146 research outputs found
Optimization of Fast Spin Echo Studies b y Software Simulation
Procedings of the International Symposium on Computer and Communication Systems for Image Guided Diagnosis and Therapy, Paris, France, June 26-29, 1996Publicad
Effect of Standing Waves in Signal to Noise Ratio Measurement
Procedings of the International Symposium on Computer and Communication Systems for Image Guided Diagnosis and Therapy, Paris, France, June 26-29, 1996Publicad
Diseño de phantoms para resonancia magnética
[Abstract] Congreso Nacional de RadiologÃa 23, organizado por la Sociedad Española de RadiologÃa, Palma de Mallorca, España, 18 - 22 mayo 199
Estado actual de la gestión de residuos de construcción y demolición: limitaciones
[ES] El sector de la construcción ha crecido de forma exponencial en las últimas décadas y con él, la producción de residuos generados, estimándose esta en 2 kg por habitante y dÃa, lo que representa una magnitud es-calofriante. Para solucionar este problema la administración promueve comportamientos ecológicos respecto a la gestión de residuos de construcción y demolición (producción y posterior manejo y utilización de los mis-mos) a través de la redacción de normas que regulen el tema.Estas normas presentan importantes caren-cias y limitaciones. Si estas carencias y limitaciones no se resuelven, el proceso encaminado a mejorar la sostenibilidad se interrumpe y las medidas tomadas hasta el momento se vuelven ineficaces.Este trabajo pretende poner de manifiesto estos problemas a fin de evitarlos, de forma que todos los agentes implicados conozcan el importante papel que desempeñan en la correcta gestión.[EN] Construction has grown exponentially in recent decades. This development has also brought large production of debris from construction and demolition. These wastes have reached the environment and generated a very important pollution in the landscape, soil and water. Equally it represents a loss of potential resources; because these wastes still have capacity to be recovered. Both central and regional government have published nu-merous standards, in recent years, to establish guidelines for a proper management, reuse and recycling of this debris. This paper analyzes the current status of this legislation, their gaps and their degree of implementation
The TRAPSENSOR facility: an open-ring 7 tesla Penning trap for laserbased precision experiments
APenning-trap facility for high-precision mass spectrometry based on a novel detection method has
been built. This method consists in measuring motional frequencies of singly-charged ions trapped in
strong magnetic fields through the fluorescence photons from laser-cooled 40Ca+ ions, to overcome
limitations faced in electronic single-ion detection techniques. The key element of this facility is an
open-ring Penning trap coupled upstream to a preparation Penning trap similar to those used at
Radioactive Ion Beam facilities. Here we present a full characterization of the trap and demonstrate
motional frequency measurements of trapped ions stored by applying external radiofrequency fields
in resonance with the ions’ eigenmotions, in combination with time-of-flight identification. The
infrastructure developed to observe the fluorescence photons from 40Ca+, comprising the 12 laser
beams and the optical system to register the image in a high-sensitive CCD sensor, has been proved by
taking images of the trapped and cooled 40Ca+ ions. This demonstrates the functionality of the
proposed laser-based mass-spectrometry technique, providing a unique platform for precision
experiments with implications in different fields of physics.This work was supported by the European Research Council (contract no. 278648-TRAPSENSOR), from the
SpanishMINECO/ FEDER (project nos. FPA2012-32076, FPA2015-67694-P, FIS2015-69983-P, UNGR10-1E-
501, UNGR13-1E-1830), Ramón y Cajal Grant RYC-2012-11391, Juan de la Cierva grant IJCI-2015-26091,
Centro Nacional de PartÃculas, AstropartÃculas y Nuclear CPAN13-TM01, and ‘Sistema Nacional de GarantÃa
Juvenil y del Programa Operativo de Empleo Juvenil’; from the SpanishMECD(PhD grant nos. FPU15-04679
and FPU17/02596); from Junta de AndalucÃa/FEDER (project no. IE-57131) and ‘Programa de Empleo Juvenil;
from Basque Government (PhD grant no. PRE-2015-1-0394) and (project no. IT986-16), and from the
University of Granada ‘Plan propio-Programa de Intensificación de la Investigación PP2017-PRI.I-04’. I.A, L.L.
and E.S acknowledge also support from projects OpenSuperQ (820363) and QMiCS (820505) of the EUFlagship
on Quantum Technologies
Role of biological and non biological factors in congestive heart failure mortality: PREDICE-SCORE: A clinical prediction rule
Background: Congestive heart failure (HF) is a chronic, frequent and disabling condition but with a modifiable course and a large potential for improving. The aim of this project was to develop a clinical prediction model of biological and non biological factors in patients with first diagnosis of HF that facilitates the risk-stratification and decision-making process at the point of care. Methods and Results: Historical cohort analysis of 600 patients attended at three tertiary hospitals and diagnosed of a first episode of HF according Framingham criteria. There were followed 1 year. We analyzed sociodemographic, clinical and laboratory data with potential prognostic value. The modelling process concluded into a logistic regression multivariable analysis and a predictive rule: PREDICE SCORE. Age, dependency for daily basic activities, creatinine clearance, sodium levels at admission and systolic dysfunction diagnosis (HF with left ventricular ejection fraction < 40%) were the selected variables. The model showed a c-statistic of 0.763. PREDICE Score, has range of 22 points to stratifications of 1-year mortality. Conclusions: The follow-up of 600 patients hospitalized by a first episode of congestive HF, allowed us to obtain a predictive 1 year mortality model from the combination of demographic data, routine biochemistry and easy handling social and functional variables at the point of care. The variables included were non-invasive, undemanding to collect, and widely available. It allows for risk stratification and therapeutical targeting and may help in the clinical decisions process in a sustainable way
Serum micrornas as tool to predict early response to benralizumab in severe eosinophilic asthma
Severe eosinophilic asthma poses a serious health and economic problem, so new therapy approaches have been developed to control it, including biological drugs such as benralizumab, which is a monoclonal antibody that binds to IL-5 receptor alpha subunit and depletes peripheral blood eosinophils rapidly. Biomarkers that predict the response to this drug are needed so that microRNAs (miRNAs) can be useful tools. This study was performed with fifteen severe eosinophilic asthmatic patients treated with benralizumab, and serum miRNAs were evaluated before and after treatment by semi-quantitative PCR (qPCR). Patients showed a clinical improvement after benralizumab administration. Additionally, deregulation of miR-1246, miR-5100 and miR-338-3p was observed in severe asthmatic patients after eight weeks of therapy, and a correlation was found between miR-1246 and eosinophil counts, including a number of exacerbations per year in these severe asthmatics. In silico pathway analysis revealed that these three miRNAs are regulators of the MAPK signaling pathway, regulating target genes implicated in asthma such as NFKB2, NFATC3, DUSP1, DUSP2, DUSP5 and DUSP16. In this study, we observed an altered expression of miR-1246, miR-5100 and miR-338-3p after eight weeks of benralizumab administration, which could be used as early response markers.This manuscript was funded by Fondo de Investigación Sanitaria–FIS and FEDER (Fondo
Europeo de Desarrollo Regional) [PI15/00803, PI18/00044, and FI16/00036], CIBER de Enfermedades
Respiratorias (CIBERES), Merck Health Foundation funds, and Ministerio de Ciencia, Innovación y Universidades (RTC-2017-6501-1
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