The phrase "achieve a negative" is correct and usable in written English.
It can be used in contexts where one is discussing the attainment of a negative result or outcome, often in fields like research, statistics, or personal goals.
Example: "After several experiments, we were able to achieve a negative result, indicating that the hypothesis was incorrect."
Alternatives: "obtain a negative" or "reach a negative outcome".
According to Eq. (1) and (2), one can assume that cladding modes with very low effective refractive index can achieve a negative axial strain sensitivity.
The surfactant system was modified again to achieve a negative slope in the activity diagram; the preflush was modified to not have any alkali.
Dysprosium has been used as a slow neutron absorber in the fuel assembly of Advanced Heavy Water Reactor AHWRR) to achieve a negative coolant void reactivity.
Through a sensitivity study of fuel enrichment, type of burnable absorber, and moderator to fuel volume ratio, a design strategy for the CANDU reactor was suggested in order to achieve a negative coolant void reactivity even for the checkerboard voiding case.
To achieve a negative index with a small loss, a negative Real(μeff) is required.
Therefore, in order to achieve a negative phase coupling, i.e., (exp ( - i phi)), between two NN cavities, the latter must be physically connected via a metamaterial element.
After a large bust, however, the necessary interest rate may be negative, and the difficulty of achieving a negative interest rate may lead to a deep downturn and a weak recovery.
The microstructural architecture for a material that achieves a negative Poisson's ratio as well as a hand-actuated two degree of freedom (DOF) microscopy stage are designed as case studies to demonstrate the utility of this theory.
Conclusion: Single topical administration of sertaconazole and econazole had similar efficacy and safety but the former is associated with a lower rate of mycological recurrence one month after achieving a negative culture.
Subjects who achieved a negative response to the cold test were approximately 80% less likely to experience pain during RCT compared to subjects with soft tissue signs of anesthesia alone.
