235 research outputs found

    Self-perceptions in the student leadership exercise at the university of Granada

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    Este trabajo se centra en la autopercepción del ejercicio del liderazgo estudiantil, ésta es un constructo esencial para realizar políticas universitarias de fomento, capacitación y fortalecimiento de la representación estudiantil. El objetivo de nuestra investigación es conocer las autopercepciones del liderazgo ejercido por los estudiantes universitarios de la Facultad de Ciencias de la Educación de la Universidad de Granada y comprobar así si aquellos que ostentan un cargo de representación son verdaderos líderes. Para analizar el constructo hemos realizado una revisión de estudios sobre liderazgo y sobre representación estudiantil en la Educación Superior. Se han revisado los instrumentos que se muestran más eficaces en la caracterización del liderazgo y seleccionado el más adecuado a nuestros objetivos, S-LPI de Kouzes y Posner (2008), aplicándolo a la población de representantes estudiantiles de la Facultad de Educación de la Universidad de Granada. En este sentido, el trabajo se acoge a un interés descriptivo mediante un estudio cuantitativo de diseño no experimental utilizando una encuesta como instrumento de recogida de información, cuyo principal objetivo es conocer la autopercepción del liderazgo ejercido por los estudiantes universitarios de la Facultad de Ciencias de la Educación de la Universidad de Granada en sus distintas dimensiones. Los resultados han permitido hacer una descripción de datos sociodemográficos de líderes estudiantiles a la vez que analizar las autopercepciones que realizan en el ejercicio del liderazgo, siendo la dimensión mejor valorada capacitar a los demás y la que menos eficacia ante el cambio. Por tanto, concluimos presentando las carencias que encontramos en nuestros líderes, ya que encontramos que no están preparados para hacer fomentar el cambio y la innovación en el trabajo de los otros, así como asegurarse de que se cumplen los acuerdos a los que se llega. Por último proponemos diseñar un programa de formación en liderazgo, para representantes estudiantiles que les ayude a compensar esas carencias que encuentran en el ejercicio de su cargo.This work focuses on the self-perception of the exercise of student leadership, this is an essential construct to carry out university policies for the promotion, training and strengthening of student representation. The objective of our research is to know the self-perceptions of the leadership exercised by the university students of the Faculty of Education Sciences of the University of Granada and thus verify if those who hold a representative position are true leaders. To analyze the construct we have carried out a review of studies on leadership and student representation in Higher Education. We have reviewed the instruments that are most effective in characterizing leadership and selected the most appropriate to objectives, S-LPI by Kouzes and Posner (2008), applying it to the population of student representatives of the Faculty of Education of the University of Granada . In this sense, our work has a descriptive interest through a quantitative study of non-experimental design using a survey as an instrument for collecting information, the main objective of which is to know the self-perception of leadership exercised by university students of the Faculty of Sciences of Education at the University of Granada in its different dimensions. The results have allowed us to make a description of the sociodemographic data of student leaders at the same time as to analyze the self-perceptions they make in the exercise of leadership, with the best valued dimension being training others and the one that is least effective when faced with change. Therefore, we conclude by presenting the shortcomings that we find in our leaders, since we find that they are not prepared to encourage change and innovation in the work of others, as well as to ensure that the agreements reached are fulfilled. Finally, we propose to design a leadership training program for student representatives to help them compensate for those deficiencies that they find in the exercise of their position

    Leadership and quality in Higher Education

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    En la Universidad del Siglo XXI, la función de liderazgo está en la base de los procesos de surgimiento, mantenimiento e institucionalización de una nueva cultura de la calidad (Fernández Cruz, 2015). En este contexto, las universidades han creado unas Unidades de Calidad como responsables de los procesos de acreditación, seguimiento y renovación de títulos que deben actuar como verdaderos impulsores de unas acciones de mejora para las que resulta indispensable la puesta en marcha de procesos de evaluación y seguimiento que exigen el ejercicio de un liderazgo que fomente una cultura de calidad que impregne el quehacer diario de la institución. Los nuevos Títulos de Grado establecidos dentro del Espacio Europeo de Educación Superior demandan una serie de actuaciones que deben ser ejecutadas por los llamados Coordinadores de Grado como responsables de la coordinación de los equipos docentes. Además de lo anterior, el proceso de internacionalización que conlleva el Espacio Europeo de Educación Superior supone el desarrollo de estrategias de liderazgo a nivel interno, que se han traducido hacia el exterior en un fuerte liderazgo institucional (Cleveland-Innes, 2012; Juárez- Casalengua, 2015), y en un impulso y liderazgo político e institucional de la UE.In the 21st century university, the leadership function is at the base of the processes of emergence, maintenance and institutionalization of a new culture of quality (Fernández Cruz, 2015). In this context, the universities have created Quality Units to facilitate the process of accreditation, monitoring and renewal official degrees. This units must act as real drivers of improvement for which it is essential implement assessment and monitoring procedures that require a leadership that foster a culture quality in the daily activities of the institution. The new official degrees established under European Higher Education Area demand a series of actions that must be carried out by the so-called Degree Coordinators as responsible for the coordination of the teaching teams. In addition to the above, the internationalization that entails the European Higher Education Area implies the development of internal leadership strategies that have been turned into strong institutional leadership (Cleveland-Innes, 2012; Juárez-Casalengua, 2015), and in an impetus and political and institutional leadership of the EU. On the other hand, as most of the research on leadership has traditionally focused on managerial positions, we have wanted to approach from an alternative perspective the leadership function exercised by university students through the different representation positions they perform

    Extreme, wintertime Saharan dust intrusion in the Iberian Peninsula: Lidar monitoring and evaluation of dust forecast models during the February 2017 event

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    The research leading to these results has received funding from the H2020 program from the European Union (grant agreement no. 654109, 778349) and also from the Spanish Ministry of Industry, Economy and Competitiviness (MINECO, ref. CGL2013-45410-R, CGL2016-81092-R, CGL2017-85344-R, TEC2015-63832-P), the Spanish Ministry of Science, Innovation and Universities (ref. CGL2017-90884-REDT); the CommSensLab "Maria de Maeztu" Unity of Excellence (ref. MDM-2016-0600) financed by the Spanish Agencia Estatal de Investigación. Co-funding was also provided by the European Union through the European Regional Development Fund (ref. POCI-01-0145-FEDER-007690, ALT20-03-0145-FEDER-000004, ALT20-03-0145-FEDER-000011); by the Andalusia Regional Government (ref. P12-RNM-2409); by the Madrid Regional Government (projects TIGAS-CM, ref. Y2018/EMT-5177 and AIRTEC-CM, ref. P2018/EMT4329); by the University of Granada through “Plan Propio. Programa 9 Convocatoria 2013” and by the Portuguese Foundation for Science and Technology and national funding (ref. SFRH/BSAB/143164/2019). The BSC-DREAM8b and NNMB/BSC-Dust (now NMMB-MONARCH) model simulations were performed by the Mare Nostrum supercomputer hosted by the Barcelona Supercomputer Center (BSC). S. Basart acknowledges the AXA Research Fund for supporting aerosol research at the BSC through the AXA Chair on Sand and Dust Storms Fund, as well as the InDust project (COST Action CA16202). The authors gratefully acknowledge the NOAA Air Resources Laboratory (ARL) for the provision of the HYSPLIT transport and dispersion model and/or READY website (http://www.ready.noaa.gov) used in this publication.An unprecedented extreme Saharan dust event was registered in winter time from 20 to 23 February 2017 over the Iberian Peninsula (IP). We report on aerosol optical properties observed under this extreme dust intrusion through passive and active remote sensing techniques. For that, AERONET (AErosol RObotic NETwork) and EARLINET (European Aerosol Research LIdar NETwork) databases are used. The sites considered are: Barcelona (41.38°N, 2.17°E), Burjassot (39.51°N, 0.42°W), Cabo da Roca (38.78°N, 9.50°W), Évora (38.57°N, 7.91°W), Granada (37.16°N, 3.61°W) and Madrid (40.45°N, 3.72°W). Large aerosol optical depths (AOD) and low Ångström exponents (AE) are observed. An AOD of 2.0 at 675 nm is reached in several stations. A maximum peak of 2.5 is registered in Évora. During and around the peak of AOD, AEs close to 0 and even slightly negative are measured. With regard to vertically-resolved aerosol optical properties, particle backscatter coefficients as high as 15 Mm−1 sr−1 at 355 nm are recorded at the lidar stations. Layer-mean lidar ratios are found in the range 40–55 sr at 355 nm and 34–61 sr at 532 nm during the event. The particle depolarization ratios are found to be constant inside the dust layer, and consistent from one site to another. Layer-mean values vary in the range 0.19–0.31. Another remarkable aspect of the event is the limited vertical distribution of the dust plume which never exceeds 5 km. The extreme aspect of the event also presented a nice case for testing the ability of two dust forecast models, BSC-DREAM8b and NMMB/BSC-Dust, to reproduce the arrival, the vertical distribution and the intensity of the dust plume over a long-range transport region. In the particular case of the February 2017 dust event, we found a large underestimation in the forecast of the extinction coefficient provided by BSC-DREAM8b at all heights independently of the site. In contrast NMMB/BSC-Dust forecasts presented a better agreement with the observations, especially in southwestern part of the IP. With regard to the forecast skill as a function of lead time, no clear degradation of the prognostic is appreciated at 24, 48 and 72 h for Évora and Granada stations (South). However the prognostic does degrade (bias increases and/or correlation decreases) for Barcelona (North), which is attributed to the fact that Barcelona is at a greater distance from the source region and to the singularity of the event.Funding from the H2020 program from the European Union (grant agreement no. 654109, 778349)Spanish Ministry of Industry, Economy and Competitiviness (MINECO, ref. CGL2013-45410-R, CGL2016-81092-R, CGL2017-85344-R, TEC2015-63832-P)Spanish Ministry of Science, Innovation and Universities (ref. CGL2017-90884-REDT)CommSensLab "Maria de Maeztu" Unity of Excellence (ref. MDM-2016-0600) financed by the Spanish Agencia Estatal de InvestigaciónCo-funding was also provided by the European Union through the European Regional Development Fund (ref. POCI-01-0145-FEDER-007690, ALT20-03-0145-FEDER-000004, ALT20-03-0145-FEDER-000011)Andalusia Regional Government (ref. P12-RNM-2409); by the Madrid Regional Government (projects TIGAS-CM, ref. Y2018/EMT-5177 and AIRTEC-CM, ref. P2018/EMT4329)Portuguese Foundation for Science and Technology and national funding (ref. SFRH/BSAB/143164/2019

    Characterization of Tajogaite volcanic plumes detected over the Iberian Peninsula from a set of satellite and ground-based remote sensing instrumentation

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    Three volcanic plumes were detected during the Tajogaite volcano eruptive activity (Canary Islands, Spain, September–December 2021) over the Iberian Peninsula. The spatiotemporal evolution of these events is characterised by combining passive satellite remote sensing and ground-based lidar and sun-photometer systems. The inversion algorithm GRASP is used with a suite of ground-based remote sensing instruments such as lidar/ ceilometer and sun-photometer from eight sites at different locations throughout the Iberian Peninsula. Satellite observations showed that the volcanic ash plumes remained nearby the Canary Islands covering a mean area of 120 ± 202 km2 during the whole period of eruptive activity and that sulphur dioxide plumes reached the Iberian Peninsula

    Graves' disease is associated with a defective expression of the immune regulatory molecule galectin-9 in antigen-presenting dendritic cells

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    Introduction Patients with autoimmune thyroid disease (AITD) show defects in their immune-regulatory mechanisms. Herein we assessed the expression and function of galectin-1 and galectin-9 (Gal-1, Gal-9) in dendritic cells (DCs) from patients with AITD. Materials and Methods Peripheral blood samples from 25 patients with Graves’ disease (GD), 11 Hashimoto’s thyroiditis (HT), and 24 healthy subjects were studied. Thyroid tissue samples from 44 patients with AITD and 22 patients with goiter were also analyzed. Expression and function of Gal-1 and Gal-9 was assessed by quantitative RT-PCR, immunofluorescence and flow cytometry. Results A diminished expression of Gal-9, but not of Gal-1, by peripheral blood DCs was observed in GD patients, mainly in those with Graves´ ophthalmopathy, and a significant negative association between disease severity and Gal-9 expression was detected. In addition, the mRNA levels of Gal-9 and its ligand TIM-3 were increased in thyroid tissue from AITD patients and its expression was associated with the levels of Th1/Th12/Th17 cytokines. Immunofluorescence studies proved that intrathyroidal Gal-9 expression was confined to DCs and macrophages. Finally, in vitro functional assays showed that exogenous Gal-9 had a suppressive effect on the release of Th1/Th2/Th17 cytokines by DC/lymphocyte autologous co-cultures from both AITD patients and healthy controls. Conclusions The altered pattern of expression of Gal-9 in peripheral blood DCs from GD patients, its correlation with disease severity as well as its ability to suppress cytokine release suggest that Gal-9 could be involved in the pathogenesis of AITDThis work was supported by grants from the Fondo de Investigaciones Sanitarias (FISS) PI10/ 02521 and S2010/BMD-2328 TIRONET (Comunidad de Madrid), Spain (to MM) and the Fondo de Cooperación Internacional en Ciencia y Tecnología (FONCICYT) 95395, European Union-México (to RGA

    Morbid liver manifestations are intrinsically bound to metabolic syndrome and nutrient intake based on a machine-learning cluster analysis

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    Metabolic syndrome (MetS) is one of the most important medical problems around the world. Identification of patient ' s singular characteristic could help to reduce the clinical impact and facilitate individualized management. This study aimed to categorize MetS patients using phenotypical and clinical variables habitually collected during health check-ups of individuals considered to have high cardiovascular risk. The selected markers to categorize MetS participants included anthropometric variables as well as clinical data, biochemical parameters and prescribed pharmacological treatment. An exploratory factor analysis was carried out with a subsequent hierarchical cluster analysis using the z-scores from factor analysis. The first step identified three different factors. The first was determined by hypercholesterolemia and associated treatments, the second factor exhibited glycemic disorders and accompanying treatments and the third factor was characterized by hepatic enzymes. Subsequently four clusters of patients were identified, where cluster 1 was characterized by glucose disorders and treatments, cluster 2 presented mild MetS, cluster 3 presented exacerbated levels of hepatic enzymes and cluster 4 highlighted cholesterol and its associated treatments Interestingly, the liver status related cluster was characterized by higher protein consumption and cluster 4 with low polyunsaturated fatty acid intake. This research emphasized the potential clinical relevance of hepatic impairments in addition to MetS traditional characterization for precision and personalized management of MetS patients

    Long-term follow-up of certolizumab pegol in uveitis due to immune-mediated inflammatory diseases : multicentre study of 80 patients

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    Objectives To evaluate effectiveness and safety of certolizumab pegol (CZP) in uveitis due to immune-mediated inflammatory diseases (IMID). Methods Multicentre study of CZP-treated patients with IMID uveitis refractory to conventional immunosuppressant. Effectiveness was assessed through the following ocular parameters: best-corrected visual acuity, anterior chamber cells, vitritis, macular thickness and retinal vasculitis. These variables were compared between the baseline, and first week, first, third, sixth months, first and second year. Results We studied 80 (33 men/47 women) patients (111 affected eyes) with a mean age of 41.6±11.7 years. The IMID included were: spondyloarthritis (n=43), Behçet's disease (n=10), psoriatic arthritis (n=8), Crohn's disease (n=4), sarcoidosis (n=2), juvenile idiopathic arthritis (n=1), reactive arthritis (n=1), rheumatoid arthritis (n=1), relapsing polychondritis (n=1), Conclusions CZP seems to be effective and safe in uveitis related to different IMID, even in patients refractory to previous biological drugs

    Systematic Genomic and Clinical Analysis of Severe Acute Respiratory Syndrome Coronavirus 2 Reinfections and Recurrences Involving the Same Strain

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    10 páginas, 2 figuras, 3 tablasEstimates of the burden of severe acute respiratory syndrome coronavirus 2 reinfections are limited by the scarcity of population-level studies incorporating genomic support. We conducted a systematic study of reinfections in Madrid, Spain, supported by genomic viral analysis and host genetic analysis, to cleanse laboratory errors and to discriminate between reinfections and recurrences involving the same strain. Among the 41,195 cases diagnosed (March 2020-March 2021), 93 (0.23%) had 2 positive reverse transcription PCR tests (55-346 days apart). After eliminating cases with specimens not stored, of suboptimal sequence quality, or belonging to different persons, we obtained valid data from 22 cases. Of those, 4 (0.01%) cases were recurrences involving the same strain; case-patients were 39-93 years of age, and 3 were immunosuppressed. Eighteen (0.04%) cases were reinfections; patients were 19-84 years of age, and most had no relevant clinical history. The second episode was more severe in 8 cases.This work was supported by the Instituto de Salud Carlos III (Ref COV20/00140: SeqCOVID—Consorcio para la epidemiología genómica de SARS-CoV-2 en España) and by Consejo Superior de Investigaciones Científicas (CSIC) (PTI Salud Global). L.P.L. is the recipient of a Miguel Servet Research contract (CPII20/00001) from the Instituto de Salud Carlos III.Peer reviewe

    Lactobacillus Adhesion to Mucus

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    Mucus provides protective functions in the gastrointestinal tract and plays an important role in the adhesion of microorganisms to host surfaces. Mucin glycoproteins polymerize, forming a framework to which certain microbial populations can adhere, including probiotic Lactobacillus species. Numerous mechanisms for adhesion to mucus have been discovered in lactobacilli, including partially characterized mucus binding proteins. These mechanisms vary in importance with the in vitro models studied, which could significantly affect the perceived probiotic potential of the organisms. Understanding the nature of mucus-microbe interactions could be the key to elucidating the mechanisms of probiotic adhesion within the host
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