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1. Fly pollination drives convergence of flower coloration

Author:
Jair E. Garcia; Lea Hannah; Mani Shrestha; Martin Burd; Adrian G. Dyer
Source:
The new phytologist 2022 v.233 no.1 pp. 52-61
ISSN:
0028-646X
Subject:
color; flower color,   etc   ; Orchidaceae; bees; flowers; fly pollination;     Show all 6 Subjects
Abstract:
... Plant–pollinator interactions provide a natural experiment in signal evolution. Flowers are known to have evolved colour signals that maximise their ease of detection by the visual systems of important pollinators such as bees. Whilst most angiosperms are bee pollinated, our understanding on how the second largest group of pollinating insects, flies, may influence flower colour evolution is limite ...
DOI:
10.1111/nph.17696

2. The joint role of the late anthocyanin biosynthetic UFGT-encoding genes in the flowers and fruits coloration of horticultural plants

Author:
Noor Muhammad; Zhi Luo; Meng Yang; XianSong Li; ZhiGuo Liu; MengJun Liu
Source:
Scientia horticulturae 2022 v.301 pp. 111110
ISSN:
0304-4238
Subject:
color; fruit color,   etc   ; acylation; anthocyanins; biosynthesis; flowers; glucosylation; horticulture;     Show all 8 Subjects
Abstract:
... Flower and fruit color is one of the most important features of horticultural plants. Its formation and regulation are always affected by both internal and external factors. Among these factors, the UDP-glucose: flavonoid 3-O-glucosyltransferase (UFGTs) have a major role in the development and production of flowers and fruits colors. The UFGT enzymes are critical for upholding anthocyanin synthesi ...
DOI:
10.1016/j.scienta.2022.111110

3. Beyond Tristimulus Color Vision with Perovskite-Based Multispectral Sensors

Author:
Wayesh Qarony; Haris Ahmad Khan; Mohammad Ismail Hossain; Masayuki Kozawa; Alberto Salleo; Jon Yngve Hardeberg; Hiroyuki Fujiwara; Yuen Hong Tsang; Dietmar Knipp
Source:
ACS applied materials & interfaces 2022 v.14 no.9 pp. 11645-11653
ISSN:
1944-8252
Subject:
color; color vision,   etc   ; artificial intelligence; monitoring; reproduction; spectral analysis; vertical integration;     Show all 7 Subjects
Abstract:
... In this study, optical multispectral sensors based on perovskite semiconductors have been proposed, simulated, and characterized. The perovskite material system combined with the 3D vertical integration of the sensor channels allow for realizing sensors with high sensitivities and a high spectral resolution. The sensors can be applied in several emerging areas, including biomedical imaging, survei ...
DOI:
10.1021/acsami.1c25095

4. An algorithm for online detection of colour differences in warp knitted fabrics

Author:
Guosheng Xie; Yang Xu; Zhiqi Yu; Yize Sun
Source:
The journal of the Textile Institute 2022 v.113 no.1 pp. 159-165
ISSN:
1754-2340
Subject:
color,   etc   ; algorithms; lighting;     Show all 3 Subjects
Abstract:
... The current color difference online detection algorithm has poor real-time performance. The noise affects color difference monitoring and sampling detection results are different from online detection. Therefore, a color difference online detection algorithm is studied. Firstly, the Flat Field and Perfect Reflector Method (PRM) are used to correct the color illumination uniformity of warp knitted ...
DOI:
10.1080/00405000.2020.1866280

5. Effects of color–emotion association on facial expression judgments

Author:
Asumi Takei; Shu Imaizumi
Source:
Heliyon 2022 v.8 no.1 pp. e08804
ISSN:
2405-8440
Subject:
color,   etc   ; face; humans;     Show all 3 Subjects
Abstract:
... Color and emotion are metaphorically associated in the human mind. This color–emotion association affects perceptual judgment. For example, stimuli representing colors can affect judgment of facial expressions. The present study examined whether colors associated with happiness (e.g., yellow) and sadness (e.g., blue and gray) facilitate judgments of the associated emotions in facial expressions. W ...
DOI:
10.1016/j.heliyon.2022.e08804

6. Multiple levels of mental attentional demand modulate peak saccade velocity and blink rate

Author:
Valentina Bachurina; Marie Arsalidou
Source:
Heliyon 2022 v.8 no.1 pp. e08826
ISSN:
2405-8440
Subject:
color,   etc   ; cognition; eyes;     Show all 3 Subjects
Abstract:
... Every day we mentally process new information that needs to be attended, encoded and retrieved. Processing demands depend on the amount of information and the mental attentional capacity of the individual. Research shows that eye movement indices such as peak saccade velocity and blink rate are related to processes of attentional control, however it is still unclear how eye movements are affected ...
DOI:
10.1016/j.heliyon.2022.e08826

7. Where to display vital information? ERP evidence for background changes

Author:
Greeshma Sharma; Joy Chatterjee; Sushil Chandra
Source:
Heliyon 2022 v.8 no.4 pp. e09237
ISSN:
2405-8440
Subject:
color,   etc   ; electrophysiology; topography;     Show all 3 Subjects
Abstract:
... Critical decision systems require expeditious and accurate responses to the displayed information. In addition to content, location and background are equally important. Several visual search studies have pointed out the differences and compared modes of top-down attention allocation: distractor suppression and attentional capture. Previous studies have used color (mainly) and shape as a feature b ...
DOI:
10.1016/j.heliyon.2022.e09237

8. An R2R3-MYB transcription factor CmMYB21 represses anthocyanin biosynthesis in color fading petals of chrysanthemum

Author:
Yiguang Wang; Li-Jie Zhou; Yuxi Wang; Zhiqiang Geng; Baoqing Ding; Jiafu Jiang; Sumei Chen; Fadi Chen
Source:
Scientia horticulturae 2022 v.293 pp. 110674
ISSN:
0304-4238
Subject:
color; flower color,   etc   ; Chrysanthemum; anthocyanins; biosynthesis; cultivars; genes; tobacco; transcription factors; transcriptional activation;     Show all 10 Subjects
Abstract:
... Flower color is one of the most important traits in ornamental plants. Color fading due to the loss of anthocyanins is a common phenomenon during the flowering process. Here, an R2R3-MYB gene CmMYB21, which was up-regulated in petals during flower color fading process, was isolated from a chrysanthemum cultivar ‘Anastasia Pink’ and functionally characterized. The CmMYB21 protein belonging to subgr ...
DOI:
10.1016/j.scienta.2021.110674

9. A novel differential display material: K3LuSi2O7: Tb3+/Bi3+ phosphor with thermal response, time resolution and luminescence color for optical anti-counterfeiting

Author:
Mingxuan Zhang; Mochen Jia; Tianxiao Liang; Zhiying Wang; Hanyu Xu; Defang Duan; Yanling Wei; Zuoling Fu
Source:
Journal of colloid and interface science 2022 v.608 pp. 758-767
ISSN:
0021-9797
Subject:
color,   etc   ; polyacrylic acid; thermoluminescence;     Show all 3 Subjects
Abstract:
... Optical anti-counterfeiting and encryption have become a hotspot in information security. However, the advanced optical anti-counterfeiting technology still suffers from low security by single-luminescent mode. Herein, we present a novel multi-mode anti-counterfeiting strategy based on K₃LuSi₂O₇: Tb³⁺/Bi³⁺ (KLSO: Tb³⁺/Bi³⁺) phosphors for the first time. KLSO not only provides various lattice sites ...
DOI:
10.1016/j.jcis.2021.10.046

10. First record for a partial Isabelline colouration in a European mole, Talpa europaea, from Central Italy

Author:
Leonardo Brustenga
Source:
Mammalia 2022 v.86 no.3 pp. 243-246
ISSN:
1864-1547
Subject:
color,   etc   ; Talpa europaea; Italy;     Show all 3 Subjects
Abstract:
... The European mole Talpa europaea Linnaeus, 1758 is a quite common species in Central Italy. I report the first Isabelline individual of this species recorded in the scientific literature. Actually, this species is quite widespread throughout Europe, but coat-colouration anomalies have never been described in Central Italian mole populations. Further research is therefore needed to determine the pe ...
DOI:
10.1515/mammalia-2021-0116

11. Influence of expectation violation on the subsequent label search

Author:
Jianping Huang; Yufeng Shi; Xiaoang Wan
Source:
Food quality and preference 2022 v.100 pp. 104622
ISSN:
0950-3293
Subject:
color,   etc   ; flavor; food quality;     Show all 3 Subjects
Abstract:
... Previous research has shown that people rely on color expectations to guide the visual search for flavor labels. We report two experiments designed to examine how the violation of such expectations influenced the subsequent searches. Participants were cued by a flavor word before searching for the packaging with this flavor label. They were slower to find the target whose color violated their expe ...
DOI:
10.1016/j.foodqual.2022.104622

12. Single-Step Fabrication of High-Performance Extraordinary Transmission Plasmonic Metasurfaces Employing Ultrafast Lasers

Author:
Carlota Ruiz de Galarreta; Noemi Casquero; Euan Humphreys; Jacopo Bertolotti; Javier Solis; C. David Wright; Jan Siegel
Source:
ACS applied materials & interfaces 2022 v.14 no.2 pp. 3446-3454
ISSN:
1944-8252
Subject:
color,   etc   ; energy; transmittance; wavelengths;     Show all 4 Subjects
Abstract:
... Plasmonic metasurfaces based on the extraordinary optical transmission (EOT) effect can be designed to efficiently transmit specific spectral bands from the visible to the far-infrared regimes, offering numerous applications in important technological fields such as compact multispectral imaging, biological and chemical sensing, or color displays. However, due to their subwavelength nature, EOT me ...
DOI:
10.1021/acsami.1c19935

13. Textile colouration with natural colourants: A review

Author:
Mohammad Abbas Uddin; Md Mahbubor Rahman; Abu Naser Md Ahsanul Haque; Shamima Akter Smriti; Eshita Datta; Nawshin Farzana; Sutapa Chowdhury; Julfikar Haider; Abu Sadat Muhammad Sayem
Source:
Journal of cleaner production 2022 v.349 pp. 131489
ISSN:
0959-6526
Subject:
color,   etc   ; biotechnology; fabrics; mordants;     Show all 4 Subjects
Abstract:
... This paper provides an in-depth review of the natural colourants covering their classifications, sources, extraction techniques, application techniques in relation to different textile fibres and their advantages and challenges. The academic readers will find here an overview of the latest developments in extraction and application techniques of a variety of natural colourants. Almost all commerci ...
DOI:
10.1016/j.jclepro.2022.131489

14. Updating thermal imaging dataset of hand gestures with unique labels

Author:
Sreenivasa Reddy Yeduri; Daniel Skomedal Breland; Om Jee Pandey; Linga Reddy Cenkeramaddi
Source:
Data in Brief 2022 v.42 pp. 108037
ISSN:
2352-3409
Subject:
color,   etc   ; cameras; data collection;     Show all 3 Subjects
Abstract:
... An update to the previously published low resolution thermal imaging dataset is presented in this paper. The new dataset contains high resolution thermal images corresponding to various hand gestures captured using the FLIR Lepton 3.5 thermal camera and Purethermal 2 breakout board. The resolution of the camera is 160×120 with calibrated array of 19,200 pixels. The images captured by the thermal c ...
DOI:
10.1016/j.dib.2022.108037

15. Color preferences and gastrointestinal-tract retention times of microplastics by freshwater and marine fishes

Author:
Konori Okamoto; Miho Nomura; Yoshifumi Horie; Hideo Okamura
Source:
Environmental pollution 2022 v.304 pp. 119253
ISSN:
0269-7491
Subject:
color; color vision,   etc   ; Danio rerio; Oryzias latipes; excretion; freshwater; gastrointestinal system; ingestion; marine fish; microplastics; pollution;     Show all 11 Subjects
Abstract:
... We examined ingestion and retention rates of microplastics (MPs) by two freshwater (Japanese medaka and zebrafish) and two marine fish species (Indian medaka and clown anemonefish) to determine their color preferences and gastrointestinal-tract retention times. In our ingestion experiments, clown anemonefish ingested the most MP particles, followed by zebrafish, and then Japanese and Indian medaka ...
DOI:
10.1016/j.envpol.2022.119253

16. A photochromic and scintillation Eu-MOF with visual X-ray detection in bright and dark environments

Author:
Yu-He Sun; Chun-Lei Li; Wen-Fei Wang; Shuai-Hua Wang; Pei-Xin Li; Guo-Cong Guo
Source:
Chemical communications 2022 v.58 no.25 pp. 4056-4059
ISSN:
1364-548X
Subject:
color,   etc   ; X-radiation; absorption; ligands;     Show all 4 Subjects
Abstract:
... The detection of X-rays has always been a frontier of scientific research. An Eu-MOF with both X-ray-induced photochromic and scintillation properties has been synthesized through the combination of a photochromism-active viologen ligand and rare earth Eu element with high-efficiency absorption of X-rays. In a bright environment, Eu-MOF exhibits different color changes under high-energy X-rays and ...
DOI:
10.1039/d2cc00166g

17. A precise method of color space conversion in the digital printing process based on PSO-DBN

Author:
Zebin Su; Jinkai Yang; Pengfei Li; Junfeng Jing; Huanhuan Zhang
Source:
Textile research journal 2022 v.92 no.9-10 pp. 1673-1681
ISSN:
1746-7748
Subject:
color,   etc   ; algorithms; fabrics; models; research;     Show all 5 Subjects
Abstract:
... Neural networks have been widely used in color space conversion in the digital printing process. The shallow neural network easily obtains the local optimal solution when establishing multi-dimensional nonlinear mapping. In this paper, an improved high-precision deep belief network (DBN) algorithm is proposed to achieve the color space conversion from CMYK to L*a*b*. First, the PANTONE TCX color c ...
DOI:
10.1177/00405175211067287

18. A review on colorimetric assays for DNA virus detection

Author:
Mansoreh Abdolhosseini; Farshid Zandsalimi; Fahimeh Salasar Moghaddam; Gholamreza Tavoosidana
Source:
Journal of virological methods 2022 v.301 pp. 114461
ISSN:
0166-0934
Subject:
color,   etc   ; DNA; DNA viruses; colorimetry;     Show all 4 Subjects
Abstract:
... Early detection is one of the ways to deal with DNA virus widespread prevalence, and it is necessary to know new diagnostic methods and techniques. Colorimetric assays are one of the most advantageous methods in detecting viruses. These methods are based on color change, which can be seen either with the naked eye or with special devices. The aim of this study is to introduce and evaluate effectiv ...
DOI:
10.1016/j.jviromet.2022.114461

19. Carbon dots/ZnO quantum dots composite-based white phosphors for white light-emitting diodes

Author:
Wenjing Li; Min Wu; Hang Jiang; Longhui Yang; Chao Liu; Xiao Gong
Source:
Chemical communications 2022 v.58 no.12 pp. 1910-1913
ISSN:
1364-548X
Subject:
color,   etc   ; electrostatic interactions; fluorescence; temperature;     Show all 4 Subjects
Abstract:
... A facile synthetic approach to prepare environmentally friendly white fluorescent carbon dots (CDs)/ZnO quantum dots (QDs) composites through electrostatic force is described. This method can be used for fabrication of high-performance white light-emitting diodes (WLEDs). The fluorescence emission spectra of WLED devices covered a range from 425 nm to 750 nm. WLEDs had a CIE chromaticity coordinat ...
DOI:
10.1039/d1cc06180a

20. Color representation model for pre-colored fiber blends based on local-to-global features fusion

Author:
Li Yuan; Muli Liu; Junping Liu; Yali Yang; Xue Gong
Source:
The journal of the Textile Institute 2022 v.113 no.2 pp. 173-184
ISSN:
1754-2340
Subject:
color,   etc   ; colorimetry; fabrics; models; spectroscopy;     Show all 5 Subjects
Abstract:
... This paper proposes a color representation model of pre-colored fiber blends that combines global and local features, and the main purpose of this model is to establish scientific and effective evaluation standards for the colorimetry index of colored spun fabric, which can be used to solve the difficulty faced by people to accurately describe the overall coloration characteristics of dyed fibers ...
DOI:
10.1080/00405000.2020.1868136