The phrase "effectual by" is grammatically correct and can be used in written English.
It is typically used to describe something that is able to produce a desired effect or result. Example: The new marketing strategy proved to be effectual by increasing sales by 25%.
One day earlier, Cornwallis wrote a desperate plea for help: "I am of the opinion that you can do me no effectual service but by coming directly to this place".
Technical community is animatedly trying to expand groundbreaking concepts in drug delivery by challenging the new microbial agent with superior mode of action by its effectual target on the cell membrane or neither on intracellular targets [2, 3].
Once insulated from improper political influence, judges would, at least in principle, decide each case "impartially," Madison predicted, their independent judgment secured by the "most effectual precautions".
In terms of revolutions, the dissent of the middle classes proved ultimately to be both more contagious and more effectual than anything dreamed of by the Surrealists' proletarian revolt.
Our simulation results verify that intelligent slot-sub-carriered assignment multiple acess control protocol can not only provide low delays for the real-time traffic by using bandwidth reservation and effectual scheduling, but also make full use of the limited bandwidth by using a dynamic sub-carrier assignment algorithm.
No great change, to be effectual, safe, and permanent, can be achieved by a sudden impulse; the public mind, in this country, is somewhat sluggish in its movements, and requires continued reiteration to stamp it with the sense, the feeling, and the power of those arguments by which great changes are promoted.
The first effectual study of the sandstone fragments was by the Dutch epigrapher Johan Hendrik Caspar Kern.
Mr. Jefferson agreed in a letter to Mr. Madison: "We have already given in example one effectual check to the Dog of war by transferring the power of letting him loose from the Executive to the Legislative body, from those who are to spend to those who are to pay".
Our devotion — and the sacrifices inspired by that devotion — are needed to make effectual the palpable truth of human equality.
However, the effectual clinical benefits of PD-1/PD-L1 blockare are hampered by a high rate of primary resistance, where patients do not respond to PD-1/PD-L1 blockade initially.
