Diseño de una antena textil de baja radiación trasera

Este proyecto surge de las necesidades que afloran día a día en una sociedad cada vez más dependiente de las nuevas tecnologías y sus aplicaciones. No es novedad mencionar que existe una tendencia clara hacia las redes de área personal, redes desplegadas en las proximidades del propio cuerpo humano. Estas redes, al igual que las de extensiones más amplias, necesitan de sus sistemas de recepción y transmisión, que a su vez, constan de antenas. Idealmente, interesaría poder embeber estas antenas en las prendas de vestir, por lo que, durante los últimos años, se ha estudiado como emplear materiales textiles para el diseño de las propias antenas. No sorprenden ya las cazadoras con auriculares incluidos y botones para poder manejar el mp3, ni zapatillas que hacen vibrar la izquierda o la derecha para indicar una dirección a modo de navegador, por lo tanto, resulta coherente e intuitivo que el siguiente paso sea la inclusión de antenas, y sus consecuentes sistemas de recepción, en las prendas de vestir. Un requisito importante de estas antenas textiles brota de su propia naturaleza, ya que si su finalidad es ir adheridas o embebidas en las prendas de vestir, la radiación trasera de la antena será desperdiciada con lo que se debe buscar un nivel alto de radiación delantera para obtener una antena los más eficiente posible. Por lo tanto, en este trabajo se busca diseñar una antena de parche con materiales textiles de uso más o menos cotidiano y que además goce de una baja radiación trasera. Para este segundo objetivo se utilizará una superficie periódica, una superficie soft en tecnología microstrip, que ya ha sido utilizada con finalidades similares (es decir, eliminar ondas de superficie para reducir el nivel de radiación trasera), pero con la diferencia de que en este caso dicha superficie debe ser flexible. Dicho diseño se ha realizado para la banda IBM de 2.4GHz-2.5GHz de uso abierto para aplicaciones militares, médicas y de servicios. Entre las aplicaciones más populares de dicha banda se encuentran las comunicaciones por WLAN y WPAN. Dicha banda es de uso libre y deben respetarse unos niveles máximos de potencia transmitida.Ingeniería de Telecomunicació

Case-Control Analysis of the Impact of Anemia on Quality of Life in Patients with Cancer: A Qca Study Analysis

The impact of anemia on the quality of life (QoL) in cancer patients has been studied previously; however, the cut-off point used to define anemia differed among studies, thus providing inconsistent results. Therefore, we analysed the clinical impact of anemia on QoL using the same cut-off point for hemoglobin level to define anemia as that used in ESMO clinical practice guidelines. This post-hoc analysis aimed to determine the impact of anemia on QoL in cancer patients through the European Organization for Research and Treatment of Cancer Quality of life questionnaire version 3.0 (EORTC QLQ-C30) and Euro QoL 5-dimension 3-level (EQ-5D-3L) questionnaire. We found that cancer patients with anemia had significantly worse QoL in clinical terms. In addition, anemic patients had more pronounced symptoms than those in non-anemic patients. Anemia is a common condition in cancer patients and is associated with a wide variety of symptoms that impair quality of life (QoL). However, exactly how anemia affects QoL in cancer patients is unclear because of the inconsistencies in its definition in previous reports. We aimed to examine the clinical impact of anemia on the QoL of cancer patients using specific questionnaires. We performed a post-hoc analysis of a multicenter, prospective, case-control study. We included patients with cancer with (cases) or without (controls) anemia. Participants completed the European Organization for Research and Treatment of Cancer Quality of Life questionnaire version 3.0 (EORTC QLQ-C30) and Euro QoL 5-dimension 3-level (EQ-5D-3L) questionnaire. Statistically significant and clinically relevant differences in the global health status were examined. From 2015 to 2018, 365 patients were included (90 cases and 275 controls). We found minimally important differences in global health status according to the EORTC QLQ-C30 questionnaire (case vs. controls: 45.6 vs. 58%, respectively; mean difference: -12.4, p < 0.001). Regarding symptoms, cancer patients with anemia had more pronounced symptoms in six out of nine scales in comparison with those without anemia. In conclusion, cancer patients with anemia had a worse QoL both clinically and statistically

A Study of Learning-by-Doing in MOOCs through the Integration of Third-Party External Tools:Comparison of Synchronous and Asynchronous Running Modes

Many MOOCs are being designed replicating traditional passive teaching approaches but using video lectures as the means of transmitting information. However, it is well known that learning-by-doing increases retention rates and, thus, allows achieving a more effective learning. To this end, it is worth exploring which tools fit best in the context of each MOOC to enrich learners' experience, including built-in tools already available in the MOOC platform, and third-party external tools which can be integrated in the MOOC platform. This paper presents an example of the integration of a software development tool, called Codeboard, in three MOOCs which serve as an introduction to programming with Java. We analyze the effect this tool has on learners' interaction and engagement when running the MOOCs in synchronous (instructor-paced) or asynchronous (self-paced) modes. Results show that the overall use of the tool is similar, regardless of the course running mode, although in the case of the synchronous mode the use of the tool is concentrated in a shorter period of time. Results also show that in the synchronous mode there is a higher percentage of accesses to the tool from registered learners (who can save their advances and continue the work later); this finding suggests that learners in the synchronous running mode are more engaged with the MOOC.The authors acknowledge the eMadrid Network, which is funded by the Madrid Regional Government (Comunidad de Madrid) with grant No. S2013/ICE-2715. This work also received partial support from the Spanish Ministry of Economy, Industry and Competitiveness, Project RESET (TIN2014-53199-C3-1-R), Project SYMBHYO-TIC (PTQ-15-07505), Project SIMLAP (RTC-2014-2811-1), Project SMARTLET (TIN2017-85179-C3-1-R), and from the European Commission through Erasmus+ projects MOOC-Maker (561533-EPP-1-2015-1-ESEPPKA2-CBHE-JP), SHEILA (562080-EPP-1-2015-1-BEEPPKA3-PI-FORWARD), COMPASS (2015-1-EL01-KA203-014033), and COMPETEN-SEA (574212-EPP-1-2016-1-NLEPPKA2-CBHE-JP)

Estudos Artísticos

Implicação e viragem. O paradigma é cada vez mais relacional ao mesmo tempo que a criação de públicos entra dentro da esfera de ação do autor. É um dos aspectos multiformes do “educational turn” nas artes: o discurso artístico, curatorial, mediático e de gestão institucional orienta-se para uma maior interação relacional, através da convocação de novos públicos, mais visitantes, mais interação pelas redes e dispositivos móveis, mais implicação informal através de novos espaços e de novos circuitos de circulação, mais implicação formativa dos artistas na produção de discursos sobre a arte, mais ênfase na formação artística através da formação pós graduada de artistas, com novas soluções de inserção académica, como a pesquisa baseada na prática, entre muitas outras instâncias. Aqui, nesta revista, centramos aquelas instâncias de implicação, comprometimento, intervenção.info:eu-repo/semantics/publishedVersio

Bronchoscopist's perception of the quality of the single-use bronchoscope (Ambu aScope4™) in selected bronchoscopies: a multicenter study in 21 Spanish pulmonology services

Background: The disposable bronchoscope is an excellent alternative to face the problem of SARS-CoV-2 and other cross infections, but the bronchoscopist’s perception of its quality has not been evaluated. Methods: To evaluate the quality of the Ambu-aScope4 disposable bronchoscope, we carried out a cross-sectional study in 21 Spanish pulmonology services. We use a standardized questionnaire completed by the bronchoscopists at the end of each bronchoscopy. The variables were described with absolute and relative frequencies, measures of cen‑ tral tendency and dispersion depending on their nature. The existence of learning curves was evaluated by CUSUM analysis. Results: The most frequent indications in 300 included bronchoscopies was bronchial aspiration in 69.3% and the median duration of these was 9.1 min. The route of entry was nasal in 47.2% and oral in 34.1%. The average score for ease of use, image, and aspiration quality was 80/100. All the planned techniques were performed in 94.9% and the bronchoscopist was satisfed in 96.6% of the bronchoscopies. They highlighted the portability and immediacy of the aScope4TM to start the procedure in 99.3%, the possibility of taking and storing images in 99.3%. The CUSUM analysis showed average scores>70/100 from the frst procedure and from the 9th procedure more than 80% of the scores exceeded the 80/100 score

Bronchoscopist's perception of the quality of the single-use bronchoscope (Ambu aScope4™) in selected bronchoscopies : a multicenter study in 21 Spanish pulmonology services

Background: The disposable bronchoscope is an excellent alternative to face the problem of SARS-CoV-2 and other cross infections, but the bronchoscopist's perception of its quality has not been evaluated. Methods: To evaluate the quality of the Ambu-aScope4 disposable bronchoscope, we carried out a cross-sectional study in 21 Spanish pulmonology services. We use a standardized questionnaire completed by the bronchoscopists at the end of each bronchoscopy. The variables were described with absolute and relative frequencies, measures of central tendency and dispersion depending on their nature. The existence of learning curves was evaluated by CUSUM analysis. Results: The most frequent indications in 300 included bronchoscopies was bronchial aspiration in 69.3% and the median duration of these was 9.1 min. The route of entry was nasal in 47.2% and oral in 34.1%. The average score for ease of use, image, and aspiration quality was 80/100. All the planned techniques were performed in 94.9% and the bronchoscopist was satisfied in 96.6% of the bronchoscopies. They highlighted the portability and immediacy of the aScope4TM to start the procedure in 99.3%, the possibility of taking and storing images in 99.3%. The CUSUM analysis showed average scores > 70/100 from the first procedure and from the 9th procedure more than 80% of the scores exceeded the 80/100 score. Conclusions: The aScope4™ scored well for ease of use, imaging, and aspiration. We found a learning curve with excellent scores from the 9th procedure. Bronchoscopists highlighted its portability, immediacy of use and the possibility of taking and storing images

Higher COVID-19 pneumonia risk associated with anti-IFN-α than with anti-IFN-ω auto-Abs in children

We found that 19 (10.4%) of 183 unvaccinated children hospitalized for COVID-19 pneumonia had autoantibodies (auto-Abs) neutralizing type I IFNs (IFN-alpha 2 in 10 patients: IFN-alpha 2 only in three, IFN-alpha 2 plus IFN-omega in five, and IFN-alpha 2, IFN-omega plus IFN-beta in two; IFN-omega only in nine patients). Seven children (3.8%) had Abs neutralizing at least 10 ng/ml of one IFN, whereas the other 12 (6.6%) had Abs neutralizing only 100 pg/ml. The auto-Abs neutralized both unglycosylated and glycosylated IFNs. We also detected auto-Abs neutralizing 100 pg/ml IFN-alpha 2 in 4 of 2,267 uninfected children (0.2%) and auto-Abs neutralizing IFN-omega in 45 children (2%). The odds ratios (ORs) for life-threatening COVID-19 pneumonia were, therefore, higher for auto-Abs neutralizing IFN-alpha 2 only (OR [95% CI] = 67.6 [5.7-9,196.6]) than for auto-Abs neutralizing IFN-. only (OR [95% CI] = 2.6 [1.2-5.3]). ORs were also higher for auto-Abs neutralizing high concentrations (OR [95% CI] = 12.9 [4.6-35.9]) than for those neutralizing low concentrations (OR [95% CI] = 5.5 [3.1-9.6]) of IFN-omega and/or IFN-alpha 2

Spread of a SARS-CoV-2 variant through Europe in the summer of 2020

[EN] Following its emergence in late 2019, the spread of SARS-CoV-21,2 has been tracked by phylogenetic analysis of viral genome sequences in unprecedented detail3,4,5. Although the virus spread globally in early 2020 before borders closed, intercontinental travel has since been greatly reduced. However, travel within Europe resumed in the summer of 2020. Here we report on a SARS-CoV-2 variant, 20E (EU1), that was identified in Spain in early summer 2020 and subsequently spread across Europe. We find no evidence that this variant has increased transmissibility, but instead demonstrate how rising incidence in Spain, resumption of travel, and lack of effective screening and containment may explain the variant’s success. Despite travel restrictions, we estimate that 20E (EU1) was introduced hundreds of times to European countries by summertime travellers, which is likely to have undermined local efforts to minimize infection with SARS-CoV-2. Our results illustrate how a variant can rapidly become dominant even in the absence of a substantial transmission advantage in favourable epidemiological settings. Genomic surveillance is critical for understanding how travel can affect transmission of SARS-CoV-2, and thus for informing future containment strategies as travel resumes.S

Analyzing learners' engagement and behavior in MOOCs on programming with the Codeboard IDE

Massive Open Online Courses (MOOCs) can be enhanced with the so-called learning-by-doing, designing the courses in a way that the learners are involved in a more active way in the learning process. Within the options for increasing learners&#39; interaction in MOOCs, it is possible to integrate (third-party) external tools as part of the instructional design of the courses. In MOOCs on computer sciences, there are, for example, web-based Integrated Development Environments (IDEs) which can be integrated and that allow learners to do programming tasks directly in their browsers without installing desktop software. This work focuses on analyzing the effect on learners&#39; engagement and behavior of integrating a third-party web-based IDE, Codeboard, in three MOOCs on Java programming with the purpose of promoting learning-by-doing (learning by coding in this case). In order to measure learners&#39; level of engagement and behavior, data was collected from Codeboard on the number of compilations, executions and code generated, and compared between learners who registered in Codeboard to save and keep a record of their projects (registered learners) and learners who did not register in Codeboard and did not have access to these extra features (anonymous learners). The results show that learners who registered in Codeboard were more engaged than learners who did not register (in terms of number of compilations and executions), spent more time coding and did more changes in the base code provided by the teachers. The main implication of this study suggests the need for a trade-off between designing MOOCs that allow a very easy and anonymous access to external tools aimed for a more active learning, and forcing learners to give a step forward in terms of commitment in exchange for benefitting from additional features of the external tool used.The work received partial support from FEDER/Ministerio de Ciencia, Innovación y Universidades –Agencia Estatal de Investigación through project Smartlet (TIN2017-85179-C3-1-R), from the eMadrid Network, which is funded by the Madrid Regional Government (Comunidad de Madrid) with grant No. P2018/TCS-4307and from the European Commission through Erasmus+ projects LALA (586120-EPP-1-2017-1-ES-EPPKA2-CBHE-JP), InnovaT (598758-EPP-1-2018-1-AT-EPPKA2-CBHE-JP) and PROF-XXI (609767-EPP-1-2019-1-ES-EPPKA2-CBHE-JP