According to Raff [ 30], modules in biology can be defined using four basic criteria being autonomy, hierarchical structure (possibly part of an even larger hierarchical entity), physical location, and connections to other modules.
An ideal β-barrel can be defined using five parameters, (i) the number of strands (N), (ii) the shear number (S), (iii) the barrel radius (R), (iv) the strand tilt (T) and (v) the twist and coil of the β-strand.
The resulting incremental constitutive equation was defined using three basic equations for the creep, shrinkage, and development of the elastic modulus.
The geometrical parameterization of the nose has been defined using three design variables that include the most characteristic geometrical factors affecting the compression wave generated at the entry of the train and the aerodynamic drag of the train.
At Dow Theory Forecasts, timeliness is defined using three category scores from our Quadrix® stock-rating system: Historically, all three of these category scores have been helpful in picking year-ahead winners.
For our analysis, diuretic resistance was defined using three separate criteria: (1) a baseline FeNa of less than 0.2% [7, 13 15]; (2) a spot urinary sodium of less than 50 meq/L at 12 24-h 12 24-heasurinent [16]; and (3) a spot urine Na/K ratio <1.0.
The occlusal plane was defined using three points (mesiobuccal cusp tips of both mandibular first molars and a mid-point of both mandibular central incisors) as the horizontal reference plane, and a plane along the line from the cusp of the canine to the mesiobuccal cusp of the first molar and perpendicular to the occlusal plane was defined as the sagittal reference plane (Figs. 1 and 2).
Statin baseline exposure was defined using three approaches.
Exposure was defined using three mutually exclusive categories.
