Perennials, or plants and flowers that come back year after year, are found in virtually every yard.Perennial flowers work in multiple situations: in whole garden beds, in combination with annuals and bulbs, as accent to shrubs and trees, and in containers and windowboxes.ou'll also discover what perennial plants work well in sun or shade, USDA Hardiness Zones, growing requirements, and planting suggestions for perennials. View a list of perennials by common name or scientific name.
Homeopathic dilutions. In homeopathy, homeopathic dilution (known by practitioners as dynamisation or potentisation) is a process in which a substance is diluted with alcohol or distilled water and then vigorously shaken in a process called succussion.
Chromatography column. In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent; as in washing of loaded ion-exchange resins to remove captured ions. In a liquid chromatography experiment, for example, an analyte is generally adsorbed, or bound to, an adsorbent in a liquid chromatography column.