Roraima


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Roraima

(ro͝orī`mə), state (1996 pop. 247,724), 88,843 sq mi (230,103 sq km), NW Brazil, on the border of Venezuela and Guyana. Boa VistaBoa Vista
, city (1996 pop. 154,166), capital of Roraima state, NW Brazil, on the Rio Branco. Its economy is based on the processing and shipment of minerals (gold, bauxite, diamonds, and gold) found in the surrounding region.
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 is the capital. Located almost entirely in the Guiana HighlandsGuiana Highlands,
mountainous tableland, c.1,200 mi (1,930 km) long and from 200 to 600 mi (322–966 km) wide, N South America, bounded by the Orinoco and Amazon river basins, and by the coastal lowlands of the Guianas.
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, the region is drained by the Rio Branco. The climate is equatorial, with wet winters and dry summers. During the rainy season, transportation is almost impossible. The economy is based on the exploitation of tropical-forest products (largely rubber and Brazil nuts) and on minerals (diamonds, gold, bauxite, quartz, and some oil). Vast stretches of Roraima's rain forests have been leveled for industrial development. Cattle breeding is also important. There is little agriculture. Some 12,000 indigenous people live on the reservation of Raposa Serra do Sol.

The region was penetrated in the late 17th cent. by bandeiras seeking to enslave the native tribes. By the mid-18th cent., the Portuguese had fortified some areas to prevent penetration by the Spanish, English, and Dutch. Roraima was created in 1943 (as a federal territory) from land formerly belonging to AmazonasAmazonas
, state (1996 pop. 2,390,102), 604,032 sq mi (1,564,445 sq km), NW Brazil. The capital is Manaus.
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 state; until 1962 it was named Rio Branco.

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Roraima

 

a mountain massif in the Guiana Highlands, in the Sierra Pacaraima, on the border of Venezuela, Guyana, and Brazil. Elevation, 2,772 m. Mount Roraima is composed primarily of quartz sandstones penetrated by sills and dikes of diabase and gabbro. The flat peak has turret-like edges; the slopes are very steep (400 m).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

Roraima

a state of N Brazil: chiefly rainforest. Capital: Boa Vista. Pop.: 346 871 (2002). Area: 230 104 sq. km (89 740 sq. miles)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
This study is part of a wider investigation named 'Evaluation of Environmental Exposure to Mercury from Gold Mining in the Indigenous Yanomami Territory of Roraima, Amazon Region, Brazil' (Avaliacao da exposicao ambiental ao mercurio proveniente do garimpo de ouro na Terra Indigena Yanomami, Roraima, Amazonia, Brasil), approved by the National Research Ethics Committee of the National Health Council (CONEP/ CNS).
Pochota fendleri seeds were used from trees cultivated in the experimental field of Embrapa Roraima. Seeds were treated with 2 mL of fungicide Derosal[R] with 1 L water.
Podemos destacar que, por se tratar de amostra representativa de atletas juvenis de futsal do estado de Roraima e por ser um estudo exploratorio, visto as limitadas informacoes sobre sono de atletas dessa modalidade, tais resultados podem servir para se tracar um perfil destes atletas, bem como propor estrategias, visando, tanto a promocao da saude, como a melhoria do desempenho atletico.
Roraima Governor Suely Campos, who is backing the court order, said that he had been asking the Brazilian Supreme Court to shut the border.
As vagens foram coletadas de matrizes localizadas na capital de Boa Vista e no municipio do Amajari, Roraima em 2014 (Tabela 1) e, apos a coleta, levadas para o Laboratorio de Sementes da Embrapa Roraima, no qual foi feito o beneficiamento para a retirada das sementes, as quais foram armazenadas em sacos plasticos e enviadas ao Laboratorio de Central de Sementes da Universidade Federal de Lavras para realizacao das avaliacoes da qualidade fisica e fisiologica.
Para a cidade de Boa Vista, capital do estado de Roraima, a Lei no 244, de 06 de setembro de 1991 (BRASIL, 1991), que dispoe sobre a promocao do desenvolvimento urbano, zoneamento, uso e ocupacao do solo, sistema viario, parcelamento do solo e da outras providencias, aprovada pela Camara municipal de Boa Vista constitui-se no seu primeiro plano diretor, abrangendo zoneamento; uso e ocupacao do solo; sistema viario; e parcelamento do solo.
Em outra pesquisa, que estabelece o Indice de Vulnerabilidade Juvenil a Violencia e Desigualdade Racial--IVJ, realizada pela Secretaria Nacional da Juventude e Ministerio da Justica, tomando por base o ano de 2012, o estado de Roraima figura em 5 lugar na escala de vulnerabilidade, cujo indice 0,497 e considerado alto.
Roraima, 1000, CEP 97105-000, Santa Maria, RS, Brazil
6, 2017, 33 prisoners were killed in another riot in the Brazilian state of Roraima. Less than two weeks later 26 prisoners were killed in another riot.
Todos os individuos assinaram um termo de consentimento e o comite de etica da Universidade Estadual de Roraima - CEP/UERR, aprovou os procedimentos do estudo sob parecer no 1.999.047.