Helical TomoTherapy(HT) planning depends on optimize parameters including field width (FW), pitch factor (PF) and modulation factor (MF). These optimize parameters are effect to quality of plans and treatment time. The aim of this study was to find the optimized parameters which compromise between plan quality and treatment times. Six nasopharyngeal cancer patients were used. For each patient d...

The droplet size distribution (DSD) formed by gas-saturated oil jets is one of the most important characteristics flow to understand and model fate uncontrolled deep-sea spills. shape DSD, generally modeled as a theoretical lognormal, Rosin-Rammler or non-fundamental function, defines mass volume range droplets. Yet, fundamental DSD has received much less attention than median (d50) during ten ...

Complex vortex flow patterns around bridge piers, especially during floods, cause scour process that can result in the failure of foundations. Abutment is a complex three-dimensional phenomenon difficult to predict with traditional formulas obtained using empirical approaches such as regressions. This paper presents test standalone Kstar model five novel hybrid algorithm bagging (BA-Kstar), dag...

Article history: Received 8 February 2010 Available online 11 February 2010 JEL classification: D50 D51 D53 D61 E40 E50 E51 E52 E58

The authors predicted mudflow and debris flow velocities with 350 field and laboratory measurements and obtained a slight trend for V=u to increase with h=d50, and the ratio of V=u is approximately 10 and rarely exceeds 30. The logarithmic relationship of turbulent resistance agrees reasonably well with the measurements. Good results also are obtained with the Manning-Strickler approach. The di...

Finite sets of market data may not suffice to determine Pareto-improving policies. © 2007 Elsevier B.V. All rights reserved. JEL Classification: D50; D60

We propose a simple mechanism that implements the Ordinal Shapley Value (PérezCastrillo and Wettstein [2005]) for economies with three or less agents. JEL Classification numbers: C72, D50, D63.

PURPOSE The purpose of this study is to compare different normal tissue complication probability (NTCP) models for predicting heart valve dysfunction (RVD) following thoracic irradiation. METHODS All patients from our institutional Hodgkin lymphoma survivors database with analyzable datasets were included (n = 90). All patients were treated with three-dimensional conformal radiotherapy with a...

Administration of high doses of fluoride (F) can alter glucose homeostasis and lead to insulin resistance (IR). This study determined the profile of protein expression in the gastrocnemius muscle of rats with streptozotocin-induced diabetes that were chronically exposed to F. Male Wistar rats (60 days old) were randomly distributed into two groups of 18 animals. In one group, diabetes was induc...