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Institution

Federal University of Roraima

Education
About: Federal University of Roraima is a based out in . It is known for research contribution in the topics: Population & Thermogravimetry. The organization has 981 authors who have published 1218 publications receiving 7849 citations. The organization is also known as: Federal University of Roraima.


Papers
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Journal ArticleDOI
TL;DR: In this article, the authors characterize the lithofacies petrography palynofacies and constrains the paleoenvironmental interpretation of the Pirara Formation, showing that it represents a playa lake environment that evolved in the Southern Caribbean region in the Late Jurassic-Early Cretaceous during the opening of the Central Atlantic Ocean.

1 citations

Journal ArticleDOI
TL;DR: The nearest-neighbor-interaction spin-1 Ising model is investigated within the damage-spreading approach, and precise estimates of their associated critical exponents and of the critical temperature of the model are obtained, in spite of the small lattice sizes considered.
Abstract: The nearest-neighbor-interaction spin-1 Ising model is investigated within the damage-spreading approach. Exact relations involving quantities computable through damage-spreading simulations and thermodynamic properties are derived for such a model, defined in terms of a very general Hamiltonian that covers several spin-1 models of interest in the literature. Such relations presuppose translational invariance and hold for any ergodic dynamical procedure, leading to an efficient tool for obtaining thermodynamic properties. The implementation of the method is illustrated through damage-spreading simulations for the ferromagnetic spin-1 Ising model on a square lattice. The two-spin correlation function and the magnetization are obtained, with precise estimates of their associated critical exponents and of the critical temperature of the model, in spite of the small lattice sizes considered. These results are in good agreement with the universality hypothesis, with critical exponents in the same universality class of the spin- 12 Ising model. The advantage of the present method is shown through a significant reduction of finite-size effects by comparing its results with those obtained from standard Monte Carlo simulations.

1 citations

Journal ArticleDOI
TL;DR: In this paper, a trajetoria historica de implantacao da educacao especial no territorio federal de Roraima em sua genese, em meados de 1970 ate 1990, is presented.
Abstract: Este texto apresenta aspectos da trajetoria historica de implantacao da educacao especial no territorio federal de Roraima em sua genese, em meados de 1970 ate 1990. Fundamentado nos pressupostos do materialismo historico-dialetico, adota como eixo central a perspectiva desenvolvida por E. P. Thompson de uma analise historica que tome por referencia a experiencia dos sujeitos, uma "historia vista de baixo". Apoia-se em entrevistas com professores e tecnicos atuantes na area, bem como na analise de documentos produzidos no cotidiano das instituicoes. Evidencia como Roraima, assumida como area de seguranca nacional, sob a tutela das Forcas Armadas, sem acoes colocadas em pratica anteriormente, foi campo de aplicacao das politicas e propostas prioritarias da reforma educacional projetada pelo regime militar em âmbito nacional, mantidos todos os servicos sob financiamento e gerenciamento do poder publico, sem a presenca de instituicoes nao governamentais, beneficentes ou filantropicas.

1 citations

Journal ArticleDOI
TL;DR: In this article, two instituicoes publicas federais voltadas a educacao: o Instituto Federal de Roraima (IFRR) and a Universidade Federal de RIRA (UFRR).
Abstract: No Brasil a Lei no 12527/2011, conhecida como acesso a informacao (LAI) vem evoluindo no cumprindo de suas obrigacoes, onde o acesso passa a ser visto como regra e o sigilo excecao Contudo, no extremo norte do pais, especificamente no Estado de Roraima e possivel observar que um percurso ainda tem de ser trilhado para a implantacao total da Lei Com o intuito de darmos os primeiros passos na busca por respostas sobre o andamento da implantacao da LAI em Roraima, selecionamos duas instituicoes publicas federais voltadas a educacao: o Instituto Federal de Roraima (IFRR) e a Universidade Federal de Roraima (UFRR), onde objetivamos averiguar a atual situacao da transparencia ativa, contemplada nos Artigos 7o e 8o do Decreto no 7724/2012 que regulamenta a LAI Buscamos assim, apresentar os progressos e dificuldades destas duas instituicoes na implantacao da LAI

1 citations

Book ChapterDOI
01 Jan 2020
TL;DR: The thread lift technique was first described in the late 1990s and has been improved as discussed by the authors, and it has been used for many years to correct facial ptosis, which has been corrected through facial surgery called face lift.
Abstract: Background: The aging process produces facial ptosis, which for many years has been corrected through facial surgery called face lift. Nowadays, to meet the demands of the patient, so-called thread lifts are used. The technique was first described in the late 1990s and has been improved. There are several materials available.

1 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20232
20222
2021125
2020183
201992
201899