Understanding the technological and pedagogical content knowledge (TPACK) of mathematics teachers as a possibility for reflection on the use of educational technology

Background: the broader access to technological resources, combined with pedagogical practices implementation, shows the need of continuing education of teachers on digital information and communication technologies (DICT). Recognizing the knowledge that professionals need in their work is a path that allows the evaluation and creation of training measures. Objectives: considering the pedagogical and technological content knowledge (TPACK) as a reference, we sought to investigate the professional knowledge of mathematics teachers about digital technological resources and their possible incorporation in pedagogical practices. Design: a qualitative research was carried out. Setting and participants: mathematics teachers working in high school, technical and higher education who participated in a short-term training proposal. Data collection and analysis: the research was based on meetings with mathematics teachers, in which the use of resources was discussed and lesson plans were elaborated; they were, then, followed up in a real scenario. Specific instruments, lesson plans, audiovisual records, and interviews were analyzed by textual discursive analysis (TDA), provided evidence about teachers’ use of resources. Results: different professional knowledge linked to TPACK were recognized at different levels and some factors such as professional experience and technological appropriation proved to be influential. Conclusions: in addition to the possibility of recognizing professional knowledge, it was noted that a specific character under the interpretation of TPACK recognizes such knowledge even in teachers with a low level of technology appropriation, which allowed reflections on the construct itself and its possible correlations with the pedagogical content knowledge (PCK)

Pinteiros cobertos - estufas para a redução da síndrome ascítica em frangos de corte.

bitstream/item/58545/1/CUsersPiazzonDocuments216.pd

O COMÉRCIO DE VALOR ADICIONADO E A PARTICIPAÇÃO DO BRASIL NAS CADEIAS GLOBAIS DE VALOR/The value-added trade and the participation of Brazil in global value chains: El comercio de valor añadido y la participación de Brazil en cadenas globales de valor

The aim of this paper is to analyze the evolution of Brazilian Domestic Value Added - DVA trade, as well as Brazil's participation in Global Value Chains - CGVs, considering the Brazilian main trading partners, through the Trade in value-added indicators - TiVA and the Inter-Country Input-Output Tables - ICIO, release 2018, made available by the Organization for Economic Co-operation and Development – OECD. The results show that products exported by Brazil to the European Union, China and South Korea have a higher proportion of DVA in relation to total exports. However, they are low value-added products in absolute terms, as they are mostly exported in natura or semi-processed. On the other hand, Products exported by Brazil to Argentina, Mexico, and the Andean region, have a lower proportion of DVA in relation to the total value of exports, however, they are high and medium technology products that use more elaborate processes in their production and make room for insertion of imported content, which corroborates for the greater insertion of Brazil in the GVCs. In addition, they have higher value added in absolute terms.El presente articulo tiene como objetivo analisar la evolución del comercio de Valor Añadido Doméstico - VAD braliseño, así como participación de Brasil en las Cadenas Globales de Valor - CGVs, considerando sus principales socios comerciales, por meio de los indicadores Trade in value-added - TiVA e de las matrices mundiales de aporte-producto Inter-Country, Input-Output Tables - ICIO release 2018, hechas disponibles por la Organisation for Economic Co-operation e Development - OECD. Los resultados mostran que los productos exportados por Brasil para la Unión Europea, China e Corea del Sur presentan maior proporción de VAD, en relación hacia el total de las exportaciones. Sin embargo, son productos con bajo valor añadido en términos absolutos, sí lo son, en su mayoría, exportados in natura o semielaborados. Ya los productos exportados por Brasil a Argentina, México, e la región Andina, presentan menor proporción de VAD en relación hacia el valor total de las exportaciones, sin embargo, son productos de alta e promedia tecnologia e que utilizan procesos más elaborados en su producción e abren más espacio para inserción de contenido importado, o que corrobora para la mayor inserción de Brasil en las CGVs. Además, presentan mayor valor añadido en términos absolutos.O presente artigo tem como objetivo analisar a evolução do comércio de Valor Adicionado Doméstico - VAD brasileiro, assim como participação do Brasil nas Cadeias Globais de Valor - CGVs, considerando os seus principais parceiros comerciais, por meio dos indicadores Trade in value-added – TiVA e das matrizes mundiais de insumo-produto Inter-Country Input-Output Tables – ICIO release 2018, disponibilizadas pela Organisation for Economic Co-operation e Development – OECD. Os resultados mostram que os produtos exportados pelo Brasil para União Europeia, China e Coréia do Sul apresentam maior proporção de VAD, em relação ao total das exportações. No entanto, são produtos com baixo valor adicionado em termos absolutos, pois são, em sua maioria, exportados in natura ou semielaborados. Já os produtos exportados pelo Brasil para Argentina, México, e a região Andina, apresentam menor proporção de VAD em relação ao valor total das exportações, contudo, são produtos de alta e média tecnologia que utilizam processos mais elaborados em sua produção e abrem mais espaço para inserção de conteúdo importado, o que corrobora para a maior inserção do Brasil nas CGVs. Além disso, apresentam maior valor adicionado em termos absolutos. Abstract: The aim of this paper is to analyze the evolution of Brazilian Domestic Value Added - DVA trade, as well as Brazil's participation in Global Value Chains - CGVs, considering the Brazilian main trading partners, through the Trade in value-added indicators - TiVA and the Inter-Country Input-Output Tables - ICIO, release 2018, made available by the Organization for Economic Co-operation and Development – OECD. The results show that products exported by Brazil to the European Union, China and South Korea have a higher proportion of DVA in relation to total exports. However, they are low value-added products in absolute terms, as they are mostly exported in natura or semi-processed. On the other hand, Products exported by Brazil to Argentina, Mexico, and the Andean region, have a lower proportion of DVA in relation to the total value of exports, however, they are high and medium technology products that use more elaborate processes in their production and make room for insertion of imported content, which corroborates for the greater insertion of Brazil in the GVCs. In addition, they have higher value added in absolute terms

O COMÉRCIO DE VALOR ADICIONADO E A PARTICIPAÇÃO DO BRASIL NAS CADEIAS GLOBAIS DE VALOR/The value-added trade and the participation of Brazil in global value chains

O presente artigo tem como objetivo analisar a evolução do comércio de Valor Adicionado Doméstico - VAD brasileiro, assim como participação do Brasil nas Cadeias Globais de Valor - CGVs, considerando os seus principais parceiros comerciais, por meio dos indicadores Trade in value-added – TiVA e das matrizes mundiais de insumo-produto Inter-Country Input-Output Tables – ICIO release 2018, disponibilizadas pela Organisation for Economic Co-operation e Development – OECD. Os resultados mostram que os produtos exportados pelo Brasil para União Europeia, China e Coréia do Sul apresentam maior proporção de VAD, em relação ao total das exportações. No entanto, são produtos com baixo valor adicionado em termos absolutos, pois são, em sua maioria, exportados in natura ou semielaborados. Já os produtos exportados pelo Brasil para Argentina, México, e a região Andina, apresentam menor proporção de VAD em relação ao valor total das exportações, contudo, são produtos de alta e média tecnologia que utilizam processos mais elaborados em sua produção e abrem mais espaço para inserção de conteúdo importado, o que corrobora para a maior inserção do Brasil nas CGVs. Além disso, apresentam maior valor adicionado em termos absolutos. Abstract: The aim of this paper is to analyze the evolution of Brazilian Domestic Value Added - DVA trade, as well as Brazil's participation in Global Value Chains - CGVs, considering the Brazilian main trading partners, through the Trade in value-added indicators - TiVA and the Inter-Country Input-Output Tables - ICIO, release 2018, made available by the Organization for Economic Co-operation and Development – OECD. The results show that products exported by Brazil to the European Union, China and South Korea have a higher proportion of DVA in relation to total exports. However, they are low value-added products in absolute terms, as they are mostly exported in natura or semi-processed. On the other hand, Products exported by Brazil to Argentina, Mexico, and the Andean region, have a lower proportion of DVA in relation to the total value of exports, however, they are high and medium technology products that use more elaborate processes in their production and make room for insertion of imported content, which corroborates for the greater insertion of Brazil in the GVCs. In addition, they have higher value added in absolute terms

Abordagem Investigativa da Química Forense: Uso de Recursos Audiovisuais e Experimentação em um Estudo de Caso

O presente trabalho se enquadra dentro do cenário de um relato de experiência a respeito do desenvolvimento de uma oficina de ensino sobre química forense, envolvendo o ensino por investigação, a experimentação e o uso de recursos audiovisuais. A proposta foi desenvolvida por estudantes participantes do Programa Institucional de Bolsas de Iniciação à Docência (PIBID) e com estudantes do ensino médio. Foram reconhecidas as percepções dos estudantes secundaristas sobre o desenvolvimento da atividade de modo a compreender seus aspectos positivos e negativos. De modo geral, a atividade trouxe importantes contribuições para a contextualização no ensino de química com foco nas dificuldades relacionadas à abordagem de conceitos para a resolução de situações-problema  e reflexão sobre o desenvolvimento profissional na formação inicial dos licenciandos

Guidelines for the management of neuroendocrine tumours by the Brazilian gastrointestinal tumour group

Neuroendocrine tumours are a heterogeneous group of diseases with a significant variety of diagnostic tests and treatment modalities. Guidelines were developed by North American and European groups to recommend their best management. However, local particularities and relativisms found worldwide led us to create Brazilian guidelines. Our consensus considered the best feasible strategies in an environment involving more limited resources. We believe that our recommendations may be extended to other countries with similar economic standards.Univ Sao Paulo, Inst Canc Estado Sao Paulo, BR-01246000 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Radiol & Oncol, BR-01246903 Sao Paulo, BrazilHosp Sirio Libanes, BR-01308050 Sao Paulo, BrazilHosp Moinhos de Vento Porto Alegre, BR-90035000 Porto Alegre, RS, BrazilOncoctr, BR-30360680 Belo Horizonte, MG, BrazilUniv Fed Rio Grande do Sul, Dept Cirurgia, BR-90040060 Porto Alegre, RS, BrazilHosp Clin Porto Alegre, BR-90035903 Porto Alegre, RS, BrazilUniv Fed Ceara, Fac Med, Dept Fisiol & Farmacol, BR-60020180 Fortaleza, Ceara, BrazilHosp Univ Walter Cantidio, BR-60430370 Fortaleza, Ceara, BrazilInst Nacl Canc, BR-20230240 Rio De Janeiro, BrazilUniv Sao Paulo, Fac Med, Disciplina Endocrinol & Metabol, BR-01246903 Sao Paulo, BrazilAC Camargo Canc Ctr, Dept Surg, BR-01509010 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Gastroenterol, Sao Paulo, BrazilUniv Fed Ciencias Saude Porto Alegre, BR-90050170 Porto Alegre, RS, BrazilHosp Albert Einstein, BR-05652900 Sao Paulo, BrazilHosp Base, Fac Med Sao Jose do Rio Preto, BR-15090000 Sao Paulo, BrazilSanta Casa Sao Jose do Rio Preto, BR-15025500 Sao Jose Do Rio Preto, BrazilPontificia Univ Catolica Parana, Hosp Erasto Gaertner, BR-81520060 Curitiba, Parana, BrazilUniv Fed Rio Grande do Norte, BR-59300000 Natal, RN, BrazilUniv Sao Paulo, Inst Coracao, BR-05403900 Sao Paulo, BrazilAC Camargo Canc Ctr, Med Oncol, BR-01509010 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilHosp Sao Rafael, BR-41253190 Salvador, BA, BrazilHosp Canc Barretos, Dept Cirurgia Aparelho Digest Alto & Hepatobiliop, BR-14784400 Sao Paulo, BrazilUniv Sao Paulo, Fac Med, Dept Patol, BR-01246903 Sao Paulo, BrazilClin AMO, BR-1950640 Salvador, BA, BrazilHosp Sao Jose, BR-01323001 Sao Paulo, BrazilUniv Nove de Julho, BR-02111030 Sao Paulo, BrazilUniv Fed Sao Paulo, Disciplina Gastroenterol, BR-04021001 Sao Paulo, BrazilWeb of Scienc