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45  Articles
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A regular cover of a connected graph is called dihedral ifits transformation group is dihedral. In this paper, the authors clas-sify all dihedral coverings of the Heawood graph whose fibre-preservingautomorphism subgroups act edge-transitively.


This study is motivated by Robinson’s Cognition Hypothesis and aims to investigate the impact of task grading along reasoning demands dimension on syntactic complexity in English as foreign language writing.  The participants of the study were 90 int... see more

Paying tribute to science and scientists, The Holy Qur’an introduces itself as a comprehensive source of all sciences and knowledge. Investigations of the history of Islam can also reveal the emphasis of the Holy Prophet (PBUH) and his legacy (The Holy Qu... see more

In all situations of sorrow and joy, especially in times of trouble, man needs to connect with the God and connect to a source beyond the material world so that they can rely on a more important and stronger support than what he has. Man can say prayers a... see more

The Iranian Supreme Leader, Ayatollah Khamenei, expresses valuable and wise remarks in different occasions and according to the audiences’ need and based on time and place requirements. Two peace and justice terms are among the subjects that he has put em... see more


The investigation of various nutrition systems in hemp plays an influential role in improving its production. An experiment was conducted in University of Birjand, Iran, during 2013-2014, in which manure (0, 10, 20, and 30 t.ha-1 of cow manure) was consid... see more


1 of 5 pages  |  10  records  |  more records»