aim : assessment of short term changes in portal blood flow and long term changes in liver functions in cirrhotic patients who chose to fast during the month of ramadan in summer. background : during ramadan, healthy muslims obligated to fast from predawn to sunset. patients and methods : forty cirrhotic patients intended to fast during the month of ramadan in the year 2014, were examined by co...

We report a case of a 40 year old man with portal hypertension caused by a splenic arteriovenous fistula that was diagnosed at laparotomy. He presented with bleeding esophageal varices and was initially treated by sclerotherapy. At laparotomy, portal pressure was 40 cmH20 but fell to 20 cm H20 after the fistula was treated with splenectomy. All symptoms disappeared shortly after operation ...

Background: University has a great responsibility for the education of students. In order to achieve this target, it must provide academic counseling for students. The aim of this study is to investigate the attitudes of students after using a portal for virtual counseling. Methods: A questionnaire which is based on the goals that mentioned in mentorship law was designed and validated by educa...

Today, electronic portal imaging devices (EPIDs) are widely used as a replacement to portal films for patient position verification, but the image quality is not always optimal. The general aim of this study was to optimize the acquisition parameters of an amorphous silicon EPID commercially available for clinical use in radiation therapy with the view to avoid saturation of the system. Special...

Analysis of calculations and planning in steel structures there are 2 methods that usually used, the method load factor resistance design (DFBK) allowable strength (DKI). The DFBK is a takes into account working multiplied by several safety factors so as to produce factored which then used calculate or plan building, while DKI does not depend on combined calculation its planning, but uses stres...

in this paper we introduce and study besselian $g$-frames. we show that the kernel of associated synthesis operator for a besselian $g$-frame is finite dimensional. we also introduce $alpha$-dual of a $g$-frame and we get some results when we use the hilbert-schmidt norm for the members of a $g$-frame in a finite dimensional hilbert space.