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In recent decades, mosses have been used successfully as biomonitors of atmospheric deposition of heavy metals. Since 1990, the European moss survey has been repeated at five-yearly intervals. Although spatial patterns were metal-specific, in 2005 the lowest concentrations of metals in mosses were generally found in Scandinavia, the Baltic States and(More)
A biomonitoring survey using the moss species Hypnum cupressiforme Hedw. was conducted in the surroundings of two steel plants located in the North of Spain. Levels of V, Cr, Ni, Cu, Zn, As, Cd, Hg, Pb and N were determined. Very high concentrations in the areas of study were detected when compared to nearby unaffected regions. Similar trends were observed(More)
Ambient concentrations of volatile organic compounds (VOC) and nitrogen dioxide (NO2) were measured by means of passive sampling at 40 sampling points in a medium-size city in Northern Spain, from June 2006 to June 2007. VOC and NO2 samplers were analysed by thermal desorption followed by gas chromatography/mass-selective detector and by visible(More)
This study examines the exposure level of passengers and drivers to VOC in public buses in a medium-size metropolitan area (Northern Spain). In-vehicle monitoring was performed on different routes, on peak and non-peak hours, during January and February 2007. A total of 112 air samples were collected onto adsorbent tubes and analysed by thermal desorption(More)
OBJECTIVE To update the recommendations for antiretroviral therapy in adult HIV-infected persons according to the new scientific advances and the existence of new antiretroviral drugs in the last two years. METHODS The antiretroviral therapy recommendations have been condensed by a panel of experts from the Spanish AIDS Study Group (Grupo de Estudio de(More)
A comparative study of state-of-the-art evolutionary image registration methods for 3D modeling q a b s t r a c t Image registration (IR) aims to find a transformation between two or more images acquired under different conditions. This problem has been established as a very active research field in computer vision during the last few decades. IR has been(More)
Ambient concentrations of volatile organic compounds (VOCs) were measured at 40 rural sampling points in Navarre (northern Spain). Air samples were collected by means of sorbent passive sampling and analyzed by thermal desorption (TD) and gas chromatography/mass-selective detector (GC/MSD). A total of 140 VOCs were identified during the study, which was(More)
The profound impairment of cellular immunity associated with HIV infection predisposes to salmonella infections with recurrent bacteremia as a well recognized opportunistic infection in patients with AIDS. However, salmonella meningitis is extremely rare in this group of patients and only 4 cases have been reported so far. We present 1 case of recurrent(More)