The phrase "at specific phases of" is correct and usable in written English.
You can use it when discussing particular stages or periods in a process, project, or development.
Example: "The research will focus on the effects of the treatment at specific phases of the clinical trial."
Alternatives: "during particular stages of" or "at distinct points in".
Potentially related forms include treatment-refractory cases, severe or atypical depression, and depression at specific phases of a woman's life (early gestation, postpartum depression, perimenopausal).
Our analyses suggested that individual VTA non-DA neurons fired preferentially at specific phases of the wheel running cycle.
By calculation of their cross-correlations (we chose the most rhythmic unit 4 as the reference), our results suggested that units 1 5 fired sequentially at specific phases of the wheel running cycle (Figure 5B).
Cells at specific phases of spreading were fixed, labeled, and imaged by confocal microscopy.
Chemical inhibitors were used to arrest cells at specific phases of cell cycle.
Further, debranching may occur more robustly in specific regions of a patch, or at specific phases of patch maturation.
This entails identifying at what specific phases of wildlife trafficking and for what purpose the Internet is used as a crime facilitator, as well as understanding the consequences that the Internet has on the way in which this criminal activity is carried out.
0.5 μM NCS increased the expression levels of CYCD3 1, Histone H4, and CYCA1 1 at specific phases but delayed the timing of expression.
Oscillators with a circadian (about 24-hr) period synchronize and co-ordinate the behavior of biological systems at all levels of biological complexity, to specific phases of the geophysical day [ 1- 7].
At seven-thirty he is in his office reading mail, and by eight he is hearing officers who present digests of staff studies on specific phases of the defence program.
Can we identify specific phases of our service that require customer preparation?
