Efecto de los factores ambientales en la eficiencia de arreglos de paneles solares fotovoltaicos /

Identificar cómo afecta el ensuciamiento de los paneles al rendimiento de los sistemas fotovoltaicos, ayudaría a mejorar sus ciclos de limpieza y reducir su huella de carbono indirecta. Por esto, se analizó un sistema fotovoltaico instalado en Barranquilla (Colombia); calculando su rendimiento teniendo en cuenta los factores climáticos y comparándolo con el rendimiento real del sistema. Se notó diferencias entre el rendimiento real y calculado, atribuibles al ensuciamiento de los paneles lo que aumenta la huella de carbono indirecta del sistema ya que la energía no generada por el sistema debe ser suministrada por fuentes de energía convencionales (combustibles fósiles); estas diferencias cambian en función de las lluvias. En consecuencia, la caracterización de las lluvias permitiría conocer un modelo para estimar su efecto sobre el ensuciamiento. ABSTRACT: Identifying how soiling affects the performance of photovoltaic systems, would help us to improve their cleaning cycles and reduce their indirect carbon footprint. For this reason, a photovoltaic system installed in Barranquilla (Colombia) was analyzed; calculating their performance considering the climatic factors and comparing it with the real performance of the system. Differences were noted between actual and calculated performances referable to soiling, what increase the system’s indirect carbon footprint because the non-generated energy must be supply by a conventional energy source (fossil fuels); these differences change depending on the rains. So the characterization of the rains would allow to know a model to estimate the soiling

Impact of measurable residual disease by decentralized flow cytometry: a PETHEMA real-world study in 1076 patients with acute myeloid leukemia

The role of decentralized assessment of measurable residual disease (MRD) for risk stratification in acute myeloid leukemia (AML) remains largely unknown, and so it does which methodological aspects are critical to empower the evaluation of MRD with prognostic significance, particularly if using multiparameter flow cytometry (MFC). We analyzed 1076 AML patients in first remission after induction chemotherapy, in whom MRD was evaluated by MFC in local laboratories of 60 Hospitals participating in the PETHEMA registry. We also conducted a survey on technical aspects of MRD testing to determine the impact of methodological heterogeneity in the prognostic value of MFC. Our results confirmed the recommended cutoff of 0.1% to discriminate patients with significantly different cumulative-incidence of relapse (-CIR- HR:0.71, P < 0.001) and overall survival (HR: 0.73, P = 0.001), but uncovered the limited prognostic value of MFC based MRD in multivariate and recursive partitioning models including other clinical, genetic and treatment related factors. Virtually all aspects related with methodological, interpretation, and reporting of MFC based MRD testing impacted in its ability to discriminate patients with different CIR. Thus, this study demonstrated that “real-world” assessment of MRD using MFC is prognostic in patients at first remission, and urges greater standardization for improved risk-stratification toward clinical decisions in AML.This study was supported by the Centro de Investigación Biomédica en Red – Área de Oncología - del Instituto de Salud Carlos III (CIBERONC; CB16/12/00369, CB16/12/00233, CB16/12/00284 and CB16/12/00400), Instituto de Salud Carlos III/Subdirección General de Investigación Sanitaria (FIS No. PI16/01661, PI16/00517 and PI18/01946), Gerencia Regional de Salud de CyL (GRS 1346/A/16) and the Plan de Investigación de la Universidad de Navarra (PIUNA 2014-18). This study was supported internationally by the Cancer Research UK, FCAECC and AIRC under the Accelerator Award Program EDITOR