نتایج جستجو برای: γ radiation
تعداد نتایج: 309140 فیلتر نتایج به سال:
Radiotherapy exposes certain regions of solid tumours to low sublethal doses of γ-radiation that may cause secondary malignancies. Therefore, evaluating low-dose-γ-radiation-induced alterations in tumorigenic potential and understanding their mechanisms could help in improving radiotherapy outcome. Limited studies have indicated connexin (Cx) up-regulation by low doses, whereas Cxs are independ...
The thermodynamic behaviour of a relativistic perfect simple fluid obeying the equation of state p = (γ − 1)ρ, where 0 ≤ γ ≤ 2 is a constant, has been investigated. Particular cases include: vacuum(p = −ρ, γ = 0), a randomly oriented distribution of cosmic strings (p = −13ρ, γ = 2/3), blackbody radiation (p = 1 3ρ, γ = 4/3) and stiff matter (p = ρ, γ = 2). Fluids with γ < 1 become hotter when t...
Biological response to ionizing radiation depends not only on the type of radiation and dose, but also on the duration and dose rate of treatment. For a given radiation dose, the biological response may differ based on duration and dose rate. We studied the properties of two human cell lines, M059K glioma and U2OS osteosarcoma, continuously exposed to γ rays for long time periods of more than f...
ABSTRACT Background and Objectives: Exposure to ionizing radiation in modern societies is inevitable and can cause a variety of adverse health effects such as cancer and birth defects. Therefore, a reliable, repeatable and sensitive method is required for evaluation of radiation exposure. The aim of this study was to determine the amount of hist...
We consider the Gamma limit of the Abelian Chern-Simons-Higgs energy
The main aim of this thesis was to study the role of the indirect actions of γ-rays and αparticles on the complexity of primary DNA damages and the repair fidelity of major DNA repair pathways: non-homologous end joining (NHEJ), homologous recombination repair (HRR) and base excision repair (BER). The complexity of radiation-induced damages increases and the proximity between damages decreases ...
The microtubule-associated protein targeting protein for Xenopus kinesin-like protein 2 (TPX2) plays a key role in spindle assembly and is required for mitosis in human cells. In interphase, TPX2 is actively imported into the nucleus to prevent its premature activity in microtubule organization. To date, no function has been assigned to nuclear TPX2. We now report that TPX2 plays a role in the ...
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