نتایج جستجو برای: tissue density effect
تعداد نتایج: 2735378 فیلتر نتایج به سال:
Introduction: Staff and patient Movement in static magnetic field MRI scanner induces current density in the human tissues, so cause biologic effects in people. The aim of this study was the Modelling of current density induced by moving individual with different velocities in static magnetic field of magnetic resonance imaging. Materials and Methods: current ...
human diploid fibroblast cells produce a spectrum of necessary growth factors and extracellular matrix (ecm) components essential for growth and proliferation of a variety of other cell types. in this study, the effect of five human embryonic fibroblast cell lines, isolated from liver, lung, skin and foreskin tissues, was investigated. a coculture system analyse was employed to cloning efficien...
Introduction: The basis of image formation in Computed Tomography (CT) lies in the x-ray linear attenuation coefficient of the scanned material. Compton scattering and photoelectric effect are the dominant interactions of the x-ray photons with the subject, in the range of diagnostic radiology. These two coefficients are important in tissue characterization by Dual-Energy CT (D...
Radiation damage depends on energy absorption, and is approximately proportional to the absorbed energy density in the tissue. In external radiation consideration with a certain energy flux, the amount of absorbed dose in each point of the tissue depends on the type of radiation, the radiation energy, the depth of the place of receipt, and the main components of the absorber environment. The ab...
Background & Aims: Regarding the effect of diabetes on vascularization processes and since the beneficial effects of aerobic exercise on the cardiovascular system have been proven, therefore, the aim of this study was to determine the effect of aerobic exercise on muscle angiogenesis and downstream factors of the PI3KR2 pathway in cardiac tissue of diabetic rats. Materials & Methods: Twenty di...
Human diploid fibroblast cells produce a spectrum of necessary growth factors and extracellular matrix (ECM) components essential for growth and proliferation of a variety of other cell types. In this study, the effect of five human embryonic fibroblast cell lines, isolated from liver, lung, skin and foreskin tissues, was investigated. A coculture system analyse was employed to cloning efficien...
A simplified overview of time-domain jitter measurements is presented in this paper. The relationship between the timedomain jitter measurements and the power spectrum of the phase jitter is described using fundamental Fourier properties and basic random variables analysis. This leads to a unifying analysis and the results are in agreement with commonly accepted understanding of jitter accumula...
Background and purpose: One of the common complications of diabetes is impairment of wound healing. The aim of the present study was to investigate the synergistic effect of hyperbaric oxygen (HBO) therapy and decellularized human amniotic membrane (dHAM) in healing of full-thickness diabetic wounds in rats. Materials and methods: In this experimental study, 60 diabetic male rats were randoml...
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