in managing organizations as complex social systems that their core includes of human interactions or their complicated patterns of behavior, the precise definition of problem is very important; because interactions between organizations cause to emerging complex relationship networks which in it formal patterns are always affected by informal relationship networks. this paper analyses the form...

Increased competition, changes, and uncertainty have forced organizations to embrace innovation as an important function. Paying attention to the innovation is necessary to reply to Rapid technological changes rate. So many researches have been done about innovation, but there are a few studies about innovation in refineries. Due to this fact, the present study aimed to identify human and manag...

The diversity and distribution of the rotifers family Notommatidae was studied in the northwest, the south and the southwest of Iran. In total, 29 species were identified, of which, 25 are new records for the country. New records include the following species: Cephalodella forficata, C. cf. mus, C. vittata, C. ventripes, C. lepida, C. inquilina, C. gibboides, C. tincaformis , C. obvia, C. stere...

background: today, cancer is one of the major health problems worldwide, and the importance of this disease in our country is growing. this cancer is the third cause of death and accounts for the second largest group of non-transmissible chronic diseases. colorectal cancer is the most common gastrointestinal cancer and includes 10%  of deaths from cancer around the world. different genetic and ...

It has long been recognized that education and training are essential factors in promoting environmental management in business organizations. So far, however, there has been little documentation about environmental management practice and related educational and training requirements in even leading companies. As an attempt to characterize the current status of introducing environmental manage...