Matemática financeira na formaçâo de professores

O estudo de Matemática Financeira é altamente motivador e fundamental para formar cidadãos mais críticos. Mas, quando abordada na Escola Básica, a Matemática Financeira enfoca apenas porcentagem e fórmulas de juros simples e compostos, sem aplicações que envolvam problemas do dia-a-dia. A pesquisa relatada neste trabalho indica que o professor da Escola Básica não tem, em geral, a formação necessária para abordar a Matemática Financeira de forma eficaz em suas aulas. São analisadas soluções apresentadas por professores e futuros professores para um problema real, do pagamento do imposto IPVA, mostrando os tipos de erros cometidos. Como consequência dessa pesquisa, foi desenvolvida uma proposta prática e visual para auxiliar o professor no ensino de Matemática Financeira, que incentiva a representação das situações do cotidiano no eixo das setas, permitindo a compreensão da variação do dinheiro no tempo

Preparando para a aprendizagem de cálculo: funcôes e geometria no ensino médio

Professores de instituições de Ensino Superior, públicas e privadas, relatam grandes dificuldades dos alunos na primeira disciplina de Cálculo. Os altos índices de evasão e repetência têm motivado diversas pesquisas, que buscam as causas e as prováveis soluções para esse problema. O objetivo deste trabalho, desenvolvido no âmbito do Projeto Fundão (Instituto de Matemática da Universidade Federal do Rio de Janeiro), é investigar como ocorre a transição do Ensino Médio para o Superior e empreender ações que otimizem esses índices. Foram aplicadas atividades investigativas com calouros de duas universidades particulares para levantar as principais dificuldades. Os resultados indicam a possibilidade de minimizar as dificuldades em Cálculo por meio de uma abordagem adequada dos tópicos de funções e de geometria no Ensino Médio

Library Toolkit : pathophysiology--dentistry

A case study describing the creation of a library toolkit for a pathophysiology course for Columbia dental students

First person – Vincenzo Torraca

First Person is a series of interviews with the first authors of a selection of papers published in Disease Models & Mechanisms, helping researchers promote themselves alongside their papers. Vincenzo Torraca is first author on ‘ Transcriptional profiling of zebrafish identifies host factors controlling susceptibility toShigella flexneri’, published in DMM. Vincenzo conducted the research described in this article while he was a Marie Skłodowska-Curie Postdoctoral Fellow at Imperial College London, UK and an ISSF (Institutional Strategic Support Fund)-Wellcome Fellow at the London School of Hygiene and Tropical Medicine, UK, where most of the work was carried out in Prof. Serge Mostowy's lab. He has just started his own group at King's College London, investigating host-pathogen interactions and antimicrobial resistance for globally relevant bacterial pathogens, such as Shigella and E. coli, using zebrafish as an in vivo model

Body composition and cardiovascular risk factors in pretransplant hemodialysis patients

BACKGROUND: Obesity, hyperlipemia and cardiovascular complications contribute to a significant proportion of morbidity and mortality of renal transplant patients and have negative effects on renal survival. Aim of the present study was to evaluate the main abnormalities in body composition and the prevalence of some cardiovascular risk factors in a population of hemodialyzed (HD) patients awaiting renal transplantation. METHODS: We studied 151 HD patients, all included in a waiting list for renal transplantation, 97 males and 54 females, with mean age 47.4+/-12 years. Patients were divided into three groups according to their body mass index (BMI) (kg/m2): 18.5 to 24.9 (normoweight, NW); 25.0 to 29.9 (overweight, OW); > or =30 (obese, OB). The body composition measurements were obtained the day after the mid-week HD session using bioelectrical impedance analysis (BIA). RESULTS: We found that 47 patients were NW (31%), while 56 were OW (37%), and 48 were OB (32%). BIA-measured body cell mass was (BCM) significantly increased in the OW as compared with the NW group (P<0.001), but, of note, no significant difference was found in OB group in comparison with the OW. Total cholesterol and triglycerides plasma levels were significantly elevated in OW and OB patients with respect to NW (P<0.05) and an increased prevalence of diabetes was seen in OB patients (NW: 6%, OW: 5%, OB: 12%). CONCLUSIONS: These data show that a large proportion of patients awaiting renal transplant are overweight or obese and a consistent part of them have other cardiovascular risk factors associated. Furthermore, obese HD patients have a BCM lower than predicted on the basis of BMI and show an altered metabolic profile. A better understanding of the characteristics of patients included in the renal transplant waiting list is crucial in order to design prospective studies that aim to define the proper risk profile for the selection of patients

Forensic Psychology: critical reflections on emerging demands and professional requirements

As demandas pelo trabalho de psicólogos nos tribunais de justiça brasileiros têm motivado procura por formação específica, acarretando debates sobre atribuições e limites éticos. Nesse artigo temos por objetivo apontar, a partir de breves discussões teóricas e críticas acerca de procedimentos que envolvem a atuação de psicólogos em casos de violência do-méstica contra mulheres e de violência sexual contra crianças, como tais conhecimentos vêm sendo solicitados nas provas de concursos para psicólogos de diferentes tribunais de justiça. Para esse fim, avaliamos os certames que ocorreram em diversos estados brasileiros no período compreendido entre 2006 a 2010. A comparação do material evidenciou descom-passo entre o conhecimento exigido nos processos seletivos e as discussões teóricas a res-peito do trabalho de psicólogos jurídicos no que tange a esses temas.The demand for psychologists in the Brazilian courts have caused the search for specific training, leading to discussions about ethical limits and their responsibilities in this type of their professional work. In this article we aim to point, from brief theory points to critical discussion on procedures involving the role of psychologists in cases of domestic violence against women and sexual illegal behavior against children, if these contents are required in working abilities for psychologists, in different courts of justice in Brazil. To this pur-pose, we evaluated its requirements that occurred in several states from 2006 to 2010. Comparison of the data collected leads to a mismatch between the theoretical knowledge required in selection processes and the discussions about the work of forensic psychologists in courts

Lectures on Materials Science for Architectural Conservation

Based on a lecture course, presents the scientific theory of the structure of building materials, metals, natural and synthetic polymers, and silicates, silanes, and silicones; their properties, deterioration, and conservation; and use in conservation