Physical Sciences and Engineering

Plants are an essential source of molecules of interest capable of responding to a number of conditions including degenerative diseases mainly due to oxidative stress and those caused by micronutrient deficiencies. In Congo and everywhere else, man has always used natural resources to treat his ailments. Plants used in traditional medicine include T. conophorum, P. glabra and P. macrophylla. The methodology used in this work, based on qualitative research of chemical families, allowed us to identify terpenoids in T. conophorum. P.

Para começar este trabalho é necessário voltarmos ao início da história do Brasil (em meados de 1500). Para que, a partir dessa data, possamos de maneira simplificada dar um passeio pelos acontecimentos, com a finalidade de demonstrar: quando, como e por que surgiu o trabalho escravo.

Drying is a most important method to reduce the moisture content from product to increase its shelf-life. Now a day, drying of agricultural products has great attention. To avoid the problems encountered in traditional methods of drying of agricultural products, tray dryers are used. The experiment was conducted to investigate the drying behavior of Cauliflower by using a tray dryer so that to make its mathematical modeling using exponential and linear model. Blanching treatment was applied to cauliflower samples, which were dried at 500C, 600C and 700C temperatures in a tray dryer.

Em tempos de escassez de recursos, todos os processos manufatureiros devem ser minuciosamente mapeados e controlados, pensando em austeridade e eficiência na utilização de insumos, melhoria contínua nos processos e aplicação de inovações tecnológicas.

Brazil is one of the countries with the largest agricultural production in the world, consequently, it generates large amounts of agro-industrial residues that are used as biomass in the production of second-generation ethanol, a renewable energy alternative capable of replacing fossil fuels. The objective of this work was to study the effect of diluted acid hydrolysis in different types of lignocellulosic residues and the production of 2G ethanol from these hydrolysates using different fermenting microorganisms.

This study investigates the role of Energy Management Systems (EMS) in achieving carbon neutrality in urban environments. Through a comprehensive examination of five real-world case studies spanning cities such as Barcelona, London, Songdo, Singapore, and Copenhagen, the study explores the opportunities, challenges, and implications of EMS integration for urban sustainability. Key themes emerging from the analysis include the social, economic, and environmental benefits of EMS implementation, barriers to widespread adoption, and critical success factors for effective integration.

Multigrade teaching and nucleation, although distinct in approach, play fundamental roles in students' academic development. In multigrade teaching, the emphasis is on personalized education, vital to meeting individual needs in a diverse environment. Interaction in classrooms with students of different ages creates a flexible environment, allowing educators to adjust their practices to encompass varied learning styles.

“The Infant mortality is a crucial indicator of the health and well-being of a population. It refers to the number of deaths of children under one year of age in relation to total births during a given period, usually expressed as a rate per 1,000 live births. Objective: to carry out a comparative analysis of the infant mortality profile between the municipality of Blumenau/SC and the state of Santa Catarina, using data from the National Information Systems from 2015 to 2020. Methods: Quantitative data located in the national information systems were used.

This paper presents mathematical model on the effect of parameters on passenger demand on the train transport from Dar es Salaam to Moshi - Arusha Route. Methodology: Numerical simulations were used to demonstrate the impact of parameters on passenger demand. Findings: The results shows that increase of extra effort of selling tickets and availability of transport to the train station and from the train station to the passengers’ destinations S, ratio of change of passenger demand and change of train capacity r, number of coaches with service improvement Ca will increase passenger demand.

In line with the European Energy Performance of Building Directive (EPBD), this paper aims to calculate the cost-optimal energy performance of a residential building in southern Europe, more precisely in Portugal, taking into consideration thermal and lighting (daylighting and artificial lighting) refurbishment solutions. The economic calculation method used considers the initial investment costs, the running costs (including annual maintenance costs, operational costs, energy costs and periodic replacement costs), greenhouse gas emissions costs and disposal costs.