scholarly journals Categorisation of Colour Terms Using New Validation Tools: A Case Study and Implications

i-Perception ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 204166951876004 ◽  
Author(s):  
Shabnam Arbab ◽  
Jonathan A. Brindle ◽  
Barbara S. Matusiak ◽  
Christian A. Klöckner
Keyword(s):  
Visual Perception ◽  
Northern Ghana ◽  
Chromaticity Diagram ◽  
Online Appendix ◽  
Single Colour ◽  
Colour System ◽  
Cie Chromaticity ◽  
Colour Terms ◽  
Focal Task

This article elaborates on the results of a field experiment conducted among speakers of the Chakali language, spoken in northern Ghana. In the original study, the Color-aid Corporation Chart was used to perform the focal task in which consultants were asked to point at a single colour tile on the chart. However, data from the focal task could not be analysed since the Color-aid tiles had not yet been converted into numerical values set forth by the Commission internationale de l’éclairage (CIE). In this study, the full set of 314 Color-aid tiles were measured for chromaticity and converted into the CIE values at the Daylight Laboratory of the Norwegian University of Science and Technology. This article presents the conversion methodology and makes the results of the measurements, which are available in the Online Appendix. We argue that some visual-perception terms cannot be reliably ascribed to colour categories established by the Color-aid Corporation. This suggests that the ideophonic expressions in the dataset do not denote ‘colours’, as categorised in the Color-aid system, as it was impossible to average the consultants’ data into a CIE chromaticity diagram, illustrate the phenomena on the Natural Colour System (NCS) Circle and Triangle diagrams, and conduct a statistical analysis. One of the implications of this study is that a line between a visual-perception term and a colour term could be systematically established using a method with predefined categorical thresholds.

Photoluminescence, photocatalysis and Judd–Ofelt analysis of Eu3+-activated layered BiOCl phosphors

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4109-4120 ◽  
Author(s):  
Rohit Saraf ◽  
C. Shivakumara ◽  
Sukanti Behera ◽  
H. Nagabhushana ◽  
N. Dhananjaya
Keyword(s):  
Crystal Structure ◽  
Field Emission ◽  
Electron Micrographs ◽  
Dye Degradation ◽  
Scanning Electron Micrographs ◽  
Chromaticity Diagram ◽  
Cie Chromaticity ◽  
Scanning Electron

Crystal structure of tetragonal BiOCl, field emission scanning electron micrographs, CIE chromaticity diagram and percentage of RhB dye degradation of Bi1−xEuxOCl.

Identification and prioritization of farmers' innovations in northern Ghana

2014 ◽  
Vol 30 (6) ◽  
pp. 537-549 ◽  
Author(s):  
Justice A. Tambo ◽  
Tobias Wünscher
Keyword(s):  
Smallholder Farmers ◽  
Household Survey ◽  
Northern Ghana ◽  
Plant Residues ◽  
Simple Method ◽  
Pests And Diseases ◽  
Innovation Contest ◽  
Scientific Validation ◽  
Livestock Diseases

AbstractFarmers are innovators and experimenters and not just adopters of introduced technologies. The innovations developed by farmers could complement the highly promoted externally driven technologies in addressing the numerous challenges facing agriculture. The aim of this paper was to identify outstanding innovations developed by smallholder farmers in northern Ghana, and prioritize the high potential ones for further scientific validation or dissemination. Using an innovation contest that rewards farmers' creativity, we identified 29 promising innovations. Additionally, 19 innovations were scouted through a household survey. The innovations are largely extensive modifications of existing practices or combinations of different known practices in unique ways to save costs or to address crop and livestock production constraints. While some of the identified innovations can be recommended or disseminated to other farmers, most of them may require further validation or research. However, validating all of these innovations will be very expensive and time-consuming. We propose the multi-criteria decision-making analysis (MCDM) as a simple method to prioritize farmers' innovations. Using this method, we find that among the most promising innovations are those involving the control of weeds, pests and diseases using plant residues and extracts, and the treatment of livestock diseases using ethnoveterinary medicines. We briefly explain the six most highly ranked innovations. This case study from northern Ghana provides further proof that smallholder farmers develop diverse and spectacular innovations to address the myriad challenges they face, and these need to be recognized and promoted. We also conclude that contest and MCDM are useful methods that can be applied in unearthing and prioritizing farmer innovations, respectively.

scholarly journals A study of loan colour terms in the Komi languages

2014 ◽  
Vol 5 (2) ◽  
pp. 91-116
Author(s):  
Elena Ryabina
Keyword(s):  
Comparative Study ◽  
Field Method ◽  
Present Stage ◽  
Light Blue ◽  
System Evolution ◽  
Basic Colour ◽  
Colour Category ◽  
Colour System ◽  
Colour Term ◽  
Colour Terms

[NOTE. This abstract contains diacritics that may not display correctly.]This article deals with a comparative study of loaned colour vocabulary in the closely related Komi-Zyrian and Komi-Permyak languages. Data were originally collected by using the field method suggested for establishing basic colour terms by Davies and Corbett (1994, 1995). Sixty-five coloured tiles were used as stimuli. The study explored and compared the psychological salience of recent Russian loan colour terms. It was found that loan colour words occurred more in the Komi-Permyak data. The most salient adopted colour term in the Komi-Permyak language is zeĺone̮j ‘green’. In the next stage of basic colour system evolution in Komi-Zyrian and Komi-Permyak, the loan colour terms korič́ńeve̮j ‘brown’, fioĺetove̮j ‘purple’ and oranževe̮j ‘orange’ may appear. At the present stage of colour category development, the Russian basic terms rozovyj ‘pink’ and goluboj ‘light-blue’ are not salient in either language.Elena Ryabina: Laenvärvinimedest komi keeltes. Artiklis võrreldakse vene laenvärvinimesid omavahel lähedalt suguluses olevas sürjakomi ja permikomi keeles. Andmed on kogutud Daviese ja Corbett’ (1995) välimeetodiga. Uurimuses on kasutatud 65 standardset Color-aid Corporationi värvitahvlit. Uurimuse eesmärk on laenvärvinimede psühholoogilise esilduvuse väljaarvutamine ja võrdlemine. Tulemused näitavad, et permikomi andmestik sisaldab rohkem laenvärvinimesid. Kognitiivse esiletuleku indeksi järgi on neist psühholoogiliselt esilduvaim zeĺone̮j ‘roheline’. Põhivärvinimede süsteemi arenedes võivad komi keeltes eeldatavasti leksikaliseeruda korič́ńeve̮j ‘pruun’, fioĺetove̮j ‘lilla’ ja oranževe̮j ‘oranž’, sest need on mõlemas komi keeles kodunenud. Laenvärvinimed rozovyj ‘roosa’ ja goluboj ‘helesinine’ ei ole praegusel põhivärvinimede arenguetapil psühholoogiliselt esiletulevad kummaski komi keeles.Märksõnad: laensõna, põhivärvinimi, psühholoogiline esilduvus, sürjakomi keel, permikomi keel

scholarly journals Landscape Changes and Fragmentation Analysis in a Guinea Savannah Ecosystem: Case study of Talensi and Nabdam Districts of the Upper East region, Ghana

2016 ◽  
Vol 8 (1) ◽  
pp. 41 ◽  
Author(s):  
Steve Ampofo ◽  
Isaac Sackey ◽  
Boateng Ampadu
Keyword(s):  
Human Interaction ◽  
Northern Ghana ◽  
Landcover Change ◽  
East Region ◽  
Upper East Region ◽  
Spatio Temporal ◽  
Categorical Maps ◽  
Landsat Satellite

Landcover change is an observed natural change dynamics at both the local and regional levels. However, its scales are exacerbated by human interaction with its natural environment. The study examines these spatio-temporal changes in landcover and the level to which the change is accompanied by fragmentation of the identifiable cover types in the Talensi and Nabdam districts in Northern Ghana. The research uses digital classification of Landsat satellite imagery for 1999 and 2007 to produce the cover types which results in good accuracy levels of 66.39% and 63.03% respectively. Fragmentation analysis of the landscape was computed using FRAGSTATS® software for categorical maps obtained from the classified landcover maps for the two years. All cover types increased marginally. However, Bare areas decreased by as much as 17.17% and that of water decreased from 3% to 1%. The changing landscape involving conversions within and among various cover types is accompanied by fragmentation in all classes but more pronounced in the Bare class. The Bare class type which has more patches corresponds to the class with increased cover size and rather strangely decreases in the mean path size.

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