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Articles by Mohammad Jafari
Total Records ( 4 ) for Mohammad Jafari
  Mohammad Jafari
  Studies conducted in the country, do not have a strong theoretical framework to evaluate the acceptance of e-Commerce, therefore, this study combined the two models “technology acceptance” and “planned behavior” for a model with higher predictive power which they are the strongest theoretical models available with each other. Then, factor “trust” and “organizational factors” (consisting of three factors “profile information systems specialists”, “corporate identity” and “leader”) was added to the model, taking into account conditions industries for localization and increasing the efficiency of the model. In addition, a questionnaire was prepared, according to the literature to evaluate the model and it was sent to managers of micro and small companies in the industry. The model derived were analyzed, after collecting data, migrate by SPSS and PLS. The results of the research showed that organizational factors had on the acceptance of e-Commerce, the greatest impact. In this study, all factors were influential with the exception of “norms”.
  Mohammad Jafari
  Create a new competitive environment in the banking industry, makes the need for more attention to the demands, needs and expectations of our customers and offer consistent service and beyond their expectations, inevitable. Banks should be able to changes in procedures and policies of their marketing, they meet the expectations and needs of customers, otherwise, they have no place in the financial market in the future in contrast, their age and experience. This study has been done as the effect elements of the marketing mix of services to customer preferences in selecting a bank in Khorramabad City in 2011 in the branches of Saderat bank which this study has been investigated with the 8 hypothesis in relation to each of the marketing mix and relevant indicators and to identify and assess their importance. This research is part of applied research in terms of purpose and this research is a descriptive research, in terms of the nature and procedures. The populations of this study are all normal customers of Saderat bank branches in Khorramabad. That we used a sample of 150 customers from different branches of Saderat bank in the city of Khorramabad to test the hypothesis, they were selected randomly. We used the method library and a questionnaire to collect data.
  Ali Tavili , Habib Yazdanshenas , Mohammad Jafari , Hossein Azarnivand and Hossein Arzani
  Background and Objective: Changing the plant's architecture root system in the face of environmental stress is one of the most important mechanisms for adaptation of plants and drought stress and salinity are the most important factors that plants should be resistant against them in term of root morphophysiological changes. Therefore, the aim of this research was an assessment of the root morpho-physiological change of the Iranian medicinal endemic Stachys multicaulis under environmental stress. Materials and Methods: Drought treatments included 3 day intervals irrigation periods and a set of salinity (0, 5 and 25 ds m1) were used at a completely randomized design in three different soil textures in pots. Morphological changes of plant's root under stress in three soil texture were studied over the time. Results: Drought and salinity had a distinguish effect on plant root properties based on soil texture. Root length and volume increased along with the increasing the severity of drought in three light, medium and heavy soil textures. But root length and volume decreased along with the increasing the severity of salinity (p<0.05). The plant's root length was 24, 10 and 17 cm, respectively for drought, salinity and control sample in heavy soil. Both salinity and drought stress, also had a positive effect on root density (r2 = 0.56, 0.30 and 0.68 for light, medium and heavy soil textures, respectively under salinity stress). Conclusion: This study indicated that morpho-physiological changes of the S. multicaulis's root under salinity and drought stress is closely dependent on physical properties of the soil.
  Mohammad Jafari , Shahram Fattahi and Mehdi Khodaei
  This study attempted to calculate the government’s fiscal policy index in the Iranian economy using the quarterly data from 1988-2012 in a model consisting of a combination of the Factor-Augmented Vector Autoregressive (FAVAR) and the Time-Varying Parameter (TVP) models. In this modeling, the variables of GDP growth, investment growth, inflation, exchange rate changes, private consumption expenditure growth and the government’s fiscal policy entered the model as latent variables. Based on the results of the study, it was found that the proposed model led to better accuracy in modeling the Iranian fiscal policy index compared to the two-stage FAVAR Model proposed by Doz and the Principal Component Analysis (PCA) Model.
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