201 research outputs found

    Visita professional als serveis bibliotecaris d'universitats daneses: mobilitat erasmus+ acciĂł (KA103) 2019

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    Informe de l'estada professional als serveis bibliotecaris de la Technical University of Denmark, University of Copenhagen i Copenhagen Business School.Postprint (author's final draft

    Proposta metodològica per afavorir el treball en equip en assignatures semipresencials que comporten la realització de projectes d’enginyeria amb un alt contingut de disseny

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    Aquest projecte ha tingut com a finalitat principal impulsar un aprenentatge més efectiu dels alumnes en assignatures que, impartides en una modalitat semipresencial, comporten la realització d’un treball de curs amb un alt contingut de disseny. Paral·lelament es contribueix a millorar el rendiment acadèmic de l’ estudiant, en el marc de la millora global de la docència i de l’aprenentatge a la UPC amb un horitzó d’ aproximació als elements que conformen l’ Espai Europeu d’ Educació Superior. En el context de semipresencialitat, es pretén fomentar l’aprenentatge cooperatiu i donar solució als problemes comunicatius existents a nivell d’intercanvi d’opinions, valoracions i formulació de dubtes vinculats amb el disseny, etc. En aquest projecte, doncs, s’ha creat una metodologia de treball que permet intercanviar informació gràfica (per exemple en format Autocad) a partir de les aplicacions ja incloses en la plataforma virtual Atenea (campus virtual de la UPC). Aquest projecte es basa en tres objectius principals: 1. Millorar l'intercanvi d'informació entre alumnes d’un grup i entre els alumnes i el professor mitjançant el desenvolupament de protocols. 2. Fomentar l’aprenentatge cooperatiu mitjançant la integrar d’eines d’interacció instantània per internet. 3. Adaptar l’assignatura de “Complexos Industrials” al procés de convergència a l’EEES.Peer Reviewe

    Answers, adaptations and symmetry of the track to plant produced for the practice of the athletic march

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    El propósito de este trabajo fue determinar el efecto que tiene la práctica de la marcha atlética sobre las estructuras del pie, tanto en las respuestas inmediatas a la práctica como en las adaptaciones a largo plazo por el entrenamiento. Para ello se realizaron tres tomas de la huella plantar por el método el fotopodograma a una muestra de 17 marchadores jóvenes. La primera y segunda toma se realizaron en ambos pies a mediados de temporada, en reposo y tras 30 min de marcha respectivamente. La tercera toma también en reposo sobre el pie dominante 3 meses después, al final de la temporada. Los resultados indican que no hay diferencias entre el pie derecho e izquierdo, ni antes ni después del ejercicio. Sin embargo, al analizar el efecto en las respuestas se encontraron comportamientos distintos. Mientras que el pie derecho mostró incrementos significativos en el ancho del antepié y mediopié (P < 0,05), en el pie izquierdo se manifestó un incremento en la longitud del pie. Este comportamiento distinto puede deberse a las características del circuito sobre el que se realizó la marcha, circular con giro a la izquierda. Esto nos lleva a sugerir que para evitar posibles sobrecargas y descompensaciones los entrenamientos se desarrollen en circuitos equilibrados en curvas a ambos lados, o en caso de realizarse en circuito cerrado, que se cambie con frecuencia el sentido de giro. En cuanto a las adaptaciones, siguen un patrón similar al de las respuestas del pie derecho, se encontraron incrementos significativos en el ancho del antepié, aunque también se incrementó significativamente la longitud del pie, si bien creemos que esto último puede haberse debido al desarrollo propio de los atletas, ya que muchos se encontraban en edad de crecimiento.Actividad Física y DeportePodologíaTerapia y Rehabilitació

    Single nucleotide polymorphisms as prognostic and predictive biomarkers in renal cell carcinoma.

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    Despite major advances in the knowledge of the molecular basis of renal cell carcinoma, prognosis is still defined using clinical and pathological parameters. Moreover, no valid predictive biomarkers exist to help us selecting the best treatment for each patient. With these premises, we aimed to analyse the expression and to determine the prognostic and predictive value of 64 key single nucleotide polymorphisms in 18 genes related with angiogenesis or metabolism of antiangiogenics in two cohorts of patients with localized and advanced renal cell cancer treated at our institution. The presence of the selected single nucleotide polymorphisms was correlated with clinical features, disease free survival, overall survival and response rate. In patients with localized renal cell cancer, 5 of these polymorphisms in 3 genes involved in angiogenesis predicted for worse disease free survival (VEGFR2: rs10013228; PDGFRA: rs2228230) or shorter overall survival (VEGFR2: rs10013228; VEGFR3: rs6877011, rs307826) (p < 0.05). Rs2071559 in VEGFR2 showed a protective effect (p = 0.01). In the advanced setting, 5 SNPs determined inferior overall survival (IL8: rs2227543, PRKAR1B: rs9800958, PDGFRB: rs2302273; p = 0.05) or worse response rate (VEGFA: rs699947, rs3025010 p ≤ 0.01)). Additionally 1 single nucleotide polymorphism in VEGFB predicted for better response rate rs594942 (p = 0.03). Genetic analysis of renal cell carcinoma patients might provide valuable prognostic/predictive information. A set of SNPs in genes critical to angiogenesis and metabolism of antiangiogenics drugs seem to determine post-surgical outcomes and treatment response in our series.Junta de Andalucía PI-0427-201

    La formació en l'ús i accés a la informació a les biblioteques de la UPC

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    Peer Reviewe

    A new ETV6-RUNX1 in vivo model produces a phenocopy of the human Pb-ALL

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    Resumen del trabajo presentado al 57th American Society of Hematology (ASH) Annual Meeting and Exposition, celebrado en Orlando (Florida-US) del 5 al 8 de diciembre de 2015.-- et al.[Introduction]: The ETV6-RUNX1 fusion gene, the most common subtype of childhood pB-ALL, is acquired in utero, producing a persistent and hidden preleukemic clone. However, the underlying mechanism explaining how the preleukemic clone evolves to pB-ALL remains to be identified. The lack of genetically engineered human-like ETV6-RUNX1pB-ALL models has hampered our understanding of the pathogenesis of this disease. [Methods]: We have used a novel experimental approach to generate a murine strain that mimics the human ETV6-RUNX1 pB-ALL. We expressed ETV6-RUNX1 specifically in hematopoietic stem cells (HSC) of C57BL/6 x CBA mice by placing ETV6-RUNX1 under the control of the Sca1 promoter. Two founder mice were obtained for the Sca1-ETV6-RUNX1 transgene, which had normal gestation, were viable and developed normally. Sca1-ETV6-RUNX1 transgenic mice were characterized with respect to clinical, immunephenotypic and genetic characteristics. For the detection of shared secondary genomic alterations we analyzed three murine Sca1-ETV6-RUNX1 and 11 ETV6-RUNX1positive human pB-ALL and corresponding germline by whole-exome (WES) and whole-genome sequencing using a HiSeq 2500 (Illumina) platform.[Results]: In our transgenic murine model Sca1-ETV6-RUNX1 transgene expression was detected in HSCs, while there was no detectable expression in pro B cells or later stages of B-cell development, which mimics human ETV6-RUNX1 preleukemic biology. Sca1-ETV6-RUNX1 mice developed exclusively pB-ALL at a low penetrance (7.5%; 3 out of 40) with a CD19+B220+IgM- cell surface phenotype. Overall survival was not significantly reduced compared to wild-type mice (P value = 0.7901). pB-ALL in Sca1-ETV6-RUNX1 mice manifested with splenomegaly, disruption of splenic architecture, and appearance of blast cells in the peripheral blood (PB). All leukemic cells displayed clonal immature BCR rearrangement. Tumor pro B cells grew independent of IL-7 and were able to propagate the disease when transplanted into sub-lethally irradiated syngeneic recipient mice. Whole-exome sequencing of murine pB-ALL revealed in one mouse a deletion of three amino acids in the B-cell differentiation factor EBF1, which is well known in the context of human ETV6-RUNX1 leukemia. Additionally we found mutations in genes implicated in histone modification, i.e. in KDM5Ccausing a premature translation stop. We compared the genomic alterations detected in the mouse model to published genomic data of pediatric ETV6-RUNX1 pB-ALL and identified multiple copy number variations, which are shared between the murine and human ETV6-RUNX1 pB-ALL. Among them were copy number gains and losses including i.e. the tumorsuppressor locus CDKN2A/B with a well-known role in human and mouse pB-ALL. A high proportion of genes implicated in histone modification was also mutated in published data of human ETV6-RUNX1 positive pB-ALL. We validated this novel finding of recurrent alterations of histone modifying genes in both the murine model and the human disease using an independent human ETV6-RUNX1 cohort of 11 patients. In this cohort were able to reproduce this finding. Similar to the murine model, we also detected a missense mutation in the methyltransferase KDM5C in one patient of our cohort of ETV6-RUNX1positive patients.[Conclusion]: In summary, we have characterized a new Sca1-ETV6-RUNX1 mouse model and this is, to our knowledge the first model, which represents a phenocopy of the human pB-ALL. Sca1-ETV6-RUNX1 mice develop exclusively pB-ALL at a very low penetrance as it is the case in human ETV6-RUNX1 positive pB-ALL. The acquisition of secondary mutations in pB-ALL with a high proportion in histone modifying genes confers the second hit for the conversion of a preleukemic clone into the clinically overt ETV6-RUNX1 positive pB-ALL disease. These findings are important for encouraging novel interventions that might help to prevent or treat ETV6-RUNX1 positive childhood leukemias.Peer Reviewe

    Circulating progenitor cells and vascular dysfunction in chronic obstructive pulmonary disease.

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    BACKGROUND: In chronic obstructive pulmonary disease (COPD), decreased progenitor cells and impairment of systemic vascular function have been suggested to confer higher cardiovascular risk. The origin of these changes and their relationship with alterations in the pulmonary circulation are unknown. OBJECTIVES: To investigate whether changes in the number of circulating hematopoietic progenitor cells are associated with pulmonary hypertension or changes in endothelial function. METHODS: 62 COPD patients and 35 controls (18 non-smokers and 17 smokers) without cardiovascular risk factors other than cigarette smoking were studied. The number of circulating progenitors was measured as CD45(+)CD34(+)CD133(+) labeled cells by flow cytometry. Endothelial function was assessed by flow-mediated dilation. Markers of inflammation and angiogenesis were also measured in all subjects. RESULTS: Compared with controls, the number of circulating progenitor cells was reduced in COPD patients. Progenitor cells did not differ between control smokers and non-smokers. COPD patients with pulmonary hypertension showed greater number of progenitor cells than those without pulmonary hypertension. Systemic endothelial function was worse in both control smokers and COPD patients. Interleukin-6, fibrinogen, high sensitivity C-reactive protein, vascular endothelial growth factor and tumor necrosis factor were increased in COPD. In COPD patients, the number of circulating progenitor cells was inversely related to the flow-mediated dilation of systemic arteries. CONCLUSIONS: Pulmonary and systemic vascular impairment in COPD is associated with cigarette smoking but not with the reduced number of circulating hematopoietic progenitors. The latter appears to be a consequence of the disease itself not related to smoking habit

    Protocol for regional implementation of collaborative self-management services to promote physical activity

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    Background: Chronic diseases are generating a major health and societal burden worldwide. Healthy lifestyles, including physical activity (PA), have proven efficacy in the prevention and treatment of many chronic conditions. But, so far, national PA surveillance systems, as well as strategies for promotion of PA, have shown low impact. We hypothesize that personalized modular PA services, aligned with healthcare, addressing the needs of a broad spectrum of individual profiles may show cost-effectiveness and sustainability. Methods: The current manuscript describes the protocol for regional implementation of collaborative self-management services to promote PA in Catalonia (7.5 M habitants) during the period 2017-2019. The protocols of three implementation studies encompassing a broad spectrum of individual needs are reported. They have a quasi-experimental design. That is, a non-randomized intervention group is compared to a control group (usual care) using propensity score methods wherein age, gender and population-based health risk assessment are main matching variables. The principal innovations of the PA program are: i) Implementation of well-structured modular interventions promoting PA; ii) Information and communication technologies (ICT) to facilitate patient accessibility, support collaborative management of individual care plans and reduce costs; and iii) Assessment strategies based on the Triple Aim approach during and beyond the program deployment. Discussion: The manuscript reports a precise roadmap for large scale deployment of community-based ICT-supported integrated care services to promote healthy lifestyles with high potential for comparability and transferability to other sites. Trial registration: This study protocol has been registered at ClinicalTrials.org ( NCT02976064 ). Registered November 24th, 2016
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