An upward drawing of a rooted tree T is a planar straight-line drawing of T where the vertices of T are placed on a set of horizontal lines, called layers, such that for each vertex u of T , no child of u is placed on a layer vertically above the layer on which u has been placed. In this paper we give a linear-time algorithm to obtain an upward drawing of a given rooted tree T on the minimum nu...

â  â  â  â  abul-atahiya: his life and poems â  â mohammad ali otroshi shahreza * â  hossein kiani ** â  â abstract â abul-atahiya was born and grown up in kufa-iraq, a city chosen as the central city by shias and the abbasid dynasty publicized their government there. he lived in a period which slander was common so he kept company with adulterous people and acted dishonorably. he started compo...

Cells of the monocyte/macrophage lineage, dendritic cells, and a variety of other cell types that express class II histocompatibility (Ia) molecules on their surfaces are capable of presenting foreign protein antigens to and stimulating Iarestricted inducer (helper) T lymphocytes (1-3). After the demonstration that B cells also bear Ia antigens (4) and that at least some interactions between an...

The "Kitab al-abniya an haqa iq al-adwiya" (Book of the Foundations of Pharmacognosy) also Known as "Rozat ol-ons wa manfa 'ar on-nafs" is the most ancient medical book in Persian (Farsi), which was written by Abu Mansur Movaffaq ibn Ali Heravi during the period of Mansur ibn Noh Samani between the years 350 to 366 lunar hegira. The book deals with 584 mineral, herbal and animal-based drugs. Th...

After the inscription of Historic City Yazd on UNESCO’s World Heritage List in 2017, number tourists visiting increased. The area is formed several neighborhoods. This study aims to propose a conservation plan for oldest, Shah Abul-Ghasem Neighborhood, using urban design qualities suggested by Golkar. based field survey neighborhood was carried out such way that items related were photographed ...

In 1946 Hale described a method for demonstrating acid mucopolysaccharides in sections based on the affinity of these compounds for colloidal iron oxide in acid solution. The combined iron was demonstrated by conversion to prussian blue. It has been found that bacterial capsules and slime are very well stained by Hale's method. This is possibly due to their content of acid mucopolysaccharides, ...