Results 81 to 90 of about 198,070 (204)

Fractal Dimensions in Perceptual Color Space: A Comparison Study Using Jackson Pollock's Art [PDF]

open access: yes, 2005
The fractal dimensions of color-specific paint patterns in various Jackson Pollock paintings are calculated using a filtering process which models perceptual response to color differences ($\Lab$ color space).
Arnheim R.   +14 more
core   +3 more sources

Pigment patterns: fish in stripes and spots [PDF]

open access: yesCurrent Biology, 2003
The analysis of zebrafish pigment pattern development suggests a model for the genes and cell populations required to make an adult pigment pattern and provides a useful starting point for identifying the mechanisms underlying pigment pattern evolution across species.A recent approach has used interspecific hybrids.
openaire   +2 more sources

The unusual microtubule polarity in teleost retinal pigment epithelial cells. [PDF]

open access: yes, 1988
In cells of the teleost retinal pigment epithelium (RPE), melanin granules disperse into the RPE cells long apical projections in response to light onset, and aggregate toward the base of the RPE cell in response to dark onset.
BURNSIDE, Beth, Troutt, L
core   +1 more source

Profound Re-Organization of Cell Surface Proteome in Equine Retinal Pigment Epithelial Cells in Response to In Vitro Culturing [PDF]

open access: yes, 2012
The purpose of this study was to characterize the cell surface proteome of native compared to cultured equine retinal pigment epithelium (RPE) cells. The RPE plays an essential role in visual function and represents the outer blood-retinal barrier.
Aisenbrey   +54 more
core   +3 more sources

Dermoscopy of Vitiligo and Other Hypopigmented Skin Lesions in Indian Patients: A Cross-Sectional Study

open access: yesDermatology Practical & Conceptual
Introduction: Non-vitiligo hypopigmented skin lesions may be close clinical mimickers of vitiligo, resulting in a diagnostic dilemma. Dermoscopic features of vitiligo have been studied, but those of other hypopigmentation disorders are not well ...
Ananya Sharma   +4 more
doaj   +1 more source

Bar, stripe and spot development in sand-dwelling cichlids from Lake Malawi

open access: yesEvoDevo, 2019
Background Melanic patterns such as horizontal stripes, vertical bars and spots are common among teleost fishes and often serve roles in camouflage or mimicry. Extensive research in the zebrafish model has shown that the development of horizontal stripes
Laura A. Hendrick   +5 more
doaj   +1 more source

Biopigment Tracing of Mangrove Rhizophora mucronate Leaf an Bark Waste and Its Application for Batik Dyeing by Multiple Fixations [PDF]

open access: yes, 2017
The purpose of this research is to determine the pigments in the bark and leaves of mangrove (Rhizophora mucronata), to analyze rate of color fastness in batik, level of consumer interest, and most effective pricing for the resulting batik products.
Azizah TN, Ria   +4 more
core  

Pigment Epithelial Pattern Dystrophy

open access: yesArchives of Ophthalmology, 1982
The development of a retinal pigment epithelial dystrophy with a horseshoe pattern is described. In the same family, pigmentations resembling butterfly dystrophy, fundus pulverulentus, and reticular dystrophy were found. Since reticular dystrophy, macroreticular dystrophy, fundus pulverulentus, butterfly dystrophy, and pattern dystrophy lead to the ...
de Jong, P.T.V.M., Delleman, J.W.
openaire   +3 more sources

Isolation and Molecular Characterization of Pigment Producing Bacteria from Soil of Different Locality of Assam

open access: yesJournal of Pure and Applied Microbiology
Pigment is the most attractive attribute and integral part of human life. The source of the pigment used for different applications is chemically synthesised.
Moitrayee Devi   +4 more
doaj   +1 more source

Thin layer chromatographic analysis of pteridine-like pigments in the migratory locust, Locusta migratoria migratorioides (Orthoptera: Oedipodidae)

open access: yesEuropean Journal of Entomology, 2003
Acidic methanolic extracts of haemolymph, cuticle and eyes of larvae and adults of the migratory locust, Locusta migratoria migratorioides (R. et L.), were subjected to thin layer chromatography.
Václav NĚMEC   +2 more
doaj   +1 more source

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