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  • Küçük Resim
    Öğe
    Clinical and histopathological analysis of 1694 cases diagnosed with endometrial polyps based on endometrial sampling
    (2019) Sahin, Nurhan; Coban, Ganime; Sezal, Zeynep; Kilic, Gokhan; Cali, Halime; Arici, Dilek Sema
    Aim: All the patients presented to gynecology polyclinics with abnormal uterine bleeding either during the reproductive or the peri/ postmenopausal period underwent endometrial sampling to exclude endometrial pathologies. One endometrial pathology frequently encountered in the histopathological examination of these samples is Endometrial Polyp (EP); and it is important that they are recognized as they require a distinct treatment plan and can be associated with endometrial malignancies. Material and Methods: In this study, we investigated the demographic and clinical findings and concomitant malignancies of the cases diagnosed with endometrial polyps based on endometrial biopsy samples at Bezmialem Vakif University over a period of 7 years and compared our results with those in the literature. Results: Our study determined an EP prevalence of 19% and only 11 (0.65%) of the 1694 cases were found to have “adenocarcinomas” within/outside the polyp. Conclusion: Considering that EPs may be associated with malignancies, histopathological examination must absolutely be performed with adequate sampling.
  • Küçük Resim Yok
    Öğe
    Investigation on the transport and magnetism properties of the boron-substituted NiMnSb
    (Springer, 2023) Kilic, Gokhan; Abboosh, Omar; Kirat, Gokhan; Aksan, Mehmet Ali; Aydogdu, Ayse; Aydogdu, Yildirim
    We fabricated Ni46Mn41Sb13-xBx (x = 0, 1, 2, 3 and 4) (at.%) Heusler alloys using arc melting method and studied the electronic and magnetic properties of the alloys. It was seen that the martensite transformation temperatures shifted to higher temperatures with increasing the B-content in the system. It was found that for x less than 2, the alloys were in the austenite phase at the room temperature. However, when x is larger than 2, the crystal structure changed and a transformation to a martensite phase has occurred at room temperature. There were significant changes in lattice constants by boron substitution, which influenced the electrical and magnetic properties of the alloys. These changes are mainly related to the different atomic radius of Sb and B, which changed the atomic arrangement along a-axis. Hysteresis observed between the heating and cooling M-T curves obviously showed a field-induced martensitic transformation (FIMT) in the alloys. While the characteristic magnetization behavior of NiMnSb system was obtained at high magnetic fields, unstable magnetic behavior was observed at low magnetic fields. The boron substitution caused decrease in magnitude of the saturation magnetization (M-sat).