Results 111 to 120 of about 127,757 (257)

Valorization of the peel and husk of guaraná (Paullinia cupana): oil extraction, chemical composition, cytotoxicity, and antitumor potential

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 879-892, March/April 2026.
Abstract Guaraná (Paullinia cupana) is a fruit native to the Amazon region. Due to its widespread use, primarily in beverages, its production has grown over the years. The seed is the only commercially valuable part of the fruit so the guaraná production chain generates byproducts, including peel, husk, and spent seed.
Leiliane do Socorro Sodré de Souza, Guilherme Teixeira de Azevedo, Eduardo Leonarski, Giovana Lima de Souza, Rafael Lopes e Oliveira, Sérgio Duvoisin Junior, Karina Cesca, Débora de Oliveira, Anderson Mathias Pereira, Ariane Mendonça Kluczkovski   +9 more
wiley   +1 more source

Does long COVID in people living with HIV resemble the functional phenotype of non-HIV individuals who had moderate or severe acute COVID-19? A retrospective cross-sectional study

Frontiers in Medicine
IntroductionIt has been postulated that individuals with long COVID have reduced exercise capacity, just as people living with HIV (PLWH), although having even lower exercise capacity.
Anna Gabriela Rezende, Jefferson Valente, Cássia da Luz Goulart, Cássia da Luz Goulart, Fernanda Facioli, Bernardo Maia, Victor Irungu Mwangi, Hector Bonilla, Frits M. E. Franssen, Camila Miriam Suemi Sato Barros do Amaral, Camila Miriam Suemi Sato Barros do Amaral, Thaís Jordão Perez Sant'Anna Motta, Marcia Alexandre, Marcia Alexandre, Luiz Carlos de Lima Ferreira, Luiz Carlos de Lima Ferreira, Gerson Cipriano Junior, Guilherme Peixoto Tinoco Arêas, Fernando Almeida-Val, Fernando Almeida-Val, Fernando Almeida-Val   +20 more
doaj   +1 more source

Ecological studies of the aquatic soil invertebrates in three inundation forests of Central Amazonia

, 1975
From January 1971 till August 1972 ecological studies were carried out on the aquatic macroinvertebrates of the benthos community of three Central-Amazonian inundation forests.
Irmler, U.
core  

Scale-adjusted metrics for predicting the evolution of urban indicators and quantifying the performance of cities

, 2015
More than a half of world population is now living in cities and this number is expected to be two-thirds by 2050. Fostered by the relevancy of a scientific characterization of cities and for the availability of an unprecedented amount of data, academics
Alves, Luiz G. A., Lenzi, Ervin K., Mendes, Renio S., Ribeiro, Haroldo V.   +3 more
core   +3 more sources

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

Ecography, Volume 2026, Issue 3, March 2026.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga, Anderson S. Bueno, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Affonso H. N. Souza, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Immunological Dynamics Associated with Direct-Acting Antiviral Therapies in Naive and Experimented HCV Chronic-Infected Patients

Mediators of Inflammation, 2019
The therapeutic strategies used in the treatment of hepatitis C are essentially based on the combination of direct-acting antiviral agents (DAAs). This therapy has been shown to be very effective in relation to patient adherence to treatment and has ...
Grenda Leite Pereira, Andréa Monteiro Tarragô, Walter Luiz Lima Neves, Pedro Vieira da Silva Neto, Priscila Sarmento de Souza, Juliana dos Santos Affonso, Keyla Santos de Sousa, Jéssica Albuquerque da Silva, Allyson Guimarães Costa, Flamir da Silva Victoria, Marilu Barbieri Victoria, Adriana Malheiro   +11 more
doaj   +1 more source

Exotic Physics

, 2016
A selection of results for searches for exotic physics at the LHC are presented. These include a search for massive resonances, dark matter with a high energy jet in association with large missing transverse momentum, long-lived neutral particles, and ...
Sigamani, Michael
core  

NECROMASS PRODUCTION: STUDIES IN UNDISTURBED AND LOGGED AMAZON FORESTS [PDF]

, 2008
Necromass stocks account for up to 20% of carbon stored in tropical forests and have been estimated to be 14–19% of the annual aboveground carbon flux. Both stocks and fluxes of necromass are infrequently measured. In this study, we directly measured the
Keller, Michael M., Palace, Michael W., Silva, Hudson   +2 more
core   +2 more sources

Degradation and Restoration of Anthrosols in the Amazonia Under Contrasting Agricultural Practices: Evidence From the Assessment of Soil Physical Quality and Carbon and Nitrogen Stocks

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT This study was conducted to assess the impact of different agricultural practices on the physical quality and the carbon and nitrogen stocks of anthropogenic soils used by smallholder farmers in Central Amazonia, Brazil. Undisturbed and disturbed soil samples were collected at three depths (0–0.10 m, 0.10–0.20 m, and 0.20–0.30 m), with five ...
Heitor Marcel da Silva Ribeiro, Reginaldo Barboza da Silva, Francisca Alcivania de Melo Silva, Newton Paulo de Souza Falcão, Zigomar Menezes de Souza, Guilherme Souza Florencio, Rodrigo Batista Pinto, Rafael Duarte L'Abbate, Tiago Osório Ferreira, Diogenes L. Antille   +9 more
wiley   +1 more source

ASSOCIATION BETWEEN PLASMODIUM VIVAX MALARIA, GLUCOSE-6-PHOSPHATE DEHYDROGENASE (G6PD) DEFICIENCY AND PROGRESSION OF METHEMOGLOBINEMIA: CLINICAL AND DIAGNOSTIC IMPLICATIONS IN PEDIATRICS

Brazilian Journal of Infectious Diseases
Introduction: Plasmodium vivax malaria, an endemic parasitic disease in several regions worldwide, represents an important public health problem, especially in pediatric populations.
Carlos Yagor Silva Nascimento, Thiago Gomes de Oliveira, Vanine de Lurdes Aguiar Lima Fragoso, Sâmara da Silva Amaral, Maria Francisca da Silva Amaral   +4 more
doaj   +1 more source