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Healthcare research pursues, most of the time, to find natural sources of bioactive compounds for treatment of various diseases. A source of natural compounds with therapeutically effect is represented by plants that have been used, for thousands years, in traditional medicine. Usnea barbata L. is a lichen – a symbiotic organism with a special structure: fungus and alga. In this case, the resulted thallus, is very different in structure, properties and natural compounds, to the two plants taken separately. These...

The last great poem written by T. S. Eliot, The Four Quartets, offers a complete vision of his philosophical and poetical mind. Beginning with his first questioning poem, The Love Song of J. Alfred Prufrock, going through Gerontion and The Waste Land, with their expectations and prophecies, and advancing into the poems after conversion (Ash-Wednesday, The Ariel Poems) where the questions receive answers and the prophecies, fulfillment, the main themes and symbols of this last poem develop their power of revelation...