نتایج جستجو برای: second and third volumes
تعداد نتایج: 16886835 فیلتر نتایج به سال:
The Padmakar-Ivan (PI) index is a Wiener-Szeged-like topological index which reflects certain structural features of organic molecules. The PI index of a graph G is the sum of all edges uv of G of the number of edges which are not equidistant from the vertices u and v. In this paper we obtain the second and third extremals of catacondensed hexagonal systems with respect to the PI index.
background and aims. panoramic radiographs are used for surgical planning of unerupted third molars. the major problems associated with panoramic radiography include unequal magnification and geometric distortion of the image. the purpose of this study was the clinical evaluation of the effect of radiographic distortion on the position and classification of unerpted mandibular third molars. mat...
For developmental study of thymus in different stages offetal period, from thymus glands of75 healthy fetuses. histological sections were prepared and stained by H&E, PAS, Verhoeff, Toluidine blue and Van Geisson's methods. This study revealed that, the infiltration and accumulation of lymphocytes in thymus takes place at second month. Medullae were expanded and cortices were seen as accumulati...
colonialism is an important factor in cultural production and many of cultural constructs all over the world. english and english language teaching are at the center of the contemporary world. postcolonial literature, the genre achebe exercised, is a kind of historical text which has become central to different debates and criticisms. in this thesis, different elements related to the colonial...
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