Results 81 to 90 of about 16,231 (179)
Medicines, 2017 Background: Protium species (Burseraceae) have been used in the treatment of various diseases and conditions such as ulcers and wounds. Methods: The essential oil from the oleoresin of Protium amazonicum was obtained by hydrodistillation and analyzed by ...
Prabodh Satyal +4 more
doaj +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
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
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
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
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
core
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
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
core
PALLADIUM NANOPARTICLES AS CATALYST OF ISOTOPE EXCHANGE MOLECULAR HYDROGEN REACTION [PDF]
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2012 It has been detected, that the size of metal nanoparticles has an influence on adsorption properties and catalytic activity of deposited palladium catalysts used in H2 – D2 exchange reactions and ortho-para protium conversion reactions.
A.A Odintsov, M.O. Sergeev, O.A. Boeva
doaj
Pesquisa Florestal Brasileira, 2012 Este trabalho teve por objetivo conhecer a fitossociologia do componente arboreo em uma mata ciliar de um corrego que desagua no Rio Sirinhaem, localizado no Engenho Buranhem, Sirinhaem, PE e identificar as sindromes de dispersao das especies.
Roseane Karla Soares da Silva +4 more
doaj