Results 91 to 100 of about 9,956 (243)

Iris colour in passerine birds: why be bright-eyed? [PDF]

open access: yes, 2004
An initial survey of iris coloration in passerine birds (Aves: Passeriformes) showed that a brightly pigmented iris is much more common in southern African and Australian birds than in those from Europe, temperate North America, and Venezuela.
Craig, A J F K, Hulley, P E
core   +2 more sources

Thyroid hormone regulates distinct paths to maturation in pigment cell lineages [PDF]

open access: yes, 2019
Thyroid hormone (TH) regulates diverse developmental events and can drive disparate cellular outcomes. In zebrafish, TH has opposite effects on neural crest derived pigment cells of the adult stripe pattern, limiting melanophore population expansion, yet
Aman, Andrew J   +10 more
core   +1 more source

Infrared absorption spectra of a series of 2, 6-diamino and 2-amino-6hydroxy-8-choroalkyl purines [PDF]

open access: yes, 2003
8-haloalky purines were synthesized and infrared analysis (IR) carried out on them. The syntheses as well as the ill analyses are reported. The purines synthesized and studied include (i) 2,6-diamin-8-Chloromethyl purines, (ii) 2, 6-diamin-8-chlorethyl
I. M., Ejimadu
core  

Selective quenching of triplet excited states of pteridines

open access: yesPhotochemical and Photobiological Sciences, 2014
M. P. Denofrio   +3 more
semanticscholar   +1 more source

Native metabolomics identifies pteridines as CutA ligands and modulators of copper binding. [PDF]

open access: yesProc Natl Acad Sci U S A
Wagner BC   +16 more
europepmc   +1 more source

Early prediction of retinopathy of prematurity using targeted metabolomic profiling of 6-hydroxymethylpterin in preterm infants. [PDF]

open access: yesBMC Ophthalmol
Alp Ünkar Z   +9 more
europepmc   +1 more source

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