The phrase "a lack of explicit" is correct and usable in written English.
It can be used when discussing the absence of something that is clearly defined or stated.
Example: "The report highlighted a lack of explicit guidelines for the project, which led to confusion among team members."
Alternatives: "an absence of clear" or "a deficiency of explicit".
On a negative note, the textbooks were criticized for a lack of explicit attention to grammar and vocabulary instruction.
Conversely, misclassifications occur often in TIA clinics because of a lack of explicit diagnostic criteria for TIA.
In addition, despite a lack of explicit instruction, students generated phylogenetic trees that were largely conventional and accurate.
Concreteness continued to modulate neural response to verbs in the same pattern as in the N400 during 500 1000 ms. The absence of a sustained frontal negativity was proposed to be due to the use of single character stimuli and a lack of explicit contrast in concreteness across stimuli that did not encourage imagery processing.
There was a lack of explicit recognition that infants could be identified as overweight or obese.
Path dependency is often related to a weak organizational consciousness and a lack of explicit service portfolio policies [ 30].
However, a lack of spatially explicit, publicly available sources of data on anthropogenic disturbances and natural resource extraction challenges the development of detailed wilderness inventories.
The results show a complete centralisation of experiences in technological developments, the majority of them focussed in Higher Education, as well as a lack of an explicit pedagogical perspective in the experiences analysed, especially those with greater impact.
Weaknesses across the studies included a lack of an explicit definition of recurrence, lack of reported confounding factors or analysis of these factors and lack of blinding to risk factors in the follow-up.
Expectations of long hours, coupled with a lack of their explicit recognition, may be symptomatic of 'institutionalised disrespect' of workers, 34 which, if it is felt to be normal, may lead to further dysfunctional behaviours.
Validation of flood models remains challenging due to a lack of available spatially-explicit data; traditionally measured data and validation approaches reveal little about the ability of a model to simulate the complex dynamics of floodplain flows, including the pathways, timeline, and impacts of an event.
