Thus, the vertical force and moving speed of the AFM cantilever (0.06 N / m in vertical spring constant) was controlled at a vertical force of 5 nN at an indentation speed of 0.1 µm / s to guarantee the rupture of the filament and to partially dissect cell adhesion structures between two neighboring cells. (frogheart.ca)
(Catechism of the Catholic Church nn.1264.2515). (faith.org.uk)
As regards the presentation of the gifts themselves, Pope Benedict points out that we should not see it «simply as a kind of «interval» between the liturgy of the word and of the Eucharist... the authentic meaning of this gesture can be clearly expressed without the need for undue emphasis or complexity» (Sacramentum Caritatis nn. (faith.org.uk)