1. Stigmergy
Who is in charge here?
Where is the Boss?
Is there a Leader anywhere in sight?
WHAT IS THE DIFFERENCE BETWEEN AN
INTERNAL SIGNAL IN THE LEADER AND
AN EXTERNAL SIGN THAT IT DISPLAYS?

3. Recently, promising microscopic approaches,
such as the cellular dynamics method, have
emerged. They have shown that Dictyostelium
is useful as a model system in biology, the
synchronization mechanism of oscillatory
production of cyclic adenosine 3',5'monophosphate in Dictyostelium is discussed
in detail to show how it is a universal feature
that can explain synchronization in other
organisms. AD - Fundamental Research Labs,
NEC Corporation, Tsukuba, Ibaraki, Japan.
s-nagano@bx.jp.nec.com FAU - Nagano, S

5. Ethylene
(C2H4 Reaction)

6. Adenosine
Caffeine

7. Adenosine
Caffeine