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Profile
I'm an electronic engineer from Brazil passionate about technology, free software, open standards and knowledge sharing. I love traveling, meeting new people and learning about their cultures as well. For on-line conversation, I care about my privacy and the one who is talking with me. On these web pages bellow you can find some of the reasons why I prefer not using Skype, Hangout, Facebook, Whatsapp or anything that doesn't respect our privacy. Please, don't fool yourself, these services are not free. We pay dearly when we give up our privacy and allow them to spy on our daily habits. https://stallman.org/skype.html https://www.trustwave.com/Resources/SpiderLabs-Blog/A-Backdoor-in-Skype-for-Mac-OS-X/?page=1&year=0&month=0 https://thetinhat.com/blog/2015/02/10/reasons-against-using-skype-surveillance.html http://www.theguardian.com/commentisfree/2012/jul/27/skype-encyption-methods-police-access http://akademie.dw.de/digitalsafety/what-are-the-risks-of-using-skype-facebook-whatsapp-and-co/ http://www.computerworld.com/article/2543670/networking/how-dangerous-is-skype-.html https://www.comparitech.com/blog/information-security/is-skype-safe-and-secure-what-are-the-alternatives/ Because some of those reasons, I'd rather use other alternatives like: Jitsi Meet - https://meet.jit.si/ - You just need using a web browser that supports WebRTC, like Firefox or Google Chrome. Jitsi - https://jitsi.org/ - All the information here: https://securityinabox.org/en/guide/jitsi/windows/ Or any other alternative that doesn't spy our lives, just tells me which you prefer. Don't worry if you don't know any of them, I'll be happy to guide you how to use it. ATTENTION: Please, if you don't want to use an application other than Skype, I totally understand and respect your choice. But, please, you don't need to block me. As you can see from my twitter account @mgsantana, I'm not some kind of crazy or sexually oriented maniac looking for relationships or some things like that.
Learning
English
Language Skills
PortugueseNative
Lesson Feedback
Lesson history
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Completed lessons002
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Teacher reviews
Shannon
English
Jun 28, 2017
Another interesting conversation! I always enjoy hearing Marcelo's thoughts and opinions.
Shannon
English
Jun 20, 2017
It was wonderful meeting Marcelo. Very intelligent, good communication skills, and goal-oriented. I hope we speak again soon!
Activities
  • Posted
    How to say "interior do estado" in English Hey folks, does anyone know how I could say "interior do estado" in English? I've seen some non-native saying "countryside" but it doesn't have the same meaning in English. By chance, has any native seen this expression in Portuguese? It's such a countryside city but not calm that way, I mean like a big city but far away from the cost. Examples: Campinas/SP, Uberlândia/MG, Joinville/SC. I'd be glad for any help. 😊🙏🏼🙌🏼
    July 2, 2019
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  • Posted
    What is my job Although my background is Electronic Engineering, I'm a public employee and I work as an instrument technician at a research institution from Brazil which actuates in the nuclear physics field. My job is to maintain electronic equipment and measuring instruments which are used in the daily research laboratories routines. I'm also responsible for the maintenance of a cluster computer, used for doing simulation in the numeric computing field. More specifically speaking, we use computer software based on Monte Carlo methods, like MCNP and Geant4, to simulate many situations where we would have the presence of radionuclides, either directly or indirectly. I'm currently doing a corrective maintenance of an X-ray equipment. It has been a big challenge because it's difficult to analyze faults in equipment whose the manufacturer doesn't provide a detailed service manual. I think it will take at least two weeks for figuring out what is the root of the problem.
    July 3, 2017
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  • Corrected

    O Meu Verão

    Só quero escrever sobre como eu me sinto agora. Me sinto abençoado porque tenho um estágio ótimo em Nova Iorque, mas tenho um problema. Tenho que morar com as pessoas que são bem diferentes de mim, na maneira em que eles como elas se comportam do que eu. Sempre trazem amigos que não conheço, falam alto demais e são machistas. A gente não combina. Se eu vivesse sozinho, acho que eu seria mas feliz. Não sei. Só expressando meus sentimentos. Além disso, contudo, eu estou contente com meu verão até agora. Ontem comprei comida brasileira num supermercado brasileiro. Minha meta é falar português só com o povo desse bairro. Eu penso (ou acho/acredito/creio) que posso fazê-la (ou realizá-la)!

    Muito bem TJ, sua fluência está muito boa, continue assim!

    0 voted
    June 13, 2017
    1
  • Commented

    Hi Jessica. I'm participating in the next Add1Challenge[1] that will start on June 5th. If you are interested in participating in English/Portuguese language exchange, please let me know. It would be great for us to help each other in the next 90-day language learning challenge!

    [1]http://add1challenge.com/


    0 voted
    June 2, 2017
    0
  • Corrected
    0 voted
    June 1, 2017
    0
  • Corrected

    Eleição no Reino Unido

    Aqui no Reino Unido, nós teremos uma eleição na semana que vem. A votação vai acontecer na quinta-feira e vai decidir qual partido formará o novo governo.

    As pessoas aqui estão um pouco cansadas da política depois de uma eleição há apenas dois anos atrás, em 2015, e do referendo de Brexit no ano passado. Mas essa corrida é muito importante porque vai determinar a futura direção do país em um momento crítico.

    Há vários partidos aqui mas, por causa do nosso sistema eleitoral, a disputa será entre as duas maiores forças políticas do país.

    De um lado, há The Conservatives (Os Conservadores), o partido de direita e do governo atual. Sua líder é a primeira ministra, Theresa May.

    O outro partido é o Labour (Trabalhista), que tradicionalmente representa a esquerda. O líder do partido, Jeremy Corbyn, é um figura polêmica por causa de suas posições em relação a coisas como armas nucleares.

    Quando a eleição foi convocada, era previsto que os Conservadores venceriam facilmente e com uma grande maioria. No entanto, desde o início da campanha eleitoral, as chances do Labour parecem estar crescendo. Apesar de muita crítica da imprensa, Corbyn tem grande popularidade entre os jovens. Mas entre outros grupos, existe um senso forte de que Corbyn não é um líder confiável.

    Porém, ninguém realmente sabe o que vai acontecer. Esta eleição é imprevisível e ainda há uma semana até a votação. ...
    0 voted
    June 1, 2017
    2
  • Posted
    Join me on the next #Add1challenge for an English/Portuguese language exchange I'm participating in the next #Add1challenge that will start on June 5th. If you are interested of English/Portuguese language exchange please let me know. It would be great to help each other in the next 90-day language learning challenge!
    June 1, 2017
    7
    0
  • Answered
    I hope this web page help you understand better: https://www.duolingo.com/comment/745813
    0 voted
    March 4, 2017
    0
  • Commented
    Olá Anna, imagino perfeitamente como deve ser difícil, inclusive devido aos aspectos culturais tão diferentes. Se quiser, terei todo o prazer em te ajudar.
    0 voted
    March 4, 2017
    0
  • Corrected
    0 voted
    March 4, 2017
    0