Results 21 to 30 of about 18,323 (221)

Constituintes químicos do caule de Protium hebetatuml (Burseraceae) Chemical constituents from the stem of Protium hebetatuml (Burseraceae)

open access: yesActa Amazonica, 2012
Protium é um gênero que se destaca na família Burceraceae, compreende cerca de 146 espécies, das quais um pequeno número tem sido estudada do ponto de vista fitoquímico.
Túlio de Orleans Gadelha Costa   +4 more
doaj   +1 more source

Larvicide Activity on Aedes aegypti of Essential Oil Nanoemulsion from the Protium heptaphyllum Resin

open access: yesMolecules, 2020
The aim of this work was to prepare a nanoemulsion containing the essential oil of Protium heptaphyllum resin and to evaluate the larvicidal activity and the residual larvicidal effect against Aedes aegypti.
Cleidjane Gomes Faustino   +9 more
semanticscholar   +1 more source

Chemical composition of the essential oils from two subspecies of Protium heptaphyllum Composição química do óleo essencial de duas subespécies do Protium heptaphyllum

open access: yesActa Amazonica, 2010
Qualitative and quantitative analyses of the volatile constituents from resin of Protium heptaphyllum (Aubl.) Marchand subsp. ulei (Swat) Daly (PHU), and Protium heptaphyllum (Aubl.) Marchand subsp. heptaphyllum (PHH), Burseraceae were performed using GC-
Delcio Dias Marques   +5 more
doaj   +1 more source

A test of the Geographic Mosaic Theory of Coevolution: investigating widespread species of Amazonian Protium (Burseraceae) trees, their chemical defenses, and their associated herbivore faunas

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionPlants and their insect herbivores represent a large fraction of the species in Amazonian forests and are often directly implicated in the origin and maintenance of biodiversity at local and regional scales.
Paul V. A. Fine   +10 more
doaj   +1 more source

Antibacterial substances from leaves of Protium spruceanum (Burseraceae): in vitro and in silico evaluation

open access: yes, 2021
Due to the increase of bacterial resistance, the search for new antibiotics is necessary and the medicinal plants represent its most important source. The aim of this study was to evaluate the antibacterial property of extract and fractions from Protium ...
T. Amparo   +12 more
semanticscholar   +1 more source

Two new species and a new combination in Protium (Burseraceae) from Costa Rica

open access: yesPhytoKeys, 2017
Two new species of Protium (Burseraceae) are described and illustrated: Protium aguilarii sp. nov., from the Pacific slope of the Osa Peninsula, Puntarenas Province, Costa Rica; and P. hammelii sp.
Daniel Santamaría-Aguilar   +1 more
doaj   +3 more sources

PHENOMENON OF LIGHT WATER IN PRODUCTS FOR ELDER PEOPLE

open access: yesВестник Северо-Кавказского федерального университета, 2022
Water belongs to the most important substance of all living organisms. Urbanization of society contributed to a significant increase in consumption of drinking and technical water and an increase in the amount of contaminated wastewater.
Mariya Gladkova   +3 more
doaj  

Inference on the Nature and the Mass of Earth's Late Veneer from Noble Metals and Gases [PDF]

open access: yes, 2001
Noble metals and gases are very sensitive to the late accretion to the Earth of asteroids and comets. We present mass balance arguments based on these elements that indicate that 0.7E22-2.7E22 kg of extraterrestrial bodies struck the Earth after core ...
Allègre   +81 more
core   +2 more sources

Characterisation of divertor detachment onset in JET-ILW hydrogen, deuterium, tritium and deuterium–tritium low-confinement mode plasmas

open access: yesNuclear Materials and Energy, 2023
Measurements of the ion currents to and plasma conditions at the low-field side (LFS) divertor target plate in low-confinement mode plasmas in the JET ITER-like wall materials configuration show that the core plasma density required to detach the LFS ...
M. Groth   +47 more
doaj   +1 more source

Ecological aspects of Langsdorffia hypogaea (Balanophoraceae) parasitism in the Pantanal wetlands

open access: yesActa Botânica Brasílica, 2015
Most studies on holoparasitic plants have focused on taxonomic or systematic issues. The objective of this study was to examine the ecological aspects of parasitism of Langsdorffia hypogaea (Balanophoraceae) in the Pantanal wetlands.
Carlos Rodrigo Lehn   +2 more
doaj   +1 more source

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