But, an analyst based in Damascus argued, repression may be intensifying instability.
In addition, he says, Zawahiri will want to turn the wave of unrest in the Middle East to al-Qaeda's advantage - perhaps building more of a power base in Yemen and working to intensify the instability there.
The differences in the tumor phenotype of the MSH2 and MSH6 deficient mice, and the fact that they have some different functional domains, raises the possibility that disruption of both MSH2 and MSH6 would intensify genomic instability in B or T cells and further impair SHM and CSR.
Paul Polman warned of "high volatility" and "intensifying geopolitical instability" in the world.
It predicts eight prolonged (>192 kyr) eras of intensified habitat instability (high variability stages) in which hominin evolutionary innovations are likely to have occurred, potentially by variability selection.
Erdogan's nationalist zealotry is dividing the country and could potentially lead to widespread violence among the Turks, while further intensifying regional instability.
In May, when Barack Obama and Hamid Karzai signed an agreement that allows for American troops to stay in Afghanistan beyond 2014, Iran's foreign ministry warned that the pact "will intensify insecurity and instability in Afghanistan".
These effects may be related to the generation of secondary leukaemia in some patients, and may also intensify the genetic instability of tumours and increase resistance to treatment.
While prospective tourists with paid-for trips will mostly travel as planned, new bookings may dwindle - threatening the livelihoods of thousands, and intensifying the national instability.
As can be seen, Yemeni children are facing a prolonged critical situation, which continues to be intensified by political instability, multiple local conflicts and chronic underdevelopment.
