Use dmy dates date June 2011 Use Australian English date June 2011 Bougainville Copper Ltd is an Australian copper , gold , and silver mining company that operates the Panguna open pit mining open cut mine on the island of Bougainville Island Bougainville in Papua New Guinea PNG . It was one of the world s largest open pit mines. The Panguna mine dominated the economy of the island during the 1970s and 1980s. It also was highly significant to the overall PNG economy In the 1970s and the 1980s the company s tax and dividend payments added up to approx. 20 of PNG s national budget. Shareholder structure ... of Bougainville Copper ESBC with approx. 4 . The remaining freefloat of 23 is held by private investors ... Copper had set up a system of apartheid on the island, with one set of facilities for white workers, and one set for the locals. They accused Bougainville Copper Ltd., of being responsible for poisoning the entire length of the Jaba River, and causing birth defects, as well as the extinction ...?id article 748 ftn4 Benggong v Bougainville Copper Pty Ltd 1971 HCA 31 1971 124 CLR 47 ref The mine ... remains unlikely. Bougainville Copper Ltd. furthermore holds 7 additional mining licenses on Bougainville ... 2008 and brokered by the President of the European Shareholders of Bougainville Copper ESBC , Axel ... Bougainville Copper Ltd Bougainville Copper http www.bougainville copper.eu European Shareholders of Bougainville Copper ESBC http www.undervalued shares.com data pdfs Undervalued Shares BOC UK 200807 PG0008526520 Bougainville Copper.pdf.zip Undervalued Shares.com Bougainville Copper Roaring back ... Undervalued Shares.com Swen Lorenz An entirely new take on Bougainville Copper http www.bougainville copper.eu pageID 9452209.html Bougainville Copper Limited All Annual Reports since 1967 Mining ... Category Autonomous Region of Bougainville Category Rio Tinto subsidiaries de Bougainville Copper fr Bougainville Copper Ltd. uk ... more details
Refimprove date October 2006 Orphan date November 2009 Image PCB copper pour thermal pads.png thumb right 250px Copper pour on a printed circuit board flowing around tracks and pads. Image PCB copper pour hatch filled.png thumb right 250px Copper pour is sometimes filled using a hatch fill style. In electronics, the term copper pour refers to an area on a printed circuit board filled with copper the metal used to make connections in printed circuit boards . Copper pour is commonly used to create a ground plane . Another reason for using copper pour is to reduce the amount of industrial etching etching fluid used during manufacturing. A distinctive feature of copper pour is the backoff or stand off a certain distance between the copper pour and any tracks or pads not belonging to the same electrical net . A copper pour therefore looks like it flows around other components, with the exception of pads which are connected to the copper pour using thermal connection s. While solid copper pour provides better resistive characteristics, hatched copper pour is used to balance the heat and dilatation on both sides of the board in order to avoid warping of certain substrate. ref cite web url http www.electronicspoint.com copper pour traces t72199.html post message 556731 title Copper pour or traces? publisher electronicspoint.com date 2007 08 01 accessdate 2011 08 31 ref Heating might cause gas bubbles between solid copper pour and certain substrates. ref cite web url http forum.allaboutcircuits.com newsgroups viewtopic.php?p 8563 8563 title PADS hatch vs pour publisher allaboutcircuits.com date 2003 09 20 accessdate 2011 08 31 ref Furthermore it might be possible to adjust the impedance of high frequency traces by using hatched copper pour in order to reach better signal quality. ref cite web url http electronics.stackexchange.com questions 5139 solid ground plane vs hatched ground ... date 2010 10 12 accessdate 2011 09 01 ref References references DEFAULTSORT Copper Pour Category ... more details
The Copper Scroll Dead Sea scrolls Survey of Scrolls 3Q15 is one of the Dead Sea Scrolls found in Cave ... on parchment or papyrus , this scroll is written on metal copper mixed with about 1 percent tin ... and the Abuse of the Copper Scroll , Bible and Interpretation, July 2009 ref The Copper Scroll ... of the Dead Sea Scrolls were found by Bedouins, the Copper Scroll was discovered by an archaeologist. ref cite web last Lundberg first Marilyn J. title The Copper Scroll 3Q15 url http www.usc.edu dept ... 5 April 2011 ref The scroll, on two rolls of copper, was found on March 14, 1952 ref cite ... further back in the cave, away from the other scrolls. As a result he suggested the Copper Scroll ... and hand drawn transcriptions from the original copper segments in 1960. Milik published his official ... photographs were virtually illegible . ref Al Wolters, article on the Copper Scroll , in Schiffman .... ref Dating Scholarly estimates of the probable date range of The Copper Scroll vary. Frank Moore ... 70 135 CE ref Albert M. Wolters Al Wolters , article on the Copper Scroll , in Schiffman, 2000a ... 10 0 06 076662 x pages 211 223 ref Whereas, Emile Puech argued that the deposit of the Copper Scroll ..., Some Results of the Restoration of the Copper Scroll by EDF Mecenat , in Schiffman, 2000b, p.893 ... of course the Copper Scroll is not. As a result, most of the vocabulary is simply not found in the Bible ... The Copper Scroll 3Q15 url http www.usc.edu dept LAS wsrp educational site dead sea scrolls copperscroll.shtml ... , and the script has the features which would result from someone writing on the copper with a hammer ... title The Copper Document from Cave III, Qumran journal The Biblical Archaeologist year 1956 month ... of the first column of the Copper Scroll shows the basic structure of each of the entries in the scroll ... may have been recovered. Although the scroll was made of alloyed copper in order to last, the locations ... would top 1,000,000 U.S ref cite web last Lundber first Marilyn title The Copper Scroll 3Q15 url http ... more details
Copper oxide is a compound from the two elements copper and oxygen. Copper oxide may refer to Copper I oxide cuprous oxide, Cu sub 2 sub O , a red powder Copper II oxide cupric oxide, CuO , a black powder See also Nanotoxicology disambig Category Copper compounds ar da Kobberoxid de Kupferoxid es xido de cobre hu R z oxid egy rtelm s t lap ja pl Tlenek miedzi ru simple Copper oxide sv Kopparoxid vi x t ng ... more details
Infobox protein family Symbol Copper fist Name Copper fist domain image PDB 1co4 EBI.jpg width caption Structure of a zinc domain conserved in yeast copper regulated transcription factors. ref name pmid9665167 cite journal author Turner RB, Smith DL, Zawrotny ME, Summers MF, Posewitz MC, Winge DR title Solution structure of a zinc domain conserved in yeast copper regulated transcription factors journal Nat. Struct. Biol. volume 5 issue 7 pages 551 5 year 1998 month July pmid 9665167 doi 10.1038 805 url ref Pfam PF00649 InterPro IPR001083 SMART SM00412 PROSITE PS50073 SCOP 1co4 TCDB OPM family OPM protein PDB PDB2 1co4 Copper fist is an N terminus N terminal domain involved in copper dependent DNA binding domain DNA binding . It is named for its resemblance to a fist. It can be found in some fungal transcription factor s. These proteins activate the transcription of the metallothionein gene in response to copper. Metallothionein maintains copper levels in yeast . The copper fist domain is similar in structure to metallothionein itself, and on copper binding undergoes a large Protein structure conformational change, which allows DNA binding. External links http www.biochem.northwestern.edu holmgren Glossary Definitions Def C copper fist.html Copper fist definition References Reflist Category Protein domains protein stub ... more details
Copper Cove may refer to Copper Cove Subdivision, California Copper Cove Village, California geodis Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Infobox company company name Yunnan Copper Company Limited br company logo Image Chinalco.png company type State owned enterprise genre foundation 1958 founder location city Kunming , Yunnan location country People s Republic of China location origins key people Chairman Mr. Liu Mingcai area served People s Republic of China industry Copper products manufacturing products services revenue operating income net income num employees divisions subsid owner parent Yunnan Copper Group company slogan homepage http www.yunnan copper.com Yunnan Copper Company Limited Yunnan Copper Company Limited szse 000878 is the third largest copper producer in China. It was established in 1958 in Kunming , Yunnan , formerly Yunnan Smelting Plant . ref http ccne.mofcom.gov.cn 131272 Yunnan Copper Industry Co., Ltd. ref ref http www.iht.com articles 2007 08 22 bloomberg sxcsi.php China stocks index moves past 5,000 for the first time ref Its products include copper cathode, sulfuric acid , copper rod, bare copper wire, gold , silver , platinum , palladium , selenium , tellurium , bismuth , copper sulfate and nickel sulfate . ref http wrightreports.ecnext.com coms2 reportdesc COMPANY C1568I200 Yunnan Copper Company Limited ref In November 2007, Aluminium Corporation of China acquired 49 of total shares of Yunnan Copper Group , Yunnan Copper Company s parent company . ref http chinadaily.cn bizchina 2007 11 02 content 6333238.htm Chinalco pays 1b for stake in Yunnan Copper ref References reflist External links http www.yunnan copper.com Yunnan Copper Company Limited SZSECI Metal companies of China Category Companies based in Yunnan Category Companies established in 1958 Category Government owned companies of the People s Republic of China Category Metal companies of China Category 1958 establishments in China de Yunnan Copper id Chinalco zh ... more details
Infobox settlement official name Copper Bank image skyline imagesize 300px image caption image flag image seal pushpin map Belize pushpin mapsize 300 map caption Location of Copper Bank village coordinates region BZ subdivision type List of countries Country subdivision name flag Belize subdivision type1 Districts of Belize District subdivision name1 Corozal District subdivision type2 subdivision name2 leader title leader name established title established date area magnitude area total km2 area total sq mi area land km2 area land sq mi area water km2 area water sq mi area water percent area urban km2 area urban sq mi area metro km2 area metro sq mi population as of population note population total population density km2 population density sq mi population metro population density metro km2 population density metro sq mi population urban timezone Central Time zone Central utc offset 6 timezone DST utc offset DST latd 18 latm 19 lats 16.09 latNS N longd 88 longm 21 longs 21.17 longEW W elevation m 3 elevation ft website footnotes Copper Bank is a fishing village in the Corozal District of Belize . It is situated on the west bank of Laguna Seca , a shallow lagoon that empties into Chetumal Bay just north east of the village. The closest settlement is Chunox , located approximately 1.25 miles away on the east bank of the Laguna Seca. Access to the village is possible by road from Orange Walk Town Orange Walk , via the villages of San Estevan, Belize San Estevan and Progresso, Belize Progresso . It is also possible to reach the village by road from Corozal Town Corozal , crossing the New River Belize New River via the Pueblo Nuevo ferry, and from the isolated community of Sarteneja , via a ferry across the mouth of Laguna Seca. The village has been suggested as the site of a lost Maya civilization Maya n town, Uatibal, and several artifacts have been found in the vicinity ... References http www.belizenorth.com copper bank.htm coord 18 19 16.09 N 88 21 21.17 W display title ... more details
Unreferenced date December 2010 Copper based chips are semiconductor integrated circuit s, usually microprocessor s, which use copper for Interconnection semiconductors interconnection s. Since copper ... processors. The transition from aluminium to copper required significant developments in fabrication ... damaging copper atoms. Patterning Because of the lack of volatile copper compounds, copper could not be patterned ... that had been used with great success with aluminium. The inability to plasma etch copper called for a drastic ... should be. A thick coating of copper that significantly overfills the trenches is deposited ... is used to remove the copper to the level of the top of the insulating layer. Copper sunken within ... processes generally form and fill a single feature with copper per Damascene stage. Dual Damascene processes generally form and fill two features with copper at once, e.g., a trench overlying a via electronics via may both be filled with a single copper deposition using dual Damascene. With successive layers of insulator and copper, a multilayer 5 10 metal layers or more interconnection structure is created. Without the ability of CMP to remove the copper coating in a planar and uniform fashion, and without the ability of the CMP process to stop repeatably at the copper insulator interface, this technology ... all copper interconnections, since diffusion of copper into surrounding materials would degrade their properties. For instance, silicon forms deep level trap s when doping semiconductor doped with copper. As the name implies, a barrier metal must limit copper diffusivity sufficiently to chemically isolate the copper conductor from the silicon below, yet have high electrical electrical conductivity ... quite important with too thin a layer, the copper contacts poison the very devices that they connect to with too thick a layer, the stack of two barrier metal films and a copper conductor have a greater ... in going from earlier aluminium to copper based conductors was modest, and not as good ... more details
orphan date January 2010 Copper sweetening is a petroleum refining process using a slurry of clay and cupric chloride to oxidize mercaptan s. The resulting disulfide s are less odorous and usually very viscous, and are usually removed from the lower boiling fractional distillation fractions and left in the heavy fuel oil fraction. http nobel.scas.bcit.ca resource glossary a c.htm coppersweet http productsearch.machinedesign.com definition Chemical Engineering Linde copper sweetening Copper sweetening introduces trace amount of copper into the resulting products, which tends to have detrimental effecs as it leads to formation of wikt gummy gummy residues. Other sources of copper include contact with refinery parts made of copper and copper alloys. Copper is one of the most active instability promoters, and concentrations as low as 0.1 ppm can have marked negative effect. To combat these, metal deactivator s are added to some fuels. See also Sour crude oil Sweet crude oil Category Oil refining Category Chemical processes chemistry stub petroleum stub ... more details
align right border 1 cellspacing 0 cellpadding 3 style float right clear right margin 0 0 0 0.5em background FFFFFF border collapse collapse border color C0C090 chembox header Copper salicylate Common name copper salicylate Systematic name copper 2 hydroxybenzoate Chemical formula Cu sub 2 sub C sub 14 sub H sub 10 sub O sub 6 sub CAS number 20936 31 6 Copper salicylate is a Compound chemistry compound with formula Cu sub 2 sub C sub 6 sub H sub 5 sub OCOO sub 2 sub . It is the copper salt of salicylic acid . organic compound stub Category Salicylates Category Copper compounds ... more details
A copper pesticide is a copper compound used as a pesticide or fungicide . In the UK the Soil Association one of the Organic certification organic certification authorities permits farmers to use some copper fungicides on organic land used for the production of Certified organic food certified organic crops only if there is a major threat to crops. ref Section 4.11.11, http www.soilassociation.org LinkClick.aspx?fileticket U4dYxI6QZqw 3d&tabid 353 Soil Association Organic Standards for Producer, Version 16.1, April, 2010 ref During the 2008 growing season the compounds were applied to much of the organic potato crop to control potato blight Phytophthora infestans . ref http www.dailymail.co.uk news article 505427 Thousands tons organic food produced using toxic chemicals.html Thousands of tons of organic food produced using toxic chemicals article by David Derbyshire in The Daily Mail 01 January 2008 ref The compounds permitted are Copper II sulfate As a herbicide.2C fungicide and pesticide copper sulfate , Copper II hydroxide Uses copper hydroxide , Copper I oxide General applications cuprous oxide , copper oxychloride , copper ammonium carbonate at a maximum concentration of 25 g l , and copper oxtanoate . According to the Soil Association the total copper that can be applied to organic land is 6kg ha year. ref http www.soilassociation.org Certification Servicesforlicensees Forms Horticultureandarable tabid 406 Default.aspx Links to forms permitting application of copper fungicide on the website of the Soil Association ref This limit is designed so that the amount of copper in the soil does not exceed the limits specified in the Soil Association standards for heavy metals. Such copper compounds can build up in the soil and in excessive concentrations cause liver, kidney and blood disease. ref http www.dailymail.co.uk news article 505427 Thousands tons organic food produced using toxic chemicals.html Thousands of tons of organic food produced using toxic chemicals article ... more details
About the colour Copper disambiguation File Copper 18706.jpg thumb left Crystallized copper metal is copper colored. Copper is a red dish brown color that resembles the metal copper . infobox color title Copper hex B87333 r 184 g 115 b 51 c 0 m 32 y 72 k 28 h 29 s 72 v 72 source Maerz and Paul ref The color displayed in the color box above matches the color called copper in the 1930 book by Maerz and Paul A Dictionary of Color New York 1930 McGraw Hill the color copper is displayed on page 31 Plate 4, Color Sample I11. ref At right is displayed the color copper . The first recorded use of copper ... New York 1930 McGraw Hill Page 193 Color Sample of Copper Page 31 Plate 4 Color Sample I11 ref Variations of copper Pale copper infobox color title Copper Crayola hex DA8A67 r 218 g 138 b 103 c 15 m 53 ... pale tone of copper that is called copper in Crayola crayons. This color was formulated by Crayola in 1958. Copper red infobox color title Copper Red hex CB6D51 r 203 g 109 b 81 c 0 m 46 y 60 ... Tool set to hex code CB6D51 Copper Red ref source http tx4.us nbs nbs c.htm ISCC NBS At right is displayed the color copper red . The first recorded use of copper red as a color name in English ... 1955 Color Sample of Copper Red color sample 39 Copper penny infobox color title Copper Penny textcolor ... color.asp?RGB 23AD6F69 web.forrett.com Color Conversion Tool set to hex code AD6F69 Copper Penny ref source List of Crayola crayon colors Silver Swirls Crayola At right is displayed the color copper penny . Copper penny is one of the colors in the special set of metallic Crayola crayons called List ... in 1990. Copper rose The first recorded use of copper rose as a color name in English language English ... Sample of Copper Rose Page 33 Plate 5 Color Sample J5 ref Kenyan copper infobox color title Kenyan Copper textcolor white hex 7C1C05 r 124 g 28 b 5 c 0 m 77 y 96 k 51 h 12 s 96 v 49 ref http web.forret.com ... Copper ref source http xona.com colorlist Xona.com Color List At right is displayed the color Kenyan ... more details
with Whensday via a boat on the Red River. Honeycut Greenhouse Similar to Steinbeck s Lenny ... elephant and places it high in a tree. Because of the acid rain, it turns a copper color, hence the name ... ill. They cobble together a flotilla of body boxes and attempt to paddle up the river, away ... stays with them. Author Comments on Writing With The Copper Elephant I was sort of pissed off about ... Adam Rapp DEFAULTSORT Copper Elephant Category 1995 novels Category American young adult novels ... more details
Other uses Copper Canyon disambiguation Refimprove date March 2012 Copper Canyon Spanish Barranca del ... ref The canyons were formed by six river s which drain the western side of the Sierra ... and empty into the Sea of Cortez . The walls of the canyon are a copper green color which is where the name originates. History The Spain Spanish arrived in the Copper Canyon area in the 17th century ... of the mountainous regions of Copper Canyon has moderate temperatures from October to November and March ... for copper , gold and other metals not only produces air pollution from Smelting smelters , but has been linked to the serious decline of the Tarahumara Frog Rana tarahumarae . Every river system has .... Citation needed date February 2011 Indigenous people unreferenced section date March 2011 Copper ... ball along the paths of the steep canyons. Tourism is a growing industry for Copper Canyon, but the acceptance ... ways to explore Copper Canyon such as hiking, biking, driving or horseback riding. The most popular ... Nacional Barranca del Cobre Copper Canyon National Park to showcase this remote area. The park ... located in or on the Copper Canyon are Bahuichivo, Chihuahua Bahuichivo , ChePe train stop for Cerocahui ... River at the bottom of a canyon first established by the Spanish around 1632 to mine silver ... Rio Grande . All other Copper Canyon rivers flow into the Sea of Cortez Pacific Ocean. Cerocahui, Chihuahua .... Urique , 560m. Located at the bottom of the canyon rim below Bahuichivo, on the Urique River. It is 30 km NW of Batopilas, now connected by a rough road. Popular culture Copper Canyon was featured ..., his mother and the timeless teachings of the Tarahumaras. Copper Canyon was also featured in the Film The Three Burials of Melquiades Estrada . Copper Canyon was also a destination in Motorcycle Mania ... , a book by Jeff Biggers, looks at a Tarahumara village in the Copper Canyon. ref cite book last ... ref , chronicling the story of ultra runner Micah True in the Copper Canyon with the Tarahumara Indians ... more details
Infobox company company name Jiangxi Copper Company br company logo Image Jiangxicopper.png company type State owned enterprise genre foundation 1979 founder location city Guixi , Jiangxi location ... People s Republic of China industry Copper mining products Copper, Sulfuric acid , Gold , Silver , Platinum ... Copper Company Information ref parent Jiangxi Copper Corporation divisions subsid owner company slogan homepage http www.jxcc.com www.jxcc.com Jiangxi Copper zh t s sehk 358 , SSE 600362 , OTCBB JIXAY is the largest copper producer in Mainland China . Its operations include copper mining , Milling machine milling , smelting and refining to produce copper related products, including pyrite ... Yuhuang and its headquarter is located at Guixi , Jiangxi , China . Jiangxi Copper is China s largest copper producer, and manufactures 340,000 tons of copper annually from its mines, which include the Dexing .... Jiangxi Copper is also engaged in the production, processing and sale of copper cathode s, copper ... such as molybdenum , selenium , rhenium , tellurium and bismuth . Jiangxi Copper is also involved in the exploration and exploitation of copper, gold, silver, lead and zinc , as well as the provision of financial services . Jiangxi Copper distributes its products in domestic markets, and exports ... Copper increased approximately 6.09 million metric tons of copper, 145 metric tons of gold and 1,700 metric tons of silver in reserve. It owns a copper smelter and refinery, and its majority owned Jiangxi Copper Products subsidiary manufactures copper rods and wires. Other operations include gold and silver production. Jiangxi Copper Company Limited was formed by parent Jiangxi Copper Corporation, which is owned by the Chinese government, in 1997. Jiangxi Copper Corporation owns 48 of Jiangxi Copper Company Limited. Officers and directors Yihuang Li Chairman of the Board Baomin Li Vice Chairman ... companies of China Category Companies based in Jiangxi de Jiangxi Copper fr Jiangxi Copper zh yue ... more details
Taxobox name Copper shark image Bronze whaler auckland.jpg image width 240px image alt A bronze shark ... Confirmed dark blue and suspected light blue range of the copper shark ref name compagno et al ... br Galeolamna greyi small Owen, 1853 small small ambiguous synonym small The copper shark , bronze ... , with scattered reports from equator ial regions. This species can be found from brackish river s and estuaries ... . A large species reaching convert 3.3 m ft abbr on long, the copper shark is difficult to distinguish ... on cephalopod s, bony fish es, and other cartilaginous fish es, the copper shark is a fast swimming ... not noted as being especially dangerous to humans, the copper shark has been responsible for a number ... . Taxonomy Because of its very patchy range, the copper shark has been scientifically described several ... or may not have belonged to a copper shark. Modern authors have assigned this species to the genus ... efforts to determine the evolutionary relationships of the copper shark were based on morphology ... of the copper shark is the spinner shark C. brevipinna , but could not resolve their wider relationships with the rest of the genus. ref name naylor Fossil ized teeth from the copper shark have been recovered from the Pungo River in North Carolina , dating to the Miocene 23 5.3 mya unit Ma , ref ... years ago . ref name long Distribution and habitat The copper shark is the only member of its genus ... to Point Conception , California , including the Gulf of California . The copper shark is common off ... range is ill defined because of confusion with other species. ref name iucn ref name compagno Copper ... been reported from estuaries and the lower reaches of large river s. Juveniles inhabit inshore waters ... observed in shallow water. ref name iucn Populations of copper sharks in both hemispheres perform ... arched profile behind the head, a triangular first dorsal fin, and a large, asymmetrical tail The copper shark can be difficult to distinguish from other large Carcharhinus species. The copper shark ... more details
File Voltametro a rame.png thumb 200px Copper coulometer The copper coulometer is a one of the common application of the coppercopper II sulfate electrode . Such a coulometry coulometer consists of two identical copper electrodes immersed in slightly acidic buffer solution pH buffered solution of copper II sulfate . Passing of current electricity current through the element leads to the anodic solvation dissolution of the metal on anode and simultaneous Deposition chemistry deposition of copper ions on the cathode . These reactions have 100 efficiency over a wide range of the current densities. Calculation Amount of the quantity of electricity passed through the cell can be easily calculated by mass changes of any of the electrodes math Q frac Delta m 2 F 63.546 math , where Q is the quantity of electricity coulombs math Delta m math is the mass transported gm 63.546 is the atomic weight of copper the factor 2 is due to the transport of divalent ions F is the Faraday constant 96485.3383 Although from a theoretical and historical point of view this apparatus is interesting, present day electronic measurement of time and electrical current provide in their multiplication the amount of passed coulomb s much easier, with greater precission, and in a shorter period of time than is possible by weighing the electrodes. See also Mercury coulometer Coulometry References references unreferenced date October 2008 Category Physical chemistry Category Electroanalytical chemistry devices Category Copper Coulometer Category Coulometers physical chemistry stub de Kupfercoulometer nl Kopercoulometer ... more details
Infobox disease Name Copper toxicity Image Kayser Fleischer ring.jpg Caption A Kayser Fleischer ring , copper deposits found in the cornea, is an indication the body is not metabolizing copper properly ... MeshID Copper toxicity refers to the consequences of an excess of copper in the body. Copper toxicity can occur from eating acid foods cooked in uncoated copper cookware, or from exposure to excess copper in drinking water or other environmental sources. Toxicity Copper in the blood exist in two ... copper causes toxicity, as it generates reactive oxygen species such as superoxide , hydrogen peroxide ... and presentation Acute symptoms of copper poisoning by ingestion include vomiting, hematemesis vomiting ... effects of copper. ref name Casarett Hemolytic anemia resulting from the treatment of burns with copper compounds is infrequent. ref name Casarett Chronic long term effects of copper exposure can damage the liver and kidneys. ref name CopperHealth Copper Health Information Summary, Environmental ... have efficient mechanisms to regulate copper stores such that they are generally protected from excess dietary copper levels. ref name CopperHealth The U.S. Environmental Protection Agency s Maximum ... Register Vol. 65, No. 8 Wednesday, January 12, 2000 Rules and Regulations. pp. 1976. ref The MCL for copper is based on the expectation that a lifetime of consuming copper in water at this level is without adverse effect gastrointestinal . The U.S EPA lists evidence that copper causes testicular cancer ... mg m sup 3 sup for copper fumes vapor generated from heating copper and 1 mg m sup 3 sup for copper dusts fine metallic copper particles and mists aerosol of soluble copper in workroom air during ... Department of Labor, Copper, Available Online at http www.osha.gov SLTC metalsheavy copper.html ref EPA cancer data The EPA lists no evidence for human cancer incidence connected with copper, and lists animal evidence linking copper to cancer as inadequate . Two studies in mice have shown no increased ... more details
Infobox mineral name Copper category Native metal boxwidth boxbgcolor image Copper 21991.jpg caption Native copper from Ray mine, Arizona specimen 5.25 x 4 x 1 cm formula Cu strunz 01.AA.05 dana 1.1.1.3 ..., quickly darkens to copper red in reflected light, pale rose habit As cubes, dodecahedra, and as tetrahexahedra ... mohs 2 3 luster Metallic streak Copper red gravity 8.95 melt fusibility diagnostic solubility ... name Copper url http webmineral.com data Copper.shtml accessdate 2009 12 04 ref ref name MinDat Mindat name Copper id 1209 accessdate 2009 12 04 ref ref name Klein Klein, Cornelis and Cornelius S. Hurlbut, Manual of Mineralogy, Wiley, 20th ed., 1985, pp 259 260 ISBN 0 471 80580 7 ref Copper , as native copper , is one of the few metal lic chemical element element s to occur in Native metal uncombined ... elements. Native copper was an important ore of copper in historic times and was used by pre historic peoples. Native copper occurs as rarely isometric cubic and octahedral crystals, but more typically ... on fresh surfaces, but typically is weathering weathered and coated with a green tarnish of copper ... hardness is 2.5 3. ref cite web url http mineral.galleries.com minerals elements copper copper.htm title Native Copper publisher Amethyst Galleries Mineral Gallery accessdate 2005 06 26 ref The mines of the Keweenaw native copper deposits of Upper Peninsula of Michigan Upper Michigan were major copper producers in the 19th and early 20th centuries, and are the largest deposits of native copper in the world. ref name michigan cite web url http www.geo.msu.edu geo333 copper.html title Michigan s Copper ... for authentication. ref Native Americans mined copper on a small scale at this and several other locations ... Schoolcraft and Seth Eastman accessdate July 17, 2011 pages 223 229 ref and evidence exists of copper ... commercial mines in the Keweenaw Peninsula which is nicknamed the Copper Country and Copper Island ... copper. Some of it was extracted by native peoples, but only one of several commercial attempts at mining ... more details
Copper proteins are proteins that contain one or more copper ions as prosthetic group s. The metal centres in the copper proteins can be classified into several types ref citation first1 Richard H. last1 ... 7 pages 2239 2314 year 1996 doi 10.1021 cr9500390 ref Type I copper centres T1Cu are characterized by a single copper atom coordinated by two histidine residues and a cysteine residue in a trigonal planar structure, and a variable axial ligand . In Plastocyanin family of copper binding proteins ... of methionine , whereas aminoacids other than methionine e.g. glutamine give rise to class II T1Cu copper ... high reduction potentials 250 mV , and strong absorption near 600 nm due to sulfur S copper ... often called blue copper proteins . This may be misleading, since some T1Cu centres also absorb around ... centres show small hyperfine splittings in the parallel region of the spectrum compared to common copper coordination compounds . Type II copper centres T2Cu exhibit a square planar coordination by N or N O ligand s. They exhibit an axial Electron spin resonance EPR spectrum with copper Hyperfine structure hyperfine splitting in the parallel region similar to that observed in regular copper coordination ... citation first Judith P. last Klinman title Mechanisms Whereby Mononuclear Copper Proteins Functionalize ... 10.1021 cr950047g . ref Type III copper centres T3Cu consist of a pair of copper centres, each coordinated ... of Dioxygen Copper Systems , Chemical Reviews 2004, 104, 1047 1076. DOI 10.1021 cr020633r . ref Binuclear Copper A centres Cu sub A sub are found in cytochrome c oxidase cytochrome c oxidase and nitrous oxide reductase EC number 1.7.99.6 . The two copper atoms are coordinated by two histidines ... year 1996 doi 10.1021 cr950046o ref Copper B centres Cu sub B sub are found in cytochrome c oxidase cytochrome c oxidase . The copper atom is coordinated by three histidines in trigonal pyramidal geometry. Tetranuclear Copper Z centre Cu sub Z sub is found in nitrous oxide reductase. The four copper ... more details
Copper bromide can refer to Copper I bromide , CuBr Copper II bromide , CuBr sub 2 sub disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ar hu R z bromid egy rtelm s t lap ... more details
Copper is one of the world s most important mineral industrial mineral s, and Africa is an important world producer. While output is traditionally dominated by Zambia , South Africa and Katanga Province in the south of the Democratic Republic of the Congo , many African nations contribute to copper extraction techniques copper production , and many African nations have undeveloped ore resources. Cobalt , another important industrial metal, is often mined in conjunction with copper. flagicon Botswana Botswana Dukwi , African Copper s Mowana Mine ref http allafrica.com stories 200812220656.html Botswana African Copper Needs 15 Million to Stay Afloat , AllAfrica, 19 December 2008 ref Ghanzi , Hana Mining ref African Business , March 2010, p67 ref also silver. flagicon Democratic Republic of the Congo Democratic Republic of the Congo Katanga Province flagicon Namibia Namibia Ongopolo Mining and Processing ... projects palabora Rio Tinto Copper Mine, Palabora, South Africa . Mining Technology. Retrieved on 2011 ... node 14223 www.miningreview.com Kilembe copper mines may re open . Beta.miningreview.com 2008 10 24 ... Minerals ref http beta.miningreview.com node 14562 www.miningreview.com First copper concentrate at Lumwana . Beta.miningreview.com 2008 12 08 . Retrieved on 2011 05 27. ref Luanshya Copper Mine Company Baluba Mulyashi copper project ref http africa.reuters.com country ZM news usnLT457949.html ... Consolidated Copper Mines Zambia Copper Investments Limited Konkola Deep Mining Project symbol ZCI on the Johannesburg Securities Exchange See also Copper extraction techniques List of countries by copper mine production Mineral industry of Africa Economy of Zambia Aluminium in Africa Cement in Africa ... reflist 2 External links http www.copper.co.za Copper Development Association Africa Journal http www.miningreview.com Mining Review Africa http www.miningtopnews.com category copper MiningTopNews Category Copper mining Category Mining in Africa ... more details
Image Copper metabolism.png thumb Normal absorption and distribution of copper. Cu copper, CP ceruloplasmin , green ATP7B carrying copper. Copper is an essential trace element that is vital to the health of all living things humans, plants, animals, and microorganisms . In humans, copper is essential ... has complex homeostatic mechanisms which attempt to ensure a constant supply of available copper, while eliminating excess copper whenever this occurs. However, like all essential elements and nutrients, too much or too little nutrition al ingestion of copper can result in a corresponding condition of copper excess or deficiency in the body, each of which has its own unique set of adverse health effects. Daily dietary standards for copper have been set by various health agencies around the world. Standards adopted by some nations recommend different copper intake levels for adults, pregnant women, infants, and children, corresponding to the varying need for copper during different stages of life. Copper deficiency and toxicity can be either of Genetics genetic or non genetic origin. The study of copper s genetic diseases , which are the focus of intense international research activity, has shed insight into how human bodies use copper, and why it is important as an essential micronutrient . The studies have also resulted in successful treatments for genetic copper excess conditions ... together to define the precise copper levels that are required for essentiality, while avoiding deficient or excess copper intakes. Results from these studies are expected to be used to fine .... Essentiality Copper is an essential trace element i.e., micronutrient that is required for plant, animal ... oxygen requiring microorganisms . Copper is incorporated into a variety of proteins and metalloenzyme .... Copper is involved in the formation of red blood cells , the absorption and utilization of iron, the metabolism ... clotting, and oxygen transport. Copper stimulates the immune system to fight infections , to repair ... more details
File Copper world production trend.svg thumb right 300px World copper production, 1900 2002 Peak copper is the point in time at which the maximum global copper production rate is reached. Since copper .... Unlike fossil fuel s, however, copper is scrap ped and reused and it has been estimated that at least 80 of all copper ever mined is still available having been repeatedly recycled . ref http www.copperinfo.com environment recycling.html ref Copper is among the most important industrial metals. Copper is used in electrical power cables, data cables, electrical equipment, automobile radiators ... pipes, and jewellery . Copper has been in use at least 10,000 years, but more than 95 of all copper ever mined and smelted has been extracted since 1900. As India and China race to catch up with the West, the copper supply chain is becoming more strained, ref name Leonard2006 cite web url http www.salon.com tech htww 2006 03 02 peak copper index.html title Peak copper? publisher Salon How the World ... prices and an increase in Metal theft copper theft . History Concern about the copper supply is not new. In 1924, noted geologist and copper mining expert Ira Joralemon warned ... the age of electricity and of copper will be short. At the intense rate of production that must come, the copper supply ... and die. ref Copper and electricity to vanish in twenty years? Engineering and Mining Journal Press 26 July 1924, v.118 n.4 p.122. ref Copper demand Total world production is about 15 million tons per year. ref Giurco, D Towards sustainable metal cycles the case of copper , page 8, 2005, http hdl.handle.net 2123 1521 ref Copper demand is increasing by more than 575,000 tons annually and accelerating ... at Yale University calculate that by 2100 global demand for copper will outstrip the amount ... copper demand. ref cite news url http www.guardian.co.uk world 2008 mar 20 internationalcrime title Deaths and disruption as price rise sees copper thefts soar work The Guardian author Dan Glaister ... more details
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