The phrase "a small protraction" is correct and usable in written English.
It can be used in contexts where you are referring to a slight extension or delay in time or space.
Example: "The project experienced a small protraction due to unforeseen circumstances, but we are still on track to meet our deadline."
Alternatives: "a slight delay" or "a minor extension".
A single 5-ms light flash delivered to wS1 robustly evoked a small retraction of the contralateral whisker, following which the animal initiated whisking, while a 5-ms light flash delivered to wM1 caused a small protraction (wS1, −1.4 ± 0.4°, n = 6 mice; wM1, 1.9 ± 0.4°, n = 5 mice; P = 10−4, Student's t-test for unpaired observations; Fig. 1E and F).
For simplicity, Kaneko [22] and Solomon et al. [23] work with expressions valid for small protraction angles (θ<∼14°), an approximation that appears to be valid for rat whisking behavior [4], [31].
Bland Altman analysis demonstrated a small bias and relatively wider limits for the shoulder protraction/retraction and arm angles.
The Bland Altman method revealed a small bias of -1.12° for the cervical angle, -1.56° for the head angle, -1.98° for the shoulder protraction/retraction angle, -3.76° for the arm angle and -1.12° for the thoracic angle.
A smaller stake means a smaller return.
A tapered whisker would flick past the object with a protraction angle of ∼20°, while an untapered whisker would require a protraction angle larger than 60°.
In a study with protraction facemask [10], A point was found to move forward by an average of 1.8 mm over a 6-month period.
The push-up plus (PUP) exercise, a commonly prescribed push-up variant to target scapular muscle stabilizers, is characterized by a standard push-up motion with a protraction of the scapula upon completion of the push-up repetition [ 8].
Insulin degludec, a basal insulin analogue, uses a novel protraction mechanism, resulting in a flat, stable profile and a duration of action greater than 42 h.
The so called active exploratory whisking is a combination of protraction followed by retraction movement within an antero-posterior horizontal plane, in air and over objects at frequencies of 4 to 15 Hz recorded by electrodes [ 2, 3, 4].
Intravenous oxytocin was administered when a protraction disorder of labor was identified.
