Discrete event dynamic systems may have extremely large state spaces. For their analysis, it is usual to relax the description by removing the integrality constraints. Applying this idea, continuous P/T systems are defined by allowing fractional firings of transitions, and thus the existence of non-discrete markings [4, 5, 1]. In this paper we compare the behaviors of discrete and continuous sy...

A COMMENT ON " p < t " SAHARON SHELAH Abstract. Dealing with the cardinal invariants p and t of the continuum we prove that m ≥ p = ℵ 2 ⇒ t = ℵ 2. In other words, if MA ℵ 1 (or a weak version of this) holds, then (of course ℵ 2 ≤ p ≤ t and) p = ℵ 2 ⇒ p = t. The proof is based on a criterion for p < t. 0. Introduction We are interested in two cardinal invariants of the continuum, p and t. The ca...

We investigate possible existence of duality symmetries which exchange the Kaluza-Klein modes with the wrapping modes of a BPS saturated p-brane on a torus. Assuming the validity of the conjectured U-duality symmetries of type II and heterotic string theories and M-theory, we show that for a BPS saturated p-brane there is an SL(2,Z) symmetry that mixes the Kaluza-Klein modes on a (p+1) dimensio...

Tüm dünyada görülen COVID 19 pandemisi, ülkemizde ilk vakaya tan? konulmas? ile birlikte al?nan önlemler çerçevesinde Türk yüksek ö?retimini de etkilemeye ba?lam??t?r. Akredite bir T?p Fakültesi olan Eski?ehir Osmangazi Üniversitesi Fakültesi’nde uzaktan e?itime ba?lanan mart ay?ndan bu yana e?itim ö?retim alan?nda ya?anan de?i?iklikler ve gelecek için yap?lan planlamalar makalede sunulmaktad?r...

it is widely thought that bcl-2 family proteins regulate commitment to apoptosis primarily through their capacity to control the permeability of the mitochondrial outer membrane permeabilization (momp) triggers the release of multiple apoptogenic factors into the cytosol and, thereby apoptosis. various bcl-2 family members affect this key event of the apoptotic cascade in different ways, determ...