Living in this temporal warp poses particular difficulties for establishing his income, because any hints at his earnings have been made inaccurate over time by inflation.
The difficulties for establishing a proven diagnosis, the better tolerance of new antifungal drugs and the demonstrated impact of early therapy have led to an extended use of empirical antifungal therapies (AF), mainly in critical and surgical patients.
Whatever the difficulties ahead for establishing a BRICS bank, China is officially on board with the concept of tighter cooperation with its peer economies.
The difficulties of establishing reproductive success for some clonal organisms, for collectives of organisms and for multi-species assemblages has led some biologists and philosophers to entertain alternative concepts of fitness.
Some possible reasons for the difficulty of establishing a definitive method for the evaluation of liver function are absence of any entirely safe substrates, the complexity of the tests, and the invasiveness of the methods.
Persico has "a deep knowledge of the clandestine side of World War II" and "a respect for the difficulty of establishing what spy masters knew, and when they knew it," Thomas Powers wrote here last year.
Estimates of how many have been killed for their media activities differ, due to the difficulty of establishing the exact motive for a murder, but range from five to 14 since 2006.
Investment professionals say that retail investors should be very careful, given the difficulty of establishing consistent prices for diamonds of widely different cuts and quality, and the traditional secrecy of the industry.
Consider, for instance, the difficulty of establishing the independence of the axiom of choice and the continuum hypotheses from the axioms of Zermelo-Fraenkel set theory.
Due to the independence of coefficients m, a and b in (1.4), the nonlinear term (uu_{x}) does not disappear after using the transformation (y=u-u_{xx}), which leads to the difficulty of establishing the estimates for term (uu_{x}).
One of the major challenges tutors faced was the difficulty of establishing objective criteria for assessing this type of student performance, especially as far as grading is concerned.
