The result of the multidisciplinary collaboration of researchers from different areas of knowledge to validate a solar radiation model is presented. The MAPsol is a 3D local-scale adaptive solar radiation model that allows us to estimate direct, diffuse, and reflected irradiance for clear sky conditions. The model includes the adaptation of the mesh to complex orography and albedo, and considers the shadows cast by the terrain and buildings. The surface mesh generation is based on surface refinement, smoothing and parameterization techniques and allows the generation of high-quality adapted meshes with a reasonable number of elements. Another key aspect of the paper is the generation of a high-resolution digital elevation model (DEM). This high-resolution DEM is constructed from LiDAR data, and its resolution is two times more accurate than the publicly available DEMs. The validation process uses direct and global solar irradiance data obtained from pyranometers at the University of Salamanca located in an urban area affected by systematic shading from nearby buildings. This work provides an efficient protocol for studying solar resources, with particular emphasis on areas of complex orography and dense buildings where shadows can potentially make solar energy production facilities less efficient.
We present 4 patients who had laser in situ keratomileusis and were referred to our clinic with a diagnosis of infectious keratitis. Laser in situ keratomileusis was performed in all cases in the same operating room by different surgeons between April and May 2002. A partial penetrating keratoplasty was performed in all patients to control the process. A study of the corneas demonstrated the presence of the fungus Acremonium in all cases. Rigid asepsis during the surgical procedure is important to prevent this serious complication.
Acremonium/isolation & purification , Eye Infections, Fungal/etiology , Keratitis/microbiology , Keratomileusis, Laser In Situ/adverse effects , Mycoses/etiology , Adult , Anti-Bacterial Agents , Astigmatism/surgery , Combined Modality Therapy , Corneal Stroma/microbiology , Drug Therapy, Combination/therapeutic use , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Female , Humans , Keratitis/diagnosis , Keratitis/drug therapy , Keratoplasty, Penetrating , Male , Middle Aged , Mycoses/diagnosis , Mycoses/therapy , Myopia/surgery , Surgical Flaps/microbiology
BACKGROUND: The aim of the present study was to evaluate the accuracy of an automated oscillometric device, Lohmeier B-606, for clinical use in hospitals, according to there commendations of the European Society of Hypertension. METHODS: Thirty-three subjects were studied. We performed three pair of sequential comparisons of blood pressure in each patient, first with mercury sphygmomanometer, second with the oscillometric device, obtaining a whole number of 99 comparisons. RESULTS: From the total 99 comparisons, 55 for SBP and 66 for DBP showed differences 3/4 5 mmHg, 86 and 88 differences 3/4 10 mmHg and 99 for SBP and DBP differences 3/4 15 mmHg. Mean differences between procedures (mercury-automatic) were 0.08 (confidence interval [IC] 95%: 14.1, 14.3) for SBP and 0.99 (95% CI: 11.0, 13.0) for DBP. Intraclass correlation coefficients were 0.975 for SBP and 0.944 for DBP. CONCLUSIONS: The blood pressure measurement oscillometric device Lohmeier B-606 satisfies the European Society of Hypertension criteria for clinical use in hospitals.
Blood Pressure Determination/instrumentation , Equipment Design , Hospitals , Humans , Reproducibility of Results
FUNDAMENTO: El objetivo del presente estudio ha sido validar la fiabilidad del aparato oscilométrico Lohmeier B-606 para la medida de la presión arterial de uso hospitalario, siguiendo las recomendaciones de la Sociedad Europea de Hipertensión. MÉTODO: Se ha estudiado a 33 individuos a los que se ha realizado tres pares de medidas secuenciales, primero con el esfigmomanómetro de mercurio y después con el aparato oscilométrico a validar, obteniendo en total 99 comparaciones. RESULTADOS: De las 99 comparaciones, 55 para la presión arterial sistólica (PAS) y 66 para la presión arterial diastólica (PAD) presentaron diferencias 5 mmHg; 86 y 88 diferencias 10 mmHg, y 99 para PAS y PAD diferencias 15mmHg. Las diferencias medias entre ambos procedimientos (manual-automático) fueron de -0,08 (intervalo de confianza [IC] del 95 per cent, -14,1 a 14,3) para la PAS y de 0,99 (IC del 95 per cent, -11,0 a 13,0) para la PAD. Los coeficientes de correlación intraclase fueron de 0,975 para la PAS y 0,944 la PAD.CONCLUSIONES: El aparato oscilométrico Lohmeier B-606 cumple los criterios de validación recomendados por la Sociedad Europea de Hipertensión para la medición de la presión arterial de uso hospitalario (AU)
Humans , Reproducibility of Results , Blood Pressure Determination , Hospitals , Equipment Design
