ABSTRACT
Objective: Online education is a relatively new phenomenon in Bangladesh. Gathering data online during the early days of the COVID-19 pandemic, this study examines the response, readiness and challenges of online education in the Bangladeshi context. Method: Data were collected by applying qualitative approaches such as focus group discussions and in-depth interviews with purposively selected students and teachers involved in online education at two public and three private universities. Results: The findings reveal an immediate response from some universities and late or no action from others in continuing education during the pandemic. Since teachers, students or the university administration were unprepared for such a situation, there was a shortage of or creation of initiatives, although a certain degree of success was noticed. Major challenges include the lack of appropriate technology, knowledge of technology use, teachers' inadequate skills in operating the system and motivating students, poor Internet facilities and high Internet costs, and absence of a calm environment at students' homes. Conclusion: Steps such as workshops for teacher development, improvement of technology and facilities, subsidies in Internet use, revisits to higher education and emergency education laws, and assistance from other professionals and institutions are proposed for consideration. KEY POINTS What is already known about this topic: A number of higher educational institutions (HEIs) worldwide have introduced online education, and have been continuing teaching–learning activities online from the onset of the COVID-19 pandemic. HEI teachers in developed countries have prior training and experience in conducting online education;however, several pedagogical, technical and management-related challenges have been identified. HEIs in Bangladesh do not have a specific policy regarding continuing education in an emergency. This is the first time that online education has been launched. What this study adds: This study explores how HEIs, particularly teachers, respond to continuing teaching–learning activities. It illustrates teachers' pedagogical, technical and management-related readiness necessary for online education. This study also identifies several challenges in continuing online teaching–learning activities in Bangladesh HEIs. © 2021 Australian Psychological Society.
ABSTRACT
Objective: Online education is a relatively new phenomenon in Bangladesh. Gathering data online during the early days of the COVID-19 pandemic, this study examines the response, readiness and challenges of online education in the Bangladeshi context. Method: Data were collected by applying qualitative approaches such as focus group discussions and in-depth interviews with purposively selected students and teachers involved in online education at two public and three private universities. Results: The findings reveal an immediate response from some universities and late or no action from others in continuing education during the pandemic. Since teachers, students or the university administration were unprepared for such a situation, there was a shortage of or creation of initiatives, although a certain degree of success was noticed. Major challenges include the lack of appropriate technology, knowledge of technology use, teachers' inadequate skills in operating the system and motivating students, poor Internet facilities and high Internet costs, and absence of a calm environment at students' homes. Conclusion: Steps such as workshops for teacher development, improvement of technology and facilities, subsidies in Internet use, revisits to higher education and emergency education laws, and assistance from other professionals and institutions are proposed for consideration.
ABSTRACT
The worldwide spread of COVID-19 has marked a devastating impact on the global economy and public health. One of the significant steps of COVID-19 affected patient's treatment is the faster and accurate detection of the symptoms which is the motivational center of this study. In this paper, we have analyzed the performances of six artificial deep neural networks (2-D CNN, ResNet-50, InceptionResNetV2, InceptionV3, DenseNet201, and MobileNetV2) for COVID-19 detection from the chest X-rays. Our dataset consists of 2905 chest X-rays of three categories: COVID-19 affected (219 cases), Viral Pneumonia affected (1345 cases), and Normal Chest X-rays (1341 cases). Among the implemented neural networks, ResNet-50 demonstrated reasonable performance in classifying different cases with an overall accuracy of 96.91%. Most importantly, the model has shown a significantly good performance in detecting the COVID-19 cases in the test dataset (Precision = 1.00, Sensitivity = 1.00, Specificity = 1.00, and F1-score = 1.00). Therefore, among the deep neural networks presented in this paper, ResNet-50 can be adapted as a reliable method for faster and accurate COVID-19 affected case detection. © 2020 IEEE.
ABSTRACT
Infectious bronchitis virus (IBV) infection is highly infectious respiratory disease in poultry industry with significant economic importance. The prevalence of IBV in quail industry in Malaysia was not well documented; therefore, its actual role in the epidemiology of the disease is relatively unknown. This study was to determine the susceptibility of Japanese quail, as one of the species in commercial poultry industry, toward IBV. In addition, it will also give a potential impact on the overall health management in the quail industry even though it had been established that quail are resistant to diseases affecting poultry. Moreover, to the best of our knowledge, it is the first experimental study on IBV inoculation in quail. In this experimental study, 20 quails were divided into 4 groups (n = 5 for group A, B, and C, n = 5 for control group). The quails in group A, B, and C were infected via intraocular and intranasal routes with 0.2 mL of 10 × 5 EID50 of the virus. Clinical signs, gross lesions, positive detection of virus, and trachea histopathological scoring were used to assess the susceptibility of these Japanese quails. The results have indicated mild ruffled feathers and watery feces in these inoculated birds. Trachea, lung, and kidney were subjected to one-step reverse transcription polymerase chain reaction for virus detection. The virus was found from trachea and lung samples, whereas it was absent from all kidney samples. Only 3 quails were found with gross lesions. There was a significant difference of tracheal lesion by 0.009 ± 0.845 (P < 0.05) within the treatment groups. In summary, Japanese quails might be susceptible to IBV.