73 research outputs found

    Incorporating the water footprint and virtual water into policy: reflections from the Mancha Occidental Region, Spain

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    Water resource management is often a controversial issue in semiarid regions. Most water resources experts admit that water conflicts are not caused by the physical water scarcity but they are mainly due to inadequate water management. The virtual water concept (the volume of water used in the production of a commodity, good or service) together with the water footprint (indicator of water consumption that looks at both direct and indirect water use of a consumer or producer), links a large range of sectors and issues, thus providing a potentially appropriate framework to support more optimal water management practices by informing production and trade decisions. This paper provides an analysis of these two concepts within the context of the Mancha Occidental region, Spain, exploring the hydrological and economic aspects of agricultural production. In doing so, this work not only distinguishes between green and blue water but also between surface and groundwater. We conclude by discussing the practical implications of the results, as well as their potential limitations from the policy standpoint

    The water footprint of olives and olive oil in Spain

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    This paper evaluates the water footprint of Spanish olives and olive oil over the period 1997-2008. In particular, it analyses the three colour components of the water footprint: green (rainwater stored in the soil), blue (surface and groundwater) and grey (freshwater required to assimilate load of pollutants). Apparent water productivity and virtual water embedded in olive oil exports have also been studied. Results show more than 99.5% of the water footprint of one liter of bottled olive oil is related to the olive production, whereas less than 0.5% is due to the other components such as bottle, cap and label. Over the studied period, the green water footprint in absolute terms of Spanish olive oil production represents about 72% in rainfed systems and just 12% in irrigated olive orchards. Blue and grey water footprints represent 6% and 10% of the national water footprint, respectively. It is shown that olive production is concentrated in regions with the smallest water footprint per unit of product. However, the increase of groundwater consumption in the main olive producing region (Andalusia), from 98 to 378 Mm3 between 1997 and 2008, has added significant pressure in the upstream Guadalquivir basin. This raises questions about the sustainability of irrigated olive orchards for export from the region. Finally, the virtual water related to olive oil exports illustrate the importance of green water footprint of rainfed olives amounting to about 77% of the total virtual water exports

    Importancia del conocimiento de la huella hidrológica para la política española del agua

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    En casi todos los países áridos o semiáridos la adecuada gestión de los recursos hídricos es un tema tan importante como conflictivo. La mayor parte de los expertos en gestión de recursos hídricos suele admitir hoy que los conflictos hídricos no se deben normalmente a la escasez física de agua sino a su inadecuada gestión. Los avances en la Ciencia y en la Tecnología que se han producido en el último medio siglo permiten resolver muchos de los problemas relacionados con conflictos hídricos con medios que hace pocas décadas nadie podía imaginar. El presente documento se centra en el estudio de la HUELLA HIDROLÓGICA y sus relacionados conceptos de agua virtual y sus componentes verde y azul. Este trabajo se enfoca no sólo desde la clásica perspectiva hidrológica sino también enfatizando los datos económicos. El estudio de la huella hidrológica está haciendo cambiar los conceptos de seguridad alimentaria e hidrológica que han estado vigentes durante siglos en la mente de la mayor parte de los políticos de todo el mundo. Los datos disponibles ponen claramente de manifiesto que la producción de alimentos es, a escala mundial, el principal usuario de agua verde y azul a gran diferencia de los otros usos. Por ello, este trabajo preliminar de otros estudios en marcha, se dedica principalmente al estudio del agua en la agricultura. La política del agua de un país va a estar cada día más íntimamente relacionada con su política agrícola, tanto de producción de alimentos como de su importación y/o exportación. Al mismo tiempo hay que tener en cuenta que en los países industrializados, como es España, los condicionantes ambientales van adquiriendo más peso y que consciente o inconscientemente el viejo lema “more crops and jobs per drop” está cambiando al lema “more cash and nature per drop”

    Virtual Water and Water Footprint: A Case Study from Spain

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    The World Water Week in Stockholm is the annual meeting place for the planet’s most urgent water-related issues. Organised by the Stockholm International Water Institute (SIWI), it brings together experts, practitioners, decision makers and leader

    The importance of environmental education in students: analyzing the transition from middle to high school in Nuevo Laredo, Tamaulipas, Mexico

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    A research was conducted with 246 first-semester high school students in Nuevo Laredo, Tamaulipas, Mexico with the aim of discovering if they had received extracurricular environmental education during middle school and how this training could influence their perceptions and positions towards environmental topics. Only 167 participants reported receiving extracurricular environmental education in middle school. The other 79 participants admitted not having done so. The same questionnaire with sentences on water culture, recycling, species care and transportation, as well as on the general knowledge of the environment and its regulations was applied to all the students. SPSS was used to categorize the two groups and perform nonparametric Mann-Whitney tests, which revealed that students who received additional environmental education in middle school showed a better attitude towards water care. To interpret our results, it is necessary to consider that the study was conducted only in the city of Nuevo Laredo, Tamaulipas and that a convenience sampling was used. Our findings also showed that there are still students who do not get enough environmental education. We conclude that it is important to intensify efforts to change this situation, since training on the environment has been shown to positively influence the attitudes of the students who received it.Objective: A poll on first-semester high school students (n = 246) took place at NuevoLaredo, Tamaulipas, Mexico, to find out if they received environmental education as anextracurricular class during middle school and how this training could influence theirperceptions and positions on environmental issues.Design/methodology/approach: A questionnaire that contained aspects regard waterculture, recycling, species care and transportation, as well as general knowledge of theenvironment and its regulations, was applied to students. The SPSS statistical software wasused to categorize two groups: students who received extracurricular environmentaleducation and those who did not. Subsequently, the non-parametric Mann Whitney testswere performed on the data.Results: Out of the total number of participants, 167 said they had received extracurricularenvironmental education in middle school. The other 79 participants reported not to havedone so. Students who received more environmental education in middle school exhibit abetter attitude regard water management. Limitations of the study/implications: To interpret the results, it is necessary to considerthat the study took place only in the city of Nuevo Laredo, Tamaulipas and that aconvenience sampling was used.Findings / Conclusions: There are still students that do not receive enough environmentaleducation. We conclude that it is important to intensify efforts to change this situation, asenvironmental training has shown to positively influence the attitudes of students whoreceived it

    Inter-Rater Variability in the Evaluation of Lung Ultrasound in Videos Acquired from COVID-19 Patients

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    12 páginas, 7 figuras, 1 tablaLung ultrasound (LUS) allows for the detection of a series of manifestations of COVID-19, such as B-lines and consolidations. The objective of this work was to study the inter-rater reliability (IRR) when detecting signs associated with COVID-19 in the LUS, as well as the performance of the test in a longitudinal or transverse orientation. Thirty-three physicians with advanced experience in LUS independently evaluated ultrasound videos previously acquired using the ULTRACOV system on 20 patients with confirmed COVID-19. For each patient, 24 videos of 3 s were acquired (using 12 positions with the probe in longitudinal and transverse orientations). The physicians had no information about the patients or other previous evaluations. The score assigned to each acquisition followed the convention applied in previous studies. A substantial IRR was found in the cases of normal LUS (κ = 0.74), with only a fair IRR for the presence of individual B-lines (κ = 0.36) and for confluent B-lines occupying 50% (κ = 0.50). No statistically significant differences between the longitudinal and transverse scans were found. The IRR for LUS of COVID-19 patients may benefit from more standardized clinical protocols.This research was partially funded by CDTI (Spanish acronym: Centre for Industrial Tech- nological Development), funding number COI-20201153. Partially supported by the Google Cloud Research Credits program with the funding number GCP19980904, by the project RTI2018-099118- A-I00 founded by MCIU/AEI/FEDER UE and by the European Commission–NextGenerationEU, through CSIC’s Global Health Platform (PTI Salud Global)

    The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden’s Star

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    Context.Teegarden’s Star is the brightest and one of the nearest ultra-cool dwarfs in the solar neighbourhood. For its late spectral type (M7.0 V),the star shows relatively little activity and is a prime target for near-infrared radial velocity surveys such as CARMENES.Aims.As part of the CARMENES search for exoplanets around M dwarfs, we obtained more than 200 radial-velocity measurements of Teegarden’sStar and analysed them for planetary signals.Methods.We find periodic variability in the radial velocities of Teegarden’s Star. We also studied photometric measurements to rule out stellarbrightness variations mimicking planetary signals.Results.We find evidence for two planet candidates, each with 1.1M⊕minimum mass, orbiting at periods of 4.91 and 11.4 d, respectively. Noevidence for planetary transits could be found in archival and follow-up photometry. Small photometric variability is suggestive of slow rotationand old age.Conclusions.The two planets are among the lowest-mass planets discovered so far, and they are the first Earth-mass planets around an ultra-cooldwarf for which the masses have been determined using radial velocities.We thank the referee Rodrigo Díaz for a careful review andhelpful comments. M.Z. acknowledges support from the Deutsche Forschungs-gemeinschaft under DFG RE 1664/12-1 and Research Unit FOR2544 “BluePlanets around Red Stars”, project no. RE 1664/14-1. CARMENES isan instrument for the Centro Astronómico Hispano-Alemán de Calar Alto(CAHA, Almería, Spain). CARMENES is funded by the German Max-Planck-Gesellschaft (MPG), the Spanish Consejo Superior de InvestigacionesCientíficas (CSIC), the European Union through FEDER/ERF FICTS-2011-02 funds, and the members of the CARMENES Consortium (Max-Planck-Institut für Astronomie, Instituto de Astrofísica de Andalucía, LandessternwarteKönigstuhl, Institut de Ciències de l’Espai, Institut für Astrophysik Göttingen,Universidad Complutense de Madrid, Thüringer Landessternwarte Tautenburg,Instituto de Astrofísica de Canarias, Hamburger Sternwarte, Centro de Astro-biología and Centro Astronómico Hispano-Alemán), with additional contribu-tions by the Spanish Ministry of Economy, the German Science Foundationthrough the Major Research Instrumentation Programme and DFG ResearchUnit FOR2544 “Blue Planets around Red Stars”, the Klaus Tschira Stiftung, thestates of Baden-Württemberg and Niedersachsen, and by the Junta de Andalucía.Based on data from the CARMENES data archive at CAB (INTA-CSIC). Thisarticle is based on observations made with the MuSCAT2 instrument, devel-oped by ABC, at Telescopio Carlos Sánchez operated on the island of Tener-ife by the IAC in the Spanish Observatorio del Teide. Data were partly col-lected with the 150-cm and 90-cm telescopes at the Sierra Nevada Observa-tory (SNO) operated by the Instituto de Astrofísica de Andalucía (IAA-CSIC).Data were partly obtained with the MONET/South telescope of the MOnitoringNEtwork of Telescopes, funded by the Alfried Krupp von Bohlen und HalbachFoundation, Essen, and operated by the Georg-August-Universität Göttingen,the McDonald Observatory of the University of Texas at Austin, and the SouthAfrican Astronomical Observatory. We acknowledge financial support from theSpanish Agencia Estatal de Investigación of the Ministerio de Ciencia, Inno-vación y Universidades and the European FEDER/ERF funds through projectsAYA2015-69350-C3-2-P, AYA2016-79425-C3-1/2/3-P, AYA2018-84089, BES-2017-080769, BES-2017-082610, ESP2015-65712-C5-5-R, ESP2016-80435-C2-1/2-R, ESP2017-87143-R, ESP2017-87676-2-2, ESP2017-87676-C5-1/2/5-R, FPU15/01476, RYC-2012-09913, the Centre of Excellence ”Severo Ochoa”and ”María de Maeztu” awards to the Instituto de Astrofísica de Canarias (SEV-2015-0548), Instituto de Astrofísica de Andalucía (SEV-2017-0709), and Cen-tro de Astrobiología (MDM-2017-0737), the Generalitat de Catalunya throughCERCA programme”, the Deutsches Zentrum für Luft- und Raumfahrt throughgrants 50OW0204 and 50OO1501, the European Research Council through grant694513, the Italian Ministero dell’instruzione, dell’università de della ricerca andUniversità degli Studi di Roma Tor Vergata through FFABR 2017 and “Mis-sion: Sustainability 2016”, the UK Science and Technology Facilities Council through grant ST/P000592/1, the Israel Science Foundation through grant848/16, the Chilean CONICYT-FONDECYT through grant 3180405, the Mexi-can CONACYT through grant CVU 448248, the JSPS KAKENHI through grantsJP18H01265 and 18H05439, and the JST PRESTO through grant JPMJPR1775

    Encuentro Invesderm. Estableciendo Redes de Investigación en Deontología

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    Datos técnicos: 388 minutos, color, español. Ficha técnica: Gabinete de Presidencia CSIC y Departamento de Comunicación. Emitido en directo el 5 junio 2024INVESDERM es la primera acción conjunta entre la Academia Española de Dermatología y Venereología (AEDV) y el Consejo Superior de Investigaciones Científicas (CSIC) para establecer puentes entre investigadores básicos y clínicos en el área de la Dermatología y la Venereología. Esta reunión pretende ser una puesta en común de algunos investigadores del CSIC y de la AEDV, contando lo que hacen, lo que cada uno puede ofrecer, las carencias detectadas y las posibilidades de interacción en un contexto de investigación traslacional. El programa de INVESDERM2024 se estructura en 4 mesas redondas dinámicas, en las que los moderadores y ponentes intentarán conectar con los asistentes y motivar la interacción entre todos en los espacios. El objetivo es establecer lazos y gérmenes de colaboración entre investigadores básicos y clínicos.N

    Role of age and comorbidities in mortality of patients with infective endocarditis

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    [Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. [Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. [Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. [Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group
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