<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><br><div><p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Prezados colegas,</span><span style="font-size:12pt"><br>
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<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">O <b>COLMEA - Colóquio Interinstitucional Modelos Estocásticos e
Aplicações </b>- tem mais um encontro no próximo dia 25 de
outubro de 2023, a partir das 14:00h, no <b>Instituto de Física da UFF</b>. Nesta ocasião teremos palestras de Alexis Nuñez
(UFRJ)  e Taiane Ramos (UFF).</span><br>
<br>
<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Programa:</span><br>
</b><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">14:00 h - 15:20h  Alexis Hernández Nuñez
(UFRJ)</span><br>
<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Modelling how social network algorithms can
influence opinion polarization</span></b><br>
<br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">15:40h - 17:00h   Taiane Coelho Ramos (UFF)</span><br>
<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">O que é neurociência computacional?</span></b><br>
<br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">17:00h Discussão e lanche</span><br>
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<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Local:</span></b><br>
<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Instituto de Física - UFF</span></b><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Sala de Seminários 201, Torre Velha</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">UFF Campus Praia Vermelha</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Av. Gal. Milton Tavares de Souza, s/n</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Niterói, RJ, Brasil</span><br>
<br>
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<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Informações mais completas sobre o COLMEA podem
ser encontradas aqui:</span><br>
</span><span style="font-size:12pt;color:black"><a href="http://www.im.ufrj.br/~coloquiomea/" style="color:blue" target="_blank"><span style="color:rgb(17,85,204);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">http://www.im.ufrj.br/~coloquiomea/</span></a></span><span style="font-size:12pt"><br>
<br>
<br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Todos são muito bem-vindos. Agradecemos também
pela divulgação em suas instituições. Resumos das palestras no final da
mensagem.</span><br>
<br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Atenciosamente,</span><br>
<br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">O comitê organizador:</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Americo Cunha (UERJ)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Evaldo M.F. Curado (CBPF)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">João Batista M. Pereira (UFRJ)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Leandro P. R. Pimentel (UFRJ)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Maria Eulalia Vares (UFRJ)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Nuno Crokidakis (UFF)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Roberto I. Oliveira (IMPA)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Simon Griffiths (PUC-Rio)</span><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Yuri F. Saporito (FGV-EMAp)</span></span></p>

<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> </span></p>

<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;color:black"> </span></p>

<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:12pt;color:black">Modelling how social network algorithms can influence
opinion polarization</span></b><span lang="EN-US" style="font-size:12pt;color:black"> <br>
Alexis Hernández Nuñez (IF - UFRJ) <br>
<br>
The study of opinion dynamics in online social networks has garnered
considerable attention in recent years. Numerous researchers have proposed
models to simulate the communication process that mediates these dynamics. Such
models consider users and their friendship relations as nodes and edges in a
network, where the communication process takes place. Here, we present a model
that considers not only the dynamic resulting from individuals’ behaviors but
also the influence of the social network algorithm. The proposed model
simulates communication in an online social network, in which randomly created
posts represent external information. Users and friendship relations are
encoded as nodes and edges of a network. The dynamic of information diffusion
is divided into two processes, referred to as "post transmission" and
"post distribution", representing the users’ behavior and the social
network algorithm, respectively. Individuals also interact with the post
content by slightly adjusting their own opinions and sometimes redefining
friendships. Our results show that the dynamic converges to various scenarios,
which go from consensus formation to polarization. Importantly, friendship
rewiring helps promote echo chamber formation, which can also arise for particular
networks with well-defined community structures. Altogether, our results
indicate that the social network algorithm is crucial to mitigate or promote
polarization.</span><span lang="EN-US" style="font-size:12pt"></span></p>

<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:12pt"> </span></p>

<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><b><span style="font-size:12pt;color:black">O que é neurociência computacional?</span></b><span style="font-size:12pt;color:black"><br>
Taiane Coelho Ramos (IC - UFF)<br>
<br>
A neurociência computacional é uma área em desenvolvimento e tem contribuído
com os avanços das pesquisas em saúde. Técnicas computacionais nos possibilitam
entender o funcionamento do cérebro, procurar por biomarcadores para doenças
mentais e elaborar sistemas de auxílio ao diagnóstico que sirvam de suporte à
prática clínica. Neste seminário vamos introduzir alguns conceitos fundamentais
do funcionamento e anatomia cerebral, principais técnicas de coleta de dados
anatômicos e funcionais do cérebro humano e técnicas computacionais para
análise desses dados.</span><span style="font-size:12pt"></span></p></div><br></div><div id="m_611989196642400705m_7266881751348554825DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br><a href="#m_611989196642400705_m_7266881751348554825_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"></a></div>
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