A bit of municipal history is required to explain.
A very broad perspective is required to explain the history of today's Islamic world.
A new paradigm is required to explain patterns of competitive success and failure in information technology.
An identification of further redox processes is required to explain the high degree of radical scavenging.
A more complex model is required to explain the recorded Eurasian archaeological cultural mosaic.
But as the Boldface reader has no doubt noted, when one is required to explain that you're joking, the relationship never quite blossoms.
Finally, we show that human behavior, inferred by a textual analysis of messages published on the social network Twitter, is required to explain the epidemiological dynamics over time.
Additionally, Arcavi et al. estimate that the high-speed ejection of tens of solar masses is required to explain certain lines in the observed spectrum.
It then offers a comparison to show when an ideational account is required to explain a political outcome versus when a non-ideational explanation is sufficient.
The punishment must still be reasonable and the judge is required to explain the reason for a variance from the recommended sentence.
It is concluded that more experimental and theoretical work is required to explain these effects in view of their importance in turbine condenser design.
