Physical Sciences and Engineering

Trabalho e gerações: qual o impacto do fenômeno da longevidade no mercado de trabalho?

O presente presente artigo, resultante do Trabalho de Conclusão do Curso (TCC) de Especialização em Gerontologia da primeira autora, orientado pela segunda, pretende explorar as contradições existentes entre os estudos do desenvolvimento no processo do envelhecimento, as pesquisas sobre a demografia no Brasil e no mundo, e qual o impacto e desafios do aumento da população de longevos no mercado de trabalho.

Factors affecting pastoral sustainable livelihood: the case of borana, southern Ethiopia

The purpose of this study is borana pastoralist livelihood basically driven by natural and human-made stun. In this way, it is critical to evaluate the variables affecting the borena livelihood collectively, and give Approach suggestion for concerned government and worldwide organizations. The main objective of study is to assess the factors affecting the sustainable livelihood of borana pastoralists. This study especially focuses on drought, bush encroachment, resource base shrinkage, customary institution, and development intervention policy.

Manufacture and characterization of aa6061 aluminum alloy metal matrix composites with ceramic particulate reinforcement

The work’s main objective was the manufacture of an AA6061 aluminum metal matrix composite reinforced with ceramics reinforcements of: aluminum oxide, silicon carbide, aluminum nitride and silicon nitride, through the powder metallurgy technique. The powders were subjected to high energy milling in a SPEX type vibrating mill. Thereafter, a cold uniaxial compactation was made and then the compacts were hot extruded. The powders were subjected to characterization using X-ray diffraction and laser diffraction granulometry.

Economic viability of streambank stabilization work with nature-based solutions applied to a pipeline stream crossing in South America

Pipelines are critically essential transportation infrastructures in most nations since they are essential to both standards of living, and economies. Traditional streambank stabilization in pipelines river crossings is carried out with civil engineering techniques. Environmental concerns have increased the demand for low environmental impact techniques that value the ecological characteristics and the hydraulic connectivity of fluvial systems.

Integrated purchase management: a process model for supplier selection based on fuzzy logic

The search for competitive advantage through the interconnection of organizational processes allows the reduction of time and expenses for companies. Therefore, this study had as main objective to propose strategies that allow to find good practices for these actions, whose main objective was to present a model for the selection process of suppliers based on fuzzy logic to improve activities.

Efeitos da suplementação de creatina relacionado ao desempenho em exercícios físicos de alta intensidade

Introdução: A creatina é um composto nutricional que possui ação ergogênica, logo, é eficaz no aumento dos níveis de força e potência muscular, sendo assim, utilizada para potencializar o desempenho esportivo em exercícios de alta intensidade. Metodologia: O estudo trata-se de uma pesquisa bibliográfica feita através da coleta de artigosindexados em revistas científicas na base de dados SciELO e LILACSpublicados entre 2004 a 2018. Os principais descritores utilizados foram: Creatina, Suplementos nutricionais e Exercício.

Políticas institucionais no contexto da inclusão de pessoas com deficiência na universidade federal do maranhão

Este artigo descreve as particularidades que envolvem o processo de inclusão de pessoas com deficiência na Educação Superior, tendo como parâmetro o Plano de Desenvolvimento Institucional da Universidade Federal do Maranhão (UFMA), o Núcleo de Acessibilidade e o documento Referências de Acessibilidade na Educação Superior do Ministério da Educação (MEC). Desenvolveu-se uma pesquisa exploratória e descritiva, com abordagem qualitativa, acompanhada de pesquisa bibliográfica e documental.

Physical exercise and covid-19: mechanisms of action and strategies to combat the effects of social isolation

At the end of 2019, a new aggressive infectious respiratory disease was identified as COVID-19 (Coronavirus Disease 2019). The outbreak of COVID-19, which was originated in China, was quickly transmitted to more than 200 countries, which is why the World Health Organization, in the first half of March 2020, classified it as a Pandemic. It is known to the academic community that SARS-COV-2 (Severe Acute Respiratory Syndrome Coronavirus 2), with high transmission speed, represents the type of coronavirus responsible for COVID-19.

Breast cancer in women under 50 years câncer de mama em mulheres a baixo de 50 anos

Objective: To identify a breast cancer accident in women under the age of 50 in a city in the interior of Minas Gerais. Methods: Field research, descriptive, with a quantitative approach. For data collection, a semi-structured form was used to interview twenty-five women under 50 years of age diagnosed with breast cancer in the years 2016, 2017 and 2018 and monitored by the Viva Mulher Program. Results: There was a predominance of women aged 41 to 50 years, married and of black race / color, incomplete elementary school and low family income.

Viability analysis of the partial replacement on natural sand by stone powder and consequences in concrete resistance

Grit, also called artificial or crushing sand, can be an option for the production to Portland cement concrete. Considering the progressive scarcity, the high cost of resources such as natural sands and the environmental impacts of their extraction. This work intends to analyze the feasibility of exchanging natural sand for crushing sand from the region located in Rio de Janeiro.