a controversy among the muslim philosophers about the domain of the extensions was that is the subject of the verity-propositions contained the impossible extensions or only all of the actual and possible ones. from ibn-sina to al-khunaji, there are explicit texts to the former view; but later logicians, starting with athir al-din al-abhari, were inclined to the latter. in this paper, we attamp...

Let IBn be the set of all irreducible matrices in Bn and let SIBn be the set of all symmetric matrices in IBn. Finding an upper bound for the set of indices of matrices in IBn and SIBn and determining gaps in the set of indices of matrices in IBn and SIBn has been studied by many researchers. In this paper, we establish a best upper bound for the set of weak exponents of indecomposability of ma...

Ibn Cena (1020 A.D.) described the anatomy of the human heart, ascending aorta and the inferior vein, and postulated anastomoses of the arteries with the veins in the extremeties to keep. the blood in circulation and suggested the presence Qf interatrial communication during the earlier stages of life. Abu Sahl Masihi (1027 A.D., elucidated the vena caval drainage into the right ventricle and t...

ali-ibn-e-abbas-al-majusi, well known as haly abbas in the west, a physician, surgeon and psychologist of buyid dynasty era, lived in the 10th century (a.d). he, along with tabari, razi, avicienna, and jorjani, established the foundation of islamic medicine. he authored “kamilu sina’at” or “al-kitab al-maliki” (the royal book), a book on medicine which was used in european universities until th...

rain is one of the manifestations of the divine blessing for servants which plays a very important role in the life of this human being. man has paid special attention to rain since he stepped on earth. many poets have described rain, used it in their similes and composed poetry out of it. they have used rain as a symbol together with other symbols such as woman, praise, battleground and so man...

The aim of this study was to describe epidemiological, cytologic and immunophenotypic aspects of acute leukemias (AL) in children diagnosed at IBN SINA University Hospital Center and to determine the concordance between cytology and immunophenotyping results. This is a cross-sectional study conducted in the hematology laboratory of IBN SINA University Hospital Center between June 2012 and May 2...