Incidental Findings of COVID-19 Pneumonia in Chest CT scan of Trauma Patients; a Case Series

Introduction: COVID-19 is an infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a strain of coronavirus. The first cases were reported in Wuhan, China, in December 2019, later was officially recognized as a pandemic on March 11th, 2020. Case presentation: Here we report five trauma cases admitted to our hospital, not for COVID-19 related symptoms, but chest computed tomography (CT) scan findings were suspicious of COVID-19 infection. Real-time reverse-transcription polymerase chain reaction (RT-PCR) assays for COVID-19 were reported as positive in these cases. Conclusion: COVID-19 usually manifests with mild respiratory and constitutional symptoms, even some cases are asymptomatic

Incidental Findings of COVID-19 Pneumonia in Chest CT scan of Trauma Patients; a Case Series

Introduction: COVID-19 is an infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a strain of coronavirus. The first cases were reported in Wuhan, China, in December 2019, later was officially recognized as a pandemic on March 11th, 2020. Case presentation: Here we report five trauma cases admitted to our hospital, not for COVID-19 related symptoms, but chest computed tomography (CT) scan findings were suspicious of COVID-19 infection. Real-time reverse-transcription polymerase chain reaction (RT-PCR) assays for COVID-19 were reported as positive in these cases. Conclusion: COVID-19 usually manifests with mild respiratory and constitutional symptoms, even some cases are asymptomatic

Analysis of "Lā ̕qsem-o" Structure in Quran English Translations Based on House Textual Equivalence Theory

There are various emphatic devices in the holy Qur'an, like oath that used in various forms. "Lā ̕qsem-o" is the most controversial structure. Study of this structure as a syntactic- emphatic device in Qur'an translation reveals their unbalanced equivalents based on existing theories of translation science. Because of the position of this structure in source language, its assessment based on House Textual Theory can lead to their precise translation. The most likely chosen interpretional theories by most of translators are considering "Lā" as additional letter and "̕qsem-o" as oath or the whole of "Lā ̕qsem-o" structure as one of oath methods. In real the equivalents of most of translators is according to these interpretional theories. As general, despite lexical balance, the major imperfection and weakness of majority of translators equivalents with various interpretational attitude is unbalanced grammar translation of "Lā ̕qsem-o" i.e. not finding emphatic equivalent to "̕qsem-o" itself. Though felicitous miracle of the Qur'an, linguistics differentiates and the translator role, himself, have effective role about balanced or unbalanced translation of this structure, but based on linguistic position of this structure in source language, it is possible to translate this structure, equivalent by using House overt translation method and "I do swear by"

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

Funding Information: We thank the University of Zanjan for financial supports. Publisher Copyright: © 2021, Indian Academy of Sciences. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.In this article, the wettability of a superhydrophobic layer from rubber-modified TiO2/SiO2 nanocomposite is studied. The nanocomposites were prepared with various ratios of TiO2 and SiO2 nanoparticles (NPs) and then studied the effect of annealing, UV irradiation and aging after coating on a substrate. Results show that the average contact angle of deionized water droplets on the most hydrophobic coating is 129.5°, which increases up to 151.0° by UV irradiation. In addition, the lowest surface energy of the prepared layers was measured as 29.61 mJ m–2. The hydrophobicity of the coating surface was investigated after annealing (at temperatures up to 300°C), and results show that the maximum contact angle is about 150°. The dynamics of water droplets on the most hydrophobic coating were investigated by rapid imaging, and results show no hysteresis for surface wetting. Fourier transform infrared spectroscopy shows that UV irradiation causes the formation of C–H functional groups on the surface without considerable change in the hydrophobicity, while the annealing process has no significant effects on the functional groups. The morphology of the coatings was investigated by scanning electron microscopy, and results reveal that the roughness of surfaces increases due to annealing and UV radiation. In addition, a minimum increase in the roughness coefficient is estimated as 73% of the initial value after annealing, which is in agreement with atomic force microscopy results.Peer reviewe

Humidifying, heating and trap-density effects on triple-cation perovskite solar cells

Abstract The effect of moisture and heat are important challenges in perovskite solar cells (PSCs). Herein we studied the performance of triple-cation PSCs in different operating environmental conditions. Humidified cells exhibited a hopeful character by increasing the open-circuit voltage (V OC ) and short-circuit current density (J SC ) to 940 mV and 22.85 mA cm−2 with a power conversion efficiency (PCE) of 14.34%. In addition, further analyses showed that hysteresis index and charge transfer resistance decrease down to 0.4% and 1.67 kΩ. The origin of superior stability is ion segregation to the interface, which removes the antisite defect states. Finally, the effect of operating temperature and trap density on structure and performance was also studied systematically