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Papers by Tiago Correa Saboia

Research paper thumbnail of Trabalho e a sociobiodiversidade a partir de experiências etnofotográficas na feira do Juaba, Cametá/PA

Research paper thumbnail of Utilização Da Biodiversidade Vegetal No Pescar e No Colher No Território Das Águas Do Baixo Tocantins, Cametá-Pa

Margens, Jan 27, 2024

This article discusses the use of plant biodiversity in two important activities that mark the wa... more This article discusses the use of plant biodiversity in two important activities that mark the ways of life of traditional populations. We sought to understand the ethnobiological knowledge in traditional communities used in the manufacture of fishing and extractive equipment. Hold discussions on fishing activities and plant extraction; and the variety of equipment are the specific objectives that guide this research. To collect the data, semi-structured interviews, field notebooks and open questionnaires were used for families living in four communities in the island region of the municipality of Cametá. Eight (08) devices made from ten (10) plant species were identified. The matapí was the equipment most mentioned by informants. Specific species are identified in (04) botanical families, with Arecaceae being the most cited family. The informants presented important ethnobiological knowledge about the species, as well as the ethnodefinition of each individual and their respective use in the community.

Research paper thumbnail of Antibody response against c-terminal region of the Plasmodium vivax merozoite surface protein-1 in individuals from area without malária transmission

lntroduction. The natural exposition for Plasmodium antigen is a factor that can contribute for a... more lntroduction. The natural exposition for Plasmodium antigen is a factor that can contribute for acquisition of antibodies. The 19kDa C-terminal region of me merowite surface protein 1 (MSPl19) is a highly immunogenic conserved region of Plasmodium vivax and one of the most promising vaccine candidates against the erythrocytic forms of malaria. In the past reaIS, we had studied several immuno-epidemiological aspects of me malaria in individuaIs living in areas ofstable and exclusive transmission of P vivax in the norm of Brazil, but till this moment we do not have data available abolir the acquisition of these antibodies in samples from individuaIs mat reside in areas where the cases of malaria are not reported. Objective. The aim of this study was to analyze the antibody response among individuaIs living in areas without transmission of P vivax Material and Methods. We had produced arecombinant protein containing me His6 tag in fusion with P vivax MSPl19 in order to test and analyze antigenicity. The antibodies IgG against His6-MSPl19 were evaluated by ELISA in sera from 259 individuaIs living in Sucuriju island, located in Amapá state. ResuIts. The percentage of sera that recognized me recombinant protein was 14.67% (38/259). The concentration of antibodies was low. The mean of reactivity index was 1.66 j: 0.87. In the population examined, 250 individuaIs related never have had malaria. Among the exposed to parasite (9 individuaIs), only 2 were positive for IgG aritibodies that recognized the recombinant protein. The frequency of response was low and in cases of previous malaria episodes, only few cases were positive for detection of these specific antibodies. Conclusion. We observed that IgG antibodies response against His6-MSPl19 was detected in individuaIs that reside in area where malaria transmission was never demonstrated and that these individuaIs were exposed in anomer moment to parasite. These re$Ults shown mat MSPl19 is immunogenic after infection by P vivax but the antibodies response have an rapid decay and the re-exposition is important for a persistent antibodies response. Financial support: PETROBRAS/PIATAM-MAR, CNPq and FAPESPA.

Research paper thumbnail of Programa Residência Pedagógica e a Formação Inicial De Professores: Reflexões a Partir De Uma Proposta Contra-Hegemônica Na Educação Do Campo

Inter-Ação, Aug 31, 2022

Este artigo tem por objetivo refletir sobre as contradições do Programa Residência Pedagógica (RP... more Este artigo tem por objetivo refletir sobre as contradições do Programa Residência Pedagógica (RP) em meio à epistemologia da prática imposta pelo Edital CAPES Nº 06/2018, bem como analisar a Licenciatura em Educação do Campo da Universidade Federal do Pará, Campus do Tocantins/Cametá, como uma política de formação na perspectiva contra-hegemônica. A metodologia se ancorou em estudos bibliográficos, documentais e pesquisa de campo. Os resultados apontaram que a vivência efetiva dos estudantes em processo de formação, do curso em análise, procurou formá-los a fim de atuar nas escolas do campo, implementando um currículo de perspectiva interdisciplinar, centrado na vida e no trabalho, em que os conhecimentos socioculturais e científicos estejam em permanente diálogo.

Research paper thumbnail of Correction: Serologically Defined Variations in Malaria Endemicity in Pará State, Brazil

Research paper thumbnail of Agroecossistemas e Conhecimento Etnoecológico: Contribuições Para a Conservação Da Biodiversidade No Município De Cametá, Pará

Editora Científica Digital eBooks, 2021

Research paper thumbnail of Relações Socioambientais No Contexto Ribeirinho Amazônico: Um Estudo De Caso Na Comunidade De Pacuí De Cima, Cametá-Pa

Editora Científica Digital eBooks, 2022

Research paper thumbnail of Ciências da Natureza e Educação do Campo: reflexões formativas no âmbito do Programa “Escola da terra” da Amazônia Paraense

Revista Brasileira de Educação do Campo

This paper presents a reflection about continuing and permanent training, which is structured fro... more This paper presents a reflection about continuing and permanent training, which is structured from the Escola da Terra Program and is developed in the experience of the Amazon region of Pará with field teachers who work in multigrade schools. The methodology was anchored in bibliographic studies. It sought to dialogue about Natural Science as an area of knowledge and discussed science and scientific knowledge in dialogue with the references of Rural Education. The field research focused on the participant observations and records collected during training cycles in the alternating Natural Science carried out at Tempo Universidade together with field teachers in 2018. The results indicate that the formations of the Escola da Terra Program have problematized the reality of multigrade schools with the local public authorities. In addition, they provoked and challenged the work of teachers towards a perspective of pedagogy of transgression, in which there is a critical rethinking of the...

Research paper thumbnail of A Pesca Começa Na Mata: A Biodiversidade Vegetal e a Confecção De Apetrechos De Pesca No Território Das Ilhas Do Município De Cametá-Pa

Meio ambiente e a outra economia dos povos e comunidades tradicionais

Research paper thumbnail of Serologically defined variations in malaria endemicity in Pará state, Brazil

PloS one, 2014

Measurement of malaria endemicity is typically based on vector or parasite measures. A complement... more Measurement of malaria endemicity is typically based on vector or parasite measures. A complementary approach is the detection of parasite specific IgG antibodies. We determined the antibody levels and seroconversion rates to both P. vivax and P. falciparum merozoite antigens in individuals living in areas of varying P. vivax endemicity in Pará state, Brazilian Amazon region. The prevalence of antibodies to recombinant antigens from P. vivax and P. falciparum was determined in 1,330 individuals. Cross sectional surveys were conducted in the north of Brazil in Anajás, Belém, Goianésia do Pará, Jacareacanga, Itaituba, Trairão, all in the Pará state, and Sucuriju, a free-malaria site in the neighboring state Amapá. Seroprevalence to any P. vivax antigens (MSP1 or AMA-1) was 52.5%, whereas 24.7% of the individuals were seropositive to any P. falciparum antigens (MSP1 or AMA-1). For P. vivax antigens, the seroconversion rates (SCR) ranged from 0.005 (Sucuriju) to 0.201 (Goianésia do Pará...

Research paper thumbnail of A quantidade de milho influencia na proliferação de gorgulho? aspectos teóricos que subsidiam o processo de construção de dados de uma investigação

Universidade Estadual Paulista Julio de Mesquita Filho, Departamento de Fisica e Quimica, Faculda... more Universidade Estadual Paulista Julio de Mesquita Filho, Departamento de Fisica e Quimica, Faculdade de Engenharia de Guaratingueta, Guaratingueta, Av. Ariberto P. Cunha, 333, Pedregulho, CEP 12500000, SP, Brasil

Research paper thumbnail of Serologically Defined Variations in Malaria Endemicity in Pará State, Brazil

PLoS ONE, 2014

Background: Measurement of malaria endemicity is typically based on vector or parasite measures. ... more Background: Measurement of malaria endemicity is typically based on vector or parasite measures. A complementary approach is the detection of parasite specific IgG antibodies. We determined the antibody levels and seroconversion rates to both P. vivax and P. falciparum merozoite antigens in individuals living in areas of varying P. vivax endemicity in Pará state, Brazilian Amazon region. Methodology/Principal Findings: The prevalence of antibodies to recombinant antigens from P. vivax and P. falciparum was determined in 1,330 individuals. Cross sectional surveys were conducted in the north of Brazil in Anajá s, Belé m, Goiané sia do Pará , Jacareacanga, Itaituba, Trairã o, all in the Pará state, and Sucuriju, a freemalaria site in the neighboring state Amapá. Seroprevalence to any P. vivax antigens (MSP1 or AMA-1) was 52.5%, whereas 24.7% of the individuals were seropositive to any P. falciparum antigens (MSP1 or AMA-1). For P. vivax antigens, the seroconversion rates (SCR) ranged from 0.005 (Sucuriju) to 0.201 (Goiané sia do Pará), and are strongly correlated to the corresponding Annual Parasite Index (API). We detected two sites with distinct characteristics: Goiané sia do Pará where seroprevalence curve does not change with age, and Sucuriju where seroprevalence curve is better described by a model with two SCRs compatible with a decrease in force of infection occurred 14 years ago (from 0.069 to 0.005). For P. falciparum antigens, current SCR estimates varied from 0.002 (Belé m) to 0.018 (Goiané sia do Pará). We also detected a putative decrease in disease transmission occurred ,29 years ago in Anajá s, Goiané sia do Pará , Itaituba, Jacareacanga, and Trairã o. Conclusions: We observed heterogeneity of serological indices across study sites with different endemicity levels and temporal changes in the force of infection in

Research paper thumbnail of Trabalho e a sociobiodiversidade a partir de experiências etnofotográficas na feira do Juaba, Cametá/PA

Research paper thumbnail of Utilização Da Biodiversidade Vegetal No Pescar e No Colher No Território Das Águas Do Baixo Tocantins, Cametá-Pa

Margens, Jan 27, 2024

This article discusses the use of plant biodiversity in two important activities that mark the wa... more This article discusses the use of plant biodiversity in two important activities that mark the ways of life of traditional populations. We sought to understand the ethnobiological knowledge in traditional communities used in the manufacture of fishing and extractive equipment. Hold discussions on fishing activities and plant extraction; and the variety of equipment are the specific objectives that guide this research. To collect the data, semi-structured interviews, field notebooks and open questionnaires were used for families living in four communities in the island region of the municipality of Cametá. Eight (08) devices made from ten (10) plant species were identified. The matapí was the equipment most mentioned by informants. Specific species are identified in (04) botanical families, with Arecaceae being the most cited family. The informants presented important ethnobiological knowledge about the species, as well as the ethnodefinition of each individual and their respective use in the community.

Research paper thumbnail of Antibody response against c-terminal region of the Plasmodium vivax merozoite surface protein-1 in individuals from area without malária transmission

lntroduction. The natural exposition for Plasmodium antigen is a factor that can contribute for a... more lntroduction. The natural exposition for Plasmodium antigen is a factor that can contribute for acquisition of antibodies. The 19kDa C-terminal region of me merowite surface protein 1 (MSPl19) is a highly immunogenic conserved region of Plasmodium vivax and one of the most promising vaccine candidates against the erythrocytic forms of malaria. In the past reaIS, we had studied several immuno-epidemiological aspects of me malaria in individuaIs living in areas ofstable and exclusive transmission of P vivax in the norm of Brazil, but till this moment we do not have data available abolir the acquisition of these antibodies in samples from individuaIs mat reside in areas where the cases of malaria are not reported. Objective. The aim of this study was to analyze the antibody response among individuaIs living in areas without transmission of P vivax Material and Methods. We had produced arecombinant protein containing me His6 tag in fusion with P vivax MSPl19 in order to test and analyze antigenicity. The antibodies IgG against His6-MSPl19 were evaluated by ELISA in sera from 259 individuaIs living in Sucuriju island, located in Amapá state. ResuIts. The percentage of sera that recognized me recombinant protein was 14.67% (38/259). The concentration of antibodies was low. The mean of reactivity index was 1.66 j: 0.87. In the population examined, 250 individuaIs related never have had malaria. Among the exposed to parasite (9 individuaIs), only 2 were positive for IgG aritibodies that recognized the recombinant protein. The frequency of response was low and in cases of previous malaria episodes, only few cases were positive for detection of these specific antibodies. Conclusion. We observed that IgG antibodies response against His6-MSPl19 was detected in individuaIs that reside in area where malaria transmission was never demonstrated and that these individuaIs were exposed in anomer moment to parasite. These re$Ults shown mat MSPl19 is immunogenic after infection by P vivax but the antibodies response have an rapid decay and the re-exposition is important for a persistent antibodies response. Financial support: PETROBRAS/PIATAM-MAR, CNPq and FAPESPA.

Research paper thumbnail of Programa Residência Pedagógica e a Formação Inicial De Professores: Reflexões a Partir De Uma Proposta Contra-Hegemônica Na Educação Do Campo

Inter-Ação, Aug 31, 2022

Este artigo tem por objetivo refletir sobre as contradições do Programa Residência Pedagógica (RP... more Este artigo tem por objetivo refletir sobre as contradições do Programa Residência Pedagógica (RP) em meio à epistemologia da prática imposta pelo Edital CAPES Nº 06/2018, bem como analisar a Licenciatura em Educação do Campo da Universidade Federal do Pará, Campus do Tocantins/Cametá, como uma política de formação na perspectiva contra-hegemônica. A metodologia se ancorou em estudos bibliográficos, documentais e pesquisa de campo. Os resultados apontaram que a vivência efetiva dos estudantes em processo de formação, do curso em análise, procurou formá-los a fim de atuar nas escolas do campo, implementando um currículo de perspectiva interdisciplinar, centrado na vida e no trabalho, em que os conhecimentos socioculturais e científicos estejam em permanente diálogo.

Research paper thumbnail of Correction: Serologically Defined Variations in Malaria Endemicity in Pará State, Brazil

Research paper thumbnail of Agroecossistemas e Conhecimento Etnoecológico: Contribuições Para a Conservação Da Biodiversidade No Município De Cametá, Pará

Editora Científica Digital eBooks, 2021

Research paper thumbnail of Relações Socioambientais No Contexto Ribeirinho Amazônico: Um Estudo De Caso Na Comunidade De Pacuí De Cima, Cametá-Pa

Editora Científica Digital eBooks, 2022

Research paper thumbnail of Ciências da Natureza e Educação do Campo: reflexões formativas no âmbito do Programa “Escola da terra” da Amazônia Paraense

Revista Brasileira de Educação do Campo

This paper presents a reflection about continuing and permanent training, which is structured fro... more This paper presents a reflection about continuing and permanent training, which is structured from the Escola da Terra Program and is developed in the experience of the Amazon region of Pará with field teachers who work in multigrade schools. The methodology was anchored in bibliographic studies. It sought to dialogue about Natural Science as an area of knowledge and discussed science and scientific knowledge in dialogue with the references of Rural Education. The field research focused on the participant observations and records collected during training cycles in the alternating Natural Science carried out at Tempo Universidade together with field teachers in 2018. The results indicate that the formations of the Escola da Terra Program have problematized the reality of multigrade schools with the local public authorities. In addition, they provoked and challenged the work of teachers towards a perspective of pedagogy of transgression, in which there is a critical rethinking of the...

Research paper thumbnail of A Pesca Começa Na Mata: A Biodiversidade Vegetal e a Confecção De Apetrechos De Pesca No Território Das Ilhas Do Município De Cametá-Pa

Meio ambiente e a outra economia dos povos e comunidades tradicionais

Research paper thumbnail of Serologically defined variations in malaria endemicity in Pará state, Brazil

PloS one, 2014

Measurement of malaria endemicity is typically based on vector or parasite measures. A complement... more Measurement of malaria endemicity is typically based on vector or parasite measures. A complementary approach is the detection of parasite specific IgG antibodies. We determined the antibody levels and seroconversion rates to both P. vivax and P. falciparum merozoite antigens in individuals living in areas of varying P. vivax endemicity in Pará state, Brazilian Amazon region. The prevalence of antibodies to recombinant antigens from P. vivax and P. falciparum was determined in 1,330 individuals. Cross sectional surveys were conducted in the north of Brazil in Anajás, Belém, Goianésia do Pará, Jacareacanga, Itaituba, Trairão, all in the Pará state, and Sucuriju, a free-malaria site in the neighboring state Amapá. Seroprevalence to any P. vivax antigens (MSP1 or AMA-1) was 52.5%, whereas 24.7% of the individuals were seropositive to any P. falciparum antigens (MSP1 or AMA-1). For P. vivax antigens, the seroconversion rates (SCR) ranged from 0.005 (Sucuriju) to 0.201 (Goianésia do Pará...

Research paper thumbnail of A quantidade de milho influencia na proliferação de gorgulho? aspectos teóricos que subsidiam o processo de construção de dados de uma investigação

Universidade Estadual Paulista Julio de Mesquita Filho, Departamento de Fisica e Quimica, Faculda... more Universidade Estadual Paulista Julio de Mesquita Filho, Departamento de Fisica e Quimica, Faculdade de Engenharia de Guaratingueta, Guaratingueta, Av. Ariberto P. Cunha, 333, Pedregulho, CEP 12500000, SP, Brasil

Research paper thumbnail of Serologically Defined Variations in Malaria Endemicity in Pará State, Brazil

PLoS ONE, 2014

Background: Measurement of malaria endemicity is typically based on vector or parasite measures. ... more Background: Measurement of malaria endemicity is typically based on vector or parasite measures. A complementary approach is the detection of parasite specific IgG antibodies. We determined the antibody levels and seroconversion rates to both P. vivax and P. falciparum merozoite antigens in individuals living in areas of varying P. vivax endemicity in Pará state, Brazilian Amazon region. Methodology/Principal Findings: The prevalence of antibodies to recombinant antigens from P. vivax and P. falciparum was determined in 1,330 individuals. Cross sectional surveys were conducted in the north of Brazil in Anajá s, Belé m, Goiané sia do Pará , Jacareacanga, Itaituba, Trairã o, all in the Pará state, and Sucuriju, a freemalaria site in the neighboring state Amapá. Seroprevalence to any P. vivax antigens (MSP1 or AMA-1) was 52.5%, whereas 24.7% of the individuals were seropositive to any P. falciparum antigens (MSP1 or AMA-1). For P. vivax antigens, the seroconversion rates (SCR) ranged from 0.005 (Sucuriju) to 0.201 (Goiané sia do Pará), and are strongly correlated to the corresponding Annual Parasite Index (API). We detected two sites with distinct characteristics: Goiané sia do Pará where seroprevalence curve does not change with age, and Sucuriju where seroprevalence curve is better described by a model with two SCRs compatible with a decrease in force of infection occurred 14 years ago (from 0.069 to 0.005). For P. falciparum antigens, current SCR estimates varied from 0.002 (Belé m) to 0.018 (Goiané sia do Pará). We also detected a putative decrease in disease transmission occurred ,29 years ago in Anajá s, Goiané sia do Pará , Itaituba, Jacareacanga, and Trairã o. Conclusions: We observed heterogeneity of serological indices across study sites with different endemicity levels and temporal changes in the force of infection in