Results 41 to 50 of about 6,712 (121)

Molecular phylogenetic analysis sheds light on the diversity and evolutionary history of the Neotropical and African Triplophyllum (Tectariaceae)

open access: yesJournal of Systematics and Evolution, EarlyView.
We used a molecular approach to resolve the evolutionary lineages of Neotropical Triplophyllum, uncovering that current species circumscriptions are hindered by high morphological homoplasy in indument characters. Our results support the recognition of three new species and provide a necessary neotypification for T.
Mauricio Gonçalves Nunes   +6 more
wiley   +1 more source

Perfil da vítima e características da violência contra a mulher no estado de Rondônia - Brasil

open access: yesRevista Cuidarte, 2018
Introdução: A violência contra a mulher é um fenômeno grave que atinge os mais variados grupos. O Norte do Brasil é líder nacional em casos de violência contra a mulher, e o estado de Rondônia, é detentor da sétima maior taxa de feminicídio no Brasil ...
Caio Alves Barbosa de Oliveira   +5 more
doaj   +1 more source

The Effect of Brazil's Family Health Program on Cognitive Skills

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper examines the effect of Brazil's Family Health Program (Programa Saude da Familia, FHP) on cognitive skills (measured by test scores) of fifth‐grade students. We use biennial data from national exams between 2007 and 2015, and variation in the FHP implementation date across municipalities, birth cohort, and test year to identify the ...
Pinar Mine Gunes, Magda Tsaneva
wiley   +1 more source

Conceptual Tripod of Ecotourism for Compliance Assessment of a National Park in the Brazilian Amazon

open access: yesJournal of Tourismology
National Parks in Brazil are Natural Protected Areas where ecotourism can be developed associated with nature conservation, respecting the guidelines of its Management Plan (MP).
Margarita María Dueñas Orozco   +2 more
doaj   +1 more source

Early Warning Systems and Emergency Declarations During Brazil's Largest Dengue Outbreak

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Objectives Early warning systems (EWSs) are essential for alert, detection, and response to potential public health emergencies. Brazil's 2024 dengue epidemic, the largest ever recorded, offers a critical case for assessing correspondence between timely epidemic risk detection and health governance responsiveness.
Lorena Guadalupe Barberia   +10 more
wiley   +1 more source

Epopeia historiográfica na Amazônia: entre acervos e documentos da Educação Profissional rondoniense

open access: yesCadernos de História da Educação
O presente artigo, um diálogo com uma pesquisa de doutoramento da Universidade Federal de Rondônia (Unir) ancorado na abordagem qualitativa, procura analisar o Dossiê Escolar do Instituto Federal de Rondônia, Campus Ariquemes, na tentativa de ver com ...
Robson Fonseca Simões   +1 more
doaj   +1 more source

Environmental and Chemical Factors Determining the Structure of Leaf Litter Sporulating Conidial Fungi Communities in Two Preserved Areas of Brazilian Atlantic Forest

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 3, September 2026.
The Brazilian Northeast shelters fragments of the Atlantic Forest that, although historically under‐sampled, are home to a high diversity of organisms. In this context, conidial fungi are crucial for ecological balance, standing out for their role in the decomposition of organic matter and nutrient cycling.
Wanderson L. Tavares   +3 more
wiley   +1 more source

Estudos de biodegradação de óleo diesel por consórcio microbiano coletado em Porto Velho - RO, amazônia

open access: yesQuímica Nova, 2011
The goal of this research was to evaluate the biodegradation of diesel by a microbial consortium collected in a region close to distributors of fuel. The experiments were monitored by SPME-GC-FID and SPME-GC-MS. The consortium showed a high potential for
Cleber C. Luz   +7 more
doaj   +1 more source

Ingestion of attractive toxic sugar baits containing ivermectin before and after blood feeding affects the biology and reproduction of Aedes aegypti (Diptera: Culicidae)

open access: yesMedical and Veterinary Entomology, Volume 40, Issue 3, Page 551-559, September 2026.
Attractive toxic sugar bait containing ivermectin (ATSB‐IVM) ingestion markedly reduced blood feeding, survival, oviposition, egg production and larval hatching, with the strongest effects when baits were ingested before blood feeding. Timing of ingestion (48–96 h before or after blood feeding) shaped sublethal impacts across the first and second ...
Thais Alves de Moura   +2 more
wiley   +1 more source

A interface entre o desenvolvimento na Amazônia e as comunidades indígenas: a emergência dos Suruí como sujeitos da ação política

open access: yesRevista IDEAS, 2017
Este artigo é parte dos resultados de um estudo que teve como objetivo analisar o cenário das comunidades indígenas, sobretudo verificando a interação entre os mecanismos de estabilidade e mudança acionados diante do atual processo de desenvolvimento.
Nathalia Thaís Cosmo da Silva   +1 more
doaj  

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