Mercedes Guijarro

Learn More
Accurate determination of flammability is required in order to improve knowledge about vegetation fire risk. Study of the flammability of different plant species is essential for the Mediterranean area, where most ecosystems are adapted to natural fire but vulnerable to recurrent human-induced fires, which are the main cause of forest degradation. However,(More)
Assessment of the flammability of ornamental vegetation (particularly hedges) planted around houses is necessary in light of the increasing urbanization of the wildland-urban interfaces (WUIs) and the high fire occurrence in such areas. The structure and flammability of seven of the species most frequently planted as hedges in Provence (southeastern France)(More)
Wildfires are considered the most important disturbance in the Mediterranean Basin, and some are propagated over long distances due to lift-off and ignition of firebrands. To improve our knowledge of firebrands involved in spotting fires, flammability characteristics of eight types of firebrands commonly generated by wildfires in Southern Europe were(More)
In the present study, a smouldering fire was reproduced in a substrate from a Pinus pinaster forest in the southeastern Iberian Peninsula. Experiments were carried out, in laboratory, using soil monoliths to assess the short-term fire-induced effects on germination, survival and morphological traits in young (3-year-old) specimens of Pinus pinaster Ait. The(More)
Experimental evidence has revealed that several thymidylate synthase (TS) DNA polymorphisms modulate gene expression, which, in turn is known to be down-regulated by oestrogen receptor subtypes. Consequently, this process might be influenced by female hormones. Based on these data, we investigated whether patient's gender and TS polymorphism exert an(More)
Myelolipoma is a benign tumour consisting of mature fat with scattered foci of haematopoietic elements resembling bone marrow. Extra-adrenal myelolipomas are an infrequent pattern of presentation. We report the case of a 64-year-old woman who presented a heterogeneous 1.4×2.5×3 cm paravertebral thoracic mass detected by chest tomography during the study of(More)
The abandonment of rural areas has led to an increase of the fire-prone European gorse (Ulex europaeus L.) communities in some regions, where prescribed burning is a technique applied to control them. Understanding flammability changes after treatments is crucial for the sustainable use of fire. The objectives of this study were to evaluate (1) any(More)
Prescribed burning is commonly used to prevent accumulation of biomass in fire-prone shrubland in NW Spain. However, there is a lack of knowledge about the efficacy of the technique in reducing fire hazard in these ecosystems. Fire hazard in burned shrubland areas will depend on the initial capacity of woody vegetation to recover and on the fine ground(More)
Running head title: 1 Spot fires: Fuel bed flammability and ignition capability of firebrands 2 Anne Ganteaume ; Corinne Lampin-Maillet, Mercedes Guijarro, Carmen Hernando , Marielle Jappiot; 3 Teresa Fonturbel, Pedro Pérez-Gorostiaga and José A. Vega 4 5 : Cemagref UR EMAX, 3275 Route de Cézanne, CS 40061, 13182 Aix-en-Provence, France 6 : Centro de(More)
Primary sclerosing cholangitis is a chronic progressive disorder which involves the medium size and large ducts in the intrahepatic and extrahepatic biliary tree. The great majority of cases have underlying inflammatory bowel disease, mainly ulcerative colitis. A higher risk of colorectal cancer has been described among ulcerative colitis patients with(More)