Results 91 to 100 of about 71,222 (245)

New records of spiders (Arachnida, Araneae) from the state of Roraima, northern Brazil [PDF]

Check List, 2017
The Brazilian spider fauna comprises thousands of described species, mostly known by only one or two records, and there are large sampling gaps. The spider fauna of the state of Roraima is enigmatic in Brazil and remains largely unknown.
Leonardo Carvalho, Pedro Martins, Marielle Schneider, Jimmy Cabra-García   +3 more
doaj   +3 more sources

Oviposition Activity of an Invasive Fruit Fly Species at Different Densities in Laboratory

Entomologia Experimentalis et Applicata, Volume 174, Issue 1, Page 45-52, January 2026.
Bactrocera carambolae Drew & Hancock, 1994 (Diptera: Tephritidae) is a major fruit fly pest affecting Brazil's international fruit trade due to phytosanitary restrictions. Although currently restricted to northern Brazil, little is known about its oviposition behavior. In this study, we investigated the daily oviposition pattern of B.
Fábio L. Galvão‐Silva, Jessica P. M. Oliveira, Alexandre S. Araújo, Tatiana P. dos Santos, Bianca D. G. de Lima, Willian Ramon L. Figueiredo, Dori Edson Nava, Ricardo Adaime   +7 more
wiley   +1 more source

Behind the Myth: Land Sparing and Deforestation in Brazil

Journal of Agrarian Change, Volume 26, Issue 1, January 2026.
ABSTRACT The land sparing model, that is, the idea that agricultural intensification fosters environmental protection, lacks empirical validation. In Brazil, sustainable intensification through the conversion of degraded pastures into agricultural areas became a promising and widespread solution to deforestation. We investigate the mismatch between the
Ludivine Eloy, Karina Y. M. Kato, Valdemar João Wesz Junior, Susanna Hecht   +3 more
wiley   +1 more source

Taxonomy of the Simulium perflavum species-group (Diptera: Simuliidae) : with description of a new species from Brazil [PDF]

, 1998
The larva, pupa, male, and female of Simulium trombetense n. sp. are described and illustrated. This species was collected in the Brazilian Amazon region in the states of Amapa, Amazonas, Para, and Roraima near the edges ofthe crystalline basement-rock ...
Adler, Peter H., Hamada, Neusa
core  

Lutas políticas por populações indígenas em Roraima (Brasil) e o enfrentamento à pandemia Covid-19

, 2020
We intend to point out in this brief reflection the constitution of spaces for debates and political struggle that indigenous populations in the state of Roraima have been carrying out and disseminating through electronic sites and virtual media, given ...
Larissa Maria de Almeida Guimarães, A. F. Júnior   +1 more
semanticscholar   +1 more source

INVENTÁRIO FLORÍSTICO PRELIMINAR DA ÁREA DESTINADA À CONSTRUÇÃO DO CAMPUS DA UERR EM RORAINÓPOLIS-RR

Ambiente, 2016
objetivo deste estudo foi realizar um inventário preliminar da composição florística de um trecho de floresta nativa em processo de sucessão ecológica destinada à construção do Campus da  Universidade Estadual de Roraima em Rorainópolis-RR.
Salatiel Bastos Borges, Marcos Miller Martins, Antonio da Silva e Silva, Adoniel Silva da Conceição, Vanessa de Andrade da Silva, Samuel dos Santos Barros, Tiago Monteiro Condé   +6 more
doaj   +1 more source

The truth functional hypothesis does not imply the liars paradox [PDF]

, 2016
The truth-functional hypothesis states that indicative conditional sentences and the material implication have the same truth conditions. Haze (2011) has rejected this hypothesis.
Martins Silva, M.
core   +2 more sources

Innovation Policy in an Emerging Economy: How Regional and Technological Disparities Moderate the Effects of a National Law

Review of Policy Research, Volume 43, Issue 1, January 2026.
ABSTRACT The Innovation Law, enacted in Brazil in 2004, laid the regulatory and institutional foundations for the national innovation system, aiming to promote closer interaction between universities, research institutions, and industry. However, nearly two decades after its implementation, its influence on the national innovation system remains ...
Breno Valente Fontes Araújo, Ana Claudia Azevedo, Fernanda Maria de Almeida, Cristiana Tristão Rodrigues   +3 more
wiley   +1 more source

AGGREGATE STABILITY OF AN ULTISOL IN REGIONS OF THE BRAZILIAN AMAZON

Revista de Agricultura Neotropical
The aggregate stability is essential for water infiltration, soil aeration and root penetration resistance, impacting water infiltration, moisture retention, soil aeration and root penetration resistance. Inadequate agricultural practices can limit root
Diego Lima de Souza Cruz, José Frutuoso do Vale Júnior, Leandro Timoni Buchdid Camargo Neves, Jessica Milanez Tosin Lima, Laís de Brito Carvalho, Ozimar de Lima Coutinho   +5 more
doaj   +1 more source

REGIONALIZAÇÃO DE RORAIMA

EXAMÃPAKU, 2014
O presente artigo tem por objetivo examinar os conceitos de região e mostrar as possibilidades da regionalização enquanto processo de construção de territórios, conceito este de extrema utilidade quando entendido como o processo de transformação de espaços naturais ou geográficos em espaços historicamente construídos, enfeixando a mul ...
openaire   +2 more sources