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OSTEOSSARCOMA FIBROBLÁSTICO DE TÍBIA COM TRATAMENTO DE LIMB-SPARING EM GOLDEN RETRIEVER
No full textBackground: Appendicular osteosarcoma is the most prevalent primary bone tumor in dogs. Radiographically, it typically exhibits a mixed pattern of osteolysis and osteoproliferation. Characteristic features include lytic and sclerotic lesions affecting all bone layers, periosteal reactions, and increased soft tissue volume surrounding the lesion. These radiographic changes aid in determining the lesion’s extent guide diagnostic and therapeutic decision-making. Limb-sparing surgery, which involves excision of the oncologic compartment and reconstruction using metallic or biological implants, offers outcomes comparable with those of limb amputation combined with chemotherapy.
Case: A 2.5-year-old Golden Retriever bitch was presented to the Veterinary Hospital of the School of Veterinary Medicine and Animal Science at the Universidade Federal de Goiás (HV/EVZ/UFG) with progressive lameness and swelling in the left stifle region previous 3 months. Radiographic imaging revealed lytic lesions in the left tibia consistent with a bone neoplasm. Specifically, the images demonstrated well-circumscribed zones of bone lysis with defined margins, along with areas exhibiting a “moth-eaten” appearance affecting the epiphysis and metaphysis. Synovial effusion and increased soft tissue volume were also noted. Histopathological and immunohistochemical evaluations confirmed the diagnosis of fibroblastic osteosarcoma. After discussing the available options, the veterinary team and the dog’s guardian opted for limb-sparing surgery. The procedure involved an osteotomy with resection of the tumor-involved segment and joint arthrodesis using a metallic implant. Two months postoperatively, the patient was brought back to hospital with a tibial fracture. Follow-up thoracic radiographs revealed pulmonary metastases. In light of the poor prognosis, euthanasia was recommended and subsequently performed.
Discussion: Accurate interpretation of the diverse radiographic presentations of appendicular osteosarcoma is essential for diagnosis and treatment planning. Although radiographic findings may initially appear purely lytic or sclerotic, a mixed pattern is more typical and should be carefully differentiated from early-stage osteomyelitis. Histopathological and immunohistochemical analyses are often required to determine the histogenesis of poorly differentiated neoplasms, particularly when morphology alone is inconclusive. While limb-sparing surgery is a viable alternative to amputation in selected canine patients with appendicular osteosarcoma, careful case selection is essential to reduce the risk of complications. Advanced imaging modalities are recommended for precise surgical planning and disease staging. Despite the prevalence of appendicular osteosarcoma in dogs, long-term survival remains a significant clinical challenge. In this case, the dog survived for 2 months following surgery before experiencing local recurrence and pulmonary metastasis. Radiographic imaging was instrumental not only in initial diagnosis but also in guiding surgical strategy and monitoring postoperative outcomes. Effective clinical management of osteosarcoma requires a multidisciplinary approach involving veterinary oncologists, surgeons, radiologists and pathologists. A comprehensive, team-based strategy is critical to optimizing therapeutic success and improving survival outcomes in affected patients.
Keywords: appendicular skeleton, radiography, sarcoma.
Título: Osteossarcoma fibroblástico de tíbia em uma cadela: tratamento com a técnica cirúrgica Limb-sparing
Descritores: esqueleto apendicular, radiografia, sarcoma.Background: Appendicular osteosarcoma is the most prevalent primary bone tumor in dogs. Radiographically, it typically exhibits a mixed pattern of osteolysis and osteoproliferation. Characteristic features include lytic and sclerotic lesions affecting all bone layers, periosteal reactions, and increased soft tissue volume surrounding the lesion. These radiographic changes aid in determining the lesion’s extent guide diagnostic and therapeutic decision-making. Limb-sparing surgery, which involves excision of the oncologic compartment and reconstruction using metallic or biological implants, offers outcomes comparable with those of limb amputation combined with chemotherapy.
Case: A 2.5-year-old female Golden Retriever was presented to the Veterinary Hospital of the School of Veterinary Medicine and Animal Science at the Universidade Federal de Goiás (HV/EVZ/UFG) with progressive lameness and swelling in the left stifle region previous 3 months. Radiographic imaging revealed lytic lesions in the left tibia consistent with a bone neoplasm. Specifically, the images demonstrated well-circumscribed zones of bone lysis with defined margins, along with areas exhibiting a “moth-eaten” appearance affecting the epiphysis and metaphysis. Synovial effusion and increased soft tissue volume were also noted. Histopathological and immunohistochemical evaluations confirmed the diagnosis of fibroblastic osteosarcoma. After discussing the available options, the veterinary team and the dog’s guardian opted for limb-sparing surgery. The procedure involved an osteotomy with resection of the tumor-involved segment and joint arthrodesis using a metallic implant. Two months postoperatively, the patient was brought back to hospital with a tibial fracture. Follow-up thoracic radiographs revealed pulmonary metastases. In light of the poor prognosis, euthanasia was recommended and subsequently performed.
Discussion: Accurate interpretation of the diverse radiographic presentations of appendicular osteosarcoma is essential for diagnosis and treatment planning. Although radiographic findings may initially appear purely lytic or sclerotic, a mixed pattern is more typical and should be carefully differentiated from early-stage osteomyelitis. Histopathological and immunohistochemical analyses are often required to determine the histogenesis of poorly differentiated neoplasms, particularly when morphology alone is inconclusive. While limb-sparing surgery is a viable alternative to amputation in selected canine patients with appendicular osteosarcoma, careful case selection is essential to reduce the risk of complications. Advanced imaging modalities are recommended for precise surgical planning and disease staging. Despite the prevalence of appendicular osteosarcoma in dogs, long-term survival remains a significant clinical challenge. In this case, the dog survived for 2 months following surgery before experiencing local recurrence and pulmonary metastasis. Radiographic imaging was instrumental not only in initial diagnosis but also in guiding surgical strategy and monitoring postoperative outcomes. Effective clinical management of osteosarcoma requires a multidisciplinary approach involving veterinary oncologists, surgeons, radiologists and pathologists. A comprehensive, team-based strategy is critical to optimizing therapeutic success and improving survival outcomes in affected patients
Entre a mademoiselle e a miss no ensino doméstico em Natal: professoras viajantes no nordeste do Brasil
No full textThe research discusses the representation of foreign traveling teachers in Domestic Schooling in Natal,northeastern Brazil, in the 1910s and 1920s. It presents documentary sources from the National Libraries ofBrazil, Portugal and France. Analyzes the object in the light of categories of the historiography of educationand authors such as: Chartier (1990), De Certeau (1994; 1996), Douki; Minard (2007) and Rogers (1995;2014; 2018). It highlights the significant exchange relationship between Brazil and other foreign institutions,especially Normal Schools, for the arrival of teachers and the departure of Brazilian graduates from theDomestic School of Natal to participate in training courses in Switzerland and Belgium. Among the mainprofiles of teachers to work in domestic education are the following: mademoiselle and miss, as archetypesof women teachers, single and foreign, coming in the case under analysis from Europe and the United States.A pesquisa discute a representação em torno de professoras viajantes estrangeiras em atuação no Ensino Doméstico em Natal, nordeste do Brasil, nas décadas de 1910 e 1920. Apresenta fontes documentais provenientes das Bibliotecas Nacionais do Brasil, de Portugal e da França. Analisa o objeto à luz de categorias da historiografia da educação e de autores como: Chartier (1990), De Certeau (1994; 1996), Douki; Minard (2007) e Rogers (1995; 2014; 2018). Destaca a significativa relação de intercâmbio entre o Brasil e demais instituições estrangeiras, sobretudo Escolas Normais, para a vinda de professoras e ida de brasileiras egressas da Escola Doméstica de Natal para participar de cursos formativos na Suíça e na Bélgica. Entre os principais perfis de professoras para atuação no ensino doméstico estão a mademoiselle e miss, como arquétipos de mulheres professoras, solteiras e estrangeiras, provenientes no caso em análise da Europa e dos Estados Unidos
Raimundo Llull (1232-1316) e os intelectuais do llullismo: reflexões sobre o uso de fontes na História da Educação
No full textIn this work, we discuss two biographies that have presented the life of Ramon Llull. We try to identify each one’s particularities on their describing and characterizing their subject. The way these elements are taken and reorganized, we argue, tell us about the political and intellectual projects of each one of the selected works’s authors and masterminds. First we analyze the biography composed on behalf of Llull’s disciple Thomas Le Myésier (?-1336). Finally, we discuss the Vita Beati Raimundi, written in 1511 by the french intellectual Charles de Bovelles (1479-1553) aiming to defend and revitalize Llull’s thinking in Paris. Our aim is to show that at each time a source is taken up, it implies news ways of interpretation which are developed in accordance to the political context and individual that retake it. So, we argue that it’s the present who build and interprets the past.En este texto exploramos dos biografías que se centran en la vida y obra de Ramón Llull. Buscamos identificar las especificidades de cada una de ellas, describiendo cómo caracterizan al sujeto, su proyecto intelectual y religioso. Sostenemos que estos elementos informan de los proyectos políticos e intelectuales de los autores y creadores de las obras seleccionadas. Inicialmente, abordamos la biografía realizada en miniaturas y texto, planeada y encargada por Thomas Le Myésier (?-1336), discípulo directo de Llull. Finalmente, analizamos la Vita Beati Raimundi, escrita en 1511 por el intelectual francés Charles de Bovelles (1479-1553), quien la escribió en el marco de la revitalización del pensamiento luliano en París. Nuestro propósito es de evidenciar que a toda reanudación de una fuente, nuevos enfoques son construidos y desarrollados, según el momento político y el sujeto quien la reanuda. Así, señalamos que es el presente quien construye y interpreta la historia de una fuente.Dans cet article nous essayons de discuter deux biographies qui traitent d’un même sujet, c’est à dire, de la vie de Ramon Llull. Nous avons cherché à mettre en évidence les particularités de chacune de ces biographies, en montrant comment elles caractérisent leur personnage, son projet intellectuel et religieux. La façon selon laquelle ces données sont considérées et organisées – c’est ce que nous essayons de montrer – nous apprend sur les projets intellectuels et politiques des auteurs et sponsors de ces œuvres présentées. D’abord nous examinons la biographie conçue en miniatures et texte, commandée par Thomas Le Miésier ( ?-1336), disciple direct de Ramon Llull. Finalement, nous examinons la biographie écrite en 1511 par l’intellectuel français Charles de Bouvelles (1479-1553). Notre but est de mettre en évidence que à chaque reprise d’une source, des nouvelles interprétations sont développées en accordance avec le moment politique et le sujet qui la reprend. Donc, nous cherchons à montrer qu’est le présent qui construit et interprète l’histoire d’une source.Neste texto exploramos duas biografias que têm como objeto a vida e obra de Raimundo Llull (1232-1316). Procuramos identificar as especificidades de cada uma, mapeando como caracterizam o biografado e o seu projeto intelectual e religioso. Estes elementos informam sobre os projetos políticos e intelectuais de cada um dos autores e idealizadores das obras selecionadas. Inicialmente abordamos a biografia produzida em miniaturas e texto, projetada e encomendada por Thomas Le Myésier (?-1336), discípulo direto de Llull. Por fim, discute-se a Vita Beati Raimundi, escrita em 1511 pelo intelectual francês Chales de Bovelles (1479-1553), que a redige no quadro de revitalização do pensamento lluliano em Paris. Nosso propósito é evidenciar que a cada revisitação de uma fonte, novas abordagens são construídas e elaboradas, em decorrência do momento político e do ator que a recupera
ESSE AGORA NÃO É DE HOJE: O COLORISMO DOS CORPOS NEGROS NOS LIVROS DIDÁTICOS DE GEOGRAFIA
No full textThe text aims to challenge the images of Black bodies in Geography textbooks through the discourse of colorism in order to subjectivize students' Blackness. It is necessary to understand the textbook as a cultural artefact, a strategic means of shaping perception, categorization, interpretation and collective memory, making the textbook a delineator of identities that produces and reproduces collective memories. In order to achieve the objectives of this work, we rely on the methodological path of post-critical research because it calls for a reflexive perspective on the contexts and realities presented, making it possible to break away from the colonial vision that runs through our subjectivities and prevents the production of binary and fixed research. The previous theoretical references for this research will be drawn upon Ethnic-Racial Studies, Decolonial Studies and Post-Critical Studies based on authors such as Cida Bento, Sueli Carneiro, Renato Émerson dos Santos, Marlucy Alves Paraíso, Wenceslao Machado de Oliveira Jr, Michel Foucault, among other researchers who have contributed to this research. Initial observations in the textbooks show that colorism and racism are still present, based on a colonial discourse in which images of Black bodies are treated differently based on the shade of their skin, appearing through the process of whitening and segregation of the Black population, valuing the ideal of whiteness and denying an identity based on Blackness.Este texto busca cuestionar las imágenes de cuerpos negros en los libros de texto de Geografía a través del discurso del colorismo para subjetivar la negritud de los estudiantes. Es necesario entender el libro de texto como un artefacto cultural, un medio estratégico para moldear la percepción, la categorización, la interpretación y la memoria colectiva, haciendo del libro de texto un delineador de identidades que produce y reproduce memorias colectivas. Para alcanzar los objetivos de este trabajo, buscamos apoyarnos en el camino metodológico de la investigación postcrítica, porque exige una mirada reflexiva sobre los contextos y realidades presentadas, posibilitando romper con la visión colonial que atraviesa nuestras subjetividades e impide la producción de investigaciones binarias y fijas. Las referencias teóricas previas para esta investigación se basarán en los Estudios Étnico-Raciales, Estudios Decoloniales y Estudios Postcríticos a partir de autores como Cida Bento, Sueli Carneiro, Renato Émerson dos Santos, Marlucy Alves Paraíso, Wenceslao Machado de Oliveira Jr, Michel Foucault, entre otros investigadores que han contribuido a esta investigación. Las primeras miradas a los libros de texto muestran que el colorismo y el racismo siguen presentes desde un discurso colonial en el que las imágenes de los cuerpos negros son tratadas de forma diferente a las personas por su tono de piel. Esto se manifiesta a través del proceso de blanqueamiento y segregación de la población negra, valorando el ideal de blancura y negando la identidad basada en la negritud.Este texto tem a intenção de tensionar as imagens dos corpos negros dos livros didáticos de Geografia através do discurso do colorismo para subjetivar a negritude dos estudantes. É preciso apreender o livro didático enquanto um artefato cultural, sendo um meio estratégico para moldar a forma de percepção, de categorização, de interpretação e de memória coletiva, tornando a obra didática uma delineadora de identidades que produz e reproduz memórias coletivas. Para alcançar os objetivos desse trabalho busca-se apoio no caminho metodológico da pesquisa pós-crítica por convocar para um olhar reflexivo aos contextos e realidades apresentadas, possibilitando uma ruptura da visão colonial que atravessa nossas subjetividades e impede a produção de pesquisas binárias e fixas. Os referenciais teóricos prévios para esta pesquisa serão aproximados dos Estudos Étnico-Raciais, Estudos Decoloniais e Estudos Pós-Críticos a partir de autores como Cida Bento, Sueli Carneiro, Renato Émerson dos Santos, Marlucy Alves Paraíso, Wenceslao Machado de Oliveira Jr., Michel Foucault, entre outros pesquisadores que contribuíram com essa pesquisa. Olhares iniciais nos livros didáticos apontam o colorismo e o racismo ainda se fazem presentes a partir de um discurso colonial em que as imagens de corpos negros recebem tratamento diferenciado dado a pessoas com base na tonalidade de sua pele, aparecendo por meio do processo de embranquecimento e segregação da população negra, valorizando o ideal de brancura e negando a identidade baseada na negritude
MAINSTREAMING SECURITY NORMS AS JAPANESE STRATEGY TO GAIN ITS GLOBAL POWER: A CONTENT ANALYSIS ON ODA DOCUMENTS
No full textJapan's defeat in World War II did not discourage its obsession to become a global power that influences the behaviour of other countries and the world order at large. Following World War II, despite being constrained by the 1947 Constitution, Japan emerged as an economic agent capable of playing a significant role on the global stage through economic and cultural instruments. Overseas Development Assistance (ODA) has become one of the key tools for Japan to actively participate and contribute to current global politics. This article aims to identify Japan's strategy in using ODA to maintain its influence as a global power. Using content analysis of 2015 ODA Charter or Development Cooperation Charter (DCC) and the White Paper on Development Cooperation (WPDC), this article finds that Japan's strategy to maintain its influence at the global level is carried out by prioritising human security norms in ODA distribution. The Japanese government consistently applies normative and operational norms regarding human security rather than national security to ensure acceptance from recipient countries. These efforts begin with the development of Japan's legal governance framework, which is designed in a smart, systematic, objective, and visionary manner. Japan demonstrates how a country facing constitutional constraints can become a stable global power
Sequência didática para o ensino de ecotoxicologia: muro de problemas e árvore de soluções na extensão universitária
No full textAs metodologias ativas se destacam como estratégias capazes de promover aprendizagens significativas, fortalecendo o protagonismo estudantil e a reflexão crítica. Este artigo apresenta a experiência do Projeto de Extensão Diálogos sobre a Ecotox! por meio da sequência didática Muro de Problemas e Árvore de Soluções, desenvolvida com estudantes do Ensino Fundamental II e Ensino Médio. A proposta buscou articular conceitos de ecotoxicologia, com ênfase nos impactos do uso de agrotóxicos, poluição e práticas sustentáveis. A atividade consistiu na identificação coletiva de problemas socioambientais e na proposição de soluções. Os resultados evidenciaram maior compreensão dos conteúdos científicos e engajamento dos participantes na busca de alternativas viáveis, como educação ambiental, políticas públicas e inovação tecnológica. Conclui-se que a metodologia favoreceu a construção coletiva do conhecimento e a formação cidadã crítica, integrada ao compromisso com a sustentabilidade
CRÔNICAS INDÍGENAS PARA LER E REFLETIR NA ESCOLA : DECOLONIALIDADE E RESISTÊNCIA INDÍGENAS
No full textDue to the implementation of coloniality, African and Indigenous populations were enslaved and dehumanized with the purpose of maintaining the white European society in control of the means of production and social relations. In Brazil, many Indigenous ethnic groups were decimated or forcibly removed from their territories to make way for agricultural, pastoral, and mining activities. In order to legitimize such practices, it was (and still is) necessary to uphold this ideology. To confront these ideals and the principles that sustain them, the book Crônicas indígenas para ler e refletir na escola, written by the Indigenous author Munduruku (2020), aims at to explain how coloniality and racialization mechanisms operate within Brazilian society to preserve the political and economic dominance of European hegemony Furthermore, the texts in the analyzed book contribute to the dismantling of these concepts and encourage new ways of understanding the perspectives that continue to shape contemporary society. This study is based on bibliographical research and descriptive analysis, drawing on scholars whose works address not only decoloniality but also themes such as racialization and necropolitics.Em razão da implementação da colonialidade, populações africanas e indígenas foram escravizadas e inferiorizadas com o intuito de manter a sociedade branca e europeia no controle dos bens de produção e das relações sociais. No Brasil, muitas etnias indígenas foram dizimadas ou retiradas de seus territórios para dar lugar a atividades agropastoris e de mineração. Para validar tal atitude, havia (e ainda há) a necessidade de manter vigente essa ideologia. Para enfrentar esses ideais e os princípios que o sustentam, a obra Crônicas indígenas: para ler e refletir na escola, do escritor indígena Munduruku (2020) objetiva explicar como a colonialidade e os dispositivos de racialidade operam na sociedade brasileira a fim de manter os domínios políticos e econômicos da hegemonia europeia. Além disso, os textos do livro analisado contribuem com a quebra desses conceitos e instigam uma nova forma de analisar as concepções que ainda vinculam na atual sociedade. Trata-se de uma pesquisa bibliográfica e de uma análise descritiva pautadas em pesquisadores que, além de abordarem a decolonialidade em suas obras, tratam também de temas como racialidade e necropolítica
PARA COMPREENDER DIREITOS, SABERES E CONHECIMENTOS “ROUBADOS” AOS POVOS TRADICIONAIS
No full textUnderstanding Rights, Knowledge, and Wisdom “Stolen” from Traditional PeoplesAbstract: This article aims to discuss and understand traditional peoples from the perspective of the predatory practices that “steal” rights, knowledge, and wisdom from groups that maintain their resilience through ancestral knowledge passed down through the defense of indigenous territories, the presence of differentiated education schools, and the art that “instructs” the daily struggle of indigenous peoples. It analyzes the contributions to the dossier entitled “Stolen Rights,” Traditional Knowledge and Wisdom, highlighting the correlations present among the works submitted to Espaço Ameríndio (Amerindian Space) as a response to the call/provocation made to the journal's audience.Discutir e compreender os povos tradicionais a partir da prática de rapina que “rouba” direitos, saberes e conhecimentos dos coletivos que mantém sua resiliência pela consideração de conhecimentos ancestrais repassados via defesa dos territórios indígenas, presença de escolas de educação diferenciada e da arte que “instruem” a luta cotidiana dos povos indígenas é o objetivo do artigo que analisa às contribuições ao dossiê denominado Direitos “roubados”, Saberes e Conhecimentos tradicionais apontando as correlações presentes entre os trabalhos submetidos ao Espaço Ameríndio como respostas à convocação/provocação feita ao público do periódico
Avaliando a construtibilidade de projetos de habitação de interesse social no Brasil: um sistema de benchmarking quantitativo
No full textSocial Housing Projects (HIS) are essential for reducing Brazil’s housing deficit. However, constructability problems can undermine the efficiency achieved in those projects, negatively affecting the purpose of having low cost. One approach for reducing constructability issues is to use constructability assessment systems (CAS). Existing CAS lack data that allow for setting goals, or even studies that provide an overview of constructability in HIS in each country. Thus, the aim of this research study is to develop a quantitative benchmarking constructability system for HIS. This study was based on data from 394 projects. The development of this quantitative benchmarking system pointed out the potential for improving constructability in those projects, by adopting different measures, such as the use of BIM, changing construction processes, and achieving appropriate levels of standardization. This system can support companies that wish to improve the constructability in HIS projects, by reducing the bias of evaluating only their own data, or Brazilian HIS financial institutions. This benchmarking system represents a theoretical-practical advance in the knowledge about constructability, given that similar studies are limited or non-existent in other countries.Projetos de Habitação de Interesse Social (HIS) são fundamentais para reduzir o déficit habitacional brasileiro. Problemas de construtibilidade podem torná-los menos eficientes, prejudicando o propósito do baixo custo. Para reduzir esses problemas, uma abordagem consiste no uso de Sistemas de Indicadores (CAS). Nos CAS existentes faltam dados que permitam definir metas, ou estudos que apontem qual o panorama num dado país. Assim, essa pesquisa objetivou desenvolver um sistema de benchmarking quantitativo de construtibilidade em HIS. Com base no método de DSR, o artefato gerado foi um sistema de benchmarking quantitativo, baseado em 394 projetos. Por meio do sistema de benchmarking quantitativo, potenciais nacionais de melhoria da construtibilidade foram evidenciados, e.g., a adoção de outros processos construtivos ou níveis razoáveis de padronização. O sistema pode oferecer suporte a empresas que desejem melhorar a construtibilidade de seus projetos HIS (reduzindo o viés de avaliação de seus próprios dados), ou a agências de financiamento de HIS. Esse sistema de benchmarking representa um avanço teórico-prático no conhecimento sobre construtibilidade, haja vista que estudos similares são limitados ou inexistem em outros países