The phrase "absence of occurrence" is correct and usable in written English.
It can be used to describe a situation where something did not happen or was not present.
Example: "The study noted an absence of occurrence of the disease in the vaccinated group."
Alternatives: "lack of occurrence" or "non-occurrence".
The distinction is as subtle and debatable as anything in Antonioni's oeuvre – Fico says an American academic once wrote an entire treatise on the difference – but nulla is maybe the better word for "utter void", whereas niente has more to do with an absence of occurrence).
The absence of occurrence of novel phenotypes across a whole species or evolutionarily significant unit through periods of past climate change [ 15], as inferred from the Quaternary fossil record, has recently been questioned from palaeoecological perspectives [ 81].
None of these significant differences were considered to be toxicologically relevant due to a lack of dose-response relationship, relatively low magnitude of change, absence of occurrence in both sexes, and/or the lack of important changes in related clinical parameters.
Withdrawal was similarly coded by the presence or absence of its occurrence.
Figure 3B shows the frequency distributions of the (AAAATAGAAT) repeat, supporting the presence of long occurrences of the STR in SCA31 and the absence of long occurrences of length >60 bp in the other control samples.
The absence of relevant occurrences of Fagus sylvatica and Carpinus betulus in our sequence prior to 8800 cal BP, fail to give support to the glacial survival of these two taxa in the Apuseni Mountains, as hypothesized in the previous pollen and genetic studies.
However, the O-ha-tsuki form was also interpreted only as a case of retroconvergent morphology, arguing with the absence of fossil occurrences of "leafy ovuliphores" in the Mesozoic [ 5].
This approach enables consuming a data set and generating associations that a) describe the relative likelihood of an exposure and health event not co-occurring by chance, b) enable relative ranking for prioritization even in the absence of co-occurrence, and c) are generated by a simple, transparent format for communication with subject domain experts.
The time of the last attack was checked on patient's diary and the absence of an attack occurrence within the next 72 hours after the experiment was checked by phone call.
Our study placed emphasis on explicitly recording absence of an adverse occurrence when none occurred.
Cross-sectional analyses of recorded cases of CM consider either CM as a binary variable, distinguishing between absence of cases and occurrence of at least one case during lactation, or the lactation average SCC.
