239 research outputs found

    Sistema Valladolid de construcción con palets

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    Producción CientíficaSistema de construccion con palets, de mínimo coste, para utilización en construcción tradicional sostenible y en situaciones post desastre para refugios de emergenciaConstrucciones Arquitectónica

    Simultaneous Estimation of Vehicle Sideslip and Roll Angles Using an Event-Triggered-Based IoT Architecture

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    In recent years, there has been a significant integration of advanced technology into the automotive industry, aimed primarily at enhancing safety and ride comfort. While a notable proportion of these driver-assist systems focuses on skid prevention, insufficient attention has been paid to addressing other crucial scenarios, such as rollovers. The accurate estimation of slip and roll angles plays a vital role in ensuring vehicle control and safety, making these parameters essential, especially with the rise of modern technologies that incorporate networked communication and distributed computing. Furthermore, there exists a lag in the transmission of information between the various vehicle systems, including sensors, actuators, and controllers. This paper outlines the design of an IoT architecture that accurately estimates the sideslip angle and roll angle of a vehicle, while addressing network transmission delays with a networked control system and an event-triggered communication scheme. Experimental results are presented to validate the performance of the IoT architecture proposed. The event-triggered scheme of the IoT solution is used to decrease data transmission and prevent network overload.Funding. Grant [ PID2022-136468OB-I00 ] funded by MCIN/AEI/ 10.13039/501100011033 and by “ERDF A way of making Europe”

    Knowledge and Practice of Health Professionals in the Management of Dysphagia

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    Background: Dysphagia is associated with poor outcome in stroke patients. Studies investigating the association of dysphagia and early dysphagia screening (EDS) with outcomes in patients with acute ischemic stroke (AIS) are rare. The aims of our study are to investigate the association of dysphagia and EDS within 24 h with stroke-related pneumonia and outcomes. Methods: Over a 4.5-year period (starting November 2007), all consecutive AIS patients from 15 hospitals in Schleswig-Holstein, Germany, were prospectively evaluated. The primary outcomes were stroke-related pneumonia during hospitalization, mortality, and disability measured on the modified Rankin Scale >= 2-5, in which 2 indicates an independence/slight disability to 5 severe disability. Results: Of 12,276 patients (mean age 73 +/- 13; 49% women), 9,164 patients (74%) underwent dysphagia screening; of these patients, 55, 39, 4.7, and 1.5% of patients had been screened for dysphagia within 3, 3 to 72 h following admission. Patients who underwent dysphagia screening were likely to be older, more affected on the National Institutes of Health Stroke Scale score, and to have higher rates of neurological symptoms and risk factors than patients who were not screened. A total of 3,083 patients (25.1%; 95% CI 24.4-25.8) had dysphagia. The frequency of dysphagia was higher in patients who had undergone dysphagia screening than in those who had not (30 vs. 11.1%; p < 0.001). During hospitalization (mean 9 days), 1,271 patients (10.2%; 95% CI 9.7-10.8) suffered from stroke-related pneumonia. Patients with dysphagia had a higher rate of pneumonia than those without dysphagia (29.7 vs. 3.7%; p < 0.001). Logistic regression revealed that dysphagia was associated with increased risk of stroke-related pneumonia (OR 3.4; 95% CI 2.8-4.2; p < 0.001), case fatality during hospitalization (OR 2.8; 95% CI 2.1-3.7; p < 0.001) and disability at discharge (OR 2.0; 95% CI 1.6-2.3; p < 0.001). EDS within 24 h of admission appeared to be associated with decreased risk of stroke-related pneumonia (OR 0.68; 95% CI 0.52-0.89; p = 0.006) and disability at discharge (OR 0.60; 95% CI 0.46-0.77; p < 0.001). Furthermore, dysphagia was independently correlated with an increase in mortality (OR 3.2; 95% CI 2.4-4.2; p < 0.001) and disability (OR 2.3; 95% CI 1.8-3.0; p < 0.001) at 3 months after stroke. The rate of 3-month disability was lower in patients who had received EDS (52 vs. 40.7%; p = 0.003), albeit an association in the logistic regression was not found (OR 0.78; 95% CI 0.51-1.2; p = 0.2). Conclusions: Dysphagia exposes stroke patients to a higher risk of pneumonia, disability, and death, whereas an EDS seems to be associated with reduced risk of stroke-related pneumonia and disability. (C) 2016 S. Karger AG, Base

    High-CO2 Levels Rather than Acidification Restrict Emiliania huxleyi Growth and Performance

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    The coccolithophore Emiliania huxleyi shows a variety of responses to ocean acidification (OA) and to high-CO2 concentrations, but there is still controversy on differentiating between these two factors when using different strains and culture methods. A heavily calcified type A strain isolated from the Norwegian Sea was selected and batch cultured in order to understand whether acclimation to OA was mediated mainly by CO2 or H+, and how it impacted cell growth performance, calcification, and physiological stress management. Emiliania huxleyi responded differently to each acidification method. CO2-enriched aeration (1200 µatm, pH 7.62) induced a negative effect on the cells when compared to acidification caused by decreasing pH alone (pH 7.60). The growth rates of the coccolithophore were more negatively affected by high pCO2 than by low pH without CO2 enrichment with respect to the control (400 µatm, pH 8.1). High CO2 also affected cell viability and promoted the accumulation of reactive oxygen species (ROS), which was not observed under low pH. This suggests a possible metabolic imbalance induced by high CO2 alone. In contrast, the affinity for carbon uptake was negatively affected by both low pH and high CO2. Photochemistry was only marginally affected by either acidification method when analysed by PAM fluorometry. The POC and PIC cellular quotas and the PIC:POC ratio shifted along the different phases of the cultures; consequently, calcification did not follow the same pattern observed in cell stress and growth performance. Specifically, acidification by HCl addition caused a higher proportion of severely deformed coccoliths, than CO2 enrichment. These results highlight the capacity of CO2 rather than acidification itself to generate metabolic stress, not reducing calcification.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. Funding for open access charge: Universidad de Málaga / CBUA This work was funded by FC14-RNM-27 research grant (FITOVIA) from the University of Málaga, Spain (Plan Propio) to CJ. VV was funded by a EUROPE ERASMUS+grant to carry out research short-stay at Marine Scotland Marine Laboratory in Aberdeen, UK, and by a grant from the University of Málaga, Spain (Plan Propio)

    Indoor radon measurements in Ny-Ålesund, the northernmost civilian settlement in the world

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    Ny-Ålesund is situated at 78° 55´ N, 11° 56´ E on the west coast of Spitsbergen, the largest island in the Svalbard archipelago and is a centre for international Arctic scientific research and environmental monitoring. Since 1916 to 1963 was an old coal mining town. Exposure to indoor radon has been identified as the second leading cause of lung cancer after tobacco smoking. In an indoor environment, there are many factors affecting indoor radon concentrations. Those factors could be different in the Arctic regions. [1] It is well known that the Council Directive 2013/59 / Euratom of 5 December 2013, article 74, says that "Member States shall establish national reference levels for indoor radon concentrations. The reference levels for the annual average activity concentration in air shall not be higher than 300 Bq m -3" so it is important to know the radon concentration in different places. Indoor radon activity measurements were carried out in different locations at Ny-Ålesund: Koldewey base (German base), KingsBay dining room, Marine Laboratory, and Gym facilities with five AlphaE devices from Saphymo GmbH. The AlphaE is an ultra small continuous radon monitor for professional use, based on a silicon diffusion chamber.The calculation of dose is possible due to a user-settable equilibrium factor. Indoor radon measurements were carried out from 3 to 27 September 2014. The values show low average level of indoor radon in the different analyzed buildings, with a geometrical mean of 60 Bq/m3 with a maximun value of 145 Bq/m3 in the Koldewey building. So the radiation exposure levels for workers and scientific personnel represents only a low percentage of the exposure guides for the general population.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    The Influence of Patient Experience with Healthcare on the Health-Related Quality of Life of People Living with HIV: An Observational Cross-Sectional Survey

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    [Abstract] Introduction Patient experience is central to the quality of healthcare delivery, showing positive associations with several outcome measures. The main objectives of this study are to analyze the influence of patient experience on the health-related quality of life in people living with HIV and the role played by treatment complexity and clinical care. Methods We conducted a cross-sectional survey with 467 patients with HIV. We used the Instrument for Evaluation of the Experience of Chronic Patients and the Health-related Quality of Life Questionnaire (EQ-5D-5L). We analyzed a predictive model through the partial least squares (PLS) method. Results The patient self-management scores showed the highest positive relationship with the patient’s health-related quality of life (β = 0.24, β = 0.32, p  50 years old (p < 0.05). Conclusions Patient experience mainly influenced the health-related quality of life of older people living with HIV. The treatment and clinical care complexity played an important role in degrading the patients' experience and their quality of life. More integrated care would benefit the health-related quality of life of people living with HIV

    Economics of gastroenteropancreatic neuroendocrine tumors : a systematic review

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    Despite current interest, enthusiasm and progress in the development of therapies for gastroenteropancreatic (GEP) neuroendocrine tumors (NETs), there are substantial gaps in the published literature regarding cost-of-illness analyses, economic evaluation and budget impact analyses. Compounding the issue is that data on resource utilization and cost-effectiveness of different diagnostic and therapeutic modalities for GEP-NETs are scarce. A systematic review on the economic impact of GEP-NETs was carried out using four databases: EMBASE, PubMed, the National Health Service Economic Evaluation Database and Cochrane review. Fully published articles from January 2000 to May 2017, in English and Spanish, were included. All articles that satisfied the inclusion criteria were included in the systematic review; summary descriptive statistics were used to describe the methodological characteristics. The 14 studies selected included cost-of-illness analyses (n = 4), economic evaluations (n = 7) and budget impact analyses (n = 3). Almost all studies were performed in the United States. Healthcare costs for patients with NETs included medication, outpatient visits, hospitalizations, and check-ups/tests. Reducing adverse events is an area where cost savings could be achieved; however, there was not enough evidence on the cost impact of adverse events. There is a lack of data related to resource utilization in the field of GEP-NETs. Therefore, cost-effectiveness and budget impact studies of existing and emerging treatments are urgently needed to help the decision-making process for patients with NETs

    Enabling Intelligent Omni-Surfaces in the Polarization Domain: Principles, Implementation and Applications

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    Research in wireless communications based on reconfigurable intelligent surfaces (RIS) has surged in the communication-theoretic arena. Recently, the RIS concept has moved into the area of so-called simultaneously transmitting and reflecting intelligent omni-surfaces (STAR-IOS, or simply IOS), which extend the RIS functionality by incorporating transmission (in addition to reflection) capabilities. Development of STAR-IOS’ full and independent reconfiguration capabilities for both reflected and transmitted waves is crucial. However, such full independent reconfiguration has thus far been hampered by the intimate coupling between the transmission and reflection behavior of IOS elements. To overcome this challenge and realize the full potential of reconfigurable IOS-aided systems, in this article we advocate for the use of the polarization domain in the design and operation of STAR-IOS. Thanks to the polarization-dependent features of IOS elements, fully independent (reconfigurable) transmission and reflection modes can be delivered, thus bringing key performance improvements in, and opportunities for, new communication scenarios.This work was funded in part by Junta de Andalucía through grant EMERGIA20-00297; in part by the State Research Agency of Spain (AEI) and the European Social Fund under grant RYC2020-030536-I; in part by PID2020-112545RB-C54, PID2020-118139RB-I00, PDC2022-133900-I00, TED2021-129938B-I00, TED2021-131699B-I00 and IJC2020-043599-I funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. Funding for open access charge: Universidad de Granada/CBUA

    The significance of heart failure in hospitalised patients with pulmonary embolism. A gender‐specific analysis

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    Background: Heart failure (HF) is a risk factor for the development of pulmonary embolism (PE). Few studies have examined sex differences in risk of PE among HF patients. Aims: (a) To examine the incidence, characteristics and in-hospital outcomes among patients hospitalised with PE according to HF status; (b) to compare the in-hospital mortality (IHM) after PE between HF and non-HF patients and (c) to identify variables associated with IHM. All analyses were stratified by sex. Methods: We included all adult patients hospitalised for PE from 1 January 2016 to 31 December 2018. Data were collected from the Spanish National Hospital Discharge Database. Poisson regression models were constructed to quantify the difference in the incidences between HF and non-HF populations. Propensity score matching (PSM) was used to obtain comparable subgroups by sex and HF status. Results: We identified 46,835 PE hospitalisations, 11.4% with HF. Adjusted incidence of PE was higher in HF patients than in those without HF (Incidence Rate Ratio 1.11; 95% CI 1.08-1.13). Crude and PSM adjusted IHM were significantly higher in men and women hospitalised with PE suffering HF than in men and women without HF (P < .001). Women with HF who suffered a PE had lower IHM than men with this condition (P < .001) after adjusting. Conclusions: Adjusted incidence of PE was higher in HF patients than in those without HF. After PSM suffering, HF was associated to higher IHM in men and women. Women with PE and HF had lower IHM than men with these conditions
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