The purpose was to study correlations amongst IMRT DVH evaluation points and how their relaxation impacts the overall plan. 100 head-and-neck cancer cases, using the Eclipse treatment planning system with the same protocol, are statisti-cally analyzed for PTV, brainstem, and spinal cord. To measure variations amongst the plans, we use (i) interquartile range (IQR) of volume as a function of dos...

A psychophysical experiment has been conducted to test the threshold of color difference in displayed images under different viewing conditions. Four ISO SCID 400 images N2, N3, N5 and N7 were used as test images, whose colors were altered in lightness, chroma and hue attributes systematically to form the test image pairs with the original ones. The average color difference in all image pairs r...

Streambed aggradation and degradation are ways in which a stream will respond to changes the incoming flow sediment loads. Several environmental societal problems attributed these channel bed adjustments. Prior studies have extensively used power discern dominant processes establish threshold limits required trigger modifications. However, were constrained by limited datasets scope of applicati...

Using an instanton solution for the isotropic limit d50, we obtain the imaginary part of the ground-state energy for small negative g as a series expansion in the anisotropy parameter d . From this, the large-order behavior of the g expansions accompanying each power of d are obtained by means of a dispersion relation in g . The g expansions are summed by a Borel transformation, yielding an app...

The evaluation of collection efficiencies aerosol samplers becomes challenging with high pressure drops. approaches applied at various conditions deserve further development, especially when a drop is induced by the sampler. In this work, an elution-based method using NaCl was proposed to estimate size-resolved efficiency which not affected drop. More specifically, Condensation Particle Counter...

Representative bed material samples were taken from the two gauging sites on rivers omi for sieve analysis to obtain the grain size distribution of its bed materials. The analyses of the grain size distribution showed that the bed load accounted for 9% of the total estimated suspended sediment load of 1,703, 548.113 kg/annum in river omi. River omi bed material had a geometric mean particle siz...

Corresponding colors data for complex images were obtained using an adjustment method. Experiments were carried out for printed images viewed at a high luminance in a light surround under CIE illuminant D50 simulators that were matched by CRT-displayed images using both CIE illuminant D65 and D50 white points at a lower luminance level in a dark surround. The results show expected chromatic ada...

The spine cases included a fifth lumbar spine (case 1), fifth thoracic spine (case 2), and 10th thoracic spine metastases (case 3). Targets and organs at risk (OAR) were contoured by one experienced radiation oncologist according to International Spine Radiosurgery Consortium Consensus Guidelines and a 2 mm planning target volume (PTV) applied. The DICOM files were sent to each institute for pl...

Type 2 diabetes (T2D) is rapidly rising in prevalence. Characterized by either inadequate insulin production or the inability to utilize insulin produced, T2D results in elevated blood glucose levels. The "gold-standard" in assessing insulin sensitivity is a hyperinsulinemic-euglycemic clamp or insulin clamp. In this procedure, insulin is infused at a constant rate resulting in a drop in blood ...