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Öğe Galactocele: A rare cause of breast enlargement in an infant(Lippincott Williams & Wilkins, 2001) Saray, A.; Aydin, O.; Özer, C.; Tamer, L.…Öğe Relationship between IIEF score, erection hardness score and beck depression index in the evaluation of erectile dysfunction(Blackwell Publishing, 2008) Tuncel, A.; Atan, A.; Tuglu, D.; Aydin, O.; Sipal, T.; Basar, M.…Öğe Ruptured cystic teratoma associated with mucinous cystadenoma in a pregnant woman(Wolters Kluwer Medknow Publications, 2019) Aydin, O.; Pehlivanli, F.; Karaca, G.; Aydin, G.; Sayan, C. D.; Atasoy, P.; Daphan, C. E.Mature cystic teratoma is the most common ovarian neoplasm. However, mucinous cystadenoma with teratoma has been very rarely reported in literature. This case report, which is very rare, describes a clinical entity not previously reported in literature. A 34-year-old pregnant woman presented in the 23rd gestational week with severe right lower quadrant pain. She was diagnosed with acute abdomen and was then treated surgically. During the surgical intervention, a spontaneously ruptured mass was detected in the right ovary. This was reported histopathologically as a mature cystic teratoma in collision with mucinous cystadenoma. To the best of our knowledge, this case report is the first to have identified a ruptured mature cystic teratoma in collision with mucinous cystadenoma in a pregnant woman.Öğe Solving the Optimal Power Flow Quadratic Cost Functions using Vortex Search Algorithm(Elsevier Science Bv, 2017) Aydin, O.; Tezcan, S. S.; Eke, I; Taplamacioglu, M. C.This study proposes solving the constraint optimal power flow problem (OPF) by using vortex search algorithm (VSA). VSA is inspired by natural vortexes. Piecewise quadratic fuel cost and quadratic cost curve with valve point loadings test cases are solved on IEEE-30 bus test system by taking into consideration the system constraints such as generation limits, voltages at nodes, tap settings. The obtained test results show that VSA gives better results than any other algorithms which are used to solve the OPF problem. (C) 2017, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.