Results 91 to 100 of about 18,323 (221)
Atividades biológicas do Protium heptaphyllum [PDF]
, 2016 Monografia realizada no âmbito da unidade de Estágio Curricular do Mestrado Integrado em Ciências Farmacêuticas, apresentada à Faculdade de Farmácia da Universidade de CoimbraEmbora não seja muito conhecido na Comunidade Internacional, Protium ...
Leitão, Tiago Nuno da Cunha Martins Pratas
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Anomalously cool clumped isotope temperatures in tropical lagoon carbonates
The Depositional Record, Volume 11, Issue 5, Page 1479-1496, November 2025.Carbonate clumped isotopes were used to reconstruct paleoclimate from lagoon sediments in the central tropical Pacific. Results were anomalously cool compared to modern measurements and other paleoclimate records. This study highlights the important of understanding carbonate facies and depositional environments in interpreting clumped isotope results.
D. A. Wyman‐Feravich +4 more
wiley +1 more source
Química Nova, 2007 The use of natural products to demonstrate the silica gel column chromatography technique is proposed in the present article. It describes the separation of the triterpenes alpha- and beta-amirin from the diol breine and maniladiol, obtained from ...
Gerardo Magela Vieira Júnior +3 more
doaj +1 more source
Separation of hydrogen isotopes by cryogenic distillation [PDF]
, 2017 The hydrogen element exists naturally in the form of three isotopes, sharing the same number of proton and electron, which is equal to one, but not that of neutrons, which ranges from zero to two.
Valenti, Gianluca
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Ecology and Evolution, Volume 15, Issue 11, November 2025.Genomic analyses of Paepalanthus calvus across Brazilian montane ecosystems reveal strong population structure shaped by geographic distance and lithological heterogeneity. Fine‐scale edaphoclimatic factors are the main predictors of genetic divergence among distinct lithobiomes, underscoring the role of substrate‐driven ecological isolation and local ...
Mylena Cabrini +5 more
wiley +1 more source
Flora das cangas da Serra dos Carajás, Pará, Brasil: Burseraceae
RodriguésiaResumo É apresentado o levantamento das espécies de Burseraceae que ocorrem nas formações de canga na Serra dos Carajás, no estado do Pará, Brasil. Apenas uma espécie foi registrada: Protium pilosissimum.
Alice Lima Hiura +1 more
doaj +1 more source
Flora of Rio de Janeiro: Protium Burm. f. (Burseraceae) [PDF]
RodriguésiaThe current study aims to contribute to the knowledge the genus Protium occurring in the state of Rio de Janeiro. Collections deposited in national herbaria were examined and field collections were carried out, in addition to research in specialized ...
Débora Cássia da Silva +1 more
doaj +1 more source
Ceylon Journal of Science, 2018 Tropical forests of Bangladesh are facing rapid loss in floristic diversity and resultant changes of vegetation necessitates the assessment of plant composition and diversity.
Bishwajit Chowdhury +3 more
doaj +1 more source
An Oxidized Squalene Derivative from <em>Protium subserratum</em> Engl. (Engl.) Growing in Peru
Molecules, 2012 <em>Protium</em> <em>subserratum</em> (Burseraceae) is a neotropical tree species that is comprised of several habitat-specific ecotypes having distinct defense chemical profiles.
John Lokvam, Paul V. A. Fine
doaj +1 more source
Genes, 2019 Plants in the Burseraceae are globally recognized for producing resins and essential oils with medicinal properties and have economic value. In addition, most of the aromatic and non-aromatic components of Burseraceae resins are derived from a variety of
G. Damasco +4 more
semanticscholar +1 more source