نتایج جستجو برای: specially fractionated radiation therapy
تعداد نتایج: 876457 فیلتر نتایج به سال:
The ultrafast vibrational dynamics of the photoinduced charge-transfer reaction between perylene (Per) and perylene-3,4:9,10-bis(dicarboximide) (PDI) were investigated using femtosecond stimulated Raman spectroscopy (FSRS). Specifically probing the structural dynamics of PDI following its selective photoexcitation in a covalently linked dyad reveals vibrational modes uniquely characteristic to ...
BACKGROUND The greatest potential to reduce the burden of stroke is by primary prevention of first-ever stroke, which constitutes three quarters of all stroke. In addition to population-wide prevention strategies (the 'mass' approach), the 'high risk' approach aims to identify individuals at risk of stroke and to modify their risk factors, and risk, accordingly. Current methods of assessing and...
Cyclobutane thymine dimer, one of the major lesions in DNA formed by exposure to UV sunlight, is repaired in a photoreactivation process, which is essential to maintain life. The molecular mechanism of the central step, i.e., intradimer C-C bond splitting, still remains an open question. In a simulation study, we demonstrate how the time evolution of characteristic marker bands (C═O and C═C/C-C...
PURPOSE To estimate the radiotherapeutic dose equivalence of chemoradiotherapy in head and neck cancer. METHODS The biologic equivalent dose (BED) of radiotherapy in nine trials of standard and five trials of modified fractionated radiotherapy with or without chemotherapy was calculated using the linear-quadratic formulation. Data from Radiation Therapy Oncology Group (RTOG) study 90-03 were ...
PURPOSE Deodorant use during radiation therapy for breast cancer has been controversial as there are concerns deodorant use may exacerbate axillary skin toxicity. The present study prospectively determined the use of both aluminum-containing and non aluminum containing deodorants on axillary skin toxicity during conventionally fractionated postoperative radiation therapy for breast cancer. ME...
PURPOSE To determine the effect of vascular endothelial growth factor VEGF Trap (Regeneron Pharmaceuticals, Tarrytown, NY), a humanized soluble vascular endothelial growth factor (VEGF) receptor protein, and radiation (RT) on tumor growth in U87 glioblastoma xenografts in nude mice. METHODS AND MATERIALS U87 cell suspensions were implanted subcutaneously into hind limbs of nude mice. VEGF Tra...
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