ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] It was found that the spring stimulus depended on the simultaneous presence of two substances, of which the first proved to be calcium (Ca++), occurring in amounts sufficient to give a level of approximately 5 x 10-* M in a medium containing 5 g/1. crude glucose. Calcium was already known to ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/197723a0
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