BACKGROUND Breast density is a significant breast cancer risk factor measured from mammograms. The most appropriate method for measuring breast density for risk applications is still under investigation. Calibration standardizes mammograms to account for acquisition technique differences prior to making breast density measurements. We evaluated whether a calibration methodology developed for an...

Leaf-off individual trees in a deciduous forest in the eastern USA are detected and analysed in small footprint, high sampling density lidar data. The data were acquired February 1, 2001, using a SAAB TopEye laser profiling system, with a sampling density of approximately 12 returns per square meter. The sparse and complex configuration of the branches of the leaf-off forest provides sufficient...

Introduction: Dynamic contrast-enhanced MRI has been used in conjunction with tracer kinetics modelling in a wide range of tissues for treatment monitoring, oncology drug development and investigation of disease processes. Accurate measurement of model parameters relies on high quality data, and as model complexity increases to allow measurement of more physiological parameters, the data qualit...

In this thesis we present an approach to combine a probabilistic Shape-fromShading algorithm with statistical models of facial shapes. Thesis presents how Fisher-Bingham (FB8) distributions are sampled using Gibbs sampling to give normal distributions on the tangent plane. These normal distributions are in turn combined with normal distributions arising from statistical models of facial shapes....

Little attention has been devoted to lichens of Kerman province (Iran). This study was conducted to identify lichens in the Kuh-Asiab protected area of Kubanan located in the northernmost part of Kerman province. In this study, eight sites were chosen in the area. Sampling was carried out according to Random method. Height data were obtained from each site along with the abundance of lichen spe...

Ambient sulphur dioxide (SO2) measurements have been performed at a high altitude site in the semi arid region of western India, Gurushikhar, Mt. Abu (24.6 ̊N, 72.7 ̊E, 1680 m ASL), during different sampling periods span over Sep-Dec 2009 and Feb-Mar 2010. A global three dimensional chemical transport Model, GEOS-Chem, (v8-03-01) is employed to generate the SO2 profile for the entire region for t...

Sir,—MacDonald and Mackenzie (1976) reported an alinear relationship between peak height and halothane concentration when measuring halothane (0.2—4.0%) with a gas chromatograph equipped with a flame ionization detector. Alinearity persisted when the sample loop size was reduced from 2 ml to 0.1 ml, and a linear response was obtained only when the flame ionization detector was replaced with a k...