Elastic Constants of Ammonium Chloride near the Lambda Point

1963 ◽  
Vol 39 (11) ◽  
pp. 2874-2880 ◽  
Author(s):  
Carl W. Garland ◽  
Joseph S. Jones
Keyword(s):  
Ammonium Chloride ◽  
Elastic Constants ◽  
Lambda Point

ELASTIC CONSTANTS OF IRON IN THE VICINITY OF THE CURIE POINT

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-415-C1-416 ◽  
Author(s):  
L. ALBERTS ◽  
M. BOHLMANN ◽  
H. L. ALBERTS
Keyword(s):  
Elastic Constants ◽  
Curie Point

TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF THE ELASTIC CONSTANTS IN Nd3Se4

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-461-C8-462 ◽  
Author(s):  
H. Fütterer ◽  
T. Yohannes ◽  
H. Bach ◽  
J. Pelzl ◽  
K. Nahm ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Elastic Constants ◽  
Magnetic Field Dependence

ALDOSTERONE STIMULATION IN VITRO

1965 ◽  
Vol 50 (2) ◽  
pp. 301-309 ◽  
Author(s):  
Jürg Müller
Keyword(s):  
Ammonium Chloride ◽  
Human Urine ◽  
Incubation Medium ◽  
The Other ◽  
Ammonium Ions ◽  
Response Curves ◽  
Urine Extract ◽  
Similar Dose ◽  
Aldosterone Production

ABSTRACT An extract of human urine, which was previously shown to stimulate aldosterone production by rat adrenal sections, was further purified. Evidence was obtained that its aldosterone-stimulating effect was due to the presence of ammonium ions. Addition of ammonium chloride and of urine extract to the incubation medium caused identical increases in aldosterone production in vitro. In addition to ammonium ions, rubidium and caesium ions also stimulated aldosterone production up to 250% that of control values without a significant effect on corticosterone production. Similar dose-response curves were obtained when increasing concentrations of potassium, ammonium, rubidium and caesium ions were tested. Aldosterone production was maximal at concentrations of 7 mval/1 and was significantly lower at higher concentrations. When ammonium chloride and ACTH were simultaneously added to the incubation medium, the production of aldosterone and of corticosterone was lower than with ACTH alone. On the other hand, the stimulating activity on aldosterone and corticosterone production by »TPN« (NADP) and glucose-6-phosphate was enhanced by the simultaneous addition of ammonium chloride.

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