Across sub-Saharan Africa, an extreme shortage of health workers remains a critical barrier to fighting illness.
That double standard, they write, "is a critical barrier to women's equitable treatment because self-promotion is necessary for career advancement, yet only women risk penalties for it".
The lipid component, apart from its critical barrier function, is for the most part physiologically silent, although derivatives of certain membrane lipids can serve as intracellular messengers.
By ending its longstanding refusal to make a meaningful gesture toward disarmament, the I.R.A. has removed a critical barrier to fulfilling the two-year-old Good Friday peace agreement and establishing a new political order in Ulster.
A critical barrier to using companion animals in preclinical research is organizing those studies.
We can see that the critical barrier thickness decreases as the QW thickness increases.
Figure 6 shows the dependence of the critical barrier thickness on the QW thickness for different core radius.
Cultural attitudes remain a critical barrier to ecologically relevant urban design, in both public and private realms.
This was considered a critical barrier for the development of the industries by practically all of the interviewees.
Besides, a supplementary cost reduction objective function was also derived as cost is a critical barrier against safety improvement.
However the control of localizability and efficiency of the microarray is still considered as a critical barrier in practical use.
