26 research outputs found

    Cultivando el emprendimiento en estudiantes de primer curso de QuĂ­mica

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    En el presente trabajo, desarrollado en el seno de la asignatura operaciones básicas de laboratorio II (OBLII), se ha llevado a cabo la adquisición de competencias emprendedoras por parte de estudiantes de primer curso de la titulación de química mediante un programa de tutorización realizado por estudiantes de postgrado y últimos cursos de la titulación. Con esta actividad se pretende iniciar a los estudiantes de primer curso en actividades que fomenten el espíritu emprendedor a través del trabajo en equipo, la capacidad de comunicación oral y escrita, y la evaluación crítica de su propio trabajo y el de sus compañeros. Para desarrollar esta actividad los estudiantes de primer curso han realizado un trabajo bibliográfico en equipos de cuatro componentes que han sido supervisados por parte de los estudiantes senior. Con el objetivo de provocar la reflexión de los estudiantes de primer curso en las tres competencias fundamentales del proyecto (trabajo en equipo, comunicación y evaluación objetiva), los grupos de trabajo han participado en tres dinámicas de trabajo, dirigidas por los estudiantes senior, basadas en cada una de esas tres competencias emprendedoras. Los resultados de esas dinámicas y la opinión de los estudiantes sobre las mismas se recogen en el presente trabajo

    Populism in context. A cross-country investigation of the Facebook usage of populist appeals during the 2019 European Parliament elections

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    By providing populist movements with a suitable platform to invoke the support of ordinary people against the establishment, research has found that social media has facilitated the rise of populism in many Western democracies (Gerbaudo, 2018). Significant scholarly attention has recently been paid to how populist rhetoric is adopted by politicians in various (non)electoral contexts (Jagers & Walgrave, 2007; Bos & Brants, 2014; Ernst et al., 2019) and how such rhetoric diffuses through public discourse (Mazzoleni & Bracciale, 2018). However, while much existing scholarship has primarily focused on the prevalence of populist communication in political discourse (Reinemann et al., 2016; Ernst et al., 2019), less attention has been paid to the overall context of its use. This is an important shortcoming because if populist communication is a strategic tool (Weyland, 2001), it is important to uncover the conditions under which it is more or less likely to appear. In this paper we focus on these conditions through a more granular analysis of the use of populist appeals. First, at the (social media) post-level, we examine whether variations in content (topics and political level) are related to the use of populist appeals. Further, we bring attention to the relationship between populist appeals and party-level ideological leaning. We do this analysis within the context of the 2019 European Parliamentary (EP) elections, applying a quantitative content analysis of 8,074 Facebook posts from political parties representing twelve states and from across the ideological spectrum

    Legionnaires’ Disease Outbreak in Murcia, Spain

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    An explosive outbreak of Legionnaires’ disease occurred in Murcia, Spain, in July 2001. More than 800 suspected cases were reported; 449 of these cases were confirmed, which made this the world’s largest outbreak of the disease reported to date. Dates of onset for confirmed cases ranged from June 26 to July 19 , with a case-fatality rate of 1%. The epidemic curve and geographic pattern from the 600 completed epidemiologic questionnaires indicated an outdoor point-source exposure in the northern part of the city. A case-control study matching 85 patients living outside the city of Murcia with two controls each was undertaken to identify the outbreak source; the epidemiologic investigation implicated the cooling towers at a city hospital. An environmental isolate from these towers with an identical molecular pattern as the clinical isolates was subsequently identified and supported that epidemiologic conclusion

    OBL_2015

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    En el presente trabajo se ha llevado a cabo la adquisición de competencias emprendedoras por parte de estudiantes de primer curso del Grado en Química mediante un programa de mentorización realizado por estudiantes de postgrado y últimos cursos de la titulación a través de un trabajo en equipo que se desarrolla en la asignatura OBLII, que se imparte en el segundo semestre del primer curso de la titulación. Con esta actividad se pretende dotar a los estudiantes de primer curso de espíritu emprendedor a través del trabajo en equipo, la capacidad de comunicación oral y escrita y la evaluación crítica y objetiva. Para desarrollar esta actividad los estudiantes de primer curso han realizado un trabajo bibliográfico en equipos de cuatro componentes supervisados por estudiantes senior. Para conseguir el objetivo de hacer reflexionar a los estudiantes de primer curso en las tres competencias fundamentales del proyecto (trabajo en equipo, comunicación y evaluación objetiva), así como su posterior adquisición, los grupos de trabajo han participado en tres actividades, dirigidas por los estudiantes senior, basadas en cada una de esas tres competencias emprendedoras. Los resultados de esas dinámicas y la opinión de los estudiantes sobre las mismas son recogidas a lo largo del presente trabajo

    IMPACT-Global Hip Fracture Audit: Nosocomial infection, risk prediction and prognostication, minimum reporting standards and global collaborative audit. Lessons from an international multicentre study of 7,090 patients conducted in 14 nations during the COVID-19 pandemic

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    Molecular Characterization of Disease-Associated Streptococci of the Mitis Group That Are Optochin Susceptible

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    Eight optochin-susceptible (Opt(s)) alpha-hemolytic (viridans) streptococcus isolates were characterized at the molecular level. These isolates showed phenotypic characteristics typical of both viridans streptococci and Streptococcus pneumoniae. Comparison of the sequence of housekeeping genes from these isolates with those of S. pneumoniae, Streptococcus mitis, Streptococcus oralis, and Streptococcus pseudopneumoniae suggested that the Opt(s) isolates corresponded to streptococci of the mitis group. Besides, the Opt(s) streptococci were negative by a Gen-Probe AccuProbe pneumococcus test and hybridized with specific pneumococcal probes (lytA and ply) but also with ant, a gene not present in most S. pneumoniae strains. Moreover, the isolates were insoluble in 1% sodium deoxycholate but completely dissolved in 0.1% deoxycholate. Sequence analysis of the lytA gene revealed that the Opt(s) streptococci carried lytA alleles characteristic of those present in nonpneumococcal streptococci of the mitis group. The determination of the partial nucleotide sequence embracing the atp operon encoding the F(o)F(1) H(+)-ATPase indicated that the optochin susceptibility of the isolates was due to the acquisition of atpC, atpA, and part of atpB from S. pneumoniae by horizontal gene transfer

    ICOS deficiency hampers the homeostasis, development and function of NK cells

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    26 p.-8 fig.Signaling through the inducible costimulator ICOS is required for the homeostasis and function of various immune cell populations, with an outstanding role in the generation and maintenance of germinal centers. Very recently, it has been suggested that the clinical phenotype of ICOS-deficient patients is much broader than initially anticipated and the innate immune response might be also affected. However, the role of the ICOS/ICOS-Ligand axis in the homeostasis and development of innate NK cells is not known, and reports on its participation in NK cell activation are scarce. NK cells may express low levels of ICOS that are markedly enhanced upon activation. We show here that ICOS-deficient (ICOS-KO) mice present low NK cell numbers and defects in the homeostasis of these cells, with delayed maturation and altered expression of the developmental NK cell markers CD122, NK1.1, CD11b or CD27. Our experiments in mixed bone marrow chimera mice indicate that, both, cell-intrinsic defects of ICOS-KO NK and deficiencies in the milieu of these mice contribute to the altered phenotype. ICOS-deficient NK cells show impaired production of IFN-γ and cytotoxicity, and a final outcome of defects in NK cell-mediated effector function during the response to poly(I:C) or vaccinia virus infection in vivo. Interestingly, we show that murine innate cells like IL-2-cultured NK and bone marrow-derived dendritic cells can simultaneously express ICOS and ICOS-Ligand; both molecules are functional in NK intracellular signaling, enhancing early phosphorylation of Akt and Erk, or IFN-γ secretion in IL-2-activated NK cells. Our study shows the functional importance of the ICOS/ICOS-L pair in NK cell homeostasis, differentiation and activity and suggests novel therapeutic targets for NK manipulation.This work was supported by grants from the Acción Estratégica en Salud (Instituto de Salud Carlos III, ISCIII, MINECO, Spain) (PI13/02153 and PI16CIII/00012 to P.P.; PI13/01809 to J.M.R.; and PI14/00049 to BdA); grants from Ministerio de Economía y Competitividad MINECO/FEDER, Spain (SAF2015-70880-R to M.L.G. and SAF2014-58052 to D.L.); and grants from Associazione Italiana per la Ricerca sul Cancro, AIRC, Milan (IG20714) and the Fondazione Amici di Jean, Torino, Italy (to U.D.).Peer reviewe

    OBL_2015

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    En el presente trabajo se ha llevado a cabo la adquisición de competencias emprendedoras por parte de estudiantes de primer curso del Grado en Química mediante un programa de mentorización realizado por estudiantes de postgrado y últimos cursos de la titulación a través de un trabajo en equipo que se desarrolla en la asignatura OBLII, que se imparte en el segundo semestre del primer curso de la titulación. Con esta actividad se pretende dotar a los estudiantes de primer curso de espíritu emprendedor a través del trabajo en equipo, la capacidad de comunicación oral y escrita y la evaluación crítica y objetiva. Para desarrollar esta actividad los estudiantes de primer curso han realizado un trabajo bibliográfico en equipos de cuatro componentes supervisados por estudiantes senior. Para conseguir el objetivo de hacer reflexionar a los estudiantes de primer curso en las tres competencias fundamentales del proyecto (trabajo en equipo, comunicación y evaluación objetiva), así como su posterior adquisición, los grupos de trabajo han participado en tres actividades, dirigidas por los estudiantes senior, basadas en cada una de esas tres competencias emprendedoras. Los resultados de esas dinámicas y la opinión de los estudiantes sobre las mismas son recogidas a lo largo del presente trabajo

    POLAR-guided signalling complex assembly and localization drive asymmetric cell division

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    Stomatal cell lineage is an archetypal example of asymmetric cell division (ACD), which is necessary for plant survival1–4. In Arabidopsis thaliana, the GLYCOGEN SYNTHASE KINASE3 (GSK3)/SHAGGY-like kinase BRASSINOSTEROID INSENSITIVE 2 (BIN2) phosphorylates both the mitogen-activated protein kinase (MAPK) signalling module5,6 and its downstream target, the transcription factor SPEECHLESS (SPCH)7, to promote and restrict ACDs, respectively, in the same stomatal lineage cell. However, the mechanisms that balance these mutually exclusive activities remain unclear. Here we identify the plant-specific protein POLAR as a stomatal lineage scaffold for a subset of GSK3-like kinases that confines them to the cytosol and subsequently transiently polarizes them within the cell, together with BREAKING OF ASYMMETRY IN THE STOMATAL LINEAGE (BASL), before ACD. As a result, MAPK signalling is attenuated, enabling SPCH to drive ACD in the nucleus. Moreover, POLAR turnover requires phosphorylation on specific residues, mediated by GSK3. Our study reveals a mechanism by which the scaffolding protein POLAR ensures GSK3 substrate specificity, and could serve as a paradigm for understanding regulation of GSK3 in plants.Fil: Houbaert, Anaxi. University of Ghent; BélgicaFil: Zhang, Cheng. University of Ghent; BélgicaFil: Tiwari, Manish. University of Ghent; BélgicaFil: Wang, Kun. Wuhan University; China. University of Ghent; BélgicaFil: Marcos Serrano, Alberto de. Universidad de Castilla-La Mancha; EspañaFil: Savatin, Daniel V.. University of Ghent; BélgicaFil: Urs, Mounashree J.. University of Ghent; BélgicaFil: Zhiponova, Miroslava. University of Sofia; Bulgaria. University of Ghent; BélgicaFil: Gudesblat, Gustavo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. University of Ghent; BélgicaFil: Vanhoutte, Isabelle. University of Ghent; BélgicaFil: Eeckhout, Dominique. University of Ghent; BélgicaFil: Boeren, Sjef. Wageningen University; Países BajosFil: Karimi, Mansour. University of Ghent; BélgicaFil: Betti, Camilla. University of Ghent; Bélgica. Università di Perugia; ItaliaFil: Jacobs, Thomas. University of Ghent; BélgicaFil: Fenoll, Carmen. Universidad de Castilla-La Mancha; EspañaFil: Mena, Montaña. Universidad de Castilla-La Mancha; EspañaFil: de Vries, Sacco. Wageningen University; Países BajosFil: De Jaeger, Geert. University of Ghent; BélgicaFil: Russinova, Eugenia. University of Ghent; Bélgic
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