Results 1 to 10 of about 262,925 (314)

Oscillating flower colour changes of Causonis japonica (Thunb.) Raf. (Vitaceae) linked to sexual phase changes [PDF]

open access: yesScientific Reports, 2022
Flower colour change may represent an ‘honest signal’ for pollinators, denoting flowers with good conditions for rewards and pollination. All previously reported flower colour changes are unidirectional, except for an incomplete case in one Fabaceae ...
Y. Furukawa, H. Tsukaya, N. Kawakubo
doaj   +2 more sources

Colour perception changes with basic colour word comprehension [PDF]

open access: yesDevelopmental Science, 2023
AbstractRecent work has investigated the origin of infant colour categories, showing pre‐linguistic infants categorise colour even in the absence of colour words. These infant categories are similar but not identical to adult categories, giving rise to an important question about how infant colour perception changes with the learning of colour words ...
Samuel H. Forbes, Kim Plunkett
openaire   +7 more sources

Sensitivity analysis and soft-computaional prediction of colour characteristics of dried tomatoes [PDF]

open access: yesActa Periodica Technologica, 2022
Excessive heating with hot-air oven dryers produces considerable losses in the quality of dried tomatoes, particularly in the organoleptic and colour characteristics.
Hussein Jelili Babatunde   +3 more
doaj   +1 more source

Surface roughness and colour changes of nanofilled composite resin after immersion in yogurt drink

open access: yesMajalah Kedokteran Gigi Indonesia, 2021
Nanofilled composite resin is one of restorative materials with some weaknesses, such as changes of colour and surface roughness. These weaknesses are attributed to some factors, including frequent consumption some beverages, including yoghurt drinks ...
Sindy Widyaningrum   +2 more
doaj   +1 more source

Psychedelics sea slugs: Observations on colour ontogeny in two nudibranch species from the genus Nembrotha (Doridina: Polyceridae)

open access: yesScientia Marina, 2023
In recent decades, thanks to the use of integrated taxonomy, the traditional recognition of a nudibranch species based on observation and colour pattern variation has become increasingly questioned, mainly due to the presence of cryptic and ...
Marta Pola   +2 more
doaj   +1 more source

Effectiveness of european oak wood staining with iron (ii) sulphate during natural weathering

open access: yesMaderas: Ciencia y Tecnología, 2021
Artificial graying of wood can be solution for contemporary trends of using uncoated wood for the arrangement of external architecture. The presented work was aimed at investigation of colour changes of European oak (Quercus sp.) wood surface treated ...
Agnieszka Jankowska   +1 more
doaj   +1 more source

New β-Carotene-Chitooligosaccharides Complexes for Food Fortification: Stability Study

open access: yesFoods, 2020
The application of β-carotene in food industry is limited due to its chemical instability. The drawback may be overcome by designing new delivery systems.
Alma Bockuviene, Jolanta Sereikaite
doaj   +1 more source

Explanation of the Colour Change in Alexandrites [PDF]

open access: yesScientific Reports, 2020
AbstractAlexandrites are remarkable and rare gemstones. They display an extraordinary colour change according to the ambient lighting, from emerald green in daylight to ruby red in incandescent light from tungsten lamps or candles. While this colour change has been correctly attributed to chromium impurities and their absorption band in the yellow ...
Xie, F   +9 more
openaire   +3 more sources

Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing

open access: yesCzech Journal of Food Sciences, 2013
The analysis was carried out of 5-hydroxymethyl-2-furfural (HMF) formation during the baking of shortbreads. The investigation was done on three types of shortbread in which sucrose, glucose, or fructose were used as sweeteners.
Stanisław KOWALSKI   +3 more
doaj   +1 more source

The Stiles-Crawford colour change [PDF]

open access: yesVision Research, 1974
Abstract To obtain the Stiles-Crawford colour change, the absorption of guided and unguided light by a cone outer segment as a function of the angle of incidence is estimated. The model is specified in two ways: the HE 1,1 model, based on a waveguide modal analysis, and the geometrical optics model.
Wijngaard, W., Bouman, M.A., Budding, F.
openaire   +3 more sources

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