identify the limitations to apply social technology to the protection of the páramo in the central highlands of Ecuador, where processes of self-management, empowerment, participation, agreement-making, cooperation and pursuit for collective welfare have been observed. The methodology is quantitative within the framework of discourse analysis. The results show that, in order to reach a large agreement for the protection and recovery of the páramo, involving all of the communities settled in the area, it is necessary to overcome limitations mostly related to the lacking attention by the government in regards to basic utilities, management plans for conservation areas and studies for economic alternatives allowing communities to subsist in the lower zones, compromising not to extend their agricultural borders further into the highlands. This information helps strengthen natural resource management from a new perspective.

RESUMEN La tecnología social se fundamenta en tres ejes: la comunidad, el cuidado ambiental y la solidaridad económica. Por su parte, el páramo es un ecosistema vital en la regulación hídrica porque sustenta el suministro de agua para consumo humano y el desarrollo de actividades económicas. Este artículo se centra en identificar las limitaciones para aplicar los fundamentos de la tecnología social en la protección del páramo, ubicado en la Sierra central del Ecuador, lugar donde se observan procesos de autogestión, empoderamiento, participación, logro de acuerdos, cooperación y búsqueda del bienestar colectivo. La metodología es cualitativa, en el marco del análisis del discurso. Los resultados muestran que, para que exista un gran acuerdo de protección y recuperación del páramo, entre todas las comunidades asentadas en esta zona, es necesario vencer limitaciones relacionadas, principalmente, con la falta de atención por parte del gobierno en temas de servicios básicos, planes de manejo para áreas de conservación y estudio de alternativas económicas que permitan a las comunidades subsistir en las zonas bajas y comprometerse a no ampliar la frontera agrícola hacia zonas altas. Esta información contribuye a fortalecer la gestión de recursos naturales desde una nueva perspectiva.

RESUMO A tecnologia social baseia-se em três eixos: a comunidade, o cuidado ambiental e a solidariedade econômica. O páramo é um ecossistema vital para a regulação hídrica pois ele fornece agua para o consumo humano e a realização de atividades económicas. Esse artigo focou-se na identificação das limitações para aplicar os fundamentos da tecnologia social para a proteção do páramo, situado na Sierra central de Equador, sítio onde pode-se observar processos de autogestão, empoeiramento, participação, efetuação de acordos, cooperação e procuração de um bem-estar coletivo. A metodologia é qualitativa, dentro do contexto da análise do discurso. Os resultados mostram que, para ter um acordo grande para a proteção e recuperação do páramo, com todas as comunidades estabelecidas na zona, é necessário vencer limitações relacionadas principalmente à falta de atenção do governo em relação à serviços básicos, planes de gestão de áreas de conservação e estudo de alternativas económicas que permitam que as comunidades possam subsistir nas zonas baixas, e comprometer-se a não estender a fronteira agrícola em direção às zonas altas. Essa informação contribui a fortalecer a gestão de recursos naturais com uma nova perspectiva.

Resumen (Objetivo). Se evaluó el manglar de Chacarita en el Pacífico Central de Costa Rica, a través de la composición florística y las poblaciones de moluscos asociados de interés comercial, con el fin de proponer actividades de aprovechamiento sustentables en el manglar. (Metodología). Mensualmente y durante un año, se realizaron visitas al área de estudio, con el propósito de establecer una base florística de árboles de mangle y medir el almacenamiento de carbono en el lugar, además, de recolectar moluscos bivalvos para analizar el estado de las poblaciones, con base en las abundancias de organismos hallados y otras características como las longitudes y la masa de estos. En los mangles, se obtuvo el diámetro de la altura de pecho (DAP en cm), la altura (m), el índice de valor de importancia (IVI) y las reservas de carbono (Mg C·ha-1). En cuanto a los moluscos, se examinaron cuatro especies de interés comercial, evaluando la longitud (cm), la masa (g) y el índice gonadosomático. Finalmente, se realizaron valoraciones económicas de los datos obtenidos en el manglar, del turismo e información histórica de pesca para el acopio de Chacarita. (Resultados). Se hallaron cinco especies de mangles, Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avicennia germinans y Pelliciera rhizophorae; P. rhizophorae fue la de mayor índice de valor de importancia. Se obtuvo un almacenamiento de carbono equivalente a 78.49 Mg C·ha-1. Se contabilizaron 357 organismos, de los cuales el 18 % correspondió a Anadara similis, 37.5 % a Anadara tuberculosa, 41.46 % a Leukoma spp. y 3.08 % a Mytella guyanensis. Tomando en cuenta el valor económico de las reservas de carbono y los moluscos bivalvos presentes en los muestreos, se obtuvieron valoraciones económicas de 9812.63 USD·ha-1 y 28 USD·ha-1, respectivamente. (Conclusiones). Las bajas densidades poblacionales de moluscos, especialmente del género Anadara, hacen necesario establecer medidas de gestión que permitan recuperar las poblaciones de estos. La presente investigación propone actividades de aprovechamiento sustentables, como turismo comunitario con fines educativos y culturales.

Resumo (Objetivo). O mangue de Chacarita, no Pacífico Central da Costa Rica, foi avaliado por meio da composição florística e das populações de moluscos associados de interesse comercial, com o objetivo de propor atividades de uso sustentável no mangue. (Metodologia). Foram feitas visitas mensais à área de estudo durante um ano para estabelecer uma base florística de árvores do mangue e medir o armazenamento de carbono no local, bem como para coletar moluscos bivalves para analisar o status das populações, com base na abundância de organismos encontrados e em outras características, como comprimento e massa de tais organismos. Nos manguezais, foram obtidos o diâmetro à altura do peito (DAP em cm), a altura (m), o índice de valor de importância (IVI) e as reservas de carbono (Mg C-ha-1). No que diz respeito aos moluscos, foram examinadas quatro espécies de interesse comercial., avaliando o comprimento (cm), a massa (g) e o índice gonadossomático. Por fim, foram feitas avaliações econômicas de dados de mangue, turismo e informações históricas de pesca para a coleção Chacarita. (Resultados). Foram encontradas cinco espécies de mangue, Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avicennia germinans e Pelliciera rhizophorae; a P. rhizophorae apresentou o índice de valor de importância mais alto. Foi obtido um armazenamento de carbono equivalente a 78.49 Mg C-ha-1. Foram calculados um total de 357 organismos, dos quais 18% correspondeu a Anadara similis, 37.5% Anadara tuberculosa, 41.46% Leukoma spp. e 3.08% Mytella guyanensis. Levando em conta o valor econômico das reservas de carbono e dos moluscos bivalves presentes nas amostras, foram obtidas avaliações econômicas de US$ 9812.63 ha-1 e US$ 28 ha-1, respectivamente. (Conclusões). As baixas densidades populacionais de moluscos, especialmente do gênero Anadara tornam necessário o estabelecimento de medidas de manejo para permitir a recuperação dessas populações. Esta pesquisa propõe atividades de uso sustentável, como o turismo comunitário para fins educacionais e culturais.

Abstract (Objective). The floristic composition and populations of associated molluscs of commercial interest of the Chacarita mangrove forest on the Central Pacific of Costa Rica were evaluated to guide proposals for sustainable exploitation activities in the mangrove forest. (Methodology). Monthly visits to the study area were conducted for one year to establish a floristic baseline of mangrove trees and measure carbon storage. Additionally, bivalve molluscs were collected to analyze the state of their populations based on the abundances of organisms found, as well as other characteristics such as length and mass. Data regarding the mangrove trees included their diameter at breast height (DBH, cm), height (m), importance value index (IVI), and carbon reserves (Mg C·ha-1). Four mollusc species of commercial interest were analyzed, using data on their length (cm), weight (g), and gonodosomatic index. Economic evaluations were also conducted using data obtained from the mangrove forest, as well as tourism and historical fishing data for the collection of Chacarita. (Results). Five species of mangroves were identified: Rhizophora mangle, Rizophora racemosa, Laguncularia racemosa, Avice germinans, and Pelliciera rhizophorae, while P. rhizophorae had the highest importance value index. The study revealed a carbon storage equivalent to 78.49 Mg C·ha-1. A total of 357 organisms were counted, with Anadara similis accounting for 18% of the total count, followed by Anadara tuberculosa (37.5%), Leukoma spp. (41.46%), and Mytella guyanensis (3.08%). When considering the economic value of carbon stocks and the bivalve molluscs obtained from the samples, economic valuations of 9,812.63 USD·ha-1 and 28 USD·ha-1 were determined, respectively. (Conclusions). The low population densities of molluscs, particularly those belonging to the Anadara genus, necessitate the establishment of management measures to facilitate the recovery of these mollusk populations. This research proposes sustainable use activities such as community tourism for educational and cultural purposes.

Abstract Introduction: Extensive cattle ranching in tropical dry forest areas (TDF) has caused the transformation of natural ecosystems and has altered the behavior of associated organisms, generating variation in activity patterns. In bats, the activity pattern is affected by the composition and vegetation structure of the ecosystem, and by the climatic season (dry and rainy). Therefore, it is expected that conventional extensive livestock systems, as opposed to silvopastoral systems where environmental heterogeneity is favored, determine the activity of bats. Objective: To compare the activity patterns of bats in conventional management systems (CS) and silvopastoral (SPS) of extensive cattle ranching associated with TDF in the Colombian Caribbean. Methods: The activity pattern of bats in TDF fragments associated with conventional and silvopastoral systems was compared within an annual cycle. The daily activity patterns of 11 species with records for over 10 days in both livestock management systems were determined. Results: A total of 2 788 bats were captured, from six families, 22 genera, and 37 species. Greater bat activity was recorded during the rainy season. We found that although bats show behavioral adaptation to the different management systems (except for Carollia perspicillata, Dermanura phaeotis and Glossophaga soricina), in TDF fragments associated with SPS there is greater bat activity throughout the year, compared to the activity recorded in CS. Likewise, the only nectarivorous species evaluated, G. soricina, also presented the lowest overlap value between the two types of management SC and SSP. Conclusion: The TDF fragments associated with SPS, due to the vegetation composition and structure, probably favor the constant supply of resources suitable for the bats’ assemblage stability, especially flowers and fruits.

Resumen Introducción: La ganadería extensiva en áreas de bosque seco tropical (bs-T) ha causado la transformación de los ecosistemas naturales, y ha alterado la conducta de los organismos asociados, generando variación en los patrones de actividad. En murciélagos, el patrón conductual se ve afectado por la composición y estructura vegetal del ecosistema, y por la época climática (seca y lluviosa). Por lo que, se espera que en los sistemas convencionales de ganadería extensiva a diferencia de los silvopastoriles donde se favorece la heterogeneidad ambiental, determine la actividad de los murciélagos. Objetivo: Comparar los patrones de actividad de los murciélagos en sistemas de manejo convencional (SC) y silvopastoril (SSP) de ganadería extensiva asociados al bs-T en el Caribe colombiano. Métodos: Se comparó el patrón de actividad de los murciélagos en fragmentos de bs-T asociados a SC y SSP durante un ciclo anual. Se determinó el patrón de actividad diaria de 11 especies con registros mayores a 10 días en ambos sistemas de manejo de ganadería. Resultados: Un total de 2788 murciélagos fueron capturados, de seis familias, 22 géneros y 37 especies. Se registró mayor actividad de murciélagos durante la época de lluvias. Encontramos que a pesar de que los murciélagos presentan adaptación del comportamiento a los diferentes sistemas de manejo (excepto Carollia perspicillata, Dermanura phaeotis y Glossophaga soricina), en fragmentos de bs-T asociados a SSP se presenta mayor actividad de los murciélagos durante todo el año, con respecto a la actividad registrada en los SC. Igualmente, la única especie nectarívora evaluada, G. soricina, presentó también el menor valor de solapamiento entre los dos tipos de manejo SC y SSP. Conclusión: Los fragmentos de bs-T inmersos en SSP debido a la estructura del paisaje, podrían estar favoreciendo la oferta constante de recursos adecuados para la estabilidad del ensamblaje de murciélagos, en especial flores y frutos.

Abstract: A central debate in contemporary Latin American social sciences revolves around the enduring presence of colonial patterns, practices, and forms of domination in research methodologies and the subjective framing of societal issues. However, decolonizing initiatives are emerging, concurrently, to challenge the ways coloniality has been entwined with the expansion of capital in the 21st century. This introductory article explores the key debates surrounding colonial persistence and decolonization within the social sciences. The dossier employs a methodology centered on documentary analysis and participatory social and political reflection, particularly through experimental approaches. The articles reviewed reveal that colonial persistence and decolonization are inherently dialectical, contradictory, and conflict-ridden, manifesting across diverse social, cultural, economic, and political domains. The uniqueness of this thematic issue lies in its ability to weave together a theoretical and conceptual discourse on symbolic and imaginary aspects within culture, spanning anthropological, legal, and educational dimensions. The analysis underscores that these issues are pluralistic and deeply intertwined with struggles over land and natural resources, enriching interdisciplinary understanding of the complex dialectical relationships between social, anthropological, economic, and political factors, alongside the aesthetics of cultural practices.

Resumo: Atualmente, um dos principais debates nas ciências sociais da América Latina refere-se ao fato de que ainda existem padrões, práticas e componentes da dominação colonial nas formas de fazer pesquisa e de pensar subjetivamente sobre problemas e sujeitos nas sociedades. Contudo, há também tentativas descolonizadoras que questionam as maneiras pelas quais a colonialidade tem sido articulada com a expansão do capital no século 21. Portanto, o objetivo deste artigo introdutório é abordar os debates centrais sobre a persistência colonial e a descolonização nas ciências sociais. Este dossiê é conduzido por meio do uso de uma metodologia centrada na análise documental e em reflexões sociais e políticas participativas na experimentação. A revisão dos artigos levou à conclusão de que a persistência colonial e a descolonização são dialéticas, contraditórias e conflitantes; elas se expressam nas várias esferas sociais, culturais, econômicas e políticas dos territórios. Portanto, a originalidade deste número temático está no fato de que ele consegue reunir uma discussão teórica e conceitual sobre questões simbólicas do imaginário na cultura, tanto antropológicas quanto jurídicas e educacionais. Fica claro que, nas lutas pela terra e pelos recursos naturais, esses problemas existem, são plurais e permitem o enriquecimento de um conhecimento interdisciplinar sobre as relações dialéticas sociais, antropológicas, econômicas e políticas com aspectos das artes do fazer estético nas culturas.

Resumen: En la actualidad, uno de los debates principales en las ciencias sociales que se desarrollan en América Latina es que todavía existen patrones, prácticas y componentes de dominación colonial en las formas de hacer investigaciones y pensar subjetivamente los problemas y sujetos en las sociedades. Pero, también, hay intentos descolonizadores que cuestionan las maneras en que la colonialidad se ha articulado con la expansión del capital en el siglo XXI. Por lo tanto, el objetivo de este artículo introductorio es realizar un acercamiento a los debates centrales de la persistencia colonial y la descolonización en las ciencias sociales. Este dosier se aborda mediante el uso de una metodología centrada en el análisis documental y reflexiones sociales y políticas participativas en la experimentación. La revisión de los artículos llevó a concluir que la persistencia colonial y la descolonización son dialécticas, contradictorias y conflictivas; se expresan en los diversos ámbitos sociales, culturales, económicos y políticos en los territorios. Por lo tanto, la originalidad de este número temático reside en que se logra conjuntar una discusión teórica y conceptual sobre problemáticas simbólicas de lo imaginario en la cultura, tanto antropológicas como jurídicas y educativas. Queda claro que en las luchas por la tierra y los recursos naturales estas problemáticas existen, son plurales y permiten enriquecer un conocimiento interdisciplinario sobre relaciones dialécticas sociales antropológicas, económicas y políticas con aspectos de artes del hacer estético en las culturas.

Abstract The management of lithic resources is a central activity in the reproduction of social life in many past societies. In the context of these operations, individuals and groups developed actions, values and attitudes based on their technological habits, cultural patterns and symbolic representations, closely linked to the landscape they inhabited and its natural resources. The aim of this paper is to approach the social practices related to rock procurement and the social landscapes, that make up indigenous quarries. To achieve this, we first conducted a bibliographic review of different ethnoarchaeological cases that document different activities and practices related to rock procurement. Then, concerning some of these data, we analyzed the archaeological landscapes and the material record of two quarry areas located in the center-East of Tandilia hills (Buenos Aires, Argentina) and Antofagasta de la Sierra (Catamarca, Argentina).

Resumen La gestión de los recursos líticos es una actividad central en la reproducción de la vida de muchas sociedades pasadas. En el marco de estas operaciones, los individuos y grupos desarrollaron acciones, valoraciones y actitudes enraizadas en sus hábitos tecnológicos, sus patrones culturales y sus representaciones simbólicas, que se encuentran estrechamente ligadas al paisaje que habitaron y sus bienes naturales. El objetivo de este trabajo es abordar las prácticas sociales relacionadas con la obtención de rocas y los paisajes culturalmente construidos que conforman las canteras prehispánicas. Para ello se efectúa un recorrido bibliográfico sobre diferentes casos etnoarqueológicos que documentan actividades y prácticas diversas en torno al aprovisionamiento. Luego, a la luz de algunos de esos datos, se analizan los paisajes arqueológicos y el registro material de dos áreas de canteras localizadas en el centro-este de las Sierras de Tandilia (Buenos Aires, Argentina) y Antofagasta de la Sierra (Catamarca, Argentina).

ABSTRACT This paper proposes a composite indicator to identify levels of water security at the household-community interface. It analyses the hydro-social processes that give rise to water scarcity situations experienced by the rural population supplied by community organizations in rural Chile. The indicator is based on a case study of ten community organizations selected to represent the heterogeneity existing in the country, where semi-structured interviews with their leaders and field observations were applied. Two main findings emerge from the study: 1) there is no correlation between the size of organizations and the levels of observed water security; 2) cases with greater difficulty accessing sufficient resources are not the ones facing greater water insecurity, as organizations compensate for this difficulty with other components.

RESUMEN El presente artículo propone un indicador compuesto que permite identificar niveles de seguridad hídrica en la interfaz doméstica-comunitaria. Para ello analiza los procesos hidrosociales que dan origen a situaciones de escasez hídrica vividas por la población rural abastecida mediante organizaciones comunitarias en Chile rural. El indicador se basa en el estudio de caso de diez organizaciones comunitarias seleccionadas para representar la heterogeneidad existente en el país, a cuyos dirigentes se les aplicó entrevistas semiestructuradas en las cuales se realizaron, además, observaciones de campo. Del estudio se desprenden dos principales hallazgos: 1) No existe una correlación entre el tamaño de las organizaciones y los niveles de seguridad hídrica observados; 2) Los casos con mayores dificultades para acceder a recursos en cantidad suficiente no son los que enfrentan una inseguridad hídrica mayor, puesto que las organizaciones compensan esta dificultad con otros componentes.

Heelwat navorsing is al gedoen in 'n poging om 'n greep op aspekte van goeie en slegte plaaslike regering te kry. 'n Kernvraag wat steeds onbeantwoord bly is die volgende: Wat is "plaaslike regering", en hoe kan die werklikheid waarna die begrip verwys, verstaan en herken word? 'n Begripsraamwerk van "plaaslike regering" is onlangs ontwikkel bestaande uit die herkenbare eienskappe van die begrip om dit te identifiseer. Gepaardgaande daarmee is 'n sosiale ontologie van sorg vir "plaaslike regering" ontwikkel. Die veronderstelling is dat plaaslike regerings in Suid-Afrika en ander lande aan die hand van daardie eienskappe herken sal word. Binne die Suid-Afrikaanse konteks is daar egter 'n moontlike nietipiese voorbeeld van plaaslike regering, naamlik Orania, 'n bestaande dorp binne die geografiese gebied van die Thembelihle Plaaslike Munisipaliteit in die Noord-Kaapprovinsie. Orania is nie 'n muni-sipaliteit ingevolge die Suid-Afrikaanse grondwet en wetlike raamwerk nie. Die vraag is gevolglik of Orania wel as 'n "plaaslike regering" beskou kan word. In antwoord op die vraag gee hierdie artikel 'n ontiese¹ beskrywing van Orania aan die hand van die gekose begripsraamwerk en sosiale ontologie van sorg. Dit blyk uit die beskrywing en ontleding daarvan dat Orania wel aan die institusionele, funksionele en territoriale eienskappe van die begrip "plaaslike regering" voldoen en op 'n outentieke wyse as plaaslike regering funksioneer. Die gevallestudie wys dat 'n outentieke plaaslike regering een is wat 'n integrerende deel uitmaak van sy plaaslike gemeenskap en omsluitende wêrelde, wat voortdurende ongemak met die hede beleef en met sorg, besorgdheid en sorgsaamheid daarop reageer.

Much research has been conducted to grasp aspects of good and bad local governance. A central question that remains unanswered is: What constitutes "local government" and how can the reality to which this concept refers be understood and recognised? Recently, a conceptual framework was developed by identifying recognisable characteristics of this concept's reference. The assumption is that local governments in South Africa and other countries will be recognised based on these characteristics. Alongside this, a social ontology of care for "local government" was established. However, within the South African context, a potentially atypical example of local government is found, namely Orania, an existing town situated within the geographical area of the Thembelihle Local Municipality in the Northern Cape province. Orania is not a municipality in terms of the South African constitution and legal framework. The question thus arises whether Orania can indeed be considered a "local government". In response to this query, this article provides a description of Orania using the chosen conceptual framework and social ontology of care as part of a case study design. The analysis and ontological description ofOrania, by means of the conceptual framework, reveal that the phenomenon of Orania does indeed possess a territorial jurisdictional sphere (the Orania Overlay Zone), a democratically elected representative council (the OVR), and a Town Council and its administration that performs a range of local functions and responsibilities. While the territory of a municipality is generally determined by authorising measures or decisions by other jurisdictions (such as province, state, and national government), the territorial area known as the Orania Overlay Zone results from the purchase and cultivation of land by members of a homogeneous cultural community. Therefore, the territory is not only a demarcation of jurisdiction, but the place to which this community is connected. The institutional aspect of local government is likely a universal feature. The nature and scope of the institutional structure of local governments are often also the result of standardised external authorising measures or decisions by other jurisdictions. Consequently, the structures may not necessarily resonate with the needs and resources of the sometimes diverse society that constitutes the inhabitants of such an area. In the case of Orania, the institutional structure of local government (the OVR and the Town Council) is directly determined by the community, as represented by various land entities, based on the community's specific needs and available resources. The performance of a limited range of local functions can also be considered a universal feature of local government. In this particular case, the functions of the relevant local government are determined by its decision-making bodies, such as the Town Council, in consultation with the community as represented by the various land entities. Consequently, typical local government functions are performed according to the community's needs and available resources. Non-typical local government functions, such as residence rights, are performed within the general scope of the 1996 Constitution of the Republic of South Africa and other national legislation. The analysis confirmed that Orania meets the characteristics consistent with the concept of "local government" as outlined in the conceptual framework. Additionally, viewing Orania through the theoretical lens of social ontology of care highlights that it is a human construct, making objective observation and description challenging. Orania is a network of interconnected individuals and social institutions situated within overlapping human, spiritual, natural, territorial, and political worlds. The authenticity of this existence lies in its concern for the affairs of the world in which it is situated and the conscientiousness with which it carries out its functions in conjunction with others. The case study shows that an authentic local government is one that forms an integral part of its local community and surrounding worlds, continually experiencing discomfort (anxiety) with the present, and responding to that anxiety with care, concern, and nurturing for society and its things.

ABSTRACT This work determined the ecological footprint of the National Center for Applied Electromagnetism, a science institution attached at the Universidad de Oriente, Santiago de Cuba. The categories analyzed to carry out the calculations of CO2 emissions and the ecological footprint were: Water, Built surface, Electricity Consumption, Mobility, Paper, Non-hazardous solid waste, Hazardous waste, Food, Services and Production of Magnetic Conditioners. The methodology of Doménech (2009) and the methodology for calculating the ecological footprint in universities of López Álvarez et al. (2009) of the Sustainable Development Office, University of Santiago de Compostela were used as a basis. The results obtained for the year 2022 reflect that the National Center for Applied Electromagnetism needs an area of 52,984 ha/year of forest to regenerate the natural resources that the center uses for the satisfaction of it social demand. Similarly, it requires 89,096 hag standard forest to assimilate CO2 emissions.

RESUMEN El presente trabajo desarrolló el cálculo de la huella ecológica del Centro Nacional de Electromagnetismo Aplicado, entidad de ciencia adscrita a la Universidad de Oriente, Santiago de Cuba. Las categorías analizadas para realizar los cálculos de las emisiones de CO2 y de la huella ecológica fueron: Agua, Superficie construida, Consumo de Electricidad, Movilidad, Papel, Residuos sólidos no peligrosos, Residuos peligrosos, Alimentos, Servicios y Producción de Acondicionadores Magnéticos. Se utilizó como base la metodología de Doménech (2009) y la metodología para el cálculo de la huella ecológica en universidades de López Álvarez y colaboradores (2009) de la Oficina de Desarrollo Sostenible, Universidad de Santiago de Compostela. Los resultados obtenidos para el año 2022 reflejan que el Centro Nacional de Electromagnetismo Aplicado necesita un área de bosques de 52,984 ha/año para regenerar los recursos naturales que se demandan por el centro para satisfacer su objeto social. Asimismo, requiere de 89,096 hag de bosque estándar mundial para asimilar las emisiones de CO2 generadas.

Resumen Este artículo analiza cómo la teoría geopolítica expuesta por Halford Mackinder se ve amenazada por las previsiones del deshielo del Ártico, en el mediano plazo, y cómo estas predicciones transforman el marco estratégico de los países que conforman el territorio, en especial, de la Federación Rusa. Este cambio, que supone el final del Heartland, deja a Rusia en una situación privilegiada por su cercanía y control de las rutas comerciales y los recursos naturales, pero compone también un escenario nuevo en el que la pasada invulnerabilidad marítima queda abierta a experiencias, hasta ahora, desconocidas. Al centrarse en un análisis entre la teoría de Mackinder y la situación actual del Ártico, el artículo trata de dar respuesta a la importancia del Polo Norte, dada su posición geográfica y su naturaleza de mar helado, y a en qué medida puede suponer este una alteración de los equilibrios de poder en el orden regional y global.

Resumo Este artigo analisa a forma como a teoria geopolítica de Halford Mackinder é ameaçada pelas previsões de degelo do Ártico a médio prazo e transforma o quadro estratégico dos países que compõem o território, nomeadamente a Federação Russa. Esta mudança, que marca o fim do Heartland, deixa a Rússia numa situação privilegiada pela sua proximidade e controlo das rotas comerciais e dos recursos naturais, mas cria também um novo cenário em que a invulnerabilidade marítima do passado se abre a experiências até então desconhecidas. Através de uma análise comparativa entre a teoria de Halford Mackinder e a situação atual do Ártico, procuramos responder à questão da importância do Pólo Norte, dada a sua posição geográfica e a natureza do gelo marinho, e em que medida pode alterar os equilíbrios de poder na ordem regional e global.

Abstract This article analyses how the geopolitical theory set out by Halford Mackinder is threatened by forecasts of Arctic ice melt in the medium term and transforms the strategic framework of the countries that make up the territory, especially the Russian Federation. This change, which marks the end of the Heartland, leaves Russia in a privileged situation due to its proximity to and control of trade routes and natural resources, but also creates a new scenario in which past maritime invulnerability is open to hitherto unknown experiences. Focusing on a comparative analysis between Halford Mackinder's theory and the current situation of the Arctic, the article tries to find answers to the the importance of the North Pole, given its geographical position and sea ice nature, and to the extent to which it may entail an alteration of the balance of power in the regional and global order.

ABSTRACT The studies carried out demonstrate the potential and shortcomings in the development of capabilities in this sense. The work is part of the project Professional training for educational and sociocultural actors and agencies in regional and local historical studies for sustainable development in the central region of Cuba. The actions are carried out from an innovative, interdisciplinary and professional approach that allows the analysis of the natural, social and historical reality in relation to good practices of employment, conservation and protection of heritage resources for the enhancement. Links are produced between the results of regional and local historical studies with local development, based on the interrelation between university and society. It includes the development of social innovation products resulting from the theoretical, methodological, didactic and practical contributions on regional and local historical studies produced by the Department of History of the University of Cienfuegos that favor management in the sustainable development of localities and communities of the central region of Cuba.

RESUMEN Los estudios realizados demuestran las potencialidades y carencias en el desarrollo de capacidades en este sentido. El trabajo forma parte del proyecto Formación profesional a los actores y agencias educativas y socioculturales en estudios históricos regionales y locales para el desarrollo sostenible en la región central de Cuba. Las acciones se realizan desde un enfoque innovador, interdisciplinario y profesionalizadoque permite el análisis de la realidad natural, social e históricaen relación a las buenas prácticas de empleo, conservación y protección de los recursos patrimonialespara la puesta en valor. Se producen articulaciones entre los resultados de los estudios históricos regionales y locales con el desarrollo local, a partir de la interrelación entre universidad y sociedad. Se incluye la elaboración de productos de innovación social resultantes de los aportes teóricos, metodológicos, didácticos y prácticos sobre los estudios históricos regionales y locales producidos por el departamento de Historia de la Universidad de Cienfuegos que favorecen la gestión en el desarrollo sostenible de las localidades y comunidades de la región central de Cuba.

Abstract A comparison is established between the traditional design of the linear economy and that of a circular economy through the proposal of heuristic dynamic models based on non-linear systems of ordinary differential equations. It was found that, for critical values of the control parameter, natural resources, through an Andronov-Hopf bifurcation, the circular economy model self-organizes out of thermodynamic equilibrium, and exhibits high complexity, robustness, resilience and adaptability, which was verified by evaluating the Shannon entropy of their trajectories. Finally, it was shown, through an ansatz, that the circular economy model shows greater efficiency compared to the traditional linear model.

Resumen Se establece una comparación entre el diseño tradicional de la economía lineal y el de una economía circular a través de la propuesta de modelos dinámicos heurísticos basados en sistemas no lineales de ecuaciones diferenciales ordinarias. Se encontró que, para valores críticos del parámetro de control, los recursos naturales, a través de una bifurcación de Andronov-Hopf, el modelo de economía circular se autorganiza fuera del equilibrio termodinámico, y exhibe una alta complejidad, robustez, resiliencia y adaptabilidad, lo cual se verificó a través de evaluar la entropía de Shannon de sus trayectorias. Finalmente, se mostró por medio de un ansatz, que el modelo de economía circular muestra una mayor eficiencia en comparación con el modelo tradicional lineal.

RESUMEN El establecimiento de nuevas Áreas Protegidas (AP) representa un paso inicial crucial para contrarrestar la pérdida y fragmentación de hábitats naturales, con el fin de conservar ecosistemas de vital importancia para la biodiversidad y preservar las culturas tradicionales. La gestión efectiva de una AP puede generar beneficios significativos tanto para la diversidad biológica que la habita como para la sociedad en general, asegurando la continuidad de los ecosistemas productivos. Este estudio se propone describir de manera exhaustiva las políticas nacionales relacionadas con las AP en Ecuador y las estrategias clave para la conservación de la biodiversidad. Se llevó a cabo una revisión bibliográfica de enfoque descriptivo, cualitativo y exploratorio, que incluyó la consulta de artículos científicos, libros, informes técnicos y documentos gubernamentales pertinentes. Los resultados resaltan el papel fundamental de las AP como refugios esenciales para la vida silvestre, así como su función protectora ante los efectos del cambio climático, permitiendo la evolución de la diversidad genética en respuesta a las presiones de la selección natural. Las principales amenazas a la biodiversidad comprenden cambios en el uso de la tierra debido a la agricultura y la urbanización, la propagación de especies invasoras, la explotación excesiva de recursos y la contaminación ambiental.

ABSTRACT The establishment of new Protected Areas (PAs) represents a crucial initial step to counteract the loss and fragmentation of natural habitats, in order to conserve ecosystems of vital importance for biodiversity and preserve traditional cultures. The effective management of a PA can generate significant benefits for both the biological diversity that inhabits it and for society in general, ensuring the continuity of productive ecosystems. This study aims to comprehensively describe national policies related to PAs in Ecuador and key strategies for biodiversity conservation. A descriptive, qualitative and exploratory literature review was carried out, including consultation of scientific articles, books, technical reports and relevant government documents. The results highlight the fundamental role of PAs as essential refuges for wildlife, as well as their protective function in the face of the effects of climate change, allowing the evolution of genetic diversity in response to the pressures of natural selection. The main threats to biodiversity include changes in land use due to agriculture and urbanization, the spread of invasive species, overexploitation of resources, and environmental pollution.