The purpose of this study is to investigate digital economy، electronic government and tax return system in Iran. Also، this study tries to investigate the models and scientific theses in this field such as unified theory of acceptance and use of technology (UTAUT) which are considered as the most important factors affecting this electronic service. Therefore، a model has been provided which consists of efficiency expectancy (profitability)، try expectancy (using facility)، social effects and back up conditions and tends to use electronic tax return (UTAUT) factors. The results show that factors affected by using this service are: try expectancy، social effects and efficiency expectancy respectively. Also the digital signature factor has a positive and significant effect on efficiency expectancy factor but not on try expectancy. Infrastructure- technical factor has a positive and significant effect on efficiency y

Information and communication technology (ICT) is a new paradigm in the field of education and learning. This study aimed to investigate the causal model of acceptance and use of information and communication technology by students of Tabriz University of Medical Sciences in educational and research purposes based on the UTAUT model. This research is based on the nature and general features, quantitative research; based on the purpose, applied research and based on the research method, descriptive-correlational research based on structural equation model (SEM). The statistical population of the study is 1500 students of Tabriz University of Medical Sciences. The statistical sample of this study is 306 persons selected by proportional stratified random sampling. The data collection tool is the translation and combination of the standard questionnaire of Venkatesh et al (2003) and Akbar (2013), which has been refined by the researcher based on the Unified Theory of Acceptance and Use of Technology. The validity of the questionnaire was confirmed based on content, face and structural validity. The reliability coefficient of the questionnaire was 0.86 based on Cronbachchr('39')s alpha coefficient. Data were analyzed using descriptive statistics (frequency, mean, standard deviation and Pearson correlation coefficient) and inferential statistics (path analysis of structural equation model) using SPSS and LISREL software. The results indicate that performance expectancy, Attitude toward using technology, social influences, facilitating conditions, and self-efficacy with the mediating role of behavioral intention have a positive and significant causal effect on studentschr('39') behavior in using technology. Effort expectancy with the mediating role of behavioral intention has no effect on studentschr('39') behavior in using technology. Anxiety with the mediating role of behavioral intention has a significant inverse causal effect on the behavior of students using technology.

Cloud computing technology as a new information and communication technology assists organization to change the use of production and it service. Meanwhile the organization managers by identifying their requires can experience outsourcing with the help of cloud computing knowledge. The aim of this study is to provide a model for information technology is based on cloud computing adaption. After studying literature and identify factors influencing the adoption of cloud computing on IT outstanding and composition the combination of theories related to the acceptance of innovation such as: Innovative of diffusion theory (IDT), Technology acceptance model (TAM) , framework Technology Organization Environment (TOE), Unified Theory of Acceptance and Use of Technology (UTAUT).The proposal model has been approved by experts in first step and manages and then it has been tested in IT Farhangestan honar. As a result of this study, knowledge of clerk, support of Mangers, security are the most important in cloud computing at out sourcing of IT which are helpful to the organization.

Modern governments nowadays have started to use information technology and information system as a tool for offering more suitable and influential services to citizens. Yet، if e-government services are not accepted and welcomed، such goals would not be materialized. This study tries to assess the effectiveness of factors influencing the acceptance of e-government through the Unified Theory of Acceptance and Use of Technology (UTAUT). The statistical population of this research is the students of Ferdowsi University of Mashhad and the sample volume is composed of 315 persons. A questionnaire was administered among them to collect the needed data. SPSS software and statistical methods such as multiple regression and logistic regression were employed to analyze the data. The findings asserted the effectiveness of three variables، namely performance expectancy، effort expectancy and peer influence on the students'' behavioral intentions. The findings also indicated that the variables of facilitating conditions and behavioral intention were significantly effective on the users’ using behavior. However، the moderating variables were not considerably effective in this research.

As mobile technology is continued to advance, a new platform of advertising known as mobile advertising (m-advertising) has been emerged. Earlier studies have provided no multi-dimensional vision from the perspective of personal, environmental, and technological factors and simultaneously a study discussing acceptance and use. Based on this logic, this research is aimed to discuss the factors affecting Behavioral Intention (BI) of users to use mobile advertising through an expansion of the United Theory of Acceptance and Use of Technology (UTAUT). The present research is descriptive-survey and its statistical population consists of the students of Kharazmi University. A total of 472 acceptable samples were collected using random sampling method. Moreover, the collected data were analyzed using structural equation modeling and confirmatory factor analysis. Findings of the research showed that Personal Innovation in Information Technology (PIIT), Perceived Enjoyment (PE), Social Influence (SI), Performance Expectancy (PE) and Compatibility (CMP) have a positive and significant effect on behavioral intention to use mobile advertising. Furthermore, Self-Efficacy (SEEF), Facilitating Conditions (FC), and Effort Expectancy (EE) have no effect on behavioral intention.

Today, augmented reality is one of the critical factors used in the tourism industry. In the world, the tourism industry uses augmented reality to attract users to tourist attractions. The intention to use augmented reality in mobile phones in the tourism industry depends on people's knowledge level, the users' attitudes, and the acceptance and use of technology. In Iran, the maturity of the application of these programs is at a low level, and Iran, as a tourist destination, needs to improve in introducing and branding the destination. Therefore, the research aims to investigate the impact of the integrated theory of technology acceptance and use, as well as the attitude and technological knowledge to use tourism augmented reality programs on mobile phones. The present research is based on a statistical population consisting of Iranian users of mobile augmented reality tourism applications, the size of which is Unlimited. The sample was taken using non-probability sampling and the sample size was determined using the Kline formula, resulting in a sample size of 216 individuals. The data collection tool is a questionnaire. A structural equation test was used to analyze the data. The results of the research showed that two factors (expectation of performance and expectation of effort) from the four main factors of technology acceptance theory have a positive and meaningful effect, and two factors (social influence and facilitating conditions) have a negative effect on the intention to use the program. have mobile phone augmented reality. On the other hand, the effect of knowledge and attitude towards augmented reality positively and significantly affects the intention to use mobile phone augmented reality programs.

The function of any technology in a society depends on the culture of that society. Organizational culture leads to a common understanding and agreement on institutional practices. Meanwhile، it is a powerful barrier to change، especially technological change. This study aims to determine the effect of indicators of organizational culture on the unified theory of acceptance and use of technology in hospitals of Rasht، Gilan Province. This is a cross-sectional، descriptive-analytic study. From April to July 2013، 235 questionnaires were completed by health، administrative، financial and educational personnel of Razi، Poursina، and Heshmat Hospitals. For data analysis، such tests as compound reliability test، root mean square of variance، bootstrap test، t-test، and hierarchical regression were applied using Lisrel، PLS and SPSS softwares. Among the components of organizational culture (performance expectancy، effort expectancy، subjective norm، and facilitating conditions)، there was a significant relationship only between «performance expectancy and facilitating conditions» and «behavioral inclination and using computers» (P<0. 0001). Gender played no role in the relationship between cultural components and the use of computers (P>0. 05). The results of the study indicate that there is a relationship between organizational culture and application of information technology، and that a unified organizational culture can facilitate and speed up the acceptance and application of information technology.

In recent years, Information technology has highly affected the banking industry and the distribution channels of banking services toward self-servicing alternatives. At the present time, many banks and financial institutions are actively developing new electronic products for their customers but since customers don’t adopt and use the services, they can not profit from these new services. The purpose of this study is to identify factors which influence the adoption and usage of the electronic banking services and determine amount effect of any of factors from customers’ point of view. We examine this adoption behavior by utilizing the unified theory of acceptance and use of technology (UTAUT) that integrates eight theories of individual acceptance into one comprehensive model. On the basis of survey research, a questionnaire was distributed among 200 Mellat bank customers (users of electronic banking services) in Mashhad. Statistical analysis by SPSS software indicates that three major factors can contribute to user’s intention to use: (a) performance expectancy (b) effort expectancy (c) social influence. And two factors: (d) intention to use (e) facilitating conditions, can contributed to users adopt and use of e-banking services.

Acceptance of information technology is very important for technology success in a community. Connected Vehicle Technology (CVT) is one of the new information technologies in Iran. forecasting the acceptance of this technology is very important for policy makers and investors. Thus, this paper based on UTAUT model of acceptance and a survey about taxi drivers tries to evaluate acceptance of Connected Vehicle Technology (CVT). for data analysing, using SPSS software, "t" test and ANOVA were used. briefly Results show that ragarding UTAUT model, performance expectancy and social influence are good but effect expectancy and facilitating conditions are not very good.

The advent of autonomous vehicles (AVs) revolutionized the future transportation system. Along with the potential benefits of this technology, new and unknown challenges in the field of transportation are emerging. One of the first steps in examining the impact of these devices is to identify latent variables that affect their acceptance. Most researchers have used the unified theory of acceptance and use of technology (UTAUT) to examine the latent variables influencing the acceptance of AVs, which is a combination of the previous eight theories of acceptance models but ignores some variables affecting acceptance. In this paper, a combination of UTAUT and diffusion of innovations (DOI) theory, and the latent variables of performance expectancy (PE), effort expectancy (EE), social influence (SI) (in UTAUT), and observability (OB), and trialability (TR) (in DOI) were examined. The results of the calibrated proposed model (for 338 samples obtained from the design and distributed questionnaire for this purpose in 2019 among the residents of Tehran) indicated that the PE and OB had the highest and least impact on the acceptance of AVs, respectively. The results of this study can be used by policymakers to address the barriers and challenges facing individuals to adopt this technology and thus benefit from its potential benefits.