5 documents found, page 1 of 1
Controle litológico sobre índices de meteorização química: um caso de estudo co...
Cruz, Armanda; Dinis, Pedro; Gomes, António AlbertoDifferent compositional features of sedimentary units have been used to evaluate the intensity of chemical weathering. In this work we used the geochemistry and clay mineralogy of a set of present-day sediments collected in the lithologically and geomorphologically heterogenous Caculuvar- Mucope fluvial system to investigate the processes that influence weathering proxies. Weathering proxies measured in deposit...
Influence of Sediment Cycling on the Rare-Earth Element Geochemistry of Fluvial...
Cruz, Armanda; Dinis, Pedro; Gomes, António; Leite, PaulaThe rare-earth element (REE) geochemistry of sedimentary deposits has been used in provenance investigations despite the transformation that this group of elements may suffer during a depositional cycle. In the present investigation, we used the geochemistry and XRD mineralogy of a set of sand and mud fluvial deposits to evaluate the ability of REE parameters in provenance tracing, and the changes in REE geoche...
Influence of sediment cycling on the rare-earth element geochemistry of fluvial...
Cruz, Armanda; Dinis, Pedro A.; Gomes, António Alberto; Leite, Paula Cristina PintoThe rare-earth element (REE) geochemistry of sedimentary deposits has been used in provenance investigations despite the transformation that this group of elements may suffer during a depositional cycle. In the present investigation, we used the geochemistry and XRD mineralogy of a set of sand and mud fluvial deposits to evaluate the ability of REE parameters in provenance tracing, and the changes in REE geoche...
Análise Morfométrica da Bacia Hidrográfica do Rio Caculuvar (Angola)
Cruz, Armanda; Martins, Márcia; Gomes, António Alberto; Dinis, Pedro
Sengstaken–Blakemore tube: an unusual complication
Gonçalves, Bruno M.; Caetano, Ana C.; Fernandes, Dália; Cruz, Armanda; Bastos, Pedro; Rolanda, Carla[Excerpt] Acute variceal bleeding is a life-threatening event. Endoscopic band ligation is currently the recommended treatment [1]; however, in the case of reduced variceal volume, injection therapy with polidocanol or Histoacryl may be more appropriate. If both endoscopic options fail, placement of a Sengstaken–Blakemore tube should be considered [2], although other endoscopic therapies can be used [3]. [...]