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51st International Congress and Exposition on Noise Control Engineering, Internoise 2022 ; 2022.
Article in English | Scopus | ID: covidwho-2275683
European Review for Medical and Pharmacological Sciences ; 27(1):404-410, 2023.
Article in English | Web of Science | ID: covidwho-2245370
J Hosp Infect ; 131: 12-22, 2022 Sep 30.
Article in English | MEDLINE | ID: covidwho-2242551


BACKGROUND: Disinfection is one of the most effective ways to block the rapid transmission of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Due to the prolonged coronavirus disease 2019 (COVID-19) pandemic, disinfectants have become crucial to prevent person-to-person transmission and decontaminate hands, clothes, facilities and equipment. However, there is a lack of accurate information on the virucidal activity of commercial disinfectants. AIM: To evaluate the virucidal efficacy of 72 commercially available disinfectants constituting 16 types of ingredients against SARS-CoV-2. METHODS: SARS-CoV-2 was tested with various concentrations of disinfectants at indicated exposure time points as recommended by the manufacturers. The 50% tissue culture infectious dose assay was used to calculate virus titre, and trypan blue staining and CCK-8 were used to assess cell viability after 3-5 days of SARS-CoV-2 infection. FINDINGS: This study found that disinfectants based on 83% ethanol, 60% propanol/ethanol, 0.00108-0.0011% sodium dichloroisocyanurate and 0.497% potassium peroxymonosulfate inactivated SARS-CoV-2 effectively and safely. Although disinfectants based on 0.05-0.4% benzalkonium chloride (BAC), 0.02-0.07% quaternary ammonium compound (QAC; 1:1), 0.4% BAC/didecyldimethylammonium chloride (DDAC), 0.28% benzethonium chloride concentrate/2-propanol, 0.0205-0.14% DDAC/polyhexamethylene biguanide hydrochloride (PHMB) and 0.5% hydrogen peroxide inactivated SARS-CoV-2 effectively, they exhibited cytotoxicity. Conversely, disinfectants based on 0.04-4% QAC (2:3), 0.00625% BAC/DDAC/PHMB, and 0.0205-0.14% and 0.0173% peracetic acid showed approximately 50% virucidal efficacy with no cytotoxicity. Citric acid (0.4%) did not inactivate SARS-CoV-2. CONCLUSION: These results indicate that most commercially available disinfectants exert a disinfectant effect against SARS-CoV-2. However, re-evaluation of the effective concentration and exposure time of certain disinfectants is needed, especially citric acid and peracetic acid.

English Teaching(South Korea) ; 77(4):177-208, 2022.
Article in Korean | Scopus | ID: covidwho-2231923


In this study, we applied a model of process-oriented English assessments to primary school students during the COVID-19 pandemic and explored how they perceived it. A series of flexible process-oriented assessments were conducted in the first semester of 2022. A survey was administered to 190 fifth-grade students at the end of the semester. The data were analyzed both quantitatively and qualitatively. The respondents were classified into three categories according to their self-rated English levels. The results show that the students appreciated the assessments, and they highly valued the teacher's feedback. Various opinions were presented on providing opportunities for re-testing, reporting results to parents, writing peer reviews in school records, and mental pressures. The process-oriented assessments were found to be conducive for the majority of the young English learners, although some students from the lower group seemed to have experienced a psychological burden. Based on the findings, suggestions are made for educators in the post-pandemic era. © 2022 The Korea Association of Teachers of English (KATE)

Eur Rev Med Pharmacol Sci ; 27(1): 404-410, 2023 01.
Article in English | MEDLINE | ID: covidwho-2205453


OBJECTIVE: To perform a systematic review of case reports or case series regarding thrombosis with thrombocytopenia syndrome (TTS) and cerebral venous thrombosis (CVT) related to ChAdOx1 nCoV-19 vaccination to address the clinical features, laboratory findings, treatment modalities, and prognosis related with CVT. SUBJECTS AND METHODS: We included 64 TTS patients from 19 articles, 6 case series and 13 case reports, in which thrombosis occurred after the first dose of ChAdOx1 nCoV-19 vaccination published up to 30 June 2021 in Embase, ePubs, Medline/PubMed, Scopus, and Web of Science databases. RESULTS: Of the 64 TTS patients, 38 (59.3%) had CVT. Patients with CVT were younger (median 36.5 vs. 52.5 years, p<0.001), had lower fibrinogen levels (130 vs. 245 mg/dL, p=0.008), had more frequent history of intracerebral hemorrhage (ICH), and had higher mortality rate (48.6% vs. 19.2%, p=0.020) than that of patients without CVT. In multivariable analysis, the possibility of presence of CVT was higher in younger age groups [odd ratio (OR): 0.91, 95% confidence interval (CI): (0.86-0.97, p<0.001)] and those with accompanying intracerebral hemorrhage (ICH) (OR: 13.60, 95% CI (1.28-144.12, p=0.045). CONCLUSIONS: Our study demonstrated that CVT related to ChAdOx1 nCoV-19 vaccination was associated with younger age, low levels of fibrinogen, presence of ICH and more frequent mortality compared to those of non-CVT. If TTS occurs after ChAdOx1 nCoV-19 vaccination, the presence of CVT in patients with young age or ICH should be considered.

ChAdOx1 nCoV-19 , Intracranial Thrombosis , Venous Thrombosis , Humans , Cerebral Hemorrhage/complications , ChAdOx1 nCoV-19/adverse effects , Fibrinogen , Intracranial Thrombosis/chemically induced , Risk Factors , Vaccination/adverse effects , Venous Thrombosis/chemically induced
Nursing Research ; 71(3):S65-S65, 2022.
Article in English | Web of Science | ID: covidwho-1866111
4th International Workshop on Predictive Intelligence in Medicine, PRIME 2021, held in conjunction with 24th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2021 ; 12928 LNCS:37-46, 2021.
Article in English | Scopus | ID: covidwho-1473938