Stroke or cerebrovascular accident (CVA) is caused by a disturbance of the blood supply to the brain and an accruing loss of brain function. The first recorded observations were in 2455 BC and it has been studied intensely by ancient physicians throughout history. In the early medieval period, Ibn Sina (980-1025 AD) called stroke sekteh and described it extensively. Some of Ibn Sina's definitio...

This paper introduces a new way of representing bankruptcy rules. These representations are used to show that the minimal overlap rule is a composition of the Ibn Ezra rule and the constrained equal losses rule, a result originally obtained by [1]. The residual minimal overlap rule is analysed as an alternative extension of the Ibn Ezra rule, by using a composition with the constrained equal aw...

impact on Ibn Tufayl's forerunners, especially Avicenna, whom Ibn Tufayl quotes expressly. Salim Kemal's 'Justifications of poetic validity' gives a very condensed summary of his monograph The poetics ofAlfarabi and Avicenna (Leiden, 1991). But I doubt whether Ibn Tufayl's novel kind of thought experiment can be grasped in terms of Avicenna's poetology. The medieval Latin translators did not co...