Results 11 to 20 of about 770 (156)

Community-driven variations in snow algae color modulate snow albedo reduction. [PDF]

open access: yesNew Phytol
Summary Snow algae blooms visibly alter snow color and surface energy balance, yet the biological basis of this variability remains unclear. We investigated how pigment composition and community structure shape the optical properties of snow algae blooms of distinct colors – red, orange, and green – co‐occurring within the same snowfield in Glacier ...
Almela P   +4 more
europepmc   +2 more sources

Pigment molecular composition reveals significant information for visual communication

open access: yesFunctional Ecology, Volume 36, Issue 11, Page 2756-2762, November 2022., 2022
Read the free Plain Language Summary for this article on the Journal blog. Abstract Melanins are the most common pigments in vertebrates and, as such, fufill multiple adaptive functions, including honest signalling. This is the case of male pied flycatchers Ficedula hypoleuca, whose dorsal plumage, composed of black and grey feathers pigmented by ...
Ismael Galván
wiley   +1 more source

Blackness and the God of the Oppressed

open access: yesThe Ecumenical Review, Volume 74, Issue 4, Page 576-588, October 2022., 2022
Abstract The state of blackness oscillates between two speculative positions: The first puts forward the irrelevance of race in the modern technological period, a view often coming from those who are colour blind and “optimistic” futurists. The second postulates the need to reaffirm the condition of blackness in a racist and capitalistic production ...
Hlulani Mdingi
wiley   +1 more source

Patients with Retinitis Pigmentosa May Have a Higher Risk of Developing Open‐Angle Glaucoma

open access: yesJournal of Ophthalmology, Volume 2022, Issue 1, 2022., 2022
Background. Retinitis pigmentosa (RP) is the most common retinal hereditary dystrophy, which can lead to blindness if it progresses. Similarly, open‐angle glaucoma (OAG) is a genetic disorder. The similarities in genetic variants and pathophysiology between RP and OAG have been reported.
Man-Chen Hung   +2 more
wiley   +1 more source

Effects of Cataract Surgery on Vision‐Related Quality of Life in Patients with Retinitis Pigmentosa and the Predictive Factors of Quality of Life Improvement

open access: yesBioMed Research International, Volume 2021, Issue 1, 2021., 2021
Purpose. To determine the effects of cataract surgery and preoperative factors on the vision‐related quality of life (QOL) in patients with retinitis pigmentosa (RP). Materials and Methods. This was a prospective, interventional study of 54 patients diagnosed with RP.
Gen Miura   +5 more
wiley   +1 more source

Genetic Profile and Associated Characteristics of 150 Korean Patients with Retinitis Pigmentosa

open access: yesJournal of Ophthalmology, Volume 2021, Issue 1, 2021., 2021
Purpose. Retinitis pigmentosa (RP) shows great diversity between genotypes and phenotypes, and it is important to identify the causative genes. This study aimed to analyze the molecular profiles, associated ocular characteristics, and progression of RP in Korean patients. Methods.
You Na Kim   +6 more
wiley   +1 more source

Pigmentos de Triatomideos brasileiros [PDF]

open access: yesMemórias do Instituto Oswaldo Cruz, 1975
Os extratos em metanolºHCL e amônia-mercaptoetanol de conexivos de Triatomídeos examinados apresentaram espectros de absorção no visível com máximo único e nítido em 400 nm. A cromatografia em camada fina de silica-gel e em papel revelou a pesença de pterinas fluorescentes à luz ultravioleta filtrada em 365 nm a julgar pelos Rf comparados com os de ...
Villela, Gilberto G.   +1 more
openaire   +3 more sources

Pigmentos BIOcolores

open access: yes, 2023
Los pigmentos biológicos son compuestos químicos que se encuentran en organismos vivos y que son responsables de la coloración de diversas estructuras, como piel, plumaje, exoequeleto, ojos, alas, flores, hojas y otros tejidos.
openaire   +1 more source

Effect of pH on the copigmentation of anthocyanins from Cabernet Sauvignon grape extracts with organic acids Efeito do pH na copigmentação de antocianinas do extrato de uvas Cabernet Sauvignon com ácidos orgânicos

open access: yesScientia Agricola, 2010
Anthocyanins show low-stability when exposed to different food processing conditions. Copigmentation is one of the main reactions contributing to the in vivo color responsible to the stability of anthocyanins.
Cony Gauche   +2 more
doaj   +1 more source

Síntesis de un pigmento rojo a partir de nanopartículas de oro

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2012
A simple method of synthesising red pigments for ceramic glazes, based on gold nanoparticles protected by a refractory oxide capsule, was developed. Gold nanoparticles of an appropriate size were obtained by reaction in an aqueous medium between an Au ...
Agut, P., Palacios, M. D., Mestre, S.
doaj   +1 more source

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