Results 31 to 40 of about 31,445 (293)

Insect coloration as a defence mechanism against visually hunting predators

open access: yes, 2021
Insects utilise a wide variety of defence coloration including crypsis, aposematic coloration, and deflection patterns. The traditional view is that animals can maximise their cryptic coloration only on one background.
Lyytinen, Anne
core   +1 more source

On dispersion curve coloring for mechanical metafilters

open access: yesScientific Reports, 2022
AbstractThis paper formalizes smooth curve coloring (i.e., curve identification) in the presence of curve intersections as an optimization problem, and investigates theoretically properties of its optimal solution. Moreover, it presents a novel automatic technique for solving such a problem.
Andrea Bacigalupo   +3 more
openaire   +5 more sources

SUPERSYMMETRY IN QUANTUM MECHANICS OF COLORED PARTICLES [PDF]

open access: yesModern Physics Letters A, 2001
The role of supercharge operators is studied in the case of a Dirac particle moving in a constant chromomagnetic field. The Hamiltonian is factorized and the ground state wave function in the case of unbroken supersymmetry is determined.
Mamedov, Sh.   +2 more
openaire   +2 more sources

Evidence for coloration plasticity in the yellow‐bellied toad, Bombina variegata

open access: yesEcology and Evolution, 2021
Phenotypic adaptation in terms of background color matching to the local habitat is an important mechanism for survival in prey species. Thus, intraspecific variation in cryptic coloration is expected among localities with dissimilar habitat features (e ...
Kathleen Preißler   +2 more
doaj   +1 more source

Color Vision Mechanisms in the Monkey [PDF]

open access: yesThe Journal of General Physiology, 1960
The monkey, Macaca mulatta, was chosen as the experimental animal for the investigation of the physiological mechanisms of color vision for two reasons: there is excellent behavioral evidence that the rhesus monkey has color vision (this is not true for some of the animals which have been used in similar investigations); furthermore, its color vision ...
openaire   +2 more sources

The R2R3-MYB transcription factor GaPC controls petal coloration in cotton

open access: yesCrop Journal, 2023
Although a few cases of genetic epistasis in plants have been reported, the combined analysis of genetically phenotypic segregation and the related molecular mechanism remains rarely studied. Here, we have identified a gene (named GaPC) controlling petal
Caiping Cai   +6 more
doaj   +1 more source

Integrative analysis of transcriptome and metabolome reveals flavonoid biosynthesis regulation in Rhododendron pulchrum petals

open access: yesBMC Plant Biology, 2022
Background Color is the major ornamental feature of the Rhododendron genus, and it is related to the contents of flavonoid in petals. However, the regulatory mechanism of flavonoid biosynthesis in Rhododendron pulchrum remains unknown.
Xi Xia, Rui Gong, Chunying Zhang
doaj   +1 more source

Insight into the molecular mechanisms of leaf coloration in Cymbidium ensifolium

open access: yesFrontiers in Genetics, 2022
Cymbidiumensifolium L. is a significant ornamental plant in Orchidaceae. Aside from its attractive flowers, its leaf coloration is also an important ornamental trait.
Hua Cao   +9 more
doaj   +1 more source

Coloration of cotton fabric using watermelon extract: mechanism of dye-fiber bonding and chromophore absorption

open access: yes, 2020
Different approaches have been taken to develop a greener and sustainable cotton coloration process to reduce carbon footprint. Natural compound as a colorant is an excellent alternative to the harsh chemical-based reactive cotton coloration process ...
Sreedham Dabnath (8564553)   +4 more
core   +1 more source

Wrinkle nanostructures generate a novel form of blue structural color in great argus flight feathers

open access: yesiScience, 2023
Summary: Currently known structural colors in feathers are caused by light scattering from periodic or amorphous arrangements of keratin, melanin, and air within barbs and barbules that comprise the feather vane. Structural coloration in the largest part
Chad M. Eliason   +2 more
doaj   +1 more source

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