It has shown that when HIV-1 provirus integrated in a face to face position with the host gene promoter (i.e., in a convergent position), the assembly of the initiation complex necessary for transcription is blocked by promoter occlusion resulting in silencing of the HIV-1 promoter [ 50].
Bonobos sometimes mate in a face-to-face position, which is rarely seen among chimpanzees.
Her weighing in at 100-pounds wet meant that we were able to try a face-to-face position in which I stood and she wrapped her legs around my waist.
Wee! Wee!' all the way home". The experimenter then instructed the mother to turn away and then to return to the face-to-face position, but not to react to her baby in any way whatsoever -- to keep a still (or frozen) face.
The criterion was solely whether her infant alone remained present within arm's range as well as within the visual range of the target animal throughout a given episode, both animals being situated in a face-to-face position, or whether no animals remained present within such range throughout another given episode.
After each insertion the male returns to a face-to-face position with the female, grabbing the gift in the chelicerae [ 21].
Mating duration was measured from the beginning of the first to the end of the last pedipalp insertion and included the time the male and female were in face-to-face position and handled the gift.
However, they are not positioned face to face due to the constraint imposed by the short loop connecting them.
Throughout this lively but often difficult book the author repeatedly seeks to blend together, or at any rate bring face to face, these apparently antithetical positions.
"Some of us wrote to you on some of these issues in November, asking you either to act then or to meet us face to face to explain your position.
In case of severe injury with restricted position, face to face intubation is a reasonable choice.
