Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 4 de 4
Filter
Add filters

Language
Document Type
Year range
1.
Education Sciences ; 12(12):857, 2022.
Article in English | MDPI | ID: covidwho-2123558

ABSTRACT

The higher education sector globally has gone through a transition because of the coronavirus outbreak, and as a result, many traditional higher education institutions across the globe have been forced to go online to provide education and arrange assessments so that their students could continue their education and complete their courses. Unlike developed countries, at the beginning of the lockdown, most of the higher education institutions in Bangladesh shut down their operations, and a few universities started moving toward online distance teaching and learning activities. Based on an empirical study, this article discusses the challenges of teaching and learning in higher education in Bangladesh during the COVID-19 lockdown. It also identifies good practices to overcome those challenges. An online survey was conducted to collect data from university teachers throughout the country. Findings from this study show that it was a great challenge for most universities to adopt online teaching and learning models at the beginning of the pandemic. Many factors, such as preparedness, limited resources including financial means, low digital literacy, internet connectivity and suitable physical and virtual infrastructure affected this transition. However, the findings also show that the COVID-19 pandemic created new opportunities for educators and practitioners to explore various professional development activities by trying out different digital pedagogies through practice and reflection. This article also highlights the immediate effect and long-term impact on teaching and learning regarding preparedness for future approaches to education in emergencies.

2.
ACS Appl Bio Mater ; 5(6): 2431-2460, 2022 06 20.
Article in English | MEDLINE | ID: covidwho-1852370

ABSTRACT

The COVID-19 pandemic caused by the SARS-CoV-2, a ribonucleic acid (RNA) virus that emerged less than two years ago but has caused nearly 6.1 million deaths to date. Recently developed variants of the SARS-CoV-2 virus have been shown to be more potent and expanded at a faster rate. Until now, there is no specific and effective treatment for SARS-CoV-2 in terms of reliable and sustainable recovery. Precaution, prevention, and vaccinations are the only ways to keep the pandemic situation under control. Medical and scientific professionals are now focusing on the repurposing of previous technology and trying to develop more fruitful methodologies to detect the presence of viruses, treat the patients, precautionary items, and vaccine developments. Nanomedicine or nanobased platforms can play a crucial role in these fronts. Researchers are working on many effective approaches by nanosized particles to combat SARS-CoV-2. The role of a nanobased platform to combat SARS-CoV-2 is extremely diverse (i.e., mark to personal protective suit, rapid diagnostic tool to targeted treatment, and vaccine developments). Although there are many theoretical possibilities of a nanobased platform to combat SARS-CoV-2, until now there is an inadequate number of research targeting SARS-CoV-2 to explore such scenarios. This unique mini-review aims to compile and elaborate on the recent advances of nanobased approaches from prevention, diagnostics, treatment to vaccine developments against SARS-CoV-2, and associated challenges.


Subject(s)
COVID-19 , Nanostructures , COVID-19/prevention & control , COVID-19 Vaccines/therapeutic use , Humans , Nanostructures/therapeutic use , Pandemics/prevention & control , SARS-CoV-2/genetics , Vaccine Development
3.
Sustainability ; 13(17):9912, 2021.
Article in English | MDPI | ID: covidwho-1390765

ABSTRACT

Fisheries and the aquaculture sector can play a significant role in the achievement of several of the goals of the 2030 Sustainable Development agenda. However, the current COVID-19 situation can negatively impact the fisheries sector, impeding the pace of the achievement of development goals. Therefore, this paper highlighted the performance and challenges of the fisheries sector in Bangladesh, emphasising the impact of COVID-19 and the significance of this sector for achieving the Sustainable Development Goals (SDGs), through primary fieldwork and secondary data. The total fish production in the country has increased more than six times over the last three decades (7.54 to 43.84 lakh MT) with improved culture techniques and extension services. Inland closed water contributions have increased to 16%, while inland open water has declined to 10%, and marine fisheries have dropped to 6% over the past 18 financial years (2000–2001 to 2018–2019). COVID-19, a significant health crisis, has also affected various issues associated with aquatic resources and communities. Transportation obstacles and complexity in the food supply, difficulty in starting production, labour crisis, sudden illness, insufficient consumer demand, commodity price hikes, creditor’s pressure, and reduced income were identified as COVID-19 drivers affecting the fisheries sector. The combined effect of these drivers poses a significant threat to a number of the SDGs, such as income (SDG1), nutrition (SDG2), and food security (SDG3 and SDG12), which require immediate and comprehensive action. Several recommendations were discussed, the implementation of which are important to the achievement of the SDGs and the improved management of the aquatic sector (SDG14—life below, and SDG16—life above water).

4.
Mar Policy ; 126: 104422, 2021 Apr.
Article in English | MEDLINE | ID: covidwho-1062510

ABSTRACT

COVID-19 is now a major global health crisis, can lead to severe food crisis unless proper measures are taken. Though a number of scientific studies have addressed the possible impacts of COVID-19 in Bangladesh on variety of issues, problems and food crises associated with aquatic resources and communities are missing. Therefore, this study aimed at bridging the gap in the existing situation and challenges of COVID-19 by linking its impact on aquatic food sector and small-scale fisheries with dependent population. The study was conducted based on secondary data analysis and primary fieldwork. Secondary data focused on COVID-19 overview and number of confirmed, recovered and death cases in Bangladesh; at the same time its connection with small-scale fisheries, aquatic food production, demand and supply was analyzed. Community perceptions were elicited to present how the changes felt and how they affected aquatic food system and small-scale fisheries and found devastating impact. Sudden illness, reduced income, complication to start production and input collection, labor crisis, transportation abstraction, complexity in food supply, weak value chain, low consumer demand, rising commodity prices, creditor's pressure were identified as the primary affecting drivers. Dependent people felt the measures taken by the Government should be based on protecting both the health and food security. Scope of alternative income generating opportunities, rationing system, training and motivational program could improve the situation. The study provides insight into policies adopted by the policy makers to mitigate the effects of the pandemic on aquatic food sector and small-scale fisheries.

SELECTION OF CITATIONS
SEARCH DETAIL