Results 71 to 80 of about 16,231 (179)

Potencial regenerativo de espécies arbóreas em fragmento de Mata Atlântica, Pernambuco, Brasil

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2017
Objetivou-se caracterizar o estrato regenerante de um fragmento de Floresta Ombrófila Densa das Terras Baixas, mediante avaliações da riqueza, estrutura e diversidade. Para estimar os índices de regeneração natural por espécie para cada classe de tamanho
Rosival Barros de Andrade Lima   +4 more
doaj   +1 more source

protium

open access: yes, 2014
Citation: 'protium' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04903 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage
openaire   +1 more source

Evaluating the Efficacy of Low Salinity Waterflood and Electrokinetic Enhanced Oil Recovery in Mitigating Gas Condensate Banking

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 322-334, January 2026.
Left panel: Natural Depletion → sharp pressure decline → condensate bank builds → reduced gas rate. The schematics show the condensate bank around the producer. Middle panel: Low Salinity Water → brine injection → improved pressure support → piston‐like condensate displacement → higher gas rate.
Princewill M. Ikpeka   +1 more
wiley   +1 more source

Analysis of multispecies point patterns by usingmultivariate log-Gaussian Cox processes [PDF]

open access: yes, 2016
Multivariate log-Gaussian Cox processes are flexible models for multivariate point patterns. However, they have so far been applied in bivariate cases only. We move beyond the bivariate case to model multispecies point patterns of tree locations.
Allard   +39 more
core   +2 more sources

Composition and Biological Activity of Essential Oils from

open access: yesNatural Product Communications, 2009
The composition and biological activity of the essential oils from leaves, fruits, stems and bark of Protium confusum are reported for the first time.
Ana I. Santana   +5 more
doaj   +1 more source

Physicochemical Characterization and Biological Activities of the Triterpenic Mixture α,β-Amyrenone

open access: yesMolecules, 2017
α-Amyrenone and β-amyrenone are triterpenoid isomers that occur naturally in very low concentrations in several oleoresins from Brazilian Amazon species of Protium (Burseraceae).
Rosilene G. S. Ferreira   +4 more
doaj   +1 more source

Dependence of Biocatalysis on D/H Ratio: Possible Fundamental Differences for High-Level Biological Taxons

open access: yesMolecules, 2020
The kinetics of biological reactions depends on the deuterium/protium (D/H) ratio in water. In this work, we describe the kinetic model of biocatalytic reactions in living organisms depending on the D/H ratio.
Igor Zlatskiy   +9 more
doaj   +1 more source

Deuteration of Six‐Membered N‐Heteroarenes: Chemistry and Applications

open access: yesChemistry – A European Journal, Volume 31, Issue 67, December 1, 2025.
Deuterated six‐membered N‐Heteroarenes (6NHetAr) are finding utility in an increasing repertoire of applications. Our paper comprehensively reviews synthetic approaches that have been reported for the deuteration of 6NHetAr and their fused counterparts while providing an overview of established and emerging applications for these materials.
Liju Raju   +4 more
wiley   +1 more source

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

open access: yesAnais da Academia Brasileira de Ciências, 2017
Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has ...
ELISÂNGELA B.B. ESTEVAM   +11 more
doaj   +1 more source

Trait coordination reveals the fast–slow plant economics spectrum along the vertical canopy profile in central Amazonian forests

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3596-3610, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding how environmental drivers affect tree functioning is essential to improve predictions of tropical forests' response to climate change. While functional traits directly influence tree performance, our understanding of how canopy environments shape their ...
Leonardo G. Ziccardi   +13 more
wiley   +1 more source

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