Although in vitro tumor cell culture models have illuminated the potential therapeutic utility of a cell-permeable analog of ceramide, C6, in vivo delivery is impeded by the extreme hydrophobicity and physical-chemical properties of this bioactive lipid.
Additional aspects of service delivery that impeded the provision of services included lack of knowledge, discrepancies in provider practice, a judgmental manner of communication, and lack of time, training and organizational cessation protocols.
However, during intracellular delivery of these carriers, multiple barriers have to be overcome or the efficiency of gene delivery will be impeded.
Our own research in Afghanistan, Somalia and the occupied Palestinian territories, among other places, confirms a worrying trend in which governments' politicization and militarization of aid have impeded delivery of assistance to millions of vulnerable people and jeopardized the lives of so many humanitarian workers.
Throughout the region, roads were closed by landslides, and storms impeded delivery of supplies as the need for medicine and doctors intensified.
In addition, we found that a secondary infection with WT EPEC following pre-infection with the map/ eae/ tir triple mutant caused TER to decrease (not shown), further supporting the premise that effector delivery is not impeded in polarized cells.
The logbooks ask teachers to indicate which lessons and activities they completed with their class and to write down any factors that may have disrupted or impeded delivery of program.
The extremist presence in the town had deterred humanitarian aid deliveries and also impeded supply routes for rebel units fighting the Assad government's forces in Aleppo.
The situation was compounded by conflict and insecurity in Somalia, which impeded the delivery of food aid.
The C.P.A. had also begun purging Baath Party officials from Iraq's key ministries, which vitiated the police force and impeded the delivery of services.
Recent advances in RNAi technology are overcoming previous obstacles, such as instability in vivo, impeded drug delivery, and undesirable off-target effects.
