فهرست مطالب fereshteh alizadeh

Ensuring food security in developing countries is highly challenging due to low productivity of the agriculture sector, degradation of natural resources, crop losses, less value addition, and high population growth. therefore, researchers are striving to adopt newer technologies to increase the supply of agricultural products. one of these technologies is nanotechnology. Nanotechnology is the science of producing, manufacturing and using materials at the atomic and molecular levels and it can transform various industries, including the agricultural industry, with the help of new tools. Nanotechnology By using new materials such as nanofertilizers, nanoherbicides, nanopesticides, etc., strengthens the soil and increases the growth of plants and with the help of new tools such as nano-sensors and intelligent delivery systems, identifies pathogenes in plants.  For these reasons nanotechnology can be a promising way to increase the productivity of agricultural products.

The main aim of this study is to identify the dimensions and components of knowledge commercialization in the Iranian higher education system using thematic analysis and DEMATEL technique. The method of present study was mixed (qualitative-quantitative). The statistical population of the study included experts who have scientific and practical experiences on the subject. They were identified by the snowball method. In the first and qualitative step, in addition to documentary study, after 16 interviews, theoretical saturation was obtained. Also, thematic analysis technique and MAXQDA12 software were used to identify the dimensions, components and indicators. To assess the validity of the interviews, the opinions of 2 colleagues were used. Finally, basic, organizing and comprehensive themes were extracted. In the quantitative section, DEMATEL technique was used to determine the impact and effectiveness of the dimensions of knowledge commercialization in the Iranian higher education system. According to semi-structured interviews, 6 dimensions (environmental factors, organizational structure, mental characteristics of knowledge creators, characteristics of created knowledge, characteristics of knowledge consumers and type of knowledge) and 25 components (organizing themes) and 87 indicators (basic themes) were extracted for the knowledge commercialization in the Iranian higher education system. Then, according to the pairwise comparison questionnaire to identify effective and influential dimensions, it was found that the characteristics of knowledge consumers, organizational structure, environmental factors, characteristics of created knowledge, type of knowledge and mental characteristics of knowledge creators, respectively, have higher importance.

The present study was conducted with the aim of predicting the marital adjustment of couples based on basic psychological needs and narcissism. The method of the current research was a correlational description. The statistical population included all married students of the Azad University of Electronics Department and Tehran Center Department in the academic year 2021-2022. For this purpose, 223 students were selected by the available sampling method and responded to Spanier's dyadic adjustment scale (DAS) (1976), Desi and Ryan's basic psychological needs scale (BPNS) (2001), and narcissistic personality scale (NPS) Raskin ana  Tery (1988). The data were analyzed by Pearson's correlation coefficient and simultaneous regression. The results showed that there is a positive and significant relationship between autonomy, communication, competence, and marital compatibility of couples (p<0.05), but there is no significant relationship between narcissism and marital compatibility (p>0.05). Also, the results of regression analysis showed that basic psychological needs explain about 0.22% of the variance of the dependent variable. Based on the findings, it can be said that basic psychological needs, especially autonomy, play an essential role in the marital compatibility of couples.

Preparing the required contexts for the commercialization of knowledge, while harmonizing domestic universities with international missions, can play a momentous role in creating economic and social values. The present research aimed to offer a model of knowledge commercialization in the country's higher education system. The current study was applied in terms of its purpose and descriptive in terms of its method. The statistical population comprised 10,153 faculty members of the Islamic Azad University of Tehran. 371 people had been selected as samples using the relative stratified sampling method, based on Cochran's formula. A researcher-made questionnaire with 121 questions was used to collect data. The reliability of the questionnaire was evaluated by Cronbach's alpha coefficient of 0.802 and validity of the questionnaire were confirmed by experts. Regarding the normality of the data distribution, parametric tests and structural equations, and SPSS and Smart PLS software were used to analyze the data. While confirming the importance and desirability of all dimensions, the findings of the current research were prioritized as follows: In the dimensions section: the mental characteristics of knowledge creators with a coefficient of 0.939, the characteristics of created knowledge with a coefficient of 0.918, the characteristics of knowledge consumers with a coefficient of 0.917, knowledge type with a coefficient of 0.911, environmental factors with a coefficient of 0.891 and organizational structure with a coefficient of 0.884 were ranked from the first to the sixth priority, respectively. Likewise, regarding the results of the research, the dimensions of the mental characteristics of the knowledge creators, the component of specialized knowledge, and the indicator of belief in the goodness of knowledge had been placed as the first priority of each level, which should be considered in plans related to commercialization. The validity of model was also analyzed with the method of structural equations and 4 dimensions (understanding, adaptation, generalization, and control), which was confirmed by good fit and high average.

Demographic prediction indicates that Iran population move towards an aged society until 2025, Hence, the need for medical care will be increased. The study aimed at predicting geriatric specialists based on dynamic system approach for the Iranian elderly.
After an exploratory study, data gathering and building similar structured in order to determine geriatrics number prediction by considering the important factors. Causal loop diagram to show relationship between variables, stock-flow diagrams for quantitative analysis of system dynamic behavior was conducted and model equations in Vensim software version 5 used.
After simulation, intake student's simulated model revealed increased trend then a sharp decline and finally the pattern had fixed trend from 2009 to 2012. Pattern of physician who was still in study and also graduated physician was in growing trend. Employed physician had growing trend and then it fixed, and retired physician had fixed trend at first and then had an incremental trend. Finally, the various behavior of workforce assessed in three level.
According to increasing growth of the elderly population until 2025, we will encounter with shortage more than 2500 geriatrics which can be compensate by 50% graduated admissions of the major annually.