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Identification and Spectroscopic Characterization of Photoreceptor Pigments
1980From the previous chapters it should be quite clear by now that living organisms interact with the external world via specialized molecules that are able to undergo certain physico-chemical modifications in response to environmental stimuli, thus initiating the process of signalling to the organism that something outside is now different.
Giuliano Colombetti, Francesco Lenci
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A multimodal methodology for pigment identification in artworks
2023Jizhen CAI +2 more
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Spectrophotometric Identification of Feather Pigments in the Brown Leghorn Fowl
Nature, 1964BROWN Leghorn fowl show a strong sexual dimorphism in the plumage pigmentation, the female colouring being developed only in presence of the ovary whereas the male shades characterize intact or castrate bird alike. All feather tracts differ in some respects between the sexes ; the present discussion centres on the pectoral (breast) region which is ...
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On the Use of Isotope Mass Spectrometry in the Identification of Artists' Pigments
Studies in Conservation, 1970AbstractThe principles of isotope mass spectrometry are described as a means of identifying sources of artists’ materials. Four elements are considered: lead, sulfur, carbon and oxygen. For the first two of these, preliminary results show promise in dating samples of lead white and discerning between artificial ultramarine and natural ultramarine from ...
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Computer-assisted Pigment Identification in Artworks
2007False-color infrared represents a well known method for non-invasive pigment identification in artworks. This is particularly useful in the field of conservation of cultural heritage as it provides useful information about painting materials, techniques, retouches.
MAZZEO, ROCCO +3 more
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Tables for the identification of carotenoid pigments
Chromatographic Reviews, 1971openaire +2 more sources
IDENTIFICATION OF EFFECT PIGMENTS IN A TARGET COATING
2021BAUGHMAN DONALD R +4 more
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Identification of pigmented gram negative bacilli.
Health laboratory science, 1978Identification of chromogenic gram-negative bacilli on the basis of pigment production as a taxonomic criterion is unreliable. Because of this, a wide range of morphological, cultural and biochemical characteristics of bacteria in this category was examined.
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