this article examines al-ṭūsī’s and maghribī’s recensions of theodosius’ sphaerica by comparing their features and differences. al-ṭūsī adheresto the original text of sphaerica, however, by adding some postulates and three lemmas, he enriches the mathematical structure of the treatise. al-ṭūsī’s composition style reveals that he intended to prepare a pedagogical textbook, his statements are con...

OBJECTIVE In an effort to accommodate MOCA to better fit for the Chinese context, this study was designed to employ the MOCA criteria to screen mild cognitive impairment (MCI) and analyze associated risk factors in military retirees. METHODS Three hundred and four retired military cadres were recruited using a random cluster sampling technique with information collected including personal, pr...

the elements of euclid, sometimes knows as the “the book of euclid”, and in the mathematical texts of the islamic period often referred to as “the book of the elements”, is one of the main sources of islamic mathematics. this paper addresses the history of the translation of this book and its recension by naṣīr al-dīn ṭūsī. then, through a comparison of the first chapter of the fourth part of q...