In London and Paris, stations are trenched in the ground, rendering them difficult to remove.
The interdependence of these currently uncultured microbes renders them difficult to study, and our knowledge of their physiological capabilities in nature is limited.
It renders them difficult to remove by conventional flotation steps.
Because these windows are not counterbalanced, which renders them difficult to open and keep open, they usually remain closed.
The quiescent status of cancer stem cells renders them difficult to eradicate with chemotherapy that typically target proliferating cells.
Although dopaminergic fibers course through the MFB, they are fine and unmyelinated [80], rendering them difficult to activate with brief pulses of extracellular current delivered through macroelectrodes [81], [82], [83].
However, their small size and the complex synovial fluid matrix renders them difficult to detect.
These patients often have changing or incomplete contact information and are reluctant to disclose such information, rendering them difficult to reach.
Though caTissue has the capacity to dynamically add new data elements and forms, these data are stored in a manner that renders them difficult to extract and exchange in an interoperating system.
But even for many apparently well-characterized gene families, the best estimation of the gene tree often includes ambiguous key nodes, which renders them difficult to utilize as reference trees.
