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https://www.selleckchem.com/products/namodenoson-cf-102.html Volatile constituents isolated from the stems (S) and leaves (L) of Pimenta dioica (PD) and Pimenta racemosa (PR) during the four seasons were analyzed using GLC/FID (Gas liquid chromatography - flame ionization detector) and GLC/MS (Gas liquid chromatography - mass spectrometry). Eighty-nine compounds were identified in all samples, in which oxygenated monoterpene represented by eugenol was the major constituent in PDS-S3 (autumn) (88.71%) and PDS-S2 (summer) (88.41%). Discrimination between P. dioica and P. racemosa leaves and stems in different seasons was achieved by applying chemometrics analysis comprising Principal Component Analysis (PCA) and Hierarchal Cluster Analysis (HCA). For P. dioica, they were partially segregated where leaves collected from spring and autumn were superimposed, and similarly for P. dioica stems collected in summer and autumn. For P. racemosa leaves, the PCA score plot showed that all seasons were completely segregated from each other, with the winter and autumn samples being ioupled with chemometrics provide a strong tool for the discrimination of samples, while Pimenta could afford a natural drug that could alleviate cancer.The dynamics of single hydrogen bubbles electrogenerated in acidic electrolytes at a Pt microelectrode under potentiostatic conditions is investigated in microgravity during parabolic flights. Three bubble evolution scenarios have been identified depending on the electric potential applied and the acid concentration. The dominant scenario, characterized by lateral detachment of the grown bubble, is studied in detail. For that purpose, the evolution of the bubble radius, electric current and bubble trajectories, as well as the bubble lifetime are comprehensively addressed for different potentials and electrolyte concentrations. We focus particularly on analyzing bubble-bubble coalescence events which are responsible for reversals of the direction of bubb

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