dikaryon
dikaryon A cell of a fungal hypha or mycelium containing two haploid nuclei of different strains. The nuclei associate in pairs but do not fuse, therefore the cell is not truly diploid. Dikaryosis occurs in the Basidiomycota and Ascomycota. See
heterokaryosis.
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Arsenic facts.
Magazine article from: National Driller; 3/1/2004; 700+ words
; Arsenic in well water may come from natural sources or human activity. Arsenic is an element commonly found in soil and rocks, and certain rock types tend have higher levels of arsenic. Pesticides and herbicides containing arsenic were...
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Arsenic Contamination in West Bengal and Bangladesh: Statistical Errors.
Magazine article from: Environmental Health Perspectives; 2/1/2001; ; 700+ words
; ...Chowdhury et al. (1) address arsenic contamination in groundwater from two countries in Asia. Although arsenic contamination is a serious concern for...at risk in these areas by measuring arsenic levels using various biochemical parameters...
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Chronic arsenic poisoning from burning high-arsenic-containing coal in Guizhou, China. (Commentaries).
Magazine article from: Environmental Health Perspectives; 2/1/2002; ; 700+ words
; Arsenic is an environmental hazard and the reduction of drinking water arsenic levels is under consideration. People are exposed to arsenic not only through drinking water but also through arsenic-contaminated air and food. Here we report the...
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Arsenic exposure and type 2 diabetes: a systematic review of the experimental and epidemiologic evidence.
Magazine article from: Environmental Health Perspectives; 5/1/2006; ; 700+ words
; Chronic arsenic exposure has been suggested to contribute to diabetes...and epidemiologic evidence on the association of arsenic and type 2 diabetes. We identified 19 in vitro studies of arsenic and glucose metabolism. Five studies reported...
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Arsenic on the hands of children: Wang et al. respond.(Perspectives / Correspondence)
Magazine article from: Environmental Health Perspectives; 6/1/2005; ; 700+ words
; In our study of arsenic on children's hands (Kwon et al. 2004), we measured arsenic in water samples in which participating children...washing water was filtered, and the soluble arsenic concentration in the filtrate was determined...
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Arsenic on the hands of children after playing in playgrounds.(Children's Health / Article)
Magazine article from: Environmental Health Perspectives; 10/1/2004; ; 700+ words
; ...structures arise from potential exposure to arsenic of children playing in these playgrounds...Limited data from previous studies analyzing arsenic levels in sand samples collected from...the amount of children's exposure to arsenic. The objective of this study was to determine...
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Arsenic threat reaching global dimensions
Magazine article from: Canadian Medical Association. Journal; 11/20/2007; ; 700+ words
; The scope of arsenic contamination of drinking water, and...have been exposed to drinking water with arsenic contamination levels higher than the World...geographer Peter Ravenscroft. "Natural arsenic pollution is a global phenomenon. We...
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Arsenic On The Rocks.(development of arsenic-inhibiting chemicals for use in water treatment)(Brief Article)
Magazine article from: Poptronics; 9/1/2001; 700+ words
; ...That's not always the case. Water Sans Arsenic In some groundwater, inorganic arsenic occurs naturally--seeping out of rock and soils near the aquifer. Ingesting high levels of arsenic has been linked to a variety of cancers and...
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Arsenic-Induced Skin Lesions among Atacameno People in Northern Chile Despite Good Nutrition and Centuries of Exposure.
Magazine article from: Environmental Health Perspectives; 7/1/2000; ; 700+ words
; ...be protected from the health effects of arsenic in drinking water because of many centuries...on the first intensive investigation of arsenic-induced skin lesions in this population...750 and 800 [micro]g/L inorganic arsenic. For comparison, 8 families (31 participants...
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Arsenic in Urine and Drinking Water.
Magazine article from: Environmental Health Perspectives; 11/1/2000; ; 700+ words
; ...article by Calderon et al., "Excretion of Arsenic in Urine as a Function of Exposure to Arsenic in Drinking Water" (1), to be interesting...information concerning the stability of urinary arsenic measurements over time. We were surprised...
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Arsenic (revised)
Book article from: Chemical Elements: From Carbon to Krypton
ARSENIC (REVISED) Note: This article, originally...in 2006 for the eBook edition. Overview Arsenic compounds have been known since at least...compound most often used for both purposes was arsenic sulfide (As2S3). Arsenic was first recognized...
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Arsenic
Book article from: Pollution A to Z
Arsenic Arsenic (As) is a naturally occurring element that has been used in a variety...preservatives, and as a treatment for syphilis. Throughout history, arsenic was the most often used poison. Some historians believe that Nero used...
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arsenic
Book article from: The Columbia Encyclopedia, Sixth Edition
arsenic , a semimetallic chemical element; symbol...73; valence -3, 0, +3, or +5. Arsenic appears in several allotropic forms (see...temperatures burns to form a white cloud of arsenic trioxide. A yellow crystalline form and...
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Arsenic Trioxide
Encyclopedia entry from: Gale Encyclopedia of Cancer
Arsenic trioxide Definition Arsenic trioxide, also known by the trade name Trisenox, is an antitumor...type of leukemia known as acute promyelocytic leukemia. Purpose Arsenic trioxide is used to treat acute promyelocytic leukemia in patients...
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Periodic Table of the Elements: Arsenic
Book article from: The Columbia Encyclopedia, Sixth Edition
Periodic Table of the Elements: Arsenic Periodic Table of the Elements: Arsenic Atomic Number: 33 Atomic Symbol: As Arsenic Atomic Weight: 74.9216 Electron Configuration: 2 · 8 · 18 · 5
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