The phrase "at a weak level" is correct and usable in written English.
It can be used to describe a situation, performance, or understanding that is not strong or effective.
Example: "The team's performance was at a weak level, which contributed to their loss in the tournament."
Alternatives: "at a low level" or "at a minimal level".
Fresh CD4+CD25+ T cells also expressed surface LAP at a weak level (Figure 2A).
Therefore, we conclude that some cohesive ties were maintained, albeit at a weak level.
Under the assumption that candidate genes for Pl ARG are constitutively expressed at a weak level in non-inoculated plants [ 14, 15], seedlings were grown in the greenhouse at a 14 h light (18°C /10 h dark (16°C) cycle for eight days.
CD16 was expressed on a DDC subpopulation, but also, at a weaker level, on LC (Figure 4D).
VvSUC11 and VvSUC12 are detected in all organs but at a weaker level and VvSUT2 is the less expressed sucrose transporter being only weakly detected in young leaves and roots.
In ap-Gal4, UAS-RFP, UAS-hh-N discs, ectopic En is detected throughout the anteroventral quadrant of the wing pouch (Fig. 6C C″), albeit at a weaker level compared to Hh-WT discs.
Furthermore, we show that the ectopic co-expression of dpn with E spl m3 or E spl mγ could reproduce, although at a weaker level, many of the Notch over-expression effects, whereas the simultaneous loss of function of dpn and E spl)C mimics most of the effects produced by the Notch signalling insufficiency.
β-tubulin III was present throughout the cytoplasm and along neurite branches/extensions of both proliferating and differentiated N-type cells; expression did not appear to change after 9 cRA-induced differentiation (Fig. 2B, E). β-tubulin III was also present throughout the cytoplasm of S-type cells, albeit at a weaker level compared to N-type cells (Fig. 2C, F).
"Housing market activity remains at a very weak level that historically has been associated with falling house prices, despite rising modestly from their lows earlier this year".
The disturbance moved west-northwest at below a weak upper-level high, becoming the third tropical depression of the 1986 season on June 17.
We found that the expression pattern of a pWUS GUS reporter in the wus-1 mutant showed a patchy pattern at very weak levels compared to the wild type (Fig. 5B).
