Background: The purpose of this study is to retrospectively compare annual changes (between 2019 and 2022 years) in selected hematological parameters in radiology workers during the COVİD-19 pandemic. Material and Methods: A total of sixteen radiology unit workers, seven male and nine female, aged 18-40 years, working in Ataturk University Faculty ...

In this study, the effects of high-energy X-ray irradiation on the electrical characteristics of Au/LiF/p-Si/Al barrier diodes were investigated. The device structure was obtained by inserting a thin lithium fluoride (LiF) interfacial layer between gold (Au) and p-type silicon (p-Si) using the thermal evaporation method. The current–voltage (I–V) characteristics of the fabricated diodes were measured under dark conditions at room temperature (300 K). The samples were exposed to X-ray radiation doses of 0 Gy (before irradiation), 25, 50, and 75 Gy, and the variations in the main diode parameters, namely the ideality factor (n), barrier height (Φb), and series resistance (Rs), were analyzed. The electrical parameters were calculated using the thermionic emission (TE) theory, and a detailed analysis was also performed using the Cheung and Norde methods. For the Au/LiF/p-Si/Al device, the ideality factor and barrier height using TE were calculated as 1.22 and 0.64 eV, respectively, before irradiation. At 25 Gy, the ideality factor and barrier height of the device were found to be 1.29 and 0.68 eV, respectively, while at 75 Gy, these values changed to 1.76 and 0.82 eV, respectively. Similar behavior has been observed in calculations using other methods. The obtained results indicated that irradiation significantly affects the diode behavior. Deviations from ideal behavior were observed with increasing radiation dose, which were attributed to radiation-induced defects and interface states.

Objective This study was conducted to investigate the possible effects of curative radiochemotherapy on muscle oxygen saturation dynamics with moxy oxygen monitor in individuals with locally advanced lung cancer. Materials and Methods The study was conducted prospectively at Atatürk University Sports Sciences Application and Research Center. From the cases with locally advanced lung cancer in the Radiation Oncology Clinic of Erzurum Regional Training and Research Hospital, It was conducted with male patients aged 30–70 years diagnosed with locally advanced lung cancer. Before and after curative radiochemotherapy, patients were walked on a treadmill for 10 minutes by the low-intensity acute aerobic walking exercise protocol and with a Moxy monitor device, muscle oxygen saturation and total hemoglobin levels were monitored in the rectus femoris muscle with near-infrared spectroscopy both during and after the test. The analysis of the data obtained from the research was made in the SPSS 26.0 (SPSS, Inc., Chicago, IL, USA) program. Results According to the findings of the study, Sig. Although there was no significant difference since the (2-tailed) values were higher than 0.05, it was determined that the participants' right and left leg total hemoglobin values increased after curative radiochemotherapy application. Conclusion Curative radiochemotherapy showed a curative effect on muscle oxygen saturation and total hemoglobin.