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Intention to Use Mobile Augmented Reality in the Tourism Sector

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Computer Systems Science & Engineering 2021年第5期37卷 187-202页

作者： Malik Khlaif Gharaibeh Natheer Khlaif Gharaibeh Mohammad Ayoub Khan Waleed Abdel karim abu-ain Musab kasim Alqudah Faculty of Business Jadara UniversityIrbid21110Jordan College of Computer Science&Engineering at Yanbu Taibah UniversityYanbu41911Saudi Arabia College of Computing and Information Technology University of BishaBisha67714Saudi Arabia College of Community Taibah UniversityBadr46354Saudi Arabia

This article examines the main variables that influence the intention to use Augmented Reality(AR)applications in the tourism sector in *** study model has been constructed based on the unified theory of acceptance and the use of technology2(UTAUT2),by incorporating a new construct(aesthetics)to explore the usage intention of Mobile Augmented Reality in Tourism(MART).A questionnaire was used and distributed to a sample of 450 *** were analyzed using the Smart PLS version *** testing 12 hypotheses.29 measurement items were carefully reviewed based on previous studies that were selected to assess the research *** findings revealed that the proposed model elucidates 35.7%of the variance in the users’intention to use *** results also showed that both performance expectancy and aesthetics were found to be the most significant factors at level(0.001).Four variables,respectively,were at level(0.01)which consisted of social influence,facilitating conditions,hedonic motivation,and price *** weakest effect was effort expectancy at level(0.05).As the use of AR has become important for tourists,this study establishes a research base that can be built upon for future *** developers can benefit from the results of this research to design and deliver this service successfully and to ensure that its adoption by users is achieved.

关键词： Intention to use UTAUT2 aesthetics performance expectancy augmented reality social influence effort expectancy MART AR

Role of the CXCR4-SDF1-HMGB1 pathway in the directional migration of cells and regeneration of affected organs

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World Journal of Stem Cells 2020年第9期12卷 938-951页

作者： Nazmul Haque Ismail M Fareez Liew Fong Fong Chanchal Mandal Noor Hayaty abu kasim Kranthi RajaKacharaju Pratiwi Soesilawati Department of Oral Biology and Biomedical Sciences Faculty of DentistryMAHSA UniversitySelangor 42610Malaysia Biotechnology and Genetic Engineering Discipline Life ScienceKhulna UniversityKhulna 9208Bangladesh Faculty of Dentistry University Kebangsaan MalaysiaKuala Lumpur 50300Malaysia Faculty of Dental Medicine Universitas AirlanggaSurabaya 411007Indonesia Department of Conservative Dentistry Faculty of Dentistry MAHSA UniversitySelangor 42610Malaysia Department of Oral Biology Faculty of Dental MedicineUniversitas AirlanggaSurabaya 60115Indonesia

In recent years,several studies have reported positive outcomes of cell-based therapies despite insufficient engraftment of transplanted *** findings have created a huge interest in the regenerative potential of paracrine factors released from transplanted stem or progenitor ***,this notion has also led scientists to question the role of proteins in the secretome produced by cells,tissues or organisms under certain conditions or at a particular time of regenerative *** studies have revealed that the secretomes derived from different cell types contain paracrine factors that could help to prevent apoptosis and induce proliferation of cells residing within the tissues of affected *** could also facilitate the migration of immune,progenitor and stem cells within the body to the site of *** these different paracrine factors present within the secretome,researchers have given proper consideration to stromal cell-derived factor-1(SDF1)that plays a vital role in tissue-specific migration of the cells needed for *** researchers recognized that SDF1 could facilitate site-specific migration of cells by regulating SDF1-CXCR4 and/or HMGB1-SDF1-CXCR4 pathways which is vital for tissue *** in this study,we have attempted to describe the role of different types of cells within the body in facilitating regeneration while emphasizing the HMGB1-SDF1-CXCR4 pathway that orchestrates the migration of cells to the site where regeneration is needed.

关键词： C-X-C motif chemokine 12 Mesenchymal stem cells Monocytes Neutrophils Peripheral blood mononuclear cells Receptor for advanced glycation end products

Adaptive state estimation of groundwater contaminant boundary input flux in a 2-dimensional aquifer

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Journal of Groundwater Science and Engineering 2019年第4期7卷 373-382页

作者： Muhammad Malik Nauman Murtuza Mehdi Asif Iqbal Muhammad Saifullah abu Bakar Brahim Aissa Dk Nur Afiqah Jalwati Puteri Amer farhan Rafique Faculty of Integrated Technologies University Brunei DarussalamJalan Tungku LinkGadongBE1410Bandar Seri BegawanBrunei Darussalam Department of Mechanical Engineering NED University of Engineering and TechnologyPakistan College of Science and Engineering Hamad Bin Khalifa UniversityQatar Department of Aeronautical Engineering King Abdulaziz UniversityJeddahSaudi Arabia.

In many circumstances involving heat and mass transfer issues,it is considered impractical to measure the input flux and the resulting state distribution in the ***,the need to develop techniques to provide solutions for such problems and estimate the inverse mass flux becomes *** state estimator(ASE)is increasingly becoming a popular inverse estimation technique which resolves inverse problems by incorporating the semi-Markovian concept into a Bayesian estimation technique,thereby developing an inverse input and state estimator consisting of a bank of parallel adaptively weighted Kalman *** ASE is particularly designed for a system that encompasses independent unknowns and/or random switching of input and measurement *** present study describes the scheme to estimate the groundwater input contaminant flux and its transient distribution in a conjectural two-dimensional aquifer by means of ASE,which in particular is because of its unique ability to efficiently handle the process noise giving an estimation of keeping the relative error range within 10%in 2-dimensional *** simulation results show that the proposed estimator presents decent estimation performance for both smoothly and abruptly varying input flux *** also show that ASE enjoys a better estimation performance than its competitor,Recursive Least Square Estimator(RLSE)due to its larger error tolerance in greater process noise ***'s inherent deficiency of being slower than the RLSE,resulting from the complexity of algorithm,was also *** chosen input scenarios are tested to calculate the effect of input area and both estimators show improved results with an increase in input flux area especially as sensors are moved closer to the assumed input location.

关键词： Adaptive state estimation Aquifer Contamination Groundwater Kalman filter

Pulse width modulation voltage source deadtime effect on partial discharge and lifetime of inverter‐fed motor insulation

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High Voltage 2022年第6期7卷 1185-1193页

作者： Shakeel Akram Peng Wang Pengfei Meng Gian Carlo Montanari farhan Hameed Malik College of Electrical Engineering Sichuan UniversityChengduChina Center for Advanced Power Systems Florida State UniversityTallahasseeFloridaUSA Department of Electromechanical Engineering Abu Dhabi PolytechnicAbu DhabiUnited Arab Emirates

This paper analyses the impact of square wave pulse voltage deadtime on the partial discharge(PD)and the lifetime of turn-to-turn insulation.A bipolar repetitive pulse voltage with a deadtime of 0–10μs is produced using double half-bridge solid-state switches having push–pull technology controlled by a field-programmable gate *** mechanism of the discharge process at rising and falling edges of the pulse voltage before and after deadtime is analysed in *** discharge amplitude and PD probability at the rising/falling edges of the voltage waveform increase as the deadtime increases from 0 to 10μs due to the remanent *** number of PD and their intensity is higher at the first rising/falling edges of pulse voltage as compared to the second rising/falling edges for all deadtimes 0–10μ*** the deadtime increases beyond 2μs,the number of PDs increases and concentrates at a specific phase angle of rising/falling *** localise discharges degrade the insulation material and reduce its *** study helps to identify the inverter-fed motor insulation faults due to *** can provide guidelines to motor insulation designers to determine the limit value of deadtime to compensate PD and ensure the safer operation of such motors.

关键词： dead insulation inverter

The case of HyperLedger Fabric as a blockchain solution for healthcare applications

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Blockchain(Research and Applications) 2021年第1期2卷 41-55页

作者： McSeth Antwi Asma Adnane farhan Ahmad Rasheed Hussain Muhammad Habib ur Rehman Chaker Abdelaziz Kerrache Networks and System Research Theme Loughborough UniversityLoughboroughLE113TTUK Systems Security Group Coventry UniversityCoventryCV15FBUK Institute of Information Security and Cyber-Physical Systems Innopolis UniversityInnopolis420500Russia Center for Cyber Physical Systems Khalifa UniversityAbu Dhabi127788United Arab Emirates Laboratoire d’Informatique et de Mathematiques Universite de LaghouatLaghouat03000Algeria

The healthcare industry deals with highly sensitive data which must be managed in a secure *** Health Records(EHRs)hold various kinds of personal and sensitive data which contain names,addresses,social security numbers,insurance numbers,and medical *** personal data is valuable to the patients,healthcare service providers,medical insurance companies,and research ***,the public release of this highly sensitive personal data poses serious privacy and security threats to patients and healthcare service ***,we foresee the requirement of new technologies to address the privacy and security challenges for personal data in healthcare *** is one of the promising solutions,aimed to provide transparency,security,and privacy using consensus-driven decentralised data management on top of peer-to-peer distributed computing ***,to solve the mentioned problems in healthcare applications,in this paper,we investigate the use of private blockchain technologies to assess their feasibility for healthcare *** create testing scenarios using HyperLedger Fabric to explore different criteria and use-cases for healthcare ***,we thoroughly evaluate the representative test case scenarios to assess the blockchain-enabled security criteria in terms of data confidentiality,privacy and access *** experimental evaluation reveals the promising benefits of private blockchain technologies in terms of security,regulation compliance,compatibility,flexibility,and scalability.

关键词： blockchain Electronic healthcare records Feasibility study Healthcare Privacy Security Use-case

Level of Stress, Predisposing Factors and Status of Mental Health among Pharmacy Students of a Private University of Dhaka, Bangladesh: A Cross Sectional Study

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Health 2019年第2期11卷 222-232页

作者： A. H. M. Nazmul Hasan Md. Anzam Ul Islam Smaranika Rahman Zobaida Mostarin Nishi Md. Jakir Hossain Md. Zobayer Hossain Gorapi farhan Jamil Md. abu Sufian Zabun Nahar Kanij Nahar Deepa Md. Hamiduzzaman Md. Asaduzzaman Mohiuddin Ahmed Bhuiyan Department of Pharmacy University of Asia Pacific Dhaka Bangladesh

Stress during tertiary educational period has significant negative effect on the performance of a student. Mental distress is increasing among students and is one of the important public health concerns. This study was carried out to investigate the socio demographic characteristics of students, level of their stress feeling, and status of mental health and to find out the co-relation of different factors associated with the level of stress feelings. A cross sectional study was conducted among the students of the Department of Pharmacy of UAP. A total of 504 students (181 male students and 323 female students) participated in this study. Feeling of severe stress was almost equal to both sexes. But, moderate level of stress was more associated with female students (N = 253, F = 78.33%) and overall female students were more stressful than male. Thought towards future career ranked one among many reasons of stress in students (59.67% for male students and 37.46% for female students). In terms of academic achievements, feeling of stress was higher in female students compared to male students (34.98% for female students vs. 15.47% for male students). Other factors such as unrealistic expectations, family relationship and affairs, socio economic condition, being of too busy also significantly participate in the development of stress in young mind. Mental health status was estimated by considering some facts such as state of shock due to unwanted life events, lacking of expression of emotions, reduced feeling of pleasure, unusual thinking, fear of any specific objects, short term memory loss, self identity disorder and lack of self confidence. We co-related different risk factors like age, gender, socio-economic condition, unrealistic thought patter to different levels of stress feeling. Feelings of stress were most among the student of 21 - 25 years of age. Socio-economic condition is always a great factor of stress, middle class society has more stress compared to other

关键词： Stress Factors of Stress Mental Health