background: this paper contributes to further exploration of inequity in access to health research capacity development by examining the representation of different nations in international public health journals.  it also aims to examine the degree of diversity that exists in these journals. methods: this study is a descriptive survey. it was done with objective sampling on 37 isi health journ...

gastrointestinal (gi) cancers are a significant source of morbidity and mortality in iran, with stomach adenocarcinoma as the most common cancer in men and the second common cancer in women. also, some parts of northern iran have one of the highest incidences of esophageal cancer in the world. multi-disciplinary organ-based joint clinics and tumor boards are a well-recognized necessity for mode...

The aim of this study is to investigate the effects of corporate governance mechanisms in preventing the bankruptcy of companies listed in Tehran Stock Exchange. For this purpose, corporate governance mechanisms, including institutional ownership, non-executive members of the board, CEO dual responsibility and free float stock are determined as independent variables and Bankruptcy based on the ...

Nowadays the control education usually heavily relies on the available simulation packages and virtual laboratories, both of which have their irreplaceable position in the educational process. But unfortunately the closed loop experiments are way too often limited to these virtual domains and the students lack the physical feedback about the impact of control algorithms and its parameters. The ...

We are investigating a field of research that we call ubiquitous telepresence, which involves the design and implementation of low-cost robotic devices that can be programmed and operated from anywhere on the Internet. These devices, which we call ubots, can be used for academic purposes (e.g., a biologist could remote conduct a population survey), commercial purposes (e.g., a house could be sh...

During the last year, the HADES detector setup has been improved in order to achieve several goals, in particular to enhance the capability of the readout electronics [1] [2] (up to 10 events/s). This is required to enable HADES to cope with heavy ion beams at SIS18 and later at the SIS100 at FAIR. Here, one of the major changes of the DAQ upgrade was the replacement of the copper-based cables ...

concessionaire: ayatollah ahmad beheshti managing editor: mohsen izadi editor in chif: saeid beheshti executive manager: mahdi behshti     editorial board editorial board hasan ebrahimi: assistant professor, tehran university. saeid behshti: associate professor, allameh tabatabaei university. mansoor pahlavan: professor, tehran university. mohammad zabihi: associate professor qom university. ab...

On February 1, 2003, the Space Shuttle Columbia, on its way to its landing site in Florida, blew apart in the skies of East Texas. Its seven-member crew perished. The $2 billion ship was lost; some destruction occurred on the ground, and considerable cost was incurred to recover debris scattered over several states. The disaster sounded an eerie echo from the past. Seventeen years earlier the s...