The phrase "decreasing tendency in" is grammatically correct and can be used in written English.
It is typically used to describe a pattern or trend of something gradually decreasing over time. Example sentence: "There has been a decreasing tendency in the number of students enrolling in the science program over the past five years."
The intensity of methoxyl group at 1425/cm showed a decreasing tendency in all the hot-washing samples.
Rhizophora stylosa and K. obovata exhibited a decreasing tendency in new leaf production, when the production of reproductive organs was at a maximum (Kamruzzaman et al. [2012b]).
Observations from both injection tests and site operation indicate a decreasing tendency in the initiation pressure and an increasing injectivity over the years, particularly for the uppermost Liujiagou sandstone.
A similar result was also reported by Mekasha et al. (2013) for Kulumsa station where it showed a decreasing tendency in daily minimum temperature during a similar study period.
These results confirmed that natural driving forces did not affect flow discharge changes and the observed decreasing tendency in flow discharge at the downstream stations was due to 15 Khordad Dam, and at the upstream stations due to diversion/storage dams.
However, the incidence of disease caused by serogroup C N. meningitidis showed a decreasing tendency in children aged less than 12 years throughout the study period.
The c-Met protein overexpression was significantly correlated with well differentiated grade and showed decreased tendency in metastatic tumor.
Contrary to the results of PUFAs, those of docosahexaenoic acid (22 6n-3 22 6n-3 a decreashowedndency in the GH transgenic fish.
PQS and dual antiplatelets showed a decreased tendency in PAgT, thrombosis time in vivo, thrombus length, wet and dry weight in vitro, TXB2 concentration, and an increased tendency in 6-keto-PGF1 α concentration compared with dual antiplatelets.
Rats in PQS + dual antiplatelets group showed a decreased tendency in thrombosis time in vivo (P = 0.405), thrombus length (P = 0.817), and wet and dry weight (P = 0.725 and P = 0.861, resp). in vitro as well, but no significant difference was observed compared with dual antiplatelets group (see Figures 5 and 6).
We found that in situ PGI/II ratios also showed a decreased tendency in the sequence of NOR/GS- > GA- > GC, showed corresponding average level of 1.0/1.0, 0.8 and 0 (All the IRS of PGI and PGII staining in GC tissue were zero).
