درخت حوزه‌های تخصصی

Information technology by removing the barriers and omitting geographical boundaries washes out the physical distances and dissolves many problems. But at the same time this concern is existed that information technology causes more separation between social classes and so creates a society that divides into two groups that one group is "possessed" and the other "do not possessed" the technology. Accordingly, one of the main challenging issues that social universe has encountered with, is inequality of information and communication technology indicators among regions, which called "digital gap". In order to achieve standard development and to provide geographical and spatial justice, removing the digital gap between regions, and equal and public accessibility of geographical units must be considered as the main priority of planning in field of ICT. The presented research by purpose of spatial analysis and ranking of counties in Isfahan province tries to improve information and communication technology and reduce digital gap. The research method is descriptive- analytic and for ranking and rate of difference among counties the Topsis algorithm is used. The results show that level of possessing ICT was not equal among counties in a way that counties divided into four groups of very high, medium, low and very low, that only the counties of Isfahan is located in very high  group. The dispersal coefficient between counties is 5% that confirms the difference in spatial distribution of indicators. And also there is a direct relationship between development of ICT and population and urbanization percentage, in a way that most of facilities are located in a counties with high percentage of urbanization. At the end some solution is suggested in order to remove the digital gap between counties.

Abstract The aim of the present study was investigating the effectiveness of Transcranial Direct Current Stimulation (tDCS) on neurocognitive performance in people with mild neurocognitive impairment. Using meta-analysis and integrating the research results, this study has specified the extent of the effect of Transcranial Direct Current Stimulation on improvement of neurocognitive function in people with mild neurocognitive impairment. Method: For meta-analyses Magiran, SID, and Irandoc databases were used to search Persian articles and Science direct, Scopus, and PubMed databases were used to find foreign articles, using ‘MCI’, ‘transcranial direct current stimulation’, tDCS, and ‘mild cognitive impairment’ key words for foreign articles and their Persian equivalents for Persian articles. Of the 29 studies, 11 that were methodologically acceptable were meta-analyzed. The research tool was a meta-analysis checklist. Results: The results of meta-analysis indicated publication bias in the studies. Due to the heterogeneity of the studies, a random effect model was used. The effect of Hedges for the impact of Transcranial Direct Current Stimulation on neurocognitive functions in people with mild neurocognitive impairment was 0.26, which is a large effect. Conclusion: This result shows clinicians can choose transcranial direct current stimulation (tDCS) as effective intervention for patients who suffer from mild cognitive impairments. More investigations are necessary to find the cognitive benefits of using transcranial direct current stimulation in elderly people and other cognitive impaired persons.

This paper highlights key characteristics of the current mindset identified as responsible for increasing costs (private and public) associated with tourism industry expansion globally. It then identifies common elements of an alternative paradigm, contrasting its features with those of the established paradigm. It then identifies the implications of the new mindset for the attitudes and behaviour of major stakeholders in tourism-government/destination management organisations, operators, and tourists, as well as researchers. Unless a good proportion of individuals in each of these stakeholder groups change their attitudes and behaviour, no paradigm shift will succeed and the ‘business as usual’ scenario for tourism will prevail, along with its increasing social costs. The paper concludes by addressing the implications for behaviour by different groups of stakeholders.

Despite the critical relationships among pragmatic action, context, and linguistic vs. non-linguistic resources for producing various adjacency pairs in foreign or second language (L2) exchanges, their interplay has not been adequately investigated. Therefore, the present study examined these relations in the production of request-refusal adjacency pairs. The needed data were collected from 108 upper-intermediate to advanced EFL learners. Three hundred conversations were audio-recorded from learners’ role-plays that involved making request-refusal adjacency pairs. MAXQDA software was used for data transcription, codification, and analysis. Data analysis revealed that request-refusal adjacency pairs were co-constructed in discursive contexts through multiple turns using both linguistic and nonlinguistic turn construction units (TCUs). Learners significantly used more linguistic rather than nonlinguistic TCUs and more sentential and clausal TCUs than phrasal and lexical TCUs. Moreover, the use of pauses and continuers was significantly more than laughter, facial expression, and body language. These findings have some pedagogical implications for teachers to raise learners’ awareness of context, action, and linguistic and nonlinguistic TCUs in the production of speech act adjacency pairs.

Volunteers are valuable resources for sports organizations. Most of the sports organizations need to identify and employ the volunteers simultaneously in order to continue their activities. The present study made an effort to identify the requirements and functions of ambidextrous management of sports volunteers. Considering this aim, the meta-synthesis research method was used to carry out the study. More specifically, based on the process of the meta-synthesis research method, at the first stage, 312 papers were identified by searching the relevant databases. At the second phase, 55 papers were selected by screening the identified papers. Finally, the model of the study was developed by analyzing the selected papers. The model involved five ambidextrous requirement categories including the managerial, organizational, physical, strategic values, and motivational categories. Moreover, it comprised three ambidextrous function categories including empowering measures, opportunity-creating measures, and motivating measures categories. The sports managers can focus on the ambidextrous management requirements and the ambidextrous management functions including the empowering measures, opportunity-creating measures, and motivating measures in order to use the ambidextrous sports voltmeter management system and to exploit these human resources to achieve the goals of their organizations.