79 research outputs found

    Propuesta para un uso responsable de las TIC

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    En el presente trabajo se lleva a cabo una propuesta para un uso responsable de las TIC, aplicada a niños de Educación Primaria. La primera parte consiste en una revisión de las teorías más relevantes. En los primeros apartados, se estudian las principales características que tienen las TIC con respecto a los niños, y la justificación del mal uso de las TIC ya que si no se usan de forma responsable, pueden ocasionar problemas en la vida de los niños. Además, también expongo las razones que me han llevado a elegir este tema para mi Trabajo de Fin de Grado. Después de estos aspectos, se abordan los principales riesgos que tienen las TIC en niños tales como las e-adicciones, y el ciberbullying y grooming. Este apartado es uno de los más densos del trabajo puesto que considero que es muy importante conocer los riesgos más comunes de las nuevas tecnologías. A continuación, me centro en los valores de comportamiento de las TIC y se enumeran las líneas de actuación que se están llevando a cabo actualmente para proteger a los niños. En la segunda parte, realizo un trabajo de campo. En este apartado, he utilizado una metodología exploratoria basada en la utilización de cuestionarios, los cuales he repartido en dos aulas para comprobar si todo lo leído tiene relación con la realidad. Después de realizar gráficos con los resultados extraídos de los cuestionarios, analizo los datos e interpreto las conclusiones que podemos obtener a través del uso de la herramienta del cuestionario. Por último, he realizado una propuesta didáctica a través de un taller. Esta propuesta debe ser realizada para concienciar a los alumnos de que tienen que usar las TIC de forma responsable. A través de este taller, los alumnos conocerán más acerca del tema del ciberbullying y qué puede ocasionar. Para ello, he preparado distintas actividades, las cuales se llevarían a cabo en dos sesiones de clase. Éstas podrían ayudar a los alumnos a enfrentar los problemas más comunes detectados a través del cuestionario, puesto que las actividades están centradas en las debilidades que presentan los alumnos respecto al tema tratado

    Nanometric constrictions in superconducting coplanar waveguide resonators

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    We report on the design, fabrication and characterization of superconducting coplanar waveguide resonators with nanoscopic constrictions. By reducing the size of the center line down to 50 nm, the radio frequency currents are concentrated and the magnetic field in its vicinity is increased. The device characteristics are only slightly modified by the constrictions, with changes in resonance frequency lower than 1% and internal quality factors of the same order of magnitude as the original ones. These devices could enable the achievement of higher couplings to small magnetic samples or even to single molecular spins and have applications in circuit quantum electrodynamics, quantum computing and electron paramagnetic resonance.Comment: 4 pages, 4 figure

    Comparative study between Ultrasonography and Optical Coherence Tomography in interventional cardiology

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    In this work, we present clinical images of IVUS and OCT in the evaluation of pharmacological stent endothelization. These preliminary imaging results are analyzed and compared in order to determine the ability of these technologies to visualize relevant intravascular features of interest in interventional cardiology. The results enable to compare the performance of both techniques and to evaluate their potential for clinical purposes

    Nanoscale constrictions in superconducting coplanar waveguide resonators

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    We report on the design, fabrication, and characterization of superconducting coplanar waveguide resonators with nanoscopic constrictions. By reducing the size of the center line down to 50 nm, the radio frequency currents are concentrated and the magnetic field in its vicinity is increased. The device characteristics are only slightly modified by the constrictions, with changes in resonance frequency lower than 1% and internal quality factors of the same order of magnitude as the original ones. These devices could enable the achievement of higher couplings to small magnetic samples or even to single molecular spins and have applications in circuit quantum electrodynamics, quantum computing, and electron paramagnetic resonance

    A randomized comparison ofrepeat stenting with balloon angioplasty in patients with in-stent restenosis

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    AbstractObjectivesThis randomized trial compared repeat stenting with balloon angioplasty (BA) in patients with in-stent restenosis (ISR).BackgroundStent restenosis constitutes a therapeutic challenge. Repeat coronary interventions are currently used in this setting, but the recurrence risk remains high.MethodsWe randomly assigned 450 patients with ISR to elective stent implantation (224 patients) or conventional BA (226 patients). Primary end point was recurrent restenosis rate at six months. Secondary end points included minimal lumen diameter (MLD), prespecified subgroup analyses, and a composite of major adverse events.ResultsProcedural success was similar in both groups, but in-hospital complications were more frequent in the balloon group. After the procedure MLD was larger in the stent group (2.77 ± 0.4 vs. 2.25 ± 0.5 mm, p < 0.001). At follow-up, MLD was larger after stenting when the in-lesion site was considered (1.69 ± 0.8 vs. 1.54 ± 0.7 mm, p = 0.046). However, the binary restenosis rate (38% stent group, 39% balloon group) was similar with the two strategies. One-year event-free survival (follow-up 100%) was also similar in both groups (77% stent vs. 71% balloon, p = 0.19). Nevertheless, in the prespecified subgroup of patients with large vessels (≥3 mm) the restenosis rate (27% vs. 49%, p = 0.007) and the event-free survival (84% vs. 62%, p = 0.002) were better after repeat stenting.ConclusionsIn patients with ISR, repeat coronary stenting provided better initial angiographic results but failed to improve restenosis rate and clinical outcome when compared with BA. However, in patients with large vessels coronary stenting improved the long-term clinical and angiographic outcome

    Impact of triple therapy in elderly patients with atrial fibrillation undergoing percutaneous coronary intervention

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    Background and Purpose: Selecting an ideal antithrombotic therapy for elderly patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI) can be challenging since they have a higher thromboembolic and bleeding risk than younger patients. The current study aimed to assess the efficacy and safety of triple therapy (TT: oral anticoagulation plus dual antiplate- let therapy: aspirin plus clopidogrel) in patients > 75 years of age with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). Methods: A prospective multicenter study was conducted from 2003 to 2012 at 6 Spanish teaching hospitals. A cohort study of consecutive patients with AF undergoing PCI and treated with TT or dual antiplatelet therapy (DAPT) was analyzed. All outcomes were evaluated at 1- year of follow-up. Results: Five hundred and eighty-five patients, 289 (49%) of whom were > 75 years of age (79.6 ± 3.4 years; 33% women) were identified. TT was prescribed in 55.9% of patients at discharge who had a higher thromboembolic risk (CHA 2 DS 2 VASc score: 4.23 ± 1.51 vs 3.76 ± 1.40, p = 0.007 and a higher bleeding risk (HAS-BLED > 3: 88.6% vs 79.2%, p = 0.02) than those on DAPT. Therefore, patients on TT had a lower rate of thromboembolism than those on DAPT (0.6% vs 6.9%, p = 0.004; HR 0.08, 95% CI: 0.01 - 0.70, p = 0.004). Major bleeding events occurred more frequently in patients on TT than in those on DAPT (11.7% vs 2.4%, p = 0.002; HR 5.2, 95% CI: 1.53 - 17.57, p = 0.008). The overall mortality rate was similar in both treatment groups (11.9% vs 13.9%, p = 0.38); however, after adjustment for confounding variables, TT was associated with a reduced mortality rate (HR 0.33, 95% CI: 0.12 - 0.86, p = 0.02). Conclusions In elderly patients with AF undergoing PCI, the use of TT compared to DAPT was associ- ated with reduced thromboembolism and mortality rates, although a higher rate of major bleeding

    Adaptación al Espacio Europeo de Educación Superior (EEES). El problema de las clases numerosas

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    [SPA]Con el objetivo de conseguir una adaptación al EEES, la Universidad Politécnica de Cartagena viene desarrollando desde el curso pasado una iniciativa de innovación docente consistente en la creación de grupos docentes que analizan diversos aspectos de esta adaptación con el objetivo de generar documentos de apoyo para el resto de la comunidad universitaria en este proceso de convergencia. En esta comunicación se presenta el trabajo realizado por el grupo docente “planificación de la docencia en grupos numerosos“ desde su creación, así como una introducción al trabajo que se está desarrollando este curso académico. [ENG]In order to achieve an adaptation to the EEES, Universidad Politécnica de Cartagena is developping since the last academic course an innovative education initiative, involving the creation of teaching groups that discusses various aspects of this adaptation in order to produce documents in support of the rest of the university community in this process of convergence. This communication shows the work done by the group called “teaching planning in large classes" since its creation, and an introduction to the work that is taking place this academic year.Campus Mare Nostrum, Universidad Politécnica de Cartagena, Universidad de Murcia, Región de Murci

    A Randomized Comparison of Drug-Eluting Balloon Versus Everolimus-Eluting Stent in Patients With Bare-Metal Stent–In-Stent Restenosis The RIBS V Clinical Trial (Restenosis Intra-stent of Bare Metal Stents: Paclitaxel-eluting Balloon vs. Everolimus-eluting Stent)

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    ObjectivesThis study sought to compare the efficacy of drug-eluting balloons (DEB) with that of everolimus-eluting stents (EES) in patients with bare-metal stents (BMS) in-stent restenosis (ISR).BackgroundTreatment of patients with ISR remains a challenge.MethodsThis was a prospective, multicenter, randomized trial comparing DEB with EES in patients with bare-metal stents (BMS) in-stent restenosis (ISR). The primary endpoint was the minimal lumen diameter at 9 months' follow-up.ResultsA total of 189 patients with BMS-ISR from 25 Spanish sites were included (95 were allocated to DEB and 94 to EES). Procedural success was achieved in all patients. At late angiography (median 249 days; 92% of eligible patients), patients in the EES arm had a significantly larger minimal lumen diameter (2.36 ± 0.6 mm vs. 2.01 ± 0.6 mm, p < 0.001; absolute mean difference: 0.35 mm; 95% confidence interval [CI]: 0.16 to 0.53) and a lower percent of diameter stenosis (13 ± 17% vs. 25 ± 20%, p < 0.001). However, late loss (0.04 ± 0.5 mm vs. 0.14 ± 0.5 mm, p = 0.14) and binary restenosis rate (4.7% vs. 9.5%, p = 0.22) were very low and similar in both groups. Clinical follow-up (median 365 days) was obtained in all (100%) patients. Occurrences of the combined clinical outcome measure (cardiac death, myocardial infarction, and target vessel revascularization; 6% vs. 8%; hazard ratio [HR]: 0.76; 95% CI: 0.26 to 2.18, p = 0.6) and the need for target vessel revascularization (2% vs. 6%; HR: 0.32: 95% CI: 0.07 to 1.59, p = 0.17) were similar in the 2 groups.ConclusionsIn patients with BMS-ISR, both DEB and EES provided excellent clinical results with a very low rate of clinical and angiographic recurrences. However, compared with DEB, EES provide superior late angiographic findings. (Restenosis Intra-stent of Bare Metal Stents: Paclitaxel-eluting Balloon vs. Everolimus-eluting Stent [RIBS V]; NCT01239953

    White Paper on Digital and Complex Information

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    Information is one of the main traits of the contemporary era. Indeed there aremany perspectives to define the present times, such as the Digital Age, the Big Dataera, the Fourth Industrial Revolution, the fourth Paradigm of science, and in all ofthem information, gathered, stored, processed and transmitted, plays a key role.Technological developments in the last decades such as powerful computers, cheaperand miniaturized solutions as smartphones, massive optical communication, or theInternet, to name few, have enabled this shift to the Information age. This shift hasdriven daily life, cultural and social deep changes, in work and personal activities,on access to knowledge, information spreading, altering interpersonal relations orthe way we interact in public and private sphere, in economy and politics, pavingthe way to globalizationPeer reviewe
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