A machine learning management model for QoE enhancement in next-generation wireless ecosystems

Next-generation wireless ecosystems are expected to comprise heterogeneous technologies and diverse deployment scenarios. Ensuring a good quality of service (QoS) will be one of the major challenges of next-generation wireless systems on account of a variety of factors that are beyond the control of network and service providers. In this context, ITU-T is working on updating the various Recommendations related to QoS and users\u27 quality of experience (QoE). Considering the ITU-T QoS framework, we propose a methodology to develop a global QoS management model for next-generation wireless ecosystems taking advantage of big data and machine learning. The results from a case study conducted to validate the model in real-world Wi-Fi deployment scenarios are also presented

QoE Enhancement in Next Generation Wireless Ecosystems: A Machine Learning Approach

Next-generation wireless ecosystems are expected to comprise heterogeneous technologies and diverse deployment scenarios. Ensuring quality of service (QoS) will be one of the major challenges on account of a variety of factors that are beyond the control of network and service providers in these environments. In this context, ITU-T is working on defining new Recommendations related to QoS and users\u27 quality of experience (QoE) for the 5G era. Considering the new ITU-T QoS framework, we propose a methodology to develop a global QoS management model for next generation wireless ecosystems taking advantage of big data and machine learning (ML). The methodological approach is based on the use of supervised and unsupervised ML techniques in order to identify both the KQIs relevant for the users and the network performance (NP) anomalies. The proposed methodology links the NP and QoE via inductive ML algorithms and provides information about the areas where corrective actions are required. The results from a case study conducted to validate the model in real-world Wi-Fi deployment scenarios are also presented

Global Quality of Service (QoX) Management for Wireless Networks

In the fast-changing technological landscape, novel applications are emerging with the potential to reshape the world. These applications, while promising, impose stringent requirements in terms of quality of service (QoS). The advent of wireless networks like 5G, 6G and Wi-Fi 6 brings about resource management solutions to ensure these requirements while meeting the user expectations within the interconnected environment. Nevertheless, user behaviors are also evolving, highlighting the importance of satisfaction and quality of experience (QoE). Furthermore, changes in user behavior trigger shifts in business models, where the quality of business (QoBiz) takes on a pivotal role. This evolving ecosystem, encompassing QoS, QoE, and QoBiz, demands a comprehensive and adaptable approach that conventional QoS management frameworks fail to perform. This paper introduces an implementation methodology for a global QoS management model named QoXphere. The implementation methodology is grounded in machine learning techniques and addresses the multifaceted aspects of quality of service (QoX) and their interconnections within wireless networks. The objective is to facilitate dynamic resource management that not only elevates user satisfaction but also optimizes provider benefits. Real-world examples illustrate the methodology’s applicability in widely deployed networks, complemented by simulated scenarios of modern network environments that further validate the approach.This research was partially supported by the Department of Education of the Basque Government, Spain, through the Consolidated Research Groups NQaS (IT1635-22) and by MCIN/AEI (10.13039/501100011033)

Mulsemedia in Telecommunication and Networking Education: A Novel Teaching Approach that Improves the Learning Process

The advent and increased use of new technologies, such as innovative mulsemedia and multi-modal content distribution mechanisms, have brought new challenges and diverse opportunities for technology enhanced learning (TEL). NEWTON is a Horizon 2020 European project that revolutionizes the educational process through innovative TEL methodologies and tools, integrated in a pan-European STEM-related learning network platform. This article focuses on one of these novel TEL methodologies (i.e., mulsemedia) and presents how NEWTON enables mulsemedia- enhanced teaching and learning of STEM subjects, with a particular focus on telecommunication and networking related modules. The article also discusses the very promising results of NEWTON case studies carried out with engineering students across two different universities in Spain and Ireland, respectively. The case studies focused on analyzing the impact on the learning process of the mulsemedia-enhanced teaching in the context of telecommunication and networking modules. The main conclusion of the article is that mulsemedia-enhanced education significantly increases students' learning experience and improves their knowledge gain

La negociación colectiva como vehículo para la implantación efectiva de medidas de igualdad

Esta monografía tiene su origen en el Proyecto “Ciclo de seminarios. La negociación colectiva como vehículo para la implantación efectiva de medidas de Igualdad”, que ha sido financiado por el Instituto de la Mujer del Ministerio de Sanidad, Servicios Sociales e Igualdad (Resolución de 30 de noviembre de 2015, del Instituto de la Mujer y para la Igualdad de Oportunidades, por la que se conceden subvenciones destinadas a la realización de postgrados de estudios de género y actividades del ámbito universitario relacionadas con la igualdad de oportunidades entre mujeres y hombres, para el año 2015)

Nitration of the Egg-Allergen Ovalbumin Enhances Protein Allergenicity but Reduces the Risk for Oral Sensitization in a Murine Model of Food Allergy

Nitration of proteins on tyrosine residues, which can occur due to polluted air under "summer smog" conditions, has been shown to increase the allergic potential of allergens. Since nitration of tyrosine residues is also observed during inflammatory responses, this modification could directly influence protein immunogenicity and might therefore contribute to food allergy induction. In the current study we have analyzed the impact of protein nitration on sensitization via the oral route.BALB/c mice were immunized intragastrically by feeding untreated ovalbumin (OVA), sham-nitrated ovalbumin (snOVA) or nitrated ovalbumin (nOVA) with or without concomitant acid-suppression. To analyze the impact of the sensitization route, the allergens were also injected intraperitoneally. Animals being fed OVA or snOVA under acid-suppressive medication developed significantly elevated levels of IgE, and increased titers of specific IgG1 and IgG2a antibodies. Interestingly, oral immunizations of nOVA under anti-acid treatment did not result in IgG and IgE formation. In contrast, intraperitoneal immunization induced high levels of OVA specific IgE, which were significantly increased in the group that received nOVA by injection. Furthermore, nOVA triggered significantly enhanced mediator release from RBL cells passively sensitized with sera from allergic mice. Gastric digestion experiments demonstrated protein nitration to interfere with protein stability as nOVA was easily degraded, whereas OVA and snOVA remained stable up to 120 min. Additionally, HPLC-chip-MS/MS analysis showed that one tyrosine residue (Y(107)) being very efficiently nitrated is part of an ovalbumin epitope recognized exclusively after oral sensitization.These data indicated that despite the enhanced triggering capacity in existing allergy, nitration of OVA may be associated with a reduced de novo sensitizing capability via the oral route due to enhanced protein digestibility and/or changes in antibody epitopes

Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

Una aproximación al deporte mixto

Si bien los trabajos provenientes de los estudios sociales del deporte argentino se han incrementado en los últimos años, su abordaje de la temática del género no ha tratado en profundidad las modalidades de juego mixto. Aspirando a realizar un aporte en este sentido, este artículo tiene como objetivo comparar dos prácticas amateurs y de contacto: el quadball, una actividad novedosa que se practica en Argentina desde 2006, y el fútbol 5, representado en la experiencia de los circuitos recreativos de la ciudad de La Plata. Desde un enfoque etnográfico, recuperando observaciones en instancias competitivas, amistosas y sociales, y entrevistas a deportistas, ponemos atención en las relaciones que se construyen en ellas entre los practicantes de distinto género, las reglamentaciones y el papel de la institucionalización. Concluimos que, mientras que en el quadball se observa una reproducción, a veces matizada, de sentidos y construcciones propias del deporte en tanto ámbito de dominio masculino, en el fútbol 5 estos vínculos incluyen desafíos a los mandatos sociales de género

Uma abordagem aos esportes mistos: Os casos do quadball e do futebol de 5 na Argentina

Si bien los trabajos provenientes de los estudios sociales del deporte argentino se han incrementado en los últimos años, su abordaje de la temática del género no ha tratado en profundidad las modalidades de juego mixto. Aspirando a realizar un aporte en este sentido, este artículo tiene como objetivo comparar dos prácticas amateurs y de contacto: el quadball, una actividad novedosa que se practica en Argentina desde 2006, y el fútbol 5, representado en la experiencia de los circuitos recreativos de la ciudad de La Plata. Desde un enfoque etnográfico, recuperando observaciones en instancias competitivas, amistosas y sociales, y entrevistas a deportistas, ponemos atención en las relaciones que se construyen en ellas entre los practicantes de distinto género, las reglamentaciones y el papel de la institucionalización. Concluimos que, mientras que en el quadball se observa una reproducción, a veces matizada, de sentidos y construcciones propias del deporte en tanto ámbito de dominio masculino, en el fútbol 5 estos vínculos incluyen desafíos a los mandatos sociales de géneroAlthough the works coming from the social studies of Argentine sport have increased in recent years, their approach to the issue of gender has not dealt in depth with mixed modalities of play. Aspiring to make a contribution in this sense, this article aims to compare two amateur and contact practices: quadball, a new activity that has been practiced in Argentina since 2006, and 5-a-side soccer, represented in the experience of recreational circuits of the city of La Plata. From an ethnographic approach, recovering observations in competitive, friendly and social instances, and interviews with athletes, we pay attention to the relationships that are built in them between practitioners of different genders, regulations and the role of institutionalization. We conclude that, while in quadball we observe a reproduction, sometimes nuanced, of the meanings and constructions of the sport as an area of male dominance, in 5-a-side football these links include challenges to social gender mandates.Embora os trabalhos provenientes dos estudos sociais do desporto argentino tenham aumentado nos últimos anos, a sua abordagem à questão do género não abordou em profundidade as modalidades mistas de jogo. Buscando contribuir nesse sentido, este artigo tem como objetivo comparar duas práticas amadoras e de contato: o quadball, atividade nova praticada na Argentina desde 2006, e o futebol de 5, representado na experiência dos circuitos recreativos de a cidade de La Plata. A partir de uma abordagem etnográfica, recuperando observações em instâncias competitivas, amigáveis e sociais, e entrevistas com atletas, atentamos para as relações que neles se constroem entre praticantes de diferentes géneros, as regulamentações e o papel da institucionalização. Concluímos que, enquanto no quadball observamos uma reprodução, por vezes matizada, dos significados e construções do desporto como área de dominação masculina, no futebol de 5 estas ligações incluem desafios aos mandatos sociais de género.Fil: Ibarrola, David Sebastián. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Instituto de Investigaciones "Gino Germani". Estudios Culturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Buzzo, Natalia Eva. Universidad Nacional de La Plata; Argentin