Sentence examples for variability in occurrence from inspiring English sources
From Table 3, it is evident that most of the observed CEJ events are during Kp < 1 (13 events) and Kp < 2 (20 events), highlighting the <span class="lh">variability in occurrence phenomena of CEJ during quiet days.
Variability in occurrence of CEJs could also be due to the differences in local wind shears that modify jet fields (especially during the noon hours), (Reddy and Devasia 1981) in addition to the observed changes in neutral winds (Sridharan et al. 2002; Vineeth et al. 2007).
The model was highly accurate, and explained 95% of the variability in occurrence (98% of the absences and 95% of the presences).
Although these exacerbations are often caused by bacterial or viral infections [ 2] or inhaled particles, the variability in occurrence within COPD patients and the familial aggregation of exacerbations indicate that other factors such as genetics are important in determining the onset, severity and frequency [ 3].
In Denmark, Vigre et al [ 14] reported the existence of two large spatial clusters of positive herds during an initial 2-y period of disease occurrence, and although geographical variability in the occurrence of disease existed, directionality was not apparent from the results, nor was it discussed.
The rationale for including year of birth as an independent variable was that there was variability in the occurrence of obstetric and neonatal diagnoses during the observation period.
Fig. 2 Variability in tephra occurrence in marine cores (the scale bar is 2 cm).
Understanding the daily variability in the occurrence of EPBs is an ongoing challenge.
The daily variability in EPB occurrence has been more difficult to understand for a number of reasons.
That is, during seasons that provide favorable EPB growth conditions, the daily variability in EPB occurrence is controlled by the days for which EPBs are suppressed.
Spatiotemporal variability in the occurrence and geochemistry of tephras can also be used to trace the magmatic evolution of island arcs and their relationships to regional tectonics.
