The phrase "as occurs during" is correct and usable in written English.
It can be used to describe an event or action that takes place at the same time as another event or action.
Example: "The symptoms may worsen as occurs during periods of high stress."
Alternatives: "as happens during" or "as takes place during".
Because the hormones in pills stop the monthly release of an egg and the buildup of the uterine lining, there is no need for the lining to shed — as occurs during true menstruation.
Even greater pressures and heat from movements of the Earth's crust (as occurs during mountain building), and occasionally from igneous intrusion, cause the transformation of lignite to bituminous and anthracite coal.
In order to study the effect of a disturbance on a supersaturated system (as occurs during secondary nucleation), the kinetics of the nucleation process has been simulated.
Moreover, different permutations of phosphatidylinositol 4-kinase isozymes may be required for a single cellular function such as occurs during distinct stages of GPCR signalling and in Golgi to lysosome trafficking.
A form of varicose vein, a hemorrhoid may develop from anal infection or from increase in intra-abdominal pressure, such as occurs during pregnancy, while lifting a heavy object, or while straining at stool.
However, in theory polymer solutions have unfavorable rheological properties concerning preferential flow as occurs during channeling (AlSofi et al. 2009).
This is about 100 times faster than separation by condensation using adiabatic cooling as occurs during temperature distillation using a demethanizer column.
Furthermore, multiple elemental cycles can be linked via photoreactions that directly affect both elements, as occurs during the concurrent oxidation of organic matter and reduction of iron [92].
This study characterizes the sensitivity and accuracy of a non-invasive microwave radiometric thermometer intended for monitoring body core temperature directly in brain to assist rapid recovery from hypothermia such as occurs during surgical procedures.
In contrast, in patients with type 2 diabetes mellitus (T2DM), endogenous insulin secretion may be insufficient to maintain glucose homeostasis during additional, stress-induced insulin resistance as occurs during critical illness.
Haptoglobin binds circulating, toxic, free hemoglobin (Hb) released during intravascular haemolysis – such as occurs during malarial infections.
