One hypothesis proposes that long axonal tracts might depend on glial cells for the demanding metabolic costs of rapidly conducting action potentials (Nave, 2010).
Axons that are not properly insulated by the myelin sheath would be less efficient at conducting action potentials and require more energy resources than normal.
Voltage-gated sodium channels are transmembrane proteins that allow fast influx of sodium ions into excitable cells in response to membrane depolarization, and are responsible, among other functions, for generating and conducting action potentials (reviewed in Ogata & Ohishi 2002).
Moreover, analysts regard the new taped message believed to be from Osama bin Laden as a summons to his followers, and perhaps to new sympathizers, to conduct actions against the American targets in response to the possible war in Iraq.
It can conduct actions more quickly and directly.
Eight individuals participated in one single year, 3 individuals in two years and 11 individuals conducted actions in all 3 years (Table 2).
The second task is on building capacity of teachers to conduct action research.
It is believed that the opportunity to conduct action research helps pre-service teachers develop their content-specific pedagogy.
In addition, educational practitioners are encouraged to conduct action research, an agenda which has been established by the MOE since 1999.
We have conducted action research in an industry-academia collaboration between the GESSI research group and everis, a multinational IT consulting firm based in Spain.
