Past Issue

Base-catalyzed transesterification of vegetable oils and fats is one of the most used technologies for biodiesel production globally. Several alternatives have been studied to enable the use of acidic and cheap raw materials for biodiesel production, but the initial investments are usually high due to the need for equipments made up of special steels. The present work was aimed at evaluating the corrosion resistance of three Brazilian steels in biodiesel with different acidity extents.

It is reasonable to consider that food production and environmental preservation, and not just any of them in isolation, are prerequisites for the very existence of the human species. From this perspective, it is evident that any strategy for environmental preservation must necessarily also consider the strategy of food production and vice versa. The challenge for technology-based companies is to create new solutions that contribute to an increase in food production, reducing the application of inputs, and without adding new areas to agricultural production.

A pesquisa teve o objetivo de analisar a aprendizagem da análise combinatória (AC) entre estudantes do programa de Educação de Jovens e Adultos (EJA) que apresentaram dificuldades de aprendizagem, em particular, buscando identificar e observar aqueles com indícios de discalculia (ID) que é um distúrbio específico de aprendizagem da matemática. O trabalho foi desenvolvido em sala de aula com a aplicação de um teste com questões matemáticas básicas que permitem avaliar as habilidades aritméticas e identificar os alunos com ID.

Analisar a percepção da equipe de enfermagem sobre sua saúde mental. Método: Estudo descritivo e exploratório, de abordagem qualitativa, desenvolvido em um Hospital Psiquiátrico de Teresina, Piauí, Brasil. Foram entrevistados 17 profissionais da equipe de enfermagem psiquiátrica. A coleta de dados foi realizada no mês de setembro de 2018 por meio de um roteiro semiestruturado que compreendeu questões pertinentes ao tema e a análise de conteúdo foi fundamentada nos referenciais propostos porMinayo.

Relato de experiência de uma mobilidade acadêmica realizada na França, através do Mestrado Profissional em Tecnologia e Inovação em Enfermagem da Universidade de Fortaleza e apoio do Conselho Federal de Enfermagem. Estudo do tipo relato de experiência vivenciada no período de novembro de 2019 a janeiro de 2020, no Departamento de Profissões Paramédicas da Universidade de Rouen-Normandia, França.

Resumo: A elaboração desse seguinte estudado está relacionada na percepção de adolescentes frente a sexualidade e todos os fatores complexos que ela apresenta e temas que entram em foque como uso métodos contraceptivos, gravidez precoce, IST, com foco principal no HPV suas causas e seus métodos profiláticos como a vacinação. Metodologia: Este estudo trata-se de uma revisão da literatura, em que se realizou um processo investigação dos problemas enfrentados pelos adolescentes acerca da sexualidade.

Environmental development has been a debate among academic and governmental actors. However, only recently has the theme gained importance due to the ambitious goals imposed by the green agreement of the EU. Instead, until recently, not much effort has been demonstrated towards a more sustainably globalized economy. This scenario seems to have gradually changeddue tonew sustainable values incorporated intodemands derived frommore environmentally conscious and globalized consumers, especially among those from developed economies.

Introduction: Electronic protocols for prospective data collection tend to stand out with regard to the quality of the results obtained. Standardized and computerized data are considered reliable, highly accurate, and of great scientific value. With the creation of computerized protocols in the various diseases of the digestive system and its incorporation into the Integrated Electronic Protocols System (SINPE©), it became necessary to verify the functioning, applicability, and validation of the system.

Aim: the purpose of the present pilot study was to verify the effects of astep goals pedometer interventionon physical activity level and cardiometabolic profile in obese adolescents. Methods: The intervention was designedusing a pilot randomized controlled trial with 19 adolescents. The 8-week intervention included following components: (i) pedometer for physical activity self-monitoring; (ii) individualized goal setting; (iii) parent text messages for social support. The primary outcome was physical activity (PA) and secondary outcomes included cardiometabolic profile.

Objective: to quantify scientific studies involving blockchain technology in airport logistics. Methodology: quantitative bibliometric study, to obtain information in one of the main databases, the Web of Science, through the CAPES Journal Portal. Method: The publications related to the theme from 2000 to 2020 were collected and analyzed, looking for publications that contained variants of the terms “Blockchain” and “Airport Logistics”, to cover the largest quantity of publications related to the themes.