Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 7 de 7
Filter
1.
NeuroQuantology ; 20(11):3306-3318, 2022.
Article in English | EMBASE | ID: covidwho-2067339

ABSTRACT

Online learning is the solution chosen to avoid crowds, which are feared to lead to the new cluster of the Covid-19 pandemic. It's just that online learning is often followed by a different process of teacher interaction in online learning.This study is intended to describe teacher interactions in online learning during the pandemic between teacher and student perspectives.The research approach is quantitative with the type of comparative research, through random sampling, namely on respondents who are in teacher and student social media forums, from January to March in 2021.The results of data collection obtained 789 teachers and 910 student respondents. The data collection instrument used a closed questionnaire.The results showed interaction of teachers providing online learning during the pandemic at all levels of education is significantly different andthere is a significant difference between a teacher and student learning interactions, at the level of achievement of teacher and student respondents at certain times/times both have had online learning interactions during the pandemic. For teachers the average value is 2.55 with a percentage of 56.1%, for students, the average value is 2.55 with a percentage of 63.9%. The researcher recommends that it is necessary to reflect and evaluate teacher interactions in online learning. Copyright © 2022, Anka Publishers. All rights reserved.

2.
NeuroQuantology ; 20(11):2126-2139, 2022.
Article in English | EMBASE | ID: covidwho-2067335

ABSTRACT

Online learning is the solution chosen to avoid crowds, which are feared to lead to the new cluster of the Covid-19 pandemic. It's just that online learning is often followed by a different process of teacher interaction in online learning.This study is intended to describe teacher interactions in online learning during the pandemic between teacher and student perspectives.The research approach is quantitative with the type of comparative research, through random sampling, namely on respondents who are in teacher and student social media forums, from January to March in 2021.The results of data collection obtained 789 teachers and 910 student respondents. The data collection instrument used a closed questionnaire.The results showed interaction of teachers providing online learning during the pandemic at all levels of education is significantly different andthere is a significant difference between a teacher and student learning interactions, at the level of achievement of teacher and student respondents at certain times/times both have had online learning interactions during the pandemic. For teachers the average value is 2.55 with a percentage of 56.1%, for students, the average value is 2.55 with a percentage of 63.9%. The researcher recommends that it is necessary to reflect and evaluate teacher interactions in online learning.

3.
American Journal of Respiratory and Critical Care Medicine ; 205(1), 2022.
Article in English | EMBASE | ID: covidwho-1927821

ABSTRACT

Introduction: Pulmonary Hamartomas are the most common benign tumors of lungs. Hamartomas are usually asymptomatic and are incidentally diagnosed on chest imaging. Symptomatic cases usually involve endobronchial mucosa. We describe a case of a symptomatic patient who was noted to have a right upper lobe collapse by an endobronchial lesion. This lesion was confirmed to be a cartilaginous hamartoma and was definitively treated by electrosurgical by Argon plasma (APC). Description: A 37 year old obese male active smoker presented to the ER for worsening Shortness of air (SOA) for two weeks. He had dry cough for similar duration without any fevers. On physical examination he was afebrile with normal vital signs but without hypoxia and otherwise normal physical examination. Labs revealed normal white cell count. A COVID test was negative. CT chest showed an endobronchial lesion obstructing the right upper lobe (RUL) with some internal fat density measuring at least 1.5cm causing complete collapse of RUL. No mediastinal or hilar adenopathy was noted. A flexible bronchoscopy showed a pedunculated smooth lesion arising from RUL bronchus anteriorly occluding the RUL bronchus. FNA of the lesion did not show any malignant cells. Using electrosurgery by APC the lesion was removed en bloc. A histopathology showed findings of cartilaginous hamartoma. A follow up Chest X-ray showed improvement in RUL atelectasis. Discussion: Pulmonary hamartomas are the most common benign pulmonary tumors and comprise 6% of solitary pulmonary nodules. Mostly detected on chest imaging as an incidental finding however CT chest has characteristic finding of pop corn shaped calcifications, fat density. Symptomatic cases are usually endobronchial and can be definitively treated with endoscopic techniques.

4.
Nanosystems-Physics Chemistry Mathematics ; 12(5):575-582, 2021.
Article in English | Web of Science | ID: covidwho-1513287

ABSTRACT

The transmission of SARS-CoV-2, the novel severe acute respiratory syndrome corona virus have caused the corona virus disease (Covid-19) worldwide pandemic. Overcoming this pandemic requires identifying patients to avoid further spread of the disease. Real-time, sensitive, and cost-efficient methods for detecting the COVID-19 virus are crucial. Optical sensors provide one such means to achieve this, especially using surface plasmon resonance due to its advantages such as high sensitivity and excellent detection limits. In this paper, we propose a sensor for COVID-19 detection which is based on a simple Kretschmann configuration with gold layers and thiol-tethered DNA for the ligand layer. Angle interrogation was used to obtain the sensitivity of this structure using Matlab numerical analysis. The performance of the sensor was investigated with two types of prisms, SF10 and SF11, while varying the gold layer thickness between 45 - 60 nm. This information was then used to determine which combination of prism and gold thickness are ideal for detecting COVID-19 using thiol-tethered DNA. Thiol-tethered DNA layer sensor showed the highest sensitivity of 137 degree/RIU when a SF10 prism was used with a 50 - 60 nm gold layer and thiol tethered DNA layer.

5.
The Egyptian journal of immunology ; 28(3):157-167, 2021.
Article in English | Scopus | ID: covidwho-1441783

ABSTRACT

NK group 2 member A (NKG2A) receptor transduces inhibitory signaling;suppressing NK and T-cell cytokine secretion and cytotoxic function. This study aimed to assess the expression of NKG2A inhibitory receptor on natural killer (NK) cells and CD8+ T lymphocytes in COVID-19 patients and correlate the results with disease severity defined according to the criteria established by the world health organization, in a trial to understand the immunological response towards COVID-19 infection. The study enrolled 30 COVID-19 patients classified into 2 groups that comprised 15 subjects each;moderate and severe based on clinical, radiological, and laboratory findings. Ten age and sex matched apparently healthy individuals were included in this study as a control group. About 1 ml EDTA anti-coagulated blood samples were collected for measuring expression of NKG2A/CD159a on CD56+ CD3- NK and CD3+CD8+ T cells by flow cytometry. Results revealed that COVID-19 patients had significantly lower NK and CD8+ T cell counts compared to healthy subjects. Severe cases had significantly lower CD8+ T counts compared to moderate ones. Percentages of NK and CD8+T cells expressing NKG2A receptor were significantly higher in cases compared to controls. Comparison between severe and moderate cases revealed that although the percentages of NK cells expressing NKG2A receptor were not significantly higher in severe cases, the mean fluorescence intensity was significantly higher. The percentages of CD8 +T cells expressing NKG2A receptor were significantly higher in severe cases with higher mean fluorescence intensity. In conclusion, our results indicate that elevated NKG2A expression on cytotoxic lymphocytes correlates with disease severity in COVID-19 patients, and may serve as a potential marker for prognosis. Additionally, the blockade of NKG2A should be investigated as means of enhancing NK cell and cytotoxic T cells antiviral immunity in patients with severe COVID-19 infection. Copyright© by the Egyptian Association of Immunologists.

6.
Proc. - Int. Conf. Educ. Technol., ICET ; : 152-159, 2020.
Article in English | Scopus | ID: covidwho-1028421

ABSTRACT

The COVID-19 pandemic brings adaptation to learning that is done online. The class that has students with and without disabilities in the special education department requires learning readiness to face e-learning. This study measures factors, including technology, people, content, and self-development. This research's indicators are hardware software, network, perception, psychological, content relevance, assessment, ability, and innovation. This research method applies a quantitative descriptive. The sample in this study consisted of 72 students without disabilities and 12 students with disabilities). Overall results obtained data for all indicators is 3.7 from the 5 Aydin Tasci scale. Thus, students are ready for e-learning but need a few improvements. E-learning that involves students with and without disabilities requires accessibility and modification of group learning activities. Specifically, students with disabilities get 3.14, indicating they are at the stage of not ready and need some work. © 2020 IEEE.

7.
European Journal of Molecular and Clinical Medicine ; 7(2):5820-5832, 2020.
Article in English | Scopus | ID: covidwho-1001005

ABSTRACT

The spreading of pandemic COVID-19 worldwide has change the way of life today.Since WHO announce COVID-19 as a pandemic, nearly all countries in the world also declare lockdown to stop the spreading.In Malaysia, the government announced Movement Control Order(MCO) whichrequiring closure of all businesses except those providing essential services and items. This resulting, most business operations change to Working From Home (WFH). This paper aim to identify the determinant for WFH facilities during the MCO in Malaysia. The scope of this study pertains to the Malaysian citizens. The methodology employed in this research was cross-sectional by employingsimple random sampling technique to achieve the required minimum sample size. Data collected were analysed using Statistical Package for the Social Sciences (SPSS) 26 version. A total of 500 questionnaires was distributed via a web-based self-administered questionnaire using Google Forms survey. Out of 500 questionnaires distributed, only 363 sets were replied and completed. This clearly shows the response rate is 73%, which is considered high responses.The findings of the study show that Work-related Family (WF) scored high eigenvalue (11.248) and total variance (33.081%) in this study. The result shows that there are six group could explain 65% for all items in this research. The total of 34 items was grouped together into six determinant factors named Work-family Related (WF);Organisational Support (OS);Working Culture (WC);Job Autonomy (JA);Modern Technology (MT);and Social Media (SM). © 2020 Ubiquity Press. All rights reserved.

SELECTION OF CITATIONS
SEARCH DETAIL