The experimental data presented shows that DL constitutes a
phenomenon, the interpretation of which appears to be anything but simple.
In fact up to now we are far to have a complete understanding of the origin
and the role which this phenomenon plays within living organisms.
On the other side some of the results presented here (for example the
I vs N relations, or the dependence of the DL on the temperature) renders
it rather improbable that it is possible to explain the phenomenon through
an approach of the mechanistic type , which sees the DL as a result of
a sum of microscopic about independents subphenomena describable in terms
of a series of biochemical processes unrelated to living systems.
From the whole, it emerges that, even if not through the clear structure
of a mathematical formalization of the phenomenon, an intimate correlation
exists between the state of the system and the characteristics of the DL,
or rather if one prefers between the fields and structures internal to
the system and electromagnetic fields measurable outside it.
We find ourselves therefore with an interesting phenomenon, not only
from the point of view of the wide possibility of applications but above
all because it gives us the possibility to take a deep look into the biophysics
of living organisms. The full comprehension and formalization of that which
this look allows us, constitutes a new exciting challenge.