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An Application of TAM and TRI on the Factors Affecting Internet Banking Adoption in Bangladesh
Md. Iftekharul AMIN(Md. Iftekharul AMIN ),Nafis ERFAN(Nafis ERFAN ),Mashrur NAVID(Mashrur NAVID ),Mohammed Shafiul Alam KHAN(Mohammed Shafiul Alam KHAN ),Md. Shariful ISLAM(Md. Shariful ISLAM ) 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.9
This study assesses the Internet banking adoption tendency by existing bank customers of Bangladesh. Currently, almost all the leading banks in the country have implemented Internet banking platforms. However, the active user count remains relatively low and there hasn’t been any conclusive research on the drivers and inhibitors of Internet banking. This study evaluates the reasons and quantitatively establishes the factors leading to the adoption and usage continuance of internet banking by existing bank customers. Responses from 460 bank account holders were collected via online questionnaires using a purposive sampling approach, and a core conceptual framework based on Technology Acceptance Model (TAM) and Technology Readiness Index (TRI) was used. The study concluded that internet banking adoption is significantly impacted by the ease of use, customer service, and technology familiarity. Similarly, customer satisfaction is affected by the perceived value and the perceived risk. Through regression analysis, it was found that usage continuance is 89% explained by adoption and customer satisfaction. Multi-group moderation showed significant impact by groups divided based on usage frequency, income level, and age. Perceived risk weakened the impact of perceived value and technology familiarity on usage adoption. Additionally, perceived risk reduced the impact of consumer satisfaction and usage continuance.
Adsorption capability of activated carbon synthesized from coconut shell
Md Shariful Islam,Bee Chin Ang,Samira Gharehkhani,Amalina Binti Muhammad Afifi 한국탄소학회 2016 Carbon Letters Vol.20 No.-
Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller surface area of the synthesized activated carbon was found to be 1640 m2/g with a pore volume of 1.032 cm3/g. The average pore diameter of the activated carbon was found to be 2.52 nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which indicate a perfect crystallite structure. The field emission scanning electron microscopy image showed the presence of well-developed pores on the surface of the activated carbon. The presence of important functional groups was shown by the Fourier transform infrared spectroscopy spectrum. The adsorption of methyl orange onto the activated carbon reached 100% after 12 min. Kinetic analysis indicated that the adsorption of methyl orange solution by the activated carbon followed a pseudo-second-order kinetic mechanism (R2 > 0.995). Therefore, the results show that the produced activated carbon can be used as a proper adsorbent for dye containing effluents.
Md. Rashed-Al-Mahfuz,Mohammad Ali Moni,Pietro Lio’,Sheikh Mohammed Shariful Islam,Shlomo Berkovsky,Matloob Khushi,Julian M. W. Quinn 대한의용생체공학회 2021 Biomedical Engineering Letters (BMEL) Vol.11 No.2
Medical practitioners need to understand the critical features of ECG beats to diagnose and identify cardiovascular conditionsaccurately. This would be greatly facilitated by identifying the signifi cant features of frequency components in temporalECG wave-forms using computational methods. In this study, we have proposed a novel ECG beat classifi er based ona customized VGG16-based Convolution Neural Network (CNN) that uses the time-frequency representation of temporalECG, and a method to identify the contribution of interpretable ECG frequencies when classifying based on the SHapleyAdditive exPlanations (SHAP) values. We applied our model to the MIT-BIH arrhythmia dataset to classify the ECG beatsand to characterise of the beats frequencies. This model was evaluated with two advanced time-frequency analysis methods. Our results indicated that for 2-4 classes our proposed model achieves a classifi cation accuracy of 100% and for 5 classes itachieves a classifi cation accuracy of 99.90%. We have also tested the proposed model using premature ventricular contractionbeats from the American Heart Association (AHA) database and normal beats from Lobachevsky University Electrocardiographydatabase (LUDB) and obtained a classifi cation accuracy of 99.91% for the 5-classes case. In addition, SHAP valueincreased the interpretability of the ECG frequency features. Thus, this model could be applicable to the automation of thecardiovascular diagnosis system and could be used by clinicians.
Research Trends in Library and Information Science in Bangladesh: An Analytical Study
Islam, Md. Shariful,Islam, Md. Nazmul,Mondal, Madhob Korea Institute of Science and Technology Informat 2018 Journal of Information Science Theory and Practice Vol.6 No.2
The utmost intention of this work is to identify various field areas which are most prevalent in library and information science education. The study also denotes the rate of tendency on the rapid growth and development of research production among information specialists in Bangladesh. In order to carry out the study, an extensive literature review was carefully done to collect the basic elements of research patterns. It is noted that in the period of 1980-2016, 200 articles were published in library and information science by Bangladeshi researchers in 62 journals. In this article a total of 200 articles were reviewed. The result of the present study shows that the ratio of female authors had fewer contributions than male authors did. The majority of articles were published from the United Kingdom. The study also shows that the largest numbers of articles (19 papers, 9.50%) were published in the Social Science Journal of the University of Rajshahi from Bangladesh. The paper also shows that about 71.50% of papers have been cited while 28.50% of papers did not receive any citation. The present research might be helpful for revealing the country's research trends in library and information science. However, this study may also inspire development of a subject-based indigenous database and can act as an important device for research scholars.
eMCCA: An Enhanced Mesh Coordinated Channel Access Mechanism for IEEE 802.11s Wireless Mesh Networks
Md. Shariful Islam,무하마드마흐법알람,홍충선,이성원 한국통신학회 2011 Journal of communications and networks Vol.13 No.6
In this paper, we present a channel access mechanism,referred to as the enhanced mesh coordinated channel access (eMCCA)mechanism, for IEEE 802.11s-based wireless mesh networks. The current draft of IEEE 802.11s includes an optional medium access control (MAC), denoted as MCCA, which is designed to provide collision-free and guaranteed channel access during reserved periods. However, the MCCA mechanism fails to achieve the desired goal in the presence of contending non-MCCA nodes; this is because non-MCCA nodes are not aware of MCCA reservations and have equal access opportunities during reserved periods. We first present a probabilistic analysis that reveals the extent to which the performance of MCCA may be affected by contending non-MCCA nodes. We then propose eMCCA, which allows MCCA-enabled nodes to enjoy collision-free and guaranteed channel access during reserved periods by means of prioritized and preemptive access mechanisms. Finally, we evaluate the performance of eMCCA through extensive simulations under different network scenarios. The simulation results indicate that eMCCA outperforms other mechanisms in terms of success rate, network throughput, end-to-end delay, packet-loss rate, and mesh coordinated channel access opportunity-utilization.
eMCCA: An Enhanced Mesh Coordinated Channel Access Mechanism for IEEE 802.11s Wireless Mesh Networks
Islam, Md. Shariful,Alam, Muhammad Mahbub,Hong, Choong-Seon,Lee, Sung-Won The Korea Institute of Information and Commucation 2011 Journal of communications and networks Vol.13 No.6
In this paper, we present a channel access mechanism, referred to as the enhanced mesh coordinated channel access (eMCCA) mechanism, for IEEE 802.11s-based wireless mesh networks. The current draft of IEEE 802.11s includes an optional medium access control (MAC), denoted as MCCA, which is designed to provide collision-free and guaranteed channel access during reserved periods. However, the MCCA mechanism fails to achieve the desired goal in the presence of contending non-MCCA nodes; this is because non-MCCA nodes are not aware of MCCA reservations and have equal access opportunities during reserved periods. We first present a probabilistic analysis that reveals the extent to which the performance of MCCA may be affected by contending non-MCCA nodes. We then propose eMCCA, which allows MCCA-enabled nodes to enjoy collision-free and guaranteed channel access during reserved periods by means of prioritized and preemptive access mechanisms. Finally, we evaluate the performance of eMCCA through extensive simulations under different network scenarios. The simulation results indicate that eMCCA outperforms other mechanisms in terms of success rate, network throughput, end-to-end delay, packet-loss rate, and mesh coordinated channel access opportunity-utilization.
Hypothetical protein predicted to be tumor suppressor: a protein functional analysis
Kader, Md. Abdul,Ahammed, Akash,Khan, Md. Sharif,Ashik, Sheikh Abdullah Al,Islam, Md. Shariful,Hossain, Mohammad Uzzal Korea Genome Organization 2022 Genomics & informatics Vol.20 No.1
Litorilituus sediminis is a Gram-negative, aerobic, novel bacterium under the family of Colwelliaceae, has a stunning hypothetical protein containing domain called von Hippel-Lindau that has significant tumor suppressor activity. Therefore, this study was designed to elucidate the structure and function of the biologically important hypothetical protein EMK97_00595 (QBG34344.1) using several bioinformatics tools. The functional annotation exposed that the hypothetical protein is an extracellular secretory soluble signal peptide and contains the von Hippel-Lindau (VHL; VHL beta) domain that has a significant role in tumor suppression. This domain is conserved throughout evolution, as its homologs are available in various types of the organism like mammals, insects, and nematode. The gene product of VHL has a critical regulatory activity in the ubiquitous oxygen-sensing pathway. This domain has a significant role in inhibiting cell proliferation, angiogenesis progression, kidney cancer, breast cancer, and colon cancer. At last, the current study depicts that the annotated hypothetical protein is linked with tumor suppressor activity which might be of great interest to future research in the higher organism.
Al-Mamun, Md. Abdulla,Kusumoto, Yoshihumi,Mihata, Aki,Islam, Md. Shariful,Ahmmad, Bashir Korean Society of Photoscience 2009 Photochemical & photobiological sciences Vol.8 No.8
Gold colloidal nanoparticles were prepared by the liquid laser ablation of a gold metal plate in water and also by the citrate reduction of $HAuCl_4{\cdot}4H_2O$. The gold colloidal nanoparticles with the plasmonic band strongly absorb light, which is converted to the photothermal energy. This photothermal energy gives a cytotoxic effect on epithelial carcinoma cells. Interestingly, we found that the size and shape of the nanoparticles are changed by light during the photothermal process in vitro. The cervical carcinoma cell line (HeLa cell) was incubated with the colloidal gold nanoparticles and then exposed to continuous visible light at 400-600 nm with UV- and heat-cutoff filters. The distinct cell-killing effect was observed by this procedure. In the absence of the gold colloidal nanoparticles, only a small amount of cells were photothermally destroyed.