The phrase "abrupt spike" is correct and usable in written English.
It can be used to describe a sudden and significant increase in something, such as data, prices, or activity levels.
Example: "The stock market experienced an abrupt spike following the announcement of the new policy."
Alternatives: "sudden surge" or "sharp increase."
Throughout Eastern Europe and Central Asia, there has been an abrupt spike in H.I.V. infection rates.
Instead of actually selling the huge portfolio of mortgage securities, which some Fed officials fear would cause an abrupt spike in long-term interest rates, the central bank would essentially lend them out and promise to buy them back later.
In the UK a graph from the London Network Access Point (LONAP), which provides services for ISPs across Britain showed an abrupt spike at 6pm as the download become available.
Interestingly, the 1.0 and 1.5 mM Cu II) grown cultures (2 out of 3 biological replicates) displayed an abrupt spike in intracellular Cu II) levels during transition from late exponential growth into stationary phase (∼31 hr).
It is interesting to note that these analyses highlight that the increase in actin flow speed occurred in two phases; there was an abrupt spike immediately upon lamellae separation lasting ∼20 s (that coincided with the duration of lamella recoil), followed by an additional increase during cellular repolarization.
Or, it could lead to abrupt spikes in interest rates as American debtors are forced to pay whatever it takes to get the loans they need.
Sugary foods and drinks, white bread and other processed carbohydrates that are known to cause abrupt spikes and falls in blood sugar appear to stimulate parts of the brain involved in hunger, craving and reward, the new research shows.
This abrupt change in spiking cannot simply reflect homeostatic changes but instead suggests that the drop in AgRP neuron spiking reflects a reduction in the drive to seek food at the initiation of food consumption.
The simulation suggests that the abrupt transition from single spike (Figure 6Cb) to complex burst firing (Figure 6Cc) is because there exists a threshold above which CaV3.3 channels are self-facilitating.
A useful approach for detecting abrupt changes in the spike activity in real time is given by Ratnam et al. (2003).
We first showed that in vitro stellate cells do indeed exhibit and abrupt transition to fast spiking.
