from many perspectives. Lessons are sought from all manner of industries and experts, from the disciplines of psychology, ergonomics, engineering and others. Yet the one source of experience and expertise that remains largely ignored is that of the patient. In their study in this issue of CMAJ of reporting of adverse events, Daniels and colleagues show that parents of children undergoing care i...

marriage among siblings has remained a controversial subject in the study of ancient iranian customs and rites, especially in regard to zoroastrianism. there have been endless debates on the existence of such a custom in ancient iran. what have largely remained unnoticed in such a study are the religious beliefs of the ancient iranians in the primitive forms of totemism. totemism is an ancient ...

A purpose of Zagros forests preservation plan is to reduce degradation factors through empowering woodman beneficiaries and underdevelopment of rural forested areas which appear as scattered agronomies inside and in forest margins, trees cutting for power supply, trees cutting for hay supply or making coal in forested regions. Therefore, natural resources experts believe that, by creation or im...

Legal psychologists’ assessments can have a major impact on the fact finder’s evaluation of evidence and, consequently, perceptions guilt. Yet, in few studies about legal and reports, great variability was found. As is case with other forensic expert domains, psychologists are prone to cognitive biases, such as being adversely affected by irrelevant contextual information, confirmation bias, al...

This manuscript is a revised version of my Master’s thesis which was originally written in 1992 and was presented to the Mathematics Department of University of Tehran. My initial goal was to give, in a language accessible to non-experts, highlights of the 1978 influential paper of Il’yashenko on singular holomorphic foliations on CP [I3], providing short, self-contained proofs. Parts of the ex...

the desire and drive for excellence in any endeavor in life requires an effort from the individual; in addition it requires a constellation of features around such individuals that help them to become successful. for surgeons, it is the operating room staff, the administrative and medical assistants and our residents and fellows. however, perhaps the most important contribution to a physician’s...