Results 11 to 20 of about 559,400 (310)

Antifungal activity assessment of nanocomposites of natural chitosan and gelatin with a mahogany plant extract for conservation of historical textiles

open access: yesHeritage Science, 2022
Fungi and bacteria are important causes of damage to historical textiles. Many methods are used to resist innate damage in historical textiles. The study aim was to use an innovative method that loaded a mahogany plant extract onto natural chitosan and ...
Harby E. Ahmed   +2 more
doaj   +1 more source

Macular pigment and its contribution to visual performance and experience

open access: yesJournal of Optometry, 2010
There is now a consensus, based on histological, biochemical and spectral absorption data, that the yellow colour observed at the macula lutea is a consequence of the selective accumulation of dietary xanthophylls in the central retina of the living eye.
James Loughman   +4 more
doaj   +1 more source

Biomarkers for Response of Melanoma Patients to Immune Checkpoint Inhibitors: A Systematic Review

open access: yesFrontiers in Oncology, 2017
BackgroundImmune checkpoint inhibitors (ICIs), targeting CTLA-4 or PD-1 molecules, have shown impressive therapeutic results. However, only 20–40% of advanced melanoma patients have durable responses to ICI, and these positive effects must be balanced ...
Charissa A. C. Jessurun   +3 more
doaj   +1 more source

Beta-Carotene Supplementation for Sows: Reproductive Parameters and Productive Performance of Piglets

open access: yesAnimals, 2023
The rapid fetal development and the increased demand for milk result in a catabolic state and oxidative stress in hyperprolific sows. Despite animal defense mechanisms, the dietary supplementation of antioxidants is being evaluated to reduce the impacts ...
Amanda Medeiros Araújo de Oliveira   +12 more
doaj   +1 more source

Lutein, zeaxanthin and meso-zeaxanthin content of eggs laid by hens supplemented with free and esterified xanthophylls

open access: yesJournal of Nutritional Science, 2016
The xanthophyll carotenoids lutein (L), zeaxanthin (Z) and meso-zeaxanthin (MZ) are found at the macula, the central part of the retina, where they are referred to as macular pigment (MP).
John M. Nolan   +5 more
doaj   +1 more source

Electrocoagulation Sludge Valorization—A Review

open access: yesResources, 2021
In the field of electrocoagulation (EC), various studies on pollutant removal and on the use of different EC technologies have already been made. An EC process generates sludge, which is considered waste, resulting in increased operational costs that ...
Kyösti Rajaniemi   +2 more
doaj   +1 more source

Arbutin as a Skin Depigmenting Agent with Antimelanogenic and Antioxidant Properties

open access: yesAntioxidants, 2021
Arbutin is a compound of hydroquinone and D-glucose, and it has been over 30 years since there have been serious studies on the skin lightening action of this substance.
Yong Chool Boo
doaj   +1 more source

Measuring Visual Function Using the MultiQuity System: Comparison with an Established Device

open access: yesJournal of Ophthalmology, 2014
Purpose. To compare measures of visual acuity (VA) and contrast sensitivity (CS) from the Thompson Xpert 2000 and MultiQuity (MiQ) devices. Methods. Corrected distance VA (CDVA) and CS were measured in the right eye of 73 subjects, on an established ...
Patrycja Smolarek-Kasprzak   +7 more
doaj   +1 more source

Microbial Carotenoids Production: Strains, Conditions, and Yield Affecting Factors

open access: yesEnvironmental and Climate Technologies, 2023
The research and development of carotenoid production has a long history, and interest in this group of pigments has not decreased to this day. Six existing carotenoids are considered industrially important: astaxanthin, β-carotene, lutein, zeaxanthin ...
Raita Svetlana   +6 more
doaj   +1 more source

Quantitative GC–MS Analysis of Artificially Aged Paints with Variable Pigment and Linseed Oil Ratios

open access: yesMolecules, 2021
In this study, quantitative gas chromatography–mass spectrometry (GC–MS) analysis was used to evaluate the influence of pigment concentration on the drying of oil paints.
Eliise Tammekivi   +3 more
doaj   +1 more source

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