• Home
  • Arak University
    • List of Articles Arak University

      • Open Access Article

        1 - Evaluation of information seeking behavior of Arak University faculty members in using the Internet
        yaghob noorozi mehdi talkhabi mehdi alipoorhafezi
        Purpose: The main object of this research is to evaluate information seeking behavior of Arak University faculty members in using the Internet. Furthermore, this research examines differences between information seeking behavior among humanities, natural sciences, engin More
        Purpose: The main object of this research is to evaluate information seeking behavior of Arak University faculty members in using the Internet. Furthermore, this research examines differences between information seeking behavior among humanities, natural sciences, engineering and agricultural science; as well as examines relation between factors such as computer skills and its impact on information searching behavior; sexuality and its relation with the rate of computer using. Methodology: The research method in this research is survey method. The faculty members of Arak University constitute the popularity of this research. Also, questionnaire is the research's information gathering tool. Findings: The findings of research showed that most important aim of information search among faculty members are research purpose, educational and updating special information, and most uses belong to electronic magazines and databases. Web, e-mail and chat rooms are most important possibilities of Internet, and search engines, address of information sources and metasearch engines are the most effective search tools. Also, advanced searching, keyword searching and simple searching are most using methods for information searching in the Internet. The network traffic and low speed of Internet are main difficulties in using of this technology. Furthermore, they mentioned that the network traffic, low speed of accessing to the Internet and the lack of access to the original files are their main challenges in using the Internet technology. Conclusion: The information seeking behavior of faculty members are different. There is a significant relation between information resources and verbal skill variables, and also between the rate of using the Internet and sex variable. Manuscript profile
      • Open Access Article

        2 - The effect of mycorrhizal fungi, water stress and year on flower yield and some characteristics of medicinal plant of Borage (Borago officinalis L.) in Yasouj region
        Ali Rahimi
        Identifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal More
        Identifying the critical time and timing of plant irrigation based on a precise and basic plan is the key to water conservation, improvement of irrigation operations and plant tolerance to water shortage in agriculture. In recent years, vesicular arbuscular mycorrhizal fungi have been used in many plants to deal with dehydration and drought stress. In this regard, an experiment was conducted as split-plot in the form of randomized complete block design with 3 replications in the Yasuj region at years 2015 and 2016. Water stress was considered as the main factor in the form of irrigation after 30, 60, 90, 120 and 150 mm of evaporation from the evaporation pan class A and mycorrhizal fungus was considered as a secondary factor in the form of no application, application of Glomus mosseae and application of Glomus intraradices. The results showed that the interaction of irrigation and mycorrhizal fungi on flower phosphorus, flower yield, biological yield and water use efficiency of Borage was significant. In irrigation levels after 60, 90, 120 and 150 mm of water evaporation from the evaporation pan, the use of mycorrhizal fungi Glomus mosseae and Glomus intraradices compared to the absence of fungi respectively increased the yield of plant flowers (30.04% and 27.35 %), (90.2% and 90.98%), (93.21% and 94.1%) and (81.73% and 78.86%), also, at these levels of irrigation, biological yield and water use efficiency of Borage flower achieved a significant increase in the presence of mycorrhizal fungus, compared to the absence of mycorrhizal fungus application. Application of both strains of mycorrhizal fungus Glomus mosseae and Glomus intraradices in irrigation levels after 90, 120 and 150 mm of water evaporation from the evaporation pan compared to no application of mycorrhizal fungus, respectively, resulted in a significant increase in the harvest index of Borage flower (44.55% and 43.36%), (13.21% and 15.96%) and (5.6% and 5.41%) and flower phosphorus (44.69% and 20.45%), (150% and 125%) and ( 267.74% and 235.48%). Mycorrhizal fungus was able to moderate the negative effects of drought stress and increase the above-mentioned traits in those irrigation levels, and based on the results of this study, irrigation treatment after 90 mm of water evaporation from the evaporation pan + the use of Glomus mosseae mycorrhizal fungi is recommended. Manuscript profile