starting his intellectual life as a precociously young medical practitioner, quṭb al-dīn shīrāzī (634-710 a.h.) was compelled to wander far and wide in his quest for knowledge. recognized and admired as a savant, and enjoying the patronage of key political figures of his era, shīrāzī's activities as a scholar continued even during his appointment as judge in rūm, and while serving as ambas...

The number of papers addressing overweight and obesity submitted to this journal is still substantial, as previously reported. As the first issue for the new year we have chosen Overweight and obesity as the hot topic. You can find papers on antioxidant capacity in obese women, growth reference curves for Portuguese adolescents and validity of self-reported height and weight in Austrian adults....

T he simplest objects with noncommutativemultiplicationmay be 2×2matrices with real entries. Such matrices of determinant one form a closed set under multiplication (since det(AB) = detA · detB), the identity matrix is among them, and any such matrix has an inverse (since detA ≠ 0). In other words those matrices form a group, the SL2(R) group [8]—one of the two most important Lie groups in anal...

Properties of systems with majority voting rules have been exhaustingly studied. In this work we focus on the randomized case where the system is initialized by randomized initial set of seeds. Our main aim is to give an asymptotic estimate for sampling probability, such that the initial set of seeds is (is not) a dynamic monopoly almost surely. After presenting some trivial examples, we presen...

As developing axons navigate, they exhibit various behaviours: extending and branching, pausing, changing direction, retracting. Now, the Slit protein has been discovered to have striking positive and negative effects on axon growth and guidance.

The simplest objects with non-commutative multiplication are 2×2 matrices with real entries. Such matrices of determinant one form a closed set under multiplication (since det(AB) = detA · detB), the identity matrix is among them and any such matrix has an inverse (since detA 6= 0). In other words those matrices form a group, the SL2(R) group [7]—one of the two most important Lie groups in anal...