8 research outputs found

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Pervasive gaps in Amazonian ecological research

    Get PDF

    Pervasive gaps in Amazonian ecological research

    Get PDF
    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

    Pervasive gaps in Amazonian ecological research

    Get PDF
    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

    As vivências do cuidador informal do idoso dependente Las experiencias de los cuidadores informales de ancianos dependientes The experiences of informal caregivers of dependent elderly

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    Numa sociedade cada vez mais envelhecida, onde se verifica um aumento significativo das necessidades em saúde dos idosos, emerge como foco de atenção o cuidado informal à pessoa idosa dependente, cuja responsabilidade cabe prioritariamente à família. Cuidar de quem cuida é uma responsabilidade e deverá ser uma preocupação de todos os profissionais de saúde, em especial dos Enfermeiros, devendo ser a sua intervenção centrada no equilíbrio da dinâmica cuidador/idoso. Este equilíbrio é facilmente perturbado pelo cuidado informal ao idoso dependente, motivo pelo qual elaborámos o presente artigo com o objectivo de descrever as vivências sentidas pelo cuidador informal, encontradas na produção científica disponível. A pesquisa foi realizada nas seguintes bases de dados: CINAHL, MedicLatina, MEDLINE, Psychology and Behavioral Sciences Collection; Repositório Científico de Acesso Aberto de Portugal; The Cochrane Library, DynaMed; SciELO; e Google Scholar, conduzindo a uma amostra de 17 estudos primários e uma revisão sistemática da literatura. Os principais resultados encontrados evidenciam alguns eixos, em torno dos quais se constroem as vivências do cuidador informal do idoso dependente, nomeadamente: os motivos de aceitação do papel; as dificuldades; as estratégias de coping; os factores relacionados com a sobrecarga e as fontes de satisfação que advêm do acto de cuidar.<br>En una sociedad cada vez más envejecida, donde hay un aumento significativo de las necesidades de salud de las personas mayores, surge como un foco de atención informal a la persona mayor dependiente, cuya responsabilidad corresponde principalmente a la familia. El cuidado del cuidador es una responsabilidad y debe ser una preocupación para todos los profesionales de la salud, especialmente las enfermeras, su intervención debe centrarse en el equilibrio dinámico del cuidador / anciano. Este equilibrio se altera fácilmente por el cuidado informal a personas mayores con dependencia, y por eso hemos preparado este artículo para describir las experiencias que sienten los cuidadores informales, que se encuentran en la literatura científica disponible. La encuesta se realizó en las bases de datos: CINAHL, MedicLatina, MEDLINE, Behavioral Sciences Collection; the Open Access Repositório Científico de Acesso Aberto de Portugal, Cochrane Library, DynaMed, SciELO y El Google Académico, lo que lleva a una muestra de 17 estudios primaria y una revisión sistemática de la literatura. Los resultados apuntan principal la existencia de algunos ejes, en torno a que las experiencias de los cuidadores informales de ancianos dependientes se construyen, a saber: las razones para aceptar el papel, las dificultades, las estrategias de afrontamiento, factores & quot relacionados con la carga y las fuentes de satisfacción provocada por el acto de cuidar.<br>In an increasingly aging society, where there is a significant increase in health needs of the elderly is emerging, as attention focus, the informal care to dependent elderly person whose responsibility belongs primarily to the family. Caring for the caregiver is a responsibility and should be a concern of all health professionals, especially the nurses, being that their intervention should be focused on the dynamic equilibrium of caregiver / elderly. This balance is easily disturbed by the informal care to elderly dependent, and due to this motive we drafted the present article that aims to describe the experiences felt by informal caregivers, that were found in the scientific literature available. The survey was conducted in the following databases: CINAHL, MedicLatina, MEDLINE, Psychology and Behavioral Sciences Collection; the Open Access Repository Scientific Portugal; The Cochrane Library, DynaMed, SciELO and Google Scholar, leading to a sample of 17 studies primary and a systematic literature review. The main results point out the existence of some axes, around which the experiences of informal caregivers of dependent elderly are built, namely: the reasons for accepting the role; the difficulties; coping strategies; factors related to the burden and sources of satisfaction triggered by the act of caring

    Novos mapas para as ciências sociais e humanas

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    Seminário de Dissertação (2024)

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    Página da disciplina de Seminário de Dissertação (MPPP, UFPE, 2022) Lista de participantes == https://docs.google.com/spreadsheets/d/1mrULe1y04yPxHUBaF50jhaM1OY8QYJ3zva4N4yvm198/edit#gid=

    Characterisation of microbial attack on archaeological bone

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    As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved
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