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1.
Cyberpsychol Behav Soc Netw ; 25(9):561-570, 2022.
Article in English | PubMed | ID: covidwho-2028987

ABSTRACT

This study aims to unveil how COVID-19 affected the experience of stress by focusing on the stressors. Using computational analysis based on a newly developed stressor identification model, we compared the experience of stress expressed by Korean Twitter users before and during the pandemic in terms of (1) the stressors as the source of stress and (2) emotion as the manifestation of stress. Both tweet-level (N = 202,556) and user-level (N = 24,803) analyses revealed that social factors are prevalent sources of stress both before and during the pandemic. Moreover, social stressors increased the most during the pandemic. While stress from social stressors was manifested mainly as sadness before the pandemic, anger became the predominant emotional manifestation during the pandemic. Public health policies and educators should consider social stressors as the predominant source of stress during the pandemic and seek ways to prepare the public better for such threats.

2.
ICIC Express Letters, Part B: Applications ; 13(10):1037-1044, 2022.
Article in English | Scopus | ID: covidwho-2026311

ABSTRACT

With the widespread of COVID-19 pandemic globally, education environment has been changed from face-to-face to online education with physical distance. The classroom could be moved anywhere from the brick building to ubiquitous place and mobile tools with virtual and augmented reality. The metaverse allows students to fashion a world where they can interact as avatars or digital characters while participating in a host of activities. This paper tries to find the feasibility of applying the metaverse platform in college education in the pandemic environment. A thorough review has been attempted for the state of the art of educational metaverse. Based on the research framework of metaverse platform, two types of implementation have been attempted. The first one is hardware-based extended reality studio for media and broadcasting. The second one is software-based virtual and augmented reality. Using Zepeto, a metaverse classroom is created, and actual activities for teaching and learning have been tried among classroom avatars. By using the metaverse platform in the online education, student’s satisfaction has been increased through active interaction and communication via avatars. © 2022, ICIC International. All rights reserved.

3.
Acta Haematol ; 2022.
Article in English | PubMed | ID: covidwho-2020588

ABSTRACT

Hemophagocytic lymphohistiocytosis (HLH) is a rare, severe hyperinflammatory disease characterized by overproduction of cytokines and hemophagocytosis of hematopoietic cells, resulting in multiorgan failure. Prompt treatment initiation is essential for patient survival. The coronavirus disease 2019 (COVID-19) pandemic has led to the rapid development of several vaccines, including BNT162b2 by Pfizer-BioNTech. Few cases of immune-mediated complications of COVID-19 and its vaccines have been reported, characterized by persistent stimulation of the immune system, resembling HLH. We report the case of a 21-year-old man with secondary HLH following a second dose of the BNT162b2 vaccine. The patient did not have primary HLH or other contributors to secondary HLH and met the HLH-2004 diagnostic criteria. He was safely treated with steroid pulse therapy alone, without etoposide, cyclosporin, or immunoglobulins, which are recommended for pediatric patients. Physicians need to be aware of such severe complications following a second dose of the COVID-19 vaccine.

4.
Psychiatry Investigation ; 19(8):637-645, 2022.
Article in English | EMBASE | ID: covidwho-2010594

ABSTRACT

Objective This study aimed to investigate the association of sleep with mental health among Korean adolescents during the coronavi-rus disease (COVID-19) pandemic. Methods Using data from the 16th Korea Youth Risk Behavior Web-Based Survey (2020) of 46,475 adolescents, we examined sleep duration and satisfaction and examined mental health for depressive symptoms, anxiety, and suicidal ideation. The data were analyzed using complex sample descriptive statistics and a multiple logistic regression model. Results In 2020, the average sleep duration was 6.3 hours, and the sleep satisfaction rate was 30.8%. Depressive symptom and suicidal ideation rates were 24.2 and 10.3, respectively. These values are slightly better than those previously reported, before COVID-19. How-ever, poor sleep was still associated with mental health. The likelihood of mental health problems was higher among those who slept for six hours or less than for those who slept for eight hours or more (p<0.05). Additionally, the results showed that the lower the sleep satis-faction, the higher the likelihood of mental health problems (p<0.05). Conclusion Even after the COVID-19 outbreak, poor sleep associated with mental health problems remained as high as before the outbreak of COVID-19.

5.
Journal of Web Engineering ; 21(5):1419-1433, 2022.
Article in English | Web of Science | ID: covidwho-1998051

ABSTRACT

To fix network congestion resulting from the increase in high volume traffic in data-intensive science and the increase in internet traffic due to COVID19, there has been a necessity of traffic engineering through traffic prediction. For this, there have been various attempts from a statistical method such as ARIMA to machine learning including LSTM and GRU. This study aimed to collect and learn KREOENT backbone and subscribers' traffic volume through diverse machine learning techniques (e.g., SVR, LSTM, GRU, etc.) and predict maximum traffic on the following day.

6.
International Journal of Kinesiology and Sports Science ; 10(2):34-41, 2022.
Article in English | Scopus | ID: covidwho-1964560

ABSTRACT

Background: It is less known how the constraints placed upon public spaces and social interaction have impacted college students’ motivation to be physically active. Objective: This study examined, first, the changes in college students’ body mass index (BMI), physical activity (PA), and self-determined motivation before and during the COVID-19 third-wave lockdown and, second, the role of moderate-to-vigorous PA (MVPA) and self-determined motivation on BMI during the lockdown. Method: This study was a longitudinal prospective study with two data collection phases. A sample of 104 college students (69 females, 35 males, Mage = 18.19[1.5]) completing both pre- and posttest data turned in self-report data on BMI, PA (vigorous PA - VPA, moderate PA - MPA), MVPA, and self-determined motivation. Results: The results showed a statistically significant increase in participants’ BMI (t[79] = 4.70[2.98], p =.001, d =.11) but no statistically significant changes in PA. The findings demonstrated changes in college students’ integrated regulation (↓;t[78]= -3.20[.16], p =.002, d =.35), identified regulation (↓;t[76] = -4.07[.16], p <.001, d =.52), extrinsic regulation (↑;t[78] = 2.28[1.80], p =.025, d =.02), and amotivation (↑;t[78] = 4.42[1.21], p <.001, d =.48). Finally, neither PA nor self-determined motivation played a role in BMI, but the previous MVPA and BMI did. Conclusion: This study suggests that COVID-19 had a negative impact on self-determined motivation decreasing adaptive and increasing maladaptive motivation. However, neither MVPA nor self-determined motivation played a role in BMI during the COVID-19 lockdown. Instead, pre-COVID BMI (large effect) and MVPA (small effect) determined students’ BMI during the lockdown. Copyright (c) the author(s).

7.
Journal of Product and Brand Management ; 2022.
Article in English | Scopus | ID: covidwho-1948692

ABSTRACT

Purpose: This research aims to understand consumer responses to corporate social responsibility (CSR) during an unprecedented public health crisis. Specifically, two studies were conducted to investigate how companies’ different CSR initiatives in the early stage of COVID-19 would influence consumers’ advocacy intention according to their focus (i.e. targets of institutional CSR). The first study examined the moderating role of individuals’ CSR expectancy on the effects of companies’ CSR initiatives on consumers’ brand advocacy intention. The second study further extends the findings of Study 1 by examining the mediating role of perceived brand motive. Design/methodology/approach: Two between-subject online experiments were conducted to explore the impact of three types of institutional CSR initiatives (i.e. community, employee and consumer-centered CSRs) on brand advocacy. Study 1 (N = 380) examined the moderating role of CSR expectancy in influencing consumer responses to institutional CSR initiatives. Study 2 (N = 384) explored the underlying mechanism through examining the mediating role of a company’s value-driven motivation in the process. Findings: Study 1 indicated that institutional CSR, regardless of type, was more effective in generating a more significant brand advocacy intention than a promotional message, measured as a baseline. The impact of different kinds of institutional CSR on consumers’ brand advocacy intentions was significantly moderated by their CSR-related expectations. Specifically, individuals with moderate to high CSR expectancy showed higher brand advocacy intentions in both consumer- and employee-centered CSR initiatives than the promotional message. In comparison, those with low CSR expectancy only showed higher brand advocacy intentions in the community-centered CSR initiative. In addition, as individuals’ CSR expectations rose, the mediation effect of the perceived value-driven motivation became stronger. Research limitations/implications: The current study includes guiding principles to help companies effectively respond to COVID-19 as corporate citizens by demonstrating the importance of individuals’ CSR expectancy across three CSR initiatives. This study used real-life examples of how leading companies were stepping up CSR efforts and suggested an approach that aligns CSR behaviors with the urgent and fundamental human needs of COVID-19. Originality/value: In line with the CSR goal of maximizing benefits for stakeholders, this study’s findings signal that situational changes determine CSR expectations and that companies must be highly susceptible to the changes in consumers’ expectations of CSR and their appraisal process of CSR motives to maximize its CSR value. © 2022, Emerald Publishing Limited.

8.
Journal of Investigative Dermatology ; 142(8, Supplement):S67, 2022.
Article in English | ScienceDirect | ID: covidwho-1936818
9.
AERA OPEN ; 8, 2022.
Article in English | Web of Science | ID: covidwho-1910233

ABSTRACT

We share school leaders' perspectives on Zoom videos concerning the needs of immigrant and refugee families in Title I schools. In these videos, participants crafted and shared personal narratives about their leadership experiences during the COVID-19 era of education. Rooted in participatory design research methods, the process of designing these videos were both a research project and an intervention to assist families and school leaders to better understand each other. We present a close analysis of administrators' perspectives and describe how our codesigned video methodology enabled participants to coconstruct new meanings of school-community relationships during the pandemic through a radical care framework. We conceptualize these reimaginings as aperturas-cracks in the dominant family engagement paradigm that allow us to collectively work towards transformative ends which we term community-centered school leadership. We conclude the article with recommendations for how both school leadership and research can approach and reimagine family engagement postpandemic.

10.
Fertility and Sterility ; 116(3 SUPPL):e299, 2021.
Article in English | EMBASE | ID: covidwho-1880076

ABSTRACT

OBJECTIVE: The COVID-19 pandemic has created many uncertainties for those pursuing fertility care and assisted reproductive technology (ART) procedures, due to ever-changing healthcare restrictions. There is a lack of research on large-scale data for ART procedures during the pandemic. The objective of our study is to evaluate ART procedures, specifically oocyte retrieval and in vitro fertilization (IVF) cycles, prior to and during the pandemic. MATERIALS AND METHODS: Claims data from Symphony Health, one of thelargest databases of patient-level data on morethan 280 million patientsin the US, was examined from May 1, 2019 to February 28, 2021. Reproductiveaged women were included in the analysis. March - April 2020 was used as a threshold for when healthcare restrictions became widespread. We compared 10 months prior to the pandemic (May 2019 - Feb 2020) and the same time period after the start of the pandemic (May 2020 - Feb 2021). ART procedures were identified using CPT codes (58970 for oocyte retrieval, and S4011, S4015, and S4016 for IVF) under ICD-10. Data analysis was conducted in Stata, version 16.1, using 2-sided t-tests with significance set at P < 0.05. RESULTS: Our search yielded 39,087 oocyte retrievals and 14,365 IVF cycles. The average age of patients who started an IVF cycle (36±4.2 vs 35±4.4 years) as well as the age of those who had an oocyte retrieval (36.2±4.6 vs 35.3±4.7 years) prior to and during the pandemic was statistically different. Time series plots show that, after a substantial drop in focal variables in March - April 2020, ART procedures quickly recovered to pre-pandemic baseline by June 2020. Afterwards, oocyte retrievals increased from 1,703 per month pre-pandemic to 2,010 per month during the pandemic, and this difference approached significance (P=0.06). There was not a significant difference in IVF cycles (677 per month pre-pandemic vs 686 per month during the pandemic, P=0.88). CONCLUSIONS: Despite concerns regarding suspension of ART and delivery of infertility care during the pandemic, our study shows no significant difference in oocyte retrievals and IVF cycles prior to and during the COVID-19 pandemic. IMPACT STATEMENT: These results suggest reassuring outcomes despite a health crisis in the US. There was no significant delay or interruption of fertility care and ART procedures in the US. Further research should examine how other social determinants such as ethnicity, income and geographic location affected access to and utilization of infertility care.

11.
Fertility and Sterility ; 116(3 SUPPL):e213, 2021.
Article in English | EMBASE | ID: covidwho-1880075

ABSTRACT

OBJECTIVE: The delivery of women's healthcare has changed drastically with the onset of the COVID-19 pandemic. This has undoubtedly created significant uncertainties for those interested in conception counseling. In particular, fertility preservation (FP) is time-sensitive and often emergent or urgent for patients undergoing gonadotoxic therapy. ASRM provided close monitoring and guidelines during this time of crisis. Our objective was to examine the effect of the pandemic on fertility preservation counseling and family planning. MATERIALS AND METHODS: Claims data from Symphony Health, one of the largest databases of patient-level data on more than 280 million patients in the US, was examined from May 1, 2019 to February 28, 2021. Reproductive-aged women were included in the analysis. March - April 2020 was used as a threshold for when healthcare restrictions became widespread. We compared 10 months prior to the pandemic (May 2019 - Feb 2020) and the same time period after the start of the pandemic (May 2020 - Feb 2021). Fertility preservation counseling (Z31.62), FP procedures (Z31.84), and general family planning counseling (Z31.61 and Z31.69) were identified using ICD-10 codes. Data analysis was conducted in Stata, version 16.1, using 2-sided t-tests with significance set at P < 0.05. RESULTS: In our search, 14,491 FP consultations, 15,049 FP procedures, and 359,218 family planning encounters were identified. The mean age of women undergoing FP and family planning counseling decreased significantly when comparing prior to and during the pandemic (31.9±7.6 vs 31.4±7.1 years, and 32.2±6.1 vs 31.6±6 years, respectively). The average age for patients who underwent a FP procedure (33.5±6.5 vs 33±6.4 years) was also statistically different. Time series plot shows a substantial dropin focal variables in March - April 2020. Interestingly, all three variables quickly recovered to prepandemic baseline by June 2020. FP consultations increased from 542 encounters per month pre-pandemic vs 737 per month during the pandemic, P < 0.001. Similarly, FP proceduresincreased from 640 to 781, P=0.02. In contrast, family planning did not change significantly (16,376 vs 17,552, P=0.21). CONCLUSIONS: FP counseling and procedures increased during the pandemic, despite healthcare restrictions and lockdown measures. On the other hand, family planning encounters did not change. Despite barriers to care related to the pandemic, time-sensitive fertility preservation counseling and procedures continued to be utilized. Our findings also reflect ASRM recommendations regarding suspension of non-emergent fertility management at the onset of the pandemic, and continuity of urgent services afterwards. IMPACT STATEMENT: FP counseling and treatment are emergent services that were not negatively impacted by pandemic-related healthcare restrictions. Under ASRM guidelines, FP continued at an increased pace. This experience shows that, under close guidance, emergent or urgent services may be continued during a public health crisis.

12.
Journal of Educational and Social Research ; 12(3):172-181, 2022.
Article in English | Scopus | ID: covidwho-1879859

ABSTRACT

Information and Communication Technology (ICT) has created ample distance learning opportunities during the Covid-19 pandemic. That also makes a requirement for transformation in education and teacher training. ICT competence is considered a part of pre-service teachers' professional competencies that apply technology in teaching and assessing students. This study aimed to determine the ICT competence level of student teachers by using ICT self-assessment surveys and find out the factors that affect student competence. The ICT competence structure was built based on four ICT skills frameworks containing 05 components: Using computers, using teaching and assessment applications, Using Internet resources, using peripheral devices, Communicating on an online platform. 289 pre-service teachers have participated in the survey. They self-assessed their ICT competence and answered the questionnaire about their training activities at university. The data was analyzed using the PLS-SEM method and found the positive impacts of infrastructure and learning activities on pre-service teachers' ICT competence. © 2022 Thai et al.

13.
Journal of Global Business and Trade ; 18(2):1-15, 2022.
Article in English | Scopus | ID: covidwho-1876315

ABSTRACT

Purpose – The construct of social crowdedness has been debated whether it impacts consumer shopping satisfaction positively or negatively. However, as the COVID-19 has prolonged, people fear places full of people due to possible contamination and so they avoid such areas. Therefore, this study expects that social crowded-ness has a negative effect. However, this study also predicts that consumers’ individual values could moderate the negative effect of social crowdedness. Design/Methodology/Approach – This study recruited an experimental study design for the research purpose above. Through two experiments, this study examined the effect of social crowdedness on shopping satisfaction and the moderating effect of happiness perspective (study 1) and time perspective (study 2). Findings – The study found that people in a high social crowdedness condition showed lower shopping satis-faction. Furthermore, this negative reaction in a high social crowdedness condition was moderated depending on their dominant perspective. Research Implications – Those with calm happiness and present-fatalistic perspective showed even greater shopping satisfaction in low social crowdedness conditions. In contrast, those with exciting happiness and present-hedonic time perspectives showed comparably higher satisfaction in a high crowdedness condition. The results are expected to provide critical strategic implications to retail managers. © 2022 International Academy of Global Business and Trade. All rights reserved.

14.
Korean Chemical Engineering Research ; 60(2):282-288, 2022.
Article in Korean | Web of Science | ID: covidwho-1870102

ABSTRACT

Facial masks have become indispensable in daily life to prevent infection and spread through respiratory droplets in the era of the corona pandemic. To understand how effective two different types of masks (i.e., KF-94 mask and dental mask) are in blocking respiratory droplets, i) we preferentially analyze wettability characteristics (e.g., contact angle and contact angle hysteresis) of filters consisting of each mask, and ii) subsequently observe the dynamic behaviors of microdroplets impacting at high velocities on the filter surfaces. Different wetting properties (i.e., hydrophobicity and hydrophilicity) are found to exhibit depending on the constituent materials and pore sizes of each filter. In addition, the pneumatic conditions for stably and uniformly dispensing microdroplets with a certain volume and impacting behaviors associated with the impacting velocity and filter type change are systematically explored. Three distinctive dynamics constituting the masks and droplet impact velocity. The present experimental results not only provide very useful

15.
2022 zh Conference on Human Factors in Computing Systems, zh EA 2022 ; 2022.
Article in English | Scopus | ID: covidwho-1846569

ABSTRACT

Selfies have become a prominent means of online communication. Group selfies, in particular, encourage people to represent their identity as part of the group and foster a sense of belonging. During the COVID-19 pandemic, video conferencing systems are used as a tool for group selfies. However, conventional systems are not ideal for group selfies due to the rigidness of grid-based layout, information overload, and lack of eye contact. To explore design opportunities and needs for a novel virtual group selfie platform, we conducted a participatory design, and identified three characteristics of virtual group selfie scenarios, "context with narratives", "interactive group tasks", and "capturing subtle moments."We implemented Virfie, a web-based platform that enables users to take group selfies with embodied social interaction, and to create and customize selfie scenarios using a novel JSON specification. In order to validate our design concept and identify usability issues we conducted a user study. Feedbacks from the study participants suggest that Virfie is effective at strengthening social interaction and remote togetherness. © 2022 ACM.

16.
Psychiatr Rehabil J ; 2022 May 05.
Article in English | MEDLINE | ID: covidwho-1829989

ABSTRACT

OBJECTIVE: Individuals with mental health challenges are at particularly high risk of experiencing negative outcomes (e.g., worsening of mental health, increased risk of mortality) due to the coronavirus disease (COVID-19) pandemic. Peer specialists may have the benefit of several protective factors, including higher levels of social support and better illness self-management skills that buffer against negative effects of the pandemic. In this study, we compared the differences in the impact of COVID-19 on those trained as peer specialists (e.g., certified peer specialists, recovery coaches) to those not trained in this role. METHOD: Participants with self-reported mental health and/or substance use challenges completed an online survey to collect information on their experiences during COVID-19 (Epidemic-Pandemic Impacts Inventory [EPII]), loneliness (3-item Loneliness Scale), and access to and satisfaction with mental health support. Respondents self-identified as peer specialists or not. RESULTS: One hundred seventy-three U.S. resident participants from 23 states were included in the final analysis: 109 were peer specialists and 64 were nonpeer specialists. Those who were trained as peer specialists reported fewer negative outcomes during the pandemic, including less disruption in employment, less loneliness, and less worsening of mental health, while reporting more positive attitudes in the face of difficulties. Peer specialists were also likely to report more access to and satisfaction with mental health services. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: Possibly as a function of their role, peer specialists reported better mental health outcomes during COVID-19, providing key, empirical evidence to support the benefits of helping others. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

17.
Research Quarterly for Exercise and Sport ; 93:A28-A29, 2022.
Article in English | Web of Science | ID: covidwho-1798228
18.
Journal of Allergy and Clinical Immunology ; 149(2):AB59-AB59, 2022.
Article in English | Web of Science | ID: covidwho-1798141
19.
Applied Chemistry for Engineering ; 33(1):83-89, 2022.
Article in Korean | Scopus | ID: covidwho-1761287

ABSTRACT

Since the pandemic of COVID-19, active investigation to develop immunity to infectious disease by delivering nucleic acids has been proceeded. Particularly, many studies have been conducted on non-viral vector as several vital side-effects which were found on nucleic acid delivery system using viral vectors. In this study, we have developed plasmid DNA (pDNA) load-ed-hyaluronic acid derivative (HA) coated-polyethyleneimine (PEI) based polyplex for enhanced nucleic acid delivery efficiency. We have optimized the ratio of pDNA: PEI: HA by measuring size and protein transcription efficiency. The final product, polyplex-HA, was characterized through measuring size, zeta-potential and TEM image. Intracellular uptake and protein transcription efficiency were compared to commercially available transfection reagent, lipofectamine, through fluo-rescence image and flow cytometry. In conclusion, polyplex-HA presents a novel gene delivery system for efficient and stable protein transcription since it is available for delivering various genetic materials and has less immunoreactivity. © 2022, Korean Society of Industrial Engineering Chemistry. All rights reserved.

20.
Journal of the Korean Society of Radiology ; 83, 2022.
Article in English | Scopus | ID: covidwho-1704878

ABSTRACT

With the ongoing coronavirus disease 2019 (COVID-19) pandemic, there is an increasing interest in the sequelae and care in recovered patients. Although the long-term sequelae of COVID-19 are still unknown, recently published reports suggest that some of the patients have persistent symptoms and show radiologic abnormalities after discharge. Herein, we present cases of four patients with previous COVID-19 infection manifesting pulmonary sequelae, including pulmonary fibrosis or organizing pneumonia pattern with persistent dyspnea after recovery. © 2021 The Korean Society of Radiology

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