Results 61 to 70 of about 18,660 (147)

TXCA‐Mediated Synthesis of Halogenated 4‐Aminocoumarins Derivatives Under Mild Conditions and In Silico Evaluation Against Alzheimer's Disease‐Related Protein Targets

ChemistrySelect, Volume 11, Issue 16, 27 April 2026.
A green and sustainable protocol for the halogenation of 4‐aminocoumarins using trihaloisocyanuric acids was developed, affording compounds with the predicted potential to inhibit protein targets associated with Alzheimer's disease. ABSTRACT A highly efficient and selective protocol for the halogenation of the C─H bond of 4‐aminocoumarin derivatives is
Maryelle A. G. de Carvalho, Vinicius C. Alves, Lara M. Flores, Carlos V. Doerner, Tácia K. Hall, Cristiani F. Bortolatto, Louis P. Sandjo, José S. S. Neto, Antonio L. Braga, Francisco F. de Assis   +9 more
wiley   +1 more source

Monitoramento da suscetibilidade de populações de Triatoma sordida Stål, 1859 (Hemiptera: Reduviidae) ao inseticida deltametrina, na região Centro-Oeste do Brasil Monitoring the susceptibility of Triatoma sordida Stål, 1859 (Hemiptera: Reduviidae) to deltamethrin insecticide, in Central-Western Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 2011
INTRODUÇÃO: Populações de Triatoma sordida Stål, 1859 foram investigadas quanto à suscetibilidade à deltametrina. MÉTODOS: Análise por meio de bioensaios por aplicação tópica em 11 populações de T.
Marcos Takashi Obara, Vanessa Camargo Garbeloto Otrera, Rodrigo Gurgel Gonçalves, Janduhy Pereira dos Santos, Marcelo Santalucia, João Aristeu da Rosa, Paulo Silva de Almeida, José Maria Soares Barata   +7 more
doaj  

Mortality due to systemic mycoses as a primary cause of death or in association with AIDS in Brazil: a review from 1996 to 2006 [PDF]

, 2009
Deaths caused by systemic mycoses such as paracoccidioidomycosis, cryptococcosis, histoplasmosis, candidiasis, aspergillosis, coccidioidomycosis and zygomycosis amounted to 3,583 between 1996-2006 in Brazil. When analysed as the underlying cause of death,
LAURENTI, Ruy, PRADO, Marli, SILVA, Marcelo Barbosa da, TABORDA, Carlos P, TRAVASSOS, Luiz R   +4 more
core   +3 more sources

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

TAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann, Gilberto Morillo, Ulrich Meve, Héctor A. Keller, Kurt Neubig   +4 more
wiley   +1 more source

Tree composition of a seasonal semideciduous forest in Pirenópolis, Goiás state [PDF]

, 2008
A Floresta Estacional Semidecidual é um ecossistema bastante ameaçado no Brasil, cuja condução de levantamentos florísticos em florestas remanescentes é fundamental para fornecer dados que contribuam para a proposição de estratégias de manejo e a ...
Imaña Encinas, José, Macedo, Lucélia Alves de, Paula, José Elias de, Ribeiro, Gustavo Silva, Santana, Otacílio Antunes   +4 more
core  

Borehole Logging Lithological Classification in Carbonatite‐Hosted Niobium Deposit Integrating Geophysical and Geochemical Data With Self‐Organizing Maps

Geophysical Prospecting, Volume 74, Issue 3, March 2026.
ABSTRACT Lithological classification from borehole data remains challenging in geologically complex alkaline–carbonatite systems, where compositional overlap and gradual transitions between lithotypes limit conventional interpretation methods. This study presents an integrated and automated workflow for drill‐core lithological classification using self‐
Fabrizzio R. Costa, Lívia Namie S. Nishimura, Reginaldo Antonio R. Filho, Bruno P. Milanezi, Dong Yaosong, Cleyton de C. Carneiro, Carina Ulsen   +6 more
wiley   +1 more source

Youth well-being in Brazil : an index for cross-regional comparisons [PDF]

This study constructs three indices to measure how well Brazil's young people are surviving their transition to adulthood. Youth development is difficult to quantify because of the multi-dimensionality of youth behavior.
Borges, Vicente Cassepp, Cunningham, Wendy, Dell'Aglio, Debora, Koller, Silvia, Leon, Joana Severo   +4 more
core  

Floristic of the herbaceous and subshrub layer of a moist grassland in Brasília, Brazil. [PDF]

, 2007
A riqueza florística do estrato herbáceo-arbustivo de campo limpo úmido, uma vegetação campestre do bioma Cerrado, é pouco conhecida, embora as ervas e subarbustos sejam o maior componente na vegetação de Cerrado.
Felfili, Jeanine Maria, Munhoz, Cássia Beatriz Rodrigues   +1 more
core  

Revision of Manettia (Rubiaceae) in Paraguay

Nordic Journal of Botany, Volume 2026, Issue 2, February 2026.
Manettia Mutis is a Neotropical genus comprising over 100 species, many of which are only known from their original descriptions or, at most, from revisions dating back over 100 years. Recent review studies have remained unpublished for several years. Conventional taxonomic methods are followed.
Silvana Yasmin Gauto, Ana Maria Gonzalez, Roberto Manuel Salas   +2 more
wiley   +1 more source

High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees

Oikos, Volume 2026, Issue 2, February 2026.
Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27
Elmecelli Moraes de Castro Souza, Fernando Henrique Antoniolli Farache, Luis Francisco Mello Coelho, Finn Kjellberg, Astrid Cruaud, Jean‐Yves Rasplus, Rodrigo Augusto Santinelo Pereira   +6 more
wiley   +1 more source