Contributions
Mostrando 13-24 de 4092 artigos, teses e dissertações.
-
13. Interaction of Suspended Particulate Material with Cd2+ and Pb2+ in a Brazilian Lagoon Estuarine System
The suspended particulate material (SPM) present in waters has fundamental importance for a better understanding of environmental behaviors of aquatic pollutants. This work determined the physicochemical parameters (pH, temperature, conductivity, total organic carbon and metals concentration) in water samples from Mundaú-Manguaba estuarine-lagoon system, Al
J. Braz. Chem. Soc.. Publicado em: 2021-01
-
14. Nuclear Medicine Methods for Assessment of Chronic Chagas Heart Disease
Abstract Several different imaging methods can be used to evaluate patients with Chagas heart disease (CHD) for diagnostic and prognostic purposes, including plain chest radiography; echocardiography; myocardial perfusion scintigraphy, for detection of ischemia and fibrosis; radionuclide gated-angiography, for evaluation of biventricular function; 123I-MIBG
Int. J. Cardiovasc. Sci.. Publicado em: 2020-12
-
15. Case Report: Myocardial Bypass in Left Descending Artery - A Rare Congenital Anomaly
Abstract Myocardial bypass (MB) is known to have scientific relevance and is present in several studies with great statistical significance regarding its clinical manifestations and complications. There are still questions about MB in its relationship with heart disease and repercussion in life-threatening conditions. We present a case report of a MB in the
Int. J. Cardiovasc. Sci.. Publicado em: 2020-10
-
16. Segurança dos Procedimentos da Cardiologia Intervencionista na Síndrome Coronariana Crônica durante a Pandemia de COVID-19
Abstract Myocardial bypass (MB) is known to have scientific relevance and is present in several studies with great statistical significance regarding its clinical manifestations and complications. There are still questions about MB in its relationship with heart disease and repercussion in life-threatening conditions. We present a case report of a MB in the
Arq. Bras. Cardiol.. Publicado em: 2020-10
-
17. Corporate electoral donations and tax aggressiveness
Abstract Purpose The purpose of this paper is to investigate whether companies that donate to winning electoral campaigns are more aggressive in terms of tax planning than companies that do not make these contributions. The relationship between politicians and companies may be signaled by political connections in which companies try to get political benefit
RAUSP Manag. J.. Publicado em: 2020-09
-
18. A debate over the link between Salvador Allende, Max Westenhöfer, and Rudolf Virchow: contributions to the history of social medicine in Chile and internationally
Resumen En el marco de la historia de la medicina social latinoamericana, numerosos trabajos historiográficos han presentado un vínculo armónico entre Rudolf Virchow, Max Westenhöfer y Salvador Allende, afirmando una procedencia virtuosa de las ideas de la medicina social latinoamericana en una prestigiosa fuente europea, como es la que representa Vircho
Hist. cienc. saude-Manguinhos. Publicado em: 2020-09
-
19. AVALIAÇÃO DE NANOTUBOS DE CARBONO FUNCIONALIZADOS VISANDO O DESENVOLVIMENTO DE MÉTODOS DE PRÉ-CONCENTRAÇÃO DE ÍONS METÁLICOS E DETERMINAÇÃO POR TÉCNICAS ESPECTROMÉTRICAS E ELETROANALÍTICAS
This review focuses on the use of functionalized carbon nanotubes (CNTs) on the development of preconcentration methods with substantial contributions on selectivity and sensitivity for metal ions determination. CNTs have been usually employed in the development of preconcentration/speciation coupled to spectroanalytical techniques for ions determination at
Quím. Nova. Publicado em: 2020-09
-
20. Efficiency of electricity distribution companies
Abstract Purpose After assessing papers on efficiency, most of the studies available are focused on the analysis of efficiency measures, without providing a deep discussion of the factors that determine efficiency. This study aims to evaluate the efficiency of Brazilian electricity distribution companies based on a structural model that enables the identifi
RAUSP Manag. J.. Publicado em: 2020-06
-
21. DURABILITY OF HDPE GEOMEMBRANES: AN OVERVIEW
The polymer demand for geotechnical applications has been growing. The geomembrane is a geosynthetic, manufactured, polymeric product and is often specified in environmental projects. Geomembranes started to be used in the 1930s but became more widespread in the 1940s. In the 1970s, geomembranes began to be specified for landfills. Over the past forty years,
Quím. Nova. Publicado em: 2020-05
-
22. Amaranth in southernmost latitudes: plant density under irrigation in Patagonia, Argentina
ABSTRACT In Argentina there have been few evaluations of Andean pseudocereal plantings. This study explored the response of Amaranthus cruentus cv Mexicano to different plant densities under furrow irrigation in the lower valley of the river Negro, Patagonia, Argentina. The experimental design consisted of 3 blocks with randomized treatments (subplots), each
Rev. Ceres. Publicado em: 2020-04
-
23. Transcription factors and molecular markers revealed asymmetric contributions between allotetraploid Upland cotton and its two diploid ancestors
ABSTRACT Three Gossypium species have been used to breed cotton as they vary in their fiber production and resistance to stresses. Transcription factors (TFs) mostly are present in different copies or isoforms by which they conduct their regulation. Their copy number can determine organism behavior to a cue. Simple sequence repeats (SSRs) are one of the most
Bragantia. Publicado em: 2020-03
-
24. Latin American and Spanish-speaking perspectives on the challenges of global psychiatry
The multi-faceted phenomenon known as globalization has a particular impact on the conceptual and practical development of mental health disciplines in general, and psychiatry in particular, across different world regions. To be theoretically and functionally effective, global psychiatry requires an integration of its different components. To such objective,
Braz. J. Psychiatry. Publicado em: 2020-02