Relevant bibliographies by topics / Colour loss

Academic literature on the topic 'Colour loss'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Colour loss"

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McBeath, Alastair. "Weight Loss Versus Colour Gain?" Astronomy & Geophysics 38, no. 2 (April 1997): 9. http://dx.doi.org/10.1093/astrogeo/38.2.9-b.

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Wright, J. Barry, and Immanuel McKenzie. "Stress-Induced Loss of Colour Vision." Clinical Child Psychology and Psychiatry 1, no. 2 (April 1996): 283–86. http://dx.doi.org/10.1177/1359104596012009.

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Uttenthaler, Stefan, Iain McDonald, Klaus Bernhard, Sergio Cristallo, and David Gobrecht. "Does 3rd dredge-up reduce AGB mass-loss?" Proceedings of the International Astronomical Union 14, S343 (August 2018): 529–30. http://dx.doi.org/10.1017/s1743921318006610.

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AbstractWe follow up on a previous finding that Miras containing the third dredge-up (3DUP) indicator technetium (Tc) in their atmosphere form a different sequence of K – [22] colour as a function of pulsation period than Miras without Tc. A near-to-mid-infrared colour such as K – [22] is a good probe for the dust mass-loss rate (MLR) of these AGB stars. Contrary to what one might naïvely expect, Tc-poor Miras show redderK – [22] colours (i.e. higher dust MLRs) than Tc-rich Miras at a given period. In the follow-up work, the previous sample is extended and the analysis is expanded towards other colours and ISO dust spectra to check if the previous finding is due to a specific dust feature in the 22 μm band. We also investigate if the same two sequences can be revealed in the gas MLR. Different hypotheses to explain the observation of two sequences in the P vs. K – [22] diagram are discussed and tested, but so far none of them convincingly explains the observations.
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Steyn, W. J., S. J. E. Wand, D. M. Holcroft, and G. Jacobs. "RED COLOUR DEVELOPMENT AND LOSS IN PEARS." Acta Horticulturae, no. 671 (April 2005): 79–85. http://dx.doi.org/10.17660/actahortic.2005.671.9.

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Lamb, R. C., and M. Porter. "Sudden onset hair loss and colour change." BMJ 347, oct31 5 (October 31, 2013): f6112. http://dx.doi.org/10.1136/bmj.f6112.

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ABDEL-HAY, A., S. SIVAPRASAD, E. KONSTANTAKOPOULOU, DF EDGAR, and JL BARBUR. "Severity of colour vision loss in diabetes." Acta Ophthalmologica 90 (August 6, 2012): 0. http://dx.doi.org/10.1111/j.1755-3768.2012.4724.x.

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Cavalleri, Alessandro, Fabriziomaria Gobba, Monica Paltrinieri, Guglielmina Fantuzzi, Elena Righi, and Gabriella Aggazzotti. "Perchloroethylene exposure can induce colour vision loss." Neuroscience Letters 179, no. 1-2 (September 1994): 162–66. http://dx.doi.org/10.1016/0304-3940(94)90959-8.

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Kuvshinov, Viatcheslav, and Eugene Bagashov. "Colour Information Loss due to Decoherence in Vacuum." EPJ Web of Conferences 125 (2016): 04015. http://dx.doi.org/10.1051/epjconf/201612504015.

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Viaene, M. K. "Relation between colour vision loss and occupational styrene exposure." Occupational and Environmental Medicine 60, no. 3 (March 1, 2003): 222. http://dx.doi.org/10.1136/oem.60.3.222.

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Mergler, Donna, Rosemarie Bowler, and James Cone. "Colour vision loss among disabled workers with neuropsychological impairment." Neurotoxicology and Teratology 12, no. 6 (November 1990): 669–72. http://dx.doi.org/10.1016/0892-0362(90)90084-p.

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Dissertations / Theses on the topic "Colour loss"

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Steyn, Willem J. (Willem Jacobus). "Red colour development and loss in pear fruit." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53569.

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Thesis (PhD (Agric))--University of Stellenbosch, 2003.
ENGLISH ABSTRACT: Downgrading of fruit due to insufficient red colour has limited the profitability of lucrative blushed pear cultivars (Pyrus communis L.). In 'Rosemarie', poor fruit colour has been ascribed to pre-harvest red colour loss during periods of high temperature. The regulation of colour development in pears has not been studied and, in addition, little is known about anthocyanin degradation in attached fruit. Changes in colour were recorded and phenylalanine ammonia-lyase (PAL) and UDPGalactose: flavonoid-3-0-glycosyltransferase (UFGT) activities assessed in response to cold fronts and during fruit development in order to establish the regulation of colour development in red and blushed pear cultivars. Best red colour was generally attained a month or more before harvest whereafter red colour faded towards harvest. Unlike in some other fruits, UFGT activity apparently did not limit colour development whereas fading of red colour towards harvest might relate to decreasing PAL activity. 'Rosemarie' colour fluctuated considerably, increasing with cold fronts and decreasing during intermittent warmer periods, while red colour was more stable in other cultivars. PAL and UFGT activities in 'Rosemarie' increased in response to low temperatures, but were unaffected in 'Bon Rouge'. We concluded that anthocyanin synthesis in 'Rosemarie' requires low temperatures while colour development in 'Bon Rouge' and probably also other cultivars is primarily regulated by endogenous factors. Detached pome fruit were used to study temperature and light effects on anthocyanin degradation and fruit colour and to assess the modifying effect of anthocyanin concentration on colour loss. Anthocyanin degradation and red colour loss increased linearly between 10°C and 30°C. Irradiation further increased the rate of degradation and colour loss. The rate of colour loss depended on anthocyanin concentration, being much faster in fruit with high compared to fruit with low pigment levels. This was ascribed to the exponential relationship between anthocyanin concentration and hue at high pigment levels and the linear relationship at lower pigment levels. Anthocyanin degradation and pre-harvest red colour loss in 'Rosemarie' was quantitatively confirmed and corresponded with a warm period during fruit development. Based on these data, we attributed the susceptibility of 'Rosemarie' to pre-harvest colour loss to low anthocyanin concentrations in its peel that allow the visualisation of net anthocyanin degradation at high temperatures. Overhead evaporative cooling (EG) as measure to improve red colour in blushed pears was evaluated. 'Rosemarie' fruit that received pulsed EG applications from two weeks before harvest at air temperatures exceeding 28°G were redder than control fruit at harvest. EG had no effect on 'Forelle' colour. Though EG could be used to improve 'Rosemarie' fruit colour in warm production areas, its effect was relatively small compared to colour change in response to temperature. Lastly, we assessed the photoprotective function of anthocyanin in pear peel. Photoinhibition was evident in exposed faces of pears under natural conditions. The extent of photoinhibition increased with decreasing redness of peel and was maintained after photoinhibitory treatment. Although anthocyanin was apparently able to afford photoprotection at 40oG, we argued against this as a general function. There were indications that photoprotection was associated, but not necessarily due to light attenuation by anthocyanin.
AFRIKAANSE OPSOMMING: Afgradering van vrugte vanweë onvoldoende rooi kleur beperk die winsgewendheid van blospeercultivars (Pyrus communis L.). In die geval van 'Rosemarie' word swak kleur toegeskryf aan vooroes rooikleurverlies gedurende warm periodes. Die regulering van kleurontwikkelling in pere is nog nie ondersoek nie terwyl min bekend is oor antosianiendegradasie aan die boom. Om die regulering van kleurontwikkelling in rooi- en blospeercultivars vas te stel, is veranderinge in kleur en in die aktiwiteit van fenielalanien ammonia-liase (FAL) en UDPGalaktose: flavonoied-3-o-glikosieltransferase (UFGT) gemeet gedurende vrugontwikkelling en in reaksie op koue fronte. Pere was op hul rooiste 'n maand of langer voor oes. Hierna het rooi kleur afgeneem tot met oes. Anders as in sommige ander vrugsoorte het UFGT aktiwiteit nie kleurontwikkeling beperk nie. Die afname in rooi kleur tot met oes mag egter verband hou met 'n gelyktydige afname in FAL aktiwiteit. 'Rosemarie' kleur het aansienlik gefluktueer in reaksie op temperatuur. Rooi kleur het toegeneem met koue fronte en afgeneem in die warmer periodes tussen fronte. Rooi kleur was meer stabiel en klaarblyklik minder afhanlik van lae temperature in ander peercultivars. Die noodsaaklikheid van lae temperature vir kleurontwikkelling in 'Rosemarie' is bevestig deur 'n toename in ensiemaktiwiteit in reaksie op koue fronte. Lae temperature het geen effek gehad op ensiemaktiwiteit in 'Bon Rouge' nie. Appels en pere is gebruik om die effek van temperatuur en lig op antosianiendegradasie en vrugkleur te ondersoek. Die modifiserende effek van antosianienkonsentrasie op kleurverlies is ook ondersoek. Antosianiendegradasie en rooi kleurverlies het lineêr toegeneem tussen 10° en 30°C. Beligting het degradasie en kleurverlies verder versnel. Die tempo van kleurverlies was afhanklik van antosianienkonsentrasie. Kleurverlies was aansienlik vinniger in vrugte met hoë pigmentvlakke, in vergelyking met vrugte met lae pigmentvlakke vanweë die eksponensiële verwantskap tussen antosianienkonsentrasie en kleurskakeringswaardes (hue values) by hoë pigmentvlakke en die lineêre verwantskap by lae pigmentvlakke. Antosianiendegradasie en vooroes rooikleurverlies in 'Rosemarie' is kwantitatief bevestig en het saamgeval met 'n warm periode tydens vrugontwikkelling. Gebaseer op hierdie data is die gevoeligheid van 'Rosemarie' vir vooroes rooikleurverlies toegeskryf aan lae antosianienkonsentrasies wat die sigbaarheid van netto antosianiendegradasie by hoë temperature verhoog. Die gebruik van oorhoofse evaporatiewe verkoeling (EG) om rooi kleur van blospere te verbeter is ge-evalueer. 'Rosemarie' vrugte wat evaporatief verkoel is bo 28°G vanaf twee weke voor oes, was rooier as kontrole vrugte by oes. 'Forelle' kleur het nie gereageer op EG nie. Die effek van EG op vrugkleur was relatief klein in vergelyking met die effek van temperatuur. AI kan EG 'Rosemarie' kleur verbeter in warm produksiestreke sou dit meer effektief wees om 'Rosemarie' se verbouing te beperk tot koeler klimaatstreke. Laastens is die vermoë van antosianien om peerskil teen fotoinhibisie te beskerm ondersoek. Fotoinhibisie was aanwesig in vrugskil wat direk blootgestel was aan sonlig in die boord. Die omvang van fotoinhibisie het toegeneem met 'n afname in rooi pigmentasie van vrugskil. Die verband tussen skilkleur en fotoinhibisie was steeds aanwesig na blootstelling aan ligstres by 10° en 400G. Ons het egter geredeneer teen 'n algemene funksie vir antosianien in fotobeskerming by hoë temperature. Verder was daar aanduidings dat, alhoewel geassossieer met rooi skilkleur, beskerming teen ligstres nie noodwendig te wyte was aan antosianien nie.
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Fergusson, Stanley MacArthur, and mac fergusson@rmit edu au. "The Effect of Laundry Detergents and Residual Alkali on the Light Fastness of Reactive Dyes on 100% Cotton." RMIT University. Fashion and Textiles, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081128.162252.

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This study presents findings on the effect of domestic laundry detergents on the fastness to light of selected fibre reactive dyes applied to cotton. The study was carried out to elucidate the reasons for the accelerated colour loss of cotton garments washed under Australian domestic laundering conditions. Cotton fabric dyed with commonly used reactive dyes were laundered with water only, several domestic detergents and a laboratory formulated neutral detergent, and then exposed to light for two hours in the wet state. Quantities of detergent used were in accordance with the manufacturers recommendations. Exposures were repeated fifteen times equivalent to 30 hours exposure. Colour loss and colour difference were measured after 5, 10 and 15 wash cycles and 10, 20 and 30 hours exposure. When the fabric was exposed wet the colour faded more rapidly than when exposed dry to light. Detergents increased the colour loss even when the fabric was not exposed to light. The presence of an oxidizing bleach (sodium perborate) in the detergent increased colour loss during washing and wet exposure to light. Ultraviolet radiation from the light source, heat, moisture, alkali and oxidising bleach during exposure resulted in hydrolysis of the dye-fibre bond causing dye desorption during washing and rinsing. Water alone increased the fading of the dyes most likely due to presence of dissolved oxygen held within the fibre. The combination of ultraviolet radiation and oxidizing bleaches altered the chemistry of the dye and hence its shade. This was particularly evident on the black dye and one of the navy blue dyes.
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Korsukovas, Audrius. "Kiaulienos cheminių, fizinių ir technologinių savybių kitimas giluminio užšaldymo ir laikymo metu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060228_105211-18106.

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Introduction. At low temperature the preservation of foodstuffs is one of the best ways of their storage and therefore this method is widely used in meat industry. The low temperature suppresses the activity of microorganisms and tissue ferments. Therefore the meat preserved by freezing keeps for a long time its initial properties and there are only minimal changes of food value and taste. At low temperature the activity of ferments slows down but does not stop. Work object. The work object is the determination of the change of physical-chemical properties of meat during freezing and keeping in - 180 C and - 860 C temperature. Work methodics. The research as fulfilled at the laboratory of the evaluation of the cattle meat properties and the meat quality. For the rersearch taken 14 Lithuanian white pig meat samples the mean weight of which was 500 g. were taken. They were put into special freezing bags and were frozen at temperature -180 C, and -860 C. Before freezing it the physical-chemical properties of the meat were determined. Two examples from each meat samples were researched. The determination of the physical-chemical properties of the meat was fulfilled every month. Also were was taken 6 Lithuanian white pig meat samples the mean weight of which was 500 g. Before freezing it the physical-chemical properties of the meat were determined. After that was made green tea extract, 500 ml. Water ant 50 g tea. All extract was inject in to the meat samples. They were put... [to full text]
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Shahid, Hiba. "Lossy color image compression based on quantization." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54781.

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Significant improvements that are based on quantization can be made in the area of lossy image compression. In this thesis, we propose two effective quantization based algorithms for compressing two-dimensional RGB images. The first method is based on a new codebook generation algorithm which, unlike existing VQ methods. It forms the codewords directly in one step, using the less common local information in every image in the training set. Existing methods form an initial codebook and update it iteratively, by taking the average of vectors representing small image regions. Another distinguishing aspect of this method is the use of non-overlapping hexagonal blocks instead of the traditional rectangular blocks, to partition the images. We demonstrate how the codewords are extracted from such blocks. We also measure the separate contribution of each of the two distinguishing aspects of the proposed codebook generation algorithm. The second proposed method, unlike all known VQ algorithms, does not use training images or a codebook. It is implemented to further improve the image quality resulting from the proposed codebook generation algorithm. In this algorithm, the representative pixels (i.e. those that represent pixels that are perceptually similar) are extracted from sets of perceptually similar color pixels. Also, the image pixels are reconstructed using the closest representative pixels. There are two main differences between this algorithm and the existing lossy compression algorithms including our proposed codebook generation algorithm. The first is that this algorithm exploits the image pixel correlation according to the viewer’s perception and not according to how close it is numerically to its neighboring pixels. The second difference is that this algorithm does not reconstruct an entire image block simultaneously using a codeword. Each pixel is reconstructed such that it has the value of its closest representative pixel.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Gonçalves, Letícia Gomes. "Associação entre perda dentária e desigualdades relacionadas à cor da pele em adultos : resultados do Estudo Pró-Saúde." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/52696.

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A perda dentária representa o acúmulo de agravos à saúde bucal ao longo da vida. Estudos apontam que minorias étnico-raciais apresentam maior prevalência de perda dentária mesmo após ajuste para fatores demográficos e socioeconômicos; e sugerem que o efeito residual desta associação poderia ser explicado pela discriminação. O objetivo do estudo foi avaliar a relação entre perda dentária e cor da pele, bem como a contribuição da discriminação auto-referida, condição material de vida e hábitos comportamentais como explicações para esta associação. O estudo foi realizado a partir da análise transversal de dados do Estudo Pro-saúde, que avaliou uma coorte de 4030 funcionarios tecnico-administrativos de campi universitários no Rio de Janeiro, através de questionários auto-preenchíveis, entre1999 e 2001. A análise estatística foi realizada através da regressão logística ordinal. As análises foram feitas para os conjunto de variáveis, em que a variável cor da pele foi mantida independente da significância estatística. No primeiro bloco, a associação entre cor da pele e perda dentária foi controlada por variáveis demográficas (idade, sexo). No segundo bloco ,controlou-se pelas variáveis do bloco 1 mais fatores comportamentais (i.e. fumo, visita ao dentistas, consumo de álcool e situação conjugal). No terceiro bloco controlou-se pelas variáveis do bloco 1 mais fatores socioeconômicos (situação econômica na infância, grau de instrução da mãe, grau de instrução atual e renda familiar equivalizada). No quarto bloco, foram testadas as associações com variáveis de discriminação. No modelo final, foram mantidas as variáveis que alcançaram o nível de significância de 25,0% nos blocos (modelos) prévios. Após ajuste para fatores demográficos, condição material de vida e hábitos comportamentais, a chance de perda dentária continuou maior entre negros (OR=1,46; IC95% 1,21–1,77) e pardos (OR=1,31; IC95% 1,10–1,55) em relação aos brancos. A discriminação auto referida não foi associada ao desfecho.
Tooth loss is the accumulation of oral health hazards such as lack of access to dental care, inappropriate health behavioral, low socioeconomic status. Studies have also shown more tooth loss among racial/ethnic minorities. Racial discrimination has been associated with racial/ethnic disparities in health, affecting the individual and population health. The study aims to evaluate the association between race-ethnicity and tooth loss and the role of socioeconomic status, health behaviors, health services access and self-reported discrimination. Baseline cross-sectional data were obtained from the Pro-Saúde Cohort Study (Rio de Janeiro-Brazil) in 4030 civil servants, and analyzed with ordered logistic regression. The outcome was self-reported tooth loss measured in four ordered categories. In the full model, adjusted for behavioral, socioeconomic, dental care and demographic variables, the OR was, respectively 1.31 (IC 95%: 1.10–1.55) and 1.46 (IC 95%: 1.21–1.77) for browns and blacks. There was no significant association between tooth loss and self-reported discrimination.
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Del, Valle Cárdenas Aldo Fernando. "Estructura y color de los textiles paracas." Master's thesis, Universidad Nacional Mayor de San Marcos, 2020. https://hdl.handle.net/20.500.12672/15401.

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Estudia la estructura compositiva y la distribución del color en los mantos Paracas Necrópolis. He realizado diversas visitas desde el primer semestre del año 2015 a la colección Paracas del Museo Nacional de Arqueología, Antropología e Historia del Perú de Pueblo Libre (MNAAHP); a la sala especial adaptada para el manto blanco en el Museo de Arqueología y Antropología de la UNMSM durante el año 2017; y a la sala Paracas de la colección permanente del MALI, en ese mismo periodo. La exhibición Nasca del MALI, también fue materia de mi estudio con un manto seleccionado para este trabajo (agosto-octubre 2017). De los cinco mantos evaluados, y habiendo registrado mediante fotografías todas estas colecciones, he tomado mayor interés por los mantos Paracas Necrópolis, por tratarse de composiciones visuales que muestran mucha riqueza de color y de movimiento, tanto en la estructura como en el ritmo de los elementos sobre el soporte de la tela. Los personajes antropomorfos también presentan una configuración orgánica más naturalista que el periodo Cavernas, y esto embellece el acabado final de las piezas tejidas. Investigadoras de los mantos Paracas, como Anne Paul han clasificado, grosso modo, estos tejidos como mantos “lineales”, los ligados al periodo Cavernas y mantos “bloque de color”, los utilizados en el periodo Necrópolis. La motivación del presente estudio lo tengo desde niño, los mantos Paracas siempre me llamaron la atención por su riqueza cromática; la complejidad de la distribución de los elementos repetitivos y el misterio de los personajes representados.
Tesis
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Morillas, Gómez Samuel. "Fuzzy metrics and fuzzy logic for colour image filtering." Doctoral thesis, Universitat Politècnica de València, 2008. http://hdl.handle.net/10251/1879.

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El filtrado de imagen es una tarea fundamental para la mayoría de los sistemas de visión por computador cuando las imágenes se usan para análisis automático o, incluso, para inspección humana. De hecho, la presencia de ruido en una imagen puede ser un grave impedimento para las sucesivas tareas de procesamiento de imagen como, por ejemplo, la detección de bordes o el reconocimiento de patrones u objetos y, por lo tanto, el ruido debe ser reducido. En los últimos años el interés por utilizar imágenes en color se ha visto incrementado de forma significativa en una gran variedad de aplicaciones. Es por esto que el filtrado de imagen en color se ha convertido en un área de investigación interesante. Se ha observado ampliamente que las imágenes en color deben ser procesadas teniendo en cuenta la correlación existente entre los distintos canales de color de la imagen. En este sentido, la solución probablemente más conocida y estudiada es el enfoque vectorial. Las primeras soluciones de filtrado vectorial, como por ejemplo el filtro de mediana vectorial (VMF) o el filtro direccional vectorial (VDF), se basan en la teoría de la estadística robusta y, en consecuencia, son capaces de realizar un filtrado robusto. Desafortunadamente, estas técnicas no se adaptan a las características locales de la imagen, lo que implica que usualmente los bordes y detalles de las imágenes se emborronan y pierden calidad. A fin de solventar este problema, varios filtros vectoriales adaptativos se han propuesto recientemente. En la presente Tesis doctoral se han llevado a cabo dos tareas principales: (i) el estudio de la aplicabilidad de métricas difusas en tareas de procesamiento de imagen y (ii) el diseño de nuevos filtros para imagen en color que sacan provecho de las propiedades de las métricas difusas y la lógica difusa. Los resultados experimentales presentados en esta Tesis muestran que las métricas difusas y la lógica difusa son herramientas útiles para diseñar técnicas de filtrado,
Morillas Gómez, S. (2007). Fuzzy metrics and fuzzy logic for colour image filtering [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/1879
Palancia
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Sandhu, Sumit. "Characterization of loss of HLTF function in the development of colon cancer." Molecular Cancer, 2012. http://hdl.handle.net/1993/8587.

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Helicase-like Transcription Factor (HLTF) is a DNA helicase protein which is homologous to SNF/SWI family. It has been demonstrated to be a functional homolog of yeast Rad5, required for the maintenance of genomic stability. Although the physiologic role of HLTF is largely unknown,inactivation of HLTF by promoter hypermethylation has been found in more than 40% human colon cancers. In this study, we have applied mouse transgenic approaches to determine whether loss of HLTF function could be important for colorectal carcinogenesis. HLTF knockout mice were generated by the deletion of first 5 exons of the HLTF gene. The complete loss of HLTF expression in HLTF -/- mice was confirmed by northern blot and real time RT-PCR assays. HLTF -/- mice did not show any developmental defects within a 2-year observation indicating that HLTF is dispensable for mouse development. Furthermore, HLTF -/- mice were free of intestinal or colorectal tumors or other types of tumors, suggesting that loss of HLTF function alone is not sufficient to drive oncogenic transformation in intestinal track and other tissues. To determine whether loss of HLTF function could cooperate with other tumor suppressors in the formation of colorectal cancers, we have bred HLTF knockout mice with the mutant mice for APC (adenomtous polyposis coli) and P53. In HLTF -/-APC Min/+ mice, a significantly increased formation of intestinal adenocarcinoma and colorectal cancers were observed. Although very few HLTF -/-P53 -/- mice developed colorectal cancers, these mice had increased incidence of the formation of metastatic lymphomas. Cytogenetic analysis of colorectal cancer cells derived from HLTF -/-APC Min/+ mice demonstrated a high incidence of gross chromosomal instabilities, including Robertsonian fusions, fragments and aneuploidy. All these genetic alterations were not observed in the intestinal tumor cells from APC Min/+, implicating that loss of HLTF function could induce genomic instability which contributes to intestinal carcinogenesis. To further investigate the role of HLTF in colorectal carcinogenesis, we have also applied a shRNA knockdown approach to down-regulate HLTF expression in human HCT-116 colon cancer cells. HCT-116 cells highly express HLTF and show less chromosomal instability, making these cells as a very useful model to investigate the loss of function of HLTF in human colorectal carcinogenesis. Using Western blot approach, we confirmed that HLTF knockdown HCT-116 cells had less than 5% of HLTF expression as compared to the scramble controls. By inoculating HLTF knockdown HCT-116 cells to Rag1 -/-IL2 -/- immunocompromised mice, we further demonstrated that HLTF knockdown promote tumor growth and invasion. Moreover, spectral karyotyping analysis revealed that HLTF knockdown human colon cancer cells had significantly increased chromosomal instability, including both aneuploidy and chromosomal translocation. Taken together, our work strongly indicates that loss of HLTF function can promote the malignant transformation of intestinal or colonic adenomas to carcinomas by inducing genomic instability. Given the high frequency of epigenetic inactivation by hypermethylation of HLTF in human colon cancers, our studies strongly suggest that this epigenetic alteration could be directly involved in the development of colorectal cancer rather than a consequence of this carcinogenesis.
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Poirier, Maruenda Zoe. "Una revisión crítica de las teorías lingüísticas sobre la categorización de los sistemas de colores." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2020. http://hdl.handle.net/20.500.12404/18496.

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Este trabajo es una revisión crítica de 3 teorías lingüísticas sobre la categorización de los sistemas de colores en las lenguas del mundo. Los estudios examinados en este trabajo tratan de resolver la duda sobre por qué los hablantes de una lengua determinada segmentan el espectro visual con diferentes términos cromáticos. En primer lugar, se revisa el estudio de Berlin & Kay, Basic Color Terms (1969), donde se propone una serie de universales semánticos, además de añadir ciertas categorías para identificar los términos que expresan colores y un modelo evolutivo que corresponde a la cantidad de términos que tiene la lengua estudiada. En segundo lugar, se revisan las ideas principales de la teoría neurofisiológica (Kay & McDaniel 1978) y, por último, se examinan las ideas de Anna Wierzbicka (2005), quien propone una nueva forma para hablar sobre colores dentro del marco de la teoría de Metalenguaje Semántico Natural propuesta por ella (Wierzbicka 1972; Goddard 2006).
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Perales, Romero Esther. "Sobre los colores óptimos y sus aplicaciones en visión y tecnología del color." Doctoral thesis, Universidad de Alicante, 2009. http://hdl.handle.net/10045/13878.

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Books on the topic "Colour loss"

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Lesage, Marion. Vitiligo: Understanding the loss of skin colour. London: Vitiligo Society, 2002.

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Society, Vitiligo, ed. Vitiligo: Understanding the loss of skin colour. London: Vitiligo Society, 1997.

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Lochhead, Liz. The colour of black & white. Edinburgh: Polygon, 2003.

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Madison, Susan. The colour of hope. London: BCA, 2000.

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Morrall, Clare. Astonishing splashes of colour. New York: HarperCollins, 2004.

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Astonishing splashes of colour. [S.l.]: Isis, 2004.

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Astonishing splashes of colour. Toronto, Ont: McClelland & Stewart, 2003.

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Morrall, Clare. Astonishing splashes of colour. New York: HarperCollins, 2005.

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Astonishing splashes of colour. Birmingham: Tindal Street Press, 2003.

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Lost London in colour. Hersham: Ian Allan, 2008.

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Book chapters on the topic "Colour loss"

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Vaegan, A., A. Banks, A. Gathy, S. Hamer, S. Phonesouk, S. Perry, and M. Capon. "The relationship between colour vision loss, contrast sensitivity loss and aging." In Colour Vision Deficiencies XI, 195–211. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1856-9_21.

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Haegerstrom-Portnoy, Gunilla, Susan E. Hewlett, and Sherrie A. N. Barr. "S Cone Loss with Aging." In Colour Vision Deficiencies IX, 345–52. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2695-0_40.

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Lamb, Jonathan. "Understanding the loss of colour." In The Aesthetics of the Undersea, 54–66. Abingdon, Oxon ; New York, NY : Routledge, 2019. | Series: Routledge environmental humanities: Routledge, 2018. http://dx.doi.org/10.4324/9780429444203-5.

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Drum, Bruce, Mansour F. Armaly, and William E. Huppert. "Sources of Short-Wavelength Sensitivity Loss in Glaucoma." In Colour Vision Deficiencies VIII, 413–22. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4275-2_60.

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Gonella, Alejandro, and Maria L. F. De Mattiello. "Contrast Sensitivity in Glaucoma: Its Relation to the Loss of Luminosity." In Colour Vision Deficiencies VIII, 423–27. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4275-2_61.

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Drum, Bruce, and Charles E. Sternheim. "Loss of chromatic response to monochromatic increments on intense achromatic pedestal backgrounds." In Colour Vision Deficiencies XI, 383–96. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1856-9_39.

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Scase, Mark O., David H. Foster, William P. Honan, and James R. Heron. "A case of unilateral blue colour vision loss." In Documenta Ophthalmologica Proceedings Series, 441–50. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3774-4_52.

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Greenstein, Vivienne C., Donald C. Hood, and Ronald E. Carr. "A Comparison of S Cone Pathway Sensitivity Loss in Patients with Diabetes and Retinitis Pigmentosa." In Colour Vision Deficiencies IX, 233–41. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2695-0_28.

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Lakowski, R., J. G. Airaksinen, S. M. Drance, and Y. Yamazaki. "Chromatic Functional Loss and its Relation to the Morphology of the Retina in the Glaucomatous Eye." In Colour Vision Deficiencies IX, 289–99. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2695-0_34.

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Kalloniatis, M., and R. S. Harwerth. "Differential Adaptation of Cone Mechanisms Explains the Preferential Loss of Short-Wavelength Cone Sensitivity in Retinal Disease." In Colour Vision Deficiencies IX, 353–64. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2695-0_41.

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Conference papers on the topic "Colour loss"

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Sargison, J. E., S. M. Guo, M. L. G. Oldfield, G. D. Lock, and A. J. Rawlinson. "A Converging Slot-Hole Film-Cooling Geometry: Part 1 — Low-Speed Flat-Plate Heat Transfer and Loss." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0126.

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This paper presents experimental measurements of the performance of a new film cooling hole geometry - the Converging Slot-Hole or Console. This novel, patented geometry has been designed to improve the heat transfer and aerodynamic loss performance of turbine vane and rotor blade cooling systems. The physical principles embodied in the new hole design are described, and a typical example of the console geometry is presented. The cooling performance of a single row of consoles was compared experimentally with that of typical 35° cylindrical and fan-shaped holes and a slot, on a large-scale, flat-plate model at engine representative Reynolds numbers in a low speed tunnel with ambient temperature main flow. The hole throat area per unit width is matched for all four hole geometries. By independently varying the temperature of the heated coolant and the heat flux from an electrically heated, thermally insulated, constant heat flux surface, both the heat transfer coefficient and the adiabatic cooling effectiveness were deduced from digital photographs of the colour play of narrow-band thermochromic liquid crystals on the model surface. A comparative measurement of the aerodynamic losses associated with each of the four film-cooling geometries was made by traversing the boundary layer at the downstream end of the flat plate. The promising heat transfer and aerodynamic performance of the console geometry have justified further experiments on an engine representative nozzle guide vane in a transonic annular cascade presented in Part 2 of this paper [1].
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Serra, Juan, Jorge Llopis, Ana Torres, and Manuel Giménez. "Criterios de combinación de colores para la arquitectura en Salubra I: estudio de tonos." In LC2015 - Le Corbusier, 50 years later. Valencia: Universitat Politècnica València, 2015. http://dx.doi.org/10.4995/lc2015.2015.570.

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Resumen: Realizamos un nuevo estudio de las combinaciones de colores seleccionados por Le Corbusier en los ‘claviers’ para la empresa de papeles pintados Salubra en 1931, mediante su análisis en el espacio de color Natural Color System NCS, que permite comprender las variables perceptivas de los colores (tono, negrura y cromaticidad) y sus criterios de armonía. En este artículo discutimos las gamas tonales seleccionadas y aquellas que están ausentes., e intentamos desentrañar el orden subyacente en las combinaciones de colores mediante el estudio de las similitudes y contrastes de sus tonalidades en NCS. De manera gráfica, se demuestran algunos principios de armonía como el recurso habitual de contrastar tonos fríos con cálidos, algo que difiere ligeramente del tradicional contraste de complementariedad. El trabajo completo ha sido publicado en Color Research and Application © Wiley Periodicals. Color combination criteria in Le Corbusier's Purist architecture based on Salubra claviers from 1931. DOI: 10.1002/col.21940. Abstract: We have carried out a new study of the color combinations selected by Le Corbusier in the ‘claviers’ for the Salubra wallpaper company in 1931, by analyzing them in the Natural Color System NCS, which allows us to understand the perceptive variables of colors (hue, blackness and chromaticness) as well as their combination criteria. In this paper, the selected hue ranges are discussed, and those absent ones. We aim to find out the underlying order in the color combinations by studying the similarities and contrasts of their hues in NCS. We demonstrate graphically some principles in Le Corbusier’s color preferences, such as the usual resource of contrasting cool with warm colors, something slightly different to the traditional contrast of complementary colors. The complete work has been published in Color Research and Application © Wiley Periodicals. Color combination criteria in Le Corbusier's Purist architecture based on Salubra claviers from 1931. DOI: 10.1002/col.21940. Palabras clave: color, armonía; Le Corbusier; Salubra; arquitectura; Natural Color System. Keywords: color; harmony; Le Corbusier; Salubra; architecture; Natural Color System. DOI: http://dx.doi.org/10.4995/LC2015.2015.570
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Xu, Pengfei, Qiguang Miao, Tiange Liu, Xiaojiang Chen, and Dingyi Fang. "Line separation from topographic maps using regional color and spatial information." In Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}. California: International Joint Conferences on Artificial Intelligence Organization, 2018. http://dx.doi.org/10.24963/ijcai.2018/501.

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The lines in topographic maps are difficult to be separated from each other because of their confusing colors. To solve this problem, we propose a novel line separation method using their regional color and spatial information. Firstly, we divide the lines into lots of circular regions with a certain diameter, and consider these regions as the basic processing units. Then based on a new concept of regional color confusion, we classify all the divided circular regions into two kinds of regions by whether the color is pure or mixed. Further, for pure color regions, a fuzzy clustering algorithm with Gaussian kernel can be used to cluster them into different lines based on their color information. Meanwhile, we determine the memberships of the mixed color regions according to their spatial relations with the clustered pure color regions. The concept of regional color confusion is proposed to reduce the influences of the confusing colors to line separation, and the spatial relations are utilized to solve the problems of the membership determination of the mixed color regions. The experimental results demonstrate that our method can achieve higher accuracy compare with other two state-of-the-art methods, which provides a novel idea for line element segmentation from scanned topographic maps.
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Phillips, Peter L. "Minimum Colour Differences Required To Recognise Small Objects On A Colour CRT." In 1985 Los Angeles Technical Symposium, edited by Elliott Schlam. SPIE, 1985. http://dx.doi.org/10.1117/12.946373.

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Calatayud Chover, María Angeles. "CARACTERIZACIÓN AGRONÓMICA-MORFOLÓGICA DE 6 ENTRADAS DE “TOMACA TIPO MASCLET” DE LA COLECCIÓN DE VARIEDADES TRADICIONALES DEL IVIA." In I CONGRÉS DE LA TOMACA VALENCIANA: LA TOMACA VALENCIANA DEL PERELLÓ. Valencia: Universitat Politècnica de València, 2017. http://dx.doi.org/10.4995/tomaval2017.2017.6320.

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En el presente trabajo se muestran las características morfológicas y de interés agronómico del fruto, correspondientes a 6 entradas de tomate valenciano perteneciente a la colección de variedades tradicionales del IVIA. Las 6 entradas son: IVIA-2 (origen Moncada); IVIA-27 (origen Siete Aguas); IVIA-28 (origen Paiporta); IVIA-69 (origen Moncada); IVIA-72 (origen Moncada); IVIA-126 (origen El Perelló). Respecto a la arquitectura de la planta, las 6 entradas son similares. La diferencia más importante entre ellas es debido a la morfología del fruto; tanto en su sección longitudinal, número de lóculos y el peso medio de los frutos. Las entradas con el extremo distal del fruto con forma puntiaguda, característica muy apreciada por los consumidores, son las IVIA-27 e IVIA-69. Por otro lado, IVIA-28, presenta el mayor peso medio de los frutos con un valor de 262g con una gran calidad, aunque la forma del fruto es menos puntiaguda que ninguno de los otros. Las 6 entradas presentan un gran potencial agronómico dado que presentan un tamaño, forma y color de fruto atrayentes dentro de los cánones de la denominación del tomate valenciano. The 6 accessions showed a great agronomic potential due of fruits size, shape and colour attractive inside Valencian tomato fruits model.
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Smith, Steven L. "Application Of The Tri-Color Theory Of Additive Color Mixing To The Full Color Reflection Hologram." In 1985 Los Angeles Technical Symposium, edited by Lloyd Huff. SPIE, 1985. http://dx.doi.org/10.1117/12.946265.

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Shivamurthy, R. C., and M. K. Surappa. "Characteristics of Tribolayers Observed in A356 Al Alloy — SiCP Composite Discs/Brake Pad During Sliding Wear Tests." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64040.

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Tribological characteristics of A356 Al alloy-10 vol. % SiCP composite discs/brake pad has been studied under dry sliding conditions at sliding speeds in the range 2 to 5 m/s and at loads in the range 1–3 MPa. In these tests, disc of Al MMCs and pin of friction pad made of polymer based composite were used. Wear rates of Al MMC disc as calculated by weight loss method, found to be negative at high sliding speed and high load. Worn surface of disc has been analyzed using EDAX. SEM analyses of worn surfaces of composite disc infer transfer of material from pin to the disc resulting in the formation of tribolayers. Two types of tribolayers were observed on the worn surface, one having shiny appearance of copper rich layer and other is dark in colour consisting of Mg, S, Fe, Ba, Ca, Si, Cu, In and Al. In the later layers were rich in copper and appear as bright patchy layers under SEM. Coverage of copper rich layers increase all along and across the worn track at a sliding speed of 4 and 5 m/s in the load range 2 to 3 MPa. Atomic percent of copper increase with load and consequently affect the wear rate of disc. EDAX analysis of dark tribo layers on wear track of composite disc show continuous increase in the amount of Cu and Ba with increase in speed and load. Hence, wear rate of composite discs were relatively low under all test conditions. These results clearly indicate composition of friction material having profound influence on the wear rate of Al MMC discs.
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Jiang, Yifei, Yifu Li, Dongsong Ban, and Yuanchao Xu. "Frame Buffer Compression without Color Information Loss." In 2012 IEEE 12th International Conference on Computer and Information Technology (CIT). IEEE, 2012. http://dx.doi.org/10.1109/cit.2012.29.

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Kim, Youngeun, Taekyung Kim, Seunghyeon Kim, and Changick Kim. "Weakly Supervised Semantic Segmentation Using Color Adjacency Loss." In 2018 IEEE Visual Communications and Image Processing (VCIP). IEEE, 2018. http://dx.doi.org/10.1109/vcip.2018.8698643.

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Pekelsky, J. R., W. B. Cowan, and N. L. Rowell. "Real-Time Measurement Systems For Colour CRT Characterization." In 1988 Los Angeles Symposium--O-E/LASE '88, edited by Gary W. Hughes, Patrick E. Mantey, and Bernice E. Rogowitz. SPIE, 1988. http://dx.doi.org/10.1117/12.944724.

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Reports on the topic "Colour loss"

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Lazonick, William, Philip Moss, and Joshua Weitz. The Unmaking of the Black Blue-Collar Middle Class. Institute for New Economic Thinking Working Paper Series, May 2021. http://dx.doi.org/10.36687/inetwp159.

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In the decade after the Civil Rights Act of 1964, African Americans made historic gains in accessing employment opportunities in racially integrated workplaces in U.S. business firms and government agencies. In the previous working papers in this series, we have shown that in the 1960s and 1970s, Blacks without college degrees were gaining access to the American middle class by moving into well-paid unionized jobs in capital-intensive mass production industries. At that time, major U.S. companies paid these blue-collar workers middle-class wages, offered stable employment, and provided employees with health and retirement benefits. Of particular importance to Blacks was the opening up to them of unionized semiskilled operative and skilled craft jobs, for which in a number of industries, and particularly those in the automobile and electronic manufacturing sectors, there was strong demand. In addition, by the end of the 1970s, buoyed by affirmative action and the growth of public-service employment, Blacks were experiencing upward mobility through employment in government agencies at local, state, and federal levels as well as in civil-society organizations, largely funded by government, to operate social and community development programs aimed at urban areas where Blacks lived. By the end of the 1970s, there was an emergent blue-collar Black middle class in the United States. Most of these workers had no more than high-school educations but had sufficient earnings and benefits to provide their families with economic security, including realistic expectations that their children would have the opportunity to move up the economic ladder to join the ranks of the college-educated white-collar middle class. That is what had happened for whites in the post-World War II decades, and given the momentum provided by the dominant position of the United States in global manufacturing and the nation’s equal employment opportunity legislation, there was every reason to believe that Blacks would experience intergenerational upward mobility along a similar education-and-employment career path. That did not happen. Overall, the 1980s and 1990s were decades of economic growth in the United States. For the emerging blue-collar Black middle class, however, the experience was of job loss, economic insecurity, and downward mobility. As the twentieth century ended and the twenty-first century began, moreover, it became apparent that this downward spiral was not confined to Blacks. Whites with only high-school educations also saw their blue-collar employment opportunities disappear, accompanied by lower wages, fewer benefits, and less security for those who continued to find employment in these jobs. The distress experienced by white Americans with the decline of the blue-collar middle class follows the downward trajectory that has adversely affected the socioeconomic positions of the much more vulnerable blue-collar Black middle class from the early 1980s. In this paper, we document when, how, and why the unmaking of the blue-collar Black middle class occurred and intergenerational upward mobility of Blacks to the college-educated middle class was stifled. We focus on blue-collar layoffs and manufacturing-plant closings in an important sector for Black employment, the automobile industry from the early 1980s. We then document the adverse impact on Blacks that has occurred in government-sector employment in a financialized economy in which the dominant ideology is that concentration of income among the richest households promotes productive investment, with government spending only impeding that objective. Reduction of taxes primarily on the wealthy and the corporate sector, the ascendancy of political and economic beliefs that celebrate the efficiency and dynamism of “free market” business enterprise, and the denigration of the idea that government can solve social problems all combined to shrink government budgets, diminish regulatory enforcement, and scuttle initiatives that previously provided greater opportunity for African Americans in the government and civil-society sectors.
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Herrera-Muñoz, Stella María. Elaboración de provisionales de autocurado para prótesis parcial fija o coronas individuales. Ediciones Universidad Cooperativa de Colombia, December 2020. http://dx.doi.org/10.16925/gcgp.29.

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Con esta guía para la elaboración de provisionales de autocurado para prótesis parcial fija o coronas individuales se espera tener una ruta clara para las prácticas de preclínica de los alumnos en modelos tipo Odonto, los cuales simulan las arcadas dentales de pacientes edéntulos parciales. La provisional es un dispositivo temporal que brinda a la estructura protección para la pulpa, restaura la función, la estabilidad y da la estética requerida por el paciente, ya que sirve para proyectar el tratamiento definitivo. Para la elaboración de la provisional de autocurado se debe considerar la morfología dental, la selección del color del material restaurador, la preparación del diente pilar (evaluando en esta la definición de la línea terminal), la vía de inserción, el espacio interoclusal e interproximal, los cuales son componentes de los principios de tallado. El material de elección para elaborar provisionales es la resina acrílica, que está compuesta por monómero y polímero, material que cuenta con apropiadas características de estabilidad, y con un fácil y rápido manejo, lo cual ayuda al operador a obtener excelentes resultados. Las técnicas que se manejan para la realización de dicho procedimiento son: cáscara de huevo y en bloque; la diferencia entre estas dos es la utilización del encerado diagnóstico y la elaboración de una matriz en silicona. Con esta guía se busca que los estudiantes adquieran conocimientos, habilidades y destrezas para la atención de sus pacientes.
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SGC, Servicio Geológico Colombiano. Boletín Geológico Volumen 34. No 1. ISSN-0120-1425. Geología, Mineralogía y Química del complejo Ultramafico Zonado del Alto Condoto (Cuzac). Metodología para la cartografía de Zonas de Susceptibilidad a los Deslizamientos a partir de Sensores Remotos y S.I.G. Beneficio de Roca Fosfórica en los Municipios de Nuevo Colon, Turmequé y ventaquemada (Boyacá). Boletín. Bogotá: Servicio Geológico Colombiano, December 1994. http://dx.doi.org/10.32685/10.143.1994.718.

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