oxygen dissociation curve
oxygen dissociation curve The S-shaped curve produced when the percentage saturation of haemoglobin with oxygen (i.e. the percentage of binding sites of haemoglobin that are occupied by oxygen molecules) is plotted against the partial pressure of oxygen (
pO
2), which is a measure of the oxygen concentration in the surrounding medium. The steep rise of the curve indicates the high affinity of haemoglobin for oxygen: a small increase in
pO
2 results in a relatively sharp increase in the percentage saturation of haemoglobin with oxygen. Therefore in the lungs, where the
pO
2 is high, the blood is rapidly saturated with oxygen. Conversely, a small drop in
pO
2 results in a large drop in percentage saturation of haemoglobin. Thus in tissues that utilize oxygen at a high rate, where the
pO
2 is low, oxygen readily dissociates from haemoglobin and is released for use by the tissues. See also
Bohr effect.
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Geniuses who plan to build a wind farm at Lake Turkana are in for a shock.(News)
Newspaper article from: Cape Times (South Africa); 2/20/2009; 700+ words
; ...landscape and the Jade Sea, Lake Turkana, is there. If there...But the huge vastness of Turkana's water is barely drinkable...Iji, sank. Then the lake began to recede, fast...receding waters of Lake Turkana, the winds off Mount...
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John Hare, the founder of the Wild Camel Protection Foundation (WCPF), is attempting to circumnavigate Lake Turkana in Kenya by camel.(Brief article)
Magazine article from: Geographical; 4/1/2006; ; 690 words
; ...Protection Foundation (WCPF), is attempting to circumnavigate Lake Turkana in Kenya by camel. He hopes that the six-week and 725-kilometre...but I don't think any foreigner has been right around the lake with camels before," said Hare.
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One tribe fired my imagination as a boy. It took me 25 years to find them. Their fate? Engulfed by catastrophe, abandoned by the world, and facing a slow death that will diminish us all Fergal Keane's compelling dispatch from the people on a long march to extinction; THE LAKE - A LAST HOPE Because of the drought, growing numbers of Turkana are turning to Lake Turkana for survival. ......
Newspaper article from: The Mail on Sunday (London, England); 11/12/2006; 700+ words
; ...bright, delicate beaded jewellery of the Turkana. One by one the women came up to me and...butt me. Among the tribes of Kenya, the Turkana are famous for their bellicosity. Like...Peter Ekai Lokoel. 'It's just the Turkana sign of welcome. It is their way of saying...
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The Scattering Time: Turkana Responses to Colonial Rule.
Magazine article from: The Historian; 6/22/1995; ; 700+ words
; ...Scattering Time is a history of the Turkana from beginnings in the Tarash Valley...between the Karamoja escarpment and Lake Turkana. The author describes the Turkanas...conducted extensive interviews with the Turkana and others in northwestern Kenya...
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Geochronology of the pre-KBS Tuff sequence, Omo Group, Turkana Basin
Magazine article from: Journal of the Geological Society; 3/1/2008; ; 700+ words
; ...itself. Geological setting The Omo-Turkana Basin is up to 500km in length...and as much as 100km wide, with Lake Turkana occupying a significant fraction...the rift is associated with Lake Turkana, the focus of subsidence, where...
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Precise ^sup 40^Ar/^sup 39^Ar geochronology for the upper Koobi Fora Formation, Turkana Basin, northern Kenya
Magazine article from: Journal of the Geological Society; 1/1/2006; ; 700+ words
; ...thick, crops out east of Lake Turkana and is part of the much...depositional system of the Omo-Turkana Basin. The upper half...currently drains into Lake Turkana, now a closed...systems. Sediments in the Turkana Basin are predominantly...
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Sequence of tuffs between the KBS Tuff and the Chari Tuff in the Turkana Basin, Kenya and Ethiopia
Magazine article from: Journal of the Geological Society; 1/1/2006; ; 700+ words
; ...reduced, and that the level of a lake that occupied the Omo-Turkana Basin at the time was low...influence on deposition in the Omo-Turkana Basin, previously shown for...1983) exposed in the Omo-Turkana Basin in northern Kenya and...
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Mechanistic model simulations of the East African climate using NCAR regional climate model: Influence of large-scale orography on the Turkana low-level jet
Magazine article from: Journal of Climate; 6/15/2001; ; 700+ words
; ...is employed to study the dynamics of the Turkana low-level jet that lies between the Ethiopian...for the observed dry conditions over the Lake Turkana basin that lies in the wider section of the Turkana channel. The role of the large-scale...
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Field angles for Kenya's famed Turkana Boy; Won't lend lions, but may swap their skulls
Newspaper article from: Chicago Sun-Times; 9/20/2007; ; 465 words
; ...said Field officials have also "been talking about Turkana Boy seriously now for the last 18 months." Discovered in 1984 near Lake Turkana in Kenya, Turkana Boy is a chinless predecessor to humans with a sloping...
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"It is better to be a refugee than a Turkana in Kakuma": revisiting the relationship between hosts and refugees in Kenya.(includes abstract in French)
Magazine article from: Refuge; 5/1/2003; ; 700+ words
; ...better to be a refugee than a Turkana in Kakuma. (1) Introduction...wars in the Horn and the Great Lakes region of Africa brought ten...nationalities to live among a people in Turkana District, Kenya, so impoverished...but by the local tribe, the Turkana (hereinafter, the hosts...
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Lake Turkana
Book article from: The Columbia Encyclopedia, Sixth Edition
Lake Turkana c.2,500 sq mi (6,475 sq km), NW Kenya and...volcanic mountains, the 170-mi- (274-km-) long lake is the focus of interior drainage and has no outlet...becoming increasingly saline. It was formerly known as Lake Rudolf.
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Turkana
Encyclopedia entry from: Encyclopedia of World Cultures
...Location. The area occupied by the Turkana people corresponds closely with the current boundaries of Turkana District in Kenya. It lies between...east by the western shoreline of Lake Turkana, and to the south by the plains...
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Lake Formation
Book article from: Water:Science and Issues
...Tectonic Activity. Many lakes have formed as a result of...movements of the Earth's crust. Lake Baikal, located in eastern...of the Siberian Platform. Lakes Tanganyika, Malawi (formerly Nyasa), Kivu, Turkana, Mobutu, Magadi, Naivasha...crustal movements influencing lake formation include ...
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Lakes
Book article from: World of Earth Science
...properties of lakes, and lake sediments often provide...climatic fluctuations. Lake basins typically fill...reservoirs. Because ponds, lakes, and inland seas are...Rift system—Lakes Turkana, Kiva, Tanganyika...Lithospheric Plates . Lake Baikal, the worlds deepest...
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largest inland lakes and seas
Book article from: World Encyclopedia
...by Akosombo Dam ( 1966 ) 3 Lake Maracaibo, in Venezuela...x2018;inland’ lake 4 Salt lakes that vary in size with rainfall Europe Lake Ladoga Russia 17,700 6800...Africa 26,000 10,000 Lake Turkana Ethiopia/Kenya 8500 3300...
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