These previously unsuspected massive modifications of Earth's past environments are, of necessity, reflected in the evolutionary history of life.
The obligate intracellular habitat of rickettsiae may offer such a stable environment that the necessity of environmental gene regulation is much less than that of facultative pathogens.
Most studies investigating food environments have been cross-sectional out of necessity; longitudinal studies assessing a causal link between food environment and diet are rare [ 25, 28].
Her whole career was devoted to testing ways to "break through this film of the abstract // without wounding myself or you," as she wrote in "Cartographies of Silence" (1975), a poem about a lesbian affair and about the role that women's voices play in an environment where secrecy and code have of necessity taken on their own forms of power and beauty.
"We felt that our living environments by necessity should be part of the conversation," they continue, "as we actively move towards an understanding of the human machine ecologies that are forming around us".
The more sensor data increases, the more potentiality for managing indoor environment and necessity to manage and represent amount of them grow at the same time.
"The competitive environment underscores the necessity of US Airways becoming a part of a larger network," its chairman, Stephen M. Wolf, said in a statement.
Added Chairman Stephen Wolf Stephen Wolf : "The competitive environment underscores the necessity of US Airways becoming part of a larger network, and thus we remain fully focused on our merger with United Airlines".
In what are now desert environments, increased dependence on the rivers may have proved as much a matter of necessity as of choice.
Real-time experimentation carried on this environment shows the necessity of high prediction and control horizons setting to achieve acceptable comfort performance.
These experiments mainly show that CSCs can initiate tumor growth upon transfer, which could reflect enhanced adherence, survival or growth in a foreign environment, but the necessity of CSCs to maintain tumor growth is unclear.
