Comments on Extensions of the Allosteric Model for Haemoglobin

RECENTLY Edelstein¹ has concluded on the basis of a numerical analysis that the sequential model as formulated by Koshland, Nemethy and Filmer (KNF)² describes the oxygen binding curves of a number of species of human haemoglobin less well than does the two-state allosteric model of Monod, Wyman and Changeux (MWC)³. This communication demonstrates that Edelstein's analysis is incomplete and that extension of his analysis reveals that no such conclusion can be drawn from the data considered.     

中澳之间迁徙■鹬类和燕鸥类的环志介绍

From Australia to Asia (China)，the main species of the migratory bird are the waders and terns. In Oct. 1999，an invitation was extended by Dr. Clive Minton of the chairman of the Victorian Wader Study Group (VWSG) to catch and band waders and terns at Sandy Point，Swan Bay，Swan Island，Anderson Inlet/Inverloch，Phillip Island，Mud Islands，Geelong and Werribee and so on. The paper summarizes the methods (catch，bio-metric data，banding，recoveries，flagging，satellite tracking，data analysis on computer，fox control et al.)and results (species of wader and tern，number of banding from 1975 to 1999，calculate the minimum age，breeding success，age of first breeding，levels of fat deposits，molt，the distance of moved) and discuss. The total 141 787 waders，about 35 species (from 1975 to 1999) and 6 057 chicks and adults of terns，about 7-9 species (1998-1999) were captured and banded by the Victorian Wader Study Group.