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Introduction: Bioelectrical impedance vector analysis (BIVA) is a non-invasive and low-cost strategy. The methods used to assess malnutrition in patients undergoing HD are still a challenge. The aim of the present study was to compare BIVA to 7-Point Subjective Global Assessment (7-point SGA) to identify malnutrition. We also investigated the sensitivity and specificity of the previously proposed cutoffs point for BIVA parameters. Methods: Patients of both sexes, over 20 years of age, on HD treatment were included. Anthropometric parameters, laboratory data, and bioelectrical impedance analysis (BIA) were evaluated. Values of resistance (R) and reactance (Xc) obtained by mono-frequency BIA were normalized to body height (H) to generate a graph of the bioimpedance vector with the BIVA software. The analysis of the area under the receiver operating curve ROC (AUC) was performed. Results: Among the included 104 patients, the mean age was 51.70 (±15.10) years, and 52% were male. The BIVA had a sensitivity of 35% for diagnosing malnutrition. The specificity of BIVA for identifying the well-nourished patients was 85.7%. The diagnostic accuracy between the BIVA and 7-point SGA was AUC=0.604; 95%CI 0.490-0.726, higher than the previously established cutoff values (AUC=0.514; 95%CI: 0.369-0.631). The 95% confidence ellipses did not overlap (p<0.05). Conclusion: Our study showed low accuracy of BIVA for diagnosing malnutrition using a 7-point SGA as a reference standard. However, it is a complementary method for assessing nutritional status as it provides data on cellularity and hydration, which are important aspects for the HD population.

Na disciplina de história do ensino fundamental é essencial a atenção dos alunos para compreender e absorver os conhecimentos transmitidos. No mundo de hoje as crianças ficarem sentadas, quietas e concentradas, é um problema, ainda mais quando ocorrem distrações durante a aula. Este trabalho visa apresentar um protótipo do software CLIO, que utiliza a Realidade Virtual (RV) como um mecanismo para auxiliar os professores no ensino de História com alunos que possuem TDAH. Desse modo, busca-se minimizar os impactos negativos do transtorno através de um tour num mundo tridimensional (3D) que retrata um momento histórico, e,acompanhado de uma personagem chamada Clio, a deusa grega da História, que explicará um assunto relacionado a disciplina, além de interagir por meio de perguntas, com pontuação a respeito do assunto, para verificar se o aluno estava prestando atenção na explicação do conteúdo e para instigá-lo a aprender mais, tornando-o o protagonista da história.