We discuss the production of hadrons in polarized lepton nucleon interactions and in the current jet fragmentation region; using the QCD hard scattering formalism we compute the helicity density matrix of the hadron and show how its elements, when measurable, can give information on the spin structure of the nucleon and the spin dependence of the quark fragmentation process. The cases of ρ vect...

spherical polyhedron S = (V, F ;E): For a 2-connected planar graph GS = (V,ES), embedded on a sphere (or in the plane), we record the vertices as V and the regions as faces F , and rewrite the directed edges E as ordered 4-tuples e = 〈h, i; j, k〉, where the edge from vertex h to vertex i has face j on the right and face k on the left. (The reversed edge −e = 〈i, h; k, j〉 runs from i to h, with ...

We consider the maximum integral tWo-Commodity flow problem in augmented planar graphs (i.e., with both source-sink edges added) and provide an o(IVI 2 1ogIVI) algorithm for that problem. Let G = (V, E) be a graph and w : E-t Z+ a weight function. Let T C V be an even subset of the vertices of G. A T-cut is an edge-cutset of the graph which divides T into two odd sets. Lomonosov gave a good cha...

Models of economic geography predict that transportation costs directly affect demand for goods and the supply of intermediate inputs. One of the reasons that international trade is concentrated in the coastal provinces of China is that they have lower transportation costs in transporting goods to other countries than do provinces in the interior. This paper examines the relationship between th...

Yûnus Emre, hümanizm felsefesinin tartışılmaz önderlerinden biri olarak Türk dili, tarihi ve edebiyatında önemli bir yere sahiptir. Şiirlerinin hem içerik de sanatsal değeri çok sevilmesine yol açmıştır. Bu nedenle eserlerinin pek nüshası bulunmaktadır.
 çalışmada Yunus Emre Dîvânı’nda geçen dört büyük melekten olan İsrâfil’in Kıyamet Günü’nde üfleyeceği boru Sûr ile birlikte kullanılan ya...

إن العلاقات الليبية الأوروبية علاقات موغلة في القدم، ونتيجة لقرب الشواطئ برقة لجزر البحر الأبيض المتوسط، فقد نشأت تجارية بين القبائل وجزيرة كريت وكانت قبيلة المشوش على اتصال بالشردن لمدة سبعين عاماً قبل تحالفهم مع الليبيين عهد الفرعون مرنبتاح . شعوب هم وقبائل هندو اوروبية هاجرت من شرق شمال أوروبا، وشرق بحر قزوين واواسط آسيا دفعات متتالية إلى شبه جزيرة البلقان ( اليونان)، وإلى سواحل وجزر ايجه وتض...