centration


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centration

(sĕn″trā′shŭn)
The ability of the preschool child to focus or center attention on only one aspect or characteristic of a situation at a time.
References in periodicals archive ?
Rapid global variations in methane gas centration will be used as dating ties for these synchronisations.
L'auteur preconise une organisation coherente de services diversifies, en mettant a contribution les expertises de chacun et en gardant une centration sur les besoins de la personne et ses caracteristiques singulieres.
When dispensing such lenses the monocular pupillary distance (PD) and the face form angle (dihedral angle) are required to ensure exact centration.
Soils tain the largest reservoir of global terrestrial carbon so even small fractional changes in total soil carbon cycling could have significant impacts on the centration of atmospheric carbon dioxide.
To measure this, mark the second lens at the ordered centration distance, place them back onto the focimeter with this mark centred and read the power
A majority of lenses orientated at the zero position, orientation position was stable over time, and lenses showed acceptable centration and movement.
1) Due to differential negative effects on lens centration, there is also relatively more tolerance on the magnitude of 'with the rule' corneal astigmatism compared with 'against the rule' cylinder (see Table 1).