The phrase "a decrease in activities" is correct and usable in written English.
It can be used when discussing a reduction in the number or intensity of actions or tasks being performed.
Example: "The recent economic downturn has led to a decrease in activities across various sectors."
Alternatives: "a reduction in activities" or "a decline in activities".
Inactivation of Wnt signaling by LEF-1-ΔL reduced the expression of CXCR4 in colon cell lines, which may lead to a decrease in activities such as migration, adhesion and survival.
A recent Swiss study among 10,199 nursing home residents (70% women, 74% aged 80 years and above) observed a decrease in activities of daily living (ADL) of 35% and an increase in ADL of almost 14% among residents, within a period of median 6 months (SD 3 months) [ 12].
Surveys of businesses are also gloomier, signalling a decrease in activity across services, manufacturing and construction since the referendum on 23 June.
Previous studies had revealed that the suppression of memories is linked to a decrease in activity in the hippocampus - the area of the brain involved with making new memories and retrieving old ones.
A decrease in activity was observed at the two measuring points on day 9.
Ageing the initial precipitate led to a decrease in activity and also decreased the selectivity towards hydrocarbons.
For the VO2+/VO+2 reaction, however, a decrease in activity for an increase in amount of functional groups was observed.
Further increase in temperature (to 65 °C) resulted in a decrease in activity and M n as a consequence of dominant elimination reaction.
Compared to PKM2WT, PKM2R399E showed a decrease in activity in the absence or presence of FBP, with a kcat/Km of 0.6 or 1.8, respectively.
The result was in accordance with Benjakul et al. ([2005]) who reported a decrease in activity of PPO from kuruma prawn with increasing concentrations of copper ion.
