"have positive effect" is a correct and usable phrase in written English.
It means that something has a beneficial impact or influence on something else. Example: The new policies implemented by the government have had a positive effect on the economy, resulting in increased job opportunities and a boost in GDP growth.
This assumption is based on previous studies that have demonstrated that the local folding along the mRNA affects various aspects of gene expression; specifically, it was suggested that in certain contexts and positions along the transcript, both strong and weak mRNA folding can have positive effect on gene expression and organismal fitness [ 12, 45, 46].
Both activity have positive effect on our brains.
Results show that all of these parameters have positive effect on system exergy efficiency.
The results show that two leadership styles and innovativeness have positive effect on business performance.
Ideally, IPS show high student acceptance and can have positive effect on knowledge gain.
It recommended governments examine data which suggested that addressing a single issue with a whole-of-government approach could have positive effect on a number of other problems.
Co90 sample with Ag and Pt randomly distributing within the Co matrix has high CNCo-Co, which does not have positive effect on the ORR performance.
All the significant main and interaction effects on extraction of Mn, Fe and Al have positive effect, except oxalic acid concentration and time interaction for extraction of Al.
Surface modification of porous TiO2 photoanode through pulse oxidative hydrolysis turned out to have positive effect on the photovoltaic characteristics of dye-sensitized solar cell (DSSC).
Moreover, the PSi nanostructure and the release of silicic acid have positive effect on precursor cell osteodifferentiation and mineralized matrix formation.
Biological tests found that plasma treatment have positive effect on cells adhesion and proliferation cells and affects the size of cell's adhesion area.
