Which preposition to use with closures

of Occurrences 6%

The second sound is, without doubt, caused by the sudden closure of the semilunar valves of the pulmonary artery and the aorta, at the moment when the contraction of the ventricles is completed.

for Occurrences 1%

Party prospects dark, uncertain, sombre as night's sable curtain, Filled them, thrilled them with fantastic funkings seldom felt before; So that now, to still the beating of faint hearts, they kept repeating Futile formulas, entreating Closure for the "Obstructive Bore" With a view to Truth defeating, such they dubbed "Obstructive Bore," As sought Truth, and nothing more.

Which preposition to use with  closures