[lemma=□]
[lemma=difference]
The differences in the epidemiology of SAD may cause one to pause . The questions raised in this essay point to the necessity of considering differences in the epidemiology of SAD in terms of culture , biology , and environmental influences . The stability analysis reveals that the flux-limited diffusion methods are unconditionally stable , but the VEF equations with an arbitrary nonlinear closure can be numerically unstable for certain commonly used differencing schemes . Differences were found in prevalence rates based on data collected by experienced and inexperienced interviewers . Conventional discrete ordinates transport calculations often produce negative fluxes due to unphysical negative scattering cross sections and / or as artifacts of spatial differencing schemes such as diamond difference . " Discrimination " is the difference in risk between those who do and do not develop the disease . Because in 1977 the differences among these groups were not statistically significant , the increase in the likelihood of ambulatory care use by privately insured children in 1987 represents a gain in access to such care relative to that obtained by publicly insured and part-year uninsured children . Mistakes undermine your credibility so use a good dictionary as well as a spelling checker - - it wo n't pick up the difference between ' there ' and ' their ' , for example - - and be particularly careful with figures and data . The idea that solar-powered hydrogen plants for example can substitute for gasoline / diesel powered transportation systems is surely a fantasy ; the numbers do not merely not equate ; the orders of magnitude differences between what can be derived from solar fluxes , and what we now get from oil and gas , show an incommensurable , unbridgeable gulf between the present day energy system and anything we might ever hope for , from renewables . Spatial approximations include advanced nodal methods and fine-mesh finite difference methods . In Alaska , a simple majority is required for most annual appropriations , but if expenditures are expected to exceed the appropriation level in the prior year 's budget and a withdrawal from the budget reserve fund is needed to make up the difference , a three-fourths vote is required ( Const ., Art . The graphic look of this map we find strange for a map drawn by J.H. Young , although the engraver was J.H. Brightly and that may account for the difference from the usual Young style .