In rural KwaZulu Natal, the economic changes that have destabilized marital relationships have led sibling groups to become an increasingly important source of cooperation, evidenced by a measurable increase in co-residency patterns and cooperative behavior outside of the natal household and compound (Townsend et al. 2002).
These reasons explain why only a few biologists, like Wilson and E. O. Wilson (no relation), advocate group selection as the evolutionary source of cooperation.
While acknowledging challenges, UN Deputy Secretary General Jan Eliasson wrote in the January 2015 issue of Nature, "We must not lose sight of the opportunities that water offers as a source of cooperation.
The results show evidence of conditional complementarity in product innovation performance between external and internal knowledge sources in absence of cooperation and of conditional substitute relationship between external and cooperation knowledge sources in presence of internal source.
One of the topics that Mr. Netanyahu has frequently mentioned as a source of future cooperation among the states of Israel, Jordan and a future Palestine is Christian pilgrimage.
In their work practice they must cope with two modes of software production: one based on proprietary, closed work situations, the other built around open source community ways of cooperation and knowledge sharing.
In short, there are a lot of sources of tension and rivalry in contemporary international politics, but also important sources of restraint -- and of cooperation, against terrorism in particular, but also proliferation and threats to trade.
The Addis Agenda includes more than 100 concrete measures, addressing all sources of financing, and covering cooperation on issues ranging from technology, science, innovation, trade and helping developing countries strengthen their systems and institutions, the UN said.
transforms the entire border region into an instrument of cooperation, a source of conflict, a national security issue, and an environmental concern.
More specially, in the case of cooperation, the source utility is the satisfaction measure achieved where cooperation subtracts the total price paid to the BS and the relay.
