Results 21 to 30 of about 16,231 (179)

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

Acta 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, Rogério Antônio Sartori, Telma Leda Gomes Lemos, Luciana Lucas Machado, João Sammy Nery de Souza, Francisco José Queiroz Monte   +5 more
doaj   +1 more source

PHENOMENON OF LIGHT WATER IN PRODUCTS FOR ELDER PEOPLE

Вестник 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, Gennady Kasyanov, Valentin Shipulin, Alexei Hristyuk   +3 more
doaj  

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

Nuclear 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, V. Solokha, S. Aleiferis, S. Brezinsek, M. Brix, I.S. Carvalho, P. Carvalho, G. Corrigan, D. Harting, N. Horsten, I. Jepu, J. Karhunen, K. Kirov, B. Lomanowski, K.D. Lawson, C. Lowry, A.G. Meigs, S. Menmuir, E. Pawelec, T. Pereira, A. Shaw, S. Silburn, B. Thomas, S. Wiesen, P. Börner, D. Borodin, S. Jachmich, D. Reiter, G. Sergienko, Z. Stancar, B. Viola, P. Beaumont, J. Bernardo, I. Coffey, N.J. Conway, E. de la Luna, D. Douai, C. Giroud, J. Hillesheim, L. Horvath, A. Huber, P. Lomas, C.F. Maggi, M. Maslov, C. Perez von Thun, S. Scully, N. Vianello, M. Wischmeier   +47 more
doaj   +1 more source

CONSTITUINTES QUÍMICOS DE Protium paniculatum (BURSERACEAE) [PDF]

Acta Amazonica, 1993
Dos extratos etéreo e etanólico da casca da madeira de Protium paniculatum Engl. foram isolados á e β-AMIRINA (0,012%), β-sitosiero! e estigmasterol (0,003%) e o ácido 3,3'-di-0-metilelágico (0,093%0).
Maria das G. B. ZOGHBI, Jane B. G. SIQUEIRA, Esther L. A. WOLTER, Orlando L. P. Júnior   +3 more
doaj   +1 more source

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

Acta 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, Suzana Maria Salis, Patrícia Póvoa Mattos   +2 more
doaj   +1 more source

Review of Water Hydrogen Isotope Separation Technology

He huaxue yu fangshe huaxue
Hydrogen isotopes, such as protium(H), deuterium(D), and tritium(T), are widely used in medical treatment, nuclear energy, national defense, and other fields.
SHI Zhang-hong, ZHAO Qing-kai, CHEN Chang-an   +2 more
doaj   +1 more source

ESSENTIAL OIL OF Protium unifoliolatum (BURSERACEAE) [PDF]

Acta Amazonica, 1993
The major constituents of the leaf essential oil of P. unifoliolatumare trans-caryophyllene (37.45%), limonene (24.23%) and α-humulene (9.94%).
Maria das G. B. ZOGHBI, Emidio V. L. da CUNHA, Wilson WOLTER FILHO   +2 more
doaj   +1 more source

Separação semipreparativa de α e β-amirina por cromatografia líquida de alta eficiência

Química Nova, 2011
The resin obtained from species of the genus Protium (Burseraceae) is formed mostly of pentacyclic triterpenes: α-amyrin and β-amyrin. The separation and purification of these triterpenes were optimized in three steps.
Marluce Oliveira Dias, Lidilhone Hamerski, Angelo C. Pinto   +2 more
doaj   +1 more source

Thermodynamics Isotope Effects of LaNi4.25Al0.75 Absorbing Protium,Deuterium and Tritium

Journal of Isotopes, 2016
The P-C-T curves of LaNi4.25Al0.75 alloy absorbing protium, deuterium and tritium were investigated at constant temperature and volume in our metal hydride research system.
LIANG Bin-bin1;ZHAO Wei-wei1;HE Chang-shui1;QUE Ji2;YANG Hong-guang1
doaj   +1 more source

Estrutura e síndromes de dispersão de espécies arbóreas em um trecho de mata ciliar, Sirinhaém, Pernambuco, Brasil Structure and dispersal syndromes of tree species in a stretch of riparian vegetation, Sirinhaém, Pernambuco State, Brazil

Pesquisa Florestal Brasileira, 2012
<p>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. O
Roseane Karla Soares da Silva, Ana Lícia Patriota Feliciano, Luiz Carlos Marangon, Rosival Barros de Andrade Lima, Wedson Batista dos Santos   +4 more
doaj   +1 more source