yellow

• adj.

• 黄色の

関

xanthic、xantho

　 　 　 　 　 　

WordNet

1. cowardly or treacherous; "the little yellow stain of treason"-M.W.Straight; "too yellow to stand and fight"
2. turn yellow; "The pages of the book began to yellow"
3. yellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons (同)yellowness
4. changed to a yellowish color by age; "yellowed parchment" (同)yellowed
5. of the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk (同)yellowish, xanthous
6. European perennial naturalized throughout United States having hollow stems with a few long narrow tapered leaves and each bearing a solitary pale yellow flower (同)Tragopogon dubius
7. the threat to Western civilization said to arise from the power of Asiatic peoples
8. popular panfish from Bermuda and Gulf of Mexico to Brazil (同)Gerres cinereus
9. having yellow spots
10. utter or declare in a very loud voice; "You dont have to yell--I can hear you just fine" (同)scream

PrepTutorEJDIC

1. 『黄色の』 / 皮膚の黄色い / 《俗》おく病な(cowardly) / (新聞が)センセーショナルな,扇情的な / 〈U〉『黄色』 / 〈C〉黄色いもの;卵黄 / 〈U〉〈C〉黄色の絵の具(顔料,染料),黄色の服 / …‘を'黄色にする / 黄色になる
2. (…を求めて)『大声で叫ぶ』《+for+名》;(…に)大声をあげる《+at+名》 / (…に向かって)…‘を'叫んで(大声で)言う《+out+名(+名+out)+at(to)+名》 / 『叫び声』金切り声,わめき

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/04/11 15:44:18」(JST)

wiki ja

[Wiki ja表示]

イエロー (yellow) は、英語で黄色の意味。

• 楽曲、アルバム
  • Yellow (木村カエラの曲) - 木村カエラのシングル曲。
  • イエロー (コールドプレイの曲) - イギリスのバンド、コールドプレイのシングル曲。
  • Yellow - livetune feat. 初音ミクの曲。シングル「こっち向いて Baby/Yellow」に収録。
  • YELLOW (電気グルーヴのアルバム) - 電気グルーヴのアルバム。
  • yellow (岡村靖幸のアルバム) - 岡村靖幸のアルバム。
• 漫画
  • YELLOW (宮崎信二・かわぐちかいじ) - 宮崎信二原作、かわぐちかいじ作画の漫画。
  • YELLOW (立野真琴) - 立野真琴の漫画。
• 架空のキャラクター
  • 穴久保幸作の漫画『ポケットモンスター』の登場人物。
  • イエロー (ポケットモンスターSPECIAL) - 漫画『ポケットモンスターSPECIAL』の登場人物。
• 企業、店舗
  • イエロー (映像制作会社) - 東京都目黒区に本社を置く映像制作会社。
  • イエロー - CA傘下の日本のアダルトビデオメーカー。
  • SPACE LAB YELLOW - かつて西麻布に存在したクラブ。

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wiki en

[Wiki en表示]

This article is about the color. For other uses, see Yellow (disambiguation).

Yellow
Spectral coordinates
Wavelength	570–590 nm
Frequency	525–505 THz
Common connotations
sunshine, warmth, fun, happiness, warning, friendship, caution, slow, cowardice, Mardi Gras, summer, lemons, Easter, autumn, electricity, liberalism/libertarianism, hope, optimism, imagination, curiosity
Color coordinates
Hex triplet	#FFFF00
sRGBB    (r, g, b)	(255, 255, 0)
Source	HTML/CSS
B: Normalized to [0–255] (byte)

Yellow (/ˈjɛloʊ/) is the color of gold, butter, or ripe lemons. In the spectrum of visible light, and in the traditional color wheel used by painters, yellow is located between green and orange.

Yellow is commonly associated with gold, sunshine, reason, optimism and pleasure, but also with envy, jealousy and betrayal. It plays an important part in Asian culture, particularly in China.

Etymology and definitions

The word "yellow" comes from the Old English geolu, geolwe, meaning "yellow, yellowish", derived from the Proto-Germanic word gelwaz. It has the same Indo-European base, -ghel, as the word yell; -ghel means both bright and gleaming, and to cry out. Yellow is a color which cries out for attention.

The English term is related to other Germanic words for yellow, namely Scots yella, East Frisian jeel, West Frisian giel, Dutch geel, German gelb, and Swedish gul. According to the Oxford English Dictionary, the oldest known use of this word in English is from The Epinal Glossary in the year 700.

Shades and varieties of yellow

See also Shades of yellow

• Lemons in the market of Valencia, Spain.

• A gold nugget

• Fresh butter

• A fried egg, sunny-side up

• Buddhist monks in Hangzhou, China

• Taxicabs in New York City, USA.

• A field of rapeseed in Germany.

• Saffron is an orange-yellow.

• Turmeric or curcuma longa is used as a spice in Indian and Southeast Asian cooking, as a medicine, and to dye the robes of Buddhist monks.

Yellow in History and Art

Prehistory and Antiquity

Yellow, in the form of yellow ochre pigment made from clay, was one of the first colors used in prehistoric cave art. The cave of Lascaux has an image of a horse colored with yellow estimated to be 17,300 years old.

In Ancient Egypt, yellow was associated with gold,which was considered to be imperishable, eternal and indestructible. The skin and bones of the gods were believed to be made of gold. The Egyptians used yellow extensively in tomb paintings; they usually used either yellow ochre or the brilliant orpiment, though it was made of arsenic and was highly toxic. A small paintbox with orpiment pigment was found in the tomb of King Tutankhamun. Men were always shown with brown faces, women with yellow ochre or gold faces.

The ancient Romans used yellow in their paintings to represent gold and also in skin tones. it is found frequently in the murals of Pompeii.

• Image of a horse colored with yellow ochre. from Lascaux cave.

• Paintings in the Tomb of Nakht in ancient Egypt (15th century BC).

• Yellow ochre was often used in wall paintings in Ancient Roman villas and towns.

• Byzantine art made lavish use of the colors gold and white, here in this mosaic of the Emperor Justinian from the Basilica of San Vitale in Ravenna, Italy (Before 547 AD).

• The flag of the Paleologus dynasty of Byzantine emperors was red and gold.

The Middle Ages and Renaissance

During the Middle Ages and Renaissance, yellow became firmly established as the color of Judas Iscariot, the disciple who betrayed Christ, even though the Bible never describes his clothing. From this connection, yellow also took on took associations with envy, jealousy and duplicity.

The tradition began in the Renaissance of marking non-Christian outsiders, such as Jews, with the color yellow. In 16th century Spain, those accused of heresy and who refused to renounce their views were compelled to come before the Spanish Inquisition dressed in a yellow cape.

• Saffron was sometimes used as a pigment in Medieval manuscripts, such as this page showing the murder of Thomas Becket at Canterbury Cathedral. (Circa 1200).

• The Kiss of Judas (1304-1306) by Giotto di Bondone, followed the Medieval tradition of clothing Judas Iscariot in a yellow toga.

• The Milkmaid by Johannes Vermeer (c. 1658)

The 18th and 19th centuries

The 18th and 19th century saw the discovery and manufacture of synthetic pigments and dyes, which quickly replaced the traditional yellows made from arsenic, cow urine, and other substances.

The 19th century British painter J.M.W. Turner was one of the first in that century to use yellow to create moods and emotions, the way romantic composers were using music. His painting Rain, Steam, and Speed - the Great Central Railway was dominated by glowing yellow clouds.

Georges Seurat use the new synthetic colors in his experimental paintings composed of tiny points of primary colors. particularly in his famous Sunday Afternoon on the Isle de la Grand jatte (1884-1886). He did not know that the new synthetic yellow pigment, zinc yellow or zinc chromate, which he used in the light green lawns, was highly unstable and would quickly turn brown.

The painter Vincent Van Gogh was a particular admirer of the color yellow, the color of sunshine. Writing to his sister from the south of France in 1888, he wrote, "Now we are having beautiful warm, windless weather that is very beneficial to me. The sun, a light that for lack of a better word I can only call yellow, bright sulfur yellow, pale lemon gold. How beautiful yellow is!" In Arles, Van Gogh painted sunflowers inside a small house he rented at 2 Place Lamartine, a house painted what Van Gogh called "buttery yellow." Van Gogh was one of the first artists to use commercially-manufactured paints, rather than paints he made himself. He used the traditional yellow ochre, but also chrome yellow, first made in 1809, and cadmium yellow, first made in 1820.

At the end of the 19th century, in 1895, a new popular art form began to appear in New York newspapers; the color comic strip. It took advantage of a new color printing process, which used color separation and three different colors of ink; magenta, cyan, and yellow, plus black, to create all the colors on the page. One of the first characters in the new comic strips was a humorous boy of the New York streets named Mickey Dugen, more commonly known as the Yellow Kid, from the yellow nightshirt he wore. He gave his name (and color) to the whole genre of popular, sensational journalism, which became known as Yellow Journalism.

• Rain, Steam and Speed the Great Western Railway. (1844). British painter J.M.W. Turner used yellow clouds to create a mood, the way romantic composers of the time used music.

• Georges Seurat used a new pigment, zinc yellow, in the green lawns of Sunday Afternoon on the Isle de la Grande Jatte (1884-1886). He did not know that the paint would quickly deteriorate and turn brown.

• Sunflowers (1888) by Vincent Van Gogh is a fountain of yellows.

• The Yellow Kid (1895) was one of the first comic strip characters. He gave his name to type of sensational reporting called Yellow Journalism.

20th and 21st centuries

In the 20th century, yellow was revived as a symbol of exclusion, as it had been in the Middle Ages and Renaissance. Jews in Nazi Germany and German-occupied countries were required to sew yellow triangles with the star of David onto their clothing.

In the 20th century, modernist painters reduced painting to its simplest colors and geometric shapes. The Dutch modernist painter Piet Mondrian made a series of paintings which consisted of a pure white canvas with grid of vertical and horizontal black lines and rectangles of yellow, red, and blue.

Yellow was particularly valued in the 20th century because of its high visibility. It often replaced red as the color of fire trucks and other emergency vehicles, and was popular in neon signs, especially in Las Vegas and in China, where yellow was the most esteemed color.

The 21st century saw the use of unusual materials and technologies to create new ways of experiencing the color yellow. One example was The weather project, by Danish-Icelandic artist Olafur Eliasson, which was installed in the open space of the Turbine Hall of London's Tate Modern in 2003.

Eliasson used humidifiers to create a fine mist in the air via a mixture of sugar and water, as well as a semi-circular disc made up of hundreds of monochromatic lamps which radiated yellow light. The ceiling of the hall was covered with a huge mirror, in which visitors could see themselves as tiny black shadows against a mass of light.

• Jews in Nazi-occupied Europe were required to wear yellow badges like this.

• Composition with Yellow, Blue and Red by Piet Mondrian (1937 - 1942). Currently held as part of the Tate Collection.[1]

• Yellow was valued for its high visibility. Las Vegas became a showcase of neon art and advertising.

• The Weather Project by Olafur Eliasson at the Tate Modern in London. (2003)

In science

Light, optics and colorimetry

Simply put, yellow is the color the eye sees when it looks at light with a wavelength between 570 and 590 nanometers, the wavelength of light between green and orange.

In the language of optics, yellow is the evoked by light that stimulates both the L and M (long and medium wavelength) cone cells of the retina about equally, with no significant stimulation of the S (short-wavelength) cone cells. Light with a wavelength of 570–590 nm is yellow, as is light with a suitable mixture of red and green. Yellow's traditional RYB complementary color is purple, violet, or indigo, while its colorimetrically defined complementary color in both RGB and CMYK color spaces is blue.

Yellow in color printing and on a computer screen

In color printing, yellow is one of the three colors of ink, along with magenta and cyan, which can be overlaid in the right combination, along with black, to print any full color image. (See the CMYK color model).

The yellow on a color television or computer screen is created in a completely different way; by combining green and red light at the right level of intensity. (See RGB color model).

In technical terms, electric yellow' is the most intense yellow representable in 8-bit RGB color model; yellow is a secondary color in an additive RGB space.

The measured light spectrum from yellow pixels on a typical computer display is complex, and very unlike the reflectance spectrum of a yellow object such as a banana.

Process yellow (also known as pigment yellow, printer's yellow or canary yellow) is one of the three colors typically used as subtractive primary colors, along with magenta and cyan. The CMYK system for color printing is based on using four inks, one of which is a yellow color. This is in itself a standard color, and a fairly narrow range of yellow inks or pigments are used. Process yellow is based on a colorant that reflects the preponderance of red and green light, and absorbs most blue light, as in the reflectance spectra shown in the figure on the lower right.

Because of the characteristics of paint pigments and use of different color wheels, painters traditionally regard the complement of yellow as the color indigo or blue-violet.

Process yellow is not an RGB color, and there is no fixed conversion from CMYK primaries to RGB. Different formulations are used for printer's ink, so there can be variations in the printed color that is pure yellow ink.

The first recorded use of canary yellow as a color name in English was in 1789.

• Color printing typically uses ink of four colors: cyan, magenta, yellow, and key (black). When CMY “primaries” are combined at full strength, the resulting “secondary” mixtures are red, green, and blue

• Mixing all three theoretically results in black, but imperfect ink formulations do not give true black, which is why an additional K component is needed.

• An example of color printing from 1902. Combining images in yellow, magenta and cyan creates a full-color picture. This is called the CMYK color model.

• On a computer display, yellow is created by combining green and red light at the right intensity on a black screen.This is called the RGB color model.

The complementary colors of yellow

Hunt defines that "two colors are complementary when it is possible to reproduce the tristimulus values of a specified achromatic stimulus by an additive mixture of these two stimuli." That is, when two colored lights can be mixed to match a specified white (achromatic, non-colored) light, the colors of those two lights are complementary. This definition, however, does not constrain what version of white will be specified. In the nineteenth century, the scientists Grassmann and Helmholtz did experiments in which they concluded that finding a good complement for spectral yellow was difficult, but that the result was indigo, that is, a wavelength that today's color scientists would call violet. Helmholtz says "Yellow and indigo blue" are complements. Grassman reconstructs Newton's category boundaries in terms of wavelengths and says "This indigo therefore falls within the limits of color between which, according to Helmholtz, the complementary colors of yellow lie."

Newton's own color circle has yellow directly opposite the boundary between indigo and violet. These results, that the complement of yellow is a wavelength shorter than 450 nm, are derivable from the modern CIE 1931 system of colorimetry if it is assumed that the yellow is about 580 nm or shorter wavelength, and the specified white is the color of a blackbody radiator of temperature 2800 K or lower (that is, the white of an ordinary incandescent light bulb). More typically, with a daylight-colored or around 5000 to 6000 K white, the complement of yellow will be in the blue wavelength range, which is the standard modern answer for the complement of yellow.

• Complements of yellow have a dominant wavelength in the range 380 to 480 nm. The green lines show several possible pairs of complementary colors with respect to different blackbody color temperature neutrals, illustrated by the "Planckian locus".

Lasers

Lasers emitting in the yellow part of the spectrum are less common and more expensive than most other colors. In commercial products diode pumped solid state (DPSS) technology is employed to create the yellow light. An infrared laser diode at 808 nm is used to pump a crystal of neodymium-doped yttrium vanadium oxide (Nd:YVO4) or neodymium-doped yttrium aluminium garnet (Nd:YAG) and induces it to emit at two frequencies (281.76 THz and 223.39 THz: 1064 nm and 1342 nm wavelengths) simultaneously. This deeper infrared light is then passed through another crystal containing potassium, titanium and phosphorus (KTP), whose non-linear properties generate light at a frequency that is the sum of the two incident beams (505.15 THz); in this case corresponding to the wavelength of 593.5 nm ("yellow"). This wavelength is also available, though even more rarely, from a helium-neon laser. However, this not a true yellow, as it exceeds 590 nm. A variant of this same DPSS technology using slightly different starting frequencies was made available in 2010, producing a wavelength of 589 nm, which is considered a true yellow color. The use of yellow lasers at 589 nm and 594 nm have recently become more widespread thanks to the field of Optogenetics.

Astronomy

Stars of spectral classes F and G, such as our sun Sol, have color temperatures that make them look "yellowish". The first astronomer to classify stars according to their color was F. G. W. Struve in 1827. One of his classifications was flavae, or yellow, and this roughly corresponded to stars in the modern spectral range F5 to K0. The Strömgren photometric system for stellar classification includes a 'y' or yellow filter that is centered at a wavelength of 550 nm and has a bandwidth of 20–30 nm.

Biology

Why autumn leaves, daffodils, bananas and egg yolks are yellow

Autumn leaves, yellow flowers, bananas, oranges and other yellow fruit all contain carotenoids, yellow and red organic pigments that are found in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms like algae, some bacteria, and some fungi. They serve two key roles in plants and algae: they absorb light energy for use in photosynthesis, and they protect the green chlorophyll from photodamage.

In late summer, as daylight hours shorten and temperatures cool, the veins that carry fluids into and out of the leaf are gradually closed off. The water and mineral intake into the leaf is reduced, slowly at first, and then more rapidly. It is during this time that the chlorophyll begins to decrease. As the chlorphyll diminishes, the yellow and red carotenoids become more and more visible, creating the classic autumn leaf color.

Carotenoids are common in many living things; they give the characteristic color to carrots, corn, daffodils, rutabagas, buttercups, and bananas. They are responsible for the red of cooked lobsters, the pink of flamingoes and salmon, and the yellow of canaries, and egg yolks.

Xanthophylls are the most common yellow pigments that form one of two major divisions of the carotenoid group. The name is from Greek xanthos (ξανθος, "yellow") + phyllon (φύλλον, "leaf"). Xanthophylls are most commonly found in the leaves of green plants, but they also find their way into animals through the food they eat. For example, the yellow color of chicken egg yolks, fat, and skin comes from the feed the chickens consume. Chicken farmers know this, and often add xanthophylls, usually lutein, to make the egg yolks more yellow.

Bananas are green when they are picked because of the chlorphyll their skin contains. Once picked, they begin to ripen; hormones in the bananas convert amino acids into ethylene gas, which stimulates the production of several enzymes. These enzymes start to change the color, texture and flavor of the banana. The green chlorphyll supply is stopped and the yellow color of the carotenoids replaces it; eventually, as the enzymes continue their work, the cell walls break down and the bananas turn brown.

Yellow is the most visible color, and is particularly attractive to birds and insects. it is believed that the vision of birds is particularly sensitive to certain colors, such as yellow. Yellow pan traps are used to capture insects, many of which are attracted to shades of yellow.

• Autumn colors along the Eagle River near Anchorage, Alaska

• Daffodils in Cornwall.

• Bananas, like autumn leaves, canaries, and egg yolks, get their yellow color from natural pigments called carotenoids.

• The yolk of a raw egg. The color comes from the xanthophyll carotenoids lutein and zeaxanthin

Birds

• Yellow-breasted Chats (Icteria virens) are large foraging songbird found in southern parts of Canada, the United States, Mexico, and Central America. They are olive with a white bellie and a yellow throat and breast, with a long tail, a thick heavy bill, a large white eye ring, and dark legs.
• The Yellowhammer (Emberiza citrinella) is a passerine in the bunting family Emberizidae. It breeds across Europe and much of Asia. Most yellowhammers are resident, but some far northern birds migrate south in winter. It is common in all sorts of open areas with some scrub or trees. They are large with a thick seed-eater's bill. The males have a bright yellow head, yellow underparts, and a heavily streaked brown back. Females are much duller and more streaked below.
• The Yellow-shafted Flicker (Colaptes auratus) is a large woodpecker of eastern North America. It is a subspecies of the Northern Flicker. They have yellow shafts on their wing and tail feathers.
• The Yellow Warbler (Dendroica petechia) is a species of Warbler living in most of North America who is completely yellow other than a few red streaks on the breast and head in males.
• The Domestic Canary (Serinus Canaria) is the domesticated form of the Wild Canary, a small songbird. The color canary yellow is named after the Domestic Canary, which can be selectively bred to be yellow.

• Yellow-breasted Chat

• Yellowhammer

• A male Yellow warbler.

• A Domestic Canary.

Fish

• Yellowtail is the common name for dozens of different fish species that have yellow tails or a yellow body.
• Yellowfin tuna (Thunnus albacares) is a species of tuna, having bright yellow anal and second dorsal fins. Found in tropical and subtropical seas and weighing up to 200 kg (440 lb), it is caught as a replacement for depleted stocks of bluefin tuna.

Insects

• A yellow-fever mosquito is a mosquito in the Aedes genus, so named because they transmit dengue fever and yellow fever, the mosquito-born viruses.

• Yellowjackets are black-and-yellow wasps of the genus Vespula or Dolichovespula (though some can be black-and-white, the most notable of these being the bald-faced hornet, Dolichovespula maculata). They can be identified by their distinctive black-and-yellow color, small size (slightly larger than a bee), and entirely black antennae.

• A Yellow jacket, or wasp

• A monarch butterfly (Danaus plexippus)

Trees

• The yellow birch (Betula alleghaniensis) is a birch species native to eastern North America, from Nova Scotia, New Brunswick, and southern Quebec west to Minnesota, and south in the Appalachian Mountains to northern Georgia. They are medium-sized deciduous trees and can reaching about 20 m tall, trunks up to 80 cm in diameter. The bark is smooth and yellow-bronze and the wood is extensively used for flooring, cabinetry, and toothpicks.
• The Thorny yellowwood is an Australian rainforest tree which has deep yellow wood.
• Yellow poplar is a common name for Liriodendron, the tuliptree. The common name is inaccurate as this genus is not related to poplars.

Flowers

Yellow is the most common color of flowers; the color makes it the most visible to the insects who are needed to bring pollen to the flowers.

• Acacia dealbata (Silver Wattle)

• Aconitum lycoctonum (Northern Wolfsbane)

• Anthemis tinctoria
  (Golden Marguerite)

• Anthyllis vulneraria (Common kidneyvetch)

• Arnica montana (Leopard's bane)

• Balsamorhiza sagittata (Arrowleaf Balsamroot)

• Brugmansia aurea (Angel's Trumpet)

• Calendula officinalis (Pot Marigold)

• Digitalis grandiflora (Big-flowered Foxglove)

• Echinacea paradoxa (Yellow Coneflower)

• Eranthis hyemalis

• Eschscholzia californica (California Poppy)

• Forsythia × intermedia (Border Forsythia)

• Gagea lutea

• Gazania rigens (Coastal Gazania)

• Glebionis coronaria (Crown Daisy)

• Helianthus annuus (Sunflower)

• Hibiscus syriacus cultivar (Common Hibiscus)

• Hieracium muorum (Wall Hawkweed)

• Hypericum perforatum (Common St. John's Wort)

• Iris pseudacorus (Yellow Flag Iris)

• Jacobaea aquatica (Marsh Ragwort)

• Jasminum nudiflorum (Winter Jasmine)

• Kerria japonica (Kerria)

• Linaria vulgaris (Common Toadflax)

• Narcissus (plant)
  (Daffodil)

• Opuntia humifusa (Eastern Prickly Pear)

• Osteospermum

• Oxalis pes-caprae (Bermuda Buttercup)

• Primula elatior (True oxlip)

• Ranunculus repens (Creeping Buttercup)

• Rose (Yellow roses)

• Saxifraga aizoides (Yellow Saxifrage)

• Tagetes erecta (Marigold)

• Tanacetum vulgare (Tansy)

• Taraxacum sect. Ruderalia (Dandelion)

• Trollius laxus (Globeflower)

• Trollius europaeus (Globe-flower)

• Tussilago farfara (Coltsfoot)

• Viola tricolor cultivar (Pansy)

Other plants

• Rapeseed (Brassica napus), also known as rape or oilseed rape, is a bright yellow flowering member of the family Brassicaceae (mustard or cabbage family).
• Goldenrod is a yellow flowering plant in the Family Asteraceae.

Minerals and chemistry

• Yellowcake (also known as urania and uranic oxide) is concentrated uranium oxide, obtained through the milling of uranium ore. Yellowcake is used in the preparation of fuel for nuclear reactors and in uranium enrichment, one of the essential steps for creating nuclear weapons.
• Titan yellow (also known as clayton yellow), chemical formula C₂₈H₁₉Na₂O₆S₄ has been used to determine magnesium in serum and urine, but the method is prone to interference, making the ammonium phosphate method superior when analysing blood cells, food or fecal material.
• Methyl yellow (p-Dimethylaminoazobenzene) is a pH indicator used to determine acidity. It changes from yellow at pH=4.0 to red at pH=2.9.
• Yellow fireworks are produced by adding sodium compounds to the firework mixture. Sodium has a strong emission at 589.3 nm (D-line), a very slightly orange-tinted yellow.
• Amongst the elements, sulfur and gold are most obviously yellow. Phosphorus, arsenic and antimony have allotropes which are yellow or whitish-yellow; fluorine and chlorine are pale yellowish gases.

Pigments

• Yellow ochre (also known as Mars yellow, Pigment yellow 42, 43), hydrated ferric oxide (Fe₂O₃.H₂O), is a naturally occurring pigment found in clays in many parts of the world. It is non-toxic and has been used in painting since prehistoric times.
• Indian yellow is a transparent, fluorescent pigment used in oil paintings and watercolors. Originally magnesium euxanthate, it was claimed to have been produced from the urine of Indian cows fed only on mango leaves. It has now been replaced by synthetic Indian yellow hue.
• Naples Yellow (lead antimonate yellow) is one of the oldest synthetic pigments, derived from the mineral bindheimite and used extensively up to the 20th century. It is toxic and nowadays is replaced in paint by a mixture of modern pigments.
• Cadmium Yellow (cadmium sulfide, CdS) has been used in artists' paints since the mid-19th century. Because of its toxicity, it may nowadays be replaced by azo pigments.
• Chrome Yellow (lead chromate, PbCrO₄), derived from the mineral crocoite, was used by artists in the earlier part of the 19th century, but has been largely replaced by other yellow pigments because of the toxicity of lead.
• Zinc yellow or zinc chromate is a synthetic pigment made in the 19th century, and used by the painter Georges Seurat in his pointilist paintings. He did not know that it was highly unstable, and would quickly turn brown.
• Titanium Yellow (nickel antimony titanium yellow rutile, NiO.Sb₂O₅.20TiO₂) is created by adding small amounts of the oxides of nickel and antimony to titanium dioxide and heating. It is used to produce yellow paints with good white coverage and has the LBNL paint code "Y10".
• Gamboge is an orange-brown resin, derived from trees of the genus Garcinia, which becomes yellow when powdered. It was used as a watercolor pigment in the far east from the 8th century – the name "gamboge" is derived from "Cambodia" – and has been used in Europe since the 17th century.
• Orpiment, also called King's Yellow or Chinese Yellow is arsenic trisulfide (As₂S₃) and was used as a paint pigment until the 19th century when, because of its high toxicity and reaction with lead-based pigments, it was generally replaced by Cadmium Yellow.
• Azo-dye based pigment (a brightly colored transparent or semitransparent dye with a white pigment) is used as the colorant in most modern paints requiring either a highly saturated yellow or simplicity of color mixing. The most common is the monoazo arylide yellow family, first marketed as Hansa Yellow.

Dyes

• Saffron, like Turmeric, is one of the rare dyes that is also a spice and food colorant. It is made from the dried red stigma of the crocus sativus flower. It must be picked by hand and it takes 150 flowers to obtain a single gram of stigma, so it is extremely expensive. It probably originated in the Mediterranean or Southwest Asia, and its use was detailed in a 7th-century BC Assyrian botanical reference compiled under Ashurbanipal.. It was known in India at the time of the Buddha, and after his death his followers decreed that monks should wear robes the color of saffron. Saffron was used to dye the robes of the senior Buddhist monks, while ordinary monks wore robes dyed with Gamboge or Curcuma longa, also known as Turmeric.

The color of saffron comes from crocin, a red variety of carotenoid natural pigment. The color of the dyed fabric varies from deep red to orange to yellow, depending upon the type of saffron and the process. Most saffron today comes from Iran, but it is also grown commercially in Spain, Italy and Kashmir in India, and as a boutique crop in New Zealand, the United Kingdom, France, Switzerland and other countries. In the United States, it has been cultivated by the Pennsylvania Dutch community since the early 18th century. Because of the high price of saffon, other similar dyes and spices are often sold under the name saffron; for instance, what is called Indian saffron is often really turmeric.

• Curcuma longa, also known as turmeric, is a plant grown in India and Southeast Asia which serves as a dye for clothing, especially monks' robes; as a spice for curry and other dishes; and as a popular medicine. It is also used as a food coloring for mustard and other products.

• Reseda luteola, also known as dyers weed, yellow weed or weld, has been used as a yellow dye from neolithic times. It grew wild along the roads and walls of Europe, and was introduced into North America, where it grows as a weed. It was used as both as a yellow dye, whose color was deep and lasting, and to dye fabric green, first by dyeing it blue with indigo, then dyeing it with reseda luteola to turn it a rich, solid and lasting green. It was the most common yellow dye in Europe from the Middle Ages until the 18th century, when it was replaced first by the bark of the quercitron tree from North America, then by synthetic dyes. It was also widely used in North Africa and in the Ottoman Empire.

• Gamboge is a deep saffron to mustard yellow pigment and dye. In Asia, it is frequently used to dye Buddhist monks' robes. Gamboge is most often extracted by tapping resin from various species of evergreen trees of the family Guttiferae, which grow in Cambodia, Thailand, and elsewhere in Southeast Asia. "Kambuj" (Sanskrit: कंबुज) is the ancient Sanskrit name for Cambodia.

• Orpiment was a source of yellow pigment from ancient Egypt through the 19th century, though it was highly toxic.

• Indian yellow pigment

• Chrome yellow was discovered in 1809.

• The dye and spice saffron comes from the dried red stigma of this plant, the crocus sativus.

• Curcuma longa, also known as Turmeric, has been used for centuries in India as a dye, particularly for monk's robes. it is also commonly used as a medicine and as a spice in Indian cooking.

• Reseda luteola, also known as dyers weed, yellow weed or weld, was the most popular source of yellow dye in Europe from the Middle Ages through the 18th century.

• The Garcinia tree of Southeast Asia, whose resin is used to make the yellow dye called gamboge.

• Reflectance spectra of yellow pigments, as a percentage of white (Abney 1891)

• Structure of Titan yellow

Food coloring

The most common yellow food coloring in use today is called Tartrazine . It is a synthetic lemon yellow azo dye. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Acid Yellow 23, Food Yellow 4, and Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate). It is the yellow most frequently used such processed food products as corn and potato chips, breakfast cereals such as corn flakes, candies, popcorn, mustard, jams and jellies, gelatin, soft drinks (notably Mountain Dew), energy and sports drinks, and pastries. It is also widely used in liquid and bar soap, shampoo, cosmetics and medicines. Sometimes it is mixed with blue dyes to color processed products green.

It is typically labelled on food packages as "color", "tartrazine", or "E102". In the United States, because of concerns about possible health problems related to intolerance to tartrazine, its presence must be declared on food and drug product labels.

Another popular synthetic yellow coloring is Sunset Yellow FCF (also known as Orange Yellow S, FD&C Yellow 6 or C.I. 15985) It is manufactured from aromatic hydrocarbons from petroleum. When added to foods sold in Europe, it is denoted by E Number E110.

Sunset Yellow FCF is often used in orange sodas, marzipan, apricot jam, citrus marmalade, lemon curd, packaged soups, margarine, custard powders, packaged lemon gelatin desserts, energy drinks, cheese sauce mixes and many other foods, as well as over-the-counter medicines (especially children's medicines) and other products with artificial yellow, orange or red colors.

Because of public concerns about possible health hazards of synthetic food colorings, some companies are changing to natural food colorings from such plants as turmeric and annatto.

Symbolism and associations

In the west, yellow is not a well-loved color; in a 2000 survey, only six percent of respondents in Europe and America named it as their favorite color. compared with 45 percent for blue, 15 percent for green, 12 percent for red, and 10 percent for black. For seven percent of respondents, it was their least favorite color. Yellow is the color of ambivalence and contradiction, the color associated with optimism and amusement but also with betrayal and duplicity. But in China and other parts of Asia, yellow is a color of virtue and nobility.

Yellow in China

Yellow has strong historical and cultural associations in China, where it is the color of happiness, glory, and wisdom. In China, there are five directions of the compass; north, south, east, west, and the middle, each with a symbolic color. Yellow signifies the middle. China is called the Middle Kingdom; the palace of the Emperor was considered to be in the exact center of the world.

The name of the legendary first Emperor of China, Huang Ti, meant literally "the Yellow Emperor." The last emperor of China, Puyi (1906-1967), described in his memoirs how every object which surrounded him as a child was yellow. "It made me understand from my most tender age that I was of a unique essence, and it instilled in me the consciousness of my "celestial nature" which made me different from every other human."

The Chinese Emperor was literally considered the child of heaven, with both a political and religious role, both symbolized by yellow. Only members of the Imperial household were permitted to wear yellow. Distinguished visitors were honored with a yellow, not a red, carpet.

In Chinese symbolism, yellow, red and green are masculine colors, while black and white are considered feminine. In the traditional symbolism of the two opposites which complement each other, the yin and yang, the masculine yang is traditionally represented by yellow. Just as there are five elements, five directions and five colors in the Chinese world-view, there are also five seasons; summer, winter, fall, spring, and the end of summer, symbolized by yellow leaves.

• Portrait of the Zhengde Emperor from the Ming dynasty.

• The Qianlong Emperor in court dress (18th century).

• Neon lights in modern Shanghai show a predominance of red and yellow

Light and Reason

Yellow, as the color of sunlight, is commonly associated with warmth. Yellow combined with red symbolized heat and energy. A room painted yellow feels warmer than a room painted white, and a lamp with yellow light seems more natural than a lamp with white light.

As the color of light, yellow is also associated with knowledge and wisdom. In English and many other languages, "brilliant" and "bright" mean intelligent. In Islam, the yellow color of gold symbolizes wisdom. In medieval European symbolism, red symbolized passion, blue symbolized the spiritual, and yellow symbolized reason. In many European universities, yellow gowns and caps are worn by members of the faculty of physical and natural sciences, as yellow is the color of reason and research.

Yellow, gold and blond

The word for 'gold' in Latin is aurum, which means yellow. (It also is the origin of the word 'orange.'). In ancient Greece, the gods were depicted with yellow hair, and men commonly bleached their hair or spent hours in the sun to turn it yellow. However, in medieval Europe and later, the word yellow often had negative connotations; so yellow hair was more poetically called 'blond,' 'light', 'fair,' or especially 'golden.'

The color of visibility and caution

Yellow is the most visible color from a distance, so it is often used for objects that need to be seen, such as fire engines, road maintenance equipment, school buses and taxicabs. It is also often used for warning signs, since yellow traditionally signals caution, rather than danger. A yellow light on a traffic signal means slow down, but not stop; a yellow penalty card in a soccer match means warning, but not expulsion.

• A mailbox in Germany. Yellow was the color of the early postal service in the Habsburg Empire.

• A crashtender of the Royal Danish Air Force.

• An RAF Sea King rescue helicopter.

• Yellow penalty card given during the match between Arsenal F.C. and Birmingham City F.C. (2010)

The color of optimism and pleasure

Yellow is the color most associated with optimism and pleasure; it is a color designed to attract attention, and for amusement. Yellow dresses in fashion are rare, but always associated with gaiety and celebration.

• The Empress Eugenie dressed as Marie Antoinette, painted by Franz Winterhalter (1854)

• Portrait of Madame Kuznetsova, by Ilya Repin. (1901)

• The Ball by James Tissot (1880)

Yellow in other cultures

• The ancient Maya associated the color yellow with the direction South. The Maya glyph for "yellow" (k'an) also means "precious" or "ripe".
• Yellow" ("giallo"), in Italy, refers to crime stories, both fictional and real. This association began in about 1930, when the first series of crime novels published in Italy had yellow covers.
• The term "yellow movie" (黃色電影) can refer to films of pornographic nature in Chinese culture, and is analogous to the English "blue movie".

Music

• The Beatles 1966 album Revolver features the No. 1 hit, "Yellow Submarine". Subsequently United Artists released an animated film in 1968 called "Yellow Submarine", based on the music of the Beatles.
• The March 1967 album by Donovan called Mellow Yellow reached number 2 on the U.S. Billboard charts in 1966 and number 8 in the UK in early 1967. The featured song on the album, "Mellow Yellow", popularized during the Spring of 1967 a widely believed hoax that it was possible to get high by smoking scrapings from the inside of banana peels, although this rumor was actually started in 1966 by Country Joe McDonald.
• Coldplay achieved worldwide fame with their 2000 single "Yellow".
• "Yellow River" is a song recorded by the British band Christie in 1970.
• The "Yellow River Piano Concerto" is a piano concerto arranged by a collaboration between musicians including Yin Chengzong and Chu Wanghua. Its premiere was in 1969 during the Cultural Revolution.

Politics

• In the United States, a yellow dog Democrat was a Southern voter who consistently voted for Democratic candidates in the late 19th and early 20th centuries because of lingering resentment against the Republicans dating back to the Civil War and Reconstruction period. Today the term refers to a hard-core Democrat, supposedly referring to a person who would vote for a "yellow dog" before voting for a Republican.

• The Yellow Turbans were a Daoist sect that staged an extensive rebellion during the Han Dynasty.

Historic flags

• The banner of the Holy Roman Empire (15th century). The black, yellow and red colors reappeared centuries later in the German flag.

• (1819) The flag of Gran Colombia, which won independence from Spain, then broke into three countries (Colombia, Venezuela and Ecuador) in 1830.

• Imperial flag of the Qing Dynasty, China (1890-1912), the last dynasty of China, overthrown by the Xinhai Revolution of 1911.

• Flag of South Vietnam (1955-1975). This was the flag of the non-communist southern part of Vietnam during the Vietnam War. It was replaced by the flag of North Vietnam when communist forces overran Saigon on April 30, 1975.

• The flag of East Germany (1959-1990). After the fall of the Berlin Wall, many Germans simply cut out the Communist symbol in the center so it matched the flag of West Germany.

Selected national and international flags featuring yellow

Three of the five most populous countries in the world (China, India, and Brazil) have yellow or gold in their flag, representing about half of the world's population. While many flags use yellow, their symbolism varies widely, from civic virtue to golden treasure, golden fields, the desert, royalty, the keys to Heaven and the leadership of the Communist Party.

• Flag of India (1947). The yellow color is officially called India saffron, and represents courage and sacrifice.

• Flag of Germany. Black, red and yellow were the colors of the Holy Roman Emperor, and, in 1919, of the German Weimar Republic. The modern German flag was adopted in 1949.

• Flag of Belgium (1831). The yellow comes from the yellow lion in the coat of arms of the Duchy of Brabant, founded in 1183-84.

• Flag of Bhutan (1956). The Bhutan flag features Druk, the thunder dragon of Bhutanese mythology. The yellow represents civic tradition, the red the Buddhist spiritual tradition.

• Flag of the People's Republic of China (1949). The four small gold stars represent the workers, peasants, urban middle class, and rural middle class. The large star represents the Chinese Communist Party.

• Flag of Brazil (1889). Yellow and green were colors of the Emperors of the House of Braganza who ruled Brazil from 1822 until 1889.

• Flag of Brunei (1956). In Southeast Asia yellow is the color of royalty. it is the color of the Sultan of Brunei, and also appears on the flag of Thailand and of Malaysia.

• Flag of Colombia. The asymmetric design of the flag is based on the old Flag of Gran Colombia. The yellow color represents the golden treasure taken from Colombia over the centuries.

• Flag of Spain (1978). The yellow in the Spanish flag comes from the traditional Crown of Castille and the Crown of Aragon. The general design was adopted in 1785 for the Spanish Navy, to be visible from a great distance at sea.

• Flag of Lithuania (1918 to 1940, restored in 1989, modified in 2004). Yellow represents the golden fields of Lithuania, green the countryside, and red the blood of Lithuanian martyrs.

• Flag of Malaysia (original version, 1950, current version 1963.) The yellow crescent represents Islam, the yellow star the unity of the fourteen states of Malaysia. The red and white stripes (like the stripes on the U.S. flag) are adopted from the flag of the British East India Company.

• Flag of Mozambique (1983). The colors are those of the Marxist Liberation Front of Mozambique, or FRELIMO, which rules the country. Yellow represents the country's mineral wealth.

• Flag of Romania (1848, and again in 1989, after the fall of the Communist regime.) Blue, yellow and red were the colors of the Wallachian uprising of 1821, and the 1848 revolution which won independence for Romania. Yellow represents justice.

• Flag of Sweden (adopted 1906, but colors in use since at least mid-16th century). The legend says that in 1157, during the First Swedish Crusade, the Swedish king Eric the Holy saw a golden cross appear in the blue sky.

• Flag of Chad (1959). The color yellow here represents the sun and the desert in the north of the country. This flag is identical to that of Romania, except that it uses a slightly darker indigo blue rather than cobalt blue.

• Flag of the European Union. The flag of the European Union was first created for the Council of Europe in 1953, then adopted by the European Union in 1985. The twelve yellow or gold stars do not represent any particular countries; twelve was chosen as a number which represented unity and harmony. .

• Flag of Vatican City (1929). The yellow color represents the golden key of the Kingdom of heaven, described in the Book of Matthew of the New Testament, and part of the Papal seal on the flag.

Religion

• in The Roman Catholic church, yellow symbolizes gold, and the golden key to the Kingdom of Heaven, which Christ gave to Saint Peter. The flag of the Vatican City and the colors of the pope are yellow and white, symbolizing the gold key and the silver key. White and yellow together can also symbolize easter, rebirth and Resurrection. Golden haloes mark the saints in religious paintings. Yellow also has a negative meaning, symbolizing betrayal; Judas Iscariot is usually portrayed wearing a pale yellow toga, and without a halo.

• In Hinduism, the divinity Krishna is commonly portrayed dressed in yellow. Yellow and saffron are also the colors worn by sadhu, or wandering holy men in India.

• In Buddhism, the saffron colors of robes to be worn by monks were defined by the Buddha himself and his followers in the 5th century B.C.. The robe and its color is a sign of renunciation of the outside world and commitment to the order. The candidate monk, with his master, first appears before the monks of the monastery in his own clothes, with his new robe under his arm. and asks to enter the order. He then takes his vows, puts on the robes, and with his begging bowl, goes out to the world. Thereafter, he spends his mornings begging and his afternoons in contemplation and study, either in a forest, garden, or in the monastery.

According to Buddhist scriptures and commentaries, the robe dye is allowed to be obtained from six kinds of substances: roots and tubers, plants, bark, leaves, flowers and fruits. The robes should also be boiled in water a long time to get the correctly sober color. Saffron and ochre, usually made with dye from the curcuma longa plant or the heartwood of the jackfruit tree, are the most common colors. The so-called forest monks usually wear ochre robes and city monks saffron, though this is not an official rule.

The color of robes also varies somewhat among the different "vehicles," or schools of Buddhism, and by country, depending on their doctrines and the dyes available. The monks of the strict Vajrayana, or Tantric Buddhism, practiced in Tibet, wear the most colorful robes of saffron and red. The monks of Mahayana Buddhism, practiced mainly in Japan, China and Korea, wear lighter yellow or saffron, often with white or black. Monks of Hinayana Buddhism, practiced in Southeast Asia, usually wear ochre or saffron color. Monks of the forest tradition in Thailand and other parts of Southeast Asia wear robes of a brownish ochre, dyed from the wood of the jackfruit tree.

• In the religions of the islands of Polynesia, yellow is a sacred color, the color of the divine essence; the word "yellow" in the local languages is the same as the name of the curcuma longa plant, which is considered the food of the gods.

• Christ giving the golden key of the kingdom heaven to Saint Peter, (1481–82), by Pietro Perugino. The golden key is the symbol of the Pope.

• Pope Benedict XVI. The Pope traditionally wears gold and white outside St. Peter's Basilica.

• Buddhist monks at the promotion ceremony of a monk in Thailand

• Buddhist monks in Tibet

• A Japanese Buddhist monk in downtown Tokyo

• A Hindu sadhu, or ascetic wandering monk or holy man, in Kathmandu, Nepal.

• Krishna with a sacred cow

Metaphysics

• In the metaphysics of the New Age Prophetess, Alice A. Bailey, in her system called the Seven Rays which classifies humans into seven different metaphysical psychological types, the fourth ray of harmony through conflict is represented by the color yellow. People who have this metaphysical psychological type are said to be on the Yellow Ray."
• Yellow is used to symbolically represent the third, solar plexus chakra (Manipura).
• Psychics who claim to be able to observe the aura with their third eye report that someone with a yellow aura is typically someone who is in an occupation requiring intellectual acumen, such as a scientist.

Sports

• In Association football (soccer), the referee shows a yellow card to indicate that a player has been officially cautioned because they have committed a foul or have wasted time.
• Originally in Rugby League and then later, also in Rugby Union, the referee shows a yellow card to indicate that a player has been sent to the sin bin.
• In cycle racing, the yellow jersey – or maillot jaune – is awarded to the leader in a stage race. The tradition was begun in the Tour de France where the sponsoring L'Auto newspaper (later L'Équipe) was printed on distinctive yellow newsprint.

• Bradley Wiggins wears the yellow jersey in the 2012 Tour de France.

Transportation

• In some countries, taxicabs are commonly yellow. This practice began in Chicago, where taxi entrepreneur John D. Hertz painted his taxis yellow based on a University of Chicago study alleging that yellow is the color most easily seen at a distance.
• In Canada and the United States, school buses are almost uniformly painted a yellow color (often referred to as "school bus yellow") for purposes of visibility and safety, and British bus operators such as FirstGroup plc are attempting to introduce the concept there.
• "Caterpillar yellow" and "high-visibility yellow" are used for highway construction equipment.
• In the rules of the road, yellow (called "amber" in Britain) is a traffic light signal warning that the period in which passage is permitted is coming to an end. It is intermediate between green (go) and red (stop). In railway signaling, yellow is often the color for warning, slow down, such as with distant signals.

Vexillology

• In International maritime signal flags a yellow flag denotes the letter "Q". It also means a ship asserts that it does not need to be quarantined.

Idioms and Expressions

• Yellow-belly is an American expression which means a coward. The term comes from the 19th century and the exact origin is unknown, but it may refer to the color of sickness, which means a person lacks strength and stamina.

• Yellow Pages refers in various countries to directories of telephone numbers, arranged alphabetically by the type of business or service offered.

• The Yellow Peril was a term used in politics and popular fiction in the late 19th and early 20th century to describe the alleged economic and cultural danger posed to Europe and America by Chinese immigration. The term was first used by Kaiser Wilhelm II in Germany in 1895, and was the subject of numerous books and later films.

• High yellow was a term sometimes used in the early 20th century, to describe light-skinned African-Americans.

See also

• List of colors
• RYB color model
• Sodium vapor lamp
• Variations of yellow
• Xanthophobia
• Yellow Pages

References

• Ball, Philip (2001). Bright Earth, Art and the Invention of Colour. Hazan (French translation). ISBN 978-2-7541-0503-3. 
• Heller, Eva (2009). Psychologie de la couleur - Effets et symboliques. Pyramyd (French translation). ISBN 978-2-35017-156-2. 
• Keevak, Michael (2011). Becoming Yellow: A Short History of Racial Thinking. Princeton University Press. ISBN 978-0-6911-4031-5. 
• Pastoureau, Michel (2005). Le petit livre des couleurs. Editions du Panama. ISBN 978-2-7578-0310-3. 
• Gage, John (1993). Colour and Culture - Practice and Meaning from Antiquity to Abstraction. Thames and Hudson (Page numbers cited from French translation). ISBN 978-2-87811-295-5. 
• Varichon, Anne (2000). Couleurs - pigments et teintures dans les mains des peuples. Seuil. ISBN 978-2-02084697-4. 
• Zuffi, Stefano (2012). Color in Art. Abrams. ISBN 978-1-4197-0111-5. 
• Russo, E.; Dreher, M. C.; Mathre, M. L. (2003), Women and Cannabis: Medicine, Science, and Sociology (1st ed.), Psychology Press (published March 2003), ISBN 978-0-7890-2101-4 
• Willard, P. (2002), Secrets of Saffron: The Vagabond Life of the World's Most Seductive Spice, Beacon Press (published 11 April 2002), ISBN 978-0-8070-5009-5 
• Arvon, Henri (1951). Le bouddhisme. Presses Universitaires de France. ISBN 978-2-13-055064-8. 

Notes

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English Journal

• Hydroxysafflor yellow A induces apoptosis in activated hepatic stellate cells through ERK1/2 pathway in vitro.

• Li CC, Yang CZ, Li XM, Zhao XM, Zou Y, Fan L, Zhou L, Liu JC, Niu YC.SourceThe Institute of Medicine, Qiqihar Medical University, Qiqihar 161006, China.
• European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.Eur J Pharm Sci.2012 Aug 15;46(5):397-404. Epub 2012 Mar 16.
• A key feature in the molecular pathogenesis of liver fibrosis requires maintenance of the activated hepatic stellate cells (HSCs) phenotype by inhibition of apoptosis. The induction of apoptosis in activated HSCs has been proposed as an antifibrotic treatment strategy. This study aims at evaluating
• PMID 22449726

• Human small intestinal and colonic tissue mounted in the Ussing chamber as a tool for characterizing the intestinal absorption of drugs.

• Rozehnal V, Nakai D, Hoepner U, Fischer T, Kamiyama E, Takahashi M, Yasuda S, Mueller J.SourceTissue and Cell Research Center Munich, Daiichi Sankyo Europe GmbH, Bunsenstrasse 7, 82152 Martinsried, Germany.
• European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.Eur J Pharm Sci.2012 Aug 15;46(5):367-73. Epub 2012 Mar 7.
• The purpose of this study was to validate human small intestinal and colonic tissue mounted in the Ussing chamber as a tool for predicting the oral drug absorption in humans with the main focus on moderately and poorly permeable compounds. The obtained apparent permeability coefficient (P(app)) of e
• PMID 22418036

• County-scale distribution of polycyclic aromatic hydrocarbons in topsoil of the Yellow River Delta Region.

• Xie W, Chen A, Li J, Liu Q, Yang H, Lu Z.Sourcea Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Key Food Safety Laboratory of Binzhou City, Binzhou University , Binzhou , China.
• Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering.J Environ Sci Health A Tox Hazard Subst Environ Eng.2012 Aug;47(10):1419-27.
• The Yellow River Delta (YRD) is a typical agricultural and petrochemical industrial area in China. To assess the current status of polycyclic aromatic hydrocarbons (PAHs) of soil residues, soil samples (0-15 cm) (n = 82) were collected in Bincheng District, at the geographic center of the YRD. Conce
• PMID 22571530

• Estimation of the effective intercellular diffusion coefficient in cell monolayers coupled by gap junctions.

• Olesen NE, Hofgaard JP, Holstein-Rathlou NH, Nielsen MS, Jacobsen JC.SourceThe Danish National Research Foundation, Centre for Cardiac Arrhythmias, and The Department of Biomedical Sciences, University of Copenhagen, Denmark.
• European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.Eur J Pharm Sci.2012 Jul 16;46(4):222-32. Epub 2011 Aug 25.
• OBJECTIVE: A recently developed dye-based assay to study gap junction permeability is analysed. The assay is based on electroporation of dye into a large number of connexin 43 expressing cells, grown to confluency on electrically conductive slides. The subsequent intercellular spread of dye to non-e
• PMID 21888966

Japanese Journal

• 防蛾用黄色LED光がキクの開花反応に及ぼす影響

• 石倉 聡,梶原 真二,福島 啓吾,後藤 丹十郎
• 岡山大学農学部学術報告 102, 35-41, 2013-02-01
• … 終夜照明では約80mW m-2であり，暗期中断のほぼ半分であった．以上のことから，黄色LED光は，単一の光源としてキクの防蛾と開花抑制に両用することが可能であった．In order to develop a single light source which can be used both for moth control and flower inhibition in chrysanthemum, effects of blue (463nm), green (519nm), yellow green (576nm), yellow (597nm) and red light (646nm) LEDs on the flowering and the cut flower characteristics of chrysanthemum were …
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• 玉木 秀和,東野 豪,小林 稔,井原 雅行
• 情報処理学会論文誌 54(1), 275-283, 2013-01-15
• 本研究では,低コストで利用場所の制約が少ないWeb会議システムを用いて司会者のいないアイデア出し会議やフリーディスカッションを実施する際に,発話の衝突を低減させ,円滑な話者交替を可能にすることを目指す.そのために,本稿では発話欲求伝達手法を提案する.まず参加者の動作をシステムが観察し,その参加者の発話欲求度合いを推定する.参加者各々に,その推定結果をリアルタイムにフィードバックすることで,参加者自 …
• NAID 110009511448

• 関東地方における稲発酵粗飼料用品種夢あおばの生育特性

• 石川 哲也,草 佳那子
• 日本作物学会紀事 82(1), 76-80, 2013-01
• NAID 40019563647

• 紫外線を用いた黄ニラの緑化防止

• 大久 長範,松田 亜優,佐藤 祐香 [他]
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★リンクテーブル★

リンク元	「xanthic」「黄色」「xantho」
拡張検索	「butter yellow」「methyl yellow」

「xanthic」

　　[★]

• 黄色の

関

xantho、yellow

「黄色」

　　[★]

英

yellow、xanthic、xantho

「xantho」

　　[★]

黄色

関

xanthic、yellow

「butter yellow」

　　[★] バターイエロー。パラジメチルアミノアゾベンゼン

「methyl yellow」

　　[★] メチルイエロー。パラジメチルアミノアゾベンゼン