background: in northeastern iran there is an area of high incidence of esophageal cancer which is populated by residents of turkmen ancestry. several environmental risk factors for esophageal cancer have been proposed, but the roles of familial and genetic factors have not been studied extensively in the turkmen population. materials and methods: we evaluated the importance of familial risk fac...

Cicerone and Di Stefano defined studied the class of k-distance-hereditary graphs, i.e., graphs where distance in each connected induced subgraph is at most k times whole graph. The represent a generalization well known distance-hereditary which actually correspond to 1-distance-hereditary graphs. In this paper we make step forward study these new by providing characterizations for all such tha...

the aim of this paper is to study orders over a valuation ring v with arbitrary rank in acentral simple f-algebra q. the relation between all of the orders is explained with a diagram. it is thenshown that inside bezout order, extremal v-orders are precisely semi-hereditary. in the last section, theeffect of henselization on maximal and semi-hereditary orders is examined.

Background: Neonates affected by hereditary spherocytosis may suffer from significant jaundice. This study was conducted on neonates with jaundice hospitalized at the Children’s Hospital in Bandar Abbas, South Iran, to determine the frequency of hereditary spherocytosis among them. Patients and Methods: In this cross-sectional study, 814 neonates with jaundice hospitalized at the Children’s ...

conclusion the involved liver with hht typically shows vascular shunting and biliary diseases. also, arteriovenous shunts may be vulnerable to biliary diseases. results (i) three types of shunting were found in the livers, including arteriovenous (hepatic artery to hepatic vein) in 6 cases, arterioportal (hepatic artery to portal vein) in 2 cases, and portal venous (portal vein to hepatic vein)...

Distance-hereditary graphs are in important graph class theory, as they well-placed the hierarchy and permit many algorithmic results. We investigate structural advantages of a directed version this well-researched class. Since previously defined distance-hereditary digraphs do not recursive structure, we define twin-distance-hereditary graphs, which can be constructed by several twin pendant v...

MOTIVATION A very promising approach in drug discovery involves the integration of available biomedical data through mathematical modelling and data mining. We have developed a method called optimization program for drug discovery (OPDD) that allows new enzyme targets to be identified in enzymopathies through the integration of metabolic models and biomedical data in a mathematical optimization...

hearing loss (hl) is the most common communication disorder affecting about 1/1000 births worldwide caused by environmental or genetic factors. about 30-50% is attributed to genetic factors and till now more than 85 genes have been implicated in non-syndromic hl. in iran, hl is second to intellectual disability as the most common disability, affecting 1 of every 166 persons. about 15 years ago ...