Objectives: The objective of this study was to evaluate by a visual method of comparison the color stability of nonpigmented and pigmented facial silicones after accelerated aging. Materials and Methods: Two kinds of ...

Two questions are mainly discussed in this article: (a) how the shape of color order systems is related to different types of chromatic mixtures, and (b) how the opacity or transparency (an aspect of cesia) of the coloring ...

Color is a perceptual phenomenon of easy change. According to the science of physics, each color has a different wavelength and chemically it is an organic or inorganic substance with its own formula. The color, ...

In this paper the electrolytic process application as a water purification treatment stage from the Ipe neighborhood lake (Ilha Solteira - Sao Paulo, Brazil-) was evaluated. The treatment efficiency for apparent and true ...

Objectives: The objective of this study was to evaluate by a visual method of comparison the color stability of nonpigmented and pigmented facial silicones after accelerated aging. Materials and Methods: Two kinds of ...

An injective coloring of a graph is a vertex labeling such that two vertices sharing a common neighbor get different labels. In this work we introduce and study what we call additive colorings. An injective coloring of a ...

Natural red colorants are highly appreciated by the food industry, and betalains are one such category. There are few sources in nature of betalains, which are commonly obtained from red beet as a colorant additive and ...