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Geoderma ◽  
2022 ◽  
Vol 411 ◽  
pp. 115678
Alla Nasonova ◽  
Guy J. Levy ◽  
Oshri Rinot ◽  
Gil Eshel ◽  
Mikhail Borisover

Samsul Alam ◽  
Md. Minhajur Rahman

Popular social media Facebook-oriented social commerce (S-commerce), commonly known as Facebook commerce (F-commerce) has progressed towards a bevy business in Bangladesh. Many young people, especially at the age of 20-28, are now in this industry. The pandemic situation due to coronavirus disease 2019 (COVID-19) forces people to buy more from the online market because of the safety issue. People are getting more interested in the new trend of buying from an online store. The current study aims to explore the impact of COVID-19 on F-commerce, particularly in Bangladesh. It uses the non-probability purposive sampling method and collects 181 usable responses through an online questionnaire. A research model is developed following the social commerce acceptance model (SCAM), and structural equation model partial least square (SEM-PLS) using SmartPLS 3.0 is applied to find out and justify the result. Likert five-point scale for determining the independent variables, including COVID-19 awareness (CA), consumer behavior (CB), and purchase intention (PI), is used. The study result confirms that these three variables have a positive impact on F-commerce. The survey covers other measurable items that indicate some assumptions, which reflect F-commerce consumers’ behavior. The researchers recommend that F-commerce businesspeople must emphasize on mitigating trust issues and provide enhanced home delivery service.

2022 ◽  
Vol 16 (4) ◽  
pp. 1-19
Fei Gao ◽  
Jiada Li ◽  
Yisu Ge ◽  
Jianwen Shao ◽  
Shufang Lu ◽  

With the popularization of visual object tracking (VOT), more and more trajectory data are obtained and have begun to gain widespread attention in the fields of mobile robots, intelligent video surveillance, and the like. How to clean the anomalous trajectories hidden in the massive data has become one of the research hotspots. Anomalous trajectories should be detected and cleaned before the trajectory data can be effectively used. In this article, a Trajectory Evaluator by Sub-tracks (TES) for detecting VOT-based anomalous trajectory is proposed. Feature of Anomalousness is defined and described as the Eigenvector of classifier to filter Track Lets anomalous trajectory and IDentity Switch anomalous trajectory, which includes Feature of Anomalous Pose and Feature of Anomalous Sub-tracks (FAS). In the comparative experiments, TES achieves better results on different scenes than state-of-the-art methods. Moreover, FAS makes better performance than point flow, least square method fitting and Chebyshev Polynomial Fitting. It is verified that TES is more accurate and effective and is conducive to the sub-tracks trajectory data analysis.

2022 ◽  
Vol 193 ◽  
pp. 106678
Linh Nguyen ◽  
Dung K. Nguyen ◽  
Truong X. Nghiem ◽  
Thang Nguyen

2022 ◽  
Vol 6 (1) ◽  
pp. 53-63
Steph Subanidja ◽  
Fangky Antoneus Sorongan ◽  
Mercurius Broto Legowo

The study investigates the existence of a fintech entity that effect sustainable bank performance through competitive advantage and introduces a new fintech entity as an antecedent of competitive advantage and performance. Analysis of the causes of disturbance of the performance uses quantitative and qualitative approaches. The study uses 59 questionnaires returned from all 70 bank financial managers as a National Commercial Bank Association member. Five informants were selected from the Central Bank of Indonesia, the Financial Services Authority, the Indonesian Fintech Association, a bank business player, and the Commercial Bank Association Management. Using Partial Least Square, the results show that the fintech entity can drive sustainable bank performance, directly and indirectly, through competitive advantage. The existence of fintech is a dominant factor for achieving performance. From the informants, the results show that collaboration with a fintech entity is necessary and initially, the banks in running a business based on a perspective of experience. Moreover, Informants predicted that fintech and competitive conditions would significantly influence performance in the present and the future. Then, the implication is that fintech cannot be avoided but must be embraced as bank cooperation partners to sustain the performance. Doi: 10.28991/ESJ-2022-06-01-04 Full Text: PDF

Sonti Swapna

Abstract: A combination of multiple-input multiple-output (MIMO) systems and orthogonal frequency division multiplexing (OFDM) technologies can be employed in modern wireless communication systems to achieve high data rates and improved spectrum efficiency. For multiple input multiple output (MIMO) systems, this paper provides a Rayleigh fading channel estimation technique based on pilot carriers. The channel is estimated using traditional Least Square (LS) and Minimum Mean Square (MMSE) estimation techniques. The MIMO-OFDM system's performance is measured using the Bit Error Rate (BER) and Mean Square Error (MSE) levels. Keywords: MIMO, MMSE, Channel estimation, BER, OFDM

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Regina Mensah Onumah ◽  
Samuel Nana Yaw Simpson ◽  
Amoako Kwarteng

Purpose This paper aims to examine the effects of personal attributes (greed and desire for personal gains, behaviour of peers and superiors, personal values, family influences and pressures, religious background, ego strength, etc.), organisational attributes (company policies, codes of conduct and visionary leadership, etc). and the moderating role of ethical codes of conduct on the ethical attitudes of professional accountants. Design/methodology/approach The study uses data from a survey of 340 professional accountants in Ghana, using the ordinary least square regression analysis to test hypothesized relationships. Findings The results suggest that personal attributes collectively have positive and significant influence on ethical attitudes. Similarly, organisational attributes collectively have positive and significant influence on ethical attitudes. Moreover, ethical codes of conduct moderate the positive relationship between personal and organisational attributes and ethical attitudes of accountants. Originality/value In the light of the social contingent theory, the findings imply that personal and organisational attributes, when interacted with professional code of conduct strengthens ethical attitudes of accountants. To the best of the knowledge, this is the first paper to have examined the moderating effect of professional code of conduct on ethical attitudes of accountants from a developing country context.

2022 ◽  
Vol 9 (1) ◽  
pp. 222-236
Fatin Nabila Abd Razak ◽  
Vahid Nimehchisalem ◽  
Helen Tan ◽  
Geok Imm Lee ◽  
Ain Nadzimah Abdullah

Gardner’s (1985) in his socio-educational model introduced the variable of ‘integrativeness’ as a construct that focuses on English as a Second Language (ESL) learners’ attitudes towards the native English community. Later, Yashima (2002) proposed ‘international posture’ as an affective construct that re-examined ‘integrativeness’. Research conducted to reach a common operationalisation of ‘international posture’ is very limited. Hence, our objective in this study is to determine the level of each measurement construct under the affective variable of International Posture as well as to validate the measurement constructs of this variable among Malaysian undergraduates. In this quantitative study, 540 undergraduate students from a public university were selected. These students responded to a questionnaire that contained the four measurement constructs. For analysing the data, we used Partial Least Square-Structural Equation Modelling (PLS-SEM). Our results have proven that the International Posture among Malaysian undergraduates is high, and the measurement constructs of this variable are valid and can be operationalised in the Malaysian English language learning context. The scale validated in the study can contribute to future studies on this variable in the Malaysian English language learning context. 

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