In Brazil, a substantial number of coronavirus disease (COVID-19) cases and deaths have been reported. It has become the second most affected country worldwide, as June 9, 2020. Official Brazilian government sources present contradictory data on impact disease; thus, it is possible that actual infected individuals in Brazil far larger than those officially very likely spread underestimated.This study investigates underreporting related to COVID-19 cities based public available from official...

Traffic demand in wireless communication systems has emerged as a key issue over recent decades. An ever-increasing trend is projected for the next few years, with explosive data traffic expected to materialize and mobile users imposing new quality of service requirements. This growing demand, combined increasingly complex heterogeneous network (HetNet) scenarios, presented ever more challenges operators terms service, coverage, load balancing, service. Considering traditional association...

This study examines the impact of COVID-19 pandemic on academic performance and student participation in National High School Exam (ENEM) state Pará, Brazil, focusing interaction between socioeconomic factors, access to technology, regional disparities. The research employed a mixed-methods approach, analyzing quantitative data from ENEM results (2020–2022) qualitative interviews with educators students. findings indicate that exacerbated pre-existing educational inequalities, particularly...

This paper presents an estimation of Quality Experience (QoE) metrics based on Service (QoS) in WiMAX networks. Applications used to generate such estimations were EvalVid and Network Simulator 2 (NS-2). The QoE was estimated by employing a Multilayer Artificial Neural means the WEKA tool. results show very efficient parameters with respect QoS parameters.

This study fills demand for data on access and use of information communication technologies (ICT) in the Brazilian legal Amazon, a region localities with identical economic, political, social problems. We 2010 Demographic Census to compile urban rural households (i) computers Internet access, (ii) mobile phones, (iii) fixed phones. To compare concentration ICT municipalities Amazon other regions Brazil, we index quantify following classes: no access. These are analyzed along municipal...

A comunicação de ondas milimétricas (mmWave) surge como parte essencial para as futuras redes quinta geração (5G), pois adotam frequências portadoras mais altas oferecendo alta largura banda, menor latência, entretanto, o desempenho do sistema se degrada devido à sensibilidade dos links obstáculos, por isso torna-se necessário a combinação 5G mmWave com UAV. Este trabalho apresenta uma análise da Qualidade Experiência (QoE) percebida pelo usuário, na transmissão vídeo num dupla utilizando...

The world faces a pandemic not previously experienced in modern times. internal mechanism of SARS-Cov-2 is well known and there are no Pharmaceutical Interventions available. To stem the spread virus, measures respiratory etiquette, social distancing hand hygiene have been recommended. Based on these measures, some countries already managed to control COVID-19 propagation, although absence pharmaceutical interventions, this definitive. However, we seen that heterogeneity across populations...

With advances in information technology for health and wellness, Smart Home-based solution providers using Internet of Things (IoT) technologies, have increased importance become accepted as an alternative means saving energy when based on Home Energy Management Systems (HEMS). This paper defines a modern architecture (SmartCoM), which is implemented to monitor manage residential dwellings by IoT technologies. involves setting out the parameters that can make interoperability possible...

Context: In 2022, tourism earned R$208 billion, 28% more than in 2021, indicating a growing interest on the part of travelers practical experiences during their trips, as well creating content such opinions, ratings, and recommendations. This has led both public private sectors to direct efforts improve service quality. Problem: Due large data volumes, discovering tourist profile manually becomes impractical, making it imperative adopt knowledge discovery techniques that automate this...

Abstract Resilience of urban mobility is an emerging topic, with most studies focusing on natural disasters or technical disturbances. However, there a gap in understanding the resilience and vulnerability face economic threats inadequate transport policies, particularly developing countries such as Brazil, characterized by social inequality segregation. This study sheds light issue inequalities segregation, aiming to identify vulnerable resilient areas Rio de Janeiro event crisis. We...

Long-term social security statistical forecasts produced and disseminated by the Brazilian government aim to provide accurate results that would serve as background information for optimal policy decisions. These are being used support government's proposed pension reform plans radically change Constitution insofar Social Security is concerned. However, reliability of official uncertain since no systematic evaluation these has ever been published or anyone else. This paper aims present a...

Mobile Edge Computing (MEC) extends Cloud to the edge of network, creating a hierarchy data centers. This paradigm provides computing capacity close final users, relieves backhaul and leading serves latency-sensitive applications. When providing services at different network levels, it becomes necessary carry out more efficient distribution resources that come coexist. A random allocation these can lead low service acceptance rate overhead problems. Problems like be solved with MEC. To...

Since December 2019, with the discovery of a new coronavirus, humanity has been exposed to large amount information from different media. Information is not always true and official. Known as an infodemic, false can increase negative effects pandemic by impairing data readability disease control. The paper aims find similar patterns behavior Brazilian population during 2021 in two analyses: vaccination all age groups using group 64 years or more, representing 13% population, multivariate...

Smart Grid, a modern approach to electricity distribution, requires innovation on various fronts. Communication is key component of Grid applicability. To satisfy Quality Service (QoS) needs when deciding network structure and topology, especially in urban areas, artificial intelligence techniques may be applied. Techniques such as clustering methods or genetic algorithms are useful resolve this optimization problem. Choice topology for specific electrical grid also important. This choice...

In the current national scene, many actions point at projects of digital inclusion and citizenship. this context, providing access technologies as a requisite for implementation these is primordial. way, innovative experiences have been presented in past few years. This paper presents study on Powerline Communication- PLC technology; proposal feasible network Brazilian Amazon. First, characteristics technology are studied from an implanted indoor prototype Federal University Para. The...

Broadband services require data rates that can only be achieved by using relatively high spectrum frequencies. At such frequencies, the DSL (Digital Subscriber Line) signal is more susceptible to external noise sources, as radio frequency interference and impulsive noise. This paper aims characterize how impacts on applications for a broadband system an ADSL2+ loop. The first approach was use defined in standards G.996.1 (Test Procedures Transceivers) from ITU-T TR-048 (ADSL Interoperability...

In the current national scene, many actions point at projects of digital inclusion and citizenship. this context, providing access technologies as a requisite for implementation these is primordial. way, innovative experiences have been presented in past few years. This paper presents study on powerline communication - PLC technology; proposal feasible network Brazilian Amazon. First, characteristics technology are studied from an implanted indoor prototype Federal University Para. The...

The femtocell concept aims to combine fixed-line broadband access with mobile telephony using the deployment of low-cost, low-power third and fourth generation base stations in subscribers' homes. While self-configuration femtocells is a plus, it can limit quality service (QoS) for users reduce efficiency network, based on outdated allocation parameters such as signal power level. To this end, paper presents proposal optimized co-channel macro-femto that enable public access, aiming maximize...

The number of social media platforms has increased significantly, as well the active users. More than 18.2 million text messages are transmitted every minute on these platforms. Given amount data available, Natural Language Processing (NLP) techniques have been used by several researchers to analyze this large unstructured data. Thus, it is essential understand analysis’s main trends and challenges. From perspective, study presents a systematic mapping NLP for analysis considering papers...

São inegáveis os esforços das agências de governo em adotar a linguagem simples. Não obstante, ainda é evidente necessidade ampliar esses para outras esferas, uma vez que simples fundamental permitir o entendimento claro da informação, promovendo inclusão cidadãos não possuem letramento suficiente. Na literatura, há diversos trabalhos dedicados à mensuração e complexidade textual, alguns utilizam métodos automáticos utilizando aprendizado máquina, quais carecem explicabilidade sobre como...

The increasing trend of triple play traffic transmission (voice, video and data) over internet is a worldwide phenomenon. However, to get satisfactory communication, we need study the process on end-the-end way. Into regions with little infrastructure telecommunications, one concerns about used technologies access. This work presents an analysis based IPTV (Television Internet Protocol) generated two combined access, PLC (PowerLine Communications) ADSL2+ (Asymmetric Digital Subscriber Line),...