967 research outputs found

    La Evolución Política Exterior Norteamericana en el s. XIX y el Conflicto Cubano (1898)

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    "Esta República que nació pigmea y ha necesitado del apoyo y fuerza de dos estados tan poderosos como España y Francia, para conseguir su independencia, llegará un día en que crezca y se torne gigante y aún coloso territorio, en aquellas regiones. Entonces olvidará de los beneficios que ha recibido de las dos potencias y solo pensará en su engrandecimiento... El primer paso será apoderarse de las Floridas. Después de molestarnos así y en nuestras relaciones con la Nueva España (México), aspirará a la conquista de este vasto imperio, que no podremos defender contra una potencia formidable, establecida en el mismo continente y vecina suya..."."This Republic, which was born pygmy and has needed the support and strength of two states as powerful as Spain and France to achieve its independence, will reach a day in which it will grow and will become a giant and even a colossal territory in those regions. Then, it will forget the benefits it received from these two powers and will only think about its own enlargement... The first step will be to seize the Florida’s. After annoying us in this way and in our relations with the New Spain (Mexico), it will aspire to conquer this vast empire we shall not be able to defend against a formidable power ser in the same continent being its own neighbour..."

    Haematological assessment of four amazonian ornamental armoured catfish (Teleostei, Loricariidae).

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    Made available in DSpace on 2018-03-30T00:40:59Z (GMT). No. of bitstreams: 1 395541860812PB.pdf: 518255 bytes, checksum: 7835a3e470b8ad43ccd5aa8dd92e46b9 (MD5) Previous issue date: 2018-03-29bitstream/item/174748/1/39554-186081-2-PB.pd

    Direct measurement of homovanillic, vanillylmandelic and 5-hydroxyindoleacetic acids in urine by capillary electrophoresis

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    Abstract Separation conditions in CE, with a neutral coated capillary and reversed polarity, have been optimised to make direct measurement of vanillylmandelic acid, homovanillic acid and 5-hydroxyindoleacetic acid possible in urine samples without pre-treatment. The method developed has been validated, presenting adequate parameters for linearity, accuracy and precision. Detection limits range from 0.03 to 2.5 mM. Finally the method has been applied to urine samples taken from patients, both adults and children, in hospital. Some of them were also measured by immunoassay and HPLCelectrochemical detection and results have been compared

    Transnational cooperation in enhancing researchers’ wider employability: the TRANSPEER project

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    The purpose of this paper is to provide an example of best practice towards enhancing employability in the cross-sectoral labour market for doctorate-holders. This was achieved through an Erasmus+ KA2 (Strategic Partnership) skills development project which created a training programme (TRANSPEER) involving a multi-disciplinary cohort of researchers at a range of career stages, drawn from universities in Norway, Portugal, Sweden and the UK.info:eu-repo/semantics/publishedVersio

    New Biochemical Insights into the Mechanisms of Pulmonary Arterial Hypertension in Humans

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    Diagnosis of pulmonary arterial hypertension (PAH) is difficult due to the lack of specific clinical symptoms and biomarkers, especially at early stages. We compared plasma metabolic fingerprints of PAH patients (n = 20) with matched healthy volunteers (n = 20) using, for the first time, untargeted multiplatform metabolomics approach consisting of high-performance liquid and gas chromatography coupled with mass spectrometry. Multivariate statistical analyses were performed to select metabolites that contribute most to groups' classification (21 from liquid in both ionization modes and 9 from gas chromatography-mass spectrometry). We found metabolites related to energy imbalance, such as glycolysis-derived metabolites, as well as metabolites involved in fatty acid, lipid and amino acid metabolism. We observed statistically significant changes in threitol and aminomalonic acid in PAH patients, which could provide new biochemical insights into the pathogenesis of the disease. The results were externally validated on independent case and control cohorts, confirming up to 16 metabolites as statistically significant in the validation study. Multiplatform metabolomics, followed by multivariate chemometric data analysis has a huge potential for explaining pathogenesis of PAH and for searching potential and new more specific and less invasive markers of the disease.This research was supported by the Polish National Science Center (2014/13/N/NZ7/04231), the Spanish Ministry of Economy and Competitiveness (MINECO) (SAF2014-58920R), by the Fondo de Investigacion Sanitaria del Instituto de Salud Carlos III and co-funding by Fondo Europeo de Desarrollo Regional (FEDER) (PI14-01427), and by the quality-promoting subsidy from the Ministry of Science and Higher Education of Poland, Leading National Research Centre (KNOW programme 2012-2017). The CNIC is supported by the Spanish Ministry of Economy and Competitiveness and the Pro-CNIC Foundation, and is a Severo Ochoa Center of Excellence (MINECO award SEV-2015-0505). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.S

    Utilization of low-molecular-weight organic compounds by the filterable fraction of a lotic microbiome

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    [EN] Filterable microorganisms participate in dissolved organic carbon (DOC) cycling in freshwater systems, however their exact functional role remains unknown. We determined the taxonomic identity and community dynamics of prokaryotic microbiomes in the 0.22 µm-filtered fraction and unfiltered freshwater from the Conwy River (North Wales, UK) in microcosms and, using targeted metabolomics and 14C-labelling, examined their role in the utilization of amino acids, organic acids and sugars spiked at environmentally-relevant (nanomolar) concentrations. To identify changes in community structure, we used 16S rRNA amplicon and shotgun sequencing. Unlike the unfiltered water samples where the consumption of DOC was rapid, the filtered fraction showed a 3-day lag phase before the consumption started. Analysis of functional categories of clusters of orthologous groups of proteins (COGs) showed that COGs associated with energy production increased in number in both fractions with substrate addition. The filtered fraction utilized low-molecular-weight (LMW) DOC at much slower rates than the whole community. Addition of nanomolar concentrations of LMW DOC did not measurably influence the composition of the microbial community nor the rate of consumption across all substrate types in either fraction. We conclude that due to their low activity, filterable microorganisms play a minor role in LMW DOC processing within a short residence time of lotic freshwater systems.This work was carried out under the DOMAINE project, which is funded by the UK Natural Environment Research Council (NERC) (large grant NE/K010689/1). D.L.J., O.V.G. and P.N.G. acknowledge the support of the Centre for Environmental Biotechnology Project funded by the European Regional Development Fund (ERDF) through the Welsh Government. D.L.J. and P.N.G. thank Natural Environment Research Council (NERC) for funding the project ‘Plastic Vectors’ (NE/S004548/1). 16S rRNA sequencing and thework of A.A.K.was supported by a grant from Ministry of Science and Higher Education of Russian Federation allocated to the Kurchatov Center for Genome Research (grant 075–15-2019–1659). The work of S.V.T. was supported by Ministry of Science and Higher Education within the State assignment of FRC ‘Fundamentals of Biotechnology’ RAS
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