Search

Your search keyword '"Rodrigues, Sérgio"' showing total 1,002 results
Start Over Author "Rodrigues, Sérgio"
1,002 results on '"Rodrigues, Sérgio"'

51. Feedback boundary stabilization to trajectories for 3D Navier-Stokes equations

Author

Rodrigues, Sérgio S.

Subjects
Mathematics - Optimization and Control
Abstract

Given a nonstationary trajectory of the Navier-Stokes system, a finite-dimensional feedback boundary controller stabilizing locally the system to the given trajectory is derived. Moreover the controller is supported in a given open subset of the boundary of the domain containing the fluid. In a first step a controller is derived that stabilizes the linear Oseen-Stokes system "around the given trajectory" to zero; for that a corollary of a suitable truncated boundary observability inequality, the regularizing property for the system, and some standard techniques of the optimal control theory are used. Then it is shown that the same controller also stabilizes, locally, the Navier-Stokes system to the given trajectory.

Published
2015

52. Molecular School – a pre-university chemistry school

Author

Nogueira Bernardo A., Silva Alexandre D., Mendes Maria Inês P., Pontinha Ana Dora R., Serpa Carlos, Calvete Mário J. F., Rocha-Gonçalves Alexandra, Caridade Pedro J. B. S., and Rodrigues Sérgio P. J.

Subjects
hands-on learning, laboratory instruction, secondary school, student-centered learning, Chemistry, QD1-999
Abstract

The planning, implementation and results of the first edition of the Molecular School are presented, as the first pre-university school project held in Portugal. This is not, however, a strictly Portuguese project, since it can be replicated in other countries at the secondary school level, with minor adjustments. Herein, the pilot edition of Molecular School is detailed and discussed, where 36 secondary school students have participated. The plan for the second edition, to be held in the first semester of 2021, with the confirmed participation of around 100 students, is further presented. Briefly, the project is divided in two modules: theoretical and laboratory work. These were prepared in a complementary way and performed to achieve the same purpose: deliver a wider vision of what chemistry really is. Hence, the classes were designed having in mind the applications that chemistry has in our everyday life, in the different academic research fields and in industry. A better preparation and training at the laboratory level was also a goal of this project. The enthusiasm, happiness and the motivation shown by the students, and their eagerness to participate in the future editions of the Molecular School, were clear signs of this project success.

Published
2021
Full Text
View/download PDF

55. COMPARAÇÃO DE DOIS CRITÉRIOS DE ACOMPANHAMENTO DO CRESCIMENTO DA ATIVIDADE AGROPECUÁRIA NAS REGIÕES DO ESTADO E SÃO PAULO EM MOMENTOS DISTINTOS.

Author

André de Oliveira, Paulo, Augusto Rodrigues, Sérgio, Roberto Padovani, Carlos, Rodrigues Sarnighausen, Valéria Cristina, and de Nardi Junior, Geraldo

Subjects
AGRICULTURAL productivity, OFFICES, RURAL development, GOVERNMENT policy, AGRICULTURE
Abstract

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
Full Text
View/download PDF

56. Sexual health and access to services for lesbian women in Manaus, Brazil.

Author

de Azevedo, Gabriela Rith Beltrão, Therense, Munique, Rodrigues, Sérgio Antônio Saldanha, de Leão Almeida, Gabriel Ponce, and Neves, André Luiz Machado das

Subjects
LESBIANISM, LESBIANS, HUMAN sexuality, SEXUAL health, WOMEN'S health services, WOMEN'S programs, SEXUAL minorities, SEXUALLY transmitted diseases, MEDICAL care, MINORITY stress, WOMEN'S health
Abstract

This study aims to understand the meanings related to sexual health and the delineations that define the experience of accessing health services for lesbian women in Manaus, Brazil. This study followed a qualitative approach, counting on the participation of ten women who self-reported themselves as lesbians. Semi-structured interviews were carried out and their analyses occurred through three thematic axes. The first addressed the representations concerning prevention and sexual practices, highlighting the notion of fidelity in the relationship as a "protective factor". Difficulties in the use of condoms in relationships between two women were reported. The second discussed heteronormativity and its effects on self-care, reporting the participants' difficulties in being understood and welcomed by health services. The third addressed the search for one's own knowledge as a care tactic, highlighting the importance of information and autonomy for health promotion and prevention of Sexually Transmitted Infections (STIs). It can therefore be concluded that there is a need for public policies aimed at promoting the sexual health of lesbian women and the recognition of their specificities by health services. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

61. Effects of Using a Cell Phone on Gaze Movements During Simulated Car Driving: Hand-Held and Hands-Free Conditions

Author

Carizio, Bethânya Graick, Gotardi, Gisele Chiozi, de Ângelo, Juliana Cristina, Polastri, Paula Fávaro, Barbieri, Fábio Augusto, Paschoarelli, Luis Carlos, Rodrigues, Sérgio Tosi, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Advisory editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, and Stanton, Neville A, editor

Published
2018
Full Text
View/download PDF

67. Internal exponential stabilization to a non-stationary solution for 3D Navier-Stokes equations

Author

Barbu, Viorel, Rodrigues, Sergio S., and Shirikyan, Armen

Subjects
Mathematics - Optimization and Control, Mathematics - Analysis of PDEs
Abstract

We consider the Navier-Stokes system in a bounded domain with a smooth boundary. Given a sufficiently regular time-dependent global solution, we construct a finite-dimensional feedback control that is supported by a given open set and stabilizes the linearized equation. The proof of this fact is based on a truncated observability inequality, the regularizing property for the linearized equation, and some standard techniques of the optimal control theory. We then show that the control constructed for the linear problem stabilizes locally also the full Navier-Stokes system., Comment: 25 pages

Published
2010

74. A ocupação paleolítica da margem esquerda do Baixo Minho: a indústria lítica do sítio de Pedreiras 2 (Monção, Portugal) e a sua integração no contexto regional

Author

Ferreira, Carlos, primary, Cunha-Ribeiro, João Pedro, additional, Monteiro-Rodrigues, Sérgio, additional, Méndez‑Quintas, Eduardo, additional, Xavier, Pedro, additional, Meireles, José, additional, Gomes, Alberto, additional, Santonja, Manuel, additional, and Pérez‑González, Alfredo, additional

Published
2020
Full Text
View/download PDF

78. Navier-Stokes Equation on the Rectangle

Author

Rodrigues, Sérgio

Subjects
Mathematics - Optimization and Control
Abstract

We study controllability issues for the Navier-Stokes Equation on a two dimensional rectangle with so-called Lions boundary conditions. Rewriting the Equation using a basis of harmonic functions we arrive to an infinite-dimensional system of ODEs. Methods of Geometric/Lie Algebraic Control Theory are used to prove controllability by means of low modes forcing of finite-dimensional Galerkin approximations of that system. Proving the continuity of the ``control $\mapsto$ solution'' map in the so-called relaxation metric we use it to prove both solid controllability on observed component and $\mathbf L^2$-approximate controllability of the Equation (full system) by low modes forcing.

Published
2005

87. Gestão e Eficiência

Author

Prado, Alvaro, primary, Souza, Aguinaldo Eduardo de, additional, Raymundo, Julio Cesar, additional, Guimarães Neto, Abelino Reis, additional, Rosa, Adriano Carlos Moraes, additional, Correa, Fulvia Carolina Alves, additional, Mantovani, Katia Cristina Cota, additional, Chimendes, Vanessa Cristhina Gatto, additional, Miranda, Yara Cristina Costa Rocha, additional, Jesus, Alan Amorim de, additional, Holanda, Rita de Cassia Costa da Silva, additional, Freitas Junior, Moacir de, additional, Destefani, Renan Santos, additional, Araújo, Edilson Silva, additional, Sigrist, Vanina Carrara, additional, Ramos, Natália Marcelino, additional, Nogueira, Maurício Faria, additional, Rios, Antônio Wellington Sales, additional, Freires, Lucas Santana, additional, Terra, Jessica Maki Hirakawa, additional, Lopes, Maick Roberto, additional, Venturineli, Ricardo, additional, Passos, Júlio Cesar Ferreira dos, additional, Cruz, Maria Juliana Góes Coelho da, additional, Picarelli, Simone Seixas, additional, Silva, Isis Emanuelle Correia da, additional, Silva, Juliane dos Santos da, additional, Santos, Natan Gabriel de Paula, additional, Santos, Viviane Freire dos, additional, Silva, Pietra Monteiro de Oliveira, additional, Santos, Anderson Marques dos, additional, Costa, Luciano Gonçalves, additional, Mota, Isabel Cristina, additional, Silva, Cristiane da, additional, Silva, Luciano Geraldo da, additional, Santana, Peri da Silva, additional, Oliveira, Paulo André de, additional, Souza, Valquíria Ribeiro de, additional, Rodrigues, Sérgio Augusto, additional, Cervi, Ricardo Ghantous, additional, Cabrera, Roberta de Oliveira, additional, Ribeiro, Ieda, additional, Azevedo, Marília Macorin de, additional, Galegale, Napoleão Verardi, additional, Neves, José Manoel Souza das, additional, Feitosa, Marcelo Duduchi, additional, Mangini, Clayton Gerber, additional, Doná, Claudio Melin, additional, Cruz, Julio Cesar Aparecido da, additional, Croce, Wagner Delmo Abreu, additional, Alves, Wadna Kimberlly da Silva, additional, Nogueira, Henrique Menezes, additional, Venâncio, Geisy Anny, additional, Faria, Matheus Augusto de Lima, additional, Zangrandi, Maycon Douglas do Nascimento, additional, Costa, Deivid Márlon Fernandes da, additional, Monteiro Júnior, Vitor Luíz, additional, Hassmann, Sanzara Nhiaia Jardim Costa, additional, José, Lucas de Figueiredo, additional, Kusplica, Paulo Victor Homem de Mello, additional, Santos, Cristiane Marisa dos, additional, Oliveira, Alexandre Garcia de, additional, Pinto, Patrícia Gonçalves, additional, Duarte, Sara Silva, additional, Assis, Vinicius Carvalho Fernandes, additional, Luz, Lucineide Bispo dos Reis, additional, Sato, Erik Massahiro, additional, Torres, Fernando Mendes, additional, Tozi, Luiz Antônio, additional, Santos, Reinaldo Fagundes dos, additional, Freitas, Maristela de, additional, Muñoz, Rafael Rolando Mitteenn, additional, Mizani, Thais Masague, additional, Vido, Keli Cristiane, additional, Mesquita, Mariana Martins de, additional, Rocha, Vanusa Marisa Carvalho Magalhães, additional, Silva, Jamile Brandão, additional, and Evangelista, Armindo Aparecido, additional

Published
2019
Full Text
View/download PDF

92. Host plants and antennal sensilla of Anomala testaceipennis Blanchard (Coleoptera: Scarabaeidae: Rutelinae)

Author

Souza, Ana Caroline, Fuhrmann, Juares, Rodrigues, Sérgio Roberto, Souza, Ana Caroline, Fuhrmann, Juares, and Rodrigues, Sérgio Roberto

Abstract

This study was conducted at the Universidade Estadual de Mato Grosso do Sul, Cassilândia, Brazil from September 2017 to December 2021 in a Brazilian Cerrado. Adults of Anomala testaceipennis Blanchard were collected associated with host plants and taken to the laboratory for studies. Some phytophagous scarab beetles found host plants through detection of plant volatiles. The detection of those odorants is intermediated by antennal sensilla. The main goals of the present study are to describe the antennal sensilla of A. testaceipennis and check the host plants used as food resource. This specie was found feeding on flowers of: Anadenanthera colubrina var. cebil (Fabaceae), Azadirachta indica (Meliaceae), Buchenavia sp. (Combretaceae), Cordia glabrata (Boraginaceae), Inga edulis (Fabaceae), Moquilea tomentosa (Chrysobalanaceae), Paubrasilia echinata (Fabaceae), Tabernaemontana catharinensis (Apocynaceae), Tapirira guianensis (Anacardiaceae), Xylophragma pratense (Bignoniaceae). To the sensilla study, antennae were dissected and images of the sensilla were obtained using a scanning electron microscope. Antennae of A. testaceipennis have sensilla chaetica, trichodea, placodea (type I, II, and III), coeloconica (type I and II), basiconica (type I), and ampullacea (or pore). Males have a total of about 6,243 sensilla of which 5,868 (93.99%) are sensilla placodea, 370 (5.93%) are sensilla coeloconica, and 5 (0.08%) are sensilla basiconica. Females have a total of about 5,119 sensilla of which 4,820 (94.16%) are sensilla placodea, 270 (5.27%) are sensilla coeloconica, and 29 (0.57%) are sensilla basiconica.

Published
2023

95. THE CURRICULUMS OF THE FIRST CHEMISTRY COURSES AT UNIVERSITY OF COIMBRA AND BRAZILIAN UNIVERSITIES

Author

Fonseca, Vanessa F., Rodrigues, Sérgio P. J., and Pazinato, Maurícius S.

Subjects
Federal University of Rio Grande do Sul, History of Chemistry Education, University of Coimbra, Federal University of Rio de Janeiro, curriculum
Abstract

The study of History of Education is very important to teacher education because it allows reflections and greater criticality about their own teaching practice and professional condition. The purpose of this research was to identify similarities between the curriculum of Chemistry courses of University of Coimbra (UC), National School of Chemistry (ENQ) and School of Engineering of Porto Alegre (EEPA) at the beginning of the 20th century seeking to identify possible influences of UC in the structuring and curriculum of the first Brazilian higher education Chemistry courses. The results showed more similarities regarding the structure between UC and ENQ, while there were greater correspondences in the curricular activities between UC and EEPA. Finally, it was not possible to identify confluences in the curriculums of the courses over the decades since there was a divergence between the models of organization of the higher education in the countries under study.

Published
2023

Catalog

Books, media, physical & digital resources
See catalog results