"during phd" is correct and usable in written English.
For example, you could use it in a sentence such as: "I worked on my dissertation during my PhD."
We next addressed the accuracy of homeostatic signaling during PHD.
Therefore, we asked whether there is an opposing decrease in presynaptic calcium during PHD.
The magnitude of the decrease in calcium channel abundance and presynaptic calcium influx should cause a much larger decrease in quantal content that what we observe during PHD.
Based upon these considerations, we argue that our measurements of decreased calcium channel number and decreased calcium influx are an accurate reflection of what is happening at the active zone during PHD.
Even though our measurements of calcium channel number and calcium influx are internally consistent, and our measurements of quantal content during PHD corroborate prior publications, there remains a discrepancy.
Though he described the Hyderabad visit as "my epiphany, when the bits of my life came together", the Damascene moment, he said, occurred much earlier at the Institute of Education in London when, during PhD studies, he read EG West's Education and the State, a sacred text for free marketeers.
It was mainly due to the addition of sodium hydroxide and sulfuric acid during pH adjustment and pH control during the enzymatic treatment (Chen et al. 2012).
It was shown that the new sensor with integrated reference NR can be utilized for real-time error monitoring during pH sensing [6].
The finger-like DII contains a fusion loop (FL) that is inserted into the host cell endosomal membrane during pH-dependent conformational changes that drive fusion.
Further obstacles of the previously applied medium were the nitrogen source NH4Cl, which leads to an unnecessary accumulation of NaCl during pH control with NaOH, and the chelating agent EDTA, which is detrimental to the environment (Oviedo and Rodríguez 2003).
Gene expression of mRNA encoding TgAaaH1&2 during pH shock induced stage conversion from the tachyzoite to the bradyzoite life cycle stages was monitored.
