Abstract: A French poem by Rilke, published in 1926 with the Vergers cycle of poems, is translated here in two similar but not identical versions. The poem and its double translation give rise to two questions: (1) why has the reception of Rilke’s French poems been more restricted or circumscribed than that of his German poems? (2) why two different translations of the same poem? Taken as a principle of reflection, the poem with its simultaneous double translation should open the way to understanding the two questions, their possible kinship and, more generally, the convergence between criticism and creation. The critical concept of reflection as a return to oneself and an opening to the other and the concept (metaphor) of a space of indeterminacy are the most visible landmarks of the path traced at each turn by reflection itself.

Resumo: Um poema francês de Rilke, publicado em 1926 com o ciclo de poemas Vergers, é traduzido aqui em duas versões similares, mas não idênticas. O poema e sua dupla tradução dão origem a duas perguntas: (1) por que a recepção dos poemas franceses de Rilke tem sido mais restrita ou circunscrita que a de seus poemas alemães? (2) por que duas traduções diferentes do mesmo poema? Tomado como princípio da reflexão, o poema com sua dupla tradução simultânea deve abrir caminho para compreender as duas questões, seu eventual parentesco e, de modo mais geral, a convergência entre crítica e criação. O conceito crítico de reflexão como retorno a si e abertura para o outro e o conceito (metáfora) de espaço de indeterminação são os marcos mais visíveis do caminho traçado a cada volta pela própria reflexão.

Connaraceae is a plant family usually used in traditional medicine. Recently, we have reported the chemical composition and biological activity of 39 species around the world. This work highlights the application of these species to diabetes control, which has been reported at least to half of this family. In this line, there are several species of the Connaraceae without scientific evidence of traditional use, among these the four species study here. Thus, this work aims the chemical composition prospection of Connarus blanchetii, Connarus regnellii, Connarus suberosus and Rourea glazioui, as well as the identification of possible bioactivity. The leaves of these four species were collected, prepared and submitted to different extractive methods (aqueous decoction and infusion and ethanolic maceration), these being tested in a preliminary phytochemical investigation and subjected to antioxidant assay with 2,2-diphenyl-1-picrylhydrazyl and ferric reducing antioxidant power. Then, we selected the maceration extract to continue for fractions, with the ethyl acetate and n-butanol presenting the best results with antioxidant and anti-advanced glycation end products (AGEs) activity potential. Finally, the chemical composition was determinate by high-resolution mass spectrometry (HRMS) in combination with Global Natural Products Service (GNPS) data bank. As a result, this study indicated the presence of 29 phenolics compounds with reported activity as antioxidant and with potential of protein glycation, supported the diabetes activity of this plants. The n-butanolic fraction of R. glazioui showed compounds such as apigenin, kaempferol, quercetin, myricetin and chlorogenic acid, which have generated a half maximal inhibitory concentration (IC50) of 36.5 µg mL 1 for oxidative glycation inhibition, being highlighted as the most active.

Resumo: O objetivo deste artigo é apresentar dados sobre a dinâmica contemporânea da política de encarceramento na realidade sergipana, com ênfase na racialização que tem incidido, majoritariamente, sobre a população negra. Fundamentada no materialismo histórico-dialético, articula dados de natureza bibliográfica e documental, utilizando as informações disponíveis no Levantamento Nacional de Informações Penitenciárias (INFOPEN), bem como contribuições da teoria social marxista e da criminologia crítica. Com os resultados, expõe-se parte do perfil da população prisional no estado nos anos de 2018 e 2019. Constatou-se que existe um perfil racializado da população carcerária com predominância de homens negros, além da tendência de aumento da população carcerária feminina, com índices acima da média nacional, bem como das condições de desumanização e de violação de direitos, a que estes sujeitos estão submetidos, reafirmando uma articulação estrutural entre capitalismo, racismo e sexismo, a partir da ampliação das estratégias de criminalização desses segmentos por meio do cárcere.

Abstract: The aim of the text is to present data on the contemporary dynamics of incarceration policy in Sergipe reality, with an emphasis on the racialization that has mostly focused on the black population. Based on historical-dialectical materialism, it articulates bibliographic and documentary data, using data available from the National Survey of Penitentiary Information (INFOPEN), as well as contributions from Marxist social theory and critical criminology. With the results, part of the profile of the prison population in the state in the years 2018 and 2019 is exposed. It was found that there is a racialized profile of the prison population with a predominance of black men, in addition to the tendency of the prison population to increase female, with rates above the national average, as well as the conditions of dehumanization and violation of rights, to which these subjects are subjected, reaffirming a structural articulation between capitalism, racism and sexism, from the expansion of criminalization strategies of these segments by middle of prison.

Background: Sarcopenia and low quality of life (QOL) are widely found among hemodialysis (HD) patients. We aimed to verify whether risk of sarcopenia can predict QOL level in patients submitted to HD. Methods: The sample was formed by 147 chronic kidney disease patients undergoing HD in October 2020 at a single dialysis center.  Demographic and clinical data were collected. Risk of sarcopenia was classified using the SARC-F questionnaire. QOL was evaluated by the Brazilian version of the SF-36. QOL scores were compared between patients with and without risk of sarcopenia. Multivariate linear regression was performed to test risk of sarcopenia as an independent predictor of QOL scores. Results: There were 62 (42.2%) patients classified as having risk of sarcopenia. In the comparison of QOL scores between patients with and without risk of sarcopenia, scores of seven dimensions were significantly lower among patients with sarcopenia risk, the only exception being role-emotional. Risk of sarcopenia was an independent predictor of six dimensions of QOL, except for role-emotional and mental health. Conclusion: We found risk of sarcopenia to be an independent predictor of QOL among HD patients. Our results point to the possibility of improving patients’ QOL by intervening to minimize the risk of sarcopenia.

Introdução: Sarcopenia e baixa qualidade de vida (QV) são amplamente encontradas entre pacientes em hemodiálise (HD). Nosso objetivo foi verificar se o risco de sarcopenia prediz o nível de QV nesta população. Métodos: A amostra foi formada por 147 pacientes em HD em outubro de 2020 em um único centro de diálise. Dados demográficos e clínicos foram coletados. O risco de sarcopenia foi classificado pelo questionário SARC-F. A QV foi avaliada pela versão brasileira do SF-36. Os escores de QV foram comparados entre pacientes com e sem risco de sarcopenia. A regressão linear multivariada foi realizada para testar o risco de sarcopenia como preditor independente dos escores de QV. Resultados: Havia 62 (42,2%) pacientes classificados como tendo risco de sarcopenia. Comparando os escores de QV entre pacientes com e sem risco de sarcopenia, os escores de 7 dimensões foram significativamente menores entre os pacientes com risco de sarcopenia, exceto aspectos emocionais. O risco de sarcopenia foi um preditor independente de 6 dimensões da QV, exceto para aspectos emocionais e saúde mental. Conclusão: O risco de sarcopenia é um preditor independente de QV entre os pacientes em HD. Nossos resultados apontam para a possibilidade de melhorar a QV dos pacientes intervindo para minimizar o risco de sarcopenia.

Resumo Introdução O conhecimento dos fatores relacionados à perda dentária contribui para o planejamento das ações preventivas realizadas pelas Equipes de Saúde Bucal (ESBs). Objetivo Avaliar o indicador de proporção de exodontia nos municípios do estado de São Paulo e a sua relação com os indicadores socioeconômicos e cobertura das ESBs. Método Estudo ecológico com dados secundários dos 645 municípios do estado de São Paulo do ano de 2012. A variável dependente foi o percentual de exodontia mensurado pelo indicador de proporção de exodontia em relação aos procedimentos individuais realizados pelas ESBs, disponibilizado pelo Sistema de Informação da Atenção Básica. Foram considerados como variáveis independentes a cobertura populacional estimada pelas ESBs, o Produto Interno Bruto (PIB) dos municípios per capita, o Índice de Desenvolvimento Humano (IDH) e o Índice Paulista de Responsabilidade Social (IPRS). Foram aplicados modelos lineares generalizados, avaliados pelo p-valor do teste de Wald, AICC e grau de liberdade. Resultados Apresentaram maior proporção de extrações dentárias as cidades do estado de São Paulo com menor cobertura de ESBs (p < 0,0001), com menor valor de IDH (p < 0,0001) e com maior valor de IPRS (p = 0,0018). Conclusão A baixa cobertura de ESBs e as desigualdades socioeconômicas contribuem para aumentar as extrações dentárias no estado de São Paulo.

Abstract Background Knowledge about factors associated with tooth loss contributes to the planning of preventive actions carried out by Oral Health Teams (OHT). Objective To evaluate the proportion of dental extraction indicator in the cities of the state of São Paulo, Brazil, and its relationship with socioeconomic indicators and coverage of the OHT. Method Ecological study using secondary data from 654 municipalities in the state of São Paulo conducted in 2012. The dependent variable was the percentage of dental extraction measured by the proportion of this indicator in relation to individual procedures performed by the OHT provided by the Primary Health Care (PHC) Information System. The population coverage by the OHT, the per capita Gross Domestic Product (GDP), the Human Development Index (HDI), and the São Paulo Social Responsibility Index (IPRS) of the municipalities were evaluated as independent variables. Generalized linear models, formulated by the Wald test p-value, Corrected Akaike Information Criterion (AICc), and degree of freedom, were applied. Results Higher proportions of dental extraction were found in the municipalities with lower coverage by OHT (p<0.0001), lower HDI value (p<0.0001), and higher IPRS value (p=0. 0018). Conclusion Low coverage by OHT and socioeconomic inequalities contribute to increased proportion of dental extractions in the state of São Paulo.

Abstract Breast cancer is one of the leading types of cancer worldwide, and the search for new treatment options are crucial. Nonsteroidal anti-inflammatory drugs (NSAIDs) -specially ibuprofen and diclofenac-, have shown antitumoral effect against several types of cancer. The synthesis of organometallic compounds has shown significant improvements in pharmacological properties and efficacy of organic molecules. Two zinc II ternary complexes containing the NSAIDs diclofenac and ibuprofen and nicotinamide neutral linker (Nic) were obtained by the two-step solvent metalligand complexation method. The compounds Zn2(Diclof)4(Nic)2 (complex 1) and Zn2(Ibup)4(Nic)2 (complex 2) were tested in breast cancer cell lines (4T1, MCF-7 and MDA-MB-231) to evaluate their cytotoxicity, comparing to ibuprofen and diclofenac as controls. We found that both complex 1 and 2 exerted more than 60% reduction in 4T1 viability at 250µM, and complex 2 decreased cell viability at 250 µM and 137.5 µM in MCF-7 (34.35% and 26.42% reduction, respectively) and in MDA-MB-231 (57.2% and 22.88% reduction, respectively), all compared to controls. Complex 1 was selective only in MCF-7, and complex 2 was selective in both MCF-7 and MDA-MB-231. In summary, our data showed that the cytotoxic effect of complex 1 and 2 is increased comparing to their original NSAID in different breast cancer cell lines, highlighting their potential anti-tumoral activity.

OBJECTIVE: This study aimed to analyze the physical and pulmonary capacities of hospitalized patients with severe coronavirus disease and its correlation with the time of hospitalization and complications involved. METHODS: A total of 54 patients, aged ≥18 years of both sexes, were evaluated 2-4 months after hospital discharge in São Paulo, Brazil. The physical characteristics analyzed were muscle strength, balance, flexibility, and pulmonary function. The K-means cluster algorithm was used to identify patients with similar physical and pulmonary capacities, related to the time of hospitalization. RESULTS: Two clusters were derived using the K-means algorithm. Patients allocated in cluster 1 had fewer days of hospitalization, intensive care, and intubation than those in cluster 2, which reflected a better physical performance, strength, balance, and pulmonary condition, even 2-4 months after discharge. Days of hospitalization were inversely related to muscle strength, physical performance, and lung function: hand grip D (r=−0.28, p=0.04), Short Physical Performance Battery score (r=−0.28, p=0.03), and forced vital capacity (r=−0.29, p=0.03). CONCLUSION: Patients with a longer hospitalization time and complications progressed with greater loss of physical and pulmonary capacities.

Abstract The objective of this study was to report helminth parasite species of Passer domesticus (Linnaeus, 1758) (sparrow) and to analyze infection rates in relation to total length, body mass and sexual gender of hosts. Each of the 100 sparrows caught in the urban area of Pelotas, Rio Grande do Sul, Brazil, was weighed, measured, submitted to euthanasia and necropsied for collection of helminths. The helminths and their respective prevalence were: Synhimantus (Dispharynx) nasuta (2%), Aproctella sp. (1%) (Nematoda), Prosthogonimus ovatus (8%), Eumegacetes sp. (2%), Tanaisia zarudnyi (4%) (Digenea), Choanotaenia passerina (26%) (Cestoda), and Mediorhynchus sp. (2%) (Acanthocephala). The prevalence and mean intensity of infection of the C. passerina between male and female hosts did not present significant differences, and there was no correlation between the abundance of parasite species, body mass and total length of the sparrows. The helminth fauna of P. domesticus has remained the same throughout the propagation of this bird for new geographical areas and ecosystems, with the exception of the nematode Aproctella sp., found for the first time parasitizing this host.

Resumen El objetivo de este estudio fue registrar a las especies de helmintos parásitos de Passer domesticus (Linnaeus, 1758) (gorrión) y analizar los índices de infección en relación al género sexual, peso y tamaño de los hospedadores. Para ello, cada uno de los 100 gorriones capturados en el área urbana de Pelotas, Rio Grande do Sul, Brasil, fue pesado, medido, sometido a eutanasia y a uma necropsia para la recolección de helmintos. Los helmintos y sus respectivas prevalencias fueron: Synhimantus (Dispharynx) nasuta (2%), Aproctella sp. (1%) (Nematoda), Prosthogonimus ovatus (8%), Eumegacetes sp. (2%), Tanaisia zarudnyi (4%) (Digenea), Choanotaenia passerina (26%) (Cestoda), y Mediorhynchus sp. (2%) (Acanthocephala). La prevalencia e intensidad media de la infección por C. passerina entre hospedadores machos y hembras no presentó diferencia significativa, así como no hubo correlación entre la abundancia de esta especie, su masa corporal y la longitud total de los gorriones. La helmintofauna de P. domesticus se ha mantenido a lo largo de la propagación del ave a nuevas áreas geográficas y ecosistemas, con excepción del nemátodo Aproctella sp., encontrado por primera vez parasitando a dicho hospedero.

Resumo Analisa o caderno de laboratório, espécie documental produzida a partir dos registros da atividade científica, e seus diferentes tipos, bem como seu uso e seus formatos na pesquisa biomédica. A reflexão se apoia na pesquisa em andamento sobre os documentos dos laboratórios do Instituto Oswaldo Cruz e na relação destes com os conceitos, métodos, técnicas e práticas da arquivologia. A metodologia compreendeu, além de pesquisa bibliográfica, a aplicação de questionário, entrevistas e diagnóstico dos arquivos, nos quais se buscou identificar a gênese documental, as espécies/tipologias presentes e as práticas de manutenção e uso dos registros provenientes de 15 laboratórios. Discute ainda o caderno aberto de laboratório, formato disseminado no âmbito do debate contemporâneo da ciência aberta.

RESUMO Objetivo: Acompanhar a densidade mineral óssea (DMO) e a composição corporal, ao longo de seis anos, em idosos corredores de longa distância. Métodos: analisamos os prontuários médicos de um grupo de atletas idosos, corredores de longa distância, participantes do Grupo de Ortogeriatria do IOT-HC-FMUSP, e reunimos todos os atletas que tiveram a DMO avaliada no ano de 2001 e de 2007, sendo destes, 11 prontuários selecionados. Critérios de inclusão: ser corredor de longa distância; não parar de correr ao longo dos seis anos e ter os dois exames de DMO e composição corporal avaliados. A composição corporal foi avaliada por meio de densitometria óssea, com uma dupla energia de absorção de raios-X (DEXA), em um aparelho LUNAR-DPX. Resultados: Ao longo dos seis anos, a composição corpórea se manteve estável, havendo apenas um aumento significante na gordura expressa em (%) (p=0,003). Conclusão: A corrida de longa distância parece conservar a DMO de idosos corredores, porém com aumento de gordura. Nível do Evidência II; Estudos prognósticos - Investigação do efeito de características de um paciente sobre o desfecho da doença.

ABSTRACT Objective: To evaluate bone mineral density (BMD) and body composition over a six-year period in elderly long-distance runners. Methods: We analyzed the medical records of elderly athletes who were long-distance runners, were participants of the IOT-HCFMUSP Orthogeriatric Group, and had their BMD evaluated between 2001 and 2007; of these athletes, 11 were included in the study. Inclusion criteria: athletes should be long-distance runners, should not stop long-distance running during the six-year period, and should have undergone BMD and body composition evaluations. Body composition was evaluated using bone densitometry with dual-energy X-ray absorptiometry with a Lunar-DPX device. Results: Over the six-year period, body composition remained stable, but there was a significant increase only in the fat percentage (p = 0.003). Conclusion: Long-distance running may maintain BMD but may lead to an increase in the fat percentage in elderly runners. Level of Evidence II; Prognostic Study - Investigating the Effect of Patient Characteristics on Disease Outcome.

Resumo Objetivo O objetivo deste trabalho é caracterizar, modelar espacialmente e realizar o zoneamento do ambiente aquático no reservatório da UHE de Curuá-Una, no estado do Pará, na Amazônia brasileira. Métodos Os dados foram coletados em 77 pontos amostrais distribuídos em 20 transectos no reservatório de Curuá-Una, no mês de novembro de 2016. A obtenção dos dados ocorreu através de formulários descritivos da paisagem, aferição de variáveis limnológicas, batimetria e georreferenciamento. Para descrever e modelar os padrões espaciais para os Proxies limnológicos foi utilizada a análise geoestatística com o ajuste de semivariograma, e interpolação através da Krigagem ordinária para gerar os mapas. Para determinar o grau de associação dos Proxies de paisagem optou-se pela Análise de Correspondência (CA) e para relacionar os Proxies da paisagem com os Proxies limnológicos, realizou-se uma Análise de Correspondência Canônica (CCA). Resultados Os resultados da análise dos Proxies limnológicos mostrou que as variáveis apresentaram distribuição normal pelo teste de Shapiro-Wilk (5%) exceto transparência e temperatura. A maioria das variáveis obteve patamar bem definido e boa análise geoestatítica. Houve prevalência dos modelos de ajustes gaussiano e esférico. Observou-se a existência de diferentes zonas na distribuição das variáveis limnológicas no eixo longitudinal do reservatório. A CA mostrou um gradiente local curto das variáveis que caracterizam efetivamente a paisagem e a interferência humana. Os dois primeiros eixos da CCA explicaram 61,17% da variabilidade dos dados. As assinaturas limnológicas explicaram 42,3% da variabilidade, com alta correlação entre os Proxies de paisagem e os ambientais em ambos os eixos. Conclusões Este tipo de abordagem deve ser útil para o gerenciamento de bacias hidrográficas brasileiras, principalmente na Amazônia, foco para a construção de inúmeras hidrelétricas, pois pode indicar o estado limnológico e ambiental e proporcionar uma visão mais clara desses ambientes.

Abstract Aim The objective of this work is to characterize, spatially model and to perform the zoning of the aquatic environment in the Curuá-Una HPP reservoir, in the state of Pará, in the Brazilian Amazon. Methods The data were collected from 77 sampling points distributed over 20 transects in the Curuá-Una reservoir, in November 2016. The data were obtained through descriptive templates of the landscape, and assessment of limnological, bathymetry and georeferencing variables. To describe and model spatial patterns for the limnological Proxies, geostatistical analysis was used with semivariogram fitting, and interpolation using Ordinary Kriging to generate the maps. To determine the degree of association of the landscape Proxies, Correspondence Analysis (CA) was chosen, and to relate the landscape Proxies with the limnological Proxies, Canonical Correspondence Analysis (CCA) was carried out. Results The results of the analysis of the limnological Proxies showed that the variables presented normal distribution according to the Shapiro-Wilk test (5%) except for transparency and temperature. Most of the variables obtained well-defined, level and good geostatistical analysis. There was a prevalence of gaussian and spherical adjustment models. Different zones in the distribution of the limnological variables in the longitudinal axis of the reservoir were observed. The CA showed a short local gradient in the variables, which effectively characterizes the interface of landscape and human. In Figure 5, the first two axes of the CCA showed 61.17% of the data variability. The limnological signatures showed 42.3% of variability, with high correlation between the landscape Proxies and the environmental Proxies in both axes. Conclusions This type of approach should be useful in managing Brazilian river basins, especially in the Amazon, a focus for the construction of numerous hydroelectric dams, as it can indicate the limnological and environmental state and provide a clearer view of these environments.

Resumo O objetivo deste estudo foi relatar duas espécies de ácaros nasais parasitos do sistema respiratório de Passer domesticus (Linnaeus, 1758) (pardal) e seus respectivos índices parasitológicos. Para isso, foram examinados ao estereomicroscópio, cavidade nasal, traqueia, pulmão e sacos aéreos de 100 pardais capturados na área urbana de Pelotas, Rio Grande do Sul, Brasil. Sternostoma tracheacolum Lawrence, 1948 ocorreu na traqueia e/ou pulmão de 13 aves (13%) com intensidade média de 6,7 ácaros/hospedeiro infectado e Ptilonyssus hirsti (Castro & Pereira, 1947) na cavidade nasal de um único pardal (1%), não havendo coinfecção. A prevalência e intensidade média de infecção por S. tracheacolum entre hospedeiros machos e fêmeas não apresentou diferença significativa. Este relato caracteriza o primeiro registro de S. tracheacolum parasitando P. domesticus no Brasil e de P. hirsti em pardais no RS, Brasil, e seus respectivos índices de infecção.

Abstract We report the occurrence and infection parameters of two species of nasal mites in Passer domesticus (Linnaeus, 1758) (house sparrow). Nasal passages, trachea, lungs, and air sacs of 100 house sparrows captured in an urban area at the city of Pelotas, State of Rio Grande do Sul, southern Brazil, were examined with a stereomicroscope. The mite, Sternostoma tracheacolum Lawrence, 1948 was present in the trachea and/or lungs (or both) of 13 birds (13%) at a mean intensity of 6.7 mites/infected host. Ptilonyssus hirsti (Castro & Pereira, 1947) was found in the nasal cavity of 1 sparrow (1%); coinfection was not observed in this bird. There was no significant difference in the prevalence and mean intensity of infection of S. tracheacolum between male and female birds. To our knowledge, this is the first study reporting the occurrence of S. tracheacolum in P. domesticus in Brazil and the presence of P. hirsti in P. domesticus from Rio Grande do Sul, Brazil. This is the first survey to provide the infection parameters of each of these mites in house sparrows.

RESUMO Este artigo aborda, em perspectiva histórica, a atuação do Departamento Administrativo do Serviço Público (Dasp), criado em 1938, durante o Estado Novo, com a tarefa de empreender um projeto modernizador capaz de viabilizar a separação entre política e administração no contexto de forte centralização do poder na Presidência da República. Considera que o Departamento foi agente promotor de ações que configuram a gênese da fase moderna do conhecimento arquivístico, traduzido em técnicas, métodos e práticas da arquivologia e destinado a encontrar lugar na administração pública reformada. Apresenta, no contexto da reforma administrativa do governo Getúlio Vargas, essa fase de institucionalização da arquivologia que só se pode compreender se forem analisadas suas relações com as áreas emergentes da biblioteconomia e documentação contempladas no projeto modernizador do novo órgão. O artigo se propõe a apontar a institucionalidade dos arquivos e da arquivologia alcançada ao fim do período estudado. Para tanto, utiliza como principal fonte de pesquisa os documentos do fundo Dasp depositado no Arquivo Nacional, no Rio de Janeiro.

ABSTRACT This paper adopts a historical perspective to analyze the activities of the Departamento Administrativo do Serviço Público (Civil Service Administration Bureau, DASP), created during the Brazilian Estado Novo (New State) regime in 1938. DASP was responsible for implementing an innovative project, separating administration and politics, during a period when power became concentrated on the Brazilian presidency. It argues that the bureau was a disseminator of actions that gave birth to the modern phase of archival knowledge, translated into the techniques, methods and practices applied by archival science, and designed to find its own place in the reformed public administration. It presents the institutionalizing phase of archival science within the context of the administrative reforms of the Getúlio Vargas government. This phase can only be understood by investigating its relations to the emerging fields of librarianship and documentation, both also part of DASP’s innovative project. The paper aims to identify the institutionality of archives and archival science achieved at the end of the period under study. This aim in mind, it uses the documents in DASP’s archives held at the National Archives in Rio de Janeiro as the main source of research.

Co and Zn ferrites with general formula CO1-XZnXFe2O4 (x = 0; 0,2 and 0,8) were synthesized by combustion reaction method, using urea as fuel. The structure of inverse-spinel-type ferrite were characterized through XRD using Rietveld refinement method to identify, quantify phases and determine lattice parameters. The crystallites had mean size of 37,33 nm, 43,66 nm and 51.88 nm with the increment of Zn2+, respectively. Samples were sintered in a resistive oven at 900 °C for 3 hours. Analysis by SEM indicated that the particles have irregular sizes and high concentration of open pores. The magnetic properties were measured using a vibrating sample magnetometer (VSM), through which a decrease in the magnetization variation was observed as the non-magnetic Zn2+ concentration increases. The permittivity and loss tangent were determined using vector network analyzer equipment, permittivity increases with the increase of zinc concentration and the tangent loss measurements were small for all ferrites synthesized in this work.