Analysis of interworking functions in heterogeneous networks

Future cellular radio networks will enable mobile terminals to communicate in environments populated by a multitude of devices, technologies and business actors using several radio interfaces. In this environment, one important task is to develop common control functions for elements in such networks. One of today's challenges is to provide service continuity in those highly heterogeneous networks. The service continuity can be measured in terms of a satisfied user criteria, which consists e.g. of the perceived end to end data packet delay, i.e. transport layer packet delay. The IEEE 802.21 standard focuses on the support of media independent handover for a broad range of technologies, but with strong emphasis on 802 technologies. The Framework Programme (FP)7 European Project OMEGA investigates the performance of home networks, which consist of technologies like Wireless Local Area Networks (WLAN), Hybrid Wireless Optics (HWO) or Power Line Communications (PLC). The aim of this work is to investigate in the context of the OMEGA project, which functions of the IEEE 802.21 standard are needed in order to co-operate in heterogeneous home networks. Subsequently, their performance in terms of QoS evaluation are developed. One of the most important functions is the path selection since it establishes the flow between source and destination and simultaneously, deals with the reservation of resources. In this work an approach for the identification and selection of possible paths using signal flow graphs analytically has been evaluated. The scheme is based on ad hoc networks and the proposed algorithm is Bandwidth Guaranteed Source Routing (BGSR). The analysis provides information about the required delay in the selection and helps to evaluate the influence of the route selection in the uninterrupted provision of service. Another concept to be considered is the path re-selection mechanism. A comparative analysis of centralized and decentralized solutions is developed using SFGs as well and basing the evaluation on the latency of both mechanisms

Recommendations for the Implementation of Article 37 of the Spanish Science, Technology and Innovation Act: Open Access Dissemination

Handbook defines the main aspects of the national policy of open access and specifies what new roles to be taken by the groups involved in the production and market management of scientific information. Contains a chapter of specific recommendations for managers of public support for R + D + i, one for universities and research centers, one for researchers and other institutions subscribing to scientific journals. This document has been coordinated by FECYT under RECOLECTA activities whose actions are part of the collaboration agreement with REBIUN

Recomendaciones para la implementación del Artículo 37 Difusión en Acceso Abierto de la Ley de la Ciencia, la Tecnología y la Innovación

Guía práctica que define los aspectos principales de la política nacional de acceso abierto y especifica cuáles son los nuevos roles que habrán de adoptar los colectivos implicados en la producción y gestión del mercado de la información científica. Contiene un capítulo de recomendaciones específicas para gestores de ayudas públicas a la I+D+i, otro para las universidades y centros de investigación, otro para los investigadores y otro para las entidades suscriptoras de revistas científicas. Este documento ha sido coordinado por FECYT en el marco de las actividades de RECOLECTA, cuyas actuaciones se enmarcan en el convenio de colaboración con REBIUN

El uso de píldoras formativas como herramienta para maximizar el autoaprendizaje del estudiantado en el marco del proceso de digitalización de la educación superior. Especial atención a las ciencias jurídicas

Memoria ID-057 Ayudas de la Universidad de Salamanca para la innovación docente, curso 2020-2021

Analysis of the association between CD40 and CD40 ligand polymorphisms and systemic sclerosis.

Introduction: The aim of the present study was to investigate the possible role of CD40 and CD40 ligand (CD40LG) genes in the susceptibility and phenotype expression of systemic sclerosis (SSc). Methods: In total, 2,670 SSc patients and 3,245 healthy individuals from four European populations (Spain, Germany, The Netherlands, and Italy) were included in the study. Five single-nucleotide polymorphisms (SNPs) of CD40 (rs1883832, rs4810485, rs1535045) and CD40LG (rs3092952, rs3092920) were genotyped by using a predesigned TaqMan allele-discrimination assay technology. Meta-analysis was assessed to determine whether an association exists between the genetic variants and SSc or its main clinical subtypes. Results: No evidence of association between CD40 and CD40LG genes variants and susceptibility to SSc was observed. Similarly, no significant statistical differences were observed when SSc patients were stratified by the clinical subtypes, the serologic features, and pulmonary fibrosis. Conclusions: Our results do not suggest an important role of CD40 and CD40LG gene polymorphisms in the susceptibility to or clinical expression of SSc

Analysis of the association between CD40 and CD40 ligand polymorphisms and systemic sclerosis

Introduction: The aim of the present study was to investigate the possible role of CD40 and CD40 ligand (CD40LG) genes in the susceptibility and phenotype expression of systemic sclerosis (SSc). Methods: In total, 2,670 SSc patients and 3,245 healthy individuals from four European populations (Spain, Germany, The Netherlands, and Italy) were included in the study. Five single-nucleotide polymorphisms (SNPs) of CD40 (rs1883832, rs4810485, rs1535045) and CD40LG (rs3092952, rs3092920) were genotyped by using a predesigned TaqMan allele-discrimination assay technology. Meta-analysis was assessed to determine whether an association exists between the genetic variants and SSc or its main clinical subtypes. Results: No evidence of association between CD40 and CD40LG genes variants and susceptibility to SSc was observed. Similarly, no significant statistical differences were observed when SSc patients were stratified by the clinical subtypes, the serologic features, and pulmonary fibrosis. Conclusions: Our results do not suggest an important role of CD40 and CD40LG gene polymorphisms in the susceptibility to or clinical expression of SSc

Analysis of the association between CD40 and CD40 ligand polymorphisms and systemic sclerosis

Journal Article; Research Support, Non-U.S. Gov't;INTRODUCTION The aim of the present study was to investigate the possible role of CD40 and CD40 ligand (CD40LG) genes in the susceptibility and phenotype expression of systemic sclerosis (SSc). METHODS In total, 2,670 SSc patients and 3,245 healthy individuals from four European populations (Spain, Germany, The Netherlands, and Italy) were included in the study. Five single-nucleotide polymorphisms (SNPs) of CD40 (rs1883832, rs4810485, rs1535045) and CD40LG (rs3092952, rs3092920) were genotyped by using a predesigned TaqMan allele-discrimination assay technology. Meta-analysis was assessed to determine whether an association exists between the genetic variants and SSc or its main clinical subtypes. RESULTS No evidence of association between CD40 and CD40LG genes variants and susceptibility to SSc was observed. Similarly, no significant statistical differences were observed when SSc patients were stratified by the clinical subtypes, the serologic features, and pulmonary fibrosis. CONCLUSIONS Our results do not suggest an important role of CD40 and CD40LG gene polymorphisms in the susceptibility to or clinical expression of SSc.Ye

A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic.

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world

Analysis of interworking functions in heterogeneous networks

Future cellular radio networks will enable mobile terminals to communicate in environments populated by a multitude of devices, technologies and business actors using several radio interfaces. In this environment, one important task is to develop common control functions for elements in such networks. One of today's challenges is to provide service continuity in those highly heterogeneous networks. The service continuity can be measured in terms of a satisfied user criteria, which consists e.g. of the perceived end to end data packet delay, i.e. transport layer packet delay. The IEEE 802.21 standard focuses on the support of media independent handover for a broad range of technologies, but with strong emphasis on 802 technologies. The Framework Programme (FP)7 European Project OMEGA investigates the performance of home networks, which consist of technologies like Wireless Local Area Networks (WLAN), Hybrid Wireless Optics (HWO) or Power Line Communications (PLC). The aim of this work is to investigate in the context of the OMEGA project, which functions of the IEEE 802.21 standard are needed in order to co-operate in heterogeneous home networks. Subsequently, their performance in terms of QoS evaluation are developed. One of the most important functions is the path selection since it establishes the flow between source and destination and simultaneously, deals with the reservation of resources. In this work an approach for the identification and selection of possible paths using signal flow graphs analytically has been evaluated. The scheme is based on ad hoc networks and the proposed algorithm is Bandwidth Guaranteed Source Routing (BGSR). The analysis provides information about the required delay in the selection and helps to evaluate the influence of the route selection in the uninterrupted provision of service. Another concept to be considered is the path re-selection mechanism. A comparative analysis of centralized and decentralized solutions is developed using SFGs as well and basing the evaluation on the latency of both mechanisms

Analysis of interworking functions in heterogeneous networks

Future cellular radio networks will enable mobile terminals to communicate in environments populated by a multitude of devices, technologies and business actors using several radio interfaces. In this environment, one important task is to develop common control functions for elements in such networks. One of today's challenges is to provide service continuity in those highly heterogeneous networks. The service continuity can be measured in terms of a satisfied user criteria, which consists e.g. of the perceived end to end data packet delay, i.e. transport layer packet delay. The IEEE 802.21 standard focuses on the support of media independent handover for a broad range of technologies, but with strong emphasis on 802 technologies. The Framework Programme (FP)7 European Project OMEGA investigates the performance of home networks, which consist of technologies like Wireless Local Area Networks (WLAN), Hybrid Wireless Optics (HWO) or Power Line Communications (PLC). The aim of this work is to investigate in the context of the OMEGA project, which functions of the IEEE 802.21 standard are needed in order to co-operate in heterogeneous home networks. Subsequently, their performance in terms of QoS evaluation are developed. One of the most important functions is the path selection since it establishes the flow between source and destination and simultaneously, deals with the reservation of resources. In this work an approach for the identification and selection of possible paths using signal flow graphs analytically has been evaluated. The scheme is based on ad hoc networks and the proposed algorithm is Bandwidth Guaranteed Source Routing (BGSR). The analysis provides information about the required delay in the selection and helps to evaluate the influence of the route selection in the uninterrupted provision of service. Another concept to be considered is the path re-selection mechanism. A comparative analysis of centralized and decentralized solutions is developed using SFGs as well and basing the evaluation on the latency of both mechanisms