According to Jean Piaget, estimates based on more or less explicit comparison with standard units of duration imply concrete cognitive operations that are developed only after about the age of seven or eight.
Other authorities prefer definitions based on a more concrete, positive human intervention such as propagation or cultivation (Janick 2005).
Again, known groups validity would have been best conducted based on a more concrete assessment of known fatigue, such as a patient global impression of concept (i.e. patients who categorized their fatigue as mild, moderate or severe).
Earth construction has a major expression in less developed countries, however, the mimetic temptations towards more polluting construction techniques based on reinforced concrete and fired bricks are likely to favor a change towards a clear unsustainable pattern.
To be more precise, our formalization is based on the concrete framework of constraint maintainers, proposed by Meertens, and later used by Stevens to formalize the OMG Object Management Groupp) standard bidirectional transformation language QVT-R (Query/View/Transformation - Relations).
To that end, we will more extensively detect and monitor certain passengers based on objective, concrete criteria which respect smooth border crossings, fundamental liberties and security requirements".
In this way, the Obama administration will be spared the daunting task of evaluating individual schools, but can still allocate grants more accurately based on concrete educational progress.
It will be interesting to see what he might do with material relating more closely to his own time and place – and based on a concrete rather than an abstract noun.
Mayor Bloomberg, Commissioner Ray Kelly, and others say that the stops are based on concrete crime statistics and nothing more.
A detailed inventory of these areas, based on sound and concrete criteria, and more detailed estimations of the level of fragmentation by roads in Europe shall form the basis for a proper assessment of the magnitude of the problem.
