Sentence examples for models face several from inspiring English sources

These models face several problems.

The evaluation of the proposed models faced several problems: (1) Whereas most PRO's are related to stable disease situations, PP is characterized by attacks; (2) PRO's are validated by comparison to another quantitative standardized measure, which has not been published for PP; (3) The responsiveness of PRO is validated by an effective treatment, which is also not available in PP.

Considerable judgment, in fact, is called for in the specification of the model, balancing between including 'too few' and 'too many' variables"); and Robert S. Pindyck & Daniel L. Rubinfeld, Econometric Models and Economic Forecasts, 162-66 (3d ed., McGraw -HInc.Inc. 1991 197676) ("If we are unsure of which explanatory variables ought to appear in a model, we face several trade-offs.

However, researchers sequencing transcripts from novel species with few genomic resources or from species that are evolutionarily distant from a sequenced model organism might face several challenges when evaluating the data.

They face several changes.

The agencies face several barriers.

Alas, electric cars still face several roadblocks.

Mr. Chilton's plans face several hurdles.

They face several hurdles.

Future power systems face several challenges.

They also face several genetic threats.