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Suppression of UVB-induced cutaneous erythema by a previous UVB exposure
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Suppression of UVB-induced Cutaneous Erythema by a Previous UVB Exposure(pragraph)
ABSTRACT
People who vacation in sunny places are exposed to the sun on multiple occasions at least on a daily basis. The clinical assessment of sun exposure is erythema in the first 48 h after exposure and pigmentation at times greater than 3-5 days. The purpose of this investigation was to determine the extent to which consecutive erythemogenic exposures result in additive erythema responses. Studies were conducted in which volunteers were first exposed to a graded series of fluences of UVB radiation and ...
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Black chalcedony. (Jewel of the Month).(Brief Article)
Magazine article from: JCK's High-Volume Jeweler
; ...stone is chalcedony, a cryptocrystalline...Examples of chalcedonies of just one...rare. Most chalcedony is multicolored...multicolored chalcedonies include bloodstone...irregular, the chalcedony is called agate. Because chalcedonies are porous...
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Black chalcedony. (Jewel of the Month).(black onyx)(Brief Article)
Magazine article from: Jewelers Circular Keystone
; ...stone is chalcedony, a cryptocrystalline...Examples of chalcedonies of just one...rare. Most chalcedony is multicolored...multicolored chalcedonies include bloodstone...irregular, the chalcedony is called agate. Because chalcedonies are porous...
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Blue chalcedony.(jewel of the month)
Magazine article from: Jewelers Circular Keystone
; ...color types are sold as chalcedony, whereas the rest...as jasper or agate. Chalcedonies are nearly always cabbed...Namibia's blue chalcedony, often called "African...valuable of the "blue" chalcedonies, is a translucent purple-to-lavender chalcedony, that is, a blue...
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Introducing sea blue chalcedony. (Gem Notes).(Brief Article)
Magazine article from: Jewelers Circular Keystone
; Chalcedony is a natural microcrystalline quartz...and fire agate. Common translucent chalcedony occurs in a wide range of natural colors...discoveries made in blues and lavenders. With chalcedony's recent popularity--thanks to...
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Where's a good piece of chalcedony when you need one?(Gem Notes)(Brief Article)
Magazine article from: Jewelers Circular Keystone
; ...sardonyx, agate (banded chalcedony) bloodstone, sard...Matching inexpensive chalcedonies with beaders can result...artists have discovered chalcedony, too. They can get...and carvers can get chalcedony from almost anywhere in the world. Second, chalcedonies, including agates...
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Chalcedony: It's Back and Blue.(Brief Article)
Magazine article from: Jewelers Circular Keystone
; ...in our February issue that lavender chalcedony is fast becoming a hot commodity among...artists and jewelry designers ("Lavender Chalcedony: A New Find," JCK, February 2001...interest in an old favorite--blue chalcedony. "It's been around a lot longer...
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Lavender Chalcedony: A New Find.(from Gem Reflections of California)(Brief Article)
Magazine article from: Jewelers Circular Keystone
; ...This time, it's lavender chalcedony. While chalcedonies, particularly agates, are...nice new find. The purplish chalcedony is found in an area that also...beauty. The new lavender chalcedony, a translucent material colored...
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Maxam Magnata makes new chalcedonies for Tucson show.(www.wholesalegems.com)(Brief Article)
Magazine article from: Jewelers Circular Keystone
; ...is launching two new colors of dyed chalcedony: Sunfire (golden yellow) and Verdana...green). Magnata released Sea Blue chalcedony last year in Tucson. Magnata is following...vogue. Because of its porous nature, chalcedony is often dyed. The most common dyed...
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US CHALCEDONY ALLIED WITH HUIJIE
News Wire article from: AsiaInfo Services
; AsiaInfo Services 08-23-1999 US Chalcedony Allied with Huijie CHINA, August 23...It was announced on August 12 that US Chalcedony and Huijie Group had established a strategic...intelligence network products and solutions. Chalcedony is a world-famous network designer...
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The milky way: designers are rediscovering the allure of chalcedony, a rare stone that's lighting up the season. (Accessories Flash).
Magazine article from: W
; Chalcedony doesn't exactly roll off the tongue...imagination of jewelry designers this season. Chalcedony had its heyday back in the Thirties...Duchess of Windsor in 1937. Comprised of chalcedony beads, leaves and an exquisite flower...
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