Each successive group of strata thus may be characterized by distinctive conodont assemblages or faunas.
In its general colour, the Grand Canyon is red, but each stratum or group of strata has a distinctive hue buff and gray, delicate green and pink, or, in its depths, brown, slate-gray, and violet.
Under these circumstances the PSI reflects the number of statistically significant groups of patients (strata) that can be identified by the instrument [ 44].
A descriptive analysis for each group of hospitals and strata was carried out using the mean and confidence interval (95%) for each dependent variable.
From a practical point of view, we thus defined 2 strata within each group: the strata of large clusters (e.g., 20% of the g clusters) and the strata of small clusters.
27 This corresponds to a standardised rate difference with weights that depend on the number of player hours in the intervention and control groups of each stratum.
For individual A from stratum iA and mixing group of type k and stratum j, we denoted by Ψ Ajkl the group of all persons with whom A made contact on a day of type l, where l = 1 for weekdays and l = 2 for weekend days.
Furthermore, we compared the median blood loss of both groups in strata of a priori defined other risk factors, if known (ie, type of vaginal delivery (normal vs assisted) or caesarean section (elective vs emergency), perineal laceration degree and ethnicity) to investigate their interaction with LMWH on the incidence of PPH.
For individual A from stratum i A and mixing group of type k and stratum j, we denoted by Ψ Ajkl the group of all persons with whom A made contact on a day of type l, where l = 1for weekdays and l = 2 for weekend days.
Because of the group of three hard thick strata located in the main roof and the residual stress of mined panel 11124, the deformation, breakage, mining-induced stress and fracture development, and the stress-relief coefficient were discontinuous and asymmetrical.
Then, aiming at enlarging the number of members retrieved for the other strata having less groups of interest (E2, E3, E5, E6 and E8), a search filter was added (members with at least 10 years of professional experience/ members with less than 10 years of professional experience) and allowed to potentially retrieve 1400 members from each group of interest composing such strata.
