The objective of this paper is to present our experience in the commissioning and quality assurance (QA) for intensity modulated radiotherapy (IMRT) using dynamic multileaf collimator (dMLC), sliding window technique. Using Varian equipment solution, the connectivity and operation between all IMRT chain components was checked. Then the following test were done: stability of leaf positioning and...

Lipid-binding sites and properties were compared in the hetero-oligomeric cytochrome (cyt) b(6)f and the yeast bc(1) complexes that function, respectively, in photosynthetic and respiratory electron transport. Seven lipid-binding sites in the monomeric unit of the dimeric cyanobacterial b(6)f complex overlap four sites in the Chlamydomonas reinhardtii algal b(6)f complex and four in the yeast b...

This paper reviews key properties and major unsolved problems about Strong Thermal Emission Velocity Enhancement (STEVE) the picket fence. We first introduce basic characteristics of STEVE historical observations STEVE-like emissions, particularly case on 11 September 1891. Then, we discuss open questions STEVE: 1) Why does preferentially occur in equinoxes? 2) How do solar wind storm/substorm ...

PURPOSE To determine the feasibility of using radiochromic and radiographic film with Pipspro software for quality assurance of linear accelerators with no on-board imaging. METHODS The linear accelerator being used is a Varian Clinac 21EX. All IGRT is performed using the BrainLab ExacTrac system. Because of the lack of on board imaging, certain monthly and annual TG-142 quality assurance tes...

BACKGROUND Upper tibia defects ,type3b Gustilo, due to huge size and volume are very difficult to reconstruct; usually several operations are needed for bone and soft tissue defects and the definite one stage reconstruction is yet to be found. OBJECTIVES In this article we reintroduce the rib- latissimus flap as an acceptable method to reconstruct tibia defects in selected cases. MATERIALS ...