background: due to the marked increase in the burden of cancer both in the developed and developing countries, world health organization recommends planning and implementation of comprehensive cancer control program in all countries. we evaluated evolutionary progress of the population based cancer registries (pbcr), an essential component of the cancer control program. methods: we studied freq...

In this paper, we propose a triangle-based view interpolation algorithm which can correctly resolve the visibility problem without depth-buffering. The algorithm is especially useful when depth information is not available, such as in the case of real-world photographs. By subdividing the reference image into variable-sized triangles, view interpolation can be done efficiently using existing gr...

Is it possible that the lengths of two sides of a primitive Heron triangle have a c ommon factor? The triangle with sides 9, 65, 70 and area 252 shows that this is possible. But notice that the common factor 5 is a prime of the form 4+1. Surprisingly, however, such a common factor cannot be a prime of the form 4 ; 1. Heron's name is familiar to anyone who has used the formula = p s(s ; a)(s ; b...

Background and aims: Visiting is one of the basic requirements of patients, but most doctors and nurses know visiting as a stressor. This study aimed to evaluate the effect of the presence of visitors on the quality of patients’ treatment. Methods: In this review, we studied 20 reliable documentations and sources extracted from sites of SID, PUBMED, and magazines inside and outside the country ...