purpose: to evaluate the effectiveness of pars plana vitrectomy and posterior hyaloid stripping in decreasing macular thickness and improving vision in diabetic macular edema.          methods: this prospective interventional case series includes 30 eyes of 25 diabetic patients with diabetic macular edema with macular thickness exceeding 170 microns and thickened posterior hyaloid. bcva and mac...

Peroxynitrite, a cytotoxic oxidant formed from nitric oxide (NO) and superoxide, induces DNA strand breakage, which activates the nuclear enzyme poly(ADPribose) synthase (PARS; EC 2.4.2.30). The cellular function of PARS was determined in fibroblast lines from PARS knockout animals (PARS2/2) and corresponding wild-type animals (PARS1/1), with the aid of the lipophilic PARS inhibitor 5-iodo-6-am...

OBJECTIVE To determine the most effective and biodegradable dispersant of spilled oil in water surrounding two Persian Gulf provinces. METHODS This study compared the effects of three dispersants, Pars 1, Pars 2, and Gamlen OD4000 on removal of oil in two Persian Gulf provinces' water. Overall, 16 stations were selected. Using the Well method, the growth rate of isolated bacteria and fungi wa...

Arguably, the natural gas transmission pipeline infrastructure in Iran represents one of the largest and most complex mechanical systems in the world. The optimization of large gas trunk lines known as IGAT results in reduced fuel consumption or higher capability and improves pipeline operation. In the current study, a single-objective optimization was conducted for Khormoj compressor station o...

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...

1Department of Spinal Surgery, Pars Advanced and Minimally Invasive Manners Research Center (PAMIM), Pars Hospital, Tehran, Iran 2Adventist Hinsdale Hospital,120 N Oak St, Hinsdale, IL 60521, USA *Corresponding author Abolfazl Rahimizadeh, MD Department of Spinal Surgery Pars Advanced and Minimally Invasive Manners Research Center (PAMIM) Pars Hospital, Tehran, Iran Tel. + 98 912 322 61 49 E-ma...

iran’s vast common natural gas resources and the necessity to extract and export it as liquefied natural gas (lng) to distances more than 3000km opens a lucrative field for researchers to optimize lng cycles. in this article heat integration in cryogenic cycles by determining interacycle partition temperature and optimizing refrigeration features like subcooler, presaturator, aftercooler, reboi...