"is perhaps useful" is grammatically correct and can be used in written English.
This phrase is used to express the possibility or likelihood of something being useful. It is often used to suggest that something may be beneficial but is not certain. Example: "Cleaning your room every day is perhaps useful for maintaining a tidy living space, but it also depends on your personal preferences."
To make this point absolutely clear, it is perhaps useful to use the analogy to the evolution of fresh water fish.
Mr. Slater's book is perhaps useful as a time line of Wal-Mart's progression from Mr. Sam's single store to the publicly traded global empire, but it hews so carefully to the company's point of view that people who don't work for Wal-Mart, or own its shares, are bound to wonder why.
It is perhaps useful to begin by visualizing the process of innovation as nothing more than the accumulation of ideas.
We can make a simplifying assumption that the innovation can be discovered within an n-dimensional Euclidean field of ideas; it is perhaps useful to think of this field as an idea space.
However, it is perhaps useful to at least describe the correspondence (this would also work in the situation of Propositions 6.11 and 6.7, where we did give invariant proofs).
In this regard, it is perhaps useful to note that temporal oscillations in virtual height with peak-to-peak amplitudes up to 20 km have been observed (Abdu et al. 2015) within a period band between 0.5 and 1.5 h, using Digisondes at Fortaleza (FTL) and São Luís (SLU).
What it's perhaps useful for is doing presentations onto HDMI screens via its HDMI output, because it can drive that while viewing something different on its own screen.
And as business travel begins to rebound after a long slump, it's perhaps useful to be reminded that on the road, "something invariably goes wrong," as Mr. Lansky says.
So it's perhaps useful to have a counterbalance in the shape of Via Katlehong, the vibrant South African dance troupe that returns Friday night, with "Katlehong Cabaret," to the Peak Performances series at the Alexander Kasser Theater at Montclair State University in New Jersey, where it was first seen in 2009.
(I did my PhD in London and remember the short winter days very well!) The treatment for SAD is no longer drug therapy, but light.Why do humans become depressed when it gets dark?We have to speculate a bit here, but the idea is that during the winter months back in the days when we had a very seasonally driven existence it was perhaps useful to be quiet, withdrawn and sleeping a lot.
It is perhaps most useful when used to independently direct further ex silico analysis.
