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  • Rural Digital Europe
  • 2019-2023
  • Open Access
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: RAMOS, M. Y.; GARAGORRY, F. L.;

    Este artigo examina a distribuição espacial e a dinâmica da produção agropecuária da região do MATOPIBA, Brasil, usando técnicas de natureza visual e quantitativa. Utilizou-se a análise de redes, para modelar a estrutura produtiva da região, para anos selecionados do período de 1990 a 2012, e o conceito matemático de distância para medir a intensidade das mudanças interanuais. Consideraram-se 65 produtos cuja produção está estabelecida em ao menos uma das 31 microrregiões componentes. Os resultados indicam a coexistência de distintos perfis produtivos na região que foram se diferenciando ao longo do período analisado, embora tenha persistido um núcleo relativamente estável de microrregiões que compartilham a produção de itens dos domínios da pecuária e dos produtos da pecuária. Esses resultados mostram, também, o uso da modelagem com redes como técnica analítica válida nos estudos regionais sobre agricultura. Made available in DSpace on 2019-11-18T18:08:53Z (GMT). No. of bitstreams: 1 Mudancasespaciaisnaproducaoagropecuaria.pdf: 2923279 bytes, checksum: 04e25ba8208b8c8f4d398eb7b5d8265a (MD5) Previous issue date: 2019 Título em inglês: Spatial changes in the agricultural production of the MATOPIBA region, Brazil: an application of the network analysis.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Repositório Instituc...arrow_drop_down
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    Authors: Olival Teixeira Malta; Sthefany Hevhanie Vila Verde Souza; Mariane de Jesus da Silva de Carvalho; Eva Maria Rodrigues Costa; +2 Authors

    Aloe plants have a great therapeutic potential, which is attributed to the several bioactive compounds found in their composition. Therefore, the objective of this work was to evaluate the profile of secondary metabolites and the morphophysiological characteristics of Aloe plants collected at different periods and submitted to different growing conditions. So, axillary buds were collected at two different periods and grown in vitro in MS culture medium containing naphthalene acetic acid (NAA) and 6-benzylaminopurine (BAP) under controlled conditions for 30 days. Then, the morphophysiological characterization and the analysis of the profile of metabolites produced by the plants were performed (HS-SPME / GC-MS techniques). The results showed that the BAP concentrations did not influence the morphophysiological characteristics of the plants. Almost all plants showed a 100% rooting percentage (RP) when grown in vitro, both with and without BAP in the nutrient medium. Only the plants subjected to BAP concentration of 3 mg L-1 showed a lower RP. The rise in BAP concentrations also promotes a reduction in the total area of ​​volatile organic compounds (VOCs) in plants. Some compounds (hexanal; 2-hexenal; 1-hexanol; 1-nonanol; 2-decanone; beta-ionone) showed a significant reduction (> 0.10%) in their concentration as the concentration of BAP was incremented in the medium cultivation. Nevertheless, the in vitro cultivated plants showed a greater total area and concentration of VOCs than the in vivo cultivated plants. A babosa possui grande potencial terapêutico, o qual é atribuído aos diversos compostos bioativos presentes em sua composição. Logo, o objetivo deste trabalho foi avaliar o perfil dos metabólitos secundários e as características morfofisiológicas em plantas de babosa coletadas em épocas distintas e submetidas a diferentes condições de cultivo. Para isso, gemas axilares foram coletas em 2 épocas distintas e cultivadas in vitro em meio de cultura MS contendo ácido naftalenoacético (ANA) e 6-benzilaminopurina (BAP) sob condições controladas durante 30 dias. Em seguida, foi realizada a caracterização morfofisiológica e a análise do perfil de metabolitos produzidos pelas plantas (técnicas HS-SPME/GC-MS). Constatou-se por meio dos resultados que as concentrações de BAP não influenciaram nas características morfofisiológicas das plantas. Quase todas as plantas apresentaram 100% de porcentagem de enraizamento (PR) quando cultivadas in vitro, tanto na ausência quanto na presença de BAP no meio nutritivo. Apenas as plantas submetidas a concentração de BAP de 3 mg L-1 apresentaram PR inferior. O aumento das concentrações de BAP também promoveu a redução da área total dos compostos orgânicos voláteis (COV’s) das plantas. Alguns compostos (hexanal; 2-hexenal; 1-hexanol; 1-nonanol; 2-decanona; beta-ionona) apresentaram diminuição significativa (>0,10%) da sua concentração à medida em que houve aumento da concentração de BAP ao meio de cultivo. Contudo, as plantas cultivadas in vitro apresentaram maior área total e concentração dos COV’s do que as plantas cultivadas in vivo.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Revista de Ciências ...arrow_drop_down
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    Authors: Silva, Itamar Ferreira; Alves, Daniel Ferreira;

    This paper presents a new term for studies related to the development of bioinspired solutions – vernacular biomimetics – which can have two forms of action. The first consists of identifying and recording the technical solutions conceived by social groups that have direct contact with nature, such as sertanejo (from the Sertão region), indigenous and quilombola people; and the second is related to the development of biomimetic solutions focused on improving the living conditions of these groups, starting with local action. Within this second approach, family farming tools were redesigned, taking into account the methodological process of product design, using as references natural devices present in the fauna of the semi-arid and Zona da Mata regions in Northeastern Brazil. O referido artigo apresenta uma nova nomenclatura para estudos relacionados ao desenvolvimento de soluções bioinspiradas – a biomimética vernacular – que pode ter duas formas de atuação. A primeira consiste em identificar e registrar as soluções técnicas concebidas por grupos sociais que possuem contato direto com a natureza como o sertanejo, o indígena e o quilombola; e a segunda está relacionada ao desenvolvimento de soluções biomiméticas com foco na melhoria das condições de vida desses grupos, partindo para uma atuação local. Dentro desta segunda abordagem foi realizado o redesenho de ferramentas para agricultura familiar levando em consideração o processo metodológico do design de produto tomando como referências os dispositivos naturais presentes na fauna do Semiárido e Zona da Mata nordestina.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
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    Authors: Farias, José Lucas Nunes de; Oliveira, Matteus Freitas de; Pereira, Jackson Belo;

    This work aimed to carry out a survey and classification about the uses and land cover in the territory of the fishing community of the São Pedro village in Jaramataia, Alagoas, using geoprocessing as a support. For this, the LANDSAT 8 image, scene 215/067, was used, which was processed using unsupervised and supervised algorithms using the Envi 5.3 software. For the unsupervised classification, the interpolation generated 7 classes that presented several data conflicts. For the supervised, eight classes were identified and characterized: steppe wooded savannas, secondary steppe savannas, seasonal wooded steppe, temporary crop or pasture, permanent crop, exposed soil, urban area and water bodies with emphasis on artisanal fishing. With that, it was observed that the area has a high degree of anthropization and the relevant patch of native vegetation is concentrated in the most accentuated elevation levels of the difficult to access relief. This study opens the possibility for the management of the territory based on the appropriation of information from the areas of use and coverage and the generation of public policies that promote local development based on sustainable actions. Este trabajo tuvo como objetivo llevar a cabo una encuesta y clasificación sobre los usos y la cobertura del suelo en el territorio de la comunidad pesquera de la aldea de São Pedro en Jaramataia, Alagoas, utilizando el geoprocesamiento como apoyo. Para esto, se utilizó la imagen LANDSAT 8, escena 215/067, que se procesó utilizando algoritmos supervisados y sin supervisión utilizando el software Envi 5.3. Para la clasificación no supervisada, la interpolación generó 7 clases que presentaron varios conflictos de datos. Para los supervisados, se identificaron y caracterizaron ocho clases: sabanas boscosas esteparias, sabanas esteparias secundarias, estepas boscosas estacionales, cultivos temporales o pasturas, cultivos permanentes, suelo expuesto, área urbana y cuerpos de agua con énfasis en la pesca artesanal. Con eso, se observó que el área tiene un alto grado de antropización y el parche relevante de vegetación nativa se concentra en los niveles de elevación más acentuados del relieve de difícil acceso. Este estudio abre la posibilidad de gestionar el territorio en función de la apropiación de información de las áreas de uso y cobertura y la generación de políticas públicas que promuevan el desarrollo local basado en acciones sostenibles. Este trabalho objetivou efetuar um levantamento e classificação sobre os usos e cobertura do solo no território da comunidade pesqueira do povoado São Pedro em Jaramataia, Alagoas, utilizando como suporte o geoprocessamento. Para isso utilizou-se a imagem LANDSAT 8, cena 215/067, que foi processada através de algoritmos não supervisionados e supervisionados usando o software Envi 5.3. Para a classificação não supervisionada a interpolação gerou 7 classes que apresentou vários conflitos de dados. Para a supervisionada foi identificada e caracterizada oito classes: savanas estépicas arborizadas, savanas estépicas secundárias, estepe estacional arborizada, lavoura temporária ou pastagem, lavoura permanente, solo exposto, área urbana e corpos d’água com destaque para a pesca artesanal. Com isso, observou-se que a área possui elevado grau de antropização e a mancha relevante de vegetação nativa se concentra nas cotas altimétricas mais acentuadas do relevo de difícil acesso. Esse estudo abre possibilidade para a gestão do território a partir da apropriação de informações das áreas de uso e cobertura e geração de políticas públicas que promovam o desenvolvimento local com base em ações sustentáveis.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
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    Authors: Medeiros, Raimundo Mainar de; Saboya, Luciano Marcelo Falle; França, Manoel Vieira de; Holanda, Romildo Morant de; +2 Authors

    The objective is to characterize and analyze the anomalous rainfall between the municipalities of Alagoa Nova and Lagoa Seca, understanding the anomalous climate oscillations, with the probable influence and occurrence of El Niño and La Niña climate phenomena, in the citrus and horticulture sector, and the calculation of rainfall anomalies. We used the total annual rainfall for the period 1983-2019 for the municipalities of Lagoa Seca and Alagoa Nova - Paraíba and performed the classification according to the intensity of El Niño and La Niña phenomena, calculating their annual anomaly taking into account their respective averages. However, do not rule out that in most years with negative anomalies occurred so equal to La Niña and El Niño phenomena, the opposite can be registered for the case of El Niño that occurred negative anomalies and La Niña positive anomalies both of increased or reduced intensity. Therefore, it can not be said that ENSO has not influenced the local rainfall in the regions studied, and that ENSO is not the main climatic and/or environmental element contributing to the occurrence of extreme rainfall events. It is necessary to evaluate other climatic phenomena and the regional environmental profile in order to justify the rainfall variability. The influence of local factors on the spatial distribution of rainfall is evident in the El Nina and La Nina graphs, highlighted by the anomalies. The rainfall concentration is due to the favorable controlling factors, relief, approach to the Borborema plateau and the vegetation. The lower accumulations were caused by the cooling of the tropical Atlantic and the blockages in the local and regional systems. El objetivo es caracterizar y analizar la anomalía pluvial entre los municipios Alagoa Nova y Lagoa Seca comprendiendo las oscilaciones climáticas anómalas, con la probable influencia y ocurrencia de los fenómenos climáticos El Niño y La Niña, en el sector citrícola y hortícola, realizándose el cálculo de las anomalías pluviales. Se utilizaron las precipitaciones totales anuales del período 1983-2019 para los municipios de Lagoa Seca y Alagoa Nova - Paraíba y se realizó la clasificación según la intensidad de los fenómenos de El Niño y La Niña, calculando su anomalía anual teniendo en cuenta su respectiva media. Sin embargo, no hay que descartar que en la mayoría de los años con anomalías negativas se produzcan de la misma manera a los fenómenos de La Niña y El Niño, lo contrario se puede registrar para el caso de El Niño que se produjeron anomalías negativas y La Niña anomalías positivas ambas de mayor o menor intensidad. Por lo tanto, no se puede afirmar que el ENSO no haya influido en los índices pluviométricos locales de las regiones estudiadas, y que el ENSO no sea el principal elemento climático y/o ambiental que contribuye a la aparición de eventos pluviométricos extremos. Es necesario evaluar otros fenómenos climáticos y el perfil ambiental regional para justificar la variabilidad de las precipitaciones. La influencia de los factores locales en la distribución espacial de las precipitaciones es evidente en los gráficos de El Niño y La Niña, resaltados por las anomalías. La concentración de las precipitaciones se debe a los factores de control favorables, el relieve, la aproximación de la meseta de Borborema y la vegetación. Las menores acumulaciones fueron causadas por el enfriamiento del Atlántico tropical y los bloqueos en los sistemas locales y regionales. O objetivo é caracterizar e analisar a anomalia pluviometria entre os municípios Alagoa Nova e Lagoa Seca entendendo as oscilações anômalas climática, com a provável influência e ocorrência dos fenômenos climáticos El Niño e La Niña, no setor da citricultura e hortifrút, sendo realizado o cálculo das anomalias pluviais. Utilizou-se dos totais anuais pluviais do período de 1983-2019 para os municípios de Lagoa Seca e Alagoa Nova – Paraíba e realizou-se a classificação segundo a Intensidade dos fenômenos El Niño e La Niña, calculando sua anomalia anual levando em considerado as suas respectivas média. Todavia, não se descartar que na maioria dos anos com anomalias negativas ocorreram de forma igualadas à fenômenos La Niña e El Niño, o contrário pode ser registrado para o caso do El Niño que ocorreu anomalias negativa e na La Niña anomalias positivas ambos de intensidade aumentadas ou reduzidas. Portanto, nada se pode afirmar que nas regiões estudada os fenômenos ENOS não influenciaram nos seus índices pluviais locais, e que o ENOS não é o principal elemento climático e/ou ambiental os quais contribui para a ocorrência de eventos extremos pluviais. Sendo necessário buscar avaliar outros fenômenos climáticos e o perfil ambiental regional visando justificar a variabilidade pluvial. A influência dos fatores locais na distribuição espacial da chuva é evidente nos gráficos de El Nina e La Nina, destacados pelas anomalias. A concentração pluviométrica é devida aos fatores controladores favoráveis, relevo, aproximação do planalto da Borborema e a vegetação. Os acumulados mais baixos foram ocasionados pelo resfriamento do atlântico tropical e os bloqueios nos sistemas locais e regionais.

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    Authors: Souza, Igor Viana; Duarte, Victor Braga Rodrigues; Silva, Francisca de Cássia Silva da; Cardoso Silva, Marcos; +4 Authors

    O objetivo deste trabalho é descrever, através de revisão da literatura, o uso dos sensores remotos integrados aos Veículos Aéreos Não tripulados (VANT). Os tipos sensores e seu funcionamento também são apresentados além dos métodos de processamento e aplicações na silvicultura e na proteção contra incêndios florestais. O VANT foi utilizado inicialmente em atividades militares, principalmente para atender monitoramento de áreas de difícil acesso, consideradas inósptas para o ser humano. Com o desenvolvimento tecnológico dos veículos equipados com Sistema Globais de Navegação por Satélite (GNSS) e minituarização dos sensores possibilitaram a captação da energia eletromagnética refletida e transmitida pelos alvos na superfície, sendo posteriormente convertida em sinais elétricos de maneira que podem ser armazenadas ou transmitidas em tempo real. Os dados capturados pelos sensores são processados para serem utilizados no processo de aquisição de informações dos objetos observados na superfície terrestre para serem aplicados no gerenciamento dos recursos florestais. The objective of this work is to describe, through the literature review, or the use of remote sensors integrated to unmanned vehicles (UAV). The types of sensors and their operation are also described in addition to the processing methods and applications in forestry and protection against forest fires. The UAV was used for military activities, mainly for monitoring areas of difficult access, for human use. With the technological development of vehicles equipped with the Global Satellite Navigation System (GNSS) and minimization of sensors made possible to capture electromagnetic electrical energy reflected and transmitted by targets on the surface, being converted into traffic signals so that they can be stored or transmitted in real time. The data captured by the sensors are processed to be used in the process of using information from objects observed on the earth's surface to be used in the management of forest resources.

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    Authors: Anazawa, Tathiane Mayumi; Santos, Ana Carolina de Faria; Monteiro, Antonio Miguel Vieira; Amaral, Silvana;

    This study aims to identify the presence of population and human infrastructure in protected areas in the Metropolitan Region of Vale do Paraíba and Litoral Norte (RMVPLN). The study was supported by the use of a new base of statistical sapatial data from the Demographic Census and remote sensing data as nighttime light dataset, through an auxiliary representation to characterize the metropolitan space and its different territories. The analysis was constructed from Occupation Typologies based on the integration of population information, nighttime lights and protected areas, and the results showed a preliminary diagnosis of potential conflicts between local needs, as was the case analyzed at Campos do Jordão Park, site chosen for remote verification of Typologies. These areas need to be detailed and verified in the context of metropolitan planning to considered the regional heterogeneity and specificities of each territories that form the RMVPLN. O trabalho tem como objetivo identificar a presença de população e infraestruturas em áreas protegidas legalmente definidas, na Região Metropolitana do Vale do Paraíba e Litoral Norte (RMVPLN). O estudo foi apoiado no uso de novas bases de dados espaciais estatísticos provenientes do Censo Demográfico, e dados de sensoriamento remoto de luzes noturnas através de uma representação auxiliar para caracterizar o espaço metropolitano e seus diferentes territórios. A análise foi realizada a partir da construção de Tipologias de Ocupação, baseadas na integração de informações de população, luzes noturnas e áreas protegidas, cujos resultados possibilitaram um diagnóstico preliminar sobre potenciais conflitos entre necessidades locais, como foi o caso analisado no Parque Estadual de Campos do Jordão, local escolhido para a verificação remota das Tipologias. Estas áreas merecem detalhamento e verificação no âmbito do planejamento metropolitano, para que sejam consideradas a heterogeneidade regional e as especificidades dos diferentes territórios que formam a RMVPLN.

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    Authors: da Silva Lopes, Estefane; Emanuela Ribeiro Horta, Karla; Campos, Marcus André Siqueira;

    No período recente, as mudanças climáticas globais verificadas pelo aumento da temperatura decorrente de ações antrópicas é uma das principais problemáticas ambientais. Em se tratando do aumento de temperatura entre áreas urbanas e rurais, numa escala local ou regional, os estudos tendem a avaliar o fenômeno das ilhas de calor. Compreender a importância do estudo das ilhas de calor urbanas, suas principais investigações e ocorrências podem contribuir para análise do fenômeno nos países de urbanização tardia. Sendo assim, o objetivo deste trabalho foi investigar , por meio de uma análise cienciométrica, o estado da arte das pesquisas de ilha de calor entre os anos de 2000 a 2020. A partir das definições iniciais, obteve-se uma triagem de 169 artigos. Para esse universo foi avaliada toda a produção científica; incluindo país, ano, autores, instituições, palavras-chave, jornal (fator de impacto), clima, população e área geográfica. A metodologia empregada permite afirmar que o número de publicações relacionadas a ilhas de calor urbanas tem aumentado constantemente desde 2000. O país que mais se destacou foi a China, responsável por cerca de 40% do total dos artigos sobre ilhas de calor urbanas. Chinese Academy of Sciences e Nanjing University, foram as duas Universidades da China em que mais publicaram artigos sobre ilhas de calor urbanas. A modelagem continua sendo o principal método, e o uso de ferramentas de sensoriamento remoto vem cada vez mais tomando destaque. En el período reciente, el aumento de la temperatura global verificado por el período del cambio climático es uno de los principales cambios ambientales. Cuando se trata del aumento de la temperatura urbana entre áreas y áreas rurales, a escala local o regional, los estudios tienden a evaluar el fenómeno de la isla de calor. Comprender la importancia urbana del calor, sus principales industrias y la investigación puede contribuir al análisis del fenómeno en países con urbanización tardía. Para ello, se desarrolló una cienciometría sobre los estudios que se centraron en este análisis temático en el período de 2000 a 2020, cuya investigación resultó en 169 artículos. Toda la producción fue para este universo; incluyendo país, año, autores, instituciones, palabras clave, revista (factor de impacto), clima, población y área geográfica. La metodología utilizada permite afirmar que el número urbano de publicaciones relacionadas con las islas de calor urbanas ha aumentado constantemente en el año 2000. El país que más se destacó fue China, responsable de alrededor del 40% del número total de artículos sobre islas de calor. La Academia de Ciencias de China, la Universidad de Nanjing, fueron las dos universidades de China que publicaron la mayor cantidad de artículos sobre islas de calor urbanas. El modelado sigue siendo el método principal, y el uso de herramientas de teledetección se destaca cada vez más. In the recent period, increase in global temperature verified by the period of climate change is one of the main environmental changes. When it comes to the increase in urban temperature between areas and rural areas, on a local or regional scale, studies tend to assess the heat island phenomenon. Understanding the urban importance of heat, its main industries and research can contribute to the analysis of the phenomenon in countries with late urbanization. For, a scientometric was developed on the studies that focused on this thematic analysis in the period from 2000 to 2020, whose research resulted in 169 articles. The entire production went to this universe; including country, year, authors, institutions, keywords, journal (impact factor), climate, population and geographic area. The methodology used allows us to state that the urban number of publications related to urban heat islands has increased constantly in 2000. The country that stood out the most was China, responsible for about 40% of the total number of articles on heat islands. Chinese Academy of Sciences, Nanjing University, were the two universities in China that published the most articles on urban heat islands. Modeling remains the main method, and the use of remote sensing tools is increasingly highlighted.

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    Authors: Marques, Frank Borges; Freitas, Vérica; Paula, Veronica Angelica Freitas de;

    RESUMO Este estudo analisa implicações da digitalização e o surgimento dos Bancos Digitais no Brasil. Para tanto, descreve a evolução dos canais de atendimento (2011-2018) e a regulamentação relacionada (2013-2019), bem como analisa implicações causadas ao mercado e as interações dos clientes do Nubank®. Este artigo utiliza abordagem qualitativa, com etapas descritiva e exploratória, dados secundários e análise documental. Como resultados, o estudo apontou: iniciativas de investimento em digitalização da relação com clientes; ampliação do uso de estratégias de comunicação dos Bancos Digitais pelos Bancos Tradicionais; 16 normativos do Banco Central Brasileiro sobre o tema; e que a maioria dos clientes Nubank® atua como promotores da marca. ABSTRACT This study analyzes the implications of digitalization and the emergence of Digital Banks in Brazil. Therefore, it describes the evolution of service channels (2011-2018) and related regulations (2013-2019). It analyzes implications caused to the market and Nubank® customer interactions. It uses a qualitative approach, descriptive and exploratory steps, secondary data and document analysis. As a result, the study pointed out: investment initiatives in the digitalization of customer relations; expansion of the use of communication strategies of Digital Banks by Traditional Banks; 16 regulations issued by the Brazilian Central Bank on the subject; and that the majority of Nubank® customers act as brand promoters.

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    Authors: NATALIA SILVA DE SOUZA;

    Fruit flies (Diptera, Tephritidae) stand out as the most harmful pests to fruit crops in different parts of the planet. Biological pest control is one of the alternatives used in integrated management programs for fruit flies to help reduce the population density of these insects. This work aims to contribute to the expansion of scientific knowledge about the distribution of fruit flies in the territory of Pará, identifying species of occurrence, their host plants and their parasitoids. The study was conducted in a representative municipality of Nordeste Paraense, particularly in the municipality of Tomé-açu. The fruit samples were randomly collected. The emerged parasitoids were identified in the Entomology Laboratory of Embrapa Eastern Amazon and Embrapa Amapá. In the municipality of Tomé-Açu, acerola (Malpighia punicifolia), taperebá (Spondias mombin), guava (Psidium guajava), ingá (Inga edulis) and mango (Mangifera indica) are important population repositories of fruit fly species. Only Anastrepha species occur and infest fruit trees in the studied region. We report the first associations for the State of Pará: A. sororcula and A. fraterculus in carambola (Averrhoa carambola); A. obliqua in camu camu (Myrciaria dubia), cashew (Anacardium occidentale), abiu (Pouteria caimito) and mango. And yet, the first association of A. distincta in mango for Brazil. As moscas-das-frutas (Diptera, Tephritidae) se destacam como as pragas mais prejudiciais a cultivos de frutas em diferentes partes do planeta. O controle biológico de pragas é uma das alternativas utilizadas em programas de manejo integrado de moscas-das-frutas por auxiliar a redução da densidade populacional desses insetos. Este trabalho tem como objetivo contribuir para a ampliação do conhecimento científico acerca da distribuição de moscas-das-frutas no território paraense, identificando espécies de ocorrência, suas plantas hospedeiras e seus parasitoides. O estudo foi conduzido em município representativo do Nordeste Paraense, particularmente no município de Tomé-açu. As amostras de frutos foram coletadas ao acaso. Os parasitoides emergidos foram identificados no Laboratório de Entomologia da Embrapa Amazônia Oriental e da Embrapa Amapá. No município de Tomé-Açu, acerola (Malpighia punicifolia), taperebá (Spondias mombin), goiaba (Psidium guajava), ingá (Inga edulis) e manga (Mangifera indica) constituem importantes repositórios populacionais de espécies de moscas-das-frutas. Somente espécies de Anastrepha ocorrem e infestam fruteiras na região estudada. Reportamos as primeiras associações para o Estado do Pará: A. sororcula e A. fraterculus em carambola (Averrhoa carambola); A. obliqua em camu camu (Myrciaria dubia), caju (Anacardium occidentale), abiu (Pouteria caimito) e manga. E ainda, a primeira associação de A. distincta em manga para o Brasil.

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    Authors: RAMOS, M. Y.; GARAGORRY, F. L.;

    Este artigo examina a distribuição espacial e a dinâmica da produção agropecuária da região do MATOPIBA, Brasil, usando técnicas de natureza visual e quantitativa. Utilizou-se a análise de redes, para modelar a estrutura produtiva da região, para anos selecionados do período de 1990 a 2012, e o conceito matemático de distância para medir a intensidade das mudanças interanuais. Consideraram-se 65 produtos cuja produção está estabelecida em ao menos uma das 31 microrregiões componentes. Os resultados indicam a coexistência de distintos perfis produtivos na região que foram se diferenciando ao longo do período analisado, embora tenha persistido um núcleo relativamente estável de microrregiões que compartilham a produção de itens dos domínios da pecuária e dos produtos da pecuária. Esses resultados mostram, também, o uso da modelagem com redes como técnica analítica válida nos estudos regionais sobre agricultura. Made available in DSpace on 2019-11-18T18:08:53Z (GMT). No. of bitstreams: 1 Mudancasespaciaisnaproducaoagropecuaria.pdf: 2923279 bytes, checksum: 04e25ba8208b8c8f4d398eb7b5d8265a (MD5) Previous issue date: 2019 Título em inglês: Spatial changes in the agricultural production of the MATOPIBA region, Brazil: an application of the network analysis.

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    Authors: Olival Teixeira Malta; Sthefany Hevhanie Vila Verde Souza; Mariane de Jesus da Silva de Carvalho; Eva Maria Rodrigues Costa; +2 Authors

    Aloe plants have a great therapeutic potential, which is attributed to the several bioactive compounds found in their composition. Therefore, the objective of this work was to evaluate the profile of secondary metabolites and the morphophysiological characteristics of Aloe plants collected at different periods and submitted to different growing conditions. So, axillary buds were collected at two different periods and grown in vitro in MS culture medium containing naphthalene acetic acid (NAA) and 6-benzylaminopurine (BAP) under controlled conditions for 30 days. Then, the morphophysiological characterization and the analysis of the profile of metabolites produced by the plants were performed (HS-SPME / GC-MS techniques). The results showed that the BAP concentrations did not influence the morphophysiological characteristics of the plants. Almost all plants showed a 100% rooting percentage (RP) when grown in vitro, both with and without BAP in the nutrient medium. Only the plants subjected to BAP concentration of 3 mg L-1 showed a lower RP. The rise in BAP concentrations also promotes a reduction in the total area of ​​volatile organic compounds (VOCs) in plants. Some compounds (hexanal; 2-hexenal; 1-hexanol; 1-nonanol; 2-decanone; beta-ionone) showed a significant reduction (> 0.10%) in their concentration as the concentration of BAP was incremented in the medium cultivation. Nevertheless, the in vitro cultivated plants showed a greater total area and concentration of VOCs than the in vivo cultivated plants. A babosa possui grande potencial terapêutico, o qual é atribuído aos diversos compostos bioativos presentes em sua composição. Logo, o objetivo deste trabalho foi avaliar o perfil dos metabólitos secundários e as características morfofisiológicas em plantas de babosa coletadas em épocas distintas e submetidas a diferentes condições de cultivo. Para isso, gemas axilares foram coletas em 2 épocas distintas e cultivadas in vitro em meio de cultura MS contendo ácido naftalenoacético (ANA) e 6-benzilaminopurina (BAP) sob condições controladas durante 30 dias. Em seguida, foi realizada a caracterização morfofisiológica e a análise do perfil de metabolitos produzidos pelas plantas (técnicas HS-SPME/GC-MS). Constatou-se por meio dos resultados que as concentrações de BAP não influenciaram nas características morfofisiológicas das plantas. Quase todas as plantas apresentaram 100% de porcentagem de enraizamento (PR) quando cultivadas in vitro, tanto na ausência quanto na presença de BAP no meio nutritivo. Apenas as plantas submetidas a concentração de BAP de 3 mg L-1 apresentaram PR inferior. O aumento das concentrações de BAP também promoveu a redução da área total dos compostos orgânicos voláteis (COV’s) das plantas. Alguns compostos (hexanal; 2-hexenal; 1-hexanol; 1-nonanol; 2-decanona; beta-ionona) apresentaram diminuição significativa (>0,10%) da sua concentração à medida em que houve aumento da concentração de BAP ao meio de cultivo. Contudo, as plantas cultivadas in vitro apresentaram maior área total e concentração dos COV’s do que as plantas cultivadas in vivo.

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    Authors: Silva, Itamar Ferreira; Alves, Daniel Ferreira;

    This paper presents a new term for studies related to the development of bioinspired solutions – vernacular biomimetics – which can have two forms of action. The first consists of identifying and recording the technical solutions conceived by social groups that have direct contact with nature, such as sertanejo (from the Sertão region), indigenous and quilombola people; and the second is related to the development of biomimetic solutions focused on improving the living conditions of these groups, starting with local action. Within this second approach, family farming tools were redesigned, taking into account the methodological process of product design, using as references natural devices present in the fauna of the semi-arid and Zona da Mata regions in Northeastern Brazil. O referido artigo apresenta uma nova nomenclatura para estudos relacionados ao desenvolvimento de soluções bioinspiradas – a biomimética vernacular – que pode ter duas formas de atuação. A primeira consiste em identificar e registrar as soluções técnicas concebidas por grupos sociais que possuem contato direto com a natureza como o sertanejo, o indígena e o quilombola; e a segunda está relacionada ao desenvolvimento de soluções biomiméticas com foco na melhoria das condições de vida desses grupos, partindo para uma atuação local. Dentro desta segunda abordagem foi realizado o redesenho de ferramentas para agricultura familiar levando em consideração o processo metodológico do design de produto tomando como referências os dispositivos naturais presentes na fauna do Semiárido e Zona da Mata nordestina.

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    Authors: Farias, José Lucas Nunes de; Oliveira, Matteus Freitas de; Pereira, Jackson Belo;

    This work aimed to carry out a survey and classification about the uses and land cover in the territory of the fishing community of the São Pedro village in Jaramataia, Alagoas, using geoprocessing as a support. For this, the LANDSAT 8 image, scene 215/067, was used, which was processed using unsupervised and supervised algorithms using the Envi 5.3 software. For the unsupervised classification, the interpolation generated 7 classes that presented several data conflicts. For the supervised, eight classes were identified and characterized: steppe wooded savannas, secondary steppe savannas, seasonal wooded steppe, temporary crop or pasture, permanent crop, exposed soil, urban area and water bodies with emphasis on artisanal fishing. With that, it was observed that the area has a high degree of anthropization and the relevant patch of native vegetation is concentrated in the most accentuated elevation levels of the difficult to access relief. This study opens the possibility for the management of the territory based on the appropriation of information from the areas of use and coverage and the generation of public policies that promote local development based on sustainable actions. Este trabajo tuvo como objetivo llevar a cabo una encuesta y clasificación sobre los usos y la cobertura del suelo en el territorio de la comunidad pesquera de la aldea de São Pedro en Jaramataia, Alagoas, utilizando el geoprocesamiento como apoyo. Para esto, se utilizó la imagen LANDSAT 8, escena 215/067, que se procesó utilizando algoritmos supervisados y sin supervisión utilizando el software Envi 5.3. Para la clasificación no supervisada, la interpolación generó 7 clases que presentaron varios conflictos de datos. Para los supervisados, se identificaron y caracterizaron ocho clases: sabanas boscosas esteparias, sabanas esteparias secundarias, estepas boscosas estacionales, cultivos temporales o pasturas, cultivos permanentes, suelo expuesto, área urbana y cuerpos de agua con énfasis en la pesca artesanal. Con eso, se observó que el área tiene un alto grado de antropización y el parche relevante de vegetación nativa se concentra en los niveles de elevación más acentuados del relieve de difícil acceso. Este estudio abre la posibilidad de gestionar el territorio en función de la apropiación de información de las áreas de uso y cobertura y la generación de políticas públicas que promuevan el desarrollo local basado en acciones sostenibles. Este trabalho objetivou efetuar um levantamento e classificação sobre os usos e cobertura do solo no território da comunidade pesqueira do povoado São Pedro em Jaramataia, Alagoas, utilizando como suporte o geoprocessamento. Para isso utilizou-se a imagem LANDSAT 8, cena 215/067, que foi processada através de algoritmos não supervisionados e supervisionados usando o software Envi 5.3. Para a classificação não supervisionada a interpolação gerou 7 classes que apresentou vários conflitos de dados. Para a supervisionada foi identificada e caracterizada oito classes: savanas estépicas arborizadas, savanas estépicas secundárias, estepe estacional arborizada, lavoura temporária ou pastagem, lavoura permanente, solo exposto, área urbana e corpos d’água com destaque para a pesca artesanal. Com isso, observou-se que a área possui elevado grau de antropização e a mancha relevante de vegetação nativa se concentra nas cotas altimétricas mais acentuadas do relevo de difícil acesso. Esse estudo abre possibilidade para a gestão do território a partir da apropriação de informações das áreas de uso e cobertura e geração de políticas públicas que promovam o desenvolvimento local com base em ações sustentáveis.

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    Authors: Medeiros, Raimundo Mainar de; Saboya, Luciano Marcelo Falle; França, Manoel Vieira de; Holanda, Romildo Morant de; +2 Authors

    The objective is to characterize and analyze the anomalous rainfall between the municipalities of Alagoa Nova and Lagoa Seca, understanding the anomalous climate oscillations, with the probable influence and occurrence of El Niño and La Niña climate phenomena, in the citrus and horticulture sector, and the calculation of rainfall anomalies. We used the total annual rainfall for the period 1983-2019 for the municipalities of Lagoa Seca and Alagoa Nova - Paraíba and performed the classification according to the intensity of El Niño and La Niña phenomena, calculating their annual anomaly taking into account their respective averages. However, do not rule out that in most years with negative anomalies occurred so equal to La Niña and El Niño phenomena, the opposite can be registered for the case of El Niño that occurred negative anomalies and La Niña positive anomalies both of increased or reduced intensity. Therefore, it can not be said that ENSO has not influenced the local rainfall in the regions studied, and that ENSO is not the main climatic and/or environmental element contributing to the occurrence of extreme rainfall events. It is necessary to evaluate other climatic phenomena and the regional environmental profile in order to justify the rainfall variability. The influence of local factors on the spatial distribution of rainfall is evident in the El Nina and La Nina graphs, highlighted by the anomalies. The rainfall concentration is due to the favorable controlling factors, relief, approach to the Borborema plateau and the vegetation. The lower accumulations were caused by the cooling of the tropical Atlantic and the blockages in the local and regional systems. El objetivo es caracterizar y analizar la anomalía pluvial entre los municipios Alagoa Nova y Lagoa Seca comprendiendo las oscilaciones climáticas anómalas, con la probable influencia y ocurrencia de los fenómenos climáticos El Niño y La Niña, en el sector citrícola y hortícola, realizándose el cálculo de las anomalías pluviales. Se utilizaron las precipitaciones totales anuales del período 1983-2019 para los municipios de Lagoa Seca y Alagoa Nova - Paraíba y se realizó la clasificación según la intensidad de los fenómenos de El Niño y La Niña, calculando su anomalía anual teniendo en cuenta su respectiva media. Sin embargo, no hay que descartar que en la mayoría de los años con anomalías negativas se produzcan de la misma manera a los fenómenos de La Niña y El Niño, lo contrario se puede registrar para el caso de El Niño que se produjeron anomalías negativas y La Niña anomalías positivas ambas de mayor o menor intensidad. Por lo tanto, no se puede afirmar que el ENSO no haya influido en los índices pluviométricos locales de las regiones estudiadas, y que el ENSO no sea el principal elemento climático y/o ambiental que contribuye a la aparición de eventos pluviométricos extremos. Es necesario evaluar otros fenómenos climáticos y el perfil ambiental regional para justificar la variabilidad de las precipitaciones. La influencia de los factores locales en la distribución espacial de las precipitaciones es evidente en los gráficos de El Niño y La Niña, resaltados por las anomalías. La concentración de las precipitaciones se debe a los factores de control favorables, el relieve, la aproximación de la meseta de Borborema y la vegetación. Las menores acumulaciones fueron causadas por el enfriamiento del Atlántico tropical y los bloqueos en los sistemas locales y regionales. O objetivo é caracterizar e analisar a anomalia pluviometria entre os municípios Alagoa Nova e Lagoa Seca entendendo as oscilações anômalas climática, com a provável influência e ocorrência dos fenômenos climáticos El Niño e La Niña, no setor da citricultura e hortifrút, sendo realizado o cálculo das anomalias pluviais. Utilizou-se dos totais anuais pluviais do período de 1983-2019 para os municípios de Lagoa Seca e Alagoa Nova – Paraíba e realizou-se a classificação segundo a Intensidade dos fenômenos El Niño e La Niña, calculando sua anomalia anual levando em considerado as suas respectivas média. Todavia, não se descartar que na maioria dos anos com anomalias negativas ocorreram de forma igualadas à fenômenos La Niña e El Niño, o contrário pode ser registrado para o caso do El Niño que ocorreu anomalias negativa e na La Niña anomalias positivas ambos de intensidade aumentadas ou reduzidas. Portanto, nada se pode afirmar que nas regiões estudada os fenômenos ENOS não influenciaram nos seus índices pluviais locais, e que o ENOS não é o principal elemento climático e/ou ambiental os quais contribui para a ocorrência de eventos extremos pluviais. Sendo necessário buscar avaliar outros fenômenos climáticos e o perfil ambiental regional visando justificar a variabilidade pluvial. A influência dos fatores locais na distribuição espacial da chuva é evidente nos gráficos de El Nina e La Nina, destacados pelas anomalias. A concentração pluviométrica é devida aos fatores controladores favoráveis, relevo, aproximação do planalto da Borborema e a vegetação. Os acumulados mais baixos foram ocasionados pelo resfriamento do atlântico tropical e os bloqueios nos sistemas locais e regionais.

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    Authors: Souza, Igor Viana; Duarte, Victor Braga Rodrigues; Silva, Francisca de Cássia Silva da; Cardoso Silva, Marcos; +4 Authors

    O objetivo deste trabalho é descrever, através de revisão da literatura, o uso dos sensores remotos integrados aos Veículos Aéreos Não tripulados (VANT). Os tipos sensores e seu funcionamento também são apresentados além dos métodos de processamento e aplicações na silvicultura e na proteção contra incêndios florestais. O VANT foi utilizado inicialmente em atividades militares, principalmente para atender monitoramento de áreas de difícil acesso, consideradas inósptas para o ser humano. Com o desenvolvimento tecnológico dos veículos equipados com Sistema Globais de Navegação por Satélite (GNSS) e minituarização dos sensores possibilitaram a captação da energia eletromagnética refletida e transmitida pelos alvos na superfície, sendo posteriormente convertida em sinais elétricos de maneira que podem ser armazenadas ou transmitidas em tempo real. Os dados capturados pelos sensores são processados para serem utilizados no processo de aquisição de informações dos objetos observados na superfície terrestre para serem aplicados no gerenciamento dos recursos florestais. The objective of this work is to describe, through the literature review, or the use of remote sensors integrated to unmanned vehicles (UAV). The types of sensors and their operation are also described in addition to the processing methods and applications in forestry and protection against forest fires. The UAV was used for military activities, mainly for monitoring areas of difficult access, for human use. With the technological development of vehicles equipped with the Global Satellite Navigation System (GNSS) and minimization of sensors made possible to capture electromagnetic electrical energy reflected and transmitted by targets on the surface, being converted into traffic signals so that they can be stored or transmitted in real time. The data captured by the sensors are processed to be used in the process of using information from objects observed on the earth's surface to be used in the management of forest resources.

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    Authors: Anazawa, Tathiane Mayumi; Santos, Ana Carolina de Faria; Monteiro, Antonio Miguel Vieira; Amaral, Silvana;

    This study aims to identify the presence of population and human infrastructure in protected areas in the Metropolitan Region of Vale do Paraíba and Litoral Norte (RMVPLN). The study was supported by the use of a new base of statistical sapatial data from the Demographic Census and remote sensing data as nighttime light dataset, through an auxiliary representation to characterize the metropolitan space and its different territories. The analysis was constructed from Occupation Typologies based on the integration of population information, nighttime lights and protected areas, and the results showed a preliminary diagnosis of potential conflicts between local needs, as was the case analyzed at Campos do Jordão Park, site chosen for remote verification of Typologies. These areas need to be detailed and verified in the context of metropolitan planning to considered the regional heterogeneity and specificities of each territories that form the RMVPLN. O trabalho tem como objetivo identificar a presença de população e infraestruturas em áreas protegidas legalmente definidas, na Região Metropolitana do Vale do Paraíba e Litoral Norte (RMVPLN). O estudo foi apoiado no uso de novas bases de dados espaciais estatísticos provenientes do Censo Demográfico, e dados de sensoriamento remoto de luzes noturnas através de uma representação auxiliar para caracterizar o espaço metropolitano e seus diferentes territórios. A análise foi realizada a partir da construção de Tipologias de Ocupação, baseadas na integração de informações de população, luzes noturnas e áreas protegidas, cujos resultados possibilitaram um diagnóstico preliminar sobre potenciais conflitos entre necessidades locais, como foi o caso analisado no Parque Estadual de Campos do Jordão, local escolhido para a verificação remota das Tipologias. Estas áreas merecem detalhamento e verificação no âmbito do planejamento metropolitano, para que sejam consideradas a heterogeneidade regional e as especificidades dos diferentes territórios que formam a RMVPLN.

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    Authors: da Silva Lopes, Estefane; Emanuela Ribeiro Horta, Karla; Campos, Marcus André Siqueira;

    No período recente, as mudanças climáticas globais verificadas pelo aumento da temperatura decorrente de ações antrópicas é uma das principais problemáticas ambientais. Em se tratando do aumento de temperatura entre áreas urbanas e rurais, numa escala local ou regional, os estudos tendem a avaliar o fenômeno das ilhas de calor. Compreender a importância do estudo das ilhas de calor urbanas, suas principais investigações e ocorrências podem contribuir para análise do fenômeno nos países de urbanização tardia. Sendo assim, o objetivo deste trabalho foi investigar , por meio de uma análise cienciométrica, o estado da arte das pesquisas de ilha de calor entre os anos de 2000 a 2020. A partir das definições iniciais, obteve-se uma triagem de 169 artigos. Para esse universo foi avaliada toda a produção científica; incluindo país, ano, autores, instituições, palavras-chave, jornal (fator de impacto), clima, população e área geográfica. A metodologia empregada permite afirmar que o número de publicações relacionadas a ilhas de calor urbanas tem aumentado constantemente desde 2000. O país que mais se destacou foi a China, responsável por cerca de 40% do total dos artigos sobre ilhas de calor urbanas. Chinese Academy of Sciences e Nanjing University, foram as duas Universidades da China em que mais publicaram artigos sobre ilhas de calor urbanas. A modelagem continua sendo o principal método, e o uso de ferramentas de sensoriamento remoto vem cada vez mais tomando destaque. En el período reciente, el aumento de la temperatura global verificado por el período del cambio climático es uno de los principales cambios ambientales. Cuando se trata del aumento de la temperatura urbana entre áreas y áreas rurales, a escala local o regional, los estudios tienden a evaluar el fenómeno de la isla de calor. Comprender la importancia urbana del calor, sus principales industrias y la investigación puede contribuir al análisis del fenómeno en países con urbanización tardía. Para ello, se desarrolló una cienciometría sobre los estudios que se centraron en este análisis temático en el período de 2000 a 2020, cuya investigación resultó en 169 artículos. Toda la producción fue para este universo; incluyendo país, año, autores, instituciones, palabras clave, revista (factor de impacto), clima, población y área geográfica. La metodología utilizada permite afirmar que el número urbano de publicaciones relacionadas con las islas de calor urbanas ha aumentado constantemente en el año 2000. El país que más se destacó fue China, responsable de alrededor del 40% del número total de artículos sobre islas de calor. La Academia de Ciencias de China, la Universidad de Nanjing, fueron las dos universidades de China que publicaron la mayor cantidad de artículos sobre islas de calor urbanas. El modelado sigue siendo el método principal, y el uso de herramientas de teledetección se destaca cada vez más. In the recent period, increase in global temperature verified by the period of climate change is one of the main environmental changes. When it comes to the increase in urban temperature between areas and rural areas, on a local or regional scale, studies tend to assess the heat island phenomenon. Understanding the urban importance of heat, its main industries and research can contribute to the analysis of the phenomenon in countries with late urbanization. For, a scientometric was developed on the studies that focused on this thematic analysis in the period from 2000 to 2020, whose research resulted in 169 articles. The entire production went to this universe; including country, year, authors, institutions, keywords, journal (impact factor), climate, population and geographic area. The methodology used allows us to state that the urban number of publications related to urban heat islands has increased constantly in 2000. The country that stood out the most was China, responsible for about 40% of the total number of articles on heat islands. Chinese Academy of Sciences, Nanjing University, were the two universities in China that published the most articles on urban heat islands. Modeling remains the main method, and the use of remote sensing tools is increasingly highlighted.

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    Authors: Marques, Frank Borges; Freitas, Vérica; Paula, Veronica Angelica Freitas de;

    RESUMO Este estudo analisa implicações da digitalização e o surgimento dos Bancos Digitais no Brasil. Para tanto, descreve a evolução dos canais de atendimento (2011-2018) e a regulamentação relacionada (2013-2019), bem como analisa implicações causadas ao mercado e as interações dos clientes do Nubank®. Este artigo utiliza abordagem qualitativa, com etapas descritiva e exploratória, dados secundários e análise documental. Como resultados, o estudo apontou: iniciativas de investimento em digitalização da relação com clientes; ampliação do uso de estratégias de comunicação dos Bancos Digitais pelos Bancos Tradicionais; 16 normativos do Banco Central Brasileiro sobre o tema; e que a maioria dos clientes Nubank® atua como promotores da marca. ABSTRACT This study analyzes the implications of digitalization and the emergence of Digital Banks in Brazil. Therefore, it describes the evolution of service channels (2011-2018) and related regulations (2013-2019). It analyzes implications caused to the market and Nubank® customer interactions. It uses a qualitative approach, descriptive and exploratory steps, secondary data and document analysis. As a result, the study pointed out: investment initiatives in the digitalization of customer relations; expansion of the use of communication strategies of Digital Banks by Traditional Banks; 16 regulations issued by the Brazilian Central Bank on the subject; and that the majority of Nubank® customers act as brand promoters.

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