The response of psoriasis to betamethasone valerate and clobetasol propionate.: A 6-MONTH CONTROLLED STUDY
SUMMARY ::: ::: Twelve patients with symmetrical psoriasis were studied for a period of 6 months. Clobetasol propionate 0.05% ointment was applied to the lesions on one side and betamethasone valerate 0.1% ointment to those on the other side as a double-blind controlled trial of these two treatments. ::: ::: ::: ::: All the patients showed a relative improvement on the side treated with clobetasol propionate. Clobetasol propionate-treated lesions tended to clear for longer than the corresponding betamethasone valerate treated lesions. The condition of five of the patients was better at the end of the study period than at the beginning.
We demonstrate a methodology to simultaneously find the optimal impedances in the design space of continuum mode as well as the corresponding ideal matching network of RFPAs. The methodology relies on the Belevitch representation of S parameters to avoid the apriori selection of matching network topology. The proposed methodology in conjunction with particle swarm optimization (PSO) is applied to design the broadband power amplifier in the class BJF-1 continuum to target constant efficiency and output power between 2.5 - 4.6 GHz using a GaN HEMT CGH40010. The resulting ideal network is further optimized in EM simulations and its measured values show good match with EM simulations. Even though PSO algorithm is used in this work, any of the evolutionary algorithms or machine learning can be used to implement the proposed methodology.