Past Issue

Promoting bus electrification through policy mechanisms: a case study in large cities in Brazil

Ambient air pollution is one of the main global health risks, causing significant excess mortality and loss of life expectancy LLE, especially through cardiovascular diseases.Diesel burning produces air pollutants such as carbon monoxide (CO), NOx, benzene, sufur oxides (SOx), 1,3-butadiene and primary particulate matter PM10. These pollutants increase the incidence of bronchitis, asthma, and pneumonia for at-risk populations, especially in large cities.The objective of this paper is to propose a new policy mechanisms approach to promote lithium battery buses in large cities in Brazil.

Blockchain and tcp: a comparative approach

In this article we will show that the characteristics and functionalities of a blockchain data structure, although developed in the application layer, are similar to those of the Transmission Control Protocol (TCP) in the Transport Layer. The TCP protocol is characterised by a point-to-point connection, reliable delivery, through validation mechanisms with confirmation and sequencing and retransmission. These characteristics are present in a blockchain, either in the form of software components or software and hardware arrangements.

Direct organogenesis and in vitro regeneration of plants of piper marginatum

Piper marginatum, popularly known in Brazil as Caapeba, is a native Amazonian plant of shrubby size, traditionally used for its active principles that act as therapeutic agents in wounds and pathologies. The objective of this work was to establish a protocol for the in vitro propagation of this species from leaf explants. For this, leaves were collected from two-year-old plants kept in a greenhouse at Embrapa Rondônia, in Porto Velho, Brazil.

Concrete block with incorporation of bssf steel slag: alternative for environmentally appropriate disposal of a waste from the steel industry

The incorporation of waste generated by the steel industry in cementitious components can contribute regionally, in a sustainable way, to a significant reduction in environmental liabilities. This study aimed to analyze the physical and mechanical characteristics of concrete blocks without structural function manufactured with BSSF steel slag as a replacement for natural aggregates. Partial substitutions of 20, 40, 60, 80% of the natural aggregates were made by artificial ones in the production of the blocks.

Determinant cultural dimensions between business strategies and the development of project portfolios in multinational companies

The objective of this work is to identify the main dimensions and basic characteristics of Culture within organizations. In order to determine these dimensions and characteristics, a literature review was carried out with the keywords Cultur *, Business Strateg *, Portfolio Project Management, Mutinational compan *, subsequently using clusters and co-citations analysis to identify the authors and relevant topics, and a further analysis of the bibliographic references of the tests work.

Efeitos da crise sanitária de covid-19 no meio ambiente: uma resenha crítica

O surgimento de doenças com fatores ambientais pode estar associado com a invasão humana em áreas selvagens, gerando o aumento de contato entre as espécies e o consequente transbordamento de patógenos que habitavam exclusivamente na vida selvagem para animais domésticos e seres humanos, sendo essa uma das explicações da propagação do SARS (Síndrome Aguda Respiratória Grave) e do vírus causador da COVID-19. A pandemia da COVID-19, trouxe à tona discussões da relação entre a degradação ambiental e as doenças infecciosas emergentes de origem zoonótico.

Autismo e acompanhamento da puericultura: estudo reflexivo

A puericultura é o acompanhamento da criança, realizado na atenção básica, mediante um cuidado integral e humanizado. Crianças com autismo, devem receber este acompanhamento, juntamente com a atenção especializada, visando um cuidado compartilhado e efetivo. Pesquisa reflexiva, com abordagem qualitativa e descritiva, realizada no ano de 2021, que buscou integrar publicações, resumos de congresso, teses e dissertações, livros, revisões integrativas e sistemáticas, artigos originais, relatos de experiências, e outro materiais de leitura, que estivessem relacionados ao tema do estudo.

The causes of collapse of retaining structures: a case study of a retaining wall at alphaville in nova lima minas gerais

Retaining structures are designed to stabilize a soil mass, resisting earth and/or water thrusts, structural loads and any other stresses induced by adjacent structures or equipment. There are several types of containment that are designed for different needs and purposes, one of which is the retaining wall. The retaining wall is one of the most used containment methods in Brazil. These are concrete blocks that work together with steel bars, having different characteristics depending on your technical analysis, which can be by gravity or by bending.

A inserção da mulher no mercado de trabalho

O objetivo desta pesquisa foi a de conhecer a história da inserção feminina no mercado e sua evolução, identificar as dificuldades e conquistas femininas durante o processo de inserção no mercado de trabalho e analisar as desigualdades e diferenças salariais por gênero. A pesquisa foi realizada com mulheres moradoras de Santos. Para a coleta de dados utilizou-se um questionário on-line com 7 perguntas fechadas.