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New records of Orchids from Morocco
Vázquez, Francisco; Pinto-Gomes, Carlos; Sánchez-Mata, Daniel; Gavilán, Rosario; Ferreira, Rodrigo; Vilches, BeatrizThe exploration of the Rif Valley (Morocco) during 2010 revealed the presence of some new taxa and records from Morocco. The new taxa are: Orchis langei subsp. magrebensis and Ophrys neglecta var. riphaea. Ophrys neglecta var. neglecta and Ophrys numida have been detected for the first time in Morocco.
Hemoptysis: an uncommun case.
Trindade E Silva, L P; Cabrera, Heidy; Vázquez, Francisco; Lopes, Luísa; Tavares, AlcinaDefined as an expectoration of blood from the subglottic airways, the hemoptysis is a symptom that suggests a variety of pathologies that can be more or less benign and even fatal, a life threatening for the person who suffers it. Between the most common causes we have bronchitis, bronchiectasis and bronchopulmonary neoplasia. Less frequent causes are: Goodpasture's syndrome, Wegener's granulomatosis, systemic ...
Un método de bajo costo para la determinación de cobre a nivel de vestigios en ...
Pellerano,Roberto Gerardo; Romero,Cesar Hamilton; Acevedo,Hugo Arnoldo; Vazquez,Francisco AntonioA method for determining copper by solid phase spectrophotometry (SPS) was optimized using the Doehlert design. Copper(II) was sorbed on a styrene-divinylbenzene anion-exchange resin as a Cu(II)-1-(2-pyridylazo)-2-naphthol (PAN) complex, at pH 7.0. Resin phase absorbances at 560 and 800 nm were measured directly. The detection limit was found to be 2.5 µg L-1. The relative standard deviation on ten replicate de...
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