800x600 congenital colour vision defects affect about 8% and 0.5% of the male and female population, respectively. pseudoisochromatic ishihara plates have shown to be successful in an early diagnosis of colour vision defects. this commonly used colour vision test was initially intended to identify those who suffered from red-green aspect of congenital colour blindness; however, it may be of use...

Theory and recent reviews state that greater genetic and phenotypic variation should be beneficial for population abundance and stability. Experimental evaluations of this prediction are rare, of short duration and conducted under controlled environmental settings. The question whether greater diversity in functionally important traits stabilizes populations under more complex ecological condit...

Rohlík B-A., Pipek P., Pánek J. (2013): The effect of natural antioxidants on the colour and lipid stability of paprika salami. Czech J. Food Sci., 31: 307–312. The typical red colour of paprika salamis is a very important quality attribute but it is also very susceptible to oxidation. Rosemary extracts and lycopene appear to be efficient antioxidants for dry fermented sausages. The complicated...

We derive an effective colour chiral action with a background gauge field. The action describes configurations of soliton-skyrmion type. Kinetic term constant f2 0 , analogue of f 2 π , is a phenomenological dimensional parameter of the model; d = 4 terms are unique up to the choice of background gauge field. The case of SU(2) colour group is discussed in detail. We study an isolated configurat...