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1.
IEEE Sensors Journal ; 23(2):981-988, 2023.
Article in English | Scopus | ID: covidwho-2242115

ABSTRACT

The emergence of COVID-19 has drastically altered the lifestyle of people around the world, resulting in significant consequences on people's physical and mental well-being. Fear of COVID-19, prolonged isolation, quarantine, and the pandemic itself have contributed to a rise in hypertension among the general populace globally. Protracted exposure to stress has been linked with the onset of numerous diseases and even an increased frequency of suicides. Stress monitoring is a critical component of any strategy used to intervene in the case of stress. However, constant monitoring during activities of daily living using clinical means is not viable. During the current pandemic, isolation protocols, quarantines, and overloaded hospitals have made it physically challenging for subjects to be monitored in clinical settings. This study presents a proposal for a framework that uses unobtrusive wearable sensors, securely connected to an artificial intelligence (AI)-driven cloud-based server for early detection of hypertension and an intervention facilitation system. More precisely, the proposed framework identifies the types of wearable sensors that can be utilized ubiquitously, the enabling technologies required to achieve energy efficiency and secure communication in wearable sensors, and, finally, the proposed use of a combination of machine-learning (ML) classifiers on a cloud-based server to detect instances of sustained stress and all associated risks during times of a communicable disease epidemic like COVID-19. © 2001-2012 IEEE.

2.
3rd International Conference on Multidisciplinary Research, MyRes 2022 ; 2022:324-344, 2023.
Article in English | Scopus | ID: covidwho-2233765

ABSTRACT

Soap is an indispensable product in households, schools, offices, and hospitals in the prevention of diseases such as Covid-19 and respiratory diseases. Vietnam is a country with plentiful coconuts, and the mass production of soap products from coconut oil is feasible and highly competitive. Therefore, science, technology, engineering, and mathematics (STEM) teaching on the topic of making soap from coconut oil is practically meaningful. As a result, not only are students educated on the importance of soap but also develop their STEM knowledge. They also become engaged in their learning and try hard to perfect their products in the fastest and best way possible. Among the teaching methods of making soap from coconut oil, the 5E (engagement, exploration, explanation, elaboration, and evaluation) cycle model is the most appropriate. This teaching model helps students thoroughly explore the knowledge and to work harmoniously in groups. The study aimed to investigate how 9th Grade students at Vo Van Tan Secondary School, Ho Chi Minh City made soap from coconut oil. These students were members of 9A2 and 9A7. After learning how to make soap from coconut oil, students can make similar products, such as dishwashing detergent, from fruit or vegetable peels. This model thus helps students to be creative in STEM disciplines through problem analysis and exploration. We found that the students were very interested in making natural products such as soap and, in addition to STEM and 5E learning, they addressed an important real-world challenge with their own safe and simple handmade soap for hand-washing, disinfecting, and pandemic prevention. © 2023 International Conference on Multidisciplinary Research. All rights reserved.

3.
Journal of Risk and Financial Management ; 15(11), 2022.
Article in English | Web of Science | ID: covidwho-2200463

ABSTRACT

Bank stability is a goal that bank managers aim for in addition to the goal of maximizing shareholder value. To achieve this goal, commercial banks have applied various solutions, including corporate governance because corporate governance plays an important role in the business activities of an enterprise in general as well as in that of a commercial bank in particular. The purpose of this paper is to investigate the impact of corporate governance on the stabilities of Vietnamese commercial banks in the period from 2009 to 2020. Using hand-collected data from 25 commercial banks in Vietnam, by system GMM estimation and the Bayesian Mixed-Effects approach, the paper identifies the characteristics of corporate governance affecting bank stability. Board size, women board members, and board members' education have a positive impact, and dependent board and foreign board members have a negative impact on bank stability. Our findings show important evidence for an emerging country, such as Vietnam. From the empirical results, the authors suggest several recommendations to maintain and enhance bank stability in the future time.

4.
IEEE Sensors Journal ; : 1-1, 2022.
Article in English | Scopus | ID: covidwho-2078239

ABSTRACT

The emergence of COVID-19 has drastically altered the lifestyle of people around the world, resulting in significant consequences in people’s physical and mental wellbeing. Fear of COVID-19, prolonged isolation, quarantine, and the pandemic itself have contributed to a rise in hypertension amongst the general populace globally. Protracted exposure to stress has been linked with the onset of numerous diseases and even increased frequency in suicides. Stress monitoring is a critical component of any strategy used to intervene in case of stress. However, constant monitoring during activities of daily living using clinical means is not viable. During the current pandemic, isolation protocols, quarantines and overloaded hospitals have made it physically challenging for subjects to be monitored in clinical settings. This study presents a proposal for a framework that uses unobtrusive wearable sensors, securely connected to an AI-driven cloud-based server for early detection of hypertension and an intervention facilitation system. More precisely, the proposed framework identifies the types of wearable sensors that can be utilized ubiquitously, the enabling technologies required to achieve energy efficiency and secure communication in wearable sensors and finally, the proposed use of a combination of machine learning classifiers on a cloud-based server to detect instances of sustained stress and all associated risks during times of a communicable disease epidemic like COVID-19. IEEE

5.
International Series in Operations Research and Management Science ; 332:121-140, 2022.
Article in English | Scopus | ID: covidwho-2075213

ABSTRACT

Hoarding and phantom orders reflect negative buying behavior in times of crisis, such as after a natural disaster. The COVID-19 outbreak, which began in late 2019 and spread worldwide, witnessed a boom in essential products. This chapter aims to analyze the unexpected surge in demand for medical supplies through the lens of behavioral supply chain management. Using the face mask for illustration, this study illustrates its demand and supply during the COVID-19 outbreak. Despite different opinions on the face-mask mandate, their demand has soared during the pandemic in many countries. We review how hoarding behavior influences the stock management model and proposes collaboration among all actors in a supply chain to address the hoarding problem. The chapter contributes to a comprehensive and insightful analysis of strategies to resolve the boom and the bust of medical supplies during the pandemic. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

6.
European Stroke Journal ; 7(1 SUPPL):553-554, 2022.
Article in English | EMBASE | ID: covidwho-1928146

ABSTRACT

Background: Prior studies indicated a decrease in the incidences of subarachnoid hemorrhage (SAH) during the early stages of the COVID- 19 pandemic. We evaluated differences in the incidence, severity of SAH presentation, and ruptured aneurysm treatment modality during the 1st year of the COVID-19 pandemic compared to the preceding year. Methods: We conducted a cross-sectional study including 49 countries and 187 centers. We recorded volumes for: COVID-19 hospitalizations, SAH hospitalizations, Hunt-Hess Grade, coiling, clipping, and aneurysmal SAH (aSAH) in-hospital mortality. Diagnoses were identified by ICD-10 codes or stroke databases from January 2019 to May 2021. Results: Over the study period, there were 16,247 aSAH admissions, 344,491 COVID-19 admissions, 8,300 coiling and 4,240 aneurysmal clipping procedures. Declines were observed in aSAH admissions (-6.4% [95%CI -7,-5.8];p=0.0001) during the first year of the pandemic compared to the prior year, most pronounced in high-volume SAH and highvolume COVID-19 hospitals. There was a trend towards a decline in mild and moderate presentation of aSAH (mild: -5%[-5.9,-4.3], p=0.06;moderate: -8.3%[-10.2,-6.7], p=0.06) but no difference in higher SAH severity. The clipping rate remained unchanged (30.7% vs. 31.2%, p=0.58), whereas coiling increased (53.97%vs.56.5%, p=0.009). There was no difference in aSAH in-hospital mortality rate (19.1% vs 20.1%,p=0.12). Conclusion: During the first year of the pandemic, there was a decrease in aSAH admissions volume driven by a decrease in mild to moderate presentation of aSAH. There was an increase in the coiling rate, but no change in clipping rate, nor change in aSAH in-hospital mortality.

7.
European Stroke Journal ; 7(1 SUPPL):102, 2022.
Article in English | EMBASE | ID: covidwho-1928106

ABSTRACT

Background and aims: COVID-19 related inflammation, endothelial dysfunction and coagulopathy may increase the bleeding risk and lower the efficacy of revascularization treatments in patients with ischemic stroke (IS). We aimed to evaluate the safety and disability outcomes of revascularization treatments in patients with IS and COVID-19. Methods: Retrospective multicenter cohort study of consecutive IS patients receiving intravenous thrombolysis (IVT) and/or endovascular treatment (EVT) between March-2020 and June-2021, tested for SARSCoV- 2 infection. With a doubly-robust model combining propensity score weighting and multivariate regression, we studied the association of COVID-19 with bleeding complications and clinical outcomes. Subgroup analyses were performed according to treatment groups (IVT-only and EVT). Study protocol was registered in ClinicalTrials.gov (NCT04895462). Results: Among 15128 revascularized patients from 105 centers, 853 (5.6%) were diagnosed with COVID-19. 5848 (38.7%) patients received IVT only, and 9280 (61.3%) EVT (+/- IVT). As shown in the Figure, treated patients with COVID-19 had a higher rate of symptomatic intracerebral hemorrhage (SICH), symptomatic subarachnoid hemorrhage (sSAH), the combination thereof, higher mortality at 24 hours and 3 months, and worse 3-month modified Rankin score (mRS). Results for treatment subgroups were similar, except that in the IVT-only group only SICH, 3-month mRS and mortality were significantly increased. Conclusion: Ischemic stroke patients with COVID-19 showed higher rates of bleeding complications and worse clinical outcomes after acute revascularization treatments than contemporaneous non-COVID-19 treated patients. (Table Presented).

8.
Inzynieria Mineralna ; 1(2):505-512, 2021.
Article in English | Scopus | ID: covidwho-1703001

ABSTRACT

As an important task of the country's socio-economic development, protecting the rights of female workers in employment and income is concerned and implemented by international organizations and all countries in the world. The COVID-19 pandemic has been affecting the global economy and hurt the incomes and employment of many female workers. In Vietnam nowadays, there is an increase in the unemployment rate of female workers, gender inequality in employment and income, and the ability to secure their jobs and income. The article analyzes the current regulations and their implementation in the employment and income of Vietnamese female workers in the context of the COVID-19 pandemic. The article also proposes some recommendations on legal provisions related to training backup jobs, arranging and employing female employees, providing income support for female employees during leave due to the COVID-19 epidemic;and policies related to female workers and their employers. These recommendations will improve Vietnam's labor law on female workers' rights in employment and income and enhance the efficiency of human resource use and socio-economic development. © 2021 Polish Mineral Engineering Society. All rights reserved.

9.
12th International Conference on Knowledge and Systems Engineering (KSE) ; : 183-188, 2020.
Article in English | Web of Science | ID: covidwho-1411193

ABSTRACT

Currently, online learning has been widely applied in education and training. Especially, when it is difficult for lecturers and learners to get close to each other in the context of Covid-19 epidemic period, online learning shows its availability and necessary. Learning materials provided in the educational institutions are diverse;almost lectures are stored as files but have not been totally arranged in a standard database system. Therefore, searching information about curriculum and lectures still face difficulties. This paper proposes a solution for semantic-based searching in learning resources. Firstly, ontologies are built to represent information of lectures. When users enter a query, the system pre-processes it (e.g., word segmentation, removing stop words), and then provides it to classifier (e.g., SVM) to identify the corresponding domain (or topic), aiming to narrow the search space in the ontology. After classifying, the key phrases will be queried in the appropriate ontology to result in related lectures. Experiments on lectures in the domains of information technology show that the proposed model is feasible.

10.
4th International Econometric Conference of Vietnam, ECONVN 2021 ; 983:483-497, 2022.
Article in English | Scopus | ID: covidwho-1391718

ABSTRACT

This study forecasts GDP growth rate and inflation in Vietnam before and after the COVID-19 pandemic has spread using artificial neural network in order to assess its influences on the economics for each year in the period 2019–2030. The result shows that the COVID-19 pandemic just reduces GDP growth over 2020 and 2021, and increases to more than 7% in the following years. It also raises the inflation increase, but less than 4%. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

11.
Asian Pacific Journal of Tropical Medicine ; 14(5):234-235, 2021.
Article in English | EMBASE | ID: covidwho-1273563
12.
Stroke ; 52(SUPPL 1), 2021.
Article in English | EMBASE | ID: covidwho-1234327

ABSTRACT

Introduction: During the COVID-19 pandemic, decreased volumes of stroke admissions and mechanical thrombectomy were reported. The objective was to examine whether subarachnoid hemorrhage(SAH) hospitalizations and ruptured aneurysm coiling interventions demonstrated similar declines. Methods: We conducted a global, retrospective, observational study across 6 continents, 37 countries, and 140 comprehensive stroke centers. Patients with diagnosis of SAH, ruptured aneurysm coiling interventions, COVID-19 were identified using ICD-10 codes or by prospectively maintained stroke databases. The 3-month cumulative volume, monthly volumes for SAH hospitalizations and ruptured aneurysm coiling procedures were compared for the period before (1- year and immediately before) and during the COVID-19 pandemic (March 1 to May 31, 2020). Results: There was a significant decline in SAH hospitalizations with 2,044 admissions in the 3 months immediately before and 1,585 admissions during the pandemic, representing a decline of 22.5% (95%CI, -24.3 to -20.7, p<0.0001). Embolization of ruptured aneurysms declined with 1,170 to 1,035 procedures, respectively, representing an 11.5%(95%CI, -13.5 to -9.8, p=0.002) drop. Hospitals with higher COVID-19 hospitalization burden demonstrated greater declines in SAH and ruptured aneurysm coiling compared to lower COVID-19 burden. A relative increase in coiling of ruptured aneurysms was noted in low coiling volume hospitals of 41.1% (95%CI, 32.3-50.6, p=0.008) despite a decrease in SAH admissions in this tertile. Conclusions: There was a global decrease in subarachnoid hemorrhage admissions and ruptured aneurysm embolizations during the COVID-19 pandemic. Among low-volume coiling SAH hospitals, there was an increase in the ruptured aneurysm coiling intervention. These findings in SAH are consistent with a global decrease in other emergencies such as stroke and myocardial infarction.

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