Sentence examples for been hampered by problems from inspiring English sources
Among them are the archaeocyathan sponges in the Lower Cambrian and brachiopods (moss animals) throughout the Cambrian, but use of both groups has been hampered by problems of endemism.
An exploratory study of the relationships among these variables could provide a foundation for improving the operational and safety performance of urban arterials, however, such a study has been hampered by problems in measuring speeds.
It has been hampered by problems such as the number of new terms being created on a regular basis, the lack of standardization of technical terms between authors, and often by the fact that technical terms, such as gene names, often occur with other terminologies [1].
However, these inferences about Pacific prehistory drawn from genetic data have been hampered by problems separating ancient from recent admixture [16], and difficulties precisely dating the mitochondrial and Y chromosome haplogroups found in the Pacific due to systematic biases in rate variation over time [17], [18].
Attempts to measure the incidence of febrile illness have been hampered by problems associated with surveillance sensitivity and surveillance specificity.
Targeting solid tumours with ligand-directed cytotoxins has been hampered by problems with immunogenicity as effective therapy often requires multiple treatments resulting in the generation of neutralising antibodies, mostly against the PE38 portion of the molecule (Hassan et al, 2004).
Effective decision-making in New York was hampered by problems in command and control and in internal communications.
Hundreds of thousands of jobs would be lost, the group says, and energy alternatives would be hampered by problems.
An F.B.I. investigation two years ago that was apparently linked to Osama bin Laden's terrorist network was hampered by problems with the bureau's e-mail wiretap system.
According to the company, Consol's coal business was hampered by problems at one of its 24 mines.
Nuclear molecular imaging of these structures could be hampered by problems reaching the intracellular target or a low expression level of the receptor despite an ubiquitously available mRNA.
