The phrase "ad hoc event" is correct and usable in written English.
It is typically used to describe an event that is created or arranged for a specific purpose or situation, often on a temporary basis.
Example: "The committee organized an ad hoc event to address the urgent community concerns that arose last week."
Alternatives: "temporary event" or "special event".
"As new ideas and innovations percolate to the surface, you have an established way to look at them, evaluate them, deal with them and make a decision on how you want to treat them, rather than treating each one as an ad hoc event that comes along".
These results show that the space of maximum parsimony solutions is complex and sensitive to the event costs, and thus, choosing ad hoc event costs may result in misrepresenting evolutionary histories.
An ad hoc event committee reviewed the case record of each patient to validate the diagnosis of renal, retinal, and cardiovascular complications, peripheral sensory neuropathy, peripheral artery disease and LEA at baseline [ 22] and later, the incidence of outcomes during follow-up.
At the time, Formula One races ran as ad hoc events.
The emergency videoconference calls to Georgia, so frequent a month ago, are now just ad hoc events.
As for other ad hoc events in town, Nottingham Irish Centre hosts reggae and jungle nights and eclectic shindigs with menswear store and record label Mimm.
He became what Dan Cameron, the New Museum's senior curator, calls a social sculptor, staging ad hoc events, conceiving what has now come to be called (the word can make your heart sink by this point) installations.
In a series of works from the 1950s and '60s the maverick Venezuelan phytogeographer Leon Croizat strongly objected to this dispersalist explanation of species distribution, which he interpreted as ad hoc events used to explain the geographic distribution of living organisms.
In the last few years, an increasing number of NGOs have prioritised the promotion of gender equality amongst their teams and are conducting trainings and ad hoc events to encourage their local and international staff to become advocates of gender equality whatever the sector they might be working in.
Additional revenues to the municipal funding are guaranteed by the restaurant-bar and by the renting of spaces for ad hoc events.
The app does reproduce some of the features of OS X Mail, especially the automatic date entry features, but I've found that I use it to record flight times by copying and pasting them from the airline website and I'm able to create ad hoc events ("Drinks with T-Pain 5pm Weds") and even simple reminders ("call Dalai Lama tomorrow").
