Past Issue

The present work is aimed at applying Real Options Theory for the analysis of an investment project related to the removal of the Pedral do Lourenço rock formation, on the Tocantins River waterway in Brazil. A discussion was made as to the merits of this approach for the evaluation of investment projects by decision makers and by incorporating managerial flexibility, especially with regards to the use of public funds, as was the case analyzed by this article.

High-biomass sorghum is a crop that has great potential as a source of biomass for energy generation, due to its high productivity, drought tolerance and for being mechanizable. Thus, culture is an alternative to vegetable biomass to be used in electric energy cogeneration processes. The objective of the work was to develop multivariate calibration models, using the near infrared spectroscopy, for analysis of gross calorific value, moisture, and ash content in high-sorghum biomass.

Objetivo: Revisar a literatura sobre as tecnologias móveis para a promoção do estilo de vida saudável em adolescentes. Fontes de Dados: Revisão integrativa realizada com sete artigos selecionados das bases de dados: Literatura Latino-americana e do Caribe em Ciências da Saúde; Medical Literature Analysis and Retrieval System Online; Science Citation Indexes - Web of Science; Literatura Internacional em Ciências da Saúde e publicados nos últimos dez anos.

No complexo do Cerrado, a diversidade de espécies de animais e plantas está associada a variedade de ambientes, e a heterogeneidade espacial (a variação dos ecossistemas ao longo do espaço) seria determinante para a ocorrência de um grande número de espécies. Entre as fitofisionomias se destacam as formações savânicas e florestais, e o conhecimento das funcionalidades ecológicas destas áreas é importante para formulação de estratégias de conservação.

In shallow waters, traditional bathymetric methods such as acoustic and LIDAR (Light Detection And Ranging) systems are accurate; however they are constrained by high operational costs, logistic difficulties and limited spatial coverage. Shallow water depth estimation using passive remote-sensing method is an attractive alternative as it provides a time- and cost-effective solution to water depths estimation.

Electrical energy is a very precious asset for contemporary society because the social reality is directly linked to devices that are activated by this type of energy. This study traces an approach to promote the analysis of energy distribution in the voltage levels of an electrical system in a company in the Industrial Pole of Manaus (PIM) making a statistical approach to the quality of the energy transmitted by this system and the quality factor.

Este estudo teve como objetivo mapear as publicações mundiais sobre a temática Serious games in education e Gamification in education. Para tanto, foi realizada uma pesquisa bibliométrica na base de dados Web of Science, em períodicos publicados no período de 2015 a 2020. Os termos utilizados para pesquisa foram “Serious games in education” e “Gamification in education”, e deveriam constar no título do artigo. As buscas resultaram em 81 registros sobre a temática Serious games in education e 163 registros sobre Gamification in education.

The orchid Vanilla planifolia (Asparagales: Orchidaceae) is the best known and most economically important species of Orchidaceae in the world, and is widely used in the food, cosmetic and pharmaceutical industries. Commercial crops of this plantsuffer from constant attacks by beetles in southern Bahia, Brazil. This study reports the first occurrence of the weevil Montella sp. Bondar, 1948 (Coleoptera: Curculionidae) as a pest and describes and characterizes damage from this insect in commercial plantations.

Studies have shown that robust returns on assets and efficient resource management are reflections of corporate competence, however, when management negates the essence of environmental justice and protection, in course of business operations, the going concern of such entity is greatly endangered. There is an ongoing debate concerning the uncertainties, environmental injustice, and non-compliance attitude of the majority of environmentally sensitive companies particularly in the upstream sector.

The consolidation of new technologies, based on Electrical and Electronic Engineering, such as the application of sensors like nodes in the internet of things, the distribution of processing systems, in networks, such as cloud computing, among others, resulted in the generation of a quantity data, which, in the last two years, corresponds to almost all the data generated by humanity. Data storage and processing in a cloud environment can bring some intrinsic limitations, such as high latency and low availability events.