The use of LIRs was considered "useful" when it permitted to eliminate at least one potential source (whose concentration was greater than the established threshold concentration).
The result of toxicological screening was considered useful when it found a toxic etiology that was not initially suspected or if it concluded to a non-toxic cause in a patient suspected of drug overdose.
Introducing CT at the middle school level itself is considered useful since it is the age at which students start deciding on future career choices based on their assessments of their skills and aptitudes.
The date of registration was, however, considered useful because it was unfailingly available in every case and is most probably closely tied with the time of producing the complaint.
A strategy including a CDR was considered useful if it did not increase the false-negative rate in the overall population (high-risk and low-risk patients), compared to an RDT strategy for all patients (figure 1).
PEGylation was considered useful for therapeutic proteins: it is non-toxic; it can improve properties related to immunogenicity, stability, and aggregation; and it can enhance the pharmacokinetic/pharmacodynamic profiles as a conjugation partner.
Although it often considered useful to define groups for management purposes, it should be noted that any arbitrary grouping of samples with sufficiently different averages of variables autocorrelated spatially could be found to be statistically different.
Purpose/ Objective: It was considered useful to find how the materials were used, how useful they were in efforts to prevent the spread of H1N1 and their contribution to change in knowledge and behaviour.
