The Havel-Hakimi algorithm for constructing realizations of degree sequences for undirected graphs has been used extensively in the literature. A result by Kleitman and Wang extends the Havel-Hakimi algorithm to degree sequences for directed graphs. In this paper we go a step further and describe a modification of Kleitman and Wang’s algorithm that is a more natural extension of Havel-Hakimi’s ...

the phenomenon of doubt (hesitation) in pre-islamic (jaheli) poetry is usually accompanied with plagiarism (entehal). plagiary is not limited to any special nation; rather, it is widespread. in literary works of many nations. mohammad ibn-e-sallam aljomahi and abdolmalik ibn-e- hesham are among the most prominent critics of plagiary. also , morgolious, one of the greatest orientalists, has crit...

We aimed to investigate how can target and optimize pulmonary delivery distribution by changing physicochemical characteristics of instilled liquid.Therefore, we created a new liquids group: a. eligible for desired distribution within lung because of assorted physicochemical characteristics b. capable of being augmented with a broad range of chemicals inertly c. no interference on respiratory f...

In 1979 Hakimi, Schmeichel and Thomassen proved that in a triangulation with n vertices and no “separating triangles” – that is: no cycle of length 3 such that there are vertices inside as well as outside of the cycle – there are at least n/(log2 n) different hamiltonian cycles. We introduce a new abstract counting technique for hamiltonian cycles in general graphs. This technique is based on a...

Contents The Representation of Culture in Arabic pedagogy books to non-Arabic languages Danesh Mohammadi, Sakineh Zarenejad....................................................... 1 Critical Study of the‏‏manifestations of Mamluke's life from the novel “Alsaeroun‏‏niyam...

the effect of business regulations on economic growth (a selection of developed and developing countries) mohammad-hossein hosseinzade bahreini assistant professor of economics,ferdowsi university of mashhad mohammad ali falahi associate professor of economics,ferdowsi university of mashhad fatemeh erfany jahanshahi m.sc. in economics abstract in this research, the relationship between business...

Havel in 1955 [28], Erdős and Gallai in 1960 [21], Hakimi in 1962 [26], Ruskey, Cohen, Eades and Scott in 1994 [69], Barnes and Savage in 1997 [6], Kohnert in 2004 [49], Tripathi, Venugopalan and West in 2010 [83] proposed a method to decide, whether a sequence of nonnegative integers can be the degree sequence of a simple graph. The running time of their algorithms is Ω(n) in worst case. In th...

Ischemia-reperfusion injury (IRI) is a common and important clinical problem in many different organ systems. Once the blood flow and oxygen supply are reestablished, reperfusion enhances the injury caused by the ischemic period .This phenomenon, known as ischemia/reperfusion (IR) injury, impacts directly on liver viability, especially during transplantation and liver surgery. The purpose of th...