Impressive progress has been made in global surgery in the past 10 years, and now serious and evidence-based national strategies are being developed for scaling-up surgical services in sub-Saharan Africa. Key to achieving this goal requires developing a realistic country-based estimate of burden of surgical disease, developing an accurate estimate of existing need, deve...

In this paper we start with Meyer-Ter-Vehn isobaric fusion model and try to reconstruct all equations by introducing a dimensionless variable ?i=ri/Rm. Then we investigate the proper sets of spark confinement parameter and temperature {Hs,Ts} which satisfy ignition conditions of spark ignition in deuterium-tritium (DT) equimolar mixture in terms of isentrope parameter, ?, implosion velocity, Ui...

چکیده:        پیش از فرا رسیدن زمان انجام تعهد، ممکن است طلبکار با پیش بینی های متعارف و معقول، به این نتیجه برسد که متعهد در موعد مقرر به تعهدات خود عمل نخواهد کرد. یکی از طرق مقابله با این پدیده که به نقض احتمالی، معروف است؛ مطالبه تضمین از متعهد برای عمل به تعهدات در موعد مقرر است. از این رو، راهکار مزبور،مطالبه تضمین از متعهد؛ پیش از فرا رسیدن تعهدات قراردادی، را باید در آن دسته از نظام های...

objective: in this study, we aimed to validate the accuracy of computed tomography-based attenuation correction (ctac) using the bilinear scaling method.methods: the measured attenuation coefficient (μm) was compared to a theoretical attenuation coefficient (μt ) using four different ct scanners and an rmi 467 phantom. the effective energy of the ct beam x-rays was calculated, using the aluminu...

abstract spatial variability of soils makes difficult analysis of soil water flow phenomena especially in a large area such as a watershed. using scaling methods is a solution in variability problems. the objective of this study was to investigate the effect of the non-linear variability on performance of the scaling methods of richards’ equation for modeling infiltration in a watershed. the me...

Trichophyton rubrum is an anthropophilic fungi and has recently become the most common and widely distributed dermatophyte, isolated of man. The infection usually present as superficial scaling annular patches, but the lesions may involved the extensive area of skin.  A case of multiple cutaneous lesions due to T.rubrum with scaling annular patches and well marginated in much of the skin and in...