Introduction The global number of papers published in different areas has increased over the years (King, 2004). Moreover, the science has experimented changes in academic production scenarios, such as decreased number of solo and increased team authors over the years (Nabout et al., 2015). For many a researcher the number of authors is one measure of collaborations (Price, 1958). In fact the c...

Three-dimensional icosahedral random tilings are studied in the semi-entropic model. We introduce a global energy measure defined by the variance of the quasi-lattice points in orthogonal space. The specific heat shows a pronounced Schottky type anomaly, but it does not diverge with sample size. The flip susceptibility as defined by Dotera and Steinhardt [Phys. Rev. Lett. 72, 1670 (1994)] diver...

In this paper we study the question of what security is achievable for stand-alone two-party computation in four-rounds. Our starting point point is the Katz-Ostrovsky lower bound [KO04] which determines that the exact round complexity of achieving a secure two-party computation protocol is five. To get around this lower bound we consider two relaxations of the standard simulation-based securit...

هدفت الدراسة إلى الكشف عن عوامل عزوف طلبة الصف العاشر التفاعل الصفي أثناء التعليم بعد من وجهة نظر الطلبة. استخدم الباحث المنهج النوعي، وتكونت عينة (32) طالباً وطالبة تم اختيارها عشوائياً مدارس محافظة شمال الباطنة. وزعت على (4) مجموعات تركيز. واستخدمت المقابلة بمجموعات التركيز كأداة بحثية. وقد التحقق موثوقية وصدق الأداة بالتحكيم وتطبيقها استطلاعية. واظهرت نتائجها أن أسلوب المعلم ومهاراته الاجتماعي...