background: early puberty is a common worldwide problem. different parameters as genetics, metabolic diseases, obesity, as well as environmental factors may affect the age of puberty. this systematic review aims to survey the related literature on the effects of environmental pollutants and especially organohalogens and phthalates on early puberty. materials and methods: a systematic review of ...

Sampling rate conversion (SRC) is one of important issues in modern sampling theory. It can be realized by up-sampling, filtering, and down-sampling operations, which need large complexity. Although some efficient algorithms have been presented to do the sampling rate conversion, they all need to compute the N-point original signal to obtain the up-sampling or the down-sampling signal in the tim...

Objective: The aim of the present review is to give an overview about the role, biosynthesis, and characteristics of Podophyllotoxin (PTOX) as a potential antitumor agent with particular emphasis on key biosynthesis processes, function of related enzymes and characterization of genes encoding the enzymes. Materials and Methods: Google scholar, PubMed and Scopus were searched for literatures wh...

in recent years, the main focus of health sector reforms in iran is the family physician and referral system plan. fundamental changes in the goals and strategies, has increased the necessity of the need to reform the organizational structure. this study tries to review and summarize all cases about the organizational structure of iran and its challenges in primary health care system.this study...

al-ghallābī is rated as among the shī‘ī authors of the third/eighth century, through whom many historical traditions have been related in shī‘ī and sunnī sources. examining the status of al-ghallābī’s traditions in the two major sects (of shī‘a and sunnī), this writing is intended to find the reason for the permeation of his traditions into the sources belonging to the sunnīs – who are very cau...

being on the right paththe 1st issue of the iranian journal of radiation research (ijrr) was published two years ago (june 2003). this journal was initiated to bring together the various disciplines of radiation oncology, radiation biology, medical physics, nuclear medicine and other related subjects to intensify the dialogue between basic and clinical researchers especially those working in ir...

Dear editor In recent years, the number of scientific research papers of Iranian scientists has substantially grown in national and international journals that indicates particular attitude of Iranian scientific community to the development of knowledge in different fields. Moreover, improvement of quality of scientific papers is necessary. For this purpose, criticism of published studies is a ...