Results 11 to 20 of about 73,487 (143)
Stingless bees as collectors of resin from Bertholletia excelsa Bonpland (Lecythidaceae)
Stingless bees build their nests using, in general, clay, wax and resins; in addition, these bees also use resins for defense against natural enemies and as an antimicrobial agent.
Iris A. Cruz, Paulo C. S. Barroso
doaj +1 more source
What was a mortarium used for? Organic residues and cultural change in Iron Age and Roman Britain. [PDF]
The Romans brought the mortarium to Britain in the first century AD, and there has long been speculation on its actual purpose. Using analysis of the residues trapped in the walls of these ‘kitchen blenders’ and comparing them with Iron Age and Roman ...
Cramp, Lucy J E+2 more
core +1 more source
Biodiversity of the Indian Desert and it´s value [PDF]
The state of Rajasthan is situated between 23º3 and 30º12 N latitude and 69º30 and 78º17 E longitude . The total land area of the state is about 3,24,239 km²out of which about 1,98,100 km² is arid and the rest semi arid.
Kotia, Amit, Kumar, Ashwani
core +2 more sources
Removal of disinfection by-product precursors by coagulation and an innovative suspended ion exchange process [PDF]
This investigation aimed to compare the disinfection by-product formation potentials (DBPFPs) of three UK surface waters (1 upland reservoir and 2 lowland rivers) with differing characteristics treated by (a) a full scale conventional process and (b ...
Jarvis, Peter+4 more
core +1 more source
“Green” resole phenolic resins for laminating applications were synthesized, and their properties and thermal stability were determined. The plant-based cardanol and condensed tannin were used as the partial substitutes of up to 40% of the phenol in the ...
Francisco Cardona+1 more
doaj +1 more source
Adsorption of plant phenols by polystyrene resins
Adsorption of nine plant phenols by nine polystyrene ion-exchange resins was investigated in an experimental model system. The phenols were adsorbed by Amberlite CG-120 more efficiently than any other acidically charged resins tested in this study.
Akiyoshi Fukushima+2 more
doaj +1 more source
Transition of plant resins from the biosphere to the lithosphere
In the article the authors consider in detail the process of transition of plant resins from the biosphere to the lithosphere, characterize the conditions and paleogeographic situation of such transition, the formation of deposits of resin minerals and ...
Viktor M. Matsui, Uliana Z. Naumenko
doaj +1 more source
The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham+53 more
core +2 more sources
This research aimed at studying some of the chemical compounds of the leaves and stems of a local plant "Coriander". Inclusive chemical Detection for the most important active chemical compounds that exist in this plant were carried out.
Raghad Z. Sulaiman, Yaseen M. Ahmed
doaj +1 more source
In Indonesia, Epiphyllum oxypetalum (DC.) Haw. is known as Wijaya Kusuma. The plant is grown for home decorating and used widely as medicine in some areas.
Chandra Adam Lesmana+2 more
doaj +1 more source