objective: glioblastoma multiforme (gbm), one of the most common and aggressive malignant brain tumors, is highly resistant to radiotherapy. numerous approaches have been pursued to find new radiosensitizers. we used a picogreen and colonogenic assay to appraise the dna damage and cell death in a spheroid culture of gbm cells caused by iodine-131 (i-131) beta radiation in the presence of topote...

Background: Ionizing radiation irradiated from iodine-131 can induce DNA damage and cell death. The cellular DNA damage is the cause of mutation and cancer. The micronucleus assay in polychromatic erythrocytes was applied to assess the radio-protective effect of Turmeric extract on genotoxic potential of iodine therapy. Materials and Methods: Thirty six male albino rats were randomly divided in...

©2013 Author(s). Published by the American Society for Microbiology. This is an Open Access article distributed under the terms of the a Creative Commons Attribution – Noncommercial – Share Alike 3.0 Unported License (http://creativecommons.org/licenses/by-nc-sa/3.0/), which permits unrestricted non-commercial use and distribution, provided the original work is properly cited. Corresponding aut...

ADSlraCI: 1rns paper aoaresses roDUSIcomroi OJ mumpre mobile robots moving in desired formations. A rigorous control technique for such an agent-based robotic system may encounter problems of singularity, parameter sensitivity and inter-robot collision. Our proposed approach focuses on the enhancement of robustness as well as collision-free establishment of formations even in the case of singul...

This paper examines the problem of relative attitude observability for formations of three, four and five vehicle formations. The analysis is rooted in within the principles of maximum likelihood estimation insomuch as the metric for observability is the resulting Fisher information matrix for the small attitude errors. For formations of three and four vehicles it is shown that the relative att...

introduction: soil genesis and development in arid and semi-arid areas are strongly affected by geological formations and geomorphic surfaces. various morphological, physical, and geochemical soil properties at different geomorphic positions are usually attributed to different soil forming factors including parent material and climate. due to variations in climate, geological formations (quater...

Groups of individuals often use formations as a means of providing orderly movement while distributing members in a manner that is advantageous to the group’s activities. A particular formation may offer a defensive advantage over moving individually, for example, exposing only some of the agents to the proximity of enemies, or might increase group abilities by allowing individuals to limit per...

The Jura-Cretaceous coal seams of the Currier, Mist Mountain, &thing and Gates formations generally formed in delta or strand plain environments with little marine influence. The sulphur contents of coal from these formations is therefore generally low, nearly always less than I % and often less than 0.5 %. Coalbearing formations of the Cretaceous Nanaimo and Skeena groups were deposited in coa...

This paper considers the problem of reduction of self-localization errors in multi-agent autonomous formations when only distance measurements are available to the agents in a globally rigid formation. It is shown that there is a relationship between different selections of anchors, agents with exactly known positions, and the error induced by measurement error on localization solution. This fa...