background: during the one-year period from may 2008 to may 2009, a nationwide shortage developed which rabies vaccine was not being produced by the manufacturers. in order to manage existing supply, a protocol was established wherein an authorization was required from the regional poison center before vaccine could be administered to a patient. methods: the georgia poison center internal datab...

we introduce center-like subsets z*(r,f), z**(r,f) and z1(r,f), where r is a ring and f is a map from r to r. for f a derivation or a non-identity epimorphism and r a suitably-chosen prime or semiprime ring, we prove that these sets coincide with the center of r.

in this paper, a novel approach for ranking fuzzy numbers based on the angle measure is introduced. several left and right spreads at each chosen levels of fuzzy numbers is used to determine center of mass points(cmps) and then, the angels between the cmps and the horizontal axis is calculated. the total angle is determined by averaging the computed angles and finally, the novel method is compa...

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this study aimed to evaluate the radiation safety condition and the level of radiation-awareness amongst staff and patients in 18 hospitals of shahid beheshti university of medical sciences, tehran, iran. this descriptive, cross–sectional study was administered to patients and personnel, also making a review on the radiation-safety status in the hospitals. in evaluating the level of awareness, ...

objectives: studying the situation of providing services for people with disability are very important and in current situation which is dominate on system providing rehabilitation services in iran, private rehabilitation centers can be the best and the most important focus for this study. methods: this research performed by qualitative method and with phenomenology type, and purposeful samplin...