Work
Mostrando 13-24 de 47401 artigos, teses e dissertações.
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13. Job precariousness: supply chain management in a waste pickers association
Resumo Waste pickers are key players within municipal solid waste management and an important link in the recycling chain. Waste pickers perform their activities in precarious conditions: they work in bad weather; run the risk of traffic accidents; come in contact with insects that transmit disease and suffer from weight overload. These conditions are aggrav
Interações (Campo Grande). Publicado em: 2022
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14. Quimiometria III - Revisitando a análise exploratória dos dados multivariados
In this work, three methods for pattern recognition, used as exploratory data analysis, are revisited. A brief review of principal component analysis, PCA, an unsupervised method, is provided. Next, the Mahalanobis distance and the confidence ellipses usually drawn around the scores samples are discussed. Fisher’s canonical variate analysis (a supervised m
Química Nova. Publicado em: 2022
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15. Cardiovascular Risk Factors in Haul Truck Operators of the Mining Sector Working a Rotational Schedule
Abstract Background: Due to the growing concern about work-related social and health aspects, occupational health and safety has become relevant. Objective: This work aims to develop a model to assist cardiovascular risk management in a team of haul truck operators, who work in rotating shifts at a mining company in Brazil. Methods: This longitudinal stud
International Journal of Cardiovascular Sciences. Publicado em: 2022
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16. Knowledge of and adherence to standard precautions in a hemodialysis unit: a cross-sectional study
Abstract BACKGROUND: Standard precautions (SPs) are recommended safety measures for healthcare professionals to follow, with a view to preventing healthcare-related infections (HCRIs) and for their own protection. Inadequate adherence to these measures can lead to occurrences of occupational accidents and HCRIs. OBJECTIVES: To ascertain the knowledge of an
Sao Paulo Medical Journal. Publicado em: 2022
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17. Association between breastfeeding and complementary feeding in pre-pandemic and pandemic COVID-19 times: Maternar cohort study
Abstract Objective Evaluate the association between breastfeeding, exclusive breastfeeding at six months and the introduction of complementary feeding during the pre-pandemic and the COVID-19 pandemic periods. Methods Cohort study conducted with puerperal women and their newborns in the immediate postpartum period at a reference maternity hospital in South
Jornal de Pediatria. Publicado em: 2022
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18. SPIEL MIT DER MASKE: HEGEL UND SCHLEGEL ZUR KOMÖDIE
ABSTRACT In the previous Hegel literature, Schlegel is mostly treated as Hegel’s antipode. In contrast to this, my interest in the present work is directed towards showing that Hegel’s presentation of comedy in the „Phenomenology of the Spirit“ may have developed under the influence of Schlegel’s texts on comedy. In order to be able to prove this,
Kriterion: Revista de Filosofia. Publicado em: 2022
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19. Variational Formulation and A Priori Estimates for the Galerkin Method for a Fractional Diffusion Equation
ABSTRACT In this work we obtain a variational formulation and a priori estimates for approximate solutions of a problem involving fractional diffusion equations.
Trends in Computational and Applied Mathematics. Publicado em: 2022
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20. Variations of Compact Rectangular Microstrip Antennas Using Defected Ground Plane Structure
Abstract The defects in the form of slots have been employed in microstrip antenna either on the patch or the ground plane to yield frequency reduction. However, the reported work does not provide any comparative study that highlight upon the frequency and cross-polar level reduction achieved using these various shape slot/defects. This paper provides a thor
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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21. Fast Catalytic Pyrolysis of Tetradecanoic Acid: Formation of Ketones as Intermediate Compounds in the Production of Hydrocarbons
This work aimed to compare two different catalysts in the production of a long chain ketone, intermediate in the production of hydrocarbons, during pyrolysis of tetradecanoic acid as a model fatty acid. The studied variables were the temperature, 450 and 600 ºC, and catalysts, γ-Al2O3 and Nb2O5, the latter has never been studied under such conditions. Pyro
Journal of the Brazilian Chemical Society. Publicado em: 2022
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22. Career choices: Adaptation and initial evidence of the Work Volition Scale in Brazil
Resumo Volição é a percepção individual sobre a possibilidade de fazer escolhas e tomar decisões de carreira, apesar das restrições apresentadas pelo ambiente externo à pessoa. Trata-se de um conceito relevante na Teoria da Psicologia do Trabalhar em que se destacam os fatores contextuais e o papel que a classe social, privilégio e liberdade de esc
BBR. Brazilian Business Review. Publicado em: 2022
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23. FUZZY MODELING OF SALINITY EFFECTS ON PUMPKIN (Cucurbita pepo) DEVELOPMENT
ABSTRACT The low quality of the water currently used for irrigation purposes harms the quality of the products and can lead to a reduction in production. Thus, the objective of this work was to verify the effect of saline water in irrigation water, on biometric variables of pumpkin crop using a system based on fuzzy rules. The agronomic experimental part of
Engenharia Agrícola. Publicado em: 2022
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24. Capacited Vehicle Routing Problem with CO2 Emission Minimization Considering Path Slopes
ABSTRACT This work presents the application of a CO2 emission estimation function for cargo vehicles on a Capacited Vehicle Routing Problems (CVRP) setting, considering route’s slopes variation. Comparisons were established with functions minimizing fuel consumption and route length in a case study about selective collection of recyclable waste at Sorocaba
Trends in Computational and Applied Mathematics. Publicado em: 2022