Manganin tubular shunt for measuring large current pulses

1971 ◽  
Vol 14 (7) ◽  
pp. 1042-1043
Author(s):  
S. R. Osmolovskii ◽  
I. I. Ushakov ◽  
Yu. V. Kraev
Keyword(s):  
1991 ◽  
Vol 27 (5) ◽  
pp. 4101-4104
Author(s):  
M.L. Hodgdon ◽  
R.S. Hixson ◽  
W.M. Parsons

1989 ◽  
Vol 25 (11) ◽  
pp. 728-730 ◽  
Author(s):  
K. Tsubaki ◽  
Y. Tokura ◽  
T. Fukui ◽  
H. Saito ◽  
N. Susa

1961 ◽  
Vol 201 (5) ◽  
pp. 873-880 ◽  
Author(s):  
T. Hoshiko ◽  
Nick Sperelakis

In frog ventricular strips bathed in Ca-free Ringer's solution containing 6–30 mm/liter Mg and treated with conditioning current pulses, propagation became impaired. An exaggerated foot, or prepotential, was consistently more prominent when the conditioned strip was stimulated from one end than from the other. Occasionally a prepotential in isolation alternated with a prepotential plus action potential response. After further treatment with current pulses, propagation failed in the direction of negative current flow. Thresholds of impaled cells were identical. Bidirectional propagation was restored in Ringer's solution. Conditioning pulses of reversed polarity induced unidirectional propagation in the reverse direction. Propagation in frog sartorius muscle was not blocked under similar conditions. Prepotentials and unidirectional propagation may be explained by junctional transmission from cell to cell.


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