• Meredith Mahmoud posted an update 1 year, 6 months ago

    This paper presents the dataset of a survey on Vietnamese female students’ behavioral intention to use video conferencing tools (VCTs; e.g. 2′,3′,4′-trihydroxy flavone , Microsoft Teams or Google Hangout) in COVID-19 pandemic. The questionnaire was designed based on the Technology Acceptance Model according to the result of research conducted by [1] and [2]. The survey was conducted on an online platform using the questionnaire of 21 items to collect the information of respondents’ characteristics and their perception on computer self-efficacy, computer playfulness, COVID-19 context, behavioral intention to Use VCTs. The dataset contains 254 valid responses from female students who have been in distance learning in Vietnam. It can serve as a reference source for future studies on educational equity and for policy making on distance education.This work presents the data experimentally collected in a chemical laboratory for the calibration of a graduated cylinder. There are several factors that can influence the volume measurement using this type of instrument and, consequently, its metrological reliability, for example the internal geometry, the environmental conditions (ambient temperature, atmospheric pressure and relative humidity), the acceleration of gravity, the density of the air, among others. For the data collection it was necessary to use a glass liquid thermometer (Range 0-10 °C), a digital thermohygrometer (Range 0-100 °C and 0-99%RH) and a digital barometer (Range 0-9999 mbar). Additionally, an analytical scale (Range 0-220 g) was used for mass measurement. From the measurements obtained, it was possible to determine the in-situ air density and the buoyancy factor that influences the mass measurement. The data, rigorously obtained, present a potential use to determine the metrological reliability of a graduated cylinder for laboratory use and, additionally, contribute to perform a metrological validation of alternative methods for the calibration of graduated cylinder.Thirty-six anesthesia departments in 36 hospitals in four provinces of China where an outbreak of COVID-19 occurred were surveyed. We found that there were ten anesthesiologists (5 male and 5 female) who contracted the infection after performing intubation, as well as 4 nurses (1 male and 3 female) who contracted the infection after assisting with the intubation. This is a retrospective investigation and no intervention was applied. #link# The numbers are presented as mean ± Standard Deviation (SD). We used Graphpad Prism (version 8.2.1 Windows version, GraphPad Software, San Diego). Fisher’s exact test at a two-sided significance level of 0.05 was used to identify potential risk factor (s) for intubation providers. A P value less than 0.05 is considered statistically significant. A total of 211 anesthesiologists from four provinces were involved in the intubation of 664 patients with confirmed or potential COVID-19. Of these 644 patients, 640 cases were eventually confirmed with a diagnosis of COVID-19. Among the 211 anesthesiologists who performed intubation, 10 of them had a confirmed diagnosis of COVID-19 afterwards. Coughing is a risk factor for provider infection (P = 0.0001). The number of intubation attempts (within three attempts) did not increase the risk of the infection. All of the affected anesthesiologists had symptoms 2-12 days after the intubation encounter (average 6 ± 3 days). All had radiological image evidence of bilateral pneumonia and all reported relatively mild symptoms. The affected doctors were out of clinical service for 20-60 days (average 46 ± 12 days). Seven of the doctors have been discharged from the hospital, but three of them remain hospitalized. Four nurses who assisted with intubations contracted COVID-19. One of these nurses was in critical condition but was eventually discharged with a loss of 50 days of clinical service. The remaining three nurses have had mild symptoms so far, but one is still hospitalized.Since January 2020, the world is facing the COVID-19 pandemic caused by SARS-CoV-2. In a big effort to cope with this outbreak, two Uruguayan institutions, Institut Pasteur de Montevideo and Universidad de la República, have developed and implemented a diagnosis pipeline based on qRT-PCR using entirely local resources. In this context, we performed comparative quantitative proteomic analysis from oro- and naso-pharyngeal swabs used for diagnosis. Tryptic peptides obtained from five positive and five negative samples were analysed by nano-LC-MS/MS using a Q-Exactive Plus mass spectrometer. Data analysis was performed using PatternLab for Proteomics software. From all SARS-CoV-2 positive swabs we were able to detect peptides of the SARS-CoV-2 nucleoprotein that encapsulates and protect the RNA genome. Additionally, we detected an average of 1100 human proteins from each sample. The most abundant proteins exclusively detected in positive swabs were “Guanylate-binding protein 1”, “Tapasin” and “HLA class II histocompatibility antigen DR beta chain”. The biological processes overrepresented in infected host cells were “SRP-dependent cotranslational protein targeting to membrane”, “nuclear-transcribed mRNA catabolic process, nonsense-mediated decay”, “viral transcription” and “translational initiation”. Data is available via ProteomeXchange with identifier PXD020394. We expect that this data can contribute to the future development of mass spectrometry based approaches for COVID-19 diagnosis. Also, we share this preliminary proteomic characterization concerning the host response to infection for its reuse in basic investigation.With the emergence of the coronavirus disease (COVID-19), it is essential that face masks demonstrating significant anti-droplet and hydrophobic characteristics are developed and distributed. In this study, a commercial compressed-polyurethane (C-PU) mask was modified by applying a hydrophobic and anti-droplet coating using a silica sol, which was formed by the hydrolysis of tetraethoxysilane (TEOS) under alkaline conditions and hydrolyzed hexadecyltrimethoxysilane (HDTMS) to achieve hydrophobization. The modified mask (C-PU/Si/HDTMS) demonstrated good water repellency resulting in high water contact angle (132°) and low sliding angle (17°). Unmodified and modified masks were characterized using attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). A drainage test confirmed the strong interaction between the mask surface and coating. Moreover, the coating had negligible effect on the average pore size of the C-PU mask, which retained its high breathability after modification.

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