In tissue engineering, vascularization of implanted scaffolds is often inadequate, and this seriously obstructs the survival of cells, which perish due to a lack of oxygen and nutrients, and insufficient removal of waste products.
This obstructs its specificity and makes the results less reliable and ambiguous.
This obstructs the development of efficient policies and actions for facing and managing current and future environmental challenges in the public health sector.
This obstructs its use as active material in photovoltaics (PVs) and photodetectors (PDs).
However, because of atmospheric testing of nuclear weapons, the amount of tritium in the atmosphere rose and this may obstruct the interpretation of data.
As such, the 'bung' is capable of gripping the probe with considerable force, and this may obstruct the lumen if used to secure microdialysis or other catheters.
Non-integration of TB and ART services is likely to represent a major obstacle to timely initiation of ART in patients with HIV-associated TB and this may obstruct progress towards reducing mortality in this patient group.
In order to promote participation by parents in their child's care, it is therefore necessary to improve understanding of what facilitates and what obstructs this participation.
But to the I.M.F., as well as the Treasury Department, there needs to be a way to accomplish international restructurings that allows overly indebted countries to eventually recover, and this decision could obstruct that.
"This causes suffering and obstructs development".
