The aim of ensemble precipitation prediction in this paper was to achieve the best performance via artificial intelligence (AI) based modeling. In this way, ensemble AI based modeling was proposed for prediction of monthly precipitation with three different AI models (feed forward neural network-FFNN, adaptive neural fuzzy inference system-ANFIS and least square support vector machine-LSSVM) for the seven stations located in the Turkish Republic of Northern Cyprus (TRNC). Two scenarios were examined each having specific inputs set. The scenario 1 was developed for predicting each station’s precipitation through its own data at previous time steps while in scenario 2, the central station’s data were imposed into the models, in addition to each station’s data, as exogenous input. Afterwards, the ensemble modeling was generated to improve the performance of the precipitation predictions. To end this aim, two linear and one non-linear ensemble techniques were used and then the obtained outcomes were compared. In terms of efficiency measures, the averaging methods employing scenario 2 and non-linear ensemble method revealed higher prediction efficiency. Also, in terms of Skill score, non-linear neural ensemble method could enhance predicting efficiency up to 44% in the verification step.

Aims: Based on recent studies, it was indicated that gold (Au-197) nanoparticles could be safely prescribed and used to enhance the absorbed dose during radiation therapy. Subjects and Methods: We evaluated the samarium-153 (Sm-153) radiopharmaceutical and Au-197 and Sm-153 radiopharmaceutical absorbed dose rate by means of the Monte Carlo technique in prostate cancer. Results: The results show that absorbed dose rate in entire prostate volume due to 20 mCi of Sm-153 radiopharmaceutical is 27.339 μGy/s, 48.837 μGy/s, and 76.176 μGy/s for γ-interaction, β⁻ particle interaction, and γ+β⁻ interaction, respectively. The results in the exterior of the prostate for β⁻ interaction, β⁻ particle interaction, and γ+β⁻ interaction were 20.971 μGy/s, 1.110 μGy/s, and 22.081 μGy/s, respectively. Conclusions: The calculation results for Au-197 and Sm-153 radiopharmaceutical show that the absorbed dose rate in entire prostate volume 3% was increased and undesirable dose value in exterior of prostate 7% was decreased.