Bronchoalveolar lavage (BAL) fluid analysis was performed to determine whether the sympathetic nervous system and T cells were key sources of catecholamines in current models of lung injury. Peak levels of adrenaline occurred in BAL fluids 2 h after the initiation of immune-complex-mediated injury (Fig. 4e).
An example to show covariance estimation with the Mahalanobis distances on Gaussian distributed data. For Gaussian distributed data, the distance of an observation to the mode of the distribution can be computed using its Mahalanobis distance: where and are the location and the covariance of the underlying Gaussian distribution. In practice, and are replaced by some estimates.
Now, two radially opposite points on the equator will be most distant to each other. And the distance needs to be measured in a circumferential path along the equator. So, the farthest distance in the world is 3.14*3963 miles = 12443.82 miles i.e. 19910 km. PS. Cases with larger distances are possible depending upon the path of travel and location of two points on the Earth.