The phrase "a very weak activity" is correct and usable in written English.
It can be used to describe an activity that lacks strength, intensity, or effectiveness in a particular context.
Example: "The training session was considered a very weak activity, failing to engage the participants or provide any real value."
Alternatives: "a feeble activity" or "an ineffective activity."
The results of these tests (Table 1) showed that the dichloromethane extract expressed a very weak activity while the methanol and aqueous extracts showed an interesting antibacterial activity especially against Gram positive bacteria (MIC values 0.50-0.80 mg/ml), and a weaker antifungal activity (MIC values 3.00 - 5.95 mg/ml).
We did not detect activity for other members of the Rad27/FEN-1 nuclease family, Exo1, Din7 and Rad2 in the pools screened, and only a very weak activity was detected for the individual strain expressing Exo1 that was grown and processed separately (data not shown).
Group B, limited to the essential oil of plant harvested in Dhrea Ben Jouder, presented a moderate activity on mycetes strains and a very weak activity against yeasts.
Glibenclamide used as positive control exhibited the highest activity with a final decrease of 43.21% on day 14, followed by S. oleraceus at 150 mg/kg (39.40%), P. nitida at 300 mg/kg (38.48%) 150 mg/kg (29.62%), while S. oleraceus at 300 mg/kg instead showed a very weak activity, with 5.91% reduction only.
Phase transitions in recognition and recall are initiated at null spikes in the presence of an input signal, owing to the high signal-to-noise ratio that facilitates capture of cortex by an attractor, even by very weak activity that is typically evoked by a conditioned stimulus.
In a program directed toward identifying novel chemical probes for Hsp90, we found N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene N- 4-hydroxy-3- 2-hydroxynaphthalene-1-yl phenyl benzene
In the absence of lead ions, the 17E had very weak activity towards a fluorogenic RNA-containing substrate labeled with FRET partners.
Cell extracts showed very weak activity in a panel of bioassays relative to extracts from Pfiesteria-laden aquarium water, indicating that the putative toxin(s) is preferentially released from the cells (Moeller et al. 2001).
However, moderate gelatinolytic activity of the secreted latent form of MMP-2 could be identified by gelatin zymography, whereas its active form showed very weak activity.
Revenue from its core corporate and investment banking activities dropped almost 37 percent, to 1.2 billion euros, the result of "a challenging environment in the debt markets, with very weak activity in the primary market especially in Europe, and the effects of the European sovereign debt crisis on secondary markets".
As shown in Figure 1A, although, MMP-9 had very weak activity, and MMP-2 had a high secretion level in the control condition media, treatment with TNF-α increased the level of MMP-9 secretion, but had no effect on the level of MMP-2 secretion.
