Example sentences of "[is] difficult [subord] [prep] " in BNC.

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1 Down the hill from the village is King 's Road Lock from where relaunching is difficult although with care it is possible to climb down onto a floating baulk of timber moored on the left side .
2 Desalination plants also require a lot of energy , and building new power plants is difficult because of the state 's strict laws to control pollution .
3 Reproducible immobilisation is difficult because of problems of variable denaturation of the protein during retention .
4 Diagnosis of HIV infection in new-born infants is difficult because of the presence of the mothers ' antibodies in the babies ' blood .
5 Comparison of these studies is difficult because of different patient populations .
6 Comparing the absolute number of patents filed between countries is difficult because of different national patent regimes .
7 As a general rule , the last three months are associated with weight gain , your centre of gravity is affected by the baby and your breathing is difficult because of upwards pressure on the diaphragm/lungs .
8 Interpretation of the relative benefits of these combinations is difficult because of the publication bias for positive reporting , the limited numbers of patients treated , and the inherent difficulty of accurately assessing response .
9 Comparison is difficult because of variability of drug administration ( route , dosage , and schedule ) , patient composition , and type of ERCP procedures performed .
10 To extend the loan is difficult because after ten years , any picture becomes ‘ patrimoine espagnol ’ .
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