background and objective: co-authorship on writing articles is one of the indicators of reliability in scientific articles. due to the lack of information regarding to the rate of participation of the authors of articles in the ” iranian journal of pathology” this research with the aim of the survey of collaborative coefficients of article authors in this journal  from 2006 to 2012 was performe...

three nearly simultaneous events around the end of the 19th century, i.e., the discovery of x‐rays by roentgen in 1895, natural radioactivity by antoine‐henri becquerel in 1896 and isolation of radium by the curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. at the close of the 20th century, fundamental discoveries in biology at mo...

The Information and Communication Technologies (ICTs) are being increasingly used by the governments to deliver its services to both rural and urban people. Obviously, access and application of ICT will provide services to improve the income and welfare of rural poor. This will help reducing rural poverty and improve quality of life. In Iran, importance of using rural ICT benefits and advantage...

   The main purpose of this study was to explore factors influencing immigration from rural to urban areas in Varkaneh , a famous village and tourist destination located in western part of Iran- Hamedan. A questionnaire was designed and validated by a panel of experts from Extension Education Dept. of Bu-Ali Sina University and Hamadan Jihad of Agriculture. Its reliability was secured by Cronba...