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 Langerhans cell histiocytosis comprises a heterogeneous range of clinical manifestations secondary to clonal proliferation of histiocytes, characterized by the accumulation of these cells in various organs and tissues. The ophthalmological component commonly involved is the orbit. Herein, we report a rare case of Langerhans cell histiocytosis with eyelid involvement, which resulted in severe ocular surface complications, which subsequently significantly impacted the patient’s quality of life. This case report highlights the fact that despite being rare, Langerhans cell histiocytosis should be included in the differential diagnosis of eyelid lesions. Furthermore, a multidisciplinary approach with a systemic overview is crucial for managing the ocular complications. histiocytes tissues orbit Herein involvement complications patients patient s life lesions Furthermore

Abstract This article analyzes how different activisms in Chile feminists, LGTBIQ+, antihegemonic masculinities, and groups opposing sexual and reproductive rights contested the gender order during the country’s constituent process, which unfolded between 2020 and 2023. In particular, we explore the way in which anti-abortion groups mobilized, showing that they not only oppose the interruption of pregnancy, but they also try to re-signify gender as a social construct. From the logic of methodological assemblage, we combined the observation of street demonstrations and digital ethnography through a series of interviews with cyber-activists of “pro-life” organizations. From the analysis conducted on the practices and discourses of these groups, three types of political operations have been identified: a redefinition of the framework of rights at stake when debating abortion; a broadening of the affected subject otherwise restricted to the fetus; and a resignification of feminism. These findings allow us to conclude that such activisms do not represent “anti-gender” positions but rather correspond to a neoconservative gender countermovement.

Resumen En el presente artículo se analiza la forma en que los diferentes activismos en Chile feministas, LGTBIQ+, masculinidades antihegemónicas y grupos que se oponen a los derechos sexuales y reproductivos disputaron el orden de género durante el proceso constituyente del país, desarrollado entre 2020 y 2023. En particular, se explora el modo en que los grupos antiabortistas se movilizaron con el fin de comprender que no solo se oponen a la interrupción del embarazo, sino que tratan de resignificar el género como constructo social. Desde la lógica del ensamblaje metodológico, se combinó la observación de manifestaciones callejeras y la etnografía digital, a través de una serie de entrevistas a ciberactivistas de organizaciones “provida”. A partir del análisis realizado sobre las prácticas y discursos de estos grupos, se han identificado tres tipos de operaciones políticas: una redefinición del marco de los derechos en juego al debatir sobre el aborto; una ampliación del sujeto afectado restringido al feto; y una resignificación del feminismo. Estos hallazgos permiten concluir que tales activismos, más que a posiciones “antigénero”, corresponden a un contramovimiento neoconservador de género.

Resumen El artículo se centra en las construcciones subjetivas que las personas (transmigrantes) desarrollan en la ciudad de Tapachula, Chiapas, en su tránsito hacia Estados Unidos. Se realiza un análisis de contenido cualitativo a partir de entrevistas semiestructuradas a profundidad para comprender las formas en que los individuos se relacionan con las estructuras sociales e intentan subvertirlas o transformarlas por medio de estrategias que les permiten sobrellevar la situación de espera. La inmovilidad dentro de la movilidad humana y cómo en ella se tejen nuevas subjetividades representa el rasgo de originalidad de este artículo. Se concluye que la marginación estructural a la que son sometidas las personas transmigrantes puede superarse por medio de acciones que, a pesar de su apariencia inocua, cuentan con un potencial simbólico considerable para desestabilizar los discursos hegemónicos que establecen una separación entre formas de existir, concepciones y maneras de proceder en el mundo.

Abstract This text focuses on the subjective constructions that people (transmigrants) develop in the city of Tapachula, Chiapas on their way to the United States. A qualitative content analysis is carried out based on in-depth semi-structured interviews to understand the ways in which individuals relate to social structures and try to subvert or transform them through strategies that allow them to cope with the waiting situation. Standby. Immobility within human mobility and how new subjectivities are woven into it represents the trait of originality of this article. It is concluded that the structural marginalization to which transmigrants are endured can be overcome through actions that, despite their innocuous appearance, have considerable symbolic potential to destabilize hegemonic discourses that strengthen a separation between ways of existing, conceptions and ways of proceeding in the world.

Resumen: Introducción: La pérdida de un ser querido se construye como una experiencia humana inevitable, que genera una vivencia emocional que impacta tanto al individuo que experimenta la pérdida como a su entorno. Objetivo: Investigar la relación entre los procesos de duelo anticipado y las alteraciones en la participación ocupacional de quienes fueron cuidadoras principales informales de personas con enfermedad terminal en la Región Metropolitana de Chile. Método: Enfoque cualitativo con 7 entrevistas semiestructuradas individuales a cuidadoras adultas en el sur y poniente de la región. Resultados: Fueron categorizadas experiencias y subjetividades que expresan la importancia que las mujeres atribuyen al cuidado de sus familiares, con una escasa demostración emocional durante esta etapa. Además, emergen categorías como rutinas y roles, donde muchas mujeres priorizan el cuidado; redes de apoyo, con relatos frecuentes sobre la falta de ayuda y herramientas más allá de lo económico; y áreas de ocupación afectadas, predominantemente el descanso y sueño, aunque también se menciona el autocuidado y la participación social. Conclusión: Si bien el proceso de duelo anticipado genera dolor y desgaste propio, es el cuidado informal lo que genera cambios en la participación y calidad de vida de las mujeres cuidadoras.

Resumo: Introdução: A perda de um ente querido é construída como uma experiência humana inevitável, que gera uma vivência emocional que afeta tanto o indivíduo que experimenta a perda quanto seu entorno. Objetivo: investigar a relação entre os processos de luto antecipado e as alterações na participação ocupacional daquelas que foram cuidadoras primárias informais de pessoas com doença terminal na Região Metropolitana do Chile. Método: abordagem qualitativa com 7 entrevistas individuais semiestruturadas com cuidadoras adultas no sul e oeste da região. Resultados: Foram categorizadas experiências e subjetividades que expressam a importância que as mulheres atribuem ao cuidado de seus familiares, com uma escassa demonstração emocional durante essa etapa. Além disso, surgem categorias como rotinas e papéis, em que muitas mulheres priorizam o cuidado; redes de apoio, com relatos frequentes sobre a falta de ajuda e ferramentas além das econômicas; e áreas de ocupação afetadas, predominantemente o descanso e o sono, embora o autocuidado e a participação social também sejam mencionados. Conclusão: Embora o processo de luto antecipado gere dor e desgaste próprio, é o cuidado informal que gera mudanças na participação e na qualidade de vida das mulheres cuidadoras.

Abstract: Introduction: The loss of a loved one is constructed as an inevitable human experience, which generates an emotional experience that impacts both the individual experiencing the loss and his or her environment. Objective: To investigate the relationship between anticipated grief processes and alterations in the occupational participation of informal primary caregivers of terminally ill persons in the Metropolitan Region of Chile. Method: Qualitative approach with 7 individual semi-structured interviews with adult caregivers in the south and west of the region. Results: Experiences and subjectivities were categorized that express the importance that women attribute to the care of their relatives, with little emotional demonstration during this stage. In addition, categories such as routines and roles emerge, where many women prioritize caregiving; support networks, with frequent reports on the lack of help and tools beyond the economic; and areas of occupation affected, predominantly rest and sleep, although self-care and social participation are also mentioned. Conclusion: Although the process of anticipatory grief generates pain and self-exhaustion, it is informal caregiving that generates changes in the participation and quality of life of women caregivers.

ABSTRACT Objective: To describe the evidence of Platelet Rich Plasma (PRP), Stem cells therapy (SCT) and Extracorporeal shockwave therapy (ESWL) for the treatment of Peyronies disease (PD), including information from the main urological society guidelines. Materials and Methods: A literature review of PubMed articles published between 2000 and 2023 was conducted, utilizing keywords such as "Peyronie's Disease", "Penile curvature", "Platelet Rich Plasma", "Stem cells", and "Extracorporeal shockwave therapy". Only full-text articles in English were included, excluding case reports and opinions. Results: A considerable number of clinical trials were conducted using PRP penile injections for therapy of PD, showing reduction of curvature, plaque size and improvement in quality of life. Preclinical studies in rats have shown the potential benefit of adipose-derived stem cells, with improvements in erectile function and fibrosis. Human studies with mesenchymal stem cells demonstrated promising results, with reduction of curvature and plaque size. ESWL effects on PD were investigated in randomized clinical trials and demonstrated no significant impact in curvature or plaque size, but reasonable effect on pain control. Conclusion: Restorative therapies has emerged as an innovative treatment option for PD and the results from current studies appear to be promising and demonstrated good safety profile. Unfortunately, due to scarce evidence, PRP and SCT are still considered experimental by American Urological Association (AUA) and European Association of Urology (EAU) guidelines. ESWT is recommended, by the same guidelines, for pain control only. More high-quality studies with long-term follow-up outcomes are needed to evaluate efficacy and reproducibility of those therapies. Objective PRP, , (PRP) (SCT (ESWL (PD) guidelines Methods 200 202 Peyronie s Disease, Disease Disease" Penile curvature" Plasma, Plasma" cells" therapy. . therapy" fulltext full text included opinions Results life adiposederived adipose derived fibrosis Conclusion profile Unfortunately AUA (AUA EAU (EAU recommended only highquality high longterm long term followup follow up (PRP (PD 20 2

Resumen El objetivo de este artículo es subrayar las condiciones que impactan directamente a la población migrante en contextos sociohistóricos concretos en las fronteras Colombia-Venezuela y México- Centroamérica, donde se profundiza una situación precaria agravada por la violencia asociada a problemas de orden político. Dichas condiciones de deterioro precipitan la decisión de migrar y han convertido a la movilidad en la única estrategia para preservar la vida. Al examinar las circunstancias particulares, se evidencia que los cambios en las dinámicas transfronterizas están emparentados con una acción estatal que privilegia el control fronterizo y que la persistente precarización de la población en tránsito es acentuada por el accionar criminal. Así mismo, las respuestas sociales oscilan entre la asistencia y la protección de la población migrante, y la hostilidad que acompaña la estigmatización. migración transfronteriza, violencia y derechos humanos, acción estatal, México-Centroamérica, Colombia-Venezuela

Abstract This article aims to highlight the conditions directly impacting the migrant population in specific sociohistorical contexts on the Colombia-Venezuela and Mexico-Central America borders. Here, a precarious situation worsens, aggravated by violence. These are conditions associated with problems of a political order, which highlight the role of persistent violence in the deterioration of a dignified life, precipitating the decision to migrate and turning mobility into the only strategy to preserve life. An examination of the particular circumstances shows that the changes in cross-border dynamics are related to state actions that favor border control, a persistent precariousness of the population in transit deepened by criminal activities and some social responses that oscillate between assistance and protection of the migrant population, alongside the hostility that accompanies stigmatization.

Abstract In recent years, digital transformation processes have been gaining relevance. However, not all companies are achieving the same degree of transformation. The presence of barriers and enablers plays a significant role in this process. Furthermore, the extent of digital transformation also impacts how human resources (HR) policies are deployed and influences the effect they have on employees. This work aims to understand how the digital transformation process is occurring from a qualitative approach. Specifically, this study analyzes the main drivers and barriers of firms' digitalization, as well as its effects on companies, people, and human resource practices. Eight semi-structured interviews were conducted with key informants in three companies to gain an in-depth insight into the research problem. ATLAS.ti was used for data analysis and coding. Results show the presence of barriers and facilitators documented in existing literature. However, our results reveal that the business size and the firm's main activity are important variables that affect the extent of digital transformation. The study also reveals the benefits of digitalization in terms of efficiency and human resource autonomy (flexibility, work-life balance). Likewise, the findings unveil the negative consequences of digitalization with risks such as depersonalization and isolation that undermine talent retention.

Resumen En los últimos años, el proceso de transformación digital ha ido ganando importancia. Sin embargo, no todas las empresas adquieren el mismo nivel de transformación. La presencia de barreras y facilitadores desempeña un papel importante en este proceso. Además, el alcance de la transformación digital también influye en cómo se ejecutan las políticas de recursos humanos (RH) y su impacto en los empleados. Este trabajo pretende comprender cómo se está produciendo el proceso de transformación digital desde un enfoque cualitativo. En concreto, en este estudio se analizan los principales impulsores y barreras de la digitalización en las empresas, así como sus efectos sobre la empresa, las personas y, sobre las prácticas de recursos humanos. Se realizaron ocho entrevistas semiestructuradas a informantes clave de tres empresas para conocer en profundidad el problema de investigación. Se utilizó ATLAS.ti para el análisis y la codificación de los datos. Los resultados muestran la existencia de barreras y facilitadores, tal y como ha identificado la literatura existente, sin embargo, nuestros resultados muestran que el tamaño de la empresa y el sector al que pertenece son variables importantes que afectan al nivel de transformación digital. El estudio también revela los beneficios de la digitalización en términos de eficiencia y sobre la autonomía de los recursos humanos (flexibilidad, conciliación). Asimismo, los resultados muestran también los efectos negativos de la digitalización como los riesgos como la despersonalización y el aislamiento que socavan la retención del talento.

Abstract The importance of humanitarian social intervention in situations of vulnerability in Ecuador is a topic that is extremely important to discuss since human solidarity is derived from it to help people who are going through some type of crisis, the objective of this article. It is to publicize the help that is provided to people or groups who are going through extreme problems and difficulties. The purpose of carrying out research focused on humanitarian social intervention in vulnerable environments in Ecuador is to offer information and knowledge through a bibliographic analysis. This will allow professionals and organizations involved in social intervention to design and apply effective strategies to address the needs of vulnerable people. Research can be key to identifying the underlying causes of vulnerability, evaluating the effectiveness of current interventions and proposing new solutions to improve the quality of life of those affected. This study seeks to determine the impact of humanitarian social interventions in vulnerable contexts in Ecuador and highlight their relevance. It is hoped that this analysis will not only inform current practices, but also inspire innovation and promote collaboration among diverse actors involved in caring for vulnerable populations.

Resumen La importancia de la intervención social humanitaria en situaciones de vulnerabilidad en Ecuador es un tema del cual se de suma importancia discutir ya que de este se deriva la solidaridad humana en ayuda de las personas que están atravesando algún tipo de crisis, el objetivo de este artículo es dar a conocer la ayuda que se brinda a las personas o grupos que están pasando por problemas y dificultades extremas. El propósito de llevar a cabo una investigación centrada en la intervención social humanitaria en entornos vulnerables en Ecuador es ofrecer información y conocimientos a través de un análisis bibliográfico. Esto permitirá a los profesionales y organizaciones implicadas en la intervención social diseñar y aplicar estrategias efectivas para atender las necesidades de las personas vulnerables. La investigación puede ser clave para identificar las causas subyacentes de la vulnerabilidad, evaluar la eficacia de las intervenciones actuales y proponer nuevas soluciones para mejorar la calidad de vida de los afectados. Este estudio busca determinar el impacto de las intervenciones sociales humanitarias en contextos vulnerables en Ecuador y destacar su relevancia. Se espera que este análisis no solo informe las prácticas actuales, sino que también inspire la innovación y promueva la colaboración entre diversos actores involucrados en la atención a poblaciones vulnerables.

Summary: The state of Chiapas presents degradation processes of dif ferent kinds, as a consequence of the current established agricultural model. It is estimated that, in the near future, the surface of the state of Chiapas will present more than 55% degradation, generating changes in the physical, chemical and biological properties of the soil, af fecting the quality of life of human beings, mainly due to scarcity of food. The objective of this research was to evaluate the quality of the soils in three municipalities of the central depression of Chiapas, Mexico. The analysis were interpreted taking NOM-021-SEMARNAT-2000 as a reference and were classified according to the world reference base (WRB), version 2014. For the evaluation of soil quality, the sustainable use of land subindex (SUSS). 144 soil samples corresponding to 21 profiles were analyzed. Of the 21 profiles studied, 17 present poor soil qualities, two a sensitive quality, one acceptable quality and one with good quality. Only two soil groups presented good fertility and are classified as Vertisols and Phaeozems, which present good quality and capacity to maintain sustainable agricultural production in this region.

Resumen: El estado de Chiapas presenta procesos de degradación de diferente índole, como consecuencia del actual modelo agrícola establecido. Se estima que, en el futuro cercano, la superficie del estado de Chiapas presente más de 55% de degradación, generando modificaciones en las propiedades físicas, químicas y biológicas del suelo; afectando la calidad de vida de los seres humanos, principalmente por escasez de alimentos. El objetivo de esta investigación fue evaluar la calidad de los suelos en tres municipios de la depresión central de Chiapas, México. Los análisis se interpretaron tomando como referencia la NOM-021-SEMARNAT-2000 y se clasificaron de acuerdo con la world reference base (WRB), versión 2014, para la evaluación de calidad del suelo se utilizó el subíndice de uso sustentable del suelo (SUSS). Se analizaron 144 muestras de suelo correspondientes a 21 perfiles. De los 21 perfiles estudiados, 17 presentan calidad de suelo pobre, dos calidades sensibles, uno calidad aceptable y uno con calidad buena. Solo dos Grupos de suelo presentaron buena fertilidad y son clasificados como Vertisols y Phaeozems, los cuales presentan buena calidad y capacidad para mantener producción agrícola sostenible en esta región.

RESUMEN La discriminación y las violencias basadas en género dirigidas en contra de la población LGBTIQ+ se han estructurado a través de los años en una sociedad heteronormativa, machista, patriarcal y religiosa, causando así graves violaciones a derechos humanos relacionada a factores de comisión de delitos como el homicidio, feminicidio y la tortura. Algo característico de la comisión de estos actos es la sistematicidad y el factor de diversidad sexual y de género por el cual se realizan, con el fin de adaptar un pensamiento conservador implementado en la sociedad, causando diferentes formas de discriminación, discursos de odio e interseccionalidad que afectan el pleno desarrollo y la garantía de una vida digna para la población LGBTIQ+. Debido a la zozobra generada en la población LGBTIQ+, y sumado a ello el rasgo histórico de esta violencia sistemática, resulta necesario e interesante abordar la perspectiva de los delitos de lesa humanidad desde un análisis de la diversidad sexual como factor indiscutible de que el género y las diversidades sexuales deben contar con una intervención y aplicación de las tipificaciones contempladas en el Estatuto de Roma, buscando que estos instrumentos internacionales se adapten plenamente a realidades sociales presentes, que han causado en la comunidad internacional preocupación y obligaciones para una plena garantía de derechos e igualdad social para la población LGBTIQ+.

ABSTRACT Discrimination and gender-based violence directed against the LGBTIQ+ population have been structured over the years in a heteronormative, sexist, patriarchal and religious society, thus causing serious violations of human rights related to factors in the commission of crimes such as homicide, feminicide and torture; Something characteristic of the commission of these acts is the systematicity and the factor of sexual and gender diversity by which they are carried out, in order to adapt a conservative thought implemented in society, causing different forms of discrimination, hate speech and intersectionality. that affect the full development and guarantee of a dignified life for the LGBTIQ+ population. Due to the anxiety generated in the LGBTIQ+ population, and added to this the historical feature of this systematic violence, it is necessary and interesting to address the perspective of crimes against humanity from an analysis of sexual diversity as an indisputable factor that gender and sexual diversities must have an intervention and application of the classifications contemplated in the Rome Statute, seeking that these international instruments fully adapt to present social realities and that have caused concern and obligations in the international community for a full guarantee of rights and social equality for the LGBTIQ+ population.

Abstract This article highlights one of the difficulties encountered in the reception of Humanae Vitae and Familiaris Consortio: the depth of the meaning of every conjugal act, its beauty and its explicit link with the Creator. This paradox provokes in the first place the faith of the baptized in the mystery of God, who is love and life, and in the second place the moral conscience. Would it not be too beautiful to be true? However, the union of spouses is first a religious act. The main doctrinal statement involves the union of the spouses and their parental responsibility. The true anthropological “cradle” of every human being is an act of interpersonal love. This act, rich and complex, has a double meaning: unitive and procreative. These meanings amalgamate with each other and translate the unity of persons who give themselves to each other. It is the great mystery that unites the spouses and God; and it is the place of a revelation.

Resumen El presente artículo pone en evidencia una de las dificultades que se encuentran en la recepción de la Humanae vitae y de la Familiaris consortio: la profundidad del sentido de todo acto conyugal, su belleza y su vínculo explicito con el Creador. Esta paradoja provoca en primer lugar la fe de los bautizados en el misterio de Dios, que es amor y vida, y en segundo término la conciencia moral. ¿No sería acaso demasiado hermoso para ser verdad? Sin embargo, la unión de los cónyuges es primero un acto religioso. El principal enunciado doctrinal envuelve la unión de los esposos y su responsabilidad parental. La verdadera “cuna” antropológica de todo ser humano es un acto de amor interpersonal. Este acto particular, rico y complejo, tiene un doble significado: unitivo y procreativo. Estos significados se amalgaman entre ellos, y traducen la unidad de las personas que se donan una a la otra. Es el gran misterio que une a los esposos y a Dios; y es el lugar de una revelación.

Abstract: The main objective of the present study is to assess the processes and changes on quality of life, social equity, and transformations due to the actions of students with engineering projects and their considerations. The methodology conducted for a period of eight years is based on interviews, observation grids, and field diaries with first, sixth, and tenth semester civil engineering students from three universities. The results show changes in students and monitors for the variables assessed, especially in growth knowledge build-up due to the considerations examined for both professional and in human competencies. Based on these processes, it is concluded that training with projects is relevant for learning in civil engineering and for improving the quality of life of professional environments.

Resumen: El principal objetivo del presente estudio es observar los procesos y los cambios en la calidad de vida, la equidad social y las trasformaciones por las acciones de los estudiantes con proyectos de ingeniería y sus reflexiones. La metodología aplicada por un periodo de ocho años se basa en entrevistas, rejillas de observación y diarios de campo con estudiantes de ingeniería civil de primero, sexto y décimo semestre de tres universidades. Los resultados muestran cambios efectuados en estudiantes y monitores en las variables descritas, especialmente en el crecimiento en la construcción de conocimiento por las reflexiones consideradas tanto en lo disciplinar como en competencias humanas. Con base en estos procesos, se concluye que la formación con proyectos es relevante para el aprendizaje en ingeniería civil y para mejorar la calidad de vida de los entornos de los profesionales.

SIGNIFICANCE: Given the extractive nature of many Western-led scientific activities in Africa, it is important to design research programmes that have long-term investments for (and on) the continent. These programmes must engage communities from local to regional levels to be sustainable, especially if they aim to achieve the sustainability of life systems continentally. In this regard, I propose and illustrate the value of using systemic approaches that focus primarily on the historicity and evolutionary nature of human-to-land relationships, which stem from shared identities, values, etc., to conduct engaged socio-economic-land studies as a subset of social-ecological systems.

Human health and well-being are directly and indirectly dependent on the life of river systems. Life in river systems is increasingly dependent on human actions that bring river health into being. Rather than describing river health as thing, problem or management challenge, this paper explores how river health is brought into being, through the citizen science practices of the Amanzi Ethu Nobuntu project in the upper uMngeni catchment in South Africa. The study draws on focal data produced by citizen science practitioners, as interpreted by them in collaboration with partners in the catchment, and their reflections on the meaning(s) of river health and how it came into being. Drawing on the concepts of citizen science as a co-learning process, integrative views of One Health, and commoning as activity the study offers a rich interpretation on how river health comes into being. The study shows the complex interrelated practices involved, including practices of resolving leaks and pollution challenges, social and community engagement, and the co-learning involved in citizen science practices itself. It offers insight into the social-ecological and ethical-political ontological dynamics of river health commoning activity thus offering alternatives to reductionist approaches to bringing river health into being, potentially also enriching tools for river health reporting. SIGNIFICANCE: The significance of the main findings of Sustainability Science Engagement and Engaged Sustainability Sciences includes how citizen science can be key for engaging local communities in sustainability research around sustainability challenges, such as river health, by linking to the health of the people and their everyday engagements with the river. Further contributions include conceptualising sustainability science engagement co-leaming processes of being in common around a shared matter of concern, such as bringing river health into being beyond technical specifications. Contributions are also made by highlighting how sustainability science engagement can result in richness in terms of knowing sustainability challenges.