dna methylation plays an important role in carcinogenesis through epigenetic silencing of tumor suppressor genes. aberrant methylation usually results from changes in the activity of dna methyltransferases (dnmts). some studies show that the overexpression of the dnmts may lead to aberrant methylation of tumor suppressor genes. also the overexpression of dnmts may be related to methylation stat...

Background & Objective:  Vibrio cholerae is a natural inhabitant of the environment and causes severe diarrhea ailments (cholera) that affects thousands of people each year worldwide. The most important virulence factors of this pathogen are cholera toxin (cholera toxin CT) and Type IV...

background warts are benign tumors of the skin and mucosa and are caused by human papilloma virus (hpv). they are one of the most common skin diseases found mainly in children and adolescents. although most of the warts disappear spontaneously or respond to the usual therapeutic measures, resistant forms of the warts impose a problem in dermatology. intralesional injection of bleomycin has been...

this research project has been conducted to analyze the trend of changes in marital interactions, conflict resolution styles and marital quality based on the marriage age and marriage duration among the married men and women in qazvin city. the research method is descriptive and trend analysis. 302 married people (151 women and 151 men) from five districts of qazvin were selected using the volu...

the x-ray charge density analysis of a hydroxynaphthoquinnne derivative was obtained by multipolar hansen-coppens formalism refinement through high resolution x-ray diffraction data at 100(1) k. the molecularproperties of the title compound resulted from the combined experimental and the quantum theory of atoms inmolecules (qtaim) studies. the topological properties of the covalent bonds and of...

This paper proposes a method, that integrates image analysis and probabilistic techniques, for counting olive trees in high-resolution satellite images. Counting trees becomes significant for surveying and inventorying forests, and in certain cases relevant for assessing estimates of the production of plantations, as it is the case of the olive trees fields. The method presented in this paper e...

We describe a program to construct a model of a road junction using data from a single camera. The model specifies the ground plane orientation in camera coordinates and the positions of traffic lanes, and is obtained entirely from observations of vehicle movements, with no static image analysis. At present, the model is restricted to representing straight lane segments. We describe our methods...