Results 21 to 30 of about 38,239 (258)

Redes sociais, redes de sociabilidade [PDF]

Revista Brasileira de Ciências Sociais, 2014
A forma da sociabilidade que emerge nas redes sociais da internet encontra abrigo em uma web cuja utilizacao vem deixando de ser prioritariamente instrumental para se tornar fundamentalmente relacional. O Facebook reune um conjunto de tecnologias e praticas exemplar dessa transicao para a chamada web social.
Santos, Francisco Coelho dos, Cypriano, Cristina Petersen   +1 more
openaire   +3 more sources

Polarização, Hiperpartidarismo e Câmaras de Eco: Como circula a Desinformação sobre Covid-19 no Twitter

Revista Contracampo, 2021
Neste artigo, analisamos a circulação de links desinformativos sobre a pandemia de Covid-19 no Twitter, a partir de um conjunto de 159.560 links coletados da API do Twitter entre os meses de março e julho de 2020.
Raquel Recuero, Felipe Soares, Gabriela Zago   +2 more
doaj   +1 more source

REDES INTERNACIONAIS DE COOPERAÇÃO: de redes burocráticas a redes recíprocas

Interfaces Científicas - Humanas e Sociais, 2019
A cooperação internacional, enquanto sistema formalizado de relações entre países, está inserida num sistema burocrático ineficiente, mediado por lógicas de racionalidade instrumental. Contudo, as redes assim constituídas beneficiam de princípios como reciprocidade, solidariedade e confiança que tendem a transformar relações institucionais protocoladas
Cardoso, Antônio Dimas, Grave, Marta Ribeiro, Ribeiro, Maria João Alves   +2 more
openaire   +3 more sources

Vigilancia por el laboratorio de la tuberculosis resistente en menores de 15 años, Colombia, 2010 a 2015

Biomédica: revista del Instituto Nacional de Salud, 2019
Introducción. La tuberculosis en los niños es un reflejo de transmisión reciente en la comunidad. Se estima que en el mundo cada año un millón de niños enferma por esta causa; en Colombia se notificaron 291 casos en el 2015. Objetivo.
Angie Paola Zabaleta, Claudia Llerena, Angélica Valbuena   +2 more
doaj   +1 more source

Direction-of-Arrival (DOA) Estimation Based on Real Field Measurements and Modified Linear Regression

Engineering Proceedings
This study applied modified linear regression in machine learning (ML) to predict the direction of arrival (DoA) in cellular networks using field measurements and radiofrequency parameters. Models were developed from base station data, with preprocessing
Luis Antonio Flores, Ismael Lomas, Lenin Guachalá, Pablo Lupera-Morillo, Robin Álvarez, Ricardo Llugsi   +5 more
doaj   +1 more source

Comparison of methodologies for microscopic malaria diagnosis

Biomédica: revista del Instituto Nacional de Salud, 2018
Introduction: As part of the pre-elimination plan for malaria in Colombia, it has been proposed to develop activities within the line of work: “Improve access and quality of malaria diagnosis”.
Liliana Jazmín Cortés, Lyda Muñoz, Martha Stella Ayala   +2 more
doaj   +1 more source

Communication System Comparison of IoT Applications Using Custom-Designed Antennas: A Basic Experimental Study

Engineering Proceedings
A comparative study of the performance of a communication system for IoT applications is presented. The experiment is based on the bit error rate, which is obtained by varying the distance between two transceiver modules, each attached to a ...
Marco Vinueza Bustamante, Jordan Guillén Arteaga, Carlos Yépez Vera, Aldrin Reyes Narváez, Hernan Barba Molina   +4 more
doaj   +1 more source

Innovación, equidad y desarrollo latinoamericano

Isegoría, 2013
La innovación está hoy en el centro de las políticas que los países de América Latina aplican para impulsar el desarrollo y la equidad. En este trabajo se afirma que hubo una traslación mimética de políticas e instrumentos creados en economías en las que
Mario Albornoz
doaj   +1 more source

Performance Analysis of DCO-OFDM in IEEE 802.11bb VLC PHY Modes: Impact of Biasing Techniques and Optical Channel Dispersion

Engineering Proceedings
This paper presents a performance analysis of Direct Current-biased Optical OFDM (DCO-OFDM) under the IEEE 802.11bb standard for Visible Light Communication (VLC).
Nelson Jaque Intriago, Alex Cueva Ayala, Christian Aguirre Navas, Wilson Taipe Chicaiza, Martha Cecilia Paredes-Paredes   +4 more
doaj   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source