Mathematics and painting are interrelated in many ways. At a technical level mathematics can be used to enhance our appreciation of paintings. This was recently demonstrated beautifully by Taylor, Micolich, and Jones in their analysis of Jackson Pollock’s drip paintings, which led them to the conclusion that Pollock’s paintings are in a way Ž gurative pictures. Relations also exist at a more ba...

This paper proposes a novel algorithmic framework for an advanced virtual brush to be used in interactive digital painting. The framework comprises the following components: a geometry model of the brush using a hierarchical representation that leads to substantial savings in every step of the painting process; fast online brush motion simulation assisted by offline calibration that guarantees ...

Dose painting radiotherapy is considered a promising radiotherapy technology that enables more targeted dose delivery to tumor rich regions while saving critical normal tissues. Obviously, dose painting planning would be more complicated and hard to be evaluated with current plan quality index systems that were developed under the paradigm of uniform dose prescription. In this study, we introdu...

Ever since the establishment by Virchow of a n etiological theory of cancer due to irritation, cancer investigators have attempted to find a means of producing cancer experimentally by some form of irritation. The first successful results were reported by Yamagiwa and Itchikawa in 1915, using rabbits ,the ears of which were painted with coal-tar every second or third day. In 1918 Tsutsui publis...

The polymer solar cells were fabricated by a novel solution coating process, the roller painting. The roller painted film composed of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) has smoother surface than the spin coated film. Since the roller painting is accompanied with shear and normal stresses and is also a s low drying process, the process induces eff...

Image In-painting, the technique that aims to revert deterioration (scratches, artifacts in photographs and videos) in images in an undetectable form, is as ancient as artistic creation itself. Digital Image In painting, a relatively young research area is an art of filling in the missing or corrupted regions in an image using information from the neighbouring pixels in a visually plausible man...

Online collections provided by museums are increasingly opened for contributions from users outside the museum. These initiatives are mostly targeted at obtaining tags describing aspects of artworks that are common knowledge. This does not require the contributors to have specific skills or knowledge. Museums, however, are also interested in obtaining very specific information about the subject...

The worldwide obesity epidemic is usually blamed on overeating and underexercising. But limited evidence has suggested a few environmental contaminants may also be playing a role. Now some of the first detailed evidence implicating organotins, a class of persistent compounds containing at least one tin–carbon bond, has been published in the September 2006 Molecular Endocrinology. A team of U.S....

In this paper we review briefly a recently developed chaos indicator: the OFLITT, or more friendly the OFLI2. Using this new indicator we present several sensitivity plots for several classical problems: the Hénon-Heiles Hamiltonian system and an Extensible Pendulum.

Brush Painting Algorithms Modern image editing applications offer the user a wide range of brushes. With digital brushes a whole new dimension of different brushes has become possible since a digital brush is not limited by the physics of ordinary brushes and paints. At the same time as a digital brush can provide the user with opportunities which are not even to think of using traditional pain...