ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Nielsen's method has a disadvantage in that each photograph of the insects is compared with its predecessor to give an activity value based upon the number of insects which have changed position in the interval. Each number obtained from such a comparison contains within it an unknown factor, ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/183625a0
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