A denoising process or system uses convex optimization to determine characteristics of a clean signal. In embodiments, the applicator includes a stem, an applicator element disposed at a first end of the stem, and a closure cap supporting the stem at a second end of the stem opposite from the first end. The system features a variable polarization a polarizing relay assembly arranged to selectively permit the scattered light having a selected polarization orientation to pass along a detector optical axis to a light detection unit in the detection subsystem. The simulated portfolio has constituents and weights that are a function of the analyst’s recommendations on the securities in the selected set. The new variety is particularly well suited for growing as attractive ornamentation in parks and gardens.