Introduction: Multileaf collimator (MLC) is state of the art among the radiation field shaping systems for conformal radiotherapy techniques. Some advantages of this system are as follow: reduction of treatment time, higher precision in conforming the radiation field to the projection of the target volume and lowering the chance of errors made by technologists. The purpose of this research was ...

The human nervous system weighs “only” about 4.5 pounds, which accounts for approximately 3% of the entire body. It is a small and complex body system that consists of an intricate network of nervous cells (or neurons) and even more glial cells. How many nervous cells does a human have? Billions, is the simple answer. However, from a medical point of view, the more important questions are: how ...

One of the great success stories in neonatology is the gains made in survival of the smallest and most immature infants over the past 25 years. However, concerns persist that increased survival may be complicated by increased neurodevelopmental impairment (NDI) for infants born at the edge of viability. This balance between potential for survival and that of severe NDI weighs heavily on counsel...

Abstruci-Test results and key principles are given for a radar altimeter designed for meteorological balloons. The instrument, which weighs 160 g and consumes 0.7 W, will HI a gap in meteorological sensing using balloone--an area where pressure altitude was formerly the prevailing reference. The instrument is basically a delay-lock radar utilizing a superregenerative RF stage. Long-term absol...

This study examines the deliberations of professional MBA students when presented with a dilemma that weighs the difference between commitments to profit maximization against concerns for fired workers who would need to seek a new job during a recession. Using content analysis, we categorize accounting, economic and ethically-based rationales that differ from the profitmaximizing recommendation...

in this ever changing business scenario, success of the company lies in understanding the customer preferences, tastes and anticipating the changes required in existing or new products being offered. it was desired to develop a model which allows decision makers to decompose a complex problem in a hierarchical structure to show the relationship of the goals, objectives, criteria and alternative...