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        Research Article  
         
        ScienceAsia 9 (1983): 223-232 |doi: 10.2306/scienceasia1513-1874.1983.09.223 
          
        REDUCED DENSITY MATRICES
AND THERMO-HYDRODYNAMIC EQUATIONS OF HE II*
          
        KITT VISOOTTIVISETH
          ABSTRACT: The microscopic theory of He II has been developed, accounting for the Bose-Einstein condensation by the existence of "off-diagonal long-range order" (ODLRO) in the reduced density matrices. The derivation of a closed set of thermo-hydrodynamic equations, for the condensate and the depletion of He II in the bulk system, was thus attempted. The studies of calcium metabolism in experimentally induced diabetes provide
useful information. However, a distinction must be made between short and long term adaptation when considering changes in elements of calcium homeostasis. 
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          Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10500, Thailand 
          Recieved 16 August 1983 
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