24 research outputs found

    ARTICULANDO NÍVEIS DA LUTA PELA HEGEMONIA NA REVOLUÇÃO PASSIVA: O FENÔMENO DO LAND GRABBING E A CONCILIAÇÃO BURGUESA NO MODELO DESENVOLVIMENTISTA DO PT

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    This article proposes the beginning of an investigation that follows the path trodden by thinkers who are the heirs of Marxism, and more exclusively by Antonio Gramsci. Thus, in the first part we seek to reassemble the circuit of microscopic relationships that designed the route of class struggle with hegemonic aspirations that determined the dynamics of capital accumulation in the Lula governments 1 and 2, as well as in the rapid period of overthrow of the Dilma Roussef administration. In the second part, the pressure exerted by international capital was exemplified in its ability to cause spatial transformations (which bring implications in areas such as: transformation of landscapes, water distribution management, soil productivity, legal access to land by traditional communities, etc. ) in Brazil. To this end, we invested in the reconstruction of important moments in the enactment of Laws that regulate the purchase of arable land in the national territory by foreign investors, the phenomenon of Land Grabbing, which easily leads us to questions about the onslaughts of Imperialism in the 21st century.Este artículo propone el inicio de una investigación que sigue el camino recorrido por pensadores herederos del marxismo, y más exclusivamente por Antonio Gramsci. Así, en la primera parte buscamos reconstruir el circuito de relaciones microscópicas que diseñaron la ruta de la lucha de clases con aspiraciones hegemónicas que determinaron la dinámica de acumulación de capital en los gobiernos de Lula 1 y 2, así como en el rápido período de derrocamiento de el gobierno de Dilma Roussef. ) en Brasil. Para ello, invertimos en la reconstrucción de momentos importantes en la promulgación de Leyes que regulan la compra de tierras cultivables en el territorio nacional por parte de inversionistas extranjeros, el fenómeno del Land Grabbing, que fácilmente nos lleva a interrogarnos sobre los embates del Imperialismo en el siglo 21.Propõe-se neste artigo um início de investigação que percorre o caminho trilhado dos pensadores herdeiros do marxismo e mais exclusivamente de Antonio Gramsci. Assim, na primeira parte buscamos remontar o circuito de relações microscópicas que desenharam a rota da luta de classes com aspirações hegemônicas que determinaram a dinâmica da acumulação do capital nos governos Lula 1 e 2, assim como no rápido período de derrocada da gestão Dilma Roussef. Na segunda parte, a pressão exercida pelo capital internacional foi exemplificada na sua capacidade de causar transformações espaciais (que trazem implicações em áreas como: transformação das paisagens, gestão de distribuição hídrica, produtividade do solo, acesso legal à terra por comunidades tradicionais e etc.) no Brasil. Para tanto, investimos na reconstrução de momentos importantes na promulgação de Leis que regulamentam a compra de terras cultiváveis em território nacional por investidores estrangeiros, o fenômeno da Land Grabbing, que facilmente nos remete às questões sobre as investidas do Imperialismo no século XXI

    Energia fotovoltaica: estudo de viabilidade econômica para implantação em edificações residenciais no Tocantins/ Photovoltaic energy: economic viability study for implementation in residential buildings in Tocantins

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    A amplificação do crescimento populacional e uso exacerbado dos recursos naturais, levando em consideração a poluição gerada e a natureza finita das energias fósseis tornam o modelo energético atual questionável. Nesse cenário de preocupação em relação ao meio ambiente e o futuro do planeta, busca-se cada vez mais por fontes de energias alternativas. Nesse contexto, a energia solar surge como uma excelente fonte de energia sustentável, indo na contramão das fontes de energia não renováveis. Este artigo objetiva avaliar a aplicação da energia solar como substituição de fontes de energia convencionais, fazendo um breve estudo de viabilidade econômica para implantação em edificações residenciais, levando em consideração o perfil econômico do cidadão tocantinense. Como resultado, concluiu-se que a instalação de energia fotovoltaica é viável para atender a demanda de energia residencial tocantinense, contudo, é frágil no ponto de vista econômico, uma vez que seu alto custo de implantação é elevado, dependendo de algum tipo de financiamento ou de incentivo de novas políticas públicas governamentais

    A influência da infecção do vírus COVID-19 em indivíduos com vírus da imunodeficiência humana no Brasil

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    A covid-19 é caracterizada como uma doença infecciosa que sobrecarregou os sistemas de saúde públicos e privados, uma vez que os profissionais de saúde ainda não tinham conhecimento suficiente para tratar os infectados e controlar as consequências provenientes dessa doença. Com o passar do tempo e a vivência, os estudos foram sendo feitos e constatou-se que o SARS-CoV-2 apresenta taxas de morbidade e mortalidade mais altas em alguns grupos, entre eles está o grupo de pessoas infectadas com o vírus da imunodeficiência humana (HIV). O HIV causa imunossupressão, posto que é um vírus com afinidade pela célula T CD4+, as células de defesa do sistema imune são tomadas e destruídas, contudo, o portador não morre pela infecção do HIV, mas por doenças infecciosas oportunistas como o novo coronavírus. O objetivo desta revisão é analisar o efeito da covid-19 em indivíduos com o vírus da imunodeficiência humana. Esta pesquisa é uma revisão sistemática integrativa, a fim de compreender a vulnerabilidade desse grupo durante a pandemia, em vista da maior necessidade de atenção e cuidados especiais que os portadores de HIV apresentam. Foram utilizados os bancos de dados Biblioteca Virtual em Saúde (BVS) e Public/Publisher MEDLINE (PubMed), e as estratégias de busca com os seguintes descritores: “HIV”, “COVID-19”, “immunocompromised host”; com “AND” como operador booleano entre os descritores combinados. Dentro das estratégias de busca, foram utilizados artigos do período de 2020 até outubro de 2022.  Por fim, a análise feita neste artigo permite concluir os efeitos nocivos do SARS-CoV-2 em pessoas com HIV

    Classification of schizophrenic traits in transcriptions of audio spectra from patient literature: artificial intelligence models enhanced by geometric properties

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    Schizophrenia is a severe mental illness that affects approximately 1% of the global population and presents significant challenges for patients, families, and healthcare professionals. Characterized by symptoms such as delusions, hallucinations, disorganized speech or behavior, and cognitive impairment, this condition has an early onset and chronic trajectory, making it a debilitating challenge. Schizophrenia also imposes a substantial burden on society, exacerbated by the stigma associated with mental disorders. Technological advancements, such as computerized semantic, linguistic, and acoustic analyses, are revolutionizing the understanding and assessment of communication alterations, a significant aspect in various severe mental illnesses. Early and accurate diagnosis is crucial for improving prognosis and implementing appropriate treatments. In this context, the advancement of Artificial Intelligence (AI) has provided new perspectives for the treatment of schizophrenia, with machine learning techniques and natural language processing allowing a more detailed analysis of clinical, neurological, and behavioral data sets. The present article aims to present a proposal for computational models for the identification of schizophrenic traits in texts.  The database used in this article was created with 139 excerpts of patients' speeches reported in the book “Memories of My Nervous Disease” by German judge Daniel Paul Schreber, classifying them into three categories: 1 - schizophrenic, 2 - with schizophrenic traits and 3 - without any relation to the disorder. Of these speeches, 104 were used for training the models and the others 35 for validation.Three classification models were implemented using features based on geometric properties of graphs (number of vertices, number of cycles, girth, vertex of maximum degree, maximum clique size) and text entropy. Promising results were observed in the classification, with the Decision Tree-based model [1] achieving 100% accuracy, the KNN- k-Nearest Neighbor model observed with 62.8% accuracy, and the 'centrality-based' model with 59% precision. The high precision rates, observed when geometric properties are incorporated into Artificial Intelligence Models, suggest that the models can be improved to the point of capturing the language deviation traits that are indicative of schizophrenic disorders. In summary, this study paves the way for significant advances in the use of geometric properties in the field of psychiatry, offering a new data-based approach to the understanding and therapy of schizophrenia

    Nascidos vivos com fenda palatina e labial: estudo epidemiológico

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    Introduction: Cleft lip and palate is a congenital malformation resulting from the inadequate fusion of bony structures during embryonic development. The etiology is multifactorial, involving genetic and environmental factors. Methodology: This study constitutes a descriptive epidemiological analysis focusing on the investigation of cases of live births with cleft lip and palate in Brazil. Data collection will be conducted through the Live Birth Information System (SINASC) during the period from 2017 to 2021. Results: The gender distribution of live births with cleft lip and palate indicates a male predominance in the sample, representing approximately 58.49% (n=4,390) of the total. Meanwhile, the percentage of female individuals is approximately 41.01% (n=3,078). The category "Unknown" has a very small representation, accounting for only 0.51% (n=38) of the sample. Conclusion: It is observed that live births with cleft lip and palate should not be overlooked. There is a significant number of cases each year, necessitating further related studies to provide solutions in society that directly benefit those affected.Introdução: A fenda labial e palatina é uma malformação congênita resultante da não fusão das estruturas ósseas adequadas durante o desenvolvimento embrionário. A etiologia é multifatorial, envolvendo fatores genéticos e ambientais. Metodologia: Este estudo constitui uma análise epidemiológica descritiva com enfoque na investigação dos casos de nascidos vivos com fenda labial e palatina no Brasil. A coleta de dados será realizada por meio do Sistema de Informações sobre Nascidos Vivos (SINASC) durante o período de 2017 a 2021. Resultado: A distribuição de gênero dos nascidos vivos com fenda labial e palatina indica que há uma maioria masculina na amostra, representando cerca de 58,49%  (n= 4.390) do total. Enquanto isso, a porcentagem de pessoas do sexo feminino é de aproximadamente 41,01% (n = 3.078) A categoria "Ignorado" tem uma representação muito pequena, com apenas 0,51% (n = 38) da amostra. Conclusão: Observa-se que os nascidos vivos com fenda labial e palatina não devem ser negligenciados. Há uma quantidade significativa de nascidos por ano, sendo indispensável mais estudos relacionados, a fim de trazer soluções na sociedade que beneficiem diretamente os acometidos

    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

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    Brazilian coffee genome project: an EST-based genomic resource

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    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
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