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Mostrando 13-24 de 3000 artigos, teses e dissertações.
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13. Polarização e contexto: medindo e explicando a polarização política no Brasil
Este artigo analisa se estão em curso, no Brasil, a polarização afetiva e (ou) a polarização ideológica, quais são as suas características e se elas estão dispersas ou concentradas em determinados grupos na sociedade brasileira. A pesquisa utiliza dados do Eseb (2002 – 2018) e do Lapop (2010 – 2019). Os resultados indicam que: 1) há um aumento
Opinião Pública. Publicado em: 2022
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14. Ecology of knowledges and languages in Latin American academic production
Resumo A produção acadêmica latino-americana é analisada em relação à sua visibilidade, internacionalização e ecologia de saberes e de línguas nesse processo. Ferramentas bibliométricas foram utilizadas para formar um corpus de 2.939 estudos da base de dados Scopus entre 2010-2019, analisados em duas dimensões: a dimensão input/editorial, e a di
Ensaio: Avaliação e Políticas Públicas em Educação. Publicado em: 2022
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15. Study of electrophoretic deposition of ZnO photoanodes on fluorine-doped tin oxide (FTO) glass for dye-sensitized solar cells (DSSCs)
Abstract Semiconductors, such as zinc oxide (ZnO), are used in different scientific fields, including energy. This study applied ZnO thin films on a photovoltaic cell, specifically a dye-sensitized solar cell (DSSC). ZnO was used in solar cells due to its characteristics such as electronic mobility. Electrophoretic deposition (EPD) is an efficient method to
Cerâmica. Publicado em: 2022
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16. Mechanical Circulatory Assist Devices: Which Is the Best Device as Bridge to Heart Transplantation?
ABSTRACT Introduction: Heart transplantation is the recommended treatment method for patients with advanced heart failure that is refractory to clinical treatment. Due to the progressive severity of these patients and the impossibility of performing the transplant in a short term, there are mechanical circulatory assist devices that can offer necessary hemo
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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17. Doxazosin adsorption in natural, expanded, and organophilized vermiculite-rich clays
Abstract Vermiculite clays are adsorbent materials that have good chemical adsorption capacity, which makes them applicable in the removal of drugs from aqueous solutions. Their lamellar structure can be easily expanded and organophilized. To assess the efficacy and environmentally-tolerant capacity of the adsorption method, the organophilized vermiculite cl
Cerâmica. Publicado em: 2022
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18. Source-sink relationship of soybean accessed by increasing in solar radiation through the plant canopy
ABSTRACT The photosynthetic metabolism is a key point to improve soybean yield. In this work, we demonstrated that radiation use by soybean plants can be improved, aiming to improve the grain yield in the lower canopy. The objective of this study was to observe whether the increase in solar radiation input in the canopy of soybean plants improves their yield
Revista Ceres. Publicado em: 2022
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19. Stock options: do they influence dividend payments?
Abstract Purpose This study aims to investigate whether there is any influence of the option plan to purchase shares protected from dividends to determine the distribution of dividends in Brazilian companies. Design/methodology/approach The authors used a Tobit dynamic and regressive regression model because their sample has an index higher than 30% of com
RAUSP Management Journal. Publicado em: 2022
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20. Argumentación desde la enseñanza de las soluciones químicas
This research, whit the design and implementation of contextualized laboratory activities in chemistry was carried out, in order to demonstrate the level of argumentation presented by teachers in initial training, first semester of the Bachelor of Natural Sciences program and Environmental Education of the Pedagogical and Technological University of Colombia
Química Nova. Publicado em: 2022
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21. Association of 25-hydroxyvitamin D with hematological profile and anthropometry in patients with glioma
SUMMARY OBJECTIVE: Gliomas are immune system suppressive tumors, and the role of vitamin D is pivotal in the immune system. This study aimed to observe if there is any significant association between the serum levels of 25-hydroxyvitamin D with hematological indices and anthropometric measurements. METHODS: A total of 75 glioma patients were included, and
Revista da Associação Médica Brasileira. Publicado em: 2022
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22. Extra-pituitary midline structural abnormalities associated with ectopic posterior pituitary detected on a new rapid MRI protocol (FAST1.2)
ABSTRACT Objective: Test if the MRI FAST1.2 protocol can detect extra-pituitary midline structural brain abnormalities in patients with ectopic posterior pituitary (EPP), and highlighting their radiological-laboratory correlations. Subjects and methods: Cross-sectional study of patients with EPP and control group. All individuals were submitted to FAST1.2,
Archives of Endocrinology and Metabolism. Publicado em: 2022
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23. Comparison of the autonomic nervous system dysfunction between different chronic spine disorders: neck pain versus low back pain
SUMMARY OBJECTIVE: This study aims to compare heart rate variability (HRV) between patients with chronic neck pain and patients with chronic low back pain and to correlate the chronic pain variables with heart rate variability indices. METHODS: This is a cross-sectional study. We divided the sample into two groups: neck pain (n=30) and low back pain (n=30)
Revista da Associação Médica Brasileira. Publicado em: 2022
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24. Hemorrhagic Versus Ischemic Risk in Patients with Atrial Fibrillation on Hemodialysis
Abstract Background Hemodialysis (HD) patients with atrial fibrillation (AF) have a particularly high risk of stroke and bleeding, but no high-quality evidence-based recommendations exist to properly manage these patients. Objectives We aim to evaluate the ischemic versus the hemorrhagic risk in a HD population with AF. Methods We selected incident pat
International Journal of Cardiovascular Sciences. Publicado em: 2022