Existence of an Exchange Equilibrium under Price Rigidities

1975 ◽  
Vol 16 (2) ◽  
pp. 301 ◽  
Author(s):  
Jacques H. Dreze
2017 ◽  
Vol 68 (8) ◽  
pp. 1726-1731
Author(s):  
Nicoleta Mirela Marin ◽  
Luoana Florentina Pascu ◽  
Ioana Stanculescu ◽  
Ovidiu Iordache ◽  
Denisa Jianu ◽  
...  

This paper recommends maize stalk as a cheap natural ion exchanger. Ion exchange equilibrium was studied using thermodynamic and kinetic models. The results showed a high selectivity towards cationic species of antimony (III), molybdenum (VI), lead (II) and arsenium (III). Waste waters and sediments from tailing ponds samples were analysed.


2007 ◽  
Vol 28 (6) ◽  
pp. 619-631
Author(s):  
Chris Tsoukis ◽  
Naveed Naqvi
Keyword(s):  

AIChE Journal ◽  
1998 ◽  
Vol 44 (11) ◽  
pp. 2399-2409 ◽  
Author(s):  
J. C. Bosma ◽  
J. A. Wesselingh

1976 ◽  
Vol 156 (3) ◽  
pp. 577-583 ◽  
Author(s):  
B F Cameron ◽  
P E Smariga

Under exchange conditions (no net increase in calcium), erythrocytes incubated in isoosmotic phosphate-buffered saline have an exchangeable calcium pool comprising about 10% of the total erythrocyte calcium. This pool reaches exchange equilibrium, for either inward-directed or outward-directed transfer of the 45Ca-exchange label, with a half-time of about 20 min. The uptake of Ca2+ requires phosphate, even under hypo-osmotic conditions, where the calcium loading expected as the cells swell is obtained only when phosphate is present. The phosphate requirement is not due to Ca2+ transport as a phosphate salt. This exchangeable-calcium pool is also present in sickle-cell-anemia erythrocytes, and comprises a similar proportion of total cellular calcium.


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