Anemia in Heart Failure Patients

Heart failure is a very common disease, with severe morbidity and mortality, and a frequent reason of hospitalization. Anemia and a concurrent renal impairment are two major risk factors contributing to the severity of the outcome and consist of the cardio renal anemia syndrome. Anemia in heart failure is complex and multifactorial. Hemodilution, absolute or functional iron deficiency, activation of the inflammatory cascade, and impaired erythropoietin production and activity are some pathophysiological mechanisms involved in anemia of the heart failure. Furthermore other concomitant causes of anemia, such as myelodysplastic syndrome and chemotherapy, may worsen the outcome. Based on the pathophysiology of cardiac anemia, there are several therapeutic options that may improve hemoglobin levels, tissues' oxygenation, and probably the outcome. These include administration of iron, erythropoiesis-stimulating agents, and blood transfusions but still the evidence provided for their use remains limited

Service oriented cloud CPE as a means of a future terminal

The current CPE deployment model, which is based on deploying “intelligent” independent equipment in the customer premises, has important challenges that have been limiting the profitability of services for telecommunications service providers. Cloud CPE model provides a win for cost and service performance for the future, as it reduces onsite CPE complex requirements to a minimum and moves these features into the cloud, under service provider control. The financial analysis proves that the cCPE is a viable solution for the operators and also it is proved that can bring costs down for the operator but also for the end user and can be a viable solution for the 5G ecosystem

A cobertura política no Jornal das Dez

Analisa o peso dado às ações do governo federal na cobertura política do Jornal das Dez. Serão estudadas todas as edições do telejornal no mês de setembro, para avaliar, quantitativamente, o espaço dado à cobertura política no principal telejornal de uma TV fechada com as características específicas da Globonews, um canal que nasceu da maior emissora de TV do país e tem como proposta diferencial “produzir jornalismo, vinte e quatro horas por dia”. A esta análise estatística, alimentada pela coleta de dados, somar-se-á um estudo qualitativo da cobertura política realizada pelo telejornal. Também serão discutidas as possibilidades de aprofundamento e contextualização das notícias relacionadas ao contexto político nacional a partir da análise das estruturas de produção do programa selecionado

Control Framework for Ultra-dense cellular networks

The current work focuses on the current network deployments and the transition to the 5G era, toward encompassing the proposed approaches in the network design. In this direction, the base station densification gain and the control/coordination of the Radio Access Network (RAN) are being taken into account. The densification gain (with respect to the Base Station density) represents the ability of the network to offer the desired data rate and comply with other important key performance indices for a 5G environment. Finally, load balancing and offloading techniques are discussed which are going to play an important role in the future networks. A coordination framework for the whole RAN infrastructure has been described by setting the criteria and the control mechanisms for the management of the network

Efficient Resource Allocation and Spectrum Trading for Virtualized Multi-tenant 5G Networks

The huge increase of mobile devices and user data demand has initiated efforts for more efficient mobile network solutions. To this direction, virtualization has attracted much attention as a promising solution for higher resource utilization and improved system performance. Therefore, basic on-demand wireless resource allocation approaches among multiple tenants are investigated. Taking also into consideration two contrasting terms, the spectrum scarcity and the spectrum underutilization, this work proposes spectrum trading among frequency owners and tenants, enabling dynamic spectrum access and optimal management

Matching theory as enabler of efficient spectrum management in 5G networks

This is the peer reviewed version of the following article: Tsirakis, C, Lopez‐Aguilera, E, Agapiou, G, Varoutas, D. Matching theory as enabler of efficient spectrum management in 5G networks. Trans Emerging Tel Tech. 2020; 31:e3769., which has been published in final form at https://doi.org/10.1002/ett.3769. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.This paper analyzes the spectrum trading problem in virtualized fifth generation (5G) networks in order to enhance the network performance with respect to the spectrum utilization. The problem is modeled as a Many-to-Many Matching (M2MM) game with utility-based preferences and determines the matching between mobile network operators and mobile virtual network operators. The two proposed versions of utility functions for each set aim at maximizing the satisfaction of both sets with conflicting interests and improving the overall spectrum efficiency. In the simulation evaluation, the proposed scheme is compared with three different schemes in terms of the system utility, individual and pair matching satisfaction. We also investigate the scalability aspects, the strategy plan impact on the matching performance of our proposed scheme, and, at the same time, we attempt to make appropriate assumptions closer to reality. Our proposed scheme shows much better performance than the other schemes achieving a quite high level of satisfaction for the matching result on both sets.Postprint (author's final draft