The phrase "are ineffective for" is correct and usable in written English.
It can be used to describe something that does not produce the desired effect or result in a specific context.
Example: "The new policies are ineffective for improving employee morale."
Alternatives: "are not effective for" or "fail to achieve".
Injections of vasopressin are ineffective for those with nephrogenic diabetes insipidus.
Delta hedging strategies are ineffective for hedging volatility derivatives since they require very frequent rebalancing.
Generic programs for numerical methods are ineffective for phase equilibrium calculations.
Furthermore, SAs that are ineffective for accurate recommendations are excluded automatically from the taxonomy of SAs using this method.
Storm-time EMIC waves can induce rapid pitch angle scattering, but the waves are ineffective for stochastic acceleration of elections.
Nevertheless, classical negotiation models are ineffective for supporting multi-agent multi-issue negotiations often encountered in eBusiness environment.
Levine was tired of the available drugs for depression, which have a high side effect profile and are ineffective for some patients.
But while these medications have improved the lives of some patients, they are ineffective for others, and they are woefully inadequate in treating many of the worst symptoms.
Supplements containing omega-3 fatty acids, the oils abundant in fatty fish, are ineffective for the prevention of heart disease, a large review of randomized trials has found.
Although current selective estrogen receptor modulators (SERMs) have clear advantages in the treatment of hormone-responsive breast cancer, they are ineffective for ER.
The results show that the driving restrictions are effective for short-run period, but are ineffective for long-run time period.
