We studied solution-processed amorphous indium–zinc–tin oxide (a-IZTO) thin-film transistors (TFTs) with spin-coated zirconium oxide (ZrO x ) as the gate insulator. The ZrO x gate insulator was used without and with UV/O3 treatment. The TFTs with an untreated ZrO x gate dielectric showed a saturation mobility (μsat) of 0.91 ± 0.29 cm2 V−1 s−1, a threshold voltage (V th) of 0.28 ± 0.36 V, a subthreshold swing (SS) of 199 ± 37.17 mV/dec, and a current ratio (I ON/I OFF) of ∼107. The TFTs with a UV/O3-treated ZrO x gate insulator exhibited μsat of 2.65 ± 0.43 cm2 V−1 s−1, V th of 0.44 ± 0.35 V, SS of 133 ± 24.81 mV/dec, and I ON/I OFF of ∼108. Hysteresis was 0.32 V in the untreated TFTs and was eliminated by UV/O3 treatment. Also, the leakage current decreased significantly when the IZTO TFT was coated onto a UV/O3-treated ZrO x gate insulator.

Introduction: Coronavirus disease 2019 (COVID-19) vaccines protect against severe illness. However, data on post-vaccination COVID-19 breakthrough infections are limited.Methods: An analytical cross-sectional study was conducted from May 2021 to July 2021 among 2043 COVID-19-positive healthcare workers who were divided into a vaccinated group (n=1010) and an unvaccinated group (n=1033). A pre-tested questionnaire was circulated among the healthcare workers using Google Forms. Chest computed tomography (CT) severity score was the primary outcome variable analyzed using coGuide.Results: The average age of the study population was less than 45 years in both groups (43.05 ± 13.02 years). Most respondents (62%) were males. Hypertension (39%) and diabetes (33%) were the most common underlying diseases. Significant differences in age and cardiac disease were observed between the two groups (p = 0.07 and p <0.001, respectively). However, the difference was insignificant (p >0.05) for gender, hypertension, and diabetes. Most unvaccinated respondents had an increased CT severity score, and the difference between the studies groups was significant (p <0.001). Of the 1,010 vaccinated individuals, 382 (37.82%) received the only first vaccination dose, and 628 (62.18%) received both doses. The CT severity score decreased after receiving both vaccination doses, and the difference between CT severity score and vaccination status was significant (p <0.001).Conclusion: COVID-19 was mild in the vaccinated group. Chest CT severity score index can be considered an efficient tool in predicting prognosis and monitoring disease in patients with COVID-19 in India.

Background: Spinal trauma is associated with long-term disability. Early detection can lead to prompt and accurate diagnosis, expeditious management, and avoidance of unnecessary procedures. Magnetic resonance imaging (MRI) helps to accurately depict the presence and extent of spinal cord injury (SCI) in these patients. Purpose: This study was aimed to look for various MRI findings which are predictive of initial neurological deficit in patients with spinal trauma and to correlate the findings with resultant neurological outcome. Materials and Methods: The present study was conducted over a period of 18 months from January 2016 to June 2017 in 57 patients with spinal trauma who underwent MRI spine. Neurological status of patients was assessed at the time of admission and discharge in accordance with the American Spine Injury Association (ASIA) impairment scale. Various MRI parameters were evaluated for correlation with the severity of the spinal injury. Results: Patients with cord transection, cord hemorrhage, and epidural hematoma had initial high-grade ASIA impairment scale. Patients with cord transection and cord hemorrhage did not show any improvement in their neurological status during their hospital stay. Patients with only cord edema and epidural hematoma showed favorable neurological outcome. Cord contusion showed lesser neurological recovery, as compared with cord edema and normal cord. Conclusion: MRI findings in acute SCI correlated well with the initial neurological deficits on admission and at the time of discharge. MRI should be recommended in all patients with suspected spinal trauma both as a diagnostic and prognostic indicator.

Para oesophageal (type II) hiatus hernia is a rare anatomical condition and is differentiated from the more common sibling (type I) hiatus hernia. Patients with clinical symptoms associated with para oesophageal hiatus hernia should undergo operative repair as there is a risk of developing life threatening complications in these hernia. We report a case of symptomatic rolling hiatal hernia in a middle aged wom-an, who developed a life threatening volvulus resulting in cardiogenic shock. Keywords: Non reducible gastric fundal and part of the greater curvature hernia, rolling hiatus hernia, para oesophageal hernia