Because explicit integration methods can be inefficient and often fail in the case of stiff problems, the use of implicit numerical integration methods is recommended in this case.
In many physical problems the use of numerical simulations presents the only path to obtain insight into the behavior and evolution of the system of interest.
To avoid these problems, the use of a porous support on the air side of the membrane to limit the O2 permeation flux was investigated.
For such problems, the use of a brute force approach is often ruled out due to the computational cost associated with solving the problem for each parameter value.
Previous studies have found that interferon beta does prevent disability, but the authors point out that many of them were marred by methodological problems — the use of control groups too ill to start medication, for example — that this study avoided.
Alice Tatah (Yaounde, Cameroon), producer/presenter, Cameroon Radio and Television: Health reporting and media approaches to public-health problems — the use of behavior-change communication in reducing the impact of HIV/AIDS on Cameroon's youthful population.
