color

Internal discoloration may occur with the intraoral use of resin-based restoration materials. Water storage and light exposure influence the color properties of microfilled and hybrid composites.

..The purpose of this paper was to give a reproducible clinical method to the practitioner in order to achieve a reliable dental colorimetric analysis...

The empirical evidence that human color categorization exhibits some universal patterns beyond superficial discrepancies across different cultures is a major breakthrough in cognitive science...

..n = 9) underwent positron emission tomographic measurement of cerebral blood flow during exposure to control, color Stroop, and emotional Stroop conditions...

..OBJECTIVE: To develop a flexible method of separation and quantification of immunohistochemical staining by means of color image analysis...

..Finally, a comparison of transcript levels for 21 genes across seven samples measured by the nCounter system and SYBR Green real-time PCR demonstrated similar patterns of gene expression at all transcript levels...

..PURPOSE: This study examined the effect of varying core and veneer thickness on the color parameters of layered disk specimens made of 2 ceramic systems...

..Here, I report increased adaptive divergence in cryptic color pattern between a pair of Timema insect populations following an experimental reduction in between-population gene ..

..The 'color-coded' tumor-host models enable imaging and therefore a deeper understanding of the host cells involved and their ..

..In this respect, melanocytes found in the valves and septa of the heart are probably not essential in a healthy and non-stressful environment...

The genetic relationship among the three color variants (Red, Green, and Black) of the Japanese sea cucumber, S. japonicus, was investigated using 11 microsatellite markers...

The nature of color categories in the world's languages is contested...

..presented for the production, quality assessment, and reproducible application of antibody microarrays in a two-color mode with an array of 1,800 features, representing 810 antibodies that were directed at 741 cancer-related ..

..The Caribbean hamlets (genus Hypoplectrus) are a flock of reef fish morphospecies with highly distinct color pattern that mate like with like, but show little mitochondrial or microsatellite DNA differentiation...

b>Color variation within populations of the pea aphid influences relative susceptibility to predators and parasites...

..Lower tyrosinase activity leads to a shift toward a more pheomelanistic (reddish) plumage color, which is the characteristic feature of the DB phenotype.

..32 and 1.31 mM TEAC/100 g. Different fruit color was reflected by the surface color and pigment extract color...

..The spatial-frequency tuning was lowpass and the temporal-frequency tuning was multimodal, with peaks at 0 and 4 Hz. The results demonstrate the use of MEG as a technique for investigating activity from discrete regions of cortex...

..In this study, inheritance data are presented for the trait seed testa color segregating in large populations (more than 200 individuals) derived from closely related mungbean (Vigna radiata ..

..In this article, we show how to apply the 'color coding' technique for counting non-induced occurrences of subgraph topologies in the form of trees and bounded ..

Correct shade selection and clinical procedures may be invalidated as a result of intrinsic color shifting with time...

..The evolution of pierid wing coloration is discussed...

..to determine the effect of structural variation on a number of chemical and physical properties: CIELAB color coordinates, visual detection thresholds, hydration constants (pK(H)), and in vitro antioxidant activities (ORAC)...

The total quantifiable color difference between shade matching and shade duplication has not been investigated formally.

..This study assessed the changes in color and surface roughness of three indirect composite resins after accelerated aging...

The purpose of this study was to evaluate, in vitro, the color stability of three composite resins of two different shades (A3 and C3) cured with either a quartz tungsten halogen (QTH) or a light emitting diode (LED) source...

..Here, we measured functional MRI signals corresponding to "neon color spreading": an illusory transparent surface with long-range color filling-in, one of the important mediums in ..

..processing? Using aftereffects induced by quickly alternating images, we show that cortical mechanisms track color much faster than perception, responding well to color alternations that are too rapid to be perceptible...

..These results support the idea that STAS domains may have a general NTP binding role and open a way to investigate the molecular functionality of YtvA-STAS...

This study evaluated the color changes and amount of remaining C = C bonds (%RDB) in three dental composites after hydrothermal- and photoaging.

The color of eggshells from eggs laid by commercial-type Hy-Line brown hens 25 wk of age was studied over a period of 10 mo...

This study determined the differences in values and changes of color and translucency of eight brands of A2 shade resin composites after curing, polishing and thermocycling (TC)...

This study determined color changes in a composite cured with various types of curing units after two years...

..tissue penetration and reduced phototoxicity; however, in TPLSM the excitation and emission spectra of GFP and its color variants [e.g...

..Petrolistes galathinus has been traditionally viewed as a highly variable species containing several different color forms, we consider it to be a complex of at least 6 morphologically similar species with similar ecological ..

Effects of background color on gonadotropin-releasing hormone (GnRH) and melanin-concentrating hormone (MCH) levels in the brain of the barfin flounder Verasper moseri were monitored to investigate the interaction of GnRH and MCH in the ..

The aim of this study was to evaluate color compatibility of corresponding resin composite shades keyed to Vitapan Classical shade guide (Vita).

..between left and right PCA with eyes opened and closed, but MBFV were significantly higher in right PCA for each color than corresponding MBFV in left PCA...

We analyzed the World Color Survey (WCS) color-naming data set by using k-means cluster and concordance analyses...

To determine the degree to which mailed survey response rates, response times, and nonresponse bias are affected by questionnaire size and color.

..In addition, given that sea cucumber color affects market price, with the rare, possibly reproductively isolated, red type being the most valuable, an ..

..have been advocated for superior esthetics, and various materials have been used to improve ceramic core strength, but there is a lack of information on how color is affected by different core substructures and fabrication procedures.

..Here, we studied a color polymorphic population of the Lake Victoria cichlid fish Neochromis omnicaeruleus, a species in which color morphs ..

..Third, rod input to SBCs may be the substrate for behavioral biases toward perception of blue at mesopic light levels...

..largely because of the laborious task to segment foreground object pixels from background, especially in complex color micrographs of environmental samples...

We report the implementation of a color-capable on-chip lensless microscope system, termed color optofluidic microscope (color OFM), and demonstrate imaging of double stained Caenorhabditis elegans with lacZ gene expression at a light ..

..and automated SNPs genotyping method based on gold coated magnetic nanoparticles (GMNPs) array and dual-color single base extension has been designed...

..targets of equal brightness for brief presentations in eight locations of the near periphery and reported the color that was first dominant in each location...

..1), MLL/ELL; and t(11;19)(q23;p13.3), MLL/MLLT1. We have designed dual-color, double-fusion fluorescence in situ hybridization (D-FISH) probe sets to identify these translocations...

b>Color has become a premier model system for understanding how information is processed by neural circuits, and for investigating the relationships among genes, neural circuits, and perception...

..The test is based on the use of chromogenic proteins as color markers and the use of single and multiple mutants of Escherichia coli that have greatly increased sensitivity to ..

..We have overcome this challenge by introducing dual-color z-scan FFS and the addition of a distinctly colored reference protein...

..186, p. 435-42). Here we discuss further possible effects of mini-white and evidence for autophagy as a mediator of white enhancement of tau toxicity...

Standardization and validation of the color displayed by digital slides is an important aspect of digital pathology implementation...

This study compared the color changes of five novel resin composites polished with two one-step polishing systems when exposed to coffee solution.

The human visual system is able to perceive colors as approximately constant. This ability is known as color constancy. In contrast, the colors measured by a sensor vary with the type of illuminant used...

Whether motion vision uses color contrast is a controversial issue that has been investigated in several species, from insects to humans...

..The segregation pattern fits a 15:1 (chi2(15:1) = 0.32, P > 0.5) ratio, suggesting that the lemon ray flower color is conditioned by 2 independent recessive genes that had been contributed individually by each of the parents...

..These results demonstrate that differential expression of OgMYB1 is critical to determine the color pattern of floral organ in Oncidium Gower Ramsey.

This study investigated the effects of two different light curing units and two staining solutions on the color stability of a hybrid composite and a nanohybrid composite after different immersion periods...

Investigating the interactions between universal and culturally specific influences on color categorization across individuals and cultures has proven to be a challenge for human color categorization and naming research...

..of this study was to investigate the effect of cerium and bismuth coloring salts solutions on the microstructure, color, flexural strength, and aging resistance of tetragonal zirconia for dental applications (3Y-TZP)...

The aim of this study was to evaluate polymerization-dependent changes in the color and translucency parameter (TP) of resin composites and to compare results obtained using two color-difference metric formulae, CIELAB and CIEDE 2000...

..The ability of a dentist to select and communicate an acceptable shade match to a dental laboratory may be the most important factor in esthetic restorative dentistry...

..Data were recorded according to the CIEL*a*b* system and the color difference (DE) was calculated.

..To review current knowledge with respect to tooth colour and its measurement...

Several different methods are used to measure tooth color in bleaching studies...

To evaluate the color differences of four tooth-colored restorative materials of the same designated Vita shade, and the color changes of the materials caused by light curing.

To investigate the color stability of resin-based restorative materials when polymerized with light-emitting diode (LED) curing light in the constant or exponential mode.

..To determine the degree of surface staining of resin-based composites (RBCs) and glass-ionomer cements (GICs) after immersion in various stains and food-simulating solutions (FSS)...

..It may be concluded that the bleaching of composites, ormocers and compomers depends on (i) the used light curing device and (ii) the chosen curing times. The tungsten halogen light provided highly significantly superior results...

..shades A1 and A2 and a glass ionomer, GC Fuji IX GP Fast (GC Corporation, Tokyo, Japan), shade A2, to evaluate color stability. Specimens (12.6-mm dia x 2...

..The influence of various polymerization techniques on color changes was also evaluated...

..The purpose of the present study was to investigate the influence of various finishing systems on the surface roughness and staining of three packable resin composites and a conventional microhybrid one...

Given the complexity of tooth color, the variations of shade within each tooth, and translucency, it is difficult to view only one small area and select a shade match for restorations.

OBJECTIVE: This study evaluated color and translucency changes caused by light curing resin composite materials...

..The purpose of this study, therefore, was to evaluate the color change of this tooth coating material and two resin composites after immersion in food-simulating, staining ..

Surface characteristics may affect the color change and surface roughness of composite resins.

The purpose of this in vitro study was to evaluate the color stability of restorative materials when exposed to a cola beverage.

..Long-term shade stability is critical for esthetics. PURPOSE: This study compared changes in CIE L*a*b* color coordinates of simulated veneers made from aluminum oxide core material veneered with feldspathic porcelain after ..

The purpose of this study was to evaluate the color stability of 3 types of fluoride-releasing restorative esthetic materials when exposed to pH variations: (1) a polyacid-modified resin composite; (2) a resin-modified glass ionomer ..

The color of aqueous solutions obtained by heating carrot (Daucus carota L.) roots in water ("stocks") is different when the thermal treatment is applied with or without exposure to light...

..CR) and three TP values relative to the illuminants, and to measure the correlation between the differences in TP (DeltaTP) and color (DeltaE(ab)*) by the illuminants based on dental porcelain and porcelain repairing resin composites.

Optical scattering has been studied because of its important effects on the color and translucency of a material...

..The teeth were backlit with an incandescent lamp at the color temperature of A illuminant and shielded to avoid spurious light entering the spectrophotometer...

The objective of this study was to evaluate the changes in color and color coordinates after accelerated aging of resin composites depending on the measuring modes of reflectance and transmittance.

This study examined the use of color measurement to determine tooth color in a study of bleaching with peroxide and light used separately and in combination...

To measure the color changes of indirect resin composites during curing cycle and to determine the influence of shade group on these changes.

..0, 2.0, 3.0 and 4.0 mm) and of three different shades (enamel-shade, body-shade, and opaque-shade). As for the color of each shade, it was evaluated using 4mm thick specimens on the white backing...

The objectives were to evaluate the metameric color and hue angle (degrees) changes between dental porcelain and porcelain repairing resin composites.

..2) Determination of color differences between non-fiber-reinforced composites and fiber-reinforced composites...

The purpose of this study was to determine the metameric color differences between resin composites and dentin.

This study sought to assess the significance of the corrections introduced in the new CIEDE2000 color difference formula with respect to deltaE*ab...

To measure the translucency parameter of opaque-shade resin composites. The secondary purpose was to evaluate the ability of the materials to mask dark background color.

..This study evaluated the amount of residual yellow in cured resin composites when polymerizing with either a quartz-tungsten-halogen (QTH) or blue light-emitting diode (LED)...

..Although no significant difference (p>0.05) was observed between the curing methods, adhesive performance was poor, with a 35% loss of restorations overall...

DED. Vision is useful because it informs us about physical properties of the environment. In the case of color, one important function is to provide information about object identity - color is generally considered a perceptual ..

..An exemplar model of discrimination and attention attempts to predict key results of these experiments and integrate them with other discrimination data. ..

..The project will provide rules for classifying natural textures as effective or ineffective at conveying shape which will be useful in computer simulations of realistic scenes. ..

Possibly the most important functions of color vision are the identification of objects and materials across illuminants and of illuminants across sets of objects...

..The work stresses the collection of quantitative data suitable for mathematical modeling; an exemplar model of discrimination and memory is used to predict key results. ..

Possibly the most important functions of color vision are the identification of objects and materials across illuminants, and of illuminants across sets of objects...

..These results will be useful both in understanding the causes of neurological deficits in shape perception, and in building artificial visual aids for patients with such deficits. ..

DESCRIPTION: This proposal aims to elucidate the functioning of neural mechanisms in four domains of complex color and brightness perception...

..These results will be useful both in understanding the causes of neurological deficits in shape perception, and in building artificial visual aids for patients with such deficits. ..

PROVIDED. Vision is useful because it informs us about physical properties of the environment. In the case of color, one important function is to provide information about object identity - color isgenerally considered a perceptual ..

PROVIDED. Vision is useful because it informs us about physical properties of the environment. In the case of color, one important function is to provide information about object identity - color isgenerally considered a perceptual ..

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..New developments in Phase I include the construction of dual-color cancer cells with GFP in the nucleus and RFP in the cytoplasm (Cancer Res 64, 4251-6, 2004; 65, 4246-52, 2005) ..

..As more and more Americans turn to nutraceuticals for a healthier lifestyle, studies like these are increasingly important in the fight against cancer. ..

..Completion of this award would place the candidate in the position to continue programmatic research along these lines and provide a unique contribution to the cognitive neuroscience study of emotion and its disorders. ..

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DESCRIPTION (Investigator's Abstract): This research investigates visual processes that mediate perception of color and brightness in complex scenes...

..The results of these experiments will provide basic information important for studies of temporal lobe epilepsy, Alzheimer's disease, schizophrenia, and depression. ..

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..If this new technique is developed successfully, it will help us to understand much better where the cells exactly go into the brain and elsewhere in the body, which will facilitate introducing these stem cells into patients. ..

..The ultimate goal is to develop ways of reporting on successful cell transplantation without removing any tissue, and to provide neurologists with a means to evaluate stem cell treatment in their patients. ..

..This principle is central to models of color vision (where color is encoded relative to a neutral white point) and has recently been proposed to account for ..

..If this new technique is developed successfully, it will help us to understand much better where the cells exactly go into the brain and elsewhere in the body, which will facilitate introducing these stem cells into patients. ..

..We propose to develop and evaluate three novel assistive visual aids that will improve the ability to watch and enjoy television and movies, and thereby, improve the quality of life of people with reduced central vision. ..

..This principle is central to models of color vision (where color is encoded relative to a neutral white point) and has recently been proposed to account for ..

..The outcome of the workshop will be published in Experimental Neurology and available for the scientific community at large. ..

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..To achieve this goal, our aim is to synthesize novel, more efficient CEST reporter genes, and to detect double-labeled LRP/ARP transfected glioma cells and neural stem cells individually in live animals. ..

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..As the MCs are composed of clinical grade and FDA-approved materials, this MR-guided approach will be readily translatable to human diabetic clinical trials for further improvements of islet cell transplantation. ..

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..pattern-selective) adaptation in the human visual system, and how this adaptation regulates the perception of color and form in stimuli characteristic of the natural visual environment...

..We propose to develop and evaluate three novel assistive visual aids that will improve the ability to watch and enjoy television and movies, and thereby, improve the quality of life of people with reduced central vision. ..