Results 11 to 20 of about 78,108 (333)
Hypergene alterations of succinite and its vulnerability under various environmental conditions
Geo&Bio, 2021 The article describes the alteration of succinite under conditions of hypergenesis as a result of oxidation, including a change in colour, contraction of the outer surface and the appearance of microcracks, changes in the construction of the outer ...
U. Naumenko +3 more
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Health Science Reports, 2023 Background and Aims Natural coniferous resins are used in traditional medicine for the treatment of skin wounds. Coniferous wood resins (“callus” resin) are a mixture of abietic (resin) acids, lignans such as pinoresinol, and p‐coumaric acid.
Elias Haapakorva +3 more
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Species-level determination of closely related araucarian resins using FTIR spectroscopy and its implications for the provenance of New Zealand amber [PDF]
PeerJ, 2015 Some higher plants, both angiosperms and gymnosperms, can produce resins and some of these resins can polymerize and fossilize to form ambers. Various physical and chemical techniques have been used to identify and profile different plant resins and have
Leyla J. Seyfullah +2 more
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Increased resin collection after parasite challenge: a case of self-medication in honey bees? [PDF]
PLoS ONE, 2012 The constant pressure posed by parasites has caused species throughout the animal kingdom to evolve suites of mechanisms to resist infection. Individual barriers and physiological defenses are considered the main barriers against parasites in ...
Michael D Simone-Finstrom, Marla Spivak
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Plants, 2020 Propolis is a resinous mixture, made by the honeybees from substances collected from tree or other plant buds, plant exudates, or resins found in the stem, branches, or leaves of different plants.
Daniel Severus Dezmirean +3 more
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Recent advances in Fenton-like treatment of radioactive ion exchange resins
Chemical Engineering Journal Advances, 2023 Ion exchange resins (IERs) are widely used to remove radioactive contaminants from various commercial nuclear power plant systems. After the completion of their useful life cycle, IERs are removed from the nuclear facility and are known as spent resins ...
Muhammad Aamir Hafeez +6 more
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Tree resin composition, collection behavior and selective filters shape chemical profiles of tropical bees (Apidae: Meliponini). [PDF]
PLoS ONE, 2011 The diversity of species is striking, but can be far exceeded by the chemical diversity of compounds collected, produced or used by them. Here, we relate the specificity of plant-consumer interactions to chemical diversity applying a comparative network ...
Sara D Leonhardt +2 more
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Anti-Mycobacterium tuberculosis Terpenoids from Resina Commiphora
Molecules, 2019 Four new compounds including two new sesquiterpenoid dimers, commiphoroids E (1) and F (2), a new triterpenoid (3), and a new sesquiterpenoid (4), along with three known terpenoids (5−7) were isolated from Resina Commiphora, whose structures were ...
Chuan-Zhi Zhu +7 more
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Reduction of the formaldehyde content in leathers treated with formaldehyde resins by means of plant polyphenols [PDF]
, 2017 Formaldehyde has applications in many industrial processes, including synthesis of resins and syntans to be used in the retanning process of leather. When resins are employed, they can hydrolyse, releasing formaldehyde.
Cuadros Domènech, Sara +3 more
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Resin glycosides from Convolvulaceae plants [PDF]
Journal of Natural Medicines, 2017 Resin glycosides are well known as purgative ingredients, which are characteristic of certain crude drugs such as Mexican Scammony Radix, Orizabae Tuber, and Jalapae Tuber, all of which originate from Convolvulaceae plants. Depending on their solubility in ether, these are roughly classified into two groups-jalapin (soluble) and convolvulin (insoluble).
openaire +2 more sources