Sentence examples for the serious problems is from inspiring English sources

One of the serious problems is the Sn inclusion (precipitates) formation during GeSn layer growth [10, 11].

Nearly all the serious problems were liver-related.

The serious problems are for non-wealthy Americans for whom postsecondary education remains a requirement for getting a job and/or a drain on family and personal finances.

The serious problem is "unintended acceleration".

The serious problem is that many humans are not persons.

All the world is taking care of Russia, [they think] that's where the serious problem is".

As this study pointed out, in the previous genome-wide analyses of intron gain (e.g. in mammals or in vertebrates) the serious problem was the comparison of orthologous introns in coding regions only and the sparse taxon sampling.

Among the most serious problems is the disruption of memory, or the ability to recall information that was previously learned.

One of the most serious problems is the high noise level augmented by hard flooring and bare table tops.

One of the more serious problems is that it is inconsistent with the Nicene Creed.

This limp response from the Home Office to some serious problems is no surprise.