Sampling
Mostrando 13-24 de 4274 artigos, teses e dissertações.
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13. Microplastics in Latin America Ecosystems: A Critical Review of the Current Stage and Research Needs
The ubiquity of microplastics ecosystems has gained global attention. In this context, Latin America, which is responsible for 8% of the world’s consumption of plastic material and has a small recycling rate (4.5%), does not have enough data on microplastics contamination in its environmental matrices. This systematic review analyzed 196 studies from 16 te
Journal of the Brazilian Chemical Society. Publicado em: 2022
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14. Adolescent depression and resting-state fMRI brain networks: a scoping review of longitudinal studies
The neurobiological factors associated with the emergence of major depressive disorder (MDD) in adolescence are still unclear. Previous cross-sectional studies have documented aberrant connectivity in resting-state functional magnetic resonance imaging (rs-fMRI) networks. However, whether these findings precede MDD onset has not been established. This scopin
Brazilian Journal of Psychiatry. Publicado em: 2022
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15. FATORES DE EMISSÃO E DE ENRIQUECIMENTO DA CROSTA PARA ELEMENTOS TRAÇO (MP2,5) EMITIDOS PELA FROTA VEICULAR NA REGIÃO METROPOLITANA DE SÃO PAULO, BRASIL
Air pollution can cause several negative impacts on health and the environment. In large urban centers, this pollution is directly related to anthropogenic activities, mainly activities in the transportation sector. This study analyzed data on black carbon, fine particulate material (PM2.5) and its main trace elements from automotive vehicles (S, P, K, V, Cr
Química Nova. Publicado em: 2022
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16. Limitações no processo de desenvolvimento e manutenção de cooperativas rurais do Vale do Arinos, Mato Grosso
Resumo: As cooperativas são constituídas por associações de pessoas, com trabalho coletivo, gestão democrática, conhecimento do processo produtivo e relações socioeconômicas. Objetivou-se, com este trabalho, conhecer quais os principais entraves a serem superados para que as cooperativas rurais do norte de Mato Grosso se mantenham e se desenvolvam n
Interações (Campo Grande). Publicado em: 2022
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17. Digital imaging of coffee leaves under different nitrogen concentrations applied to soil
ABSTRACT Brazil is the largest Coffea arabica L. producer and exporter in the world market. In view of the need for nitrogen fertilization, the objective of this work was to evaluate the use of digital images of coffee leaves as a function of nitrogen concentration and cultivars, as well as to evaluate the most adequate sampling of this technique to predict
Revista Ceres. Publicado em: 2022
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18. Uso de hormônios não prescritos na modificação corporal de travestis e mulheres transexuais de Salvador/Bahia, Brasil
Resumo O objetivo deste artigo é analisar o uso de hormônios não prescritos entre travestis e mulheres transexuais (TrMT) na cidade de Salvador, Bahia, Brasil. Trata-se de um estudo de corte transversal onde se utilizou a metodologia RDS (respondent driven sampling) para recrutar TrMT entre 2014 e 2016, em Salvador e sua Região Metropolitana. Foi realiza
Ciência & Saúde Coletiva. Publicado em: 2022
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19. Analysis of related factors of behavioral problems in children with congenital pseudarthrosis of tibia
SUMMARY OBJECTIVE: This study aimed to investigate the factors associated with behavioral problems in children with congenital pseudarthrosis of the tibia. METHODS: Random sampling is utilized to obtain a sample of 90 patients. The behavioral problems of the patients are detected by Achenbach Children's Behavior Scale. Parental emotional problems are inves
Revista da Associação Médica Brasileira. Publicado em: 2022
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20. ELECTRONIC WORD-OF-MOUTH, RISCO PERCEBIDO E A SENSIBILIDADE DOS CONSUMIDORES AOS PREÇOS DOS MEIOS DE HOSPEDAGEM OFERTADOS NO AMBIENTE VIRTUAL
RESUMO: As relações de consumo estão passando por mudanças devido ao surgimento de novas plataformas digitais. Isso afetou vários setores da economia, incluindo hotelaria e turismo. Portanto, este estudo teve como objetivo verificar o quão sensíveis são os consumidores de serviços de hospedagem em relação aos preços praticados por hotéis, pousad
Turismo: Visão e Ação. Publicado em: 2022
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21. Validation of the psychological safety, psychological empowerment, intrapreneurial behaviour and individual performance measurements
Abstract Purpose The purpose of this study is to assess the validity of the psychological safety (PS), psychological empowerment (PE), intrapreneurial behaviour (IB) and individual performance (IP) construct measurements originally developed in Western individualistic cultures. Design/methodology/approach Proportionate stratified systematic sampling was us
RAUSP Management Journal. Publicado em: 2022
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22. A potential syndemic effect associated with symptoms of depression among men who have sex with men
Introduction: Globally, depression rates are high among men who have sex with men (MSM). Multiple factors may interact synergistically to increase this risk. This analysis assessed the prevalence of symptoms of depression among MSM in Brazil and synergistic effects of several factors. Methods: Cross-sectional study conducted in 12 cities using respondent-dr
Brazilian Journal of Psychiatry. Publicado em: 2022
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23. Self-reported depression and anxiety among COPD patients. A case-control study
Abstract BACKGROUND: Anxiety and depression are the most prevalent mental disorders worldwide. However, the exact mechanisms linking chronic obstructive pulmonary disease (COPD) with depression and anxiety have not been identified. OBJECTIVES: To compare self-reported depression and anxiety among patients diagnosed with COPD in relation to healthy controls
Sao Paulo Medical Journal. Publicado em: 2022
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24. Sampling techniques and environmental variables influence the distribution of pseudoscorpions in urban forest fragments in the central Amazon
RESUMO O crescimento das paisagens urbanas geralmente reduziu a biodiversidade em todo o mundo. Os invertebrados exploram diferentes ambientes, e geralmente são necessárias diferentes técnicas de amostragem para obter uma amostra representativa da assembleia de espécies em um determinado local. Alguns estudos têm buscado determinar o número mínimo nec
Acta Amazonica. Publicado em: 2022