Iran Encyclopedia Compiling Foundation

Sari, Iran

Iran Encyclopedia Compiling Foundation

Sari, Iran
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Rezaei M.,Iran Encyclopedia Compiling Foundation | Mohammadi D.,University of Tehran
Iranian Journal of Information Processing Management | Year: 2012

The present study was carried out with the aim of investigating factors affecting utilization of information technology by students of agriculture. A survey approach was used in this study and a questionnaire was developed to gather the data. The study population was postgraduate students (MS and PhD) of economic and agricultural development faculty in Tehran University who were selected by applying random sampling technique. Sample size for students was 61 persons. Data was analyzed by using SPSS/WIN software. The results of the research indicated that there was a positive significant relationship between using of information technology by students and their age, average, prior experience, information technology skills, innovativeness, perceived ease of use, attitude and self-efficacy. The relationship between computer anxiety and using of IT was negative. Stepwise Regression Analysis showed that innovativeness and attitude predict 53.2 percent of variations of IT use by students.


Rezaei M.,Iran Encyclopedia Compiling Foundation | Bagheri A.,University of Mohaghegh
Emirates Journal of Food and Agriculture | Year: 2011

The present study was carried out with the aim of analyzing characteristics of adopters and non-adopters of artificial insemination in Ardabil province. A survey approach was used in this study and a questionnaire was developed to gather the data. The study population was dairy farmers who were selected by applying purposive sampling technique. Sample size for dairy farmers was 61. Data were analyzed by using SPSS/WIN software. The "t" and "Mann-Whitney U" tests revealed that adopters and non-adopters of artificial insemination were significantly different in the case of variable such as animal husbandry experience, agro-pasture landholding size, perceived ease of use and perceived usefulness of artificial insemination, profitability of artificial insemination and need to artificial insemination. Logistic regression analysis showed that need to artificial insemination and innovation proneness could correctly discriminate 90.7 percent of adopters and non-adopters of artificial insemination.


Mardani A.,Tehran University of Medical Sciences | Keshavarz H.,Tehran University of Medical Sciences | Heidari A.,Iran Encyclopedia Compiling Foundation | Heidari A.,Alborz University of Medical science | And 3 more authors.
Parasitology Research | Year: 2011

The knob-associated histidine-rich protein (KAHRP) plays a major role in the virulence of Plasmodium falciparum and is one of the targets for molecular therapy. The primary structure of KAHRP of P. falciparum consists of three domains (regions I-III), of which the C-terminal domain (region III) is the most polymorphic segment of this protein. One of the main obstacles is genetic diversity in designing and developing of malaria control strategies such as molecular therapy and vaccines. The primary objective of the present study was to investigate and analyze the extent of genetic polymorphism at the region III of KAHRP of P. falciparum in isolates from Iran. A fragment of the kahrp gene spanning the C-terminal domain was amplified by nested PCR from 50 P. falciparum isolates collected from two malaria endemic areas of Iran during 2009 to August 2010 and sequenced. In this study, three allelic types were observed at the C-terminal domain of KAHRP on the basis of the molecular weight of nested PCR products and the obtained sequencing data. The presence of multiple alleles of the kahrp gene indicates that several P. falciparum strains exist in the malaria endemic areas of Iran. Our findings will be valuable in the design and the development of the molecular therapeutic reagents for falciparum malaria. © 2011 Springer-Verlag.

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