Abstract: Biosphere reserves have among their functions to support scientific research, education, training and monitoring. In the Cape Horn Biosphere Reserve (RBCH), created in 2005, this function has been fulfilled with the creation of the Omora Ethnobotanical Park in 2000, and its implementation in 2008 as a co-founder site of the Chilean Network of Studies Long-Term Socio- Ecological (LTSER-Chile). In 2016, this network has been strengthened with the addition of the new Cape Horn Long-Term Socio-Ecological Research Network (LTER-Cape Horn). The latter includes the Omora Ethnobotanical Park, and three new sites added to the monitoring of the sub-Antarctic Magellanic ecoregion. From south to north, the four sites are: (1) Gonzalo Island (56°31’S; 68°43’O), at the southern end of the Diego Ramírez Archipelago, with sub- Antarctic vegetation dominated by grasses and cryptogams, devoid of woody species; (2) Horn Island (55°58’S; 67°13’O), at the southern end of the Cape Horn Archipelago, hosting the southernmost forest ecosystems on the planet, which are dominated by the evergreen beech (Nothofagus betuloides); (3) Omora Ethnobotanical Park (54°57’S; 67°40’O), Navarino Island, an ideal site for studies on climate change and its impact on biota and sub-Antarctic ecosystems, since it protects a watershed that includes a representative mosaic of characteristic habitats of the RBCH in an altitudinal gradient with a thermal decrease analogous to that which occurs with increases in latitude; and (4) Caleta 2 de Mayo Site (54°52’S; 68°41’O), Yendegaia Bay, in an ecotonal zone between evergreen and deciduous forests (product of the local climate gradient), at a site that will be central to future connectivity between Continental Chile, Tierra del Fuego, Navarino Island, and the RBCH. In 2015, UNESCO approved the Report of the First Periodic Review of the RBCH that proposed the protection of the Diego Ramírez Archipelago and the creation of the Diego Ramírez Islands-Drake Passage Marine Park. This goal was achieved with the promulgation of this new park on February 2, 2018, and its entry into force on January 21, 2019 with the publication of the creation decree in the Diario Oficial of Chile. In this context, the new LTER-Cape Horn network acquires great local, national and global relevance. At the local scale, it covers a representative environmental heterogeneity of the great diversity of landscapes and terrestrial, freshwater and marine ecosystems of the RBCH and the sub-Antarctic Magellanic ecoregion. At the national scale, it incorporates sub-Antarctic sites, located at the southern end of South America, to LTSER-Chile and to the Monitoring Network of the Ministry of the Environment. On a global scale, the terrestrial ecosystems of the LTER-Cape Horn network stands out for two main reasons: (1) these sub-Antarctic ecosystems lack a geographical replicate in other continents of the southern hemisphere, and (2) high latitude ecosystems are especially sensitive to global climate change. Thus, the LTER-Cape Horn network helps to overcome critical geographical gaps in the implementation of the International Network for Long-Term Ecological Research (ILTER). In order to articulate these four sites and strengthen the training of technical capacities and knowledge transfer to decision makers in the area of special interest tourism and other sustainable economic activities, the LTER-Cape Horn network will be managed locally from the new Cape Horn Sub-Antarctic Center (Cape Horn Center) that will be inaugurated in Puerto Williams in 2021. The implementation of the LTER-Cape Horn network is based on a close collaboration with various public institutions: Ministry of National Assets, Ministry of the Environment, Subsecretary of Fisheries and Aquaculture of the Ministry of Economy Development and Tourism, National Forestry Service, General Water Directorate of the Ministry of Public Works, Navy of Chile, Chilean Police (Carabineros), Municipality of Cape Horn, Provincial Government of Chilean Antarctica, and the Regional Government of Magallanes and Chilean Antarctica. In the following phases, the LTER-Cape Horn network and the Cape Horn Center aim to strengthen the participation of the local community, especially the Yahgan Indigenous Community of Bahía Mejillones, artisanal fisheries, tour operators, and the educational community, including private actors. Located at the “southern summit” of the Americas, Puerto Williams, capital of the Chilean Antarctic Province emerges as a global hub for transdisciplinary sub-Antarctic research, equipped with a new center and the network of long-term socio-ecological studies. Collaboration with regional, national and international actors will allow the LTER-Cape Horn network and the Cape Horn Center to: (i) provide critical data, which will open up new opportunities for monitoring climate change and its impact on biodiversity and ecosystems in sub-Antarctic latitudes; (ii) consolidate long-term monitoring, which is an essential component to effectively design mitigation and adaptation actions; (iii) strengthen a local sustainable development model that, associated with the Cape Horn Biosphere Reserve, contributes from the south of the world, to a biocultural conservation model that meets the needs of socio-economic well-being and environmental sustainability at multiple regional and planetary scales.

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ABSTRACT To determine the epidemiological and clinical characteristics of patients with acute myocardial infarc tion, a descriptive study was conducted in 175 patients in a referral hospital in Lima. The average age of the patients was 68.7 ± 10.8 years and 74.8% were male. The main reperfusion strategy used was percutaneous transluminal coronary angioplasty + stent, however, the use of primary angioplasty was low (19.5% of patients with ST elevation myocardial infarction). Time to reperfusion therapies (angio plasty or fibrinolysis) were longer than recommended and the percentage of surgical revascularization was high. Almost 60% of the patients had a length of stay longer than seven days. In-hospital mortality was 3.4%, with cardiogenic shock being the most frequent cause of death. Myocardial infarction mainly affects men over 60 years, the clinical and epidemiological variables are like other regional reports. The main reperfusion strategy is angioplasty, although the use of primary angioplasty is low. Time to perfor ming reperfusion is longer than recommended and the percentage of surgical revascularization is high.

RESUMEN Con el objetivo de determinar las características clínicas y epidemiológicas de los pacientes con infarto de miocardio agudo (IMA), se realizó un estudio descriptivo en 175 pacientes de un hospital peruano de referencia. La edad promedio de los pacientes fue de 68,7 años y el 74,8% fueron de sexo masculino. La principal estrategia de reperfusión utilizada fue la angioplastia coronaria transluminal percutánea + stent, aunque su uso primario resultó ser bajo; además, el porcentaje de revascularización quirúrgica fue alto. Casi el 60% de los pacientes tuvo una estancia hospitalaria mayor a siete días. La mortalidad intra hospitalaria fue de 3,4%, siendo el shock cardiogénico la causa más frecuente de muerte. Se concluye que el IMA afecta principalmente a varones mayores de 60 años y que la principal estrategia de reperfusión es la angioplastia, además, los tiempos para la realización de la reperfusión son mayores a lo recomendado con porcentajes altos de revascularización quirúrgica.

ABSTRACT To determine the epidemiological and clinical characteristics of patients with acute myocardial infarc tion, a descriptive study was conducted in 175 patients in a referral hospital in Lima. The average age of the patients was 68.7 ± 10.8 years and 74.8% were male. The main reperfusion strategy used was percutaneous transluminal coronary angioplasty + stent, however, the use of primary angioplasty was low (19.5% of patients with ST elevation myocardial infarction). Time to reperfusion therapies (angio plasty or fibrinolysis) were longer than recommended and the percentage of surgical revascularization was high. Almost 60% of the patients had a length of stay longer than seven days. In-hospital mortality was 3.4%, with cardiogenic shock being the most frequent cause of death. Myocardial infarction mainly affects men over 60 years, the clinical and epidemiological variables are like other regional reports. The main reperfusion strategy is angioplasty, although the use of primary angioplasty is low. Time to perfor ming reperfusion is longer than recommended and the percentage of surgical revascularization is high.

RESUMEN Con el objetivo de determinar las características clínicas y epidemiológicas de los pacientes con infarto de miocardio agudo (IMA), se realizó un estudio descriptivo en 175 pacientes de un hospital peruano de referencia. La edad promedio de los pacientes fue de 68,7 años y el 74,8% fueron de sexo masculino. La principal estrategia de reperfusión utilizada fue la angioplastia coronaria transluminal percutánea + stent, aunque su uso primario resultó ser bajo; además, el porcentaje de revascularización quirúrgica fue alto. Casi el 60% de los pacientes tuvo una estancia hospitalaria mayor a siete días. La mortalidad intra hospitalaria fue de 3,4%, siendo el shock cardiogénico la causa más frecuente de muerte. Se concluye que el IMA afecta principalmente a varones mayores de 60 años y que la principal estrategia de reperfusión es la angioplastia, además, los tiempos para la realización de la reperfusión son mayores a lo recomendado con porcentajes altos de revascularización quirúrgica.