Mechanism of Action. Levocetirizine, the active enantiomer of cetirizine, is an anti histamine; its principal effects are mediated via selective inhibition of H1 receptors. The antihistaminic activity of levocetirizine has been documented in a variety of animal and human models. In vitro binding studies revealed that levocetirizine has an affinity for the human H1-receptor 2-fold higher than that of cetirizine (Ki = 3 nmol/L vs. 6 nmol/L, respectively).
A glacier calf, or chunk of ice, measuring nearly five square miles broke away from Greenland's Jakobshavn glacier sometime in August, making it the largest piece to ever break away from one of the world's fastest melting glaciers. glacier, calf, iceberg, jakobshavn, greenland.
The record-breaking PEAK 2 PEAK Gondola links Blackcomb and Whistler Mountains. A feat of engineering, the gondola boasts the longest unsupported lift span in the world (3.024 kilometres or 1.88 miles).It is also the highest lift of its kind with an elevation of 436 metres (1,427 ft).our PEAK 2 PEAK 360 ticket includes access to the Whistler Village Gondola, any operating open-air chairlifts and the PEAK 2 PEAK Gondola. You do not need to purchase separate passes for each.