Results 11 to 20 of about 23,307 (292)

Pheomelanin pigment remnants mapped in fossils of an extinct mammal [PDF]

open access: yesNature Communications, 2019
AbstractRecent progress has been made in paleontology with respect to resolving pigmentation in fossil material. Morphological identification of fossilized melanosomes has been one approach, while a second methodology using chemical imaging and spectroscopy has also provided critical information particularly concerning eumelanin (black pigment) residue.
Phillip L. Manning   +14 more
core   +9 more sources

Spectral Mapping Techniques for the Stratigraphic and Compositional Characterisation of a 16th-Century Painting

open access: yesHeritage
Identifying a painting’s pigment palette is crucial for comprehending the author’s technique, as well as for evaluating the degradation of the materials.
Alice Dal Fovo   +5 more
doaj   +2 more sources

VisNIR pigment mapping and re-rendering of an experimental painting [PDF]

open access: yes, 2021
Pigment mapping allows the classification and estimation of the abundances of pigments in paintings. The information learned becomes extremely important for conservators, who are then able to decide the best strategies in the conservation of the artefacts.
Grillini, Federico   +2 more
openaire   +3 more sources

Human iPSC-Derived Retinal Pigment Epithelium: A Model System for Prioritizing and Functionally Characterizing Causal Variants at AMD Risk Loci [PDF]

open access: yesStem Cell Reports, 2019
Summary: We evaluate whether human induced pluripotent stem cell-derived retinal pigment epithelium (iPSC-RPE) cells can be used to prioritize and functionally characterize causal variants at age-related macular degeneration (AMD) risk loci. We generated
Erin N. Smith   +11 more
doaj   +2 more sources

Exploring the relationship between leaf color, canopy architecture,photosynthesis and pigment composition in guava mapping population

open access: yesJournal of Horticultural Sciences
Leaf color is a crucial parameter in determining the photosynthetic productivity of a plant. We examined 150 intervarietal guava hybrids from the cross Arka Poorna x Purple Local, that were segregating for leaf color (green and greyed purple ...
Malarvizhi Mathiazhagan   +5 more
doaj   +3 more sources

An allelic series at the EDNRB2 locus controls diverse piebalding patterns in the domestic pigeon.

open access: yesPLoS Genetics, 2023
Variation in pigment patterns within and among vertebrate species reflects underlying changes in cell migration and function that can impact health, reproductive success, and survival.
Emily T Maclary   +6 more
doaj   +1 more source

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

open access: yesJournal of Imaging, 2022
In this paper, we propose a pipeline that reproduces human skin mockups using a UV printer by obtaining the spatial concentration map of pigments from an RGB image of human skin.
Kazuki Nagasawa   +6 more
doaj   +1 more source

Genetic Mapping and Biochemical Basis of Yellow Feather Pigmentation in Budgerigars [PDF]

open access: yesCell, 2017
Parrot feathers contain red, orange, and yellow polyene pigments called psittacofulvins. Budgerigars are parrots that have been extensively bred for plumage traits during the last century, but the underlying genes are unknown. Here we use genome-wide association mapping and gene-expression analysis to map the Mendelian blue locus, which abolishes ...
Thomas F, Cooke   +10 more
openaire   +2 more sources

New Insight into Hellenistic and Roman Cypriot Wall Paintings: An Exploration of Artists’ Materials, Production Technology, and Technical Style

open access: yesArts, 2019
A recent scientific investigation on Hellenistic and Roman wall paintings of funerary and domestic contexts from Nea (‘New’) Paphos, located in the southwest region of Cyprus, has revealed new information on the paintings’ constituent ...
Roxanne Radpour   +2 more
doaj   +1 more source

Remote multispectral imaging with PRISMS and XRF analysis of Tang Tomb paintings [PDF]

open access: yes, 2011
PRISMS (Portable Remote Imaging System for Multispectral Scanning) is a multispectral/hyperspectral imaging system designed for flexible in situ imaging of wall paintings at high resolution (tens of microns) over a large range of distances (less than a ...
Rebecca Lange   +5 more
core   +1 more source

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