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As COVID-19 mutates, the highly infectious omicron mutants (BA. 5.2., BF. 7) tension shrouded China. Given the internet information explosion and youth social media addiction, observing the mental impact on college students during the 2022 Shanghai closure is worthwhile. A pilot survey study was conducted to explore the anxiety levels of college students during the closure. The sample size was limited to 101 second-year college students. In addition to demographics, the survey involved the Self-Rating Anxiety Scale, self-perceived COVID-19 anxiety, frequency of COVID-19 information reception, number of social media accounts, and number of electronic devices. Though 68.4% of students equipped with two electronic devices (N = 95) exceeded the students with only one electronic device, a Chi-square test showed that students with only one electronic device had the highest anxiety index (mean = 50). Further, the Kruskal-Wallis test indicated that the number of electronic devices affected the students' anxiety level (p = 0.027) while social media membership did not (p = 0.565). As a result, it was suggested that social media usage and pandemic information inputs among college students were significant concerns that required special attention from the government, schools, teachers, and families.
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Due to the outbreak of COVID 19, an online bilingual curriculum was conducted via "Google Meet." The learning material was developed and implemented by using a smartphone application, STEMUP, based on augmented reality (AR) and automatic speech recognition (ASR) technologies. This study investigated the oral performance and perceptions of learning with STEMUP of ninety non-English major students from several colleges at a technical university in Taiwan. Data were collected from pre- and post-tests and a questionnaire survey. Results indicated that students significantly improved their oral performance and recorded their positive perceptions. Students' oral performance significantly depended on their English proficiency. Their perceptions were not significant related to their English proficiency, gender, or college. Instant feedback and evaluation provided by ASR technology and online "Google" text-to-speech service both embedded in STEMUP helped students notice, modify and improve their listening and speaking skills. They were satisfied with the bilingual curriculum, which helped them increase understanding about content knowledge by the teacher's explanation in Chinese, and improve English listening and speaking skills by learning with STEMUP. This study is a good start in creating an interactive and communicative learning environment where translanguaging is effectively integrated with innovative technologies.
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Background: Mobile phones have become a widely accepted learning mode due to the impact of COVID-19. This study explores the mobile technology acceptance, among nursing students at selected educational institutions in South India. Materials and Methods: Quantitative cross-sectional descriptive design. First-year 176 B.Sc. nursing students who underwent blended learning were selected by the purposive sampling method. The tool "Technology Acceptance Model" was used to collect responses. Bivariate analysis was used to determine the relationship between the demographic and study-related variables with the mobile technology acceptance using SPSS version 25.0. Results: The majority 73.9% of the students belonged to the age group of 18-19 years, females 76.7% and, 98.9% were unmarried. Among the constructs of TAM, a mean (SD) value of 22.08 (2.26) was found for material (mobile device audio/video) characteristics the mean (SD) value was 22.08 (2.26), attitude about use 17.58 (1.95), behavioral intention 17.46 (1.78) and system characteristics 17.21 (2.27). The mobile technology acceptance revealed that 126 (71.6%) strongly agreed, 49 (27.8%) agreed, and 1 (0.6%) was neutral with a mean (SD) of 105.19 (8.68), respectively. A positive correlation was found between the system characteristics, material characteristics, perceived ease to use, perceived usefulness, attitude about the use, behavioral intention with a P value <0.001. There was a statistically significant association between Mobile technology acceptance and time spent by the students for independent studies shown the Chi-square value of 12.7, with P value <0.05. Conclusion: Nursing students had a positive acceptance and behavior toward smartphone use.
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With the novel coronavirus disease (COVID-19) pandemic, there has been a significant increase in the opportunities to measure body temperature when using public facilities and to check one's daily health condition. Standing thermometer and handheld devices have been introduced due to their non-contact features. On the other hand, the standing thermometer requires a large space for installation and the person need to move to the front of the device. In this study, we propose a non-contact thermometer that identifies individuals by acquiring images of wrinkles from a camera module and records body temperature individually. The wrinkle image is cropped and then gamma correction removal and grayscaling are applied. The images are fed into a convolutional neural network for the identification. The experiment using images obtained with a smartphone camera from 12 subjects confirmed that individuals could be identified with an average F-value of 0.94. The experiment using images obtained with the proposed device from five subjects confirmed that the identification accuracy exceeded F-value of 0.93 for all subjects. © 2022 ACM.
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The goal of hemodynamic resuscitation is to optimize the microcirculation of organs to meet their oxygen and metabolic needs. Clinicians are currently blind to what is happening in the microcirculation of organs, which prevents them from achieving an additional degree of individualization of the hemodynamic resuscitation at tissue level. Indeed, clinicians never know whether optimization of the microcirculation and tissue oxygenation is actually achieved after macrovascular hemodynamic optimization. The challenge for the future is to have noninvasive, easy-to-use equipment that allows reliable assessment and immediate quantitative analysis of the microcirculation at the bedside. There are different methods for assessing the microcirculation at the bedside; all have strengths and challenges. The use of automated analysis and the future possibility of introducing artificial intelligence into analysis software could eliminate observer bias and provide guidance on microvascular-targeted treatment options. In addition, to gain caregiver confidence and support for the need to monitor the microcirculation, it is necessary to demonstrate that incorporating microcirculation analysis into the reasoning guiding hemodynamic resuscitation prevents organ dysfunction and improves the outcome of critically ill patients.
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Critical Care , Microcirculation , Resuscitation , Critical Care/trends , Hemodynamics , Artificial IntelligenceABSTRACT
Alleviating excessive inflammation while accelerating chronic wound healing to prevent wound infection has remained challenging, especially during the coronavirus disease 2019 (COVID-19) pandemic caused by SARS-CoV-2 when patients experienced difficulties with receive appropriate healthcare. We addressed this issue by developing handheld electrospun aloe-nanofiber membranes (ANFMs) with convenient, environmentally friendly properties and a therapeutic capacity for wound closure. Our results showed that ANFMs fabricated with high molecular weight polyvinyl alcohol (PVA) to form fibers during electrospinning had uniform fibrous architecture and a porous structure. Given the value of aloe gel in accelerating wound healing, liquid extracts from ANFMs significantly downregulated the expression of the pro-inflammatory genes, interleukin-6 (IL-6) and inducible nitric oxide synthase (iNOS), and markedly suppress the generation of reactive oxygen species (ROS) induced by lipopolysaccharide in RAW264.7 macrophages. These results indicated the excellent antioxidant and anti-inflammatory effects of ANFMs. After implantation into a mouse diabetic wound model for 12 days in situ, ANFMs notably expedited chronic wound healing via promoting angiogenesis and enhancing cell viability. Our ANFMs generated by handheld electrospinning in situ healed chronic wounds offer a convenient and promising alternative for patients to heal their own wounds under variable conditions.
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Lab-on-a-chip technologies and microfluidics have pushed miniaturized liquid handling to unprecedented precision, integration, and automation, which improved the reaction efficiency of immunoassays. However, most microfluidic immunoassay systems still require bulky infrastructures, such as external pressure sources, pneumatic systems, and complex manual tubing and interface connections. Such requirements prevent plug-and-play operation at the point-of-care (POC) settings. Here we present a fully automated handheld general microfluidic liquid handling automation platform with a plug-and-play 'clamshell-style' cartridge socket, a miniature electro-pneumatic controller, and injection-moldable plastic cartridges. The system achieved multi-reagent switching, metering, and timing control on the valveless cartridge using electro-pneumatic pressure control. As a demonstration, a SARS-CoV-2 spike antibody sandwich fluorescent immunoassay (FIA) liquid handling was performed on an acrylic cartridge without human intervention after sample introduction. A fluorescence microscope was used to analyze the result. The assay showed a limit of detection at 31.1 ng/mL, comparable to some previously reported enzyme-linked immunosorbent assays (ELISA). In addition to automated liquid handling on the cartridge, the system can operate as a 6-port pressure source for external microfluidic chips. A rechargeable battery with a 12 V 3000 mAh capacity can power the system for 42 h. The footprint of the system is 16.5 × 10.5 × 7 cm, and the weight is 801 g, including the battery. The system can find many other POC and research applications requiring complex liquid manipulation, such as molecular diagnostics, cell analysis, and on-demand biomanufacturing.
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Young children's use of digital technologies has presented challenges for parents, particularly in response to an increased reliance on digital resources during the COVID-19 pandemic. This mixed-methods study explored young children's digital practices within the context of their families and homes. Although this study was originally planned, the timing of data collection meant that it was uniquely positioned to capture parent perspectives as the pandemic and first lockdown was unfolding in Australia. Data was collected through questionnaire (N = 101) and semistructured interview (n = 20) about status and change in children's digital practices, and parents' rules and flexibility in governing these experiences. Quantitative findings suggested children's frequency and duration of digital device use trended upwards during lockdown, and parents were more flexible in their rules about the amount of screen time, as well as when and where children could use digital devices. Qualitative results suggested that, more than a temporary and situational change, for many parents, exposure to new ways of engaging with digital technologies facilitated a shift in their perceptions, leading to greater consideration of quality in their choices for their children. This study highlights the influential role of parents in shaping children's digital experiences. Understanding their perceptions, as well as children's current and shifting digital practices in the home, is important for informing efforts and guidance for supporting young children's safe and effective use of digital technologies.
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During COVID-19, there was increased use of handheld displays in educational settings. There is growing concern that eye health may be affected by prolonged exposure to the light-emitting diodes used as frontlights or backlights in handheld displays. The potential impact of light exposure from tablet-sized devices with different display technologies and various spectral outputs was assessed in an in vitro model using human retinal epithelial (ARPE-19) cells. Cellular response was quantified by measuring reactive oxidative species (ROS) and by analyzing mitochondrial morphology. Control experiments established a baseline ROS response to hazardous blue light exposure and also that red light resulted in no detectable ROS response. Under identical conditions, ROS response increased with time for all devices. However, different device spectra caused ROS to accumulate at different rates. When operating the devices in the same mode (day or night), cells accumulated ROS two to three times more slowly on exposure to frontlit electronic paper displays compared to backlit liquid crystal displays. With increasing ROS accumulation, mitochondrial morphology shifted from elongate interconnected features typically observed under normal conditions to rounded disconnected features associated with oxidative stress response. © 2023 E Ink Corporation. Journal of the Society for Information Display published by Wiley Periodicals LLC on behalf of Society for Information Display.
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In work-from-home (WFH) situation due to coronavirus (COVID-19) pandemic, the handheld device (HHD) users work in awkward postures for longer hours because of unavailability of ergonomically designed workstations. This problem results in different type of musculoskeletal disorders (MSDs) among the HHD users. An integrated multi-criteria decision-making approach was offered for identifying the risk level of MSDs among HHD users. A case example implemented the proposed approach in which, firstly, the best-worst method (BWM) technique was used to prioritize and determine the relative importance (weightage) of the risk factors. The weightages of the risk factors further used to rank the seven alternatives (HHD users) using Vlse Kriterijumska Optimizacija Kompromisno Resenje (VIKOR) technique. The outcomes of the BWM investigation showed that the three most significant risk factors responsible for MSDs are duration of working, poor working posture and un-ergonomic design. The outcome of the VIKOR technique exhibited that computer professionals were at the highest risk among all users. The risk factor priority must be used for designing a working strategy for the WFH situation which will help to mitigate the risks of MSDs.
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Purpose: The exponential use of handheld electronic devices (HEDs) among healthcare providers has shown the potential to enhance clinical workflows and improve patient care. However, the challenges and risks of carrying these devices during ward rounds and their impact on postgraduate trainees' (PGTs') training in general and more specifically during the COVID-19 pandemic need to be explored. Methods: A cross-sectional mixed-methods online survey was conducted to evaluate the perceptions of trainees and faculty at Accreditation Council for Graduate Medical Education International accredited residency and fellowships programs in Qatar on the use of HEDs on clinical workflow, trainees' education, and the impact of the COVID-19 pandemic. One hundred and fifty-eight participants were enrolled in the study (87 postgraduate trainees and 71 faculty). Exploratory data analysis and descriptive statistics were performed using STATA version 12 and thematic analysis of 301 qualitative responses to the survey open-ended questions using Atlas. ti qualitative software, version 9.4.0. Results: Almost all PGTs, 83 (95.4%), and faculty 43 (62.3%) use HEDs during ward rounds. Accessibility of patient information by PGTs 73 (94.8%) and faculty 46 (84.4%) and work efficiency were the main perceived benefits. Hindering communication between team members, disruption of interaction with patients, increased risk of infection and breach of patient confidentiality were among the challenges associated with their use. Carrying devices reduced the frequency of hand hygiene practices and physical examinations of patients by trainees. The COVID-19 pandemic led to a decrease in the use of HEDs by both faculty [38(64%)] and PGTs [42(60%)]. Conclusion: HEDs' use is valued by both faculty and PGTs in enhancing workflow, trainees' education, patient experience, and patient care during the COVID-19 pandemic. Graduate medical education leaders should adopt measures to monitor their use during ward rounds as they can negatively impact trainees' education, reduce interaction with patients, increase the risk of infection, and breach patient confidentiality.
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The physical examination is one of the most important diagnostic tools for physicians. Traditionally, a physical examination consists of inspection (looking), palpation (feeling), percussion (reflection of sound) and auscultation (listening). Handheld echography devices could become the new fifth element of a physical examination. The use of handheld echocardiography has recently increased because the devices have become smaller, easier to handle and more affordable. Handheld echocardiography is used by many specialists involved in acute cardiovascular care. In this narrative review we give a summary of the diagnostic accuracy and limitations of cardiovascular physical examination combined with handheld echocardiography. In patients with cardiovascular disease, adding handheld echocardiography to physical examination increases the sensitivity for detecting valvular heart disease (71% vs 46%) and left ventricular dysfunction with an ejection fraction <â¯50% (84% vs 43%). Handheld echocardiography might be better for ruling out diseases with a low pre-test probability than in confirming diseases with a high pre-test probability.
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The emergence of the COVID-19 pandemic caused a significant shortage of medical personnel and the prioritization of life-saving procedures on internal medicine and cardiology wards. Thus, the cost- and time-effectiveness of each procedure proved vital. Implementing elements of imaging diagnostics into the physical examination of COVID-19 patients could prove beneficial to the treatment process, providing important clinical data at the moment of admission. Sixty-three patients with positive COVID-19 test results were enrolled into our study and underwent physical examination expanded with a handheld ultrasound device (HUD)-performed bedside assessment included: right ventricle measurement, visual and automated LVEF assessment, four-point compression ultrasound test (CUS) of lower extremities and lung ultrasound. Routine testing consisting of computed-tomography chest scanning, CT-pulmonary angiogram and full echocardiography performed on a high-end stationary device was completed in the following 24 h. Lung abnormalities characteristic for COVID-19 were detected in CT in 53 (84%) patients. The sensitivity and specificity of bedside HUD examination for detecting lung pathologies was 0.92 and 0.90, respectively. Increased number of B-lines had a sensitivity of 0.81, specificity 0.83 for the ground glass symptom in CT examination (AUC 0.82; p < 0.0001); pleural thickening sensitivity 0.95, specificity 0.88 (AUC 0.91, p < 0.0001); lung consolidations sensitivity 0.71, specificity 0.86 (AUC 0.79, p < 0.0001). In 20 patients (32%), pulmonary embolism was confirmed. RV was dilated in HUD examination in 27 patients (43%), CUS was positive in two patients. During HUD examination, software-derived LV function analysis failed to measure LVEF in 29 (46%) cases. HUD proved its potential as the first-line modality for the collection of heart-lung-vein imaging information among patients with severe COVID-19. HUD-derived diagnosis was especially effective for the initial assessment of lung involvement. Expectedly, in this group of patients with high prevalence of severe pneumonia, HUD-diagnosed RV enlargement had moderate predictive value and the option to simultaneously detect lower limb venous thrombosis was clinically attractive. Although most of the LV images were suitable for the visual assessment of LVEF, an AI-enhanced software algorithm failed in almost 50% of the study population.
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Young people in East and Southern Africa need greater access to reliable information about health and education in order to make informed decisions on health matters--focusing on HIV and teenage pregnancy--and to increase basic education outcomes. Young 1ove organization, established in March 2014 in Gaborone, Botswana, is a grassroots, youth-led, evidence-based movement in East and Southern Africa. Its mission is to connect youth to proven life-saving information. Its core competencies are delivering sensitive information to young people in a credible and relatable fashion, busting myths, changing beliefs and norms, generating demand, and building connection and trust. As a portfolio organization, Young 1ove commits to a few, highly curated programs. It invests in these programs for the long term--testing, iterating, and following the evidence at each step of the program life cycle. This article discusses lessons learned along the way of implementing Teaching at the Right Level (TaRL). TaRL is an education program that supports students who are falling behind in basic literacy and numeracy by grouping them according to ability level, rather than teaching to a syllabus that is often far too advanced for most students. In addition, the program has a menu of fun and level-appropriate activities that are custom-tailored to each group of students.
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Nowadays, the serious situation that affects the entire world goes beyond the social, cultural, economic problems and other conflicts that occur day by day. These were left aside to move to a global alert, we refer to the pandemic crisis that all the nations of the world are facing. Confinement forced people all over the world to stay at home, therefore, communications through electronic devices became very necessary. This study does not seek to analyze the pandemic crisis, its purpose is to analyze the use that students give to their mobile phone, to determine if this has generated addiction, in addition to identifying if use differs in men and in women. Participants were 184 high school students enrolled in a public sector institution in the Port of Veracruz, Mexico. To obtain the data, the SAS-CV test was used. This contains questions related to the profile of the respondent and 10 items in Likert format. It was distributed via electronic devices for their response. The data were statistically analyzed using polychoric correlation matrices and factor analysis with component extraction. The main findings demonstrate the obtaining of three components: physiological, dependence and distraction, which account for 68% of the total variance, and it was also shown that there are no differences by gender.
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Mobile learning, which is widely used in educational settings during the COVID-19 pandemic, will continue playing a critical role in learning environments in the future. Since the successful implementation of mobile learning in education is largely based on users' acceptance of these technologies, it is essential to understand the factors affecting learners' acceptance of mobile devices as learning tools. This study investigated Syrian adult refugees' acceptance and use of mobile learning tools. The results revealed that Syrian adult refugees were positive about using mobile devices in learning Turkish as a second/foreign language, and there exists a concrete and significant correlation among all the constructs of the mobile learning tools acceptance like Perceived Ease of Use, Contribution to Foreign Language Learning, Negative Perceptions, and Voluntariness of Use. Factors affecting mobile learning acceptance was also investigated in the study, and the results indicated significant differences among the refugees regarding their characteristics such as age, gender, level of education. The results also revealed that while the refugees did better in the tests over time, mobile learning acceptance had no significant effect on foreign language achievement. Depending on these results, it can be suggested that mobile devices should be integrated into the education system as a component of the curriculum.
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Due to technical advancements, humanity has seen a variety of sociological transformations. In historical terms, the move to sedentary life may be categorized widely into two categories: industrial society and information society. It also indicates that these changes and advances are permanent in the educational and training contexts and that the link between teaching and technology is anchored and evolving. The specific differences of each student will be taken into account in future foreign language classrooms, as well as providing them with an active role, associating their learning, and equipping teachers with technical tools. This may be accomplished by submitting the future approach to educational settings to teacher candidates. The readiness is an essential factor, as the quality of preparation of teacher candidates and technology itself. Further technical breakthroughs have affected our everyday lives, the formation of new vehicles utilized in educational contexts, and the development of new methodologies, including today's smart tablet computers from the abacus. Today's research reflects the need to consider the potential effects of the COVID pandemic from a broader viewpoint. According to this perspective, rather than being viewed as an event, the integration of technology into education should be seen as a process influenced by variables other than only technological development. It is critical to assess the current situation in light of the history of technology and the existing situation in the present and changes throughout time as indicators of future developments. However, the extent of current data on the usage of mobile technology, which falls under the category of mobile technology, limits the reach of a retrospective cohort study (also called a historical cohort study or with a more general name longitudinal cohort study). The purpose of this study is to present data for future Longitudinal Cohort Studies by illustrating the degree of readiness of ongoing Anadolu University, Faculty of Education German as a Foreign Language Teacher Candidates.
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After the exceptional circumstances the whole world has experienced due to the COVID-19 pandemic, students have become digital natives who seek learning that overcomes the barriers of place and time. This mixed-methods study aimed at investigating EFL learners' perceptions regarding the application of Busuu in language learning, by applying the Technology Acceptance Model (TAM). The participants were 58 first secondary stage students in a Saudi private school. An online survey and a semi-structured interview were used to collect data. The results revealed that EFL learners have a positive attitude towards Mobile Assisted Language Learning (MALL). Additionally, according to the TAM, the participants found the language application Busuu useful and easy to use. They also thought of Busuu as a valuable resource for language learning, which increases their motivation to be autonomous learners. However, in addition to the TAM components, the results also showed that affordance and joyfulness could be strong indicators of learners' acceptance of a particular technology. Moreover, the results revealed that mobile applications might be more helpful for beginner learners than advanced ones. On the other hand, the findings also showed that Busuu might distract learners from doing their homework. Besides, the regular use of Busuu might be harmful to their eyes due to the small mobile screen size. For further research, the recommendation includes a large sample size in addition to a long-term study of EFL learners' perception towards Busuu in normal classroom circumstances.
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This article is about the challenge of communication via smartphones and tablets by people with intellectual disabilities (ID). We will give special attention to persons that struggle with verbal communication. One of our co-researchers, the fourth author, has a severe ID. She cannot read, write or use voice assisted technology in any functional manner. As a result of many years of collaboration, and the need for solutions in connection with the challenges with COVID-19, she and her family have developed ways of remote communication that can be mastered both by the person with an ID and the majority (those without similar disabilities). We call it "doing and talking." Successful remote communication not only depends on technology and how to use it, but also on communication strategies that both work for the person with an ID and the majority. It is often the case that people with ID are expected to learn the skills necessary to adapt to the majority. We will show that success is just as much a question of the majority learning new skills and strategies that can make real inclusion and collaboration possible.
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The widespread school closures due to the COVID-19 pandemic have exacerbated the learning crisis for children living in Eastern and Southern Africa. The crisis has also shown the great need to develop resilient education systems that can provide learning when schools are forced to close. Understanding how to provide remote learning equitably utilizing multiple modalities and emphasizing low-tech solutions in Eastern and Southern Africa is critical given the great challenges facing the region in terms of electricity and connectivity access. This report provides a summary of lessons learned in the East and Southern Africa region from remote learning during COVID-19 and provides concrete recommendations on how to increase the resilience of education systems.